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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26 #include "target_request.h"
  27
  28 #include "log.h"
  29 #include "configuration.h"
  30 #include "binarybuffer.h"
  31 #include "jtag.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <inttypes.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <sys/time.h>
  43 #include <time.h>
  44
  45 #include <time_support.h>
  46
  47 #include <fileio.h>
  48 #include <image.h>
  49
  50 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  51
  52
  53 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55
  56 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59
  60 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  79
  80 /* targets
  81  */
  82 extern target_type_t arm7tdmi_target;
  83 extern target_type_t arm720t_target;
  84 extern target_type_t arm9tdmi_target;
  85 extern target_type_t arm920t_target;
  86 extern target_type_t arm966e_target;
  87 extern target_type_t arm926ejs_target;
  88 extern target_type_t feroceon_target;
  89 extern target_type_t xscale_target;
  90 extern target_type_t cortexm3_target;
  91 extern target_type_t arm11_target;
  92
  93 target_type_t *target_types[] =
  94 {
  95         &arm7tdmi_target,
  96         &arm9tdmi_target,
  97         &arm920t_target,
  98         &arm720t_target,
  99         &arm966e_target,
 100         &arm926ejs_target,
 101         &feroceon_target,
 102         &xscale_target,
 103         &cortexm3_target,
 104         &arm11_target,
 105         NULL,
 106 };
 107
 108 target_t *targets = NULL;
 109 target_event_callback_t *target_event_callbacks = NULL;
 110 target_timer_callback_t *target_timer_callbacks = NULL;
 111
 112 char *target_state_strings[] =
 113 {
 114         "unknown",
 115         "running",
 116         "halted",
 117         "reset",
 118         "debug_running",
 119 };
 120
 121 char *target_debug_reason_strings[] =
 122 {
 123         "debug request", "breakpoint", "watchpoint",
 124         "watchpoint and breakpoint", "single step",
 125         "target not halted", "undefined"
 126 };
 127
 128 char *target_endianess_strings[] =
 129 {
 130         "big endian",
 131         "little endian",
 132 };
 133
 134 static int target_continous_poll = 1;
 135
 136 /* read a u32 from a buffer in target memory endianness */
 137 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 138 {
 139         if (target->endianness == TARGET_LITTLE_ENDIAN)
 140                 return le_to_h_u32(buffer);
 141         else
 142                 return be_to_h_u32(buffer);
 143 }
 144
 145 /* read a u16 from a buffer in target memory endianness */
 146 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 147 {
 148         if (target->endianness == TARGET_LITTLE_ENDIAN)
 149                 return le_to_h_u16(buffer);
 150         else
 151                 return be_to_h_u16(buffer);
 152 }
 153
 154 /* write a u32 to a buffer in target memory endianness */
 155 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 156 {
 157         if (target->endianness == TARGET_LITTLE_ENDIAN)
 158                 h_u32_to_le(buffer, value);
 159         else
 160                 h_u32_to_be(buffer, value);
 161 }
 162
 163 /* write a u16 to a buffer in target memory endianness */
 164 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 165 {
 166         if (target->endianness == TARGET_LITTLE_ENDIAN)
 167                 h_u16_to_le(buffer, value);
 168         else
 169                 h_u16_to_be(buffer, value);
 170 }
 171
 172 /* returns a pointer to the n-th configured target */
 173 target_t* get_target_by_num(int num)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (num == i)
 181                         return target;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return NULL;
 187 }
 188
 189 int get_num_by_target(target_t *query_target)
 190 {
 191         target_t *target = targets;
 192         int i = 0;
 193
 194         while (target)
 195         {
 196                 if (target == query_target)
 197                         return i;
 198                 target = target->next;
 199                 i++;
 200         }
 201
 202         return -1;
 203 }
 204
 205 target_t* get_current_target(command_context_t *cmd_ctx)
 206 {
 207         target_t *target = get_target_by_num(cmd_ctx->current_target);
 208
 209         if (target == NULL)
 210         {
 211                 LOG_ERROR("BUG: current_target out of bounds");
 212                 exit(-1);
 213         }
 214
 215         return target;
 216 }
 217
 218 /* Process target initialization, when target entered debug out of reset
 219  * the handler is unregistered at the end of this function, so it's only called once
 220  */
 221 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 222 {
 223         FILE *script;
 224         struct command_context_s *cmd_ctx = priv;
 225
 226         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 227         {
 228                 target_unregister_event_callback(target_init_handler, priv);
 229
 230                 script = open_file_from_path(target->reset_script, "r");
 231                 if (!script)
 232                 {
 233                         LOG_ERROR("couldn't open script file %s", target->reset_script);
 234                                 return ERROR_OK;
 235                 }
 236
 237                 LOG_INFO("executing reset script '%s'", target->reset_script);
 238                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 239                 fclose(script);
 240
 241                 jtag_execute_queue();
 242         }
 243
 244         return ERROR_OK;
 245 }
 246
 247 int target_run_and_halt_handler(void *priv)
 248 {
 249         target_t *target = priv;
 250
 251         target->type->halt(target);
 252
 253         return ERROR_OK;
 254 }
 255
 256 int target_process_reset(struct command_context_s *cmd_ctx)
 257 {
 258         int retval = ERROR_OK;
 259         target_t *target;
 260         struct timeval timeout, now;
 261
 262         jtag->speed(jtag_speed);
 263
 264         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 265                 return retval;
 266
 267         if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 268                 return retval;
 269
 270         /* prepare reset_halt where necessary */
 271         target = targets;
 272         while (target)
 273         {
 274                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 275                 {
 276                         switch (target->reset_mode)
 277                         {
 278                                 case RESET_HALT:
 279                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 280                                         target->reset_mode = RESET_RUN_AND_HALT;
 281                                         break;
 282                                 case RESET_INIT:
 283                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 284                                         target->reset_mode = RESET_RUN_AND_INIT;
 285                                         break;
 286                                 default:
 287                                         break;
 288                         }
 289                 }
 290                 target = target->next;
 291         }
 292
 293         target = targets;
 294         while (target)
 295         {
 296                 /* we have no idea what state the target is in, so we
 297                  * have to drop working areas
 298                  */
 299                 target_free_all_working_areas_restore(target, 0);
 300                 target->type->assert_reset(target);
 301                 target = target->next;
 302         }
 303         if ((retval = jtag_execute_queue()) != ERROR_OK)
 304         {
 305                 LOG_WARNING("JTAG communication failed asserting reset.");
 306                 retval = ERROR_OK;
 307         }
 308
 309         /* request target halt if necessary, and schedule further action */
 310         target = targets;
 311         while (target)
 312         {
 313                 switch (target->reset_mode)
 314                 {
 315                         case RESET_RUN:
 316                                 /* nothing to do if target just wants to be run */
 317                                 break;
 318                         case RESET_RUN_AND_HALT:
 319                                 /* schedule halt */
 320                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 321                                 break;
 322                         case RESET_RUN_AND_INIT:
 323                                 /* schedule halt */
 324                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 325                                 target_register_event_callback(target_init_handler, cmd_ctx);
 326                                 break;
 327                         case RESET_HALT:
 328                                 target->type->halt(target);
 329                                 break;
 330                         case RESET_INIT:
 331                                 target->type->halt(target);
 332                                 target_register_event_callback(target_init_handler, cmd_ctx);
 333                                 break;
 334                         default:
 335                                 LOG_ERROR("BUG: unknown target->reset_mode");
 336                 }
 337                 target = target->next;
 338         }
 339
 340         if ((retval = jtag_execute_queue()) != ERROR_OK)
 341         {
 342                 LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
 343                 retval = ERROR_OK;
 344         }
 345
 346         target = targets;
 347         while (target)
 348         {
 349                 target->type->deassert_reset(target);
 350                 target = target->next;
 351         }
 352
 353         if ((retval = jtag_execute_queue()) != ERROR_OK)
 354         {
 355                 LOG_WARNING("JTAG communication failed while deasserting reset.");
 356                 retval = ERROR_OK;
 357         }
 358
 359         LOG_DEBUG("Waiting for halted stated as approperiate");
 360
 361         /* Wait for reset to complete, maximum 5 seconds. */
 362         gettimeofday(&timeout, NULL);
 363         timeval_add_time(&timeout, 5, 0);
 364         for(;;)
 365         {
 366                 gettimeofday(&now, NULL);
 367
 368                 target_call_timer_callbacks_now();
 369
 370                 target = targets;
