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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                      *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include "replacements.h"
  28 #include "target.h"
  29 #include "target_request.h"
  30
  31 #include "log.h"
  32 #include "configuration.h"
  33 #include "binarybuffer.h"
  34 #include "jtag.h"
  35
  36 #include <string.h>
  37 #include <stdlib.h>
  38 #include <inttypes.h>
  39
  40 #include <sys/types.h>
  41 #include <sys/stat.h>
  42 #include <unistd.h>
  43 #include <errno.h>
  44
  45 #include <sys/time.h>
  46 #include <time.h>
  47
  48 #include <time_support.h>
  49
  50 #include <fileio.h>
  51 #include <image.h>
  52
  53 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  54
  55 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57
  58 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59
  60 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  79 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  80 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
  81
  82
  83 /* targets */
  84 extern target_type_t arm7tdmi_target;
  85 extern target_type_t arm720t_target;
  86 extern target_type_t arm9tdmi_target;
  87 extern target_type_t arm920t_target;
  88 extern target_type_t arm966e_target;
  89 extern target_type_t arm926ejs_target;
  90 extern target_type_t feroceon_target;
  91 extern target_type_t xscale_target;
  92 extern target_type_t cortexm3_target;
  93 extern target_type_t arm11_target;
  94 extern target_type_t mips_m4k_target;
  95
  96 target_type_t *target_types[] =
  97 {
  98         &arm7tdmi_target,
  99         &arm9tdmi_target,
 100         &arm920t_target,
 101         &arm720t_target,
 102         &arm966e_target,
 103         &arm926ejs_target,
 104         &feroceon_target,
 105         &xscale_target,
 106         &cortexm3_target,
 107         &arm11_target,
 108         &mips_m4k_target,
 109         NULL,
 110 };
 111
 112 target_t *targets = NULL;
 113 target_event_callback_t *target_event_callbacks = NULL;
 114 target_timer_callback_t *target_timer_callbacks = NULL;
 115
 116 char *target_state_strings[] =
 117 {
 118         "unknown",
 119         "running",
 120         "halted",
 121         "reset",
 122         "debug_running",
 123 };
 124
 125 char *target_debug_reason_strings[] =
 126 {
 127         "debug request", "breakpoint", "watchpoint",
 128         "watchpoint and breakpoint", "single step",
 129         "target not halted", "undefined"
 130 };
 131
 132 char *target_endianess_strings[] =
 133 {
 134         "big endian",
 135         "little endian",
 136 };
 137
 138 static int target_continous_poll = 1;
 139
 140 /* read a u32 from a buffer in target memory endianness */
 141 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 142 {
 143         if (target->endianness == TARGET_LITTLE_ENDIAN)
 144                 return le_to_h_u32(buffer);
 145         else
 146                 return be_to_h_u32(buffer);
 147 }
 148
 149 /* read a u16 from a buffer in target memory endianness */
 150 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 151 {
 152         if (target->endianness == TARGET_LITTLE_ENDIAN)
 153                 return le_to_h_u16(buffer);
 154         else
 155                 return be_to_h_u16(buffer);
 156 }
 157
 158 /* write a u32 to a buffer in target memory endianness */
 159 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 160 {
 161         if (target->endianness == TARGET_LITTLE_ENDIAN)
 162                 h_u32_to_le(buffer, value);
 163         else
 164                 h_u32_to_be(buffer, value);
 165 }
 166
 167 /* write a u16 to a buffer in target memory endianness */
 168 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 169 {
 170         if (target->endianness == TARGET_LITTLE_ENDIAN)
 171                 h_u16_to_le(buffer, value);
 172         else
 173                 h_u16_to_be(buffer, value);
 174 }
 175
 176 /* returns a pointer to the n-th configured target */
 177 target_t* get_target_by_num(int num)
 178 {
 179         target_t *target = targets;
 180         int i = 0;
 181
 182         while (target)
 183         {
 184                 if (num == i)
 185                         return target;
 186                 target = target->next;
 187                 i++;
 188         }
 189
 190         return NULL;
 191 }
 192
 193 int get_num_by_target(target_t *query_target)
 194 {
 195         target_t *target = targets;
 196         int i = 0;
 197
 198         while (target)
 199         {
 200                 if (target == query_target)
 201                         return i;
 202                 target = target->next;
 203                 i++;
 204         }
 205
 206         return -1;
 207 }
 208
 209 target_t* get_current_target(command_context_t *cmd_ctx)
 210 {
 211         target_t *target = get_target_by_num(cmd_ctx->current_target);
 212
 213         if (target == NULL)
 214         {
 215                 LOG_ERROR("BUG: current_target out of bounds");
 216                 exit(-1);
 217         }
 218
 219         return target;
 220 }
 221
 222
 223 int target_poll(struct target_s *target)
 224 {
 225         /* We can't poll until after examine */
 226         if (!target->type->examined)
 227         {
 228                 /* Fail silently lest we pollute the log */
 229                 return ERROR_FAIL;
 230         }
 231         return target->type->poll(target);
 232 }
 233
 234 int target_halt(struct target_s *target)
 235 {
 236         /* We can't poll until after examine */
 237         if (!target->type->examined)
 238         {
 239                 LOG_ERROR("Target not examined yet");
 240                 return ERROR_FAIL;
 241         }
 242         return target->type->halt(target);
 243 }
 244
 245 int target_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 246 {
 247         int retval;
 248
 249         /* We can't poll until after examine */
 250         if (!target->type->examined)
 251         {
 252                 LOG_ERROR("Target not examined yet");
 253                 return ERROR_FAIL;
 254         }
 255
 256         /* note that resume *must* be asynchronous. The CPU can halt before we poll. The CPU can
 257          * even halt at the current PC as a result of a software breakpoint being inserted by (a bug?)
 258          * the application.
 259          */
 260         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 261                 return retval;
 262
 263         return retval;
 264 }
 265
 266 int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
 267 {
 268         int retval = ERROR_OK;
 269         target_t *target;
 270
 271         target = targets;
 272         while (target)
 273         {
 274                 target_invoke_script(cmd_ctx, target, "pre_reset");
 275                 target = target->next;
 276         }
 277
 278         if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
 279                 return retval;
 280
 281         keep_alive(); /* we might be running on a very slow JTAG clk */
 282
 283         /* First time this is executed after launching OpenOCD, it will read out
 284          * the type of CPU, etc. and init Embedded ICE registers in host
 285          * memory.
 286          *
 287          * It will also set up ICE registers in the target.
 288          *
 289          * However, if we assert TRST later, we need to set up the registers again.
 290          *
 291          * For the "reset halt/init" case we must only set up the registers here.
 292          */
 293         if ((retval = target_examine()) != ERROR_OK)
 294                 return retval;
 295
 296         keep_alive(); /* we might be running on a very slow JTAG clk */
 297
 298         target = targets;
 299         while (target)
 300         {
 301                 /* we have no idea what state the target is in, so we
 302                  * have to drop working areas
 303                  */
 304                 target_free_all_working_areas_restore(target, 0);
 305                 target->reset_halt=((reset_mode==RESET_HALT)||(reset_mode==RESET_INIT));
 306                 if ((retval = target->type->assert_reset(target))!=ERROR_OK)
 307                         return retval;
 308                 target = target->next;
 309         }
 310
 311         target = targets;
 312         while (target)
 313         {
 314                 if ((retval = target->type->deassert_reset(target))!=ERROR_OK)
 315                         return retval;
 316                 target = target->next;
 317         }
 318
 319         target = targets;
 320         while (target)
 321         {
 322                 /* We can fail to bring the target into the halted state, try after reset has been deasserted  */
 323                 if (target->reset_halt)
 324                 {
 325                         /* wait up to 1 second for halt. */
 326                         target_wait_state(target, TARGET_HALTED, 1000);
 327                         if (target->state != TARGET_HALTED)
 328                         {
 329                                 LOG_WARNING("Failed to reset target into halted mode - issuing halt");
 330                                 if ((retval = target->type->halt(target))!=ERROR_OK)
 331                                         return retval;
 332                         }
 333                 }
 334
 335                 target = target->next;
 336         }
 337
 338
 339         LOG_DEBUG("Waiting for halted stated as appropriate");
 340
 341         if ((reset_mode == RESET_HALT) || (reset_mode == RESET_INIT))
 342         {
 343                 target = targets;
 344                 while (target)
 345                 {
 346                         /* Wait for reset to complete, maximum 5 seconds. */
 347                         if (((retval=target_wait_state(target, TARGET_HALTED, 5000)))==ERROR_OK)
 348                         {
 349                                 if (reset_mode == RESET_INIT)
 350                                         target_invoke_script(cmd_ctx, target, "post_reset");
 351                         }
 352                         target = target->next;
 353                 }
 354         }
 355
 356         /* We want any events to be processed before the prompt */
 357         target_call_timer_callbacks_now();
 358
 359         return retval;
 360 }
 361
 362 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 363 {
 364         *physical = virtual;
 365         return ERROR_OK;
 366 }
 367
 368 static int default_mmu(struct target_s *target, int *enabled)
 369 {
 370         *enabled = 0;
 371         return ERROR_OK;
 372 }
 373
 374 static int default_examine(struct target_s *target)
 375 {
 376         target->type->examined = 1;
 377         return ERROR_OK;
 378 }
 379
 380
 381 /* Targets that correctly implement init+examine, i.e.
