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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2018-10-31 11:10:43 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-31 12:56:26 -0300 |
| commit | 5d4f0edaa3ac4f1844ed7c64cd2bae6f1912bac5 (patch) | |
| tree | cd351a1f6724d308b7eb932e66891047cac9962c /tools/perf/util/intel-bts.c | |
| parent | perf intel-pt: Insert callchain context into synthesized callchains (diff) | |
| download | linux-dev-5d4f0edaa3ac4f1844ed7c64cd2bae6f1912bac5.tar.xz linux-dev-5d4f0edaa3ac4f1844ed7c64cd2bae6f1912bac5.zip | |
perf intel-pt/bts: Calculate cpumode for synthesized samples
In the absence of a fallback, samples must provide a correct cpumode for
the 'ip'. Do that now there is no fallback.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: stable@vger.kernel.org # 4.19
Link: http://lkml.kernel.org/r/20181031091043.23465-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/intel-bts.c')
| -rw-r--r-- | tools/perf/util/intel-bts.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c index 3b3a3d55dca1..7b27d77306c2 100644 --- a/tools/perf/util/intel-bts.c +++ b/tools/perf/util/intel-bts.c @@ -269,6 +269,13 @@ static int intel_bts_do_fix_overlap(struct auxtrace_queue *queue, return 0; } +static inline u8 intel_bts_cpumode(struct intel_bts *bts, uint64_t ip) +{ + return machine__kernel_ip(bts->machine, ip) ? + PERF_RECORD_MISC_KERNEL : + PERF_RECORD_MISC_USER; +} + static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq, struct branch *branch) { @@ -281,12 +288,8 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq, bts->num_events++ <= bts->synth_opts.initial_skip) return 0; - event.sample.header.type = PERF_RECORD_SAMPLE; - event.sample.header.misc = PERF_RECORD_MISC_USER; - event.sample.header.size = sizeof(struct perf_event_header); - - sample.cpumode = PERF_RECORD_MISC_USER; sample.ip = le64_to_cpu(branch->from); + sample.cpumode = intel_bts_cpumode(bts, sample.ip); sample.pid = btsq->pid; sample.tid = btsq->tid; sample.addr = le64_to_cpu(branch->to); @@ -298,6 +301,10 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq, sample.insn_len = btsq->intel_pt_insn.length; memcpy(sample.insn, btsq->intel_pt_insn.buf, INTEL_PT_INSN_BUF_SZ); + event.sample.header.type = PERF_RECORD_SAMPLE; + event.sample.header.misc = sample.cpumode; + event.sample.header.size = sizeof(struct perf_event_header); + if (bts->synth_opts.inject) { event.sample.header.size = bts->branches_event_size; ret = perf_event__synthesize_sample(&event, |