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

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26 #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_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56
  57 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60
  61 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  79 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  80
  81 /* targets
  82  */
  83 extern target_type_t arm7tdmi_target;
  84 extern target_type_t arm720t_target;
  85 extern target_type_t arm9tdmi_target;
  86 extern target_type_t arm920t_target;
  87 extern target_type_t arm966e_target;
  88 extern target_type_t arm926ejs_target;
  89 extern target_type_t feroceon_target;
  90 extern target_type_t xscale_target;
  91 extern target_type_t cortexm3_target;
  92 extern target_type_t arm11_target;
  93
  94 target_type_t *target_types[] =
  95 {
  96         &arm7tdmi_target,
  97         &arm9tdmi_target,
  98         &arm920t_target,
  99         &arm720t_target,
 100         &arm966e_target,
 101         &arm926ejs_target,
 102         &feroceon_target,
 103         &xscale_target,
 104         &cortexm3_target,
 105         &arm11_target,
 106         NULL,
 107 };
 108
 109 target_t *targets = NULL;
 110 target_event_callback_t *target_event_callbacks = NULL;
 111 target_timer_callback_t *target_timer_callbacks = NULL;
 112
 113 char *target_state_strings[] =
 114 {
 115         "unknown",
 116         "running",
 117         "halted",
 118         "reset",
 119         "debug_running",
 120 };
 121
 122 char *target_debug_reason_strings[] =
 123 {
 124         "debug request", "breakpoint", "watchpoint",
 125         "watchpoint and breakpoint", "single step",
 126         "target not halted", "undefined"
 127 };
 128
 129 char *target_endianess_strings[] =
 130 {
 131         "big endian",
 132         "little endian",
 133 };
 134
 135 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 136
 137 static int target_continous_poll = 1;
 138
 139 /* read a u32 from a buffer in target memory endianness */
 140 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 141 {
 142         if (target->endianness == TARGET_LITTLE_ENDIAN)
 143                 return le_to_h_u32(buffer);
 144         else
 145                 return be_to_h_u32(buffer);
 146 }
 147
 148 /* read a u16 from a buffer in target memory endianness */
 149 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 150 {
 151         if (target->endianness == TARGET_LITTLE_ENDIAN)
 152                 return le_to_h_u16(buffer);
 153         else
 154                 return be_to_h_u16(buffer);
 155 }
 156
 157 /* write a u32 to a buffer in target memory endianness */
 158 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 159 {
 160         if (target->endianness == TARGET_LITTLE_ENDIAN)
 161                 h_u32_to_le(buffer, value);
 162         else
 163                 h_u32_to_be(buffer, value);
 164 }
 165
 166 /* write a u16 to a buffer in target memory endianness */
 167 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 168 {
 169         if (target->endianness == TARGET_LITTLE_ENDIAN)
 170                 h_u16_to_le(buffer, value);
 171         else
 172                 h_u16_to_be(buffer, value);
 173 }
 174
 175 /* returns a pointer to the n-th configured target */
 176 target_t* get_target_by_num(int num)
 177 {
 178         target_t *target = targets;
 179         int i = 0;
 180
 181         while (target)
 182         {
 183                 if (num == i)
 184                         return target;
 185                 target = target->next;
 186                 i++;
 187         }
 188
 189         return NULL;
 190 }
 191
 192 int get_num_by_target(target_t *query_target)
 193 {
 194         target_t *target = targets;
 195         int i = 0;
 196
 197         while (target)
 198         {
 199                 if (target == query_target)
 200                         return i;
 201                 target = target->next;
 202                 i++;
 203         }
 204
 205         return -1;
 206 }
 207
 208 target_t* get_current_target(command_context_t *cmd_ctx)
 209 {
 210         target_t *target = get_target_by_num(cmd_ctx->current_target);
 211
 212         if (target == NULL)
 213         {
 214                 LOG_ERROR("BUG: current_target out of bounds");
 215                 exit(-1);
 216         }
 217
 218         return target;
 219 }
 220
 221 /* Process target initialization, when target entered debug out of reset
 222  * the handler is unregistered at the end of this function, so it's only called once
 223  */
 224 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 225 {
 226         FILE *script;
 227         struct command_context_s *cmd_ctx = priv;
 228
 229         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 230         {
 231                 target_unregister_event_callback(target_init_handler, priv);
 232
 233                 script = open_file_from_path(target->reset_script, "r");
 234                 if (!script)
 235                 {
 236                         LOG_ERROR("couldn't open script file %s", target->reset_script);
 237                                 return ERROR_OK;
 238                 }
 239
 240                 LOG_INFO("executing reset script '%s'", target->reset_script);
 241                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 242                 fclose(script);
 243
 244                 jtag_execute_queue();
 245         }
 246
 247         return ERROR_OK;
 248 }
 249
 250 int target_run_and_halt_handler(void *priv)
 251 {
 252         target_t *target = priv;
 253
 254         target->type->halt(target);
 255
 256         return ERROR_OK;
 257 }
 258
 259 int target_process_reset(struct command_context_s *cmd_ctx)
 260 {
 261         int retval = ERROR_OK;
 262         target_t *target;
 263         struct timeval timeout, now;
 264
 265         jtag->speed(jtag_speed);
 266
 267         /* prepare reset_halt where necessary */
 268         target = targets;
 269         while (target)
 270         {
 271                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 272                 {
 273                         switch (target->reset_mode)
 274                         {
 275                                 case RESET_HALT:
 276                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 277                                         target->reset_mode = RESET_RUN_AND_HALT;
 278                                         break;
 279                                 case RESET_INIT:
 280                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 281                                         target->reset_mode = RESET_RUN_AND_INIT;
 282                                         break;
 283                                 default:
 284                                         break;
 285                         }
 286                 }
 287                 target = target->next;
 288         }
 289
 290         target = targets;
 291         while (target)
 292         {
 293                 /* we have no idea what state the target is in, so we
 294                  * have to drop working areas
 295                  */
 296                 target_free_all_working_areas_restore(target, 0);
 297                 target->type->assert_reset(target);
 298                 target = target->next;
 299         }
 300         jtag_execute_queue();
 301
 302         /* request target halt if necessary, and schedule further action */
 303         target = targets;
 304         while (target)
 305         {
 306                 switch (target->reset_mode)
 307                 {
 308                         case RESET_RUN:
 309                                 /* nothing to do if target just wants to be run */
 310                                 break;
 311                         case RESET_RUN_AND_HALT:
 312                                 /* schedule halt */
 313                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 314                                 break;
 315                         case RESET_RUN_AND_INIT:
 316                                 /* schedule halt */
 317                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 318                                 target_register_event_callback(target_init_handler, cmd_ctx);
 319                                 break;
 320                         case RESET_HALT:
 321                                 target->type->halt(target);
 322                                 break;
 323                         case RESET_INIT:
 324                                 target->type->halt(target);
 325                                 target_register_event_callback(target_init_handler, cmd_ctx);
 326                                 break;
 327                         default:
 328                                 LOG_ERROR("BUG: unknown target->reset_mode");
 329                 }
 330                 target = target->next;
 331         }
 332
 333         target = targets;
 334         while (target)
 335         {
 336                 target->type->deassert_reset(target);
 337                 target = target->next;
 338         }
 339         jtag_execute_queue();
 340
 341         LOG_DEBUG("Waiting for halted stated as approperiate");
 342
 343         /* Wait for reset to complete, maximum 5 seconds. */
 344         gettimeofday(&timeout, NULL);
 345         timeval_add_time(&timeout, 5, 0);
 346         for(;;)
 347         {
 348                 gettimeofday(&now, NULL);
 349
 350                 target_call_timer_callbacks_now();
 351
 352                 target = targets;
 353                 while (target)
 354                 {
 355                         LOG_DEBUG("Polling target");
 356                         target->type->poll(target);
 357                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 358                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 359                                         (target->reset_mode == RESET_HALT) ||
 360                                         (target->reset_mode == RESET_INIT))
 361                         {
 362                                 if (target->state != TARGET_HALTED)
 363                                 {
 364                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 365                                         {
 366                                                 LOG_USER("Timed out waiting for halt after reset");
