1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Header file of the dexlayout utility.
*
* This is a tool to read dex files into an internal representation,
* reorganize the representation, and emit dex files with a better
* file layout.
*/
#ifndef ART_DEXLAYOUT_DEXLAYOUT_H_
#define ART_DEXLAYOUT_DEXLAYOUT_H_
#include <stdint.h>
#include <stdio.h>
#include <unordered_map>
#include "dex/compact_dex_level.h"
#include "dex_container.h"
#include "dex/dex_file_layout.h"
#include "dex_ir.h"
namespace art {
class DexFile;
class Instruction;
class ProfileCompilationInfo;
/* Supported output formats. */
enum OutputFormat {
kOutputPlain = 0, // default
kOutputXml, // XML-style
};
/* Command-line options. */
class Options {
public:
Options() = default;
bool dump_ = false;
bool build_dex_ir_ = false;
bool checksum_only_ = false;
bool disassemble_ = false;
bool exports_only_ = false;
bool ignore_bad_checksum_ = false;
bool output_to_container_ = false;
bool show_annotations_ = false;
bool show_file_headers_ = false;
bool show_section_headers_ = false;
bool show_section_statistics_ = false;
bool verbose_ = false;
bool verify_output_ = kIsDebugBuild;
bool visualize_pattern_ = false;
bool update_checksum_ = false;
CompactDexLevel compact_dex_level_ = CompactDexLevel::kCompactDexLevelNone;
bool dedupe_code_items_ = true;
OutputFormat output_format_ = kOutputPlain;
const char* output_dex_directory_ = nullptr;
const char* output_file_name_ = nullptr;
const char* profile_file_name_ = nullptr;
// Filter that removes classes that don't have a matching descriptor (during IR creation).
// This speeds up cases when the output only requires a single class.
std::set<std::string> class_filter_;
};
// Hotness info
class DexLayoutHotnessInfo {
public:
// Store layout information so that the offset calculation can specify the section sizes.
std::unordered_map<dex_ir::CodeItem*, LayoutType> code_item_layout_;
};
class DexLayout {
public:
class VectorOutputContainer {
public:
// Begin is not necessarily aligned (for now).
uint8_t* Begin() {
return &data_[0];
}
private:
std::vector<uint8_t> data_;
};
// Setting this to false disables class def layout entirely, which is stronger than strictly
// necessary to ensure the partial order w.r.t. class derivation. TODO: Re-enable (b/68317550).
static constexpr bool kChangeClassDefOrder = false;
DexLayout(Options& options,
ProfileCompilationInfo* info,
FILE* out_file,
dex_ir::Header* header)
: options_(options),
info_(info),
out_file_(out_file),
header_(header) { }
int ProcessFile(const char* file_name);
bool ProcessDexFile(const char* file_name,
const DexFile* dex_file,
size_t dex_file_index,
std::unique_ptr<DexContainer>* dex_container,
std::string* error_msg);
dex_ir::Header* GetHeader() const { return header_; }
void SetHeader(dex_ir::Header* header) { header_ = header; }
DexLayoutSections& GetSections() {
return dex_sections_;
}
const DexLayoutHotnessInfo& LayoutHotnessInfo() const {
return layout_hotness_info_;
}
const Options& GetOptions() const {
return options_;
}
private:
void DumpAnnotationSetItem(dex_ir::AnnotationSetItem* set_item);
void DumpBytecodes(uint32_t idx, const dex_ir::CodeItem* code, uint32_t code_offset);
void DumpCatches(const dex_ir::CodeItem* code);
void DumpClass(int idx, char** last_package);
void DumpClassAnnotations(int idx);
void DumpClassDef(int idx);
void DumpCode(uint32_t idx,
const dex_ir::CodeItem* code,
uint32_t code_offset,
const char* declaring_class_descriptor,
const char* method_name,
bool is_static,
const dex_ir::ProtoId* proto);
void DumpEncodedAnnotation(dex_ir::EncodedAnnotation* annotation);
void DumpEncodedValue(const dex_ir::EncodedValue* data);
void DumpFileHeader();
void DumpIField(uint32_t idx, uint32_t flags, uint32_t hiddenapi_flags, int i);
void DumpInstruction(const dex_ir::CodeItem* code,
uint32_t code_offset,
uint32_t insn_idx,
uint32_t insn_width,
const Instruction* dec_insn);
void DumpInterface(const dex_ir::TypeId* type_item, int i);
void DumpLocalInfo(const dex_ir::CodeItem* code);
void DumpMethod(uint32_t idx,
uint32_t flags,
uint32_t hiddenapi_flags,
const dex_ir::CodeItem* code,
int i);
void DumpPositionInfo(const dex_ir::CodeItem* code);
void DumpSField(uint32_t idx,
uint32_t flags,
uint32_t hiddenapi_flags,
int i,
dex_ir::EncodedValue* init);
void DumpDexFile();
void LayoutClassDefsAndClassData(const DexFile* dex_file);
void LayoutCodeItems(const DexFile* dex_file);
void LayoutStringData(const DexFile* dex_file);
// Creates a new layout for the dex file based on profile info.
// Currently reorders ClassDefs, ClassDataItems, and CodeItems.
void LayoutOutputFile(const DexFile* dex_file);
bool OutputDexFile(const DexFile* input_dex_file,
bool compute_offsets,
std::unique_ptr<DexContainer>* dex_container,
std::string* error_msg);
void DumpCFG(const DexFile* dex_file, int idx);
void DumpCFG(const DexFile* dex_file, uint32_t dex_method_idx, const DexFile::CodeItem* code);
Options& options_;
ProfileCompilationInfo* info_;
FILE* out_file_;
dex_ir::Header* header_;
DexLayoutSections dex_sections_;
// Layout hotness information is only calculated when dexlayout is enabled.
DexLayoutHotnessInfo layout_hotness_info_;
DISALLOW_COPY_AND_ASSIGN(DexLayout);
};
} // namespace art
#endif // ART_DEXLAYOUT_DEXLAYOUT_H_
|
