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, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  19  ***************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <helper/time_support.h>
  26 #include <jtag/jtag.h>
  27 #include "target/target.h"
  28 #include "target/target_type.h"
  29 #include "rtos.h"
  30 #include "helper/log.h"
  31 #include "helper/types.h"
  32 #include "rtos_standard_stackings.h"
  33 #include "target/armv7m.h"
  34 #include "target/cortex_m.h"
  35
  36
  37
  38 #define FREERTOS_MAX_PRIORITIES 63
  39
  40 #define FreeRTOS_STRUCT(int_type, ptr_type, list_prev_offset)
  41
  42 struct FreeRTOS_params {
  43         const char *target_name;
  44         const unsigned char thread_count_width;
  45         const unsigned char pointer_width;
  46         const unsigned char list_next_offset;
  47         const unsigned char list_width;
  48         const unsigned char list_elem_next_offset;
  49         const unsigned char list_elem_content_offset;
  50         const unsigned char thread_stack_offset;
  51         const unsigned char thread_name_offset;
  52         const struct rtos_register_stacking *stacking_info_cm3;
  53         const struct rtos_register_stacking *stacking_info_cm4f;
  54         const struct rtos_register_stacking *stacking_info_cm4f_fpu;
  55 };
  56
  57 static const struct FreeRTOS_params FreeRTOS_params_list[] = {
  58         {
  59         "cortex_m",                     /* target_name */
  60         4,                                              /* thread_count_width; */
  61         4,                                              /* pointer_width; */
  62         16,                                             /* list_next_offset; */
  63         20,                                             /* list_width; */
  64         8,                                              /* list_elem_next_offset; */
  65         12,                                             /* list_elem_content_offset */
  66         0,                                              /* thread_stack_offset; */
  67         52,                                             /* thread_name_offset; */
  68         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  69         &rtos_standard_Cortex_M4F_stacking,
  70         &rtos_standard_Cortex_M4F_FPU_stacking,
  71         },
  72         {
  73         "hla_target",                   /* target_name */
  74         4,                                              /* thread_count_width; */
  75         4,                                              /* pointer_width; */
  76         16,                                             /* list_next_offset; */
  77         20,                                             /* list_width; */
  78         8,                                              /* list_elem_next_offset; */
  79         12,                                             /* list_elem_content_offset */
  80         0,                                              /* thread_stack_offset; */
  81         52,                                             /* thread_name_offset; */
  82         &rtos_standard_Cortex_M3_stacking,      /* stacking_info */
  83         &rtos_standard_Cortex_M4F_stacking,
  84         &rtos_standard_Cortex_M4F_FPU_stacking,
  85         },
  86         {
  87         "nds32_v3",                     /* target_name */
  88         4,                                              /* thread_count_width; */
  89         4,                                              /* pointer_width; */
  90         16,                                             /* list_next_offset; */
  91         20,                                             /* list_width; */
  92         8,                                              /* list_elem_next_offset; */
  93         12,                                             /* list_elem_content_offset */
  94         0,                                              /* thread_stack_offset; */
  95         52,                                             /* thread_name_offset; */
  96         &rtos_standard_NDS32_N1068_stacking,    /* stacking_info */
  97         &rtos_standard_Cortex_M4F_stacking,
  98         &rtos_standard_Cortex_M4F_FPU_stacking,
  99         },
 100 };
 101
 102 #define FREERTOS_NUM_PARAMS ((int)(sizeof(FreeRTOS_params_list)/sizeof(struct FreeRTOS_params)))
 103
 104 static int FreeRTOS_detect_rtos(struct target *target);
 105 static int FreeRTOS_create(struct target *target);
 106 static int FreeRTOS_update_threads(struct rtos *rtos);
 107 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list);
 108 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
 109
 110 struct rtos_type FreeRTOS_rtos = {
 111         .name = "FreeRTOS",
 112
 113         .detect_rtos = FreeRTOS_detect_rtos,
 114         .create = FreeRTOS_create,
 115         .update_threads = FreeRTOS_update_threads,
 116         .get_thread_reg_list = FreeRTOS_get_thread_reg_list,
 117         .get_symbol_list_to_lookup = FreeRTOS_get_symbol_list_to_lookup,
 118 };
 119
