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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 "replacements.h"
  25 #include "target.h"
  26
  27 #include "log.h"
  28 #include "configuration.h"
  29 #include "binarybuffer.h"
  30 #include "jtag.h"
  31
  32 #include <string.h>
  33 #include <stdlib.h>
  34
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38 #include <errno.h>
  39
  40 #include <sys/time.h>
  41 #include <time.h>
  42
  43 #include <time_support.h>
  44
  45 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  46
  47 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50
  51 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54
  55 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71
  72 /* targets
  73  */
  74 extern target_type_t arm7tdmi_target;
  75 extern target_type_t arm720t_target;
  76 extern target_type_t arm9tdmi_target;
  77 extern target_type_t arm920t_target;
  78 extern target_type_t arm966e_target;
  79 extern target_type_t arm926ejs_target;
  80
  81 target_type_t *target_types[] =
  82 {
  83         &arm7tdmi_target,
  84         &arm9tdmi_target,
  85         &arm920t_target,
  86         &arm720t_target,
  87         &arm966e_target,
  88         &arm926ejs_target,
  89         NULL,
  90 };
  91
  92 target_t *targets = NULL;
  93 target_event_callback_t *target_event_callbacks = NULL;
  94 target_timer_callback_t *target_timer_callbacks = NULL;
  95
  96 char *target_state_strings[] =
  97 {
  98         "unknown",
  99         "running",
 100         "halted",
 101         "reset",
 102         "debug_running",
 103 };
 104
 105 char *target_debug_reason_strings[] =
 106 {
 107         "debug request", "breakpoint", "watchpoint",
 108         "watchpoint and breakpoint", "single step",
 109         "target not halted"
 110 };
 111
 112 char *target_endianess_strings[] =
 113 {
 114         "big endian",
 115         "little endian",
 116 };
 117
 118 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 119
 120 static int target_continous_poll = 1;
 121
 122 /* read a u32 from a buffer in target memory endianness */
 123 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 124 {
 125         if (target->endianness == TARGET_LITTLE_ENDIAN)
 126                 return le_to_h_u32(buffer);
 127         else
 128                 return be_to_h_u32(buffer);
 129 }
 130
 131 /* read a u16 from a buffer in target memory endianness */
 132 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 133 {
 134         if (target->endianness == TARGET_LITTLE_ENDIAN)
 135                 return le_to_h_u16(buffer);
 136         else
 137                 return be_to_h_u16(buffer);
 138 }
 139
 140 /* write a u32 to a buffer in target memory endianness */
 141 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 142 {
 143         if (target->endianness == TARGET_LITTLE_ENDIAN)
 144                 h_u32_to_le(buffer, value);
 145         else
 146                 h_u32_to_be(buffer, value);
 147 }
 148
 149 /* write a u16 to a buffer in target memory endianness */
 150 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 151 {
 152         if (target->endianness == TARGET_LITTLE_ENDIAN)
 153                 h_u16_to_le(buffer, value);
 154         else
 155                 h_u16_to_be(buffer, value);
 156 }
 157
 158 /* returns a pointer to the n-th configured target */
 159 target_t* get_target_by_num(int num)
 160 {
 161         target_t *target = targets;
 162         int i = 0;
 163
 164         while (target)
 165         {
 166                 if (num == i)
 167                         return target;
 168                 target = target->next;
 169                 i++;
 170         }
 171
 172         return NULL;
 173 }
 174
 175 int get_num_by_target(target_t *query_target)
 176 {
 177         target_t *target = targets;
 178         int i = 0;
 179
 180         while (target)
 181         {
 182                 if (target == query_target)
 183                         return i;
 184                 target = target->next;
 185                 i++;
 186         }
 187
 188         return -1;
 189 }
 190
 191 target_t* get_current_target(command_context_t *cmd_ctx)
 192 {
 193         target_t *target = get_target_by_num(cmd_ctx->current_target);
 194
 195         if (target == NULL)
 196         {
 197                 ERROR("BUG: current_target out of bounds");
 198                 exit(-1);
 199         }
 200
 201         return target;
 202 }
 203
 204 /* Process target initialization, when target entered debug out of reset
 205  * the handler is unregistered at the end of this function, so it's only called once
 206  */
 207 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 208 {
 209         FILE *script;
 210         struct command_context_s *cmd_ctx = priv;
 211
 212         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 213         {
 214                 target_unregister_event_callback(target_init_handler, priv);
 215
 216                 script = fopen(target->reset_script, "r");
 217                 if (!script)
 218                 {
 219                         ERROR("couldn't open script file %s", target->reset_script);
 220                                 return ERROR_OK;
 221                 }
 222
 223                 INFO("executing reset script '%s'", target->reset_script);
 224                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 225                 fclose(script);
 226
 227                 jtag_execute_queue();
 228         }
 229
 230         return ERROR_OK;
 231 }
 232
 233 int target_run_and_halt_handler(void *priv)
 234 {
 235         target_t *target = priv;
 236
 237         target->type->halt(target);
 238
 239         return ERROR_OK;
 240 }
 241
 242 int target_process_reset(struct command_context_s *cmd_ctx)
 243 {
 244         int retval = ERROR_OK;
 245         target_t *target;
 246
 247         target = targets;
 248         while (target)
 249         {
 250                 target->type->assert_reset(target);
 251                 target = target->next;
 252         }
 253         jtag_execute_queue();
 254
 255         /* request target halt if necessary, and schedule further action */
 256         target = targets;
 257         while (target)
 258         {
 259                 switch (target->reset_mode)
 260                 {
 261                         case RESET_RUN:
 262                                 /* nothing to do if target just wants to be run */
 263                                 break;
 264                         case RESET_RUN_AND_HALT:
 265                                 /* schedule halt */
 266                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 267                                 break;
 268                         case RESET_RUN_AND_INIT:
 269                                 /* schedule halt */
 270                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 271                                 target_register_event_callback(target_init_handler, cmd_ctx);
 272                                 break;
 273                         case RESET_HALT:
 274                                 target->type->halt(target);
 275                                 break;
 276                         case RESET_INIT:
 277                                 target->type->halt(target);
 278                                 target_register_event_callback(target_init_handler, cmd_ctx);
 279                                 break;
 280                         default:
 281                                 ERROR("BUG: unknown target->reset_mode");
 282                 }
 283                 target = target->next;
 284         }