 367                                                 goto done;
 368                                         }
 369                                         /* this will send alive messages on e.g. GDB remote protocol. */
 370                                         usleep(500*1000);
 371                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 372                                         goto again;
 373                                 }
 374                         }
 375                         target = target->next;
 376                 }
 377                 /* All targets we're waiting for are halted */
 378                 break;
 379
 380                 again:;
 381         }
 382         done:
 383
 384
 385         /* We want any events to be processed before the prompt */
 386         target_call_timer_callbacks_now();
 387
 388         /* if we timed out we need to unregister these handlers */
 389         target = targets;
 390         while (target)
 391         {
 392                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 393                 target = target->next;
 394         }
 395         target_unregister_event_callback(target_init_handler, cmd_ctx);
 396
 397
 398         jtag->speed(jtag_speed_post_reset);
 399
 400         return retval;
 401 }
 402
 403 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 404 {
 405         *physical = virtual;
 406         return ERROR_OK;
 407 }
 408
 409 static int default_mmu(struct target_s *target, int *enabled)
 410 {
 411         *enabled = 0;
 412         return ERROR_OK;
 413 }
 414
 415 int target_init(struct command_context_s *cmd_ctx)
 416 {
 417         target_t *target = targets;
 418
 419         while (target)
 420         {
 421                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 422                 {
 423                         LOG_ERROR("target '%s' init failed", target->type->name);
 424                         exit(-1);
 425                 }
 426
 427                 /* Set up default functions if none are provided by target */
 428                 if (target->type->virt2phys == NULL)
 429                 {
 430                         target->type->virt2phys = default_virt2phys;
 431                 }
 432                 if (target->type->mmu == NULL)
 433                 {
 434                         target->type->mmu = default_mmu;
 435                 }
 436                 target = target->next;
 437         }
 438
 439         if (targets)
 440         {
 441                 target_register_user_commands(cmd_ctx);
 442                 target_register_timer_callback(handle_target, 100, 1, NULL);
 443         }
 444
 445         return ERROR_OK;
 446 }
 447
 448 int target_init_reset(struct command_context_s *cmd_ctx)
 449 {
 450         if (startup_mode == DAEMON_RESET)
 451                 target_process_reset(cmd_ctx);
 452
 453         return ERROR_OK;
 454 }
 455
 456 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 457 {
 458         target_event_callback_t **callbacks_p = &target_event_callbacks;
 459
 460         if (callback == NULL)
 461         {
 462                 return ERROR_INVALID_ARGUMENTS;
 463         }
 464
 465         if (*callbacks_p)
 466         {
 467                 while ((*callbacks_p)->next)
 468                         callbacks_p = &((*callbacks_p)->next);
 469                 callbacks_p = &((*callbacks_p)->next);
 470         }
 471
 472         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 473         (*callbacks_p)->callback = callback;
 474         (*callbacks_p)->priv = priv;
 475         (*callbacks_p)->next = NULL;
 476
 477         return ERROR_OK;
 478 }
 479
 480 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 481 {
 482         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 483         struct timeval now;
 484
 485         if (callback == NULL)
 486         {
 487                 return ERROR_INVALID_ARGUMENTS;
 488         }
 489
 490         if (*callbacks_p)
 491         {
 492                 while ((*callbacks_p)->next)
 493                         callbacks_p = &((*callbacks_p)->next);
 494                 callbacks_p = &((*callbacks_p)->next);
 495         }
 496
 497         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 498         (*callbacks_p)->callback = callback;
 499         (*callbacks_p)->periodic = periodic;
 500         (*callbacks_p)->time_ms = time_ms;
 501
 502         gettimeofday(&now, NULL);
 503         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 504         time_ms -= (time_ms % 1000);
 505         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 506         if ((*callbacks_p)->when.tv_usec > 1000000)
 507         {
 508                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 509                 (*callbacks_p)->when.tv_sec += 1;
 510         }
 511
 512         (*callbacks_p)->priv = priv;
 513         (*callbacks_p)->next = NULL;
 514
 515         return ERROR_OK;
 516 }
 517
 518 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 519 {
 520         target_event_callback_t **p = &target_event_callbacks;
 521         target_event_callback_t *c = target_event_callbacks;
 522
 523         if (callback == NULL)
 524         {
 525                 return ERROR_INVALID_ARGUMENTS;
 526         }
 527
 528         while (c)
 529         {
 530                 target_event_callback_t *next = c->next;
 531                 if ((c->callback == callback) && (c->priv == priv))
 532                 {
 533                         *p = next;
 534                         free(c);
 535                         return ERROR_OK;
 536                 }
 537                 else
 538                         p = &(c->next);
 539                 c = next;
 540         }
 541
 542         return ERROR_OK;
 543 }
 544
 545 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 546 {
 547         target_timer_callback_t **p = &target_timer_callbacks;
 548         target_timer_callback_t *c = target_timer_callbacks;
 549
 550         if (callback == NULL)
 551         {
 552                 return ERROR_INVALID_ARGUMENTS;
 553         }
 554
 555         while (c)
 556         {
 557                 target_timer_callback_t *next = c->next;
 558                 if ((c->callback == callback) && (c->priv == priv))
 559                 {
 560                         *p = next;
 561                         free(c);
 562                         return ERROR_OK;
 563                 }
 564                 else
 565                         p = &(c->next);
 566                 c = next;
 567         }
 568
 569         return ERROR_OK;
 570 }
 571
 572 int target_call_event_callbacks(target_t *target, enum target_event event)
 573 {
 574         target_event_callback_t *callback = target_event_callbacks;
 575         target_event_callback_t *next_callback;
 576
 577         LOG_DEBUG("target event %i", event);
 578
 579         while (callback)
 580         {
 581                 next_callback = callback->next;
 582                 callback->callback(target, event, callback->priv);
 583                 callback = next_callback;
 584         }
 585
 586         return ERROR_OK;
 587 }
 588
 589 static int target_call_timer_callbacks_check_time(int checktime)
 590 {
 591         target_timer_callback_t *callback = target_timer_callbacks;
 592         target_timer_callback_t *next_callback;
 593         struct timeval now;
 594
 595         gettimeofday(&now, NULL);
 596
 597         while (callback)
 598         {
 599                 next_callback = callback->next;
 600
 601                 if ((!checktime&&callback->periodic)||
 602                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 603                                                 || (now.tv_sec > callback->when.tv_sec)))
 604                 {
 605                         callback->callback(callback->priv);
 606                         if (callback->periodic)
 607                         {
 608                                 int time_ms = callback->time_ms;
 609                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 610                                 time_ms -= (time_ms % 1000);
 611                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 612                                 if (callback->when.tv_usec > 1000000)
 613                                 {
 614                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 615                                         callback->when.tv_sec += 1;
 616                                 }
 617                         }
 618                         else
 619                                 target_unregister_timer_callback(callback->callback, callback->priv);
 620                 }
 621
 622                 callback = next_callback;
 623         }
 624
 625         return ERROR_OK;
 626 }
 627
 628 int target_call_timer_callbacks()
 629 {
 630         return target_call_timer_callbacks_check_time(1);
 631 }
 632
 633 /* invoke periodic callbacks immediately */
 634 int target_call_timer_callbacks_now()
 635 {
 636         return target_call_timer_callbacks(0);
 637 }
 638
 639
 640 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 641 {
 642         working_area_t *c = target->working_areas;
 643         working_area_t *new_wa = NULL;
 644
 645         /* Reevaluate working area address based on MMU state*/
 646         if (target->working_areas == NULL)
 647         {
 648                 int retval;
 649                 int enabled;
 650                 retval = target->type->mmu(target, &enabled);
 651                 if (retval != ERROR_OK)
 652                 {
 653                         return retval;
 654                 }
 655                 if (enabled)
 656                 {
 657                         target->working_area = target->working_area_virt;
 658                 }
 659                 else
 660                 {
 661                         target->working_area = target->working_area_phys;
 662                 }
 663         }
 664
 665         /* only allocate multiples of 4 byte */
 666         if (size % 4)
 667         {
 668                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 669                 size = CEIL(size, 4);
 670         }
 671
 672         /* see if there's already a matching working area */
 673         while (c)
 674         {
 675                 if ((c->free) && (c->size == size))
 676                 {
 677                         new_wa = c;
 678                         break;
 679                 }
 680                 c = c->next;
 681         }
 682
 683         /* if not, allocate a new one */
 684         if (!new_wa)
 685         {
 686                 working_area_t **p = &target->working_areas;
 687                 u32 first_free = target->working_area;
 688                 u32 free_size = target->working_area_size;
 689
 690                 LOG_DEBUG("allocating new working area");
 691
 692                 c = target->working_areas;
 693                 while (c)
 694                 {
 695                         first_free += c->size;
 696                         free_size -= c->size;
 697                         p = &c->next;
 698                         c = c->next;
 699                 }
 700
 701                 if (free_size < size)
 702                 {
 703                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 704                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 705                 }
 706
 707                 new_wa = malloc(sizeof(working_area_t));
 708                 new_wa->next = NULL;
 709                 new_wa->size = size;
 710                 new_wa->address = first_free;
 711
 712                 if (target->backup_working_area)
 713                 {
 714                         new_wa->backup = malloc(new_wa->size);
 715                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 716                 }
 717                 else
 718                 {
 719                         new_wa->backup = NULL;
 720                 }
 721
 722                 /* put new entry in list */
 723                 *p = new_wa;
 724         }
 725
 726         /* mark as used, and return the new (reused) area */
 727         new_wa->free = 0;
 728         *area = new_wa;
 729
 730         /* user pointer */
 731         new_wa->user = area;
 732
 733         return ERROR_OK;
 734 }
 735
 736 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 737 {
 738         if (area->free)
 739                 return ERROR_OK;
 740
 741         if (restore&&target->backup_working_area)
 742                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 743
 744         area->free = 1;
 745
 746         /* mark user pointer invalid */
 747         *area->user = NULL;
 748         area->user = NULL;
 749
 750         return ERROR_OK;
 751 }
 752
 753 int target_free_working_area(struct target_s *target, working_area_t *area)
 754 {
 755         return target_free_working_area_restore(target, area, 1);
 756 }
 757
 758 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 759 {
 760         working_area_t *c = target->working_areas;
 761
 762         while (c)
 763         {
 764                 working_area_t *next = c->next;
 765                 target_free_working_area_restore(target, c, restore);
 766
 767                 if (c->backup)
 768                         free(c->backup);
 769
 770                 free(c);
 771
 772                 c = next;
 773         }
 774
 775         target->working_areas = NULL;
 776
 777         return ERROR_OK;
 778 }
 779
 780 int target_free_all_working_areas(struct target_s *target)
 781 {
 782         return target_free_all_working_areas_restore(target, 1);
 783 }
 784
 785 int target_register_commands(struct command_context_s *cmd_ctx)
 786 {
 787         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 788         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 789         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 790         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 791         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 792         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 793         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 794         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 795
 796         return ERROR_OK;
 797 }
 798
 799 int target_arch_state(struct target_s *target)
 800 {
 801         int retval;
 802         if (target==NULL)
 803         {
 804                 LOG_USER("No target has been configured");
 805                 return ERROR_OK;
 806         }
 807
 808         LOG_USER("target state: %s", target_state_strings[target->state]);
 809
 810         if (target->state!=TARGET_HALTED)
 811                 return ERROR_OK;
 812
 813         retval=target->type->arch_state(target);
 814         return retval;
 815 }
 816
 817 /* Single aligned words are guaranteed to use 16 or 32 bit access
 818  * mode respectively, otherwise data is handled as quickly as
 819  * possible
 820  */
 821 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 822 {
 823         int retval;
 824
 825         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 826
 827         if (((address % 2) == 0) && (size == 2))
 828         {
 829                 return target->type->write_memory(target, address, 2, 1, buffer);
 830         }
 831
 832         /* handle unaligned head bytes */
 833         if (address % 4)
 834         {
 835                 int unaligned = 4 - (address % 4);
 836
 837                 if (unaligned > size)
 838                         unaligned = size;
 839
 840                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 841                         return retval;
 842
 843                 buffer += unaligned;
 844                 address += unaligned;
 845                 size -= unaligned;
 846         }
 847
 848         /* handle aligned words */
 849         if (size >= 4)
 850         {
 851                 int aligned = size - (size % 4);
 852
 853                 /* use bulk writes above a certain limit. This may have to be changed */
 854                 if (aligned > 128)
 855                 {
 856                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 857                                 return retval;
 858                 }
 859                 else
 860                 {
 861                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 862                                 return retval;
 863                 }
 864
 865                 buffer += aligned;
 866                 address += aligned;
 867                 size -= aligned;
 868         }
 869
 870         /* handle tail writes of less than 4 bytes */
 871         if (size > 0)
 872         {
 873                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 874                         return retval;
 875         }
 876
 877         return ERROR_OK;
 878 }
 879
 880
 881 /* Single aligned words are guaranteed to use 16 or 32 bit access
 882  * mode respectively, otherwise data is handled as quickly as
 883  * possible
 884  */
 885 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 886 {
 887         int retval;
 888
 889         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 890
 891         if (((address % 2) == 0) && (size == 2))
 892         {
 893                 return target->type->read_memory(target, address, 2, 1, buffer);
 894         }
 895
 896         /* handle unaligned head bytes */
 897         if (address % 4)
 898         {
 899                 int unaligned = 4 - (address % 4);
 900
 901                 if (unaligned > size)
 902                         unaligned = size;
 903
 904                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 905                         return retval;
 906
 907                 buffer += unaligned;
 908                 address += unaligned;
 909                 size -= unaligned;
 910         }
 911
 912         /* handle aligned words */
 913         if (size >= 4)
 914         {
 915                 int aligned = size - (size % 4);
 916
 917                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 918                         return retval;
 919
 920                 buffer += aligned;
 921                 address += aligned;
 922                 size -= aligned;
 923         }
 924
 925         /* handle tail writes of less than 4 bytes */
 926         if (size > 0)
 927         {
 928                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 929                         return retval;
 930         }
 931
 932         return ERROR_OK;
 933 }
 934
 935 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
 936 {
 937         u8 *buffer;
 938         int retval;
 939         int i;
 940         u32 checksum = 0;
 941
 942         if ((retval = target->type->checksum_memory(target, address,
 943                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
 944         {
 945                 buffer = malloc(size);
 946                 if (buffer == NULL)
 947                 {
 948                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
 949                         return ERROR_INVALID_ARGUMENTS;
 950                 }
 951                 retval = target_read_buffer(target, address, size, buffer);
 952                 if (retval != ERROR_OK)
 953                 {
 954                         free(buffer);
 955                         return retval;
 956                 }
 957
 958                 /* convert to target endianess */
 959                 for (i = 0; i < (size/sizeof(u32)); i++)
 960                 {
 961                         u32 target_data;
 962                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
 963                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
 964                 }
 965
 966                 retval = image_calculate_checksum( buffer, size, &checksum );
 967                 free(buffer);
 968         }
 969
 970         *crc = checksum;
 971
 972         return retval;
 973 }
 974
 975 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 976 {
 977         u8 value_buf[4];
 978
 979         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 980
 981         if (retval == ERROR_OK)
 982         {
 983                 *value = target_buffer_get_u32(target, value_buf);
 984                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 985         }
 986         else
 987         {
 988                 *value = 0x0;
 989                 LOG_DEBUG("address: 0x%8.8x failed", address);
 990         }
 991
 992         return retval;
 993 }
 994
 995 int target_read_u16(struct target_s *target, u32 address, u16 *value)
 996 {
 997         u8 value_buf[2];
 998
 999         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1000
1001         if (retval == ERROR_OK)
1002         {
1003                 *value = target_buffer_get_u16(target, value_buf);
1004                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1005         }
1006         else
1007         {
1008                 *value = 0x0;
1009                 LOG_DEBUG("address: 0x%8.8x failed", address);
1010         }
1011
1012         return retval;
1013 }
1014
1015 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1016 {
1017         int retval = target->type->read_memory(target, address, 1, 1, value);
1018
1019         if (retval == ERROR_OK)
1020         {
1021                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1022         }
1023         else
1024         {
1025                 *value = 0x0;
1026                 LOG_DEBUG("address: 0x%8.8x failed", address);
1027         }
1028
1029         return retval;
1030 }
1031
1032 int target_write_u32(struct target_s *target, u32 address, u32 value)
1033 {
1034         int retval;
1035         u8 value_buf[4];
1036
1037         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1038
1039         target_buffer_set_u32(target, value_buf, value);
1040         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1041         {
1042                 LOG_DEBUG("failed: %i", retval);
1043         }
1044
1045         return retval;
1046 }
1047
1048 int target_write_u16(struct target_s *target, u32 address, u16 value)
1049 {
1050         int retval;
1051         u8 value_buf[2];
1052
1053         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1054
1055         target_buffer_set_u16(target, value_buf, value);
1056         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1057         {
1058                 LOG_DEBUG("failed: %i", retval);
1059         }
1060
1061         return retval;
1062 }
1063
1064 int target_write_u8(struct target_s *target, u32 address, u8 value)
1065 {
1066         int retval;
1067
1068         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1069
1070         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1071         {
1072                 LOG_DEBUG("failed: %i", retval);
1073         }
1074
1075         return retval;
1076 }
1077
1078 int target_register_user_commands(struct command_context_s *cmd_ctx)
1079 {
1080         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1081         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1082         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1083         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1084         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1085         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1086         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1087         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1088
1089         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1090         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1091         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1092
1093         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1094         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1095         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1096
1097         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1098         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1099         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1100         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1101
1102         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1103         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1104         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1105         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1106         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1107
1108         target_request_register_commands(cmd_ctx);
1109         trace_register_commands(cmd_ctx);
1110
1111         return ERROR_OK;
1112 }
1113
1114 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1115 {
1116         target_t *target = targets;
1117         int count = 0;
1118
1119         if (argc == 1)
1120         {
1121                 int num = strtoul(args[0], NULL, 0);
1122
1123                 while (target)
1124                 {
1125                         count++;
1126                         target = target->next;
1127                 }
1128
1129                 if (num < count)
1130                         cmd_ctx->current_target = num;
1131                 else
1132                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1133
1134                 return ERROR_OK;
1135         }
1136
1137         while (target)
1138         {
1139                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1140                 target = target->next;
1141         }
1142
1143         return ERROR_OK;
1144 }
1145
1146 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1147 {
1148         int i;
1149         int found = 0;
1150
1151         if (argc < 3)
1152         {
1153                 return ERROR_COMMAND_SYNTAX_ERROR;
1154         }
1155
1156         /* search for the specified target */
1157         if (args[0] && (args[0][0] != 0))
1158         {
1159                 for (i = 0; target_types[i]; i++)
1160                 {
1161                         if (strcmp(args[0], target_types[i]->name) == 0)
1162                         {
1163                                 target_t **last_target_p = &targets;
1164
1165                                 /* register target specific commands */
1166                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1167                                 {
1168                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1169                                         exit(-1);
1170                                 }
1171
1172                                 if (*last_target_p)
1173                                 {
1174                                         while ((*last_target_p)->next)
1175                                                 last_target_p = &((*last_target_p)->next);
1176                                         last_target_p = &((*last_target_p)->next);
1177                                 }
1178
1179                                 *last_target_p = malloc(sizeof(target_t));
1180
1181                                 (*last_target_p)->type = target_types[i];
1182
1183                                 if (strcmp(args[1], "big") == 0)
1184                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1185                                 else if (strcmp(args[1], "little") == 0)
1186                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1187                                 else
1188                                 {
1189                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1190                                         return ERROR_COMMAND_SYNTAX_ERROR;
1191                                 }
1192
1193                                 /* what to do on a target reset */
1194                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1195                                 if (strcmp(args[2], "reset_halt") == 0)
1196                                         (*last_target_p)->reset_mode = RESET_HALT;
1197                                 else if (strcmp(args[2], "reset_run") == 0)
1198                                         (*last_target_p)->reset_mode = RESET_RUN;
1199                                 else if (strcmp(args[2], "reset_init") == 0)
1200                                         (*last_target_p)->reset_mode = RESET_INIT;
1201                                 else if (strcmp(args[2], "run_and_halt") == 0)
1202                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1203                                 else if (strcmp(args[2], "run_and_init") == 0)
1204                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1205                                 else
1206                                 {
1207                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1208                                         args--;
1209                                         argc++;
1210                                 }
1211                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1212
1213                                 (*last_target_p)->reset_script = NULL;
1214                                 (*last_target_p)->post_halt_script = NULL;
1215                                 (*last_target_p)->pre_resume_script = NULL;
1216                                 (*last_target_p)->gdb_program_script = NULL;
1217
1218                                 (*last_target_p)->working_area = 0x0;
1219                                 (*last_target_p)->working_area_size = 0x0;
1220                                 (*last_target_p)->working_areas = NULL;
1221                                 (*last_target_p)->backup_working_area = 0;
1222
1223                                 (*last_target_p)->state = TARGET_UNKNOWN;
1224                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1225                                 (*last_target_p)->reg_cache = NULL;
1226                                 (*last_target_p)->breakpoints = NULL;
1227                                 (*last_target_p)->watchpoints = NULL;
1228                                 (*last_target_p)->next = NULL;
1229                                 (*last_target_p)->arch_info = NULL;
1230
1231                                 /* initialize trace information */
1232                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1233                                 (*last_target_p)->trace_info->num_trace_points = 0;
1234                                 (*last_target_p)->trace_info->trace_points_size = 0;
1235                                 (*last_target_p)->trace_info->trace_points = NULL;
1236                                 (*last_target_p)->trace_info->trace_history_size = 0;
1237                                 (*last_target_p)->trace_info->trace_history = NULL;
1238                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1239                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1240
1241                                 (*last_target_p)->dbgmsg = NULL;
1242                                 (*last_target_p)->dbg_msg_enabled = 0;
1243
1244                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1245
1246                                 found = 1;
1247                                 break;
