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Diffstat (limited to 'gcc/config/sparc/linux.h')
| -rw-r--r-- | gcc/config/sparc/linux.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h new file mode 100644 index 0000000..5af67a6 --- /dev/null +++ b/gcc/config/sparc/linux.h @@ -0,0 +1,246 @@ +/* Definitions for SPARC running Linux-based GNU systems with ELF. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006 + Free Software Foundation, Inc. + Contributed by Eddie C. Dost (ecd@skynet.be) + +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. */ + +#define TARGET_OS_CPP_BUILTINS() \ + do \ + { \ + builtin_define_std ("unix"); \ + builtin_define_std ("linux"); \ + builtin_define ("__gnu_linux__"); \ + builtin_assert ("system=linux"); \ + builtin_assert ("system=unix"); \ + builtin_assert ("system=posix"); \ + if (TARGET_LONG_DOUBLE_128) \ + builtin_define ("__LONG_DOUBLE_128__"); \ + } \ + while (0) + +/* Don't assume anything about the header files. */ +#define NO_IMPLICIT_EXTERN_C + +#undef MD_EXEC_PREFIX +#undef MD_STARTFILE_PREFIX + +/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add + the GNU/Linux magical crtbegin.o file (see crtstuff.c) which + provides part of the support for getting C++ file-scope static + object constructed before entering `main'. */ + +#undef STARTFILE_SPEC +#if defined HAVE_LD_PIE +#define STARTFILE_SPEC \ + "%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\ + crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" +#else +#define STARTFILE_SPEC \ + "%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\ + crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" +#endif + +/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on + the GNU/Linux magical crtend.o file (see crtstuff.c) which + provides part of the support for getting C++ file-scope static + object constructed before entering `main', followed by a normal + GNU/Linux "finalizer" file, `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC \ + "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ + %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" + +/* This is for -profile to use -lc_p instead of -lc. */ +#undef CC1_SPEC +#define CC1_SPEC "%{profile:-p} \ +%{sun4:} %{target:} \ +%{mcypress:-mcpu=cypress} \ +%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \ +%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \ +" + +/* The GNU C++ standard library requires that these macros be defined. */ +#undef CPLUSPLUS_CPP_SPEC +#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" + +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)"); + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE 32 + +#undef CPP_SUBTARGET_SPEC +#define CPP_SUBTARGET_SPEC \ +"%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" + +#undef LIB_SPEC +#define LIB_SPEC \ + "%{pthread:-lpthread} \ + %{shared:-lc} \ + %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}" + +/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support + for the special GCC options -static and -shared, which allow us to + link things in one of these three modes by applying the appropriate + combinations of options at link-time. We like to support here for + as many of the other GNU linker options as possible. But I don't + have the time to search for those flags. I am sure how to add + support for -soname shared_object_name. H.J. + + I took out %{v:%{!V:-V}}. It is too much :-(. They can use + -Wl,-V. + + When the -shared link option is used a final link is not being + done. */ + +/* If ELF is the default format, we should not use /lib/elf. */ + +#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" +#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0" +#if UCLIBC_DEFAULT +#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}" +#else +#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}" +#endif +#define LINUX_DYNAMIC_LINKER \ + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER) + + +#undef LINK_SPEC +#define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \ + %{!mno-relax:%{!r:-relax}} \ + %{!shared: \ + %{!ibcs: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \ + %{static:-static}}}" + +/* 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:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ + %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)" + +/* Same as sparc.h */ +#undef DBX_REGISTER_NUMBER +#define DBX_REGISTER_NUMBER(REGNO) (REGNO) + +#undef ASM_OUTPUT_ALIGNED_LOCAL +#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ +do { \ + fputs ("\t.local\t", (FILE)); \ + assemble_name ((FILE), (NAME)); \ + putc ('\n', (FILE)); \ + ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ +} while (0) + +#undef COMMON_ASM_OP +#define COMMON_ASM_OP "\t.common\t" + +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + +/* This is how to store into the string LABEL + the symbol_ref name of an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. + This is suitable for output with `assemble_name'. */ + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ + sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM)) + + +/* Define for support of TFmode long double. + SPARC ABI says that long double is 4 words. */ +#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64) + +/* Define this to set long double type size to use in libgcc2.c, which can + not depend on target_flags. */ +#ifdef __LONG_DOUBLE_128__ +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 +#else +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 +#endif + +#undef DITF_CONVERSION_LIBFUNCS +#define DITF_CONVERSION_LIBFUNCS 1 + +#if defined(HAVE_LD_EH_FRAME_HDR) +#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " +#endif + +#ifdef HAVE_AS_TLS +#undef TARGET_SUN_TLS +#undef TARGET_GNU_TLS +#define TARGET_SUN_TLS 0 +#define TARGET_GNU_TLS 1 +#endif + +/* Don't be different from other Linux platforms in this regard. */ +#define HANDLE_PRAGMA_PACK_PUSH_POP + +/* We use GNU ld so undefine this so that attribute((init_priority)) works. */ +#undef CTORS_SECTION_ASM_OP +#undef DTORS_SECTION_ASM_OP + +/* Determine whether the entire c99 runtime is present in the + runtime library. */ +#define TARGET_C99_FUNCTIONS (OPTION_GLIBC) + +#define TARGET_POSIX_IO + +#undef LINK_GCC_C_SEQUENCE_SPEC +#define LINK_GCC_C_SEQUENCE_SPEC \ + "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" + +/* Use --as-needed -lgcc_s for eh support. */ +#ifdef HAVE_LD_AS_NEEDED +#define USE_LD_AS_NEEDED 1 +#endif + +#define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h" + +/* Linux currently uses RMO in uniprocessor mode, which is equivalent to + TMO, and TMO in multiprocessor mode. But they reserve the right to + change their minds. */ +#undef SPARC_RELAXED_ORDERING +#define SPARC_RELAXED_ORDERING true + +#undef NEED_INDICATE_EXEC_STACK +#define NEED_INDICATE_EXEC_STACK 1 + +#ifdef TARGET_LIBC_PROVIDES_SSP +/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */ +#define TARGET_THREAD_SSP_OFFSET 0x14 +#endif + +/* Define if long doubles should be mangled as 'g'. */ +#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING |
