1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdio.h>
18
19 #include "android-base/macros.h"
20
21 #include "jni.h"
22 #include "jvmti.h"
23 #include "scoped_local_ref.h"
24
25 // Test infrastructure
26 #include "jni_helper.h"
27 #include "jvmti_helper.h"
28 #include "test_env.h"
29
30 namespace art {
31 namespace Test910Methods {
32
Java_art_Test910_getMethodName(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)33 extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test910_getMethodName(
34 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
35 jmethodID id = env->FromReflectedMethod(method);
36
37 char* name;
38 char* sig;
39 char* gen;
40 jvmtiError result = jvmti_env->GetMethodName(id, &name, &sig, &gen);
41 if (JvmtiErrorToException(env, jvmti_env, result)) {
42 return nullptr;
43 }
44
45 auto callback = [&](jint i) {
46 if (i == 0) {
47 return name == nullptr ? nullptr : env->NewStringUTF(name);
48 } else if (i == 1) {
49 return sig == nullptr ? nullptr : env->NewStringUTF(sig);
50 } else {
51 return gen == nullptr ? nullptr : env->NewStringUTF(gen);
52 }
53 };
54 jobjectArray ret = CreateObjectArray(env, 3, "java/lang/String", callback);
55
56 // Need to deallocate the strings.
57 if (name != nullptr) {
58 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(name));
59 }
60 if (sig != nullptr) {
61 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(sig));
62 }
63 if (gen != nullptr) {
64 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(gen));
65 }
66
67 // Also run GetMethodName with all parameter pointers null to check for segfaults.
68 jvmtiError result2 = jvmti_env->GetMethodName(id, nullptr, nullptr, nullptr);
69 if (JvmtiErrorToException(env, jvmti_env, result2)) {
70 return nullptr;
71 }
72
73 return ret;
74 }
75
Java_art_Test910_getMethodDeclaringClass(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)76 extern "C" JNIEXPORT jclass JNICALL Java_art_Test910_getMethodDeclaringClass(
77 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
78 jmethodID id = env->FromReflectedMethod(method);
79
80 jclass declaring_class;
81 jvmtiError result = jvmti_env->GetMethodDeclaringClass(id, &declaring_class);
82 if (JvmtiErrorToException(env, jvmti_env, result)) {
83 return nullptr;
84 }
85
86 return declaring_class;
87 }
88
Java_art_Test910_getMethodModifiers(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)89 extern "C" JNIEXPORT jint JNICALL Java_art_Test910_getMethodModifiers(
90 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
91 jmethodID id = env->FromReflectedMethod(method);
92
93 jint modifiers;
94 jvmtiError result = jvmti_env->GetMethodModifiers(id, &modifiers);
95 if (JvmtiErrorToException(env, jvmti_env, result)) {
96 return 0;
97 }
98
99 return modifiers;
100 }
101
Java_art_Test910_getMaxLocals(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)102 extern "C" JNIEXPORT jint JNICALL Java_art_Test910_getMaxLocals(
103 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
104 jmethodID id = env->FromReflectedMethod(method);
105
106 jint max_locals;
107 jvmtiError result = jvmti_env->GetMaxLocals(id, &max_locals);
108 if (JvmtiErrorToException(env, jvmti_env, result)) {
109 return -1;
110 }
111
112 return max_locals;
113 }
114
Java_art_Test910_getArgumentsSize(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)115 extern "C" JNIEXPORT jint JNICALL Java_art_Test910_getArgumentsSize(
116 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
117 jmethodID id = env->FromReflectedMethod(method);
118
119 jint arguments;
120 jvmtiError result = jvmti_env->GetArgumentsSize(id, &arguments);
121 if (JvmtiErrorToException(env, jvmti_env, result)) {
122 return -1;
123 }
124
125 return arguments;
126 }
127
Java_art_Test910_getMethodLocationStart(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)128 extern "C" JNIEXPORT jlong JNICALL Java_art_Test910_getMethodLocationStart(
129 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
130 jmethodID id = env->FromReflectedMethod(method);
131
132 jlong start;
133 jlong end;
134 jvmtiError result = jvmti_env->GetMethodLocation(id, &start, &end);
135 if (JvmtiErrorToException(env, jvmti_env, result)) {
136 return -1;
137 }
138
139 return start;
140 }
141
Java_art_Test910_getMethodLocationEnd(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)142 extern "C" JNIEXPORT jlong JNICALL Java_art_Test910_getMethodLocationEnd(
143 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
144 jmethodID id = env->FromReflectedMethod(method);
145
146 jlong start;
147 jlong end;
148 jvmtiError result = jvmti_env->GetMethodLocation(id, &start, &end);
149 if (JvmtiErrorToException(env, jvmti_env, result)) {
150 return -1;
151 }
152
153 return end;
154 }
155
Java_art_Test910_isMethodNative(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)156 extern "C" JNIEXPORT jboolean JNICALL Java_art_Test910_isMethodNative(
157 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
158 jmethodID id = env->FromReflectedMethod(method);
159
160 jboolean is_native;
161 jvmtiError result = jvmti_env->IsMethodNative(id, &is_native);
162 if (JvmtiErrorToException(env, jvmti_env, result)) {
163 return JNI_FALSE;
164 }
165
166 return is_native;
167 }
168
Java_art_Test910_isMethodObsolete(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)169 extern "C" JNIEXPORT jboolean JNICALL Java_art_Test910_isMethodObsolete(
170 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
171 jmethodID id = env->FromReflectedMethod(method);
172
173 jboolean is_obsolete;
174 jvmtiError result = jvmti_env->IsMethodObsolete(id, &is_obsolete);
175 if (JvmtiErrorToException(env, jvmti_env, result)) {
176 return JNI_FALSE;
177 }
178
179 return is_obsolete;
180 }
181
Java_art_Test910_isMethodSynthetic(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jobject method)182 extern "C" JNIEXPORT jboolean JNICALL Java_art_Test910_isMethodSynthetic(
183 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
184 jmethodID id = env->FromReflectedMethod(method);
185
186 jboolean is_synthetic;
187 jvmtiError result = jvmti_env->IsMethodSynthetic(id, &is_synthetic);
188 if (JvmtiErrorToException(env, jvmti_env, result)) {
189 return JNI_FALSE;
190 }
191
192 return is_synthetic;
193 }
194
195 } // namespace Test910Methods
196 } // namespace art
197