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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 | ||
16 | typedef struct QEMUTimer QEMUTimer; | |
17 | typedef struct QEMUFile QEMUFile; | |
18 | typedef struct QEMUBH QEMUBH; | |
19 | typedef struct DeviceState DeviceState; | |
20 | ||
21 | struct Monitor; | |
22 | typedef struct Monitor Monitor; | |
23 | ||
24 | /* we put basic includes here to avoid repeating them in device drivers */ | |
25 | #include <stdlib.h> | |
26 | #include <stdio.h> | |
27 | #include <stdarg.h> | |
28 | #include <stdbool.h> | |
29 | #include <string.h> | |
30 | #include <strings.h> | |
31 | #include <inttypes.h> | |
32 | #include <limits.h> | |
33 | #include <time.h> | |
34 | #include <ctype.h> | |
35 | #include <errno.h> | |
36 | #include <unistd.h> | |
37 | #include <fcntl.h> | |
38 | #include <sys/stat.h> | |
39 | #include <sys/time.h> | |
40 | #include <assert.h> | |
41 | ||
42 | #ifndef O_LARGEFILE | |
43 | #define O_LARGEFILE 0 | |
44 | #endif | |
45 | #ifndef O_BINARY | |
46 | #define O_BINARY 0 | |
47 | #endif | |
48 | #ifndef MAP_ANONYMOUS | |
49 | #define MAP_ANONYMOUS MAP_ANON | |
50 | #endif | |
51 | #ifndef ENOMEDIUM | |
52 | #define ENOMEDIUM ENODEV | |
53 | #endif | |
54 | #if !defined(ENOTSUP) | |
55 | #define ENOTSUP 4096 | |
56 | #endif | |
57 | #ifndef TIME_MAX | |
58 | #define TIME_MAX LONG_MAX | |
59 | #endif | |
60 | ||
61 | #ifndef CONFIG_IOVEC | |
62 | #define CONFIG_IOVEC | |
63 | struct iovec { | |
64 | void *iov_base; | |
65 | size_t iov_len; | |
66 | }; | |
67 | /* | |
68 | * Use the same value as Linux for now. | |
69 | */ | |
70 | #define IOV_MAX 1024 | |
71 | #else | |
72 | #include <sys/uio.h> | |
73 | #endif | |
74 | ||
75 | #if defined __GNUC__ | |
76 | # if (__GNUC__ < 4) || \ | |
77 | defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) | |
78 | /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ | |
79 | # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) | |
80 | # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) | |
81 | # else | |
82 | /* Use gnu_printf when supported (qemu uses standard format strings). */ | |
83 | # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) | |
84 | # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) | |
85 | # endif | |
86 | #else | |
87 | #define GCC_ATTR /**/ | |
88 | #define GCC_FMT_ATTR(n, m) | |
89 | #endif | |
90 | ||
91 | typedef int (*fprintf_function)(FILE *f, const char *fmt, ...) | |
92 | GCC_FMT_ATTR(2, 3); | |
93 | ||
94 | #ifdef _WIN32 | |
95 | #define fsync _commit | |
96 | #define lseek _lseeki64 | |
97 | int qemu_ftruncate64(int, int64_t); | |
98 | #define ftruncate qemu_ftruncate64 | |
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 | #define PRId64 "I64d" | |
107 | #define PRIx64 "I64x" | |
108 | #define PRIu64 "I64u" | |
109 | #define PRIo64 "I64o" | |
110 | #endif | |
111 | ||
112 | /* FIXME: Remove NEED_CPU_H. */ | |
113 | #ifndef NEED_CPU_H | |
114 | ||
115 | #include <setjmp.h> | |
116 | #include "osdep.h" | |
117 | #include "bswap.h" | |
118 | ||
119 | #else | |
120 | ||
121 | #include "cpu.h" | |
122 | ||
123 | #endif /* !defined(NEED_CPU_H) */ | |
124 | ||
125 | /* bottom halves */ | |
126 | typedef void QEMUBHFunc(void *opaque); | |
127 | ||
128 | void async_context_push(void); | |
129 | void async_context_pop(void); | |
130 | int get_async_context_id(void); | |
131 | ||
132 | QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque); | |
133 | void qemu_bh_schedule(QEMUBH *bh); | |
134 | /* Bottom halfs that are scheduled from a bottom half handler are instantly | |
135 | * invoked. This can create an infinite loop if a bottom half handler | |
136 | * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by | |
137 | * ensuring that the bottom half isn't executed until the next main loop | |
138 | * iteration. | |
139 | */ | |
140 | void qemu_bh_schedule_idle(QEMUBH *bh); | |
141 | void qemu_bh_cancel(QEMUBH *bh); | |
142 | void qemu_bh_delete(QEMUBH *bh); | |
143 | int qemu_bh_poll(void); | |
144 | void qemu_bh_update_timeout(int *timeout); | |
145 | ||
146 | void qemu_get_timedate(struct tm *tm, int offset); | |
147 | int qemu_timedate_diff(struct tm *tm); | |
148 | ||
149 | /* cutils.c */ | |
150 | void pstrcpy(char *buf, int buf_size, const char *str); | |
151 | char *pstrcat(char *buf, int buf_size, const char *s); | |
152 | int strstart(const char *str, const char *val, const char **ptr); | |
153 | int stristart(const char *str, const char *val, const char **ptr); | |
154 | int qemu_strnlen(const char *s, int max_len); | |
155 | time_t mktimegm(struct tm *tm); | |
156 | int qemu_fls(int i); | |
157 | int qemu_fdatasync(int fd); | |
158 | int fcntl_setfl(int fd, int flag); | |
159 | ||
160 | /* | |
161 | * strtosz() suffixes used to specify the default treatment of an | |
162 | * argument passed to strtosz() without an explicit suffix. | |
163 | * These should be defined using upper case characters in the range | |
164 | * A-Z, as strtosz() will use qemu_toupper() on the given argument | |
165 | * prior to comparison. | |
166 | */ | |
167 | #define STRTOSZ_DEFSUFFIX_TB 'T' | |
168 | #define STRTOSZ_DEFSUFFIX_GB 'G' | |
169 | #define STRTOSZ_DEFSUFFIX_MB 'M' | |
170 | #define STRTOSZ_DEFSUFFIX_KB 'K' | |
171 | #define STRTOSZ_DEFSUFFIX_B 'B' | |
172 | int64_t strtosz(const char *nptr, char **end); | |
173 | int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); | |
174 | ||
175 | /* path.c */ | |
176 | void init_paths(const char *prefix); | |
177 | const char *path(const char *pathname); | |
178 | ||
179 | #define qemu_isalnum(c) isalnum((unsigned char)(c)) | |
180 | #define qemu_isalpha(c) isalpha((unsigned char)(c)) | |
181 | #define qemu_iscntrl(c) iscntrl((unsigned char)(c)) | |
182 | #define qemu_isdigit(c) isdigit((unsigned char)(c)) | |
183 | #define qemu_isgraph(c) isgraph((unsigned char)(c)) | |
184 | #define qemu_islower(c) islower((unsigned char)(c)) | |
185 | #define qemu_isprint(c) isprint((unsigned char)(c)) | |
186 | #define qemu_ispunct(c) ispunct((unsigned char)(c)) | |
187 | #define qemu_isspace(c) isspace((unsigned char)(c)) | |
188 | #define qemu_isupper(c) isupper((unsigned char)(c)) | |
189 | #define qemu_isxdigit(c) isxdigit((unsigned char)(c)) | |
190 | #define qemu_tolower(c) tolower((unsigned char)(c)) | |
191 | #define qemu_toupper(c) toupper((unsigned char)(c)) | |
192 | #define qemu_isascii(c) isascii((unsigned char)(c)) | |
193 | #define qemu_toascii(c) toascii((unsigned char)(c)) | |
194 | ||
195 | #ifdef _WIN32 | |
196 | /* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */ | |
197 | int ffs(int i); | |
198 | #endif | |
199 | ||
