#!/bin/bash -e
# Copyright 2019 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Script to extract and repack an archive with specified object files.
# Inputs:
# Environment:
# CLANG_BIN: path to the clang bin directory
# Arguments:
# -i ${file}: input file
# -o ${file}: output file
# -d ${file}: deps file
set -o pipefail
OPTSTRING=d:i:o:
usage() {
cat <<EOF
Usage: archive_repack.sh [options] <objects to repack>
OPTIONS:
-i <file>: input file
-o <file>: output file
-d <file>: deps file
EOF
exit
1
}
while getopts $OPTSTRING opt;
do
case
"$opt" in
d) depsfile=
"${OPTARG}" ;;
i) infile=
"${OPTARG}" ;;
o) outfile=
"${OPTARG}" ;;
?) usage ;;
esac
done
shift
"$(($OPTIND -1))"
if [ -z
"${infile}" ];
then
echo "-i argument is required"
usage
fi
if [ -z
"${outfile}" ];
then
echo "-o argument is required"
usage
fi
# Produce deps file
if [ ! -z
"${depsfile}" ];
then
cat <<EOF >
"${depsfile}"
${outfile}: ${infile} ${CLANG_BIN}/llvm-ar
EOF
fi
# Get absolute path for outfile and llvm-ar.
LLVM_AR=
"${PWD}/${CLANG_BIN}/llvm-ar"
if [[
"$outfile" != /* ]];
then
outfile=
"${PWD}/${outfile}"
fi
tempdir=
"${outfile}.tmp"
# Clean up any previous temporary files.
rm -f
"${outfile}"
rm -rf
"${tempdir}"
# Do repack
# We have to change working directory since ar only allows extracting to CWD.
mkdir
"${tempdir}"
cp "${infile}" "${tempdir}/archive"
cd
"${tempdir}"
"${LLVM_AR}" x
"archive"
"${LLVM_AR}" --format=gnu qc
"${outfile}" "$@"
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(vorverarbeitet am 2026-11-04)
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