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 * @{
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 * @{
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 */
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 */
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/**
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/**
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 * @file
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 * @file
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 * @brief   Syscall table and syscall wrappers.
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 * @brief Syscall table and syscall wrappers.
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 */
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 */
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#include <syscall/syscall.h>
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#include <syscall/syscall.h>
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#include <proc/thread.h>
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#include <proc/thread.h>
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#include <proc/task.h>
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#include <proc/task.h>
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#include <proc/program.h>
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#include <proc/program.h>
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#include <mm/as.h>
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#include <mm/as.h>
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#include <print.h>
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#include <print.h>
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#include <putchar.h>
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#include <errno.h>
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#include <arch.h>
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#include <arch.h>
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#include <debug.h>
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#include <debug.h>
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#include <ddi/device.h>
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#include <ipc/sysipc.h>
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#include <ipc/sysipc.h>
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#include <synch/futex.h>
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#include <synch/futex.h>
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#include <synch/smc.h>
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#include <synch/smc.h>
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#include <ddi/ddi.h>
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#include <ddi/ddi.h>
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#include <ipc/event.h>
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#include <security/cap.h>
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#include <security/cap.h>
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#include <syscall/copy.h>
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#include <sysinfo/sysinfo.h>
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#include <sysinfo/sysinfo.h>
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#include <console/console.h>
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#include <console/console.h>
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#include <udebug/udebug.h>
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#include <udebug/udebug.h>
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/** Print using kernel facility
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 *
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 * Print to kernel log.
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 *
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 */
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static unative_t sys_klog(int fd, const void * buf, size_t count)
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{
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    size_t i;
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    char *data;
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    int rc;
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    if (count > PAGE_SIZE)
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        return ELIMIT;
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    if (count > 0) {
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        data = (char *) malloc(count, 0);
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        if (!data)
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            return ENOMEM;
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        rc = copy_from_uspace(data, buf, count);
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        if (rc) {
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            free(data);
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            return rc;
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        }
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        for (i = 0; i < count; i++)
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            putchar(data[i]);
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        free(data);
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    } else
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        klog_update();
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    return count;
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}
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/** Tell kernel to get keyboard/console access again */
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static unative_t sys_debug_enable_console(void)
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{
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    arch_grab_console();
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    return 0;
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}
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/** Dispatch system call */
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/** Dispatch system call */
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unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
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unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
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    unative_t a4, unative_t a5, unative_t a6, unative_t id)
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    unative_t a4, unative_t a5, unative_t a6, unative_t id)
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{
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{
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    unative_t rc;
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    unative_t rc;
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#ifdef CONFIG_UDEBUG
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#ifdef CONFIG_UDEBUG
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    THREAD->udebug.uspace_state = NULL;
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    THREAD->udebug.uspace_state = NULL;
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    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
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    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
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#endif
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#endif
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    if (id < SYSCALL_END) {
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    if (id < SYSCALL_END) {
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        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
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        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
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    } else {
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    } else {
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        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
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        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
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        task_kill(TASK->taskid);
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        task_kill(TASK->taskid);
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        thread_exit();
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        thread_exit();
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    }
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    }
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    if (THREAD->interrupted)
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    if (THREAD->interrupted)
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        thread_exit();
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        thread_exit();
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#ifdef CONFIG_UDEBUG
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#ifdef CONFIG_UDEBUG
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    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
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    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
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    /*
 82 
    /*
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     * Stopping point needed for tasks that only invoke non-blocking
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     * Stopping point needed for tasks that only invoke non-blocking
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     * system calls.
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     * system calls.
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     */
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     */
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    udebug_stoppable_begin();
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    udebug_stoppable_begin();
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    udebug_stoppable_end();
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    udebug_stoppable_end();
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#endif 
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#endif
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 89 
   
130 
    return rc;
 90 
    return rc;
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}
 91 
}
132 
 
