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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, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25
  26 #include "rtos.h"
  27 #include "target/target.h"
  28 #include "helper/log.h"
  29 #include "server/gdb_server.h"
  30
  31
  32 static int64_t current_threadid = -1;
  33
  34 static void hex_to_str( char* dst, char * hex_src );
  35 static int str_to_hex( char* hex_dst, char* src );
  36
  37
  38 /* RTOSs */
  39 extern struct rtos_type FreeRTOS_rtos;
  40 extern struct rtos_type ThreadX_rtos;
  41 extern struct rtos_type eCos_rtos;
  42
  43 static struct rtos_type *rtos_types[] =
  44 {
  45         &ThreadX_rtos,
  46         &FreeRTOS_rtos,
  47         &eCos_rtos,
  48         NULL
  49 };
  50
  51
  52 int rtos_create(Jim_GetOptInfo *goi, struct target * target)
  53 {
  54         int x;
  55         char *cp;
  56
  57         if (! goi->isconfigure) {
  58                 if (goi->argc != 0) {
  59                         if (goi->argc != 0) {
  60                                 Jim_WrongNumArgs(goi->interp,
  61                                                 goi->argc, goi->argv,
  62                                                 "NO PARAMS");
  63                                 return JIM_ERR;
  64                         }
  65
  66                         Jim_SetResultString(goi->interp,
  67                                         target_type_name(target), -1);
  68                 }
  69         }
  70
  71         if (target->rtos) {
  72                 free((void *)(target->rtos));
  73         }
  74 //                      e = Jim_GetOpt_String(goi, &cp, NULL);
  75 //                      target->rtos = strdup(cp);
  76
  77         Jim_GetOpt_String(goi, &cp, NULL);
  78         /* now does target type exist */
  79
  80         if ( 0 == strcmp( cp, "auto") )
  81         {
  82                 // auto detection of RTOS
  83                 target->rtos_auto_detect = true;
  84                 x = 0;
  85         }
  86         else
  87         {
  88
  89                 for (x = 0 ; rtos_types[x] ; x++) {
  90                         if (0 == strcmp(cp, rtos_types[x]->name)) {
  91                                 /* found */
  92                                 break;
  93                         }
  94                 }
  95                 if (rtos_types[x] == NULL) {
  96                         Jim_SetResultFormatted(goi->interp, "Unknown rtos type %s, try one of ", cp);
  97                         for (x = 0 ; rtos_types[x] ; x++) {
  98                                 if (rtos_types[x + 1]) {
  99                                         Jim_AppendStrings(goi->interp,
 100                                                                            Jim_GetResult(goi->interp),
 101                                                                            rtos_types[x]->name,
 102                                                                            ", ", NULL);
 103                                 } else {
 104                                         Jim_AppendStrings(goi->interp,
 105                                                                            Jim_GetResult(goi->interp),
 106                                                                            " or ",
 107                                                                            rtos_types[x]->name,NULL);
 108                                 }
 109                         }
 110                         return JIM_ERR;
 111                 }
 112         }
 113         /* Create it */
 114         target->rtos = calloc(1,sizeof(struct rtos));
 115         target->rtos->type = rtos_types[x];
 116         target->rtos->current_thread = 0;
 117         target->rtos->symbols = NULL;
 118         target->rtos->target = target;
 119
 120         if ( 0 != strcmp( cp, "auto") )
 121         {
 122                 target->rtos->type->create( target );
 123         }
 124
 125         return JIM_OK;
 126 }
 127
 128
 129
 130
 131 int gdb_thread_packet(struct connection *connection, char *packet, int packet_size)
 132 {
 133         struct target *target = get_target_from_connection(connection);
 134
 135         if (strstr(packet, "qP"))
 136         {
 137                 #define TAG_THREADID 1          /* Echo the thread identifier */
 138                 #define TAG_EXISTS 2            /* Is this process defined enough to
 139                                                    fetch registers and its stack */
 140                 #define TAG_DISPLAY 4           /* A short thing maybe to put on a window */
 141                 #define TAG_THREADNAME 8        /* string, maps 1-to-1 with a thread is */
 142                 #define TAG_MOREDISPLAY 16      /* Whatever the kernel wants to say about */
 143
 144                         // TODO: need to scanf the mode variable (or it with the tags), and the threadid
 145
 146                 unsigned long mode;
 147                 threadid_t threadid = 0;
 148                 struct thread_detail* detail;
 149                 sscanf(packet, "qP%8lx%16" SCNx64, &mode, &threadid);
 150
 151
 152                 int found = -1;
 153
 154                 if ((target->rtos != NULL) && (target->rtos->thread_details
 155                                 != NULL)) {
