jasonmolenda wrote:
Ah, so the problem is,
```
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_INSTRUCTION
(code=1, subcode=0xdead)
* frame #0: 0x0000000100003f2c b.out`signal_generating_add + 4 at
signal-in-leaf-function-aarch64.c:5
frame #1: 0x0000000100003f7c b.out`main + 44 at
signal-in-leaf-function-aarch64.c:14
frame #2: 0x0000000185c76244 dyld`start + 2792
```
The bad instruction in `signal_generating_add()`, is sent to the program master
a EXC_BAD_INSTRUCTION mach exception, not a posix signal (or maybe it was
received by lldb as a mach exception and if it had continued to the process it
would be recieved as a signal).
When I've done these kinds of test cases in the past, I usually add a signal
handler and then send the signal to the inferior, e.g.
`lldb/test/API/functionalities/unwind/sigtramp/main.c` -- this test is marked
`@skipUnlessDarwin` with a comment of
```
# On different platforms the "_sigtramp" and "__kill" frames are likely to
be different.
# This test could probably be adapted to run on linux/*bsd easily enough.
```
(the test explicitly checks the stack for the function names that should appear
above the signal handler)
https://github.com/llvm/llvm-project/pull/91321
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