File:  [Qemu by Fabrice Bellard] / qemu / qemu-common.h
Revision 1.1.1.4 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:34:20 2018 UTC (2 years, 4 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0122, qemu0121, qemu0120, HEAD
qemu 0.12.0

    1: /* Common header file that is included by all of qemu.  */
    2: #ifndef QEMU_COMMON_H
    3: #define QEMU_COMMON_H
    4: 
    5: #define QEMU_NORETURN __attribute__ ((__noreturn__))
    6: #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
    7: #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
    8: #else
    9: #define QEMU_WARN_UNUSED_RESULT
   10: #endif
   11: 
   12: /* Hack around the mess dyngen-exec.h causes: We need QEMU_NORETURN in files that
   13:    cannot include the following headers without conflicts. This condition has
   14:    to be removed once dyngen is gone. */
   15: #ifndef __DYNGEN_EXEC_H__
   16: 
   17: /* we put basic includes here to avoid repeating them in device drivers */
   18: #include <stdlib.h>
   19: #include <stdio.h>
   20: #include <stdarg.h>
   21: #include <string.h>
   22: #include <strings.h>
   23: #include <inttypes.h>
   24: #include <limits.h>
   25: #include <time.h>
   26: #include <ctype.h>
   27: #include <errno.h>
   28: #include <unistd.h>
   29: #include <fcntl.h>
   30: #include <sys/stat.h>
   31: #include <assert.h>
   32: #include "config-host.h"
   33: 
   34: #ifndef O_LARGEFILE
   35: #define O_LARGEFILE 0
   36: #endif
   37: #ifndef O_BINARY
   38: #define O_BINARY 0
   39: #endif
   40: #ifndef MAP_ANONYMOUS
   41: #define MAP_ANONYMOUS MAP_ANON
   42: #endif
   43: #ifndef ENOMEDIUM
   44: #define ENOMEDIUM ENODEV
   45: #endif
   46: #if !defined(ENOTSUP)
   47: #define ENOTSUP 4096
   48: #endif
   49: 
   50: #ifndef CONFIG_IOVEC
   51: #define CONFIG_IOVEC
   52: struct iovec {
   53:     void *iov_base;
   54:     size_t iov_len;
   55: };
   56: #else
   57: #include <sys/uio.h>
   58: #endif
   59: 
   60: #ifdef _WIN32
   61: #define fsync _commit
   62: #define lseek _lseeki64
   63: extern int qemu_ftruncate64(int, int64_t);
   64: #define ftruncate qemu_ftruncate64
   65: 
   66: static inline char *realpath(const char *path, char *resolved_path)
   67: {
   68:     _fullpath(resolved_path, path, _MAX_PATH);
   69:     return resolved_path;
   70: }
   71: 
   72: #define PRId64 "I64d"
   73: #define PRIx64 "I64x"
   74: #define PRIu64 "I64u"
   75: #define PRIo64 "I64o"
   76: #endif
   77: 
   78: /* FIXME: Remove NEED_CPU_H.  */
   79: #ifndef NEED_CPU_H
   80: 
   81: #include <setjmp.h>
   82: #include "osdep.h"
   83: #include "bswap.h"
   84: 
   85: #else
   86: 
   87: #include "cpu.h"
   88: 
   89: #endif /* !defined(NEED_CPU_H) */
   90: 
   91: /* bottom halves */
   92: typedef struct QEMUBH QEMUBH;
   93: 
   94: typedef void QEMUBHFunc(void *opaque);
   95: 
   96: void async_context_push(void);
   97: void async_context_pop(void);
   98: int get_async_context_id(void);
   99: 
  100: QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
  101: void qemu_bh_schedule(QEMUBH *bh);
  102: /* Bottom halfs that are scheduled from a bottom half handler are instantly
  103:  * invoked.  This can create an infinite loop if a bottom half handler
  104:  * schedules itself.  qemu_bh_schedule_idle() avoids this infinite loop by
  105:  * ensuring that the bottom half isn't executed until the next main loop
  106:  * iteration.
  107:  */
  108: void qemu_bh_schedule_idle(QEMUBH *bh);
  109: void qemu_bh_cancel(QEMUBH *bh);
  110: void qemu_bh_delete(QEMUBH *bh);
  111: int qemu_bh_poll(void);
  112: void qemu_bh_update_timeout(int *timeout);
  113: 
  114: uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c);
  115: 
  116: void qemu_get_timedate(struct tm *tm, int offset);
  117: int qemu_timedate_diff(struct tm *tm);
  118: 
  119: /* cutils.c */
  120: void pstrcpy(char *buf, int buf_size, const char *str);
  121: char *pstrcat(char *buf, int buf_size, const char *s);
  122: int strstart(const char *str, const char *val, const char **ptr);
  123: int stristart(const char *str, const char *val, const char **ptr);
  124: int qemu_strnlen(const char *s, int max_len);
  125: time_t mktimegm(struct tm *tm);
  126: int qemu_fls(int i);
  127: int qemu_fdatasync(int fd);
  128: 
  129: /* path.c */
  130: void init_paths(const char *prefix);
  131: const char *path(const char *pathname);
  132: 
  133: #define qemu_isalnum(c)		isalnum((unsigned char)(c))
  134: #define qemu_isalpha(c)		isalpha((unsigned char)(c))
  135: #define qemu_iscntrl(c)		iscntrl((unsigned char)(c))
  136: #define qemu_isdigit(c)		isdigit((unsigned char)(c))
  137: #define qemu_isgraph(c)		isgraph((unsigned char)(c))
  138: #define qemu_islower(c)		islower((unsigned char)(c))
  139: #define qemu_isprint(c)		isprint((unsigned char)(c))
  140: #define qemu_ispunct(c)		ispunct((unsigned char)(c))
  141: #define qemu_isspace(c)		isspace((unsigned char)(c))
  142: #define qemu_isupper(c)		isupper((unsigned char)(c))
  143: #define qemu_isxdigit(c)	isxdigit((unsigned char)(c))
  144: #define qemu_tolower(c)		tolower((unsigned char)(c))
  145: #define qemu_toupper(c)		toupper((unsigned char)(c))
  146: #define qemu_isascii(c)		isascii((unsigned char)(c))
  147: #define qemu_toascii(c)		toascii((unsigned char)(c))
  148: 
  149: void *qemu_malloc(size_t size);
  150: void *qemu_realloc(void *ptr, size_t size);
  151: void *qemu_mallocz(size_t size);
  152: void qemu_free(void *ptr);
  153: char *qemu_strdup(const char *str);
  154: char *qemu_strndup(const char *str, size_t size);
  155: 
  156: void *get_mmap_addr(unsigned long size);
  157: 
  158: 
  159: void qemu_mutex_lock_iothread(void);
  160: void qemu_mutex_unlock_iothread(void);
  161: 
  162: int qemu_open(const char *name, int flags, ...);
  163: void qemu_set_cloexec(int fd);
  164: 
  165: #ifndef _WIN32
  166: int qemu_pipe(int pipefd[2]);
  167: #endif
  168: 
  169: /* Error handling.  */
  170: 
  171: void QEMU_NORETURN hw_error(const char *fmt, ...)