 156                         int thread_num;
 157                         for (thread_num = 0; thread_num
 158                                         < target->rtos->thread_count; thread_num++) {
 159                                 if (target->rtos->thread_details[thread_num].threadid
 160                                                 == threadid) {
 161                                         if (target->rtos->thread_details[thread_num].exists) {
 162                                                 found = thread_num;
 163                                         }
 164                                 }
 165                         }
 166                 }
 167                 if (found == -1) {
 168                         gdb_put_packet(connection, "E01", 3); // thread not found
 169                         return ERROR_OK;
 170                 }
 171
 172                 detail = &target->rtos->thread_details[found];
 173
 174                 if ( detail->display_str != NULL )
 175                 {
 176                         mode &= TAG_DISPLAY;
 177                 }
 178                 if ( detail->thread_name_str != NULL )
 179                 {
 180                         mode &= TAG_THREADNAME;
 181                 }
 182                 if ( detail->extra_info_str != NULL )
 183                 {
 184                         mode &= TAG_MOREDISPLAY;
 185                 }
 186
 187
 188                 mode &= TAG_THREADID | TAG_EXISTS;
 189
 190                 char thread_str[1000];
 191
 192                 sprintf(thread_str, "%08lx", mode);
 193                 sprintf(thread_str, "%016" PRIx64, threadid);
 194
 195
 196                 if (mode & TAG_THREADID) {
 197                         sprintf(thread_str, "%08" PRIx32 "10%016" PRIx64, TAG_THREADID, threadid);
 198                 }
 199                 if (mode & TAG_EXISTS) {
 200                         sprintf(thread_str, "%08" PRIx32 "08%08" PRIx32, TAG_EXISTS, (detail->exists==true)?1:0);
 201                 }
 202                 if (mode & TAG_DISPLAY) {
 203                         sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_DISPLAY, (unsigned char)strlen(detail->display_str), detail->display_str );
 204                 }
 205                 if (mode & TAG_MOREDISPLAY) {
 206                         sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_MOREDISPLAY, (unsigned char)strlen(detail->extra_info_str), detail->extra_info_str );
 207                 }
 208                 if (mode & TAG_THREADNAME) {
 209                         sprintf(thread_str, "%08" PRIx32 "%02x%s", TAG_THREADNAME, (unsigned char)strlen(detail->thread_name_str), detail->thread_name_str );
 210                 }
 211
 212                 //gdb_put_packet(connection, tmpstr, sizeof(tmpstr)-1);
 213                 gdb_put_packet(connection, thread_str, strlen(thread_str));
 214
 215                 //                      gdb_put_packet(connection, "", 0);
 216                 //              gdb_put_packet(connection, "OK", 2); // all threads alive
 217                 return ERROR_OK;
 218         }
 219         else if (strstr(packet, "qThreadExtraInfo,"))
 220         {
 221                 if ((target->rtos != NULL) && (target->rtos->thread_details != NULL) && (target->rtos->thread_count != 0))
 222                 {
 223                         threadid_t threadid = 0;
 224                         int found = -1;
 225                         sscanf(packet, "qThreadExtraInfo,%" SCNx64, &threadid );
 226
 227                         if ((target->rtos != NULL) && (target->rtos->thread_details
 228                                         != NULL)) {
 229                                 int thread_num;
 230                                 for (thread_num = 0; thread_num
 231                                                 < target->rtos->thread_count; thread_num++) {
 232                                         if (target->rtos->thread_details[thread_num].threadid
 233                                                         == threadid) {
 234                                                 if (target->rtos->thread_details[thread_num].exists) {
 235                                                         found = thread_num;
 236                                                 }
 237                                         }
 238                                 }
 239                         }
 240                         if (found == -1) {
 241                                 gdb_put_packet(connection, "E01", 3); // thread not found
 242                                 return ERROR_OK;
 243                         }
 244
 245                         struct thread_detail* detail = &target->rtos->thread_details[found];
 246
 247                         int str_size = 0;
 248                         if ( detail->display_str != NULL )
 249                         {
 250                                 str_size += strlen(detail->display_str);
 251                         }
 252                         if ( detail->thread_name_str != NULL )
 253                         {
 254                                 str_size += strlen(detail->thread_name_str);
 255                         }
 256                         if ( detail->extra_info_str != NULL )
