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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   This program is free software; you can redistribute it and/or modify  *
  24  *   it under the terms of the GNU General Public License as published by  *
  25  *   the Free Software Foundation; either version 2 of the License, or     *
  26  *   (at your option) any later version.                                   *
  27  *                                                                         *
  28  *   This program is distributed in the hope that it will be useful,       *
  29  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  30  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  31  *   GNU General Public License for more details.                          *
  32  *                                                                         *
  33  *   You should have received a copy of the GNU General Public License     *
  34  *   along with this program; if not, write to the                         *
  35  *   Free Software Foundation, Inc.,                                       *
  36  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  37  ***************************************************************************/
  38 #ifdef HAVE_CONFIG_H
  39 #include "config.h"
  40 #endif
  41
  42 #include <helper/time_support.h>
  43 #include <jtag/jtag.h>
  44 #include <flash/nor/core.h>
  45
  46 #include "target.h"
  47 #include "target_type.h"
  48 #include "target_request.h"
  49 #include "breakpoints.h"
  50 #include "register.h"
  51 #include "trace.h"
  52 #include "image.h"
  53 #include "rtos/rtos.h"
  54
  55
  56 static int target_read_buffer_default(struct target *target, uint32_t address,
  57                 uint32_t size, uint8_t *buffer);
  58 static int target_write_buffer_default(struct target *target, uint32_t address,
  59                 uint32_t size, const uint8_t *buffer);
  60 static int target_array2mem(Jim_Interp *interp, struct target *target,
  61                 int argc, Jim_Obj *const *argv);
  62 static int target_mem2array(Jim_Interp *interp, struct target *target,
  63                 int argc, Jim_Obj *const *argv);
  64 static int target_register_user_commands(struct command_context *cmd_ctx);
  65
  66 /* targets */
  67 extern struct target_type arm7tdmi_target;
  68 extern struct target_type arm720t_target;
  69 extern struct target_type arm9tdmi_target;
  70 extern struct target_type arm920t_target;
  71 extern struct target_type arm966e_target;
  72 extern struct target_type arm946e_target;
  73 extern struct target_type arm926ejs_target;
  74 extern struct target_type fa526_target;
  75 extern struct target_type feroceon_target;
  76 extern struct target_type dragonite_target;
  77 extern struct target_type xscale_target;
  78 extern struct target_type cortexm3_target;
  79 extern struct target_type cortexa8_target;
  80 extern struct target_type arm11_target;
  81 extern struct target_type mips_m4k_target;
  82 extern struct target_type avr_target;
  83 extern struct target_type dsp563xx_target;
  84 extern struct target_type testee_target;
  85 extern struct target_type avr32_ap7k_target;
  86
  87 static struct target_type *target_types[] =
  88 {
  89         &arm7tdmi_target,
  90         &arm9tdmi_target,
  91         &arm920t_target,
  92         &arm720t_target,
  93         &arm966e_target,
  94         &arm946e_target,
  95         &arm926ejs_target,
  96         &fa526_target,
  97         &feroceon_target,
  98         &dragonite_target,
  99         &xscale_target,
 100         &cortexm3_target,
 101         &cortexa8_target,
 102         &arm11_target,
 103         &mips_m4k_target,
 104         &avr_target,
 105         &dsp563xx_target,
 106         &testee_target,
 107         &avr32_ap7k_target,
 108         NULL,
 109 };
 110
 111 struct target *all_targets = NULL;
 112 static struct target_event_callback *target_event_callbacks = NULL;
 113 static struct target_timer_callback *target_timer_callbacks = NULL;
 114 static const int polling_interval = 100;
 115
 116 static const Jim_Nvp nvp_assert[] = {
 117         { .name = "assert", NVP_ASSERT },
 118         { .name = "deassert", NVP_DEASSERT },
 119         { .name = "T", NVP_ASSERT },
 120         { .name = "F", NVP_DEASSERT },
 121         { .name = "t", NVP_ASSERT },
 122         { .name = "f", NVP_DEASSERT },
 123         { .name = NULL, .value = -1 }
 124 };
 125
 126 static const Jim_Nvp nvp_error_target[] = {
 127         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 128         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 129         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 130         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 131         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 132         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 133         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 134         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 135         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 136         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 137         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 138         { .value = -1, .name = NULL }
 139 };
 140
 141 static const char *target_strerror_safe(int err)
 142 {
 143         const Jim_Nvp *n;
 144
 145         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 146         if (n->name == NULL) {
 147                 return "unknown";
 148         } else {
 149                 return n->name;
 150         }
 151 }
 152
 153 static const Jim_Nvp nvp_target_event[] = {
 154         { .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
 155         { .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
 156
 157         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 158         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 159         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 160         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 161         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 162
 163         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 164         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 165
 166         /* historical name */
 167
 168         { .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
 169
 170         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 171         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 172         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 173         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 174         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 175         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 176         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 177         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 178         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 179         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 180         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 181
 182         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 183         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 184
 185         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 186         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 187
 188         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 189         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 190
 191         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 192         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 193
 194         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 195         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 196
 197         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 198         { .value = TARGET_EVENT_RESUMED     , .name = "resume-ok" },
 199         { .value = TARGET_EVENT_RESUME_END  , .name = "resume-end" },
 200
 201         { .name = NULL, .value = -1 }
 202 };
 203
 204 static const Jim_Nvp nvp_target_state[] = {
 205         { .name = "unknown", .value = TARGET_UNKNOWN },
 206         { .name = "running", .value = TARGET_RUNNING },
 207         { .name = "halted",  .value = TARGET_HALTED },
 208         { .name = "reset",   .value = TARGET_RESET },
 209         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 210         { .name = NULL, .value = -1 },
 211 };
 212
 213 static const Jim_Nvp nvp_target_debug_reason [] = {
 214         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 215         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 216         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 217         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 218         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 219         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 220         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 221         { .name = NULL, .value = -1 },
 222 };
 223
 224 static const Jim_Nvp nvp_target_endian[] = {
 225         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 226         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 227         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 228         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 229         { .name = NULL,     .value = -1 },
 230 };
 231
 232 static const Jim_Nvp nvp_reset_modes[] = {
 233         { .name = "unknown", .value = RESET_UNKNOWN },
 234         { .name = "run"    , .value = RESET_RUN },
 235         { .name = "halt"   , .value = RESET_HALT },
 236         { .name = "init"   , .value = RESET_INIT },
 237         { .name = NULL     , .value = -1 },
 238 };
 239
 240 const char *debug_reason_name(struct target *t)
 241 {
 242         const char *cp;
 243
 244         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 245                         t->debug_reason)->name;
 246         if (!cp) {
 247                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 248                 cp = "(*BUG*unknown*BUG*)";
 249         }
 250         return cp;
 251 }
 252
 253 const char *
 254 target_state_name( struct target *t )
 255 {
 256         const char *cp;
 257         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 258         if( !cp ){
 259                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 260                 cp = "(*BUG*unknown*BUG*)";
 261         }
 262         return cp;
 263 }
 264
 265 /* determine the number of the new target */
 266 static int new_target_number(void)
 267 {
 268         struct target *t;
 269         int x;
 270
 271         /* number is 0 based */
 272         x = -1;
 273         t = all_targets;
 274         while (t) {
 275                 if (x < t->target_number) {
 276                         x = t->target_number;
 277                 }
 278                 t = t->next;
 279         }
 280         return x + 1;
 281 }
 282
 283 /* read a uint32_t from a buffer in target memory endianness */
 284 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 285 {
 286         if (target->endianness == TARGET_LITTLE_ENDIAN)
 287                 return le_to_h_u32(buffer);
 288         else
 289                 return be_to_h_u32(buffer);
 290 }
 291
 292 /* read a uint24_t from a buffer in target memory endianness */
 293 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 294 {
 295         if (target->endianness == TARGET_LITTLE_ENDIAN)
 296                 return le_to_h_u24(buffer);
 297         else
 298                 return be_to_h_u24(buffer);
 299 }
 300
 301 /* read a uint16_t from a buffer in target memory endianness */
 302 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 303 {
 304         if (target->endianness == TARGET_LITTLE_ENDIAN)
 305                 return le_to_h_u16(buffer);
 306         else
 307                 return be_to_h_u16(buffer);
 308 }
 309
 310 /* read a uint8_t from a buffer in target memory endianness */
 311 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 312 {
 313         return *buffer & 0x0ff;
 314 }
 315
 316 /* write a uint32_t to a buffer in target memory endianness */
 317 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 318 {
 319         if (target->endianness == TARGET_LITTLE_ENDIAN)
 320                 h_u32_to_le(buffer, value);
 321         else
 322                 h_u32_to_be(buffer, value);
 323 }
 324
 325 /* write a uint24_t to a buffer in target memory endianness */
 326 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 327 {
 328         if (target->endianness == TARGET_LITTLE_ENDIAN)
 329                 h_u24_to_le(buffer, value);
 330         else
 331                 h_u24_to_be(buffer, value);
 332 }
 333
 334 /* write a uint16_t to a buffer in target memory endianness */
 335 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 336 {
 337         if (target->endianness == TARGET_LITTLE_ENDIAN)
 338                 h_u16_to_le(buffer, value);
 339         else
 340                 h_u16_to_be(buffer, value);
 341 }
 342
 343 /* write a uint8_t to a buffer in target memory endianness */
 344 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 345 {
 346         *buffer = value;
 347 }
 348
 349 /* return a pointer to a configured target; id is name or number */
 350 struct target *get_target(const char *id)
 351 {
 352         struct target *target;
 353
 354         /* try as tcltarget name */
 355         for (target = all_targets; target; target = target->next) {
 356                 if (target->cmd_name == NULL)
 357                         continue;
 358                 if (strcmp(id, target->cmd_name) == 0)
 359                         return target;
 360         }
 361
 362         /* It's OK to remove this fallback sometime after August 2010 or so */
 363
 364         /* no match, try as number */
 365         unsigned num;
 366         if (parse_uint(id, &num) != ERROR_OK)
 367                 return NULL;
 368
 369         for (target = all_targets; target; target = target->next) {
 370                 if (target->target_number == (int)num) {
 371                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 372                                         target->cmd_name, num);
 373                         return target;
 374                 }
 375         }
 376
 377         return NULL;
 378 }
 379
 380 /* returns a pointer to the n-th configured target */
 381 static struct target *get_target_by_num(int num)
 382 {
 383         struct target *target = all_targets;
 384
 385         while (target) {
 386                 if (target->target_number == num) {
 387                         return target;
 388                 }
 389                 target = target->next;
 390         }
 391
 392         return NULL;
 393 }
 394
 395 struct target* get_current_target(struct command_context *cmd_ctx)
 396 {
 397         struct target *target = get_target_by_num(cmd_ctx->current_target);
 398
 399         if (target == NULL)
 400         {
 401                 LOG_ERROR("BUG: current_target out of bounds");
 402                 exit(-1);
 403         }
 404
 405         return target;
 406 }
 407
 408 int target_poll(struct target *target)
 409 {
 410         int retval;
 411
 412         /* We can't poll until after examine */
 413         if (!target_was_examined(target))
 414         {
 415                 /* Fail silently lest we pollute the log */
 416                 return ERROR_FAIL;
 417         }
 418
 419         retval = target->type->poll(target);
 420         if (retval != ERROR_OK)
 421                 return retval;
 422
 423         if (target->halt_issued)
 424         {
 425                 if (target->state == TARGET_HALTED)
 426                 {
 427                         target->halt_issued = false;
 428                 } else
 429                 {
 430                         long long t = timeval_ms() - target->halt_issued_time;
 431                         if (t>1000)
 432                         {
 433                                 target->halt_issued = false;
 434                                 LOG_INFO("Halt timed out, wake up GDB.");
 435                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 436                         }
 437                 }
 438         }
 439
 440         return ERROR_OK;
 441 }
 442
 443 int target_halt(struct target *target)
 444 {
 445         int retval;
 446         /* We can't poll until after examine */
 447         if (!target_was_examined(target))
 448         {
 449                 LOG_ERROR("Target not examined yet");
 450                 return ERROR_FAIL;
 451         }
 452
 453         retval = target->type->halt(target);
 454         if (retval != ERROR_OK)
 455                 return retval;
 456
 457         target->halt_issued = true;
 458         target->halt_issued_time = timeval_ms();
 459
 460         return ERROR_OK;
 461 }
 462
 463 /**
 464  * Make the target (re)start executing using its saved execution
 465  * context (possibly with some modifications).
 466  *
 467  * @param target Which target should start executing.
