diff options
Diffstat (limited to 'contrib/libobjc')
58 files changed, 23752 insertions, 0 deletions
diff --git a/contrib/libobjc/ChangeLog b/contrib/libobjc/ChangeLog new file mode 100644 index 0000000..839aa4f --- /dev/null +++ b/contrib/libobjc/ChangeLog @@ -0,0 +1,1272 @@ +2007-07-19 Release Manager + + * GCC 4.2.1 released. + +2007-05-13 Release Manager + + * GCC 4.2.0 released. + +2006-10-14 Geoffrey Keating <geoffk@apple.com> + + * Makefile.in: Use multi_basedir instead of toplevel_srcdir. + * configure.ac: Use multi.m4 from aclocal rather than custom + code. Use multi_basedir instead of toplevel_srcdir. + * aclocal.m4: Regenerate. + * configure: Regenerate. + +2006-10-10 Brooks Moses <bmoses@stanford.edu> + + * Makefile.in: Added empty "pdf" target. + +2006-07-18 Paolo Bonzini <bonzini@gnu.org> + + * configure: Regenerate. + +2006-05-23 Carlos O'Donell <carlos@codesourcery.com> + + * Makefile.in: Add install-html target. Add install-html to .PHONY + +2006-02-21 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + PR libobjc/26309 + * thr-objc.c (_XOPEN_SOURCE): Don't define on Tru64 UNIX. + +2006-01-24 David Ayers <d.ayers@inode.at> + + PR libobjc/9751 + * gc.c (class_ivar_set_gcinvisible): Replace strncpy with memcpy + and insure the new strings are '\0' termintated. + +2006-01-24 David Ayers <d.ayers@inode.at> + + PR libobjc/13946 + * configure.ac: Add include directives for --enable-objc-gc. + * Makefile.in: Ditto. + * configure: Regenerate. + + * gc.c (__objc_class_structure_encoding): Increment the used bytes + instead of the local pointer to them. + +2005-12-14 Andrew Pinski <pinskia@physics.uc.edu> + + PR objc/25360 + * objc/objc-api.c (_C_COMPLEX): New define. + * encoding.c (objc_sizeof_type): Handle _C_Complex. + (objc_alignof_type): Likewise. + (objc_skip_typespec): Likewise. + +2005-12-15 David Ayers <d.ayers@inode.at> + + PR libobjc/14382 + * README (+load,+initialize): Fix documentation to reflect + intended and implemented semantics for +load and +initialize. + +2005-12-12 Andrew Pinski <pinskia@physics.uc.edu> + + * encoding.c (TYPE_FIELDS): Fix to skip over just _C_STRUCT_B and + the name. + (get_inner_array_type): Fix to skip over _C_ARY_B and size. + (rs6000_special_round_type_align): Update for the ABI fix. + (objc_layout_finish_structure): Correct the encoding which is passed to + ROUND_TYPE_ALIGN. + +2005-12-11 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/25347 + * encoding.c (objc_sizeof_type): Don't handle _C_UNION_B special + but use the struct layout functions. + (objc_alignof_type): Likewise. + (objc_layout_structure): Handle _C_UNION_B also. + (objc_layout_structure_next_member): Likewise. + (objc_layout_finish_structure): Likewise. + +2005-12-11 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/25346 + * objc/objc-api.h (_C_BOOL): New define. + * encoding.c (objc_sizeof_type): Handle _C_BOOL. + (objc_alignof_type): Likewise. + (objc_skip_typespec): Likewise. + +2005-11-20 David Ayers <d.ayers@inode.at> + + PR libobjc/19024 + * objc/hash.h: Remove deprecated hash API. + * hash_compat.c: Remove. + * Makefile.in: Remove reference to hash_compat.c. + + * configure.ac (VERSION): Bump library version to 2:0:0. + * configure: Regenerate. + +2005-11-09 Alexandre Oliva <aoliva@redhat.com> + + PR other/4372 + * thr-objc.c (_XOPEN_SOURCE): Define. + +2005-10-07 Ulrich Weigand <uweigand@de.ibm.com> + + PR libobjc/23612 + * objc/objc-api.h (struct objc_ivar): Move definition to + global scope. + +2005-09-04 Andrew Pinski <pinskia@physics.uc.edu> + Rasmus Hahn <rassahah@neofonie.de> + + PR libobjc/23108 + * archive.c (objc_write_type): Correct the element offset. + (objc_read_type): Likewise. + +2005-08-17 Kelley Cook <kcook@gcc.gnu.org> + + * All files: Update FSF address. + +2005-08-13 Marcin Koziej <creep@desk.pl> + Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/22492 + * exception.c (PERSONALITY_FUNCTION): Fix the PC with finally. + +2005-08-13 Andrew Pinski <pinskia@physics.uc.edu> + + * Makefile.in (extra_ldflags_libobjc): New. + (libobjc$(libext).la): Add extra_ldflags_libobjc to the link line. + (libobjc_gc$(libext).la): Likewise. + * configure.ac (extra_ldflags_libgfortran): Set for *-darwin* to + "-Wl,-single_module". + * configure: Regenerate. + * linking.m (_objcInit): Remove. + +2005-07-26 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/22606 + * Makefile.in (ALL_CFLAGS): Add -fexceptions. + +2005-06-08 David Ayers <d.ayers@inode.at> + + * objc/NXConstStr.h, objc/Object.h, objc/Protocol.h, + objc/encoding.h, objc/hash.h, objc/objc-api.h, + objc/runtime.h, objc/sarray.h, objc/thr.h, + objc/typedstream.h: Do not include Objective-C headers as + system headers. + +2005-06-07 David Ayers <d.ayers@inode.at> + + * archive.c, init.c, selector.c: Include hash.h. + * archive.c, class.c, encoding.c, gc.c, hash.c, hash_compat.c, + init.c, misc.c, nil_method.c, objects.c, sarray.c, selector.c, + sendmsg.c, thr-dce.c, thr-decosf1.c, thr-irix.c, thr-mach.c, + thr-objc.c, thr-os2.c, thr-posix.c, thr-pthreads.c, thr-rtems.c, + thr-single.c, thr-solaris.c, thr-vxworks.c, thr-win32.c, thr.c: + Include Objective-C headers with quotes and objc/ directory + prefix. + +2005-05-19 Richard Henderson <rth@redhat.com> + + * exception.c: Revert last change. + +2005-05-19 David Ayers <d.ayers@inode.at> + + * exception.c: Include tsystem.h for unwind.h. + +2005-05-09 Mike Stump <mrs@apple.com> + + * configure: Regenerate. + +2005-04-12 Mike Stump <mrs@apple.com> + + * configure: Regenerate. + +2005-03-21 Zack Weinberg <zack@codesourcery.com> + + * Makefile.in: Set gcc_version here. + * configure.ac: Do not invoke TL_AC_GCC_VERSION. Adjust quoting + in definition of toolexeclibdir so that $(gcc_version) is expanded + by the Makefile. + * aclocal.m4, configure: Regenerate. + +2005-03-03 David Ayers <d.ayers@inode.at> + + * objc/hash.h (OBJC_IGNORE_DEPRECATED_API): Update deprecated + version reference. Correct typo. + +2005-03-02 David Ayers <d.ayers@inode.at> + + PR libobjc/19024 + * Makefile.in (OBJS): Add hash_compat.lo. + (OBJS_GC): Add hash_compat_gc.lo. + (hash_compat_gc.lo): New target and rule. + * objc/hash.h (hash_new, hash_delete, hash_add, hash_remove) + (hash_next, hash_value_for_key, hash_is_key_in_hash) + (hash_ptr, hash_string, compare_ptrs, compare_strings): Prefix + with objc_. Add deprecated non prefixed inlined versions. + (OBJC_IGNORE_DEPRECATED_API): New macro to hide deprecated + declarations. + * hash.c (hash_new, hash_delete, hash_add, hash_remove, hash_next) + (hash_value_for_key, hash_is_key_in_hash): Prefix with objc_ and + update callers. + * hash_compat.c: New file. + * archive.c: Update callers. + * init.c: Likewise. + * selector.c: Likewise. + * libobjc.def: Add objc_ versions of hash functions. + +2005-02-28 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/20252 + * Makefile.in (GTHREAD_FLAGS): Remove. + (ALL_CFLAGS): Remove usage of GTHREAD_FLAGS. + * thr-objc.c: Include config.h. + * configure.ac: Instead of looking at GCC's makefile, figure out if + GTHREAD_FLAGS should be defined by looking at the `thread model' + of the current gcc. + * configure: Regenerate. + * config.h.in: Regenerate. + +2005-02-28 Paolo Bonzini <bonzini@gnu.org> + + PR bootstrap/17383 + * configure.ac: Call GCC_TOPLEV_SUBDIRS. + (Determine CFLAGS for gthread): Use $host_subdir. + * configure: Regenerate. + * Makefile.in (host_subdir): New. + (INCLUDES): Use it. + +2004-12-20 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/12035 + * gc.c: Remove definition of LOGWL, modWORDSZ, and divWORDSZ since + they are not used. + Include limits.h and stdlib.h. + Define BITS_PER_WORD. + +2004-12-12 Alexander Malmberg <alexander@malmberg.org> + + * selector.c (__objc_init_selector_tables): Add missing void to + definition. + +2004-12-02 Richard Sandiford <rsandifo@redhat.com> + + * configure.ac: Use TL_AC_GCC_VERSION to set gcc_version. + * configure, aclocal.m4: Regenerate. + +2004-11-29 Kelley Cook <kcook@gcc.gnu.org> + + * configure: Regenerate for libtool change. + +2004-11-25 Kelley Cook <kcook@gcc.gnu.org> + + * configure: Regenerate for libtool reversion. + +2004-11-24 Kelley Cook <kcook@gcc.gnu.org> + + * configure: Regenerate for libtool change. + +2004-11-24 Kelley Cook <kcook@gcc.gnu.org> + + * aclocal.m4, config.h.in: Regenerate. + +2004-10-08 Mike Stump <mrs@apple.com> + Andrew Pinski <pinskia@physics.uc.edu> + + * aclocal.m4: Rename to ... + * acinclude.m4: here and also use m4_include instead of sinclude. + * aclocal.m4: Regenerate. + * configure: Regenerate. + * configure.ac: Add AM_MAINTAINER_MODE and AM_PROG_CC_C_O. + * Makefile.in (configure): Add @MAINT@ infront of configure.ac + +2004-10-08 Andrew Pinski <pinskia@physics.uc.edu> + + * archive.c: Fix all the warnings about passing unsigned char* + to char* and the other way too. + +2004-09-16 Andrew Pinski <pinskia@physics.uc.edu> + + PR libobjc/16448 + * exception.c: Include config.h + (objc_exception_throw): Change _GLIBCXX_SJLJ_EXCEPTIONS to + SJLJ_EXCEPTIONS. + * configure.ac: Find out what exception handling code we use. + * configure: Regenerate. + * config.h.in: New file, regenerate. + +2004-09-16 Andrew Pinski <apinski@apple.com> + + * encoding.c (ALTIVEC_VECTOR_MODE): Define a bogus macro. + +2004-08-28 Nathanael Nerode <neroden@gcc.gnu.org> + + * configure.ac: Switch from _GCC_TOPLEV_NONCANONICAL_TARGET to + ACX_NONCANONICAL_TARGET. + * configure: Regenerate. + +2004-08-13 Ziemowit Laski <zlaski@apple.com> + + * objc/sarray.h: Hoist include of assert.h near the top of file, + and mark the remainder of the file 'extern "C"'. + +2004-08-13 Andrew Pinski <pinskia@physics.uc.edu> + + * objc/Object.h: Move includes out of extern "C" blocks. + * objc/encoding.h: Likewise. + * objc/hash.h: Likewise. + * objc/objc-api.h: Likewise. + * objc/runtime.h: Likewise. + * objc/sarray.h: Likewise. + * objc/typedstream.h: Likewise. + +2004-08-12 Ziemowit Laski <zlaski@apple.com> + + * objc/NXConstStr.h: Update copyright date; bracket with + 'extern "C"' for C++ use; make include syntax consistent + by using <...> instead of "..."; hoist <objc/...> includes + above the 'extern "C"' block. + * objc/Object.h: Likewise. + * objc/Protocol.h: Likewise. + * objc/encoding.h: Likewise. + * objc/hash.h: Likewise. + * objc/runtime.h: Likewise. + * objc/sarray.h: Likewise. + * objc/thr.h: Likewise. + * objc/typedstream.h: Likewise. + * objc/objc-api.h: Add 'extern "C"' block for C++ use. + (objc_static_instances): For C++ case, do away with + zero-sized array. + (objc_method): Hoist definition to file scope. + (_objc_load_callback, _objc_object_alloc, class_get_class_method, + class_get_instance_method, class_create_instance, + class_get_class_name, class_get_instance_size, + class_get_meta_class, class_get_super_class, class_get_version, + class_is_class, class_is_meta_class, class_set_version, + class_get_gc_object_type, class_ivar_set_gcinvisible, + get_imp): Rename 'class' parameter to '_class'. + * objc/objc-list.h: Add 'extern "C"' block for C++ use. + * objc/objc.h: Update copyright date. + (arglist_t): Provide a union tag. + +2004-07-22 Andrew Pinski <pinskia@physics.uc.edu> + + * thr.c (__objc_thread_detach_function): Do not mark as volatile + but instead use the attribute noreturn. + +2004-06-28 Zack Weinberg <zack@codesourcery.com> + + * encoding.c: Rename target_flags with a #define to avoid + conflict with a prior declaration. + +2004-06-24 Andrew Pinski <apinski@apple.com> + + * objc/encoding.h: Wrap the functions with extern "C" for C++ + mode. + * objc/hash.h: Likewise. + * objc/objc-api.h: Likewise. + * objc/objc-list.h: Likewise. + * objc/runtime.h: Likewise. + * objc/sarray.h: Likewise. + * objc/thr.h: Likewise. + * objc/typedstream.h: Likewise. + + +2004-06-21 Nick Clifton <nickc@redhat.com> + + * encoding.c (BITS_PER_UNIT): Define if a definition is not + provided. + +2004-06-20 Alexander Malmberg <alexander@malmberg.org> + + * Makefile.in (exception.lo): Remove $(OBJC_GCFLAGS). + (exception_gc.lo): New. + (OBJS_GC): Add exception_gc.lo. + +2004-06-17 Richard Henderson <rth@redhat.com> + + * exception.c: New file. + * Makefile.in (exception.lo): New. + (OBJS): Add it. + +2004-06-14 Andrew Pinski <pinskia@physics.uc.edu> + + * linking.m (_objcInit): New empty function + for Darwin only. + +2004-06-11 Andrew Pinski <pinskia@physics.uc.edu> + + * configure.ac: Support --enable-shared=libobjc. + * configure: Regenerate. + + PR libobjc/15901 + * configure.ac: Do not disable shared by default. + * configure: Regenerate. + +2004-06-03 Nicola Pero <n.pero@mi.flashnet.it> + + * Protocol.m ([-isEqual:]): Small optimizations returning + immediately if the argument is equal to self, and accessing + the argument's name directly if it's a protocol. + +2004-06-03 David Ayers <d.ayers@inode.at> + + * Protocol.m ([-isEqual:]): Test the class of the argument. + +2004-05-25 Andrew Pinski <pinskia@physics.uc.edu> + + * configure.ac (includedir): Rename to ... + (includedirname). + * Makefile.in: s/includedir/includedirname/. + + PR target/11572 + * configure.ac (includedir): Set to "include" + except for Darwin. + (libext) Set to empty except for Darwin. + * configure: Regenerate + * Makefile.in: s/libobjc.la/libobjc$(libext).la/g. + s/include/$(includedir)/g. + +2004-05-25 Daniel Jacobowitz <drow@false.org> + + * Makefile.in: Add .NOEXPORT. + +2004-05-25 Andrew Pinski <pinskia@physics.uc.edu> + + Merge from the libobjc-branch + 2004-02-09 Andrew Pinski <pinskia@physics.uc.edu> + + * Makefile.in (OBJC_H): Change objc-deps.h to objc-decls.h. + + 2004-02-03 Andrew Pinski <pinskia@physics.uc.edu> + + * Makefile.in (OBJC_H): Add objc-deps.h. + + 2004-01-27 Nicola Pero <n.pero@mi.flashnet.it> + + * Protocol.m ([-conformsTo:]): If the argument is nil, return NO. + ([-hash], [-isEqual:]): New methods. + + 2004-01-27 Richard Frith-Macdonald <rfm@gnu.org> + + * sarray.c (sarray_free): Add a better comment. + + 2004-01-27 Adam Fedor <fedor@gnu.org> + + * hash.c (hash_add): Cast cachep to int. + * selector.c (__sel_register_typed_name): Cast + soffset_decode to int. + + 2004-01-27 Alexander Malmberg <alexander@malmberg.org> + + * selector.c: Rename register_selectors_from_list to + __objc_register_selectors_from_list. Update caller. + (__objc_register_selectors_from_list): Lock __objc_runtime_mutex + while registering selectors. Use __sel_register_typed_name instead + of sel_register_typed_name. Check for NULL method_name:s. + (pool_alloc_selector): New function. + (__sel_register_typed_name): Use pool_alloc_selector to allocate + selector structures. + * sendmsg.c (class_add_method_list): Use + __objc_register_selectors_from_list. + * objc/runtime.h: Add __objc_register_selectors_from_list. + + 2004-01-25 Adam Fedor <fedor@gnu.org> + Nicola Pero <n.pero@mi.flashnet.it> + Andrew Pinski <pinskia@physics.uc.edu> + + * objc/objc-decls.h: New file. + * objc/objc-api.h (_objc_lookup_class): Mark as export. + (_objc_load_callback): Likewise. + (_objc_object_alloc): Likewise. + (_objc_object_copy): Likewise. + (_objc_object_dispose): Likewise. + + 2004-01-25 Andrew Pinski <pinskia@physics.uc.edu> + + * archive.c: s/__inline__/inline + * sendmsg.c: Likewise. + + * encoding.c: Remove FIXME about the warning + about unused variable. + * sendmsg.c: Add a FIXME comment saying that + this should be using libffi. + + * Makefile.in (LIBTOOL): Use @LIBTOOL@ now as it works. + + +2004-05-13 Andrew Pinski <pinskia@physics.uc.edu> + + * archive.c (objc_read_class): Initialize class_name. + (objc_read_selector): Initialize selector_name. + +2004-05-09 Richard Sandiford <rsandifo@redhat.com> + + * Makefile.in (toolexecdir): Remove trailing space. + +2004-04-15 Nathanael Nerode <neroden@gcc.gnu.org> + + PR libobjc/14948 + * configure.ac: De-precious CC so multilibs work. + * configure: Regenerate. + +2004-04-14 Nathanael Nerode <neroden@gcc.gnu.org> + + * configure.ac: Restore toolexecdir. + * Makefile.in: Restore toolexecdir. + * configure: Regenerate. + +2004-04-09 Nathanael Nerode <neroden@gcc.gnu.org> + + * configure.ac: Remove (unused) glibcpp_prefixdir. + * configure: Regenerate. + + * configure.in: Rename to configure.ac. + * Makefile.in: Update to match. + + * Makefile.in: Remove toolexecdir, glibcpp_toolexecdir (unused). + Replace glibcpp_toolexeclibdir with toolexeclibdir. + * configure.in: Remove glibcpp_toolexecdir (unused). + Replace glibcpp_toolexeclibdir with toolexeclibdir. Don't generate + config.h or stamp-h (unused). Move one comment to the right place. + * configure: Regenerate. + * config.h.in: Remove (unused). + + * config.h.in: Regenerate with autoheader. + + * Makefile.in: Remove (unused) gcc_version_trigger. + * configure.in: Remove (unused) glibcpp_builddir. Don't AC_SUBST + gcc_version_trigger. + * configure: Regenerate. + + * configure.in: Switch to modern style for AC_INIT, AC_OUTPUT. + Sort file into sections. Remove dnl where appropriate. Fix + other style issues. + * configure: Regenerate. + + * configure.in: Replace old AC_PROG_CC hack with new one. + Define toplevel_srcdir in terms of srcdir, not top_srcdir (there + are no subdirectory output files, so this is fine). Change prereq + to autoconf 2.59. + * aclocal.m4: Include ../config/no-executables.m4. + * configure: Regenerate with autoconf 2.59. + + * configure.in: Improve comments on gthread_cflags. Improve m4 + quotation, and replace 'if test' with 'case', for --enable-objc-gc. + * configure: Regenerate. + + * configure.in: Move PACKAGE and VERSION settings up top. Remove + unused call to AC_PROG_LN_S. Default RANLIB to ':'. Remove + redundant checks for values of RANLIB, AR, INSTALL. + * configure: Regenerate. + + * configure.in: Clean up handling of + --enable-version-specific-runtime-libs and related variables; + replace 'if test' with 'case' where reasonable. Fix comments. + Remove useless libstdcxx_interface. + * configure: Regenerate. + + * configure.in: Use _GCC_TOPLEV_NONCANONICAL_TARGET. + Replace uses of target_alias with target_noncanonical. + * aclocal.m4: Include ../config/acx.m4. + * configure: Regenerate. + * Makefile.in: Replace uses of target_alias with target_noncanonical. + Fix copyright statement. + + * configure.in: Hand-inline bulky, confusing macros from + aclocal.m4. Replace references to "GNU Objective C" with "GCC". + Update copyright notice. Remove stuff for automake, which isn't + used in this directory. Remove emacs local variables. + * aclocal.m4: Remove hand-inlined macros. Update copyright notice. + * configure: Regenerate. + +2004-03-16 Manfred Hollstein <mh@suse.com> + + * Makefile.in, configure.in, configure: Update copyright years. + +2004-03-15 Manfred Hollstein <mh@suse.com> + + * Makefile.in (LIBOBJC_VERSION, LIBOBJC_GC_VERSION): Use + definition from configure.in. + * configure.in (PACKAGE): Add definition. + (VERSION): Add definition; substitute it in output files. + * configure: Re-generate. + +2004-03-05 Ziemowit Laski <zlaski@apple.com> + + * objc/hash.h (hash_string, compare_strings): + Add type-casts to make Objective-C++ happy. + * objc/typedstream.h (objc_get_stream_class_version): + Rename parameter from 'class' to 'class_name' to make + Objective-C++ happy. + +2004-03-01 Michael Matz <matz@suse.de> + + * Makefile.in (ALL_CFLAGS): Add -fno-strict-aliasing. + +2004-02-06 Ziemowit Laski <zlaski@apple.com> + + * objc/objc-api.h (objc_super): The 'class' field shall + be named 'super_class' #ifdef __cplusplus. + +2004-01-17 Andrew Pinski <pinskia@physics.uc.edu> + + PR target/10781 + * encoding.c (rs6000_special_round_type_align): Define. + +2004-01-14 Adam Fedor <fedor@gnu.org> + + PR libobjc/12155 + * selector.c (__objc_register_instance_methods_to_class): Free + new_list if not used. + +2004-01-09 Andrew Ruder <aeruder@ksu.edu> + + PR libobjc/11904 + * sarray.c (sarray_free): Free array->is_copy_of latter. + +2003-12-01 Zack Weinberg <zack@codesourcery.com> + + PR 11433 + * Protocol.m (descriptionForInstanceMethod): Don't dereference + instance_methods if it's NULL. + (descriptionForClassMethod): Likewise for class_methods. + +2003-10-24 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * Makefile.in (runtime-info.h): Remove -Wp. + +2003-10-21 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * Makefile.in (CC1OBJ): Remove. + (runtime-info.h): Invoke $(CC) so all MULTIFLAGS are handled + correctly. + Use .m extension for temporary file. + Remove assembler temp file. + +2003-10-20 Joseph S. Myers <jsm@polyomino.org.uk> + + * objc/hash.h (hash_string): Don't use a cast as an lvalue. + +2003-10-17 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * Makefile.in (runtime-info.h): Use MULTIFLAGS. + +2003-09-09 Alan Modra <amodra@bigpond.net.au> + + * configure: Regenerate. + +2003-08-27 Alexander Malmberg <alexander@malmberg.org> + + * Makefile.in, aclocal.m4: Update to $(libdir)/gcc/ instead of + (libdir)/gcc-lib/ when installing. + * configure: Regenerate. + +Thu Jul 10 10:27:43 2003 Nicola Pero <n.pero@mi.flashnet.it> + + libobjc/9969 + * sendmsg.c (get_imp): Fixed rare threading problem. + (__objc_responds_to): Similar fixes. + (objc_msg_lookup): Similar fixes. + (__objc_init_install_dtable): Lock the runtime before checking if the + table is installed. + +2003-05-23 Nathanael Nerode <neroden@gcc.gnu.org> + + * hash.c, init.c, libobjc.def, libobjc_entry.c, linking.m, + makefile.dos, misc.c, nil_method.c, objects.c, sarray.c, + selector.c, sendmsg.c, thr-dce.c, thr-decosf1.c, thr-irix.c, + thr-mach.c, thr-objc.c, thr-os2.c, thr-posix.c, thr-pthreads.c, + thr-rtems.c, thr-single.c, thr-solaris.c, thr-vxworks.c, + thr-win32.c, thr.c: Replace "GNU CC" with "GCC". + * Makefile.in, NXConstStr.m, Object.m, Protocol.m, archive.c, + class.c, encoding.c, gc.c, objc/NXConstStr.h, objc/Object.h, + objc/Protocol.h, objc/encoding.h, objc/hash.h, objc/objc-api.h, + objc/objc-list.h, objc/objc.h, ocjc/runtime.h, objc/sarray.h, + objc/thr.h, objc/typedstream.h: Replace "GNU CC" with "GCC". + +Tue May 13 14:56:03 2003 Richard Frith-Macdonald <rfm@gnu.org> + Nicola Pero <n.pero@mi.flashnet.it> + + libobjc/10742 + * init.c (class_superclass_of_class): New function. + (create_tree_of_subclasses_inherited_from): Use it. + (__objc_tree_insert_class): Likewise. + (class_is_subclass_of_class): Likewise. + +2003-04-11 David Chad <davidc@freebsd.org> + Loren J. Rittle <ljrittle@acm.org> + + libobjc/8562 + * objc/hash.h (hash_string): Constify correctly. + (compare_ptrs): Use direct compare. + * objc/objc-list.h (list_nth): Rename index to indx to avoid shadow. + * objc/sarray.h: Global rename index to indx to avoid shadow. + +2003-03-12 Andreas Schwab <schwab@suse.de> + + * aclocal.m4 (GLIBCPP_EXPORT_INSTALL_INFO): Avoid trailing /. in + glibcpp_toolexeclibdir. + * configure: Rebuilt. + +2003-02-20 Alexandre Oliva <aoliva@redhat.com> + + * configure.in: Propagate ORIGINAL_LD_FOR_MULTILIBS to + config.status. + * configure: Rebuilt. + +2003-01-27 Alexandre Oliva <aoliva@redhat.com> + + * aclocal.m4 (glibcpp_toolexeclibdir): Instead of + $(MULTISUBDIR), use `$CC -print-multi-os-directory`, unless + version_specific_libs is enabled. + * configure: Rebuilt. + +2003-01-09 Christian Cornelssen <ccorn@cs.tu-berlin.de> + + * Makefile.in (FLAGS_TO_PASS): Also pass DESTDIR. + (install-libs, install-headers): Prepend $(DESTDIR) to + destination paths in all (un)installation commands. + +2002-12-02 Zack Weinberg <zack@codesourcery.com> + + * thr-objc.c: Include coretypes.h and tm.h. + +2002-12-01 Zack Weinberg <zack@codesourcery.com> + + * encoding.c, sendmsg.c: Include coretypes.h and tm.h. + +2002-11-26 Nathanael Nerode <neroden@gcc.gnu.org> + + * configure.in: Remove skip-this-dir support. + * configure: Regenerate. + +2002-09-22 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Makefile.in (all): Fix multilib parallel build. + +Thu Sep 12 12:44:37 2002 Nicola Pero <n.pero@mi.flashnet.it> + + * sendmsg.c (nil_method): Declare not to take a variable number of + args. + (objc_msg_lookup): Cast nil_method to IMP before returning it. + (objc_msg_lookup_super): The same. + +2002-09-10 Jan Hubicka <jh@suse.cz> + + * nil_method.c (nil_method): No longer defined with variable + arguments. + +2002-07-02 Rodney Brown <rbrown64@csc.com.au> + + * objc/encoding.h: Fix formatting. + * objc/hash.h: Likewise. + * objc/objc-api.h: Likewise. + * objc/runtime.h: Likewise. + * objc/thr.h: Likewise. + * archive.c: Likewise. + * class.c: Likewise. + * encoding.c: Likewise. + * gc.c: Likewise. + * hash.c: Likewise. + * init.c: Likewise. + * misc.c: Likewise. + * nil_method.c: Likewise. + * objects.c: Likewise. + * sarray.c: Likewise. + * selector.c: Likewise. + * sendmsg.c: Likewise. + * thr-mach.c: Likewise. + * thr.c: Likewise. + +2002-06-25 DJ Delorie <dj@redhat.com> + + * aclocal.m4 (GLIBCPP_CONFIGURE): Split out + GLIBCPP_TOPREL_CONFIGURE. + * configure.in: Call it before AC_CANONICAL_SYSTEM. + * configure: Regenerate. + +2002-06-21 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Object.m (forward, read, write): Fix unused parameter warnings. + * encoding.c: Include <stdlib.h>. + (target_flags): Mark with attribute unused. + (atoi): Delete. + * runtime.h (__objc_selector_max_index): Change to unsigned int. + (__objc_generate_gc_type_description): Prototype. + * selector.c (__objc_selector_max_index): Change to unsigned int. + +Mon Jun 17 18:37:42 2002 Nicola Pero <n.pero@mi.flashnet.it> + + * sendmsg.c (__objc_get_forward_imp): Fix warning by making sure + we always have a return value: if __objc_msg_forward does not + supply a forwarding implementation, return the default + __builtin_apply based one. + +2002-06-15 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Object.m: Fix signed/unsigned warning. + * Protocol.m: Likewise. + * archive.c: Always include stdlib.h. + (objc_read_short, objc_read_unsigned_short, objc_read_int, + objc_read_long, __objc_read_nbyte_uint, __objc_read_nbyte_ulong): + Fix signed/unsigned warning. + (objc_write_type, objc_read_type, objc_write_types, + objc_read_types): Ensure ctype 8-bit safety. + (__objc_no_write, __objc_no_read): Mark unused parameters. + * class.c (class_table_setup): Specify void arg. + * encoding.c (atoi, objc_sizeof_type, objc_alignof_type, + objc_skip_typespec, objc_skip_offset, + objc_layout_structure_next_member): Ensure ctype 8-bit safety. + (objc_layout_structure_next_member): Ensure variables are + initialized. + * gc.c (__objc_generate_gc_type_description, + class_ivar_set_gcinvisible): Mark unused parameters. + * init.c (__objc_send_load, __objc_destroy_class_tree_node): Mark + unused parameters. + (__objc_init_protocols) Fix signed/unsigned warning. + * nil_method.c (nil_method): Mark unused parameters. + * thr.h (objc_thread_callback): Specify void arg. + * sarray.c (sarray_new, sarray_realloc, sarray_free): Fix + signed/unsigned warning. + (sarray_free): Fix formatting. + * selector.c (sel_types_match): Ensure ctype 8-bit safety. + * sendmsg.c (__objc_init_install_dtable) Mark unused parameters. + +2002-06-09 Andreas Jaeger <aj@suse.de> + + * encoding.c (objc_layout_structure_next_member): Remove unused + variable. + +2002-05-20 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Makefile.in (SHELL): Set to @SHELL@. + (WARN_CFLAGS): New. + (ALL_CFLAGS): Add $(WARN_CFLAGS). + +2002-05-16 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * aclocal.m4: Allow for PWDCMD to override hardcoded pwd. + * configure: Regenerate. + +2002-05-08 Alexandre Oliva <aoliva@redhat.com> + + * configure.in (ORIGINAL_LD_FOR_MULTILIBS): Preserve LD at + script entry, and set LD to it when configuring multilibs. + * configure: Rebuilt. + +2002-04-19 David O'Brien <obrien@FreeBSD.org> + + * encoding.c (MAX, MIN, ROUNDING): #undef before defining. + +2002-04-09 Hans-Peter Nilsson <hp@bitrange.com> + + PR objc/6107 + * objc/objc-api.h (struct objc_protocol_list): Change type of + member count from int to size_t. + +2002-02-11 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> + + PR libobjc/4039 + * aclocal.m4: Replace with version copied from libstdc++-v3. + * configure.in: Update for changes to aclocal and Makefile. + * configure: Regenerate. + * Makefile.in: Correct install of multilibs and shared libs, use + INSTALL_DATA for include files. + +Mon Dec 17 17:02:12 2001 Nicola Pero <nicola@brainstorm.co.uk> + + * init.c (__objc_exec_class): Fixed bug in the loop on unclaimed + categories - when an unclaimed category was found, the loop was + doing two steps forward instead of one, so that in certain cases + it was failing to properly load all the categories. (Reported + with fix by Alexander Malmberg <alexander@malmberg.org>). + +2001-11-14 Aldy Hernandez <aldyh@redhat.com> + + * encoding.c: Add target_flags. + +2001-11-07 Aldy Hernandez <aldyh@redhat.com> + + * objc/objc-api.h (_C_VECTOR): New. + + * encoding.c (VECTOR_TYPE): New. + +Mon Oct 29 21:29:21 2001 Nicola Pero <n.pero@mi.flashnet.it> + + * class.c: Rewritten the class table to use optimized, lock-free + lookup. This more than doubles the speed of class method + invocations. (class_table_setup), (class_table_insert), + (class_table_replace), (class_table_get_safe), + (class_table_next), (class_table_print), + (class_table_print_histogram): New functions. + (__objc_init_class_tables): Use class_table_setup. + (__objc_add_class_to_hash): Use class_table_get_safe and + class_table_insert. (objc_lookup_class), (objc_get_class): Do not + assert the existence of the table; do not lock the runtime; use + class_table_get_safe. (objc_next_class): Use class_table_next. + (__objc_resolve_class_links): Use class_table_next. + (class_pose_as): Use class_table_replace. + +2001-09-10 Ovidiu Predescu <ovidiu@cup.hp.com> + + * gc.c: Removed the DEBUG declaration. + +Wed Jul 18 12:48:56 2001 Nicola Pero <n.pero@mi.flashnet.it> + + * thr.c (objc_mutex_lock): Invoke __objc_thread_id directly, + rather than through objc_thread_id, to save a function call. + (objc_mutex_trylock, objc_mutex_unlock, objc_condition_wait): + Ditto. + +Mon Jul 16 12:15:00 2001 Nicola Pero <n.pero@mi.flashnet.it> + + * objc/objc-api.h (object_is_class): Fixed - buggy code was trying + to cast an id to a Class, which can not be done. Make the check + by using CLS_ISMETA on the class pointer instead. + (object_is_meta_class): Similar fix. + +2001-06-09 Alexandre Oliva <aoliva@redhat.com>, Stephen L Moshier <moshier@mediaone.net> + + * configure.in (AC_EXEEXT): Work around in case it expands to + nothing, as in autoconf 2.50. + * acinclude.m4: Likewise. + * configure: Rebuilt. + +2001-06-08 Nicola Pero <n.pero@mi.flashnet.it> + + * THREADS: Explain that when we compile libobjc inside GCC, we + always use thr-objc.c as a backend, which uses GCC's thread code. + +2001-06-06 Richard Frith-Macdonald <rrfm@gnu.org> + + * init.c (__objc_send_message_in_list): When setting a new entry + in __objc_load_methods use the method IMP as key, but check to see + if the method is in the hashtable by looking at the IMP also. + Also ... call the method after adding it to the hashtable rather + than before ... thus preventing an obscure possibility of infinite + recursion if a +load method itself loads a subclass. + +2001-05-25 Ovidiu Predescu <ovidiu@cup.hp.com> + + * init.c (__objc_send_message_in_list): When setting a new entry + in __objc_load_methods use the method name as key, not the method + IMP (reported by Richard Frith-Macdonald <richard@brainstorm.co.uk>). + +2001-05-09 Joseph S. Myers <jsm28@cam.ac.uk> + + * objc-features.texi: Move to ../gcc/objc.texi. + * fdl.texi: Remove. + * Makefile.in: Don't generate documentation from + objc-features.texi. + +2001-05-01 Mark Mitchell <mark@codesourcery.com> + + * fdl.texi: New file. + * objc-features.texi: Simplify. + * Makefile.in: Adjust accordingly. + +2001-04-30 Mark Mitchell <mark@codesourcery.com> + + * objc-features.texi: Use the GFDL. + +Wed Mar 21 04:44:58 EST 2001 John Wehle (john@feith.com) + + * encoding.c (REAL_TYPE): Define. + +2001-03-19 David Edelsohn <edelsohn@gnu.org> + + * encoding.c (TYPE_MODE): Define. + +2001-03-14 Nicola Pero <n.pero@mi.flashnet.it> + + * thr.c (objc_thread_add): New function. + (objc_thread_remove): Ditto. + * objc/thr.h: Declare them. + * libobjc.def: Mention them. + +2001-02-28 Ovidiu Predescu <ovidiu@cup.hp.com> + + * objc-features.texi: Document the @compatibility_alias compiler + directive (description from Nicola Pero <n.pero@mi.flashnet.it>). + +Fri Feb 23 18:12:00 2001 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * sendmsg.c (__objc_forward): Delete strlen() declaration. + +2001-02-08 Geoffrey Keating <geoffk@redhat.com> + + * configure.in: Don't run AC_PROG_CC_WORKS or AC_EXEEXT, because + we're not interested in the result and they might fail. + * configure: Regenerated. + +2001-01-12 Joseph S. Myers <jsm28@cam.ac.uk> + + * objc-features.texi: Use @email. + +2001-01-12 Joseph S. Myers <jsm28@cam.ac.uk> + + * sendmsg.c (__objc_print_dtable_stats): Don't use #ifdef inside + printf. + +2000-01-11 Richard Earnshaw <rearnsha@arm.com> + + * encoding.c (STRUCTURE_SIZE_BOUNDARY): Redefine in a way that + determines the value dynamically. + +Wed Jan 3 00:49:10 2001 Ovidiu Predescu <ovidiu@cup.hp.com> + + * sendmsg.c: Added __objc_msg_forward, a hook that allows external + libraries to provide a function that returns the real forwarding + function. This can alleviate problems __builtin_apply() and + friends have on various platforms. (Solution suggested by Helge + Hess.) + + * objc/objc-api.h: Define __objc_msg_forward. + + * sendmsg.c: Define gen_rtx_REG. + +2000-12-06 Ralf Corsepius <corsepiu@faw.uni-ulm.de> + + * thr-rtems.c: New file. Stub to compile. + +2000-09-06 Alexandre Oliva <aoliva@redhat.com> + + * configure: Rebuilt with new libtool.m4. + +Tue Aug 15 00:38:56 2000 Ovidiu Predescu <ovidiu@cup.hp.com> + + * configure.in: Create a config.h file. Check for <sched.h>. + * configure: Regenerate. + + * config.h.in: Check for <sched.h>. + +2000-08-14 Zack Weinberg <zack@wolery.cumb.org> + + * configure: Regenerate after change to ../libtool.m4. + +2000-08-14 Andreas Schwab <schwab@suse.de> + + * objc-features.texi (Top): Move @menu at end of node. + +2000-08-11 Manfred Hollstein <manfredh@redhat.com> + + * objc-features.texi: Move @node Top before @menu. + +Sun Aug 6 23:27:49 2000 Ovidiu Predescu <ovidiu@cup.hp.com> + + * objc-features.texi: Documented the new -fconstant-string-class + option. + +Sun Aug 6 22:51:16 2000 Ovidiu Predescu <ovidiu@cup.hp.com> + + * thr-posix.c: Integrated Chris Ball's <cball@fmco.com> changes to + improve the Posix thread support for Objective-C. + +2000-08-04 Zack Weinberg <zack@wolery.cumb.org> + + * aclocal.m4: Replace copy of ../libtool.m4 with + sinclude(../libtool.m4). + +Fri Jul 28 08:58:02 2000 Nicola Pero <nicola@brainstorm.co.uk> + + * configure.in: Added libtool support; build shared libraries + if --enable-shared was passed on command line. + * Makefile.in: Modified most compilation commands to use libtool. + * aclocal.m4: New symbolic link to the ../libtool.m4, from the + libtool distribution. + +Sat Jul 29 00:10:21 2000 Ovidiu Predescu <ovidiu@cup.hp.com> + + * sarray.c, Object.m: Removed the explicit prototypes for strlen + and memcpy on 64-bit platforms (Suggested by Rodney Brown + <rdb@cup.hp.com>). + +2000-05-12 H.J. Lu (hjl@gnu.org) + + * Makefile.in (GTHREAD_FLAGS): New. + (ALL_CFLAGS): Add $(GTHREAD_FLAGS). + (OBJC_THREAD_FILE): Changed to thr-objc. + + * configure.in (GTHREAD_FLAGS): New, check and replace it for + Makefile. + (OBJC_THREAD_FILE): Removed. + + * thr-objc.c: New. + +2000-07-13 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * objc/hash.h: Include string.h. + +2000-04-15 David Edelsohn <edelsohn@gnu.org> + + * Object.m (strlen): 64-bit PowerPC is a 64bit platform as well. + +2000-04-12 Jakub Jelinek <jakub@redhat.com> + + * Object.m (strlen): Provide prototype on all 64bit platforms, + not only alpha. + * sarray.c (memcpy): Likewise. + * encoding.c (objc_layout_finish_structure): Don't use + ROUND_TYPE_ALIGN on sparc. + + * encoding.c (objc_layout_structure_next_member): Do the whole + procedure even for the first member, so that we get correct + alignment. + +2000-03-29 Zack Weinberg <zack@wolery.cumb.org> + + * objc/Protocol.h, objc/objc-list.h: Change #endif labels to + comments. + +2000-02-23 Zack Weinberg <zack@wolery.cumb.org> + + * Makefile.in: Add -DIN_TARGET_LIBS to ALL_CFLAGS. + +Thu Sep 23 07:19:12 1999 Chris Ball <cball@fmco.com> + + * thr-posix.c (__objc_mutex_deallocate): made deallocate work. + +Tue Sep 21 07:47:10 1999 Jeffrey A Law (law@cygnus.com) + + * Makefile.in (gc.o, gc_gc.o): Do not pass -fgnu-runtime to + the compiler when building C code. + +Fri Aug 6 23:32:29 1999 Daniel Jacobowitz <drow@drow.them.org> + + * Makefile.in (FLAGS_TO_PASS): Include prefix, exec_prefix, + libdir, libsubdir and tooldir. + +Mon Jun 21 05:40:15 1999 John David Anglin <dave@hiauly1> + + * init.c (__objc_force_linking): Make global. + +Thu May 20 03:20:59 1999 Jeffrey A Law (law@cygnus.com) + + * configure.in (AC_EXEEXT): Remove call. + (compiler_name): Explicitly check with no extension and .exe + extension. + * configure: Regenerate. + +Sun Apr 25 01:15:34 1999 Mumit Khan <khan@xraylith.wisc.edu> + + * Makefile.in (CC1OBJ): Define in terms of CC. + (runtime-info.h): Use. + +Fri April 8 08:21:07 1999 Ovidiu Predescu <ovidiu@cup.hp.com> + + * objc-features.texi: Updated the URL to Boehm's GC page. + +Fri Mar 26 23:41:07 1999 Ovidiu Predescu <ovidiu@cup.hp.com> + + * archive.c (__objc_code_char, __objc_write_char): Explicitly specify + the char as being signed (patch from Daniel Jacobowitz + <drow@false.org>). + +Wed Mar 24 22:41:28 1999 Mumit Khan <khan@xraylith.wisc.edu> + + * configure.in (AC_PREREQ): Update to 2.13. + (AC_EXEEXT): Call to find possible file extension. + (compiler_name): Use. + * configure: Regenerate. + +Wed Jan 27 02:31:01 1999 Jeffrey A Law (law@cygnus.com) + + * Makefile.in (ALL_CFLAGS): Add -DIN_GCC. + +Tue Jan 5 01:38:53 1999 Jeffrey A Law (law@cygnus.com) + + * configure.in (thread_file): Correct and simplify code to find + the thread file. + * configure: Rebuilt. + +1998-11-26 Manfred Hollstein <manfred@s-direktnet.de> + + * configure.in (compiler_name): Add check to detect if this + language's compiler has been built. + * configure: Regenerate. + +Mon Nov 23 16:50:28 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * configure.in: Use AC_PREREQ(2.12.1). + +Thu Nov 19 20:33:37 1998 Jeffrey A Law (law@cygnus.com) + + * Makefile.in (runtime-info.h): Avoid GNU make extensions. + +Sun Nov 8 17:46:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Makefile.in (INCLUDES): Add -I$(srcdir)/$(MULTISRCTOP)../include. + +Thu Oct 22 14:34:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * configure.in: Use AC_CONFIG_AUX_DIR($topsrcdir). + +Sat Oct 17 05:21:31 1998 Ovidiu Predescu <ovidiu@slip.net> + + * objc-features.texi (Top): Changed the email address. + * objc-features.texi (Garbage Collection): Use @uref instead of @url. + +Mon Oct 11 21:25:27 1998 Ovidiu Predescu <ovidiu@slip.net> + + * encoding.c: Redefine get_inner_array_type to get the first entry + in the structure. + +Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk> + + * encoding.c (objc_skip_type_qualifiers): Handle _C_BYREF. + (objc_get_type_qualifiers): Similarly. + * objc/encoding.h (_C_BYREF): Define. + (_F_BYREF): Define. + +1998-10-07 David S. Miller <davem@pierdol.cobaltmicro.com> + + * objc/sarray.h: Make boffset be an unsigned long when sparc so it + works out on 64-bit systems. + +Tue Oct 6 20:32:06 1998 Alexandre Oliva <oliva@dcc.unicamp.br> + + * Makefile.in (INCLUDES): Make it multilib-friendly. + +Fri Oct 2 07:12:14 1998 H.J. Lu (hjl@gnu.org) + + * Makefile.in (INCLUDES): Add -I$(srcdir)/../gcc. + +Thu Oct 1 22:33:03 1998 Robert Lipe <robertl@dgii.com> + Jeffrey A Law (law@cygnus.com) + + * Makefile.in (INCLUDES): Reference gcc via $MULTIBUILDTOP. + (FLAGS_TO_PASS): Added. + (runtime-info.h): Reference cc1ibj via $MULTIBUILDTOP. + + * archive.c: Change config.h to tconfig.h. + + * configure.in: Find gcc's object directory even for multilibs. + +Wed Sep 30 18:17:17 1998 Robert Lipe <robertl@dgii.com> + + * configure.in: Escape ^ in grep string. + * configure: Rebuilt. + +Wed Sep 30 09:14:52 1998 Jeffrey A Law (law@cygnus.com) + + * All .h files pushed down into the objc/ subdirectory. + * Makefile.in (copy_headers): Corresponding changes. + * configure.in (AC_INIT): Corresponding changes. + * configure: Rebuilt. + +1998-09-30 Ben Elliston <bje@cygnus.com> + Jeff Law <law@cygnus.com> + + * Makefile.in: Rewrite. + + * configure.in: Likewise. + + * configure: Regenerate. + + * All .c files. Remove "objc" prefix when including objc header + files. Include tconfig.h, not ../tconfig.h. + +Mon Sep 21 23:27:10 1998 Ovidiu Predescu <ovidiu@slip.net> + + * encoding.c (TREE_TYPE, ARRAY_TYPE): Define. + (get_inner_array_type): Define. + +1998-09-21 Ben Elliston <bje@cygnus.com> + + * New directory. Moved files from ../gcc/objc. diff --git a/contrib/libobjc/Makefile.in b/contrib/libobjc/Makefile.in new file mode 100644 index 0000000..203629f --- /dev/null +++ b/contrib/libobjc/Makefile.in @@ -0,0 +1,376 @@ +# Makefile for GNU Objective C runtime library. +# Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, +# 2005, 2006 Free Software Foundation, Inc. + +#This file is part of GCC. + +#GCC is free software; you can redistribute it and/or modify +#it under the terms of the GNU General Public License as published by +#the Free Software Foundation; either version 2, or (at your option) +#any later version. + +#GCC is distributed in the hope that it will be useful, +#but WITHOUT ANY WARRANTY; without even the implied warranty of +#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +#GNU General Public License for more details. + +#You should have received a copy of the GNU General Public License +#along with GCC; see the file COPYING. If not, write to +#the Free Software Foundation, 51 Franklin Street, Fifth Floor, +#Boston, MA 02110-1301, USA. */ + +#This was cribbed from the libchill, libiberty and libstdc++ +#Makefile.in files. Some of this stuff may be unnecessary and +#worthless. + +SHELL = @SHELL@ +MAKEOVERRIDES= + +#### Start of system configuration section. #### + +srcdir = @glibcpp_srcdir@ +VPATH = @glibcpp_srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ +target_noncanonical = @target_noncanonical@ +gcc_version := $(shell cat $(srcdir)/../gcc/BASE-VER) +host_subdir = @host_subdir@ +top_srcdir = @top_srcdir@ +multi_basedir = @multi_basedir@ +toolexecdir = @toolexecdir@ +# Toolexecdir is used only by toolexeclibdir +toolexeclibdir = @toolexeclibdir@ + +includedirname = @includedirname@ +libext = @libext@ + +extra_ldflags_libobjc = @extra_ldflags_libobjc@ + +top_builddir = . + +libdir = $(exec_prefix)/lib +libsubdir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version) + +# Multilib support variables. +MULTISRCTOP = +MULTIBUILDTOP = +MULTIDIRS = +MULTISUBDIR = +MULTIDO = true +MULTICLEAN = true + +# Not configured per top-level version, since that doesn't get passed +# down at configure time, but overrridden by the top-level install +# target. +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_DATA = @INSTALL_DATA@ + +AR = @AR@ +AR_FLAGS = rc + +RANLIB = @RANLIB@ + +CC = @CC@ +CFLAGS = @CFLAGS@ +WARN_CFLAGS = -W -Wall -Wwrite-strings -Wstrict-prototypes +ALL_CFLAGS = -I. -I$(srcdir) $(CPPFLAGS) $(DEFS) $(CFLAGS) $(WARN_CFLAGS) \ + -DIN_GCC -DIN_TARGET_LIBS -fno-strict-aliasing -fexceptions + +# Libtool +# The following strings describe the version of the obj-C library +# begin compiled and compatibility issues. +# Please refer to Libtool documentation about how to manage these +# numbers. +LIBOBJC_VERSION = @VERSION@ +LIBOBJC_GC_VERSION = @VERSION@ +LIBTOOL = @LIBTOOL@ +LIBTOOL_COMPILE = $(LIBTOOL) --mode=compile +LIBTOOL_LINK = $(LIBTOOL) --mode=link +LIBTOOL_INSTALL = $(LIBTOOL) --mode=install +LIBTOOL_CLEAN = $(LIBTOOL) --mode=clean +#LIBTOOL_UNINSTALL = $(LIBTOOL) --mode=uninstall + +OBJC_GCFLAGS=-DOBJC_WITH_GC=1 +OBJC_THREAD_FILE=thr-objc +OBJC_BOEHM_GC=@OBJC_BOEHM_GC@ +OBJC_BOEHM_GC_INCLUDES=@OBJC_BOEHM_GC_INCLUDES@ + +INCLUDES = -I$(srcdir)/objc -I$(srcdir)/$(MULTISRCTOP)../gcc \ + -I$(srcdir)/$(MULTISRCTOP)../gcc/config \ + -I$(MULTIBUILDTOP)../../$(host_subdir)/gcc \ + -I$(srcdir)/$(MULTISRCTOP)../include \ + $(OBJC_BOEHM_GC_INCLUDES) + + +.SUFFIXES: +.SUFFIXES: .c .m .lo + +.c.lo: + $(LIBTOOL_COMPILE) $(CC) -c $(ALL_CFLAGS) $(INCLUDES) $< + +.m.lo: + $(LIBTOOL_COMPILE) $(CC) -c $(ALL_CFLAGS) $(INCLUDES) $< + +# Flags to pass to a recursive make. +FLAGS_TO_PASS = \ + "AR=$(AR)" \ + "AR_FLAGS=$(AR_FLAGS)" \ + "CC=$(CC)" \ + "CFLAGS=$(CFLAGS)" \ + "DESTDIR=$(DESTDIR)" \ + "LIBCFLAGS=$(LIBCFLAGS)" \ + "EXTRA_OFILES=$(EXTRA_OFILES)" \ + "HDEFINES=$(HDEFINES)" \ + "INSTALL=$(INSTALL)" \ + "INSTALL_DATA=$(INSTALL_DATA)" \ + "INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \ + "LDFLAGS=$(LDFLAGS)" \ + "LIBTOOL=$(LIBTOOL)" \ + "LOADLIBES=$(LOADLIBES)" \ + "PICFLAG=$(PICFLAG)" \ + "RANLIB=$(RANLIB)" \ + "SHELL=$(SHELL)" \ + "prefix=$(prefix)" \ + "exec_prefix=$(exec_prefix)" \ + "libdir=$(libdir)" \ + "libsubdir=$(libsubdir)" \ + "tooldir=$(tooldir)" + +all: libobjc$(libext).la $(OBJC_BOEHM_GC) + : $(MAKE) ; exec $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO=all + +# User-visible header files. + +OBJC_H = hash.h objc-list.h sarray.h objc.h objc-api.h \ + NXConstStr.h Object.h Protocol.h encoding.h typedstream.h \ + thr.h objc-decls.h + +# Modules that comprise the runtime library. + +OBJS = archive.lo class.lo encoding.lo gc.lo hash.lo init.lo linking.lo \ + misc.lo nil_method.lo NXConstStr.lo Object.lo objects.lo \ + Protocol.lo sarray.lo selector.lo sendmsg.lo thr.lo \ + $(OBJC_THREAD_FILE).lo exception.lo + +OBJS_GC = archive_gc.lo class_gc.lo encoding_gc.lo gc_gc.lo hash_gc.lo \ + init_gc.lo linking_gc.lo misc_gc.lo nil_method_gc.lo \ + NXConstStr_gc.lo Object_gc.lo objects_gc.lo Protocol_gc.lo \ + sarray_gc.lo selector_gc.lo sendmsg_gc.lo thr_gc.lo \ + $(OBJC_THREAD_FILE)_gc.lo exception_gc.lo + +runtime-info.h: + echo "" > tmp-runtime.m + echo "/* This file is automatically generated */" > $@ + $(CC) $(MULTIFLAGS) -print-objc-runtime-info -S tmp-runtime.m >> $@ + rm -f tmp-runtime.m tmp-runtime.s + +archive_gc.lo: archive.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +class_gc.lo: class.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +encoding_gc.lo: encoding.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +gc.lo: gc.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(INCLUDES) $< + +gc_gc.lo: gc.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +hash_gc.lo: hash.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +init_gc.lo: init.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +linking.lo: linking.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(INCLUDES) $< + +linking_gc.lo: linking.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(OBJC_GCFLAGS) $(INCLUDES) $< + +misc_gc.lo: misc.c + $(LIBTOOL_COMPILE) $(CC) -c $(ALL_CFLAGS) -o $@ $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +nil_method_gc.lo: nil_method.c + $(LIBTOOL_COMPILE) $(CC) -c $(ALL_CFLAGS) -o $@ $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +NXConstStr.lo: NXConstStr.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(INCLUDES) $< + +NXConstStr_gc.lo: NXConstStr.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(OBJC_GCFLAGS) $(INCLUDES) $< + +Object.lo: Object.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(INCLUDES) $< + +Object_gc.lo: Object.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(OBJC_GCFLAGS) $(INCLUDES) $< + +objects_gc.lo: objects.c + $(LIBTOOL_COMPILE) $(CC) -c $(ALL_CFLAGS) -o $@ $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +Protocol.lo: Protocol.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(INCLUDES) $< + +Protocol_gc.lo: Protocol.m + $(LIBTOOL_COMPILE) $(CC) -fgnu-runtime -c -o $@ $(ALL_CFLAGS) \ + $(OBJC_GCFLAGS) $(INCLUDES) $< + +sarray_gc.lo: sarray.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +selector_gc.lo: selector.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +sendmsg.lo: sendmsg.c runtime-info.h + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(INCLUDES) $< + +sendmsg_gc.lo: sendmsg.c runtime-info.h + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +thr_gc.lo: thr.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +$(OBJC_THREAD_FILE)_gc.lo: $(OBJC_THREAD_FILE).c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + $(INCLUDES) $< + +exception.lo: exception.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) \ + -fexceptions $(INCLUDES) $< + +exception_gc.lo: exception.c + $(LIBTOOL_COMPILE) $(CC) -c -o $@ $(ALL_CFLAGS) $(OBJC_GCFLAGS) \ + -fexceptions $(INCLUDES) $< + +doc: info dvi pdf html + +# No install-html support +.PHONY: install-html +install-html: + +libobjc$(libext).la: $(OBJS) + $(LIBTOOL_LINK) $(CC) -o $@ $(OBJS) \ + -rpath $(toolexeclibdir) \ + -version-info $(LIBOBJC_VERSION) $(extra_ldflags_libobjc) + +libobjc_gc$(libext).la: $(OBJS_GC) + $(LIBTOOL_LINK) $(CC) -o $@ $(OBJS_GC) \ + -rpath $(toolexeclibdir) \ + -version-info $(LIBOBJC_GC_VERSION) $(extra_ldflags_libobjc) + +# +# FIXME -- The following part does not fit in the libtool context. +# Libtool is supposed to [going to] be able to create a win 32 DLL +# without extra code but since I don't have a win machine to test +# if it already works, I leave the old code here. +# +libobjc_s.a: libobjc.la + mv libobjc.a libobjc_s.a + +# Create a relocatable DLL +libobjc.dll: libobjc_s.a libobjc_entry.o + $(CC) -mdll -Wl,--base-file -Wl,libobjc.base \ + -o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32 + $(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \ + --base-file libobjc.base --output-exp libobjc.exp + $(GCC_FOR_TARGET) -mdll -Wl,--base-file libobjc.base libobjc.exp \ + -o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32 + $(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \ + --base-file libobjc.base --output-exp libobjc.exp + $(GCC_FOR_TARGET) libobjc.exp -mdll \ + -o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32 + $(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \ + --output-lib libobjc.a +# +# +# +# +# + +info: +dvi: +pdf: +html: + +Makefile: Makefile.in config.status + $(SHELL) config.status + +config.status: configure + rm -f config.cache + CONFIG_SITE=no-such-file CC='$(CC)' AR='$(AR)' CFLAGS='$(CFLAGS)' \ + CPPFLAGS='$(CPPFLAGS)' $(SHELL) config.status --recheck + +${srcdir}/configure: @MAINT@ configure.ac + rm -f config.cache + cd ${srcdir} && autoconf + +install: install-libs install-headers + +install-libs: installdirs + $(SHELL) $(multi_basedir)/mkinstalldirs $(DESTDIR)$(toolexeclibdir) + $(LIBTOOL_INSTALL) $(INSTALL) libobjc$(libext).la $(DESTDIR)$(toolexeclibdir); + if [ "$(OBJC_BOEHM_GC)" ]; then \ + $(LIBTOOL_INSTALL) $(INSTALL) libobjc_gc$(libext).la \ + $(DESTDIR)$(toolexeclibdir);\ + fi + $(MULTIDO) $(FLAGS_TO_PASS) multi-do DO="$@" + @-$(LIBTOOL) --mode=finish $(DESTDIR)$(toolexeclibdir) + +# Copy Objective C headers to installation include directory. +install-headers: + $(SHELL) $(multi_basedir)/mkinstalldirs $(DESTDIR)$(libsubdir)/$(includedirname)/objc + for file in $(OBJC_H); do \ + realfile=$(srcdir)/objc/$${file}; \ + $(INSTALL_DATA) $${realfile} $(DESTDIR)$(libsubdir)/$(includedirname)/objc; \ + done + +check uninstall install-strip dist installcheck installdirs: + +mostlyclean: + -$(LIBTOOL_CLEAN) rm -f libobjc$(libext).la libobjc_gc$(libext).la *.lo + -rm -f runtime-info.h tmp-runtime.s *.o *.lo libobjc* xforward \ + fflags *.aux *.cp *.dvi *.pdf *.fn *.info *.ky *.log *.pg \ + *.toc *.tp *.vr *.html libobj.exp + @$(MULTICLEAN) multi-clean DO=mostlyclean + +clean: mostlyclean + rm -f config.log + @$(MULTICLEAN) multi-clean DO=clean + +distclean: clean + @$(MULTICLEAN) multi-clean DO=distclean + rm -f config.cache config.status Makefile configure + +maintainer-clean realclean: distclean + +.PHONY: mostlyclean clean distclean maintainer-clean all check uninstall \ + install-strip dist installcheck installdirs + +# Don't export variables to the environment, in order to not confuse +# configure. +.NOEXPORT: diff --git a/contrib/libobjc/NXConstStr.m b/contrib/libobjc/NXConstStr.m new file mode 100644 index 0000000..9afe30a --- /dev/null +++ b/contrib/libobjc/NXConstStr.m @@ -0,0 +1,42 @@ +/* Implementation of the NXConstantString class for Objective-C. + Copyright (C) 1995 Free Software Foundation, Inc. + Contributed by Pieter J. Schoenmakers <tiggr@es.ele.tue.nl> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#include "objc/NXConstStr.h" + +@implementation NXConstantString + +-(const char *) cString +{ + return (c_string); +} /* -cString */ + +-(unsigned int) length +{ + return (len); +} /* -length */ + +@end diff --git a/contrib/libobjc/Object.m b/contrib/libobjc/Object.m new file mode 100644 index 0000000..3d7d208 --- /dev/null +++ b/contrib/libobjc/Object.m @@ -0,0 +1,386 @@ +/* The implementation of class Object for Objective-C. + Copyright (C) 1993, 1994, 1995, 1997, 2002 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#include <stdarg.h> +#include "objc/Object.h" +#include "objc/Protocol.h" +#include "objc/objc-api.h" + +extern int errno; + +#define MAX_CLASS_NAME_LEN 256 + +@implementation Object + ++ initialize +{ + return self; +} + +- init +{ + return self; +} + ++ new +{ + return [[self alloc] init]; +} + ++ alloc +{ + return class_create_instance(self); +} + +- free +{ + return object_dispose(self); +} + +- copy +{ + return [[self shallowCopy] deepen]; +} + +- shallowCopy +{ + return object_copy(self); +} + +- deepen +{ + return self; +} + +- deepCopy +{ + return [self copy]; +} + +- (Class)class +{ + return object_get_class(self); +} + +- (Class)superClass +{ + return object_get_super_class(self); +} + +- (MetaClass)metaClass +{ + return object_get_meta_class(self); +} + +- (const char *)name +{ + return object_get_class_name(self); +} + +- self +{ + return self; +} + +- (unsigned int)hash +{ + return (size_t)self; +} + +- (BOOL)isEqual:anObject +{ + return self==anObject; +} + +- (int)compare:anotherObject; +{ + if ([self isEqual:anotherObject]) + return 0; + // Ordering objects by their address is pretty useless, + // so subclasses should override this is some useful way. + else if (self > anotherObject) + return 1; + else + return -1; +} + +- (BOOL)isMetaClass +{ + return NO; +} + +- (BOOL)isClass +{ + return object_is_class(self); +} + +- (BOOL)isInstance +{ + return object_is_instance(self); +} + +- (BOOL)isKindOf:(Class)aClassObject +{ + Class class; + + for (class = self->isa; class!=Nil; class = class_get_super_class(class)) + if (class==aClassObject) + return YES; + return NO; +} + +- (BOOL)isMemberOf:(Class)aClassObject +{ + return self->isa==aClassObject; +} + +- (BOOL)isKindOfClassNamed:(const char *)aClassName +{ + Class class; + + if (aClassName!=NULL) + for (class = self->isa; class!=Nil; class = class_get_super_class(class)) + if (!strcmp(class_get_class_name(class), aClassName)) + return YES; + return NO; +} + +- (BOOL)isMemberOfClassNamed:(const char *)aClassName +{ + return ((aClassName!=NULL) + &&!strcmp(class_get_class_name(self->isa), aClassName)); +} + ++ (BOOL)instancesRespondTo:(SEL)aSel +{ + return class_get_instance_method(self, aSel)!=METHOD_NULL; +} + +- (BOOL)respondsTo:(SEL)aSel +{ + return ((object_is_instance(self) + ?class_get_instance_method(self->isa, aSel) + :class_get_class_method(self->isa, aSel))!=METHOD_NULL); +} + ++ (IMP)instanceMethodFor:(SEL)aSel +{ + return method_get_imp(class_get_instance_method(self, aSel)); +} + +// Indicates if the receiving class or instance conforms to the given protocol +// not usually overridden by subclasses +// +// Modified 9/5/94 to always search the class object's protocol list, rather +// than the meta class. + ++ (BOOL) conformsTo: (Protocol*)aProtocol +{ + size_t i; + struct objc_protocol_list* proto_list; + id parent; + + for (proto_list = ((Class)self)->protocols; + proto_list; proto_list = proto_list->next) + { + for (i=0; i < proto_list->count; i++) + { + if ([proto_list->list[i] conformsTo: aProtocol]) + return YES; + } + } + + if ((parent = [self superClass])) + return [parent conformsTo: aProtocol]; + else + return NO; +} + +- (BOOL) conformsTo: (Protocol*)aProtocol +{ + return [[self class] conformsTo:aProtocol]; +} + +- (IMP)methodFor:(SEL)aSel +{ + return (method_get_imp(object_is_instance(self) + ?class_get_instance_method(self->isa, aSel) + :class_get_class_method(self->isa, aSel))); +} + ++ (struct objc_method_description *)descriptionForInstanceMethod:(SEL)aSel +{ + return ((struct objc_method_description *) + class_get_instance_method(self, aSel)); +} + +- (struct objc_method_description *)descriptionForMethod:(SEL)aSel +{ + return ((struct objc_method_description *) + (object_is_instance(self) + ?class_get_instance_method(self->isa, aSel) + :class_get_class_method(self->isa, aSel))); +} + +- perform:(SEL)aSel +{ + IMP msg = objc_msg_lookup(self, aSel); + if (!msg) + return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; + return (*msg)(self, aSel); +} + +- perform:(SEL)aSel with:anObject +{ + IMP msg = objc_msg_lookup(self, aSel); + if (!msg) + return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; + return (*msg)(self, aSel, anObject); +} + +- perform:(SEL)aSel with:anObject1 with:anObject2 +{ + IMP msg = objc_msg_lookup(self, aSel); + if (!msg) + return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; + return (*msg)(self, aSel, anObject1, anObject2); +} + +- (retval_t)forward:(SEL)aSel :(arglist_t)argFrame +{ + (void) argFrame; /* UNUSED */ + return (retval_t)[self doesNotRecognize: aSel]; +} + +- (retval_t)performv:(SEL)aSel :(arglist_t)argFrame +{ + return objc_msg_sendv(self, aSel, argFrame); +} + ++ poseAs:(Class)aClassObject +{ + return class_pose_as(self, aClassObject); +} + +- (Class)transmuteClassTo:(Class)aClassObject +{ + if (object_is_instance(self)) + if (class_is_class(aClassObject)) + if (class_get_instance_size(aClassObject)==class_get_instance_size(isa)) + if ([self isKindOf:aClassObject]) + { + Class old_isa = isa; + isa = aClassObject; + return old_isa; + } + return nil; +} + +- subclassResponsibility:(SEL)aSel +{ + return [self error:"subclass should override %s", sel_get_name(aSel)]; +} + +- notImplemented:(SEL)aSel +{ + return [self error:"method %s not implemented", sel_get_name(aSel)]; +} + +- shouldNotImplement:(SEL)aSel +{ + return [self error:"%s should not implement %s", + object_get_class_name(self), sel_get_name(aSel)]; +} + +- doesNotRecognize:(SEL)aSel +{ + return [self error:"%s does not recognize %s", + object_get_class_name(self), sel_get_name(aSel)]; +} + +- error:(const char *)aString, ... +{ +#define FMT "error: %s (%s)\n%s\n" + char fmt[(strlen((char*)FMT)+strlen((char*)object_get_class_name(self)) + +((aString!