oatdump.cc revision 61c5ebc6aee2cac1c363de6fbdac25ada1697fdb
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 <string>
23#include <vector>
24
25#include "base/stringpiece.h"
26#include "base/unix_file/fd_file.h"
27#include "class_linker.h"
28#include "class_linker-inl.h"
29#include "dex_file-inl.h"
30#include "dex_instruction.h"
31#include "disassembler.h"
32#include "gc_map.h"
33#include "gc/space/image_space.h"
34#include "gc/space/large_object_space.h"
35#include "gc/space/space-inl.h"
36#include "image.h"
37#include "indenter.h"
38#include "mapping_table.h"
39#include "mirror/art_field-inl.h"
40#include "mirror/art_method-inl.h"
41#include "mirror/array-inl.h"
42#include "mirror/class-inl.h"
43#include "mirror/object-inl.h"
44#include "mirror/object_array-inl.h"
45#include "noop_compiler_callbacks.h"
46#include "oat.h"
47#include "oat_file-inl.h"
48#include "object_utils.h"
49#include "os.h"
50#include "runtime.h"
51#include "safe_map.h"
52#include "scoped_thread_state_change.h"
53#include "thread_list.h"
54#include "verifier/dex_gc_map.h"
55#include "verifier/method_verifier.h"
56#include "vmap_table.h"
57
58namespace art {
59
60static void usage() {
61  fprintf(stderr,
62          "Usage: oatdump [options] ...\n"
63          "    Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n"
64          "    Example: adb shell oatdump --image=/system/framework/boot.art\n"
65          "\n");
66  fprintf(stderr,
67          "  --oat-file=<file.oat>: specifies an input oat filename.\n"
68          "      Example: --oat-file=/system/framework/boot.oat\n"
69          "\n");
70  fprintf(stderr,
71          "  --image=<file.art>: specifies an input image filename.\n"
72          "      Example: --image=/system/framework/boot.art\n"
73          "\n");
74  fprintf(stderr,
75          "  --boot-image=<file.art>: provide the image file for the boot class path.\n"
76          "      Example: --boot-image=/system/framework/boot.art\n"
77          "\n");
78  fprintf(stderr,
79          "  --instruction-set=(arm|arm64|mips|x86|x86_64): for locating the image file based on the image location\n"
80          "      set.\n"
81          "      Example: --instruction-set=x86\n"
82          "      Default: %s\n"
83          "\n",
84          GetInstructionSetString(kRuntimeISA));
85  fprintf(stderr,
86          "  --output=<file> may be used to send the output to a file.\n"
87          "      Example: --output=/tmp/oatdump.txt\n"
88          "\n");
89  fprintf(stderr,
90          "  --dump:[raw_mapping_table|raw_gc_map]\n"
91          "    Example: --dump:raw_gc_map\n"
92          "    Default: neither\n"
93          "\n");
94  exit(EXIT_FAILURE);
95}
96
97const char* image_roots_descriptions_[] = {
98  "kResolutionMethod",
99  "kImtConflictMethod",
100  "kDefaultImt",
101  "kCalleeSaveMethod",
102  "kRefsOnlySaveMethod",
103  "kRefsAndArgsSaveMethod",
104  "kDexCaches",
105  "kClassRoots",
106};
107
108class OatDumper {
109 public:
110  explicit OatDumper(const OatFile& oat_file, bool dump_raw_mapping_table, bool dump_raw_gc_map)
111    : oat_file_(oat_file),
112      oat_dex_files_(oat_file.GetOatDexFiles()),
113      dump_raw_mapping_table_(dump_raw_mapping_table),
114      dump_raw_gc_map_(dump_raw_gc_map),
115      disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet())) {
116    AddAllOffsets();
117  }
118
119  void Dump(std::ostream& os) {
120    const OatHeader& oat_header = oat_file_.GetOatHeader();
121
122    os << "MAGIC:\n";
123    os << oat_header.GetMagic() << "\n\n";
124
125    os << "CHECKSUM:\n";
126    os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum());
127
128    os << "INSTRUCTION SET:\n";
129    os << oat_header.GetInstructionSet() << "\n\n";
130
131    os << "INSTRUCTION SET FEATURES:\n";
132    os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n";
133
134    os << "DEX FILE COUNT:\n";
135    os << oat_header.GetDexFileCount() << "\n\n";
136
137#define DUMP_OAT_HEADER_OFFSET(label, offset) \
138    os << label " OFFSET:\n"; \
139    os << StringPrintf("0x%08x", oat_header.offset()); \
140    if (oat_header.offset() != 0) { \
141      os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \
142    } \
143    os << StringPrintf("\n\n");
144
145    DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset);
146    DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE",
147                           GetInterpreterToInterpreterBridgeOffset);
148    DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE",
149                           GetInterpreterToCompiledCodeBridgeOffset);
150    DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP",
151                           GetJniDlsymLookupOffset);
152    DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE",
153                           GetPortableImtConflictTrampolineOffset);
154    DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE",
155                           GetPortableResolutionTrampolineOffset);
156    DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE",
157                           GetPortableToInterpreterBridgeOffset);
158    DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE",
159                           GetQuickGenericJniTrampolineOffset);
160    DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE",
161                           GetQuickImtConflictTrampolineOffset);
162    DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE",
163                           GetQuickResolutionTrampolineOffset);
164    DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE",
165                           GetQuickToInterpreterBridgeOffset);
166#undef DUMP_OAT_HEADER_OFFSET
167
168    os << "IMAGE FILE LOCATION OAT CHECKSUM:\n";
169    os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum());
170
171    os << "IMAGE FILE LOCATION OAT BEGIN:\n";
172    os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin());
173
174    os << "IMAGE FILE LOCATION:\n";
175    const std::string image_file_location(oat_header.GetImageFileLocation());
176    os << image_file_location;
177    os << "\n\n";
178
179    os << "BEGIN:\n";
180    os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n";
181
182    os << "END:\n";
183    os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n";
184
185    os << std::flush;
186
187    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
188      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
189      CHECK(oat_dex_file != NULL);
190      DumpOatDexFile(os, *oat_dex_file);
191    }
192  }
193
194  size_t ComputeSize(const void* oat_data) {
195    if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() ||
196        reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) {
197      return 0;  // Address not in oat file
198    }
199    uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) -
200                             reinterpret_cast<uintptr_t>(oat_file_.Begin());
201    auto it = offsets_.upper_bound(begin_offset);
202    CHECK(it != offsets_.end());
203    uintptr_t end_offset = *it;
204    return end_offset - begin_offset;
205  }
206
207  InstructionSet GetInstructionSet() {
208    return oat_file_.GetOatHeader().GetInstructionSet();
209  }
210
211  const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
212    MethodHelper mh(m);
213    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
214      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
215      CHECK(oat_dex_file != nullptr);
216      std::string error_msg;
217      std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg));
218      if (dex_file.get() == nullptr) {
219        LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
220            << "': " << error_msg;
221      } else {
222        const DexFile::ClassDef* class_def =
223            dex_file->FindClassDef(mh.GetDeclaringClassDescriptor());
224        if (class_def != NULL) {
225          uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def);
226          const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
227          size_t method_index = m->GetMethodIndex();
228          return oat_class.GetOatMethod(method_index).GetQuickCode();
229        }
230      }
231    }
232    return NULL;
233  }
234
235 private:
236  void AddAllOffsets() {
237    // We don't know the length of the code for each method, but we need to know where to stop
238    // when disassembling. What we do know is that a region of code will be followed by some other
239    // region, so if we keep a sorted sequence of the start of each region, we can infer the length
240    // of a piece of code by using upper_bound to find the start of the next region.
241    for (size_t i = 0; i < oat_dex_files_.size(); i++) {
242      const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i];
243      CHECK(oat_dex_file != NULL);
244      std::string error_msg;
245      std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg));
246      if (dex_file.get() == nullptr) {
247        LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation()
248            << "': " << error_msg;
249        continue;
250      }
251      offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader()));
252      for (size_t class_def_index = 0;
253           class_def_index < dex_file->NumClassDefs();
254           class_def_index++) {
255        const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index);
256        const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index);
257        const byte* class_data = dex_file->GetClassData(class_def);
258        if (class_data != NULL) {
259          ClassDataItemIterator it(*dex_file, class_data);
260          SkipAllFields(it);
261          uint32_t class_method_index = 0;
262          while (it.HasNextDirectMethod()) {
263            AddOffsets(oat_class.GetOatMethod(class_method_index++));
264            it.Next();
265          }
266          while (it.HasNextVirtualMethod()) {
267            AddOffsets(oat_class.GetOatMethod(class_method_index++));
268            it.Next();
269          }
270        }
271      }
272    }
273
274    // If the last thing in the file is code for a method, there won't be an offset for the "next"
275    // thing. Instead of having a special case in the upper_bound code, let's just add an entry
276    // for the end of the file.
277    offsets_.insert(oat_file_.Size());
278  }
279
280  void AddOffsets(const OatFile::OatMethod& oat_method) {
281    uint32_t code_offset = oat_method.GetCodeOffset();
282    if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) {
283      code_offset &= ~0x1;
284    }
285    offsets_.insert(code_offset);
286    offsets_.insert(oat_method.GetMappingTableOffset());
287    offsets_.insert(oat_method.GetVmapTableOffset());
288    offsets_.insert(oat_method.GetNativeGcMapOffset());
289  }
290
291  void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) {
292    os << "OAT DEX FILE:\n";
293    os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str());
294    os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum());
295
296    // Create the verifier early.
297
298    std::string error_msg;
299    std::unique_ptr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg));
300    if (dex_file.get() == NULL) {
301      os << "NOT FOUND: " << error_msg << "\n\n";
302      return;
303    }
304    for (size_t class_def_index = 0;
305         class_def_index < dex_file->NumClassDefs();
306         class_def_index++) {
307      const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index);
308      const char* descriptor = dex_file->GetClassDescriptor(class_def);
309      const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index);
310      os << StringPrintf("%zd: %s (type_idx=%d)", class_def_index, descriptor, class_def.class_idx_)
311         << " (" << oat_class.GetStatus() << ")"
312         << " (" << oat_class.GetType() << ")\n";
313      // TODO: include bitmap here if type is kOatClassSomeCompiled?
314      Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
315      std::ostream indented_os(&indent_filter);
316      DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def);
317    }
318
319    os << std::flush;
320  }
321
322  static void SkipAllFields(ClassDataItemIterator& it) {
323    while (it.HasNextStaticField()) {
324      it.Next();
325    }
326    while (it.HasNextInstanceField()) {
327      it.Next();
328    }
329  }
330
331  void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file,
332                    const DexFile::ClassDef& class_def) {
333    const byte* class_data = dex_file.GetClassData(class_def);
334    if (class_data == NULL) {  // empty class such as a marker interface?
335      return;
336    }
337    ClassDataItemIterator it(dex_file, class_data);
338    SkipAllFields(it);
339    uint32_t class_method_idx = 0;
340    while (it.HasNextDirectMethod()) {
341      const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx);
342      DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file,
343                    it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags());
344      class_method_idx++;
345      it.Next();
346    }
347    while (it.HasNextVirtualMethod()) {
348      const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx);
349      DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file,
350                    it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags());
351      class_method_idx++;
352      it.Next();
353    }
354    DCHECK(!it.HasNext());
355    os << std::flush;
356  }
357
358  void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def,
359                     uint32_t class_method_index,
360                     const OatFile::OatMethod& oat_method, const DexFile& dex_file,
361                     uint32_t dex_method_idx, const DexFile::CodeItem* code_item,
362                     uint32_t method_access_flags) {
363    os << StringPrintf("%d: %s (dex_method_idx=%d)\n",
364                       class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(),
365                       dex_method_idx);
366    Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
367    std::unique_ptr<std::ostream> indent1_os(new std::ostream(&indent1_filter));
368    Indenter indent2_filter(indent1_os->rdbuf(), kIndentChar, kIndentBy1Count);
369    std::unique_ptr<std::ostream> indent2_os(new std::ostream(&indent2_filter));
370    {
371      *indent1_os << "DEX CODE:\n";
372      DumpDexCode(*indent2_os, dex_file, code_item);
373    }
374    if (Runtime::Current() != NULL) {
375      *indent1_os << "VERIFIER TYPE ANALYSIS:\n";
376      DumpVerifier(*indent2_os, dex_method_idx, &dex_file, class_def, code_item,
377                   method_access_flags);
378    }
379    {
380      *indent1_os << "OAT DATA:\n";
381
382      *indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes());
383      *indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask());
384      DumpSpillMask(*indent2_os, oat_method.GetCoreSpillMask(), false);
385      *indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask());
386      DumpSpillMask(*indent2_os, oat_method.GetFpSpillMask(), true);
387      *indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n",
388                                  oat_method.GetVmapTable(), oat_method.GetVmapTableOffset());
389      DumpVmap(*indent2_os, oat_method);
390      *indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n",
391                                  oat_method.GetMappingTable(), oat_method.GetMappingTableOffset());
392      if (dump_raw_mapping_table_) {
393        Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count);
394        std::ostream indent3_os(&indent3_filter);
395        DumpMappingTable(indent3_os, oat_method);
396      }
397      *indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n",
398                                  oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset());
399      if (dump_raw_gc_map_) {
400        Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count);
401        std::ostream indent3_os(&indent3_filter);
402        DumpGcMap(indent3_os, oat_method, code_item);
403      }
404    }
405    {
406      const void* code = oat_method.GetQuickCode();
407      uint32_t code_size = oat_method.GetQuickCodeSize();
408      if (code == nullptr) {
409        code = oat_method.GetPortableCode();
410        code_size = oat_method.GetPortableCodeSize();
411      }
412      *indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n",
413                                 code,
414                                 oat_method.GetCodeOffset(),
415                                 code_size,
416                                 code != nullptr ? "..." : "");
417
418      Runtime* runtime = Runtime::Current();
419      if (runtime != nullptr) {
420        ScopedObjectAccess soa(Thread::Current());
421        StackHandleScope<1> hs(soa.Self());
422        Handle<mirror::DexCache> dex_cache(
423            hs.NewHandle(runtime->GetClassLinker()->FindDexCache(dex_file)));
424        NullHandle<mirror::ClassLoader> class_loader;
425        verifier::MethodVerifier verifier(&dex_file, &dex_cache, &class_loader, &class_def,
426                                          code_item, dex_method_idx, nullptr, method_access_flags,
427                                          true, true, true);
428        verifier.Verify();
429        DumpCode(*indent2_os, &verifier, oat_method, code_item);
430      } else {
