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 30 #include "jdk_internal_misc_VM.h" 31 32 /* Only register the performance-critical methods */ 33 static JNINativeMethod methods[] = { 34 {"getNanoTimeAdjustment", "(J)J", (void *)&JVM_GetNanoTimeAdjustment} 35 }; 36 37 JNIEXPORT jobject JNICALL 38 Java_jdk_internal_misc_VM_latestUserDefinedLoader0(JNIEnv *env, jclass cls) { 39 return JVM_LatestUserDefinedLoader(env); 40 } 41 42 JNIEXPORT void JNICALL 43 Java_jdk_internal_misc_VM_initialize(JNIEnv *env, jclass cls) { 44 // Registers implementations of native methods described in methods[] 45 // above. 46 // In particular, registers JVM_GetNanoTimeAdjustment as the implementation 47 // of the native VM.getNanoTimeAdjustment - avoiding the cost of 48 // introducing a Java_jdk_internal_misc_VM_getNanoTimeAdjustment wrapper 49 (*env)->RegisterNatives(env, cls, 50 methods, sizeof(methods)/sizeof(methods[0])); 51 } 52 53 JNIEXPORT jobjectArray JNICALL 54 Java_jdk_internal_misc_VM_getRuntimeArguments(JNIEnv *env, jclass cls) { 55 return JVM_GetVmArguments(env); 56 } 57 58 JNIEXPORT void JNICALL 59 Java_jdk_internal_misc_VM_initializeFromArchive(JNIEnv *env, jclass ignore, 60 jclass c) { 61 JVM_InitializeFromArchive(env, c); 62 }