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Rev 3022 Rev 4055
Line 36... Line 36...
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 */
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 */
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 37 
 
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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>
- 
 
 41 
#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 <putchar.h>
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#include <errno.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 <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 <ddi/ddi.h>
 51 
#include <ddi/ddi.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 <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 <console/klog.h>
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#include <udebug/udebug.h>
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 57 
 
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/** Print using kernel facility
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/** Print using kernel facility
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 *
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 *
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 * Some simulators can print only through kernel. Userspace can use
 - 
 
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 * this syscall to facilitate it.
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 * Print to kernel log.
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 *
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 */
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 */
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static unative_t sys_io(int fd, const void * buf, size_t count)
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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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{
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    size_t i;
 - 
 
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    char *data;
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    char *data;
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    int rc;
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    int rc;
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 67 
 
67 
    if (count > PAGE_SIZE)
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    if (count > PAGE_SIZE)
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        return ELIMIT;
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        return ELIMIT;
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 - 
 
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    data = (char *) malloc(count, 0);
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71 
    if (!data)
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        return ENOMEM;
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 70 
   
- 
 
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    if (count > 0) {
- 
 
 72 
        data = (char *) malloc(count + 1, 0);
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 73 
        if (!data)
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            return ENOMEM;
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 75 
       
74 
    rc = copy_from_uspace(data, buf, count);
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        rc = copy_from_uspace(data, buf, count);
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    if (rc) {
 77 
        if (rc) {
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 78 
            free(data);
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            return rc;
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 80 
        }
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        data[count] = 0;
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 82 
       
- 
 
 83 
        printf("%s", data);
76 
        free(data);
 84 
        free(data);
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        return rc;
 - 
 
78 
    }
 85 
    } else
79 
 
 - 
 
80 
    for (i = 0; i < count; i++)
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81 
        putchar(data[i]);
 86 
        klog_update();
82 
    free(data);
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83 
   
 87 
   
84 
    return count;
 88 
    return count;
85 
}
 89 
}
86 
 
 90 
 
87 
/** Tell kernel to get keyboard/console access again */
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/** Tell kernel to get keyboard/console access again */
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static unative_t sys_debug_enable_console(void)
 92 
static unative_t sys_debug_enable_console(void)
89 
{
 93 
{
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 94 
#ifdef CONFIG_KCONSOLE
90 
    arch_grab_console();
 95 
    grab_console();
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 96 
    return true;
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 97 
#else
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 98 
    return false;
- 
 
 99 
#endif
- 
 
 100 
}
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 101 
 
- 
 
 102 
/** Tell kernel to relinquish keyboard/console access */
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 103 
static unative_t sys_debug_disable_console(void)
- 
 
 104 
{
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 105 
    release_console();
91 
    return 0;
 106 
    return true;
92 
}
 107 
}
93 
 
 108 
 
94 
/** Dispatch system call */
 109 
/** Dispatch system call */
95 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
 110 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
96 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
 111 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
97 
{
 112 
{
98 
    unative_t rc;
 113 
    unative_t rc;
99 
 
 114 
 
- 
 
 115 
#ifdef CONFIG_UDEBUG
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 116 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
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 117 
#endif
100 
    if (id < SYSCALL_END)
 118 
    if (id < SYSCALL_END) {
101 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
 119 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
102 
    else {
 120 
    } else {
103 
        klog_printf("TASK %llu: Unknown syscall id %llx", TASK->taskid,
 121 
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
104 
            id);
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105 
        task_kill(TASK->taskid);
 122 
        task_kill(TASK->taskid);
106 
        thread_exit();
 123 
        thread_exit();
107 
    }
 124 
    }
108 
       
 125 
       
109 
    if (THREAD->interrupted)
 126 
    if (THREAD->interrupted)
110 
        thread_exit();
 127 
        thread_exit();
- 
 
 128 
 
- 
 
 129 
#ifdef CONFIG_UDEBUG
- 
 
 130 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
111 
   
 131 
 
- 
 
 132 
    /*
- 
 
 133 
     * Stopping point needed for tasks that only invoke non-blocking
- 
 
 134 
     * system calls.
- 
 
 135 
     */
- 
 
 136 
    udebug_stoppable_begin();
- 
 
 137 
    udebug_stoppable_end();
- 
 
 138 
#endif 
112 
    return rc;
 139 
    return rc;
113 
}
 140 
}
114 
 
 141 
 
115 
syshandler_t syscall_table[SYSCALL_END] = {
 142 
syshandler_t syscall_table[SYSCALL_END] = {
116 
    (syshandler_t) sys_io,
 143 
    (syshandler_t) sys_klog,
117 
    (syshandler_t) sys_tls_set,
 144 
    (syshandler_t) sys_tls_set,
118 
   
