#! /bin/sh

# Copyright (C) 2007, 2008, 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.

# 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/>.

# Invoke as, ld or nm from the build tree.

ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR_TARGET@"
ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@"
ORIGINAL_GOLD_FOR_TARGET="@ORIGINAL_GOLD_FOR_TARGET@"
ORIGINAL_PLUGIN_LD_FOR_TARGET="@ORIGINAL_PLUGIN_LD_FOR_TARGET@"
ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
exeext=@host_exeext@
fast_install=@enable_fast_install@
objdir=@objdir@
version="1.1"

invoked=`basename "$0"`
id=$invoked
case "$invoked" in
  as)
    original=$ORIGINAL_AS_FOR_TARGET
    prog=as-new$exeext
    dir=gas
    ;;
  collect-ld)
    prog=ld-new$exeext
    # Look for the a command line option
    # specifying the linker to be used.
    case " $* " in
      *\ -use-gold\ *)
        original=$ORIGINAL_GOLD_FOR_TARGET
	dir=gold
        ;;
      *\ -use-ld\ * | *\ -use-ld.bfd\ *)
        original=$ORIGINAL_LD_FOR_TARGET
        dir=ld
        ;;
      *\ -plugin\ *)
        original=$ORIGINAL_PLUGIN_LD_FOR_TARGET
        dir=ld
	;;
      *)
        original=$ORIGINAL_LD_FOR_TARGET
        dir=ld
	;;
    esac

    # If the selected linker has not been configured then
    # try using the others, in the order PLUGIN-LD, LD, GOLD.
    if test x"$original" = x; then
      if test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x; then
        original=$ORIGINAL_PLUGIN_LD_FOR_TARGET
        dir=ld
      elif test x"$ORIGINAL_LD_FOR_TARGET" != x; then
        original=$ORIGINAL_LD_FOR_TARGET
        dir=ld
      elif test x"$ORIGINAL_GOLD_FOR_TARGET" != x; then
        original=$ORIGINAL_GOLD_FOR_TARGET
        dir=gold
      # Otherwise do nothing - the case statement below
      # will issue an error message for us.
      fi
    fi
    id=ld
    ;;
  nm)
    original=$ORIGINAL_NM_FOR_TARGET
    prog=nm-new$exeext
    dir=binutils
    ;;
esac

case "$original" in
  ../*)
    # compute absolute path of the location of this script
    tdir=`dirname "$0"`
    scriptdir=`cd "$tdir" && pwd`

    if test -x $scriptdir/../$dir/$prog; then
      if test "$fast_install" = yes; then
        # If libtool did everything it needs to do, there's a fast path.
        lt_prog=$scriptdir/../$dir/$objdir/lt-$prog 

	if test -x $lt_prog; then
	  original=$lt_prog
        else
          # Libtool has not relinked ld-new yet, but we cannot just use the
          # previous stage (because then the relinking would just never happen!).
          # So we take extra care to use prev-ld/ld-new *on recursive calls*.
          eval LT_RCU="\${LT_RCU_$id}"
          if test x"$LT_RCU" = x"1"; then
	    original=$scriptdir/../prev-$dir/$prog
          else
            eval LT_RCU_$id=1
            export LT_RCU_$id
            case " $* " in
              *\ -v\ *)
               echo "$invoked $version"
               echo $scriptdir/../$dir/$prog $*
               ;;
            esac
            $scriptdir/../$dir/$prog ${1+"$@"}
            result=$?
            exit $result
          fi
        fi
      else
	original=$scriptdir/../$dir/$prog
      fi
    else
      original=$scriptdir/../prev-$dir/$prog
    fi
    ;;
  "")
    echo "$invoked: executable not configured"
    exit 1
    ;;
esac

# If -v has been used then display our version number
# and then echo the command we are about to invoke.
case " $* " in
  *\ -v\ *)
    echo "$invoked $version"
    echo $original $*
    ;;
esac

if test -x $original; then
  exec "$original" ${1+"$@"}
else
  echo "$invoked: unable to locate executable: $original"
  exit 1
fi