[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

#ifdef HAVE_LD_PIE
#define STARTFILE_SPEC \
  "%{!shared:%{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbeginS.o%s}"
#else
#define STARTFILE_SPEC \
  "%{!shared:%{pg|p:gcrt1.o%s;:crt1.o%s}}\
   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbeginS.o%s}"
#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_SPEC \
  "%{shared|pie:crtendS.o%s;:crtend.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|fpic|fPIE|fpie:-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|fPIC|fpie|fPIE:-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

#define ASM_FILE_END(FILE) \
  do {									\
    named_section_flags (".note.GNU-stack",				\
			 SECTION_DEBUG					\
			 | (trampolines_created ? SECTION_CODE : 0));	\
  } while (0)

/* 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
24a4dd31	69	#ifdef HAVE_LD_PIE
5bbcd587	70	#define STARTFILE_SPEC \
24a4dd31 JJ	71	"%{!shared:%{pg\|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
	72	crti.o%s %{static:crtbeginT.o%s;shared\|pie:crtbeginS.o%s;:crtbeginS.o%s}"
	73	#else
	74	#define STARTFILE_SPEC \
	75	"%{!shared:%{pg\|p:gcrt1.o%s;:crt1.o%s}}\
	76	crti.o%s %{static:crtbeginT.o%s;shared\|pie:crtbeginS.o%s;:crtbeginS.o%s}"
	77	#endif
bfe87013	78
956d6950 JL	79	/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
956d6950 JL	80	the GNU/Linux magical crtend.o file (see crtstuff.c) which
bfe87013 DE	81	provides part of the support for getting C++ file-scope static
bfe87013 DE	82	object constructed before entering `main', followed by a normal
956d6950	83	GNU/Linux "finalizer" file, `crtn.o'. */
bfe87013 DE	84
bfe87013 DE	85	#undef ENDFILE_SPEC
345a6161	86
5bbcd587	87	#define ENDFILE_SPEC \
24a4dd31	88	"%{shared\|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
5bbcd587	89	%{ffast-math\|funsafe-math-optimizations:crtfastmath.o%s}"
345a6161	90
2be1602e DM	91	/* The GNU C++ standard library requires that these macros be defined. */
	92	#undef CPLUSPLUS_CPP_SPEC
	93	#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
	94
345a6161 DM	95	#undef TARGET_VERSION
345a6161 DM	96	#define TARGET_VERSION fprintf (stderr, " (sparc64 GNU/Linux with ELF)");
a0a301fc DE	97
	98	/* The default code model. */
	99	#undef SPARC_DEFAULT_CMODEL
be3f1ff5	100	#define SPARC_DEFAULT_CMODEL CM_MEDLOW
bfe87013	101
4710d3eb	102	#undef SUBTARGET_SWITCHES
047142d3 PT	103	#define SUBTARGET_SWITCHES \
	104	{"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
	105	{"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
4710d3eb	106
bfe87013	107	#undef WCHAR_TYPE
247cfc5c JJ	108	#define WCHAR_TYPE "int"
247cfc5c JJ	109
bfe87013	110	#undef WCHAR_TYPE_SIZE
247cfc5c JJ	111	#define WCHAR_TYPE_SIZE 32
247cfc5c JJ	112
ba31d94e	113	/* Define for support of TFmode long double.
56149abc	114	SPARC ABI says that long double is 4 words. */
a0a301fc	115	#undef LONG_DOUBLE_TYPE_SIZE
4710d3eb JJ	116	#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
	117
	118	/* Constant which presents upper bound of the above value. */
	119	#undef MAX_LONG_DOUBLE_TYPE_SIZE
	120	#define MAX_LONG_DOUBLE_TYPE_SIZE 128
	121
	122	/* Define this to set long double type size to use in libgcc2.c, which can
	123	not depend on target_flags. */
	124	#if defined(__arch64__) \|\| defined(__LONG_DOUBLE_128__)
	125	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
	126	#else
	127	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
	128	#endif
345a6161	129
a0a301fc DE	130	#undef CPP_SUBTARGET_SPEC
a0a301fc DE	131	#define CPP_SUBTARGET_SPEC "\
24a4dd31	132	%{fPIC\|fpic\|fPIE\|fpie:-D__PIC__ -D__pic__} \
bfe87013	133	%{posix:-D_POSIX_SOURCE} \
afc96791	134	%{pthread:-D_REENTRANT} \
bfe87013	135	"
afc96791	136
bfe87013 DE	137	#undef LIB_SPEC
bfe87013 DE	138	#define LIB_SPEC \
17772b2a JJ	139	"%{pthread:-lpthread} \
	140	%{shared:-lc} \
	141	%{!shared: %{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
bfe87013	142
956d6950	143	/* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support
bfe87013 DE	144	for the special GCC options -static and -shared, which allow us to
	145	link things in one of these three modes by applying the appropriate
	146	combinations of options at link-time. We like to support here for
	147	as many of the other GNU linker options as possible. But I don't
	148	have the time to search for those flags. I am sure how to add
	149	support for -soname shared_object_name. H.J.
