1 /*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "partial_mark_sweep.h"
18
19 #include "gc/heap.h"
20 #include "gc/space/space.h"
21 #include "partial_mark_sweep.h"
22 #include "thread-inl.h"
23
24 namespace art {
25 namespace gc {
26 namespace collector {
27
PartialMarkSweep(Heap * heap,bool is_concurrent,const std::string & name_prefix)28 PartialMarkSweep::PartialMarkSweep(Heap* heap, bool is_concurrent, const std::string& name_prefix)
29 : MarkSweep(heap, is_concurrent, name_prefix.empty() ? "partial " : name_prefix) {
30 cumulative_timings_.SetName(GetName());
31 }
32
BindBitmaps()33 void PartialMarkSweep::BindBitmaps() {
34 MarkSweep::BindBitmaps();
35
36 WriterMutexLock mu(Thread::Current(), *Locks::heap_bitmap_lock_);
37 // For partial GCs we need to bind the bitmap of the zygote space so that all objects in the
38 // zygote space are viewed as marked.
39 for (const auto& space : GetHeap()->GetContinuousSpaces()) {
40 if (space->GetGcRetentionPolicy() == space::kGcRetentionPolicyFullCollect) {
41 CHECK(space->IsZygoteSpace());
42 immune_spaces_.AddSpace(space);
43 }
44 }
45 }
46
47 } // namespace collector
48 } // namespace gc
49 } // namespace art
50