1 #!/bin/bash 2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 # 6 # Saves the gdb index for a given binary and its shared library dependencies. 7 8 set -e 9 10 if [[ ! $# == 1 ]]; then 11 echo "Usage: $0 path-to-binary" 12 exit 1 13 fi 14 15 FILENAME="$1" 16 if [[ ! -f "$FILENAME" ]]; then 17 echo "Path $FILENAME does not exist." 18 exit 1 19 fi 20 21 # We're good to go! Create temp directory for index files. 22 DIRECTORY=$(mktemp -d) 23 echo "Made temp directory $DIRECTORY." 24 25 # Always remove directory on exit. 26 trap "{ echo -n Removing temp directory $DIRECTORY...; 27 rm -rf $DIRECTORY; echo done; }" EXIT 28 29 # Grab all the chromium shared library files. 30 so_files=$(ldd "$FILENAME" 2>/dev/null \ 31 | grep $(dirname "$FILENAME") \ 32 | sed "s/.*[ \t]\(.*\) (.*/\1/") 33 34 # Add index to binary and the shared library dependencies. 35 for file in "$FILENAME" $so_files; do 36 basename=$(basename "$file") 37 echo -n "Adding index to $basename..." 38 readelf_out=$(readelf -S "$file") 39 if [[ $readelf_out =~ "gdb_index" ]]; then 40 echo "already contains index. Skipped." 41 else 42 gdb -batch "$file" -ex "save gdb-index $DIRECTORY" -ex "quit" 43 objcopy --add-section .gdb_index="$DIRECTORY"/$basename.gdb-index \ 44 --set-section-flags .gdb_index=readonly "$file" "$file" 45 echo "done." 46 fi 47 done 48