 468  * @param current True to use the target's saved program counter instead
 469  *      of the address parameter
 470  * @param address Optionally used as the program counter.
 471  * @param handle_breakpoints True iff breakpoints at the resumption PC
 472  *      should be skipped.  (For example, maybe execution was stopped by
 473  *      such a breakpoint, in which case it would be counterprodutive to
 474  *      let it re-trigger.
 475  * @param debug_execution False if all working areas allocated by OpenOCD
 476  *      should be released and/or restored to their original contents.
 477  *      (This would for example be true to run some downloaded "helper"
 478  *      algorithm code, which resides in one such working buffer and uses
 479  *      another for data storage.)
 480  *
 481  * @todo Resolve the ambiguity about what the "debug_execution" flag
 482  * signifies.  For example, Target implementations don't agree on how
 483  * it relates to invalidation of the register cache, or to whether
 484  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 485  * to enable breakpoints when running downloaded "helper" algorithms
 486  * (debug_execution true), since the breakpoints would be set to match
 487  * target firmware being debugged, not the helper algorithm.... and
 488  * enabling them could cause such helpers to malfunction (for example,
 489  * by overwriting data with a breakpoint instruction.  On the other
 490  * hand the infrastructure for running such helpers might use this
 491  * procedure but rely on hardware breakpoint to detect termination.)
 492  */
 493 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 494 {
 495         int retval;
 496
 497         /* We can't poll until after examine */
 498         if (!target_was_examined(target))
 499         {
 500                 LOG_ERROR("Target not examined yet");
 501                 return ERROR_FAIL;
 502         }
 503
 504         /* note that resume *must* be asynchronous. The CPU can halt before
 505          * we poll. The CPU can even halt at the current PC as a result of
 506          * a software breakpoint being inserted by (a bug?) the application.
 507          */
 508         if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
 509                 return retval;
 510
 511         return retval;
 512 }
 513
 514 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 515 {
 516         char buf[100];
 517         int retval;
 518         Jim_Nvp *n;
 519         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 520         if (n->name == NULL) {
 521                 LOG_ERROR("invalid reset mode");
 522                 return ERROR_FAIL;
 523         }
 524
 525         /* disable polling during reset to make reset event scripts
 526          * more predictable, i.e. dr/irscan & pathmove in events will
 527          * not have JTAG operations injected into the middle of a sequence.
 528          */
 529         bool save_poll = jtag_poll_get_enabled();
 530
 531         jtag_poll_set_enabled(false);
 532
 533         sprintf(buf, "ocd_process_reset %s", n->name);
 534         retval = Jim_Eval(cmd_ctx->interp, buf);
 535
 536         jtag_poll_set_enabled(save_poll);
 537
 538         if (retval != JIM_OK) {
 539                 Jim_MakeErrorMessage(cmd_ctx->interp);
 540                 command_print(NULL,"%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 541                 return ERROR_FAIL;
 542         }
 543
 544         /* We want any events to be processed before the prompt */
 545         retval = target_call_timer_callbacks_now();
 546
 547         struct target *target;
 548         for (target = all_targets; target; target = target->next) {
 549                 target->type->check_reset(target);
 550         }
 551
 552         return retval;
 553 }
 554
 555 static int identity_virt2phys(struct target *target,
 556                 uint32_t virtual, uint32_t *physical)
 557 {
 558         *physical = virtual;
 559         return ERROR_OK;
 560 }
 561
 562 static int no_mmu(struct target *target, int *enabled)
 563 {
 564         *enabled = 0;
 565         return ERROR_OK;
 566 }
 567
 568 static int default_examine(struct target *target)
 569 {
 570         target_set_examined(target);
 571         return ERROR_OK;
 572 }
 573
 574 /* no check by default */
 575 static int default_check_reset(struct target *target)
 576 {
 577         return ERROR_OK;
 578 }
 579
 580 int target_examine_one(struct target *target)
 581 {
 582         return target->type->examine(target);
 583 }
 584
 585 static int jtag_enable_callback(enum jtag_event event, void *priv)
 586 {
 587         struct target *target = priv;
 588
 589         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 590                 return ERROR_OK;
 591
 592         jtag_unregister_event_callback(jtag_enable_callback, target);
 593         return target_examine_one(target);
 594 }
 595
 596
 597 /* Targets that correctly implement init + examine, i.e.
 598  * no communication with target during init:
 599  *
 600  * XScale
 601  */
 602 int target_examine(void)
 603 {
 604         int retval = ERROR_OK;
 605         struct target *target;
 606
 607         for (target = all_targets; target; target = target->next)
 608         {
 609                 /* defer examination, but don't skip it */
 610                 if (!target->tap->enabled) {
 611                         jtag_register_event_callback(jtag_enable_callback,
 612                                         target);
 613                         continue;
 614                 }
 615                 if ((retval = target_examine_one(target)) != ERROR_OK)
 616                         return retval;
 617         }
 618         return retval;
 619 }
 620 const char *target_type_name(struct target *target)
 621 {
 622         return target->type->name;
 623 }
 624
 625 static int target_write_memory_imp(struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 626 {
 627         if (!target_was_examined(target))
 628         {
 629                 LOG_ERROR("Target not examined yet");
 630                 return ERROR_FAIL;
 631         }
 632         return target->type->write_memory_imp(target, address, size, count, buffer);
 633 }
 634
 635 static int target_read_memory_imp(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 636 {
 637         if (!target_was_examined(target))
 638         {
 639                 LOG_ERROR("Target not examined yet");
 640                 return ERROR_FAIL;
 641         }
 642         return target->type->read_memory_imp(target, address, size, count, buffer);
 643 }
 644
 645 static int target_soft_reset_halt_imp(struct target *target)
 646 {
 647         if (!target_was_examined(target))
 648         {
 649                 LOG_ERROR("Target not examined yet");
 650                 return ERROR_FAIL;
 651         }
 652         if (!target->type->soft_reset_halt_imp) {
 653                 LOG_ERROR("Target %s does not support soft_reset_halt",
 654                                 target_name(target));
 655                 return ERROR_FAIL;
 656         }
 657         return target->type->soft_reset_halt_imp(target);
 658 }
 659
 660 /**
 661  * Downloads a target-specific native code algorithm to the target,
 662  * and executes it.  * Note that some targets may need to set up, enable,
 663  * and tear down a breakpoint (hard or * soft) to detect algorithm
 664  * termination, while others may support  lower overhead schemes where
 665  * soft breakpoints embedded in the algorithm automatically terminate the
 666  * algorithm.
 667  *
 668  * @param target used to run the algorithm
 669  * @param arch_info target-specific description of the algorithm.
 670  */
 671 int target_run_algorithm(struct target *target,
 672                 int num_mem_params, struct mem_param *mem_params,
 673                 int num_reg_params, struct reg_param *reg_param,
 674                 uint32_t entry_point, uint32_t exit_point,
 675                 int timeout_ms, void *arch_info)
 676 {
 677         int retval = ERROR_FAIL;
 678
 679         if (!target_was_examined(target))
 680         {
 681                 LOG_ERROR("Target not examined yet");
 682                 goto done;
 683         }
 684         if (!target->type->run_algorithm) {
 685                 LOG_ERROR("Target type '%s' does not support %s",
 686                                 target_type_name(target), __func__);
 687                 goto done;
 688         }
 689
 690         target->running_alg = true;
 691         retval = target->type->run_algorithm(target,
 692                         num_mem_params, mem_params,
 693                         num_reg_params, reg_param,
 694                         entry_point, exit_point, timeout_ms, arch_info);
 695         target->running_alg = false;
 696
 697 done:
 698         return retval;
 699 }
 700
 701
 702 int target_read_memory(struct target *target,
 703                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 704 {
 705         return target->type->read_memory(target, address, size, count, buffer);
 706 }
 707
 708 static int target_read_phys_memory(struct target *target,
 709                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 710 {
 711         return target->type->read_phys_memory(target, address, size, count, buffer);
 712 }
 713
 714 int target_write_memory(struct target *target,
 715                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 716 {
 717         return target->type->write_memory(target, address, size, count, buffer);
 718 }
 719
 720 static int target_write_phys_memory(struct target *target,
 721                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 722 {
 723         return target->type->write_phys_memory(target, address, size, count, buffer);
 724 }
 725
 726 int target_bulk_write_memory(struct target *target,
 727                 uint32_t address, uint32_t count, const uint8_t *buffer)
 728 {
 729         return target->type->bulk_write_memory(target, address, count, buffer);
 730 }
 731
 732 int target_add_breakpoint(struct target *target,
 733                 struct breakpoint *breakpoint)
 734 {
 735         if ((target->state != TARGET_HALTED)&&(breakpoint->type!=BKPT_HARD)) {
 736                 LOG_WARNING("target %s is not halted", target->cmd_name);
 737                 return ERROR_TARGET_NOT_HALTED;
 738         }
 739         return target->type->add_breakpoint(target, breakpoint);
 740 }
 741 int target_remove_breakpoint(struct target *target,
 742                 struct breakpoint *breakpoint)
 743 {
 744         return target->type->remove_breakpoint(target, breakpoint);
 745 }
 746
 747 int target_add_watchpoint(struct target *target,
 748                 struct watchpoint *watchpoint)
 749 {
 750         if (target->state != TARGET_HALTED) {
 751                 LOG_WARNING("target %s is not halted", target->cmd_name);
 752                 return ERROR_TARGET_NOT_HALTED;
 753         }
 754         return target->type->add_watchpoint(target, watchpoint);
 755 }
 756 int target_remove_watchpoint(struct target *target,
 757                 struct watchpoint *watchpoint)
 758 {
 759         return target->type->remove_watchpoint(target, watchpoint);
 760 }
 761
 762 int target_get_gdb_reg_list(struct target *target,
 763                 struct reg **reg_list[], int *reg_list_size)
 764 {
 765         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
 766 }
 767 int target_step(struct target *target,
 768                 int current, uint32_t address, int handle_breakpoints)
 769 {
 770         return target->type->step(target, current, address, handle_breakpoints);
 771 }
 772
 773
 774 /**
 775  * Reset the @c examined flag for the given target.
 776  * Pure paranoia -- targets are zeroed on allocation.
 777  */
 778 static void target_reset_examined(struct target *target)
 779 {
 780         target->examined = false;
 781 }
 782
 783 static int
 784 err_read_phys_memory(struct target *target, uint32_t address,
 785                 uint32_t size, uint32_t count, uint8_t *buffer)
 786 {
 787         LOG_ERROR("Not implemented: %s", __func__);
 788         return ERROR_FAIL;
 789 }
 790
 791 static int
 792 err_write_phys_memory(struct target *target, uint32_t address,
 793                 uint32_t size, uint32_t count, const uint8_t *buffer)
 794 {
 795         LOG_ERROR("Not implemented: %s", __func__);
 796         return ERROR_FAIL;
 797 }
 798
 799 static int handle_target(void *priv);
 800
 801 static int target_init_one(struct command_context *cmd_ctx,
 802                 struct target *target)
 803 {
 804         target_reset_examined(target);
 805
 806         struct target_type *type = target->type;
 807         if (type->examine == NULL)
 808                 type->examine = default_examine;
 809
 810         if (type->check_reset== NULL)
 811                 type->check_reset = default_check_reset;
 812
 813         int retval = type->init_target(cmd_ctx, target);
 814         if (ERROR_OK != retval)
 815         {
 816                 LOG_ERROR("target '%s' init failed", target_name(target));
 817                 return retval;
 818         }
 819
 820         /**
 821          * @todo get rid of those *memory_imp() methods, now that all
 822          * callers are using target_*_memory() accessors ... and make
 823          * sure the "physical" paths handle the same issues.
 824          */
 825         /* a non-invasive way(in terms of patches) to add some code that
 826          * runs before the type->write/read_memory implementation
 827          */
 828         type->write_memory_imp = target->type->write_memory;
 829         type->write_memory = target_write_memory_imp;
 830
 831         type->read_memory_imp = target->type->read_memory;
 832         type->read_memory = target_read_memory_imp;
 833
 834         type->soft_reset_halt_imp = target->type->soft_reset_halt;
 835         type->soft_reset_halt = target_soft_reset_halt_imp;
 836
 837         /* Sanity-check MMU support ... stub in what we must, to help
 838          * implement it in stages, but warn if we need to do so.
