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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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