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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 #include "target_request.h"
  27
  28 #include "log.h"
  29 #include "configuration.h"
  30 #include "binarybuffer.h"
  31 #include "jtag.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <inttypes.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <sys/time.h>
  43 #include <time.h>
  44
  45 #include <time_support.h>
  46
  47 #include <fileio.h>
  48 #include <image.h>
  49
  50 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  51
  52
  53 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55
  56 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59
  60 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  79
  80 /* targets
  81  */
  82 extern target_type_t arm7tdmi_target;
  83 extern target_type_t arm720t_target;
  84 extern target_type_t arm9tdmi_target;
  85 extern target_type_t arm920t_target;
  86 extern target_type_t arm966e_target;
  87 extern target_type_t arm926ejs_target;
  88 extern target_type_t feroceon_target;
  89 extern target_type_t xscale_target;
  90 extern target_type_t cortexm3_target;
  91 extern target_type_t arm11_target;
  92
  93 target_type_t *target_types[] =
  94 {
  95         &arm7tdmi_target,
  96         &arm9tdmi_target,
  97         &arm920t_target,
  98         &arm720t_target,
  99         &arm966e_target,
 100         &arm926ejs_target,
 101         &feroceon_target,
 102         &xscale_target,
 103         &cortexm3_target,
 104         &arm11_target,
 105         NULL,
 106 };
 107
 108 target_t *targets = NULL;
 109 target_event_callback_t *target_event_callbacks = NULL;
 110 target_timer_callback_t *target_timer_callbacks = NULL;
 111
 112 char *target_state_strings[] =
 113 {
 114         "unknown",
 115         "running",
 116         "halted",
 117         "reset",
 118         "debug_running",
 119 };
 120
 121 char *target_debug_reason_strings[] =
 122 {
 123         "debug request", "breakpoint", "watchpoint",
 124         "watchpoint and breakpoint", "single step",
 125         "target not halted", "undefined"
 126 };
 127
 128 char *target_endianess_strings[] =
 129 {
 130         "big endian",
 131         "little endian",
 132 };
 133
 134 static int target_continous_poll = 1;
 135
 136 /* read a u32 from a buffer in target memory endianness */
 137 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 138 {
 139         if (target->endianness == TARGET_LITTLE_ENDIAN)
 140                 return le_to_h_u32(buffer);
 141         else
 142                 return be_to_h_u32(buffer);
 143 }
 144
 145 /* read a u16 from a buffer in target memory endianness */
 146 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 147 {
 148         if (target->endianness == TARGET_LITTLE_ENDIAN)
 149                 return le_to_h_u16(buffer);
 150         else
 151                 return be_to_h_u16(buffer);
 152 }
 153
 154 /* write a u32 to a buffer in target memory endianness */
 155 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 156 {
 157         if (target->endianness == TARGET_LITTLE_ENDIAN)
 158                 h_u32_to_le(buffer, value);
 159         else
 160                 h_u32_to_be(buffer, value);
 161 }
 162
 163 /* write a u16 to a buffer in target memory endianness */
 164 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 165 {
 166         if (target->endianness == TARGET_LITTLE_ENDIAN)
 167                 h_u16_to_le(buffer, value);
 168         else
 169                 h_u16_to_be(buffer, value);
 170 }
 171
 172 /* returns a pointer to the n-th configured target */
 173 target_t* get_target_by_num(int num)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (num == i)
 181                         return target;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return NULL;
 187 }
 188
 189 int get_num_by_target(target_t *query_target)
 190 {
 191         target_t *target = targets;
 192         int i = 0;
 193
 194         while (target)
 195         {
 196                 if (target == query_target)
 197                         return i;
 198                 target = target->next;
 199                 i++;
 200         }
 201
 202         return -1;
 203 }
 204
 205 target_t* get_current_target(command_context_t *cmd_ctx)
 206 {
 207         target_t *target = get_target_by_num(cmd_ctx->current_target);
 208
 209         if (target == NULL)
 210         {
 211                 LOG_ERROR("BUG: current_target out of bounds");
 212                 exit(-1);
 213         }
 214
 215         return target;
 216 }
 217
 218 /* Process target initialization, when target entered debug out of reset
 219  * the handler is unregistered at the end of this function, so it's only called once
 220  */
 221 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 222 {
 223         FILE *script;
 224         struct command_context_s *cmd_ctx = priv;
 225
 226         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 227         {
 228                 target_unregister_event_callback(target_init_handler, priv);
 229
 230                 script = open_file_from_path(target->reset_script, "r");
 231                 if (!script)
 232                 {
 233                         LOG_ERROR("couldn't open script file %s", target->reset_script);
 234                                 return ERROR_OK;
 235                 }
 236
 237                 LOG_INFO("executing reset script '%s'", target->reset_script);
 238                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 239                 fclose(script);
 240
 241                 jtag_execute_queue();
 242         }
 243
 244         return ERROR_OK;
 245 }
 246
 247 int target_run_and_halt_handler(void *priv)
 248 {
 249         target_t *target = priv;
 250
 251         target->type->halt(target);
 252
 253         return ERROR_OK;
 254 }
 255
 256 int target_process_reset(struct command_context_s *cmd_ctx)
 257 {
 258         int retval = ERROR_OK;
 259         target_t *target;
 260         struct timeval timeout, now;
 261
 262         jtag->speed(jtag_speed);
 263
 264         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 265                 return retval;
 266
 267
 268         /* prepare reset_halt where necessary */
 269         target = targets;
 270         while (target)
 271         {
 272                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 273                 {
 274                         switch (target->reset_mode)
 275                         {
 276                                 case RESET_HALT:
 277                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 278                                         target->reset_mode = RESET_RUN_AND_HALT;
 279                                         break;
 280                                 case RESET_INIT:
 281                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 282                                         target->reset_mode = RESET_RUN_AND_INIT;
 283                                         break;
 284                                 default:
 285                                         break;
 286                         }
 287                 }
 288                 target = target->next;
 289         }
 290
 291         target = targets;
 292         while (target)
 293         {
 294                 /* we have no idea what state the target is in, so we
 295                  * have to drop working areas
 296                  */
 297                 target_free_all_working_areas_restore(target, 0);
 298                 target->type->assert_reset(target);
 299                 target = target->next;
 300         }
 301         if ((retval = jtag_execute_queue()) != ERROR_OK)
 302         {
 303                 LOG_WARNING("JTAG communication failed asserting reset.");
 304                 retval = ERROR_OK;
 305         }
 306
 307         /* request target halt if necessary, and schedule further action */
 308         target = targets;
 309         while (target)
 310         {
 311                 switch (target->reset_mode)
 312                 {
 313                         case RESET_RUN:
 314                                 /* nothing to do if target just wants to be run */
 315                                 break;
 316                         case RESET_RUN_AND_HALT:
 317                                 /* schedule halt */
 318                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 319                                 break;
 320                         case RESET_RUN_AND_INIT:
 321                                 /* schedule halt */
 322                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 323                                 target_register_event_callback(target_init_handler, cmd_ctx);
 324                                 break;
 325                         case RESET_HALT:
 326                                 target->type->halt(target);
 327                                 break;
 328                         case RESET_INIT:
 329                                 target->type->halt(target);
 330                                 target_register_event_callback(target_init_handler, cmd_ctx);
 331                                 break;
 332                         default:
 333                                 LOG_ERROR("BUG: unknown target->reset_mode");
 334                 }
 335                 target = target->next;
 336         }
 337
 338         if ((retval = jtag_execute_queue()) != ERROR_OK)
 339         {
 340                 LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
 341                 retval = ERROR_OK;
 342         }
 343
 344         target = targets;
 345         while (target)
 346         {
 347                 target->type->deassert_reset(target);
 348                 target = target->next;
 349         }
 350
 351         if ((retval = jtag_execute_queue()) != ERROR_OK)
 352         {
 353                 LOG_WARNING("JTAG communication failed while deasserting reset.");
 354                 retval = ERROR_OK;
 355         }
 356
 357         LOG_DEBUG("Waiting for halted stated as approperiate");
 358
 359         /* Wait for reset to complete, maximum 5 seconds. */
 360         gettimeofday(&timeout, NULL);
 361         timeval_add_time(&timeout, 5, 0);
 362         for(;;)
 363         {
 364                 gettimeofday(&now, NULL);
 365
 366                 target_call_timer_callbacks_now();
 367
