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
139
140
141
142
143
144
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "Trace"
// #define LOG_NDEBUG 0
#include <inttypes.h>
#include <JNIHelp.h>
#include <ScopedUtfChars.h>
#include <ScopedStringChars.h>
#include <utils/String8.h>
#include <cutils/trace.h>
#include <cutils/log.h>
namespace android {
static void sanitizeString(String8& utf8Chars) {
size_t size = utf8Chars.size();
char* str = utf8Chars.lockBuffer(size);
for (size_t i = 0; i < size; i++) {
char c = str[i];
if (c == '\0' || c == '\n' || c == '|') {
str[i] = ' ';
}
}
utf8Chars.unlockBuffer();
}
static jlong android_os_Trace_nativeGetEnabledTags(JNIEnv* env, jclass clazz) {
return atrace_get_enabled_tags();
}
static void android_os_Trace_nativeTraceCounter(JNIEnv* env, jclass clazz,
jlong tag, jstring nameStr, jint value) {
ScopedUtfChars name(env, nameStr);
ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, name.c_str(), value);
atrace_int(tag, name.c_str(), value);
}
static void android_os_Trace_nativeTraceBegin(JNIEnv* env, jclass clazz,
jlong tag, jstring nameStr) {
ScopedStringChars jchars(env, nameStr);
String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size());
sanitizeString(utf8Chars);
ALOGV("%s: %" PRId64 " %s", __FUNCTION__, tag, utf8Chars.string());
atrace_begin(tag, utf8Chars.string());
}
static void android_os_Trace_nativeTraceEnd(JNIEnv* env, jclass clazz,
jlong tag) {
ALOGV("%s: %" PRId64, __FUNCTION__, tag);
atrace_end(tag);
}
static void android_os_Trace_nativeAsyncTraceBegin(JNIEnv* env, jclass clazz,
jlong tag, jstring nameStr, jint cookie) {
ScopedStringChars jchars(env, nameStr);
String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size());
sanitizeString(utf8Chars);
ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, utf8Chars.string(), cookie);
atrace_async_begin(tag, utf8Chars.string(), cookie);
}
static void android_os_Trace_nativeAsyncTraceEnd(JNIEnv* env, jclass clazz,
jlong tag, jstring nameStr, jint cookie) {
ScopedStringChars jchars(env, nameStr);
String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size());
sanitizeString(utf8Chars);
ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, utf8Chars.string(), cookie);
atrace_async_end(tag, utf8Chars.string(), cookie);
}
static void android_os_Trace_nativeSetAppTracingAllowed(JNIEnv* env,
jclass clazz, jboolean allowed) {
ALOGV("%s: %d", __FUNCTION__, allowed);
atrace_set_debuggable(allowed);
}
static void android_os_Trace_nativeSetTracingEnabled(JNIEnv* env,
jclass clazz, jboolean enabled) {
ALOGV("%s: %d", __FUNCTION__, enabled);
atrace_set_tracing_enabled(enabled);
}
static JNINativeMethod gTraceMethods[] = {
/* name, signature, funcPtr */
{ "nativeGetEnabledTags",
"()J",
(void*)android_os_Trace_nativeGetEnabledTags },
{ "nativeTraceCounter",
"!(JLjava/lang/String;I)V",
(void*)android_os_Trace_nativeTraceCounter },
{ "nativeTraceBegin",
"!(JLjava/lang/String;)V",
(void*)android_os_Trace_nativeTraceBegin },
{ "nativeTraceEnd",
"!(J)V",
(void*)android_os_Trace_nativeTraceEnd },
{ "nativeAsyncTraceBegin",
"!(JLjava/lang/String;I)V",
(void*)android_os_Trace_nativeAsyncTraceBegin },
{ "nativeAsyncTraceEnd",
"!(JLjava/lang/String;I)V",
(void*)android_os_Trace_nativeAsyncTraceEnd },
{ "nativeSetAppTracingAllowed",
"(Z)V",
(void*)android_os_Trace_nativeSetAppTracingAllowed },
{ "nativeSetTracingEnabled",
"(Z)V",
(void*)android_os_Trace_nativeSetTracingEnabled },
};
int register_android_os_Trace(JNIEnv* env) {
int res = jniRegisterNativeMethods(env, "android/os/Trace",
gTraceMethods, NELEM(gTraceMethods));
LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods.");
return 0;
}
} // namespace android
|
