This script gets all the stub functions from the __objc_stubs section and renames them depending on the function it's calling

rename_objc_stubs_binja.py

# Example stub caller function that this binary ninja script renames would be like this:

# 1001dc540  int64_t sub_8282828818(void* arg1)
# 1001dc550      return _objc_msgSend(self: arg1, cmd: "_finalRestoreBlock") __tailcall

# Result will be:
# 1001dc540  int64_t objc_stub_caller__finalRestoreBlock(void* arg1)
# 1001dc550      return _objc_msgSend(self: arg1, cmd: "_finalRestoreBlock") __tailcall


from binaryninja import *

objc_stub_section = bv.get_section_by_name("__objc_stubs")

objc_stub_section_start = objc_stub_section.start
objc_stub_section_end = objc_stub_section.end

all_functions = bv.functions
functions_in_objc_stub_section = []

for f in all_functions:
    if f.start > objc_stub_section_start and f.start < objc_stub_section_end:
        functions_in_objc_stub_section.append(f)

for f in functions_in_objc_stub_section:
    insts = list(f.high_level_il.instructions)
    if len(insts) == 1:
        tokens = insts[0].tokens
        rename_function_name = f"objc_stub_caller_{tokens[6]}"
        f.name = rename_function_name

If someone knows a better way to get the second argument in binja please tell me since I need it.