otool用法举例：AwemeCore

• 输入文件：

  /Users/crifan/dev/DevRoot/iOSReverse/Aweme/exportFromiPhone/iPhone7P-1341/Aweme.app/Frameworks/AwemeCore.framework
  
  ➜  AwemeCore.framework ll
  total 10208480
  -rw-r--r--  1 crifan  staff   230M  1  8 09:43 AwemeCore
  

-l

➜  AwemeCore.framework otool -l AwemeCore > otool_l_AwemeCore.txt

输出内容（很多，有2000多行）：

AwemeCore:
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      cmd LC_SEGMENT_64
  cmdsize 1752
  segname __TEXT
   vmaddr 0x0000000000000000
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Section
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Section
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Section
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Section
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...
Section
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Section
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Section
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Section
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Load command 2
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Section
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Section
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Load command 3
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...
Section
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Section
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Load command 5
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Load command 7
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  version 10.0
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Load command 12
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         name /usr/lib/libcompression.dylib (offset 24)
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compatibility version 1.0.0
...
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compatibility version 1.0.0
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compatibility version 1.0.0
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         path /usr/lib/swift (offset 12)
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         path @executable_path/Frameworks (offset 12)
Load command 127
          cmd LC_RPATH
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         path @loader_path/Frameworks (offset 12)
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          cmd LC_RPATH
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          cmd LC_RPATH
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         path @executable_path/Frameworks (offset 12)
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-oV

➜  AwemeCore.framework otool -oV AwemeCore > otool_oV_AwemeCore.txt

输出（共16万行）：

AwemeCore:
Contents of (__DATA,__objc_classlist) section
00000000003221c8 0x9acaf0
    isa        0x9acac8
    superclass 0x0 _OBJC_CLASS_$_NSObject
    cache      0x0 __objc_empty_cache
    vtable     0x0
    data       0x37f798
        flags          0x0
        instanceStart  8
        instanceSize   12
        reserved       0x0
        ivarLayout     0x0
        name           0xe1100a BDLDecompressor_AwemeCore
        baseMethods    0x37f708
            entsize 24
            count   3
            name    0xd86870 copyWithZone:
            types   0xdf3478 @24@0:8^{_NSZone=}16
            imp     0x5babaf0
            name    0xd84267 foo
            types   0xdf34a7 i16@0:8
            imp     0x5bac0a0
            name    0xd84298 setFoo:
            types   0xdf34af v20@0:8i16
            imp     0x5bac0a8
        baseProtocols  0x37f6a8
            count    1
            list[0]  0x9bd758
                isa       0x0
                name      0xe11497 NSCopying
                protocols 0x0
                instanceMethods 0x38ffe8
                    entsize 24
                    count   1
                    name    0xd86870 copyWithZone:
                    types   0xdf3478 @24@0:8^{_NSZone=}16
                    imp     0x0
                classMethods 0x0
                optionalInstanceMethods 0x0
                optionalClassMethods 0x0
                instanceProperties 0x0
        ivars          0x37f758
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            count     1
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            name      0xd842a0 _foo
            type      0xdf34ba i
            alignment 2
            size      4
        weakIvarLayout 0x0
        baseProperties 0x37f780
            entsize    16
            count      1
            name       0xd84267 foo
            attributes 0xd842a5 Ti,N,V_foo
Meta Class
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...
000000000037f630 0xd54b90
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    name      0xf4bbac BDXVideoCorePlayerDelegate
    protocols 0x0
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    classMethods 0x0
    optionalInstanceMethods 0x0
    optionalClassMethods 0x0
    instanceProperties 0x0
000000000037f638 0xd54bf0
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    name      0xf4bbc7 BDXVideoPlayProgressDelegate
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    optionalClassMethods 0x0
    instanceProperties 0x0
000000000037f640 0xd54d90
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    classMethods 0x0
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    optionalClassMethods 0x0
    instanceProperties 0x0
000000000037f648 0xd55890
    isa       0x0
    name      0xf4bf19 YYWebImageOperation
    protocols 0x0
    instanceMethods 0x0
    classMethods 0x0
    optionalInstanceMethods 0x0
    optionalClassMethods 0x0
    instanceProperties 0x0
Contents of (__DATA,__objc_selrefs) section
    0xd84267 foo
Contents of (__DATA,__objc_imageinfo) section
    version 0
    flags   0x5010700 Swift 5 or later

