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