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diff src/share/vm/memory/universe.cpp @ 7176:59c790074993

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8003635: NPG: AsynchGetCallTrace broken by Method* virtual call Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer. Reviewed-by: dholmes, sspitsyn, dcubed, jmasa
author coleenp
date Wed, 28 Nov 2012 17:50:21 -0500
parents 80e866b1d053
children c24f778e9401
line wrap: on
line diff
--- a/src/share/vm/memory/universe.cpp	Wed Nov 28 08:43:26 2012 -0800
+++ b/src/share/vm/memory/universe.cpp	Wed Nov 28 17:50:21 2012 -0500
@@ -425,14 +425,10 @@
 // from MetaspaceObj, because the latter does not have virtual functions.
 // If the metadata type has a vtable, it cannot be shared in the read-only
 // section of the CDS archive, because the vtable pointer is patched.
-static inline void* dereference(void* addr) {
-  return *(void**)addr;
-}
-
 static inline void add_vtable(void** list, int* n, void* o, int count) {
   guarantee((*n) < count, "vtable list too small");
-  void* vtable = dereference(o);
-  assert(dereference(vtable) != NULL, "invalid vtable");
+  void* vtable = dereference_vptr(o);
+  assert(*(void**)(vtable) != NULL, "invalid vtable");
   list[(*n)++] = vtable;
 }