linux-kernel - [PATCH v4 00/12] perf metric fixes and test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri,  1 May 2020 10:33:21 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Haiyan Song <haiyanx.song@...el.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Song Liu <songliubraving@...com>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>,
        John Garry <john.garry@...wei.com>,
        Leo Yan <leo.yan@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Paul Clarke <pc@...ibm.com>, linux-kernel@...r.kernel.org,
        kajoljain <kjain@...ux.ibm.com>, linux-perf-users@...r.kernel.org
Cc:     Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH v4 00/12] perf metric fixes and test

Add a test that all perf metrics (for your architecture) are parsable
with the simple expression parser. Attempt to parse all events in
metrics but only fail if the metric is for the current CPU. Fix bugs
in the expr parser, x86 and powerpc metrics. Improve debug messages
around add PMU config term failures.

v4 rebases after Kajol Jain's patches and fixes an asprintf warning.
v3 adds parse event testing of ids and improves debug messages for add
  PMU. These messages are paticular visible with 'perf test 10
  -vvv'. It moves the testing logic from tests/expr.c to
  tests/pmu-events.c as suggested by John Garry
  <john.garry@...wei.com>.  
v2 adds Fixes tags to commit messages for when broken metrics were
  first added. Adds a debug warning for division by zero in expr, and
  adds a workaround for id values in the expr test necessary for
  powerpc. It also fixes broken power8 and power9 metrics.

Ian Rogers (12):
  perf expr: unlimited escaped characters in a symbol
  perf metrics: fix parse errors in cascade lake metrics
  perf metrics: fix parse errors in skylake metrics
  perf expr: allow ',' to be an other token
  perf expr: increase max other
  perf expr: parse numbers as doubles
  perf expr: debug lex if debugging yacc
  perf metrics: fix parse errors in power8 metrics
  perf metrics: fix parse errors in power9 metrics
  perf expr: print a debug message for division by zero
  perf parse-events: expand add PMU error/verbose messages
  perf test: improve pmu event metric testing

 tools/perf/arch/x86/util/intel-pt.c           |  32 ++--
 .../arch/powerpc/power8/metrics.json          |   2 +-
 .../arch/powerpc/power9/metrics.json          |   2 +-
 .../arch/x86/cascadelakex/clx-metrics.json    |  10 +-
 .../arch/x86/skylakex/skx-metrics.json        |   4 +-
 tools/perf/tests/builtin-test.c               |   5 +
 tools/perf/tests/expr.c                       |   1 +
 tools/perf/tests/pmu-events.c                 | 156 +++++++++++++++++-
 tools/perf/tests/pmu.c                        |   4 +-
 tools/perf/tests/tests.h                      |   2 +
 tools/perf/util/expr.c                        |   1 +
 tools/perf/util/expr.h                        |   2 +-
 tools/perf/util/expr.l                        |  16 +-
 tools/perf/util/expr.y                        |  16 +-
 tools/perf/util/parse-events.c                |  29 +++-
 tools/perf/util/pmu.c                         |  33 ++--
 tools/perf/util/pmu.h                         |   2 +-
 17 files changed, 262 insertions(+), 55 deletions(-)

-- 
2.26.2.526.g744177e7f7-goog