dwblaikie wrote:
Ah, I think this right solution to /this/ case is that the compiler should be
emitting the alignment for the structure?
Like there's no way for the debugger to know that this structure is
underaligned at the moment:
```
struct __attribute__((packed)) t1 {
int i;
};
```
Which means the debugger might generate code that assumes `t1` is naturally
aligned, and break (ARM crashes on underaligned operations, doesn't it? so if
you got a pointer to t1 back from some API that happened to have put it in an
underaligned location - then in your expression you tried to read `i`, this
could generate crashing code?)
Essentially the `packed` attribute on the above structure is providing the same
value/effect as `aligned(1)` and should produce the same DWARF, but it doesn't.
https://github.com/llvm/llvm-project/pull/93809
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