 120 enum FreeRTOS_symbol_values {
 121         FreeRTOS_VAL_pxCurrentTCB = 0,
 122         FreeRTOS_VAL_pxReadyTasksLists = 1,
 123         FreeRTOS_VAL_xDelayedTaskList1 = 2,
 124         FreeRTOS_VAL_xDelayedTaskList2 = 3,
 125         FreeRTOS_VAL_pxDelayedTaskList = 4,
 126         FreeRTOS_VAL_pxOverflowDelayedTaskList = 5,
 127         FreeRTOS_VAL_xPendingReadyList = 6,
 128         FreeRTOS_VAL_xTasksWaitingTermination = 7,
 129         FreeRTOS_VAL_xSuspendedTaskList = 8,
 130         FreeRTOS_VAL_uxCurrentNumberOfTasks = 9,
 131         FreeRTOS_VAL_uxTopUsedPriority = 10,
 132 };
 133
 134 struct symbols {
 135         const char *name;
 136         bool optional;
 137 };
 138
 139 static const struct symbols FreeRTOS_symbol_list[] = {
 140         { "pxCurrentTCB", false },
 141         { "pxReadyTasksLists", false },
 142         { "xDelayedTaskList1", false },
 143         { "xDelayedTaskList2", false },
 144         { "pxDelayedTaskList", false },
 145         { "pxOverflowDelayedTaskList", false },
 146         { "xPendingReadyList", false },
 147         { "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
 148         { "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
 149         { "uxCurrentNumberOfTasks", false },
 150         { "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
 151         { NULL, false }
 152 };
 153
 154 /* TODO: */
 155 /* this is not safe for little endian yet */
 156 /* may be problems reading if sizes are not 32 bit long integers. */
 157 /* test mallocs for failure */
 158
 159 static int FreeRTOS_update_threads(struct rtos *rtos)
 160 {
 161         int i = 0;
 162         int retval;
 163         int tasks_found = 0;
 164         const struct FreeRTOS_params *param;
 165
 166         if (rtos->rtos_specific_params == NULL)
 167                 return -1;
 168
 169         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 170
 171         if (rtos->symbols == NULL) {
 172                 LOG_ERROR("No symbols for FreeRTOS");
 173                 return -3;
 174         }
 175
 176         if (rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address == 0) {
 177                 LOG_ERROR("Don't have the number of threads in FreeRTOS");
 178                 return -2;
 179         }
 180
 181         int thread_list_size = 0;
 182         retval = target_read_buffer(rtos->target,
 183                         rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 184                         param->thread_count_width,
 185                         (uint8_t *)&thread_list_size);
 186         LOG_DEBUG("FreeRTOS: Read uxCurrentNumberOfTasks at 0x%" PRIx64 ", value %d\r\n",
 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         retval = target_read_buffer(rtos->target,
 200                         rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 201                         param->pointer_width,
 202                         (uint8_t *)&rtos->current_thread);
 203         if (retval != ERROR_OK) {
 204                 LOG_ERROR("Error reading current thread in FreeRTOS thread list");
 205                 return retval;
 206         }
 207         LOG_DEBUG("FreeRTOS: Read pxCurrentTCB at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 208                                                                                 rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 209                                                                                 rtos->current_thread);
 210
 211         if ((thread_list_size  == 0) || (rtos->current_thread == 0)) {
 212                 /* Either : No RTOS threads - there is always at least the current execution though */
 213                 /* OR     : No current thread - all threads suspended - show the current execution
 214                  * of idling */
 215                 char tmp_str[] = "Current Execution";
 216                 thread_list_size++;
 217                 tasks_found++;
 218                 rtos->thread_details = malloc(
 219                                 sizeof(struct thread_detail) * thread_list_size);
 220                 if (!rtos->thread_details) {
 221                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 222                         return ERROR_FAIL;
 223                 }
 224                 rtos->thread_details->threadid = 1;
 225                 rtos->thread_details->exists = true;
 226                 rtos->thread_details->display_str = NULL;
 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         int64_t max_used_priority = 0;
 251         retval = target_read_buffer(rtos->target,
 252                         rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 253                         param->pointer_width,
 254                         (uint8_t *)&max_used_priority);
 255         if (retval != ERROR_OK)
 256                 return retval;
 257         LOG_DEBUG("FreeRTOS: Read uxTopUsedPriority at 0x%" PRIx64 ", value %" PRId64 "\r\n",
 258                                                                                 rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
