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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 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 int 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, char **hex_reg_list);
 106 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
 107
 108 struct rtos_type FreeRTOS_rtos = {
 109         .name = "FreeRTOS",
 110
 111         .detect_rtos = FreeRTOS_detect_rtos,
 112         .create = FreeRTOS_create,
 113         .update_threads = FreeRTOS_update_threads,
 114         .get_thread_reg_list = FreeRTOS_get_thread_reg_list,
 115         .get_symbol_list_to_lookup = FreeRTOS_get_symbol_list_to_lookup,
 116 };
 117
 118 enum FreeRTOS_symbol_values {
 119         FreeRTOS_VAL_pxCurrentTCB = 0,
 120         FreeRTOS_VAL_pxReadyTasksLists = 1,
 121         FreeRTOS_VAL_xDelayedTaskList1 = 2,
 122         FreeRTOS_VAL_xDelayedTaskList2 = 3,
 123         FreeRTOS_VAL_pxDelayedTaskList = 4,
 124         FreeRTOS_VAL_pxOverflowDelayedTaskList = 5,
 125         FreeRTOS_VAL_xPendingReadyList = 6,
 126         FreeRTOS_VAL_xTasksWaitingTermination = 7,
 127         FreeRTOS_VAL_xSuspendedTaskList = 8,
 128         FreeRTOS_VAL_uxCurrentNumberOfTasks = 9,
 129         FreeRTOS_VAL_uxTopUsedPriority = 10,
 130 };
 131
 132 struct symbols {
 133         const char *name;
 134         bool optional;
 135 };
 136
 137 static const struct symbols FreeRTOS_symbol_list[] = {
 138         { "pxCurrentTCB", false },
 139         { "pxReadyTasksLists", false },
 140         { "xDelayedTaskList1", false },
 141         { "xDelayedTaskList2", false },
 142         { "pxDelayedTaskList", false },
 143         { "pxOverflowDelayedTaskList", false },
 144         { "xPendingReadyList", false },
 145         { "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
 146         { "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
 147         { "uxCurrentNumberOfTasks", false },
 148         { "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
 149         { NULL, false }
 150 };
 151
 152 /* TODO: */
 153 /* this is not safe for little endian yet */
 154 /* may be problems reading if sizes are not 32 bit long integers. */
 155 /* test mallocs for failure */
 156
 157 static int FreeRTOS_update_threads(struct rtos *rtos)
 158 {
 159         int i = 0;
 160         int retval;
 161         int tasks_found = 0;
 162         const struct FreeRTOS_params *param;
 163
 164         if (rtos->rtos_specific_params == NULL)
 165                 return -1;
 166
 167         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 168
 169         if (rtos->symbols == NULL) {
 170                 LOG_ERROR("No symbols for FreeRTOS");
 171                 return -3;
 172         }
 173
 174         if (rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address == 0) {
 175                 LOG_ERROR("Don't have the number of threads in FreeRTOS");
 176                 return -2;
 177         }
 178
 179         int thread_list_size = 0;
 180         retval = target_read_buffer(rtos->target,
 181                         rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 182                         param->thread_count_width,
 183                         (uint8_t *)&thread_list_size);
 184         LOG_DEBUG("FreeRTOS: Read uxCurrentNumberOfTasks at 0x%" PRIx64 ", value %d\r\n",
 185                                                                                 rtos->symbols[FreeRTOS_VAL_uxCurrentNumberOfTasks].address,
 186                                                                                 thread_list_size);
 187
 188         if (retval != ERROR_OK) {
 189                 LOG_ERROR("Could not read FreeRTOS thread count from target");
 190                 return retval;
 191         }
 192
 193         /* wipe out previous thread details if any */
 194         rtos_free_threadlist(rtos);
 195
 196         /* read the current thread */
 197         retval = target_read_buffer(rtos->target,
 198                         rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 199                         param->pointer_width,
 200                         (uint8_t *)&rtos->current_thread);
 201         if (retval != ERROR_OK) {
 202                 LOG_ERROR("Error reading current thread in FreeRTOS thread list");
 203                 return retval;
 204         }
 205         LOG_DEBUG("FreeRTOS: Read pxCurrentTCB at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 206                                                                                 rtos->symbols[FreeRTOS_VAL_pxCurrentTCB].address,
 207                                                                                 rtos->current_thread);
 208
 209         if ((thread_list_size  == 0) || (rtos->current_thread == 0)) {
