diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-05-31 13:23:45 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-06-06 18:52:08 +0300 |
| commit | 9fb523363f6e3984457fee95bb7019395384ffa7 (patch) | |
| tree | 5acf83a6f36d6838403ddc94a97518a9c0f39455 /tools/perf/util/intel-pt-decoder/intel-pt-decoder.h | |
| parent | dd27b87ab5fcf3ea1c060b5e3ab5d31cc78e9f4c (diff) | |
| download | linux-9fb523363f6e3984457fee95bb7019395384ffa7.tar.xz | |
perf intel-pt: Fix "Unexpected indirect branch" error
Some Atom CPUs can produce FUP packets that contain NLIP (next linear
instruction pointer) instead of CLIP (current linear instruction
pointer). That will result in "Unexpected indirect branch" errors. Fix
by comparing IP to NLIP in that case.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1527762225-26024-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/intel-pt-decoder/intel-pt-decoder.h')
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/intel-pt-decoder.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h index fc1752d50019..51c18d67f4ca 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h @@ -60,6 +60,14 @@ enum { INTEL_PT_ERR_MAX, }; +enum intel_pt_param_flags { + /* + * FUP packet can contain next linear instruction pointer instead of + * current linear instruction pointer. + */ + INTEL_PT_FUP_WITH_NLIP = 1 << 0, +}; + struct intel_pt_state { enum intel_pt_sample_type type; int err; @@ -106,6 +114,7 @@ struct intel_pt_params { unsigned int mtc_period; uint32_t tsc_ctc_ratio_n; uint32_t tsc_ctc_ratio_d; + enum intel_pt_param_flags flags; }; struct intel_pt_decoder; |