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/* Override definitions in elfos.h/svr4.h to be correct for IA64.
 
Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005,
2007 Free Software Foundation, Inc.
 
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.
 
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
 
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */
 
#undef TARGET_INIT_LIBFUNCS
#define TARGET_INIT_LIBFUNCS ia64_sysv4_init_libfuncs
 
/* We want DWARF2 as specified by the IA64 ABI.  */
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 
/* Stabs does not work properly for 64-bit targets.  */
#undef DBX_DEBUGGING_INFO
 
/* Various pseudo-ops for which the Intel assembler uses non-standard
   definitions.  */
 
#undef STRING_ASM_OP
#define STRING_ASM_OP "\tstringz\t"
 
#undef SKIP_ASM_OP
#define SKIP_ASM_OP "\t.skip\t"
 
#undef COMMON_ASM_OP
#define COMMON_ASM_OP "\t.common\t"
 
#undef ASCII_DATA_ASM_OP
#define ASCII_DATA_ASM_OP "\tstring\t"
 
/* ia64-specific options for gas
   ??? ia64 gas doesn't accept standard svr4 assembler options?  */
#undef ASM_SPEC
#define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} %(asm_extra)"
 
/* ??? Unfortunately, .lcomm doesn't work, because it puts things in either
   .bss or .sbss, and we can't control the decision of which is used.  When
   I use .lcomm, I get a cryptic "Section group has no member" error from
   the Intel simulator.  So we must explicitly put variables in .bss
   instead.  This matters only if we care about the Intel assembler.  */
 
/* This is asm_output_aligned_bss from varasm.c without the
   (*targetm.asm_out.globalize_label) call at the beginning.  */
 
/* This is for final.c, because it is used by ASM_DECLARE_OBJECT_NAME.  */
extern int size_directive_output;
 
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
do {									\
  if ((DECL) && sdata_symbolic_operand (XEXP (DECL_RTL (DECL), 0), Pmode)) \
    switch_to_section (sbss_section);					\
  else									\
    switch_to_section (bss_section);					\
  ASM_OUTPUT_ALIGN (FILE, floor_log2 ((ALIGN) / BITS_PER_UNIT));	\
  ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL);				\
  ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1);				\
} while (0)
 
/* The # tells the Intel assembler that this is not a register name.
   However, we can't emit the # in a label definition, so we set a variable
   in ASM_OUTPUT_LABEL to control whether we want the postfix here or not.
   We append the # to the label name, but since NAME can be an expression
   we have to scan it for a non-label character and insert the # there.  */
 
#undef ASM_OUTPUT_LABELREF
#define ASM_OUTPUT_LABELREF(STREAM, NAME)	\
do {						\
  const char *name_ = NAME;			\
  if (*name_ == '*')				\
    name_++;					\
  else						\
    fputs (user_label_prefix, STREAM);		\
  fputs (name_, STREAM);			\
  if (!ia64_asm_output_label)			\
    fputc ('#', STREAM);			\
} while (0)
 
/* Intel assembler requires both flags and type if declaring a non-predefined
   section.  */
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP	"\t.section\t.init,\"ax\",\"progbits\""
#undef FINI_SECTION_ASM_OP
#define FINI_SECTION_ASM_OP	"\t.section\t.fini,\"ax\",\"progbits\""
 
/* svr4.h undefines this, so we need to define it here.  */
#define DBX_REGISTER_NUMBER(REGNO) \
  ia64_dbx_register_number(REGNO)
 
/* Things that svr4.h defines to the wrong type, because it assumes 32-bit
   ints and 32-bit longs.  */
 
#undef SIZE_TYPE
#define SIZE_TYPE "long unsigned int"
 
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
 
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
 
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
 
/* We redefine this to use the ia64 .proc pseudo-op.  */
 
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do {									\
  fputs ("\t.proc ", FILE);						\
  assemble_name (FILE, NAME);						\
  fputc ('\n', FILE);							\
  ASM_OUTPUT_LABEL (FILE, NAME);					\
} while (0)
 
/* We redefine this to use the ia64 .endp pseudo-op.  */
 
#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(FILE, NAME, DECL) \
do {									\
  fputs ("\t.endp ", FILE);						\
  assemble_name (FILE, NAME);						\
  fputc ('\n', FILE);							\
} while (0)
 
/* Override default elf definition.  */
#undef  TARGET_ASM_RELOC_RW_MASK
#define TARGET_ASM_RELOC_RW_MASK  ia64_reloc_rw_mask
#undef	TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION  ia64_select_rtx_section
 
#define SDATA_SECTION_ASM_OP "\t.sdata"
#define SBSS_SECTION_ASM_OP "\t.sbss"