oatdump.cc revision 6065402316da2b51eed5fc34cffbd991766bd408 
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 <stdio.h>
18#include <stdlib.h>
19
20#include <fstream>
21#include <iostream>
22#include <map>
23#include <set>
24#include <string>
25#include <unordered_map>
26#include <vector>
27
28#include "arch/instruction_set_features.h"
29#include "art_field-inl.h"
30#include "art_method-inl.h"
31#include "base/stl_util.h"
32#include "base/unix_file/fd_file.h"
33#include "class_linker.h"
34#include "class_linker-inl.h"
35#include "dex_file-inl.h"
36#include "dex_instruction.h"
37#include "disassembler.h"
38#include "elf_builder.h"
39#include "gc_map.h"
40#include "gc/space/image_space.h"
41#include "gc/space/large_object_space.h"
42#include "gc/space/space-inl.h"
43#include "image-inl.h"
44#include "indenter.h"
45#include "linker/buffered_output_stream.h"
46#include "linker/file_output_stream.h"
47#include "mapping_table.h"
48#include "mirror/array-inl.h"
49#include "mirror/class-inl.h"
50#include "mirror/dex_cache-inl.h"
51#include "mirror/object-inl.h"
52#include "mirror/object_array-inl.h"
53#include "oat.h"
54#include "oat_file-inl.h"
55#include "oat_file_manager.h"
56#include "os.h"
57#include "safe_map.h"
58#include "scoped_thread_state_change.h"
59#include "stack_map.h"
60#include "ScopedLocalRef.h"
61#include "thread_list.h"
62#include "verifier/dex_gc_map.h"
63#include "verifier/method_verifier.h"
64#include "vmap_table.h"
65#include "well_known_classes.h"
66
67#include <sys/stat.h>
68#include "cmdline.h"
69
70namespace art {
71
72const char* image_methods_descriptions_[] = {
73  "kResolutionMethod",
74  "kImtConflictMethod",
75  "kImtUnimplementedMethod",
76  "kCalleeSaveMethod",
77  "kRefsOnlySaveMethod",
78  "kRefsAndArgsSaveMethod",
79};
80
81const char* image_roots_descriptions_[] = {
82  "kDexCaches",
83  "kClassRoots",
84};
85
86// Map is so that we don't allocate multiple dex files for the same OatDexFile.
87static std::map<const OatFile::OatDexFile*,
88                std::unique_ptr<const DexFile>> opened_dex_files;
89
90const DexFile* OpenDexFile(const OatFile::OatDexFile* oat_dex_file, std::string* error_msg) {
91  DCHECK(oat_dex_file != nullptr);
92  auto it = opened_dex_files.find(oat_dex_file);
93  if (it != opened_dex_files.end()) {
94    return it->second.get();
95  }
96  const DexFile* ret = oat_dex_file->OpenDexFile(error_msg).release();
97  opened_dex_files.emplace(oat_dex_file, std::unique_ptr<const DexFile>(ret));
98  return ret;
99}
100
101class OatSymbolizer FINAL {
102 public:
103  OatSymbolizer(const OatFile* oat_file, const std::string& output_name) :
104      oat_file_(oat_file), builder_(nullptr),
105      output_name_(output_name.empty() ? "symbolized.oat" : output_name) {
106  }
107
108  typedef void (OatSymbolizer::*Callback)(const DexFile::ClassDef&,
109                                          uint32_t,
110                                          const OatFile::OatMethod&,
111                                          const DexFile&,
112                                          uint32_t,
113                                          const DexFile::CodeItem*,
114                                          uint32_t);
115
116  bool Symbolize() {
117    const InstructionSet isa = oat_file_->GetOatHeader().GetInstructionSet();
118
119    File* elf_file = OS::CreateEmptyFile(output_name_.c_str());
120    std::unique_ptr<BufferedOutputStream> output_stream(
121        MakeUnique<BufferedOutputStream>(MakeUnique<FileOutputStream>(elf_file)));
122    builder_.reset(new ElfBuilder<ElfTypes32>(isa, output_stream.get()));
123
124    builder_->Start();
125
126    auto* rodata = builder_->GetRoData();
127    auto* text = builder_->GetText();
128    auto* bss = builder_->GetBss();
129    auto* strtab = builder_->GetStrTab();
130    auto* symtab = builder_->GetSymTab();
131
132    rodata->Start();
133    const uint8_t* rodata_begin = oat_file_->Begin();
134    const size_t rodata_size = oat_file_->GetOatHeader().GetExecutableOffset();
135    rodata->WriteFully(rodata_begin, rodata_size);
136    rodata->End();
137
138    text->Start();
139    const uint8_t* text_begin = oat_file_->Begin() + rodata_size;
140    const size_t text_size = oat_file_->End() - text_begin;
141    text->WriteFully(text_begin, text_size);
142    text->End();
143
144    if (oat_file_->BssSize() != 0) {
145      bss->WriteNoBitsSection(oat_file_->BssSize());
146    }
147
148    builder_->PrepareDynamicSection(
149        elf_file->GetPath(), rodata_size, text_size, oat_file_->BssSize());
150    builder_->WriteDynamicSection();
151
152    Walk(&art::OatSymbolizer::RegisterForDedup);
153
154    NormalizeState();
155
156    strtab->Start();
157    strtab->Write("");  // strtab should start with empty string.
158    AddTrampolineSymbols();
159    Walk(&art::OatSymbolizer::AddSymbol);
160    strtab->End();
161
162    symtab->Start();
163    symtab->Write();
164    symtab->End();
165
166    builder_->End();
167
168    return builder_->Good();
169  }
170
171  void AddTrampolineSymbol(const char* name, uint32_t code_offset) {
172    if (code_offset != 0) {
173      uint32_t name_offset = builder_->GetStrTab()->Write(name);
174      uint64_t symbol_value = code_offset - oat_file_->GetOatHeader().GetExecutableOffset();
175      // Specifying 0 as the symbol size means that the symbol lasts until the next symbol or until
176      // the end of the section in case of the last symbol.
177      builder_->GetSymTab()->Add(name_offset, builder_->GetText(), symbol_value,
178          /* is_relative */ true, /* size */ 0, STB_GLOBAL, STT_FUNC);
179    }
180  }
181
182  void AddTrampolineSymbols() {
183    const OatHeader& oat_header = oat_file_->GetOatHeader();
184    AddTrampolineSymbol("interpreterToInterpreterBridge",
185                        oat_header.GetInterpreterToInterpreterBridgeOffset());
186    AddTrampolineSymbol("interpreterToCompiledCodeBridge",
187                        oat_header.GetInterpreterToCompiledCodeBridgeOffset());
188    AddTrampolineSymbol("jniDlsymLookup",
189                        oat_header.GetJniDlsymLookupOffset());
190    AddTrampolineSymbol("quickGenericJniTrampoline",
191                        oat_header.GetQuickGenericJniTrampolineOffset());
192    AddTrampolineSymbol("quickImtConflictTrampoline",
193                        oat_header.GetQuickImtConflictTrampolineOffset());
194    AddTrampolineSymbol("quickResolutionTrampoline",
195                        oat_header.GetQuickResolutionTrampolineOffset());
196    AddTrampolineSymbol("quickToInterpreterBridge",
197                        oat_header.GetQuickToInterpreterBridgeOffset());
198  }
199
200  void Walk(Callback callback) {
201    std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file_->GetOatDexFiles();
202    for (size_t i = 0; i < oat_dex_files.size(); i++) {
203      const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i];
204      CHECK(oat_dex_file != nullptr);
205      WalkOatDexFile(oat_dex_file, callback);
206    }
207  }
208
209  void WalkOatDexFile(const OatFile::OatDexFile* oat_dex_file, Callback callback) {
210    std::string error_msg;
211    const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
212    if (dex_file == nullptr) {
213      return;
214    }
215    for (size_t class_def_index = 0;
216        class_def_index < dex_file->NumClassDefs();
217        class_def_index++) {
218      const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index);
219      const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
220      OatClassType type = oat_class.GetType();
221      switch (type) {
222        case kOatClassAllCompiled:
223        case kOatClassSomeCompiled:
224          WalkOatClass(oat_class, *dex_file, class_def, callback);
225          break;
226
227        case kOatClassNoneCompiled:
228        case kOatClassMax:
229          // Ignore.
230          break;
231      }
232    }
233  }
234
235  void WalkOatClass(const OatFile::OatClass& oat_class, const DexFile& dex_file,
236                    const DexFile::ClassDef& class_def, Callback callback) {
237    const uint8_t* class_data = dex_file.GetClassData(class_def);
238    if (class_data == nullptr) {  // empty class such as a marker interface?
239      return;
240    }
241    // Note: even if this is an interface or a native class, we still have to walk it, as there
242    //       might be a static initializer.
243    ClassDataItemIterator it(dex_file, class_data);
244    SkipAllFields(&it);
245    uint32_t class_method_idx = 0;
246    while (it.HasNextDirectMethod()) {
247      const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx);
248      WalkOatMethod(class_def, class_method_idx, oat_method, dex_file, it.GetMemberIndex(),
249                    it.GetMethodCodeItem(), it.GetMethodAccessFlags(), callback);
250      class_method_idx++;
251      it.Next();
252    }
253    while (it.HasNextVirtualMethod()) {
254      const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx);
255      WalkOatMethod(class_def, class_method_idx, oat_method, dex_file, it.GetMemberIndex(),
256                    it.GetMethodCodeItem(), it.GetMethodAccessFlags(), callback);
257      class_method_idx++;
258      it.Next();
259    }
260    DCHECK(!it.HasNext());
261  }
262
263  void WalkOatMethod(const DexFile::ClassDef& class_def, uint32_t class_method_index,
264                     const OatFile::OatMethod& oat_method, const DexFile& dex_file,
265                     uint32_t dex_method_idx, const DexFile::CodeItem* code_item,
266                     uint32_t method_access_flags, Callback callback) {
267    if ((method_access_flags & kAccAbstract) != 0) {
268      // Abstract method, no code.
269      return;
270    }
271    if (oat_method.GetCodeOffset() == 0) {
272      // No code.
