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