 259                                                                                 max_used_priority);
 260         if (max_used_priority > FREERTOS_MAX_PRIORITIES) {
 261                 LOG_ERROR("FreeRTOS maximum used priority is unreasonably big, not proceeding: %" PRId64 "",
 262                         max_used_priority);
 263                 return ERROR_FAIL;
 264         }
 265
 266         symbol_address_t *list_of_lists =
 267                 malloc(sizeof(symbol_address_t) *
 268                         (max_used_priority+1 + 5));
 269         if (!list_of_lists) {
 270                 LOG_ERROR("Error allocating memory for %" PRId64 " priorities", max_used_priority);
 271                 return ERROR_FAIL;
 272         }
 273
 274         int num_lists;
 275         for (num_lists = 0; num_lists <= max_used_priority; num_lists++)
 276                 list_of_lists[num_lists] = rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address +
 277                         num_lists * param->list_width;
 278
 279         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList1].address;
 280         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xDelayedTaskList2].address;
 281         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xPendingReadyList].address;
 282         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xSuspendedTaskList].address;
 283         list_of_lists[num_lists++] = rtos->symbols[FreeRTOS_VAL_xTasksWaitingTermination].address;
 284
 285         for (i = 0; i < num_lists; i++) {
 286                 if (list_of_lists[i] == 0)
 287                         continue;
 288
 289                 /* Read the number of threads in this list */
 290                 int64_t list_thread_count = 0;
 291                 retval = target_read_buffer(rtos->target,
 292                                 list_of_lists[i],
 293                                 param->thread_count_width,
 294                                 (uint8_t *)&list_thread_count);
 295                 if (retval != ERROR_OK) {
 296                         LOG_ERROR("Error reading number of threads in FreeRTOS thread list");
 297                         free(list_of_lists);
 298                         return retval;
 299                 }
 300                 LOG_DEBUG("FreeRTOS: Read thread count for list %d at 0x%" PRIx64 ", value %" PRId64 "\r\n",
 301                                                                                 i, list_of_lists[i], list_thread_count);
 302
 303                 if (list_thread_count == 0)
 304                         continue;
 305
 306                 /* Read the location of first list item */
 307                 uint64_t prev_list_elem_ptr = -1;
 308                 uint64_t list_elem_ptr = 0;
 309                 retval = target_read_buffer(rtos->target,
 310                                 list_of_lists[i] + param->list_next_offset,
 311                                 param->pointer_width,
 312                                 (uint8_t *)&list_elem_ptr);
 313                 if (retval != ERROR_OK) {
 314                         LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 315                         free(list_of_lists);
 316                         return retval;
 317                 }
 318                 LOG_DEBUG("FreeRTOS: Read first item for list %d at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 319                                                                                 i, list_of_lists[i] + param->list_next_offset, list_elem_ptr);
 320
 321                 while ((list_thread_count > 0) && (list_elem_ptr != 0) &&
 322                                 (list_elem_ptr != prev_list_elem_ptr) &&
 323                                 (tasks_found < thread_list_size)) {
 324                         /* Get the location of the thread structure. */
 325                         rtos->thread_details[tasks_found].threadid = 0;
 326                         retval = target_read_buffer(rtos->target,
 327                                         list_elem_ptr + param->list_elem_content_offset,
 328                                         param->pointer_width,
 329                                         (uint8_t *)&(rtos->thread_details[tasks_found].threadid));
 330                         if (retval != ERROR_OK) {
 331                                 LOG_ERROR("Error reading thread list item object in FreeRTOS thread list");
 332                                 free(list_of_lists);
 333                                 return retval;
 334                         }
 335                         LOG_DEBUG("FreeRTOS: Read Thread ID at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 336                                                                                 list_elem_ptr + param->list_elem_content_offset,
 337                                                                                 rtos->thread_details[tasks_found].threadid);
 338
 339                         /* get thread name */
 340