 285
 286         target = targets;
 287         while (target)
 288         {
 289                 target->type->deassert_reset(target);
 290                 target = target->next;
 291         }
 292         jtag_execute_queue();
 293
 294         return retval;
 295 }
 296
 297 int target_init(struct command_context_s *cmd_ctx)
 298 {
 299         target_t *target = targets;
 300
 301         while (target)
 302         {
 303                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 304                 {
 305                         ERROR("target '%s' init failed", target->type->name);
 306                         exit(-1);
 307                 }
 308                 target = target->next;
 309         }
 310
 311         if (targets)
 312         {
 313                 target_register_user_commands(cmd_ctx);
 314                 target_register_timer_callback(handle_target, 100, 1, NULL);
 315         }
 316
 317         if (startup_mode == DAEMON_RESET)
 318                 target_process_reset(cmd_ctx);
 319
 320         return ERROR_OK;
 321 }
 322
 323 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 324 {
 325         target_event_callback_t **callbacks_p = &target_event_callbacks;
 326
 327         if (callback == NULL)
 328         {
 329                 return ERROR_INVALID_ARGUMENTS;
 330         }
 331
 332         if (*callbacks_p)
 333         {
 334                 while ((*callbacks_p)->next)
 335                         callbacks_p = &((*callbacks_p)->next);
 336                 callbacks_p = &((*callbacks_p)->next);
 337         }
 338
 339         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 340         (*callbacks_p)->callback = callback;
 341         (*callbacks_p)->priv = priv;
 342         (*callbacks_p)->next = NULL;
 343
 344         return ERROR_OK;
 345 }
 346
 347 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 348 {
 349         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 350         struct timeval now;
 351
 352         if (callback == NULL)
 353         {
 354                 return ERROR_INVALID_ARGUMENTS;
 355         }
 356
 357         if (*callbacks_p)
 358         {
 359                 while ((*callbacks_p)->next)
 360                         callbacks_p = &((*callbacks_p)->next);
 361                 callbacks_p = &((*callbacks_p)->next);
 362         }
 363
 364         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 365         (*callbacks_p)->callback = callback;
 366         (*callbacks_p)->periodic = periodic;
 367         (*callbacks_p)->time_ms = time_ms;
 368
 369         gettimeofday(&now, NULL);
 370         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 371         time_ms -= (time_ms % 1000);
 372         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 373         if ((*callbacks_p)->when.tv_usec > 1000000)
 374         {
 375                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 376                 (*callbacks_p)->when.tv_sec += 1;
 377         }
 378
 379         (*callbacks_p)->priv = priv;
 380         (*callbacks_p)->next = NULL;
 381
 382         return ERROR_OK;
 383 }
 384
 385 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 386 {
 387         target_event_callback_t **p = &target_event_callbacks;
 388         target_event_callback_t *c = target_event_callbacks;
 389
 390         if (callback == NULL)
 391         {
 392                 return ERROR_INVALID_ARGUMENTS;
 393         }
 394
 395         while (c)
 396         {
 397                 target_event_callback_t *next = c->next;
 398                 if ((c->callback == callback) && (c->priv == priv))
 399                 {
 400                         *p = next;
 401                         free(c);
 402                         return ERROR_OK;
 403                 }
 404                 else
 405                         p = &(c->next);
 406                 c = next;
 407         }
 408
 409         return ERROR_OK;
 410 }
 411
 412 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 413 {
 414         target_timer_callback_t **p = &target_timer_callbacks;
 415         target_timer_callback_t *c = target_timer_callbacks;
 416
 417         if (callback == NULL)
 418         {
 419                 return ERROR_INVALID_ARGUMENTS;
 420         }
 421
 422         while (c)
 423         {
 424                 target_timer_callback_t *next = c->next;
 425                 if ((c->callback == callback) && (c->priv == priv))
 426                 {
 427                         *p = next;
 428                         free(c);
 429                         return ERROR_OK;
 430                 }
 431                 else
 432                         p = &(c->next);
 433                 c = next;
 434         }
 435
 436         return ERROR_OK;
 437 }
 438
 439 int target_call_event_callbacks(target_t *target, enum target_event event)
 440 {
 441         target_event_callback_t *callback = target_event_callbacks;
 442         target_event_callback_t *next_callback;
 443
 444         DEBUG("target event %i", event);
 445
 446         while (callback)
 447         {
 448                 next_callback = callback->next;
 449                 callback->callback(target, event, callback->priv);
 450                 callback = next_callback;
 451         }
 452
 453         return ERROR_OK;
 454 }
 455
 456 int target_call_timer_callbacks()
 457 {
 458         target_timer_callback_t *callback = target_timer_callbacks;
 459         target_timer_callback_t *next_callback;
 460         struct timeval now;
 461
 462         gettimeofday(&now, NULL);
 463
 464         while (callback)
 465         {
 466                 next_callback = callback->next;
 467
 468                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 469                         || (now.tv_sec > callback->when.tv_sec))
 470                 {
 471                         callback->callback(callback->priv);
 472                         if (callback->periodic)
 473                         {
 474                                 int time_ms = callback->time_ms;
 475                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 476                                 time_ms -= (time_ms % 1000);
 477                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 478                                 if (callback->when.tv_usec > 1000000)
 479                                 {
 480                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 481                                         callback->when.tv_sec += 1;
 482                                 }
 483                         }
 484                         else
 485                                 target_unregister_timer_callback(callback->callback, callback->priv);
 486                 }
 487
 488                 callback = next_callback;
 489         }
 490
 491         return ERROR_OK;
 492 }
 493
 494 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 495 {
 496         working_area_t *c = target->working_areas;
 497         working_area_t *new_wa = NULL;
 498
 499         /* only allocate multiples of 4 byte */
 500         if (size % 4)
 501         {
 502                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 503                 size = CEIL(size, 4);
 504         }
 505
 506         /* see if there's already a matching working area */
 507         while (c)
 508         {
 509                 if ((c->free) && (c->size == size))
 510                 {
 511                         new_wa = c;
 512                         break;
 513                 }
 514                 c = c->next;
 515         }
 516
 517         /* if not, allocate a new one */