 368                 target = targets;
 369                 while (target)
 370                 {
 371                         LOG_DEBUG("Polling target");
 372                         target->type->poll(target);
 373                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 374                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 375                                         (target->reset_mode == RESET_HALT) ||
 376                                         (target->reset_mode == RESET_INIT))
 377                         {
 378                                 if (target->state != TARGET_HALTED)
 379                                 {
 380                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 381                                         {
 382                                                 LOG_USER("Timed out waiting for halt after reset");
 383                                                 goto done;
 384                                         }
 385                                         /* this will send alive messages on e.g. GDB remote protocol. */
 386                                         usleep(500*1000);
 387                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 388                                         goto again;
 389                                 }
 390                         }
 391                         target = target->next;
 392                 }
 393                 /* All targets we're waiting for are halted */
 394                 break;
 395
 396                 again:;
 397         }
 398         done:
 399
 400
 401         /* We want any events to be processed before the prompt */
 402         target_call_timer_callbacks_now();
 403
 404         /* if we timed out we need to unregister these handlers */
 405         target = targets;
 406         while (target)
 407         {
 408                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 409                 target = target->next;
 410         }
 411         target_unregister_event_callback(target_init_handler, cmd_ctx);
 412
 413
 414         jtag->speed(jtag_speed_post_reset);
 415
 416         return retval;
 417 }
 418
 419 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 420 {
 421         *physical = virtual;
 422         return ERROR_OK;
 423 }
 424
 425 static int default_mmu(struct target_s *target, int *enabled)
 426 {
 427         *enabled = 0;
 428         return ERROR_OK;
 429 }
 430
 431 int target_init(struct command_context_s *cmd_ctx)
 432 {
 433         target_t *target = targets;
 434
 435         while (target)
 436         {
 437                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 438                 {
 439                         LOG_ERROR("target '%s' init failed", target->type->name);
 440                         exit(-1);
 441                 }
 442
 443                 /* Set up default functions if none are provided by target */
 444                 if (target->type->virt2phys == NULL)
 445                 {
 446                         target->type->virt2phys = default_virt2phys;
 447                 }
 448                 if (target->type->mmu == NULL)
 449                 {
 450                         target->type->mmu = default_mmu;
 451                 }
 452                 target = target->next;
 453         }
 454
 455         if (targets)
 456         {
 457                 target_register_user_commands(cmd_ctx);
 458                 target_register_timer_callback(handle_target, 100, 1, NULL);
 459         }
 460
 461         return ERROR_OK;
 462 }
 463
 464 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 465 {
 466         target_event_callback_t **callbacks_p = &target_event_callbacks;
 467
 468         if (callback == NULL)
 469         {
 470                 return ERROR_INVALID_ARGUMENTS;
 471         }
 472
 473         if (*callbacks_p)
 474         {
 475                 while ((*callbacks_p)->next)
 476                         callbacks_p = &((*callbacks_p)->next);
 477                 callbacks_p = &((*callbacks_p)->next);
 478         }
 479
 480         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 481         (*callbacks_p)->callback = callback;
 482         (*callbacks_p)->priv = priv;
 483         (*callbacks_p)->next = NULL;
 484
 485         return ERROR_OK;
 486 }
 487
 488 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 489 {
 490         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 491         struct timeval now;
 492
 493         if (callback == NULL)
 494         {
 495                 return ERROR_INVALID_ARGUMENTS;
 496         }
 497
 498         if (*callbacks_p)
 499         {
 500                 while ((*callbacks_p)->next)
 501                         callbacks_p = &((*callbacks_p)->next);
 502                 callbacks_p = &((*callbacks_p)->next);
 503         }
 504
 505         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 506         (*callbacks_p)->callback = callback;
 507         (*callbacks_p)->periodic = periodic;
 508         (*callbacks_p)->time_ms = time_ms;
 509
 510         gettimeofday(&now, NULL);
 511         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 512         time_ms -= (time_ms % 1000);
 513         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 514         if ((*callbacks_p)->when.tv_usec > 1000000)
 515         {
 516                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 517                 (*callbacks_p)->when.tv_sec += 1;
 518         }
 519
 520         (*callbacks_p)->priv = priv;
 521         (*callbacks_p)->next = NULL;
 522
 523         return ERROR_OK;
 524 }
 525
 526 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 527 {
 528         target_event_callback_t **p = &target_event_callbacks;
 529         target_event_callback_t *c = target_event_callbacks;
 530
 531         if (callback == NULL)
 532         {
 533                 return ERROR_INVALID_ARGUMENTS;
 534         }
 535
 536         while (c)
 537         {
 538                 target_event_callback_t *next = c->next;
 539                 if ((c->callback == callback) && (c->priv == priv))
 540                 {
 541                         *p = next;
 542                         free(c);
 543                         return ERROR_OK;
 544                 }
 545                 else
 546                         p = &(c->next);
 547                 c = next;
 548         }
 549
 550         return ERROR_OK;
 551 }
 552
 553 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 554 {
 555         target_timer_callback_t **p = &target_timer_callbacks;
 556         target_timer_callback_t *c = target_timer_callbacks;
 557
 558         if (callback == NULL)
 559         {
 560                 return ERROR_INVALID_ARGUMENTS;
 561         }
 562
 563         while (c)
 564         {
 565                 target_timer_callback_t *next = c->next;
 566                 if ((c->callback == callback) && (c->priv == priv))
 567                 {
 568                         *p = next;
 569                         free(c);
 570                         return ERROR_OK;
 571                 }
 572                 else
 573                         p = &(c->next);
 574                 c = next;
 575         }
 576
 577         return ERROR_OK;
 578 }
 579
 580 int target_call_event_callbacks(target_t *target, enum target_event event)
 581 {
 582         target_event_callback_t *callback = target_event_callbacks;
 583         target_event_callback_t *next_callback;
 584
 585         LOG_DEBUG("target event %i", event);
 586
 587         while (callback)
 588         {
 589                 next_callback = callback->next;
 590                 callback->callback(target, event, callback->priv);
 591                 callback = next_callback;
 592         }
 593
 594         return ERROR_OK;
 595 }
 596
 597 static int target_call_timer_callbacks_check_time(int checktime)
 598 {
 599         target_timer_callback_t *callback = target_timer_callbacks;
 600         target_timer_callback_t *next_callback;
 601         struct timeval now;
 602
 603         gettimeofday(&now, NULL);
 604
 605         while (callback)
 606         {
 607                 next_callback = callback->next;
 608
 609                 if ((!checktime&&callback->periodic)||
 610                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 611                                                 || (now.tv_sec > callback->when.tv_sec)))
 612                 {
 613                         callback->callback(callback->priv);
 614                         if (callback->periodic)
 615                         {
 616                                 int time_ms = callback->time_ms;
 617                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 618                                 time_ms -= (time_ms % 1000);
 619                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 620                                 if (callback->when.tv_usec > 1000000)
 621                                 {
 622                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 623                                         callback->when.tv_sec += 1;
 624                                 }
 625                         }
 626                         else
 627                                 target_unregister_timer_callback(callback->callback, callback->priv);
 628                 }
 629
 630                 callback = next_callback;
 631         }
 632
 633         return ERROR_OK;
 634 }
 635
 636 int target_call_timer_callbacks()
 637 {
 638         return target_call_timer_callbacks_check_time(1);
 639 }
 640
 641 /* invoke periodic callbacks immediately */
 642 int target_call_timer_callbacks_now()
 643 {
 644         return target_call_timer_callbacks(0);
 645 }
 646
 647
 648 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 649 {
 650         working_area_t *c = target->working_areas;
 651         working_area_t *new_wa = NULL;
 652
 653         /* Reevaluate working area address based on MMU state*/
 654         if (target->working_areas == NULL)
 655         {
 656                 int retval;
 657                 int enabled;
 658                 retval = target->type->mmu(target, &enabled);
 659                 if (retval != ERROR_OK)
 660                 {
 661                         return retval;
 662                 }
 663                 if (enabled)
 664                 {
