[PATCH v7 0/2] perf cs-etm: Split Coresight decode by aux records

From: James Clark
Date: Thu Jun 24 2021 - 12:43:15 EST


Change applies to perf/core (45237f9898fc)

Changes since v6:
* Fix for snapshot mode where buffers are wrapped. This fix was done by clamping the aux record
size to the size of the buffer (see comment).
* Added an extra debugging printout.
* Typo/formatting fixes.
* Add the change for --dump-raw-trace as a second commit. I planned to do this later, but have now
finished it so I'll submit it at the same time.
* Did some more thorough testing around the different snapshot scenarios.

Decoding snapshot files with duplicate data is improved by this patchset because of the reason
mentioned at the end of the testing section. Coincidentally, the same issue is also fixed in
"[PATCH v1 0/3] coresight: Fix for snapshot mode" but by not saving duplicates, rather than not
decoding them.

James Clark (2):
perf cs-etm: Split Coresight decode by aux records
perf cs-etm: Split --dump-raw-trace by AUX records

tools/perf/util/cs-etm.c | 188 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 185 insertions(+), 3 deletions(-)

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2.28.0