[LLVMdev] Unwinds gone missing

[Alastair Lynn]

 From what I understand, the unwind instruction is implemented only  
for the interpreter: there is a -lowerunwind pass for compiling to  
other systems which will either lower unwind and invoke to setjmp/ 
longjmp (slow) or turn invokes into calls and unwinds into abort()s.

On 26 Dec 2008, at 15:19, Matt Giuca wrote:

>
>
> Jon Harrop wrote:
>>
>> Is it? I was just reading the documentation about LLVM's exception
>> handling
>> and it sounded ideal for my needs. How much of it does not work as  
>> the
>> docs
>> imply?
>>
>
> Jon, I ran into this issue in September and re-ignited this  
> discussion in
> another thread, here:
> http://www.nabble.com/Unwinds-Gone-Wild-td18747589.html
> http://www.nabble.com/Unwinds-Gone-Wild-td18747589.html
>
> I too had been quite excited by reading the documentation.  
> Unfortunately, it
> seems "unwind" does nothing at all - it compiles into a no-op. So  
> you have
> to use the lower-level functions in libgcc. I've never figured out  
> how to
> get it working, sorry. But there may be helpful information in that  
> thread.
>
> Matt
> -- 
> View this message in context: http://www.nabble.com/Unwinds-gone-missing-tp21087203p21175147.html
> Sent from the LLVM - Dev mailing list archive at Nabble.com.
>
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