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 80
