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julius |
/* Base configuration file for all FreeBSD targets.
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Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007 Free Software Foundation, 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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public 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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/* Common FreeBSD configuration.
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All FreeBSD architectures should include this file, which will specify
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their commonalities.
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Adapted from gcc/config/freebsd.h by
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David O'Brien <obrien@FreeBSD.org>
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Loren J. Rittle <ljrittle@acm.org>. */
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/* In case we need to know. */
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#define USING_CONFIG_FREEBSD_SPEC 1
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/* This defines which switch letters take arguments. On FreeBSD, most of
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the normal cases (defined in gcc.c) apply, and we also have -h* and
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-z* options (for the linker) (coming from SVR4).
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We also have -R (alias --rpath), no -z, --soname (-h), --assert etc. */
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#define FBSD_SWITCH_TAKES_ARG(CHAR) \
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(DEFAULT_SWITCH_TAKES_ARG (CHAR) \
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|| (CHAR) == 'h' \
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|| (CHAR) == 'z' /* ignored by ld */ \
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|| (CHAR) == 'R')
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/* This defines which multi-letter switches take arguments. */
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#define FBSD_WORD_SWITCH_TAKES_ARG(STR) \
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(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
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|| !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link") \
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|| !strcmp ((STR), "soname") || !strcmp ((STR), "defsym") \
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|| !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
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#define FBSD_TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define_with_int_value ("__FreeBSD__", FBSD_MAJOR); \
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builtin_define_std ("unix"); \
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builtin_define ("__KPRINTF_ATTRIBUTE__"); \
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builtin_assert ("system=unix"); \
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builtin_assert ("system=bsd"); \
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builtin_assert ("system=FreeBSD"); \
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FBSD_TARGET_CPU_CPP_BUILTINS(); \
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} \
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while (0)
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/* Define the default FreeBSD-specific per-CPU hook code. */
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#define FBSD_TARGET_CPU_CPP_BUILTINS() do {} while (0)
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/* Provide a CPP_SPEC appropriate for FreeBSD. We just deal with the GCC
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option `-posix', and PIC issues. */
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#define FBSD_CPP_SPEC " \
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%(cpp_cpu) \
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%(cpp_arch) \
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%{posix:-D_POSIX_SOURCE}"
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/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add
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the magical crtbegin.o file (see crtstuff.c) which provides part
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of the support for getting C++ file-scope static object constructed
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before entering `main'. */
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#define FBSD_STARTFILE_SPEC \
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"%{!shared: \
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%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
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%{!p:%{profile:gcrt1.o%s} \
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%{!profile:crt1.o%s}}}} \
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crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
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/* Provide a ENDFILE_SPEC appropriate for FreeBSD. Here we tack on
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the magical crtend.o file (see crtstuff.c) which provides part of
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the support for getting C++ file-scope static object constructed
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before entering `main', followed by a normal "finalizer" file,
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`crtn.o'. */
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#define FBSD_ENDFILE_SPEC \
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"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
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/* Provide a LIB_SPEC appropriate for FreeBSD as configured and as
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required by the user-land thread model. Before __FreeBSD_version
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500016, select the appropriate libc, depending on whether we're
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doing profiling or need threads support. At __FreeBSD_version
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500016 and later, when threads support is requested include both
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-lc and the threading lib instead of only -lc_r. To make matters
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interesting, we can't actually use __FreeBSD_version provided by
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<osreldate.h> directly since it breaks cross-compiling. As a final
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twist, make it a hard error if -pthread is provided on the command
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line and gcc was configured with --disable-threads (this will help
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avoid bug reports from users complaining about threading when they
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misconfigured the gcc bootstrap but are later consulting FreeBSD
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manual pages that refer to the mythical -pthread option). */
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/* Provide a LIB_SPEC appropriate for FreeBSD. Just select the appropriate
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libc, depending on whether we're doing profiling or need threads support.
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(similar to the default, except no -lg, and no -p). */
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#ifdef FBSD_NO_THREADS
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#define FBSD_LIB_SPEC " \
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%{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \
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is built with the --enable-threads configure-time option.} \
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%{!shared: \
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%{!pg: -lc} \
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%{pg: -lc_p} \
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}"
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#else
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#if FBSD_MAJOR < 5
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#define FBSD_LIB_SPEC " \
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%{!shared: \
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%{!pg: \
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%{!pthread:-lc} \
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%{pthread:-lc_r}} \
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%{pg: \
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%{!pthread:-lc_p} \
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%{pthread:-lc_r_p}} \
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}"
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#else
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#define FBSD_LIB_SPEC " \
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%{!shared: \
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%{!pg: %{pthread:-lpthread} -lc} \
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%{pg: %{pthread:-lpthread_p} -lc_p} \
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}"
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#endif
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#endif
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#if FBSD_MAJOR < 6
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#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"
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#else
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#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
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#endif
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