[PATCH v1 RESEND 0/2] perf cs-etm: Improve timestamp tracing

From: Leo Yan
Date: Sat Oct 14 2023 - 03:42:19 EST


This patch series is to improve timestamp handling in per-thread mode.

The current code doesn't validate timestamp and always return success for
per-thread mode, for a sane implementation, the first patch is to allow
validation timestamp tracing in per-thread mode.

The second patch is to respect timestamp option "--timestamp" or "-T",
when users set this option, the tool will automatically enable hardware
timestamp tracing in Arm CoreSight.

This patch set is rebased on the latest perf-tools-next branch, and
tested on Arm Juno board. And added James Clark's review tags.


Leo Yan (2):
perf cs-etm: Validate timestamp tracing in per-thread mode
perf cs-etm: Respect timestamp option

tools/perf/arch/arm/util/cs-etm.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)

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2.34.1