1/*
2 * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include "jni.h"
27#include "jni_util.h"
28#include "jvm.h"
29#include "jdk_util.h"
30
31#include "jdk_internal_misc_VM.h"
32
33/* Only register the performance-critical methods */
34static JNINativeMethod methods[] = {
35 {"getNanoTimeAdjustment", "(J)J", (void *)&JVM_GetNanoTimeAdjustment}
36};
37
38JNIEXPORT jobject JNICALL
39Java_jdk_internal_misc_VM_latestUserDefinedLoader0(JNIEnv *env, jclass cls) {
40 return JVM_LatestUserDefinedLoader(env);
41}
42
43JNIEXPORT void JNICALL
44Java_jdk_internal_misc_VM_initialize(JNIEnv *env, jclass cls) {
45 if (!JDK_InitJvmHandle()) {
46 JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup");
47 return;
48 }
49
50 // Registers implementations of native methods described in methods[]
51 // above.
52 // In particular, registers JVM_GetNanoTimeAdjustment as the implementation
53 // of the native VM.getNanoTimeAdjustment - avoiding the cost of
54 // introducing a Java_jdk_internal_misc_VM_getNanoTimeAdjustment wrapper
55 (*env)->RegisterNatives(env, cls,
56 methods, sizeof(methods)/sizeof(methods[0]));
57}
58
59JNIEXPORT jobjectArray JNICALL
60Java_jdk_internal_misc_VM_getRuntimeArguments(JNIEnv *env, jclass cls) {
61 return JVM_GetVmArguments(env);
62}
63
64JNIEXPORT void JNICALL
65Java_jdk_internal_misc_VM_initializeFromArchive(JNIEnv *env, jclass ignore,
66 jclass c) {
67 JVM_InitializeFromArchive(env, c);
68}
69