You'll need GDB compiled with python support, and the pdbinject
package:
easy_install pdbinject
The default GDB does not come compiled with Python support.
Homebrew fixes that:
brew install gdb
Note
There's more steps, I gave up on figuring out how to make it work.
$ python example/loop.py &
Process running with PID 6319
$ sudo pdbinject 6319
Remote PDB has been configured on port 4444
nc 127.0.0.1 4444
$ nc 127.0.0.1 4444
--Return--
> /home/ubuntu/pdbinject/pdbinject/debugger.py(16)run()->None
-> debugger.set_trace()
Now have some fun:
from guppy import hpy
hp = hpy()
heap = hp.heap()
heap.get_rp()
To print the stacktrace across all the threads:
import sys, traceback
for thread_id, stack in sys._current_frames().iteritems(): print 'Thread id: %s\n%s' % (thread_id, ''.join(traceback.format_stack(stack)))