linux-kernel - [PATCH 5/5] perf/script: add support for skid ip

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Date:   Thu, 15 Jun 2017 06:56:29 -0700
From:   Stephane Eranian <eranian@...gle.com>
To:     linux-kernel@...r.kernel.org
Cc:     acme@...hat.com, peterz@...radead.org, mingo@...e.hu,
        ak@...ux.intel.com, kan.liang@...el.com, jolsa@...hat.com
Subject: [PATCH 5/5] perf/script: add support for skid ip

This patch adds a skid_ip field to perf script
to dump the raw value of the PERF_SAMPLE_SKID_IP
field in each sample.

$ perf script -F ip,skid_ip ......

Signed-off-by: Stephane Eranian <eranian@...gle.com>
---
 tools/perf/builtin-script.c | 12 +++++++++++-
 tools/perf/util/session.c   |  2 +-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 4761b0d7fcb5..ba6720cf70ce 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -85,6 +85,7 @@ enum perf_output_field {
 	PERF_OUTPUT_INSN	    = 1U << 21,
 	PERF_OUTPUT_INSNLEN	    = 1U << 22,
 	PERF_OUTPUT_BRSTACKINSN	    = 1U << 23,
+	PERF_OUTPUT_SKID_IP	    = 1U << 24,
 };
 
 struct output_option {
@@ -115,6 +116,7 @@ struct output_option {
 	{.str = "insn", .field = PERF_OUTPUT_INSN},
 	{.str = "insnlen", .field = PERF_OUTPUT_INSNLEN},
 	{.str = "brstackinsn", .field = PERF_OUTPUT_BRSTACKINSN},
+	{.str = "skid_ip", .field = PERF_OUTPUT_SKID_IP},
 };
 
 /* default set to maintain compatibility with current format */
@@ -1125,6 +1127,11 @@ static size_t data_src__printf(u64 data_src)
 	return printf("%-*s", maxlen, out);
 }
 
+static void print_sample_skid_ip(struct perf_sample *sample)
+{
+	printf(" %"PRIx64" ", sample->skid_ip);
+}
+
 static void process_event(struct perf_script *script,
 			  struct perf_sample *sample, struct perf_evsel *evsel,
 			  struct addr_location *al,
@@ -1193,7 +1200,10 @@ static void process_event(struct perf_script *script,
 
 	if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
 		print_sample_bpf_output(sample);
-	print_insn(sample, attr, thread, machine);
+
+	if (PRINT_FIELD(SKID_IP))
+		print_sample_skid_ip(sample);
+
 	printf("\n");
 }
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 0bfc1051c708..51b90630cb32 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1125,7 +1125,7 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
 		sample_read__printf(sample, evsel->attr.read_format);
 
 	if (sample_type & PERF_SAMPLE_SKID_IP)
-		printf("... skid_ip: %" PRIu64 "\n", sample->skid_ip);
+		printf("... skid_ip: 0x%" PRIx64 "\n", sample->skid_ip);
 }
 
 static struct machine *machines__find_for_cpumode(struct machines *machines,
-- 
2.13.1.518.g3df882009-goog