[GR-71287] Reduce image size when using JFR.

PullRequest: graal/22588

Author: christianhaeubl

substratevm/mx.substratevm/suite.py

@@ -383,6 +383,8 @@
                     "jdk.jfr.internal",
                     "jdk.jfr.internal.event",
                     "jdk.jfr.internal.jfc",
+                    "jdk.jfr.internal.settings",
+                    "jdk.jfr.internal.tracing",
                 ],
                 "jdk.internal.vm.ci": [
                     "jdk.vm.ci.meta",

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/Target_jdk_jfr_internal_settings_MethodSetting.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2025, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2025, 2025, IBM Inc. 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.jfr;
+
+import java.util.List;
+
+import com.oracle.svm.core.annotate.Substitute;
+import com.oracle.svm.core.annotate.TargetClass;
+
+import jdk.jfr.internal.PlatformEventType;
+import jdk.jfr.internal.settings.MethodSetting;
+
+@SuppressWarnings({"unused", "static-method"}) //
+@TargetClass(value = MethodSetting.class)
+public final class Target_jdk_jfr_internal_settings_MethodSetting {
+    @Substitute
+    private void apply(PlatformEventType eventType, List<String> filters) {
+        SubstrateJVM.getLogging().logJfrSettingWarning("Method timing and tracing is not supported yet.");
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/Target_jdk_jfr_internal_tracing_PlatformTracer.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2025, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2025, 2025, IBM Inc. 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.jfr;
+
+import com.oracle.svm.core.annotate.Substitute;
+import com.oracle.svm.core.annotate.TargetClass;
+
+import jdk.jfr.internal.tracing.PlatformTracer;
+
+/**
+ * This class is not supported at the moment. So, we completely replace it with an empty
+ * implementation to reduce the image size.
+ */
+@Substitute
+@TargetClass(value = PlatformTracer.class)
+public final class Target_jdk_jfr_internal_tracing_PlatformTracer {
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/logging/JfrLogging.java

@@ -67,6 +67,12 @@ public void warnInternal(String message) {
         log(tagSetId, JfrLogConfiguration.JfrLogLevel.WARNING.level, message);
     }
 
+    @RestrictHeapAccess(access = NO_ALLOCATION, reason = "May be used during OOME emergency dump.")
+    public void logJfrSettingWarning(String message) {
+        int tagSetId = SubstrateUtil.cast(LogTag.JFR_SETTING, Target_jdk_jfr_internal_LogTag.class).id;
+        log(tagSetId, JfrLogConfiguration.JfrLogLevel.WARNING.level, message);
+    }
+
     @RestrictHeapAccess(access = NO_ALLOCATION, reason = "May be used during OOME emergency dump.")
     public void log(int tagSetId, int level, String message) {
         if (message == null) {