perf tools: Kill event_t typedef, use 'union perf_event' instead

And move the event_t methods to the perf_event__ too.

No code changes, just namespace consistency.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

27 files changed, 475 insertions, 439 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index ef367513541..70067862e07 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -58,12 +58,13 @@ static int hists__add_entry(struct hists *self, struct addr_location *al)
 	return hist_entry__inc_addr_samples(he, al->addr);
 }
 
-static int process_sample_event(event_t *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
 				struct perf_session *session)
 {
 	struct addr_location al;
 
-	if (event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
+	if (perf_event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
 		pr_warning("problem processing %d event, skipping it.\n",
 			   event->header.type);
 		return -1;
@@ -372,9 +373,9 @@ find_next:
 
 static struct perf_event_ops event_ops = {
 	.sample	= process_sample_event,
-	.mmap	= event__process_mmap,
-	.comm	= event__process_comm,
-	.fork	= event__process_task,
+	.mmap	= perf_event__process_mmap,
+	.comm	= perf_event__process_comm,
+	.fork	= perf_event__process_task,
 	.ordered_samples = true,
 	.ordering_requires_timestamps = true,
 };
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 0822149dc76..6b7d91160ec 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -30,13 +30,13 @@ static int hists__add_entry(struct hists *self,
 	return -ENOMEM;
 }
 
-static int diff__process_sample_event(event_t *event,
+static int diff__process_sample_event(union perf_event *event,
 				      struct perf_sample *sample,
 				      struct perf_session *session)
 {
 	struct addr_location al;
 
-	if (event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
+	if (perf_event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
 		pr_warning("problem processing %d event, skipping it.\n",
 			   event->header.type);
 		return -1;
@@ -56,11 +56,11 @@ static int diff__process_sample_event(event_t *event,
 
 static struct perf_event_ops event_ops = {
 	.sample	= diff__process_sample_event,
-	.mmap	= event__process_mmap,
-	.comm	= event__process_comm,
-	.exit	= event__process_task,
-	.fork	= event__process_task,
-	.lost	= event__process_lost,
+	.mmap	= perf_event__process_mmap,
+	.comm	= perf_event__process_comm,
+	.exit	= perf_event__process_task,
+	.fork	= perf_event__process_task,
+	.lost	= perf_event__process_lost,
 	.ordered_samples = true,
 	.ordering_requires_timestamps = true,
 };
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 4c9388ce878..e29f04ed339 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -16,8 +16,8 @@
 static char		const *input_name = "-";
 static bool		inject_build_ids;
 
-static int event__repipe_synth(event_t *event,
-			       struct perf_session *session __used)
+static int perf_event__repipe_synth(union perf_event *event,
+				    struct perf_session *session __used)
 {
 	uint32_t size;
 	void *buf = event;
@@ -36,41 +36,44 @@ static int event__repipe_synth(event_t *event,
 	return 0;
 }
 
-static int event__repipe(event_t *event, struct perf_sample *sample __used,
-			 struct perf_session *session)
+static int perf_event__repipe(union perf_event *event,
+			      struct perf_sample *sample __used,
+			      struct perf_session *session)
 {
-	return event__repipe_synth(event, session);
+	return perf_event__repipe_synth(event, session);
 }
 
-static int event__repipe_mmap(event_t *self, struct perf_sample *sample,
-			      struct perf_session *session)
+static int perf_event__repipe_mmap(union perf_event *event,
+				   struct perf_sample *sample,
+				   struct perf_session *session)
 {
 	int err;
 
-	err = event__process_mmap(self, sample, session);
-	event__repipe(self, sample, session);
+	err = perf_event__process_mmap(event, sample, session);
+	perf_event__repipe(event, sample, session);
 
 	return err;
 }
 
-static int event__repipe_task(event_t *self, struct perf_sample *sample,
-			      struct perf_session *session)
+static int perf_event__repipe_task(union perf_event *event,
+				   struct perf_sample *sample,
+				   struct perf_session *session)
 {
 	int err;
 