 210                 /* Either : No RTOS threads - there is always at least the current execution though */
 211                 /* OR     : No current thread - all threads suspended - show the current execution
 212                  * of idling */
 213                 char tmp_str[] = "Current Execution";
 214                 thread_list_size++;
 215                 tasks_found++;
 216                 rtos->thread_details = malloc(
 217                                 sizeof(struct thread_detail) * thread_list_size);
 218                 if (!rtos->thread_details) {
 219                         LOG_ERROR("Error allocating memory for %d threads", thread_list_size);
 220                         return ERROR_FAIL;
 221                 }
 222                 rtos->thread_details->threadid = 1;
 223                 rtos->thread_details->exists = true;
 224                 rtos->thread_details->display_str = NULL;
 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].display_str = NULL;
 364                         rtos->thread_details[tasks_found].exists = true;
 365
 366                         if (rtos->thread_details[tasks_found].threadid == rtos->current_thread) {
 367                                 char running_str[] = "Running";
 368                                 rtos->thread_details[tasks_found].extra_info_str = malloc(
 369                                                 sizeof(running_str));
 370                                 strcpy(rtos->thread_details[tasks_found].extra_info_str,
 371                                         running_str);
 372                         } else
 373                                 rtos->thread_details[tasks_found].extra_info_str = NULL;
 374
 375                         tasks_found++;
 376                         list_thread_count--;
 377
 378                         prev_list_elem_ptr = list_elem_ptr;
 379                         list_elem_ptr = 0;
 380                         retval = target_read_buffer(rtos->target,
 381                                         prev_list_elem_ptr + param->list_elem_next_offset,
 382                                         param->pointer_width,
 383                                         (uint8_t *)&list_elem_ptr);
 384                         if (retval != ERROR_OK) {
 385                                 LOG_ERROR("Error reading next thread item location in FreeRTOS thread list");
 386                                 free(list_of_lists);
 387                                 return retval;
 388                         }
 389                         LOG_DEBUG("FreeRTOS: Read next thread location at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 390                                                                                 prev_list_elem_ptr + param->list_elem_next_offset,
 391                                                                                 list_elem_ptr);
 392                 }
 393         }
 394
 395         free(list_of_lists);
 396         rtos->thread_count = tasks_found;
 397         return 0;
 398 }
 399
 400 static int FreeRTOS_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list)
 401 {
 402         int retval;
 403         const struct FreeRTOS_params *param;
 404         int64_t stack_ptr = 0;
 405
 406         *hex_reg_list = NULL;
 407         if (rtos == NULL)
 408                 return -1;
 409
 410         if (thread_id == 0)
 411                 return -2;
 412
 413         if (rtos->rtos_specific_params == NULL)
 414                 return -1;
 415
 416         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 417
 418         /* Read the stack pointer */
 419         retval = target_read_buffer(rtos->target,
 420                         thread_id + param->thread_stack_offset,
 421                         param->pointer_width,
 422                         (uint8_t *)&stack_ptr);
 423         if (retval != ERROR_OK) {
 424                 LOG_ERROR("Error reading stack frame from FreeRTOS thread");
 425                 return retval;
 426         }
 427         LOG_DEBUG("FreeRTOS: Read stack pointer at 0x%" PRIx64 ", value 0x%" PRIx64 "\r\n",
 428                                                                                 thread_id + param->thread_stack_offset,
 429                                                                                 stack_ptr);
 430
 431         /* Check for armv7m with *enabled* FPU, i.e. a Cortex-M4F */
 432         int cm4_fpu_enabled = 0;
 433         struct armv7m_common *armv7m_target = target_to_armv7m(rtos->target);
 434         if (is_armv7m(armv7m_target)) {
 435                 if (armv7m_target->fp_feature == FPv4_SP) {
 436                         /* Found ARM v7m target which includes a FPU */