 371                 while (target)
 372                 {
 373                         LOG_DEBUG("Polling target");
 374                         target->type->poll(target);
 375                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 376                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 377                                         (target->reset_mode == RESET_HALT) ||
 378                                         (target->reset_mode == RESET_INIT))
 379                         {
 380                                 if (target->state != TARGET_HALTED)
 381                                 {
 382                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 383                                         {
 384                                                 LOG_USER("Timed out waiting for halt after reset");
 385                                                 goto done;
 386                                         }
 387                                         /* this will send alive messages on e.g. GDB remote protocol. */
 388                                         usleep(500*1000);
 389                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 390                                         goto again;
 391                                 }
 392                         }
 393                         target = target->next;
 394                 }
 395                 /* All targets we're waiting for are halted */
 396                 break;
 397
 398                 again:;
 399         }
 400         done:
 401
 402
 403         /* We want any events to be processed before the prompt */
 404         target_call_timer_callbacks_now();
 405
 406         /* if we timed out we need to unregister these handlers */
 407         target = targets;
 408         while (target)
 409         {
 410                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 411                 target = target->next;
 412         }
 413         target_unregister_event_callback(target_init_handler, cmd_ctx);
 414
 415
 416         jtag->speed(jtag_speed_post_reset);
 417
 418         return retval;
 419 }
 420
 421 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 422 {
 423         *physical = virtual;
 424         return ERROR_OK;
 425 }
 426
 427 static int default_mmu(struct target_s *target, int *enabled)
 428 {
 429         *enabled = 0;
 430         return ERROR_OK;
 431 }
 432
 433 static int default_examine(struct command_context_s *cmd_ctx, struct target_s *target)
 434 {
 435         return ERROR_OK;
 436 }
 437
 438
 439 /* Targets that correctly implement init+examine, i.e.
 440  * no communication with target during init:
 441  *
 442  * XScale
 443  */
 444 int target_examine(struct command_context_s *cmd_ctx)
 445 {
 446         int retval = ERROR_OK;
 447         target_t *target = targets;
 448         while (target)
 449         {
 450                 if ((retval = target->type->examine(cmd_ctx, target))!=ERROR_OK)
 451                         return retval;
 452                 target = target->next;
 453         }
 454         return retval;
 455 }
 456
 457
 458 int target_init(struct command_context_s *cmd_ctx)
 459 {
 460         target_t *target = targets;
 461
 462         while (target)
 463         {
 464                 target->type->examined = 0;
 465                 if (target->type->examine == NULL)
 466                 {
 467                         target->type->examine = default_examine;
 468                 }
 469
 470                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 471                 {
 472                         LOG_ERROR("target '%s' init failed", target->type->name);
 473                         exit(-1);
 474                 }
 475
 476                 /* Set up default functions if none are provided by target */
 477                 if (target->type->virt2phys == NULL)
 478                 {
 479                         target->type->virt2phys = default_virt2phys;
 480                 }
 481                 if (target->type->mmu == NULL)
 482                 {
 483                         target->type->mmu = default_mmu;
 484                 }
 485                 target = target->next;
 486         }
 487
 488         if (targets)
 489         {
 490                 target_register_user_commands(cmd_ctx);
 491                 target_register_timer_callback(handle_target, 100, 1, NULL);
 492         }
 493
 494         return ERROR_OK;
 495 }
 496
 497 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 498 {
 499         target_event_callback_t **callbacks_p = &target_event_callbacks;
 500
 501         if (callback == NULL)
 502         {
 503                 return ERROR_INVALID_ARGUMENTS;
 504         }
 505
 506         if (*callbacks_p)
 507         {
 508                 while ((*callbacks_p)->next)
 509                         callbacks_p = &((*callbacks_p)->next);
 510                 callbacks_p = &((*callbacks_p)->next);
 511         }
 512
 513         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 514         (*callbacks_p)->callback = callback;
 515         (*callbacks_p)->priv = priv;
 516         (*callbacks_p)->next = NULL;
 517
 518         return ERROR_OK;
 519 }
 520
 521 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 522 {
 523         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 524         struct timeval now;
 525
 526         if (callback == NULL)
 527         {
 528                 return ERROR_INVALID_ARGUMENTS;
 529         }
 530
 531         if (*callbacks_p)
 532         {
 533                 while ((*callbacks_p)->next)
 534                         callbacks_p = &((*callbacks_p)->next);
 535                 callbacks_p = &((*callbacks_p)->next);
 536         }
 537
 538         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 539         (*callbacks_p)->callback = callback;
 540         (*callbacks_p)->periodic = periodic;
 541         (*callbacks_p)->time_ms = time_ms;
 542
 543         gettimeofday(&now, NULL);
 544         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 545         time_ms -= (time_ms % 1000);
 546         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 547         if ((*callbacks_p)->when.tv_usec > 1000000)
 548         {
 549                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 550                 (*callbacks_p)->when.tv_sec += 1;
 551         }
 552
 553         (*callbacks_p)->priv = priv;
 554         (*callbacks_p)->next = NULL;
 555
 556         return ERROR_OK;
 557 }
 558
 559 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 560 {
 561         target_event_callback_t **p = &target_event_callbacks;
 562         target_event_callback_t *c = target_event_callbacks;
 563
 564         if (callback == NULL)
 565         {
 566                 return ERROR_INVALID_ARGUMENTS;
 567         }
 568
 569         while (c)
 570         {
 571                 target_event_callback_t *next = c->next;
 572                 if ((c->callback == callback) && (c->priv == priv))
 573                 {
 574                         *p = next;
 575                         free(c);
 576                         return ERROR_OK;
 577                 }
 578                 else
 579                         p = &(c->next);
 580                 c = next;
 581         }
 582
 583         return ERROR_OK;
 584 }
 585
 586 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 587 {
 588         target_timer_callback_t **p = &target_timer_callbacks;
 589         target_timer_callback_t *c = target_timer_callbacks;
 590
 591         if (callback == NULL)
 592         {
 593                 return ERROR_INVALID_ARGUMENTS;
 594         }
 595
 596         while (c)
 597         {
 598                 target_timer_callback_t *next = c->next;
 599                 if ((c->callback == callback) && (c->priv == priv))
 600                 {
 601                         *p = next;
 602                         free(c);
 603                         return ERROR_OK;
 604                 }
 605                 else
 606                         p = &(c->next);
 607                 c = next;
 608         }
 609
 610         return ERROR_OK;
 611 }
 612
 613 int target_call_event_callbacks(target_t *target, enum target_event event)
 614 {
 615         target_event_callback_t *callback = target_event_callbacks;
 616         target_event_callback_t *next_callback;
 617
 618         LOG_DEBUG("target event %i", event);
 619
 620         while (callback)
 621         {
 622                 next_callback = callback->next;
 623                 callback->callback(target, event, callback->priv);
 624                 callback = next_callback;
 625         }
 626
 627         return ERROR_OK;
 628 }
 629
 630 static int target_call_timer_callbacks_check_time(int checktime)
 631 {
 632         target_timer_callback_t *callback = target_timer_callbacks;
 633         target_timer_callback_t *next_callback;
 634         struct timeval now;
 635
 636         gettimeofday(&now, NULL);
 637
 638         while (callback)
 639         {
 640                 next_callback = callback->next;
 641
 642                 if ((!checktime&&callback->periodic)||
 643                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 644                                                 || (now.tv_sec > callback->when.tv_sec)))
 645                 {
 646                         callback->callback(callback->priv);
 647                         if (callback->periodic)
 648                         {
 649                                 int time_ms = callback->time_ms;
 650                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 651                                 time_ms -= (time_ms % 1000);
 652                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 653                                 if (callback->when.tv_usec > 1000000)
 654                                 {
 655                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 656                                         callback->when.tv_sec += 1;
 657                                 }
 658                         }
 659                         else
 660                                 target_unregister_timer_callback(callback->callback, callback->priv);
 661                 }
 662
 663                 callback = next_callback;
 664         }
 665
 666         return ERROR_OK;
 667 }
 668
 669 int target_call_timer_callbacks()
 670 {
 671         return target_call_timer_callbacks_check_time(1);
 672 }
 673
 674 /* invoke periodic callbacks immediately */