 382  * no communication with target during init:
 383  *
 384  * XScale
 385  */
 386 int target_examine(struct command_context_s *cmd_ctx)
 387 {
 388         int retval = ERROR_OK;
 389         target_t *target = targets;
 390         while (target)
 391         {
 392                 if ((retval = target->type->examine(target))!=ERROR_OK)
 393                         return retval;
 394                 target = target->next;
 395         }
 396         return retval;
 397 }
 398
 399 static int target_write_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 400 {
 401         if (!target->type->examined)
 402         {
 403                 LOG_ERROR("Target not examined yet");
 404                 return ERROR_FAIL;
 405         }
 406         return target->type->write_memory_imp(target, address, size, count, buffer);
 407 }
 408
 409 static int target_read_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
 410 {
 411         if (!target->type->examined)
 412         {
 413                 LOG_ERROR("Target not examined yet");
 414                 return ERROR_FAIL;
 415         }
 416         return target->type->read_memory_imp(target, address, size, count, buffer);
 417 }
 418
 419 static int target_soft_reset_halt_imp(struct target_s *target)
 420 {
 421         if (!target->type->examined)
 422         {
 423                 LOG_ERROR("Target not examined yet");
 424                 return ERROR_FAIL;
 425         }
 426         return target->type->soft_reset_halt_imp(target);
 427 }
 428
 429 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)
 430 {
 431         if (!target->type->examined)
 432         {
 433                 LOG_ERROR("Target not examined yet");
 434                 return ERROR_FAIL;
 435         }
 436         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);
 437 }
 438
 439 int target_init(struct command_context_s *cmd_ctx)
 440 {
 441         target_t *target = targets;
 442
 443         while (target)
 444         {
 445                 target->type->examined = 0;
 446                 if (target->type->examine == NULL)
 447                 {
 448                         target->type->examine = default_examine;
 449                 }
 450
 451                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 452                 {
 453                         LOG_ERROR("target '%s' init failed", target->type->name);
 454                         exit(-1);
 455                 }
 456
 457                 /* Set up default functions if none are provided by target */
 458                 if (target->type->virt2phys == NULL)
 459                 {
 460                         target->type->virt2phys = default_virt2phys;
 461                 }
 462                 target->type->virt2phys = default_virt2phys;
 463                 /* a non-invasive way(in terms of patches) to add some code that
 464                  * runs before the type->write/read_memory implementation
 465                  */
 466                 target->type->write_memory_imp = target->type->write_memory;
 467                 target->type->write_memory = target_write_memory_imp;
 468                 target->type->read_memory_imp = target->type->read_memory;
 469                 target->type->read_memory = target_read_memory_imp;
 470                 target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
 471                 target->type->soft_reset_halt = target_soft_reset_halt_imp;
 472                 target->type->run_algorithm_imp = target->type->run_algorithm;
 473                 target->type->run_algorithm = target_run_algorithm_imp;
 474
 475
 476                 if (target->type->mmu == NULL)
 477                 {
 478                         target->type->mmu = default_mmu;
 479                 }
 480                 target = target->next;
 481         }
 482
 483         if (targets)
 484         {
 485                 target_register_user_commands(cmd_ctx);
 486                 target_register_timer_callback(handle_target, 100, 1, NULL);
 487         }
 488
 489         return ERROR_OK;
 490 }
 491
 492 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 493 {
 494         target_event_callback_t **callbacks_p = &target_event_callbacks;
 495
 496         if (callback == NULL)
 497         {
 498                 return ERROR_INVALID_ARGUMENTS;
 499         }
 500
 501         if (*callbacks_p)
 502         {
 503                 while ((*callbacks_p)->next)
 504                         callbacks_p = &((*callbacks_p)->next);
 505                 callbacks_p = &((*callbacks_p)->next);
 506         }
 507
 508         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 509         (*callbacks_p)->callback = callback;
 510         (*callbacks_p)->priv = priv;
 511         (*callbacks_p)->next = NULL;
 512
 513         return ERROR_OK;
 514 }
 515
 516 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 517 {
 518         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 519         struct timeval now;
 520
 521         if (callback == NULL)
 522         {
 523                 return ERROR_INVALID_ARGUMENTS;
 524         }
 525
 526         if (*callbacks_p)
 527         {
 528                 while ((*callbacks_p)->next)
 529                         callbacks_p = &((*callbacks_p)->next);
 530                 callbacks_p = &((*callbacks_p)->next);
 531         }
 532
 533         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 534         (*callbacks_p)->callback = callback;
 535         (*callbacks_p)->periodic = periodic;
 536         (*callbacks_p)->time_ms = time_ms;
 537
 538         gettimeofday(&now, NULL);
 539         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 540         time_ms -= (time_ms % 1000);
 541         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 542         if ((*callbacks_p)->when.tv_usec > 1000000)
 543         {
 544                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 545                 (*callbacks_p)->when.tv_sec += 1;
 546         }
 547
 548         (*callbacks_p)->priv = priv;
 549         (*callbacks_p)->next = NULL;
 550
 551         return ERROR_OK;
 552 }
 553
 554 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 555 {
 556         target_event_callback_t **p = &target_event_callbacks;
 557         target_event_callback_t *c = target_event_callbacks;
 558
 559         if (callback == NULL)
 560         {
 561                 return ERROR_INVALID_ARGUMENTS;
 562         }
 563
 564         while (c)
 565         {
 566                 target_event_callback_t *next = c->next;
 567                 if ((c->callback == callback) && (c->priv == priv))
 568                 {
 569                         *p = next;
 570                         free(c);
 571                         return ERROR_OK;
 572                 }
 573                 else
 574                         p = &(c->next);
 575                 c = next;
 576         }
 577
 578         return ERROR_OK;
 579 }
 580
 581 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 582 {
 583         target_timer_callback_t **p = &target_timer_callbacks;
 584         target_timer_callback_t *c = target_timer_callbacks;
 585
 586         if (callback == NULL)
 587         {
 588                 return ERROR_INVALID_ARGUMENTS;
 589         }
 590
 591         while (c)
 592         {
 593                 target_timer_callback_t *next = c->next;
 594                 if ((c->callback == callback) && (c->priv == priv))
 595                 {
 596                         *p = next;
 597                         free(c);
 598                         return ERROR_OK;
 599                 }
 600                 else
 601                         p = &(c->next);
 602                 c = next;
 603         }
 604
 605         return ERROR_OK;
 606 }
 607
 608 int target_call_event_callbacks(target_t *target, enum target_event event)
 609 {
 610         target_event_callback_t *callback = target_event_callbacks;
 611         target_event_callback_t *next_callback;
 612
 613         LOG_DEBUG("target event %i", event);
 614
 615         while (callback)
 616         {
 617                 next_callback = callback->next;
 618                 callback->callback(target, event, callback->priv);
 619                 callback = next_callback;
 620         }
 621
 622         return ERROR_OK;
 623 }
 624
 625 static int target_call_timer_callbacks_check_time(int checktime)
 626 {
 627         target_timer_callback_t *callback = target_timer_callbacks;
 628         target_timer_callback_t *next_callback;
 629         struct timeval now;
 630
 631         keep_alive();
 632
 633         gettimeofday(&now, NULL);
 634
 635         while (callback)
 636         {
 637                 next_callback = callback->next;
 638
 639                 if ((!checktime&&callback->periodic)||
 640                                 (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 641                                                 || (now.tv_sec > callback->when.tv_sec)))
 642                 {
 643                         if(callback->callback != NULL)
 644                         {
 645                                 callback->callback(callback->priv);
 646                                 if (callback->periodic)
 647                                 {
 648                                         int time_ms = callback->time_ms;
 649                                         callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 650                                         time_ms -= (time_ms % 1000);
 651                                         callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 652                                         if (callback->when.tv_usec > 1000000)
 653                                         {
 654                                                 callback->when.tv_usec = callback->when.tv_usec - 1000000;
 655                                                 callback->when.tv_sec += 1;
 656                                         }
 657                                 }
 658                                 else
 659                                         target_unregister_timer_callback(callback->callback, callback->priv);
 660                         }
 661                 }
 662
 663                 callback = next_callback;
 664         }
 665
 666         return ERROR_OK;
 667 }
 668
 669 int target_call_timer_callbacks(void)
 670 {
 671         return target_call_timer_callbacks_check_time(1);
 672 }
 673
 674 /* invoke periodic callbacks immediately */
 675 int target_call_timer_callbacks_now(void)
 676 {
 677         return target_call_timer_callbacks();
 678 }
 679
 680 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 681 {
 682         working_area_t *c = target->working_areas;
 683         working_area_t *new_wa = NULL;
 684
 685         /* Reevaluate working area address based on MMU state*/
 686         if (target->working_areas == NULL)
 687         {
 688                 int retval;
 689                 int enabled;
 690                 retval = target->type->mmu(target, &enabled);
 691                 if (retval != ERROR_OK)
 692                 {
 693                         return retval;
 694                 }
 695                 if (enabled)
 696                 {
 697                         target->working_area = target->working_area_virt;
 698                 }
 699                 else
 700                 {
 701                         target->working_area = target->working_area_phys;
 702                 }
 703         }
 704
 705         /* only allocate multiples of 4 byte */
 706         if (size % 4)
 707         {
 708                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 709                 size = CEIL(size, 4);
 710         }
 711
 712         /* see if there's already a matching working area */
 713         while (c)
 714         {
 715                 if ((c->free) && (c->size == size))
 716                 {
 717                         new_wa = c;
 718                         break;
 719                 }
 720                 c = c->next;
 721         }
 722
 723         /* if not, allocate a new one */
 724         if (!new_wa)
 725         {
 726                 working_area_t **p = &target->working_areas;
 727                 u32 first_free = target->working_area;
 728                 u32 free_size = target->working_area_size;
