git.sur5r.net Git - openocd/blob - src/target/target.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   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 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26
  27 #include "log.h"
  28 #include "configuration.h"
  29 #include "binarybuffer.h"
  30 #include "jtag.h"
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38 #include <errno.h>
  39
  40 #include <sys/time.h>
  41 #include <time.h>
  42
  43 #include <time_support.h>
  44
  45 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  46
  47 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50
  51 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54
  55 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71
  72 /* targets
  73  */
  74 extern target_type_t arm7tdmi_target;
  75 extern target_type_t arm720t_target;
  76 extern target_type_t arm9tdmi_target;
  77 extern target_type_t arm920t_target;
  78 extern target_type_t arm966e_target;
  79
  80 target_type_t *target_types[] =
  81 {
  82         &arm7tdmi_target,
  83         &arm9tdmi_target,
  84         &arm920t_target,
  85         &arm720t_target,
  86         &arm966e_target,
  87         NULL,
  88 };
  89
  90 target_t *targets = NULL;
  91 target_event_callback_t *target_event_callbacks = NULL;
  92 target_timer_callback_t *target_timer_callbacks = NULL;
  93
  94 char *target_state_strings[] =
  95 {
  96         "unknown",
  97         "running",
  98         "halted",
  99         "reset",
 100         "debug_running",
 101 };
 102
 103 char *target_debug_reason_strings[] =
 104 {
 105         "debug request", "breakpoint", "watchpoint",
 106         "watchpoint and breakpoint", "single step",
 107         "target not halted"
 108 };
 109
 110 char *target_endianess_strings[] =
 111 {
 112         "big endian",
 113         "little endian",
 114 };
 115
 116 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 117
 118 static int target_continous_poll = 1;
 119
 120 /* read a u32 from a buffer in target memory endianness */
 121 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 122 {
 123         if (target->endianness == TARGET_LITTLE_ENDIAN)
 124                 return le_to_h_u32(buffer);
 125         else
 126                 return be_to_h_u32(buffer);
 127 }
 128
 129 /* read a u16 from a buffer in target memory endianness */
 130 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 131 {
 132         if (target->endianness == TARGET_LITTLE_ENDIAN)
 133                 return le_to_h_u16(buffer);
 134         else
 135                 return be_to_h_u16(buffer);
 136 }
 137
 138 /* write a u32 to a buffer in target memory endianness */
 139 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 140 {
 141         if (target->endianness == TARGET_LITTLE_ENDIAN)
 142                 h_u32_to_le(buffer, value);
 143         else
 144                 h_u32_to_be(buffer, value);
 145 }
 146
 147 /* write a u16 to a buffer in target memory endianness */
 148 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 149 {
 150         if (target->endianness == TARGET_LITTLE_ENDIAN)
 151                 h_u16_to_le(buffer, value);
 152         else
 153                 h_u16_to_be(buffer, value);
 154 }
 155
 156 /* returns a pointer to the n-th configured target */
 157 target_t* get_target_by_num(int num)
 158 {
 159         target_t *target = targets;
 160         int i = 0;
 161
 162         while (target)
 163         {
 164                 if (num == i)
 165                         return target;
 166                 target = target->next;
 167                 i++;
 168         }
 169
 170         return NULL;
 171 }
 172
 173 int get_num_by_target(target_t *query_target)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (target == query_target)
 181                         return i;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return -1;
 187 }
 188
 189 target_t* get_current_target(command_context_t *cmd_ctx)
 190 {
 191         target_t *target = get_target_by_num(cmd_ctx->current_target);
 192
 193         if (target == NULL)
 194         {
 195                 ERROR("BUG: current_target out of bounds");
 196                 exit(-1);
 197         }
 198
 199         return target;
 200 }
 201
 202 /* Process target initialization, when target entered debug out of reset
 203  * the handler is unregistered at the end of this function, so it's only called once
 204  */
 205 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 206 {
 207         FILE *script;
 208         struct command_context_s *cmd_ctx = priv;
 209
 210         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 211         {
 212                 script = fopen(target->reset_script, "r");
 213                 if (!script)
 214                 {
 215                         ERROR("couldn't open script file %s", target->reset_script);
 216                                 return ERROR_OK;
 217                 }
 218
 219                 INFO("executing reset script '%s'", target->reset_script);
 220                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 221                 fclose(script);
 222
 223                 jtag_execute_queue();
 224
 225                 target_unregister_event_callback(target_init_handler, priv);
 226         }
 227
 228         return ERROR_OK;
 229 }
 230
 231 int target_run_and_halt_handler(void *priv)
 232 {
 233         target_t *target = priv;
 234
 235         target->type->halt(target);
 236
 237         return ERROR_OK;
 238 }
 239
 240 int target_process_reset(struct command_context_s *cmd_ctx)
 241 {
 242         int retval = ERROR_OK;
 243         target_t *target;
 244
 245         target = targets;
 246         while (target)
 247         {
 248                 target->type->assert_reset(target);
 249                 target = target->next;
 250         }
 251         jtag_execute_queue();
 252
 253         /* request target halt if necessary, and schedule further action */
 254         target = targets;
 255         while (target)
 256         {
 257                 switch (target->reset_mode)
 258                 {
 259                         case RESET_RUN:
 260                                 /* nothing to do if target just wants to be run */
 261                                 break;
 262                         case RESET_RUN_AND_HALT:
 263                                 /* schedule halt */
 264                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 265                                 break;
 266                         case RESET_RUN_AND_INIT:
 267                                 /* schedule halt */
 268                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 269                                 target_register_event_callback(target_init_handler, cmd_ctx);
 270                                 break;
 271                         case RESET_HALT:
 272                                 target->type->halt(target);
 273                                 break;
 274                         case RESET_INIT:
 275                                 target->type->halt(target);
 276                                 target_register_event_callback(target_init_handler, cmd_ctx);
 277                                 break;
 278                         default:
 279                                 ERROR("BUG: unknown target->reset_mode");