431        DumpCode(*indent2_os, nullptr, oat_method, code_item);
432      }
433    }
434  }
435
436  void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) {
437    if (spill_mask == 0) {
438      return;
439    }
440    os << "(";
441    for (size_t i = 0; i < 32; i++) {
442      if ((spill_mask & (1 << i)) != 0) {
443        if (is_float) {
444          os << "fr" << i;
445        } else {
446          os << "r" << i;
447        }
448        spill_mask ^= 1 << i;  // clear bit
449        if (spill_mask != 0) {
450          os << ", ";
451        } else {
452          break;
453        }
454      }
455    }
456    os << ")";
457  }
458
459  void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) {
460    const uint8_t* raw_table = oat_method.GetVmapTable();
461    if (raw_table != NULL) {
462      const VmapTable vmap_table(raw_table);
463      bool first = true;
464      bool processing_fp = false;
465      uint32_t spill_mask = oat_method.GetCoreSpillMask();
466      for (size_t i = 0; i < vmap_table.Size(); i++) {
467        uint16_t dex_reg = vmap_table[i];
468        uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i,
469                                                      processing_fp ? kFloatVReg : kIntVReg);
470        os << (first ? "v" : ", v")  << dex_reg;
471        if (!processing_fp) {
472          os << "/r" << cpu_reg;
473        } else {
474          os << "/fr" << cpu_reg;
475        }
476        first = false;
477        if (!processing_fp && dex_reg == 0xFFFF) {
478          processing_fp = true;
479          spill_mask = oat_method.GetFpSpillMask();
480        }
481      }
482      os << "\n";
483    }
484  }
485
486  void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method,
487                    const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) {
488    const uint8_t* raw_table = oat_method.GetVmapTable();
489    if (raw_table != NULL) {
490      const VmapTable vmap_table(raw_table);
491      uint32_t vmap_offset;
492      if (vmap_table.IsInContext(reg, kind, &vmap_offset)) {
493        bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg);
494        uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask()
495                                       : oat_method.GetCoreSpillMask();
496        os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind);
497      } else {
498        uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(),
499                                                      oat_method.GetFpSpillMask(),
500                                                      oat_method.GetFrameSizeInBytes(), reg,
501                                                      GetInstructionSet());
502        os << "[sp + #" << offset << "]";
503      }
504    }
505  }
506
507  void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method,
508                          const DexFile::CodeItem* code_item,
509                          size_t num_regs, const uint8_t* reg_bitmap) {
510    bool first = true;
511    for (size_t reg = 0; reg < num_regs; reg++) {
512      if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) {
513        if (first) {
514          os << "  v" << reg << " (";
515          DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
516          os << ")";
517          first = false;
518        } else {
519          os << ", v" << reg << " (";
520          DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
521          os << ")";
522        }
523      }
524    }
525    if (first) {
526      os << "No registers in GC map\n";
527    } else {
528      os << "\n";
529    }
530  }
531  void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method,
532                 const DexFile::CodeItem* code_item) {
533    const uint8_t* gc_map_raw = oat_method.GetNativeGcMap();
534    if (gc_map_raw == nullptr) {
535      return;  // No GC map.
536    }
537    const void* quick_code = oat_method.GetQuickCode();
538    if (quick_code != nullptr) {
539      NativePcOffsetToReferenceMap map(gc_map_raw);
540      for (size_t entry = 0; entry < map.NumEntries(); entry++) {
541        const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) +
542            map.GetNativePcOffset(entry);
543        os << StringPrintf("%p", native_pc);
544        DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry));
545      }
546    } else {
547      const void* portable_code = oat_method.GetPortableCode();
548      CHECK(portable_code != nullptr);
549      verifier::DexPcToReferenceMap map(gc_map_raw);
550      for (size_t entry = 0; entry < map.NumEntries(); entry++) {
551        uint32_t dex_pc = map.GetDexPc(entry);
552        os << StringPrintf("0x%08x", dex_pc);
553        DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry));
554      }
555    }
556  }
557
558  void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) {
559    const void* quick_code = oat_method.GetQuickCode();
560    if (quick_code == nullptr) {
561      return;
562    }
563    MappingTable table(oat_method.GetMappingTable());
564    if (table.TotalSize() != 0) {
565      Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
566      std::ostream indent_os(&indent_filter);
567      if (table.PcToDexSize() != 0) {
568        typedef MappingTable::PcToDexIterator It;
569        os << "suspend point mappings {\n";
570        for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) {
571          indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc());
572        }
573        os << "}\n";
574      }
575      if (table.DexToPcSize() != 0) {
576        typedef MappingTable::DexToPcIterator It;
577        os << "catch entry mappings {\n";
578        for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) {
579          indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc());
580        }
581        os << "}\n";
582      }
583    }
584  }
585
586  uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method,
587                               size_t offset, bool suspend_point_mapping) {
588    MappingTable table(oat_method.GetMappingTable());
589    if (suspend_point_mapping && table.PcToDexSize() > 0) {
590      typedef MappingTable::PcToDexIterator It;
591      for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) {
592        if (offset == cur.NativePcOffset()) {
593          os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc());
594          return cur.DexPc();
595        }
596      }
597    } else if (!suspend_point_mapping && table.DexToPcSize() > 0) {
598      typedef MappingTable::DexToPcIterator It;
599      for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) {
600        if (offset == cur.NativePcOffset()) {
601          os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc());
602          return cur.DexPc();
603        }
604      }
605    }
606    return DexFile::kDexNoIndex;
607  }
608
609  void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method,
610                                 const DexFile::CodeItem* code_item, size_t native_pc_offset) {
611    const uint8_t* gc_map_raw = oat_method.GetNativeGcMap();
612    if (gc_map_raw != NULL) {
613      NativePcOffsetToReferenceMap map(gc_map_raw);
614      if (map.HasEntry(native_pc_offset)) {
615        size_t num_regs = map.RegWidth() * 8;
616        const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset);
617        bool first = true;
618        for (size_t reg = 0; reg < num_regs; reg++) {
619          if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) {
620            if (first) {
621              os << "GC map objects:  v" << reg << " (";
622              DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
623              os << ")";
624              first = false;
625            } else {
626              os << ", v" << reg << " (";
627              DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg);
628              os << ")";
629            }
630          }
631        }
632        if (!first) {
633          os << "\n";
634        }
635      }
636    }
637  }
638
639  void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier,
640                        const OatFile::OatMethod& oat_method,
641                        const DexFile::CodeItem* code_item, uint32_t dex_pc) {
642    DCHECK(verifier != nullptr);
643    std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc);
644    bool first = true;
645    for (size_t reg = 0; reg < code_item->registers_size_; reg++) {
646      VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2));
647      if (kind != kUndefined) {
648        if (first) {
649          os << "VRegs:  v";
650          first = false;
651        } else {
652          os << ", v";
653        }
654        os << reg << " (";
655        switch (kind) {
656          case kImpreciseConstant:
657            os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", ";
658            DescribeVReg(os, oat_method, code_item, reg, kind);
659            break;
660          case kConstant:
661            os << "Constant: " << kinds.at((reg * 2) + 1);
662            break;
663          default:
664            DescribeVReg(os, oat_method, code_item, reg, kind);
665            break;
666        }
667        os << ")";
668      }
669    }
670    if (!first) {
671      os << "\n";
672    }
673  }
674
675
676  void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) {
677    if (code_item != NULL) {
678      size_t i = 0;
679      while (i < code_item->insns_size_in_code_units_) {
680        const Instruction* instruction = Instruction::At(&code_item->insns_[i]);
681        os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str());
682        i += instruction->SizeInCodeUnits();
683      }
684    }
685  }
686
687  void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file,
688                    const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item,
689                    uint32_t method_access_flags) {
690    if ((method_access_flags & kAccNative) == 0) {
691      ScopedObjectAccess soa(Thread::Current());
692      StackHandleScope<2> hs(soa.Self());
693      Handle<mirror::DexCache> dex_cache(
694          hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file)));
695      auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr));
696      verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache,
697                                                    class_loader, &class_def, code_item, nullptr,
698                                                    method_access_flags);
699    }
700  }
701
702  void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier,
703                const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item) {
704    const void* portable_code = oat_method.GetPortableCode();
705    const void* quick_code = oat_method.GetQuickCode();
706
707    size_t code_size = oat_method.GetQuickCodeSize();
708    if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) {
709      os << "NO CODE!\n";
710      return;
711    } else if (quick_code != nullptr) {
712      const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code);
713      size_t offset = 0;
714      while (offset < code_size) {
715        DumpMappingAtOffset(os, oat_method, offset, false);
716        offset += disassembler_->Dump(os, quick_native_pc + offset);
717        uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true);
718        if (dex_pc != DexFile::kDexNoIndex) {
719          DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset);
720          if (verifier != nullptr) {
721            DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc);
722          }
723        }
724      }
725    } else {
726      CHECK(portable_code != nullptr);
727      CHECK_EQ(code_size, 0U);  // TODO: disassembly of portable is currently not supported.
728    }
729  }
730
731  const OatFile& oat_file_;
732  std::vector<const OatFile::OatDexFile*> oat_dex_files_;
733  bool dump_raw_mapping_table_;
734  bool dump_raw_gc_map_;
735  std::set<uintptr_t> offsets_;
736  std::unique_ptr<Disassembler> disassembler_;
737};
738
739class ImageDumper {
740 public:
741  explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space,
742                       const ImageHeader& image_header, bool dump_raw_mapping_table,
743                       bool dump_raw_gc_map)
744      : os_(os), image_space_(image_space), image_header_(image_header),
745        dump_raw_mapping_table_(dump_raw_mapping_table),
746        dump_raw_gc_map_(dump_raw_gc_map) {}
747
748  void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
749    std::ostream& os = *os_;
750    os << "MAGIC: " << image_header_.GetMagic() << "\n\n";
751
752    os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n";
753
754    os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset())
755       << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n";
756
757    os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum());
758
759    os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n";
760
761    os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n";
762
763    os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n";
764
765    os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n";
766
767    {
768      os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n";
769      Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
770      std::ostream indent1_os(&indent1_filter);
771      CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax));
772      for (int i = 0; i < ImageHeader::kImageRootsMax; i++) {
773        ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i);
774        const char* image_root_description = image_roots_descriptions_[i];
775        mirror::Object* image_root_object = image_header_.GetImageRoot(image_root);
776        indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object);
777        if (image_root_object->IsObjectArray()) {
778          Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count);
779          std::ostream indent2_os(&indent2_filter);
780          mirror::ObjectArray<mirror::Object>* image_root_object_array
781              = image_root_object->AsObjectArray<mirror::Object>();
782          for (int i = 0; i < image_root_object_array->GetLength(); i++) {
783            mirror::Object* value = image_root_object_array->Get(i);
784            size_t run = 0;
785            for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) {
786              if (value == image_root_object_array->Get(j)) {
787                run++;
788              } else {
789                break;
790              }
791            }
792            if (run == 0) {
793              indent2_os << StringPrintf("%d: ", i);
794            } else {
795              indent2_os << StringPrintf("%d to %zd: ", i, i + run);
796              i = i + run;
797            }
798            if (value != NULL) {
799              PrettyObjectValue(indent2_os, value->GetClass(), value);
800            } else {
801              indent2_os << i << ": null\n";
802            }
803          }
804        }
805      }
806    }
807    os << "\n";
808
809    ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
810    std::string image_filename = image_space_.GetImageFilename();
811    std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename);
812    os << "OAT LOCATION: " << oat_location;
813    os << "\n";
814    std::string error_msg;
815    const OatFile* oat_file = class_linker->FindOatFileFromOatLocation(oat_location, &error_msg);
816    if (oat_file == NULL) {
817      os << "NOT FOUND: " << error_msg << "\n";
818      return;
819    }
820    os << "\n";
821
822    stats_.oat_file_bytes = oat_file->Size();
823
824    oat_dumper_.reset(new OatDumper(*oat_file, dump_raw_mapping_table_,
825        dump_raw_gc_map_));
826
827    for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) {
828      CHECK(oat_dex_file != NULL);
829      stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(),
830                                                         oat_dex_file->FileSize()));
831    }
832
833    os << "OBJECTS:\n" << std::flush;
834
835    // Loop through all the image spaces and dump their objects.
836    gc::Heap* heap = Runtime::Current()->GetHeap();
837    const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces();
838    Thread* self = Thread::Current();
839    {
840      {
841        WriterMutexLock mu(self, *Locks::heap_bitmap_lock_);
842        heap->FlushAllocStack();
843      }
844      // Since FlushAllocStack() above resets the (active) allocation
845      // stack. Need to revoke the thread-local allocation stacks that
846      // point into it.
847      {
848        self->TransitionFromRunnableToSuspended(kNative);
849        ThreadList* thread_list = Runtime::Current()->GetThreadList();
850        thread_list->SuspendAll();
851        heap->RevokeAllThreadLocalAllocationStacks(self);
852        thread_list->ResumeAll();
853        self->TransitionFromSuspendedToRunnable();
854      }
855    }
856    {
857      std::ostream* saved_os = os_;
858      Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
859      std::ostream indent_os(&indent_filter);
860      os_ = &indent_os;
861      ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_);
862      for (const auto& space : spaces) {
863        if (space->IsImageSpace()) {
864          gc::space::ImageSpace* image_space = space->AsImageSpace();
865          image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this);
866          indent_os << "\n";
867        }
868      }
869      // Dump the large objects separately.