 839          */
 840         if (type->mmu)
 841         {
 842                 if (type->write_phys_memory == NULL)
 843                 {
 844                         LOG_ERROR("type '%s' is missing write_phys_memory",
 845                                         type->name);
 846                         type->write_phys_memory = err_write_phys_memory;
 847                 }
 848                 if (type->read_phys_memory == NULL)
 849                 {
 850                         LOG_ERROR("type '%s' is missing read_phys_memory",
 851                                         type->name);
 852                         type->read_phys_memory = err_read_phys_memory;
 853                 }
 854                 if (type->virt2phys == NULL)
 855                 {
 856                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
 857                         type->virt2phys = identity_virt2phys;
 858                 }
 859         }
 860         else
 861         {
 862                 /* Make sure no-MMU targets all behave the same:  make no
 863                  * distinction between physical and virtual addresses, and
 864                  * ensure that virt2phys() is always an identity mapping.
 865                  */
 866                 if (type->write_phys_memory || type->read_phys_memory
 867                                 || type->virt2phys)
 868                 {
 869                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
 870                 }
 871
 872                 type->mmu = no_mmu;
 873                 type->write_phys_memory = type->write_memory;
 874                 type->read_phys_memory = type->read_memory;
 875                 type->virt2phys = identity_virt2phys;
 876         }
 877
 878         if (target->type->read_buffer == NULL)
 879                 target->type->read_buffer = target_read_buffer_default;
 880
 881         if (target->type->write_buffer == NULL)
 882                 target->type->write_buffer = target_write_buffer_default;
 883
 884         return ERROR_OK;
 885 }
 886
 887 static int target_init(struct command_context *cmd_ctx)
 888 {
 889         struct target *target;
 890         int retval;
 891
 892         for (target = all_targets; target; target = target->next)
 893         {
 894                 retval = target_init_one(cmd_ctx, target);
 895                 if (ERROR_OK != retval)
 896                         return retval;
 897         }
 898
 899         if (!all_targets)
 900                 return ERROR_OK;
 901
 902         retval = target_register_user_commands(cmd_ctx);
 903         if (ERROR_OK != retval)
 904                 return retval;
 905
 906         retval = target_register_timer_callback(&handle_target,
 907                         polling_interval, 1, cmd_ctx->interp);
 908         if (ERROR_OK != retval)
 909                 return retval;
 910
 911         return ERROR_OK;
 912 }
 913
 914 COMMAND_HANDLER(handle_target_init_command)
 915 {
 916         if (CMD_ARGC != 0)
 917                 return ERROR_COMMAND_SYNTAX_ERROR;
 918
 919         static bool target_initialized = false;
 920         if (target_initialized)
 921         {
 922                 LOG_INFO("'target init' has already been called");
 923                 return ERROR_OK;
 924         }
 925         target_initialized = true;
 926
 927         LOG_DEBUG("Initializing targets...");
 928         return target_init(CMD_CTX);
 929 }
 930
 931 int target_register_event_callback(int (*callback)(struct target *target, enum target_event event, void *priv), void *priv)
 932 {
 933         struct target_event_callback **callbacks_p = &target_event_callbacks;
 934
 935         if (callback == NULL)
 936         {
 937                 return ERROR_INVALID_ARGUMENTS;
 938         }
 939
 940         if (*callbacks_p)
 941         {
 942                 while ((*callbacks_p)->next)
 943                         callbacks_p = &((*callbacks_p)->next);
 944                 callbacks_p = &((*callbacks_p)->next);
 945         }
 946
 947         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
 948         (*callbacks_p)->callback = callback;
 949         (*callbacks_p)->priv = priv;
 950         (*callbacks_p)->next = NULL;
 951
 952         return ERROR_OK;
 953 }
 954
 955 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 956 {
 957         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
 958         struct timeval now;
 959
 960         if (callback == NULL)
 961         {
 962                 return ERROR_INVALID_ARGUMENTS;
 963         }
 964
 965         if (*callbacks_p)
 966         {
 967                 while ((*callbacks_p)->next)
 968                         callbacks_p = &((*callbacks_p)->next);
 969                 callbacks_p = &((*callbacks_p)->next);
 970         }
 971
 972         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
 973         (*callbacks_p)->callback = callback;
 974         (*callbacks_p)->periodic = periodic;
 975         (*callbacks_p)->time_ms = time_ms;
 976
 977         gettimeofday(&now, NULL);
 978         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 979         time_ms -= (time_ms % 1000);
 980         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 981         if ((*callbacks_p)->when.tv_usec > 1000000)
 982         {
 983                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 984                 (*callbacks_p)->when.tv_sec += 1;
 985         }
 986
 987         (*callbacks_p)->priv = priv;
 988         (*callbacks_p)->next = NULL;
 989
 990         return ERROR_OK;
 991 }
 992
 993 int target_unregister_event_callback(int (*callback)(struct target *target, enum target_event event, void *priv), void *priv)
 994 {
 995         struct target_event_callback **p = &target_event_callbacks;
 996         struct target_event_callback *c = target_event_callbacks;
 997
 998         if (callback == NULL)
 999         {
1000                 return ERROR_INVALID_ARGUMENTS;
1001         }
1002
1003         while (c)
1004         {
1005                 struct target_event_callback *next = c->next;
1006                 if ((c->callback == callback) && (c->priv == priv))
1007                 {
1008                         *p = next;
1009                         free(c);
1010                         return ERROR_OK;
1011                 }
1012                 else
1013                         p = &(c->next);
1014                 c = next;
1015         }
1016
1017         return ERROR_OK;
1018 }
1019
1020 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1021 {
1022         struct target_timer_callback **p = &target_timer_callbacks;
1023         struct target_timer_callback *c = target_timer_callbacks;
1024
1025         if (callback == NULL)
1026         {
1027                 return ERROR_INVALID_ARGUMENTS;
1028         }
1029
1030         while (c)
1031         {
1032                 struct target_timer_callback *next = c->next;
1033                 if ((c->callback == callback) && (c->priv == priv))
1034                 {
1035                         *p = next;
1036                         free(c);
1037                         return ERROR_OK;
1038                 }
1039                 else
1040                         p = &(c->next);
1041                 c = next;
1042         }
1043
1044         return ERROR_OK;
1045 }
1046
1047 int target_call_event_callbacks(struct target *target, enum target_event event)
1048 {
1049         struct target_event_callback *callback = target_event_callbacks;
1050         struct target_event_callback *next_callback;
1051
1052         if (event == TARGET_EVENT_HALTED)
1053         {
1054                 /* execute early halted first */
1055                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1056         }
1057
1058         LOG_DEBUG("target event %i (%s)",
1059                           event,
1060                           Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1061
1062         target_handle_event(target, event);
1063
1064         while (callback)
1065         {
1066                 next_callback = callback->next;
1067                 callback->callback(target, event, callback->priv);
1068                 callback = next_callback;
1069         }
1070
1071         return ERROR_OK;
1072 }
1073
1074 static int target_timer_callback_periodic_restart(
1075                 struct target_timer_callback *cb, struct timeval *now)
1076 {
1077         int time_ms = cb->time_ms;
1078         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1079         time_ms -= (time_ms % 1000);
1080         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1081         if (cb->when.tv_usec > 1000000)
1082         {
1083                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1084                 cb->when.tv_sec += 1;
1085         }
1086         return ERROR_OK;
1087 }
1088
1089 static int target_call_timer_callback(struct target_timer_callback *cb,
1090                 struct timeval *now)
1091 {
1092         cb->callback(cb->priv);
1093
1094         if (cb->periodic)
1095                 return target_timer_callback_periodic_restart(cb, now);
1096
1097         return target_unregister_timer_callback(cb->callback, cb->priv);
1098 }
1099
1100 static int target_call_timer_callbacks_check_time(int checktime)
1101 {
1102         keep_alive();
1103
1104         struct timeval now;
1105         gettimeofday(&now, NULL);
1106
1107         struct target_timer_callback *callback = target_timer_callbacks;
1108         while (callback)
1109         {
1110                 // cleaning up may unregister and free this callback
1111                 struct target_timer_callback *next_callback = callback->next;
1112
1113                 bool call_it = callback->callback &&
1114                         ((!checktime && callback->periodic) ||
1115                           now.tv_sec > callback->when.tv_sec ||
1116                          (now.tv_sec == callback->when.tv_sec &&
1117                           now.tv_usec >= callback->when.tv_usec));
1118
1119                 if (call_it)
1120                 {
1121                         int retval = target_call_timer_callback(callback, &now);
1122                         if (retval != ERROR_OK)
1123                                 return retval;
1124                 }
1125
1126                 callback = next_callback;
1127         }
1128
1129         return ERROR_OK;
1130 }
1131
1132 int target_call_timer_callbacks(void)
1133 {
1134         return target_call_timer_callbacks_check_time(1);
1135 }
1136
1137 /* invoke periodic callbacks immediately */
1138 int target_call_timer_callbacks_now(void)
1139 {
1140         return target_call_timer_callbacks_check_time(0);
1141 }
1142
1143 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1144 {
1145         struct working_area *c = target->working_areas;
1146         struct working_area *new_wa = NULL;
1147
1148         /* Reevaluate working area address based on MMU state*/
1149         if (target->working_areas == NULL)
1150         {
1151                 int retval;
1152                 int enabled;
1153
1154                 retval = target->type->mmu(target, &enabled);
1155                 if (retval != ERROR_OK)
1156                 {
1157                         return retval;
1158                 }
1159
1160                 if (!enabled) {
1161                         if (target->working_area_phys_spec) {
1162                                 LOG_DEBUG("MMU disabled, using physical "
1163                                         "address for working memory 0x%08x",
1164                                         (unsigned)target->working_area_phys);
1165                                 target->working_area = target->working_area_phys;
1166                         } else {
1167                                 LOG_ERROR("No working memory available. "
1168                                         "Specify -work-area-phys to target.");
1169                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1170                         }
1171                 } else {
1172                         if (target->working_area_virt_spec) {
1173                                 LOG_DEBUG("MMU enabled, using virtual "
1174                                         "address for working memory 0x%08x",
1175                                         (unsigned)target->working_area_virt);
1176                                 target->working_area = target->working_area_virt;
1177                         } else {
1178                                 LOG_ERROR("No working memory available. "
1179                                         "Specify -work-area-virt to target.");
1180                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1181                         }
1182                 }
1183         }
1184
1185         /* only allocate multiples of 4 byte */
1186         if (size % 4)
1187         {
1188                 LOG_ERROR("BUG: code tried to allocate unaligned number of bytes (0x%08x), padding", ((unsigned)(size)));
1189                 size = (size + 3) & (~3);
1190         }
1191
1192         /* see if there's already a matching working area */
1193         while (c)
1194         {
1195                 if ((c->free) && (c->size == size))
1196                 {
1197                         new_wa = c;
1198                         break;
1199                 }
1200                 c = c->next;
1201         }
1202
1203         /* if not, allocate a new one */
1204         if (!new_wa)
1205         {
1206                 struct working_area **p = &target->working_areas;
1207                 uint32_t first_free = target->working_area;
1208                 uint32_t free_size = target->working_area_size;
1209
1210                 c = target->working_areas;
1211                 while (c)
1212                 {
1213                         first_free += c->size;
1214                         free_size -= c->size;
1215                         p = &c->next;
1216                         c = c->next;
1217                 }
1218
1219                 if (free_size < size)
1220                 {
1221                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1222                 }
1223
1224                 LOG_DEBUG("allocated new working area at address 0x%08x", (unsigned)first_free);
1225
1226                 new_wa = malloc(sizeof(struct working_area));
1227                 new_wa->next = NULL;
1228                 new_wa->size = size;
1229                 new_wa->address = first_free;
1230
1231                 if (target->backup_working_area)
1232                 {
1233                         int retval;
1234                         new_wa->backup = malloc(new_wa->size);
1235                         if ((retval = target_read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup)) != ERROR_OK)
1236                         {
1237                                 free(new_wa->backup);
1238                                 free(new_wa);
1239                                 return retval;
1240                         }
1241                 }
1242                 else
1243                 {
1244                         new_wa->backup = NULL;
1245                 }
1246
1247                 /* put new entry in list */
1248                 *p = new_wa;
1249         }
1250
1251         /* mark as used, and return the new (reused) area */
1252         new_wa->free = false;
1253         *area = new_wa;
1254
1255         /* user pointer */
1256         new_wa->user = area;
1257
1258         return ERROR_OK;
1259 }
1260
1261 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1262 {
1263         int retval;
1264
1265         retval = target_alloc_working_area_try(target, size, area);
1266         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1267         {
1268                 LOG_WARNING("not enough working area available(requested %u)", (unsigned)(size));
1269         }
1270         return retval;
1271
1272 }
1273
1274 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1275 {
1276         if (area->free)
1277                 return ERROR_OK;
1278
1279         if (restore && target->backup_working_area)
1280         {
1281                 int retval;
1282                 if ((retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup)) != ERROR_OK)
1283                         return retval;
1284         }
1285
1286         area->free = true;
1287
1288         /* mark user pointer invalid */
1289         *area->user = NULL;
1290         area->user = NULL;
1291
1292         return ERROR_OK;
1293 }
1294
1295 int target_free_working_area(struct target *target, struct working_area *area)
1296 {
1297         return target_free_working_area_restore(target, area, 1);
1298 }
1299
1300 /* free resources and restore memory, if restoring memory fails,
1301  * free up resources anyway
1302  */
1303 static void target_free_all_working_areas_restore(struct target *target, int restore)
1304 {
1305         struct working_area *c = target->working_areas;
1306
1307         while (c)
1308         {
1309                 struct working_area *next = c->next;
1310                 target_free_working_area_restore(target, c, restore);
1311
1312                 if (c->backup)
1313                         free(c->backup);
1314
1315                 free(c);
1316
1317                 c = next;
1318         }
1319
1320         target->working_areas = NULL;
1321 }
1322
1323 void target_free_all_working_areas(struct target *target)
1324 {
1325         target_free_all_working_areas_restore(target, 1);
1326 }
1327
1328 int target_arch_state(struct target *target)
1329 {
1330         int retval;
1331         if (target == NULL)
