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Andreas Gampe6f8e4f02017-01-16 18:18:14 -08001/* 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
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9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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31
Andreas Gampe06c42a52017-07-26 14:17:14 -070032#ifndef ART_OPENJDKJVMTI_TI_JNI_H_
33#define ART_OPENJDKJVMTI_TI_JNI_H_
Andreas Gampe6f8e4f02017-01-16 18:18:14 -080034
35#include "jni.h"
36#include "jvmti.h"
37
38namespace 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
49class 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
Andreas Gampe06c42a52017-07-26 14:17:14 -070058#endif // ART_OPENJDKJVMTI_TI_JNI_H_