[llvm-commits] Enable exceptions in JIT for Darwin

[Nicolas Geoffray]

Dear all,

Here's a patch that enables exception handling on Darwin with the JIT. 
It's really ugly, it's a workaround to work with libgcc which is doing 
crazy stuff when unwinding the stack. The __register_frame function was 
sufficient enough for Linux, but unfortunately, the code for darwin 
erases by default the registered frames. In a perfect world, I think 
libgcc should be modified....


I'd be totally OK if you don't want this patch in, as it's an ugly 
workaround. I can move the patch to vmkit, and that would be fine by me. 
However, this makes lli work out of the box with exceptions and darwin, 
so it's still an improvement.

Nicolas
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