[PD] debugging externs with gdb in Linux

[Miller Puckette]

I've never succeeded at this but never tried really hard.  My technique:

run -nrt

shuts up teh watchdog; and to get GDB to see the extern I just compile the
extern into Pd itself.  (Add a source file to the makefile and two lines to
m_conf.c).

If soneone else knows the magic to get GDB to see symbols in a Pd extern I'd
like to hear it too.

cheers
Miller

On Thu, Aug 06, 2015 at 02:08:19PM -0700, David Medine wrote:
> Does anybody out there know how to use gdb to debug an extern in Linux? I
> have used this method:
> https://puredata.info/docs/developer/DebuggingPdExternals
> on Mac and it seems to work fine, but on my Fedora 20 system, when I run
> 
> (gdb) add-symbol-file /path/to/my_extern.pd_linux
> 
> I get the message
> The address where /path/to/my_extern.pd_linux has been loaded is missing
> 
> and when I tab to complete on
> 
> (gdb) attach pd.
> 
> it hits me with 60000 completions -- apparently all the symbols in Pd.
> 
> In any case, it doesn't work and when my extern crashes, pd's watchdog
> starts barking at me and I can't use the debugger.
> 
> I know Miller has suggested actually building the extern into Pd and doing a
> standard debugging session, but there has got to be a better way.
> Suggestions?
> 
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