-	err = event__process_task(self, sample, session);
-	event__repipe(self, sample, session);
+	err = perf_event__process_task(event, sample, session);
+	perf_event__repipe(event, sample, session);
 
 	return err;
 }
 
-static int event__repipe_tracing_data(event_t *self,
-				      struct perf_session *session)
+static int perf_event__repipe_tracing_data(union perf_event *event,
+					   struct perf_session *session)
 {
 	int err;
 
-	event__repipe_synth(self, session);
-	err = event__process_tracing_data(self, session);
+	perf_event__repipe_synth(event, session);
+	err = perf_event__process_tracing_data(event, session);
 
 	return err;
 }
@@ -109,8 +112,8 @@ static int dso__inject_build_id(struct dso *self, struct perf_session *session)
 	if (self->kernel)
 		misc = PERF_RECORD_MISC_KERNEL;
 
-	err = event__synthesize_build_id(self, misc, event__repipe,
-					 machine, session);
+	err = perf_event__synthesize_build_id(self, misc, perf_event__repipe,
+					      machine, session);
 	if (err) {
 		pr_err("Can't synthesize build_id event for %s\n", self->long_name);
 		return -1;
@@ -119,8 +122,9 @@ static int dso__inject_build_id(struct dso *self, struct perf_session *session)
 	return 0;
 }
 
-static int event__inject_buildid(event_t *event, struct perf_sample *sample,
-				 struct perf_session *session)
+static int perf_event__inject_buildid(union perf_event *event,
+				      struct perf_sample *sample,
+				      struct perf_session *session)
 {
 	struct addr_location al;
 	struct thread *thread;
@@ -155,24 +159,24 @@ static int event__inject_buildid(event_t *event, struct perf_sample *sample,
 	}
 
 repipe:
-	event__repipe(event, sample, session);
+	perf_event__repipe(event, sample, session);
 	return 0;
 }
 
 struct perf_event_ops inject_ops = {
-	.sample		= event__repipe,
-	.mmap		= event__repipe,
-	.comm		= event__repipe,
-	.fork		= event__repipe,
-	.exit		= event__repipe,
-	.lost		= event__repipe,
-	.read		= event__repipe,
-	.throttle	= event__repipe,
-	.unthrottle	= event__repipe,
-	.attr		= event__repipe_synth,
-	.event_type 	= event__repipe_synth,
-	.tracing_data 	= event__repipe_synth,
-	.build_id 	= event__repipe_synth,
+	.sample		= perf_event__repipe,
+	.mmap		= perf_event__repipe,
+	.comm		= perf_event__repipe,
+	.fork		= perf_event__repipe,
+	.exit		= perf_event__repipe,
+	.lost		= perf_event__repipe,
+	.read		= perf_event__repipe,
+	.throttle	= perf_event__repipe,
+	.unthrottle	= perf_event__repipe,
+	.attr		= perf_event__repipe_synth,
+	.event_type 	= perf_event__repipe_synth,
+	.tracing_data 	= perf_event__repipe_synth,
+	.build_id 	= perf_event__repipe_synth,
 };
 
 extern volatile int session_done;
@@ -190,10 +194,10 @@ static int __cmd_inject(void)
 	signal(SIGINT, sig_handler);
 
 	if (inject_build_ids) {
-		inject_ops.sample	= event__inject_buildid;
-		inject_ops.mmap		= event__repipe_mmap;
-		inject_ops.fork		= event__repipe_task;
-		inject_ops.tracing_data	= event__repipe_tracing_data;
+		inject_ops.sample	= perf_event__inject_buildid;
+		inject_ops.mmap		= perf_event__repipe_mmap;
+		inject_ops.fork		= perf_event__repipe_task;
+		inject_ops.tracing_data	= perf_event__repipe_tracing_data;
 	}
 
 	session = perf_session__new(input_name, O_RDONLY, false, true, &inject_ops);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 3c1cdcf2990..7f618f4e7b7 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -275,9 +275,8 @@ static void process_free_event(void *data,
 	s_alloc->alloc_cpu = -1;
 }
 
