Method do_invoke

tools/gef.py:5645–5699

(self, argv: List[str])

    @only_if_gdb_running
    def do_invoke(self, argv: List[str]) -> None:
        if len(argv) != 2:
            self.usage()
            return

        haystack = argv[0]
        needle = argv[1]

        info(f"Searching for addresses in '{Color.yellowify(haystack)}' "
             f"that point to '{Color.yellowify(needle)}'")

        if haystack == "binary":
            haystack = get_filepath()

        if needle == "binary":
            needle = get_filepath()

        needle_sections = []
        haystack_sections = []

        if "0x" in haystack:
            start, end = parse_string_range(haystack)
            haystack_sections.append((start, end, ""))

        if "0x" in needle:
            start, end = parse_string_range(needle)
            needle_sections.append((start, end))

        for sect in gef.memory.maps:
            if haystack in sect.path:
                haystack_sections.append((sect.page_start, sect.page_end, os.path.basename(sect.path)))
            if needle in sect.path:
                needle_sections.append((sect.page_start, sect.page_end))

        step = gef.arch.ptrsize
        unpack = u32 if step == 4 else u64

        for hstart, hend, hname in haystack_sections:
            try:
                mem = gef.memory.read(hstart, hend - hstart)
            except gdb.MemoryError:
                continue

            for i in range(0, len(mem), step):
                target = unpack(mem[i:i+step])
                for nstart, nend in needle_sections:
                    if target >= nstart and target < nend:
                        deref = DereferenceCommand.pprint_dereferenced(hstart, int(i / step))
                        if hname != "":
                            name = Color.colorify(hname, "yellow")
                            gef_print(f"{name}: {deref}")
                        else:
                            gef_print(f" {deref}")

        return


@register