Re: [RFC PATCH] perf/x86: make perf callchain work without CONFIG_FRAME_POINTER

From: Kairui Song
Date: Fri Apr 05 2019 - 11:21:18 EST


On Fri, Apr 5, 2019 at 3:17 PM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> And you forgot to Cc Josh..
>

Hi, thanks for the reply and Cc more people, I just copies the list
from ./scripts/get_maintainer.pl, will pay more attention next time.

> >
> > Just found with ORC unwinder the perf callchain is unusable, and this
> > seems fixes it well, any suggestion is welcome, thanks!
>
> That whole .direct stuff is horrible crap.
>

Sorry if I did anything dumb, but I didn't find a better way to make
it work so sent this RFC... Would you mind tell me what I'm doing
wrong, or give any suggestion about how should I improve it?

--
Best Regards,
Kairui Song