convert odex file to dex file

Question

I would like to covert odex file to dex file. I already pulled framework folder from system. I tried the following command,

java -jar baksmali-2.1.2.jar -d system/framework -x temp.odex

but error was produced - error message is like below.

 Error occurred while loading boot class path files. Aborting. org.jf.util.ExceptionWithContext: Cannot locate boot class path file /system/framework/core.jar
        at org.jf.dexlib2.analysis.ClassPath.loadClassPathEntry(ClassPath.java:277)
        at org.jf.dexlib2.analysis.ClassPath.fromClassPath(ClassPath.java:182)
        at org.jf.baksmali.baksmali.disassembleDexFile(baksmali.java:67)
        at org.jf.baksmali.main.run(main.java:113)
        at org.jf.baksmali.main.main(main.java:322)

I could not find "core.jar" in my android system framework folder.

Is this with dalvik? Or art? – JesusFreke Apr 28 '16 at 16:34 — JesusFreke, Apr 28 '16 at 16:34

score 5 · Answer 1 · answered Jun 09 '17 at 12:01

5

As of 2017-06-09 baksmali has changed. It works like this.

java -jar baksmali-2.2.0.jar d SamsungInCallUI.odex -o SamsungInCallUI

Then assemble the dex file.

java -jar smali-2.2.0.jar ass SamsungInCallUI -o SamsungInCallUI.dex

answered Jun 09 '17 at 12:01

kakopappa

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JesusFreke · Answer 2 · 2019-09-18T08:18:17.740

2

Try this instead:

java -jar baksmali-2.1.2.jar -c boot.oat -d system/framework/arm/boot.oat -x temp.odex

The specific path to your boot.oat might be different.

Also note that baksmali doesn't yet support deodexing the N preview images.

edited Sep 18 '19 at 08:18

answered Apr 29 '16 at 04:56

JesusFreke

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I tried it but another error was produced. Error occurred while loading boot class path files. Aborting. org.jf.util.ExceptionWithContext: Cannot locate boot class path file boot.oat at org.jf.dexlib2.analysis.ClassPath.loadClassPathEntry(ClassPath.java:2 77) at org.jf.dexlib2.analysis.ClassPath.fromClassPath(ClassPath.java:182) at org.jf.baksmali.baksmali.disassembleDexFile(baksmali.java:67) at org.jf.baksmali.main.run(main.java:113) at org.jf.baksmali.main.main(main.java:322) – 임선빈 Apr 29 '16 at 05:53
Like I said, the specific path to your boot.oat might be different. – JesusFreke Apr 29 '16 at 07:25

score 0 · Answer 3 · answered Apr 29 '16 at 06:07

0

This worked for me adb pull /system/framework/arm/boot.oat /tmp/framework/boot.oat Placing the apk and the odex file baksmali.jar -x -c boot.oat -d /tmp/framework APKname.odex -o APKname

answered Apr 29 '16 at 06:07

ñam

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I tried like this. java -jar baksmali-2.1.2.j ar -x -c boot.oat -d system/framework Test.odex -o Test.apk. but error was produced. Error occurred while loading boot class path files. Aborting. org.jf.util.ExceptionWithContext: Cannot locate boot class path file boot.oat at org.jf.dexlib2.analysis.ClassPath.loadClassPathEntry(ClassPath.java:2 77) at org.jf.dexlib2.analysis.ClassPath.fromClassPath(ClassPath.java:182) at org.jf.baksmali.baksmali.disassembleDexFile(baksmali.java:67) at org.jf.baksmali.main.run(main.java:113) at org.jf.baksmali.main.main(main.java:322) – 임선빈 Apr 29 '16 at 06:31
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Make sure the file boot.oat is in system/framework this should be the code `java -jar baksmali-2.1.2.jar -x -c boot.oat -d system/framework temp.odex -o temp` – ñam Apr 29 '16 at 07:00
I pulled boot.oat from system/framework and retry it. but same error was reproduced. – 임선빈 Apr 29 '16 at 08:01
`system/framework` is just the path of boot.oat on your PC, if you just pulled system/framework without moving boot.oat then the path would be `system/framework/arm`, you have to make sure this path leads to boot.oat on YOUR PC. Try this code `java -jar baksmali-2.1.2.jar -x -c boot.oat -d system/framework/arm temp.odex -o temp` – ñam Apr 29 '16 at 19:09
Thank you. I successed it for your help. – 임선빈 May 01 '16 at 04:11

score 0 · Answer 4 · edited Apr 13 '17 at 12:49

0

I'm not sure that I've understood correctly your question (kindly correct me if I'm wrong), but if you are trying to convert an odex to dex, I've already replied to a similar question here: https://reverseengineering.stackexchange.com/questions/12393/reverse-engineering-android-vendor-system-apps/12406#12406

Anyway, to my knowledge you have two chooice:

Follow this guide: http://www.naldotech.com/how-to-deodex-applications-on-android-5-0-lollipop/
Or use oat2dex as pointed out by the user who commented my answer on RE stackexchange.

Good luck

edited Apr 13 '17 at 12:49

Community

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answered Apr 29 '16 at 14:41

Luca D'Amico

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I tried this with oat2dex. but erro was produced. error message is "OAT Hader Checking..: FAIL! OAT2DEX File Check File FAIL". – 임선빈 May 01 '16 at 00:57

Tom Taylor · Answer 5 · 2019-05-23T10:38:29.767

This is an extension of @kakopappa's answer.

Get the latest version of baksmali and smali jar from here and put them in a folder and add this method to your .bash_profile file if you are a mac/linux user.

Get baksmali and smali jar in your computer and assign it to these variables from terminal.

BAKSMALI_JAR_PATH = ""

SMALI_JAR_PATH=""

Note : After editing the value should look something like BAKSMALI_JAR_PATH = "/Users/rabbit/tools/baksmali-2.2.7.jar" SMALI_JAR_PATH = "/Users/rabbit/tools/smali-2.2.7.jar"

Copy paste this script in your terminal and restart your terminal. This is a shortcut function which would get added to .bash_profile and you would get it handy.

    echo "BAKSMALI_JAR_PATH="$BAKSMALI_JAR_PATH >> ~/.bash_profile
    echo "SMALI_JAR_PATH="$SMALI_JAR_PATH >> ~/.bash_profile
    echo >>
    function odextodex() {
       odex_file_name=$1
       deassembled_file=${odex_file_name%.odex}
       java -jar $BAKSMALI_JAR_PATH d $1 -o $deassembled_file
       java -jar $SMALI_JAR_PATH ass $deassembled_file -o $deassembled_file.dex
       rm -rf $deassembled_file
    }

After doing this type odextodex filename.odex - you should see filename.jar file in your current directory.

convert odex file to dex file

5 Answers5