diff options
Diffstat (limited to 'include/system/os-win32.h')
| -rw-r--r-- | include/system/os-win32.h | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/include/system/os-win32.h b/include/system/os-win32.h new file mode 100644 index 0000000..b82a5d3 --- /dev/null +++ b/include/system/os-win32.h @@ -0,0 +1,277 @@ +/* + * win32 specific declarations + * + * Copyright (c) 2003-2008 Fabrice Bellard + * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef QEMU_OS_WIN32_H +#define QEMU_OS_WIN32_H + +#include <winsock2.h> +#include <windows.h> +#include <ws2tcpip.h> +#include "qemu/typedefs.h" + +#ifdef HAVE_AFUNIX_H +#include <afunix.h> +#else +/* + * Fallback definitions of things we need in afunix.h, if not available from + * the used Windows SDK or MinGW headers. + */ +#define UNIX_PATH_MAX 108 + +typedef struct sockaddr_un { + ADDRESS_FAMILY sun_family; + char sun_path[UNIX_PATH_MAX]; +} SOCKADDR_UN, *PSOCKADDR_UN; + +#define SIO_AF_UNIX_GETPEERPID _WSAIOR(IOC_VENDOR, 256) +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(__aarch64__) +/* + * On windows-arm64, setjmp is available in only one variant, and longjmp always + * does stack unwinding. This crash with generated code. + * Thus, we use another implementation of setjmp (not windows one), coming from + * mingw, which never performs stack unwinding. + */ +#undef setjmp +#undef longjmp +/* + * These functions are not declared in setjmp.h because __aarch64__ defines + * setjmp to _setjmpex instead. However, they are still defined in libmingwex.a, + * which gets linked automatically. + */ +int __mingw_setjmp(jmp_buf); +void __attribute__((noreturn)) __mingw_longjmp(jmp_buf, int); +#define setjmp(env) __mingw_setjmp(env) +#define longjmp(env, val) __mingw_longjmp(env, val) +#elif defined(_WIN64) +/* + * On windows-x64, setjmp is implemented by _setjmp which needs a second parameter. + * If this parameter is NULL, longjump does no stack unwinding. + * That is what we need for QEMU. Passing the value of register rsp (default) + * lets longjmp try a stack unwinding which will crash with generated code. + */ +# undef setjmp +# define setjmp(env) _setjmp(env, NULL) +#endif /* __aarch64__ */ +/* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify + * "longjmp and don't touch the signal masks". Since we know that the + * savemask parameter will always be zero we can safely define these + * in terms of setjmp/longjmp on Win32. + */ +#define sigjmp_buf jmp_buf +#define sigsetjmp(env, savemask) setjmp(env) +#define siglongjmp(env, val) longjmp(env, val) + +/* Missing POSIX functions. Don't use MinGW-w64 macros. */ +#ifndef _POSIX_THREAD_SAFE_FUNCTIONS +#undef gmtime_r +struct tm *gmtime_r(const time_t *timep, struct tm *result); +#undef localtime_r +struct tm *localtime_r(const time_t *timep, struct tm *result); +#endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ + +static inline void os_setup_signal_handling(void) {} +static inline void os_daemonize(void) {} +static inline void os_setup_post(void) {} +static inline void os_set_proc_name(const char *dummy) {} +void os_set_line_buffering(void); +void os_setup_early_signal_handling(void); + +int getpagesize(void); + +#if !defined(EPROTONOSUPPORT) +# define EPROTONOSUPPORT EINVAL +#endif + +static inline int os_set_daemonize(bool d) +{ + if (d) { + return -ENOTSUP; + } + return 0; +} + +static inline bool is_daemonized(void) +{ + return false; +} + +static inline int os_mlock(void) +{ + return -ENOSYS; +} + +static inline void os_setup_limits(void) +{ + return; +} + +#define fsync _commit + +#if !defined(lseek) +# define lseek _lseeki64 +#endif + +int qemu_ftruncate64(int, int64_t); + +#if !defined(ftruncate) +# define ftruncate qemu_ftruncate64 +#endif + +static inline char *realpath(const char *path, char *resolved_path) +{ + _fullpath(resolved_path, path, _MAX_PATH); + return resolved_path; +} + +/* + * Older versions of MinGW do not import _lock_file and _unlock_file properly. + * This was fixed for v6.0.0 with commit b48e3ac8969d. + */ +static inline void qemu_flockfile(FILE *f) +{ +#ifdef HAVE__LOCK_FILE + _lock_file(f); +#endif +} + +static inline void qemu_funlockfile(FILE *f) +{ +#ifdef HAVE__LOCK_FILE + _unlock_file(f); +#endif +} + +/* Helper for WSAEventSelect, to report errors */ +bool qemu_socket_select(int sockfd, WSAEVENT hEventObject, + long lNetworkEvents, Error **errp); + +bool qemu_socket_unselect(int sockfd, Error **errp); + +/* We wrap all the sockets functions so that we can set errno based on + * WSAGetLastError(), and use file-descriptors instead of SOCKET. + */ + +/* + * qemu_close_socket_osfhandle: + * @fd: a file descriptor associated with a SOCKET + * + * Close only the C run-time file descriptor, leave the SOCKET opened. + * + * Returns zero on success. On error, -1 is returned, and errno is set to + * indicate the error. + */ +int qemu_close_socket_osfhandle(int fd); + +#undef close +#define close qemu_close_wrap +int qemu_close_wrap(int fd); + +#undef connect +#define connect qemu_connect_wrap +int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, + socklen_t addrlen); + +#undef listen +#define listen qemu_listen_wrap +int qemu_listen_wrap(int sockfd, int backlog); + +#undef bind +#define bind qemu_bind_wrap +int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, + socklen_t addrlen); + +#undef socket +#define socket qemu_socket_wrap +int qemu_socket_wrap(int domain, int type, int protocol); + +#undef accept +#define accept qemu_accept_wrap +int qemu_accept_wrap(int sockfd, struct sockaddr *addr, + socklen_t *addrlen); + +#undef shutdown +#define shutdown qemu_shutdown_wrap +int qemu_shutdown_wrap(int sockfd, int how); + +#undef ioctlsocket +#define ioctlsocket qemu_ioctlsocket_wrap +int qemu_ioctlsocket_wrap(int fd, int req, void *val); + +#undef getsockopt +#define getsockopt qemu_getsockopt_wrap +int qemu_getsockopt_wrap(int sockfd, int level, int optname, + void *optval, socklen_t *optlen); + +#undef setsockopt +#define setsockopt qemu_setsockopt_wrap +int qemu_setsockopt_wrap(int sockfd, int level, int optname, + const void *optval, socklen_t optlen); + +#undef getpeername +#define getpeername qemu_getpeername_wrap +int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, + socklen_t *addrlen); + +#undef getsockname +#define getsockname qemu_getsockname_wrap +int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, + socklen_t *addrlen); + +#undef send +#define send qemu_send_wrap +ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); + +#undef sendto +#define sendto qemu_sendto_wrap +ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, + const struct sockaddr *addr, socklen_t addrlen); + +#undef recv +#define recv qemu_recv_wrap +ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); + +#undef recvfrom +#define recvfrom qemu_recvfrom_wrap +ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, + struct sockaddr *addr, socklen_t *addrlen); + +EXCEPTION_DISPOSITION +win32_close_exception_handler(struct _EXCEPTION_RECORD*, void*, + struct _CONTEXT*, void*); + +void *qemu_win32_map_alloc(size_t size, HANDLE *h, Error **errp); +void qemu_win32_map_free(void *ptr, HANDLE h, Error **errp); + +#ifdef __cplusplus +} +#endif + +#endif |