	150
	151	I took out %{v:%{!V:-V}}. It is too much :-(. They can use
	152	-Wl,-V.
	153
	154	When the -shared link option is used a final link is not being
	155	done. */
	156
80ffc95e	157	/* If ELF is the default format, we should not use /lib/elf. */
bfe87013	158
345a6161 DM	159	#ifdef SPARC_BI_ARCH
	160
	161	#undef SUBTARGET_EXTRA_SPECS
	162	#define SUBTARGET_EXTRA_SPECS \
	163	{ "link_arch32", LINK_ARCH32_SPEC }, \
	164	{ "link_arch64", LINK_ARCH64_SPEC }, \
	165	{ "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
	166	{ "link_arch", LINK_ARCH_SPEC },
	167
	168	#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
	169	%{!shared: \
	170	%{!ibcs: \
	171	%{!static: \
	172	%{rdynamic:-export-dynamic} \
	173	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
	174	%{static:-static}}} \
	175	"
	176
	177	#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
	178	%{!shared: \
	179	%{!ibcs: \
	180	%{!static: \
	181	%{rdynamic:-export-dynamic} \
	182	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
	183	%{static:-static}}} \
	184	"
	185
	186	#define LINK_ARCH_SPEC "\
	187	%{m32:%(link_arch32)} \
	188	%{m64:%(link_arch64)} \
	189	%{!m32:%{!m64:%(link_arch_default)}} \
	190	"
	191
	192	#define LINK_ARCH_DEFAULT_SPEC \
	193	(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
	194
bfe87013	195	#undef LINK_SPEC
345a6161 DM	196	#define LINK_SPEC "\
	197	%(link_arch) \
	198	%{mlittle-endian:-EL} \
e95b1e6a	199	%{!mno-relax:%{!r:-relax}} \
345a6161 DM	200	"
	201
	202	#undef CC1_SPEC
	203	#if DEFAULT_ARCH32_P
	204	#define CC1_SPEC "\
	205	%{sun4:} %{target:} \
	206	%{mcypress:-mcpu=cypress} \
	207	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	208	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
d6964c30	209	%{m32:%{m64:%emay not use both -m32 and -m64}} \
4710d3eb	210	%{m64:-mptr64 -mstack-bias -mlong-double-128 \
247cfc5c JJ	211	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=ultrasparc}}}}}}} \
247cfc5c JJ	212	%{!mno-vis:%{!mcpu=v9:-mvis}}} \
345a6161 DM	213	"
	214	#else
	215	#define CC1_SPEC "\
	216	%{sun4:} %{target:} \
	217	%{mcypress:-mcpu=cypress} \
	218	%{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
	219	%{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
d6964c30	220	%{m32:%{m64:%emay not use both -m32 and -m64}} \
4710d3eb	221	%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
b25c3a22	222	%{!mcpu*:%{!mcypress:%{!msparclite:%{!mf930:%{!mf934:%{!mv8:%{!msupersparc:-mcpu=cypress}}}}}}}} \
9ce13279	223	%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
247cfc5c	224	%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \
345a6161 DM	225	"
	226	#endif
	227
	228	#if DEFAULT_ARCH32_P
	229	#define MULTILIB_DEFAULTS { "m32" }
	230	#else
	231	#define MULTILIB_DEFAULTS { "m64" }
	232	#endif
	233
	234	#else /* !SPARC_BI_ARCH */
	235
	236	#undef LINK_SPEC
e95b1e6a	237	#define LINK_SPEC "-m elf64_sparc -Y P,/usr/lib64 %{shared:-shared} \
bfe87013 DE	238	%{!shared: \
	239	%{!ibcs: \
	240	%{!static: \
	241	%{rdynamic:-export-dynamic} \
345a6161	242	%{!dynamic-linker:-dynamic-linker /lib64/ld-linux.so.2}} \
bfe87013 DE	243	%{static:-static}}} \
bfe87013 DE	244	%{mlittle-endian:-EL} \
e95b1e6a	245	%{!mno-relax:%{!r:-relax}} \
bfe87013 DE	246	"
bfe87013 DE	247
345a6161 DM	248	#endif /* !SPARC_BI_ARCH */
345a6161 DM	249
bfe87013	250	/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
80ffc95e	251	It's safe to pass -s always, even if -g is not used. */
bfe87013 DE	252	#undef ASM_SPEC
	253	#define ASM_SPEC "\
