1#ifndef QEMU_OSDEP_H
2#define QEMU_OSDEP_H
3
4#include <stdarg.h>
5#include <stddef.h>
6#include <stdbool.h>
7#ifdef __OpenBSD__
8#include <sys/types.h>
9#include <sys/signal.h>
10#endif
11
12#include <sys/time.h>
13
14#if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10
15
16typedef unsigned char uint_fast8_t;
17typedef unsigned int uint_fast16_t;
18typedef signed int int_fast16_t;
19#endif
20
21#ifndef glue
22#define xglue(x, y) x ## y
23#define glue(x, y) xglue(x, y)
24#define stringify(s) tostring(s)
25#define tostring(s) #s
26#endif
27
28#ifndef likely
29#if __GNUC__ < 3
30#define __builtin_expect(x, n) (x)
31#endif
32
33#define likely(x) __builtin_expect(!!(x), 1)
34#define unlikely(x) __builtin_expect(!!(x), 0)
35#endif
36
37#ifndef container_of
38#define container_of(ptr, type, member) ({ \
39 const typeof(((type *) 0)->member) *__mptr = (ptr); \
40 (type *) ((char *) __mptr - offsetof(type, member));})
41#endif
42
43
44#ifdef __GNUC__
45#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
46 char __attribute__((unused)) offset_must_be_zero[ \
47 -offsetof(type, field)]; \
48 container_of(dev, type, field);}))
49#else
50#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
51#endif
52
53#define typeof_field(type, field) typeof(((type *)0)->field)
54#define type_check(t1,t2) ((t1*)0 - (t2*)0)
55
56#ifndef MIN
57#define MIN(a, b) (((a) < (b)) ? (a) : (b))
58#endif
59#ifndef MAX
60#define MAX(a, b) (((a) > (b)) ? (a) : (b))
61#endif
62
63#ifndef DIV_ROUND_UP
64#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
65#endif
66
67#ifndef ARRAY_SIZE
68#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
69#endif
70
71#ifndef always_inline
72#if !((__GNUC__ < 3) || defined(__APPLE__))
73#ifdef __OPTIMIZE__
74#undef inline
75#define inline __attribute__ (( always_inline )) __inline__
76#endif
77#endif
78#else
79#undef inline
80#define inline always_inline
81#endif
82
83#define qemu_printf printf
84
85int qemu_daemon(int nochdir, int noclose);
86void *qemu_memalign(size_t alignment, size_t size);
87void *qemu_vmalloc(size_t size);
88void qemu_vfree(void *ptr);
89
90#define QEMU_MADV_INVALID -1
91
92#if defined(CONFIG_MADVISE)
93
94#define QEMU_MADV_WILLNEED MADV_WILLNEED
95#define QEMU_MADV_DONTNEED MADV_DONTNEED
96#ifdef MADV_DONTFORK
97#define QEMU_MADV_DONTFORK MADV_DONTFORK
98#else
99#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
100#endif
101#ifdef MADV_MERGEABLE
102#define QEMU_MADV_MERGEABLE MADV_MERGEABLE
103#else
104#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
105#endif
106#ifdef MADV_DONTDUMP
107#define QEMU_MADV_DONTDUMP MADV_DONTDUMP
108#else
109#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
110#endif
111#ifdef MADV_HUGEPAGE
112#define QEMU_MADV_HUGEPAGE MADV_HUGEPAGE
113#else
114#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
115#endif
116
117#elif defined(CONFIG_POSIX_MADVISE)
118
119#define QEMU_MADV_WILLNEED POSIX_MADV_WILLNEED
120#define QEMU_MADV_DONTNEED POSIX_MADV_DONTNEED
121#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
122#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
123#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
124#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
125
126#else
127
128#define QEMU_MADV_WILLNEED QEMU_MADV_INVALID
129#define QEMU_MADV_DONTNEED QEMU_MADV_INVALID
130#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
131#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
132#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
133#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
134
135#endif
136
137int qemu_madvise(void *addr, size_t len, int advice);
138
139int qemu_open(const char *name, int flags, ...);
140int qemu_close(int fd);
141
142#if defined(__HAIKU__) && defined(__i386__)
143#define FMT_pid "%ld"
144#elif defined(WIN64)
145#define FMT_pid "%" PRId64
146#else
147#define FMT_pid "%d"
148#endif
149
150int qemu_create_pidfile(const char *filename);
151int qemu_get_thread_id(void);
152
153#ifdef _WIN32
154static inline void qemu_timersub(const struct timeval *val1,
155 const struct timeval *val2,
156 struct timeval *res)
157{
158 res->tv_sec = val1->tv_sec - val2->tv_sec;
159 if (val1->tv_usec < val2->tv_usec) {
160 res->tv_sec--;
161 res->tv_usec = val1->tv_usec - val2->tv_usec + 1000 * 1000;
162 } else {
163 res->tv_usec = val1->tv_usec - val2->tv_usec;
164 }
165}
166#else
167#define qemu_timersub timersub
168#endif
169
170void qemu_set_cloexec(int fd);
171
172void qemu_set_version(const char *);
173const char *qemu_get_version(void);
174
175void fips_set_state(bool requested);
176bool fips_get_state(void);
177
178#endif
179