 280                 }
 281                 target = target->next;
 282         }
 283
 284         target = targets;
 285         while (target)
 286         {
 287                 target->type->deassert_reset(target);
 288                 target = target->next;
 289         }
 290         jtag_execute_queue();
 291
 292         return retval;
 293 }
 294
 295 int target_init(struct command_context_s *cmd_ctx)
 296 {
 297         target_t *target = targets;
 298
 299         while (target)
 300         {
 301                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 302                 {
 303                         ERROR("target '%s' init failed", target->type->name);
 304                         exit(-1);
 305                 }
 306                 target = target->next;
 307         }
 308
 309         if (targets)
 310         {
 311                 target_register_user_commands(cmd_ctx);
 312                 target_register_timer_callback(handle_target, 100, 1, NULL);
 313         }
 314
 315         if (startup_mode == DAEMON_RESET)
 316                 target_process_reset(cmd_ctx);
 317
 318         return ERROR_OK;
 319 }
 320
 321 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 322 {
 323         target_event_callback_t **callbacks_p = &target_event_callbacks;
 324
 325         if (callback == NULL)
 326         {
 327                 return ERROR_INVALID_ARGUMENTS;
 328         }
 329
 330         if (*callbacks_p)
 331         {
 332                 while ((*callbacks_p)->next)
 333                         callbacks_p = &((*callbacks_p)->next);
 334                 callbacks_p = &((*callbacks_p)->next);
 335         }
 336
 337         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 338         (*callbacks_p)->callback = callback;
 339         (*callbacks_p)->priv = priv;
 340         (*callbacks_p)->next = NULL;
 341
 342         return ERROR_OK;
 343 }
 344
 345 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 346 {
 347         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 348         struct timeval now;
 349
 350         if (callback == NULL)
 351         {
 352                 return ERROR_INVALID_ARGUMENTS;
 353         }
 354
 355         if (*callbacks_p)
 356         {
 357                 while ((*callbacks_p)->next)
 358                         callbacks_p = &((*callbacks_p)->next);
 359                 callbacks_p = &((*callbacks_p)->next);
 360         }
 361
 362         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 363         (*callbacks_p)->callback = callback;
 364         (*callbacks_p)->periodic = periodic;
 365         (*callbacks_p)->time_ms = time_ms;
 366
 367         gettimeofday(&now, NULL);
 368         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 369         time_ms -= (time_ms % 1000);
 370         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 371         if ((*callbacks_p)->when.tv_usec > 1000000)
 372         {
 373                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 374                 (*callbacks_p)->when.tv_sec += 1;
 375         }
 376
 377         (*callbacks_p)->priv = priv;
 378         (*callbacks_p)->next = NULL;
 379
 380         return ERROR_OK;
 381 }
 382
 383 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 384 {
 385         target_event_callback_t **p = &target_event_callbacks;
 386         target_event_callback_t *c = target_event_callbacks;
 387
 388         if (callback == NULL)
 389         {
 390                 return ERROR_INVALID_ARGUMENTS;
 391         }
 392
 393         while (c)
 394         {
 395                 target_event_callback_t *next = c->next;
 396                 if ((c->callback == callback) && (c->priv == priv))
 397                 {
 398                         *p = next;
 399                         free(c);
 400                         return ERROR_OK;
 401                 }
 402                 else
 403                         p = &(c->next);
 404                 c = next;
 405         }
 406
 407         return ERROR_OK;
 408 }
 409
 410 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 411 {
 412         target_timer_callback_t **p = &target_timer_callbacks;
 413         target_timer_callback_t *c = target_timer_callbacks;
 414
 415         if (callback == NULL)
 416         {
 417                 return ERROR_INVALID_ARGUMENTS;
 418         }
 419
 420         while (c)
 421         {
 422                 target_timer_callback_t *next = c->next;
 423                 if ((c->callback == callback) && (c->priv == priv))
 424                 {
 425                         *p = next;
 426                         free(c);
 427                         return ERROR_OK;
 428                 }
 429                 else
 430                         p = &(c->next);
 431                 c = next;
 432         }
 433
 434         return ERROR_OK;
 435 }
 436
 437 int target_call_event_callbacks(target_t *target, enum target_event event)
 438 {
 439         target_event_callback_t *callback = target_event_callbacks;
 440         target_event_callback_t *next_callback;
 441
 442         DEBUG("target event %i", event);
 443
 444         while (callback)
 445         {
 446                 next_callback = callback->next;
 447                 callback->callback(target, event, callback->priv);
 448                 callback = next_callback;
 449         }
 450
 451         return ERROR_OK;
 452 }
 453
 454 int target_call_timer_callbacks()
 455 {
 456         target_timer_callback_t *callback = target_timer_callbacks;
 457         target_timer_callback_t *next_callback;
 458         struct timeval now;
 459
 460         gettimeofday(&now, NULL);
 461
 462         while (callback)
 463         {
 464                 next_callback = callback->next;
 465
 466                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 467                         || (now.tv_sec > callback->when.tv_sec))
 468                 {
 469                         callback->callback(callback->priv);
 470                         if (callback->periodic)
 471                         {
 472                                 int time_ms = callback->time_ms;
 473                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 474                                 time_ms -= (time_ms % 1000);
 475                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 476                                 if (callback->when.tv_usec > 1000000)
 477                                 {
 478                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 479                                         callback->when.tv_sec += 1;
 480                                 }
 481                         }
 482                         else
 483                                 target_unregister_timer_callback(callback->callback, callback->priv);
 484                 }
 485
 486                 callback = next_callback;
 487         }
 488
 489         return ERROR_OK;
 490 }
 491
 492 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 493 {
 494         working_area_t *c = target->working_areas;
 495         working_area_t *new_wa = NULL;
 496
 497         /* only allocate multiples of 4 byte */
 498         if (size % 4)
 499         {
 500                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 501                 size = CEIL(size, 4);
 502         }
