How to deal with invalid dyld_shared_cache magic error #322

triceratops-with-a-single-horn · 2023-10-04T05:36:00Z

triceratops-with-a-single-horn
Oct 4, 2023

Hi friends! I downloaded the "iPhone15,3_17.0_21A329_Restore.ipsw" from Apple's own URL and then extracted dyld shared cache from the IPSW using ipsw extract ~/Downloads/iPhone15,3_17.0_21A329_Restore.ipsw -d

When I'm trying to extract dylib from the dyld shared cache with the ipsw dyld extract /Applications/Xcode_15.app/Contents/Developer/Platforms/iPhoneOS.platform/usr/lib/dsc_extractor.bundle ~/21A329__iPhone15,3/dyld_shared_cache_arm64e -o ~/output/ command I'm getting the following error

invalid dyld_shared_cache magic '????' in record at byte 0x0

Running the dyld-shared-cache-extractor tool on the same dyld_shared_cache_arm64e file creates System and usr folders that has axbundle and dylib files respectively, but using llvm-dwarfdump on those files shows that their content is empty. So I'm not sure if the output is correct at all.

So my question is, what does the above error mean and how can I pass it?

I can reproduce this on both MacOS Sonoma 14.0 (23A344) and MacOS Ventura 13.5.2 (22G91). Xcode 15.0 Build version 15A240d

Edit:

Output of `ipsw dyld info 21A329__iPhone15,3/dyld_shared_cache_arm64e` command

Header

Magic = "dyld_v1 arm64e"
Platform = iOS
OS Version = 17.0
Max Slide = 0x2FF90000 (ASLR entropy: 16-bits, 767MB)
Num Images = 3333
Num SubCaches = 54

Shared Region: 3GB, address: 0x180000000 -> 0x25006C000
Local Symbols (nlist array): 149MB, offset: 0x000011070 -> 0x0095873E0
Local Symbols (string pool): 485MB, offset: 0x0095873E0 -> 0x027B4F614
ImagesText Info: 104KB, offset: 0x000000270 -> 0x00001A310
Accelerate Tab: 6985051KB, address: 0x1AA51A000 -> 0x354A70ED0
Patch Info: 96MB, address: 0x238C78698 -> 0x23ED26033
Prebuilt Loader Set: 2534KB, address: 0x23ED26038 -> 0x0002798A0
Prebuilt Loader Pool: 29MB, address: 0x23EF9F8D8 -> 0x240D598D8
Swift Opts: 0MB, offset: 0x064AC4000 -> 0x064AC4000

Cache UUID: 83C723AB-9F1C-36FA-AE34-9544087AAEA1

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x00074000 (475 kB)	0x180000000	0x00000000		0

Code Signature: 0MB, offset: 0x000074000 -> 0x000078000

Cache (.01) UUID: 4D41E14F-6365-3A7D-9F47-2C4E68081426

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06bb4000 (113 MB)	0x180074000	0x00000000		0

Code Signature: 0MB, offset: 0x006BB4000 -> 0x006BEC000

STUB Island Cache (.02) UUID: 005924D1-4888-3165-BF00-47DC0709180A

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0000c000 (49 kB)	0x186c28000	0x00000000		8

Code Signature: 0MB, offset: 0x00000C000 -> 0x000010000

Cache (.03) UUID: C140A1E1-06D2-337F-8C89-8E2AC1760F09

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06c70000 (114 MB)	0x186c34000	0x00000000		0

Code Signature: 0MB, offset: 0x006C70000 -> 0x006CA8000

STUB Island Cache (.04) UUID: F0A4F3B0-F1E1-3416-9227-EC89B180FDEA

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0003c000 (246 kB)	0x18d8a4000	0x00000000		8

Code Signature: 0MB, offset: 0x00003C000 -> 0x000040000

Cache (.05) UUID: 90F678DC-1CDD-3718-A120-79F55C0421AB

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06b1c000 (112 MB)	0x18d8e0000	0x00000000		0

