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Diffstat (limited to 'gcc-4.9/gcc/config/sparc/linux64.h')
| -rw-r--r-- | gcc-4.9/gcc/config/sparc/linux64.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/sparc/linux64.h b/gcc-4.9/gcc/config/sparc/linux64.h new file mode 100644 index 000000000..f00fb42ff --- /dev/null +++ b/gcc-4.9/gcc/config/sparc/linux64.h @@ -0,0 +1,284 @@ +/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF. + Copyright (C) 1996-2014 Free Software Foundation, Inc. + Contributed by David S. Miller (davem@caip.rutgers.edu) + +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_ARCH64) \ + builtin_define ("_LONGLONG"); \ + if (TARGET_ARCH32 \ + && TARGET_LONG_DOUBLE_128) \ + builtin_define ("__LONG_DOUBLE_128__"); \ + } \ + while (0) + +/* On Linux, the combination sparc64-* --with-cpu=v8 is supported and + selects a 32-bit compiler. */ +#if defined(TARGET_64BIT_DEFAULT) && TARGET_CPU_DEFAULT >= TARGET_CPU_v9 +#undef TARGET_DEFAULT +#define TARGET_DEFAULT \ + (MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_STACK_BIAS + \ + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) +#endif + +/* This must be v9a not just v9 because by default we enable + -mvis. */ +#undef ASM_CPU64_DEFAULT_SPEC +#define ASM_CPU64_DEFAULT_SPEC "-Av9a" + +/* 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}" + +/* The default code model. */ +#undef SPARC_DEFAULT_CMODEL +#define SPARC_DEFAULT_CMODEL CM_MEDLOW + +#undef WCHAR_TYPE +#define WCHAR_TYPE "int" + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE 32 + +/* Define for support of TFmode long double. + SPARC ABI says that long double is 4 words. */ +#undef LONG_DOUBLE_TYPE_SIZE +#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. */ +#if defined(__arch64__) || defined(__LONG_DOUBLE_128__) +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 +#else +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 +#endif + +#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_LINKER32 "/lib/ld-linux.so.2" +#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2" + +#ifdef SPARC_BI_ARCH + +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + { "link_arch32", LINK_ARCH32_SPEC }, \ + { "link_arch64", LINK_ARCH64_SPEC }, \ + { "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \ + { "link_arch", LINK_ARCH_SPEC }, + +#define LINK_ARCH32_SPEC "-m elf32_sparc %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \ + %{static:-static}} \ +" + +#define LINK_ARCH64_SPEC "-m elf64_sparc %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \ + %{static:-static}} \ +" + +#define LINK_ARCH_SPEC "\ +%{m32:%(link_arch32)} \ +%{m64:%(link_arch64)} \ +%{!m32:%{!m64:%(link_arch_default)}} \ +" + +#define LINK_ARCH_DEFAULT_SPEC \ +(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC) + +#undef LINK_SPEC +#define LINK_SPEC "\ +%(link_arch) \ +%{!mno-relax:%{!r:-relax}} \ +" + +/* -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 + +#undef CC1_SPEC +#if DEFAULT_ARCH32_P +#define CC1_SPEC "%{profile:-p} \ +%{m32:%{m64:%emay not use both -m32 and -m64}} \ +%{m64:-mptr64 -mstack-bias -mlong-double-128 \ + %{!mcpu*:-mcpu=ultrasparc} \ + %{!mno-vis:%{!mcpu=v9:-mvis}}} \ +" +#else +#define CC1_SPEC "%{profile:-p} \ +%{m32:%{m64:%emay not use both -m32 and -m64}} \ +%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \ + %{!mcpu*:-mcpu=cypress}} \ +%{mv8plus:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \ + %{!mcpu*:-mcpu=v9}} \ +%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \ +%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \ +" +#endif + +/* Support for a compile-time default CPU, et cetera. The rules are: + --with-cpu is ignored if -mcpu is specified. + --with-tune is ignored if -mtune is specified. + --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu + are specified. + In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)} + here, otherwise say -mcpu=v7 would be passed even when -m64. + CC1_SPEC above takes care of this instead. */ +#undef OPTION_DEFAULT_SPECS +#if DEFAULT_ARCH32_P +#define OPTION_DEFAULT_SPECS \ + {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ + {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ + {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" } +#else +#define OPTION_DEFAULT_SPECS \ + {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ + {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ + {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" } +#endif + +#if DEFAULT_ARCH32_P +#define MULTILIB_DEFAULTS { "m32" } +#else +#define MULTILIB_DEFAULTS { "m64" } +#endif + +#else /* !SPARC_BI_ARCH */ + +#undef LINK_SPEC +#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \ + %{static:-static}} \ +%{!mno-relax:%{!r:-relax}} \ +" + +#endif /* !SPARC_BI_ARCH */ + +/* 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_arch) %(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 "." + +/* DWARF bits. */ + +/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets. + Obviously the Dwarf2 folks haven't tried to actually build systems + with their spec. On a 64-bit system, only 64-bit relocs become + RELATIVE relocations. */ + +/* #define DWARF_OFFSET_SIZE PTR_SIZE */ + +#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], + sparc64 glibc provides it at [%g7 + 0x28]. */ +#define TARGET_THREAD_SSP_OFFSET (TARGET_ARCH64 ? 0x28 : 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 |