Linux kernel mirror (for testing)
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1/* Never include this file directly. Include <linux/compiler.h> instead. */
2
3/* These definitions are for GCC v2.x. */
4
5/* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
6 a mechanism by which the user can annotate likely branch directions and
7 expect the blocks to be reordered appropriately. Define __builtin_expect
8 to nothing for earlier compilers. */
9#include <linux/compiler-gcc.h>
10
11#if __GNUC_MINOR__ < 96
12# define __builtin_expect(x, expected_value) (x)
13#endif
14
15#define __attribute_used__ __attribute__((__unused__))
16
17/*
18 * The attribute `pure' is not implemented in GCC versions earlier
19 * than 2.96.
20 */
21#if __GNUC_MINOR__ >= 96
22# define __attribute_pure__ __attribute__((pure))
23# define __attribute_const__ __attribute__((__const__))
24#endif
25
26/* GCC 2.95.x/2.96 recognize __va_copy, but not va_copy. Actually later GCC's
27 * define both va_copy and __va_copy, but the latter may go away, so limit this
28 * to this header */
29#define va_copy __va_copy