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

/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
   Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
   Contributed by David S. Miller (davem@caip.rutgers.edu)

This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#define SPARC_BI_ARCH

#define LINUX_DEFAULT_ELF

/* Don't assume anything about the header files. */
#define NO_IMPLICIT_EXTERN_C

#include <sparc/sysv4.h>

#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX

#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
/* A 64 bit v9 compiler with stack-bias,
   in a Medium/Low code model environment.  */

#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
  (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
   + MASK_STACK_BIAS + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU + MASK_LONG_DOUBLE_128)
#endif

#undef ASM_CPU_DEFAULT_SPEC
#define ASM_CPU_DEFAULT_SPEC "-Av9a"

#ifdef SPARC_BI_ARCH

#undef CPP_ARCH32_SPEC
#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__} \
-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int \
-D__GCC_NEW_VARARGS__ -Acpu=sparc -Amachine=sparc"

#endif

/* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add
   the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
   provides part of the support for getting C++ file-scope static
   object constructed before entering `main'. */
   
#undef  STARTFILE_SPEC

#define STARTFILE_SPEC32 \
  "%{!shared: \
     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"

#define STARTFILE_SPEC64 \
  "%{!shared: \
     %{pg:/usr/lib64/gcrt1.o%s} %{!pg:%{p:/usr/lib64/gcrt1.o%s} %{!p:/usr/lib64/crt1.o%s}}}\
   /usr/lib64/crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
   
#ifdef SPARC_BI_ARCH

#if DEFAULT_ARCH32_P
#define STARTFILE_SPEC "\
%{m32:" STARTFILE_SPEC32 "} \
%{m64:" STARTFILE_SPEC64 "} \
%{!m32:%{!m64:" STARTFILE_SPEC32 "}}"
#else
#define STARTFILE_SPEC "\
%{m32:" STARTFILE_SPEC32 "} \
%{m64:" STARTFILE_SPEC64 "} \
%{!m32:%{!m64:" STARTFILE_SPEC64 "}}"
#endif

#else

#define STARTFILE_SPEC STARTFILE_SPEC64

#endif

/* 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_SPEC32 \
  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"

#define ENDFILE_SPEC64 \
  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} /usr/lib64/crtn.o%s"
  
#ifdef SPARC_BI_ARCH

#if DEFAULT_ARCH32_P
#define ENDFILE_SPEC "\
%{m32:" ENDFILE_SPEC32 "} \
%{m64:" ENDFILE_SPEC64 "} \
%{!m32:%{!m64:" ENDFILE_SPEC32 "}}"
#else
#define ENDFILE_SPEC "\
%{m32:" ENDFILE_SPEC32 "} \
%{m64:" ENDFILE_SPEC64 "} \
%{!m32:%{!m64:" ENDFILE_SPEC64 "}}"
#endif

#else

#define ENDFILE_SPEC ENDFILE_SPEC64

#endif

#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (sparc64 GNU/Linux with ELF)");

/* The default code model.  */
#undef SPARC_DEFAULT_CMODEL
#define SPARC_DEFAULT_CMODEL CM_MEDLOW

#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES						    \
{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") },  \
{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },

#undef WCHAR_TYPE
#define WCHAR_TYPE "int"

#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32

#undef MAX_WCHAR_TYPE_SIZE

/* Define for support of TFmode long double and REAL_ARITHMETIC.
   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)

/* Constant which presents upper bound of the above value.  */
#undef MAX_LONG_DOUBLE_TYPE_SIZE
#define MAX_LONG_DOUBLE_TYPE_SIZE 128

/* 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_PREDEFINES
#define CPP_PREDEFINES "-D__ELF__ -Dunix -D_LONGLONG -D__sparc__ -Dlinux -Asystem=unix -Asystem=posix"

#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC "\
%{fPIC:-D__PIC__ -D__pic__} \
%{fpic:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT} \
"

#undef LIB_SPEC
#define LIB_SPEC \
  "%{shared: -lc} \
   %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
     %{profile:-lc_p} %{!profile: -lc}}"

/* 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. We like to support here for
   as many of the other GNU linker options as possible. But I don't
   have the time to search for those flags. I am sure how to add
   support for -soname shared_object_name. H.J.