输出内容分析

其中也有AWECloudJailBreakUtility：

0000000000322a18 0x9bf000
    isa        0x9befd8
    superclass 0x0 _OBJC_CLASS_$_NSObject
    cache      0x0 __objc_empty_cache
    vtable     0x0
    data       0x3921f8
        flags          0x80
        instanceStart  8
        instanceSize   8
        reserved       0x0
        ivarLayout     0x0
        name           0xe12aaf AWECloudJailBreakUtility
        baseMethods    0x0
        baseProtocols  0x0
        ivars          0x0
        weakIvarLayout 0x0
        baseProperties 0x0
Meta Class
    isa        0x0 _OBJC_METACLASS_$_NSObject
    superclass 0x0 _OBJC_METACLASS_$_NSObject
    cache      0x0 __objc_empty_cache
    vtable     0x0
    data       0x3921b0
        flags          0x81 RO_META
        instanceStart  40
        instanceSize   40
        reserved       0x0
        ivarLayout     0x0
        name           0xe12aaf AWECloudJailBreakUtility
        baseMethods    0x0
        baseProtocols  0x0
        ivars          0x0
        weakIvarLayout 0x0
        baseProperties 0x0

且信息更全：

• 父类=superclass是：_OBJC_METACLASS_$_NSObject

对于：

• name 0xe12aaf AWECloudJailBreakUtility
  • ->好像是：AWECloudJailBreakUtility这个类的位置是0xe12aaf

-》如果是：则就是我们之前，曾想要的：

通过类名字：AWECloudJailBreakUtility

去寻找其具体地址：0xe12aaf

-> 用于去后续（lldb、XCode等）调试中，去打断点

另外搜：jail

也是能搜到，类似于strings找到的几个：

Meta Class
    isa        0x0 _OBJC_METACLASS_$_NSObject
    superclass 0x0 _OBJC_METACLASS_$_NSObject
    cache      0x0 __objc_empty_cache
    vtable     0x0
    data       0x3a71e0
        flags          0x81 RO_META
        instanceStart  40
        instanceSize   40
        reserved       0x0
        ivarLayout     0x0
        name           0xe163f6 BDInstallNetworkUtility
        baseMethods    0x3a70e8
            entsize 24
            count   10
            name    0xd842dd load
            types   0xdf33c3 v16@0:8
            imp     0x5927654
            name    0xd8dbc6 onTheFlyParameter
            types   0xdf33de @16@0:8
            imp     0x5f8d0dc
            name    0xd8dc1d commonURLParameters
            types   0xdf33de @16@0:8
            imp     0x5f8e628
            name    0xd8dc31 buildQueryFromDictionary:
            types   0xdf3380 @24@0:8@16
            imp     0x5f8edf4
            name    0xd8dc83 isUpgradeUser
            types   0xdf3410 B16@0:8
            imp     0x5f8f07c
            name    0xd8c1d2 isJailBroken
            types   0xdf3410 B16@0:8
            imp     0x5f8f23c
            name    0xd8dc91 decodeBase64String:
            types   0xdf3380 @24@0:8@16
            imp     0x5f8f3c8
            name    0xd8c1df resolutionString
            types   0xdf33de @16@0:8
            imp     0x5f8f44c
            name    0xd8c2a6 appDisplayName
            types   0xdf33de @16@0:8
            imp     0x5f8f528
            name    0xd8dc7a platform
            types   0xdf33de @16@0:8
            imp     0x5f8f62c
        baseProtocols  0x0
        ivars          0x0
        weakIvarLayout 0x0
        baseProperties 0x0

-》很明显，信息更全：

可以知道：

• symbol=符号=函数=function：isJailBroken
  • 所属的类是：BDInstallNetworkUtility
    • name 0xe163f6 BDInstallNetworkUtility
      • superclass 0x0 _OBJC_METACLASS_$_NSObject

