[U-Boot-Users] GDB support for ARM

[Woodruff, Richard]

Hi Dirk,

I looked into this a while back.  The code necessary to make this work
for ARM is not present.  I added about 1/2 of the code (perhaps more
than half) necessary to get it to work on the OMAP1510 and can send it
if you like.  The missing bit has to do with handing exceptions
properly.

I added in a serial debug server which is used along with a
manufacturer's wireless tests.  I attempted to input this code in a
somewhat parallel way to what GDB needed, in hopes that I could also
make the GDB stuff work.

Given how useful JTAG is and schedules I didn't end up working though
the exception code.  It broken in several spots, some in its current use
of R8, some in its stacking for SWI mode, and in general its recovery
needs work.

Regards,

Richard W.

> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net [mailto:u-boot-users-
> admin at lists.sourceforge.net] On Behalf Of Dirk Behme
> Sent: Tuesday, June 01, 2004 2:23 AM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] GDB support for ARM
> 
> Hello,
> 
> using U-Boot at an ARM9 board, at the moment I download a image by
tftp
> into board's SDRAM and then start the image by 'g 0x1000000'
(0x10000000
> is the SDRAM base address).
> 
> Now, I wonder if it is possible to start the image under control of
gdb.
>   As I understand it, there can run a small 'gdb-stub' on the target
> which talks by serial line or by ethernet with the gdb on the
> development host.
> 
> In common/kgdb.c there seems to be something like this small
'gdb-stub'?
> Does it work for ARM? How can it be used?
> 
> Thanks in advance and sorry if this is a FAQ.
> 
> Regards
> 
> Dirk
> 
> 
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