gcc/exec-tool.in

   1 #! /bin/sh
   2
   3 # Copyright (C) 2007 Free Software Foundation, Inc.
   4 # This file is part of GCC.
   5
   6 # GCC is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2, or (at your option)
   9 # any later version.
  10
  11 # GCC is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with GCC; see the file COPYING.  If not, write to
  18 # the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 # Boston MA 02110-1301, USA.
  20
  21 # Invoke as, ld or nm from the build tree.
  22
  23 ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR_TARGET@"
  24 ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@"
  25 ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
  26 exeext=@host_exeext@
  27
  28 invoked=`basename "$0"`
  29 case "$invoked" in
  30   as)
  31     original=$ORIGINAL_AS_FOR_TARGET
  32     prog=as-new$exeext
  33     dir=gas
  34     ;;
  35   collect-ld)
  36     original=$ORIGINAL_LD_FOR_TARGET
  37     prog=ld-new$exeext
  38     dir=ld
  39     ;;
  40   nm)
  41     original=$ORIGINAL_NM_FOR_TARGET
  42     prog=nm-new$exeext
  43     dir=binutils
  44     ;;
  45 esac
  46
  47 case "$original" in
  48   ../*)
  49     # compute absolute path of the location of this script
  50     tdir=`dirname "$0"`
  51     scriptdir=`cd "$tdir" && pwd`
  52
  53     if test -x $scriptdir/../$dir/$prog; then
  54       exec $scriptdir/../$dir/$prog ${1+"$@"}
  55     else
  56       exec $scriptdir/../prev-$dir/$prog ${1+"$@"}
  57     fi
  58     ;;
  59   *)
  60     exec "$original" ${1+"$@"}
  61     ;;
  62 esac
  63
  64