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