[PATCH v2 0/3] perf cs-etm: Handle valid-but-zero timestamps

From: James Clark
Date: Thu May 13 2021 - 10:36:00 EST


This patchset is an alternate solution to the original: "[RFC PATCH]
perf cs-etm: Handle valid-but-zero timestamps". It uses the existing
Z option to --itrace instead of modifying the behaviour of the
cs_etm__etmq_get_timestamp() function.

Using timeless mode is equivalent to ignoring 0 timestamps, as
suggested by Mike and Leo.

It applies on top of "[PATCH v3 0/2] perf cs-etm: Set time on
synthesised samples to preserve ordering"

James Clark (3):
perf cs-etm: Move synth_opts initialisation
perf cs-etm: Start reading 'Z' --itrace option
perf cs-etm: Prevent and warn on underflows during timestamp
calculation.

.../perf/util/cs-etm-decoder/cs-etm-decoder.c | 45 ++++++++++++++-----
tools/perf/util/cs-etm.c | 20 +++++----
2 files changed, 46 insertions(+), 19 deletions(-)

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2.28.0