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/* Base configuration file for all FreeBSD targets.

   Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2009 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

/* This defines which switch letters take arguments.  On FreeBSD, most of

   the normal cases (defined in gcc.c) apply, and we also have -h* and

   -z* options (for the linker) (coming from SVR4).

   We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */

#define FBSD_SWITCH_TAKES_ARG(CHAR)                                     \

  (DEFAULT_SWITCH_TAKES_ARG (CHAR)                                      \

    || (CHAR) == 'h'                                                    \

    || (CHAR) == 'z' /* ignored by ld */                                \

    || (CHAR) == 'R')

/* This defines which multi-letter switches take arguments.  */

#define FBSD_WORD_SWITCH_TAKES_ARG(STR)                                 \

  (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                                  \

   || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link")         \

   || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym")            \

   || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))

#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}                                \

  }"

#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