 341                         #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 342                         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 343
 344                         /* Read the thread name */
 345                         retval = target_read_buffer(rtos->target,
 346                                         rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 347                                         FREERTOS_THREAD_NAME_STR_SIZE,
 348                                         (uint8_t *)&tmp_str);
 349                         if (retval != ERROR_OK) {
 350                                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 351                                 free(list_of_lists);
 352                                 return retval;
 353                         }
 354                         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 355                         LOG_DEBUG("FreeRTOS: Read Thread Name at 0x%" PRIx64 ", value \"%s\"\r\n",
 356                                                                                 rtos->thread_details[tasks_found].threadid + param->thread_name_offset,
 357                                                                                 tmp_str);
 358
 359                         if (tmp_str[0] == '\x00')
 360                                 strcpy(tmp_str, "No Name");
 361
 362                         rtos->thread_details[tasks_found].thread_name_str =
 363                                 malloc(strlen(tmp_str)+1);
 364                         strcpy(rtos->thread_details[tasks_found].thread_name_str, tmp_str);
 365                         rtos->thread_details[tasks_found].display_str = NULL;
 366                         rtos->thread_details[tasks_found].exists = true;
 367
 368                         if (rtos->thread_details[tasks_found].threadid == rtos->current_thread) {
 369                                 char running_str[] = "Running";
 370                                 rtos->thread_details[tasks_found].extra_info_str = malloc(
 371                                                 sizeof(running_str));
 372                                 strcpy(rtos->thread_details[tasks_found].extra_info_str,
 373                                         running_str);
 374                         } else
 375                                 rtos->thread_details[tasks_found].extra_info_str = NULL;
 376
 377                         tasks_found++;
 378                         list_thread_count--;
 379
 380                         prev_list_elem_ptr = list_elem_ptr;
 381                         list_elem_ptr = 0;
 382                         retval = target_read_buffer(rtos->target,
 383                                         prev_list_elem_ptr + param->list_elem_next_offset,
 384                                         param->pointer_width,
 385                                         (uint8_t *)&list_elem_ptr);
 386                         if (retval != ERROR_OK) {
 387                                 LOG_ERROR("Error reading next thread item location in FreeRTOS thread list");
 388                                 free(list_of_lists);
 389                                 return retval;
 390                         }
 391                         LOG_DEBUG("FreeRTOS: Read next thread location at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 392                                                                                 prev_list_elem_ptr + param->list_elem_next_offset,
 393                                                                                 list_elem_ptr);
 394                 }
 395         }
 396
 397         free(list_of_lists);
 398         rtos->thread_count = tasks_found;
 399         return 0;
 400 }
 401
 402 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list)
 403 {
 404         int retval;
 405         const struct FreeRTOS_params *param;
 406         int64_t stack_ptr = 0;
 407
 408         *hex_reg_list = NULL;
 409         if (rtos == NULL)
 410                 return -1;
 411
 412         if (thread_id == 0)
 413                 return -2;
 414
 415         if (rtos->rtos_specific_params == NULL)
 416                 return -1;
 417
 418         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 419
 420         /* Read the stack pointer */
 421         retval = target_read_buffer(rtos->target,
 422                         thread_id + param->thread_stack_offset,
 423                         param->pointer_width,
 424                         (uint8_t *)&stack_ptr);
 425         if (retval != ERROR_OK) {
 426                 LOG_ERROR("Error reading stack frame from FreeRTOS thread");
 427                 return retval;
 428         }
 429         LOG_DEBUG("FreeRTOS: Read stack pointer at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 430                                                                                 thread_id + param->thread_stack_offset,
 431                                                                                 stack_ptr);
 432
