gdb-vaddress-to-mapping

vaddress-to-mapping.py

import gdb
import re

# usage:
# (gdb) vaddr-to-mapping 0x7ffff7e15100

class VaddressToMapping(gdb.Command):
    def __init__ (self):
        super(VaddressToMapping, self).__init__("vaddr-to-mapping", gdb.COMMAND_USER)

    def invoke(self, arg, from_tty):
        if arg.startswith("0x"):
            addr = int(arg, 16)
        else:
            addr = int(arg)
        lines = gdb.execute("info proc mappings", to_string=True)
        found = False
        for line in lines.split("\n"):
            groups = re.findall(r"(0x[0-9a-f]+)", line)
            if groups:
                groups = list(map(lambda x: int(x, 16), groups))
                base_addr = groups[0]
                end_addr = groups[1]
                size = groups[2]
                offset = groups[3]
                diff = end_addr - addr
                if diff > 0 and diff <= size:
                    found = True
                    print(line)
                    break

        if not found:
            print("Not found")
        # print("Hello, World!", address)

VaddressToMapping()