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SubjectRe: Userspace compiler support of "long long"
Date
On Thursday 28 June 2007 00:30:52 Kyle Moffett wrote:
> On Jun 27, 2007, at 13:32:40, Adrian Bunk wrote:
> > AFAIR the Intel compiler claims to be gcc.
> >
> > But these are by far not the only C compilers under Linux, and the
> > more important points are:
> >
> > Is there any userspace Linux compiler that does not support "long
> > long"?
>
> Don't know, but I'd guess not.

Tendra C and probably lcc. I would guess tinycc too.

> The only trick is if you care about building 32-bit compat code using
> 64-bit linux kernel headers. In that case we should probably just
> make all archs use "long long" for their 64-bit integers, unless
> there's some platform I'm not remembering where "long long" is 128-
> bits or bigger. The other benefit is that people could then just use
> the printf format "%llu" for 64-bit integers instead of having to
> conditionalize it all over the place.
>
> I'm working on a patch now.

Changing this will give you a zillion warnings for printk formats.

-Andi

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