 257                         {
 258                                 str_size += strlen(detail->extra_info_str);
 259                         }
 260
 261                         char * tmp_str = (char*) malloc( str_size + 7 );
 262                         char*  tmp_str_ptr = tmp_str;
 263
 264                         if ( detail->display_str != NULL )
 265                         {
 266                                 tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->display_str );
 267                         }
 268                         if ( detail->thread_name_str != NULL )
 269                         {
 270                                 if ( tmp_str_ptr != tmp_str )
 271                                 {
 272                                         tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
 273                                 }
 274                                 tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->thread_name_str );
 275                         }
 276                         if ( detail->extra_info_str != NULL )
 277                         {
 278                                 if ( tmp_str_ptr != tmp_str )
 279                                 {
 280                                         tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
 281                                 }
 282                                 tmp_str_ptr += sprintf( tmp_str_ptr, " : %s", detail->extra_info_str );
 283                         }
 284
 285                         char * hex_str = (char*) malloc( strlen(tmp_str)*2 +1 );
 286                         str_to_hex( hex_str, tmp_str );
 287
 288                         gdb_put_packet(connection, hex_str, strlen(hex_str));
 289                         free(hex_str);
 290                         free(tmp_str);
 291                         return ERROR_OK;
 292
 293                 }
 294                 gdb_put_packet(connection, "", 0);
 295                 return ERROR_OK;
 296         }
 297         else if (strstr(packet, "qSymbol"))
 298         {
 299                 if ( target->rtos != NULL )
 300                 {
 301                         int next_symbol_num = -1;
 302                         if (target->rtos->symbols == NULL)
 303                         {
 304                                 target->rtos->type->get_symbol_list_to_lookup( &target->rtos->symbols );
 305                         }
 306                         if (0 == strcmp( "qSymbol::", packet ) )
 307                         {
 308                                 // first query -
 309                                 next_symbol_num = 0;
 310                         }
 311                         else
 312                         {
 313                                 int64_t value = 0;
 314                                 char * hex_name_str = malloc( strlen(packet));
 315                                 char * name_str;
 316                                 int symbol_num;
 317
 318                                 char* found = strstr( packet, "qSymbol::" );
 319                                 if (0 == found )
 320                                 {
 321                                         sscanf(packet, "qSymbol:%" SCNx64 ":%s", &value, hex_name_str);
 322                                 }
 323                                 else
 324                                 {
 325                                         // No value returned by GDB - symbol was not found
 326                                         sscanf(packet, "qSymbol::%s", hex_name_str);
 327                                 }
 328                                 name_str = (char*) malloc( 1+ strlen(hex_name_str) / 2 );
 329
 330                                 hex_to_str( name_str, hex_name_str );
 331
 332
 333                                 symbol_num = 0;
 334                                 while ( ( target->rtos->symbols[ symbol_num ].symbol_name != NULL ) && ( 0 != strcmp( target->rtos->symbols[ symbol_num ].symbol_name, name_str ) ) )
 335                                 {
 336                                         symbol_num++;
 337                                 }
 338
 339
 340                                 if ( target->rtos->symbols[ symbol_num ].symbol_name == NULL )
 341                                 {
 342                                         LOG_OUTPUT("ERROR: unknown symbol\r\n");
 343                                         gdb_put_packet(connection, "OK", 2);
 344                                         return ERROR_OK;
 345                                 }
 346
 347                                 target->rtos->symbols[ symbol_num ].address = value;
 348
 349                                 next_symbol_num = symbol_num+1;
 350                                 free( hex_name_str );
 351                                 free( name_str );
 352
 353                         }
 354
 355                         int symbols_done = 0;
 356                         if ( target->rtos->symbols[ next_symbol_num ].symbol_name == NULL )
 357                         {
 358                                 if ( ( target->rtos_auto_detect == false ) ||
 359                                          ( 1 == target->rtos->type->detect_rtos( target ) ) )
 360                                 {