 675 int target_call_timer_callbacks_now()
 676 {
 677         return target_call_timer_callbacks(0);
 678 }
 679
 680
 681 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 682 {
 683         working_area_t *c = target->working_areas;
 684         working_area_t *new_wa = NULL;
 685
 686         /* Reevaluate working area address based on MMU state*/
 687         if (target->working_areas == NULL)
 688         {
 689                 int retval;
 690                 int enabled;
 691                 retval = target->type->mmu(target, &enabled);
 692                 if (retval != ERROR_OK)
 693                 {
 694                         return retval;
 695                 }
 696                 if (enabled)
 697                 {
 698                         target->working_area = target->working_area_virt;
 699                 }
 700                 else
 701                 {
 702                         target->working_area = target->working_area_phys;
 703                 }
 704         }
 705
 706         /* only allocate multiples of 4 byte */
 707         if (size % 4)
 708         {
 709                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 710                 size = CEIL(size, 4);
 711         }
 712
 713         /* see if there's already a matching working area */
 714         while (c)
 715         {
 716                 if ((c->free) && (c->size == size))
 717                 {
 718                         new_wa = c;
 719                         break;
 720                 }
 721                 c = c->next;
 722         }
 723
 724         /* if not, allocate a new one */
 725         if (!new_wa)
 726         {
 727                 working_area_t **p = &target->working_areas;
 728                 u32 first_free = target->working_area;
 729                 u32 free_size = target->working_area_size;
 730
 731                 LOG_DEBUG("allocating new working area");
 732
 733                 c = target->working_areas;
 734                 while (c)
 735                 {
 736                         first_free += c->size;
 737                         free_size -= c->size;
 738                         p = &c->next;
 739                         c = c->next;
 740                 }
 741
 742                 if (free_size < size)
 743                 {
 744                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 745                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 746                 }
 747
 748                 new_wa = malloc(sizeof(working_area_t));
 749                 new_wa->next = NULL;
 750                 new_wa->size = size;
 751                 new_wa->address = first_free;
 752
 753                 if (target->backup_working_area)
 754                 {
 755                         new_wa->backup = malloc(new_wa->size);
 756                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 757                 }
 758                 else
 759                 {
 760                         new_wa->backup = NULL;
 761                 }
 762
 763                 /* put new entry in list */
 764                 *p = new_wa;
 765         }
 766
 767         /* mark as used, and return the new (reused) area */
 768         new_wa->free = 0;
 769         *area = new_wa;
 770
 771         /* user pointer */
 772         new_wa->user = area;
 773
 774         return ERROR_OK;
 775 }
 776
 777 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 778 {
 779         if (area->free)
 780                 return ERROR_OK;
 781
 782         if (restore&&target->backup_working_area)
 783                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 784
 785         area->free = 1;
 786
 787         /* mark user pointer invalid */
 788         *area->user = NULL;
 789         area->user = NULL;
 790
 791         return ERROR_OK;
 792 }
 793
 794 int target_free_working_area(struct target_s *target, working_area_t *area)
 795 {
 796         return target_free_working_area_restore(target, area, 1);
 797 }
 798
 799 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 800 {
 801         working_area_t *c = target->working_areas;
 802
 803         while (c)
 804         {
 805                 working_area_t *next = c->next;
 806                 target_free_working_area_restore(target, c, restore);
 807
 808                 if (c->backup)
 809                         free(c->backup);
 810
 811                 free(c);
 812
 813                 c = next;
 814         }
 815
 816         target->working_areas = NULL;
 817
 818         return ERROR_OK;
 819 }
 820
 821 int target_free_all_working_areas(struct target_s *target)
 822 {
 823         return target_free_all_working_areas_restore(target, 1);
 824 }
 825
 826 int target_register_commands(struct command_context_s *cmd_ctx)
 827 {
 828         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 829         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 830         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 831         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 832         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 833         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 834         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 835
 836         return ERROR_OK;
 837 }
 838
 839 int target_arch_state(struct target_s *target)
 840 {
 841         int retval;
 842         if (target==NULL)
 843         {
 844                 LOG_USER("No target has been configured");
 845                 return ERROR_OK;
 846         }
 847
 848         LOG_USER("target state: %s", target_state_strings[target->state]);
 849
 850         if (target->state!=TARGET_HALTED)
 851                 return ERROR_OK;
 852
 853         retval=target->type->arch_state(target);
 854         return retval;
 855 }
 856
 857 /* Single aligned words are guaranteed to use 16 or 32 bit access
 858  * mode respectively, otherwise data is handled as quickly as
 859  * possible
 860  */
 861 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 862 {
 863         int retval;
 864
 865         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 866
 867         if (((address % 2) == 0) && (size == 2))
 868         {
 869                 return target->type->write_memory(target, address, 2, 1, buffer);
 870         }
 871
 872         /* handle unaligned head bytes */
 873         if (address % 4)
 874         {
 875                 int unaligned = 4 - (address % 4);
 876
 877                 if (unaligned > size)
 878                         unaligned = size;
 879
 880                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 881                         return retval;
 882
 883                 buffer += unaligned;
 884                 address += unaligned;
 885                 size -= unaligned;
 886         }
 887
 888         /* handle aligned words */
 889         if (size >= 4)
 890         {
 891                 int aligned = size - (size % 4);
 892
 893                 /* use bulk writes above a certain limit. This may have to be changed */
 894                 if (aligned > 128)
 895                 {
 896                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 897                                 return retval;
 898                 }
 899                 else
 900                 {
 901                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 902                                 return retval;
 903                 }
 904
 905                 buffer += aligned;
 906                 address += aligned;
 907                 size -= aligned;
 908         }
 909
 910         /* handle tail writes of less than 4 bytes */
 911         if (size > 0)
 912         {
 913                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 914                         return retval;
 915         }
 916
 917         return ERROR_OK;
 918 }
 919
 920
 921 /* Single aligned words are guaranteed to use 16 or 32 bit access
 922  * mode respectively, otherwise data is handled as quickly as
 923  * possible
 924  */
 925 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 926 {
 927         int retval;
 928
 929         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 930
 931         if (((address % 2) == 0) && (size == 2))
 932         {
 933                 return target->type->read_memory(target, address, 2, 1, buffer);
 934         }
 935
 936         /* handle unaligned head bytes */
 937         if (address % 4)
 938         {
 939                 int unaligned = 4 - (address % 4);
 940
 941                 if (unaligned > size)
 942                         unaligned = size;
 943
 944                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 945                         return retval;
 946
 947                 buffer += unaligned;
 948                 address += unaligned;
 949                 size -= unaligned;
 950         }
 951
 952         /* handle aligned words */
 953         if (size >= 4)
 954         {
 955                 int aligned = size - (size % 4);
 956
 957                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 958                         return retval;
 959
 960                 buffer += aligned;
 961                 address += aligned;
 962                 size -= aligned;
 963         }
 964
 965         /* handle tail writes of less than 4 bytes */
 966         if (size > 0)
 967         {
 968                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 969                         return retval;
 970         }
 971
 972         return ERROR_OK;
 973 }
 974
 975 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
 976 {
 977         u8 *buffer;
 978         int retval;
 979         int i;
 980         u32 checksum = 0;
 981
 982         if ((retval = target->type->checksum_memory(target, address,
 983                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
 984         {
 985                 buffer = malloc(size);
 986                 if (buffer == NULL)
 987                 {
 988                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
 989                         return ERROR_INVALID_ARGUMENTS;
 990                 }
 991                 retval = target_read_buffer(target, address, size, buffer);
 992                 if (retval != ERROR_OK)
 993                 {
 994                         free(buffer);
 995                         return retval;
 996                 }
 997
 998                 /* convert to target endianess */
 999                 for (i = 0; i < (size/sizeof(u32)); i++)
