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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [sparc/] [linux64.h] - Rev 714
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/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF. Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 -Y P,%R/usr/lib %{shared:-shared} \ %{!shared: \ %{!static: \ %{rdynamic:-export-dynamic} \ -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \ %{static:-static}} \ " #define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{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
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