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   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 /* FIXME: none of the _width parameters are actually observed properly!
  41  * you WILL need to edit more if you actually attempt to target a 8/16/64
  42  * bit target!
  43  */
  44
  45 struct FreeRTOS_params {
  46         const char *target_name;
  47         const unsigned char thread_count_width;
  48         const unsigned char pointer_width;
  49         const unsigned char list_next_offset;
  50         const unsigned char list_width;
  51         const unsigned char list_elem_next_offset;
  52         const unsigned char list_elem_content_offset;
  53         const unsigned char thread_stack_offset;
  54         const unsigned char thread_name_offset;
  55         const struct rtos_register_stacking *stacking_info_cm3;
  56         const struct rtos_register_stacking *stacking_info_cm4f;
  57         const struct rtos_register_stacking *stacking_info_cm4f_fpu;
  58 };
  59
  60 static const struct FreeRTOS_params FreeRTOS_params_list[] = {
  61         {
  62         "cortex_m",                     /* target_name */
  63         4,                                              /* thread_count_width; */
  64         4,                                              /* pointer_width; */
  65         16,                                             /* list_next_offset; */
  66         20,                                             /* list_width; */
  67         8,                                              /* list_elem_next_offset; */
  68         12,                                             /* list_elem_content_offset */
  69         0,                                              /* thread_stack_offset; */
  70         52,                                             /* thread_name_offset; */
  71         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  72         &rtos_standard_Cortex_M4F_stacking,
  73         &rtos_standard_Cortex_M4F_FPU_stacking,
  74         },
  75         {
  76         "hla_target",                   /* target_name */
  77         4,                                              /* thread_count_width; */
  78         4,                                              /* pointer_width; */
  79         16,                                             /* list_next_offset; */
  80         20,                                             /* list_width; */
  81         8,                                              /* list_elem_next_offset; */
  82         12,                                             /* list_elem_content_offset */
  83         0,                                              /* thread_stack_offset; */
  84         52,                                             /* thread_name_offset; */
  85         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  86         &rtos_standard_Cortex_M4F_stacking,
  87         &rtos_standard_Cortex_M4F_FPU_stacking,
  88         },
  89         {
  90         "nds32_v3",                     /* target_name */
  91         4,                                              /* thread_count_width; */
  92         4,                                              /* pointer_width; */
  93         16,                                             /* list_next_offset; */
  94         20,                                             /* list_width; */
  95         8,                                              /* list_elem_next_offset; */
  96         12,                                             /* list_elem_content_offset */
  97         0,                                              /* thread_stack_offset; */
  98         52,                                             /* thread_name_offset; */
  99         &rtos_standard_NDS32_N1068_stacking,    /* stacking_info */
 100         &rtos_standard_Cortex_M4F_stacking,
 101         &rtos_standard_Cortex_M4F_FPU_stacking,
 102         },
 103 };
 104
 105 static bool FreeRTOS_detect_rtos(struct target *target);
 106 static int FreeRTOS_create(struct target *target);
 107 static int FreeRTOS_update_threads(struct rtos *rtos);
 108 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 109                 struct rtos_reg **reg_list, int *num_regs);
 110 static int FreeRTOS_get_symbol_list_to_lookup(struct symbol_table_elem *symbol_list[]);
 111
 112 struct rtos_type FreeRTOS_rtos = {
 113         .name = "FreeRTOS",
 114
 115         .detect_rtos = FreeRTOS_detect_rtos,
 116         .create = FreeRTOS_create,
 117         .update_threads = FreeRTOS_update_threads,
 118         .get_thread_reg_list = FreeRTOS_get_thread_reg_list,
 119         .get_symbol_list_to_lookup = FreeRTOS_get_symbol_list_to_lookup,
 120 };
 121
 122 enum FreeRTOS_symbol_values {
 123         FreeRTOS_VAL_pxCurrentTCB = 0,
 124         FreeRTOS_VAL_pxReadyTasksLists = 1,
 125         FreeRTOS_VAL_xDelayedTaskList1 = 2,
 126         FreeRTOS_VAL_xDelayedTaskList2 = 3,
 127         FreeRTOS_VAL_pxDelayedTaskList = 4,
 128         FreeRTOS_VAL_pxOverflowDelayedTaskList = 5,
 129         FreeRTOS_VAL_xPendingReadyList = 6,
 130         FreeRTOS_VAL_xTasksWaitingTermination = 7,
 131         FreeRTOS_VAL_xSuspendedTaskList = 8,
 132         FreeRTOS_VAL_uxCurrentNumberOfTasks = 9,
 133         FreeRTOS_VAL_uxTopUsedPriority = 10,
 134 };
 135
 136 struct symbols {
 137         const char *name;
 138         bool optional;
 139 };
 140
 141 static const struct symbols FreeRTOS_symbol_list[] = {
 142         { "pxCurrentTCB", false },
 143         { "pxReadyTasksLists", false },
 144         { "xDelayedTaskList1", false },
 145         { "xDelayedTaskList2", false },
 146         { "pxDelayedTaskList", false },
 147         { "pxOverflowDelayedTaskList", false },
 148         { "xPendingReadyList", false },
 149         { "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
 150         { "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
 151         { "uxCurrentNumberOfTasks", false },
 152         { "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
 153         { NULL, false }
 154 };
 155
 156 /* TODO: */
 157 /* this is not safe for little endian yet */
 158 /* may be problems reading if sizes are not 32 bit long integers. */
 159 /* test mallocs for failure */
 160
 161 static int FreeRTOS_update_threads(struct rtos *rtos)
 162 {
 163         int retval;
 164         unsigned int tasks_found = 0;
 165         const struct FreeRTOS_params *param;
 166
 167         if (rtos->rtos_specific_params == NULL)
 168                 return -1;
 169
 170         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 171
 172         if (rtos->symbols == NULL) {
 173                 LOG_ERROR("No symbols for FreeRTOS");
 174                 return -3;
 175         }
 176
 177         if (rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address == 0) {
 178                 LOG_ERROR("Don't have the number of threads in FreeRTOS");
 179                 return -2;
 180         }
 181
 182         uint32_t thread_list_size = 0;
 183         retval = target_read_u32(rtos->target,
 184                         rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 185                         &thread_list_size);
 186         LOG_DEBUG("FreeRTOS: Read uxCurrentNumberOfTasks at 0x%" PRIx64 ", value %" PRIu32,
 187                                                                                 rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 188                                                                                 thread_list_size);
 189
 190         if (retval != ERROR_OK) {
 191                 LOG_ERROR("Could not read FreeRTOS thread count from target");
 192                 return retval;
 193         }
 194
 195         /* wipe out previous thread details if any */
 196         rtos_free_threadlist(rtos);
 197
 198         /* read the current thread */
 199         uint32_t pointer_casts_are_bad;
 200         retval = target_read_u32(rtos->target,
 201                         rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 202                         &pointer_casts_are_bad);
 203         if (retval != ERROR_OK) {
 204                 LOG_ERROR("Error reading current thread in FreeRTOS thread list");
 205                 return retval;
 206         }
 207         rtos->current_thread = pointer_casts_are_bad;
 208         LOG_DEBUG("FreeRTOS: Read pxCurrentTCB at 0x%" PRIx64 ", value 0x%" PRIx64,
 209                                                                                 rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 210                                                                                 rtos->current_thread);
 211
 212         if ((thread_list_size  == 0) || (rtos->current_thread == 0)) {
 213                 /* Either : No RTOS threads - there is always at least the current execution though */
 214                 /* OR     : No current thread - all threads suspended - show the current execution
 215                  * of idling */
 216                 char tmp_str[] = "Current Execution";
 217                 thread_list_size++;
 218                 tasks_found++;
 219                 rtos->thread_details = malloc(
 220                                 sizeof(struct thread_detail) * thread_list_size);
 221                 if (!rtos->thread_details) {
 222                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 223                         return ERROR_FAIL;
 224                 }
 225                 rtos->thread_details->threadid = 1;
 226                 rtos->thread_details->exists = true;
 227                 rtos->thread_details->extra_info_str = NULL;
 228                 rtos->thread_details->thread_name_str = malloc(sizeof(tmp_str));
 229                 strcpy(rtos->thread_details->thread_name_str, tmp_str);
 230
 231                 if (thread_list_size == 1) {
 232                         rtos->thread_count = 1;
 233                         return ERROR_OK;
 234                 }
 235         } else {
 236                 /* create space for new thread details */
 237                 rtos->thread_details = malloc(
 238                                 sizeof(struct thread_detail) * thread_list_size);
 239                 if (!rtos->thread_details) {
 240                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 241                         return ERROR_FAIL;
 242                 }
 243         }
 244
 245         /* Find out how many lists are needed to be read from pxReadyTasksLists, */
 246         if (rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address == 0) {
 247                 LOG_ERROR("FreeRTOS: uxTopUsedPriority is not defined, consult the OpenOCD manual for a work-around");
 248                 return ERROR_FAIL;
 249         }
 250         uint32_t top_used_priority = 0;
 251         retval = target_read_u32(rtos->target,
 252                         rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 253                         &top_used_priority);
 254         if (retval != ERROR_OK)
 255                 return retval;
 256         LOG_DEBUG("FreeRTOS: Read uxTopUsedPriority at 0x%" PRIx64 ", value %" PRIu32,
 257                                                                                 rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 258                                                                                 top_used_priority);
 259         if (top_used_priority > FREERTOS_MAX_PRIORITIES) {
 260                 LOG_ERROR("FreeRTOS top used priority is unreasonably big, not proceeding: %" PRIu32,
 261                         top_used_priority);
 262                 return ERROR_FAIL;
 263         }
 264
 265         /* uxTopUsedPriority was defined as configMAX_PRIORITIES - 1
 266          * in old FreeRTOS versions (before V7.5.3)
 267          * Use contrib/rtos-helpers/FreeRTOS-openocd.c to get compatible symbol
 268          * in newer FreeRTOS versions.
 269          * Here we restore the original configMAX_PRIORITIES value */
 270         unsigned int config_max_priorities = top_used_priority + 1;
 271
 272         symbol_address_t *list_of_lists =
 273                 malloc(sizeof(symbol_address_t) * (config_max_priorities + 5));
 274         if (!list_of_lists) {
 275                 LOG_ERROR("Error allocating memory for %u priorities", config_max_priorities);
 276                 return ERROR_FAIL;
 277         }
 278
 279         unsigned int num_lists;
 280         for (num_lists = 0; num_lists < config_max_priorities; num_lists++)
 281                 list_of_lists[num_lists] = rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address +
 282                         num_lists * param->list_width;
 283
 284         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList1].address;
 285         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList2].address;
 286         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xPendingReadyList].address;
 287         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xSuspendedTaskList].address;
 288         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xTasksWaitingTermination].address;
 289
 290         for (unsigned int i = 0; i < num_lists; i++) {
 291                 if (list_of_lists[i] == 0)
 292                         continue;
 293
 294                 /* Read the number of threads in this list */
 295                 uint32_t list_thread_count = 0;
 296                 retval = target_read_u32(rtos->target,
 297                                 list_of_lists[i],
 298                                 &list_thread_count);
 299                 if (retval != ERROR_OK) {
 300                         LOG_ERROR("Error reading number of threads in FreeRTOS thread list");
 301                         free(list_of_lists);
 302                         return retval;
 303                 }
 304                 LOG_DEBUG("FreeRTOS: Read thread count for list %u at 0x%" PRIx64 ", value %" PRIu32,
 305                                                                                 i, list_of_lists[i], list_thread_count);
 306
 307                 if (list_thread_count == 0)
 308                         continue;
 309
 310                 /* Read the location of first list item */
 311                 uint32_t prev_list_elem_ptr = -1;
 312                 uint32_t list_elem_ptr = 0;
 313                 retval = target_read_u32(rtos->target,
 314                                 list_of_lists[i] + param->list_next_offset,
 315                                 &list_elem_ptr);
 316                 if (retval != ERROR_OK) {
 317                         LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 318                         free(list_of_lists);
 319                         return retval;
 320                 }
 321                 LOG_DEBUG("FreeRTOS: Read first item for list %u at 0x%" PRIx64 ", value 0x%" PRIx32,
 322                                                                                 i, list_of_lists[i] + param->list_next_offset, list_elem_ptr);
 323
 324                 while ((list_thread_count > 0) && (list_elem_ptr != 0) &&
 325                                 (list_elem_ptr != prev_list_elem_ptr) &&
 326                                 (tasks_found < thread_list_size)) {
 327                         /* Get the location of the thread structure. */
 328                         rtos->thread_details[tasks_found].threadid = 0;
 329                         retval = target_read_u32(rtos->target,
 330                                         list_elem_ptr + param->list_elem_content_offset,
 331                                         &pointer_casts_are_bad);
 332                         if (retval != ERROR_OK) {
 333                                 LOG_ERROR("Error reading thread list item object in FreeRTOS thread list");
 334                                 free(list_of_lists);
 335                                 return retval;
 336                         }
 337                         rtos->thread_details[tasks_found].threadid = pointer_casts_are_bad;
 338                         LOG_DEBUG("FreeRTOS: Read Thread ID at 0x%" PRIx32 ", value 0x%" PRIx64,
 339                                                                                 list_elem_ptr + param->list_elem_content_offset,
 340                                                                                 rtos->thread_details[tasks_found].threadid);
 341
 342                         /* get thread name */
 343
 344                         #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 345                         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 346
 347                         /* Read the thread name */
 348                         retval = target_read_buffer(rtos->target,
 349                                         rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 350                                         FREERTOS_THREAD_NAME_STR_SIZE,
 351                                         (uint8_t *)&tmp_str);
 352                         if (retval != ERROR_OK) {
 353                                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 354                                 free(list_of_lists);
 355                                 return retval;
 356                         }
 357                         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 358                         LOG_DEBUG("FreeRTOS: Read Thread Name at 0x%" PRIx64 ", value '%s'",
 359                                                                                 rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 360                                                                                 tmp_str);
 361
 362                         if (tmp_str[0] == '\x00')
 363                                 strcpy(tmp_str, "No Name");
 364
 365                         rtos->thread_details[tasks_found].thread_name_str =
 366                                 malloc(strlen(tmp_str)+1);
 367                         strcpy(rtos->thread_details[tasks_found].thread_name_str, tmp_str);
 368                         rtos->thread_details[tasks_found].exists = true;
 369
 370                         if (rtos->thread_details[tasks_found].threadid == rtos->current_thread) {
 371                                 char running_str[] = "State: Running";
 372                                 rtos->thread_details[tasks_found].extra_info_str = malloc(
 373                                                 sizeof(running_str));
 374                                 strcpy(rtos->thread_details[tasks_found].extra_info_str,
 375                                         running_str);
 376                         } else
 377                                 rtos->thread_details[tasks_found].extra_info_str = NULL;
 378
 379                         tasks_found++;
 380                         list_thread_count--;
 381
 382                         prev_list_elem_ptr = list_elem_ptr;
 383                         list_elem_ptr = 0;
 384                         retval = target_read_u32(rtos->target,
 385                                         prev_list_elem_ptr + param->list_elem_next_offset,
 386                                         &list_elem_ptr);
 387                         if (retval != ERROR_OK) {
 388                                 LOG_ERROR("Error reading next thread item location in FreeRTOS thread list");
 389                                 free(list_of_lists);
 390                                 return retval;
 391                         }
 392                         LOG_DEBUG("FreeRTOS: Read next thread location at 0x%" PRIx32 ", value 0x%" PRIx32,
 393                                                                                 prev_list_elem_ptr + param->list_elem_next_offset,
 394                                                                                 list_elem_ptr);
 395                 }
 396         }
 397
 398         free(list_of_lists);
 399         rtos->thread_count = tasks_found;
 400         return 0;
 401 }
 402
 403 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 404                 struct rtos_reg **reg_list, int *num_regs)
 405 {
 406         int retval;
 407         const struct FreeRTOS_params *param;
 408         int64_t stack_ptr = 0;
 409
 410         if (rtos == NULL)
 411                 return -1;
 412
 413         if (thread_id == 0)
 414                 return -2;
 415
 416         if (rtos->rtos_specific_params == NULL)
 417                 return -1;
 418
 419         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 420
 421         /* Read the stack pointer */
 422         uint32_t pointer_casts_are_bad;
 423         retval = target_read_u32(rtos->target,
 424                         thread_id + param->thread_stack_offset,
 425                         &pointer_casts_are_bad);
 426         if (retval != ERROR_OK) {
 427                 LOG_ERROR("Error reading stack frame from FreeRTOS thread");
 428                 return retval;
 429         }
 430         stack_ptr = pointer_casts_are_bad;
 431         LOG_DEBUG("FreeRTOS: Read stack pointer at 0x%" PRIx64 ", value 0x%" PRIx64,
 432                                                                                 thread_id + param->thread_stack_offset,
 433                                                                                 stack_ptr);
 434
 435         /* Check for armv7m with *enabled* FPU, i.e. a Cortex-M4F */
 436         int cm4_fpu_enabled = 0;
 437         struct armv7m_common *armv7m_target = target_to_armv7m(rtos->target);
 438         if (is_armv7m(armv7m_target)) {
 439                 if (armv7m_target->fp_feature == FPV4_SP) {
 440                         /* Found ARM v7m target which includes a FPU */
 441                         uint32_t cpacr;
 442
 443                         retval = target_read_u32(rtos->target, FPU_CPACR, &cpacr);
 444                         if (retval != ERROR_OK) {
 445                                 LOG_ERROR("Could not read CPACR register to check FPU state");
 446                                 return -1;
 447                         }
 448
 449                         /* Check if CP10 and CP11 are set to full access. */
 450                         if (cpacr & 0x00F00000) {
 451                                 /* Found target with enabled FPU */
 452                                 cm4_fpu_enabled = 1;
 453                         }
 454                 }
 455         }
 456
 457         if (cm4_fpu_enabled == 1) {
 458                 /* Read the LR to decide between stacking with or without FPU */
 459                 uint32_t LR_svc = 0;
 460                 retval = target_read_u32(rtos->target,
 461                                 stack_ptr + 0x20,
 462                                 &LR_svc);
 463                 if (retval != ERROR_OK) {
 464                         LOG_OUTPUT("Error reading stack frame from FreeRTOS thread");
 465                         return retval;
 466                 }
 467                 if ((LR_svc & 0x10) == 0)
 468                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f_fpu, stack_ptr, reg_list, num_regs);
 469                 else
 470                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f, stack_ptr, reg_list, num_regs);
 471         } else
 472                 return rtos_generic_stack_read(rtos->target, param->stacking_info_cm3, stack_ptr, reg_list, num_regs);
 473 }
 474
 475 static int FreeRTOS_get_symbol_list_to_lookup(struct symbol_table_elem *symbol_list[])
 476 {
 477         unsigned int i;
 478         *symbol_list = calloc(
 479                         ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(struct symbol_table_elem));
 480
 481         for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++) {
 482                 (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i].name;
 483                 (*symbol_list)[i].optional = FreeRTOS_symbol_list[i].optional;
 484         }
 485
 486         return 0;
 487 }
 488
 489 #if 0
 490
 491 static int FreeRTOS_set_current_thread(struct rtos *rtos, threadid_t thread_id)
 492 {
 493         return 0;
 494 }
 495
 496 static int FreeRTOS_get_thread_ascii_info(struct rtos *rtos, threadid_t thread_id, char **info)
 497 {
 498         int retval;
 499         const struct FreeRTOS_params *param;
 500
 501         if (rtos == NULL)
 502                 return -1;
 503
 504         if (thread_id == 0)
 505                 return -2;
 506
 507         if (rtos->rtos_specific_params == NULL)
 508                 return -3;
 509
 510         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 511
 512 #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 513         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 514
 515         /* Read the thread name */
 516         retval = target_read_buffer(rtos->target,
 517                         thread_id + param->thread_name_offset,
 518                         FREERTOS_THREAD_NAME_STR_SIZE,
 519                         (uint8_t *)&tmp_str);
 520         if (retval != ERROR_OK) {
 521                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 522                 return retval;
 523         }
 524         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 525
 526         if (tmp_str[0] == '\x00')
 527                 strcpy(tmp_str, "No Name");
 528
 529         *info = malloc(strlen(tmp_str)+1);
 530         strcpy(*info, tmp_str);
 531         return 0;
 532 }
 533
 534 #endif
 535
 536 static bool FreeRTOS_detect_rtos(struct target *target)
 537 {
 538         if ((target->rtos->symbols != NULL) &&
 539                         (target->rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address != 0)) {
 540                 /* looks like FreeRTOS */
 541                 return true;
 542         }
 543         return false;
 544 }
 545
 546 static int FreeRTOS_create(struct target *target)
 547 {
 548         for (unsigned int i = 0; i < ARRAY_SIZE(FreeRTOS_params_list); i++)
 549                 if (strcmp(FreeRTOS_params_list[i].target_name, target->type->name) == 0) {
 550                         target->rtos->rtos_specific_params = (void *)&FreeRTOS_params_list[i];
 551                         return 0;
 552                 }
 553
 554         LOG_ERROR("Could not find target in FreeRTOS compatibility list");
 555         return -1;
 556 }