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Diffstat (limited to 'gcc-4.9/gcc/config/sparc/linux.h')
| -rw-r--r-- | gcc-4.9/gcc/config/sparc/linux.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/sparc/linux.h b/gcc-4.9/gcc/config/sparc/linux.h new file mode 100644 index 000000000..c54ba2cb5 --- /dev/null +++ b/gcc-4.9/gcc/config/sparc/linux.h @@ -0,0 +1,169 @@ +/* Definitions for SPARC running Linux-based GNU systems with ELF. + Copyright (C) 1996-2014 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 \ + { \ + GNU_USER_TARGET_OS_CPP_BUILTINS(); \ + if (TARGET_LONG_DOUBLE_128) \ + builtin_define ("__LONG_DOUBLE_128__"); \ + } \ + while (0) + +/* 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 \ + "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\ + %{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}" + +/* -mcpu=native handling only makes sense with compiler running on + a SPARC chip. */ +#if defined(__sparc__) && defined(__linux__) +extern const char *host_detect_local_cpu (int argc, const char **argv); +# define EXTRA_SPEC_FUNCTIONS \ + { "local_cpu_detect", host_detect_local_cpu }, + +# define MCPU_MTUNE_NATIVE_SPECS \ + " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \ + " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}" +#else +# define MCPU_MTUNE_NATIVE_SPECS "" +#endif + +#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS + +/* This is for -profile to use -lc_p instead of -lc. */ +#undef CC1_SPEC +#define CC1_SPEC "%{profile:-p} \ +" + +#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}" + +/* 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. + + When the -shared link option is used a final link is not being + done. */ + +#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" + +#undef LINK_SPEC +#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \ + %{!mno-relax:%{!r:-relax}} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \ + %{static:-static}}" + +/* It's safe to pass -s always, even if -g is not used. */ +#undef ASM_SPEC +#define ASM_SPEC "\ +-s \ +%{fpic|fPIC|fpie|fPIE:-K PIC} \ +%{!.c:%{findirect-dispatch:-K PIC}} \ +%(asm_cpu) %(asm_relax)" + +#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 "." + + +/* 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 + +#ifdef HAVE_AS_TLS +#undef TARGET_SUN_TLS +#undef TARGET_GNU_TLS +#define TARGET_SUN_TLS 0 +#define TARGET_GNU_TLS 1 +#endif + +/* We use GNU ld so undefine this so that attribute((init_priority)) works. */ +#undef CTORS_SECTION_ASM_OP +#undef DTORS_SECTION_ASM_OP + +/* Static stack checking is supported by means of probes. */ +#define STACK_CHECK_STATIC_BUILTIN 1 + +/* 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 + +/* We use glibc _mcount for profiling. */ +#undef NO_PROFILE_COUNTERS +#define NO_PROFILE_COUNTERS 1 |