[PATCH 0/7] perf: cs-etm: Fixes around timestamped and timeless decoding

James Clark james.clark at arm.com
Mon Apr 24 06:47:40 PDT 2023


The first commit contains a fix for a recently introduced regression,
but was always a shortcoming in the Coresight code anyway.

The following commits are a tidyup in preparation for the last commit,
which is a fairly major change to the decode logic that's also
indirectly related to the regression so I thought it would be good time
to fix that now.

Applies to perf/core (9be6ab181b7b)

James Clark (7):
  perf: cs-etm: Fix timeless decode mode detection
  perf tools: Add util function for overriding user set config values
  perf: cs-etm: Don't test full_auxtrace because it's always set
  perf: cs-etm: Validate options after applying them
  perf: cs-etm: Allow user to override timestamp and contextid settings
  perf: cs-etm: Use bool type for boolean values
  perf: cs-etm: Add separate decode paths for timeless and per-thread
    modes

 tools/perf/arch/arm/util/cs-etm.c             | 223 +++++++++---------
 tools/perf/arch/arm/util/pmu.c                |   2 +
 tools/perf/arch/arm64/util/arm-spe.c          |  26 +-
 tools/perf/arch/x86/util/intel-pt.c           |  22 +-
 tools/perf/tests/shell/test_arm_coresight.sh  |  24 ++
 .../perf/util/cs-etm-decoder/cs-etm-decoder.h |   8 +-
 tools/perf/util/cs-etm.c                      | 200 +++++++++++-----
 tools/perf/util/cs-etm.h                      |   6 +-
 tools/perf/util/evsel.c                       |  29 +++
 tools/perf/util/evsel.h                       |   3 +
 10 files changed, 325 insertions(+), 218 deletions(-)

-- 
2.34.1




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