8349620: Add VMProps for static JDK

Reviewed-by: alanb, manc

src/hotspot/share/prims/whitebox.cpp

@@ -47,6 +47,7 @@
 #include "gc/shared/gcConfig.hpp"
 #include "gc/shared/gcLocker.inline.hpp"
 #include "gc/shared/genArguments.hpp"
+#include "jvm.h"
 #include "jvmtifiles/jvmtiEnv.hpp"
 #include "logging/log.hpp"
 #include "memory/iterator.hpp"
@@ -1804,6 +1805,10 @@ WB_ENTRY(jlong, WB_RootChunkWordSize(JNIEnv* env))
   return (jlong)Metaspace::reserve_alignment_words();
 WB_END
 
+WB_ENTRY(jboolean, WB_IsStaticallyLinked(JNIEnv* env, jobject wb))
+  return JVM_IsStaticallyLinked();
+WB_END
+
 //////////////
 
 WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size))
@@ -3003,7 +3008,8 @@ static JNINativeMethod methods[] = {
   {CC"printString", CC"(Ljava/lang/String;I)Ljava/lang/String;", (void*)&WB_PrintString},
   {CC"lockAndStuckInSafepoint", CC"()V", (void*)&WB_TakeLockAndHangInSafepoint},
   {CC"wordSize", CC"()J",                             (void*)&WB_WordSize},
-  {CC"rootChunkWordSize", CC"()J",                    (void*)&WB_RootChunkWordSize}
+  {CC"rootChunkWordSize", CC"()J",                    (void*)&WB_RootChunkWordSize},
+  {CC"isStatic", CC"()Z",                             (void*)&WB_IsStaticallyLinked}
 };
 
 

test/hotspot/jtreg/TEST.ROOT

@@ -92,7 +92,8 @@ requires.properties= \
     systemd.support \
     jdk.containerized \
     jlink.runtime.linkable \
-    jlink.packagedModules
+    jlink.packagedModules \
+    jdk.static
 
 # Minimum jtreg version
 requiredVersion=7.5.1+1

test/hotspot/jtreg/runtime/modules/ModulesSymLink.java

@@ -27,6 +27,7 @@
  * @bug 8220095
  * @requires os.family == "linux" | os.family == "mac"
  * @requires vm.flagless
+ * @requires !jdk.static
  * @library /test/lib
  * @modules java.management
  *          jdk.jlink

test/jdk/TEST.ROOT

@@ -111,7 +111,8 @@ requires.properties= \
     jdk.containerized \
     jdk.foreign.linker \
     jlink.runtime.linkable \
-    jlink.packagedModules
+    jlink.packagedModules \
+    jdk.static
 
 # Minimum jtreg version
 requiredVersion=7.5.1+1

test/jtreg-ext/requires/VMProps.java

@@ -140,6 +140,7 @@ public class VMProps implements Callable<Map<String, String>> {
         map.put("vm.flagless", this::isFlagless);
         map.put("jdk.foreign.linker", this::jdkForeignLinker);
         map.put("jlink.packagedModules", this::packagedModules);
+        map.put("jdk.static", this::isStatic);
         vmGC(map); // vm.gc.X = true/false
         vmGCforCDS(map); // may set vm.gc
         vmOptFinalFlags(map);
@@ -820,6 +821,10 @@ public class VMProps implements Callable<Map<String, String>> {
         return String.valueOf(CABI.current());
     }
 
+    private String isStatic() {
+        return Boolean.toString(WB.isStatic());
+    }
+
     /**
      * Dumps the map to the file if the file name is given as the property.
      * This functionality could be helpful to know context in the real

test/lib/jdk/test/whitebox/WhiteBox.java

@@ -798,4 +798,6 @@ public class WhiteBox {
 
   public native void preTouchMemory(long addr, long size);
   public native long rss();
+
+  public native boolean isStatic();
 }