273      return;
274    }
275
276    (this->*callback)(class_def, class_method_index, oat_method, dex_file, dex_method_idx, code_item,
277                      method_access_flags);
278  }
279
280  void RegisterForDedup(const DexFile::ClassDef& class_def ATTRIBUTE_UNUSED,
281                        uint32_t class_method_index ATTRIBUTE_UNUSED,
282                        const OatFile::OatMethod& oat_method,
283                        const DexFile& dex_file ATTRIBUTE_UNUSED,
284                        uint32_t dex_method_idx ATTRIBUTE_UNUSED,
285                        const DexFile::CodeItem* code_item ATTRIBUTE_UNUSED,
286                        uint32_t method_access_flags ATTRIBUTE_UNUSED) {
287    state_[oat_method.GetCodeOffset()]++;
288  }
289
290  void NormalizeState() {
291    for (auto& x : state_) {
292      if (x.second == 1) {
293        state_[x.first] = 0;
294      }
295    }
296  }
297
298  enum class DedupState {  // private
299    kNotDeduplicated,
300    kDeduplicatedFirst,
301    kDeduplicatedOther
302  };
303  DedupState IsDuplicated(uint32_t offset) {
304    if (state_[offset] == 0) {
305      return DedupState::kNotDeduplicated;
306    }
307    if (state_[offset] == 1) {
308      return DedupState::kDeduplicatedOther;
309    }
310    state_[offset] = 1;
311    return DedupState::kDeduplicatedFirst;
312  }
313
314  void AddSymbol(const DexFile::ClassDef& class_def ATTRIBUTE_UNUSED,
315                 uint32_t class_method_index ATTRIBUTE_UNUSED,
316                 const OatFile::OatMethod& oat_method,
317                 const DexFile& dex_file,
318                 uint32_t dex_method_idx,
319                 const DexFile::CodeItem* code_item ATTRIBUTE_UNUSED,
320                 uint32_t method_access_flags ATTRIBUTE_UNUSED) {
321    DedupState dedup = IsDuplicated(oat_method.GetCodeOffset());
322    if (dedup != DedupState::kDeduplicatedOther) {
323      std::string pretty_name = PrettyMethod(dex_method_idx, dex_file, true);
324
325      if (dedup == DedupState::kDeduplicatedFirst) {
326        pretty_name = "[Dedup]" + pretty_name;
327      }
328
329      int name_offset = builder_->GetStrTab()->Write(pretty_name);
330      builder_->GetSymTab()->Add(name_offset, builder_->GetText(),
331          oat_method.GetCodeOffset() - oat_file_->GetOatHeader().GetExecutableOffset(),
332          true, oat_method.GetQuickCodeSize(), STB_GLOBAL, STT_FUNC);
333    }
334  }
335
336 private:
337  static void SkipAllFields(ClassDataItemIterator* it) {
338    while (it->HasNextStaticField()) {
339      it->Next();
340    }
341    while (it->HasNextInstanceField()) {
342      it->Next();
343    }
344  }
345
346  const OatFile* oat_file_;
347  std::unique_ptr<ElfBuilder<ElfTypes32> > builder_;
348  std::unordered_map<uint32_t, uint32_t> state_;
349  const std::string output_name_;
350};
351
352class OatDumperOptions {
353 public:
354  OatDumperOptions(bool dump_raw_mapping_table,
355                   bool dump_raw_gc_map,
356                   bool dump_vmap,
357                   bool dump_code_info_stack_maps,
358                   bool disassemble_code,
359                   bool absolute_addresses,
360                   const char* class_filter,
361                   const char* method_filter,
362                   bool list_classes,
363                   bool list_methods,
364                   const char* export_dex_location,
365                   uint32_t addr2instr)
366    : dump_raw_mapping_table_(dump_raw_mapping_table),
367      dump_raw_gc_map_(dump_raw_gc_map),
368      dump_vmap_(dump_vmap),
369      dump_code_info_stack_maps_(dump_code_info_stack_maps),
370      disassemble_code_(disassemble_code),
371      absolute_addresses_(absolute_addresses),
372      class_filter_(class_filter),
373      method_filter_(method_filter),
374      list_classes_(list_classes),
375      list_methods_(list_methods),
376      export_dex_location_(export_dex_location),
377      addr2instr_(addr2instr),
378      class_loader_(nullptr) {}
379
380  const bool dump_raw_mapping_table_;
381  const bool dump_raw_gc_map_;
382  const bool dump_vmap_;
383  const bool dump_code_info_stack_maps_;
384  const bool disassemble_code_;
385  const bool absolute_addresses_;
386  const char* const class_filter_;
387  const char* const method_filter_;
388  const bool list_classes_;
389  const bool list_methods_;
390  const char* const export_dex_location_;
391  uint32_t addr2instr_;
392  Handle<mirror::ClassLoader>* class_loader_;
393};
394
395class OatDumper {
396 public:
397  OatDumper(const OatFile& oat_file, const OatDumperOptions& options)
398    : oat_file_(oat_file),
399      oat_dex_files_(oat_file.GetOatDexFiles()),
400      options_(options),
401      resolved_addr2instr_(0),
402      instruction_set_(oat_file_.GetOatHeader().GetInstructionSet()),
403      disassembler_(Disassembler::Create(instruction_set_,
404                                         new DisassemblerOptions(options_.absolute_addresses_,
405                                                                 oat_file.Begin(),
406                                                                 true /* can_read_literals_ */))) {
407    CHECK(options_.class_loader_ != nullptr);
408    CHECK(options_.class_filter_ != nullptr);
409    CHECK(options_.method_filter_ != nullptr);
410    AddAllOffsets();
411  }
412
413  ~OatDumper() {
414    delete disassembler_;
415  }
416
417  InstructionSet GetInstructionSet() {
418    return instruction_set_;
419  }
420
421  bool Dump(std::ostream& os) {
422    bool success = true;
423    const OatHeader& oat_header = oat_file_.GetOatHeader();
424
425    os << "MAGIC:\n";
426    os << oat_header.GetMagic() << "\n\n";
427
428    os << "LOCATION:\n";
429    os << oat_file_.GetLocation() << "\n\n";
430
431    os << "CHECKSUM:\n";
432    os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum());
433
434    os << "INSTRUCTION SET:\n";
435    os << oat_header.GetInstructionSet() << "\n\n";
436
437    {
438      std::unique_ptr<const InstructionSetFeatures> features(
439          InstructionSetFeatures::FromBitmap(oat_header.GetInstructionSet(),
440                                             oat_header.GetInstructionSetFeaturesBitmap()));
441      os << "INSTRUCTION SET FEATURES:\n";
442      os << features->GetFeatureString() << "\n\n";
443    }
444
445    os << "DEX FILE COUNT:\n";
446    os << oat_header.GetDexFileCount() << "\n\n";
447
448#define DUMP_OAT_HEADER_OFFSET(label, offset) \
449    os << label " OFFSET:\n"; \
450    os << StringPrintf("0x%08x", oat_header.offset()); \
451    if (oat_header.offset() != 0 && options_.absolute_addresses_) { \
452      os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \
453    } \
454    os << StringPrintf("\n\n");
455
456    DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset);
457    DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE",
458                           GetInterpreterToInterpreterBridgeOffset);
459    DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE",
460                           GetInterpreterToCompiledCodeBridgeOffset);
461    DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP",
462                           GetJniDlsymLookupOffset);
463    DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE",
464                           GetQuickGenericJniTrampolineOffset);
465    DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE",
466                           GetQuickImtConflictTrampolineOffset);
467    DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE",
468                           GetQuickResolutionTrampolineOffset);
469    DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE",
470                           GetQuickToInterpreterBridgeOffset);
471#undef DUMP_OAT_HEADER_OFFSET
472
473    os << "IMAGE PATCH DELTA:\n";
474    os << StringPrintf("%d (0x%08x)\n\n",
475                       oat_header.GetImagePatchDelta(),
476                       oat_header.GetImagePatchDelta());
477
478    os << "IMAGE FILE LOCATION OAT CHECKSUM:\n";
479    os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum());
480
481    os << "IMAGE FILE LOCATION OAT BEGIN:\n";
482    os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin());
483
484    // Print the key-value store.
485    {
486      os << "KEY VALUE STORE:\n";
487      size_t index = 0;
488      const char* key;
489      const char* value;
490      while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) {
491        os << key << " = " << value << "\n";
492        index++;
493      }
494      os << "\n";
495    }
496
497    if (options_.absolute_addresses_) {
498      os << "BEGIN:\n";
499      os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n";
500
501      os << "END:\n";
502      os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n";
503    }
504
505    os << "SIZE:\n";
506    os << oat_file_.Size() << "\n\n";
507
508    os << std::flush;
509
510    // If set, adjust relative address to be searched
511    if (options_.addr2instr_ != 0) {
512      resolved_addr2instr_ = options_.addr2instr_ + oat_header.GetExecutableOffset();
513      os << "SEARCH ADDRESS (executable offset + input):\n";
514      os << StringPrintf("0x%08x\n\n", resolved_addr2instr_);
515    }
516
517    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
518      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
519      CHECK(oat_dex_file != nullptr);
520
521      // If file export selected skip file analysis
522      if (options_.export_dex_location_) {
523        if (!ExportDexFile(os, *oat_dex_file)) {
524          success = false;
525        }
526      } else {
527        if (!DumpOatDexFile(os, *oat_dex_file)) {
528          success = false;
529        }
530      }
531    }
532    os << std::flush;
533    return success;
534  }
535
536  size_t ComputeSize(const void* oat_data) {
537    if (reinterpret_cast<const uint8_t*>(oat_data) < oat_file_.Begin() ||
538        reinterpret_cast<const uint8_t*>(oat_data) > oat_file_.End()) {
539      return 0;  // Address not in oat file
540    }
541    uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) -
542                             reinterpret_cast<uintptr_t>(oat_file_.Begin());
543    auto it = offsets_.upper_bound(begin_offset);
544    CHECK(it != offsets_.end());
545    uintptr_t end_offset = *it;
546    return end_offset - begin_offset;
547  }
548
549  InstructionSet GetOatInstructionSet() {
550    return oat_file_.GetOatHeader().GetInstructionSet();
551  }
552
553  const void* GetQuickOatCode(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) {
554    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
555      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
556      CHECK(oat_dex_file != nullptr);
557      std::string error_msg;
558      const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
559      if (dex_file == nullptr) {
560        LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
561            << "': " << error_msg;
562      } else {
563        const char* descriptor = m->GetDeclaringClassDescriptor();
564        const DexFile::ClassDef* class_def =
565            dex_file->FindClassDef(descriptor, ComputeModifiedUtf8Hash(descriptor));
566        if (class_def != nullptr) {
567          uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def);
568          const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
569          size_t method_index = m->GetMethodIndex();
570          return oat_class.GetOatMethod(method_index).GetQuickCode();
571        }
572      }
573    }
574    return nullptr;
575  }
576
577 private:
578  void AddAllOffsets() {
579    // We don't know the length of the code for each method, but we need to know where to stop
580    // when disassembling. What we do know is that a region of code will be followed by some other
581    // region, so if we keep a sorted sequence of the start of each region, we can infer the length
582    // of a piece of code by using upper_bound to find the start of the next region.
583    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
584      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
585      CHECK(oat_dex_file != nullptr);
586      std::string error_msg;
587      const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg);
588      if (dex_file == nullptr) {
589        LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
590            << "': " << error_msg;
591        continue;
592      }
593      offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader()));
594      for (size_t class_def_index = 0;
595           class_def_index < dex_file->NumClassDefs();
596           class_def_index++) {
597        const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index);
598        const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
599        const uint8_t* class_data = dex_file->GetClassData(class_def);
600        if (class_data != nullptr) {
601          ClassDataItemIterator it(*dex_file, class_data);
602          SkipAllFields(it);
603          uint32_t class_method_index = 0;
604          while (it.HasNextDirectMethod()) {
605            AddOffsets(oat_class.GetOatMethod(class_method_index++));
606            it.Next();
607          }
608          while (it.HasNextVirtualMethod()) {
609            AddOffsets(oat_class.GetOatMethod(class_method_index++));
610            it.Next();
611          }
612        }
613      }
614    }
615
616    // If the last thing in the file is code for a method, there won't be an offset for the "next"
617    // thing. Instead of having a special case in the upper_bound code, let's just add an entry
618    // for the end of the file.
619    offsets_.insert(oat_file_.Size());
620  }
621
622  static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) {
623    return maybe_thumb_offset & ~0x1;  // TODO: Make this Thumb2 specific.
624  }
625
626  void AddOffsets(const OatFile::OatMethod& oat_method) {
627    uint32_t code_offset = oat_method.GetCodeOffset();
628    if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) {
629      code_offset &= ~0x1;
630    }
631    offsets_.insert(code_offset);
632    offsets_.insert(oat_method.GetMappingTableOffset());
633    offsets_.insert(oat_method.GetVmapTableOffset());
634    offsets_.insert(oat_method.GetGcMapOffset());
635  }
636
637  bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) {
638    bool success = true;
639    bool stop_analysis = false;
640    os << "OatDexFile:\n";
641    os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str());
642    os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum());
643
644    // Create the verifier early.
645
646    std::string error_msg;
647    const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg);
648    if (dex_file == nullptr) {
649      os << "NOT FOUND: " << error_msg << "\n\n";
650      os << std::flush;
651      return false;
652    }
653
654    VariableIndentationOutputStream vios(&os);
655    ScopedIndentation indent1(&vios);
656    for (size_t class_def_index = 0;
657         class_def_index < dex_file->NumClassDefs();
658         class_def_index++) {
659      const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index);
660      const char* descriptor = dex_file->GetClassDescriptor(class_def);
661
662      // TODO: Support regex
663      if (DescriptorToDot(descriptor).find(options_.class_filter_) == std::string::npos) {
664        continue;
665      }
666
667      uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index);
668      const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index);
669      os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)",
670                         class_def_index, descriptor, oat_class_offset, class_def.class_idx_)
671         << " (" << oat_class.GetStatus() << ")"
672         << " (" << oat_class.GetType() << ")\n";
673      // TODO: include bitmap here if type is kOatClassSomeCompiled?
674      if (options_.list_classes_) continue;
675      if (!DumpOatClass(&vios, oat_class, *dex_file, class_def, &stop_analysis)) {
676        success = false;
677      }
678      if (stop_analysis) {
679        os << std::flush;
680        return success;
681      }
682    }
683
684    os << std::flush;
685    return success;
686  }
687
688  bool ExportDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) {
689    std::string error_msg;
690    std::string dex_file_location = oat_dex_file.GetDexFileLocation();
691
692    const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg);
693    if (dex_file == nullptr) {
694      os << "Failed to open dex file '" << dex_file_location << "': " << error_msg;
695      return false;
696    }
697    size_t fsize = oat_dex_file.FileSize();
698
699    // Some quick checks just in case
700    if (fsize == 0 || fsize < sizeof(DexFile::Header)) {
701      os << "Invalid dex file\n";
702      return false;
703    }
704
705    // Verify output directory exists
706    if (!OS::DirectoryExists(options_.export_dex_location_)) {
707      // TODO: Extend OS::DirectoryExists if symlink support is required
708      os << options_.export_dex_location_ << " output directory not found or symlink\n";
709      return false;
710    }
711
712    // Beautify path names
713    if (dex_file_location.size() > PATH_MAX || dex_file_location.size() <= 0) {
714      return false;
715    }
716
717    std::string dex_orig_name;
718    size_t dex_orig_pos = dex_file_location.rfind('/');
719    if (dex_orig_pos == std::string::npos)
720      dex_orig_name = dex_file_location;
721    else
722      dex_orig_name = dex_file_location.substr(dex_orig_pos + 1);
723
724    // A more elegant approach to efficiently name user installed apps is welcome
725    if (dex_orig_name.size() == 8 && !dex_orig_name.compare("base.apk")) {
726      dex_file_location.erase(dex_orig_pos, strlen("base.apk") + 1);
727      size_t apk_orig_pos = dex_file_location.rfind('/');
728      if (apk_orig_pos != std::string::npos) {
729        dex_orig_name = dex_file_location.substr(++apk_orig_pos);
730      }
731    }
732
733    std::string out_dex_path(options_.export_dex_location_);
734    if (out_dex_path.back() != '/') {
735      out_dex_path.append("/");
736    }
737    out_dex_path.append(dex_orig_name);
738    out_dex_path.append("_export.dex");
739    if (out_dex_path.length() > PATH_MAX) {
740      return false;
741    }
742
743    std::unique_ptr<File> file(OS::CreateEmptyFile(out_dex_path.c_str()));
744    if (file.get() == nullptr) {
745      os << "Failed to open output dex file " << out_dex_path;
746      return false;
747    }
748
749    if (!file->WriteFully(dex_file->Begin(), fsize)) {
750      os << "Failed to write dex file";
751      file->Erase();
752      return false;
753    }
754
755    if (file->FlushCloseOrErase() != 0) {
756      os << "Flush and close failed";
757      return false;
758    }
759
760    os << StringPrintf("Dex file exported at %s (%zd bytes)\n", out_dex_path.c_str(), fsize);
761    os << std::flush;
762
763    return true;
764  }
765
766  static void SkipAllFields(ClassDataItemIterator& it) {
767    while (it.HasNextStaticField()) {
768      it.Next();
769    }
770    while (it.HasNextInstanceField()) {
771      it.Next();
772    }
773  }
774
775  bool DumpOatClass(VariableIndentationOutputStream* vios,
776                    const OatFile::OatClass& oat_class, const DexFile& dex_file,
777                    const DexFile::ClassDef& class_def, bool* stop_analysis) {
778    bool success = true;
779    bool addr_found = false;
780    const uint8_t* class_data = dex_file.GetClassData(class_def);
781    if (class_data == nullptr) {  // empty class such as a marker interface?
