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