Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef KERNEL_H
2#define KERNEL_H
3#include <stdbool.h>
4#include <stdlib.h>
5#include <stddef.h>
6#include <stdio.h>
7#include <string.h>
8#include <assert.h>
9#include <stdarg.h>
10
11#include <linux/types.h>
12#include <linux/printk.h>
13#include <linux/bug.h>
14#include <errno.h>
15#include <unistd.h>
16#include <asm/barrier.h>
17
18#define CONFIG_SMP
19
20#define PAGE_SIZE getpagesize()
21#define PAGE_MASK (~(PAGE_SIZE-1))
22
23typedef unsigned long long dma_addr_t;
24typedef size_t __kernel_size_t;
25
26struct page {
27 unsigned long long dummy;
28};
29
30/* Physical == Virtual */
31#define virt_to_phys(p) ((unsigned long)p)
32#define phys_to_virt(a) ((void *)(unsigned long)(a))
33/* Page address: Virtual / 4K */
34#define page_to_phys(p) ((dma_addr_t)(unsigned long)(p))
35#define virt_to_page(p) ((struct page *)((unsigned long)p & PAGE_MASK))
36
37#define offset_in_page(p) (((unsigned long)p) % PAGE_SIZE)
38
39#define __printf(a,b) __attribute__((format(printf,a,b)))
40
41#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
42
43extern void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end;
44static inline void *kmalloc(size_t s, gfp_t gfp)
45{
46 if (__kmalloc_fake)
47 return __kmalloc_fake;
48 return malloc(s);
49}
50
51static inline void kfree(void *p)
52{
53 if (p >= __kfree_ignore_start && p < __kfree_ignore_end)
54 return;
55 free(p);
56}
57
58static inline void *krealloc(void *p, size_t s, gfp_t gfp)
59{
60 return realloc(p, s);
61}
62
63
64static inline unsigned long __get_free_page(gfp_t gfp)
65{
66 void *p;
67
68 posix_memalign(&p, PAGE_SIZE, PAGE_SIZE);
69 return (unsigned long)p;
70}
71
72static inline void free_page(unsigned long addr)
73{
74 free((void *)addr);
75}
76
77#define container_of(ptr, type, member) ({ \
78 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
79 (type *)( (char *)__mptr - offsetof(type,member) );})
80
81#define uninitialized_var(x) x = x
82
83# ifndef likely
84# define likely(x) (__builtin_expect(!!(x), 1))
85# endif
86# ifndef unlikely
87# define unlikely(x) (__builtin_expect(!!(x), 0))
88# endif
89
90#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
91#ifdef DEBUG
92#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
93#else
94#define pr_debug(format, ...) do {} while (0)
95#endif
96#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
97#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
98
99#define min(x, y) ({ \
100 typeof(x) _min1 = (x); \
101 typeof(y) _min2 = (y); \
102 (void) (&_min1 == &_min2); \
103 _min1 < _min2 ? _min1 : _min2; })
104
105#endif /* KERNEL_H */