[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, 2002 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 TARGET_OS_CPP_BUILTINS()		\
  do						\
    {						\
	builtin_define_std ("unix");		\
	builtin_define_std ("linux");		\
	builtin_define ("_LONGLONG");		\
	builtin_define ("__gnu_linux__");	\
	builtin_assert ("system=unix");		\
	builtin_assert ("system=posix");	\
    }						\
  while (0)

#define LINUX_DEFAULT_ELF

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

#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_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__}"

#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_SPEC \
  "%{!shared:%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
   crti.o%s %{static:crtbeginT.o%s}\
   %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"

/* 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:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s\
   %{ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"

/* The GNU C++ standard library requires that these macros be defined.  */
#undef CPLUSPLUS_CPP_SPEC
#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"

#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

/* 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)

/* 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_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 \
  "%{pthread:-lpthread} \
   %{shared:-lc} \
   %{!shared: %{mieee-fp:-lieee} %{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} \
%{m32:%{m64:%emay not use both -m32 and -m64}} \
%{m64:-mptr64 -mstack-bias -mlong-double-128 \
  %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
  %{!mno-vis:%{!mcpu=v9:-mvis}}} \
"
#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:%{m64:%emay not use both -m32 and -m64}} \
%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
  %{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}}} \
%{!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 DWARF_DEBUGGING_INFO
#define DWARF2_DEBUGGING_INFO 1
#define DBX_DEBUGGING_INFO 1

#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  "."

/* 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%ld", PREFIX, (long)(NUM))

/* 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 */

#if defined(HAVE_LD_EH_FRAME_HDR)
#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
#endif
\f
/* Don't be different from other Linux platforms in this regard.  */
#define HANDLE_PRAGMA_PACK_PUSH_POP

/* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
#undef CTORS_SECTION_ASM_OP
#undef DTORS_SECTION_ASM_OP

/* Do code reading to identify a signal frame, and set the frame
   state data appropriately.  See unwind-dw2.c for the structs.  */

