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
|
/*
* Copyright (C) 2015 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.
*/
#include "jni.h"
#include "base/logging.h"
#include "dex_file-inl.h"
#include "mirror/class-inl.h"
#include "nth_caller_visitor.h"
#include "runtime.h"
#include "scoped_thread_state_change.h"
#include "stack.h"
#include "thread-inl.h"
namespace art {
static bool asserts_enabled = true;
// public static native void disableStackFrameAsserts();
// Note: to globally disable asserts in unsupported configurations.
extern "C" JNIEXPORT void JNICALL Java_Main_disableStackFrameAsserts(JNIEnv* env ATTRIBUTE_UNUSED,
jclass cls ATTRIBUTE_UNUSED) {
asserts_enabled = false;
}
static jboolean IsInterpreted(JNIEnv* env, jclass, size_t level) {
ScopedObjectAccess soa(env);
NthCallerVisitor caller(soa.Self(), level, false);
caller.WalkStack();
CHECK(caller.caller != nullptr);
return caller.GetCurrentShadowFrame() != nullptr ? JNI_TRUE : JNI_FALSE;
}
// public static native boolean isInterpreted();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isInterpreted(JNIEnv* env, jclass klass) {
return IsInterpreted(env, klass, 1);
}
// public static native void assertIsInterpreted();
extern "C" JNIEXPORT void JNICALL Java_Main_assertIsInterpreted(JNIEnv* env, jclass klass) {
if (asserts_enabled) {
CHECK(Java_Main_isInterpreted(env, klass));
}
}
static jboolean IsManaged(JNIEnv* env, jclass cls, size_t level) {
ScopedObjectAccess soa(env);
mirror::Class* klass = soa.Decode<mirror::Class*>(cls);
const DexFile& dex_file = klass->GetDexFile();
const OatFile::OatDexFile* oat_dex_file = dex_file.GetOatDexFile();
if (oat_dex_file == nullptr) {
// No oat file, this must be a test configuration that doesn't compile at all. Ignore that the
// result will be that we're running the interpreter.
return JNI_FALSE;
}
NthCallerVisitor caller(soa.Self(), level, false);
caller.WalkStack();
CHECK(caller.caller != nullptr);
return caller.GetCurrentShadowFrame() != nullptr ? JNI_FALSE : JNI_TRUE;
}
// public static native boolean isManaged();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isManaged(JNIEnv* env, jclass cls) {
return IsManaged(env, cls, 1);
}
// public static native void assertIsManaged();
extern "C" JNIEXPORT void JNICALL Java_Main_assertIsManaged(JNIEnv* env, jclass cls) {
if (asserts_enabled) {
CHECK(Java_Main_isManaged(env, cls));
}
}
// public static native boolean isCallerInterpreted();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isCallerInterpreted(JNIEnv* env, jclass klass) {
return IsInterpreted(env, klass, 2);
}
// public static native void assertCallerIsInterpreted();
extern "C" JNIEXPORT void JNICALL Java_Main_assertCallerIsInterpreted(JNIEnv* env, jclass klass) {
if (asserts_enabled) {
CHECK(Java_Main_isCallerInterpreted(env, klass));
}
}
// public static native boolean isCallerManaged();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isCallerManaged(JNIEnv* env, jclass cls) {
return IsManaged(env, cls, 2);
}
// public static native void assertCallerIsManaged();
extern "C" JNIEXPORT void JNICALL Java_Main_assertCallerIsManaged(JNIEnv* env, jclass cls) {
if (asserts_enabled) {
CHECK(Java_Main_isCallerManaged(env, cls));
}
}
} // namespace art
|