-static void
-process_raw_event(event_t *raw_event __used, void *data,
-		  int cpu, u64 timestamp, struct thread *thread)
+static void process_raw_event(union perf_event *raw_event __used, void *data,
+			      int cpu, u64 timestamp, struct thread *thread)
 {
 	struct event *event;
 	int type;
@@ -304,7 +303,8 @@ process_raw_event(event_t *raw_event __used, void *data,
 	}
 }
 
-static int process_sample_event(event_t *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
 				struct perf_session *session)
 {
 	struct thread *thread = perf_session__findnew(session, event->ip.pid);
@@ -325,7 +325,7 @@ static int process_sample_event(event_t *event, struct perf_sample *sample,
 
 static struct perf_event_ops event_ops = {
 	.sample			= process_sample_event,
-	.comm			= event__process_comm,
+	.comm			= perf_event__process_comm,
 	.ordered_samples	= true,
 };
 
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index c3f51279134..e00d93847c4 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -834,14 +834,14 @@ static void dump_info(void)
 		die("Unknown type of information\n");
 }
 
-static int process_sample_event(event_t *self, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event, struct perf_sample *sample,
 				struct perf_session *s)
 {
 	struct thread *thread = perf_session__findnew(s, sample->tid);
 
 	if (thread == NULL) {
 		pr_debug("problem processing %d event, skipping it.\n",
-			self->header.type);
+			event->header.type);
 		return -1;
 	}
 
@@ -852,7 +852,7 @@ static int process_sample_event(event_t *self, struct perf_sample *sample,
 
 static struct perf_event_ops eops = {
 	.sample			= process_sample_event,
-	.comm			= event__process_comm,
+	.comm			= perf_event__process_comm,
 	.ordered_samples	= true,
 };
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 5d3e4b32072..edc3555098c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -100,7 +100,7 @@ static void write_output(void *buf, size_t size)
 	}
 }
 
-static int process_synthesized_event(event_t *event,
+static int process_synthesized_event(union perf_event *event,
 				     struct perf_sample *sample __used,
 				     struct perf_session *self __used)
 {
@@ -404,7 +404,7 @@ static void atexit_header(void)
 	}
 }
 
-static void event__synthesize_guest_os(struct machine *machine, void *data)
+static void perf_event__synthesize_guest_os(struct machine *machine, void *data)
 {
 	int err;
 	struct perf_session *psession = data;
@@ -420,8 +420,8 @@ static void event__synthesize_guest_os(struct machine *machine, void *data)
 	 *method is used to avoid symbol missing when the first addr is
 	 *in module instead of in guest kernel.
 	 */
-	err = event__synthesize_modules(process_synthesized_event,
-					psession, machine);
+	err = perf_event__synthesize_modules(process_synthesized_event,
+					     psession, machine);
 	if (err < 0)
 		pr_err("Couldn't record guest kernel [%d]'s reference"
 		       " relocation symbol.\n", machine->pid);
@@ -430,11 +430,12 @@ static void event__synthesize_guest_os(struct machine *machine, void *data)
 	 * We use _stext for guest kernel because guest kernel's /proc/kallsyms
 	 * have no _text sometimes.
 	 */
-	err = event__synthesize_kernel_mmap(process_synthesized_event,
-					    psession, machine, "_text");
+	err = perf_event__synthesize_kernel_mmap(process_synthesized_event,
+						 psession, machine, "_text");
 	if (err < 0)
-		err = event__synthesize_kernel_mmap(process_synthesized_event,
-						    psession, machine, "_stext");
+		err = perf_event__synthesize_kernel_mmap(process_synthesized_event,
+							 psession, machine,
+							 "_stext");
 	if (err < 0)
 		pr_err("Couldn't record guest kernel [%d]'s reference"
 		       " relocation symbol.\n", machine->pid);
@@ -617,16 +618,16 @@ static int __cmd_record(int argc, const char **argv)
 	perf_session__set_sample_id_all(session, sample_id_all_avail);
 
 	if (pipe_output) {
-		err = event__synthesize_attrs(&session->header,
-					      process_synthesized_event,
-					      session);
+		err = perf_event__synthesize_attrs(&session->header,
+						   process_synthesized_event,
+						   session);
 		if (err < 0) {
 			pr_err("Couldn't synthesize attrs.\n");
 			return err;
 		}
 
