mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-25 11:11:35 +01:00
fe9c31f737
I'm sad no one reported qemu-monitor break, that one is kind of important. count.out arguments broke it as an init program, since the kernel adds trash parameters to every init. Is anyone using this repo, I wonder? Keep pushing, keep pushing. One day it gets good enough, and the whole world will see.
43 lines
1.5 KiB
Python
Executable File
43 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import os
|
|
|
|
import common
|
|
|
|
class Main(common.LkmcCliFunction):
|
|
def __init__(self):
|
|
super().__init__(
|
|
description='''GDB step debug guest userland processes without gdbserver.
|
|
|
|
More information at: https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-step-debug-userland-processes
|
|
'''
|
|
)
|
|
self.add_argument(
|
|
'executable',
|
|
help='Path to the executable to be debugged relative to the Buildroot build directory.'
|
|
)
|
|
self.add_argument(
|
|
'break_at',
|
|
default=None,
|
|
help='Break at this point, e.g. main.',
|
|
nargs='?'
|
|
)
|
|
|
|
def timed_main(self):
|
|
raise Exception("This is known to be broken, but fixing shouldn't be too hard! Keyword: get_argparse. See also: https://github.com/cirosantilli/linux-kernel-module-cheat/issues/63")
|
|
executable = self.env['image']
|
|
addr = self.get_elf_entry(os.path.join(self.env['buildroot_build_build_dir'], executable))
|
|
args = {}
|
|
args['before'] = '-ex \"add-symbol-file {} {}\"'.format(executable, hex(addr))
|
|
# Or else lx-symbols throws for arm:
|
|
# gdb.MemoryError: Cannot access memory at address 0xbf0040cc
|
|
# TODO understand better.
|
|
# Also, lx-symbols overrides the add-symbol-file commands.
|
|
args['no_lxsymbols'] = True
|
|
args['break_at'] = self.env['break_at']
|
|
rungdb = common.import_path_main('run-gdb')
|
|
return rungdb(**args)
|
|
|
|
if __name__ == '__main__':
|
|
Main().cli()
|