Re: [Qemu-devel] [PATCH v4] linux-user: fix to handle variably sized SIOCGSTAMP with new kernels

[Richard Henderson]

On 7/12/19 3:55 PM, Arnd Bergmann wrote:
> glibc will have to create a definition that matches the kernel, which uses
> 
> struct __kernel_timespec {
>     __s64 tv_sec;
>     __s64 tv_nsec;
> };
> 
> As posix requires tv_nsec to be 'long', you need padding between
> tv_sec and tv_nsec to have a libc definition matching the kernel's
> binary layout.

Yes, but that's glibc's lookout.  All qemu cares about emulating is the kernel
interface.  So I think Laurent is right here, in that two reads handle the
above structure just fine.


r~