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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
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 | #include <console/kconsole.h> |
29 | #include <console/kconsole.h> |
30 | #include <console/console.h> |
30 | #include <console/console.h> |
31 | #include <console/chardev.h> |
31 | #include <console/chardev.h> |
32 | #include <print.h> |
32 | #include <print.h> |
33 | #include <panic.h> |
33 | #include <panic.h> |
34 | #include <typedefs.h> |
34 | #include <typedefs.h> |
35 | #include <arch/types.h> |
35 | #include <arch/types.h> |
36 | #include <list.h> |
36 | #include <list.h> |
37 | #include <arch.h> |
37 | #include <arch.h> |
38 | #include <func.h> |
38 | #include <func.h> |
39 | #include <macros.h> |
39 | #include <macros.h> |
40 | #include <debug.h> |
40 | #include <debug.h> |
41 | #include <symtab.h> |
41 | #include <symtab.h> |
42 | 42 | ||
43 | #define MAX_CMDLINE 256 |
43 | #define MAX_CMDLINE 256 |
44 | 44 | ||
45 | /** Simple kernel console. |
45 | /** Simple kernel console. |
46 | * |
46 | * |
47 | * The console is realized by kernel thread kconsole. |
47 | * The console is realized by kernel thread kconsole. |
48 | * It doesn't understand any useful command on its own, |
48 | * It doesn't understand any useful command on its own, |
49 | * but makes it possible for other kernel subsystems to |
49 | * but makes it possible for other kernel subsystems to |
50 | * register their own commands. |
50 | * register their own commands. |
51 | */ |
51 | */ |
52 | 52 | ||
53 | /** Locking. |
53 | /** Locking. |
54 | * |
54 | * |
55 | * There is a list of cmd_info_t structures. This list |
55 | * There is a list of cmd_info_t structures. This list |
56 | * is protected by cmd_lock spinlock. Note that specially |
56 | * is protected by cmd_lock spinlock. Note that specially |
57 | * the link elements of cmd_info_t are protected by |
57 | * the link elements of cmd_info_t are protected by |
58 | * this lock. |
58 | * this lock. |
59 | * |
59 | * |
60 | * Each cmd_info_t also has its own lock, which protects |
60 | * Each cmd_info_t also has its own lock, which protects |
61 | * all elements thereof except the link element. |
61 | * all elements thereof except the link element. |
62 | * |
62 | * |
63 | * cmd_lock must be acquired before any cmd_info lock. |
63 | * cmd_lock must be acquired before any cmd_info lock. |
64 | * When locking two cmd info structures, structure with |
64 | * When locking two cmd info structures, structure with |
65 | * lower address must be locked first. |
65 | * lower address must be locked first. |
66 | */ |
66 | */ |
67 | 67 | ||
68 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
68 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
69 | link_t cmd_head; /**< Command list. */ |
69 | link_t cmd_head; /**< Command list. */ |
70 | 70 | ||
71 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
71 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
72 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
72 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
73 | 73 | ||
74 | /** Data and methods for 'help' command. */ |
74 | /** Data and methods for 'help' command. */ |
75 | static int cmd_help(cmd_arg_t *argv); |
75 | static int cmd_help(cmd_arg_t *argv); |
76 | static cmd_info_t help_info = { |
76 | static cmd_info_t help_info = { |
77 | .name = "help", |
77 | .name = "help", |
78 | .description = "List of supported commands.", |
78 | .description = "List of supported commands.", |
79 | .func = cmd_help, |
79 | .func = cmd_help, |
80 | .argc = 0 |
80 | .argc = 0 |
81 | }; |
81 | }; |
82 | 82 | ||
83 | /** Data and methods for 'description' command. */ |
83 | /** Data and methods for 'description' command. */ |
84 | static int cmd_desc(cmd_arg_t *argv); |
84 | static int cmd_desc(cmd_arg_t *argv); |
85 | static void desc_help(void); |
85 | static void desc_help(void); |
86 | static char desc_buf[MAX_CMDLINE+1]; |
86 | static char desc_buf[MAX_CMDLINE+1]; |
87 | static cmd_arg_t desc_argv = { |
87 | static cmd_arg_t desc_argv = { |
88 | .type = ARG_TYPE_STRING, |
88 | .type = ARG_TYPE_STRING, |
89 | .buffer = desc_buf, |
89 | .buffer = desc_buf, |
90 | .len = sizeof(desc_buf) |
90 | .len = sizeof(desc_buf) |
91 | }; |
91 | }; |
92 | static cmd_info_t desc_info = { |
92 | static cmd_info_t desc_info = { |
93 | .name = "describe", |
93 | .name = "describe", |
94 | .description = "Describe specified command.", |
94 | .description = "Describe specified command.", |
95 | .help = desc_help, |