   I took out %{v:%{!V:-V}}. It is too much :-(. They can use
   -Wl,-V.

   When the -shared link option is used a final link is not being
   done.  */

/* If ELF is the default format, we should not use /lib/elf. */

#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,/usr/lib %{shared:-shared} \
  %{!shared: \
    %{!ibcs: \
      %{!static: \
        %{rdynamic:-export-dynamic} \
        %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
        %{static:-static}}} \
"

#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
  %{!shared: \
    %{!ibcs: \
      %{!static: \
        %{rdynamic:-export-dynamic} \
        %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
        %{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) \
%{mlittle-endian:-EL} \
%{!mno-relax:%{!r:-relax}} \
"

#undef	CC1_SPEC
#if DEFAULT_ARCH32_P
#define CC1_SPEC "\
%{sun4:} %{target:} \
%{mcypress:-mcpu=cypress} \
%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
%{m64:-mptr64 -mstack-bias -mlong-double-128 \
  %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
  %{!mno-vis:%{!mcpu=v9:-mvis}}} \
%{!m64:%{g*:%{!gs*:%{!gd*:%{!gx*:%{!gc*:-gstabs+}}}}}} \
"
#else
#define CC1_SPEC "\
%{sun4:} %{target:} \
%{mcypress:-mcpu=cypress} \
%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
  %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}} \
  %{g*:%{!gs*:%{!gd*:%{!gx*:%{!gc*:-gstabs+}}}}}} \
%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
"
#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,/usr/lib64 %{shared:-shared} \
  %{!shared: \
    %{!ibcs: \
      %{!static: \
        %{rdynamic:-export-dynamic} \
        %{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
        %{static:-static}}} \
%{mlittle-endian:-EL} \
%{!mno-relax:%{!r:-relax}} \
"

#endif /* !SPARC_BI_ARCH */

/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
   It's safe to pass -s always, even if -g is not used. */
#undef ASM_SPEC
#define ASM_SPEC "\
%{V} \
%{v:%{!V:-V}} \
%{!Qn:-Qy} \
%{n} \
%{T} \
%{Ym,*} \
%{Wa,*:%*} \
-s %{fpic:-K PIC} %{fPIC:-K PIC} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) %(asm_relax)"

/* Same as sparc.h */
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)

/* System V Release 4 uses DWARF debugging info.  Buf DWARF1 doesn't do
   64-bit anything, so we use DWARF2.  */

#undef DWARF2_DEBUGGING_INFO
#undef DWARF_DEBUGGING_INFO
#undef DBX_DEBUGGING_INFO
#define DWARF2_DEBUGGING_INFO
#define DBX_DEBUGGING_INFO

#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG

#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"

/* This is how to output a definition of an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.  */

#undef  ASM_OUTPUT_INTERNAL_LABEL
#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
  fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)

/* This is how to output a reference to an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.  */

#undef  ASM_OUTPUT_INTERNAL_LABELREF
#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM)	\
  fprintf (FILE, ".L%s%d", PREFIX, NUM)

/* This is how to store into the string LABEL
   the symbol_ref name of an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.
   This is suitable for output with `assemble_name'.  */

#undef  ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
  sprintf (LABEL, "*.L%s%d", PREFIX, NUM)

/* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
   ??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
   misnamed.  These should all refer to explicit sizes (half/word/xword?),
   anything other than short/int/long/etc.  */

#define UNALIGNED_DOUBLE_INT_ASM_OP	"\t.uaxword\t"

/* DWARF bits.  */

/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets. 
   Obviously the Dwarf2 folks havn'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 */
\f
#if TARGET_ARCH32
/* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
   traps available which can get and set the condition codes
   reliably.  */
#undef MACHINE_STATE_SAVE
#define MACHINE_STATE_SAVE(ID)				\
  unsigned long int ms_flags, ms_saveret;		\
  asm volatile("ta	0x20\n\t"			\
	       "mov	%%g1, %0\n\t"			\
	       "mov	%%g2, %1\n\t"			\
	       : "=r" (ms_flags), "=r" (ms_saveret));

