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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 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54
  55 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58
  59 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  78
  79 /* targets
  80  */
  81 extern target_type_t arm7tdmi_target;
  82 extern target_type_t arm720t_target;
  83 extern target_type_t arm9tdmi_target;
  84 extern target_type_t arm920t_target;
  85 extern target_type_t arm966e_target;
  86 extern target_type_t arm926ejs_target;
  87 extern target_type_t feroceon_target;
  88 extern target_type_t xscale_target;
  89 extern target_type_t cortexm3_target;
  90 extern target_type_t arm11_target;
  91
  92 target_type_t *target_types[] =
  93 {
  94         &arm7tdmi_target,
  95         &arm9tdmi_target,
  96         &arm920t_target,
  97         &arm720t_target,
  98         &arm966e_target,
  99         &arm926ejs_target,
 100         &feroceon_target,
 101         &xscale_target,
 102         &cortexm3_target,
 103         &arm11_target,
 104         NULL,
 105 };
 106
 107 target_t *targets = NULL;
 108 target_event_callback_t *target_event_callbacks = NULL;
 109 target_timer_callback_t *target_timer_callbacks = NULL;
 110
 111 char *target_state_strings[] =
 112 {
 113         "unknown",
 114         "running",
 115         "halted",
 116         "reset",
 117         "debug_running",
 118 };
 119
 120 char *target_debug_reason_strings[] =
 121 {
 122         "debug request", "breakpoint", "watchpoint",
 123         "watchpoint and breakpoint", "single step",
 124         "target not halted", "undefined"
 125 };
 126
 127 char *target_endianess_strings[] =
 128 {
 129         "big endian",
 130         "little endian",
 131 };
 132
 133 static int target_continous_poll = 1;
 134
 135 /* read a u32 from a buffer in target memory endianness */
 136 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 137 {
 138         if (target->endianness == TARGET_LITTLE_ENDIAN)
 139                 return le_to_h_u32(buffer);
 140         else
 141                 return be_to_h_u32(buffer);
 142 }
 143
 144 /* read a u16 from a buffer in target memory endianness */
 145 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 146 {
 147         if (target->endianness == TARGET_LITTLE_ENDIAN)
 148                 return le_to_h_u16(buffer);
 149         else
 150                 return be_to_h_u16(buffer);
 151 }
 152
 153 /* write a u32 to a buffer in target memory endianness */
 154 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 155 {
 156         if (target->endianness == TARGET_LITTLE_ENDIAN)
 157                 h_u32_to_le(buffer, value);
 158         else
 159                 h_u32_to_be(buffer, value);
 160 }
 161
 162 /* write a u16 to a buffer in target memory endianness */
 163 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 164 {
 165         if (target->endianness == TARGET_LITTLE_ENDIAN)
 166                 h_u16_to_le(buffer, value);
 167         else
 168                 h_u16_to_be(buffer, value);
 169 }
 170
 171 /* returns a pointer to the n-th configured target */
 172 target_t* get_target_by_num(int num)
 173 {
 174         target_t *target = targets;
 175         int i = 0;
 176
 177         while (target)
 178         {
 179                 if (num == i)
 180                         return target;
 181                 target = target->next;
 182                 i++;
 183         }
 184
 185         return NULL;
 186 }
 187
 188 int get_num_by_target(target_t *query_target)
 189 {
 190         target_t *target = targets;
 191         int i = 0;
 192
 193         while (target)
 194         {
 195                 if (target == query_target)
 196                         return i;
 197                 target = target->next;
 198                 i++;
 199         }
 200
 201         return -1;
 202 }
 203
 204 target_t* get_current_target(command_context_t *cmd_ctx)
 205 {
 206         target_t *target = get_target_by_num(cmd_ctx->current_target);
 207
 208         if (target == NULL)
 209         {
 210                 LOG_ERROR("BUG: current_target out of bounds");
 211                 exit(-1);
 212         }
 213
 214         return target;
 215 }
 216
 217 /* Process target initialization, when target entered debug out of reset
 218  * the handler is unregistered at the end of this function, so it's only called once
 219  */
 220 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 221 {
 222         struct command_context_s *cmd_ctx = priv;
 223
 224         if (event == TARGET_EVENT_HALTED)
 225         {
 226                 target_unregister_event_callback(target_init_handler, priv);
 227                 target_invoke_script(cmd_ctx, target, "post_reset");
 228                 jtag_execute_queue();
 229         }
 230
 231         return ERROR_OK;
 232 }
 233
 234 int target_run_and_halt_handler(void *priv)
 235 {
 236         target_t *target = priv;
 237
 238         target_halt(target);
 239
 240         return ERROR_OK;
 241 }
 242
 243 int target_poll(struct target_s *target)
 244 {
 245         /* We can't poll until after examine */
 246         if (!target->type->examined)
 247         {
 248                 /* Fail silently lest we pollute the log */
 249                 return ERROR_FAIL;
 250         }
 251         return target->type->poll(target);
 252 }
 253
 254 int target_halt(struct target_s *target)
 255 {
 256         /* We can't poll until after examine */
 257         if (!target->type->examined)
 258         {
 259                 LOG_ERROR("Target not examined yet");
 260                 return ERROR_FAIL;
 261         }
 262         return target->type->halt(target);
 263 }
 264
 265 int target_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 266 {
 267         int retval;
 268         int timeout_ms = 5000;
 269
 270         enum target_state resume_state = debug_execution ? TARGET_DEBUG_RUNNING : TARGET_RUNNING;
 271
 272         /* We can't poll until after examine */
 273         if (!target->type->examined)
 274         {
 275                 LOG_ERROR("Target not examined yet");
 276                 return ERROR_FAIL;
 277         }
 278
 279         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 280                 return retval;
 281
 282         /* wait for target to exit halted mode */
 283         target_poll(target);
 284
 285         while (target->state != resume_state)
 286         {
 287                 usleep(10000);
 288                 target_poll(target);
 289                 if ((timeout_ms -= 10) <= 0)
 290                 {
 291                         LOG_ERROR("timeout waiting for target resume");
 292                         return ERROR_TARGET_TIMEOUT;
 293                 }
 294         }
 295
 296         return retval;
 297 }
 298
 299 int target_process_reset(struct command_context_s *cmd_ctx)
 300 {
 301         int retval = ERROR_OK;
 302         target_t *target;
 303         struct timeval timeout, now;
 304
 305         jtag->speed(jtag_speed);
 306
 307         target = targets;
 308         while (target)
 309         {
 310                 target_invoke_script(cmd_ctx, target, "pre_reset");
 311                 target = target->next;
 312         }
 313
 314         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 315                 return retval;
 316
 317         /* First time this is executed after launching OpenOCD, it will read out
 318          * the type of CPU, etc. and init Embedded ICE registers in host
 319          * memory.
 320          *
 321          * It will also set up ICE registers in the target.
 322          *
 323          * However, if we assert TRST later, we need to set up the registers again.
 324          *
 325          * For the "reset halt/init" case we must only set up the registers here.
