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;
25typedef unsigned int __wsum;
26
27struct page {
28 unsigned long long dummy;
29};
30
31/* Physical == Virtual */
32#define virt_to_phys(p) ((unsigned long)p)
33#define phys_to_virt(a) ((void *)(unsigned long)(a))
34/* Page address: Virtual / 4K */
35#define page_to_phys(p) ((dma_addr_t)(unsigned long)(p))
36#define virt_to_page(p) ((struct page *)((unsigned long)p & PAGE_MASK))
37
38#define offset_in_page(p) (((unsigned long)p) % PAGE_SIZE)
39
40#define __printf(a,b) __attribute__((format(printf,a,b)))
41
42#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
43
44extern void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end;
45static inline void *kmalloc(size_t s, gfp_t gfp)
46{
47 if (__kmalloc_fake)
48 return __kmalloc_fake;
49 return malloc(s);
50}
51static inline void *kzalloc(size_t s, gfp_t gfp)
52{
53 void *p = kmalloc(s, gfp);
54
55 memset(p, 0, s);
56 return p;
57}
58
59static inline void kfree(void *p)
60{
61 if (p >= __kfree_ignore_start && p < __kfree_ignore_end)
62 return;
63 free(p);
64}
65
66static inline void *krealloc(void *p, size_t s, gfp_t gfp)
67{
68 return realloc(p, s);
69}
70
71
72static inline unsigned long __get_free_page(gfp_t gfp)
73{
74 void *p;
75
76 posix_memalign(&p, PAGE_SIZE, PAGE_SIZE);
77 return (unsigned long)p;
78}
79
80static inline void free_page(unsigned long addr)
81{
82 free((void *)addr);
83}
84
85#define container_of(ptr, type, member) ({ \
86 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
87 (type *)( (char *)__mptr - offsetof(type,member) );})
88
89#define uninitialized_var(x) x = x
90
91# ifndef likely
92# define likely(x) (__builtin_expect(!!(x), 1))
93# endif
94# ifndef unlikely
95# define unlikely(x) (__builtin_expect(!!(x), 0))
96# endif
97
98#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
99#ifdef DEBUG
100#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
101#else
102#define pr_debug(format, ...) do {} while (0)
103#endif
104#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
105#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
106
107#define min(x, y) ({ \
108 typeof(x) _min1 = (x); \
109 typeof(y) _min2 = (y); \
110 (void) (&_min1 == &_min2); \
111 _min1 < _min2 ? _min1 : _min2; })
112
113/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */
114#define list_add_tail(a, b) do {} while (0)
115#define list_del(a) do {} while (0)
116#define list_for_each_entry(a, b, c) while (0)
117/* end of stubs */
118
119#endif /* KERNEL_H */