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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_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57
  58 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  78 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  79
  80
  81 /* targets */
  82 extern target_type_t arm7tdmi_target;
  83 extern target_type_t arm720t_target;
  84 extern target_type_t arm9tdmi_target;
  85 extern target_type_t arm920t_target;
  86 extern target_type_t arm966e_target;
  87 extern target_type_t arm926ejs_target;
  88 extern target_type_t feroceon_target;
  89 extern target_type_t xscale_target;
  90 extern target_type_t cortexm3_target;
  91 extern target_type_t arm11_target;
  92
  93 target_type_t *target_types[] =
  94 {
  95         &arm7tdmi_target,
  96         &arm9tdmi_target,
  97         &arm920t_target,
  98         &arm720t_target,
  99         &arm966e_target,
 100         &arm926ejs_target,
 101         &feroceon_target,
 102         &xscale_target,
 103         &cortexm3_target,
 104         &arm11_target,
 105         NULL,
 106 };
 107
 108 target_t *targets = NULL;
 109 target_event_callback_t *target_event_callbacks = NULL;
 110 target_timer_callback_t *target_timer_callbacks = NULL;
 111
 112 char *target_state_strings[] =
 113 {
 114         "unknown",
 115         "running",
 116         "halted",
 117         "reset",
 118         "debug_running",
 119 };
 120
 121 char *target_debug_reason_strings[] =
 122 {
 123         "debug request", "breakpoint", "watchpoint",
 124         "watchpoint and breakpoint", "single step",
 125         "target not halted", "undefined"
 126 };
 127
 128 char *target_endianess_strings[] =
 129 {
 130         "big endian",
 131         "little endian",
 132 };
 133
 134 static int target_continous_poll = 1;
 135
 136 /* read a u32 from a buffer in target memory endianness */
 137 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 138 {
 139         if (target->endianness == TARGET_LITTLE_ENDIAN)
 140                 return le_to_h_u32(buffer);
 141         else
 142                 return be_to_h_u32(buffer);
 143 }
 144
 145 /* read a u16 from a buffer in target memory endianness */
 146 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 147 {
 148         if (target->endianness == TARGET_LITTLE_ENDIAN)
 149                 return le_to_h_u16(buffer);
 150         else
 151                 return be_to_h_u16(buffer);
 152 }
 153
 154 /* write a u32 to a buffer in target memory endianness */
 155 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 156 {
 157         if (target->endianness == TARGET_LITTLE_ENDIAN)
 158                 h_u32_to_le(buffer, value);
 159         else
 160                 h_u32_to_be(buffer, value);
 161 }
 162
 163 /* write a u16 to a buffer in target memory endianness */
 164 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 165 {
 166         if (target->endianness == TARGET_LITTLE_ENDIAN)
 167                 h_u16_to_le(buffer, value);
 168         else
 169                 h_u16_to_be(buffer, value);
 170 }
 171
 172 /* returns a pointer to the n-th configured target */
 173 target_t* get_target_by_num(int num)
 174 {
 175         target_t *target = targets;
 176         int i = 0;
 177
 178         while (target)
 179         {
 180                 if (num == i)
 181                         return target;
 182                 target = target->next;
 183                 i++;
 184         }
 185
 186         return NULL;
 187 }
 188
 189 int get_num_by_target(target_t *query_target)
 190 {
 191         target_t *target = targets;
 192         int i = 0;
 193
 194         while (target)
 195         {
 196                 if (target == query_target)
 197                         return i;
 198                 target = target->next;
 199                 i++;
 200         }
 201
 202         return -1;
 203 }
 204
 205 target_t* get_current_target(command_context_t *cmd_ctx)
 206 {
 207         target_t *target = get_target_by_num(cmd_ctx->current_target);
 208
 209         if (target == NULL)
 210         {
 211                 LOG_ERROR("BUG: current_target out of bounds");
 212                 exit(-1);
 213         }
 214
 215         return target;
 216 }
 217
 218 /* Process target initialization, when target entered debug out of reset
 219  * the handler is unregistered at the end of this function, so it's only called once
 220  */
 221 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 222 {
 223         struct command_context_s *cmd_ctx = priv;
 224
 225         if (event == TARGET_EVENT_HALTED)
 226         {
 227                 target_unregister_event_callback(target_init_handler, priv);
 228                 target_invoke_script(cmd_ctx, target, "post_reset");
 229                 jtag_execute_queue();
 230         }
 231
 232         return ERROR_OK;
 233 }
 234
 235 int target_run_and_halt_handler(void *priv)
 236 {
 237         target_t *target = priv;
 238
 239         target_halt(target);
 240
 241         return ERROR_OK;
 242 }
 243
 244 int target_poll(struct target_s *target)
 245 {
 246         /* We can't poll until after examine */
 247         if (!target->type->examined)
 248         {
 249                 /* Fail silently lest we pollute the log */
 250                 return ERROR_FAIL;
 251         }
 252         return target->type->poll(target);
 253 }
 254
 255 int target_halt(struct target_s *target)
 256 {
 257         /* We can't poll until after examine */
 258         if (!target->type->examined)
 259         {
 260                 LOG_ERROR("Target not examined yet");
 261                 return ERROR_FAIL;
 262         }
 263         return target->type->halt(target);
 264 }
 265
 266 int target_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 267 {
 268         int retval;
 269
 270         /* We can't poll until after examine */
 271         if (!target->type->examined)
 272         {
 273                 LOG_ERROR("Target not examined yet");
 274                 return ERROR_FAIL;
 275         }
 276
 277         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 278                 return retval;
 279
 280         return retval;
 281 }
 282
 283 int target_process_reset(struct command_context_s *cmd_ctx)
 284 {
 285         int retval = ERROR_OK;
 286         target_t *target;
 287         struct timeval timeout, now;
 288
 289         jtag->speed(jtag_speed);
 290
 291         target = targets;
 292         while (target)
 293         {
 294                 target_invoke_script(cmd_ctx, target, "pre_reset");
 295                 target = target->next;
 296         }
 297
 298         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 299                 return retval;
 300
 301         /* First time this is executed after launching OpenOCD, it will read out
 302          * the type of CPU, etc. and init Embedded ICE registers in host
 303          * memory.
 304          *
 305          * It will also set up ICE registers in the target.
 306          *
 307          * However, if we assert TRST later, we need to set up the registers again.
 308          *
 309          * For the "reset halt/init" case we must only set up the registers here.
 310          */
 311         if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 312                 return retval;
 313
 314         /* prepare reset_halt where necessary */
 315         target = targets;
 316         while (target)
 317         {
 318                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 319                 {
 320                         switch (target->reset_mode)
 321                         {
 322                                 case RESET_HALT:
 323                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 324                                         target->reset_mode = RESET_RUN_AND_HALT;
 325                                         break;
 326                                 case RESET_INIT:
 327                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 328                                         target->reset_mode = RESET_RUN_AND_INIT;
 329                                         break;
 330                                 default:
 331                                         break;
 332                         }
 333                 }
 334                 target = target->next;
 335         }
 336
 337         target = targets;
 338         while (target)
 339         {
 340                 /* we have no idea what state the target is in, so we
 341                  * have to drop working areas
 342                  */
 343                 target_free_all_working_areas_restore(target, 0);
 344                 target->type->assert_reset(target);
 345                 target = target->next;
 346         }
 347         if ((retval = jtag_execute_queue()) != ERROR_OK)
 348         {
 349                 LOG_WARNING("JTAG communication failed asserting reset.");
 350                 retval = ERROR_OK;
 351         }
 352
 353         /* request target halt if necessary, and schedule further action */
 354         target = targets;
 355         while (target)
 356         {
 357                 switch (target->reset_mode)
 358                 {
 359                         case RESET_RUN:
 360                                 /* nothing to do if target just wants to be run */
 361                                 break;
 362                         case RESET_RUN_AND_HALT:
 363                                 /* schedule halt */
 364                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 365                                 break;
 366                         case RESET_RUN_AND_INIT:
 367                                 /* schedule halt */
 368                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 369                                 target_register_event_callback(target_init_handler, cmd_ctx);
 370                                 break;
 371                         case RESET_HALT:
 372                                 target_halt(target);
 373                                 break;
 374                         case RESET_INIT:
 375                                 target_halt(target);
 376                                 target_register_event_callback(target_init_handler, cmd_ctx);
 377                                 break;
 378                         default:
 379                                 LOG_ERROR("BUG: unknown target->reset_mode");
 380                 }
 381                 target = target->next;
 382         }
 383
 384         if ((retval = jtag_execute_queue()) != ERROR_OK)
 385         {
 386                 LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
 387                 retval = ERROR_OK;
 388         }
 389
 390         target = targets;
 391         while (target)
 392         {
 393                 target->type->deassert_reset(target);
 394                 target = target->next;
 395         }
 396
 397         if ((retval = jtag_execute_queue()) != ERROR_OK)
 398         {
 399                 LOG_WARNING("JTAG communication failed while deasserting reset.");
 400                 retval = ERROR_OK;
 401         }
 402
 403         if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 404         {
 405                 /* If TRST was asserted we need to set up registers again */
 406                 if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
 407                         return retval;
 408         }
 409
 410
 411         LOG_DEBUG("Waiting for halted stated as approperiate");
 412
 413         /* Wait for reset to complete, maximum 5 seconds. */
 414         gettimeofday(&timeout, NULL);
 415         timeval_add_time(&timeout, 5, 0);
 416         for(;;)
 417         {
 418                 gettimeofday(&now, NULL);
 419
 420                 target_call_timer_callbacks_now();
 421
 422                 target = targets;
 423                 while (target)
 424                 {
 425                         LOG_DEBUG("Polling target");
 426                         target_poll(target);
 427                         if ((target->reset_mode == RESET_RUN_AND_INIT) ||
 428                                         (target->reset_mode == RESET_RUN_AND_HALT) ||
 429                                         (target->reset_mode == RESET_HALT) ||
 430                                         (target->reset_mode == RESET_INIT))
 431                         {
 432                                 if (target->state != TARGET_HALTED)
 433                                 {
 434                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 435                                         {
 436                                                 LOG_USER("Timed out waiting for halt after reset");
 437                                                 goto done;
 438                                         }
 439                                         /* this will send alive messages on e.g. GDB remote protocol. */
 440                                         usleep(500*1000);
 441                                         LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 442                                         goto again;
 443                                 }
 444                         }
 445                         target = target->next;
 446                 }
 447                 /* All targets we're waiting for are halted */
 448                 break;
 449
 450                 again:;
 451         }
 452         done:
 453
 454
 455         /* We want any events to be processed before the prompt */
 456         target_call_timer_callbacks_now();
 457
 458         /* if we timed out we need to unregister these handlers */
 459         target = targets;
 460         while (target)
 461         {
 462                 target_unregister_timer_callback(target_run_and_halt_handler, target);
 463                 target = target->next;
 464         }
 465         target_unregister_event_callback(target_init_handler, cmd_ctx);
 466
 467         jtag->speed(jtag_speed_post_reset);
 468
 469         return retval;
 470 }
 471
 472 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 473 {
 474         *physical = virtual;
 475         return ERROR_OK;
 476 }
 477
 478 static int default_mmu(struct target_s *target, int *enabled)
 479 {
 480         *enabled = 0;
 481         return ERROR_OK;
 482 }
 483
 484 static int default_examine(struct command_context_s *cmd_ctx, struct target_s *target)
 485 {
 486         target->type->examined = 1;
 487         return ERROR_OK;
 488 }
 489
 490
 491 /* Targets that correctly implement init+examine, i.e.
