How to rename dynamic symbols in arm elf .so file?

Question

I need to modify a so inside an Android APK. The task is to rename the dynamic symbols in side the so (which is the function name).

For example, change from Java_co

Answer 1

Have a look at LIEF, but try to keep them the same length

native_lib = 'my_native_lib.so'
lib = lief.parse(native_lib)
for x in lib.exported_symbols:
    if 'Java' in x.name:
        x.name = x.name.replace('Java_com_example_abc', 'Java_com_antani_zzz')
lib.write(native_lib)  # overwrite