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Date:	Thu,  1 Oct 2015 08:45:46 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	acme@...hat.com, peterz@...radead.org, mingo@...e.hu,
	ak@...ux.intel.com, jolsa@...hat.com, namhyung@...nel.org,
	cel@...ibm.com, dsahern@...il.com, adrian.hunter@...el.com,
	johnmccutchan@...gle.com, brendan.d.gregg@...il.com
Subject: [PATCH v7 2/5] perf tools: pass session to mmap processing code

This patch passes the perf_session to the mmap processing callbacks.
This is needed in a later patch to get to the event list and sample_type.

A consequence of the patch is that the number of argument to
machine_deliver_event() is reduced.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
---
 tools/perf/builtin-inject.c | 14 ++++++++------
 tools/perf/builtin-script.c | 14 ++++++--------
 tools/perf/util/event.c     |  6 ++++--
 tools/perf/util/event.h     |  6 ++++--
 tools/perf/util/session.c   | 43 +++++++++++++++++++++++++------------------
 tools/perf/util/tool.h      | 11 ++++++++---
 6 files changed, 55 insertions(+), 39 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 0a945d2..db5393e 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -224,11 +224,12 @@ static int perf_event__repipe_sample(struct perf_tool *tool,
 static int perf_event__repipe_mmap(struct perf_tool *tool,
 				   union perf_event *event,
 				   struct perf_sample *sample,
-				   struct machine *machine)
+				   struct machine *machine,
+				   struct perf_session *session)
 {
 	int err;
 
-	err = perf_event__process_mmap(tool, event, sample, machine);
+	err = perf_event__process_mmap(tool, event, sample, machine, session);
 	perf_event__repipe(tool, event, sample, machine);
 
 	return err;
@@ -237,11 +238,12 @@ static int perf_event__repipe_mmap(struct perf_tool *tool,
 static int perf_event__repipe_mmap2(struct perf_tool *tool,
 				   union perf_event *event,
 				   struct perf_sample *sample,
-				   struct machine *machine)
+				   struct machine *machine,
+				   struct perf_session *session)
 {
 	int err;
 
-	err = perf_event__process_mmap2(tool, event, sample, machine);
+	err = perf_event__process_mmap2(tool, event, sample, machine, session);
 	perf_event__repipe(tool, event, sample, machine);
 
 	return err;
@@ -669,8 +671,8 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
 	struct perf_inject inject = {
 		.tool = {
 			.sample		= perf_event__repipe_sample,
-			.mmap		= perf_event__repipe,
-			.mmap2		= perf_event__repipe,
+			.mmap		= perf_event__repipe_mmap,
+			.mmap2		= perf_event__repipe_mmap,
 			.comm		= perf_event__repipe,
 			.fork		= perf_event__repipe,
 			.exit		= perf_event__repipe,
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 8ce1c6b..93d09f2 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -790,14 +790,13 @@ static int process_exit_event(struct perf_tool *tool,
 static int process_mmap_event(struct perf_tool *tool,
 			      union perf_event *event,
 			      struct perf_sample *sample,
-			      struct machine *machine)
+			      struct machine *machine,
+			      struct perf_session *session)
 {
 	struct thread *thread;
-	struct perf_script *script = container_of(tool, struct perf_script, tool);
-	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
 
-	if (perf_event__process_mmap(tool, event, sample, machine) < 0)
+	if (perf_event__process_mmap(tool, event, sample, machine, session) < 0)
 		return -1;
 
 	thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
@@ -821,14 +820,13 @@ static int process_mmap_event(struct perf_tool *tool,
 static int process_mmap2_event(struct perf_tool *tool,
 			      union perf_event *event,
 			      struct perf_sample *sample,
-			      struct machine *machine)
+			      struct machine *machine,
+			      struct perf_session *session)
 {
 	struct thread *thread;
-	struct perf_script *script = container_of(tool, struct perf_script, tool);
-	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
 
-	if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
+	if (perf_event__process_mmap2(tool, event, sample, machine, session) < 0)
 		return -1;
 
 	thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index b1bb348..555f876 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -786,7 +786,8 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
-			     struct machine *machine)
+			     struct machine *machine,
+			     struct perf_session *session __maybe_unused)
 {
 	return machine__process_mmap_event(machine, event, sample);
 }
@@ -794,7 +795,8 @@ int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
-			     struct machine *machine)
+			     struct machine *machine,
+			     struct perf_session *session __maybe_unused)
 {
 	return machine__process_mmap2_event(machine, event, sample);
 }
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index a0dbcbd..a33d50d 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -434,11 +434,13 @@ int perf_event__process_switch(struct perf_tool *tool,
 int perf_event__process_mmap(struct perf_tool *tool,
 			     union perf_event *event,
 			     struct perf_sample *sample,
-			     struct machine *machine);
+			     struct machine *machine,
+			     struct perf_session *session);
 int perf_event__process_mmap2(struct perf_tool *tool,
 			     union perf_event *event,
 			     struct perf_sample *sample,
-			     struct machine *machine);
+			     struct machine *machine,
+			     struct perf_session *session);
 int perf_event__process_fork(struct perf_tool *tool,
 			     union perf_event *event,
 			     struct perf_sample *sample,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 84a02eae..fcbf1a0 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -21,7 +21,6 @@
 static int perf_session__deliver_event(struct perf_session *session,
 				       union perf_event *event,
 				       struct perf_sample *sample,
-				       struct perf_tool *tool,
 				       u64 file_offset);
 
 static int perf_session__open(struct perf_session *session)
@@ -108,7 +107,7 @@ static int ordered_events__deliver_event(struct ordered_events *oe,
 	}
 
