Archipelago » qemu

/* 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];

#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)

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))

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

/* 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 PCIExpressDevice PCIExpressDevice;

typedef struct PCIBridge PCIBridge;

typedef struct PCIEAERMsg PCIEAERMsg;

typedef struct PCIEAERLog PCIEAERLog;

typedef struct PCIEAERErr PCIEAERErr;

typedef struct PCIEPort PCIEPort;

typedef struct PCIESlot PCIESlot;

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;

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);

void qemu_cpu_kick_self(void);

int qemu_cpu_is_self(void *env);

bool all_cpu_threads_idle(void);

/* 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);

void qemu_progress_init(int enabled, float min_skip);

void qemu_progress_end(void);

void qemu_progress_print(float delta, int max);

#define QEMU_FILE_TYPE_BIOS   0

#define QEMU_FILE_TYPE_KEYMAP 1

char *qemu_find_file(int type, const char *name);

/* 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"

#endif