=NULL)?strlen((char*)aString):0)+8)]; + va_list ap; + + sprintf(fmt, FMT, object_get_class_name(self), + object_is_instance(self)?"instance":"class", + (aString!=NULL)?aString:""); + va_start(ap, aString); + objc_verror(self, OBJC_ERR_UNKNOWN, fmt, ap); + va_end(ap); + return nil; +#undef FMT +} + ++ (int)version +{ + return class_get_version(self); +} + ++ setVersion:(int)aVersion +{ + class_set_version(self, aVersion); + return self; +} + ++ (int)streamVersion: (TypedStream*)aStream +{ + if (aStream->mode == OBJC_READONLY) + return objc_get_stream_class_version (aStream, self); + else + return class_get_version (self); +} + +// These are used to write or read the instance variables +// declared in this particular part of the object. Subclasses +// should extend these, by calling [super read/write: aStream] +// before doing their own archiving. These methods are private, in +// the sense that they should only be called from subclasses. + +- read: (TypedStream*)aStream +{ + (void) aStream; /* UNUSED */ + // [super read: aStream]; + return self; +} + +- write: (TypedStream*)aStream +{ + (void) aStream; /* UNUSED */ + // [super write: aStream]; + return self; +} + +- awake +{ + // [super awake]; + return self; +} + +@end diff --git a/contrib/libobjc/Protocol.m b/contrib/libobjc/Protocol.m new file mode 100644 index 0000000..645e991 --- /dev/null +++ b/contrib/libobjc/Protocol.m @@ -0,0 +1,182 @@ +/* This file contains the implementation of class Protocol. + Copyright (C) 1993, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#include "objc/Protocol.h" +#include "objc/objc-api.h" + +/* Method description list */ +struct objc_method_description_list { + int count; + struct objc_method_description list[1]; +}; + + +@implementation Protocol +{ +@private + char *protocol_name; + struct objc_protocol_list *protocol_list; + struct objc_method_description_list *instance_methods, *class_methods; +} + +/* Obtaining attributes intrinsic to the protocol */ + +- (const char *)name +{ + return protocol_name; +} + +/* Testing protocol conformance */ + +- (BOOL) conformsTo: (Protocol *)aProtocolObject +{ + size_t i; + struct objc_protocol_list* proto_list; + + if (aProtocolObject == nil) + return NO; + + if (!strcmp(aProtocolObject->protocol_name, self->protocol_name)) + return YES; + + for (proto_list = protocol_list; proto_list; proto_list = proto_list->next) + { + for (i=0; i < proto_list->count; i++) + { + if ([proto_list->list[i] conformsTo: aProtocolObject]) + return YES; + } + } + + return NO; +} + +/* Looking up information specific to a protocol */ + +- (struct objc_method_description *) descriptionForInstanceMethod:(SEL)aSel +{ + int i; + struct objc_protocol_list* proto_list; + const char* name = sel_get_name (aSel); + struct objc_method_description *result; + + if (instance_methods) + for (i = 0; i < instance_methods->count; i++) + { + if (!strcmp ((char*)instance_methods->list[i].name, name)) + return &(instance_methods->list[i]); + } + + for (proto_list = protocol_list; proto_list; proto_list = proto_list->next) + { + size_t j; + for (j=0; j < proto_list->count; j++) + { + if ((result = [proto_list->list[j] + descriptionForInstanceMethod: aSel])) + return result; + } + } + + return NULL; +} + +- (struct objc_method_description *) descriptionForClassMethod:(SEL)aSel; +{ + int i; + struct objc_protocol_list* proto_list; + const char* name = sel_get_name (aSel); + struct objc_method_description *result; + + if (class_methods) + for (i = 0; i < class_methods->count; i++) + { + if (!strcmp ((char*)class_methods->list[i].name, name)) + return &(class_methods->list[i]); + } + + for (proto_list = protocol_list; proto_list; proto_list = proto_list->next) + { + size_t j; + for (j=0; j < proto_list->count; j++) + { + if ((result = [proto_list->list[j] + descriptionForClassMethod: aSel])) + return result; + } + } + + return NULL; +} + +- (unsigned) hash +{ + /* Compute a hash of the protocol_name; use the same hash algorithm + * that we use for class names; protocol names and class names are + * somewhat similar types of string spaces. + */ + int hash = 0, index; + + for (index = 0; protocol_name[index] != '\0'; index++) + { + hash = (hash << 4) ^ (hash >> 28) ^ protocol_name[index]; + } + + hash = (hash ^ (hash >> 10) ^ (hash >> 20)); + + return hash; +} + +/* + * Equality between formal protocols is only formal (nothing to do + * with actually checking the list of methods they have!). Two formal + * Protocols are equal if and only if they have the same name. + * + * Please note (for comparisons with other implementations) that + * checking the names is equivalent to checking that Protocol A + * conforms to Protocol B and Protocol B conforms to Protocol A, + * because this happens iff they have the same name. If they have + * different names, A conforms to B if and only if A includes B, but + * the situation where A includes B and B includes A is a circular + * dependency between Protocols which is forbidden by the compiler, so + * A conforms to B and B conforms to A with A and B having different + * names is an impossible case. + */ +- (BOOL) isEqual: (id)obj +{ + if (obj == self) + return YES; + + if ([obj isKindOf: [Protocol class]]) + { + if (strcmp (protocol_name, ((Protocol *)obj)->protocol_name) == 0) + return YES; + } + + return NO; +} +@end + diff --git a/contrib/libobjc/README b/contrib/libobjc/README new file mode 100644 index 0000000..093116f --- /dev/null +++ b/contrib/libobjc/README @@ -0,0 +1,104 @@ + +GNU Objective C notes +********************* + +This document is to explain what has been done, and a little about how +specific features differ from other implementations. The runtime has +been completely rewritten in gcc 2.4. The earlier runtime had several +severe bugs and was rather incomplete. The compiler has had several +new features added as well. + +This is not documentation for Objective C, it is usable to someone +who knows Objective C from somewhere else. + + +Runtime API functions +===================== + +The runtime is modeled after the NeXT Objective C runtime. That is, +most functions have semantics as it is known from the NeXT. The +names, however, have changed. All runtime API functions have names +of lowercase letters and underscores as opposed to the +`traditional' mixed case names. + The runtime api functions are not documented as of now. +Someone offered to write it, and did it, but we were not allowed to +use it by his university (Very sad story). We have started writing +the documentation over again. This will be announced in appropriate +places when it becomes available. + + +Protocols +========= + +Protocols are now fully supported. The semantics is exactly as on the +NeXT. There is a flag to specify how protocols should be typechecked +when adopted to classes. The normal typechecker requires that all +methods in a given protocol must be implemented in the class that +adopts it -- it is not enough to inherit them. The flag +`-Wno-protocol' causes it to allow inherited methods, while +`-Wprotocols' is the default which requires them defined. + + ++load +=========== +This method, if defined, is called for each class and category +implementation when the class is loaded into the runtime. This method +is not inherited, and is thus not called for a subclass that doesn't +define it itself. Thus, each +load method is called exactly once by +the runtime. The runtime invocation of this method is thread safe. + + ++initialize +=========== + +This method, if defined, is called before any other instance or class +methods of that particular class. For the GNU runtime, this method is +not inherited, and is thus not called as initializer for a subclass that +doesn't define it itself. Thus, each +initialize method is called exactly +once by the runtime (or never if no methods of that particular class is +never called). It is wise to guard against multiple invocations anyway +to remain portable with the NeXT runtime. The runtime invocation of +this method is thread safe. + + +Passivation/Activation/Typedstreams +=================================== + +This is supported in the style of NeXT TypedStream's. Consult the +headerfile Typedstreams.h for api functions. I (Kresten) have +rewritten it in Objective C, but this implementation is not part of +2.4, it is available from the GNU Objective C prerelease archive. + There is one difference worth noting concerning objects stored with +objc_write_object_reference (aka NXWriteObjectReference). When these +are read back in, their object is not guaranteed to be available until +the `-awake' method is called in the object that requests that object. +To objc_read_object you must pass a pointer to an id, which is valid +after exit from the function calling it (like e.g. an instance +variable). In general, you should not use objects read in until the +-awake method is called. + + +Acknowledgements +================ + +The GNU Objective C team: Geoffrey Knauth <gsk@marble.com> (manager), +Tom Wood <wood@next.com> (compiler) and Kresten Krab Thorup +<krab@iesd.auc.dk> (runtime) would like to thank a some people for +participating in the development of the present GNU Objective C. + +Paul Burchard <burchard@geom.umn.edu> and Andrew McCallum +<mccallum@cs.rochester.edu> has been very helpful debugging the +runtime. Eric Herring <herring@iesd.auc.dk> has been very helpful +cleaning up after the documentation-copyright disaster and is now +helping with the new documentation. + +Steve Naroff <snaroff@next.com> and Richard Stallman +<rms@gnu.ai.mit.edu> has been very helpful with implementation details +in the compiler. + + +Bug Reports +=========== + +Please read the section `Submitting Bugreports' of the gcc manual +before you submit any bugs. diff --git a/contrib/libobjc/README.threads b/contrib/libobjc/README.threads new file mode 100644 index 0000000..5f15bd9 --- /dev/null +++ b/contrib/libobjc/README.threads @@ -0,0 +1,50 @@ +============================================================================== +README.threads - Wed Nov 29 15:16:24 EST 1995 +------------------------------------------------------------------------------ + +Limited documentation is available in the THREADS file. + +This version has been tested on Sun Solaris, SGI Irix, and Windows NT. +It should also work on any single threaded system. + +Thanks go to the following people for help test and debug the library: + + Scott Christley, scottc@ocbi.com + Andrew McCallum, mccallum@cs.rochester.edu + +galen +gchunt@cs.rochester.edu + +Any questions, bug reports, etc should be directed to: + +Scott Christley, scottc@ocbi.com + +Please do not bug Galen with email as he no longer supports the code. + +============================================================================== +Changes from prior releases (in revered chronological order): +------------------------------------------------------------------------------ + +* Fixed bug in copy part of sarray_realloc. I had an < which should + have been <=. (Bug report from Scott). + +------------------------------------------------------------------------------ + +* Support for DEC OSF/1 is definitely broken. My programs always + seg-fault when I link with libpthreads.a. + +* Thread id's are no longer int's, but are instead of type + _objc_thread_t which is typedef'ed from a void *. An invalid thread + id is denoted by NULL and not -1 as before. + +------------------------------------------------------------------------------ + +* Renamed thread-winnt.c to thread-win32.c to better reflect support + for the API on both Windows NT and Windows 95 platforms. + (Who knows, maybe even Win32s :-). + +* Fixed bugs in Win32 support as per report from Scott Christley. + +* Fixed bug in sarray_get as per report from Scott Christley. + + diff --git a/contrib/libobjc/THREADS b/contrib/libobjc/THREADS new file mode 100644 index 0000000..8a43683 --- /dev/null +++ b/contrib/libobjc/THREADS @@ -0,0 +1,377 @@ +This file describes in little detail the modifications to the +Objective-C runtime needed to make it thread safe. + +First off, kudos to Galen Hunt who is the author of this great work. + +If you have an comments or just want to know where to +send me money to express your undying gratitude for threading the +Objective-C runtime you can reach Galen at: + + gchunt@cs.rochester.edu + +Any questions, comments, bug reports, etc. should send email either to the +GCC bug account or to: + + Scott Christley <scottc@net-community.com> + +* Sarray Threading: + +The most critical component of the Objective-C runtime is the sparse array +structure (sarray). Sarrays store object selectors and implementations. +Following in the tradition of the Objective-C runtime, my threading +support assumes that fast message dispatching is far more important +than *ANY* and *ALL* other operations. The message dispatching thus +uses *NO* locks on any kind. In fact, if you look in sarray.h, you +will notice that the message dispatching has not been modified. +Instead, I have modified the sarray management functions so that all +updates to the sarray data structure can be made in parallel will +message dispatching. + +To support concurrent message dispatching, no dynamically allocated +sarray data structures are freed while more than one thread is +operational. Sarray data structures that are no longer in use are +kept in a linked list of garbage and are released whenever the program +is operating with a single thread. The programmer can also flush the +garbage list by calling sarray_remove_garbage when the programmer can +ensure that no message dispatching is taking place concurrently. The +amount of un-reclaimed sarray garbage should normally be extremely +small in a real program as sarray structures are freed only when using +the "poseAs" functionality and early in program initialization, which +normally occurs while the program is single threaded. + +****************************************************************************** +* Static Variables: + +The following variables are either statically or globally defined. This list +does not include variables which are internal to implementation dependent +versions of thread-*.c. + +The following threading designations are used: + SAFE : Implicitly thread safe. + SINGLE : Must only be used in single thread mode. + MUTEX : Protected by single global mutex objc_runtime_mutex. + UNUSED : Not used in the runtime. + +Variable Name: Usage: Defined: Also used in: +=========================== ====== ============ ===================== +__objc_class_hash MUTEX class.c +__objc_class_links_resolved UNUSED class.c runtime.h +__objc_class_number MUTEX class.c +__objc_dangling_categories UNUSED init.c +__objc_module_list MUTEX init.c +__objc_selector_array MUTEX selector.c +__objc_selector_hash MUTEX selector.c +__objc_selector_max_index MUTEX selector.c sendmsg.c runtime.h +__objc_selector_names MUTEX selector.c +__objc_thread_exit_status SAFE thread.c +__objc_uninstalled_dtable MUTEX sendmsg.c selector.c +_objc_load_callback SAFE init.c objc-api.h +_objc_lookup_class SAFE class.c objc-api.h +_objc_object_alloc SINGLE objects.c objc-api.h +_objc_object_copy SINGLE objects.c objc-api.h +_objc_object_dispose SINGLE objects.c objc-api.h +frwd_sel SAFE2 sendmsg.c +idxsize MUTEX sarray.c sendmsg.c sarray.h +initialize_sel SAFE2 sendmsg.c +narrays MUTEX sarray.c sendmsg.c sarray.h +nbuckets MUTEX sarray.c sendmsg.c sarray.h +nindices MUTEX sarray.c sarray.h +previous_constructors SAFE1 init.c +proto_class SAFE1 init.c +unclaimed_categories MUTEX init.c +unclaimed_proto_list MUTEX init.c +uninitialized_statics MUTEX init.c + +Notes: +1) Initialized once in unithread mode. +2) Initialized value will always be same, guaranteed by lock on selector + hash table. + + +****************************************************************************** +* Frontend/Backend design: + +The design of the Objective-C runtime thread and mutex functions utilizes a +frontend/backend implementation. + +The frontend, as characterized by the files thr.h and thr.c, is a set +of platform independent structures and functions which represent the +user interface. Objective-C programs should use these structures and +functions for their thread and mutex work if they wish to maintain a +high degree of portability across platforms. + +The backend is composed of a file with the necessary code to map the ObjC +thread and mutex to a platform specific implementation. For example, the +file thr-solaris.c contains the implementation for Solaris. + +If you are compiling libobjc as part of GCC, the thr-objc.c backend is +always used; this backend uses GCC's gthread code. The thread system +is automatically configured when GCC is configured. Important: make +sure you configure GCC using `--enable-threads' if you want threads ! + +If you want to compile libobjc standalone, then you would need to +modify the configure.in and makefiles for it; and you need to pick an +appropriate backend file for the target platform; you make this choice +by assigning the OBJC_THREAD_FILE make variable to the basename of the +backend file. For example, OBJC_THREAD_FILE=thr-posix would indicate +that the generic posix backend file, thr-posix.c, should be compiled +with the ObjC runtime library. If your platform does not support +threads then you should specify the OBJC_THREAD_FILE=thr-single +backend file to compile the ObjC runtime library without thread or +mutex support; note that programs which rely upon the ObjC thread and +mutex functions will compile and link correctly but attempting to +create a thread or mutex will result in an error. + +It is questionable whether it is really necessary to have both a +frontend and backend function for all available functionality. On the +one hand, it provides a clear, consistent differentiation between what +is public and what is private with the downside of having the overhead +of multiple functions calls. For example, the function to have a +thread yield the processor is objc_thread_yield; in the current +implementation this produces a function call set: + +objc_thread_yield() -> __objc_thread_yield() -> system yield function + +This has two extra function calls over calling the platform specific function +explicitly, but the issue is whether only the overhead of a single function +is necessary. + +objc_thread_yield() -> system yield function + +This breaks the public/private dichotomy between the frontend/backend +for the sake of efficiency. It is possible to just use a preprocessor +define so as to eliminate the extra function call: + +#define objc_thread_yield() __objc_thread_yield() + +This has the undesirable effect that if objc_thread_yield is actually +turned into a function based upon future need; then ObjC programs which +access the thread functions would need to be recompiled versus just +being relinked. + +****************************************************************************** +* Threads: + +The thread system attempts to create multiple threads using whatever +operating system or library thread support is available. It does +assume that all system functions are thread safe. Notably this means +that the system implementation of malloc and free must be thread safe. +If a system has multiple processors, the threads are configured for +full parallel processing. + +* Backend initialization functions + +__objc_init_thread_system(void), int + Initialize the thread subsystem. Called once by __objc_exec_class. + Return -1 if error otherwise return 0. + +__objc_close_thread_system(void), int + Closes the thread subsystem, not currently guaranteed to be called. + Return -1 if error otherwise return 0. + +***** +* Frontend thread functions +* User programs should use these functions. + +objc_thread_detach(SEL selector, id object, id argument), objc_thread_t + Creates and detaches a new thread. The new thread starts by + sending the given selector with a single argument to the + given object. + +objc_thread_set_priority(int priority), int + Sets a thread's relative priority within the program. Valid + options are: + + OBJC_THREAD_INTERACTIVE_PRIORITY + OBJC_THREAD_BACKGROUND_PRIORITY + OBJC_THREAD_LOW_PRIORITY + +objc_thread_get_priority(void), int + Query a thread's priority. + +objc_thread_yield(void), void + Yields processor to another thread with equal or higher + priority. It is up to the system scheduler to determine if + the processor is taken or not. + +objc_thread_exit(void), int + Terminates a thread. If this is the last thread executing + then the program will terminate. + +objc_thread_id(void), int + Returns the current thread's id. + +objc_thread_set_data(void *value), int + Set a pointer to the thread's local storage. Local storage is + thread specific. + +objc_thread_get_data(void), void * + Returns the pointer to the thread's local storage. + +***** +* Backend thread functions +* User programs should *NOT* directly call these functions. + +__objc_thread_detach(void (*func)(void *arg), void *arg), objc_thread_t + Spawns a new thread executing func, called by objc_thread_detach. + Return NULL if error otherwise return thread id. + +__objc_thread_set_priority(int priority), int + Set the thread's priority, called by objc_thread_set_priority. + Return -1 if error otherwise return 0. + +__objc_thread_get_priority(void), int + Query a thread's priority, called by objc_thread_get_priority. + Return -1 if error otherwise return the priority. + +__objc_thread_yield(void), void + Yields the processor, called by objc_thread_yield. + +__objc_thread_exit(void), int + Terminates the thread, called by objc_thread_exit. + Return -1 if error otherwise function does not return. + +__objc_thread_id(void), objc_thread_t + Returns the current thread's id, called by objc_thread_id. + Return -1 if error otherwise return thread id. + +__objc_thread_set_data(void *value), int + Set pointer for thread local storage, called by objc_thread_set_data. + Returns -1 if error otherwise return 0. + +__objc_thread_get_data(void), void * + Returns the pointer to the thread's local storage. + Returns NULL if error, called by objc_thread_get_data. + + +****************************************************************************** +* Mutexes: + +Mutexes can be locked recursively. Each locked mutex remembers +its owner (by thread id) and how many times it has been locked. The +last unlock on a mutex removes the system lock and allows other +threads to access the mutex. + +***** +* Frontend mutex functions +* User programs should use these functions. + +objc_mutex_allocate(void), objc_mutex_t + Allocates a new mutex. Mutex is initially unlocked. + Return NULL if error otherwise return mutex pointer. + +objc_mutex_deallocate(objc_mutex_t mutex), int + Free a mutex. Before freeing the mutex, makes sure that no + one else is using it. + Return -1 if error otherwise return 0. + +objc_mutex_lock(objc_mutex_t mutex), int + Locks a mutex. As mentioned earlier, the same thread may call + this routine repeatedly. + Return -1 if error otherwise return 0. + +objc_mutex_trylock(objc_mutex_t mutex), int + Attempts to lock a mutex. If lock on mutex can be acquired + then function operates exactly as objc_mutex_lock. + Return -1 if failed to acquire lock otherwise return 0. + +objc_mutex_unlock(objc_mutex_t mutex), int + Unlocks the mutex by one level. Other threads may not acquire + the mutex until this thread has released all locks on it. + Return -1 if error otherwise return 0. + +***** +* Backend mutex functions +* User programs should *NOT* directly call these functions. + +__objc_mutex_allocate(objc_mutex_t mutex), int + Allocates a new mutex, called by objc_mutex_allocate. + Return -1 if error otherwise return 0. + +__objc_mutex_deallocate(objc_mutex_t mutex), int + Free a mutex, called by objc_mutex_deallocate. + Return -1 if error otherwise return 0. + +__objc_mutex_lock(objc_mutex_t mutex), int + Locks a mutex, called by objc_mutex_lock. + Return -1 if error otherwise return 0. + +__objc_mutex_trylock(objc_mutex_t mutex), int + Attempts to lock a mutex, called by objc_mutex_trylock. + Return -1 if failed to acquire lock or error otherwise return 0. + +__objc_mutex_unlock(objc_mutex_t mutex), int + Unlocks the mutex, called by objc_mutex_unlock. + Return -1 if error otherwise return 0. + +****************************************************************************** +* Condition Mutexes: + +Mutexes can be locked recursively. Each locked mutex remembers +its owner (by thread id) and how many times it has been locked. The +last unlock on a mutex removes the system lock and allows other +threads to access the mutex. + +* +* Frontend condition mutex functions +* User programs should use these functions. +* + +objc_condition_allocate(void), objc_condition_t + Allocate a condition mutex. + Return NULL if error otherwise return condition pointer. + +objc_condition_deallocate(objc_condition_t condition), int + Deallocate a condition. Note that this includes an implicit + condition_broadcast to insure that waiting threads have the + opportunity to wake. It is legal to dealloc a condition only + if no other thread is/will be using it. Does NOT check for + other threads waiting but just wakes them up. + Return -1 if error otherwise return 0. + +objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex), int + Wait on the condition unlocking the mutex until objc_condition_signal() + or objc_condition_broadcast() are called for the same condition. The + given mutex *must* have the depth 1 so that it can be unlocked + here, for someone else can lock it and signal/broadcast the condition. + The mutex is used to lock access to the shared data that make up the + "condition" predicate. + Return -1 if error otherwise return 0. + +objc_condition_broadcast(objc_condition_t condition), int + Wake up all threads waiting on this condition. It is recommended that + the called would lock the same mutex as the threads in + objc_condition_wait before changing the "condition predicate" + and make this call and unlock it right away after this call. + Return -1 if error otherwise return 0. + +objc_condition_signal(objc_condition_t condition), int + Wake up one thread waiting on this condition. + Return -1 if error otherwise return 0. + +* +* Backend condition mutex functions +* User programs should *NOT* directly call these functions. +* + +__objc_condition_allocate(objc_condition_t condition), int + Allocate a condition mutex, called by objc_condition_allocate. + Return -1 if error otherwise return 0. + +__objc_condition_deallocate(objc_condition_t condition), int + Deallocate a condition, called by objc_condition_deallocate. + Return -1 if error otherwise return 0. + +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex), int + Wait on the condition, called by objc_condition_wait. + Return -1 if error otherwise return 0 when condition is met. + +__objc_condition_broadcast(objc_condition_t condition), int + Wake up all threads waiting on this condition. + Called by objc_condition_broadcast. + Return -1 if error otherwise return 0. + +__objc_condition_signal(objc_condition_t condition), int + Wake up one thread waiting on this condition. + Called by objc_condition_signal. + Return -1 if error otherwise return 0. diff --git a/contrib/libobjc/THREADS.MACH b/contrib/libobjc/THREADS.MACH new file mode 100644 index 0000000..55de663 --- /dev/null +++ b/contrib/libobjc/THREADS.MACH @@ -0,0 +1,23 @@ +This readme refers to the file thr-mach.c. + +Under mach, thread priorities are kinda strange-- any given thread has +a MAXIMUM priority and a BASE priority. The BASE priority is the +current priority of the thread and the MAXIMUM is the maximum possible +priority the thread can assume. The developer can lower, but never +raise the maximum priority. + +The gcc concept of thread priorities is that they run at one of three +levels; interactive, background, and low. + +Under mach, this is translated to: + +interactive -- set priority to maximum +background -- set priority to 2/3 of maximum +low -- set priority to 1/3 of maximum + +This means that it is possible for a thread with the priority of +interactive to actually run at a lower priority than another thread +with a background, or even low, priority if the developer has modified +the maximum priority. + + diff --git a/contrib/libobjc/acinclude.m4 b/contrib/libobjc/acinclude.m4 new file mode 100644 index 0000000..6a0bbc4 --- /dev/null +++ b/contrib/libobjc/acinclude.m4 @@ -0,0 +1,24 @@ +dnl Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2004 +dnl Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl This program is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without +dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A +dnl PARTICULAR PURPOSE. + +m4_include(../config/acx.m4) +m4_include(../config/no-executables.m4) + +m4_include(../libtool.m4) +dnl The lines below arrange for aclocal not to bring an installed +dnl libtool.m4 into aclocal.m4, while still arranging for automake to +dnl add a definition of LIBTOOL to Makefile.in. +ifelse(yes,no,[ +AC_DEFUN([AM_PROG_LIBTOOL],) +AC_DEFUN([AC_LIBTOOL_DLOPEN],) +AC_DEFUN([AC_LIBLTDL_CONVENIENCE],) +AC_SUBST(LIBTOOL) +]) diff --git a/contrib/libobjc/aclocal.m4 b/contrib/libobjc/aclocal.m4 new file mode 100644 index 0000000..380a9c3 --- /dev/null +++ b/contrib/libobjc/aclocal.m4 @@ -0,0 +1,158 @@ +# generated automatically by aclocal 1.9.6 -*- Autoconf -*- + +# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, +# 2005 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +# AM_AUX_DIR_EXPAND -*- Autoconf -*- + +# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets +# $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to +# `$srcdir', `$srcdir/..', or `$srcdir/../..'. +# +# Of course, Automake must honor this variable whenever it calls a +# tool from the auxiliary directory. The problem is that $srcdir (and +# therefore $ac_aux_dir as well) can be either absolute or relative, +# depending on how configure is run. This is pretty annoying, since +# it makes $ac_aux_dir quite unusable in subdirectories: in the top +# source directory, any form will work fine, but in subdirectories a +# relative path needs to be adjusted first. +# +# $ac_aux_dir/missing +# fails when called from a subdirectory if $ac_aux_dir is relative +# $top_srcdir/$ac_aux_dir/missing +# fails if $ac_aux_dir is absolute, +# fails when called from a subdirectory in a VPATH build with +# a relative $ac_aux_dir +# +# The reason of the latter failure is that $top_srcdir and $ac_aux_dir +# are both prefixed by $srcdir. In an in-source build this is usually +# harmless because $srcdir is `.', but things will broke when you +# start a VPATH build or use an absolute $srcdir. +# +# So we could use something similar to $top_srcdir/$ac_aux_dir/missing, +# iff we strip the leading $srcdir from $ac_aux_dir. That would be: +# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"` +# and then we would define $MISSING as +# MISSING="\${SHELL} $am_aux_dir/missing" +# This will work as long as MISSING is not called from configure, because +# unfortunately $(top_srcdir) has no meaning in configure. +# However there are other variables, like CC, which are often used in +# configure, and could therefore not use this "fixed" $ac_aux_dir. +# +# Another solution, used here, is to always expand $ac_aux_dir to an +# absolute PATH. The drawback is that using absolute paths prevent a +# configured tree to be moved without reconfiguration. + +AC_DEFUN([AM_AUX_DIR_EXPAND], +[dnl Rely on autoconf to set up CDPATH properly. +AC_PREREQ([2.50])dnl +# expand $ac_aux_dir to an absolute path +am_aux_dir=`cd $ac_aux_dir && pwd` +]) + +# AM_CONDITIONAL -*- Autoconf -*- + +# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005 +# Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 7 + +# AM_CONDITIONAL(NAME, SHELL-CONDITION) +# ------------------------------------- +# Define a conditional. +AC_DEFUN([AM_CONDITIONAL], +[AC_PREREQ(2.52)dnl + ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])], + [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl +AC_SUBST([$1_TRUE]) +AC_SUBST([$1_FALSE]) +if $2; then + $1_TRUE= + $1_FALSE='#' +else + $1_TRUE='#' + $1_FALSE= +fi +AC_CONFIG_COMMANDS_PRE( +[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then + AC_MSG_ERROR([[conditional "$1" was never defined. +Usually this means the macro was only invoked conditionally.]]) +fi])]) + +# Add --enable-maintainer-mode option to configure. -*- Autoconf -*- +# From Jim Meyering + +# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005 +# Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 4 + +AC_DEFUN([AM_MAINTAINER_MODE], +[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) + dnl maintainer-mode is disabled by default + AC_ARG_ENABLE(maintainer-mode, +[ --enable-maintainer-mode enable make rules and dependencies not useful + (and sometimes confusing) to the casual installer], + USE_MAINTAINER_MODE=$enableval, + USE_MAINTAINER_MODE=no) + AC_MSG_RESULT([$USE_MAINTAINER_MODE]) + AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes]) + MAINT=$MAINTAINER_MODE_TRUE + AC_SUBST(MAINT)dnl +] +) + +AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE]) + +# Copyright (C) 1999, 2000, 2001, 2003, 2005 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# serial 3 + +# AM_PROG_CC_C_O +# -------------- +# Like AC_PROG_CC_C_O, but changed for automake. +AC_DEFUN([AM_PROG_CC_C_O], +[AC_REQUIRE([AC_PROG_CC_C_O])dnl +AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl +# FIXME: we rely on the cache variable name because +# there is no other way. +set dummy $CC +ac_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']` +if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" != yes"; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +]) + +m4_include([../config/multi.m4]) +m4_include([acinclude.m4]) diff --git a/contrib/libobjc/archive.c b/contrib/libobjc/archive.c new file mode 100644 index 0000000..992a696 --- /dev/null +++ b/contrib/libobjc/archive.c @@ -0,0 +1,1668 @@ + /* GNU Objective C Runtime archiving + Copyright (C) 1993, 1995, 1996, 1997, 2002, 2004 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "tconfig.h" +#include "objc/runtime.h" +#include "objc/typedstream.h" +#include "objc/encoding.h" +#include <stdlib.h> + +extern int fflush (FILE *); + +#define ROUND(V, A) \ + ({ typeof (V) __v = (V); typeof (A) __a = (A); \ + __a * ((__v + __a - 1)/__a); }) + +#define PTR2LONG(P) (((char *) (P))-(char *) 0) +#define LONG2PTR(L) (((char *) 0) + (L)) + +/* Declare some functions... */ + +static int +objc_read_class (struct objc_typed_stream *stream, Class *class); + +int objc_sizeof_type (const char *type); + +static int +objc_write_use_common (struct objc_typed_stream *stream, unsigned long key); + +static int +objc_write_register_common (struct objc_typed_stream *stream, + unsigned long key); + +static int +objc_write_class (struct objc_typed_stream *stream, + struct objc_class *class); + +const char *objc_skip_type (const char *type); + +static void __objc_finish_write_root_object (struct objc_typed_stream *); +static void __objc_finish_read_root_object (struct objc_typed_stream *); + +static inline int +__objc_code_unsigned_char (unsigned char *buf, unsigned char val) +{ + if ((val&_B_VALUE) == val) + { + buf[0] = val|_B_SINT; + return 1; + } + else + { + buf[0] = _B_NINT|0x01; + buf[1] = val; + return 2; + } +} + +int +objc_write_unsigned_char (struct objc_typed_stream *stream, + unsigned char value) +{ + unsigned char buf[sizeof (unsigned char) + 1]; + int len = __objc_code_unsigned_char (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_char (unsigned char *buf, signed char val) +{ + if (val >= 0) + return __objc_code_unsigned_char (buf, val); + else + { + buf[0] = _B_NINT|_B_SIGN|0x01; + buf[1] = -val; + return 2; + } +} + +int +objc_write_char (struct objc_typed_stream *stream, signed char value) +{ + unsigned char buf[sizeof (char) + 1]; + int len = __objc_code_char (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_unsigned_short (unsigned char *buf, unsigned short val) +{ + if ((val&_B_VALUE) == val) + { + buf[0] = val|_B_SINT; + return 1; + } + else + { + int c, b; + + buf[0] = _B_NINT; + + for (c = sizeof (short); c != 0; c -= 1) + if (((val >> (8*(c - 1)))%0x100) != 0) + break; + + buf[0] |= c; + + for (b = 1; c != 0; c--, b++) + { + buf[b] = (val >> (8*(c - 1)))%0x100; + } + + return b; + } +} + +int +objc_write_unsigned_short (struct objc_typed_stream *stream, + unsigned short value) +{ + unsigned char buf[sizeof (unsigned short) + 1]; + int len = __objc_code_unsigned_short (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_short (unsigned char *buf, short val) +{ + int sign = (val < 0); + int size = __objc_code_unsigned_short (buf, sign ? -val : val); + if (sign) + buf[0] |= _B_SIGN; + return size; +} + +int +objc_write_short (struct objc_typed_stream *stream, short value) +{ + unsigned char buf[sizeof (short) + 1]; + int len = __objc_code_short (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + + +static inline int +__objc_code_unsigned_int (unsigned char *buf, unsigned int val) +{ + if ((val&_B_VALUE) == val) + { + buf[0] = val|_B_SINT; + return 1; + } + else + { + int c, b; + + buf[0] = _B_NINT; + + for (c = sizeof (int); c != 0; c -= 1) + if (((val >> (8*(c - 1)))%0x100) != 0) + break; + + buf[0] |= c; + + for (b = 1; c != 0; c--, b++) + { + buf[b] = (val >> (8*(c-1)))%0x100; + } + + return b; + } +} + +int +objc_write_unsigned_int (struct objc_typed_stream *stream, unsigned int value) +{ + unsigned char buf[sizeof (unsigned int) + 1]; + int len = __objc_code_unsigned_int (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_int (unsigned char *buf, int val) +{ + int sign = (val < 0); + int size = __objc_code_unsigned_int (buf, sign ? -val : val); + if (sign) + buf[0] |= _B_SIGN; + return size; +} + +int +objc_write_int (struct objc_typed_stream *stream, int value) +{ + unsigned char buf[sizeof (int) + 1]; + int len = __objc_code_int (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_unsigned_long (unsigned char *buf, unsigned long val) +{ + if ((val&_B_VALUE) == val) + { + buf[0] = val|_B_SINT; + return 1; + } + else + { + int c, b; + + buf[0] = _B_NINT; + + for (c = sizeof (long); c != 0; c -= 1) + if (((val >> (8*(c - 1)))%0x100) != 0) + break; + + buf[0] |= c; + + for (b = 1; c != 0; c--, b++) + { + buf[b] = (val >> (8*(c - 1)))%0x100; + } + + return b; + } +} + +int +objc_write_unsigned_long (struct objc_typed_stream *stream, + unsigned long value) +{ + unsigned char buf[sizeof (unsigned long) + 1]; + int len = __objc_code_unsigned_long (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + +static inline int +__objc_code_long (unsigned char *buf, long val) +{ + int sign = (val < 0); + int size = __objc_code_unsigned_long (buf, sign ? -val : val); + if (sign) + buf[0] |= _B_SIGN; + return size; +} + +int +objc_write_long (struct objc_typed_stream *stream, long value) +{ + unsigned char buf[sizeof (long) + 1]; + int len = __objc_code_long (buf, value); + return (*stream->write) (stream->physical, (char*)buf, len); +} + + +int +objc_write_string (struct objc_typed_stream *stream, + const unsigned char *string, unsigned int nbytes) +{ + unsigned char buf[sizeof (unsigned int) + 1]; + int len = __objc_code_unsigned_int (buf, nbytes); + + if ((buf[0]&_B_CODE) == _B_SINT) + buf[0] = (buf[0]&_B_VALUE)|_B_SSTR; + + else /* _B_NINT */ + buf[0] = (buf[0]&_B_VALUE)|_B_NSTR; + + if ((*stream->write) (stream->physical, (char*)buf, len) != 0) + return (*stream->write) (stream->physical, (char*)string, nbytes); + else + return 0; +} + +int +objc_write_string_atomic (struct objc_typed_stream *stream, + unsigned char *string, unsigned int nbytes) +{ + unsigned long key; + if ((key = PTR2LONG(objc_hash_value_for_key (stream->stream_table, string)))) + return objc_write_use_common (stream, key); + else + { + int length; + objc_hash_add (&stream->stream_table, + LONG2PTR(key=PTR2LONG(string)), string); + if ((length = objc_write_register_common (stream, key))) + return objc_write_string (stream, string, nbytes); + return length; + } +} + +static int +objc_write_register_common (struct objc_typed_stream *stream, + unsigned long key) +{ + unsigned char buf[sizeof (unsigned long)+2]; + int len = __objc_code_unsigned_long (buf + 1, key); + if (len == 1) + { + buf[0] = _B_RCOMM|0x01; + buf[1] &= _B_VALUE; + return (*stream->write) (stream->physical, (char*)buf, len + 1); + } + else + { + buf[1] = (buf[1]&_B_VALUE)|_B_RCOMM; + return (*stream->write) (stream->physical, (char*)buf + 1, len); + } +} + +static int +objc_write_use_common (struct objc_typed_stream *stream, unsigned long key) +{ + unsigned char buf[sizeof (unsigned long)+2]; + int len = __objc_code_unsigned_long (buf + 1, key); + if (len == 1) + { + buf[0] = _B_UCOMM|0x01; + buf[1] &= _B_VALUE; + return (*stream->write) (stream->physical, (char*)buf, 2); + } + else + { + buf[1] = (buf[1]&_B_VALUE)|_B_UCOMM; + return (*stream->write) (stream->physical, (char*)buf + 1, len); + } +} + +static inline int +__objc_write_extension (struct objc_typed_stream *stream, unsigned char code) +{ + if (code <= _B_VALUE) + { + unsigned char buf = code|_B_EXT; + return (*stream->write) (stream->physical, (char*)&buf, 1); + } + else + { + objc_error (nil, OBJC_ERR_BAD_OPCODE, + "__objc_write_extension: bad opcode %c\n", code); + return -1; + } +} + +inline int +__objc_write_object (struct objc_typed_stream *stream, id object) +{ + unsigned char buf = '\0'; + SEL write_sel = sel_get_any_uid ("write:"); + if (object) + { + __objc_write_extension (stream, _BX_OBJECT); + objc_write_class (stream, object->class_pointer); + (*objc_msg_lookup (object, write_sel)) (object, write_sel, stream); + return (*stream->write) (stream->physical, (char*)&buf, 1); + } + else + return objc_write_use_common (stream, 0); +} + +int +objc_write_object_reference (struct objc_typed_stream *stream, id object) +{ + unsigned long key; + if ((key = PTR2LONG(objc_hash_value_for_key (stream->object_table, object)))) + return objc_write_use_common (stream, key); + + __objc_write_extension (stream, _BX_OBJREF); + return objc_write_unsigned_long (stream, PTR2LONG (object)); +} + +int +objc_write_root_object (struct objc_typed_stream *stream, id object) +{ + int len = 0; + if (stream->writing_root_p) + objc_error (nil, OBJC_ERR_RECURSE_ROOT, + "objc_write_root_object called recursively"); + else + { + stream->writing_root_p = 1; + __objc_write_extension (stream, _BX_OBJROOT); + if ((len = objc_write_object (stream, object))) + __objc_finish_write_root_object (stream); + stream->writing_root_p = 0; + } + return len; +} + +int +objc_write_object (struct objc_typed_stream *stream, id object) +{ + unsigned long key; + if ((key = PTR2LONG(objc_hash_value_for_key (stream->object_table, object)))) + return objc_write_use_common (stream, key); + + else if (object == nil) + return objc_write_use_common (stream, 0); + + else + { + int length; + objc_hash_add (&stream->object_table, + LONG2PTR(key=PTR2LONG(object)), object); + if ((length = objc_write_register_common (stream, key))) + return __objc_write_object (stream, object); + return length; + } +} + +inline int +__objc_write_class (struct objc_typed_stream *stream, struct objc_class *class) +{ + __objc_write_extension (stream, _BX_CLASS); + objc_write_string_atomic (stream, (unsigned char *) class->name, + strlen ((char *) class->name)); + return objc_write_unsigned_long (stream, class->version); +} + + +static int +objc_write_class (struct objc_typed_stream *stream, + struct objc_class *class) +{ + unsigned long key; + if ((key = PTR2LONG(objc_hash_value_for_key (stream->stream_table, class)))) + return objc_write_use_common (stream, key); + else + { + int length; + objc_hash_add (&stream->stream_table, + LONG2PTR(key = PTR2LONG(class)), class); + if ((length = objc_write_register_common (stream, key))) + return __objc_write_class (stream, class); + return length; + } +} + + +inline int +__objc_write_selector (struct objc_typed_stream *stream, SEL selector) +{ + const char *sel_name; + __objc_write_extension (stream, _BX_SEL); + /* to handle NULL selectors */ + if ((SEL)0 == selector) + return objc_write_string (stream, (unsigned char*)"", 0); + sel_name = sel_get_name (selector); + return objc_write_string (stream, (unsigned char*)sel_name, strlen ((char*)sel_name)); +} + +int +objc_write_selector (struct objc_typed_stream *stream, SEL selector) +{ + const char *sel_name; + unsigned long key; + + /* to handle NULL selectors */ + if ((SEL)0 == selector) + return __objc_write_selector (stream, selector); + + sel_name = sel_get_name (selector); + if ((key = PTR2LONG(objc_hash_value_for_key (stream->stream_table, + sel_name)))) + return objc_write_use_common (stream, key); + else + { + int length; + objc_hash_add (&stream->stream_table, + LONG2PTR(key = PTR2LONG(sel_name)), (char *) sel_name); + if ((length = objc_write_register_common (stream, key))) + return __objc_write_selector (stream, selector); + return length; + } +} + + + +/* +** Read operations +*/ + +inline int +objc_read_char (struct objc_typed_stream *stream, char *val) +{ + unsigned char buf; + int len; + len = (*stream->read) (stream->physical, (char*)&buf, 1); + if (len != 0) + { + if ((buf & _B_CODE) == _B_SINT) + (*val) = (buf & _B_VALUE); + + else if ((buf & _B_NUMBER) == 1) + { + len = (*stream->read) (stream->physical, val, 1); + if (buf&_B_SIGN) + (*val) = -1 * (*val); + } + + else + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected 8bit signed int, got %dbit int", + (int) (buf&_B_NUMBER)*8); + } + return len; +} + + +inline int +objc_read_unsigned_char (struct objc_typed_stream *stream, unsigned char *val) +{ + unsigned char buf; + int len; + if ((len = (*stream->read) (stream->physical, (char*)&buf, 1))) + { + if ((buf & _B_CODE) == _B_SINT) + (*val) = (buf & _B_VALUE); + + else if ((buf & _B_NUMBER) == 1) + len = (*stream->read) (stream->physical, (char*)val, 1); + + else + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected 8bit unsigned int, got %dbit int", + (int) (buf&_B_NUMBER)*8); + } + return len; +} + +inline int +objc_read_short (struct objc_typed_stream *stream, short *value) +{ + unsigned char buf[sizeof (short) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + { + int pos = 1; + int nbytes = buf[0] & _B_NUMBER; + if (nbytes > (int) sizeof (short)) + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected short, got bigger (%dbits)", nbytes*8); + len = (*stream->read) (stream->physical, (char*)buf + 1, nbytes); + (*value) = 0; + while (pos <= nbytes) + (*value) = ((*value)*0x100) + buf[pos++]; + if (buf[0] & _B_SIGN) + (*value) = -(*value); + } + } + return len; +} + +inline int +objc_read_unsigned_short (struct objc_typed_stream *stream, + unsigned short *value) +{ + unsigned char buf[sizeof (unsigned short) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + { + int pos = 1; + int nbytes = buf[0] & _B_NUMBER; + if (nbytes > (int) sizeof (short)) + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected short, got int or bigger"); + len = (*stream->read) (stream->physical, (char*)buf + 1, nbytes); + (*value) = 0; + while (pos <= nbytes) + (*value) = ((*value)*0x100) + buf[pos++]; + } + } + return len; +} + + +inline int +objc_read_int (struct objc_typed_stream *stream, int *value) +{ + unsigned char buf[sizeof (int) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + { + int pos = 1; + int nbytes = buf[0] & _B_NUMBER; + if (nbytes > (int) sizeof (int)) + objc_error (nil, OBJC_ERR_BAD_DATA, "expected int, got bigger"); + len = (*stream->read) (stream->physical, (char*)buf + 1, nbytes); + (*value) = 0; + while (pos <= nbytes) + (*value) = ((*value)*0x100) + buf[pos++]; + if (buf[0] & _B_SIGN) + (*value) = -(*value); + } + } + return len; +} + +inline int +objc_read_long (struct objc_typed_stream *stream, long *value) +{ + unsigned char buf[sizeof (long) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + { + int pos = 1; + int nbytes = buf[0] & _B_NUMBER; + if (nbytes > (int) sizeof (long)) + objc_error (nil, OBJC_ERR_BAD_DATA, "expected long, got bigger"); + len = (*stream->read) (stream->physical, (char*)buf + 1, nbytes); + (*value) = 0; + while (pos <= nbytes) + (*value) = ((*value)*0x100) + buf[pos++]; + if (buf[0] & _B_SIGN) + (*value) = -(*value); + } + } + return len; +} + +inline int +__objc_read_nbyte_uint (struct objc_typed_stream *stream, + unsigned int nbytes, unsigned int *val) +{ + int len; + unsigned int pos = 0; + unsigned char buf[sizeof (unsigned int) + 1]; + + if (nbytes > sizeof (int)) + objc_error (nil, OBJC_ERR_BAD_DATA, "expected int, got bigger"); + + len = (*stream->read) (stream->physical, (char*)buf, nbytes); + (*val) = 0; + while (pos < nbytes) + (*val) = ((*val)*0x100) + buf[pos++]; + return len; +} + + +inline int +objc_read_unsigned_int (struct objc_typed_stream *stream, + unsigned int *value) +{ + unsigned char buf[sizeof (unsigned int) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + len = __objc_read_nbyte_uint (stream, (buf[0] & _B_VALUE), value); + + } + return len; +} + +int +__objc_read_nbyte_ulong (struct objc_typed_stream *stream, + unsigned int nbytes, unsigned long *val) +{ + int len; + unsigned int pos = 0; + unsigned char buf[sizeof (unsigned long) + 1]; + + if (nbytes > sizeof (long)) + objc_error (nil, OBJC_ERR_BAD_DATA, "expected long, got bigger"); + + len = (*stream->read) (stream->physical, (char*)buf, nbytes); + (*val) = 0; + while (pos < nbytes) + (*val) = ((*val)*0x100) + buf[pos++]; + return len; +} + + +inline int +objc_read_unsigned_long (struct objc_typed_stream *stream, + unsigned long *value) +{ + unsigned char buf[sizeof (unsigned long) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + if ((buf[0] & _B_CODE) == _B_SINT) + (*value) = (buf[0] & _B_VALUE); + + else + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), value); + + } + return len; +} + +inline int +objc_read_string (struct objc_typed_stream *stream, + char **string) +{ + unsigned char buf[sizeof (unsigned int) + 1]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + unsigned long key = 0; + + if ((buf[0]&_B_CODE) == _B_RCOMM) /* register following */ + { + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + len = (*stream->read) (stream->physical, (char*)buf, 1); + } + + switch (buf[0]&_B_CODE) { + case _B_SSTR: + { + int length = buf[0]&_B_VALUE; + (*string) = (char*)objc_malloc (length + 1); + if (key) + objc_hash_add (&stream->stream_table, LONG2PTR(key), *string); + len = (*stream->read) (stream->physical, *string, length); + (*string)[length] = '\0'; + } + break; + + case _B_UCOMM: + { + char *tmp; + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + tmp = objc_hash_value_for_key (stream->stream_table, LONG2PTR (key)); + *string = objc_malloc (strlen (tmp) + 1); + strcpy (*string, tmp); + } + break; + + case _B_NSTR: + { + unsigned int nbytes = buf[0]&_B_VALUE; + len = __objc_read_nbyte_uint (stream, nbytes, &nbytes); + if (len) { + (*string) = (char*)objc_malloc (nbytes + 1); + if (key) + objc_hash_add (&stream->stream_table, LONG2PTR(key), *string); + len = (*stream->read) (stream->physical, *string, nbytes); + (*string)[nbytes] = '\0'; + } + } + break; + + default: + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected string, got opcode %c\n", (buf[0]&_B_CODE)); + } + } + + return len; +} + + +int +objc_read_object (struct objc_typed_stream *stream, id *object) +{ + unsigned char buf[sizeof (unsigned int)]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + SEL read_sel = sel_get_any_uid ("read:"); + unsigned long key = 0; + + if ((buf[0]&_B_CODE) == _B_RCOMM) /* register common */ + { + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + len = (*stream->read) (stream->physical, (char*)buf, 1); + } + + if (buf[0] == (_B_EXT | _BX_OBJECT)) + { + Class class; + + /* get class */ + len = objc_read_class (stream, &class); + + /* create instance */ + (*object) = class_create_instance (class); + + /* register? */ + if (key) + objc_hash_add (&stream->object_table, LONG2PTR(key), *object); + + /* send -read: */ + if (__objc_responds_to (*object, read_sel)) + (*get_imp (class, read_sel)) (*object, read_sel, stream); + + /* check null-byte */ + len = (*stream->read) (stream->physical, (char*)buf, 1); + if (buf[0] != '\0') + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected null-byte, got opcode %c", buf[0]); + } + + else if ((buf[0]&_B_CODE) == _B_UCOMM) + { + if (key) + objc_error (nil, OBJC_ERR_BAD_KEY, "cannot register use upcode..."); + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + (*object) = objc_hash_value_for_key (stream->object_table, + LONG2PTR(key)); + } + + else if (buf[0] == (_B_EXT | _BX_OBJREF)) /* a forward reference */ + { + struct objc_list *other; + len = objc_read_unsigned_long (stream, &key); + other + = (struct objc_list *) objc_hash_value_for_key (stream->object_refs, + LONG2PTR(key)); + objc_hash_add (&stream->object_refs, LONG2PTR(key), + (void *)list_cons (object, other)); + } + + else if (buf[0] == (_B_EXT | _BX_OBJROOT)) /* a root object */ + { + if (key) + objc_error (nil, OBJC_ERR_BAD_KEY, + "cannot register root object..."); + len = objc_read_object (stream, object); + __objc_finish_read_root_object (stream); + } + + else + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected object, got opcode %c", buf[0]); + } + return len; +} + +static int +objc_read_class (struct objc_typed_stream *stream, Class *class) +{ + unsigned char buf[sizeof (unsigned int)]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + unsigned long key = 0; + + if ((buf[0]&_B_CODE) == _B_RCOMM) /* register following */ + { + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + len = (*stream->read) (stream->physical, (char*)buf, 1); + } + + if (buf[0] == (_B_EXT | _BX_CLASS)) + { + char temp[1] = ""; + char *class_name = temp; + unsigned long version; + + /* get class */ + len = objc_read_string (stream, &class_name); + (*class) = objc_get_class (class_name); + objc_free (class_name); + + /* register */ + if (key) + objc_hash_add (&stream->stream_table, LONG2PTR(key), *class); + + objc_read_unsigned_long (stream, &version); + objc_hash_add (&stream->class_table, + (*class)->name, (void *)version); + } + + else if ((buf[0]&_B_CODE) == _B_UCOMM) + { + if (key) + objc_error (nil, OBJC_ERR_BAD_KEY, "cannot register use upcode..."); + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + *class = objc_hash_value_for_key (stream->stream_table, + LONG2PTR(key)); + if (! *class) + objc_error (nil, OBJC_ERR_BAD_CLASS, + "cannot find class for key %lu", key); + } + + else + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected class, got opcode %c", buf[0]); + } + return len; +} + +int +objc_read_selector (struct objc_typed_stream *stream, SEL* selector) +{ + unsigned char buf[sizeof (unsigned int)]; + int len; + if ((len = (*stream->read) (stream->physical, (char*)buf, 1))) + { + unsigned long key = 0; + + if ((buf[0]&_B_CODE) == _B_RCOMM) /* register following */ + { + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + len = (*stream->read) (stream->physical, (char*)buf, 1); + } + + if (buf[0] == (_B_EXT|_BX_SEL)) /* selector! */ + { + char temp[1] = ""; + char *selector_name = temp; + + /* get selector */ + len = objc_read_string (stream, &selector_name); + /* To handle NULL selectors */ + if (0 == strlen (selector_name)) + { + (*selector) = (SEL)0; + return 0; + } + else + (*selector) = sel_get_any_uid (selector_name); + objc_free (selector_name); + + /* register */ + if (key) + objc_hash_add (&stream->stream_table, + LONG2PTR(key), (void *) *selector); + } + + else if ((buf[0]&_B_CODE) == _B_UCOMM) + { + if (key) + objc_error (nil, OBJC_ERR_BAD_KEY, "cannot register use upcode..."); + len = __objc_read_nbyte_ulong (stream, (buf[0] & _B_VALUE), &key); + (*selector) = objc_hash_value_for_key (stream->stream_table, + LONG2PTR(key)); + } + + else + objc_error (nil, OBJC_ERR_BAD_DATA, + "expected selector, got opcode %c", buf[0]); + } + return len; +} + +/* +** USER LEVEL FUNCTIONS +*/ + +/* +** Write one object, encoded in TYPE and pointed to by DATA to the +** typed stream STREAM. +*/ + +int +objc_write_type (TypedStream *stream, const char *type, const void *data) +{ + switch (*type) { + case _C_ID: + return objc_write_object (stream, *(id *) data); + break; + + case _C_CLASS: + return objc_write_class (stream, *(Class *) data); + break; + + case _C_SEL: + return objc_write_selector (stream, *(SEL *) data); + break; + + case _C_CHR: + return objc_write_char (stream, *(signed char *) data); + break; + + case _C_UCHR: + return objc_write_unsigned_char (stream, *(unsigned char *) data); + break; + + case _C_SHT: + return objc_write_short (stream, *(short *) data); + break; + + case _C_USHT: + return objc_write_unsigned_short (stream, *(unsigned short *) data); + break; + + case _C_INT: + return objc_write_int (stream, *(int *) data); + break; + + case _C_UINT: + return objc_write_unsigned_int (stream, *(unsigned int *) data); + break; + + case _C_LNG: + return objc_write_long (stream, *(long *) data); + break; + + case _C_ULNG: + return objc_write_unsigned_long (stream, *(unsigned long *) data); + break; + + case _C_CHARPTR: + return objc_write_string (stream, + *(unsigned char **) data, strlen (*(char **) data)); + break; + + case _C_ATOM: + return objc_write_string_atomic (stream, *(unsigned char **) data, + strlen (*(char **) data)); + break; + + case _C_ARY_B: + { + int len = atoi (type + 1); + while (isdigit ((unsigned char) *++type)) + ; + return objc_write_array (stream, type, len, data); + } + break; + + case _C_STRUCT_B: + { + int acc_size = 0; + int align; + while (*type != _C_STRUCT_E && *type++ != '=') + ; /* skip "<name>=" */ + while (*type != _C_STRUCT_E) + { + align = objc_alignof_type (type); /* padd to alignment */ + acc_size = ROUND (acc_size, align); + objc_write_type (stream, type, ((char *) data) + acc_size); + acc_size += objc_sizeof_type (type); /* add component size */ + type = objc_skip_typespec (type); /* skip component */ + } + return 1; + } + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, + "objc_write_type: cannot parse typespec: %s\n", type); + return 0; + } + } +} + +/* +** Read one object, encoded in TYPE and pointed to by DATA to the +** typed stream STREAM. DATA specifies the address of the types to +** read. Expected type is checked against the type actually present +** on the stream. +*/ + +int +objc_read_type(TypedStream *stream, const char *type, void *data) +{ + char c; + switch (c = *type) { + case _C_ID: + return objc_read_object (stream, (id*)data); + break; + + case _C_CLASS: + return objc_read_class (stream, (Class*)data); + break; + + case _C_SEL: + return objc_read_selector (stream, (SEL*)data); + break; + + case _C_CHR: + return objc_read_char (stream, (char*)data); + break; + + case _C_UCHR: + return objc_read_unsigned_char (stream, (unsigned char*)data); + break; + + case _C_SHT: + return objc_read_short (stream, (short*)data); + break; + + case _C_USHT: + return objc_read_unsigned_short (stream, (unsigned short*)data); + break; + + case _C_INT: + return objc_read_int (stream, (int*)data); + break; + + case _C_UINT: + return objc_read_unsigned_int (stream, (unsigned int*)data); + break; + + case _C_LNG: + return objc_read_long (stream, (long*)data); + break; + + case _C_ULNG: + return objc_read_unsigned_long (stream, (unsigned long*)data); + break; + + case _C_CHARPTR: + case _C_ATOM: + return objc_read_string (stream, (char**)data); + break; + + case _C_ARY_B: + { + int len = atoi (type + 1); + while (isdigit ((unsigned char) *++type)) + ; + return objc_read_array (stream, type, len, data); + } + break; + + case _C_STRUCT_B: + { + int acc_size = 0; + int align; + while (*type != _C_STRUCT_E && *type++ != '=') + ; /* skip "<name>=" */ + while (*type != _C_STRUCT_E) + { + align = objc_alignof_type (type); /* padd to alignment */ + acc_size = ROUND (acc_size, align); + objc_read_type (stream, type, ((char*)data)+acc_size); + acc_size += objc_sizeof_type (type); /* add component size */ + type = objc_skip_typespec (type); /* skip component */ + } + return 1; + } + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, + "objc_read_type: cannot parse typespec: %s\n", type); + return 0; + } + } +} + +/* +** Write the object specified by the template TYPE to STREAM. Last +** arguments specify addresses of values to be written. It might +** seem surprising to specify values by address, but this is extremely +** convenient for copy-paste with objc_read_types calls. A more +** down-to-the-earth cause for this passing of addresses is that values +** of arbitrary size is not well supported in ANSI C for functions with +** variable number of arguments. +*/ + +int +objc_write_types (TypedStream *stream, const char *type, ...) +{ + va_list args; + const char *c; + int res = 0; + + va_start(args, type); + + for (c = type; *c; c = objc_skip_typespec (c)) + { + switch (*c) { + case _C_ID: + res = objc_write_object (stream, *va_arg (args, id*)); + break; + + case _C_CLASS: + res = objc_write_class (stream, *va_arg (args, Class*)); + break; + + case _C_SEL: + res = objc_write_selector (stream, *va_arg (args, SEL*)); + break; + + case _C_CHR: + res = objc_write_char (stream, *va_arg (args, char*)); + break; + + case _C_UCHR: + res = objc_write_unsigned_char (stream, + *va_arg (args, unsigned char*)); + break; + + case _C_SHT: + res = objc_write_short (stream, *va_arg (args, short*)); + break; + + case _C_USHT: + res = objc_write_unsigned_short (stream, + *va_arg (args, unsigned short*)); + break; + + case _C_INT: + res = objc_write_int(stream, *va_arg (args, int*)); + break; + + case _C_UINT: + res = objc_write_unsigned_int(stream, *va_arg (args, unsigned int*)); + break; + + case _C_LNG: + res = objc_write_long(stream, *va_arg (args, long*)); + break; + + case _C_ULNG: + res = objc_write_unsigned_long(stream, *va_arg (args, unsigned long*)); + break; + + case _C_CHARPTR: + { + unsigned char **str = va_arg (args, unsigned char **); + res = objc_write_string (stream, *str, strlen ((char*)*str)); + } + break; + + case _C_ATOM: + { + unsigned char **str = va_arg (args, unsigned char **); + res = objc_write_string_atomic (stream, *str, strlen ((char*)*str)); + } + break; + + case _C_ARY_B: + { + int len = atoi (c + 1); + const char *t = c; + while (isdigit ((unsigned char) *++t)) + ; + res = objc_write_array (stream, t, len, va_arg (args, void *)); + t = objc_skip_typespec (t); + if (*t != _C_ARY_E) + objc_error (nil, OBJC_ERR_BAD_TYPE, "expected `]', got: %s", t); + } + break; + + default: + objc_error (nil, OBJC_ERR_BAD_TYPE, + "objc_write_types: cannot parse typespec: %s\n", type); + } + } + va_end(args); + return res; +} + + +/* +** Last arguments specify addresses of values to be read. Expected +** type is checked against the type actually present on the stream. +*/ + +int +objc_read_types(TypedStream *stream, const char *type, ...) +{ + va_list args; + const char *c; + int res = 0; + + va_start (args, type); + + for (c = type; *c; c = objc_skip_typespec(c)) + { + switch (*c) { + case _C_ID: + res = objc_read_object(stream, va_arg (args, id*)); + break; + + case _C_CLASS: + res = objc_read_class(stream, va_arg (args, Class*)); + break; + + case _C_SEL: + res = objc_read_selector(stream, va_arg (args, SEL*)); + break; + + case _C_CHR: + res = objc_read_char(stream, va_arg (args, char*)); + break; + + case _C_UCHR: + res = objc_read_unsigned_char(stream, va_arg (args, unsigned char*)); + break; + + case _C_SHT: + res = objc_read_short(stream, va_arg (args, short*)); + break; + + case _C_USHT: + res = objc_read_unsigned_short(stream, va_arg (args, unsigned short*)); + break; + + case _C_INT: + res = objc_read_int(stream, va_arg (args, int*)); + break; + + case _C_UINT: + res = objc_read_unsigned_int(stream, va_arg (args, unsigned int*)); + break; + + case _C_LNG: + res = objc_read_long(stream, va_arg (args, long*)); + break; + + case _C_ULNG: + res = objc_read_unsigned_long(stream, va_arg (args, unsigned long*)); + break; + + case _C_CHARPTR: + case _C_ATOM: + { + char **str = va_arg (args, char **); + res = objc_read_string (stream, str); + } + break; + + case _C_ARY_B: + { + int len = atoi (c + 1); + const char *t = c; + while (isdigit ((unsigned char) *++t)) + ; + res = objc_read_array (stream, t, len, va_arg (args, void *)); + t = objc_skip_typespec (t); + if (*t != _C_ARY_E) + objc_error (nil, OBJC_ERR_BAD_TYPE, "expected `]', got: %s", t); + } + break; + + default: + objc_error (nil, OBJC_ERR_BAD_TYPE, + "objc_read_types: cannot parse typespec: %s\n", type); + } + } + va_end (args); + return res; +} + +/* +** Write an array of COUNT elements of TYPE from the memory address DATA. +** This is equivalent of objc_write_type (stream, "[N<type>]", data) +*/ + +int +objc_write_array (TypedStream *stream, const char *type, + int count, const void *data) +{ + int off = objc_sizeof_type(type); + const char *where = data; + + while (count-- > 0) + { + objc_write_type(stream, type, where); + where += off; + } + return 1; +} + +/* +** Read an array of COUNT elements of TYPE into the memory address +** DATA. The memory pointed to by data is supposed to be allocated +** by the callee. This is equivalent of +** objc_read_type (stream, "[N<type>]", data) +*/ + +int +objc_read_array (TypedStream *stream, const char *type, + int count, void *data) +{ + int off = objc_sizeof_type(type); + char *where = (char*)data; + + while (count-- > 0) + { + objc_read_type(stream, type, where); + where += off; + } + return 1; +} + +static int +__objc_fread (FILE *file, char *data, int len) +{ + return fread(data, len, 1, file); +} + +static int +__objc_fwrite (FILE *file, char *data, int len) +{ + return fwrite(data, len, 1, file); +} + +static int +__objc_feof (FILE *file) +{ + return feof(file); +} + +static int +__objc_no_write (FILE *file __attribute__ ((__unused__)), + const char *data __attribute__ ((__unused__)), + int len __attribute__ ((__unused__))) +{ + objc_error (nil, OBJC_ERR_NO_WRITE, "TypedStream not open for writing"); + return 0; +} + +static int +__objc_no_read (FILE *file __attribute__ ((__unused__)), + const char *data __attribute__ ((__unused__)), + int len __attribute__ ((__unused__))) +{ + objc_error (nil, OBJC_ERR_NO_READ, "TypedStream not open for reading"); + return 0; +} + +static int +__objc_read_typed_stream_signature (TypedStream *stream) +{ + char buffer[80]; + int pos = 0; + do + (*stream->read) (stream->physical, buffer+pos, 1); + while (buffer[pos++] != '\0') + ; + sscanf (buffer, "GNU TypedStream %d", &stream->version); + if (stream->version != OBJC_TYPED_STREAM_VERSION) + objc_error (nil, OBJC_ERR_STREAM_VERSION, + "cannot handle TypedStream version %d", stream->version); + return 1; +} + +static int +__objc_write_typed_stream_signature (TypedStream *stream) +{ + char buffer[80]; + sprintf(buffer, "GNU TypedStream %d", OBJC_TYPED_STREAM_VERSION); + stream->version = OBJC_TYPED_STREAM_VERSION; + (*stream->write) (stream->physical, buffer, strlen (buffer) + 1); + return 1; +} + +static void __objc_finish_write_root_object(struct objc_typed_stream *stream) +{ + objc_hash_delete (stream->object_table); + stream->object_table = objc_hash_new (64, + (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); +} + +static void __objc_finish_read_root_object(struct objc_typed_stream *stream) +{ + node_ptr node; + SEL awake_sel = sel_get_any_uid ("awake"); + cache_ptr free_list = objc_hash_new (64, + (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); + + /* resolve object forward references */ + for (node = objc_hash_next (stream->object_refs, NULL); node; + node = objc_hash_next (stream->object_refs, node)) + { + struct objc_list *reflist = node->value; + const void *key = node->key; + id object = objc_hash_value_for_key (stream->object_table, key); + while (reflist) + { + *((id*) reflist->head) = object; + if (objc_hash_value_for_key (free_list,reflist) == NULL) + objc_hash_add (&free_list,reflist,reflist); + + reflist = reflist->tail; + } + } + + /* apply __objc_free to all objects stored in free_list */ + for (node = objc_hash_next (free_list, NULL); node; + node = objc_hash_next (free_list, node)) + objc_free ((void *) node->key); + + objc_hash_delete (free_list); + + /* empty object reference table */ + objc_hash_delete (stream->object_refs); + stream->object_refs = objc_hash_new (8, (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); + + /* call -awake for all objects read */ + if (awake_sel) + { + for (node = objc_hash_next (stream->object_table, NULL); node; + node = objc_hash_next (stream->object_table, node)) + { + id object = node->value; + if (__objc_responds_to (object, awake_sel)) + (*objc_msg_lookup (object, awake_sel)) (object, awake_sel); + } + } + + /* empty object table */ + objc_hash_delete (stream->object_table); + stream->object_table = objc_hash_new(64, + (hash_func_type)objc_hash_ptr, + (compare_func_type)objc_compare_ptrs); +} + +/* +** Open the stream PHYSICAL in MODE +*/ + +TypedStream * +objc_open_typed_stream (FILE *physical, int mode) +{ + TypedStream *s = (TypedStream *) objc_malloc (sizeof (TypedStream)); + + s->mode = mode; + s->physical = physical; + s->stream_table = objc_hash_new (64, + (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); + s->object_table = objc_hash_new (64, + (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); + s->eof = (objc_typed_eof_func) __objc_feof; + s->flush = (objc_typed_flush_func) fflush; + s->writing_root_p = 0; + if (mode == OBJC_READONLY) + { + s->class_table + = objc_hash_new (8, (hash_func_type) objc_hash_string, + (compare_func_type) objc_compare_strings); + s->object_refs = objc_hash_new (8, (hash_func_type) objc_hash_ptr, + (compare_func_type) objc_compare_ptrs); + s->read = (objc_typed_read_func) __objc_fread; + s->write = (objc_typed_write_func) __objc_no_write; + __objc_read_typed_stream_signature (s); + } + else if (mode == OBJC_WRITEONLY) + { + s->class_table = 0; + s->object_refs = 0; + s->read = (objc_typed_read_func) __objc_no_read; + s->write = (objc_typed_write_func) __objc_fwrite; + __objc_write_typed_stream_signature (s); + } + else + { + objc_close_typed_stream (s); + return NULL; + } + s->type = OBJC_FILE_STREAM; + return s; +} + +/* +** Open the file named by FILE_NAME in MODE +*/ + +TypedStream* +objc_open_typed_stream_for_file (const char *file_name, int mode) +{ + FILE *file = NULL; + TypedStream *s; + + if (mode == OBJC_READONLY) + file = fopen (file_name, "r"); + else + file = fopen (file_name, "w"); + + if (file) + { + s = objc_open_typed_stream (file, mode); + if (s) + s->type |= OBJC_MANAGED_STREAM; + return s; + } + else + return NULL; +} + +/* +** Close STREAM freeing the structure it self. If it was opened with +** objc_open_typed_stream_for_file, the file will also be closed. +*/ + +void +objc_close_typed_stream (TypedStream *stream) +{ + if (stream->mode == OBJC_READONLY) + { + __objc_finish_read_root_object (stream); /* Just in case... */ + objc_hash_delete (stream->class_table); + objc_hash_delete (stream->object_refs); + } + + objc_hash_delete (stream->stream_table); + objc_hash_delete (stream->object_table); + + if (stream->type == (OBJC_MANAGED_STREAM | OBJC_FILE_STREAM)) + fclose ((FILE *)stream->physical); + + objc_free(stream); +} + +BOOL +objc_end_of_typed_stream (TypedStream *stream) +{ + return (*stream->eof) (stream->physical); +} + +void +objc_flush_typed_stream (TypedStream *stream) +{ + (*stream->flush) (stream->physical); +} + +long +objc_get_stream_class_version (TypedStream *stream, Class class) +{ + if (stream->class_table) + return PTR2LONG(objc_hash_value_for_key (stream->class_table, + class->name)); + else + return class_get_version (class); +} + diff --git a/contrib/libobjc/class.c b/contrib/libobjc/class.c new file mode 100644 index 0000000..4374852 --- /dev/null +++ b/contrib/libobjc/class.c @@ -0,0 +1,703 @@ +/* GNU Objective C Runtime class related functions + Copyright (C) 1993, 1995, 1996, 1997, 2001, 2002 + Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup and Dennis Glatting. + + Lock-free class table code designed and written from scratch by + Nicola Pero, 2001. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +/* + The code in this file critically affects class method invocation + speed. This long preamble comment explains why, and the issues + involved. + + + One of the traditional weaknesses of the GNU Objective-C runtime is + that class method invocations are slow. The reason is that when you + write + + array = [NSArray new]; + + this gets basically compiled into the equivalent of + + array = [(objc_get_class ("NSArray")) new]; + + objc_get_class returns the class pointer corresponding to the string + `NSArray'; and because of the lookup, the operation is more + complicated and slow than a simple instance method invocation. + + Most high performance Objective-C code (using the GNU Objc runtime) + I had the opportunity to read (or write) work around this problem by + caching the class pointer: + + Class arrayClass = [NSArray class]; + + ... later on ... + + array = [arrayClass new]; + array = [arrayClass new]; + array = [arrayClass new]; + + In this case, you always perform a class lookup (the first one), but + then all the [arrayClass new] methods run exactly as fast as an + instance method invocation. It helps if you have many class method + invocations to the same class. + + The long-term solution to this problem would be to modify the + compiler to output tables of class pointers corresponding to all the + class method invocations, and to add code to the runtime to update + these tables - that should in the end allow class method invocations + to perform precisely as fast as instance method invocations, because + no class lookup would be involved. I think the Apple Objective-C + runtime uses this technique. Doing this involves synchronized + modifications in the runtime and in the compiler. + + As a first medicine to the problem, I [NP] have redesigned and + rewritten the way the runtime is performing class lookup. This + doesn't give as much speed as the other (definitive) approach, but + at least a class method invocation now takes approximately 4.5 times + an instance method invocation on my machine (it would take approx 12 + times before the rewriting), which is a lot better. + + One of the main reason the new class lookup is so faster is because + I implemented it in a way that can safely run multithreaded without + using locks - a so-called `lock-free' data structure. The atomic + operation is pointer assignment. The reason why in this problem + lock-free data structures work so well is that you never remove + classes from the table - and the difficult thing with lock-free data + structures is freeing data when is removed from the structures. */ + +#include "objc/runtime.h" /* the kitchen sink */ +#include "objc/sarray.h" + +#include "objc/objc.h" +#include "objc/objc-api.h" +#include "objc/thr.h" + +/* We use a table which maps a class name to the corresponding class + * pointer. The first part of this file defines this table, and + * functions to do basic operations on the table. The second part of + * the file implements some higher level Objective-C functionality for + * classes by using the functions provided in the first part to manage + * the table. */ + +/** + ** Class Table Internals + **/ + +/* A node holding a class */ +typedef struct class_node +{ + struct class_node *next; /* Pointer to next entry on the list. + NULL indicates end of list. */ + + const char *name; /* The class name string */ + int length; /* The class name string length */ + Class pointer; /* The Class pointer */ + +} *class_node_ptr; + +/* A table containing classes is a class_node_ptr (pointing to the + first entry in the table - if it is NULL, then the table is + empty). */ + +/* We have 1024 tables. Each table contains all class names which + have the same hash (which is a number between 0 and 1023). To look + up a class_name, we compute its hash, and get the corresponding + table. Once we have the table, we simply compare strings directly + till we find the one which we want (using the length first). The + number of tables is quite big on purpose (a normal big application + has less than 1000 classes), so that you shouldn't normally get any + collisions, and get away with a single comparison (which we can't + avoid since we need to know that you have got the right thing). */ +#define CLASS_TABLE_SIZE 1024 +#define CLASS_TABLE_MASK 1023 + +static class_node_ptr class_table_array[CLASS_TABLE_SIZE]; + +/* The table writing mutex - we lock on writing to avoid conflicts + between different writers, but we read without locks. That is + possible because we assume pointer assignment to be an atomic + operation. */ +static objc_mutex_t __class_table_lock = NULL; + +/* CLASS_TABLE_HASH is how we compute the hash of a class name. It is + a macro - *not* a function - arguments *are* modified directly. + + INDEX should be a variable holding an int; + HASH should be a variable holding an int; + CLASS_NAME should be a variable holding a (char *) to the class_name. + + After the macro is executed, INDEX contains the length of the + string, and HASH the computed hash of the string; CLASS_NAME is + untouched. */ + +#define CLASS_TABLE_HASH(INDEX, HASH, CLASS_NAME) \ + HASH = 0; \ + for (INDEX = 0; CLASS_NAME[INDEX] != '\0'; INDEX++) \ + { \ + HASH = (HASH << 4) ^ (HASH >> 28) ^ CLASS_NAME[INDEX]; \ + } \ + \ + HASH = (HASH ^ (HASH >> 10) ^ (HASH >> 20)) & CLASS_TABLE_MASK; + +/* Setup the table. */ +static void +class_table_setup (void) +{ + /* Start - nothing in the table. */ + memset (class_table_array, 0, sizeof (class_node_ptr) * CLASS_TABLE_SIZE); + + /* The table writing mutex. */ + __class_table_lock = objc_mutex_allocate (); +} + + +/* Insert a class in the table (used when a new class is registered). */ +static void +class_table_insert (const char *class_name, Class class_pointer) +{ + int hash, length; + class_node_ptr new_node; + + /* Find out the class name's hash and length. */ + CLASS_TABLE_HASH (length, hash, class_name); + + /* Prepare the new node holding the class. */ + new_node = objc_malloc (sizeof (struct class_node)); + new_node->name = class_name; + new_node->length = length; + new_node->pointer = class_pointer; + + /* Lock the table for modifications. */ + objc_mutex_lock (__class_table_lock); + + /* Insert the new node in the table at the beginning of the table at + class_table_array[hash]. */ + new_node->next = class_table_array[hash]; + class_table_array[hash] = new_node; + + objc_mutex_unlock (__class_table_lock); +} + +/* Replace a class in the table (used only by poseAs:). */ +static void +class_table_replace (Class old_class_pointer, Class new_class_pointer) +{ + int hash; + class_node_ptr node; + + objc_mutex_lock (__class_table_lock); + + hash = 0; + node = class_table_array[hash]; + + while (hash < CLASS_TABLE_SIZE) + { + if (node == NULL) + { + hash++; + if (hash < CLASS_TABLE_SIZE) + { + node = class_table_array[hash]; + } + } + else + { + Class class1 = node->pointer; + + if (class1 == old_class_pointer) + { + node->pointer = new_class_pointer; + } + node = node->next; + } + } + + objc_mutex_unlock (__class_table_lock); +} + + +/* Get a class from the table. This does not need mutex protection. + Currently, this function is called each time you call a static + method, this is why it must be very fast. */ +static inline Class +class_table_get_safe (const char *class_name) +{ + class_node_ptr node; + int length, hash; + + /* Compute length and hash. */ + CLASS_TABLE_HASH (length, hash, class_name); + + node = class_table_array[hash]; + + if (node != NULL) + { + do + { + if (node->length == length) + { + /* Compare the class names. */ + int i; + + for (i = 0; i < length; i++) + { + if ((node->name)[i] != class_name[i]) + { + break; + } + } + + if (i == length) + { + /* They are equal! */ + return node->pointer; + } + } + } + while ((node = node->next) != NULL); + } + + return Nil; +} + +/* Enumerate over the class table. */ +struct class_table_enumerator +{ + int hash; + class_node_ptr node; +}; + + +static Class +class_table_next (struct class_table_enumerator **e) +{ + struct class_table_enumerator *enumerator = *e; + class_node_ptr next; + + if (enumerator == NULL) + { + *e = objc_malloc (sizeof (struct class_table_enumerator)); + enumerator = *e; + enumerator->hash = 0; + enumerator->node = NULL; + + next = class_table_array[enumerator->hash]; + } + else + { + next = enumerator->node->next; + } + + if (next != NULL) + { + enumerator->node = next; + return enumerator->node->pointer; + } + else + { + enumerator->hash++; + + while (enumerator->hash < CLASS_TABLE_SIZE) + { + next = class_table_array[enumerator->hash]; + if (next != NULL) + { + enumerator->node = next; + return enumerator->node->pointer; + } + enumerator->hash++; + } + + /* Ok - table finished - done. */ + objc_free (enumerator); + return Nil; + } +} + +#if 0 /* DEBUGGING FUNCTIONS */ +/* Debugging function - print the class table. */ +void +class_table_print (void) +{ + int i; + + for (i = 0; i < CLASS_TABLE_SIZE; i++) + { + class_node_ptr node; + + printf ("%d:\n", i); + node = class_table_array[i]; + + while (node != NULL) + { + printf ("\t%s\n", node->name); + node = node->next; + } + } +} + +/* Debugging function - print an histogram of number of classes in + function of hash key values. Useful to evaluate the hash function + in real cases. */ +void +class_table_print_histogram (void) +{ + int i, j; + int counter = 0; + + for (i = 0; i < CLASS_TABLE_SIZE; i++) + { + class_node_ptr node; + + node = class_table_array[i]; + + while (node != NULL) + { + counter++; + node = node->next; + } + if (((i + 1) % 50) == 0) + { + printf ("%4d:", i + 1); + for (j = 0; j < counter; j++) + { + printf ("X"); + } + printf ("\n"); + counter = 0; + } + } + printf ("%4d:", i + 1); + for (j = 0; j < counter; j++) + { + printf ("X"); + } + printf ("\n"); +} +#endif /* DEBUGGING FUNCTIONS */ + +/** + ** Objective-C runtime functions + **/ + +/* From now on, the only access to the class table data structure + should be via the class_table_* functions. */ + +/* This is a hook which is called by objc_get_class and + objc_lookup_class if the runtime is not able to find the class. + This may e.g. try to load in the class using dynamic loading. */ +Class (*_objc_lookup_class) (const char *name) = 0; /* !T:SAFE */ + + +/* True when class links has been resolved. */ +BOOL __objc_class_links_resolved = NO; /* !T:UNUSED */ + + +void +__objc_init_class_tables (void) +{ + /* Allocate the class hash table. */ + + if (__class_table_lock) + return; + + objc_mutex_lock (__objc_runtime_mutex); + + class_table_setup (); + + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* This function adds a class to the class hash table, and assigns the + class a number, unless it's already known. */ +void +__objc_add_class_to_hash (Class class) +{ + Class h_class; + + objc_mutex_lock (__objc_runtime_mutex); + + /* Make sure the table is there. */ + assert (__class_table_lock); + + /* Make sure it's not a meta class. */ + assert (CLS_ISCLASS (class)); + + /* Check to see if the class is already in the hash table. */ + h_class = class_table_get_safe (class->name); + if (! h_class) + { + /* The class isn't in the hash table. Add the class and assign a class + number. */ + static unsigned int class_number = 1; + + CLS_SETNUMBER (class, class_number); + CLS_SETNUMBER (class->class_pointer, class_number); + + ++class_number; + class_table_insert (class->name, class); + } + + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* Get the class object for the class named NAME. If NAME does not + identify a known class, the hook _objc_lookup_class is called. If + this fails, nil is returned. */ +Class +objc_lookup_class (const char *name) +{ + Class class; + + class = class_table_get_safe (name); + + if (class) + return class; + + if (_objc_lookup_class) + return (*_objc_lookup_class) (name); + else + return 0; +} + +/* Get the class object for the class named NAME. If NAME does not + identify a known class, the hook _objc_lookup_class is called. If + this fails, an error message is issued and the system aborts. */ +Class +objc_get_class (const char *name) +{ + Class class; + + class = class_table_get_safe (name); + + if (class) + return class; + + if (_objc_lookup_class) + class = (*_objc_lookup_class) (name); + + if (class) + return class; + + objc_error (nil, OBJC_ERR_BAD_CLASS, + "objc runtime: cannot find class %s\n", name); + return 0; +} + +MetaClass +objc_get_meta_class (const char *name) +{ + return objc_get_class (name)->class_pointer; +} + +/* This function provides a way to enumerate all the classes in the + executable. Pass *ENUM_STATE == NULL to start the enumeration. The + function will return 0 when there are no more classes. + For example: + id class; + void *es = NULL; + while ((class = objc_next_class (&es))) + ... do something with class; +*/ +Class +objc_next_class (void **enum_state) +{ + Class class; + + objc_mutex_lock (__objc_runtime_mutex); + + /* Make sure the table is there. */ + assert (__class_table_lock); + + class = class_table_next ((struct class_table_enumerator **) enum_state); + + objc_mutex_unlock (__objc_runtime_mutex); + + return class; +} + +/* Resolve super/subclass links for all classes. The only thing we + can be sure of is that the class_pointer for class objects point to + the right meta class objects. */ +void +__objc_resolve_class_links (void) +{ + struct class_table_enumerator *es = NULL; + Class object_class = objc_get_class ("Object"); + Class class1; + + assert (object_class); + + objc_mutex_lock (__objc_runtime_mutex); + + /* Assign subclass links. */ + while ((class1 = class_table_next (&es))) + { + /* Make sure we have what we think we have. */ + assert (CLS_ISCLASS (class1)); + assert (CLS_ISMETA (class1->class_pointer)); + + /* The class_pointer of all meta classes point to Object's meta + class. */ + class1->class_pointer->class_pointer = object_class->class_pointer; + + if (! CLS_ISRESOLV (class1)) + { + CLS_SETRESOLV (class1); + CLS_SETRESOLV (class1->class_pointer); + + if (class1->super_class) + { + Class a_super_class + = objc_get_class ((char *) class1->super_class); + + assert (a_super_class); + + DEBUG_PRINTF ("making class connections for: %s\n", + class1->name); + + /* Assign subclass links for superclass. */ + class1->sibling_class = a_super_class->subclass_list; + a_super_class->subclass_list = class1; + + /* Assign subclass links for meta class of superclass. */ + if (a_super_class->class_pointer) + { + class1->class_pointer->sibling_class + = a_super_class->class_pointer->subclass_list; + a_super_class->class_pointer->subclass_list + = class1->class_pointer; + } + } + else /* A root class, make its meta object be a subclass of + Object. */ + { + class1->class_pointer->sibling_class + = object_class->subclass_list; + object_class->subclass_list = class1->class_pointer; + } + } + } + + /* Assign superclass links. */ + es = NULL; + while ((class1 = class_table_next (&es))) + { + Class sub_class; + for (sub_class = class1->subclass_list; sub_class; + sub_class = sub_class->sibling_class) + { + sub_class->super_class = class1; + if (CLS_ISCLASS (sub_class)) + sub_class->class_pointer->super_class = class1->class_pointer; + } + } + + objc_mutex_unlock (__objc_runtime_mutex); +} + + + +#define CLASSOF(c) ((c)->class_pointer) + +Class +class_pose_as (Class impostor, Class super_class) +{ + if (! CLS_ISRESOLV (impostor)) + __objc_resolve_class_links (); + + /* Preconditions */ + assert (impostor); + assert (super_class); + assert (impostor->super_class == super_class); + assert (CLS_ISCLASS (impostor)); + assert (CLS_ISCLASS (super_class)); + assert (impostor->instance_size == super_class->instance_size); + + { + Class *subclass = &(super_class->subclass_list); + + /* Move subclasses of super_class to impostor. */ + while (*subclass) + { + Class nextSub = (*subclass)->sibling_class; + + if (*subclass != impostor) + { + Class sub = *subclass; + + /* Classes */ + sub->sibling_class = impostor->subclass_list; + sub->super_class = impostor; + impostor->subclass_list = sub; + + /* It will happen that SUB is not a class object if it is + the top of the meta class hierarchy chain (root + meta-class objects inherit their class object). If + that is the case... don't mess with the meta-meta + class. */ + if (CLS_ISCLASS (sub)) + { + /* Meta classes */ + CLASSOF (sub)->sibling_class = + CLASSOF (impostor)->subclass_list; + CLASSOF (sub)->super_class = CLASSOF (impostor); + CLASSOF (impostor)->subclass_list = CLASSOF (sub); + } + } + + *subclass = nextSub; + } + + /* Set subclasses of superclass to be impostor only. */ + super_class->subclass_list = impostor; + CLASSOF (super_class)->subclass_list = CLASSOF (impostor); + + /* Set impostor to have no sibling classes. */ + impostor->sibling_class = 0; + CLASSOF (impostor)->sibling_class = 0; + } + + /* Check relationship of impostor and super_class is kept. */ + assert (impostor->super_class == super_class); + assert (CLASSOF (impostor)->super_class == CLASSOF (super_class)); + + /* This is how to update the lookup table. Regardless of what the + keys of the hashtable is, change all values that are superclass + into impostor. */ + + objc_mutex_lock (__objc_runtime_mutex); + + class_table_replace (super_class, impostor); + + objc_mutex_unlock (__objc_runtime_mutex); + + /* Next, we update the dispatch tables... */ + __objc_update_dispatch_table_for_class (CLASSOF (impostor)); + __objc_update_dispatch_table_for_class (impostor); + + return impostor; +} diff --git a/contrib/libobjc/config.h.in b/contrib/libobjc/config.h.in new file mode 100644 index 0000000..51811a5 --- /dev/null +++ b/contrib/libobjc/config.h.in @@ -0,0 +1,58 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if the compiler has a thread header that is non single. */ +#undef HAVE_GTHR_DEFAULT + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the <sched.h> header file. */ +#undef HAVE_SCHED_H + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if your C compiler doesn't accept -c and -o together. */ +#undef NO_MINUS_C_MINUS_O + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define if the compiler is configured for setjmp/longjmp exceptions. */ +#undef SJLJ_EXCEPTIONS + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS diff --git a/contrib/libobjc/configure b/contrib/libobjc/configure new file mode 100755 index 0000000..59d5565 --- /dev/null +++ b/contrib/libobjc/configure @@ -0,0 +1,6595 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.59 for package-unused version-unused. +# +# Copyright (C) 2003 Free Software Foundation, Inc. +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## --------------------- ## +## M4sh Initialization. ## +## --------------------- ## + +# Be Bourne compatible +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' +elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then + set -o posix +fi +DUALCASE=1; export DUALCASE # for MKS sh + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# Work around bugs in pre-3.0 UWIN ksh. +$as_unset ENV MAIL MAILPATH +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +for as_var in \ + LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ + LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ + LC_TELEPHONE LC_TIME +do + if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then + eval $as_var=C; export $as_var + else + $as_unset $as_var + fi +done + +# Required to use basename. +if expr a : '\(a\)' >/dev/null 2>&1; then + as_expr=expr +else + as_expr=false +fi + +if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + + +# Name of the executable. +as_me=`$as_basename "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)$' \| \ + . : '\(.\)' 2>/dev/null || +echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; } + /^X\/\(\/\/\)$/{ s//\1/; q; } + /^X\/\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + + +# PATH needs CR, and LINENO needs CR and PATH. +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + + + as_lineno_1=$LINENO + as_lineno_2=$LINENO + as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null` + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x$as_lineno_3" = "x$as_lineno_2" || { + # Find who we are. Look in the path if we contain no path at all + # relative or not. + case $0 in + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break +done + + ;; + esac + # We did not find ourselves, most probably we were run as `sh COMMAND' + # in which case we are not to be found in the path. + if test "x$as_myself" = x; then + as_myself=$0 + fi + if test ! -f "$as_myself"; then + { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2 + { (exit 1); exit 1; }; } + fi + case $CONFIG_SHELL in + '') + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for as_base in sh bash ksh sh5; do + case $as_dir in + /*) + if ("$as_dir/$as_base" -c ' + as_lineno_1=$LINENO + as_lineno_2=$LINENO + as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null` + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then + $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; } + $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; } + CONFIG_SHELL=$as_dir/$as_base + export CONFIG_SHELL + exec "$CONFIG_SHELL" "$0" ${1+"$@"} + fi;; + esac + done +done +;; + esac + + # Create $as_me.lineno as a copy of $as_myself, but with $LINENO + # uniformly replaced by the line number. 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then + withval="$with_target_subdir" + +fi; + +# Check whether --with-cross-host or --without-cross-host was given. +if test "${with_cross_host+set}" = set; then + withval="$with_cross_host" + +fi; + +echo "$as_me:$LINENO: checking for --enable-version-specific-runtime-libs" >&5 +echo $ECHO_N "checking for --enable-version-specific-runtime-libs... $ECHO_C" >&6 +# Check whether --enable-version-specific-runtime-libs or --disable-version-specific-runtime-libs was given. +if test "${enable_version_specific_runtime_libs+set}" = set; then + enableval="$enable_version_specific_runtime_libs" + case "$enableval" in + yes) version_specific_libs=yes ;; + no) version_specific_libs=no ;; + *) { { echo "$as_me:$LINENO: error: Unknown argument to enable/disable version-specific libs" >&5 +echo "$as_me: error: Unknown argument to enable/disable version-specific libs" >&2;} + { (exit 1); exit 1; }; };; + esac +else + version_specific_libs=no +fi; +echo "$as_me:$LINENO: result: $version_specific_libs" >&5 +echo "${ECHO_T}$version_specific_libs" >&6 + +# Check whether --enable-objc-gc or --disable-objc-gc was given. +if test "${enable_objc_gc+set}" = set; then + enableval="$enable_objc_gc" + case $enable_objc_gc in + no) + OBJC_BOEHM_GC='' + OBJC_BOEHM_GC_INCLUDES='' + ;; + *) + OBJC_BOEHM_GC=libobjc_gc.la + OBJC_BOEHM_GC_INCLUDES='-I$(top_srcdir)/../boehm-gc/include -I../boehm-gc/include' + ;; +esac +else + OBJC_BOEHM_GC=''; OBJC_BOEHM_GC_INCLUDES='' +fi; + + + +# ----------- +# Directories +# ----------- + +# Find the rest of the source tree framework. +# Default to --enable-multilib +# Check whether --enable-multilib or --disable-multilib was given. +if test "${enable_multilib+set}" = set; then + enableval="$enable_multilib" + case "$enableval" in + yes) multilib=yes ;; + no) multilib=no ;; + *) { { echo "$as_me:$LINENO: error: bad value $enableval for multilib option" >&5 +echo "$as_me: error: bad value $enableval for multilib option" >&2;} + { (exit 1); exit 1; }; } ;; + esac +else + multilib=yes +fi; + +# We may get other options which we leave undocumented: +# --with-target-subdir, --with-multisrctop, --with-multisubdir +# See config-ml.in if you want the gory details. + +if test "$srcdir" = "."; then + if test "$with_target_subdir" != "."; then + multi_basedir="$srcdir/$with_multisrctop../.." + else + multi_basedir="$srcdir/$with_multisrctop.." + fi +else + multi_basedir="$srcdir/.." +fi + + +# Even if the default multilib is not a cross compilation, +# it may be that some of the other multilibs are. +if test $cross_compiling = no && test $multilib = yes \ + && test "x${with_multisubdir}" != x ; then + cross_compiling=maybe +fi + + ac_config_commands="$ac_config_commands default-1" + + +echo "$as_me:$LINENO: checking host system type" >&5 +echo $ECHO_N "checking host system type... $ECHO_C" >&6 +if test "${ac_cv_host+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_host_alias=$host_alias +test -z "$ac_cv_host_alias" && + ac_cv_host_alias=$ac_cv_build_alias +ac_cv_host=`$ac_config_sub $ac_cv_host_alias` || + { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5 +echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;} + { (exit 1); exit 1; }; } + +fi +echo "$as_me:$LINENO: result: $ac_cv_host" >&5 +echo "${ECHO_T}$ac_cv_host" >&6 +host=$ac_cv_host +host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` +host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` +host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` + + +echo "$as_me:$LINENO: checking target system type" >&5 +echo $ECHO_N "checking target system type... $ECHO_C" >&6 +if test "${ac_cv_target+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_target_alias=$target_alias +test "x$ac_cv_target_alias" = "x" && + ac_cv_target_alias=$ac_cv_host_alias +ac_cv_target=`$ac_config_sub $ac_cv_target_alias` || + { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_target_alias failed" >&5 +echo "$as_me: error: $ac_config_sub $ac_cv_target_alias failed" >&2;} + { (exit 1); exit 1; }; } + +fi +echo "$as_me:$LINENO: result: $ac_cv_target" >&5 +echo "${ECHO_T}$ac_cv_target" >&6 +target=$ac_cv_target +target_cpu=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` +target_vendor=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` +target_os=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` + + +# The aliases save the names the user supplied, while $host etc. +# will get canonicalized. +test -n "$target_alias" && + test "$program_prefix$program_suffix$program_transform_name" = \ + NONENONEs,x,x, && + program_prefix=${target_alias}- + + + +# Export source directory. +# These need to be absolute paths, yet at the same time need to +# canonicalize only relative paths, because then amd will not unmount +# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. +case $srcdir in + \\/$* | ?:\\/*) glibcpp_srcdir=${srcdir} ;; + *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; +esac + + +# Calculate toolexeclibdir +# Also toolexecdir, though it's only used in toolexeclibdir +case ${version_specific_libs} in + yes) + # Need the gcc compiler version to know where to install libraries + # and header files if --enable-version-specific-runtime-libs option + # is selected. + toolexecdir='$(libdir)/gcc/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' + ;; + no) + if test -n "$with_cross_host" && + test x"$with_cross_host" != x"no"; then + # Install a library built with a cross compiler in tooldir, not libdir. + toolexecdir='$(exec_prefix)/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/lib' + else + toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' + toolexeclibdir='$(libdir)' + fi + multi_os_directory=`$CC -print-multi-os-directory` + case $multi_os_directory in + .) ;; # Avoid trailing /. + *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; + esac + ;; +esac + + + +# Figure out if we want to name the include directory and the +# library name changes differently. +includedirname=include +libext= +case "${host}" in + *-darwin*) + # Darwin is the only target so far that needs a different include directory. + includedirname=include-gnu-runtime + libext=-gnu + ;; +esac + + + + ac_config_headers="$ac_config_headers config.h" + + +# -------- +# Programs +# -------- + + + +# We must force CC to /not/ be a precious variable; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + CC=$ac_ct_CC +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + CC=$ac_ct_CC +else + CC="$ac_cv_prog_CC" +fi + +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + test -n "$ac_ct_CC" && break +done + + CC=$ac_ct_CC +fi + +fi + + +test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&5 +echo "$as_me: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + +# Provide some information about the compiler. +echo "$as_me:$LINENO:" \ + "checking for C compiler version" >&5 +ac_compiler=`set X $ac_compile; echo $2` +{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5 + (eval $ac_compiler --version </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5 + (eval $ac_compiler -v </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5 + (eval $ac_compiler -V </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } + +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +# FIXME: Cleanup? +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + gcc_no_link=no +else + gcc_no_link=yes +fi + +if test x$gcc_no_link = xyes; then + # Setting cross_compile will disable run tests; it will + # also disable AC_CHECK_FILE but that's generally + # correct if we can't link. + cross_compiling=yes + EXEEXT= +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 +echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6 +ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` +if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 + (eval $ac_link_default) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # Find the output, starting from the most likely. This scheme is +# not robust to junk in `.', hence go to wildcards (a.*) only as a last +# resort. + +# Be careful to initialize this variable, since it used to be cached. +# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile. +ac_cv_exeext= +# b.out is created by i960 compilers. +for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) + ;; + conftest.$ac_ext ) + # This is the source file. + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + # FIXME: I believe we export ac_cv_exeext for Libtool, + # but it would be cool to find out if it's true. Does anybody + # maintain Libtool? --akim. + export ac_cv_exeext + break;; + * ) + break;; + esac +done +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: C compiler cannot create executables +See \`config.log' for more details." >&5 +echo "$as_me: error: C compiler cannot create executables +See \`config.log' for more details." >&2;} + { (exit 77); exit 77; }; } +fi + +ac_exeext=$ac_cv_exeext +echo "$as_me:$LINENO: result: $ac_file" >&5 +echo "${ECHO_T}$ac_file" >&6 + +# Check the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +echo "$as_me:$LINENO: checking whether the C compiler works" >&5 +echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6 +# FIXME: These cross compiler hacks should be removed for Autoconf 3.0 +# If not cross compiling, check that we can run a simple program. +if test "$cross_compiling" != yes; then + if { ac_try='./$ac_file' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { echo "$as_me:$LINENO: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + fi + fi +fi +echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 + +rm -f a.out a.exe conftest$ac_cv_exeext b.out +ac_clean_files=$ac_clean_files_save +# Check the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 +echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6 +echo "$as_me:$LINENO: result: $cross_compiling" >&5 +echo "${ECHO_T}$cross_compiling" >&6 + +echo "$as_me:$LINENO: checking for suffix of executables" >&5 +echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6 +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # If both `conftest.exe' and `conftest' are `present' (well, observable) +# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + export ac_cv_exeext + break;; + * ) break;; + esac +done +else + { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest$ac_cv_exeext +echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 +echo "${ECHO_T}$ac_cv_exeext" >&6 + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +fi +echo "$as_me:$LINENO: checking for suffix of object files" >&5 +echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6 +if test "${ac_cv_objext+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_objext" >&5 +echo "${ECHO_T}$ac_cv_objext" >&6 +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5 +echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6 +if test "${ac_cv_c_compiler_gnu+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_compiler_gnu=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_compiler_gnu=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5 +echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6 +GCC=`test $ac_compiler_gnu = yes && echo yes` +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +CFLAGS="-g" +echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5 +echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6 +if test "${ac_cv_prog_cc_g+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_prog_cc_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_prog_cc_g=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_g" >&6 +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5 +echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6 +if test "${ac_cv_prog_cc_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_prog_cc_stdc=no +ac_save_CC=$CC +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdarg.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std1 is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std1. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +# Don't try gcc -ansi; that turns off useful extensions and +# breaks some systems' header files. +# AIX -qlanglvl=ansi +# Ultrix and OSF/1 -std1 +# HP-UX 10.20 and later -Ae +# HP-UX older versions -Aa -D_HPUX_SOURCE +# SVR4 -Xc -D__EXTENSIONS__ +for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_prog_cc_stdc=$ac_arg +break +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext +done +rm -f conftest.$ac_ext conftest.$ac_objext +CC=$ac_save_CC + +fi + +case "x$ac_cv_prog_cc_stdc" in + x|xno) + echo "$as_me:$LINENO: result: none needed" >&5 +echo "${ECHO_T}none needed" >&6 ;; + *) + echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6 + CC="$CC $ac_cv_prog_cc_stdc" ;; +esac + +# Some people use a C++ compiler to compile C. Since we use `exit', +# in C++ we need to declare it. In case someone uses the same compiler +# for both compiling C and C++ we need to have the C++ compiler decide +# the declaration of exit, since it's the most demanding environment. +cat >conftest.$ac_ext <<_ACEOF +#ifndef __cplusplus + choke me +#endif +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + for ac_declaration in \ + '' \ + 'extern "C" void std::exit (int) throw (); using std::exit;' \ + 'extern "C" void std::exit (int); using std::exit;' \ + 'extern "C" void exit (int) throw ();' \ + 'extern "C" void exit (int);' \ + 'void exit (int);' +do + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_declaration +#include <stdlib.h> +int +main () +{ +exit (42); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +continue +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_declaration +int +main () +{ +exit (42); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + break +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +done +rm -f conftest* +if test -n "$ac_declaration"; then + echo '#ifdef __cplusplus' >>confdefs.h + echo $ac_declaration >>confdefs.h + echo '#endif' >>confdefs.h +fi + +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +# extra LD Flags which are required for targets +case "${host}" in + *-darwin*) + # Darwin needs -single_module when linking libobjc + extra_ldflags_libobjc=-Wl,-single_module + ;; +esac + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args. +set dummy ${ac_tool_prefix}as; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_AS+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$AS"; then + ac_cv_prog_AS="$AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AS="${ac_tool_prefix}as" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +AS=$ac_cv_prog_AS +if test -n "$AS"; then + echo "$as_me:$LINENO: result: $AS" >&5 +echo "${ECHO_T}$AS" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_AS"; then + ac_ct_AS=$AS + # Extract the first word of "as", so it can be a program name with args. +set dummy as; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_AS+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_AS"; then + ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AS="as" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_AS=$ac_cv_prog_ac_ct_AS +if test -n "$ac_ct_AS"; then + echo "$as_me:$LINENO: result: $ac_ct_AS" >&5 +echo "${ECHO_T}$ac_ct_AS" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + AS=$ac_ct_AS +else + AS="$ac_cv_prog_AS" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args. +set dummy ${ac_tool_prefix}ar; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_AR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="${ac_tool_prefix}ar" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + echo "$as_me:$LINENO: result: $AR" >&5 +echo "${ECHO_T}$AR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_AR"; then + ac_ct_AR=$AR + # Extract the first word of "ar", so it can be a program name with args. +set dummy ar; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_AR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="ar" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + echo "$as_me:$LINENO: result: $ac_ct_AR" >&5 +echo "${ECHO_T}$ac_ct_AR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + AR=$ac_ct_AR +else + AR="$ac_cv_prog_AR" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + echo "$as_me:$LINENO: result: $RANLIB" >&5 +echo "${ECHO_T}$RANLIB" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":" +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5 +echo "${ECHO_T}$ac_ct_RANLIB" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + RANLIB=$ac_ct_RANLIB +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5 +echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6 +if test -z "$INSTALL"; then +if test "${ac_cv_path_install+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in + ./ | .// | /cC/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + done + done + ;; +esac +done + + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. We don't cache a + # path for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the path is relative. + INSTALL=$ac_install_sh + fi +fi +echo "$as_me:$LINENO: result: $INSTALL" >&5 +echo "${ECHO_T}$INSTALL" >&6 + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + + +echo "$as_me:$LINENO: checking whether to enable maintainer-specific portions of Makefiles" >&5 +echo $ECHO_N "checking whether to enable maintainer-specific portions of Makefiles... $ECHO_C" >&6 + # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given. +if test "${enable_maintainer_mode+set}" = set; then + enableval="$enable_maintainer_mode" + USE_MAINTAINER_MODE=$enableval +else + USE_MAINTAINER_MODE=no +fi; + echo "$as_me:$LINENO: result: $USE_MAINTAINER_MODE" >&5 +echo "${ECHO_T}$USE_MAINTAINER_MODE" >&6 + + +if test $USE_MAINTAINER_MODE = yes; then + MAINTAINER_MODE_TRUE= + MAINTAINER_MODE_FALSE='#' +else + MAINTAINER_MODE_TRUE='#' + MAINTAINER_MODE_FALSE= +fi + + MAINT=$MAINTAINER_MODE_TRUE + + + +# Enable Win32 DLL on MS Windows - FIXME + + +# Check whether --enable-shared or --disable-shared was given. +if test "${enable_shared+set}" = set; then + enableval="$enable_shared" + p=${PACKAGE-default} +case $enableval in +yes) enable_shared=yes ;; +no) enable_shared=no ;; +*) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," + for pkg in $enableval; do + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$ac_save_ifs" + ;; +esac +else + enable_shared=yes +fi; +# Check whether --enable-static or --disable-static was given. +if test "${enable_static+set}" = set; then + enableval="$enable_static" + p=${PACKAGE-default} +case $enableval in +yes) enable_static=yes ;; +no) enable_static=no ;; +*) + enable_static=no + # Look at the argument we got. We use all the common list separators. + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," + for pkg in $enableval; do + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS="$ac_save_ifs" + ;; +esac +else + enable_static=yes +fi; +# Check whether --enable-fast-install or --disable-fast-install was given. +if test "${enable_fast_install+set}" = set; then + enableval="$enable_fast_install" + p=${PACKAGE-default} +case $enableval in +yes) enable_fast_install=yes ;; +no) enable_fast_install=no ;; +*) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," + for pkg in $enableval; do + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS="$ac_save_ifs" + ;; +esac +else + enable_fast_install=yes +fi; + +# Check whether --with-gnu-ld or --without-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then + withval="$with_gnu_ld" + test "$withval" = no || with_gnu_ld=yes +else + with_gnu_ld=no +fi; +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + echo "$as_me:$LINENO: checking for ld used by GCC" >&5 +echo $ECHO_N "checking for ld used by GCC... $ECHO_C" >&6 + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [\\/]* | [A-Za-z]:[\\/]*) + re_direlt='/[^/][^/]*/\.