  172:     __attribute__ ((__format__ (__printf__, 1, 2)));
  173: 
  174: /* IO callbacks.  */
  175: typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
  176: typedef int IOCanRWHandler(void *opaque);
  177: typedef void IOHandler(void *opaque);
  178: 
  179: struct ParallelIOArg {
  180:     void *buffer;
  181:     int count;
  182: };
  183: 
  184: typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
  185: 
  186: /* A load of opaque types so that device init declarations don't have to
  187:    pull in all the real definitions.  */
  188: typedef struct NICInfo NICInfo;
  189: typedef struct HCIInfo HCIInfo;
  190: typedef struct AudioState AudioState;
  191: typedef struct BlockDriverState BlockDriverState;
  192: typedef struct DisplayState DisplayState;
  193: typedef struct DisplayChangeListener DisplayChangeListener;
  194: typedef struct DisplaySurface DisplaySurface;
  195: typedef struct DisplayAllocator DisplayAllocator;
  196: typedef struct PixelFormat PixelFormat;
  197: typedef struct TextConsole TextConsole;
  198: typedef TextConsole QEMUConsole;
  199: typedef struct CharDriverState CharDriverState;
  200: typedef struct MACAddr MACAddr;
  201: typedef struct VLANState VLANState;
  202: typedef struct VLANClientState VLANClientState;
  203: typedef struct QEMUFile QEMUFile;
  204: typedef struct i2c_bus i2c_bus;
  205: typedef struct i2c_slave i2c_slave;
  206: typedef struct SMBusDevice SMBusDevice;
  207: typedef struct QEMUTimer QEMUTimer;
  208: typedef struct PCIHostState PCIHostState;
  209: typedef struct PCIExpressHost PCIExpressHost;
  210: typedef struct PCIBus PCIBus;
  211: typedef struct PCIDevice PCIDevice;
  212: typedef struct SerialState SerialState;
  213: typedef struct IRQState *qemu_irq;
  214: typedef struct PCMCIACardState PCMCIACardState;
  215: typedef struct MouseTransformInfo MouseTransformInfo;
  216: typedef struct uWireSlave uWireSlave;
  217: typedef struct I2SCodec I2SCodec;
  218: typedef struct DeviceState DeviceState;
  219: typedef struct SSIBus SSIBus;
  220: 
  221: /* CPU save/load.  */
  222: void cpu_save(QEMUFile *f, void *opaque);
  223: int cpu_load(QEMUFile *f, void *opaque, int version_id);
  224: 
  225: /* Force QEMU to stop what it's doing and service IO */
  226: void qemu_service_io(void);
  227: 
  228: /* Force QEMU to process pending events */
  229: void qemu_notify_event(void);
  230: 
  231: /* Unblock cpu */
  232: void qemu_cpu_kick(void *env);
  233: int qemu_cpu_self(void *env);
  234: 
  235: #ifdef CONFIG_USER_ONLY
  236: #define qemu_init_vcpu(env) do { } while (0)
  237: #else
  238: void qemu_init_vcpu(void *env);
  239: #endif
  240: 
  241: typedef struct QEMUIOVector {
  242:     struct iovec *iov;
  243:     int niov;
  244:     int nalloc;
  245:     size_t size;
  246: } QEMUIOVector;
  247: 
  248: void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
  249: void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
  250: void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
  251: void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
  252: void qemu_iovec_destroy(QEMUIOVector *qiov);
  253: void qemu_iovec_reset(QEMUIOVector *qiov);
  254: void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
  255: void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
  256: 
  257: struct Monitor;
  258: typedef struct Monitor Monitor;
  259: 
  260: /* Convert a byte between binary and BCD.  */
  261: static inline uint8_t to_bcd(uint8_t val)
  262: {
  263:     return ((val / 10) << 4) | (val % 10);
  264: }
  265: 
  266: static inline uint8_t from_bcd(uint8_t val)
  267: {
  268:     return ((val >> 4) * 10) + (val & 0x0f);
  269: }
  270: 
  271: #include "module.h"
  272: 
  273: #endif /* dyngen-exec.h hack */
  274: 
  275: #endif

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