1332         {
1333                 LOG_USER("No target has been configured");
1334                 return ERROR_OK;
1335         }
1336
1337         LOG_USER("target state: %s", target_state_name( target ));
1338
1339         if (target->state != TARGET_HALTED)
1340                 return ERROR_OK;
1341
1342         retval = target->type->arch_state(target);
1343         return retval;
1344 }
1345
1346 /* Single aligned words are guaranteed to use 16 or 32 bit access
1347  * mode respectively, otherwise data is handled as quickly as
1348  * possible
1349  */
1350 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1351 {
1352         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1353                   (int)size, (unsigned)address);
1354
1355         if (!target_was_examined(target))
1356         {
1357                 LOG_ERROR("Target not examined yet");
1358                 return ERROR_FAIL;
1359         }
1360
1361         if (size == 0) {
1362                 return ERROR_OK;
1363         }
1364
1365         if ((address + size - 1) < address)
1366         {
1367                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1368                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1369                                   (unsigned)address,
1370                                   (unsigned)size);
1371                 return ERROR_FAIL;
1372         }
1373
1374         return target->type->write_buffer(target, address, size, buffer);
1375 }
1376
1377 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1378 {
1379         int retval = ERROR_OK;
1380
1381         if (((address % 2) == 0) && (size == 2))
1382         {
1383                 return target_write_memory(target, address, 2, 1, buffer);
1384         }
1385
1386         /* handle unaligned head bytes */
1387         if (address % 4)
1388         {
1389                 uint32_t unaligned = 4 - (address % 4);
1390
1391                 if (unaligned > size)
1392                         unaligned = size;
1393
1394                 if ((retval = target_write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1395                         return retval;
1396
1397                 buffer += unaligned;
1398                 address += unaligned;
1399                 size -= unaligned;
1400         }
1401
1402         /* handle aligned words */
1403         if (size >= 4)
1404         {
1405                 int aligned = size - (size % 4);
1406
1407                 /* use bulk writes above a certain limit. This may have to be changed */
1408                 if (aligned > 128)
1409                 {
1410                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
1411                                 return retval;
1412                 }
1413                 else
1414                 {
1415                         if ((retval = target_write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1416                                 return retval;
1417                 }
1418
1419                 buffer += aligned;
1420                 address += aligned;
1421                 size -= aligned;
1422         }
1423
1424         /* handle tail writes of less than 4 bytes */
1425         if (size > 0)
1426         {
1427                 if ((retval = target_write_memory(target, address, 1, size, buffer)) != ERROR_OK)
1428                         return retval;
1429         }
1430
1431         return retval;
1432 }
1433
1434 /* Single aligned words are guaranteed to use 16 or 32 bit access
1435  * mode respectively, otherwise data is handled as quickly as
1436  * possible
1437  */
1438 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1439 {
1440         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1441                           (int)size, (unsigned)address);
1442
1443         if (!target_was_examined(target))
1444         {
1445                 LOG_ERROR("Target not examined yet");
1446                 return ERROR_FAIL;
1447         }
1448
1449         if (size == 0) {
1450                 return ERROR_OK;
1451         }
1452
1453         if ((address + size - 1) < address)
1454         {
1455                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1456                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1457                                   address,
1458                                   size);
1459                 return ERROR_FAIL;
1460         }
1461
1462         return target->type->read_buffer(target, address, size, buffer);
1463 }
1464
1465 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1466 {
1467         int retval = ERROR_OK;
1468
1469         if (((address % 2) == 0) && (size == 2))
1470         {
1471                 return target_read_memory(target, address, 2, 1, buffer);
1472         }
1473
1474         /* handle unaligned head bytes */
1475         if (address % 4)
1476         {
1477                 uint32_t unaligned = 4 - (address % 4);
1478
1479                 if (unaligned > size)
1480                         unaligned = size;
1481
1482                 if ((retval = target_read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
1483                         return retval;
1484
1485                 buffer += unaligned;
1486                 address += unaligned;
1487                 size -= unaligned;
1488         }
1489
1490         /* handle aligned words */
1491         if (size >= 4)
1492         {
1493                 int aligned = size - (size % 4);
1494
1495                 if ((retval = target_read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
1496                         return retval;
1497
1498                 buffer += aligned;
1499                 address += aligned;
1500                 size -= aligned;
1501         }
1502
1503         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1504         if(size >=2)
1505         {
1506                 int aligned = size - (size%2);
1507                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1508                 if (retval != ERROR_OK)
1509                         return retval;
1510
1511                 buffer += aligned;
1512                 address += aligned;
1513                 size -= aligned;
1514         }
1515         /* handle tail writes of less than 4 bytes */
1516         if (size > 0)
1517         {
1518                 if ((retval = target_read_memory(target, address, 1, size, buffer)) != ERROR_OK)
1519                         return retval;
1520         }
1521
1522         return ERROR_OK;
1523 }
1524
1525 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1526 {
1527         uint8_t *buffer;
1528         int retval;
1529         uint32_t i;
1530         uint32_t checksum = 0;
1531         if (!target_was_examined(target))
1532         {
1533                 LOG_ERROR("Target not examined yet");
1534                 return ERROR_FAIL;
1535         }
1536
1537         if ((retval = target->type->checksum_memory(target, address,
1538                 size, &checksum)) != ERROR_OK)
1539         {
1540                 buffer = malloc(size);
1541                 if (buffer == NULL)
1542                 {
1543                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1544                         return ERROR_INVALID_ARGUMENTS;
1545                 }
1546                 retval = target_read_buffer(target, address, size, buffer);
1547                 if (retval != ERROR_OK)
1548                 {
1549                         free(buffer);
1550                         return retval;
1551                 }
1552
1553                 /* convert to target endianness */
1554                 for (i = 0; i < (size/sizeof(uint32_t)); i++)
1555                 {
1556                         uint32_t target_data;
1557                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1558                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1559                 }
1560
1561                 retval = image_calculate_checksum(buffer, size, &checksum);
1562                 free(buffer);
1563         }
1564
1565         *crc = checksum;
1566
1567         return retval;
1568 }
1569
1570 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1571 {
1572         int retval;
1573         if (!target_was_examined(target))
1574         {
1575                 LOG_ERROR("Target not examined yet");
1576                 return ERROR_FAIL;
1577         }
1578
1579         if (target->type->blank_check_memory == 0)
1580                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1581
1582         retval = target->type->blank_check_memory(target, address, size, blank);
1583
1584         return retval;
1585 }
1586
1587 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1588 {
1589         uint8_t value_buf[4];
1590         if (!target_was_examined(target))
1591         {
1592                 LOG_ERROR("Target not examined yet");
1593                 return ERROR_FAIL;
1594         }
1595
1596         int retval = target_read_memory(target, address, 4, 1, value_buf);
1597
1598         if (retval == ERROR_OK)
1599         {
1600                 *value = target_buffer_get_u32(target, value_buf);
1601                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1602                                   address,
1603                                   *value);
1604         }
1605         else
1606         {
1607                 *value = 0x0;
1608                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1609                                   address);
1610         }
1611
1612         return retval;
1613 }
1614
1615 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1616 {
1617         uint8_t value_buf[2];
1618         if (!target_was_examined(target))
1619         {
1620                 LOG_ERROR("Target not examined yet");
1621                 return ERROR_FAIL;
1622         }
1623
1624         int retval = target_read_memory(target, address, 2, 1, value_buf);
1625
1626         if (retval == ERROR_OK)
1627         {
1628                 *value = target_buffer_get_u16(target, value_buf);
1629                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1630                                   address,
1631                                   *value);
1632         }
1633         else
1634         {
1635                 *value = 0x0;
1636                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1637                                   address);
1638         }
1639
1640         return retval;
1641 }
1642
1643 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1644 {
1645         int retval = target_read_memory(target, address, 1, 1, value);
1646         if (!target_was_examined(target))
1647         {
1648                 LOG_ERROR("Target not examined yet");
1649                 return ERROR_FAIL;
1650         }
1651
1652         if (retval == ERROR_OK)
1653         {
1654                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1655                                   address,
1656                                   *value);
1657         }
1658         else
1659         {
1660                 *value = 0x0;
1661                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1662                                   address);
1663         }
1664
1665         return retval;
1666 }
1667
1668 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1669 {
1670         int retval;
1671         uint8_t value_buf[4];
1672         if (!target_was_examined(target))
1673         {
1674                 LOG_ERROR("Target not examined yet");
1675                 return ERROR_FAIL;
1676         }
1677
1678         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1679                           address,
1680                           value);
1681
1682         target_buffer_set_u32(target, value_buf, value);
1683         if ((retval = target_write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1684         {
1685                 LOG_DEBUG("failed: %i", retval);
1686         }
1687
1688         return retval;
1689 }
1690
1691 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
1692 {
1693         int retval;
1694         uint8_t value_buf[2];
1695         if (!target_was_examined(target))
1696         {
1697                 LOG_ERROR("Target not examined yet");
1698                 return ERROR_FAIL;
1699         }
1700
1701         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
1702                           address,
1703                           value);
1704
1705         target_buffer_set_u16(target, value_buf, value);
1706         if ((retval = target_write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1707         {
1708                 LOG_DEBUG("failed: %i", retval);
1709         }
1710
1711         return retval;
1712 }
1713
1714 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
1715 {
1716         int retval;
1717         if (!target_was_examined(target))
1718         {
1719                 LOG_ERROR("Target not examined yet");
1720                 return ERROR_FAIL;
1721         }
1722
1723         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1724                           address, value);
1725
1726         if ((retval = target_write_memory(target, address, 1, 1, &value)) != ERROR_OK)
1727         {
1728                 LOG_DEBUG("failed: %i", retval);
1729         }
1730
1731         return retval;
1732 }
1733
1734 COMMAND_HANDLER(handle_targets_command)
1735 {
1736         struct target *target = all_targets;
1737
1738         if (CMD_ARGC == 1)
1739         {
1740                 target = get_target(CMD_ARGV[0]);
1741                 if (target == NULL) {
1742                         command_print(CMD_CTX,"Target: %s is unknown, try one of:\n", CMD_ARGV[0]);
1743                         goto DumpTargets;
1744                 }
1745                 if (!target->tap->enabled) {
1746                         command_print(CMD_CTX,"Target: TAP %s is disabled, "
1747                                         "can't be the current target\n",
1748                                         target->tap->dotted_name);
1749                         return ERROR_FAIL;
1750                 }
1751
1752                 CMD_CTX->current_target = target->target_number;
1753                 return ERROR_OK;
1754         }
1755 DumpTargets:
1756
1757         target = all_targets;
1758         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
1759         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
1760         while (target)
1761         {
1762                 const char *state;
1763                 char marker = ' ';
1764
1765                 if (target->tap->enabled)
1766                         state = target_state_name( target );
1767                 else
1768                         state = "tap-disabled";
1769
1770                 if (CMD_CTX->current_target == target->target_number)
1771                         marker = '*';
1772
1773                 /* keep columns lined up to match the headers above */
1774                 command_print(CMD_CTX, "%2d%c %-18s %-10s %-6s %-18s %s",
1775                                           target->target_number,
1776                                           marker,
1777                                           target_name(target),
1778                                           target_type_name(target),
1779                                           Jim_Nvp_value2name_simple(nvp_target_endian,
1780                                                                 target->endianness)->name,
1781                                           target->tap->dotted_name,
1782                                           state);
1783                 target = target->next;
1784         }
1785
1786         return ERROR_OK;
1787 }
1788
1789 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
1790
1791 static int powerDropout;
1792 static int srstAsserted;
1793
1794 static int runPowerRestore;
1795 static int runPowerDropout;
1796 static int runSrstAsserted;
1797 static int runSrstDeasserted;
1798
1799 static int sense_handler(void)
1800 {
1801         static int prevSrstAsserted = 0;
1802         static int prevPowerdropout = 0;
1803
1804         int retval;
1805         if ((retval = jtag_power_dropout(&powerDropout)) != ERROR_OK)
1806                 return retval;
1807
1808         int powerRestored;
1809         powerRestored = prevPowerdropout && !powerDropout;
1810         if (powerRestored)
1811         {
1812                 runPowerRestore = 1;
1813         }
1814
1815         long long current = timeval_ms();
1816         static long long lastPower = 0;
1817         int waitMore = lastPower + 2000 > current;
1818         if (powerDropout && !waitMore)
1819         {
1820                 runPowerDropout = 1;
1821                 lastPower = current;
1822         }
1823
1824         if ((retval = jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
1825                 return retval;
1826
1827         int srstDeasserted;
1828         srstDeasserted = prevSrstAsserted && !srstAsserted;
1829
1830         static long long lastSrst = 0;
1831         waitMore = lastSrst + 2000 > current;
1832         if (srstDeasserted && !waitMore)
1833         {
1834                 runSrstDeasserted = 1;
1835                 lastSrst = current;
1836         }
1837
1838         if (!prevSrstAsserted && srstAsserted)
1839         {
1840                 runSrstAsserted = 1;
1841         }
1842
1843         prevSrstAsserted = srstAsserted;
1844         prevPowerdropout = powerDropout;
1845
1846         if (srstDeasserted || powerRestored)
1847         {
1848                 /* Other than logging the event we can't do anything here.
