Re: [ptp-dev] debug output question

[Feiyi Wang <fwang2@xxxxxxxx>]

A few more questions on your previous email: he DoOOBStreamCallbacks() 
eventually boils down to:

if (sess-> target_callback != NULL)
	sess -> target_callback(str);

Here, suppose str is the output I read from pseduo tty. Two questions:

(1) I don't see where an MIEvent was generated because of this callback 
- should it? (2) if there is a MIEvent generated somewhere along the 
line, and pass in AsyncCallback(), it is not clear which event type I 
should check for this purpose: MIEventTypeBreakpointHit, WatchPoint, 
SteppingRange ...

Thanks

Feiyi


> f) For the moment, I suggest modifying AsyncCallback in gdbmi_backend.c 
> to check for this event and just print the output to stdout (see 
> AsyncStop for an example of how to check the event type). This *should* 
> get picked up by ORTE and forwarded back to Eclipse. We can work out how 
> to do it properly later.
>
> Note: there are at least two ways to create psuedo terminals. The BSD 
> way and the SYSV way. I think Linux supports both. See the wikipedia 
> entry for a description. I should also be able to dig up some sample 
> code if you'd like.
>
> 2) No. You can attach gdb to the running process, but it's tricky to 
> know which one. I usually just run the whole SDM on my local machine and 
> observe stdout.
>
> Let me know if you need more info.
>
> Greg
>
> On Oct 2, 2007, at 11:28 AM, Feiyi Wang wrote:
>
> > On my 2nd question, both orte proxy and sdm can be attached by having 
> > appropriate debug configuration. However, how gdb/mi layer handle 
> > program stdio is not clear to me yet - any help?
> >
> > Feiyi
> >
> > Feiyi Wang wrote:
> > > Greg -
> > > I have made changes to debug_app_job_state_callback to register IO 
> > > forwarding callback, but I didn't see output being sent back to the 
> > > front. So the next step of investigation would be to check if the 
> > > backend (gdb/mi) is send the message back if I understand this 
> > > correct. Two questions: (1) can you provide any pointers on where I 
> > > should be looking at (2) is there any way I could set up eclipse 
> > > debugger to hook into orte proxy and sdm process?
> > > Thanks
> > > Feiyi
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