| #! /bin/sh |
| |
| # Add a .gdb_index section to a file. |
| |
| # Copyright (C) 2010-2016 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 assumes gdb and objcopy are in $PATH. |
| # If not, or you want others, pass the following in the environment |
| GDB=${GDB:=gdb} |
| OBJCOPY=${OBJCOPY:=objcopy} |
| |
| myname="${0##*/}" |
| |
| if test $# != 1; then |
| echo "usage: $myname FILE" 1>&2 |
| exit 1 |
| fi |
| |
| file="$1" |
| |
| if test ! -r "$file"; then |
| echo "$myname: unable to access: $file" 1>&2 |
| exit 1 |
| fi |
| |
| dir="${file%/*}" |
| test "$dir" = "$file" && dir="." |
| index="${file}.gdb-index" |
| |
| rm -f $index |
| # Ensure intermediate index file is removed when we exit. |
| trap "rm -f $index" 0 |
| |
| $GDB --batch -nx -iex 'set auto-load no' \ |
| -ex "file $file" -ex "save gdb-index $dir" || { |
| # Just in case. |
| status=$? |
| echo "$myname: gdb error generating index for $file" 1>&2 |
| exit $status |
| } |
| |
| # In some situations gdb can exit without creating an index. This is |
| # not an error. |
| # E.g., if $file is stripped. This behaviour is akin to stripping an |
| # already stripped binary, it's a no-op. |
| status=0 |
| |
| if test -f "$index"; then |
| $OBJCOPY --add-section .gdb_index="$index" \ |
| --set-section-flags .gdb_index=readonly "$file" "$file" |
| status=$? |
| else |
| echo "$myname: No index was created for $file" 1>&2 |
| echo "$myname: [Was there no debuginfo? Was there already an index?]" 1>&2 |
| fi |
| |
| exit $status |