95 | .help = desc_help, |
96 | .func = cmd_desc, |
96 | .func = cmd_desc, |
97 | .argc = 1, |
97 | .argc = 1, |
98 | .argv = &desc_argv |
98 | .argv = &desc_argv |
99 | }; |
99 | }; |
100 | 100 | ||
101 | /** Data and methods for 'symaddr' command. */ |
101 | /** Data and methods for 'symaddr' command. */ |
102 | static int cmd_symaddr(cmd_arg_t *argv); |
102 | static int cmd_symaddr(cmd_arg_t *argv); |
103 | static char symaddr_buf[MAX_CMDLINE+1]; |
103 | static char symaddr_buf[MAX_CMDLINE+1]; |
104 | static cmd_arg_t symaddr_argv = { |
104 | static cmd_arg_t symaddr_argv = { |
105 | .type = ARG_TYPE_STRING, |
105 | .type = ARG_TYPE_STRING, |
106 | .buffer = symaddr_buf, |
106 | .buffer = symaddr_buf, |
107 | .len = sizeof(symaddr_buf) |
107 | .len = sizeof(symaddr_buf) |
108 | }; |
108 | }; |
109 | static cmd_info_t symaddr_info = { |
109 | static cmd_info_t symaddr_info = { |
110 | .name = "symaddr", |
110 | .name = "symaddr", |
111 | .description = "Return symbol address.", |
111 | .description = "Return symbol address.", |
112 | .func = cmd_symaddr, |
112 | .func = cmd_symaddr, |
113 | .argc = 1, |
113 | .argc = 1, |
114 | .argv = &symaddr_argv |
114 | .argv = &symaddr_argv |
115 | }; |
115 | }; |
116 | 116 | ||
117 | /** Call0 - call function with no parameters */ |
117 | /** Call0 - call function with no parameters */ |
118 | static char call0_buf[MAX_CMDLINE+1]; |
118 | static char call0_buf[MAX_CMDLINE+1]; |
- | 119 | static char carg1_buf[MAX_CMDLINE+1]; |
|
- | 120 | static char carg2_buf[MAX_CMDLINE+1]; |
|
119 | 121 | ||
120 | static int cmd_call0(cmd_arg_t *argv); |
122 | static int cmd_call0(cmd_arg_t *argv); |
121 | static cmd_arg_t call0_argv = { |
123 | static cmd_arg_t call0_argv = { |
122 | .type = ARG_TYPE_STRING, |
124 | .type = ARG_TYPE_STRING, |
123 | .buffer = call0_buf, |
125 | .buffer = call0_buf, |
124 | .len = sizeof(call0_buf) |
126 | .len = sizeof(call0_buf) |
125 | }; |
127 | }; |
126 | static cmd_info_t call0_info = { |
128 | static cmd_info_t call0_info = { |
127 | .name = "call0", |
129 | .name = "call0", |
128 | .description = "call0 <function> -> call function().", |
130 | .description = "call0 <function> -> call function().", |
129 | .func = cmd_call0, |
131 | .func = cmd_call0, |
130 | .argc = 1, |
132 | .argc = 1, |
131 | .argv = &call0_argv |
133 | .argv = &call0_argv |
132 | }; |
134 | }; |
133 | 135 | ||
134 | static int cmd_call1(cmd_arg_t *argv); |
136 | static int cmd_call1(cmd_arg_t *argv); |
135 | static cmd_arg_t call1_argv[] = { |
137 | static cmd_arg_t call1_argv[] = { |
136 | { |
138 | { |
137 | .type = ARG_TYPE_STRING, |
139 | .type = ARG_TYPE_STRING, |
138 | .buffer = call0_buf, |
140 | .buffer = call0_buf, |
139 | .len = sizeof(call0_buf) |
141 | .len = sizeof(call0_buf) |
140 | }, |
142 | }, |
- | 143 | { |
|
141 | { .type = ARG_TYPE_INT } |
144 | .type = ARG_TYPE_VAR, |
- | 145 | .buffer = carg1_buf, |
|
- | 146 | .len = sizeof(carg1_buf) |
|
- | 147 | } |
|
142 | }; |
148 | }; |
143 | static cmd_info_t call1_info = { |
149 | static cmd_info_t call1_info = { |
144 | .name = "call1", |
150 | .name = "call1", |
145 | .description = "call1 <function> <arg1> -> call function(arg1).", |
151 | .description = "call1 <function> <arg1> -> call function(arg1).", |
146 | .func = cmd_call1, |
152 | .func = cmd_call1, |
147 | .argc = 2, |
153 | .argc = 2, |
148 | .argv = call1_argv |
154 | .argv = call1_argv |
149 | }; |
155 | }; |
150 | 156 | ||
151 | static int cmd_call2(cmd_arg_t *argv); |
157 | static int cmd_call2(cmd_arg_t *argv); |
152 | static cmd_arg_t call2_argv[] = { |
158 | static cmd_arg_t call2_argv[] = { |
153 | { |
159 | { |
154 | .type = ARG_TYPE_STRING, |
160 | .type = ARG_TYPE_STRING, |
155 | .buffer = call0_buf, |
161 | .buffer = call0_buf, |
156 | .len = sizeof(call0_buf) |
162 | .len = sizeof(call0_buf) |
157 | }, |
163 | }, |
- | 164 | { |
|
158 | { .type = ARG_TYPE_INT }, |
165 | .type = ARG_TYPE_VAR, |
- | 166 | .buffer = carg1_buf, |
|
- | 167 | .len = sizeof(carg1_buf) |
|
- | 168 | }, |
|
- | 169 | { |
|
159 | { .type = ARG_TYPE_INT } |
170 | .type = ARG_TYPE_VAR, |
- | 171 | .buffer = carg2_buf, |
|
- | 172 | .len = sizeof(carg2_buf) |
|
- | 173 | } |
|
160 | }; |
174 | }; |
161 | static cmd_info_t call2_info = { |
175 | static cmd_info_t call2_info = { |
162 | .name = "call2", |
176 | .name = "call2", |
163 | .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).", |
177 | .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).", |
164 | .func = cmd_call2, |
178 | .func = cmd_call2, |
165 | .argc = 3, |
179 | .argc = 3, |
166 | .argv = call2_argv |
180 | .argv = call2_argv |
167 | }; |
181 | }; |
168 | 182 | ||
169 | 183 | ||
170 | /** Data and methods for 'halt' command. */ |
184 | /** Data and methods for 'halt' command. */ |
171 | static int cmd_halt(cmd_arg_t *argv); |
185 | static int cmd_halt(cmd_arg_t *argv); |
172 | static cmd_info_t halt_info = { |
186 | static cmd_info_t halt_info = { |
173 | .name = "halt", |
187 | .name = "halt", |
174 | .description = "Halt the kernel.", |
188 | .description = "Halt the kernel.", |
175 | .func = cmd_halt, |
189 | .func = cmd_halt, |
176 | .argc = 0 |
190 | .argc = 0 |
177 | }; |
191 | }; |
178 | 192 | ||
179 | /** Initialize kconsole data structures. */ |
193 | /** Initialize kconsole data structures. */ |
180 | void kconsole_init(void) |
194 | void kconsole_init(void) |
181 | { |
195 | { |
182 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
196 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
183 | list_initialize(&cmd_head); |
197 | list_initialize(&cmd_head); |
184 | 198 | ||
185 | spinlock_initialize(&help_info.lock, "kconsole_help"); |
199 | spinlock_initialize(&help_info.lock, "kconsole_help"); |
186 | link_initialize(&help_info.link); |
200 | link_initialize(&help_info.link); |
187 | if (!cmd_register(&help_info)) |
201 | if (!cmd_register(&help_info)) |
188 | panic("could not register command %s\n", help_info.name); |
202 | panic("could not register command %s\n", help_info.name); |
189 | 203 | ||
190 | 204 | ||
191 | spinlock_initialize(&desc_info.lock, "kconsole_desc"); |
205 | spinlock_initialize(&desc_info.lock, "kconsole_desc"); |
192 | link_initialize(&desc_info.link); |
206 | link_initialize(&desc_info.link); |
193 | if (!cmd_register(&desc_info)) |
207 | if (!cmd_register(&desc_info)) |
194 | panic("could not register command %s\n", desc_info.name); |
208 | panic("could not register command %s\n", desc_info.name); |
195 | 209 | ||
196 | spinlock_initialize(&symaddr_info.lock, "kconsole_symaddr"); |
210 | spinlock_initialize(&symaddr_info.lock, "kconsole_symaddr"); |
197 | link_initialize(&symaddr_info.link); |
211 | link_initialize(&symaddr_info.link); |
198 | if (!cmd_register(&symaddr_info)) |
212 | if (!cmd_register(&symaddr_info)) |
199 | panic("could not register command %s\n", symaddr_info.name); |
213 | panic("could not register command %s\n", symaddr_info.name); |
200 | 214 | ||
201 | spinlock_initialize(&call0_info.lock, "kconsole_call0"); |
215 | spinlock_initialize(&call0_info.lock, "kconsole_call0"); |
202 | link_initialize(&call0_info.link); |
216 | link_initialize(&call0_info.link); |
203 | if (!cmd_register(&call0_info)) |
217 | if (!cmd_register(&call0_info)) |
204 | panic("could not register command %s\n", call0_info.name); |
218 | panic("could not register command %s\n", call0_info.name); |
205 | 219 | ||
206 | spinlock_initialize(&call1_info.lock, "kconsole_call1"); |
220 | spinlock_initialize(&call1_info.lock, "kconsole_call1"); |
207 | link_initialize(&call1_info.link); |
221 | link_initialize(&call1_info.link); |
208 | if (!cmd_register(&call1_info)) |
222 | if (!cmd_register(&call1_info)) |
209 | panic("could not register command %s\n", call1_info.name); |
223 | panic("could not register command %s\n", call1_info.name); |
210 | 224 | ||
211 | 225 | ||
212 | spinlock_initialize(&call2_info.lock, "kconsole_call2"); |
226 | spinlock_initialize(&call2_info.lock, "kconsole_call2"); |
213 | link_initialize(&call2_info.link); |
227 | link_initialize(&call2_info.link); |
214 | if (!cmd_register(&call2_info)) |
228 | if (!cmd_register(&call2_info)) |
215 | panic("could not register command %s\n", call2_info.name); |
229 | panic("could not register command %s\n", call2_info.name); |
216 | 230 | ||
217 | spinlock_initialize(&halt_info.lock, "kconsole_halt"); |
231 | spinlock_initialize(&halt_info.lock, "kconsole_halt"); |
218 | link_initialize(&halt_info.link); |
232 | link_initialize(&halt_info.link); |
219 | if (!cmd_register(&halt_info)) |
233 | if (!cmd_register(&halt_info)) |
220 | panic("could not register command %s\n", halt_info.name); |
234 | panic("could not register command %s\n", halt_info.name); |
221 | } |
235 | } |
222 | 236 | ||
223 | 237 | ||
224 | /** Register kconsole command. |
238 | /** Register kconsole command. |
225 | * |
239 | * |
226 | * @param cmd Structure describing the command. |
240 | * @param cmd Structure describing the command. |
227 | * |
241 | * |
228 | * @return 0 on failure, 1 on success. |
242 | * @return 0 on failure, 1 on success. |
229 | */ |
243 | */ |
230 | int cmd_register(cmd_info_t *cmd) |
244 | int cmd_register(cmd_info_t *cmd) |
231 | { |
245 | { |
232 | ipl_t ipl; |
246 | ipl_t ipl; |
233 | link_t *cur; |
247 | link_t *cur; |
234 | 248 | ||
235 | spinlock_lock(&cmd_lock); |
249 | spinlock_lock(&cmd_lock); |
236 | 250 | ||
237 | /* |
251 | /* |
238 | * Make sure the command is not already listed. |
252 | * Make sure the command is not already listed. |
239 | */ |
253 | */ |
240 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
254 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
241 | cmd_info_t *hlp; |
255 | cmd_info_t *hlp; |
242 | 256 | ||
243 | hlp = list_get_instance(cur, cmd_info_t, link); |
257 | hlp = list_get_instance(cur, cmd_info_t, link); |
244 | 258 | ||
245 | if (hlp == cmd) { |
259 | if (hlp == cmd) { |
246 | /* The command is already there. */ |
260 | /* The command is already there. */ |
247 | spinlock_unlock(&cmd_lock); |
261 | spinlock_unlock(&cmd_lock); |
248 | return 0; |
262 | return 0; |
249 | } |
263 | } |
250 | 264 | ||
251 | /* Avoid deadlock. */ |
265 | /* Avoid deadlock. */ |
252 | if (hlp < cmd) { |
266 | if (hlp < cmd) { |
253 | spinlock_lock(&hlp->lock); |
267 | spinlock_lock(&hlp->lock); |
254 | spinlock_lock(&cmd->lock); |
268 | spinlock_lock(&cmd->lock); |
255 | } else { |
269 | } else { |
256 | spinlock_lock(&cmd->lock); |
270 | spinlock_lock(&cmd->lock); |
257 | spinlock_lock(&hlp->lock); |
271 | spinlock_lock(&hlp->lock); |
258 | } |
272 | } |
259 | 273 | ||
260 | if ((strncmp(hlp->name, cmd->name, strlen(cmd->name)) == 0)) { |
274 | if ((strncmp(hlp->name, cmd->name, strlen(cmd->name)) == 0)) { |
261 | /* The command is already there. */ |
275 | /* The command is already there. */ |
262 | spinlock_unlock(&hlp->lock); |
276 | spinlock_unlock(&hlp->lock); |
263 | spinlock_unlock(&cmd->lock); |
277 | spinlock_unlock(&cmd->lock); |
264 | spinlock_unlock(&cmd_lock); |
278 | spinlock_unlock(&cmd_lock); |
265 | return 0; |
279 | return 0; |
266 | } |
280 | } |
267 | 281 | ||
268 | spinlock_unlock(&hlp->lock); |
282 | spinlock_unlock(&hlp->lock); |
269 | spinlock_unlock(&cmd->lock); |
283 | spinlock_unlock(&cmd->lock); |
270 | } |
284 | } |
271 | 285 | ||
272 | /* |
286 | /* |
273 | * Now the command can be added. |
287 | * Now the command can be added. |
274 | */ |
288 | */ |
275 | list_append(&cmd->link, &cmd_head); |
289 | list_append(&cmd->link, &cmd_head); |
276 | 290 | ||
277 | spinlock_unlock(&cmd_lock); |
291 | spinlock_unlock(&cmd_lock); |
278 | return 1; |
292 | return 1; |
279 | } |
293 | } |
280 | 294 | ||
281 | /** Kernel console managing thread. |
295 | /** Kernel console managing thread. |
282 | * |
296 | * |
283 | * @param arg Not used. |
297 | * @param arg Not used. |
284 | */ |
298 | */ |
285 | void kconsole(void *arg) |
299 | void kconsole(void *arg) |
286 | { |
300 | { |
287 | char cmdline[MAX_CMDLINE+1]; |
301 | char cmdline[MAX_CMDLINE+1]; |
288 | cmd_info_t *cmd_info; |
302 | cmd_info_t *cmd_info; |
289 | count_t len; |
303 | count_t len; |
290 | 304 | ||
291 | if (!stdin) { |
305 | if (!stdin) { |
292 | printf("%s: no stdin\n", __FUNCTION__); |
306 | printf("%s: no stdin\n", __FUNCTION__); |
293 | return; |
307 | return; |
294 | } |
308 | } |
295 | 309 | ||
296 | while (true) { |
310 | while (true) { |
297 | printf("%s> ", __FUNCTION__); |
311 | printf("%s> ", __FUNCTION__); |
298 | if (!(len = gets(stdin, cmdline, sizeof(cmdline)))) |
312 | if (!(len = gets(stdin, cmdline, sizeof(cmdline)))) |
299 | continue; |
313 | continue; |
300 | cmdline[len] = '\0'; |
314 | cmdline[len] = '\0'; |
301 | cmd_info = parse_cmdline(cmdline, len); |
315 | cmd_info = parse_cmdline(cmdline, len); |
302 | if (!cmd_info) |
316 | if (!cmd_info) |
303 | continue; |
317 | continue; |
304 | (void) cmd_info->func(cmd_info->argv); |
318 | (void) cmd_info->func(cmd_info->argv); |
305 | } |
319 | } |
306 | } |
320 | } |
307 | 321 | ||
- | 322 | static int parse_int_arg(char *text, size_t len, __native *result) |
|
- | 323 | { |
|
- | 324 | char symname[MAX_SYMBOL_NAME]; |
|
- | 325 | __address symaddr; |
|
- | 326 | bool isaddr = false; |
|
- | 327 | ||
- | 328 | /* If we get a name, try to find it in symbol table */ |
|
- | 329 | if (text[0] < '0' | text[0] > '9') { |
|
- | 330 | if (text[0] == '&') { |
|
- | 331 | isaddr = true; |
|
- | 332 | text++;len--; |
|
- | 333 | } |
|
- | 334 | strncpy(symname, text, min(len+1, MAX_SYMBOL_NAME)); |
|
- | 335 | symaddr = get_symbol_addr(symname); |
|
- | 336 | if (!symaddr) { |
|
- | 337 | printf("Symbol %s not found.\n",symname); |
|
- | 338 | return -1; |
|
- | 339 | } |
|
- | 340 | if (symaddr == (__address) -1) { |
|
- | 341 | printf("Duplicate symbol %s.\n",symname); |
|
- | 342 | symtab_print_search(symname); |
|
- | 343 | return -1; |
|
- | 344 | } |
|
- | 345 | if (isaddr) |
|
- | 346 | *result = (__native)symaddr; |
|
- | 347 | else |
|
- | 348 | *result = *((__native *)symaddr); |
|
- | 349 | } else /* It's a number - convert it */ |
|
- | 350 | *result = atoi(text); |
|
- | 351 | return 0; |
|
- | 352 | } |
|
- | 353 | ||
308 | /** Parse command line. |
354 | /** Parse command line. |
309 | * |
355 | * |
310 | * @param cmdline Command line as read from input device. |
356 | * @param cmdline Command line as read from input device. |
311 | * @param len Command line length. |
357 | * @param len Command line length. |
312 | * |
358 | * |
313 | * @return Structure describing the command. |
359 | * @return Structure describing the command. |
314 | */ |
360 | */ |
315 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
361 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
316 | { |
362 | { |
317 | index_t start = 0, end = 0; |
363 | index_t start = 0, end = 0; |
318 | cmd_info_t *cmd = NULL; |
364 | cmd_info_t *cmd = NULL; |
319 | link_t *cur; |
365 | link_t *cur; |
320 | ipl_t ipl; |
366 | ipl_t ipl; |
321 | int i; |
367 | int i; |
322 | 368 | ||
323 | if (!parse_argument(cmdline, len, &start, &end)) { |
369 | if (!parse_argument(cmdline, len, &start, &end)) { |
324 | /* Command line did not contain alphanumeric word. */ |
370 | /* Command line did not contain alphanumeric word. */ |
325 | return NULL; |
371 | return NULL; |
326 | } |
372 | } |
327 | 373 | ||
328 | spinlock_lock(&cmd_lock); |
374 | spinlock_lock(&cmd_lock); |
329 | 375 | ||
330 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
376 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
331 | cmd_info_t *hlp; |
377 | cmd_info_t *hlp; |
332 | 378 | ||
333 | hlp = list_get_instance(cur, cmd_info_t, link); |
379 | hlp = list_get_instance(cur, cmd_info_t, link); |
334 | spinlock_lock(&hlp->lock); |
380 | spinlock_lock(&hlp->lock); |
335 | 381 | ||
336 | if (strncmp(hlp->name, &cmdline[start], (end - start) + 1) == 0) { |
382 | if (strncmp(hlp->name, &cmdline[start], (end - start) + 1) == 0) { |
337 | cmd = hlp; |
383 | cmd = hlp; |
338 | break; |
384 | break; |
339 | } |
385 | } |
340 | 386 | ||
341 | spinlock_unlock(&hlp->lock); |
387 | spinlock_unlock(&hlp->lock); |
342 | } |
388 | } |
343 | 389 | ||
344 | spinlock_unlock(&cmd_lock); |
390 | spinlock_unlock(&cmd_lock); |
345 | 391 | ||
346 | if (!cmd) { |
392 | if (!cmd) { |
347 | /* Unknown command. */ |
393 | /* Unknown command. */ |
348 | printf("Unknown command.\n"); |
394 | printf("Unknown command.\n"); |
349 | return NULL; |
395 | return NULL; |
350 | } |
396 | } |
351 | 397 | ||
352 | /* cmd == hlp is locked */ |
398 | /* cmd == hlp is locked */ |
353 | 399 | ||
354 | /* |
400 | /* |
355 | * The command line must be further analyzed and |
401 | * The command line must be further analyzed and |
356 | * the parameters therefrom must be matched and |
402 | * the parameters therefrom must be matched and |
357 | * converted to those specified in the cmd info |
403 | * converted to those specified in the cmd info |
358 | * structure. |
404 | * structure. |
359 | */ |
405 | */ |
360 | 406 | ||
361 | for (i = 0; i < cmd->argc; i++) { |
407 | for (i = 0; i < cmd->argc; i++) { |
362 | char *buf; |
408 | char *buf; |
363 | start = end + 1; |
409 | start = end + 1; |
364 | if (!parse_argument(cmdline, len, &start, &end)) { |
410 | if (!parse_argument(cmdline, len, &start, &end)) { |
365 | printf("Too few arguments.\n"); |
411 | printf("Too few arguments.\n"); |
366 | spinlock_unlock(&cmd->lock); |
412 | spinlock_unlock(&cmd->lock); |
367 | return NULL; |
413 | return NULL; |
368 | } |
414 | } |
369 | 415 | ||
370 | switch (cmd->argv[i].type) { |
416 | switch (cmd->argv[i].type) { |
371 | case ARG_TYPE_STRING: |
417 | case ARG_TYPE_STRING: |
372 | buf = cmd->argv[i].buffer; |
418 | buf = cmd->argv[i].buffer; |
373 | strncpy(buf, (const char *) &cmdline[start], min((end - start) + 1, cmd->argv[i].len - 1)); |
419 | strncpy(buf, (const char *) &cmdline[start], min((end - start) + 2, cmd->argv[i].len)); |
374 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = '\0'; |
420 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = '\0'; |
375 | break; |
421 | break; |
376 | case ARG_TYPE_INT: { |
422 | case ARG_TYPE_INT: |
377 | char symname[MAX_SYMBOL_NAME]; |
- | |
378 | __address symaddr; |
- | |
379 | - | ||
380 | /* If we get a name, try to find it in symbol table */ |
- | |
381 | if (cmdline[start] < '0' | cmdline[start] > '9') { |
423 | if (parse_int_arg(cmdline+start, end-start+1, |
382 | strncpy(symname, cmdline+start, min((end-start) + 1, MAX_SYMBOL_NAME -1 )); |
- | |
383 | symaddr = get_symbol_addr(symname); |
- | |
384 | if (!symaddr) { |
- | |
385 | printf("Symbol %s not found.\n",symname); |
- | |
386 | return NULL; |
- | |
387 | } |
- | |
388 | if (symaddr == (__address) -1) { |
424 | &cmd->argv[i].intval)) |
389 | printf("Duplicate symbol %s.\n",symname); |
- | |
390 | symtab_print_search(symname); |
- | |
391 | return NULL; |
425 | return NULL; |
392 | } |
- | |
393 | cmd->argv[i].intval = *((__native *)symaddr); |
- | |
394 | } else /* It's a number - convert it */ |
- | |
395 | cmd->argv[i].intval = atoi(cmdline+start); |
- | |
396 | break; |
426 | break; |
- | 427 | case ARG_TYPE_VAR: |
|
- | 428 | if (start != end && cmdline[start] == '"' && cmdline[end] == '"') { |
|
- | 429 | buf = cmd->argv[i].buffer; |
|
- | 430 | strncpy(buf, (const char *) &cmdline[start+1], |
|
- | 431 | min((end-start), cmd->argv[i].len)); |
|
- | 432 | buf[min((end - start), cmd->argv[i].len - 1)] = '\0'; |
|
- | 433 | cmd->argv[i].intval = (__native) buf; |
|
- | 434 | cmd->argv[i].vartype = ARG_TYPE_STRING; |
|
- | 435 | } else if (!parse_int_arg(cmdline+start, end-start+1, |
|
- | 436 | &cmd->argv[i].intval)) |
|
- | 437 | cmd->argv[i].vartype = ARG_TYPE_INT; |
|
- | 438 | else { |
|
- | 439 | printf("Unrecognized variable argument.\n"); |
|
- | 440 | return NULL; |
|
397 | } |
441 | } |
- | 442 | break; |
|
398 | case ARG_TYPE_INVALID: |
443 | case ARG_TYPE_INVALID: |
399 | default: |
444 | default: |
400 | printf("invalid argument type\n"); |
445 | printf("invalid argument type\n"); |
401 | return NULL; |
446 | return NULL; |
402 | break; |
447 | break; |
403 | } |
448 | } |
404 | } |
449 | } |
405 | 450 | ||
406 | start = end + 1; |
451 | start = end + 1; |
407 | if (parse_argument(cmdline, len, &start, &end)) { |
452 | if (parse_argument(cmdline, len, &start, &end)) { |
408 | printf("Too many arguments.\n"); |
453 | printf("Too many arguments.\n"); |
409 | spinlock_unlock(&cmd->lock); |
454 | spinlock_unlock(&cmd->lock); |
410 | return NULL; |
455 | return NULL; |
411 | } |
456 | } |
412 | 457 | ||
413 | spinlock_unlock(&cmd->lock); |
458 | spinlock_unlock(&cmd->lock); |
414 | return cmd; |
459 | return cmd; |
415 | } |
460 | } |
416 | 461 | ||
417 | /** Parse argument. |
462 | /** Parse argument. |
418 | * |
463 | * |
419 | * Find start and end positions of command line argument. |
464 | * Find start and end positions of command line argument. |
420 | * |
465 | * |
421 | * @param cmdline Command line as read from the input device. |
466 | * @param cmdline Command line as read from the input device. |
422 | * @param len Number of characters in cmdline. |
467 | * @param len Number of characters in cmdline. |
423 | * @param start On entry, 'start' contains pointer to the index |
468 | * @param start On entry, 'start' contains pointer to the index |
424 | * of first unprocessed character of cmdline. |
469 | * of first unprocessed character of cmdline. |
425 | * On successful exit, it marks beginning of the next argument. |
470 | * On successful exit, it marks beginning of the next argument. |
426 | * @param end Undefined on entry. On exit, 'end' points to the last character |
471 | * @param end Undefined on entry. On exit, 'end' points to the last character |
427 | * of the next argument. |
472 | * of the next argument. |
428 | * |
473 | * |
429 | * @return false on failure, true on success. |
474 | * @return false on failure, true on success. |
430 | */ |
475 | */ |
431 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
476 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
432 | { |
477 | { |
433 | int i; |
478 | int i; |
434 | bool found_start = false; |
479 | bool found_start = false; |
435 | 480 | ||
436 | ASSERT(start != NULL); |
481 | ASSERT(start != NULL); |
437 | ASSERT(end != NULL); |
482 | ASSERT(end != NULL); |
438 | 483 | ||
439 | for (i = *start; i < len; i++) { |
484 | for (i = *start; i < len; i++) { |
440 | if (!found_start) { |
485 | if (!found_start) { |
441 | if (is_white(cmdline[i])) |
486 | if (is_white(cmdline[i])) |
442 | (*start)++; |
487 | (*start)++; |
443 | else |
488 | else |
444 | found_start = true; |
489 | found_start = true; |
445 | } else { |
490 | } else { |
446 | if (is_white(cmdline[i])) |
491 | if (is_white(cmdline[i])) |
447 | break; |
492 | break; |
448 | } |
493 | } |
449 | } |
494 | } |
450 | *end = i - 1; |
495 | *end = i - 1; |
451 | 496 | ||
452 | return found_start; |
497 | return found_start; |
453 | } |
498 | } |
454 | 499 | ||
455 | 500 | ||
456 | /** List supported commands. |
501 | /** List supported commands. |
457 | * |
502 | * |
458 | * @param argv Argument vector. |
503 | * @param argv Argument vector. |
459 | * |
504 | * |
460 | * @return 0 on failure, 1 on success. |
505 | * @return 0 on failure, 1 on success. |
461 | */ |
506 | */ |
462 | int cmd_help(cmd_arg_t *argv) |
507 | int cmd_help(cmd_arg_t *argv) |
463 | { |
508 | { |
464 | link_t *cur; |
509 | link_t *cur; |
465 | ipl_t ipl; |
510 | ipl_t ipl; |
466 | 511 | ||
467 | spinlock_lock(&cmd_lock); |
512 | spinlock_lock(&cmd_lock); |
468 | 513 | ||
469 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
514 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
470 | cmd_info_t *hlp; |
515 | cmd_info_t *hlp; |
471 | 516 | ||
472 | hlp = list_get_instance(cur, cmd_info_t, link); |
517 | hlp = list_get_instance(cur, cmd_info_t, link); |
473 | spinlock_lock(&hlp->lock); |
518 | spinlock_lock(&hlp->lock); |
474 | 519 | ||
475 | printf("%s - %s\n", hlp->name, hlp->description); |
520 | printf("%s - %s\n", hlp->name, hlp->description); |
476 | 521 | ||
477 | spinlock_unlock(&hlp->lock); |
522 | spinlock_unlock(&hlp->lock); |
478 | } |
523 | } |
479 | 524 | ||
480 | spinlock_unlock(&cmd_lock); |
525 | spinlock_unlock(&cmd_lock); |
481 | 526 | ||
482 | return 1; |
527 | return 1; |
483 | } |
528 | } |
484 | 529 | ||
485 | /** Describe specified command. |
530 | /** Describe specified command. |
486 | * |
531 | * |
487 | * @param argv Argument vector. |
532 | * @param argv Argument vector. |
488 | * |
533 | * |
489 | * @return 0 on failure, 1 on success. |
534 | * @return 0 on failure, 1 on success. |
490 | */ |
535 | */ |
491 | int cmd_desc(cmd_arg_t *argv) |
536 | int cmd_desc(cmd_arg_t *argv) |
492 | { |
537 | { |
493 | link_t *cur; |
538 | link_t *cur; |
494 | ipl_t ipl; |
539 | ipl_t ipl; |
495 | 540 | ||
496 | spinlock_lock(&cmd_lock); |
541 | spinlock_lock(&cmd_lock); |
497 | 542 | ||
498 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
543 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
499 | cmd_info_t *hlp; |
544 | cmd_info_t *hlp; |
500 | 545 | ||
501 | hlp = list_get_instance(cur, cmd_info_t, link); |
546 | hlp = list_get_instance(cur, cmd_info_t, link); |
502 | spinlock_lock(&hlp->lock); |
547 | spinlock_lock(&hlp->lock); |
503 | 548 | ||
504 | if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) { |
549 | if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) { |
505 | printf("%s - %s\n", hlp->name, hlp->description); |
550 | printf("%s - %s\n", hlp->name, hlp->description); |
506 | if (hlp->help) |
551 | if (hlp->help) |
507 | hlp->help(); |
552 | hlp->help(); |
508 | spinlock_unlock(&hlp->lock); |
553 | spinlock_unlock(&hlp->lock); |
509 | break; |
554 | break; |
510 | } |
555 | } |
511 | 556 | ||
512 | spinlock_unlock(&hlp->lock); |
557 | spinlock_unlock(&hlp->lock); |
513 | } |
558 | } |
514 | 559 | ||
515 | spinlock_unlock(&cmd_lock); |
560 | spinlock_unlock(&cmd_lock); |
516 | 561 | ||
517 | return 1; |
562 | return 1; |
518 | } |
563 | } |
519 | 564 | ||
520 | /** Search symbol table */ |
565 | /** Search symbol table */ |
521 | int cmd_symaddr(cmd_arg_t *argv) |
566 | int cmd_symaddr(cmd_arg_t *argv) |
522 | { |
567 | { |
523 | __address symaddr; |
568 | __address symaddr; |
524 | char *symbol; |
569 | char *symbol; |
525 | 570 | ||
526 | symtab_print_search(argv->buffer); |
571 | symtab_print_search(argv->buffer); |
527 | 572 | ||
528 | return 1; |
573 | return 1; |
529 | } |
574 | } |
530 | 575 | ||
531 | /** Call function with zero parameters */ |
576 | /** Call function with zero parameters */ |
532 | int cmd_call0(cmd_arg_t *argv) |
577 | int cmd_call0(cmd_arg_t *argv) |
533 | { |
578 | { |
534 | __address symaddr; |
579 | __address symaddr; |
535 | char *symbol; |
580 | char *symbol; |
536 | __native (*f)(void); |
581 | __native (*f)(void); |
537 | 582 | ||
538 | symaddr = get_symbol_addr(argv->buffer); |
583 | symaddr = get_symbol_addr(argv->buffer); |
539 | if (!symaddr) |
584 | if (!symaddr) |
540 | printf("Symbol not found.\n"); |
585 | printf("Symbol %s not found.\n", argv->buffer); |
541 | else if (symaddr == (__address) -1) { |
586 | else if (symaddr == (__address) -1) { |
542 | symtab_print_search(argv->buffer); |
587 | symtab_print_search(argv->buffer); |
543 | printf("Duplicate symbol, be more specific.\n"); |
588 | printf("Duplicate symbol, be more specific.\n"); |
544 | } else { |
589 | } else { |
545 | symbol = get_symtab_entry(symaddr); |
590 | symbol = get_symtab_entry(symaddr); |
546 | printf("Calling f(): 0x%p: %s\n", symaddr, symbol); |
591 | printf("Calling f(): 0x%p: %s\n", symaddr, symbol); |
547 | f = (__native (*)(void)) symaddr; |
592 | f = (__native (*)(void)) symaddr; |
548 | printf("Result: 0x%X\n", f()); |
593 | printf("Result: 0x%X\n", f()); |
549 | } |
594 | } |
550 | 595 | ||
551 | return 1; |
596 | return 1; |
552 | } |
597 | } |
553 | 598 | ||
554 | /** Call function with one parameter */ |
599 | /** Call function with one parameter */ |
555 | int cmd_call1(cmd_arg_t *argv) |
600 | int cmd_call1(cmd_arg_t *argv) |
556 | { |
601 | { |
557 | __address symaddr; |
602 | __address symaddr; |
558 | char *symbol; |
603 | char *symbol; |
559 | __native (*f)(__native); |
604 | __native (*f)(__native); |
560 | __native arg1 = argv[1].intval; |
605 | __native arg1 = argv[1].intval; |
561 | 606 | ||
562 | symaddr = get_symbol_addr(argv->buffer); |
607 | symaddr = get_symbol_addr(argv->buffer); |
563 | if (!symaddr) |
608 | if (!symaddr) |
564 | printf("Symbol not found.\n"); |
609 | printf("Symbol %s not found.\n", argv->buffer); |
565 | else if (symaddr == (__address) -1) { |
610 | else if (symaddr == (__address) -1) { |
566 | symtab_print_search(argv->buffer); |
611 | symtab_print_search(argv->buffer); |
567 | printf("Duplicate symbol, be more specific.\n"); |
612 | printf("Duplicate symbol, be more specific.\n"); |
568 | } else { |
613 | } else { |
569 | symbol = get_symtab_entry(symaddr); |
614 | symbol = get_symtab_entry(symaddr); |
570 | printf("Calling f(0x%x): 0x%p: %s\n", arg1, symaddr, symbol); |
615 | printf("Calling f(0x%x): 0x%p: %s\n", arg1, symaddr, symbol); |
571 | f = (__native (*)(__native)) symaddr; |
616 | f = (__native (*)(__native)) symaddr; |
572 | printf("Result: 0x%x\n", f(arg1)); |
617 | printf("Result: 0x%x\n", f(arg1)); |
573 | } |
618 | } |
574 | 619 | ||
575 | return 1; |
620 | return 1; |
576 | } |
621 | } |
577 | 622 | ||
578 | /** Call function with two parameters */ |
623 | /** Call function with two parameters */ |
579 | int cmd_call2(cmd_arg_t *argv) |
624 | int cmd_call2(cmd_arg_t *argv) |
580 | { |
625 | { |
581 | __address symaddr; |
626 | __address symaddr; |
582 | char *symbol; |
627 | char *symbol; |
583 | __native (*f)(__native); |
628 | __native (*f)(__native,__native); |
584 | __native arg1 = argv[1].intval; |
629 | __native arg1 = argv[1].intval; |
585 | __native arg2 = argv[2].intval; |
630 | __native arg2 = argv[2].intval; |
586 | 631 | ||
587 | symaddr = get_symbol_addr(argv->buffer); |
632 | symaddr = get_symbol_addr(argv->buffer); |
588 | if (!symaddr) |
633 | if (!symaddr) |
589 | printf("Symbol not found.\n"); |
634 | printf("Symbol %s not found.\n", argv->buffer); |
590 | else if (symaddr == (__address) -1) { |
635 | else if (symaddr == (__address) -1) { |
591 | symtab_print_search(argv->buffer); |
636 | symtab_print_search(argv->buffer); |
592 | printf("Duplicate symbol, be more specific.\n"); |
637 | printf("Duplicate symbol, be more specific.\n"); |
593 | } else { |
638 | } else { |
594 | symbol = get_symtab_entry(symaddr); |
639 | symbol = get_symtab_entry(symaddr); |
595 | printf("Calling f(0x%x,0x%x): 0x%p: %s\n", |
640 | printf("Calling f(0x%x,0x%x): 0x%p: %s\n", |
596 | arg1, arg2, symaddr, symbol); |
641 | arg1, arg2, symaddr, symbol); |
597 | f = (__native (*)(__native)) symaddr; |
642 | f = (__native (*)(__native,__native)) symaddr; |
598 | printf("Result: 0x%x\n", f(arg1)); |
643 | printf("Result: 0x%x\n", f(arg1, arg2)); |
599 | } |
644 | } |
600 | 645 | ||
601 | return 1; |
646 | return 1; |
602 | } |
647 | } |
603 | 648 | ||
604 | 649 | ||
605 | /** Print detailed description of 'describe' command. */ |
650 | /** Print detailed description of 'describe' command. */ |
606 | void desc_help(void) |
651 | void desc_help(void) |
607 | { |
652 | { |
608 | printf("Syntax: describe command_name\n"); |
653 | printf("Syntax: describe command_name\n"); |
609 | } |
654 | } |
610 | 655 | ||
611 | /** Halt the kernel. |
656 | /** Halt the kernel. |
612 | * |
657 | * |
613 | * @param argv Argument vector (ignored). |
658 | * @param argv Argument vector (ignored). |
614 | * |
659 | * |
615 | * @return 0 on failure, 1 on success (never returns). |
660 | * @return 0 on failure, 1 on success (never returns). |
616 | */ |
661 | */ |
617 | int cmd_halt(cmd_arg_t *argv) |
662 | int cmd_halt(cmd_arg_t *argv) |
618 | { |
663 | { |
619 | halt(); |
664 | halt(); |
620 | return 1; |
665 | return 1; |
621 | } |
666 | } |
622 | 667 |