1 /* |
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2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include "jni.h" |
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27 #include "jni_util.h" |
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28 #include "jvm.h" |
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29 #include "jdk_util.h" |
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30 |
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31 #include "sun_misc_Version.h" |
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32 |
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33 static void setStaticIntField(JNIEnv* env, jclass cls, const char* name, jint value) |
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34 { |
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35 jfieldID fid; |
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36 fid = (*env)->GetStaticFieldID(env, cls, name, "I"); |
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37 if (fid != 0) { |
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38 (*env)->SetStaticIntField(env, cls, fid, value); |
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39 } |
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40 } |
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41 |
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42 typedef void (JNICALL *GetJvmVersionInfo_fp)(JNIEnv*, jvm_version_info*, size_t); |
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43 |
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44 JNIEXPORT jboolean JNICALL |
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45 Java_sun_misc_Version_getJvmVersionInfo(JNIEnv *env, jclass cls) |
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46 { |
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47 jvm_version_info info; |
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48 GetJvmVersionInfo_fp func_p; |
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49 |
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50 if (!JDK_InitJvmHandle()) { |
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51 JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup"); |
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52 return JNI_FALSE; |
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53 } |
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54 func_p = (GetJvmVersionInfo_fp) JDK_FindJvmEntry("JVM_GetVersionInfo"); |
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55 if (func_p == NULL) { |
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56 return JNI_FALSE; |
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57 } |
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58 |
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59 (*func_p)(env, &info, sizeof(info)); |
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60 setStaticIntField(env, cls, "jvm_major_version", JVM_VERSION_MAJOR(info.jvm_version)); |
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61 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); |
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62 setStaticIntField(env, cls, "jvm_minor_version", JVM_VERSION_MINOR(info.jvm_version)); |
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63 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); |
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64 setStaticIntField(env, cls, "jvm_security_version", JVM_VERSION_SECURITY(info.jvm_version)); |
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65 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); |
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66 setStaticIntField(env, cls, "jvm_build_number", JVM_VERSION_BUILD(info.jvm_version)); |
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67 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); |
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68 setStaticIntField(env, cls, "jvm_patch_version", info.patch_version); |
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69 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); |
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70 |
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71 return JNI_TRUE; |
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72 } |
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73 |
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74 JNIEXPORT void JNICALL |
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75 Java_sun_misc_Version_getJdkVersionInfo(JNIEnv *env, jclass cls) |
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76 { |
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77 jdk_version_info info; |
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78 |
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79 JDK_GetVersionInfo0(&info, sizeof(info)); |
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80 setStaticIntField(env, cls, "jdk_major_version", JDK_VERSION_MAJOR(info.jdk_version)); |
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81 JNU_CHECK_EXCEPTION(env); |
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82 setStaticIntField(env, cls, "jdk_minor_version", JDK_VERSION_MINOR(info.jdk_version)); |
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83 JNU_CHECK_EXCEPTION(env); |
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84 setStaticIntField(env, cls, "jdk_security_version", JDK_VERSION_SECURITY(info.jdk_version)); |
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85 JNU_CHECK_EXCEPTION(env); |
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86 setStaticIntField(env, cls, "jdk_build_number", JDK_VERSION_BUILD(info.jdk_version)); |
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87 JNU_CHECK_EXCEPTION(env); |
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88 setStaticIntField(env, cls, "jdk_patch_version", info.patch_version); |
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89 JNU_CHECK_EXCEPTION(env); |
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90 } |
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