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