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1 | /* |
2 | * Kernel API extracted from Linux kernel headers. |
3 | */ |
4 | |
5 | #ifndef __KERNEL_API |
6 | #define __KERNEL_API |
7 | |
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8 | #include <errno.h> |
9 | #include <syscall.h> |
10 | #include <string.h> |
11 | #include <stdint.h> |
12 | |
13 | #ifdef __cplusplus |
14 | extern "C" { |
15 | #endif |
16 | |
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17 | #define DECLARE_IMV(type, name) extern __typeof__(type) name##__imv |
18 | #define DEFINE_IMV(type, name) __typeof__(type) name##__imv |
19 | |
20 | #define likely(x) __builtin_expect(!!(x), 1) |
21 | #define unlikely(x) __builtin_expect(!!(x), 0) |
22 | |
23 | /** |
24 | * imv_read - read immediate variable |
25 | * @name: immediate value name |
26 | * |
27 | * Reads the value of @name. |
28 | */ |
29 | #define imv_read(name) _imv_read(name) |
30 | |
31 | /** |
32 | * _imv_read - Read immediate value with standard memory load. |
33 | * @name: immediate value name |
34 | * |
35 | * Force a data read of the immediate value instead of the immediate value |
36 | * based mechanism. Useful for __init and __exit section data read. |
37 | */ |
38 | #define _imv_read(name) (name##__imv) |
39 | |
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40 | #define __NR_marker 328 |
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41 | #define __NR_trace 329 |
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42 | |
43 | #define sys_marker(...) syscall(__NR_marker, __VA_ARGS__) |
44 | |
45 | #ifdef __cplusplus |
46 | } /* end of extern "C" */ |
47 | #endif |
48 | |
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49 | #endif |