On 09/15/2010 08:47 AM, Drasko DRASKOVIC wrote: > > > If somebody can confirm this, than we can sign-off cache coherency as > a problem and concentrate on a breakpoint handling. >
I sent in a patch a while back to fix this very problem on the xscale; i.e., software breakpoints didn't work because of cache issues. The problem was clear: execution failed to halt on software breakpoints most of the time. And always if set a few instructions ahead of the current value of the pc. Once the code to clean and flush the cache was added, the problem went away and I haven't seen any issues since, and I use sw breakpoints frequently. My guess is that this is not a cache issue. I never saw wierd behavior like winding up at the same instruction after a step. If I were seeing the same problem on my target, I would guess a bug in the single-stepping code. Since I'm not seeing it, I'm at a loss. Mike _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
