kerncompat.h

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