gdb/cc-with-dwz.sh

   1 #! /bin/sh
   2 # Wrapper around gcc to run 'dwz' when running the testsuite.
   3
   4 # Copyright (C) 2010-2012 Free Software Foundation, Inc.
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # This program requires dwz in addition to gcc.
  19 #
  20 # Example usage:
  21 #
  22 # bash$ cd $objdir/gdb/testsuite
  23 # bash$ runtest \
  24 #   CC_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh gcc" \
  25 #   CXX_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh g++"
  26 #
  27
  28 myname=cc-with-dwz.sh
  29
  30 DWZ=${DWZ:-dwz}
  31
  32 have_link=unknown
  33 next_is_output_file=no
  34 output_file=a.out
  35
  36 for arg in "$@"
  37 do
  38     if [ "$next_is_output_file" = "yes" ]
  39     then
  40         output_file="$arg"
  41         next_is_output_file=no
  42         continue
  43     fi
  44
  45     # Poor man's gcc argument parser.
  46     # We don't need to handle all arguments, we just need to know if we're
  47     # doing a link and what the output file is.
  48     # It's not perfect, but it seems to work well enough for the task at hand.
  49     case "$arg" in
  50     "-c") have_link=no ;;
  51     "-E") have_link=no ;;
  52     "-S") have_link=no ;;
  53     "-o") next_is_output_file=yes ;;
  54     esac
  55 done
  56
  57 if [ "$next_is_output_file" = "yes" ]
  58 then
  59     echo "$myname: Unable to find output file" >&2
  60     exit 1
  61 fi
  62
  63 if [ "$have_link" = "no" ]
  64 then
  65     "$@"
  66     exit $?
  67 fi
  68
  69 "$@"
  70 rc=$?
  71 [ $rc != 0 ] && exit $rc
  72 if [ ! -f "$output_file" ]
  73 then
  74     echo "$myname: Internal error: $output_file missing." >&2
  75     exit 1
  76 fi
  77
  78 $DWZ "$output_file" > /dev/null 2>&1
  79
  80 exit 0