200 | void *qemu_oom_check(void *ptr); | |
201 | void *qemu_malloc(size_t size); | |
202 | void *qemu_realloc(void *ptr, size_t size); | |
203 | void *qemu_mallocz(size_t size); | |
204 | void qemu_free(void *ptr); | |
205 | char *qemu_strdup(const char *str); | |
206 | char *qemu_strndup(const char *str, size_t size); | |
207 | ||
208 | void qemu_mutex_lock_iothread(void); | |
209 | void qemu_mutex_unlock_iothread(void); | |
210 | ||
211 | int qemu_open(const char *name, int flags, ...); | |
212 | ssize_t qemu_write_full(int fd, const void *buf, size_t count) | |
213 | QEMU_WARN_UNUSED_RESULT; | |
214 | void qemu_set_cloexec(int fd); | |
215 | ||
216 | #ifndef _WIN32 | |
217 | int qemu_add_child_watch(pid_t pid); | |
218 | int qemu_eventfd(int pipefd[2]); | |
219 | int qemu_pipe(int pipefd[2]); | |
220 | #endif | |
221 | ||
222 | /* Error handling. */ | |
223 | ||
224 | void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2); | |
225 | ||
226 | /* IO callbacks. */ | |
227 | typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size); | |
228 | typedef int IOCanReadHandler(void *opaque); | |
229 | typedef void IOHandler(void *opaque); | |
230 | ||
231 | void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds); | |
232 | void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int rc); | |
233 | ||
234 | struct ParallelIOArg { | |
235 | void *buffer; | |
236 | int count; | |
237 | }; | |
238 | ||
239 | typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size); | |
240 | ||
241 | /* A load of opaque types so that device init declarations don't have to | |
242 | pull in all the real definitions. */ | |
243 | typedef struct NICInfo NICInfo; | |
244 | typedef struct HCIInfo HCIInfo; | |
245 | typedef struct AudioState AudioState; | |
246 | typedef struct BlockDriverState BlockDriverState; | |
247 | typedef struct DriveInfo DriveInfo; | |
248 | typedef struct DisplayState DisplayState; | |
249 | typedef struct DisplayChangeListener DisplayChangeListener; | |
250 | typedef struct DisplaySurface DisplaySurface; | |
251 | typedef struct DisplayAllocator DisplayAllocator; | |
252 | typedef struct PixelFormat PixelFormat; | |
253 | typedef struct TextConsole TextConsole; | |
254 | typedef TextConsole QEMUConsole; | |
255 | typedef struct CharDriverState CharDriverState; | |
256 | typedef struct MACAddr MACAddr; | |
257 | typedef struct VLANState VLANState; | |
258 | typedef struct VLANClientState VLANClientState; | |
259 | typedef struct i2c_bus i2c_bus; | |
260 | typedef struct i2c_slave i2c_slave; | |
261 | typedef struct SMBusDevice SMBusDevice; | |
262 | typedef struct PCIHostState PCIHostState; | |
263 | typedef struct PCIExpressHost PCIExpressHost; | |
264 | typedef struct PCIBus PCIBus; | |
265 | typedef struct PCIDevice PCIDevice; | |
266 | typedef struct PCIExpressDevice PCIExpressDevice; | |
267 | typedef struct PCIBridge PCIBridge; | |
268 | typedef struct PCIEAERMsg PCIEAERMsg; | |
269 | typedef struct PCIEAERLog PCIEAERLog; | |
270 | typedef struct PCIEAERErr PCIEAERErr; | |
271 | typedef struct PCIEPort PCIEPort; | |
272 | typedef struct PCIESlot PCIESlot; | |
273 | typedef struct SerialState SerialState; | |
274 | typedef struct IRQState *qemu_irq; | |
275 | typedef struct PCMCIACardState PCMCIACardState; | |
276 | typedef struct MouseTransformInfo MouseTransformInfo; | |