 492  * no communication with target during init:
 493  *
 494  * XScale
 495  */
 496 int target_examine(struct command_context_s *cmd_ctx)
 497 {
 498         int retval = ERROR_OK;
 499         target_t *target = targets;
 500         while (target)
 501         {
 502                 if ((retval = target->type->examine(cmd_ctx, target))!=ERROR_OK)
 503                         return retval;
 504                 target = target->next;
 505         }
 506         return retval;
 507 }
 508
 509 static int target_write_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 510 {
 511         if (!target->type->examined)
 512         {
 513                 LOG_ERROR("Target not examined yet");
 514                 return ERROR_FAIL;
 515         }
 516         return target->type->write_memory_imp(target, address, size, count, buffer);
 517 }
 518
 519 static int target_read_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 520 {
 521         if (!target->type->examined)
 522         {
 523                 LOG_ERROR("Target not examined yet");
 524                 return ERROR_FAIL;
 525         }
 526         return target->type->read_memory_imp(target, address, size, count, buffer);
 527 }
 528
 529 static int target_soft_reset_halt_imp(struct target_s *target)
 530 {
 531         if (!target->type->examined)
 532         {
 533                 LOG_ERROR("Target not examined yet");
 534                 return ERROR_FAIL;
 535         }
 536         return target->type->soft_reset_halt_imp(target);
 537 }
 538
 539 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)
 540 {
 541         if (!target->type->examined)
 542         {
 543                 LOG_ERROR("Target not examined yet");
 544                 return ERROR_FAIL;
 545         }
 546         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);
 547 }
 548
 549 int target_init(struct command_context_s *cmd_ctx)
 550 {
 551         target_t *target = targets;
 552
 553         while (target)
 554         {
 555                 target->type->examined = 0;
 556                 if (target->type->examine == NULL)
 557                 {
 558                         target->type->examine = default_examine;
 559                 }
 560
 561                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 562                 {
 563                         LOG_ERROR("target '%s' init failed", target->type->name);
 564                         exit(-1);
 565                 }
 566
 567                 /* Set up default functions if none are provided by target */
 568                 if (target->type->virt2phys == NULL)
 569                 {
 570                         target->type->virt2phys = default_virt2phys;
 571                 }
 572                 target->type->virt2phys = default_virt2phys;
 573                 /* a non-invasive way(in terms of patches) to add some code that
 574                  * runs before the type->write/read_memory implementation
 575                  */
 576                 target->type->write_memory_imp = target->type->write_memory;
 577                 target->type->write_memory = target_write_memory_imp;
 578                 target->type->read_memory_imp = target->type->read_memory;
 579                 target->type->read_memory = target_read_memory_imp;
 580                 target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
 581                 target->type->soft_reset_halt = target_soft_reset_halt_imp;
 582                 target->type->run_algorithm_imp = target->type->run_algorithm;
 583                 target->type->run_algorithm = target_run_algorithm_imp;
 584
 585
 586                 if (target->type->mmu == NULL)
 587                 {
 588                         target->type->mmu = default_mmu;
 589                 }
 590                 target = target->next;
 591         }
 592
 593         if (targets)
 594         {
 595                 target_register_user_commands(cmd_ctx);
 596                 target_register_timer_callback(handle_target, 100, 1, NULL);
 597         }
 598
 599         return ERROR_OK;
 600 }
 601
 602 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 603 {
 604         target_event_callback_t **callbacks_p = &target_event_callbacks;
 605
 606         if (callback == NULL)
 607         {
 608                 return ERROR_INVALID_ARGUMENTS;
 609         }
 610
 611         if (*callbacks_p)
 612         {
 613                 while ((*callbacks_p)->next)
 614                         callbacks_p = &((*callbacks_p)->next);
 615                 callbacks_p = &((*callbacks_p)->next);
 616         }
 617
 618         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 619         (*callbacks_p)->callback = callback;
 620         (*callbacks_p)->priv = priv;
 621         (*callbacks_p)->next = NULL;
 622
 623         return ERROR_OK;
 624 }
 625
 626 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 627 {
 628         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 629         struct timeval now;
 630
 631         if (callback == NULL)
 632         {
 633                 return ERROR_INVALID_ARGUMENTS;
 634         }
 635
 636         if (*callbacks_p)
 637         {
 638                 while ((*callbacks_p)->next)
 639                         callbacks_p = &((*callbacks_p)->next);
 640                 callbacks_p = &((*callbacks_p)->next);
 641         }
 642
 643         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 644         (*callbacks_p)->callback = callback;
 645         (*callbacks_p)->periodic = periodic;
 646         (*callbacks_p)->time_ms = time_ms;
 647
 648         gettimeofday(&now, NULL);
 649         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 650         time_ms -= (time_ms % 1000);
 651         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 652         if ((*callbacks_p)->when.tv_usec > 1000000)
 653         {
 654                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 655                 (*callbacks_p)->when.tv_sec += 1;
 656         }
 657
 658         (*callbacks_p)->priv = priv;
 659         (*callbacks_p)->next = NULL;
 660
 661         return ERROR_OK;
 662 }
 663
 664 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 665 {
 666         target_event_callback_t **p = &target_event_callbacks;
 667         target_event_callback_t *c = target_event_callbacks;
 668
 669         if (callback == NULL)
 670         {
 671                 return ERROR_INVALID_ARGUMENTS;
 672         }
 673
 674         while (c)
 675         {
 676                 target_event_callback_t *next = c->next;
 677                 if ((c->callback == callback) && (c->priv == priv))
 678                 {
 679                         *p = next;
 680                         free(c);
 681                         return ERROR_OK;
 682                 }
 683                 else
 684                         p = &(c->next);
 685                 c = next;
 686         }
 687
 688         return ERROR_OK;
 689 }
 690
 691 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 692 {
 693         target_timer_callback_t **p = &target_timer_callbacks;
 694         target_timer_callback_t *c = target_timer_callbacks;
 695
 696         if (callback == NULL)
 697         {
 698                 return ERROR_INVALID_ARGUMENTS;
 699         }
 700
 701         while (c)
 702         {
 703                 target_timer_callback_t *next = c->next;
 704                 if ((c->callback == callback) && (c->priv == priv))
 705                 {
 706                         *p = next;
 707                         free(c);
 708                         return ERROR_OK;
 709                 }
 710                 else
 711                         p = &(c->next);
 712                 c = next;
 713         }
 714
 715         return ERROR_OK;
 716 }
 717
 718 int target_call_event_callbacks(target_t *target, enum target_event event)
 719 {
 720         target_event_callback_t *callback = target_event_callbacks;
 721         target_event_callback_t *next_callback;
 722
 723         LOG_DEBUG("target event %i", event);
 724
 725         while (callback)
 726         {
 727                 next_callback = callback->next;
 728                 callback->callback(target, event, callback->priv);
 729                 callback = next_callback;
 730         }
 731
 732         return ERROR_OK;
 733 }
 734
 735 static int target_call_timer_callbacks_check_time(int checktime)
 736 {
 737         target_timer_callback_t *callback = target_timer_callbacks;
 738         target_timer_callback_t *next_callback;
 739         struct timeval now;
 740
 741         gettimeofday(&now, NULL);
 742
 743         while (callback)
 744         {
 745                 next_callback = callback->next;
 746
 747                 if ((!checktime&&callback->periodic)||
 748                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 749                                                 || (now.tv_sec > callback->when.tv_sec)))
 750                 {
 751                         if(callback->callback != NULL)
 752                         {
 753                                 callback->callback(callback->priv);
 754                                 if (callback->periodic)
 755                                 {
 756                                         int time_ms = callback->time_ms;
 757                                         callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 758                                         time_ms -= (time_ms % 1000);
 759                                         callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 760                                         if (callback->when.tv_usec > 1000000)
 761                                         {
 762                                                 callback->when.tv_usec = callback->when.tv_usec - 1000000;
 763                                                 callback->when.tv_sec += 1;
 764                                         }
 765                                 }
 766                                 else
 767                                         target_unregister_timer_callback(callback->callback, callback->priv);
 768                         }
 769                 }
 770
 771                 callback = next_callback;
 772         }
 773
 774         return ERROR_OK;
 775 }
 776
 777 int target_call_timer_callbacks()
 778 {
 779         return target_call_timer_callbacks_check_time(1);
 780 }
 781
 782 /* invoke periodic callbacks immediately */
 783 int target_call_timer_callbacks_now()
 784 {
 785         return target_call_timer_callbacks(0);
 786 }
 787
 788 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 789 {
 790         working_area_t *c = target->working_areas;
 791         working_area_t *new_wa = NULL;
 792
 793         /* Reevaluate working area address based on MMU state*/
 794         if (target->working_areas == NULL)
 795         {
 796                 int retval;
 797                 int enabled;
 798                 retval = target->type->mmu(target, &enabled);
 799                 if (retval != ERROR_OK)
 800                 {
 801                         return retval;
 802                 }
 803                 if (enabled)
 804                 {
 805                         target->working_area = target->working_area_virt;
 806                 }
 807                 else
 808                 {
 809                         target->working_area = target->working_area_phys;
 810                 }
 811         }
 812
 813         /* only allocate multiples of 4 byte */
 814         if (size % 4)
 815         {
 816                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 817                 size = CEIL(size, 4);
 818         }
 819
 820         /* see if there's already a matching working area */
 821         while (c)
 822         {
 823                 if ((c->free) && (c->size == size))
 824                 {
 825                         new_wa = c;
 826                         break;
 827                 }
 828                 c = c->next;
 829         }
 830
 831         /* if not, allocate a new one */