其他还有一个：isJailBroken

Meta Class
    isa        0x0 _OBJC_METACLASS_$_NSObject
    superclass 0x0 _OBJC_METACLASS_$_NSObject
    cache      0x0 __objc_empty_cache
    vtable     0x0
    data       0x5f3678
        flags          0x81 RO_META
        instanceStart  40
        instanceSize   40
        reserved       0x0
        ivarLayout     0x0
        name           0xe8e38c TTInstallUtil
        baseMethods    0x5f34c0
            entsize 24
            count   18
            name    0xdc6a5b generateMockDeviceInfo
            types   0xdf33c3 v16@0:8
            imp     0x92ee848
            name    0xdc6a72 setResetMode:
            types   0xdf339e v20@0:8B16
            imp     0x92ee988
            name    0xdc6a80 isResetMode
            types   0xdf3410 B16@0:8
            imp     0x92eeab0
            name    0xd8fa16 setAutoReset:
            types   0xdf339e v20@0:8B16
            imp     0x92eeb1c
            name    0xd8fa24 isAutoReset
            types   0xdf3410 B16@0:8
            imp     0x92eeb74
            name    0xdc6a1e clearAllUserDefaultsData
            types   0xdf33c3 v16@0:8
            imp     0x92eebd0
            name    0xd842dd load
            types   0xdf33c3 v16@0:8
            imp     0x5927238
            name    0xd8bb2a uuid
            types   0xdf33de @16@0:8
            imp     0x92ec3f0
            name    0xd8dbc6 onTheFlyParameter
            types   0xdf33de @16@0:8
            imp     0x92ec444
            name    0xdc69ef isInHouseVersion
            types   0xdf3410 B16@0:8
            imp     0x5981a34
            name    0xd8dc1d commonURLParameters
            types   0xdf33de @16@0:8
            imp     0x92ed7e4
            name    0xd8dc31 buildQueryFromDictionary:
            types   0xdf3380 @24@0:8@16
            imp     0x92ee034
            name    0xd8dc83 isUpgradeUser
            types   0xdf3410 B16@0:8
            imp     0x92ee2bc
            name    0xdc6a00 loadUserDefaultsStringForKey:
            types   0xdf3380 @24@0:8@16
            imp     0x92ee4b0
            name    0xd8c1df resolutionString
            types   0xdf33de @16@0:8
            imp     0x92ee534
            name    0xd8c1d2 isJailBroken
            types   0xdf3410 B16@0:8
            imp     0x92ee610
            name    0xd8dc7a platform
            types   0xdf33de @16@0:8
            imp     0x92ee6f0
            name    0xd86653 authorizationStatus
            types   0xdf3437 Q16@0:8
            imp     0x92ee788
        baseProtocols  0x0
        ivars          0x0
        weakIvarLayout 0x0
        baseProperties 0x0

