oatdata结构详解

段名称  文件内偏移 段大小
ELF头部 0x00000000 0x00001000
oatdata 0x00001000 0x027b8000
oatexec 0x027b9000 0x01ed69ec
ELF尾部 0x04690000 0x00001000

OatHeader：

0x00001000 | 6F 61 74 0A 30 33 39 00 77 40 00 B1 03 00 00 00 | 
0x00001010 | 01 00 00 00 19 00 00 00 00 80 7B 02 01 80 7B 02 |
0x00001020 | 09 80 7B 02 11 80 7B 02 21 80 7B 02 29 80 7B 02 |
0x00001030 | 31 80 7B 02 39 80 7B 02 41 80 7B 02 49 80 7B 02 |
0x00001040 | 51 80 7B 02 00 00 00 00 00 00 00 00 00 00 00 00 |
0x00001050 | 93 05 00 00                                     |
 typenamevallue
uint8_t[4]
 
magic_
 'o', 'a', 't', ' ' 
uint8_t[4]
 
version_
 '0', '3', '9', '' 
uint32_t 
adler32_checksum_
 0xb1004077 
InstructionSet 
instruction_set_
 0x00000003 
InstructionSetFeatures
 
instruction_set_features_
 0x00000001 
uint32_t
 
dex_file_count_
 0x00000019 
uint32_t
 
executable_offset_
 0x027b8000 
uint32_t
 
interpreter_to_interpreter_bridge_offset_
 0x027b8001 
uint32_t
 
interpreter_to_compiled_code_bridge_offset_
 0x027b8009 
uint32_t
 
jni_dlsym_lookup_offset_
 0x027b8011 
uint32_t
 
portable_imt_conflict_trampoline_offset_
 0x027b8021 
uint32_t
 
portable_resolution_trampoline_offset_
 0x027b8029 
uint32_t
 
portable_to_interpreter_bridge_offset_
 0x027b8031 
uint32_t
 
quick_generic_jni_trampoline_offset_
 0x027b8039 
uint32_t
 
quick_imt_conflict_trampoline_offset_
 0x027b8041 
uint32_t
 
quick_resolution_trampoline_offset_
 0x027b8049 
uint32_t
 
quick_to_interpreter_bridge_offset_
 0x027b8051 
int32_t
 
image_patch_delta_
 0x00000000
uint32_t 
image_file_location_oat_checksum_
 0x00000000
uint32_t image_file_location_oat_data_begin_ 0x00000000
uint32_t key_value_store_size_ 0x00000593
uint8_t[0] key_value_store_  

key_value_store：

0x00001050 |             64 65 78 32 6F 61 74 2D 63 6D 64 6C |     dex2oat-cmdl
0x00001060 | 69 6E 65 00 2D 2D 69 6D 61 67 65 3D 2F 64 61 74 | ine.--image=/dat
0x00001070 | 61 2F 64 61 6C 76 69 6B 2D 63 61 63 68 65 2F 61 | a/dalvik-cache/a
0x00001080 | 72 6D 2F 73 79 73 74 65 6D 40 66 72 61 6D 65 77 | rm/system@framew
0x00001090 | 6F 72 6B 40 62 6F 6F 74 2E 61 72 74 20 2D 2D 64 | ork@boot.art --d
0x000010a0 | 65 78 2D 66 69 6C 65 3D 2F 73 79 73 74 65 6D 2F | ex-file=/system/
0x000010b0 | 66 72 61 6D 65 77 6F 72 6B 2F 63 6F 72 65 2D 6C | framework/core-l
... 
0x00001580 | 2D 2D 69 6D 61 67 65 2D 63 6C 61 73 73 65 73 2D | --image-classes-
0x00001590 | 7A 69 70 3D 2F 73 79 73 74 65 6D 2F 66 72 61 6D | zip=/system/fram
0x000015a0 | 65 77 6F 72 6B 2F 66 72 61 6D 65 77 6F 72 6B 2E | ework/framework.
0x000015b0 | 6A 61 72 20 2D 2D 69 6D 61 67 65 2D 63 6C 61 73 | jar --image-clas
0x000015c0 | 73 65 73 3D 70 72 65 6C 6F 61 64 65 64 2D 63 6C | ses=preloaded-cl
0x000015d0 | 61 73 73 65 73 00 64 65 78 32 6F 61 74 2D 68 6F | asses.dex2oat-ho
0x000015e0 | 73 74 00 41 72 6D 00                            | st.Arm.

DexFileMetas:

0x000015e0 |                      21 00 00 00 2F 73 79 73 74        <--------
0x000015f0 | 65 6D 2F 66 72 61 6D 65 77 6F 72 6B 2F 63 6F 72 
0x00001600 | 65 2D 6C 69 62 61 72 74 2E 6A 61 72 FC 04 E8 B5 
0x00001610 | 8C 2F 01 00 78 2C F1 01 E4 2C F1 01 E8 2C F1 01 
0x00001620 | B4 2D F1 01 D8 2D F1 01 04 2E F1 01 28 2E F1 01 
0x00001630 | 54 2E F1 01 F0 31 F1 01 94 32 F1 01 A8 32 F1 01 
0x00001640 | BC 32 F1 01 D0 32 F1 01 E4 32 F1 01 00 33 F1 01  DexFileMeta_0

...
0x00003740 | B8 7C F3 01 2C 7D F3 01 28 7E F3 01 44 7E F3 01 
0x00003750 | 68 7F F3 01 AC 7F F3 01 60 80 F3 01 84 80 F3 01 
0x00003760 | B8 80 F3 01 2C 81 F3 01 40 82 F3 01 1F 00 00 00 -----------><---
0x00003770 | 2F 73 79 73 74 65 6D 2F 66 72 61 6D 65 77 6F 72 
0x00003780 | 6B 2F 63 6F 6E 73 63 72 79 70 74 2E 6A 61 72 76 DexFileMeta_1
0x00003790 | 62 33 B4 64 5C 2D 00 2C 83 F3 01 40 83 F3 01 64  
0x000037a0 | 83 F3 01 E0 83 F3 01 FC 83 F3 01 58 84 F3 01 8C
...                                                               ...
0x00013430 | B1 04 02 84 B1 04 02 B0 B1 04 02 EC B1 04 02 00 
0x00013440 | B2 04 02 24 B2 04 02 00 B3 04 02 04 B3 04 02 18  DexFileMeta_23
0x00013450 | B3 04 02 2C B3 04 02 40 B3 04 02 54 B3 04 02 68 
0x00013460 | B3 04 02 94 B3 04 02 D8 B3 04 02 D4 B4 04 02 20 --------------><
0x00013470 | 00 00 00 2F 73 79 73 74 65 6D 2F 66 72 61 6D 65 
0x00013480 | 77 6F 72 6B 2F 6D 69 75 69 73 79 73 74 65 6D 2E 
0x00013490 | 6A 61 72 4F 52 20 05 78 DD E4 01 10 B5 04 02 AC
...                                                           DexFileMeta_24 
0x00013f60 | 2E 05 02 6C 2E 05 02 80 2E 05 02 94 2E 05 02 A8 
0x00013f70 | 2E 05 02 BC 2E 05 02 D0 2E 05 02 E4 2E 05 02 E8 
0x00013f80 | 2E 05 02 2C 2F 05 02 88 2F 05 02                --------->

DexFileMeta_0:

tyoenamevalue
uint32_t dex_file_location_size 0x00000021
char* dex_file_location_data "/system/framework/core-libart.jar"
uint32_t dex_file_checksum 0xb5e804fc
uint32_t dex_file_offset 0x00012f8c
uint32_t[] oat_class_offsets_pointer

0x01f12c78
0x01f12ce4
0x01f12ce8
0x01f12db4
0x01f12db8
...
0x01f380b8
0x01f3812c
0x01f38240

DexFiles：

0x00013f80 |                                     64 65 78 0A             <---
0x00013f90 | 30 33 35 00 EE 46 38 DD 46 FF 89 0D BE CA CD BD 
0x00013fa0 | 63 CB 13 87 01 1C DC 87 53 DB 34 35 D8 2C 2C 00 
0x00013fb0 | 70 00 00 00 78 56 34 12 00 00 00 00 00 00 00 00 
0x00013fc0 | 08 2C 2C 00 5F 5C 00 00 70 00 00 00 E9 08 00 00 
0x00013fd0 | EC 71 01 00 16 11 00 00 90 95 01 00 6E 1F 00 00 
0x00013fe0 | 98 62 02 00 26 55 00 00 08 5E 03 00 56 08 00 00   DexFile_0
0x00013ff0 | 38 07 06 00 E0 1A 25 00 F8 11 07 00 AE 80 1C 00 
...
0x002d6c30 | 58 3E 23 00 04 20 00 00 55 0A 00 00 87 28 29 00 
0x002d6c40 | 05 20 00 00 7C 02 00 00 08 E4 29 00 00 20 00 00 
0x002d6c50 | 15 08 00 00 1F 0A 2A 00 00 10 00 00 01 00 00 00 
0x002d6c60 | 08 2C 2C 00 64 65 78 0A 30 33 35 00 11 E1 2D 3F ---><-----------
0x002d6c70 | 23 F7 28 15 B0 A3 2C A4 34 0F 06 39 E4 5C D1 13 
0x002d6c80 | 4E 66 79 6A 90 1E 04 00 70 00 00 00 78 56 34 12   DexFile_1
0x002d6c90 | 00 00 00 00 00 00 00 00 C0 1D 04 00 DD 0C 00 00 
0x002d6ca0 | 70 00 00 00 BF 01 00 00 E4 33 00 00 3B 02 00 00
...                                                               ...
0x01e4ed30 | 02 20 00 00 C5 40 00 00 A0 65 0E 00 03 20 00 00 
0x01e4ed40 | 49 1E 00 00 AA D9 13 00 04 20 00 00 1C 05 00 00 
0x01e4ed50 | 96 17 16 00 05 20 00 00 C7 00 00 00 78 69 16 00   DexFile_23
0x01e4ed60 | 00 20 00 00 2F 04 00 00 B7 77 16 00 00 10 00 00 
0x01e4ed70 | 01 00 00 00 5C 74 17 00 64 65 78 0A 30 33 35 00 -------><-------
0x01e4ed80 | CE F8 BA FC 2E B8 5B 1A 70 4D 47 12 5C 10 61 40 
0x01e4ed90 | 24 04 85 DE 8B EA 68 85 00 4F 0C 00 70 00 00 00 
0x01e4eda0 | 78 56 34 12 00 00 00 00 00 00 00 00 30 4E 0C 00 
0x01e4edb0 | 31 28 00 00 70 00 00 00 9B 04 00 00 34 A1 00 00   DexFile_24
...
0x01f13c60 | 00 20 00 00 B4 02 00 00 DA C9 0B 00 00 10 00 00 
0x01f13c70 | 01 00 00 00 30 4E 0C 00                          ------->

