Subversion Repositories HelenOS

Rev

Rev 4344 | Rev 4348 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4344 Rev 4347
Line 30... Line 30...
30 
 * @{
 30 
 * @{
31 
 */
 31 
 */
32 
 
 32 
 
33 
/**
 33 
/**
34 
 * @file
 34 
 * @file
35 
 * @brief   Syscall table and syscall wrappers.
 35 
 * @brief Syscall table and syscall wrappers.
36 
 */
 36 
 */
37 
 
 37 
 
38 
#include <syscall/syscall.h>
 38 
#include <syscall/syscall.h>
39 
#include <proc/thread.h>
 39 
#include <proc/thread.h>
40 
#include <proc/task.h>
 40 
#include <proc/task.h>
41 
#include <proc/program.h>
 41 
#include <proc/program.h>
42 
#include <mm/as.h>
 42 
#include <mm/as.h>
43 
#include <print.h>
 43 
#include <print.h>
44 
#include <putchar.h>
 - 
 
45 
#include <errno.h>
 - 
 
46 
#include <arch.h>
 44 
#include <arch.h>
47 
#include <debug.h>
 45 
#include <debug.h>
- 
 
 46 
#include <ddi/device.h>
48 
#include <ipc/sysipc.h>
 47 
#include <ipc/sysipc.h>
49 
#include <synch/futex.h>
 48 
#include <synch/futex.h>
50 
#include <synch/smc.h>
 49 
#include <synch/smc.h>
51 
#include <ddi/ddi.h>
 50 
#include <ddi/ddi.h>
- 
 
 51 
#include <event/event.h>
52 
#include <security/cap.h>
 52 
#include <security/cap.h>
53 
#include <syscall/copy.h>
 - 
 
54 
#include <sysinfo/sysinfo.h>
 53 
#include <sysinfo/sysinfo.h>
55 
#include <console/console.h>
 54 
#include <console/console.h>
56 
#include <udebug/udebug.h>
 55 
#include <udebug/udebug.h>
57 
 
 56 
 
58 
/** Print using kernel facility
 - 
 
59 
 *
 - 
 
60 
 * Print to kernel log.
 - 
 
61 
 *
 - 
 
62 
 */
 - 
 
63 
static unative_t sys_klog(int fd, const void * buf, size_t count)
 - 
 
64 
{
 - 
 
65 
    char *data;
 - 
 
66 
    int rc;
 - 
 
67 
 
 - 
 
68 
    if (count > PAGE_SIZE)
 - 
 
69 
        return ELIMIT;
 - 
 
70 
   
 - 
 
71 
    if (count > 0) {
 - 
 
72 
        data = (char *) malloc(count + 1, 0);
 - 
 
73 
        if (!data)
 - 
 
74 
            return ENOMEM;
 - 
 
75 
       
 - 
 
76 
        rc = copy_from_uspace(data, buf, count);
 - 
 
77 
        if (rc) {
 - 
 
78 
            free(data);
 - 
 
79 
            return rc;
 - 
 
80 
        }
 - 
 
81 
        data[count] = 0;
 - 
 
82 
       
 - 
 
83 
        printf("%s", data);
 - 
 
84 
        free(data);
 - 
 
85 
    } else
 - 
 
86 
        klog_update();
 - 
 
87 
   
 - 
 
88 
    return count;
 - 
 
89 
}
 - 
 
90 
 
 - 
 
91 
/** Tell kernel to get keyboard/console access again */
 - 
 
92 
static unative_t sys_debug_enable_console(void)
 - 
 
93 
{
 - 
 
94 
#ifdef CONFIG_KCONSOLE
 - 
 
95 
    grab_console();
 - 
 
96 
    return true;
 - 
 
97 
#else
 - 
 
98 
    return false;
 - 
 
99 
#endif
 - 
 
100 
}
 - 
 
101 
 
 - 
 
102 
/** Print a hex integer into klog */
 57 
/** Print a hex integer into klog */
103 
static unative_t sys_debug_putint(unative_t i)
 58 
static unative_t sys_debug_putint(unative_t i)
104 
{
 59 
{
105 
    printf("[task:0x%x]", i);
 60 
    printf("[task:0x%x]", i);
106 
    return 0;
 61 
    return 0;
107 
}
 62 
}
108 
 