782      vios->Stream() << std::flush;
783      return success;
784    }
785    ClassDataItemIterator it(dex_file, class_data);
786    SkipAllFields(it);
787    uint32_t class_method_index = 0;
788    while (it.HasNextDirectMethod()) {
789      if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file,
790                         it.GetMemberIndex(), it.GetMethodCodeItem(),
791                         it.GetRawMemberAccessFlags(), &addr_found)) {
792        success = false;
793      }
794      if (addr_found) {
795        *stop_analysis = true;
796        return success;
797      }
798      class_method_index++;
799      it.Next();
800    }
801    while (it.HasNextVirtualMethod()) {
802      if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file,
803                         it.GetMemberIndex(), it.GetMethodCodeItem(),
804                         it.GetRawMemberAccessFlags(), &addr_found)) {
805        success = false;
806      }
807      if (addr_found) {
808        *stop_analysis = true;
809        return success;
810      }
811      class_method_index++;
812      it.Next();
813    }
814    DCHECK(!it.HasNext());
815    vios->Stream() << std::flush;
816    return success;
817  }
818
819  static constexpr uint32_t kPrologueBytes = 16;
820
821  // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes.
822  static constexpr uint32_t kMaxCodeSize = 100 * 1000;
823
824  bool DumpOatMethod(VariableIndentationOutputStream* vios,
825                     const DexFile::ClassDef& class_def,
826                     uint32_t class_method_index,
827                     const OatFile::OatClass& oat_class, const DexFile& dex_file,
828                     uint32_t dex_method_idx, const DexFile::CodeItem* code_item,
829                     uint32_t method_access_flags, bool* addr_found) {
830    bool success = true;
831
832    // TODO: Support regex
833    std::string method_name = dex_file.GetMethodName(dex_file.GetMethodId(dex_method_idx));
834    if (method_name.find(options_.method_filter_) == std::string::npos) {
835      return success;
836    }
837
838    std::string pretty_method = PrettyMethod(dex_method_idx, dex_file, true);
839    vios->Stream() << StringPrintf("%d: %s (dex_method_idx=%d)\n",
840                                   class_method_index, pretty_method.c_str(),
841                                   dex_method_idx);
842    if (options_.list_methods_) return success;
843
844    uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index);
845    const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index);
846    const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index);
847    uint32_t code_offset = oat_method.GetCodeOffset();
848    uint32_t code_size = oat_method.GetQuickCodeSize();
849    if (resolved_addr2instr_ != 0) {
850      if (resolved_addr2instr_ > code_offset + code_size) {
851        return success;
852      } else {
853        *addr_found = true;  // stop analyzing file at next iteration
854      }
855    }
856
857    // Everything below is indented at least once.
858    ScopedIndentation indent1(vios);
859
860    {
861      vios->Stream() << "DEX CODE:\n";
862      ScopedIndentation indent2(vios);
863      DumpDexCode(vios->Stream(), dex_file, code_item);
864    }
865
866    std::unique_ptr<StackHandleScope<1>> hs;
867    std::unique_ptr<verifier::MethodVerifier> verifier;
868    if (Runtime::Current() != nullptr) {
869      // We need to have the handle scope stay live until after the verifier since the verifier has
870      // a handle to the dex cache from hs.
871      hs.reset(new StackHandleScope<1>(Thread::Current()));
872      vios->Stream() << "VERIFIER TYPE ANALYSIS:\n";
873      ScopedIndentation indent2(vios);
874      verifier.reset(DumpVerifier(vios, hs.get(),
875                                  dex_method_idx, &dex_file, class_def, code_item,
876                                  method_access_flags));
877    }
878    {
879      vios->Stream() << "OatMethodOffsets ";
880      if (options_.absolute_addresses_) {
881        vios->Stream() << StringPrintf("%p ", oat_method_offsets);
882      }
883      vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset);
884      if (oat_method_offsets_offset > oat_file_.Size()) {
885        vios->Stream() << StringPrintf(
886            "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n",
887            oat_method_offsets_offset, oat_file_.Size());
888        // If we can't read OatMethodOffsets, the rest of the data is dangerous to read.
889        vios->Stream() << std::flush;
890        return false;
891      }
892
893      ScopedIndentation indent2(vios);
894      vios->Stream() << StringPrintf("code_offset: 0x%08x ", code_offset);
895      uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset());
896      if (aligned_code_begin > oat_file_.Size()) {
897        vios->Stream() << StringPrintf("WARNING: "
898                                       "code offset 0x%08x is past end of file 0x%08zx.\n",
899                                       aligned_code_begin, oat_file_.Size());
900        success = false;
901      }
902      vios->Stream() << "\n";
903
904      vios->Stream() << "gc_map: ";
905      if (options_.absolute_addresses_) {
906        vios->Stream() << StringPrintf("%p ", oat_method.GetGcMap());
907      }
908      uint32_t gc_map_offset = oat_method.GetGcMapOffset();
909      vios->Stream() << StringPrintf("(offset=0x%08x)\n", gc_map_offset);
910      if (gc_map_offset > oat_file_.Size()) {
911        vios->Stream() << StringPrintf("WARNING: "
912                           "gc map table offset 0x%08x is past end of file 0x%08zx.\n",
913                           gc_map_offset, oat_file_.Size());
914        success = false;
915      } else if (options_.dump_raw_gc_map_) {
916        ScopedIndentation indent3(vios);
917        DumpGcMap(vios->Stream(), oat_method, code_item);
918      }
919    }
920    {
921      vios->Stream() << "OatQuickMethodHeader ";
922      uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset();
923      const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader();
924
925      if (options_.absolute_addresses_) {
926        vios->Stream() << StringPrintf("%p ", method_header);
927      }
928      vios->Stream() << StringPrintf("(offset=0x%08x)\n", method_header_offset);
929      if (method_header_offset > oat_file_.Size()) {
930        vios->Stream() << StringPrintf(
931            "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n",
932            method_header_offset, oat_file_.Size());
933        // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read.
934        vios->Stream() << std::flush;
935        return false;
936      }
937
938      ScopedIndentation indent2(vios);
939      vios->Stream() << "mapping_table: ";
940      if (options_.absolute_addresses_) {
941        vios->Stream() << StringPrintf("%p ", oat_method.GetMappingTable());
942      }
943      uint32_t mapping_table_offset = oat_method.GetMappingTableOffset();
944      vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset());
945      if (mapping_table_offset > oat_file_.Size()) {
946        vios->Stream() << StringPrintf("WARNING: "
947                                       "mapping table offset 0x%08x is past end of file 0x%08zx. "
948                                       "mapping table offset was loaded from offset 0x%08x.\n",
949                                       mapping_table_offset, oat_file_.Size(),
950                                       oat_method.GetMappingTableOffsetOffset());
951        success = false;
952      } else if (options_.dump_raw_mapping_table_) {
953        ScopedIndentation indent3(vios);
954        DumpMappingTable(vios, oat_method);
955      }
956
957      vios->Stream() << "vmap_table: ";
958      if (options_.absolute_addresses_) {
959        vios->Stream() << StringPrintf("%p ", oat_method.GetVmapTable());
960      }
961      uint32_t vmap_table_offset = oat_method.GetVmapTableOffset();
962      vios->Stream() << StringPrintf("(offset=0x%08x)\n", vmap_table_offset);
963      if (vmap_table_offset > oat_file_.Size()) {
964        vios->Stream() << StringPrintf("WARNING: "
965                                       "vmap table offset 0x%08x is past end of file 0x%08zx. "
966                                       "vmap table offset was loaded from offset 0x%08x.\n",
967                                       vmap_table_offset, oat_file_.Size(),
968                                       oat_method.GetVmapTableOffsetOffset());
969        success = false;
970      } else if (options_.dump_vmap_) {
971        DumpVmapData(vios, oat_method, code_item);
972      }
973    }
974    {
975      vios->Stream() << "QuickMethodFrameInfo\n";
976
977      ScopedIndentation indent2(vios);
978      vios->Stream()
979          << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes());
980      vios->Stream() << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask());
981      DumpSpillMask(vios->Stream(), oat_method.GetCoreSpillMask(), false);
982      vios->Stream() << "\n";
983      vios->Stream() << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask());
984      DumpSpillMask(vios->Stream(), oat_method.GetFpSpillMask(), true);
985      vios->Stream() << "\n";
986    }
987    {
988      // Based on spill masks from QuickMethodFrameInfo so placed
989      // after it is dumped, but useful for understanding quick
990      // code, so dumped here.
991      ScopedIndentation indent2(vios);
992      DumpVregLocations(vios->Stream(), oat_method, code_item);
993    }
994    {
995      vios->Stream() << "CODE: ";
996      uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset();
997      if (code_size_offset > oat_file_.Size()) {
998        ScopedIndentation indent2(vios);
999        vios->Stream() << StringPrintf("WARNING: "
1000                                       "code size offset 0x%08x is past end of file 0x%08zx.",
1001                                       code_size_offset, oat_file_.Size());
1002        success = false;
1003      } else {
1004        const void* code = oat_method.GetQuickCode();
1005        uint32_t aligned_code_begin = AlignCodeOffset(code_offset);
1006        uint64_t aligned_code_end = aligned_code_begin + code_size;
1007
1008        if (options_.absolute_addresses_) {
1009          vios->Stream() << StringPrintf("%p ", code);
1010        }
1011        vios->Stream() << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n",
1012                                       code_offset,
1013                                       code_size_offset,
1014                                       code_size,
1015                                       code != nullptr ? "..." : "");
1016
1017        ScopedIndentation indent2(vios);
1018        if (aligned_code_begin > oat_file_.Size()) {
1019          vios->Stream() << StringPrintf("WARNING: "
1020                                         "start of code at 0x%08x is past end of file 0x%08zx.",
1021                                         aligned_code_begin, oat_file_.Size());
1022          success = false;
1023        } else if (aligned_code_end > oat_file_.Size()) {
1024          vios->Stream() << StringPrintf(
1025              "WARNING: "
1026              "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. "
1027              "code size is 0x%08x loaded from offset 0x%08x.\n",
1028              aligned_code_end, oat_file_.Size(),
1029              code_size, code_size_offset);
1030          success = false;
1031          if (options_.disassemble_code_) {
1032            if (code_size_offset + kPrologueBytes <= oat_file_.Size()) {
1033              DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes);
1034            }
1035          }
1036        } else if (code_size > kMaxCodeSize) {
1037          vios->Stream() << StringPrintf(
1038              "WARNING: "
1039              "code size %d is bigger than max expected threshold of %d. "
1040              "code size is 0x%08x loaded from offset 0x%08x.\n",
1041              code_size, kMaxCodeSize,
1042              code_size, code_size_offset);
1043          success = false;
1044          if (options_.disassemble_code_) {
1045            if (code_size_offset + kPrologueBytes <= oat_file_.Size()) {
1046              DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes);
1047            }
1048          }
1049        } else if (options_.disassemble_code_) {
1050          DumpCode(vios, verifier.get(), oat_method, code_item, !success, 0);
1051        }
1052      }
1053    }
1054    vios->Stream() << std::flush;
1055    return success;
1056  }
1057
1058  void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) {
1059    if (spill_mask == 0) {
1060      return;
1061    }
1062    os << "(";
1063    for (size_t i = 0; i < 32; i++) {
1064      if ((spill_mask & (1 << i)) != 0) {
1065        if (is_float) {
1066          os << "fr" << i;
1067        } else {
1068          os << "r" << i;
1069        }
1070        spill_mask ^= 1 << i;  // clear bit
1071        if (spill_mask != 0) {
1072          os << ", ";
1073        } else {
1074          break;
1075        }
1076      }
1077    }
1078    os << ")";
1079  }
1080
1081  // Display data stored at the the vmap offset of an oat method.
1082  void DumpVmapData(VariableIndentationOutputStream* vios,
1083                    const OatFile::OatMethod& oat_method,
1084                    const DexFile::CodeItem* code_item) {
1085    if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) {
1086      // The optimizing compiler outputs its CodeInfo data in the vmap table.
1087      const void* raw_code_info = oat_method.GetVmapTable();
1088      if (raw_code_info != nullptr) {
1089        CodeInfo code_info(raw_code_info);
1090        DCHECK(code_item != nullptr);
1091        ScopedIndentation indent1(vios);
1092        DumpCodeInfo(vios, code_info, oat_method, *code_item);
1093      }
1094    } else if (IsMethodGeneratedByDexToDexCompiler(oat_method, code_item)) {
1095      // We don't encode the size in the table, so just emit that we have quickened
1096      // information.
1097      ScopedIndentation indent(vios);
1098      vios->Stream() << "quickened data\n";
1099    } else {
1100      // Otherwise, display the vmap table.
1101      const uint8_t* raw_table = oat_method.GetVmapTable();
1102      if (raw_table != nullptr) {
1103        VmapTable vmap_table(raw_table);
1104        DumpVmapTable(vios->Stream(), oat_method, vmap_table);
1105      }
1106    }
1107  }
1108
1109  // Display a CodeInfo object emitted by the optimizing compiler.
1110  void DumpCodeInfo(VariableIndentationOutputStream* vios,
1111                    const CodeInfo& code_info,
1112                    const OatFile::OatMethod& oat_method,
1113                    const DexFile::CodeItem& code_item) {
1114    code_info.Dump(vios,
1115                   oat_method.GetCodeOffset(),
1116                   code_item.registers_size_,
1117                   options_.dump_code_info_stack_maps_);
1118  }
1119
1120  // Display a vmap table.
