3bc69d393d
Co-authored-by: Alan Bateman <alan.bateman@oracle.com> Co-authored-by: Alex Buckley <alex.buckley@oracle.com> Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com> Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com> Co-authored-by: Karen Kinnear <karen.kinnear@oracle.com> Co-authored-by: Magnus Ihse Bursie <magnus.ihse.bursie@oracle.com> Co-authored-by: Mandy Chung <mandy.chung@oracle.com> Co-authored-by: Mark Reinhold <mark.reinhold@oracle.com> Co-authored-by: Paul Sandoz <paul.sandoz@oracle.com> Reviewed-by: alanb, chegar, ihse, mduigou
115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
/*
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* Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "jni.h"
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#include "jni_util.h"
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#include "jvm.h"
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#include "jdk_util.h"
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#include "sun_misc_Version.h"
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char jvm_special_version = '\0';
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char jdk_special_version = '\0';
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static void setStaticIntField(JNIEnv* env, jclass cls, const char* name, jint value)
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{
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jfieldID fid;
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fid = (*env)->GetStaticFieldID(env, cls, name, "I");
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if (fid != 0) {
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(*env)->SetStaticIntField(env, cls, fid, value);
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}
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}
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typedef void (JNICALL *GetJvmVersionInfo_fp)(JNIEnv*, jvm_version_info*, size_t);
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JNIEXPORT jboolean JNICALL
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Java_sun_misc_Version_getJvmVersionInfo(JNIEnv *env, jclass cls)
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{
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jvm_version_info info;
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GetJvmVersionInfo_fp func_p;
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if (!JDK_InitJvmHandle()) {
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JNU_ThrowInternalError(env, "Handle for JVM not found for symbol lookup");
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return JNI_FALSE;
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}
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func_p = (GetJvmVersionInfo_fp) JDK_FindJvmEntry("JVM_GetVersionInfo");
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if (func_p == NULL) {
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return JNI_FALSE;
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}
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(*func_p)(env, &info, sizeof(info));
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setStaticIntField(env, cls, "jvm_major_version", JVM_VERSION_MAJOR(info.jvm_version));
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JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
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setStaticIntField(env, cls, "jvm_minor_version", JVM_VERSION_MINOR(info.jvm_version));
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JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
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setStaticIntField(env, cls, "jvm_micro_version", JVM_VERSION_MICRO(info.jvm_version));
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JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
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setStaticIntField(env, cls, "jvm_build_number", JVM_VERSION_BUILD(info.jvm_version));
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JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
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setStaticIntField(env, cls, "jvm_update_version", info.update_version);
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JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
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jvm_special_version = info.special_update_version;
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return JNI_TRUE;
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}
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JNIEXPORT jstring JNICALL
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Java_sun_misc_Version_getJvmSpecialVersion(JNIEnv *env, jclass cls) {
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char s[2];
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jstring special;
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s[0] = jvm_special_version;
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s[1] = '\0';
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special = (*env)->NewStringUTF(env, s);
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return special;
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}
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JNIEXPORT void JNICALL
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Java_sun_misc_Version_getJdkVersionInfo(JNIEnv *env, jclass cls)
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{
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jdk_version_info info;
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JDK_GetVersionInfo0(&info, sizeof(info));
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setStaticIntField(env, cls, "jdk_major_version", JDK_VERSION_MAJOR(info.jdk_version));
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JNU_CHECK_EXCEPTION(env);
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setStaticIntField(env, cls, "jdk_minor_version", JDK_VERSION_MINOR(info.jdk_version));
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JNU_CHECK_EXCEPTION(env);
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setStaticIntField(env, cls, "jdk_micro_version", JDK_VERSION_MICRO(info.jdk_version));
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JNU_CHECK_EXCEPTION(env);
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setStaticIntField(env, cls, "jdk_build_number", JDK_VERSION_BUILD(info.jdk_version));
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JNU_CHECK_EXCEPTION(env);
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setStaticIntField(env, cls, "jdk_update_version", info.update_version);
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JNU_CHECK_EXCEPTION(env);
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jdk_special_version = info.special_update_version;
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}
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JNIEXPORT jstring JNICALL
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Java_sun_misc_Version_getJdkSpecialVersion(JNIEnv *env, jclass cls) {
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char s[2];
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jstring special;
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s[0] = jdk_special_version;
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s[1] = '\0';
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special = (*env)->NewStringUTF(env, s);
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return special;
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}
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