 729
 730                 LOG_DEBUG("allocating new working area");
 731
 732                 c = target->working_areas;
 733                 while (c)
 734                 {
 735                         first_free += c->size;
 736                         free_size -= c->size;
 737                         p = &c->next;
 738                         c = c->next;
 739                 }
 740
 741                 if (free_size < size)
 742                 {
 743                         LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 744                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 745                 }
 746
 747                 new_wa = malloc(sizeof(working_area_t));
 748                 new_wa->next = NULL;
 749                 new_wa->size = size;
 750                 new_wa->address = first_free;
 751
 752                 if (target->backup_working_area)
 753                 {
 754                         new_wa->backup = malloc(new_wa->size);
 755                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 756                 }
 757                 else
 758                 {
 759                         new_wa->backup = NULL;
 760                 }
 761
 762                 /* put new entry in list */
 763                 *p = new_wa;
 764         }
 765
 766         /* mark as used, and return the new (reused) area */
 767         new_wa->free = 0;
 768         *area = new_wa;
 769
 770         /* user pointer */
 771         new_wa->user = area;
 772
 773         return ERROR_OK;
 774 }
 775
 776 int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
 777 {
 778         if (area->free)
 779                 return ERROR_OK;
 780
 781         if (restore&&target->backup_working_area)
 782                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 783
 784         area->free = 1;
 785
 786         /* mark user pointer invalid */
 787         *area->user = NULL;
 788         area->user = NULL;
 789
 790         return ERROR_OK;
 791 }
 792
 793 int target_free_working_area(struct target_s *target, working_area_t *area)
 794 {
 795         return target_free_working_area_restore(target, area, 1);
 796 }
 797
 798 int target_free_all_working_areas_restore(struct target_s *target, int restore)
 799 {
 800         working_area_t *c = target->working_areas;
 801
 802         while (c)
 803         {
 804                 working_area_t *next = c->next;
 805                 target_free_working_area_restore(target, c, restore);
 806
 807                 if (c->backup)
 808                         free(c->backup);
 809
 810                 free(c);
 811
 812                 c = next;
 813         }
 814
 815         target->working_areas = NULL;
 816
 817         return ERROR_OK;
 818 }
 819
 820 int target_free_all_working_areas(struct target_s *target)
 821 {
 822         return target_free_all_working_areas_restore(target, 1);
 823 }
 824
 825 int target_register_commands(struct command_context_s *cmd_ctx)
 826 {
 827         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
 828         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 829         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 830         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 831         register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
 832
 833
 834         /* script procedures */
 835         register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing");
 836         register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values");
 837         return ERROR_OK;
 838 }
 839
 840 int target_arch_state(struct target_s *target)
 841 {
 842         int retval;
 843         if (target==NULL)
 844         {
 845                 LOG_USER("No target has been configured");
 846                 return ERROR_OK;
 847         }
 848
 849         LOG_USER("target state: %s", target_state_strings[target->state]);
 850
 851         if (target->state!=TARGET_HALTED)
 852                 return ERROR_OK;
 853
 854         retval=target->type->arch_state(target);
 855         return retval;
 856 }
 857
 858 /* Single aligned words are guaranteed to use 16 or 32 bit access
 859  * mode respectively, otherwise data is handled as quickly as
 860  * possible
 861  */
 862 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 863 {
 864         int retval;
 865         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 866
 867         if (!target->type->examined)
 868         {
 869                 LOG_ERROR("Target not examined yet");
 870                 return ERROR_FAIL;
 871         }
 872
 873         if (address+size<address)
 874         {
 875                 /* GDB can request this when e.g. PC is 0xfffffffc*/
 876                 LOG_ERROR("address+size wrapped(0x%08x, 0x%08x)", address, size);
 877                 return ERROR_FAIL;
 878         }
 879
 880         if (((address % 2) == 0) && (size == 2))
 881         {
 882                 return target->type->write_memory(target, address, 2, 1, buffer);
 883         }
 884
 885         /* handle unaligned head bytes */
 886         if (address % 4)
 887         {
 888                 int unaligned = 4 - (address % 4);
 889
 890                 if (unaligned > size)
 891                         unaligned = size;
 892
 893                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 894                         return retval;
 895
 896                 buffer += unaligned;
 897                 address += unaligned;
 898                 size -= unaligned;
 899         }
 900
 901         /* handle aligned words */
 902         if (size >= 4)
 903         {
 904                 int aligned = size - (size % 4);
 905
 906                 /* use bulk writes above a certain limit. This may have to be changed */
 907                 if (aligned > 128)
 908                 {
 909                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 910                                 return retval;
 911                 }
 912                 else
 913                 {
 914                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 915                                 return retval;
 916                 }
 917
 918                 buffer += aligned;
 919                 address += aligned;
 920                 size -= aligned;
 921         }
 922
 923         /* handle tail writes of less than 4 bytes */
 924         if (size > 0)
 925         {
 926                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 927                         return retval;
 928         }
 929
 930         return ERROR_OK;
 931 }
 932
 933
 934 /* Single aligned words are guaranteed to use 16 or 32 bit access
 935  * mode respectively, otherwise data is handled as quickly as
 936  * possible
 937  */
 938 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 939 {
 940         int retval;
 941         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 942
 943         if (!target->type->examined)
 944         {
 945                 LOG_ERROR("Target not examined yet");
 946                 return ERROR_FAIL;
 947         }
 948
 949         if (address+size<address)
 950         {
 951                 /* GDB can request this when e.g. PC is 0xfffffffc*/
 952                 LOG_ERROR("address+size wrapped(0x%08x, 0x%08x)", address, size);
 953                 return ERROR_FAIL;
 954         }
 955
 956         if (((address % 2) == 0) && (size == 2))
 957         {
 958                 return target->type->read_memory(target, address, 2, 1, buffer);
 959         }
 960
 961         /* handle unaligned head bytes */
 962         if (address % 4)
 963         {
 964                 int unaligned = 4 - (address % 4);
 965
 966                 if (unaligned > size)
 967                         unaligned = size;
 968
 969                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 970                         return retval;
 971
 972                 buffer += unaligned;
 973                 address += unaligned;
 974                 size -= unaligned;
 975         }
 976
 977         /* handle aligned words */
 978         if (size >= 4)
 979         {
 980                 int aligned = size - (size % 4);
 981
 982                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 983                         return retval;
 984
 985                 buffer += aligned;
 986                 address += aligned;
 987                 size -= aligned;
 988         }
 989
 990         /* handle tail writes of less than 4 bytes */
 991         if (size > 0)
 992         {
 993                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 994                         return retval;
 995         }
 996
 997         return ERROR_OK;
 998 }
 999
1000 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
1001 {
1002         u8 *buffer;
1003         int retval;
1004         int i;
1005         u32 checksum = 0;
1006         if (!target->type->examined)
1007         {
1008                 LOG_ERROR("Target not examined yet");
1009                 return ERROR_FAIL;
1010         }
1011
1012         if ((retval = target->type->checksum_memory(target, address,
1013                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1014         {
1015                 buffer = malloc(size);
1016                 if (buffer == NULL)
1017                 {
1018                         LOG_ERROR("error allocating buffer for section (%d bytes)", size);
1019                         return ERROR_INVALID_ARGUMENTS;
1020                 }
1021                 retval = target_read_buffer(target, address, size, buffer);
1022                 if (retval != ERROR_OK)
1023                 {
1024                         free(buffer);
1025                         return retval;
1026                 }
1027
1028                 /* convert to target endianess */
1029                 for (i = 0; i < (size/sizeof(u32)); i++)
1030                 {
1031                         u32 target_data;
1032                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
1033                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
1034                 }
1035
1036                 retval = image_calculate_checksum( buffer, size, &checksum );
1037                 free(buffer);
1038         }
1039
1040         *crc = checksum;
1041
1042         return retval;
1043 }
1044
1045 int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank)
1046 {
1047         int retval;
1048         if (!target->type->examined)
1049         {
1050                 LOG_ERROR("Target not examined yet");
1051                 return ERROR_FAIL;
1052         }
1053
1054         if (target->type->blank_check_memory == 0)
1055                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1056
1057         retval = target->type->blank_check_memory(target, address, size, blank);
1058
1059         return retval;
1060 }
1061
1062 int target_read_u32(struct target_s *target, u32 address, u32 *value)
1063 {
1064         u8 value_buf[4];
1065         if (!target->type->examined)
1066         {
1067                 LOG_ERROR("Target not examined yet");
1068                 return ERROR_FAIL;
1069         }
1070
1071         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
1072
1073         if (retval == ERROR_OK)
1074         {
1075                 *value = target_buffer_get_u32(target, value_buf);
1076                 LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1077         }
1078         else
1079         {
1080                 *value = 0x0;
1081                 LOG_DEBUG("address: 0x%8.8x failed", address);
1082         }
1083
1084         return retval;
1085 }
1086
1087 int target_read_u16(struct target_s *target, u32 address, u16 *value)
1088 {
1089         u8 value_buf[2];
1090         if (!target->type->examined)
1091         {
1092                 LOG_ERROR("Target not examined yet");
1093                 return ERROR_FAIL;
1094         }
1095
1096         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
1097
1098         if (retval == ERROR_OK)
1099         {
1100                 *value = target_buffer_get_u16(target, value_buf);
1101                 LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1102         }
1103         else
1104         {
1105                 *value = 0x0;
1106                 LOG_DEBUG("address: 0x%8.8x failed", address);
