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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 <arch.h> |
44 | #include <arch.h> |
45 | #include <debug.h> |
45 | #include <debug.h> |
46 | #include <ddi/device.h> |
46 | #include <ddi/device.h> |
47 | #include <ipc/sysipc.h> |
47 | #include <ipc/sysipc.h> |
48 | #include <synch/futex.h> |
48 | #include <synch/futex.h> |
49 | #include <synch/smc.h> |
49 | #include <synch/smc.h> |
50 | #include <ddi/ddi.h> |
50 | #include <ddi/ddi.h> |
51 | #include <ipc/event.h> |
51 | #include <ipc/event.h> |
52 | #include <security/cap.h> |
52 | #include <security/cap.h> |
53 | #include <sysinfo/sysinfo.h> |
53 | #include <sysinfo/sysinfo.h> |
54 | #include <console/console.h> |
54 | #include <console/console.h> |
55 | #include <udebug/udebug.h> |
55 | #include <udebug/udebug.h> |
56 | 56 | ||
57 | /** Dispatch system call */ |
57 | /** Dispatch system call */ |
58 | 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, |
59 | 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) |
60 | { |
60 | { |
61 | unative_t rc; |
61 | unative_t rc; |
62 | 62 | ||
63 | #ifdef CONFIG_UDEBUG |
63 | #ifdef CONFIG_UDEBUG |
- | 64 | bool debug; |
|
- | 65 | ||
- | 66 | /* |
|
- | 67 | * Early check for undebugged tasks. We do not lock anything as this |
|
- | 68 | * test need not be precise in either way. |
|
- | 69 | */ |
|
- | 70 | debug = THREAD->udebug.active; |
|
- | 71 | ||
- | 72 | if (debug) { |
|
64 | THREAD->udebug.uspace_state = NULL; |
73 | THREAD->udebug.uspace_state = NULL; |
65 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false); |
74 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false); |
- | 75 | } |
|
66 | #endif |
76 | #endif |
67 | 77 | ||
68 | if (id < SYSCALL_END) { |
78 | if (id < SYSCALL_END) { |
69 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
79 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
70 | } else { |
80 | } else { |
71 | printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id); |
81 | printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id); |
72 | task_kill(TASK->taskid); |
82 | task_kill(TASK->taskid); |
73 | thread_exit(); |
83 | thread_exit(); |
74 | } |
84 | } |
75 | 85 | ||
76 | if (THREAD->interrupted) |
86 | if (THREAD->interrupted) |
77 | thread_exit(); |
87 | thread_exit(); |
78 | 88 | ||
79 | #ifdef CONFIG_UDEBUG |
89 | #ifdef CONFIG_UDEBUG |
- | 90 | if (debug) { |
|
80 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true); |
91 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true); |
81 | 92 | ||
82 | /* |
93 | /* |
83 | * Stopping point needed for tasks that only invoke non-blocking |
94 | * Stopping point needed for tasks that only invoke |
84 | * system calls. |
95 | * non-blocking system calls. Not needed if the task |
- | 96 | * is not being debugged (it cannot block here). |
|
85 | */ |
97 | */ |
86 | udebug_stoppable_begin(); |
98 | udebug_stoppable_begin(); |
87 | udebug_stoppable_end(); |
99 | udebug_stoppable_end(); |
- | 100 | } |
|
88 | #endif |
101 | #endif |
89 | 102 | ||
90 | return rc; |
103 | return rc; |
91 | } |
104 | } |
92 | 105 | ||
93 | syshandler_t syscall_table[SYSCALL_END] = { |
106 | syshandler_t syscall_table[SYSCALL_END] = { |
94 | (syshandler_t) sys_klog, |
107 | (syshandler_t) sys_klog, |
95 | (syshandler_t) sys_tls_set, |
108 | (syshandler_t) sys_tls_set, |
96 | 109 | ||
97 | /* Thread and task related syscalls. */ |
110 | /* Thread and task related syscalls. */ |
98 | (syshandler_t) sys_thread_create, |
111 | (syshandler_t) sys_thread_create, |
99 | (syshandler_t) sys_thread_exit, |
112 | (syshandler_t) sys_thread_exit, |
100 | (syshandler_t) sys_thread_get_id, |
113 | (syshandler_t) sys_thread_get_id, |
101 | 114 | ||
102 | (syshandler_t) sys_task_get_id, |
115 | (syshandler_t) sys_task_get_id, |