-		err = event__synthesize_event_types(process_synthesized_event,
-						    session);
+		err = perf_event__synthesize_event_types(process_synthesized_event,
+							 session);
 		if (err < 0) {
 			pr_err("Couldn't synthesize event_types.\n");
 			return err;
@@ -641,9 +642,9 @@ static int __cmd_record(int argc, const char **argv)
 			 * return this more properly and also
 			 * propagate errors that now are calling die()
 			 */
-			err = event__synthesize_tracing_data(output, evsel_list,
-							     process_synthesized_event,
-							     session);
+			err = perf_event__synthesize_tracing_data(output, evsel_list,
+								  process_synthesized_event,
+								  session);
 			if (err <= 0) {
 				pr_err("Couldn't record tracing data.\n");
 				return err;
@@ -658,31 +659,34 @@ static int __cmd_record(int argc, const char **argv)
 		return -1;
 	}
 
-	err = event__synthesize_kernel_mmap(process_synthesized_event,
-					    session, machine, "_text");
+	err = perf_event__synthesize_kernel_mmap(process_synthesized_event,
+						 session, machine, "_text");
 	if (err < 0)
-		err = event__synthesize_kernel_mmap(process_synthesized_event,
-						    session, machine, "_stext");
+		err = perf_event__synthesize_kernel_mmap(process_synthesized_event,
+							 session, machine, "_stext");
 	if (err < 0)
 		pr_err("Couldn't record kernel reference relocation symbol\n"
 		       "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n"
 		       "Check /proc/kallsyms permission or run as root.\n");
 
-	err = event__synthesize_modules(process_synthesized_event,
-					session, machine);
+	err = perf_event__synthesize_modules(process_synthesized_event,
+					     session, machine);
 	if (err < 0)
 		pr_err("Couldn't record kernel module information.\n"
 		       "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n"
 		       "Check /proc/modules permission or run as root.\n");
 
 	if (perf_guest)
-		perf_session__process_machines(session, event__synthesize_guest_os);
+		perf_session__process_machines(session,
+					       perf_event__synthesize_guest_os);
 
 	if (!system_wide)
-		event__synthesize_thread(target_tid, process_synthesized_event,
-					 session);
+		perf_event__synthesize_thread(target_tid,
+					      process_synthesized_event,
+					      session);
 	else
-		event__synthesize_threads(process_synthesized_event, session);
+		perf_event__synthesize_threads(process_synthesized_event,
+					       session);
 
 	if (realtime_prio) {
 		struct sched_param param;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index bbbadcc0409..a6a4e5457b6 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -149,13 +149,14 @@ static int add_event_total(struct perf_session *session,
 	return 0;
 }
 
-static int process_sample_event(event_t *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
 				struct perf_session *session)
 {
 	struct addr_location al;
 	struct perf_event_attr *attr;
 
-	if (event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
+	if (perf_event__preprocess_sample(event, session, &al, sample, NULL) < 0) {
 		fprintf(stderr, "problem processing %d event, skipping it.\n",
 			event->header.type);
 		return -1;
@@ -179,7 +180,8 @@ static int process_sample_event(event_t *event, struct perf_sample *sample,
 	return 0;
 }
 
