/* Common header file that is included by all of qemu. */ #ifndef QEMU_COMMON_H #define QEMU_COMMON_H #include "config-host.h" #define QEMU_NORETURN __attribute__ ((__noreturn__)) #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) #else #define QEMU_WARN_UNUSED_RESULT #endif #define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1]; typedef struct QEMUTimer QEMUTimer; typedef struct QEMUFile QEMUFile; typedef struct QEMUBH QEMUBH; typedef struct DeviceState DeviceState; struct Monitor; typedef struct Monitor Monitor; /* we put basic includes here to avoid repeating them in device drivers */ #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <stdbool.h> #include <string.h> #include <strings.h> #include <inttypes.h> #include <limits.h> #include <time.h> #include <ctype.h> #include <errno.h> #include <unistd.h> #include <fcntl.h> #include <sys/stat.h> #include <sys/time.h> #include <assert.h> #ifdef _WIN32 #include "qemu-os-win32.h" #endif #ifdef CONFIG_POSIX #include "qemu-os-posix.h" #endif #ifndef O_LARGEFILE #define O_LARGEFILE 0 #endif #ifndef O_BINARY #define O_BINARY 0 #endif #ifndef MAP_ANONYMOUS #define MAP_ANONYMOUS MAP_ANON #endif #ifndef ENOMEDIUM #define ENOMEDIUM ENODEV #endif #if !defined(ENOTSUP) #define ENOTSUP 4096 #endif #ifndef TIME_MAX #define TIME_MAX LONG_MAX #endif #ifndef CONFIG_IOVEC #define CONFIG_IOVEC struct iovec { void *iov_base; size_t iov_len; }; /* * Use the same value as Linux for now. */ #define IOV_MAX 1024 #else #include <sys/uio.h> #endif #if defined __GNUC__ # if (__GNUC__ < 4) || \ defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) # else /* Use gnu_printf when supported (qemu uses standard format strings). */ # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) # endif #else #define GCC_ATTR /**/ #define GCC_FMT_ATTR(n, m) #endif typedef int (*fprintf_function)(FILE *f, const char *fmt, ...) GCC_FMT_ATTR(2, 3); #ifdef _WIN32 #define fsync _commit #define lseek _lseeki64 int qemu_ftruncate64(int, int64_t); #define ftruncate qemu_ftruncate64 static inline char *realpath(const char *path, char *resolved_path) { _fullpath(resolved_path, path, _MAX_PATH); return resolved_path; } #define PRId64 "I64d" #define PRIx64 "I64x" #define PRIu64 "I64u" #define PRIo64 "I64o" #endif /* FIXME: Remove NEED_CPU_H. */ #ifndef NEED_CPU_H #include <setjmp.h> #include "osdep.h" #include "bswap.h" #else #include "cpu.h" #endif /* !defined(NEED_CPU_H) */ /* bottom halves */ typedef void QEMUBHFunc(void *opaque); void async_context_push(void); void async_context_pop(void); int get_async_context_id(void); QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque); void qemu_bh_schedule(QEMUBH *bh); /* Bottom halfs that are scheduled from a bottom half handler are instantly * invoked. This can create an infinite loop if a bottom half handler * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by * ensuring that the bottom half isn't executed until the next main loop * iteration. */ void qemu_bh_schedule_idle(QEMUBH *bh); void qemu_bh_cancel(QEMUBH *bh); void qemu_bh_delete(QEMUBH *bh); int qemu_bh_poll(void); void qemu_bh_update_timeout(int *timeout); void qemu_get_timedate(struct tm *tm, int offset); int qemu_timedate_diff(struct tm *tm); /* cutils.c */ void pstrcpy(char *buf, int buf_size, const char *str); char *pstrcat(char *buf, int buf_size, const char *s); int strstart(const char *str, const char *val, const char **ptr); int stristart(const char *str, const char *val, const char **ptr); int qemu_strnlen(const char *s, int max_len); time_t mktimegm(struct tm *tm); int qemu_fls(int i); int qemu_fdatasync(int fd); int fcntl_setfl(int fd, int flag); /* * strtosz() suffixes used to specify the default treatment of an * argument passed to strtosz() without an explicit suffix. * These should be