 832         if (!new_wa)
 833         {
 834                 working_area_t **p = &target->working_areas;
 835                 u32 first_free = target->working_area;
 836                 u32 free_size = target->working_area_size;
 837
 838                 LOG_DEBUG("allocating new working area");
 839
 840                 c = target->working_areas;
 841                 while (c)
 842                 {
 843                         first_free += c->size;
 844                         free_size -= c->size;
 845                         p = &c->next;
 846                         c = c->next;
 847                 }
 848
 849                 if (free_size < size)
 850                 {
 851                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 852                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 853                 }
 854
 855                 new_wa = malloc(sizeof(working_area_t));
 856                 new_wa->next = NULL;
 857                 new_wa->size = size;
 858                 new_wa->address = first_free;
 859
 860                 if (target->backup_working_area)
 861                 {
 862                         new_wa->backup = malloc(new_wa->size);
 863                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 864                 }
 865                 else
 866                 {
 867                         new_wa->backup = NULL;
 868                 }
 869
 870                 /* put new entry in list */
 871                 *p = new_wa;
 872         }
 873
 874         /* mark as used, and return the new (reused) area */
 875         new_wa->free = 0;
 876         *area = new_wa;
 877
 878         /* user pointer */
 879         new_wa->user = area;
 880
 881         return ERROR_OK;
 882 }
 883
 884 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 885 {
 886         if (area->free)
 887                 return ERROR_OK;
 888
 889         if (restore&&target->backup_working_area)
 890                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 891
 892         area->free = 1;
 893
 894         /* mark user pointer invalid */
 895         *area->user = NULL;
 896         area->user = NULL;
 897
 898         return ERROR_OK;
 899 }
 900
 901 int target_free_working_area(struct target_s *target, working_area_t *area)
 902 {
 903         return target_free_working_area_restore(target, area, 1);
 904 }
 905
 906 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 907 {
 908         working_area_t *c = target->working_areas;
 909
 910         while (c)
 911         {
 912                 working_area_t *next = c->next;
 913                 target_free_working_area_restore(target, c, restore);
 914
 915                 if (c->backup)
 916                         free(c->backup);
 917
 918                 free(c);
 919
 920                 c = next;
 921         }
 922
 923         target->working_areas = NULL;
 924
 925         return ERROR_OK;
 926 }
 927
 928 int target_free_all_working_areas(struct target_s *target)
 929 {
 930         return target_free_all_working_areas_restore(target, 1);
 931 }
 932
 933 int target_register_commands(struct command_context_s *cmd_ctx)
 934 {
 935         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 936         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 937         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
 938         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 939         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 940         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 941
 942
 943         /* script procedures */
 944         register_jim(cmd_ctx, "openocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing");
 945         register_jim(cmd_ctx, "openocd_array2mem", jim_mem2array, "convert a TCL array to memory locations and write the values");
 946         return ERROR_OK;
 947 }
 948
 949 int target_arch_state(struct target_s *target)
 950 {
 951         int retval;
 952         if (target==NULL)
 953         {
 954                 LOG_USER("No target has been configured");
 955                 return ERROR_OK;
 956         }
 957
 958         LOG_USER("target state: %s", target_state_strings[target->state]);
 959
 960         if (target->state!=TARGET_HALTED)
 961                 return ERROR_OK;
 962
 963         retval=target->type->arch_state(target);
 964         return retval;
 965 }
 966
 967 /* Single aligned words are guaranteed to use 16 or 32 bit access
 968  * mode respectively, otherwise data is handled as quickly as
 969  * possible
 970  */
 971 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 972 {
 973         int retval;
 974         if (!target->type->examined)
 975         {
 976                 LOG_ERROR("Target not examined yet");
 977                 return ERROR_FAIL;
 978         }
 979
 980         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 981
 982         if (((address % 2) == 0) && (size == 2))
 983         {
 984                 return target->type->write_memory(target, address, 2, 1, buffer);
 985         }
 986
 987         /* handle unaligned head bytes */
 988         if (address % 4)
 989         {
 990                 int unaligned = 4 - (address % 4);
 991
 992                 if (unaligned > size)
 993                         unaligned = size;
 994
 995                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 996                         return retval;
 997
 998                 buffer += unaligned;
 999                 address += unaligned;
1000                 size -= unaligned;
1001         }
1002
1003         /* handle aligned words */
1004         if (size >= 4)
1005         {
1006                 int aligned = size - (size % 4);
1007
1008                 /* use bulk writes above a certain limit. This may have to be changed */
1009                 if (aligned > 128)
1010                 {
1011                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
1012                                 return retval;
1013                 }
1014                 else
1015                 {
1016                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1017                                 return retval;
1018                 }
1019
1020                 buffer += aligned;
1021                 address += aligned;
1022                 size -= aligned;
1023         }
1024
1025         /* handle tail writes of less than 4 bytes */
1026         if (size > 0)
1027         {
1028                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
1029                         return retval;
1030         }
1031
1032         return ERROR_OK;
1033 }
1034
1035
1036 /* Single aligned words are guaranteed to use 16 or 32 bit access
1037  * mode respectively, otherwise data is handled as quickly as
1038  * possible
1039  */
1040 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
1041 {
1042         int retval;
1043         if (!target->type->examined)
1044         {
1045                 LOG_ERROR("Target not examined yet");
1046                 return ERROR_FAIL;
1047         }
1048
1049         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
1050
1051         if (((address % 2) == 0) && (size == 2))
1052         {
1053                 return target->type->read_memory(target, address, 2, 1, buffer);
1054         }
1055
1056         /* handle unaligned head bytes */
1057         if (address % 4)
1058         {
1059                 int unaligned = 4 - (address % 4);
1060
1061                 if (unaligned > size)
1062                         unaligned = size;
1063
1064                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1065                         return retval;
1066
1067                 buffer += unaligned;
1068                 address += unaligned;
1069                 size -= unaligned;
1070         }
1071
1072         /* handle aligned words */
1073         if (size >= 4)
1074         {
1075                 int aligned = size - (size % 4);
1076
1077                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1078                         return retval;
1079
1080                 buffer += aligned;
1081                 address += aligned;
1082                 size -= aligned;
1083         }
1084
1085         /* handle tail writes of less than 4 bytes */
1086         if (size > 0)
1087         {
1088                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1089                         return retval;
1090         }
1091
1092         return ERROR_OK;
1093 }
1094
1095 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
1096 {
1097         u8 *buffer;
1098         int retval;
1099         int i;
1100         u32 checksum = 0;
1101         if (!target->type->examined)
1102         {
1103                 LOG_ERROR("Target not examined yet");
1104                 return ERROR_FAIL;
1105         }
1106
1107         if ((retval = target->type->checksum_memory(target, address,
1108                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1109         {
1110                 buffer = malloc(size);
1111                 if (buffer == NULL)
1112                 {
1113                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
1114                         return ERROR_INVALID_ARGUMENTS;
1115                 }
1116                 retval = target_read_buffer(target, address, size, buffer);
1117                 if (retval != ERROR_OK)
1118                 {
1119                         free(buffer);
1120                         return retval;
1121                 }
1122
1123                 /* convert to target endianess */
1124                 for (i = 0; i < (size/sizeof(u32)); i++)
1125                 {
1126                         u32 target_data;
1127                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
1128                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
1129                 }
1130
1131                 retval = image_calculate_checksum( buffer, size, &checksum );
1132                 free(buffer);
1133         }
1134
1135         *crc = checksum;
1136
1137         return retval;
1138 }
1139
1140 int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank)
1141 {
1142         int retval;
1143         if (!target->type->examined)
1144         {
1145                 LOG_ERROR("Target not examined yet");
1146                 return ERROR_FAIL;
1147         }
1148
1149         if (target->type->blank_check_memory == 0)
1150                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1151
1152         retval = target->type->blank_check_memory(target, address, size, blank);
1153
1154         return retval;
1155 }
1156
1157 int target_read_u32(struct target_s *target, u32 address, u32 *value)
1158 {
1159         u8 value_buf[4];
1160         if (!target->type->examined)
1161         {
1162                 LOG_ERROR("Target not examined yet");
1163                 return ERROR_FAIL;
1164         }
1165
1166         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
1167
1168         if (retval == ERROR_OK)
1169         {
1170                 *value = target_buffer_get_u32(target, value_buf);
1171                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1172         }
1173         else
1174         {
1175                 *value = 0x0;
1176                 LOG_DEBUG("address: 0x%8.8x failed", address);
1177         }
1178
1179         return retval;
1180 }
1181
1182 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1183 {
1184         u8 value_buf[2];
1185         if (!target->type->examined)
1186         {
1187                 LOG_ERROR("Target not examined yet");
1188                 return ERROR_FAIL;
1189         }
1190
1191         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1192
1193         if (retval == ERROR_OK)
1194         {
1195                 *value = target_buffer_get_u16(target, value_buf);
1196                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1197         }
1198         else
1199         {
1200                 *value = 0x0;
1201                 LOG_DEBUG("address: 0x%8.8x failed", address);
1202         }
1203