 326          */
 327         if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 328                 return retval;
 329
 330         /* prepare reset_halt where necessary */
 331         target = targets;
 332         while (target)
 333         {
 334                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 335                 {
 336                         switch (target->reset_mode)
 337                         {
 338                                 case RESET_HALT:
 339                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 340                                         target->reset_mode = RESET_RUN_AND_HALT;
 341                                         break;
 342                                 case RESET_INIT:
 343                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 344                                         target->reset_mode = RESET_RUN_AND_INIT;
 345                                         break;
 346                                 default:
 347                                         break;
 348                         }
 349                 }
 350                 target = target->next;
 351         }
 352
 353         target = targets;
 354         while (target)
 355         {
 356                 /* we have no idea what state the target is in, so we
 357                  * have to drop working areas
 358                  */
 359                 target_free_all_working_areas_restore(target, 0);
 360                 target->type->assert_reset(target);
 361                 target = target->next;
 362         }
 363         if ((retval = jtag_execute_queue()) != ERROR_OK)
 364         {
 365                 LOG_WARNING("JTAG communication failed asserting reset.");
 366                 retval = ERROR_OK;
 367         }
 368
 369         /* request target halt if necessary, and schedule further action */
 370         target = targets;
 371         while (target)
 372         {
 373                 switch (target->reset_mode)
 374                 {
 375                         case RESET_RUN:
 376                                 /* nothing to do if target just wants to be run */
 377                                 break;
 378                         case RESET_RUN_AND_HALT:
 379                                 /* schedule halt */
 380                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 381                                 break;
 382                         case RESET_RUN_AND_INIT:
 383                                 /* schedule halt */
 384                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 385                                 target_register_event_callback(target_init_handler, cmd_ctx);
 386                                 break;
 387                         case RESET_HALT:
 388                                 target_halt(target);
 389                                 break;
 390                         case RESET_INIT:
 391                                 target_halt(target);
 392                                 target_register_event_callback(target_init_handler, cmd_ctx);
 393                                 break;
 394                         default:
 395                                 LOG_ERROR("BUG: unknown target->reset_mode");
 396                 }
 397                 target = target->next;
 398         }
 399
 400         if ((retval = jtag_execute_queue()) != ERROR_OK)
 401         {
 402                 LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
 403                 retval = ERROR_OK;
 404         }
 405
 406         target = targets;
 407         while (target)
 408         {
 409                 target->type->deassert_reset(target);
 410                 target = target->next;
 411         }
 412
 413         if ((retval = jtag_execute_queue()) != ERROR_OK)
 414         {
 415                 LOG_WARNING("JTAG communication failed while deasserting reset.");
 416                 retval = ERROR_OK;
 417         }
 418
 419         if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 420         {
 421                 /* If TRST was asserted we need to set up registers again */
 422                 if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 423                         return retval;
 424         }
 425
 426
 427         LOG_DEBUG("Waiting for halted stated as approperiate");
 428
 429         /* Wait for reset to complete, maximum 5 seconds. */
 430         gettimeofday(&timeout, NULL);
 431         timeval_add_time(&timeout, 5, 0);
 432         for(;;)
 433         {
 434                 gettimeofday(&now, NULL);
 435
 436                 target_call_timer_callbacks_now();
 437
 438                 target = targets;
 439                 while (target)
 440                 {
 441                         LOG_DEBUG("Polling target");
 442                         target_poll(target);
 443                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 444                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 445                                         (target->reset_mode == RESET_HALT) ||
 446                                         (target->reset_mode == RESET_INIT))
 447                         {
 448                                 if (target->state != TARGET_HALTED)
 449                                 {
 450                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 451                                         {
 452                                                 LOG_USER("Timed out waiting for halt after reset");
 453                                                 goto done;
 454                                         }
 455                                         /* this will send alive messages on e.g. GDB remote protocol. */
 456                                         usleep(500*1000);
 457                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 458                                         goto again;
 459                                 }
 460                         }
 461                         target = target->next;
 462                 }
 463                 /* All targets we're waiting for are halted */
 464                 break;
 465
 466                 again:;
 467         }
 468         done:
 469
 470
 471         /* We want any events to be processed before the prompt */
 472         target_call_timer_callbacks_now();
 473
 474         /* if we timed out we need to unregister these handlers */
 475         target = targets;
 476         while (target)
 477         {
 478                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 479                 target = target->next;
 480         }
 481         target_unregister_event_callback(target_init_handler, cmd_ctx);
 482
 483         jtag->speed(jtag_speed_post_reset);
 484
 485         return retval;
 486 }
 487
 488 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 489 {
 490         *physical = virtual;
 491         return ERROR_OK;
 492 }
 493
 494 static int default_mmu(struct target_s *target, int *enabled)
 495 {
 496         *enabled = 0;
 497         return ERROR_OK;
 498 }
 499
 500 static int default_examine(struct command_context_s *cmd_ctx, struct target_s *target)
 501 {
 502         target->type->examined = 1;
 503         return ERROR_OK;
 504 }
 505
 506
 507 /* Targets that correctly implement init+examine, i.e.
 508  * no communication with target during init:
 509  *
 510  * XScale
 511  */
 512 int target_examine(struct command_context_s *cmd_ctx)
 513 {
 514         int retval = ERROR_OK;
 515         target_t *target = targets;
 516         while (target)
 517         {
 518                 if ((retval = target->type->examine(cmd_ctx, target))!=ERROR_OK)
 519                         return retval;
 520                 target = target->next;
 521         }
 522         return retval;
 523 }
 524
 525 static int target_write_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 526 {
 527         if (!target->type->examined)
 528         {
 529                 LOG_ERROR("Target not examined yet");
 530                 return ERROR_FAIL;
 531         }
 532         return target->type->write_memory_imp(target, address, size, count, buffer);
 533 }
 534
 535 static int target_read_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 536 {
 537         if (!target->type->examined)
 538         {
 539                 LOG_ERROR("Target not examined yet");
 540                 return ERROR_FAIL;
 541         }
 542         return target->type->read_memory_imp(target, address, size, count, buffer);
 543 }
 544
 545 static int target_soft_reset_halt_imp(struct target_s *target)
 546 {
 547         if (!target->type->examined)
 548         {
 549                 LOG_ERROR("Target not examined yet");
 550                 return ERROR_FAIL;
 551         }
 552         return target->type->soft_reset_halt_imp(target);
 553 }
 554
 555 static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info)
 556 {
 557         if (!target->type->examined)
 558         {
 559                 LOG_ERROR("Target not examined yet");
 560                 return ERROR_FAIL;
 561         }
 562         return target->type->run_algorithm_imp(target, num_mem_params, mem_params, num_reg_params, reg_param, entry_point, exit_point, timeout_ms, arch_info);
 563 }
 564
 565 int target_init(struct command_context_s *cmd_ctx)
 566 {
 567         target_t *target = targets;
 568
 569         while (target)
 570         {
 571                 target->type->examined = 0;
 572                 if (target->type->examine == NULL)
 573                 {
 574                         target->type->examine = default_examine;
 575                 }
 576
 577                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 578                 {
 579                         LOG_ERROR("target '%s' init failed", target->type->name);
 580                         exit(-1);
 581                 }
 582
 583                 /* Set up default functions if none are provided by target */
 584                 if (target->type->virt2phys == NULL)
 585                 {
 586                         target->type->virt2phys = default_virt2phys;
 587                 }
 588                 target->type->virt2phys = default_virt2phys;
 589                 /* a non-invasive way(in terms of patches) to add some code that
 590                  * runs before the type->write/read_memory implementation
 591                  */
 592                 target->type->write_memory_imp = target->type->write_memory;
 593                 target->type->write_memory = target_write_memory_imp;
 594                 target->type->read_memory_imp = target->type->read_memory;
 595                 target->type->read_memory = target_read_memory_imp;
 596                 target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
 597                 target->type->soft_reset_halt = target_soft_reset_halt_imp;
 598                 target->type->run_algorithm_imp = target->type->run_algorithm;
 599                 target->type->run_algorithm = target_run_algorithm_imp;
 600
 601
 602                 if (target->type->mmu == NULL)
 603                 {
 604                         target->type->mmu = default_mmu;
 605                 }
 606                 target = target->next;
 607         }
 608
 609         if (targets)
 610         {
 611                 target_register_user_commands(cmd_ctx);
 612                 target_register_timer_callback(handle_target, 100, 1, NULL);
 613         }
 614
 615         return ERROR_OK;
 616 }
 617
 618 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 619 {
 620         target_event_callback_t **callbacks_p = &target_event_callbacks;
 621
 622         if (callback == NULL)
 623         {
 624                 return ERROR_INVALID_ARGUMENTS;
 625         }
 626
 627         if (*callbacks_p)
 628         {
 629                 while ((*callbacks_p)->next)
 630                         callbacks_p = &((*callbacks_p)->next);
 631                 callbacks_p = &((*callbacks_p)->next);
 632         }
 633
 634         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 635         (*callbacks_p)->callback = callback;
 636         (*callbacks_p)->priv = priv;
 637         (*callbacks_p)->next = NULL;
 638
 639         return ERROR_OK;
 640 }
 641
 642 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 643 {
 644         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 645         struct timeval now;
 646
 647         if (callback == NULL)
 648         {
 649                 return ERROR_INVALID_ARGUMENTS;
 650         }
 651
 652         if (*callbacks_p)
 653         {
 654                 while ((*callbacks_p)->next)
 655                         callbacks_p = &((*callbacks_p)->next);
 656                 callbacks_p = &((*callbacks_p)->next);
 657         }
 658
 659         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 660         (*callbacks_p)->callback = callback;
 661         (*callbacks_p)->periodic = periodic;
 662         (*callbacks_p)->time_ms = time_ms;
 663
 664         gettimeofday(&now, NULL);
 665         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 666         time_ms -= (time_ms % 1000);
 667         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 668         if ((*callbacks_p)->when.tv_usec > 1000000)
 669         {
 670                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 671                 (*callbacks_p)->when.tv_sec += 1;
 672         }
 673
 674         (*callbacks_p)->priv = priv;
 675         (*callbacks_p)->next = NULL;
 676
 677         return ERROR_OK;
 678 }
 679
 680 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 681 {
 682         target_event_callback_t **p = &target_event_callbacks;
 683         target_event_callback_t *c = target_event_callbacks;
 684
 685         if (callback == NULL)
 686         {
 687                 return ERROR_INVALID_ARGUMENTS;
 688         }
 689
 690         while (c)
 691         {
 692                 target_event_callback_t *next = c->next;
 693                 if ((c->callback == callback) && (c->priv == priv))
 694                 {
 695                         *p = next;
 696                         free(c);
 697                         return ERROR_OK;
 698                 }
 699                 else
 700                         p = &(c->next);
 701                 c = next;
 702         }
 703
 704         return ERROR_OK;
 705 }
 706
 707 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 708 {
 709         target_timer_callback_t **p = &target_timer_callbacks;
 710         target_timer_callback_t *c = target_timer_callbacks;
 711
 712         if (callback == NULL)
 713         {
 714                 return ERROR_INVALID_ARGUMENTS;
 715         }
 716
 717         while (c)
 718         {
 719                 target_timer_callback_t *next = c->next;
 720                 if ((c->callback == callback) && (c->priv == priv))
 721                 {
 722                         *p = next;
 723                         free(c);
 724                         return ERROR_OK;
 725                 }
 726                 else
 727                         p = &(c->next);
 728                 c = next;
 729         }
 730
 731         return ERROR_OK;
 732 }
 733
 734 int target_call_event_callbacks(target_t *target, enum target_event event)
 735 {
 736         target_event_callback_t *callback = target_event_callbacks;
 737         target_event_callback_t *next_callback;
 738
 739         LOG_DEBUG("target event %i", event);
 740
 741         while (callback)
 742         {
 743                 next_callback = callback->next;
 744                 callback->callback(target, event, callback->priv);
 745                 callback = next_callback;
 746         }
 747
 748         return ERROR_OK;
 749 }
 750
 751 static int target_call_timer_callbacks_check_time(int checktime)
 752 {
 753         target_timer_callback_t *callback = target_timer_callbacks;
 754         target_timer_callback_t *next_callback;
 755         struct timeval now;
 756
 757         gettimeofday(&now, NULL);
 758
 759         while (callback)
 760         {
 761                 next_callback = callback->next;
 762
 763                 if ((!checktime&&callback->periodic)||
 764                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 765                                                 || (now.tv_sec > callback->when.tv_sec)))
 766                 {
 767                         if(callback->callback != NULL)
 768                         {
 769                                 callback->callback(callback->priv);
 770                                 if (callback->periodic)
 771                                 {
 772                                         int time_ms = callback->time_ms;
 773                                         callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 774                                         time_ms -= (time_ms % 1000);
 775                                         callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 776                                         if (callback->when.tv_usec > 1000000)
 777                                         {
 778                                                 callback->when.tv_usec = callback->when.tv_usec - 1000000;
 779                                                 callback->when.tv_sec += 1;
 780                                         }
 781                                 }
 782                                 else
 783                                         target_unregister_timer_callback(callback->callback, callback->priv);
 784                         }
 785                 }
 786
 787                 callback = next_callback;
 788         }
 789
 790         return ERROR_OK;
 791 }
 792
 793 int target_call_timer_callbacks()
 794 {
 795         return target_call_timer_callbacks_check_time(1);
 796 }
 797
 798 /* invoke periodic callbacks immediately */
 799 int target_call_timer_callbacks_now()
 800 {
 801         return target_call_timer_callbacks(0);
 802 }
 803
 804 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 805 {
 806         working_area_t *c = target->working_areas;
 807         working_area_t *new_wa = NULL;
 808
 809         /* Reevaluate working area address based on MMU state*/
 810         if (target->working_areas == NULL)
 811         {
 812                 int retval;
 813                 int enabled;
 814                 retval = target->type->mmu(target, &enabled);
 815                 if (retval != ERROR_OK)
 816                 {
 817                         return retval;
 818                 }
 819                 if (enabled)
 820                 {
 821                         target->working_area = target->working_area_virt;
 822                 }
 823                 else
 824                 {
 825                         target->working_area = target->working_area_phys;
 826                 }
 827         }
 828
 829         /* only allocate multiples of 4 byte */
 830         if (size % 4)
 831         {
 832                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 833                 size = CEIL(size, 4);
 834         }
 835
 836         /* see if there's already a matching working area */
 837         while (c)
 838         {
 839                 if ((c->free) && (c->size == size))
 840                 {
 841                         new_wa = c;
 842                         break;
 843                 }
 844                 c = c->next;
 845         }
 846
 847         /* if not, allocate a new one */
 848         if (!new_wa)
 849         {
 850                 working_area_t **p = &target->working_areas;
 851                 u32 first_free = target->working_area;
 852                 u32 free_size = target->working_area_size;
 853
 854                 LOG_DEBUG("allocating new working area");
 855
 856                 c = target->working_areas;
 857                 while (c)
 858                 {
 859                         first_free += c->size;
 860                         free_size -= c->size;
 861                         p = &c->next;
 862                         c = c->next;
 863                 }
 864
 865                 if (free_size < size)
 866                 {
 867                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 868                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 869                 }
 870
 871                 new_wa = malloc(sizeof(working_area_t));
 872                 new_wa->next = NULL;
 873                 new_wa->size = size;
 874                 new_wa->address = first_free;
 875
 876                 if (target->backup_working_area)
 877                 {
 878                         new_wa->backup = malloc(new_wa->size);
 879                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 880                 }
 881                 else
 882                 {
 883                         new_wa->backup = NULL;
 884                 }
 885
 886                 /* put new entry in list */
 887                 *p = new_wa;
 888         }
 889
 890         /* mark as used, and return the new (reused) area */
 891         new_wa->free = 0;
 892         *area = new_wa;
 893
 894         /* user pointer */
 895         new_wa->user = area;
 896
 897         return ERROR_OK;
 898 }
 899
 900 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 901 {
 902         if (area->free)
 903                 return ERROR_OK;
 904
 905         if (restore&&target->backup_working_area)
 906                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 907
 908         area->free = 1;
 909
 910         /* mark user pointer invalid */
 911         *area->user = NULL;
 912         area->user = NULL;
 913
 914         return ERROR_OK;
 915 }
 916
 917 int target_free_working_area(struct target_s *target, working_area_t *area)
 918 {
 919         return target_free_working_area_restore(target, area, 1);
 920 }
 921
 922 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 923 {
 924         working_area_t *c = target->working_areas;
 925
 926         while (c)
 927         {
 928                 working_area_t *next = c->next;
 929                 target_free_working_area_restore(target, c, restore);
 930
 931                 if (c->backup)
 932                         free(c->backup);
 933
 934                 free(c);
 935
 936                 c = next;
 937         }
 938
 939         target->working_areas = NULL;
 940
 941         return ERROR_OK;
 942 }
 943
 944 int target_free_all_working_areas(struct target_s *target)
 945 {
 946         return target_free_all_working_areas_restore(target, 1);
 947 }
 948
 949 int target_register_commands(struct command_context_s *cmd_ctx)
 950 {
 951         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 952         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 953         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG,
 954         "target_script <target#> <event=reset/pre_reset/post_halt/pre_resume/gdb_program_config> <script_file>");
 955         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 956         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 957         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 958         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 959
 960         return ERROR_OK;
 961 }
 962
 963 int target_arch_state(struct target_s *target)
 964 {
 965         int retval;