 503
 504         /* see if there's already a matching working area */
 505         while (c)
 506         {
 507                 if ((c->free) && (c->size == size))
 508                 {
 509                         new_wa = c;
 510                         break;
 511                 }
 512                 c = c->next;
 513         }
 514
 515         /* if not, allocate a new one */
 516         if (!new_wa)
 517         {
 518                 working_area_t **p = &target->working_areas;
 519                 u32 first_free = target->working_area;
 520                 u32 free_size = target->working_area_size;
 521
 522                 DEBUG("allocating new working area");
 523
 524                 c = target->working_areas;
 525                 while (c)
 526                 {
 527                         first_free += c->size;
 528                         free_size -= c->size;
 529                         p = &c->next;
 530                         c = c->next;
 531                 }
 532
 533                 if (free_size < size)
 534                 {
 535                         WARNING("not enough working area available");
 536                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 537                 }
 538
 539                 new_wa = malloc(sizeof(working_area_t));
 540                 new_wa->next = NULL;
 541                 new_wa->size = size;
 542                 new_wa->address = first_free;
 543
 544                 if (target->backup_working_area)
 545                 {
 546                         new_wa->backup = malloc(new_wa->size);
 547                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 548                 }
 549                 else
 550                 {
 551                         new_wa->backup = NULL;
 552                 }
 553
 554                 /* put new entry in list */
 555                 *p = new_wa;
 556         }
 557
 558         /* mark as used, and return the new (reused) area */
 559         new_wa->free = 0;
 560         *area = new_wa;
 561
 562         /* user pointer */
 563         new_wa->user = area;
 564
 565         return ERROR_OK;
 566 }
 567
 568 int target_free_working_area(struct target_s *target, working_area_t *area)
 569 {
 570         if (area->free)
 571                 return ERROR_OK;
 572
 573         if (target->backup_working_area)
 574                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 575
 576         area->free = 1;
 577
 578         /* mark user pointer invalid */
 579         *area->user = NULL;
 580         area->user = NULL;
 581
 582         return ERROR_OK;
 583 }
 584
 585 int target_free_all_working_areas(struct target_s *target)
 586 {
 587         working_area_t *c = target->working_areas;
 588
 589         while (c)
 590         {
 591                 working_area_t *next = c->next;
 592                 target_free_working_area(target, c);
 593
 594                 if (c->backup)
 595                         free(c->backup);
 596
 597                 free(c);
 598
 599                 c = next;
 600         }
 601
 602         target->working_areas = NULL;
 603
 604         return ERROR_OK;
 605 }
 606
 607 int target_register_commands(struct command_context_s *cmd_ctx)
 608 {
 609         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 610         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 611         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 612         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 613         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 614         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 615
 616         return ERROR_OK;
 617 }
 618
 619 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 620 {
 621         int retval;
 622
 623         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 624
 625         /* handle writes of less than 4 byte */
 626         if (size < 4)
 627         {
 628                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 629                         return retval;
 630         }
 631
 632         /* handle unaligned head bytes */
 633         if (address % 4)
 634         {
 635                 int unaligned = 4 - (address % 4);
 636
 637                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 638                         return retval;
 639
 640                 buffer += unaligned;
 641                 address += unaligned;
 642                 size -= unaligned;
 643         }
 644
 645         /* handle aligned words */
 646         if (size >= 4)
 647         {
 648                 int aligned = size - (size % 4);
 649
 650                 /* use bulk writes above a certain limit. This may have to be changed */
 651                 if (aligned > 128)
 652                 {
 653                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 654                                 return retval;
 655                 }
 656                 else
 657                 {
 658                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 659                                 return retval;
 660                 }
 661
 662                 buffer += aligned;
 663                 address += aligned;
 664                 size -= aligned;
 665         }
 666
 667         /* handle tail writes of less than 4 bytes */
 668         if (size > 0)
 669         {
 670                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 671                         return retval;
 672         }
 673
 674         return ERROR_OK;
 675 }
 676
 677 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 678 {
 679         int retval;
 680
 681         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 682
 683         /* handle reads of less than 4 byte */
 684         if (size < 4)
 685         {
 686                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 687                         return retval;
 688         }
 689
 690         /* handle unaligned head bytes */
 691         if (address % 4)
 692         {
 693                 int unaligned = 4 - (address % 4);
 694
 695                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 696                         return retval;
 697
 698                 buffer += unaligned;
 699                 address += unaligned;
 700                 size -= unaligned;
 701         }
 702
 703         /* handle aligned words */
 704         if (size >= 4)
 705         {
 706                 int aligned = size - (size % 4);
 707
 708                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 709                         return retval;
 710
 711                 buffer += aligned;
 712                 address += aligned;
 713                 size -= aligned;
 714         }
 715
 716         /* handle tail writes of less than 4 bytes */
 717         if (size > 0)
 718         {
 719                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 720                         return retval;
 721         }
 722
 723         return ERROR_OK;
 724 }
 725
 726 int target_register_user_commands(struct command_context_s *cmd_ctx)
 727 {
 728         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 729         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 730         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt");
