rt smart 系统调用函数功能缺少？

发布于 2022-02-27 12:49:06 浏览：905 订阅该版

rt smart的系统调用提供了如下函数的系统调用。
```c
const static void* func_table[] =
{
    (void *)sys_exit,            /* 01 */
    (void *)sys_read,
    (void *)sys_write,
    (void *)sys_lseek,
    (void *)sys_open,            /* 05 */
    (void *)sys_close,
    (void *)sys_ioctl,
    (void *)sys_fstat,
    (void *)sys_poll,
    (void *)sys_nanosleep,       /* 10 */
    (void *)sys_gettimeofday,
    (void *)sys_settimeofday,
    (void *)sys_exec,
    (void *)sys_kill,
    (void *)sys_getpid,          /* 15 */
    (void *)sys_getpriority,
    (void *)sys_setpriority,
    (void *)sys_sem_create,
    (void *)sys_sem_delete,
    (void *)sys_sem_take,        /* 20 */
    (void *)sys_sem_release,
    (void *)sys_mutex_create,
    (void *)sys_mutex_delete,
    (void *)sys_mutex_take,
    (void *)sys_mutex_release,   /* 25 */
    (void *)sys_event_create,
    (void *)sys_event_delete,
    (void *)sys_event_send,
    (void *)sys_event_recv,
    (void *)sys_mb_create,       /* 30 */
    (void *)sys_mb_delete,
    (void *)sys_mb_send,
    (void *)sys_mb_send_wait,
    (void *)sys_mb_recv,
    (void *)sys_mq_create,       /* 35 */
    (void *)sys_mq_delete,
    (void *)sys_mq_send,
    (void *)sys_mq_urgent,
    (void *)sys_mq_recv,
    (void *)sys_thread_create,   /* 40 */
    (void *)sys_thread_delete,
    (void *)sys_thread_startup,
    (void *)sys_thread_self,
    (void *)sys_channel_open,
    (void *)sys_channel_close,   /* 45 */
    (void *)sys_channel_send,
    (void *)sys_channel_send_recv_timeout,
    (void *)sys_channel_reply,
    (void *)sys_channel_recv_timeout,
    (void *)sys_enter_critical,  /* 50 */
    (void *)sys_exit_critical,

SYSCALL_USPACE(sys_brk),
    SYSCALL_USPACE(sys_mmap2),
    SYSCALL_USPACE(sys_munmap),
#ifdef ARCH_MM_MMU
    SYSCALL_USPACE(sys_shmget), /* 55 */
    SYSCALL_USPACE(sys_shmrm),
    SYSCALL_USPACE(sys_shmat),
    SYSCALL_USPACE(sys_shmdt),
#else
#ifdef RT_LWP_USING_SHM
    (void *)sys_shm_alloc,      /* 55 */
    (void *)sys_shm_free,
    (void *)sys_shm_retain,
    (void *)sys_notimpl,
#else
    (void *)sys_notimpl,      /* 55 */
    (void *)sys_notimpl,
    (void *)sys_notimpl,
    (void *)sys_notimpl,
#endif /* RT_LWP_USING_SHM */
#endif /* ARCH_MM_MMU */
    (void *)sys_device_init,
    (void *)sys_device_register, /* 60 */
    (void *)sys_device_control,
    (void *)sys_device_find,
    (void *)sys_device_open,
    (void *)sys_device_close,
    (void *)sys_device_read,    /* 65 */
    (void *)sys_device_write,

(void *)sys_stat,
    (void *)sys_thread_find,

SYSCALL_NET(sys_accept),
    SYSCALL_NET(sys_bind),      /* 70 */
    SYSCALL_NET(sys_shutdown),
    SYSCALL_NET(sys_getpeername),
    SYSCALL_NET(sys_getsockname),
    SYSCALL_NET(sys_getsockopt),
    SYSCALL_NET(sys_setsockopt), /* 75 */
    SYSCALL_NET(sys_connect),
    SYSCALL_NET(sys_listen),
    SYSCALL_NET(sys_recv),
    SYSCALL_NET(sys_recvfrom),
    SYSCALL_NET(sys_send),      /* 80 */
    SYSCALL_NET(sys_sendto),
    SYSCALL_NET(sys_socket),

SYSCALL_NET(sys_closesocket),
    SYSCALL_NET(sys_getaddrinfo),
    SYSCALL_NET(sys_gethostbyname2_r), /* 85 */

(void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network, /* 90 */
    (void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network,
    (void *)sys_notimpl,    //(void *)network,

#ifdef RT_USING_DFS
    (void *)sys_select,
#else
    (void *)sys_notimpl,
#endif

(void *)sys_notimpl,    //(void *)sys_hw_interrupt_disable, /* 95 */
    (void *)sys_notimpl,    //(void *)sys_hw_interrupt_enable,

(void *)sys_tick_get,
    (void *)sys_exit_group,

(void *)sys_notimpl,    //(void *)rt_delayed_work_init,
    (void *)sys_notimpl,    //(void *)rt_work_submit,           /* 100 */
    (void *)sys_notimpl,    //(void *)rt_wqueue_wakeup,
    (void *)sys_thread_mdelay,
    (void *)sys_sigaction,
    (void *)sys_sigprocmask,
    (void *)sys_tkill,             /* 105 */
    (void *)sys_thread_sigprocmask,
#ifdef ARCH_MM_MMU
    (void *)sys_cacheflush,
    (void *)sys_notimpl,
    (void *)sys_notimpl,
#else
    (void *)sys_notimpl,
    (void *)sys_lwp_sighandler_set,
    (void *)sys_thread_sighandler_set,
#endif
    (void *)sys_waitpid,          /* 110 */

(void *)sys_timer_create,
    (void *)sys_timer_delete,
    (void *)sys_timer_start,
    (void *)sys_timer_stop,
    (void *)sys_timer_control,  /* 115 */
    (void *)sys_getcwd,
    (void *)sys_chdir,
    (void *)sys_unlink,
    (void *)sys_mkdir,
    (void *)sys_rmdir,          /* 120 */
    (void *)sys_getdents,
    (void *)sys_get_errno,
#ifdef ARCH_MM_MMU
    (void *)sys_set_thread_area,
    (void *)sys_set_tid_address,
#else
    (void *)sys_notimpl,
    (void *)sys_notimpl,
#endif
    (void *)sys_access,         /* 125 */
    (void *)sys_pipe,
    (void *)sys_clock_settime,
    (void *)sys_clock_gettime,
    (void *)sys_clock_getres,
    SYSCALL_USPACE(sys_clone),           /* 130 */
    SYSCALL_USPACE(sys_futex),
    SYSCALL_USPACE(sys_pmutex),
    (void *)sys_dup,
    (void *)sys_dup2,
    (void *)sys_rename,         /* 135 */
    SYSCALL_USPACE(sys_fork),
    SYSCALL_USPACE(sys_execve),
    SYSCALL_USPACE(sys_vfork),
    (void *)sys_gettid,
    (void *)sys_prlimit64,      /* 140 */
    (void *)sys_getrlimit,
    (void *)sys_setrlimit,
    (void *)sys_setsid,
    (void *)sys_getrandom,
};
```

从上面可以看出，关于线程操作，信号量操作，邮箱操作这些都没有提供在内核状态下的全部用户可调用的函数。线程缺少：rt_thread_suspend功能，信号量，缺少rt_sem_control函数功能，同样邮箱，事件等都缺少control函数的功能，导致原来在rt thread中的应用程序因为使用这些函数而无法移植到rt smart上面，这个问题如果解决？
这几天移植应用程序到rt smart上面发现这些函数都不具备，无法完成移植。