- Login to iTunes Connect
- Go to the Scry app.
- Navigate to the "Activity" section.
- Find the corresponding build.
- Downloaf the dSYM.
- On your iPhone, open the settings App.
- Go to the privacy section.
- Select "Analytics".
- Switch "Share iPhone & Watch Analytics" on.
- Switch "Share with App Developers" on.
- Make your iPhone crash on a release build & obtain the
.dSym - Sync your phone with iTunes. Recent crashes should be transfeered to itunes.
- Upon completion, open terminal and
cd ~/Library/Logs/CrashReporter/MobileDevice/*
- If the one of the above directories could not be resolved or the directory is empty (known bug with iTunes 12.7|Sierra):
- On your iPhone, open the settings App.
- Go to the privacy section.
- Select "Analytics"
- Select "Analytics Data"
- Scroll down to find the crash log prefixed with "Scry" from the date/time your are trying to find.
- Click the share navigation bar item.
- Email the log to yourself.
- If the directory has logs
- Open the directory in the text editor of your choosing.
- Traverse the file tree the crash log prefixed with "Scry" from the date/time you are tying to find.
- Open the log file.
- If the file does not have the extension
.crash(eg:.ips): rename it to use.ips - Should look similar to the following:
{"app_name":"Scry","timestamp":"2017-11-19 03:18:13.49 -0500","app_version":"1.0.7","slice_uuid":"0f63f51e-c1cf-39a1-9616-bb72b32d1431","adam_id":1260397992,"build_version":"2","bundleID":"com.scry.Scry3","share_with_app_devs":false,"is_first_party":false,"bug_type":"109","os_version":"iPhone OS 11.0.3 (15A432)","incident_id":"FD89E293-0850-43BE-9A87-654F9DEFE299","name":"Scry"}
Incident Identifier: FD89E293-0850-43BE-9A87-654F9DEFE299
CrashReporter Key: 9ab37eaecfcae77047e19ab0201e130b0253a649
Hardware Model: iPhone9,2
Process: Scry [5477]
Path: /private/var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Scry
Identifier: com.scry.Scry3
Version: 2 (1.0.7)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: com.scry.Scry3 [2367]
Date/Time: 2017-11-19 03:18:12.8811 -0500
Launch Time: 2017-11-19 01:56:36.1410 -0500
OS Version: iPhone OS 11.0.3 (15A432)
Baseband Version: 3.00.00
Report Version: 104
Exception Type: EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: Namespace <0xF>, Code 0x8badf00d
Triggered by Thread: 0
Filtered syslog:
None found
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 GraphicsServices 0x00000001837fbf84 0x1837f1000 + 44932
6 UIKit 0x000000018af17880 0x18aea4000 + 473216
7 Scry 0x000000010093d62c 0x100938000 + 22060
8 libdyld.dylib 0x000000018148e56c 0x18148d000 + 5484
Thread 1 name: com.apple.uikit.eventfetch-thread
Thread 1:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 Foundation 0x00000001823926e4 0x182386000 + 50916
6 Foundation 0x00000001823b1afc 0x182386000 + 178940
7 UIKit 0x000000018ba6302c 0x18aea4000 + 12316716
8 Foundation 0x0000000182493860 0x182386000 + 1103968
9 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
10 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
11 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 2 name: com.twitter.crashlytics.ios.MachExceptionServer
Thread 2:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 Scry 0x0000000100a29708 0x100938000 + 988936
3 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
4 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
5 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 3 name: com.apple.NSURLConnectionLoader
Thread 3:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 CFNetwork 0x00000001820d3b40 0x182025000 + 715584
6 Foundation 0x0000000182493860 0x182386000 + 1103968
7 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
8 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
9 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 4:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 Foundation 0x00000001823926e4 0x182386000 + 50916
6 Rollbar 0x0000000101293838 0x101288000 + 47160
7 Foundation 0x0000000182493860 0x182386000 + 1103968
8 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
9 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
10 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 5:
0 libsystem_kernel.dylib 0x00000001815bd150 0x18159c000 + 135504
1 libsystem_pthread.dylib 0x00000001816d2d40 0x1816ce000 + 19776
2 libc++.1.dylib 0x0000000180f3bea4 0x180f34000 + 32420
3 JavaScriptCore 0x0000000188ce8b30 0x1883a3000 + 9722672
4 JavaScriptCore 0x0000000188ce8a58 0x1883a3000 + 9722456
5 JavaScriptCore 0x0000000188ce8dbc 0x1883a3000 + 9723324
6 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
7 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
8 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 6 name: com.apple.CFNetwork.CustomProtocols
Thread 6:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 CFNetwork 0x0000000182252928 0x182025000 + 2283816
6 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
7 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
8 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 7 name: com.apple.CFSocket.private
Thread 7:
0 libsystem_kernel.dylib 0x00000001815bd570 0x18159c000 + 136560
1 CoreFoundation 0x0000000181a5421c 0x181962000 + 991772