 361                                         // Found correct RTOS or not autodetecting
 362                                         if ( target->rtos_auto_detect == true )
 363                                         {
 364                                                 LOG_OUTPUT( "Auto-detected RTOS: %s\r\n",target->rtos->type->name );
 365                                         }
 366                                         symbols_done = 1;
 367                                 }
 368                                 else
 369                                 {
 370                                         // Auto detecting RTOS and currently not found
 371                                         if( 1 != rtos_try_next( target ) )
 372                                         {
 373                                                 // No more RTOS's to try
 374                                                 symbols_done = 1;
 375                                         }
 376                                         else
 377                                         {
 378                                                 next_symbol_num = 0;
 379                                                 target->rtos->type->get_symbol_list_to_lookup( &target->rtos->symbols );
 380                                         }
 381
 382                                 }
 383                         }
 384
 385
 386                         if ( symbols_done == 1 )
 387                         {
 388                                 target->rtos_auto_detect = false;
 389                                 target->rtos->type->create( target );
 390                                 target->rtos->type->update_threads(target->rtos);
 391                                 // No more symbols needed
 392                                 gdb_put_packet(connection, "OK", 2);
 393                                 return ERROR_OK;
 394
 395                         }
 396                         else
 397                         {
 398                                 char* symname = target->rtos->symbols[ next_symbol_num ].symbol_name;
 399                                 char qsymstr[] = "qSymbol:";
 400                                 char * opstring = (char*)malloc(sizeof(qsymstr)+strlen(symname)*2+1);
 401                                 char * posptr = opstring;
 402                                 posptr += sprintf( posptr, "%s", qsymstr );
 403                                 str_to_hex( posptr, symname );
 404                                 gdb_put_packet(connection, opstring, strlen(opstring));
 405                                 free(opstring);
 406                                 return ERROR_OK;
 407                         }
 408
 409                 }
 410                 gdb_put_packet(connection, "OK", 2);
 411                 return ERROR_OK;
 412         }
 413         else if (strstr(packet, "qfThreadInfo"))
 414         {
 415                 int i;
 416                 if ( ( target->rtos != NULL ) && ( target->rtos->thread_count != 0 ) )
 417                 {
 418
 419                         char* out_str = (char*) malloc(17 * target->rtos->thread_count + 5);
 420                         char* tmp_str = out_str;
 421                         tmp_str += sprintf(tmp_str, "m");
 422                         for (i = 0; i < target->rtos->thread_count; i++) {
 423                                 if (i != 0) {
 424                                         tmp_str += sprintf(tmp_str, ",");
 425                                 }
 426                                 tmp_str += sprintf(tmp_str, "%016" PRIx64,
 427                                                 target->rtos->thread_details[i].threadid);
 428                         }
 429                         tmp_str[0] = 0;
 430                         gdb_put_packet(connection, out_str, strlen(out_str));
 431                 }
 432                 else
 433                 {
 434                         gdb_put_packet(connection, "", 0);
 435                 }
 436
 437                 return ERROR_OK;
 438         }
 439         else if (strstr(packet, "qsThreadInfo"))
 440         {
 441                 gdb_put_packet(connection, "l", 1);
 442                 return ERROR_OK;
 443         }
 444         else if (strstr(packet, "qAttached"))
 445         {
 446                 gdb_put_packet(connection, "1", 1);
 447                 return ERROR_OK;
 448         }
 449         else if (strstr(packet, "qOffsets"))
 450         {
 451                 char offsets[] = "Text=0;Data=0;Bss=0";
 452                 gdb_put_packet(connection, offsets, sizeof(offsets)-1);
 453                 return ERROR_OK;
 454         }
 455         else if (strstr(packet, "qC"))
 456         {
 457                 if( target->rtos!=NULL )
 458                 {
 459                         char buffer[15];
 460                         int size;
 461                         size = snprintf(buffer, 15, "QC%08X", (int)target->rtos->current_thread);
 462                         gdb_put_packet(connection, buffer, size);
 463                 }
 464                 else
 465                 {
 466                         gdb_put_packet(connection, "QC0", 3);
 467                 }
 468                 return ERROR_OK;
 469         }
 470         else if ( packet[0] == 'T' ) // Is thread alive?
