72 lines
2.7 KiB
Bash
72 lines
2.7 KiB
Bash
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#!/bin/bash -e
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# Copyright 2020 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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# Generates NDK API txt file used by Mainline modules. NDK APIs would have value
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# "UND" in Ndx column and have suffix "@LIB_NAME" in Name column.
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# For example, current line llvm-readelf output is:
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# 1: 00000000 0 FUNC GLOBAL DEFAULT UND dlopen@LIBC
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# After the parse function below "dlopen" would be write to the output file.
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printHelp() {
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echo "**************************** Usage Instructions ****************************"
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echo "This script is used to generate the Mainline modules used-by NDK symbols."
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echo ""
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echo "To run this script use: ./ndk_usedby_module.sh \$BINARY_IMAGE_DIRECTORY \$BINARY_LLVM_PATH \$OUTPUT_FILE_PATH"
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echo "For example: If all the module image files that you would like to run is under directory '/myModule' and output write to /myModule.txt then the command would be:"
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echo "./ndk_usedby_module.sh /myModule \$BINARY_LLVM_PATH /myModule.txt"
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}
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parseReadelfOutput() {
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while IFS= read -r line
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do
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if [[ $line = *FUNC*GLOBAL*UND*@* ]] ;
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then
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echo "$line" | sed -r 's/.*UND (.*)@.*/\1/g' >> "$2"
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fi
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done < "$1"
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echo "" >> "$2"
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}
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unzipJarAndApk() {
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tmpUnzippedDir="$1"/tmpUnzipped
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[[ -e "$tmpUnzippedDir" ]] && rm -rf "$tmpUnzippedDir"
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mkdir -p "$tmpUnzippedDir"
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find "$1" -name "*.jar" -exec unzip -o {} -d "$tmpUnzippedDir" \;
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find "$1" -name "*.apk" -exec unzip -o {} -d "$tmpUnzippedDir" \;
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find "$tmpUnzippedDir" -name "*.MF" -exec rm {} \;
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}
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lookForExecFile() {
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dir="$1"
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readelf="$2"
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find "$dir" -type f -name "*.so" -exec "$2" --dyn-symbols {} >> "$dir"/../tmpReadelf.txt \;
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find "$dir" -type f -perm /111 ! -name "*.so" -exec "$2" --dyn-symbols {} >> "$dir"/../tmpReadelf.txt \;
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}
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if [[ "$1" == "help" ]]
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then
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printHelp
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elif [[ "$#" -ne 3 ]]
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then
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echo "Wrong argument length. Expecting 3 argument representing image file directory, llvm-readelf tool path, output path."
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else
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unzipJarAndApk "$1"
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lookForExecFile "$1" "$2"
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tmpReadelfOutput="$1/../tmpReadelf.txt"
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[[ -e "$3" ]] && rm "$3"
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parseReadelfOutput "$tmpReadelfOutput" "$3"
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[[ -e "$tmpReadelfOutput" ]] && rm "$tmpReadelfOutput"
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rm -rf "$1/tmpUnzipped"
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fi
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