Re: definition for __builtin_constant_p and __outb_p

David S. Miller (davem@jenolan.rutgers.edu)
Thu, 18 Sep 1997 23:03:40 -0400


Date: Thu, 19 Sep 1996 10:41:41 -0700
From: lgs@psbhns.hk.hq.cn (lgs)

where is the definition for __builtin_constant_p and __outb_p in
linux kernel source code? I find these function ( macro?) used in
include/asm/io.h, but I can not find any definition for them.

They are "magic" and embedded internally inside of GCC itself.

Later,
David "Sparc" Miller
davem@caip.rutgers.edu