sizeof(struct kevent) on ARM 32-bit

[Dr. Nikolaus Klepp]

Hi!

Anno domini 2020 Fri, 28 Feb 11:48:00 +0200
 Nick Kostirya via freebsd-arm scripsit:
> Hello.
> 
> Why sizeof(struct kevent) is 64 on ARM 32-bit?
> It is like as on amd64. But why?
> And struct timespec also is 16, but 8.
> 
> 
> i386 (FreeBSD 12.1):
> sizeof(struct kevent)   = 56
> sizeof(struct timespec) = 8
> sizeof(intptr_t)        = 4
> 
> amd64:
> sizeof(struct kevent)   = 64
> sizeof(struct timespec) = 16
> sizeof(intptr_t)        = 8
> 
> ARM 32-bit:
> sizeof(struct kevent)   = 64
> sizeof(struct timespec) = 16
> sizeof(intptr_t)        = 4
> 
> Nick.
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Structure packing, most likely.
http://www.catb.org/esr/structure-packing/

Nik


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