	254	%{V} \
	255	%{v:%{!V:-V}} \
	256	%{!Qn:-Qy} \
	257	%{n} \
	258	%{T} \
	259	%{Ym,*} \
	260	%{Wa,:%} \
24a4dd31	261	-s %{fpic\|fPIC\|fpie\|fPIE:-K PIC} \
bfe87013	262	%{mlittle-endian:-EL} \
e95b1e6a	263	%(asm_cpu) %(asm_arch) %(asm_relax)"
bfe87013 DE	264
	265	/* Same as sparc.h */
	266	#undef DBX_REGISTER_NUMBER
	267	#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
	268
	269	/* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
	270	64-bit anything, so we use DWARF2. */
	271
bfe87013	272	#undef DWARF_DEBUGGING_INFO
23532de9 JT	273	#define DWARF2_DEBUGGING_INFO 1
23532de9 JT	274	#define DBX_DEBUGGING_INFO 1
bfe87013	275
bfe87013 DE	276	#undef ASM_OUTPUT_ALIGNED_LOCAL
	277	#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
	278	do { \
	279	fputs ("\t.local\t", (FILE)); \
	280	assemble_name ((FILE), (NAME)); \
	281	putc ('\n', (FILE)); \
	282	ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
	283	} while (0)
	284
	285	#undef COMMON_ASM_OP
471b6f1b	286	#define COMMON_ASM_OP "\t.common\t"
bfe87013	287
59f96879 RH	288	#undef LOCAL_LABEL_PREFIX
	289	#define LOCAL_LABEL_PREFIX "."
	290
bfe87013 DE	291	/* This is how to output a reference to an internal numbered label where
	292	PREFIX is the class of label and NUM is the number within the class. */
	293
	294	#undef ASM_OUTPUT_INTERNAL_LABELREF
	295	#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \
	296	fprintf (FILE, ".L%s%d", PREFIX, NUM)
	297
	298	/* This is how to store into the string LABEL
	299	the symbol_ref name of an internal numbered label where
	300	PREFIX is the class of label and NUM is the number within the class.
	301	This is suitable for output with `assemble_name'. */
	302
	303	#undef ASM_GENERATE_INTERNAL_LABEL
	304	#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
e59f7d3d	305	sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
bfe87013	306
bfe87013 DE	307	/* DWARF bits. */
	308
	309	/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.
d6a7951f	310	Obviously the Dwarf2 folks haven't tried to actually build systems
bfe87013 DE	311	with their spec. On a 64-bit system, only 64-bit relocs become
	312	RELATIVE relocations. */
	313
	314	/* #define DWARF_OFFSET_SIZE PTR_SIZE */
275b60d6 JJ	315
	316	#if defined(HAVE_LD_EH_FRAME_HDR)
	317	#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
	318	#endif
f7e0e539	319	\f
b5de1a27 DM	320	/* Don't be different from other Linux platforms in this regard. */
b5de1a27 DM	321	#define HANDLE_PRAGMA_PACK_PUSH_POP
7a31a340 DM	322
	323	/* We use GNU ld so undefine this so that attribute((init_priority)) works. */
	324	#undef CTORS_SECTION_ASM_OP
	325	#undef DTORS_SECTION_ASM_OP
db430d26	326
3edc56a9 JJ	327	#define ASM_FILE_END(FILE) \
	328	do { \
	329	named_section_flags (".note.GNU-stack", \
	330	SECTION_DEBUG \
	331	\| (trampolines_created ? SECTION_CODE : 0)); \
	332	} while (0)
	333
db430d26 DM	334	/* Do code reading to identify a signal frame, and set the frame
	335	state data appropriately. See unwind-dw2.c for the structs. */
	336
db430d26 DM	337	/* Handle multilib correctly. */
db430d26 DM	338	#if defined(__arch64__)
56149abc	339	/* 64-bit SPARC version */
db430d26 DM	340	#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
	341	do { \
	342	unsigned int *pc_ = (CONTEXT)->ra; \
	343	long new_cfa_, i_; \
	344	long regs_off_, fpu_save_off_; \
	345	long this_cfa_, fpu_save_; \
	346	\
	347	if (pc_[0] != 0x82102065 /* mov NR_rt_sigreturn, %g1 */ \
	348	\|\| pc_[1] != 0x91d0206d) /* ta 0x6d */ \
	349	break; \
