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 <winsock2.h> 30 #include <windows.h> 31 #include <ws2tcpip.h> 32 33 #if defined(_WIN64) 34 /* On w64, setjmp is implemented by _setjmp which needs a second parameter. 35 * If this parameter is NULL, longjump does no stack unwinding. 36 * That is what we need for QEMU. Passing the value of register rsp (default) 37 * lets longjmp try a stack unwinding which will crash with generated code. */ 38 # undef setjmp 39 # define setjmp(env) _setjmp(env, NULL) 40 #endif 41 /* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify 42 * "longjmp and don't touch the signal masks". Since we know that the 43 * savemask parameter will always be zero we can safely define these 44 * in terms of setjmp/longjmp on Win32. 45 */ 46 #define sigjmp_buf jmp_buf 47 #define sigsetjmp(env, savemask) setjmp(env) 48 #define siglongjmp(env, val) longjmp(env, val) 49 50 /* Missing POSIX functions. Don't use MinGW-w64 macros. */ 51 #ifndef _POSIX_THREAD_SAFE_FUNCTIONS 52 #undef gmtime_r 53 struct tm *gmtime_r(const time_t *timep, struct tm *result); 54 #undef localtime_r 55 struct tm *localtime_r(const time_t *timep, struct tm *result); 56 #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ 57 58 static inline void os_setup_signal_handling(void) {} 59 static inline void os_daemonize(void) {} 60 static inline void os_setup_post(void) {} 61 void os_set_line_buffering(void); 62 static inline void os_set_proc_name(const char *dummy) {} 63 64 int getpagesize(void); 65 66 #if !defined(EPROTONOSUPPORT) 67 # define EPROTONOSUPPORT EINVAL 68 #endif 69 70 typedef struct { 71 long tv_sec; 72 long tv_usec; 73 } qemu_timeval; 74 int qemu_gettimeofday(qemu_timeval *tp); 75 76 static inline bool is_daemonized(void) 77 { 78 return false; 79 } 80 81 static inline int os_mlock(void) 82 { 83 return -ENOSYS; 84 } 85 86 #define fsync _commit 87 88 #if !defined(lseek) 89 # define lseek _lseeki64 90 #endif 91 92 int qemu_ftruncate64(int, int64_t); 93 94 #if !defined(ftruncate) 95 # define ftruncate qemu_ftruncate64 96 #endif 97 98 static inline char *realpath(const char *path, char *resolved_path) 99 { 100 _fullpath(resolved_path, path, _MAX_PATH); 101 return resolved_path; 102 } 103 104 /* ??? Mingw appears to export _lock_file and _unlock_file as the functions 105 * with which to lock a stdio handle. But something is wrong in the markup, 106 * either in the header or the library, such that we get undefined references 107 * to "_imp___lock_file" etc when linking. Since we seem to have no other 108 * alternative, and the usage within the logging functions isn't critical, 109 * ignore FILE locking. 110 */ 111 112 static inline void qemu_flockfile(FILE *f) 113 { 114 } 115 116 static inline void qemu_funlockfile(FILE *f) 117 { 118 } 119 120 /* We wrap all the sockets functions so that we can 121 * set errno based on WSAGetLastError() 122 */ 123 124 #undef connect 125 #define connect qemu_connect_wrap 126 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 127 socklen_t addrlen); 128 129 #undef listen 130 #define listen qemu_listen_wrap 131 int qemu_listen_wrap(int sockfd, int backlog); 132 133 #undef bind 134 #define bind qemu_bind_wrap 135 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 136 socklen_t addrlen); 137 138 #undef socket 139 #define socket qemu_socket_wrap 140 int qemu_socket_wrap(int domain, int type, int protocol); 141 142 #undef accept 143 #define accept qemu_accept_wrap 144 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 145 socklen_t *addrlen); 146 147 #undef shutdown 148 #define shutdown qemu_shutdown_wrap 149 int qemu_shutdown_wrap(int sockfd, int how); 150 151 #undef ioctlsocket 152 #define ioctlsocket qemu_ioctlsocket_wrap 153 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 154 155 #undef closesocket 156 #define closesocket qemu_closesocket_wrap 157 int qemu_closesocket_wrap(int fd); 158 159 #undef getsockopt 160 #define getsockopt qemu_getsockopt_wrap 161 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 162 void *optval, socklen_t *optlen); 163 164 #undef setsockopt 165 #define setsockopt qemu_setsockopt_wrap 166 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 167 const void *optval, socklen_t optlen); 168 169 #undef getpeername 170 #define getpeername qemu_getpeername_wrap 171 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 172 socklen_t *addrlen); 173 174 #undef getsockname 175 #define getsockname qemu_getsockname_wrap 176 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 177 socklen_t *addrlen); 178 179 #undef send 180 #define send qemu_send_wrap 181 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 182 183 #undef sendto 184 #define sendto qemu_sendto_wrap 185 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 186 const struct sockaddr *addr, socklen_t addrlen); 187 188 #undef recv 189 #define recv qemu_recv_wrap 190 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 191 192 #undef recvfrom 193 #define recvfrom qemu_recvfrom_wrap 194 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 195 struct sockaddr *addr, socklen_t *addrlen); 196 197 #endif 198