1121  void DumpVmapTable(std::ostream& os,
1122                     const OatFile::OatMethod& oat_method,
1123                     const VmapTable& vmap_table) {
1124    bool first = true;
1125    bool processing_fp = false;
1126    uint32_t spill_mask = oat_method.GetCoreSpillMask();
1127    for (size_t i = 0; i < vmap_table.Size(); i++) {
1128      uint16_t dex_reg = vmap_table[i];
1129      uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i,
1130                                                    processing_fp ? kFloatVReg : kIntVReg);
1131      os << (first ? "v" : ", v")  << dex_reg;
1132      if (!processing_fp) {
1133        os << "/r" << cpu_reg;
1134      } else {
1135        os << "/fr" << cpu_reg;
1136      }
1137      first = false;
1138      if (!processing_fp && dex_reg == 0xFFFF) {
1139        processing_fp = true;
1140        spill_mask = oat_method.GetFpSpillMask();
1141      }
1142    }
1143    os << "\n";
1144  }
1145
1146  void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method,
1147                         const DexFile::CodeItem* code_item) {
1148    if (code_item != nullptr) {
1149      size_t num_locals_ins = code_item->registers_size_;
1150      size_t num_ins = code_item->ins_size_;
1151      size_t num_locals = num_locals_ins - num_ins;
1152      size_t num_outs = code_item->outs_size_;
1153
1154      os << "vr_stack_locations:";
1155      for (size_t reg = 0; reg <= num_locals_ins; reg++) {
1156        // For readability, delimit the different kinds of VRs.
1157        if (reg == num_locals_ins) {
1158          os << "\n\tmethod*:";
1159        } else if (reg == num_locals && num_ins > 0) {
1160          os << "\n\tins:";
1161        } else if (reg == 0 && num_locals > 0) {
1162          os << "\n\tlocals:";
1163        }
1164
1165        uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode(
1166            code_item,
1167            oat_method.GetCoreSpillMask(),
1168            oat_method.GetFpSpillMask(),
1169            oat_method.GetFrameSizeInBytes(),
1170            reg,
1171            GetInstructionSet());
1172        os << " v" << reg << "[sp + #" << offset << "]";
1173      }
1174
1175      for (size_t out_reg = 0; out_reg < num_outs; out_reg++) {
1176        if (out_reg == 0) {
1177          os << "\n\touts:";
1178        }
1179
1180        uint32_t offset = StackVisitor::GetOutVROffset(out_reg, GetInstructionSet());
1181        os << " v" << out_reg << "[sp + #" << offset << "]";
1182      }
1183
1184      os << "\n";
1185    }
1186  }
1187
1188  void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method,
1189                    const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) {
1190    const uint8_t* raw_table = oat_method.GetVmapTable();
1191    if (raw_table != nullptr) {
1192      const VmapTable vmap_table(raw_table);
1193      uint32_t vmap_offset;
1194      if (vmap_table.IsInContext(reg, kind, &vmap_offset)) {
1195        bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg);
1196        uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask()
1197                                       : oat_method.GetCoreSpillMask();
1198        os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind);
1199      } else {
1200        uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode(
1201            code_item,
1202            oat_method.GetCoreSpillMask(),
1203            oat_method.GetFpSpillMask(),
1204            oat_method.GetFrameSizeInBytes(),
1205            reg,
1206            GetInstructionSet());
1207        os << "[sp + #" << offset << "]";
1208      }
1209    }
1210  }
1211
1212  void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method,
1213                          const DexFile::CodeItem* code_item,
1214                          size_t num_regs, const uint8_t* reg_bitmap) {
1215    bool first = true;
1216    for (size_t reg = 0; reg < num_regs; reg++) {
1217      if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) {
1218        if (first) {
1219          os << "  v" << reg << " (";
1220          DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
1221          os << ")";
1222          first = false;
1223        } else {
1224          os << ", v" << reg << " (";
1225          DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
1226          os << ")";
1227        }
1228      }
1229    }
1230    if (first) {
1231      os << "No registers in GC map\n";
1232    } else {
1233      os << "\n";
1234    }
1235  }
1236  void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method,
1237                 const DexFile::CodeItem* code_item) {
1238    const uint8_t* gc_map_raw = oat_method.GetGcMap();
1239    if (gc_map_raw == nullptr) {
1240      return;  // No GC map.
1241    }
1242    const void* quick_code = oat_method.GetQuickCode();
1243    NativePcOffsetToReferenceMap map(gc_map_raw);
1244    for (size_t entry = 0; entry < map.NumEntries(); entry++) {
1245      const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) +
1246          map.GetNativePcOffset(entry);
1247      os << StringPrintf("%p", native_pc);
1248      DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry));
1249    }
1250  }
1251
1252  void DumpMappingTable(VariableIndentationOutputStream* vios,
1253                        const OatFile::OatMethod& oat_method) {
1254    const void* quick_code = oat_method.GetQuickCode();
1255    if (quick_code == nullptr) {
1256      return;
1257    }
1258    MappingTable table(oat_method.GetMappingTable());
1259    if (table.TotalSize() != 0) {
1260      if (table.PcToDexSize() != 0) {
1261        typedef MappingTable::PcToDexIterator It;
1262        vios->Stream() << "suspend point mappings {\n";
1263        for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) {
1264          ScopedIndentation indent1(vios);
1265          vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc());
1266        }
1267        vios->Stream() << "}\n";
1268      }
1269      if (table.DexToPcSize() != 0) {
1270        typedef MappingTable::DexToPcIterator It;
1271        vios->Stream() << "catch entry mappings {\n";
1272        for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) {
1273          ScopedIndentation indent1(vios);
1274          vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc());
1275        }
1276        vios->Stream() << "}\n";
1277      }
1278    }
1279  }
1280
1281  uint32_t DumpInformationAtOffset(VariableIndentationOutputStream* vios,
1282                                   const OatFile::OatMethod& oat_method,
1283                                   const DexFile::CodeItem* code_item,
1284                                   size_t offset,
1285                                   bool suspend_point_mapping) {
1286    if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) {
1287      if (suspend_point_mapping) {
1288        ScopedIndentation indent1(vios);
1289        DumpDexRegisterMapAtOffset(vios, oat_method, code_item, offset);
1290      }
1291      // The return value is not used in the case of a method compiled
1292      // with the optimizing compiler.
1293      return DexFile::kDexNoIndex;
1294    } else {
1295      return DumpMappingAtOffset(vios->Stream(), oat_method, offset, suspend_point_mapping);
1296    }
1297  }
1298
1299  uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method,
1300                               size_t offset, bool suspend_point_mapping) {
1301    MappingTable table(oat_method.GetMappingTable());
1302    if (suspend_point_mapping && table.PcToDexSize() > 0) {
1303      typedef MappingTable::PcToDexIterator It;
1304      for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) {
1305        if (offset == cur.NativePcOffset()) {
1306          os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc());
1307          return cur.DexPc();
1308        }
1309      }
1310    } else if (!suspend_point_mapping && table.DexToPcSize() > 0) {
1311      typedef MappingTable::DexToPcIterator It;
1312      for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) {
1313        if (offset == cur.NativePcOffset()) {
1314          os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc());
1315          return cur.DexPc();
1316        }
1317      }
1318    }
1319    return DexFile::kDexNoIndex;
1320  }
1321
1322  void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method,
1323                                 const DexFile::CodeItem* code_item, size_t native_pc_offset) {
1324    const uint8_t* gc_map_raw = oat_method.GetGcMap();
1325    if (gc_map_raw != nullptr) {
1326      NativePcOffsetToReferenceMap map(gc_map_raw);
1327      if (map.HasEntry(native_pc_offset)) {
1328        size_t num_regs = map.RegWidth() * 8;
1329        const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset);
1330        bool first = true;
1331        for (size_t reg = 0; reg < num_regs; reg++) {
1332          if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) {
1333            if (first) {
1334              os << "GC map objects:  v" << reg << " (";
1335              DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
1336              os << ")";
1337              first = false;
1338            } else {
1339              os << ", v" << reg << " (";
1340              DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
1341              os << ")";
1342            }
1343          }
1344        }
1345        if (!first) {
1346          os << "\n";
1347        }
1348      }
1349    }
1350  }
1351
1352  void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier,
1353                        const OatFile::OatMethod& oat_method,
1354                        const DexFile::CodeItem* code_item, uint32_t dex_pc) {
1355    DCHECK(verifier != nullptr);
1356    std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc);
1357    bool first = true;
1358    for (size_t reg = 0; reg < code_item->registers_size_; reg++) {
1359      VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2));
1360      if (kind != kUndefined) {
1361        if (first) {
1362          os << "VRegs:  v";
1363          first = false;
1364        } else {
1365          os << ", v";
1366        }
1367        os << reg << " (";
1368        switch (kind) {
1369          case kImpreciseConstant:
1370            os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", ";
1371            DescribeVReg(os, oat_method, code_item, reg, kind);
1372            break;
1373          case kConstant:
1374            os << "Constant: " << kinds.at((reg * 2) + 1);
1375            break;
1376          default:
1377            DescribeVReg(os, oat_method, code_item, reg, kind);
1378            break;
1379        }
1380        os << ")";
1381      }
1382    }
1383    if (!first) {
1384      os << "\n";
1385    }
1386  }
1387
1388
1389  void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) {
1390    if (code_item != nullptr) {
1391      size_t i = 0;
1392      while (i < code_item->insns_size_in_code_units_) {
1393        const Instruction* instruction = Instruction::At(&code_item->insns_[i]);
1394        os << StringPrintf("0x%04zx: ", i) << instruction->DumpHexLE(5)
1395           << StringPrintf("\t| %s\n", instruction->DumpString(&dex_file).c_str());
1396        i += instruction->SizeInCodeUnits();
1397      }
1398    }
1399  }
1400
1401  // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by
1402  // the optimizing compiler?
1403  static bool IsMethodGeneratedByOptimizingCompiler(const OatFile::OatMethod& oat_method,
1404                                                    const DexFile::CodeItem* code_item) {
1405    // If the native GC map is null and the Dex `code_item` is not
1406    // null, then this method has been compiled with the optimizing
1407    // compiler.
1408    return oat_method.GetQuickCode() != nullptr &&
1409           oat_method.GetGcMap() == nullptr &&
1410           code_item != nullptr;
1411  }
1412
1413  // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by
1414  // the dextodex compiler?
1415  static bool IsMethodGeneratedByDexToDexCompiler(const OatFile::OatMethod& oat_method,
1416                                                  const DexFile::CodeItem* code_item) {
1417    // If the quick code is null, the Dex `code_item` is not
1418    // null, and the vmap table is not null, then this method has been compiled
1419    // with the dextodex compiler.
1420    return oat_method.GetQuickCode() == nullptr &&
1421           oat_method.GetVmapTable() != nullptr &&
1422           code_item != nullptr;
1423  }
1424
1425  void DumpDexRegisterMapAtOffset(VariableIndentationOutputStream* vios,
1426                                  const OatFile::OatMethod& oat_method,
1427                                  const DexFile::CodeItem* code_item,
1428                                  size_t offset) {
1429    // This method is only relevant for oat methods compiled with the
1430    // optimizing compiler.
1431    DCHECK(IsMethodGeneratedByOptimizingCompiler(oat_method, code_item));
1432
1433    // The optimizing compiler outputs its CodeInfo data in the vmap table.
