gcc-4_6_3-mobile/gcc/exec-tool.in

   1 #! /bin/sh
   2
   3 # Copyright (C) 2007, 2008, 2010, 2011 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 3, 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 COPYING3.  If not see
  18 # <http://www.gnu.org/licenses/>.
  19
  20 # Invoke as, ld or nm from the build tree.
  21
  22 ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR_TARGET@"
  23 ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@"
  24 ORIGINAL_GOLD_FOR_TARGET="@ORIGINAL_GOLD_FOR_TARGET@"
  25 ORIGINAL_PLUGIN_LD_FOR_TARGET="@ORIGINAL_PLUGIN_LD_FOR_TARGET@"
  26 ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
  27 exeext=@host_exeext@
  28 fast_install=@enable_fast_install@
  29 objdir=@objdir@
  30 version="1.1"
  31
  32 invoked=`basename "$0"`
  33 id=$invoked
  34 case "$invoked" in
  35   as)
  36     original=$ORIGINAL_AS_FOR_TARGET
  37     prog=as-new$exeext
  38     dir=gas
  39     ;;
  40   collect-ld)
  41     prog=ld-new$exeext
  42     # Look for the a command line option
  43     # specifying the linker to be used.
  44     case " $* " in
  45       *\ -use-gold\ *)
  46         original=$ORIGINAL_GOLD_FOR_TARGET
  47         dir=gold
  48         ;;
  49       *\ -use-ld\ * | *\ -use-ld.bfd\ *)
  50         original=$ORIGINAL_LD_FOR_TARGET
  51         dir=ld
  52         ;;
  53       *\ -plugin\ *)
  54         original=$ORIGINAL_PLUGIN_LD_FOR_TARGET
  55         dir=ld
  56         ;;
  57       *)
  58         original=$ORIGINAL_LD_FOR_TARGET
  59         dir=ld
  60         ;;
  61     esac
  62
  63     # If the selected linker has not been configured then
  64     # try using the others, in the order PLUGIN-LD, LD, GOLD.
  65     if test x"$original" = x; then
  66       if test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x; then
  67         original=$ORIGINAL_PLUGIN_LD_FOR_TARGET
  68         dir=ld
  69       elif test x"$ORIGINAL_LD_FOR_TARGET" != x; then
  70         original=$ORIGINAL_LD_FOR_TARGET
  71         dir=ld
  72       elif test x"$ORIGINAL_GOLD_FOR_TARGET" != x; then
  73         original=$ORIGINAL_GOLD_FOR_TARGET
  74         dir=gold
  75       # Otherwise do nothing - the case statement below
  76       # will issue an error message for us.
  77       fi
  78     fi
  79     id=ld
  80     ;;
  81   nm)
  82     original=$ORIGINAL_NM_FOR_TARGET
  83     prog=nm-new$exeext
  84     dir=binutils
  85     ;;
  86 esac
  87
  88 case "$original" in
  89   ../*)
  90     # compute absolute path of the location of this script
  91     tdir=`dirname "$0"`
  92     scriptdir=`cd "$tdir" && pwd`
  93
  94     if test -x $scriptdir/../$dir/$prog; then
  95       if test "$fast_install" = yes; then
  96         # If libtool did everything it needs to do, there's a fast path.
  97         lt_prog=$scriptdir/../$dir/$objdir/lt-$prog
  98
  99         if test -x $lt_prog; then
 100           original=$lt_prog
 101         else
 102           # Libtool has not relinked ld-new yet, but we cannot just use the
 103           # previous stage (because then the relinking would just never happen!).
 104           # So we take extra care to use prev-ld/ld-new *on recursive calls*.
 105           eval LT_RCU="\${LT_RCU_$id}"
 106           if test x"$LT_RCU" = x"1"; then
 107             original=$scriptdir/../prev-$dir/$prog
 108           else
 109             eval LT_RCU_$id=1
 110             export LT_RCU_$id
 111             case " $* " in
 112               *\ -v\ *)
 113                echo "$invoked $version"
 114                echo $scriptdir/../$dir/$prog $*
 115                ;;
 116             esac
 117             $scriptdir/../$dir/$prog ${1+"$@"}
 118             result=$?
 119             exit $result
 120           fi
 121         fi
 122       else
 123         original=$scriptdir/../$dir/$prog
 124       fi
 125     else
 126       original=$scriptdir/../prev-$dir/$prog
 127     fi
 128     ;;
 129   "")
 130     echo "$invoked: executable not configured"
 131     exit 1
 132     ;;
 133 esac
 134
 135 # If -v has been used then display our version number
 136 # and then echo the command we are about to invoke.
 137 case " $* " in
 138   *\ -v\ *)
 139     echo "$invoked $version"
 140     echo $original $*
 141     ;;
 142 esac
 143
 144 if test -x $original; then
 145   exec "$original" ${1+"$@"}
 146 else
 147   echo "$invoked: unable to locate executable: $original"
 148   exit 1
 149 fi