 471         {
 472                 threadid_t threadid;
 473                 int found = -1;
 474                 sscanf(packet, "T%" SCNx64, &threadid);
 475                 if ((target->rtos != NULL) && (target->rtos->thread_details
 476                                 != NULL)) {
 477                         int thread_num;
 478                         for (thread_num = 0; thread_num
 479                                         < target->rtos->thread_count; thread_num++) {
 480                                 if (target->rtos->thread_details[thread_num].threadid
 481                                                 == threadid) {
 482                                         if (target->rtos->thread_details[thread_num].exists) {
 483                                                 found = thread_num;
 484                                         }
 485                                 }
 486                         }
 487                 }
 488                 if (found != -1) {
 489                         gdb_put_packet(connection, "OK", 2); // thread alive
 490                 } else {
 491                         gdb_put_packet(connection, "E01", 3); // thread not found
 492                 }
 493                 return ERROR_OK;
 494         }
 495         else if ( packet[0] == 'H') // Set current thread ( 'c' for step and continue, 'g' for all other operations )
 496         {
 497                 if (packet[1] == 'g')
 498                 {
 499                         sscanf(packet, "Hg%16" SCNx64, &current_threadid);
 500                 }
 501                 gdb_put_packet(connection, "OK", 2);
 502                 return ERROR_OK;
 503         }
 504
 505         return GDB_THREAD_PACKET_NOT_CONSUMED;
 506 }
 507
 508 int rtos_get_gdb_reg_list(struct connection *connection, struct reg **reg_list[], int *reg_list_size)
 509 {
 510         struct target *target = get_target_from_connection(connection);
 511
 512         if ( ( target->rtos != NULL ) &&
 513                  ( current_threadid != -1 ) &&
 514                  ( current_threadid != 0 ) &&
 515                  ( current_threadid != target->rtos->current_thread ) )
 516         {
 517                 char * hex_reg_list;
 518                 target->rtos->type->get_thread_reg_list( target->rtos, current_threadid, &hex_reg_list );
 519
 520                 if ( hex_reg_list != NULL )
 521                 {
 522                         gdb_put_packet(connection, hex_reg_list, strlen(hex_reg_list));
 523                         free(hex_reg_list);
 524                         return ERROR_OK;
 525                 }
 526         }
 527         return ERROR_FAIL;
 528 }
 529
 530
 531
 532 int rtos_generic_stack_read( struct target * target, const struct rtos_register_stacking* stacking, int64_t stack_ptr, char ** hex_reg_list )
 533 {
 534         int list_size = 0;
 535         char * tmp_str_ptr;
 536         int64_t new_stack_ptr;
 537         int i;
 538         int retval;
 539
 540         if ( stack_ptr == 0)
 541         {
 542                 LOG_OUTPUT("Error: null stack pointer in thread\r\n");
 543                 return -5;
 544         }
 545         // Read the stack
 546         uint8_t * stack_data = (uint8_t*) malloc( stacking->stack_registers_size );
 547         uint32_t address = stack_ptr;
 548
 549         if ( stacking->stack_growth_direction == 1 )
 550         {
 551                 address -=  stacking->stack_registers_size;
 552         }
 553         retval = target_read_buffer( target, address, stacking->stack_registers_size, stack_data);
 554         if ( retval != ERROR_OK )
 555         {
 556                 LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
 557                 return retval;
 558         }
 559 /*
 560         LOG_OUTPUT("Stack Data :");
 561         for(i = 0; i < stacking->stack_registers_size; i++ )
 562         {
 563                 LOG_OUTPUT("%02X",stack_data[i]);
 564         }
 565         LOG_OUTPUT("\r\n");
 566 */
 567         for( i = 0; i < stacking->num_output_registers; i++ )