 966         if (target==NULL)
 967         {
 968                 LOG_USER("No target has been configured");
 969                 return ERROR_OK;
 970         }
 971
 972         LOG_USER("target state: %s", target_state_strings[target->state]);
 973
 974         if (target->state!=TARGET_HALTED)
 975                 return ERROR_OK;
 976
 977         retval=target->type->arch_state(target);
 978         return retval;
 979 }
 980
 981 /* Single aligned words are guaranteed to use 16 or 32 bit access
 982  * mode respectively, otherwise data is handled as quickly as
 983  * possible
 984  */
 985 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 986 {
 987         int retval;
 988         if (!target->type->examined)
 989         {
 990                 LOG_ERROR("Target not examined yet");
 991                 return ERROR_FAIL;
 992         }
 993
 994         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 995
 996         if (((address % 2) == 0) && (size == 2))
 997         {
 998                 return target->type->write_memory(target, address, 2, 1, buffer);
 999         }
1000
1001         /* handle unaligned head bytes */
1002         if (address % 4)
1003         {
1004                 int unaligned = 4 - (address % 4);
1005
1006                 if (unaligned > size)
1007                         unaligned = size;
1008
1009                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1010                         return retval;
1011
1012                 buffer += unaligned;
1013                 address += unaligned;
1014                 size -= unaligned;
1015         }
1016
1017         /* handle aligned words */
1018         if (size >= 4)
1019         {
1020                 int aligned = size - (size % 4);
1021
1022                 /* use bulk writes above a certain limit. This may have to be changed */
1023                 if (aligned > 128)
1024                 {
1025                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
1026                                 return retval;
1027                 }
1028                 else
1029                 {
1030                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1031                                 return retval;
1032                 }
1033
1034                 buffer += aligned;
1035                 address += aligned;
1036                 size -= aligned;
1037         }
1038
1039         /* handle tail writes of less than 4 bytes */
1040         if (size > 0)
1041         {
1042                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
1043                         return retval;
1044         }
1045
1046         return ERROR_OK;
1047 }
1048
1049
1050 /* Single aligned words are guaranteed to use 16 or 32 bit access
1051  * mode respectively, otherwise data is handled as quickly as
1052  * possible
1053  */
1054 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
1055 {
1056         int retval;
1057         if (!target->type->examined)
1058         {
1059                 LOG_ERROR("Target not examined yet");
1060                 return ERROR_FAIL;
1061         }
1062
1063         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
1064
1065         if (((address % 2) == 0) && (size == 2))
1066         {
1067                 return target->type->read_memory(target, address, 2, 1, buffer);
1068         }
1069
1070         /* handle unaligned head bytes */
1071         if (address % 4)
1072         {
1073                 int unaligned = 4 - (address % 4);
1074
1075                 if (unaligned > size)
1076                         unaligned = size;
1077
1078                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1079                         return retval;
1080
1081                 buffer += unaligned;
1082                 address += unaligned;
1083                 size -= unaligned;
1084         }
1085
1086         /* handle aligned words */
1087         if (size >= 4)
1088         {
1089                 int aligned = size - (size % 4);
1090
1091                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1092                         return retval;
1093
1094                 buffer += aligned;
1095                 address += aligned;
1096                 size -= aligned;
1097         }
1098
1099         /* handle tail writes of less than 4 bytes */
1100         if (size > 0)
1101         {
1102                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1103                         return retval;
1104         }
1105
1106         return ERROR_OK;
1107 }
1108
1109 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
1110 {
1111         u8 *buffer;
1112         int retval;
1113         int i;
1114         u32 checksum = 0;
1115         if (!target->type->examined)
1116         {
1117                 LOG_ERROR("Target not examined yet");
1118                 return ERROR_FAIL;
1119         }
1120
1121         if ((retval = target->type->checksum_memory(target, address,
1122                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1123         {
1124                 buffer = malloc(size);
1125                 if (buffer == NULL)
1126                 {
1127                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
1128                         return ERROR_INVALID_ARGUMENTS;
1129                 }
1130                 retval = target_read_buffer(target, address, size, buffer);
1131                 if (retval != ERROR_OK)
1132                 {
1133                         free(buffer);
1134                         return retval;
1135                 }
1136
1137                 /* convert to target endianess */
1138                 for (i = 0; i < (size/sizeof(u32)); i++)
1139                 {
1140                         u32 target_data;
1141                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
1142                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
1143                 }
1144
1145                 retval = image_calculate_checksum( buffer, size, &checksum );
1146                 free(buffer);
1147         }
1148
1149         *crc = checksum;
1150
1151         return retval;
1152 }
1153
1154 int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank)
1155 {
1156         int retval;
1157         if (!target->type->examined)
1158         {
1159                 LOG_ERROR("Target not examined yet");
1160                 return ERROR_FAIL;
1161         }
1162
1163         if (target->type->blank_check_memory == 0)
1164                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1165
1166         retval = target->type->blank_check_memory(target, address, size, blank);
1167
1168         return retval;
1169 }
1170
1171 int target_read_u32(struct target_s *target, u32 address, u32 *value)
1172 {
1173         u8 value_buf[4];
1174         if (!target->type->examined)
1175         {
1176                 LOG_ERROR("Target not examined yet");
1177                 return ERROR_FAIL;
1178         }
1179
1180         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
1181
1182         if (retval == ERROR_OK)
1183         {
1184                 *value = target_buffer_get_u32(target, value_buf);
1185                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1186         }
1187         else
1188         {
1189                 *value = 0x0;
1190                 LOG_DEBUG("address: 0x%8.8x failed", address);
1191         }
1192
1193         return retval;
1194 }
1195
1196 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1197 {
1198         u8 value_buf[2];
1199         if (!target->type->examined)
1200         {
1201                 LOG_ERROR("Target not examined yet");
1202                 return ERROR_FAIL;
1203         }
1204
1205         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1206
1207         if (retval == ERROR_OK)
1208         {
1209                 *value = target_buffer_get_u16(target, value_buf);
1210                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1211         }
1212         else
1213         {
1214                 *value = 0x0;
1215                 LOG_DEBUG("address: 0x%8.8x failed", address);
1216         }
1217
1218         return retval;
1219 }
1220
1221 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1222 {
1223         int retval = target->type->read_memory(target, address, 1, 1, value);
1224         if (!target->type->examined)
1225         {
1226                 LOG_ERROR("Target not examined yet");
1227                 return ERROR_FAIL;
1228         }
1229
1230         if (retval == ERROR_OK)
1231         {
1232                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1233         }
1234         else
1235         {
1236                 *value = 0x0;
1237                 LOG_DEBUG("address: 0x%8.8x failed", address);
1238         }
1239
1240         return retval;
1241 }
1242
1243 int target_write_u32(struct target_s *target, u32 address, u32 value)
1244 {
1245         int retval;
1246         u8 value_buf[4];
1247         if (!target->type->examined)
1248         {
1249                 LOG_ERROR("Target not examined yet");
1250                 return ERROR_FAIL;
1251         }
1252
1253         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1254
1255         target_buffer_set_u32(target, value_buf, value);
1256         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1257         {
1258                 LOG_DEBUG("failed: %i", retval);
1259         }
1260
1261         return retval;
1262 }
1263
1264 int target_write_u16(struct target_s *target, u32 address, u16 value)
1265 {
1266         int retval;
1267         u8 value_buf[2];
1268         if (!target->type->examined)
1269         {
1270                 LOG_ERROR("Target not examined yet");
1271                 return ERROR_FAIL;
1272         }
1273
1274         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1275
1276         target_buffer_set_u16(target, value_buf, value);
1277         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1278         {
1279                 LOG_DEBUG("failed: %i", retval);
1280         }
1281
1282         return retval;
1283 }
1284
1285 int target_write_u8(struct target_s *target, u32 address, u8 value)
1286 {
1287         int retval;
1288         if (!target->type->examined)
1289         {
1290                 LOG_ERROR("Target not examined yet");
1291                 return ERROR_FAIL;
1292         }
1293
1294         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1295
1296         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1297         {
1298                 LOG_DEBUG("failed: %i", retval);
1299         }
1300
1301         return retval;
1302 }
1303
1304 int target_register_user_commands(struct command_context_s *cmd_ctx)
1305 {
1306         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1307         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1308         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1309         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1310         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1311         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1312         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1313         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1314
1315         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1316         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1317         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1318
1319         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1320         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1321         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1322