 518         if (!new_wa)
 519         {
 520                 working_area_t **p = &target->working_areas;
 521                 u32 first_free = target->working_area;
 522                 u32 free_size = target->working_area_size;
 523
 524                 DEBUG("allocating new working area");
 525
 526                 c = target->working_areas;
 527                 while (c)
 528                 {
 529                         first_free += c->size;
 530                         free_size -= c->size;
 531                         p = &c->next;
 532                         c = c->next;
 533                 }
 534
 535                 if (free_size < size)
 536                 {
 537                         WARNING("not enough working area available");
 538                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 539                 }
 540
 541                 new_wa = malloc(sizeof(working_area_t));
 542                 new_wa->next = NULL;
 543                 new_wa->size = size;
 544                 new_wa->address = first_free;
 545
 546                 if (target->backup_working_area)
 547                 {
 548                         new_wa->backup = malloc(new_wa->size);
 549                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 550                 }
 551                 else
 552                 {
 553                         new_wa->backup = NULL;
 554                 }
 555
 556                 /* put new entry in list */
 557                 *p = new_wa;
 558         }
 559
 560         /* mark as used, and return the new (reused) area */
 561         new_wa->free = 0;
 562         *area = new_wa;
 563
 564         /* user pointer */
 565         new_wa->user = area;
 566
 567         return ERROR_OK;
 568 }
 569
 570 int target_free_working_area(struct target_s *target, working_area_t *area)
 571 {
 572         if (area->free)
 573                 return ERROR_OK;
 574
 575         if (target->backup_working_area)
 576                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 577
 578         area->free = 1;
 579
 580         /* mark user pointer invalid */
 581         *area->user = NULL;
 582         area->user = NULL;
 583
 584         return ERROR_OK;
 585 }
 586
 587 int target_free_all_working_areas(struct target_s *target)
 588 {
 589         working_area_t *c = target->working_areas;
 590
 591         while (c)
 592         {
 593                 working_area_t *next = c->next;
 594                 target_free_working_area(target, c);
 595
 596                 if (c->backup)
 597                         free(c->backup);
 598
 599                 free(c);
 600
 601                 c = next;
 602         }
 603
 604         target->working_areas = NULL;
 605
 606         return ERROR_OK;
 607 }
 608
 609 int target_register_commands(struct command_context_s *cmd_ctx)
 610 {
 611         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 612         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 613         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 614         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 615         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 616         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_CONFIG, NULL);
 617
 618         return ERROR_OK;
 619 }
 620
 621 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 622 {
 623         int retval;
 624
 625         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 626
 627         /* handle writes of less than 4 byte */
 628         if (size < 4)
 629         {
 630                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 631                         return retval;
 632         }
 633
 634         /* handle unaligned head bytes */
 635         if (address % 4)
 636         {
 637                 int unaligned = 4 - (address % 4);
 638
 639                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 640                         return retval;
 641
 642                 buffer += unaligned;
 643                 address += unaligned;
 644                 size -= unaligned;
 645         }
 646
 647         /* handle aligned words */
 648         if (size >= 4)
 649         {
 650                 int aligned = size - (size % 4);
 651
 652                 /* use bulk writes above a certain limit. This may have to be changed */
 653                 if (aligned > 128)
 654                 {
 655                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 656                                 return retval;
 657                 }
 658                 else
 659                 {
 660                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 661                                 return retval;
 662                 }
 663
 664                 buffer += aligned;
 665                 address += aligned;
 666                 size -= aligned;
 667         }
 668
 669         /* handle tail writes of less than 4 bytes */
 670         if (size > 0)
 671         {
 672                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 673                         return retval;
 674         }
 675
 676         return ERROR_OK;
 677 }
 678
 679 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 680 {
 681         int retval;
 682
 683         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 684
 685         /* handle reads of less than 4 byte */
 686         if (size < 4)
 687         {
 688                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 689                         return retval;
 690         }
 691
 692         /* handle unaligned head bytes */
 693         if (address % 4)
 694         {
 695                 int unaligned = 4 - (address % 4);
 696
 697                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 698                         return retval;
 699
 700                 buffer += unaligned;
 701                 address += unaligned;
 702                 size -= unaligned;
 703         }
 704
 705         /* handle aligned words */
 706         if (size >= 4)
 707         {
 708                 int aligned = size - (size % 4);
 709
 710                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 711                         return retval;
 712
 713                 buffer += aligned;
 714                 address += aligned;
 715                 size -= aligned;
 716         }
 717
 718         /* handle tail writes of less than 4 bytes */
 719         if (size > 0)
 720         {
 721                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 722                         return retval;
 723         }
 724
 725         return ERROR_OK;
 726 }
 727
 728 void target_read_u32(struct target_s *target, u32 address, u32 *value)
 729 {
 730         u8 value_buf[4];
 731
 732         target->type->read_memory(target, address, 4, 1, value_buf);
 733
 734         *value = target_buffer_get_u32(target, value_buf);
 735 }
 736
 737 void target_read_u16(struct target_s *target, u32 address, u16 *value)
 738 {
 739         u8 value_buf[2];
 740
 741         target->type->read_memory(target, address, 2, 1, value_buf);
 742
 743         *value = target_buffer_get_u16(target, value_buf);
 744 }
 745
 746 void target_read_u8(struct target_s *target, u32 address, u8 *value)
 747 {
 748         target->type->read_memory(target, address, 1, 1, value);
 749 }
 750
 751 void target_write_u32(struct target_s *target, u32 address, u32 value)
 752 {
 753         u8 value_buf[4];
 754
 755         target_buffer_set_u32(target, value_buf, value);
 756         target->type->write_memory(target, address, 4, 1, value_buf);