defined using upper case characters in the range * A-Z, as strtosz() will use qemu_toupper() on the given argument * prior to comparison. */ #define STRTOSZ_DEFSUFFIX_TB 'T' #define STRTOSZ_DEFSUFFIX_GB 'G' #define STRTOSZ_DEFSUFFIX_MB 'M' #define STRTOSZ_DEFSUFFIX_KB 'K' #define STRTOSZ_DEFSUFFIX_B 'B' int64_t strtosz(const char *nptr, char **end); int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); /* path.c */ void init_paths(const char *prefix); const char *path(const char *pathname); #define qemu_isalnum(c) isalnum((unsigned char)(c)) #define qemu_isalpha(c) isalpha((unsigned char)(c)) #define qemu_iscntrl(c) iscntrl((unsigned char)(c)) #define qemu_isdigit(c) isdigit((unsigned char)(c)) #define qemu_isgraph(c) isgraph((unsigned char)(c)) #define qemu_islower(c) islower((unsigned char)(c)) #define qemu_isprint(c) isprint((unsigned char)(c)) #define qemu_ispunct(c) ispunct((unsigned char)(c)) #define qemu_isspace(c) isspace((unsigned char)(c)) #define qemu_isupper(c) isupper((unsigned char)(c)) #define qemu_isxdigit(c) isxdigit((unsigned char)(c)) #define qemu_tolower(c) tolower((unsigned char)(c)) #define qemu_toupper(c) toupper((unsigned char)(c)) #define qemu_isascii(c) isascii((unsigned char)(c)) #define qemu_toascii(c) toascii((unsigned char)(c)) #ifdef _WIN32 /* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */ int ffs(int i); #endif void *qemu_oom_check(void *ptr); void *qemu_malloc(size_t size); void *qemu_realloc(void *ptr, size_t size); void *qemu_mallocz(size_t size); void qemu_free(void *ptr); char *qemu_strdup(const char *str); char *qemu_strndup(const char *str, size_t size); void qemu_mutex_lock_iothread(void); void qemu_mutex_unlock_iothread(void); int qemu_open(const char *name, int flags, ...); ssize_t qemu_write_full(int fd, const void *buf, size_t count) QEMU_WARN_UNUSED_RESULT; void qemu_set_cloexec(int fd); #ifndef _WIN32 int qemu_add_child_watch(pid_t pid); int qemu_eventfd(int pipefd[2]); int qemu_pipe(int pipefd[2]); #endif void *get_mmap_addr(unsigned long size); /* Error handling. */ void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2); /* IO callbacks. */ typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size); typedef int IOCanReadHandler(void *opaque); typedef void IOHandler(void *opaque); void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds); void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int rc); struct ParallelIOArg { void *buffer; int count; }; typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size); /* A load of opaque types so that device init declarations don't have to pull in all the real definitions. */ typedef struct NICInfo NICInfo; typedef struct HCIInfo HCIInfo; typedef struct AudioState AudioState; typedef struct BlockDriverState BlockDriverState; typedef struct DriveInfo DriveInfo; typedef struct DisplayState DisplayState; typedef struct DisplayChangeListener DisplayChangeListener; typedef struct DisplaySurface DisplaySurface; typedef struct DisplayAllocator DisplayAllocator; typedef struct PixelFormat PixelFormat; typedef struct TextConsole TextConsole; typedef TextConsole QEMUConsole; typedef struct CharDriverState CharDriverState; typedef struct MACAddr MACAddr; typedef struct VLANState VLANState; typedef struct VLANClientState VLANClientState; typedef struct i2c_bus i2c_bus; typedef struct i2c_slave i2c_slave; typedef struct SMBusDevice SMBusDevice; typedef struct PCIHostState PCIHostState; typedef struct PCIExpressHost PCIExpressHost; typedef struct PCIBus PCIBus; typedef struct PCIDevice PCIDevice; typedef struct SerialState SerialState; typedef struct IRQState *qemu_irq; typedef struct PCMCIACardState PCMCIACardState; typedef struct MouseTransformInfo MouseTransformInfo; typedef struct uWireSlave uWireSlave; typedef struct