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8169389: Use a bitmap to control StackTraceElement::toString format and save footprint
authorbchristi
Tue, 13 Dec 2016 12:36:13 -0800
changeset 42541 308a256d545e
parent 42502 cf139f925da0
child 42627 0e7a86ac37c2
8169389: Use a bitmap to control StackTraceElement::toString format and save footprint Reviewed-by: dfuchs, mchung
hotspot/src/share/vm/classfile/javaClasses.cpp file | annotate | diff | comparison | revisions
hotspot/src/share/vm/classfile/javaClasses.hpp file | annotate | diff | comparison | revisions 
--- a/hotspot/src/share/vm/classfile/javaClasses.cpp	Wed Jul 05 22:34:05 2017 +0200
+++ b/hotspot/src/share/vm/classfile/javaClasses.cpp	Tue Dec 13 12:36:13 2016 -0800
@@ -3643,7 +3643,7 @@
 int java_lang_StackTraceElement::moduleVersion_offset;
 int java_lang_StackTraceElement::classLoaderName_offset;
 int java_lang_StackTraceElement::declaringClass_offset;
-int java_lang_StackTraceElement::classOrLoaderModuleClassName_offset;
+int java_lang_StackTraceElement::declaringClassObject_offset;
 int java_lang_StackFrameInfo::_declaringClass_offset;
 int java_lang_StackFrameInfo::_memberName_offset;
 int java_lang_StackFrameInfo::_bci_offset;
@@ -3693,7 +3693,7 @@
 }
 
 void java_lang_StackTraceElement::set_declaringClassObject(oop element, oop value) {
-  element->obj_field_put(classOrLoaderModuleClassName_offset, value);
+  element->obj_field_put(declaringClassObject_offset, value);
 }
 
 // Support for java_lang_StackFrameInfo
@@ -3811,7 +3811,7 @@
   java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x;
 
   // java_lang_StackTraceElement
-  java_lang_StackTraceElement::classOrLoaderModuleClassName_offset= java_lang_StackTraceElement::hc_classOrLoaderModuleClassName_offset* x + header;
+  java_lang_StackTraceElement::declaringClassObject_offset = java_lang_StackTraceElement::hc_declaringClassObject_offset * x + header;
   java_lang_StackTraceElement::classLoaderName_offset = java_lang_StackTraceElement::hc_classLoaderName_offset * x + header;
   java_lang_StackTraceElement::moduleName_offset = java_lang_StackTraceElement::hc_moduleName_offset * x + header;
   java_lang_StackTraceElement::moduleVersion_offset = java_lang_StackTraceElement::hc_moduleVersion_offset * x + header;
@@ -4014,7 +4014,7 @@
 
   // java.lang.StackTraceElement
 
-  CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, classOrLoaderModuleClassName, "Ljava/lang/Object;");
+  CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClassObject, "Ljava/lang/Class;");
   CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, classLoaderName, "Ljava/lang/String;");
   CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, moduleName,      "Ljava/lang/String;");
   CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, moduleVersion,   "Ljava/lang/String;");
--- a/hotspot/src/share/vm/classfile/javaClasses.hpp	Wed Jul 05 22:34:05 2017 +0200
+++ b/hotspot/src/share/vm/classfile/javaClasses.hpp	Tue Dec 13 12:36:13 2016 -0800
@@ -1293,7 +1293,7 @@
 class java_lang_StackTraceElement: AllStatic {
  private:
   enum {
-    hc_classOrLoaderModuleClassName_offset = 0,
+    hc_declaringClassObject_offset    = 0,
     hc_classLoaderName_offset      = 1,
     hc_moduleName_offset           = 2,
     hc_moduleVersion_offset        = 3,
@@ -1303,7 +1303,7 @@
     hc_lineNumber_offset           = 7
   };
 
-  static int classOrLoaderModuleClassName_offset;
+  static int declaringClassObject_offset;
   static int classLoaderName_offset;
   static int moduleName_offset;
   static int moduleVersion_offset;
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