gcc/config/sparc/freebsd.h

/* Definitions for Sun Sparc64 running FreeBSD using the ELF format
   Copyright (C) 2001 Free Software Foundation, Inc.
   Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.

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, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* FreeBSD needs's the platform name (sparc64) defined.  */

#undef  CPP_CPU64_DEFAULT_SPEC
#define CPP_CPU64_DEFAULT_SPEC "-D__sparc64__ -D__sparc_v9__"

#undef  CPP_PREDEFINES
#define CPP_PREDEFINES FBSD_CPP_PREDEFINES

#define LINK_SPEC "-m elf64_sparc %(link_arch)				\
  %{!mno-relax:%{!r:-relax}						\
  %{p:%e`-p' not supported; use `-pg' and gprof(1)}			\
  %{Wl,*:%*}								\
  %{assert*} %{R*} %{rpath*} %{defsym*}					\
  %{shared:-Bshareable %{h*} %{soname*}}				\
  %{symbolic:-Bsymbolic}						\
  %{!shared:								\
    %{!static:								\
      %{rdynamic:-export-dynamic}					\
      %{!dynamic-linker:-dynamic-linker /usr/libexec/ld-elf.so.1}}	\
    %{static:-Bstatic}}"


/************************[  Target stuff  ]***********************************/

/* Define the actual types of some ANSI-mandated types.  
   Needs to agree with <machine/ansi.h>.  GCC defaults come from c-decl.c,
   c-common.c, and config/<arch>/<arch>.h.  */

/* Earlier headers may get this wrong for FreeBSD.
   We use the GCC defaults instead.  */
#undef WCHAR_TYPE

#undef  WCHAR_UNSIGNED
#define WCHAR_UNSIGNED 0

#undef  WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32

/* 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

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

#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  TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (FreeBSD/sparc64 ELF)");

#define TARGET_ELF		1

/* XXX */
/* A 64 bit v9 compiler with stack-bias,
   in a Medium/mid code model environment.  */

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

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


/************************[  Assembler stuff  ]********************************/

/* XXX */
#if 0
#undef  ASM_CPU_DEFAULT_SPEC
#define ASM_CPU_DEFAULT_SPEC "-Av9a"
#endif

/* XXX2 */
/* 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)

/* XXX2 */
/* 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)

/* XXX2 */
/* 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)


/************************[  Debugger stuff  ]*********************************/

/* This is the char to use for continuation (in case we need to turn
   continuation back on).  */

#undef  DBX_CONTIN_CHAR
#define DBX_CONTIN_CHAR	'?'

/* 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 */