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114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/* Definitions of target machine for GNU compiler, NetBSD/arm ELF version.
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Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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Contributed by Wasabi Systems, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* Run-time Target Specification. */
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#undef MULTILIB_DEFAULTS
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#define MULTILIB_DEFAULTS { "mabi=aapcs-linux" }
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#define TARGET_LINKER_EABI_SUFFIX \
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(TARGET_DEFAULT_FLOAT_ABI == ARM_FLOAT_ABI_SOFT \
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? "%{!mabi=apcs-gnu:%{!mabi=atpcs:%{mfloat-abi=hard:_eabihf;:_eabi}}}" \
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: "%{!mabi=apcs-gnu:%{!mabi=atpcs:%{mfloat-abi=soft:_eabi;:_eabihf}}}")
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#define TARGET_LINKER_BIG_EMULATION "armelfb_nbsd%(linker_eabi_suffix)"
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#define TARGET_LINKER_LITTLE_EMULATION "armelf_nbsd%(linker_eabi_suffix)"
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/* TARGET_BIG_ENDIAN_DEFAULT is set in
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config.gcc for big endian configurations. */
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#undef TARGET_LINKER_EMULATION
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#if TARGET_BIG_ENDIAN_DEFAULT
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#define TARGET_LINKER_EMULATION TARGET_LINKER_BIG_EMULATION
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#undef BE8_LINK_SPEC
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#define BE8_LINK_SPEC " %{!mlittle-endian:%{march=armv7-a|mcpu=cortex-a5|mcpu=cortex-a8|mcpu=cortex-a9:%{!r:--be8}}}"
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#else
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#define TARGET_LINKER_EMULATION TARGET_LINKER_LITTLE_EMULATION
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#endif
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#undef ARM_DEFAULT_ABI
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#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
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#undef ARM_EABI_UNWIND_TABLES
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#define ARM_EABI_UNWIND_TABLES 0
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#undef ARM_UNWIND_INFO
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#define ARM_UNWIND_INFO 0
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#undef ARM_DWARF_UNWIND_TABLES
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#define ARM_DWARF_UNWIND_TABLES 1
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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if (TARGET_AAPCS_BASED) \
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TARGET_BPABI_CPP_BUILTINS(); \
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NETBSD_OS_CPP_BUILTINS_ELF(); \
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if (ARM_DWARF_UNWIND_TABLES) \
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builtin_define ("__ARM_DWARF_EH__"); \
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if (ARM_EABI_UNWIND_TABLES) \
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builtin_define ("__UNWIND_TABLES__"); \
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} \
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while (0)
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
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/*
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* Override AAPCS types to remain compatible the existing NetBSD types.
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*/
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef SIZE_TYPE
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#define SIZE_TYPE "long unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "long int"
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#undef SUBTARGET_EXTRA_ASM_SPEC
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#define SUBTARGET_EXTRA_ASM_SPEC \
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"-matpcs %{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu} %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
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/* Default to full VFP if -mhard-float is specified. */
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#undef SUBTARGET_ASM_FLOAT_SPEC
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#define SUBTARGET_ASM_FLOAT_SPEC \
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"%{mhard-float:%{!mfpu=*:-mfpu=vfp}} \
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%{mfloat-abi=hard:%{!mfpu=*:-mfpu=vfp}}"
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#undef SUBTARGET_EXTRA_SPECS
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#define SUBTARGET_EXTRA_SPECS \
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{ "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
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{ "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \
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{ "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
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{ "linker_eabi_suffix", TARGET_LINKER_EABI_SUFFIX }, \
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{ "linker_emulation", TARGET_LINKER_EMULATION }, \
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{ "linker_big_emulation", TARGET_LINKER_BIG_EMULATION }, \
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{ "linker_little_emulation", TARGET_LINKER_LITTLE_EMULATION }, \
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{ "be8_link_spec", BE8_LINK_SPEC }, \
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{ "target_fix_v4bx_spec", TARGET_FIX_V4BX_SPEC }, \
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{ "netbsd_entry_point", NETBSD_ENTRY_POINT },
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#define NETBSD_ENTRY_POINT "__start"
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#undef LINK_SPEC
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#define LINK_SPEC \
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"-X %{mbig-endian:-EB -m %(linker_big_emulation)} \
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%{mlittle-endian:-EL -m %(linker_liitle_emulation)} \
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%{!mbig-endian:%{!mlittle-endian:-m %(linker_emulation)}} \
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%(be8_link_spec) %(target_fix_v4bx_spec) \
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%(netbsd_link_spec)"
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