DexFile_0：

typenamevalue
uint8_t[8] magic_ "dex.035"
uint32_t checksum_

0xdd3846ee
uint8_t[20] signature_ 
46 FF 89 0D BE CA CD BD 
63 CB 13 87 01 1C DC 87 
53 DB 34 35
uint32_t file_size_ 
0x002c2cd8
uint32_t header_size_ 
0x00000070
uint32_t endian_tag_

0x12345678
uint32_t link_size_ 
0x00000000
uint32_t link_off_ 
0x00000000
uint32_t map_off_ 
0x002c2c08
uint32_t string_ids_size_ 
0x00005c5f
uint32_t string_ids_off_ 
0x00000070
uint32_t type_ids_size_ 
0x000008e9
uint32_t type_ids_off_ 
0x000171ec
uint32_t proto_ids_size_ 
0x00001116
uint32_t proto_ids_off_ 
0x00019590
uint32_t field_ids_size_ 
0x00001f6e
uint32_t field_ids_off_ 
0x00026298
uint32_t method_ids_size_

0x00005526
uint32_t method_ids_off_

0x00035e08
uint32_t class_defs_size_

0x00000856
uint32_t class_defs_off_

0x00060738
uint32_t data_size_

0x00251ae0
uint32_t data_off_

0x000711f8

StringId[]

uint32_t string_data_off_;

 string_ids 
0x001c80ae
0x001c80b0
....

TypeId[]

uint32_t descriptor_idx_;

 type_ids 
0x0000062c
0x000006f1
...

ProtoId[]

uint32_t shorty_idx_;
uint16_t return_type_idx_;
uint16_t pad_;
uint32_t parameters_off_;

 proto_ids 
{
    0x0000062c,
    0x0000,
    0x0000,
    0x00000000 
}
...

FieldId[]

uint16_t class_idx_;
uint16_t type_idx_;
uint32_t name_idx_;

 field_ids 
{
    0x0006,
    0x0004,
    0x000035c5
}
...

MethodId[]

uint16_t class_idx_;
uint16_t proto_idx_;
uint32_t name_idx_;

 method_ids 
{
    0x0006,
    0x0b17,
    0x000004b4
}
...

ClassDef[]

uint16_t class_idx_;
uint16_t pad1_; 
uint32_t access_flags_;
uint16_t superclass_idx_;
uint16_t pad2_;
uint32_t interfaces_off_;
uint32_t source_file_idx_;
uint32_t annotations_off_;
uint32_t class_data_off_;
uint32_t static_values_off_;

 class_defs 
{
    0x0142,
    0x0000,
    0x00000001,
    0xffff,
    0xffff,
    0x00000000,
    0x00001fb1,
    0x001ada34,
    0x002a0a1f,
    0x00000000
}
...
uint32_t[] data 
0x00000001,
0x00292887,
...

OatClasses:

0x01f13c70 |                         0A 00 00 00 71 80 7B 02         <-------
0x01f13c80 | C0 30 05 02 91 80 7B 02 00 00 00 00 29 81 7B 02 
0x01f13c90 | C4 30 05 02 81 82 7B 02 FB 30 05 02 71 80 7B 02 
0x01f13ca0 | C0 30 05 02 D9 82 7B 02 C0 30 05 02 F9 82 7B 02 
0x01f13cb0 | 03 31 05 02 81 83 7B 02 00 00 00 00 81 83 7B 02 DexFile_0_Class_0
0x01f13cc0 | 00 00 00 00 19 84 7B 02 0D 31 05 02 81 83 7B 02 
0x01f13cd0 | 00 00 00 00 29 85 7B 02 2F 31 05 02 91 85 7B 02
0x01f13ce0 | 00 00 00 00 0A 00 02 00 0A 00 00 00 41 86 7B 02 ---><--><------- DexFile_0_Class_1
0x01f13cf0 | 39 31 05 02 E1 86 7B 02 45 31 05 02 91 87 7B 02 DexFile_0_Class_2
0x01f13d00 | 51 31 05 02 59 88 7B 02 5D 31 05 02 39 89 7B 02
...                                                               ...
0x01f39230 | F1 CE A9 02 12 CD 0A 02 81 D1 A9 02 91 CD 0A 02 --------------->
0x01f39240 | 0A 00 01 00 04 00 00 00 FE FF FF 1F F1 A3 7B 02 <---------------
0x01f39250 | 19 34 05 02 81 F6 7C 02 00 00 00 00 81 F6 7C 02 
0x01f39260 | 00 00 00 00 E9 D1 A9 02 9D CD 0A 02 F9 89 A2 02 
0x01f39270 | 00 00 00 00 A9 D2 A9 02 AF CD 0A 02 C1 D3 A9 02
0x01f39280 | AF CD 0A 02 D9 D4 A9 02 00 00 00 00 B1 D5 A9 02
0x01f39290 | 00 00 00 00 99 D6 A9 02 00 00 00 00 91 D7 A9 02 
0x01f392a0 | 00 00 00 00 91 D7 A9 02 00 00 00 00 59 D8 A9 02 
0x01f392b0 | 00 00 00 00 59 D8 A9 02 00 00 00 00 21 D9 A9 02 DexFile_0_Class_2133
0x01f392c0 | 00 00 00 00 21 D9 A9 02 00 00 00 00 E1 D9 A9 02 
0x01f392d0 | CF CD 0A 02 B1 DA A9 02 E5 CD 0A 02 A1 00 85 02
0x01f392e0 | 00 00 00 00 A1 00 85 02 00 00 00 00 E1 96 A2 02
0x01f392f0 | 00 00 00 00 E1 96 A2 02 00 00 00 00 31 DB A9 02
0x01f39300 | 00 00 00 00 31 DB A9 02 00 00 00 00 A1 00 85 02 
0x01f39310 | 00 00 00 00 E1 96 A2 02 00 00 00 00 31 DB A9 02 
0x01f39320 | 00 00 00 00 11 DC A9 02 F5 CD 0A 02 0A 00 00 00 -----------><---
0x01f39330 | C1 DC A9 02 66 3C 05 02 29 DD A9 02 07 CE 0A 02 ---------------> DexFile_1_Class_0
0x01f39340 | 0A 00 00 00 21 DE A9 02 09 48 05 02 81 DE A9 02
0x01f39350 | 25 CE 0A 02 C1 EE 7C 02 91 32 05 02 71 DF A9 02  DexFile_1_Class_1
0x01f39360 | 3F CE 0A 02 0A 00 01 00 04 00 00 00 FF 7D 00 00 ---><-----------
0x01f39370 | 11 E0 A9 02 53 CE 0A 02 B9 E0 A9 02 61 CE 0A 02 DexFile_1_Class_2
...                                                               ...
...                                                               ...
0x02053f70 | 61 A8 68 04 8B B8 4F 02 91 A9 68 04 A9 B8 4F 02 
0x02053f80 | 21 AA 68 04 B7 B8 4F 02 08 00 01 00 08 00 00 00 -------><-------
0x02053f90 | FE FF FF FF 3F 00 00 00 F1 A3 7B 02 19 34 05 02 
0x02053fa0 | D1 AA 68 04 CA B8 4F 02 A9 AB 68 04 DE B8 4F 02 
0x02053fb0 | B9 AD 68 04 37 B9 4F 02 39 B0 68 04 EA B9 4F 02 
0x02053fc0 | 21 B3 68 04 66 BA 4F 02 C1 B3 68 04 19 27 06 02 
0x02053fd0 | 21 B4 68 04 74 BA 4F 02 19 B7 68 04 F8 BA 4F 02 
0x02053fe0 | 91 B8 68 04 40 BB 4F 02 59 BC 68 04 04 BC 4F 02 
0x02053ff0 | C1 BD 68 04 3E BC 4F 02 89 C0 68 04 BE BC 4F 02 
0x02054000 | 39 C2 68 04 0E BD 4F 02 39 C6 68 04 CA BD 4F 02 
0x02054010 | 41 CB 68 04 8E 65 33 02 A9 CB 68 04 22 BF 4F 02 DexFile_24_Class_x
0x02054020 | C1 CD 68 04 8A BF 4F 02 91 CE 68 04 9C BF 4F 02 
0x02054030 | 71 D3 68 04 88 C0 4F 02 49 D5 68 04 E0 C0 4F 02 
0x02054040 | 89 D8 68 04 BB C1 4F 02 49 D9 68 04 CF C1 4F 02 
0x02054050 | D9 D9 68 04 DF C1 4F 02 A1 DA 68 04 F1 C1 4F 02 
0x02054060 | 99 DC 68 04 A6 9C 0F 02 01 DD 68 04 55 C2 4F 02 
0x02054070 | 01 E0 68 04 F5 C2 4F 02 C9 E1 68 04 A6 9C 0F 02 
0x02054080 | 31 E2 68 04 A6 9C 0F 02 99 E2 68 04 49 C3 4F 02 
0x02054090 | 09 E4 68 04 62 6C 0E 02 91 E4 68 04 77 C3 4F 02 
0x020540a0 | D9 E5 68 04 91 C3 4F 02 D9 E7 68 04 03 C4 4F 02 
0x020540b0 | A1 E8 68 04 17 C4 4F 02 69 E9 68 04 29 C4 4F 02 <---------------