1204         return retval;
1205 }
1206
1207 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1208 {
1209         int retval = target->type->read_memory(target, address, 1, 1, value);
1210         if (!target->type->examined)
1211         {
1212                 LOG_ERROR("Target not examined yet");
1213                 return ERROR_FAIL;
1214         }
1215
1216         if (retval == ERROR_OK)
1217         {
1218                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1219         }
1220         else
1221         {
1222                 *value = 0x0;
1223                 LOG_DEBUG("address: 0x%8.8x failed", address);
1224         }
1225
1226         return retval;
1227 }
1228
1229 int target_write_u32(struct target_s *target, u32 address, u32 value)
1230 {
1231         int retval;
1232         u8 value_buf[4];
1233         if (!target->type->examined)
1234         {
1235                 LOG_ERROR("Target not examined yet");
1236                 return ERROR_FAIL;
1237         }
1238
1239         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1240
1241         target_buffer_set_u32(target, value_buf, value);
1242         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1243         {
1244                 LOG_DEBUG("failed: %i", retval);
1245         }
1246
1247         return retval;
1248 }
1249
1250 int target_write_u16(struct target_s *target, u32 address, u16 value)
1251 {
1252         int retval;
1253         u8 value_buf[2];
1254         if (!target->type->examined)
1255         {
1256                 LOG_ERROR("Target not examined yet");
1257                 return ERROR_FAIL;
1258         }
1259
1260         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1261
1262         target_buffer_set_u16(target, value_buf, value);
1263         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1264         {
1265                 LOG_DEBUG("failed: %i", retval);
1266         }
1267
1268         return retval;
1269 }
1270
1271 int target_write_u8(struct target_s *target, u32 address, u8 value)
1272 {
1273         int retval;
1274         if (!target->type->examined)
1275         {
1276                 LOG_ERROR("Target not examined yet");
1277                 return ERROR_FAIL;
1278         }
1279
1280         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1281
1282         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1283         {
1284                 LOG_DEBUG("failed: %i", retval);
1285         }
1286
1287         return retval;
1288 }
1289
1290 int target_register_user_commands(struct command_context_s *cmd_ctx)
1291 {
1292         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1293         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1294         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1295         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1296         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1297         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1298         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1299         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1300
1301         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1302         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1303         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1304
1305         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1306         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1307         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1308
1309         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1310         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1311         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1312         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1313
1314         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1315         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1316         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1317         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1318         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1319
1320         target_request_register_commands(cmd_ctx);
1321         trace_register_commands(cmd_ctx);
1322
1323         return ERROR_OK;
1324 }
1325
1326 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1327 {
1328         target_t *target = targets;
1329         int count = 0;
1330
1331         if (argc == 1)
1332         {
1333                 int num = strtoul(args[0], NULL, 0);
1334
1335                 while (target)
1336                 {
1337                         count++;
1338                         target = target->next;
1339                 }
1340
1341                 if (num < count)
1342                         cmd_ctx->current_target = num;
1343                 else
1344                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1345
1346                 return ERROR_OK;
1347         }
1348
1349         while (target)
1350         {
1351                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1352                 target = target->next;
1353         }
1354
1355         return ERROR_OK;
1356 }
1357
1358 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1359 {
1360         int i;
1361         int found = 0;
1362
1363         if (argc < 3)
1364         {
1365                 return ERROR_COMMAND_SYNTAX_ERROR;
1366         }
1367
1368         /* search for the specified target */
1369         if (args[0] && (args[0][0] != 0))
1370         {
1371                 for (i = 0; target_types[i]; i++)
1372                 {
1373                         if (strcmp(args[0], target_types[i]->name) == 0)
1374                         {
1375                                 target_t **last_target_p = &targets;
1376
1377                                 /* register target specific commands */
1378                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1379                                 {
1380                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1381                                         exit(-1);
1382                                 }
1383
1384                                 if (*last_target_p)
1385                                 {
1386                                         while ((*last_target_p)->next)
1387                                                 last_target_p = &((*last_target_p)->next);
1388                                         last_target_p = &((*last_target_p)->next);
1389                                 }
1390
1391                                 *last_target_p = malloc(sizeof(target_t));
1392
1393                                 /* allocate memory for each unique target type */
1394                                 (*last_target_p)->type = (target_type_t*)malloc(sizeof(target_type_t));
1395                                 *((*last_target_p)->type) = *target_types[i];
1396
1397                                 if (strcmp(args[1], "big") == 0)
1398                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1399                                 else if (strcmp(args[1], "little") == 0)
1400                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1401                                 else
1402                                 {
1403                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1404                                         return ERROR_COMMAND_SYNTAX_ERROR;
1405                                 }
1406
1407                                 /* what to do on a target reset */
1408                                 (*last_target_p)->reset_mode = RESET_INIT; /* default */
1409                                 if (strcmp(args[2], "reset_halt") == 0)
1410                                         (*last_target_p)->reset_mode = RESET_HALT;
1411                                 else if (strcmp(args[2], "reset_run") == 0)
1412                                         (*last_target_p)->reset_mode = RESET_RUN;
1413                                 else if (strcmp(args[2], "reset_init") == 0)
1414                                         (*last_target_p)->reset_mode = RESET_INIT;
1415                                 else if (strcmp(args[2], "run_and_halt") == 0)
1416                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1417                                 else if (strcmp(args[2], "run_and_init") == 0)
1418                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1419                                 else
1420                                 {
1421                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1422                                         args--;
1423                                         argc++;
1424                                 }
1425                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1426
1427                                 (*last_target_p)->working_area = 0x0;
1428                                 (*last_target_p)->working_area_size = 0x0;
1429                                 (*last_target_p)->working_areas = NULL;
1430                                 (*last_target_p)->backup_working_area = 0;
1431
1432                                 (*last_target_p)->state = TARGET_UNKNOWN;
1433                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1434                                 (*last_target_p)->reg_cache = NULL;
1435                                 (*last_target_p)->breakpoints = NULL;
1436                                 (*last_target_p)->watchpoints = NULL;
1437                                 (*last_target_p)->next = NULL;
1438                                 (*last_target_p)->arch_info = NULL;
1439
1440                                 /* initialize trace information */
1441                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1442                                 (*last_target_p)->trace_info->num_trace_points = 0;
1443                                 (*last_target_p)->trace_info->trace_points_size = 0;
1444                                 (*last_target_p)->trace_info->trace_points = NULL;
1445                                 (*last_target_p)->trace_info->trace_history_size = 0;
1446                                 (*last_target_p)->trace_info->trace_history = NULL;
1447                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1448                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1449
1450                                 (*last_target_p)->dbgmsg = NULL;
1451                                 (*last_target_p)->dbg_msg_enabled = 0;
1452
1453                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1454
1455                                 found = 1;
1456                                 break;
1457                         }
1458                 }
1459         }
1460
1461         /* no matching target found */
1462         if (!found)
1463         {
1464                 LOG_ERROR("target '%s' not found", args[0]);
1465                 return ERROR_COMMAND_SYNTAX_ERROR;
1466         }
1467
1468         return ERROR_OK;
1469 }
1470
1471 int target_invoke_script(struct command_context_s *cmd_ctx, target_t *target, char *name)
1472 {
1473         return command_run_linef(cmd_ctx, " if {[catch {info body target_%s_%d} t]==0} {target_%s_%d}",
1474         name, get_num_by_target(target),
1475         name, get_num_by_target(target));
1476 }
1477
1478 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1479 {
1480         target_t *target = NULL;
1481
1482         if (argc < 2)
1483         {
1484                 return ERROR_COMMAND_SYNTAX_ERROR;
1485         }
1486
1487         target = get_target_by_num(strtoul(args[0], NULL, 0));
1488         if (!target)
1489         {
1490                 return ERROR_COMMAND_SYNTAX_ERROR;
1491         }
1492
1493         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1494
1495         return ERROR_OK;
1496 }
1497
1498 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1499 {
1500         target_t *target = NULL;
1501
1502         if ((argc < 4) || (argc > 5))
1503         {
1504                 return ERROR_COMMAND_SYNTAX_ERROR;
1505         }
1506
