1 #!/bin/bash 2 # 3 # Copyright (C) 2009 The Android Open Source Project 4 # 5 # Licensed under the Apache License, Version 2.0 (the "License"); 6 # you may not use this file except in compliance with the License. 7 # You may obtain a copy of the License at 8 # 9 # http://www.apache.org/licenses/LICENSE-2.0 10 # 11 # Unless required by applicable law or agreed to in writing, software 12 # distributed under the License is distributed on an "AS IS" BASIS, 13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 # See the License for the specific language governing permissions and 15 # limitations under the License. 16 17 # 18 # This tool checks the integrity of the optimized dex files on a single 19 # Android device connected to your computer. 20 # 21 # Brief HOW-TO: 22 # 23 # 1. Disconnect all but one device from USB. 24 # 2. Set up a standard shell environment (envsetup.sh, lunch, etc.). 25 # 3. Run "adb root" if necessary to ensure read permission on 26 # /data/dalvik-cache. If in doubt, run the command. Power users may 27 # also use "su" followed by "chmod 777 /data/dalvik-cache". 28 # 4. Run this script, e.g. from the build root, "dalvik/tools/dexcheck". 29 # 30 # If all of the dex files are okay, you will just see a series of 31 # lines written to your shell window naming each of the files. If 32 # there is a problem, though, you will see something like this: 33 # 34 # system@app (at] Maps.apk@classes.dex 35 # Failure in system@app (at] Maps.apk@classes.dex: ERROR: DEX parse failed 36 # 37 # When this happens, the log ("adb logcat") will generally have at 38 # least a little more information about the dex level of the problem. 39 # However, any error at all usually indicates some form of lower level 40 # filesystem or filesystem cache corruption. 41 # 42 43 # Get the list of files. Use "sed" to drop the trailing carriage return. 44 files=`adb shell "cd /data/dalvik-cache; echo *" | sed -e s/.$//` 45 if [ "$files" = "*" ]; then 46 echo 'ERROR: commands must run as root on device (try "adb root" first?)' 47 exit 1 48 fi 49 50 failure=0 51 52 # Check each file in turn. This is much faster with "dexdump -c", but that 53 # flag was not available in 1.6 and earlier. 54 # 55 # The dexdump found in older builds does not stop on checksum failures and 56 # will likely crash. 57 for file in $files; do 58 echo $file 59 errout=`adb shell "dexdump /data/dalvik-cache/$file > dev/null"` 60 errcount=`echo $errout | wc -w` > /dev/null 61 if [ $errcount != "0" ]; then 62 echo " Failure in $file: $errout" 63 failure=1 64 fi 65 done 66 67 exit $failure 68