1434    const void* raw_code_info = oat_method.GetVmapTable();
1435    if (raw_code_info != nullptr) {
1436      CodeInfo code_info(raw_code_info);
1437      StackMapEncoding encoding = code_info.ExtractEncoding();
1438      StackMap stack_map = code_info.GetStackMapForNativePcOffset(offset, encoding);
1439      if (stack_map.IsValid()) {
1440        stack_map.Dump(vios, code_info, encoding, oat_method.GetCodeOffset(),
1441                       code_item->registers_size_);
1442      }
1443    }
1444  }
1445
1446  verifier::MethodVerifier* DumpVerifier(VariableIndentationOutputStream* vios,
1447                                         StackHandleScope<1>* hs,
1448                                         uint32_t dex_method_idx,
1449                                         const DexFile* dex_file,
1450                                         const DexFile::ClassDef& class_def,
1451                                         const DexFile::CodeItem* code_item,
1452                                         uint32_t method_access_flags) {
1453    if ((method_access_flags & kAccNative) == 0) {
1454      ScopedObjectAccess soa(Thread::Current());
1455      Runtime* const runtime = Runtime::Current();
1456      Handle<mirror::DexCache> dex_cache(
1457          hs->NewHandle(runtime->GetClassLinker()->RegisterDexFile(*dex_file,
1458                                                                   runtime->GetLinearAlloc())));
1459      DCHECK(options_.class_loader_ != nullptr);
1460      return verifier::MethodVerifier::VerifyMethodAndDump(
1461          soa.Self(), vios, dex_method_idx, dex_file, dex_cache, *options_.class_loader_,
1462          &class_def, code_item, nullptr, method_access_flags);
1463    }
1464
1465    return nullptr;
1466  }
1467
1468  void DumpCode(VariableIndentationOutputStream* vios,
1469                verifier::MethodVerifier* verifier,
1470                const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item,
1471                bool bad_input, size_t code_size) {
1472    const void* quick_code = oat_method.GetQuickCode();
1473
1474    if (code_size == 0) {
1475      code_size = oat_method.GetQuickCodeSize();
1476    }
1477    if (code_size == 0 || quick_code == nullptr) {
1478      vios->Stream() << "NO CODE!\n";
1479      return;
1480    } else {
1481      const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code);
1482      size_t offset = 0;
1483      while (offset < code_size) {
1484        if (!bad_input) {
1485          DumpInformationAtOffset(vios, oat_method, code_item, offset, false);
1486        }
1487        offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset);
1488        if (!bad_input) {
1489          uint32_t dex_pc =
1490              DumpInformationAtOffset(vios, oat_method, code_item, offset, true);
1491          if (dex_pc != DexFile::kDexNoIndex) {
1492            DumpGcMapAtNativePcOffset(vios->Stream(), oat_method, code_item, offset);
1493            if (verifier != nullptr) {
1494              DumpVRegsAtDexPc(vios->Stream(), verifier, oat_method, code_item, dex_pc);
1495            }
1496          }
1497        }
1498      }
1499    }
1500  }
1501
1502  const OatFile& oat_file_;
1503  const std::vector<const OatFile::OatDexFile*> oat_dex_files_;
1504  const OatDumperOptions& options_;
1505  uint32_t resolved_addr2instr_;
1506  InstructionSet instruction_set_;
1507  std::set<uintptr_t> offsets_;
1508  Disassembler* disassembler_;
1509};
1510
1511class ImageDumper {
1512 public:
1513  ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space,
1514              const ImageHeader& image_header, OatDumperOptions* oat_dumper_options)
1515      : os_(os),
1516        vios_(os),
1517        indent1_(&vios_),
1518        image_space_(image_space),
1519        image_header_(image_header),
1520        oat_dumper_options_(oat_dumper_options) {}
1521
1522  bool Dump() SHARED_REQUIRES(Locks::mutator_lock_) {
1523    std::ostream& os = *os_;
1524    std::ostream& indent_os = vios_.Stream();
1525
1526    os << "MAGIC: " << image_header_.GetMagic() << "\n\n";
1527
1528    os << "IMAGE LOCATION: " << image_space_.GetImageLocation() << "\n\n";
1529
1530    os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n";
1531
1532    os << "IMAGE SIZE: " << image_header_.GetImageSize() << "\n\n";
1533
1534    for (size_t i = 0; i < ImageHeader::kSectionCount; ++i) {
1535      auto section = static_cast<ImageHeader::ImageSections>(i);
1536      os << "IMAGE SECTION " << section << ": " << image_header_.GetImageSection(section) << "\n\n";
1537    }
1538
1539    os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum());
1540
1541    os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n";
1542
1543    os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n";
1544
1545    os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n";
1546
1547    os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n";
1548
1549    os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n";
1550
1551    os << "COMPILE PIC: " << (image_header_.CompilePic() ? "yes" : "no") << "\n\n";
1552
1553    {
1554      os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n";
1555      static_assert(arraysize(image_roots_descriptions_) ==
1556          static_cast<size_t>(ImageHeader::kImageRootsMax), "sizes must match");
1557      for (int i = 0; i < ImageHeader::kImageRootsMax; i++) {
1558        ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i);
1559        const char* image_root_description = image_roots_descriptions_[i];
1560        mirror::Object* image_root_object = image_header_.GetImageRoot(image_root);
1561        indent_os << StringPrintf("%s: %p\n", image_root_description, image_root_object);
1562        if (image_root_object->IsObjectArray()) {
1563          mirror::ObjectArray<mirror::Object>* image_root_object_array
1564              = image_root_object->AsObjectArray<mirror::Object>();
1565          ScopedIndentation indent2(&vios_);
1566          for (int j = 0; j < image_root_object_array->GetLength(); j++) {
1567            mirror::Object* value = image_root_object_array->Get(j);
1568            size_t run = 0;
1569            for (int32_t k = j + 1; k < image_root_object_array->GetLength(); k++) {
1570              if (value == image_root_object_array->Get(k)) {
1571                run++;
1572              } else {
1573                break;
1574              }
1575            }
1576            if (run == 0) {
1577              indent_os << StringPrintf("%d: ", j);
1578            } else {
1579              indent_os << StringPrintf("%d to %zd: ", j, j + run);
1580              j = j + run;
1581            }
1582            if (value != nullptr) {
1583              PrettyObjectValue(indent_os, value->GetClass(), value);
1584            } else {
1585              indent_os << j << ": null\n";
1586            }
1587          }
1588        }
1589      }
1590    }
1591
1592    {
1593      os << "METHOD ROOTS\n";
1594      static_assert(arraysize(image_methods_descriptions_) ==
1595          static_cast<size_t>(ImageHeader::kImageMethodsCount), "sizes must match");
1596      for (int i = 0; i < ImageHeader::kImageMethodsCount; i++) {
1597        auto image_root = static_cast<ImageHeader::ImageMethod>(i);
1598        const char* description = image_methods_descriptions_[i];
1599        auto* image_method = image_header_.GetImageMethod(image_root);
1600        indent_os << StringPrintf("%s: %p\n", description, image_method);
1601      }
1602    }
1603    os << "\n";
1604
1605    Runtime* const runtime = Runtime::Current();
1606    ClassLinker* class_linker = runtime->GetClassLinker();
1607    std::string image_filename = image_space_.GetImageFilename();
1608    std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename);
1609    os << "OAT LOCATION: " << oat_location;
1610    os << "\n";
1611    std::string error_msg;
1612    const OatFile* oat_file = runtime->GetOatFileManager().FindOpenedOatFileFromOatLocation(
1613        oat_location);
1614    if (oat_file == nullptr) {
1615      oat_file = OatFile::Open(oat_location, oat_location,
1616                               nullptr, nullptr, false, nullptr,
1617                               &error_msg);
1618      if (oat_file == nullptr) {
1619        os << "NOT FOUND: " << error_msg << "\n";
1620        return false;
1621      }
1622    }
1623    os << "\n";
1624
1625    stats_.oat_file_bytes = oat_file->Size();
1626
1627    oat_dumper_.reset(new OatDumper(*oat_file, *oat_dumper_options_));
1628
1629    for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) {
1630      CHECK(oat_dex_file != nullptr);
1631      stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(),
1632                                                         oat_dex_file->FileSize()));
1633    }
1634
1635    os << "OBJECTS:\n" << std::flush;
1636
1637    // Loop through the image space and dump its objects.
1638    gc::Heap* heap = runtime->GetHeap();
1639    Thread* self = Thread::Current();
1640    {
1641      {
1642        WriterMutexLock mu(self, *Locks::heap_bitmap_lock_);
1643        heap->FlushAllocStack();
1644      }
1645      // Since FlushAllocStack() above resets the (active) allocation
1646      // stack. Need to revoke the thread-local allocation stacks that
1647      // point into it.
1648      ScopedThreadSuspension sts(self, kNative);
1649      ScopedSuspendAll ssa(__FUNCTION__);
1650      heap->RevokeAllThreadLocalAllocationStacks(self);
1651    }
1652    {
1653      // Mark dex caches.
1654      dex_caches_.clear();
1655      {
1656        ReaderMutexLock mu(self, *class_linker->DexLock());
1657        for (const ClassLinker::DexCacheData& data : class_linker->GetDexCachesData()) {
1658          mirror::DexCache* dex_cache =
1659              down_cast<mirror::DexCache*>(self->DecodeJObject(data.weak_root));
1660          if (dex_cache != nullptr) {
1661            dex_caches_.insert(dex_cache);
1662          }
1663        }
1664      }
1665      ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_);
1666      // Dump the normal objects before ArtMethods.
1667      image_space_.GetLiveBitmap()->Walk(ImageDumper::Callback, this);
1668      indent_os << "\n";
1669      // TODO: Dump fields.
1670      // Dump methods after.
1671      const auto& methods_section = image_header_.GetMethodsSection();
1672      const size_t pointer_size =
1673          InstructionSetPointerSize(oat_dumper_->GetOatInstructionSet());
1674      DumpArtMethodVisitor visitor(this);
1675      methods_section.VisitPackedArtMethods(&visitor, image_space_.Begin(), pointer_size);
1676      // Dump the large objects separately.
1677      heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this);
1678      indent_os << "\n";
1679    }
1680    os << "STATS:\n" << std::flush;
1681    std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str()));
1682    if (file.get() == nullptr) {
1683      LOG(WARNING) << "Failed to find image in " << image_filename;
1684    }
1685    if (file.get() != nullptr) {
1686      stats_.file_bytes = file->GetLength();
1687    }
1688    size_t header_bytes = sizeof(ImageHeader);
1689    const auto& object_section = image_header_.GetImageSection(ImageHeader::kSectionObjects);
1690    const auto& field_section = image_header_.GetImageSection(ImageHeader::kSectionArtFields);
1691    const auto& method_section = image_header_.GetMethodsSection();
1692    const auto& dex_cache_arrays_section = image_header_.GetImageSection(
1693        ImageHeader::kSectionDexCacheArrays);
1694    const auto& intern_section = image_header_.GetImageSection(
1695        ImageHeader::kSectionInternedStrings);
1696    const auto& class_table_section = image_header_.GetImageSection(
1697        ImageHeader::kSectionClassTable);
1698    const auto& bitmap_section = image_header_.GetImageSection(ImageHeader::kSectionImageBitmap);
1699
1700    stats_.header_bytes = header_bytes;
1701
1702    // Objects are kObjectAlignment-aligned.
1703    // CHECK_EQ(RoundUp(header_bytes, kObjectAlignment), object_section.Offset());
1704    if (object_section.Offset() > header_bytes) {
1705      stats_.alignment_bytes += object_section.Offset() - header_bytes;
1706    }
1707
1708    // Field section is 4-byte aligned.
1709    constexpr size_t kFieldSectionAlignment = 4U;
1710    uint32_t end_objects = object_section.Offset() + object_section.Size();
1711    CHECK_EQ(RoundUp(end_objects, kFieldSectionAlignment), field_section.Offset());
1712    stats_.alignment_bytes += field_section.Offset() - end_objects;
1713
1714    // Method section is 4/8 byte aligned depending on target. Just check for 4-byte alignment.
1715    uint32_t end_fields = field_section.Offset() + field_section.Size();
1716    CHECK_ALIGNED(method_section.Offset(), 4);
1717    stats_.alignment_bytes += method_section.Offset() - end_fields;
1718
1719    // Dex cache arrays section is aligned depending on the target. Just check for 4-byte alignment.
1720    uint32_t end_methods = method_section.Offset() + method_section.Size();
1721    CHECK_ALIGNED(dex_cache_arrays_section.Offset(), 4);
1722    stats_.alignment_bytes += dex_cache_arrays_section.Offset() - end_methods;
1723
1724    // Intern table is 8-byte aligned.
1725    uint32_t end_caches = dex_cache_arrays_section.Offset() + dex_cache_arrays_section.Size();
1726    CHECK_EQ(RoundUp(end_caches, 8U), intern_section.Offset());
1727    stats_.alignment_bytes += intern_section.Offset() - end_caches;
1728
1729    // Add space between intern table and class table.
1730    uint32_t end_intern = intern_section.Offset() + intern_section.Size();
1731    stats_.alignment_bytes += class_table_section.Offset() - end_intern;
1732
1733    // Add space between class table and bitmap. Expect the bitmap to be page-aligned.
1734    uint32_t end_ctable = class_table_section.Offset() + class_table_section.Size();
1735    CHECK_ALIGNED(bitmap_section.Offset(), kPageSize);
1736    stats_.alignment_bytes += bitmap_section.Offset() - end_ctable;
1737
1738    stats_.bitmap_bytes += bitmap_section.Size();
1739    stats_.art_field_bytes += field_section.Size();
1740    stats_.art_method_bytes += method_section.Size();
1741    stats_.dex_cache_arrays_bytes += dex_cache_arrays_section.Size();
1742    stats_.interned_strings_bytes += intern_section.Size();
1743    stats_.class_table_bytes += class_table_section.Size();
1744    stats_.Dump(os, indent_os);
1745    os << "\n";
1746
1747    os << std::flush;
1748
1749    return oat_dumper_->Dump(os);
1750  }
1751
1752 private:
1753  class DumpArtMethodVisitor : public ArtMethodVisitor {
1754   public:
1755    explicit DumpArtMethodVisitor(ImageDumper* image_dumper) : image_dumper_(image_dumper) {}
1756
1757    virtual void Visit(ArtMethod* method) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) {
1758      std::ostream& indent_os = image_dumper_->vios_.Stream();
1759      indent_os << method << " " << " ArtMethod: " << PrettyMethod(method) << "\n";
1760      image_dumper_->DumpMethod(method, image_dumper_, indent_os);
1761      indent_os << "\n";
1762    }
1763
1764   private:
1765    ImageDumper* const image_dumper_;
1766  };
1767
1768  static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value)
1769      SHARED_REQUIRES(Locks::mutator_lock_) {
1770    CHECK(type != nullptr);
1771    if (value == nullptr) {
1772      os << StringPrintf("null   %s\n", PrettyDescriptor(type).c_str());
1773    } else if (type->IsStringClass()) {
1774      mirror::String* string = value->AsString();
1775      os << StringPrintf("%p   String: %s\n", string,
1776                         PrintableString(string->ToModifiedUtf8().c_str()).c_str());
1777    } else if (type->IsClassClass()) {
1778      mirror::Class* klass = value->AsClass();
1779      os << StringPrintf("%p   Class: %s\n", klass, PrettyDescriptor(klass).c_str());
1780    } else {
1781      os << StringPrintf("%p   %s\n", value, PrettyDescriptor(type).c_str());
1782    }
1783  }
1784
1785  static void PrintField(std::ostream& os, ArtField* field, mirror::Object* obj)
1786      SHARED_REQUIRES(Locks::mutator_lock_) {
1787    os << StringPrintf("%s: ", field->GetName());
1788    switch (field->GetTypeAsPrimitiveType()) {
1789      case Primitive::kPrimLong:
1790        os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj));
1791        break;
1792      case Primitive::kPrimDouble:
1793        os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj));
1794        break;
1795      case Primitive::kPrimFloat:
1796        os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj));
1797        break;
1798      case Primitive::kPrimInt:
1799        os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj));
1800        break;
1801      case Primitive::kPrimChar:
1802        os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj));
1803        break;
1804      case Primitive::kPrimShort:
1805        os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj));
1806        break;
1807      case Primitive::kPrimBoolean:
1808        os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj)? "true" : "false",
1809            field->GetBoolean(obj));
1810        break;
1811      case Primitive::kPrimByte:
1812        os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj));
1813        break;
1814      case Primitive::kPrimNot: {
1815        // Get the value, don't compute the type unless it is non-null as we don't want
1816        // to cause class loading.
