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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package com.oracle.svm.core;
import org.graalvm.compiler.serviceprovider.JavaVersionUtil;
import org.graalvm.nativeimage.Platform;
import org.graalvm.nativeimage.Platforms;
import org.graalvm.nativeimage.c.type.CCharPointer;
import com.oracle.svm.core.c.CGlobalData;
import com.oracle.svm.core.c.CGlobalDataFactory;
import com.oracle.svm.core.util.Utf8;
import com.oracle.svm.core.util.VMError;
public final class VM {
@Platforms(Platform.HOSTED_ONLY.class) //
public static final String valueSeparator = "=";
@Platforms(Platform.HOSTED_ONLY.class) //
private static final String versionValue = getVersionValue();
@Platforms(Platform.HOSTED_ONLY.class)
private static String getVersionValue() {
String version = System.getProperty("org.graalvm.version");
VMError.guarantee(version != null);
version = VM.class.getName() + valueSeparator + "GraalVM " + version;
version += " Java " + JavaVersionUtil.JAVA_SPEC;
String config = System.getProperty("org.graalvm.config", "");
if (!config.isEmpty()) {
version += " " + config;
}
return version;
}
private static final String VERSION_INFO_SYMBOL_NAME = "__svm_version_info";
private static final CGlobalData<CCharPointer> VERSION_INFO = CGlobalDataFactory.createCString(versionValue, VERSION_INFO_SYMBOL_NAME);
private static final int versionValueHash = versionValue.hashCode();
public static String getVersion() {
CCharPointer versionInfoBytes = VERSION_INFO.get();
String version = Utf8.utf8ToString(versionInfoBytes);
if (version == null || version.hashCode() != versionValueHash) {
VMError.shouldNotReachHere("HashCode mismatch for " + VERSION_INFO_SYMBOL_NAME +
": actual " + (version == null ? "null" : String.valueOf(version.hashCode())) +
" (expected " + versionValueHash + ")");
}
return SubstrateUtil.split(version, valueSeparator)[1];
}
}