| #!/bin/bash |
| |
| # |
| # Copyright (C) 2011 Google Inc. All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| # This script checks a WebCore static library for potential Objective-C |
| # class name collisions with the system's copy of the WebCore framework. |
| # See the postbuild action that calls it from ../WebCore.gyp for details. |
| |
| set -e |
| set -o pipefail |
| |
| if [[ $# -ne 2 ]]; then |
| echo "usage: ${0} class_whitelist_pattern category_whitelist_pattern" >& 2 |
| exit 1 |
| fi |
| |
| lib="${BUILT_PRODUCTS_DIR}/${FULL_PRODUCT_NAME}" |
| nm_pattern='[atsATS] ([+-]\[|\.objc_class_name_)' |
| |
| class_whitelist_pattern="${1}" |
| category_whitelist_pattern="${2}" |
| |
| # Send nm's stderr in the pipeline to /dev/null to avoid spewing |
| # "nm: no name list" messages. This means that if the pipelined nm fails, there |
| # won't be any output, so if the entire assignment fails, run nm again to get |
| # some output. |
| violators=$(nm -p "${lib}" 2> /dev/null | \ |
| (grep -E "${nm_pattern}" || true) | \ |
| (grep -Ev "${nm_pattern}(${class_whitelist_pattern})" || true) | \ |
| (grep -Ev "\((${category_whitelist_pattern})\)" || true)) || nm -p "${lib}" |
| |
| if [[ -z "${violators}" ]]; then |
| # An empty list means that everything's clean. |
| exit 0 |
| fi |
| |
| cat << __EOF__ >&2 |
| These Objective-C symbols may clash with those provided by the system's own |
| WebCore framework: |
| ${violators} |
| |
| These symbols were found in: |
| ${lib} |
| |
| This should be corrected by adding the appropriate definitions to |
| $(dirname ${0})/../WebCore.gyp |
| or by updating the whitelist in |
| ${0} |
| __EOF__ |
| |
| exit 1 |