\./' + # Canonicalize the path of ld + ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'` + while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do + ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + echo "$as_me:$LINENO: checking for GNU ld" >&5 +echo $ECHO_N "checking for GNU ld... $ECHO_C" >&6 +else + echo "$as_me:$LINENO: checking for non-GNU ld" >&5 +echo $ECHO_N "checking for non-GNU ld... $ECHO_C" >&6 +fi +if test "${lt_cv_path_LD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -z "$LD"; then + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some GNU ld's only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + if "$lt_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then + test "$with_gnu_ld" != no && break + else + test "$with_gnu_ld" != yes && break + fi + fi + done + IFS="$ac_save_ifs" +else + lt_cv_path_LD="$LD" # Let the user override the test with a path. +fi +fi + +LD="$lt_cv_path_LD" +if test -n "$LD"; then + echo "$as_me:$LINENO: result: $LD" >&5 +echo "${ECHO_T}$LD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi +test -z "$LD" && { { echo "$as_me:$LINENO: error: no acceptable ld found in \$PATH" >&5 +echo "$as_me: error: no acceptable ld found in \$PATH" >&2;} + { (exit 1); exit 1; }; } +echo "$as_me:$LINENO: checking if the linker ($LD) is GNU ld" >&5 +echo $ECHO_N "checking if the linker ($LD) is GNU ld... $ECHO_C" >&6 +if test "${lt_cv_prog_gnu_ld+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # I'd rather use --version here, but apparently some GNU ld's only accept -v. +if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then + lt_cv_prog_gnu_ld=yes +else + lt_cv_prog_gnu_ld=no +fi +fi +echo "$as_me:$LINENO: result: $lt_cv_prog_gnu_ld" >&5 +echo "${ECHO_T}$lt_cv_prog_gnu_ld" >&6 +with_gnu_ld=$lt_cv_prog_gnu_ld + + +echo "$as_me:$LINENO: checking for $LD option to reload object files" >&5 +echo $ECHO_N "checking for $LD option to reload object files... $ECHO_C" >&6 +if test "${lt_cv_ld_reload_flag+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + lt_cv_ld_reload_flag='-r' +fi +echo "$as_me:$LINENO: result: $lt_cv_ld_reload_flag" >&5 +echo "${ECHO_T}$lt_cv_ld_reload_flag" >&6 +reload_flag=$lt_cv_ld_reload_flag +test -n "$reload_flag" && reload_flag=" $reload_flag" + +echo "$as_me:$LINENO: checking for BSD-compatible nm" >&5 +echo $ECHO_N "checking for BSD-compatible nm... $ECHO_C" >&6 +if test "${lt_cv_path_NM+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}" + for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/${ac_tool_prefix}nm + if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then + lt_cv_path_NM="$tmp_nm -B" + break + elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then + lt_cv_path_NM="$tmp_nm -p" + break + else + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + fi + fi + done + IFS="$ac_save_ifs" + test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm +fi +fi + +NM="$lt_cv_path_NM" +echo "$as_me:$LINENO: result: $NM" >&5 +echo "${ECHO_T}$NM" >&6 + +echo "$as_me:$LINENO: checking whether ln -s works" >&5 +echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6 +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 +else + echo "$as_me:$LINENO: result: no, using $LN_S" >&5 +echo "${ECHO_T}no, using $LN_S" >&6 +fi + +echo "$as_me:$LINENO: checking how to recognise dependant libraries" >&5 +echo $ECHO_N "checking how to recognise dependant libraries... $ECHO_C" >&6 +if test "${lt_cv_deplibs_check_method+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# `unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [regex]' -- check by looking for files in library path +# which responds to the $file_magic_cmd with a given egrep regex. +# If you have `file' or equivalent on your system and you're not sure +# whether `pass_all' will *always* work, you probably want this one. + +case $host_os in +aix*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi4*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin* | mingw* |pw32*) + lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + # this will be overwritten by pass_all, but leave it in just in case + lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library' + lt_cv_file_magic_cmd='/usr/bin/file -L' + case "$host_os" in + rhapsody* | darwin1.012) + lt_cv_file_magic_test_file='/System/Library/Frameworks/System.framework/System' + ;; + *) # Darwin 1.3 on + lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib' + ;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | kfreebsd*-gnu) + if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20*|hpux11*) + case $host_cpu in + hppa*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + esac + ;; + +irix5* | irix6*) + case $host_os in + irix5*) + # this will be overridden with pass_all, but let us keep it just in case + lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1" + ;; + *) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + # this will be overridden with pass_all, but let us keep it just in case + lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1" + ;; + esac + lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*` + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be Linux ELF. +linux-gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd* | knetbsd*-gnu) + if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so$' + fi + ;; + +newsos6) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +osf3* | osf4* | osf5*) + # this will be overridden with pass_all, but let us keep it just in case + lt_cv_deplibs_check_method='file_magic COFF format alpha shared library' + lt_cv_file_magic_test_file=/shlib/libc.so + lt_cv_deplibs_check_method=pass_all + ;; + +sco3.2v5*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + lt_cv_file_magic_test_file=/lib/libc.so + ;; + +sysv5uw[78]* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + case $host_vendor in + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + esac + ;; +esac + +fi +echo "$as_me:$LINENO: result: $lt_cv_deplibs_check_method" >&5 +echo "${ECHO_T}$lt_cv_deplibs_check_method" >&6 +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method + + + + + +# Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers! + +# find the maximum length of command line arguments +echo "$as_me:$LINENO: checking the maximum length of command line arguments" >&5 +echo $ECHO_N "checking the maximum length of command line arguments... $ECHO_C" >&6 +if test "${lt_cv_sys_max_cmd_len+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + cygwin* | mingw*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for *BSD + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + esac + +fi + +if test -n "$lt_cv_sys_max_cmd_len" ; then + echo "$as_me:$LINENO: result: $lt_cv_sys_max_cmd_len" >&5 +echo "${ECHO_T}$lt_cv_sys_max_cmd_len" >&6 +else + echo "$as_me:$LINENO: result: none" >&5 +echo "${ECHO_T}none" >&6 +fi + + +# Only perform the check for file, if the check method requires it +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + echo "$as_me:$LINENO: checking for ${ac_tool_prefix}file" >&5 +echo $ECHO_N "checking for ${ac_tool_prefix}file... $ECHO_C" >&6 +if test "${lt_cv_path_MAGIC_CMD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $MAGIC_CMD in + /*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; + ?:/*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path. + ;; + *) + ac_save_MAGIC_CMD="$MAGIC_CMD" + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" + ac_dummy="/usr/bin:$PATH" + for ac_dir in $ac_dummy; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/${ac_tool_prefix}file; then + lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`" + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + egrep "$file_magic_regex" > /dev/null; then + : + else + cat <<EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +EOF + fi ;; + esac + fi + break + fi + done + IFS="$ac_save_ifs" + MAGIC_CMD="$ac_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + echo "$as_me:$LINENO: result: $MAGIC_CMD" >&5 +echo "${ECHO_T}$MAGIC_CMD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + echo "$as_me:$LINENO: checking for file" >&5 +echo $ECHO_N "checking for file... $ECHO_C" >&6 +if test "${lt_cv_path_MAGIC_CMD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + case $MAGIC_CMD in + /*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; + ?:/*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path. + ;; + *) + ac_save_MAGIC_CMD="$MAGIC_CMD" + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" + ac_dummy="/usr/bin:$PATH" + for ac_dir in $ac_dummy; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/file; then + lt_cv_path_MAGIC_CMD="$ac_dir/file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`" + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + egrep "$file_magic_regex" > /dev/null; then + : + else + cat <<EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +EOF + fi ;; + esac + fi + break + fi + done + IFS="$ac_save_ifs" + MAGIC_CMD="$ac_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + echo "$as_me:$LINENO: result: $MAGIC_CMD" >&5 +echo "${ECHO_T}$MAGIC_CMD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + echo "$as_me:$LINENO: result: $RANLIB" >&5 +echo "${ECHO_T}$RANLIB" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":" +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5 +echo "${ECHO_T}$ac_ct_RANLIB" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + RANLIB=$ac_ct_RANLIB +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_STRIP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + echo "$as_me:$LINENO: result: $STRIP" >&5 +echo "${ECHO_T}$STRIP" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":" +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5 +echo "${ECHO_T}$ac_ct_STRIP" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + STRIP=$ac_ct_STRIP +else + STRIP="$ac_cv_prog_STRIP" +fi + + +# Check for any special flags to pass to ltconfig. +libtool_flags="--cache-file=$cache_file" +test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared" +test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static" +test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install" +test "$GCC" = yes && libtool_flags="$libtool_flags --with-gcc" +test "$lt_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld" + + +# Check whether --enable-libtool-lock or --disable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then + enableval="$enable_libtool_lock" + +fi; +test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock" +test x"$silent" = xyes && libtool_flags="$libtool_flags --silent" + + +# Check whether --with-pic or --without-pic was given. +if test "${with_pic+set}" = set; then + withval="$with_pic" + pic_mode="$withval" +else + pic_mode=default +fi; +test x"$pic_mode" = xyes && libtool_flags="$libtool_flags --prefer-pic" +test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic" + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +*-*-irix6*) + # Find out which ABI we are using. + echo '#line 3774 "configure"' > conftest.$ac_ext + if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + case "`/usr/bin/file conftest.o`" in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; + +x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + case "`/usr/bin/file conftest.o`" in + *32-bit*) + case $host in + x86_64-*linux*) + LD="${LD-ld} -m elf_i386" + ;; + ppc64-*linux*|powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + ppc*-*linux*|powerpc*-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + echo "$as_me:$LINENO: checking whether the C compiler needs -belf" >&5 +echo $ECHO_N "checking whether the C compiler needs -belf... $ECHO_C" >&6 +if test "${lt_cv_cc_needs_belf+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + + + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + if test x$gcc_no_link = xyes; then + { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5 +echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;} + { (exit 1); exit 1; }; } +fi +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + lt_cv_cc_needs_belf=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +lt_cv_cc_needs_belf=no +fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +echo "$as_me:$LINENO: result: $lt_cv_cc_needs_belf" >&5 +echo "${ECHO_T}$lt_cv_cc_needs_belf" >&6 + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; + + +esac + + +# Save cache, so that ltconfig can load it +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, don't put newlines in cache variables' values. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +{ + (set) 2>&1 | + case `(ac_space=' '; set | grep ac_space) 2>&1` in + *ac_space=\ *) + # `set' does not quote correctly, so add quotes (double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \). + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n \ + "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p" + ;; + esac; +} | + sed ' + t clear + : clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + : end' >>confcache +if diff $cache_file confcache >/dev/null 2>&1; then :; else + if test -w $cache_file; then + test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file" + cat confcache >$cache_file + else + echo "not updating unwritable cache $cache_file" + fi +fi +rm -f confcache + +# Actually configure libtool. ac_aux_dir is where install-sh is found. +AR="$AR" LTCC="$CC" CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \ +MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \ +LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \ +AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \ +objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \ +deplibs_check_method="$deplibs_check_method" file_magic_cmd="$file_magic_cmd" \ +${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \ +$libtool_flags --no-verify --build="$build" $ac_aux_dir/ltmain.sh $host \ +|| { { echo "$as_me:$LINENO: error: libtool configure failed" >&5 +echo "$as_me: error: libtool configure failed" >&2;} + { (exit 1); exit 1; }; } + +# Reload cache, that may have been modified by ltconfig +if test -r "$cache_file"; then + # Some versions of bash will fail to source /dev/null (special + # files actually), so we avoid doing that. + if test -f "$cache_file"; then + { echo "$as_me:$LINENO: loading cache $cache_file" >&5 +echo "$as_me: loading cache $cache_file" >&6;} + case $cache_file in + [\\/]* | ?:[\\/]* ) . $cache_file;; + *) . ./$cache_file;; + esac + fi +else + { echo "$as_me:$LINENO: creating cache $cache_file" >&5 +echo "$as_me: creating cache $cache_file" >&6;} + >$cache_file +fi + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh $ac_aux_dir/ltcf-c.sh" + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + +# Redirect the config.log output again, so that the ltconfig log is not +# clobbered by the next message. +exec 5>>./config.log + + + + + + + +if test "x$CC" != xcc; then + echo "$as_me:$LINENO: checking whether $CC and cc understand -c and -o together" >&5 +echo $ECHO_N "checking whether $CC and cc understand -c and -o together... $ECHO_C" >&6 +else + echo "$as_me:$LINENO: checking whether cc understands -c and -o together" >&5 +echo $ECHO_N "checking whether cc understands -c and -o together... $ECHO_C" >&6 +fi +set dummy $CC; ac_cc=`echo $2 | + sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'` +if eval "test \"\${ac_cv_prog_cc_${ac_cc}_c_o+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +# Make sure it works both with $CC and with simple cc. +# We do the test twice because some compilers refuse to overwrite an +# existing .o file with -o, though they will create one. +ac_try='$CC -c conftest.$ac_ext -o conftest.$ac_objext >&5' +if { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + test -f conftest.$ac_objext && { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; +then + eval ac_cv_prog_cc_${ac_cc}_c_o=yes + if test "x$CC" != xcc; then + # Test first that cc exists at all. + if { ac_try='cc -c conftest.$ac_ext >&5' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_try='cc -c conftest.$ac_ext -o conftest.$ac_objext >&5' + if { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + test -f conftest.$ac_objext && { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; + then + # cc works too. + : + else + # cc exists but doesn't like -o. + eval ac_cv_prog_cc_${ac_cc}_c_o=no + fi + fi + fi +else + eval ac_cv_prog_cc_${ac_cc}_c_o=no +fi +rm -f conftest* + +fi +if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = yes"; then + echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 + +cat >>confdefs.h <<\_ACEOF +#define NO_MINUS_C_MINUS_O 1 +_ACEOF + +fi + +# expand $ac_aux_dir to an absolute path +am_aux_dir=`cd $ac_aux_dir && pwd` + +# FIXME: we rely on the cache variable name because +# there is no other way. +set dummy $CC +ac_cc=`echo $2 | sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'` +if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" != yes"; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi + + +echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6 +set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'` +if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.make <<\_ACEOF +all: + @echo 'ac_maketemp="$(MAKE)"' +_ACEOF +# GNU make sometimes prints "make[1]: Entering...", which would confuse us. +eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=` +if test -n "$ac_maketemp"; then + eval ac_cv_prog_make_${ac_make}_set=yes +else + eval ac_cv_prog_make_${ac_make}_set=no +fi +rm -f conftest.make +fi +if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then + echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 + SET_MAKE= +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 + SET_MAKE="MAKE=${MAKE-make}" +fi + + +# ------- +# Headers +# ------- + +# Sanity check for the cross-compilation case: +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 +echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6 +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if test "${ac_cv_prog_CPP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +echo "$as_me:$LINENO: result: $CPP" >&5 +echo "${ECHO_T}$CPP" >&6 +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + : +else + { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&5 +echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +echo "$as_me:$LINENO: checking for egrep" >&5 +echo $ECHO_N "checking for egrep... $ECHO_C" >&6 +if test "${ac_cv_prog_egrep+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if echo a | (grep -E '(a|b)') >/dev/null 2>&1 + then ac_cv_prog_egrep='grep -E' + else ac_cv_prog_egrep='egrep' + fi +fi +echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 +echo "${ECHO_T}$ac_cv_prog_egrep" >&6 + EGREP=$ac_cv_prog_egrep + + +echo "$as_me:$LINENO: checking for ANSI C header files" >&5 +echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 +if test "${ac_cv_header_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_header_stdc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_header_stdc=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then + : +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ctype.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + exit(2); + exit (0); +} +_ACEOF +rm -f conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) +ac_cv_header_stdc=no +fi +rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi +fi +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 +echo "${ECHO_T}$ac_cv_header_stdc" >&6 +if test $ac_cv_header_stdc = yes; then + +cat >>confdefs.h <<\_ACEOF +#define STDC_HEADERS 1 +_ACEOF + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. + + + + + + + + + +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do +as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` +echo "$as_me:$LINENO: checking for $ac_header" >&5 +echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 +if eval "test \"\${$as_ac_Header+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default + +#include <$ac_header> +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + eval "$as_ac_Header=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +eval "$as_ac_Header=no" +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 +if test `eval echo '${'$as_ac_Header'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +if test "${ac_cv_header_stdio_h+set}" = set; then + echo "$as_me:$LINENO: checking for stdio.h" >&5 +echo $ECHO_N "checking for stdio.h... $ECHO_C" >&6 +if test "${ac_cv_header_stdio_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdio_h" >&5 +echo "${ECHO_T}$ac_cv_header_stdio_h" >&6 +else + # Is the header compilable? +echo "$as_me:$LINENO: checking stdio.h usability" >&5 +echo $ECHO_N "checking stdio.h usability... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default +#include <stdio.h> +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_header_compiler=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_header_compiler=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 +echo "${ECHO_T}$ac_header_compiler" >&6 + +# Is the header present? +echo "$as_me:$LINENO: checking stdio.h presence" >&5 +echo $ECHO_N "checking stdio.h presence... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdio.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + ac_header_preproc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_header_preproc=no +fi +rm -f conftest.err conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 +echo "${ECHO_T}$ac_header_preproc" >&6 + +# So? What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in + yes:no: ) + { echo "$as_me:$LINENO: WARNING: stdio.h: accepted by the compiler, rejected by the preprocessor!" >&5 +echo "$as_me: WARNING: stdio.h: accepted by the compiler, rejected by the preprocessor!" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: proceeding with the compiler's result" >&5 +echo "$as_me: WARNING: stdio.h: proceeding with the compiler's result" >&2;} + ac_header_preproc=yes + ;; + no:yes:* ) + { echo "$as_me:$LINENO: WARNING: stdio.h: present but cannot be compiled" >&5 +echo "$as_me: WARNING: stdio.h: present but cannot be compiled" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: check for missing prerequisite headers?" >&5 +echo "$as_me: WARNING: stdio.h: check for missing prerequisite headers?" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: see the Autoconf documentation" >&5 +echo "$as_me: WARNING: stdio.h: see the Autoconf documentation" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: section \"Present But Cannot Be Compiled\"" >&5 +echo "$as_me: WARNING: stdio.h: section \"Present But Cannot Be Compiled\"" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: proceeding with the preprocessor's result" >&5 +echo "$as_me: WARNING: stdio.h: proceeding with the preprocessor's result" >&2;} + { echo "$as_me:$LINENO: WARNING: stdio.h: in the future, the compiler will take precedence" >&5 +echo "$as_me: WARNING: stdio.h: in the future, the compiler will take precedence" >&2;} + ( + cat <<\_ASBOX +## ----------------------------------------- ## +## Report this to the package-unused lists. ## +## ----------------------------------------- ## +_ASBOX + ) | + sed "s/^/$as_me: WARNING: /" >&2 + ;; +esac +echo "$as_me:$LINENO: checking for stdio.h" >&5 +echo $ECHO_N "checking for stdio.h... $ECHO_C" >&6 +if test "${ac_cv_header_stdio_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_header_stdio_h=$ac_header_preproc +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdio_h" >&5 +echo "${ECHO_T}$ac_cv_header_stdio_h" >&6 + +fi +if test $ac_cv_header_stdio_h = yes; then + : +else + { { echo "$as_me:$LINENO: error: Can't find stdio.h. +You must have a usable C system for the target already installed, at least +including headers and, preferably, the library, before you can configure +the Objective C runtime system. If necessary, install gcc now with +\`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'." >&5 +echo "$as_me: error: Can't find stdio.h. +You must have a usable C system for the target already installed, at least +including headers and, preferably, the library, before you can configure +the Objective C runtime system. If necessary, install gcc now with +\`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'." >&2;} + { (exit 1); exit 1; }; } +fi + + + +echo "$as_me:$LINENO: checking for ANSI C header files" >&5 +echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 +if test "${ac_cv_header_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_header_stdc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_header_stdc=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then + : +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ctype.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + exit(2); + exit (0); +} +_ACEOF +rm -f conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) +ac_cv_header_stdc=no +fi +rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi +fi +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 +echo "${ECHO_T}$ac_cv_header_stdc" >&6 +if test $ac_cv_header_stdc = yes; then + +cat >>confdefs.h <<\_ACEOF +#define STDC_HEADERS 1 +_ACEOF + +fi + + + +for ac_header in sched.h +do +as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` +if eval "test \"\${$as_ac_Header+set}\" = set"; then + echo "$as_me:$LINENO: checking for $ac_header" >&5 +echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 +if eval "test \"\${$as_ac_Header+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 +else + # Is the header compilable? +echo "$as_me:$LINENO: checking $ac_header usability" >&5 +echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default +#include <$ac_header> +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_header_compiler=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_header_compiler=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 +echo "${ECHO_T}$ac_header_compiler" >&6 + +# Is the header present? +echo "$as_me:$LINENO: checking $ac_header presence" >&5 +echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <$ac_header> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + ac_header_preproc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_header_preproc=no +fi +rm -f conftest.err conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 +echo "${ECHO_T}$ac_header_preproc" >&6 + +# So? What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in + yes:no: ) + { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5 +echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5 +echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;} + ac_header_preproc=yes + ;; + no:yes:* ) + { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5 +echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5 +echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5 +echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5 +echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 +echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;} + { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5 +echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;} + ( + cat <<\_ASBOX +## ----------------------------------------- ## +## Report this to the package-unused lists. ## +## ----------------------------------------- ## +_ASBOX + ) | + sed "s/^/$as_me: WARNING: /" >&2 + ;; +esac +echo "$as_me:$LINENO: checking for $ac_header" >&5 +echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 +if eval "test \"\${$as_ac_Header+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + eval "$as_ac_Header=\$ac_header_preproc" +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 + +fi +if test `eval echo '${'$as_ac_Header'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +# ----------- +# Miscellanea +# ----------- + +echo "$as_me:$LINENO: checking for thread model used by GCC" >&5 +echo $ECHO_N "checking for thread model used by GCC... $ECHO_C" >&6 +target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` +echo "$as_me:$LINENO: result: $target_thread_file" >&5 +echo "${ECHO_T}$target_thread_file" >&6 + +if test $target_thread_file != single; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_GTHR_DEFAULT 1 +_ACEOF + +fi + + +echo "$as_me:$LINENO: checking for exception model to use" >&5 +echo $ECHO_N "checking for exception model to use... $ECHO_C" >&6 +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +# Check whether --enable-sjlj-exceptions or --disable-sjlj-exceptions was given. +if test "${enable_sjlj_exceptions+set}" = set; then + enableval="$enable_sjlj_exceptions" + : +else + cat > conftest.$ac_ext << EOF +#line 5202 "configure" +@interface Frob +@end +@implementation Frob +@end +int proc(); +int foo() +{ + @try { + return proc(); + } + @catch (Frob* ex) { + return 0; + } +} +EOF +old_CFLAGS="$CFLAGS" +CFLAGS="-x objective-c -fgnu-runtime -fobjc-exceptions -S" +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then + enable_sjlj_exceptions=yes + elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then + enable_sjlj_exceptions=no + fi +fi +CFLAGS="$old_CFLAGS" +rm -f conftest* +fi; +if test x$enable_sjlj_exceptions = xyes; then + +cat >>confdefs.h <<\_ACEOF +#define SJLJ_EXCEPTIONS 1 +_ACEOF + + ac_exception_model_name=sjlj +elif test x$enable_sjlj_exceptions = xno; then + ac_exception_model_name="call frame" +else + { { echo "$as_me:$LINENO: error: unable to detect exception model" >&5 +echo "$as_me: error: unable to detect exception model" >&2;} + { (exit 1); exit 1; }; } +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +echo "$as_me:$LINENO: result: $ac_exception_model_name" >&5 +echo "${ECHO_T}$ac_exception_model_name" >&6 + +# ------ +# Output +# ------ + + ac_config_files="$ac_config_files Makefile" + + + ac_config_commands="$ac_config_commands default" + + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, don't put newlines in cache variables' values. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +{ + (set) 2>&1 | + case `(ac_space=' '; set | grep ac_space) 2>&1` in + *ac_space=\ *) + # `set' does not quote correctly, so add quotes (double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \). + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n \ + "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p" + ;; + esac; +} | + sed ' + t clear + : clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + : end' >>confcache +if diff $cache_file confcache >/dev/null 2>&1; then :; else + if test -w $cache_file; then + test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file" + cat confcache >$cache_file + else + echo "not updating unwritable cache $cache_file" + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +# VPATH may cause trouble with some makes, so we remove $(srcdir), +# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=/{ +s/:*\$(srcdir):*/:/; +s/:*\${srcdir}:*/:/; +s/:*@srcdir@:*/:/; +s/^\([^=]*=[ ]*\):*/\1/; +s/:*$//; +s/^[^=]*=[ ]*$//; +}' +fi + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_i=`echo "$ac_i" | + sed 's/\$U\././;s/\.o$//;s/\.obj$//'` + # 2. 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Disable this feature. + alias -g '${1+"$@"}'='"$@"' +elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then + set -o posix +fi +DUALCASE=1; export DUALCASE # for MKS sh + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# Work around bugs in pre-3.0 UWIN ksh. +$as_unset ENV MAIL MAILPATH +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +for as_var in \ + LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ + LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ + LC_TELEPHONE LC_TIME +do + if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then + eval $as_var=C; export $as_var + else + $as_unset $as_var + fi +done + +# Required to use basename. +if expr a : '\(a\)' >/dev/null 2>&1; then + as_expr=expr +else + as_expr=false +fi + +if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + + +# Name of the executable. +as_me=`$as_basename "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)$' \| \ + . : '\(.\)' 2>/dev/null || +echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; } + /^X\/\(\/\/\)$/{ s//\1/; q; } + /^X\/\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + + +# PATH needs CR, and LINENO needs CR and PATH. +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + + + as_lineno_1=$LINENO + as_lineno_2=$LINENO + as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null` + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x$as_lineno_3" = "x$as_lineno_2" || { + # Find who we are. 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" + fi + configure_input=$configure_input"Generated from `echo $ac_file_in | + sed 's,.*/,,'` by configure." + + # First look for the input files in the build tree, otherwise in the + # src tree. + ac_file_inputs=`IFS=: + for f in $ac_file_in; do + case $f in + -) echo $tmp/stdin ;; + [\\/$]*) + # Absolute (can't be DOS-style, as IFS=:) + test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + echo "$f";; + *) # Relative + if test -f "$f"; then + # Build tree + echo "$f" + elif test -f "$srcdir/$f"; then + # Source tree + echo "$srcdir/$f" + else + # /dev/null tree + { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + fi;; + esac + done` || { (exit 1); exit 1; } +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF + sed "$ac_vpsub +$extrasub +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s,@configure_input@,$configure_input,;t t +s,@srcdir@,$ac_srcdir,;t t +s,@abs_srcdir@,$ac_abs_srcdir,;t t +s,@top_srcdir@,$ac_top_srcdir,;t t +s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t +s,@builddir@,$ac_builddir,;t t +s,@abs_builddir@,$ac_abs_builddir,;t t +s,@top_builddir@,$ac_top_builddir,;t t +s,@abs_top_builddir@,$ac_abs_top_builddir,;t t +s,@INSTALL@,$ac_INSTALL,;t t +" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out + rm -f $tmp/stdin + if test x"$ac_file" != x-; then + mv $tmp/out $ac_file + else + cat $tmp/out + rm -f $tmp/out + fi + +done +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF + +# +# CONFIG_HEADER section. +# + +# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where +# NAME is the cpp macro being defined and VALUE is the value it is being given. +# +# ac_d sets the value in "#define NAME VALUE" lines. +ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)' +ac_dB='[ ].*$,\1#\2' +ac_dC=' ' +ac_dD=',;t' +# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE". +ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)' +ac_uB='$,\1#\2define\3' +ac_uC=' ' +ac_uD=',;t' + +for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue + # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in". + case $ac_file in + - | *:- | *:-:* ) # input from stdin + cat >$tmp/stdin + ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'` + ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;; + *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'` + ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;; + * ) ac_file_in=$ac_file.in ;; + esac + + test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5 +echo "$as_me: creating $ac_file" >&6;} + + # First look for the input files in the build tree, otherwise in the + # src tree. + ac_file_inputs=`IFS=: + for f in $ac_file_in; do + case $f in + -) echo $tmp/stdin ;; + [\\/$]*) + # Absolute (can't be DOS-style, as IFS=:) + test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + # Do quote $f, to prevent DOS paths from being IFS'd. + echo "$f";; + *) # Relative + if test -f "$f"; then + # Build tree + echo "$f" + elif test -f "$srcdir/$f"; then + # Source tree + echo "$srcdir/$f" + else + # /dev/null tree + { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + fi;; + esac + done` || { (exit 1); exit 1; } + # Remove the trailing spaces. + sed 's/[ ]*$//' $ac_file_inputs >$tmp/in + +_ACEOF + +# Transform confdefs.h into two sed scripts, `conftest.defines' and +# `conftest.undefs', that substitutes the proper values into +# config.h.in to produce config.h. The first handles `#define' +# templates, and the second `#undef' templates. +# And first: Protect against being on the right side of a sed subst in +# config.status. Protect against being in an unquoted here document +# in config.status. +rm -f conftest.defines conftest.undefs +# Using a here document instead of a string reduces the quoting nightmare. +# Putting comments in sed scripts is not portable. +# +# `end' is used to avoid that the second main sed command (meant for +# 0-ary CPP macros) applies to n-ary macro definitions. +# See the Autoconf documentation for `clear'. +cat >confdef2sed.sed <<\_ACEOF +s/[\\&,]/\\&/g +s,[\\$`],\\&,g +t clear +: clear +s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*\)\(([^)]*)\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp +t end +s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp +: end +_ACEOF +# If some macros were called several times there might be several times +# the same #defines, which is useless. Nevertheless, we may not want to +# sort them, since we want the *last* AC-DEFINE to be honored. +uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines +sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs +rm -f confdef2sed.sed + +# This sed command replaces #undef with comments. This is necessary, for +# example, in the case of _POSIX_SOURCE, which is predefined and required +# on some systems where configure will not decide to define it. +cat >>conftest.undefs <<\_ACEOF +s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */, +_ACEOF + +# Break up conftest.defines because some shells have a limit on the size +# of here documents, and old seds have small limits too (100 cmds). +echo ' # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS +echo ' if grep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS +echo ' # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS +echo ' :' >>$CONFIG_STATUS +rm -f conftest.tail +while grep . conftest.defines >/dev/null +do + # Write a limited-size here document to $tmp/defines.sed. + echo ' cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS + # Speed up: don't consider the non `#define' lines. + echo '/^[ ]*#[ ]*define/!b' >>$CONFIG_STATUS + # Work around the forget-to-reset-the-flag bug. + echo 't clr' >>$CONFIG_STATUS + echo ': clr' >>$CONFIG_STATUS + sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS + echo 'CEOF + sed -f $tmp/defines.sed $tmp/in >$tmp/out + rm -f $tmp/in + mv $tmp/out $tmp/in +' >>$CONFIG_STATUS + sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail + rm -f conftest.defines + mv conftest.tail conftest.defines +done +rm -f conftest.defines +echo ' fi # grep' >>$CONFIG_STATUS +echo >>$CONFIG_STATUS + +# Break up conftest.undefs because some shells have a limit on the size +# of here documents, and old seds have small limits too (100 cmds). +echo ' # Handle all the #undef templates' >>$CONFIG_STATUS +rm -f conftest.tail +while grep . conftest.undefs >/dev/null +do + # Write a limited-size here document to $tmp/undefs.sed. + echo ' cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS + # Speed up: don't consider the non `#undef' + echo '/^[ ]*#[ ]*undef/!b' >>$CONFIG_STATUS + # Work around the forget-to-reset-the-flag bug. + echo 't clr' >>$CONFIG_STATUS + echo ': clr' >>$CONFIG_STATUS + sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS + echo 'CEOF + sed -f $tmp/undefs.sed $tmp/in >$tmp/out + rm -f $tmp/in + mv $tmp/out $tmp/in +' >>$CONFIG_STATUS + sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail + rm -f conftest.undefs + mv conftest.tail conftest.undefs +done +rm -f conftest.undefs + +cat >>$CONFIG_STATUS <<\_ACEOF + # Let's still pretend it is `configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. 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So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || { (exit 1); exit 1; } +fi + diff --git a/contrib/libobjc/configure.ac b/contrib/libobjc/configure.ac new file mode 100644 index 0000000..fca4418 --- /dev/null +++ b/contrib/libobjc/configure.ac @@ -0,0 +1,296 @@ +# Process this file with autoconf to produce a configure script. +# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 +# 2005, 2006 Free Software Foundation, Inc. +# Originally contributed by Dave Love (d.love@dl.ac.uk). +# +#This file is part of GCC. +# +#GCC is free software; you can redistribute it and/or modify +#it under the terms of the GNU General Public License as published by +#the Free Software Foundation; either version 2, or (at your option) +#any later version. +# +#GCC is distributed in the hope that it will be useful, +#but WITHOUT ANY WARRANTY; without even the implied warranty of +#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +#GNU General Public License for more details. +# +#You should have received a copy of the GNU General Public License +#along with GCC; see the file COPYING. If not, write to +#the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +#02110-1301, USA. + +AC_PREREQ(2.59) +AC_INIT(package-unused, version-unused,, libobjc) +AC_CONFIG_SRCDIR([objc/objc.h]) +GCC_TOPLEV_SUBDIRS + +# We need the following definitions because AC_PROG_LIBTOOL relies on them +PACKAGE=libobjc +# Version is pulled out to make it a bit easier to change using sed. +VERSION=2:0:0 +AC_SUBST(VERSION) + +# This works around the fact that libtool configuration may change LD +# for this particular configuration, but some shells, instead of +# keeping the changes in LD private, export them just because LD is +# exported. +ORIGINAL_LD_FOR_MULTILIBS=$LD + +# ------- +# Options +# ------- + +# We use these options to decide which functions to include. +AC_ARG_WITH(target-subdir, +[ --with-target-subdir=SUBDIR + configuring in a subdirectory]) +AC_ARG_WITH(cross-host, +[ --with-cross-host=HOST configuring with a cross compiler]) + +AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) +AC_ARG_ENABLE(version-specific-runtime-libs, +[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], +[case "$enableval" in + yes) version_specific_libs=yes ;; + no) version_specific_libs=no ;; + *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; + esac], +[version_specific_libs=no]) +AC_MSG_RESULT($version_specific_libs) + +AC_ARG_ENABLE(objc-gc, +[ --enable-objc-gc enable the use of Boehm's garbage collector with + the GNU Objective-C runtime.], +[case $enable_objc_gc in + no) + OBJC_BOEHM_GC='' + OBJC_BOEHM_GC_INCLUDES='' + ;; + *) + OBJC_BOEHM_GC=libobjc_gc.la + OBJC_BOEHM_GC_INCLUDES='-I$(top_srcdir)/../boehm-gc/include -I../boehm-gc/include' + ;; +esac], +[OBJC_BOEHM_GC=''; OBJC_BOEHM_GC_INCLUDES='']) +AC_SUBST(OBJC_BOEHM_GC) +AC_SUBST(OBJC_BOEHM_GC_INCLUDES) + +# ----------- +# Directories +# ----------- + +# Find the rest of the source tree framework. +AM_ENABLE_MULTILIB(, ..) + +AC_CANONICAL_SYSTEM +ACX_NONCANONICAL_TARGET + +# Export source directory. +# These need to be absolute paths, yet at the same time need to +# canonicalize only relative paths, because then amd will not unmount +# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. +case $srcdir in + [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; + *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; +esac +AC_SUBST(glibcpp_srcdir) + +# Calculate toolexeclibdir +# Also toolexecdir, though it's only used in toolexeclibdir +case ${version_specific_libs} in + yes) + # Need the gcc compiler version to know where to install libraries + # and header files if --enable-version-specific-runtime-libs option + # is selected. + toolexecdir='$(libdir)/gcc/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' + ;; + no) + if test -n "$with_cross_host" && + test x"$with_cross_host" != x"no"; then + # Install a library built with a cross compiler in tooldir, not libdir. + toolexecdir='$(exec_prefix)/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/lib' + else + toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' + toolexeclibdir='$(libdir)' + fi + multi_os_directory=`$CC -print-multi-os-directory` + case $multi_os_directory in + .) ;; # Avoid trailing /. + *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; + esac + ;; +esac +AC_SUBST(toolexecdir) +AC_SUBST(toolexeclibdir) + +# Figure out if we want to name the include directory and the +# library name changes differently. +includedirname=include +libext= +case "${host}" in + *-darwin*) + # Darwin is the only target so far that needs a different include directory. + includedirname=include-gnu-runtime + libext=-gnu + ;; +esac +AC_SUBST(includedirname) +AC_SUBST(libext) + +AC_CONFIG_HEADERS(config.h) + +# -------- +# Programs +# -------- + +GCC_NO_EXECUTABLES + +# We must force CC to /not/ be a precious variable; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. +m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CC +m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) + +# extra LD Flags which are required for targets +case "${host}" in + *-darwin*) + # Darwin needs -single_module when linking libobjc + extra_ldflags_libobjc=-Wl,-single_module + ;; +esac +AC_SUBST(extra_ldflags_libobjc) + +AC_SUBST(CFLAGS) + +AC_CHECK_TOOL(AS, as) +AC_CHECK_TOOL(AR, ar) +AC_CHECK_TOOL(RANLIB, ranlib, :) +AC_PROG_INSTALL + +AM_MAINTAINER_MODE + +# Enable Win32 DLL on MS Windows - FIXME +AC_LIBTOOL_WIN32_DLL + +AC_PROG_LIBTOOL + +AM_PROG_CC_C_O + +AC_PROG_MAKE_SET + +# ------- +# Headers +# ------- + +# Sanity check for the cross-compilation case: +AC_CHECK_HEADER(stdio.h,:, + [AC_MSG_ERROR([Can't find stdio.h. +You must have a usable C system for the target already installed, at least +including headers and, preferably, the library, before you can configure +the Objective C runtime system. If necessary, install gcc now with +\`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) + +AC_HEADER_STDC + +AC_CHECK_HEADERS(sched.h) + +# ----------- +# Miscellanea +# ----------- + +AC_MSG_CHECKING([for thread model used by GCC]) +target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` +AC_MSG_RESULT([$target_thread_file]) + +if test $target_thread_file != single; then + AC_DEFINE(HAVE_GTHR_DEFAULT, 1, + [Define if the compiler has a thread header that is non single.]) +fi + + +AC_MSG_CHECKING([for exception model to use]) +AC_LANG_PUSH(C) +AC_ARG_ENABLE(sjlj-exceptions, + AS_HELP_STRING([--enable-sjlj-exceptions], + [force use of builtin_setjmp for exceptions]), +[:], +[dnl Botheration. Now we've got to detect the exception model. +dnl Link tests against libgcc.a are problematic since -- at least +dnl as of this writing -- we've not been given proper -L bits for +dnl single-tree newlib and libgloss. +dnl +dnl This is what AC_TRY_COMPILE would do if it didn't delete the +dnl conftest files before we got a change to grep them first. +cat > conftest.$ac_ext << EOF +[#]line __oline__ "configure" +@interface Frob +@end +@implementation Frob +@end +int proc(); +int foo() +{ + @try { + return proc(); + } + @catch (Frob* ex) { + return 0; + } +} +EOF +old_CFLAGS="$CFLAGS" +dnl work around that we don't have Objective-C support in autoconf +CFLAGS="-x objective-c -fgnu-runtime -fobjc-exceptions -S" +if AC_TRY_EVAL(ac_compile); then + if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then + enable_sjlj_exceptions=yes + elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then + enable_sjlj_exceptions=no + fi +fi +CFLAGS="$old_CFLAGS" +rm -f conftest*]) +if test x$enable_sjlj_exceptions = xyes; then + AC_DEFINE(SJLJ_EXCEPTIONS, 1, + [Define if the compiler is configured for setjmp/longjmp exceptions.]) + ac_exception_model_name=sjlj +elif test x$enable_sjlj_exceptions = xno; then + ac_exception_model_name="call frame" +else + AC_MSG_ERROR([unable to detect exception model]) +fi +AC_LANG_POP(C) +AC_MSG_RESULT($ac_exception_model_name) + +# ------ +# Output +# ------ + +AC_CONFIG_FILES([Makefile]) + +AC_CONFIG_COMMANDS([default], +[[if test -n "$CONFIG_FILES"; then + if test -n "${with_target_subdir}"; then + # FIXME: We shouldn't need to set ac_file + ac_file=Makefile + LD="${ORIGINAL_LD_FOR_MULTILIBS}" + . ${multi_basedir}/config-ml.in + fi +fi]], +[[srcdir=${srcdir} +host=${host} +target=${target} +with_target_subdir=${with_target_subdir} +with_multisubdir=${with_multisubdir} +ac_configure_args="--enable-multilib ${ac_configure_args}" +multi_basedir=${multi_basedir} +CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} +ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" +]]) + +AC_OUTPUT diff --git a/contrib/libobjc/encoding.c b/contrib/libobjc/encoding.c new file mode 100644 index 0000000..21a7858 --- /dev/null +++ b/contrib/libobjc/encoding.c @@ -0,0 +1,1083 @@ +/* Encoding of types for Objective C. + Copyright (C) 1993, 1995, 1996, 1997, 1998, 2000, 2002, 2004 + Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + Bitfield support by Ovidiu Predescu + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* FIXME: This file has no business including tm.h. */ + +#include "tconfig.h" +#include "coretypes.h" +#include "tm.h" +#include "objc/objc-api.h" +#include "objc/encoding.h" +#include <stdlib.h> + +#undef MAX +#define MAX(X, Y) \ + ({ typeof (X) __x = (X), __y = (Y); \ + (__x > __y ? __x : __y); }) + +#undef MIN +#define MIN(X, Y) \ + ({ typeof (X) __x = (X), __y = (Y); \ + (__x < __y ? __x : __y); }) + +#undef ROUND +#define ROUND(V, A) \ + ({ typeof (V) __v = (V); typeof (A) __a = (A); \ + __a * ((__v+__a - 1)/__a); }) + + +/* Various hacks for objc_layout_record. These are used by the target + macros. */ + +#define TREE_CODE(TYPE) *(TYPE) +#define TREE_TYPE(TREE) (TREE) + +#define RECORD_TYPE _C_STRUCT_B +#define UNION_TYPE _C_UNION_B +#define QUAL_UNION_TYPE _C_UNION_B +#define ARRAY_TYPE _C_ARY_B + +#define REAL_TYPE _C_DBL + +#define VECTOR_TYPE _C_VECTOR + +#define TYPE_FIELDS(TYPE) ({const char *_field = (TYPE)+1; \ + while (*_field != _C_STRUCT_E && *_field != _C_STRUCT_B \ + && *_field != _C_UNION_B && *_field++ != '=') \ + /* do nothing */; \ + _field;}) + +#define DECL_MODE(TYPE) *(TYPE) +#define TYPE_MODE(TYPE) *(TYPE) + +#define DFmode _C_DBL + +#define get_inner_array_type(TYPE) ({const char *_field = (TYPE); \ + while (*_field == _C_ARY_B)\ + {\ + while (isdigit ((unsigned char)*++_field))\ + ;\ + }\ + _field;}) + +/* Some ports (eg ARM) allow the structure size boundary to be + selected at compile-time. We override the normal definition with + one that has a constant value for this compilation. */ +#ifndef BITS_PER_UNIT +#define BITS_PER_UNIT 8 +#endif +#undef STRUCTURE_SIZE_BOUNDARY +#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (struct{char a;})) + +/* Some ROUND_TYPE_ALIGN macros use TARGET_foo, and consequently + target_flags. Define a dummy entry here to so we don't die. + We have to rename it because target_flags may already have been + declared extern. */ +#define target_flags not_target_flags +static int __attribute__ ((__unused__)) not_target_flags = 0; + +/* Some ROUND_TYPE_ALIGN use ALTIVEC_VECTOR_MODE (rs6000 darwin). + Define a dummy ALTIVEC_VECTOR_MODE so it will not die. */ +#undef ALTIVEC_VECTOR_MODE +#define ALTIVEC_VECTOR_MODE(MODE) (0) + + +/* FIXME: while this file has no business including tm.h, this + definitely has no business defining this macro but it + is only way around without really rewritting this file, + should look after the branch of 3.4 to fix this. */ +#define rs6000_special_round_type_align(STRUCT, COMPUTED, SPECIFIED) \ + ({ const char *_fields = TYPE_FIELDS (STRUCT); \ + ((_fields != 0 \ + && TYPE_MODE (TREE_CODE (TREE_TYPE (_fields)) == ARRAY_TYPE \ + ? get_inner_array_type (_fields) \ + : TREE_TYPE (_fields)) == DFmode) \ + ? MAX (MAX (COMPUTED, SPECIFIED), 64) \ + : MAX (COMPUTED, SPECIFIED));}) + +/* + return the size of an object specified by type +*/ + +int +objc_sizeof_type (const char *type) +{ + /* Skip the variable name if any */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + switch (*type) { + case _C_BOOL: + return sizeof (_Bool); + break; + + case _C_ID: + return sizeof (id); + break; + + case _C_CLASS: + return sizeof (Class); + break; + + case _C_SEL: + return sizeof (SEL); + break; + + case _C_CHR: + return sizeof (char); + break; + + case _C_UCHR: + return sizeof (unsigned char); + break; + + case _C_SHT: + return sizeof (short); + break; + + case _C_USHT: + return sizeof (unsigned short); + break; + + case _C_INT: + return sizeof (int); + break; + + case _C_UINT: + return sizeof (unsigned int); + break; + + case _C_LNG: + return sizeof (long); + break; + + case _C_ULNG: + return sizeof (unsigned long); + break; + + case _C_LNG_LNG: + return sizeof (long long); + break; + + case _C_ULNG_LNG: + return sizeof (unsigned long long); + break; + + case _C_FLT: + return sizeof (float); + break; + + case _C_DBL: + return sizeof (double); + break; + + case _C_VOID: + return sizeof (void); + break; + + case _C_PTR: + case _C_ATOM: + case _C_CHARPTR: + return sizeof (char *); + break; + + case _C_ARY_B: + { + int len = atoi (type + 1); + while (isdigit ((unsigned char)*++type)) + ; + return len * objc_aligned_size (type); + } + break; + + case _C_BFLD: + { + /* The new encoding of bitfields is: b 'position' 'type' 'size' */ + int position, size; + int startByte, endByte; + + position = atoi (type + 1); + while (isdigit ((unsigned char)*++type)) + ; + size = atoi (type + 1); + + startByte = position / BITS_PER_UNIT; + endByte = (position + size) / BITS_PER_UNIT; + return endByte - startByte; + } + + case _C_UNION_B: + case _C_STRUCT_B: + { + struct objc_struct_layout layout; + unsigned int size; + + objc_layout_structure (type, &layout); + while (objc_layout_structure_next_member (&layout)) + /* do nothing */ ; + objc_layout_finish_structure (&layout, &size, NULL); + + return size; + } + + case _C_COMPLEX: + { + type++; /* Skip after the 'j'. */ + switch (*type) + { + case _C_CHR: + return sizeof (_Complex char); + break; + + case _C_UCHR: + return sizeof (_Complex unsigned char); + break; + + case _C_SHT: + return sizeof (_Complex short); + break; + + case _C_USHT: + return sizeof (_Complex unsigned short); + break; + + case _C_INT: + return sizeof (_Complex int); + break; + + case _C_UINT: + return sizeof (_Complex unsigned int); + break; + + case _C_LNG: + return sizeof (_Complex long); + break; + + case _C_ULNG: + return sizeof (_Complex unsigned long); + break; + + case _C_LNG_LNG: + return sizeof (_Complex long long); + break; + + case _C_ULNG_LNG: + return sizeof (_Complex unsigned long long); + break; + + case _C_FLT: + return sizeof (_Complex float); + break; + + case _C_DBL: + return sizeof (_Complex double); + break; + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "unknown complex type %s\n", + type); + return 0; + } + } + } + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type); + return 0; + } + } +} + + +/* + Return the alignment of an object specified by type +*/ + +int +objc_alignof_type (const char *type) +{ + /* Skip the variable name if any */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + switch (*type) { + case _C_BOOL: + return __alignof__ (_Bool); + break; + + case _C_ID: + return __alignof__ (id); + break; + + case _C_CLASS: + return __alignof__ (Class); + break; + + case _C_SEL: + return __alignof__ (SEL); + break; + + case _C_CHR: + return __alignof__ (char); + break; + + case _C_UCHR: + return __alignof__ (unsigned char); + break; + + case _C_SHT: + return __alignof__ (short); + break; + + case _C_USHT: + return __alignof__ (unsigned short); + break; + + case _C_INT: + return __alignof__ (int); + break; + + case _C_UINT: + return __alignof__ (unsigned int); + break; + + case _C_LNG: + return __alignof__ (long); + break; + + case _C_ULNG: + return __alignof__ (unsigned long); + break; + + case _C_LNG_LNG: + return __alignof__ (long long); + break; + + case _C_ULNG_LNG: + return __alignof__ (unsigned long long); + break; + + case _C_FLT: + return __alignof__ (float); + break; + + case _C_DBL: + return __alignof__ (double); + break; + + case _C_PTR: + case _C_ATOM: + case _C_CHARPTR: + return __alignof__ (char *); + break; + + case _C_ARY_B: + while (isdigit ((unsigned char)*++type)) + /* do nothing */; + return objc_alignof_type (type); + + case _C_STRUCT_B: + case _C_UNION_B: + { + struct objc_struct_layout layout; + unsigned int align; + + objc_layout_structure (type, &layout); + while (objc_layout_structure_next_member (&layout)) + /* do nothing */; + objc_layout_finish_structure (&layout, NULL, &align); + + return align; + } + + + case _C_COMPLEX: + { + type++; /* Skip after the 'j'. */ + switch (*type) + { + case _C_CHR: + return __alignof__ (_Complex char); + break; + + case _C_UCHR: + return __alignof__ (_Complex unsigned char); + break; + + case _C_SHT: + return __alignof__ (_Complex short); + break; + + case _C_USHT: + return __alignof__ (_Complex unsigned short); + break; + + case _C_INT: + return __alignof__ (_Complex int); + break; + + case _C_UINT: + return __alignof__ (_Complex unsigned int); + break; + + case _C_LNG: + return __alignof__ (_Complex long); + break; + + case _C_ULNG: + return __alignof__ (_Complex unsigned long); + break; + + case _C_LNG_LNG: + return __alignof__ (_Complex long long); + break; + + case _C_ULNG_LNG: + return __alignof__ (_Complex unsigned long long); + break; + + case _C_FLT: + return __alignof__ (_Complex float); + break; + + case _C_DBL: + return __alignof__ (_Complex double); + break; + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "unknown complex type %s\n", + type); + return 0; + } + } + } + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type); + return 0; + } + } +} + +/* + The aligned size if the size rounded up to the nearest alignment. +*/ + +int +objc_aligned_size (const char *type) +{ + int size, align; + + /* Skip the variable name */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + size = objc_sizeof_type (type); + align = objc_alignof_type (type); + + return ROUND (size, align); +} + +/* + The size rounded up to the nearest integral of the wordsize, taken + to be the size of a void *. +*/ + +int +objc_promoted_size (const char *type) +{ + int size, wordsize; + + /* Skip the variable name */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + size = objc_sizeof_type (type); + wordsize = sizeof (void *); + + return ROUND (size, wordsize); +} + +/* + Skip type qualifiers. These may eventually precede typespecs + occurring in method prototype encodings. +*/ + +inline const char * +objc_skip_type_qualifiers (const char *type) +{ + while (*type == _C_CONST + || *type == _C_IN + || *type == _C_INOUT + || *type == _C_OUT + || *type == _C_BYCOPY + || *type == _C_BYREF + || *type == _C_ONEWAY + || *type == _C_GCINVISIBLE) + { + type += 1; + } + return type; +} + + +/* + Skip one typespec element. If the typespec is prepended by type + qualifiers, these are skipped as well. +*/ + +const char * +objc_skip_typespec (const char *type) +{ + /* Skip the variable name if any */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + type = objc_skip_type_qualifiers (type); + + switch (*type) { + + case _C_ID: + /* An id may be annotated by the actual type if it is known + with the @"ClassName" syntax */ + + if (*++type != '"') + return type; + else + { + while (*++type != '"') + /* do nothing */; + return type + 1; + } + + /* The following are one character type codes */ + case _C_CLASS: + case _C_SEL: + case _C_CHR: + case _C_UCHR: + case _C_CHARPTR: + case _C_ATOM: + case _C_SHT: + case _C_USHT: + case _C_INT: + case _C_UINT: + case _C_LNG: + case _C_BOOL: + case _C_ULNG: + case _C_LNG_LNG: + case _C_ULNG_LNG: + case _C_FLT: + case _C_DBL: + case _C_VOID: + case _C_UNDEF: + return ++type; + break; + + case _C_COMPLEX: + return type + 2; + break; + + case _C_ARY_B: + /* skip digits, typespec and closing ']' */ + + while (isdigit ((unsigned char)*++type)) + ; + type = objc_skip_typespec (type); + if (*type == _C_ARY_E) + return ++type; + else + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "bad array type %s\n", type); + return 0; + } + + case _C_BFLD: + /* The new encoding of bitfields is: b 'position' 'type' 'size' */ + while (isdigit ((unsigned char)*++type)) + ; /* skip position */ + while (isdigit ((unsigned char)*++type)) + ; /* skip type and size */ + return type; + + case _C_STRUCT_B: + /* skip name, and elements until closing '}' */ + + while (*type != _C_STRUCT_E && *type++ != '=') + ; + while (*type != _C_STRUCT_E) + { + type = objc_skip_typespec (type); + } + return ++type; + + case _C_UNION_B: + /* skip name, and elements until closing ')' */ + + while (*type != _C_UNION_E && *type++ != '=') + ; + while (*type != _C_UNION_E) + { + type = objc_skip_typespec (type); + } + return ++type; + + case _C_PTR: + /* Just skip the following typespec */ + + return objc_skip_typespec (++type); + + default: + { + objc_error (nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type); + return 0; + } + } +} + +/* + Skip an offset as part of a method encoding. This is prepended by a + '+' if the argument is passed in registers. +*/ +inline const char * +objc_skip_offset (const char *type) +{ + if (*type == '+') + type++; + while (isdigit ((unsigned char) *++type)) + ; + return type; +} + +/* + Skip an argument specification of a method encoding. +*/ +const char * +objc_skip_argspec (const char *type) +{ + type = objc_skip_typespec (type); + type = objc_skip_offset (type); + return type; +} + +/* + Return the number of arguments that the method MTH expects. + Note that all methods need two implicit arguments `self' and + `_cmd'. +*/ +int +method_get_number_of_arguments (struct objc_method *mth) +{ + int i = 0; + const char *type = mth->method_types; + while (*type) + { + type = objc_skip_argspec (type); + i += 1; + } + return i - 1; +} + +/* + Return the size of the argument block needed on the stack to invoke + the method MTH. This may be zero, if all arguments are passed in + registers. +*/ + +int +method_get_sizeof_arguments (struct objc_method *mth) +{ + const char *type = objc_skip_typespec (mth->method_types); + return atoi (type); +} + +/* + Return a pointer to the next argument of ARGFRAME. type points to + the last argument. Typical use of this look like: + + { + char *datum, *type; + for (datum = method_get_first_argument (method, argframe, &type); + datum; datum = method_get_next_argument (argframe, &type)) + { + unsigned flags = objc_get_type_qualifiers (type); + type = objc_skip_type_qualifiers (type); + if (*type != _C_PTR) + [portal encodeData: datum ofType: type]; + else + { + if ((flags & _F_IN) == _F_IN) + [portal encodeData: *(char **) datum ofType: ++type]; + } + } + } +*/ + +char * +method_get_next_argument (arglist_t argframe, const char **type) +{ + const char *t = objc_skip_argspec (*type); + + if (*t == '\0') + return 0; + + *type = t; + t = objc_skip_typespec (t); + + if (*t == '+') + return argframe->arg_regs + atoi (++t); + else + return argframe->arg_ptr + atoi (t); +} + +/* + Return a pointer to the value of the first argument of the method + described in M with the given argumentframe ARGFRAME. The type + is returned in TYPE. type must be passed to successive calls of + method_get_next_argument. +*/ +char * +method_get_first_argument (struct objc_method *m, + arglist_t argframe, + const char **type) +{ + *type = m->method_types; + return method_get_next_argument (argframe, type); +} + +/* + Return a pointer to the ARGth argument of the method + M from the frame ARGFRAME. The type of the argument + is returned in the value-result argument TYPE +*/ + +char * +method_get_nth_argument (struct objc_method *m, + arglist_t argframe, int arg, + const char **type) +{ + const char *t = objc_skip_argspec (m->method_types); + + if (arg > method_get_number_of_arguments (m)) + return 0; + + while (arg--) + t = objc_skip_argspec (t); + + *type = t; + t = objc_skip_typespec (t); + + if (*t == '+') + return argframe->arg_regs + atoi (++t); + else + return argframe->arg_ptr + atoi (t); +} + +unsigned +objc_get_type_qualifiers (const char *type) +{ + unsigned res = 0; + BOOL flag = YES; + + while (flag) + switch (*type++) + { + case _C_CONST: res |= _F_CONST; break; + case _C_IN: res |= _F_IN; break; + case _C_INOUT: res |= _F_INOUT; break; + case _C_OUT: res |= _F_OUT; break; + case _C_BYCOPY: res |= _F_BYCOPY; break; + case _C_BYREF: res |= _F_BYREF; break; + case _C_ONEWAY: res |= _F_ONEWAY; break; + case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break; + default: flag = NO; + } + + return res; +} + + +/* The following three functions can be used to determine how a + structure is laid out by the compiler. For example: + + struct objc_struct_layout layout; + int i; + + objc_layout_structure (type, &layout); + while (objc_layout_structure_next_member (&layout)) + { + int position, align; + const char *type; + + objc_layout_structure_get_info (&layout, &position, &align, &type); + printf ("element %d has offset %d, alignment %d\n", + i++, position, align); + } + + These functions are used by objc_sizeof_type and objc_alignof_type + functions to compute the size and alignment of structures. The + previous method of computing the size and alignment of a structure + was not working on some architectures, particulary on AIX, and in + the presence of bitfields inside the structure. */ +void +objc_layout_structure (const char *type, + struct objc_struct_layout *layout) +{ + const char *ntype; + + if (*type != _C_UNION_B && *type != _C_STRUCT_B) + { + objc_error (nil, OBJC_ERR_BAD_TYPE, + "record (or union) type expected in objc_layout_structure, got %s\n", + type); + } + + type ++; + layout->original_type = type; + + /* Skip "<name>=" if any. Avoid embedded structures and unions. */ + ntype = type; + while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B + && *ntype++ != '=') + /* do nothing */; + + /* If there's a "<name>=", ntype - 1 points to '='; skip the the name */ + if (*(ntype - 1) == '=') + type = ntype; + + layout->type = type; + layout->prev_type = NULL; + layout->record_size = 0; + layout->record_align = BITS_PER_UNIT; + + layout->record_align = MAX (layout->record_align, STRUCTURE_SIZE_BOUNDARY); +} + + +BOOL +objc_layout_structure_next_member (struct objc_struct_layout *layout) +{ + register int desired_align = 0; + + /* The following are used only if the field is a bitfield */ + register const char *bfld_type = 0; + register int bfld_type_size, bfld_type_align = 0, bfld_field_size = 0; + + /* The current type without the type qualifiers */ + const char *type; + BOOL unionp = layout->original_type[-1] == _C_UNION_B; + + /* Add the size of the previous field to the size of the record. */ + if (layout->prev_type) + { + type = objc_skip_type_qualifiers (layout->prev_type); + if (unionp) + layout->record_size = MAX (layout->record_size, + objc_sizeof_type (type) * BITS_PER_UNIT); + + else if (*type != _C_BFLD) + layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT; + else { + /* Get the bitfield's type */ + for (bfld_type = type + 1; + isdigit ((unsigned char)*bfld_type); + bfld_type++) + /* do nothing */; + + bfld_type_size = objc_sizeof_type (bfld_type) * BITS_PER_UNIT; + bfld_type_align = objc_alignof_type (bfld_type) * BITS_PER_UNIT; + bfld_field_size = atoi (objc_skip_typespec (bfld_type)); + layout->record_size += bfld_field_size; + } + } + + if ((unionp && *layout->type == _C_UNION_E) + || (!unionp && *layout->type == _C_STRUCT_E)) + return NO; + + /* Skip the variable name if any */ + if (*layout->type == '"') + { + for (layout->type++; *layout->type++ != '"';) + /* do nothing */; + } + + type = objc_skip_type_qualifiers (layout->type); + + if (*type != _C_BFLD) + desired_align = objc_alignof_type (type) * BITS_PER_UNIT; + else + { + desired_align = 1; + /* Skip the bitfield's offset */ + for (bfld_type = type + 1; + isdigit ((unsigned char) *bfld_type); + bfld_type++) + /* do nothing */; + + bfld_type_size = objc_sizeof_type (bfld_type) * BITS_PER_UNIT; + bfld_type_align = objc_alignof_type (bfld_type) * BITS_PER_UNIT; + bfld_field_size = atoi (objc_skip_typespec (bfld_type)); + } + +#ifdef BIGGEST_FIELD_ALIGNMENT + desired_align = MIN (desired_align, BIGGEST_FIELD_ALIGNMENT); +#endif +#ifdef ADJUST_FIELD_ALIGN + desired_align = ADJUST_FIELD_ALIGN (type, desired_align); +#endif + + /* Record must have at least as much alignment as any field. + Otherwise, the alignment of the field within the record + is meaningless. */ +#ifndef PCC_BITFIELD_TYPE_MATTERS + layout->record_align = MAX (layout->record_align, desired_align); +#else /* PCC_BITFIELD_TYPE_MATTERS */ + if (*type == _C_BFLD) + { + /* For these machines, a zero-length field does not + affect the alignment of the structure as a whole. + It does, however, affect the alignment of the next field + within the structure. */ + if (bfld_field_size) + layout->record_align = MAX (layout->record_align, desired_align); + else + desired_align = objc_alignof_type (bfld_type) * BITS_PER_UNIT; + + /* A named bit field of declared type `int' + forces the entire structure to have `int' alignment. + Q1: How is encoded this thing and how to check for it? + Q2: How to determine maximum_field_alignment at runtime? */ + +/* if (DECL_NAME (field) != 0) */ + { + int type_align = bfld_type_align; +#if 0 + if (maximum_field_alignment != 0) + type_align = MIN (type_align, maximum_field_alignment); + else if (DECL_PACKED (field)) + type_align = MIN (type_align, BITS_PER_UNIT); +#endif + + layout->record_align = MAX (layout->record_align, type_align); + } + } + else + layout->record_align = MAX (layout->record_align, desired_align); +#endif /* PCC_BITFIELD_TYPE_MATTERS */ + + /* Does this field automatically have alignment it needs + by virtue of the fields that precede it and the record's + own alignment? */ + + if (*type == _C_BFLD) + layout->record_size = atoi (type + 1); + else if (layout->record_size % desired_align != 0) + { + /* No, we need to skip space before this field. + Bump the cumulative size to multiple of field alignment. */ + layout->record_size = ROUND (layout->record_size, desired_align); + } + + /* Jump to the next field in record. */ + + layout->prev_type = layout->type; + layout->type = objc_skip_typespec (layout->type); /* skip component */ + + return YES; +} + + +void objc_layout_finish_structure (struct objc_struct_layout *layout, + unsigned int *size, + unsigned int *align) +{ + BOOL unionp = layout->original_type[-1] == _C_UNION_B; + if (layout->type + && ((!unionp && *layout->type == _C_STRUCT_E) + || (unionp && *layout->type == _C_UNION_E))) + { + /* Work out the alignment of the record as one expression and store + in the record type. Round it up to a multiple of the record's + alignment. */ +#if defined (ROUND_TYPE_ALIGN) && ! defined (__sparc__) + layout->record_align = ROUND_TYPE_ALIGN (layout->original_type-1, + 1, + layout->record_align); +#else + layout->record_align = MAX (1, layout->record_align); +#endif + +#ifdef ROUND_TYPE_SIZE + layout->record_size = ROUND_TYPE_SIZE (layout->original_type, + layout->record_size, + layout->record_align); +#else + /* Round the size up to be a multiple of the required alignment */ + layout->record_size = ROUND (layout->record_size, layout->record_align); +#endif + + layout->type = NULL; + } + if (size) + *size = layout->record_size / BITS_PER_UNIT; + if (align) + *align = layout->record_align / BITS_PER_UNIT; +} + + +void objc_layout_structure_get_info (struct objc_struct_layout *layout, + unsigned int *offset, + unsigned int *align, + const char **type) +{ + if (offset) + *offset = layout->record_size / BITS_PER_UNIT; + if (align) + *align = layout->record_align / BITS_PER_UNIT; + if (type) + *type = layout->prev_type; +} diff --git a/contrib/libobjc/exception.c b/contrib/libobjc/exception.c new file mode 100644 index 0000000..e1de2ae --- /dev/null +++ b/contrib/libobjc/exception.c @@ -0,0 +1,376 @@ +/* The implementation of exception handling primitives for Objective-C. + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#include <stdlib.h> +#include "config.h" +#include "objc/objc-api.h" +#include "unwind.h" +#include "unwind-pe.h" + + +/* This is the exception class we report -- "GNUCOBJC". */ +#define __objc_exception_class \ + ((((((((_Unwind_Exception_Class) 'G' \ + << 8 | (_Unwind_Exception_Class) 'N') \ + << 8 | (_Unwind_Exception_Class) 'U') \ + << 8 | (_Unwind_Exception_Class) 'C') \ + << 8 | (_Unwind_Exception_Class) 'O') \ + << 8 | (_Unwind_Exception_Class) 'B') \ + << 8 | (_Unwind_Exception_Class) 'J') \ + << 8 | (_Unwind_Exception_Class) 'C') + +/* This is the object that is passed around by the Objective C runtime + to represent the exception in flight. */ + +struct ObjcException +{ + /* This bit is needed in order to interact with the unwind runtime. */ + struct _Unwind_Exception base; + + /* The actual object we want to throw. */ + id value; + + /* Cache some internal unwind data between phase 1 and phase 2. */ + _Unwind_Ptr landingPad; + int handlerSwitchValue; +}; + + + +struct lsda_header_info +{ + _Unwind_Ptr Start; + _Unwind_Ptr LPStart; + _Unwind_Ptr ttype_base; + const unsigned char *TType; + const unsigned char *action_table; + unsigned char ttype_encoding; + unsigned char call_site_encoding; +}; + +static const unsigned char * +parse_lsda_header (struct _Unwind_Context *context, const unsigned char *p, + struct lsda_header_info *info) +{ + _Unwind_Word tmp; + unsigned char lpstart_encoding; + + info->Start = (context ? _Unwind_GetRegionStart (context) : 0); + + /* Find @LPStart, the base to which landing pad offsets are relative. */ + lpstart_encoding = *p++; + if (lpstart_encoding != DW_EH_PE_omit) + p = read_encoded_value (context, lpstart_encoding, p, &info->LPStart); + else + info->LPStart = info->Start; + + /* Find @TType, the base of the handler and exception spec type data. */ + info->ttype_encoding = *p++; + if (info->ttype_encoding != DW_EH_PE_omit) + { + p = read_uleb128 (p, &tmp); + info->TType = p + tmp; + } + else + info->TType = 0; + + /* The encoding and length of the call-site table; the action table + immediately follows. */ + info->call_site_encoding = *p++; + p = read_uleb128 (p, &tmp); + info->action_table = p + tmp; + + return p; +} + +static Class +get_ttype_entry (struct lsda_header_info *info, _Unwind_Word i) +{ + _Unwind_Ptr ptr; + + i *= size_of_encoded_value (info->ttype_encoding); + read_encoded_value_with_base (info->ttype_encoding, info->ttype_base, + info->TType - i, &ptr); + + /* NULL ptr means catch-all. */ + if (ptr) + return objc_get_class ((const char *) ptr); + else + return 0; +} + +/* Like unto the method of the same name on Object, but takes an id. */ +/* ??? Does this bork the meta-type system? Can/should we look up an + isKindOf method on the id? */ + +static int +isKindOf (id value, Class target) +{ + Class c; + + /* NULL target is catch-all. */ + if (target == 0) + return 1; + + for (c = value->class_pointer; c; c = class_get_super_class (c)) + if (c == target) + return 1; + return 0; +} + +/* Using a different personality function name causes link failures + when trying to mix code using different exception handling models. */ +#ifdef SJLJ_EXCEPTIONS +#define PERSONALITY_FUNCTION __gnu_objc_personality_sj0 +#define __builtin_eh_return_data_regno(x) x +#else +#define PERSONALITY_FUNCTION __gnu_objc_personality_v0 +#endif + +_Unwind_Reason_Code +PERSONALITY_FUNCTION (int version, + _Unwind_Action actions, + _Unwind_Exception_Class exception_class, + struct _Unwind_Exception *ue_header, + struct _Unwind_Context *context) +{ + struct ObjcException *xh = (struct ObjcException *) ue_header; + + struct lsda_header_info info; + const unsigned char *language_specific_data; + const unsigned char *action_record; + const unsigned char *p; + _Unwind_Ptr landing_pad, ip; + int handler_switch_value; + int saw_cleanup = 0, saw_handler; + void *return_object; + + /* Interface version check. */ + if (version != 1) + return _URC_FATAL_PHASE1_ERROR; + + /* Shortcut for phase 2 found handler for domestic exception. */ + if (actions == (_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME) + && exception_class == __objc_exception_class) + { + handler_switch_value = xh->handlerSwitchValue; + landing_pad = xh->landingPad; + goto install_context; + } + + language_specific_data = (const unsigned char *) + _Unwind_GetLanguageSpecificData (context); + + /* If no LSDA, then there are no handlers or cleanups. */ + if (! language_specific_data) + return _URC_CONTINUE_UNWIND; + + /* Parse the LSDA header. */ + p = parse_lsda_header (context, language_specific_data, &info); + info.ttype_base = base_of_encoded_value (info.ttype_encoding, context); + ip = _Unwind_GetIP (context) - 1; + landing_pad = 0; + action_record = 0; + handler_switch_value = 0; + +#ifdef SJLJ_EXCEPTIONS + /* The given "IP" is an index into the call-site table, with two + exceptions -- -1 means no-action, and 0 means terminate. But + since we're using uleb128 values, we've not got random access + to the array. */ + if ((int) ip < 0) + return _URC_CONTINUE_UNWIND; + else + { + _Unwind_Word cs_lp, cs_action; + do + { + p = read_uleb128 (p, &cs_lp); + p = read_uleb128 (p, &cs_action); + } + while (--ip); + + /* Can never have null landing pad for sjlj -- that would have + been indicated by a -1 call site index. */ + landing_pad = cs_lp + 1; + if (cs_action) + action_record = info.action_table + cs_action - 1; + goto found_something; + } +#else + /* Search the call-site table for the action associated with this IP. */ + while (p < info.action_table) + { + _Unwind_Ptr cs_start, cs_len, cs_lp; + _Unwind_Word cs_action; + + /* Note that all call-site encodings are "absolute" displacements. */ + p = read_encoded_value (0, info.call_site_encoding, p, &cs_start); + p = read_encoded_value (0, info.call_site_encoding, p, &cs_len); + p = read_encoded_value (0, info.call_site_encoding, p, &cs_lp); + p = read_uleb128 (p, &cs_action); + + /* The table is sorted, so if we've passed the ip, stop. */ + if (ip < info.Start + cs_start) + p = info.action_table; + else if (ip < info.Start + cs_start + cs_len) + { + if (cs_lp) + landing_pad = info.LPStart + cs_lp; + if (cs_action) + action_record = info.action_table + cs_action - 1; + goto found_something; + } + } +#endif /* SJLJ_EXCEPTIONS */ + + /* If ip is not present in the table, C++ would call terminate. */ + /* ??? As with Java, it's perhaps better to tweek the LSDA to + that no-action is mapped to no-entry. */ + return _URC_CONTINUE_UNWIND; + + found_something: + saw_cleanup = 0; + saw_handler = 0; + + if (landing_pad == 0) + { + /* If ip is present, and has a null landing pad, there are + no cleanups or handlers to be run. */ + } + else if (action_record == 0) + { + /* If ip is present, has a non-null landing pad, and a null + action table offset, then there are only cleanups present. + Cleanups use a zero switch value, as set above. */ + saw_cleanup = 1; + } + else + { + /* Otherwise we have a catch handler. */ + _Unwind_Sword ar_filter, ar_disp; + + while (1) + { + p = action_record; + p = read_sleb128 (p, &ar_filter); + read_sleb128 (p, &ar_disp); + + if (ar_filter == 0) + { + /* Zero filter values are cleanups. */ + saw_cleanup = 1; + } + + /* During forced unwinding, we only run cleanups. With a + foreign exception class, we have no class info to match. */ + else if ((actions & _UA_FORCE_UNWIND) + || exception_class != __objc_exception_class) + ; + + else if (ar_filter > 0) + { + /* Positive filter values are handlers. */ + + Class catch_type = get_ttype_entry (&info, ar_filter); + + if (isKindOf (xh->value, catch_type)) + { + handler_switch_value = ar_filter; + saw_handler = 1; + break; + } + } + else + { + /* Negative filter values are exception specifications, + which Objective-C does not use. */ + abort (); + } + + if (ar_disp == 0) + break; + action_record = p + ar_disp; + } + } + + if (! saw_handler && ! saw_cleanup) + return _URC_CONTINUE_UNWIND; + + if (actions & _UA_SEARCH_PHASE) + { + if (!saw_handler) + return _URC_CONTINUE_UNWIND; + + /* For domestic exceptions, we cache data from phase 1 for phase 2. */ + if (exception_class == __objc_exception_class) + { + xh->handlerSwitchValue = handler_switch_value; + xh->landingPad = landing_pad; + } + return _URC_HANDLER_FOUND; + } + + install_context: + if (saw_cleanup == 0) + { + return_object = xh->value; + if (!(actions & _UA_SEARCH_PHASE)) + _Unwind_DeleteException(&xh->base); + } + + _Unwind_SetGR (context, __builtin_eh_return_data_regno (0), + __builtin_extend_pointer (saw_cleanup ? xh : return_object)); + _Unwind_SetGR (context, __builtin_eh_return_data_regno (1), + handler_switch_value); + _Unwind_SetIP (context, landing_pad); + return _URC_INSTALL_CONTEXT; +} + +static void +__objc_exception_cleanup (_Unwind_Reason_Code code __attribute__((unused)), + struct _Unwind_Exception *exc) +{ + free (exc); +} + +void +objc_exception_throw (id value) +{ + struct ObjcException *header = calloc (1, sizeof (*header)); + header->base.exception_class = __objc_exception_class; + header->base.exception_cleanup = __objc_exception_cleanup; + header->value = value; + +#ifdef SJLJ_EXCEPTIONS + _Unwind_SjLj_RaiseException (&header->base); +#else + _Unwind_RaiseException (&header->base); +#endif + + /* Some sort of unwinding error. */ + abort (); +} diff --git a/contrib/libobjc/gc.c b/contrib/libobjc/gc.c new file mode 100644 index 0000000..5101999 --- /dev/null +++ b/contrib/libobjc/gc.c @@ -0,0 +1,454 @@ +/* Basic data types for Objective C. + Copyright (C) 1998, 2002, 2004, 2005, 2006 Free Software Foundation, Inc. + Contributed by Ovidiu Predescu. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#include "tconfig.h" +#include "objc/objc.h" +#include "objc/encoding.h" + +#include <assert.h> +#include <string.h> +#include <stdlib.h> + +#if OBJC_WITH_GC + +#include <gc.h> +#include <limits.h> + +/* gc_typed.h uses the following but doesn't declare them */ +typedef GC_word word; +typedef GC_signed_word signed_word; +#define BITS_PER_WORD (CHAR_BIT * sizeof (word)) + +#include <gc_typed.h> + +/* The following functions set up in `mask` the corresponding pointers. + The offset is incremented with the size of the type. */ + +#define ROUND(V, A) \ + ({ typeof (V) __v = (V); typeof (A) __a = (A); \ + __a * ((__v+__a - 1)/__a); }) + +#define SET_BIT_FOR_OFFSET(mask, offset) \ + GC_set_bit (mask, offset / sizeof (void *)) + +/* Some prototypes */ +static void +__objc_gc_setup_struct (GC_bitmap mask, const char *type, int offset); +static void +__objc_gc_setup_union (GC_bitmap mask, const char *type, int offset); + + +static void +__objc_gc_setup_array (GC_bitmap mask, const char *type, int offset) +{ + int i, len = atoi (type + 1); + + while (isdigit (*++type)) + /* do nothing */; /* skip the size of the array */ + + switch (*type) { + case _C_ARY_B: + for (i = 0; i < len; i++) + __objc_gc_setup_array (mask, type, offset); + break; + + case _C_STRUCT_B: + for (i = 0; i < len; i++) + __objc_gc_setup_struct (mask, type, offset); + break; + + case _C_UNION_B: + for (i = 0; i < len; i++) + __objc_gc_setup_union (mask, type, offset); + break; + + default: + break; + } +} + +static void +__objc_gc_setup_struct (GC_bitmap mask, const char *type, int offset) +{ + struct objc_struct_layout layout; + unsigned int position; + const char *mtype; + + objc_layout_structure (type, &layout); + + while (objc_layout_structure_next_member (&layout)) + { + BOOL gc_invisible = NO; + + objc_layout_structure_get_info (&layout, &position, NULL, &mtype); + + /* Skip the variable name */ + if (*mtype == '"') + { + for (mtype++; *mtype++ != '"';) + /* do nothing */; + } + + if (*mtype == _C_GCINVISIBLE) + { + gc_invisible = YES; + mtype++; + } + + /* Add to position the offset of this structure */ + position += offset; + + switch (*mtype) { + case _C_ID: + case _C_CLASS: + case _C_SEL: + case _C_PTR: + case _C_CHARPTR: + case _C_ATOM: + if (! gc_invisible) + SET_BIT_FOR_OFFSET (mask, position); + break; + + case _C_ARY_B: + __objc_gc_setup_array (mask, mtype, position); + break; + + case _C_STRUCT_B: + __objc_gc_setup_struct (mask, mtype, position); + break; + + case _C_UNION_B: + __objc_gc_setup_union (mask, mtype, position); + break; + + default: + break; + } + } +} + +static void +__objc_gc_setup_union (GC_bitmap mask, const char *type, int offset) +{ + /* Sub-optimal, quick implementation: assume the union is made of + pointers, set up the mask accordingly. */ + + int i, size, align; + + /* Skip the variable name */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + size = objc_sizeof_type (type); + align = objc_alignof_type (type); + + offset = ROUND (offset, align); + for (i = 0; i < size; i += sizeof (void *)) + { + SET_BIT_FOR_OFFSET (mask, offset); + offset += sizeof (void *); + } +} + + +/* Iterates over the types in the structure that represents the class + encoding and sets the bits in mask according to each ivar type. */ +static void +__objc_gc_type_description_from_type (GC_bitmap mask, const char *type) +{ + struct objc_struct_layout layout; + unsigned int offset, align; + const char *ivar_type; + + objc_layout_structure (type, &layout); + + while (objc_layout_structure_next_member (&layout)) + { + BOOL gc_invisible = NO; + + objc_layout_structure_get_info (&layout, &offset, &align, &ivar_type); + + /* Skip the variable name */ + if (*ivar_type == '"') + { + for (ivar_type++; *ivar_type++ != '"';) + /* do nothing */; + } + + if (*ivar_type == _C_GCINVISIBLE) + { + gc_invisible = YES; + ivar_type++; + } + + switch (*ivar_type) { + case _C_ID: + case _C_CLASS: + case _C_SEL: + case _C_PTR: + case _C_CHARPTR: + if (! gc_invisible) + SET_BIT_FOR_OFFSET (mask, offset); + break; + + case _C_ARY_B: + __objc_gc_setup_array (mask, ivar_type, offset); + break; + + case _C_STRUCT_B: + __objc_gc_setup_struct (mask, ivar_type, offset); + break; + + case _C_UNION_B: + __objc_gc_setup_union (mask, ivar_type, offset); + break; + + default: + break; + } + } +} + +/* Computes in *type the full type encoding of this class including + its super classes. '*size' gives the total number of bytes allocated + into *type, '*current' the number of bytes used so far by the + encoding. */ +static void +__objc_class_structure_encoding (Class class, char **type, int *size, + int *current) +{ + int i, ivar_count; + struct objc_ivar_list *ivars; + + if (! class) + { + strcat (*type, "{"); + (*current)++; + return; + } + + /* Add the type encodings of the super classes */ + __objc_class_structure_encoding (class->super_class, type, size, current); + + ivars = class->ivars; + if (! ivars) + return; + + ivar_count = ivars->ivar_count; + + for (i = 0; i < ivar_count; i++) + { + struct objc_ivar *ivar = &(ivars->ivar_list[i]); + const char *ivar_type = ivar->ivar_type; + int len = strlen (ivar_type); + + if (*current + len + 1 >= *size) + { + /* Increase the size of the encoding string so that it + contains this ivar's type. */ + *size = ROUND (*current + len + 1, 10); + *type = objc_realloc (*type, *size); + } + strcat (*type + *current, ivar_type); + *current += len; + } +} + + +/* Allocates the memory that will hold the type description for class + and calls the __objc_class_structure_encoding that generates this + value. */ +void +__objc_generate_gc_type_description (Class class) +{ + GC_bitmap mask; + int bits_no, size; + int type_size = 10, current; + char *class_structure_type; + + if (! CLS_ISCLASS (class)) + return; + + /* We have to create a mask in which each bit counts for a pointer member. + We take into consideration all the non-pointer instance variables and we + round them up to the alignment. */ + + /* The number of bits in the mask is the size of an instance in bytes divided + by the size of a pointer. */ + bits_no = (ROUND (class_get_instance_size (class), sizeof (void *)) + / sizeof (void *)); + size = ROUND (bits_no, BITS_PER_WORD) / BITS_PER_WORD; + mask = objc_atomic_malloc (size * sizeof (int)); + memset (mask, 0, size * sizeof (int)); + + class_structure_type = objc_atomic_malloc (type_size); + *class_structure_type = current = 0; + __objc_class_structure_encoding (class, &class_structure_type, + &type_size, ¤t); + if (current + 1 == type_size) + class_structure_type = objc_realloc (class_structure_type, ++type_size); + strcat (class_structure_type + current, "}"); +#ifdef DEBUG + printf ("type description for '%s' is %s\n", class->name, class_structure_type); +#endif + + __objc_gc_type_description_from_type (mask, class_structure_type); + objc_free (class_structure_type); + +#ifdef DEBUG + printf (" mask for '%s', type '%s' (bits %d, mask size %d) is:", + class_structure_type, class->name, bits_no, size); + { + int i; + for (i = 0; i < size; i++) + printf (" %lx", mask[i]); + } + puts (""); +#endif + + class->gc_object_type = (void *) GC_make_descriptor (mask, bits_no); +} + + +/* Returns YES if type denotes a pointer type, NO otherwise */ +static inline BOOL +__objc_ivar_pointer (const char *type) +{ + type = objc_skip_type_qualifiers (type); + + return (*type == _C_ID + || *type == _C_CLASS + || *type == _C_SEL + || *type == _C_PTR + || *type == _C_CHARPTR + || *type == _C_ATOM); +} + + +/* Mark the instance variable whose name is given by ivarname as a + weak pointer (a pointer hidden to the garbage collector) if + gc_invisible is true. If gc_invisible is false it unmarks the + instance variable and makes it a normal pointer, visible to the + garbage collector. + + This operation only makes sense on instance variables that are + pointers. */ +void +class_ivar_set_gcinvisible (Class class, const char *ivarname, + BOOL gc_invisible) +{ + int i, ivar_count; + struct objc_ivar_list *ivars; + + if (! class || ! ivarname) + return; + + ivars = class->ivars; + if (! ivars) + return; + + ivar_count = ivars->ivar_count; + + for (i = 0; i < ivar_count; i++) + { + struct objc_ivar *ivar = &(ivars->ivar_list[i]); + const char *type; + + if (! ivar->ivar_name || strcmp (ivar->ivar_name, ivarname)) + continue; + + assert (ivar->ivar_type); + type = ivar->ivar_type; + + /* Skip the variable name */ + if (*type == '"') + { + for (type++; *type++ != '"';) + /* do nothing */; + } + + if (*type == _C_GCINVISIBLE) + { + char *new_type; + size_t len; + + if (gc_invisible || ! __objc_ivar_pointer (type)) + return; /* The type of the variable already matches the + requested gc_invisible type */ + + /* The variable is gc_invisible so we make it gc visible. */ + new_type = objc_atomic_malloc (strlen(ivar->ivar_type)); + len = (type - ivar->ivar_type); + memcpy (new_type, ivar->ivar_type, len); + new_type[len] = 0; + strcat (new_type, type + 1); + ivar->ivar_type = new_type; + } + else + { + char *new_type; + size_t len; + + if (! gc_invisible || ! __objc_ivar_pointer (type)) + return; /* The type of the variable already matches the + requested gc_invisible type */ + + /* The variable is gc visible so we make it gc_invisible. */ + new_type = objc_malloc (strlen(ivar->ivar_type) + 2); + len = (type - ivar->ivar_type); + memcpy (new_type, ivar->ivar_type, len); + new_type[len] = 0; + strcat (new_type, "!"); + strcat (new_type, type); + ivar->ivar_type = new_type; + } + + __objc_generate_gc_type_description (class); + return; + } + + /* Search the instance variable in the superclasses */ + class_ivar_set_gcinvisible (class->super_class, ivarname, gc_invisible); +} + +#else /* !OBJC_WITH_GC */ + +void +__objc_generate_gc_type_description (Class class __attribute__ ((__unused__))) +{ +} + +void class_ivar_set_gcinvisible (Class class __attribute__ ((__unused__)), + const char *ivarname __attribute__ ((__unused__)), + BOOL gc_invisible __attribute__ ((__unused__))) +{ +} + +#endif /* OBJC_WITH_GC */ diff --git a/contrib/libobjc/hash.c b/contrib/libobjc/hash.c new file mode 100644 index 0000000..969bd45 --- /dev/null +++ b/contrib/libobjc/hash.c @@ -0,0 +1,283 @@ +/* Hash tables for Objective C internal structures + Copyright (C) 1993, 1996, 1997, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#include "assert.h" + +#include "objc/hash.h" + +#include "objc/runtime.h" /* for DEBUG_PRINTF */ + +/* These two macros determine when a hash table is full and + by how much it should be expanded respectively. + + These equations are percentages. */ +#define FULLNESS(cache) \ + ((((cache)->size * 75) / 100) <= (cache)->used) +#define EXPANSION(cache) \ + ((cache)->size * 2) + +cache_ptr +objc_hash_new (unsigned int size, hash_func_type hash_func, + compare_func_type compare_func) +{ + cache_ptr cache; + + /* Pass me a value greater than 0 and a power of 2. */ + assert (size); + assert (! (size & (size - 1))); + + /* Allocate the cache structure. calloc insures + its initialization for default values. */ + cache = (cache_ptr) objc_calloc (1, sizeof (struct cache)); + assert (cache); + + /* Allocate the array of buckets for the cache. + calloc initializes all of the pointers to NULL. */ + cache->node_table + = (node_ptr *) objc_calloc (size, sizeof (node_ptr)); + assert (cache->node_table); + + cache->size = size; + + /* This should work for all processor architectures? */ + cache->mask = (size - 1); + + /* Store the hashing function so that codes can be computed. */ + cache->hash_func = hash_func; + + /* Store the function that compares hash keys to + determine if they are equal. */ + cache->compare_func = compare_func; + + return cache; +} + + +void +objc_hash_delete (cache_ptr cache) +{ + node_ptr node; + node_ptr next_node; + unsigned int i; + + /* Purge all key/value pairs from the table. */ + /* Step through the nodes one by one and remove every node WITHOUT + using objc_hash_next. this makes objc_hash_delete much more efficient. */ + for (i = 0;i < cache->size;i++) { + if ((node = cache->node_table[i])) { + /* an entry in the hash table has been found, now step through the + nodes next in the list and free them. */ + while ((next_node = node->next)) { + objc_hash_remove (cache,node->key); + node = next_node; + } + + objc_hash_remove (cache,node->key); + } + } + + /* Release the array of nodes and the cache itself. */ + objc_free(cache->node_table); + objc_free(cache); +} + + +void +objc_hash_add (cache_ptr *cachep, const void *key, void *value) +{ + size_t indx = (*(*cachep)->hash_func)(*cachep, key); + node_ptr node = (node_ptr) objc_calloc (1, sizeof (struct cache_node)); + + + assert (node); + + /* Initialize the new node. */ + node->key = key; + node->value = value; + node->next = (*cachep)->node_table[indx]; + + /* Debugging. + Check the list for another key. */ +#ifdef DEBUG + { node_ptr node1 = (*cachep)->node_table[indx]; + + while (node1) { + + assert (node1->key != key); + node1 = node1->next; + } + } +#endif + + /* Install the node as the first element on the list. */ + (*cachep)->node_table[indx] = node; + + /* Bump the number of entries in the cache. */ + ++(*cachep)->used; + + /* Check the hash table's fullness. We're going + to expand if it is above the fullness level. */ + if (FULLNESS (*cachep)) { + + /* The hash table has reached its fullness level. Time to + expand it. + + I'm using a slow method here but is built on other + primitive functions thereby increasing its + correctness. */ + node_ptr node1 = NULL; + cache_ptr new = objc_hash_new (EXPANSION (*cachep), + (*cachep)->hash_func, + (*cachep)->compare_func); + + DEBUG_PRINTF ("Expanding cache %#x from %d to %d\n", + (int) *cachep, (*cachep)->size, new->size); + + /* Copy the nodes from the first hash table to the new one. */ + while ((node1 = objc_hash_next (*cachep, node1))) + objc_hash_add (&new, node1->key, node1->value); + + /* Trash the old cache. */ + objc_hash_delete (*cachep); + + /* Return a pointer to the new hash table. */ + *cachep = new; + } +} + + +void +objc_hash_remove (cache_ptr cache, const void *key) +{ + size_t indx = (*cache->hash_func)(cache, key); + node_ptr node = cache->node_table[indx]; + + + /* We assume there is an entry in the table. Error if it is not. */ + assert (node); + + /* Special case. First element is the key/value pair to be removed. */ + if ((*cache->compare_func)(node->key, key)) { + cache->node_table[indx] = node->next; + objc_free(node); + } else { + + /* Otherwise, find the hash entry. */ + node_ptr prev = node; + BOOL removed = NO; + + do { + + if ((*cache->compare_func)(node->key, key)) { + prev->next = node->next, removed = YES; + objc_free(node); + } else + prev = node, node = node->next; + } while (! removed && node); + assert (removed); + } + + /* Decrement the number of entries in the hash table. */ + --cache->used; +} + + +node_ptr +objc_hash_next (cache_ptr cache, node_ptr node) +{ + /* If the scan is being started then reset the last node + visitied pointer and bucket index. */ + if (! node) + cache->last_bucket = 0; + + /* If there is a node visited last then check for another + entry in the same bucket; Otherwise step to the next bucket. */ + if (node) { + if (node->next) + /* There is a node which follows the last node + returned. Step to that node and retun it. */ + return node->next; + else + ++cache->last_bucket; + } + + /* If the list isn't exhausted then search the buckets for + other nodes. */ + if (cache->last_bucket < cache->size) { + /* Scan the remainder of the buckets looking for an entry + at the head of the list. Return the first item found. */ + while (cache->last_bucket < cache->size) + if (cache->node_table[cache->last_bucket]) + return cache->node_table[cache->last_bucket]; + else + ++cache->last_bucket; + + /* No further nodes were found in the hash table. */ + return NULL; + } else + return NULL; +} + + +/* Given KEY, return corresponding value for it in CACHE. + Return NULL if the KEY is not recorded. */ + +void * +objc_hash_value_for_key (cache_ptr cache, const void *key) +{ + node_ptr node = cache->node_table[(*cache->hash_func)(cache, key)]; + void *retval = NULL; + + if (node) + do { + if ((*cache->compare_func)(node->key, key)) { + retval = node->value; + break; + } else + node = node->next; + } while (! retval && node); + + return retval; +} + +/* Given KEY, return YES if it exists in the CACHE. + Return NO if it does not */ + +BOOL +objc_hash_is_key_in_hash (cache_ptr cache, const void *key) +{ + node_ptr node = cache->node_table[(*cache->hash_func)(cache, key)]; + + if (node) + do { + if ((*cache->compare_func)(node->key, key)) + return YES; + else + node = node->next; + } while (node); + + return NO; +} diff --git a/contrib/libobjc/init.c b/contrib/libobjc/init.c new file mode 100644 index 0000000..fc3d7ff --- /dev/null +++ b/contrib/libobjc/init.c @@ -0,0 +1,894 @@ +/* GNU Objective C Runtime initialization + Copyright (C) 1993, 1995, 1996, 1997, 2002 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +load support contributed by Ovidiu Predescu <ovidiu@net-community.com> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/runtime.h" + +/* The version number of this runtime. This must match the number + defined in gcc (objc-act.c). */ +#define OBJC_VERSION 8 +#define PROTOCOL_VERSION 2 + +/* This list contains all modules currently loaded into the runtime. */ +static struct objc_list *__objc_module_list = 0; /* !T:MUTEX */ + +/* This list contains all proto_list's not yet assigned class links. */ +static struct objc_list *unclaimed_proto_list = 0; /* !T:MUTEX */ + +/* List of unresolved static instances. */ +static struct objc_list *uninitialized_statics = 0; /* !T:MUTEX */ + +/* Global runtime "write" mutex. */ +objc_mutex_t __objc_runtime_mutex = 0; + +/* Number of threads that are alive. */ +int __objc_runtime_threads_alive = 1; /* !T:MUTEX */ + +/* Check compiler vs runtime version. */ +static void init_check_module_version (Module_t); + +/* Assign isa links to protos. */ +static void __objc_init_protocols (struct objc_protocol_list *protos); + +/* Add protocol to class. */ +static void __objc_class_add_protocols (Class, struct objc_protocol_list *); + +/* This is a hook which is called by __objc_exec_class every time a + class or a category is loaded into the runtime. This may e.g. help + a dynamic loader determine the classes that have been loaded when + an object file is dynamically linked in. */ +void (*_objc_load_callback) (Class class, Category *category); /* !T:SAFE */ + +/* Is all categories/classes resolved? */ +BOOL __objc_dangling_categories = NO; /* !T:UNUSED */ + +extern SEL +__sel_register_typed_name (const char *name, const char *types, + struct objc_selector *orig, BOOL is_const); + +/* Sends +load to all classes and categories in certain situations. */ +static void objc_send_load (void); + +/* Inserts all the classes defined in module in a tree of classes that + resembles the class hierarchy. This tree is traversed in preorder + and the classes in its nodes receive the +load message if these + methods were not executed before. The algorithm ensures that when + the +load method of a class is executed all the superclasses have + been already received the +load message. */ +static void __objc_create_classes_tree (Module_t module); + +static void __objc_call_callback (Module_t module); + +/* A special version that works only before the classes are completely + installed in the runtime. */ +static BOOL class_is_subclass_of_class (Class class, Class superclass); + +typedef struct objc_class_tree { + Class class; + struct objc_list *subclasses; /* `head' is pointer to an objc_class_tree */ +} objc_class_tree; + +/* This is a linked list of objc_class_tree trees. The head of these + trees are root classes (their super class is Nil). These different + trees represent different class hierarchies. */ +static struct objc_list *__objc_class_tree_list = NULL; + +/* Keeps the +load methods who have been already executed. This hash + should not be destroyed during the execution of the program. */ +static cache_ptr __objc_load_methods = NULL; + +/* This function is used when building the class tree used to send + ordinately the +load message to all classes needing it. The tree + is really needed so that superclasses will get the message before + subclasses. + + This tree will contain classes which are being loaded (or have just + being loaded), and whose super_class pointers have not yet been + resolved. This implies that their super_class pointers point to a + string with the name of the superclass; when the first message is + sent to the class (/an object of that class) the class links will + be resolved, which will replace the super_class pointers with + pointers to the actual superclasses. + + Unfortunately, the tree might also contain classes which had been + loaded previously, and whose class links have already been + resolved. + + This function returns the superclass of a class in both cases, and + can be used to build the determine the class relationships while + building the tree. +*/ +static Class class_superclass_of_class (Class class) +{ + char *super_class_name; + + /* If the class links have been resolved, use the resolved + * links. */ + if (CLS_ISRESOLV (class)) + return class->super_class; + + /* Else, 'class' has not yet been resolved. This means that its + * super_class pointer is really the name of the super class (rather + * than a pointer to the actual superclass). */ + super_class_name = (char *)class->super_class; + + /* Return Nil for a root class. */ + if (super_class_name == NULL) + return Nil; + + /* Lookup the superclass of non-root classes. */ + return objc_lookup_class (super_class_name); +} + + +/* Creates a tree of classes whose topmost class is directly inherited + from `upper' and the bottom class in this tree is + `bottom_class'. The classes in this tree are super classes of + `bottom_class'. `subclasses' member of each tree node point to the + next subclass tree node. */ + +static objc_class_tree * +create_tree_of_subclasses_inherited_from (Class bottom_class, Class upper) +{ + Class superclass = bottom_class->super_class ? + objc_lookup_class ((char *) bottom_class->super_class) + : Nil; + + objc_class_tree *tree, *prev; + + DEBUG_PRINTF ("create_tree_of_subclasses_inherited_from:"); + DEBUG_PRINTF ("bottom_class = %s, upper = %s\n", + (bottom_class ? bottom_class->name : NULL), + (upper ? upper->name : NULL)); + + tree = prev = objc_calloc (1, sizeof (objc_class_tree)); + prev->class = bottom_class; + + while (superclass != upper) + { + tree = objc_calloc (1, sizeof (objc_class_tree)); + tree->class = superclass; + tree->subclasses = list_cons (prev, tree->subclasses); + superclass = class_superclass_of_class (superclass); + prev = tree; + } + + return tree; +} + +/* Insert the `class' into the proper place in the `tree' class + hierarchy. This function returns a new tree if the class has been + successfully inserted into the tree or NULL if the class is not + part of the classes hierarchy described by `tree'. This function is + private to objc_tree_insert_class (), you should not call it + directly. */ + +static objc_class_tree * +__objc_tree_insert_class (objc_class_tree *tree, Class class) +{ + DEBUG_PRINTF ("__objc_tree_insert_class: tree = %x, class = %s\n", + tree, class->name); + + if (tree == NULL) + return create_tree_of_subclasses_inherited_from (class, NULL); + else if (class == tree->class) + { + /* `class' has been already inserted */ + DEBUG_PRINTF ("1. class %s was previously inserted\n", class->name); + return tree; + } + else if (class_superclass_of_class (class) == tree->class) + { + /* If class is a direct subclass of tree->class then add class to the + list of subclasses. First check to see if it wasn't already + inserted. */ + struct objc_list *list = tree->subclasses; + objc_class_tree *node; + + while (list) + { + /* Class has been already inserted; do nothing just return + the tree. */ + if (((objc_class_tree *) list->head)->class == class) + { + DEBUG_PRINTF ("2. class %s was previously inserted\n", + class->name); + return tree; + } + list = list->tail; + } + + /* Create a new node class and insert it into the list of subclasses */ + node = objc_calloc (1, sizeof (objc_class_tree)); + node->class = class; + tree->subclasses = list_cons (node, tree->subclasses); + DEBUG_PRINTF ("3. class %s inserted\n", class->name); + return tree; + } + else + { + /* The class is not a direct subclass of tree->class. Search for + class's superclasses in the list of subclasses. */ + struct objc_list *subclasses = tree->subclasses; + + /* Precondition: the class must be a subclass of tree->class; + otherwise return NULL to indicate our caller that it must + take the next tree. */ + if (! class_is_subclass_of_class (class, tree->class)) + return NULL; + + for (; subclasses != NULL; subclasses = subclasses->tail) + { + Class aClass = ((objc_class_tree *) (subclasses->head))->class; + + if (class_is_subclass_of_class (class, aClass)) + { + /* If we found one of class's superclasses we insert the + class into its subtree and return the original tree + since nothing has been changed. */ + subclasses->head + = __objc_tree_insert_class (subclasses->head, class); + DEBUG_PRINTF ("4. class %s inserted\n", class->name); + return tree; + } + } + + /* We haven't found a subclass of `class' in the `subclasses' + list. Create a new tree of classes whose topmost class is a + direct subclass of tree->class. */ + { + objc_class_tree *new_tree + = create_tree_of_subclasses_inherited_from (class, tree->class); + tree->subclasses = list_cons (new_tree, tree->subclasses); + DEBUG_PRINTF ("5. class %s inserted\n", class->name); + return tree; + } + } +} + +/* This function inserts `class' in the right tree hierarchy classes. */ + +static void +objc_tree_insert_class (Class class) +{ + struct objc_list *list_node; + objc_class_tree *tree; + + list_node = __objc_class_tree_list; + while (list_node) + { + tree = __objc_tree_insert_class (list_node->head, class); + if (tree) + { + list_node->head = tree; + break; + } + else + list_node = list_node->tail; + } + + /* If the list was finished but the class hasn't been inserted, + insert it here. */ + if (! list_node) + { + __objc_class_tree_list = list_cons (NULL, __objc_class_tree_list); + __objc_class_tree_list->head = __objc_tree_insert_class (NULL, class); + } +} + +/* Traverse tree in preorder. Used to send +load. */ + +static void +objc_preorder_traverse (objc_class_tree *tree, + int level, + void (*function) (objc_class_tree *, int)) +{ + struct objc_list *node; + + (*function) (tree, level); + for (node = tree->subclasses; node; node = node->tail) + objc_preorder_traverse (node->head, level + 1, function); +} + +/* Traverse tree in postorder. Used to destroy a tree. */ + +static void +objc_postorder_traverse (objc_class_tree *tree, + int level, + void (*function) (objc_class_tree *, int)) +{ + struct objc_list *node; + + for (node = tree->subclasses; node; node = node->tail) + objc_postorder_traverse (node->head, level + 1, function); + (*function) (tree, level); +} + +/* Used to print a tree class hierarchy. */ + +#ifdef DEBUG +static void +__objc_tree_print (objc_class_tree *tree, int level) +{ + int i; + + for (i = 0; i < level; i++) + printf (" "); + printf ("%s\n", tree->class->name); +} +#endif + +/* Walks on a linked list of methods in the reverse order and executes + all the methods corresponding to `op' selector. Walking in the + reverse order assures the +load of class is executed first and then + +load of categories because of the way in which categories are + added to the class methods. */ + +static void +__objc_send_message_in_list (MethodList_t method_list, Class class, SEL op) +{ + int i; + + if (! method_list) + return; + + /* First execute the `op' message in the following method lists */ + __objc_send_message_in_list (method_list->method_next, class, op); + + /* Search the method list. */ + for (i = 0; i < method_list->method_count; i++) + { + Method_t mth = &method_list->method_list[i]; + + if (mth->method_name && sel_eq (mth->method_name, op) + && ! objc_hash_is_key_in_hash (__objc_load_methods, mth->method_imp)) + { + /* Add this method into the +load hash table */ + objc_hash_add (&__objc_load_methods, + mth->method_imp, + mth->method_imp); + + DEBUG_PRINTF ("sending +load in class: %s\n", class->name); + + /* The method was found and wasn't previously executed. */ + (*mth->method_imp) ((id)class, mth->method_name); + + break; + } + } +} + +static void +__objc_send_load (objc_class_tree *tree, + int level __attribute__ ((__unused__))) +{ + static SEL load_sel = 0; + Class class = tree->class; + MethodList_t method_list = class->class_pointer->methods; + + if (! load_sel) + load_sel = sel_register_name ("load"); + + __objc_send_message_in_list (method_list, class, load_sel); +} + +static void +__objc_destroy_class_tree_node (objc_class_tree *tree, + int level __attribute__ ((__unused__))) +{ + objc_free (tree); +} + +/* This is used to check if the relationship between two classes + before the runtime completely installs the classes. */ + +static BOOL +class_is_subclass_of_class (Class class, Class superclass) +{ + for (; class != Nil;) + { + if (class == superclass) + return YES; + class = class_superclass_of_class (class); + } + + return NO; +} + +/* This list contains all the classes in the runtime system for whom + their superclasses are not yet known to the runtime. */ +static struct objc_list *unresolved_classes = 0; + +/* Extern function used to reference the Object and NXConstantString + classes. */ + +extern void __objc_force_linking (void); + +void +__objc_force_linking (void) +{ + extern void __objc_linking (void); + __objc_linking (); +} + +/* Run through the statics list, removing modules as soon as all its + statics have been initialized. */ + +static void +objc_init_statics (void) +{ + struct objc_list **cell = &uninitialized_statics; + struct objc_static_instances **statics_in_module; + + objc_mutex_lock (__objc_runtime_mutex); + + while (*cell) + { + int module_initialized = 1; + + for (statics_in_module = (*cell)->head; + *statics_in_module; statics_in_module++) + { + struct objc_static_instances *statics = *statics_in_module; + Class class = objc_lookup_class (statics->class_name); + + if (! class) + module_initialized = 0; + /* Actually, the static's class_pointer will be NULL when we + haven't been here before. However, the comparison is to be + reminded of taking into account class posing and to think about + possible semantics... */ + else if (class != statics->instances[0]->class_pointer) + { + id *inst; + + for (inst = &statics->instances[0]; *inst; inst++) + { + (*inst)->class_pointer = class; + + /* ??? Make sure the object will not be freed. With + refcounting, invoke `-retain'. Without refcounting, do + nothing and hope that `-free' will never be invoked. */ + + /* ??? Send the object an `-initStatic' or something to + that effect now or later on? What are the semantics of + statically allocated instances, besides the trivial + NXConstantString, anyway? */ + } + } + } + if (module_initialized) + { + /* Remove this module from the uninitialized list. */ + struct objc_list *this = *cell; + *cell = this->tail; + objc_free (this); + } + else + cell = &(*cell)->tail; + } + + objc_mutex_unlock (__objc_runtime_mutex); +} /* objc_init_statics */ + +/* This function is called by constructor functions generated for each + module compiled. (_GLOBAL_$I$...) The purpose of this function is + to gather the module pointers so that they may be processed by the + initialization routines as soon as possible. */ + +void +__objc_exec_class (Module_t module) +{ + /* Have we processed any constructors previously? This flag is used to + indicate that some global data structures need to be built. */ + static BOOL previous_constructors = 0; + + static struct objc_list *unclaimed_categories = 0; + + /* The symbol table (defined in objc-api.h) generated by gcc */ + Symtab_t symtab = module->symtab; + + /* The statics in this module */ + struct objc_static_instances **statics + = symtab->defs[symtab->cls_def_cnt + symtab->cat_def_cnt]; + + /* Entry used to traverse hash lists */ + struct objc_list **cell; + + /* The table of selector references for this module */ + SEL selectors = symtab->refs; + + /* dummy counter */ + int i; + + DEBUG_PRINTF ("received module: %s\n", module->name); + + /* check gcc version */ + init_check_module_version (module); + + /* On the first call of this routine, initialize some data structures. */ + if (! previous_constructors) + { + /* Initialize thread-safe system */ + __objc_init_thread_system (); + __objc_runtime_threads_alive = 1; + __objc_runtime_mutex = objc_mutex_allocate (); + + __objc_init_selector_tables (); + __objc_init_class_tables (); + __objc_init_dispatch_tables (); + __objc_class_tree_list = list_cons (NULL, __objc_class_tree_list); + __objc_load_methods = objc_hash_new (128, + (hash_func_type)objc_hash_ptr, + objc_compare_ptrs); + previous_constructors = 1; + } + + /* Save the module pointer for later processing. (not currently used) */ + objc_mutex_lock (__objc_runtime_mutex); + __objc_module_list = list_cons (module, __objc_module_list); + + /* Replace referenced selectors from names to SEL's. */ + if (selectors) + { + for (i = 0; selectors[i].sel_id; ++i) + { + const char *name, *type; + name = (char *) selectors[i].sel_id; + type = (char *) selectors[i].sel_types; + /* Constructors are constant static data so we can safely store + pointers to them in the runtime structures. is_const == YES */ + __sel_register_typed_name (name, type, + (struct objc_selector *) &(selectors[i]), + YES); + } + } + + /* Parse the classes in the load module and gather selector information. */ + DEBUG_PRINTF ("gathering selectors from module: %s\n", module->name); + for (i = 0; i < symtab->cls_def_cnt; ++i) + { + Class class = (Class) symtab->defs[i]; + const char *superclass = (char *) class->super_class; + + /* Make sure we have what we think. */ + assert (CLS_ISCLASS (class)); + assert (CLS_ISMETA (class->class_pointer)); + DEBUG_PRINTF ("phase 1, processing class: %s\n", class->name); + + /* Initialize the subclass list to be NULL. + In some cases it isn't and this crashes the program. */ + class->subclass_list = NULL; + + /* Store the class in the class table and assign class numbers. */ + __objc_add_class_to_hash (class); + + /* Register all of the selectors in the class and meta class. */ + __objc_register_selectors_from_class (class); + __objc_register_selectors_from_class ((Class) class->class_pointer); + + /* Install the fake dispatch tables */ + __objc_install_premature_dtable (class); + __objc_install_premature_dtable (class->class_pointer); + + /* Register the instance methods as class methods, this is + only done for root classes. */ + __objc_register_instance_methods_to_class (class); + + if (class->protocols) + __objc_init_protocols (class->protocols); + + /* Check to see if the superclass is known in this point. If it's not + add the class to the unresolved_classes list. */ + if (superclass && ! objc_lookup_class (superclass)) + unresolved_classes = list_cons (class, unresolved_classes); + } + + /* Process category information from the module. */ + for (i = 0; i < symtab->cat_def_cnt; ++i) + { + Category_t category = symtab->defs[i + symtab->cls_def_cnt]; + Class class = objc_lookup_class (category->class_name); + + /* If the class for the category exists then append its methods. */ + if (class) + { + + DEBUG_PRINTF ("processing categories from (module,object): %s, %s\n", + module->name, + class->name); + + /* Do instance methods. */ + if (category->instance_methods) + class_add_method_list (class, category->instance_methods); + + /* Do class methods. */ + if (category->class_methods) + class_add_method_list ((Class) class->class_pointer, + category->class_methods); + + if (category->protocols) + { + __objc_init_protocols (category->protocols); + __objc_class_add_protocols (class, category->protocols); + } + + /* Register the instance methods as class methods, this is + only done for root classes. */ + __objc_register_instance_methods_to_class (class); + } + else + { + /* The object to which the category methods belong can't be found. + Save the information. */ + unclaimed_categories = list_cons (category, unclaimed_categories); + } + } + + if (statics) + uninitialized_statics = list_cons (statics, uninitialized_statics); + if (uninitialized_statics) + objc_init_statics (); + + /* Scan the unclaimed category hash. Attempt to attach any unclaimed + categories to objects. */ + for (cell = &unclaimed_categories; *cell; ) + { + Category_t category = (*cell)->head; + Class class = objc_lookup_class (category->class_name); + + if (class) + { + DEBUG_PRINTF ("attaching stored categories to object: %s\n", + class->name); + + list_remove_head (cell); + + if (category->instance_methods) + class_add_method_list (class, category->instance_methods); + + if (category->class_methods) + class_add_method_list ((Class) class->class_pointer, + category->class_methods); + + if (category->protocols) + { + __objc_init_protocols (category->protocols); + __objc_class_add_protocols (class, category->protocols); + } + + /* Register the instance methods as class methods, this is + only done for root classes. */ + __objc_register_instance_methods_to_class (class); + } + else + cell = &(*cell)->tail; + } + + if (unclaimed_proto_list && objc_lookup_class ("Protocol")) + { + list_mapcar (unclaimed_proto_list, + (void (*) (void *))__objc_init_protocols); + list_free (unclaimed_proto_list); + unclaimed_proto_list = 0; + } + + objc_send_load (); + + objc_mutex_unlock (__objc_runtime_mutex); +} + +static void +objc_send_load (void) +{ + if (! __objc_module_list) + return; + + /* Try to find out if all the classes loaded so far also have their + superclasses known to the runtime. We suppose that the objects + that are allocated in the +load method are in general of a class + declared in the same module. */ + if (unresolved_classes) + { + Class class = unresolved_classes->head; + + while (objc_lookup_class ((char *) class->super_class)) + { + list_remove_head (&unresolved_classes); + if (unresolved_classes) + class = unresolved_classes->head; + else + break; + } + + /* If we still have classes for whom we don't have yet their + super classes known to the runtime we don't send the +load + messages. */ + if (unresolved_classes) + return; + } + + /* Special check to allow creating and sending messages to constant + strings in +load methods. If these classes are not yet known, + even if all the other classes are known, delay sending of +load. */ + if (! objc_lookup_class ("NXConstantString") || + ! objc_lookup_class ("Object")) + return; + + /* Iterate over all modules in the __objc_module_list and call on + them the __objc_create_classes_tree function. This function + creates a tree of classes that resembles the class hierarchy. */ + list_mapcar (__objc_module_list, + (void (*) (void *)) __objc_create_classes_tree); + + while (__objc_class_tree_list) + { +#ifdef DEBUG + objc_preorder_traverse (__objc_class_tree_list->head, + 0, __objc_tree_print); +#endif + objc_preorder_traverse (__objc_class_tree_list->head, + 0, __objc_send_load); + objc_postorder_traverse (__objc_class_tree_list->head, + 0, __objc_destroy_class_tree_node); + list_remove_head (&__objc_class_tree_list); + } + + list_mapcar (__objc_module_list, (void (*) (void *)) __objc_call_callback); + list_free (__objc_module_list); + __objc_module_list = NULL; +} + +static void +__objc_create_classes_tree (Module_t module) +{ + /* The runtime mutex is locked in this point */ + + Symtab_t symtab = module->symtab; + int i; + + /* Iterate thru classes defined in this module and insert them in + the classes tree hierarchy. */ + for (i = 0; i < symtab->cls_def_cnt; i++) + { + Class class = (Class) symtab->defs[i]; + + objc_tree_insert_class (class); + } +} + +static void +__objc_call_callback (Module_t module) +{ + /* The runtime mutex is locked in this point. */ + + Symtab_t symtab = module->symtab; + int i; + + /* Iterate thru classes defined in this module and call the callback + for each one. */ + for (i = 0; i < symtab->cls_def_cnt; i++) + { + Class class = (Class) symtab->defs[i]; + + /* Call the _objc_load_callback for this class. */ + if (_objc_load_callback) + _objc_load_callback (class, 0); + } + + /* Call the _objc_load_callback for categories. Don't register the + instance methods as class methods for categories to root classes + since they were already added in the class. */ + for (i = 0; i < symtab->cat_def_cnt; i++) + { + Category_t category = symtab->defs[i + symtab->cls_def_cnt]; + Class class = objc_lookup_class (category->class_name); + + if (_objc_load_callback) + _objc_load_callback (class, category); + } +} + +/* Sanity check the version of gcc used to compile `module'. */ + +static void +init_check_module_version (Module_t module) +{ + if ((module->version != OBJC_VERSION) || (module->size != sizeof (Module))) + { + int code; + + if (module->version > OBJC_VERSION) + code = OBJC_ERR_OBJC_VERSION; + else if (module->version < OBJC_VERSION) + code = OBJC_ERR_GCC_VERSION; + else + code = OBJC_ERR_MODULE_SIZE; + + objc_error (nil, code, "Module %s version %d doesn't match runtime %d\n", + module->name, (int)module->version, OBJC_VERSION); + } +} + +static void +__objc_init_protocols (struct objc_protocol_list *protos) +{ + size_t i; + static Class proto_class = 0; + + if (! protos) + return; + + objc_mutex_lock (__objc_runtime_mutex); + + if (! proto_class) + proto_class = objc_lookup_class ("Protocol"); + + if (! proto_class) + { + unclaimed_proto_list = list_cons (protos, unclaimed_proto_list); + objc_mutex_unlock (__objc_runtime_mutex); + return; + } + +#if 0 + assert (protos->next == 0); /* only single ones allowed */ +#endif + + for (i = 0; i < protos->count; i++) + { + struct objc_protocol *aProto = protos->list[i]; + if (((size_t)aProto->class_pointer) == PROTOCOL_VERSION) + { + /* assign class pointer */ + aProto->class_pointer = proto_class; + + /* init super protocols */ + __objc_init_protocols (aProto->protocol_list); + } + else if (protos->list[i]->class_pointer != proto_class) + { + objc_error (nil, OBJC_ERR_PROTOCOL_VERSION, + "Version %d doesn't match runtime protocol version %d\n", + (int) ((char *) protos->list[i]->class_pointer + - (char *) 0), + PROTOCOL_VERSION); + } + } + + objc_mutex_unlock (__objc_runtime_mutex); +} + +static void +__objc_class_add_protocols (Class class, struct objc_protocol_list *protos) +{ + /* Well... */ + if (! protos) + return; + + /* Add it... */ + protos->next = class->protocols; + class->protocols = protos; +} diff --git a/contrib/libobjc/libobjc.def b/contrib/libobjc/libobjc.def new file mode 100644 index 0000000..a80fb61 --- /dev/null +++ b/contrib/libobjc/libobjc.def @@ -0,0 +1,170 @@ +; GNU Objective C Runtime DLL Export Definitions +; Copyright (C) 1997 Free Software Foundation, Inc. +; Contributed by Scott Christley <scottc@net-community.com> +; +; This file is part of GCC. +; +; GCC is free software; you can redistribute it and/or modify it under the +; terms of the GNU General Public License as published by the Free Software +; Foundation; either version 2, or (at your option) any later version. +; +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY +; WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +; FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +; details. +; +; You should have received a copy of the GNU General Public License along with +; GCC; see the file COPYING. If not, write to the Free Software +; Foundation, 51 Franklin Street, Fifth Floor, +; Boston, MA 02110-1301, USA. + +LIBRARY libobjc +EXPORTS +search_for_method_in_list +objc_get_uninstalled_dtable +objc_hash_is_key_in_hash +hash_is_key_in_hash +objc_verror +_objc_load_callback +objc_malloc +objc_atomic_malloc +objc_valloc +objc_realloc +objc_calloc +objc_free +__objc_init_thread_system +objc_mutex_allocate +objc_mutex_deallocate +objc_mutex_lock +objc_mutex_trylock +objc_mutex_unlock +objc_thread_detach +objc_thread_exit +objc_thread_get_data +objc_thread_get_priority +objc_thread_id +objc_thread_set_data +objc_thread_set_priority +objc_thread_yield +objc_thread_add +objc_thread_remove +__objc_class_name_Object +__objc_class_name_Protocol +__objc_class_name_NXConstantString +objc_error +__objc_object_alloc +__objc_object_copy +__objc_object_dispose +class_create_instance +object_copy +object_dispose +__objc_init_selector_tables +__objc_register_selectors_from_class +__sel_register_typed_name +sel_get_any_typed_uid +sel_get_any_uid +sel_get_name +sel_get_type +sel_get_typed_uid +sel_get_uid +sel_is_mapped +sel_register_name +sel_register_typed_name +sel_types_match +method_get_first_argument +method_get_next_argument +method_get_nth_argument +method_get_number_of_arguments +method_get_sizeof_arguments +objc_aligned_size +objc_alignof_type +objc_get_type_qualifiers +objc_promoted_size +objc_sizeof_type +objc_skip_argspec +objc_skip_offset +objc_skip_type_qualifiers +objc_skip_typespec +__objc_read_nbyte_uint +__objc_read_nbyte_ulong +__objc_write_class +__objc_write_object +__objc_write_selector +objc_close_typed_stream +objc_end_of_typed_stream +objc_flush_typed_stream +objc_get_stream_class_version +objc_open_typed_stream +objc_open_typed_stream_for_file +objc_read_array +objc_read_char +objc_read_int +objc_read_long +objc_read_object +objc_read_selector +objc_read_short +objc_read_string +objc_read_type +objc_read_types +objc_read_unsigned_char +objc_read_unsigned_int +objc_read_unsigned_long +objc_read_unsigned_short +objc_write_array +objc_write_char +objc_write_int +objc_write_long +objc_write_object +objc_write_object_reference +objc_write_root_object +objc_write_selector +objc_write_short +objc_write_string +objc_write_string_atomic +objc_write_type +objc_write_types +objc_write_unsigned_char +objc_write_unsigned_int +objc_write_unsigned_long +objc_write_unsigned_short +__objc_exec_class +__objc_init_dispatch_tables +__objc_install_premature_dtable +__objc_print_dtable_stats +__objc_responds_to +__objc_update_dispatch_table_for_class +class_add_method_list +class_get_class_method +class_get_instance_method +get_imp +nil_method +objc_msg_lookup +objc_msg_lookup_super +objc_msg_sendv +__objc_add_class_to_hash +__objc_init_class_tables +__objc_resolve_class_links +class_pose_as +objc_get_class +objc_get_meta_class +objc_lookup_class +objc_next_class +sarray_at_put +sarray_at_put_safe +sarray_free +sarray_lazy_copy +sarray_new +sarray_realloc +sarray_remove_garbage +objc_hash_add +hash_add +objc_hash_delete +hash_delete +objc_hash_new +hash_new +objc_hash_next +hash_next +objc_hash_remove +hash_remove +objc_hash_value_for_key +hash_value_for_key diff --git a/contrib/libobjc/libobjc_entry.c b/contrib/libobjc/libobjc_entry.c new file mode 100644 index 0000000..205b0ed --- /dev/null +++ b/contrib/libobjc/libobjc_entry.c @@ -0,0 +1,55 @@ +/* GNU Objective C Runtime DLL Entry + Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Scott Christley <scottc@net-community.com> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <windows.h> + +/* + DLL entry function for Objective-C Runtime library + This function gets called everytime a process/thread attaches to DLL + */ +WINBOOL WINAPI DllMain(HANDLE hInst, ULONG ul_reason_for_call, + LPVOID lpReserved) +{ + switch(ul_reason_for_call) + { + case DLL_PROCESS_ATTACH: + break; + case DLL_PROCESS_DETACH: + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + break; + } + return TRUE; +} + +/* + This section terminates the list of imports under GCC. If you do not + include this then you will have problems when linking with DLLs. + */ +asm (".section .idata$3\n" ".long 0,0,0,0,0,0,0,0"); diff --git a/contrib/libobjc/linking.m b/contrib/libobjc/linking.m new file mode 100644 index 0000000..8c8a0a9 --- /dev/null +++ b/contrib/libobjc/linking.m @@ -0,0 +1,40 @@ +/* Force linking of classes required by Objective C runtime. + Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Ovidiu Predescu (ovidiu@net-community.com). + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <objc/Object.h> +#include <objc/NXConstStr.h> + +/* Generate references to Object and NXConstanstString classes since they are + needed by the runtime system to run correctly. */ + + +void __objc_linking (void) +{ + [Object name]; + [NXConstantString name]; +} + diff --git a/contrib/libobjc/makefile.dos b/contrib/libobjc/makefile.dos new file mode 100644 index 0000000..c7544a1 --- /dev/null +++ b/contrib/libobjc/makefile.dos @@ -0,0 +1,56 @@ +# GNU Objective C Runtime Makefile for compiling with djgpp +# Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc. +# +# This file is part of GCC. +# +# GCC is free software; you can redistribute it and/or modify it under the +# terms of the GNU General Public License as published by the Free Software +# Foundation; either version 2, or (at your option) any later version. +# +# GCC is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# GCC; see the file COPYING. If not, write to the Free Software +# Foundation, 51 Franklin Street, Fifth Floor, +# Boston, MA 02110-1301, USA. + +# This Makefile is configured for GnuMAKE + +GCC_FOR_TARGET=gcc + +.SUFFIXES: .o .m + +OPTIMIZE = -O2 + +# Always search these dirs when compiling. +SUBDIR_INCLUDES = -I. -I.. -I../config + +.c.o: + $(GCC_FOR_TARGET) $(OPTIMIZE) \ + -c $(GCC_CFLAGS) $(SUBDIR_INCLUDES) $< + +.m.o: + $(GCC_FOR_TARGET) $(OPTIMIZE) -fgnu-runtime \ + -c $(GCC_CFLAGS) $(SUBDIR_INCLUDES) $< + +OBJC_O = hash.o sarray.o class.o sendmsg.o init.o archive.o \ + selector.o objects.o misc.o object.o protocol.o encoding.o thread.o + +libobjc.a: $(OBJC_O) + -rm -f libobjc.a + ar rc libobjc.a $(OBJC_O) + ranlib libobjc.a + +OBJC_H = hash.h objc-list.h sarray.h objc.h \ + objc-api.h \ + object.h protocol.h mutex.h \ + typedstream.h thread.h + +mostlyclean: + -rm -f *.o libobjc.a xforward fflags +clean: mostlyclean +distclean: mostlyclean +extraclean: mostlyclean diff --git a/contrib/libobjc/misc.c b/contrib/libobjc/misc.c new file mode 100644 index 0000000..972cff1 --- /dev/null +++ b/contrib/libobjc/misc.c @@ -0,0 +1,185 @@ +/* GNU Objective C Runtime Miscellaneous + Copyright (C) 1993, 1994, 1995, 1996, 1997, 2002 + Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#define __USE_FIXED_PROTOTYPES__ +#include <stdlib.h> +#include "objc/runtime.h" + +/* +** Error handler function +** NULL so that default is to just print to stderr +*/ +static objc_error_handler _objc_error_handler = NULL; + +/* Trigger an objc error */ +void +objc_error (id object, int code, const char *fmt, ...) +{ + va_list ap; + + va_start (ap, fmt); + objc_verror (object, code, fmt, ap); + va_end (ap); +} + +/* Trigger an objc error */ +void +objc_verror (id object, int code, const char *fmt, va_list ap) +{ + BOOL result = NO; + + /* Call the error handler if its there + Otherwise print to stderr */ + if (_objc_error_handler) + result = (*_objc_error_handler) (object, code, fmt, ap); + else + vfprintf (stderr, fmt, ap); + + /* Continue if the error handler says its ok + Otherwise abort the program */ + if (result) + return; + else + abort (); +} + +/* Set the error handler */ +objc_error_handler +objc_set_error_handler (objc_error_handler func) +{ + objc_error_handler temp = _objc_error_handler; + _objc_error_handler = func; + return temp; +} + +/* +** Standard functions for memory allocation and disposal. +** Users should use these functions in their ObjC programs so +** that they work properly with garbage collectors as well as +** can take advantage of the exception/error handling available. +*/ + +void * +objc_malloc (size_t size) +{ + void *res = (void *) (*_objc_malloc) (size); + if (! res) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n"); + return res; +} + +void * +objc_atomic_malloc (size_t size) +{ + void *res = (void *) (*_objc_atomic_malloc) (size); + if (! res) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n"); + return res; +} + +void * +objc_valloc (size_t size) +{ + void *res = (void *) (*_objc_valloc) (size); + if (! res) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n"); + return res; +} + +void * +objc_realloc (void *mem, size_t size) +{ + void *res = (void *) (*_objc_realloc) (mem, size); + if (! res) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n"); + return res; +} + +void * +objc_calloc (size_t nelem, size_t size) +{ + void *res = (void *) (*_objc_calloc) (nelem, size); + if (! res) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n"); + return res; +} + +void +objc_free (void *mem) +{ + (*_objc_free) (mem); +} + +/* +** Hook functions for memory allocation and disposal. +** This makes it easy to substitute garbage collection systems +** such as Boehm's GC by assigning these function pointers +** to the GC's allocation routines. By default these point +** to the ANSI standard malloc, realloc, free, etc. +** +** Users should call the normal objc routines above for +** memory allocation and disposal within their programs. +*/ + +#if OBJC_WITH_GC +#include <gc.h> + +static void * +GC_calloc (size_t nelem, size_t size) +{ + void *p = GC_malloc (nelem * size); + if (! p) + objc_error (nil, OBJC_ERR_MEMORY, "Virtual memory exhausted!\n"); + + memset (p, 0, nelem * size); + return p; +} + +static void +noFree (void *p) +{ +} + +void *(*_objc_malloc) (size_t) = GC_malloc; +void *(*_objc_atomic_malloc) (size_t) = GC_malloc_atomic; +void *(*_objc_valloc) (size_t) = GC_malloc; +void *(*_objc_realloc) (void *, size_t) = GC_realloc; +void *(*_objc_calloc) (size_t, size_t) = GC_calloc; +void (*_objc_free) (void *) = noFree; + +#else /* !OBJC_WITH_GC */ + +void *(*_objc_malloc) (size_t) = malloc; +void *(*_objc_atomic_malloc) (size_t) = malloc; +void *(*_objc_valloc) (size_t) = malloc; +void *(*_objc_realloc) (void *, size_t) = realloc; +void *(*_objc_calloc) (size_t, size_t) = calloc; +void (*_objc_free) (void *) = free; + + +#endif /* !OBJC_WITH_GC */ diff --git a/contrib/libobjc/nil_method.c b/contrib/libobjc/nil_method.c new file mode 100644 index 0000000..268f0e3 --- /dev/null +++ b/contrib/libobjc/nil_method.c @@ -0,0 +1,55 @@ +/* GNU Objective C Runtime nil receiver function + Copyright (C) 1993, 1995, 1996, 2002 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +/* This is the nil method, the function that is called when the receiver + of a method is nil */ + +#include "objc/runtime.h" + +/* When the receiver of a method invocation is nil, the runtime + returns nil_method() as the method implementation. This function + will be casted to whatever function was supposed to be executed to + execute that method (that function will take an id, followed by a + SEL, followed by who knows what arguments, depends on the method), + and executed. + + For this reason, nil_method() should be a function which can be + called in place of any function taking an 'id' argument followed by + a 'SEL' argument, followed by zero, or one, or any number of + arguments (both a fixed number, or a variable number !). + + There is no "proper" implementation of such a nil_method function + in C, however in all existing implementations it does not matter + when extra arguments are present, so we can simply create a function + taking a receiver and a selector, and all other arguments will be + ignored. :-) +*/ + +id +nil_method (id receiver, SEL op __attribute__ ((__unused__))) +{ + return receiver; +} diff --git a/contrib/libobjc/objc/NXConstStr.h b/contrib/libobjc/objc/NXConstStr.h new file mode 100644 index 0000000..3f408d3 --- /dev/null +++ b/contrib/libobjc/objc/NXConstStr.h @@ -0,0 +1,52 @@ +/* Interface for the NXConstantString class for Objective-C. + Copyright (C) 1995, 2004 Free Software Foundation, Inc. + Contributed by Pieter J. Schoenmakers <tiggr@es.ele.tue.nl> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#ifndef __nxconstantstring_INCLUDE_GNU +#define __nxconstantstring_INCLUDE_GNU + +#include "Object.h" + +#ifdef __cplusplus +extern "C" { +#endif + +@interface NXConstantString: Object +{ + char *c_string; + unsigned int len; +} + +-(const char *) cString; +-(unsigned int) length; + +@end + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/contrib/libobjc/objc/Object.h b/contrib/libobjc/objc/Object.h new file mode 100644 index 0000000..7b67f46 --- /dev/null +++ b/contrib/libobjc/objc/Object.h @@ -0,0 +1,132 @@ +/* Interface for the Object class for Objective-C. + Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#ifndef __object_INCLUDE_GNU +#define __object_INCLUDE_GNU + +#include "objc.h" +#include "typedstream.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * All classes are derived from Object. As such, + * this is the overhead tacked onto those objects. + */ +@interface Object +{ + Class isa; /* A pointer to the instance's class structure */ +} + + /* Initializing classes and instances */ ++ initialize; +- init; + + /* Creating, freeing, and copying instances */ ++ new; ++ alloc; +- free; +- copy; +- shallowCopy; +- deepen; +- deepCopy; + + /* Identifying classes */ +- (Class)class; +- (Class)superClass; +- (MetaClass)metaClass; +- (const char *)name; + + /* Identifying and comparing objects */ +- self; +- (unsigned int)hash; +- (BOOL)isEqual:anObject; +- (int)compare:anotherObject; + + /* Testing object type */ +- (BOOL)isMetaClass; +- (BOOL)isClass; +- (BOOL)isInstance; + + /* Testing inheritance relationships */ +- (BOOL)isKindOf:(Class)aClassObject; +- (BOOL)isMemberOf:(Class)aClassObject; +- (BOOL)isKindOfClassNamed:(const char *)aClassName; +- (BOOL)isMemberOfClassNamed:(const char *)aClassName; + + /* Testing class functionality */ ++ (BOOL)instancesRespondTo:(SEL)aSel; +- (BOOL)respondsTo:(SEL)aSel; + + /* Testing protocol conformance */ +- (BOOL)conformsTo:(Protocol*)aProtocol; + + /* Introspection */ ++ (IMP)instanceMethodFor:(SEL)aSel; +- (IMP)methodFor:(SEL)aSel; ++ (struct objc_method_description *)descriptionForInstanceMethod:(SEL)aSel; +- (struct objc_method_description *)descriptionForMethod:(SEL)aSel; + + /* Sending messages determined at run time */ +- perform:(SEL)aSel; +- perform:(SEL)aSel with:anObject; +- perform:(SEL)aSel with:anObject1 with:anObject2; + + /* Forwarding */ +- (retval_t)forward:(SEL)aSel :(arglist_t)argFrame; +- (retval_t)performv:(SEL)aSel :(arglist_t)argFrame; + + /* Posing */ ++ poseAs:(Class)aClassObject; +- (Class)transmuteClassTo:(Class)aClassObject; + + /* Enforcing intentions */ +- subclassResponsibility:(SEL)aSel; +- notImplemented:(SEL)aSel; +- shouldNotImplement:(SEL)aSel; + + /* Error handling */ +- doesNotRecognize:(SEL)aSel; +- error:(const char *)aString, ...; + + /* Archiving */ ++ (int)version; ++ setVersion:(int)aVersion; ++ (int)streamVersion: (TypedStream*)aStream; + +- read: (TypedStream*)aStream; +- write: (TypedStream*)aStream; +- awake; + +@end + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/contrib/libobjc/objc/Protocol.h b/contrib/libobjc/objc/Protocol.h new file mode 100644 index 0000000..fe0f28a --- /dev/null +++ b/contrib/libobjc/objc/Protocol.h @@ -0,0 +1,63 @@ +/* Declare the class Protocol for Objective C programs. + Copyright (C) 1993, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#ifndef __Protocol_INCLUDE_GNU +#define __Protocol_INCLUDE_GNU + +#include "Object.h" + +#ifdef __cplusplus +extern "C" { +#endif + +@interface Protocol : Object +{ +@private + char *protocol_name; + struct objc_protocol_list *protocol_list; + struct objc_method_description_list *instance_methods, *class_methods; +} + +/* Obtaining attributes intrinsic to the protocol */ + +- (const char *)name; + +/* Testing protocol conformance */ + +- (BOOL) conformsTo: (Protocol *)aProtocolObject; + +/* Looking up information specific to a protocol */ + +- (struct objc_method_description *) descriptionForInstanceMethod:(SEL)aSel; +- (struct objc_method_description *) descriptionForClassMethod:(SEL)aSel; + +@end + +#ifdef __cplusplus +} +#endif + +#endif /* not __Protocol_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/encoding.h b/contrib/libobjc/objc/encoding.h new file mode 100644 index 0000000..c432ee9 --- /dev/null +++ b/contrib/libobjc/objc/encoding.h @@ -0,0 +1,107 @@ +/* Encoding of types for Objective C. + Copyright (C) 1993, 1997, 2002, 2004 Free Software Foundation, Inc. + +Author: Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#ifndef __encoding_INCLUDE_GNU +#define __encoding_INCLUDE_GNU + +#include "objc-api.h" +#include <ctype.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#define _C_CONST 'r' +#define _C_IN 'n' +#define _C_INOUT 'N' +#define _C_OUT 'o' +#define _C_BYCOPY 'O' +#define _C_BYREF 'R' +#define _C_ONEWAY 'V' +#define _C_GCINVISIBLE '!' + +#define _F_CONST 0x01 +#define _F_IN 0x01 +#define _F_OUT 0x02 +#define _F_INOUT 0x03 +#define _F_BYCOPY 0x04 +#define _F_BYREF 0x08 +#define _F_ONEWAY 0x10 +#define _F_GCINVISIBLE 0x20 + +int objc_aligned_size (const char *type); +int objc_sizeof_type (const char *type); +int objc_alignof_type (const char *type); +int objc_aligned_size (const char *type); +int objc_promoted_size (const char *type); + +const char *objc_skip_type_qualifiers (const char *type); +const char *objc_skip_typespec (const char *type); +const char *objc_skip_offset (const char *type); +const char *objc_skip_argspec (const char *type); +int method_get_number_of_arguments (struct objc_method *); +int method_get_sizeof_arguments (struct objc_method *); + +char *method_get_first_argument (struct objc_method *, + arglist_t argframe, + const char **type); +char *method_get_next_argument (arglist_t argframe, + const char **type); +char *method_get_nth_argument (struct objc_method *m, + arglist_t argframe, + int arg, + const char **type); + +unsigned objc_get_type_qualifiers (const char *type); + + +struct objc_struct_layout +{ + const char *original_type; + const char *type; + const char *prev_type; + unsigned int record_size; + unsigned int record_align; +}; + +void objc_layout_structure (const char *type, + struct objc_struct_layout *layout); +BOOL objc_layout_structure_next_member (struct objc_struct_layout *layout); +void objc_layout_finish_structure (struct objc_struct_layout *layout, + unsigned int *size, + unsigned int *align); +void objc_layout_structure_get_info (struct objc_struct_layout *layout, + unsigned int *offset, + unsigned int *align, + const char **type); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __encoding_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/hash.h b/contrib/libobjc/objc/hash.h new file mode 100644 index 0000000..b1cdd0c --- /dev/null +++ b/contrib/libobjc/objc/hash.h @@ -0,0 +1,216 @@ +/* Hash tables for Objective C method dispatch. + Copyright (C) 1993, 1995, 1996, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + + +#ifndef __hash_INCLUDE_GNU +#define __hash_INCLUDE_GNU + +#include <stddef.h> +#include <string.h> +#include "objc.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* + * This data structure is used to hold items + * stored in a hash table. Each node holds + * a key/value pair. + * + * Items in the cache are really of type void *. + */ +typedef struct cache_node +{ + struct cache_node *next; /* Pointer to next entry on the list. + NULL indicates end of list. */ + const void *key; /* Key used to locate the value. Used + to locate value when more than one + key computes the same hash + value. */ + void *value; /* Value stored for the key. */ +} *node_ptr; + + +/* + * This data type is the function that computes a hash code given a key. + * Therefore, the key can be a pointer to anything and the function specific + * to the key type. + * + * Unfortunately there is a mutual data structure reference problem with this + * typedef. Therefore, to remove compiler warnings the functions passed to + * objc_hash_new will have to be casted to this type. + */ +typedef unsigned int (*hash_func_type) (void *, const void *); + +/* + * This data type is the function that compares two hash keys and returns an + * integer greater than, equal to, or less than 0, according as the first + * parameter is lexicographically greater than, equal to, or less than the + * second. + */ + +typedef int (*compare_func_type) (const void *, const void *); + + +/* + * This data structure is the cache. + * + * It must be passed to all of the hashing routines + * (except for new). + */ +typedef struct cache +{ + /* Variables used to implement the hash itself. */ + node_ptr *node_table; /* Pointer to an array of hash nodes. */ + /* Variables used to track the size of the hash table so to determine + when to resize it. */ + unsigned int size; /* Number of buckets allocated for the hash table + (number of array entries allocated for + "node_table"). Must be a power of two. */ + unsigned int used; /* Current number of entries in the hash table. */ + unsigned int mask; /* Precomputed mask. */ + + /* Variables used to implement indexing through the hash table. */ + + unsigned int last_bucket; /* Tracks which entry in the array where + the last value was returned. */ + /* Function used to compute a hash code given a key. + This function is specified when the hash table is created. */ + hash_func_type hash_func; + /* Function used to compare two hash keys to see if they are equal. */ + compare_func_type compare_func; +} *cache_ptr; + + +/* Two important hash tables. */ +extern cache_ptr module_hash_table, class_hash_table; + +/* Allocate and initialize a hash table. */ + +cache_ptr objc_hash_new (unsigned int size, + hash_func_type hash_func, + compare_func_type compare_func); + +/* Deallocate all of the hash nodes and the cache itself. */ + +void objc_hash_delete (cache_ptr cache); + +/* Add the key/value pair to the hash table. If the + hash table reaches a level of fullness then it will be resized. + + assert if the key is already in the hash. */ + +void objc_hash_add (cache_ptr *cachep, const void *key, void *value); + +/* Remove the key/value pair from the hash table. + assert if the key isn't in the table. */ + +void objc_hash_remove (cache_ptr cache, const void *key); + +/* Used to index through the hash table. Start with NULL + to get the first entry. + + Successive calls pass the value returned previously. + ** Don't modify the hash during this operation *** + + Cache nodes are returned such that key or value can + be extracted. */ + +node_ptr objc_hash_next (cache_ptr cache, node_ptr node); + +/* Used to return a value from a hash table using a given key. */ + +void *objc_hash_value_for_key (cache_ptr cache, const void *key); + +/* Used to determine if the given key exists in the hash table */ + +BOOL objc_hash_is_key_in_hash (cache_ptr cache, const void *key); + +/************************************************ + + Useful hashing functions. + + Declared inline for your pleasure. + +************************************************/ + +/* Calculate a hash code by performing some + manipulation of the key pointer. (Use the lowest bits + except for those likely to be 0 due to alignment.) */ + +static inline unsigned int +objc_hash_ptr (cache_ptr cache, const void *key) +{ + return ((size_t)key / sizeof (void *)) & cache->mask; +} + + +/* Calculate a hash code by iterating over a NULL + terminate string. */ +static inline unsigned int +objc_hash_string (cache_ptr cache, const void *key) +{ + unsigned int ret = 0; + unsigned int ctr = 0; + const char *ckey = (const char *) key; + + while (*ckey) { + ret ^= *ckey++ << ctr; + ctr = (ctr + 1) % sizeof (void *); + } + + return ret & cache->mask; +} + + +/* Compare two pointers for equality. */ +static inline int +objc_compare_ptrs (const void *k1, const void *k2) +{ + return (k1 == k2); +} + + +/* Compare two strings. */ +static inline int +objc_compare_strings (const void *k1, const void *k2) +{ + if (k1 == k2) + return 1; + else if (k1 == 0 || k2 == 0) + return 0; + else + return ! strcmp ((const char *) k1, (const char *) k2); +} + + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + + +#endif /* not __hash_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/objc-api.h b/contrib/libobjc/objc/objc-api.h new file mode 100644 index 0000000..e0e49e2 --- /dev/null +++ b/contrib/libobjc/objc/objc-api.h @@ -0,0 +1,626 @@ +/* GNU Objective-C Runtime API. + Copyright (C) 1993, 1995, 1996, 1997, 2002, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#ifndef __objc_api_INCLUDE_GNU +#define __objc_api_INCLUDE_GNU + +#include "objc.h" +#include "hash.h" +#include "thr.h" +#include "objc-decls.h" +#include <stdio.h> +#include <stdarg.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* For functions which return Method_t */ +#define METHOD_NULL (Method_t)0 + /* Boolean typedefs */ +/* +** Method descriptor returned by introspective Object methods. +** This is really just the first part of the more complete objc_method +** structure defined below and used internally by the runtime. +*/ +struct objc_method_description +{ + SEL name; /* this is a selector, not a string */ + char *types; /* type encoding */ +}; + +/* Filer types used to describe Ivars and Methods. */ +#define _C_ID '@' +#define _C_CLASS '#' +#define _C_SEL ':' +#define _C_CHR 'c' +#define _C_UCHR 'C' +#define _C_SHT 's' +#define _C_USHT 'S' +#define _C_INT 'i' +#define _C_UINT 'I' +#define _C_LNG 'l' +#define _C_ULNG 'L' +#define _C_LNG_LNG 'q' +#define _C_ULNG_LNG 'Q' +#define _C_FLT 'f' +#define _C_DBL 'd' +#define _C_BFLD 'b' +#define _C_BOOL 'B' +#define _C_VOID 'v' +#define _C_UNDEF '?' +#define _C_PTR '^' +#define _C_CHARPTR '*' +#define _C_ATOM '%' +#define _C_ARY_B '[' +#define _C_ARY_E ']' +#define _C_UNION_B '(' +#define _C_UNION_E ')' +#define _C_STRUCT_B '{' +#define _C_STRUCT_E '}' +#define _C_VECTOR '!' +#define _C_COMPLEX 'j' + + +/* +** Error handling +** +** Call objc_error() or objc_verror() to record an error; this error +** routine will generally exit the program but not necessarily if the +** user has installed his own error handler. +** +** Call objc_set_error_handler to assign your own function for +** handling errors. The function should return YES if it is ok +** to continue execution, or return NO or just abort if the +** program should be stopped. The default error handler is just to +** print a message on stderr. +** +** The error handler function should be of type objc_error_handler +** The first parameter is an object instance of relevance. +** The second parameter is an error code. +** The third parameter is a format string in the printf style. +** The fourth parameter is a variable list of arguments. +*/ +extern void objc_error(id object, int code, const char* fmt, ...); +extern void objc_verror(id object, int code, const char* fmt, va_list ap); +typedef BOOL (*objc_error_handler)(id, int code, const char *fmt, va_list ap); +extern objc_error_handler objc_set_error_handler(objc_error_handler func); + +/* +** Error codes +** These are used by the runtime library, and your +** error handling may use them to determine if the error is +** hard or soft thus whether execution can continue or abort. +*/ +#define OBJC_ERR_UNKNOWN 0 /* Generic error */ + +#define OBJC_ERR_OBJC_VERSION 1 /* Incorrect runtime version */ +#define OBJC_ERR_GCC_VERSION 2 /* Incorrect compiler version */ +#define OBJC_ERR_MODULE_SIZE 3 /* Bad module size */ +#define OBJC_ERR_PROTOCOL_VERSION 4 /* Incorrect protocol version */ + +#define OBJC_ERR_MEMORY 10 /* Out of memory */ + +#define OBJC_ERR_RECURSE_ROOT 20 /* Attempt to archive the root + object more than once. */ +#define OBJC_ERR_BAD_DATA 21 /* Didn't read expected data */ +#define OBJC_ERR_BAD_KEY 22 /* Bad key for object */ +#define OBJC_ERR_BAD_CLASS 23 /* Unknown class */ +#define OBJC_ERR_BAD_TYPE 24 /* Bad type specification */ +#define OBJC_ERR_NO_READ 25 /* Cannot read stream */ +#define OBJC_ERR_NO_WRITE 26 /* Cannot write stream */ +#define OBJC_ERR_STREAM_VERSION 27 /* Incorrect stream version */ +#define OBJC_ERR_BAD_OPCODE 28 /* Bad opcode */ + +#define OBJC_ERR_UNIMPLEMENTED 30 /* Method is not implemented */ + +#define OBJC_ERR_BAD_STATE 40 /* Bad thread state */ + +/* +** Set this variable nonzero to print a line describing each +** message that is sent. (this is currently disabled) +*/ +extern BOOL objc_trace; + + +/* For every class which happens to have statically allocated instances in + this module, one OBJC_STATIC_INSTANCES is allocated by the compiler. + INSTANCES is NULL terminated and points to all statically allocated + instances of this class. */ +struct objc_static_instances +{ + char *class_name; +#ifdef __cplusplus + id instances[1]; +#else + id instances[0]; +#endif +}; + +/* +** Whereas a Module (defined further down) is the root (typically) of a file, +** a Symtab is the root of the class and category definitions within the +** module. +** +** A Symtab contains a variable length array of pointers to classes and +** categories defined in the module. +*/ +typedef struct objc_symtab { + unsigned long sel_ref_cnt; /* Unknown. */ + SEL refs; /* Unknown. */ + unsigned short cls_def_cnt; /* Number of classes compiled + (defined) in the module. */ + unsigned short cat_def_cnt; /* Number of categories + compiled (defined) in the + module. */ + + void *defs[1]; /* Variable array of pointers. + cls_def_cnt of type Class + followed by cat_def_cnt of + type Category_t, followed + by a NULL terminated array + of objc_static_instances. */ +} Symtab, *Symtab_t; + + +/* +** The compiler generates one of these structures for each module that +** composes the executable (eg main.m). +** +** This data structure is the root of the definition tree for the module. +** +** A collect program runs between ld stages and creates a ObjC ctor array. +** That array holds a pointer to each module structure of the executable. +*/ +typedef struct objc_module { + unsigned long version; /* Compiler revision. */ + unsigned long size; /* sizeof(Module). */ + const char* name; /* Name of the file where the + module was generated. The + name includes the path. */ + + Symtab_t symtab; /* Pointer to the Symtab of + the module. The Symtab + holds an array of + pointers to + the classes and categories + defined in the module. */ +} Module, *Module_t; + + +/* +** The compiler generates one of these structures for a class that has +** instance variables defined in its specification. +*/ +typedef struct objc_ivar { + const char* ivar_name; /* Name of the instance + variable as entered in the + class definition. */ + const char* ivar_type; /* Description of the Ivar's + type. Useful for + debuggers. */ + int ivar_offset; /* Byte offset from the base + address of the instance + structure to the variable. */ +} *Ivar_t; + +typedef struct objc_ivar_list { + int ivar_count; /* Number of structures (Ivar) + contained in the list. One + structure per instance + variable defined in the + class. */ + struct objc_ivar ivar_list[1]; /* Variable length + structure. */ +} IvarList, *IvarList_t; + + +/* +** The compiler generates one (or more) of these structures for a class that +** has methods defined in its specification. +** +** The implementation of a class can be broken into separate pieces in a file +** and categories can break them across modules. To handle this problem is a +** singly linked list of methods. +*/ +typedef struct objc_method { + SEL method_name; /* This variable is the method's + name. It is a char*. + The unique integer passed to + objc_msg_send is a char* too. + It is compared against + method_name using strcmp. */ + const char* method_types; /* Description of the method's + parameter list. Useful for + debuggers. */ + IMP method_imp; /* Address of the method in the + executable. */ +} Method, *Method_t; + +typedef struct objc_method_list { + struct objc_method_list* method_next; /* This variable is used to link + a method list to another. It + is a singly linked list. */ + int method_count; /* Number of methods defined in + this structure. */ + Method method_list[1]; /* Variable length + structure. */ +} MethodList, *MethodList_t; + +struct objc_protocol_list { + struct objc_protocol_list *next; + size_t count; + Protocol *list[1]; +}; + +/* +** This is used to assure consistent access to the info field of +** classes +*/ +#ifndef HOST_BITS_PER_LONG +#define HOST_BITS_PER_LONG (sizeof(long)*8) +#endif + +#define __CLS_INFO(cls) ((cls)->info) +#define __CLS_ISINFO(cls, mask) ((__CLS_INFO(cls)&mask)==mask) +#define __CLS_SETINFO(cls, mask) (__CLS_INFO(cls) |= mask) + +/* The structure is of type MetaClass */ +#define _CLS_META 0x2L +#define CLS_ISMETA(cls) ((cls)&&__CLS_ISINFO(cls, _CLS_META)) + + +/* The structure is of type Class */ +#define _CLS_CLASS 0x1L +#define CLS_ISCLASS(cls) ((cls)&&__CLS_ISINFO(cls, _CLS_CLASS)) + +/* +** The class is initialized within the runtime. This means that +** it has had correct super and sublinks assigned +*/ +#define _CLS_RESOLV 0x8L +#define CLS_ISRESOLV(cls) __CLS_ISINFO(cls, _CLS_RESOLV) +#define CLS_SETRESOLV(cls) __CLS_SETINFO(cls, _CLS_RESOLV) + +/* +** The class has been send a +initialize message or a such is not +** defined for this class +*/ +#define _CLS_INITIALIZED 0x04L +#define CLS_ISINITIALIZED(cls) __CLS_ISINFO(cls, _CLS_INITIALIZED) +#define CLS_SETINITIALIZED(cls) __CLS_SETINFO(cls, _CLS_INITIALIZED) + +/* +** The class number of this class. This must be the same for both the +** class and its meta class object +*/ +#define CLS_GETNUMBER(cls) (__CLS_INFO(cls) >> (HOST_BITS_PER_LONG/2)) +#define CLS_SETNUMBER(cls, num) \ + ({ (cls)->info <<= (HOST_BITS_PER_LONG/2); \ + (cls)->info >>= (HOST_BITS_PER_LONG/2); \ + __CLS_SETINFO(cls, (((unsigned long)num) << (HOST_BITS_PER_LONG/2))); }) + +/* +** The compiler generates one of these structures for each category. A class +** may have many categories and contain both instance and factory methods. +*/ +typedef struct objc_category { + const char* category_name; /* Name of the category. Name + contained in the () of the + category definition. */ + const char* class_name; /* Name of the class to which + the category belongs. */ + MethodList_t instance_methods; /* Linked list of instance + methods defined in the + category. NULL indicates no + instance methods defined. */ + MethodList_t class_methods; /* Linked list of factory + methods defined in the + category. NULL indicates no + class methods defined. */ + struct objc_protocol_list *protocols; /* List of Protocols + conformed to */ +} Category, *Category_t; + +/* +** Structure used when a message is send to a class's super class. The +** compiler generates one of these structures and passes it to +** objc_msg_super. +*/ +typedef struct objc_super { + id self; /* Id of the object sending + the message. */ +#ifdef __cplusplus + Class super_class; +#else + Class class; /* Object's super class. */ +#endif +} Super, *Super_t; + +IMP objc_msg_lookup_super(Super_t super, SEL sel); + +retval_t objc_msg_sendv(id, SEL, arglist_t); + + + +/* +** This is a hook which is called by objc_lookup_class and +** objc_get_class if the runtime is not able to find the class. +** This may e.g. try to load in the class using dynamic loading. +** The function is guaranteed to be passed a non-NULL name string. +*/ +objc_EXPORT Class (*_objc_lookup_class)(const char *name); + +/* +** This is a hook which is called by __objc_exec_class every time a class +** or a category is loaded into the runtime. This may e.g. help a +** dynamic loader determine the classes that have been loaded when +** an object file is dynamically linked in. +*/ +objc_EXPORT void (*_objc_load_callback)(Class _class, Category* category); + +/* +** Hook functions for allocating, copying and disposing of instances +*/ +objc_EXPORT id (*_objc_object_alloc)(Class _class); +objc_EXPORT id (*_objc_object_copy)(id object); +objc_EXPORT id (*_objc_object_dispose)(id object); + +/* +** Standard functions for memory allocation and disposal. +** Users should use these functions in their ObjC programs so +** that they work properly with garbage collectors as well as +** can take advantage of the exception/error handling available. +*/ +void * +objc_malloc(size_t size); + +void * +objc_atomic_malloc(size_t size); + +void * +objc_valloc(size_t size); + +void * +objc_realloc(void *mem, size_t size); + +void * +objc_calloc(size_t nelem, size_t size); + +void +objc_free(void *mem); + +/* +** Hook functions for memory allocation and disposal. +** This makes it easy to substitute garbage collection systems +** such as Boehm's GC by assigning these function pointers +** to the GC's allocation routines. By default these point +** to the ANSI standard malloc, realloc, free, etc. +** +** Users should call the normal objc routines above for +** memory allocation and disposal within their programs. +*/ +objc_EXPORT void *(*_objc_malloc)(size_t); +objc_EXPORT void *(*_objc_atomic_malloc)(size_t); +objc_EXPORT void *(*_objc_valloc)(size_t); +objc_EXPORT void *(*_objc_realloc)(void *, size_t); +objc_EXPORT void *(*_objc_calloc)(size_t, size_t); +objc_EXPORT void (*_objc_free)(void *); + +/* +** Hook for method forwarding. This makes it easy to substitute a +** library, such as ffcall, that implements closures, thereby avoiding +** gcc's __builtin_apply problems. +*/ +objc_EXPORT IMP (*__objc_msg_forward)(SEL); + +Method_t class_get_class_method(MetaClass _class, SEL aSel); + +Method_t class_get_instance_method(Class _class, SEL aSel); + +Class class_pose_as(Class impostor, Class superclass); + +Class objc_get_class(const char *name); + +Class objc_lookup_class(const char *name); + +Class objc_next_class(void **enum_state); + +const char *sel_get_name(SEL selector); + +const char *sel_get_type(SEL selector); + +SEL sel_get_uid(const char *name); + +SEL sel_get_any_uid(const char *name); + +SEL sel_get_any_typed_uid(const char *name); + +SEL sel_get_typed_uid(const char *name, const char*); + +SEL sel_register_name(const char *name); + +SEL sel_register_typed_name(const char *name, const char*type); + + +BOOL sel_is_mapped (SEL aSel); + +extern id class_create_instance(Class _class); + +static inline const char * +class_get_class_name(Class _class) +{ + return CLS_ISCLASS(_class)?_class->name:((_class==Nil)?"Nil":0); +} + +static inline long +class_get_instance_size(Class _class) +{ + return CLS_ISCLASS(_class)?_class->instance_size:0; +} + +static inline MetaClass +class_get_meta_class(Class _class) +{ + return CLS_ISCLASS(_class)?_class->class_pointer:Nil; +} + +static inline Class +class_get_super_class(Class _class) +{ + return CLS_ISCLASS(_class)?_class->super_class:Nil; +} + +static inline int +class_get_version(Class _class) +{ + return CLS_ISCLASS(_class)?_class->version:-1; +} + +static inline BOOL +class_is_class(Class _class) +{ + return CLS_ISCLASS(_class); +} + +static inline BOOL +class_is_meta_class(Class _class) +{ + return CLS_ISMETA(_class); +} + + +static inline void +class_set_version(Class _class, long version) +{ + if (CLS_ISCLASS(_class)) + _class->version = version; +} + +static inline void * +class_get_gc_object_type (Class _class) +{ + return CLS_ISCLASS(_class) ? _class->gc_object_type : NULL; +} + +/* Mark the instance variable as innaccessible to the garbage collector */ +extern void class_ivar_set_gcinvisible (Class _class, + const char* ivarname, + BOOL gcInvisible); + +static inline IMP +method_get_imp(Method_t method) +{ + return (method!=METHOD_NULL)?method->method_imp:(IMP)0; +} + +IMP get_imp (Class _class, SEL sel); + +/* Redefine on NeXTSTEP so as not to conflict with system function */ +#ifdef __NeXT__ +#define object_copy gnu_object_copy +#define object_dispose gnu_object_dispose +#endif + +id object_copy(id object); + +id object_dispose(id object); + +static inline Class +object_get_class(id object) +{ + return ((object!=nil) + ? (CLS_ISCLASS(object->class_pointer) + ? object->class_pointer + : (CLS_ISMETA(object->class_pointer) + ? (Class)object + : Nil)) + : Nil); +} + +static inline const char * +object_get_class_name(id object) +{ + return ((object!=nil)?(CLS_ISCLASS(object->class_pointer) + ?object->class_pointer->name + :((Class)object)->name) + :"Nil"); +} + +static inline MetaClass +object_get_meta_class(id object) +{ + return ((object!=nil)?(CLS_ISCLASS(object->class_pointer) + ?object->class_pointer->class_pointer + :(CLS_ISMETA(object->class_pointer) + ?object->class_pointer + :Nil)) + :Nil); +} + +static inline Class +object_get_super_class +(id object) +{ + return ((object!=nil)?(CLS_ISCLASS(object->class_pointer) + ?object->class_pointer->super_class + :(CLS_ISMETA(object->class_pointer) + ?((Class)object)->super_class + :Nil)) + :Nil); +} + +static inline BOOL +object_is_class (id object) +{ + return ((object != nil) && CLS_ISMETA (object->class_pointer)); +} + +static inline BOOL +object_is_instance (id object) +{ + return ((object != nil) && CLS_ISCLASS (object->class_pointer)); +} + +static inline BOOL +object_is_meta_class (id object) +{ + return ((object != nil) + && !object_is_instance (object) + && !object_is_class (object)); +} + +struct sarray* +objc_get_uninstalled_dtable(void); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* not __objc_api_INCLUDE_GNU */ + + + diff --git a/contrib/libobjc/objc/objc-decls.h b/contrib/libobjc/objc/objc-decls.h new file mode 100644 index 0000000..52938a2 --- /dev/null +++ b/contrib/libobjc/objc/objc-decls.h @@ -0,0 +1,47 @@ +/* GNU Objective-C Extern helpers for Win32. + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#ifndef __objc_decls_INCLUDE_GNU +#define __objc_decls_INCLUDE_GNU + +#if defined (_WIN32) || defined (__WIN32__) || defined (WIN32) + +# ifdef DLL_EXPORT /* defined by libtool (if required) */ +# define objc_EXPORT __declspec(dllexport) +# define objc_DECLARE __declspec(dllexport) +#else +# define objc_EXPORT extern __declspec(dllimport) +# define objc_DECLARE extern __declspec(dllimport) +#endif + +#else + +# define objc_EXPORT extern +# define objc_DECLARE + +#endif + +#endif /* __objc_decls_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/objc-list.h b/contrib/libobjc/objc/objc-list.h new file mode 100644 index 0000000..051e1c2 --- /dev/null +++ b/contrib/libobjc/objc/objc-list.h @@ -0,0 +1,156 @@ +/* Generic single linked list to keep various information + Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#ifndef __GNU_OBJC_LIST_H +#define __GNU_OBJC_LIST_H + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +struct objc_list { + void *head; + struct objc_list *tail; +}; + +/* Return a cons cell produced from (head . tail) */ + +static inline struct objc_list* +list_cons(void* head, struct objc_list* tail) +{ + struct objc_list* cell; + + cell = (struct objc_list*)objc_malloc(sizeof(struct objc_list)); + cell->head = head; + cell->tail = tail; + return cell; +} + +/* Return the length of a list, list_length(NULL) returns zero */ + +static inline int +list_length(struct objc_list* list) +{ + int i = 0; + while(list) + { + i += 1; + list = list->tail; + } + return i; +} + +/* Return the Nth element of LIST, where N count from zero. If N + larger than the list length, NULL is returned */ + +static inline void* +list_nth(int indx, struct objc_list* list) +{ + while(indx-- != 0) + { + if(list->tail) + list = list->tail; + else + return 0; + } + return list->head; +} + +/* Remove the element at the head by replacing it by its successor */ + +static inline void +list_remove_head(struct objc_list** list) +{ + if ((*list)->tail) + { + struct objc_list* tail = (*list)->tail; /* fetch next */ + *(*list) = *tail; /* copy next to list head */ + objc_free(tail); /* free next */ + } + else /* only one element in list */ + { + objc_free(*list); + (*list) = 0; + } +} + + +/* Remove the element with `car' set to ELEMENT */ + +static inline void +list_remove_elem(struct objc_list** list, void* elem) +{ + while (*list) { + if ((*list)->head == elem) + list_remove_head(list); + list = &((*list)->tail); + } +} + +/* Map FUNCTION over all elements in LIST */ + +static inline void +list_mapcar(struct objc_list* list, void(*function)(void*)) +{ + while(list) + { + (*function)(list->head); + list = list->tail; + } +} + +/* Return element that has ELEM as car */ + +static inline struct objc_list** +list_find(struct objc_list** list, void* elem) +{ + while(*list) + { + if ((*list)->head == elem) + return list; + list = &((*list)->tail); + } + return NULL; +} + +/* Free list (backwards recursive) */ + +static void +list_free(struct objc_list* list) +{ + if(list) + { + list_free(list->tail); + objc_free(list); + } +} + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* not __GNU_OBJC_LIST_H */ diff --git a/contrib/libobjc/objc/objc.h b/contrib/libobjc/objc/objc.h new file mode 100644 index 0000000..ee7612c --- /dev/null +++ b/contrib/libobjc/objc/objc.h @@ -0,0 +1,165 @@ +/* Basic data types for Objective C. + Copyright (C) 1993, 1995, 1996, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#ifndef __objc_INCLUDE_GNU +#define __objc_INCLUDE_GNU + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stddef.h> + +/* +** Definition of the boolean type. +*/ +#ifdef __vxworks +typedef int BOOL; +#else +typedef unsigned char BOOL; +#endif +#define YES (BOOL)1 +#define NO (BOOL)0 + +/* +** Definition of a selector. Selectors themselves are not unique, but +** the sel_id is a unique identifier. +*/ +typedef const struct objc_selector +{ + void *sel_id; + const char *sel_types; +} *SEL; + +inline static BOOL +sel_eq (SEL s1, SEL s2) +{ + if (s1 == 0 || s2 == 0) + return s1 == s2; + else + return s1->sel_id == s2->sel_id; +} + + +/* +** ObjC uses this typedef for untyped instances. +*/ +typedef struct objc_object { + struct objc_class* class_pointer; +} *id; + +/* +** Definition of method type. When retrieving the implementation of a +** method, this is type of the pointer returned. The idea of the +** definition of IMP is to represent a 'pointer to a general function +** taking an id, a SEL, followed by other unspecified arguments'. You +** must always cast an IMP to a pointer to a function taking the +** appropriate, specific types for that function, before calling it - +** to make sure the appropriate arguments are passed to it. The code +** generated by the compiler to perform method calls automatically +** does this cast inside method calls. +*/ +typedef id (*IMP)(id, SEL, ...); + +/* +** More simple types... +*/ +#define nil (id)0 /* id of Nil instance */ +#define Nil (Class)0 /* id of Nil class */ +typedef char *STR; /* String alias */ + +/* +** The compiler generates one of these structures for each class. +** +** This structure is the definition for classes. +** +** This structure is generated by the compiler in the executable and used by +** the run-time during normal messaging operations. Therefore some members +** change type. The compiler generates "char* const" and places a string in +** the following member variables: super_class. +*/ +typedef struct objc_class *MetaClass; +typedef struct objc_class *Class; +struct objc_class { + MetaClass class_pointer; /* Pointer to the class's + meta class. */ + struct objc_class* super_class; /* Pointer to the super + class. NULL for class + Object. */ + const char* name; /* Name of the class. */ + long version; /* Unknown. */ + unsigned long info; /* Bit mask. See class masks + defined above. */ + long instance_size; /* Size in bytes of the class. + The sum of the class + definition and all super + class definitions. */ + struct objc_ivar_list* ivars; /* Pointer to a structure that + describes the instance + variables in the class + definition. NULL indicates + no instance variables. Does + not include super class + variables. */ + struct objc_method_list* methods; /* Linked list of instance + methods defined for the + class. */ + struct sarray * dtable; /* Pointer to instance + method dispatch table. */ + struct objc_class* subclass_list; /* Subclasses */ + struct objc_class* sibling_class; + + struct objc_protocol_list *protocols; /* Protocols conformed to */ + void* gc_object_type; +}; + +#ifndef __OBJC__ +typedef struct objc_protocol { + struct objc_class* class_pointer; + char *protocol_name; + struct objc_protocol_list *protocol_list; + struct objc_method_description_list *instance_methods, *class_methods; +} Protocol; + +#else /* __OBJC__ */ +@class Protocol; +#endif + +typedef void* retval_t; /* return value */ +typedef void(*apply_t)(void); /* function pointer */ +typedef union arglist { + char *arg_ptr; + char arg_regs[sizeof (char*)]; +} *arglist_t; /* argument frame */ + + +IMP objc_msg_lookup(id receiver, SEL op); + +#ifdef __cplusplus +} +#endif + +#endif /* not __objc_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/runtime.h b/contrib/libobjc/objc/runtime.h new file mode 100644 index 0000000..3582d1d --- /dev/null +++ b/contrib/libobjc/objc/runtime.h @@ -0,0 +1,96 @@ +/* GNU Objective C Runtime internal declarations + Copyright (C) 1993, 1995, 1996, 1997, 2002, 2004 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#ifndef __objc_runtime_INCLUDE_GNU +#define __objc_runtime_INCLUDE_GNU + +#include <stdarg.h> /* for varargs and va_list's */ + +#include <stdio.h> +#include <ctype.h> + +#include <stddef.h> /* so noone else will get system versions */ +#include <assert.h> + +#include "objc.h" /* core data types */ +#include "objc-api.h" /* runtime api functions */ + +#include "thr.h" /* thread and mutex support */ + +#include "hash.h" /* hash structures */ +#include "objc-list.h" /* linear lists */ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +extern void __objc_add_class_to_hash(Class); /* (objc-class.c) */ +extern void __objc_init_selector_tables(void); /* (objc-sel.c) */ +extern void __objc_init_class_tables(void); /* (objc-class.c) */ +extern void __objc_init_dispatch_tables(void); /* (objc-dispatch.c) */ +extern void __objc_install_premature_dtable(Class); /* (objc-dispatch.c) */ +extern void __objc_resolve_class_links(void); /* (objc-class.c) */ +extern void __objc_register_selectors_from_class(Class); /* (objc-sel.c) */ +extern void __objc_register_selectors_from_list (MethodList_t); /* (selector.c) */ +extern void __objc_update_dispatch_table_for_class (Class);/* (objc-msg.c) */ + +extern int __objc_init_thread_system(void); /* thread.c */ +extern int __objc_fini_thread_system(void); /* thread.c */ +extern void __objc_print_dtable_stats(void); /* sendmsg.c */ + +extern void class_add_method_list(Class, MethodList_t); + +/* Registering instance methods as class methods for root classes */ +extern void __objc_register_instance_methods_to_class(Class); +extern Method_t search_for_method_in_list(MethodList_t list, SEL op); + +/* True when class links has been resolved */ +extern BOOL __objc_class_links_resolved; + +/* Number of selectors stored in each of the selector tables */ +extern unsigned int __objc_selector_max_index; + +/* Mutex locking __objc_selector_max_index and its arrays. */ +extern objc_mutex_t __objc_runtime_mutex; + +/* Number of threads which are alive. */ +extern int __objc_runtime_threads_alive; + +#ifdef DEBUG +#define DEBUG_PRINTF(format, args...) printf (format, ## args) +#else +#define DEBUG_PRINTF(format, args...) +#endif + +BOOL __objc_responds_to (id object, SEL sel); /* for internal use only! */ +SEL __sel_register_typed_name (const char*, const char*, + struct objc_selector*, BOOL is_const); +extern void __objc_generate_gc_type_description (Class); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* not __objc_runtime_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/sarray.h b/contrib/libobjc/objc/sarray.h new file mode 100644 index 0000000..fe66b2e --- /dev/null +++ b/contrib/libobjc/objc/sarray.h @@ -0,0 +1,244 @@ +/* Sparse Arrays for Objective C dispatch tables + Copyright (C) 1993, 1995, 1996, 2004 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#ifndef __sarray_INCLUDE_GNU +#define __sarray_INCLUDE_GNU + +#include "thr.h" + +#define OBJC_SPARSE2 /* 2-level sparse array */ +/* #define OBJC_SPARSE3 */ /* 3-level sparse array */ + +#ifdef OBJC_SPARSE2 +extern const char* __objc_sparse2_id; +#endif + +#ifdef OBJC_SPARSE3 +extern const char* __objc_sparse3_id; +#endif + +#include <stddef.h> +#include <assert.