Subversion Repositories HelenOS

Rev

Rev 4055 | Rev 4201 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4055 Rev 4156
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>
 44 
#include <putchar.h>
45 
#include <errno.h>
 - 
 
46 
#include <arch.h>
 45 
#include <arch.h>
47 
#include <debug.h>
 46 
#include <debug.h>
- 
 
 47 
#include <ddi/device.h>
48 
#include <ipc/sysipc.h>
 48 
#include <ipc/sysipc.h>
49 
#include <synch/futex.h>
 49 
#include <synch/futex.h>
50 
#include <synch/smc.h>
 50 
#include <synch/smc.h>
51 
#include <ddi/ddi.h>
 51 
#include <ddi/ddi.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 
/** Tell kernel to relinquish keyboard/console access */
 - 
 
103 
static unative_t sys_debug_disable_console(void)
 - 
 
104 
{
 - 
 
105 
    release_console();
 - 
 
106 
    return true;
 - 
 
107 
}
 - 
 
108 
 
 - 
 
109 
/** Dispatch system call */
 57 
/** Dispatch system call */
110 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
 58 
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
111 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
 59 
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
112 
{
 60 
{
113 
    unative_t rc;
 61 
    unative_t rc;
114 
 
 62 
   
115 
#ifdef CONFIG_UDEBUG
 63 
#ifdef CONFIG_UDEBUG
116 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
 64 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
117 
#endif
 65 
#endif
- 
 
 66 
   
118 
    if (id < SYSCALL_END) {
 67 
    if (id < SYSCALL_END) {
119 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
 68 
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
120 
    } else {
 69 
    } else {
121 
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
 70 
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
122 
        task_kill(TASK->taskid);
 71 
        task_kill(TASK->taskid);
123 
        thread_exit();
 72 
        thread_exit();
124 
    }
 73 
    }
125 
       
 74 
   
126 
    if (THREAD->interrupted)
 75 
    if (THREAD->interrupted)
127 
        thread_exit();
 76 
        thread_exit();
128 
 
 77 
   
129 
#ifdef CONFIG_UDEBUG
 78 
#ifdef CONFIG_UDEBUG
130 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
 79 
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
131 
 
 80 
   
132 
    /*
 81 
    /*
133 
     * Stopping point needed for tasks that only invoke non-blocking
 82 
     * Stopping point needed for tasks that only invoke non-blocking
134 
     * system calls.
 83 
     * system calls.
135 
     */
 84 
     */
136 
    udebug_stoppable_begin();
 85 
    udebug_stoppable_begin();
137 
    udebug_stoppable_end();
 86 
    udebug_stoppable_end();
138 
#endif 
87 
#endif
- 
 
 88 
   
139 
    return rc;
 89 
    return rc;
140 
}
 90 
}
141 
 
 91 
 
142 
syshandler_t syscall_table[SYSCALL_END] = {
 92 
syshandler_t syscall_table[SYSCALL_END] = {
143 
    (syshandler_t) sys_klog,
 93 
    (syshandler_t) sys_klog,
Line 180... Line 130...
180 
    /* Capabilities related syscalls. */
 130 
    /* Capabilities related syscalls. */
181 
    (syshandler_t) sys_cap_grant,
 131 
    (syshandler_t) sys_cap_grant,
182 
    (syshandler_t) sys_cap_revoke,
 132 
    (syshandler_t) sys_cap_revoke,
183 
   
 133 
   
184 
    /* DDI related syscalls. */
 134 
    /* DDI related syscalls. */
- 
 
 135 
    (syshandler_t) sys_device_assign_devno,
185 
    (syshandler_t) sys_physmem_map,
 136 
    (syshandler_t) sys_physmem_map,
186 
    (syshandler_t) sys_iospace_enable,
 137 
    (syshandler_t) sys_iospace_enable,
187 
    (syshandler_t) sys_preempt_control,
 138 
    (syshandler_t) sys_preempt_control,
188 
   
 139 
   
189 
    /* Sysinfo syscalls */
 140 
    /* Sysinfo syscalls */