[GR-62769] Disable libgraal-specific API if it isn't needed.

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/libgraal/LibGraalBuild.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2025, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.libgraal;
+
+import java.util.function.BooleanSupplier;
+
+import com.oracle.svm.core.SubstrateOptions;
+
+public class LibGraalBuild implements BooleanSupplier {
+    @Override
+    public boolean getAsBoolean() {
+        return !SubstrateOptions.LibGraalClassLoader.getValue().isBlank();
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/libgraal/LibGraalRuntimeSupportImpl.java

@@ -24,15 +24,14 @@
  */
 package com.oracle.svm.core.libgraal;
 
-import com.oracle.svm.core.Isolates;
+import org.graalvm.nativeimage.libgraal.impl.LibGraalRuntimeSupport;
 
+import com.oracle.svm.core.Isolates;
 import com.oracle.svm.core.feature.AutomaticallyRegisteredImageSingleton;
 import com.oracle.svm.core.heap.Heap;
 import com.oracle.svm.core.util.VMError;
 
-import org.graalvm.nativeimage.libgraal.impl.LibGraalRuntimeSupport;
-
-@AutomaticallyRegisteredImageSingleton({LibGraalRuntimeSupport.class})
+@AutomaticallyRegisteredImageSingleton(value = LibGraalRuntimeSupport.class, onlyWith = LibGraalBuild.class)
 public final class LibGraalRuntimeSupportImpl implements LibGraalRuntimeSupport {
 
     @Override

substratevm/src/com.oracle.svm.graal/src/com/oracle/svm/graal/hosted/GraalCompilerFeature.java

@@ -28,20 +28,21 @@
 import java.util.List;
 import java.util.function.BooleanSupplier;
 
-import com.oracle.svm.util.ReflectionUtil;
-import jdk.graal.compiler.serviceprovider.GlobalAtomicLong;
-import org.graalvm.nativeimage.libgraal.hosted.GlobalData;
 import org.graalvm.nativeimage.ImageSingletons;
 import org.graalvm.nativeimage.hosted.Feature;
 import org.graalvm.nativeimage.hosted.FieldValueTransformer;
 import org.graalvm.nativeimage.hosted.RuntimeReflection;
 
+import com.oracle.svm.core.c.GlobalLongSupplier;
 import com.oracle.svm.core.feature.InternalFeature;
 import com.oracle.svm.core.graal.GraalConfiguration;
+import com.oracle.svm.core.graal.RuntimeCompilation;
 import com.oracle.svm.graal.GraalCompilerSupport;
 import com.oracle.svm.hosted.FeatureImpl;
+import com.oracle.svm.util.ReflectionUtil;
 
 import jdk.graal.compiler.debug.DebugContext;
+import jdk.graal.compiler.serviceprovider.GlobalAtomicLong;
 import jdk.vm.ci.meta.JavaKind;
 
 /**
@@ -64,8 +65,11 @@ public List<Class<? extends Feature>> getRequiredFeatures() {
 
     @Override
     public void duringSetup(DuringSetupAccess c) {
-        ImageSingletons.add(GraalCompilerSupport.class, new GraalCompilerSupport());
+        if (!RuntimeCompilation.isEnabled()) {
+            return;
+        }
 
+        ImageSingletons.add(GraalCompilerSupport.class, new GraalCompilerSupport());
         ((FeatureImpl.DuringSetupAccessImpl) c).registerClassReachabilityListener(GraalCompilerSupport::registerPhaseStatistics);
     }
 
@@ -76,12 +80,17 @@ void register(BeforeAnalysisAccess access) {
 
         @Override
         public Object transform(Object receiver, Object originalValue) {
-            return GlobalData.createGlobal(((GlobalAtomicLong) receiver).getInitialValue());
+            long initialValue = ((GlobalAtomicLong) receiver).getInitialValue();
+            return new GlobalLongSupplier(initialValue);
         }
     }
 
     @Override
     public void beforeAnalysis(BeforeAnalysisAccess c) {
+        if (!RuntimeCompilation.isEnabled()) {
+            return;
+        }
+
         DebugContext debug = DebugContext.forCurrentThread();
 
         new GlobalAtomicLongTransformer().register(c);

substratevm/src/com.oracle.svm.hosted/src/com/oracle/svm/hosted/GlobalDataSupportImpl.java

@@ -26,12 +26,13 @@
 
 import java.util.function.Supplier;
 
+import org.graalvm.nativeimage.libgraal.impl.GlobalDataSupport;
+
 import com.oracle.svm.core.c.GlobalLongSupplier;
 import com.oracle.svm.core.feature.AutomaticallyRegisteredImageSingleton;
+import com.oracle.svm.core.libgraal.LibGraalBuild;
 
-import org.graalvm.nativeimage.libgraal.impl.GlobalDataSupport;
-
-@AutomaticallyRegisteredImageSingleton(GlobalDataSupport.class)
+@AutomaticallyRegisteredImageSingleton(value = GlobalDataSupport.class, onlyWith = LibGraalBuild.class)
 public final class GlobalDataSupportImpl implements GlobalDataSupport {
     @Override
     public Supplier<Long> createGlobal(long initialValue) {