Extracting .dex files from Android ART .oat/.odex files

How it works?

DEX files are embeded in Android ART .oat/.odex files. oat2dexes looks for DEX magic "dex\n035\0".

How to use?

$ file file.odex
file.odex: ELF 32-bit LSB shared object, ARM, version 1 (GNU/Linux), dynamically linked, stripped
$ gcc -o oat2dexes -Wall oat2dexes.c
$ ./oat2dexes file.odex
Writing 12345 bytes to dex01.dex
$ java -jar baksmali.jar -o outdir dex01.dex