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authorAdrian Hunter <adrian.hunter@intel.com>2017-05-26 11:17:08 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-06 19:19:40 -0700
commit0ce32f8944c64695a0c565a8069f10c9206baa6f (patch)
tree01a52b00f649f67f7233a9e67377fce9087f3099 /tools/perf
parent33f3bc42fc2357625b60f1d0580bed8207bcfbab (diff)
perf intel-pt: Use FUP always when scanning for an IP
commit 622b7a47b843c78626f40c1d1aeef8483383fba2 upstream. The decoder will try to use branch packets to find an IP to start decoding or to recover from errors. Currently the FUP packet is used only in the case of an overflow, however there is no reason for that to be a special case. So just use FUP always when scanning for an IP. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-8-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>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.c12
1 files changed, 4 insertions, 8 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 cc33ec09ba53..740c5c1b3558 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1848,14 +1848,10 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
break;
case INTEL_PT_FUP:
- if (decoder->overflow) {
- if (intel_pt_have_ip(decoder))
- intel_pt_set_ip(decoder);
- if (decoder->ip)
- return 0;
- }
- if (decoder->packet.count && decoder->have_last_ip)
- intel_pt_set_last_ip(decoder);
+ if (intel_pt_have_ip(decoder))
+ intel_pt_set_ip(decoder);
+ if (decoder->ip)
+ return 0;
break;
case INTEL_PT_MTC: