From: Adrian Hunter <adrian.hun...@intel.com>
Add support for decoding an Instruction Trace.
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/Documentation/perf-report.txt | 21 +++++++++++++++++++++
tools/perf/builtin-report.c | 12 ++++++++++++
2 files changed, 33 insertions(+)
diff --git a/tools/perf/Documentation/perf-report.txt
b/tools/perf/Documentation/perf-report.txt
index 10a2798..0c10bfb 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -237,6 +237,27 @@ OPTIONS
Do not show entries which have an overhead under that percent.
(Default: 0).
+-Z::
+--itrace::
+ Options for decoding Instruction Tracing data. The options are:
+
+ i synthesize instructions events
+ b synthesize branches events
+ e synthesize error events
+
+ The default is all events i.e. the same as -Zibe
+
+ In addition, the period (default 1000) for instructions events can be
+ specified in units of:
+
+ i instructions (default)
+ t ticks
+ ms milliseconds
+ us microseconds
+ ns nanoseconds
+
+ To disable decoding entirely, use --no-itrace.
+
SEE ALSO
--------
linkperf:perf-stat[1], linkperf:perf-annotate[1]
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 8cf8e66..97e3ee6 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -36,6 +36,8 @@
#include "util/data.h"
#include "arch/common.h"
+#include "util/itrace.h"
+
#include <dlfcn.h>
#include <linux/bitmap.h>
@@ -768,6 +770,7 @@ parse_percent_limit(const struct option *opt, const char
*str,
int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
{
struct perf_session *session;
+ struct itrace_synth_opts itrace_synth_opts = {0};
struct stat st;
bool has_br_stack = false;
int branch_mode = -1;
@@ -790,6 +793,10 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
.attr = perf_event__process_attr,
.tracing_data = perf_event__process_tracing_data,
.build_id = perf_event__process_build_id,
+ .id_index = perf_event__process_id_index,
+ .itrace_info = perf_event__process_itrace_info,
+ .itrace = perf_event__process_itrace,
+ .itrace_error = perf_event__count_itrace_error,
.ordered_samples = true,
.ordering_requires_timestamps = true,
},
@@ -884,6 +891,9 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
OPT_CALLBACK(0, "percent-limit", &report, "percent",
"Don't show entries under that percent",
parse_percent_limit),
+ OPT_CALLBACK_OPTARG('Z', "itrace", &itrace_synth_opts, NULL, "opts",
+ "Instruction Tracing options",
+ itrace_parse_synth_opts),
OPT_END()
};
struct perf_data_file file = {
@@ -919,6 +929,8 @@ repeat:
if (session == NULL)
return -ENOMEM;
+ session->itrace_synth_opts = &itrace_synth_opts;
+
report.session = session;
has_br_stack = perf_header__has_feat(&session->header,
--
1.8.5.1
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