#undef MACHINE_STATE_RESTORE
#define MACHINE_STATE_RESTORE(ID)			\
  asm volatile("mov	%0, %%g1\n\t"			\
	       "mov	%1, %%g2\n\t"			\
	       "ta	0x21\n\t"			\
	       : /* no outputs */			\
	       : "r" (ms_flags), "r" (ms_saveret));
#endif /* sparc32 */
Commit	Line	Data
956d6950	1	/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
047142d3	2	Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
bfe87013 DE	3	Contributed by David S. Miller (davem@caip.rutgers.edu)
	4
	5	This file is part of GNU CC.
	6
	7	GNU CC 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 2, or (at your option)
	10	any later version.
	11
	12	GNU CC 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 GNU CC; see the file COPYING. If not, write to
	19	the Free Software Foundation, 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
	21
345a6161	22	#define SPARC_BI_ARCH
bfe87013	23
a0a301fc	24	#define LINUX_DEFAULT_ELF
bfe87013 DE	25
	26	/* Don't assume anything about the header files. */
	27	#define NO_IMPLICIT_EXTERN_C
	28
bfe87013 DE	29	#include <sparc/sysv4.h>
	30
	31	#undef MD_EXEC_PREFIX
	32	#undef MD_STARTFILE_PREFIX
	33
345a6161 DM	34	#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \|\| TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
	35	/* A 64 bit v9 compiler with stack-bias,
	36	in a Medium/Low code model environment. */
	37
	38	#undef TARGET_DEFAULT
	39	#define TARGET_DEFAULT \
	40	(MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
4710d3eb	41	+ MASK_STACK_BIAS + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU + MASK_LONG_DOUBLE_128)
345a6161 DM	42	#endif
345a6161 DM	43
a0a301fc DE	44	#undef ASM_CPU_DEFAULT_SPEC
a0a301fc DE	45	#define ASM_CPU_DEFAULT_SPEC "-Av9a"
bfe87013	46
4710d3eb JJ	47	#ifdef SPARC_BI_ARCH
	48
	49	#undef CPP_ARCH32_SPEC
	50	#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__} \
	51	-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int \
2b57e919	52	-D__GCC_NEW_VARARGS__ -Acpu=sparc -Amachine=sparc"
4710d3eb JJ	53
	54	#endif
	55
956d6950 JL	56	/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
956d6950 JL	57	the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
bfe87013 DE	58	provides part of the support for getting C++ file-scope static
	59	object constructed before entering `main'. */
	60
	61	#undef STARTFILE_SPEC
345a6161 DM	62
345a6161 DM	63	#define STARTFILE_SPEC32 \
bfe87013 DE	64	"%{!shared: \
	65	%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
	66	crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
	67
345a6161 DM	68	#define STARTFILE_SPEC64 \
	69	"%{!shared: \
	70	%{pg:/usr/lib64/gcrt1.o%s} %{!pg:%{p:/usr/lib64/gcrt1.o%s} %{!p:/usr/lib64/crt1.o%s}}}\
	71	/usr/lib64/crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
	72
	73	#ifdef SPARC_BI_ARCH
	74
	75	#if DEFAULT_ARCH32_P
	76	#define STARTFILE_SPEC "\
	77	%{m32:" STARTFILE_SPEC32 "} \
	78	%{m64:" STARTFILE_SPEC64 "} \
	79	%{!m32:%{!m64:" STARTFILE_SPEC32 "}}"
	80	#else
	81	#define STARTFILE_SPEC "\
	82	%{m32:" STARTFILE_SPEC32 "} \
	83	%{m64:" STARTFILE_SPEC64 "} \
	84	%{!m32:%{!m64:" STARTFILE_SPEC64 "}}"
	85	#endif
	86
	87	#else
	88
	89	#define STARTFILE_SPEC STARTFILE_SPEC64
	90
	91	#endif
	92
956d6950 JL	93	/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
956d6950 JL	94	the GNU/Linux magical crtend.o file (see crtstuff.c) which
bfe87013 DE	95	provides part of the support for getting C++ file-scope static
bfe87013 DE	96	object constructed before entering `main', followed by a normal
