Subversion Repositories HelenOS

Rev

Rev 3343 | Rev 3742 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
662 decky 1
/*
2071 jermar 2
 * Copyright (c) 2005 Martin Decky
662 decky 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1862 jermar 29
/** @addtogroup generic
1702 cejka 30
 * @{
31
 */
32
 
1264 jermar 33
/**
1702 cejka 34
 * @file
1264 jermar 35
 * @brief   Syscall table and syscall wrappers.
36
 */
37
 
678 decky 38
#include <syscall/syscall.h>
714 decky 39
#include <proc/thread.h>
1118 jermar 40
#include <proc/task.h>
3222 svoboda 41
#include <proc/program.h>
977 jermar 42
#include <mm/as.h>
712 decky 43
#include <print.h>
44
#include <putchar.h>
955 palkovsky 45
#include <errno.h>
46
#include <arch.h>
47
#include <debug.h>
1027 palkovsky 48
#include <ipc/sysipc.h>
1109 jermar 49
#include <synch/futex.h>
3222 svoboda 50
#include <synch/smc.h>
1178 jermar 51
#include <ddi/ddi.h>
1297 jermar 52
#include <security/cap.h>
1293 palkovsky 53
#include <syscall/copy.h>
1318 vana 54
#include <sysinfo/sysinfo.h>
1474 palkovsky 55
#include <console/console.h>
3492 rimsky 56
#include <udebug/udebug.h>
662 decky 57
 
1448 palkovsky 58
/** Print using kernel facility
59
 *
3064 decky 60
 * Print to kernel log.
61
 *
1448 palkovsky 62
 */
3113 decky 63
static unative_t sys_klog(int fd, const void * buf, size_t count)
1386 palkovsky 64
{
1448 palkovsky 65
    size_t i;
66
    char *data;
67
    int rc;
1386 palkovsky 68
 
1448 palkovsky 69
    if (count > PAGE_SIZE)
70
        return ELIMIT;
712 decky 71
 
3097 decky 72
    if (count > 0) {
73
        data = (char *) malloc(count, 0);
74
        if (!data)
75
            return ENOMEM;
76
 
77
        rc = copy_from_uspace(data, buf, count);
78
        if (rc) {
79
            free(data);
80
            return rc;
81
        }
82
 
83
        for (i = 0; i < count; i++)
84
            putchar(data[i]);
1448 palkovsky 85
        free(data);
3097 decky 86
    } else
87
        klog_update();
712 decky 88
 
1386 palkovsky 89
    return count;
662 decky 90
}
91
 
1474 palkovsky 92
/** Tell kernel to get keyboard/console access again */
1780 jermar 93
static unative_t sys_debug_enable_console(void)
1474 palkovsky 94
{
95
    arch_grab_console();
96
    return 0;
97
}
98
 
1100 palkovsky 99
/** Dispatch system call */
2605 jermar 100
unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
101
    unative_t a4, unative_t a5, unative_t a6, unative_t id)
1100 palkovsky 102
{
1780 jermar 103
    unative_t rc;
1579 jermar 104
 
3492 rimsky 105
#ifdef CONFIG_UDEBUG
106
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
107
#endif
108
 
109
    if (id < SYSCALL_END) {
110
#ifdef CONFIG_UDEBUG
111
        udebug_stoppable_begin();
112
#endif
2605 jermar 113
        rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
3492 rimsky 114
    } else {
3064 decky 115
        printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
1597 palkovsky 116
        task_kill(TASK->taskid);
117
        thread_exit();
118
    }
1579 jermar 119
 
120
    if (THREAD->interrupted)
121
        thread_exit();
3492 rimsky 122
 
123
#ifdef CONFIG_UDEBUG
124
    udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
125
    udebug_stoppable_end();
126
#endif
1579 jermar 127
 
128
    return rc;
1100 palkovsky 129
}
130
 
662 decky 131
syshandler_t syscall_table[SYSCALL_END] = {
3113 decky 132
    (syshandler_t) sys_klog,
2119 decky 133
    (syshandler_t) sys_tls_set,
1297 jermar 134
 
1235 jermar 135
    /* Thread and task related syscalls. */
2119 decky 136
    (syshandler_t) sys_thread_create,
137
    (syshandler_t) sys_thread_exit,
2187 decky 138
    (syshandler_t) sys_thread_get_id,
3064 decky 139
 
2119 decky 140
    (syshandler_t) sys_task_get_id,
3222 svoboda 141
    (syshandler_t) sys_program_spawn_loader,
1235 jermar 142
 
143
    /* Synchronization related syscalls. */
2119 decky 144
    (syshandler_t) sys_futex_sleep_timeout,
145
    (syshandler_t) sys_futex_wakeup,
3222 svoboda 146
    (syshandler_t) sys_smc_coherence,
1235 jermar 147
 
148
    /* Address space related syscalls. */
2119 decky 149
    (syshandler_t) sys_as_area_create,
150
    (syshandler_t) sys_as_area_resize,
3222 svoboda 151
    (syshandler_t) sys_as_area_change_flags,
2119 decky 152
    (syshandler_t) sys_as_area_destroy,
153
 
1235 jermar 154
    /* IPC related syscalls. */
2119 decky 155
    (syshandler_t) sys_ipc_call_sync_fast,
2615 jermar 156
    (syshandler_t) sys_ipc_call_sync_slow,
2119 decky 157
    (syshandler_t) sys_ipc_call_async_fast,
2618 jermar 158
    (syshandler_t) sys_ipc_call_async_slow,
2119 decky 159
    (syshandler_t) sys_ipc_answer_fast,
2619 jermar 160
    (syshandler_t) sys_ipc_answer_slow,
2119 decky 161
    (syshandler_t) sys_ipc_forward_fast,
162
    (syshandler_t) sys_ipc_wait_for_call,
163
    (syshandler_t) sys_ipc_hangup,
164
    (syshandler_t) sys_ipc_register_irq,
165
    (syshandler_t) sys_ipc_unregister_irq,
166
 
1297 jermar 167
    /* Capabilities related syscalls. */
2119 decky 168
    (syshandler_t) sys_cap_grant,
169
    (syshandler_t) sys_cap_revoke,
170
 
1235 jermar 171
    /* DDI related syscalls. */
2119 decky 172
    (syshandler_t) sys_physmem_map,
173
    (syshandler_t) sys_iospace_enable,
174
    (syshandler_t) sys_preempt_control,
1318 vana 175
 
176
    /* Sysinfo syscalls */
2119 decky 177
    (syshandler_t) sys_sysinfo_valid,
178
    (syshandler_t) sys_sysinfo_value,
1474 palkovsky 179
 
180
    /* Debug calls */
3492 rimsky 181
    (syshandler_t) sys_debug_enable_console,
182
 
183
    (syshandler_t) sys_ipc_connect_kbox
662 decky 184
};
1702 cejka 185
 
1862 jermar 186
/** @}
1702 cejka 187
 */