I'm using XCode 11.6 trying to get to the bottom of a Safari App Extension crash. I get an exception when I have the extension tab open and open a new Safari tab in the browser. That being said, my debugger when running locally does break, but does so in raw hex encoded gibberish which I'm not able to figure out how to read, understand, symbolicate, etc. because this isn't a "crash log" or in the same format either.
It notes, Thread <n>: EXC_BAD_ACCESS (code=1, address=0x10) in the debugger, and highlights line 26 from the below (this thread in the debug view is in com.apple.NSXPCConnection.user.endpoint)
How the heck do I use this? I can debug and step through all this nonsense from my swift code and get to the line that throws the exception, the only things in my watch are Registers for Exception State, Floating Point and General Purpose.
It notes, Thread <n>: EXC_BAD_ACCESS (code=1, address=0x10) in the debugger, and highlights line 26 from the below (this thread in the debug view is in com.apple.NSXPCConnection.user.endpoint)
Code Block binary SafariServices`__72-[SFSafariWindow openTabWithURL:makeActiveIfPossible:completionHandler:]_block_invoke: 0x7fff41c3cf37 <+0>: pushq %rbp 0x7fff41c3cf38 <+1>: movq %rsp, %rbp 0x7fff41c3cf3b <+4>: pushq %r15 0x7fff41c3cf3d <+6>: pushq %r14 0x7fff41c3cf3f <+8>: pushq %rbx 0x7fff41c3cf40 <+9>: pushq %rax 0x7fff41c3cf41 <+10>: movq %rdi, %r15 0x7fff41c3cf44 <+13>: movq %rsi, %rdi 0x7fff41c3cf47 <+16>: callq *0x4cf1011b(%rip) ; (void *)0x00007fff6e7ce6d0: objc_retain 0x7fff41c3cf4d <+22>: movq %rax, %r14 0x7fff41c3cf50 <+25>: movq 0x20(%r15), %rdi 0x7fff41c3cf54 <+29>: movq 0x4cf17415(%rip), %rsi ; "_extensionContext" 0x7fff41c3cf5b <+36>: callq *0x4cf100f7(%rip) ; (void *)0x00007fff6e7ce800: objc_msgSend 0x7fff41c3cf61 <+42>: movq %rax, %rdi 0x7fff41c3cf64 <+45>: callq 0x7fff41c3dc76 ; symbol stub for: objc_retainAutoreleasedReturnValue 0x7fff41c3cf69 <+50>: movq %rax, %rbx 0x7fff41c3cf6c <+53>: movq 0x4cf17125(%rip), %rsi ; "set_extensionContext:" 0x7fff41c3cf73 <+60>: movq %r14, %rdi 0x7fff41c3cf76 <+63>: movq %rax, %rdx 0x7fff41c3cf79 <+66>: callq *0x4cf100d9(%rip) ; (void *)0x00007fff6e7ce800: objc_msgSend 0x7fff41c3cf7f <+72>: movq %rbx, %rdi 0x7fff41c3cf82 <+75>: callq *0x4cf100d8(%rip) ; (void *)0x00007fff6e7d0660: objc_release 0x7fff41c3cf88 <+81>: movq 0x28(%r15), %rdi 0x7fff41c3cf8c <+85>: movq %r14, %rsi -> 0x7fff41c3cf8f <+88>: callq *0x10(%rdi) 0x7fff41c3cf92 <+91>: movq %r14, %rdi 0x7fff41c3cf95 <+94>: addq $0x8, %rsp 0x7fff41c3cf99 <+98>: popq %rbx 0x7fff41c3cf9a <+99>: popq %r14 0x7fff41c3cf9c <+101>: popq %r15 0x7fff41c3cf9e <+103>: popq %rbp 0x7fff41c3cf9f <+104>: jmpq *0x4cf100bb(%rip) ; (void *)0x00007fff6e7d0660: objc_release 0x7fff41c3cfa5 <+110>: movq %rax, %r15 0x7fff41c3cfa8 <+113>: movq %rbx, %rdi 0x7fff41c3cfab <+116>: callq *0x4cf100af(%rip) ; (void *)0x00007fff6e7d0660: objc_release 0x7fff41c3cfb1 <+122>: jmp 0x7fff41c3cfb6 ; <+127> 0x7fff41c3cfb3 <+124>: movq %rax, %r15 0x7fff41c3cfb6 <+127>: movq %r14, %rdi 0x7fff41c3cfb9 <+130>: callq *0x4cf100a1(%rip) ; (void *)0x00007fff6e7d0660: objc_release 0x7fff41c3cfbf <+136>: movq %r15, %rdi 0x7fff41c3cfc2 <+139>: callq 0x7fff41c3db8c ; symbol stub for: _Unwind_Resume 0x7fff41c3cfc7 <+144>: ud2
How the heck do I use this? I can debug and step through all this nonsense from my swift code and get to the line that throws the exception, the only things in my watch are Registers for Exception State, Floating Point and General Purpose.
