Exemplo n.º 1
0
void PSMarkSweep::mark_sweep_phase3() {
  // Adjust the pointers to reflect the new locations
  EventMark m("3 adjust pointers");
  TraceTime tm("phase 3", PrintGCDetails && Verbose, true, gclog_or_tty);
  trace("3");

  ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
  assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");

  PSYoungGen* young_gen = heap->young_gen();
  PSOldGen* old_gen = heap->old_gen();
  PSPermGen* perm_gen = heap->perm_gen();

  // General strong roots.
  Universe::oops_do(adjust_root_pointer_closure());
  ReferenceProcessor::oops_do(adjust_root_pointer_closure());
  JNIHandles::oops_do(adjust_root_pointer_closure());   // Global (strong) JNI handles
  Threads::oops_do(adjust_root_pointer_closure(), NULL);
  ObjectSynchronizer::oops_do(adjust_root_pointer_closure());
  FlatProfiler::oops_do(adjust_root_pointer_closure());
  Management::oops_do(adjust_root_pointer_closure());
  JvmtiExport::oops_do(adjust_root_pointer_closure());
  // SO_AllClasses
  SystemDictionary::oops_do(adjust_root_pointer_closure());
  vmSymbols::oops_do(adjust_root_pointer_closure());
  //CodeCache::scavenge_root_nmethods_oops_do(adjust_root_pointer_closure());

  // Now adjust pointers in remaining weak roots.  (All of which should
  // have been cleared if they pointed to non-surviving objects.)
  // Global (weak) JNI handles
  JNIHandles::weak_oops_do(&always_true, adjust_root_pointer_closure());

  CodeCache::oops_do(adjust_pointer_closure());
  SymbolTable::oops_do(adjust_root_pointer_closure());
  StringTable::oops_do(adjust_root_pointer_closure());
  ref_processor()->weak_oops_do(adjust_root_pointer_closure());
  PSScavenge::reference_processor()->weak_oops_do(adjust_root_pointer_closure());

  adjust_marks();

  young_gen->adjust_pointers();
  old_gen->adjust_pointers();
  perm_gen->adjust_pointers();
}
Exemplo n.º 2
0
void PSMarkSweep::mark_sweep_phase3() {
  // Adjust the pointers to reflect the new locations
  GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id());

  ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
  PSYoungGen* young_gen = heap->young_gen();
  PSOldGen* old_gen = heap->old_gen();

  // Need to clear claim bits before the tracing starts.
  ClassLoaderDataGraph::clear_claimed_marks();

  // General strong roots.
  Universe::oops_do(adjust_pointer_closure());
  JNIHandles::oops_do(adjust_pointer_closure());   // Global (strong) JNI handles
  CLDToOopClosure adjust_from_cld(adjust_pointer_closure());
  Threads::oops_do(adjust_pointer_closure(), &adjust_from_cld, NULL);
  ObjectSynchronizer::oops_do(adjust_pointer_closure());
  FlatProfiler::oops_do(adjust_pointer_closure());
  Management::oops_do(adjust_pointer_closure());
  JvmtiExport::oops_do(adjust_pointer_closure());
  SystemDictionary::oops_do(adjust_pointer_closure());
  ClassLoaderDataGraph::cld_do(adjust_cld_closure());

  // Now adjust pointers in remaining weak roots.  (All of which should
  // have been cleared if they pointed to non-surviving objects.)
  // Global (weak) JNI handles
  JNIHandles::weak_oops_do(&always_true, adjust_pointer_closure());

  CodeBlobToOopClosure adjust_from_blobs(adjust_pointer_closure(), CodeBlobToOopClosure::FixRelocations);
  CodeCache::blobs_do(&adjust_from_blobs);
  StringTable::oops_do(adjust_pointer_closure());
  ref_processor()->weak_oops_do(adjust_pointer_closure());
  PSScavenge::reference_processor()->weak_oops_do(adjust_pointer_closure());

  adjust_marks();

  young_gen->adjust_pointers();
  old_gen->adjust_pointers();
}