 757 }
 758
 759 void target_write_u16(struct target_s *target, u32 address, u16 value)
 760 {
 761         u8 value_buf[2];
 762
 763         target_buffer_set_u16(target, value_buf, value);
 764         target->type->write_memory(target, address, 2, 1, value_buf);
 765 }
 766
 767 void target_write_u8(struct target_s *target, u32 address, u8 value)
 768 {
 769         target->type->read_memory(target, address, 1, 1, &value);
 770 }
 771
 772 int target_register_user_commands(struct command_context_s *cmd_ctx)
 773 {
 774         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
 775         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
 776         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt");
 777         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
 778         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
 779         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction");
 780         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
 781         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
 782
 783         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
 784         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
 785         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
 786
 787         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
 788         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
 789         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
 790
 791         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
 792         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
 793         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
 794         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
 795
 796         register_command(cmd_ctx,  NULL, "load_binary", handle_load_binary_command, COMMAND_EXEC, "load binary <file> <address>");
 797         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_binary_command, COMMAND_EXEC, "dump binary <file> <address> <size>");
 798
 799         return ERROR_OK;
 800 }
 801
 802 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 803 {
 804         target_t *target = targets;
 805         int count = 0;
 806
 807         if (argc == 1)
 808         {
 809                 int num = strtoul(args[0], NULL, 0);
 810
 811                 while (target)
 812                 {
 813                         count++;
 814                         target = target->next;
 815                 }
 816
 817                 if (num < count)
 818                         cmd_ctx->current_target = num;
 819                 else
 820                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
 821
 822                 return ERROR_OK;
 823         }
 824
 825         while (target)
 826         {
 827                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
 828                 target = target->next;
 829         }
 830
 831         return ERROR_OK;
 832 }
 833
 834 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 835 {
 836         int i;
 837         int found = 0;
 838
 839         if (argc < 3)
 840         {
 841                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
 842                 exit(-1);
 843         }
 844
 845         /* search for the specified target */
 846         if (args[0] && (args[0][0] != 0))
 847         {
 848                 for (i = 0; target_types[i]; i++)
 849                 {
 850                         if (strcmp(args[0], target_types[i]->name) == 0)
 851                         {
 852                                 target_t **last_target_p = &targets;
 853
 854                                 /* register target specific commands */
 855                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
 856                                 {
 857                                         ERROR("couldn't register '%s' commands", args[0]);
 858                                         exit(-1);
 859                                 }
 860
 861                                 if (*last_target_p)
 862                                 {
 863                                         while ((*last_target_p)->next)
 864                                                 last_target_p = &((*last_target_p)->next);
 865                                         last_target_p = &((*last_target_p)->next);
 866                                 }
 867
 868                                 *last_target_p = malloc(sizeof(target_t));
 869
 870                                 (*last_target_p)->type = target_types[i];
 871
 872                                 if (strcmp(args[1], "big") == 0)
 873                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
 874                                 else if (strcmp(args[1], "little") == 0)
 875                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
 876                                 else
 877                                 {
 878                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
 879                                         exit(-1);
 880                                 }
 881
 882                                 /* what to do on a target reset */
 883                                 if (strcmp(args[2], "reset_halt") == 0)
 884                                         (*last_target_p)->reset_mode = RESET_HALT;
 885                                 else if (strcmp(args[2], "reset_run") == 0)
 886                                         (*last_target_p)->reset_mode = RESET_RUN;
 887                                 else if (strcmp(args[2], "reset_init") == 0)
 888                                         (*last_target_p)->reset_mode = RESET_INIT;
 889                                 else if (strcmp(args[2], "run_and_halt") == 0)
 890                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
 891                                 else if (strcmp(args[2], "run_and_init") == 0)
 892                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
 893                                 else
 894                                 {
 895                                         ERROR("unknown target startup mode %s", args[2]);
 896                                         exit(-1);
 897                                 }
 898                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
 899
 900                                 (*last_target_p)->reset_script = NULL;
 901                                 (*last_target_p)->post_halt_script = NULL;
 902                                 (*last_target_p)->pre_resume_script = NULL;
 903
 904                                 (*last_target_p)->working_area = 0x0;
 905                                 (*last_target_p)->working_area_size = 0x0;
 906                                 (*last_target_p)->working_areas = NULL;
 907                                 (*last_target_p)->backup_working_area = 0;
 908
 909                                 (*last_target_p)->state = TARGET_UNKNOWN;
 910                                 (*last_target_p)->reg_cache = NULL;
 911                                 (*last_target_p)->breakpoints = NULL;
 912                                 (*last_target_p)->watchpoints = NULL;
 913                                 (*last_target_p)->next = NULL;
 914                                 (*last_target_p)->arch_info = NULL;
 915
 916                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
 917
 918                                 found = 1;
 919                                 break;
 920                         }
 921                 }
 922         }
 923
 924         /* no matching target found */
 925         if (!found)
