hotspot/src/share/vm/memory/universe.cpp

@@ -113,10 +113,11 @@
 oop Universe::_the_min_jint_string                   = NULL;
 LatestMethodCache* Universe::_finalizer_register_cache = NULL;
 LatestMethodCache* Universe::_loader_addClass_cache    = NULL;
 LatestMethodCache* Universe::_pd_implies_cache         = NULL;
 LatestMethodCache* Universe::_throw_illegal_access_error_cache = NULL;
+LatestMethodCache* Universe::_stackWalker_callback_cache = NULL;
 oop Universe::_out_of_memory_error_java_heap          = NULL;
 oop Universe::_out_of_memory_error_metaspace          = NULL;
 oop Universe::_out_of_memory_error_class_metaspace    = NULL;
 oop Universe::_out_of_memory_error_array_size         = NULL;
 oop Universe::_out_of_memory_error_gc_overhead_limit  = NULL;

@@ -238,10 +239,11 @@
   f->do_ptr((void**)&_the_empty_klass_array);
   _finalizer_register_cache->serialize(f);
   _loader_addClass_cache->serialize(f);
   _pd_implies_cache->serialize(f);
   _throw_illegal_access_error_cache->serialize(f);
+  _stackWalker_callback_cache->serialize(f);
 }
 
 void Universe::check_alignment(uintx size, uintx alignment, const char* name) {
   if (size < alignment || size % alignment != 0) {
     vm_exit_during_initialization(

@@ -672,10 +674,11 @@
   // Metaspace::initialize_shared_spaces() tries to populate them.
   Universe::_finalizer_register_cache = new LatestMethodCache();
   Universe::_loader_addClass_cache    = new LatestMethodCache();
   Universe::_pd_implies_cache         = new LatestMethodCache();
   Universe::_throw_illegal_access_error_cache = new LatestMethodCache();
+  Universe::_stackWalker_callback_cache = new LatestMethodCache();
 
   if (UseSharedSpaces) {
     // Read the data structures supporting the shared spaces (shared
     // system dictionary, symbol table, etc.).  After that, access to
     // the file (other than the mapped regions) is no longer needed, and

@@ -1046,10 +1049,21 @@
     }
     Universe::_pd_implies_cache->init(
       SystemDictionary::ProtectionDomain_klass(), m);
   }
 
+  // Setup method for stack walking
+  InstanceKlass::cast(SystemDictionary::AbstractStackWalker_klass())->link_class(CHECK_false);
+  m = InstanceKlass::cast(SystemDictionary::AbstractStackWalker_klass())->
+            find_method(vmSymbols::doStackWalk_name(),
+                        vmSymbols::doStackWalk_signature());
+  // Allow NULL which should only happen with bootstrapping.
+  if (m != NULL) {
+    Universe::_stackWalker_callback_cache->init(
+      SystemDictionary::AbstractStackWalker_klass(), m);
+  }
+
   // This needs to be done before the first scavenge/gc, since
   // it's an input to soft ref clearing policy.
   {
     MutexLocker x(Heap_lock);
     Universe::update_heap_info_at_gc();