1248                         }
1249                 }
1250         }
1251
1252         /* no matching target found */
1253         if (!found)
1254         {
1255                 LOG_ERROR("target '%s' not found", args[0]);
1256                 return ERROR_COMMAND_SYNTAX_ERROR;
1257         }
1258
1259         return ERROR_OK;
1260 }
1261
1262 /* usage: target_script <target#> <event> <script_file> */
1263 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1264 {
1265         target_t *target = NULL;
1266
1267         if (argc < 3)
1268         {
1269                 LOG_ERROR("incomplete target_script command");
1270                 return ERROR_COMMAND_SYNTAX_ERROR;
1271         }
1272
1273         target = get_target_by_num(strtoul(args[0], NULL, 0));
1274
1275         if (!target)
1276         {
1277                 return ERROR_COMMAND_SYNTAX_ERROR;
1278         }
1279
1280         if (strcmp(args[1], "reset") == 0)
1281         {
1282                 if (target->reset_script)
1283                         free(target->reset_script);
1284                 target->reset_script = strdup(args[2]);
1285         }
1286         else if (strcmp(args[1], "post_halt") == 0)
1287         {
1288                 if (target->post_halt_script)
1289                         free(target->post_halt_script);
1290                 target->post_halt_script = strdup(args[2]);
1291         }
1292         else if (strcmp(args[1], "pre_resume") == 0)
1293         {
1294                 if (target->pre_resume_script)
1295                         free(target->pre_resume_script);
1296                 target->pre_resume_script = strdup(args[2]);
1297         }
1298         else if (strcmp(args[1], "gdb_program_config") == 0)
1299         {
1300                 if (target->gdb_program_script)
1301                         free(target->gdb_program_script);
1302                 target->gdb_program_script = strdup(args[2]);
1303         }
1304         else
1305         {
1306                 LOG_ERROR("unknown event type: '%s", args[1]);
1307                 return ERROR_COMMAND_SYNTAX_ERROR;
1308         }
1309
1310         return ERROR_OK;
1311 }
1312
1313 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1314 {
1315         target_t *target = NULL;
1316
1317         if (argc < 2)
1318         {
1319                 return ERROR_COMMAND_SYNTAX_ERROR;
1320         }
1321
1322         target = get_target_by_num(strtoul(args[0], NULL, 0));
1323         if (!target)
1324         {
1325                 return ERROR_COMMAND_SYNTAX_ERROR;
1326         }
1327
1328         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1329
1330         return ERROR_OK;
1331 }
1332
1333 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1334 {
1335         target_t *target = NULL;
1336
1337         if ((argc < 4) || (argc > 5))
1338         {
1339                 return ERROR_COMMAND_SYNTAX_ERROR;
1340         }
1341
1342         target = get_target_by_num(strtoul(args[0], NULL, 0));
1343         if (!target)
1344         {
1345                 return ERROR_COMMAND_SYNTAX_ERROR;
1346         }
1347         target_free_all_working_areas(target);
1348
1349         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1350         if (argc == 5)
1351         {
1352                 target->working_area_virt = strtoul(args[4], NULL, 0);
1353         }
1354         target->working_area_size = strtoul(args[2], NULL, 0);
1355
1356         if (strcmp(args[3], "backup") == 0)
1357         {
1358                 target->backup_working_area = 1;
1359         }
1360         else if (strcmp(args[3], "nobackup") == 0)
1361         {
1362                 target->backup_working_area = 0;
1363         }
1364         else
1365         {
1366                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1367                 return ERROR_COMMAND_SYNTAX_ERROR;
1368         }
1369
1370         return ERROR_OK;
1371 }
1372
1373
1374 /* process target state changes */
1375 int handle_target(void *priv)
1376 {
1377         int retval;
1378         target_t *target = targets;
1379
1380         while (target)
1381         {
1382                 /* only poll if target isn't already halted */
1383                 if (target->state != TARGET_HALTED)
1384                 {
1385                         if (target_continous_poll)
1386                                 if ((retval = target->type->poll(target)) != ERROR_OK)
1387                                 {
1388                                         LOG_ERROR("couldn't poll target(%d). It's due for a reset.", retval);
1389                                 }
1390                 }
1391
1392                 target = target->next;
1393         }
1394
1395         return ERROR_OK;
1396 }
1397
1398 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1399 {
1400         target_t *target;
1401         reg_t *reg = NULL;
1402         int count = 0;
1403         char *value;
1404
1405         LOG_DEBUG("-");
1406
1407         target = get_current_target(cmd_ctx);
1408
1409         /* list all available registers for the current target */
1410         if (argc == 0)
1411         {
1412                 reg_cache_t *cache = target->reg_cache;
1413
1414                 count = 0;
1415                 while(cache)
1416                 {
1417                         int i;
1418                         for (i = 0; i < cache->num_regs; i++)
1419                         {
1420                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1421                                 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);
1422                                 free(value);
1423                         }
1424                         cache = cache->next;
1425                 }
1426
1427                 return ERROR_OK;
1428         }
1429
1430         /* access a single register by its ordinal number */
1431         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1432         {
1433                 int num = strtoul(args[0], NULL, 0);
1434                 reg_cache_t *cache = target->reg_cache;
1435
1436                 count = 0;
1437                 while(cache)
1438                 {
1439                         int i;
1440                         for (i = 0; i < cache->num_regs; i++)
1441                         {
1442                                 if (count++ == num)
1443                                 {
1444                                         reg = &cache->reg_list[i];
1445                                         break;
1446                                 }
1447                         }
1448                         if (reg)
1449                                 break;
1450                         cache = cache->next;
1451                 }
1452
1453                 if (!reg)
1454                 {
1455                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1456                         return ERROR_OK;
1457                 }
1458         } else /* access a single register by its name */
1459         {
1460                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1461
1462                 if (!reg)
1463                 {
1464                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1465                         return ERROR_OK;
1466                 }
1467         }
1468
1469         /* display a register */
1470         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1471         {
1472                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1473                         reg->valid = 0;
1474
1475                 if (reg->valid == 0)
1476                 {
1477                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1478                         if (arch_type == NULL)
1479                         {
1480                                 LOG_ERROR("BUG: encountered unregistered arch type");
1481                                 return ERROR_OK;
1482                         }
1483                         arch_type->get(reg);
1484                 }
1485                 value = buf_to_str(reg->value, reg->size, 16);
1486                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1487                 free(value);
1488                 return ERROR_OK;
1489         }
1490
1491         /* set register value */
1492         if (argc == 2)
1493         {
1494                 u8 *buf = malloc(CEIL(reg->size, 8));
1495                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1496
1497                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1498                 if (arch_type == NULL)
1499                 {
1500                         LOG_ERROR("BUG: encountered unregistered arch type");
1501                         return ERROR_OK;
1502                 }
1503
1504                 arch_type->set(reg, buf);
1505
1506                 value = buf_to_str(reg->value, reg->size, 16);
1507                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1508                 free(value);
1509
1510                 free(buf);
1511
1512                 return ERROR_OK;
1513         }
1514
1515         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1516
1517         return ERROR_OK;
1518 }
1519
1520 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1521
1522 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1523 {
1524         target_t *target = get_current_target(cmd_ctx);
1525
1526         if (argc == 0)
1527         {
1528                 target->type->poll(target);
1529                 target_arch_state(target);
1530         }
1531         else
1532         {
1533                 if (strcmp(args[0], "on") == 0)
1534                 {
1535                         target_continous_poll = 1;
1536                 }
1537                 else if (strcmp(args[0], "off") == 0)
1538                 {
1539                         target_continous_poll = 0;
1540                 }
1541                 else
1542                 {
1543                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1544                 }
1545         }
1546
1547
1548         return ERROR_OK;
1549 }
1550
1551 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1552 {
1553         int ms = 5000;
1554
1555         if (argc > 0)
1556         {
1557                 char *end;
1558
1559                 ms = strtoul(args[0], &end, 0) * 1000;
1560                 if (*end)
1561                 {
1562                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1563                         return ERROR_OK;
