[tip:perf/core] perf tools: Remove perf_tool from event_op2

From: tip-bot for Jiri Olsa
Date: Tue Sep 25 2018 - 05:31:46 EST

Commit-ID: 89f1688a57a8f0b685fccd648e601a1f830fa744
Gitweb: https://git.kernel.org/tip/89f1688a57a8f0b685fccd648e601a1f830fa744
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Thu, 13 Sep 2018 14:54:03 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 19 Sep 2018 10:25:10 -0300

perf tools: Remove perf_tool from event_op2

Now that we keep a perf_tool pointer inside perf_session, there's no
need to have a perf_tool argument in the event_op2 callback. Remove it.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180913125450.21342-2-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-annotate.c | 7 ++---
tools/perf/builtin-inject.c | 26 +++++++----------
tools/perf/builtin-report.c | 9 +++---
tools/perf/builtin-script.c | 38 ++++++++++++------------
tools/perf/builtin-stat.c | 23 +++++++--------
tools/perf/util/auxtrace.c | 10 +++----
tools/perf/util/auxtrace.h | 10 +++----
tools/perf/util/header.c | 16 +++++------
tools/perf/util/header.h | 15 ++++------
tools/perf/util/session.c | 67 ++++++++++++++++++-------------------------
tools/perf/util/session.h | 5 ++--
tools/perf/util/stat.c | 5 ++--
tools/perf/util/stat.h | 5 ++--
tools/perf/util/tool.h | 3 +-
14 files changed, 103 insertions(+), 136 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 830481b8db26..93d679eaf1f4 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -283,12 +283,11 @@ out_put:
return ret;
}

-static int process_feature_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session)
+static int process_feature_event(struct perf_session *session,
+ union perf_event *event)
{
if (event->feat.feat_id < HEADER_LAST_FEATURE)
- return perf_event__process_feature(tool, event, session);
+ return perf_event__process_feature(session, event);
return 0;
}

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index a3b346359ba0..d77ed2aea95a 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -86,12 +86,10 @@ static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused,
}
#endif

-static int perf_event__repipe_op2_synth(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session
- __maybe_unused)
+static int perf_event__repipe_op2_synth(struct perf_session *session,
+ union perf_event *event)
{
- return perf_event__repipe_synth(tool, event);
+ return perf_event__repipe_synth(session->tool, event);
}

static int perf_event__repipe_attr(struct perf_tool *tool,
@@ -362,26 +360,24 @@ static int perf_event__repipe_exit(struct perf_tool *tool,
return err;
}

-static int perf_event__repipe_tracing_data(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session)
+static int perf_event__repipe_tracing_data(struct perf_session *session,
+ union perf_event *event)
{
int err;

- perf_event__repipe_synth(tool, event);
- err = perf_event__process_tracing_data(tool, event, session);
+ perf_event__repipe_synth(session->tool, event);
+ err = perf_event__process_tracing_data(session, event);

return err;
}

-static int perf_event__repipe_id_index(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session)
+static int perf_event__repipe_id_index(struct perf_session *session,
+ union perf_event *event)
{
int err;

- perf_event__repipe_synth(tool, event);
- err = perf_event__process_id_index(tool, event, session);
+ perf_event__repipe_synth(session->tool, event);
+ err = perf_event__process_id_index(session, event);

return err;
}
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 76e12bcd1765..7507e4d6dce1 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -201,14 +201,13 @@ static void setup_forced_leader(struct report *report,
perf_evlist__force_leader(evlist);
}

-static int process_feature_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+static int process_feature_event(struct perf_session *session,
+ union perf_event *event)
{
- struct report *rep = container_of(tool, struct report, tool);
+ struct report *rep = container_of(session->tool, struct report, tool);

if (event->feat.feat_id < HEADER_LAST_FEATURE)
- return perf_event__process_feature(tool, event, session);
+ return perf_event__process_feature(session, event);

if (event->feat.feat_id != HEADER_LAST_FEATURE) {
pr_err("failed: wrong feature ID: %" PRIu64 "\n",
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 6176bae177c2..765391b6c88c 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2965,9 +2965,8 @@ static void script__setup_sample_type(struct perf_script *script)
}
}

-static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+static int process_stat_round_event(struct perf_session *session,
+ union perf_event *event)
{
struct stat_round_event *round = &event->stat_round;
struct perf_evsel *counter;
@@ -2981,9 +2980,8 @@ static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
return 0;
}

