Loop over threads in python

Loop over threads in python

[Dov Grobgeld]

Hello,

I would like to write a python command that lists all threads (of a
C++ program) that in its call path has a function matching a user
specified pattern.

To do that I have to iterate over all the threads. But I couldn't find
such a python API. Do I currently have to resort to using gdb commands
and parsing the output myself?

Thanks!
Dov

Re: Loop over threads in python

[Tim Black]

This article gives a good overview of driving gdb with python and
answers your question: http://www.linuxjournal.com/article/11027

On Sun, Jun 3, 2012 at 11:40 PM, Dov Grobgeld <dov.grobgeld@gmail.com> wrote:
> Hello,
>
> I would like to write a python command that lists all threads (of a
> C++ program) that in its call path has a function matching a user
> specified pattern.
>
> To do that I have to iterate over all the threads. But I couldn't find
> such a python API. Do I currently have to resort to using gdb commands
> and parsing the output myself?
>
> Thanks!
> Dov

Re: Loop over threads in python

[Dov Grobgeld]

Great! This is exactly what I needed. The documentation is really lacking.

Meanwhile I put together a "threadgrep" command yesterday by using
gdb.execute() and string parsing.

If someone is interested it may be gotten from:

https://github.com/dov/dov-env/blob/master/gdb/pythreadgrep.py

Regards,
Dov

On Mon, Jun 4, 2012 at 8:40 PM, Tim Black <timblaktu@gmail.com> wrote:
>
> This article gives a good overview of driving gdb with python and
> answers your question: http://www.linuxjournal.com/article/11027
>
> On Sun, Jun 3, 2012 at 11:40 PM, Dov Grobgeld <dov.grobgeld@gmail.com> wrote:
> > Hello,
> >
> > I would like to write a python command that lists all threads (of a
> > C++ program) that in its call path has a function matching a user
> > specified pattern.
> >
> > To do that I have to iterate over all the threads. But I couldn't find
> > such a python API. Do I currently have to resort to using gdb commands
> > and parsing the output myself?
> >
> > Thanks!
> > Dov

Re: Loop over threads in python

[Tom Tromey]

>>>>> "Dov" == Dov Grobgeld <dov.grobgeld@gmail.com> writes:

Dov> Great! This is exactly what I needed. The documentation is really
Dov> lacking.

Please file bugs against the python component with any suggestions you
have.  We'd like to improve the documentation, but generally those of us
working on the Python support don't see the holes, as it were.
File bugs liberally -- it is better to over-file than under-file.

Tom