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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, 2012 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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