1000                 {
1001                         u32 target_data;
1002                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
1003                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
1004                 }
1005
1006                 retval = image_calculate_checksum( buffer, size, &checksum );
1007                 free(buffer);
1008         }
1009
1010         *crc = checksum;
1011
1012         return retval;
1013 }
1014
1015 int target_read_u32(struct target_s *target, u32 address, u32 *value)
1016 {
1017         u8 value_buf[4];
1018
1019         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
1020
1021         if (retval == ERROR_OK)
1022         {
1023                 *value = target_buffer_get_u32(target, value_buf);
1024                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1025         }
1026         else
1027         {
1028                 *value = 0x0;
1029                 LOG_DEBUG("address: 0x%8.8x failed", address);
1030         }
1031
1032         return retval;
1033 }
1034
1035 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1036 {
1037         u8 value_buf[2];
1038
1039         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1040
1041         if (retval == ERROR_OK)
1042         {
1043                 *value = target_buffer_get_u16(target, value_buf);
1044                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1045         }
1046         else
1047         {
1048                 *value = 0x0;
1049                 LOG_DEBUG("address: 0x%8.8x failed", address);
1050         }
1051
1052         return retval;
1053 }
1054
1055 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1056 {
1057         int retval = target->type->read_memory(target, address, 1, 1, value);
1058
1059         if (retval == ERROR_OK)
1060         {
1061                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1062         }
1063         else
1064         {
1065                 *value = 0x0;
1066                 LOG_DEBUG("address: 0x%8.8x failed", address);
1067         }
1068
1069         return retval;
1070 }
1071
1072 int target_write_u32(struct target_s *target, u32 address, u32 value)
1073 {
1074         int retval;
1075         u8 value_buf[4];
1076
1077         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1078
1079         target_buffer_set_u32(target, value_buf, value);
1080         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1081         {
1082                 LOG_DEBUG("failed: %i", retval);
1083         }
1084
1085         return retval;
1086 }
1087
1088 int target_write_u16(struct target_s *target, u32 address, u16 value)
1089 {
1090         int retval;
1091         u8 value_buf[2];
1092
1093         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1094
1095         target_buffer_set_u16(target, value_buf, value);
1096         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1097         {
1098                 LOG_DEBUG("failed: %i", retval);
1099         }
1100
1101         return retval;
1102 }
1103
1104 int target_write_u8(struct target_s *target, u32 address, u8 value)
1105 {
1106         int retval;
1107
1108         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1109
1110         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1111         {
1112                 LOG_DEBUG("failed: %i", retval);
1113         }
1114
1115         return retval;
1116 }
1117
1118 int target_register_user_commands(struct command_context_s *cmd_ctx)
1119 {
1120         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1121         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1122         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1123         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1124         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1125         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1126         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1127         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1128
1129         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1130         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1131         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1132
1133         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1134         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1135         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1136
1137         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1138         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1139         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1140         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1141
1142         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1143         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1144         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1145         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1146         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1147
1148         target_request_register_commands(cmd_ctx);
1149         trace_register_commands(cmd_ctx);
1150
1151         return ERROR_OK;
1152 }
1153
1154 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1155 {
1156         target_t *target = targets;
1157         int count = 0;
1158
1159         if (argc == 1)
1160         {
1161                 int num = strtoul(args[0], NULL, 0);
1162
1163                 while (target)
1164                 {
1165                         count++;
1166                         target = target->next;
1167                 }
1168
1169                 if (num < count)
1170                         cmd_ctx->current_target = num;
1171                 else
1172                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1173
1174                 return ERROR_OK;
1175         }
1176
1177         while (target)
1178         {
1179                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1180                 target = target->next;
1181         }
1182
1183         return ERROR_OK;
1184 }
1185
1186 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1187 {
1188         int i;
1189         int found = 0;
1190
1191         if (argc < 3)
1192         {
1193                 return ERROR_COMMAND_SYNTAX_ERROR;
1194         }
1195
1196         /* search for the specified target */
1197         if (args[0] && (args[0][0] != 0))
1198         {
1199                 for (i = 0; target_types[i]; i++)
1200                 {
1201                         if (strcmp(args[0], target_types[i]->name) == 0)
1202                         {
1203                                 target_t **last_target_p = &targets;
1204
1205                                 /* register target specific commands */
1206                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1207                                 {
1208                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1209                                         exit(-1);
1210                                 }
1211
1212                                 if (*last_target_p)
1213                                 {
1214                                         while ((*last_target_p)->next)
1215                                                 last_target_p = &((*last_target_p)->next);
1216                                         last_target_p = &((*last_target_p)->next);
1217                                 }
1218
1219                                 *last_target_p = malloc(sizeof(target_t));
1220
1221                                 (*last_target_p)->type = target_types[i];
1222
1223                                 if (strcmp(args[1], "big") == 0)
1224                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1225                                 else if (strcmp(args[1], "little") == 0)
1226                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1227                                 else
1228                                 {
1229                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1230                                         return ERROR_COMMAND_SYNTAX_ERROR;
1231                                 }
1232
1233                                 /* what to do on a target reset */
1234                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1235                                 if (strcmp(args[2], "reset_halt") == 0)
1236                                         (*last_target_p)->reset_mode = RESET_HALT;
1237                                 else if (strcmp(args[2], "reset_run") == 0)
1238                                         (*last_target_p)->reset_mode = RESET_RUN;
1239                                 else if (strcmp(args[2], "reset_init") == 0)
1240                                         (*last_target_p)->reset_mode = RESET_INIT;
1241                                 else if (strcmp(args[2], "run_and_halt") == 0)
1242                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1243                                 else if (strcmp(args[2], "run_and_init") == 0)
1244                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1245                                 else
1246                                 {
1247                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1248                                         args--;
1249                                         argc++;
1250                                 }
1251                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1252
1253                                 (*last_target_p)->reset_script = NULL;
1254                                 (*last_target_p)->post_halt_script = NULL;
1255                                 (*last_target_p)->pre_resume_script = NULL;
1256                                 (*last_target_p)->gdb_program_script = NULL;
1257
1258                                 (*last_target_p)->working_area = 0x0;
1259                                 (*last_target_p)->working_area_size = 0x0;
1260                                 (*last_target_p)->working_areas = NULL;
1261                                 (*last_target_p)->backup_working_area = 0;
1262
1263                                 (*last_target_p)->state = TARGET_UNKNOWN;
1264                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1265                                 (*last_target_p)->reg_cache = NULL;
1266                                 (*last_target_p)->breakpoints = NULL;
1267                                 (*last_target_p)->watchpoints = NULL;
1268                                 (*last_target_p)->next = NULL;