-static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+static int process_stat_config_event(struct perf_session *session __maybe_unused,
+ union perf_event *event)
{
perf_event__read_stat_config(&stat_config, &event->stat_config);
return 0;
@@ -3009,10 +3007,10 @@ static int set_maps(struct perf_script *script)
}

static
-int process_thread_map_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int process_thread_map_event(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct perf_script *script = container_of(tool, struct perf_script, tool);

if (script->threads) {
@@ -3028,10 +3026,10 @@ int process_thread_map_event(struct perf_tool *tool,
}

static
-int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int process_cpu_map_event(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct perf_script *script = container_of(tool, struct perf_script, tool);

if (script->cpus) {
@@ -3046,21 +3044,21 @@ int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
return set_maps(script);
}

-static int process_feature_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session)
+static int process_feature_event(struct perf_session *session,
+ union perf_event *event)
{
if (event->feat.feat_id < HEADER_LAST_FEATURE)
- return perf_event__process_feature(tool, event, session);
+ return perf_event__process_feature(session, event);
return 0;
}

#ifdef HAVE_AUXTRACE_SUPPORT
-static int perf_script__process_auxtrace_info(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session)
+static int perf_script__process_auxtrace_info(struct perf_session *session,
+ union perf_event *event)
{
- int ret = perf_event__process_auxtrace_info(tool, event, session);
+ struct perf_tool *tool = session->tool;
+
+ int ret = perf_event__process_auxtrace_info(session, event);

if (ret == 0) {
struct perf_script *script = container_of(tool, struct perf_script, tool);
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 0b0e3961d511..b86aba1c8028 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1354,9 +1354,8 @@ static int __cmd_record(int argc, const char **argv)
return argc;
}

-static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+static int process_stat_round_event(struct perf_session *session,
+ union perf_event *event)
{
struct stat_round_event *stat_round = &event->stat_round;
struct perf_evsel *counter;
@@ -1381,10 +1380,10 @@ static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
}

static
-int process_stat_config_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int process_stat_config_event(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct perf_stat *st = container_of(tool, struct perf_stat, tool);

perf_event__read_stat_config(&stat_config, &event->stat_config);
@@ -1424,10 +1423,10 @@ static int set_maps(struct perf_stat *st)
}

static
-int process_thread_map_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int process_thread_map_event(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct perf_stat *st = container_of(tool, struct perf_stat, tool);

if (st->threads) {
@@ -1443,10 +1442,10 @@ int process_thread_map_event(struct perf_tool *tool,
}

static
-int process_cpu_map_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int process_cpu_map_event(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct perf_stat *st = container_of(tool, struct perf_stat, tool);
struct cpu_map *cpus;

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index db1511359c5e..86f0bc445f93 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -906,9 +906,8 @@ out_free:
return err;
}

-int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+int perf_event__process_auxtrace_info(struct perf_session *session,
+ union perf_event *event)
{
enum auxtrace_type type = event->auxtrace_info.type;

@@ -1185,9 +1184,8 @@ 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)
+int perf_event__process_auxtrace_error(struct perf_session *session,
+ union perf_event *event)
{
if (auxtrace__dont_decode(session))
return 0;
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 71fc3bd74299..97776470a52e 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -517,15 +517,13 @@ 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);
+int perf_event__process_auxtrace_info(struct perf_session *session,
+ union perf_event *event);
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);
+int perf_event__process_auxtrace_error(struct perf_session *session,
+ union perf_event *event);
int itrace_parse_synth_opts(const struct option *opt, const char *str,
int unset);
void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 91e6d9cfd906..c78051ad1fcc 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -3448,10 +3448,10 @@ int perf_event__synthesize_features(struct perf_tool *tool,
return ret;
}

-int perf_event__process_feature(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session __maybe_unused)
+int perf_event__process_feature(struct perf_session *session,
+ union perf_event *event)
{
+ struct perf_tool *tool = session->tool;
struct feat_fd ff = { .fd = 0 };
struct feature_event *fe = (struct feature_event *)event;
int type = fe->header.type;
@@ -3856,9 +3856,8 @@ int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd,
return aligned_size;
}

