/* Definitions for ARM running Linux-based GNU systems using ELF
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/* Definitions for ARM running Linux-based GNU systems using ELF
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Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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2005, 2006, 2007
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2005, 2006, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by Philip Blundell <philb@gnu.org>
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Contributed by Philip Blundell <philb@gnu.org>
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This file is part of GCC.
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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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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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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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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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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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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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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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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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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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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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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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/* elfos.h should have already been included. Now just override
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/* elfos.h should have already been included. Now just override
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any conflicting definitions and add any extras. */
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any conflicting definitions and add any extras. */
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/* Run-time Target Specification. */
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/* Run-time Target Specification. */
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#undef TARGET_VERSION
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#undef TARGET_VERSION
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#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
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#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
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#undef TARGET_DEFAULT_FLOAT_ABI
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#undef TARGET_DEFAULT_FLOAT_ABI
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
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#undef TARGET_DEFAULT
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (0)
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#define TARGET_DEFAULT (0)
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
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#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
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#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
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#undef MULTILIB_DEFAULTS
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#undef MULTILIB_DEFAULTS
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#define MULTILIB_DEFAULTS \
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#define MULTILIB_DEFAULTS \
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{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
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{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
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/* Now we define the strings used to build the spec file. */
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/* Now we define the strings used to build the spec file. */
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#undef LIB_SPEC
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#undef LIB_SPEC
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#define LIB_SPEC \
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#define LIB_SPEC \
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"%{pthread:-lpthread} \
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"%{pthread:-lpthread} \
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%{shared:-lc} \
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%{shared:-lc} \
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%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
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%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
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#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
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#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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#define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v} \
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#define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v} \
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%{b} \
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%{b} \
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%{static:-Bstatic} \
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%{static:-Bstatic} \
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%{shared:-shared} \
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%{shared:-shared} \
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%{symbolic:-Bsymbolic} \
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%{symbolic:-Bsymbolic} \
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%{rdynamic:-export-dynamic} \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
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%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
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-X \
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-X \
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%{mbig-endian:-EB}" \
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%{mbig-endian:-EB}" \
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SUBTARGET_EXTRA_LINK_SPEC
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SUBTARGET_EXTRA_LINK_SPEC
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#undef LINK_SPEC
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#undef LINK_SPEC
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#define LINK_SPEC LINUX_TARGET_LINK_SPEC
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#define LINK_SPEC LINUX_TARGET_LINK_SPEC
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#define TARGET_OS_CPP_BUILTINS() \
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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do \
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{ \
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{ \
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LINUX_TARGET_OS_CPP_BUILTINS(); \
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LINUX_TARGET_OS_CPP_BUILTINS(); \
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} \
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} \
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while (0)
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while (0)
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/* This is how we tell the assembler that two symbols have the same value. */
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/* This is how we tell the assembler that two symbols have the same value. */
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#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
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#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
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do \
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do \
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{ \
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{ \
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assemble_name (FILE, NAME1); \
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assemble_name (FILE, NAME1); \
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fputs (" = ", FILE); \
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fputs (" = ", FILE); \
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assemble_name (FILE, NAME2); \
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assemble_name (FILE, NAME2); \
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fputc ('\n', FILE); \
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fputc ('\n', FILE); \
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} \
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} \
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while (0)
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while (0)
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/* NWFPE always understands FPA instructions. */
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/* NWFPE always understands FPA instructions. */
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#undef FPUTYPE_DEFAULT
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#undef FPUTYPE_DEFAULT
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#define FPUTYPE_DEFAULT FPUTYPE_FPA_EMU3
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#define FPUTYPE_DEFAULT FPUTYPE_FPA_EMU3
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/* Call the function profiler with a given profile label. */
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/* Call the function profiler with a given profile label. */
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#undef ARM_FUNCTION_PROFILER
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#undef ARM_FUNCTION_PROFILER
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#define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \
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#define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \
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{ \
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{ \
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fprintf (STREAM, "\tbl\tmcount%s\n", \
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fprintf (STREAM, "\tbl\tmcount%s\n", \
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(TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \
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(TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \
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}
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}
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/* The GNU/Linux profiler clobbers the link register. Make sure the
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/* The GNU/Linux profiler clobbers the link register. Make sure the
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prologue knows to save it. */
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prologue knows to save it. */
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#define PROFILE_HOOK(X) \
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#define PROFILE_HOOK(X) \
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emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNUM)))
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emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNUM)))
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/* The GNU/Linux profiler needs a frame pointer. */
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/* The GNU/Linux profiler needs a frame pointer. */
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#define SUBTARGET_FRAME_POINTER_REQUIRED current_function_profile
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#define SUBTARGET_FRAME_POINTER_REQUIRED current_function_profile
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