gdb script that provide better memory map information than "info proc map"

maps.py

# Demo:
# (gdb) starti
# Starting program: /usr/bin/id 
# Program stopped.
# 0x00007ffff7fd4100 in _start () from /lib64/ld-linux-x86-64.so.2
# (gdb) maps
# 555555554000-555555556000 r--p 00000000 fe:02 3945170                    /usr/bin/id
# 555555556000-55555555b000 r-xp 00002000 fe:02 3945170                    /usr/bin/id
# 55555555b000-55555555e000 r--p 00007000 fe:02 3945170                    /usr/bin/id
# 55555555e000-555555560000 rw-p 00009000 fe:02 3945170                    /usr/bin/id
# 7ffff7fce000-7ffff7fd1000 r--p 00000000 00:00 0                          [vvar]
# 7ffff7fd1000-7ffff7fd2000 r-xp 00000000 00:00 0                          [vdso]
# 7ffff7fd2000-7ffff7fd4000 r--p 00000000 fe:02 3935544                    /usr/lib/ld-2.29.so
# 7ffff7fd4000-7ffff7ff3000 r-xp 00002000 fe:02 3935544                    /usr/lib/ld-2.29.so
# 7ffff7ff3000-7ffff7ffb000 r--p 00021000 fe:02 3935544                    /usr/lib/ld-2.29.so
# 7ffff7ffc000-7ffff7ffe000 rw-p 00029000 fe:02 3935544                    /usr/lib/ld-2.29.so
# 7ffff7ffe000-7ffff7fff000 rw-p 00000000 00:00 0
# 7ffffffde000-7ffffffff000 rw-p 00000000 00:00 0                          [stack]
# (gdb) p $rsp
# $1 = (void *) 0x7fffffffe770
# (gdb) maps 0x7fffffffe770
# 7ffffffde000-7ffffffff000 rw-p 00000000 00:00 0                          [stack]
# (gdb) p $rip
# $2 = (void (*)()) 0x7ffff7fd4100 <_start>
# (gdb) maps 0x7ffff7fd4100
# 7ffff7fd4000-7ffff7ff3000 r-xp 00002000 fe:02 3935544                    /usr/lib/ld-2.29.so
# (gdb) maps 0x7fffffffe770 0x7ffff7fd4100
# 7ffffffde000-7ffffffff000 rw-p 00000000 00:00 0                          [stack]
# 7ffff7fd4000-7ffff7ff3000 r-xp 00002000 fe:02 3935544                    /usr/lib/ld-2.29.so

import gdb
import re

class Maps(gdb.Command):
    def __init__(self):
        super(Maps, self).__init__("maps", gdb.COMMAND_STATUS)

    def invoke(self, arg, from_tty):
        pid = gdb.selected_inferior().pid

        if not pid:
            return

        if(len(arg)):
            nums = self.convert(arg)
            self.map_lookup(pid, nums)
        else:
            [print(line) for line in self.maps(pid)]

    def convert(self, arg):
        strnum = arg.split(' ')
        nums = []

        for str in strnum:
            try:
                nums.append(int(str, 0))
            except ValueError:
                print(str+' is an invalid number ...')

        return nums

    def map_lookup(self, pid, nums):
        lines = self.maps(pid)
        ranges = []

        for line in lines:
            ranges.append([int(i, 16) for i in re.match(r'^(\w+)-(\w+)', line).groups()])

        for num in nums:
            res = False

            for i in range(0, len(lines)):
                if ranges[i][0] <= num < ranges[i][1]:
                    res = lines[i]
                    break

            print(res if res else "address {} not found".format(hex(num)))

    def maps(self, pid):
        with open('/proc/{}/maps'.format(pid)) as f:
            lines = f.readlines()

        return [s.strip() for s in lines]

Maps()