blob: 54999a7e82d056c656d24259d9aa7e6ba167180e [file] [log] [blame]
Mike Frysinger37566092009-07-02 19:23:25 -04001/*
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
Mike Frysinger37566092009-07-02 19:23:25 -040028#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>
Jeroen Hofstee5bce5dc2011-07-19 10:41:48 +000047#elif defined(__MACH__) || defined(__FreeBSD__)
Mike Frysinger37566092009-07-02 19:23:25 -040048# include <machine/endian.h>
49typedef unsigned long ulong;
Mike Frysinger37566092009-07-02 19:23:25 -040050#endif
51
52typedef uint8_t __u8;
53typedef uint16_t __u16;
54typedef uint32_t __u32;
Mike Frysingerb050c722010-04-20 05:49:30 -040055typedef unsigned int uint;
Mike Frysinger37566092009-07-02 19:23:25 -040056
57#define uswap_16(x) \
58 ((((x) & 0xff00) >> 8) | \
59 (((x) & 0x00ff) << 8))
60#define uswap_32(x) \
61 ((((x) & 0xff000000) >> 24) | \
62 (((x) & 0x00ff0000) >> 8) | \
63 (((x) & 0x0000ff00) << 8) | \
64 (((x) & 0x000000ff) << 24))
65#define _uswap_64(x, sfx) \
66 ((((x) & 0xff00000000000000##sfx) >> 56) | \
67 (((x) & 0x00ff000000000000##sfx) >> 40) | \
68 (((x) & 0x0000ff0000000000##sfx) >> 24) | \
69 (((x) & 0x000000ff00000000##sfx) >> 8) | \
70 (((x) & 0x00000000ff000000##sfx) << 8) | \
71 (((x) & 0x0000000000ff0000##sfx) << 24) | \
72 (((x) & 0x000000000000ff00##sfx) << 40) | \
73 (((x) & 0x00000000000000ff##sfx) << 56))
74#if defined(__GNUC__)
75# define uswap_64(x) _uswap_64(x, ull)
76#else
77# define uswap_64(x) _uswap_64(x, )
78#endif
79
80#if __BYTE_ORDER == __LITTLE_ENDIAN
81# define cpu_to_le16(x) (x)
82# define cpu_to_le32(x) (x)
83# define cpu_to_le64(x) (x)
84# define le16_to_cpu(x) (x)
85# define le32_to_cpu(x) (x)
86# define le64_to_cpu(x) (x)
87# define cpu_to_be16(x) uswap_16(x)
88# define cpu_to_be32(x) uswap_32(x)
89# define cpu_to_be64(x) uswap_64(x)
90# define be16_to_cpu(x) uswap_16(x)
91# define be32_to_cpu(x) uswap_32(x)
92# define be64_to_cpu(x) uswap_64(x)
93#else
94# define cpu_to_le16(x) uswap_16(x)
95# define cpu_to_le32(x) uswap_32(x)
96# define cpu_to_le64(x) uswap_64(x)
97# define le16_to_cpu(x) uswap_16(x)
98# define le32_to_cpu(x) uswap_32(x)
99# define le64_to_cpu(x) uswap_64(x)
100# define cpu_to_be16(x) (x)
101# define cpu_to_be32(x) (x)
102# define cpu_to_be64(x) (x)
103# define be16_to_cpu(x) (x)
104# define be32_to_cpu(x) (x)
105# define be64_to_cpu(x) (x)
106#endif
107
108#else /* !USE_HOSTCC */
109
110#include <linux/string.h>
111#include <linux/types.h>
112#include <asm/byteorder.h>
113
Simon Glassa7551a32011-09-23 06:22:06 +0000114#if __SIZEOF_LONG__ == 8
115# define __WORDSIZE 64
116#elif __SIZEOF_LONG__ == 4
117# define __WORDSIZE 32
118#else
119/*
120 * Assume 32-bit for now - only newer toolchains support this feature and
121 * this is only required for sandbox support at present.
122 */
123#define __WORDSIZE 32
124#endif
125
Mike Frysinger37566092009-07-02 19:23:25 -0400126/* Types for `void *' pointers. */
127#if __WORDSIZE == 64
128typedef unsigned long int uintptr_t;
Simon Glassa7551a32011-09-23 06:22:06 +0000129#elif __WORDSIZE == 32
Mike Frysinger37566092009-07-02 19:23:25 -0400130typedef unsigned int uintptr_t;
Simon Glassa7551a32011-09-23 06:22:06 +0000131#else
132#error "__WORDSIZE has unexpected value"
Mike Frysinger37566092009-07-02 19:23:25 -0400133#endif
134
135#endif
136
Anton Vorontsovd8bc55a2009-09-01 20:58:03 +0400137/* compiler options */
138#define uninitialized_var(x) x = x
139
Matthias Kaehlckeb63815e2009-12-22 23:05:45 +0100140#define likely(x) __builtin_expect(!!(x), 1)
141#define unlikely(x) __builtin_expect(!!(x), 0)
142
Mike Frysinger37566092009-07-02 19:23:25 -0400143#endif