1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Copyright © 2021 Google, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "u_perfetto.h"
#include <perfetto.h>
#include "c11/threads.h"
#include "util/macros.h"
/* perfetto requires string literals */
#define UTIL_PERFETTO_CATEGORY_DEFAULT_STR "mesa.default"
#define UTIL_PERFETTO_CATEGORY_SLOW_STR "mesa.slow"
PERFETTO_DEFINE_CATEGORIES(
perfetto::Category(UTIL_PERFETTO_CATEGORY_DEFAULT_STR)
.SetDescription("Mesa default events"),
perfetto::Category(UTIL_PERFETTO_CATEGORY_SLOW_STR)
.SetDescription("Mesa slow events")
.SetTags("slow"));
PERFETTO_TRACK_EVENT_STATIC_STORAGE();
int util_perfetto_category_states[UTIL_PERFETTO_CATEGORY_COUNT];
static void
util_perfetto_update_category_states(void)
{
#define UPDATE_CATEGORY(cat) \
p_atomic_set( \
&util_perfetto_category_states[UTIL_PERFETTO_CATEGORY_##cat], \
TRACE_EVENT_CATEGORY_ENABLED(UTIL_PERFETTO_CATEGORY_##cat##_STR))
UPDATE_CATEGORY(DEFAULT);
UPDATE_CATEGORY(SLOW);
#undef UPDATE_CATEGORY
}
void
util_perfetto_trace_begin(enum util_perfetto_category category,
const char *name)
{
#define TRACE_BEGIN(cat, name) \
TRACE_EVENT_BEGIN( \
UTIL_PERFETTO_CATEGORY_##cat##_STR, nullptr, \
[&](perfetto::EventContext ctx) { ctx.event()->set_name(name); })
switch (category) {
case UTIL_PERFETTO_CATEGORY_DEFAULT:
TRACE_BEGIN(DEFAULT, name);
break;
case UTIL_PERFETTO_CATEGORY_SLOW:
TRACE_BEGIN(SLOW, name);
break;
default:
unreachable("bad perfetto category");
}
#undef TRACE_BEGIN
}
void
util_perfetto_trace_end(enum util_perfetto_category category)
{
#define TRACE_END(cat) TRACE_EVENT_END(UTIL_PERFETTO_CATEGORY_##cat##_STR)
switch (category) {
case UTIL_PERFETTO_CATEGORY_DEFAULT:
TRACE_END(DEFAULT);
break;
case UTIL_PERFETTO_CATEGORY_SLOW:
TRACE_END(SLOW);
break;
default:
unreachable("bad perfetto category");
}
#undef TRACE_END
util_perfetto_update_category_states();
}
class UtilPerfettoObserver : public perfetto::TrackEventSessionObserver {
public:
UtilPerfettoObserver() { perfetto::TrackEvent::AddSessionObserver(this); }
void OnStart(const perfetto::DataSourceBase::StartArgs &) override
{
util_perfetto_update_category_states();
}
/* XXX There is no PostStop callback. We have to call
* util_perfetto_update_category_states occasionally to poll.
*/
};
static void
util_perfetto_fini(void)
{
perfetto::Tracing::Shutdown();
}
static void
util_perfetto_init_once(void)
{
// Connects to the system tracing service
perfetto::TracingInitArgs args;
args.backends = perfetto::kSystemBackend;
perfetto::Tracing::Initialize(args);
static UtilPerfettoObserver observer;
perfetto::TrackEvent::Register();
atexit(&util_perfetto_fini);
}
static once_flag perfetto_once_flag = ONCE_FLAG_INIT;
void
util_perfetto_init(void)
{
call_once(&perfetto_once_flag, util_perfetto_init_once);
}
|
