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/* Override definitions in elfos.h to be correct for IA64.
Copyright (C) 2000-2013 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"
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