-》

• name 0xd8c1d2 isJailBroken
  • name 0xe8e38c TTInstallUtil
    • data 0x5f3678

其他几个：

000000000036aa78 0x3cd4a0
    name      0xe1bc2c BDXAdditions
    cls       0x0 _OBJC_CLASS_$_UIDevice
    instanceMethods 0x0
    classMethods 0x3cd150
        entsize 24
        count   35
        name    0xd98274 bdx_runningProcesses
        types   0xdf33de @16@0:8
        imp     0x62225dc
        name    0xd98227 getSysInfoByName:
        types   0xe05b74 @24@0:8*16
        imp     0x62228e8
        name    0xd98239 bdx_platform
        types   0xdf33de @16@0:8
        imp     0x6222960
        name    0xd98289 bdx_hwmodel
        types   0xdf33de @16@0:8
        imp     0x6222974
        name    0xd98246 bdx_platformType
        types   0xdf3437 Q16@0:8
        imp     0x6222988
        name    0xd981c1 bdx_platformName
        types   0xdf33de @16@0:8
        imp     0x62234c0
        name    0xd98295 bdx_platformString
        types   0xdf33de @16@0:8
        imp     0x622350c
        name    0xd98257 bdx_OSVersion
        types   0xdf33de @16@0:8
        imp     0x6223a28
        name    0xd982a8 bdx_OSVersionNumber
        types   0xdf34c8 f16@0:8
        imp     0x6223a74
        name    0xd982bc bdx_currentLanguage
        types   0xdf33de @16@0:8
        imp     0x6223ac0
        name    0xd982d0 bdx_currentRegion
        types   0xdf33de @16@0:8
        imp     0x6223b10
        name    0xd982e2 bdx_isJailBroken
        types   0xdf3410 B16@0:8
        imp     0x6223b68
        name    0xd982f3 bdx_carrierName
        types   0xdf33de @16@0:8
        imp     0x6223bfc
        name    0xd98303 bdx_carrierMCC
        types   0xdf33de @16@0:8
        imp     0x6223c64
        name    0xd98312 bdx_carrierMNC
        types   0xdf33de @16@0:8
        imp     0x6223ccc
        name    0xd98321 bdx_poorDevice
        types   0xdf3410 B16@0:8
        imp     0x6223d34
        name    0xd98330 bdx_screenScale
        types   0xdf3396 d16@0:8
        imp     0x6223dec
        name    0xd98340 bdx_is480Screen
        types   0xdf3410 B16@0:8
        imp     0x6223e38
        name    0xd98350 bdx_is568Screen
        types   0xdf3410 B16@0:8
        imp     0x6223e90
        name    0xd98360 bdx_is667Screen
        types   0xdf3410 B16@0:8
        imp     0x6223ee8
        name    0xd98370 bdx_is736Screen
        types   0xdf3410 B16@0:8
        imp     0x6223f40
        name    0xd98380 bdx_is812Screen
        types   0xdf3410 B16@0:8
        imp     0x6223f98
        name    0xd98390 bdx_is896Screen
        types   0xdf3410 B16@0:8
        imp     0x6223ff0
        name    0xd983a0 bdx_isScreenWidthLarge320
        types   0xdf3410 B16@0:8
        imp     0x6224048
        name    0xd96d2c bdx_isIPhoneXSeries
        types   0xdf3410 B16@0:8
        imp     0x62240ac
        name    0xd983ba bdx_screenSize
        types   0xdf420a {CGSize=dd}16@0:8
        imp     0x6224310
        name    0xd983c9 bdx_screenWidth
        types   0xdf3396 d16@0:8
        imp     0x622436c
        name    0xd983d9 bdx_screenHeight
        types   0xdf3396 d16@0:8
        imp     0x62243b8
        name    0xd983ea bdx_isPadDevice
        types   0xdf3410 B16@0:8
        imp     0x6224404
        name    0xd98265 bdx_resolution
        types   0xdf420a {CGSize=dd}16@0:8
        imp     0x6224454
        name    0xd983fa bdx_resolutionString
        types   0xdf33de @16@0:8
        imp     0x62244e8
        name    0xd9840f bdx_onePixel
        types   0xdf3396 d16@0:8
        imp     0x6224534
        name    0xd9841c bdx_deviceWidthType
        types   0xdf3437 Q16@0:8
        imp     0x62245a4
        name    0xd98430 bdx_getTotalDiskSpace
        types   0xdf3302 q16@0:8
        imp     0x62246f4
        name    0xd98446 bdx_getFreeDiskSpace
        types   0xdf3302 q16@0:8
        imp     0x62247b0
    protocols 0x0
    instanceProperties 0x0

-》

• name 0xd982e2 bdx_isJailBroken
  • name 0xe1bc2c BDXAdditions
  • cls 0x0 _OBJC_CLASS_$_UIDevice
    • 000000000036aa78 0x3cd4a0

