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| author | mark@chromium.org <mark@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-11-19 20:55:49 +0000 |
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| committer | mark@chromium.org <mark@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-11-19 20:55:49 +0000 |
| commit | 3115bf87e34f5c40c93eb9349cda1a040f38573b (patch) | |
| tree | 4d0d143e5bde078ea1bf4bb78d37b72077a0fc88 /chrome/tools | |
| parent | 08f0a19132581e09be48b13933ec2a90813fd052 (diff) | |
| download | chromium_src-3115bf87e34f5c40c93eb9349cda1a040f38573b.zip chromium_src-3115bf87e34f5c40c93eb9349cda1a040f38573b.tar.gz chromium_src-3115bf87e34f5c40c93eb9349cda1a040f38573b.tar.bz2 | |
Add an .order file to ensure that no global text symbol winds up at an address
higher than _ChromeMain, so that CrashReporter stacks and other symbolized
stacks aren't so confusing. Add a tool to verify that nothing violates this
ordering requirement.
BUG=28257
TEST=verify_order, which is part of the build
Review URL: http://codereview.chromium.org/414003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@32539 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/tools')
| -rwxr-xr-x | chrome/tools/build/mac/verify_order | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/chrome/tools/build/mac/verify_order b/chrome/tools/build/mac/verify_order new file mode 100755 index 0000000..3d5d644 --- /dev/null +++ b/chrome/tools/build/mac/verify_order @@ -0,0 +1,43 @@ +#!/bin/bash + +# Copyright (c) 2009 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. + +# Verifies that no global text symbols are present in a Mach-O file +# (MACH_O_FILE) at an address higher than the address of a specific symbol +# (LAST_SYMBOL). If LAST_SYMBOL is not found in MACH_O_FILE or if symbols +# are present with addresses higher than LAST_SYMBOL's address, an error +# message is printed to stderr, and the script will exit nonzero. +# +# This script can be used to verify that all of the global text symbols in +# a Mach-O file are accounted for in an order file. + +if [ ${#} -ne 2 ] ; then + echo "usage: ${0} LAST_SYMBOL MACH_O_FILE" >& 2 + exit 1 +fi + +LAST_SYMBOL=${1} +MACH_O_FILE=${2} + +SYMBOLS=$(nm -fgjn -s __TEXT __text "${MACH_O_FILE}") +if [ ${?} -ne 0 ] || [ -z "${SYMBOLS}" ] ; then + echo "${0}: no symbols in ${MACH_O_FILE}" >& 2 + exit 1 +fi + +LAST_SYMBOLS=$(grep -A 100 -Fx "${LAST_SYMBOL}" <<< "${SYMBOLS}") +if [ ${?} -ne 0 ] || [ -z "${LAST_SYMBOLS}" ] ; then + echo "${0}: symbol ${LAST_SYMBOL} not found in ${MACH_O_FILE}" >& 2 + exit 1 +fi + +UNORDERED_SYMBOLS=$(grep -Fvx "${LAST_SYMBOL}" <<< "${LAST_SYMBOLS}") +if [ ${?} -eq 0 ] || [ -n "${UNORDERED_SYMBOLS}" ] ; then + echo "${0}: unordered symbols in ${MACH_O_FILE}:" >& 2 + echo "${UNORDERED_SYMBOLS}" >& 2 + exit 1 +fi + +exit 0 |