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Upstream a whole host of RISC-V changes.
[openocd.git] / src / rtos / rtos.c
blobf401c3d30bdacfe7b07b6c1d5f6324b35ff64c6c
1 /***************************************************************************
2 * Copyright (C) 2011 by Broadcom Corporation *
3 * Evan Hunter - ehunter@broadcom.com *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
18
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22
23 #include "rtos.h"
24 #include "target/target.h"
25 #include "helper/log.h"
26 #include "helper/binarybuffer.h"
27 #include "server/gdb_server.h"
28
29 /* RTOSs */
30 extern struct rtos_type freertos_rtos;
31 extern struct rtos_type threadx_rtos;
32 extern struct rtos_type ecos_rtos;
33 extern struct rtos_type linux_rtos;
34 extern struct rtos_type chibios_rtos;
35 extern struct rtos_type chromium_ec_rtos;
36 extern struct rtos_type embkernel_rtos;
37 extern struct rtos_type mqx_rtos;
38 extern struct rtos_type ucos_iii_rtos;
39 extern struct rtos_type nuttx_rtos;
40 extern struct rtos_type hwthread_rtos;
41 extern struct rtos_type riot_rtos;
42 extern struct rtos_type zephyr_rtos;
43
44 static struct rtos_type *rtos_types[] = {
45 &threadx_rtos,
46 &freertos_rtos,
47 &ecos_rtos,
48 &linux_rtos,
49 &chibios_rtos,
50 &chromium_ec_rtos,
51 &embkernel_rtos,
52 &mqx_rtos,
53 &ucos_iii_rtos,
54 &nuttx_rtos,
55 &riot_rtos,
56 &zephyr_rtos,
57 /* keep this as last, as it always matches with rtos auto */
58 &hwthread_rtos,
59 NULL
60 };
61
62 static int rtos_try_next(struct target *target);
63
64 int rtos_thread_packet(struct connection *connection, const char *packet, int packet_size);
65
66 int rtos_smp_init(struct target *target)
67 {
68 if (target->rtos->type->smp_init)
69 return target->rtos->type->smp_init(target);
70 return ERROR_TARGET_INIT_FAILED;
71 }
72
73 static int rtos_target_for_threadid(struct connection *connection, int64_t threadid, struct target **t)
74 {
75 struct target *curr = get_target_from_connection(connection);
76 if (t)
77 *t = curr;
78
79 return ERROR_OK;
80 }
81
82 static int os_alloc(struct target *target, struct rtos_type *ostype)
83 {
84 struct rtos *os = target->rtos = calloc(1, sizeof(struct rtos));
85
86 if (!os)
87 return JIM_ERR;
88
89 os->type = ostype;
90 os->current_threadid = -1;
91 os->current_thread = 0;
92 os->symbols = NULL;
93 os->target = target;
94
95 /* RTOS drivers can override the packet handler in _create(). */
96 os->gdb_thread_packet = rtos_thread_packet;
97 os->gdb_target_for_threadid = rtos_target_for_threadid;
98
99 return JIM_OK;
100 }
101
102 static void os_free(struct target *target)
103 {
104 if (!target->rtos)
105 return;
106
107 free(target->rtos->symbols);
108 free(target->rtos);
109 target->rtos = NULL;
110 }
111
112 static int os_alloc_create(struct target *target, struct rtos_type *ostype)
113 {
114 int ret = os_alloc(target, ostype);
115
116 if (ret == JIM_OK) {
117 ret = target->rtos->type->create(target);
118 if (ret != JIM_OK)
119 os_free(target);
120 }
121
122 return ret;
123 }
124
125 int rtos_create(struct jim_getopt_info *goi, struct target *target)
126 {
127 int x;
128 const char *cp;
129 Jim_Obj *res;
130 int e;
131
132 if (!goi->isconfigure && goi->argc != 0) {
133 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "NO PARAMS");
134 return JIM_ERR;
135 }
136
137 os_free(target);
138
139 e = jim_getopt_string(goi, &cp, NULL);
140 if (e != JIM_OK)
141 return e;
142
143 if (strcmp(cp, "auto") == 0) {
144 /* Auto detect tries to look up all symbols for each RTOS,
145 * and runs the RTOS driver's _detect() function when GDB
146 * finds all symbols for any RTOS. See rtos_qsymbol(). */
147 target->rtos_auto_detect = true;
148
149 /* rtos_qsymbol() will iterate over all RTOSes. Allocate
150 * target->rtos here, and set it to the first RTOS type. */
151 return os_alloc(target, rtos_types[0]);
152 }
153
154 for (x = 0; rtos_types[x]; x++)
155 if (strcmp(cp, rtos_types[x]->name) == 0)
156 return os_alloc_create(target, rtos_types[x]);
157
158 Jim_SetResultFormatted(goi->interp, "Unknown RTOS type %s, try one of: ", cp);
159 res = Jim_GetResult(goi->interp);
160 for (x = 0; rtos_types[x]; x++)
161 Jim_AppendStrings(goi->interp, res, rtos_types[x]->name, ", ", NULL);
162 Jim_AppendStrings(goi->interp, res, " or auto", NULL);
163
164 return JIM_ERR;
165 }
166
167 void rtos_destroy(struct target *target)
168 {
169 os_free(target);
170 }
171
172 int gdb_thread_packet(struct connection *connection, char const *packet, int packet_size)
173 {
174 struct target *target = get_target_from_connection(connection);
175 if (!target->rtos)
176 return rtos_thread_packet(connection, packet, packet_size); /* thread not
177 *found*/
178 return target->rtos->gdb_thread_packet(connection, packet, packet_size);
179 }
180
181 static struct symbol_table_elem *next_symbol(struct rtos *os, char *cur_symbol, uint64_t cur_addr)
182 {
183 struct symbol_table_elem *s;
184
185 if (!os->symbols)
186 os->type->get_symbol_list_to_lookup(&os->symbols);
187
188 if (!cur_symbol[0])
189 return &os->symbols[0];
190
191 for (s = os->symbols; s->symbol_name; s++)
192 if (!strcmp(s->symbol_name, cur_symbol)) {
193 s->address = cur_addr;
194 s++;
195 return s;
196 }
197
198 return NULL;
199 }
200
201 /* searches for 'symbol' in the lookup table for 'os' and returns TRUE,
202 * if 'symbol' is not declared optional */
203 static bool is_symbol_mandatory(const struct rtos *os, const char *symbol)
204 {
205 for (struct symbol_table_elem *s = os->symbols; s->symbol_name; ++s) {
206 if (!strcmp(s->symbol_name, symbol))
207 return !s->optional;
208 }
209 return false;
210 }
211
212 /* rtos_qsymbol() processes and replies to all qSymbol packets from GDB.
213 *
214 * GDB sends a qSymbol:: packet (empty address, empty name) to notify
215 * that it can now answer qSymbol::hexcodedname queries, to look up symbols.
216 *
217 * If the qSymbol packet has no address that means GDB did not find the
218 * symbol, in which case auto-detect will move on to try the next RTOS.
219 *
220 * rtos_qsymbol() then calls the next_symbol() helper function, which
221 * iterates over symbol names for the current RTOS until it finds the
222 * symbol in the received GDB packet, and then returns the next entry
223 * in the list of symbols.
224 *
225 * If GDB replied about the last symbol for the RTOS and the RTOS was
226 * specified explicitly, then no further symbol lookup is done. When
227 * auto-detecting, the RTOS driver _detect() function must return success.
228 *
229 * rtos_qsymbol() returns 1 if an RTOS has been detected, or 0 otherwise.
230 */
231 int rtos_qsymbol(struct connection *connection, char const *packet, int packet_size)
232 {
233 int rtos_detected = 0;
234 uint64_t addr = 0;
235 size_t reply_len;
236 char reply[GDB_BUFFER_SIZE + 1], cur_sym[GDB_BUFFER_SIZE / 2 + 1] = ""; /* Extra byte for null-termination */
237 struct symbol_table_elem *next_sym;
238 struct target *target = get_target_from_connection(connection);
239 struct rtos *os = target->rtos;
240
241 reply_len = sprintf(reply, "OK");
242
243 if (!os)
244 goto done;
245
246 /* Decode any symbol name in the packet*/
247 size_t len = unhexify((uint8_t *)cur_sym, strchr(packet + 8, ':') + 1, strlen(strchr(packet + 8, ':') + 1));
248 cur_sym[len] = 0;
249
250 if ((strcmp(packet, "qSymbol::") != 0) && /* GDB is not offering symbol lookup for the first time */
251 (!sscanf(packet, "qSymbol:%" SCNx64 ":", &addr)) && /* GDB did not find an address for a symbol */
252 is_symbol_mandatory(os, cur_sym)) { /* the symbol is mandatory for this RTOS */
253
254 /* GDB could not find an address for the previous symbol */
255 if (!target->rtos_auto_detect) {
256 LOG_WARNING("RTOS %s not detected. (GDB could not find symbol \'%s\')", os->type->name, cur_sym);
257 goto done;
258 } else {
259 /* Autodetecting RTOS - try next RTOS */
260 if (!rtos_try_next(target)) {
261 LOG_WARNING("No RTOS could be auto-detected!");
262 goto done;
263 }
264
265 /* Next RTOS selected - invalidate current symbol */
266 cur_sym[0] = '\x00';
267 }
268 }
269
270 LOG_DEBUG("RTOS: Address of symbol '%s' is 0x%" PRIx64, cur_sym, addr);
271
272 next_sym = next_symbol(os, cur_sym, addr);
273
274 /* Should never happen unless the debugger misbehaves */
275 if (!next_sym) {
276 LOG_WARNING("RTOS: Debugger sent us qSymbol with '%s' that we did not ask for", cur_sym);
277 goto done;
278 }
279
280 if (!next_sym->symbol_name) {
281 /* No more symbols need looking up */
282
283 if (!target->rtos_auto_detect) {
284 rtos_detected = 1;
285 goto done;
286 }
287
288 if (os->type->detect_rtos(target)) {
289 LOG_INFO("Auto-detected RTOS: %s", os->type->name);
290 rtos_detected = 1;
291 goto done;
292 } else {
293 LOG_WARNING("No RTOS could be auto-detected!");
294 goto done;
295 }
296 }
297
298 if (8 + (strlen(next_sym->symbol_name) * 2) + 1 > sizeof(reply)) {
299 LOG_ERROR("ERROR: RTOS symbol '%s' name is too long for GDB!", next_sym->symbol_name);
300 goto done;
301 }
302
303 LOG_DEBUG("RTOS: Requesting symbol lookup of '%s' from the debugger", next_sym->symbol_name);
304
305 reply_len = snprintf(reply, sizeof(reply), "qSymbol:");
306 reply_len += hexify(reply + reply_len,
307 (const uint8_t *)next_sym->symbol_name, strlen(next_sym->symbol_name),
308 sizeof(reply) - reply_len);
309
310 done:
311 gdb_put_packet(connection, reply, reply_len);
312 return rtos_detected;
313 }
314
315 int rtos_thread_packet(struct connection *connection, char const *packet, int packet_size)
316 {
317 struct target *target = get_target_from_connection(connection);
318
319 if (strncmp(packet, "qThreadExtraInfo,", 17) == 0) {
320 if ((target->rtos) && (target->rtos->thread_details) &&
321 (target->rtos->thread_count != 0)) {
322 threadid_t threadid = 0;
323 int found = -1;
324 sscanf(packet, "qThreadExtraInfo,%" SCNx64, &threadid);
325
326 if ((target->rtos) && (target->rtos->thread_details)) {
327 int thread_num;
328 for (thread_num = 0; thread_num < target->rtos->thread_count; thread_num++) {
329 if (target->rtos->thread_details[thread_num].threadid == threadid) {
330 if (target->rtos->thread_details[thread_num].exists)
331 found = thread_num;
332 }
333 }
334 }
335 if (found == -1) {
336 gdb_put_packet(connection, "E01", 3); /* thread not found */
337 return ERROR_OK;
338 }
339
340 struct thread_detail *detail = &target->rtos->thread_details[found];
341
342 int str_size = 0;
343 if (detail->thread_name_str)
344 str_size += strlen(detail->thread_name_str);
345 if (detail->extra_info_str)
346 str_size += strlen(detail->extra_info_str);
347
348 char *tmp_str = calloc(str_size + 9, sizeof(char));
349 char *tmp_str_ptr = tmp_str;
350
351 if (detail->thread_name_str)
352 tmp_str_ptr += sprintf(tmp_str_ptr, "Name: %s", detail->thread_name_str);
353 if (detail->extra_info_str) {
354 if (tmp_str_ptr != tmp_str)
355 tmp_str_ptr += sprintf(tmp_str_ptr, ", ");
356 tmp_str_ptr += sprintf(tmp_str_ptr, "%s", detail->extra_info_str);
357 }
358
359 assert(strlen(tmp_str) ==
360 (size_t) (tmp_str_ptr - tmp_str));
361
362 char *hex_str = malloc(strlen(tmp_str) * 2 + 1);
363 size_t pkt_len = hexify(hex_str, (const uint8_t *)tmp_str,
364 strlen(tmp_str), strlen(tmp_str) * 2 + 1);
365
366 gdb_put_packet(connection, hex_str, pkt_len);
367 free(hex_str);
368 free(tmp_str);
369 return ERROR_OK;
370
371 }
372 gdb_put_packet(connection, "", 0);
373 return ERROR_OK;
374 } else if (strncmp(packet, "qSymbol", 7) == 0) {
375 if (rtos_qsymbol(connection, packet, packet_size) == 1) {
376 if (target->rtos_auto_detect == true) {
377 target->rtos_auto_detect = false;
378 target->rtos->type->create(target);
379 }
380 target->rtos->type->update_threads(target->rtos);
381 }
382 return ERROR_OK;
383 } else if (strncmp(packet, "qfThreadInfo", 12) == 0) {
384 int i;
385 if (target->rtos) {
386 if (target->rtos->thread_count == 0) {
387 gdb_put_packet(connection, "l", 1);
388 } else {
389 /*thread id are 16 char +1 for ',' */
390 char *out_str = malloc(17 * target->rtos->thread_count + 1);
391 char *tmp_str = out_str;
392 for (i = 0; i < target->rtos->thread_count; i++) {
393 tmp_str += sprintf(tmp_str, "%c%016" PRIx64, i == 0 ? 'm' : ',',
394 target->rtos->thread_details[i].threadid);
395 }
396 gdb_put_packet(connection, out_str, strlen(out_str));
397 free(out_str);
398 }
399 } else
400 gdb_put_packet(connection, "l", 1);
401
402 return ERROR_OK;
403 } else if (strncmp(packet, "qsThreadInfo", 12) == 0) {
404 gdb_put_packet(connection, "l", 1);
405 return ERROR_OK;
406 } else if (strncmp(packet, "qAttached", 9) == 0) {
407 gdb_put_packet(connection, "1", 1);
408 return ERROR_OK;
409 } else if (strncmp(packet, "qOffsets", 8) == 0) {
410 char offsets[] = "Text=0;Data=0;Bss=0";
411 gdb_put_packet(connection, offsets, sizeof(offsets)-1);
412 return ERROR_OK;
413 } else if (strncmp(packet, "qCRC:", 5) == 0) {
414 /* make sure we check this before "qC" packet below
415 * otherwise it gets incorrectly handled */
416 return GDB_THREAD_PACKET_NOT_CONSUMED;
417 } else if (strncmp(packet, "qC", 2) == 0) {
418 if (target->rtos) {
419 char buffer[19];
420 int size;
421 size = snprintf(buffer, 19, "QC%016" PRIx64, target->rtos->current_thread);
422 gdb_put_packet(connection, buffer, size);
423 } else
424 gdb_put_packet(connection, "QC0", 3);
425 return ERROR_OK;
426 } else if (packet[0] == 'T') { /* Is thread alive? */
427 threadid_t threadid;
428 int found = -1;
429 sscanf(packet, "T%" SCNx64, &threadid);
430 if ((target->rtos) && (target->rtos->thread_details)) {
431 int thread_num;
432 for (thread_num = 0; thread_num < target->rtos->thread_count; thread_num++) {
433 if (target->rtos->thread_details[thread_num].threadid == threadid) {
434 if (target->rtos->thread_details[thread_num].exists)
435 found = thread_num;
436 }
437 }
438 }
439 if (found != -1)
440 gdb_put_packet(connection, "OK", 2); /* thread alive */
441 else
442 gdb_put_packet(connection, "E01", 3); /* thread not found */
443 return ERROR_OK;
444 } else if (packet[0] == 'H') { /* Set current thread ( 'c' for step and continue, 'g' for
445 * all other operations ) */
446 if ((packet[1] == 'g') && (target->rtos)) {
447 threadid_t threadid;
448 sscanf(packet, "Hg%16" SCNx64, &threadid);
449 LOG_DEBUG("RTOS: GDB requested to set current thread to 0x%" PRIx64, threadid);
450 /* threadid of 0 indicates target should choose */
451 if (threadid == 0)
452 target->rtos->current_threadid = target->rtos->current_thread;
453 else
454 target->rtos->current_threadid = threadid;
455 }
456 gdb_put_packet(connection, "OK", 2);
457 return ERROR_OK;
458 }
459
460 return GDB_THREAD_PACKET_NOT_CONSUMED;
461 }
462
463 static int rtos_put_gdb_reg_list(struct connection *connection,
464 struct rtos_reg *reg_list, int num_regs)
465 {
466 size_t num_bytes = 1; /* NUL */
467 for (int i = 0; i < num_regs; ++i)
468 num_bytes += DIV_ROUND_UP(reg_list[i].size, 8) * 2;
469
470 char *hex = malloc(num_bytes);
471 char *hex_p = hex;
472
473 for (int i = 0; i < num_regs; ++i) {
474 size_t count = DIV_ROUND_UP(reg_list[i].size, 8);
475 size_t n = hexify(hex_p, reg_list[i].value, count, num_bytes);
476 hex_p += n;
477 num_bytes -= n;
478 }
479
480 gdb_put_packet(connection, hex, strlen(hex));
481 free(hex);
482
483 return ERROR_OK;
484 }
485
486 /** Look through all registers to find this register. */
487 int rtos_get_gdb_reg(struct connection *connection, int reg_num)
488 {
489 struct target *target = get_target_from_connection(connection);
490 int64_t current_threadid = target->rtos->current_threadid;
491 if ((target->rtos) && (current_threadid != -1) &&
492 (current_threadid != 0) &&
493 ((current_threadid != target->rtos->current_thread) ||
494 (target->smp))) { /* in smp several current thread are possible */
495 struct rtos_reg *reg_list;
496 int num_regs;
497
498 LOG_DEBUG("getting register %d for thread 0x%" PRIx64
499 ", target->rtos->current_thread=0x%" PRIx64,
500 reg_num,
501 current_threadid,
502 target->rtos->current_thread);
503
504 int retval;
505 if (target->rtos->type->get_thread_reg) {
506 reg_list = calloc(1, sizeof(*reg_list));
507 num_regs = 1;
508 retval = target->rtos->type->get_thread_reg(target->rtos,
509 current_threadid, reg_num, &reg_list[0]);
510 if (retval != ERROR_OK) {
511 LOG_ERROR("RTOS: failed to get register %d", reg_num);
512 return retval;
513 }
514 } else {
515 retval = target->rtos->type->get_thread_reg_list(target->rtos,
516 current_threadid,
517 &reg_list,
518 &num_regs);
519 if (retval != ERROR_OK) {
520 LOG_ERROR("RTOS: failed to get register list");
521 return retval;
522 }
523 }
524
525 for (int i = 0; i < num_regs; ++i) {
526 if (reg_list[i].number == (uint32_t)reg_num) {
527 rtos_put_gdb_reg_list(connection, reg_list + i, 1);
528 free(reg_list);
529 return ERROR_OK;
530 }
531 }
532
533 free(reg_list);
534 }
535 return ERROR_FAIL;
536 }
537
538 /** Return a list of general registers. */
539 int rtos_get_gdb_reg_list(struct connection *connection)
540 {
541 struct target *target = get_target_from_connection(connection);
542 int64_t current_threadid = target->rtos->current_threadid;
543 if ((target->rtos) && (current_threadid != -1) &&
544 (current_threadid != 0) &&
545 ((current_threadid != target->rtos->current_thread) ||
546 (target->smp))) { /* in smp several current thread are possible */
547 struct rtos_reg *reg_list;
548 int num_regs;
549
550 LOG_DEBUG("RTOS: getting register list for thread 0x%" PRIx64
551 ", target->rtos->current_thread=0x%" PRIx64 "\r\n",
552 current_threadid,
553 target->rtos->current_thread);
554
555 int retval = target->rtos->type->get_thread_reg_list(target->rtos,
556 current_threadid,
557 &reg_list,
558 &num_regs);
559 if (retval != ERROR_OK) {
560 LOG_ERROR("RTOS: failed to get register list");
561 return retval;
562 }
563
564 rtos_put_gdb_reg_list(connection, reg_list, num_regs);
565 free(reg_list);
566
567 return ERROR_OK;
568 }
569 return ERROR_FAIL;
570 }
571
572 int rtos_set_reg(struct connection *connection, int reg_num,
573 uint8_t *reg_value)
574 {
575 struct target *target = get_target_from_connection(connection);
576 int64_t current_threadid = target->rtos->current_threadid;
577 if ((target->rtos) &&
578 (target->rtos->type->set_reg) &&
579 (current_threadid != -1) &&
580 (current_threadid != 0)) {
581 return target->rtos->type->set_reg(target->rtos, reg_num, reg_value);
582 }
583 return ERROR_FAIL;
584 }
585
586 int rtos_generic_stack_read(struct target *target,
587 const struct rtos_register_stacking *stacking,
588 int64_t stack_ptr,
589 struct rtos_reg **reg_list,
590 int *num_regs)
591 {
592 int retval;
593
594 if (stack_ptr == 0) {
595 LOG_ERROR("Error: null stack pointer in thread");
596 return -5;
597 }
598 /* Read the stack */
599 uint8_t *stack_data = malloc(stacking->stack_registers_size);
600 uint32_t address = stack_ptr;
601
602 if (stacking->stack_growth_direction == 1)
603 address -= stacking->stack_registers_size;
604 retval = target_read_buffer(target, address, stacking->stack_registers_size, stack_data);
605 if (retval != ERROR_OK) {
606 free(stack_data);
607 LOG_ERROR("Error reading stack frame from thread");
608 return retval;
609 }
610 LOG_DEBUG("RTOS: Read stack frame at 0x%" PRIx32, address);
611
612 #if 0
613 LOG_OUTPUT("Stack Data :");
614 for (i = 0; i < stacking->stack_registers_size; i++)
615 LOG_OUTPUT("%02X", stack_data[i]);
616 LOG_OUTPUT("\r\n");
617 #endif
618
619 target_addr_t new_stack_ptr;
620 if (stacking->calculate_process_stack) {
621 new_stack_ptr = stacking->calculate_process_stack(target,
622 stack_data, stacking, stack_ptr);
623 } else {
624 new_stack_ptr = stack_ptr - stacking->stack_growth_direction *
625 stacking->stack_registers_size;
626 }
627
628 *reg_list = calloc(stacking->num_output_registers, sizeof(struct rtos_reg));
629 *num_regs = stacking->num_output_registers;
630
631 for (int i = 0; i < stacking->num_output_registers; ++i) {
632 (*reg_list)[i].number = stacking->register_offsets[i].number;
633 (*reg_list)[i].size = stacking->register_offsets[i].width_bits;
634
635 int offset = stacking->register_offsets[i].offset;
636 if (offset == -2)
637 buf_cpy(&new_stack_ptr, (*reg_list)[i].value, (*reg_list)[i].size);
638 else if (offset != -1)
639 buf_cpy(stack_data + offset, (*reg_list)[i].value, (*reg_list)[i].size);
640 }
641
642 free(stack_data);
643 /* LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list); */
644 return ERROR_OK;
645 }
646
647 static int rtos_try_next(struct target *target)
648 {
649 struct rtos *os = target->rtos;
650 struct rtos_type **type = rtos_types;
651
652 if (!os)
653 return 0;
654
655 while (*type && os->type != *type)
656 type++;
657
658 if (!*type || !*(++type))
659 return 0;
660
661 os->type = *type;
662
663 free(os->symbols);
664 os->symbols = NULL;
665
666 return 1;
667 }
668
669 int rtos_update_threads(struct target *target)
670 {
671 if ((target->rtos) && (target->rtos->type))
672 target->rtos->type->update_threads(target->rtos);
673 return ERROR_OK;
674 }
675
676 void rtos_free_threadlist(struct rtos *rtos)
677 {
678 if (rtos->thread_details) {
679 int j;
680
681 for (j = 0; j < rtos->thread_count; j++) {
682 struct thread_detail *current_thread = &rtos->thread_details[j];
683 free(current_thread->thread_name_str);
684 free(current_thread->extra_info_str);
685 }
686 free(rtos->thread_details);
687 rtos->thread_details = NULL;
688 rtos->thread_count = 0;
689 rtos->current_threadid = -1;
690 rtos->current_thread = 0;
691 }
692 }
693
694 int rtos_read_buffer(struct target *target, target_addr_t address,
695 uint32_t size, uint8_t *buffer)
696 {
697 if (target->rtos->type->read_buffer)
698 return target->rtos->type->read_buffer(target->rtos, address, size, buffer);
699 return ERROR_NOT_IMPLEMENTED;
700 }
701
702 int rtos_write_buffer(struct target *target, target_addr_t address,
703 uint32_t size, const uint8_t *buffer)
704 {
705 if (target->rtos->type->write_buffer)
706 return target->rtos->type->write_buffer(target->rtos, address, size, buffer);
707 return ERROR_NOT_IMPLEMENTED;
708 }
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