277 | typedef struct uWireSlave uWireSlave; | |
278 | typedef struct I2SCodec I2SCodec; | |
279 | typedef struct SSIBus SSIBus; | |
280 | typedef struct EventNotifier EventNotifier; | |
281 | typedef struct VirtIODevice VirtIODevice; | |
282 | ||
283 | typedef uint64_t pcibus_t; | |
284 | ||
285 | void cpu_exec_init_all(unsigned long tb_size); | |
286 | ||
287 | /* CPU save/load. */ | |
288 | void cpu_save(QEMUFile *f, void *opaque); | |
289 | int cpu_load(QEMUFile *f, void *opaque, int version_id); | |
290 | ||
291 | /* Force QEMU to stop what it's doing and service IO */ | |
292 | void qemu_service_io(void); | |
293 | ||
294 | /* Force QEMU to process pending events */ | |
295 | void qemu_notify_event(void); | |
296 | ||
297 | /* Unblock cpu */ | |
298 | void qemu_cpu_kick(void *env); | |
299 | void qemu_cpu_kick_self(void); | |
300 | int qemu_cpu_is_self(void *env); | |
301 | ||
302 | /* work queue */ | |
303 | struct qemu_work_item { | |
304 | struct qemu_work_item *next; | |
305 | void (*func)(void *data); | |
306 | void *data; | |
307 | int done; | |
308 | }; | |
309 | ||
310 | #ifdef CONFIG_USER_ONLY | |
311 | #define qemu_init_vcpu(env) do { } while (0) | |
312 | #else | |
313 | void qemu_init_vcpu(void *env); | |
314 | #endif | |
315 | ||
316 | typedef struct QEMUIOVector { | |
317 | struct iovec *iov; | |
318 | int niov; | |
319 | int nalloc; | |
320 | size_t size; | |
321 | } QEMUIOVector; | |
322 | ||
323 | void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint); | |
324 | void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); | |
325 | void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); | |
326 | void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip, | |
327 | size_t size); | |
328 | void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size); | |
329 | void qemu_iovec_destroy(QEMUIOVector *qiov); | |
330 | void qemu_iovec_reset(QEMUIOVector *qiov); | |
331 | void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf); | |
332 | void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count); | |
333 | void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count); | |
334 | void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count, | |
335 | size_t skip); | |
336 | ||
337 | /* Convert a byte between binary and BCD. */ | |
338 | static inline uint8_t to_bcd(uint8_t val) | |
339 | { | |
340 | return ((val / 10) << 4) | (val % 10); | |
341 | } | |
342 | ||
343 | static inline uint8_t from_bcd(uint8_t val) | |
344 | { | |
345 | return ((val >> 4) * 10) + (val & 0x0f); | |
346 | } | |
347 | ||
348 | /* compute with 96 bit intermediate result: (a*b)/c */ | |
349 | static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) | |
350 | { | |
351 | union { | |
352 | uint64_t ll; | |
353 | struct { | |
354 | #ifdef HOST_WORDS_BIGENDIAN | |
355 | uint32_t high, low; | |
356 | #else | |
357 | uint32_t low, high; | |
358 | #endif | |
359 | } l; | |
360 | } u, res; | |
361 | uint64_t rl, rh; | |
362 | ||
363 | u.ll = a; | |
364 | rl = (uint64_t)u.l.low * (uint64_t)b; | |
365 | rh = (uint64_t)u.l.high * (uint64_t)b; | |
366 | rh += (rl >> 32); | |
367 | res.l.high = rh / c; | |
368 | res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; | |
369 | return res.ll; | |
370 | } | |
371 | ||
372 | #include "module.h" | |
373 | ||
374 | #endif |