added JVMCI specific option TraceClassLoadingStack to see why classes…

… are loaded
graalvm · Nov 26, 2015 · 25de325 · 25de325
1 parent 8c3de9a
commit 25de325
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/src/share/vm/classfile/classFileParser.cpp b/src/share/vm/classfile/classFileParser.cpp
@@ -4216,7 +4216,12 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
                    InstanceKlass::cast(class_loader->klass())->external_name());
       }
     }
-
+#if INCLUDE_JVMCI
+    if (TraceClassLoadingStack) {
+      // useful when investigating why a class is loaded
+      JavaThread::current()->print_stack_on(tty);
+    }
+#endif
     if (TraceClassResolution) {
       ResourceMark rm;
       // print out the superclass.

diff --git a/src/share/vm/jvmci/jvmci_globals.hpp b/src/share/vm/jvmci/jvmci_globals.hpp
@@ -93,6 +93,9 @@
                                                                             \
   develop(bool, TraceUncollectedSpeculations, false,                        \
           "Print message when a failed speculation was not collected")      \
+  product(intx, TraceClassLoadingStack, false,                              \
+          "Print stack when loading a class")                               \
+                                                                            \
 
 
 // Read default values for JVMCI globals