1323         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1324         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1325         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1326         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1327
1328         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1329         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1330         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1331         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1332         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1333
1334         target_request_register_commands(cmd_ctx);
1335         trace_register_commands(cmd_ctx);
1336
1337         return ERROR_OK;
1338 }
1339
1340 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1341 {
1342         target_t *target = targets;
1343         int count = 0;
1344
1345         if (argc == 1)
1346         {
1347                 int num = strtoul(args[0], NULL, 0);
1348
1349                 while (target)
1350                 {
1351                         count++;
1352                         target = target->next;
1353                 }
1354
1355                 if (num < count)
1356                         cmd_ctx->current_target = num;
1357                 else
1358                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1359
1360                 return ERROR_OK;
1361         }
1362
1363         while (target)
1364         {
1365                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1366                 target = target->next;
1367         }
1368
1369         return ERROR_OK;
1370 }
1371
1372 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1373 {
1374         int i;
1375         int found = 0;
1376
1377         if (argc < 3)
1378         {
1379                 return ERROR_COMMAND_SYNTAX_ERROR;
1380         }
1381
1382         /* search for the specified target */
1383         if (args[0] && (args[0][0] != 0))
1384         {
1385                 for (i = 0; target_types[i]; i++)
1386                 {
1387                         if (strcmp(args[0], target_types[i]->name) == 0)
1388                         {
1389                                 target_t **last_target_p = &targets;
1390
1391                                 /* register target specific commands */
1392                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1393                                 {
1394                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1395                                         exit(-1);
1396                                 }
1397
1398                                 if (*last_target_p)
1399                                 {
1400                                         while ((*last_target_p)->next)
1401                                                 last_target_p = &((*last_target_p)->next);
1402                                         last_target_p = &((*last_target_p)->next);
1403                                 }
1404
1405                                 *last_target_p = malloc(sizeof(target_t));
1406
1407                                 /* allocate memory for each unique target type */
1408                                 (*last_target_p)->type = (target_type_t*)malloc(sizeof(target_type_t));
1409                                 *((*last_target_p)->type) = *target_types[i];
1410
1411                                 if (strcmp(args[1], "big") == 0)
1412                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1413                                 else if (strcmp(args[1], "little") == 0)
1414                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1415                                 else
1416                                 {
1417                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1418                                         return ERROR_COMMAND_SYNTAX_ERROR;
1419                                 }
1420
1421                                 /* what to do on a target reset */
1422                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1423                                 if (strcmp(args[2], "reset_halt") == 0)
1424                                         (*last_target_p)->reset_mode = RESET_HALT;
1425                                 else if (strcmp(args[2], "reset_run") == 0)
1426                                         (*last_target_p)->reset_mode = RESET_RUN;
1427                                 else if (strcmp(args[2], "reset_init") == 0)
1428                                         (*last_target_p)->reset_mode = RESET_INIT;
1429                                 else if (strcmp(args[2], "run_and_halt") == 0)
1430                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1431                                 else if (strcmp(args[2], "run_and_init") == 0)
1432                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1433                                 else
1434                                 {
1435                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1436                                         args--;
1437                                         argc++;
1438                                 }
1439                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1440
1441                                 (*last_target_p)->working_area = 0x0;
1442                                 (*last_target_p)->working_area_size = 0x0;
1443                                 (*last_target_p)->working_areas = NULL;
1444                                 (*last_target_p)->backup_working_area = 0;
1445
1446                                 (*last_target_p)->state = TARGET_UNKNOWN;
1447                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1448                                 (*last_target_p)->reg_cache = NULL;
1449                                 (*last_target_p)->breakpoints = NULL;
1450                                 (*last_target_p)->watchpoints = NULL;
1451                                 (*last_target_p)->next = NULL;
1452                                 (*last_target_p)->arch_info = NULL;
1453
1454                                 /* initialize trace information */
1455                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1456                                 (*last_target_p)->trace_info->num_trace_points = 0;
1457                                 (*last_target_p)->trace_info->trace_points_size = 0;
1458                                 (*last_target_p)->trace_info->trace_points = NULL;
1459                                 (*last_target_p)->trace_info->trace_history_size = 0;
1460                                 (*last_target_p)->trace_info->trace_history = NULL;
1461                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1462                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1463
1464                                 (*last_target_p)->dbgmsg = NULL;
1465                                 (*last_target_p)->dbg_msg_enabled = 0;
1466
1467                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1468
1469                                 found = 1;
1470                                 break;
1471                         }
1472                 }
1473         }
1474
1475         /* no matching target found */
1476         if (!found)
1477         {
1478                 LOG_ERROR("target '%s' not found", args[0]);
1479                 return ERROR_COMMAND_SYNTAX_ERROR;
1480         }
1481
1482         return ERROR_OK;
1483 }
1484
1485 int target_invoke_script(struct command_context_s *cmd_ctx, target_t *target, char *name)
1486 {
1487         return command_run_linef(cmd_ctx, " if {[catch {info body target_%s_%d} t]==0} {target_%s_%d}",
1488         name, get_num_by_target(target),
1489         name, get_num_by_target(target));
1490 }
1491
1492 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1493 {
1494         target_t *target = NULL;
1495
1496         if (argc < 3)
1497         {
1498                 LOG_ERROR("incomplete target_script command");
1499                 return ERROR_COMMAND_SYNTAX_ERROR;
1500         }
1501
1502         target = get_target_by_num(strtoul(args[0], NULL, 0));
1503
1504         if (!target)
1505         {
1506                 return ERROR_COMMAND_SYNTAX_ERROR;
1507         }
1508
1509         const char *event=args[1];
1510         if (strcmp("reset", event)==0)
1511         {
1512                 /* synonymous */
1513                 event="post_reset";
1514         }
1515
1516         /* Define a tcl procedure which we'll invoke upon some event */
1517         command_run_linef(cmd_ctx,
1518         "proc target_%s_%d {} {"
1519         "openocd {script %s} ; return \"\""
1520         "}",
1521         event,
1522         get_num_by_target(target),
1523         args[2]);
1524
1525         return ERROR_OK;
1526 }
1527
1528 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1529 {
1530         target_t *target = NULL;
1531
1532         if (argc < 2)
1533         {
1534                 return ERROR_COMMAND_SYNTAX_ERROR;
1535         }
1536
1537         target = get_target_by_num(strtoul(args[0], NULL, 0));
1538         if (!target)
1539         {
1540                 return ERROR_COMMAND_SYNTAX_ERROR;
1541         }
1542
1543         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1544
1545         return ERROR_OK;
1546 }
1547
1548 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1549 {
1550         target_t *target = NULL;
1551
1552         if ((argc < 4) || (argc > 5))
1553         {
1554                 return ERROR_COMMAND_SYNTAX_ERROR;
1555         }
1556
1557         target = get_target_by_num(strtoul(args[0], NULL, 0));
1558         if (!target)
1559         {
1560                 return ERROR_COMMAND_SYNTAX_ERROR;
1561         }
1562         target_free_all_working_areas(target);
1563
1564         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1565         if (argc == 5)
1566         {
1567                 target->working_area_virt = strtoul(args[4], NULL, 0);
1568         }
1569         target->working_area_size = strtoul(args[2], NULL, 0);
1570
1571         if (strcmp(args[3], "backup") == 0)
1572         {
1573                 target->backup_working_area = 1;
1574         }
1575         else if (strcmp(args[3], "nobackup") == 0)
1576         {
1577                 target->backup_working_area = 0;
1578         }
1579         else
1580         {
1581                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1582                 return ERROR_COMMAND_SYNTAX_ERROR;
1583         }
1584
1585         return ERROR_OK;
1586 }
1587
1588
1589 /* process target state changes */
1590 int handle_target(void *priv)
1591 {
1592         target_t *target = targets;
1593
1594         while (target)
1595         {
1596                 if (target_continous_poll)
1597                 {
1598                         /* polling may fail silently until the target has been examined */
1599                         target_poll(target);
1600                 }
1601
1602                 target = target->next;
1603         }
1604
1605         return ERROR_OK;
1606 }
1607
1608 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1609 {
1610         target_t *target;
1611         reg_t *reg = NULL;
1612         int count = 0;
1613         char *value;
1614
1615         LOG_DEBUG("-");
1616
1617         target = get_current_target(cmd_ctx);
1618
1619         /* list all available registers for the current target */
1620         if (argc == 0)
1621         {
1622                 reg_cache_t *cache = target->reg_cache;
1623
1624                 count = 0;
1625                 while(cache)
1626                 {
1627                         int i;
1628                         for (i = 0; i < cache->num_regs; i++)
1629                         {
