Mixed Python/C debugging
Having tried comp.lang.python with no response, I turn here...
After at least ten years away from Python's run-time interpreter & byte code compiler, I'm getting set to familiarize myself with that again. This will, I think, entail debugging a mixed Python/C environment. I'm an Emacs user and am aware that GDB since 7.0 has support for debugging at the Python code level. Is Emacs+GDB my best bet? Are there any Python IDEs which support C-level breakpoints and debugging?
Thanks,
Skip
Python Tools for Visual Studio has supported mixed mode debugging for a while... I'm not sure if that support would have ever ended up in VS Code Python extension so it might be a windows only solution which might not help you much.
On Sun, Dec 1, 2019, 9:04 AM Skip Montanaro skip.montanaro@gmail.com wrote:
Having tried comp.lang.python with no response, I turn here...
After at least ten years away from Python's run-time interpreter & byte code compiler, I'm getting set to familiarize myself with that again. This will, I think, entail debugging a mixed Python/C environment. I'm an Emacs user and am aware that GDB since 7.0 has support for debugging at the Python code level. Is Emacs+GDB my best bet? Are there any Python IDEs which support C-level breakpoints and debugging?
Thanks,
Skip _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/L2KBZM64... Code of Conduct: http://python.org/psf/codeofconduct/
Your question is specifically about IDEs with support for mixed-mode debugging (with gdb), so I went looking for an answer:
https://wiki.python.org/moin/DebuggingWithGdb (which is not responsive and almost unreadable on a mobile device) links to https://fedoraproject.org/wiki/Features/EasierPythonDebugging , which mentions the py-list, py-up and py-down, py-bt, py-print, and py-locals GDB commands that are also described in ** https://devguide.python.org/gdb/ **
https://wiki.python.org/moin/PythonDebuggingTools Ctrl-F "gdb" mentions: DDD, pyclewn (vim), trepan3k (which is gdb-like and supports breaking at c-line and also handles bytecode disassembly)
Apparently, GHIDRA does not have a debugger but there is a plugin for following along with gdb in ghidra called https://github.com/Comsecuris/gdbghidra , which may or may not be useful.
https://github.com/Mistobaan/pyclewn hasn't been updated in years, but may have useful bits for implementing mixed-mode debugging in other non-vim IDEs.
https://reverseengineering.stackexchange.com/questions/1392/decent-gui-for-g... lists a number of GUIs for GDB; including voltronnn:
There's Voltron, which is an extensible Python debugger UI that supports
LLDB, GDB, VDB, and WinDbg/CDB (via PyKD) and runs on macOS, Linux and Windows. For the first three it supports x86, x86_64, and arm with even arm64 support for lldb while adding even powerpc support for gdb. https://github.com/snare/voltron
https://developers.redhat.com/blog/2017/11/10/gdb-python-api/ describes the GDB Python API.
https://pythonextensionpatterns.readthedocs.io/en/latest/debugging/debug_in_... may be helpful.
Does DDD support mixed-mode debugging? https://www.gnu.org/software/ddd/manual/html_mono/ddd.html
Essentially, for IDE support, AFAIU, the basic functionality is: - set breakpoints: `b c-file.c:123` - step through them while seeking-to and highlighting the current breakpoint - provide one or more panes for executing GDB commands within the current or other frames
The GDB Python API docs: https://sourceware.org/gdb/onlinedocs/gdb/Python-API.html
The devguide gdb page may be the place to list IDEs with support for mixed-mode debugging of Python and C/C++/Cython specifically with gdb?
On Sunday, December 1, 2019, Skip Montanaro skip.montanaro@gmail.com wrote:
Having tried comp.lang.python with no response, I turn here...
After at least ten years away from Python's run-time interpreter & byte code compiler, I'm getting set to familiarize myself with that again. This will, I think, entail debugging a mixed Python/C environment. I'm an Emacs user and am aware that GDB since 7.0 has support for debugging at the Python code level. Is Emacs+GDB my best bet? Are there any Python IDEs which support C-level breakpoints and debugging?
