[klibc] mmap and getpagesize
H. Peter Anvin
hpa at zytor.com
Sat Jan 24 23:29:43 PST 2004
Jon Smirl wrote:
> The man page for mmap() says the size needs to be a multiple of getpagesize().
> So in my code I call getpagesize() and adjust my lengths accordingly. klibc
> doesn't have getpagesize() implemented. Is it safe to call mmap() with arbritary
> lengths and assume the mmap will round up for you? Does this work on glibc too?
> If so, I can just eliminate my getpagesize() code.
It's sort-of OK. I think klibc uses PAGE_SIZE as a compile-time
constant. I probably should implement getpagesize() as an inline
More information about the klibc