1849                  * Issuing a reset is a particularly bad idea as we might
1850                  * be inside a reset already.
1851                  */
1852         }
1853
1854         return ERROR_OK;
1855 }
1856
1857 static int backoff_times = 0;
1858 static int backoff_count = 0;
1859
1860 /* process target state changes */
1861 static int handle_target(void *priv)
1862 {
1863         Jim_Interp *interp = (Jim_Interp *)priv;
1864         int retval = ERROR_OK;
1865
1866         if (!is_jtag_poll_safe())
1867         {
1868                 /* polling is disabled currently */
1869                 return ERROR_OK;
1870         }
1871
1872         /* we do not want to recurse here... */
1873         static int recursive = 0;
1874         if (! recursive)
1875         {
1876                 recursive = 1;
1877                 sense_handler();
1878                 /* danger! running these procedures can trigger srst assertions and power dropouts.
1879                  * We need to avoid an infinite loop/recursion here and we do that by
1880                  * clearing the flags after running these events.
1881                  */
1882                 int did_something = 0;
1883                 if (runSrstAsserted)
1884                 {
1885                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
1886                         Jim_Eval(interp, "srst_asserted");
1887                         did_something = 1;
1888                 }
1889                 if (runSrstDeasserted)
1890                 {
1891                         Jim_Eval(interp, "srst_deasserted");
1892                         did_something = 1;
1893                 }
1894                 if (runPowerDropout)
1895                 {
1896                         LOG_INFO("Power dropout detected, running power_dropout proc.");
1897                         Jim_Eval(interp, "power_dropout");
1898                         did_something = 1;
1899                 }
1900                 if (runPowerRestore)
1901                 {
1902                         Jim_Eval(interp, "power_restore");
1903                         did_something = 1;
1904                 }
1905
1906                 if (did_something)
1907                 {
1908                         /* clear detect flags */
1909                         sense_handler();
1910                 }
1911
1912                 /* clear action flags */
1913
1914                 runSrstAsserted = 0;
1915                 runSrstDeasserted = 0;
1916                 runPowerRestore = 0;
1917                 runPowerDropout = 0;
1918
1919                 recursive = 0;
1920         }
1921
1922         if (backoff_times > backoff_count)
1923         {
1924                 /* do not poll this time as we failed previously */
1925                 backoff_count++;
1926                 return ERROR_OK;
1927         }
1928         backoff_count = 0;
1929
1930         /* Poll targets for state changes unless that's globally disabled.
1931          * Skip targets that are currently disabled.
1932          */
1933         for (struct target *target = all_targets;
1934                         is_jtag_poll_safe() && target;
1935                         target = target->next)
1936         {
1937                 if (!target->tap->enabled)
1938                         continue;
1939
1940                 /* only poll target if we've got power and srst isn't asserted */
1941                 if (!powerDropout && !srstAsserted)
1942                 {
1943                         /* polling may fail silently until the target has been examined */
1944                         if ((retval = target_poll(target)) != ERROR_OK)
1945                         {
1946                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
1947                                 if (backoff_times * polling_interval < 5000)
1948                                 {
1949                                         backoff_times *= 2;
1950                                         backoff_times++;
1951                                 }
1952                                 LOG_USER("Polling target failed, GDB will be halted. Polling again in %dms", backoff_times * polling_interval);
1953
1954                                 /* Tell GDB to halt the debugger. This allows the user to
1955                                  * run monitor commands to handle the situation.
1956                                  */
1957                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1958                                 return retval;
1959                         }
1960                         /* Since we succeeded, we reset backoff count */
1961                         if (backoff_times > 0)
1962                         {
1963                                 LOG_USER("Polling succeeded again");
1964                         }
1965                         backoff_times = 0;
1966                 }
1967         }
1968
1969         return retval;
1970 }
1971
1972 COMMAND_HANDLER(handle_reg_command)
1973 {
1974         struct target *target;
1975         struct reg *reg = NULL;
1976         unsigned count = 0;
1977         char *value;
1978
1979         LOG_DEBUG("-");
1980
1981         target = get_current_target(CMD_CTX);
1982
1983         /* list all available registers for the current target */
1984         if (CMD_ARGC == 0)
1985         {
1986                 struct reg_cache *cache = target->reg_cache;
1987
1988                 count = 0;
1989                 while (cache)
1990                 {
1991                         unsigned i;
1992
1993                         command_print(CMD_CTX, "===== %s", cache->name);
1994
1995                         for (i = 0, reg = cache->reg_list;
1996                                         i < cache->num_regs;
1997                                         i++, reg++, count++)
1998                         {
1999                                 /* only print cached values if they are valid */
2000                                 if (reg->valid) {
2001                                         value = buf_to_str(reg->value,
2002                                                         reg->size, 16);
2003                                         command_print(CMD_CTX,
2004                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2005                                                         count, reg->name,
2006                                                         reg->size, value,
2007                                                         reg->dirty
2008                                                                 ? " (dirty)"
2009                                                                 : "");
2010                                         free(value);
2011                                 } else {
2012                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2013                                                           count, reg->name,
2014                                                           reg->size) ;
2015                                 }
2016                         }
2017                         cache = cache->next;
2018                 }
2019
2020                 return ERROR_OK;
2021         }
2022
2023         /* access a single register by its ordinal number */
2024         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9'))
2025         {
2026                 unsigned num;
2027                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2028
2029                 struct reg_cache *cache = target->reg_cache;
2030                 count = 0;
2031                 while (cache)
2032                 {
2033                         unsigned i;
2034                         for (i = 0; i < cache->num_regs; i++)
2035                         {
2036                                 if (count++ == num)
2037                                 {
2038                                         reg = &cache->reg_list[i];
2039                                         break;
2040                                 }
2041                         }
2042                         if (reg)
2043                                 break;
2044                         cache = cache->next;
2045                 }
2046
2047                 if (!reg)
2048                 {
2049                         command_print(CMD_CTX, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
2050                         return ERROR_OK;
2051                 }
2052         } else /* access a single register by its name */
2053         {
2054                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2055
2056                 if (!reg)
2057                 {
2058                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2059                         return ERROR_OK;
2060                 }
2061         }
2062
2063         /* display a register */
2064         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0') && (CMD_ARGV[1][0] <= '9'))))
2065         {
2066                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2067                         reg->valid = 0;
2068
2069                 if (reg->valid == 0)
2070                 {
2071                         reg->type->get(reg);
2072                 }
2073                 value = buf_to_str(reg->value, reg->size, 16);
2074                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2075                 free(value);
2076                 return ERROR_OK;
2077         }
2078
2079         /* set register value */
2080         if (CMD_ARGC == 2)
2081         {
2082                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2083                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2084
2085                 reg->type->set(reg, buf);
2086
2087                 value = buf_to_str(reg->value, reg->size, 16);
2088                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2089                 free(value);
2090
2091                 free(buf);
2092
2093                 return ERROR_OK;
2094         }
2095
2096         command_print(CMD_CTX, "usage: reg <#|name> [value]");
2097
2098         return ERROR_OK;
2099 }
2100
2101 COMMAND_HANDLER(handle_poll_command)
2102 {
2103         int retval = ERROR_OK;
2104         struct target *target = get_current_target(CMD_CTX);
2105
2106         if (CMD_ARGC == 0)
2107         {
2108                 command_print(CMD_CTX, "background polling: %s",
2109                                 jtag_poll_get_enabled() ? "on" : "off");
2110                 command_print(CMD_CTX, "TAP: %s (%s)",
2111                                 target->tap->dotted_name,
2112                                 target->tap->enabled ? "enabled" : "disabled");
2113                 if (!target->tap->enabled)
2114                         return ERROR_OK;
2115                 if ((retval = target_poll(target)) != ERROR_OK)
2116                         return retval;
2117                 if ((retval = target_arch_state(target)) != ERROR_OK)
2118                         return retval;
2119         }
2120         else if (CMD_ARGC == 1)
2121         {
2122                 bool enable;
2123                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2124                 jtag_poll_set_enabled(enable);
2125         }
2126         else
2127         {
2128                 return ERROR_COMMAND_SYNTAX_ERROR;
2129         }
2130
2131         return retval;
2132 }
2133
2134 COMMAND_HANDLER(handle_wait_halt_command)
2135 {
2136         if (CMD_ARGC > 1)
2137                 return ERROR_COMMAND_SYNTAX_ERROR;
2138
2139         unsigned ms = 5000;
2140         if (1 == CMD_ARGC)
2141         {
2142                 int retval = parse_uint(CMD_ARGV[0], &ms);
2143                 if (ERROR_OK != retval)
2144                 {
2145                         command_print(CMD_CTX, "usage: %s [seconds]", CMD_NAME);
2146                         return ERROR_COMMAND_SYNTAX_ERROR;
2147                 }
2148                 // convert seconds (given) to milliseconds (needed)
2149                 ms *= 1000;
2150         }
2151
2152         struct target *target = get_current_target(CMD_CTX);
2153         return target_wait_state(target, TARGET_HALTED, ms);
2154 }
2155
2156 /* wait for target state to change. The trick here is to have a low
2157  * latency for short waits and not to suck up all the CPU time
2158  * on longer waits.