870      heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this);
871      indent_os << "\n";
872      os_ = saved_os;
873    }
874    os << "STATS:\n" << std::flush;
875    std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str()));
876    if (file.get() == NULL) {
877      LOG(WARNING) << "Failed to find image in " << image_filename;
878    }
879    if (file.get() != NULL) {
880      stats_.file_bytes = file->GetLength();
881    }
882    size_t header_bytes = sizeof(ImageHeader);
883    stats_.header_bytes = header_bytes;
884    size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes;
885    stats_.alignment_bytes += alignment_bytes;
886    stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize();
887    stats_.bitmap_bytes += image_header_.GetImageBitmapSize();
888    stats_.Dump(os);
889    os << "\n";
890
891    os << std::flush;
892
893    oat_dumper_->Dump(os);
894  }
895
896 private:
897  static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value)
898      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
899    CHECK(type != NULL);
900    if (value == NULL) {
901      os << StringPrintf("null   %s\n", PrettyDescriptor(type).c_str());
902    } else if (type->IsStringClass()) {
903      mirror::String* string = value->AsString();
904      os << StringPrintf("%p   String: %s\n", string,
905                         PrintableString(string->ToModifiedUtf8()).c_str());
906    } else if (type->IsClassClass()) {
907      mirror::Class* klass = value->AsClass();
908      os << StringPrintf("%p   Class: %s\n", klass, PrettyDescriptor(klass).c_str());
909    } else if (type->IsArtFieldClass()) {
910      mirror::ArtField* field = value->AsArtField();
911      os << StringPrintf("%p   Field: %s\n", field, PrettyField(field).c_str());
912    } else if (type->IsArtMethodClass()) {
913      mirror::ArtMethod* method = value->AsArtMethod();
914      os << StringPrintf("%p   Method: %s\n", method, PrettyMethod(method).c_str());
915    } else {
916      os << StringPrintf("%p   %s\n", value, PrettyDescriptor(type).c_str());
917    }
918  }
919
920  static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj)
921      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
922    const char* descriptor = field->GetTypeDescriptor();
923    os << StringPrintf("%s: ", field->GetName());
924    if (descriptor[0] != 'L' && descriptor[0] != '[') {
925      StackHandleScope<1> hs(Thread::Current());
926      FieldHelper fh(hs.NewHandle(field));
927      mirror::Class* type = fh.GetType();
928      if (type->IsPrimitiveLong()) {
929        os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj));
930      } else if (type->IsPrimitiveDouble()) {
931        os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj));
932      } else if (type->IsPrimitiveFloat()) {
933        os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj));
934      } else {
935        DCHECK(type->IsPrimitive());
936        os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj));
937      }
938    } else {
939      // Get the value, don't compute the type unless it is non-null as we don't want
940      // to cause class loading.
941      mirror::Object* value = field->GetObj(obj);
942      if (value == NULL) {
943        os << StringPrintf("null   %s\n", PrettyDescriptor(descriptor).c_str());
944      } else {
945        // Grab the field type without causing resolution.
946        StackHandleScope<1> hs(Thread::Current());
947        FieldHelper fh(hs.NewHandle(field));
948        mirror::Class* field_type = fh.GetType(false);
949        if (field_type != NULL) {
950          PrettyObjectValue(os, field_type, value);
951        } else {
952          os << StringPrintf("%p   %s\n", value, PrettyDescriptor(descriptor).c_str());
953        }
954      }
955    }
956  }
957
958  static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass)
959      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
960    mirror::Class* super = klass->GetSuperClass();
961    if (super != NULL) {
962      DumpFields(os, obj, super);
963    }
964    mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields();
965    if (fields != NULL) {
966      for (int32_t i = 0; i < fields->GetLength(); i++) {
967        mirror::ArtField* field = fields->Get(i);
968        PrintField(os, field, obj);
969      }
970    }
971  }
972
973  bool InDumpSpace(const mirror::Object* object) {
974    return image_space_.Contains(object);
975  }
976
977  const void* GetQuickOatCodeBegin(mirror::ArtMethod* m)
978      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
979    const void* quick_code = m->GetEntryPointFromQuickCompiledCode();
980    if (quick_code == GetQuickResolutionTrampoline(Runtime::Current()->GetClassLinker())) {
981      quick_code = oat_dumper_->GetQuickOatCode(m);
982    }
983    if (oat_dumper_->GetInstructionSet() == kThumb2) {
984      quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1);
985    }
986    return quick_code;
987  }
988
989  uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m)
990      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
991    const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m));
992    if (oat_code_begin == nullptr) {
993      return 0;
994    }
995    return oat_code_begin[-1];
996  }
997
998  const void* GetQuickOatCodeEnd(mirror::ArtMethod* m)
999      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1000    const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m));
1001    if (oat_code_begin == NULL) {
1002      return NULL;
1003    }
1004    return oat_code_begin + GetQuickOatCodeSize(m);
1005  }
1006
1007  static void Callback(mirror::Object* obj, void* arg)
1008      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1009    DCHECK(obj != NULL);
1010    DCHECK(arg != NULL);
1011    ImageDumper* state = reinterpret_cast<ImageDumper*>(arg);
1012    if (!state->InDumpSpace(obj)) {
1013      return;
1014    }
1015
1016    size_t object_bytes = obj->SizeOf();
1017    size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes;
1018    state->stats_.object_bytes += object_bytes;
1019    state->stats_.alignment_bytes += alignment_bytes;
1020
1021    std::ostream& os = *state->os_;
1022    mirror::Class* obj_class = obj->GetClass();
1023    if (obj_class->IsArrayClass()) {
1024      os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(),
1025                         obj->AsArray()->GetLength());
1026    } else if (obj->IsClass()) {
1027      mirror::Class* klass = obj->AsClass();
1028      os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str())
1029         << klass->GetStatus() << ")\n";
1030    } else if (obj->IsArtField()) {
1031      os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj,
1032                         PrettyField(obj->AsArtField()).c_str());
1033    } else if (obj->IsArtMethod()) {
1034      os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj,
1035                         PrettyMethod(obj->AsArtMethod()).c_str());
1036    } else if (obj_class->IsStringClass()) {
1037      os << StringPrintf("%p: java.lang.String %s\n", obj,
1038                         PrintableString(obj->AsString()->ToModifiedUtf8()).c_str());
1039    } else {
1040      os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str());
1041    }
1042    Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
1043    std::ostream indent_os(&indent_filter);
1044    DumpFields(indent_os, obj, obj_class);
1045    if (obj->IsObjectArray()) {
1046      mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>();
1047      int32_t length = obj_array->GetLength();
1048      for (int32_t i = 0; i < length; i++) {
1049        mirror::Object* value = obj_array->Get(i);
1050        size_t run = 0;
1051        for (int32_t j = i + 1; j < length; j++) {
1052          if (value == obj_array->Get(j)) {
1053            run++;
1054          } else {
1055            break;
1056          }
1057        }
1058        if (run == 0) {
1059          indent_os << StringPrintf("%d: ", i);
1060        } else {
1061          indent_os << StringPrintf("%d to %zd: ", i, i + run);
1062          i = i + run;
1063        }
1064        mirror::Class* value_class =
1065            (value == NULL) ? obj_class->GetComponentType() : value->GetClass();
1066        PrettyObjectValue(indent_os, value_class, value);
1067      }
1068    } else if (obj->IsClass()) {
1069      mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields();
1070      if (sfields != NULL) {
1071        indent_os << "STATICS:\n";
1072        Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count);
1073        std::ostream indent2_os(&indent2_filter);
1074        for (int32_t i = 0; i < sfields->GetLength(); i++) {
1075          mirror::ArtField* field = sfields->Get(i);
1076          PrintField(indent2_os, field, field->GetDeclaringClass());
1077        }
1078      }
1079    } else if (obj->IsArtMethod()) {
1080      mirror::ArtMethod* method = obj->AsArtMethod();
1081      if (method->IsNative()) {
1082        // TODO: portable dumping.
