[GR-59791] Backport to 24.1: Make PosixPlatformTimeUtils.javaTimeSystemUTC uninterruptible

PullRequest: graal/19405

Author: OracleLabsAutomation

substratevm/src/com.oracle.svm.core.posix/src/com/oracle/svm/core/posix/PosixPlatformTimeUtils.java

@@ -26,6 +26,7 @@
 
 import org.graalvm.nativeimage.StackValue;
 
+import com.oracle.svm.core.Uninterruptible;
 import com.oracle.svm.core.feature.AutomaticallyRegisteredImageSingleton;
 import com.oracle.svm.core.posix.headers.Time;
 import com.oracle.svm.core.util.BasedOnJDKFile;
@@ -36,10 +37,20 @@ public final class PosixPlatformTimeUtils extends PlatformTimeUtils {
 
     @Override
     @BasedOnJDKFile("https://github.com/openjdk/jdk/blob/jdk-24+3/src/hotspot/os/posix/os_posix.cpp#L1409-L1415")
-    protected SecondsNanos javaTimeSystemUTC() {
+    @Uninterruptible(reason = "Must not migrate platform threads when executing on a virtual thread.")
+    public SecondsNanos javaTimeSystemUTC() {
         Time.timespec ts = StackValue.get(Time.timespec.class);
         int status = PosixUtils.clock_gettime(Time.CLOCK_REALTIME(), ts);
         PosixUtils.checkStatusIs0(status, "javaTimeSystemUTC: clock_gettime(CLOCK_REALTIME) failed.");
-        return new SecondsNanos(ts.tv_sec(), ts.tv_nsec());
+        return allocateSecondsNanos0(ts.tv_sec(), ts.tv_nsec());
+    }
+
+    @Uninterruptible(reason = "Wrap the now safe call to interruptibly allocate a SecondsNanos object.", calleeMustBe = false)
+    private static SecondsNanos allocateSecondsNanos0(long seconds, long nanos) {
+        return allocateSecondsNanos(seconds, nanos);
+    }
+
+    private static SecondsNanos allocateSecondsNanos(long seconds, long nanos) {
+        return new SecondsNanos(seconds, nanos);
     }
 }