 92 
 
133 
syshandler_t syscall_table[SYSCALL_END] = {
 93 
syshandler_t syscall_table[SYSCALL_END] = {
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    (syshandler_t) sys_klog,
 94 
    (syshandler_t) sys_klog,
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    (syshandler_t) sys_thread_create,
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    (syshandler_t) sys_thread_create,
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    (syshandler_t) sys_thread_exit,
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    (syshandler_t) sys_thread_exit,
140 
    (syshandler_t) sys_thread_get_id,
 100 
    (syshandler_t) sys_thread_get_id,
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    (syshandler_t) sys_task_get_id,
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    (syshandler_t) sys_task_get_id,
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    (syshandler_t) sys_task_set_name,
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    (syshandler_t) sys_program_spawn_loader,
 104 
    (syshandler_t) sys_program_spawn_loader,
144 
   
 105 
   
145 
    /* Synchronization related syscalls. */
 106 
    /* Synchronization related syscalls. */
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    (syshandler_t) sys_futex_sleep_timeout,
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    (syshandler_t) sys_futex_sleep_timeout,
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    (syshandler_t) sys_futex_wakeup,
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    (syshandler_t) sys_futex_wakeup,
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    (syshandler_t) sys_ipc_call_async_fast,
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    (syshandler_t) sys_ipc_call_async_fast,
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    (syshandler_t) sys_ipc_call_async_slow,
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    (syshandler_t) sys_ipc_call_async_slow,
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    (syshandler_t) sys_ipc_answer_fast,
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    (syshandler_t) sys_ipc_answer_fast,
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    (syshandler_t) sys_ipc_answer_slow,
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    (syshandler_t) sys_ipc_answer_slow,
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    (syshandler_t) sys_ipc_forward_fast,
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    (syshandler_t) sys_ipc_forward_fast,
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    (syshandler_t) sys_ipc_forward_slow,
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    (syshandler_t) sys_ipc_wait_for_call,
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    (syshandler_t) sys_ipc_wait_for_call,
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    (syshandler_t) sys_ipc_hangup,
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    (syshandler_t) sys_ipc_hangup,
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    (syshandler_t) sys_ipc_register_irq,
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    (syshandler_t) sys_ipc_register_irq,
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    (syshandler_t) sys_ipc_unregister_irq,
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    (syshandler_t) sys_ipc_unregister_irq,
- 
 
 130 
 
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 131 
    /* Event notification syscalls. */
- 
 
 132 
    (syshandler_t) sys_event_subscribe,
168 
   
 133 
   
169 
    /* Capabilities related syscalls. */
 134 
    /* Capabilities related syscalls. */
170 
    (syshandler_t) sys_cap_grant,
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    (syshandler_t) sys_cap_grant,
171 
    (syshandler_t) sys_cap_revoke,
 136 
    (syshandler_t) sys_cap_revoke,
172 
   
 137 
   
173 
    /* DDI related syscalls. */
 138 
    /* DDI related syscalls. */
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 139 
    (syshandler_t) sys_device_assign_devno,
174 
    (syshandler_t) sys_physmem_map,
 140 
    (syshandler_t) sys_physmem_map,
175 
    (syshandler_t) sys_iospace_enable,
 141 
    (syshandler_t) sys_iospace_enable,
176 
    (syshandler_t) sys_preempt_control,
 142 
    (syshandler_t) sys_preempt_control,
177 
   
 143 
   
178 
    /* Sysinfo syscalls */
 144 
    /* Sysinfo syscalls */
179 
    (syshandler_t) sys_sysinfo_valid,
 145 
    (syshandler_t) sys_sysinfo_valid,
180 
    (syshandler_t) sys_sysinfo_value,
 146 
    (syshandler_t) sys_sysinfo_value,
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 147 
   
182 
    /* Debug calls */
 148 
    /* Debug calls */
183 
    (syshandler_t) sys_debug_enable_console,
 149 
    (syshandler_t) sys_debug_enable_console,
- 
 
 150 
    (syshandler_t) sys_debug_disable_console,
184 
 
 151 
   
185 
    (syshandler_t) sys_ipc_connect_kbox
 152 
    (syshandler_t) sys_ipc_connect_kbox
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};
 153 
};
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 154 
 
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/** @}
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/** @}
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 */
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 */