1 /* Never include this file directly. Include <linux/compiler.h> instead. */ 2 3 /* 4 * Common definitions for all gcc versions go here. 5 */ 6 7 8 /* Optimization barrier */ 9 /* The "volatile" is due to gcc bugs */ 10 #define barrier() __asm__ __volatile__("": : :"memory") 11 12 /* This macro obfuscates arithmetic on a variable address so that gcc 13 shouldn't recognize the original var, and make assumptions about it */ 14 #define RELOC_HIDE(ptr, off) \ 15 ({ unsigned long __ptr; \ 16 __asm__ ("" : "=g"(__ptr) : "0"(ptr)); \ 17 (typeof(ptr)) (__ptr + (off)); }) 18