1/*
2 * Copyright (C) 2013 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#ifndef ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
18#define ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
19
20#include "base/memory_tool.h"
21#include "gc/allocator/rosalloc-inl.h"
22#include "gc/space/memory_tool_settings.h"
23#include "rosalloc_space.h"
24#include "thread.h"
25
26namespace art {
27namespace gc {
28namespace space {
29
30template<bool kMaybeIsRunningOnMemoryTool>
31inline size_t RosAllocSpace::AllocationSizeNonvirtual(mirror::Object* obj, size_t* usable_size) {
32  // obj is a valid object. Use its class in the header to get the size.
33  // Don't use verification since the object may be dead if we are sweeping.
34  size_t size = obj->SizeOf<kVerifyNone>();
35  bool add_redzones = false;
36  if (kMaybeIsRunningOnMemoryTool) {
37    add_redzones = RUNNING_ON_MEMORY_TOOL ? kMemoryToolAddsRedzones : 0;
38    if (add_redzones) {
39      size += 2 * kDefaultMemoryToolRedZoneBytes;
40    }
41  } else {
42    DCHECK_EQ(RUNNING_ON_MEMORY_TOOL, 0U);
43  }
44  size_t size_by_size = rosalloc_->UsableSize(size);
45  if (kIsDebugBuild) {
46    // On memory tool, the red zone has an impact...
47    const uint8_t* obj_ptr = reinterpret_cast<const uint8_t*>(obj);
48    size_t size_by_ptr = rosalloc_->UsableSize(
49        obj_ptr - (add_redzones ? kDefaultMemoryToolRedZoneBytes : 0));
50    if (size_by_size != size_by_ptr) {
51      LOG(INFO) << "Found a bad sized obj of size " << size
52                << " at " << std::hex << reinterpret_cast<intptr_t>(obj_ptr) << std::dec
53                << " size_by_size=" << size_by_size << " size_by_ptr=" << size_by_ptr;
54    }
55    DCHECK_EQ(size_by_size, size_by_ptr);
56  }
57  if (usable_size != nullptr) {
58    *usable_size = size_by_size;
59  }
60  return size_by_size;
61}
62
63template<bool kThreadSafe>
64inline mirror::Object* RosAllocSpace::AllocCommon(Thread* self, size_t num_bytes,
65                                                  size_t* bytes_allocated, size_t* usable_size,
66                                                  size_t* bytes_tl_bulk_allocated) {
67  size_t rosalloc_bytes_allocated = 0;
68  size_t rosalloc_usable_size = 0;
69  size_t rosalloc_bytes_tl_bulk_allocated = 0;
70  if (!kThreadSafe) {
71    Locks::mutator_lock_->AssertExclusiveHeld(self);
72  }
73  mirror::Object* result = reinterpret_cast<mirror::Object*>(
74      rosalloc_->Alloc<kThreadSafe>(self, num_bytes, &rosalloc_bytes_allocated,
75                                    &rosalloc_usable_size,
76                                    &rosalloc_bytes_tl_bulk_allocated));
77  if (LIKELY(result != nullptr)) {
78    if (kDebugSpaces) {
79      CHECK(Contains(result)) << "Allocation (" << reinterpret_cast<void*>(result)
80            << ") not in bounds of allocation space " << *this;
81    }
82    DCHECK(bytes_allocated != nullptr);
83    *bytes_allocated = rosalloc_bytes_allocated;
84    DCHECK_EQ(rosalloc_usable_size, rosalloc_->UsableSize(result));
85    if (usable_size != nullptr) {
86      *usable_size = rosalloc_usable_size;
87    }
88    DCHECK(bytes_tl_bulk_allocated != nullptr);
89    *bytes_tl_bulk_allocated = rosalloc_bytes_tl_bulk_allocated;
90  }
91  return result;
92}
93
94inline bool RosAllocSpace::CanAllocThreadLocal(Thread* self, size_t num_bytes) {
95  return rosalloc_->CanAllocFromThreadLocalRun(self, num_bytes);
96}
97
98inline mirror::Object* RosAllocSpace::AllocThreadLocal(Thread* self, size_t num_bytes,
99                                                       size_t* bytes_allocated) {
100  DCHECK(bytes_allocated != nullptr);
101  return reinterpret_cast<mirror::Object*>(
102      rosalloc_->AllocFromThreadLocalRun(self, num_bytes, bytes_allocated));
103}
104
105inline size_t RosAllocSpace::MaxBytesBulkAllocatedForNonvirtual(size_t num_bytes) {
106  return rosalloc_->MaxBytesBulkAllocatedFor(num_bytes);
107}
108
109}  // namespace space
110}  // namespace gc
111}  // namespace art
112
113#endif  // ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
114