kerncompat.h

   1 #ifndef __KERNCOMPAT
   2 #define __KERNCOMPAT
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <endian.h>
   8 #include <byteswap.h>
   9
  10 #define gfp_t int
  11 #define get_cpu_var(p) (p)
  12 #define __get_cpu_var(p) (p)
  13 #define BITS_PER_LONG (sizeof(long) * 8)
  14 #define __GFP_BITS_SHIFT 20
  15 #define __GFP_BITS_MASK ((int)((1 << __GFP_BITS_SHIFT) - 1))
  16 #define GFP_KERNEL 0
  17 #define GFP_NOFS 0
  18 #define __read_mostly
  19 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  20 #define ULONG_MAX       (~0UL)
  21 #define BUG() abort()
  22 #ifdef __CHECKER__
  23 #define __force    __attribute__((force))
  24 #define __bitwise__ __attribute__((bitwise))
  25 #else
  26 #define __force
  27 #define __bitwise__
  28 #endif
  29
  30 #ifndef __CHECKER__
  31 #include <asm/types.h>
  32 typedef __u32 u32;
  33 typedef __u64 u64;
  34 typedef __u16 u16;
  35 typedef __u8 u8;
  36 #else
  37 typedef unsigned int u32;
  38 typedef unsigned int __u32;
  39 typedef unsigned long long u64;
  40 typedef unsigned char u8;
  41 typedef unsigned short u16;
  42 #endif
  43
  44
  45 struct vma_shared { int prio_tree_node; };
  46 struct vm_area_struct {
  47         unsigned long vm_pgoff;
  48         unsigned long vm_start;
  49         unsigned long vm_end;
  50         struct vma_shared shared;
  51 };
  52 struct page {
  53         unsigned long index;
  54 };
  55
  56 static inline void preempt_enable(void) { do {; } while(0);}
  57 static inline void preempt_disable(void) { do {; } while(0);}
  58
  59 #define BITOP_MASK(nr)          (1UL << ((nr) % BITS_PER_LONG))
  60 #define BITOP_WORD(nr)          ((nr) / BITS_PER_LONG)
  61
  62 /**
  63  * __set_bit - Set a bit in memory
  64  * @nr: the bit to set
  65  * @addr: the address to start counting from
  66  *
  67  * Unlike set_bit(), this function is non-atomic and may be reordered.
  68  * If it's called on the same region of memory simultaneously, the effect
  69  * may be that only one operation succeeds.
  70  */
  71 static inline void __set_bit(int nr, volatile unsigned long *addr)
  72 {
  73         unsigned long mask = BITOP_MASK(nr);
  74         unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
  75
  76         *p  |= mask;
  77 }
  78
  79 static inline void __clear_bit(int nr, volatile unsigned long *addr)
  80 {
  81         unsigned long mask = BITOP_MASK(nr);
  82         unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
  83
  84         *p &= ~mask;
  85 }
  86
  87 /**
  88  * test_bit - Determine whether a bit is set
  89  * @nr: bit number to test
  90  * @addr: Address to start counting from
  91  */
  92 static inline int test_bit(int nr, const volatile unsigned long *addr)
  93 {
  94         return 1UL & (addr[BITOP_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
  95 }
  96
  97 #define BUG_ON(c) do { if (c) abort(); } while (0)
  98
  99 #define container_of(ptr, type, member) ({                      \
 100         const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
 101                 (type *)( (char *)__mptr - __builtin_offsetof(type,member) );})
 102
 103 #define ENOMEM 5
 104 #define EEXIST 6
 105
 106 #ifdef __CHECKER__
 107 #define __CHECK_ENDIAN__
 108 #define __bitwise __bitwise__
 109 #else
 110 #define __bitwise
 111 #endif
 112
 113 typedef u16 __bitwise __le16;
 114 typedef u16 __bitwise __be16;
 115 typedef u32 __bitwise __le32;
 116 typedef u32 __bitwise __be32;
 117 typedef u64 __bitwise __le64;
 118 typedef u64 __bitwise __be64;
 119
 120 #if __BYTE_ORDER == __BIG_ENDIAN
 121 #define cpu_to_le64(x) ((__force __le64)(u64)(bswap_64(x)))
 122 #define le64_to_cpu(x) ((__force u64)(__le64)(bswap_64(x)))
 123 #define cpu_to_le32(x) ((__force __le32)(u32)(bswap_32(x)))
 124 #define le32_to_cpu(x) ((__force u32)(__le32)(bswap_32(x)))
 125 #define cpu_to_le16(x) ((__force __le16)(u16)(bswap_16(x)))
 126 #define le16_to_cpu(x) ((__force u16)(__le16)(bswap_16(x)))
 127 #else
 128 #define cpu_to_le64(x) ((__force __le64)(u64)(x))
 129 #define le64_to_cpu(x) ((__force u64)(__le64)(x))
 130 #define cpu_to_le32(x) ((__force __le32)(u32)(x))
 131 #define le32_to_cpu(x) ((__force u32)(__le32)(x))
 132 #define cpu_to_le16(x) ((__force __le16)(u16)(x))
 133 #define le16_to_cpu(x) ((__force u16)(__le16)(x))
 134 #endif
 135 #endif