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perf cs-etm: Set sample flags for instruction range packet

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The perf sample data contains flags to indicate the hardware trace data
is belonging to which type branch instruction, thus this can be used to
print out the human readable string.  Arm CoreSight ETM sample data is
missed to set flags and it is always set to zeros, this results in perf
tool skips to print string for instruction types.

This patch is to set branch instruction flags for instruction range
packet.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Robert Walker <robert.walker@arm.com>
Cc: Suzuki K Poulouse <suzuki.poulose@arm.com>
Cc: coresight ml <coresight@lists.linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190129122842.32041-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan
2019-01-29 20:28:36 +08:00
committed by Arnaldo Carvalho de Melo
parent ca45d843a5
commit 06220bf472
3 changed files with 91 additions and 2 deletions
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2
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
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@@ -293,6 +293,7 @@ static void cs_etm_decoder__clear_buffer(struct cs_etm_decoder *decoder)
decoder->packet_buffer[i].last_instr_type = 0;
decoder->packet_buffer[i].last_instr_subtype = 0;
decoder->packet_buffer[i].last_instr_cond = 0;
decoder->packet_buffer[i].flags = 0;
decoder->packet_buffer[i].cpu = INT_MIN;
}
}
@@ -329,6 +330,7 @@ cs_etm_decoder__buffer_packet(struct cs_etm_decoder *decoder,
decoder->packet_buffer[et].last_instr_type = 0;
decoder->packet_buffer[et].last_instr_subtype = 0;
decoder->packet_buffer[et].last_instr_cond = 0;
decoder->packet_buffer[et].flags = 0;
if (decoder->packet_count == MAX_BUFFER - 1)
return OCSD_RESP_WAIT;