 926         {
 927                 ERROR("target '%s' not found", args[0]);
 928                 exit(-1);
 929         }
 930
 931         return ERROR_OK;
 932 }
 933
 934 /* usage: target_script <target#> <event> <script_file> */
 935 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 936 {
 937         target_t *target = NULL;
 938
 939         if (argc < 3)
 940         {
 941                 ERROR("incomplete target_script command");
 942                 exit(-1);
 943         }
 944
 945         target = get_target_by_num(strtoul(args[0], NULL, 0));
 946
 947         if (!target)
 948         {
 949                 ERROR("target number '%s' not defined", args[0]);
 950                 exit(-1);
 951         }
 952
 953         if (strcmp(args[1], "reset") == 0)
 954         {
 955                 if (target->reset_script)
 956                         free(target->reset_script);
 957                 target->reset_script = strdup(args[2]);
 958         }
 959         else if (strcmp(args[1], "post_halt") == 0)
 960         {
 961                 if (target->post_halt_script)
 962                         free(target->post_halt_script);
 963                 target->post_halt_script = strdup(args[2]);
 964         }
 965         else if (strcmp(args[1], "pre_resume") == 0)
 966         {
 967                 if (target->pre_resume_script)
 968                         free(target->pre_resume_script);
 969                 target->pre_resume_script = strdup(args[2]);
 970         }
 971         else
 972         {
 973                 ERROR("unknown event type: '%s", args[1]);
 974                 exit(-1);
 975         }
 976
 977         return ERROR_OK;
 978 }
 979
 980 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 981 {
 982         target_t *target = NULL;
 983
 984         if (argc < 2)
 985         {
 986                 ERROR("incomplete run_and_halt_time command");
 987                 exit(-1);
 988         }
 989
 990         target = get_target_by_num(strtoul(args[0], NULL, 0));
 991
 992         if (!target)
 993         {
 994                 ERROR("target number '%s' not defined", args[0]);
 995                 exit(-1);
 996         }
 997
 998         target->run_and_halt_time = strtoul(args[1], NULL, 0);
 999
1000         return ERROR_OK;
1001 }
1002
1003 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1004 {
1005         target_t *target = NULL;
1006
1007         if (argc < 4)
1008         {
1009                 ERROR("incomplete working_area command. usage: working_area <target#> <address> <size> <'backup'|'nobackup'>");
1010                 exit(-1);
1011         }
1012
1013         target = get_target_by_num(strtoul(args[0], NULL, 0));
1014
1015         if (!target)
1016         {
1017                 ERROR("target number '%s' not defined", args[0]);
1018                 exit(-1);
1019         }
1020
1021         target->working_area = strtoul(args[1], NULL, 0);
1022         target->working_area_size = strtoul(args[2], NULL, 0);
1023
1024         if (strcmp(args[3], "backup") == 0)
1025         {
1026                 target->backup_working_area = 1;
1027         }
1028         else if (strcmp(args[3], "nobackup") == 0)
1029         {
1030                 target->backup_working_area = 0;
1031         }
1032         else
1033         {
1034                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1035                 exit(-1);
1036         }
1037
1038         return ERROR_OK;
1039 }
1040
1041
1042 /* process target state changes */
1043 int handle_target(void *priv)
1044 {
1045         int retval;
1046         target_t *target = targets;
1047
1048         while (target)
1049         {
1050                 /* only poll if target isn't already halted */
1051                 if (target->state != TARGET_HALTED)
1052                 {
1053                         if (target_continous_poll)
1054                                 if ((retval = target->type->poll(target)) < 0)
1055                                 {
1056                                         ERROR("couldn't poll target, exiting");
1057                                         exit(-1);
1058                                 }
1059                 }
1060
1061                 target = target->next;
1062         }
1063
1064         return ERROR_OK;
1065 }
1066
1067 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1068 {
1069         target_t *target;
1070         reg_t *reg = NULL;
1071         int count = 0;
1072         char *value;
1073
1074         DEBUG("");
1075
1076         target = get_current_target(cmd_ctx);
1077
1078         /* list all available registers for the current target */
1079         if (argc == 0)
1080         {
1081                 reg_cache_t *cache = target->reg_cache;
1082
1083                 count = 0;
1084                 while(cache)
1085                 {
1086                         int i;
1087                         for (i = 0; i < cache->num_regs; i++)
1088                         {
1089                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1090                                 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);
1091                                 free(value);
1092                         }
1093                         cache = cache->next;
1094                 }
1095
1096                 return ERROR_OK;
1097         }
1098
1099         /* access a single register by its ordinal number */
1100         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1101         {
1102                 int num = strtoul(args[0], NULL, 0);
1103                 reg_cache_t *cache = target->reg_cache;
1104
1105                 count = 0;
1106                 while(cache)
1107                 {
1108                         int i;
1109                         for (i = 0; i < cache->num_regs; i++)
1110                         {
1111                                 if (count++ == num)
1112                                 {
1113                                         reg = &cache->reg_list[i];
1114                                         break;
1115                                 }
1116                         }
1117                         if (reg)
1118                                 break;
1119                         cache = cache->next;
1120                 }
1121
1122                 if (!reg)
1123                 {
1124                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1125                         return ERROR_OK;
1126                 }
1127         } else /* access a single register by its name */
1128         {
1129                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1130
1131                 if (!reg)
1132                 {
1133                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1134                         return ERROR_OK;
1135                 }
1136         }
1137
1138         /* display a register */
1139         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1140         {
1141                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1142                         reg->valid = 0;
1143
1144                 if (reg->valid == 0)
1145                 {
1146                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1147                         if (arch_type == NULL)
1148                         {
1149                                 ERROR("BUG: encountered unregistered arch type");
1150                                 return ERROR_OK;
1151                         }
1152                         arch_type->get(reg);
1153                 }
1154                 value = buf_to_str(reg->value, reg->size, 16);