 665                         target->working_area = target->working_area_virt;
 666                 }
 667                 else
 668                 {
 669                         target->working_area = target->working_area_phys;
 670                 }
 671         }
 672
 673         /* only allocate multiples of 4 byte */
 674         if (size % 4)
 675         {
 676                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 677                 size = CEIL(size, 4);
 678         }
 679
 680         /* see if there's already a matching working area */
 681         while (c)
 682         {
 683                 if ((c->free) && (c->size == size))
 684                 {
 685                         new_wa = c;
 686                         break;
 687                 }
 688                 c = c->next;
 689         }
 690
 691         /* if not, allocate a new one */
 692         if (!new_wa)
 693         {
 694                 working_area_t **p = &target->working_areas;
 695                 u32 first_free = target->working_area;
 696                 u32 free_size = target->working_area_size;
 697
 698                 LOG_DEBUG("allocating new working area");
 699
 700                 c = target->working_areas;
 701                 while (c)
 702                 {
 703                         first_free += c->size;
 704                         free_size -= c->size;
 705                         p = &c->next;
 706                         c = c->next;
 707                 }
 708
 709                 if (free_size < size)
 710                 {
 711                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 712                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 713                 }
 714
 715                 new_wa = malloc(sizeof(working_area_t));
 716                 new_wa->next = NULL;
 717                 new_wa->size = size;
 718                 new_wa->address = first_free;
 719
 720                 if (target->backup_working_area)
 721                 {
 722                         new_wa->backup = malloc(new_wa->size);
 723                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 724                 }
 725                 else
 726                 {
 727                         new_wa->backup = NULL;
 728                 }
 729
 730                 /* put new entry in list */
 731                 *p = new_wa;
 732         }
 733
 734         /* mark as used, and return the new (reused) area */
 735         new_wa->free = 0;
 736         *area = new_wa;
 737
 738         /* user pointer */
 739         new_wa->user = area;
 740
 741         return ERROR_OK;
 742 }
 743
 744 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 745 {
 746         if (area->free)
 747                 return ERROR_OK;
 748
 749         if (restore&&target->backup_working_area)
 750                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 751
 752         area->free = 1;
 753
 754         /* mark user pointer invalid */
 755         *area->user = NULL;
 756         area->user = NULL;
 757
 758         return ERROR_OK;
 759 }
 760
 761 int target_free_working_area(struct target_s *target, working_area_t *area)
 762 {
 763         return target_free_working_area_restore(target, area, 1);
 764 }
 765
 766 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 767 {
 768         working_area_t *c = target->working_areas;
 769
 770         while (c)
 771         {
 772                 working_area_t *next = c->next;
 773                 target_free_working_area_restore(target, c, restore);
 774
 775                 if (c->backup)
 776                         free(c->backup);
 777
 778                 free(c);
 779
 780                 c = next;
 781         }
 782
 783         target->working_areas = NULL;
 784
 785         return ERROR_OK;
 786 }
 787
 788 int target_free_all_working_areas(struct target_s *target)
 789 {
 790         return target_free_all_working_areas_restore(target, 1);
 791 }
 792
 793 int target_register_commands(struct command_context_s *cmd_ctx)
 794 {
 795         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 796         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 797         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 798         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 799         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 800         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 801         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 802
 803         return ERROR_OK;
 804 }
 805
 806 int target_arch_state(struct target_s *target)
 807 {
 808         int retval;
 809         if (target==NULL)
 810         {
 811                 LOG_USER("No target has been configured");
 812                 return ERROR_OK;
 813         }
 814
 815         LOG_USER("target state: %s", target_state_strings[target->state]);
 816
 817         if (target->state!=TARGET_HALTED)
 818                 return ERROR_OK;
 819
 820         retval=target->type->arch_state(target);
 821         return retval;
 822 }
 823
 824 /* Single aligned words are guaranteed to use 16 or 32 bit access
 825  * mode respectively, otherwise data is handled as quickly as
 826  * possible
 827  */
 828 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 829 {
 830         int retval;
 831
 832         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 833
 834         if (((address % 2) == 0) && (size == 2))
 835         {
 836                 return target->type->write_memory(target, address, 2, 1, buffer);
 837         }
 838
 839         /* handle unaligned head bytes */
 840         if (address % 4)
 841         {
 842                 int unaligned = 4 - (address % 4);
 843
 844                 if (unaligned > size)
 845                         unaligned = size;
 846
 847                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 848                         return retval;
 849
 850                 buffer += unaligned;
 851                 address += unaligned;
 852                 size -= unaligned;
 853         }
 854
 855         /* handle aligned words */
 856         if (size >= 4)
 857         {
 858                 int aligned = size - (size % 4);
 859
 860                 /* use bulk writes above a certain limit. This may have to be changed */
 861                 if (aligned > 128)
 862                 {
 863                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 864                                 return retval;
 865                 }
 866                 else
 867                 {
 868                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 869                                 return retval;
 870                 }
 871
 872                 buffer += aligned;
 873                 address += aligned;
 874                 size -= aligned;
 875         }
 876
 877         /* handle tail writes of less than 4 bytes */
 878         if (size > 0)
 879         {
 880                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 881                         return retval;
 882         }
 883
 884         return ERROR_OK;
 885 }
 886
 887
 888 /* Single aligned words are guaranteed to use 16 or 32 bit access
 889  * mode respectively, otherwise data is handled as quickly as
 890  * possible
 891  */
 892 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 893 {
 894         int retval;
 895
 896         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 897
 898         if (((address % 2) == 0) && (size == 2))
 899         {
 900                 return target->type->read_memory(target, address, 2, 1, buffer);
 901         }
 902
 903         /* handle unaligned head bytes */
 904         if (address % 4)
 905         {
 906                 int unaligned = 4 - (address % 4);
 907
 908                 if (unaligned > size)
 909                         unaligned = size;
 910
 911                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 912                         return retval;
 913
 914                 buffer += unaligned;
 915                 address += unaligned;
 916                 size -= unaligned;
 917         }
 918
 919         /* handle aligned words */
 920         if (size >= 4)
 921         {
 922                 int aligned = size - (size % 4);
 923
 924                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 925                         return retval;
 926
 927                 buffer += aligned;
 928                 address += aligned;
 929                 size -= aligned;
 930         }
 931
 932         /* handle tail writes of less than 4 bytes */
 933         if (size > 0)
 934         {
 935                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 936                         return retval;
 937         }
 938
 939         return ERROR_OK;
 940 }
 941
 942 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
 943 {
 944         u8 *buffer;
 945         int retval;
 946         int i;
 947         u32 checksum = 0;
 948
 949         if ((retval = target->type->checksum_memory(target, address,
 950                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
 951         {
 952                 buffer = malloc(size);
 953                 if (buffer == NULL)
 954                 {
 955                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
 956                         return ERROR_INVALID_ARGUMENTS;
 957                 }
 958                 retval = target_read_buffer(target, address, size, buffer);
 959                 if (retval != ERROR_OK)
 960                 {
 961                         free(buffer);
 962                         return retval;
 963                 }
 964
 965                 /* convert to target endianess */
 966                 for (i = 0; i < (size/sizeof(u32)); i++)
 967                 {
 968                         u32 target_data;
 969                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
 970                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
 971                 }
 972
 973                 retval = image_calculate_checksum( buffer, size, &checksum );
 974                 free(buffer);
 975         }
 976
 977         *crc = checksum;
 978
 979         return retval;
 980 }
 981
 982 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 983 {
 984         u8 value_buf[4];
 985
 986         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 987
 988         if (retval == ERROR_OK)