956d6950	97	GNU/Linux "finalizer" file, `crtn.o'. */
bfe87013 DE	98
bfe87013 DE	99	#undef ENDFILE_SPEC
345a6161 DM	100
345a6161 DM	101	#define ENDFILE_SPEC32 \
bfe87013 DE	102	"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
bfe87013 DE	103
345a6161 DM	104	#define ENDFILE_SPEC64 \
	105	"%{!shared:crtend.o%s} %{shared:crtendS.o%s} /usr/lib64/crtn.o%s"
	106
	107	#ifdef SPARC_BI_ARCH
bfe87013	108
345a6161 DM	109	#if DEFAULT_ARCH32_P
	110	#define ENDFILE_SPEC "\
	111	%{m32:" ENDFILE_SPEC32 "} \
	112	%{m64:" ENDFILE_SPEC64 "} \
	113	%{!m32:%{!m64:" ENDFILE_SPEC32 "}}"
	114	#else
	115	#define ENDFILE_SPEC "\
	116	%{m32:" ENDFILE_SPEC32 "} \
	117	%{m64:" ENDFILE_SPEC64 "} \
	118	%{!m32:%{!m64:" ENDFILE_SPEC64 "}}"
	119	#endif
bfe87013	120
345a6161 DM	121	#else
	122
	123	#define ENDFILE_SPEC ENDFILE_SPEC64
	124
	125	#endif
	126
	127	#undef TARGET_VERSION
	128	#define TARGET_VERSION fprintf (stderr, " (sparc64 GNU/Linux with ELF)");
a0a301fc DE	129
	130	/* The default code model. */
	131	#undef SPARC_DEFAULT_CMODEL
be3f1ff5	132	#define SPARC_DEFAULT_CMODEL CM_MEDLOW
bfe87013	133
4710d3eb	134	#undef SUBTARGET_SWITCHES
047142d3 PT	135	#define SUBTARGET_SWITCHES \
	136	{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
	137	{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
4710d3eb	138
bfe87013	139	#undef WCHAR_TYPE
247cfc5c JJ	140	#define WCHAR_TYPE "int"
247cfc5c JJ	141
bfe87013	142	#undef WCHAR_TYPE_SIZE
247cfc5c JJ	143	#define WCHAR_TYPE_SIZE 32
	144
	145	#undef MAX_WCHAR_TYPE_SIZE
a0a301fc	146
4710d3eb JJ	147	/* Define for support of TFmode long double and REAL_ARITHMETIC.
4710d3eb JJ	148	Sparc ABI says that long double is 4 words. */
a0a301fc	149	#undef LONG_DOUBLE_TYPE_SIZE
4710d3eb JJ	150	#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
	151
	152	/* Constant which presents upper bound of the above value. */
	153	#undef MAX_LONG_DOUBLE_TYPE_SIZE
	154	#define MAX_LONG_DOUBLE_TYPE_SIZE 128
	155
	156	/* Define this to set long double type size to use in libgcc2.c, which can
	157	not depend on target_flags. */
	158	#if defined(__arch64__) \|\| defined(__LONG_DOUBLE_128__)
	159	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
	160	#else
	161	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
	162	#endif
345a6161	163
bfe87013	164	#undef CPP_PREDEFINES
2b57e919	165	#define CPP_PREDEFINES "-D__ELF__ -Dunix -D_LONGLONG -D__sparc__ -Dlinux -Asystem=unix -Asystem=posix"
bfe87013	166
a0a301fc DE	167	#undef CPP_SUBTARGET_SPEC
a0a301fc DE	168	#define CPP_SUBTARGET_SPEC "\
bfe87013 DE	169	%{fPIC:-D__PIC__ -D__pic__} \
bfe87013 DE	170	%{fpic:-D__PIC__ -D__pic__} \
bfe87013	171	%{posix:-D_POSIX_SOURCE} \
afc96791	172	%{pthread:-D_REENTRANT} \
bfe87013	173	"
afc96791	174
bfe87013 DE	175	#undef LIB_SPEC
bfe87013 DE	176	#define LIB_SPEC \
1398405b L	177	"%{shared: -lc} \
1398405b L	178	%{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
afc96791	179	%{profile:-lc_p} %{!profile: -lc}}"
bfe87013	180
956d6950	181	/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
bfe87013 DE	182	for the special GCC options -static and -shared, which allow us to
	183	link things in one of these three modes by applying the appropriate
	184	combinations of options at link-time. We like to support here for
	185	as many of the other GNU linker options as possible. But I don't
	186	have the time to search for those flags. I am sure how to add
	187	support for -soname shared_object_name. H.J.
	188
