source: mainline/kernel/generic/src/console/kconsole.c@ fc0de8c

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since fc0de8c was 8df5f20, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 6 years ago

Rename NO_TRACE to _NO_TRACE

<trace.h> may end up transitively included from standard headers,
so it needs to be a reserved identifier.
  • Property mode set to 100644
File size: 19.1 KB
Line 
1/*
2 * Copyright (c) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
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
15 * derived from this software without specific prior written permission.
16 *
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
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup kernel_generic_console
30 * @{
31 */
32
33/**
34 * @file kconsole.c
35 * @brief Kernel console.
36 *
37 * This file contains kernel thread managing the kernel console.
38 *
39 */
40
41#include <assert.h>
42#include <console/kconsole.h>
43#include <console/console.h>
44#include <console/chardev.h>
45#include <console/cmd.h>
46#include <console/prompt.h>
47#include <stdio.h>
48#include <panic.h>
49#include <typedefs.h>
50#include <adt/list.h>
51#include <arch.h>
52#include <macros.h>
53#include <debug.h>
54#include <halt.h>
55#include <str.h>
56#include <sysinfo/sysinfo.h>
57#include <symtab.h>
58#include <errno.h>
59#include <putchar.h>
60#include <stdlib.h>
61
62/** Simple kernel console.
63 *
64 * The console is realized by kernel thread kconsole.
65 * It doesn't understand any useful command on its own,
66 * but makes it possible for other kernel subsystems to
67 * register their own commands.
68 */
69
70/** Locking.
71 *
72 * There is a list of cmd_info_t structures. This list
73 * is protected by cmd_lock spinlock. Note that specially
74 * the link elements of cmd_info_t are protected by
75 * this lock.
76 *
77 * Each cmd_info_t also has its own lock, which protects
78 * all elements thereof except the link element.
79 *
80 * cmd_lock must be acquired before any cmd_info lock.
81 * When locking two cmd info structures, structure with
82 * lower address must be locked first.
83 */
84
85SPINLOCK_INITIALIZE(cmd_lock); /**< Lock protecting command list. */
86LIST_INITIALIZE(cmd_list); /**< Command list. */
87
88static wchar_t history[KCONSOLE_HISTORY][MAX_CMDLINE] = { };
89static size_t history_pos = 0;
90
91/** Initialize kconsole data structures
92 *
93 * This is the most basic initialization, almost no
94 * other kernel subsystem is ready yet.
95 *
96 */
97void kconsole_init(void)
98{
99 unsigned int i;
100
101 cmd_init();
102 for (i = 0; i < KCONSOLE_HISTORY; i++)
103 history[i][0] = 0;
104}
105
106/** Register kconsole command.
107 *
108 * @param cmd Structure describing the command.
109 *
110 * @return False on failure, true on success.
111 *
112 */
113bool cmd_register(cmd_info_t *cmd)
114{
115 spinlock_lock(&cmd_lock);
116
117 /*
118 * Make sure the command is not already listed.
119 */
120 list_foreach(cmd_list, link, cmd_info_t, hlp) {
121 if (hlp == cmd) {
122 /* The command is already there. */
123 spinlock_unlock(&cmd_lock);
124 return false;
125 }
126
127 /* Avoid deadlock. */
128 if (hlp < cmd) {
129 spinlock_lock(&hlp->lock);
130 spinlock_lock(&cmd->lock);
131 } else {
132 spinlock_lock(&cmd->lock);
133 spinlock_lock(&hlp->lock);
134 }
135
136 if (str_cmp(hlp->name, cmd->name) == 0) {
137 /* The command is already there. */
138 spinlock_unlock(&hlp->lock);
139 spinlock_unlock(&cmd->lock);
140 spinlock_unlock(&cmd_lock);
141 return false;
142 }
143
144 spinlock_unlock(&hlp->lock);
145 spinlock_unlock(&cmd->lock);
146 }
147
148 /*
149 * Now the command can be added.
150 */
151 list_append(&cmd->link, &cmd_list);
152
153 spinlock_unlock(&cmd_lock);
154 return true;
155}
156
157/** Print count times a character */
158_NO_TRACE static void print_cc(wchar_t ch, size_t count)
159{
160 size_t i;
161 for (i = 0; i < count; i++)
162 putwchar(ch);
163}
164
165/** Try to find a command beginning with prefix */
166const char *cmdtab_enum(const char *name, const char **h, void **ctx)
167{
168 link_t **startpos = (link_t **) ctx;
169 size_t namelen = str_length(name);
170
171 spinlock_lock(&cmd_lock);
172
173 if (*startpos == NULL)
174 *startpos = cmd_list.head.next;
175
176 for (; *startpos != &cmd_list.head; *startpos = (*startpos)->next) {
177 cmd_info_t *hlp = list_get_instance(*startpos, cmd_info_t, link);
178
179 const char *curname = hlp->name;
180 if (str_length(curname) < namelen)
181 continue;
182
183 if (str_lcmp(curname, name, namelen) == 0) {
184 *startpos = (*startpos)->next;
185 if (h)
186 *h = hlp->description;
187
188 spinlock_unlock(&cmd_lock);
189 return (curname + str_lsize(curname, namelen));
190 }
191 }
192
193 spinlock_unlock(&cmd_lock);
194 return NULL;
195}
196
197/** Command completion of the commands
198 *
199 * @param name String to match, changed to hint on exit
200 * @param size Input buffer size
201 *
202 * @return Number of found matches
203 *
204 */
205_NO_TRACE static int cmdtab_compl(char *input, size_t size, indev_t *indev,
206 hints_enum_func_t hints_enum)
207{
208 const char *name = input;
209
210 size_t found = 0;
211
212 /*
213 * Maximum Match Length: Length of longest matching common
214 * substring in case more than one match is found.
215 */
216 size_t max_match_len = size;
217 size_t max_match_len_tmp = size;
218 void *pos = NULL;
219 const char *hint;
220 const char *help;
221 size_t hints_to_show = MAX_TAB_HINTS - 1;
222 size_t total_hints_shown = 0;
223 bool continue_showing_hints = true;
224
225 char *output = malloc(MAX_CMDLINE);
226 if (!output) {
227 // TODO: fix the function so that it does not need allocation
228 printf("Can't complete command, out of memory.\n");
229 return 0;
230 }
231
232 output[0] = 0;
233
234 while ((hint = hints_enum(name, NULL, &pos))) {
235 if ((found == 0) || (str_length(hint) > str_length(output)))
236 str_cpy(output, MAX_CMDLINE, hint);
237
238 found++;
239 }
240
241 /*
242 * If the number of possible completions is more than MAX_TAB_HINTS,
243 * ask the user whether to display them or not.
244 */
245 if (found > MAX_TAB_HINTS) {
246 printf("\n");
247 continue_showing_hints =
248 console_prompt_display_all_hints(indev, found);
249 }
250
251 if ((found > 1) && (str_length(output) != 0)) {
252 printf("\n");
253 pos = NULL;
254 while ((hint = hints_enum(name, &help, &pos))) {
255
256 if (continue_showing_hints) {
257 if (help)
258 printf("%s%s (%s)\n", name, hint, help);
259 else
260 printf("%s%s\n", name, hint);
261
262 --hints_to_show;
263 ++total_hints_shown;
264
265 if ((hints_to_show == 0) && (total_hints_shown != found)) {
266 /* Ask user to continue */
267 continue_showing_hints =
268 console_prompt_more_hints(indev, &hints_to_show);
269 }
270 }
271
272 max_match_len_tmp = 0;
273 while ((output[max_match_len_tmp] ==
274 hint[max_match_len_tmp]) &&
275 (max_match_len_tmp < max_match_len))
276 ++max_match_len_tmp;
277
278 max_match_len = max_match_len_tmp;
279 }
280
281 /* Keep only the characters common in all completions */
282 output[max_match_len] = 0;
283 }
284
285 if (found > 0)
286 str_cpy(input, size, output);
287
288 free(output);
289 return found;
290}
291
292_NO_TRACE static cmd_info_t *parse_cmd(const wchar_t *cmdline)
293{
294 size_t start = 0;
295 size_t end;
296 char *tmp;
297
298 while (isspace(cmdline[start]))
299 start++;
300
301 end = start + 1;
302
303 while (!isspace(cmdline[end]))
304 end++;
305
306 tmp = malloc(STR_BOUNDS(end - start + 1));
307 if (!tmp)
308 return NULL;
309
310 wstr_to_str(tmp, end - start + 1, &cmdline[start]);
311
312 spinlock_lock(&cmd_lock);
313
314 list_foreach(cmd_list, link, cmd_info_t, hlp) {
315 spinlock_lock(&hlp->lock);
316
317 if (str_cmp(hlp->name, tmp) == 0) {
318 spinlock_unlock(&hlp->lock);
319 spinlock_unlock(&cmd_lock);
320 free(tmp);
321 return hlp;
322 }
323
324 spinlock_unlock(&hlp->lock);
325 }
326
327 free(tmp);
328 spinlock_unlock(&cmd_lock);
329
330 return NULL;
331}
332
333_NO_TRACE static wchar_t *clever_readline(const char *prompt, indev_t *indev,
334 char *tmp)
335{
336 printf("%s> ", prompt);
337
338 size_t position = 0;
339 wchar_t *current = history[history_pos];
340 current[0] = 0;
341
342 while (true) {
343 wchar_t ch = indev_pop_character(indev);
344
345 if (ch == '\n') {
346 /* Enter */
347 putwchar(ch);
348 break;
349 }
350
351 if (ch == '\b') {
352 /* Backspace */
353 if (position == 0)
354 continue;
355
356 if (wstr_remove(current, position - 1)) {
357 position--;
358 putwchar('\b');
359 printf("%ls ", current + position);
360 print_cc('\b', wstr_length(current) - position + 1);
361 continue;
362 }
363 }
364
365 if (ch == '\t') {
366 /* Tab completion */
367
368 /* Move to the end of the word */
369 for (; (current[position] != 0) && (!isspace(current[position]));
370 position++)
371 putwchar(current[position]);
372
373 /*
374 * Find the beginning of the word
375 * and copy it to tmp
376 */
377 size_t beg;
378 unsigned narg = 0;
379 if (position == 0) {
380 tmp[0] = '\0';
381 beg = 0;
382 } else {
383 beg = position - 1;
384 while ((beg > 0) && (!isspace(current[beg])))
385 beg--;
386
387 if (isspace(current[beg]))
388 beg++;
389
390 wstr_to_str(tmp, position - beg + 1, current + beg);
391 }
392
393 /* Count which argument number are we tabbing (narg=0 is cmd) */
394 bool sp = false;
395 for (; beg > 0; beg--) {
396 if (isspace(current[beg])) {
397 if (!sp) {
398 narg++;
399 sp = true;
400 }
401 } else
402 sp = false;
403 }
404
405 if (narg && isspace(current[0]))
406 narg--;
407
408 int found;
409 if (narg == 0) {
410 /* Command completion */
411 found = cmdtab_compl(tmp, STR_BOUNDS(MAX_CMDLINE), indev,
412 cmdtab_enum);
413 } else {
414 /* Arguments completion */
415 cmd_info_t *cmd = parse_cmd(current);
416 if (!cmd || !cmd->hints_enum || cmd->argc < narg)
417 continue;
418 found = cmdtab_compl(tmp, STR_BOUNDS(MAX_CMDLINE), indev,
419 cmd->hints_enum);
420 }
421
422 if (found == 0)
423 continue;
424
425 /*
426 * We have hints, possibly many. In case of more than one hint,
427 * tmp will contain the common prefix.
428 */
429 size_t off = 0;
430 size_t i = 0;
431 while ((ch = str_decode(tmp, &off, STR_NO_LIMIT)) != 0) {
432 if (!wstr_linsert(current, ch, position + i, MAX_CMDLINE))
433 break;
434
435 i++;
436 }
437
438 if (found > 1) {
439 /* No unique hint, list was printed */
440 printf("%s> ", prompt);
441 printf("%ls", current);
442 position += str_length(tmp);
443 print_cc('\b', wstr_length(current) - position);
444 continue;
445 }
446
447 /* We have a hint */
448
449 printf("%ls", current + position);
450 position += str_length(tmp);
451 print_cc('\b', wstr_length(current) - position);
452
453 if (position == wstr_length(current)) {
454 /* Insert a space after the last completed argument */
455 if (wstr_linsert(current, ' ', position, MAX_CMDLINE)) {
456 printf("%ls", current + position);
457 position++;
458 }
459 }
460 continue;
461 }
462
463 if (ch == U_LEFT_ARROW) {
464 /* Left */
465 if (position > 0) {
466 putwchar('\b');
467 position--;
468 }
469 continue;
470 }
471
472 if (ch == U_RIGHT_ARROW) {
473 /* Right */
474 if (position < wstr_length(current)) {
475 putwchar(current[position]);
476 position++;
477 }
478 continue;
479 }
480
481 if ((ch == U_UP_ARROW) || (ch == U_DOWN_ARROW)) {
482 /* Up, down */
483 print_cc('\b', position);
484 print_cc(' ', wstr_length(current));
485 print_cc('\b', wstr_length(current));
486
487 if (ch == U_UP_ARROW) {
488 /* Up */
489 if (history_pos == 0)
490 history_pos = KCONSOLE_HISTORY - 1;
491 else
492 history_pos--;
493 } else {
494 /* Down */
495 history_pos++;
496 history_pos = history_pos % KCONSOLE_HISTORY;
497 }
498 current = history[history_pos];
499 printf("%ls", current);
500 position = wstr_length(current);
501 continue;
502 }
503
504 if (ch == U_HOME_ARROW) {
505 /* Home */
506 print_cc('\b', position);
507 position = 0;
508 continue;
509 }
510
511 if (ch == U_END_ARROW) {
512 /* End */
513 printf("%ls", current + position);
514 position = wstr_length(current);
515 continue;
516 }
517
518 if (ch == U_DELETE) {
519 /* Delete */
520 if (position == wstr_length(current))
521 continue;
522
523 if (wstr_remove(current, position)) {
524 printf("%ls ", current + position);
525 print_cc('\b', wstr_length(current) - position + 1);
526 }
527 continue;
528 }
529
530 if (wstr_linsert(current, ch, position, MAX_CMDLINE)) {
531 printf("%ls", current + position);
532 position++;
533 print_cc('\b', wstr_length(current) - position);
534 }
535 }
536
537 if (wstr_length(current) > 0) {
538 history_pos++;
539 history_pos = history_pos % KCONSOLE_HISTORY;
540 }
541
542 return current;
543}
544
545bool kconsole_check_poll(void)
546{
547 return check_poll(stdin);
548}
549
550_NO_TRACE static bool parse_int_arg(const char *text, size_t len,
551 sysarg_t *result)
552{
553 bool isaddr = false;
554 bool isptr = false;
555
556 /* If we get a name, try to find it in symbol table */
557 if (text[0] == '&') {
558 isaddr = true;
559 text++;
560 len--;
561 } else if (text[0] == '*') {
562 isptr = true;
563 text++;
564 len--;
565 }
566
567 if ((text[0] < '0') || (text[0] > '9')) {
568 char symname[MAX_SYMBOL_NAME];
569 str_ncpy(symname, MAX_SYMBOL_NAME, text, len + 1);
570
571 uintptr_t symaddr;
572 errno_t rc = symtab_addr_lookup(symname, &symaddr);
573 switch (rc) {
574 case ENOENT:
575 printf("Symbol %s not found.\n", symname);
576 return false;
577 case EOVERFLOW:
578 printf("Duplicate symbol %s.\n", symname);
579 symtab_print_search(symname);
580 return false;
581 case ENOTSUP:
582 printf("No symbol information available.\n");
583 return false;
584 case EOK:
585 if (isaddr)
586 *result = (sysarg_t) symaddr;
587 else if (isptr)
588 *result = **((sysarg_t **) symaddr);
589 else
590 *result = *((sysarg_t *) symaddr);
591 break;
592 default:
593 printf("Unknown error.\n");
594 return false;
595 }
596 } else {
597 /* It's a number - convert it */
598 uint64_t value;
599 char *end;
600 errno_t rc = str_uint64_t(text, &end, 0, false, &value);
601 if (end != text + len)
602 rc = EINVAL;
603 switch (rc) {
604 case EINVAL:
605 printf("Invalid number '%s'.\n", text);
606 return false;
607 case EOVERFLOW:
608 printf("Integer overflow in '%s'.\n", text);
609 return false;
610 case EOK:
611 *result = (sysarg_t) value;
612 if (isptr)
613 *result = *((sysarg_t *) *result);
614 break;
615 default:
616 printf("Unknown error parsing '%s'.\n", text);
617 return false;
618 }
619 }
620
621 return true;
622}
623
624/** Parse argument.
625 *
626 * Find start and end positions of command line argument.
627 *
628 * @param cmdline Command line as read from the input device.
629 * @param size Size (in bytes) of the string.
630 * @param start On entry, 'start' contains pointer to the offset
631 * of the first unprocessed character of cmdline.
632 * On successful exit, it marks beginning of the next argument.
633 * @param end Undefined on entry. On exit, 'end' is the offset of the first
634 * character behind the next argument.
635 *
636 * @return False on failure, true on success.
637 *
638 */
639_NO_TRACE static bool parse_argument(const char *cmdline, size_t size,
640 size_t *start, size_t *end)
641{
642 assert(start != NULL);
643 assert(end != NULL);
644
645 bool found_start = false;
646 size_t offset = *start;
647 size_t prev = *start;
648 wchar_t ch;
649
650 while ((ch = str_decode(cmdline, &offset, size)) != 0) {
651 if (!found_start) {
652 if (!isspace(ch)) {
653 *start = prev;
654 found_start = true;
655 }
656 } else {
657 if (isspace(ch))
658 break;
659 }
660
661 prev = offset;
662 }
663 *end = prev;
664
665 return found_start;
666}
667
668/** Parse command line.
669 *
670 * @param cmdline Command line as read from input device.
671 * @param size Size (in bytes) of the string.
672 *
673 * @return Structure describing the command.
674 *
675 */
676_NO_TRACE static cmd_info_t *parse_cmdline(const char *cmdline, size_t size)
677{
678 size_t start = 0;
679 size_t end = 0;
680 if (!parse_argument(cmdline, size, &start, &end)) {
681 /* Command line did not contain alphanumeric word. */
682 return NULL;
683 }
684 spinlock_lock(&cmd_lock);
685
686 cmd_info_t *cmd = NULL;
687
688 list_foreach(cmd_list, link, cmd_info_t, hlp) {
689 spinlock_lock(&hlp->lock);
690
691 if (str_lcmp(hlp->name, cmdline + start,
692 max(str_length(hlp->name),
693 str_nlength(cmdline + start, (size_t) (end - start)))) == 0) {
694 cmd = hlp;
695 break;
696 }
697
698 spinlock_unlock(&hlp->lock);
699 }
700
701 spinlock_unlock(&cmd_lock);
702
703 if (!cmd) {
704 /* Unknown command. */
705 printf("Unknown command.\n");
706 return NULL;
707 }
708
709 /* cmd == hlp is locked */
710
711 /*
712 * The command line must be further analyzed and
713 * the parameters therefrom must be matched and
714 * converted to those specified in the cmd info
715 * structure.
716 */
717
718 bool error = false;
719 size_t i;
720 for (i = 0; i < cmd->argc; i++) {
721 char *buf;
722
723 start = end;
724 if (!parse_argument(cmdline, size, &start, &end)) {
725 if (cmd->argv[i].type == ARG_TYPE_STRING_OPTIONAL) {
726 buf = (char *) cmd->argv[i].buffer;
727 str_cpy(buf, cmd->argv[i].len, "");
728 continue;
729 }
730
731 printf("Too few arguments.\n");
732 spinlock_unlock(&cmd->lock);
733 return NULL;
734 }
735
736 switch (cmd->argv[i].type) {
737 case ARG_TYPE_STRING:
738 case ARG_TYPE_STRING_OPTIONAL:
739 buf = (char *) cmd->argv[i].buffer;
740 str_ncpy(buf, cmd->argv[i].len, cmdline + start,
741 end - start);
742 break;
743 case ARG_TYPE_INT:
744 if (!parse_int_arg(cmdline + start, end - start,
745 &cmd->argv[i].intval))
746 error = true;
747 break;
748 case ARG_TYPE_VAR:
749 if ((start < end - 1) && (cmdline[start] == '"')) {
750 if (cmdline[end - 1] == '"') {
751 buf = (char *) cmd->argv[i].buffer;
752 str_ncpy(buf, cmd->argv[i].len,
753 cmdline + start + 1,
754 (end - start) - 1);
755 cmd->argv[i].intval = (sysarg_t) buf;
756 cmd->argv[i].vartype = ARG_TYPE_STRING;
757 } else {
758 printf("Wrong syntax.\n");
759 error = true;
760 }
761 } else if (parse_int_arg(cmdline + start,
762 end - start, &cmd->argv[i].intval)) {
763 cmd->argv[i].vartype = ARG_TYPE_INT;
764 } else {
765 printf("Unrecognized variable argument.\n");
766 error = true;
767 }
768 break;
769 case ARG_TYPE_INVALID:
770 default:
771 printf("Invalid argument type\n");
772 error = true;
773 break;
774 }
775 }
776
777 if (error) {
778 spinlock_unlock(&cmd->lock);
779 return NULL;
780 }
781
782 start = end;
783 if (parse_argument(cmdline, size, &start, &end)) {
784 printf("Too many arguments.\n");
785 spinlock_unlock(&cmd->lock);
786 return NULL;
787 }
788
789 spinlock_unlock(&cmd->lock);
790 return cmd;
791}
792
793/** Kernel console prompt.
794 *
795 * @param prompt Kernel console prompt (e.g kconsole/panic).
796 * @param msg Message to display in the beginning.
797 * @param kcon Wait for keypress to show the prompt
798 * and never exit.
799 *
800 */
801void kconsole(const char *prompt, const char *msg, bool kcon)
802{
803 if (!stdin) {
804 LOG("No stdin for kernel console");
805 return;
806 }
807
808 if (msg)
809 printf("%s", msg);
810
811 if (kcon)
812 indev_pop_character(stdin);
813 else
814 printf("Type \"exit\" to leave the console.\n");
815
816 char *buffer = malloc(STR_BOUNDS(MAX_CMDLINE));
817 char *cmdline = malloc(STR_BOUNDS(MAX_CMDLINE));
818 if (!buffer || !cmdline) {
819 // TODO: fix the function so that it does not need allocations
820 printf("Can't start console, out of memory.\n");
821 free(buffer);
822 free(cmdline);
823 return;
824 }
825
826 while (true) {
827 wchar_t *tmp = clever_readline((char *) prompt, stdin, buffer);
828 size_t len = wstr_length(tmp);
829 if (!len)
830 continue;
831
832 wstr_to_str(cmdline, STR_BOUNDS(MAX_CMDLINE), tmp);
833
834 if ((!kcon) && (len == 4) && (str_lcmp(cmdline, "exit", 4) == 0))
835 break;
836
837 cmd_info_t *cmd_info = parse_cmdline(cmdline, STR_BOUNDS(MAX_CMDLINE));
838 if (!cmd_info)
839 continue;
840
841 (void) cmd_info->func(cmd_info->argv);
842 }
843 free(buffer);
844 free(cmdline);
845}
846
847/** Kernel console managing thread.
848 *
849 */
850void kconsole_thread(void *data)
851{
852 kconsole("kconsole", "Kernel console ready (press any key to activate)\n", true);
853}
854
855/** @}
856 */
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