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

Message ID 20210624164303.28632-1-james.clark@arm.com (mailing list archive)
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Series perf cs-etm: Split Coresight decode by aux records | expand

Message

James Clark June 24, 2021, 4:43 p.m. UTC 
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(-)