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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 %{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
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