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/* Definitions of target machine for GNU compiler.
For ARM with ELF obj format.
Copyright (C) 1995-2015 Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org> and
Catherine Moore <clm@cygnus.com>
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/>. */
#ifndef OBJECT_FORMAT_ELF
#error elf.h included before elfos.h
#endif
#ifndef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
#endif
#ifndef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "-D__ELF__"
#endif
#ifndef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
{ "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
{ "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \
SUBSUBTARGET_EXTRA_SPECS
#endif
#ifndef SUBTARGET_EXTRA_ASM_SPEC
#define SUBTARGET_EXTRA_ASM_SPEC ""
#endif
#ifndef SUBTARGET_ASM_FLOAT_SPEC
#define SUBTARGET_ASM_FLOAT_SPEC "\
%{mapcs-float:-mfloat}"
#endif
#undef SUBSUBTARGET_EXTRA_SPECS
#define SUBSUBTARGET_EXTRA_SPECS
#ifndef ASM_SPEC
#define ASM_SPEC "\
%{mbig-endian:-EB} \
%{mlittle-endian:-EL} \
%(asm_cpu_spec) \
%{mapcs-*:-mapcs-%*} \
%(subtarget_asm_float_spec) \
%{mthumb-interwork:-mthumb-interwork} \
%{mfloat-abi=*} %{mfpu=*} \
%(subtarget_extra_asm_spec)"
#endif
/* The ARM uses @ are a comment character so we need to redefine
TYPE_OPERAND_FMT. */
#undef TYPE_OPERAND_FMT
#define TYPE_OPERAND_FMT "%%%s"
/* We might need a ARM specific header to function declarations. */
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
do \
{ \
ARM_DECLARE_FUNCTION_NAME (FILE, NAME, DECL); \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
ARM_OUTPUT_FN_UNWIND (FILE, TRUE); \
} \
while (0)
/* We might need an ARM specific trailer for function declarations. */
#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
do \
{ \
ARM_OUTPUT_FN_UNWIND (FILE, FALSE); \
if (!flag_inhibit_size_directive) \
ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
} \
while (0)
/* Define this macro if jump tables (for `tablejump' insns) should be
output in the text section, along with the assembler instructions.
Otherwise, the readonly data section is used. */
/* We put ARM and Thumb-2 jump tables in the text section, because it makes
the code more efficient, but for Thumb-1 it's better to put them out of
band unless we are generating compressed tables. */
#define JUMP_TABLES_IN_TEXT_SECTION \
(TARGET_32BIT || (TARGET_THUMB && (optimize_size || flag_pic)))
#ifndef LINK_SPEC
#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X"
#endif
/* Run-time Target Specification. */
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_APCS_FRAME)
#endif
#ifndef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \
{ "marm", "mlittle-endian", "mfloat-abi=soft", "mno-thumb-interwork", "fno-leading-underscore" }
#endif
#define TARGET_ASM_FILE_START_APP_OFF true
#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
/* Output an element in the static constructor array. */
#undef TARGET_ASM_CONSTRUCTOR
#define TARGET_ASM_CONSTRUCTOR arm_elf_asm_constructor
#undef TARGET_ASM_DESTRUCTOR
#define TARGET_ASM_DESTRUCTOR arm_elf_asm_destructor
/* For PIC code we need to explicitly specify (PLT) and (GOT) relocs. */
#define NEED_PLT_RELOC flag_pic
#define NEED_GOT_RELOC flag_pic
/* The ELF assembler handles GOT addressing differently to NetBSD. */
#define GOT_PCREL 0
/* Align output to a power of two. Note ".align 0" is redundant,
and also GAS will treat it as ".align 2" which we do not want. */
#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
do \
{ \
if ((POWER) > 0) \
fprintf (STREAM, "\t.align\t%d\n", POWER); \
} \
while (0)
/* Horrible hack: We want to prevent some libgcc routines being included
for some multilibs. */
#ifndef __ARM_ARCH_6M__
#undef L_fixdfsi
#undef L_fixunsdfsi
#undef L_truncdfsf2
#undef L_fixsfsi
#undef L_fixunssfsi
#undef L_floatdidf
#undef L_floatdisf
#undef L_floatundidf
#undef L_floatundisf
#endif
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