1083        DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method);
1084        DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method);
1085        bool first_occurrence;
1086        const void* quick_oat_code = state->GetQuickOatCodeBegin(method);
1087        uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method);
1088        state->ComputeOatSize(quick_oat_code, &first_occurrence);
1089        if (first_occurrence) {
1090          state->stats_.native_to_managed_code_bytes += quick_oat_code_size;
1091        }
1092        if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) {
1093          indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code);
1094        }
1095      } else if (method->IsAbstract() || method->IsCalleeSaveMethod() ||
1096          method->IsResolutionMethod() || method->IsImtConflictMethod() ||
1097          MethodHelper(method).IsClassInitializer()) {
1098        DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method);
1099        DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method);
1100      } else {
1101        const DexFile::CodeItem* code_item = MethodHelper(method).GetCodeItem();
1102        size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2;
1103        state->stats_.dex_instruction_bytes += dex_instruction_bytes;
1104
1105        bool first_occurrence;
1106        size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence);
1107        if (first_occurrence) {
1108          state->stats_.gc_map_bytes += gc_map_bytes;
1109        }
1110
1111        size_t pc_mapping_table_bytes =
1112            state->ComputeOatSize(method->GetMappingTable(), &first_occurrence);
1113        if (first_occurrence) {
1114          state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes;
1115        }
1116
1117        size_t vmap_table_bytes =
1118            state->ComputeOatSize(method->GetVmapTable(), &first_occurrence);
1119        if (first_occurrence) {
1120          state->stats_.vmap_table_bytes += vmap_table_bytes;
1121        }
1122
1123        // TODO: portable dumping.
1124        const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method);
1125        const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method);
1126        uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method);
1127        state->ComputeOatSize(quick_oat_code_begin, &first_occurrence);
1128        if (first_occurrence) {
1129          state->stats_.managed_code_bytes += quick_oat_code_size;
1130          if (method->IsConstructor()) {
1131            if (method->IsStatic()) {
1132              state->stats_.class_initializer_code_bytes += quick_oat_code_size;
1133            } else if (dex_instruction_bytes > kLargeConstructorDexBytes) {
1134              state->stats_.large_initializer_code_bytes += quick_oat_code_size;
1135            }
1136          } else if (dex_instruction_bytes > kLargeMethodDexBytes) {
1137            state->stats_.large_method_code_bytes += quick_oat_code_size;
1138          }
1139        }
1140        state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size;
1141
1142        indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end);
1143        indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n",
1144                                  dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes);
1145
1146        size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes +
1147            vmap_table_bytes + quick_oat_code_size + object_bytes;
1148
1149        double expansion =
1150            static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes);
1151        state->stats_.ComputeOutliers(total_size, expansion, method);
1152      }
1153    }
1154    state->stats_.Update(obj_class->GetDescriptor().c_str(), object_bytes);
1155  }
1156
1157  std::set<const void*> already_seen_;
1158  // Compute the size of the given data within the oat file and whether this is the first time
1159  // this data has been requested
1160  size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) {
1161    if (already_seen_.count(oat_data) == 0) {
1162      *first_occurrence = true;
1163      already_seen_.insert(oat_data);
1164    } else {
1165      *first_occurrence = false;
1166    }
1167    return oat_dumper_->ComputeSize(oat_data);
1168  }
1169
1170 public:
1171  struct Stats {
1172    size_t oat_file_bytes;
1173    size_t file_bytes;
1174
1175    size_t header_bytes;
1176    size_t object_bytes;
1177    size_t bitmap_bytes;
1178    size_t alignment_bytes;
1179
1180    size_t managed_code_bytes;
1181    size_t managed_code_bytes_ignoring_deduplication;
1182    size_t managed_to_native_code_bytes;
1183    size_t native_to_managed_code_bytes;
1184    size_t class_initializer_code_bytes;
1185    size_t large_initializer_code_bytes;
1186    size_t large_method_code_bytes;
1187
1188    size_t gc_map_bytes;
1189    size_t pc_mapping_table_bytes;
1190    size_t vmap_table_bytes;
1191
1192    size_t dex_instruction_bytes;
1193
1194    std::vector<mirror::ArtMethod*> method_outlier;
1195    std::vector<size_t> method_outlier_size;
1196    std::vector<double> method_outlier_expansion;
1197    std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes;
1198
1199    explicit Stats()
1200        : oat_file_bytes(0),
1201          file_bytes(0),
1202          header_bytes(0),
1203          object_bytes(0),
1204          bitmap_bytes(0),
1205          alignment_bytes(0),
1206          managed_code_bytes(0),
1207          managed_code_bytes_ignoring_deduplication(0),
1208          managed_to_native_code_bytes(0),
1209          native_to_managed_code_bytes(0),
1210          class_initializer_code_bytes(0),
1211          large_initializer_code_bytes(0),
1212          large_method_code_bytes(0),
1213          gc_map_bytes(0),
1214          pc_mapping_table_bytes(0),
1215          vmap_table_bytes(0),
1216          dex_instruction_bytes(0) {}
1217
1218    struct SizeAndCount {
1219      SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {}
1220      size_t bytes;
1221      size_t count;
1222    };
1223    typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable;
1224    SizeAndCountTable sizes_and_counts;
1225
1226    void Update(const char* descriptor, size_t object_bytes) {
1227      SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor);
1228      if (it != sizes_and_counts.end()) {
1229        it->second.bytes += object_bytes;
1230        it->second.count += 1;
1231      } else {
1232        sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1));
1233      }
1234    }
1235
1236    double PercentOfOatBytes(size_t size) {
1237      return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100;
1238    }
1239
1240    double PercentOfFileBytes(size_t size) {
1241      return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100;
1242    }
1243
1244    double PercentOfObjectBytes(size_t size) {
1245      return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100;
1246    }
1247
1248    void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) {
1249      method_outlier_size.push_back(total_size);
1250      method_outlier_expansion.push_back(expansion);
1251      method_outlier.push_back(method);
1252    }
1253
1254    void DumpOutliers(std::ostream& os)
1255        SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1256      size_t sum_of_sizes = 0;
1257      size_t sum_of_sizes_squared = 0;
1258      size_t sum_of_expansion = 0;
1259      size_t sum_of_expansion_squared = 0;
1260      size_t n = method_outlier_size.size();
1261      for (size_t i = 0; i < n; i++) {
1262        size_t cur_size = method_outlier_size[i];
1263        sum_of_sizes += cur_size;
1264        sum_of_sizes_squared += cur_size * cur_size;
1265        double cur_expansion = method_outlier_expansion[i];
1266        sum_of_expansion += cur_expansion;
1267        sum_of_expansion_squared += cur_expansion * cur_expansion;
1268      }
1269      size_t size_mean = sum_of_sizes / n;
1270      size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1);
1271      double expansion_mean = sum_of_expansion / n;
1272      double expansion_variance =
1273          (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1);
1274
1275      // Dump methods whose size is a certain number of standard deviations from the mean
1276      size_t dumped_values = 0;
1277      size_t skipped_values = 0;
1278      for (size_t i = 100; i > 0; i--) {  // i is the current number of standard deviations
