On 02/04/2014 02:49 PM, Ulrich Weigand wrote:
Marc Kleine-Budde mkl@pengutronix.de wrote on 04.02.2014 00:59:12:
I'm on a freescale mx53 (single core, cortex a8) and trying to find a nasty problem in our $CUSTOMER's application. Working hardware watch point support in gdb should solve the problem, or at least brings us a big step forward. I stumbled over your about three years old thread[1] about the cortex a8 memory mapped debug registers problem. Do I understand correctly, that you had a8 watch point running on at least one board? Have you got any code and or pointers to get watch point support running?
no, I only ever had it running on a Cortex-A9 based Versatile Express.
My understanding is that kernel has never supported hardware watch points on Cortex-A8, so unless this has been added at some point over the last three years (I haven't been working with Linaro/ARM for a while ...), it probably still doesn't work.
Thanks for the clarification.
For the record: openocd works pretty well to set hardware watch points on the mx53 And I debugged the problem using the external JTAG.
Marc