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1 /* |
1 /* |
2 * Copyright (c) 2004, 2014, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. Oracle designates this |
7 * published by the Free Software Foundation. Oracle designates this |
31 #include "jvm.h" |
31 #include "jvm.h" |
32 #include "jdk_util.h" |
32 #include "jdk_util.h" |
33 |
33 |
34 #include "sun_misc_VM.h" |
34 #include "sun_misc_VM.h" |
35 |
35 |
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36 /* Only register the performance-critical methods */ |
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37 static JNINativeMethod methods[] = { |
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38 {"getNanoTimeAdjustment", "(J)J", (void *)&JVM_GetNanoTimeAdjustment} |
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39 }; |
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40 |
36 JNIEXPORT jobject JNICALL |
41 JNIEXPORT jobject JNICALL |
37 Java_sun_misc_VM_latestUserDefinedLoader(JNIEnv *env, jclass cls) { |
42 Java_sun_misc_VM_latestUserDefinedLoader(JNIEnv *env, jclass cls) { |
38 return JVM_LatestUserDefinedLoader(env); |
43 return JVM_LatestUserDefinedLoader(env); |
39 } |
44 } |
40 |
45 |
47 if (!JDK_InitJvmHandle()) { |
52 if (!JDK_InitJvmHandle()) { |
48 JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup"); |
53 JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup"); |
49 return; |
54 return; |
50 } |
55 } |
51 |
56 |
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57 // Registers implementations of native methods described in methods[] |
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58 // above. |
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59 // In particular, registers JVM_GetNanoTimeAdjustment as the implementation |
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60 // of the native sun.misc.VM.getNanoTimeAdjustment - avoiding the cost of |
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61 // introducing a Java_sun_misc_VM_getNanoTimeAdjustment wrapper |
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62 (*env)->RegisterNatives(env, cls, |
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63 methods, sizeof(methods)/sizeof(methods[0])); |
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64 |
52 func_p = (GetJvmVersionInfo_fp) JDK_FindJvmEntry("JVM_GetVersionInfo"); |
65 func_p = (GetJvmVersionInfo_fp) JDK_FindJvmEntry("JVM_GetVersionInfo"); |
53 if (func_p != NULL) { |
66 if (func_p != NULL) { |
54 jvm_version_info info; |
67 jvm_version_info info; |
55 |
68 |
56 memset(&info, 0, sizeof(info)); |
69 memset(&info, 0, sizeof(info)); |