 989         {
 990                 *value = target_buffer_get_u32(target, value_buf);
 991                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 992         }
 993         else
 994         {
 995                 *value = 0x0;
 996                 LOG_DEBUG("address: 0x%8.8x failed", address);
 997         }
 998
 999         return retval;
1000 }
1001
1002 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1003 {
1004         u8 value_buf[2];
1005
1006         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1007
1008         if (retval == ERROR_OK)
1009         {
1010                 *value = target_buffer_get_u16(target, value_buf);
1011                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1012         }
1013         else
1014         {
1015                 *value = 0x0;
1016                 LOG_DEBUG("address: 0x%8.8x failed", address);
1017         }
1018
1019         return retval;
1020 }
1021
1022 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1023 {
1024         int retval = target->type->read_memory(target, address, 1, 1, value);
1025
1026         if (retval == ERROR_OK)
1027         {
1028                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1029         }
1030         else
1031         {
1032                 *value = 0x0;
1033                 LOG_DEBUG("address: 0x%8.8x failed", address);
1034         }
1035
1036         return retval;
1037 }
1038
1039 int target_write_u32(struct target_s *target, u32 address, u32 value)
1040 {
1041         int retval;
1042         u8 value_buf[4];
1043
1044         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1045
1046         target_buffer_set_u32(target, value_buf, value);
1047         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1048         {
1049                 LOG_DEBUG("failed: %i", retval);
1050         }
1051
1052         return retval;
1053 }
1054
1055 int target_write_u16(struct target_s *target, u32 address, u16 value)
1056 {
1057         int retval;
1058         u8 value_buf[2];
1059
1060         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1061
1062         target_buffer_set_u16(target, value_buf, value);
1063         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1064         {
1065                 LOG_DEBUG("failed: %i", retval);
1066         }
1067
1068         return retval;
1069 }
1070
1071 int target_write_u8(struct target_s *target, u32 address, u8 value)
1072 {
1073         int retval;
1074
1075         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1076
1077         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1078         {
1079                 LOG_DEBUG("failed: %i", retval);
1080         }
1081
1082         return retval;
1083 }
1084
1085 int target_register_user_commands(struct command_context_s *cmd_ctx)
1086 {
1087         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1088         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1089         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1090         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1091         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1092         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1093         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1094         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1095
1096         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1097         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1098         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1099
1100         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1101         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1102         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1103
1104         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1105         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1106         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1107         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1108
1109         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1110         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1111         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1112         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1113         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1114
1115         target_request_register_commands(cmd_ctx);
1116         trace_register_commands(cmd_ctx);
1117
1118         return ERROR_OK;
1119 }
1120
1121 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1122 {
1123         target_t *target = targets;
1124         int count = 0;
1125
1126         if (argc == 1)
1127         {
1128                 int num = strtoul(args[0], NULL, 0);
1129
1130                 while (target)
1131                 {
1132                         count++;
1133                         target = target->next;
1134                 }
1135
1136                 if (num < count)
1137                         cmd_ctx->current_target = num;
1138                 else
1139                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1140
1141                 return ERROR_OK;
1142         }
1143
1144         while (target)
1145         {
1146                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1147                 target = target->next;
1148         }
1149
1150         return ERROR_OK;
1151 }
1152
1153 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1154 {
1155         int i;
1156         int found = 0;
1157
1158         if (argc < 3)
1159         {
1160                 return ERROR_COMMAND_SYNTAX_ERROR;
1161         }
1162
1163         /* search for the specified target */
1164         if (args[0] && (args[0][0] != 0))
1165         {
1166                 for (i = 0; target_types[i]; i++)
1167                 {
1168                         if (strcmp(args[0], target_types[i]->name) == 0)
1169                         {
1170                                 target_t **last_target_p = &targets;
1171
1172                                 /* register target specific commands */
1173                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1174                                 {
1175                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1176                                         exit(-1);
1177                                 }
1178
1179                                 if (*last_target_p)
1180                                 {
1181                                         while ((*last_target_p)->next)
1182                                                 last_target_p = &((*last_target_p)->next);
1183                                         last_target_p = &((*last_target_p)->next);
1184                                 }
1185
1186                                 *last_target_p = malloc(sizeof(target_t));
1187
1188                                 (*last_target_p)->type = target_types[i];
1189
1190                                 if (strcmp(args[1], "big") == 0)
1191                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1192                                 else if (strcmp(args[1], "little") == 0)
1193                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1194                                 else
1195                                 {
1196                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1197                                         return ERROR_COMMAND_SYNTAX_ERROR;
1198                                 }
1199
1200                                 /* what to do on a target reset */
1201                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1202                                 if (strcmp(args[2], "reset_halt") == 0)
1203                                         (*last_target_p)->reset_mode = RESET_HALT;
1204                                 else if (strcmp(args[2], "reset_run") == 0)
1205                                         (*last_target_p)->reset_mode = RESET_RUN;
1206                                 else if (strcmp(args[2], "reset_init") == 0)
1207                                         (*last_target_p)->reset_mode = RESET_INIT;
1208                                 else if (strcmp(args[2], "run_and_halt") == 0)
1209                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1210                                 else if (strcmp(args[2], "run_and_init") == 0)
1211                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1212                                 else
1213                                 {
1214                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1215                                         args--;
1216                                         argc++;
1217                                 }
1218                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1219
1220                                 (*last_target_p)->reset_script = NULL;
1221                                 (*last_target_p)->post_halt_script = NULL;
1222                                 (*last_target_p)->pre_resume_script = NULL;
1223                                 (*last_target_p)->gdb_program_script = NULL;
1224
1225                                 (*last_target_p)->working_area = 0x0;
1226                                 (*last_target_p)->working_area_size = 0x0;
1227                                 (*last_target_p)->working_areas = NULL;
1228                                 (*last_target_p)->backup_working_area = 0;
1229
1230                                 (*last_target_p)->state = TARGET_UNKNOWN;
1231                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1232                                 (*last_target_p)->reg_cache = NULL;
1233                                 (*last_target_p)->breakpoints = NULL;
1234                                 (*last_target_p)->watchpoints = NULL;
1235                                 (*last_target_p)->next = NULL;
1236                                 (*last_target_p)->arch_info = NULL;
1237
1238                                 /* initialize trace information */
1239                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1240                                 (*last_target_p)->trace_info->num_trace_points = 0;
1241                                 (*last_target_p)->trace_info->trace_points_size = 0;
1242                                 (*last_target_p)->trace_info->trace_points = NULL;
1243                                 (*last_target_p)->trace_info->trace_history_size = 0;