	350	regs_off_ = 192 + 128; \
	351	fpu_save_off_ = regs_off_ + (16 * 8) + (3 * 8) + (2 * 4); \
	352	this_cfa_ = (long) (CONTEXT)->cfa; \
	353	new_cfa_ = (long )(((CONTEXT)->cfa) + (regs_off_ + (14 * 8))); \
3ef3f384	354	new_cfa_ += 2047; /* Stack bias */ \
db430d26 DM	355	fpu_save_ = (long )((this_cfa_) + (fpu_save_off_)); \
	356	(FS)->cfa_how = CFA_REG_OFFSET; \
	357	(FS)->cfa_reg = 14; \
	358	(FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
	359	for (i_ = 1; i_ < 16; ++i_) \
	360	{ \
db430d26 DM	361	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
	362	(FS)->regs.reg[i_].loc.offset = \
	363	this_cfa_ + (regs_off_ + (i_ * 8)) - new_cfa_; \
	364	} \
	365	for (i_ = 0; i_ < 16; ++i_) \
	366	{ \
	367	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
	368	(FS)->regs.reg[i_ + 16].loc.offset = \
	369	this_cfa_ + (i_ * 8) - new_cfa_; \
	370	} \
	371	if (fpu_save_) \
	372	{ \
	373	for (i_ = 0; i_ < 64; ++i_) \
	374	{ \
	375	if (i_ > 32 && (i_ & 0x1)) \
	376	continue; \
	377	(FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
	378	(FS)->regs.reg[i_ + 32].loc.offset = \
	379	(fpu_save_ + (i_ * 4)) - new_cfa_; \
	380	} \
	381	} \
	382	/* Stick return address into %g0, same trick Alpha uses. */ \
	383	(FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
	384	(FS)->regs.reg[0].loc.offset = \
	385	this_cfa_ + (regs_off_ + (16 * 8) + 8) - new_cfa_; \
	386	(FS)->retaddr_column = 0; \
	387	goto SUCCESS; \
	388	} while (0)
	389	#else
56149abc	390	/* 32-bit SPARC version */
db430d26 DM	391	#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
	392	do { \
	393	unsigned int *pc_ = (CONTEXT)->ra; \
	394	int new_cfa_, i_, oldstyle_; \
	395	int regs_off_, fpu_save_off_; \
	396	int fpu_save_, this_cfa_; \
	397	\
	398	if (pc_[1] != 0x91d02010) /* ta 0x10 */ \
	399	break; \
	400	if (pc_[0] == 0x821020d8) /* mov NR_sigreturn, %g1 */ \
	401	oldstyle_ = 1; \
	402	else if (pc_[0] == 0x82102065) /* mov NR_rt_sigreturn, %g1 */ \
	403	oldstyle_ = 0; \
	404	else \
	405	break; \
	406	if (oldstyle_) \
	407	{ \
	408	regs_off_ = 96; \
	409	fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4); \
	410	} \
	411	else \
	412	{ \
	413	regs_off_ = 96 + 128; \
	414	fpu_save_off_ = regs_off_ + (4 * 4) + (16 * 4) + (2 * 4); \
	415	} \
	416	this_cfa_ = (int) (CONTEXT)->cfa; \
	417	new_cfa_ = (int )(((CONTEXT)->cfa) + (regs_off_+(44)+(14 4))); \
	418	fpu_save_ = (int )((this_cfa_) + (fpu_save_off_)); \
	419	(FS)->cfa_how = CFA_REG_OFFSET; \
	420	(FS)->cfa_reg = 14; \
	421	(FS)->cfa_offset = new_cfa_ - (int) (CONTEXT)->cfa; \
	422	for (i_ = 1; i_ < 16; ++i_) \
	423	{ \
	424	if (i_ == 14) \
	425	continue; \
	426	(FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
	427	(FS)->regs.reg[i_].loc.offset = \
	428	this_cfa_ + (regs_off_+(4 * 4)+(i_ * 4)) - new_cfa_; \
	429	} \
	430	for (i_ = 0; i_ < 16; ++i_) \
	431	{ \
	432	(FS)->regs.reg[i_ + 16].how = REG_SAVED_OFFSET; \
	433	(FS)->regs.reg[i_ + 16].loc.offset = \
	434	this_cfa_ + (i_ * 4) - new_cfa_; \
	435	} \
	436	if (fpu_save_) \
	437	{ \
	438	for (i_ = 0; i_ < 32; ++i_) \
	439	{ \
	440	(FS)->regs.reg[i_ + 32].how = REG_SAVED_OFFSET; \
	441	(FS)->regs.reg[i_ + 32].loc.offset = \
	442	(fpu_save_ + (i_ * 4)) - new_cfa_; \
	443	} \
	444	} \
	445	/* Stick return address into %g0, same trick Alpha uses. */ \
	446	(FS)->regs.reg[0].how = REG_SAVED_OFFSET; \
	447	(FS)->regs.reg[0].loc.offset = this_cfa_+(regs_off_+4)-new_cfa_; \
	448	(FS)->retaddr_column = 0; \
	449	goto SUCCESS; \
	450	} while (0)
	451	#endif