src/hotspot/os/windows/gc/z/zSyscall_windows.cpp

*** 54,58 ****
--- 54,69 ----
    lookup_symbol(VirtualAlloc2,      "KernelBase", "VirtualAlloc2");
    lookup_symbol(VirtualFreeEx,      "KernelBase", "VirtualFreeEx");
    lookup_symbol(MapViewOfFile3,     "KernelBase", "MapViewOfFile3");
    lookup_symbol(UnmapViewOfFile2,   "KernelBase", "UnmapViewOfFile2");
  }
+ 
+ bool ZSyscall::is_os_supported() {
+   char ebuf[1024];
+   void* const handle = os::dll_load("KernelBase", ebuf, sizeof(ebuf));
+   if (handle == NULL) {
+     assert(false, "Failed to load library: KernelBase");
+     return false;
+   }
+ 
+   return os::dll_lookup(handle, "VirtualAlloc2") != NULL;
+ }