1244                                 (*last_target_p)->trace_info->trace_history = NULL;
1245                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1246                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1247
1248                                 (*last_target_p)->dbgmsg = NULL;
1249                                 (*last_target_p)->dbg_msg_enabled = 0;
1250
1251                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1252
1253                                 found = 1;
1254                                 break;
1255                         }
1256                 }
1257         }
1258
1259         /* no matching target found */
1260         if (!found)
1261         {
1262                 LOG_ERROR("target '%s' not found", args[0]);
1263                 return ERROR_COMMAND_SYNTAX_ERROR;
1264         }
1265
1266         return ERROR_OK;
1267 }
1268
1269 /* usage: target_script <target#> <event> <script_file> */
1270 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1271 {
1272         target_t *target = NULL;
1273
1274         if (argc < 3)
1275         {
1276                 LOG_ERROR("incomplete target_script command");
1277                 return ERROR_COMMAND_SYNTAX_ERROR;
1278         }
1279
1280         target = get_target_by_num(strtoul(args[0], NULL, 0));
1281
1282         if (!target)
1283         {
1284                 return ERROR_COMMAND_SYNTAX_ERROR;
1285         }
1286
1287         if (strcmp(args[1], "reset") == 0)
1288         {
1289                 if (target->reset_script)
1290                         free(target->reset_script);
1291                 target->reset_script = strdup(args[2]);
1292         }
1293         else if (strcmp(args[1], "post_halt") == 0)
1294         {
1295                 if (target->post_halt_script)
1296                         free(target->post_halt_script);
1297                 target->post_halt_script = strdup(args[2]);
1298         }
1299         else if (strcmp(args[1], "pre_resume") == 0)
1300         {
1301                 if (target->pre_resume_script)
1302                         free(target->pre_resume_script);
1303                 target->pre_resume_script = strdup(args[2]);
1304         }
1305         else if (strcmp(args[1], "gdb_program_config") == 0)
1306         {
1307                 if (target->gdb_program_script)
1308                         free(target->gdb_program_script);
1309                 target->gdb_program_script = strdup(args[2]);
1310         }
1311         else
1312         {
1313                 LOG_ERROR("unknown event type: '%s", args[1]);
1314                 return ERROR_COMMAND_SYNTAX_ERROR;
1315         }
1316
1317         return ERROR_OK;
1318 }
1319
1320 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1321 {
1322         target_t *target = NULL;
1323
1324         if (argc < 2)
1325         {
1326                 return ERROR_COMMAND_SYNTAX_ERROR;
1327         }
1328
1329         target = get_target_by_num(strtoul(args[0], NULL, 0));
1330         if (!target)
1331         {
1332                 return ERROR_COMMAND_SYNTAX_ERROR;
1333         }
1334
1335         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1336
1337         return ERROR_OK;
1338 }
1339
1340 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1341 {
1342         target_t *target = NULL;
1343
1344         if ((argc < 4) || (argc > 5))
1345         {
1346                 return ERROR_COMMAND_SYNTAX_ERROR;
1347         }
1348
1349         target = get_target_by_num(strtoul(args[0], NULL, 0));
1350         if (!target)
1351         {
1352                 return ERROR_COMMAND_SYNTAX_ERROR;
1353         }
1354         target_free_all_working_areas(target);
1355
1356         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1357         if (argc == 5)
1358         {
1359                 target->working_area_virt = strtoul(args[4], NULL, 0);
1360         }
1361         target->working_area_size = strtoul(args[2], NULL, 0);
1362
1363         if (strcmp(args[3], "backup") == 0)
1364         {
1365                 target->backup_working_area = 1;
1366         }
1367         else if (strcmp(args[3], "nobackup") == 0)
1368         {
1369                 target->backup_working_area = 0;
1370         }
1371         else
1372         {
1373                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1374                 return ERROR_COMMAND_SYNTAX_ERROR;
1375         }
1376
1377         return ERROR_OK;
1378 }
1379
1380
1381 /* process target state changes */
1382 int handle_target(void *priv)
1383 {
1384         int retval;
1385         target_t *target = targets;
1386
1387         while (target)
1388         {
1389                 /* only poll if target isn't already halted */
1390                 if (target->state != TARGET_HALTED)
1391                 {
1392                         if (target_continous_poll)
1393                                 if ((retval = target->type->poll(target)) != ERROR_OK)
1394                                 {
1395                                         LOG_ERROR("couldn't poll target(%d). It's due for a reset.", retval);
1396                                 }
1397                 }
1398
1399                 target = target->next;
1400         }
1401
1402         return ERROR_OK;
1403 }
1404
1405 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1406 {
1407         target_t *target;
1408         reg_t *reg = NULL;
1409         int count = 0;
1410         char *value;
1411
1412         LOG_DEBUG("-");
1413
1414         target = get_current_target(cmd_ctx);
1415
1416         /* list all available registers for the current target */
1417         if (argc == 0)
1418         {
1419                 reg_cache_t *cache = target->reg_cache;
1420
1421                 count = 0;
1422                 while(cache)
1423                 {
1424                         int i;
1425                         for (i = 0; i < cache->num_regs; i++)
1426                         {
1427                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1428                                 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);
1429                                 free(value);
1430                         }
1431                         cache = cache->next;
1432                 }
1433
1434                 return ERROR_OK;
1435         }
1436
1437         /* access a single register by its ordinal number */
1438         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1439         {
1440                 int num = strtoul(args[0], NULL, 0);
1441                 reg_cache_t *cache = target->reg_cache;
1442
1443                 count = 0;
1444                 while(cache)
1445                 {
1446                         int i;
1447                         for (i = 0; i < cache->num_regs; i++)
1448                         {
1449                                 if (count++ == num)
1450                                 {
1451                                         reg = &cache->reg_list[i];
1452                                         break;
1453                                 }
1454                         }
1455                         if (reg)
1456                                 break;
1457                         cache = cache->next;
1458                 }
1459
1460                 if (!reg)
1461                 {
1462                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1463                         return ERROR_OK;
1464                 }
1465         } else /* access a single register by its name */
1466         {
1467                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1468
1469                 if (!reg)
1470                 {
1471                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1472                         return ERROR_OK;
1473                 }
1474         }
1475
1476         /* display a register */
1477         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1478         {
1479                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1480                         reg->valid = 0;
1481
1482                 if (reg->valid == 0)
1483                 {
1484                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1485                         if (arch_type == NULL)
1486                         {
1487                                 LOG_ERROR("BUG: encountered unregistered arch type");
1488                                 return ERROR_OK;
1489                         }
1490                         arch_type->get(reg);
1491                 }
1492                 value = buf_to_str(reg->value, reg->size, 16);
1493                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1494                 free(value);
1495                 return ERROR_OK;
1496         }
1497
1498         /* set register value */
1499         if (argc == 2)
1500         {
1501                 u8 *buf = malloc(CEIL(reg->size, 8));
1502                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1503
1504                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1505                 if (arch_type == NULL)
1506                 {
1507                         LOG_ERROR("BUG: encountered unregistered arch type");
1508                         return ERROR_OK;
1509                 }
1510
1511                 arch_type->set(reg, buf);
1512
1513                 value = buf_to_str(reg->value, reg->size, 16);
1514                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1515                 free(value);
1516
1517                 free(buf);
1518
1519                 return ERROR_OK;
1520         }
1521
1522         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1523
1524         return ERROR_OK;
1525 }
1526
1527 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1528
1529 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1530 {
1531         target_t *target = get_current_target(cmd_ctx);
1532
1533         if (argc == 0)
1534         {
1535                 target->type->poll(target);
1536                 target_arch_state(target);
1537         }
1538         else
1539         {
1540                 if (strcmp(args[0], "on") == 0)
1541                 {
1542                         target_continous_poll = 1;
1543                 }
1544                 else if (strcmp(args[0], "off") == 0)
1545                 {
1546                         target_continous_poll = 0;
1547                 }
1548                 else