1630                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1631                                 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);
1632                                 free(value);
1633                         }
1634                         cache = cache->next;
1635                 }
1636
1637                 return ERROR_OK;
1638         }
1639
1640         /* access a single register by its ordinal number */
1641         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1642         {
1643                 int num = strtoul(args[0], NULL, 0);
1644                 reg_cache_t *cache = target->reg_cache;
1645
1646                 count = 0;
1647                 while(cache)
1648                 {
1649                         int i;
1650                         for (i = 0; i < cache->num_regs; i++)
1651                         {
1652                                 if (count++ == num)
1653                                 {
1654                                         reg = &cache->reg_list[i];
1655                                         break;
1656                                 }
1657                         }
1658                         if (reg)
1659                                 break;
1660                         cache = cache->next;
1661                 }
1662
1663                 if (!reg)
1664                 {
1665                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1666                         return ERROR_OK;
1667                 }
1668         } else /* access a single register by its name */
1669         {
1670                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1671
1672                 if (!reg)
1673                 {
1674                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1675                         return ERROR_OK;
1676                 }
1677         }
1678
1679         /* display a register */
1680         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1681         {
1682                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1683                         reg->valid = 0;
1684
1685                 if (reg->valid == 0)
1686                 {
1687                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1688                         if (arch_type == NULL)
1689                         {
1690                                 LOG_ERROR("BUG: encountered unregistered arch type");
1691                                 return ERROR_OK;
1692                         }
1693                         arch_type->get(reg);
1694                 }
1695                 value = buf_to_str(reg->value, reg->size, 16);
1696                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1697                 free(value);
1698                 return ERROR_OK;
1699         }
1700
1701         /* set register value */
1702         if (argc == 2)
1703         {
1704                 u8 *buf = malloc(CEIL(reg->size, 8));
1705                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1706
1707                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1708                 if (arch_type == NULL)
1709                 {
1710                         LOG_ERROR("BUG: encountered unregistered arch type");
1711                         return ERROR_OK;
1712                 }
1713
1714                 arch_type->set(reg, buf);
1715
1716                 value = buf_to_str(reg->value, reg->size, 16);
1717                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1718                 free(value);
1719
1720                 free(buf);
1721
1722                 return ERROR_OK;
1723         }
1724
1725         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1726
1727         return ERROR_OK;
1728 }
1729
1730 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1731
1732 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1733 {
1734         target_t *target = get_current_target(cmd_ctx);
1735
1736         if (argc == 0)
1737         {
1738                 target_poll(target);
1739                 target_arch_state(target);
1740         }
1741         else
1742         {
1743                 if (strcmp(args[0], "on") == 0)
1744                 {
1745                         target_continous_poll = 1;
1746                 }
1747                 else if (strcmp(args[0], "off") == 0)
1748                 {
1749                         target_continous_poll = 0;
1750                 }
1751                 else
1752                 {
1753                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1754                 }
1755         }
1756
1757
1758         return ERROR_OK;
1759 }
1760
1761 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1762 {
1763         int ms = 5000;
1764
1765         if (argc > 0)
1766         {
1767                 char *end;
1768
1769                 ms = strtoul(args[0], &end, 0) * 1000;
1770                 if (*end)
1771                 {
1772                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1773                         return ERROR_OK;
1774                 }
1775         }
1776
1777         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1778 }
1779
1780 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1781 {
1782         int retval;
1783         struct timeval timeout, now;
1784         int once=1;
1785         gettimeofday(&timeout, NULL);
1786         timeval_add_time(&timeout, 0, ms * 1000);
1787
1788         target_t *target = get_current_target(cmd_ctx);
1789         for (;;)
1790         {
1791                 if ((retval=target_poll(target))!=ERROR_OK)
1792                         return retval;
1793                 target_call_timer_callbacks_now();
1794                 if (target->state == state)
1795                 {
1796                         break;
1797                 }
1798                 if (once)
1799                 {
1800                         once=0;
1801                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1802                 }
1803
1804                 gettimeofday(&now, NULL);
1805                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1806                 {
1807                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1808                         break;
1809                 }
1810         }
1811
1812         return ERROR_OK;
1813 }
1814
1815 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1816 {
1817         int retval;
1818         target_t *target = get_current_target(cmd_ctx);
1819
1820         LOG_DEBUG("-");
1821
1822         if ((retval = target_halt(target)) != ERROR_OK)
1823         {
1824                 return retval;
1825         }
1826
1827         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1828 }
1829
1830 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1831 {
1832         target_t *target = get_current_target(cmd_ctx);
1833
1834         LOG_USER("requesting target halt and executing a soft reset");
1835
1836         target->type->soft_reset_halt(target);
1837
1838         return ERROR_OK;
1839 }
1840
1841 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1842 {
1843         target_t *target = get_current_target(cmd_ctx);
1844         enum target_reset_mode reset_mode = target->reset_mode;
1845         enum target_reset_mode save = target->reset_mode;
1846
1847         LOG_DEBUG("-");
1848
1849         if (argc >= 1)
1850         {
1851                 if (strcmp("run", args[0]) == 0)
1852                         reset_mode = RESET_RUN;
1853                 else if (strcmp("halt", args[0]) == 0)
1854                         reset_mode = RESET_HALT;
1855                 else if (strcmp("init", args[0]) == 0)
1856                         reset_mode = RESET_INIT;
1857                 else if (strcmp("run_and_halt", args[0]) == 0)
1858                 {
1859                         reset_mode = RESET_RUN_AND_HALT;
1860                         if (argc >= 2)
1861                         {
1862                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1863                         }
1864                 }
1865                 else if (strcmp("run_and_init", args[0]) == 0)
1866                 {
1867                         reset_mode = RESET_RUN_AND_INIT;
1868                         if (argc >= 2)
1869                         {
1870                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1871                         }
1872                 }
1873                 else
1874                 {
1875                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1876                         return ERROR_OK;
1877                 }
1878         }
1879
1880         /* temporarily modify mode of current reset target */
1881         target->reset_mode = reset_mode;
1882
1883         /* reset *all* targets */
1884         target_process_reset(cmd_ctx);
1885
1886         /* Restore default reset mode for this target */
1887     target->reset_mode = save;
1888
1889         return ERROR_OK;
1890 }
1891
1892 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1893 {
1894         int retval;
1895         target_t *target = get_current_target(cmd_ctx);
1896
1897         target_invoke_script(cmd_ctx, target, "pre_resume");
1898
1899         if (argc == 0)
1900                 retval = target_resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1901         else if (argc == 1)
1902                 retval = target_resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1903         else
1904         {
1905                 return ERROR_COMMAND_SYNTAX_ERROR;
1906         }
1907
1908         return retval;
1909 }
1910
1911 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1912 {
1913         target_t *target = get_current_target(cmd_ctx);
1914
1915         LOG_DEBUG("-");
1916
1917         if (argc == 0)
1918                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1919
1920         if (argc == 1)
1921                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1922
1923         return ERROR_OK;
1924 }
1925
1926 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1927 {
1928         const int line_bytecnt = 32;
1929         int count = 1;
1930         int size = 4;
1931         u32 address = 0;
1932         int line_modulo;
1933         int i;
1934
1935         char output[128];
1936         int output_len;
1937
1938         int retval;
1939
1940         u8 *buffer;
1941         target_t *target = get_current_target(cmd_ctx);
1942
1943         if (argc < 1)
1944                 return ERROR_OK;
1945
1946         if (argc == 2)
1947                 count = strtoul(args[1], NULL, 0);
1948
1949         address = strtoul(args[0], NULL, 0);
1950
1951
1952         switch (cmd[2])
1953         {
1954                 case 'w':
1955                         size = 4; line_modulo = line_bytecnt / 4;
1956                         break;
1957                 case 'h':
1958                         size = 2; line_modulo = line_bytecnt / 2;
1959                         break;
1960                 case 'b':
1961                         size = 1; line_modulo = line_bytecnt / 1;
1962                         break;
1963                 default:
1964                         return ERROR_OK;
1965         }
1966
1967         buffer = calloc(count, size);
1968         retval  = target->type->read_memory(target, address, size, count, buffer);
1969         if (retval == ERROR_OK)
1970         {
1971                 output_len = 0;
1972
1973                 for (i = 0; i < count; i++)
1974                 {
1975                         if (i%line_modulo == 0)
1976                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1977
1978                         switch (size)
1979                         {
