view gcc/config/ia64/sysv4.h @ 67:f6334be47118

update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents 77e2b8dfacca
children 04ced10e8804
line wrap: on
line source

/* Override definitions in elfos.h to be correct for IA64.

Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005,
2007, 2010 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\""

#define DBX_REGISTER_NUMBER(REGNO) \
  ia64_dbx_register_number(REGNO)

#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) \
  ia64_start_function(FILE,NAME,DECL)

/* 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"