/* Handle multilib correctly.  */
#if defined(__arch64__)
/* 64-bit SPARC version */
#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS)		\
  do {									\
    unsigned int *pc_ = (CONTEXT)->ra;					\
    long new_cfa_, i_;							\
    long regs_off_, fpu_save_off_;					\
    long this_cfa_, fpu_save_;						\
									\
    if (pc_[0] != 0x82102065		/* mov NR_rt_sigreturn, %g1 */	\
        || pc_[1] != 0x91d0206d)		/* ta 0x6d */		\
      break;								\
    regs_off_ = 192 + 128;						\
    fpu_save_off_ = regs_off_ + (16 * 8) + (3 * 8) + (2 * 4);		\
    this_cfa_ = (long) (CONTEXT)->cfa;					\
    new_cfa_ = *(long *)(((CONTEXT)->cfa) + (regs_off_ + (14 * 8)));	\
    new_cfa_ += 2047; /* Stack bias */					\
    fpu_save_ = *(long *)((this_cfa_) + (fpu_save_off_));		\
    (FS)->cfa_how = CFA_REG_OFFSET;					\
    (FS)->cfa_reg = 14;							\
    (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa;		\
    for (i_ = 1; i_ < 16; ++i_)						\
      {									\
	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET;			\
	(FS)->regs.reg[i_].loc.offset =					\
	  this_cfa_ + (regs_off_ + (i_ * 8)) - new_cfa_;		\
      }									\
    for (i_ = 0; i_ < 16; ++i_)						\
      {									\
	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET;			\
	(FS)->regs.reg[i_ + 16].loc.offset =				\
	  this_cfa_ + (i_ * 8) - new_cfa_;				\
      }									\
    if (fpu_save_)							\
      {									\
	for (i_ = 0; i_ < 64; ++i_)					\
	  {								\
            if (i_ > 32 && (i_ & 0x1))					\
              continue;							\
	    (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET;		\
	    (FS)->regs.reg[i_ + 32].loc.offset =			\
	      (fpu_save_ + (i_ * 4)) - new_cfa_;			\
	  }								\
      }									\
    /* Stick return address into %g0, same trick Alpha uses.  */	\
    (FS)->regs.reg[0].how = REG_SAVED_OFFSET;				\
    (FS)->regs.reg[0].loc.offset =					\
      this_cfa_ + (regs_off_ + (16 * 8) + 8) - new_cfa_;		\
    (FS)->retaddr_column = 0;						\
    goto SUCCESS;							\
  } while (0)
#else
/* 32-bit SPARC version */
#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS)		\
  do {									\
    unsigned int *pc_ = (CONTEXT)->ra;					\
    int new_cfa_, i_, oldstyle_;					\
    int regs_off_, fpu_save_off_;					\
    int fpu_save_, this_cfa_;						\
									\
    if (pc_[1] != 0x91d02010)		/* ta 0x10 */			\
      break;								\
    if (pc_[0] == 0x821020d8)		/* mov NR_sigreturn, %g1 */	\
      oldstyle_ = 1;							\
    else if (pc_[0] == 0x82102065)	/* mov NR_rt_sigreturn, %g1 */	\
      oldstyle_ = 0;							\
    else								\
      break;								\
    if (oldstyle_)							\
      {									\
        regs_off_ = 96;							\
        fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4);			\
      }									\
    else								\
      {									\
        regs_off_ = 96 + 128;						\
        fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4);	\
      }									\
    this_cfa_ = (int) (CONTEXT)->cfa;					\
    new_cfa_ = *(int *)(((CONTEXT)->cfa) + (regs_off_+(4*4)+(14 * 4)));	\
    fpu_save_ = *(int *)((this_cfa_) + (fpu_save_off_));		\
    (FS)->cfa_how = CFA_REG_OFFSET;					\
    (FS)->cfa_reg = 14;							\
    (FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa;			\
    for (i_ = 1; i_ < 16; ++i_)						\
      {									\
        if (i_ == 14)							\
          continue;							\
	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET;			\
	(FS)->regs.reg[i_].loc.offset =					\
	   this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_;		\
      }									\
    for (i_ = 0; i_ < 16; ++i_)						\
      {									\
	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET;			\
	(FS)->regs.reg[i_ + 16].loc.offset =				\
	  this_cfa_ + (i_ * 4) - new_cfa_;				\
      }									\
    if (fpu_save_)							\
      {									\
	for (i_ = 0; i_ < 32; ++i_)					\
	  {								\
	    (FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET;		\