 731         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 732         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 733         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 734         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 735         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 736
 737         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 738         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 739         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 740
 741         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 742         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 743         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 744
 745         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 746         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 747         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 748         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 749
 750         register_command(cmd_ctx,  NULL, "load_binary", handle_load_binary_command, COMMAND_EXEC, "load binary <file> <address>");
 751         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_binary_command, COMMAND_EXEC, "dump binary <file> <address> <size>");
 752
 753         return ERROR_OK;
 754 }
 755
 756 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 757 {
 758         target_t *target = targets;
 759         int count = 0;
 760
 761         if (argc == 1)
 762         {
 763                 int num = strtoul(args[0], NULL, 0);
 764
 765                 while (target)
 766                 {
 767                         count++;
 768                         target = target->next;
 769                 }
 770
 771                 if (num < count)
 772                         cmd_ctx->current_target = num;
 773                 else
 774                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 775
 776                 return ERROR_OK;
 777         }
 778
 779         while (target)
 780         {
 781                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 782                 target = target->next;
 783         }
 784
 785         return ERROR_OK;
 786 }
 787
 788 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 789 {
 790         int i;
 791         int found = 0;
 792
 793         if (argc < 3)
 794         {
 795                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 796                 exit(-1);
 797         }
 798
 799         /* search for the specified target */
 800         if (args[0] && (args[0][0] != 0))
 801         {
 802                 for (i = 0; target_types[i]; i++)
 803                 {
 804                         if (strcmp(args[0], target_types[i]->name) == 0)
 805                         {
 806                                 target_t **last_target_p = &targets;
 807
 808                                 /* register target specific commands */
 809                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 810                                 {
 811                                         ERROR("couldn't register '%s' commands", args[0]);
 812                                         exit(-1);
 813                                 }
 814
 815                                 if (*last_target_p)
 816                                 {
 817                                         while ((*last_target_p)->next)
 818                                                 last_target_p = &((*last_target_p)->next);
 819                                         last_target_p = &((*last_target_p)->next);
 820                                 }
 821
 822                                 *last_target_p = malloc(sizeof(target_t));
 823
 824                                 (*last_target_p)->type = target_types[i];
 825
 826                                 if (strcmp(args[1], "big") == 0)
 827                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 828                                 else if (strcmp(args[1], "little") == 0)
 829                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 830                                 else
 831                                 {
 832                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 833                                         exit(-1);
 834                                 }
 835
 836                                 /* what to do on a target reset */
 837                                 if (strcmp(args[2], "reset_halt") == 0)
 838                                         (*last_target_p)->reset_mode = RESET_HALT;
 839                                 else if (strcmp(args[2], "reset_run") == 0)
 840                                         (*last_target_p)->reset_mode = RESET_RUN;
 841                                 else if (strcmp(args[2], "reset_init") == 0)
 842                                         (*last_target_p)->reset_mode = RESET_INIT;
 843                                 else if (strcmp(args[2], "run_and_halt") == 0)
 844                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 845                                 else if (strcmp(args[2], "run_and_init") == 0)
 846                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 847                                 else
 848                                 {
 849                                         ERROR("unknown target startup mode %s", args[2]);
 850                                         exit(-1);
 851                                 }
 852                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 853
 854                                 (*last_target_p)->reset_script = NULL;
 855                                 (*last_target_p)->post_halt_script = NULL;
 856                                 (*last_target_p)->pre_resume_script = NULL;
 857
 858                                 (*last_target_p)->working_area = 0x0;
 859                                 (*last_target_p)->working_area_size = 0x0;
 860                                 (*last_target_p)->working_areas = NULL;
 861                                 (*last_target_p)->backup_working_area = 0;
 862
 863                                 (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 864                                 (*last_target_p)->state = TARGET_UNKNOWN;
 865                                 (*last_target_p)->reg_cache = NULL;
 866                                 (*last_target_p)->breakpoints = NULL;
 867                                 (*last_target_p)->watchpoints = NULL;
 868                                 (*last_target_p)->next = NULL;
 869                                 (*last_target_p)->arch_info = NULL;
 870
 871                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 872
 873                                 found = 1;
 874                                 break;
 875                         }
 876                 }
 877         }
 878
 879         /* no matching target found */
 880         if (!found)
 881         {
 882                 ERROR("target '%s' not found", args[0]);
 883                 exit(-1);
 884         }
 885
 886         return ERROR_OK;
 887 }
 888
 889 /* usage: target_script <target#> <event> <script_file> */
 890 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 891 {
 892         target_t *target = NULL;
 893
 894         if (argc < 3)
 895         {
 896                 ERROR("incomplete target_script command");
 897                 exit(-1);
 898         }
 899
 900         target = get_target_by_num(strtoul(args[0], NULL, 0));
 901
 902         if (!target)
 903         {
 904                 ERROR("target number '%s' not defined", args[0]);
 905                 exit(-1);
 906         }
 907
 908         if (strcmp(args[1], "reset") == 0)
 909         {
 910                 if (target->reset_script)
 911                         free(target->reset_script);
 912                 target->reset_script = strdup(args[2]);
 913         }
 914         else if (strcmp(args[1], "post_halt") == 0)
 915         {
 916                 if (target->post_halt_script)
 917                         free(target->post_halt_script);
 918                 target->post_halt_script = strdup(args[2]);
 919         }
 920         else if (strcmp(args[1], "pre_resume") == 0)
 921         {
 922                 if (target->pre_resume_script)
 923                         free(target->pre_resume_script);
 924                 target->pre_resume_script = strdup(args[2]);
 925         }
 926         else
 927         {
 928                 ERROR("unknown event type: '%s", args[1]);
 929                 exit(-1);
 930         }
 931
 932         return ERROR_OK;
 933 }
 934
 935 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 936 {
 937         target_t *target = NULL;
 938
 939         if (argc < 2)
 940         {
 941                 ERROR("incomplete run_and_halt_time command");
 942                 exit(-1);
 943         }
 944
 945         target = get_target_by_num(strtoul(args[0], NULL, 0));
 946
 947         if (!target)
 948         {
 949                 ERROR("target number '%s' not defined", args[0]);
 950                 exit(-1);
 951         }
 952
 953         target->run_and_halt_time = strtoul(args[1], NULL, 0);
 954
 955         return ERROR_OK;
 956 }
 957
 958 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 959 {
 960         target_t *target = NULL;
 961
 962         if (argc < 4)
 963         {
 964                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
 965                 exit(-1);
 966         }
 967
 968         target = get_target_by_num(strtoul(args[0], NULL, 0));
 969
 970         if (!target)
 971         {
 972                 ERROR("target number '%s' not defined", args[0]);
 973                 exit(-1);
 974         }
 975
 976         target->working_area = strtoul(args[1], NULL, 0);
 977         target->working_area_size = strtoul(args[2], NULL, 0);
 978
 979         if (strcmp(args[3], "backup") == 0)
 980         {
 981                 target->backup_working_area = 1;
 982         }
 983         else if (strcmp(args[3], "nobackup") == 0)
 984         {
 985                 target->backup_working_area = 0;
 986         }
 987         else
 988         {
 989                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
 990                 exit(-1);
 991         }
 992
 993         return ERROR_OK;
 994 }
 995
 996
 997 /* process target state changes */
 998 int handle_target(void *priv)
 999 {
1000         int retval;
1001         target_t *target = targets;
1002
1003         while (target)
1004         {
1005                 /* only poll if target isn't already halted */
1006                 if (target->state != TARGET_HALTED)
1007                 {
1008                         if (target_continous_poll)
1009                                 if ((retval = target->type->poll(target)) < 0)
1010                                 {
1011                                         ERROR("couldn't poll target, exiting");
1012                                         exit(-1);
1013                                 }
1014                 }
1015
1016                 target = target->next;
1017         }
1018
1019         return ERROR_OK;
1020 }
1021
1022 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1023 {
1024         target_t *target;
1025         reg_t *reg = NULL;
1026         int count = 0;
1027         char *value;
1028
1029         DEBUG("");
1030
1031         target = get_current_target(cmd_ctx);
1032
1033         /* list all available registers for the current target */
1034         if (argc == 0)
1035         {
1036                 reg_cache_t *cache = target->reg_cache;
1037
1038                 count = 0;
1039                 while(cache)
1040                 {
1041                         int i;
1042                         for (i = 0; i < cache->num_regs; i++)
1043                         {
1044                                 value = buf_to_char(cache->reg_list[i].value, cache->reg_list[i].size);
1045                                 command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", count++, cache->reg_list[i].name, cache->reg_list[i].size, value, cache->reg_list[i].dirty, cache->reg_list[i].valid);
1046                                 free(value);
1047                         }
1048                         cache = cache->next;
1049                 }
1050
1051                 return ERROR_OK;
1052         }
1053
1054         /* access a single register by its ordinal number */
1055         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1056         {
1057                 int num = strtoul(args[0], NULL, 0);
1058                 reg_cache_t *cache = target->reg_cache;
1059
1060                 count = 0;
1061                 while(cache)
1062                 {
1063                         int i;
1064                         for (i = 0; i < cache->num_regs; i++)
1065                         {
1066                                 if (count++ == num)
1067                                 {
1068                                         reg = &cache->reg_list[i];
1069                                         break;
1070                                 }
1071                         }
1072                         if (reg)
1073                                 break;
1074                         cache = cache->next;
1075                 }
1076
1077                 if (!reg)
1078                 {
1079                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1080                         return ERROR_OK;
1081                 }
1082         } else /* access a single register by its name */
1083         {
1084                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1085
1086                 if (!reg)
1087                 {
1088                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1089                         return ERROR_OK;
1090                 }
1091         }
1092
1093         /* display a register */
1094         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1095         {
1096                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1097                         reg->valid = 0;
1098
1099                 if (reg->valid == 0)
1100                 {
1101                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1102                         if (arch_type == NULL)
1103                         {
1104                                 ERROR("BUG: encountered unregistered arch type");
1105                                 return ERROR_OK;
1106                         }
1107                         arch_type->get(reg);
1108                 }
1109                 value = buf_to_char(reg->value, reg->size);