1980                                 case 4:
1981                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1982                                         break;
1983                                 case 2:
1984                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1985                                         break;
1986                                 case 1:
1987                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1988                                         break;
1989                         }
1990
1991                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1992                         {
1993                                 command_print(cmd_ctx, output);
1994                                 output_len = 0;
1995                         }
1996                 }
1997         }
1998
1999         free(buffer);
2000
2001         return retval;
2002 }
2003
2004 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2005 {
2006         u32 address = 0;
2007         u32 value = 0;
2008         int count = 1;
2009         int i;
2010         int wordsize;
2011         target_t *target = get_current_target(cmd_ctx);
2012         u8 value_buf[4];
2013
2014          if ((argc < 2) || (argc > 3))
2015                 return ERROR_COMMAND_SYNTAX_ERROR;
2016
2017         address = strtoul(args[0], NULL, 0);
2018         value = strtoul(args[1], NULL, 0);
2019         if (argc == 3)
2020                 count = strtoul(args[2], NULL, 0);
2021
2022         switch (cmd[2])
2023         {
2024                 case 'w':
2025                         wordsize = 4;
2026                         target_buffer_set_u32(target, value_buf, value);
2027                         break;
2028                 case 'h':
2029                         wordsize = 2;
2030                         target_buffer_set_u16(target, value_buf, value);
2031                         break;
2032                 case 'b':
2033                         wordsize = 1;
2034                         value_buf[0] = value;
2035                         break;
2036                 default:
2037                         return ERROR_COMMAND_SYNTAX_ERROR;
2038         }
2039         for (i=0; i<count; i++)
2040         {
2041                 int retval;
2042                 switch (wordsize)
2043                 {
2044                         case 4:
2045                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
2046                                 break;
2047                         case 2:
2048                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
2049                                 break;
2050                         case 1:
2051                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
2052                         break;
2053                         default:
2054                         return ERROR_OK;
2055                 }
2056                 if (retval!=ERROR_OK)
2057                 {
2058                         return retval;
2059                 }
2060         }
2061
2062         return ERROR_OK;
2063
2064 }
2065
2066 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2067 {
2068         u8 *buffer;
2069         u32 buf_cnt;
2070         u32 image_size;
2071         int i;
2072         int retval;
2073
2074         image_t image;
2075
2076         duration_t duration;
2077         char *duration_text;
2078
2079         target_t *target = get_current_target(cmd_ctx);
2080
2081         if (argc < 1)
2082         {
2083                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
2084                 return ERROR_OK;
2085         }
2086
2087         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
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         }
2097
2098         image.start_address_set = 0;
2099
2100         duration_start_measure(&duration);
2101
2102         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
2103         {
2104                 return ERROR_OK;
2105         }
2106
2107         image_size = 0x0;
2108         retval = ERROR_OK;
2109         for (i = 0; i < image.num_sections; i++)
2110         {
2111                 buffer = malloc(image.sections[i].size);
2112                 if (buffer == NULL)
2113                 {
2114                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2115                         break;
2116                 }
2117
2118                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2119                 {
2120                         free(buffer);
2121                         break;
2122                 }
2123                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
2124                 {
2125                         free(buffer);
2126                         break;
2127                 }
2128                 image_size += buf_cnt;
2129                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
2130
2131                 free(buffer);
2132         }
2133
2134         duration_stop_measure(&duration, &duration_text);
2135         if (retval==ERROR_OK)
2136         {
2137                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
2138         }
2139         free(duration_text);
2140
2141         image_close(&image);
2142
2143         return retval;
2144
2145 }
2146
2147 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2148 {
2149         fileio_t fileio;
2150
2151         u32 address;
2152         u32 size;
2153         u8 buffer[560];
2154         int retval=ERROR_OK;
2155
2156         duration_t duration;
2157         char *duration_text;
2158
2159         target_t *target = get_current_target(cmd_ctx);
2160
2161         if (argc != 3)
2162         {
2163                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2164                 return ERROR_OK;
2165         }
2166
2167         address = strtoul(args[1], NULL, 0);
2168         size = strtoul(args[2], NULL, 0);
2169
2170         if ((address & 3) || (size & 3))
2171         {
2172                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
2173                 return ERROR_OK;
2174         }
2175
2176         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2177         {
2178                 return ERROR_OK;
2179         }
2180
2181         duration_start_measure(&duration);
2182
2183         while (size > 0)
2184         {
2185                 u32 size_written;
2186                 u32 this_run_size = (size > 560) ? 560 : size;
2187
2188                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2189                 if (retval != ERROR_OK)
2190                 {
2191                         break;
2192                 }
2193
2194                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2195                 if (retval != ERROR_OK)
2196                 {
2197                         break;
2198                 }
2199
2200                 size -= this_run_size;
2201                 address += this_run_size;
2202         }
2203
2204         fileio_close(&fileio);
2205
2206         duration_stop_measure(&duration, &duration_text);
2207         if (retval==ERROR_OK)
2208         {
2209                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2210         }
2211         free(duration_text);
2212
2213         return ERROR_OK;
2214 }
2215
2216 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2217 {
2218         u8 *buffer;
2219         u32 buf_cnt;
2220         u32 image_size;
2221         int i;
2222         int retval;
2223         u32 checksum = 0;
2224         u32 mem_checksum = 0;
2225
2226         image_t image;
2227
2228         duration_t duration;
2229         char *duration_text;
2230
2231         target_t *target = get_current_target(cmd_ctx);
2232
2233         if (argc < 1)
2234         {
2235                 return ERROR_COMMAND_SYNTAX_ERROR;
2236         }
2237
2238         if (!target)
2239         {
2240                 LOG_ERROR("no target selected");
2241                 return ERROR_FAIL;
2242         }
2243
2244         duration_start_measure(&duration);
2245
2246         if (argc >= 2)
2247         {
2248                 image.base_address_set = 1;
2249                 image.base_address = strtoul(args[1], NULL, 0);
2250         }
2251         else
2252         {
2253                 image.base_address_set = 0;
2254                 image.base_address = 0x0;
2255         }
2256
2257         image.start_address_set = 0;
2258
2259         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2260         {
2261                 return retval;
2262         }
2263
2264         image_size = 0x0;
2265         retval=ERROR_OK;
2266         for (i = 0; i < image.num_sections; i++)
2267         {
2268                 buffer = malloc(image.sections[i].size);
2269                 if (buffer == NULL)
2270                 {
2271                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2272                         break;
2273                 }
2274                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2275                 {
2276                         free(buffer);
2277                         break;
2278                 }
2279
2280                 /* calculate checksum of image */
2281                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2282
2283                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2284                 if( retval != ERROR_OK )
2285                 {
2286                         free(buffer);
2287                         break;
2288                 }
2289
2290                 if( checksum != mem_checksum )
2291                 {
2292                         /* failed crc checksum, fall back to a binary compare */
2293                         u8 *data;
2294
2295                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2296
2297                         data = (u8*)malloc(buf_cnt);
2298
2299                         /* Can we use 32bit word accesses? */
2300                         int size = 1;
2301                         int count = buf_cnt;
2302                         if ((count % 4) == 0)
2303                         {
2304                                 size *= 4;
2305                                 count /= 4;
2306                         }
2307                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2308                         if (retval == ERROR_OK)
2309                         {
2310                                 int t;
2311                                 for (t = 0; t < buf_cnt; t++)
2312                                 {
2313                                         if (data[t] != buffer[t])
2314                                         {
2315                                                 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]);
2316                                                 free(data);
2317                                                 free(buffer);
2318                                                 retval=ERROR_FAIL;
2319                                                 goto done;
2320                                         }
2321                                 }
2322                         }
2323
2324                         free(data);
2325                 }
2326
2327                 free(buffer);
2328                 image_size += buf_cnt;
2329         }
2330 done:
2331         duration_stop_measure(&duration, &duration_text);
2332         if (retval==ERROR_OK)
2333         {
2334                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2335         }
2336         free(duration_text);
2337
2338         image_close(&image);
2339
2340         return retval;
2341 }
2342
2343 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2344 {
2345         int retval;
2346         target_t *target = get_current_target(cmd_ctx);
