[LLVMdev] RFC: Darwin EH Patch

[Evan Cheng]

Please make sure the suffix is correct when compiling for static  
relocation model.

The way the Darwin asm printer handles $non_lazy_ptr is pretty hacky.  
Perhaps we need to add some target specific information onto GV's.  
This is definitely a stop gap solution. Hopefully it's won't be a  
permanent one. :-)

Evan

On Sep 11, 2007, at 1:23 AM, Bill Wendling wrote:

> Hi Anton,
>
>>> It's not exactly tweaking magic knobs. It's doing something that's
>>> already done -- putting the information in the TAI object, and
>>> allowing the specific back-end to set the appropriate strings.
>> It seems to me, that simple strings / bools there are not enough :)
>> "$non_lazy_ptr" emission is already in asm printers (in 2 places!).
>> The
>> "L" prefix is PrivateGlobalPrefix (so PersonalityPrefix is really
>> duplicate). That's why I thought about factoring such stuff into
>> separate hooks. I'm really worrying, that number of such strings /
>> bools
>> can be increased, if somebody will try to make other targets (e.g.
>> ppc /
>> arm) fully support things, which are now x86-specific (I even don't
>> know, whether current settings are enough to representing 64-bit
>> specific information)
>>
>>> If I understand you correctly, this seems like a bigger project than
>>> simply getting the personality function to work for Darwin. :-)
>> I'm happy for this fix in short-term. But yes, it is pretty non-small
>> project :)
>
> Okay. I think we're on the same page then. :-) I'll go ahead and
> commit this for the short term, and then we can hash out a better
> long term solution. Sound good?
>
> -bw
>
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