Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1642182
| From | Namhyung Kim <namhyung@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] perf report: fix off-by-one for non-activation frames |
| Date | 2017-05-16 04:00 +0200 |
| Message-ID | <tHzWh-7wv-5@gated-at.bofh.it> (permalink) |
| References | <tHpNg-1m3-21@gated-at.bofh.it> <tHpWW-1pB-29@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, May 15, 2017 at 05:13:06PM +0200, Milian Wolff wrote: > On Monday, May 15, 2017 5:04:44 PM CEST Milian Wolff wrote: > > As the documentation for dwfl_frame_pc says, frames that > > are no activation frames need to have their program counter > > decremented by one to properly find the function of the caller. > > Note that this leaves the perf build against libunwind in the current, broken > state. I do not know how to detect the activation property there. Does anyone > else? See elfutils source code for what it is doing: > > https://sourceware.org/git/?p=elfutils.git;a=blob;f=libdwfl/ > dwfl_frame_pc.c;h=296c815b9c73f42d79ac1778d2a0c420b89ee4eb;hb=HEAD It seems that you can use unw_is_signal_frame(). Thanks, Namhyung
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH] perf report: fix off-by-one for non-activation frames Milian Wolff <milian.wolff@kdab.com> - 2017-05-15 17:10 +0200
Re: [PATCH] perf report: fix off-by-one for non-activation frames Milian Wolff <milian.wolff@kdab.com> - 2017-05-15 17:20 +0200
Re: [PATCH] perf report: fix off-by-one for non-activation frames Namhyung Kim <namhyung@kernel.org> - 2017-05-16 04:00 +0200
Re: [PATCH] perf report: fix off-by-one for non-activation frames Milian Wolff <milian.wolff@kdab.com> - 2017-05-16 11:10 +0200
csiph-web