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 /* 15 * Versions of the ppc64 compiler before 4.1 had a bug where use of 16 * RELOC_HIDE could trash r30. The bug can be worked around by changing 17 * the inline assembly constraint from =g to =r, in this particular 18 * case either is valid. 19 */ 20 #define RELOC_HIDE(ptr, off) \ 21 ({ unsigned long __ptr; \ 22 __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \ 23 (typeof(ptr)) (__ptr + (off)); }) 24 25 26 #define inline inline __attribute__((always_inline)) 27 #define __inline__ __inline__ __attribute__((always_inline)) 28 #define __inline __inline __attribute__((always_inline)) 29 #define __deprecated __attribute__((deprecated)) 30 #define noinline __attribute__((noinline)) 31 #define __attribute_pure__ __attribute__((pure)) 32 #define __attribute_const__ __attribute__((__const__)) 33
