git.sur5r.net Git - openocd/blob - src/rtos/FreeRTOS.c

   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 <helper/time_support.h>
  24 #include <jtag/jtag.h>
  25 #include "target/target.h"
  26 #include "target/target_type.h"
  27 #include "rtos.h"
  28 #include "helper/log.h"
  29 #include "helper/types.h"
  30 #include "rtos_standard_stackings.h"
  31 #include "target/armv7m.h"
  32 #include "target/cortex_m.h"
  33
  34
  35
  36 #define FREERTOS_MAX_PRIORITIES 63
  37
  38 #define FreeRTOS_STRUCT(int_type, ptr_type, list_prev_offset)
  39
  40 struct FreeRTOS_params {
  41         const char *target_name;
  42         const unsigned char thread_count_width;
  43         const unsigned char pointer_width;
  44         const unsigned char list_next_offset;
  45         const unsigned char list_width;
  46         const unsigned char list_elem_next_offset;
  47         const unsigned char list_elem_content_offset;
  48         const unsigned char thread_stack_offset;
  49         const unsigned char thread_name_offset;
  50         const struct rtos_register_stacking *stacking_info_cm3;
  51         const struct rtos_register_stacking *stacking_info_cm4f;
  52         const struct rtos_register_stacking *stacking_info_cm4f_fpu;
  53 };
  54
  55 static const struct FreeRTOS_params FreeRTOS_params_list[] = {
  56         {
  57         "cortex_m",                     /* target_name */
  58         4,                                              /* thread_count_width; */
  59         4,                                              /* pointer_width; */
  60         16,                                             /* list_next_offset; */
  61         20,                                             /* list_width; */
  62         8,                                              /* list_elem_next_offset; */
  63         12,                                             /* list_elem_content_offset */
  64         0,                                              /* thread_stack_offset; */
  65         52,                                             /* thread_name_offset; */
  66         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  67         &rtos_standard_Cortex_M4F_stacking,
  68         &rtos_standard_Cortex_M4F_FPU_stacking,
  69         },
  70         {
  71         "hla_target",                   /* target_name */
  72         4,                                              /* thread_count_width; */
  73         4,                                              /* pointer_width; */
  74         16,                                             /* list_next_offset; */
  75         20,                                             /* list_width; */
  76         8,                                              /* list_elem_next_offset; */
  77         12,                                             /* list_elem_content_offset */
  78         0,                                              /* thread_stack_offset; */
  79         52,                                             /* thread_name_offset; */
  80         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  81         &rtos_standard_Cortex_M4F_stacking,
  82         &rtos_standard_Cortex_M4F_FPU_stacking,
  83         },
  84         {
  85         "nds32_v3",                     /* target_name */
  86         4,                                              /* thread_count_width; */
  87         4,                                              /* pointer_width; */
  88         16,                                             /* list_next_offset; */
  89         20,                                             /* list_width; */
  90         8,                                              /* list_elem_next_offset; */
  91         12,                                             /* list_elem_content_offset */
  92         0,                                              /* thread_stack_offset; */
  93         52,                                             /* thread_name_offset; */
  94         &rtos_standard_NDS32_N1068_stacking,    /* stacking_info */
  95         &rtos_standard_Cortex_M4F_stacking,
  96         &rtos_standard_Cortex_M4F_FPU_stacking,
  97         },
  98 };
  99
 100 #define FREERTOS_NUM_PARAMS ((int)(sizeof(FreeRTOS_params_list)/sizeof(struct FreeRTOS_params)))
 101
 102 static bool FreeRTOS_detect_rtos(struct target *target);
 103 static int FreeRTOS_create(struct target *target);
 104 static int FreeRTOS_update_threads(struct rtos *rtos);
 105 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 106                 struct rtos_reg **reg_list, int *num_regs);
 107 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
 108
 109 struct rtos_type FreeRTOS_rtos = {
 110         .name = "FreeRTOS",
 111
 112         .detect_rtos = FreeRTOS_detect_rtos,
 113         .create = FreeRTOS_create,
 114         .update_threads = FreeRTOS_update_threads,
 115         .get_thread_reg_list = FreeRTOS_get_thread_reg_list,
 116         .get_symbol_list_to_lookup = FreeRTOS_get_symbol_list_to_lookup,
 117 };
 118
 119 enum FreeRTOS_symbol_values {
 120         FreeRTOS_VAL_pxCurrentTCB = 0,
 121         FreeRTOS_VAL_pxReadyTasksLists = 1,
 122         FreeRTOS_VAL_xDelayedTaskList1 = 2,
 123         FreeRTOS_VAL_xDelayedTaskList2 = 3,
 124         FreeRTOS_VAL_pxDelayedTaskList = 4,
 125         FreeRTOS_VAL_pxOverflowDelayedTaskList = 5,
 126         FreeRTOS_VAL_xPendingReadyList = 6,
 127         FreeRTOS_VAL_xTasksWaitingTermination = 7,
 128         FreeRTOS_VAL_xSuspendedTaskList = 8,
 129         FreeRTOS_VAL_uxCurrentNumberOfTasks = 9,
 130         FreeRTOS_VAL_uxTopUsedPriority = 10,
 131 };
 132
 133 struct symbols {
 134         const char *name;
 135         bool optional;
 136 };
 137
 138 static const struct symbols FreeRTOS_symbol_list[] = {
 139         { "pxCurrentTCB", false },
 140         { "pxReadyTasksLists", false },
 141         { "xDelayedTaskList1", false },
 142         { "xDelayedTaskList2", false },
 143         { "pxDelayedTaskList", false },
 144         { "pxOverflowDelayedTaskList", false },
 145         { "xPendingReadyList", false },
 146         { "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
 147         { "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
 148         { "uxCurrentNumberOfTasks", false },
 149         { "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
 150         { NULL, false }
 151 };
 152
 153 /* TODO: */
 154 /* this is not safe for little endian yet */
 155 /* may be problems reading if sizes are not 32 bit long integers. */
 156 /* test mallocs for failure */
 157
 158 static int FreeRTOS_update_threads(struct rtos *rtos)
 159 {
 160         int i = 0;
 161         int retval;
 162         int tasks_found = 0;
 163         const struct FreeRTOS_params *param;
 164
 165         if (rtos->rtos_specific_params == NULL)
 166                 return -1;
 167
 168         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 169
 170         if (rtos->symbols == NULL) {
 171                 LOG_ERROR("No symbols for FreeRTOS");
 172                 return -3;
 173         }
 174
 175         if (rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address == 0) {
 176                 LOG_ERROR("Don't have the number of threads in FreeRTOS");
 177                 return -2;
 178         }
 179
 180         int thread_list_size = 0;
 181         retval = target_read_buffer(rtos->target,
 182                         rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 183                         param->thread_count_width,
 184                         (uint8_t *)&thread_list_size);
 185         LOG_DEBUG("FreeRTOS: Read uxCurrentNumberOfTasks at 0x%" PRIx64 ", value %d\r\n",
 186                                                                                 rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 187                                                                                 thread_list_size);
 188
 189         if (retval != ERROR_OK) {
 190                 LOG_ERROR("Could not read FreeRTOS thread count from target");
 191                 return retval;
 192         }
 193
 194         /* wipe out previous thread details if any */
 195         rtos_free_threadlist(rtos);
 196
 197         /* read the current thread */
 198         retval = target_read_buffer(rtos->target,
 199                         rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 200                         param->pointer_width,
 201                         (uint8_t *)&rtos->current_thread);
 202         if (retval != ERROR_OK) {
 203                 LOG_ERROR("Error reading current thread in FreeRTOS thread list");
 204                 return retval;
 205         }
 206         LOG_DEBUG("FreeRTOS: Read pxCurrentTCB at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 207                                                                                 rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 208                                                                                 rtos->current_thread);
 209
 210         if ((thread_list_size  == 0) || (rtos->current_thread == 0)) {
 211                 /* Either : No RTOS threads - there is always at least the current execution though */
 212                 /* OR     : No current thread - all threads suspended - show the current execution
 213                  * of idling */
 214                 char tmp_str[] = "Current Execution";
 215                 thread_list_size++;
 216                 tasks_found++;
 217                 rtos->thread_details = malloc(
 218                                 sizeof(struct thread_detail) * thread_list_size);
 219                 if (!rtos->thread_details) {
 220                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 221                         return ERROR_FAIL;
 222                 }
 223                 rtos->thread_details->threadid = 1;
 224                 rtos->thread_details->exists = true;
 225                 rtos->thread_details->extra_info_str = NULL;
 226                 rtos->thread_details->thread_name_str = malloc(sizeof(tmp_str));
 227                 strcpy(rtos->thread_details->thread_name_str, tmp_str);
 228
 229                 if (thread_list_size == 1) {
 230                         rtos->thread_count = 1;
 231                         return ERROR_OK;
 232                 }
 233         } else {
 234                 /* create space for new thread details */
 235                 rtos->thread_details = malloc(
 236                                 sizeof(struct thread_detail) * thread_list_size);
 237                 if (!rtos->thread_details) {
 238                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 239                         return ERROR_FAIL;
 240                 }
 241         }
 242
 243         /* Find out how many lists are needed to be read from pxReadyTasksLists, */
 244         if (rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address == 0) {
 245                 LOG_ERROR("FreeRTOS: uxTopUsedPriority is not defined, consult the OpenOCD manual for a work-around");
 246                 return ERROR_FAIL;
 247         }
 248         int64_t max_used_priority = 0;
 249         retval = target_read_buffer(rtos->target,
 250                         rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 251                         param->pointer_width,
 252                         (uint8_t *)&max_used_priority);
 253         if (retval != ERROR_OK)
 254                 return retval;
 255         LOG_DEBUG("FreeRTOS: Read uxTopUsedPriority at 0x%" PRIx64 ", value %" PRId64 "\r\n",
 256                                                                                 rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 257                                                                                 max_used_priority);
 258         if (max_used_priority > FREERTOS_MAX_PRIORITIES) {
 259                 LOG_ERROR("FreeRTOS maximum used priority is unreasonably big, not proceeding: %" PRId64 "",
 260                         max_used_priority);
 261                 return ERROR_FAIL;
 262         }
 263
 264         symbol_address_t *list_of_lists =
 265                 malloc(sizeof(symbol_address_t) *
 266                         (max_used_priority+1 + 5));
 267         if (!list_of_lists) {
 268                 LOG_ERROR("Error allocating memory for %" PRId64 " priorities", max_used_priority);
 269                 return ERROR_FAIL;
 270         }
 271
 272         int num_lists;
 273         for (num_lists = 0; num_lists <= max_used_priority; num_lists++)
 274                 list_of_lists[num_lists] = rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address +
 275                         num_lists * param->list_width;
 276
 277         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList1].address;
 278         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList2].address;
 279         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xPendingReadyList].address;
 280         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xSuspendedTaskList].address;
 281         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xTasksWaitingTermination].address;
 282
 283         for (i = 0; i < num_lists; i++) {
 284                 if (list_of_lists[i] == 0)
 285                         continue;
 286
 287                 /* Read the number of threads in this list */
 288                 int64_t list_thread_count = 0;
 289                 retval = target_read_buffer(rtos->target,
 290                                 list_of_lists[i],
 291                                 param->thread_count_width,
 292                                 (uint8_t *)&list_thread_count);
 293                 if (retval != ERROR_OK) {
 294                         LOG_ERROR("Error reading number of threads in FreeRTOS thread list");
 295                         free(list_of_lists);
 296                         return retval;
 297                 }
 298                 LOG_DEBUG("FreeRTOS: Read thread count for list %d at 0x%" PRIx64 ", value %" PRId64 "\r\n",
 299                                                                                 i, list_of_lists[i], list_thread_count);
 300
 301                 if (list_thread_count == 0)
 302                         continue;
 303
 304                 /* Read the location of first list item */
 305                 uint64_t prev_list_elem_ptr = -1;
 306                 uint64_t list_elem_ptr = 0;
 307                 retval = target_read_buffer(rtos->target,
 308                                 list_of_lists[i] + param->list_next_offset,
 309                                 param->pointer_width,
 310                                 (uint8_t *)&list_elem_ptr);
 311                 if (retval != ERROR_OK) {
 312                         LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 313                         free(list_of_lists);
 314                         return retval;
 315                 }
 316                 LOG_DEBUG("FreeRTOS: Read first item for list %d at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 317                                                                                 i, list_of_lists[i] + param->list_next_offset, list_elem_ptr);
 318
 319                 while ((list_thread_count > 0) && (list_elem_ptr != 0) &&
 320                                 (list_elem_ptr != prev_list_elem_ptr) &&
 321                                 (tasks_found < thread_list_size)) {
 322                         /* Get the location of the thread structure. */
 323                         rtos->thread_details[tasks_found].threadid = 0;
 324                         retval = target_read_buffer(rtos->target,
 325                                         list_elem_ptr + param->list_elem_content_offset,
 326                                         param->pointer_width,
 327                                         (uint8_t *)&(rtos->thread_details[tasks_found].threadid));
 328                         if (retval != ERROR_OK) {
 329                                 LOG_ERROR("Error reading thread list item object in FreeRTOS thread list");
 330                                 free(list_of_lists);
 331                                 return retval;
 332                         }
 333                         LOG_DEBUG("FreeRTOS: Read Thread ID at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 334                                                                                 list_elem_ptr + param->list_elem_content_offset,
 335                                                                                 rtos->thread_details[tasks_found].threadid);
 336
 337                         /* get thread name */
 338
 339                         #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 340                         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 341
 342                         /* Read the thread name */
 343                         retval = target_read_buffer(rtos->target,
 344                                         rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 345                                         FREERTOS_THREAD_NAME_STR_SIZE,
 346                                         (uint8_t *)&tmp_str);
 347                         if (retval != ERROR_OK) {
 348                                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 349                                 free(list_of_lists);
 350                                 return retval;
 351                         }
 352                         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 353                         LOG_DEBUG("FreeRTOS: Read Thread Name at 0x%" PRIx64 ", value \"%s\"\r\n",
 354                                                                                 rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 355                                                                                 tmp_str);
 356
 357                         if (tmp_str[0] == '\x00')
 358                                 strcpy(tmp_str, "No Name");
 359
 360                         rtos->thread_details[tasks_found].thread_name_str =
 361                                 malloc(strlen(tmp_str)+1);
 362                         strcpy(rtos->thread_details[tasks_found].thread_name_str, tmp_str);
 363                         rtos->thread_details[tasks_found].exists = true;
 364
 365                         if (rtos->thread_details[tasks_found].threadid == rtos->current_thread) {
 366                                 char running_str[] = "State: Running";
 367                                 rtos->thread_details[tasks_found].extra_info_str = malloc(
 368                                                 sizeof(running_str));
 369                                 strcpy(rtos->thread_details[tasks_found].extra_info_str,
 370                                         running_str);
 371                         } else
 372                                 rtos->thread_details[tasks_found].extra_info_str = NULL;
 373
 374                         tasks_found++;
 375                         list_thread_count--;
 376
 377                         prev_list_elem_ptr = list_elem_ptr;
 378                         list_elem_ptr = 0;
 379                         retval = target_read_buffer(rtos->target,
 380                                         prev_list_elem_ptr + param->list_elem_next_offset,
 381                                         param->pointer_width,
 382                                         (uint8_t *)&list_elem_ptr);
 383                         if (retval != ERROR_OK) {
 384                                 LOG_ERROR("Error reading next thread item location in FreeRTOS thread list");
 385                                 free(list_of_lists);
 386                                 return retval;
 387                         }
 388                         LOG_DEBUG("FreeRTOS: Read next thread location at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 389                                                                                 prev_list_elem_ptr + param->list_elem_next_offset,
 390                                                                                 list_elem_ptr);
 391                 }
 392         }
 393
 394         free(list_of_lists);
 395         rtos->thread_count = tasks_found;
 396         return 0;
 397 }
 398
 399 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 400                 struct rtos_reg **reg_list, int *num_regs)
 401 {
 402         int retval;
 403         const struct FreeRTOS_params *param;
 404         int64_t stack_ptr = 0;
 405
 406         if (rtos == NULL)
 407                 return -1;
 408
 409         if (thread_id == 0)
 410                 return -2;
 411
 412         if (rtos->rtos_specific_params == NULL)
 413                 return -1;
 414
 415         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 416
 417         /* Read the stack pointer */
 418         retval = target_read_buffer(rtos->target,
 419                         thread_id + param->thread_stack_offset,
 420                         param->pointer_width,
 421                         (uint8_t *)&stack_ptr);
 422         if (retval != ERROR_OK) {
 423                 LOG_ERROR("Error reading stack frame from FreeRTOS thread");
 424                 return retval;
 425         }
 426         LOG_DEBUG("FreeRTOS: Read stack pointer at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 427                                                                                 thread_id + param->thread_stack_offset,
 428                                                                                 stack_ptr);
 429
 430         /* Check for armv7m with *enabled* FPU, i.e. a Cortex-M4F */
 431         int cm4_fpu_enabled = 0;
 432         struct armv7m_common *armv7m_target = target_to_armv7m(rtos->target);
 433         if (is_armv7m(armv7m_target)) {
 434                 if (armv7m_target->fp_feature == FPv4_SP) {
 435                         /* Found ARM v7m target which includes a FPU */
 436                         uint32_t cpacr;
 437
 438                         retval = target_read_u32(rtos->target, FPU_CPACR, &cpacr);
 439                         if (retval != ERROR_OK) {
 440                                 LOG_ERROR("Could not read CPACR register to check FPU state");
 441                                 return -1;
 442                         }
 443
 444                         /* Check if CP10 and CP11 are set to full access. */
 445                         if (cpacr & 0x00F00000) {
 446                                 /* Found target with enabled FPU */
 447                                 cm4_fpu_enabled = 1;
 448                         }
 449                 }
 450         }
 451
 452         if (cm4_fpu_enabled == 1) {
 453                 /* Read the LR to decide between stacking with or without FPU */
 454                 uint32_t LR_svc = 0;
 455                 retval = target_read_buffer(rtos->target,
 456                                 stack_ptr + 0x20,
 457                                 param->pointer_width,
 458                                 (uint8_t *)&LR_svc);
 459                 if (retval != ERROR_OK) {
 460                         LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
 461                         return retval;
 462                 }
 463                 if ((LR_svc & 0x10) == 0)
 464                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f_fpu, stack_ptr, reg_list, num_regs);
 465                 else
 466                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f, stack_ptr, reg_list, num_regs);
 467         } else
 468                 return rtos_generic_stack_read(rtos->target, param->stacking_info_cm3, stack_ptr, reg_list, num_regs);
 469 }
 470
 471 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 472 {
 473         unsigned int i;
 474         *symbol_list = calloc(
 475                         ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(symbol_table_elem_t));
 476
 477         for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++) {
 478                 (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i].name;
 479                 (*symbol_list)[i].optional = FreeRTOS_symbol_list[i].optional;
 480         }
 481
 482         return 0;
 483 }
 484
 485 #if 0
 486
 487 static int FreeRTOS_set_current_thread(struct rtos *rtos, threadid_t thread_id)
 488 {
 489         return 0;
 490 }
 491
 492 static int FreeRTOS_get_thread_ascii_info(struct rtos *rtos, threadid_t thread_id, char **info)
 493 {
 494         int retval;
 495         const struct FreeRTOS_params *param;
 496
 497         if (rtos == NULL)
 498                 return -1;
 499
 500         if (thread_id == 0)
 501                 return -2;
 502
 503         if (rtos->rtos_specific_params == NULL)
 504                 return -3;
 505
 506         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 507
 508 #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 509         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 510
 511         /* Read the thread name */
 512         retval = target_read_buffer(rtos->target,
 513                         thread_id + param->thread_name_offset,
 514                         FREERTOS_THREAD_NAME_STR_SIZE,
 515                         (uint8_t *)&tmp_str);
 516         if (retval != ERROR_OK) {
 517                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 518                 return retval;
 519         }
 520         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 521
 522         if (tmp_str[0] == '\x00')
 523                 strcpy(tmp_str, "No Name");
 524
 525         *info = malloc(strlen(tmp_str)+1);
 526         strcpy(*info, tmp_str);
 527         return 0;
 528 }
 529
 530 #endif
 531
 532 static bool FreeRTOS_detect_rtos(struct target *target)
 533 {
 534         if ((target->rtos->symbols != NULL) &&
 535                         (target->rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address != 0)) {
 536                 /* looks like FreeRTOS */
 537                 return true;
 538         }
 539         return false;
 540 }
 541
 542 static int FreeRTOS_create(struct target *target)
 543 {
 544         int i = 0;
 545         while ((i < FREERTOS_NUM_PARAMS) &&
 546                         (0 != strcmp(FreeRTOS_params_list[i].target_name, target->type->name))) {
 547                 i++;
 548         }
 549         if (i >= FREERTOS_NUM_PARAMS) {
 550                 LOG_ERROR("Could not find target in FreeRTOS compatibility list");
 551                 return -1;
 552         }
 553
 554         target->rtos->rtos_specific_params = (void *) &FreeRTOS_params_list[i];
 555         return 0;
 556 }