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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 04:34:11 +08:00
linux-next/include/linux/compiler-gcc2.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

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789 B
C

/* Never include this file directly. Include <linux/compiler.h> instead. */
/* These definitions are for GCC v2.x. */
/* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
a mechanism by which the user can annotate likely branch directions and
expect the blocks to be reordered appropriately. Define __builtin_expect
to nothing for earlier compilers. */
#include <linux/compiler-gcc.h>
#if __GNUC_MINOR__ < 96
# define __builtin_expect(x, expected_value) (x)
#endif
#define __attribute_used__ __attribute__((__unused__))
/*
* The attribute `pure' is not implemented in GCC versions earlier
* than 2.96.
*/
#if __GNUC_MINOR__ >= 96
# define __attribute_pure__ __attribute__((pure))
# define __attribute_const__ __attribute__((__const__))
#endif