1 /*
2 * Copyright (C) 2011 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 "compiled_method.h"
18
19 #include "driver/compiled_method_storage.h"
20 #include "utils/swap_space.h"
21
22 namespace art {
23
CompiledCode(CompiledMethodStorage * storage,InstructionSet instruction_set,const ArrayRef<const uint8_t> & quick_code)24 CompiledCode::CompiledCode(CompiledMethodStorage* storage,
25 InstructionSet instruction_set,
26 const ArrayRef<const uint8_t>& quick_code)
27 : storage_(storage),
28 quick_code_(storage->DeduplicateCode(quick_code)),
29 packed_fields_(InstructionSetField::Encode(instruction_set)) {
30 }
31
~CompiledCode()32 CompiledCode::~CompiledCode() {
33 GetStorage()->ReleaseCode(quick_code_);
34 }
35
operator ==(const CompiledCode & rhs) const36 bool CompiledCode::operator==(const CompiledCode& rhs) const {
37 if (quick_code_ != nullptr) {
38 if (rhs.quick_code_ == nullptr) {
39 return false;
40 } else if (quick_code_->size() != rhs.quick_code_->size()) {
41 return false;
42 } else {
43 return std::equal(quick_code_->begin(), quick_code_->end(), rhs.quick_code_->begin());
44 }
45 }
46 return (rhs.quick_code_ == nullptr);
47 }
48
AlignCode(size_t offset) const49 size_t CompiledCode::AlignCode(size_t offset) const {
50 return AlignCode(offset, GetInstructionSet());
51 }
52
AlignCode(size_t offset,InstructionSet instruction_set)53 size_t CompiledCode::AlignCode(size_t offset, InstructionSet instruction_set) {
54 return RoundUp(offset, GetInstructionSetCodeAlignment(instruction_set));
55 }
56
GetEntryPointAdjustment() const57 size_t CompiledCode::GetEntryPointAdjustment() const {
58 return GetInstructionSetEntryPointAdjustment(GetInstructionSet());
59 }
60
CompiledMethod(CompiledMethodStorage * storage,InstructionSet instruction_set,const ArrayRef<const uint8_t> & quick_code,const ArrayRef<const uint8_t> & vmap_table,const ArrayRef<const uint8_t> & cfi_info,const ArrayRef<const linker::LinkerPatch> & patches)61 CompiledMethod::CompiledMethod(CompiledMethodStorage* storage,
62 InstructionSet instruction_set,
63 const ArrayRef<const uint8_t>& quick_code,
64 const ArrayRef<const uint8_t>& vmap_table,
65 const ArrayRef<const uint8_t>& cfi_info,
66 const ArrayRef<const linker::LinkerPatch>& patches)
67 : CompiledCode(storage, instruction_set, quick_code),
68 vmap_table_(storage->DeduplicateVMapTable(vmap_table)),
69 cfi_info_(storage->DeduplicateCFIInfo(cfi_info)),
70 patches_(storage->DeduplicateLinkerPatches(patches)) {
71 }
72
SwapAllocCompiledMethod(CompiledMethodStorage * storage,InstructionSet instruction_set,const ArrayRef<const uint8_t> & quick_code,const ArrayRef<const uint8_t> & vmap_table,const ArrayRef<const uint8_t> & cfi_info,const ArrayRef<const linker::LinkerPatch> & patches)73 CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(
74 CompiledMethodStorage* storage,
75 InstructionSet instruction_set,
76 const ArrayRef<const uint8_t>& quick_code,
77 const ArrayRef<const uint8_t>& vmap_table,
78 const ArrayRef<const uint8_t>& cfi_info,
79 const ArrayRef<const linker::LinkerPatch>& patches) {
80 SwapAllocator<CompiledMethod> alloc(storage->GetSwapSpaceAllocator());
81 CompiledMethod* ret = alloc.allocate(1);
82 alloc.construct(ret,
83 storage,
84 instruction_set,
85 quick_code,
86 vmap_table,
87 cfi_info, patches);
88 return ret;
89 }
90
ReleaseSwapAllocatedCompiledMethod(CompiledMethodStorage * storage,CompiledMethod * m)91 void CompiledMethod::ReleaseSwapAllocatedCompiledMethod(CompiledMethodStorage* storage,
92 CompiledMethod* m) {
93 SwapAllocator<CompiledMethod> alloc(storage->GetSwapSpaceAllocator());
94 alloc.destroy(m);
95 alloc.deallocate(m, 1);
96 }
97
~CompiledMethod()98 CompiledMethod::~CompiledMethod() {
99 CompiledMethodStorage* storage = GetStorage();
100 storage->ReleaseLinkerPatches(patches_);
101 storage->ReleaseCFIInfo(cfi_info_);
102 storage->ReleaseVMapTable(vmap_table_);
103 }
104
105 } // namespace art
106