1507         target = get_target_by_num(strtoul(args[0], NULL, 0));
1508         if (!target)
1509         {
1510                 return ERROR_COMMAND_SYNTAX_ERROR;
1511         }
1512         target_free_all_working_areas(target);
1513
1514         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1515         if (argc == 5)
1516         {
1517                 target->working_area_virt = strtoul(args[4], NULL, 0);
1518         }
1519         target->working_area_size = strtoul(args[2], NULL, 0);
1520
1521         if (strcmp(args[3], "backup") == 0)
1522         {
1523                 target->backup_working_area = 1;
1524         }
1525         else if (strcmp(args[3], "nobackup") == 0)
1526         {
1527                 target->backup_working_area = 0;
1528         }
1529         else
1530         {
1531                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1532                 return ERROR_COMMAND_SYNTAX_ERROR;
1533         }
1534
1535         return ERROR_OK;
1536 }
1537
1538
1539 /* process target state changes */
1540 int handle_target(void *priv)
1541 {
1542         target_t *target = targets;
1543
1544         while (target)
1545         {
1546                 if (target_continous_poll)
1547                 {
1548                         /* polling may fail silently until the target has been examined */
1549                         target_poll(target);
1550                 }
1551
1552                 target = target->next;
1553         }
1554
1555         return ERROR_OK;
1556 }
1557
1558 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1559 {
1560         target_t *target;
1561         reg_t *reg = NULL;
1562         int count = 0;
1563         char *value;
1564
1565         LOG_DEBUG("-");
1566
1567         target = get_current_target(cmd_ctx);
1568
1569         /* list all available registers for the current target */
1570         if (argc == 0)
1571         {
1572                 reg_cache_t *cache = target->reg_cache;
1573
1574                 count = 0;
1575                 while(cache)
1576                 {
1577                         int i;
1578                         for (i = 0; i < cache->num_regs; i++)
1579                         {
1580                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1581                                 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);
1582                                 free(value);
1583                         }
1584                         cache = cache->next;
1585                 }
1586
1587                 return ERROR_OK;
1588         }
1589
1590         /* access a single register by its ordinal number */
1591         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1592         {
1593                 int num = strtoul(args[0], NULL, 0);
1594                 reg_cache_t *cache = target->reg_cache;
1595
1596                 count = 0;
1597                 while(cache)
1598                 {
1599                         int i;
1600                         for (i = 0; i < cache->num_regs; i++)
1601                         {
1602                                 if (count++ == num)
1603                                 {
1604                                         reg = &cache->reg_list[i];
1605                                         break;
1606                                 }
1607                         }
1608                         if (reg)
1609                                 break;
1610                         cache = cache->next;
1611                 }
1612
1613                 if (!reg)
1614                 {
1615                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1616                         return ERROR_OK;
1617                 }
1618         } else /* access a single register by its name */
1619         {
1620                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1621
1622                 if (!reg)
1623                 {
1624                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1625                         return ERROR_OK;
1626                 }
1627         }
1628
1629         /* display a register */
1630         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1631         {
1632                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1633                         reg->valid = 0;
1634
1635                 if (reg->valid == 0)
1636                 {
1637                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1638                         if (arch_type == NULL)
1639                         {
1640                                 LOG_ERROR("BUG: encountered unregistered arch type");
1641                                 return ERROR_OK;
1642                         }
1643                         arch_type->get(reg);
1644                 }
1645                 value = buf_to_str(reg->value, reg->size, 16);
1646                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1647                 free(value);
1648                 return ERROR_OK;
1649         }
1650
1651         /* set register value */
1652         if (argc == 2)
1653         {
1654                 u8 *buf = malloc(CEIL(reg->size, 8));
1655                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1656
1657                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1658                 if (arch_type == NULL)
1659                 {
1660                         LOG_ERROR("BUG: encountered unregistered arch type");
1661                         return ERROR_OK;
1662                 }
1663
1664                 arch_type->set(reg, buf);
1665
1666                 value = buf_to_str(reg->value, reg->size, 16);
1667                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1668                 free(value);
1669
1670                 free(buf);
1671
1672                 return ERROR_OK;
1673         }
1674
1675         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1676
1677         return ERROR_OK;
1678 }
1679
1680 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1681
1682 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1683 {
1684         target_t *target = get_current_target(cmd_ctx);
1685
1686         if (argc == 0)
1687         {
1688                 target_poll(target);
1689                 target_arch_state(target);
1690         }
1691         else
1692         {
1693                 if (strcmp(args[0], "on") == 0)
1694                 {
1695                         target_continous_poll = 1;
1696                 }
1697                 else if (strcmp(args[0], "off") == 0)
1698                 {
1699                         target_continous_poll = 0;
1700                 }
1701                 else
1702                 {
1703                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1704                 }
1705         }
1706
1707
1708         return ERROR_OK;
1709 }
1710
1711 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1712 {
1713         int ms = 5000;
1714
1715         if (argc > 0)
1716         {
1717                 char *end;
1718
1719                 ms = strtoul(args[0], &end, 0) * 1000;
1720                 if (*end)
1721                 {
1722                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1723                         return ERROR_OK;
1724                 }
1725         }
1726
1727         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1728 }
1729
1730 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1731 {
1732         int retval;
1733         struct timeval timeout, now;
1734         int once=1;
1735         gettimeofday(&timeout, NULL);
1736         timeval_add_time(&timeout, 0, ms * 1000);
1737
1738         target_t *target = get_current_target(cmd_ctx);
1739         for (;;)
1740         {
1741                 if ((retval=target_poll(target))!=ERROR_OK)
1742                         return retval;
1743                 target_call_timer_callbacks_now();
1744                 if (target->state == state)
1745                 {
1746                         break;
1747                 }
1748                 if (once)
1749                 {
1750                         once=0;
1751                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1752                 }
1753
1754                 gettimeofday(&now, NULL);
1755                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1756                 {
1757                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1758                         break;
1759                 }
1760         }
1761
1762         return ERROR_OK;
1763 }
1764
1765 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1766 {
1767         int retval;
1768         target_t *target = get_current_target(cmd_ctx);
1769
1770         LOG_DEBUG("-");
1771
1772         if ((retval = target_halt(target)) != ERROR_OK)
1773         {
1774                 return retval;
1775         }
1776
1777         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1778 }
1779
1780 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1781 {
1782         target_t *target = get_current_target(cmd_ctx);
1783
1784         LOG_USER("requesting target halt and executing a soft reset");
1785
1786         target->type->soft_reset_halt(target);
1787
1788         return ERROR_OK;
1789 }
1790
1791 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1792 {
1793         target_t *target = get_current_target(cmd_ctx);
1794         enum target_reset_mode reset_mode = target->reset_mode;
1795         enum target_reset_mode save = target->reset_mode;
1796
1797         LOG_DEBUG("-");
1798
1799         if (argc >= 1)
1800         {
1801                 if (strcmp("run", args[0]) == 0)
1802                         reset_mode = RESET_RUN;
1803                 else if (strcmp("halt", args[0]) == 0)
1804                         reset_mode = RESET_HALT;
1805                 else if (strcmp("init", args[0]) == 0)
1806                         reset_mode = RESET_INIT;
1807                 else if (strcmp("run_and_halt", args[0]) == 0)
1808                 {
1809                         reset_mode = RESET_RUN_AND_HALT;
1810                         if (argc >= 2)
1811                         {
1812                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1813                         }
1814                 }
1815                 else if (strcmp("run_and_init", args[0]) == 0)
1816                 {
1817                         reset_mode = RESET_RUN_AND_INIT;
1818                         if (argc >= 2)
1819                         {
1820                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1821                         }
1822                 }
1823                 else
1824                 {
1825                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1826                         return ERROR_OK;
1827                 }
1828         }
1829
1830         /* temporarily modify mode of current reset target */
1831         target->reset_mode = reset_mode;
1832
1833         /* reset *all* targets */
1834         target_process_reset(cmd_ctx);
1835
1836         /* Restore default reset mode for this target */
1837     target->reset_mode = save;
1838
1839         return ERROR_OK;
1840 }
1841
1842 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1843 {
1844         int retval;
1845         target_t *target = get_current_target(cmd_ctx);
1846
1847         target_invoke_script(cmd_ctx, target, "pre_resume");
1848
1849         if (argc == 0)
1850                 retval = target_resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1851         else if (argc == 1)
1852                 retval = target_resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1853         else
1854         {
1855                 return ERROR_COMMAND_SYNTAX_ERROR;
1856         }
1857
1858         return retval;
1859 }
1860
1861 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1862 {
1863         target_t *target = get_current_target(cmd_ctx);
1864
1865         LOG_DEBUG("-");
1866
1867         if (argc == 0)
1868                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1869
1870         if (argc == 1)
