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/* Common VxWorks target definitions for GNU compiler.

   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007

   Free Software Foundation, Inc.

   Contributed by Wind River Systems.

   Rewritten by CodeSourcery, LLC.

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.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

/* In kernel mode, VxWorks provides all the libraries itself, as well as

   the functionality of startup files, etc.  In RTP mode, it behaves more

   like a traditional Unix, with more external files.  Most of our specs

   must be aware of the difference.  */

/* The directory containing the VxWorks target headers.  */

#define VXWORKS_TARGET_DIR  "/home/tornado/base6/target"

/* Since we provide a default -isystem, expand -isystem on the command

   line early.  */

#undef VXWORKS_ADDITIONAL_CPP_SPEC

#define VXWORKS_ADDITIONAL_CPP_SPEC "                                   \

 %{!nostdinc:%{isystem*}}                                               \

 %{mrtp: -D__RTP__=1                                                    \

         %{!nostdinc:-isystem " VXWORKS_TARGET_DIR "/usr/h}}            \

 %{!mrtp:-D_WRS_KERNEL=1                                                \

         %{!nostdinc:-isystem " VXWORKS_TARGET_DIR "/h}}"

/* The references to __init and __fini will be satisfied by

   libc_internal.a.  */

#undef VXWORKS_LIB_SPEC

#define VXWORKS_LIB_SPEC                                                \

"%{mrtp:%{shared:-u " USER_LABEL_PREFIX "__init -u " USER_LABEL_PREFIX "__fini} \

        %{!shared:%{non-static:-u " USER_LABEL_PREFIX "_STI__6__rtld -ldl} \

                  --start-group -lc -lgcc -lc_internal -lnet -ldsi      \

                  --end-group}}"

/* The no-op spec for "-shared" below is present because otherwise GCC

   will treat it as an unrecognized option.  */

#undef VXWORKS_LINK_SPEC

#define VXWORKS_LINK_SPEC                               \

"%{!mrtp:-r}                                            \

 %{!shared:                                             \

   %{mrtp:-q %{h*}                                      \

          %{R*} %{!Wl,-T*: %{!T*: %(link_start) }}      \

          %(link_target) %(link_os)}}                   \

 %{v:-V}                                                \

 %{shared:-shared}                                      \

 %{Bstatic:-Bstatic}                                    \

 %{Bdynamic:-Bdynamic}                                  \

 %{!Xbind-lazy:-z now}                                  \

 %{Xbind-now:%{Xbind-lazy:                              \

   %e-Xbind-now and -Xbind-lazy are incompatible}}      \

 %{mrtp:%{!shared:%{!non-static:-static}                \

                  %{non-static:--force-dynamic --export-dynamic}}}"

/* For VxWorks, the system provides libc_internal.a.  This is a superset

   of libgcc.a; we want to use it.  Make sure not to dynamically export

   any of its symbols, though.  Always look for libgcc.a first so that

   we get the latest versions of the GNU intrinsics during our builds.  */

#undef VXWORKS_LIBGCC_SPEC

#define VXWORKS_LIBGCC_SPEC \

  "-lgcc %{mrtp:--exclude-libs=libc_internal,libgcc -lc_internal}"

#undef VXWORKS_STARTFILE_SPEC

#define VXWORKS_STARTFILE_SPEC "%{mrtp:%{!shared:crt0.o%s}}"

#define VXWORKS_ENDFILE_SPEC ""

/* We can use .ctors/.dtors sections only in RTP mode.

   Unfortunately this must be an integer constant expression;

   fix up in override_options.  */

#undef VXWORKS_OVERRIDE_OPTIONS

#define VXWORKS_OVERRIDE_OPTIONS do { \

  targetm.have_ctors_dtors = TARGET_VXWORKS_RTP; \

} while (0)

/* The VxWorks runtime uses a clever trick to get the sentinel entry

   (-1) inserted at the beginning of the .ctors segment.  This trick

   will not work if we ever generate any entries in plain .ctors

   sections; we must always use .ctors.PRIORITY.  */

#define ALWAYS_NUMBER_CTORS_SECTIONS 1

/* The name of the symbol for the table of GOTs in a particular

   RTP.  */

#define VXWORKS_GOTT_BASE "__GOTT_BASE__"

/* The name of the symbol for the index into the table of GOTs for the

   GOT associated with the current shared library.  */

#define VXWORKS_GOTT_INDEX "__GOTT_INDEX__"

#define VXWORKS_KIND VXWORKS_KIND_NORMAL