	    (FS)->regs.reg[i_ + 32].loc.offset =			\
	      (fpu_save_ + (i_ * 4)) - new_cfa_;			\
	  }								\
      }									\
    /* Stick return address into %g0, same trick Alpha uses.  */	\
    (FS)->regs.reg[0].how = REG_SAVED_OFFSET;				\
    (FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_;	\
    (FS)->retaddr_column = 0;						\
    goto SUCCESS;							\
  } while (0)
#endif
Commit	Line	Data
956d6950	1	/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.
5bbcd587	2	Copyright 1996, 1997, 1998, 2000, 2002 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
9b8466f4 NB	22	#define TARGET_OS_CPP_BUILTINS() \
	23	do \
	24	{ \
	25	builtin_define_std ("unix"); \
	26	builtin_define_std ("linux"); \
	27	builtin_define ("_LONGLONG"); \
	28	builtin_define ("__gnu_linux__"); \
9b8466f4 NB	29	builtin_assert ("system=unix"); \
	30	builtin_assert ("system=posix"); \
	31	} \
	32	while (0)
	33
a0a301fc	34	#define LINUX_DEFAULT_ELF
bfe87013	35
80ffc95e	36	/* Don't assume anything about the header files. */
bfe87013 DE	37	#define NO_IMPLICIT_EXTERN_C
bfe87013 DE	38
bfe87013 DE	39	#undef MD_EXEC_PREFIX
	40	#undef MD_STARTFILE_PREFIX
	41
345a6161 DM	42	#if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \|\| TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
	43	/* A 64 bit v9 compiler with stack-bias,
	44	in a Medium/Low code model environment. */
	45
	46	#undef TARGET_DEFAULT
	47	#define TARGET_DEFAULT \
	48	(MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
33074e5f	49	+ MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
345a6161 DM	50	#endif
345a6161 DM	51
a0a301fc DE	52	#undef ASM_CPU_DEFAULT_SPEC
a0a301fc DE	53	#define ASM_CPU_DEFAULT_SPEC "-Av9a"
bfe87013	54
4710d3eb JJ	55	#ifdef SPARC_BI_ARCH
	56
	57	#undef CPP_ARCH32_SPEC
9b8466f4	58	#define CPP_ARCH32_SPEC "%{mlong-double-128:-D__LONG_DOUBLE_128__}"
4710d3eb JJ	59
	60	#endif
	61
956d6950 JL	62	/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
956d6950 JL	63	the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
bfe87013	64	provides part of the support for getting C++ file-scope static
80ffc95e	65	object constructed before entering `main'. */
bfe87013 DE	66
bfe87013 DE	67	#undef STARTFILE_SPEC
345a6161	68
5bbcd587 JJ	69	#define STARTFILE_SPEC \
	70	"%{!shared:%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
	71	crti.o%s %{static:crtbeginT.o%s}\
275b60d6	72	%{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
bfe87013	73
956d6950 JL	74	/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
956d6950 JL	75	the GNU/Linux magical crtend.o file (see crtstuff.c) which
bfe87013 DE	76	provides part of the support for getting C++ file-scope static
bfe87013 DE	77	object constructed before entering `main', followed by a normal
956d6950	78	GNU/Linux "finalizer" file, `crtn.o'. */
bfe87013 DE	79
bfe87013 DE	80	#undef ENDFILE_SPEC
345a6161	81
5bbcd587 JJ	82	#define ENDFILE_SPEC \
	83	"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s\
	84	%{ffast-math\|funsafe-math-optimizations:crtfastmath.o%s}"
345a6161	85
2be1602e DM	86	/* The GNU C++ standard library requires that these macros be defined. */
	87	#undef CPLUSPLUS_CPP_SPEC
	88	#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
	89
345a6161 DM	90	#undef TARGET_VERSION
345a6161 DM	91	#define TARGET_VERSION fprintf (stderr, " (sparc64 GNU/Linux with ELF)");
a0a301fc DE	92
	93	/* The default code model. */
	94	#undef SPARC_DEFAULT_CMODEL
be3f1ff5	95	#define SPARC_DEFAULT_CMODEL CM_MEDLOW
bfe87013	96
4710d3eb	97	#undef SUBTARGET_SWITCHES
047142d3 PT	98	#define SUBTARGET_SWITCHES \
	99	{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
	100	{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
4710d3eb	101
bfe87013	102	#undef WCHAR_TYPE
247cfc5c JJ	103	#define WCHAR_TYPE "int"
247cfc5c JJ	104
bfe87013	105	#undef WCHAR_TYPE_SIZE
247cfc5c JJ	106	#define WCHAR_TYPE_SIZE 32
247cfc5c JJ	107
ba31d94e	108	/* Define for support of TFmode long double.
