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1 | /* Common header file that is included by all of qemu. */ | |
2 | #ifndef QEMU_COMMON_H | |
3 | #define QEMU_COMMON_H | |
4 | ||
5 | #include "config-host.h" | |
6 | ||
7 | #define QEMU_NORETURN __attribute__ ((__noreturn__)) | |
8 | #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT | |
9 | #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) | |
10 | #else | |
11 | #define QEMU_WARN_UNUSED_RESULT | |
12 | #endif | |
13 | ||
14 | #define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1]; | |
15 | #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) | |
16 | ||
17 | typedef struct QEMUTimer QEMUTimer; | |
18 | typedef struct QEMUFile QEMUFile; | |
19 | typedef struct QEMUBH QEMUBH; | |
20 | typedef struct DeviceState DeviceState; | |
21 | ||
22 | struct Monitor; | |
23 | typedef struct Monitor Monitor; | |
24 | ||
25 | /* we put basic includes here to avoid repeating them in device drivers */ | |
26 | #include <stdlib.h> | |
27 | #include <stdio.h> | |
28 | #include <stdarg.h> | |
29 | #include <stdbool.h> | |
30 | #include <string.h> | |
31 | #include <strings.h> | |
32 | #include <inttypes.h> | |
33 | #include <limits.h> | |
34 | #include <time.h> | |
35 | #include <ctype.h> | |
36 | #include <errno.h> | |
37 | #include <unistd.h> | |
38 | #include <fcntl.h> | |
39 | #include <sys/stat.h> | |
40 | #include <sys/time.h> | |
41 | #include <assert.h> | |
42 | #include <signal.h> | |
43 | ||
44 | #ifdef _WIN32 | |
45 | #include "qemu-os-win32.h" | |
46 | #endif | |
47 | ||
48 | #ifdef CONFIG_POSIX | |
49 | #include "qemu-os-posix.h" | |
50 | #endif | |
51 | ||
52 | #ifndef O_LARGEFILE | |
53 | #define O_LARGEFILE 0 | |
54 | #endif | |
55 | #ifndef O_BINARY | |
56 | #define O_BINARY 0 | |
57 | #endif | |
58 | #ifndef MAP_ANONYMOUS | |
59 | #define MAP_ANONYMOUS MAP_ANON | |
60 | #endif | |
61 | #ifndef ENOMEDIUM | |
62 | #define ENOMEDIUM ENODEV | |
63 | #endif | |
64 | #if !defined(ENOTSUP) | |
65 | #define ENOTSUP 4096 | |
66 | #endif | |
67 | #ifndef TIME_MAX | |
68 | #define TIME_MAX LONG_MAX | |
69 | #endif | |
70 | ||
71 | #ifndef CONFIG_IOVEC | |
72 | #define CONFIG_IOVEC | |
73 | struct iovec { | |
74 | void *iov_base; | |
75 | size_t iov_len; | |
76 | }; | |
77 | /* | |
78 | * Use the same value as Linux for now. | |
79 | */ | |
80 | #define IOV_MAX 1024 | |
81 | #else | |
82 | #include <sys/uio.h> | |
83 | #endif | |
84 | ||
85 | #if defined __GNUC__ | |
86 | # if (__GNUC__ < 4) || \ | |
87 | defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) | |
88 | /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ | |
89 | # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) | |
90 | # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) | |
91 | # else | |
92 | /* Use gnu_printf when supported (qemu uses standard format strings). */ | |
93 | # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) | |
94 | # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) | |
95 | # endif | |
96 | #else | |
97 | #define GCC_ATTR /**/ | |
98 | #define GCC_FMT_ATTR(n, m) | |
99 | #endif | |
100 | ||
101 | typedef int (*fprintf_function)(FILE *f, const char *fmt, ...) | |
102 | GCC_FMT_ATTR(2, 3); | |
103 | ||
104 | #ifdef _WIN32 | |
105 | #define fsync _commit | |
106 | #define lseek _lseeki64 | |
107 | int qemu_ftruncate64(int, int64_t); | |
108 | #define ftruncate qemu_ftruncate64 | |
109 | ||
110 | static inline char *realpath(const char *path, char *resolved_path) | |
111 | { | |
112 | _fullpath(resolved_path, path, _MAX_PATH); | |
113 | return resolved_path; | |
114 | } | |
115 | #endif | |
116 | ||
117 | /* FIXME: Remove NEED_CPU_H. */ | |
