From: tip-bot for Adrian Hunter <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com,
adrian.hunter@intel.com, tglx@linutronix.de, acme@redhat.com,
jolsa@redhat.com, mingo@kernel.org
Subject: [tip:perf/core] perf intel-pt: Add callchain to synthesized PEBS sample
Date: Fri, 21 Jun 2019 23:43:00 -0700 [thread overview]
Message-ID: <tip-e01f0ef509ea7e76929f24a074d241de52c6f82a@git.kernel.org> (raw)
In-Reply-To: <20190610072803.10456-12-adrian.hunter@intel.com>
Commit-ID: e01f0ef509ea7e76929f24a074d241de52c6f82a
Gitweb: https://git.kernel.org/tip/e01f0ef509ea7e76929f24a074d241de52c6f82a
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Mon, 10 Jun 2019 10:28:03 +0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 17 Jun 2019 15:57:18 -0300
perf intel-pt: Add callchain to synthesized PEBS sample
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 <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190610072803.10456-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
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)];
prev parent reply other threads:[~2019-06-22 6:43 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 7:27 [PATCH 00/11] perf intel-pt: Prepare for PEBS via PT Adrian Hunter
2019-06-10 7:27 ` [PATCH 01/11] perf intel-pt: Add new packets " Adrian Hunter
2019-06-12 0:09 ` Arnaldo Carvalho de Melo
2019-06-12 5:58 ` Adrian Hunter
2019-06-12 12:41 ` Arnaldo Carvalho de Melo
2019-06-12 12:52 ` Adrian Hunter
2019-06-12 13:28 ` Arnaldo Carvalho de Melo
2019-06-13 8:13 ` Adrian Hunter
2019-07-04 16:10 ` Alexander Shishkin
2019-06-22 6:35 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 02/11] perf intel-pt: Add Intel PT packet decoder test Adrian Hunter
2019-06-22 6:36 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 03/11] perf intel-pt: Add decoder support for PEBS via PT Adrian Hunter
2019-06-22 6:37 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 04/11] perf intel-pt: Prepare to synthesize PEBS samples Adrian Hunter
2019-06-22 6:38 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 05/11] perf intel-pt: Factor out common sample preparation for re-use Adrian Hunter
2019-06-22 6:38 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 06/11] perf intel-pt: Synthesize PEBS sample basic information Adrian Hunter
2019-06-22 6:39 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:27 ` [PATCH 07/11] perf intel-pt: Add gp registers to synthesized PEBS sample Adrian Hunter
2019-06-22 6:40 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:28 ` [PATCH 08/11] perf intel-pt: Add xmm " Adrian Hunter
2019-06-22 6:40 ` [tip:perf/core] perf intel-pt: Add XMM " tip-bot for Adrian Hunter
2019-06-10 7:28 ` [PATCH 09/11] perf intel-pt: Add lbr information " Adrian Hunter
2019-06-22 6:41 ` [tip:perf/core] perf intel-pt: Add LBR " tip-bot for Adrian Hunter
2019-06-10 7:28 ` [PATCH 10/11] perf intel-pt: Add memory " Adrian Hunter
2019-06-22 6:42 ` [tip:perf/core] " tip-bot for Adrian Hunter
2019-06-10 7:28 ` [PATCH 11/11] perf intel-pt: Add callchain " Adrian Hunter
2019-06-22 6:43 ` tip-bot for Adrian Hunter [this message]
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