 	return perf_session__deliver_event(session, event->event, &sample,
-					   session->tool, event->file_offset);
+					   event->file_offset);
 }
 
 struct perf_session *perf_session__new(struct perf_data_file *file,
@@ -214,7 +213,6 @@ static int process_event_sample_stub(struct perf_tool *tool __maybe_unused,
 	dump_printf(": unhandled!\n");
 	return 0;
 }
-
 static int process_event_stub(struct perf_tool *tool __maybe_unused,
 			      union perf_event *event __maybe_unused,
 			      struct perf_sample *sample __maybe_unused,
@@ -224,6 +222,17 @@ static int process_event_stub(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+
+static int process_event_mmap_stub(struct perf_tool *tool __maybe_unused,
+			           union perf_event *event __maybe_unused,
+			           struct perf_sample *sample __maybe_unused,
+			           struct machine *machine __maybe_unused,
+			           struct perf_session *session __maybe_unused)
+{
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 static int process_build_id_stub(struct perf_tool *tool __maybe_unused,
 				 union perf_event *event __maybe_unused,
 				 struct perf_session *session __maybe_unused)
@@ -301,9 +310,9 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 	if (tool->sample == NULL)
 		tool->sample = process_event_sample_stub;
 	if (tool->mmap == NULL)
-		tool->mmap = process_event_stub;
+		tool->mmap = process_event_mmap_stub;
 	if (tool->mmap2 == NULL)
-		tool->mmap2 = process_event_stub;
+		tool->mmap2 = process_event_mmap_stub;
 	if (tool->comm == NULL)
 		tool->comm = process_event_stub;
 	if (tool->fork == NULL)
@@ -1047,12 +1056,14 @@ static int
 					    &sample->read.one, machine);
 }
 
-static int machines__deliver_event(struct machines *machines,
-				   struct perf_evlist *evlist,
+static int machines__deliver_event(struct perf_session *session,
 				   union perf_event *event,
 				   struct perf_sample *sample,
-				   struct perf_tool *tool, u64 file_offset)
+				   u64 file_offset)
 {
+	struct machines *machines = &session->machines;
+	struct perf_evlist *evlist = session->evlist;
+	struct perf_tool *tool = session->tool;
 	struct perf_evsel *evsel;
 	struct machine *machine;
 
@@ -1075,11 +1086,11 @@ static int machines__deliver_event(struct machines *machines,
 		}
 		return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
 	case PERF_RECORD_MMAP:
-		return tool->mmap(tool, event, sample, machine);
+		return tool->mmap(tool, event, sample, machine, session);
 	case PERF_RECORD_MMAP2:
 		if (event->header.misc & PERF_RECORD_MISC_PROC_MAP_PARSE_TIMEOUT)
 			++evlist->stats.nr_proc_map_timeout;
-		return tool->mmap2(tool, event, sample, machine);
+		return tool->mmap2(tool, event, sample, machine, session);
 	case PERF_RECORD_COMM:
 		return tool->comm(tool, event, sample, machine);
 	case PERF_RECORD_FORK:
@@ -1119,19 +1130,17 @@ static int machines__deliver_event(struct machines *machines,
 static int perf_session__deliver_event(struct perf_session *session,
 				       union perf_event *event,
 				       struct perf_sample *sample,
-				       struct perf_tool *tool,
 				       u64 file_offset)
 {
 	int ret;
 
-	ret = auxtrace__process_event(session, event, sample, tool);
+	ret = auxtrace__process_event(session, event, sample, session->tool);
 	if (ret < 0)
 		return ret;
 	if (ret > 0)
 		return 0;
 
-	return machines__deliver_event(&session->machines, session->evlist,
-				       event, sample, tool, file_offset);
+	return machines__deliver_event(session, event, sample, file_offset);
 }
 
 static s64 perf_session__process_user_event(struct perf_session *session,
@@ -1189,14 +1198,13 @@ int perf_session__deliver_synth_event(struct perf_session *session,
 				      struct perf_sample *sample)
 {
 	struct perf_evlist *evlist = session->evlist;
-	struct perf_tool *tool = session->tool;
 
 	events_stats__inc(&evlist->stats, event->header.type);
 
 	if (event->header.type >= PERF_RECORD_USER_TYPE_START)
 		return perf_session__process_user_event(session, event, 0);
 
-	return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0);
+	return machines__deliver_event(session, event, sample, 0);
 }
 
 static void event_swap(union perf_event *event, bool sample_id_all)
@@ -1295,8 +1303,7 @@ static s64 perf_session__process_event(struct perf_session *session,
 			return ret;
 	}
 
-	return perf_session__deliver_event(session, event, &sample, tool,
-					   file_offset);
+	return perf_session__deliver_event(session, event, &sample, file_offset);
 }
 
 void perf_event_header__bswap(struct perf_event_header *hdr)
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index cab8cc2..b4f94fe 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -34,12 +34,15 @@ typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
 typedef s64 (*event_op3)(struct perf_tool *tool, union perf_event *event,
 			 struct perf_session *session);
 
+
+typedef int (*event_op4)(struct perf_tool *tool, union perf_event *event,
+			struct perf_sample *sample, struct machine *machine,
+			struct perf_session *session);
+
 struct perf_tool {
 	event_sample	sample,
 			read;
-	event_op	mmap,
-			mmap2,
-			comm,
+	event_op	comm,
 			fork,
 			exit,
 			lost,
@@ -57,6 +60,8 @@ struct perf_tool {
 			auxtrace_info,
 			auxtrace_error;
 	event_op3	auxtrace;
+	event_op4	mmap,
+			mmap2;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;
 };
-- 
1.9.1

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