1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __TOOLS_LINUX_KERNEL_H |
3 | #define __TOOLS_LINUX_KERNEL_H |
4 | |
5 | #include <stdarg.h> |
6 | #include <stddef.h> |
7 | #include <assert.h> |
8 | #include <linux/build_bug.h> |
9 | #include <linux/compiler.h> |
10 | #include <linux/math.h> |
11 | #include <linux/panic.h> |
12 | #include <endian.h> |
13 | #include <byteswap.h> |
14 | |
15 | #ifndef UINT_MAX |
16 | #define UINT_MAX (~0U) |
17 | #endif |
18 | |
19 | #define _RET_IP_ ((unsigned long)__builtin_return_address(0)) |
20 | |
21 | #define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1) |
22 | #define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) |
23 | |
24 | #ifndef offsetof |
25 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) |
26 | #endif |
27 | |
28 | #ifndef container_of |
29 | /** |
30 | * container_of - cast a member of a structure out to the containing structure |
31 | * @ptr: the pointer to the member. |
32 | * @type: the type of the container struct this is embedded in. |
33 | * @member: the name of the member within the struct. |
34 | * |
35 | */ |
36 | #define container_of(ptr, type, member) ({ \ |
37 | const typeof(((type *)0)->member) * __mptr = (ptr); \ |
38 | (type *)((char *)__mptr - offsetof(type, member)); }) |
39 | #endif |
40 | |
41 | #ifndef max |
42 | #define max(x, y) ({ \ |
43 | typeof(x) _max1 = (x); \ |
44 | typeof(y) _max2 = (y); \ |
45 | (void) (&_max1 == &_max2); \ |
46 | _max1 > _max2 ? _max1 : _max2; }) |
47 | #endif |
48 | |
49 | #ifndef min |
50 | #define min(x, y) ({ \ |
51 | typeof(x) _min1 = (x); \ |
52 | typeof(y) _min2 = (y); \ |
53 | (void) (&_min1 == &_min2); \ |
54 | _min1 < _min2 ? _min1 : _min2; }) |
55 | #endif |
56 | |
57 | #define max_t(type, x, y) max((type)x, (type)y) |
58 | #define min_t(type, x, y) min((type)x, (type)y) |
59 | #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) |
60 | |
61 | #ifndef BUG_ON |
62 | #ifdef NDEBUG |
63 | #define BUG_ON(cond) do { if (cond) {} } while (0) |
64 | #else |
65 | #define BUG_ON(cond) assert(!(cond)) |
66 | #endif |
67 | #endif |
68 | #define BUG() BUG_ON(1) |
69 | |
70 | #if __BYTE_ORDER == __BIG_ENDIAN |
71 | #define cpu_to_le16 bswap_16 |
72 | #define cpu_to_le32 bswap_32 |
73 | #define cpu_to_le64 bswap_64 |
74 | #define le16_to_cpu bswap_16 |
75 | #define le32_to_cpu bswap_32 |
76 | #define le64_to_cpu bswap_64 |
77 | #define cpu_to_be16 |
78 | #define cpu_to_be32 |
79 | #define cpu_to_be64 |
80 | #define be16_to_cpu |
81 | #define be32_to_cpu |
82 | #define be64_to_cpu |
83 | #else |
84 | #define cpu_to_le16 |
85 | #define cpu_to_le32 |
86 | #define cpu_to_le64 |
87 | #define le16_to_cpu |
88 | #define le32_to_cpu |
89 | #define le64_to_cpu |
90 | #define cpu_to_be16 bswap_16 |
91 | #define cpu_to_be32 bswap_32 |
92 | #define cpu_to_be64 bswap_64 |
93 | #define be16_to_cpu bswap_16 |
94 | #define be32_to_cpu bswap_32 |
95 | #define be64_to_cpu bswap_64 |
96 | #endif |
97 | |
98 | int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); |
99 | int scnprintf(char * buf, size_t size, const char * fmt, ...); |
100 | int scnprintf_pad(char * buf, size_t size, const char * fmt, ...); |
101 | |
102 | #ifndef ARRAY_SIZE |
103 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) |
104 | #endif |
105 | |
106 | #define current_gfp_context(k) 0 |
107 | #define synchronize_rcu() |
108 | |
109 | #endif |
110 | |