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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [sparc/] [linux.h] - Rev 193
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/* Definitions for SPARC running Linux-based GNU systems with ELF. Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007 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 3, 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 COPYING3. If not see <http://www.gnu.org/licenses/>. */ #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
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