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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 <mm/as.h> |
41 | #include <mm/as.h> |
42 | #include <print.h> |
42 | #include <print.h> |
43 | #include <putchar.h> |
43 | #include <putchar.h> |
44 | #include <errno.h> |
44 | #include <errno.h> |
45 | #include <arch.h> |
45 | #include <arch.h> |
46 | #include <debug.h> |
46 | #include <debug.h> |
- | 47 | #include <tdebug/tdebug.h> |
|
- | 48 | #include <tdebug/systdebug.h> |
|
47 | #include <ipc/sysipc.h> |
49 | #include <ipc/sysipc.h> |
48 | #include <synch/futex.h> |
50 | #include <synch/futex.h> |
49 | #include <ddi/ddi.h> |
51 | #include <ddi/ddi.h> |
50 | #include <security/cap.h> |
52 | #include <security/cap.h> |
51 | #include <syscall/copy.h> |
53 | #include <syscall/copy.h> |
52 | #include <sysinfo/sysinfo.h> |
54 | #include <sysinfo/sysinfo.h> |
53 | #include <console/console.h> |
55 | #include <console/console.h> |
54 | #include <console/klog.h> |
56 | #include <console/klog.h> |
55 | 57 | ||
56 | /** Print using kernel facility |
58 | /** Print using kernel facility |
57 | * |
59 | * |
58 | * Some simulators can print only through kernel. Userspace can use |
60 | * Some simulators can print only through kernel. Userspace can use |
59 | * this syscall to facilitate it. |
61 | * this syscall to facilitate it. |
60 | */ |
62 | */ |
61 | static unative_t sys_io(int fd, const void * buf, size_t count) |
63 | static unative_t sys_io(int fd, const void * buf, size_t count) |
62 | { |
64 | { |
63 | size_t i; |
65 | size_t i; |
64 | char *data; |
66 | char *data; |
65 | int rc; |
67 | int rc; |
66 | 68 | ||
67 | if (count > PAGE_SIZE) |
69 | if (count > PAGE_SIZE) |
68 | return ELIMIT; |
70 | return ELIMIT; |
69 | 71 | ||
70 | data = (char *) malloc(count, 0); |
72 | data = (char *) malloc(count, 0); |
71 | if (!data) |
73 | if (!data) |
72 | return ENOMEM; |
74 | return ENOMEM; |
73 | 75 | ||
74 | rc = copy_from_uspace(data, buf, count); |
76 | rc = copy_from_uspace(data, buf, count); |
75 | if (rc) { |
77 | if (rc) { |
76 | free(data); |
78 | free(data); |
77 | return rc; |
79 | return rc; |
78 | } |
80 | } |
79 | 81 | ||
80 | for (i = 0; i < count; i++) |
82 | for (i = 0; i < count; i++) |
81 | putchar(data[i]); |
83 | putchar(data[i]); |
82 | free(data); |
84 | free(data); |
83 | 85 | ||
84 | return count; |
86 | return count; |
85 | } |
87 | } |
86 | 88 | ||
87 | /** Tell kernel to get keyboard/console access again */ |
89 | /** Tell kernel to get keyboard/console access again */ |
88 | static unative_t sys_debug_enable_console(void) |
90 | static unative_t sys_debug_enable_console(void) |
89 | { |
91 | { |
90 | arch_grab_console(); |
92 | arch_grab_console(); |
91 | return 0; |
93 | return 0; |
92 | } |
94 | } |
93 | 95 | ||
94 | /** Dispatch system call */ |
96 | /** Dispatch system call */ |
95 | unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
97 | unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
96 | unative_t a4, unative_t a5, unative_t a6, unative_t id) |
98 | unative_t a4, unative_t a5, unative_t a6, unative_t id) |
97 | { |
99 | { |
98 | unative_t rc; |
100 | unative_t rc; |
99 | 101 | ||
100 | if (id < SYSCALL_END) |
102 | if (id < SYSCALL_END) |
101 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
103 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
102 | else { |
104 | else { |
103 | klog_printf("TASK %llu: Unknown syscall id %llx", TASK->taskid, |
105 | klog_printf("TASK %llu: Unknown syscall id %llx", TASK->taskid, |
104 | id); |
106 | id); |
105 | task_kill(TASK->taskid); |
107 | task_kill(TASK->taskid); |
106 | thread_exit(); |
108 | thread_exit(); |
107 | } |
109 | } |
- | 110 | ||
- | 111 | if (tdebug_have_monitor()) { |
|
- | 112 | /* generate a syscall debug event */ |
|
- | 113 | tdebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc); |
|
- | 114 | ||
- | 115 | /* a good place to stop */ |
|
- | 116 | tdebug_stopping_point(); |
|
108 | 117 | } |
|
- | 118 | ||
109 | if (THREAD->interrupted) |
119 | if (THREAD->interrupted) |
110 | thread_exit(); |
120 | thread_exit(); |
111 | 121 | ||
112 | return rc; |
122 | return rc; |
113 | } |
123 | } |
114 | 124 | ||
115 | syshandler_t syscall_table[SYSCALL_END] = { |
125 | syshandler_t syscall_table[SYSCALL_END] = { |
116 | (syshandler_t) sys_io, |
126 | (syshandler_t) sys_io, |
117 | (syshandler_t) sys_tls_set, |
127 | (syshandler_t) sys_tls_set, |
118 | 128 | ||
119 | /* Thread and task related syscalls. */ |
129 | /* Thread and task related syscalls. */ |
120 | (syshandler_t) sys_thread_create, |
130 | (syshandler_t) sys_thread_create, |
121 | (syshandler_t) sys_thread_exit, |
131 | (syshandler_t) sys_thread_exit, |
122 | (syshandler_t) sys_thread_get_id, |
132 | (syshandler_t) sys_thread_get_id, |
123 | (syshandler_t) sys_task_get_id, |
133 | (syshandler_t) sys_task_get_id, |
124 | 134 | ||
125 | /* Synchronization related syscalls. */ |
135 | /* Synchronization related syscalls. */ |
126 | (syshandler_t) sys_futex_sleep_timeout, |
136 | (syshandler_t) sys_futex_sleep_timeout, |
127 | (syshandler_t) sys_futex_wakeup, |
137 | (syshandler_t) sys_futex_wakeup, |
128 | 138 | ||
129 | /* Address space related syscalls. */ |
139 | /* Address space related syscalls. */ |
130 | (syshandler_t) sys_as_area_create, |
140 | (syshandler_t) sys_as_area_create, |
131 | (syshandler_t) sys_as_area_resize, |
141 | (syshandler_t) sys_as_area_resize, |
132 | (syshandler_t) sys_as_area_destroy, |
142 | (syshandler_t) sys_as_area_destroy, |
133 | 143 | ||
134 | /* IPC related syscalls. */ |
144 | /* IPC related syscalls. */ |
135 | (syshandler_t) sys_ipc_call_sync_fast, |
145 | (syshandler_t) sys_ipc_call_sync_fast, |
136 | (syshandler_t) sys_ipc_call_sync_slow, |
146 | (syshandler_t) sys_ipc_call_sync_slow, |
137 | (syshandler_t) sys_ipc_call_async_fast, |
147 | (syshandler_t) sys_ipc_call_async_fast, |
138 | (syshandler_t) sys_ipc_call_async_slow, |
148 | (syshandler_t) sys_ipc_call_async_slow, |
139 | (syshandler_t) sys_ipc_answer_fast, |
149 | (syshandler_t) sys_ipc_answer_fast, |
140 | (syshandler_t) sys_ipc_answer_slow, |
150 | (syshandler_t) sys_ipc_answer_slow, |
141 | (syshandler_t) sys_ipc_forward_fast, |
151 | (syshandler_t) sys_ipc_forward_fast, |
142 | (syshandler_t) sys_ipc_wait_for_call, |
152 | (syshandler_t) sys_ipc_wait_for_call, |
143 | (syshandler_t) sys_ipc_hangup, |
153 | (syshandler_t) sys_ipc_hangup, |
144 | (syshandler_t) sys_ipc_register_irq, |
154 | (syshandler_t) sys_ipc_register_irq, |
145 | (syshandler_t) sys_ipc_unregister_irq, |
155 | (syshandler_t) sys_ipc_unregister_irq, |
146 | 156 | ||
147 | /* Capabilities related syscalls. */ |
157 | /* Capabilities related syscalls. */ |
148 | (syshandler_t) sys_cap_grant, |
158 | (syshandler_t) sys_cap_grant, |
149 | (syshandler_t) sys_cap_revoke, |
159 | (syshandler_t) sys_cap_revoke, |
150 | 160 | ||
151 | /* DDI related syscalls. */ |
161 | /* DDI related syscalls. */ |
152 | (syshandler_t) sys_physmem_map, |
162 | (syshandler_t) sys_physmem_map, |
153 | (syshandler_t) sys_iospace_enable, |
163 | (syshandler_t) sys_iospace_enable, |
154 | (syshandler_t) sys_preempt_control, |
164 | (syshandler_t) sys_preempt_control, |
155 | 165 | ||
156 | /* Sysinfo syscalls */ |
166 | /* Sysinfo syscalls */ |
157 | (syshandler_t) sys_sysinfo_valid, |
167 | (syshandler_t) sys_sysinfo_valid, |
158 | (syshandler_t) sys_sysinfo_value, |
168 | (syshandler_t) sys_sysinfo_value, |
159 | 169 | ||
160 | /* Debug calls */ |
170 | /* Debug calls */ |
161 | (syshandler_t) sys_debug_enable_console |
171 | (syshandler_t) sys_debug_enable_console, |
- | 172 | ||
- | 173 | /* Task debugging calls */ |
|
- | 174 | (syshandler_t) sys_tdebug_attach_task, |
|
- | 175 | (syshandler_t) sys_tdebug_detach_task, |
|
- | 176 | (syshandler_t) sys_tdebug_continue_thread, |
|
- | 177 | (syshandler_t) sys_tdebug_get_syscall_args, |
|
- | 178 | (syshandler_t) sys_tdebug_set_event_mask, |
|
- | 179 | (syshandler_t) sys_tdebug_stop_thread, |
|
- | 180 | (syshandler_t) sys_tdebug_stop_task |
|
162 | }; |
181 | }; |
163 | 182 | ||
164 | /** @} |
183 | /** @} |
165 | */ |
184 | */ |
166 | 185 |