> > like an awkward approach.  A related question: is the page size stored in
> > /proc somewhere?
> 
> No, PAGE_SIZE is known at compile time and cannot ever change (especially
> it cannot change ig you stay within i386 architecture). It is available to
> programs by including <asm/page.h> header.

Untrue. On many architectures page size is not fixed. You should use the
getpagesize() function/syscall. glibc knows if its a syscall or a constant
you dont

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