-static int process_read_event(event_t *event, struct perf_sample *sample __used,
+static int process_read_event(union perf_event *event,
+			      struct perf_sample *sample __used,
 			      struct perf_session *session __used)
 {
 	struct perf_event_attr *attr;
@@ -232,17 +234,17 @@ static int perf_session__setup_sample_type(struct perf_session *self)
 }
 
 static struct perf_event_ops event_ops = {
-	.sample	= process_sample_event,
-	.mmap	= event__process_mmap,
-	.comm	= event__process_comm,
-	.exit	= event__process_task,
-	.fork	= event__process_task,
-	.lost	= event__process_lost,
-	.read	= process_read_event,
-	.attr	= event__process_attr,
-	.event_type = event__process_event_type,
-	.tracing_data = event__process_tracing_data,
-	.build_id = event__process_build_id,
+	.sample		 = process_sample_event,
+	.mmap		 = perf_event__process_mmap,
+	.comm		 = perf_event__process_comm,
+	.exit		 = perf_event__process_task,
+	.fork		 = perf_event__process_task,
+	.lost		 = perf_event__process_lost,
+	.read		 = process_read_event,
+	.attr		 = perf_event__process_attr,
+	.event_type	 = perf_event__process_event_type,
+	.tracing_data	 = perf_event__process_tracing_data,
+	.build_id	 = perf_event__process_build_id,
 	.ordered_samples = true,
 	.ordering_requires_timestamps = true,
 };
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index ff993c8b175..ae262118292 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1580,9 +1580,9 @@ process_sched_migrate_task_event(void *data, struct perf_session *session,
 						 event, cpu, timestamp, thread);
 }
 
-static void
-process_raw_event(event_t *raw_event __used, struct perf_session *session,
-		  void *data, int cpu, u64 timestamp, struct thread *thread)
+static void process_raw_event(union perf_event *raw_event __used,
+			      struct perf_session *session, void *data, int cpu,
+			      u64 timestamp, struct thread *thread)
 {
 	struct event *event;
 	int type;
@@ -1607,7 +1607,8 @@ process_raw_event(event_t *raw_event __used, struct perf_session *session,
 		process_sched_migrate_task_event(data, session, event, cpu, timestamp, thread);
 }
 
-static int process_sample_event(event_t *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
 				struct perf_session *session)
 {
 	struct thread *thread;
@@ -1635,9 +1636,9 @@ static int process_sample_event(event_t *event, struct perf_sample *sample,
 
 static struct perf_event_ops event_ops = {
 	.sample			= process_sample_event,
-	.comm			= event__process_comm,
-	.lost			= event__process_lost,
-	.fork			= event__process_task,
+	.comm			= perf_event__process_comm,
+	.lost			= perf_event__process_lost,
+	.fork			= perf_event__process_task,
 	.ordered_samples	= true,
 };
 
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 5c4c809008a..5f40df635dc 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -63,7 +63,8 @@ static int cleanup_scripting(void)
 
 static char const		*input_name = "perf.data";
 
-static int process_sample_event(event_t *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+				struct perf_sample *sample,
 				struct perf_session *session)
 {
 	struct thread *thread = perf_session__findnew(session, event->ip.pid);
@@ -100,14 +101,14 @@ static int process_sample_event(event_t *event, struct perf_sample *sample,
 }
 
 static struct perf_event_ops event_ops = {
-	.sample	= process_sample_event,
-	.comm	= event__process_comm,
-	.attr	= event__process_attr,
-	.event_type = event__process_event_type,
-	.tracing_data = event__process_tracing_data,
-	.build_id = event__process_build_id,
-	.ordering_requires_timestamps = true,
+	.sample		 = process_sample_event,
+	.comm		 = perf_event__process_comm,
+	.attr		 = perf_event__process_attr,
+	.event_type	 = perf_event__process_event_type,
+	.tracing_data	 = perf_event__process_tracing_data,
+	.build_id	 = perf_event__process_build_id,
 	.ordered_samples = true,
+	.ordering_requires_timestamps = true,
 };
 
 extern volatile int session_done;
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index df62433a34a..845b9bd54ed 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -454,7 +454,7 @@ out_thread_map_delete:
 static int test__basic_mmap(void)
 {
 	int err = -1;
-	event_t *event;
+	union perf_event *event;
 	struct thread_map *threads;
 	struct cpu_map *cpus;
 	struct perf_evlist *evlist;
@@ -554,11 +554,11 @@ static int test__basic_mmap(void)
 
 		if (event->header.type != PERF_RECORD_SAMPLE) {
 			pr_debug("unexpected %s event\n",
-				 event__get_event_name(event->header.type));
+				 perf_event__name(event->header.type));
 			goto out_munmap;
 		}
 
