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diff src/share/vm/oops/klassKlass.cpp @ 2177:3582bf76420e

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6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank
author coleenp
date Thu, 27 Jan 2011 16:11:27 -0800
parents f95d63e2154a
children d25d4ca69222 e5383553fd4e
line wrap: on
line diff
--- a/src/share/vm/oops/klassKlass.cpp	Thu Jan 27 13:42:28 2011 -0800
+++ b/src/share/vm/oops/klassKlass.cpp	Thu Jan 27 16:11:27 2011 -0800
@@ -37,8 +37,7 @@
 #include "oops/objArrayKlass.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/oop.inline2.hpp"
-#include "oops/symbolKlass.hpp"
-#include "oops/symbolOop.hpp"
+#include "oops/symbol.hpp"
 #include "oops/typeArrayKlass.hpp"
 #include "runtime/handles.inline.hpp"
 #ifndef SERIALGC
@@ -70,7 +69,6 @@
   MarkSweep::mark_and_push(k->adr_secondary_super_cache());
   MarkSweep::mark_and_push(k->adr_secondary_supers());
   MarkSweep::mark_and_push(k->adr_java_mirror());
-  MarkSweep::mark_and_push(k->adr_name());
   // We follow the subklass and sibling links at the end of the
   // marking phase, since otherwise following them will prevent
   // class unloading (all classes are transitively linked from
@@ -90,7 +88,6 @@
   PSParallelCompact::mark_and_push(cm, k->adr_secondary_super_cache());
   PSParallelCompact::mark_and_push(cm, k->adr_secondary_supers());
   PSParallelCompact::mark_and_push(cm, k->adr_java_mirror());
-  PSParallelCompact::mark_and_push(cm, k->adr_name());
   // We follow the subklass and sibling links at the end of the
   // marking phase, since otherwise following them will prevent
   // class unloading (all classes are transitively linked from
@@ -110,7 +107,6 @@
   blk->do_oop(k->adr_secondary_super_cache());
   blk->do_oop(k->adr_secondary_supers());
   blk->do_oop(k->adr_java_mirror());
-  blk->do_oop(k->adr_name());
   // The following are in the perm gen and are treated
   // specially in a later phase of a perm gen collection; ...
   assert(oop(k)->is_perm(), "should be in perm");
@@ -144,8 +140,6 @@
   if (mr.contains(adr)) blk->do_oop(adr);
   adr = k->adr_java_mirror();
   if (mr.contains(adr)) blk->do_oop(adr);
-  adr = k->adr_name();
-  if (mr.contains(adr)) blk->do_oop(adr);
   // The following are "weak links" in the perm gen and are
   // treated specially in a later phase of a perm gen collection.
   assert(oop(k)->is_perm(), "should be in perm");
@@ -174,7 +168,6 @@
   MarkSweep::adjust_pointer(k->adr_secondary_super_cache());
   MarkSweep::adjust_pointer(k->adr_secondary_supers());
   MarkSweep::adjust_pointer(k->adr_java_mirror());
-  MarkSweep::adjust_pointer(k->adr_name());
   MarkSweep::adjust_pointer(k->adr_subklass());
   MarkSweep::adjust_pointer(k->adr_next_sibling());
   return size;
@@ -256,9 +249,4 @@
     guarantee(k->java_mirror()->is_perm(),       "should be in permspace");
     guarantee(k->java_mirror()->is_instance(),   "should be instance");
   }
-  if (k->name() != NULL) {
-    guarantee(Universe::heap()->is_in_permanent(k->name()),
-              "should be in permspace");
-    guarantee(k->name()->is_symbol(), "should be symbol");
-  }
 }