1107         }
1108
1109         return retval;
1110 }
1111
1112 int target_read_u8(struct target_s *target, u32 address, u8 *value)
1113 {
1114         int retval = target->type->read_memory(target, address, 1, 1, value);
1115         if (!target->type->examined)
1116         {
1117                 LOG_ERROR("Target not examined yet");
1118                 return ERROR_FAIL;
1119         }
1120
1121         if (retval == ERROR_OK)
1122         {
1123                 LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1124         }
1125         else
1126         {
1127                 *value = 0x0;
1128                 LOG_DEBUG("address: 0x%8.8x failed", address);
1129         }
1130
1131         return retval;
1132 }
1133
1134 int target_write_u32(struct target_s *target, u32 address, u32 value)
1135 {
1136         int retval;
1137         u8 value_buf[4];
1138         if (!target->type->examined)
1139         {
1140                 LOG_ERROR("Target not examined yet");
1141                 return ERROR_FAIL;
1142         }
1143
1144         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1145
1146         target_buffer_set_u32(target, value_buf, value);
1147         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1148         {
1149                 LOG_DEBUG("failed: %i", retval);
1150         }
1151
1152         return retval;
1153 }
1154
1155 int target_write_u16(struct target_s *target, u32 address, u16 value)
1156 {
1157         int retval;
1158         u8 value_buf[2];
1159         if (!target->type->examined)
1160         {
1161                 LOG_ERROR("Target not examined yet");
1162                 return ERROR_FAIL;
1163         }
1164
1165         LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1166
1167         target_buffer_set_u16(target, value_buf, value);
1168         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1169         {
1170                 LOG_DEBUG("failed: %i", retval);
1171         }
1172
1173         return retval;
1174 }
1175
1176 int target_write_u8(struct target_s *target, u32 address, u8 value)
1177 {
1178         int retval;
1179         if (!target->type->examined)
1180         {
1181                 LOG_ERROR("Target not examined yet");
1182                 return ERROR_FAIL;
1183         }
1184
1185         LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1186
1187         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1188         {
1189                 LOG_DEBUG("failed: %i", retval);
1190         }
1191
1192         return retval;
1193 }
1194
1195 int target_register_user_commands(struct command_context_s *cmd_ctx)
1196 {
1197         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1198         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1199         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1200         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1201         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1202         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1203         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init]");
1204         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1205
1206         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1207         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1208         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1209
1210         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
1211         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
1212         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1213
1214         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1215         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1216         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1217         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1218
1219         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
1220         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1221         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1222
1223         target_request_register_commands(cmd_ctx);
1224         trace_register_commands(cmd_ctx);
1225
1226         return ERROR_OK;
1227 }
1228
1229 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1230 {
1231         target_t *target = targets;
1232         int count = 0;
1233
1234         if (argc == 1)
1235         {
1236                 int num = strtoul(args[0], NULL, 0);
1237
1238                 while (target)
1239                 {
1240                         count++;
1241                         target = target->next;
1242                 }
1243
1244                 if (num < count)
1245                         cmd_ctx->current_target = num;
1246                 else
1247                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1248
1249                 return ERROR_OK;
1250         }
1251
1252         while (target)
1253         {
1254                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1255                 target = target->next;
1256         }
1257
1258         return ERROR_OK;
1259 }
1260
1261 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1262 {
1263         int i;
1264         int found = 0;
1265
1266         if (argc < 3)
1267         {
1268                 return ERROR_COMMAND_SYNTAX_ERROR;
1269         }
1270
1271         /* search for the specified target */
1272         if (args[0] && (args[0][0] != 0))
1273         {
1274                 for (i = 0; target_types[i]; i++)
1275                 {
1276                         if (strcmp(args[0], target_types[i]->name) == 0)
1277                         {
1278                                 target_t **last_target_p = &targets;
1279
1280                                 /* register target specific commands */
1281                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1282                                 {
1283                                         LOG_ERROR("couldn't register '%s' commands", args[0]);
1284                                         exit(-1);
1285                                 }
1286
1287                                 if (*last_target_p)
1288                                 {
1289                                         while ((*last_target_p)->next)
1290                                                 last_target_p = &((*last_target_p)->next);
1291                                         last_target_p = &((*last_target_p)->next);
1292                                 }
1293
1294                                 *last_target_p = malloc(sizeof(target_t));
1295
1296                                 /* allocate memory for each unique target type */
1297                                 (*last_target_p)->type = (target_type_t*)malloc(sizeof(target_type_t));
1298                                 *((*last_target_p)->type) = *target_types[i];
1299
1300                                 if (strcmp(args[1], "big") == 0)
1301                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1302                                 else if (strcmp(args[1], "little") == 0)
1303                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1304                                 else
1305                                 {
1306                                         LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1307                                         return ERROR_COMMAND_SYNTAX_ERROR;
1308                                 }
1309
1310                                 if (strcmp(args[2], "reset_halt") == 0)
1311                                 {
1312                                         LOG_WARNING("reset_mode argument is obsolete.");
1313                                         return ERROR_COMMAND_SYNTAX_ERROR;
1314                                 }
1315                                 else if (strcmp(args[2], "reset_run") == 0)
1316                                 {
1317                                         LOG_WARNING("reset_mode argument is obsolete.");
1318                                         return ERROR_COMMAND_SYNTAX_ERROR;
1319                                 }
1320                                 else if (strcmp(args[2], "reset_init") == 0)
1321                                 {
1322                                         LOG_WARNING("reset_mode argument is obsolete.");
1323                                         return ERROR_COMMAND_SYNTAX_ERROR;
1324                                 }
1325                                 else if (strcmp(args[2], "run_and_halt") == 0)
1326                                 {
1327                                         LOG_WARNING("reset_mode argument is obsolete.");
1328                                         return ERROR_COMMAND_SYNTAX_ERROR;
1329                                 }
1330                                 else if (strcmp(args[2], "run_and_init") == 0)
1331                                 {
1332                                         LOG_WARNING("reset_mode argument is obsolete.");
1333                                         return ERROR_COMMAND_SYNTAX_ERROR;
1334                                 }
1335                                 else
1336                                 {
1337                                         /* Kludge! we want to make this reset arg optional while remaining compatible! */
1338                                         args--;
1339                                         argc++;
1340                                 }
1341
1342                                 (*last_target_p)->working_area = 0x0;
1343                                 (*last_target_p)->working_area_size = 0x0;
1344                                 (*last_target_p)->working_areas = NULL;
1345                                 (*last_target_p)->backup_working_area = 0;
1346
1347                                 (*last_target_p)->state = TARGET_UNKNOWN;
1348                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1349                                 (*last_target_p)->reg_cache = NULL;
1350                                 (*last_target_p)->breakpoints = NULL;
1351                                 (*last_target_p)->watchpoints = NULL;
1352                                 (*last_target_p)->next = NULL;
1353                                 (*last_target_p)->arch_info = NULL;
1354
1355                                 /* initialize trace information */
1356                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1357                                 (*last_target_p)->trace_info->num_trace_points = 0;
1358                                 (*last_target_p)->trace_info->trace_points_size = 0;
1359                                 (*last_target_p)->trace_info->trace_points = NULL;
1360                                 (*last_target_p)->trace_info->trace_history_size = 0;
1361                                 (*last_target_p)->trace_info->trace_history = NULL;
1362                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1363                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1364
1365                                 (*last_target_p)->dbgmsg = NULL;
1366                                 (*last_target_p)->dbg_msg_enabled = 0;
1367
1368                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1369
1370                                 found = 1;
1371                                 break;
1372                         }
1373                 }
1374         }
1375
1376         /* no matching target found */
1377         if (!found)
1378         {
1379                 LOG_ERROR("target '%s' not found", args[0]);
1380                 return ERROR_COMMAND_SYNTAX_ERROR;
1381         }
1382
1383         return ERROR_OK;
1384 }
1385
1386 int target_invoke_script(struct command_context_s *cmd_ctx, target_t *target, char *name)
1387 {
1388         return command_run_linef(cmd_ctx, " if {[catch {info body target_%d_%s} t]==0} {target_%d_%s}",
1389                         get_num_by_target(target), name,
1390                         get_num_by_target(target), name);
1391 }
1392
1393 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1394 {
1395         target_t *target = NULL;
1396
1397         if ((argc < 4) || (argc > 5))
1398         {
1399                 return ERROR_COMMAND_SYNTAX_ERROR;
1400         }
1401
1402         target = get_target_by_num(strtoul(args[0], NULL, 0));
1403         if (!target)
1404         {
