* AW: [ECOS] several remote gdb questions/problems
@ 2004-08-10 8:21 Neundorf, Alexander
0 siblings, 0 replies; 2+ messages in thread
From: Neundorf, Alexander @ 2004-08-10 8:21 UTC (permalink / raw)
To: ecos-discuss
...
> Ok, I opened /dev/ttydiag in my app and this seems to have
> the effect that the break events don't get through. So I
> added manually the check for ctrl-c (0x03) when reading from
> /dev/ttydiag and call cyg_hal_user_break() when this happens.
> Seems to work perfectly :-)
More important: both "Work with ROM monitor" and "Inherit console settings from ROM monitor" must be enabled with configtool for the application.
> Adding a "write-only" mode to cutecom (http://cutecom.sf.net)
> solved the problem for me :-). Now I can debug with gdb and
> enter commands through cutecom.
Ok, next version of cutecom (0.10.1) will work correctly, in 0.10.0 there is a bug with this feature.
Bye
Alex
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^ permalink raw reply [flat|nested] 2+ messages in thread
* AW: [ECOS] several remote gdb questions/problems
@ 2004-08-10 6:11 Neundorf, Alexander
0 siblings, 0 replies; 2+ messages in thread
From: Neundorf, Alexander @ 2004-08-10 6:11 UTC (permalink / raw)
To: ecos-discuss
Hi,
maybe some people are interested or have the same issues, so I post my findings here so that they end up in the archives:
> Two (maybe three) issues:
> It seems I am not able to pause a running program.
> ecos/packages/hal/arm/xscale/pxa2x0/hal_diag.c contains code
> which seems to check for ctrl-c . But pressing ctrl-c in
> arm-elf-gdb doesn't break the program :-/
> Redboot is configured as rom-monitor, with gdb_break_support
> (not ctrl-c support), since the stubs are present in redboot.
> The app is configured without stubs, and checking
> gdb_break_support or ctrlc_support doesn't change the behaviour.
> Any hints why it doesn't work or how to find out the reason ?
Ok, I opened /dev/ttydiag in my app and this seems to have the effect that the break events don't get through. So I added manually the check for ctrl-c (0x03) when reading from /dev/ttydiag and call cyg_hal_user_break() when this happens. Seems to work perfectly :-)
> Next one: I know this question was posted here several times
> already, but I didn't find a definitive answer. I have (only)
> one serial port, which I use for diag_printf(). On the xscale
> I read characters from /dev/ttydiag and interpret the commands.
> gdb runs over the same serial line.
> Is it possible to use gdb and at the same time see the
> diag_printf() output and be able to enter some commands via
> the serial line so that they reach my interpreter on the xscale ?
Adding a "write-only" mode to cutecom (http://cutecom.sf.net) solved the problem for me :-). Now I can debug with gdb and enter commands through cutecom.
Isn't there a way to send commands directly thgough gdb to the device ?
> (third one: are there known problems with adding global
> object instances to the watch window with insight 6.1 ? When
> I try this, insight stalls and I have to kill it).
Well, the object was too big (several megabytes, I should have thought about this before), it works with smaller objects.
Bye
Alex
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Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
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