 145 
   
119 
    /* Thread and task related syscalls. */
 146 
    /* Thread and task related syscalls. */
120 
    (syshandler_t) sys_thread_create,
 147 
    (syshandler_t) sys_thread_create,
121 
    (syshandler_t) sys_thread_exit,
 148 
    (syshandler_t) sys_thread_exit,
122 
    (syshandler_t) sys_thread_get_id,
 149 
    (syshandler_t) sys_thread_get_id,
- 
 
 150 
   
123 
    (syshandler_t) sys_task_get_id,
 151 
    (syshandler_t) sys_task_get_id,
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 152 
    (syshandler_t) sys_task_set_name,
- 
 
 153 
    (syshandler_t) sys_program_spawn_loader,
124 
   
 154 
   
125 
    /* Synchronization related syscalls. */
 155 
    /* Synchronization related syscalls. */
126 
    (syshandler_t) sys_futex_sleep_timeout,
 156 
    (syshandler_t) sys_futex_sleep_timeout,
127 
    (syshandler_t) sys_futex_wakeup,
 157 
    (syshandler_t) sys_futex_wakeup,
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 158 
    (syshandler_t) sys_smc_coherence,
128 
   
 159 
   
129 
    /* Address space related syscalls. */
 160 
    /* Address space related syscalls. */
130 
    (syshandler_t) sys_as_area_create,
 161 
    (syshandler_t) sys_as_area_create,
131 
    (syshandler_t) sys_as_area_resize,
 162 
    (syshandler_t) sys_as_area_resize,
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 163 
    (syshandler_t) sys_as_area_change_flags,
132 
    (syshandler_t) sys_as_area_destroy,
 164 
    (syshandler_t) sys_as_area_destroy,
133 
   
 165 
   
134 
    /* IPC related syscalls. */
 166 
    /* IPC related syscalls. */
135 
    (syshandler_t) sys_ipc_call_sync_fast,
 167 
    (syshandler_t) sys_ipc_call_sync_fast,
136 
    (syshandler_t) sys_ipc_call_sync_slow,
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    (syshandler_t) sys_ipc_call_sync_slow,
137 
    (syshandler_t) sys_ipc_call_async_fast,
 169 
    (syshandler_t) sys_ipc_call_async_fast,
138 
    (syshandler_t) sys_ipc_call_async_slow,
 170 
    (syshandler_t) sys_ipc_call_async_slow,
139 
    (syshandler_t) sys_ipc_answer_fast,
 171 
    (syshandler_t) sys_ipc_answer_fast,
140 
    (syshandler_t) sys_ipc_answer_slow,
 172 
    (syshandler_t) sys_ipc_answer_slow,
141 
    (syshandler_t) sys_ipc_forward_fast,
 173 
    (syshandler_t) sys_ipc_forward_fast,
- 
 
 174 
    (syshandler_t) sys_ipc_forward_slow,
142 
    (syshandler_t) sys_ipc_wait_for_call,
 175 
    (syshandler_t) sys_ipc_wait_for_call,
143 
    (syshandler_t) sys_ipc_hangup,
 176 
    (syshandler_t) sys_ipc_hangup,
144 
    (syshandler_t) sys_ipc_register_irq,
 177 
    (syshandler_t) sys_ipc_register_irq,
145 
    (syshandler_t) sys_ipc_unregister_irq,
 178 
    (syshandler_t) sys_ipc_unregister_irq,
146 
   
 179 
   
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156 
    /* Sysinfo syscalls */
 189 
    /* Sysinfo syscalls */
157 
    (syshandler_t) sys_sysinfo_valid,
 190 
    (syshandler_t) sys_sysinfo_valid,
158 
    (syshandler_t) sys_sysinfo_value,
 191 
    (syshandler_t) sys_sysinfo_value,
159 
   
 192 
   
160 
    /* Debug calls */
 193 
    /* Debug calls */
161 
    (syshandler_t) sys_debug_enable_console
 194 
    (syshandler_t) sys_debug_enable_console,
- 
 
 195 
    (syshandler_t) sys_debug_disable_console,
- 
 
 196 
   
- 
 
 197 
    (syshandler_t) sys_ipc_connect_kbox
162 
};
 198 
};
163 
 
 199 
 
164 
/** @}
 200 
/** @}
165 
 */
 201 
 */