[thirdparty/gcc.git] / gcc / config / sparc / linux64.h

/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
   Copyright (C) 1996-2025 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_64BIT + MASK_PTR64 + MASK_STACK_BIAS + \
   MASK_V8PLUS + 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"

#undef	ENDFILE_SPEC
#define ENDFILE_SPEC \
  GNU_USER_TARGET_ENDFILE_SPEC \
  "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared: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 SPARC_LONG_DOUBLE_TYPE_SIZE
#define SPARC_LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)

#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

/* -fsanitize=address is currently only supported for 32-bit.  */
#define ASAN_REJECT_SPEC \
  "%{!%:sanitize(thread):%e-fsanitize=address is not supported in this configuration}"

#undef  ASAN_CC1_SPEC
#if DEFAULT_ARCH32_P
#define ASAN_CC1_SPEC \
  "%{%:sanitize(address):-funwind-tables %{m64:" ASAN_REJECT_SPEC "}}"
#else
#define ASAN_CC1_SPEC \
  "%{%:sanitize(address):-funwind-tables %{!m32:" ASAN_REJECT_SPEC "}}"
#endif

#undef  CC1_SPEC
#if DEFAULT_ARCH32_P
#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC \
"%{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 GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC \
"%{m32:%{m64:%emay not use both -m32 and -m64}} \
%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
  %{!mcpu*:-mcpu=cypress}} \
%{mv8plus:-m32 -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; likewise --with-cpu-32
     and --with-cpu-64.
   --with-tune is ignored if -mtune is specified; likewise --with-tune-32
     and --with-tune-64.
   --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.

   Note that the order of the cpu* and tune* options matters: the
   config.gcc file always sets with_cpu to some value, even if the
   user didn't use --with-cpu when invoking the configure script.
   This value is based on the target name.  Therefore we have to make
   sure that --with-cpu-32 takes precedence to --with-cpu in < v9
   systems, and that --with-cpu-64 takes precedence to --with-cpu in
   >= v9 systems.  As for the tune* options, in some platforms
   config.gcc also sets a default value for it if the user didn't use
   --with-tune when invoking the configure script.  */
#undef OPTION_DEFAULT_SPECS
#if DEFAULT_ARCH32_P
#define OPTION_DEFAULT_SPECS \
  {"cpu_32", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"cpu_64", "%{m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"tune_32", "%{!m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \
  {"tune_64", "%{m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \
  {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
  {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
#else
#define OPTION_DEFAULT_SPECS \
  {"cpu_32", "%{m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"cpu_64", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
  {"tune_32", "%{m32:%{!mtune=*:-mtune=%(VALUE)}}" },	\
  {"tune_64", "%{!m32:%{!mtune=*:-mtune=%(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 \
%{" FPIE_OR_FPIC_SPEC ":-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
\f
#ifdef HAVE_AS_TLS
#undef TARGET_SUN_TLS
#undef TARGET_GNU_TLS
#define TARGET_SUN_TLS 0
#define TARGET_GNU_TLS 1
#endif
\f
/* 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

