Rev 1597 | Rev 1705 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1597 | Rev 1702 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
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 | /** @defgroup interrupt Interrupt |
|
- | 29 | * @ingroup kernel |
|
- | 30 | * @{ |
|
- | 31 | * @} |
|
- | 32 | */ |
|
28 | 33 | ||
- | 34 | /** @addtogroup genericinterrupt generic |
|
- | 35 | * @ingroup interrupt |
|
- | 36 | * @{ |
|
- | 37 | */ |
|
29 | /** |
38 | /** |
30 | * @file interrupt.c |
39 | * @file |
31 | * @brief Interrupt redirector. |
40 | * @brief Interrupt redirector. |
32 | * |
41 | * |
33 | * This file provides means of registering interrupt handlers |
42 | * This file provides means of registering interrupt handlers |
34 | * by kernel functions and calling the handlers when interrupts |
43 | * by kernel functions and calling the handlers when interrupts |
35 | * occur. |
44 | * occur. |
36 | */ |
45 | */ |
37 | 46 | ||
38 | #include <interrupt.h> |
47 | #include <interrupt.h> |
39 | #include <debug.h> |
48 | #include <debug.h> |
40 | #include <console/kconsole.h> |
49 | #include <console/kconsole.h> |
41 | #include <console/console.h> |
50 | #include <console/console.h> |
42 | #include <console/chardev.h> |
51 | #include <console/chardev.h> |
43 | #include <console/cmd.h> |
52 | #include <console/cmd.h> |
44 | #include <panic.h> |
53 | #include <panic.h> |
45 | #include <print.h> |
54 | #include <print.h> |
46 | #include <symtab.h> |
55 | #include <symtab.h> |
47 | 56 | ||
48 | static struct { |
57 | static struct { |
49 | const char *name; |
58 | const char *name; |
50 | iroutine f; |
59 | iroutine f; |
51 | } exc_table[IVT_ITEMS]; |
60 | } exc_table[IVT_ITEMS]; |
52 | 61 | ||
53 | SPINLOCK_INITIALIZE(exctbl_lock); |
62 | SPINLOCK_INITIALIZE(exctbl_lock); |
54 | 63 | ||
55 | /** Register exception handler |
64 | /** Register exception handler |
56 | * |
65 | * |
57 | * @param n Exception number |
66 | * @param n Exception number |
58 | * @param name Description |
67 | * @param name Description |
59 | * @param f Exception handler |
68 | * @param f Exception handler |
60 | */ |
69 | */ |
61 | iroutine exc_register(int n, const char *name, iroutine f) |
70 | iroutine exc_register(int n, const char *name, iroutine f) |
62 | { |
71 | { |
63 | ASSERT(n < IVT_ITEMS); |
72 | ASSERT(n < IVT_ITEMS); |
64 | 73 | ||
65 | iroutine old; |
74 | iroutine old; |
66 | 75 | ||
67 | spinlock_lock(&exctbl_lock); |
76 | spinlock_lock(&exctbl_lock); |
68 | 77 | ||
69 | old = exc_table[n].f; |
78 | old = exc_table[n].f; |
70 | exc_table[n].f = f; |
79 | exc_table[n].f = f; |
71 | exc_table[n].name = name; |
80 | exc_table[n].name = name; |
72 | 81 | ||
73 | spinlock_unlock(&exctbl_lock); |
82 | spinlock_unlock(&exctbl_lock); |
74 | 83 | ||
75 | return old; |
84 | return old; |
76 | } |
85 | } |
77 | 86 | ||
78 | /** Dispatch exception according to exception table |
87 | /** Dispatch exception according to exception table |
79 | * |
88 | * |
80 | * Called directly from the assembler code. |
89 | * Called directly from the assembler code. |
81 | * CPU is interrupts_disable()'d. |
90 | * CPU is interrupts_disable()'d. |
82 | */ |
91 | */ |
83 | void exc_dispatch(int n, istate_t *istate) |
92 | void exc_dispatch(int n, istate_t *istate) |
84 | { |
93 | { |
85 | ASSERT(n < IVT_ITEMS); |
94 | ASSERT(n < IVT_ITEMS); |
86 | 95 | ||
87 | exc_table[n].f(n + IVT_FIRST, istate); |
96 | exc_table[n].f(n + IVT_FIRST, istate); |
88 | /* This is a safe place to exit exiting thread */ |
97 | /* This is a safe place to exit exiting thread */ |
89 | if (THREAD && THREAD->interrupted && istate_from_uspace(istate)) |
98 | if (THREAD && THREAD->interrupted && istate_from_uspace(istate)) |
90 | thread_exit(); |
99 | thread_exit(); |
91 | } |
100 | } |
92 | 101 | ||
93 | /** Default 'null' exception handler */ |
102 | /** Default 'null' exception handler */ |
94 | static void exc_undef(int n, istate_t *istate) |
103 | static void exc_undef(int n, istate_t *istate) |
95 | { |
104 | { |
96 | fault_if_from_uspace(istate, "Unhandled exception %d.", n); |
105 | fault_if_from_uspace(istate, "Unhandled exception %d.", n); |
97 | panic("Unhandled exception %d.", n); |
106 | panic("Unhandled exception %d.", n); |
98 | } |
107 | } |
99 | 108 | ||
100 | /** kconsole cmd - print all exceptions */ |
109 | /** kconsole cmd - print all exceptions */ |
101 | static int exc_print_cmd(cmd_arg_t *argv) |
110 | static int exc_print_cmd(cmd_arg_t *argv) |
102 | { |
111 | { |
103 | int i; |
112 | int i; |
104 | char *symbol; |
113 | char *symbol; |
105 | 114 | ||
106 | spinlock_lock(&exctbl_lock); |
115 | spinlock_lock(&exctbl_lock); |
107 | printf("Exc Description Handler\n"); |
116 | printf("Exc Description Handler\n"); |
108 | for (i=0; i < IVT_ITEMS; i++) { |
117 | for (i=0; i < IVT_ITEMS; i++) { |
109 | symbol = get_symtab_entry((__native)exc_table[i].f); |
118 | symbol = get_symtab_entry((__native)exc_table[i].f); |
110 | if (!symbol) |
119 | if (!symbol) |
111 | symbol = "not found"; |
120 | symbol = "not found"; |
112 | printf("%d %s %.*p(%s)\n", i + IVT_FIRST, exc_table[i].name, |
121 | printf("%d %s %.*p(%s)\n", i + IVT_FIRST, exc_table[i].name, |
113 | sizeof(__address) * 2, exc_table[i].f,symbol); |
122 | sizeof(__address) * 2, exc_table[i].f,symbol); |
114 | if (!((i+1) % 20)) { |
123 | if (!((i+1) % 20)) { |
115 | printf("Press any key to continue."); |
124 | printf("Press any key to continue."); |
116 | spinlock_unlock(&exctbl_lock); |
125 | spinlock_unlock(&exctbl_lock); |
117 | getc(stdin); |
126 | getc(stdin); |
118 | spinlock_lock(&exctbl_lock); |
127 | spinlock_lock(&exctbl_lock); |
119 | printf("\n"); |
128 | printf("\n"); |
120 | } |
129 | } |
121 | } |
130 | } |
122 | spinlock_unlock(&exctbl_lock); |
131 | spinlock_unlock(&exctbl_lock); |
123 | 132 | ||
124 | return 1; |
133 | return 1; |
125 | } |
134 | } |
126 | 135 | ||
127 | static cmd_info_t exc_info = { |
136 | static cmd_info_t exc_info = { |
128 | .name = "exc", |
137 | .name = "exc", |
129 | .description = "Print exception table.", |
138 | .description = "Print exception table.", |
130 | .func = exc_print_cmd, |
139 | .func = exc_print_cmd, |
131 | .help = NULL, |
140 | .help = NULL, |
132 | .argc = 0, |
141 | .argc = 0, |
133 | .argv = NULL |
142 | .argv = NULL |
134 | }; |
143 | }; |
135 | 144 | ||
136 | /** Initialize generic exception handling support */ |
145 | /** Initialize generic exception handling support */ |
137 | void exc_init(void) |
146 | void exc_init(void) |
138 | { |
147 | { |
139 | int i; |
148 | int i; |
140 | 149 | ||
141 | for (i=0;i < IVT_ITEMS; i++) |
150 | for (i=0;i < IVT_ITEMS; i++) |
142 | exc_register(i, "undef", (iroutine) exc_undef); |
151 | exc_register(i, "undef", (iroutine) exc_undef); |
143 | 152 | ||
144 | cmd_initialize(&exc_info); |
153 | cmd_initialize(&exc_info); |
145 | if (!cmd_register(&exc_info)) |
154 | if (!cmd_register(&exc_info)) |
146 | panic("could not register command %s\n", exc_info.name); |
155 | panic("could not register command %s\n", exc_info.name); |
147 | } |
156 | } |
148 | 157 | ||
- | 158 | ||
- | 159 | /** @} |
|
- | 160 | */ |
|
- | 161 | ||
149 | 162 |