420 
421 void ArchiveHeapLoader::fill_failed_loaded_heap() {
422   assert(_loading_failed, "must be");
423   if (_loaded_heap_bottom != 0) {
424     assert(_loaded_heap_top != 0, "must be");
425     HeapWord* bottom = (HeapWord*)_loaded_heap_bottom;
426     HeapWord* top = (HeapWord*)_loaded_heap_top;
427     Universe::heap()->fill_with_objects(bottom, top - bottom);
428   }
429 }
430 
431 class PatchNativePointers: public BitMapClosure {
432   Metadata** _start;
433 
434  public:
435   PatchNativePointers(Metadata** start) : _start(start) {}
436 
437   bool do_bit(size_t offset) {
438     Metadata** p = _start + offset;
439     *p = (Metadata*)(address(*p) + MetaspaceShared::relocation_delta());
440     // Currently we have only Klass pointers in heap objects.
441     // This needs to be relaxed when we support other types of native
442     // pointers such as Method.
443     assert(((Klass*)(*p))->is_klass(), "must be");
444     return true;
445   }
446 };
447 
448 void ArchiveHeapLoader::patch_native_pointers() {
449   if (MetaspaceShared::relocation_delta() == 0) {
450     return;
451   }
452 
453   FileMapRegion* r = FileMapInfo::current_info()->region_at(MetaspaceShared::hp);
454   if (r->mapped_base() != nullptr && r->has_ptrmap()) {
455     log_info(cds, heap)("Patching native pointers in heap region");
456     BitMapView bm = FileMapInfo::current_info()->ptrmap_view(MetaspaceShared::hp);
457     PatchNativePointers patcher((Metadata**)r->mapped_base() + FileMapInfo::current_info()->heap_ptrmap_start_pos());
458     bm.iterate(&patcher);
459   }
460 }
461 #endif // INCLUDE_CDS_JAVA_HEAP

420 
421 void ArchiveHeapLoader::fill_failed_loaded_heap() {
422   assert(_loading_failed, "must be");
423   if (_loaded_heap_bottom != 0) {
424     assert(_loaded_heap_top != 0, "must be");
425     HeapWord* bottom = (HeapWord*)_loaded_heap_bottom;
426     HeapWord* top = (HeapWord*)_loaded_heap_top;
427     Universe::heap()->fill_with_objects(bottom, top - bottom);
428   }
429 }
430 
431 class PatchNativePointers: public BitMapClosure {
432   Metadata** _start;
433 
434  public:
435   PatchNativePointers(Metadata** start) : _start(start) {}
436 
437   bool do_bit(size_t offset) {
438     Metadata** p = _start + offset;
439     *p = (Metadata*)(address(*p) + MetaspaceShared::relocation_delta());




440     return true;
441   }
442 };
443 
444 void ArchiveHeapLoader::patch_native_pointers() {
445   if (MetaspaceShared::relocation_delta() == 0) {
446     return;
447   }
448 
449   FileMapRegion* r = FileMapInfo::current_info()->region_at(MetaspaceShared::hp);
450   if (r->mapped_base() != nullptr && r->has_ptrmap()) {
451     log_info(cds, heap)("Patching native pointers in heap region");
452     BitMapView bm = FileMapInfo::current_info()->ptrmap_view(MetaspaceShared::hp);
453     PatchNativePointers patcher((Metadata**)r->mapped_base() + FileMapInfo::current_info()->heap_ptrmap_start_pos());
454     bm.iterate(&patcher);
455   }
456 }
457 #endif // INCLUDE_CDS_JAVA_HEAP