Re: RFD: x32 ABI system call numbers

[H. Peter Anvin]

On 08/31/2011 01:55 PM, Arnd Bergmann wrote:
> 
> But isn't this mostly a glibc thing then? The definition of time_t that
> is used by applications comes from bits/typesizes.h, not from the
> kernel's linux/types.h. If we use 64 bit time_t values internally
> in the kernel and truncate them to 32 bits on the user interface,
> there is no visible difference between signed and unsigned values
> for data passed from kernel to user when it's interpreted as
> signed int anyway.
> 
> For the rarer case of user space passing a 32 bit time_t into the
> kernel (e.g. utimensat), there is of course a difference.
> 

Yes, exactly.  It should be done in a coordinated fashion.

	-hpa
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