1405                 return ERROR_COMMAND_SYNTAX_ERROR;
1406         }
1407         target_free_all_working_areas(target);
1408
1409         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1410         if (argc == 5)
1411         {
1412                 target->working_area_virt = strtoul(args[4], NULL, 0);
1413         }
1414         target->working_area_size = strtoul(args[2], NULL, 0);
1415
1416         if (strcmp(args[3], "backup") == 0)
1417         {
1418                 target->backup_working_area = 1;
1419         }
1420         else if (strcmp(args[3], "nobackup") == 0)
1421         {
1422                 target->backup_working_area = 0;
1423         }
1424         else
1425         {
1426                 LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1427                 return ERROR_COMMAND_SYNTAX_ERROR;
1428         }
1429
1430         return ERROR_OK;
1431 }
1432
1433
1434 /* process target state changes */
1435 int handle_target(void *priv)
1436 {
1437         target_t *target = targets;
1438
1439         while (target)
1440         {
1441                 if (target_continous_poll)
1442                 {
1443                         /* polling may fail silently until the target has been examined */
1444                         target_poll(target);
1445                 }
1446
1447                 target = target->next;
1448         }
1449
1450         return ERROR_OK;
1451 }
1452
1453 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1454 {
1455         target_t *target;
1456         reg_t *reg = NULL;
1457         int count = 0;
1458         char *value;
1459
1460         LOG_DEBUG("-");
1461
1462         target = get_current_target(cmd_ctx);
1463
1464         /* list all available registers for the current target */
1465         if (argc == 0)
1466         {
1467                 reg_cache_t *cache = target->reg_cache;
1468
1469                 count = 0;
1470                 while(cache)
1471                 {
1472                         int i;
1473                         for (i = 0; i < cache->num_regs; i++)
1474                         {
1475                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1476                                 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);
1477                                 free(value);
1478                         }
1479                         cache = cache->next;
1480                 }
1481
1482                 return ERROR_OK;
1483         }
1484
1485         /* access a single register by its ordinal number */
1486         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1487         {
1488                 int num = strtoul(args[0], NULL, 0);
1489                 reg_cache_t *cache = target->reg_cache;
1490
1491                 count = 0;
1492                 while(cache)
1493                 {
1494                         int i;
1495                         for (i = 0; i < cache->num_regs; i++)
1496                         {
1497                                 if (count++ == num)
1498                                 {
1499                                         reg = &cache->reg_list[i];
1500                                         break;
1501                                 }
1502                         }
1503                         if (reg)
1504                                 break;
1505                         cache = cache->next;
1506                 }
1507
1508                 if (!reg)
1509                 {
1510                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1511                         return ERROR_OK;
1512                 }
1513         } else /* access a single register by its name */
1514         {
1515                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1516
1517                 if (!reg)
1518                 {
1519                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1520                         return ERROR_OK;
1521                 }
1522         }
1523
1524         /* display a register */
1525         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1526         {
1527                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1528                         reg->valid = 0;
1529
1530                 if (reg->valid == 0)
1531                 {
1532                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1533                         if (arch_type == NULL)
1534                         {
1535                                 LOG_ERROR("BUG: encountered unregistered arch type");
1536                                 return ERROR_OK;
1537                         }
1538                         arch_type->get(reg);
1539                 }
1540                 value = buf_to_str(reg->value, reg->size, 16);
1541                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1542                 free(value);
1543                 return ERROR_OK;
1544         }
1545
1546         /* set register value */
1547         if (argc == 2)
1548         {
1549                 u8 *buf = malloc(CEIL(reg->size, 8));
1550                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1551
1552                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1553                 if (arch_type == NULL)
1554                 {
1555                         LOG_ERROR("BUG: encountered unregistered arch type");
1556                         return ERROR_OK;
1557                 }
1558
1559                 arch_type->set(reg, buf);
1560
1561                 value = buf_to_str(reg->value, reg->size, 16);
1562                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1563                 free(value);
1564
1565                 free(buf);
1566
1567                 return ERROR_OK;
1568         }
1569
1570         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1571
1572         return ERROR_OK;
1573 }
1574
1575
1576 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1577 {
1578         target_t *target = get_current_target(cmd_ctx);
1579
1580         if (argc == 0)
1581         {
1582                 target_poll(target);
1583                 target_arch_state(target);
1584         }
1585         else
1586         {
1587                 if (strcmp(args[0], "on") == 0)
1588                 {
1589                         target_continous_poll = 1;
1590                 }
1591                 else if (strcmp(args[0], "off") == 0)
1592                 {
1593                         target_continous_poll = 0;
1594                 }
1595                 else
1596                 {
1597                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1598                 }
1599         }
1600
1601
1602         return ERROR_OK;
1603 }
1604
1605 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1606 {
1607         int ms = 5000;
1608
1609         if (argc > 0)
1610         {
1611                 char *end;
1612
1613                 ms = strtoul(args[0], &end, 0) * 1000;
1614                 if (*end)
1615                 {
1616                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1617                         return ERROR_OK;
1618                 }
1619         }
1620         target_t *target = get_current_target(cmd_ctx);
1621
1622         return target_wait_state(target, TARGET_HALTED, ms);
1623 }
1624
1625 int target_wait_state(target_t *target, enum target_state state, int ms)
1626 {
1627         int retval;
1628         struct timeval timeout, now;
1629         int once=1;
1630         gettimeofday(&timeout, NULL);
1631         timeval_add_time(&timeout, 0, ms * 1000);
1632
1633         for (;;)
1634         {
1635                 if ((retval=target_poll(target))!=ERROR_OK)
1636                         return retval;
1637                 target_call_timer_callbacks_now();
1638                 if (target->state == state)
1639                 {
1640                         break;
1641                 }
1642                 if (once)
1643                 {
1644                         once=0;
1645                         LOG_USER("waiting for target %s...", target_state_strings[state]);
1646                 }
1647
1648                 gettimeofday(&now, NULL);
1649                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1650                 {
1651                         LOG_ERROR("timed out while waiting for target %s", target_state_strings[state]);
1652                         return ERROR_FAIL;
1653                 }
1654         }
1655
1656         return ERROR_OK;
1657 }
1658
1659 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1660 {
1661         int retval;
1662         target_t *target = get_current_target(cmd_ctx);
1663
1664         LOG_DEBUG("-");
1665
1666         if ((retval = target_halt(target)) != ERROR_OK)
1667         {
1668                 return retval;
1669         }
1670
1671         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1672 }
1673
1674 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1675 {
1676         target_t *target = get_current_target(cmd_ctx);
1677
1678         LOG_USER("requesting target halt and executing a soft reset");
1679
1680         target->type->soft_reset_halt(target);
1681
1682         return ERROR_OK;
1683 }
1684
1685 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1686 {
1687         enum target_reset_mode reset_mode = RESET_RUN;
1688
1689         if (argc >= 1)
1690         {
1691                 if (strcmp("run", args[0]) == 0)
1692                         reset_mode = RESET_RUN;
1693                 else if (strcmp("halt", args[0]) == 0)
1694                         reset_mode = RESET_HALT;
1695                 else if (strcmp("init", args[0]) == 0)
1696                         reset_mode = RESET_INIT;
1697                 else
1698                 {
1699                         return ERROR_COMMAND_SYNTAX_ERROR;
1700                 }
1701         }
1702
1703         /* reset *all* targets */
1704         target_process_reset(cmd_ctx, reset_mode);
1705
1706         return ERROR_OK;
1707 }
1708
1709 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1710 {
1711         int retval;
1712         target_t *target = get_current_target(cmd_ctx);
1713
1714         target_invoke_script(cmd_ctx, target, "pre_resume");
1715
1716         if (argc == 0)
1717                 retval = target_resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1718         else if (argc == 1)
1719                 retval = target_resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1720         else
1721         {
1722                 return ERROR_COMMAND_SYNTAX_ERROR;
1723         }
1724
1725         return retval;
1726 }
1727
1728 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1729 {
1730         target_t *target = get_current_target(cmd_ctx);
1731
1732         LOG_DEBUG("-");
1733
1734         if (argc == 0)
1735                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1736
1737         if (argc == 1)
1738                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1739
1740         return ERROR_OK;
1741 }
1742
1743 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1744 {
1745         const int line_bytecnt = 32;
1746         int count = 1;
1747         int size = 4;
1748         u32 address = 0;
1749         int line_modulo;
1750         int i;
1751
1752         char output[128];
1753         int output_len;
1754
1755         int retval;
1756
1757         u8 *buffer;
1758         target_t *target = get_current_target(cmd_ctx);
1759
1760         if (argc < 1)
1761                 return ERROR_OK;
1762
1763         if (argc == 2)
1764                 count = strtoul(args[1], NULL, 0);
1765
1766         address = strtoul(args[0], NULL, 0);
1767
1768
1769         switch (cmd[2])
1770         {
1771                 case 'w':
1772                         size = 4; line_modulo = line_bytecnt / 4;
1773                         break;
1774                 case 'h':
1775                         size = 2; line_modulo = line_bytecnt / 2;
1776                         break;
1777                 case 'b':
1778                         size = 1; line_modulo = line_bytecnt / 1;
1779                         break;
1780                 default:
1781                         return ERROR_OK;
1782         }
1783
1784         buffer = calloc(count, size);
1785         retval  = target->type->read_memory(target, address, size, count, buffer);
1786         if (retval == ERROR_OK)
