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several remote gdb questions/problems
- From: Øyvind Harboe <oyvind dot harboe at zylin dot com>
- To: ecos-discuss at sources dot redhat dot com, Alexander dot Neundorf at jenoptik dot com
- Date: Thu, 05 Aug 2004 23:08:07 +0200
- Subject: [ECOS] several remote gdb questions/problems
- References: <1091733354.22994.ezmlm@ecos.sourceware.org>
> Hi,
>
> I'm using ecos cvs on an XScale.
> Basically debugging with arm-elf-gdb/insight works.
> It's gcc 3.2.1 and gdb 6.1
>
> 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 ?
>
> 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 ?
>
> (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).
>
> Thanks for any pointers
Have you considered a hardware JTAG debugger?
For almost any non-trivial project it will be a major timesaver.
I'm using the BDI2000 which also acts as a flash programmer.
> Alex
--
Øyvind Harboe
http://www.zylin.com
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