2347
2348         if (argc == 0)
2349         {
2350                 breakpoint_t *breakpoint = target->breakpoints;
2351
2352                 while (breakpoint)
2353                 {
2354                         if (breakpoint->type == BKPT_SOFT)
2355                         {
2356                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2357                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2358                                 free(buf);
2359                         }
2360                         else
2361                         {
2362                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2363                         }
2364                         breakpoint = breakpoint->next;
2365                 }
2366         }
2367         else if (argc >= 2)
2368         {
2369                 int hw = BKPT_SOFT;
2370                 u32 length = 0;
2371
2372                 length = strtoul(args[1], NULL, 0);
2373
2374                 if (argc >= 3)
2375                         if (strcmp(args[2], "hw") == 0)
2376                                 hw = BKPT_HARD;
2377
2378                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2379                 {
2380                         LOG_ERROR("Failure setting breakpoints");
2381                 }
2382                 else
2383                 {
2384                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2385                 }
2386         }
2387         else
2388         {
2389                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2390         }
2391
2392         return ERROR_OK;
2393 }
2394
2395 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2396 {
2397         target_t *target = get_current_target(cmd_ctx);
2398
2399         if (argc > 0)
2400                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2401
2402         return ERROR_OK;
2403 }
2404
2405 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2406 {
2407         target_t *target = get_current_target(cmd_ctx);
2408         int retval;
2409
2410         if (argc == 0)
2411         {
2412                 watchpoint_t *watchpoint = target->watchpoints;
2413
2414                 while (watchpoint)
2415                 {
2416                         command_print(cmd_ctx, "address: 0x%8.8x, len: 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);
2417                         watchpoint = watchpoint->next;
2418                 }
2419         }
2420         else if (argc >= 2)
2421         {
2422                 enum watchpoint_rw type = WPT_ACCESS;
2423                 u32 data_value = 0x0;
2424                 u32 data_mask = 0xffffffff;
2425
2426                 if (argc >= 3)
2427                 {
2428                         switch(args[2][0])
2429                         {
2430                                 case 'r':
2431                                         type = WPT_READ;
2432                                         break;
2433                                 case 'w':
2434                                         type = WPT_WRITE;
2435                                         break;
2436                                 case 'a':
2437                                         type = WPT_ACCESS;
2438                                         break;
2439                                 default:
2440                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2441                                         return ERROR_OK;
2442                         }
2443                 }
2444                 if (argc >= 4)
2445                 {
2446                         data_value = strtoul(args[3], NULL, 0);
2447                 }
2448                 if (argc >= 5)
2449                 {
2450                         data_mask = strtoul(args[4], NULL, 0);
2451                 }
2452
2453                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2454                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2455                 {
2456                         LOG_ERROR("Failure setting breakpoints");
2457                 }
2458         }
2459         else
2460         {
2461                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2462         }
2463
2464         return ERROR_OK;
2465 }
2466
2467 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2468 {
2469         target_t *target = get_current_target(cmd_ctx);
2470
2471         if (argc > 0)
2472                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2473
2474         return ERROR_OK;
2475 }
2476
2477 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2478 {
2479         int retval;
2480         target_t *target = get_current_target(cmd_ctx);
2481         u32 va;
2482         u32 pa;
2483
2484         if (argc != 1)
2485         {
2486                 return ERROR_COMMAND_SYNTAX_ERROR;
2487         }
2488         va = strtoul(args[0], NULL, 0);
2489
2490         retval = target->type->virt2phys(target, va, &pa);
2491         if (retval == ERROR_OK)
2492         {
2493                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2494         }
2495         else
2496         {
2497                 /* lower levels will have logged a detailed error which is
2498                  * forwarded to telnet/GDB session.
2499                  */
2500         }
2501         return retval;
2502 }
2503 static void writeLong(FILE *f, int l)
2504 {
2505         int i;
2506         for (i=0; i<4; i++)
2507         {
2508                 char c=(l>>(i*8))&0xff;
2509                 fwrite(&c, 1, 1, f);
2510         }
2511
2512 }
2513 static void writeString(FILE *f, char *s)
2514 {
2515         fwrite(s, 1, strlen(s), f);
2516 }
2517
2518
2519
2520 // Dump a gmon.out histogram file.
2521 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2522 {
2523         int i;
2524         FILE *f=fopen(filename, "w");
2525         if (f==NULL)
2526                 return;
2527         fwrite("gmon", 1, 4, f);
2528         writeLong(f, 0x00000001); // Version
2529         writeLong(f, 0); // padding
2530         writeLong(f, 0); // padding
2531         writeLong(f, 0); // padding
2532
2533         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2534
2535         // figure out bucket size
2536         u32 min=samples[0];
2537         u32 max=samples[0];
2538         for (i=0; i<sampleNum; i++)
2539         {
2540                 if (min>samples[i])
2541                 {
2542                         min=samples[i];
2543                 }
2544                 if (max<samples[i])
2545                 {
2546                         max=samples[i];
2547                 }
2548         }
2549
2550         int addressSpace=(max-min+1);
2551
2552         static int const maxBuckets=256*1024; // maximum buckets.
2553         int length=addressSpace;
2554         if (length > maxBuckets)
2555         {
2556                 length=maxBuckets;
2557         }
2558         int *buckets=malloc(sizeof(int)*length);
2559         if (buckets==NULL)
2560         {
2561                 fclose(f);
2562                 return;
2563         }
2564         memset(buckets, 0, sizeof(int)*length);
2565         for (i=0; i<sampleNum;i++)
2566         {
2567                 u32 address=samples[i];
2568                 long long a=address-min;
2569                 long long b=length-1;
2570                 long long c=addressSpace-1;
2571                 int index=(a*b)/c; // danger!!!! int32 overflows
2572                 buckets[index]++;
2573         }
2574
2575         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2576         writeLong(f, min);                                      // low_pc
2577         writeLong(f, max);              // high_pc
2578         writeLong(f, length);           // # of samples
2579         writeLong(f, 64000000);                         // 64MHz
2580         writeString(f, "seconds");
2581         for (i=0; i<(15-strlen("seconds")); i++)
2582         {
2583                 fwrite("", 1, 1, f);  // padding
2584         }
2585         writeString(f, "s");
2586
2587 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2588
2589         char *data=malloc(2*length);
2590         if (data!=NULL)
2591         {
2592                 for (i=0; i<length;i++)
2593                 {
2594                         int val;
2595                         val=buckets[i];
2596                         if (val>65535)
2597                         {
2598                                 val=65535;
2599                         }
2600                         data[i*2]=val&0xff;
2601                         data[i*2+1]=(val>>8)&0xff;
2602                 }
2603                 free(buckets);
2604                 fwrite(data, 1, length*2, f);
2605                 free(data);
2606         } else
2607         {
2608                 free(buckets);
2609         }
2610
2611         fclose(f);
2612 }
2613
2614 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2615 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2616 {
2617         target_t *target = get_current_target(cmd_ctx);
2618         struct timeval timeout, now;
2619
2620         gettimeofday(&timeout, NULL);
2621         if (argc!=2)
2622         {
2623                 return ERROR_COMMAND_SYNTAX_ERROR;
2624         }
2625         char *end;
2626         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2627         if (*end)
2628         {
2629                 return ERROR_OK;
2630         }
2631
2632         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2633
2634         static const int maxSample=10000;
2635         u32 *samples=malloc(sizeof(u32)*maxSample);
2636         if (samples==NULL)
2637                 return ERROR_OK;
2638
2639         int numSamples=0;
2640         int retval=ERROR_OK;
2641         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2642         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2643
2644         for (;;)
2645         {
2646                 target_poll(target);
2647                 if (target->state == TARGET_HALTED)
2648                 {
2649                         u32 t=*((u32 *)reg->value);
2650                         samples[numSamples++]=t;
2651                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2652                         target_poll(target);
2653                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2654                 } else if (target->state == TARGET_RUNNING)
2655                 {
2656                         // We want to quickly sample the PC.
2657                         target_halt(target);
2658                 } else
2659                 {
2660                         command_print(cmd_ctx, "Target not halted or running");
2661                         retval=ERROR_OK;
2662                         break;
2663                 }
2664                 if (retval!=ERROR_OK)
2665                 {
2666                         break;
2667                 }
2668
2669                 gettimeofday(&now, NULL);
2670                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2671                 {
2672                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2673                         target_poll(target);
2674                         if (target->state == TARGET_HALTED)
2675                         {
2676                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2677                         }
2678                         target_poll(target);
2679                         writeGmon(samples, numSamples, args[1]);
2680                         command_print(cmd_ctx, "Wrote %s", args[1]);
2681                         break;
2682                 }
2683         }
2684         free(samples);
2685
2686         return ERROR_OK;
2687 }