DexFile_0_Class_2133:

 typenamevalue
uint16_t

enum Status {
    kStatusRetired = -2,
    kStatusError = -1,
    kStatusNotReady = 0,
    kStatusIdx = 1,
    kStatusLoaded = 2,
    kStatusResolving = 3,
    kStatusResolved = 4,
    kStatusVerifying = 5,
    kStatusRetryVerificationAtRuntime = 6,
    kStatusVerifyingAtRuntime = 7,
    kStatusVerified = 8,
    kStatusInitializing = 9,
    kStatusInitialized = 10,
    kStatusMax = 11,
  };

 status 
0x000a

uint16_t

enum OatClassType {
  kOatClassAllCompiled = 0, 
  kOatClassSomeCompiled = 1,
  kOatClassNoneCompiled = 2,
  kOatClassMax = 3,
};

 type 0x0001
uint32_t bitmap_size(only type == 1) 0x0004
uint32_t[] bintmap(only type == 1) 
0x1ffffffe

OatMethodOffsets[]

uint32_t code_offset_
uint32_t gc_map_offset_

 methods 
0x027cf681,0x00000000
0x02a9d1e9,0x020acd9d 
0x02a289f9,0x00000000
...
0x02a9db31,0x00000000
0x02a9dc11,0x020acdf5

gc_map:

0x020540c0 | 00 00 00 00 0A 00 11 00 70 00 0F D6 00 0F EA 00 
0x020540d0 | 08 B4 00 0F 00 01 01 84 00 0F DE 00 0F 86 00 0F 
0x020540e0 | 08 00 08 58 00 0B 4A 00 09 98 00 0F 3C 00 08 9A 
...
0x024fd410 | 7C 8C 7D 98 00 52 7F 09 00 07 00 A0 00 08 18 62 
0x024fd420 | 1B 46 19 54 19 98 18 82 1B 09 00 05 00 70 00 48 
0x024fd430 | 0F 22 0C 08 0C 5E 0F

mapping_table:

0x024fd430 |                      00 00 11 11 08 00 34 04 0E
0x024fd440 | 02 0E 02 18 05 14 08 02 00 12 04 02 00 18 06 02
0x024fd450 | 00 10 04 02 00 10 04 08 03 0C 01 16 04 02 02 32
...
0x0278c650 | 0A 14 05 0A 00 1C 04 02 00 0A 7B 07 07 08 00 3E 
0x0278c660 | 03 0E 04 0E 02 20 03 16 75 08 0E 05 05 08 00 1A 
0x0278c670 | 00 26 0A 16 03 12 03

vmap_table：

0x0278c670 |                      00 06 00 03 02 04 05 01 04
0x0278c680 | 02 03 04 01 05 05 02 07 00 01 05 00 02 03 04 01 
0x0278c690 | 05 03 04 05 00 01 04 03 00 02 01 05 03 00 02 04 
...
0x027b80b0 | 02 09 03 08 04 01 07 0E 00 02 03 08 0C 01 07 00
0x027b80c0 | 08 02 04 05 0A 01 07 00 03 02 05 0B 06 01 07 00
0x027b80d0 | 02 09 08 03 0A 01 07 00 02 08 03 04 0A 01 07 0E 
0x027b80e0 | 00 11 0C 0D 02 01

padding:

0x027b80e0 |                   00 00 00 00 00 00 00 00 00 00 
0x027b80f0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x027b8100 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
...
0x027b8fd0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x027b8fe0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x027b8ff0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

oatexec:

0x027b9000 | D0 F8 00 F1 00 BE 00 00 D0 F8 04 F1 00 BE 00 00 
0x027b9010 | D0 F8 04 C0 DC F8 08 F1 00 BE 00 00 00 00 00 00 
0x027b9020 | D9 F8 0C F1 00 BE 00 00 D9 F8 10 F1 00 BE 00 00  
0x027b9030 | D9 F8 14 F1 00 BE 00 00 D9 F8 AC F1 00 BE 00 00
...
0x0468ffd0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468ffe0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468fff0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Bridge & Trampoline:

0x027b9000 | ldr.w    pc, [r0, #256]    ; INTERPRETER TO INTERPRETER BRIDGE OFFSET
0x027b9004 | 
0x027b9008 | ldr.w    pc, [r0, #260]    ; INTERPRETER TO COMPILED CODE BRIDGE OFFSET
0x027b900c | 
0x027b9010 | ldr.w    r12, [r0, #4]     ; JNI DLSYM LOOKUP OFFSET
0x027b9014 | ldr.w    pc, [r12, #264]   ; 
0x027b9018 | 
0x027b901c | 
0x027b9020 | ldr.w    pc, [r9, #268]    ; PORTABLE IMT CONFLICT TRAMPOLINE OFFSET
0x027b9024 | 
0x027b9028 | ldr.w    pc, [r9, #272]    ; PORTABLE RESOLUTION TRAMPOLINE OFFSET
0x027b902c | 
0x027b9030 | ldr.w    pc, [r9, #276]    ; PORTABLE TO INTERPRETER BRIDGE OFFSET
0x027b9034 | 
0x027b9038 | ldr.w    pc, [r9, #428]    ; QUICK GENERIC JNI TRAMPOLINE OFFSET
0x027b903c | 
0x027b9040 | ldr.w    pc, [r9, #528]    ; QUICK IMT CONFLICT TRAMPOLINE OFFSET
0x027b9044 | 
0x027b9048 | ldr.w    pc, [r9, #532]    ; QUICK RESOLUTION TRAMPOLINE OFFSET
0x027b904c | 
0x027b9050 | ldr.w    pc, [r9, #536]    ; QUICK TO INTERPRETER BRIDGE OFFSET
0x027b9054 |

Methods:

0x027b9050 |                         39 BC 2B 00 F9 C9 02 00         <------- 
0x027b9060 | 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00     Method_0
0x027b9070 | 70 47 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ---><-----------
0x027b9080 | 40 00 00 00 E0 4D 00 00 00 00 00 00 7A 00 00 00 
0x027b9090 | 2D E9 E0 4D AD F2 24 0D 00 90 11 91 4F F0 01 0C 
0x027b90a0 | CD F8 08 C0 D9 F8 C8 C0 CD F8 04 C0 0D F2 04 0C 
0x027b90b0 | C9 F8 C8 C0 DD F8 44 C0 CD F8 0C C0 C9 F8 8C D0     Method_1
0x027b90c0 | 4F F0 00 0C C9 F8 90 C0 48 46 D0 F8 94 C1 E0 47 
0x027b90d0 | 04 90 0D F2 0C 01 D9 F8 98 00 DD F8 00 C0 DC F8 
0x027b90e0 | 20 C0 E0 47 04 99 4A 46 D2 F8 A4 C1 E0 47 D9 F8 
0x027b90f0 | 7C C0 BC F1 00 0F 03 D1 0D F2 24 0D BD E8 E0 8D 
0x027b9100 | 60 46 D9 F8 34 C2 E0 47 00 BE 00 00 00 00 00 00 --------->
0x027b9110 | EF BC 2B 00 B0 CA 02 00 40 00 00 00 E0 85 00 00 <---------------
0x027b9120 | 00 00 00 00 3C 01 00 00 BD F5 00 5C DC F8 00 C0 
0x027b9130 | 2D E9 E0 45 8A B0 05 1C 00 90 8A 46 29 1C 0A 69 
0x027b9140 | 50 46 D2 F8 44 24 20 B1 01 68 D9 F8 3C E1 10 1C 
0x027b9150 | F0 47 07 1C 00 2F 56 D1 DF F8 04 01 D9 F8 2C E1      Method_2
0x027b9160 | 29 1C F0 47 D9 F8 2C E1 07 1C DF F8 F0 00 29 1C 
0x027b9170 | F0 47 DF F8 CC E0 06 1C DF F8 DC 00 31 1C F0 47 
...
0x0468f8c0 | 85 53 C0 58 98 B3 82 6E 0A 2A 30 DB BF F3 5B 8F 
0x0468f8d0 | D0 F8 88 60 28 1C C0 68 31 1C 52 46 D0 F8 A4 06 
0x0468f8e0 | D0 F8 28 E0 F0 47 D9 F8 2C E1 06 1C DF F8 5C 00 
0x0468f8f0 | 29 1C F0 47 DF F8 4C E0 07 1C DF F8 4C 00 39 1C     Method_n-1
0x0468f900 | F0 47 28 1C C0 68 00 22 04 92 45 F2 2C 3C 50 F8 
0x0468f910 | 0C 00 00 22 D0 F8 28 E0 05 92 41 46 32 1C 3B 1C 
0x0468f920 | F0 47 01 3C 00 F0 09 80 0A B0 BD E8 E0 85 D9 F8 
0x0468f930 | 44 E1 40 F2 25 40 F0 47 C8 E7 D9 F8 30 E2 F0 47 
0x0468f940 | F2 E7 00 00 49 84 BB 73 30 D0 43 70 A0 CD 43 70 
0x0468f950 | FD 32 F0 01 78 23 F0 01 30 00 00 00 E0 85 00 00 <---------------
0x0468f960 | 00 00 00 00 84 00 00 00 BD F5 00 5C DC F8 00 C0 
0x0468f970 | 2D E9 E0 45 86 B0 05 1C 00 90 8A 46 17 1C DF F8 
0x0468f980 | 60 E0 DF F8 64 00 39 1C F0 47 06 1C DE B9 6A 69 
0x0468f990 | D5 F8 14 C0 44 F2 A0 63 D6 58 DF F8 40 E0 49 F6      Method_n
0x0468f9a0 | F8 20 5C F8 00 80 DF F8 3C 00 31 1C 42 46 F0 47 
0x0468f9b0 | 28 1C C0 68 51 46 3A 1C 45 F2 30 3C 50 F8 0C 00 
0x0468f9c0 | D0 F8 28 E0 F0 47 01 3C 00 F0 03 80 06 B0 BD E8 
0x0468f9d0 | E0 85 D9 F8 30 E2 F0 47 F8 E7 00 00 49 61 23 74 
0x0468f9e0 | 31 84 1E 74 38 91 65 70 88 67 64 70 00 00 00 00 -----------><---
0x0468f9f0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468fa00 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468fa10 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
...                                                               padding
0x0468ffd0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468ffe0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0468fff0 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 --------------->