103 | (syshandler_t) sys_task_set_name, |
116 | (syshandler_t) sys_task_set_name, |
104 | (syshandler_t) sys_program_spawn_loader, |
117 | (syshandler_t) sys_program_spawn_loader, |
105 | 118 | ||
106 | /* Synchronization related syscalls. */ |
119 | /* Synchronization related syscalls. */ |
107 | (syshandler_t) sys_futex_sleep_timeout, |
120 | (syshandler_t) sys_futex_sleep_timeout, |
108 | (syshandler_t) sys_futex_wakeup, |
121 | (syshandler_t) sys_futex_wakeup, |
109 | (syshandler_t) sys_smc_coherence, |
122 | (syshandler_t) sys_smc_coherence, |
110 | 123 | ||
111 | /* Address space related syscalls. */ |
124 | /* Address space related syscalls. */ |
112 | (syshandler_t) sys_as_area_create, |
125 | (syshandler_t) sys_as_area_create, |
113 | (syshandler_t) sys_as_area_resize, |
126 | (syshandler_t) sys_as_area_resize, |
114 | (syshandler_t) sys_as_area_change_flags, |
127 | (syshandler_t) sys_as_area_change_flags, |
115 | (syshandler_t) sys_as_area_destroy, |
128 | (syshandler_t) sys_as_area_destroy, |
116 | 129 | ||
117 | /* IPC related syscalls. */ |
130 | /* IPC related syscalls. */ |
118 | (syshandler_t) sys_ipc_call_sync_fast, |
131 | (syshandler_t) sys_ipc_call_sync_fast, |
119 | (syshandler_t) sys_ipc_call_sync_slow, |
132 | (syshandler_t) sys_ipc_call_sync_slow, |
120 | (syshandler_t) sys_ipc_call_async_fast, |
133 | (syshandler_t) sys_ipc_call_async_fast, |
121 | (syshandler_t) sys_ipc_call_async_slow, |
134 | (syshandler_t) sys_ipc_call_async_slow, |
122 | (syshandler_t) sys_ipc_answer_fast, |
135 | (syshandler_t) sys_ipc_answer_fast, |
123 | (syshandler_t) sys_ipc_answer_slow, |
136 | (syshandler_t) sys_ipc_answer_slow, |
124 | (syshandler_t) sys_ipc_forward_fast, |
137 | (syshandler_t) sys_ipc_forward_fast, |
125 | (syshandler_t) sys_ipc_forward_slow, |
138 | (syshandler_t) sys_ipc_forward_slow, |
126 | (syshandler_t) sys_ipc_wait_for_call, |
139 | (syshandler_t) sys_ipc_wait_for_call, |
127 | (syshandler_t) sys_ipc_hangup, |
140 | (syshandler_t) sys_ipc_hangup, |
128 | (syshandler_t) sys_ipc_register_irq, |
141 | (syshandler_t) sys_ipc_register_irq, |
129 | (syshandler_t) sys_ipc_unregister_irq, |
142 | (syshandler_t) sys_ipc_unregister_irq, |
130 | 143 | ||
131 | /* Event notification syscalls. */ |
144 | /* Event notification syscalls. */ |
132 | (syshandler_t) sys_event_subscribe, |
145 | (syshandler_t) sys_event_subscribe, |
133 | 146 | ||
134 | /* Capabilities related syscalls. */ |
147 | /* Capabilities related syscalls. */ |
135 | (syshandler_t) sys_cap_grant, |
148 | (syshandler_t) sys_cap_grant, |
136 | (syshandler_t) sys_cap_revoke, |
149 | (syshandler_t) sys_cap_revoke, |
137 | 150 | ||
138 | /* DDI related syscalls. */ |
151 | /* DDI related syscalls. */ |
139 | (syshandler_t) sys_device_assign_devno, |
152 | (syshandler_t) sys_device_assign_devno, |
140 | (syshandler_t) sys_physmem_map, |
153 | (syshandler_t) sys_physmem_map, |
141 | (syshandler_t) sys_iospace_enable, |
154 | (syshandler_t) sys_iospace_enable, |
142 | (syshandler_t) sys_preempt_control, |
155 | (syshandler_t) sys_preempt_control, |
143 | 156 | ||
144 | /* Sysinfo syscalls */ |
157 | /* Sysinfo syscalls */ |
145 | (syshandler_t) sys_sysinfo_valid, |
158 | (syshandler_t) sys_sysinfo_valid, |
146 | (syshandler_t) sys_sysinfo_value, |
159 | (syshandler_t) sys_sysinfo_value, |
147 | 160 | ||
148 | /* Debug calls */ |
161 | /* Debug calls */ |
149 | (syshandler_t) sys_debug_enable_console, |
162 | (syshandler_t) sys_debug_enable_console, |
150 | (syshandler_t) sys_debug_disable_console, |
163 | (syshandler_t) sys_debug_disable_console, |
151 | 164 | ||
152 | (syshandler_t) sys_ipc_connect_kbox |
165 | (syshandler_t) sys_ipc_connect_kbox |
153 | }; |
166 | }; |
154 | 167 | ||
155 | /** @} |
168 | /** @} |
156 | */ |
169 | */ |
157 | 170 |