 437                         uint32_t cpacr;
 438
 439                         retval = target_read_u32(rtos->target, FPU_CPACR, &cpacr);
 440                         if (retval != ERROR_OK) {
 441                                 LOG_ERROR("Could not read CPACR register to check FPU state");
 442                                 return -1;
 443                         }
 444
 445                         /* Check if CP10 and CP11 are set to full access. */
 446                         if (cpacr & 0x00F00000) {
 447                                 /* Found target with enabled FPU */
 448                                 cm4_fpu_enabled = 1;
 449                         }
 450                 }
 451         }
 452
 453         if (cm4_fpu_enabled == 1) {
 454                 /* Read the LR to decide between stacking with or without FPU */
 455                 uint32_t LR_svc = 0;
 456                 retval = target_read_buffer(rtos->target,
 457                                 stack_ptr + 0x20,
 458                                 param->pointer_width,
 459                                 (uint8_t *)&LR_svc);
 460                 if (retval != ERROR_OK) {
 461                         LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
 462                         return retval;
 463                 }
 464                 if ((LR_svc & 0x10) == 0)
 465                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f_fpu, stack_ptr, hex_reg_list);
 466                 else
 467                         return rtos_generic_stack_read(rtos->target, param->stacking_info_cm4f, stack_ptr, hex_reg_list);
 468         } else
 469                 return rtos_generic_stack_read(rtos->target, param->stacking_info_cm3, stack_ptr, hex_reg_list);
 470 }
 471
 472 static int FreeRTOS_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
 473 {
 474         unsigned int i;
 475         *symbol_list = calloc(
 476                         ARRAY_SIZE(FreeRTOS_symbol_list), sizeof(symbol_table_elem_t));
 477
 478         for (i = 0; i < ARRAY_SIZE(FreeRTOS_symbol_list); i++) {
 479                 (*symbol_list)[i].symbol_name = FreeRTOS_symbol_list[i].name;
 480                 (*symbol_list)[i].optional = FreeRTOS_symbol_list[i].optional;
 481         }
 482
 483         return 0;
 484 }
 485
 486 #if 0
 487
 488 static int FreeRTOS_set_current_thread(struct rtos *rtos, threadid_t thread_id)
 489 {
 490         return 0;
 491 }
 492
 493 static int FreeRTOS_get_thread_ascii_info(struct rtos *rtos, threadid_t thread_id, char **info)
 494 {
 495         int retval;
 496         const struct FreeRTOS_params *param;
 497
 498         if (rtos == NULL)
 499                 return -1;
 500
 501         if (thread_id == 0)
 502                 return -2;
 503
 504         if (rtos->rtos_specific_params == NULL)
 505                 return -3;
 506
 507         param = (const struct FreeRTOS_params *) rtos->rtos_specific_params;
 508
 509 #define FREERTOS_THREAD_NAME_STR_SIZE (200)
 510         char tmp_str[FREERTOS_THREAD_NAME_STR_SIZE];
 511
 512         /* Read the thread name */
 513         retval = target_read_buffer(rtos->target,
 514                         thread_id + param->thread_name_offset,
 515                         FREERTOS_THREAD_NAME_STR_SIZE,
 516                         (uint8_t *)&tmp_str);
 517         if (retval != ERROR_OK) {
 518                 LOG_ERROR("Error reading first thread item location in FreeRTOS thread list");
 519                 return retval;
 520         }
 521         tmp_str[FREERTOS_THREAD_NAME_STR_SIZE-1] = '\x00';
 522
 523         if (tmp_str[0] == '\x00')
 524                 strcpy(tmp_str, "No Name");
 525
 526         *info = malloc(strlen(tmp_str)+1);
 527         strcpy(*info, tmp_str);
 528         return 0;
 529 }
 530
 531 #endif
 532
 533 static int FreeRTOS_detect_rtos(struct target *target)
 534 {
 535         if ((target->rtos->symbols != NULL) &&
 536                         (target->rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address != 0)) {
 537                 /* looks like FreeRTOS */
 538                 return 1;
 539         }
 540         return 0;
 541 }
 542
 543 static int FreeRTOS_create(struct target *target)
 544 {
 545         int i = 0;
 546         while ((i < FREERTOS_NUM_PARAMS) &&
 547                         (0 != strcmp(FreeRTOS_params_list[i].target_name, target->type->name))) {
 548                 i++;
 549         }
 550         if (i >= FREERTOS_NUM_PARAMS) {
 551                 LOG_ERROR("Could not find target in FreeRTOS compatibility list");
 552                 return -1;
 553         }
 554
 555         target->rtos->rtos_specific_params = (void *) &FreeRTOS_params_list[i];
 556         return 0;
 557 }