118 | #ifndef NEED_CPU_H | |
119 | ||
120 | #include <setjmp.h> | |
121 | #include "osdep.h" | |
122 | #include "bswap.h" | |
123 | ||
124 | #else | |
125 | ||
126 | #include "cpu.h" | |
127 | ||
128 | #endif /* !defined(NEED_CPU_H) */ | |
129 | ||
130 | /* main function, renamed */ | |
131 | #if defined(CONFIG_COCOA) | |
132 | int qemu_main(int argc, char **argv, char **envp); | |
133 | #endif | |
134 | ||
135 | /* bottom halves */ | |
136 | typedef void QEMUBHFunc(void *opaque); | |
137 | ||
138 | void async_context_push(void); | |
139 | void async_context_pop(void); | |
140 | int get_async_context_id(void); | |
141 | ||
142 | QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque); | |
143 | void qemu_bh_schedule(QEMUBH *bh); | |
144 | /* Bottom halfs that are scheduled from a bottom half handler are instantly | |
145 | * invoked. This can create an infinite loop if a bottom half handler | |
146 | * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by | |
147 | * ensuring that the bottom half isn't executed until the next main loop | |
148 | * iteration. | |
149 | */ | |
150 | void qemu_bh_schedule_idle(QEMUBH *bh); | |
151 | void qemu_bh_cancel(QEMUBH *bh); | |
152 | void qemu_bh_delete(QEMUBH *bh); | |
153 | int qemu_bh_poll(void); | |
154 | void qemu_bh_update_timeout(int *timeout); | |
155 | ||
156 | void qemu_get_timedate(struct tm *tm, int offset); | |
157 | int qemu_timedate_diff(struct tm *tm); | |
158 | ||
159 | /* cutils.c */ | |
160 | void pstrcpy(char *buf, int buf_size, const char *str); | |
161 | char *pstrcat(char *buf, int buf_size, const char *s); | |
162 | int strstart(const char *str, const char *val, const char **ptr); | |
163 | int stristart(const char *str, const char *val, const char **ptr); | |
164 | int qemu_strnlen(const char *s, int max_len); | |
165 | time_t mktimegm(struct tm *tm); | |
166 | int qemu_fls(int i); | |
167 | int qemu_fdatasync(int fd); | |
168 | int fcntl_setfl(int fd, int flag); | |
169 | ||
170 | /* | |
171 | * strtosz() suffixes used to specify the default treatment of an | |
172 | * argument passed to strtosz() without an explicit suffix. | |
173 | * These should be defined using upper case characters in the range | |
174 | * A-Z, as strtosz() will use qemu_toupper() on the given argument | |
175 | * prior to comparison. | |
176 | */ | |
177 | #define STRTOSZ_DEFSUFFIX_TB 'T' | |
178 | #define STRTOSZ_DEFSUFFIX_GB 'G' | |
179 | #define STRTOSZ_DEFSUFFIX_MB 'M' | |
180 | #define STRTOSZ_DEFSUFFIX_KB 'K' | |
181 | #define STRTOSZ_DEFSUFFIX_B 'B' | |
182 | int64_t strtosz(const char *nptr, char **end); | |
183 | int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); | |
184 | ||
185 | /* path.c */ | |
186 | void init_paths(const char *prefix); | |
187 | const char *path(const char *pathname); | |
188 | ||
189 | #define qemu_isalnum(c) isalnum((unsigned char)(c)) | |
190 | #define qemu_isalpha(c) isalpha((unsigned char)(c)) | |
191 | #define qemu_iscntrl(c) iscntrl((unsigned char)(c)) | |
192 | #define qemu_isdigit(c) isdigit((unsigned char)(c)) | |
193 | #define qemu_isgraph(c) isgraph((unsigned char)(c)) | |
194 | #define qemu_islower(c) islower((unsigned char)(c)) | |
195 | #define qemu_isprint(c) isprint((unsigned char)(c)) | |
196 | #define qemu_ispunct(c) ispunct((unsigned char)(c)) | |
197 | #define qemu_isspace(c) isspace((unsigned char)(c)) | |
198 | #define qemu_isupper(c) isupper((unsigned char)(c)) | |
199 | #define qemu_isxdigit(c) isxdigit((unsigned char)(c)) | |
200 | #define qemu_tolower(c) tolower((unsigned char)(c)) | |
201 | #define qemu_toupper(c) toupper((unsigned char)(c)) | |
202 | #define qemu_isascii(c) isascii((unsigned char)(c)) | |
