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Message-ID: <tip-73f75fb1bdc572f97f1eb375f2bbb68cfcba077c@git.kernel.org>
Date: Tue, 5 May 2015 20:01:55 -0700
From: tip-bot for Adrian Hunter <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hpa@...or.com, dsahern@...il.com,
acme@...hat.com, eranian@...gle.com, fweisbec@...il.com,
peterz@...radead.org, mingo@...nel.org, tglx@...utronix.de,
jolsa@...hat.com, adrian.hunter@...el.com, namhyung@...il.com
Subject: [tip:perf/core] perf auxtrace:
Add processing for AUX area tracing events
Commit-ID: 73f75fb1bdc572f97f1eb375f2bbb68cfcba077c
Gitweb: http://git.kernel.org/tip/73f75fb1bdc572f97f1eb375f2bbb68cfcba077c
Author: Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Thu, 9 Apr 2015 18:53:53 +0300
Committer: Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 29 Apr 2015 10:37:55 -0300
perf auxtrace: Add processing for AUX area tracing events
Provide hooks so that an AUX area decoder can process AUX area tracing
events.
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1428594864-29309-14-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/util/auxtrace.c | 52 +++++++++++++++++++++++++++++++++++++++++++++-
tools/perf/util/auxtrace.h | 13 ++++++++++++
2 files changed, 64 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index e13b1a1..c4515e1 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -615,6 +615,53 @@ out_free:
return err;
}
+static bool auxtrace__dont_decode(struct perf_session *session)
+{
+ return !session->itrace_synth_opts ||
+ session->itrace_synth_opts->dont_decode;
+}
+
+int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_session *session __maybe_unused)
+{
+ enum auxtrace_type type = event->auxtrace_info.type;
+
+ if (dump_trace)
+ fprintf(stdout, " type: %u\n", type);
+
+ switch (type) {
+ case PERF_AUXTRACE_UNKNOWN:
+ default:
+ return -EINVAL;
+ }
+}
+
+s64 perf_event__process_auxtrace(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_session *session)
+{
+ s64 err;
+
+ if (dump_trace)
+ fprintf(stdout, " size: %#"PRIx64" offset: %#"PRIx64" ref: %#"PRIx64" idx: %u tid: %d cpu: %d\n",
+ event->auxtrace.size, event->auxtrace.offset,
+ event->auxtrace.reference, event->auxtrace.idx,
+ event->auxtrace.tid, event->auxtrace.cpu);
+
+ if (auxtrace__dont_decode(session))
+ return event->auxtrace.size;
+
+ if (!session->auxtrace || event->header.type != PERF_RECORD_AUXTRACE)
+ return -EINVAL;
+
+ err = session->auxtrace->process_auxtrace_event(session, event, tool);
+ if (err < 0)
+ return err;
+
+ return event->auxtrace.size;
+}
+
#define PERF_ITRACE_DEFAULT_PERIOD_TYPE PERF_ITRACE_PERIOD_NANOSECS
#define PERF_ITRACE_DEFAULT_PERIOD 100000
#define PERF_ITRACE_DEFAULT_CALLCHAIN_SZ 16
@@ -801,8 +848,11 @@ void events_stats__auxtrace_error_warn(const struct events_stats *stats)
int perf_event__process_auxtrace_error(struct perf_tool *tool __maybe_unused,
union perf_event *event,
- struct perf_session *session __maybe_unused)
+ struct perf_session *session)
{
+ if (auxtrace__dont_decode(session))
+ return 0;
+
perf_event__fprintf_auxtrace_error(event, stdout);
return 0;
}
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index c3514f3..ba78d82 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -36,6 +36,10 @@ struct record_opts;
struct auxtrace_info_event;
struct events_stats;
+enum auxtrace_type {
+ PERF_AUXTRACE_UNKNOWN,
+};
+
enum itrace_period_type {
PERF_ITRACE_PERIOD_INSTRUCTIONS,
PERF_ITRACE_PERIOD_TICKS,
@@ -87,6 +91,9 @@ struct auxtrace {
union perf_event *event,
struct perf_sample *sample,
struct perf_tool *tool);
+ int (*process_auxtrace_event)(struct perf_session *session,
+ union perf_event *event,
+ struct perf_tool *tool);
int (*flush_events)(struct perf_session *session,
struct perf_tool *tool);
void (*free_events)(struct perf_session *session);
@@ -348,6 +355,12 @@ int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr,
struct perf_tool *tool,
struct perf_session *session,
perf_event__handler_t process);
+int perf_event__process_auxtrace_info(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_session *session);
+s64 perf_event__process_auxtrace(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_session *session);
int perf_event__process_auxtrace_error(struct perf_tool *tool,
union perf_event *event,
struct perf_session *session);
--
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