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 CONFIG_LOCALTIME_R 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 /* CONFIG_LOCALTIME_R */ 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 int setenv(const char *name, const char *value, int overwrite); 71 72 typedef struct { 73 long tv_sec; 74 long tv_usec; 75 } qemu_timeval; 76 int qemu_gettimeofday(qemu_timeval *tp); 77 78 static inline bool is_daemonized(void) 79 { 80 return false; 81 } 82 83 static inline int os_mlock(void) 84 { 85 return -ENOSYS; 86 } 87 88 #define fsync _commit 89 90 #if !defined(lseek) 91 # define lseek _lseeki64 92 #endif 93 94 int qemu_ftruncate64(int, int64_t); 95 96 #if !defined(ftruncate) 97 # define ftruncate qemu_ftruncate64 98 #endif 99 100 static inline char *realpath(const char *path, char *resolved_path) 101 { 102 _fullpath(resolved_path, path, _MAX_PATH); 103 return resolved_path; 104 } 105 106 /* ??? Mingw appears to export _lock_file and _unlock_file as the functions 107 * with which to lock a stdio handle. But something is wrong in the markup, 108 * either in the header or the library, such that we get undefined references 109 * to "_imp___lock_file" etc when linking. Since we seem to have no other 110 * alternative, and the usage within the logging functions isn't critical, 111 * ignore FILE locking. 112 */ 113 114 static inline void qemu_flockfile(FILE *f) 115 { 116 } 117 118 static inline void qemu_funlockfile(FILE *f) 119 { 120 } 121 122 /* We wrap all the sockets functions so that we can 123 * set errno based on WSAGetLastError() 124 */ 125 126 #undef connect 127 #define connect qemu_connect_wrap 128 int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 129 socklen_t addrlen); 130 131 #undef listen 132 #define listen qemu_listen_wrap 133 int qemu_listen_wrap(int sockfd, int backlog); 134 135 #undef bind 136 #define bind qemu_bind_wrap 137 int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 138 socklen_t addrlen); 139 140 #undef socket 141 #define socket qemu_socket_wrap 142 int qemu_socket_wrap(int domain, int type, int protocol); 143 144 #undef accept 145 #define accept qemu_accept_wrap 146 int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 147 socklen_t *addrlen); 148 149 #undef shutdown 150 #define shutdown qemu_shutdown_wrap 151 int qemu_shutdown_wrap(int sockfd, int how); 152 153 #undef ioctlsocket 154 #define ioctlsocket qemu_ioctlsocket_wrap 155 int qemu_ioctlsocket_wrap(int fd, int req, void *val); 156 157 #undef closesocket 158 #define closesocket qemu_closesocket_wrap 159 int qemu_closesocket_wrap(int fd); 160 161 #undef getsockopt 162 #define getsockopt qemu_getsockopt_wrap 163 int qemu_getsockopt_wrap(int sockfd, int level, int optname, 164 void *optval, socklen_t *optlen); 165 166 #undef setsockopt 167 #define setsockopt qemu_setsockopt_wrap 168 int qemu_setsockopt_wrap(int sockfd, int level, int optname, 169 const void *optval, socklen_t optlen); 170 171 #undef getpeername 172 #define getpeername qemu_getpeername_wrap 173 int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 174 socklen_t *addrlen); 175 176 #undef getsockname 177 #define getsockname qemu_getsockname_wrap 178 int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 179 socklen_t *addrlen); 180 181 #undef send 182 #define send qemu_send_wrap 183 ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 184 185 #undef sendto 186 #define sendto qemu_sendto_wrap 187 ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 188 const struct sockaddr *addr, socklen_t addrlen); 189 190 #undef recv 191 #define recv qemu_recv_wrap 192 ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 193 194 #undef recvfrom 195 #define recvfrom qemu_recvfrom_wrap 196 ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 197 struct sockaddr *addr, socklen_t *addrlen); 198 199 #endif 200