1110                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1111                 free(value);
1112                 return ERROR_OK;
1113         }
1114
1115         /* set register value */
1116         if (argc == 2)
1117         {
1118                 u32 new_value = strtoul(args[1], NULL, 0);
1119                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1120                 if (arch_type == NULL)
1121                 {
1122                         ERROR("BUG: encountered unregistered arch type");
1123                         return ERROR_OK;
1124                 }
1125
1126                 arch_type->set(reg, new_value);
1127                 value = buf_to_char(reg->value, reg->size);
1128                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1129                 free(value);
1130
1131                 return ERROR_OK;
1132         }
1133
1134         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1135
1136         return ERROR_OK;
1137 }
1138
1139 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1140 {
1141         target_t *target = get_current_target(cmd_ctx);
1142         char buffer[512];
1143
1144         if (argc == 0)
1145         {
1146                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1147                 if (target->state == TARGET_HALTED)
1148                 {
1149                         target->type->arch_state(target, buffer, 512);
1150                         buffer[511] = 0;
1151                         command_print(cmd_ctx, "%s", buffer);
1152                 }
1153         }
1154         else
1155         {
1156                 if (strcmp(args[0], "on") == 0)
1157                 {
1158                         target_continous_poll = 1;
1159                 }
1160                 else if (strcmp(args[0], "off") == 0)
1161                 {
1162                         target_continous_poll = 0;
1163                 }
1164         }
1165
1166
1167         return ERROR_OK;
1168 }
1169
1170 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1171 {
1172         target_t *target = get_current_target(cmd_ctx);
1173         struct timeval timeout, now;
1174
1175         gettimeofday(&timeout, NULL);
1176         timeval_add_time(&timeout, 5, 0);
1177
1178         command_print(cmd_ctx, "waiting for target halted...");
1179
1180         while(target->type->poll(target))
1181         {
1182                 if (target->state == TARGET_HALTED)
1183                 {
1184                         command_print(cmd_ctx, "target halted");
1185                         break;
1186                 }
1187                 target_call_timer_callbacks();
1188
1189                 gettimeofday(&now, NULL);
1190                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1191                 {
1192                         command_print(cmd_ctx, "timed out while waiting for target halt");
1193                         ERROR("timed out while waiting for target halt");
1194                         break;
1195                 }
1196         }
1197
1198         return ERROR_OK;
1199 }
1200
1201 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1202 {
1203         int retval;
1204         target_t *target = get_current_target(cmd_ctx);
1205
1206         DEBUG("");
1207
1208         command_print(cmd_ctx, "requesting target halt...");
1209
1210         if ((retval = target->type->halt(target)) != ERROR_OK)
1211         {
1212                 switch (retval)
1213                 {
1214                         case ERROR_TARGET_ALREADY_HALTED:
1215                                 command_print(cmd_ctx, "target already halted");
1216                                 break;
1217                         case ERROR_TARGET_TIMEOUT:
1218                                 command_print(cmd_ctx, "target timed out... shutting down");
1219                                 exit(-1);
1220                         default:
1221                                 command_print(cmd_ctx, "unknown error... shutting down");
1222                                 exit(-1);
1223                 }
1224         }
1225
1226         return ERROR_OK;
1227
1228 }
1229
1230 /* what to do on daemon startup */
1231 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1232 {
1233         if (argc == 1)
1234         {
1235                 if (strcmp(args[0], "attach") == 0)
1236                 {
1237                         startup_mode = DAEMON_ATTACH;
1238                         return ERROR_OK;
1239                 }
1240                 else if (strcmp(args[0], "reset") == 0)
1241                 {
1242                         startup_mode = DAEMON_RESET;
1243                         return ERROR_OK;
1244                 }
1245         }
1246
1247         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1248         return ERROR_OK;
1249
1250 }
1251
1252 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1253 {
1254         target_t *target = get_current_target(cmd_ctx);
1255         int retval;
1256
1257         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1258
1259         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1260         {
1261                 switch (retval)
1262                 {
1263                         case ERROR_TARGET_TIMEOUT:
1264                                 command_print(cmd_ctx, "target timed out... shutting down");
1265                                 exit(-1);
1266                         default:
1267                                 command_print(cmd_ctx, "unknown error... shutting down");
1268                                 exit(-1);
1269                 }
1270         }
1271
1272         return ERROR_OK;
1273 }
1274
1275 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1276 {
1277         target_t *target = get_current_target(cmd_ctx);
1278         enum target_reset_mode reset_mode = RESET_RUN;
1279
1280         DEBUG("");
1281
1282         if (argc >= 1)
1283         {
1284                 if (strcmp("run", args[0]) == 0)
1285                         reset_mode = RESET_RUN;
1286                 else if (strcmp("halt", args[0]) == 0)
1287                         reset_mode = RESET_HALT;
1288                 else if (strcmp("init", args[0]) == 0)
1289                         reset_mode = RESET_INIT;
1290                 else if (strcmp("run_and_halt", args[0]) == 0)
1291                 {
1292                         reset_mode = RESET_RUN_AND_HALT;
1293                         if (argc >= 2)
1294                         {
1295                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1296                         }
1297                 }
1298                 else if (strcmp("run_and_init", args[0]) == 0)
1299                 {
1300                         reset_mode = RESET_RUN_AND_INIT;
1301                         if (argc >= 2)
1302                         {
1303                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1304                         }
1305                 }
1306                 else
1307                 {
1308                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1309                         return ERROR_OK;
1310                 }
1311                 target->reset_mode = reset_mode;
1312         }
1313
1314         target_process_reset(cmd_ctx);
1315
1316         return ERROR_OK;
1317 }
1318
1319 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1320 {
