From: Adrian Hunter <[email protected]> Like other synthesized events, if there is also an Intel PT branch trace, then a call stack can also be synthesized. Add that.
Signed-off-by: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/intel-pt.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index bf7647897e8a..550db6e77968 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -1730,6 +1730,14 @@ static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq) sample.time = tsc_to_perf_time(timestamp, &pt->tc); } + if (sample_type & PERF_SAMPLE_CALLCHAIN && + pt->synth_opts.callchain) { + thread_stack__sample(ptq->thread, ptq->cpu, ptq->chain, + pt->synth_opts.callchain_sz, sample.ip, + pt->kernel_start); + sample.callchain = ptq->chain; + } + if (sample_type & PERF_SAMPLE_REGS_INTR && items->mask[INTEL_PT_GP_REGS_POS]) { u64 regs[sizeof(sample.intr_regs.mask)]; -- 2.20.1
