Messages in this thread | | | From | Andi Kleen <> | Subject | Re: Userspace compiler support of "long long" | Date | Thu, 28 Jun 2007 02:30:42 +0200 |
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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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