Code Signature: 0MB, offset: 0x006B1C000 -> 0x006B54000

STUB Island Cache (.06) UUID: AD3FA1A4-79EC-3317-AF8E-7E124F61086B

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00054000 (344 kB)	0x1943fc000	0x00000000		8

Code Signature: 0MB, offset: 0x000054000 -> 0x000058000

Cache (.07) UUID: 8AE66995-2333-31EA-954E-55465A205AEB

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x058b4000 (93 MB)	0x194450000	0x00000000		0

Code Signature: 0MB, offset: 0x0058B4000 -> 0x0058E4000

STUB Island Cache (.08) UUID: BA59C343-7052-3286-B49D-BB1264D179B4

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00058000 (360 kB)	0x199d04000	0x00000000		8

Code Signature: 0MB, offset: 0x000058000 -> 0x00005C000

Cache (.09) UUID: 182EC5B5-778C-35B4-A2E7-13BF7D470312

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06df4000 (115 MB)	0x199d5c000	0x00000000		0

Code Signature: 0MB, offset: 0x006DF4000 -> 0x006E2C000

STUB Island Cache (.10) UUID: 71C9E849-6A0F-3EF0-85DD-1C26120BF7E8

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00048000 (295 kB)	0x1a0b50000	0x00000000		8

Code Signature: 0MB, offset: 0x000048000 -> 0x00004C000

Cache (.11) UUID: 2626DE0C-4B03-36D0-AA4D-DEA27ED85E9D

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06a08000 (111 MB)	0x1a0b98000	0x00000000		0

Code Signature: 0MB, offset: 0x006A08000 -> 0x006A40000

STUB Island Cache (.12) UUID: EB8EAC9E-45B8-3D8B-BC5B-23DF75786571

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00070000 (459 kB)	0x1a75a0000	0x00000000		8

Code Signature: 0MB, offset: 0x000070000 -> 0x000074000

Cache (.13) UUID: 726F118D-7C5C-323A-BF6B-845EB221B564

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06864000 (110 MB)	0x1a7610000	0x00000000		0

Code Signature: 0MB, offset: 0x006864000 -> 0x00689C000

STUB Island Cache (.14) UUID: 585FB08F-0C2A-363B-A6FE-3DEB7C461F8B

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0006c000 (442 kB)	0x1ade74000	0x00000000		8

Code Signature: 0MB, offset: 0x00006C000 -> 0x000070000

Cache (.15) UUID: 67ABCB02-6462-3B28-AB6B-E0E52E4FC92C

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06d00000 (114 MB)	0x1adee0000	0x00000000		0

Code Signature: 0MB, offset: 0x006D00000 -> 0x006D38000

STUB Island Cache (.16) UUID: 83E7A5F5-D47E-38F4-A650-729699D87088

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00074000 (475 kB)	0x1b4be0000	0x00000000		8

Code Signature: 0MB, offset: 0x000074000 -> 0x000078000

Cache (.17) UUID: CD587920-10A9-3B46-9796-65C339BED639

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06ac8000 (112 MB)	0x1b4c54000	0x00000000		0

Code Signature: 0MB, offset: 0x006AC8000 -> 0x006B00000

STUB Island Cache (.18) UUID: 208F2C26-8758-3DA3-9371-45F990E34B37

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00070000 (459 kB)	0x1bb71c000	0x00000000		8

Code Signature: 0MB, offset: 0x000070000 -> 0x000074000

Cache (.19) UUID: 8AA052CD-C679-38BF-B02C-BB678B4046D6

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06bf8000 (113 MB)	0x1bb78c000	0x00000000		0

Code Signature: 0MB, offset: 0x006BF8000 -> 0x006C30000

STUB Island Cache (.20) UUID: F0EB8F5A-C094-3A23-B64D-9BA166DDE071

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0007c000 (508 kB)	0x1c2384000	0x00000000		8