-int perf_event__process_tracing_data(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+int perf_event__process_tracing_data(struct perf_session *session,
+ union perf_event *event)
{
ssize_t size_read, padding, size = event->tracing_data.size;
int fd = perf_data__fd(session->data);
@@ -3924,9 +3923,8 @@ int perf_event__synthesize_build_id(struct perf_tool *tool,
return err;
}

-int perf_event__process_build_id(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+int perf_event__process_build_id(struct perf_session *session,
+ union perf_event *event)
{
__event_process_build_id(&event->build_id,
event->build_id.filename,
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index ff2a1263fb9b..e17903caa71d 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -116,9 +116,8 @@ int perf_event__synthesize_extra_attr(struct perf_tool *tool,
perf_event__handler_t process,
bool is_pipe);

-int perf_event__process_feature(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session);
+int perf_event__process_feature(struct perf_session *session,
+ union perf_event *event);

int perf_event__synthesize_attr(struct perf_tool *tool,
struct perf_event_attr *attr, u32 ids, u64 *id,
@@ -148,17 +147,15 @@ size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
int perf_event__synthesize_tracing_data(struct perf_tool *tool,
int fd, struct perf_evlist *evlist,
perf_event__handler_t process);
-int perf_event__process_tracing_data(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session);
+int perf_event__process_tracing_data(struct perf_session *session,
+ union perf_event *event);

int perf_event__synthesize_build_id(struct perf_tool *tool,
struct dso *pos, u16 misc,
perf_event__handler_t process,
struct machine *machine);
-int perf_event__process_build_id(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session);
+int perf_event__process_build_id(struct perf_session *session,
+ union perf_event *event);
bool is_perf_magic(u64 magic);

#define NAME_ALIGN 64
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 8b9369303561..e781cdba845c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -199,12 +199,10 @@ void perf_session__delete(struct perf_session *session)
free(session);
}

-static int process_event_synth_tracing_data_stub(struct perf_tool *tool
+static int process_event_synth_tracing_data_stub(struct perf_session *session
__maybe_unused,
union perf_event *event
- __maybe_unused,
- struct perf_session *session
- __maybe_unused)
+ __maybe_unused)
{
dump_printf(": unhandled!\n");
return 0;
@@ -288,9 +286,8 @@ static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
return event->auxtrace.size;
}

-static int process_event_op2_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *session __maybe_unused)
+static int process_event_op2_stub(struct perf_session *session __maybe_unused,
+ union perf_event *event __maybe_unused)
{
dump_printf(": unhandled!\n");
return 0;
@@ -298,9 +295,8 @@ static int process_event_op2_stub(struct perf_tool *tool __maybe_unused,


static
-int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *session __maybe_unused)
+int process_event_thread_map_stub(struct perf_session *session __maybe_unused,
+ union perf_event *event __maybe_unused)
{
if (dump_trace)
perf_event__fprintf_thread_map(event, stdout);
@@ -310,9 +306,8 @@ int process_event_thread_map_stub(struct perf_tool *tool __maybe_unused,
}

static
-int process_event_cpu_map_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *session __maybe_unused)
+int process_event_cpu_map_stub(struct perf_session *session __maybe_unused,
+ union perf_event *event __maybe_unused)
{
if (dump_trace)
perf_event__fprintf_cpu_map(event, stdout);
@@ -322,9 +317,8 @@ int process_event_cpu_map_stub(struct perf_tool *tool __maybe_unused,
}

static
-int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *session __maybe_unused)
+int process_event_stat_config_stub(struct perf_session *session __maybe_unused,
+ union perf_event *event __maybe_unused)
{
if (dump_trace)
perf_event__fprintf_stat_config(event, stdout);
@@ -333,10 +327,8 @@ int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
return 0;
}

-static int process_stat_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *perf_session
- __maybe_unused)
+static int process_stat_stub(struct perf_session *perf_session __maybe_unused,
+ union perf_event *event)
{
if (dump_trace)
perf_event__fprintf_stat(event, stdout);
@@ -345,10 +337,8 @@ static int process_stat_stub(struct perf_tool *tool __maybe_unused,
return 0;
}

