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