1155                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1156                 free(value);
1157                 return ERROR_OK;
1158         }
1159
1160         /* set register value */
1161         if (argc == 2)
1162         {
1163                 u8 *buf = malloc(CEIL(reg->size, 8));
1164                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1165
1166                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1167                 if (arch_type == NULL)
1168                 {
1169                         ERROR("BUG: encountered unregistered arch type");
1170                         return ERROR_OK;
1171                 }
1172
1173                 arch_type->set(reg, buf);
1174
1175                 value = buf_to_str(reg->value, reg->size, 16);
1176                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1177                 free(value);
1178
1179                 free(buf);
1180
1181                 return ERROR_OK;
1182         }
1183
1184         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1185
1186         return ERROR_OK;
1187 }
1188
1189 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1190 {
1191         target_t *target = get_current_target(cmd_ctx);
1192         char buffer[512];
1193
1194         if (argc == 0)
1195         {
1196                 command_print(cmd_ctx, "target state: %s", target_state_strings[target->type->poll(target)]);
1197                 if (target->state == TARGET_HALTED)
1198                 {
1199                         target->type->arch_state(target, buffer, 512);
1200                         buffer[511] = 0;
1201                         command_print(cmd_ctx, "%s", buffer);
1202                 }
1203         }
1204         else
1205         {
1206                 if (strcmp(args[0], "on") == 0)
1207                 {
1208                         target_continous_poll = 1;
1209                 }
1210                 else if (strcmp(args[0], "off") == 0)
1211                 {
1212                         target_continous_poll = 0;
1213                 }
1214         }
1215
1216
1217         return ERROR_OK;
1218 }
1219
1220 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1221 {
1222         target_t *target = get_current_target(cmd_ctx);
1223         struct timeval timeout, now;
1224
1225         gettimeofday(&timeout, NULL);
1226         timeval_add_time(&timeout, 5, 0);
1227
1228         command_print(cmd_ctx, "waiting for target halted...");
1229
1230         while(target->type->poll(target))
1231         {
1232                 if (target->state == TARGET_HALTED)
1233                 {
1234                         command_print(cmd_ctx, "target halted");
1235                         break;
1236                 }
1237                 target_call_timer_callbacks();
1238
1239                 gettimeofday(&now, NULL);
1240                 if ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))
1241                 {
1242                         command_print(cmd_ctx, "timed out while waiting for target halt");
1243                         ERROR("timed out while waiting for target halt");
1244                         break;
1245                 }
1246         }
1247
1248         return ERROR_OK;
1249 }
1250
1251 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1252 {
1253         int retval;
1254         target_t *target = get_current_target(cmd_ctx);
1255
1256         DEBUG("");
1257
1258         command_print(cmd_ctx, "requesting target halt...");
1259
1260         if ((retval = target->type->halt(target)) != ERROR_OK)
1261         {
1262                 switch (retval)
1263                 {
1264                         case ERROR_TARGET_ALREADY_HALTED:
1265                                 command_print(cmd_ctx, "target already halted");
1266                                 break;
1267                         case ERROR_TARGET_TIMEOUT:
1268                                 command_print(cmd_ctx, "target timed out... shutting down");
1269                                 exit(-1);
1270                         default:
1271                                 command_print(cmd_ctx, "unknown error... shutting down");
1272                                 exit(-1);
1273                 }
1274         }
1275
1276         return ERROR_OK;
1277
1278 }
1279
1280 /* what to do on daemon startup */
1281 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1282 {
1283         if (argc == 1)
1284         {
1285                 if (strcmp(args[0], "attach") == 0)
1286                 {
1287                         startup_mode = DAEMON_ATTACH;
1288                         return ERROR_OK;
1289                 }
1290                 else if (strcmp(args[0], "reset") == 0)
1291                 {
1292                         startup_mode = DAEMON_RESET;
1293                         return ERROR_OK;
1294                 }
1295         }
1296
1297         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1298         return ERROR_OK;
1299
1300 }
1301
1302 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1303 {
1304         target_t *target = get_current_target(cmd_ctx);
1305         int retval;
1306
1307         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1308
1309         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1310         {
1311                 switch (retval)
1312                 {
1313                         case ERROR_TARGET_TIMEOUT:
1314                                 command_print(cmd_ctx, "target timed out... shutting down");
1315                                 exit(-1);
1316                         default:
1317                                 command_print(cmd_ctx, "unknown error... shutting down");
1318                                 exit(-1);
1319                 }
1320         }
1321
1322         return ERROR_OK;
1323 }
1324
1325 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1326 {
1327         target_t *target = get_current_target(cmd_ctx);
1328         enum target_reset_mode reset_mode = RESET_RUN;
1329
1330         DEBUG("");
1331
1332         if (argc >= 1)
1333         {
1334                 if (strcmp("run", args[0]) == 0)
1335                         reset_mode = RESET_RUN;
1336                 else if (strcmp("halt", args[0]) == 0)
1337                         reset_mode = RESET_HALT;
1338                 else if (strcmp("init", args[0]) == 0)
1339                         reset_mode = RESET_INIT;
1340                 else if (strcmp("run_and_halt", args[0]) == 0)
1341                 {
1342                         reset_mode = RESET_RUN_AND_HALT;
1343                         if (argc >= 2)
1344                         {
1345                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1346                         }
1347                 }
1348                 else if (strcmp("run_and_init", args[0]) == 0)
1349                 {
1350                         reset_mode = RESET_RUN_AND_INIT;
1351                         if (argc >= 2)
1352                         {
1353                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1354                         }
1355                 }
1356                 else
1357                 {
1358                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1359                         return ERROR_OK;
1360                 }
1361                 target->reset_mode = reset_mode;
1362         }
1363
1364         target_process_reset(cmd_ctx);
1365
1366         return ERROR_OK;
1367 }
1368
1369 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1370 {
1371         int retval;
1372         target_t *target = get_current_target(cmd_ctx);
1373
1374         DEBUG("");
1375
