src/hotspot/share/prims/whitebox.cpp

*** 59,68 ****
--- 59,71 ----
  #include "runtime/vm_version.hpp"
  #include "utilities/align.hpp"
  #include "utilities/debug.hpp"
  #include "utilities/exceptions.hpp"
  #include "utilities/macros.hpp"
+ #if INCLUDE_CDS
+ #include "prims/cdsoffsets.hpp"
+ #endif // INCLUDE_CDS
  #if INCLUDE_ALL_GCS
  #include "gc/g1/concurrentMarkThread.hpp"
  #include "gc/g1/g1CollectedHeap.inline.hpp"
  #include "gc/g1/g1ConcurrentMark.hpp"
  #include "gc/g1/heapRegionRemSet.hpp"
*** 1728,1737 ****
--- 1731,1752 ----
  #else
    return false;
  #endif
  WB_END
  
+ 
+ #if INCLUDE_CDS
+ 
+ WB_ENTRY(jint, WB_GetOffsetForName(JNIEnv* env, jobject o, jstring name))
+   ResourceMark rm;
+   char* c_name = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(name));
+   int result = CDSOffsets::find_offset(c_name);
+   return (jint)result;
+ WB_END
+ 
+ #endif // INCLUDE_CDS
+ 
  WB_ENTRY(jint, WB_HandshakeWalkStack(JNIEnv* env, jobject wb, jobject thread_handle, jboolean all_threads))
    class TraceSelfClosure : public ThreadClosure {
      jint _num_threads_completed;
  
      void do_thread(Thread* th) {
*** 1916,1925 ****
--- 1931,1943 ----
        (void*)&WB_GetCompressedOopsMaxHeapSize},
    {CC"printHeapSizes",     CC"()V",                   (void*)&WB_PrintHeapSizes    },
    {CC"runMemoryUnitTests", CC"()V",                   (void*)&WB_RunMemoryUnitTests},
    {CC"readFromNoaccessArea",CC"()V",                  (void*)&WB_ReadFromNoaccessArea},
    {CC"stressVirtualSpaceResize",CC"(JJJ)I",           (void*)&WB_StressVirtualSpaceResize},
+ #if INCLUDE_CDS
+   {CC"getOffsetForName0", CC"(Ljava/lang/String;)I",  (void*)&WB_GetOffsetForName},
+ #endif
  #if INCLUDE_ALL_GCS
    {CC"g1InConcurrentMark", CC"()Z",                   (void*)&WB_G1InConcurrentMark},
    {CC"g1IsHumongous0",      CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous     },
    {CC"g1BelongsToHumongousRegion0", CC"(J)Z",         (void*)&WB_G1BelongsToHumongousRegion},
    {CC"g1BelongsToFreeRegion0", CC"(J)Z",              (void*)&WB_G1BelongsToFreeRegion},