	189	I took out %{v:%{!V:-V}}. It is too much :-(. They can use
	190	-Wl,-V.
	191
	192	When the -shared link option is used a final link is not being
	193	done. */
	194
	195	/* If ELF is the default format, we should not use /lib/elf. */
	196
345a6161 DM	197	#ifdef SPARC_BI_ARCH
	198
	199	#undef SUBTARGET_EXTRA_SPECS
	200	#define SUBTARGET_EXTRA_SPECS \
	201	{ "link_arch32", LINK_ARCH32_SPEC }, \
	202	{ "link_arch64", LINK_ARCH64_SPEC }, \
	203	{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
	204	{ "link_arch", LINK_ARCH_SPEC },
	205
	206	#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
	207	%{!shared: \
	208	%{!ibcs: \
	209	%{!static: \
	210	%{rdynamic:-export-dynamic} \
	211	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
	212	%{static:-static}}} \
	213	"
	214
	215	#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
	216	%{!shared: \
	217	%{!ibcs: \
	218	%{!static: \
	219	%{rdynamic:-export-dynamic} \
	220	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
	221	%{static:-static}}} \
	222	"
	223
	224	#define LINK_ARCH_SPEC "\
	225	%{m32:%(link_arch32)} \
	226	%{m64:%(link_arch64)} \
	227	%{!m32:%{!m64:%(link_arch_default)}} \
	228	"
	229
	230	#define LINK_ARCH_DEFAULT_SPEC \
	231	(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
	232
bfe87013	233	#undef LINK_SPEC
345a6161 DM	234	#define LINK_SPEC "\
	235	%(link_arch) \
	236	%{mlittle-endian:-EL} \
e95b1e6a	237	%{!mno-relax:%{!r:-relax}} \
345a6161 DM	238	"
	239
	240	#undef CC1_SPEC
	241	#if DEFAULT_ARCH32_P
	242	#define CC1_SPEC "\
	243	%{sun4:} %{target:} \
	244	%{mcypress:-mcpu=cypress} \
	245	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	246	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
4710d3eb	247	%{m64:-mptr64 -mstack-bias -mlong-double-128 \
247cfc5c JJ	248	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
247cfc5c JJ	249	%{!mno-vis:%{!mcpu=v9:-mvis}}} \
31cedf89	250	%{!m64:%{g:%{!gs:%{!gd:%{!gx:%{!gc*:-gstabs+}}}}}} \
345a6161 DM	251	"
	252	#else
	253	#define CC1_SPEC "\
	254	%{sun4:} %{target:} \
	255	%{mcypress:-mcpu=cypress} \
	256	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	257	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
4710d3eb	258	%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
31cedf89 JJ	259	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}} \
31cedf89 JJ	260	%{g:%{!gs:%{!gd:%{!gx:%{!gc*:-gstabs+}}}}}} \
9ce13279	261	%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
247cfc5c	262	%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
345a6161 DM	263	"
	264	#endif
	265
	266	#if DEFAULT_ARCH32_P
	267	#define MULTILIB_DEFAULTS { "m32" }
	268	#else
	269	#define MULTILIB_DEFAULTS { "m64" }
	270	#endif
	271
	272	#else /* !SPARC_BI_ARCH */
	273
	274	#undef LINK_SPEC
e95b1e6a	275	#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
bfe87013 DE	276	%{!shared: \
	277	%{!ibcs: \
	278	%{!static: \
	279	%{rdynamic:-export-dynamic} \
345a6161	280	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
bfe87013 DE	281	%{static:-static}}} \
bfe87013 DE	282	%{mlittle-endian:-EL} \
e95b1e6a	283	%{!mno-relax:%{!r:-relax}} \
bfe87013 DE	284	"
bfe87013 DE	285
345a6161 DM	286	#endif /* !SPARC_BI_ARCH */
345a6161 DM	287
bfe87013 DE	288	/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
	289	It's safe to pass -s always, even if -g is not used. */
	290	#undef ASM_SPEC
	291	#define ASM_SPEC "\
	292	%{V} \
	293	%{v:%{!V:-V}} \
	294	%{!Qn:-Qy} \
	295	%{n} \
	296	%{T} \