1817        mirror::Object* value = field->GetObj(obj);
1818        if (value == nullptr) {
1819          os << StringPrintf("null   %s\n", PrettyDescriptor(field->GetTypeDescriptor()).c_str());
1820        } else {
1821          // Grab the field type without causing resolution.
1822          mirror::Class* field_type = field->GetType<false>();
1823          if (field_type != nullptr) {
1824            PrettyObjectValue(os, field_type, value);
1825          } else {
1826            os << StringPrintf("%p   %s\n", value,
1827                               PrettyDescriptor(field->GetTypeDescriptor()).c_str());
1828          }
1829        }
1830        break;
1831      }
1832      default:
1833        os << "unexpected field type: " << field->GetTypeDescriptor() << "\n";
1834        break;
1835    }
1836  }
1837
1838  static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass)
1839      SHARED_REQUIRES(Locks::mutator_lock_) {
1840    mirror::Class* super = klass->GetSuperClass();
1841    if (super != nullptr) {
1842      DumpFields(os, obj, super);
1843    }
1844    for (ArtField& field : klass->GetIFields()) {
1845      PrintField(os, &field, obj);
1846    }
1847  }
1848
1849  bool InDumpSpace(const mirror::Object* object) {
1850    return image_space_.Contains(object);
1851  }
1852
1853  const void* GetQuickOatCodeBegin(ArtMethod* m)
1854      SHARED_REQUIRES(Locks::mutator_lock_) {
1855    const void* quick_code = m->GetEntryPointFromQuickCompiledCodePtrSize(
1856        InstructionSetPointerSize(oat_dumper_->GetOatInstructionSet()));
1857    if (Runtime::Current()->GetClassLinker()->IsQuickResolutionStub(quick_code)) {
1858      quick_code = oat_dumper_->GetQuickOatCode(m);
1859    }
1860    if (oat_dumper_->GetInstructionSet() == kThumb2) {
1861      quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1);
1862    }
1863    return quick_code;
1864  }
1865
1866  uint32_t GetQuickOatCodeSize(ArtMethod* m)
1867      SHARED_REQUIRES(Locks::mutator_lock_) {
1868    const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m));
1869    if (oat_code_begin == nullptr) {
1870      return 0;
1871    }
1872    return oat_code_begin[-1];
1873  }
1874
1875  const void* GetQuickOatCodeEnd(ArtMethod* m)
1876      SHARED_REQUIRES(Locks::mutator_lock_) {
1877    const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m));
1878    if (oat_code_begin == nullptr) {
1879      return nullptr;
1880    }
1881    return oat_code_begin + GetQuickOatCodeSize(m);
1882  }
1883
1884  static void Callback(mirror::Object* obj, void* arg) SHARED_REQUIRES(Locks::mutator_lock_) {
1885    DCHECK(obj != nullptr);
1886    DCHECK(arg != nullptr);
1887    ImageDumper* state = reinterpret_cast<ImageDumper*>(arg);
1888    if (!state->InDumpSpace(obj)) {
1889      return;
1890    }
1891
1892    size_t object_bytes = obj->SizeOf();
1893    size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes;
1894    state->stats_.object_bytes += object_bytes;
1895    state->stats_.alignment_bytes += alignment_bytes;
1896
1897    std::ostream& os = state->vios_.Stream();
1898
1899    mirror::Class* obj_class = obj->GetClass();
1900    if (obj_class->IsArrayClass()) {
1901      os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(),
1902                         obj->AsArray()->GetLength());
1903    } else if (obj->IsClass()) {
1904      mirror::Class* klass = obj->AsClass();
1905      os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str())
1906         << klass->GetStatus() << ")\n";
1907    } else if (obj_class->IsStringClass()) {
1908      os << StringPrintf("%p: java.lang.String %s\n", obj,
1909                         PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str());
1910    } else {
1911      os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str());
1912    }
1913    ScopedIndentation indent1(&state->vios_);
1914    DumpFields(os, obj, obj_class);
1915    const auto image_pointer_size =
1916        InstructionSetPointerSize(state->oat_dumper_->GetOatInstructionSet());
1917    if (obj->IsObjectArray()) {
1918      auto* obj_array = obj->AsObjectArray<mirror::Object>();
1919      for (int32_t i = 0, length = obj_array->GetLength(); i < length; i++) {
1920        mirror::Object* value = obj_array->Get(i);
1921        size_t run = 0;
1922        for (int32_t j = i + 1; j < length; j++) {
1923          if (value == obj_array->Get(j)) {
1924            run++;
1925          } else {
1926            break;
1927          }
1928        }
1929        if (run == 0) {
1930          os << StringPrintf("%d: ", i);
1931        } else {
1932          os << StringPrintf("%d to %zd: ", i, i + run);
1933          i = i + run;
1934        }
1935        mirror::Class* value_class =
1936            (value == nullptr) ? obj_class->GetComponentType() : value->GetClass();
1937        PrettyObjectValue(os, value_class, value);
1938      }
1939    } else if (obj->IsClass()) {
1940      mirror::Class* klass = obj->AsClass();
1941      if (klass->NumStaticFields() != 0) {
1942        os << "STATICS:\n";
1943        ScopedIndentation indent2(&state->vios_);
1944        for (ArtField& field : klass->GetSFields()) {
1945          PrintField(os, &field, field.GetDeclaringClass());
1946        }
1947      }
1948    } else {
1949      auto it = state->dex_caches_.find(obj);
1950      if (it != state->dex_caches_.end()) {
1951        auto* dex_cache = down_cast<mirror::DexCache*>(obj);
1952        const auto& field_section = state->image_header_.GetImageSection(
1953            ImageHeader::kSectionArtFields);
1954        const auto& method_section = state->image_header_.GetMethodsSection();
1955        size_t num_methods = dex_cache->NumResolvedMethods();
1956        if (num_methods != 0u) {
1957          os << "Methods (size=" << num_methods << "):";
1958          ScopedIndentation indent2(&state->vios_);
1959          auto* resolved_methods = dex_cache->GetResolvedMethods();
1960          for (size_t i = 0, length = dex_cache->NumResolvedMethods(); i < length; ++i) {
1961            auto* elem = mirror::DexCache::GetElementPtrSize(resolved_methods, i, image_pointer_size);
1962            size_t run = 0;
1963            for (size_t j = i + 1;
1964                j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_methods,
1965                                                                           j,
1966                                                                           image_pointer_size);
1967                ++j, ++run) {}
1968            if (run == 0) {
1969              os << StringPrintf("%zd: ", i);
1970            } else {
1971              os << StringPrintf("%zd to %zd: ", i, i + run);
1972              i = i + run;
1973            }
1974            std::string msg;
1975            if (elem == nullptr) {
1976              msg = "null";
1977            } else if (method_section.Contains(
1978                reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) {
1979              msg = PrettyMethod(reinterpret_cast<ArtMethod*>(elem));
1980            } else {
1981              msg = "<not in method section>";
1982            }
1983            os << StringPrintf("%p   %s\n", elem, msg.c_str());
1984          }
1985        }
1986        size_t num_fields = dex_cache->NumResolvedFields();
1987        if (num_fields != 0u) {
1988          os << "Fields (size=" << num_fields << "):";
1989          ScopedIndentation indent2(&state->vios_);
1990          auto* resolved_fields = dex_cache->GetResolvedFields();
1991          for (size_t i = 0, length = dex_cache->NumResolvedFields(); i < length; ++i) {
1992            auto* elem = mirror::DexCache::GetElementPtrSize(resolved_fields, i, image_pointer_size);
1993            size_t run = 0;
1994            for (size_t j = i + 1;
1995                j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_fields,
1996                                                                           j,
1997                                                                           image_pointer_size);
1998                ++j, ++run) {}
1999            if (run == 0) {
2000              os << StringPrintf("%zd: ", i);
2001            } else {
2002              os << StringPrintf("%zd to %zd: ", i, i + run);
2003              i = i + run;
2004            }
2005            std::string msg;
2006            if (elem == nullptr) {
2007              msg = "null";
2008            } else if (field_section.Contains(
2009                reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) {
2010              msg = PrettyField(reinterpret_cast<ArtField*>(elem));
2011            } else {
2012              msg = "<not in field section>";
2013            }
2014            os << StringPrintf("%p   %s\n", elem, msg.c_str());
2015          }
2016        }
2017      }
2018    }
2019    std::string temp;
2020    state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes);
2021  }
2022
2023  void DumpMethod(ArtMethod* method, ImageDumper* state, std::ostream& indent_os)
2024      SHARED_REQUIRES(Locks::mutator_lock_) {
2025    DCHECK(method != nullptr);
2026    const auto image_pointer_size =
2027        InstructionSetPointerSize(state->oat_dumper_->GetOatInstructionSet());
2028    const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method);
2029    const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method);
2030    OatQuickMethodHeader* method_header = reinterpret_cast<OatQuickMethodHeader*>(
2031        reinterpret_cast<uintptr_t>(quick_oat_code_begin) - sizeof(OatQuickMethodHeader));
2032    if (method->IsNative()) {
2033      if (!Runtime::Current()->GetClassLinker()->IsQuickGenericJniStub(quick_oat_code_begin)) {
2034        DCHECK(method_header->GetNativeGcMap() == nullptr) << PrettyMethod(method);
2035        DCHECK(method_header->GetMappingTable() == nullptr) << PrettyMethod(method);
2036      }
2037      bool first_occurrence;
2038      uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method);
2039      state->ComputeOatSize(quick_oat_code_begin, &first_occurrence);
2040      if (first_occurrence) {
2041        state->stats_.native_to_managed_code_bytes += quick_oat_code_size;
2042      }
2043      if (quick_oat_code_begin !=
2044            method->GetEntryPointFromQuickCompiledCodePtrSize(image_pointer_size)) {
2045        indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code_begin);
2046      }
2047    } else if (method->IsAbstract() || method->IsCalleeSaveMethod() ||
2048      method->IsResolutionMethod() || method->IsImtConflictMethod() ||
2049      method->IsImtUnimplementedMethod() || method->IsClassInitializer()) {
2050    } else {
2051      const DexFile::CodeItem* code_item = method->GetCodeItem();
2052      size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2;
2053      state->stats_.dex_instruction_bytes += dex_instruction_bytes;
2054
2055      bool first_occurrence;
2056      size_t gc_map_bytes = state->ComputeOatSize(
2057          method_header->GetNativeGcMap(), &first_occurrence);
2058      if (first_occurrence) {
2059        state->stats_.gc_map_bytes += gc_map_bytes;
2060      }
2061
2062      size_t pc_mapping_table_bytes = state->ComputeOatSize(
2063          method_header->GetMappingTable(), &first_occurrence);
2064      if (first_occurrence) {
2065        state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes;
2066      }
2067
2068      size_t vmap_table_bytes = 0u;
2069      if (!method_header->IsOptimized()) {
2070        // Method compiled with the optimizing compiler have no vmap table.
