[cfe-dev] naked attribute

Reed Kotler rkotler at mips.com
Fri May 3 12:53:09 PDT 2013

On 05/03/2013 10:51 AM, Anton Korobeynikov wrote:
> The original intent when the naked attribute to clang / llvm was added
> had been to make it work on all the platforms regardless whether gcc
> supports it or not.
> The main motivation is that in LLVM case everything is done in
> target-independent way.
> I really do not see a point of warning here, especially given that gcc
> side is largely undocumented.

I personally would be okay with doing things this way.

It's a very reasonable and useful attribute and if someone does not want 
to use it, they don't have it.

> On Fri, May 3, 2013 at 9:30 PM, Rafael EspĂ­ndola
> <rafael.espindola at gmail.com> wrote:
>>> I agree. At least in the clang/llvm mode where we don't care about strict
>>> compatibility with gcc.
>>> For the serious  embedded programmer, this is a life saver and helpful
>>> friend.
>> OK, so what about:
>> * On targets where gcc supports this attribute, we support it too, no warnings.
>> * An targets where gcc doesn't support it, we get two options.
>>    1. Implement it and have a warning that this is a clang extension
>>    2. Don't implement it and warn about an ignored attribute (like gcc does).
>> If a target follows 1 or 2 is mostly dependent of llvm having
>> implemented the naked attribute on that target.
>> Cheers,
>> Rafael
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