1269                                 (*last_target_p)->arch_info = NULL;
1270
1271                                 /* initialize trace information */
1272                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1273                                 (*last_target_p)->trace_info->num_trace_points = 0;
1274                                 (*last_target_p)->trace_info->trace_points_size = 0;
1275                                 (*last_target_p)->trace_info->trace_points = NULL;
1276                                 (*last_target_p)->trace_info->trace_history_size = 0;
1277                                 (*last_target_p)->trace_info->trace_history = NULL;
1278                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1279                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1280
1281                                 (*last_target_p)->dbgmsg = NULL;
1282                                 (*last_target_p)->dbg_msg_enabled = 0;
1283
1284                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1285
1286                                 found = 1;
1287                                 break;
1288                         }
1289                 }
1290         }
1291
1292         /* no matching target found */
1293         if (!found)
1294         {
1295                 LOG_ERROR("target '%s' not found", args[0]);
1296                 return ERROR_COMMAND_SYNTAX_ERROR;
1297         }
1298
1299         return ERROR_OK;
1300 }
1301
1302 /* usage: target_script <target#> <event> <script_file> */
1303 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1304 {
1305         target_t *target = NULL;
1306
1307         if (argc < 3)
1308         {
1309                 LOG_ERROR("incomplete target_script command");
1310                 return ERROR_COMMAND_SYNTAX_ERROR;
1311         }
1312
1313         target = get_target_by_num(strtoul(args[0], NULL, 0));
1314
1315         if (!target)
1316         {
1317                 return ERROR_COMMAND_SYNTAX_ERROR;
1318         }
1319
1320         if (strcmp(args[1], "reset") == 0)
1321         {
1322                 if (target->reset_script)
1323                         free(target->reset_script);
1324                 target->reset_script = strdup(args[2]);
1325         }
1326         else if (strcmp(args[1], "post_halt") == 0)
1327         {
1328                 if (target->post_halt_script)
1329                         free(target->post_halt_script);
1330                 target->post_halt_script = strdup(args[2]);
1331         }
1332         else if (strcmp(args[1], "pre_resume") == 0)
1333         {
1334                 if (target->pre_resume_script)
1335                         free(target->pre_resume_script);
1336                 target->pre_resume_script = strdup(args[2]);
1337         }
1338         else if (strcmp(args[1], "gdb_program_config") == 0)
1339         {
1340                 if (target->gdb_program_script)
1341                         free(target->gdb_program_script);
1342                 target->gdb_program_script = strdup(args[2]);
1343         }
1344         else
1345         {
1346                 LOG_ERROR("unknown event type: '%s", args[1]);
1347                 return ERROR_COMMAND_SYNTAX_ERROR;
1348         }
1349
1350         return ERROR_OK;
1351 }
1352
1353 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1354 {
1355         target_t *target = NULL;
1356
1357         if (argc < 2)
1358         {
1359                 return ERROR_COMMAND_SYNTAX_ERROR;
1360         }
1361
1362         target = get_target_by_num(strtoul(args[0], NULL, 0));
1363         if (!target)
1364         {
1365                 return ERROR_COMMAND_SYNTAX_ERROR;
1366         }
1367
1368         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1369
1370         return ERROR_OK;
1371 }
1372
1373 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1374 {
1375         target_t *target = NULL;
1376
1377         if ((argc < 4) || (argc > 5))
1378         {
1379                 return ERROR_COMMAND_SYNTAX_ERROR;
1380         }
1381
1382         target = get_target_by_num(strtoul(args[0], NULL, 0));
1383         if (!target)
1384         {
1385                 return ERROR_COMMAND_SYNTAX_ERROR;
1386         }
1387         target_free_all_working_areas(target);
1388
1389         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1390         if (argc == 5)
1391         {
1392                 target->working_area_virt = strtoul(args[4], NULL, 0);
1393         }
1394         target->working_area_size = strtoul(args[2], NULL, 0);
1395
1396         if (strcmp(args[3], "backup") == 0)
1397         {
1398                 target->backup_working_area = 1;
1399         }
1400         else if (strcmp(args[3], "nobackup") == 0)
1401         {
1402                 target->backup_working_area = 0;
1403         }
1404         else
1405         {
1406                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1407                 return ERROR_COMMAND_SYNTAX_ERROR;
1408         }
1409
1410         return ERROR_OK;
1411 }
1412
1413
1414 /* process target state changes */
1415 int handle_target(void *priv)
1416 {
1417         int retval;
1418         target_t *target = targets;
1419
1420         while (target)
1421         {
1422                 /* only poll if target isn't already halted */
1423                 if (target->state != TARGET_HALTED)
1424                 {
1425                         if (target_continous_poll)
1426                                 if ((retval = target->type->poll(target)) != ERROR_OK)
1427                                 {
1428                                         LOG_ERROR("couldn't poll target(%d). It's due for a reset.", retval);
1429                                 }
1430                 }
1431
1432                 target = target->next;
1433         }
1434
1435         return ERROR_OK;
1436 }
1437
1438 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1439 {
1440         target_t *target;
1441         reg_t *reg = NULL;
1442         int count = 0;
1443         char *value;
1444
1445         LOG_DEBUG("-");
1446
1447         target = get_current_target(cmd_ctx);
1448
1449         /* list all available registers for the current target */
1450         if (argc == 0)
1451         {
1452                 reg_cache_t *cache = target->reg_cache;
1453
1454                 count = 0;
1455                 while(cache)
1456                 {
1457                         int i;
1458                         for (i = 0; i < cache->num_regs; i++)
1459                         {
1460                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1461                                 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);
1462                                 free(value);
1463                         }
1464                         cache = cache->next;
1465                 }
1466
1467                 return ERROR_OK;
1468         }
1469
1470         /* access a single register by its ordinal number */
1471         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1472         {
1473                 int num = strtoul(args[0], NULL, 0);
1474                 reg_cache_t *cache = target->reg_cache;
1475
1476                 count = 0;
1477                 while(cache)
1478                 {
1479                         int i;
1480                         for (i = 0; i < cache->num_regs; i++)
1481                         {
1482                                 if (count++ == num)
1483                                 {
1484                                         reg = &cache->reg_list[i];
1485                                         break;
1486                                 }
1487                         }
1488                         if (reg)
1489                                 break;
1490                         cache = cache->next;
1491                 }
1492
1493                 if (!reg)
1494                 {
1495                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1496                         return ERROR_OK;
1497                 }
1498         } else /* access a single register by its name */
1499         {
1500                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1501
1502                 if (!reg)
1503                 {
1504                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1505                         return ERROR_OK;
1506                 }
1507         }
1508
1509         /* display a register */
1510         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1511         {
1512                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1513                         reg->valid = 0;
1514
1515                 if (reg->valid == 0)
1516                 {
1517                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1518                         if (arch_type == NULL)
1519                         {
1520                                 LOG_ERROR("BUG: encountered unregistered arch type");
1521                                 return ERROR_OK;
1522                         }
1523                         arch_type->get(reg);
1524                 }
1525                 value = buf_to_str(reg->value, reg->size, 16);
1526                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1527                 free(value);
1528                 return ERROR_OK;
1529         }
1530
1531         /* set register value */
1532         if (argc == 2)
1533         {
1534                 u8 *buf = malloc(CEIL(reg->size, 8));
1535                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1536
1537                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1538                 if (arch_type == NULL)
1539                 {
1540                         LOG_ERROR("BUG: encountered unregistered arch type");
1541                         return ERROR_OK;
1542                 }
1543
1544                 arch_type->set(reg, buf);
1545
1546                 value = buf_to_str(reg->value, reg->size, 16);
1547                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1548                 free(value);
1549
1550                 free(buf);
1551
1552                 return ERROR_OK;
1553         }
1554
1555         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1556
1557         return ERROR_OK;
1558 }
1559
1560 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1561
1562 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1563 {
1564         target_t *target = get_current_target(cmd_ctx);
1565
1566         if (argc == 0)
1567         {
1568                 target->type->poll(target);
