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/* Configuration file for ARM GNU/Linux EABI targets.
Copyright (C) 2004-2015 Free Software Foundation, Inc.
Contributed by CodeSourcery, LLC
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/>. */
/* On EABI GNU/Linux, we want both the BPABI builtins and the
GNU/Linux builtins. */
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
TARGET_BPABI_CPP_BUILTINS(); \
GNU_USER_TARGET_OS_CPP_BUILTINS(); \
ANDROID_TARGET_OS_CPP_BUILTINS(); \
} \
while (false)
/* We default to a soft-float ABI so that binaries can run on all
target hardware. If you override this to use the hard-float ABI then
change the setting of GLIBC_DYNAMIC_LINKER_DEFAULT as well. */
#undef TARGET_DEFAULT_FLOAT_ABI
#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
/* We default to the "aapcs-linux" ABI so that enums are int-sized by
default. */
#undef ARM_DEFAULT_ABI
#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
/* Default to armv5t so that thumb shared libraries work.
The ARM10TDMI core is the default for armv5t, so set
SUBTARGET_CPU_DEFAULT to achieve this. */
#undef SUBTARGET_CPU_DEFAULT
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
/* TARGET_BIG_ENDIAN_DEFAULT is set in
config.gcc for big endian configurations. */
#undef TARGET_LINKER_EMULATION
#if TARGET_BIG_ENDIAN_DEFAULT
#define TARGET_LINKER_EMULATION "armelfb_linux_eabi"
#else
#define TARGET_LINKER_EMULATION "armelf_linux_eabi"
#endif
#undef SUBTARGET_EXTRA_LINK_SPEC
#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION
/* GNU/Linux on ARM currently supports three dynamic linkers:
- ld-linux.so.2 - for the legacy ABI
- ld-linux.so.3 - for the EABI-derived soft-float ABI
- ld-linux-armhf.so.3 - for the EABI-derived hard-float ABI.
All the dynamic linkers live in /lib.
We default to soft-float, but this can be overridden by changing both
GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI. */
#undef GLIBC_DYNAMIC_LINKER
#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
#define GLIBC_DYNAMIC_LINKER \
"%{mfloat-abi=hard:" GLIBC_DYNAMIC_LINKER_HARD_FLOAT "} \
%{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
%{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
/* For ARM musl currently supports four dynamic linkers:
- ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
- ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
- ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
- ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
musl does not support the legacy OABI mode.
All the dynamic linkers live in /lib.
We default to soft-float, EL. */
#undef MUSL_DYNAMIC_LINKER
#if TARGET_BIG_ENDIAN_DEFAULT
#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
#else
#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
#endif
#define MUSL_DYNAMIC_LINKER \
"/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
use the GNU/Linux version, not the generic BPABI version. */
#undef LINK_SPEC
#define LINK_SPEC EABI_LINK_SPEC \
LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
#undef ASAN_CC1_SPEC
#define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
#undef CC1_SPEC
#define CC1_SPEC \
LINUX_OR_ANDROID_CC (GNU_USER_TARGET_CC1_SPEC " " ASAN_CC1_SPEC, \
GNU_USER_TARGET_CC1_SPEC " " ASAN_CC1_SPEC " " \
ANDROID_CC1_SPEC)
#define CC1PLUS_SPEC \
LINUX_OR_ANDROID_CC ("", ANDROID_CC1PLUS_SPEC)
#undef LIB_SPEC
#define LIB_SPEC \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_LIB_SPEC, \
GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC " " ANDROID_LIB_SPEC)
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_STARTFILE_SPEC, ANDROID_STARTFILE_SPEC)
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
do not use -lfloat. */
#undef LIBGCC_SPEC
/* Clear the instruction cache from `beg' to `end'. This is
implemented in lib1funcs.S, so ensure an error if this definition
is used. */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE(BEG, END) not_used
#define ARM_TARGET2_DWARF_FORMAT (DW_EH_PE_pcrel | DW_EH_PE_indirect)
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