Deobfuscation tool only able to manipulate 4 byte IDs HPROFs

[mfkasim]

Dears,
I just taken a heap dump using jmap tool,
and while i try to deobfuscate its content using the deobfuscation, it said that ids is 8 bytes
which not supported.
is there anyway to manipulate this file?

[erikandre]

Hi,

Thank you for trying out the deobfuscation tool! I'm sorry that it is not working for you, currently we only support 32-bit hprof files (that uses 4-bytes for all ids). The reason for this is that 32 bits is still the most common setup on Android.

Adding support for 64 bit hprof files will be quite a lot of work. I hope to do this in the future but due to other ongoing projects I don't think I can do it in the next could of months.

[mfkasim]

Hi erlkandre
Thanks for your reply.
As i was in bad need for deobfuscating 64bit Heap dump, i modified the Hprof tools lib & deobfuscator
to support 64bit ID. i converted the representation of the id from being hardcoded 4 byte Integer to a generic representation class which use array of bytes inside it. the good news is it working and tested with 64bit Heaps but still not tested with 32bit. once i finish it, i will send a pull request to you.
thanks for your help and fast reply

[erikandre]

Wow! That is awesome! Thank you very much :)

[mfkasim]

Dear erik,
I just pushed my changes to my forked repo.
it includes:

1. the 8 bytes ID
2. fixing issue when the heap dump only contains HEAP_DUMP tag.
3. adding support for deobfuscating method names and arguments in thread stack traces

[bending1]

hi,all

when i compile use "gradlew hprof-viewer:jarWithDependencies",i met some error in the pictrue.

who can help me? thank you!