xref: /openbmc/qemu/include/sysemu/os-win32.h (revision 1fd6bb44)
1 /*
2  * win32 specific declarations
3  *
4  * Copyright (c) 2003-2008 Fabrice Bellard
5  * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com>
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #ifndef QEMU_OS_WIN32_H
27 #define QEMU_OS_WIN32_H
28 
29 #include <windows.h>
30 #include <winsock2.h>
31 
32 /* Workaround for older versions of MinGW. */
33 #ifndef ECONNREFUSED
34 # define ECONNREFUSED WSAECONNREFUSED
35 #endif
36 #ifndef EINPROGRESS
37 # define EINPROGRESS  WSAEINPROGRESS
38 #endif
39 #ifndef EHOSTUNREACH
40 # define EHOSTUNREACH WSAEHOSTUNREACH
41 #endif
42 #ifndef EINTR
43 # define EINTR        WSAEINTR
44 #endif
45 #ifndef EINPROGRESS
46 # define EINPROGRESS  WSAEINPROGRESS
47 #endif
48 #ifndef ENETUNREACH
49 # define ENETUNREACH  WSAENETUNREACH
50 #endif
51 #ifndef ENOTCONN
52 # define ENOTCONN     WSAENOTCONN
53 #endif
54 #ifndef EWOULDBLOCK
55 # define EWOULDBLOCK  WSAEWOULDBLOCK
56 #endif
57 
58 #if defined(_WIN64)
59 /* On w64, setjmp is implemented by _setjmp which needs a second parameter.
60  * If this parameter is NULL, longjump does no stack unwinding.
61  * That is what we need for QEMU. Passing the value of register rsp (default)
62  * lets longjmp try a stack unwinding which will crash with generated code. */
63 # undef setjmp
64 # define setjmp(env) _setjmp(env, NULL)
65 #endif
66 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify
67  * "longjmp and don't touch the signal masks". Since we know that the
68  * savemask parameter will always be zero we can safely define these
69  * in terms of setjmp/longjmp on Win32.
70  */
71 #define sigjmp_buf jmp_buf
72 #define sigsetjmp(env, savemask) setjmp(env)
73 #define siglongjmp(env, val) longjmp(env, val)
74 
75 /* Declaration of ffs() is missing in MinGW's strings.h. */
76 int ffs(int i);
77 
78 /* Missing POSIX functions. Don't use MinGW-w64 macros. */
79 #undef gmtime_r
80 struct tm *gmtime_r(const time_t *timep, struct tm *result);
81 #undef localtime_r
82 struct tm *localtime_r(const time_t *timep, struct tm *result);
83 
84 char *strtok_r(char *str, const char *delim, char **saveptr);
85 
86 static inline void os_setup_signal_handling(void) {}
87 static inline void os_daemonize(void) {}
88 static inline void os_setup_post(void) {}
89 void os_set_line_buffering(void);
90 static inline void os_set_proc_name(const char *dummy) {}
91 
92 #if !defined(EPROTONOSUPPORT)
93 # define EPROTONOSUPPORT EINVAL
94 #endif
95 
96 int setenv(const char *name, const char *value, int overwrite);
97 
98 typedef struct {
99     long tv_sec;
100     long tv_usec;
101 } qemu_timeval;
102 int qemu_gettimeofday(qemu_timeval *tp);
103 
104 static inline bool is_daemonized(void)
105 {
106     return false;
107 }
108 
109 #endif
110