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#include <stdbool.h>
10
11#ifdef USE_HOSTCC
12
13#if defined(__BEOS__)	 || \
14    defined(__NetBSD__)  || \
15    defined(__FreeBSD__) || \
16    defined(__sun__)	 || \
17    defined(__APPLE__)
18# include <inttypes.h>
19#elif defined(__linux__) || defined(__WIN32__) || defined(__MINGW32__) || defined(__OpenBSD__)
20# include <stdint.h>
21#endif
22
23#include <errno.h>
24#include <stdlib.h>
25#include <stdint.h>
26#include <stdio.h>
27#include <string.h>
28
29#if !defined(__WIN32__) && !defined(__MINGW32__)
30# include <sys/mman.h>
31#endif
32
33/* Not all systems (like Windows) has this define, and yes
34 * we do replace/emulate mmap() on those systems ...
35 */
36#ifndef MAP_FAILED
37# define MAP_FAILED ((void *)-1)
38#endif
39
40#include <fcntl.h>
41#ifndef O_BINARY		/* should be define'd on __WIN32__ */
42#define O_BINARY	0
43#endif
44
45#ifdef __linux__
46# include <endian.h>
47# include <byteswap.h>
48#elif defined(__MACH__) || defined(__FreeBSD__)
49# include <machine/endian.h>
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
65typedef uint8_t __u8;
66typedef uint16_t __u16;
67typedef uint32_t __u32;
68typedef unsigned int uint;
69typedef unsigned long ulong;
70
71/* Define these on the host so we can build some target code */
72typedef __u32 u32;
73
74#define uswap_16(x) \
75	((((x) & 0xff00) >> 8) | \
76	 (((x) & 0x00ff) << 8))
77#define uswap_32(x) \
78	((((x) & 0xff000000) >> 24) | \
79	 (((x) & 0x00ff0000) >>  8) | \
80	 (((x) & 0x0000ff00) <<  8) | \
81	 (((x) & 0x000000ff) << 24))
82#define _uswap_64(x, sfx) \
83	((((x) & 0xff00000000000000##sfx) >> 56) | \
84	 (((x) & 0x00ff000000000000##sfx) >> 40) | \
85	 (((x) & 0x0000ff0000000000##sfx) >> 24) | \
86	 (((x) & 0x000000ff00000000##sfx) >>  8) | \
87	 (((x) & 0x00000000ff000000##sfx) <<  8) | \
88	 (((x) & 0x0000000000ff0000##sfx) << 24) | \
89	 (((x) & 0x000000000000ff00##sfx) << 40) | \
90	 (((x) & 0x00000000000000ff##sfx) << 56))
91#if defined(__GNUC__)
92# define uswap_64(x) _uswap_64(x, ull)
93#else
94# define uswap_64(x) _uswap_64(x, )
95#endif
96
97#if __BYTE_ORDER == __LITTLE_ENDIAN
98# define cpu_to_le16(x)		(x)
99# define cpu_to_le32(x)		(x)
100# define cpu_to_le64(x)		(x)
101# define le16_to_cpu(x)		(x)
102# define le32_to_cpu(x)		(x)
103# define le64_to_cpu(x)		(x)
104# define cpu_to_be16(x)		uswap_16(x)
105# define cpu_to_be32(x)		uswap_32(x)
106# define cpu_to_be64(x)		uswap_64(x)
107# define be16_to_cpu(x)		uswap_16(x)
108# define be32_to_cpu(x)		uswap_32(x)
109# define be64_to_cpu(x)		uswap_64(x)
110#else
111# define cpu_to_le16(x)		uswap_16(x)
112# define cpu_to_le32(x)		uswap_32(x)
113# define cpu_to_le64(x)		uswap_64(x)
114# define le16_to_cpu(x)		uswap_16(x)
115# define le32_to_cpu(x)		uswap_32(x)
116# define le64_to_cpu(x)		uswap_64(x)
117# define cpu_to_be16(x)		(x)
118# define cpu_to_be32(x)		(x)
119# define cpu_to_be64(x)		(x)
120# define be16_to_cpu(x)		(x)
121# define be32_to_cpu(x)		(x)
122# define be64_to_cpu(x)		(x)
123#endif
124
125#else /* !USE_HOSTCC */
126
127/* Type for `void *' pointers. */
128typedef unsigned long int uintptr_t;
129
130#include <linux/string.h>
131#include <linux/types.h>
132#include <asm/byteorder.h>
133
134#if __SIZEOF_LONG__ == 8
135# define __WORDSIZE	64
136#elif __SIZEOF_LONG__ == 4
137# define __WORDSIZE	32
138#else
139/*
140 * Assume 32-bit for now - only newer toolchains support this feature and
141 * this is only required for sandbox support at present.
142 */
143#define __WORDSIZE	32
144#endif
145
146#endif /* USE_HOSTCC */
147
148#define likely(x)	__builtin_expect(!!(x), 1)
149#define unlikely(x)	__builtin_expect(!!(x), 0)
150
151#ifdef __LP64__
152#define MEM_SUPPORT_64BIT_DATA	1
153#else
154#define MEM_SUPPORT_64BIT_DATA	0
155#endif
156
157/**
158 * tools_build() - check if we are building host tools
159 *
160 * Return: true if building for the host, false if for a target
161 */
162static inline bool tools_build(void)
163{
164#ifdef USE_HOSTCC
165	return true;
166#else
167	return false;
168#endif
169}
170
171#endif
172