-		event__parse_sample(event, attr.sample_type, false, &sample);
+		perf_event__parse_sample(event, attr.sample_type, false, &sample);
 		evsel = perf_evlist__id2evsel(evlist, sample.id);
 		if (evsel == NULL) {
 			pr_debug("event with id %" PRIu64
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 01cf0c3771a..0801275c500 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -276,21 +276,24 @@ static int cpus_cstate_state[MAX_CPUS];
 static u64 cpus_pstate_start_times[MAX_CPUS];
 static u64 cpus_pstate_state[MAX_CPUS];
 
-static int process_comm_event(event_t *event, struct perf_sample *sample __used,
+static int process_comm_event(union perf_event *event,
+			      struct perf_sample *sample __used,
 			      struct perf_session *session __used)
 {
 	pid_set_comm(event->comm.tid, event->comm.comm);
 	return 0;
 }
 
-static int process_fork_event(event_t *event, struct perf_sample *sample __used,
+static int process_fork_event(union perf_event *event,
+			      struct perf_sample *sample __used,
 			      struct perf_session *session __used)
 {
 	pid_fork(event->fork.pid, event->fork.ppid, event->fork.time);
 	return 0;
 }
 
-static int process_exit_event(event_t *event, struct perf_sample *sample __used,
+static int process_exit_event(union perf_event *event,
+			      struct perf_sample *sample __used,
 			      struct perf_session *session __used)
 {
 	pid_exit(event->fork.pid, event->fork.time);
@@ -486,7 +489,7 @@ static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te)
 }
 
 
-static int process_sample_event(event_t *event __used,
+static int process_sample_event(union perf_event *event __used,
 				struct perf_sample *sample,
 				struct perf_session *session)
 {
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index d923127b41b..2f4d1f244be 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -401,7 +401,7 @@ static void show_details(struct sym_entry *syme)
 }
 
 /*
- * Symbols will be added here in event__process_sample and will get out
+ * Symbols will be added here in perf_event__process_sample and will get out
  * after decayed.
  */
 static LIST_HEAD(active_symbols);
@@ -996,15 +996,15 @@ static int symbol_filter(struct map *map, struct symbol *sym)
 	return 0;
 }
 
-static void event__process_sample(const event_t *self,
-				  struct perf_sample *sample,
-				  struct perf_session *session)
+static void perf_event__process_sample(const union perf_event *event,
+				       struct perf_sample *sample,
+				       struct perf_session *session)
 {
-	u64 ip = self->ip.ip;
+	u64 ip = event->ip.ip;
 	struct sym_entry *syme;
 	struct addr_location al;
 	struct machine *machine;
-	u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
+	u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 
 	++samples;
 
@@ -1023,7 +1023,7 @@ static void event__process_sample(const event_t *self,
 		break;
 	case PERF_RECORD_MISC_GUEST_KERNEL:
 		++guest_kernel_samples;
-		machine = perf_session__find_machine(session, self->ip.pid);
+		machine = perf_session__find_machine(session, event->ip.pid);
 		break;
 	case PERF_RECORD_MISC_GUEST_USER:
 		++guest_us_samples;
@@ -1038,15 +1038,15 @@ static void event__process_sample(const event_t *self,
 
 	if (!machine && perf_guest) {
 		pr_err("Can't find guest [%d]'s kernel information\n",
-			self->ip.pid);
+			event->ip.pid);
 		return;
 	}
 