2159  *
2160  * After 500ms, keep_alive() is invoked
2161  */
2162 int target_wait_state(struct target *target, enum target_state state, int ms)
2163 {
2164         int retval;
2165         long long then = 0, cur;
2166         int once = 1;
2167
2168         for (;;)
2169         {
2170                 if ((retval = target_poll(target)) != ERROR_OK)
2171                         return retval;
2172                 if (target->state == state)
2173                 {
2174                         break;
2175                 }
2176                 cur = timeval_ms();
2177                 if (once)
2178                 {
2179                         once = 0;
2180                         then = timeval_ms();
2181                         LOG_DEBUG("waiting for target %s...",
2182                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2183                 }
2184
2185                 if (cur-then > 500)
2186                 {
2187                         keep_alive();
2188                 }
2189
2190                 if ((cur-then) > ms)
2191                 {
2192                         LOG_ERROR("timed out while waiting for target %s",
2193                                 Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
2194                         return ERROR_FAIL;
2195                 }
2196         }
2197
2198         return ERROR_OK;
2199 }
2200
2201 COMMAND_HANDLER(handle_halt_command)
2202 {
2203         LOG_DEBUG("-");
2204
2205         struct target *target = get_current_target(CMD_CTX);
2206         int retval = target_halt(target);
2207         if (ERROR_OK != retval)
2208                 return retval;
2209
2210         if (CMD_ARGC == 1)
2211         {
2212                 unsigned wait_local;
2213                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2214                 if (ERROR_OK != retval)
2215                         return ERROR_COMMAND_SYNTAX_ERROR;
2216                 if (!wait_local)
2217                         return ERROR_OK;
2218         }
2219
2220         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2221 }
2222
2223 COMMAND_HANDLER(handle_soft_reset_halt_command)
2224 {
2225         struct target *target = get_current_target(CMD_CTX);
2226
2227         LOG_USER("requesting target halt and executing a soft reset");
2228
2229         target->type->soft_reset_halt(target);
2230
2231         return ERROR_OK;
2232 }
2233
2234 COMMAND_HANDLER(handle_reset_command)
2235 {
2236         if (CMD_ARGC > 1)
2237                 return ERROR_COMMAND_SYNTAX_ERROR;
2238
2239         enum target_reset_mode reset_mode = RESET_RUN;
2240         if (CMD_ARGC == 1)
2241         {
2242                 const Jim_Nvp *n;
2243                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2244                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN)) {
2245                         return ERROR_COMMAND_SYNTAX_ERROR;
2246                 }
2247                 reset_mode = n->value;
2248         }
2249
2250         /* reset *all* targets */
2251         return target_process_reset(CMD_CTX, reset_mode);
2252 }
2253
2254
2255 COMMAND_HANDLER(handle_resume_command)
2256 {
2257         int current = 1;
2258         if (CMD_ARGC > 1)
2259                 return ERROR_COMMAND_SYNTAX_ERROR;
2260
2261         struct target *target = get_current_target(CMD_CTX);
2262         target_handle_event(target, TARGET_EVENT_OLD_pre_resume);
2263
2264         /* with no CMD_ARGV, resume from current pc, addr = 0,
2265          * with one arguments, addr = CMD_ARGV[0],
2266          * handle breakpoints, not debugging */
2267         uint32_t addr = 0;
2268         if (CMD_ARGC == 1)
2269         {
2270                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2271                 current = 0;
2272         }
2273
2274         return target_resume(target, current, addr, 1, 0);
2275 }
2276
2277 COMMAND_HANDLER(handle_step_command)
2278 {
2279         if (CMD_ARGC > 1)
2280                 return ERROR_COMMAND_SYNTAX_ERROR;
2281
2282         LOG_DEBUG("-");
2283
2284         /* with no CMD_ARGV, step from current pc, addr = 0,
2285          * with one argument addr = CMD_ARGV[0],
2286          * handle breakpoints, debugging */
2287         uint32_t addr = 0;
2288         int current_pc = 1;
2289         if (CMD_ARGC == 1)
2290         {
2291                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2292                 current_pc = 0;
2293         }
2294
2295         struct target *target = get_current_target(CMD_CTX);
2296
2297         return target->type->step(target, current_pc, addr, 1);
2298 }
2299
2300 static void handle_md_output(struct command_context *cmd_ctx,
2301                 struct target *target, uint32_t address, unsigned size,
2302                 unsigned count, const uint8_t *buffer)
2303 {
2304         const unsigned line_bytecnt = 32;
2305         unsigned line_modulo = line_bytecnt / size;
2306
2307         char output[line_bytecnt * 4 + 1];
2308         unsigned output_len = 0;
2309
2310         const char *value_fmt;
2311         switch (size) {
2312         case 4: value_fmt = "%8.8x "; break;
2313         case 2: value_fmt = "%4.4x "; break;
2314         case 1: value_fmt = "%2.2x "; break;
2315         default:
2316                 /* "can't happen", caller checked */
2317                 LOG_ERROR("invalid memory read size: %u", size);
2318                 return;
2319         }
2320
2321         for (unsigned i = 0; i < count; i++)
2322         {
2323                 if (i % line_modulo == 0)
2324                 {
2325                         output_len += snprintf(output + output_len,
2326                                         sizeof(output) - output_len,
2327                                         "0x%8.8x: ",
2328                                         (unsigned)(address + (i*size)));
2329                 }
2330
2331                 uint32_t value = 0;
2332                 const uint8_t *value_ptr = buffer + i * size;
2333                 switch (size) {
2334                 case 4: value = target_buffer_get_u32(target, value_ptr); break;
2335                 case 2: value = target_buffer_get_u16(target, value_ptr); break;
2336                 case 1: value = *value_ptr;
2337                 }
2338                 output_len += snprintf(output + output_len,
2339                                 sizeof(output) - output_len,
2340                                 value_fmt, value);
2341
2342                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1))
2343                 {
2344                         command_print(cmd_ctx, "%s", output);
2345                         output_len = 0;
2346                 }
2347         }
2348 }
2349
2350 COMMAND_HANDLER(handle_md_command)
2351 {
2352         if (CMD_ARGC < 1)
2353                 return ERROR_COMMAND_SYNTAX_ERROR;
2354
2355         unsigned size = 0;
2356         switch (CMD_NAME[2]) {
2357         case 'w': size = 4; break;
2358         case 'h': size = 2; break;
2359         case 'b': size = 1; break;
2360         default: return ERROR_COMMAND_SYNTAX_ERROR;
2361         }
2362
2363         bool physical=strcmp(CMD_ARGV[0], "phys")==0;
2364         int (*fn)(struct target *target,
2365                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2366         if (physical)
2367         {
2368                 CMD_ARGC--;
2369                 CMD_ARGV++;
2370                 fn=target_read_phys_memory;
2371         } else
2372         {
2373                 fn=target_read_memory;
2374         }
2375         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2376         {
2377                 return ERROR_COMMAND_SYNTAX_ERROR;
2378         }
2379
2380         uint32_t address;
2381         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2382
2383         unsigned count = 1;
2384         if (CMD_ARGC == 2)
2385                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2386
2387         uint8_t *buffer = calloc(count, size);
2388
2389         struct target *target = get_current_target(CMD_CTX);
2390         int retval = fn(target, address, size, count, buffer);
2391         if (ERROR_OK == retval)
2392                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2393
2394         free(buffer);
2395
2396         return retval;
2397 }
2398
2399 typedef int (*target_write_fn)(struct target *target,
2400                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2401
2402 static int target_write_memory_fast(struct target *target,
2403                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2404 {
2405         return target_write_buffer(target, address, size * count, buffer);
2406 }
2407
2408 static int target_fill_mem(struct target *target,
2409                 uint32_t address,
2410                 target_write_fn fn,
2411                 unsigned data_size,
2412                 /* value */
2413                 uint32_t b,
2414                 /* count */
2415                 unsigned c)
2416 {
2417         /* We have to write in reasonably large chunks to be able
2418          * to fill large memory areas with any sane speed */
2419         const unsigned chunk_size = 16384;
2420         uint8_t *target_buf = malloc(chunk_size * data_size);
2421         if (target_buf == NULL)
2422         {
2423                 LOG_ERROR("Out of memory");
2424                 return ERROR_FAIL;
2425         }
2426
2427         for (unsigned i = 0; i < chunk_size; i ++)
2428         {
2429                 switch (data_size)
2430                 {
2431                 case 4:
2432                         target_buffer_set_u32(target, target_buf + i*data_size, b);
2433                         break;
2434                 case 2:
2435                         target_buffer_set_u16(target, target_buf + i*data_size, b);
2436                         break;
2437                 case 1:
2438                         target_buffer_set_u8(target, target_buf + i*data_size, b);
2439                         break;
2440                 default:
2441                         exit(-1);
2442                 }
2443         }
2444
2445         int retval = ERROR_OK;
2446
2447         for (unsigned x = 0; x < c; x += chunk_size)
2448         {
2449                 unsigned current;
2450                 current = c - x;
2451                 if (current > chunk_size)
2452                 {
2453                         current = chunk_size;
2454                 }
2455                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2456                 if (retval != ERROR_OK)
2457                 {
2458                         break;
2459                 }
2460                 /* avoid GDB timeouts */
2461                 keep_alive();
2462         }
2463         free(target_buf);
2464
2465         return retval;
2466 }
2467
2468
2469 COMMAND_HANDLER(handle_mw_command)
2470 {
2471         if (CMD_ARGC < 2)
2472         {
2473                 return ERROR_COMMAND_SYNTAX_ERROR;
2474         }
2475         bool physical=strcmp(CMD_ARGV[0], "phys")==0;
2476         target_write_fn fn;
2477         if (physical)
2478         {
2479                 CMD_ARGC--;
2480                 CMD_ARGV++;
2481                 fn=target_write_phys_memory;
2482         } else
2483         {
2484                 fn = target_write_memory_fast;
2485         }
2486         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2487                 return ERROR_COMMAND_SYNTAX_ERROR;
2488
2489         uint32_t address;
2490         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2491
2492         uint32_t value;
2493         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2494
2495         unsigned count = 1;
2496         if (CMD_ARGC == 3)
2497                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2498
2499         struct target *target = get_current_target(CMD_CTX);
2500         unsigned wordsize;
2501         switch (CMD_NAME[2])
2502         {
2503                 case 'w':
2504                         wordsize = 4;
2505                         break;
2506                 case 'h':
2507                         wordsize = 2;
2508                         break;
2509                 case 'b':
2510                         wordsize = 1;
2511                         break;
2512                 default:
2513                         return ERROR_COMMAND_SYNTAX_ERROR;
2514         }
2515
2516         return target_fill_mem(target, address, fn, wordsize, value, count);
2517 }
2518
2519 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2520                 uint32_t *min_address, uint32_t *max_address)
2521 {
2522         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2523                 return ERROR_COMMAND_SYNTAX_ERROR;
2524
2525         /* a base address isn't always necessary,
2526          * default to 0x0 (i.e. don't relocate) */
2527         if (CMD_ARGC >= 2)
2528         {
2529                 uint32_t addr;
2530                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2531                 image->base_address = addr;
2532                 image->base_address_set = 1;
2533         }
2534         else
2535                 image->base_address_set = 0;
2536
2537         image->start_address_set = 0;
2538
2539         if (CMD_ARGC >= 4)
2540         {
2541                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2542         }
2543         if (CMD_ARGC == 5)
2544         {
2545                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2546                 // use size (given) to find max (required)
2547                 *max_address += *min_address;
2548         }
2549
2550         if (*min_address > *max_address)
2551                 return ERROR_COMMAND_SYNTAX_ERROR;
2552
2553         return ERROR_OK;
2554 }
2555
2556 COMMAND_HANDLER(handle_load_image_command)
2557 {
2558         uint8_t *buffer;
2559         size_t buf_cnt;
2560         uint32_t image_size;
2561         uint32_t min_address = 0;
2562         uint32_t max_address = 0xffffffff;
2563         int i;
2564         struct image image;
2565
2566         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2567                         &image, &min_address, &max_address);
2568         if (ERROR_OK != retval)
2569                 return retval;
2570
2571         struct target *target = get_current_target(CMD_CTX);
2572
2573         struct duration bench;
2574         duration_start(&bench);
2575
2576         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2577         {
2578                 return ERROR_OK;
2579         }
2580
2581         image_size = 0x0;
2582         retval = ERROR_OK;
2583         for (i = 0; i < image.num_sections; i++)
2584         {
2585                 buffer = malloc(image.sections[i].size);
2586                 if (buffer == NULL)
2587                 {
2588                         command_print(CMD_CTX,
2589                                                   "error allocating buffer for section (%d bytes)",
2590                                                   (int)(image.sections[i].size));
2591                         break;
2592                 }
2593
2594                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2595                 {
2596                         free(buffer);
2597                         break;
2598                 }
2599
2600                 uint32_t offset = 0;
2601                 uint32_t length = buf_cnt;
2602
2603                 /* DANGER!!! beware of unsigned comparision here!!! */
2604
2605                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
2606                                 (image.sections[i].base_address < max_address))
2607                 {
2608                         if (image.sections[i].base_address < min_address)
2609                         {
2610                                 /* clip addresses below */
2611                                 offset += min_address-image.sections[i].base_address;
2612                                 length -= offset;
2613                         }
2614
2615                         if (image.sections[i].base_address + buf_cnt > max_address)
2616                         {
2617                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2618                         }
2619
2620                         if ((retval = target_write_buffer(target, image.sections[i].base_address + offset, length, buffer + offset)) != ERROR_OK)
2621                         {
2622                                 free(buffer);
2623                                 break;
