| /* Never include this file directly.  Include <linux/compiler.h> instead.  */ | 
 |  | 
 | /* | 
 |  * Common definitions for all gcc versions go here. | 
 |  */ | 
 |  | 
 |  | 
 | /* Optimization barrier */ | 
 | /* The "volatile" is due to gcc bugs */ | 
 | #define barrier() __asm__ __volatile__("": : :"memory") | 
 |  | 
 | /* This macro obfuscates arithmetic on a variable address so that gcc | 
 |    shouldn't recognize the original var, and make assumptions about it */ | 
 | #define RELOC_HIDE(ptr, off)					\ | 
 |   ({ unsigned long __ptr;					\ | 
 |     __asm__ ("" : "=g"(__ptr) : "0"(ptr));		\ | 
 |     (typeof(ptr)) (__ptr + (off)); }) |