-	if (self->header.misc & PERF_RECORD_MISC_EXACT_IP)
+	if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
 		exact_samples++;
 
-	if (event__preprocess_sample(self, session, &al, sample,
-				     symbol_filter) < 0 ||
+	if (perf_event__preprocess_sample(event, session, &al, sample,
+					  symbol_filter) < 0 ||
 	    al.filtered)
 		return;
 
@@ -1108,15 +1108,15 @@ static void event__process_sample(const event_t *self,
 static void perf_session__mmap_read_cpu(struct perf_session *self, int cpu)
 {
 	struct perf_sample sample;
-	event_t *event;
+	union perf_event *event;
 
 	while ((event = perf_evlist__read_on_cpu(evsel_list, cpu)) != NULL) {
 		perf_session__parse_sample(self, event, &sample);
 
 		if (event->header.type == PERF_RECORD_SAMPLE)
-			event__process_sample(event, &sample, self);
+			perf_event__process_sample(event, &sample, self);
 		else
-			event__process(event, &sample, self);
+			perf_event__process(event, &sample, self);
 	}
 }
 
@@ -1199,9 +1199,10 @@ static int __cmd_top(void)
 		return -ENOMEM;
 
 	if (target_tid != -1)
-		event__synthesize_thread(target_tid, event__process, session);
+		perf_event__synthesize_thread(target_tid, perf_event__process,
+					      session);
 	else
-		event__synthesize_threads(event__process, session);
+		perf_event__synthesize_threads(perf_event__process, session);
 
 	start_counters(evsel_list);
 	first = list_entry(evsel_list->entries.next, struct perf_evsel, node);
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index b184a7fa084..31f934af986 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -14,7 +14,7 @@
 #include <linux/kernel.h>
 #include "debug.h"
 
-static int build_id__mark_dso_hit(event_t *event,
+static int build_id__mark_dso_hit(union perf_event *event,
 				  struct perf_sample *sample __used,
 				  struct perf_session *session)
 {
@@ -37,13 +37,14 @@ static int build_id__mark_dso_hit(event_t *event,
 	return 0;
 }
 
-static int event__exit_del_thread(event_t *self, struct perf_sample *sample __used,
-				  struct perf_session *session)
+static int perf_event__exit_del_thread(union perf_event *event,
+				       struct perf_sample *sample __used,
+				       struct perf_session *session)
 {
-	struct thread *thread = perf_session__findnew(session, self->fork.tid);
+	struct thread *thread = perf_session__findnew(session, event->fork.tid);
 
-	dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid,
-		    self->fork.ppid, self->fork.ptid);
+	dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
+		    event->fork.ppid, event->fork.ptid);
 
 	if (thread) {
 		rb_erase(&thread->rb_node, &session->threads);
@@ -56,9 +57,9 @@ static int event__exit_del_thread(event_t *self, struct perf_sample *sample __us
 
 struct perf_event_ops build_id__mark_dso_hit_ops = {
 	.sample	= build_id__mark_dso_hit,
-	.mmap	= event__process_mmap,
-	.fork	= event__process_task,
-	.exit	= event__exit_del_thread,
+	.mmap	= perf_event__process_mmap,
+	.fork	= perf_event__process_task,
+	.exit	= perf_event__exit_del_thread,
 };
 
 char *dso__build_id_filename(struct dso *self, char *bf, size_t size)
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index f8c66d1435e..9f7106a8d9a 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -18,7 +18,8 @@
 #include "util.h"
 #include "callchain.h"
 
-bool ip_callchain__valid(struct ip_callchain *chain, const event_t *event)
+bool ip_callchain__valid(struct ip_callchain *chain,
+			 const union perf_event *event)
 {
 	unsigned int chain_size = event->header.size;
 	chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 67137256a1c..1a79df9f739 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -95,8 +95,8 @@ int callchain_append(struct callchain_root *root,
 int callchain_merge(struct callchain_cursor *cursor,
 		    struct callchain_root *dst, struct callchain_root *src);