2 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
3 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
4 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 8 name: AVAudioSession Notify Thread
Thread 8:
0 libsystem_kernel.dylib 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 AVFAudio 0x0000000187233774 0x1871af000 + 542580
6 AVFAudio 0x000000018725e018 0x1871af000 + 716824
7 libsystem_pthread.dylib 0x00000001816d032c 0x1816ce000 + 9004
8 libsystem_pthread.dylib 0x00000001816d01f8 0x1816ce000 + 8696
9 libsystem_pthread.dylib 0x00000001816cec38 0x1816ce000 + 3128
Thread 9:
0 libsystem_pthread.dylib 0x00000001816cec2c 0x1816ce000 + 3116
Thread 10:
0 libsystem_pthread.dylib 0x00000001816cec2c 0x1816ce000 + 3116
Thread 11:
0 libsystem_pthread.dylib 0x00000001816cec2c 0x1816ce000 + 3116
Thread 12:
0 libsystem_pthread.dylib 0x00000001816cec2c 0x1816ce000 + 3116
Thread 0 crashed with ARM Thread State (64-bit):
x0: 0x0000000010004005 x1: 0x0000000007000806 x2: 0x0000000000000000 x3: 0x0000000000000c00
x4: 0x0000000000002603 x5: 0x00000000ffffffff x6: 0x0000000000000000 x7: 0x0000000000000001
x8: 0x00000000fffffbbf x9: 0x0000000007000000 x10: 0x0000000007000100 x11: 0x0000000000000040
x12: 0xffffffffffffffff x13: 0x0000000000000001 x14: 0x0215540002155400 x15: 0x0000000000000000
x16: 0xffffffffffffffe1 x17: 0x00000000ffffffff x18: 0x0000000000000000 x19: 0x0000000000000000
x20: 0x00000000ffffffff x21: 0x0000000000002603 x22: 0x0000000000000c00 x23: 0x000000016f4c6d68
x24: 0x0000000007000806 x25: 0x0000000000000000 x26: 0x0000000007000806 x27: 0x0000000000000c00
x28: 0x0000000000000001 fp: 0x000000016f4c6c60 lr: 0x000000018159ca3c
sp: 0x000000016f4c6c10 pc: 0x000000018159cbc4 cpsr: 0x60000000
Binary Images:
0x100938000 - 0x100aa3fff Scry arm64 <0f63f51ec1cf39a19616bb72b32d1431> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Scry
0x100b14000 - 0x100b2bfff Bolts arm64 <5e3164d5ab013efc91ec5cf562cc5746> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Frameworks/Bolts.framework/Bolts
0x100b3c000 - 0x100b47fff DACircularProgress arm64 <6a01204b69303fcdba2ca648978e2852> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Frameworks/DACircularProgress.framework/DACircularProgress
0x100b54000 - 0x100b6ffff FBSDKLoginKit arm64 <453adce91cf63f7f90989fc57c896196> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Frameworks/FBSDKLoginKit.framework/FBSDKLoginKit
0x100b84000 - 0x100bc3fff dyld arm64 <113803ec7f6936e6b06abef57a8755fd> /usr/lib/dyld
0x100c20000 - 0x100c9ffff Alamofire arm64 <dd0d93f398b63bfaae6d130d04d1476f> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Frameworks/Alamofire.framework/Alamofire
0x100cc8000 - 0x100d1ffff FBSDKCoreKit arm64 <ccea46b697ec354080720d9de111d00a> /var/containers/Bundle/Application/848A7FA5- 1251-4841-9196-
- Look up documentation for any
Exception *orTermination *information if provided (toward the top).
- If the problem is stemming from a system service, this could tell us a lot.
- Examine the stack frame for the corresponding thread that the crash occured on.
- In the case of the above binary, the exception is rooted in a sys library. But say it was stemming from our code, we might see:
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 Scry 0x000000018159cbc4 0x18159c000 + 3012
1 libsystem_kernel.dylib 0x000000018159ca3c 0x18159c000 + 2620
2 CoreFoundation 0x0000000181a4bce4 0x181962000 + 957668
3 CoreFoundation 0x0000000181a498b0 0x181962000 + 948400
4 CoreFoundation 0x000000018196a2d8 0x181962000 + 33496
5 GraphicsServices 0x00000001837fbf84 0x1837f1000 + 44932
6 UIKit 0x000000018af17880 0x18aea4000 + 473216
7 Scry 0x000000010093d62c 0x100938000 + 22060
8 libdyld.dylib
format for the above log:
PROCESS_INDEX BINARY_NAME MEMORY_ADDRESS
- Take note of all suspicious indexes
- For instance, if I wanted to symbolicate index 0. I'd need to know:
- The
BINARY_NAME: (Scry) - The
MEMORY_ADRESS_TO_SYMBOLICATE: (0x000000018159cbc4)
- The
- Get binary information for symbolication of the suspicious index.
- Search the
Binary Imagessection at the bottom of the log for the relevant binary. - For instance from the following:
0x100938000 - 0x100aa3fff Scry arm64 <0f63f51ec1cf39a19616bb72b32d1431> /var/containers/Bundle/Application/848A7FA5-1251-4841-9196-E1DA8F0F3720/Scry.app/Scry
where format is:
LOAD_ADDRESS BINARY_NAME BINARY_ARCHITECTURE UUID
- This tells us:
- The
BINARY_ARCHITECTURE: (arm64) - The
LOAD_ADDRESS: (0x100938000)
- The
- Symbolicate suspicous indexes in the stack using
atos
- For more information on
atos,man atos - Using the previous information form a command with the following format:
atos -arch BINARY_ARCHITECTURE PATH_TO_DSYM_FILE/Contents/Resources/DWARF/BINARY_NAME -l LOAD_ADDRESS MEMORY_ADDRESS_TO_SYMBOLICATE - In this case our command tring would read
atos -arch arm64 Scry.app.dSYM/Contents/Resources/Scry -l 0x100938000 0x000000018159cbc4
- Examine the output
- The command will ouytput a string describing the root of the exception.
- It may return a primary class and a method suych ad the following:
- [TinderChatLogViewController loadConversation]
- Find the bug.
- Now that you have a general idea of where the problem lies, you can try to look for your flawed logic.