| Issue |
161851
|
| Summary |
Can't debug windows aarch64 executables that throw c++ exceptions, if built with lllvm-mingw
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
ssbssa
|
If you try to debug any executable that throws a c++ exception, you get this result:
```
* thread #1, stop reason = Exception 0xc00000ff encountered at address 0x7fff44a181b0
frame #0: 0x00007fff44a181b0 ntdll.dll`RtlRaiseStatus + 32
```
I even tried cdb, and got a similar result.
After lots of searching I found [this post](https://github.com/LuaJIT/LuaJIT/issues/593#issuecomment-1717728494) detailing a deep analysis plus [solution](https://github.com/LuaJIT/LuaJIT/commit/7a1c139569874f371f567d060738a3f5704930a1) of the problem.
I didn't test it, but I expect that a similar change like the following should fix this:
```diff
--- a/libunwind/src/Unwind-seh.cpp
+++ b/libunwind/src/Unwind-seh.cpp
@@ -174,7 +174,7 @@ _GCC_specific_handler(PEXCEPTION_RECORD ms_exc, PVOID frame, PCONTEXT ms_ctx,
}
// FIXME: Indicate target frame in foreign case!
// phase 2: the clean up phase
- RtlUnwindEx(frame, (PVOID)disp->ControlPc, ms_exc, exc, ms_ctx, disp->HistoryTable);
+ RtlUnwindEx(frame, (PVOID)disp->ControlPc, ms_exc, exc, disp->ContextRecord, disp->HistoryTable);
_LIBUNWIND_ABORT("RtlUnwindEx() failed");
case _URC_INSTALL_CONTEXT: {
// If we were called by __libunwind_seh_personality(), indicate that
```
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