Code Signature: 0MB, offset: 0x00007C000 -> 0x000080000

Cache (.21) UUID: 531F65DE-925F-3858-BA1C-C012DB48CD76

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x05144000 (85 MB)	0x1c2400000	0x00000000		0

Code Signature: 0MB, offset: 0x005144000 -> 0x005170000

STUB Island Cache (.22) UUID: 3735AB53-6266-32F8-8769-D72E36F43F12

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00068000 (426 kB)	0x1c7544000	0x00000000		8

Code Signature: 0MB, offset: 0x000068000 -> 0x00006C000

Cache (.23) UUID: 8E7E7FE6-C57D-32F4-9DD6-1781CA811A1C

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06d98000 (115 MB)	0x1c75ac000	0x00000000		0

Code Signature: 0MB, offset: 0x006D98000 -> 0x006DD0000

STUB Island Cache (.24) UUID: CC66E664-CF08-309F-8C04-4030C42EF36B

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00048000 (295 kB)	0x1ce344000	0x00000000		8

Code Signature: 0MB, offset: 0x000048000 -> 0x00004C000

Cache (.25) UUID: 95CE131D-5A65-3FC5-8CDE-638036285D7A

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06c4c000 (114 MB)	0x1ce38c000	0x00000000		0

Code Signature: 0MB, offset: 0x006C4C000 -> 0x006C84000

STUB Island Cache (.26) UUID: 6F2DB477-0902-37A1-9081-4BE692AF7E50

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00074000 (475 kB)	0x1d4fd8000	0x00000000		8

Code Signature: 0MB, offset: 0x000074000 -> 0x000078000

Cache (.27) UUID: 1012CD89-94E3-3949-A19B-EF86C923E61F

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x01038000 (17 MB)	0x1d504c000	0x00000000		0

Code Signature: 0MB, offset: 0x001038000 -> 0x001044000

STUB Island Cache (.28) UUID: 9CE5BDA4-FA60-30CF-A2E5-BA90F42E60A4

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00018000 (98 kB)	0x1d6084000	0x00000000		8

Code Signature: 0MB, offset: 0x000018000 -> 0x00001C000

Cache (.29.dylddata) UUID: 69E510E7-47B0-340B-A3D9-42648D49A6EE

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x00070000 (459 kB)	0x1d609c000	0x00000000		0
__DATA_CONST	r--	rw-	0x0032c000 (3.3 MB)	0x1d610c000	0x00070000	0x0a9a1ae8 -> 0x0a9a2158	4
__DATA	rw-	rw-	0x00d68000 (14 MB)	0x1d8438000	0x0039c000	0x0a9a0000 -> 0x0a9a1ae8	0
__AUTH	rw-	rw-	0x05420000 (88 MB)	0x1d91a0000	0x01104000	0x0a9a2158 -> 0x0a9ac9b0	1
__AUTH_CONST	r--	rw-	0x0447c000 (72 MB)	0x1de5c0000	0x06524000	0x0a9ac9b0 -> 0x0a9b52c0	5
__LINKEDIT	r--	r--	0x00018000 (98 kB)	0x1e4a3c000	0x0a9a0000		0

Code Signature: 0MB, offset: 0x00A9B8000 -> 0x00AA10000

Cache (.30.dyldlinkedit) UUID: 52F16E07-DC58-3A5F-A618-D2FC7C5E0A52

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x00070000 (459 kB)	0x1e4a54000	0x00000000		0
__LINKEDIT	r--	r--	0x01888000 (26 MB)	0x1e4ac4000	0x00070000		0

Code Signature: 0MB, offset: 0x0018F8000 -> 0x001908000

Cache (.31) UUID: F396EF8A-236A-3B03-A8A4-80CD2DE60ED7

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06ae4000 (112 MB)	0x1e634c000	0x00000000		0

Code Signature: 0MB, offset: 0x006AE4000 -> 0x006B1C000

STUB Island Cache (.32) UUID: 951A8FC4-4D53-348D-A2F3-6BB7E96F89D0

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0008c000 (573 kB)	0x1ece30000	0x00000000		8

