Date:   Wed, 24 May 2017 15:21:22 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, kernel-team@....com,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Milian Wolff <milian.wolff@...b.com>,
        Yao Jin <yao.jin@...ux.intel.com>
Subject: [GIT PULL 0/7] perf/urgent callchain fixes

Hi Ingo,

Please consider pulling the perf tooling changes below.  Build tested
on Ubuntu, Fedora and Archlinux.  I found a problem during `perf test`
but it seems unrelated to this series.  Will take a look it later.

Thanks,
Namhyung


The following changes since commit 88b0193d9418c00340e45e0a913a0813bc6c8c96:

  perf/callchain: Force USER_DS when invoking perf_callchain_user() (2017-05-10 07:54:00 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf tags/perf-urgent-for-mingo-4.12-20170524

for you to fetch changes up to 37d4e1b6ba56773cef96122dff4436c2c534c381:

  perf tools: Fix to put caller above callee in children mode (2017-05-24 08:51:11 +0900)

----------------------------------------------------------------
perf/urgent fixes

Fixes:

 - Fix segfault on `perf report -g srcline` if a callchain address
   cannot find a map for some reason.  The srcline sorting mode needs
   a DSO to resolve line numbers and it's accessed via a map.  But it
   should check if map is available for the address first.  (Milian Wolff)

 - Fix off-by-one for srcline output.  It passed (unwound) address to
   resolve srcline for callchains.  But it's a return address of the
   function which points to a next instruction.  This leads to
   off-by-one for srcline info.  So pass the "address - 1" instead to
   get the correct srcline.  This also considers "signal frame" as
   well which has the exact address, so pass the address directly in
   this case.  (Milian Wolff)

 - Fix missing inlined function.  Current code missed to display
   inlined functions at the end.  This was found when comparing the
   output of addr2line and perf script.  (Milian Wolff)
   
 
User Visible:

 - `perf script` also gained `--inline` option to show inlined
   functions with callchains.  This helped to find a bug in the
   current inline code.  (Namhyung Kim)

 - Fix missed callchain ordering with `-g callee/caller` when libbfd
   is not available.  (Milian Wolff)
 
 - Reorder output entries in `perf report --children` so that it can
   put parent entries above their children.  It worked like this but
   missed when callchain display order was changed with `-g caller`.
   Now default is `-g caller` if children mode enabled.  (Namhyung Kim)


----------------------------------------------------------------

Milian Wolff (5):
      perf report: don't crash on invalid maps in `-g srcline` mode
      perf report: fix memory leak in addr2line when called by addr2inlines
      perf report: fix off-by-one for non-activation frames
      perf report: always honor callchain order for inlined nodes
      perf report: do not drop last inlined frame

Namhyung Kim (2):
      perf script: Add --inline option
      perf tools: Fix to put caller above callee in children mode

 tools/perf/Documentation/perf-script.txt |  4 +++
 tools/perf/builtin-script.c              |  2 ++
 tools/perf/ui/hist.c                     |  2 ++
 tools/perf/util/callchain.c              | 13 ++++++---
 tools/perf/util/evsel_fprintf.c          | 33 +++++++++++++++++++++
 tools/perf/util/srcline.c                | 49 +++++++++++++++++---------------
 tools/perf/util/unwind-libdw.c           |  6 +++-
 tools/perf/util/unwind-libunwind-local.c | 11 +++++++
 8 files changed, 92 insertions(+), 28 deletions(-)

Powered by blists - more mailing lists