1564                 }
1565         }
1566
1567         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1568 }
1569
1570 static void target_process_events(struct command_context_s *cmd_ctx)
1571 {
1572         target_t *target = get_current_target(cmd_ctx);
1573         target->type->poll(target);
1574         target_call_timer_callbacks_now();
1575 }
1576
1577 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1578 {
1579         int retval;
1580         struct timeval timeout, now;
1581         int once=1;
1582         gettimeofday(&timeout, NULL);
1583         timeval_add_time(&timeout, 0, ms * 1000);
1584
1585         target_t *target = get_current_target(cmd_ctx);
1586         for (;;)
1587         {
1588                 if ((retval=target->type->poll(target))!=ERROR_OK)
1589                         return retval;
1590                 target_call_timer_callbacks_now();
1591                 if (target->state == state)
1592                 {
1593                         break;
1594                 }
1595                 if (once)
1596                 {
1597                         once=0;
1598                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1599                 }
1600
1601                 gettimeofday(&now, NULL);
1602                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1603                 {
1604                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1605                         break;
1606                 }
1607         }
1608
1609         return ERROR_OK;
1610 }
1611
1612 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1613 {
1614         int retval;
1615         target_t *target = get_current_target(cmd_ctx);
1616
1617         LOG_DEBUG("-");
1618
1619         if ((retval = target->type->halt(target)) != ERROR_OK)
1620         {
1621                 return retval;
1622         }
1623
1624         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1625 }
1626
1627 /* what to do on daemon startup */
1628 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1629 {
1630         if (argc == 1)
1631         {
1632                 if (strcmp(args[0], "attach") == 0)
1633                 {
1634                         startup_mode = DAEMON_ATTACH;
1635                         return ERROR_OK;
1636                 }
1637                 else if (strcmp(args[0], "reset") == 0)
1638                 {
1639                         startup_mode = DAEMON_RESET;
1640                         return ERROR_OK;
1641                 }
1642         }
1643
1644         LOG_WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1645         return ERROR_OK;
1646
1647 }
1648
1649 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1650 {
1651         target_t *target = get_current_target(cmd_ctx);
1652
1653         LOG_USER("requesting target halt and executing a soft reset");
1654
1655         target->type->soft_reset_halt(target);
1656
1657         return ERROR_OK;
1658 }
1659
1660 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1661 {
1662         target_t *target = get_current_target(cmd_ctx);
1663         enum target_reset_mode reset_mode = target->reset_mode;
1664         enum target_reset_mode save = target->reset_mode;
1665
1666         LOG_DEBUG("-");
1667
1668         if (argc >= 1)
1669         {
1670                 if (strcmp("run", args[0]) == 0)
1671                         reset_mode = RESET_RUN;
1672                 else if (strcmp("halt", args[0]) == 0)
1673                         reset_mode = RESET_HALT;
1674                 else if (strcmp("init", args[0]) == 0)
1675                         reset_mode = RESET_INIT;
1676                 else if (strcmp("run_and_halt", args[0]) == 0)
1677                 {
1678                         reset_mode = RESET_RUN_AND_HALT;
1679                         if (argc >= 2)
1680                         {
1681                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1682                         }
1683                 }
1684                 else if (strcmp("run_and_init", args[0]) == 0)
1685                 {
1686                         reset_mode = RESET_RUN_AND_INIT;
1687                         if (argc >= 2)
1688                         {
1689                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1690                         }
1691                 }
1692                 else
1693                 {
1694                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1695                         return ERROR_OK;
1696                 }
1697         }
1698
1699         /* temporarily modify mode of current reset target */
1700         target->reset_mode = reset_mode;
1701
1702         /* reset *all* targets */
1703         target_process_reset(cmd_ctx);
1704
1705         /* Restore default reset mode for this target */
1706     target->reset_mode = save;
1707
1708         return ERROR_OK;
1709 }
1710
1711 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1712 {
1713         int retval;
1714         target_t *target = get_current_target(cmd_ctx);
1715
1716         if (argc == 0)
1717                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1718         else if (argc == 1)
1719                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1720         else
1721         {
1722                 return ERROR_COMMAND_SYNTAX_ERROR;
1723         }
1724
1725         target_process_events(cmd_ctx);
1726
1727         return retval;
1728 }
1729
1730 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1731 {
1732         target_t *target = get_current_target(cmd_ctx);
1733
1734         LOG_DEBUG("-");
1735
1736         if (argc == 0)
1737                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1738
1739         if (argc == 1)
1740                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1741
1742         return ERROR_OK;
1743 }
1744
1745 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1746 {
1747         const int line_bytecnt = 32;
1748         int count = 1;
1749         int size = 4;
1750         u32 address = 0;
1751         int line_modulo;
1752         int i;
1753
1754         char output[128];
1755         int output_len;
1756
1757         int retval;
1758
1759         u8 *buffer;
1760         target_t *target = get_current_target(cmd_ctx);
1761
1762         if (argc < 1)
1763                 return ERROR_OK;
1764
1765         if (argc == 2)
1766                 count = strtoul(args[1], NULL, 0);
1767
1768         address = strtoul(args[0], NULL, 0);
1769
1770
1771         switch (cmd[2])
1772         {
1773                 case 'w':
1774                         size = 4; line_modulo = line_bytecnt / 4;
1775                         break;
1776                 case 'h':
1777                         size = 2; line_modulo = line_bytecnt / 2;
1778                         break;
1779                 case 'b':
1780                         size = 1; line_modulo = line_bytecnt / 1;
1781                         break;
1782                 default:
1783                         return ERROR_OK;
1784         }
1785
1786         buffer = calloc(count, size);
1787         retval  = target->type->read_memory(target, address, size, count, buffer);
1788         if (retval == ERROR_OK)
1789         {
1790                 output_len = 0;
1791
1792                 for (i = 0; i < count; i++)
1793                 {
1794                         if (i%line_modulo == 0)
1795                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1796
1797                         switch (size)
1798                         {
1799                                 case 4:
1800                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1801                                         break;
1802                                 case 2:
1803                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1804                                         break;
1805                                 case 1:
1806                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1807                                         break;
1808                         }
1809
1810                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1811                         {
1812                                 command_print(cmd_ctx, output);
1813                                 output_len = 0;
1814                         }
1815                 }
1816         } else
1817         {
1818                 LOG_ERROR("Failure examining memory");
1819         }
1820
1821         free(buffer);
1822
1823         return ERROR_OK;
1824 }
1825
1826 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1827 {
1828         u32 address = 0;
1829         u32 value = 0;
1830         int count = 1;
1831         int i;
1832         int wordsize;
1833         target_t *target = get_current_target(cmd_ctx);
1834         u8 value_buf[4];
1835
1836          if ((argc < 2) || (argc > 3))
1837                 return ERROR_COMMAND_SYNTAX_ERROR;
1838
1839         address = strtoul(args[0], NULL, 0);
1840         value = strtoul(args[1], NULL, 0);
1841         if (argc == 3)
1842                 count = strtoul(args[2], NULL, 0);
1843
1844
1845         switch (cmd[2])
1846         {
1847                 case 'w':
1848                         wordsize = 4;
1849                         target_buffer_set_u32(target, value_buf, value);
1850                         break;
1851                 case 'h':
1852                         wordsize = 2;
1853                         target_buffer_set_u16(target, value_buf, value);
1854                         break;
1855                 case 'b':
1856                         wordsize = 1;
1857                         value_buf[0] = value;
1858                         break;
1859                 default:
1860                         return ERROR_COMMAND_SYNTAX_ERROR;
1861         }
1862         for (i=0; i<count; i++)
1863         {
1864                 int retval;
1865                 switch (wordsize)
1866                 {
1867                         case 4:
1868                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1869                                 break;
1870                         case 2:
1871                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1872                                 break;
1873                         case 1:
1874                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
1875                         break;