Code Signature: 0MB, offset: 0x00008C000 -> 0x000090000

Cache (.33) UUID: 943FB64A-35D0-30B6-A635-2D8BE95A88B6

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06e08000 (115 MB)	0x1ecebc000	0x00000000		0

Code Signature: 0MB, offset: 0x006E08000 -> 0x006E40000

STUB Island Cache (.34) UUID: 8B9B2C64-D636-32EF-9E5F-806AD24E59BE

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00078000 (492 kB)	0x1f3cc4000	0x00000000		8

Code Signature: 0MB, offset: 0x000078000 -> 0x00007C000

Cache (.35) UUID: 6BD38CD8-4178-3F28-B87F-ECDE1433909E

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06db0000 (115 MB)	0x1f3d3c000	0x00000000		0

Code Signature: 0MB, offset: 0x006DB0000 -> 0x006DE8000

STUB Island Cache (.36) UUID: 3C902F33-6F50-328C-9617-B2C2E7DE88A1

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00094000 (606 kB)	0x1faaec000	0x00000000		8

Code Signature: 0MB, offset: 0x000094000 -> 0x000098000

Cache (.37) UUID: 1BE83700-73CE-3CF2-B199-CDC7DA492099

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06db0000 (115 MB)	0x1fab80000	0x00000000		0

Code Signature: 0MB, offset: 0x006DB0000 -> 0x006DE8000

STUB Island Cache (.38) UUID: 28FFD9D8-2AF3-3E95-9AC5-03A19043FEE8

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x0009c000 (639 kB)	0x201930000	0x00000000		8

Code Signature: 0MB, offset: 0x00009C000 -> 0x0000A0000

Cache (.39) UUID: 937BC6A9-1BCA-3C52-9D8E-0FEB7D7FF1CB

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06d9c000 (115 MB)	0x2019cc000	0x00000000		0

Code Signature: 0MB, offset: 0x006D9C000 -> 0x006DD4000

STUB Island Cache (.40) UUID: 727B69D6-F88C-38A0-8275-8B13DA64FB52

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x000bc000 (770 kB)	0x208768000	0x00000000		8

Code Signature: 0MB, offset: 0x0000BC000 -> 0x0000C0000

Cache (.41) UUID: 3E722BDB-F061-3958-98A6-771AE09D4662

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06c80000 (114 MB)	0x208824000	0x00000000		0

Code Signature: 0MB, offset: 0x006C80000 -> 0x006CB8000

STUB Island Cache (.42) UUID: 2211B783-4AB8-31A5-9F77-1C69308F62E3

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x000b8000 (754 kB)	0x20f4a4000	0x00000000		8

Code Signature: 0MB, offset: 0x0000B8000 -> 0x0000BC000

Cache (.43) UUID: FC0CA2E6-E927-397E-9E96-8E5BFFFCB4B6

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06e6c000 (116 MB)	0x20f55c000	0x00000000		0

Code Signature: 0MB, offset: 0x006E6C000 -> 0x006EA4000

STUB Island Cache (.44) UUID: 28A39C9F-EA5D-3298-A41F-29A2DDCC6426

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00098000 (623 kB)	0x2163c8000	0x00000000		8

Code Signature: 0MB, offset: 0x000098000 -> 0x00009C000

Cache (.45) UUID: 2A865DA5-865D-3E11-8385-83E7C61FFB4B

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06e64000 (116 MB)	0x216460000	0x00000000		0

Code Signature: 0MB, offset: 0x006E64000 -> 0x006E9C000

STUB Island Cache (.46) UUID: E24BF467-DCA8-3226-B5AE-8BA92A1E129B

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00094000 (606 kB)	0x21d2c4000	0x00000000		8

Code Signature: 0MB, offset: 0x000094000 -> 0x000098000

Cache (.47) UUID: A666CF0B-3427-3F73-9053-38C79D59223A

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06e54000 (116 MB)	0x21d358000	0x00000000		0

