Add in support for components build.
BUG=none
TEST=tested locally on a chrome binary from a components build.
Review URL: https://chromiumcodereview.appspot.com/10700022
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@144835 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/build/gdb-add-index b/build/gdb-add-index
index 8dd72c4..4eadaec 100755
--- a/build/gdb-add-index
+++ b/build/gdb-add-index
@@ -1,7 +1,9 @@
#!/bin/sh
-# Add a .gdb_index section to a file.
-
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+#
# Copyright (C) 2010 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
@@ -16,15 +18,46 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-file="$1"
-dir="${file%/*}"
+# This is a modification of gdb-add-index that recursively adds an index
+# to the shared libraries dependencies from the same build.
-# We don't care if gdb gives an error.
-gdb -nx --batch-silent -ex "file $file" -ex "save gdb-index $dir"
+target="$1"
+target_dir="${target%/*}"
-if test -f "${file}.gdb-index"; then
- objcopy --add-section .gdb_index="${file}.gdb-index" --set-section-flags .gdb_index=readonly "$file" "$file"
- rm -f "${file}.gdb-index"
-fi
+OLDIFS=$IFS
+IFS=$'\n'
-exit 0
+shared_libraries=$(
+ ldd -d "$target" | grep "$target_dir" | cut -d '>' -f2 | cut -d ' ' -f2
+ )
+
+# This function is basically the RedHat's gdb-add-index script and is why
+# we have the FSF copyright above.
+function index_one_file {
+ local file="$1"
+ local dir="${file%/*}"
+
+ # We don't care if gdb gives an error.
+ gdb -nx --batch-silent -ex "file $file" -ex "save gdb-index $dir"
+
+ if test -f "${file}.gdb-index"; then
+ objcopy --add-section .gdb_index="${file}.gdb-index" --set-section-flags \
+ .gdb_index=readonly "$file" "$file"
+ rm -f "${file}.gdb-index"
+ fi
+}
+
+function maybe_index {
+ readelf -e "$1" | grep '.gdb_index' > /dev/null 2>&1
+ if [[ "$?" != 0 ]]; then
+ echo "Adding .gdb_index to $1"
+ index_one_file "$1"
+ else
+ echo "Skipping $1 (already has .gdb_index)"
+ fi
+}
+
+maybe_index "$target"
+for lib in $shared_libraries; do
+ maybe_index "$lib"
+done
