aosp12/art/openjdkjvmti/ti_jni.h

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/* Copyright (C) 2017 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This file implements interfaces from the file jvmti.h. This implementation
* is licensed under the same terms as the file jvmti.h. The
* copyright and license information for the file jvmti.h follows.
*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef ART_OPENJDKJVMTI_TI_JNI_H_
#define ART_OPENJDKJVMTI_TI_JNI_H_
#include "jni.h"
#include "jvmti.h"
namespace openjdkjvmti {
// Note: Currently, JNI function table changes are sensitive to the order of operations wrt/
// CheckJNI. If an agent sets the function table, and a program than late-enables CheckJNI,
// CheckJNI will not be working (as the agent will forward to the non-CheckJNI table).
//
// This behavior results from our usage of the function table to avoid a check of the
// CheckJNI flag. A future implementation may install on loading of this plugin an
// intermediate function table that explicitly checks the flag, so that switching CheckJNI
// is transparently handled.
class JNIUtil {
public:
static jvmtiError SetJNIFunctionTable(jvmtiEnv* env, const jniNativeInterface* function_table);
static jvmtiError GetJNIFunctionTable(jvmtiEnv* env, jniNativeInterface** function_table);
};
} // namespace openjdkjvmti
#endif // ART_OPENJDKJVMTI_TI_JNI_H_