Code Signature: 0MB, offset: 0x006E54000 -> 0x006E8C000

STUB Island Cache (.48) UUID: 83F708EB-C7B4-3E53-A0C5-052FD6AFC35A

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x000f0000 (983 kB)	0x2241ac000	0x00000000		8

Code Signature: 0MB, offset: 0x0000F0000 -> 0x0000F4000

Cache (.49) UUID: 4BE67E61-C88E-36A6-87D4-00C5D59D2688

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x06d14000 (114 MB)	0x22429c000	0x00000000		0

Code Signature: 0MB, offset: 0x006D14000 -> 0x006D4C000

STUB Island Cache (.50) UUID: ACD72390-E425-344D-81C4-0A7E4DF4D7D8

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x000d4000 (868 kB)	0x22afb0000	0x00000000		8

Code Signature: 0MB, offset: 0x0000D4000 -> 0x0000D8000

Cache (.51) UUID: D30E9292-2052-38D6-BDB8-DB0F9BA0DD85

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x0091c000 (9.6 MB)	0x22b084000	0x00000000		0

Code Signature: 0MB, offset: 0x00091C000 -> 0x000924000

STUB Island Cache (.52) UUID: 2A62C482-ABCE-33C9-BDB2-752F407FB06D

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT_STUBS	r-x	r-x	0x00008000 (33 kB)	0x22b9a0000	0x00000000		8

Code Signature: 0MB, offset: 0x000008000 -> 0x00000C000

Cache (.53.dylddata) UUID: 6F4C2C71-2B4A-3866-8EBA-E89CA1828D3C

Mappings

SEG	INITPROT	MAXPROT	SIZE	ADDRESS	FILE OFFSET	SLIDE INFO (V3) OFFSET	FLAGS
__TEXT	r-x	r-x	0x00070000 (459 kB)	0x22b9a8000	0x00000000		0
__DATA_CONST	r--	rw-	0x00408000 (4.2 MB)	0x22ba18000	0x00070000	0x0922b218 -> 0x0922ba40	4
__DATA	rw-	rw-	0x01900000 (26 MB)	0x22de20000	0x00478000	0x09228000 -> 0x0922b218	0
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__AUTH_CONST	r--	rw-	0x0382c000 (59 MB)	0x2333a4000	0x059fc000	0x09233360 -> 0x0923a3d0	5
__LINKEDIT	r--	r--	0x00014000 (82 kB)	0x238bd0000	0x09228000		0

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Code Signature: 1MB, offset: 0x027B50000 -> 0x027C90000

blacktop · 2023-10-05T01:02:06Z

blacktop
Oct 5, 2023
Maintainer

I think the command you want is ipsw dyld split DSC /output

1 reply

triceratops-with-a-single-horn Oct 10, 2023
Author

Thanks @blacktop 🙌 Running ipsw dyld split ~/21A329__iPhone15,3/dyld_shared_cache_arm64e worked and generated the System and usr folders.

However when I run llvm-dwarfdump to see the contents of the debug symbols, it's still empty. I tried this for bunch of dylibs and Frameworks but the result is the same 🤔 Am I misusing anything?

% /opt/llvm/bin/llvm-dwarfdump ~/Downloads/21A329__iPhone15,3/System/Library/Frameworks/PushToTalk.framework/PushToTalk

~Downloads/21A329__iPhone15,3/System/Library/Frameworks/PushToTalk.framework/PushToTalk: file format Mach-O arm64

.debug_info contents:

How to deal with invalid dyld_shared_cache magic error #322

triceratops-with-a-single-horn Oct 4, 2023

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Replies: 1 comment · 1 reply

blacktop Oct 5, 2023 Maintainer

triceratops-with-a-single-horn Oct 10, 2023 Author

triceratops-with-a-single-horn
Oct 4, 2023

Replies: 1 comment 1 reply

blacktop
Oct 5, 2023
Maintainer

triceratops-with-a-single-horn Oct 10, 2023
Author