File: compiler-gcc.h

package info (click to toggle)
linux-2.6 2.6.18.dfsg.1-26etch2
  • links: PTS
  • area: main
  • in suites: etch
  • size: 289,112 kB
  • ctags: 831,064
  • sloc: ansic: 4,700,345; asm: 205,595; makefile: 13,019; perl: 3,208; python: 2,735; yacc: 2,632; sh: 2,313; cpp: 2,107; lex: 1,510; lisp: 218; awk: 99; pascal: 41
file content (32 lines) | stat: -rw-r--r-- 1,177 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/* 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 */
/*
 * Versions of the ppc64 compiler before 4.1 had a bug where use of
 * RELOC_HIDE could trash r30. The bug can be worked around by changing
 * the inline assembly constraint from =g to =r, in this particular
 * case either is valid.
 */
#define RELOC_HIDE(ptr, off)					\
  ({ unsigned long __ptr;					\
    __asm__ ("" : "=r"(__ptr) : "0"(ptr));		\
    (typeof(ptr)) (__ptr + (off)); })


#define inline		inline		__attribute__((always_inline))
#define __inline__	__inline__	__attribute__((always_inline))
#define __inline	__inline	__attribute__((always_inline))
#define __deprecated			__attribute__((deprecated))
#define  noinline			__attribute__((noinline))
#define __attribute_pure__		__attribute__((pure))
#define __attribute_const__		__attribute__((__const__))