perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP

commit ad7167a8cd174ba7d8c0d0ed8d8410521206d104 upstream.

A value of zero is used to indicate that there is no IP. Ensure the
value is zero when the state is INTEL_PT_STATE_NO_IP.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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 deadae3..ca5e11d 100644 (file)
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -2083,6 +2083,7 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
                        break;
                case INTEL_PT_STATE_NO_IP:
                        decoder->last_ip = 0;
+                       decoder->ip = 0;
                        /* Fall through */
                case INTEL_PT_STATE_ERR_RESYNC:
                        err = intel_pt_sync_ip(decoder);