Re: build fix for x86_64...

From: H. Peter Anvin
Date: Fri Jul 20 2007 - 15:31:43 EST


Andi Kleen wrote:
>> Obviously, this is not a panacea; if the original "struct foo" has also
>> been introduced on 64 bits before the bug is caught,
>
> That's usually the case. There is already an established 64bit ABI
>

This is true.

Kind of makes me wonder if the right thing is to introduce an
"interface" 64-bit type, call it __iu64 (__is64) defined as:

typedef __u64 __attribute__((aligned(8))) __iu64;
typedef __s64 __attribute__((aligned(8))) __is64;

... and encourage people to use it when creating new interfaces.

Don't know if that would do any good.

-hpa
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