llvm dev - Mar 2017 - Please dogfood LLD

Michael Johnson via llvm-dev <llvm-dev at lists.llvm.org> writes:
> Hi Rui,
>
> Are there any plans to support the -defsym command line option?
It doesn't look that hard, it was just never requested. What project is
using it?

Cheers,
Rafael

Hi Rafael,
> Michael Johnson via llvm-dev <llvm-dev at lists.llvm.org> writes:
>
>> Hi Rui,
>>
>> Are there any plans to support the -defsym command line option?
> It doesn't look that hard, it was just never requested. What project is
> using it?
Not sure I understand what the project set is. It's not an uncommon 
feature for a linker in the embedded world.

It's the first problem I discovered when trying to use lld rather than 
ld e.g.

-defsym=__vfprintf=__vfprintf_float_long_long

to select a particular implementation of printf.

The second problem was failing to parse the .ld script - I can provide 
it if required.

Regards
Michael
>
> Cheers,
> Rafael

Michael Johnson <mpj at rowley.co.uk> writes:
> Hi Rafael,
>> Michael Johnson via llvm-dev <llvm-dev at lists.llvm.org> writes:
>>
>>> Hi Rui,
>>>
>>> Are there any plans to support the -defsym command line option?
>> It doesn't look that hard, it was just never requested. What
project is
>> using it?
> Not sure I understand what the project set is. It's not an uncommon 
> feature for a linker in the embedded world.
>
> It's the first problem I discovered when trying to use lld rather than 
> ld e.g.
>
> -defsym=__vfprintf=__vfprintf_float_long_long
>
> to select a particular implementation of printf.
>
> The second problem was failing to parse the .ld script - I can provide 
> it if required.
If you could open bugs for both that would be awesome.

Thanks,
Rafael