xref: /openbmc/u-boot/include/compiler.h (revision 8a86152d)
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__) || defined(__OpenBSD__)
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 # define __BYTE_ORDER BYTE_ORDER
54 # define __LITTLE_ENDIAN LITTLE_ENDIAN
55 # define __BIG_ENDIAN BIG_ENDIAN
56 #elif defined(__OpenBSD__)
57 # include <endian.h>
58 # define __BYTE_ORDER BYTE_ORDER
59 # define __LITTLE_ENDIAN LITTLE_ENDIAN
60 # define __BIG_ENDIAN BIG_ENDIAN
61 #endif
62 
63 #include <time.h>
64 
65 typedef uint8_t __u8;
66 typedef uint16_t __u16;
67 typedef uint32_t __u32;
68 typedef unsigned int uint;
69 
70 #define uswap_16(x) \
71 	((((x) & 0xff00) >> 8) | \
72 	 (((x) & 0x00ff) << 8))
73 #define uswap_32(x) \
74 	((((x) & 0xff000000) >> 24) | \
75 	 (((x) & 0x00ff0000) >>  8) | \
76 	 (((x) & 0x0000ff00) <<  8) | \
77 	 (((x) & 0x000000ff) << 24))
78 #define _uswap_64(x, sfx) \
79 	((((x) & 0xff00000000000000##sfx) >> 56) | \
80 	 (((x) & 0x00ff000000000000##sfx) >> 40) | \
81 	 (((x) & 0x0000ff0000000000##sfx) >> 24) | \
82 	 (((x) & 0x000000ff00000000##sfx) >>  8) | \
83 	 (((x) & 0x00000000ff000000##sfx) <<  8) | \
84 	 (((x) & 0x0000000000ff0000##sfx) << 24) | \
85 	 (((x) & 0x000000000000ff00##sfx) << 40) | \
86 	 (((x) & 0x00000000000000ff##sfx) << 56))
87 #if defined(__GNUC__)
88 # define uswap_64(x) _uswap_64(x, ull)
89 #else
90 # define uswap_64(x) _uswap_64(x, )
91 #endif
92 
93 #if __BYTE_ORDER == __LITTLE_ENDIAN
94 # define cpu_to_le16(x)		(x)
95 # define cpu_to_le32(x)		(x)
96 # define cpu_to_le64(x)		(x)
97 # define le16_to_cpu(x)		(x)
98 # define le32_to_cpu(x)		(x)
99 # define le64_to_cpu(x)		(x)
100 # define cpu_to_be16(x)		uswap_16(x)
101 # define cpu_to_be32(x)		uswap_32(x)
102 # define cpu_to_be64(x)		uswap_64(x)
103 # define be16_to_cpu(x)		uswap_16(x)
104 # define be32_to_cpu(x)		uswap_32(x)
105 # define be64_to_cpu(x)		uswap_64(x)
106 #else
107 # define cpu_to_le16(x)		uswap_16(x)
108 # define cpu_to_le32(x)		uswap_32(x)
109 # define cpu_to_le64(x)		uswap_64(x)
110 # define le16_to_cpu(x)		uswap_16(x)
111 # define le32_to_cpu(x)		uswap_32(x)
112 # define le64_to_cpu(x)		uswap_64(x)
113 # define cpu_to_be16(x)		(x)
114 # define cpu_to_be32(x)		(x)
115 # define cpu_to_be64(x)		(x)
116 # define be16_to_cpu(x)		(x)
117 # define be32_to_cpu(x)		(x)
118 # define be64_to_cpu(x)		(x)
119 #endif
120 
121 #else /* !USE_HOSTCC */
122 
123 /* Type for `void *' pointers. */
124 typedef unsigned long int uintptr_t;
125 
126 #include <linux/string.h>
127 #include <linux/types.h>
128 #include <asm/byteorder.h>
129 
130 #if __SIZEOF_LONG__ == 8
131 # define __WORDSIZE	64
132 #elif __SIZEOF_LONG__ == 4
133 # define __WORDSIZE	32
134 #else
135 /*
136  * Assume 32-bit for now - only newer toolchains support this feature and
137  * this is only required for sandbox support at present.
138  */
139 #define __WORDSIZE	32
140 #endif
141 
142 #endif /* USE_HOSTCC */
143 
144 #define likely(x)	__builtin_expect(!!(x), 1)
145 #define unlikely(x)	__builtin_expect(!!(x), 0)
146 
147 #endif
148