 433         /* Check for armv7m with *enabled* FPU, i.e. a Cortex-M4F */
 434         int cm4_fpu_enabled = 0;
 435         struct armv7m_common *armv7m_target = target_to_armv7m(rtos->target);
 436         if (is_armv7m(armv7m_target)) {
 437                 if (armv7m_target->fp_feature == FPv4_SP) {
 438                         /* Found ARM v7m target which includes a FPU */
 439                         uint32_t cpacr;
 440
 441                         retval = target_read_u32(rtos->target, FPU_CPACR, &cpacr);
 442                         if (retval != ERROR_OK) {
 443                                 LOG_ERROR("Could not read CPACR register to check FPU state");
 444                                 return -1;
 445                         }
 446
 447                         /* Check if CP10 and CP11 are set to full access. */
 448                         if (cpacr & 0x00F00000) {
 449                                 /* Found target with enabled FPU */
 450                                 cm4_fpu_enabled = 1;
 451                         }
 452                 }
 453         }
 454
 455         if (cm4_fpu_enabled == 1) {
 456                 /* Read the LR to decide between stacking with or without FPU */
 457                 uint32_t LR_svc = 0;
 458                 retval = target_read_buffer(rtos->target,
 459                                 stack_ptr + 0x20,
 460                                 param->pointer_width,
 461                                 (uint8_t *)&LR_svc);
 462                 if (retval != ERROR_OK) {
 463                         LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
 464                         return retval;
 465                 }
 466                 if ((LR_svc & 0x10) == 0)
 467                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f_fpu, stack_ptr, hex_reg_list);
 468                 else
 469                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f, stack_ptr, hex_reg_list);
 470         } else
 471                 return rtos_generic_stack_read(rtos->target, param->stacking_info_cm3, stack_ptr, hex_reg_list);
 472 }
 473
 474 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 475 {
 476         unsigned int i;
 477         *symbol_list = calloc(
 478                         ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(symbol_table_elem_t));
 479
 480         for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++) {
 481                 (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i].name;
 482                 (*symbol_list)[i].optional = FreeRTOS_symbol_list[i].optional;
 483         }
 484
 485         return 0;
 486 }
 487
 488 #if 0
 489
 490 static int FreeRTOS_set_current_thread(struct rtos *rtos, threadid_t thread_id)
 491 {
 492         return 0;
 493 }
 494
 495 static int FreeRTOS_get_thread_ascii_info(struct rtos *rtos, threadid_t thread_id, char **info)
 496 {
 497         int retval;
 498         const struct FreeRTOS_params *param;
 499
 500         if (rtos == NULL)
 501                 return -1;
 502
 503         if (thread_id == 0)
 504                 return -2;
 505
 506         if (rtos->rtos_specific_params == NULL)
 507                 return -3;
 508
 509         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 510
 511 #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 512         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 513
 514         /* Read the thread name */
 515         retval = target_read_buffer(rtos->target,
 516                         thread_id + param->thread_name_offset,
 517                         FREERTOS_THREAD_NAME_STR_SIZE,
 518                         (uint8_t *)&tmp_str);
 519         if (retval != ERROR_OK) {
 520                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 521                 return retval;
 522         }
 523         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 524
 525         if (tmp_str[0] == '\x00')
 526                 strcpy(tmp_str, "No Name");
 527
 528         *info = malloc(strlen(tmp_str)+1);
 529         strcpy(*info, tmp_str);
 530         return 0;
 531 }
 532
 533 #endif
 534
 535 static int FreeRTOS_detect_rtos(struct target *target)
 536 {
 537         if ((target->rtos->symbols != NULL) &&
 538                         (target->rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address != 0)) {
 539                 /* looks like FreeRTOS */
 540                 return 1;
 541         }
 542         return 0;
 543 }
 544
 545 static int FreeRTOS_create(struct target *target)
 546 {
 547         int i = 0;
 548         while ((i < FREERTOS_NUM_PARAMS) &&
 549                         (0 != strcmp(FreeRTOS_params_list[i].target_name, target->type->name))) {
 550                 i++;
 551         }
 552         if (i >= FREERTOS_NUM_PARAMS) {
 553                 LOG_ERROR("Could not find target in FreeRTOS compatibility list");
 554                 return -1;
 555         }
 556
 557         target->rtos->rtos_specific_params = (void *) &FreeRTOS_params_list[i];
 558         return 0;
 559 }