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 */ |
34 | static JNINativeMethod methods[] = { |
35 | {"getNanoTimeAdjustment" , "(J)J" , (void *)&JVM_GetNanoTimeAdjustment} |
36 | }; |
37 | |
38 | JNIEXPORT jobject JNICALL |
39 | Java_jdk_internal_misc_VM_latestUserDefinedLoader0(JNIEnv *env, jclass cls) { |
40 | return JVM_LatestUserDefinedLoader(env); |
41 | } |
42 | |
43 | JNIEXPORT void JNICALL |
44 | Java_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 | |
59 | JNIEXPORT jobjectArray JNICALL |
60 | Java_jdk_internal_misc_VM_getRuntimeArguments(JNIEnv *env, jclass cls) { |
61 | return JVM_GetVmArguments(env); |
62 | } |
63 | |
64 | JNIEXPORT void JNICALL |
65 | Java_jdk_internal_misc_VM_initializeFromArchive(JNIEnv *env, jclass ignore, |
66 | jclass c) { |
67 | JVM_InitializeFromArchive(env, c); |
68 | } |
69 | |