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
26 namespace art {
27 namespace gc {
28 namespace space {
29
30 template<bool kMaybeIsRunningOnMemoryTool>
AllocationSizeNonvirtual(mirror::Object * obj,size_t * usable_size)31 inline 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
63 template<bool kThreadSafe>
AllocCommon(Thread * self,size_t num_bytes,size_t * bytes_allocated,size_t * usable_size,size_t * bytes_tl_bulk_allocated)64 inline 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
CanAllocThreadLocal(Thread * self,size_t num_bytes)94 inline bool RosAllocSpace::CanAllocThreadLocal(Thread* self, size_t num_bytes) {
95 return rosalloc_->CanAllocFromThreadLocalRun(self, num_bytes);
96 }
97
AllocThreadLocal(Thread * self,size_t num_bytes,size_t * bytes_allocated)98 inline 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
MaxBytesBulkAllocatedForNonvirtual(size_t num_bytes)105 inline 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