1279        size_t cur_size_variance = i * i * size_variance;
1280        bool first = true;
1281        for (size_t j = 0; j < n; j++) {
1282          size_t cur_size = method_outlier_size[j];
1283          if (cur_size > size_mean) {
1284            size_t cur_var = cur_size - size_mean;
1285            cur_var = cur_var * cur_var;
1286            if (cur_var > cur_size_variance) {
1287              if (dumped_values > 20) {
1288                if (i == 1) {
1289                  skipped_values++;
1290                } else {
1291                  i = 2;  // jump to counting for 1 standard deviation
1292                  break;
1293                }
1294              } else {
1295                if (first) {
1296                  os << "\nBig methods (size > " << i << " standard deviations the norm):\n";
1297                  first = false;
1298                }
1299                os << PrettyMethod(method_outlier[j]) << " requires storage of "
1300                    << PrettySize(cur_size) << "\n";
1301                method_outlier_size[j] = 0;  // don't consider this method again
1302                dumped_values++;
1303              }
1304            }
1305          }
1306        }
1307      }
1308      if (skipped_values > 0) {
1309        os << "... skipped " << skipped_values
1310           << " methods with size > 1 standard deviation from the norm\n";
1311      }
1312      os << std::flush;
1313
1314      // Dump methods whose expansion is a certain number of standard deviations from the mean
1315      dumped_values = 0;
1316      skipped_values = 0;
1317      for (size_t i = 10; i > 0; i--) {  // i is the current number of standard deviations
1318        double cur_expansion_variance = i * i * expansion_variance;
1319        bool first = true;
1320        for (size_t j = 0; j < n; j++) {
1321          double cur_expansion = method_outlier_expansion[j];
1322          if (cur_expansion > expansion_mean) {
1323            size_t cur_var = cur_expansion - expansion_mean;
1324            cur_var = cur_var * cur_var;
1325            if (cur_var > cur_expansion_variance) {
1326              if (dumped_values > 20) {
1327                if (i == 1) {
1328                  skipped_values++;
1329                } else {
1330                  i = 2;  // jump to counting for 1 standard deviation
1331                  break;
1332                }
1333              } else {
1334                if (first) {
1335                  os << "\nLarge expansion methods (size > " << i
1336                      << " standard deviations the norm):\n";
1337                  first = false;
1338                }
1339                os << PrettyMethod(method_outlier[j]) << " expanded code by "
1340                   << cur_expansion << "\n";
1341                method_outlier_expansion[j] = 0.0;  // don't consider this method again
1342                dumped_values++;
1343              }
1344            }
1345          }
1346        }
1347      }
1348      if (skipped_values > 0) {
1349        os << "... skipped " << skipped_values
1350           << " methods with expansion > 1 standard deviation from the norm\n";
1351      }
1352      os << "\n" << std::flush;
1353    }
1354
1355    void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1356      {
1357        os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n"
1358           << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n";
1359        Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count);
1360        std::ostream indent_os(&indent_filter);
1361        indent_os << StringPrintf("header_bytes    =  %8zd (%2.0f%% of art file bytes)\n"
1362                                  "object_bytes    =  %8zd (%2.0f%% of art file bytes)\n"
1363                                  "bitmap_bytes    =  %8zd (%2.0f%% of art file bytes)\n"
1364                                  "alignment_bytes =  %8zd (%2.0f%% of art file bytes)\n\n",
1365                                  header_bytes, PercentOfFileBytes(header_bytes),
1366                                  object_bytes, PercentOfFileBytes(object_bytes),
1367                                  bitmap_bytes, PercentOfFileBytes(bitmap_bytes),
1368                                  alignment_bytes, PercentOfFileBytes(alignment_bytes))
1369            << std::flush;
1370        CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes);
1371      }
1372
1373      os << "object_bytes breakdown:\n";
1374      size_t object_bytes_total = 0;
1375      for (const auto& sizes_and_count : sizes_and_counts) {
1376        const std::string& descriptor(sizes_and_count.first);
1377        double average = static_cast<double>(sizes_and_count.second.bytes) /
1378            static_cast<double>(sizes_and_count.second.count);
1379        double percent = PercentOfObjectBytes(sizes_and_count.second.bytes);
1380        os << StringPrintf("%32s %8zd bytes %6zd instances "
1381                           "(%4.0f bytes/instance) %2.0f%% of object_bytes\n",
1382                           descriptor.c_str(), sizes_and_count.second.bytes,
1383                           sizes_and_count.second.count, average, percent);
1384        object_bytes_total += sizes_and_count.second.bytes;
1385      }
1386      os << "\n" << std::flush;
1387      CHECK_EQ(object_bytes, object_bytes_total);
1388
1389      os << StringPrintf("oat_file_bytes               = %8zd\n"
1390                         "managed_code_bytes           = %8zd (%2.0f%% of oat file bytes)\n"
1391                         "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
1392                         "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n"
1393                         "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
1394                         "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n"
1395                         "large_method_code_bytes      = %8zd (%2.0f%% of oat file bytes)\n\n",
1396                         oat_file_bytes,
1397                         managed_code_bytes,
1398                         PercentOfOatBytes(managed_code_bytes),
1399                         managed_to_native_code_bytes,
1400                         PercentOfOatBytes(managed_to_native_code_bytes),
1401                         native_to_managed_code_bytes,
1402                         PercentOfOatBytes(native_to_managed_code_bytes),
1403                         class_initializer_code_bytes,
1404                         PercentOfOatBytes(class_initializer_code_bytes),
1405                         large_initializer_code_bytes,
1406                         PercentOfOatBytes(large_initializer_code_bytes),
1407                         large_method_code_bytes,
1408                         PercentOfOatBytes(large_method_code_bytes))
1409            << "DexFile sizes:\n";
1410      for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) {
1411        os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n",
1412                           oat_dex_file_size.first.c_str(), oat_dex_file_size.second,
1413                           PercentOfOatBytes(oat_dex_file_size.second));
1414      }
1415
1416      os << "\n" << StringPrintf("gc_map_bytes           = %7zd (%2.0f%% of oat file bytes)\n"
1417                                 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n"
1418                                 "vmap_table_bytes       = %7zd (%2.0f%% of oat file bytes)\n\n",
1419                                 gc_map_bytes, PercentOfOatBytes(gc_map_bytes),
1420                                 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes),
1421                                 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes))
1422         << std::flush;
1423
1424      os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes)
1425         << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n",
1426                         static_cast<double>(managed_code_bytes) /
1427                             static_cast<double>(dex_instruction_bytes),
1428                         static_cast<double>(managed_code_bytes_ignoring_deduplication) /
1429                             static_cast<double>(dex_instruction_bytes))
1430         << std::flush;
1431
1432      DumpOutliers(os);
1433    }
1434  } stats_;
1435
1436 private:
1437  enum {
1438    // Number of bytes for a constructor to be considered large. Based on the 1000 basic block
1439    // threshold, we assume 2 bytes per instruction and 2 instructions per block.
