From ba203ef1916dc426afb4a069b00fe7cbed3cd8d9 Mon Sep 17 00:00:00 2001 From: Bernhard Reutner-Fischer Date: Tue, 18 Nov 2008 13:03:34 +0000 Subject: - add __hot and __cold annotations Will spare us quite some likely()/unlikely() occurances. See http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html for details --- include/libc-symbols.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/libc-symbols.h') diff --git a/include/libc-symbols.h b/include/libc-symbols.h index dacc03cf9..64dcf2c07 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -63,6 +63,14 @@ #ifndef unlikely # define unlikely(x) __builtin_expect((!!(x)),0) #endif +#if defined __GNUC__ && !(__GNUC__ == 4 && __GNUC_MINOR__ < 3) +# ifndef __cold +# define __cold __attribute__ ((__cold__)) +# endif +# ifndef __hot +# define __hot __attribute__ ((__hot__)) +# endif +#endif #ifndef __LINUX_COMPILER_H # define __LINUX_COMPILER_H #endif -- cgit v1.2.3