From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@gmail.com>,
Stephane Eranian <eranian@google.com>
Subject: [PATCH V3 09/25] perf tools: Add support for PERF_RECORD_ITRACE_START
Date: Fri, 24 Apr 2015 22:29:51 +0300 [thread overview]
Message-ID: <1429903807-20559-10-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1429903807-20559-1-git-send-email-adrian.hunter@intel.com>
Add support for the PERF_RECORD_ITRACE_START event type.
This event can be used to determine the pid and tid that
are running when Instruction Tracing starts. Generally
that information would come from a sched_switch event
but, at the start, no sched_switch events may yet have
been recorded.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/builtin-inject.c | 1 +
tools/perf/util/event.c | 18 ++++++++++++++++++
tools/perf/util/event.h | 11 +++++++++++
tools/perf/util/machine.c | 11 +++++++++++
tools/perf/util/machine.h | 2 ++
tools/perf/util/session.c | 15 +++++++++++++++
tools/perf/util/tool.h | 1 +
7 files changed, 59 insertions(+)
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 3e8f730..d6a47e8 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -559,6 +559,7 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
.exit = perf_event__repipe,
.lost = perf_event__repipe,
.aux = perf_event__repipe,
+ .itrace_start = perf_event__repipe,
.read = perf_event__repipe_sample,
.throttle = perf_event__repipe,
.unthrottle = perf_event__repipe,
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 724ffde..db52609 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -24,6 +24,7 @@ static const char *perf_event__names[] = {
[PERF_RECORD_READ] = "READ",
[PERF_RECORD_SAMPLE] = "SAMPLE",
[PERF_RECORD_AUX] = "AUX",
+ [PERF_RECORD_ITRACE_START] = "ITRACE_START",
[PERF_RECORD_HEADER_ATTR] = "ATTR",
[PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
[PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
@@ -704,6 +705,14 @@ int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
return machine__process_aux_event(machine, event);
}
+int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_itrace_start_event(machine, event);
+}
+
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
{
return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n",
@@ -776,6 +785,12 @@ size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "");
}
+size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " pid: %u tid: %u\n",
+ event->itrace_start.pid, event->itrace_start.tid);
+}
+
size_t perf_event__fprintf(union perf_event *event, FILE *fp)
{
size_t ret = fprintf(fp, "PERF_RECORD_%s",
@@ -798,6 +813,9 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp)
case PERF_RECORD_AUX:
ret += perf_event__fprintf_aux(event, fp);
break;
+ case PERF_RECORD_ITRACE_START:
+ ret += perf_event__fprintf_itrace_start(event, fp);
+ break;
default:
ret += fprintf(fp, "\n");
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index b3c350e..7eecd5e 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -330,6 +330,11 @@ struct aux_event {
u64 flags;
};
+struct itrace_start_event {
+ struct perf_event_header header;
+ u32 pid, tid;
+};
+
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@@ -349,6 +354,7 @@ union perf_event {
struct auxtrace_event auxtrace;
struct auxtrace_error_event auxtrace_error;
struct aux_event aux;
+ struct itrace_start_event itrace_start;
};
void perf_event__print_totals(void);
@@ -388,6 +394,10 @@ int perf_event__process_aux(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine);
+int perf_event__process_itrace_start(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
int perf_event__process_mmap(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@@ -446,6 +456,7 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
size_t perf_event__fprintf(union perf_event *event, FILE *fp);
u64 kallsyms__get_function_start(const char *kallsyms_filename,
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index a7ad511..2f47110 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -494,6 +494,14 @@ int machine__process_aux_event(struct machine *machine __maybe_unused,
return 0;
}
+int machine__process_itrace_start_event(struct machine *machine __maybe_unused,
+ union perf_event *event)
+{
+ if (dump_trace)
+ perf_event__fprintf_itrace_start(event, stdout);
+ return 0;
+}
+
struct map *machine__new_module(struct machine *machine, u64 start,
const char *filename)
{
@@ -1341,6 +1349,9 @@ int machine__process_event(struct machine *machine, union perf_event *event,
ret = machine__process_lost_event(machine, event, sample); break;
case PERF_RECORD_AUX:
ret = machine__process_aux_event(machine, event); break;
+ case PERF_RECORD_ITRACE_START:
+ ret = machine__process_itrace_start_event(machine, event);
+ break;
default:
ret = -1;
break;
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index fc5432a..1d99296 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -83,6 +83,8 @@ int machine__process_lost_event(struct machine *machine, union perf_event *event
struct perf_sample *sample);
int machine__process_aux_event(struct machine *machine,
union perf_event *event);
+int machine__process_itrace_start_event(struct machine *machine,
+ union perf_event *event);
int machine__process_mmap_event(struct machine *machine, union perf_event *event,
struct perf_sample *sample);
int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 0b4646c..e722107 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -327,6 +327,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
