Messages in this thread | | | From | Tom Tromey <> | Subject | Re: linux-next: add utrace tree | Date | Tue, 26 Jan 2010 16:20:22 -0700 |
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>>>>> "Linus" == Linus Torvalds <torvalds@linux-foundation.org> writes:
Tom> * Support "displaced stepping" in the kernel; I think this would improve Tom> performance when debugging in non-stop mode.
Linus> Don't we already do that at least on x86?
I don't know. If it does, and gdb does not yet use that, then that would be worth changing.
Linus> Or maybe I'm not understanding what displaced stepping means to you.
In non-stop mode (where you can stop one thread but leave the others running), gdb wants to have the breakpoints always inserted. So, something must emulate the displaced instruction.
Tom
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