1549                 {
1550                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1551                 }
1552         }
1553
1554
1555         return ERROR_OK;
1556 }
1557
1558 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1559 {
1560         int ms = 5000;
1561
1562         if (argc > 0)
1563         {
1564                 char *end;
1565
1566                 ms = strtoul(args[0], &end, 0) * 1000;
1567                 if (*end)
1568                 {
1569                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1570                         return ERROR_OK;
1571                 }
1572         }
1573
1574         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1575 }
1576
1577 static void target_process_events(struct command_context_s *cmd_ctx)
1578 {
1579         target_t *target = get_current_target(cmd_ctx);
1580         target->type->poll(target);
1581         target_call_timer_callbacks_now();
1582 }
1583
1584 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1585 {
1586         int retval;
1587         struct timeval timeout, now;
1588         int once=1;
1589         gettimeofday(&timeout, NULL);
1590         timeval_add_time(&timeout, 0, ms * 1000);
1591
1592         target_t *target = get_current_target(cmd_ctx);
1593         for (;;)
1594         {
1595                 if ((retval=target->type->poll(target))!=ERROR_OK)
1596                         return retval;
1597                 target_call_timer_callbacks_now();
1598                 if (target->state == state)
1599                 {
1600                         break;
1601                 }
1602                 if (once)
1603                 {
1604                         once=0;
1605                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1606                 }
1607
1608                 gettimeofday(&now, NULL);
1609                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1610                 {
1611                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1612                         break;
1613                 }
1614         }
1615
1616         return ERROR_OK;
1617 }
1618
1619 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1620 {
1621         int retval;
1622         target_t *target = get_current_target(cmd_ctx);
1623
1624         LOG_DEBUG("-");
1625
1626         if ((retval = target->type->halt(target)) != ERROR_OK)
1627         {
1628                 return retval;
1629         }
1630
1631         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1632 }
1633
1634
1635 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1636 {
1637         target_t *target = get_current_target(cmd_ctx);
1638
1639         LOG_USER("requesting target halt and executing a soft reset");
1640
1641         target->type->soft_reset_halt(target);
1642
1643         return ERROR_OK;
1644 }
1645
1646 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1647 {
1648         target_t *target = get_current_target(cmd_ctx);
1649         enum target_reset_mode reset_mode = target->reset_mode;
1650         enum target_reset_mode save = target->reset_mode;
1651
1652         LOG_DEBUG("-");
1653
1654         if (argc >= 1)
1655         {
1656                 if (strcmp("run", args[0]) == 0)
1657                         reset_mode = RESET_RUN;
1658                 else if (strcmp("halt", args[0]) == 0)
1659                         reset_mode = RESET_HALT;
1660                 else if (strcmp("init", args[0]) == 0)
1661                         reset_mode = RESET_INIT;
1662                 else if (strcmp("run_and_halt", args[0]) == 0)
1663                 {
1664                         reset_mode = RESET_RUN_AND_HALT;
1665                         if (argc >= 2)
1666                         {
1667                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1668                         }
1669                 }
1670                 else if (strcmp("run_and_init", args[0]) == 0)
1671                 {
1672                         reset_mode = RESET_RUN_AND_INIT;
1673                         if (argc >= 2)
1674                         {
1675                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1676                         }
1677                 }
1678                 else
1679                 {
1680                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1681                         return ERROR_OK;
1682                 }
1683         }
1684
1685         /* temporarily modify mode of current reset target */
1686         target->reset_mode = reset_mode;
1687
1688         /* reset *all* targets */
1689         target_process_reset(cmd_ctx);
1690
1691         /* Restore default reset mode for this target */
1692     target->reset_mode = save;
1693
1694         return ERROR_OK;
1695 }
1696
1697 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1698 {
1699         int retval;
1700         target_t *target = get_current_target(cmd_ctx);
1701
1702         if (argc == 0)
1703                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1704         else if (argc == 1)
1705                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1706         else
1707         {
1708                 return ERROR_COMMAND_SYNTAX_ERROR;
1709         }
1710
1711         target_process_events(cmd_ctx);
1712
1713         return retval;
1714 }
1715
1716 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1717 {
1718         target_t *target = get_current_target(cmd_ctx);
1719
1720         LOG_DEBUG("-");
1721
1722         if (argc == 0)
1723                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1724
1725         if (argc == 1)
1726                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1727
1728         return ERROR_OK;
1729 }
1730
1731 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1732 {
1733         const int line_bytecnt = 32;
1734         int count = 1;
1735         int size = 4;
1736         u32 address = 0;
1737         int line_modulo;
1738         int i;
1739
1740         char output[128];
1741         int output_len;
1742
1743         int retval;
1744
1745         u8 *buffer;
1746         target_t *target = get_current_target(cmd_ctx);
1747
1748         if (argc < 1)
1749                 return ERROR_OK;
1750
1751         if (argc == 2)
1752                 count = strtoul(args[1], NULL, 0);
1753
1754         address = strtoul(args[0], NULL, 0);
1755
1756
1757         switch (cmd[2])
1758         {
1759                 case 'w':
1760                         size = 4; line_modulo = line_bytecnt / 4;
1761                         break;
1762                 case 'h':
1763                         size = 2; line_modulo = line_bytecnt / 2;
1764                         break;
1765                 case 'b':
1766                         size = 1; line_modulo = line_bytecnt / 1;
1767                         break;
1768                 default:
1769                         return ERROR_OK;
1770         }
1771
1772         buffer = calloc(count, size);
1773         retval  = target->type->read_memory(target, address, size, count, buffer);
1774         if (retval == ERROR_OK)
1775         {
1776                 output_len = 0;
1777
1778                 for (i = 0; i < count; i++)
1779                 {
1780                         if (i%line_modulo == 0)
1781                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1782
1783                         switch (size)
1784                         {
1785                                 case 4:
1786                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1787                                         break;
1788                                 case 2:
1789                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1790                                         break;
1791                                 case 1:
1792                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1793                                         break;
1794                         }
1795
1796                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1797                         {
1798                                 command_print(cmd_ctx, output);
1799                                 output_len = 0;
1800                         }
1801                 }
1802         } else
1803         {
1804                 LOG_ERROR("Failure examining memory");
1805         }
1806
1807         free(buffer);
1808
1809         return ERROR_OK;
1810 }
1811
1812 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1813 {
1814         u32 address = 0;
1815         u32 value = 0;
1816         int count = 1;
1817         int i;
1818         int wordsize;
1819         target_t *target = get_current_target(cmd_ctx);
1820         u8 value_buf[4];
1821
1822          if ((argc < 2) || (argc > 3))
1823                 return ERROR_COMMAND_SYNTAX_ERROR;
1824
1825         address = strtoul(args[0], NULL, 0);
1826         value = strtoul(args[1], NULL, 0);
1827         if (argc == 3)
1828                 count = strtoul(args[2], NULL, 0);
1829
1830
1831         switch (cmd[2])
1832         {
1833                 case 'w':
1834                         wordsize = 4;
1835                         target_buffer_set_u32(target, value_buf, value);
1836                         break;
1837                 case 'h':
1838                         wordsize = 2;
1839                         target_buffer_set_u16(target, value_buf, value);
1840                         break;
1841                 case 'b':
1842                         wordsize = 1;
1843                         value_buf[0] = value;
1844                         break;
1845                 default:
1846                         return ERROR_COMMAND_SYNTAX_ERROR;
1847         }
1848         for (i=0; i<count; i++)
1849         {
1850                 int retval;
1851                 switch (wordsize)
1852                 {
1853                         case 4:
1854                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1855                                 break;
1856                         case 2:
1857                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1858                                 break;
1859                         case 1:
1860                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
1861                         break;
1862                         default:
1863                         return ERROR_OK;
1864                 }