203 | #define qemu_toascii(c) toascii((unsigned char)(c)) | |
204 | ||
205 | void *qemu_oom_check(void *ptr); | |
206 | void *qemu_malloc(size_t size); | |
207 | void *qemu_realloc(void *ptr, size_t size); | |
208 | void *qemu_mallocz(size_t size); | |
209 | void qemu_free(void *ptr); | |
210 | char *qemu_strdup(const char *str); | |
211 | char *qemu_strndup(const char *str, size_t size); | |
212 | ||
213 | void qemu_mutex_lock_iothread(void); | |
214 | void qemu_mutex_unlock_iothread(void); | |
215 | ||
216 | int qemu_open(const char *name, int flags, ...); | |
217 | ssize_t qemu_write_full(int fd, const void *buf, size_t count) | |
218 | QEMU_WARN_UNUSED_RESULT; | |
219 | void qemu_set_cloexec(int fd); | |
220 | ||
221 | #ifndef _WIN32 | |
222 | int qemu_add_child_watch(pid_t pid); | |
223 | int qemu_eventfd(int pipefd[2]); | |
224 | int qemu_pipe(int pipefd[2]); | |
225 | #endif | |
226 | ||
227 | /* Error handling. */ | |
228 | ||
229 | void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2); | |
230 | ||
231 | /* IO callbacks. */ | |
232 | typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size); | |
233 | typedef int IOCanReadHandler(void *opaque); | |
234 | typedef void IOHandler(void *opaque); | |
235 | ||
236 | void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds); | |
237 | void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int rc); | |
238 | ||
239 | struct ParallelIOArg { | |
240 | void *buffer; | |
241 | int count; | |
242 | }; | |
243 | ||
244 | typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size); | |
245 | ||
246 | /* A load of opaque types so that device init declarations don't have to | |
247 | pull in all the real definitions. */ | |
248 | typedef struct NICInfo NICInfo; | |
249 | typedef struct HCIInfo HCIInfo; | |
250 | typedef struct AudioState AudioState; | |
251 | typedef struct BlockDriverState BlockDriverState; | |
252 | typedef struct DriveInfo DriveInfo; | |
253 | typedef struct DisplayState DisplayState; | |
254 | typedef struct DisplayChangeListener DisplayChangeListener; | |
255 | typedef struct DisplaySurface DisplaySurface; | |
256 | typedef struct DisplayAllocator DisplayAllocator; | |
257 | typedef struct PixelFormat PixelFormat; | |
258 | typedef struct TextConsole TextConsole; | |
259 | typedef TextConsole QEMUConsole; | |
260 | typedef struct CharDriverState CharDriverState; | |
261 | typedef struct MACAddr MACAddr; | |
262 | typedef struct VLANState VLANState; | |
263 | typedef struct VLANClientState VLANClientState; | |
264 | typedef struct i2c_bus i2c_bus; | |
265 | typedef struct i2c_slave i2c_slave; | |
266 | typedef struct SMBusDevice SMBusDevice; | |
267 | typedef struct PCIHostState PCIHostState; | |
268 | typedef struct PCIExpressHost PCIExpressHost; | |
269 | typedef struct PCIBus PCIBus; | |
270 | typedef struct PCIDevice PCIDevice; | |
271 | typedef struct PCIExpressDevice PCIExpressDevice; | |
272 | typedef struct PCIBridge PCIBridge; | |
273 | typedef struct PCIEAERMsg PCIEAERMsg; | |
274 | typedef struct PCIEAERLog PCIEAERLog; | |
275 | typedef struct PCIEAERErr PCIEAERErr; | |
276 | typedef struct PCIEPort PCIEPort; | |
277 | typedef struct PCIESlot PCIESlot; | |
278 | typedef struct SerialState SerialState; | |
279 | typedef struct IRQState *qemu_irq; | |
280 | typedef struct PCMCIACardState PCMCIACardState; | |
281 | typedef struct MouseTransformInfo MouseTransformInfo; | |
282 | typedef struct uWireSlave uWireSlave; | |
283 | typedef struct I2SCodec I2SCodec; | |
284 | typedef struct SSIBus SSIBus; | |
285 | typedef struct EventNotifier EventNotifier; | |
286 | typedef struct VirtIODevice VirtIODevice; | |
287 | ||
288 | typedef uint64_t pcibus_t; | |
289 | ||
290 | void cpu_exec_init_all(unsigned long tb_size); | |
291 | ||
292 | /* CPU save/load. */ | |
293 | void cpu_save(QEMUFile *f, void *opaque); | |
294 | int cpu_load(QEMUFile *f, void *opaque, int version_id); | |
295 | ||
296 | /* Force QEMU to stop what it's doing and service IO */ | |
297 | void qemu_service_io(void); | |
298 | ||
299 | /* Force QEMU to process pending events */ | |
300 | void qemu_notify_event(void); | |
301 | ||
302 | /* Unblock cpu */ | |
303 | void qemu_cpu_kick(void *env); | |
304 | void qemu_cpu_kick_self(void); | |
305 | int qemu_cpu_is_self(void *env); | |
306 | bool all_cpu_threads_idle(void); | |
307 | ||
308 | /* work queue */ | |
309 | struct qemu_work_item { | |
310 | struct qemu_work_item *next; | |
311 | void (*func)(void *data); | |
312 | void *data; | |
313 | int done; | |
314 | }; | |
315 | ||
316 | #ifdef CONFIG_USER_ONLY | |
317 | #define qemu_init_vcpu(env) do { } while (0) | |
318 | #else | |
319 | void qemu_init_vcpu(void *env); | |
320 | #endif | |
321 | ||
322 | typedef struct QEMUIOVector { | |
323 | struct iovec *iov; | |
324 | int niov; | |
325 | int nalloc; | |
326 | size_t size; | |
327 | } QEMUIOVector; | |
328 | ||
329 | void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint); | |
330 | void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); | |
331 | void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); | |
332 | void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip, | |
333 | size_t size); | |
334 | void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size); | |
335 | void qemu_iovec_destroy(QEMUIOVector *qiov); | |
336 | void qemu_iovec_reset(QEMUIOVector *qiov); | |
337 | void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf); | |
338 | void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count); | |
339 | void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count); | |
340 | void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count, | |
341 | size_t skip); | |
342 | ||
343 | void qemu_progress_init(int enabled, float min_skip); | |
344 | void qemu_progress_end(void); | |
345 | void qemu_progress_print(float delta, int max); | |
346 | ||
347 | #define QEMU_FILE_TYPE_BIOS 0 | |
348 | #define QEMU_FILE_TYPE_KEYMAP 1 | |
349 | char *qemu_find_file(int type, const char *name); | |
350 | ||
351 | /* OS specific functions */ | |
352 | void os_setup_early_signal_handling(void); | |
353 | char *os_find_datadir(const char *argv0); | |
354 | void os_parse_cmd_args(int index, const char *optarg); | |
355 | void os_pidfile_error(void); | |
356 | ||
357 | /* Convert a byte between binary and BCD. */ | |
358 | static inline uint8_t to_bcd(uint8_t val) | |
359 | { | |
360 | return ((val / 10) << 4) | (val % 10); | |
361 | } | |
362 | ||
363 | static inline uint8_t from_bcd(uint8_t val) | |
364 | { | |
365 | return ((val >> 4) * 10) + (val & 0x0f); | |
366 | } | |
367 | ||
368 | /* compute with 96 bit intermediate result: (a*b)/c */ | |
369 | static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) | |
370 | { | |
371 | union { | |
372 | uint64_t ll; | |
373 | struct { | |
374 | #ifdef HOST_WORDS_BIGENDIAN | |
375 | uint32_t high, low; | |
376 | #else | |
377 | uint32_t low, high; | |
378 | #endif | |
379 | } l; | |
380 | } u, res; | |
381 | uint64_t rl, rh; | |
382 | ||
383 | u.ll = a; | |
384 | rl = (uint64_t)u.l.low * (uint64_t)b; | |
385 | rh = (uint64_t)u.l.high * (uint64_t)b; | |
386 | rh += (rl >> 32); | |
387 | res.l.high = rh / c; | |
388 | res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; | |
389 | return res.ll; | |
390 | } | |
391 | ||
392 | #include "module.h" | |
393 | ||
394 | #endif |