?? linux.h
字號:
/* Definitions for SPARC running Linux-based GNU systems with ELF. Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005 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 modifyit under the terms of the GNU General Public License as published bythe 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 ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with GCC; see the file COPYING. If not, write tothe 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 (flag_pic) \ { \ builtin_define ("__PIC__"); \ builtin_define ("__pic__"); \ } \ } \ 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} %{mlong-double-128:-D__LONG_DOUBLE_128__}"#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. */#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 /lib/ld-linux.so.2}} \ %{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 1#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
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -