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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 #define FREERTOS_NUM_PARAMS ((int)(sizeof(FreeRTOS_params_list)/sizeof(struct FreeRTOS_params)))
 106
 107 static bool FreeRTOS_detect_rtos(struct target *target);
 108 static int FreeRTOS_create(struct target *target);
 109 static int FreeRTOS_update_threads(struct rtos *rtos);
 110 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 111                 struct rtos_reg **reg_list, int *num_regs);
 112 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
 113
 114 struct rtos_type FreeRTOS_rtos = {
 115         .name = "FreeRTOS",
 116
 117         .detect_rtos = FreeRTOS_detect_rtos,
 118         .create = FreeRTOS_create,
 119         .update_threads = FreeRTOS_update_threads,
 120         .get_thread_reg_list = FreeRTOS_get_thread_reg_list,
 121         .get_symbol_list_to_lookup = FreeRTOS_get_symbol_list_to_lookup,
 122 };
 123
 124 enum FreeRTOS_symbol_values {
 125         FreeRTOS_VAL_pxCurrentTCB = 0,
 126         FreeRTOS_VAL_pxReadyTasksLists = 1,
 127         FreeRTOS_VAL_xDelayedTaskList1 = 2,
 128         FreeRTOS_VAL_xDelayedTaskList2 = 3,
 129         FreeRTOS_VAL_pxDelayedTaskList = 4,
 130         FreeRTOS_VAL_pxOverflowDelayedTaskList = 5,
 131         FreeRTOS_VAL_xPendingReadyList = 6,
 132         FreeRTOS_VAL_xTasksWaitingTermination = 7,
 133         FreeRTOS_VAL_xSuspendedTaskList = 8,
 134         FreeRTOS_VAL_uxCurrentNumberOfTasks = 9,
 135         FreeRTOS_VAL_uxTopUsedPriority = 10,
 136 };
 137
 138 struct symbols {
 139         const char *name;
 140         bool optional;
 141 };
 142
 143 static const struct symbols FreeRTOS_symbol_list[] = {
 144         { "pxCurrentTCB", false },
 145         { "pxReadyTasksLists", false },
 146         { "xDelayedTaskList1", false },
 147         { "xDelayedTaskList2", false },
 148         { "pxDelayedTaskList", false },
 149         { "pxOverflowDelayedTaskList", false },
 150         { "xPendingReadyList", false },
 151         { "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
 152         { "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
 153         { "uxCurrentNumberOfTasks", false },
 154         { "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
 155         { NULL, false }
 156 };
 157
 158 /* TODO: */
 159 /* this is not safe for little endian yet */
 160 /* may be problems reading if sizes are not 32 bit long integers. */
 161 /* test mallocs for failure */
 162
 163 static int FreeRTOS_update_threads(struct rtos *rtos)
 164 {
 165         int retval;
 166         unsigned int tasks_found = 0;
 167         const struct FreeRTOS_params *param;
 168
 169         if (rtos->rtos_specific_params == NULL)
 170                 return -1;
 171
 172         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 173
 174         if (rtos->symbols == NULL) {
 175                 LOG_ERROR("No symbols for FreeRTOS");
 176                 return -3;
 177         }
 178
 179         if (rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address == 0) {
 180                 LOG_ERROR("Don't have the number of threads in FreeRTOS");
 181                 return -2;
 182         }
 183
 184         uint32_t thread_list_size = 0;
 185         retval = target_read_u32(rtos->target,
 186                         rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 187                         &thread_list_size);
 188         LOG_DEBUG("FreeRTOS: Read uxCurrentNumberOfTasks at 0x%" PRIx64 ", value %" PRIu32,
 189                                                                                 rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 190                                                                                 thread_list_size);
 191
 192         if (retval != ERROR_OK) {
 193                 LOG_ERROR("Could not read FreeRTOS thread count from target");
 194                 return retval;
 195         }
 196
 197         /* wipe out previous thread details if any */
 198         rtos_free_threadlist(rtos);
 199
 200         /* read the current thread */
 201         uint32_t pointer_casts_are_bad;
 202         retval = target_read_u32(rtos->target,
 203                         rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 204                         &pointer_casts_are_bad);
 205         if (retval != ERROR_OK) {
 206                 LOG_ERROR("Error reading current thread in FreeRTOS thread list");
 207                 return retval;
 208         }
 209         rtos->current_thread = pointer_casts_are_bad;
 210         LOG_DEBUG("FreeRTOS: Read pxCurrentTCB at 0x%" PRIx64 ", value 0x%" PRIx64,
 211                                                                                 rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 212                                                                                 rtos->current_thread);
 213
 214         if ((thread_list_size  == 0) || (rtos->current_thread == 0)) {
 215                 /* Either : No RTOS threads - there is always at least the current execution though */
 216                 /* OR     : No current thread - all threads suspended - show the current execution
 217                  * of idling */
 218                 char tmp_str[] = "Current Execution";
 219                 thread_list_size++;
 220                 tasks_found++;
 221                 rtos->thread_details = malloc(
 222                                 sizeof(struct thread_detail) * thread_list_size);
 223                 if (!rtos->thread_details) {
 224                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 225                         return ERROR_FAIL;
 226                 }
 227                 rtos->thread_details->threadid = 1;
 228                 rtos->thread_details->exists = true;
 229                 rtos->thread_details->extra_info_str = NULL;
 230                 rtos->thread_details->thread_name_str = malloc(sizeof(tmp_str));
 231                 strcpy(rtos->thread_details->thread_name_str, tmp_str);
 232
 233                 if (thread_list_size == 1) {
 234                         rtos->thread_count = 1;
 235                         return ERROR_OK;
 236                 }
 237         } else {
 238                 /* create space for new thread details */
 239                 rtos->thread_details = malloc(
 240                                 sizeof(struct thread_detail) * thread_list_size);
 241                 if (!rtos->thread_details) {
 242                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 243                         return ERROR_FAIL;
 244                 }
 245         }
 246
 247         /* Find out how many lists are needed to be read from pxReadyTasksLists, */
 248         if (rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address == 0) {
 249                 LOG_ERROR("FreeRTOS: uxTopUsedPriority is not defined, consult the OpenOCD manual for a work-around");
 250                 return ERROR_FAIL;
 251         }
 252         uint32_t top_used_priority = 0;
 253         retval = target_read_u32(rtos->target,
 254                         rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 255                         &top_used_priority);
 256         if (retval != ERROR_OK)
 257                 return retval;
 258         LOG_DEBUG("FreeRTOS: Read uxTopUsedPriority at 0x%" PRIx64 ", value %" PRIu32,
 259                                                                                 rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 260                                                                                 top_used_priority);
 261         if (top_used_priority > FREERTOS_MAX_PRIORITIES) {
 262                 LOG_ERROR("FreeRTOS top used priority is unreasonably big, not proceeding: %" PRIu32,
 263                         top_used_priority);
 264                 return ERROR_FAIL;
 265         }
 266
 267         /* uxTopUsedPriority was defined as configMAX_PRIORITIES - 1
 268          * in old FreeRTOS versions (before V7.5.3)
 269          * Use contrib/rtos-helpers/FreeRTOS-openocd.c to get compatible symbol
 270          * in newer FreeRTOS versions.
 271          * Here we restore the original configMAX_PRIORITIES value */
 272         unsigned int config_max_priorities = top_used_priority + 1;
 273
 274         symbol_address_t *list_of_lists =
 275                 malloc(sizeof(symbol_address_t) * (config_max_priorities + 5));
 276         if (!list_of_lists) {
 277                 LOG_ERROR("Error allocating memory for %u priorities", config_max_priorities);
 278                 return ERROR_FAIL;
 279         }
 280
 281         unsigned int num_lists;
 282         for (num_lists = 0; num_lists < config_max_priorities; num_lists++)
 283                 list_of_lists[num_lists] = rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address +
 284                         num_lists * param->list_width;
 285
 286         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList1].address;
 287         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList2].address;
 288         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xPendingReadyList].address;
 289         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xSuspendedTaskList].address;
 290         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xTasksWaitingTermination].address;
 291
 292         for (unsigned int i = 0; i < num_lists; i++) {
 293                 if (list_of_lists[i] == 0)
 294                         continue;
 295
 296                 /* Read the number of threads in this list */
 297                 uint32_t list_thread_count = 0;
 298                 retval = target_read_u32(rtos->target,
 299                                 list_of_lists[i],
 300                                 &list_thread_count);
 301                 if (retval != ERROR_OK) {
 302                         LOG_ERROR("Error reading number of threads in FreeRTOS thread list");
 303                         free(list_of_lists);
 304                         return retval;
 305                 }
 306                 LOG_DEBUG("FreeRTOS: Read thread count for list %u at 0x%" PRIx64 ", value %" PRIu32,
 307                                                                                 i, list_of_lists[i], list_thread_count);
 308
 309                 if (list_thread_count == 0)
 310                         continue;
 311
 312                 /* Read the location of first list item */
 313                 uint32_t prev_list_elem_ptr = -1;
 314                 uint32_t list_elem_ptr = 0;
 315                 retval = target_read_u32(rtos->target,
 316                                 list_of_lists[i] + param->list_next_offset,
 317                                 &list_elem_ptr);
 318                 if (retval != ERROR_OK) {
 319                         LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 320                         free(list_of_lists);
 321                         return retval;
 322                 }
 323                 LOG_DEBUG("FreeRTOS: Read first item for list %u at 0x%" PRIx64 ", value 0x%" PRIx32,
 324                                                                                 i, list_of_lists[i] + param->list_next_offset, list_elem_ptr);
 325
 326                 while ((list_thread_count > 0) && (list_elem_ptr != 0) &&
 327                                 (list_elem_ptr != prev_list_elem_ptr) &&
 328                                 (tasks_found < thread_list_size)) {
 329                         /* Get the location of the thread structure. */
 330                         rtos->thread_details[tasks_found].threadid = 0;
 331                         retval = target_read_u32(rtos->target,
 332                                         list_elem_ptr + param->list_elem_content_offset,
 333                                         &pointer_casts_are_bad);
 334                         if (retval != ERROR_OK) {
 335                                 LOG_ERROR("Error reading thread list item object in FreeRTOS thread list");
 336                                 free(list_of_lists);
 337                                 return retval;
 338                         }
 339                         rtos->thread_details[tasks_found].threadid = pointer_casts_are_bad;
 340                         LOG_DEBUG("FreeRTOS: Read Thread ID at 0x%" PRIx32 ", value 0x%" PRIx64,
 341                                                                                 list_elem_ptr + param->list_elem_content_offset,
 342                                                                                 rtos->thread_details[tasks_found].threadid);
 343
 344                         /* get thread name */
 345
 346                         #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 347                         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 348
 349                         /* Read the thread name */
 350                         retval = target_read_buffer(rtos->target,
 351                                         rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 352                                         FREERTOS_THREAD_NAME_STR_SIZE,
 353                                         (uint8_t *)&tmp_str);
 354                         if (retval != ERROR_OK) {
 355                                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 356                                 free(list_of_lists);
 357                                 return retval;
 358                         }
 359                         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 360                         LOG_DEBUG("FreeRTOS: Read Thread Name at 0x%" PRIx64 ", value '%s'",
 361                                                                                 rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 362                                                                                 tmp_str);
 363
 364                         if (tmp_str[0] == '\x00')
 365                                 strcpy(tmp_str, "No Name");
 366
 367                         rtos->thread_details[tasks_found].thread_name_str =
 368                                 malloc(strlen(tmp_str)+1);
 369                         strcpy(rtos->thread_details[tasks_found].thread_name_str, tmp_str);
 370                         rtos->thread_details[tasks_found].exists = true;
 371
 372                         if (rtos->thread_details[tasks_found].threadid == rtos->current_thread) {
 373                                 char running_str[] = "State: Running";
 374                                 rtos->thread_details[tasks_found].extra_info_str = malloc(
 375                                                 sizeof(running_str));
 376                                 strcpy(rtos->thread_details[tasks_found].extra_info_str,
 377                                         running_str);
 378                         } else
 379                                 rtos->thread_details[tasks_found].extra_info_str = NULL;
 380
 381                         tasks_found++;
 382                         list_thread_count--;
 383
 384                         prev_list_elem_ptr = list_elem_ptr;
 385                         list_elem_ptr = 0;
 386                         retval = target_read_u32(rtos->target,
 387                                         prev_list_elem_ptr + param->list_elem_next_offset,
 388                                         &list_elem_ptr);
 389                         if (retval != ERROR_OK) {
 390                                 LOG_ERROR("Error reading next thread item location in FreeRTOS thread list");
 391                                 free(list_of_lists);
 392                                 return retval;
 393                         }
 394                         LOG_DEBUG("FreeRTOS: Read next thread location at 0x%" PRIx32 ", value 0x%" PRIx32,
 395                                                                                 prev_list_elem_ptr + param->list_elem_next_offset,
 396                                                                                 list_elem_ptr);
 397                 }
 398         }
 399
 400         free(list_of_lists);
 401         rtos->thread_count = tasks_found;
 402         return 0;
 403 }
 404
 405 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
 406                 struct rtos_reg **reg_list, int *num_regs)
 407 {
 408         int retval;
 409         const struct FreeRTOS_params *param;
 410         int64_t stack_ptr = 0;
 411
 412         if (rtos == NULL)
 413                 return -1;
 414
 415         if (thread_id == 0)
 416                 return -2;
 417
 418         if (rtos->rtos_specific_params == NULL)
 419                 return -1;
 420
 421         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 422
 423         /* Read the stack pointer */
 424         uint32_t pointer_casts_are_bad;
 425         retval = target_read_u32(rtos->target,
 426                         thread_id + param->thread_stack_offset,
 427                         &pointer_casts_are_bad);
 428         if (retval != ERROR_OK) {
 429                 LOG_ERROR("Error reading stack frame from FreeRTOS thread");
 430                 return retval;
 431         }
 432         stack_ptr = pointer_casts_are_bad;
 433         LOG_DEBUG("FreeRTOS: Read stack pointer at 0x%" PRIx64 ", value 0x%" PRIx64,
 434                                                                                 thread_id + param->thread_stack_offset,
 435                                                                                 stack_ptr);
 436
 437         /* Check for armv7m with *enabled* FPU, i.e. a Cortex-M4F */
 438         int cm4_fpu_enabled = 0;
 439         struct armv7m_common *armv7m_target = target_to_armv7m(rtos->target);
 440         if (is_armv7m(armv7m_target)) {
 441                 if (armv7m_target->fp_feature == FPv4_SP) {
 442                         /* Found ARM v7m target which includes a FPU */
 443                         uint32_t cpacr;
 444
 445                         retval = target_read_u32(rtos->target, FPU_CPACR, &cpacr);
 446                         if (retval != ERROR_OK) {
 447                                 LOG_ERROR("Could not read CPACR register to check FPU state");
 448                                 return -1;
 449                         }
 450
 451                         /* Check if CP10 and CP11 are set to full access. */
 452                         if (cpacr & 0x00F00000) {
 453                                 /* Found target with enabled FPU */
 454                                 cm4_fpu_enabled = 1;
 455                         }
 456                 }
 457         }
 458
 459         if (cm4_fpu_enabled == 1) {
 460                 /* Read the LR to decide between stacking with or without FPU */
 461                 uint32_t LR_svc = 0;
 462                 retval = target_read_u32(rtos->target,
 463                                 stack_ptr + 0x20,
 464                                 &LR_svc);
 465                 if (retval != ERROR_OK) {
 466                         LOG_OUTPUT("Error reading stack frame from FreeRTOS thread");
 467                         return retval;
 468                 }
 469                 if ((LR_svc & 0x10) == 0)
 470                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f_fpu, stack_ptr, reg_list, num_regs);
 471                 else
 472                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f, stack_ptr, reg_list, num_regs);
 473         } else
 474                 return rtos_generic_stack_read(rtos->target, param->stacking_info_cm3, stack_ptr, reg_list, num_regs);
 475 }
 476
 477 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 478 {
 479         unsigned int i;
 480         *symbol_list = calloc(
 481                         ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(symbol_table_elem_t));
 482
 483         for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++) {
 484                 (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i].name;
 485                 (*symbol_list)[i].optional = FreeRTOS_symbol_list[i].optional;
 486         }
 487
 488         return 0;
 489 }
 490
 491 #if 0
 492
 493 static int FreeRTOS_set_current_thread(struct rtos *rtos, threadid_t thread_id)
 494 {
 495         return 0;
 496 }
 497
 498 static int FreeRTOS_get_thread_ascii_info(struct rtos *rtos, threadid_t thread_id, char **info)
 499 {
 500         int retval;
 501         const struct FreeRTOS_params *param;
 502
 503         if (rtos == NULL)
 504                 return -1;
 505
 506         if (thread_id == 0)
 507                 return -2;
 508
 509         if (rtos->rtos_specific_params == NULL)
 510                 return -3;
 511
 512         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 513
 514 #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 515         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 516
 517         /* Read the thread name */
 518         retval = target_read_buffer(rtos->target,
 519                         thread_id + param->thread_name_offset,
 520                         FREERTOS_THREAD_NAME_STR_SIZE,
 521                         (uint8_t *)&tmp_str);
 522         if (retval != ERROR_OK) {
 523                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 524                 return retval;
 525         }
 526         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 527
 528         if (tmp_str[0] == '\x00')
 529                 strcpy(tmp_str, "No Name");
 530
 531         *info = malloc(strlen(tmp_str)+1);
 532         strcpy(*info, tmp_str);
 533         return 0;
 534 }
 535
 536 #endif
 537
 538 static bool FreeRTOS_detect_rtos(struct target *target)
 539 {
 540         if ((target->rtos->symbols != NULL) &&
 541                         (target->rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address != 0)) {
 542                 /* looks like FreeRTOS */
 543                 return true;
 544         }
 545         return false;
 546 }
 547
 548 static int FreeRTOS_create(struct target *target)
 549 {
 550         int i = 0;
 551         while ((i < FREERTOS_NUM_PARAMS) &&
 552                         (0 != strcmp(FreeRTOS_params_list[i].target_name, target->type->name))) {
 553                 i++;
 554         }
 555         if (i >= FREERTOS_NUM_PARAMS) {
 556                 LOG_ERROR("Could not find target in FreeRTOS compatibility list");
 557                 return -1;
 558         }
 559
 560         target->rtos->rtos_specific_params = (void *) &FreeRTOS_params_list[i];
 561         return 0;
 562 }