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| 1 #!/bin/bash | |
| 2 | |
| 3 # | |
| 4 # Copyright (C) 2011 Google Inc. All rights reserved. | |
| 5 # | |
| 6 # Redistribution and use in source and binary forms, with or without | |
| 7 # modification, are permitted provided that the following conditions are | |
| 8 # met: | |
| 9 # | |
| 10 # * Redistributions of source code must retain the above copyright | |
| 11 # notice, this list of conditions and the following disclaimer. | |
| 12 # * Redistributions in binary form must reproduce the above | |
| 13 # copyright notice, this list of conditions and the following disclaimer | |
| 14 # in the documentation and/or other materials provided with the | |
| 15 # distribution. | |
| 16 # * Neither the name of Google Inc. nor the names of its | |
| 17 # contributors may be used to endorse or promote products derived from | |
| 18 # this software without specific prior written permission. | |
| 19 # | |
| 20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 # | |
| 32 | |
| 33 # This script checks a WebCore static library for potential Objective-C | |
| 34 # class name collisions with the system's copy of the WebCore framework. | |
| 35 # See the postbuild action that calls it from ../WebCore.gyp for details. | |
| 36 | |
| 37 set -e | |
| 38 set -o pipefail | |
| 39 | |
| 40 if [[ $# -ne 2 ]]; then | |
| 41 echo "usage: ${0} class_whitelist_pattern category_whitelist_pattern" >& 2 | |
| 42 exit 1 | |
| 43 fi | |
| 44 | |
| 45 lib="${BUILT_PRODUCTS_DIR}/${FULL_PRODUCT_NAME}" | |
| 46 nm_pattern='[atsATS] ([+-]\[|\.objc_class_name_)' | |
| 47 | |
| 48 class_whitelist_pattern="${1}" | |
| 49 category_whitelist_pattern="${2}" | |
| 50 | |
| 51 # Send nm's stderr in the pipeline to /dev/null to avoid spewing | |
| 52 # "nm: no name list" messages. This means that if the pipelined nm fails, there | |
| 53 # won't be any output, so if the entire assignment fails, run nm again to get | |
| 54 # some output. | |
| 55 violators=$(nm -p "${lib}" 2> /dev/null | \ | |
| 56 (grep -E "${nm_pattern}" || true) | \ | |
| 57 (grep -Ev "${nm_pattern}(${class_whitelist_pattern})" || true) | \ | |
| 58 (grep -Ev "\((${category_whitelist_pattern})\)" || true)) || nm -p "${lib}" | |
| 59 | |
| 60 if [[ -z "${violators}" ]]; then | |
| 61 # An empty list means that everything's clean. | |
| 62 exit 0 | |
| 63 fi | |
| 64 | |
| 65 cat << __EOF__ >&2 | |
| 66 These Objective-C symbols may clash with those provided by the system's own | |
| 67 WebCore framework: | |
| 68 ${violators} | |
| 69 | |
| 70 These symbols were found in: | |
| 71 ${lib} | |
| 72 | |
| 73 This should be corrected by adding the appropriate definitions to | |
| 74 $(dirname ${0})/../WebCore.gyp | |
| 75 or by updating the whitelist in | |
| 76 ${0} | |
| 77 __EOF__ | |
| 78 | |
| 79 exit 1 | |
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