1787         {
1788                 output_len = 0;
1789
1790                 for (i = 0; i < count; i++)
1791                 {
1792                         if (i%line_modulo == 0)
1793                                 output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1794
1795                         switch (size)
1796                         {
1797                                 case 4:
1798                                         output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1799                                         break;
1800                                 case 2:
1801                                         output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1802                                         break;
1803                                 case 1:
1804                                         output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1805                                         break;
1806                         }
1807
1808                         if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1809                         {
1810                                 command_print(cmd_ctx, output);
1811                                 output_len = 0;
1812                         }
1813                 }
1814         }
1815
1816         free(buffer);
1817
1818         return retval;
1819 }
1820
1821 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1822 {
1823         u32 address = 0;
1824         u32 value = 0;
1825         int count = 1;
1826         int i;
1827         int wordsize;
1828         target_t *target = get_current_target(cmd_ctx);
1829         u8 value_buf[4];
1830
1831          if ((argc < 2) || (argc > 3))
1832                 return ERROR_COMMAND_SYNTAX_ERROR;
1833
1834         address = strtoul(args[0], NULL, 0);
1835         value = strtoul(args[1], NULL, 0);
1836         if (argc == 3)
1837                 count = strtoul(args[2], NULL, 0);
1838
1839         switch (cmd[2])
1840         {
1841                 case 'w':
1842                         wordsize = 4;
1843                         target_buffer_set_u32(target, value_buf, value);
1844                         break;
1845                 case 'h':
1846                         wordsize = 2;
1847                         target_buffer_set_u16(target, value_buf, value);
1848                         break;
1849                 case 'b':
1850                         wordsize = 1;
1851                         value_buf[0] = value;
1852                         break;
1853                 default:
1854                         return ERROR_COMMAND_SYNTAX_ERROR;
1855         }
1856         for (i=0; i<count; i++)
1857         {
1858                 int retval;
1859                 switch (wordsize)
1860                 {
1861                         case 4:
1862                                 retval = target->type->write_memory(target, address + i*wordsize, 4, 1, value_buf);
1863                                 break;
1864                         case 2:
1865                                 retval = target->type->write_memory(target, address + i*wordsize, 2, 1, value_buf);
1866                                 break;
1867                         case 1:
1868                                 retval = target->type->write_memory(target, address + i*wordsize, 1, 1, value_buf);
1869                         break;
1870                         default:
1871                         return ERROR_OK;
1872                 }
1873                 if (retval!=ERROR_OK)
1874                 {
1875                         return retval;
1876                 }
1877         }
1878
1879         return ERROR_OK;
1880
1881 }
1882
1883 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1884 {
1885         u8 *buffer;
1886         u32 buf_cnt;
1887         u32 image_size;
1888         u32 min_address=0;
1889         u32 max_address=0xffffffff;
1890         int i;
1891         int retval;
1892
1893         image_t image;
1894
1895         duration_t duration;
1896         char *duration_text;
1897
1898         target_t *target = get_current_target(cmd_ctx);
1899
1900         if ((argc < 1)||(argc > 5))
1901         {
1902                 return ERROR_COMMAND_SYNTAX_ERROR;
1903         }
1904
1905         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1906         if (argc >= 2)
1907         {
1908                 image.base_address_set = 1;
1909                 image.base_address = strtoul(args[1], NULL, 0);
1910         }
1911         else
1912         {
1913                 image.base_address_set = 0;
1914         }
1915
1916
1917         image.start_address_set = 0;
1918
1919         if (argc>=4)
1920         {
1921                 min_address=strtoul(args[3], NULL, 0);
1922         }
1923         if (argc>=5)
1924         {
1925                 max_address=strtoul(args[4], NULL, 0)+min_address;
1926         }
1927
1928         if (min_address>max_address)
1929         {
1930                 return ERROR_COMMAND_SYNTAX_ERROR;
1931         }
1932
1933
1934         duration_start_measure(&duration);
1935
1936         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1937         {
1938                 return ERROR_OK;
1939         }
1940
1941         image_size = 0x0;
1942         retval = ERROR_OK;
1943         for (i = 0; i < image.num_sections; i++)
1944         {
1945                 buffer = malloc(image.sections[i].size);
1946                 if (buffer == NULL)
1947                 {
1948                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1949                         break;
1950                 }
1951
1952                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1953                 {
1954                         free(buffer);
1955                         break;
1956                 }
1957
1958                 u32 offset=0;
1959                 u32 length=buf_cnt;
1960
1961
1962                 /* DANGER!!! beware of unsigned comparision here!!! */
1963
1964                 if ((image.sections[i].base_address+buf_cnt>=min_address)&&
1965                                 (image.sections[i].base_address<max_address))
1966                 {
1967                         if (image.sections[i].base_address<min_address)
1968                         {
1969                                 /* clip addresses below */
1970                                 offset+=min_address-image.sections[i].base_address;
1971                                 length-=offset;
1972                         }
1973
1974                         if (image.sections[i].base_address+buf_cnt>max_address)
1975                         {
1976                                 length-=(image.sections[i].base_address+buf_cnt)-max_address;
1977                         }
1978
1979                         if ((retval = target_write_buffer(target, image.sections[i].base_address+offset, length, buffer+offset)) != ERROR_OK)
1980                         {
1981                                 free(buffer);
1982                                 break;
1983                         }
1984                         image_size += length;
1985                         command_print(cmd_ctx, "%u byte written at address 0x%8.8x", length, image.sections[i].base_address+offset);
1986                 }
1987
1988                 free(buffer);
1989         }
1990
1991         duration_stop_measure(&duration, &duration_text);
1992         if (retval==ERROR_OK)
1993         {
1994                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1995         }
1996         free(duration_text);
1997
1998         image_close(&image);
1999
2000         return retval;
2001
2002 }
2003
2004 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2005 {
2006         fileio_t fileio;
2007
2008         u32 address;
2009         u32 size;
2010         u8 buffer[560];
2011         int retval=ERROR_OK;
2012
2013         duration_t duration;
2014         char *duration_text;
2015
2016         target_t *target = get_current_target(cmd_ctx);
2017
2018         if (argc != 3)
2019         {
2020                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
2021                 return ERROR_OK;
2022         }
2023
2024         address = strtoul(args[1], NULL, 0);
2025         size = strtoul(args[2], NULL, 0);
2026
2027         if ((address & 3) || (size & 3))
2028         {
2029                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
2030                 return ERROR_OK;
2031         }
2032
2033         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
2034         {
2035                 return ERROR_OK;
2036         }
2037
2038         duration_start_measure(&duration);
2039
2040         while (size > 0)
2041         {
2042                 u32 size_written;
2043                 u32 this_run_size = (size > 560) ? 560 : size;
2044
2045                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
2046                 if (retval != ERROR_OK)
2047                 {
2048                         break;
2049                 }
2050
2051                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2052                 if (retval != ERROR_OK)
2053                 {
2054                         break;
2055                 }
2056
2057                 size -= this_run_size;
2058                 address += this_run_size;
2059         }
2060
2061         fileio_close(&fileio);
2062
2063         duration_stop_measure(&duration, &duration_text);
2064         if (retval==ERROR_OK)
2065         {
2066                 command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2067         }
2068         free(duration_text);
2069
2070         return ERROR_OK;
2071 }
2072
2073 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2074 {
2075         u8 *buffer;
2076         u32 buf_cnt;
2077         u32 image_size;
2078         int i;
2079         int retval;
2080         u32 checksum = 0;
2081         u32 mem_checksum = 0;
2082
2083         image_t image;
2084
2085         duration_t duration;
2086         char *duration_text;
2087
2088         target_t *target = get_current_target(cmd_ctx);
2089
2090         if (argc < 1)
2091         {
2092                 return ERROR_COMMAND_SYNTAX_ERROR;
2093         }
2094
2095         if (!target)
2096         {
2097                 LOG_ERROR("no target selected");
2098                 return ERROR_FAIL;
2099         }
2100
2101         duration_start_measure(&duration);
2102
2103         if (argc >= 2)
2104         {
2105                 image.base_address_set = 1;
2106                 image.base_address = strtoul(args[1], NULL, 0);
2107         }
2108         else
2109         {
2110                 image.base_address_set = 0;
2111                 image.base_address = 0x0;
2112         }
2113
2114         image.start_address_set = 0;
2115
2116         if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
2117         {
2118                 return retval;
2119         }
2120
2121         image_size = 0x0;
2122         retval=ERROR_OK;
2123         for (i = 0; i < image.num_sections; i++)
2124         {
2125                 buffer = malloc(image.sections[i].size);
2126                 if (buffer == NULL)
2127                 {
2128                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2129                         break;
2130                 }
2131                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2132                 {
2133                         free(buffer);
2134                         break;
2135                 }
2136
2137                 /* calculate checksum of image */
2138                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2139
2140                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2141                 if( retval != ERROR_OK )
2142                 {
2143                         free(buffer);
2144                         break;
2145                 }
2146
2147                 if( checksum != mem_checksum )
2148                 {
2149                         /* failed crc checksum, fall back to a binary compare */
2150                         u8 *data;
2151
2152                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2153
2154                         data = (u8*)malloc(buf_cnt);
2155
2156                         /* Can we use 32bit word accesses? */
2157                         int size = 1;
2158                         int count = buf_cnt;