 568         {
 569                 list_size += stacking->register_offsets[i].width_bits/8;
 570         }
 571         *hex_reg_list = (char*)malloc( list_size*2 +1 );
 572         tmp_str_ptr = *hex_reg_list;
 573         new_stack_ptr = stack_ptr - stacking->stack_growth_direction * stacking->stack_registers_size;
 574         for( i = 0; i < stacking->num_output_registers; i++ )
 575         {
 576                 int j;
 577                 for ( j = 0; j < stacking->register_offsets[i].width_bits/8; j++ )
 578                 {
 579                         if ( stacking->register_offsets[i].offset == -1 )
 580                         {
 581                                 tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", 0 );
 582                         }
 583                         else if ( stacking->register_offsets[i].offset == -2 )
 584                         {
 585                                 tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", ((uint8_t*)&new_stack_ptr)[j] );
 586                         }
 587                         else
 588                         {
 589                                 tmp_str_ptr += sprintf( tmp_str_ptr,"%02x", stack_data[ stacking->register_offsets[i].offset + j ] );
 590                         }
 591                 }
 592         }
 593 //      LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list);
 594         return ERROR_OK;
 595 }
 596
 597 int rtos_try_next( struct target * target )
 598 {
 599         int x;
 600
 601         if ( target->rtos == NULL )
 602         {
 603                 return -1;
 604         }
 605
 606         for (x = 0 ; rtos_types[x] ; x++) {
 607                 if (target->rtos->type == rtos_types[x] ) {
 608                         /* found */
 609                         if ( rtos_types[x+1] != NULL )
 610                         {
 611                                 target->rtos->type = rtos_types[x+1];
 612                                 if ( target->rtos->symbols != NULL )
 613                                 {
 614                                         free( target->rtos->symbols );
 615                                 }
 616                                 return 1;
 617                         }
 618                         else
 619                         {
 620                                 // No more rtos types
 621                                 return 0;
 622                         }
 623
 624                 }
 625         }
 626         return 0;
 627
 628 }
 629
 630 static void hex_to_str( char* dst, char * hex_src )
 631 {
 632         int src_pos = 0;
 633         int dst_pos = 0;
 634
 635         while ( hex_src[src_pos] != '\x00' )
 636         {
 637                 char hex_char = hex_src[src_pos];
 638                 char hex_digit_val = (hex_char>='a')?hex_char-'a'+10:(hex_char>='A')?hex_char-'A'+10:hex_char-'0';
 639                 if ( 0 == (src_pos & 0x01) )
 640                 {
 641                         dst[dst_pos] = hex_digit_val;
 642                         dst[dst_pos+1] = 0;
 643                 }
 644                 else
 645                 {
 646                         ((unsigned char*)dst)[dst_pos] <<= 4;
 647                         ((unsigned char*)dst)[dst_pos] += hex_digit_val;
 648                         dst_pos++;
 649                 }
 650                 src_pos++;
 651         }
 652
 653 }
 654
 655 static int str_to_hex( char* hex_dst, char* src )
 656 {
 657         char * posptr = hex_dst;
 658         unsigned i;
 659         for( i = 0; i < strlen(src); i++)
 660         {
 661                 posptr += sprintf( posptr, "%02x", (unsigned char)src[i] );
 662         }
 663         return (posptr-hex_dst);
 664 }
 665
 666
 667 int rtos_update_threads( struct target* target )
 668 {
 669         if ((target->rtos != NULL) && (target->rtos->type != NULL))
 670         {
 671                 target->rtos->type->update_threads(target->rtos);
 672         }
 673         return ERROR_OK;
 674 }