1 /* Copyright (C) 2017 The Android Open Source Project 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This file implements interfaces from the file jvmti.h. This implementation 5 * is licensed under the same terms as the file jvmti.h. The 6 * copyright and license information for the file jvmti.h follows. 7 * 8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 10 * 11 * This code is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License version 2 only, as 13 * published by the Free Software Foundation. Oracle designates this 14 * particular file as subject to the "Classpath" exception as provided 15 * by Oracle in the LICENSE file that accompanied this code. 16 * 17 * This code is distributed in the hope that it will be useful, but WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 20 * version 2 for more details (a copy is included in the LICENSE file that 21 * accompanied this code). 22 * 23 * You should have received a copy of the GNU General Public License version 24 * 2 along with this work; if not, write to the Free Software Foundation, 25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 26 * 27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 28 * or visit www.oracle.com if you need additional information or have any 29 * questions. 30 */ 31 32 #ifndef ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_ 33 #define ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_ 34 35 #include "jni.h" 36 #include "jvmti.h" 37 38 namespace openjdkjvmti { 39 40 // Note: Currently, JNI function table changes are sensitive to the order of operations wrt/ 41 // CheckJNI. If an agent sets the function table, and a program than late-enables CheckJNI, 42 // CheckJNI will not be working (as the agent will forward to the non-CheckJNI table). 43 // 44 // This behavior results from our usage of the function table to avoid a check of the 45 // CheckJNI flag. A future implementation may install on loading of this plugin an 46 // intermediate function table that explicitly checks the flag, so that switching CheckJNI 47 // is transparently handled. 48 49 class JNIUtil { 50 public: 51 static jvmtiError SetJNIFunctionTable(jvmtiEnv* env, const jniNativeInterface* function_table); 52 53 static jvmtiError GetJNIFunctionTable(jvmtiEnv* env, jniNativeInterface** function_table); 54 }; 55 56 } // namespace openjdkjvmti 57 58 #endif // ART_RUNTIME_OPENJDKJVMTI_TI_JNI_H_ 59