1569                 target_arch_state(target);
1570         }
1571         else
1572         {
1573                 if (strcmp(args[0], "on") == 0)
1574                 {
1575                         target_continous_poll = 1;
1576                 }
1577                 else if (strcmp(args[0], "off") == 0)
1578                 {
1579                         target_continous_poll = 0;
1580                 }
1581                 else
1582                 {
1583                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1584                 }
1585         }
1586
1587
1588         return ERROR_OK;
1589 }
1590
1591 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1592 {
1593         int ms = 5000;
1594
1595         if (argc > 0)
1596         {
1597                 char *end;
1598
1599                 ms = strtoul(args[0], &end, 0) * 1000;
1600                 if (*end)
1601                 {
1602                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1603                         return ERROR_OK;
1604                 }
1605         }
1606
1607         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1608 }
1609
1610 static void target_process_events(struct command_context_s *cmd_ctx)
1611 {
1612         target_t *target = get_current_target(cmd_ctx);
1613         target->type->poll(target);
1614         target_call_timer_callbacks_now();
1615 }
1616
1617 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1618 {
1619         int retval;
1620         struct timeval timeout, now;
1621         int once=1;
1622         gettimeofday(&timeout, NULL);
1623         timeval_add_time(&timeout, 0, ms * 1000);
1624
1625         target_t *target = get_current_target(cmd_ctx);
1626         for (;;)
1627         {
1628                 if ((retval=target->type->poll(target))!=ERROR_OK)
1629                         return retval;
1630                 target_call_timer_callbacks_now();
1631                 if (target->state == state)
1632                 {
1633                         break;
1634                 }
1635                 if (once)
1636                 {
1637                         once=0;
1638                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1639                 }
1640
1641                 gettimeofday(&now, NULL);
1642                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1643                 {
1644                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1645                         break;
1646                 }
1647         }
1648
1649         return ERROR_OK;
1650 }
1651
1652 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1653 {
1654         int retval;
1655         target_t *target = get_current_target(cmd_ctx);
1656
1657         LOG_DEBUG("-");
1658
1659         if ((retval = target->type->halt(target)) != ERROR_OK)
1660         {
1661                 return retval;
1662         }
1663
1664         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1665 }
1666
1667
1668 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1669 {
1670         target_t *target = get_current_target(cmd_ctx);
1671
1672         LOG_USER("requesting target halt and executing a soft reset");
1673
1674         target->type->soft_reset_halt(target);
1675
1676         return ERROR_OK;
1677 }
1678
1679 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1680 {
1681         target_t *target = get_current_target(cmd_ctx);
1682         enum target_reset_mode reset_mode = target->reset_mode;
1683         enum target_reset_mode save = target->reset_mode;
1684
1685         LOG_DEBUG("-");
1686
1687         if (argc >= 1)
1688         {
1689                 if (strcmp("run", args[0]) == 0)
1690                         reset_mode = RESET_RUN;
1691                 else if (strcmp("halt", args[0]) == 0)
1692                         reset_mode = RESET_HALT;
1693                 else if (strcmp("init", args[0]) == 0)
1694                         reset_mode = RESET_INIT;
1695                 else if (strcmp("run_and_halt", args[0]) == 0)
1696                 {
1697                         reset_mode = RESET_RUN_AND_HALT;
1698                         if (argc >= 2)
1699                         {
1700                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1701                         }
1702                 }
1703                 else if (strcmp("run_and_init", args[0]) == 0)
1704                 {
1705                         reset_mode = RESET_RUN_AND_INIT;
1706                         if (argc >= 2)
1707                         {
1708                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1709                         }
1710                 }
1711                 else
1712                 {
1713                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1714                         return ERROR_OK;
1715                 }
1716         }
1717
1718         /* temporarily modify mode of current reset target */
1719         target->reset_mode = reset_mode;
1720
1721         /* reset *all* targets */
1722         target_process_reset(cmd_ctx);
1723
1724         /* Restore default reset mode for this target */
1725     target->reset_mode = save;
1726
1727         return ERROR_OK;
1728 }
1729
1730 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1731 {
1732         int retval;
1733         target_t *target = get_current_target(cmd_ctx);
1734
1735         if (argc == 0)
1736                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1737         else if (argc == 1)
1738                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1739         else
1740         {
1741                 return ERROR_COMMAND_SYNTAX_ERROR;
1742         }
1743
1744         target_process_events(cmd_ctx);
1745
1746         return retval;
1747 }
1748
1749 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1750 {
1751         target_t *target = get_current_target(cmd_ctx);
1752
1753         LOG_DEBUG("-");
1754
1755         if (argc == 0)
1756                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1757
1758         if (argc == 1)
1759                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1760
1761         return ERROR_OK;
1762 }
1763
1764 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1765 {
1766         const int line_bytecnt = 32;
1767         int count = 1;
1768         int size = 4;
1769         u32 address = 0;
1770         int line_modulo;
1771         int i;
1772
1773         char output[128];
1774         int output_len;
1775
1776         int retval;
1777
1778         u8 *buffer;
1779         target_t *target = get_current_target(cmd_ctx);
1780
1781         if (argc < 1)
1782                 return ERROR_OK;
1783
1784         if (argc == 2)
1785                 count = strtoul(args[1], NULL, 0);
1786
1787         address = strtoul(args[0], NULL, 0);
1788
1789
1790         switch (cmd[2])
1791         {
1792                 case 'w':
1793                         size = 4; line_modulo = line_bytecnt / 4;
1794                         break;
1795                 case 'h':
1796                         size = 2; line_modulo = line_bytecnt / 2;
1797                         break;
1798                 case 'b':
1799                         size = 1; line_modulo = line_bytecnt / 1;
1800                         break;
1801                 default:
1802                         return ERROR_OK;
1803         }
1804
1805         buffer = calloc(count, size);
1806         retval  = target->type->read_memory(target, address, size, count, buffer);
1807         if (retval == ERROR_OK)
1808         {
1809                 output_len = 0;
1810
1811                 for (i = 0; i < count; i++)
1812                 {
1813                         if (i%line_modulo == 0)
1814                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1815
1816                         switch (size)
1817                         {
1818                                 case 4:
1819                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1820                                         break;
1821                                 case 2:
1822                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1823                                         break;
1824                                 case 1:
1825                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1826                                         break;
1827                         }
1828
1829                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1830                         {
1831                                 command_print(cmd_ctx, output);
1832                                 output_len = 0;
1833                         }
1834                 }
1835         } else
1836         {
1837                 LOG_ERROR("Failure examining memory");
1838         }
1839
1840         free(buffer);
1841
1842         return ERROR_OK;
1843 }
1844
1845 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1846 {
1847         u32 address = 0;
1848         u32 value = 0;
1849         int count = 1;
1850         int i;
1851         int wordsize;
1852         target_t *target = get_current_target(cmd_ctx);
1853         u8 value_buf[4];
1854
1855          if ((argc < 2) || (argc > 3))
1856                 return ERROR_COMMAND_SYNTAX_ERROR;
1857
1858         address = strtoul(args[0], NULL, 0);
1859         value = strtoul(args[1], NULL, 0);
1860         if (argc == 3)
1861                 count = strtoul(args[2], NULL, 0);
1862
1863
1864         switch (cmd[2])
1865         {
1866                 case 'w':
1867                         wordsize = 4;
1868                         target_buffer_set_u32(target, value_buf, value);
1869                         break;
1870                 case 'h':
1871                         wordsize = 2;
1872                         target_buffer_set_u16(target, value_buf, value);
1873                         break;
1874                 case 'b':
1875                         wordsize = 1;
1876                         value_buf[0] = value;
1877                         break;
1878                 default:
1879                         return ERROR_COMMAND_SYNTAX_ERROR;
1880         }
1881         for (i=0; i<count; i++)
1882         {
1883                 int retval;
1884                 switch (wordsize)
1885                 {
1886                         case 4:
1887                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1888                                 break;
1889                         case 2:
1890                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1891                                 break;
