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128 lines
3.1 KiB
128 lines
3.1 KiB
4 months ago
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#!/bin/bash -eu
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# Copyright 2017 Google Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Script to handle generating a .toc file from a .so file
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# Inputs:
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# Environment:
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# CLANG_BIN: path to the clang bin directory
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# Arguments:
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# -i ${file}: input file (required)
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# -o ${file}: output file (required)
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# -d ${file}: deps file (required)
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# --elf | --macho | --pe: format (required)
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OPTSTRING=d:i:o:-:
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usage() {
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cat <<EOF
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Usage: toc.sh [options] -i in-file -o out-file -d deps-file
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Options:
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EOF
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exit 1
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}
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do_elf() {
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("${CLANG_BIN}/llvm-readelf" -d "${infile}" | grep SONAME || echo "No SONAME for ${infile}") > "${outfile}.tmp"
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"${CLANG_BIN}/llvm-readelf" --dyn-syms "${infile}" | awk '{$2=""; $3=""; print}' >> "${outfile}.tmp"
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cat <<EOF > "${depsfile}"
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${outfile}: \\
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${CLANG_BIN}/llvm-readelf \\
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EOF
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}
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do_macho() {
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"${CLANG_BIN}/llvm-objdump" -p "${infile}" | grep LC_ID_DYLIB -A 5 > "${outfile}.tmp"
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"${CLANG_BIN}/llvm-nm" -gP "${infile}" | cut -f1-2 -d" " | (grep -v 'U$' >> "${outfile}.tmp" || true)
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cat <<EOF > "${depsfile}"
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${outfile}: \\
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${CLANG_BIN}/llvm-objdump \\
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${CLANG_BIN}/llvm-nm \\
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EOF
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}
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do_pe() {
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"${CLANG_BIN}/llvm-objdump" -x "${infile}" | grep "^Name" | cut -f3 -d" " > "${outfile}.tmp"
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"${CLANG_BIN}/llvm-nm" -gP "${infile}" | cut -f1-2 -d" " >> "${outfile}.tmp"
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cat <<EOF > "${depsfile}"
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${outfile}: \\
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${CLANG_BIN}/llvm-objdump \\
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${CLANG_BIN}/llvm-nm \\
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EOF
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}
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while getopts $OPTSTRING opt; do
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case "$opt" in
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d) depsfile="${OPTARG}" ;;
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i) infile="${OPTARG}" ;;
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o) outfile="${OPTARG}" ;;
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-)
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case "${OPTARG}" in
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elf) elf=1 ;;
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macho) macho=1 ;;
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pe) pe=1 ;;
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*) echo "Unknown option --${OPTARG}"; usage ;;
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esac;;
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?) usage ;;
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*) echo "'${opt}' '${OPTARG}'"
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esac
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done
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if [ -z "${infile:-}" ]; then
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echo "-i argument is required"
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usage
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fi
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if [ -z "${outfile:-}" ]; then
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echo "-o argument is required"
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usage
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fi
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if [ -z "${depsfile:-}" ]; then
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echo "-d argument is required"
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usage
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fi
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if [ -z "${CLANG_BIN:-}" ]; then
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echo "CLANG_BIN environment variable must be set"
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usage
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fi
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rm -f "${outfile}.tmp"
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cat <<EOF > "${depsfile}"
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${outfile}: \\
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${CLANG_BIN}/llvm-readelf \\
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EOF
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if [ -n "${elf:-}" ]; then
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do_elf
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elif [ -n "${macho:-}" ]; then
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do_macho
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elif [ -n "${pe:-}" ]; then
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do_pe
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else
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echo "--elf, --macho or --pe is required"; usage
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fi
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if cmp "${outfile}" "${outfile}.tmp" > /dev/null 2> /dev/null; then
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rm -f "${outfile}.tmp"
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else
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mv -f "${outfile}.tmp" "${outfile}"
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fi
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