2159                         if ((count % 4) == 0)
2160                         {
2161                                 size *= 4;
2162                                 count /= 4;
2163                         }
2164                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2165                         if (retval == ERROR_OK)
2166                         {
2167                                 int t;
2168                                 for (t = 0; t < buf_cnt; t++)
2169                                 {
2170                                         if (data[t] != buffer[t])
2171                                         {
2172                                                 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]);
2173                                                 free(data);
2174                                                 free(buffer);
2175                                                 retval=ERROR_FAIL;
2176                                                 goto done;
2177                                         }
2178                                 }
2179                         }
2180
2181                         free(data);
2182                 }
2183
2184                 free(buffer);
2185                 image_size += buf_cnt;
2186         }
2187 done:
2188         duration_stop_measure(&duration, &duration_text);
2189         if (retval==ERROR_OK)
2190         {
2191                 command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2192         }
2193         free(duration_text);
2194
2195         image_close(&image);
2196
2197         return retval;
2198 }
2199
2200 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2201 {
2202         int retval;
2203         target_t *target = get_current_target(cmd_ctx);
2204
2205         if (argc == 0)
2206         {
2207                 breakpoint_t *breakpoint = target->breakpoints;
2208
2209                 while (breakpoint)
2210                 {
2211                         if (breakpoint->type == BKPT_SOFT)
2212                         {
2213                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2214                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2215                                 free(buf);
2216                         }
2217                         else
2218                         {
2219                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2220                         }
2221                         breakpoint = breakpoint->next;
2222                 }
2223         }
2224         else if (argc >= 2)
2225         {
2226                 int hw = BKPT_SOFT;
2227                 u32 length = 0;
2228
2229                 length = strtoul(args[1], NULL, 0);
2230
2231                 if (argc >= 3)
2232                         if (strcmp(args[2], "hw") == 0)
2233                                 hw = BKPT_HARD;
2234
2235                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2236                 {
2237                         LOG_ERROR("Failure setting breakpoints");
2238                 }
2239                 else
2240                 {
2241                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2242                 }
2243         }
2244         else
2245         {
2246                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2247         }
2248
2249         return ERROR_OK;
2250 }
2251
2252 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2253 {
2254         target_t *target = get_current_target(cmd_ctx);
2255
2256         if (argc > 0)
2257                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2258
2259         return ERROR_OK;
2260 }
2261
2262 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2263 {
2264         target_t *target = get_current_target(cmd_ctx);
2265         int retval;
2266
2267         if (argc == 0)
2268         {
2269                 watchpoint_t *watchpoint = target->watchpoints;
2270
2271                 while (watchpoint)
2272                 {
2273                         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);
2274                         watchpoint = watchpoint->next;
2275                 }
2276         }
2277         else if (argc >= 2)
2278         {
2279                 enum watchpoint_rw type = WPT_ACCESS;
2280                 u32 data_value = 0x0;
2281                 u32 data_mask = 0xffffffff;
2282
2283                 if (argc >= 3)
2284                 {
2285                         switch(args[2][0])
2286                         {
2287                                 case 'r':
2288                                         type = WPT_READ;
2289                                         break;
2290                                 case 'w':
2291                                         type = WPT_WRITE;
2292                                         break;
2293                                 case 'a':
2294                                         type = WPT_ACCESS;
2295                                         break;
2296                                 default:
2297                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2298                                         return ERROR_OK;
2299                         }
2300                 }
2301                 if (argc >= 4)
2302                 {
2303                         data_value = strtoul(args[3], NULL, 0);
2304                 }
2305                 if (argc >= 5)
2306                 {
2307                         data_mask = strtoul(args[4], NULL, 0);
2308                 }
2309
2310                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2311                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2312                 {
2313                         LOG_ERROR("Failure setting breakpoints");
2314                 }
2315         }
2316         else
2317         {
2318                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2319         }
2320
2321         return ERROR_OK;
2322 }
2323
2324 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2325 {
2326         target_t *target = get_current_target(cmd_ctx);
2327
2328         if (argc > 0)
2329                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2330
2331         return ERROR_OK;
2332 }
2333
2334 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2335 {
2336         int retval;
2337         target_t *target = get_current_target(cmd_ctx);
2338         u32 va;
2339         u32 pa;
2340
2341         if (argc != 1)
2342         {
2343                 return ERROR_COMMAND_SYNTAX_ERROR;
2344         }
2345         va = strtoul(args[0], NULL, 0);
2346
2347         retval = target->type->virt2phys(target, va, &pa);
2348         if (retval == ERROR_OK)
2349         {
2350                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2351         }
2352         else
2353         {
2354                 /* lower levels will have logged a detailed error which is
2355                  * forwarded to telnet/GDB session.
2356                  */
2357         }
2358         return retval;
2359 }
2360 static void writeLong(FILE *f, int l)
2361 {
2362         int i;
2363         for (i=0; i<4; i++)
2364         {
2365                 char c=(l>>(i*8))&0xff;
2366                 fwrite(&c, 1, 1, f);
2367         }
2368
2369 }
2370 static void writeString(FILE *f, char *s)
2371 {
2372         fwrite(s, 1, strlen(s), f);
2373 }
2374
2375
2376
2377 // Dump a gmon.out histogram file.
2378 static void writeGmon(u32 *samples, int sampleNum, char *filename)
2379 {
2380         int i;
2381         FILE *f=fopen(filename, "w");
2382         if (f==NULL)
2383                 return;
2384         fwrite("gmon", 1, 4, f);
2385         writeLong(f, 0x00000001); // Version
2386         writeLong(f, 0); // padding
2387         writeLong(f, 0); // padding
2388         writeLong(f, 0); // padding
2389
2390         fwrite("", 1, 1, f);  // GMON_TAG_TIME_HIST
2391
2392         // figure out bucket size
2393         u32 min=samples[0];
2394         u32 max=samples[0];
2395         for (i=0; i<sampleNum; i++)
2396         {
2397                 if (min>samples[i])
2398                 {
2399                         min=samples[i];
2400                 }
2401                 if (max<samples[i])
2402                 {
2403                         max=samples[i];
2404                 }
2405         }
2406
2407         int addressSpace=(max-min+1);
2408
2409         static int const maxBuckets=256*1024; // maximum buckets.
2410         int length=addressSpace;
2411         if (length > maxBuckets)
2412         {
2413                 length=maxBuckets;
2414         }
2415         int *buckets=malloc(sizeof(int)*length);
2416         if (buckets==NULL)
2417         {
2418                 fclose(f);
2419                 return;
2420         }
2421         memset(buckets, 0, sizeof(int)*length);
2422         for (i=0; i<sampleNum;i++)
2423         {
2424                 u32 address=samples[i];
2425                 long long a=address-min;
2426                 long long b=length-1;
2427                 long long c=addressSpace-1;
2428                 int index=(a*b)/c; // danger!!!! int32 overflows
2429                 buckets[index]++;
2430         }
2431
2432         //                         append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr))
2433         writeLong(f, min);                                      // low_pc
2434         writeLong(f, max);              // high_pc
2435         writeLong(f, length);           // # of samples
2436         writeLong(f, 64000000);                         // 64MHz
2437         writeString(f, "seconds");
2438         for (i=0; i<(15-strlen("seconds")); i++)
2439         {
2440                 fwrite("", 1, 1, f);  // padding
2441         }
2442         writeString(f, "s");
2443
2444 //                         append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size)
2445
2446         char *data=malloc(2*length);
2447         if (data!=NULL)
2448         {
2449                 for (i=0; i<length;i++)
2450                 {
2451                         int val;
2452                         val=buckets[i];
2453                         if (val>65535)
2454                         {
2455                                 val=65535;
2456                         }
2457                         data[i*2]=val&0xff;
2458                         data[i*2+1]=(val>>8)&0xff;
2459                 }
2460                 free(buckets);
2461                 fwrite(data, 1, length*2, f);
2462                 free(data);
2463         } else
2464         {
2465                 free(buckets);
2466         }
2467
2468         fclose(f);
2469 }
2470
2471 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
2472 int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2473 {
2474         target_t *target = get_current_target(cmd_ctx);
2475         struct timeval timeout, now;
2476
2477         gettimeofday(&timeout, NULL);
2478         if (argc!=2)
2479         {
2480                 return ERROR_COMMAND_SYNTAX_ERROR;
2481         }
2482         char *end;
2483         timeval_add_time(&timeout, strtoul(args[0], &end, 0), 0);
2484         if (*end)
2485         {
2486                 return ERROR_OK;
2487         }
2488
2489         command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
2490
2491         static const int maxSample=10000;
2492         u32 *samples=malloc(sizeof(u32)*maxSample);
2493         if (samples==NULL)
2494                 return ERROR_OK;
2495
2496         int numSamples=0;
2497         int retval=ERROR_OK;
2498         // hopefully it is safe to cache! We want to stop/restart as quickly as possible.
2499         reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
2500
2501         for (;;)
2502         {
2503                 target_poll(target);
2504                 if (target->state == TARGET_HALTED)
2505                 {
2506                         u32 t=*((u32 *)reg->value);
2507                         samples[numSamples++]=t;
2508                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2509                         target_poll(target);
2510                         usleep(10*1000); // sleep 10ms, i.e. <100 samples/second.
2511                 } else if (target->state == TARGET_RUNNING)
2512                 {
2513                         // We want to quickly sample the PC.