2624                         }
2625                         image_size += length;
2626                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2627                                                   (unsigned int)length,
2628                                                   image.sections[i].base_address + offset);
2629                 }
2630
2631                 free(buffer);
2632         }
2633
2634         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2635         {
2636                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2637                                 "in %fs (%0.3f KiB/s)", image_size,
2638                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2639         }
2640
2641         image_close(&image);
2642
2643         return retval;
2644
2645 }
2646
2647 COMMAND_HANDLER(handle_dump_image_command)
2648 {
2649         struct fileio fileio;
2650         uint8_t buffer[560];
2651         int retval, retvaltemp;
2652         uint32_t address, size;
2653         struct duration bench;
2654         struct target *target = get_current_target(CMD_CTX);
2655
2656         if (CMD_ARGC != 3)
2657                 return ERROR_COMMAND_SYNTAX_ERROR;
2658
2659         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2660         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2661
2662         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2663         if (retval != ERROR_OK)
2664                 return retval;
2665
2666         duration_start(&bench);
2667
2668         retval = ERROR_OK;
2669         while (size > 0)
2670         {
2671                 size_t size_written;
2672                 uint32_t this_run_size = (size > 560) ? 560 : size;
2673                 retval = target_read_buffer(target, address, this_run_size, buffer);
2674                 if (retval != ERROR_OK)
2675                 {
2676                         break;
2677                 }
2678
2679                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2680                 if (retval != ERROR_OK)
2681                 {
2682                         break;
2683                 }
2684
2685                 size -= this_run_size;
2686                 address += this_run_size;
2687         }
2688
2689         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2690         {
2691                 int filesize;
2692                 retval = fileio_size(&fileio, &filesize);
2693                 if (retval != ERROR_OK)
2694                         return retval;
2695                 command_print(CMD_CTX,
2696                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2697                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2698         }
2699
2700         if ((retvaltemp = fileio_close(&fileio)) != ERROR_OK)
2701                 return retvaltemp;
2702
2703         return retval;
2704 }
2705
2706 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2707 {
2708         uint8_t *buffer;
2709         size_t buf_cnt;
2710         uint32_t image_size;
2711         int i;
2712         int retval;
2713         uint32_t checksum = 0;
2714         uint32_t mem_checksum = 0;
2715
2716         struct image image;
2717
2718         struct target *target = get_current_target(CMD_CTX);
2719
2720         if (CMD_ARGC < 1)
2721         {
2722                 return ERROR_COMMAND_SYNTAX_ERROR;
2723         }
2724
2725         if (!target)
2726         {
2727                 LOG_ERROR("no target selected");
2728                 return ERROR_FAIL;
2729         }
2730
2731         struct duration bench;
2732         duration_start(&bench);
2733
2734         if (CMD_ARGC >= 2)
2735         {
2736                 uint32_t addr;
2737                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2738                 image.base_address = addr;
2739                 image.base_address_set = 1;
2740         }
2741         else
2742         {
2743                 image.base_address_set = 0;
2744                 image.base_address = 0x0;
2745         }
2746
2747         image.start_address_set = 0;
2748
2749         if ((retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL)) != ERROR_OK)
2750         {
2751                 return retval;
2752         }
2753
2754         image_size = 0x0;
2755         int diffs = 0;
2756         retval = ERROR_OK;
2757         for (i = 0; i < image.num_sections; i++)
2758         {
2759                 buffer = malloc(image.sections[i].size);
2760                 if (buffer == NULL)
2761                 {
2762                         command_print(CMD_CTX,
2763                                                   "error allocating buffer for section (%d bytes)",
2764                                                   (int)(image.sections[i].size));
2765                         break;
2766                 }
2767                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2768                 {
2769                         free(buffer);
2770                         break;
2771                 }
2772
2773                 if (verify)
2774                 {
2775                         /* calculate checksum of image */
2776                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
2777                         if (retval != ERROR_OK)
2778                         {
2779                                 free(buffer);
2780                                 break;
2781                         }
2782
2783                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2784                         if (retval != ERROR_OK)
2785                         {
2786                                 free(buffer);
2787                                 break;
2788                         }
2789
2790                         if (checksum != mem_checksum)
2791                         {
2792                                 /* failed crc checksum, fall back to a binary compare */
2793                                 uint8_t *data;
2794
2795                                 if (diffs == 0)
2796                                 {
2797                                         LOG_ERROR("checksum mismatch - attempting binary compare");
2798                                 }
2799
2800                                 data = (uint8_t*)malloc(buf_cnt);
2801
2802                                 /* Can we use 32bit word accesses? */
2803                                 int size = 1;
2804                                 int count = buf_cnt;
2805                                 if ((count % 4) == 0)
2806                                 {
2807                                         size *= 4;
2808                                         count /= 4;
2809                                 }
2810                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
2811                                 if (retval == ERROR_OK)
2812                                 {
2813                                         uint32_t t;
2814                                         for (t = 0; t < buf_cnt; t++)
2815                                         {
2816                                                 if (data[t] != buffer[t])
2817                                                 {
2818                                                         command_print(CMD_CTX,
2819                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
2820                                                                                   diffs,
2821                                                                                   (unsigned)(t + image.sections[i].base_address),
2822                                                                                   data[t],
2823                                                                                   buffer[t]);
2824                                                         if (diffs++ >= 127)
2825                                                         {
2826                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
2827                                                                 free(data);
2828                                                                 free(buffer);
2829                                                                 goto done;
2830                                                         }
2831                                                 }
2832                                                 keep_alive();
2833                                         }
2834                                 }
2835                                 free(data);
2836                         }
2837                 } else
2838                 {
2839                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
2840                                                   image.sections[i].base_address,
2841                                                   buf_cnt);
2842                 }
2843
2844                 free(buffer);
2845                 image_size += buf_cnt;
2846         }
2847         if (diffs > 0)
2848         {
2849                 command_print(CMD_CTX, "No more differences found.");
2850         }
2851 done:
2852         if (diffs > 0)
2853         {
2854                 retval = ERROR_FAIL;
2855         }
2856         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
2857         {
2858                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
2859                                 "in %fs (%0.3f KiB/s)", image_size,
2860                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2861         }
2862
2863         image_close(&image);
2864
2865         return retval;
2866 }
2867
2868 COMMAND_HANDLER(handle_verify_image_command)
2869 {
2870         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
2871 }
2872
2873 COMMAND_HANDLER(handle_test_image_command)
2874 {
2875         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
2876 }
2877
2878 static int handle_bp_command_list(struct command_context *cmd_ctx)
2879 {
2880         struct target *target = get_current_target(cmd_ctx);
2881         struct breakpoint *breakpoint = target->breakpoints;
2882         while (breakpoint)
2883         {
2884                 if (breakpoint->type == BKPT_SOFT)
2885                 {
2886                         char* buf = buf_to_str(breakpoint->orig_instr,
2887                                         breakpoint->length, 16);
2888                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
2889                                         breakpoint->address,
2890                                         breakpoint->length,
2891                                         breakpoint->set, buf);
2892                         free(buf);
2893                 }
2894                 else
2895                 {
2896                         command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i",
2897                                                   breakpoint->address,
2898                                                   breakpoint->length, breakpoint->set);
2899                 }
2900
2901                 breakpoint = breakpoint->next;
2902         }
2903         return ERROR_OK;
2904 }
2905
2906 static int handle_bp_command_set(struct command_context *cmd_ctx,
2907                 uint32_t addr, uint32_t length, int hw)
2908 {
2909         struct target *target = get_current_target(cmd_ctx);
2910         int retval = breakpoint_add(target, addr, length, hw);
2911         if (ERROR_OK == retval)
2912                 command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
2913         else
2914                 LOG_ERROR("Failure setting breakpoint");
2915         return retval;
2916 }
2917
2918 COMMAND_HANDLER(handle_bp_command)
2919 {
2920         if (CMD_ARGC == 0)
2921                 return handle_bp_command_list(CMD_CTX);
2922
2923         if (CMD_ARGC < 2 || CMD_ARGC > 3)
2924         {
2925                 command_print(CMD_CTX, "usage: bp <address> <length> ['hw']");
2926                 return ERROR_COMMAND_SYNTAX_ERROR;
2927         }
2928
2929         uint32_t addr;
2930         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2931         uint32_t length;
2932         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
2933
2934         int hw = BKPT_SOFT;
2935         if (CMD_ARGC == 3)
2936         {
2937                 if (strcmp(CMD_ARGV[2], "hw") == 0)
2938                         hw = BKPT_HARD;
2939                 else
2940                         return ERROR_COMMAND_SYNTAX_ERROR;
2941         }
2942
2943         return handle_bp_command_set(CMD_CTX, addr, length, hw);
2944 }
2945
2946 COMMAND_HANDLER(handle_rbp_command)
2947 {
2948         if (CMD_ARGC != 1)
2949                 return ERROR_COMMAND_SYNTAX_ERROR;
2950
2951         uint32_t addr;
2952         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2953
2954         struct target *target = get_current_target(CMD_CTX);
2955         breakpoint_remove(target, addr);
2956
2957         return ERROR_OK;
2958 }
2959
2960 COMMAND_HANDLER(handle_wp_command)
2961 {
2962         struct target *target = get_current_target(CMD_CTX);
2963
2964         if (CMD_ARGC == 0)
2965         {
2966                 struct watchpoint *watchpoint = target->watchpoints;
2967
2968                 while (watchpoint)
2969                 {
2970                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
2971                                         ", len: 0x%8.8" PRIx32
2972                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
2973                                         ", mask: 0x%8.8" PRIx32,
2974                                         watchpoint->address,
2975                                         watchpoint->length,
2976                                         (int)watchpoint->rw,
2977                                         watchpoint->value,
2978                                         watchpoint->mask);
2979                         watchpoint = watchpoint->next;
2980                 }
2981                 return ERROR_OK;
2982         }
2983
2984         enum watchpoint_rw type = WPT_ACCESS;
2985         uint32_t addr = 0;
2986         uint32_t length = 0;
2987         uint32_t data_value = 0x0;
2988         uint32_t data_mask = 0xffffffff;
2989
2990         switch (CMD_ARGC)
2991         {
2992         case 5:
2993                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
2994                 // fall through
2995         case 4:
2996                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
2997                 // fall through
2998         case 3:
2999                 switch (CMD_ARGV[2][0])
3000                 {
3001                 case 'r':
3002                         type = WPT_READ;
3003                         break;
3004                 case 'w':
3005                         type = WPT_WRITE;
3006                         break;
3007                 case 'a':
3008                         type = WPT_ACCESS;
3009                         break;
3010                 default:
3011                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3012                         return ERROR_COMMAND_SYNTAX_ERROR;
3013                 }
3014                 // fall through
3015         case 2:
3016                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3017                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3018                 break;
3019
3020         default:
3021                 command_print(CMD_CTX, "usage: wp [address length "
3022                                 "[(r|w|a) [value [mask]]]]");
3023                 return ERROR_COMMAND_SYNTAX_ERROR;
3024         }
3025
3026         int retval = watchpoint_add(target, addr, length, type,
3027                         data_value, data_mask);
3028         if (ERROR_OK != retval)
3029                 LOG_ERROR("Failure setting watchpoints");
3030
3031         return retval;
3032 }
3033
3034 COMMAND_HANDLER(handle_rwp_command)
3035 {
3036         if (CMD_ARGC != 1)
3037                 return ERROR_COMMAND_SYNTAX_ERROR;
3038
3039         uint32_t addr;
3040         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3041
3042         struct target *target = get_current_target(CMD_CTX);
3043         watchpoint_remove(target, addr);
3044
3045         return ERROR_OK;
3046 }
3047
3048
3049 /**
3050  * Translate a virtual address to a physical address.
3051  *
3052  * The low-level target implementation must have logged a detailed error
3053  * which is forwarded to telnet/GDB session.
