mac Catalyst, EXC_CRASH (Code Signature Invalid), Xcode 12.1

Question

Created Nov ’20

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I'm trying to convert iOS application with support for iPhones and iPads to a mac Catalyst enabled application. I was able to build it successfully, but I'm unable to run it.
It crashes every time with the following error retrieved from Console.

Code Block Date/Time:             2020-11-03 18:12:03.568 +0100OS Version:            Mac OS X 10.15.7 (19H2)
Report Version:        12
Bridge OS Version:     4.6 (17P6610)
Anonymous UUID:        3228F646-0337-CCB2-D4B3-41A73C8D5C68
Sleep/Wake UUID:       F1A5472C-EBEC-4CBC-8FEA-8EE8257398D2
Time Awake Since Boot: 78000 seconds
Time Since Wake:       1400 seconds
System Integrity Protection: enabled
Crashed Thread:        0
Exception Type:        EXC_CRASH (Code Signature Invalid)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY
kernel messages:
VM Regions Near 0 (cr2):
--> 
    TEXT                 0000000100000000-0000000100038000 [  224K] r-x/r-x SM=COW  
Thread 0 Crashed:
0   ???                           	0x0000000100079000 _dyld_start + 0
Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x0000000000000000  rcx: 0x0000000000000000  rdx: 0x0000000000000000
  rdi: 0x0000000000000000  rsi: 0x0000000000000000  rbp: 0x0000000000000000  rsp: 0x00007ffeefbff368
   r8: 0x0000000000000000   r9: 0x0000000000000000  r10: 0x0000000000000000  r11: 0x0000000000000000
  r12: 0x0000000000000000  r13: 0x0000000000000000  r14: 0x0000000000000000  r15: 0x0000000000000000
  rip: 0x0000000100079000  rfl: 0x0000000000000200  cr2: 0x0000000000000000
  
Logical CPU:     0
Error Code:      0x00000000
Trap Number:     0
Binary Images:
       0x100000000 -        0x100037fff +??? (0) <F1126CDD-A67C-3FAA-8727-863815CDC5D7> (null)
       0x100078000 -        0x100109f47 +??? (750.6) <1D318D60-C9B0-3511-BE9C-82AFD2EF930D> (null)
External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 174379
    thread_create: 0
    thread_set_state: 195
VM Region Summary:
ReadOnly portion of Libraries: Total=1196K resident=0K(0%) swapped_out_or_unallocated=1196K(100%)
Writable regions: Total=8404K written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=8404K(100%)
 
                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
STACK GUARD                       56.0M        1 
Stack                             8192K        1 
DATA                             248K        3 
DATA_CONST                        52K        2 
LINKEDIT                         416K        3 
__TEXT                             808K        2 
shared memory                        8K        2 
===========                     =======  ======= 
TOTAL                             65.5M       14

I've verified that the provisioning profile is valid and App ID contains Catalyst. The app embeds packet tunnel extension which has its own target. Signing for both targets is managed manually.
Can someone help me shed light on the cause of this crash? I asked other experienced mac devs in my company but they don't understand it either.

Boost

Answer 1

DTS Engineer OP

Apple

Nov ’20

Probably like this are most commonly caused by an entitlement / provisioning profile mismatch. Dump your app’s entitlements and the entitlement allowlist in the profile and make sure that every entitlement is in that allowlist.

To dump the app’s entitlements:

Code Block  % codesign -d --entitlements :- /path/to/your.app

To dump the profile:

Code Block  % security cms -D -i /path/to/your.app/Contents/embedded.provisionprofile

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

1

Answer 2

MartinStrambach OP

Nov ’20

Thanks for the reply. I found out that our app was missing com.apple.developer.networking.HotspotHelper entitlement in the app provisioning profile. The same entitlement in a network extension doesn't cause the app to crash.
The problem is, I can't generate mac Catalyst profile with this entitlement because I don't see this option in the developer portal. It works for iOS provisioning profiles with the same App ID (the iOS version is already released with this entitlement).
Is HotspotHelper entitlement granted per platform or is there any other way how to use it with mac Catalyst?

0

Answer 3

DTS Engineer OP

Apple

Nov ’20

Is HotspotHelper entitlement granted per platform

Yes.

Keep in mind that the com.apple.developer.networking.HotspotHelper entitlement enables access to NEHotspotHelper and that’s an iOS-only feature. You don’t need this entitlement on macOS because it doesn’t enable anything on that platform.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

0