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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Martin Decky |
2 | * Copyright (c) 2005 Martin Decky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup generic |
29 | /** @addtogroup generic |
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, |
151 | (syshandler_t) sys_tls_set, |
101 | (syshandler_t) sys_tls_set, |
152 | 102 | ||
153 | /* Thread and task related syscalls. */ |
103 | /* Thread and task related syscalls. */ |
154 | (syshandler_t) sys_thread_create, |
104 | (syshandler_t) sys_thread_create, |
155 | (syshandler_t) sys_thread_exit, |
105 | (syshandler_t) sys_thread_exit, |
156 | (syshandler_t) sys_thread_get_id, |
106 | (syshandler_t) sys_thread_get_id, |
157 | 107 | ||
158 | (syshandler_t) sys_task_get_id, |
108 | (syshandler_t) sys_task_get_id, |
159 | (syshandler_t) sys_task_set_name, |
109 | (syshandler_t) sys_task_set_name, |
160 | (syshandler_t) sys_program_spawn_loader, |
110 | (syshandler_t) sys_program_spawn_loader, |
161 | 111 | ||
162 | /* Synchronization related syscalls. */ |
112 | /* Synchronization related syscalls. */ |
163 | (syshandler_t) sys_futex_sleep_timeout, |
113 | (syshandler_t) sys_futex_sleep_timeout, |
164 | (syshandler_t) sys_futex_wakeup, |
114 | (syshandler_t) sys_futex_wakeup, |
165 | (syshandler_t) sys_smc_coherence, |
115 | (syshandler_t) sys_smc_coherence, |
166 | 116 | ||
167 | /* Address space related syscalls. */ |
117 | /* Address space related syscalls. */ |
168 | (syshandler_t) sys_as_area_create, |
118 | (syshandler_t) sys_as_area_create, |
169 | (syshandler_t) sys_as_area_resize, |
119 | (syshandler_t) sys_as_area_resize, |
170 | (syshandler_t) sys_as_area_change_flags, |
120 | (syshandler_t) sys_as_area_change_flags, |
171 | (syshandler_t) sys_as_area_destroy, |
121 | (syshandler_t) sys_as_area_destroy, |
172 | 122 | ||
173 | /* IPC related syscalls. */ |
123 | /* IPC related syscalls. */ |
174 | (syshandler_t) sys_ipc_call_sync_fast, |
124 | (syshandler_t) sys_ipc_call_sync_fast, |
175 | (syshandler_t) sys_ipc_call_sync_slow, |
125 | (syshandler_t) sys_ipc_call_sync_slow, |
176 | (syshandler_t) sys_ipc_call_async_fast, |
126 | (syshandler_t) sys_ipc_call_async_fast, |
177 | (syshandler_t) sys_ipc_call_async_slow, |
127 | (syshandler_t) sys_ipc_call_async_slow, |
178 | (syshandler_t) sys_ipc_answer_fast, |
128 | (syshandler_t) sys_ipc_answer_fast, |
179 | (syshandler_t) sys_ipc_answer_slow, |
129 | (syshandler_t) sys_ipc_answer_slow, |
180 | (syshandler_t) sys_ipc_forward_fast, |
130 | (syshandler_t) sys_ipc_forward_fast, |
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 */ |
197 | (syshandler_t) sys_sysinfo_valid, |
151 | (syshandler_t) sys_sysinfo_valid, |
198 | (syshandler_t) sys_sysinfo_value, |
152 | (syshandler_t) sys_sysinfo_value, |
199 | 153 | ||
200 | /* Debug calls */ |
154 | /* Debug calls */ |
201 | (syshandler_t) sys_debug_putint, |
155 | (syshandler_t) sys_debug_putint, |
202 | (syshandler_t) sys_debug_enable_console, |
156 | (syshandler_t) sys_debug_enable_console, |
203 | (syshandler_t) sys_debug_disable_console, |
157 | (syshandler_t) sys_debug_disable_console, |
204 | 158 | ||
205 | (syshandler_t) sys_ipc_connect_kbox |
159 | (syshandler_t) sys_ipc_connect_kbox |
206 | }; |
160 | }; |
207 | 161 | ||
208 | /** @} |
162 | /** @} |
209 | */ |
163 | */ |
210 | 164 |