1/*
2 * Copyright (C) 2016 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 * Header file of an in-memory representation of DEX files.
17 */
18
19#ifndef ART_DEXLAYOUT_DEX_WRITER_H_
20#define ART_DEXLAYOUT_DEX_WRITER_H_
21
22#include "base/unix_file/fd_file.h"
23#include "dex_ir.h"
24#include "mem_map.h"
25#include "os.h"
26
27namespace art {
28
29class DexWriter {
30 public:
31  DexWriter(dex_ir::Header* header, MemMap* mem_map) : header_(header), mem_map_(mem_map) { }
32
33  static void Output(dex_ir::Header* header, MemMap* mem_map);
34
35 private:
36  void WriteMemMap();
37
38  size_t Write(const void* buffer, size_t length, size_t offset);
39  size_t WriteSleb128(uint32_t value, size_t offset);
40  size_t WriteUleb128(uint32_t value, size_t offset);
41  size_t WriteEncodedValue(dex_ir::EncodedValue* encoded_value, size_t offset);
42  size_t WriteEncodedValueHeader(int8_t value_type, size_t value_arg, size_t offset);
43  size_t WriteEncodedArray(dex_ir::EncodedValueVector* values, size_t offset);
44  size_t WriteEncodedAnnotation(dex_ir::EncodedAnnotation* annotation, size_t offset);
45  size_t WriteEncodedFields(dex_ir::FieldItemVector* fields, size_t offset);
46  size_t WriteEncodedMethods(dex_ir::MethodItemVector* methods, size_t offset);
47
48  void WriteStrings();
49  void WriteTypes();
50  void WriteTypeLists();
51  void WriteProtos();
52  void WriteFields();
53  void WriteMethods();
54  void WriteEncodedArrays();
55  void WriteAnnotations();
56  void WriteAnnotationSets();
57  void WriteAnnotationSetRefs();
58  void WriteAnnotationsDirectories();
59  void WriteDebugInfoItems();
60  void WriteCodeItems();
61  void WriteClasses();
62  void WriteCallSites();
63  void WriteMethodHandles();
64  void WriteMapItem();
65  void WriteHeader();
66
67  dex_ir::Header* const header_;
68  MemMap* const mem_map_;
69
70  DISALLOW_COPY_AND_ASSIGN(DexWriter);
71};
72
73}  // namespace art
74
75#endif  // ART_DEXLAYOUT_DEX_WRITER_H_
76