You can also attach gdb to a running (python) process .. but the interpreter needs to have the symbol table (eg. not stripped).
I gave a presentation few years back on this exact topic (sorry for the quality, I was very in-experienced). https://skillsmatter.com/skillscasts/4313-intro-to-python-debug I hope this helps. PS> I'm working on a tiny "relocatable" python interpreter + toolchain using docker (sort of miniconda but for plain python) https://bitbucket.org/cav71/builder3/src/master that might be useful. On Mon, 30 Mar 2020 at 20:07, Rhodri James <rho...@kynesim.co.uk> wrote: > On 30/03/2020 23:20, Leandro Müller wrote: > > Hi > > Are there any away to debug C module during python debug? > > In a word, gdb. > > I've been doing this quite a lot lately. The trick is to start Python > up under gdb, set a pending breakpoint in your C module, then carry on > as normal. For example: > > > rhodri@Wildebeest:~/hub_module$ gdb python3 > GNU gdb (Ubuntu 8.1-0ubuntu3.2) 8.1.0.20180409-git > Copyright (C) 2018 Free Software Foundation, Inc. > > [...large amounts of boilerplate omitted for brevity...] > > Reading symbols from python3...Reading symbols from > > /usr/lib/debug/.build-id/28/7763e881de67a59b31b452dd0161047f7c0135.debug...done. > done. > (gdb) b Hub_new > Function "Hub_new" not defined. > Make breakpoint pending on future shared library load? (y or [n]) y > Breakpoint 1 (Hub_init) pending. > (gdb) run > Starting program: /home/rhodri/Work/Lego/hub_module/hat_env/bin/python3 > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > Python 3.6.9 (default, Nov 7 2019, 10:44:02) > [GCC 8.3.0] on linux > Type "help", "copyright", "credits" or "license" for more information. > >>> from hub import hub > > Breakpoint 1, Hub_new (type=0x7ffff6236340 <HubType>, args=(), kwds=0x0) > at src/hubmodule.c:164 > 164 HubObject *self = (HubObject *)type->tp_alloc(type, 0); > (gdb) > > > ...and off you go! > > > -- > Rhodri James *-* Kynesim Ltd > _______________________________________________ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/4JVUDRD5YZVVZ4FWC3BYN3RJDXBNBTIF/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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