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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 <console/cmd.h> |
|
32 | #include <print.h> |
33 | #include <print.h> |
33 | #include <panic.h> |
34 | #include <panic.h> |
34 | #include <typedefs.h> |
35 | #include <typedefs.h> |
35 | #include <arch/types.h> |
36 | #include <arch/types.h> |
36 | #include <list.h> |
37 | #include <list.h> |
37 | #include <arch.h> |
38 | #include <arch.h> |
38 | #include <func.h> |
- | |
39 | #include <macros.h> |
39 | #include <macros.h> |
40 | #include <debug.h> |
40 | #include <debug.h> |
- | 41 | #include <func.h> |
|
41 | #include <symtab.h> |
42 | #include <symtab.h> |
42 | 43 | ||
43 | #include <mm/tlb_cmd.h> |
- | |
44 | - | ||
45 | #define MAX_CMDLINE 256 |
- | |
46 | - | ||
47 | /** Simple kernel console. |
44 | /** Simple kernel console. |
48 | * |
45 | * |
49 | * The console is realized by kernel thread kconsole. |
46 | * The console is realized by kernel thread kconsole. |
50 | * It doesn't understand any useful command on its own, |
47 | * It doesn't understand any useful command on its own, |
51 | * but makes it possible for other kernel subsystems to |
48 | * but makes it possible for other kernel subsystems to |
52 | * register their own commands. |
49 | * register their own commands. |
53 | */ |
50 | */ |
54 | 51 | ||
55 | /** Locking. |
52 | /** Locking. |
56 | * |
53 | * |
57 | * There is a list of cmd_info_t structures. This list |
54 | * There is a list of cmd_info_t structures. This list |
58 | * is protected by cmd_lock spinlock. Note that specially |
55 | * is protected by cmd_lock spinlock. Note that specially |
59 | * the link elements of cmd_info_t are protected by |
56 | * the link elements of cmd_info_t are protected by |
60 | * this lock. |
57 | * this lock. |
61 | * |
58 | * |
62 | * Each cmd_info_t also has its own lock, which protects |
59 | * Each cmd_info_t also has its own lock, which protects |
63 | * all elements thereof except the link element. |
60 | * all elements thereof except the link element. |
64 | * |
61 | * |
65 | * cmd_lock must be acquired before any cmd_info lock. |
62 | * cmd_lock must be acquired before any cmd_info lock. |
66 | * When locking two cmd info structures, structure with |
63 | * When locking two cmd info structures, structure with |
67 | * lower address must be locked first. |
64 | * lower address must be locked first. |
68 | */ |
65 | */ |
69 | 66 | ||
70 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
67 | spinlock_t cmd_lock; /**< Lock protecting command list. */ |
71 | link_t cmd_head; /**< Command list. */ |
68 | link_t cmd_head; /**< Command list. */ |
72 | 69 | ||
73 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
70 | static cmd_info_t *parse_cmdline(char *cmdline, size_t len); |
74 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
71 | static bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end); |
75 | 72 | ||
76 | /** Data and methods for 'help' command. */ |
- | |
77 | static int cmd_help(cmd_arg_t *argv); |
- | |
78 | static cmd_info_t help_info = { |
- | |
79 | .name = "help", |
- | |
80 | .description = "List of supported commands.", |
- | |
81 | .func = cmd_help, |
- | |
82 | .argc = 0 |
- | |
83 | }; |
- | |
84 | - | ||
85 | /** Data and methods for 'description' command. */ |
- | |
86 | static int cmd_desc(cmd_arg_t *argv); |
- | |
87 | static void desc_help(void); |
- | |
88 | static char desc_buf[MAX_CMDLINE+1]; |
- | |
89 | static cmd_arg_t desc_argv = { |
- | |
90 | .type = ARG_TYPE_STRING, |
- | |
91 | .buffer = desc_buf, |
- | |
92 | .len = sizeof(desc_buf) |
- | |
93 | }; |
- | |
94 | static cmd_info_t desc_info = { |
- | |
95 | .name = "describe", |
- | |
96 | .description = "Describe specified command.", |
- | |
97 | .help = desc_help, |
- | |
98 | .func = cmd_desc, |
- | |
99 | .argc = 1, |
- | |
100 | .argv = &desc_argv |
- | |
101 | }; |
- | |
102 | - | ||
103 | /** Data and methods for 'symaddr' command. */ |
- | |
104 | static int cmd_symaddr(cmd_arg_t *argv); |
- | |
105 | static char symaddr_buf[MAX_CMDLINE+1]; |
- | |
106 | static cmd_arg_t symaddr_argv = { |
- | |
107 | .type = ARG_TYPE_STRING, |
- | |
108 | .buffer = symaddr_buf, |
- | |
109 | .len = sizeof(symaddr_buf) |
- | |
110 | }; |
- | |
111 | static cmd_info_t symaddr_info = { |
- | |
112 | .name = "symaddr", |
- | |
113 | .description = "Return symbol address.", |
- | |
114 | .func = cmd_symaddr, |
- | |
115 | .argc = 1, |
- | |
116 | .argv = &symaddr_argv |
- | |
117 | }; |
- | |
118 | - | ||
119 | /** Call0 - call function with no parameters */ |
- | |
120 | static char call0_buf[MAX_CMDLINE+1]; |
- | |
121 | static char carg1_buf[MAX_CMDLINE+1]; |
- | |
122 | static char carg2_buf[MAX_CMDLINE+1]; |
- | |
123 | static char carg3_buf[MAX_CMDLINE+1]; |
- | |
124 | - | ||
125 | static int cmd_call0(cmd_arg_t *argv); |
- | |
126 | static cmd_arg_t call0_argv = { |
- | |
127 | .type = ARG_TYPE_STRING, |
- | |
128 | .buffer = call0_buf, |
- | |
129 | .len = sizeof(call0_buf) |
- | |
130 | }; |
- | |
131 | static cmd_info_t call0_info = { |
- | |
132 | .name = "call0", |
- | |
133 | .description = "call0 <function> -> call function().", |
- | |
134 | .func = cmd_call0, |
- | |
135 | .argc = 1, |
- | |
136 | .argv = &call0_argv |
- | |
137 | }; |
- | |
138 | - | ||
139 | static int cmd_call1(cmd_arg_t *argv); |
- | |
140 | static cmd_arg_t call1_argv[] = { |
- | |
141 | { |
- | |
142 | .type = ARG_TYPE_STRING, |
- | |
143 | .buffer = call0_buf, |
- | |
144 | .len = sizeof(call0_buf) |
- | |
145 | }, |
- | |
146 | { |
- | |
147 | .type = ARG_TYPE_VAR, |
- | |
148 | .buffer = carg1_buf, |
- | |
149 | .len = sizeof(carg1_buf) |
- | |
150 | } |
- | |
151 | }; |
- | |
152 | static cmd_info_t call1_info = { |
- | |
153 | .name = "call1", |
- | |
154 | .description = "call1 <function> <arg1> -> call function(arg1).", |
- | |
155 | .func = cmd_call1, |
- | |
156 | .argc = 2, |
- | |
157 | .argv = call1_argv |
- | |
158 | }; |
- | |
159 | - | ||
160 | static int cmd_call2(cmd_arg_t *argv); |
- | |
161 | static cmd_arg_t call2_argv[] = { |
- | |
162 | { |
- | |
163 | .type = ARG_TYPE_STRING, |
- | |
164 | .buffer = call0_buf, |
- | |
165 | .len = sizeof(call0_buf) |
- | |
166 | }, |
- | |
167 | { |
- | |
168 | .type = ARG_TYPE_VAR, |
- | |
169 | .buffer = carg1_buf, |
- | |
170 | .len = sizeof(carg1_buf) |
- | |
171 | }, |
- | |
172 | { |
- | |
173 | .type = ARG_TYPE_VAR, |
- | |
174 | .buffer = carg2_buf, |
- | |
175 | .len = sizeof(carg2_buf) |
- | |
176 | } |
- | |
177 | }; |
- | |
178 | static cmd_info_t call2_info = { |
- | |
179 | .name = "call2", |
- | |
180 | .description = "call2 <function> <arg1> <arg2> -> call function(arg1,arg2).", |
- | |
181 | .func = cmd_call2, |
- | |
182 | .argc = 3, |
- | |
183 | .argv = call2_argv |
- | |
184 | }; |
- | |
185 | - | ||
186 | static int cmd_call3(cmd_arg_t *argv); |
- | |
187 | static cmd_arg_t call3_argv[] = { |
- | |
188 | { |
- | |
189 | .type = ARG_TYPE_STRING, |
- | |
190 | .buffer = call0_buf, |
- | |
191 | .len = sizeof(call0_buf) |
- | |
192 | }, |
- | |
193 | { |
- | |
194 | .type = ARG_TYPE_VAR, |
- | |
195 | .buffer = carg1_buf, |
- | |
196 | .len = sizeof(carg1_buf) |
- | |
197 | }, |
- | |
198 | { |
- | |
199 | .type = ARG_TYPE_VAR, |
- | |
200 | .buffer = carg2_buf, |
- | |
201 | .len = sizeof(carg2_buf) |
- | |
202 | }, |
- | |
203 | { |
- | |
204 | .type = ARG_TYPE_VAR, |
- | |
205 | .buffer = carg3_buf, |
- | |
206 | .len = sizeof(carg3_buf) |
- | |
207 | } |
- | |
208 | - | ||
209 | }; |
- | |
210 | static cmd_info_t call3_info = { |
- | |
211 | .name = "call3", |
- | |
212 | .description = "call3 <function> <arg1> <arg2> <arg3> -> call function(arg1,arg2,arg3).", |
- | |
213 | .func = cmd_call3, |
- | |
214 | .argc = 4, |
- | |
215 | .argv = call3_argv |
- | |
216 | }; |
- | |
217 | - | ||
218 | /** Data and methods for 'halt' command. */ |
- | |
219 | static int cmd_halt(cmd_arg_t *argv); |
- | |
220 | static cmd_info_t halt_info = { |
- | |
221 | .name = "halt", |
- | |
222 | .description = "Halt the kernel.", |
- | |
223 | .func = cmd_halt, |
- | |
224 | .argc = 0 |
- | |
225 | }; |
- | |
226 | - | ||
227 | /** Initialize kconsole data structures. */ |
73 | /** Initialize kconsole data structures. */ |
228 | void kconsole_init(void) |
74 | void kconsole_init(void) |
229 | { |
75 | { |
230 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
76 | spinlock_initialize(&cmd_lock, "kconsole_cmd"); |
231 | list_initialize(&cmd_head); |
77 | list_initialize(&cmd_head); |
232 | - | ||
233 | spinlock_initialize(&help_info.lock, "kconsole_help"); |
- | |
234 | link_initialize(&help_info.link); |
- | |
235 | if (!cmd_register(&help_info)) |
- | |
236 | panic("could not register command %s\n", help_info.name); |
- | |
237 | - | ||
238 | - | ||
239 | spinlock_initialize(&desc_info.lock, "kconsole_desc"); |
- | |
240 | link_initialize(&desc_info.link); |
- | |
241 | if (!cmd_register(&desc_info)) |
- | |
242 | panic("could not register command %s\n", desc_info.name); |
- | |
243 | - | ||
244 | spinlock_initialize(&symaddr_info.lock, "kconsole_symaddr"); |
- | |
245 | link_initialize(&symaddr_info.link); |
- | |
246 | if (!cmd_register(&symaddr_info)) |
- | |
247 | panic("could not register command %s\n", symaddr_info.name); |
- | |
248 | - | ||
249 | spinlock_initialize(&call0_info.lock, "kconsole_call0"); |
- | |
250 | link_initialize(&call0_info.link); |
- | |
251 | if (!cmd_register(&call0_info)) |
- | |
252 | panic("could not register command %s\n", call0_info.name); |
- | |
253 | - | ||
254 | spinlock_initialize(&call1_info.lock, "kconsole_call1"); |
- | |
255 | link_initialize(&call1_info.link); |
- | |
256 | if (!cmd_register(&call1_info)) |
- | |
257 | panic("could not register command %s\n", call1_info.name); |
- | |
258 | - | ||
259 | - | ||
260 | spinlock_initialize(&call2_info.lock, "kconsole_call2"); |
- | |
261 | link_initialize(&call2_info.link); |
- | |
262 | if (!cmd_register(&call2_info)) |
- | |
263 | panic("could not register command %s\n", call2_info.name); |
- | |
264 | - | ||
265 | spinlock_initialize(&call3_info.lock, "kconsole_call3"); |
- | |
266 | link_initialize(&call3_info.link); |
- | |
267 | if (!cmd_register(&call3_info)) |
- | |
268 | panic("could not register command %s\n", call3_info.name); |
- | |
269 | - | ||
270 | spinlock_initialize(&halt_info.lock, "kconsole_halt"); |
- | |
271 | link_initialize(&halt_info.link); |
- | |
272 | if (!cmd_register(&halt_info)) |
- | |
273 | panic("could not register command %s\n", halt_info.name); |
- | |
274 | 78 | ||
275 | spinlock_initialize(&desc_ptlb.lock, "kconsole_ptlb"); |
- | |
276 | link_initialize(&desc_ptlb.link); |
- | |
277 | if (!cmd_register(&desc_ptlb)) |
79 | cmd_init(); |
278 | panic("could not register command %s\n", desc_ptlb.name); |
- | |
279 | } |
80 | } |
280 | 81 | ||
281 | 82 | ||
282 | /** Register kconsole command. |
83 | /** Register kconsole command. |
283 | * |
84 | * |
284 | * @param cmd Structure describing the command. |
85 | * @param cmd Structure describing the command. |
285 | * |
86 | * |
286 | * @return 0 on failure, 1 on success. |
87 | * @return 0 on failure, 1 on success. |
287 | */ |
88 | */ |
288 | int cmd_register(cmd_info_t *cmd) |
89 | int cmd_register(cmd_info_t *cmd) |
289 | { |
90 | { |
290 | ipl_t ipl; |
91 | ipl_t ipl; |
291 | link_t *cur; |
92 | link_t *cur; |
292 | 93 | ||
293 | spinlock_lock(&cmd_lock); |
94 | spinlock_lock(&cmd_lock); |
294 | 95 | ||
295 | /* |
96 | /* |
296 | * Make sure the command is not already listed. |
97 | * Make sure the command is not already listed. |
297 | */ |
98 | */ |
298 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
99 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
299 | cmd_info_t *hlp; |
100 | cmd_info_t *hlp; |
300 | 101 | ||
301 | hlp = list_get_instance(cur, cmd_info_t, link); |
102 | hlp = list_get_instance(cur, cmd_info_t, link); |
302 | 103 | ||
303 | if (hlp == cmd) { |
104 | if (hlp == cmd) { |
304 | /* The command is already there. */ |
105 | /* The command is already there. */ |
305 | spinlock_unlock(&cmd_lock); |
106 | spinlock_unlock(&cmd_lock); |
306 | return 0; |
107 | return 0; |
307 | } |
108 | } |
308 | 109 | ||
309 | /* Avoid deadlock. */ |
110 | /* Avoid deadlock. */ |
310 | if (hlp < cmd) { |
111 | if (hlp < cmd) { |
311 | spinlock_lock(&hlp->lock); |
112 | spinlock_lock(&hlp->lock); |
312 | spinlock_lock(&cmd->lock); |
113 | spinlock_lock(&cmd->lock); |
313 | } else { |
114 | } else { |
314 | spinlock_lock(&cmd->lock); |
115 | spinlock_lock(&cmd->lock); |
315 | spinlock_lock(&hlp->lock); |
116 | spinlock_lock(&hlp->lock); |
316 | } |
117 | } |
317 | 118 | ||
318 | if ((strncmp(hlp->name, cmd->name, strlen(cmd->name)) == 0)) { |
119 | if ((strncmp(hlp->name, cmd->name, strlen(cmd->name)) == 0)) { |
319 | /* The command is already there. */ |
120 | /* The command is already there. */ |
320 | spinlock_unlock(&hlp->lock); |
121 | spinlock_unlock(&hlp->lock); |
321 | spinlock_unlock(&cmd->lock); |
122 | spinlock_unlock(&cmd->lock); |
322 | spinlock_unlock(&cmd_lock); |
123 | spinlock_unlock(&cmd_lock); |
323 | return 0; |
124 | return 0; |
324 | } |
125 | } |
325 | 126 | ||
326 | spinlock_unlock(&hlp->lock); |
127 | spinlock_unlock(&hlp->lock); |
327 | spinlock_unlock(&cmd->lock); |
128 | spinlock_unlock(&cmd->lock); |
328 | } |
129 | } |
329 | 130 | ||
330 | /* |
131 | /* |
331 | * Now the command can be added. |
132 | * Now the command can be added. |
332 | */ |
133 | */ |
333 | list_append(&cmd->link, &cmd_head); |
134 | list_append(&cmd->link, &cmd_head); |
334 | 135 | ||
335 | spinlock_unlock(&cmd_lock); |
136 | spinlock_unlock(&cmd_lock); |
336 | return 1; |
137 | return 1; |
337 | } |
138 | } |
338 | 139 | ||
339 | /** Kernel console managing thread. |
140 | /** Kernel console managing thread. |
340 | * |
141 | * |
341 | * @param arg Not used. |
142 | * @param arg Not used. |
342 | */ |
143 | */ |
343 | void kconsole(void *arg) |
144 | void kconsole(void *arg) |
344 | { |
145 | { |
345 | char cmdline[MAX_CMDLINE+1]; |
146 | char cmdline[MAX_CMDLINE+1]; |
346 | cmd_info_t *cmd_info; |
147 | cmd_info_t *cmd_info; |
347 | count_t len; |
148 | count_t len; |
348 | 149 | ||
349 | if (!stdin) { |
150 | if (!stdin) { |
350 | printf("%s: no stdin\n", __FUNCTION__); |
151 | printf("%s: no stdin\n", __FUNCTION__); |
351 | return; |
152 | return; |
352 | } |
153 | } |
353 | 154 | ||
354 | while (true) { |
155 | while (true) { |
355 | printf("%s> ", __FUNCTION__); |
156 | printf("%s> ", __FUNCTION__); |
356 | if (!(len = gets(stdin, cmdline, sizeof(cmdline)))) |
157 | if (!(len = gets(stdin, cmdline, sizeof(cmdline)))) |
357 | continue; |
158 | continue; |
358 | cmdline[len] = '\0'; |
159 | cmdline[len] = '\0'; |
359 | cmd_info = parse_cmdline(cmdline, len); |
160 | cmd_info = parse_cmdline(cmdline, len); |
360 | if (!cmd_info) |
161 | if (!cmd_info) |
361 | continue; |
162 | continue; |
362 | (void) cmd_info->func(cmd_info->argv); |
163 | (void) cmd_info->func(cmd_info->argv); |
363 | } |
164 | } |
364 | } |
165 | } |
365 | 166 | ||
366 | static int parse_int_arg(char *text, size_t len, __native *result) |
167 | static int parse_int_arg(char *text, size_t len, __native *result) |
367 | { |
168 | { |
368 | char symname[MAX_SYMBOL_NAME]; |
169 | char symname[MAX_SYMBOL_NAME]; |
369 | __address symaddr; |
170 | __address symaddr; |
370 | bool isaddr = false; |
171 | bool isaddr = false; |
371 | bool isptr = false; |
172 | bool isptr = false; |
372 | 173 | ||
373 | /* If we get a name, try to find it in symbol table */ |
174 | /* If we get a name, try to find it in symbol table */ |
374 | if (text[0] < '0' | text[0] > '9') { |
175 | if (text[0] < '0' | text[0] > '9') { |
375 | if (text[0] == '&') { |
176 | if (text[0] == '&') { |
376 | isaddr = true; |
177 | isaddr = true; |
377 | text++;len--; |
178 | text++;len--; |
378 | } else if (text[0] == '*') { |
179 | } else if (text[0] == '*') { |
379 | isptr = true; |
180 | isptr = true; |
380 | text++;len--; |
181 | text++;len--; |
381 | } |
182 | } |
382 | strncpy(symname, text, min(len+1, MAX_SYMBOL_NAME)); |
183 | strncpy(symname, text, min(len+1, MAX_SYMBOL_NAME)); |
383 | symaddr = get_symbol_addr(symname); |
184 | symaddr = get_symbol_addr(symname); |
384 | if (!symaddr) { |
185 | if (!symaddr) { |
385 | printf("Symbol %s not found.\n",symname); |
186 | printf("Symbol %s not found.\n",symname); |
386 | return -1; |
187 | return -1; |
387 | } |
188 | } |
388 | if (symaddr == (__address) -1) { |
189 | if (symaddr == (__address) -1) { |
389 | printf("Duplicate symbol %s.\n",symname); |
190 | printf("Duplicate symbol %s.\n",symname); |
390 | symtab_print_search(symname); |
191 | symtab_print_search(symname); |
391 | return -1; |
192 | return -1; |
392 | } |
193 | } |
393 | if (isaddr) |
194 | if (isaddr) |
394 | *result = (__native)symaddr; |
195 | *result = (__native)symaddr; |
395 | else if (isptr) |
196 | else if (isptr) |
396 | *result = **((__native **)symaddr); |
197 | *result = **((__native **)symaddr); |
397 | else |
198 | else |
398 | *result = *((__native *)symaddr); |
199 | *result = *((__native *)symaddr); |
399 | } else /* It's a number - convert it */ |
200 | } else /* It's a number - convert it */ |
400 | *result = atoi(text); |
201 | *result = atoi(text); |
401 | return 0; |
202 | return 0; |
402 | } |
203 | } |
403 | 204 | ||
404 | /** Parse command line. |
205 | /** Parse command line. |
405 | * |
206 | * |
406 | * @param cmdline Command line as read from input device. |
207 | * @param cmdline Command line as read from input device. |
407 | * @param len Command line length. |
208 | * @param len Command line length. |
408 | * |
209 | * |
409 | * @return Structure describing the command. |
210 | * @return Structure describing the command. |
410 | */ |
211 | */ |
411 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
212 | cmd_info_t *parse_cmdline(char *cmdline, size_t len) |
412 | { |
213 | { |
413 | index_t start = 0, end = 0; |
214 | index_t start = 0, end = 0; |
414 | cmd_info_t *cmd = NULL; |
215 | cmd_info_t *cmd = NULL; |
415 | link_t *cur; |
216 | link_t *cur; |
416 | ipl_t ipl; |
217 | ipl_t ipl; |
417 | int i; |
218 | int i; |
418 | 219 | ||
419 | if (!parse_argument(cmdline, len, &start, &end)) { |
220 | if (!parse_argument(cmdline, len, &start, &end)) { |
420 | /* Command line did not contain alphanumeric word. */ |
221 | /* Command line did not contain alphanumeric word. */ |
421 | return NULL; |
222 | return NULL; |
422 | } |
223 | } |
423 | 224 | ||
424 | spinlock_lock(&cmd_lock); |
225 | spinlock_lock(&cmd_lock); |
425 | 226 | ||
426 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
227 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
427 | cmd_info_t *hlp; |
228 | cmd_info_t *hlp; |
428 | 229 | ||
429 | hlp = list_get_instance(cur, cmd_info_t, link); |
230 | hlp = list_get_instance(cur, cmd_info_t, link); |
430 | spinlock_lock(&hlp->lock); |
231 | spinlock_lock(&hlp->lock); |
431 | 232 | ||
432 | if (strncmp(hlp->name, &cmdline[start], (end - start) + 1) == 0) { |
233 | if (strncmp(hlp->name, &cmdline[start], (end - start) + 1) == 0) { |
433 | cmd = hlp; |
234 | cmd = hlp; |
434 | break; |
235 | break; |
435 | } |
236 | } |
436 | 237 | ||
437 | spinlock_unlock(&hlp->lock); |
238 | spinlock_unlock(&hlp->lock); |
438 | } |
239 | } |
439 | 240 | ||
440 | spinlock_unlock(&cmd_lock); |
241 | spinlock_unlock(&cmd_lock); |
441 | 242 | ||
442 | if (!cmd) { |
243 | if (!cmd) { |
443 | /* Unknown command. */ |
244 | /* Unknown command. */ |
444 | printf("Unknown command.\n"); |
245 | printf("Unknown command.\n"); |
445 | return NULL; |
246 | return NULL; |
446 | } |
247 | } |
447 | 248 | ||
448 | /* cmd == hlp is locked */ |
249 | /* cmd == hlp is locked */ |
449 | 250 | ||
450 | /* |
251 | /* |
451 | * The command line must be further analyzed and |
252 | * The command line must be further analyzed and |
452 | * the parameters therefrom must be matched and |
253 | * the parameters therefrom must be matched and |
453 | * converted to those specified in the cmd info |
254 | * converted to those specified in the cmd info |
454 | * structure. |
255 | * structure. |
455 | */ |
256 | */ |
456 | 257 | ||
457 | for (i = 0; i < cmd->argc; i++) { |
258 | for (i = 0; i < cmd->argc; i++) { |
458 | char *buf; |
259 | char *buf; |
459 | start = end + 1; |
260 | start = end + 1; |
460 | if (!parse_argument(cmdline, len, &start, &end)) { |
261 | if (!parse_argument(cmdline, len, &start, &end)) { |
461 | printf("Too few arguments.\n"); |
262 | printf("Too few arguments.\n"); |
462 | spinlock_unlock(&cmd->lock); |
263 | spinlock_unlock(&cmd->lock); |
463 | return NULL; |
264 | return NULL; |
464 | } |
265 | } |
465 | 266 | ||
466 | switch (cmd->argv[i].type) { |
267 | switch (cmd->argv[i].type) { |
467 | case ARG_TYPE_STRING: |
268 | case ARG_TYPE_STRING: |
468 | buf = cmd->argv[i].buffer; |
269 | buf = cmd->argv[i].buffer; |
469 | strncpy(buf, (const char *) &cmdline[start], min((end - start) + 2, cmd->argv[i].len)); |
270 | strncpy(buf, (const char *) &cmdline[start], min((end - start) + 2, cmd->argv[i].len)); |
470 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = '\0'; |
271 | buf[min((end - start) + 1, cmd->argv[i].len - 1)] = '\0'; |
471 | break; |
272 | break; |
472 | case ARG_TYPE_INT: |
273 | case ARG_TYPE_INT: |
473 | if (parse_int_arg(cmdline+start, end-start+1, |
274 | if (parse_int_arg(cmdline+start, end-start+1, |
474 | &cmd->argv[i].intval)) |
275 | &cmd->argv[i].intval)) |
475 | return NULL; |
276 | return NULL; |
476 | break; |
277 | break; |
477 | case ARG_TYPE_VAR: |
278 | case ARG_TYPE_VAR: |
478 | if (start != end && cmdline[start] == '"' && cmdline[end] == '"') { |
279 | if (start != end && cmdline[start] == '"' && cmdline[end] == '"') { |
479 | buf = cmd->argv[i].buffer; |
280 | buf = cmd->argv[i].buffer; |
480 | strncpy(buf, (const char *) &cmdline[start+1], |
281 | strncpy(buf, (const char *) &cmdline[start+1], |
481 | min((end-start), cmd->argv[i].len)); |
282 | min((end-start), cmd->argv[i].len)); |
482 | buf[min((end - start), cmd->argv[i].len - 1)] = '\0'; |
283 | buf[min((end - start), cmd->argv[i].len - 1)] = '\0'; |
483 | cmd->argv[i].intval = (__native) buf; |
284 | cmd->argv[i].intval = (__native) buf; |
484 | cmd->argv[i].vartype = ARG_TYPE_STRING; |
285 | cmd->argv[i].vartype = ARG_TYPE_STRING; |
485 | } else if (!parse_int_arg(cmdline+start, end-start+1, |
286 | } else if (!parse_int_arg(cmdline+start, end-start+1, |
486 | &cmd->argv[i].intval)) |
287 | &cmd->argv[i].intval)) |
487 | cmd->argv[i].vartype = ARG_TYPE_INT; |
288 | cmd->argv[i].vartype = ARG_TYPE_INT; |
488 | else { |
289 | else { |
489 | printf("Unrecognized variable argument.\n"); |
290 | printf("Unrecognized variable argument.\n"); |
490 | return NULL; |
291 | return NULL; |
491 | } |
292 | } |
492 | break; |
293 | break; |
493 | case ARG_TYPE_INVALID: |
294 | case ARG_TYPE_INVALID: |
494 | default: |
295 | default: |
495 | printf("invalid argument type\n"); |
296 | printf("invalid argument type\n"); |
496 | return NULL; |
297 | return NULL; |
497 | break; |
298 | break; |
498 | } |
299 | } |
499 | } |
300 | } |
500 | 301 | ||
501 | start = end + 1; |
302 | start = end + 1; |
502 | if (parse_argument(cmdline, len, &start, &end)) { |
303 | if (parse_argument(cmdline, len, &start, &end)) { |
503 | printf("Too many arguments.\n"); |
304 | printf("Too many arguments.\n"); |
504 | spinlock_unlock(&cmd->lock); |
305 | spinlock_unlock(&cmd->lock); |
505 | return NULL; |
306 | return NULL; |
506 | } |
307 | } |
507 | 308 | ||
508 | spinlock_unlock(&cmd->lock); |
309 | spinlock_unlock(&cmd->lock); |
509 | return cmd; |
310 | return cmd; |
510 | } |
311 | } |
511 | 312 | ||
512 | /** Parse argument. |
313 | /** Parse argument. |
513 | * |
314 | * |
514 | * Find start and end positions of command line argument. |
315 | * Find start and end positions of command line argument. |
515 | * |
316 | * |
516 | * @param cmdline Command line as read from the input device. |
317 | * @param cmdline Command line as read from the input device. |
517 | * @param len Number of characters in cmdline. |
318 | * @param len Number of characters in cmdline. |
518 | * @param start On entry, 'start' contains pointer to the index |
319 | * @param start On entry, 'start' contains pointer to the index |
519 | * of first unprocessed character of cmdline. |
320 | * of first unprocessed character of cmdline. |
520 | * On successful exit, it marks beginning of the next argument. |
321 | * On successful exit, it marks beginning of the next argument. |
521 | * @param end Undefined on entry. On exit, 'end' points to the last character |
322 | * @param end Undefined on entry. On exit, 'end' points to the last character |
522 | * of the next argument. |
323 | * of the next argument. |
523 | * |
324 | * |
524 | * @return false on failure, true on success. |
325 | * @return false on failure, true on success. |
525 | */ |
326 | */ |
526 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
327 | bool parse_argument(char *cmdline, size_t len, index_t *start, index_t *end) |
527 | { |
328 | { |
528 | int i; |
329 | int i; |
529 | bool found_start = false; |
330 | bool found_start = false; |
530 | 331 | ||
531 | ASSERT(start != NULL); |
332 | ASSERT(start != NULL); |
532 | ASSERT(end != NULL); |
333 | ASSERT(end != NULL); |
533 | 334 | ||
534 | for (i = *start; i < len; i++) { |
335 | for (i = *start; i < len; i++) { |
535 | if (!found_start) { |
336 | if (!found_start) { |
536 | if (is_white(cmdline[i])) |
337 | if (is_white(cmdline[i])) |
537 | (*start)++; |
338 | (*start)++; |
538 | else |
339 | else |
539 | found_start = true; |
340 | found_start = true; |
540 | } else { |
341 | } else { |
541 | if (is_white(cmdline[i])) |
342 | if (is_white(cmdline[i])) |
542 | break; |
343 | break; |
543 | } |
344 | } |
544 | } |
345 | } |
545 | *end = i - 1; |
346 | *end = i - 1; |
546 | 347 | ||
547 | return found_start; |
348 | return found_start; |
548 | } |
349 | } |
549 | - | ||
550 | - | ||
551 | /** List supported commands. |
- | |
552 | * |
- | |
553 | * @param argv Argument vector. |
- | |
554 | * |
- | |
555 | * @return 0 on failure, 1 on success. |
- | |
556 | */ |
- | |
557 | int cmd_help(cmd_arg_t *argv) |
- | |
558 | { |
- | |
559 | link_t *cur; |
- | |
560 | ipl_t ipl; |
- | |
561 | - | ||
562 | spinlock_lock(&cmd_lock); |
- | |
563 | - | ||
564 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
- | |
565 | cmd_info_t *hlp; |
- | |
566 | - | ||
567 | hlp = list_get_instance(cur, cmd_info_t, link); |
- | |
568 | spinlock_lock(&hlp->lock); |
- | |
569 | - | ||
570 | printf("%s - %s\n", hlp->name, hlp->description); |
- | |
571 | - | ||
572 | spinlock_unlock(&hlp->lock); |
- | |
573 | } |
- | |
574 | - | ||
575 | spinlock_unlock(&cmd_lock); |
- | |
576 | - | ||
577 | return 1; |
- | |
578 | } |
- | |
579 | - | ||
580 | /** Describe specified command. |
- | |
581 | * |
- | |
582 | * @param argv Argument vector. |
- | |
583 | * |
- | |
584 | * @return 0 on failure, 1 on success. |
- | |
585 | */ |
- | |
586 | int cmd_desc(cmd_arg_t *argv) |
- | |
587 | { |
- | |
588 | link_t *cur; |
- | |
589 | ipl_t ipl; |
- | |
590 | - | ||
591 | spinlock_lock(&cmd_lock); |
- | |
592 | - | ||
593 | for (cur = cmd_head.next; cur != &cmd_head; cur = cur->next) { |
- | |
594 | cmd_info_t *hlp; |
- | |
595 | - | ||
596 | hlp = list_get_instance(cur, cmd_info_t, link); |
- | |
597 | spinlock_lock(&hlp->lock); |
- | |
598 | - | ||
599 | if (strncmp(hlp->name, (const char *) argv->buffer, strlen(hlp->name)) == 0) { |
- | |
600 | printf("%s - %s\n", hlp->name, hlp->description); |
- | |
601 | if (hlp->help) |
- | |
602 | hlp->help(); |
- | |
603 | spinlock_unlock(&hlp->lock); |
- | |
604 | break; |
- | |
605 | } |
- | |
606 | - | ||
607 | spinlock_unlock(&hlp->lock); |
- | |
608 | } |
- | |
609 | - | ||
610 | spinlock_unlock(&cmd_lock); |
- | |
611 | - | ||
612 | return 1; |
- | |
613 | } |
- | |
614 | - | ||
615 | /** Search symbol table */ |
- | |
616 | int cmd_symaddr(cmd_arg_t *argv) |
- | |
617 | { |
- | |
618 | __address symaddr; |
- | |
619 | char *symbol; |
- | |
620 | - | ||
621 | symtab_print_search(argv->buffer); |
- | |
622 | - | ||
623 | return 1; |
- | |
624 | } |
- | |
625 | - | ||
626 | /** Call function with zero parameters */ |
- | |
627 | int cmd_call0(cmd_arg_t *argv) |
- | |
628 | { |
- | |
629 | __address symaddr; |
- | |
630 | char *symbol; |
- | |
631 | __native (*f)(void); |
- | |
632 | - | ||
633 | symaddr = get_symbol_addr(argv->buffer); |
- | |
634 | if (!symaddr) |
- | |
635 | printf("Symbol %s not found.\n", argv->buffer); |
- | |
636 | else if (symaddr == (__address) -1) { |
- | |
637 | symtab_print_search(argv->buffer); |
- | |
638 | printf("Duplicate symbol, be more specific.\n"); |
- | |
639 | } else { |
- | |
640 | symbol = get_symtab_entry(symaddr); |
- | |
641 | printf("Calling f(): 0x%p: %s\n", symaddr, symbol); |
- | |
642 | f = (__native (*)(void)) symaddr; |
- | |
643 | printf("Result: 0x%X\n", f()); |
- | |
644 | } |
- | |
645 | - | ||
646 | return 1; |
- | |
647 | } |
- | |
648 | - | ||
649 | /** Call function with one parameter */ |
- | |
650 | int cmd_call1(cmd_arg_t *argv) |
- | |
651 | { |
- | |
652 | __address symaddr; |
- | |
653 | char *symbol; |
- | |
654 | __native (*f)(__native); |
- | |
655 | __native arg1 = argv[1].intval; |
- | |
656 | - | ||
657 | symaddr = get_symbol_addr(argv->buffer); |
- | |
658 | if (!symaddr) |
- | |
659 | printf("Symbol %s not found.\n", argv->buffer); |
- | |
660 | else if (symaddr == (__address) -1) { |
- | |
661 | symtab_print_search(argv->buffer); |
- | |
662 | printf("Duplicate symbol, be more specific.\n"); |
- | |
663 | } else { |
- | |
664 | symbol = get_symtab_entry(symaddr); |
- | |
665 | printf("Calling f(0x%x): 0x%p: %s\n", arg1, symaddr, symbol); |
- | |
666 | f = (__native (*)(__native)) symaddr; |
- | |
667 | printf("Result: 0x%x\n", f(arg1)); |
- | |
668 | } |
- | |
669 | - | ||
670 | return 1; |
- | |
671 | } |
- | |
672 | - | ||
673 | /** Call function with two parameters */ |
- | |
674 | int cmd_call2(cmd_arg_t *argv) |
- | |
675 | { |
- | |
676 | __address symaddr; |
- | |
677 | char *symbol; |
- | |
678 | __native (*f)(__native,__native); |
- | |
679 | __native arg1 = argv[1].intval; |
- | |
680 | __native arg2 = argv[2].intval; |
- | |
681 | - | ||
682 | symaddr = get_symbol_addr(argv->buffer); |
- | |
683 | if (!symaddr) |
- | |
684 | printf("Symbol %s not found.\n", argv->buffer); |
- | |
685 | else if (symaddr == (__address) -1) { |
- | |
686 | symtab_print_search(argv->buffer); |
- | |
687 | printf("Duplicate symbol, be more specific.\n"); |
- | |
688 | } else { |
- | |
689 | symbol = get_symtab_entry(symaddr); |
- | |
690 | printf("Calling f(0x%x,0x%x): 0x%p: %s\n", |
- | |
691 | arg1, arg2, symaddr, symbol); |
- | |
692 | f = (__native (*)(__native,__native)) symaddr; |
- | |
693 | printf("Result: 0x%x\n", f(arg1, arg2)); |
- | |
694 | } |
- | |
695 | - | ||
696 | return 1; |
- | |
697 | } |
- | |
698 | - | ||
699 | /** Call function with three parameters */ |
- | |
700 | int cmd_call3(cmd_arg_t *argv) |
- | |
701 | { |
- | |
702 | __address symaddr; |
- | |
703 | char *symbol; |
- | |
704 | __native (*f)(__native,__native,__native); |
- | |
705 | __native arg1 = argv[1].intval; |
- | |
706 | __native arg2 = argv[2].intval; |
- | |
707 | __native arg3 = argv[3].intval; |
- | |
708 | - | ||
709 | symaddr = get_symbol_addr(argv->buffer); |
- | |
710 | if (!symaddr) |
- | |
711 | printf("Symbol %s not found.\n", argv->buffer); |
- | |
712 | else if (symaddr == (__address) -1) { |
- | |
713 | symtab_print_search(argv->buffer); |
- | |
714 | printf("Duplicate symbol, be more specific.\n"); |
- | |
715 | } else { |
- | |
716 | symbol = get_symtab_entry(symaddr); |
- | |
717 | printf("Calling f(0x%x,0x%x, 0x%x): 0x%p: %s\n", |
- | |
718 | arg1, arg2, arg3, symaddr, symbol); |
- | |
719 | f = (__native (*)(__native,__native,__native)) symaddr; |
- | |
720 | printf("Result: 0x%x\n", f(arg1, arg2, arg3)); |
- | |
721 | } |
- | |
722 | - | ||
723 | return 1; |
- | |
724 | } |
- | |
725 | - | ||
726 | - | ||
727 | /** Print detailed description of 'describe' command. */ |
- | |
728 | void desc_help(void) |
- | |
729 | { |
- | |
730 | printf("Syntax: describe command_name\n"); |
- | |
731 | } |
- | |
732 | - | ||
733 | /** Halt the kernel. |
- | |
734 | * |
- | |
735 | * @param argv Argument vector (ignored). |
- | |
736 | * |
- | |
737 | * @return 0 on failure, 1 on success (never returns). |
- | |
738 | */ |
- | |
739 | int cmd_halt(cmd_arg_t *argv) |
- | |
740 | { |
- | |
741 | halt(); |
- | |
742 | return 1; |
- | |
743 | } |
- | |
744 | 350 |