56149abc	109	SPARC ABI says that long double is 4 words. */
a0a301fc	110	#undef LONG_DOUBLE_TYPE_SIZE
4710d3eb JJ	111	#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
	112
	113	/* Constant which presents upper bound of the above value. */
	114	#undef MAX_LONG_DOUBLE_TYPE_SIZE
	115	#define MAX_LONG_DOUBLE_TYPE_SIZE 128
	116
	117	/* Define this to set long double type size to use in libgcc2.c, which can
	118	not depend on target_flags. */
	119	#if defined(__arch64__) \|\| defined(__LONG_DOUBLE_128__)
	120	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
	121	#else
	122	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
	123	#endif
345a6161	124
a0a301fc DE	125	#undef CPP_SUBTARGET_SPEC
a0a301fc DE	126	#define CPP_SUBTARGET_SPEC "\
bfe87013 DE	127	%{fPIC:-D__PIC__ -D__pic__} \
bfe87013 DE	128	%{fpic:-D__PIC__ -D__pic__} \
bfe87013	129	%{posix:-D_POSIX_SOURCE} \
afc96791	130	%{pthread:-D_REENTRANT} \
bfe87013	131	"
afc96791	132
bfe87013 DE	133	#undef LIB_SPEC
bfe87013 DE	134	#define LIB_SPEC \
17772b2a JJ	135	"%{pthread:-lpthread} \
	136	%{shared:-lc} \
	137	%{!shared: %{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
bfe87013	138
956d6950	139	/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
bfe87013 DE	140	for the special GCC options -static and -shared, which allow us to
	141	link things in one of these three modes by applying the appropriate
	142	combinations of options at link-time. We like to support here for
	143	as many of the other GNU linker options as possible. But I don't
	144	have the time to search for those flags. I am sure how to add
	145	support for -soname shared_object_name. H.J.
	146
	147	I took out %{v:%{!V:-V}}. It is too much :-(. They can use
	148	-Wl,-V.
	149
	150	When the -shared link option is used a final link is not being
	151	done. */
	152
80ffc95e	153	/* If ELF is the default format, we should not use /lib/elf. */
bfe87013	154
345a6161 DM	155	#ifdef SPARC_BI_ARCH
	156
	157	#undef SUBTARGET_EXTRA_SPECS
	158	#define SUBTARGET_EXTRA_SPECS \
	159	{ "link_arch32", LINK_ARCH32_SPEC }, \
	160	{ "link_arch64", LINK_ARCH64_SPEC }, \
	161	{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
	162	{ "link_arch", LINK_ARCH_SPEC },
	163
	164	#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
	165	%{!shared: \
	166	%{!ibcs: \
	167	%{!static: \
	168	%{rdynamic:-export-dynamic} \
	169	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
	170	%{static:-static}}} \
	171	"
	172
	173	#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
	174	%{!shared: \
	175	%{!ibcs: \
	176	%{!static: \
	177	%{rdynamic:-export-dynamic} \
	178	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
	179	%{static:-static}}} \
	180	"
	181
	182	#define LINK_ARCH_SPEC "\
	183	%{m32:%(link_arch32)} \
	184	%{m64:%(link_arch64)} \
	185	%{!m32:%{!m64:%(link_arch_default)}} \
	186	"
	187
	188	#define LINK_ARCH_DEFAULT_SPEC \
	189	(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
	190
bfe87013	191	#undef LINK_SPEC
345a6161 DM	192	#define LINK_SPEC "\
	193	%(link_arch) \
	194	%{mlittle-endian:-EL} \
e95b1e6a	195	%{!mno-relax:%{!r:-relax}} \
345a6161 DM	196	"
	197
	198	#undef CC1_SPEC
	199	#if DEFAULT_ARCH32_P
	200	#define CC1_SPEC "\
	201	%{sun4:} %{target:} \
	202	%{mcypress:-mcpu=cypress} \
	203	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	204	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
d6964c30	205	%{m32:%{m64:%emay not use both -m32 and -m64}} \
4710d3eb	206	%{m64:-mptr64 -mstack-bias -mlong-double-128 \
247cfc5c JJ	207	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
247cfc5c JJ	208	%{!mno-vis:%{!mcpu=v9:-mvis}}} \
345a6161 DM	209	"
	210	#else
	211	#define CC1_SPEC "\
	212	%{sun4:} %{target:} \
	213	%{mcypress:-mcpu=cypress} \
	214	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	215	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
d6964c30	216	%{m32:%{m64:%emay not use both -m32 and -m64}} \
4710d3eb	217	%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
