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