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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | #ifndef PERF_LINUX_KERNEL_H_ #define PERF_LINUX_KERNEL_H_ #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <assert.h> #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) #ifndef offsetof #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) #endif #ifndef container_of /** * container_of - cast a member of a structure out to the containing structure * @ptr: the pointer to the member. * @type: the type of the container struct this is embedded in. * @member: the name of the member within the struct. * */ #define container_of(ptr, type, member) ({ \ const typeof(((type *)0)->member) * __mptr = (ptr); \ (type *)((char *)__mptr - offsetof(type, member)); }) #endif #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) #ifndef max #define max(x, y) ({ \ typeof(x) _max1 = (x); \ typeof(y) _max2 = (y); \ (void) (&_max1 == &_max2); \ _max1 > _max2 ? _max1 : _max2; }) #endif #ifndef min #define min(x, y) ({ \ typeof(x) _min1 = (x); \ typeof(y) _min2 = (y); \ (void) (&_min1 == &_min2); \ _min1 < _min2 ? _min1 : _min2; }) #endif #ifndef BUG_ON #define BUG_ON(cond) assert(!(cond)) #endif /* * Both need more care to handle endianness * (Don't use bitmap_copy_le() for now) */ #define cpu_to_le64(x) (x) #define cpu_to_le32(x) (x) static inline int vscnprintf(char *buf, size_t size, const char *fmt, va_list args) { int i; ssize_t ssize = size; i = vsnprintf(buf, size, fmt, args); return (i >= ssize) ? (ssize - 1) : i; } static inline int scnprintf(char * buf, size_t size, const char * fmt, ...) { va_list args; ssize_t ssize = size; int i; va_start(args, fmt); i = vsnprintf(buf, size, fmt, args); va_end(args); return (i >= ssize) ? (ssize - 1) : i; } static inline unsigned long simple_strtoul(const char *nptr, char **endptr, int base) { return strtoul(nptr, endptr, base); } int eprintf(int level, const char *fmt, ...) __attribute__((format(printf, 2, 3))); #ifndef pr_fmt #define pr_fmt(fmt) fmt #endif #define pr_err(fmt, ...) \ eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) #define pr_warning(fmt, ...) \ eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) #define pr_info(fmt, ...) \ eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debug(fmt, ...) \ eprintf(1, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debugN(n, fmt, ...) \ eprintf(n, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__) #endif |