diff options
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/src/include/linux/compiler-gcc.h | 2 | ||||
| -rw-r--r-- | linux/src/include/linux/compiler.h | 8 |
2 files changed, 8 insertions, 2 deletions
diff --git a/linux/src/include/linux/compiler-gcc.h b/linux/src/include/linux/compiler-gcc.h index 59e4028..b1a0be0 100644 --- a/linux/src/include/linux/compiler-gcc.h +++ b/linux/src/include/linux/compiler-gcc.h @@ -9,7 +9,9 @@ /* Optimization barrier */ /* The "volatile" is due to gcc bugs */ +#ifndef barrier #define barrier() __asm__ __volatile__("": : :"memory") +#endif /* barrier */ /* * This macro obfuscates arithmetic on a variable address so that gcc diff --git a/linux/src/include/linux/compiler.h b/linux/src/include/linux/compiler.h index 320d6c9..eb3dd94 100644 --- a/linux/src/include/linux/compiler.h +++ b/linux/src/include/linux/compiler.h @@ -143,8 +143,12 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); #endif /* CONFIG_PROFILE_ALL_BRANCHES */ #else -# define likely(x) __builtin_expect(!!(x), 1) -# define unlikely(x) __builtin_expect(!!(x), 0) +# ifndef likely +# define likely(x) __builtin_expect(!!(x), 1) +# endif /* likely */ +# ifndef unlikely +# define unlikely(x) __builtin_expect(!!(x), 0) +# endif /* unlikely */ #endif /* Optimization barrier */ |