以及：

000000000036aba8 0x3d60e0
    name      0xe1ce54 BTDAdditions
    cls       0x0 _OBJC_CLASS_$_UIDevice
    instanceMethods 0x0
    classMethods 0x3d5d90
        entsize 24
        count   35
        name    0xd99a94 btd_runningProcesses
        types   0xdf33de @16@0:8
        imp     0x62a5ec0
        name    0xd98227 getSysInfoByName:
        types   0xe05b74 @24@0:8*16
        imp     0x59911f8
        name    0xd8df0a btd_platform
        types   0xdf33de @16@0:8
        imp     0x59911e4
        name    0xd99aa9 btd_hwmodel
        types   0xdf33de @16@0:8
        imp     0x62a6230
        name    0xd99a74 btd_platformType
        types   0xdf3437 Q16@0:8
        imp     0x62a6244
        name    0xd8d746 btd_platformName
        types   0xdf33de @16@0:8
        imp     0x62a718c
        name    0xd8d733 btd_platformString
        types   0xdf33de @16@0:8
        imp     0x62a71e8
        name    0xd8c129 btd_OSVersion
        types   0xdf33de @16@0:8
        imp     0x5991188
        name    0xd99ab5 btd_OSVersionNumber
        types   0xdf34c8 f16@0:8
        imp     0x5b74794
        name    0xd8d757 btd_currentLanguage
        types   0xdf33de @16@0:8
        imp     0x62a75e4
        name    0xd99ac9 btd_currentRegion
        types   0xdf33de @16@0:8
        imp     0x62a7644
        name    0xd99adb btd_isJailBroken
        types   0xdf3410 B16@0:8
        imp     0x62a76ac
        name    0xd99aec btd_carrierName
        types   0xdf33de @16@0:8
        imp     0x62a7760
        name    0xd99afc btd_carrierMCC
        types   0xdf33de @16@0:8
        imp     0x62a77e0
        name    0xd99b0b btd_carrierMNC
        types   0xdf33de @16@0:8
        imp     0x62a7860
        name    0xd99b1a btd_poorDevice
        types   0xdf3410 B16@0:8
        imp     0x62a78e0
        name    0xd99b29 btd_screenScale
        types   0xdf3396 d16@0:8
        imp     0x62a79d4
        name    0xd99b39 btd_is480Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7a30
        name    0xd99b49 btd_is568Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7aa0
        name    0xd99b59 btd_is667Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7b10
        name    0xd99b69 btd_is736Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7b80
        name    0xd99b79 btd_is812Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7bf0
        name    0xd99b89 btd_is896Screen
        types   0xdf3410 B16@0:8
        imp     0x62a7c60
        name    0xd99b99 btd_isScreenWidthLarge320
        types   0xdf3410 B16@0:8
        imp     0x62a7cd0
        name    0xd8cbb0 btd_isIPhoneXSeries
        types   0xdf3410 B16@0:8
        imp     0x62a7d44
        name    0xd99bb3 btd_screenSize
        types   0xdf420a {CGSize=dd}16@0:8
        imp     0x62a8004
        name    0xd99bc2 btd_screenWidth
        types   0xdf3396 d16@0:8
        imp     0x5991320
        name    0xd99bd2 btd_screenHeight
        types   0xdf3396 d16@0:8
        imp     0x599137c
        name    0xd99be3 btd_isPadDevice
        types   0xdf3410 B16@0:8
        imp     0x5b1743c
        name    0xd99a85 btd_resolution
        types   0xdf420a {CGSize=dd}16@0:8
        imp     0x5a03198
        name    0xd99bf3 btd_resolutionString
        types   0xdf33de @16@0:8
        imp     0x62a8068
        name    0xd99c08 btd_onePixel
        types   0xdf3396 d16@0:8
        imp     0x5b19920
        name    0xd99c15 btd_deviceWidthType
        types   0xdf3437 Q16@0:8
        imp     0x62a80b4
        name    0xd99c29 btd_getTotalDiskSpace
        types   0xdf3302 q16@0:8
        imp     0x62a8224
        name    0xd99c3f btd_getFreeDiskSpace
        types   0xdf3302 q16@0:8
        imp     0x62a8324
    protocols 0x0
    instanceProperties 0x0

-》

• name 0xd99adb btd_isJailBroken
  • name 0xe1ce54 BTDAdditions
  • cls 0x0 OBJC_CLASS$_UIDevice

-》前面2个：

• BDXAdditions
• BTDAdditions

都是属于：

• cls 0x0 _OBJC_CLASS_$_UIDevice

-》估计都是：

• 集成自 = 父类是：UIDevice

另外：

• BTDAdditions
  • btd_carrierName
  • btd_carrierMCC
  • btd_carrierMNC
  • btd_poorDevice

等，好像和：

• 检测当前设备信息
• 改机参数

有关 -》 也算是，和检测越狱有关？

-tV

➜  AwemeCore.framework otool -tV AwemeCore > otool_tV_AwemeCore.txt

输出：

AwemeCore:
(__TEXT,__text) section