1876                         default:
1877                         return ERROR_OK;
1878                 }
1879                 if (retval!=ERROR_OK)
1880                 {
1881                         return retval;
1882                 }
1883         }
1884
1885         return ERROR_OK;
1886
1887 }
1888
1889 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1890 {
1891         u8 *buffer;
1892         u32 buf_cnt;
1893         u32 image_size;
1894         int i;
1895         int retval;
1896
1897         image_t image;
1898
1899         duration_t duration;
1900         char *duration_text;
1901
1902         target_t *target = get_current_target(cmd_ctx);
1903
1904         if (argc < 1)
1905         {
1906                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1907                 return ERROR_OK;
1908         }
1909
1910         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1911         if (argc >= 2)
1912         {
1913                 image.base_address_set = 1;
1914                 image.base_address = strtoul(args[1], NULL, 0);
1915         }
1916         else
1917         {
1918                 image.base_address_set = 0;
1919         }
1920
1921         image.start_address_set = 0;
1922
1923         duration_start_measure(&duration);
1924
1925         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1926         {
1927                 return ERROR_OK;
1928         }
1929
1930         image_size = 0x0;
1931         retval = ERROR_OK;
1932         for (i = 0; i < image.num_sections; i++)
1933         {
1934                 buffer = malloc(image.sections[i].size);
1935                 if (buffer == NULL)
1936                 {
1937                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1938                         break;
1939                 }
1940
1941                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1942                 {
1943                         free(buffer);
1944                         break;
1945                 }
1946                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
1947                 {
1948                         free(buffer);
1949                         break;
1950                 }
1951                 image_size += buf_cnt;
1952                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1953
1954                 free(buffer);
1955         }
1956
1957         duration_stop_measure(&duration, &duration_text);
1958         if (retval==ERROR_OK)
1959         {
1960                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1961         }
1962         free(duration_text);
1963
1964         image_close(&image);
1965
1966         return retval;
1967
1968 }
1969
1970 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1971 {
1972         fileio_t fileio;
1973
1974         u32 address;
1975         u32 size;
1976         u8 buffer[560];
1977         int retval=ERROR_OK;
1978
1979         duration_t duration;
1980         char *duration_text;
1981
1982         target_t *target = get_current_target(cmd_ctx);
1983
1984         if (argc != 3)
1985         {
1986                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1987                 return ERROR_OK;
1988         }
1989
1990         address = strtoul(args[1], NULL, 0);
1991         size = strtoul(args[2], NULL, 0);
1992
1993         if ((address & 3) || (size & 3))
1994         {
1995                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1996                 return ERROR_OK;
1997         }
1998
1999         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2000         {
2001                 return ERROR_OK;
2002         }
2003
2004         duration_start_measure(&duration);
2005
2006         while (size > 0)
2007         {
2008                 u32 size_written;
2009                 u32 this_run_size = (size > 560) ? 560 : size;
2010
2011                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2012                 if (retval != ERROR_OK)
2013                 {
2014                         break;
2015                 }
2016
2017                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2018                 if (retval != ERROR_OK)
2019                 {
2020                         break;
2021                 }
2022
2023                 size -= this_run_size;
2024                 address += this_run_size;
2025         }
2026
2027         fileio_close(&fileio);
2028
2029         duration_stop_measure(&duration, &duration_text);
2030         if (retval==ERROR_OK)
2031         {
2032                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2033         }
2034         free(duration_text);
2035
2036         return ERROR_OK;
2037 }
2038
2039 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2040 {
2041         u8 *buffer;
2042         u32 buf_cnt;
2043         u32 image_size;
2044         int i;
2045         int retval;
2046         u32 checksum = 0;
2047         u32 mem_checksum = 0;
2048
2049         image_t image;
2050
2051         duration_t duration;
2052         char *duration_text;
2053
2054         target_t *target = get_current_target(cmd_ctx);
2055
2056         if (argc < 1)
2057         {
2058                 return ERROR_COMMAND_SYNTAX_ERROR;
2059         }
2060
2061         if (!target)
2062         {
2063                 LOG_ERROR("no target selected");
2064                 return ERROR_FAIL;
2065         }
2066
2067         duration_start_measure(&duration);
2068
2069         if (argc >= 2)
2070         {
2071                 image.base_address_set = 1;
2072                 image.base_address = strtoul(args[1], NULL, 0);
2073         }
2074         else
2075         {
2076                 image.base_address_set = 0;
2077                 image.base_address = 0x0;
2078         }
2079
2080         image.start_address_set = 0;
2081
2082         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2083         {
2084                 return retval;
2085         }
2086
2087         image_size = 0x0;
2088         retval=ERROR_OK;
2089         for (i = 0; i < image.num_sections; i++)
2090         {
2091                 buffer = malloc(image.sections[i].size);
2092                 if (buffer == NULL)
2093                 {
2094                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2095                         break;
2096                 }
2097                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2098                 {
2099                         free(buffer);
2100                         break;
2101                 }
2102
2103                 /* calculate checksum of image */
2104                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2105
2106                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2107                 if( retval != ERROR_OK )
2108                 {
2109                         free(buffer);
2110                         break;
2111                 }
2112
2113                 if( checksum != mem_checksum )
2114                 {
2115                         /* failed crc checksum, fall back to a binary compare */
2116                         u8 *data;
2117
2118                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2119
2120                         data = (u8*)malloc(buf_cnt);
2121
2122                         /* Can we use 32bit word accesses? */
2123                         int size = 1;
2124                         int count = buf_cnt;
2125                         if ((count % 4) == 0)
2126                         {
2127                                 size *= 4;
2128                                 count /= 4;
2129                         }
2130                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2131                         if (retval == ERROR_OK)
2132                         {
2133                                 int t;
2134                                 for (t = 0; t < buf_cnt; t++)
2135                                 {
2136                                         if (data[t] != buffer[t])
2137                                         {
2138                                                 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]);
2139                                                 free(data);
2140                                                 free(buffer);
2141                                                 retval=ERROR_FAIL;
2142                                                 goto done;
2143                                         }
2144                                 }
2145                         }
2146
2147                         free(data);
2148                 }
2149
2150                 free(buffer);
2151                 image_size += buf_cnt;
2152         }
2153 done:
2154         duration_stop_measure(&duration, &duration_text);
2155         if (retval==ERROR_OK)
2156         {
2157                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2158         }
2159         free(duration_text);
2160
2161         image_close(&image);
2162
2163         return retval;
2164 }
2165
2166 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2167 {
2168         int retval;
2169         target_t *target = get_current_target(cmd_ctx);
2170
2171         if (argc == 0)
2172         {
2173                 breakpoint_t *breakpoint = target->breakpoints;
2174
2175                 while (breakpoint)
2176                 {
2177                         if (breakpoint->type == BKPT_SOFT)
2178                         {
2179                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2180                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2181                                 free(buf);
2182                         }
2183                         else
2184                         {
2185                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2186                         }
2187                         breakpoint = breakpoint->next;
2188                 }
2189         }
2190         else if (argc >= 2)
2191         {
2192                 int hw = BKPT_SOFT;
2193                 u32 length = 0;
2194
2195                 length = strtoul(args[1], NULL, 0);
2196
2197                 if (argc >= 3)
2198                         if (strcmp(args[2], "hw") == 0)
2199                                 hw = BKPT_HARD;
2200
2201                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2202                 {
2203                         LOG_ERROR("Failure setting breakpoints");
