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Diffstat (limited to 'contrib/gcc/config/sol2.h')
| -rw-r--r-- | contrib/gcc/config/sol2.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/contrib/gcc/config/sol2.h b/contrib/gcc/config/sol2.h new file mode 100644 index 0000000..c5980fb --- /dev/null +++ b/contrib/gcc/config/sol2.h @@ -0,0 +1,207 @@ +/* Operating system specific defines to be used when targeting GCC for any + Solaris 2 system. + Copyright 2002 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* We use stabs-in-elf for debugging, because that is what the native + toolchain uses. */ +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG + +/* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */ +#undef WCHAR_TYPE +#define WCHAR_TYPE "long int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE BITS_PER_WORD + +/* Solaris 2 uses a wint_t different from the default. This is required + by the SCD 2.4.1, p. 6-83, Figure 6-66. */ +#undef WINT_TYPE +#define WINT_TYPE "long int" + +#undef WINT_TYPE_SIZE +#define WINT_TYPE_SIZE BITS_PER_WORD + +#define HANDLE_PRAGMA_REDEFINE_EXTNAME 1 + +/* ??? Note: in order for -compat-bsd to work fully, + we must somehow arrange to fixincludes /usr/ucbinclude + and put the result in $(libsubdir)/ucbinclude. */ + +#undef CPP_SUBTARGET_SPEC +#define CPP_SUBTARGET_SPEC "\ +%{pthreads:-D_REENTRANT -D_PTHREADS} \ +%{!pthreads:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}} \ +%{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \ +" + +/* Names to predefine in the preprocessor for this target machine. */ +#define TARGET_OS_CPP_BUILTINS() \ + do { \ + builtin_define_std ("unix"); \ + builtin_define_std ("sun"); \ + builtin_define ("__svr4__"); \ + builtin_define ("__SVR4"); \ + builtin_define ("__PRAGMA_REDEFINE_EXTNAME"); \ + builtin_assert ("system=unix"); \ + builtin_assert ("system=svr4"); \ + /* For C++ we need to add some additional macro \ + definitions required by the C++ standard \ + library. */ \ + if (c_language == clk_cplusplus) \ + { \ + builtin_define ("_XOPEN_SOURCE=500"); \ + builtin_define ("_LARGEFILE_SOURCE=1"); \ + builtin_define ("_LARGEFILE64_SOURCE=1"); \ + builtin_define ("__EXTENSIONS__"); \ + } \ + } while (0) + +/* The sun bundled assembler doesn't accept -Yd, (and neither does gas). + It's safe to pass -s always, even if -g is not used. */ +#undef ASM_SPEC +#define ASM_SPEC "\ +%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ +%{fpic:-K PIC} %{fPIC:-K PIC} \ +%(asm_cpu) \ +" + +/* We don't use the standard LIB_SPEC only because we don't yet support c++. */ +#undef LIB_SPEC +#define LIB_SPEC \ + "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \ + %{!shared:\ + %{!symbolic:\ + %{pthreads:-lpthread} \ + %{!pthreads:%{threads:-lthread}} \ + %{p|pg:-ldl} -lc}}" + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "crtend.o%s crtn.o%s" + +/* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */ +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "%{!shared: \ + %{!symbolic: \ + %{p:mcrt1.o%s} \ + %{!p: \ + %{pg:gcrt1.o%s gmon.o%s} \ + %{!pg:crt1.o%s}}}} \ + crti.o%s %(startfile_arch) \ + crtbegin.o%s" + +#undef STARTFILE_ARCH32_SPEC +#define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \ + %{!ansi:values-Xa.o%s}" + +#undef STARTFILE_ARCH_SPEC +#define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC + +#undef LINK_ARCH32_SPEC +#define LINK_ARCH32_SPEC \ + "%{G:-G} \ + %{YP,*} \ + %{R*} \ + %{compat-bsd: \ + %{!YP,*:%{p|pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ + %{!p:%{!pg:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \ + -R /usr/ucblib} \ + %{!compat-bsd: \ + %{!YP,*:%{p|pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ + %{!p:%{!pg:-Y P,/usr/ccs/lib:/usr/lib}}}}" + +#undef LINK_ARCH_SPEC +#define LINK_ARCH_SPEC LINK_ARCH32_SPEC + +/* This should be the same as in svr4.h, except with -R added. */ +#undef LINK_SPEC +#define LINK_SPEC \ + "%{h*} %{v:-V} \ + %{b} %{Wl,*:%*} \ + %{static:-dn -Bstatic} \ + %{shared:-G -dy %{!mimpure-text:-z text}} \ + %{symbolic:-Bsymbolic -G -dy -z text} \ + %(link_arch) \ + %{Qy:} %{!Qn:-Qy}" + +/* This defines which switch letters take arguments. + It is as in svr4.h but with -R added. */ +#undef SWITCH_TAKES_ARG +#define SWITCH_TAKES_ARG(CHAR) \ + (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ + || (CHAR) == 'R' \ + || (CHAR) == 'h' \ + || (CHAR) == 'z') + +#define STDC_0_IN_SYSTEM_HEADERS 1 + +/* + * Attempt to turn on access permissions for the stack. + * + * This code must be defined when compiling gcc but not when compiling + * libgcc2.a, unless we're generating code for 64-bit SPARC + * + * _SC_STACK_PROT is only defined for post 2.6, but we want this code + * to run always. 2.6 can change the stack protection but has no way to + * query it. + * + */ + +/* This declares mprotect (used in TRANSFER_FROM_TRAMPOLINE) for + libgcc2.c. */ +/* We don't want to include this because sys/mman.h is not present on + some non-Solaris configurations that use sol2.h. */ +#if 0 /* def L_trampoline */ +#include <sys/mman.h> +#endif + +#define TRANSFER_FROM_TRAMPOLINE \ + \ +/* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \ + \ +static int need_enable_exec_stack; \ + \ +static void check_enabling(void) __attribute__ ((constructor)); \ +static void check_enabling(void) \ +{ \ + extern long sysconf(int); \ + \ + int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \ + if (prot != 7 /* STACK_PROT_RWX */) \ + need_enable_exec_stack = 1; \ +} \ + \ +extern void __enable_execute_stack (void *); \ +void \ +__enable_execute_stack (addr) \ + void *addr; \ +{ \ + if (!need_enable_exec_stack) \ + return; \ + else { \ + long size = getpagesize (); \ + long mask = ~(size-1); \ + char *page = (char *) (((long) addr) & mask); \ + char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ + \ + if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \ + perror ("mprotect of trampoline code"); \ + } \ +} |
