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#!/bin/bash
# Copyright 2023 Google LLC
#
# 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 LLC 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.
# Finds the dyld_shared_cache on a system, extracts it, and dumps the symbols
# in Breakpad format to the directory passed as the first argument
# The script must be in the same directory as `dump_syms`,
# `upload_system_symbols` and `dsc_extractor` binaries.
# Exits with 0 if all supported architectures for this OS version were found and
# dumped, and nonzero otherwise.
set -ex
if [[ $# -ne 1 ]]; then
echo "usage: $0 <destination_directory>" >& 2
exit 1
fi
destination_dir="$1"
dir="$(dirname "$0")"
dir="$(cd "${dir}"; pwd)"
major_version=$(sw_vers -productVersion | cut -d . -f 1)
if [[ "${major_version}" -lt 13 ]]; then
dsc_directory="/System/Library/dyld"
else
dsc_directory="/System/Volumes/Preboot/Cryptexes/OS/System/Library/dyld"
fi
working_dir=$(mktemp -d)
mkdir "${destination_dir}"
trap 'rm -rf "${working_dir}" "${destination_dir}"' EXIT
architectures=(x86_64h)
missing_architectures=()
# macOS >= 13 on arm64 still has a x86_64 cache for Rosetta.
if [[ "${major_version}" -lt 13 ]] || [[ $(uname -p) == "arm" ]]; then
architectures+=( x86_64 )
fi
if [[ "${major_version}" -ge 11 ]]; then
architectures+=( arm64e )
fi
for arch in "${architectures[@]}"; do
cache="${dsc_directory}/dyld_shared_cache_${arch}"
if [[ ! -f "${cache}" ]]; then
missing_architectures+=("${arch}")
continue
fi
"${dir}/dsc_extractor" \
"${cache}" \
"${working_dir}/${arch}"
"${dir}/upload_system_symbols" \
--breakpad-tools="${dir}" \
--system-root="${working_dir}/${arch}" \
--dump-to="${destination_dir}"
done
if [[ "${#missing_architectures[@]}" -eq "${#architectures[@]}" ]]; then
echo "Couldn't locate dyld_shared_cache for any architectures" >& 2
echo "in ${dsc_directory}. Exiting." >& 2
exit 1
fi
rm -rf "${working_dir}"
# We have results now, so let's keep `destination_dir`.
trap '' EXIT
"${dir}/upload_system_symbols" \
--breakpad-tools="${dir}" \
--system-root=/ \
--dump-to="${destination_dir}"
set +x
echo
echo "Dumped!"
echo "To upload, run:"
echo
echo "'${dir}/upload_system_symbols'" \\
echo " --breakpad-tools='${dir}'" \\
echo " --api-key=<YOUR API KEY>" \\
echo " --upload-from='${destination_dir}'"
if [[ "${#missing_architectures[@]}" -gt 0 ]]; then
echo "dyld_shared_cache not found for architecture(s):" >& 2
echo " " "${missing_architectures[@]}" >& 2
echo "You'll need to get symbols for them elsewhere." >& 2
exit 1
fi
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