Files
linux-kernel-module-cheat/rungdb-user
Ciro Santilli 56738a1c70 lkmc v2-rc
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it
breaks bisects at several points. All bugs will not bisect to this
humongous change.

It all started with a conversion of the Bash scripts to Python, mainly
because I couldn't stand not being able to properly use --options for
run which has a million options.

Then since that required a full testing, I decided to do all the
refactorings that I had in mind at once, and so I did and it became
v2-rc.

This is the largest patch I have ever done! OMG a few weeks of extra time.
I'm never writing a Bash script for anything that starts getting big again.

Some of the features are:

* separate build-qemu and build-gem5 commands
* common: convert scripts to python. Add --option for everything
* rename build to build-buildroot now that we are splitting all the build
  commands, Linux kernel to follow
* move all git submodules to submodules/ and all buildroot packages to
  packages/
* refactor the out/ structure. Keep projects on toplevel, because guest
  projects separate archs and host ones don't, making a toplevel arch wrong
* do-release: rename to just release
  https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it
* run: add --terminal and explain gem5 pdb
* just track the lvimrc
* store CLI kernel config fragment inside buildlroot to avoid conflicts
* gem5: document m5 initparam
* readme: make a bunch of things awesomer
* readme: fix broken refs
* parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c
  Could not fetch otherwise.
* gem5: M5_OVERRIDE_PY_SOURCE
2018-09-14 07:42:31 +01:00

36 lines
1.1 KiB
Python
Executable File

#!/usr/bin/env python3
import imp
import os
import sys
import common
rungdb = imp.load_source('rungdb', os.path.join(common.root_dir, 'rungdb'))
parser = common.get_argparse(argparse_args={
'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
'''
})
parser.add_argument(
'executable',
help='Path to the executable to be debugged relative to the Buildroot build directory.'
)
parser.add_argument(
'break',
default=None,
help='Break at this point, e.g. main.',
nargs='?'
)
args = common.setup(parser)
addr = common.get_elf_entry(os.path.join(common.build_dir, args.executable))
extra_args = {}
extra_args['before'] = '-ex \"add-symbol-file {} {}\"'.format(args.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.
extra_args['no_lxsymbols'] = True
sys.exit(rungdb.main(args, extra_args))