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/* Definitions for 64-bit SPARC running Linux-based GNU systems with ELF.

   Copyright 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008,

   2009, 2010, 2011 Free Software Foundation, Inc.

   Contributed by David S. Miller (davem@caip.rutgers.edu)

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

GCC is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#define TARGET_OS_CPP_BUILTINS()                \

  do                                            \

    {                                           \

      GNU_USER_TARGET_OS_CPP_BUILTINS();        \

      if (TARGET_ARCH64)                        \

        builtin_define ("_LONGLONG");           \

      if (TARGET_ARCH32                         \

          && TARGET_LONG_DOUBLE_128)            \

        builtin_define ("__LONG_DOUBLE_128__"); \

    }                                           \

  while (0)

/* On Linux, the combination sparc64-* --with-cpu=v8 is supported and

   selects a 32-bit compiler.  */

#if defined(TARGET_64BIT_DEFAULT) && TARGET_CPU_DEFAULT >= TARGET_CPU_v9

#undef TARGET_DEFAULT

#define TARGET_DEFAULT \

  (MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_STACK_BIAS + \

   MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)

#endif

/* This must be v9a not just v9 because by default we enable

   -mvis.  */

#undef ASM_CPU64_DEFAULT_SPEC

#define ASM_CPU64_DEFAULT_SPEC "-Av9a"

/* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on

   the GNU/Linux magical crtend.o file (see crtstuff.c) which

   provides part of the support for getting C++ file-scope static

   object constructed before entering `main', followed by a normal

   GNU/Linux "finalizer" file, `crtn.o'.  */

#undef  ENDFILE_SPEC

#define ENDFILE_SPEC \

  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\

   %{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"

/* The default code model.  */

#undef SPARC_DEFAULT_CMODEL

#define SPARC_DEFAULT_CMODEL CM_MEDLOW

#undef WCHAR_TYPE

#define WCHAR_TYPE "int"

#undef WCHAR_TYPE_SIZE

#define WCHAR_TYPE_SIZE 32

/* Define for support of TFmode long double.

   SPARC ABI says that long double is 4 words.  */

#undef LONG_DOUBLE_TYPE_SIZE

#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)

/* Define this to set long double type size to use in libgcc2.c, which can

   not depend on target_flags.  */

#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)

#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128

#else

#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64

#endif

#undef CPP_SUBTARGET_SPEC

#define CPP_SUBTARGET_SPEC "\

%{posix:-D_POSIX_SOURCE} \

%{pthread:-D_REENTRANT} \

"

/* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support

   for the special GCC options -static and -shared, which allow us to

   link things in one of these three modes by applying the appropriate

   combinations of options at link-time.

   When the -shared link option is used a final link is not being

   done.  */

#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"

#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"

#ifdef SPARC_BI_ARCH

#undef SUBTARGET_EXTRA_SPECS

#define SUBTARGET_EXTRA_SPECS \

  { "link_arch32",       LINK_ARCH32_SPEC },              \

  { "link_arch64",       LINK_ARCH64_SPEC },              \

  { "link_arch_default", LINK_ARCH_DEFAULT_SPEC },        \

  { "link_arch",         LINK_ARCH_SPEC },

#define LINK_ARCH32_SPEC "-m elf32_sparc -Y P,%R/usr/lib %{shared:-shared} \

  %{!shared: \

    %{!static: \

      %{rdynamic:-export-dynamic} \

      -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \

      %{static:-static}} \

"

#define LINK_ARCH64_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \

  %{!shared: \

    %{!static: \

      %{rdynamic:-export-dynamic} \

      -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \

      %{static:-static}} \

"

#define LINK_ARCH_SPEC "\

%{m32:%(link_arch32)} \

%{m64:%(link_arch64)} \

%{!m32:%{!m64:%(link_arch_default)}} \

"

#define LINK_ARCH_DEFAULT_SPEC \

(DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)

#undef  LINK_SPEC

#define LINK_SPEC "\

%(link_arch) \

%{!mno-relax:%{!r:-relax}} \

"

/* -mcpu=native handling only makes sense with compiler running on

   a SPARC chip.  */

#if defined(__sparc__) && defined(__linux__)

extern const char *host_detect_local_cpu (int argc, const char **argv);

# define EXTRA_SPEC_FUNCTIONS                                           \

  { "local_cpu_detect", host_detect_local_cpu },

# define MCPU_MTUNE_NATIVE_SPECS                                        \

   " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}"              \

   " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"