-static int process_stat_round_stub(struct perf_tool *tool __maybe_unused,
- union perf_event *event __maybe_unused,
- struct perf_session *perf_session
- __maybe_unused)
+static int process_stat_round_stub(struct perf_session *perf_session __maybe_unused,
+ union perf_event *event)
{
if (dump_trace)
perf_event__fprintf_stat_round(event, stdout);
@@ -1374,37 +1364,37 @@ static s64 perf_session__process_user_event(struct perf_session *session,
case PERF_RECORD_HEADER_TRACING_DATA:
/* setup for reading amidst mmap */
lseek(fd, file_offset, SEEK_SET);
- return tool->tracing_data(tool, event, session);
+ return tool->tracing_data(session, event);
case PERF_RECORD_HEADER_BUILD_ID:
- return tool->build_id(tool, event, session);
+ return tool->build_id(session, event);
case PERF_RECORD_FINISHED_ROUND:
return tool->finished_round(tool, event, oe);
case PERF_RECORD_ID_INDEX:
- return tool->id_index(tool, event, session);
+ return tool->id_index(session, event);
case PERF_RECORD_AUXTRACE_INFO:
- return tool->auxtrace_info(tool, event, session);
+ return tool->auxtrace_info(session, event);
case PERF_RECORD_AUXTRACE:
/* setup for reading amidst mmap */
lseek(fd, file_offset + event->header.size, SEEK_SET);
return tool->auxtrace(tool, event, session);
case PERF_RECORD_AUXTRACE_ERROR:
perf_session__auxtrace_error_inc(session, event);
- return tool->auxtrace_error(tool, event, session);
+ return tool->auxtrace_error(session, event);
case PERF_RECORD_THREAD_MAP:
- return tool->thread_map(tool, event, session);
+ return tool->thread_map(session, event);
case PERF_RECORD_CPU_MAP:
- return tool->cpu_map(tool, event, session);
+ return tool->cpu_map(session, event);
case PERF_RECORD_STAT_CONFIG:
- return tool->stat_config(tool, event, session);
+ return tool->stat_config(session, event);
case PERF_RECORD_STAT:
- return tool->stat(tool, event, session);
+ return tool->stat(session, event);
case PERF_RECORD_STAT_ROUND:
- return tool->stat_round(tool, event, session);
+ return tool->stat_round(session, event);
case PERF_RECORD_TIME_CONV:
session->time_conv = event->time_conv;
- return tool->time_conv(tool, event, session);
+ return tool->time_conv(session, event);
case PERF_RECORD_HEADER_FEATURE:
- return tool->feature(tool, event, session);
+ return tool->feature(session, event);
default:
return -EINVAL;
}
@@ -2133,9 +2123,8 @@ out:
return err;
}

-int perf_event__process_id_index(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+int perf_event__process_id_index(struct perf_session *session,
+ union perf_event *event)
{
struct perf_evlist *evlist = session->evlist;
struct id_index_event *ie = &event->id_index;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index da40b4b380ca..d96eccd7d27f 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -120,9 +120,8 @@ int perf_session__deliver_synth_event(struct perf_session *session,
union perf_event *event,
struct perf_sample *sample);

-int perf_event__process_id_index(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session);
+int perf_event__process_id_index(struct perf_session *session,
+ union perf_event *event);

int perf_event__synthesize_id_index(struct perf_tool *tool,
perf_event__handler_t process,
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 5d3172bcc4ae..4d40515307b8 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -374,9 +374,8 @@ int perf_stat_process_counter(struct perf_stat_config *config,
return 0;
}

-int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused,
- union perf_event *event,
- struct perf_session *session)
+int perf_event__process_stat_event(struct perf_session *session,
+ union perf_event *event)
{
struct perf_counts_values count;
struct stat_event *st = &event->stat;
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 3a13a6dc5a62..2f9c9159a364 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -199,9 +199,8 @@ int perf_stat_process_counter(struct perf_stat_config *config,
struct perf_tool;
union perf_event;
struct perf_session;
-int perf_event__process_stat_event(struct perf_tool *tool,
- union perf_event *event,
- struct perf_session *session);
+int perf_event__process_stat_event(struct perf_session *session,
+ union perf_event *event);

size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index 183c91453522..9c7f78d76275 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -26,8 +26,7 @@ typedef int (*event_attr_op)(struct perf_tool *tool,
union perf_event *event,
struct perf_evlist **pevlist);

-typedef int (*event_op2)(struct perf_tool *tool, union perf_event *event,
- struct perf_session *session);
+typedef int (*event_op2)(struct perf_session *session, union perf_event *event);

typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
struct ordered_events *oe);