b25c3a22	218	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}}} \
9ce13279	219	%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
247cfc5c	220	%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
345a6161 DM	221	"
	222	#endif
	223
	224	#if DEFAULT_ARCH32_P
	225	#define MULTILIB_DEFAULTS { "m32" }
	226	#else
	227	#define MULTILIB_DEFAULTS { "m64" }
	228	#endif
	229
	230	#else /* !SPARC_BI_ARCH */
	231
	232	#undef LINK_SPEC
e95b1e6a	233	#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
bfe87013 DE	234	%{!shared: \
	235	%{!ibcs: \
	236	%{!static: \
	237	%{rdynamic:-export-dynamic} \
345a6161	238	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
bfe87013 DE	239	%{static:-static}}} \
bfe87013 DE	240	%{mlittle-endian:-EL} \
e95b1e6a	241	%{!mno-relax:%{!r:-relax}} \
bfe87013 DE	242	"
bfe87013 DE	243
345a6161 DM	244	#endif /* !SPARC_BI_ARCH */
345a6161 DM	245
bfe87013	246	/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
80ffc95e	247	It's safe to pass -s always, even if -g is not used. */
bfe87013 DE	248	#undef ASM_SPEC
	249	#define ASM_SPEC "\
	250	%{V} \
	251	%{v:%{!V:-V}} \
	252	%{!Qn:-Qy} \
	253	%{n} \
	254	%{T} \
	255	%{Ym,*} \
	256	%{Wa,:%} \
	257	-s %{fpic:-K PIC} %{fPIC:-K PIC} \
	258	%{mlittle-endian:-EL} \
e95b1e6a	259	%(asm_cpu) %(asm_arch) %(asm_relax)"
bfe87013 DE	260
	261	/* Same as sparc.h */
	262	#undef DBX_REGISTER_NUMBER
	263	#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
	264
	265	/* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
	266	64-bit anything, so we use DWARF2. */
	267
bfe87013	268	#undef DWARF_DEBUGGING_INFO
23532de9 JT	269	#define DWARF2_DEBUGGING_INFO 1
23532de9 JT	270	#define DBX_DEBUGGING_INFO 1
bfe87013	271
bfe87013 DE	272	#undef ASM_OUTPUT_ALIGNED_LOCAL
	273	#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
	274	do { \
	275	fputs ("\t.local\t", (FILE)); \
	276	assemble_name ((FILE), (NAME)); \
	277	putc ('\n', (FILE)); \
	278	ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
	279	} while (0)
	280
	281	#undef COMMON_ASM_OP
471b6f1b	282	#define COMMON_ASM_OP "\t.common\t"
bfe87013	283
59f96879 RH	284	#undef LOCAL_LABEL_PREFIX
	285	#define LOCAL_LABEL_PREFIX "."
	286
bfe87013 DE	287	/* This is how to output a reference to an internal numbered label where
	288	PREFIX is the class of label and NUM is the number within the class. */
	289
	290	#undef ASM_OUTPUT_INTERNAL_LABELREF
	291	#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
	292	fprintf (FILE, ".L%s%d", PREFIX, NUM)
	293
	294	/* This is how to store into the string LABEL
	295	the symbol_ref name of an internal numbered label where
	296	PREFIX is the class of label and NUM is the number within the class.
	297	This is suitable for output with `assemble_name'. */
	298
	299	#undef ASM_GENERATE_INTERNAL_LABEL
	300	#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
e59f7d3d	301	sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
bfe87013	302
bfe87013 DE	303	/* DWARF bits. */
	304
	305	/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
d6a7951f	306	Obviously the Dwarf2 folks haven't tried to actually build systems
bfe87013 DE	307	with their spec. On a 64-bit system, only 64-bit relocs become
	308	RELATIVE relocations. */
	309
	310	/* #define DWARF_OFFSET_SIZE PTR_SIZE */
275b60d6 JJ	311
	312	#if defined(HAVE_LD_EH_FRAME_HDR)
	313	#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
	314	#endif
f7e0e539	315	\f
b5de1a27 DM	316	/* Don't be different from other Linux platforms in this regard. */
b5de1a27 DM	317	#define HANDLE_PRAGMA_PACK_PUSH_POP
7a31a340 DM	318
	319	/* We use GNU ld so undefine this so that attribute((init_priority)) works. */
	320	#undef CTORS_SECTION_ASM_OP
	321	#undef DTORS_SECTION_ASM_OP
db430d26 DM	322
	323	/* Do code reading to identify a signal frame, and set the frame
	324	state data appropriately. See unwind-dw2.c for the structs. */
	325
db430d26 DM	326	/* Handle multilib correctly. */
