rop.py 文件源码

def _addresses_to_check_with_caching(self, show_progress=True):
        num_addrs = len(list(self._addresses_to_check()))
        widgets = ['ROP: ', progressbar.Percentage(), ' ',
                   progressbar.Bar(marker=progressbar.RotatingMarker()),
                   ' ', progressbar.ETA(), ' ', progressbar.FileTransferSpeed()]
        progress = progressbar.ProgressBar(widgets=widgets, maxval=num_addrs)
        if show_progress:
            progress.start()
        self._cache = dict()
        seen = dict()
        for i, a in enumerate(self._addresses_to_check()):
            if show_progress:
                progress.update(i)
            try:
                bl = self.project.factory.block(a)
                if bl.size > self._max_block_size:
                    continue
                block_data = bl.bytes
            except (SimEngineError, SimMemoryError):
                continue
            if block_data in seen:
                self._cache[seen[block_data]].add(a)
                continue
            else:
                if len(bl.vex.constant_jump_targets) == 0 and not self._block_has_ip_relative(a, bl):
                    seen[block_data] = a
                    self._cache[a] = set()
                yield a
        if show_progress:
            progress.finish()