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 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 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 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 } 101 102 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 } 114 115 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 } 127 128 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 } 141 142 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 } 155 156 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 } 168 169 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 } 181 182 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
