Re: [RFC PATCH 2/9] perf: Add ability to dump user regs

Peter Zijlstra
2010-10-17T10:07:24Z

On Sat, 2010-10-16 at 00:58 +0200, Frederic Weisbecker wrote:
> > Yes, PEBS does not capture the entire state.
> >
> > Here is what you get on Intel Core:
> > u64 flags, ip;
> > u64 ax, bx, cx, dx;
> > u64 si, di, bp, sp;
> > u64 r8, r9, r10, r11;
> > u64 r12, r13, r14, r15;

> Ok, that seems to cover most of the state. I guess few people care
> about cs, ds, es, fs, gs, most of the time.

Yeah, except if you want to profile wine or something like that ;-)