	297	%{Ym,*} \
	298	%{Wa,:%} \
	299	-s %{fpic:-K PIC} %{fPIC:-K PIC} \
	300	%{mlittle-endian:-EL} \
e95b1e6a	301	%(asm_cpu) %(asm_arch) %(asm_relax)"
bfe87013 DE	302
	303	/* Same as sparc.h */
	304	#undef DBX_REGISTER_NUMBER
	305	#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
	306
	307	/* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
	308	64-bit anything, so we use DWARF2. */
	309
	310	#undef DWARF2_DEBUGGING_INFO
	311	#undef DWARF_DEBUGGING_INFO
	312	#undef DBX_DEBUGGING_INFO
	313	#define DWARF2_DEBUGGING_INFO
	314	#define DBX_DEBUGGING_INFO
	315
	316	#undef PREFERRED_DEBUGGING_TYPE
	317	#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
	318
	319	#undef ASM_OUTPUT_ALIGNED_LOCAL
	320	#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
	321	do { \
	322	fputs ("\t.local\t", (FILE)); \
	323	assemble_name ((FILE), (NAME)); \
	324	putc ('\n', (FILE)); \
	325	ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
	326	} while (0)
	327
	328	#undef COMMON_ASM_OP
471b6f1b	329	#define COMMON_ASM_OP "\t.common\t"
bfe87013 DE	330
	331	/* This is how to output a definition of an internal numbered label where
	332	PREFIX is the class of label and NUM is the number within the class. */
	333
	334	#undef ASM_OUTPUT_INTERNAL_LABEL
	335	#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
	336	fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
	337
	338	/* This is how to output a reference to an internal numbered label where
	339	PREFIX is the class of label and NUM is the number within the class. */
	340
	341	#undef ASM_OUTPUT_INTERNAL_LABELREF
	342	#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
	343	fprintf (FILE, ".L%s%d", PREFIX, NUM)
	344
	345	/* This is how to store into the string LABEL
	346	the symbol_ref name of an internal numbered label where
	347	PREFIX is the class of label and NUM is the number within the class.
	348	This is suitable for output with `assemble_name'. */
	349
	350	#undef ASM_GENERATE_INTERNAL_LABEL
	351	#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
	352	sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
	353
bfe87013 DE	354	/* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
	355	??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
	356	misnamed. These should all refer to explicit sizes (half/word/xword?),
	357	anything other than short/int/long/etc. */
	358
471b6f1b	359	#define UNALIGNED_DOUBLE_INT_ASM_OP "\t.uaxword\t"
bfe87013 DE	360
	361	/* DWARF bits. */
	362
	363	/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
	364	Obviously the Dwarf2 folks havn't tried to actually build systems
	365	with their spec. On a 64-bit system, only 64-bit relocs become
	366	RELATIVE relocations. */
	367
	368	/* #define DWARF_OFFSET_SIZE PTR_SIZE */
f7e0e539	369	\f
a330e73b	370	#if TARGET_ARCH32
f7e0e539 DM	371	/* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
	372	traps available which can get and set the condition codes
	373	reliably. */
	374	#undef MACHINE_STATE_SAVE
	375	#define MACHINE_STATE_SAVE(ID) \
	376	unsigned long int ms_flags, ms_saveret; \
	377	asm volatile("ta 0x20\n\t" \
	378	"mov %%g1, %0\n\t" \
	379	"mov %%g2, %1\n\t" \
	380	: "=r" (ms_flags), "=r" (ms_saveret));
	381
	382	#undef MACHINE_STATE_RESTORE
	383	#define MACHINE_STATE_RESTORE(ID) \
	384	asm volatile("mov %0, %%g1\n\t" \
	385	"mov %1, %%g2\n\t" \
	386	"ta 0x21\n\t" \
	387	: /* no outputs */ \
	388	: "r" (ms_flags), "r" (ms_saveret));
a330e73b	389	#endif /* sparc32 */