[sr-dev] Compile modules with debug symbols

[Carlos Ruiz Díaz]

Hi Daniel,

no, it's just a plain make && make install.

I spent a few hours on debugging and I figured out that it was an off by
one error on a memcpy() on certain exceptional conditions. I fixed that but
then I found a memory leak that's causing the crash after 40k calls but I'm
having a hard time interpreting the dump provided after sending the SIGUSR1
to the process. if I'm not mistaken, there are two pkg_str_dup() leaks per
call but I'm still searching where I'm missing the pkg_free().

Is there a way to know where in the code the pkg_str_dup was called?

I tried with valgrind too, but after the macro expansion of the memory
management functions, is very hard to find where it was called.

Regards.

Carlos.



On Mon, Sep 10, 2012 at 4:02 AM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:

>  Hello,
>
> yes, by default is with debug symbols on. Do you provide special flags or
> parameters to the make command?
>
> Cheers,
> Daniel
>
>
> On 9/8/12 9:39 PM, Carlos Ruiz Díaz wrote:
>
> Hello list,
>
>  I'm trying to debug my module after it crashed by SIGSEGV, but the
> problem is that I'm unable to see the relevant data in the core file that's
> being dumped after the crash.
>
>  For example, if I do *bt full, *I get:
>
>  0  0x0ef0f494 in append_string () from
> /opt/install/kamailio-3.2.3/lib/kamailio/modules_k/cnx3a.so
> No symbol table info available.
> #1  0x0eef9658 in build_message () from
> /opt/install/kamailio-3.2.3/lib/kamailio/modules_k/cnx3a.so
> No symbol table info available.
> Backtrace stopped: frame did not save the PC
>
>  Only the functions that were called but no parameter values.
>
>  AFAIK, if I compile kamailio from sources, it is by default compiled
> with the -g option, so, it looks like that I'm missing something else.
>
>  Regards.
>
>  Carlos.
>
>
> _______________________________________________
> sr-dev mailing listsr-dev at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-dev/attachments/20120910/f1e06b67/attachment.htm>