 63 
 
109 
/** Tell kernel to relinquish keyboard/console access */
 - 
 
110 
static unative_t sys_debug_disable_console(void)
 - 
 
111 
{
 - 
 
112 
    release_console();
 - 
 
113 
    return true;
 - 
 
114 
}
 - 
 
115 
 
 - 
 
116 
/** Dispatch system call */
 64 
/** Dispatch system call */
117 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
 65 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
118 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
 66 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
119 
{
 67 
{
120 
    unative_t rc;
 68 
    unative_t rc;
121 
 
 69 
   
122 
#ifdef CONFIG_UDEBUG
 70 
#ifdef CONFIG_UDEBUG
123 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
 71 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
124 
#endif
 72 
#endif
- 
 
 73 
   
125 
    if (id < SYSCALL_END) {
 74 
    if (id < SYSCALL_END) {
126 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
 75 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
127 
    } else {
 76 
    } else {
128 
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
 77 
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
129 
        task_kill(TASK->taskid);
 78 
        task_kill(TASK->taskid);
130 
        thread_exit();
 79 
        thread_exit();
131 
    }
 80 
    }
132 
       
 81 
   
133 
    if (THREAD->interrupted)
 82 
    if (THREAD->interrupted)
134 
        thread_exit();
 83 
        thread_exit();
135 
 
 84 
   
136 
#ifdef CONFIG_UDEBUG
 85 
#ifdef CONFIG_UDEBUG
137 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
 86 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
138 
 
 87 
   
139 
    /*
 88 
    /*
140 
     * Stopping point needed for tasks that only invoke non-blocking
 89 
     * Stopping point needed for tasks that only invoke non-blocking
141 
     * system calls.
 90 
     * system calls.
142 
     */
 91 
     */
143 
    udebug_stoppable_begin();
 92 
    udebug_stoppable_begin();
144 
    udebug_stoppable_end();
 93 
    udebug_stoppable_end();
145 
#endif 
94 
#endif
- 
 
 95 
   
146 
    return rc;
 96 
    return rc;
147 
}
 97 
}
148 
 
 98 
 
149 
syshandler_t syscall_table[SYSCALL_END] = {
 99 
syshandler_t syscall_table[SYSCALL_END] = {
150 
    (syshandler_t) sys_klog,
 100 
    (syshandler_t) sys_klog,
Line 181... Line 131...
181 
    (syshandler_t) sys_ipc_forward_slow,
 131 
    (syshandler_t) sys_ipc_forward_slow,
182 
    (syshandler_t) sys_ipc_wait_for_call,
 132 
    (syshandler_t) sys_ipc_wait_for_call,
183 
    (syshandler_t) sys_ipc_hangup,
 133 
    (syshandler_t) sys_ipc_hangup,
184 
    (syshandler_t) sys_ipc_register_irq,
 134 
    (syshandler_t) sys_ipc_register_irq,
185 
    (syshandler_t) sys_ipc_unregister_irq,
 135 
    (syshandler_t) sys_ipc_unregister_irq,
- 
 
 136 
 
- 
 
 137 
    /* Event notification syscalls. */
- 
 
 138 
    (syshandler_t) sys_event_subscribe,
186 
   
 139 
   
187 
    /* Capabilities related syscalls. */
 140 
    /* Capabilities related syscalls. */
188 
    (syshandler_t) sys_cap_grant,
 141 
    (syshandler_t) sys_cap_grant,
189 
    (syshandler_t) sys_cap_revoke,
 142 
    (syshandler_t) sys_cap_revoke,
190 
   
 143 
   
191 
    /* DDI related syscalls. */
 144 
    /* DDI related syscalls. */
- 
 
 145 
    (syshandler_t) sys_device_assign_devno,
192 
    (syshandler_t) sys_physmem_map,
 146 
    (syshandler_t) sys_physmem_map,
193 
    (syshandler_t) sys_iospace_enable,
 147 
    (syshandler_t) sys_iospace_enable,
194 
    (syshandler_t) sys_preempt_control,
 148 
    (syshandler_t) sys_preempt_control,
195 
   
 149 
   
196 
    /* Sysinfo syscalls */
 150 
    /* Sysinfo syscalls */