1871                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1872
1873         return ERROR_OK;
1874 }
1875
1876 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1877 {
1878         const int line_bytecnt = 32;
1879         int count = 1;
1880         int size = 4;
1881         u32 address = 0;
1882         int line_modulo;
1883         int i;
1884
1885         char output[128];
1886         int output_len;
1887
1888         int retval;
1889
1890         u8 *buffer;
1891         target_t *target = get_current_target(cmd_ctx);
1892
1893         if (argc < 1)
1894                 return ERROR_OK;
1895
1896         if (argc == 2)
1897                 count = strtoul(args[1], NULL, 0);
1898
1899         address = strtoul(args[0], NULL, 0);
1900
1901
1902         switch (cmd[2])
1903         {
1904                 case 'w':
1905                         size = 4; line_modulo = line_bytecnt / 4;
1906                         break;
1907                 case 'h':
1908                         size = 2; line_modulo = line_bytecnt / 2;
1909                         break;
1910                 case 'b':
1911                         size = 1; line_modulo = line_bytecnt / 1;
1912                         break;
1913                 default:
1914                         return ERROR_OK;
1915         }
1916
1917         buffer = calloc(count, size);
1918         retval  = target->type->read_memory(target, address, size, count, buffer);
1919         if (retval == ERROR_OK)
1920         {
1921                 output_len = 0;
1922
1923                 for (i = 0; i < count; i++)
1924                 {
1925                         if (i%line_modulo == 0)
1926                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1927
1928                         switch (size)
1929                         {
1930                                 case 4:
1931                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1932                                         break;
1933                                 case 2:
1934                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1935                                         break;
1936                                 case 1:
1937                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1938                                         break;
1939                         }
1940
1941                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1942                         {
1943                                 command_print(cmd_ctx, output);
1944                                 output_len = 0;
1945                         }
1946                 }
1947         }
1948
1949         free(buffer);
1950
1951         return retval;
1952 }
1953
1954 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1955 {
1956         u32 address = 0;
1957         u32 value = 0;
1958         int count = 1;
1959         int i;
1960         int wordsize;
1961         target_t *target = get_current_target(cmd_ctx);
1962         u8 value_buf[4];
1963
1964          if ((argc < 2) || (argc > 3))
1965                 return ERROR_COMMAND_SYNTAX_ERROR;
1966
1967         address = strtoul(args[0], NULL, 0);
1968         value = strtoul(args[1], NULL, 0);
1969         if (argc == 3)
1970                 count = strtoul(args[2], NULL, 0);
1971
1972         switch (cmd[2])
1973         {
1974                 case 'w':
1975                         wordsize = 4;
1976                         target_buffer_set_u32(target, value_buf, value);
1977                         break;
1978                 case 'h':
1979                         wordsize = 2;
1980                         target_buffer_set_u16(target, value_buf, value);
1981                         break;
1982                 case 'b':
1983                         wordsize = 1;
1984                         value_buf[0] = value;
1985                         break;
1986                 default:
1987                         return ERROR_COMMAND_SYNTAX_ERROR;
1988         }
1989         for (i=0; i<count; i++)
1990         {
1991                 int retval;
1992                 switch (wordsize)
1993                 {
1994                         case 4:
1995                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1996                                 break;
1997                         case 2:
1998                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1999                                 break;
2000                         case 1:
2001                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
2002                         break;
2003                         default:
2004                         return ERROR_OK;
2005                 }
2006                 if (retval!=ERROR_OK)
2007                 {
2008                         return retval;
2009                 }
2010         }
2011
2012         return ERROR_OK;
2013
2014 }
2015
2016 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2017 {
2018         u8 *buffer;
2019         u32 buf_cnt;
2020         u32 image_size;
2021         int i;
2022         int retval;
2023
2024         image_t image;
2025
2026         duration_t duration;
2027         char *duration_text;
2028
2029         target_t *target = get_current_target(cmd_ctx);
2030
2031         if (argc < 1)
2032         {
2033                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
2034                 return ERROR_OK;
2035         }
2036
2037         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
2038         if (argc >= 2)
2039         {
2040                 image.base_address_set = 1;
2041                 image.base_address = strtoul(args[1], NULL, 0);
2042         }
2043         else
2044         {
2045                 image.base_address_set = 0;
2046         }
2047
2048         image.start_address_set = 0;
2049
2050         duration_start_measure(&duration);
2051
2052         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
2053         {
2054                 return ERROR_OK;
2055         }
2056
2057         image_size = 0x0;
2058         retval = ERROR_OK;
2059         for (i = 0; i < image.num_sections; i++)
2060         {
2061                 buffer = malloc(image.sections[i].size);
2062                 if (buffer == NULL)
2063                 {
2064                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2065                         break;
2066                 }
2067
2068                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2069                 {
2070                         free(buffer);
2071                         break;
2072                 }
2073                 if ((retval = target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer)) != ERROR_OK)
2074                 {
2075                         free(buffer);
2076                         break;
2077                 }
2078                 image_size += buf_cnt;
2079                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
2080
2081                 free(buffer);
2082         }
2083
2084         duration_stop_measure(&duration, &duration_text);
2085         if (retval==ERROR_OK)
2086         {
2087                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
2088         }
2089         free(duration_text);
2090
2091         image_close(&image);
2092
2093         return retval;
2094
2095 }
2096
2097 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2098 {
2099         fileio_t fileio;
2100
2101         u32 address;
2102         u32 size;
2103         u8 buffer[560];
2104         int retval=ERROR_OK;
2105
2106         duration_t duration;
2107         char *duration_text;
2108
2109         target_t *target = get_current_target(cmd_ctx);
2110
2111         if (argc != 3)
2112         {
2113                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2114                 return ERROR_OK;
2115         }
2116
2117         address = strtoul(args[1], NULL, 0);
2118         size = strtoul(args[2], NULL, 0);
2119
2120         if ((address & 3) || (size & 3))
2121         {
2122                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
2123                 return ERROR_OK;
2124         }
2125
2126         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2127         {
2128                 return ERROR_OK;
2129         }
2130
2131         duration_start_measure(&duration);
2132
2133         while (size > 0)
2134         {
2135                 u32 size_written;
2136                 u32 this_run_size = (size > 560) ? 560 : size;
2137
2138                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2139                 if (retval != ERROR_OK)
2140                 {
2141                         break;
2142                 }
2143
2144                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2145                 if (retval != ERROR_OK)
2146                 {
2147                         break;
2148                 }
2149
2150                 size -= this_run_size;
2151                 address += this_run_size;
2152         }
2153
2154         fileio_close(&fileio);
2155
2156         duration_stop_measure(&duration, &duration_text);
2157         if (retval==ERROR_OK)
2158         {
2159                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2160         }
2161         free(duration_text);
2162
2163         return ERROR_OK;
2164 }
2165
2166 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2167 {
2168         u8 *buffer;
2169         u32 buf_cnt;
2170         u32 image_size;
2171         int i;
2172         int retval;
2173         u32 checksum = 0;
2174         u32 mem_checksum = 0;
2175
2176         image_t image;
2177
2178         duration_t duration;
2179         char *duration_text;
2180
2181         target_t *target = get_current_target(cmd_ctx);
2182
2183         if (argc < 1)
2184         {
2185                 return ERROR_COMMAND_SYNTAX_ERROR;
2186         }
2187
2188         if (!target)
2189         {
2190                 LOG_ERROR("no target selected");
2191                 return ERROR_FAIL;
2192         }
2193
2194         duration_start_measure(&duration);
2195
2196         if (argc >= 2)
2197         {
2198                 image.base_address_set = 1;
2199                 image.base_address = strtoul(args[1], NULL, 0);
2200         }
2201         else
2202         {
2203                 image.base_address_set = 0;
2204                 image.base_address = 0x0;
2205         }
2206
2207         image.start_address_set = 0;
2208
2209         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2210         {
2211                 return retval;
2212         }
2213
2214         image_size = 0x0;
2215         retval=ERROR_OK;
2216         for (i = 0; i < image.num_sections; i++)
2217         {
2218                 buffer = malloc(image.sections[i].size);
2219                 if (buffer == NULL)
2220                 {
2221                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2222                         break;
2223                 }
2224                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2225                 {
2226                         free(buffer);
2227                         break;
2228                 }
2229
2230                 /* calculate checksum of image */
2231                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2232
2233                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2234                 if( retval != ERROR_OK )
2235                 {
2236                         free(buffer);
2237                         break;
2238                 }
2239
2240                 if( checksum != mem_checksum )
2241                 {
2242                         /* failed crc checksum, fall back to a binary compare */
2243                         u8 *data;
2244
2245                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2246
2247                         data = (u8*)malloc(buf_cnt);
2248
2249                         /* Can we use 32bit word accesses? */
2250                         int size = 1;
2251                         int count = buf_cnt;
2252                         if ((count % 4) == 0)
2253                         {