#else

# define MCPU_MTUNE_NATIVE_SPECS ""

#endif

#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS

#undef  CC1_SPEC

#if DEFAULT_ARCH32_P

#define CC1_SPEC "%{profile:-p} \

%{m32:%{m64:%emay not use both -m32 and -m64}} \

%{m64:-mptr64 -mstack-bias -mlong-double-128 \

  %{!mcpu*:-mcpu=ultrasparc} \

  %{!mno-vis:%{!mcpu=v9:-mvis}}} \

"

#else

#define CC1_SPEC "%{profile:-p} \

%{m32:%{m64:%emay not use both -m32 and -m64}} \

%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \

  %{!mcpu*:-mcpu=cypress}} \

%{mv8plus:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \

  %{!mcpu*:-mcpu=v9}} \

%{!m32:%{!mcpu*:-mcpu=ultrasparc}} \

%{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}} \

"

#endif

/* Support for a compile-time default CPU, et cetera.  The rules are:

   --with-cpu is ignored if -mcpu is specified.

   --with-tune is ignored if -mtune is specified.

   --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu

     are specified.

   In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)}

   here, otherwise say -mcpu=v7 would be passed even when -m64.

   CC1_SPEC above takes care of this instead.  */

#undef OPTION_DEFAULT_SPECS

#if DEFAULT_ARCH32_P

#define OPTION_DEFAULT_SPECS \

  {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \

  {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \

  {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }

#else

#define OPTION_DEFAULT_SPECS \

  {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \

  {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \

  {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }

#endif

#if DEFAULT_ARCH32_P

#define MULTILIB_DEFAULTS { "m32" }

#else

#define MULTILIB_DEFAULTS { "m64" }

#endif

#else /* !SPARC_BI_ARCH */

#undef LINK_SPEC

#define LINK_SPEC "-m elf64_sparc -Y P,%R/usr/lib64 %{shared:-shared} \

  %{!shared: \

    %{!static: \

      %{rdynamic:-export-dynamic} \

      -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \

    %{static:-static}} \

%{!mno-relax:%{!r:-relax}} \

"

#endif /* !SPARC_BI_ARCH */

/* It's safe to pass -s always, even if -g is not used.  */

#undef ASM_SPEC

#define ASM_SPEC "\

-s \

%{fpic|fPIC|fpie|fPIE:-K PIC} \

%{!.c:%{findirect-dispatch:-K PIC}} \

%(asm_cpu) %(asm_arch) %(asm_relax)"

#undef ASM_OUTPUT_ALIGNED_LOCAL

#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \

do {                                                                    \

  fputs ("\t.local\t", (FILE));         \

  assemble_name ((FILE), (NAME));                                       \

  putc ('\n', (FILE));                                                  \

  ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN);                  \

} while (0)

#undef COMMON_ASM_OP

#define COMMON_ASM_OP "\t.common\t"

#undef  LOCAL_LABEL_PREFIX

#define LOCAL_LABEL_PREFIX  "."

/* DWARF bits.  */

/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets.

   Obviously the Dwarf2 folks haven't tried to actually build systems

   with their spec.  On a 64-bit system, only 64-bit relocs become

   RELATIVE relocations.  */

/* #define DWARF_OFFSET_SIZE PTR_SIZE */

#undef DITF_CONVERSION_LIBFUNCS

#define DITF_CONVERSION_LIBFUNCS 1

#ifdef HAVE_AS_TLS

#undef TARGET_SUN_TLS

#undef TARGET_GNU_TLS

#define TARGET_SUN_TLS 0

#define TARGET_GNU_TLS 1

#endif

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

#undef CTORS_SECTION_ASM_OP

#undef DTORS_SECTION_ASM_OP

/* Static stack checking is supported by means of probes.  */

#define STACK_CHECK_STATIC_BUILTIN 1

/* Linux currently uses RMO in uniprocessor mode, which is equivalent to

   TMO, and TMO in multiprocessor mode.  But they reserve the right to

   change their minds.  */

#undef SPARC_RELAXED_ORDERING

#define SPARC_RELAXED_ORDERING true

#undef NEED_INDICATE_EXEC_STACK

#define NEED_INDICATE_EXEC_STACK 1

#ifdef TARGET_LIBC_PROVIDES_SSP

/* sparc glibc provides __stack_chk_guard in [%g7 + 0x14],

   sparc64 glibc provides it at [%g7 + 0x28].  */

#define TARGET_THREAD_SSP_OFFSET        (TARGET_ARCH64 ? 0x28 : 0x14)

#endif

/* Define if long doubles should be mangled as 'g'.  */

#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING

/* We use glibc _mcount for profiling.  */

#undef NO_PROFILE_COUNTERS

#define NO_PROFILE_COUNTERS     1