1892                         case 1:
1893                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
1894                         break;
1895                         default:
1896                         return ERROR_OK;
1897                 }
1898                 if (retval!=ERROR_OK)
1899                 {
1900                         return retval;
1901                 }
1902         }
1903
1904         return ERROR_OK;
1905
1906 }
1907
1908 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1909 {
1910         u8 *buffer;
1911         u32 buf_cnt;
1912         u32 image_size;
1913         int i;
1914         int retval;
1915
1916         image_t image;
1917
1918         duration_t duration;
1919         char *duration_text;
1920
1921         target_t *target = get_current_target(cmd_ctx);
1922
1923         if (argc < 1)
1924         {
1925                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1926                 return ERROR_OK;
1927         }
1928
1929         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1930         if (argc >= 2)
1931         {
1932                 image.base_address_set = 1;
1933                 image.base_address = strtoul(args[1], NULL, 0);
1934         }
1935         else
1936         {
1937                 image.base_address_set = 0;
1938         }
1939
1940         image.start_address_set = 0;
1941
1942         duration_start_measure(&duration);
1943
1944         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1945         {
1946                 return ERROR_OK;
1947         }
1948
1949         image_size = 0x0;
1950         retval = ERROR_OK;
1951         for (i = 0; i < image.num_sections; i++)
1952         {
1953                 buffer = malloc(image.sections[i].size);
1954                 if (buffer == NULL)
1955                 {
1956                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1957                         break;
1958                 }
1959
1960                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1961                 {
1962                         free(buffer);
1963                         break;
1964                 }
1965                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
1966                 {
1967                         free(buffer);
1968                         break;
1969                 }
1970                 image_size += buf_cnt;
1971                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1972
1973                 free(buffer);
1974         }
1975
1976         duration_stop_measure(&duration, &duration_text);
1977         if (retval==ERROR_OK)
1978         {
1979                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1980         }
1981         free(duration_text);
1982
1983         image_close(&image);
1984
1985         return retval;
1986
1987 }
1988
1989 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1990 {
1991         fileio_t fileio;
1992
1993         u32 address;
1994         u32 size;
1995         u8 buffer[560];
1996         int retval=ERROR_OK;
1997
1998         duration_t duration;
1999         char *duration_text;
2000
2001         target_t *target = get_current_target(cmd_ctx);
2002
2003         if (argc != 3)
2004         {
2005                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2006                 return ERROR_OK;
2007         }
2008
2009         address = strtoul(args[1], NULL, 0);
2010         size = strtoul(args[2], NULL, 0);
2011
2012         if ((address & 3) || (size & 3))
2013         {
2014                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
2015                 return ERROR_OK;
2016         }
2017
2018         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2019         {
2020                 return ERROR_OK;
2021         }
2022
2023         duration_start_measure(&duration);
2024
2025         while (size > 0)
2026         {
2027                 u32 size_written;
2028                 u32 this_run_size = (size > 560) ? 560 : size;
2029
2030                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2031                 if (retval != ERROR_OK)
2032                 {
2033                         break;
2034                 }
2035
2036                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2037                 if (retval != ERROR_OK)
2038                 {
2039                         break;
2040                 }
2041
2042                 size -= this_run_size;
2043                 address += this_run_size;
2044         }
2045
2046         fileio_close(&fileio);
2047
2048         duration_stop_measure(&duration, &duration_text);
2049         if (retval==ERROR_OK)
2050         {
2051                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2052         }
2053         free(duration_text);
2054
2055         return ERROR_OK;
2056 }
2057
2058 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2059 {
2060         u8 *buffer;
2061         u32 buf_cnt;
2062         u32 image_size;
2063         int i;
2064         int retval;
2065         u32 checksum = 0;
2066         u32 mem_checksum = 0;
2067
2068         image_t image;
2069
2070         duration_t duration;
2071         char *duration_text;
2072
2073         target_t *target = get_current_target(cmd_ctx);
2074
2075         if (argc < 1)
2076         {
2077                 return ERROR_COMMAND_SYNTAX_ERROR;
2078         }
2079
2080         if (!target)
2081         {
2082                 LOG_ERROR("no target selected");
2083                 return ERROR_FAIL;
2084         }
2085
2086         duration_start_measure(&duration);
2087
2088         if (argc >= 2)
2089         {
2090                 image.base_address_set = 1;
2091                 image.base_address = strtoul(args[1], NULL, 0);
2092         }
2093         else
2094         {
2095                 image.base_address_set = 0;
2096                 image.base_address = 0x0;
2097         }
2098
2099         image.start_address_set = 0;
2100
2101         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2102         {
2103                 return retval;
2104         }
2105
2106         image_size = 0x0;
2107         retval=ERROR_OK;
2108         for (i = 0; i < image.num_sections; i++)
2109         {
2110                 buffer = malloc(image.sections[i].size);
2111                 if (buffer == NULL)
2112                 {
2113                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2114                         break;
2115                 }
2116                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2117                 {
2118                         free(buffer);
2119                         break;
2120                 }
2121
2122                 /* calculate checksum of image */
2123                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2124
2125                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2126                 if( retval != ERROR_OK )
2127                 {
2128                         free(buffer);
2129                         break;
2130                 }
2131
2132                 if( checksum != mem_checksum )
2133                 {
2134                         /* failed crc checksum, fall back to a binary compare */
2135                         u8 *data;
2136
2137                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2138
2139                         data = (u8*)malloc(buf_cnt);
2140
2141                         /* Can we use 32bit word accesses? */
2142                         int size = 1;
2143                         int count = buf_cnt;
2144                         if ((count % 4) == 0)
2145                         {
2146                                 size *= 4;
2147                                 count /= 4;
2148                         }
2149                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2150                         if (retval == ERROR_OK)
2151                         {
2152                                 int t;
2153                                 for (t = 0; t < buf_cnt; t++)
2154                                 {
2155                                         if (data[t] != buffer[t])
2156                                         {
2157                                                 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]);
2158                                                 free(data);
2159                                                 free(buffer);
2160                                                 retval=ERROR_FAIL;
2161                                                 goto done;
2162                                         }
2163                                 }
2164                         }
2165
2166                         free(data);
2167                 }
2168
2169                 free(buffer);
2170                 image_size += buf_cnt;
2171         }
2172 done:
2173         duration_stop_measure(&duration, &duration_text);
2174         if (retval==ERROR_OK)
2175         {
2176                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2177         }
2178         free(duration_text);
2179
2180         image_close(&image);
2181
2182         return retval;
2183 }
2184
2185 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2186 {
2187         int retval;
2188         target_t *target = get_current_target(cmd_ctx);
2189
2190         if (argc == 0)
2191         {
2192                 breakpoint_t *breakpoint = target->breakpoints;
2193
2194                 while (breakpoint)
2195                 {
2196                         if (breakpoint->type == BKPT_SOFT)
2197                         {
2198                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2199                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2200                                 free(buf);
2201                         }
2202                         else
2203                         {
2204                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2205                         }
2206                         breakpoint = breakpoint->next;
2207                 }
2208         }
2209         else if (argc >= 2)
2210         {
2211                 int hw = BKPT_SOFT;
2212                 u32 length = 0;
2213
2214                 length = strtoul(args[1], NULL, 0);
2215
2216                 if (argc >= 3)
2217                         if (strcmp(args[2], "hw") == 0)
2218                                 hw = BKPT_HARD;
2219
2220                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2221                 {