I2SCodec I2SCodec; typedef struct SSIBus SSIBus; typedef struct EventNotifier EventNotifier; typedef struct VirtIODevice VirtIODevice; typedef uint64_t pcibus_t; typedef enum { IF_NONE, IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN, IF_COUNT } BlockInterfaceType; void cpu_exec_init_all(unsigned long tb_size); /* CPU save/load. */ void cpu_save(QEMUFile *f, void *opaque); int cpu_load(QEMUFile *f, void *opaque, int version_id); /* Force QEMU to stop what it's doing and service IO */ void qemu_service_io(void); /* Force QEMU to process pending events */ void qemu_notify_event(void); /* Unblock cpu */ void qemu_cpu_kick(void *env); int qemu_cpu_self(void *env); /* work queue */ struct qemu_work_item { struct qemu_work_item *next; void (*func)(void *data); void *data; int done; }; #ifdef CONFIG_USER_ONLY #define qemu_init_vcpu(env) do { } while (0) #else void qemu_init_vcpu(void *env); #endif typedef struct QEMUIOVector { struct iovec *iov; int niov; int nalloc; size_t size; } QEMUIOVector; void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint); void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip, size_t size); void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size); void qemu_iovec_destroy(QEMUIOVector *qiov); void qemu_iovec_reset(QEMUIOVector *qiov); void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf); void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count); void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count); void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count, size_t skip); /* OS specific functions */ void os_setup_early_signal_handling(void); char *os_find_datadir(const char *argv0); void os_parse_cmd_args(int index, const char *optarg); void os_pidfile_error(void); /* Convert a byte between binary and BCD. */ static inline uint8_t to_bcd(uint8_t val) { return ((val / 10) << 4) | (val % 10); } static inline uint8_t from_bcd(uint8_t val) { return ((val >> 4) * 10) + (val & 0x0f); } /* compute with 96 bit intermediate result: (a*b)/c */ static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) { union { uint64_t ll; struct { #ifdef HOST_WORDS_BIGENDIAN uint32_t high, low; #else uint32_t low, high; #endif } l; } u, res; uint64_t rl, rh; u.ll = a; rl = (uint64_t)u.l.low * (uint64_t)b; rh = (uint64_t)u.l.high * (uint64_t)b; rh += (rl >> 32); res.l.high = rh / c; res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; return res.ll; } #include "module.h" typedef enum DisplayType { DT_DEFAULT, DT_CURSES, DT_SDL, DT_VNC, DT_NOGRAPHIC, } DisplayType; /* * A fixer for timeout value passed to select() on Mac. The issue is that Mac's * version of select() will return EINVAL on timeouts larger than 100000000 * seconds, even though it should have just clamped it. So, for Mac we should * make sure that timeout value is bound to 100000000 seconds before passing it * to select(). */ #if _DARWIN_C_SOURCE #define CLAMP_MAC_TIMEOUT(to) do { if (to > 100000000000LL) to = 100000000000LL; } while (0) #else #define CLAMP_MAC_TIMEOUT(to) ((void)0) #endif // _DARWIN_C_SOURCE #if defined(__clang__) || defined(__llvm__) /* Clang and llvm-gcc don't support global register variable (GRV). Clang issues compile-time error for GRV. llvm-gcc accepts GRV (because its front-end is gcc) but ignores it in the llvm-based back-end. Undefining GRV decl to allow external/qemu and the rest of Android to compile. But emulator built w/o GRV support will not function correctly. User will be greeted with an error message (issued in tcg/tcg.c) when emulator built this way is launched. */ #define SUPPORT_GLOBAL_REGISTER_VARIABLE 0 #define GLOBAL_REGISTER_VARIABLE_DECL #else #define SUPPORT_GLOBAL_REGISTER_VARIABLE 1 #define GLOBAL_REGISTER_VARIABLE_DECL register #endif /* __clang__ || __llvm__ */ #endif