1376         if (argc == 0)
1377                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1378         else if (argc == 1)
1379                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1380         else
1381         {
1382                 command_print(cmd_ctx, "usage: resume [address]");
1383                 return ERROR_OK;
1384         }
1385
1386         if (retval != ERROR_OK)
1387         {
1388                 switch (retval)
1389                 {
1390                         case ERROR_TARGET_NOT_HALTED:
1391                                 command_print(cmd_ctx, "target not halted");
1392                                 break;
1393                         default:
1394                                 command_print(cmd_ctx, "unknown error... shutting down");
1395                                 exit(-1);
1396                 }
1397         }
1398
1399         return ERROR_OK;
1400 }
1401
1402 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1403 {
1404         target_t *target = get_current_target(cmd_ctx);
1405
1406         DEBUG("");
1407
1408         if (argc == 0)
1409                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1410
1411         if (argc == 1)
1412                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1413
1414         return ERROR_OK;
1415 }
1416
1417 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1418 {
1419         int count = 1;
1420         int size = 4;
1421         u32 address = 0;
1422         int i;
1423
1424         char output[128];
1425         int output_len;
1426
1427         int retval;
1428
1429         u8 *buffer;
1430         target_t *target = get_current_target(cmd_ctx);
1431
1432         if (argc < 1)
1433                 return ERROR_OK;
1434
1435         if (argc == 2)
1436                 count = strtoul(args[1], NULL, 0);
1437
1438         address = strtoul(args[0], NULL, 0);
1439
1440
1441         switch (cmd[2])
1442         {
1443                 case 'w':
1444                         size = 4;
1445                         break;
1446                 case 'h':
1447                         size = 2;
1448                         break;
1449                 case 'b':
1450                         size = 1;
1451                         break;
1452                 default:
1453                         return ERROR_OK;
1454         }
1455
1456         buffer = calloc(count, size);
1457         if ((retval  = target->type->read_memory(target, address, size, count, buffer)) != ERROR_OK)
1458         {
1459                 switch (retval)
1460                 {
1461                         case ERROR_TARGET_UNALIGNED_ACCESS:
1462                                 command_print(cmd_ctx, "error: address not aligned");
1463                                 break;
1464                         case ERROR_TARGET_NOT_HALTED:
1465                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1466                                 break;
1467                         case ERROR_TARGET_DATA_ABORT:
1468                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1469                                 break;
1470                         default:
1471                                 command_print(cmd_ctx, "error: unknown error");
1472                                 break;
1473                 }
1474                 return ERROR_OK;
1475         }
1476
1477         output_len = 0;
1478
1479         for (i = 0; i < count; i++)
1480         {
1481                 if (i%8 == 0)
1482                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1483
1484                 switch (size)
1485                 {
1486                         case 4:
1487                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1488                                 break;
1489                         case 2:
1490                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1491                                 break;
1492                         case 1:
1493                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1494                                 break;
1495                 }
1496
1497                 if ((i%8 == 7) || (i == count - 1))
1498                 {
1499                         command_print(cmd_ctx, output);
1500                         output_len = 0;
1501                 }
1502         }
1503
1504         free(buffer);
1505
1506         return ERROR_OK;
1507 }
1508
1509 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1510 {
1511         u32 address = 0;
1512         u32 value = 0;
1513         int retval;
1514         target_t *target = get_current_target(cmd_ctx);
1515         u8 value_buf[4];
1516
1517         if (argc < 2)
1518                 return ERROR_OK;
1519
1520         address = strtoul(args[0], NULL, 0);
1521         value = strtoul(args[1], NULL, 0);
1522
1523         switch (cmd[2])
1524         {
1525                 case 'w':
1526                         target_buffer_set_u32(target, value_buf, value);
1527                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1528                         break;
1529                 case 'h':
1530                         target_buffer_set_u16(target, value_buf, value);
1531                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1532                         break;
1533                 case 'b':
1534                         value_buf[0] = value;
1535                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1536                         break;
1537                 default:
1538                         return ERROR_OK;
1539         }
1540
1541         switch (retval)
1542         {
1543                 case ERROR_TARGET_UNALIGNED_ACCESS:
1544                         command_print(cmd_ctx, "error: address not aligned");
1545                         break;
1546                 case ERROR_TARGET_DATA_ABORT:
1547                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1548                         break;
1549                 case ERROR_TARGET_NOT_HALTED:
1550                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1551                         break;
1552                 case ERROR_OK:
1553                         break;
1554                 default:
1555                         command_print(cmd_ctx, "error: unknown error");
1556                         break;
1557         }
1558
1559         return ERROR_OK;
1560
1561 }
1562
1563 int handle_load_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1564 {
1565         FILE *binary;
1566         u32 address;
1567         struct stat binary_stat;
1568         u32 binary_size;
1569
1570         u8 *buffer;
1571         u32 buf_cnt;
1572
1573         struct timeval start, end, duration;
1574
1575         target_t *target = get_current_target(cmd_ctx);
1576
1577         if (argc != 2)
1578         {
1579                 command_print(cmd_ctx, "usage: load_binary <filename> <address>");
1580                 return ERROR_OK;
1581         }
1582
1583         address = strtoul(args[1], NULL, 0);
1584
1585         if (stat(args[0], &binary_stat) == -1)
1586         {
1587                 ERROR("couldn't stat() %s: %s", args[0], strerror(errno));
1588                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1589                 return ERROR_OK;
1590         }
1591
1592         if (!(binary = fopen(args[0], "rb")))
1593         {
1594                 ERROR("couldn't open %s: %s", args[0], strerror(errno));
1595                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1596                 return ERROR_OK;
1597         }
1598
1599         buffer = malloc(128 * 1024);
1600
1601         gettimeofday(&start, NULL);
