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Rev | Author | Line No. | Line |
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662 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
662 | decky | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1862 | jermar | 29 | /** @addtogroup generic |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | |||
1264 | jermar | 33 | /** |
1702 | cejka | 34 | * @file |
1264 | jermar | 35 | * @brief Syscall table and syscall wrappers. |
36 | */ |
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37 | |||
678 | decky | 38 | #include <syscall/syscall.h> |
714 | decky | 39 | #include <proc/thread.h> |
1118 | jermar | 40 | #include <proc/task.h> |
977 | jermar | 41 | #include <mm/as.h> |
712 | decky | 42 | #include <print.h> |
43 | #include <putchar.h> |
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955 | palkovsky | 44 | #include <errno.h> |
45 | #include <arch.h> |
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46 | #include <debug.h> |
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1027 | palkovsky | 47 | #include <ipc/sysipc.h> |
1109 | jermar | 48 | #include <synch/futex.h> |
1178 | jermar | 49 | #include <ddi/ddi.h> |
1297 | jermar | 50 | #include <security/cap.h> |
1293 | palkovsky | 51 | #include <syscall/copy.h> |
1318 | vana | 52 | #include <sysinfo/sysinfo.h> |
1474 | palkovsky | 53 | #include <console/console.h> |
1597 | palkovsky | 54 | #include <console/klog.h> |
2801 | svoboda | 55 | #include <udebug.h> |
662 | decky | 56 | |
1448 | palkovsky | 57 | /** Print using kernel facility |
58 | * |
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59 | * Some simulators can print only through kernel. Userspace can use |
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60 | * this syscall to facilitate it. |
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61 | */ |
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1780 | jermar | 62 | static unative_t sys_io(int fd, const void * buf, size_t count) |
1386 | palkovsky | 63 | { |
1448 | palkovsky | 64 | size_t i; |
65 | char *data; |
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66 | int rc; |
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1386 | palkovsky | 67 | |
1448 | palkovsky | 68 | if (count > PAGE_SIZE) |
69 | return ELIMIT; |
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70 | |||
2119 | decky | 71 | data = (char *) malloc(count, 0); |
1448 | palkovsky | 72 | if (!data) |
73 | return ENOMEM; |
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712 | decky | 74 | |
1448 | palkovsky | 75 | rc = copy_from_uspace(data, buf, count); |
76 | if (rc) { |
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77 | free(data); |
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78 | return rc; |
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79 | } |
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80 | |||
712 | decky | 81 | for (i = 0; i < count; i++) |
1448 | palkovsky | 82 | putchar(data[i]); |
83 | free(data); |
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712 | decky | 84 | |
1386 | palkovsky | 85 | return count; |
662 | decky | 86 | } |
87 | |||
1474 | palkovsky | 88 | /** Tell kernel to get keyboard/console access again */ |
1780 | jermar | 89 | static unative_t sys_debug_enable_console(void) |
1474 | palkovsky | 90 | { |
91 | arch_grab_console(); |
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92 | return 0; |
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93 | } |
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94 | |||
1100 | palkovsky | 95 | /** Dispatch system call */ |
2605 | jermar | 96 | unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
97 | unative_t a4, unative_t a5, unative_t a6, unative_t id) |
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1100 | palkovsky | 98 | { |
1780 | jermar | 99 | unative_t rc; |
1579 | jermar | 100 | |
2804 | svoboda | 101 | if (id < SYSCALL_END) { |
102 | udebug_stoppable_begin(); |
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2605 | jermar | 103 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
2804 | svoboda | 104 | } else { |
2605 | jermar | 105 | klog_printf("TASK %llu: Unknown syscall id %llx", TASK->taskid, |
2467 | jermar | 106 | id); |
1597 | palkovsky | 107 | task_kill(TASK->taskid); |
108 | thread_exit(); |
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109 | } |
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2799 | svoboda | 110 | |
1579 | jermar | 111 | if (THREAD->interrupted) |
112 | thread_exit(); |
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2801 | svoboda | 113 | |
2805 | svoboda | 114 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc); |
2804 | svoboda | 115 | udebug_stoppable_end(); |
1579 | jermar | 116 | |
117 | return rc; |
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1100 | palkovsky | 118 | } |
119 | |||
662 | decky | 120 | syshandler_t syscall_table[SYSCALL_END] = { |
2119 | decky | 121 | (syshandler_t) sys_io, |
122 | (syshandler_t) sys_tls_set, |
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1297 | jermar | 123 | |
1235 | jermar | 124 | /* Thread and task related syscalls. */ |
2119 | decky | 125 | (syshandler_t) sys_thread_create, |
126 | (syshandler_t) sys_thread_exit, |
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2187 | decky | 127 | (syshandler_t) sys_thread_get_id, |
2119 | decky | 128 | (syshandler_t) sys_task_get_id, |
1235 | jermar | 129 | |
130 | /* Synchronization related syscalls. */ |
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2119 | decky | 131 | (syshandler_t) sys_futex_sleep_timeout, |
132 | (syshandler_t) sys_futex_wakeup, |
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1235 | jermar | 133 | |
134 | /* Address space related syscalls. */ |
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2119 | decky | 135 | (syshandler_t) sys_as_area_create, |
136 | (syshandler_t) sys_as_area_resize, |
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137 | (syshandler_t) sys_as_area_destroy, |
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138 | |||
1235 | jermar | 139 | /* IPC related syscalls. */ |
2119 | decky | 140 | (syshandler_t) sys_ipc_call_sync_fast, |
2615 | jermar | 141 | (syshandler_t) sys_ipc_call_sync_slow, |
2119 | decky | 142 | (syshandler_t) sys_ipc_call_async_fast, |
2618 | jermar | 143 | (syshandler_t) sys_ipc_call_async_slow, |
2119 | decky | 144 | (syshandler_t) sys_ipc_answer_fast, |
2619 | jermar | 145 | (syshandler_t) sys_ipc_answer_slow, |
2119 | decky | 146 | (syshandler_t) sys_ipc_forward_fast, |
147 | (syshandler_t) sys_ipc_wait_for_call, |
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148 | (syshandler_t) sys_ipc_hangup, |
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149 | (syshandler_t) sys_ipc_register_irq, |
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150 | (syshandler_t) sys_ipc_unregister_irq, |
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151 | |||
1297 | jermar | 152 | /* Capabilities related syscalls. */ |
2119 | decky | 153 | (syshandler_t) sys_cap_grant, |
154 | (syshandler_t) sys_cap_revoke, |
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155 | |||
1235 | jermar | 156 | /* DDI related syscalls. */ |
2119 | decky | 157 | (syshandler_t) sys_physmem_map, |
158 | (syshandler_t) sys_iospace_enable, |
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159 | (syshandler_t) sys_preempt_control, |
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1318 | vana | 160 | |
161 | /* Sysinfo syscalls */ |
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2119 | decky | 162 | (syshandler_t) sys_sysinfo_valid, |
163 | (syshandler_t) sys_sysinfo_value, |
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1474 | palkovsky | 164 | |
165 | /* Debug calls */ |
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2801 | svoboda | 166 | (syshandler_t) sys_debug_enable_console, |
167 | |||
168 | (syshandler_t) sys_ipc_connect_task |
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662 | decky | 169 | }; |
1702 | cejka | 170 | |
1862 | jermar | 171 | /** @} |
1702 | cejka | 172 | */ |