1321         int retval;
1322         target_t *target = get_current_target(cmd_ctx);
1323
1324         DEBUG("");
1325
1326         if (argc == 0)
1327                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1328         else if (argc == 1)
1329                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1330         else
1331         {
1332                 command_print(cmd_ctx, "usage: resume [address]");
1333                 return ERROR_OK;
1334         }
1335
1336         if (retval != ERROR_OK)
1337         {
1338                 switch (retval)
1339                 {
1340                         case ERROR_TARGET_NOT_HALTED:
1341                                 command_print(cmd_ctx, "target not halted");
1342                                 break;
1343                         default:
1344                                 command_print(cmd_ctx, "unknown error... shutting down");
1345                                 exit(-1);
1346                 }
1347         }
1348
1349         return ERROR_OK;
1350 }
1351
1352 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1353 {
1354         target_t *target = get_current_target(cmd_ctx);
1355
1356         DEBUG("");
1357
1358         if (argc == 0)
1359                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1360
1361         if (argc == 1)
1362                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1363
1364         return ERROR_OK;
1365 }
1366
1367 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1368 {
1369         int count = 1;
1370         int size = 4;
1371         u32 address = 0;
1372         int i;
1373
1374         char output[128];
1375         int output_len;
1376
1377         int retval;
1378
1379         u8 *buffer;
1380         target_t *target = get_current_target(cmd_ctx);
1381
1382         if (argc < 1)
1383                 return ERROR_OK;
1384
1385         if (argc == 2)
1386                 count = strtoul(args[1], NULL, 0);
1387
1388         address = strtoul(args[0], NULL, 0);
1389
1390
1391         switch (cmd[2])
1392         {
1393                 case 'w':
1394                         size = 4;
1395                         break;
1396                 case 'h':
1397                         size = 2;
1398                         break;
1399                 case 'b':
1400                         size = 1;
1401                         break;
1402                 default:
1403                         return ERROR_OK;
1404         }
1405
1406         buffer = calloc(count, size);
1407         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1408         {
1409                 switch (retval)
1410                 {
1411                         case ERROR_TARGET_UNALIGNED_ACCESS:
1412                                 command_print(cmd_ctx, "error: address not aligned");
1413                                 break;
1414                         case ERROR_TARGET_NOT_HALTED:
1415                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1416                                 break;
1417                         case ERROR_TARGET_DATA_ABORT:
1418                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1419                                 break;
1420                         default:
1421                                 command_print(cmd_ctx, "error: unknown error");
1422                                 break;
1423                 }
1424         }
1425
1426         output_len = 0;
1427
1428         for (i = 0; i < count; i++)
1429         {
1430                 if (i%8 == 0)
1431                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1432
1433                 switch (size)
1434                 {
1435                         case 4:
1436                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", ((u32*)buffer)[i]);
1437                                 break;
1438                         case 2:
1439                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", ((u16*)buffer)[i]);
1440                                 break;
1441                         case 1:
1442                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", ((u8*)buffer)[i]);
1443                                 break;
1444                 }
1445
1446                 if ((i%8 == 7) || (i == count - 1))
1447                 {
1448                         command_print(cmd_ctx, output);
1449                         output_len = 0;
1450                 }
1451         }
1452
1453         free(buffer);
1454
1455         return ERROR_OK;
1456 }
1457
1458 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1459 {
1460         u32 address = 0;
1461         u32 value = 0;
1462         int retval;
1463         target_t *target = get_current_target(cmd_ctx);
1464
1465         if (argc < 2)
1466                 return ERROR_OK;
1467
1468         address = strtoul(args[0], NULL, 0);
1469         value = strtoul(args[1], NULL, 0);
1470
1471         switch (cmd[2])
1472         {
1473                 case 'w':
1474                         retval = target->type->write_memory(target, address, 4, 1, (u8*)&value);
1475                         break;
1476                 case 'h':
1477                         retval = target->type->write_memory(target, address, 2, 1, (u8*)&value);
1478                         break;
1479                 case 'b':
1480                         retval = target->type->write_memory(target, address, 1, 1, (u8*)&value);
1481                         break;
1482                 default:
1483                         return ERROR_OK;
1484         }
1485
1486         switch (retval)
1487         {
1488                 case ERROR_TARGET_UNALIGNED_ACCESS:
1489                         command_print(cmd_ctx, "error: address not aligned");
1490                         break;
1491                 case ERROR_TARGET_DATA_ABORT:
1492                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1493                         break;
1494                 case ERROR_TARGET_NOT_HALTED:
1495                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1496                         break;
1497                 case ERROR_OK:
1498                         break;
1499                 default:
1500                         command_print(cmd_ctx, "error: unknown error");
1501                         break;
1502         }
1503
1504         return ERROR_OK;
1505
1506 }
1507
1508 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1509 {
1510         FILE *binary;
1511         u32 address;
1512         struct stat binary_stat;
1513         u32 binary_size;
1514
1515         u8 *buffer;
1516         u32 buf_cnt;
1517
1518         struct timeval start, end, duration;
1519
1520         target_t *target = get_current_target(cmd_ctx);
1521
1522         if (argc != 2)
1523         {
1524                 command_print(cmd_ctx, "usage: load_binary <filename> <address>");
1525                 return ERROR_OK;
1526         }
1527
1528         address = strtoul(args[1], NULL, 0);
1529
1530         if (stat(args[0], &binary_stat) == -1)
1531         {
1532                 ERROR("couldn't stat() %s: %s", args[0], strerror(errno));
1533                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1534                 return ERROR_OK;
1535         }
1536
1537         if (!(binary = fopen(args[0], "rb")))
1538         {
1539                 ERROR("couldn't open %s: %s", args[0], strerror(errno));
