Merge GDB 7.5.1

gdb/cc-with-dwz.sh

 #! /bin/sh
-# Wrapper around gcc to add the .gdb_index section when running the testsuite.
+# Wrapper around gcc to run 'dwz' when running the testsuite.
 
 # Copyright (C) 2010-2012 Free Software Foundation, Inc.
 # This program 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 of the License, or
 # (at your option) any later version.
 #
 # This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# This program requires gdb and objcopy in addition to gcc.
-# The default values are gdb from the build tree and objcopy from $PATH.
-# They may be overridden by setting environment variables GDB and OBJCOPY
-# respectively.
-# We assume the current directory is either $obj/gdb or $obj/gdb/testsuite.
+# This program requires dwz in addition to gcc.
 #
 # Example usage:
 #
 # bash$ cd $objdir/gdb/testsuite
 # bash$ runtest \
-#   CC_FOR_TARGET="/bin/sh $srcdir/cc-with-index.sh gcc" \
-#   CXX_FOR_TARGET="/bin/sh $srcdir/cc-with-index.sh g++"
+#   CC_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh gcc" \
+#   CXX_FOR_TARGET="/bin/sh $srcdir/cc-with-dwz.sh g++"
 #
-# For documentation on index files: info -f gdb.info -n "Index Files"
 
-myname=cc-with-index.sh
+myname=cc-with-dwz.sh
 
-if [ -z "$GDB" ]
-then
-    if [ -f ./gdb ]
-    then
-        GDB="./gdb"
-    elif [ -f ../gdb ]
-    then
-        GDB="../gdb"
-    elif [ -f ../../gdb ]
-    then
-        GDB="../../gdb"
-    else
-        echo "$myname: unable to find usable gdb" >&2
-        exit 1
-    fi
-fi
-
-OBJCOPY=${OBJCOPY:-objcopy}
+DWZ=${DWZ:-dwz}
 
 have_link=unknown
 next_is_output_file=no
 output_file=a.out
 
 for arg in "$@"
 do
     if [ "$next_is_output_file" = "yes" ]
     then
         output_file="$arg"
@@ skipping 18 matching lines @@
     echo "$myname: Unable to find output file" >&2
     exit 1
 fi
 
 if [ "$have_link" = "no" ]
 then
     "$@"
     exit $?
 fi
 
-index_file="${output_file}.gdb-index"
-if [ -f "$index_file" ]
-then
-    echo "$myname: Index file $index_file exists, won't clobber." >&2
-    exit 1
-fi
-
-output_dir="${output_file%/*}"
-[ "$output_dir" = "$output_file" ] && output_dir="."
-
 "$@"
 rc=$?
 [ $rc != 0 ] && exit $rc
 if [ ! -f "$output_file" ]
 then
     echo "$myname: Internal error: $output_file missing." >&2
     exit 1
 fi
 
-$GDB --batch-silent -nx -ex "file $output_file" -ex "save gdb-index $output_dir"
-rc=$?
-[ $rc != 0 ] && exit $rc
+$DWZ "$output_file" > /dev/null 2>&1
 
-# GDB might not always create an index.  Cope.
-if [ -f "$index_file" ]
-then
-    $OBJCOPY --add-section .gdb_index="$index_file" \
-        --set-section-flags .gdb_index=readonly \
-        "$output_file" "$output_file"
-    rc=$?
-else
-    rc=0
-fi
-
-rm -f "$index_file"
-exit $rc
+exit 0