2514                         target_halt(target);
2515                 } else
2516                 {
2517                         command_print(cmd_ctx, "Target not halted or running");
2518                         retval=ERROR_OK;
2519                         break;
2520                 }
2521                 if (retval!=ERROR_OK)
2522                 {
2523                         break;
2524                 }
2525
2526                 gettimeofday(&now, NULL);
2527                 if ((numSamples>=maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
2528                 {
2529                         command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
2530                         target_poll(target);
2531                         if (target->state == TARGET_HALTED)
2532                         {
2533                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
2534                         }
2535                         target_poll(target);
2536                         writeGmon(samples, numSamples, args[1]);
2537                         command_print(cmd_ctx, "Wrote %s", args[1]);
2538                         break;
2539                 }
2540         }
2541         free(samples);
2542
2543         return ERROR_OK;
2544 }
2545
2546 static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 val)
2547 {
2548         char *namebuf;
2549         Jim_Obj *nameObjPtr, *valObjPtr;
2550         int result;
2551
2552         namebuf = alloc_printf("%s(%d)", varname, idx);
2553         if (!namebuf)
2554                 return JIM_ERR;
2555
2556         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
2557         valObjPtr = Jim_NewIntObj(interp, val);
2558         if (!nameObjPtr || !valObjPtr)
2559         {
2560                 free(namebuf);
2561                 return JIM_ERR;
2562         }
2563
2564         Jim_IncrRefCount(nameObjPtr);
2565         Jim_IncrRefCount(valObjPtr);
2566         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
2567         Jim_DecrRefCount(interp, nameObjPtr);
2568         Jim_DecrRefCount(interp, valObjPtr);
2569         free(namebuf);
2570         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
2571         return result;
2572 }
2573
2574 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
2575 {
2576         target_t *target;
2577         command_context_t *context;
2578         long l;
2579         u32 width;
2580         u32 len;
2581         u32 addr;
2582         u32 count;
2583         u32 v;
2584         const char *varname;
2585         u8 buffer[4096];
2586         int  i, n, e, retval;
2587
2588         /* argv[1] = name of array to receive the data
2589          * argv[2] = desired width
2590          * argv[3] = memory address
2591          * argv[4] = count of times to read
2592          */
2593         if (argc != 5) {
2594                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
2595                 return JIM_ERR;
2596         }
2597         varname = Jim_GetString(argv[1], &len);
2598         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
2599
2600         e = Jim_GetLong(interp, argv[2], &l);
2601         width = l;
2602         if (e != JIM_OK) {
2603                 return e;
2604         }
2605
2606         e = Jim_GetLong(interp, argv[3], &l);
2607         addr = l;
2608         if (e != JIM_OK) {
2609                 return e;
2610         }
2611         e = Jim_GetLong(interp, argv[4], &l);
2612         len = l;
2613         if (e != JIM_OK) {
2614                 return e;
2615         }
2616         switch (width) {
2617                 case 8:
2618                         width = 1;
2619                         break;
2620                 case 16:
2621                         width = 2;
2622                         break;
2623                 case 32:
2624                         width = 4;
2625                         break;
2626                 default:
2627                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2628                         Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
2629                         return JIM_ERR;
2630         }
2631         if (len == 0) {
2632                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2633                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
2634                 return JIM_ERR;
2635         }
2636         if ((addr + (len * width)) < addr) {
2637                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2638                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
2639                 return JIM_ERR;
2640         }
2641         /* absurd transfer size? */
2642         if (len > 65536) {
2643                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2644                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
2645                 return JIM_ERR;
2646         }
2647
2648         if ((width == 1) ||
2649                 ((width == 2) && ((addr & 1) == 0)) ||
2650                 ((width == 4) && ((addr & 3) == 0))) {
2651                 /* all is well */
2652         } else {
2653                 char buf[100];
2654                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2655                 sprintf(buf, "mem2array address: 0x%08x is not aligned for %d byte reads", addr, width);
2656                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
2657                 return JIM_ERR;
2658         }
2659
2660         context = Jim_GetAssocData(interp, "context");
2661         if (context == NULL)
2662         {
2663                 LOG_ERROR("mem2array: no command context");
2664                 return JIM_ERR;
2665         }
2666         target = get_current_target(context);
2667         if (target == NULL)
2668         {
2669                 LOG_ERROR("mem2array: no current target");
2670                 return JIM_ERR;
2671         }
2672
2673         /* Transfer loop */
2674
2675         /* index counter */
2676         n = 0;
2677         /* assume ok */
2678         e = JIM_OK;
2679         while (len) {
2680                 /* Slurp... in buffer size chunks */
2681
2682                 count = len; /* in objects.. */
2683                 if (count > (sizeof(buffer)/width)) {
2684                         count = (sizeof(buffer)/width);
2685                 }
2686
2687                 retval = target->type->read_memory( target, addr, width, count, buffer );
2688                 if (retval != ERROR_OK) {
2689                         /* BOO !*/
2690                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count);
2691                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2692                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
2693                         e = JIM_ERR;
2694                         len = 0;
2695                 } else {
2696                         v = 0; /* shut up gcc */
2697                         for (i = 0 ;i < count ;i++, n++) {
2698                                 switch (width) {
2699                                         case 4:
2700                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
2701                                                 break;
2702                                         case 2:
2703                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
2704                                                 break;
2705                                         case 1:
2706                                                 v = buffer[i] & 0x0ff;
2707                                                 break;
2708                                 }
2709                                 new_int_array_element(interp, varname, n, v);
2710                         }
2711                         len -= count;
2712                 }
2713         }
2714
2715         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2716
2717         return JIM_OK;
2718 }
2719
2720 static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 *val)
2721 {
2722         char *namebuf;
2723         Jim_Obj *nameObjPtr, *valObjPtr;
2724         int result;
2725         long l;
2726
2727         namebuf = alloc_printf("%s(%d)", varname, idx);
2728         if (!namebuf)
2729                 return JIM_ERR;
2730
2731         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
2732         if (!nameObjPtr)
2733         {
2734                 free(namebuf);
2735                 return JIM_ERR;
2736         }
2737
2738         Jim_IncrRefCount(nameObjPtr);
2739         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
2740         Jim_DecrRefCount(interp, nameObjPtr);
2741         free(namebuf);
2742         if (valObjPtr == NULL)
2743                 return JIM_ERR;
2744
2745         result = Jim_GetLong(interp, valObjPtr, &l);
2746         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
2747         *val = l;
2748         return result;
2749 }
2750
2751 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
2752 {
2753         target_t *target;
2754         command_context_t *context;
2755         long l;
2756         u32 width;
2757         u32 len;
2758         u32 addr;
2759         u32 count;
2760         u32 v;
2761         const char *varname;
2762         u8 buffer[4096];
2763         int  i, n, e, retval;
2764
2765         /* argv[1] = name of array to get the data
2766          * argv[2] = desired width
2767          * argv[3] = memory address
2768          * argv[4] = count to write
2769          */
2770         if (argc != 5) {
2771                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
2772                 return JIM_ERR;
2773         }
2774         varname = Jim_GetString(argv[1], &len);
2775         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
2776
2777         e = Jim_GetLong(interp, argv[2], &l);
2778         width = l;
2779         if (e != JIM_OK) {
2780                 return e;
2781         }
2782
2783         e = Jim_GetLong(interp, argv[3], &l);
2784         addr = l;
2785         if (e != JIM_OK) {
2786                 return e;
2787         }
2788         e = Jim_GetLong(interp, argv[4], &l);
2789         len = l;
2790         if (e != JIM_OK) {
2791                 return e;
2792         }
2793         switch (width) {
2794                 case 8:
2795                         width = 1;
2796                         break;
2797                 case 16:
2798                         width = 2;
2799                         break;
2800                 case 32:
2801                         width = 4;
2802                         break;
2803                 default:
2804                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2805                         Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
2806                         return JIM_ERR;
2807         }
2808         if (len == 0) {
2809                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2810                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
2811                 return JIM_ERR;
2812         }
2813         if ((addr + (len * width)) < addr) {
2814                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2815                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
2816                 return JIM_ERR;
2817         }
2818         /* absurd transfer size? */
2819         if (len > 65536) {
2820                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2821                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
2822                 return JIM_ERR;
2823         }
2824
2825         if ((width == 1) ||
2826                 ((width == 2) && ((addr & 1) == 0)) ||
2827                 ((width == 4) && ((addr & 3) == 0))) {
2828                 /* all is well */
2829         } else {
2830                 char buf[100];
2831                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2832                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads", addr, width);
2833                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
2834                 return JIM_ERR;
2835         }
2836
2837         context = Jim_GetAssocData(interp, "context");
2838         if (context == NULL)
2839         {
2840                 LOG_ERROR("array2mem: no command context");
2841                 return JIM_ERR;
2842         }
2843         target = get_current_target(context);
2844         if (target == NULL)
2845         {
2846                 LOG_ERROR("array2mem: no current target");
2847                 return JIM_ERR;
2848         }
2849
2850         /* Transfer loop */
2851
2852         /* index counter */
2853         n = 0;
2854         /* assume ok */
2855         e = JIM_OK;
2856         while (len) {
2857                 /* Slurp... in buffer size chunks */
2858
2859                 count = len; /* in objects.. */
2860                 if (count > (sizeof(buffer)/width)) {
2861                         count = (sizeof(buffer)/width);
2862                 }
2863
2864                 v = 0; /* shut up gcc */
2865                 for (i = 0 ;i < count ;i++, n++) {
2866                         get_int_array_element(interp, varname, n, &v);
2867                         switch (width) {
2868                         case 4:
2869                                 target_buffer_set_u32(target, &buffer[i*width], v);
2870                                 break;
2871                         case 2:
2872                                 target_buffer_set_u16(target, &buffer[i*width], v);
2873                                 break;
2874                         case 1:
2875                                 buffer[i] = v & 0x0ff;
2876                                 break;
2877                         }
2878                 }
2879                 len -= count;
2880
2881                 retval = target->type->write_memory(target, addr, width, count, buffer);
2882                 if (retval != ERROR_OK) {
2883                         /* BOO !*/
2884                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count);
2885                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2886                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
2887                         e = JIM_ERR;
2888                         len = 0;
2889                 }
2890         }
2891
2892         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2893
2894         return JIM_OK;
2895 }