1440    kLargeConstructorDexBytes = 4000,
1441    // Number of bytes for a method to be considered large. Based on the 4000 basic block
1442    // threshold, we assume 2 bytes per instruction and 2 instructions per block.
1443    kLargeMethodDexBytes = 16000
1444  };
1445  std::unique_ptr<OatDumper> oat_dumper_;
1446  std::ostream* os_;
1447  gc::space::ImageSpace& image_space_;
1448  const ImageHeader& image_header_;
1449  bool dump_raw_mapping_table_;
1450  bool dump_raw_gc_map_;
1451
1452  DISALLOW_COPY_AND_ASSIGN(ImageDumper);
1453};
1454
1455static int oatdump(int argc, char** argv) {
1456  InitLogging(argv);
1457
1458  // Skip over argv[0].
1459  argv++;
1460  argc--;
1461
1462  if (argc == 0) {
1463    fprintf(stderr, "No arguments specified\n");
1464    usage();
1465  }
1466
1467  const char* oat_filename = NULL;
1468  const char* image_location = NULL;
1469  const char* boot_image_location = NULL;
1470  InstructionSet instruction_set = kRuntimeISA;
1471  std::string elf_filename_prefix;
1472  std::ostream* os = &std::cout;
1473  std::unique_ptr<std::ofstream> out;
1474  bool dump_raw_mapping_table = false;
1475  bool dump_raw_gc_map = false;
1476
1477  for (int i = 0; i < argc; i++) {
1478    const StringPiece option(argv[i]);
1479    if (option.starts_with("--oat-file=")) {
1480      oat_filename = option.substr(strlen("--oat-file=")).data();
1481    } else if (option.starts_with("--image=")) {
1482      image_location = option.substr(strlen("--image=")).data();
1483    } else if (option.starts_with("--boot-image=")) {
1484      boot_image_location = option.substr(strlen("--boot-image=")).data();
1485    } else if (option.starts_with("--instruction-set=")) {
1486      StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data();
1487      if (instruction_set_str == "arm") {
1488        instruction_set = kThumb2;
1489      } else if (instruction_set_str == "arm64") {
1490        instruction_set = kArm64;
1491      } else if (instruction_set_str == "mips") {
1492        instruction_set = kMips;
1493      } else if (instruction_set_str == "x86") {
1494        instruction_set = kX86;
1495      } else if (instruction_set_str == "x86_64") {
1496        instruction_set = kX86_64;
1497      }
1498    } else if (option.starts_with("--dump:")) {
1499        if (option == "--dump:raw_mapping_table") {
1500          dump_raw_mapping_table = true;
1501        } else if (option == "--dump:raw_gc_map") {
1502          dump_raw_gc_map = true;
1503        } else {
1504          fprintf(stderr, "Unknown argument %s\n", option.data());
1505          usage();
1506        }
1507    } else if (option.starts_with("--output=")) {
1508      const char* filename = option.substr(strlen("--output=")).data();
1509      out.reset(new std::ofstream(filename));
1510      if (!out->good()) {
1511        fprintf(stderr, "Failed to open output filename %s\n", filename);
1512        usage();
1513      }
1514      os = out.get();
1515    } else {
1516      fprintf(stderr, "Unknown argument %s\n", option.data());
1517      usage();
1518    }
1519  }
1520
1521  if (image_location == NULL && oat_filename == NULL) {
1522    fprintf(stderr, "Either --image or --oat must be specified\n");
1523    return EXIT_FAILURE;
1524  }
1525
1526  if (image_location != NULL && oat_filename != NULL) {
1527    fprintf(stderr, "Either --image or --oat must be specified but not both\n");
1528    return EXIT_FAILURE;
1529  }
1530
1531  if (oat_filename != NULL) {
1532    std::string error_msg;
1533    OatFile* oat_file =
1534        OatFile::Open(oat_filename, oat_filename, NULL, false, &error_msg);
1535    if (oat_file == NULL) {
1536      fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str());
1537      return EXIT_FAILURE;
1538    }
1539    OatDumper oat_dumper(*oat_file, dump_raw_mapping_table, dump_raw_gc_map);
1540    oat_dumper.Dump(*os);
1541    return EXIT_SUCCESS;
1542  }
1543
1544  Runtime::Options options;
1545  std::string image_option;
1546  std::string oat_option;
1547  std::string boot_image_option;
1548  std::string boot_oat_option;
1549
1550  // We are more like a compiler than a run-time. We don't want to execute code.
1551  NoopCompilerCallbacks callbacks;
1552  options.push_back(std::make_pair("compilercallbacks", &callbacks));
1553
1554  if (boot_image_location != NULL) {
1555    boot_image_option += "-Ximage:";
1556    boot_image_option += boot_image_location;
1557    options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL)));
1558  }
1559  if (image_location != NULL) {
1560    image_option += "-Ximage:";
1561    image_option += image_location;
1562    options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL)));
1563  }
1564  options.push_back(
1565      std::make_pair("imageinstructionset",
1566                     reinterpret_cast<const void*>(GetInstructionSetString(instruction_set))));
1567
1568  if (!Runtime::Create(options, false)) {
1569    fprintf(stderr, "Failed to create runtime\n");
1570    return EXIT_FAILURE;
1571  }
1572  std::unique_ptr<Runtime> runtime(Runtime::Current());
1573  // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start,
1574  // give it away now and then switch to a more manageable ScopedObjectAccess.
1575  Thread::Current()->TransitionFromRunnableToSuspended(kNative);
1576  ScopedObjectAccess soa(Thread::Current());
1577  gc::Heap* heap = Runtime::Current()->GetHeap();
1578  gc::space::ImageSpace* image_space = heap->GetImageSpace();
1579  CHECK(image_space != NULL);
1580  const ImageHeader& image_header = image_space->GetImageHeader();
1581  if (!image_header.IsValid()) {
1582    fprintf(stderr, "Invalid image header %s\n", image_location);
1583    return EXIT_FAILURE;
1584  }
1585  ImageDumper image_dumper(os, *image_space, image_header,
1586                           dump_raw_mapping_table, dump_raw_gc_map);
1587  image_dumper.Dump();
1588  return EXIT_SUCCESS;
1589}
1590
1591}  // namespace art
1592
1593int main(int argc, char** argv) {
1594  return art::oatdump(argc, argv);
1595}
1596