#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
Commit	Line	Data
	1	/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
	2	Copyright (C) 1996-2025 Free Software Foundation, Inc.
	3	Contributed by David S. Miller (davem@caip.rutgers.edu)
	4
	5	This file is part of GCC.
	6
	7	GCC is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 3, or (at your option)
	10	any later version.
	11
	12	GCC is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GCC; see the file COPYING3. If not see
	19	<http://www.gnu.org/licenses/>. */
	20
	21	#define TARGET_OS_CPP_BUILTINS() \
	22	do \
	23	{ \
	24	GNU_USER_TARGET_OS_CPP_BUILTINS(); \
	25	if (TARGET_ARCH64) \
	26	builtin_define ("_LONGLONG"); \
	27	if (TARGET_ARCH32 \
	28	&& TARGET_LONG_DOUBLE_128) \
	29	builtin_define ("__LONG_DOUBLE_128__"); \
	30	} \
	31	while (0)
	32
	33	/* On Linux, the combination sparc64-* --with-cpu=v8 is supported and
	34	selects a 32-bit compiler. */
	35	#if defined(TARGET_64BIT_DEFAULT) && TARGET_CPU_DEFAULT >= TARGET_CPU_v9
	36	#undef TARGET_DEFAULT
	37	#define TARGET_DEFAULT \
	38	(MASK_V9 + MASK_64BIT + MASK_PTR64 + MASK_STACK_BIAS + \
	39	MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
	40	#endif
	41
	42	/* This must be v9a not just v9 because by default we enable
	43	-mvis. */
	44	#undef ASM_CPU64_DEFAULT_SPEC
	45	#define ASM_CPU64_DEFAULT_SPEC "-Av9a"
	46
	47	#undef ENDFILE_SPEC
	48	#define ENDFILE_SPEC \
	49	GNU_USER_TARGET_ENDFILE_SPEC \
	50	"%{Ofast\|ffast-math\|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}}"
	51
	52	/* The default code model. */
	53	#undef SPARC_DEFAULT_CMODEL
	54	#define SPARC_DEFAULT_CMODEL CM_MEDLOW
	55
	56	#undef WCHAR_TYPE
	57	#define WCHAR_TYPE "int"
	58
	59	#undef WCHAR_TYPE_SIZE
	60	#define WCHAR_TYPE_SIZE 32
	61
	62	/* Define for support of TFmode long double.
	63	SPARC ABI says that long double is 4 words. */
	64	#undef SPARC_LONG_DOUBLE_TYPE_SIZE
	65	#define SPARC_LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
	66
	67	#undef CPP_SUBTARGET_SPEC
	68	#define CPP_SUBTARGET_SPEC "\
	69	%{posix:-D_POSIX_SOURCE} \
	70	%{pthread:-D_REENTRANT} \
	71	"
	72
	73	/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
	74	for the special GCC options -static and -shared, which allow us to
	75	link things in one of these three modes by applying the appropriate
	76	combinations of options at link-time.
	77
	78	When the -shared link option is used a final link is not being
	79	done. */
	80
	81	#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
	82	#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
	83
	84	#ifdef SPARC_BI_ARCH
	85
	86	#undef SUBTARGET_EXTRA_SPECS
	87	#define SUBTARGET_EXTRA_SPECS \
	88	{ "link_arch32", LINK_ARCH32_SPEC }, \
	89	{ "link_arch64", LINK_ARCH64_SPEC }, \
	90	{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
	91	{ "link_arch", LINK_ARCH_SPEC },
	92
	93	#define LINK_ARCH32_SPEC "-m elf32_sparc %{shared:-shared} \
	94	%{!shared: \
	95	%{!static: \
	96	%{rdynamic:-export-dynamic} \
	97	-dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \
	98	%{static:-static}} \
	99	"
	100
	101	#define LINK_ARCH64_SPEC "-m elf64_sparc %{shared:-shared} \
	102	%{!shared: \
	103	%{!static: \
	104	%{rdynamic:-export-dynamic} \
	105	-dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
	106	%{static:-static}} \
	107	"
	108
	109	#define LINK_ARCH_SPEC "\
	110	%{m32:%(link_arch32)} \
	111	%{m64:%(link_arch64)} \
	112	%{!m32:%{!m64:%(link_arch_default)}} \
	113	"
	114
	115	#define LINK_ARCH_DEFAULT_SPEC \
	116	(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
	117
	118	#undef LINK_SPEC
	119	#define LINK_SPEC "\
	120	%(link_arch) \
	121	%{!mno-relax:%{!r:-relax}} \
	122	"
	123
	124	/* -mcpu=native handling only makes sense with compiler running on
	125	a SPARC chip. */
	126	#if defined(__sparc__) && defined(__linux__)
	127	extern const char host_detect_local_cpu (int argc, const char *argv);
	128	# define EXTRA_SPEC_FUNCTIONS \
	129	{ "local_cpu_detect", host_detect_local_cpu },
	130
	131	# define MCPU_MTUNE_NATIVE_SPECS \
	132	" %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \
	133	" %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
	134	#else
	135	# define MCPU_MTUNE_NATIVE_SPECS ""
	136	#endif
	137
	138	#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
	139
	140	/* -fsanitize=address is currently only supported for 32-bit. */
	141	#define ASAN_REJECT_SPEC \
	142	"%{!%:sanitize(thread):%e-fsanitize=address is not supported in this configuration}"
	143
	144	#undef ASAN_CC1_SPEC
	145	#if DEFAULT_ARCH32_P
	146	#define ASAN_CC1_SPEC \
	147	"%{%:sanitize(address):-funwind-tables %{m64:" ASAN_REJECT_SPEC "}}"
	148	#else
	149	#define ASAN_CC1_SPEC \
	150	"%{%:sanitize(address):-funwind-tables %{!m32:" ASAN_REJECT_SPEC "}}"
	151	#endif
	152
	153	#undef CC1_SPEC
	154	#if DEFAULT_ARCH32_P
	155	#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC \
	156	"%{m32:%{m64:%emay not use both -m32 and -m64}} \
	157	%{m64:-mptr64 -mstack-bias -mlong-double-128 \
	158	%{!mcpu*:-mcpu=ultrasparc} \
	159	%{!mno-vis:%{!mcpu=v9:-mvis}}}"
	160	#else
	161	#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC \
	162	"%{m32:%{m64:%emay not use both -m32 and -m64}} \
	163	%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
	164	%{!mcpu*:-mcpu=cypress}} \
	165	%{mv8plus:-m32 -mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
	166	%{!mcpu*:-mcpu=v9}} \
	167	%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
	168	%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}}"
	169	#endif
	170
	171	/* Support for a compile-time default CPU, et cetera. The rules are:
	172	--with-cpu is ignored if -mcpu is specified; likewise --with-cpu-32
	173	and --with-cpu-64.
	174	--with-tune is ignored if -mtune is specified; likewise --with-tune-32
	175	and --with-tune-64.
	176	--with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu
	177	are specified.
	178	In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)}
	179	here, otherwise say -mcpu=v7 would be passed even when -m64.
	180	CC1_SPEC above takes care of this instead.
	181
	182	Note that the order of the cpu* and tune* options matters: the
	183	config.gcc file always sets with_cpu to some value, even if the
	184	user didn't use --with-cpu when invoking the configure script.
	185	This value is based on the target name. Therefore we have to make
	186	sure that --with-cpu-32 takes precedence to --with-cpu in < v9
	187	systems, and that --with-cpu-64 takes precedence to --with-cpu in
	188	>= v9 systems. As for the tune* options, in some platforms
	189	config.gcc also sets a default value for it if the user didn't use
	190	--with-tune when invoking the configure script. */
	191	#undef OPTION_DEFAULT_SPECS
	192	#if DEFAULT_ARCH32_P
	193	#define OPTION_DEFAULT_SPECS \
	194	{"cpu_32", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	195	{"cpu_64", "%{m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	196	{"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	197	{"tune_32", "%{!m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \
	198	{"tune_64", "%{m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \
	199	{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
	200	{"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
	201	#else
	202	#define OPTION_DEFAULT_SPECS \
	203	{"cpu_32", "%{m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	204	{"cpu_64", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	205	{"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
	206	{"tune_32", "%{m32:%{!mtune=*:-mtune=%(VALUE)}}" }, \
	207	{"tune_64", "%{!m32:%{!mtune=*:-mtune=%(VALUE)}}" }, \
	208	{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
	209	{"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
	210	#endif
	211
	212	#if DEFAULT_ARCH32_P
	213	#define MULTILIB_DEFAULTS { "m32" }
	214	#else
	215	#define MULTILIB_DEFAULTS { "m64" }
	216	#endif
	217
	218	#else /* !SPARC_BI_ARCH */
	219
	220	#undef LINK_SPEC
	221	#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \
	222	%{!shared: \
	223	%{!static: \
	224	%{rdynamic:-export-dynamic} \
	225	-dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
	226	%{static:-static}} \
	227	%{!mno-relax:%{!r:-relax}} \
	228	"
	229
	230	#endif /* !SPARC_BI_ARCH */
	231
	232	/* It's safe to pass -s always, even if -g is not used. */
	233	#undef ASM_SPEC
	234	#define ASM_SPEC "\
	235	-s \
	236	%{" FPIE_OR_FPIC_SPEC ":-K PIC} \
	237	%{!.c:%{findirect-dispatch:-K PIC}} \
	238	%(asm_cpu) %(asm_arch) %(asm_relax)"
	239
	240	#undef ASM_OUTPUT_ALIGNED_LOCAL
	241	#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
	242	do { \
	243	fputs ("\t.local\t", (FILE)); \
	244	assemble_name ((FILE), (NAME)); \
	245	putc ('\n', (FILE)); \
	246	ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
	247	} while (0)
	248
	249	#undef COMMON_ASM_OP
	250	#define COMMON_ASM_OP "\t.common\t"
	251
	252	#undef LOCAL_LABEL_PREFIX
	253	#define LOCAL_LABEL_PREFIX "."
	254
	255	/* DWARF bits. */
	256
	257	/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
	258	Obviously the Dwarf2 folks haven't tried to actually build systems
	259	with their spec. On a 64-bit system, only 64-bit relocs become
	260	RELATIVE relocations. */
	261
	262	/* #define DWARF_OFFSET_SIZE PTR_SIZE */
	263
	264	#undef DITF_CONVERSION_LIBFUNCS
	265	#define DITF_CONVERSION_LIBFUNCS 1
	266	\f
	267	#ifdef HAVE_AS_TLS
	268	#undef TARGET_SUN_TLS
	269	#undef TARGET_GNU_TLS
	270	#define TARGET_SUN_TLS 0
	271	#define TARGET_GNU_TLS 1
	272	#endif
	273	\f
	274	/* We use GNU ld so undefine this so that attribute((init_priority)) works. */
	275	#undef CTORS_SECTION_ASM_OP
	276	#undef DTORS_SECTION_ASM_OP
	277
	278	/* Static stack checking is supported by means of probes. */
	279	#define STACK_CHECK_STATIC_BUILTIN 1
	280
	281	#undef NEED_INDICATE_EXEC_STACK
	282	#define NEED_INDICATE_EXEC_STACK 1
	283
	284	#ifdef TARGET_LIBC_PROVIDES_SSP
	285	/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14],
	286	sparc64 glibc provides it at [%g7 + 0x28]. */
	287	#define TARGET_THREAD_SSP_OFFSET (TARGET_ARCH64 ? 0x28 : 0x14)
	288	#endif
	289
	290	/* Define if long doubles should be mangled as 'g'. */
	291	#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
	292
	293	/* We use glibc _mcount for profiling. */
	294	#undef NO_PROFILE_COUNTERS
	295	#define NO_PROFILE_COUNTERS 1