src/share/vm/prims/whitebox.cpp

rev 7970 : 8061715: gc/g1/TestShrinkAuxiliaryData15.java fails
Summary: added WhiteBox methods to count regions and exact aux data sizes
Reviewed-by:

*** 293,302 ****
--- 293,308 ----
    oop result = JNIHandles::resolve(obj);
    const HeapRegion* hr = g1->heap_region_containing(result);
    return hr->is_humongous();
  WB_END
  
+ WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o))
+   G1CollectedHeap* g1 = G1CollectedHeap::heap();
+   size_t nr = g1->max_regions();
+   return (jlong)nr;
+ WB_END
+ 
  WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o))
    G1CollectedHeap* g1 = G1CollectedHeap::heap();
    size_t nr = g1->num_free_regions();
    return (jlong)nr;
  WB_END
*** 316,325 ****
--- 322,339 ----
  WB_END
  
  WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o))
    return (jint)HeapRegion::GrainBytes;
  WB_END
+ 
+ WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env))
+   ResourceMark rm(THREAD);
+   G1CollectedHeap* g1h = G1CollectedHeap::heap();
+   MemoryUsage usage = g1h->get_auxiliary_data_memory_usage();
+   Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL);
+   return JNIHandles::make_local(env, h());
+ WB_END
  #endif // INCLUDE_ALL_GCS
  
  #if INCLUDE_NMT
  // Alloc memory using the test memory type so that we can use that to see if
  // NMT picks it up correctly
*** 1238,1250 ****
--- 1252,1267 ----
    {CC"readFromNoaccessArea",CC"()V",                  (void*)&WB_ReadFromNoaccessArea},
    {CC"stressVirtualSpaceResize",CC"(JJJ)I",           (void*)&WB_StressVirtualSpaceResize},
  #if INCLUDE_ALL_GCS
    {CC"g1InConcurrentMark", CC"()Z",                   (void*)&WB_G1InConcurrentMark},
    {CC"g1IsHumongous",      CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous     },
+   {CC"g1NumMaxRegions",    CC"()J",                   (void*)&WB_G1NumMaxRegions  },
    {CC"g1NumFreeRegions",   CC"()J",                   (void*)&WB_G1NumFreeRegions  },
    {CC"g1RegionSize",       CC"()I",                   (void*)&WB_G1RegionSize      },
    {CC"g1StartConcMarkCycle",       CC"()Z",           (void*)&WB_G1StartMarkCycle  },
+   {CC"g1AuxiliaryMemoryUsage", CC"()Ljava/lang/management/MemoryUsage;",
+                                                       (void*)&WB_G1AuxiliaryMemoryUsage  },
  #endif // INCLUDE_ALL_GCS
  #if INCLUDE_NMT
    {CC"NMTMalloc",           CC"(J)J",                 (void*)&WB_NMTMalloc          },
    {CC"NMTMallocWithPseudoStack", CC"(JI)J",           (void*)&WB_NMTMallocWithPseudoStack},
    {CC"NMTFree",             CC"(J)V",                 (void*)&WB_NMTFree            },