/* Base configuration file for all FreeBSD targets.
   Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2009, 2010
   Free Software Foundation, Inc.

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.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

/* Common FreeBSD configuration. 
   All FreeBSD architectures should include this file, which will specify
   their commonalities.
   Adapted from gcc/config/freebsd.h by 
   David O'Brien <obrien@FreeBSD.org>
   Loren J. Rittle <ljrittle@acm.org>.  */


/* In case we need to know.  */
#define USING_CONFIG_FREEBSD_SPEC 1

#define FBSD_TARGET_OS_CPP_BUILTINS()					\
  do									\
    {									\
	builtin_define_with_int_value ("__FreeBSD__", FBSD_MAJOR);	\
	builtin_define_std ("unix");					\
	builtin_define ("__KPRINTF_ATTRIBUTE__");		       	\
	builtin_assert ("system=unix");					\
	builtin_assert ("system=bsd");					\
	builtin_assert ("system=FreeBSD");				\
	FBSD_TARGET_CPU_CPP_BUILTINS();					\
    }									\
  while (0)

/* Define the default FreeBSD-specific per-CPU hook code.  */
#define FBSD_TARGET_CPU_CPP_BUILTINS() do {} while (0)

/* Provide a CPP_SPEC appropriate for FreeBSD.  We just deal with the GCC 
   option `-posix', and PIC issues.  */

#define FBSD_CPP_SPEC "							\
  %(cpp_cpu)								\
  %(cpp_arch)								\
  %{posix:-D_POSIX_SOURCE}"

/* Provide a STARTFILE_SPEC appropriate for FreeBSD.  Here we add
   the magical crtbegin.o file (see crtstuff.c) which provides part 
	of the support for getting C++ file-scope static object constructed 
	before entering `main'.  */
   
#define FBSD_STARTFILE_SPEC \
  "%{!shared: \
     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
		       %{!p:%{profile:gcrt1.o%s} \
			 %{!profile:crt1.o%s}}}} \
   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"

/* Provide a ENDFILE_SPEC appropriate for FreeBSD.  Here we tack on
   the magical crtend.o file (see crtstuff.c) which provides part of 
	the support for getting C++ file-scope static object constructed 
	before entering `main', followed by a normal "finalizer" file, 
	`crtn.o'.  */

#define FBSD_ENDFILE_SPEC \
  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"

/* Provide a LIB_SPEC appropriate for FreeBSD as configured and as
   required by the user-land thread model.  Before __FreeBSD_version
   500016, select the appropriate libc, depending on whether we're
   doing profiling or need threads support.  At __FreeBSD_version
   500016 and later, when threads support is requested include both
   -lc and the threading lib instead of only -lc_r.  To make matters
   interesting, we can't actually use __FreeBSD_version provided by
   <osreldate.h> directly since it breaks cross-compiling.  As a final
   twist, make it a hard error if -pthread is provided on the command
   line and gcc was configured with --disable-threads (this will help
   avoid bug reports from users complaining about threading when they
   misconfigured the gcc bootstrap but are later consulting FreeBSD
   manual pages that refer to the mythical -pthread option).  */

/* Provide a LIB_SPEC appropriate for FreeBSD.  Just select the appropriate
   libc, depending on whether we're doing profiling or need threads support.
   (similar to the default, except no -lg, and no -p).  */

#ifdef FBSD_NO_THREADS
#define FBSD_LIB_SPEC "							\
  %{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \
is built with the --enable-threads configure-time option.}		\
  %{!shared:								\
    %{!pg: -lc}								\
    %{pg:  -lc_p}							\
  }"
#else
#if FBSD_MAJOR < 5
#define FBSD_LIB_SPEC "							\
  %{!shared:								\
    %{!pg:								\
      %{!pthread:-lc}							\
      %{pthread:-lc_r}}							\
    %{pg:								\
      %{!pthread:-lc_p}							\
      %{pthread:-lc_r_p}}						\
  }"
#else
#define FBSD_LIB_SPEC "							\
  %{!shared:								\
    %{!pg: %{pthread:-lpthread} -lc}					\
    %{pg:  %{pthread:-lpthread_p} -lc_p}				\
  }									\
  %{shared:								\
    %{pthread:-lpthread} -lc						\
  }"
#endif
#endif

#if FBSD_MAJOR < 6
#define FBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.1"
#else
#define FBSD_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
#endif

#if defined(HAVE_LD_EH_FRAME_HDR)
#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
#endif

/* Use --as-needed -lgcc_s for eh support.  */
#ifdef HAVE_LD_AS_NEEDED
#define USE_LD_AS_NEEDED 1
#endif
