/* Definitions of target machine for GNU compiler,
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/* Definitions of target machine for GNU compiler,
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for PowerPC machines running Linux.
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for PowerPC machines running Linux.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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Contributed by Michael Meissner (meissner@cygnus.com).
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Contributed by Michael Meissner (meissner@cygnus.com).
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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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#undef MD_EXEC_PREFIX
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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#undef MD_STARTFILE_PREFIX
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/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
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/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
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process. */
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process. */
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#define OS_MISSING_POWERPC64 1
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#define OS_MISSING_POWERPC64 1
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/* We use glibc _mcount for profiling. */
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/* We use glibc _mcount for profiling. */
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#define NO_PROFILE_COUNTERS 1
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#define NO_PROFILE_COUNTERS 1
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/* glibc has float and long double forms of math functions. */
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/* glibc has float and long double forms of math functions. */
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#undef TARGET_C99_FUNCTIONS
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#undef TARGET_C99_FUNCTIONS
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#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
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#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
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#undef TARGET_OS_CPP_BUILTINS
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#undef TARGET_OS_CPP_BUILTINS
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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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builtin_define_std ("PPC"); \
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builtin_define_std ("PPC"); \
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builtin_define_std ("powerpc"); \
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builtin_define_std ("powerpc"); \
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builtin_assert ("cpu=powerpc"); \
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builtin_assert ("cpu=powerpc"); \
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builtin_assert ("machine=powerpc"); \
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builtin_assert ("machine=powerpc"); \
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TARGET_OS_SYSV_CPP_BUILTINS (); \
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TARGET_OS_SYSV_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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#undef CPP_OS_DEFAULT_SPEC
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#undef CPP_OS_DEFAULT_SPEC
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#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
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#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
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/* The GNU C++ standard library currently requires _GNU_SOURCE being
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/* The GNU C++ standard library currently requires _GNU_SOURCE being
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defined on glibc-based systems. This temporary hack accomplishes this,
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defined on glibc-based systems. This temporary hack accomplishes this,
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it should go away as soon as libstdc++-v3 has a real fix. */
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it should go away as soon as libstdc++-v3 has a real fix. */
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#undef CPLUSPLUS_CPP_SPEC
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#undef CPLUSPLUS_CPP_SPEC
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#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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#undef LINK_SHLIB_SPEC
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#undef LINK_SHLIB_SPEC
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#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
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#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
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#undef LIB_DEFAULT_SPEC
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#undef LIB_DEFAULT_SPEC
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#define LIB_DEFAULT_SPEC "%(lib_linux)"
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#define LIB_DEFAULT_SPEC "%(lib_linux)"
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#undef STARTFILE_DEFAULT_SPEC
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#undef STARTFILE_DEFAULT_SPEC
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#define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
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#define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
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#undef ENDFILE_DEFAULT_SPEC
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#undef ENDFILE_DEFAULT_SPEC
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#define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
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#define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
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#undef LINK_START_DEFAULT_SPEC
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#undef LINK_START_DEFAULT_SPEC
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#define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
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#define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
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#undef LINK_OS_DEFAULT_SPEC
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#undef LINK_OS_DEFAULT_SPEC
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#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
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#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
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#define LINK_GCC_C_SEQUENCE_SPEC \
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#define LINK_GCC_C_SEQUENCE_SPEC \
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"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
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"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
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/* Use --as-needed -lgcc_s for eh support. */
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/* Use --as-needed -lgcc_s for eh support. */
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#ifdef HAVE_LD_AS_NEEDED
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#ifdef HAVE_LD_AS_NEEDED
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#define USE_LD_AS_NEEDED 1
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#define USE_LD_AS_NEEDED 1
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#endif
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#endif
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#undef TARGET_VERSION
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");
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#define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");
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/* Override rs6000.h definition. */
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/* Override rs6000.h definition. */
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#undef ASM_APP_ON
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#undef ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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#define ASM_APP_ON "#APP\n"
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/* Override rs6000.h definition. */
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/* Override rs6000.h definition. */
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#undef ASM_APP_OFF
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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#define ASM_APP_OFF "#NO_APP\n"
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/* For backward compatibility, we must continue to use the AIX
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/* For backward compatibility, we must continue to use the AIX
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structure return convention. */
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structure return convention. */
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#undef DRAFT_V4_STRUCT_RET
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#undef DRAFT_V4_STRUCT_RET
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#define DRAFT_V4_STRUCT_RET 1
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#define DRAFT_V4_STRUCT_RET 1
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/* We are 32-bit all the time, so optimize a little. */
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/* We are 32-bit all the time, so optimize a little. */
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#undef TARGET_64BIT
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#undef TARGET_64BIT
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#define TARGET_64BIT 0
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#define TARGET_64BIT 0
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/* We don't need to generate entries in .fixup, except when
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/* We don't need to generate entries in .fixup, except when
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-mrelocatable or -mrelocatable-lib is given. */
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-mrelocatable or -mrelocatable-lib is given. */
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#undef RELOCATABLE_NEEDS_FIXUP
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#undef RELOCATABLE_NEEDS_FIXUP
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#define RELOCATABLE_NEEDS_FIXUP \
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#define RELOCATABLE_NEEDS_FIXUP \
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(target_flags & target_flags_explicit & MASK_RELOCATABLE)
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(target_flags & target_flags_explicit & MASK_RELOCATABLE)
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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#define TARGET_POSIX_IO
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#define TARGET_POSIX_IO
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#define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h"
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#define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h"
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#ifdef TARGET_LIBC_PROVIDES_SSP
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#ifdef TARGET_LIBC_PROVIDES_SSP
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/* ppc32 glibc provides __stack_chk_guard in -0x7008(2). */
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/* ppc32 glibc provides __stack_chk_guard in -0x7008(2). */
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#define TARGET_THREAD_SSP_OFFSET -0x7008
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#define TARGET_THREAD_SSP_OFFSET -0x7008
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#endif
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#endif
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#define POWERPC_LINUX
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#define POWERPC_LINUX
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/* ppc linux has 128-bit long double support in glibc 2.4 and later. */
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/* ppc linux has 128-bit long double support in glibc 2.4 and later. */
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#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
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#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
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#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
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#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
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#endif
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#endif
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