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authorAdrian Hunter <adrian.hunter@intel.com>2021-12-10 18:22:58 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-12-11 08:19:47 -0300
commitad106a26aef3a95ac7ca88d033b431661ba346ce (patch)
tree21256a8f759eb8b3d0ac78b329f427f094cda44a /tools
parent057ae59f5a1d924511beb1b09f395bdb316cfd03 (diff)
downloadlinux-ad106a26aef3a95ac7ca88d033b431661ba346ce.tar.bz2
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
When syncing, it may be that branch packet generation is not enabled at that point, in which case there will not immediately be a control-flow packet, so some packets before a control flow packet turns up, get ignored. However, the decoder is in sync as soon as a PSB is found, so the state should be set accordingly. Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 6f6f163161a9..bddf98123dc3 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -3608,7 +3608,7 @@ static int intel_pt_sync(struct intel_pt_decoder *decoder)
}
decoder->have_last_ip = true;
- decoder->pkt_state = INTEL_PT_STATE_NO_IP;
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
err = intel_pt_walk_psb(decoder);
if (err)