gcc/exec-tool.in

   1 #! /bin/sh
   2
   3 # Copyright (C) 2007-2022 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_LD_BFD_FOR_TARGET="@ORIGINAL_LD_BFD_FOR_TARGET@"
  25 ORIGINAL_LD_GOLD_FOR_TARGET="@ORIGINAL_LD_GOLD_FOR_TARGET@"
  26 ORIGINAL_PLUGIN_LD_FOR_TARGET="@ORIGINAL_PLUGIN_LD_FOR_TARGET@"
  27 ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
  28 ORIGINAL_DSYMUTIL_FOR_TARGET="@ORIGINAL_DSYMUTIL_FOR_TARGET@"
  29 exeext=@host_exeext@
  30 fast_install=@enable_fast_install@
  31 objdir=@objdir@
  32
  33 invoked=`basename "$0"`
  34 id=$invoked
  35 case "$invoked" in
  36   as)
  37     original=$ORIGINAL_AS_FOR_TARGET
  38     prog=as-new$exeext
  39     dir=gas
  40     ;;
  41   collect-ld)
  42     # Check -fuse-ld=bfd and -fuse-ld=gold
  43     case " $* " in
  44       *\ -fuse-ld=bfd\ *)
  45         original=$ORIGINAL_LD_BFD_FOR_TARGET
  46         ;;
  47       *\ -fuse-ld=gold\ *)
  48         original=$ORIGINAL_LD_GOLD_FOR_TARGET
  49         ;;
  50       *)
  51         # when using a linker plugin, gcc will always pass '-plugin' as the
  52         # first or second option to the linker.
  53         if test x"$1" = "x-plugin" || test x"$2" = "x-plugin"; then
  54           original=$ORIGINAL_PLUGIN_LD_FOR_TARGET
  55         else
  56           original=$ORIGINAL_LD_FOR_TARGET
  57         fi
  58         ;;
  59     esac
  60     prog=ld-new$exeext
  61     if test "$original" = ../gold/ld-new$exeext; then
  62       dir=gold
  63       # No need to handle relink since gold doesn't use libtool.
  64       fast_install=yes
  65     else
  66       dir=ld
  67     fi
  68     id=ld
  69     ;;
  70   nm)
  71     original=$ORIGINAL_NM_FOR_TARGET
  72     prog=nm-new$exeext
  73     dir=binutils
  74     ;;
  75   dsymutil)
  76     original=$ORIGINAL_DSYMUTIL_FOR_TARGET
  77     # We do not build this in tree - but still want to be able to execute
  78     # a configured version from the build dir.
  79     prog=
  80     dir=
  81     ;;
  82 esac
  83
  84 case "$original" in
  85   ../*)
  86     # compute absolute path of the location of this script
  87     tdir=`dirname "$0"`
  88     scriptdir=`cd "$tdir" && pwd`
  89
  90     if test -x $scriptdir/../$dir/$prog; then
  91       test "$fast_install" = yes || exec $scriptdir/../$dir/$prog ${1+"$@"}
  92
  93       # if libtool did everything it needs to do, there's a fast path
  94       lt_prog=$scriptdir/../$dir/$objdir/lt-$prog
  95       test -x $lt_prog && exec $lt_prog ${1+"$@"}
  96
  97       # libtool has not relinked ld-new yet, but we cannot just use the
  98       # previous stage (because then the relinking would just never happen!).
  99       # So we take extra care to use prev-ld/ld-new *on recursive calls*.
 100       eval LT_RCU="\${LT_RCU_$id}"
 101       test x"$LT_RCU" = x"1" && exec $scriptdir/../prev-$dir/$prog ${1+"$@"}
 102
 103       eval LT_RCU_$id=1
 104       export LT_RCU_$id
 105       $scriptdir/../$dir/$prog ${1+"$@"}
 106       result=$?
 107       exit $result
 108
 109     else
 110       exec $scriptdir/../prev-$dir/$prog ${1+"$@"}
 111     fi
 112     ;;
 113   *)
 114     exec $original ${1+"$@"}
 115     ;;
 116 esac