db430d26 DM	327	#if defined(__arch64__)
56149abc	328	/* 64-bit SPARC version */
db430d26 DM	329	#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
	330	do { \
	331	unsigned int *pc_ = (CONTEXT)->ra; \
	332	long new_cfa_, i_; \
	333	long regs_off_, fpu_save_off_; \
	334	long this_cfa_, fpu_save_; \
	335	\
	336	if (pc_[0] != 0x82102065 /* mov NR_rt_sigreturn, %g1 */ \
	337	\|\| pc_[1] != 0x91d0206d) /* ta 0x6d */ \
	338	break; \
	339	regs_off_ = 192 + 128; \
	340	fpu_save_off_ = regs_off_ + (16 * 8) + (3 * 8) + (2 * 4); \
	341	this_cfa_ = (long) (CONTEXT)->cfa; \
	342	new_cfa_ = (long )(((CONTEXT)->cfa) + (regs_off_ + (14 * 8))); \
3ef3f384	343	new_cfa_ += 2047; /* Stack bias */ \
db430d26 DM	344	fpu_save_ = (long )((this_cfa_) + (fpu_save_off_)); \
	345	(FS)->cfa_how = CFA_REG_OFFSET; \
	346	(FS)->cfa_reg = 14; \
	347	(FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
	348	for (i_ = 1; i_ < 16; ++i_) \
	349	{ \
db430d26 DM	350	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
	351	(FS)->regs.reg[i_].loc.offset = \
	352	this_cfa_ + (regs_off_ + (i_ * 8)) - new_cfa_; \
	353	} \
	354	for (i_ = 0; i_ < 16; ++i_) \
	355	{ \
	356	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
	357	(FS)->regs.reg[i_ + 16].loc.offset = \
	358	this_cfa_ + (i_ * 8) - new_cfa_; \
	359	} \
	360	if (fpu_save_) \
	361	{ \
	362	for (i_ = 0; i_ < 64; ++i_) \
	363	{ \
	364	if (i_ > 32 && (i_ & 0x1)) \
	365	continue; \
	366	(FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
	367	(FS)->regs.reg[i_ + 32].loc.offset = \
	368	(fpu_save_ + (i_ * 4)) - new_cfa_; \
	369	} \
	370	} \
	371	/* Stick return address into %g0, same trick Alpha uses. */ \
	372	(FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
	373	(FS)->regs.reg[0].loc.offset = \
	374	this_cfa_ + (regs_off_ + (16 * 8) + 8) - new_cfa_; \
	375	(FS)->retaddr_column = 0; \
	376	goto SUCCESS; \
	377	} while (0)
	378	#else
56149abc	379	/* 32-bit SPARC version */
db430d26 DM	380	#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
	381	do { \
	382	unsigned int *pc_ = (CONTEXT)->ra; \
	383	int new_cfa_, i_, oldstyle_; \
	384	int regs_off_, fpu_save_off_; \
	385	int fpu_save_, this_cfa_; \
	386	\
	387	if (pc_[1] != 0x91d02010) /* ta 0x10 */ \
	388	break; \
	389	if (pc_[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ \
	390	oldstyle_ = 1; \
	391	else if (pc_[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ \
	392	oldstyle_ = 0; \
	393	else \
	394	break; \
	395	if (oldstyle_) \
	396	{ \
	397	regs_off_ = 96; \
	398	fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4); \
	399	} \
	400	else \
	401	{ \
	402	regs_off_ = 96 + 128; \
	403	fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4); \
	404	} \
	405	this_cfa_ = (int) (CONTEXT)->cfa; \
	406	new_cfa_ = (int )(((CONTEXT)->cfa) + (regs_off_+(44)+(14 4))); \
	407	fpu_save_ = (int )((this_cfa_) + (fpu_save_off_)); \
	408	(FS)->cfa_how = CFA_REG_OFFSET; \
	409	(FS)->cfa_reg = 14; \
	410	(FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa; \
	411	for (i_ = 1; i_ < 16; ++i_) \
	412	{ \
	413	if (i_ == 14) \
	414	continue; \
	415	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
	416	(FS)->regs.reg[i_].loc.offset = \
	417	this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_; \
	418	} \
	419	for (i_ = 0; i_ < 16; ++i_) \
	420	{ \
	421	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
	422	(FS)->regs.reg[i_ + 16].loc.offset = \
	423	this_cfa_ + (i_ * 4) - new_cfa_; \
	424	} \
	425	if (fpu_save_) \
	426	{ \
	427	for (i_ = 0; i_ < 32; ++i_) \
	428	{ \
	429	(FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
	430	(FS)->regs.reg[i_ + 32].loc.offset = \
	431	(fpu_save_ + (i_ * 4)) - new_cfa_; \
	432	} \
	433	} \
	434	/* Stick return address into %g0, same trick Alpha uses. */ \
	435	(FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
	436	(FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_; \
	437	(FS)->retaddr_column = 0; \
	438	goto SUCCESS; \
	439	} while (0)
	440	#endif