lkml.org 
[lkml]   [2010]   [Jan]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: linux-next: add utrace tree
Date
>>>>> "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


\
 
 \ /
  Last update: 2010-01-27 00:23    [W:0.181 / U:1.412 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site