[gui] Error generating smali code: Dex version 040 is not supported

[privacyguy123]

Issue details

Sorry I am not well versed in this stuff enough to understand this error output - does jadx not support this version of Dex?

Jadx version

1.4.6

Java version

1.8.0_211

OS

• Windows
• Linux
• macOS

[jpstotz]

According to the Android dex format help site version 39 should be the latest version. Where did you got a DEX file with version 40?

[skylot]

version 39 should be the latest version

Also, jadx do not check dex file version, and looks like error comes from smali library. So I am more curious of your usage pattern and how do you get this error 🙂

[privacyguy123]

Dex files were compiled with newest smali fatjars from Google repo ...

[MrIkso]

According to the Android dex format help site version 39 should be the latest version. Where did you got a DEX file with version 40?

https://source.android.com/docs/core/runtime/dex-format#simplename

See it for 041
https://android.googlesource.com/platform/external/smali/+/c360d663ab4a077493037923ddf3f8bf59f30974%5E%21/#F2

It for 040
https://android.googlesource.com/platform/art/+/master/libdexfile/dex/dex_file.h#301
@skylot it here all dexopcodes for testing
https://cs.android.com/android/platform/superproject/main/+/main:dalvik/dx/tests/
https://android.googlesource.com/platform/art/+/refs/heads/main/test/

[skylot]

@MrIkso thanks for links 👍
Changes summary:

• Dex format versions:
  • 40: allows spaces (Unicode ones) in class names 🤣
  • 41: add support of container to store several dex files in one physical file
• Smali libs from Google starting at 3.0.5 supports up to version 41 (read-only), and starting to write version 40 for api 29-34 (previously was 39 🤔), 41 for 35
• Latest unstable jadx version should support 40 version without issues (@privacyguy123 please check)
• Support for 41 version in jadx shouldn't be hard, but still lots of changes need to be done.
  I will create new issue for that.