2204                 }
2205                 else
2206                 {
2207                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2208                 }
2209         }
2210         else
2211         {
2212                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2213         }
2214
2215         return ERROR_OK;
2216 }
2217
2218 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2219 {
2220         target_t *target = get_current_target(cmd_ctx);
2221
2222         if (argc > 0)
2223                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2224
2225         return ERROR_OK;
2226 }
2227
2228 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2229 {
2230         target_t *target = get_current_target(cmd_ctx);
2231         int retval;
2232
2233         if (argc == 0)
2234         {
2235                 watchpoint_t *watchpoint = target->watchpoints;
2236
2237                 while (watchpoint)
2238                 {
2239                         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);
2240                         watchpoint = watchpoint->next;
2241                 }
2242         }
2243         else if (argc >= 2)
2244         {
2245                 enum watchpoint_rw type = WPT_ACCESS;
2246                 u32 data_value = 0x0;
2247                 u32 data_mask = 0xffffffff;
2248
2249                 if (argc >= 3)
2250                 {
2251                         switch(args[2][0])
2252                         {
2253                                 case 'r':
2254                                         type = WPT_READ;
2255                                         break;
2256                                 case 'w':
2257                                         type = WPT_WRITE;
2258                                         break;
2259                                 case 'a':
2260                                         type = WPT_ACCESS;
2261                                         break;
2262                                 default:
2263                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2264                                         return ERROR_OK;
2265                         }
2266                 }
2267                 if (argc >= 4)
2268                 {
2269                         data_value = strtoul(args[3], NULL, 0);
2270                 }
2271                 if (argc >= 5)
2272                 {
2273                         data_mask = strtoul(args[4], NULL, 0);
2274                 }
2275
2276                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2277                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2278                 {
2279                         LOG_ERROR("Failure setting breakpoints");
2280                 }
2281         }
2282         else
2283         {
2284                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2285         }
2286
2287         return ERROR_OK;
2288 }
2289
2290 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2291 {
2292         target_t *target = get_current_target(cmd_ctx);
2293
2294         if (argc > 0)
2295                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2296
2297         return ERROR_OK;
2298 }
2299
2300 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2301 {
2302         int retval;
2303         target_t *target = get_current_target(cmd_ctx);
2304         u32 va;
2305         u32 pa;
2306
2307         if (argc != 1)
2308         {
2309                 return ERROR_COMMAND_SYNTAX_ERROR;
2310         }
2311         va = strtoul(args[0], NULL, 0);
2312
2313         retval = target->type->virt2phys(target, va, &pa);
2314         if (retval == ERROR_OK)
2315         {
2316                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2317         }
2318         else
2319         {
2320                 /* lower levels will have logged a detailed error which is
2321                  * forwarded to telnet/GDB session.
2322                  */
2323         }
2324         return retval;
2325 }
2326 static void writeLong(FILE *f, int l)
2327 {
2328         int i;
2329         for (i=0; i<4; i++)
2330         {
2331                 char c=(l>>(i*8))&0xff;
2332                 fwrite(&c, 1, 1, f);
2333         }
2334
2335 }
2336 static void writeString(FILE *f, char *s)
2337 {
2338         fwrite(s, 1, strlen(s), f);
2339 }
2340
2341
2342
2343 // Dump a gmon.out histogram file.
2344 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2345 {
2346         int i;
2347         FILE *f=fopen(filename, "w");
2348         if (f==NULL)
2349                 return;
2350         fwrite("gmon", 1, 4, f);
2351         writeLong(f, 0x00000001); // Version
2352         writeLong(f, 0); // padding
2353         writeLong(f, 0); // padding
2354         writeLong(f, 0); // padding
2355
2356         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2357
2358         // figure out bucket size
2359         u32 min=samples[0];
2360         u32 max=samples[0];
2361         for (i=0; i<sampleNum; i++)
2362         {
2363                 if (min>samples[i])
2364                 {
2365                         min=samples[i];
2366                 }
2367                 if (max<samples[i])
2368                 {
2369                         max=samples[i];
2370                 }
2371         }
2372
2373         int addressSpace=(max-min+1);
2374
2375         static int const maxBuckets=256*1024; // maximum buckets.
2376         int length=addressSpace;
2377         if (length > maxBuckets)
2378         {
2379                 length=maxBuckets;
2380         }
2381         int *buckets=malloc(sizeof(int)*length);
2382         if (buckets==NULL)
2383         {
2384                 fclose(f);
2385                 return;
2386         }
2387         memset(buckets, 0, sizeof(int)*length);
2388         for (i=0; i<sampleNum;i++)
2389         {
2390                 u32 address=samples[i];
2391                 long long a=address-min;
2392                 long long b=length-1;
2393                 long long c=addressSpace-1;
2394                 int index=(a*b)/c; // danger!!!! int32 overflows
2395                 buckets[index]++;
2396         }
2397
2398         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2399         writeLong(f, min);                                      // low_pc
2400         writeLong(f, max);              // high_pc
2401         writeLong(f, length);           // # of samples
2402         writeLong(f, 64000000);                         // 64MHz
2403         writeString(f, "seconds");
2404         for (i=0; i<(15-strlen("seconds")); i++)
2405         {
2406                 fwrite("", 1, 1, f);  // padding
2407         }
2408         writeString(f, "s");
2409
2410 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2411
2412         char *data=malloc(2*length);
2413         if (data!=NULL)
2414         {
2415                 for (i=0; i<length;i++)
2416                 {
2417                         int val;
2418                         val=buckets[i];
2419                         if (val>65535)
2420                         {
2421                                 val=65535;
2422                         }
2423                         data[i*2]=val&0xff;
2424                         data[i*2+1]=(val>>8)&0xff;
2425                 }
2426                 free(buckets);
2427                 fwrite(data, 1, length*2, f);
2428                 free(data);
2429         } else
2430         {
2431                 free(buckets);
2432         }
2433
2434         fclose(f);
2435 }
2436
2437 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2438 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2439 {
2440         target_t *target = get_current_target(cmd_ctx);
2441         struct timeval timeout, now;
2442
2443         gettimeofday(&timeout, NULL);
2444         if (argc!=2)
2445         {
2446                 return ERROR_COMMAND_SYNTAX_ERROR;
2447         }
2448         char *end;
2449         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2450         if (*end)
2451         {
2452                 return ERROR_OK;
2453         }
2454
2455         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2456
2457         static const int maxSample=10000;
2458         u32 *samples=malloc(sizeof(u32)*maxSample);
2459         if (samples==NULL)
2460                 return ERROR_OK;
2461
2462         int numSamples=0;
2463         int retval=ERROR_OK;
2464         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2465         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2466
2467         for (;;)
2468         {
2469                 target->type->poll(target);
2470                 if (target->state == TARGET_HALTED)
2471                 {
2472                         u32 t=*((u32 *)reg->value);
2473                         samples[numSamples++]=t;
2474                         retval = target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2475                         target->type->poll(target);
2476                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2477                 } else if (target->state == TARGET_RUNNING)
2478                 {
2479                         // We want to quickly sample the PC.
2480                         target->type->halt(target);
2481                 } else
2482                 {
2483                         command_print(cmd_ctx, "Target not halted or running");
2484                         retval=ERROR_OK;
2485                         break;
2486                 }
2487                 if (retval!=ERROR_OK)
2488                 {
2489                         break;
2490                 }
2491
2492                 gettimeofday(&now, NULL);
2493                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2494                 {
2495                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2496                         target->type->poll(target);
2497                         if (target->state == TARGET_HALTED)
2498                         {
2499                                 target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2500                         }
2501                         target->type->poll(target);
2502                         writeGmon(samples, numSamples, args[1]);
2503                         command_print(cmd_ctx, "Wrote %s", args[1]);
2504                         break;
2505                 }
2506         }
2507         free(samples);
2508
2509         return ERROR_OK;
2510 }
2511