The Tor Browser / file comparison
comparison: media/webrtc/trunk/build/mac/verify_no_objc.sh
media/webrtc/trunk/build/mac/verify_no_objc.sh
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
equal
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| -1:000000000000 | 0:c17815165989 |
|---|---|
| 1 #!/bin/bash | |
| 2 | |
| 3 # Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 4 # Use of this source code is governed by a BSD-style license that can be | |
| 5 # found in the LICENSE file. | |
| 6 | |
| 7 # This script makes sure that no __OBJC,__image_info section appears in the | |
| 8 # executable file built by the Xcode target that runs the script. If such a | |
| 9 # section appears, the script prints an error message and exits nonzero. | |
| 10 # | |
| 11 # Why is this important? | |
| 12 # | |
| 13 # On 10.5, there's a bug in CFBundlePreflightExecutable that causes it to | |
| 14 # crash when operating in an executable that has not loaded at its default | |
| 15 # address (that is, when it's a position-independent executable with the | |
| 16 # MH_PIE bit set in its mach_header) and the executable has an | |
| 17 # __OBJC,__image_info section. See http://crbug.com/88697. | |
| 18 # | |
| 19 # Chrome's main executables don't use any Objective-C at all, and don't need | |
| 20 # to carry this section around. Not linking them as Objective-C when they | |
| 21 # don't need it anyway saves about 4kB in the linked executable, although most | |
| 22 # of that 4kB is just filled with zeroes. | |
| 23 # | |
| 24 # This script makes sure that nobody goofs and accidentally introduces these | |
| 25 # sections into the main executables. | |
| 26 | |
| 27 set -eu | |
| 28 | |
| 29 otool="${DEVELOPER_BIN_DIR:-/usr/bin}/otool" | |
| 30 executable="${BUILT_PRODUCTS_DIR}/${EXECUTABLE_PATH}" | |
| 31 | |
| 32 if "${otool}" -arch i386 -o "${executable}" | grep -q '^Contents.*section$'; \ | |
| 33 then | |
| 34 echo "${0}: ${executable} has an __OBJC,__image_info section" 2>&1 | |
| 35 exit 1 | |
| 36 fi | |
| 37 | |
| 38 if [[ ${PIPESTATUS[0]} -ne 0 ]]; then | |
| 39 echo "${0}: otool failed" 2>&1 | |
| 40 exit 1 | |
| 41 fi | |
| 42 | |
| 43 exit 0 |