2071        vmap_table_bytes = state->ComputeOatSize(
2072            method_header->GetVmapTable(), &first_occurrence);
2073        if (first_occurrence) {
2074          state->stats_.vmap_table_bytes += vmap_table_bytes;
2075        }
2076      }
2077
2078      uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method);
2079      state->ComputeOatSize(quick_oat_code_begin, &first_occurrence);
2080      if (first_occurrence) {
2081        state->stats_.managed_code_bytes += quick_oat_code_size;
2082        if (method->IsConstructor()) {
2083          if (method->IsStatic()) {
2084            state->stats_.class_initializer_code_bytes += quick_oat_code_size;
2085          } else if (dex_instruction_bytes > kLargeConstructorDexBytes) {
2086            state->stats_.large_initializer_code_bytes += quick_oat_code_size;
2087          }
2088        } else if (dex_instruction_bytes > kLargeMethodDexBytes) {
2089          state->stats_.large_method_code_bytes += quick_oat_code_size;
2090        }
2091      }
2092      state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size;
2093
2094      uint32_t method_access_flags = method->GetAccessFlags();
2095
2096      indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end);
2097      indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd AccessFlags=0x%x\n",
2098                                dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes,
2099                                method_access_flags);
2100
2101      size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes +
2102          vmap_table_bytes + quick_oat_code_size + ArtMethod::Size(image_pointer_size);
2103
2104      double expansion =
2105      static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes);
2106      state->stats_.ComputeOutliers(total_size, expansion, method);
2107    }
2108  }
2109
2110  std::set<const void*> already_seen_;
2111  // Compute the size of the given data within the oat file and whether this is the first time
2112  // this data has been requested
2113  size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) {
2114    if (already_seen_.count(oat_data) == 0) {
2115      *first_occurrence = true;
2116      already_seen_.insert(oat_data);
2117    } else {
2118      *first_occurrence = false;
2119    }
2120    return oat_dumper_->ComputeSize(oat_data);
2121  }
2122
2123 public:
2124  struct Stats {
2125    size_t oat_file_bytes;
2126    size_t file_bytes;
2127
2128    size_t header_bytes;
2129    size_t object_bytes;
2130    size_t art_field_bytes;
2131    size_t art_method_bytes;
2132    size_t dex_cache_arrays_bytes;
2133    size_t interned_strings_bytes;
2134    size_t class_table_bytes;
2135    size_t bitmap_bytes;
2136    size_t alignment_bytes;
2137
2138    size_t managed_code_bytes;
2139    size_t managed_code_bytes_ignoring_deduplication;
2140    size_t managed_to_native_code_bytes;
2141    size_t native_to_managed_code_bytes;
2142    size_t class_initializer_code_bytes;
2143    size_t large_initializer_code_bytes;
2144    size_t large_method_code_bytes;
2145
2146    size_t gc_map_bytes;
2147    size_t pc_mapping_table_bytes;
2148    size_t vmap_table_bytes;
2149
2150    size_t dex_instruction_bytes;
2151
2152    std::vector<ArtMethod*> method_outlier;
2153    std::vector<size_t> method_outlier_size;
2154    std::vector<double> method_outlier_expansion;
2155    std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes;
2156
2157    Stats()
2158        : oat_file_bytes(0),
2159          file_bytes(0),
2160          header_bytes(0),
2161          object_bytes(0),
2162          art_field_bytes(0),
2163          art_method_bytes(0),
2164          dex_cache_arrays_bytes(0),
2165          interned_strings_bytes(0),
2166          class_table_bytes(0),
2167          bitmap_bytes(0),
2168          alignment_bytes(0),
2169          managed_code_bytes(0),
2170          managed_code_bytes_ignoring_deduplication(0),
2171          managed_to_native_code_bytes(0),
2172          native_to_managed_code_bytes(0),
2173          class_initializer_code_bytes(0),
2174          large_initializer_code_bytes(0),
2175          large_method_code_bytes(0),
2176          gc_map_bytes(0),
2177          pc_mapping_table_bytes(0),
2178          vmap_table_bytes(0),
2179          dex_instruction_bytes(0) {}
2180
2181    struct SizeAndCount {
2182      SizeAndCount(size_t bytes_in, size_t count_in) : bytes(bytes_in), count(count_in) {}
2183      size_t bytes;
2184      size_t count;
2185    };
2186    typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable;
2187    SizeAndCountTable sizes_and_counts;
2188
2189    void Update(const char* descriptor, size_t object_bytes_in) {
2190      SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor);
2191      if (it != sizes_and_counts.end()) {
2192        it->second.bytes += object_bytes_in;
2193        it->second.count += 1;
2194      } else {
2195        sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes_in, 1));
2196      }
2197    }
2198
2199    double PercentOfOatBytes(size_t size) {
2200      return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100;
2201    }
2202
2203    double PercentOfFileBytes(size_t size) {
2204      return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100;
2205    }
2206
2207    double PercentOfObjectBytes(size_t size) {
2208      return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100;
2209    }
2210
2211    void ComputeOutliers(size_t total_size, double expansion, ArtMethod* method) {
2212      method_outlier_size.push_back(total_size);
2213      method_outlier_expansion.push_back(expansion);
2214      method_outlier.push_back(method);
2215    }
2216
2217    void DumpOutliers(std::ostream& os)
2218        SHARED_REQUIRES(Locks::mutator_lock_) {
2219      size_t sum_of_sizes = 0;
2220      size_t sum_of_sizes_squared = 0;
2221      size_t sum_of_expansion = 0;
2222      size_t sum_of_expansion_squared = 0;
2223      size_t n = method_outlier_size.size();
2224      if (n == 0) {
2225        return;
2226      }
2227      for (size_t i = 0; i < n; i++) {
2228        size_t cur_size = method_outlier_size[i];
2229        sum_of_sizes += cur_size;
2230        sum_of_sizes_squared += cur_size * cur_size;
2231        double cur_expansion = method_outlier_expansion[i];
2232        sum_of_expansion += cur_expansion;
2233        sum_of_expansion_squared += cur_expansion * cur_expansion;
2234      }
2235      size_t size_mean = sum_of_sizes / n;
2236      size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1);
2237      double expansion_mean = sum_of_expansion / n;
2238      double expansion_variance =
2239          (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1);
2240
2241      // Dump methods whose size is a certain number of standard deviations from the mean
2242      size_t dumped_values = 0;
2243      size_t skipped_values = 0;
2244      for (size_t i = 100; i > 0; i--) {  // i is the current number of standard deviations
2245        size_t cur_size_variance = i * i * size_variance;
2246        bool first = true;
2247        for (size_t j = 0; j < n; j++) {
2248          size_t cur_size = method_outlier_size[j];
2249          if (cur_size > size_mean) {
2250            size_t cur_var = cur_size - size_mean;
2251            cur_var = cur_var * cur_var;
2252            if (cur_var > cur_size_variance) {
2253              if (dumped_values > 20) {
2254                if (i == 1) {
2255                  skipped_values++;
2256                } else {
2257                  i = 2;  // jump to counting for 1 standard deviation
2258                  break;
2259                }
2260              } else {
2261                if (first) {
2262                  os << "\nBig methods (size > " << i << " standard deviations the norm):\n";
2263                  first = false;
2264                }
2265                os << PrettyMethod(method_outlier[j]) << " requires storage of "
2266                    << PrettySize(cur_size) << "\n";
2267                method_outlier_size[j] = 0;  // don't consider this method again
2268                dumped_values++;
2269              }
2270            }
2271          }
2272        }
2273      }
2274      if (skipped_values > 0) {
2275        os << "... skipped " << skipped_values
2276           << " methods with size > 1 standard deviation from the norm\n";
2277      }
2278      os << std::flush;
2279
2280      // Dump methods whose expansion is a certain number of standard deviations from the mean
2281      dumped_values = 0;
2282      skipped_values = 0;
2283      for (size_t i = 10; i > 0; i--) {  // i is the current number of standard deviations
2284        double cur_expansion_variance = i * i * expansion_variance;
2285        bool first = true;
2286        for (size_t j = 0; j < n; j++) {
2287          double cur_expansion = method_outlier_expansion[j];
2288          if (cur_expansion > expansion_mean) {
2289            size_t cur_var = cur_expansion - expansion_mean;
2290            cur_var = cur_var * cur_var;
2291            if (cur_var > cur_expansion_variance) {
2292              if (dumped_values > 20) {
2293                if (i == 1) {
2294                  skipped_values++;
2295                } else {
2296                  i = 2;  // jump to counting for 1 standard deviation
2297                  break;
2298                }
2299              } else {
2300                if (first) {
2301                  os << "\nLarge expansion methods (size > " << i
2302                      << " standard deviations the norm):\n";
2303                  first = false;
2304                }
2305                os << PrettyMethod(method_outlier[j]) << " expanded code by "
2306                   << cur_expansion << "\n";
2307                method_outlier_expansion[j] = 0.0;  // don't consider this method again
2308                dumped_values++;
2309              }
2310            }
2311          }
2312        }
2313      }
2314      if (skipped_values > 0) {
2315        os << "... skipped " << skipped_values
2316           << " methods with expansion > 1 standard deviation from the norm\n";
2317      }
2318      os << "\n" << std::flush;
2319    }
2320
2321    void Dump(std::ostream& os, std::ostream& indent_os)
2322        SHARED_REQUIRES(Locks::mutator_lock_) {
2323      {
2324        os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n"
2325           << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n";
2326        indent_os << StringPrintf("header_bytes           =  %8zd (%2.0f%% of art file bytes)\n"
2327                                  "object_bytes           =  %8zd (%2.0f%% of art file bytes)\n"
2328                                  "art_field_bytes        =  %8zd (%2.0f%% of art file bytes)\n"
2329                                  "art_method_bytes       =  %8zd (%2.0f%% of art file bytes)\n"
2330                                  "dex_cache_arrays_bytes =  %8zd (%2.0f%% of art file bytes)\n"
2331                                  "interned_string_bytes  =  %8zd (%2.0f%% of art file bytes)\n"
2332                                  "class_table_bytes      =  %8zd (%2.0f%% of art file bytes)\n"
2333                                  "bitmap_bytes           =  %8zd (%2.0f%% of art file bytes)\n"
2334                                  "alignment_bytes        =  %8zd (%2.0f%% of art file bytes)\n\n",
2335                                  header_bytes, PercentOfFileBytes(header_bytes),
2336                                  object_bytes, PercentOfFileBytes(object_bytes),
2337                                  art_field_bytes, PercentOfFileBytes(art_field_bytes),
2338                                  art_method_bytes, PercentOfFileBytes(art_method_bytes),
2339                                  dex_cache_arrays_bytes,
2340                                  PercentOfFileBytes(dex_cache_arrays_bytes),
2341                                  interned_strings_bytes,
2342                                  PercentOfFileBytes(interned_strings_bytes),
2343                                  class_table_bytes, PercentOfFileBytes(class_table_bytes),
2344                                  bitmap_bytes, PercentOfFileBytes(bitmap_bytes),
2345                                  alignment_bytes, PercentOfFileBytes(alignment_bytes))
2346            << std::flush;
2347        CHECK_EQ(file_bytes,
2348                 header_bytes + object_bytes + art_field_bytes + art_method_bytes +
2349                 dex_cache_arrays_bytes + interned_strings_bytes + class_table_bytes +
2350                 bitmap_bytes + alignment_bytes);
2351      }
2352
2353      os << "object_bytes breakdown:\n";
2354      size_t object_bytes_total = 0;
2355      for (const auto& sizes_and_count : sizes_and_counts) {
2356        const std::string& descriptor(sizes_and_count.first);
2357        double average = static_cast<double>(sizes_and_count.second.bytes) /
2358            static_cast<double>(sizes_and_count.second.count);
2359        double percent = PercentOfObjectBytes(sizes_and_count.second.bytes);
2360        os << StringPrintf("%32s %8zd bytes %6zd instances "
2361                           "(%4.0f bytes/instance) %2.0f%% of object_bytes\n",
2362                           descriptor.c_str(), sizes_and_count.second.bytes,
2363                           sizes_and_count.second.count, average, percent);
2364        object_bytes_total += sizes_and_count.second.bytes;
2365      }
2366      os << "\n" << std::flush;
2367      CHECK_EQ(object_bytes, object_bytes_total);
2368
2369      os << StringPrintf("oat_file_bytes               = %8zd\n"
2370                         "managed_code_bytes           = %8zd (%2.0f%% of oat file bytes)\n"
2371                         "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
2372                         "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n"
2373                         "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
2374                         "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
2375                         "large_method_code_bytes      = %8zd (%2.0f%% of oat file bytes)\n\n",
2376                         oat_file_bytes,
2377                         managed_code_bytes,
2378                         PercentOfOatBytes(managed_code_bytes),
2379                         managed_to_native_code_bytes,
2380                         PercentOfOatBytes(managed_to_native_code_bytes),
2381                         native_to_managed_code_bytes,
2382                         PercentOfOatBytes(native_to_managed_code_bytes),
2383                         class_initializer_code_bytes,
2384                         PercentOfOatBytes(class_initializer_code_bytes),
2385                         large_initializer_code_bytes,
2386                         PercentOfOatBytes(large_initializer_code_bytes),
2387                         large_method_code_bytes,
2388                         PercentOfOatBytes(large_method_code_bytes))
2389            << "DexFile sizes:\n";
2390      for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) {
2391        os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n",
2392                           oat_dex_file_size.first.c_str(), oat_dex_file_size.second,
2393                           PercentOfOatBytes(oat_dex_file_size.second));
2394      }
2395
2396      os << "\n" << StringPrintf("gc_map_bytes           = %7zd (%2.0f%% of oat file bytes)\n"
2397                                 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n"
2398                                 "vmap_table_bytes       = %7zd (%2.0f%% of oat file bytes)\n\n",
2399                                 gc_map_bytes, PercentOfOatBytes(gc_map_bytes),
2400                                 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes),
2401                                 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes))
2402         << std::flush;
2403
2404      os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes)
2405         << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n",
2406                         static_cast<double>(managed_code_bytes) /
2407                             static_cast<double>(dex_instruction_bytes),
2408                         static_cast<double>(managed_code_bytes_ignoring_deduplication) /
2409                             static_cast<double>(dex_instruction_bytes))
2410         << std::flush;
2411
2412      DumpOutliers(os);
2413    }
2414  } stats_;
2415
2416 private:
2417  enum {
2418    // Number of bytes for a constructor to be considered large. Based on the 1000 basic block
2419    // threshold, we assume 2 bytes per instruction and 2 instructions per block.
2420    kLargeConstructorDexBytes = 4000,
2421    // Number of bytes for a method to be considered large. Based on the 4000 basic block
2422    // threshold, we assume 2 bytes per instruction and 2 instructions per block.
2423    kLargeMethodDexBytes = 16000
2424  };
2425
2426  // For performance, use the *os_ directly for anything that doesn't need indentation
2427  // and prepare an indentation stream with default indentation 1.
2428  std::ostream* os_;
2429  VariableIndentationOutputStream vios_;
2430  ScopedIndentation indent1_;
2431
2432  gc::space::ImageSpace& image_space_;
2433  const ImageHeader& image_header_;
2434  std::unique_ptr<OatDumper> oat_dumper_;
2435  OatDumperOptions* oat_dumper_options_;
2436  std::set<mirror::Object*> dex_caches_;
2437
2438  DISALLOW_COPY_AND_ASSIGN(ImageDumper);
2439};
2440
2441static int DumpImage(Runtime* runtime, OatDumperOptions* options, std::ostream* os) {
2442  // Dumping the image, no explicit class loader.
