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/* 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)
#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
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