2222                         LOG_ERROR("Failure setting breakpoints");
2223                 }
2224                 else
2225                 {
2226                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2227                 }
2228         }
2229         else
2230         {
2231                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2232         }
2233
2234         return ERROR_OK;
2235 }
2236
2237 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2238 {
2239         target_t *target = get_current_target(cmd_ctx);
2240
2241         if (argc > 0)
2242                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2243
2244         return ERROR_OK;
2245 }
2246
2247 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2248 {
2249         target_t *target = get_current_target(cmd_ctx);
2250         int retval;
2251
2252         if (argc == 0)
2253         {
2254                 watchpoint_t *watchpoint = target->watchpoints;
2255
2256                 while (watchpoint)
2257                 {
2258                         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);
2259                         watchpoint = watchpoint->next;
2260                 }
2261         }
2262         else if (argc >= 2)
2263         {
2264                 enum watchpoint_rw type = WPT_ACCESS;
2265                 u32 data_value = 0x0;
2266                 u32 data_mask = 0xffffffff;
2267
2268                 if (argc >= 3)
2269                 {
2270                         switch(args[2][0])
2271                         {
2272                                 case 'r':
2273                                         type = WPT_READ;
2274                                         break;
2275                                 case 'w':
2276                                         type = WPT_WRITE;
2277                                         break;
2278                                 case 'a':
2279                                         type = WPT_ACCESS;
2280                                         break;
2281                                 default:
2282                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2283                                         return ERROR_OK;
2284                         }
2285                 }
2286                 if (argc >= 4)
2287                 {
2288                         data_value = strtoul(args[3], NULL, 0);
2289                 }
2290                 if (argc >= 5)
2291                 {
2292                         data_mask = strtoul(args[4], NULL, 0);
2293                 }
2294
2295                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2296                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2297                 {
2298                         LOG_ERROR("Failure setting breakpoints");
2299                 }
2300         }
2301         else
2302         {
2303                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2304         }
2305
2306         return ERROR_OK;
2307 }
2308
2309 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2310 {
2311         target_t *target = get_current_target(cmd_ctx);
2312
2313         if (argc > 0)
2314                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2315
2316         return ERROR_OK;
2317 }
2318
2319 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2320 {
2321         int retval;
2322         target_t *target = get_current_target(cmd_ctx);
2323         u32 va;
2324         u32 pa;
2325
2326         if (argc != 1)
2327         {
2328                 return ERROR_COMMAND_SYNTAX_ERROR;
2329         }
2330         va = strtoul(args[0], NULL, 0);
2331
2332         retval = target->type->virt2phys(target, va, &pa);
2333         if (retval == ERROR_OK)
2334         {
2335                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2336         }
2337         else
2338         {
2339                 /* lower levels will have logged a detailed error which is
2340                  * forwarded to telnet/GDB session.
2341                  */
2342         }
2343         return retval;
2344 }
2345 static void writeLong(FILE *f, int l)
2346 {
2347         int i;
2348         for (i=0; i<4; i++)
2349         {
2350                 char c=(l>>(i*8))&0xff;
2351                 fwrite(&c, 1, 1, f);
2352         }
2353
2354 }
2355 static void writeString(FILE *f, char *s)
2356 {
2357         fwrite(s, 1, strlen(s), f);
2358 }
2359
2360
2361
2362 // Dump a gmon.out histogram file.
2363 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2364 {
2365         int i;
2366         FILE *f=fopen(filename, "w");
2367         if (f==NULL)
2368                 return;
2369         fwrite("gmon", 1, 4, f);
2370         writeLong(f, 0x00000001); // Version
2371         writeLong(f, 0); // padding
2372         writeLong(f, 0); // padding
2373         writeLong(f, 0); // padding
2374
2375         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2376
2377         // figure out bucket size
2378         u32 min=samples[0];
2379         u32 max=samples[0];
2380         for (i=0; i<sampleNum; i++)
2381         {
2382                 if (min>samples[i])
2383                 {
2384                         min=samples[i];
2385                 }
2386                 if (max<samples[i])
2387                 {
2388                         max=samples[i];
2389                 }
2390         }
2391
2392         int addressSpace=(max-min+1);
2393
2394         static int const maxBuckets=256*1024; // maximum buckets.
2395         int length=addressSpace;
2396         if (length > maxBuckets)
2397         {
2398                 length=maxBuckets;
2399         }
2400         int *buckets=malloc(sizeof(int)*length);
2401         if (buckets==NULL)
2402         {
2403                 fclose(f);
2404                 return;
2405         }
2406         memset(buckets, 0, sizeof(int)*length);
2407         for (i=0; i<sampleNum;i++)
2408         {
2409                 u32 address=samples[i];
2410                 long long a=address-min;
2411                 long long b=length-1;
2412                 long long c=addressSpace-1;
2413                 int index=(a*b)/c; // danger!!!! int32 overflows
2414                 buckets[index]++;
2415         }
2416
2417         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2418         writeLong(f, min);                                      // low_pc
2419         writeLong(f, max);              // high_pc
2420         writeLong(f, length);           // # of samples
2421         writeLong(f, 64000000);                         // 64MHz
2422         writeString(f, "seconds");
2423         for (i=0; i<(15-strlen("seconds")); i++)
2424         {
2425                 fwrite("", 1, 1, f);  // padding
2426         }
2427         writeString(f, "s");
2428
2429 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2430
2431         char *data=malloc(2*length);
2432         if (data!=NULL)
2433         {
2434                 for (i=0; i<length;i++)
2435                 {
2436                         int val;
2437                         val=buckets[i];
2438                         if (val>65535)
2439                         {
2440                                 val=65535;
2441                         }
2442                         data[i*2]=val&0xff;
2443                         data[i*2+1]=(val>>8)&0xff;
2444                 }
2445                 free(buckets);
2446                 fwrite(data, 1, length*2, f);
2447                 free(data);
2448         } else
2449         {
2450                 free(buckets);
2451         }
2452
2453         fclose(f);
2454 }
2455
2456 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2457 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2458 {
2459         target_t *target = get_current_target(cmd_ctx);
2460         struct timeval timeout, now;
2461
2462         gettimeofday(&timeout, NULL);
2463         if (argc!=2)
2464         {
2465                 return ERROR_COMMAND_SYNTAX_ERROR;
2466         }
2467         char *end;
2468         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2469         if (*end)
2470         {
2471                 return ERROR_OK;
2472         }
2473
2474         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2475
2476         static const int maxSample=10000;
2477         u32 *samples=malloc(sizeof(u32)*maxSample);
2478         if (samples==NULL)
2479                 return ERROR_OK;
2480
2481         int numSamples=0;
2482         int retval=ERROR_OK;
2483         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2484         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2485
2486         for (;;)
2487         {
2488                 target->type->poll(target);
2489                 if (target->state == TARGET_HALTED)
2490                 {
2491                         u32 t=*((u32 *)reg->value);
2492                         samples[numSamples++]=t;
2493                         retval = target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2494                         target->type->poll(target);
2495                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2496                 } else if (target->state == TARGET_RUNNING)
2497                 {
2498                         // We want to quickly sample the PC.
2499                         target->type->halt(target);
2500                 } else
2501                 {
2502                         command_print(cmd_ctx, "Target not halted or running");
2503                         retval=ERROR_OK;
2504                         break;
2505                 }
2506                 if (retval!=ERROR_OK)
2507                 {
2508                         break;
2509                 }
2510
2511                 gettimeofday(&now, NULL);
2512                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2513                 {
2514                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2515                         target->type->poll(target);
2516                         if (target->state == TARGET_HALTED)
2517                         {
2518                                 target->type->resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2519                         }
2520                         target->type->poll(target);
2521                         writeGmon(samples, numSamples, args[1]);
2522                         command_print(cmd_ctx, "Wrote %s", args[1]);
2523                         break;
2524                 }
2525         }
2526         free(samples);
2527
2528         return ERROR_OK;
2529 }
2530