[PATCH V2 23/37] perf auxtrace: Add itrace option to output ptwrite events

Adrian Hunter
2017-05-26T08:24:20Z

Add itrace option to output ptwrite events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/Documentation/itrace.txt | 7 ++++---
tools/perf/util/auxtrace.c | 4 ++++
tools/perf/util/auxtrace.h | 2 ++
3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index e2a4c5e0dbe5..deafd16692b6 100644
--- a/tools/perf/Documentation/itrace.txt
+++ b/tools/perf/Documentation/itrace.txt
@@ -3,13 +3,14 @@
c synthesize branches events (calls only)
r synthesize branches events (returns only)
x synthesize transactions events
+ w synthesize ptwrite events
e synthesize error events
d create a debug log
g synthesize a call chain (use with i or x)
l synthesize last branch entries (use with i or x)
s skip initial number of events

- The default is all events i.e. the same as --itrace=ibxe
+ The default is all events i.e. the same as --itrace=ibxwe

In addition, the period (default 100000) for instructions events
can be specified in units of:
@@ -26,8 +27,8 @@
Also the number of last branch entries (default 64, max. 1024) for
instructions or transactions events can be specified.

- It is also possible to skip events generated (instructions, branches, transactions)
- at the beginning. This is useful to ignore initialization code.
+ It is also possible to skip events generated (instructions, branches, transactions,
+ ptwrite) at the beginning. This is useful to ignore initialization code.

--itrace=i0nss1000000

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 0daf63b9ee3e..baad91ed1e05 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -947,6 +947,7 @@ 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->ptwrites = true;
synth_opts->errors = true;
synth_opts->period_type = PERF_ITRACE_DEFAULT_PERIOD_TYPE;
synth_opts->period = PERF_ITRACE_DEFAULT_PERIOD;
@@ -1030,6 +1031,9 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
case 'x':
synth_opts->transactions = true;
break;
+ case 'w':
+ synth_opts->ptwrites = true;
+ break;
case 'e':
synth_opts->errors = true;
break;
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 9f0de72d58e2..b48afb2f18f3 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -59,6 +59,7 @@ enum itrace_period_type {
* @instructions: whether to synthesize 'instructions' events
* @branches: whether to synthesize 'branches' events
* @transactions: whether to synthesize events for transactions
+ * @ptwrites: whether to synthesize events for ptwrites
* @errors: whether to synthesize decoder error events
* @dont_decode: whether to skip decoding entirely
* @log: write a decoding log
@@ -79,6 +80,7 @@ struct itrace_synth_opts {
bool instructions;
bool branches;
bool transactions;
+ bool ptwrites;
bool errors;
bool dont_decode;
bool log;
--
1.9.1