1865                 if (retval!=ERROR_OK)
1866                 {
1867                         return retval;
1868                 }
1869         }
1870
1871         return ERROR_OK;
1872
1873 }
1874
1875 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1876 {
1877         u8 *buffer;
1878         u32 buf_cnt;
1879         u32 image_size;
1880         int i;
1881         int retval;
1882
1883         image_t image;
1884
1885         duration_t duration;
1886         char *duration_text;
1887
1888         target_t *target = get_current_target(cmd_ctx);
1889
1890         if (argc < 1)
1891         {
1892                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1893                 return ERROR_OK;
1894         }
1895
1896         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1897         if (argc >= 2)
1898         {
1899                 image.base_address_set = 1;
1900                 image.base_address = strtoul(args[1], NULL, 0);
1901         }
1902         else
1903         {
1904                 image.base_address_set = 0;
1905         }
1906
1907         image.start_address_set = 0;
1908
1909         duration_start_measure(&duration);
1910
1911         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1912         {
1913                 return ERROR_OK;
1914         }
1915
1916         image_size = 0x0;
1917         retval = ERROR_OK;
1918         for (i = 0; i < image.num_sections; i++)
1919         {
1920                 buffer = malloc(image.sections[i].size);
1921                 if (buffer == NULL)
1922                 {
1923                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1924                         break;
1925                 }
1926
1927                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1928                 {
1929                         free(buffer);
1930                         break;
1931                 }
1932                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
1933                 {
1934                         free(buffer);
1935                         break;
1936                 }
1937                 image_size += buf_cnt;
1938                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1939
1940                 free(buffer);
1941         }
1942
1943         duration_stop_measure(&duration, &duration_text);
1944         if (retval==ERROR_OK)
1945         {
1946                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1947         }
1948         free(duration_text);
1949
1950         image_close(&image);
1951
1952         return retval;
1953
1954 }
1955
1956 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1957 {
1958         fileio_t fileio;
1959
1960         u32 address;
1961         u32 size;
1962         u8 buffer[560];
1963         int retval=ERROR_OK;
1964
1965         duration_t duration;
1966         char *duration_text;
1967
1968         target_t *target = get_current_target(cmd_ctx);
1969
1970         if (argc != 3)
1971         {
1972                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1973                 return ERROR_OK;
1974         }
1975
1976         address = strtoul(args[1], NULL, 0);
1977         size = strtoul(args[2], NULL, 0);
1978
1979         if ((address & 3) || (size & 3))
1980         {
1981                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1982                 return ERROR_OK;
1983         }
1984
1985         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
1986         {
1987                 return ERROR_OK;
1988         }
1989
1990         duration_start_measure(&duration);
1991
1992         while (size > 0)
1993         {
1994                 u32 size_written;
1995                 u32 this_run_size = (size > 560) ? 560 : size;
1996
1997                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1998                 if (retval != ERROR_OK)
1999                 {
2000                         break;
2001                 }
2002
2003                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2004                 if (retval != ERROR_OK)
2005                 {
2006                         break;
2007                 }
2008
2009                 size -= this_run_size;
2010                 address += this_run_size;
2011         }
2012
2013         fileio_close(&fileio);
2014
2015         duration_stop_measure(&duration, &duration_text);
2016         if (retval==ERROR_OK)
2017         {
2018                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2019         }
2020         free(duration_text);
2021
2022         return ERROR_OK;
2023 }
2024
2025 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2026 {
2027         u8 *buffer;
2028         u32 buf_cnt;
2029         u32 image_size;
2030         int i;
2031         int retval;
2032         u32 checksum = 0;
2033         u32 mem_checksum = 0;
2034
2035         image_t image;
2036
2037         duration_t duration;
2038         char *duration_text;
2039
2040         target_t *target = get_current_target(cmd_ctx);
2041
2042         if (argc < 1)
2043         {
2044                 return ERROR_COMMAND_SYNTAX_ERROR;
2045         }
2046
2047         if (!target)
2048         {
2049                 LOG_ERROR("no target selected");
2050                 return ERROR_FAIL;
2051         }
2052
2053         duration_start_measure(&duration);
2054
2055         if (argc >= 2)
2056         {
2057                 image.base_address_set = 1;
2058                 image.base_address = strtoul(args[1], NULL, 0);
2059         }
2060         else
2061         {
2062                 image.base_address_set = 0;
2063                 image.base_address = 0x0;
2064         }
2065
2066         image.start_address_set = 0;
2067
2068         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2069         {
2070                 return retval;
2071         }
2072
2073         image_size = 0x0;
2074         retval=ERROR_OK;
2075         for (i = 0; i < image.num_sections; i++)
2076         {
2077                 buffer = malloc(image.sections[i].size);
2078                 if (buffer == NULL)
2079                 {
2080                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2081                         break;
2082                 }
2083                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2084                 {
2085                         free(buffer);
2086                         break;
2087                 }
2088
2089                 /* calculate checksum of image */
2090                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2091
2092                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2093                 if( retval != ERROR_OK )
2094                 {
2095                         free(buffer);
2096                         break;
2097                 }
2098
2099                 if( checksum != mem_checksum )
2100                 {
2101                         /* failed crc checksum, fall back to a binary compare */
2102                         u8 *data;
2103
2104                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2105
2106                         data = (u8*)malloc(buf_cnt);
2107
2108                         /* Can we use 32bit word accesses? */
2109                         int size = 1;
2110                         int count = buf_cnt;
2111                         if ((count % 4) == 0)
2112                         {
2113                                 size *= 4;
2114                                 count /= 4;
2115                         }
2116                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2117                         if (retval == ERROR_OK)
2118                         {
2119                                 int t;
2120                                 for (t = 0; t < buf_cnt; t++)
2121                                 {
2122                                         if (data[t] != buffer[t])
2123                                         {
2124                                                 command_print(cmd_ctx, "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", t + image.sections[i].base_address, data[t], buffer[t]);
2125                                                 free(data);
2126                                                 free(buffer);
2127                                                 retval=ERROR_FAIL;
2128                                                 goto done;
2129                                         }
2130                                 }
2131                         }
2132
2133                         free(data);
2134                 }
2135
2136                 free(buffer);
2137                 image_size += buf_cnt;
2138         }
2139 done:
2140         duration_stop_measure(&duration, &duration_text);
2141         if (retval==ERROR_OK)
2142         {
2143                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2144         }
2145         free(duration_text);
2146
2147         image_close(&image);
2148
2149         return retval;
2150 }
2151
2152 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2153 {
2154         int retval;
2155         target_t *target = get_current_target(cmd_ctx);
2156
2157         if (argc == 0)
2158         {
2159                 breakpoint_t *breakpoint = target->breakpoints;
2160
2161                 while (breakpoint)
2162                 {
2163                         if (breakpoint->type == BKPT_SOFT)
2164                         {
2165                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2166                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2167                                 free(buf);
2168                         }
2169                         else
2170                         {
2171                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2172                         }
2173                         breakpoint = breakpoint->next;
2174                 }
2175         }
2176         else if (argc >= 2)
2177         {
2178                 int hw = BKPT_SOFT;
2179                 u32 length = 0;
2180
2181                 length = strtoul(args[1], NULL, 0);
2182
2183                 if (argc >= 3)
2184                         if (strcmp(args[2], "hw") == 0)
2185                                 hw = BKPT_HARD;
2186
2187                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2188                 {
2189                         LOG_ERROR("Failure setting breakpoints");
2190                 }