2254                                 size *= 4;
2255                                 count /= 4;
2256                         }
2257                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2258                         if (retval == ERROR_OK)
2259                         {
2260                                 int t;
2261                                 for (t = 0; t < buf_cnt; t++)
2262                                 {
2263                                         if (data[t] != buffer[t])
2264                                         {
2265                                                 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]);
2266                                                 free(data);
2267                                                 free(buffer);
2268                                                 retval=ERROR_FAIL;
2269                                                 goto done;
2270                                         }
2271                                 }
2272                         }
2273
2274                         free(data);
2275                 }
2276
2277                 free(buffer);
2278                 image_size += buf_cnt;
2279         }
2280 done:
2281         duration_stop_measure(&duration, &duration_text);
2282         if (retval==ERROR_OK)
2283         {
2284                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2285         }
2286         free(duration_text);
2287
2288         image_close(&image);
2289
2290         return retval;
2291 }
2292
2293 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2294 {
2295         int retval;
2296         target_t *target = get_current_target(cmd_ctx);
2297
2298         if (argc == 0)
2299         {
2300                 breakpoint_t *breakpoint = target->breakpoints;
2301
2302                 while (breakpoint)
2303                 {
2304                         if (breakpoint->type == BKPT_SOFT)
2305                         {
2306                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2307                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2308                                 free(buf);
2309                         }
2310                         else
2311                         {
2312                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2313                         }
2314                         breakpoint = breakpoint->next;
2315                 }
2316         }
2317         else if (argc >= 2)
2318         {
2319                 int hw = BKPT_SOFT;
2320                 u32 length = 0;
2321
2322                 length = strtoul(args[1], NULL, 0);
2323
2324                 if (argc >= 3)
2325                         if (strcmp(args[2], "hw") == 0)
2326                                 hw = BKPT_HARD;
2327
2328                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2329                 {
2330                         LOG_ERROR("Failure setting breakpoints");
2331                 }
2332                 else
2333                 {
2334                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2335                 }
2336         }
2337         else
2338         {
2339                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2340         }
2341
2342         return ERROR_OK;
2343 }
2344
2345 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2346 {
2347         target_t *target = get_current_target(cmd_ctx);
2348
2349         if (argc > 0)
2350                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2351
2352         return ERROR_OK;
2353 }
2354
2355 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2356 {
2357         target_t *target = get_current_target(cmd_ctx);
2358         int retval;
2359
2360         if (argc == 0)
2361         {
2362                 watchpoint_t *watchpoint = target->watchpoints;
2363
2364                 while (watchpoint)
2365                 {
2366                         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);
2367                         watchpoint = watchpoint->next;
2368                 }
2369         }
2370         else if (argc >= 2)
2371         {
2372                 enum watchpoint_rw type = WPT_ACCESS;
2373                 u32 data_value = 0x0;
2374                 u32 data_mask = 0xffffffff;
2375
2376                 if (argc >= 3)
2377                 {
2378                         switch(args[2][0])
2379                         {
2380                                 case 'r':
2381                                         type = WPT_READ;
2382                                         break;
2383                                 case 'w':
2384                                         type = WPT_WRITE;
2385                                         break;
2386                                 case 'a':
2387                                         type = WPT_ACCESS;
2388                                         break;
2389                                 default:
2390                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2391                                         return ERROR_OK;
2392                         }
2393                 }
2394                 if (argc >= 4)
2395                 {
2396                         data_value = strtoul(args[3], NULL, 0);
2397                 }
2398                 if (argc >= 5)
2399                 {
2400                         data_mask = strtoul(args[4], NULL, 0);
2401                 }
2402
2403                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2404                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2405                 {
2406                         LOG_ERROR("Failure setting breakpoints");
2407                 }
2408         }
2409         else
2410         {
2411                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2412         }
2413
2414         return ERROR_OK;
2415 }
2416
2417 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2418 {
2419         target_t *target = get_current_target(cmd_ctx);
2420
2421         if (argc > 0)
2422                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2423
2424         return ERROR_OK;
2425 }
2426
2427 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2428 {
2429         int retval;
2430         target_t *target = get_current_target(cmd_ctx);
2431         u32 va;
2432         u32 pa;
2433
2434         if (argc != 1)
2435         {
2436                 return ERROR_COMMAND_SYNTAX_ERROR;
2437         }
2438         va = strtoul(args[0], NULL, 0);
2439
2440         retval = target->type->virt2phys(target, va, &pa);
2441         if (retval == ERROR_OK)
2442         {
2443                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2444         }
2445         else
2446         {
2447                 /* lower levels will have logged a detailed error which is
2448                  * forwarded to telnet/GDB session.
2449                  */
2450         }
2451         return retval;
2452 }
2453 static void writeLong(FILE *f, int l)
2454 {
2455         int i;
2456         for (i=0; i<4; i++)
2457         {
2458                 char c=(l>>(i*8))&0xff;
2459                 fwrite(&c, 1, 1, f);
2460         }
2461
2462 }
2463 static void writeString(FILE *f, char *s)
2464 {
2465         fwrite(s, 1, strlen(s), f);
2466 }
2467
2468
2469
2470 // Dump a gmon.out histogram file.
2471 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2472 {
2473         int i;
2474         FILE *f=fopen(filename, "w");
2475         if (f==NULL)
2476                 return;
2477         fwrite("gmon", 1, 4, f);
2478         writeLong(f, 0x00000001); // Version
2479         writeLong(f, 0); // padding
2480         writeLong(f, 0); // padding
2481         writeLong(f, 0); // padding
2482
2483         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2484
2485         // figure out bucket size
2486         u32 min=samples[0];
2487         u32 max=samples[0];
2488         for (i=0; i<sampleNum; i++)
2489         {
2490                 if (min>samples[i])
2491                 {
2492                         min=samples[i];
2493                 }
2494                 if (max<samples[i])
2495                 {
2496                         max=samples[i];
2497                 }
2498         }
2499
2500         int addressSpace=(max-min+1);
2501
2502         static int const maxBuckets=256*1024; // maximum buckets.
2503         int length=addressSpace;
2504         if (length > maxBuckets)
2505         {
2506                 length=maxBuckets;
2507         }
2508         int *buckets=malloc(sizeof(int)*length);
2509         if (buckets==NULL)
2510         {
2511                 fclose(f);
2512                 return;
2513         }
2514         memset(buckets, 0, sizeof(int)*length);
2515         for (i=0; i<sampleNum;i++)
2516         {
2517                 u32 address=samples[i];
2518                 long long a=address-min;
2519                 long long b=length-1;
2520                 long long c=addressSpace-1;
2521                 int index=(a*b)/c; // danger!!!! int32 overflows
2522                 buckets[index]++;
2523         }
2524
2525         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2526         writeLong(f, min);                                      // low_pc
2527         writeLong(f, max);              // high_pc
2528         writeLong(f, length);           // # of samples
2529         writeLong(f, 64000000);                         // 64MHz
2530         writeString(f, "seconds");
2531         for (i=0; i<(15-strlen("seconds")); i++)
2532         {
2533                 fwrite("", 1, 1, f);  // padding
2534         }
2535         writeString(f, "s");
2536
2537 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2538
2539         char *data=malloc(2*length);
2540         if (data!=NULL)
2541         {
2542                 for (i=0; i<length;i++)
2543                 {
2544                         int val;
2545                         val=buckets[i];
2546                         if (val>65535)
2547                         {
2548                                 val=65535;
2549                         }
2550                         data[i*2]=val&0xff;
2551                         data[i*2+1]=(val>>8)&0xff;
2552                 }
2553                 free(buckets);
2554                 fwrite(data, 1, length*2, f);
2555                 free(data);
2556         } else
2557         {
2558                 free(buckets);
2559         }
2560
2561         fclose(f);
2562 }
2563
2564 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2565 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2566 {
2567         target_t *target = get_current_target(cmd_ctx);
2568         struct timeval timeout, now;
2569
2570         gettimeofday(&timeout, NULL);
2571         if (argc!=2)
2572         {
2573                 return ERROR_COMMAND_SYNTAX_ERROR;
2574         }
2575         char *end;
2576         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2577         if (*end)
2578         {
2579                 return ERROR_OK;
2580         }
2581
2582         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2583
2584         static const int maxSample=10000;
2585         u32 *samples=malloc(sizeof(u32)*maxSample);
2586         if (samples==NULL)
2587                 return ERROR_OK;
2588
2589         int numSamples=0;
2590         int retval=ERROR_OK;
2591         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2592         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2593
2594         for (;;)
2595         {
2596                 target_poll(target);
2597                 if (target->state == TARGET_HALTED)
2598                 {
2599                         u32 t=*((u32 *)reg->value);
2600                         samples[numSamples++]=t;
2601                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2602                         target_poll(target);
2603                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2604                 } else if (target->state == TARGET_RUNNING)
2605                 {
2606                         // We want to quickly sample the PC.
