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 <pthread.h> 18 19 #include <cstdio> 20 #include <iostream> 21 #include <vector> 22 23 #include "android-base/logging.h" 24 #include "jni.h" 25 #include "jvmti.h" 26 27 #include "scoped_local_ref.h" 28 #include "scoped_primitive_array.h" 29 30 // Test infrastructure 31 #include "jvmti_helper.h" 32 #include "test_env.h" 33 34 namespace art { 35 namespace Test1901Bytecodes { 36 37 extern "C" JNIEXPORT jbyteArray JNICALL Java_art_Test1901_getBytecodes(JNIEnv* env, 38 jclass, 39 jobject jmethod) { 40 jmethodID method = env->FromReflectedMethod(jmethod); 41 if (env->ExceptionCheck()) { 42 return nullptr; 43 } 44 unsigned char* bytecodes = nullptr; 45 jint bytecodes_size = 0; 46 if (JvmtiErrorToException(env, 47 jvmti_env, 48 jvmti_env->GetBytecodes(method, &bytecodes_size, &bytecodes))) { 49 return nullptr; 50 } 51 jbyteArray out = env->NewByteArray(bytecodes_size); 52 if (env->ExceptionCheck()) { 53 return nullptr; 54 } else if (bytecodes_size == 0) { 55 return out; 56 } 57 jbyte* bytes = env->GetByteArrayElements(out, /* is_copy */ nullptr); 58 memcpy(bytes, bytecodes, bytecodes_size); 59 env->ReleaseByteArrayElements(out, bytes, 0); 60 return out; 61 } 62 63 } // namespace Test1901Bytecodes 64 } // namespace art 65