Method_0:

0x027b9058 | 0x002bbc39 OatQuickMethodHeader::mapping_table_offset_
0x027b905c | 0x0002c9f9 OatQuickMethodHeader::vmap_table_offset_
0x027b9060 | 0x00000000 OatQuickMethodHeader::QuickMethodFrameInfo::frame_size_in_bytes_
0x027b9064 | 0x00000000 OatQuickMethodHeader::QuickMethodFrameInfo::core_spill_mask_
0x027b9068 | 0x00000000 OatQuickMethodHeader::QuickMethodFrameInfo::fp_spill_mask_
0x027b906c | 0x00000004 OatQuickMethodHeader::code_size_
0x027b8070 | 4770          bx      lr
0x027b8072 | 0000          lsls    r0, r0, #0
oatdump:
0: Ljava/lang/Object; (offset=0x01f12c78) (type_idx=322) (StatusInitialized) (OatClassAllCompiled)
  0: void java.lang.Object.<init>() (dex_method_idx=2877)
    DEX CODE:
      0x0000: return-void
    OatMethodOffsets (offset=0x01f12c7c)
      code_offset: 0x027b8071
      gc_map: (offset=0x020530c0)
    OatQuickMethodHeader (offset=0x027b8058)
      mapping_table: (offset=0x024fc437)
      vmap_table: (offset=0x0278b677)
    QuickMethodFrameInfo
      frame_size_in_bytes: 0
      core_spill_mask: 0x00000000
      fp_spill_mask: 0x00000000
    CODE: (code_offset=0x027b8071 size_offset=0x027b806c size=4)...
      0x027b8070: 4770          bx      lr
      0x027b8072: 0000          lsls    r0, r0, #0

Method_1:

0x027b9078 | 0x00000000 OatQuickMethodHeader::mapping_table_offset_
0x027b907c | 0x00000000 OatQuickMethodHeader::vmap_table_offset_
0x027b9080 | 0x00000040 OatQuickMethodHeader::QuickMethodFrameInfo::frame_size_in_bytes_
0x027b9084 | 0x00004de0 OatQuickMethodHeader::QuickMethodFrameInfo::core_spill_mask_
0x027b9088 | 0x00000000 OatQuickMethodHeader::QuickMethodFrameInfo::fp_spill_mask_
0x027b908c | 0x0000007a OatQuickMethodHeader::code_size_
0x027b8090 | e92d4de0      push    {r5, r6, r7, r8, r10, r11, lr}
0x027b8094 | f2ad0d24      subw    sp, sp, #36
0x027b8098 | 9000          str     r0, [sp, #0]
0x027b809a | 9111          str     r1, [sp, #68]
0x027b809c | f04f0c01      mov.w   r12, #1
0x027b80a0 | f8cdc008      str.w   r12, [sp, #8]
0x027b80a4 | f8d9c0c8      ldr.w   r12, [r9, #200]  ; top_handle_scope
0x027b80a8 | f8cdc004      str.w   r12, [sp, #4]
0x027b80ac | f20d0c04      addw    r12, sp, #4
0x027b80b0 | f8c9c0c8      str.w   r12, [r9, #200]
0x027b80b4 | f8ddc044      ldr.w   r12, [sp, #68]
0x027b80b8 | f8cdc00c      str.w   r12, [sp, #12]
0x027b80bc | f8c9d08c      str.w   sp, [r9, #140]
0x027b80c0 | f04f0c00      mov.w   r12, #0
0x027b80c4 | f8c9c090      str.w   r12, [r9, #144]
0x027b80c8 | 4648          mov     r0, r9
0x027b80ca | f8d0c194      ldr.w   r12, [r0, #404]
0x027b80ce | 47e0          blx     r12
0x027b80d0 | 9004          str     r0, [sp, #16]
0x027b80d2 | f20d010c      addw    r1, sp, #12
0x027b80d6 | f8d90098      ldr.w   r0, [r9, #152]  ; jni_env
0x027b80da | f8ddc000      ldr.w   r12, [sp, #0]
0x027b80de | f8dcc020      ldr.w   r12, [r12, #32]
0x027b80e2 | 47e0          blx     r12
0x027b80e4 | 9904          ldr     r1, [sp, #16]
0x027b80e6 | 464a          mov     r2, r9
0x027b80e8 | f8d2c1a4      ldr.w   r12, [r2, #420]
0x027b80ec | 47e0          blx     r12
0x027b80ee | f8d9c07c      ldr.w   r12, [r9, #124]  ; exception
0x027b80f2 | f1bc0f00      cmp.w   r12, #0
0x027b80f6 | d103          bne     +6 (0x027b8100)
0x027b80f8 | f20d0d24      addw    sp, sp, #36
0x027b80fc | e8bd8de0      pop     {r5, r6, r7, r8, r10, r11, pc}
0x027b8100 | 4660          mov     r0, r12
0x027b8102 | f8d9c234      ldr.w   r12, [r9, #564]  ; pDeliverException
0x027b8106 | 47e0          blx     r12
0x027b8108 | be00
oatdump:
  1: java.lang.Object java.lang.Object.internalClone() (dex_method_idx=2883)
    DEX CODE:
    OatMethodOffsets (offset=0x01f12c84)
      code_offset: 0x027b8091
      gc_map: (offset=0x00000000)
    OatQuickMethodHeader (offset=0x027b8078)
      mapping_table: (offset=0x00000000)
      vmap_table: (offset=0x00000000)
    QuickMethodFrameInfo
      frame_size_in_bytes: 64
      core_spill_mask: 0x00004de0 (r5, r6, r7, r8, r10, r11, r14)
      fp_spill_mask: 0x00000000
    CODE: (code_offset=0x027b8091 size_offset=0x027b808c size=122)...
      0x027b8090: e92d4de0      push    {r5, r6, r7, r8, r10, r11, lr}
      0x027b8094: f2ad0d24      subw    sp, sp, #36
      0x027b8098: 9000          str     r0, [sp, #0]
      0x027b809a: 9111          str     r1, [sp, #68]
      0x027b809c: f04f0c01      mov.w   r12, #1
      0x027b80a0: f8cdc008      str.w   r12, [sp, #8]
      0x027b80a4: f8d9c0c8      ldr.w   r12, [r9, #200]  ; top_handle_scope
      0x027b80a8: f8cdc004      str.w   r12, [sp, #4]
      0x027b80ac: f20d0c04      addw    r12, sp, #4
      0x027b80b0: f8c9c0c8      str.w   r12, [r9, #200]
      0x027b80b4: f8ddc044      ldr.w   r12, [sp, #68]
      0x027b80b8: f8cdc00c      str.w   r12, [sp, #12]
      0x027b80bc: f8c9d08c      str.w   sp, [r9, #140]
      0x027b80c0: f04f0c00      mov.w   r12, #0
      0x027b80c4: f8c9c090      str.w   r12, [r9, #144]
      0x027b80c8: 4648          mov     r0, r9
      0x027b80ca: f8d0c194      ldr.w   r12, [r0, #404]
      0x027b80ce: 47e0          blx     r12
      0x027b80d0: 9004          str     r0, [sp, #16]
      0x027b80d2: f20d010c      addw    r1, sp, #12
      0x027b80d6: f8d90098      ldr.w   r0, [r9, #152]  ; jni_env
      0x027b80da: f8ddc000      ldr.w   r12, [sp, #0]
      0x027b80de: f8dcc020      ldr.w   r12, [r12, #32]
      0x027b80e2: 47e0          blx     r12
      0x027b80e4: 9904          ldr     r1, [sp, #16]
      0x027b80e6: 464a          mov     r2, r9
      0x027b80e8: f8d2c1a4      ldr.w   r12, [r2, #420]
      0x027b80ec: 47e0          blx     r12
      0x027b80ee: f8d9c07c      ldr.w   r12, [r9, #124]  ; exception
      0x027b80f2: f1bc0f00      cmp.w   r12, #0
      0x027b80f6: d103          bne     +6 (0x027b8100)
      0x027b80f8: f20d0d24      addw    sp, sp, #36
      0x027b80fc: e8bd8de0      pop     {r5, r6, r7, r8, r10, r11, pc}
      0x027b8100: 4660          mov     r0, r12
      0x027b8102: f8d9c234      ldr.w   r12, [r9, #564]  ; pDeliverException
      0x027b8106: 47e0          blx     r12
      0x027b8108: be00
 nameoffsetsize

OatHeader

 
1000
 54

key_value_store

 
1054
 593

DexFileMetas

 
15e7
 129A5

DexFiles

 13f8c 1EFFCEC

OatClasses

 
1f13c78
 140448

gc_map

 
20540c0
 4A9377

mapping_table

 
24fd437
 28F240

vmap_table

 
278c677
 2BA6F

padding

 
27b80e6
 F1A

oatexec

 
27b9000
 1ED7000
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原文地址：https://www.cnblogs.com/YYPapa/p/6851015.html