linux-kernel - [PATCH 0/9] perf tools: Report event parsing errors

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:	Wed, 22 Apr 2015 21:10:15 +0200
From:	Jiri Olsa <jolsa@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	David Ahern <dsahern@...il.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: [PATCH 0/9] perf tools: Report event parsing errors

hi,
adding support to report error from event string parsing.

v1 changes (from RFC):
  - display list of allowed terms for pmu event error [Ingo]
  - changing 'invalid or unsupported event' string into
    'event syntax error' for cases we know the precise error

This patchset contains support for standard parsing errors
and more logic to recognize tracepoint and 'pmu//' terms,
like:

  $ sudo perf record -e 'sched:krava' ls
  event syntax error: 'sched:krava'
                       \___ unknown tracepoint
  ...

  $ perf record -e 'cpu/even=0x1/' ls
  event syntax error: 'cpu/even=0x1/'
                           \___ unknown term

  valid terms: pc,any,inv,edge,cmask,event,in_tx,ldlat,umask,in_tx_cp,offcore_rsp,config,config1,config2..
  ...

  $ perf record -e cycles,cache-mises ls
  event syntax error: '..es,cache-mises'
                                 \___ parser error
  ...

Changes are also reachable in here:
  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
  perf/event_parse_error

thanks
jirka


---
Jiri Olsa (9):
      perf tools: Add parse_events_error interface
      perf tools: Add flex support for parse_events_error
      perf tools: Always bail out when config_attr function fails
      perf tools: Change parse_events_add_pmu interface
      perf tools: Add location to pmu event terms
      perf tools: Add term support for parse_events_error
      perf tools: Add static terms support for parse_events_error
      perf tools: Add tracepoint support for parse_events_error
      perf tools: Add symbolic events support for parse_events_error

 tools/perf/builtin-stat.c               |   2 +-
 tools/perf/tests/code-reading.c         |   2 +-
 tools/perf/tests/evsel-roundtrip-name.c |   4 +-
 tools/perf/tests/hists_cumulate.c       |   2 +-
 tools/perf/tests/hists_filter.c         |   4 +-
 tools/perf/tests/hists_link.c           |   4 +-
 tools/perf/tests/hists_output.c         |   2 +-
 tools/perf/tests/keep-tracking.c        |   4 +-
 tools/perf/tests/parse-events.c         |   2 +-
 tools/perf/tests/perf-time-to-tsc.c     |   2 +-
 tools/perf/tests/pmu.c                  |   3 +-
 tools/perf/tests/switch-tracking.c      |   8 +--
 tools/perf/util/parse-events.c          | 194 +++++++++++++++++++++++++++++++++++++++++++++++++++++-----------
 tools/perf/util/parse-events.h          |  36 ++++++++----
 tools/perf/util/parse-events.l          |  41 ++++++++++++--
 tools/perf/util/parse-events.y          |  48 ++++++++--------
 tools/perf/util/pmu.c                   |  57 +++++++++++++++++--
 tools/perf/util/pmu.h                   |   6 +-
 tools/perf/util/record.c                |   4 +-
 19 files changed, 325 insertions(+), 100 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/