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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
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