2191                 else
2192                 {
2193                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2194                 }
2195         }
2196         else
2197         {
2198                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2199         }
2200
2201         return ERROR_OK;
2202 }
2203
2204 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2205 {
2206         target_t *target = get_current_target(cmd_ctx);
2207
2208         if (argc > 0)
2209                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2210
2211         return ERROR_OK;
2212 }
2213
2214 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2215 {
2216         target_t *target = get_current_target(cmd_ctx);
2217         int retval;
2218
2219         if (argc == 0)
2220         {
2221                 watchpoint_t *watchpoint = target->watchpoints;
2222
2223                 while (watchpoint)
2224                 {
2225                         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);
2226                         watchpoint = watchpoint->next;
2227                 }
2228         }
2229         else if (argc >= 2)
2230         {
2231                 enum watchpoint_rw type = WPT_ACCESS;
2232                 u32 data_value = 0x0;
2233                 u32 data_mask = 0xffffffff;
2234
2235                 if (argc >= 3)
2236                 {
2237                         switch(args[2][0])
2238                         {
2239                                 case 'r':
2240                                         type = WPT_READ;
2241                                         break;
2242                                 case 'w':
2243                                         type = WPT_WRITE;
2244                                         break;
2245                                 case 'a':
2246                                         type = WPT_ACCESS;
2247                                         break;
2248                                 default:
2249                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2250                                         return ERROR_OK;
2251                         }
2252                 }
2253                 if (argc >= 4)
2254                 {
2255                         data_value = strtoul(args[3], NULL, 0);
2256                 }
2257                 if (argc >= 5)
2258                 {
2259                         data_mask = strtoul(args[4], NULL, 0);
2260                 }
2261
2262                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2263                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2264                 {
2265                         LOG_ERROR("Failure setting breakpoints");
2266                 }
2267         }
2268         else
2269         {
2270                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2271         }
2272
2273         return ERROR_OK;
2274 }
2275
2276 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2277 {
2278         target_t *target = get_current_target(cmd_ctx);
2279
2280         if (argc > 0)
2281                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2282
2283         return ERROR_OK;
2284 }
2285
2286 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2287 {
2288         int retval;
2289         target_t *target = get_current_target(cmd_ctx);
2290         u32 va;
2291         u32 pa;
2292
2293         if (argc != 1)
2294         {
2295                 return ERROR_COMMAND_SYNTAX_ERROR;
2296         }
2297         va = strtoul(args[0], NULL, 0);
2298
2299         retval = target->type->virt2phys(target, va, &pa);
2300         if (retval == ERROR_OK)
2301         {
2302                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2303         }
2304         else
2305         {
2306                 /* lower levels will have logged a detailed error which is
2307                  * forwarded to telnet/GDB session.
2308                  */
2309         }
2310         return retval;
2311 }
2312 static void writeLong(FILE *f, int l)
2313 {
2314         int i;
2315         for (i=0; i<4; i++)
2316         {
2317                 char c=(l>>(i*8))&0xff;
2318                 fwrite(&c, 1, 1, f);
2319         }
2320
2321 }
2322 static void writeString(FILE *f, char *s)
2323 {
2324         fwrite(s, 1, strlen(s), f);
2325 }
2326
2327
2328
2329 // Dump a gmon.out histogram file.
2330 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2331 {
2332         int i;
2333         FILE *f=fopen(filename, "w");
2334         if (f==NULL)
2335                 return;
2336         fwrite("gmon", 1, 4, f);
2337         writeLong(f, 0x00000001); // Version
2338         writeLong(f, 0); // padding
2339         writeLong(f, 0); // padding
2340         writeLong(f, 0); // padding
2341
2342         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2343
2344         // figure out bucket size
2345         u32 min=samples[0];
2346         u32 max=samples[0];
2347         for (i=0; i<sampleNum; i++)
2348         {
2349                 if (min>samples[i])
2350                 {
2351                         min=samples[i];
2352                 }
2353                 if (max<samples[i])
2354                 {
2355                         max=samples[i];
2356                 }
2357         }
2358
2359         int addressSpace=(max-min+1);
2360
2361         static int const maxBuckets=256*1024; // maximum buckets.
2362         int length=addressSpace;
2363         if (length > maxBuckets)
2364         {
2365                 length=maxBuckets;
2366         }
2367         int *buckets=malloc(sizeof(int)*length);
2368         if (buckets==NULL)
2369         {
2370                 fclose(f);
2371                 return;
2372         }
2373         memset(buckets, 0, sizeof(int)*length);
2374         for (i=0; i<sampleNum;i++)
2375         {
2376                 u32 address=samples[i];
2377                 long long a=address-min;
2378                 long long b=length-1;
2379                 long long c=addressSpace-1;
2380                 int index=(a*b)/c; // danger!!!! int32 overflows
2381                 buckets[index]++;
2382         }
2383
2384         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2385         writeLong(f, min);                                      // low_pc
2386         writeLong(f, max);              // high_pc
2387         writeLong(f, length);           // # of samples
2388         writeLong(f, 64000000);                         // 64MHz
2389         writeString(f, "seconds");
2390         for (i=0; i<(15-strlen("seconds")); i++)
2391         {
2392                 fwrite("", 1, 1, f);  // padding
2393         }
2394         writeString(f, "s");
2395
2396 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2397
2398         char *data=malloc(2*length);
2399         if (data!=NULL)
2400         {
2401                 for (i=0; i<length;i++)
2402                 {
2403                         int val;
2404                         val=buckets[i];
2405                         if (val>65535)
2406                         {
2407                                 val=65535;
2408                         }
2409                         data[i*2]=val&0xff;
2410                         data[i*2+1]=(val>>8)&0xff;
2411                 }
2412                 free(buckets);
2413                 fwrite(data, 1, length*2, f);
2414                 free(data);
2415         } else
2416         {
2417                 free(buckets);
2418         }
2419
2420         fclose(f);
2421 }
2422
2423 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2424 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2425 {
2426         target_t *target = get_current_target(cmd_ctx);
2427         struct timeval timeout, now;
2428
2429         gettimeofday(&timeout, NULL);
2430         if (argc!=2)
2431         {
2432                 return ERROR_COMMAND_SYNTAX_ERROR;
2433         }
2434         char *end;
2435         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2436         if (*end)
2437         {
2438                 return ERROR_OK;
2439         }
2440
2441         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2442
2443         static const int maxSample=10000;
2444         u32 *samples=malloc(sizeof(u32)*maxSample);
2445         if (samples==NULL)
2446                 return ERROR_OK;
2447
2448         int numSamples=0;
2449         int retval=ERROR_OK;
2450         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2451         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2452
2453         for (;;)
2454         {
2455                 target->type->poll(target);
2456                 if (target->state == TARGET_HALTED)
2457                 {
2458                         u32 t=*((u32 *)reg->value);
2459                         samples[numSamples++]=t;
2460                         retval = target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2461                         target->type->poll(target);
2462                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2463                 } else if (target->state == TARGET_RUNNING)
2464                 {
2465                         // We want to quickly sample the PC.
2466                         target->type->halt(target);
2467                 } else
2468                 {
2469                         command_print(cmd_ctx, "Target not halted or running");
2470                         retval=ERROR_OK;
2471                         break;
2472                 }
2473                 if (retval!=ERROR_OK)
2474                 {
2475                         break;
2476                 }
2477
2478                 gettimeofday(&now, NULL);
2479                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2480                 {
2481                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2482                         target->type->poll(target);
2483                         if (target->state == TARGET_HALTED)
2484                         {
2485                                 target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2486                         }
2487                         target->type->poll(target);
2488                         writeGmon(samples, numSamples, args[1]);
2489                         command_print(cmd_ctx, "Wrote %s", args[1]);
2490                         break;
2491                 }
2492         }
2493         free(samples);
2494
2495         return ERROR_OK;
2496 }
2497