1602
1603         binary_size = binary_stat.st_size;
1604         while (binary_size > 0)
1605         {
1606                 buf_cnt = fread(buffer, 1, 128*1024, binary);
1607                 target_write_buffer(target, address, buf_cnt, buffer);
1608                 address += buf_cnt;
1609                 binary_size -= buf_cnt;
1610         }
1611
1612         gettimeofday(&end, NULL);
1613
1614         free(buffer);
1615
1616         timeval_subtract(&duration, &end, &start);
1617         command_print(cmd_ctx, "downloaded %lli byte in %is %ius", (long long) binary_stat.st_size, duration.tv_sec, duration.tv_usec);
1618
1619         fclose(binary);
1620
1621         return ERROR_OK;
1622
1623 }
1624
1625 int handle_dump_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1626 {
1627         FILE *binary;
1628         u32 address;
1629         u32 size;
1630         u8 buffer[560];
1631
1632         struct timeval start, end, duration;
1633
1634         target_t *target = get_current_target(cmd_ctx);
1635
1636         if (argc != 3)
1637         {
1638                 command_print(cmd_ctx, "usage: dump_binary <filename> <address> <size>");
1639                 return ERROR_OK;
1640         }
1641
1642         address = strtoul(args[1], NULL, 0);
1643         size = strtoul(args[2], NULL, 0);
1644
1645         if (!(binary = fopen(args[0], "wb")))
1646         {
1647                 ERROR("couldn't open %s for writing: %s", args[0], strerror(errno));
1648                 command_print(cmd_ctx, "error accessing file %s", args[0]);
1649                 return ERROR_OK;
1650         }
1651
1652         if ((address & 3) || (size & 3))
1653         {
1654                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1655                 return ERROR_OK;
1656         }
1657
1658         gettimeofday(&start, NULL);
1659
1660         while (size > 0)
1661         {
1662                 u32 this_run_size = (size > 560) ? 560 : size;
1663                 target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1664                 fwrite(buffer, 1, this_run_size, binary);
1665                 size -= this_run_size;
1666                 address += this_run_size;
1667         }
1668
1669         fclose(binary);
1670
1671         gettimeofday(&end, NULL);
1672
1673         timeval_subtract(&duration, &end, &start);
1674         command_print(cmd_ctx, "dumped %i byte in %is %ius", strtoul(args[2], NULL, 0), duration.tv_sec, duration.tv_usec);
1675
1676         return ERROR_OK;
1677
1678 }
1679
1680 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1681 {
1682         int retval;
1683         target_t *target = get_current_target(cmd_ctx);
1684
1685         if (argc == 0)
1686         {
1687                 breakpoint_t *breakpoint = target->breakpoints;
1688
1689                 while (breakpoint)
1690                 {
1691                         if (breakpoint->type == BKPT_SOFT)
1692                         {
1693                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
1694                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
1695                                 free(buf);
1696                         }
1697                         else
1698                         {
1699                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
1700                         }
1701                         breakpoint = breakpoint->next;
1702                 }
1703         }
1704         else if (argc >= 2)
1705         {
1706                 int hw = BKPT_SOFT;
1707                 u32 length = 0;
1708
1709                 length = strtoul(args[1], NULL, 0);
1710
1711                 if (argc >= 3)
1712                         if (strcmp(args[2], "hw") == 0)
1713                                 hw = BKPT_HARD;
1714
1715                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
1716                 {
1717                         switch (retval)
1718                         {
1719                                 case ERROR_TARGET_NOT_HALTED:
1720                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
1721                                         break;
1722                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
1723                                         command_print(cmd_ctx, "no more breakpoints available");
1724                                         break;
1725                                 default:
1726                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
1727                                         break;
1728                         }
1729                 }
1730                 else
1731                 {
1732                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
1733                 }
1734         }
1735         else
1736         {
1737                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
1738         }
1739
1740         return ERROR_OK;
1741 }
1742
1743 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1744 {
1745         target_t *target = get_current_target(cmd_ctx);
1746
1747         if (argc > 0)
1748                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
1749
1750         return ERROR_OK;
1751 }
1752
1753 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1754 {
1755         target_t *target = get_current_target(cmd_ctx);
1756
1757         if (argc == 0)
1758         {
1759                 watchpoint_t *watchpoint = target->watchpoints;
1760
1761                 while (watchpoint)
1762                 {
1763                         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);
1764                         watchpoint = watchpoint->next;
1765                 }
1766         }
1767         else if (argc >= 2)
1768         {
1769                 enum watchpoint_rw type = WPT_ACCESS;
1770                 u32 data_value = 0x0;
1771                 u32 data_mask = 0xffffffff;
1772
1773                 if (argc >= 3)
1774                 {
1775                         switch(args[2][0])
1776                         {
1777                                 case 'r':
1778                                         type = WPT_READ;
1779                                         break;
1780                                 case 'w':
1781                                         type = WPT_WRITE;
1782                                         break;
1783                                 case 'a':
1784                                         type = WPT_ACCESS;
1785                                         break;
1786                                 default:
1787                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1788                                         return ERROR_OK;
1789                         }
1790                 }
1791                 if (argc >= 4)
1792                 {
1793                         data_value = strtoul(args[3], NULL, 0);
1794                 }
1795                 if (argc >= 5)
1796                 {
1797                         data_mask = strtoul(args[4], NULL, 0);
1798                 }
1799                 watchpoint_add(target, strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0), type, data_value, data_mask);
1800         }
1801         else
1802         {
1803                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
1804         }
1805
1806         return ERROR_OK;
1807 }
1808
1809 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1810 {
1811         target_t *target = get_current_target(cmd_ctx);
1812
1813         if (argc > 0)
1814                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
1815
1816         return ERROR_OK;
1817 }
1818