Thanks,
Skip _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/L2KBZM64...
Code of Conduct: http://python.org/psf/codeofconduct/
Hi Skip,
I just wanted to note that what I usually do in this case is having 2 debuggers attached.
i.e.: start one any way you want and then do an attach to from the other debugger -- in my case as I'm usually on the Python side I usually start the Python debugger and then do an attach to from the C++ IDE, but you can probably do it the other way around too :)
On Sun, Dec 1, 2019 at 1:57 PM Skip Montanaro skip.montanaro@gmail.com wrote:
Having tried comp.lang.python with no response, I turn here...
After at least ten years away from Python's run-time interpreter & byte code compiler, I'm getting set to familiarize myself with that again. This will, I think, entail debugging a mixed Python/C environment. I'm an Emacs user and am aware that GDB since 7.0 has support for debugging at the Python code level. Is Emacs+GDB my best bet? Are there any Python IDEs which support C-level breakpoints and debugging?
Thanks,
Skip _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/L2KBZM64... Code of Conduct: http://python.org/psf/codeofconduct/
Same here, I do Pycharm and it is possible to add clion plugin and go through C code ...
On Mon, Dec 2, 2019 at 8:34 AM Fabio Zadrozny fabiofz@gmail.com wrote:
Hi Skip,
I just wanted to note that what I usually do in this case is having 2 debuggers attached.
i.e.: start one any way you want and then do an attach to from the other debugger -- in my case as I'm usually on the Python side I usually start the Python debugger and then do an attach to from the C++ IDE, but you can probably do it the other way around too :)
On Sun, Dec 1, 2019 at 1:57 PM Skip Montanaro skip.montanaro@gmail.com wrote:
Having tried comp.lang.python with no response, I turn here...
After at least ten years away from Python's run-time interpreter & byte code compiler, I'm getting set to familiarize myself with that again. This will, I think, entail debugging a mixed Python/C environment. I'm an Emacs user and am aware that GDB since 7.0 has support for debugging at the Python code level. Is Emacs+GDB my best bet? Are there any Python IDEs which support C-level breakpoints and debugging?
Thanks,
Skip _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/L2KBZM64... Code of Conduct: http://python.org/psf/codeofconduct/
Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/ZJOFXW2K... Code of Conduct: http://python.org/psf/codeofconduct/
Thanks for the responses. I know there are multiple tools out there (to wit, Wes's response), but I'm really after what people actually use and find works. I apologize that wasn't clear. I did neglect to mention that my environment is Linux (specifically Ubuntu 18.04), so Windows-based solutions aren't likely to be workable for me.
For the time being, I've been working through one or two of the docs/tutorials about the parsing/compiler internals which focus on the C side, so gdb with curses display enabled (Ctrl-X a) and built-in PyObject support has been sufficient. I will eventually need mixed language debugging though. And, as an Emacs user, how this might play in that sandbox is of interest.
Skip
"Debugging a Mixed Python and C Language Stack" (2023) https://developer.nvidia.com/blog/debugging-mixed-python-and-c-language-stac... https://news.ycombinator.com/item?id=35706687
On Mon, Dec 2, 2019, 10:59 AM Skip Montanaro skip.montanaro@gmail.com wrote:
Thanks for the responses. I know there are multiple tools out there (to wit, Wes's response), but I'm really after what people actually use and find works. I apologize that wasn't clear. I did neglect to mention that my environment is Linux (specifically Ubuntu 18.04), so Windows-based solutions aren't likely to be workable for me.
For the time being, I've been working through one or two of the docs/tutorials about the parsing/compiler internals which focus on the C side, so gdb with curses display enabled (Ctrl-X a) and built-in PyObject support has been sufficient. I will eventually need mixed language debugging though. And, as an Emacs user, how this might play in that sandbox is of interest.
Skip _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@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/IZRJX3YY... Code of Conduct: http://python.org/psf/codeofconduct/
participants (5)
-
Dino Viehland -
Fabio Zadrozny -
Sasha Kacanski -
Skip Montanaro -
Wes Turner