[PATCH V5 24/25] perf itrace: Add option to synthesize events for transactions

[Adrian Hunter]

Add Instruction Tracing option 'x' to synthesize events for
transactions. This will be used by Intel PT to synthesize
an event record for each TSX start, commit or abort.

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
 tools/perf/Documentation/perf-report.txt | 9 +++++----
 tools/perf/Documentation/perf-script.txt | 9 +++++----
 tools/perf/util/itrace.c                 | 5 ++++-
 tools/perf/util/itrace.h                 | 2 ++
 4 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 835d1e0..1a3c49b 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -326,11 +326,12 @@ OPTIONS
 		b	synthesize branches events
 		c	synthesize branches events (calls only)
 		r	synthesize branches events (returns only)
+		x	synthesize transactions events
 		e	synthesize error events
 		d	create a debug log
-		g	synthesize a call chain for instructions events
+		g	synthesize a call chain (use with i or x)
 
-	The default is all events i.e. the same as -Zibe
+	The default is all events i.e. the same as -Zibxe
 
 	In addition, the period (default 1000) for instructions events can be
 	specified in units of:
@@ -341,8 +342,8 @@ OPTIONS
 		us	microseconds
 		ns	nanoseconds
 
-	Also the call chain size (default 16, max. 1024) for instructions
-	events can be specified.
+	Also the call chain size (default 16, max. 1024) for instructions or
+	transactions events can be specified.
 
 	To disable decoding entirely, use --no-itrace.
 
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 9a4aea1..2c89ca7 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -223,11 +223,12 @@ OPTIONS
 		b	synthesize branches events
 		c	synthesize branches events (calls only)
 		r	synthesize branches events (returns only)
+		x	synthesize transactions events
 		e	synthesize error events
 		d	create a debug log
-		g	synthesize a call chain for instructions events
+		g	synthesize a call chain (use with i or x)
 
-	The default is all events i.e. the same as -Zibe
+	The default is all events i.e. the same as -Zibxe
 
 	In addition, the period (default 1000) for instructions events can be
 	specified in units of:
@@ -238,8 +239,8 @@ OPTIONS
 		us	microseconds
 		ns	nanoseconds
 
-	Also the call chain size (default 16, max. 1024) for instructions
-	events can be specified.
+	Also the call chain size (default 16, max. 1024) for instructions or
+	transactions events can be specified.
 
 	To disable decoding entirely, use --no-itrace.
 
diff --git a/tools/perf/util/itrace.c b/tools/perf/util/itrace.c
index 9eac087..9990e5c 100644
--- a/tools/perf/util/itrace.c
+++ b/tools/perf/util/itrace.c
@@ -893,6 +893,7 @@ void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts)
 {
 	synth_opts->instructions = true;
 	synth_opts->branches = true;
+	synth_opts->transactions = true;
 	synth_opts->errors = true;
 	synth_opts->period_type = PERF_ITRACE_DEFAULT_PERIOD_TYPE;
 	synth_opts->period = PERF_ITRACE_DEFAULT_PERIOD;
@@ -960,6 +961,9 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
 		case 'b':
 			synth_opts->branches = true;
 			break;
+		case 'x':
+			synth_opts->transactions = true;
+			break;
 		case 'e':
 			synth_opts->errors = true;
 			break;
@@ -975,7 +979,6 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
 			synth_opts->returns = true;
 			break;
 		case 'g':
-			synth_opts->instructions = true;
 			synth_opts->callchain = true;
 			synth_opts->callchain_sz =
 					PERF_ITRACE_DEFAULT_CALLCHAIN_SZ;
diff --git a/tools/perf/util/itrace.h b/tools/perf/util/itrace.h
index d25acc1..e5b6240 100644
--- a/tools/perf/util/itrace.h
+++ b/tools/perf/util/itrace.h
@@ -56,6 +56,7 @@ enum itrace_period_type {
  *          because 'perf inject' will write it out
  * @instructions: whether to synthesize 'instructions' events
  * @branches: whether to synthesize 'branches' events
+ * @transactions: whether to synthesize events for transactions
  * @errors: whether to synthesize decoder error events
  * @dont_decode: whether to skip decoding entirely
  * @log: write a decoding log
@@ -71,6 +72,7 @@ struct itrace_synth_opts {
 	bool			inject;
 	bool			instructions;
 	bool			branches;
+	bool			transactions;
 	bool			errors;
 	bool			dont_decode;
 	bool			log;
-- 
1.9.1

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