#define likely_notrace(x) __builtin_expect(!!(x), 1)
#define unlikely_notrace(x) __builtin_expect(!!(x), 0)
-#define likely_check(x) ({ \
+#define __branch_check__(x, expect) ({ \
int ______r; \
static struct ftrace_branch_data \
__attribute__((__aligned__(4))) \
- __attribute__((section("_ftrace_likely"))) \
+ __attribute__((section("_ftrace_annotated_branch"))) \
______f = { \
.func = __func__, \
.file = __FILE__, \
.line = __LINE__, \
}; \
______r = likely_notrace(x); \
- ftrace_likely_update(&______f, ______r, 1); \
- ______r; \
- })
-#define unlikely_check(x) ({ \
- int ______r; \
- static struct ftrace_branch_data \
- __attribute__((__aligned__(4))) \
- __attribute__((section("_ftrace_unlikely"))) \
- ______f = { \
- .func = __func__, \
- .file = __FILE__, \
- .line = __LINE__, \
- }; \
- ______r = unlikely_notrace(x); \
- ftrace_likely_update(&______f, ______r, 0); \
+ ftrace_likely_update(&______f, ______r, expect); \
______r; \
})
* written by Daniel Walker.
*/
# ifndef likely
-# define likely(x) (__builtin_constant_p(x) ? !!(x) : likely_check(x))
+# define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1))
# endif
# ifndef unlikely
-# define unlikely(x) (__builtin_constant_p(x) ? !!(x) : unlikely_check(x))
+# define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0))
# endif
#else
# define likely(x) __builtin_expect(!!(x), 1)