tool->lost = perf_event__process_lost;
if (tool->aux == NULL)
tool->aux = perf_event__process_aux;
+ if (tool->itrace_start == NULL)
+ tool->itrace_start = perf_event__process_itrace_start;
if (tool->read == NULL)
tool->read = process_event_sample_stub;
if (tool->throttle == NULL)
@@ -455,6 +457,16 @@ static void perf_event__aux_swap(union perf_event *event, bool sample_id_all)
swap_sample_id_all(event, &event->aux + 1);
}
+static void perf_event__itrace_start_swap(union perf_event *event,
+ bool sample_id_all)
+{
+ event->itrace_start.pid = bswap_32(event->itrace_start.pid);
+ event->itrace_start.tid = bswap_32(event->itrace_start.tid);
+
+ if (sample_id_all)
+ swap_sample_id_all(event, &event->itrace_start + 1);
+}
+
static void perf_event__throttle_swap(union perf_event *event,
bool sample_id_all)
{
@@ -593,6 +605,7 @@ static perf_event__swap_op perf_event__swap_ops[] = {
[PERF_RECORD_UNTHROTTLE] = perf_event__throttle_swap,
[PERF_RECORD_SAMPLE] = perf_event__all64_swap,
[PERF_RECORD_AUX] = perf_event__aux_swap,
+ [PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
[PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
[PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
[PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
@@ -1044,6 +1057,8 @@ static int machines__deliver_event(struct machines *machines,
return tool->unthrottle(tool, event, sample, machine);
case PERF_RECORD_AUX:
return tool->aux(tool, event, sample, machine);
+ case PERF_RECORD_ITRACE_START:
+ return tool->itrace_start(tool, event, sample, machine);
default:
++evlist->stats.nr_unknown_events;
return -1;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index 8288caf..7f282ad 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -44,6 +44,7 @@ struct perf_tool {
exit,
lost,
aux,
+ itrace_start,
throttle,
unthrottle;
event_attr_op attr;
--
1.9.1
next prev parent reply other threads:[~2015-04-24 19:37 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-24 19:29 [PATCH V3 00/25] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 01/25] perf tools: Amend mmap ref counting for the AUX area mmap Adrian Hunter
2015-05-06 3:11 ` [tip:perf/core] perf evlist: " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 02/25] perf script: Always allow fields 'addr' and 'cpu' for auxtrace Adrian Hunter
2015-05-06 3:12 ` [tip:perf/core] " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 03/25] perf report: Add Instruction Tracing support Adrian Hunter
2015-05-06 3:12 ` [tip:perf/core] " tip-bot for Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 04/25] perf tools: Add AUX area tracing index Adrian Hunter
2015-04-28 12:07 ` Jiri Olsa
2015-04-29 11:26 ` Adrian Hunter
2015-04-28 12:32 ` Jiri Olsa
2015-04-29 12:11 ` Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 05/25] perf tools: Hit all build ids when AUX area tracing Adrian Hunter
2015-04-28 12:45 ` Jiri Olsa
2015-04-29 12:24 ` Adrian Hunter
2015-04-29 15:26 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 06/25] perf tools: Add build option NO_AUXTRACE to exclude " Adrian Hunter
2015-04-28 12:59 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 07/25] perf auxtrace: Add option to synthesize events for transactions Adrian Hunter
2015-04-28 13:02 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 08/25] perf tools: Add support for PERF_RECORD_AUX Adrian Hunter
2015-04-28 13:09 ` Jiri Olsa
2015-04-24 19:29 ` Adrian Hunter [this message]
2015-04-24 19:29 ` [PATCH V3 10/25] perf tools: Add AUX area tracing Snapshot Mode Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 11/25] perf record: Add AUX area tracing Snapshot Mode support Adrian Hunter
2015-04-28 13:24 ` Jiri Olsa
2015-04-29 13:14 ` Adrian Hunter
2015-04-29 15:23 ` Jiri Olsa
2015-04-24 19:29 ` [PATCH V3 12/25] perf auxtrace: Add Intel PT as an AUX area tracing type Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 13/25] perf tools: Add Intel PT packet decoder Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 14/25] perf tools: Add Intel PT instruction decoder Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 15/25] perf tools: Add Intel PT log Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 16/25] perf tools: Add Intel PT decoder Adrian Hunter
2015-04-24 19:29 ` [PATCH V3 17/25] perf tools: Add Intel PT support Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 18/25] perf tools: Take Intel PT into use Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 19/25] perf tools: Allow auxtrace data alignment Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 20/25] perf tools: Add Intel BTS support Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 21/25] perf tools: Output sample flags and insn_len from intel_pt Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 22/25] perf tools: Output sample flags and insn_len from intel_bts Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 23/25] perf tools: Intel PT to always update thread stack trace number Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 24/25] perf tools: Intel BTS " Adrian Hunter
2015-04-24 19:30 ` [PATCH V3 25/25] perf tools: Add example call-graph script Adrian Hunter
2015-04-24 20:33 ` [PATCH V3 00/25] perf tools: Introduce an abstraction for AUX Area and Instruction Tracing Arnaldo Carvalho de Melo
2015-04-28 14:33 ` Arnaldo Carvalho de Melo
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