70 lines
1.9 KiB
Bash
Executable File
70 lines
1.9 KiB
Bash
Executable File
#! /bin/sh
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# Add a .gdb_index section to a file.
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# Copyright (C) 2010-2017 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This program assumes gdb and objcopy are in $PATH.
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# If not, or you want others, pass the following in the environment
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GDB=${GDB:=gdb}
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OBJCOPY=${OBJCOPY:=objcopy}
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myname="${0##*/}"
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if test $# != 1; then
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echo "usage: $myname FILE" 1>&2
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exit 1
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fi
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file="$1"
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if test ! -r "$file"; then
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echo "$myname: unable to access: $file" 1>&2
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exit 1
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fi
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dir="${file%/*}"
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test "$dir" = "$file" && dir="."
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index="${file}.gdb-index"
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rm -f $index
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# Ensure intermediate index file is removed when we exit.
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trap "rm -f $index" 0
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$GDB --batch -nx -iex 'set auto-load no' \
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-ex "file $file" -ex "save gdb-index $dir" || {
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# Just in case.
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status=$?
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echo "$myname: gdb error generating index for $file" 1>&2
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exit $status
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}
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# In some situations gdb can exit without creating an index. This is
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# not an error.
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# E.g., if $file is stripped. This behaviour is akin to stripping an
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# already stripped binary, it's a no-op.
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status=0
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if test -f "$index"; then
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$OBJCOPY --add-section .gdb_index="$index" \
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--set-section-flags .gdb_index=readonly "$file" "$file"
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status=$?
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else
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echo "$myname: No index was created for $file" 1>&2
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echo "$myname: [Was there no debuginfo? Was there already an index?]" 1>&2
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fi
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exit $status
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