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +extern int nbuckets; /* for stats */ +extern int nindices; +extern int narrays; +extern int idxsize; + +/* An unsigned integer of same size as a pointer */ +#define SIZET_BITS (sizeof(size_t)*8) + +#if defined(__sparc__) || defined(OBJC_SPARSE2) +#define PRECOMPUTE_SELECTORS +#endif + +#ifdef OBJC_SPARSE3 + +/* Buckets are 8 words each */ +#define BUCKET_BITS 3 +#define BUCKET_SIZE (1<<BUCKET_BITS) +#define BUCKET_MASK (BUCKET_SIZE-1) + +/* Indices are 16 words each */ +#define INDEX_BITS 4 +#define INDEX_SIZE (1<<INDEX_BITS) +#define INDEX_MASK (INDEX_SIZE-1) + +#define INDEX_CAPACITY (BUCKET_SIZE*INDEX_SIZE) + +#else /* OBJC_SPARSE2 */ + +/* Buckets are 32 words each */ +#define BUCKET_BITS 5 +#define BUCKET_SIZE (1<<BUCKET_BITS) +#define BUCKET_MASK (BUCKET_SIZE-1) + +#endif /* OBJC_SPARSE2 */ + +typedef size_t sidx; + +#ifdef PRECOMPUTE_SELECTORS + +struct soffset { +#ifdef OBJC_SPARSE3 + unsigned int unused : SIZET_BITS/4; + unsigned int eoffset : SIZET_BITS/4; + unsigned int boffset : SIZET_BITS/4; + unsigned int ioffset : SIZET_BITS/4; +#else /* OBJC_SPARSE2 */ +#ifdef __sparc__ + unsigned long boffset : (SIZET_BITS - 2) - BUCKET_BITS; + unsigned int eoffset : BUCKET_BITS; + unsigned int unused : 2; +#else + unsigned int boffset : SIZET_BITS/2; + unsigned int eoffset : SIZET_BITS/2; +#endif +#endif /* OBJC_SPARSE2 */ +}; + +union sofftype { + struct soffset off; + sidx idx; +}; + +#endif /* not PRECOMPUTE_SELECTORS */ + +union sversion { + int version; + void *next_free; +}; + +struct sbucket { + void* elems[BUCKET_SIZE]; /* elements stored in array */ + union sversion version; /* used for copy-on-write */ +}; + +#ifdef OBJC_SPARSE3 + +struct sindex { + struct sbucket* buckets[INDEX_SIZE]; + union sversion version; /* used for copy-on-write */ +}; + +#endif /* OBJC_SPARSE3 */ + +struct sarray { +#ifdef OBJC_SPARSE3 + struct sindex** indices; + struct sindex* empty_index; +#else /* OBJC_SPARSE2 */ + struct sbucket** buckets; +#endif /* OBJC_SPARSE2 */ + struct sbucket* empty_bucket; + union sversion version; /* used for copy-on-write */ + short ref_count; + struct sarray* is_copy_of; + size_t capacity; +}; + +struct sarray* sarray_new(int, void* default_element); +void sarray_free(struct sarray*); +struct sarray* sarray_lazy_copy(struct sarray*); +void sarray_realloc(struct sarray*, int new_size); +void sarray_at_put(struct sarray*, sidx indx, void* elem); +void sarray_at_put_safe(struct sarray*, sidx indx, void* elem); + +struct sarray* sarray_hard_copy(struct sarray*); /* ... like the name? */ +void sarray_remove_garbage(void); + + +#ifdef PRECOMPUTE_SELECTORS +/* Transform soffset values to ints and vica verca */ +static inline unsigned int +soffset_decode(sidx indx) +{ + union sofftype x; + x.idx = indx; +#ifdef OBJC_SPARSE3 + return x.off.eoffset + + (x.off.boffset*BUCKET_SIZE) + + (x.off.ioffset*INDEX_CAPACITY); +#else /* OBJC_SPARSE2 */ + return x.off.eoffset + (x.off.boffset*BUCKET_SIZE); +#endif /* OBJC_SPARSE2 */ +} + +static inline sidx +soffset_encode(size_t offset) +{ + union sofftype x; + x.off.eoffset = offset%BUCKET_SIZE; +#ifdef OBJC_SPARSE3 + x.off.boffset = (offset/BUCKET_SIZE)%INDEX_SIZE; + x.off.ioffset = offset/INDEX_CAPACITY; +#else /* OBJC_SPARSE2 */ + x.off.boffset = offset/BUCKET_SIZE; +#endif + return (sidx)x.idx; +} + +#else /* not PRECOMPUTE_SELECTORS */ + +static inline size_t +soffset_decode(sidx indx) +{ + return indx; +} + +static inline sidx +soffset_encode(size_t offset) +{ + return offset; +} +#endif /* not PRECOMPUTE_SELECTORS */ + +/* Get element from the Sparse array `array' at offset `indx' */ + +static inline void* sarray_get(struct sarray* array, sidx indx) +{ +#ifdef PRECOMPUTE_SELECTORS + union sofftype x; + x.idx = indx; +#ifdef OBJC_SPARSE3 + return + array-> + indices[x.off.ioffset]-> + buckets[x.off.boffset]-> + elems[x.off.eoffset]; +#else /* OBJC_SPARSE2 */ + return array->buckets[x.off.boffset]->elems[x.off.eoffset]; +#endif /* OBJC_SPARSE2 */ +#else /* not PRECOMPUTE_SELECTORS */ +#ifdef OBJC_SPARSE3 + return array-> + indices[indx/INDEX_CAPACITY]-> + buckets[(indx/BUCKET_SIZE)%INDEX_SIZE]-> + elems[indx%BUCKET_SIZE]; +#else /* OBJC_SPARSE2 */ + return array->buckets[indx/BUCKET_SIZE]->elems[indx%BUCKET_SIZE]; +#endif /* not OBJC_SPARSE3 */ +#endif /* not PRECOMPUTE_SELECTORS */ +} + +static inline void* sarray_get_safe(struct sarray* array, sidx indx) +{ + if(soffset_decode(indx) < array->capacity) + return sarray_get(array, indx); + else + return (array->empty_bucket->elems[0]); +} + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __sarray_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/thr.h b/contrib/libobjc/objc/thr.h new file mode 100644 index 0000000..c139926 --- /dev/null +++ b/contrib/libobjc/objc/thr.h @@ -0,0 +1,153 @@ +/* Thread and mutex controls for Objective C. + Copyright (C) 1996, 1997, 2002, 2004 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + + +#ifndef __thread_INCLUDE_GNU +#define __thread_INCLUDE_GNU + +#include "objc.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/************************************************************************* + * Universal static variables: + */ +extern int __objc_thread_exit_status; /* Global exit status. */ + +/******** + * Thread safe implementation types and functions. + */ + +/* Thread priorities */ +#define OBJC_THREAD_INTERACTIVE_PRIORITY 2 +#define OBJC_THREAD_BACKGROUND_PRIORITY 1 +#define OBJC_THREAD_LOW_PRIORITY 0 + +/* A thread */ +typedef void * objc_thread_t; + +/* This structure represents a single mutual exclusion lock. */ +struct objc_mutex +{ + volatile objc_thread_t owner; /* Id of thread that owns. */ + volatile int depth; /* # of acquires. */ + void * backend; /* Specific to backend */ +}; +typedef struct objc_mutex *objc_mutex_t; + +/* This structure represents a single condition mutex */ +struct objc_condition +{ + void * backend; /* Specific to backend */ +}; +typedef struct objc_condition *objc_condition_t; + +/* Frontend mutex functions */ +objc_mutex_t objc_mutex_allocate (void); +int objc_mutex_deallocate (objc_mutex_t mutex); +int objc_mutex_lock (objc_mutex_t mutex); +int objc_mutex_unlock (objc_mutex_t mutex); +int objc_mutex_trylock (objc_mutex_t mutex); + +/* Frontend condition mutex functions */ +objc_condition_t objc_condition_allocate (void); +int objc_condition_deallocate (objc_condition_t condition); +int objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex); +int objc_condition_signal (objc_condition_t condition); +int objc_condition_broadcast (objc_condition_t condition); + +/* Frontend thread functions */ +objc_thread_t objc_thread_detach (SEL selector, id object, id argument); +void objc_thread_yield (void); +int objc_thread_exit (void); +int objc_thread_set_priority (int priority); +int objc_thread_get_priority (void); +void * objc_thread_get_data (void); +int objc_thread_set_data (void *value); +objc_thread_t objc_thread_id (void); +void objc_thread_add (void); +void objc_thread_remove (void); + +/* + Use this to set the hook function that will be called when the + runtime initially becomes multi threaded. + The hook function is only called once, meaning only when the + 2nd thread is spawned, not for each and every thread. + + It returns the previous hook function or NULL if there is none. + + A program outside of the runtime could set this to some function so + it can be informed; for example, the GNUstep Base Library sets it + so it can implement the NSBecomingMultiThreaded notification. + */ +typedef void (*objc_thread_callback) (void); +objc_thread_callback objc_set_thread_callback (objc_thread_callback func); + +/* Backend initialization functions */ +int __objc_init_thread_system (void); +int __objc_fini_thread_system (void); + +/* Backend mutex functions */ +int __objc_mutex_allocate (objc_mutex_t mutex); +int __objc_mutex_deallocate (objc_mutex_t mutex); +int __objc_mutex_lock (objc_mutex_t mutex); +int __objc_mutex_trylock (objc_mutex_t mutex); +int __objc_mutex_unlock (objc_mutex_t mutex); + +/* Backend condition mutex functions */ +int __objc_condition_allocate (objc_condition_t condition); +int __objc_condition_deallocate (objc_condition_t condition); +int __objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex); +int __objc_condition_broadcast (objc_condition_t condition); +int __objc_condition_signal (objc_condition_t condition); + +/* Backend thread functions */ +objc_thread_t __objc_thread_detach (void (*func) (void *arg), void *arg); +int __objc_thread_set_priority (int priority); +int __objc_thread_get_priority (void); +void __objc_thread_yield (void); +int __objc_thread_exit (void); +objc_thread_t __objc_thread_id (void); +int __objc_thread_set_data (void *value); +void * __objc_thread_get_data (void); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* not __thread_INCLUDE_GNU */ diff --git a/contrib/libobjc/objc/typedstream.h b/contrib/libobjc/objc/typedstream.h new file mode 100644 index 0000000..3a5e0b3 --- /dev/null +++ b/contrib/libobjc/objc/typedstream.h @@ -0,0 +1,141 @@ +/* GNU Objective-C Typed Streams interface. + Copyright (C) 1993, 1995, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public +License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled + with GCC to produce an executable, this does not cause the resulting + executable to be covered by the GNU General Public License. This + exception does not however invalidate any other reasons why the + executable file might be covered by the GNU General Public License. */ + +#ifndef __typedstream_INCLUDE_GNU +#define __typedstream_INCLUDE_GNU + +#include "objc.h" +#include "hash.h" + +#include <stdio.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +typedef int (*objc_typed_read_func)(void*, char*, int); +typedef int (*objc_typed_write_func)(void*, const char*, int); +typedef int (*objc_typed_flush_func)(void*); +typedef int (*objc_typed_eof_func)(void*); + +#define OBJC_READONLY 0x01 +#define OBJC_WRITEONLY 0x02 + +#define OBJC_MANAGED_STREAM 0x01 +#define OBJC_FILE_STREAM 0x02 +#define OBJC_MEMORY_STREAM 0x04 + +#define OBJC_TYPED_STREAM_VERSION 0x01 + +typedef struct objc_typed_stream { + void* physical; + cache_ptr object_table; /* read/written objects */ + cache_ptr stream_table; /* other read/written but shared things.. */ + cache_ptr class_table; /* class version mapping */ + cache_ptr object_refs; /* forward references */ + int mode; /* OBJC_READONLY or OBJC_WRITEONLY */ + int type; /* MANAGED, FILE, MEMORY etc bit string */ + int version; /* version used when writing */ + int writing_root_p; + objc_typed_read_func read; + objc_typed_write_func write; + objc_typed_eof_func eof; + objc_typed_flush_func flush; +} TypedStream; + +/* opcode masks */ +#define _B_VALUE 0x1fU +#define _B_CODE 0xe0U +#define _B_SIGN 0x10U +#define _B_NUMBER 0x0fU + +/* standard opcodes */ +#define _B_INVALID 0x00U +#define _B_SINT 0x20U +#define _B_NINT 0x40U +#define _B_SSTR 0x60U +#define _B_NSTR 0x80U +#define _B_RCOMM 0xa0U +#define _B_UCOMM 0xc0U +#define _B_EXT 0xe0U + +/* eXtension opcodes */ +#define _BX_OBJECT 0x00U +#define _BX_CLASS 0x01U +#define _BX_SEL 0x02U +#define _BX_OBJREF 0x03U +#define _BX_OBJROOT 0x04U +#define _BX_EXT 0x1fU + +/* +** Read and write objects as specified by TYPE. All the `last' +** arguments are pointers to the objects to read/write. +*/ + +int objc_write_type (TypedStream* stream, const char* type, const void* data); +int objc_read_type (TypedStream* stream, const char* type, void* data); + +int objc_write_types (TypedStream* stream, const char* type, ...); +int objc_read_types (TypedStream* stream, const char* type, ...); + +int objc_write_object_reference (TypedStream* stream, id object); +int objc_write_root_object (TypedStream* stream, id object); + +long objc_get_stream_class_version (TypedStream* stream, Class class_type); + + +/* +** Convenience functions +*/ + +int objc_write_array (TypedStream* stream, const char* type, + int count, const void* data); +int objc_read_array (TypedStream* stream, const char* type, + int count, void* data); + +int objc_write_object (TypedStream* stream, id object); +int objc_read_object (TypedStream* stream, id* object); + + + +/* +** Open a typed stream for reading or writing. MODE may be either of +** OBJC_READONLY or OBJC_WRITEONLY. +*/ + +TypedStream* objc_open_typed_stream (FILE* physical, int mode); +TypedStream* objc_open_typed_stream_for_file (const char* file_name, int mode); + +void objc_close_typed_stream (TypedStream* stream); + +BOOL objc_end_of_typed_stream (TypedStream* stream); +void objc_flush_typed_stream (TypedStream* stream); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* not __typedstream_INCLUDE_GNU */ diff --git a/contrib/libobjc/objects.c b/contrib/libobjc/objects.c new file mode 100644 index 0000000..7cc99bf --- /dev/null +++ b/contrib/libobjc/objects.c @@ -0,0 +1,103 @@ +/* GNU Objective C Runtime class related functions + Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "tconfig.h" /* include defs of bzero for target */ +#include "objc/objc.h" +#include "objc/runtime.h" /* the kitchen sink */ + +#if OBJC_WITH_GC +# include <gc.h> +#endif + +id __objc_object_alloc (Class); +id __objc_object_dispose (id); +id __objc_object_copy (id); + +id (*_objc_object_alloc) (Class) = __objc_object_alloc; /* !T:SINGLE */ +id (*_objc_object_dispose) (id) = __objc_object_dispose; /* !T:SINGLE */ +id (*_objc_object_copy) (id) = __objc_object_copy; /* !T:SINGLE */ + +id +class_create_instance (Class class) +{ + id new = nil; + +#if OBJC_WITH_GC + if (CLS_ISCLASS (class)) + new = (id) GC_malloc_explicitly_typed (class->instance_size, + class->gc_object_type); +#else + if (CLS_ISCLASS (class)) + new = (*_objc_object_alloc) (class); +#endif + + if (new != nil) + { + memset (new, 0, class->instance_size); + new->class_pointer = class; + } + return new; +} + +id +object_copy (id object) +{ + if ((object != nil) && CLS_ISCLASS (object->class_pointer)) + return (*_objc_object_copy) (object); + else + return nil; +} + +id +object_dispose (id object) +{ + if ((object != nil) && CLS_ISCLASS (object->class_pointer)) + { + if (_objc_object_dispose) + (*_objc_object_dispose) (object); + else + objc_free (object); + } + return nil; +} + +id __objc_object_alloc (Class class) +{ + return (id) objc_malloc (class->instance_size); +} + +id __objc_object_dispose (id object) +{ + objc_free (object); + return 0; +} + +id __objc_object_copy (id object) +{ + id copy = class_create_instance (object->class_pointer); + memcpy (copy, object, object->class_pointer->instance_size); + return copy; +} diff --git a/contrib/libobjc/sarray.c b/contrib/libobjc/sarray.c new file mode 100644 index 0000000..b35772b --- /dev/null +++ b/contrib/libobjc/sarray.c @@ -0,0 +1,518 @@ +/* Sparse Arrays for Objective C dispatch tables + Copyright (C) 1993, 1995, 1996, 2002, 2004 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +#include "objc/sarray.h" +#include "objc/runtime.h" +#include <stdio.h> +#include "assert.h" + +int nbuckets = 0; /* !T:MUTEX */ +int nindices = 0; /* !T:MUTEX */ +int narrays = 0; /* !T:MUTEX */ +int idxsize = 0; /* !T:MUTEX */ + +static void *first_free_data = NULL; /* !T:MUTEX */ + +#ifdef OBJC_SPARSE2 +const char *__objc_sparse2_id = "2 level sparse indices"; +#endif + +#ifdef OBJC_SPARSE3 +const char *__objc_sparse3_id = "3 level sparse indices"; +#endif + +/* This function removes any structures left over from free operations + that were not safe in a multi-threaded environment. */ +void +sarray_remove_garbage (void) +{ + void **vp; + void *np; + + objc_mutex_lock (__objc_runtime_mutex); + + vp = first_free_data; + first_free_data = NULL; + + while (vp) { + np = *vp; + objc_free (vp); + vp = np; + } + + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* Free a block of dynamically allocated memory. If we are in multi-threaded + mode, it is ok to free it. If not, we add it to the garbage heap to be + freed later. */ + +static void +sarray_free_garbage (void *vp) +{ + objc_mutex_lock (__objc_runtime_mutex); + + if (__objc_runtime_threads_alive == 1) { + objc_free (vp); + if (first_free_data) + sarray_remove_garbage (); + } + else { + *(void **)vp = first_free_data; + first_free_data = vp; + } + + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* sarray_at_put : copies data in such a way as to be thread reader safe. */ +void +sarray_at_put (struct sarray *array, sidx index, void *element) +{ +#ifdef OBJC_SPARSE3 + struct sindex **the_index; + struct sindex *new_index; +#endif + struct sbucket **the_bucket; + struct sbucket *new_bucket; +#ifdef OBJC_SPARSE3 + size_t ioffset; +#endif + size_t boffset; + size_t eoffset; +#ifdef PRECOMPUTE_SELECTORS + union sofftype xx; + xx.idx = index; +#ifdef OBJC_SPARSE3 + ioffset = xx.off.ioffset; +#endif + boffset = xx.off.boffset; + eoffset = xx.off.eoffset; +#else /* not PRECOMPUTE_SELECTORS */ +#ifdef OBJC_SPARSE3 + ioffset = index/INDEX_CAPACITY; + boffset = (index/BUCKET_SIZE)%INDEX_SIZE; + eoffset = index%BUCKET_SIZE; +#else + boffset = index/BUCKET_SIZE; + eoffset = index%BUCKET_SIZE; +#endif +#endif /* not PRECOMPUTE_SELECTORS */ + + assert (soffset_decode (index) < array->capacity); /* Range check */ + +#ifdef OBJC_SPARSE3 + the_index = &(array->indices[ioffset]); + the_bucket = &((*the_index)->buckets[boffset]); +#else + the_bucket = &(array->buckets[boffset]); +#endif + + if ((*the_bucket)->elems[eoffset] == element) + return; /* great! we just avoided a lazy copy */ + +#ifdef OBJC_SPARSE3 + + /* First, perform lazy copy/allocation of index if needed */ + + if ((*the_index) == array->empty_index) { + + /* The index was previously empty, allocate a new */ + new_index = (struct sindex *) objc_malloc (sizeof (struct sindex)); + memcpy (new_index, array->empty_index, sizeof (struct sindex)); + new_index->version.version = array->version.version; + *the_index = new_index; /* Prepared for install. */ + the_bucket = &((*the_index)->buckets[boffset]); + + nindices += 1; + } else if ((*the_index)->version.version != array->version.version) { + + /* This index must be lazy copied */ + struct sindex *old_index = *the_index; + new_index = (struct sindex *) objc_malloc (sizeof (struct sindex)); + memcpy (new_index, old_index, sizeof (struct sindex)); + new_index->version.version = array->version.version; + *the_index = new_index; /* Prepared for install. */ + the_bucket = &((*the_index)->buckets[boffset]); + + nindices += 1; + } + +#endif /* OBJC_SPARSE3 */ + + /* next, perform lazy allocation/copy of the bucket if needed */ + + if ((*the_bucket) == array->empty_bucket) { + + /* The bucket was previously empty (or something like that), */ + /* allocate a new. This is the effect of `lazy' allocation */ + new_bucket = (struct sbucket *) objc_malloc (sizeof (struct sbucket)); + memcpy ((void *) new_bucket, (const void *) array->empty_bucket, + sizeof (struct sbucket)); + new_bucket->version.version = array->version.version; + *the_bucket = new_bucket; /* Prepared for install. */ + + nbuckets += 1; + + } else if ((*the_bucket)->version.version != array->version.version) { + + /* Perform lazy copy. */ + struct sbucket *old_bucket = *the_bucket; + new_bucket = (struct sbucket *) objc_malloc (sizeof (struct sbucket)); + memcpy (new_bucket, old_bucket, sizeof (struct sbucket)); + new_bucket->version.version = array->version.version; + *the_bucket = new_bucket; /* Prepared for install. */ + + nbuckets += 1; + + } + (*the_bucket)->elems[eoffset] = element; +} + +void +sarray_at_put_safe (struct sarray *array, sidx index, void *element) +{ + if (soffset_decode (index) >= array->capacity) + sarray_realloc (array, soffset_decode (index) + 1); + sarray_at_put (array, index, element); +} + +struct sarray * +sarray_new (int size, void *default_element) +{ + struct sarray *arr; +#ifdef OBJC_SPARSE3 + size_t num_indices = ((size - 1)/(INDEX_CAPACITY)) + 1; + struct sindex **new_indices; +#else /* OBJC_SPARSE2 */ + size_t num_indices = ((size - 1)/BUCKET_SIZE) + 1; + struct sbucket **new_buckets; +#endif + size_t counter; + + assert (size > 0); + + /* Allocate core array */ + arr = (struct sarray *) objc_malloc (sizeof (struct sarray)); + arr->version.version = 0; + + /* Initialize members */ +#ifdef OBJC_SPARSE3 + arr->capacity = num_indices*INDEX_CAPACITY; + new_indices = (struct sindex **) + objc_malloc (sizeof (struct sindex *) * num_indices); + + arr->empty_index = (struct sindex *) objc_malloc (sizeof (struct sindex)); + arr->empty_index->version.version = 0; + + narrays += 1; + idxsize += num_indices; + nindices += 1; + +#else /* OBJC_SPARSE2 */ + arr->capacity = num_indices*BUCKET_SIZE; + new_buckets = (struct sbucket **) + objc_malloc (sizeof (struct sbucket *) * num_indices); + + narrays += 1; + idxsize += num_indices; + +#endif + + arr->empty_bucket = (struct sbucket *) objc_malloc (sizeof (struct sbucket)); + arr->empty_bucket->version.version = 0; + + nbuckets += 1; + + arr->ref_count = 1; + arr->is_copy_of = (struct sarray *) 0; + + for (counter = 0; counter < BUCKET_SIZE; counter++) + arr->empty_bucket->elems[counter] = default_element; + +#ifdef OBJC_SPARSE3 + for (counter = 0; counter < INDEX_SIZE; counter++) + arr->empty_index->buckets[counter] = arr->empty_bucket; + + for (counter = 0; counter < num_indices; counter++) + new_indices[counter] = arr->empty_index; + +#else /* OBJC_SPARSE2 */ + + for (counter = 0; counter < num_indices; counter++) + new_buckets[counter] = arr->empty_bucket; + +#endif + +#ifdef OBJC_SPARSE3 + arr->indices = new_indices; +#else /* OBJC_SPARSE2 */ + arr->buckets = new_buckets; +#endif + + return arr; +} + + +/* Reallocate the sparse array to hold `newsize' entries + Note: We really allocate and then free. We have to do this to ensure that + any concurrent readers notice the update. */ + +void +sarray_realloc (struct sarray *array, int newsize) +{ +#ifdef OBJC_SPARSE3 + size_t old_max_index = (array->capacity - 1)/INDEX_CAPACITY; + size_t new_max_index = ((newsize - 1)/INDEX_CAPACITY); + size_t rounded_size = (new_max_index + 1) * INDEX_CAPACITY; + + struct sindex **new_indices; + struct sindex **old_indices; + +#else /* OBJC_SPARSE2 */ + size_t old_max_index = (array->capacity - 1)/BUCKET_SIZE; + size_t new_max_index = ((newsize - 1)/BUCKET_SIZE); + size_t rounded_size = (new_max_index + 1) * BUCKET_SIZE; + + struct sbucket **new_buckets; + struct sbucket **old_buckets; + +#endif + + size_t counter; + + assert (newsize > 0); + + /* The size is the same, just ignore the request */ + if (rounded_size <= array->capacity) + return; + + assert (array->ref_count == 1); /* stop if lazy copied... */ + + /* We are asked to extend the array -- allocate new bucket table, */ + /* and insert empty_bucket in newly allocated places. */ + if (rounded_size > array->capacity) + { + +#ifdef OBJC_SPARSE3 + new_max_index += 4; + rounded_size = (new_max_index + 1) * INDEX_CAPACITY; + +#else /* OBJC_SPARSE2 */ + new_max_index += 4; + rounded_size = (new_max_index + 1) * BUCKET_SIZE; +#endif + + /* update capacity */ + array->capacity = rounded_size; + +#ifdef OBJC_SPARSE3 + /* alloc to force re-read by any concurrent readers. */ + old_indices = array->indices; + new_indices = (struct sindex **) + objc_malloc ((new_max_index + 1) * sizeof (struct sindex *)); +#else /* OBJC_SPARSE2 */ + old_buckets = array->buckets; + new_buckets = (struct sbucket **) + objc_malloc ((new_max_index + 1) * sizeof (struct sbucket *)); +#endif + + /* copy buckets below old_max_index (they are still valid) */ + for (counter = 0; counter <= old_max_index; counter++ ) { +#ifdef OBJC_SPARSE3 + new_indices[counter] = old_indices[counter]; +#else /* OBJC_SPARSE2 */ + new_buckets[counter] = old_buckets[counter]; +#endif + } + +#ifdef OBJC_SPARSE3 + /* reset entries above old_max_index to empty_bucket */ + for (counter = old_max_index + 1; counter <= new_max_index; counter++) + new_indices[counter] = array->empty_index; +#else /* OBJC_SPARSE2 */ + /* reset entries above old_max_index to empty_bucket */ + for (counter = old_max_index + 1; counter <= new_max_index; counter++) + new_buckets[counter] = array->empty_bucket; +#endif + +#ifdef OBJC_SPARSE3 + /* install the new indices */ + array->indices = new_indices; +#else /* OBJC_SPARSE2 */ + array->buckets = new_buckets; +#endif + +#ifdef OBJC_SPARSE3 + /* free the old indices */ + sarray_free_garbage (old_indices); +#else /* OBJC_SPARSE2 */ + sarray_free_garbage (old_buckets); +#endif + + idxsize += (new_max_index-old_max_index); + return; + } +} + + +/* Free a sparse array allocated with sarray_new */ + +void +sarray_free (struct sarray *array) { +#ifdef OBJC_SPARSE3 + size_t old_max_index = (array->capacity - 1)/INDEX_CAPACITY; + struct sindex **old_indices; +#else + size_t old_max_index = (array->capacity - 1)/BUCKET_SIZE; + struct sbucket **old_buckets; +#endif + size_t counter = 0; + + assert (array->ref_count != 0); /* Freed multiple times!!! */ + + if (--(array->ref_count) != 0) /* There exists copies of me */ + return; + +#ifdef OBJC_SPARSE3 + old_indices = array->indices; +#else + old_buckets = array->buckets; +#endif + + /* Free all entries that do not point to empty_bucket */ + for (counter = 0; counter <= old_max_index; counter++ ) { +#ifdef OBJC_SPARSE3 + struct sindex *idx = old_indices[counter]; + if ((idx != array->empty_index) && + (idx->version.version == array->version.version)) { + int c2; + for (c2 = 0; c2 < INDEX_SIZE; c2++) { + struct sbucket *bkt = idx->buckets[c2]; + if ((bkt != array->empty_bucket) && + (bkt->version.version == array->version.version)) + { + sarray_free_garbage (bkt); + nbuckets -= 1; + } + } + sarray_free_garbage (idx); + nindices -= 1; + } +#else /* OBJC_SPARSE2 */ + struct sbucket *bkt = array->buckets[counter]; + if ((bkt != array->empty_bucket) && + (bkt->version.version == array->version.version)) + { + sarray_free_garbage (bkt); + nbuckets -= 1; + } +#endif + } + +#ifdef OBJC_SPARSE3 + /* free empty_index */ + if (array->empty_index->version.version == array->version.version) { + sarray_free_garbage (array->empty_index); + nindices -= 1; + } +#endif + + /* free empty_bucket */ + if (array->empty_bucket->version.version == array->version.version) { + sarray_free_garbage (array->empty_bucket); + nbuckets -= 1; + } + idxsize -= (old_max_index + 1); + narrays -= 1; + +#ifdef OBJC_SPARSE3 + /* free bucket table */ + sarray_free_garbage (array->indices); + +#else + /* free bucket table */ + sarray_free_garbage (array->buckets); + +#endif + + /* If this is a copy of another array, we free it (which might just + * decrement its reference count so it will be freed when no longer in use). + */ + if (array->is_copy_of) + sarray_free (array->is_copy_of); + + /* free array */ + sarray_free_garbage (array); +} + +/* This is a lazy copy. Only the core of the structure is actually */ +/* copied. */ + +struct sarray * +sarray_lazy_copy (struct sarray *oarr) +{ + struct sarray *arr; + +#ifdef OBJC_SPARSE3 + size_t num_indices = ((oarr->capacity - 1)/INDEX_CAPACITY) + 1; + struct sindex **new_indices; +#else /* OBJC_SPARSE2 */ + size_t num_indices = ((oarr->capacity - 1)/BUCKET_SIZE) + 1; + struct sbucket **new_buckets; +#endif + + /* Allocate core array */ + arr = (struct sarray *) objc_malloc (sizeof (struct sarray)); /* !!! */ + arr->version.version = oarr->version.version + 1; +#ifdef OBJC_SPARSE3 + arr->empty_index = oarr->empty_index; +#endif + arr->empty_bucket = oarr->empty_bucket; + arr->ref_count = 1; + oarr->ref_count += 1; + arr->is_copy_of = oarr; + arr->capacity = oarr->capacity; + +#ifdef OBJC_SPARSE3 + /* Copy bucket table */ + new_indices = (struct sindex **) + objc_malloc (sizeof (struct sindex *) * num_indices); + memcpy (new_indices, oarr->indices, sizeof (struct sindex *) * num_indices); + arr->indices = new_indices; +#else + /* Copy bucket table */ + new_buckets = (struct sbucket **) + objc_malloc (sizeof (struct sbucket *) * num_indices); + memcpy (new_buckets, oarr->buckets, sizeof (struct sbucket *) * num_indices); + arr->buckets = new_buckets; +#endif + + idxsize += num_indices; + narrays += 1; + + return arr; +} diff --git a/contrib/libobjc/selector.c b/contrib/libobjc/selector.c new file mode 100644 index 0000000..223c710 --- /dev/null +++ b/contrib/libobjc/selector.c @@ -0,0 +1,490 @@ +/* GNU Objective C Runtime selector related functions + Copyright (C) 1993, 1995, 1996, 1997, 2002, 2004 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/runtime.h" +#include "objc/sarray.h" +#include "objc/encoding.h" + +/* Initial selector hash table size. Value doesn't matter much */ +#define SELECTOR_HASH_SIZE 128 + +/* Tables mapping selector names to uid and opposite */ +static struct sarray *__objc_selector_array = 0; /* uid -> sel !T:MUTEX */ +static struct sarray *__objc_selector_names = 0; /* uid -> name !T:MUTEX */ +static cache_ptr __objc_selector_hash = 0; /* name -> uid !T:MUTEX */ + +/* Number of selectors stored in each of the above tables */ +unsigned int __objc_selector_max_index = 0; /* !T:MUTEX */ + +void __objc_init_selector_tables (void) +{ + __objc_selector_array = sarray_new (SELECTOR_HASH_SIZE, 0); + __objc_selector_names = sarray_new (SELECTOR_HASH_SIZE, 0); + __objc_selector_hash + = objc_hash_new (SELECTOR_HASH_SIZE, + (hash_func_type) objc_hash_string, + (compare_func_type) objc_compare_strings); +} + +/* This routine is given a class and records all of the methods in its class + structure in the record table. */ +void +__objc_register_selectors_from_class (Class class) +{ + MethodList_t method_list; + + method_list = class->methods; + while (method_list) + { + __objc_register_selectors_from_list (method_list); + method_list = method_list->method_next; + } +} + + +/* This routine is given a list of methods and records each of the methods in + the record table. This is the routine that does the actual recording + work. + + The name and type pointers in the method list must be permanent and + immutable. + */ +void +__objc_register_selectors_from_list (MethodList_t method_list) +{ + int i = 0; + + objc_mutex_lock (__objc_runtime_mutex); + while (i < method_list->method_count) + { + Method_t method = &method_list->method_list[i]; + if (method->method_name) + { + method->method_name + = __sel_register_typed_name ((const char *) method->method_name, + method->method_types, 0, YES); + } + i += 1; + } + objc_mutex_unlock (__objc_runtime_mutex); +} + + +/* Register instance methods as class methods for root classes */ +void __objc_register_instance_methods_to_class (Class class) +{ + MethodList_t method_list; + MethodList_t class_method_list; + int max_methods_no = 16; + MethodList_t new_list; + Method_t curr_method; + + /* Only if a root class. */ + if (class->super_class) + return; + + /* Allocate a method list to hold the new class methods */ + new_list = objc_calloc (sizeof (struct objc_method_list) + + sizeof (struct objc_method[max_methods_no]), 1); + method_list = class->methods; + class_method_list = class->class_pointer->methods; + curr_method = &new_list->method_list[0]; + + /* Iterate through the method lists for the class */ + while (method_list) + { + int i; + + /* Iterate through the methods from this method list */ + for (i = 0; i < method_list->method_count; i++) + { + Method_t mth = &method_list->method_list[i]; + if (mth->method_name + && ! search_for_method_in_list (class_method_list, + mth->method_name)) + { + /* This instance method isn't a class method. + Add it into the new_list. */ + *curr_method = *mth; + + /* Reallocate the method list if necessary */ + if (++new_list->method_count == max_methods_no) + new_list = + objc_realloc (new_list, sizeof (struct objc_method_list) + + sizeof (struct + objc_method[max_methods_no += 16])); + curr_method = &new_list->method_list[new_list->method_count]; + } + } + + method_list = method_list->method_next; + } + + /* If we created any new class methods + then attach the method list to the class */ + if (new_list->method_count) + { + new_list = + objc_realloc (new_list, sizeof (struct objc_method_list) + + sizeof (struct objc_method[new_list->method_count])); + new_list->method_next = class->class_pointer->methods; + class->class_pointer->methods = new_list; + } + else + objc_free(new_list); + + __objc_update_dispatch_table_for_class (class->class_pointer); +} + + +/* Returns YES iff t1 and t2 have same method types, but we ignore + the argframe layout */ +BOOL +sel_types_match (const char *t1, const char *t2) +{ + if (! t1 || ! t2) + return NO; + while (*t1 && *t2) + { + if (*t1 == '+') t1++; + if (*t2 == '+') t2++; + while (isdigit ((unsigned char) *t1)) t1++; + while (isdigit ((unsigned char) *t2)) t2++; + /* xxx Remove these next two lines when qualifiers are put in + all selectors, not just Protocol selectors. */ + t1 = objc_skip_type_qualifiers (t1); + t2 = objc_skip_type_qualifiers (t2); + if (! *t1 && ! *t2) + return YES; + if (*t1 != *t2) + return NO; + t1++; + t2++; + } + return NO; +} + +/* return selector representing name */ +SEL +sel_get_typed_uid (const char *name, const char *types) +{ + struct objc_list *l; + sidx i; + + objc_mutex_lock (__objc_runtime_mutex); + + i = (sidx) objc_hash_value_for_key (__objc_selector_hash, name); + if (i == 0) + { + objc_mutex_unlock (__objc_runtime_mutex); + return 0; + } + + for (l = (struct objc_list *) sarray_get_safe (__objc_selector_array, i); + l; l = l->tail) + { + SEL s = (SEL) l->head; + if (types == 0 || s->sel_types == 0) + { + if (s->sel_types == types) + { + objc_mutex_unlock (__objc_runtime_mutex); + return s; + } + } + else if (sel_types_match (s->sel_types, types)) + { + objc_mutex_unlock (__objc_runtime_mutex); + return s; + } + } + + objc_mutex_unlock (__objc_runtime_mutex); + return 0; +} + +/* Return selector representing name; prefer a selector with non-NULL type */ +SEL +sel_get_any_typed_uid (const char *name) +{ + struct objc_list *l; + sidx i; + SEL s = NULL; + + objc_mutex_lock (__objc_runtime_mutex); + + i = (sidx) objc_hash_value_for_key (__objc_selector_hash, name); + if (i == 0) + { + objc_mutex_unlock (__objc_runtime_mutex); + return 0; + } + + for (l = (struct objc_list *) sarray_get_safe (__objc_selector_array, i); + l; l = l->tail) + { + s = (SEL) l->head; + if (s->sel_types) + { + objc_mutex_unlock (__objc_runtime_mutex); + return s; + } + } + + objc_mutex_unlock (__objc_runtime_mutex); + return s; +} + +/* return selector representing name */ +SEL +sel_get_any_uid (const char *name) +{ + struct objc_list *l; + sidx i; + + objc_mutex_lock (__objc_runtime_mutex); + + i = (sidx) objc_hash_value_for_key (__objc_selector_hash, name); + if (soffset_decode (i) == 0) + { + objc_mutex_unlock (__objc_runtime_mutex); + return 0; + } + + l = (struct objc_list *) sarray_get_safe (__objc_selector_array, i); + objc_mutex_unlock (__objc_runtime_mutex); + + if (l == 0) + return 0; + + return (SEL) l->head; +} + +/* return selector representing name */ +SEL +sel_get_uid (const char *name) +{ + return sel_register_typed_name (name, 0); +} + +/* Get name of selector. If selector is unknown, the empty string "" + is returned */ +const char *sel_get_name (SEL selector) +{ + const char *ret; + + objc_mutex_lock (__objc_runtime_mutex); + if ((soffset_decode ((sidx)selector->sel_id) > 0) + && (soffset_decode ((sidx)selector->sel_id) <= __objc_selector_max_index)) + ret = sarray_get_safe (__objc_selector_names, (sidx) selector->sel_id); + else + ret = 0; + objc_mutex_unlock (__objc_runtime_mutex); + return ret; +} + +BOOL +sel_is_mapped (SEL selector) +{ + unsigned int idx = soffset_decode ((sidx)selector->sel_id); + return ((idx > 0) && (idx <= __objc_selector_max_index)); +} + + +const char *sel_get_type (SEL selector) +{ + if (selector) + return selector->sel_types; + else + return 0; +} + +/* The uninstalled dispatch table */ +extern struct sarray *__objc_uninstalled_dtable; + +/* __sel_register_typed_name allocates lots of struct objc_selector:s + of 8 (16, if pointers are 64 bits) bytes at startup. To reduce the number + of malloc calls and memory lost to malloc overhead, we allocate + objc_selector:s in blocks here. This is only called from + __sel_register_typed_name, and __sel_register_typed_name may only be + called when __objc_runtime_mutex is locked. + + Note that the objc_selector:s allocated from __sel_register_typed_name + are never freed. + + 62 because 62 * sizeof (struct objc_selector) = 496 (992). This should + let malloc add some overhead and use a nice, round 512 (1024) byte chunk. + */ +#define SELECTOR_POOL_SIZE 62 +static struct objc_selector *selector_pool; +static int selector_pool_left; + +static struct objc_selector * +pool_alloc_selector(void) +{ + if (!selector_pool_left) + { + selector_pool = objc_malloc (sizeof (struct objc_selector) + * SELECTOR_POOL_SIZE); + selector_pool_left = SELECTOR_POOL_SIZE; + } + return &selector_pool[--selector_pool_left]; +} + +/* Store the passed selector name in the selector record and return its + selector value (value returned by sel_get_uid). + Assumes that the calling function has locked down __objc_runtime_mutex. */ +/* is_const parameter tells us if the name and types parameters + are really constant or not. If YES then they are constant and + we can just store the pointers. If NO then we need to copy + name and types because the pointers may disappear later on. */ +SEL +__sel_register_typed_name (const char *name, const char *types, + struct objc_selector *orig, BOOL is_const) +{ + struct objc_selector *j; + sidx i; + struct objc_list *l; + + i = (sidx) objc_hash_value_for_key (__objc_selector_hash, name); + if (soffset_decode (i) != 0) + { + for (l = (struct objc_list *) sarray_get_safe (__objc_selector_array, i); + l; l = l->tail) + { + SEL s = (SEL) l->head; + if (types == 0 || s->sel_types == 0) + { + if (s->sel_types == types) + { + if (orig) + { + orig->sel_id = (void *) i; + return orig; + } + else + return s; + } + } + else if (! strcmp (s->sel_types, types)) + { + if (orig) + { + orig->sel_id = (void *) i; + return orig; + } + else + return s; + } + } + if (orig) + j = orig; + else + j = pool_alloc_selector (); + + j->sel_id = (void *) i; + /* Can we use the pointer or must copy types? Don't copy if NULL */ + if ((is_const) || (types == 0)) + j->sel_types = (const char *) types; + else { + j->sel_types = (char *) objc_malloc (strlen (types) + 1); + strcpy ((char *) j->sel_types, types); + } + l = (struct objc_list *) sarray_get_safe (__objc_selector_array, i); + } + else + { + __objc_selector_max_index += 1; + i = soffset_encode (__objc_selector_max_index); + if (orig) + j = orig; + else + j = pool_alloc_selector (); + + j->sel_id = (void *) i; + /* Can we use the pointer or must copy types? Don't copy if NULL */ + if ((is_const) || (types == 0)) + j->sel_types = (const char *) types; + else { + j->sel_types = (char *) objc_malloc (strlen (types) + 1); + strcpy ((char *) j->sel_types, types); + } + l = 0; + } + + DEBUG_PRINTF ("Record selector %s[%s] as: %ld\n", name, types, + (long) soffset_decode (i)); + + { + int is_new = (l == 0); + const char *new_name; + + /* Can we use the pointer or must copy name? Don't copy if NULL */ + if ((is_const) || (name == 0)) + new_name = name; + else { + new_name = (char *) objc_malloc (strlen (name) + 1); + strcpy ((char *) new_name, name); + } + + l = list_cons ((void *) j, l); + sarray_at_put_safe (__objc_selector_names, i, (void *) new_name); + sarray_at_put_safe (__objc_selector_array, i, (void *) l); + if (is_new) + objc_hash_add (&__objc_selector_hash, (void *) new_name, (void *) i); + } + + sarray_realloc (__objc_uninstalled_dtable, __objc_selector_max_index + 1); + + return (SEL) j; +} + +SEL +sel_register_name (const char *name) +{ + SEL ret; + + objc_mutex_lock (__objc_runtime_mutex); + /* Assume that name is not constant static memory and needs to be + copied before put into a runtime structure. is_const == NO */ + ret = __sel_register_typed_name (name, 0, 0, NO); + objc_mutex_unlock (__objc_runtime_mutex); + + return ret; +} + +SEL +sel_register_typed_name (const char *name, const char *type) +{ + SEL ret; + + objc_mutex_lock (__objc_runtime_mutex); + /* Assume that name and type are not constant static memory and need to + be copied before put into a runtime structure. is_const == NO */ + ret = __sel_register_typed_name (name, type, 0, NO); + objc_mutex_unlock (__objc_runtime_mutex); + + return ret; +} diff --git a/contrib/libobjc/sendmsg.c b/contrib/libobjc/sendmsg.c new file mode 100644 index 0000000..9453ef3 --- /dev/null +++ b/contrib/libobjc/sendmsg.c @@ -0,0 +1,701 @@ +/* GNU Objective C Runtime message lookup + Copyright (C) 1993, 1995, 1996, 1997, 1998, + 2001, 2002, 2004 Free Software Foundation, Inc. + Contributed by Kresten Krab Thorup + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +/* FIXME: This file has no business including tm.h. */ +/* FIXME: This should be using libffi instead of __builtin_apply + and friends. */ + +#include "tconfig.h" +#include "coretypes.h" +#include "tm.h" +#include "objc/runtime.h" +#include "objc/sarray.h" +#include "objc/encoding.h" +#include "runtime-info.h" + +/* This is how we hack STRUCT_VALUE to be 1 or 0. */ +#define gen_rtx(args...) 1 +#define gen_rtx_MEM(args...) 1 +#define gen_rtx_REG(args...) 1 +#define rtx int + +#if ! defined (STRUCT_VALUE) || STRUCT_VALUE == 0 +#define INVISIBLE_STRUCT_RETURN 1 +#else +#define INVISIBLE_STRUCT_RETURN 0 +#endif + +/* The uninstalled dispatch table */ +struct sarray *__objc_uninstalled_dtable = 0; /* !T:MUTEX */ + +/* Hook for method forwarding. If it is set, is invoked to return a + function that performs the real forwarding. Otherwise the libgcc + based functions (__builtin_apply and friends) are used. */ +IMP (*__objc_msg_forward) (SEL) = NULL; + +/* Send +initialize to class */ +static void __objc_send_initialize (Class); + +static void __objc_install_dispatch_table_for_class (Class); + +/* Forward declare some functions */ +static void __objc_init_install_dtable (id, SEL); + +/* Various forwarding functions that are used based upon the + return type for the selector. + __objc_block_forward for structures. + __objc_double_forward for floats/doubles. + __objc_word_forward for pointers or types that fit in registers. + */ +static double __objc_double_forward (id, SEL, ...); +static id __objc_word_forward (id, SEL, ...); +typedef struct { id many[8]; } __big; +#if INVISIBLE_STRUCT_RETURN +static __big +#else +static id +#endif +__objc_block_forward (id, SEL, ...); +static Method_t search_for_method_in_hierarchy (Class class, SEL sel); +Method_t search_for_method_in_list (MethodList_t list, SEL op); +id nil_method (id, SEL); + +/* Given a selector, return the proper forwarding implementation. */ +inline +IMP +__objc_get_forward_imp (SEL sel) +{ + /* If a custom forwarding hook was registered, try getting a forwarding + * function from it. */ + if (__objc_msg_forward) + { + IMP result; + if ((result = __objc_msg_forward (sel)) != NULL) + return result; + } + + /* In all other cases, use the default forwarding functions built using + * __builtin_apply and friends. */ + { + const char *t = sel->sel_types; + + if (t && (*t == '[' || *t == '(' || *t == '{') +#ifdef OBJC_MAX_STRUCT_BY_VALUE + && objc_sizeof_type (t) > OBJC_MAX_STRUCT_BY_VALUE +#endif + ) + return (IMP)__objc_block_forward; + else if (t && (*t == 'f' || *t == 'd')) + return (IMP)__objc_double_forward; + else + return (IMP)__objc_word_forward; + } +} + +/* Given a class and selector, return the selector's implementation. */ +inline +IMP +get_imp (Class class, SEL sel) +{ + /* In a vanilla implementation we would first check if the dispatch + table is installed. Here instead, to get more speed in the + standard case (that the dispatch table is installed) we first try + to get the imp using brute force. Only if that fails, we do what + we should have been doing from the very beginning, that is, check + if the dispatch table needs to be installed, install it if it's + not installed, and retrieve the imp from the table if it's + installed. */ + void *res = sarray_get_safe (class->dtable, (size_t) sel->sel_id); + if (res == 0) + { + /* Not a valid method */ + if (class->dtable == __objc_uninstalled_dtable) + { + /* The dispatch table needs to be installed. */ + objc_mutex_lock (__objc_runtime_mutex); + + /* Double-checked locking pattern: Check + __objc_uninstalled_dtable again in case another thread + installed the dtable while we were waiting for the lock + to be released. */ + if (class->dtable == __objc_uninstalled_dtable) + { + __objc_install_dispatch_table_for_class (class); + } + + objc_mutex_unlock (__objc_runtime_mutex); + /* Call ourselves with the installed dispatch table + and get the real method */ + res = get_imp (class, sel); + } + else + { + /* The dispatch table has been installed. */ + + /* Get the method from the dispatch table (we try to get it + again in case another thread has installed the dtable just + after we invoked sarray_get_safe, but before we checked + class->dtable == __objc_uninstalled_dtable). + */ + res = sarray_get_safe (class->dtable, (size_t) sel->sel_id); + if (res == 0) + { + /* The dispatch table has been installed, and the method + is not in the dispatch table. So the method just + doesn't exist for the class. Return the forwarding + implementation. */ + res = __objc_get_forward_imp (sel); + } + } + } + return res; +} + +/* Query if an object can respond to a selector, returns YES if the +object implements the selector otherwise NO. Does not check if the +method can be forwarded. */ +inline +BOOL +__objc_responds_to (id object, SEL sel) +{ + void *res; + + /* Install dispatch table if need be */ + if (object->class_pointer->dtable == __objc_uninstalled_dtable) + { + objc_mutex_lock (__objc_runtime_mutex); + if (object->class_pointer->dtable == __objc_uninstalled_dtable) + { + __objc_install_dispatch_table_for_class (object->class_pointer); + } + objc_mutex_unlock (__objc_runtime_mutex); + } + + /* Get the method from the dispatch table */ + res = sarray_get_safe (object->class_pointer->dtable, (size_t) sel->sel_id); + return (res != 0); +} + +/* This is the lookup function. All entries in the table are either a + valid method *or* zero. If zero then either the dispatch table + needs to be installed or it doesn't exist and forwarding is attempted. */ +inline +IMP +objc_msg_lookup (id receiver, SEL op) +{ + IMP result; + if (receiver) + { + result = sarray_get_safe (receiver->class_pointer->dtable, + (sidx)op->sel_id); + if (result == 0) + { + /* Not a valid method */ + if (receiver->class_pointer->dtable == __objc_uninstalled_dtable) + { + /* The dispatch table needs to be installed. + This happens on the very first method call to the class. */ + __objc_init_install_dtable (receiver, op); + + /* Get real method for this in newly installed dtable */ + result = get_imp (receiver->class_pointer, op); + } + else + { + /* The dispatch table has been installed. Check again + if the method exists (just in case the dispatch table + has been installed by another thread after we did the + previous check that the method exists). + */ + result = sarray_get_safe (receiver->class_pointer->dtable, + (sidx)op->sel_id); + if (result == 0) + { + /* If the method still just doesn't exist for the + class, attempt to forward the method. */ + result = __objc_get_forward_imp (op); + } + } + } + return result; + } + else + return (IMP)nil_method; +} + +IMP +objc_msg_lookup_super (Super_t super, SEL sel) +{ + if (super->self) + return get_imp (super->class, sel); + else + return (IMP)nil_method; +} + +int method_get_sizeof_arguments (Method *); + +retval_t +objc_msg_sendv (id object, SEL op, arglist_t arg_frame) +{ + Method *m = class_get_instance_method (object->class_pointer, op); + const char *type; + *((id *) method_get_first_argument (m, arg_frame, &type)) = object; + *((SEL *) method_get_next_argument (arg_frame, &type)) = op; + return __builtin_apply ((apply_t) m->method_imp, + arg_frame, + method_get_sizeof_arguments (m)); +} + +void +__objc_init_dispatch_tables () +{ + __objc_uninstalled_dtable = sarray_new (200, 0); +} + +/* This function is called by objc_msg_lookup when the + dispatch table needs to be installed; thus it is called once + for each class, namely when the very first message is sent to it. */ +static void +__objc_init_install_dtable (id receiver, SEL op __attribute__ ((__unused__))) +{ + objc_mutex_lock (__objc_runtime_mutex); + + /* This may happen, if the programmer has taken the address of a + method before the dtable was initialized... too bad for him! */ + if (receiver->class_pointer->dtable != __objc_uninstalled_dtable) + { + objc_mutex_unlock (__objc_runtime_mutex); + return; + } + + if (CLS_ISCLASS (receiver->class_pointer)) + { + /* receiver is an ordinary object */ + assert (CLS_ISCLASS (receiver->class_pointer)); + + /* install instance methods table */ + __objc_install_dispatch_table_for_class (receiver->class_pointer); + + /* call +initialize -- this will in turn install the factory + dispatch table if not already done :-) */ + __objc_send_initialize (receiver->class_pointer); + } + else + { + /* receiver is a class object */ + assert (CLS_ISCLASS ((Class)receiver)); + assert (CLS_ISMETA (receiver->class_pointer)); + + /* Install real dtable for factory methods */ + __objc_install_dispatch_table_for_class (receiver->class_pointer); + + __objc_send_initialize ((Class)receiver); + } + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* Install dummy table for class which causes the first message to + that class (or instances hereof) to be initialized properly */ +void +__objc_install_premature_dtable (Class class) +{ + assert (__objc_uninstalled_dtable); + class->dtable = __objc_uninstalled_dtable; +} + +/* Send +initialize to class if not already done */ +static void +__objc_send_initialize (Class class) +{ + /* This *must* be a class object */ + assert (CLS_ISCLASS (class)); + assert (! CLS_ISMETA (class)); + + if (! CLS_ISINITIALIZED (class)) + { + CLS_SETINITIALIZED (class); + CLS_SETINITIALIZED (class->class_pointer); + + /* Create the garbage collector type memory description */ + __objc_generate_gc_type_description (class); + + if (class->super_class) + __objc_send_initialize (class->super_class); + + { + SEL op = sel_register_name ("initialize"); + IMP imp = 0; + MethodList_t method_list = class->class_pointer->methods; + + while (method_list) { + int i; + Method_t method; + + for (i = 0; i < method_list->method_count; i++) { + method = &(method_list->method_list[i]); + if (method->method_name + && method->method_name->sel_id == op->sel_id) { + imp = method->method_imp; + break; + } + } + + if (imp) + break; + + method_list = method_list->method_next; + + } + if (imp) + (*imp) ((id) class, op); + + } + } +} + +/* Walk on the methods list of class and install the methods in the reverse + order of the lists. Since methods added by categories are before the methods + of class in the methods list, this allows categories to substitute methods + declared in class. However if more than one category replaces the same + method nothing is guaranteed about what method will be used. + Assumes that __objc_runtime_mutex is locked down. */ +static void +__objc_install_methods_in_dtable (Class class, MethodList_t method_list) +{ + int i; + + if (! method_list) + return; + + if (method_list->method_next) + __objc_install_methods_in_dtable (class, method_list->method_next); + + for (i = 0; i < method_list->method_count; i++) + { + Method_t method = &(method_list->method_list[i]); + sarray_at_put_safe (class->dtable, + (sidx) method->method_name->sel_id, + method->method_imp); + } +} + +/* Assumes that __objc_runtime_mutex is locked down. */ +static void +__objc_install_dispatch_table_for_class (Class class) +{ + Class super; + + /* If the class has not yet had its class links resolved, we must + re-compute all class links */ + if (! CLS_ISRESOLV (class)) + __objc_resolve_class_links (); + + super = class->super_class; + + if (super != 0 && (super->dtable == __objc_uninstalled_dtable)) + __objc_install_dispatch_table_for_class (super); + + /* Allocate dtable if necessary */ + if (super == 0) + { + objc_mutex_lock (__objc_runtime_mutex); + class->dtable = sarray_new (__objc_selector_max_index, 0); + objc_mutex_unlock (__objc_runtime_mutex); + } + else + class->dtable = sarray_lazy_copy (super->dtable); + + __objc_install_methods_in_dtable (class, class->methods); +} + +void +__objc_update_dispatch_table_for_class (Class class) +{ + Class next; + struct sarray *arr; + + /* not yet installed -- skip it */ + if (class->dtable == __objc_uninstalled_dtable) + return; + + objc_mutex_lock (__objc_runtime_mutex); + + arr = class->dtable; + __objc_install_premature_dtable (class); /* someone might require it... */ + sarray_free (arr); /* release memory */ + + /* could have been lazy... */ + __objc_install_dispatch_table_for_class (class); + + if (class->subclass_list) /* Traverse subclasses */ + for (next = class->subclass_list; next; next = next->sibling_class) + __objc_update_dispatch_table_for_class (next); + + objc_mutex_unlock (__objc_runtime_mutex); +} + + +/* This function adds a method list to a class. This function is + typically called by another function specific to the run-time. As + such this function does not worry about thread safe issues. + + This one is only called for categories. Class objects have their + methods installed right away, and their selectors are made into + SEL's by the function __objc_register_selectors_from_class. */ +void +class_add_method_list (Class class, MethodList_t list) +{ + /* Passing of a linked list is not allowed. Do multiple calls. */ + assert (! list->method_next); + + __objc_register_selectors_from_list(list); + + /* Add the methods to the class's method list. */ + list->method_next = class->methods; + class->methods = list; + + /* Update the dispatch table of class */ + __objc_update_dispatch_table_for_class (class); +} + +Method_t +class_get_instance_method (Class class, SEL op) +{ + return search_for_method_in_hierarchy (class, op); +} + +Method_t +class_get_class_method (MetaClass class, SEL op) +{ + return search_for_method_in_hierarchy (class, op); +} + + +/* Search for a method starting from the current class up its hierarchy. + Return a pointer to the method's method structure if found. NULL + otherwise. */ + +static Method_t +search_for_method_in_hierarchy (Class cls, SEL sel) +{ + Method_t method = NULL; + Class class; + + if (! sel_is_mapped (sel)) + return NULL; + + /* Scan the method list of the class. If the method isn't found in the + list then step to its super class. */ + for (class = cls; ((! method) && class); class = class->super_class) + method = search_for_method_in_list (class->methods, sel); + + return method; +} + + + +/* Given a linked list of method and a method's name. Search for the named + method's method structure. Return a pointer to the method's method + structure if found. NULL otherwise. */ +Method_t +search_for_method_in_list (MethodList_t list, SEL op) +{ + MethodList_t method_list = list; + + if (! sel_is_mapped (op)) + return NULL; + + /* If not found then we'll search the list. */ + while (method_list) + { + int i; + + /* Search the method list. */ + for (i = 0; i < method_list->method_count; ++i) + { + Method_t method = &method_list->method_list[i]; + + if (method->method_name) + if (method->method_name->sel_id == op->sel_id) + return method; + } + + /* The method wasn't found. Follow the link to the next list of + methods. */ + method_list = method_list->method_next; + } + + return NULL; +} + +static retval_t __objc_forward (id object, SEL sel, arglist_t args); + +/* Forwarding pointers/integers through the normal registers */ +static id +__objc_word_forward (id rcv, SEL op, ...) +{ + void *args, *res; + + args = __builtin_apply_args (); + res = __objc_forward (rcv, op, args); + if (res) + __builtin_return (res); + else + return res; +} + +/* Specific routine for forwarding floats/double because of + architectural differences on some processors. i386s for + example which uses a floating point stack versus general + registers for floating point numbers. This forward routine + makes sure that GCC restores the proper return values */ +static double +__objc_double_forward (id rcv, SEL op, ...) +{ + void *args, *res; + + args = __builtin_apply_args (); + res = __objc_forward (rcv, op, args); + __builtin_return (res); +} + +#if INVISIBLE_STRUCT_RETURN +static __big +#else +static id +#endif +__objc_block_forward (id rcv, SEL op, ...) +{ + void *args, *res; + + args = __builtin_apply_args (); + res = __objc_forward (rcv, op, args); + if (res) + __builtin_return (res); + else +#if INVISIBLE_STRUCT_RETURN + return (__big) {{0, 0, 0, 0, 0, 0, 0, 0}}; +#else + return nil; +#endif +} + + +/* This function is installed in the dispatch table for all methods which are + not implemented. Thus, it is called when a selector is not recognized. */ +static retval_t +__objc_forward (id object, SEL sel, arglist_t args) +{ + IMP imp; + static SEL frwd_sel = 0; /* !T:SAFE2 */ + SEL err_sel; + + /* first try if the object understands forward:: */ + if (! frwd_sel) + frwd_sel = sel_get_any_uid ("forward::"); + + if (__objc_responds_to (object, frwd_sel)) + { + imp = get_imp (object->class_pointer, frwd_sel); + return (*imp) (object, frwd_sel, sel, args); + } + + /* If the object recognizes the doesNotRecognize: method then we're going + to send it. */ + err_sel = sel_get_any_uid ("doesNotRecognize:"); + if (__objc_responds_to (object, err_sel)) + { + imp = get_imp (object->class_pointer, err_sel); + return (*imp) (object, err_sel, sel); + } + + /* The object doesn't recognize the method. Check for responding to + error:. If it does then sent it. */ + { + char msg[256 + strlen ((const char *) sel_get_name (sel)) + + strlen ((const char *) object->class_pointer->name)]; + + sprintf (msg, "(%s) %s does not recognize %s", + (CLS_ISMETA (object->class_pointer) + ? "class" + : "instance" ), + object->class_pointer->name, sel_get_name (sel)); + + err_sel = sel_get_any_uid ("error:"); + if (__objc_responds_to (object, err_sel)) + { + imp = get_imp (object->class_pointer, err_sel); + return (*imp) (object, sel_get_any_uid ("error:"), msg); + } + + /* The object doesn't respond to doesNotRecognize: or error:; Therefore, + a default action is taken. */ + objc_error (object, OBJC_ERR_UNIMPLEMENTED, "%s\n", msg); + + return 0; + } +} + +void +__objc_print_dtable_stats () +{ + int total = 0; + + objc_mutex_lock (__objc_runtime_mutex); + +#ifdef OBJC_SPARSE2 + printf ("memory usage: (%s)\n", "2-level sparse arrays"); +#else + printf ("memory usage: (%s)\n", "3-level sparse arrays"); +#endif + + printf ("arrays: %d = %ld bytes\n", narrays, + (long) narrays * sizeof (struct sarray)); + total += narrays * sizeof (struct sarray); + printf ("buckets: %d = %ld bytes\n", nbuckets, + (long) nbuckets * sizeof (struct sbucket)); + total += nbuckets * sizeof (struct sbucket); + + printf ("idxtables: %d = %ld bytes\n", + idxsize, (long) idxsize * sizeof (void *)); + total += idxsize * sizeof (void *); + printf ("-----------------------------------\n"); + printf ("total: %d bytes\n", total); + printf ("===================================\n"); + + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* Returns the uninstalled dispatch table indicator. + If a class' dispatch table points to __objc_uninstalled_dtable + then that means it needs its dispatch table to be installed. */ +inline +struct sarray * +objc_get_uninstalled_dtable () +{ + return __objc_uninstalled_dtable; +} diff --git a/contrib/libobjc/thr-dce.c b/contrib/libobjc/thr-dce.c new file mode 100644 index 0000000..b20eacf --- /dev/null +++ b/contrib/libobjc/thr-dce.c @@ -0,0 +1,281 @@ +/* GNU Objective C Runtime Thread Interface + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <pthread.h> +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Key structure for maintaining thread specific storage */ +static pthread_key_t _objc_thread_storage; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + return pthread_keycreate(&_objc_thread_storage, NULL); +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* Destroy the thread storage key */ + /* Not implemented yet */ + /* return pthread_key_delete(&_objc_thread_storage); */ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + pthread_t new_thread_handle; + + if (pthread_create(&new_thread_handle, pthread_attr_default, + (void *)func, arg) == 0) + { + /* ??? May not work! (64bit) */ + thread_id = *(objc_thread_t *)&new_thread_handle; + pthread_detach(&new_thread_handle); /* Fully detach thread. */ + } + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + int sys_priority = 0; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = (PRI_FG_MIN_NP + PRI_FG_MAX_NP) / 2; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; + break; + } + + /* Change the priority. */ + if (pthread_setprio(pthread_self(), sys_priority) >= 0) + return 0; + else + /* Failed */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + int sys_priority; + + if ((sys_priority = pthread_getprio(pthread_self())) >= 0) { + if (sys_priority >= PRI_FG_MIN_NP && sys_priority <= PRI_FG_MAX_NP) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + if (sys_priority >= PRI_BG_MIN_NP && sys_priority <= PRI_BG_MAX_NP) + return OBJC_THREAD_BACKGROUND_PRIORITY; + return OBJC_THREAD_LOW_PRIORITY; + } + + /* Failed */ + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + pthread_yield(); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + pthread_exit(&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + pthread_t self = pthread_self(); + + return (objc_thread_t) pthread_getunique_np (&self); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + return pthread_setspecific(_objc_thread_storage, value); +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + void *value = NULL; + + if ( !