disassembler.py 文件源码

def get_ins_xref(self, ins, addr):
        """
        An instruction may reference other instruction.
        Example: SETUP_EXCEPT exc_handler
        the exception handler is the xref.
        """
        xref_ins = (dis.opmap[x] for x in ('SETUP_LOOP', 'SETUP_EXCEPT', 'SETUP_FINALLY', 'SETUP_WITH'))
        if ins.opcode in xref_ins:
            return addr + ins.size + ins.arg
        else:
            return None