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/* Machine description for AArch64 architecture.
Copyright (C) 2009-2014 Free Software Foundation, Inc.
Contributed by ARM Ltd.
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/>. */
#ifndef GCC_AARCH64_ELF_H
#define GCC_AARCH64_ELF_H
#define ASM_OUTPUT_LABELREF(FILE, NAME) \
aarch64_asm_output_labelref (FILE, NAME)
#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
do \
{ \
assemble_name (FILE, NAME1); \
fputs (" = ", FILE); \
assemble_name (FILE, NAME2); \
fputc ('\n', FILE); \
} while (0)
#define TEXT_SECTION_ASM_OP "\t.text"
#define DATA_SECTION_ASM_OP "\t.data"
#define BSS_SECTION_ASM_OP "\t.bss"
#define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\"aw\",%init_array"
#define DTORS_SECTION_ASM_OP "\t.section\t.fini_array,\"aw\",%fini_array"
#undef INIT_SECTION_ASM_OP
#undef FINI_SECTION_ASM_OP
#define INIT_ARRAY_SECTION_ASM_OP CTORS_SECTION_ASM_OP
#define FINI_ARRAY_SECTION_ASM_OP DTORS_SECTION_ASM_OP
/* Since we use .init_array/.fini_array we don't need the markers at
the start and end of the ctors/dtors arrays. */
#define CTOR_LIST_BEGIN asm (CTORS_SECTION_ASM_OP)
#define CTOR_LIST_END /* empty */
#define DTOR_LIST_BEGIN asm (DTORS_SECTION_ASM_OP)
#define DTOR_LIST_END /* empty */
#undef TARGET_ASM_CONSTRUCTOR
#define TARGET_ASM_CONSTRUCTOR aarch64_elf_asm_constructor
#undef TARGET_ASM_DESTRUCTOR
#define TARGET_ASM_DESTRUCTOR aarch64_elf_asm_destructor
#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
/* Support for -falign-* switches. Use .p2align to ensure that code
sections are padded with NOP instructions, rather than zeros. */
#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
do \
{ \
if ((LOG) != 0) \
{ \
if ((MAX_SKIP) == 0) \
fprintf ((FILE), "\t.p2align %d\n", (int) (LOG)); \
else \
fprintf ((FILE), "\t.p2align %d,,%d\n", \
(int) (LOG), (int) (MAX_SKIP)); \
} \
} while (0)
#endif /* HAVE_GAS_MAX_SKIP_P2ALIGN */
#define JUMP_TABLES_IN_TEXT_SECTION 0
#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \
do { \
switch (GET_MODE (BODY)) \
{ \
case QImode: \
asm_fprintf (STREAM, "\t.byte\t(%LL%d - %LLrtx%d) / 4\n", \
VALUE, REL); \
break; \
case HImode: \
asm_fprintf (STREAM, "\t.2byte\t(%LL%d - %LLrtx%d) / 4\n", \
VALUE, REL); \
break; \
case SImode: \
case DImode: /* See comment in aarch64_output_casesi. */ \
asm_fprintf (STREAM, "\t.word\t(%LL%d - %LLrtx%d) / 4\n", \
VALUE, REL); \
break; \
default: \
gcc_unreachable (); \
} \
} while (0)
#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
fprintf(STREAM, "\t.align\t%d\n", (int)POWER)
#define ASM_COMMENT_START "//"
#define LOCAL_LABEL_PREFIX "."
#define USER_LABEL_PREFIX ""
#define GLOBAL_ASM_OP "\t.global\t"
#ifdef TARGET_BIG_ENDIAN_DEFAULT
#define ENDIAN_SPEC "-mbig-endian"
#else
#define ENDIAN_SPEC "-mlittle-endian"
#endif
#if TARGET_DATA_MODEL == 1
#define ABI_SPEC "-mabi=lp64"
#define MULTILIB_DEFAULTS { "mabi=lp64" }
#elif TARGET_DATA_MODEL == 2
#define ABI_SPEC "-mabi=ilp32"
#define MULTILIB_DEFAULTS { "mabi=ilp32" }
#else
#error "Unknown or undefined TARGET_DATA_MODEL!"
#endif
/* Force the default endianness and ABI flags onto the command line
in order to make the other specs easier to write. */
#undef DRIVER_SELF_SPECS
#define DRIVER_SELF_SPECS \
" %{!mbig-endian:%{!mlittle-endian:" ENDIAN_SPEC "}}" \
" %{!mabi=*:" ABI_SPEC "}"
#ifdef HAVE_AS_MABI_OPTION
#define ASM_MABI_SPEC "%{mabi=*:-mabi=%*}"
#else
#define ASM_MABI_SPEC "%{mabi=lp64:}"
#endif
#ifndef ASM_SPEC
#define ASM_SPEC "\
%{mbig-endian:-EB} \
%{mlittle-endian:-EL} \
%{march=*:-march=%*} \
%(asm_cpu_spec)" \
ASM_MABI_SPEC
#endif
#undef TYPE_OPERAND_FMT
#define TYPE_OPERAND_FMT "%%%s"
#undef TARGET_ASM_NAMED_SECTION
#define TARGET_ASM_NAMED_SECTION aarch64_elf_asm_named_section
/* Stabs debug not required. */
#undef DBX_DEBUGGING_INFO
#endif /* GCC_AARCH64_ELF_H */
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