(pthread_getspecific(_objc_thread_storage, &value)) ) + return value; + + return NULL; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (pthread_mutex_init((pthread_mutex_t *)(&(mutex->backend)), + pthread_mutexattr_default)) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + if (pthread_mutex_destroy((pthread_mutex_t *)(&(mutex->backend)))) + return -1; + else + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + return pthread_mutex_lock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (pthread_mutex_trylock((pthread_mutex_t *)(&(mutex->backend))) != 1) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return pthread_mutex_unlock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + if (pthread_cond_init((pthread_cond_t *)(&(condition->backend)), NULL)) + return -1; + else + return 0; + */ +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_destroy((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_wait((pthread_cond_t *)(&(condition->backend)), + (pthread_mutex_t *)(&(mutex->backend))); + */ +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_broadcast((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_signal((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* End of File */ diff --git a/contrib/libobjc/thr-decosf1.c b/contrib/libobjc/thr-decosf1.c new file mode 100644 index 0000000..b20eacf --- /dev/null +++ b/contrib/libobjc/thr-decosf1.c @@ -0,0 +1,281 @@ +/* GNU Objective C Runtime Thread Interface + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <pthread.h> +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Key structure for maintaining thread specific storage */ +static pthread_key_t _objc_thread_storage; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + return pthread_keycreate(&_objc_thread_storage, NULL); +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* Destroy the thread storage key */ + /* Not implemented yet */ + /* return pthread_key_delete(&_objc_thread_storage); */ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + pthread_t new_thread_handle; + + if (pthread_create(&new_thread_handle, pthread_attr_default, + (void *)func, arg) == 0) + { + /* ??? May not work! (64bit) */ + thread_id = *(objc_thread_t *)&new_thread_handle; + pthread_detach(&new_thread_handle); /* Fully detach thread. */ + } + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + int sys_priority = 0; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = (PRI_FG_MIN_NP + PRI_FG_MAX_NP) / 2; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; + break; + } + + /* Change the priority. */ + if (pthread_setprio(pthread_self(), sys_priority) >= 0) + return 0; + else + /* Failed */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + int sys_priority; + + if ((sys_priority = pthread_getprio(pthread_self())) >= 0) { + if (sys_priority >= PRI_FG_MIN_NP && sys_priority <= PRI_FG_MAX_NP) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + if (sys_priority >= PRI_BG_MIN_NP && sys_priority <= PRI_BG_MAX_NP) + return OBJC_THREAD_BACKGROUND_PRIORITY; + return OBJC_THREAD_LOW_PRIORITY; + } + + /* Failed */ + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + pthread_yield(); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + pthread_exit(&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + pthread_t self = pthread_self(); + + return (objc_thread_t) pthread_getunique_np (&self); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + return pthread_setspecific(_objc_thread_storage, value); +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + void *value = NULL; + + if ( !(pthread_getspecific(_objc_thread_storage, &value)) ) + return value; + + return NULL; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (pthread_mutex_init((pthread_mutex_t *)(&(mutex->backend)), + pthread_mutexattr_default)) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + if (pthread_mutex_destroy((pthread_mutex_t *)(&(mutex->backend)))) + return -1; + else + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + return pthread_mutex_lock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (pthread_mutex_trylock((pthread_mutex_t *)(&(mutex->backend))) != 1) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return pthread_mutex_unlock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + if (pthread_cond_init((pthread_cond_t *)(&(condition->backend)), NULL)) + return -1; + else + return 0; + */ +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_destroy((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_wait((pthread_cond_t *)(&(condition->backend)), + (pthread_mutex_t *)(&(mutex->backend))); + */ +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_broadcast((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; + + /* + return pthread_cond_signal((pthread_cond_t *)(&(condition->backend))); + */ +} + +/* End of File */ diff --git a/contrib/libobjc/thr-irix.c b/contrib/libobjc/thr-irix.c new file mode 100644 index 0000000..ca68e08 --- /dev/null +++ b/contrib/libobjc/thr-irix.c @@ -0,0 +1,235 @@ +/* GNU Objective C Runtime Thread Interface - SGI IRIX Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <stdlib.h> +#include <sys/types.h> +#include <sys/sysmp.h> +#include <sys/prctl.h> +#include <ulocks.h> +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Key structure for maintaining thread specific storage */ +static void * __objc_shared_arena_handle = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Name of IRIX arena. */ + char arena_name[64]; + + DEBUG_PRINTF("__objc_init_thread_system\n"); + + /* Construct a temporary name for arena. */ + sprintf(arena_name, "/usr/tmp/objc_%05u", (unsigned)getpid()); + + /* Up to 256 threads. Arena only for threads. */ + usconfig(CONF_INITUSERS, 256); + usconfig(CONF_ARENATYPE, US_SHAREDONLY); + + /* Initialize the arena */ + if (!(__objc_shared_arena_handle = usinit(arena_name))) + /* Failed */ + return -1; + + return 0; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + int sys_id; + + if ((sys_id = sproc((void *)func, PR_SALL, arg)) >= 0) + thread_id = (objc_thread_t)sys_id; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + /* Not implemented yet */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + /* Not implemented yet */ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + sginap(0); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* IRIX only has exit. */ + exit(__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + /* Threads are processes. */ + return (objc_thread_t)get_pid(); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + *((void **)&PRDA->usr_prda) = value; + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return *((void **)&PRDA->usr_prda); +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (!( (ulock_t)(mutex->backend) = usnewlock(__objc_shared_arena_handle) )) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + usfreelock((ulock_t)(mutex->backend), __objc_shared_arena_handle); + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + if (ussetlock((ulock_t)(mutex->backend)) == 0) + return -1; + else + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (ustestlock((ulock_t)(mutex->backend)) == 0) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + usunsetlock((ulock_t)(mutex->backend)); + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-mach.c b/contrib/libobjc/thr-mach.c new file mode 100644 index 0000000..76167b4 --- /dev/null +++ b/contrib/libobjc/thr-mach.c @@ -0,0 +1,313 @@ +/* GNU Objective C Runtime Thread Implementation + Copyright (C) 1996, 1997, 2002 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + Modified for Mach threads by Bill Bumgarner <bbum@friday.com> + Condition functions added by Mircea Oancea <mircea@first.elcom.pub.ro> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <mach/mach.h> +#include <mach/cthreads.h> +#include "objc/thr.h" +#include "objc/runtime.h" + +/* + Obtain the maximum thread priority that can set for t. Under the + mach threading model, it is possible for the developer to adjust the + maximum priority downward only-- cannot be raised without superuser + privileges. Once lowered, it cannot be raised. + */ +static int +__mach_get_max_thread_priority (cthread_t t, int *base) +{ + thread_t threadP; + kern_return_t error; + struct thread_sched_info info; + unsigned int info_count=THREAD_SCHED_INFO_COUNT; + + if (t == NULL) + return -1; + + threadP = cthread_thread (t); /* get thread underlying */ + + error = thread_info (threadP, THREAD_SCHED_INFO, + (thread_info_t) &info, &info_count); + + if (error != KERN_SUCCESS) + return -1; + + if (base != NULL) + *base = info.base_priority; + + return info.max_priority; +} + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system (void) +{ + return 0; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system (void) +{ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach (void (*func) (void *arg), void *arg) +{ + objc_thread_t thread_id; + cthread_t new_thread_handle; + + /* create thread */ + new_thread_handle = cthread_fork ((cthread_fn_t) func, arg); + + if (new_thread_handle) + { + /* this is not terribly portable */ + thread_id = *(objc_thread_t *) &new_thread_handle; + cthread_detach (new_thread_handle); + } + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority (int priority) +{ + objc_thread_t *t = objc_thread_id (); + cthread_t cT = (cthread_t) t; + int maxPriority = __mach_get_max_thread_priority (cT, NULL); + int sys_priority = 0; + + if (maxPriority == -1) + return -1; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = maxPriority; + break; + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = (maxPriority * 2) / 3; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = maxPriority / 3; + break; + default: + return -1; + } + + if (sys_priority == 0) + return -1; + + /* Change the priority */ + if (cthread_priority (cT, sys_priority, 0) == KERN_SUCCESS) + return 0; + else + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority (void) +{ + objc_thread_t *t = objc_thread_id (); + cthread_t cT = (cthread_t) t; /* see objc_thread_id () */ + int basePriority; + int maxPriority; + int sys_priority = 0; + + int interactiveT, backgroundT, lowT; /* thresholds */ + + maxPriority = __mach_get_max_thread_priority (cT, &basePriority); + + if (maxPriority == -1) + return -1; + + if (basePriority > ( (maxPriority * 2) / 3)) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + + if (basePriority > ( maxPriority / 3)) + return OBJC_THREAD_BACKGROUND_PRIORITY; + + return OBJC_THREAD_LOW_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield (void) +{ + cthread_yield (); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit (void) +{ + /* exit the thread */ + cthread_exit (&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id (void) +{ + cthread_t self = cthread_self (); + + return *(objc_thread_t *) &self; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data (void *value) +{ + cthread_set_data (cthread_self (), (any_t) value); + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data (void) +{ + return (void *) cthread_data (cthread_self ()); +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate (objc_mutex_t mutex) +{ + int err = 0; + mutex->backend = objc_malloc (sizeof (struct mutex)); + + err = mutex_init ((mutex_t) (mutex->backend)); + + if (err != 0) + { + objc_free (mutex->backend); + return -1; + } + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate (objc_mutex_t mutex) +{ + mutex_clear ((mutex_t) (mutex->backend)); + + objc_free (mutex->backend); + mutex->backend = NULL; + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock (objc_mutex_t mutex) +{ + mutex_lock ((mutex_t) (mutex->backend)); + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock (objc_mutex_t mutex) +{ + if (mutex_try_lock ((mutex_t) (mutex->backend)) == 0) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock (objc_mutex_t mutex) +{ + mutex_unlock ((mutex_t) (mutex->backend)); + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate (objc_condition_t condition) +{ + condition->backend = objc_malloc (sizeof (struct condition)); + condition_init ((condition_t) (condition->backend)); + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate (objc_condition_t condition) +{ + condition_clear ((condition_t) (condition->backend)); + objc_free (condition->backend); + condition->backend = NULL; + return 0; +} + +/* Wait on the condition */ +int +__objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) +{ + condition_wait ((condition_t) (condition->backend), + (mutex_t) (mutex->backend)); + return 0; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast (objc_condition_t condition) +{ + condition_broadcast ((condition_t) (condition->backend)); + return 0; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal (objc_condition_t condition) +{ + condition_signal ((condition_t) (condition->backend)); + return 0; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-objc.c b/contrib/libobjc/thr-objc.c new file mode 100644 index 0000000..7d6375a --- /dev/null +++ b/contrib/libobjc/thr-objc.c @@ -0,0 +1,192 @@ +/* GNU Objective C Runtime Thread Interface. + Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005, 2006 + Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#define _LIBOBJC +/* The line below is needed for declarations of functions such as + pthread_mutexattr_settype, without which gthr-posix.h may fail to + compile within libobjc. Unfortunately, this breaks compilation on + Tru64 UNIX V4.0F, so disable it there. */ +#ifndef __osf__ +#define _XOPEN_SOURCE 500 +#endif +#include "config.h" +#include "tconfig.h" +#include "coretypes.h" +#include "tm.h" +#include "defaults.h" +#include "objc/thr.h" +#include "objc/runtime.h" +#include <gthr.h> + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + return __gthread_objc_init_thread_system (); +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + return __gthread_objc_close_thread_system (); +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *), void *arg) +{ + return __gthread_objc_thread_detach (func, arg); +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + return __gthread_objc_thread_set_priority (priority); +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + return __gthread_objc_thread_get_priority (); +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + __gthread_objc_thread_yield (); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + return __gthread_objc_thread_exit (); +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + return __gthread_objc_thread_id (); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + return __gthread_objc_thread_set_data (value); +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return __gthread_objc_thread_get_data (); +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + return __gthread_objc_mutex_allocate (mutex); +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + return __gthread_objc_mutex_deallocate (mutex); +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + return __gthread_objc_mutex_lock (mutex); +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + return __gthread_objc_mutex_trylock (mutex); +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return __gthread_objc_mutex_unlock (mutex); +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + return __gthread_objc_condition_allocate (condition); +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return __gthread_objc_condition_deallocate (condition); +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return __gthread_objc_condition_wait (condition, mutex); +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return __gthread_objc_condition_broadcast (condition); +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return __gthread_objc_condition_signal (condition); +} + +/* End of File */ diff --git a/contrib/libobjc/thr-os2.c b/contrib/libobjc/thr-os2.c new file mode 100644 index 0000000..787c949 --- /dev/null +++ b/contrib/libobjc/thr-os2.c @@ -0,0 +1,267 @@ +/* GNU Objective C Runtime Thread Interface - OS/2 emx Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Thomas Baier (baier@ci.tuwien.ac.at) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +#define INCL_DOSSEMAPHORES +#define INCL_DOSPROCESS + +/* + * conflicts with objc.h: SEL, BOOL, id + * solution: prefixing those with _OS2_ before including <os2.h> + */ +#define SEL _OS2_SEL +#define BOOL _OS2_BOOL +#define id _OS2_id +#include <os2.h> +#undef id +#undef SEL +#undef BOOL + +#include <stdlib.h> + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + return 0; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + int thread_id = 0; + + if ((thread_id = _beginthread (func,NULL,32768,arg)) < 0) + thread_id = 0; + + return (objc_thread_t)thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + ULONG sys_class = 0; + ULONG sys_priority = 0; + + /* OBJC_THREAD_INTERACTIVE_PRIORITY -> PRTYC_FOREGROUNDSERVER + * OBJC_THREAD_BACKGROUND_PRIORITY -> PRTYC_REGULAR + * OBJC_THREAD_LOW_PRIORITY -> PRTYC_IDLETIME */ + + switch (priority) { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_class = PRTYC_REGULAR; + sys_priority = 10; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_class = PRTYC_IDLETIME; + sys_priority = 25; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_class = PRTYC_IDLETIME; + sys_priority = 0; + break; + } + + /* Change priority */ + if (!DosSetPriority (PRTYS_THREAD,sys_class,sys_priority,*_threadid)) + return 0; + else + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + PTIB ptib; + PPIB ppib; + + /* get information about current thread */ + DosGetInfoBlocks (&ptib,&ppib); + + switch (ptib->tib_ptib2->tib2_ulpri) + { + case PRTYC_IDLETIME: + case PRTYC_REGULAR: + case PRTYC_TIMECRITICAL: + case PRTYC_FOREGROUNDSERVER: + default: + return OBJC_THREAD_INTERACTIVE_PRIORITY; + } + + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + DosSleep (0); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* terminate the thread, NEVER use DosExit () */ + _endthread (); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + return (objc_thread_t) *_threadid; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + *_threadstore () = value; + + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return *_threadstore (); +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (DosCreateMutexSem (NULL, (HMTX)(&(mutex->backend)),0L,0) > 0) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + DosCloseMutexSem ((HMTX)(mutex->backend)); + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + if (DosRequestMutexSem ((HMTX)(mutex->backend),-1L) != 0) + return -1; + else + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (DosRequestMutexSem ((HMTX)(mutex->backend),0L) != 0) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + if (DosReleaseMutexSem((HMTX)(mutex->backend)) != 0) + return -1; + else + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-posix.c b/contrib/libobjc/thr-posix.c new file mode 100644 index 0000000..f701083 --- /dev/null +++ b/contrib/libobjc/thr-posix.c @@ -0,0 +1,318 @@ +/* GNU Objective C Runtime Thread Interface for POSIX compliant threads + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + Modified for Linux/Pthreads by Kai-Uwe Sattler (kus@iti.cs.uni-magdeburg.de) + Modified for posix compliance by Chris Ball (cball@fmco.com) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" +#include <pthread.h> + +/* Key structure for maintaining thread specific storage */ +static pthread_key_t _objc_thread_storage; +static pthread_attr_t _objc_thread_attribs; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + if (pthread_key_create(&_objc_thread_storage, NULL) == 0) + { + /* + * The normal default detach state for threads is PTHREAD_CREATE_JOINABLE + * which causes threads to not die when you think they should. + */ + if (pthread_attr_init(&_objc_thread_attribs) == 0) + { + if (pthread_attr_setdetachstate(&_objc_thread_attribs, + PTHREAD_CREATE_DETACHED) == 0) + return 0; + } + } + + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + if (pthread_key_delete(_objc_thread_storage) == 0) + { + if (pthread_attr_destroy(&_objc_thread_attribs) == 0) + return 0; + } + + return -1; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + pthread_t new_thread_handle; + + if (!(pthread_create(&new_thread_handle, &_objc_thread_attribs, + (void *)func, arg))) + thread_id = *(objc_thread_t *)&new_thread_handle; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. + * + * Be aware that the default schedpolicy often disallows thread priorities. + */ +int +__objc_thread_set_priority(int priority) +{ + pthread_t thread_id = pthread_self(); + int policy; + struct sched_param params; + int priority_min, priority_max; + + if (pthread_getschedparam(thread_id, &policy, ¶ms) == 0) + { + if ((priority_max = sched_get_priority_max(policy)) != 0) + return -1; + + if ((priority_min = sched_get_priority_min(policy)) != 0) + return -1; + + if (priority > priority_max) + priority = priority_max; + else if (priority < priority_min) + priority = priority_min; + params.sched_priority = priority; + + /* + * The solaris 7 and several other man pages incorrectly state that + * this should be a pointer to policy but pthread.h is universally + * at odds with this. + */ + if (pthread_setschedparam(thread_id, policy, ¶ms) == 0) + return 0; + } + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + int policy; + struct sched_param params; + + if (pthread_getschedparam(pthread_self(), &policy, ¶ms) == 0) + return params.sched_priority; + else + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + sched_yield(); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + pthread_exit(&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + pthread_t self = pthread_self(); + + return *(objc_thread_t *)&self; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + if (pthread_setspecific(_objc_thread_storage, value) == 0) + return 0; + else + return -1; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return pthread_getspecific(_objc_thread_storage); +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + mutex->backend = objc_malloc(sizeof(pthread_mutex_t)); + + if (pthread_mutex_init((pthread_mutex_t *)mutex->backend, NULL)) + { + objc_free(mutex->backend); + mutex->backend = NULL; + return -1; + } + + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + int count = 1; + + /* + * Posix Threads specifically require that the thread be unlocked for + * pthread_mutex_destroy to work. + */ + + while (count) + { + if ((count = pthread_mutex_unlock((pthread_mutex_t*)mutex->backend)) < 0) + return -1; + } + + if (pthread_mutex_destroy((pthread_mutex_t *)mutex->backend)) + return -1; + + objc_free(mutex->backend); + mutex->backend = NULL; + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + if (pthread_mutex_lock((pthread_mutex_t *)mutex->backend) == 0) + return 0; + else + return -1; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (pthread_mutex_trylock((pthread_mutex_t *)mutex->backend) == 0) + return 0; + else + return -1; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + if (pthread_mutex_unlock((pthread_mutex_t *)mutex->backend) == 0) + return 0; + else + return -1; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + condition->backend = objc_malloc(sizeof(pthread_cond_t)); + + if (pthread_cond_init((pthread_cond_t *)condition->backend, NULL)) + { + objc_free(condition->backend); + condition->backend = NULL; + return -1; + } + + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + if (pthread_cond_destroy((pthread_cond_t *)condition->backend)) + return -1; + + objc_free(condition->backend); + condition->backend = NULL; + return 0; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + if (pthread_cond_wait((pthread_cond_t *)condition->backend, + (pthread_mutex_t *)mutex->backend) == 0) + return 0; + else + return -1; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + if (pthread_cond_broadcast((pthread_cond_t *)condition->backend) == 0) + return 0; + else + return -1; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + if (pthread_cond_signal((pthread_cond_t *)condition->backend) == 0) + return 0; + else + return -1; +} diff --git a/contrib/libobjc/thr-pthreads.c b/contrib/libobjc/thr-pthreads.c new file mode 100644 index 0000000..d73db47 --- /dev/null +++ b/contrib/libobjc/thr-pthreads.c @@ -0,0 +1,218 @@ +/* GNU Objective C Runtime Thread Implementation for PCThreads under GNU/Linux. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Scott Christley <scottc@net-community.com> + Condition functions added by: Mircea Oancea <mircea@first.elcom.pub.ro> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <pcthread.h> +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Key structure for maintaining thread specific storage */ +static pthread_key_t _objc_thread_storage; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + return pthread_key_create(&_objc_thread_storage, NULL); +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* Destroy the thread storage key */ + /* Not implemented yet */ + /* return pthread_key_delete(&_objc_thread_storage); */ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + pthread_t new_thread_handle; + + if ( !(pthread_create(&new_thread_handle, NULL, (void *)func, arg)) ) + thread_id = *(objc_thread_t *)&new_thread_handle; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + /* Not implemented yet */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + /* Not implemented yet */ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + pthread_yield(NULL); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + pthread_exit(&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + pthread_t self = pthread_self(); + + return *(objc_thread_t *)&self; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + return pthread_setspecific(_objc_thread_storage, value); +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + void *value = NULL; + + if ( !(pthread_getspecific(_objc_thread_storage, &value)) ) + return value; + + return NULL; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (pthread_mutex_init((pthread_mutex_t *)(&(mutex->backend)), NULL)) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + if (pthread_mutex_destroy((pthread_mutex_t *)(&(mutex->backend)))) + return -1; + else + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + return pthread_mutex_lock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + return pthread_mutex_trylock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return pthread_mutex_unlock((pthread_mutex_t *)(&(mutex->backend))); +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + if (pthread_cond_init((pthread_cond_t *)(&(condition->backend)), NULL)) + return -1; + else + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return pthread_cond_destroy((pthread_cond_t *)(&(condition->backend))); +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return pthread_cond_wait((pthread_cond_t *)(&(condition->backend)), + (pthread_mutex_t *)(&(mutex->backend))); +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return pthread_cond_broadcast((pthread_cond_t *)(&(condition->backend))); +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return pthread_cond_signal((pthread_cond_t *)(&(condition->backend))); +} + +/* End of File */ diff --git a/contrib/libobjc/thr-rtems.c b/contrib/libobjc/thr-rtems.c new file mode 100644 index 0000000..4e4f1e4 --- /dev/null +++ b/contrib/libobjc/thr-rtems.c @@ -0,0 +1,194 @@ +/* GNU Objective C Runtime Thread Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + Renamed from thr-vxworks.c to thr-rtems.c by + Ralf Corsepius (corsepiu@faw.uni-ulm.de) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Thread local storage for a single thread */ +static void *thread_local_storage = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + /* No thread support available */ + return NULL; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + /* No thread support available */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + return; +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* No thread support available */ + /* Should we really exit the program */ + /* exit(&__objc_thread_exit_status); */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + /* No thread support, use 1. */ + return (objc_thread_t)1; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + thread_local_storage = value; + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return 0; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return 0; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return 0; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return 0; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-single.c b/contrib/libobjc/thr-single.c new file mode 100644 index 0000000..0407dcf --- /dev/null +++ b/contrib/libobjc/thr-single.c @@ -0,0 +1,192 @@ +/* GNU Objective C Runtime Thread Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Thread local storage for a single thread */ +static void *thread_local_storage = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + /* No thread support available */ + return NULL; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + /* No thread support available */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + return; +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* No thread support available */ + /* Should we really exit the program */ + /* exit(&__objc_thread_exit_status); */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + /* No thread support, use 1. */ + return (objc_thread_t)1; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + thread_local_storage = value; + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return 0; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return 0; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return 0; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return 0; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-solaris.c b/contrib/libobjc/thr-solaris.c new file mode 100644 index 0000000..0cc3522 --- /dev/null +++ b/contrib/libobjc/thr-solaris.c @@ -0,0 +1,259 @@ +/* GNU Objective C Runtime Thread Interface + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + Conditions added by Mircea Oancea (mircea@first.elcom.pub.ro) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +#include <thread.h> +#include <synch.h> +#include <errno.h> + +/* Key structure for maintaining thread specific storage */ +static thread_key_t __objc_thread_data_key; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + if (thr_keycreate(&__objc_thread_data_key, NULL) == 0) + return 0; + else + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + objc_thread_t thread_id; + thread_t new_thread_id = 0; + + if (thr_create(NULL, 0, (void *)func, arg, + THR_DETACHED | THR_NEW_LWP, + &new_thread_id) == 0) + thread_id = *(objc_thread_t *)&new_thread_id; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + int sys_priority = 0; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = 300; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = 200; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = 1000; + break; + } + + /* Change priority */ + if (thr_setprio(thr_self(), sys_priority) == 0) + return 0; + else + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + int sys_priority; + + if (thr_getprio(thr_self(), &sys_priority) == 0) + { + if (sys_priority >= 250) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + else if (sys_priority >= 150) + return OBJC_THREAD_BACKGROUND_PRIORITY; + return OBJC_THREAD_LOW_PRIORITY; + } + + /* Couldn't get priority. */ + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + thr_yield(); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + thr_exit(&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + return (objc_thread_t)thr_self(); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + if (thr_setspecific(__objc_thread_data_key, value) == 0) + return 0; + else + return -1; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + void *value = NULL; + + if (thr_getspecific(__objc_thread_data_key, &value) == 0) + return value; + + return NULL; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if (mutex_init( (mutex_t *)(&(mutex->backend)), USYNC_THREAD, 0)) + return -1; + else + return 0; +} + + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + mutex_destroy((mutex_t *)(&(mutex->backend))); + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + if (mutex_lock((mutex_t *)(&(mutex->backend))) != 0) + return -1; + else + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + if (mutex_trylock((mutex_t *)(&(mutex->backend))) != 0) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + if (mutex_unlock((mutex_t *)(&(mutex->backend))) != 0) + return -1; + else + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + return cond_init((cond_t *)(&(condition->backend)), USYNC_THREAD, NULL); +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return cond_destroy((cond_t *)(&(condition->backend))); +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return cond_wait((cond_t *)(&(condition->backend)), + (mutex_t *)(&(mutex->backend))); +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return cond_broadcast((cond_t *)(&(condition->backend))); +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return cond_signal((cond_t *)(&(condition->backend))); +} + +/* End of File */ diff --git a/contrib/libobjc/thr-vxworks.c b/contrib/libobjc/thr-vxworks.c new file mode 100644 index 0000000..0407dcf --- /dev/null +++ b/contrib/libobjc/thr-vxworks.c @@ -0,0 +1,192 @@ +/* GNU Objective C Runtime Thread Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +/* Thread local storage for a single thread */ +static void *thread_local_storage = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + /* No thread support available */ + return -1; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + /* No thread support available */ + return NULL; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + /* No thread support available */ + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + return; +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* No thread support available */ + /* Should we really exit the program */ + /* exit(&__objc_thread_exit_status); */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + /* No thread support, use 1. */ + return (objc_thread_t)1; +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + thread_local_storage = value; + return 0; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + return 0; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + return 0; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + return 0; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + return 0; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + return 0; +} + +/* End of File */ diff --git a/contrib/libobjc/thr-win32.c b/contrib/libobjc/thr-win32.c new file mode 100644 index 0000000..cc4bb74 --- /dev/null +++ b/contrib/libobjc/thr-win32.c @@ -0,0 +1,272 @@ +/* GNU Objective C Runtime Thread Interface - Win32 Implementation + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include "objc/thr.h" +#include "objc/runtime.h" + +#ifndef __OBJC__ +#define __OBJC__ +#endif +#include <windows.h> + +/* Key structure for maintaining thread specific storage */ +static DWORD __objc_data_tls = (DWORD)-1; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +int +__objc_init_thread_system(void) +{ + /* Initialize the thread storage key */ + if ((__objc_data_tls = TlsAlloc()) != (DWORD)-1) + return 0; + else + return -1; +} + +/* Close the threads subsystem. */ +int +__objc_close_thread_system(void) +{ + if (__objc_data_tls != (DWORD)-1) + TlsFree(__objc_data_tls); + return 0; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +objc_thread_t +__objc_thread_detach(void (*func)(void *arg), void *arg) +{ + DWORD thread_id = 0; + HANDLE win32_handle; + + if (!(win32_handle = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, + arg, 0, &thread_id))) + thread_id = 0; + + return (objc_thread_t)thread_id; +} + +/* Set the current thread's priority. */ +int +__objc_thread_set_priority(int priority) +{ + int sys_priority = 0; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = THREAD_PRIORITY_NORMAL; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = THREAD_PRIORITY_BELOW_NORMAL; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = THREAD_PRIORITY_LOWEST; + break; + } + + /* Change priority */ + if (SetThreadPriority(GetCurrentThread(), sys_priority)) + return 0; + else + return -1; +} + +/* Return the current thread's priority. */ +int +__objc_thread_get_priority(void) +{ + int sys_priority; + + sys_priority = GetThreadPriority(GetCurrentThread()); + + switch (sys_priority) + { + case THREAD_PRIORITY_HIGHEST: + case THREAD_PRIORITY_TIME_CRITICAL: + case THREAD_PRIORITY_ABOVE_NORMAL: + case THREAD_PRIORITY_NORMAL: + return OBJC_THREAD_INTERACTIVE_PRIORITY; + + default: + case THREAD_PRIORITY_BELOW_NORMAL: + return OBJC_THREAD_BACKGROUND_PRIORITY; + + case THREAD_PRIORITY_IDLE: + case THREAD_PRIORITY_LOWEST: + return OBJC_THREAD_LOW_PRIORITY; + } + + /* Couldn't get priority. */ + return -1; +} + +/* Yield our process time to another thread. */ +void +__objc_thread_yield(void) +{ + Sleep(0); +} + +/* Terminate the current thread. */ +int +__objc_thread_exit(void) +{ + /* exit the thread */ + ExitThread(__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +objc_thread_t +__objc_thread_id(void) +{ + return (objc_thread_t)GetCurrentThreadId(); +} + +/* Sets the thread's local storage pointer. */ +int +__objc_thread_set_data(void *value) +{ + if (TlsSetValue(__objc_data_tls, value)) + return 0; + else + return -1; +} + +/* Returns the thread's local storage pointer. */ +void * +__objc_thread_get_data(void) +{ + return TlsGetValue(__objc_data_tls); /* Return thread data. */ +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +int +__objc_mutex_allocate(objc_mutex_t mutex) +{ + if ((mutex->backend = (void *)CreateMutex(NULL, 0, NULL)) == NULL) + return -1; + else + return 0; +} + +/* Deallocate a mutex. */ +int +__objc_mutex_deallocate(objc_mutex_t mutex) +{ + CloseHandle((HANDLE)(mutex->backend)); + return 0; +} + +/* Grab a lock on a mutex. */ +int +__objc_mutex_lock(objc_mutex_t mutex) +{ + int status; + + status = WaitForSingleObject((HANDLE)(mutex->backend), INFINITE); + if (status != WAIT_OBJECT_0 && status != WAIT_ABANDONED) + return -1; + else + return 0; +} + +/* Try to grab a lock on a mutex. */ +int +__objc_mutex_trylock(objc_mutex_t mutex) +{ + int status; + + status = WaitForSingleObject((HANDLE)(mutex->backend), 0); + if (status != WAIT_OBJECT_0 && status != WAIT_ABANDONED) + return -1; + else + return 0; +} + +/* Unlock the mutex */ +int +__objc_mutex_unlock(objc_mutex_t mutex) +{ + if (ReleaseMutex((HANDLE)(mutex->backend)) == 0) + return -1; + else + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +int +__objc_condition_allocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Deallocate a condition. */ +int +__objc_condition_deallocate(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wait on the condition */ +int +__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up all threads waiting on this condition. */ +int +__objc_condition_broadcast(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* Wake up one thread waiting on this condition. */ +int +__objc_condition_signal(objc_condition_t condition) +{ + /* Unimplemented. */ + return -1; +} + +/* End of File */ diff --git a/contrib/libobjc/thr.c b/contrib/libobjc/thr.c new file mode 100644 index 0000000..17f6f7e --- /dev/null +++ b/contrib/libobjc/thr.c @@ -0,0 +1,563 @@ +/* GNU Objective C Runtime Thread Interface + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 2, or (at your option) any later version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +details. + +You should have received a copy of the GNU General Public License along with +GCC; see the file COPYING. If not, write to the Free Software +Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* As a special exception, if you link this library with files compiled with + GCC to produce an executable, this does not cause the resulting executable + to be covered by the GNU General Public License. This exception does not + however invalidate any other reasons why the executable file might be + covered by the GNU General Public License. */ + +#include <stdlib.h> +#include "objc/runtime.h" + +/* Global exit status. */ +int __objc_thread_exit_status = 0; + +/* Flag which lets us know if we ever became multi threaded */ +int __objc_is_multi_threaded = 0; + +/* The hook function called when the runtime becomes multi threaded */ +objc_thread_callback _objc_became_multi_threaded = NULL; + +/* + Use this to set the hook function that will be called when the + runtime initially becomes multi threaded. + The hook function is only called once, meaning only when the + 2nd thread is spawned, not for each and every thread. + + It returns the previous hook function or NULL if there is none. + + A program outside of the runtime could set this to some function so + it can be informed; for example, the GNUstep Base Library sets it + so it can implement the NSBecomingMultiThreaded notification. + */ +objc_thread_callback objc_set_thread_callback (objc_thread_callback func) +{ + objc_thread_callback temp = _objc_became_multi_threaded; + _objc_became_multi_threaded = func; + return temp; +} + +/* + Private functions + + These functions are utilized by the frontend, but they are not + considered part of the public interface. + */ + +/* + First function called in a thread, starts everything else. + + This function is passed to the backend by objc_thread_detach + as the starting function for a new thread. + */ +struct __objc_thread_start_state +{ + SEL selector; + id object; + id argument; +}; + +static void __attribute__((noreturn)) +__objc_thread_detach_function (struct __objc_thread_start_state *istate) +{ + /* Valid state? */ + if (istate) { + id (*imp) (id, SEL, id); + SEL selector = istate->selector; + id object = istate->object; + id argument = istate->argument; + + /* Don't need anymore so free it */ + objc_free (istate); + + /* Clear out the thread local storage */ + objc_thread_set_data (NULL); + + /* Check to see if we just became multi threaded */ + if (! __objc_is_multi_threaded) + { + __objc_is_multi_threaded = 1; + + /* Call the hook function */ + if (_objc_became_multi_threaded != NULL) + (*_objc_became_multi_threaded) (); + } + + /* Call the method */ + if ((imp = (id (*) (id, SEL, id))objc_msg_lookup (object, selector))) + (*imp) (object, selector, argument); + else + objc_error (object, OBJC_ERR_UNIMPLEMENTED, + "objc_thread_detach called with bad selector.\n"); + } + else + objc_error (nil, OBJC_ERR_BAD_STATE, + "objc_thread_detach called with NULL state.\n"); + + /* Exit the thread */ + objc_thread_exit (); +} + +/* + Frontend functions + + These functions constitute the public interface to the Objective-C thread + and mutex functionality. + */ + +/* Frontend thread functions */ + +/* + Detach a new thread of execution and return its id. Returns NULL if fails. + Thread is started by sending message with selector to object. Message + takes a single argument. + */ +objc_thread_t +objc_thread_detach (SEL selector, id object, id argument) +{ + struct __objc_thread_start_state *istate; + objc_thread_t thread_id = NULL; + + /* Allocate the state structure */ + if (! (istate = (struct __objc_thread_start_state *) + objc_malloc (sizeof (*istate)))) + return NULL; + + /* Initialize the state structure */ + istate->selector = selector; + istate->object = object; + istate->argument = argument; + + /* lock access */ + objc_mutex_lock (__objc_runtime_mutex); + + /* Call the backend to spawn the thread */ + if ((thread_id = __objc_thread_detach ((void *)__objc_thread_detach_function, + istate)) == NULL) + { + /* failed! */ + objc_mutex_unlock (__objc_runtime_mutex); + objc_free (istate); + return NULL; + } + + /* Increment our thread counter */ + __objc_runtime_threads_alive++; + objc_mutex_unlock (__objc_runtime_mutex); + + return thread_id; +} + +/* Set the current thread's priority. */ +int +objc_thread_set_priority (int priority) +{ + /* Call the backend */ + return __objc_thread_set_priority (priority); +} + +/* Return the current thread's priority. */ +int +objc_thread_get_priority (void) +{ + /* Call the backend */ + return __objc_thread_get_priority (); +} + +/* + Yield our process time to another thread. Any BUSY waiting that is done + by a thread should use this function to make sure that other threads can + make progress even on a lazy uniprocessor system. + */ +void +objc_thread_yield (void) +{ + /* Call the backend */ + __objc_thread_yield (); +} + +/* + Terminate the current tread. Doesn't return. + Actually, if it failed returns -1. + */ +int +objc_thread_exit (void) +{ + /* Decrement our counter of the number of threads alive */ + objc_mutex_lock (__objc_runtime_mutex); + __objc_runtime_threads_alive--; + objc_mutex_unlock (__objc_runtime_mutex); + + /* Call the backend to terminate the thread */ + return __objc_thread_exit (); +} + +/* + Returns an integer value which uniquely describes a thread. Must not be + NULL which is reserved as a marker for "no thread". + */ +objc_thread_t +objc_thread_id (void) +{ + /* Call the backend */ + return __objc_thread_id (); +} + +/* + Sets the thread's local storage pointer. + Returns 0 if successful or -1 if failed. + */ +int +objc_thread_set_data (void *value) +{ + /* Call the backend */ + return __objc_thread_set_data (value); +} + +/* + Returns the thread's local storage pointer. Returns NULL on failure. + */ +void * +objc_thread_get_data (void) +{ + /* Call the backend */ + return __objc_thread_get_data (); +} + +/* Frontend mutex functions */ + +/* + Allocate a mutex. Return the mutex pointer if successful or NULL if the + allocation failed for any reason. + */ +objc_mutex_t +objc_mutex_allocate (void) +{ + objc_mutex_t mutex; + + /* Allocate the mutex structure */ + if (! (mutex = (objc_mutex_t)objc_malloc (sizeof (struct objc_mutex)))) + return NULL; + + /* Call backend to create the mutex */ + if (__objc_mutex_allocate (mutex)) + { + /* failed! */ + objc_free (mutex); + return NULL; + } + + /* Initialize mutex */ + mutex->owner = NULL; + mutex->depth = 0; + return mutex; +} + +/* + Deallocate a mutex. Note that this includes an implicit mutex_lock to + insure that no one else is using the lock. It is legal to deallocate + a lock if we have a lock on it, but illegal to deallocate a lock held + by anyone else. + Returns the number of locks on the thread. (1 for deallocate). + */ +int +objc_mutex_deallocate (objc_mutex_t mutex) +{ + int depth; + + /* Valid mutex? */ + if (! mutex) + return -1; + + /* Acquire lock on mutex */ + depth = objc_mutex_lock (mutex); + + /* Call backend to destroy mutex */ + if (__objc_mutex_deallocate (mutex)) + return -1; + + /* Free the mutex structure */ + objc_free (mutex); + + /* Return last depth */ + return depth; +} + +/* + Grab a lock on a mutex. If this thread already has a lock on this mutex + then we increment the lock count. If another thread has a lock on the + mutex we block and wait for the thread to release the lock. + Returns the lock count on the mutex held by this thread. + */ +int +objc_mutex_lock (objc_mutex_t mutex) +{ + objc_thread_t thread_id; + int status; + + /* Valid mutex? */ + if (! mutex) + return -1; + + /* If we already own the lock then increment depth */ + thread_id = __objc_thread_id (); + if (mutex->owner == thread_id) + return ++mutex->depth; + + /* Call the backend to lock the mutex */ + status = __objc_mutex_lock (mutex); + + /* Failed? */ + if (status) + return status; + + /* Successfully locked the thread */ + mutex->owner = thread_id; + return mutex->depth = 1; +} + +/* + Try to grab a lock on a mutex. If this thread already has a lock on + this mutex then we increment the lock count and return it. If another + thread has a lock on the mutex returns -1. + */ +int +objc_mutex_trylock (objc_mutex_t mutex) +{ + objc_thread_t thread_id; + int status; + + /* Valid mutex? */ + if (! mutex) + return -1; + + /* If we already own the lock then increment depth */ + thread_id = __objc_thread_id (); + if (mutex->owner == thread_id) + return ++mutex->depth; + + /* Call the backend to try to lock the mutex */ + status = __objc_mutex_trylock (mutex); + + /* Failed? */ + if (status) + return status; + + /* Successfully locked the thread */ + mutex->owner = thread_id; + return mutex->depth = 1; +} + +/* + Unlocks the mutex by one level. + Decrements the lock count on this mutex by one. + If the lock count reaches zero, release the lock on the mutex. + Returns the lock count on the mutex. + It is an error to attempt to unlock a mutex which this thread + doesn't hold in which case return -1 and the mutex is unaffected. + */ +int +objc_mutex_unlock (objc_mutex_t mutex) +{ + objc_thread_t thread_id; + int status; + + /* Valid mutex? */ + if (! mutex) + return -1; + + /* If another thread owns the lock then abort */ + thread_id = __objc_thread_id (); + if (mutex->owner != thread_id) + return -1; + + /* Decrement depth and return */ + if (mutex->depth > 1) + return --mutex->depth; + + /* Depth down to zero so we are no longer the owner */ + mutex->depth = 0; + mutex->owner = NULL; + + /* Have the backend unlock the mutex */ + status = __objc_mutex_unlock (mutex); + + /* Failed? */ + if (status) + return status; + + return 0; +} + +/* Frontend condition mutex functions */ + +/* + Allocate a condition. Return the condition pointer if successful or NULL + if the allocation failed for any reason. + */ +objc_condition_t +objc_condition_allocate (void) +{ + objc_condition_t condition; + + /* Allocate the condition mutex structure */ + if (! (condition = + (objc_condition_t) objc_malloc (sizeof (struct objc_condition)))) + return NULL; + + /* Call the backend to create the condition mutex */ + if (__objc_condition_allocate (condition)) + { + /* failed! */ + objc_free (condition); + return NULL; + } + + /* Success! */ + return condition; +} + +/* + Deallocate a condition. Note that this includes an implicit + condition_broadcast to insure that waiting threads have the opportunity + to wake. It is legal to dealloc a condition only if no other + thread is/will be using it. Here we do NOT check for other threads + waiting but just wake them up. + */ +int +objc_condition_deallocate (objc_condition_t condition) +{ + /* Broadcast the condition */ + if (objc_condition_broadcast (condition)) + return -1; + + /* Call the backend to destroy */ + if (__objc_condition_deallocate (condition)) + return -1; + + /* Free the condition mutex structure */ + objc_free (condition); + + return 0; +} + +/* + Wait on the condition unlocking the mutex until objc_condition_signal () + or objc_condition_broadcast () are called for the same condition. The + given mutex *must* have the depth set to 1 so that it can be unlocked + here, so that someone else can lock it and signal/broadcast the condition. + The mutex is used to lock access to the shared data that make up the + "condition" predicate. + */ +int +objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) +{ + objc_thread_t thread_id; + + /* Valid arguments? */ + if (! mutex || ! condition) + return -1; + + /* Make sure we are owner of mutex */ + thread_id = __objc_thread_id (); + if (mutex->owner != thread_id) + return -1; + + /* Cannot be locked more than once */ + if (mutex->depth > 1) + return -1; + + /* Virtually unlock the mutex */ + mutex->depth = 0; + mutex->owner = (objc_thread_t)NULL; + + /* Call the backend to wait */ + __objc_condition_wait (condition, mutex); + + /* Make ourselves owner of the mutex */ + mutex->owner = thread_id; + mutex->depth = 1; + + return 0; +} + +/* + Wake up all threads waiting on this condition. It is recommended that + the called would lock the same mutex as the threads in objc_condition_wait + before changing the "condition predicate" and make this call and unlock it + right away after this call. + */ +int +objc_condition_broadcast (objc_condition_t condition) +{ + /* Valid condition mutex? */ + if (! condition) + return -1; + + return __objc_condition_broadcast (condition); +} + +/* + Wake up one thread waiting on this condition. It is recommended that + the called would lock the same mutex as the threads in objc_condition_wait + before changing the "condition predicate" and make this call and unlock it + right away after this call. + */ +int +objc_condition_signal (objc_condition_t condition) +{ + /* Valid condition mutex? */ + if (! condition) + return -1; + + return __objc_condition_signal (condition); +} + +/* Make the objc thread system aware that a thread which is managed + (started, stopped) by external code could access objc facilities + from now on. This is used when you are interfacing with some + external non-objc-based environment/system - you must call + objc_thread_add () before an alien thread makes any calls to + Objective-C. Do not cause the _objc_became_multi_threaded hook to + be executed. */ +void +objc_thread_add (void) +{ + objc_mutex_lock (__objc_runtime_mutex); + __objc_is_multi_threaded = 1; + __objc_runtime_threads_alive++; + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* Make the objc thread system aware that a thread managed (started, + stopped) by some external code will no longer access objc and thus + can be forgotten by the objc thread system. Call + objc_thread_remove () when your alien thread is done with making + calls to Objective-C. */ +void +objc_thread_remove (void) +{ + objc_mutex_lock (__objc_runtime_mutex); + __objc_runtime_threads_alive--; + objc_mutex_unlock (__objc_runtime_mutex); +} + +/* End of File */ |
