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Re: [Qemu-devel] [PATCH] gdbstub: Allow target CPUs to specify watchpoin
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] gdbstub: Allow target CPUs to specify watchpoint STOP_BEFORE_ACCESS flag |
Date: |
Mon, 15 Sep 2014 21:15:34 -0700 |
On 15 September 2014 20:59, Max Filippov <address@hidden> wrote:
> I've tested xtensa part and have noticed no difference with or without
> this patch:
> gdb connected to qemu gdbstub always stops right after the watched
> instruction.
> I guess that without this patch I should have seen gdb stopping not right
> after
> the watched instruction, but one instruction later, right?
Yes, that is the behaviour I saw on ARM. Perhaps for
Xtensa gdb thinks it has no watchpoint support at all
and is using its "singlestep-and-test" fallback?
-- PMM