blob: 47c296e202d1e97388d3207e4f0c2321831a2f87
1 | /* |
2 | * Keep all the ugly #ifdef for system stuff here |
3 | */ |
4 | |
5 | #ifndef __COMPILER_H__ |
6 | #define __COMPILER_H__ |
7 | |
8 | #include <stddef.h> |
9 | |
10 | #ifdef USE_HOSTCC |
11 | |
12 | #if defined(__BEOS__) || \ |
13 | defined(__NetBSD__) || \ |
14 | defined(__FreeBSD__) || \ |
15 | defined(__sun__) || \ |
16 | defined(__APPLE__) |
17 | # include <inttypes.h> |
18 | #elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__) |
19 | # include <stdint.h> |
20 | #endif |
21 | |
22 | #include <errno.h> |
23 | #include <stdlib.h> |
24 | #include <stdint.h> |
25 | #include <stdio.h> |
26 | #include <string.h> |
27 | |
28 | #if !defined(__WIN32__) && !defined(__MINGW32__) |
29 | # include <sys/mman.h> |
30 | #endif |
31 | |
32 | /* Not all systems (like Windows) has this define, and yes |
33 | * we do replace/emulate mmap() on those systems ... |
34 | */ |
35 | #ifndef MAP_FAILED |
36 | # define MAP_FAILED ((void *)-1) |
37 | #endif |
38 | |
39 | #include <fcntl.h> |
40 | #ifndef O_BINARY /* should be define'd on __WIN32__ */ |
41 | #define O_BINARY 0 |
42 | #endif |
43 | |
44 | #ifdef __linux__ |
45 | # include <endian.h> |
46 | # include <byteswap.h> |
47 | #elif defined(__MACH__) || defined(__FreeBSD__) |
48 | # include <machine/endian.h> |
49 | typedef unsigned long ulong; |
50 | #endif |
51 | #ifdef __FreeBSD__ |
52 | # include <sys/endian.h> /* htole32 and friends */ |
53 | #endif |
54 | |
55 | #include <time.h> |
56 | |
57 | typedef uint8_t __u8; |
58 | typedef uint16_t __u16; |
59 | typedef uint32_t __u32; |
60 | typedef unsigned int uint; |
61 | |
62 | #define uswap_16(x) \ |
63 | ((((x) & 0xff00) >> 8) | \ |
64 | (((x) & 0x00ff) << 8)) |
65 | #define uswap_32(x) \ |
66 | ((((x) & 0xff000000) >> 24) | \ |
67 | (((x) & 0x00ff0000) >> 8) | \ |
68 | (((x) & 0x0000ff00) << 8) | \ |
69 | (((x) & 0x000000ff) << 24)) |
70 | #define _uswap_64(x, sfx) \ |
71 | ((((x) & 0xff00000000000000##sfx) >> 56) | \ |
72 | (((x) & 0x00ff000000000000##sfx) >> 40) | \ |
73 | (((x) & 0x0000ff0000000000##sfx) >> 24) | \ |
74 | (((x) & 0x000000ff00000000##sfx) >> 8) | \ |
75 | (((x) & 0x00000000ff000000##sfx) << 8) | \ |
76 | (((x) & 0x0000000000ff0000##sfx) << 24) | \ |
77 | (((x) & 0x000000000000ff00##sfx) << 40) | \ |
78 | (((x) & 0x00000000000000ff##sfx) << 56)) |
79 | #if defined(__GNUC__) |
80 | # define uswap_64(x) _uswap_64(x, ull) |
81 | #else |
82 | # define uswap_64(x) _uswap_64(x, ) |
83 | #endif |
84 | |
85 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
86 | # define cpu_to_le16(x) (x) |
87 | # define cpu_to_le32(x) (x) |
88 | # define cpu_to_le64(x) (x) |
89 | # define le16_to_cpu(x) (x) |
90 | # define le32_to_cpu(x) (x) |
91 | # define le64_to_cpu(x) (x) |
92 | # define cpu_to_be16(x) uswap_16(x) |
93 | # define cpu_to_be32(x) uswap_32(x) |
94 | # define cpu_to_be64(x) uswap_64(x) |
95 | # define be16_to_cpu(x) uswap_16(x) |
96 | # define be32_to_cpu(x) uswap_32(x) |
97 | # define be64_to_cpu(x) uswap_64(x) |
98 | #else |
99 | # define cpu_to_le16(x) uswap_16(x) |
100 | # define cpu_to_le32(x) uswap_32(x) |
101 | # define cpu_to_le64(x) uswap_64(x) |
102 | # define le16_to_cpu(x) uswap_16(x) |
103 | # define le32_to_cpu(x) uswap_32(x) |
104 | # define le64_to_cpu(x) uswap_64(x) |
105 | # define cpu_to_be16(x) (x) |
106 | # define cpu_to_be32(x) (x) |
107 | # define cpu_to_be64(x) (x) |
108 | # define be16_to_cpu(x) (x) |
109 | # define be32_to_cpu(x) (x) |
110 | # define be64_to_cpu(x) (x) |
111 | #endif |
112 | |
113 | #else /* !USE_HOSTCC */ |
114 | |
115 | #ifdef CONFIG_USE_STDINT |
116 | /* Provided by gcc. */ |
117 | #include <stdint.h> |
118 | #else |
119 | /* Type for `void *' pointers. */ |
120 | typedef unsigned long int uintptr_t; |
121 | #endif |
122 | |
123 | #include <linux/string.h> |
124 | #include <linux/types.h> |
125 | #include <asm/byteorder.h> |
126 | |
127 | #if __SIZEOF_LONG__ == 8 |
128 | # define __WORDSIZE 64 |
129 | #elif __SIZEOF_LONG__ == 4 |
130 | # define __WORDSIZE 32 |
131 | #else |
132 | /* |
133 | * Assume 32-bit for now - only newer toolchains support this feature and |
134 | * this is only required for sandbox support at present. |
135 | */ |
136 | #define __WORDSIZE 32 |
137 | #endif |
138 | |
139 | #endif /* USE_HOSTCC */ |
140 | |
141 | #define likely(x) __builtin_expect(!!(x), 1) |
142 | #define unlikely(x) __builtin_expect(!!(x), 0) |
143 | |
144 | #endif |
145 |