1540                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1541                 return ERROR_OK;
1542         }
1543
1544         buffer = malloc(128 * 1024);
1545
1546         gettimeofday(&start, NULL);
1547
1548         binary_size = binary_stat.st_size;
1549         while (binary_size > 0)
1550         {
1551                 buf_cnt = fread(buffer, 1, 128*1024, binary);
1552                 target_write_buffer(target, address, buf_cnt, buffer);
1553                 address += buf_cnt;
1554                 binary_size -= buf_cnt;
1555         }
1556
1557         gettimeofday(&end, NULL);
1558
1559         free(buffer);
1560
1561         timeval_subtract(&duration, &end, &start);
1562         command_print(cmd_ctx, "downloaded %lli byte in %is %ius", (long long) binary_stat.st_size, duration.tv_sec, duration.tv_usec);
1563
1564         fclose(binary);
1565
1566         return ERROR_OK;
1567
1568 }
1569
1570 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1571 {
1572         FILE *binary;
1573         u32 address;
1574         u32 size;
1575         u8 buffer[560];
1576
1577         target_t *target = get_current_target(cmd_ctx);
1578
1579         if (argc != 3)
1580         {
1581                 command_print(cmd_ctx, "usage: dump_binary <filename> <address> <size>");
1582                 return ERROR_OK;
1583         }
1584
1585         address = strtoul(args[1], NULL, 0);
1586         size = strtoul(args[2], NULL, 0);
1587
1588         if (!(binary = fopen(args[0], "wb")))
1589         {
1590                 ERROR("couldn't open %s for writing: %s", args[0], strerror(errno));
1591                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1592                 return ERROR_OK;
1593         }
1594
1595         if ((address & 3) || (size & 3))
1596         {
1597                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1598                 return ERROR_OK;
1599         }
1600
1601         while (size > 0)
1602         {
1603                 u32 this_run_size = (size > 560) ? 560 : size;
1604                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1605                 fwrite(buffer, 1, this_run_size, binary);
1606                 size -= this_run_size;
1607                 address += this_run_size;
1608         }
1609
1610         fclose(binary);
1611
1612         return ERROR_OK;
1613
1614 }
1615
1616 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1617 {
1618         int retval;
1619         target_t *target = get_current_target(cmd_ctx);
1620
1621         if (argc == 0)
1622         {
1623                 breakpoint_t *breakpoint = target->breakpoints;
1624
1625                 while (breakpoint)
1626                 {
1627                         if (breakpoint->type == BKPT_SOFT)
1628                         {
1629                                 char* buf = buf_to_char(breakpoint->orig_instr, breakpoint->length);
1630                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1631                                 free(buf);
1632                         }
1633                         else
1634                         {
1635                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1636                         }
1637                         breakpoint = breakpoint->next;
1638                 }
1639         }
1640         else if (argc >= 2)
1641         {
1642                 int hw = BKPT_SOFT;
1643                 u32 length = 0;
1644
1645                 length = strtoul(args[1], NULL, 0);
1646
1647                 if (argc >= 3)
1648                         if (strcmp(args[2], "hw") == 0)
1649                                 hw = BKPT_HARD;
1650
1651                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1652                 {
1653                         switch (retval)
1654                         {
1655                                 case ERROR_TARGET_NOT_HALTED:
1656                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1657                                         break;
1658                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1659                                         command_print(cmd_ctx, "no more breakpoints available");
1660                                         break;
1661                                 default:
1662                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1663                                         break;
1664                         }
1665                 }
1666         }
1667
1668         return ERROR_OK;
1669 }
1670
1671 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1672 {
1673         target_t *target = get_current_target(cmd_ctx);
1674
1675         if (argc > 0)
1676                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1677
1678         return ERROR_OK;
1679 }
1680
1681 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1682 {
1683         target_t *target = get_current_target(cmd_ctx);
1684
1685         if (argc == 0)
1686         {
1687                 watchpoint_t *watchpoint = target->watchpoints;
1688
1689                 while (watchpoint)
1690                 {
1691                         command_print(cmd_ctx, "address: 0x%8.8x, mask: 0x%8.8x, r/w/a: %i, value: 0x%8.8x, mask: 0x%8.8x", watchpoint->address, watchpoint->length, watchpoint->rw, watchpoint->value, watchpoint->mask);
1692                         watchpoint = watchpoint->next;
1693                 }
1694         }
1695         else if (argc >= 2)
1696         {
1697                 enum watchpoint_rw type = WPT_ACCESS;
1698                 u32 data_value = 0x0;
1699                 u32 data_mask = 0xffffffff;
1700
1701                 if (argc >= 3)
1702                 {
1703                         switch(args[2][0])
1704                         {
1705                                 case 'r':
1706                                         type = WPT_READ;
1707                                         break;
1708                                 case 'w':
1709                                         type = WPT_WRITE;
1710                                         break;
1711                                 case 'a':
1712                                         type = WPT_ACCESS;
1713                                         break;
1714                                 default:
1715                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1716                                         return ERROR_OK;
1717                         }
1718                 }
1719                 if (argc >= 4)
1720                 {
1721                         data_value = strtoul(args[3], NULL, 0);
1722                 }
1723                 if (argc >= 5)
1724                 {
1725                         data_mask = strtoul(args[4], NULL, 0);
1726                 }
1727                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1728         }
1729         else
1730         {
1731                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1732         }
1733
1734         return ERROR_OK;
1735 }
1736
1737 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1738 {
1739         target_t *target = get_current_target(cmd_ctx);
1740
1741         if (argc > 0)
1742                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1743
1744         return ERROR_OK;
1745 }
1746