2443  ScopedNullHandle<mirror::ClassLoader> null_class_loader;
2444  options->class_loader_ = &null_class_loader;
2445
2446  ScopedObjectAccess soa(Thread::Current());
2447  gc::Heap* heap = runtime->GetHeap();
2448  std::vector<gc::space::ImageSpace*> image_spaces = heap->GetBootImageSpaces();
2449  CHECK(!image_spaces.empty());
2450  for (gc::space::ImageSpace* image_space : image_spaces) {
2451    const ImageHeader& image_header = image_space->GetImageHeader();
2452    if (!image_header.IsValid()) {
2453      fprintf(stderr, "Invalid image header %s\n", image_space->GetImageLocation().c_str());
2454      return EXIT_FAILURE;
2455    }
2456
2457    ImageDumper image_dumper(os, *image_space, image_header, options);
2458    if (!image_dumper.Dump()) {
2459      return EXIT_FAILURE;
2460    }
2461  }
2462  return EXIT_SUCCESS;
2463}
2464
2465static int DumpOatWithRuntime(Runtime* runtime, OatFile* oat_file, OatDumperOptions* options,
2466                              std::ostream* os) {
2467  CHECK(runtime != nullptr && oat_file != nullptr && options != nullptr);
2468
2469  Thread* self = Thread::Current();
2470  CHECK(self != nullptr);
2471  // Need well-known-classes.
2472  WellKnownClasses::Init(self->GetJniEnv());
2473
2474  // Need to register dex files to get a working dex cache.
2475  ScopedObjectAccess soa(self);
2476  ClassLinker* class_linker = runtime->GetClassLinker();
2477  runtime->GetOatFileManager().RegisterOatFile(std::unique_ptr<const OatFile>(oat_file));
2478  std::vector<const DexFile*> class_path;
2479  for (const OatFile::OatDexFile* odf : oat_file->GetOatDexFiles()) {
2480    std::string error_msg;
2481    const DexFile* const dex_file = OpenDexFile(odf, &error_msg);
2482    CHECK(dex_file != nullptr) << error_msg;
2483    class_linker->RegisterDexFile(*dex_file, runtime->GetLinearAlloc());
2484    class_path.push_back(dex_file);
2485  }
2486
2487  // Need a class loader.
2488  // Fake that we're a compiler.
2489  jobject class_loader = class_linker->CreatePathClassLoader(self, class_path);
2490
2491  // Use the class loader while dumping.
2492  StackHandleScope<1> scope(self);
2493  Handle<mirror::ClassLoader> loader_handle = scope.NewHandle(
2494      soa.Decode<mirror::ClassLoader*>(class_loader));
2495  options->class_loader_ = &loader_handle;
2496
2497  OatDumper oat_dumper(*oat_file, *options);
2498  bool success = oat_dumper.Dump(*os);
2499  return (success) ? EXIT_SUCCESS : EXIT_FAILURE;
2500}
2501
2502static int DumpOatWithoutRuntime(OatFile* oat_file, OatDumperOptions* options, std::ostream* os) {
2503  CHECK(oat_file != nullptr && options != nullptr);
2504  // No image = no class loader.
2505  ScopedNullHandle<mirror::ClassLoader> null_class_loader;
2506  options->class_loader_ = &null_class_loader;
2507
2508  OatDumper oat_dumper(*oat_file, *options);
2509  bool success = oat_dumper.Dump(*os);
2510  return (success) ? EXIT_SUCCESS : EXIT_FAILURE;
2511}
2512
2513static int DumpOat(Runtime* runtime, const char* oat_filename, OatDumperOptions* options,
2514                   std::ostream* os) {
2515  std::string error_msg;
2516  OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, nullptr, nullptr, false,
2517                                    nullptr, &error_msg);
2518  if (oat_file == nullptr) {
2519    fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str());
2520    return EXIT_FAILURE;
2521  }
2522
2523  if (runtime != nullptr) {
2524    return DumpOatWithRuntime(runtime, oat_file, options, os);
2525  } else {
2526    return DumpOatWithoutRuntime(oat_file, options, os);
2527  }
2528}
2529
2530static int SymbolizeOat(const char* oat_filename, std::string& output_name) {
2531  std::string error_msg;
2532  OatFile* oat_file = OatFile::Open(oat_filename, oat_filename, nullptr, nullptr, false,
2533                                    nullptr, &error_msg);
2534  if (oat_file == nullptr) {
2535    fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str());
2536    return EXIT_FAILURE;
2537  }
2538
2539  OatSymbolizer oat_symbolizer(oat_file, output_name);
2540  if (!oat_symbolizer.Symbolize()) {
2541    fprintf(stderr, "Failed to symbolize\n");
2542    return EXIT_FAILURE;
2543  }
2544
2545  return EXIT_SUCCESS;
2546}
2547
2548struct OatdumpArgs : public CmdlineArgs {
2549 protected:
2550  using Base = CmdlineArgs;
2551
2552  virtual ParseStatus ParseCustom(const StringPiece& option,
2553                                  std::string* error_msg) OVERRIDE {
2554    {
2555      ParseStatus base_parse = Base::ParseCustom(option, error_msg);
2556      if (base_parse != kParseUnknownArgument) {
2557        return base_parse;
2558      }
2559    }
2560
2561    if (option.starts_with("--oat-file=")) {
2562      oat_filename_ = option.substr(strlen("--oat-file=")).data();
2563    } else if (option.starts_with("--image=")) {
2564      image_location_ = option.substr(strlen("--image=")).data();
2565    } else if (option =="--dump:raw_mapping_table") {
2566      dump_raw_mapping_table_ = true;
2567    } else if (option == "--dump:raw_gc_map") {
2568      dump_raw_gc_map_ = true;
2569    } else if (option == "--no-dump:vmap") {
2570      dump_vmap_ = false;
2571    } else if (option =="--dump:code_info_stack_maps") {
2572      dump_code_info_stack_maps_ = true;
2573    } else if (option == "--no-disassemble") {
2574      disassemble_code_ = false;
2575    } else if (option.starts_with("--symbolize=")) {
2576      oat_filename_ = option.substr(strlen("--symbolize=")).data();
2577      symbolize_ = true;
2578    } else if (option.starts_with("--class-filter=")) {
2579      class_filter_ = option.substr(strlen("--class-filter=")).data();
2580    } else if (option.starts_with("--method-filter=")) {
2581      method_filter_ = option.substr(strlen("--method-filter=")).data();
2582    } else if (option.starts_with("--list-classes")) {
2583      list_classes_ = true;
2584    } else if (option.starts_with("--list-methods")) {
2585      list_methods_ = true;
2586    } else if (option.starts_with("--export-dex-to=")) {
2587      export_dex_location_ = option.substr(strlen("--export-dex-to=")).data();
2588    } else if (option.starts_with("--addr2instr=")) {
2589      if (!ParseUint(option.substr(strlen("--addr2instr=")).data(), &addr2instr_)) {
2590        *error_msg = "Address conversion failed";
2591        return kParseError;
2592      }
2593    } else {
2594      return kParseUnknownArgument;
2595    }
2596
2597    return kParseOk;
2598  }
2599
2600  virtual ParseStatus ParseChecks(std::string* error_msg) OVERRIDE {
2601    // Infer boot image location from the image location if possible.
2602    if (boot_image_location_ == nullptr) {
2603      boot_image_location_ = image_location_;
2604    }
2605
2606    // Perform the parent checks.
2607    ParseStatus parent_checks = Base::ParseChecks(error_msg);
2608    if (parent_checks != kParseOk) {
2609      return parent_checks;
2610    }
2611
2612    // Perform our own checks.
2613    if (image_location_ == nullptr && oat_filename_ == nullptr) {
2614      *error_msg = "Either --image or --oat-file must be specified";
2615      return kParseError;
2616    } else if (image_location_ != nullptr && oat_filename_ != nullptr) {
2617      *error_msg = "Either --image or --oat-file must be specified but not both";
2618      return kParseError;
2619    }
2620
2621    return kParseOk;
2622  }
2623
2624  virtual std::string GetUsage() const {
2625    std::string usage;
2626
2627    usage +=
2628        "Usage: oatdump [options] ...\n"
2629        "    Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n"
2630        "    Example: adb shell oatdump --image=/system/framework/boot.art\n"
2631        "\n"
2632        // Either oat-file or image is required.
2633        "  --oat-file=<file.oat>: specifies an input oat filename.\n"
2634        "      Example: --oat-file=/system/framework/boot.oat\n"
2635        "\n"
2636        "  --image=<file.art>: specifies an input image location.\n"
2637        "      Example: --image=/system/framework/boot.art\n"
2638        "\n";
2639
2640    usage += Base::GetUsage();
2641
2642    usage +=  // Optional.
2643        "  --dump:raw_mapping_table enables dumping of the mapping table.\n"
2644        "      Example: --dump:raw_mapping_table\n"
2645        "\n"
2646        "  --dump:raw_gc_map enables dumping of the GC map.\n"
2647        "      Example: --dump:raw_gc_map\n"
2648        "\n"
2649        "  --no-dump:vmap may be used to disable vmap dumping.\n"
2650        "      Example: --no-dump:vmap\n"
2651        "\n"
2652        "  --dump:code_info_stack_maps enables dumping of stack maps in CodeInfo sections.\n"
2653        "      Example: --dump:code_info_stack_maps\n"
2654        "\n"
2655        "  --no-disassemble may be used to disable disassembly.\n"
2656        "      Example: --no-disassemble\n"
2657        "\n"
2658        "  --list-classes may be used to list target file classes (can be used with filters).\n"
2659        "      Example: --list-classes\n"
2660        "      Example: --list-classes --class-filter=com.example.foo\n"
2661        "\n"
2662        "  --list-methods may be used to list target file methods (can be used with filters).\n"
2663        "      Example: --list-methods\n"
2664        "      Example: --list-methods --class-filter=com.example --method-filter=foo\n"
2665        "\n"
2666        "  --symbolize=<file.oat>: output a copy of file.oat with elf symbols included.\n"
2667        "      Example: --symbolize=/system/framework/boot.oat\n"
2668        "\n"
2669        "  --class-filter=<class name>: only dumps classes that contain the filter.\n"
2670        "      Example: --class-filter=com.example.foo\n"
2671        "\n"
2672        "  --method-filter=<method name>: only dumps methods that contain the filter.\n"
2673        "      Example: --method-filter=foo\n"
2674        "\n"
2675        "  --export-dex-to=<directory>: may be used to export oat embedded dex files.\n"
2676        "      Example: --export-dex-to=/data/local/tmp\n"
2677        "\n"
2678        "  --addr2instr=<address>: output matching method disassembled code from relative\n"
2679        "                          address (e.g. PC from crash dump)\n"
2680        "      Example: --addr2instr=0x00001a3b\n"
2681        "\n";
2682
2683    return usage;
2684  }
2685
2686 public:
2687  const char* oat_filename_ = nullptr;
2688  const char* class_filter_ = "";
2689  const char* method_filter_ = "";
2690  const char* image_location_ = nullptr;
2691  std::string elf_filename_prefix_;
2692  bool dump_raw_mapping_table_ = false;
2693  bool dump_raw_gc_map_ = false;
2694  bool dump_vmap_ = true;
2695  bool dump_code_info_stack_maps_ = false;
2696  bool disassemble_code_ = true;
2697  bool symbolize_ = false;
2698  bool list_classes_ = false;
2699  bool list_methods_ = false;
2700  uint32_t addr2instr_ = 0;
2701  const char* export_dex_location_ = nullptr;
2702};
2703
2704struct OatdumpMain : public CmdlineMain<OatdumpArgs> {
2705  virtual bool NeedsRuntime() OVERRIDE {
2706    CHECK(args_ != nullptr);
2707
2708    // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping.
2709    bool absolute_addresses = (args_->oat_filename_ == nullptr);
2710
2711    oat_dumper_options_ = std::unique_ptr<OatDumperOptions>(new OatDumperOptions(
2712        args_->dump_raw_mapping_table_,
2713        args_->dump_raw_gc_map_,
2714        args_->dump_vmap_,
2715        args_->dump_code_info_stack_maps_,
2716        args_->disassemble_code_,
2717        absolute_addresses,
2718        args_->class_filter_,
2719        args_->method_filter_,
2720        args_->list_classes_,
2721        args_->list_methods_,
2722        args_->export_dex_location_,
2723        args_->addr2instr_));
2724
2725    return (args_->boot_image_location_ != nullptr || args_->image_location_ != nullptr) &&
2726          !args_->symbolize_;
2727  }
2728
2729  virtual bool ExecuteWithoutRuntime() OVERRIDE {
2730    CHECK(args_ != nullptr);
2731    CHECK(args_->oat_filename_ != nullptr);
2732
2733    MemMap::Init();
2734
2735    if (args_->symbolize_) {
2736      return SymbolizeOat(args_->oat_filename_, args_->output_name_) == EXIT_SUCCESS;
2737    } else {
2738      return DumpOat(nullptr,
2739                     args_->oat_filename_,
2740                     oat_dumper_options_.get(),
2741                     args_->os_) == EXIT_SUCCESS;
2742    }
2743  }
2744
2745  virtual bool ExecuteWithRuntime(Runtime* runtime) {
2746    CHECK(args_ != nullptr);
2747
2748    if (args_->oat_filename_ != nullptr) {
2749      return DumpOat(runtime,
2750                     args_->oat_filename_,
2751                     oat_dumper_options_.get(),
2752                     args_->os_) == EXIT_SUCCESS;
2753    }
2754
2755    return DumpImage(runtime, oat_dumper_options_.get(), args_->os_) == EXIT_SUCCESS;
2756  }
2757
2758  std::unique_ptr<OatDumperOptions> oat_dumper_options_;
2759};
2760
2761}  // namespace art
2762
2763int main(int argc, char** argv) {
2764  art::OatdumpMain main;
2765  return main.Main(argc, argv);
2766}
2767