2607                         target_halt(target);
2608                 } else
2609                 {
2610                         command_print(cmd_ctx, "Target not halted or running");
2611                         retval=ERROR_OK;
2612                         break;
2613                 }
2614                 if (retval!=ERROR_OK)
2615                 {
2616                         break;
2617                 }
2618
2619                 gettimeofday(&now, NULL);
2620                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2621                 {
2622                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2623                         target_poll(target);
2624                         if (target->state == TARGET_HALTED)
2625                         {
2626                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2627                         }
2628                         target_poll(target);
2629                         writeGmon(samples, numSamples, args[1]);
2630                         command_print(cmd_ctx, "Wrote %s", args[1]);
2631                         break;
2632                 }
2633         }
2634         free(samples);
2635
2636         return ERROR_OK;
2637 }
2638
2639 static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 val)
2640 {
2641         char *namebuf;
2642         Jim_Obj *nameObjPtr, *valObjPtr;
2643         int result;
2644
2645         namebuf = alloc_printf("%s(%d)", varname, idx);
2646         if (!namebuf)
2647                 return JIM_ERR;
2648
2649         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
2650         valObjPtr = Jim_NewIntObj(interp, val);
2651         if (!nameObjPtr || !valObjPtr)
2652         {
2653                 free(namebuf);
2654                 return JIM_ERR;
2655         }
2656
2657         Jim_IncrRefCount(nameObjPtr);
2658         Jim_IncrRefCount(valObjPtr);
2659         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
2660         Jim_DecrRefCount(interp, nameObjPtr);
2661         Jim_DecrRefCount(interp, valObjPtr);
2662         free(namebuf);
2663         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
2664         return result;
2665 }
2666
2667 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
2668 {
2669         target_t *target;
2670         command_context_t *context;
2671         long l;
2672         u32 width;
2673         u32 len;
2674         u32 addr;
2675         u32 count;
2676         u32 v;
2677         const char *varname;
2678         u8 buffer[4096];
2679         int  i, n, e, retval;
2680
2681         /* argv[1] = name of array to receive the data
2682          * argv[2] = desired width
2683          * argv[3] = memory address
2684          * argv[4] = count of times to read
2685          */
2686         if (argc != 5) {
2687                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
2688                 return JIM_ERR;
2689         }
2690         varname = Jim_GetString(argv[1], &len);
2691         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
2692
2693         e = Jim_GetLong(interp, argv[2], &l);
2694         width = l;
2695         if (e != JIM_OK) {
2696                 return e;
2697         }
2698
2699         e = Jim_GetLong(interp, argv[3], &l);
2700         addr = l;
2701         if (e != JIM_OK) {
2702                 return e;
2703         }
2704         e = Jim_GetLong(interp, argv[4], &l);
2705         len = l;
2706         if (e != JIM_OK) {
2707                 return e;
2708         }
2709         switch (width) {
2710                 case 8:
2711                         width = 1;
2712                         break;
2713                 case 16:
2714                         width = 2;
2715                         break;
2716                 case 32:
2717                         width = 4;
2718                         break;
2719                 default:
2720                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2721                         Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
2722                         return JIM_ERR;
2723         }
2724         if (len == 0) {
2725                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2726                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
2727                 return JIM_ERR;
2728         }
2729         if ((addr + (len * width)) < addr) {
2730                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2731                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
2732                 return JIM_ERR;
2733         }
2734         /* absurd transfer size? */
2735         if (len > 65536) {
2736                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2737                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
2738                 return JIM_ERR;
2739         }
2740
2741         if ((width == 1) ||
2742                 ((width == 2) && ((addr & 1) == 0)) ||
2743                 ((width == 4) && ((addr & 3) == 0))) {
2744                 /* all is well */
2745         } else {
2746                 char buf[100];
2747                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2748                 sprintf(buf, "mem2array address: 0x%08x is not aligned for %d byte reads", addr, width);
2749                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
2750                 return JIM_ERR;
2751         }
2752
2753         context = Jim_GetAssocData(interp, "context");
2754         if (context == NULL)
2755         {
2756                 LOG_ERROR("mem2array: no command context");
2757                 return JIM_ERR;
2758         }
2759         target = get_current_target(context);
2760         if (target == NULL)
2761         {
2762                 LOG_ERROR("mem2array: no current target");
2763                 return JIM_ERR;
2764         }
2765
2766         /* Transfer loop */
2767
2768         /* index counter */
2769         n = 0;
2770         /* assume ok */
2771         e = JIM_OK;
2772         while (len) {
2773                 /* Slurp... in buffer size chunks */
2774
2775                 count = len; /* in objects.. */
2776                 if (count > (sizeof(buffer)/width)) {
2777                         count = (sizeof(buffer)/width);
2778                 }
2779
2780                 retval = target->type->read_memory( target, addr, width, count, buffer );
2781                 if (retval != ERROR_OK) {
2782                         /* BOO !*/
2783                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count);
2784                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2785                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
2786                         e = JIM_ERR;
2787                         len = 0;
2788                 } else {
2789                         v = 0; /* shut up gcc */
2790                         for (i = 0 ;i < count ;i++, n++) {
2791                                 switch (width) {
2792                                         case 4:
2793                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
2794                                                 break;
2795                                         case 2:
2796                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
2797                                                 break;
2798                                         case 1:
2799                                                 v = buffer[i] & 0x0ff;
2800                                                 break;
2801                                 }
2802                                 new_int_array_element(interp, varname, n, v);
2803                         }
2804                         len -= count;
2805                 }
2806         }
2807
2808         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2809
2810         return JIM_OK;
2811 }
2812
2813 static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 *val)
2814 {
2815         char *namebuf;
2816         Jim_Obj *nameObjPtr, *valObjPtr;
2817         int result;
2818         long l;
2819
2820         namebuf = alloc_printf("%s(%d)", varname, idx);
2821         if (!namebuf)
2822                 return JIM_ERR;
2823
2824         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
2825         if (!nameObjPtr)
2826         {
2827                 free(namebuf);
2828                 return JIM_ERR;
2829         }
2830
2831         Jim_IncrRefCount(nameObjPtr);
2832         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
2833         Jim_DecrRefCount(interp, nameObjPtr);
2834         free(namebuf);
2835         if (valObjPtr == NULL)
2836                 return JIM_ERR;
2837
2838         result = Jim_GetLong(interp, valObjPtr, &l);
2839         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
2840         *val = l;
2841         return result;
2842 }
2843
2844 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
2845 {
2846         target_t *target;
2847         command_context_t *context;
2848         long l;
2849         u32 width;
2850         u32 len;
2851         u32 addr;
2852         u32 count;
2853         u32 v;
2854         const char *varname;
2855         u8 buffer[4096];
2856         int  i, n, e, retval;
2857
2858         /* argv[1] = name of array to get the data
2859          * argv[2] = desired width
2860          * argv[3] = memory address
2861          * argv[4] = count to write
2862          */
2863         if (argc != 5) {
2864                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
2865                 return JIM_ERR;
2866         }
2867         varname = Jim_GetString(argv[1], &len);
2868         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
2869
2870         e = Jim_GetLong(interp, argv[2], &l);
2871         width = l;
2872         if (e != JIM_OK) {
2873                 return e;
2874         }
2875
2876         e = Jim_GetLong(interp, argv[3], &l);
2877         addr = l;
2878         if (e != JIM_OK) {
2879                 return e;
2880         }
2881         e = Jim_GetLong(interp, argv[4], &l);
2882         len = l;
2883         if (e != JIM_OK) {
2884                 return e;
2885         }
2886         switch (width) {
2887                 case 8:
2888                         width = 1;
2889                         break;
2890                 case 16:
2891                         width = 2;
2892                         break;
2893                 case 32:
2894                         width = 4;
2895                         break;
2896                 default:
2897                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2898                         Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
2899                         return JIM_ERR;
2900         }
2901         if (len == 0) {
2902                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2903                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
2904                 return JIM_ERR;
2905         }
2906         if ((addr + (len * width)) < addr) {
2907                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2908                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
2909                 return JIM_ERR;
2910         }
2911         /* absurd transfer size? */
2912         if (len > 65536) {
2913                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2914                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
2915                 return JIM_ERR;
2916         }
2917
2918         if ((width == 1) ||
2919                 ((width == 2) && ((addr & 1) == 0)) ||
2920                 ((width == 4) && ((addr & 3) == 0))) {
2921                 /* all is well */
2922         } else {
2923                 char buf[100];
2924                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2925                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads", addr, width);
2926                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
2927                 return JIM_ERR;
2928         }
2929
2930         context = Jim_GetAssocData(interp, "context");
2931         if (context == NULL)
2932         {
2933                 LOG_ERROR("array2mem: no command context");
2934                 return JIM_ERR;
2935         }
2936         target = get_current_target(context);
2937         if (target == NULL)
2938         {
2939                 LOG_ERROR("array2mem: no current target");
2940                 return JIM_ERR;
2941         }
2942
2943         /* Transfer loop */
2944
2945         /* index counter */
2946         n = 0;
2947         /* assume ok */
2948         e = JIM_OK;
2949         while (len) {
2950                 /* Slurp... in buffer size chunks */
2951
2952                 count = len; /* in objects.. */
2953                 if (count > (sizeof(buffer)/width)) {
2954                         count = (sizeof(buffer)/width);
2955                 }
2956
2957                 v = 0; /* shut up gcc */
2958                 for (i = 0 ;i < count ;i++, n++) {
2959                         get_int_array_element(interp, varname, n, &v);
2960                         switch (width) {
2961                         case 4:
2962                                 target_buffer_set_u32(target, &buffer[i*width], v);
2963                                 break;
2964                         case 2:
2965                                 target_buffer_set_u16(target, &buffer[i*width], v);
2966                                 break;
2967                         case 1:
2968                                 buffer[i] = v & 0x0ff;
2969                                 break;
2970                         }
2971                 }
2972                 len -= count;
2973
2974                 retval = target->type->write_memory(target, addr, width, count, buffer);
2975                 if (retval != ERROR_OK) {
2976                         /* BOO !*/
2977                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count);
2978                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2979                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
2980                         e = JIM_ERR;
2981                         len = 0;
2982                 }
2983         }
2984
2985         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2986
2987         return JIM_OK;
2988 }