3054  */
3055 COMMAND_HANDLER(handle_virt2phys_command)
3056 {
3057         if (CMD_ARGC != 1)
3058                 return ERROR_COMMAND_SYNTAX_ERROR;
3059
3060         uint32_t va;
3061         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3062         uint32_t pa;
3063
3064         struct target *target = get_current_target(CMD_CTX);
3065         int retval = target->type->virt2phys(target, va, &pa);
3066         if (retval == ERROR_OK)
3067                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3068
3069         return retval;
3070 }
3071
3072 static void writeData(FILE *f, const void *data, size_t len)
3073 {
3074         size_t written = fwrite(data, 1, len, f);
3075         if (written != len)
3076                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3077 }
3078
3079 static void writeLong(FILE *f, int l)
3080 {
3081         int i;
3082         for (i = 0; i < 4; i++)
3083         {
3084                 char c = (l >> (i*8))&0xff;
3085                 writeData(f, &c, 1);
3086         }
3087
3088 }
3089
3090 static void writeString(FILE *f, char *s)
3091 {
3092         writeData(f, s, strlen(s));
3093 }
3094
3095 /* Dump a gmon.out histogram file. */
3096 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3097 {
3098         uint32_t i;
3099         FILE *f = fopen(filename, "w");
3100         if (f == NULL)
3101                 return;
3102         writeString(f, "gmon");
3103         writeLong(f, 0x00000001); /* Version */
3104         writeLong(f, 0); /* padding */
3105         writeLong(f, 0); /* padding */
3106         writeLong(f, 0); /* padding */
3107
3108         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3109         writeData(f, &zero, 1);
3110
3111         /* figure out bucket size */
3112         uint32_t min = samples[0];
3113         uint32_t max = samples[0];
3114         for (i = 0; i < sampleNum; i++)
3115         {
3116                 if (min > samples[i])
3117                 {
3118                         min = samples[i];
3119                 }
3120                 if (max < samples[i])
3121                 {
3122                         max = samples[i];
3123                 }
3124         }
3125
3126         int addressSpace = (max-min + 1);
3127
3128         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3129         uint32_t length = addressSpace;
3130         if (length > maxBuckets)
3131         {
3132                 length = maxBuckets;
3133         }
3134         int *buckets = malloc(sizeof(int)*length);
3135         if (buckets == NULL)
3136         {
3137                 fclose(f);
3138                 return;
3139         }
3140         memset(buckets, 0, sizeof(int)*length);
3141         for (i = 0; i < sampleNum;i++)
3142         {
3143                 uint32_t address = samples[i];
3144                 long long a = address-min;
3145                 long long b = length-1;
3146                 long long c = addressSpace-1;
3147                 int index_t = (a*b)/c; /* danger!!!! int32 overflows */
3148                 buckets[index_t]++;
3149         }
3150
3151         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3152         writeLong(f, min);                      /* low_pc */
3153         writeLong(f, max);                      /* high_pc */
3154         writeLong(f, length);           /* # of samples */
3155         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3156         writeString(f, "seconds");
3157         for (i = 0; i < (15-strlen("seconds")); i++)
3158                 writeData(f, &zero, 1);
3159         writeString(f, "s");
3160
3161         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3162
3163         char *data = malloc(2*length);
3164         if (data != NULL)
3165         {
3166                 for (i = 0; i < length;i++)
3167                 {
3168                         int val;
3169                         val = buckets[i];
3170                         if (val > 65535)
3171                         {
3172                                 val = 65535;
3173                         }
3174                         data[i*2]=val&0xff;
3175                         data[i*2 + 1]=(val >> 8)&0xff;
3176                 }
3177                 free(buckets);
3178                 writeData(f, data, length * 2);
3179                 free(data);
3180         } else
3181         {
3182                 free(buckets);
3183         }
3184
3185         fclose(f);
3186 }
3187
3188 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3189  * which will be used as a random sampling of PC */
3190 COMMAND_HANDLER(handle_profile_command)
3191 {
3192         struct target *target = get_current_target(CMD_CTX);
3193         struct timeval timeout, now;
3194
3195         gettimeofday(&timeout, NULL);
3196         if (CMD_ARGC != 2)
3197         {
3198                 return ERROR_COMMAND_SYNTAX_ERROR;
3199         }
3200         unsigned offset;
3201         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3202
3203         timeval_add_time(&timeout, offset, 0);
3204
3205         /**
3206          * @todo: Some cores let us sample the PC without the
3207          * annoying halt/resume step; for example, ARMv7 PCSR.
3208          * Provide a way to use that more efficient mechanism.
3209          */
3210
3211         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3212
3213         static const int maxSample = 10000;
3214         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3215         if (samples == NULL)
3216                 return ERROR_OK;
3217
3218         int numSamples = 0;
3219         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3220         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3221
3222         for (;;)
3223         {
3224                 int retval;
3225                 target_poll(target);
3226                 if (target->state == TARGET_HALTED)
3227                 {
3228                         uint32_t t=*((uint32_t *)reg->value);
3229                         samples[numSamples++]=t;
3230                         retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3231                         target_poll(target);
3232                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3233                 } else if (target->state == TARGET_RUNNING)
3234                 {
3235                         /* We want to quickly sample the PC. */
3236                         if ((retval = target_halt(target)) != ERROR_OK)
3237                         {
3238                                 free(samples);
3239                                 return retval;
3240                         }
3241                 } else
3242                 {
3243                         command_print(CMD_CTX, "Target not halted or running");
3244                         retval = ERROR_OK;
3245                         break;
3246                 }
3247                 if (retval != ERROR_OK)
3248                 {
3249                         break;
3250                 }
3251
3252                 gettimeofday(&now, NULL);
3253                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
3254                 {
3255                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3256                         if ((retval = target_poll(target)) != ERROR_OK)
3257                         {
3258                                 free(samples);
3259                                 return retval;
3260                         }
3261                         if (target->state == TARGET_HALTED)
3262                         {
3263                                 target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
3264                         }
3265                         if ((retval = target_poll(target)) != ERROR_OK)
3266                         {
3267                                 free(samples);
3268                                 return retval;
3269                         }
3270                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3271                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3272                         break;
3273                 }
3274         }
3275         free(samples);
3276
3277         return ERROR_OK;
3278 }
3279
3280 static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t val)
3281 {
3282         char *namebuf;
3283         Jim_Obj *nameObjPtr, *valObjPtr;
3284         int result;
3285
3286         namebuf = alloc_printf("%s(%d)", varname, idx);
3287         if (!namebuf)
3288                 return JIM_ERR;
3289
3290         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3291         valObjPtr = Jim_NewIntObj(interp, val);
3292         if (!nameObjPtr || !valObjPtr)
3293         {
3294                 free(namebuf);
3295                 return JIM_ERR;
3296         }
3297
3298         Jim_IncrRefCount(nameObjPtr);
3299         Jim_IncrRefCount(valObjPtr);
3300         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3301         Jim_DecrRefCount(interp, nameObjPtr);
3302         Jim_DecrRefCount(interp, valObjPtr);
3303         free(namebuf);
3304         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3305         return result;
3306 }
3307
3308 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3309 {
3310         struct command_context *context;
3311         struct target *target;
3312
3313         context = current_command_context(interp);
3314         assert (context != NULL);
3315
3316         target = get_current_target(context);
3317         if (target == NULL)
3318         {
3319                 LOG_ERROR("mem2array: no current target");
3320                 return JIM_ERR;
3321         }
3322
3323         return  target_mem2array(interp, target, argc-1, argv + 1);
3324 }
3325
3326 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3327 {
3328         long l;
3329         uint32_t width;
3330         int len;
3331         uint32_t addr;
3332         uint32_t count;
3333         uint32_t v;
3334         const char *varname;
3335         int  n, e, retval;
3336         uint32_t i;
3337
3338         /* argv[1] = name of array to receive the data
3339          * argv[2] = desired width
3340          * argv[3] = memory address
3341          * argv[4] = count of times to read
3342          */
3343         if (argc != 4) {
3344                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3345                 return JIM_ERR;
3346         }
3347         varname = Jim_GetString(argv[0], &len);
3348         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3349
3350         e = Jim_GetLong(interp, argv[1], &l);
3351         width = l;
3352         if (e != JIM_OK) {
3353                 return e;
3354         }
3355
3356         e = Jim_GetLong(interp, argv[2], &l);
3357         addr = l;
3358         if (e != JIM_OK) {
3359                 return e;
3360         }
3361         e = Jim_GetLong(interp, argv[3], &l);
3362         len = l;
3363         if (e != JIM_OK) {
3364                 return e;
3365         }
3366         switch (width) {
3367                 case 8:
3368                         width = 1;
3369                         break;
3370                 case 16:
3371                         width = 2;
3372                         break;
3373                 case 32:
3374                         width = 4;
3375                         break;
3376                 default:
3377                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3378                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3379                         return JIM_ERR;
3380         }
3381         if (len == 0) {
3382                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3383                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3384                 return JIM_ERR;
3385         }
3386         if ((addr + (len * width)) < addr) {
3387                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3388                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3389                 return JIM_ERR;
3390         }
3391         /* absurd transfer size? */
3392         if (len > 65536) {
3393                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3394                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3395                 return JIM_ERR;
3396         }
3397
3398         if ((width == 1) ||
3399                 ((width == 2) && ((addr & 1) == 0)) ||
3400                 ((width == 4) && ((addr & 3) == 0))) {
3401                 /* all is well */
3402         } else {
3403                 char buf[100];
3404                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3405                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3406                                 addr,
3407                                 width);
3408                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3409                 return JIM_ERR;
3410         }
3411
3412         /* Transfer loop */
3413
3414         /* index counter */
3415         n = 0;
3416
3417         size_t buffersize = 4096;
3418         uint8_t *buffer = malloc(buffersize);
3419         if (buffer == NULL)
3420                 return JIM_ERR;
3421
3422         /* assume ok */
3423         e = JIM_OK;
3424         while (len) {
3425                 /* Slurp... in buffer size chunks */
3426
3427                 count = len; /* in objects.. */
3428                 if (count > (buffersize/width)) {
3429                         count = (buffersize/width);
3430                 }
3431
3432                 retval = target_read_memory(target, addr, width, count, buffer);
3433                 if (retval != ERROR_OK) {
3434                         /* BOO !*/
3435                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3436                                           (unsigned int)addr,
3437                                           (int)width,
3438                                           (int)count);
3439                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3440                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3441                         e = JIM_ERR;
3442                         len = 0;
3443                 } else {
3444                         v = 0; /* shut up gcc */
3445                         for (i = 0 ;i < count ;i++, n++) {
3446                                 switch (width) {
3447                                         case 4:
3448                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3449                                                 break;
3450                                         case 2:
3451                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3452                                                 break;
3453                                         case 1:
3454                                                 v = buffer[i] & 0x0ff;
3455                                                 break;
3456                                 }
3457                                 new_int_array_element(interp, varname, n, v);
3458                         }
3459                         len -= count;
3460                 }
3461         }
3462
3463         free(buffer);
3464
3465         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3466
3467         return JIM_OK;
3468 }
3469
3470 static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t *val)
3471 {
3472         char *namebuf;
3473         Jim_Obj *nameObjPtr, *valObjPtr;
3474         int result;
3475         long l;
3476
3477         namebuf = alloc_printf("%s(%d)", varname, idx);
3478         if (!namebuf)
3479                 return JIM_ERR;
3480
3481         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3482         if (!nameObjPtr)
3483         {
3484                 free(namebuf);
3485                 return JIM_ERR;
3486         }
3487
3488         Jim_IncrRefCount(nameObjPtr);
3489         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3490         Jim_DecrRefCount(interp, nameObjPtr);
3491         free(namebuf);
3492         if (valObjPtr == NULL)
3493                 return JIM_ERR;
3494
3495         result = Jim_GetLong(interp, valObjPtr, &l);
3496         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3497         *val = l;
3498         return result;
3499 }
3500
3501 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3502 {
3503         struct command_context *context;
3504         struct target *target;
3505
3506         context = current_command_context(interp);
3507         assert (context != NULL);
3508
3509         target = get_current_target(context);
3510         if (target == NULL) {
3511                 LOG_ERROR("array2mem: no current target");
3512                 return JIM_ERR;
3513         }
3514
3515         return target_array2mem(interp,target, argc-1, argv + 1);
3516 }
3517
3518 static int target_array2mem(Jim_Interp *interp, struct target *target,
3519                 int argc, Jim_Obj *const *argv)
3520 {
3521         long l;
3522         uint32_t width;
3523         int len;
3524         uint32_t addr;
3525         uint32_t count;
3526         uint32_t v;
3527         const char *varname;
3528         int  n, e, retval;
3529         uint32_t i;
3530
3531         /* argv[1] = name of array to get the data
3532          * argv[2] = desired width
3533          * argv[3] = memory address
3534          * argv[4] = count to write
3535          */
3536         if (argc != 4) {
3537                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3538                 return JIM_ERR;
3539         }
3540         varname = Jim_GetString(argv[0], &len);
3541         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3542
3543         e = Jim_GetLong(interp, argv[1], &l);
3544         width = l;
3545         if (e != JIM_OK) {
3546                 return e;
3547         }
3548
3549         e = Jim_GetLong(interp, argv[2], &l);
3550         addr = l;
3551         if (e != JIM_OK) {
3552                 return e;
3553         }
3554         e = Jim_GetLong(interp, argv[3], &l);
3555         len = l;
3556         if (e != JIM_OK) {
3557                 return e;
3558         }
3559         switch (width) {
3560                 case 8:
3561                         width = 1;
3562                         break;
3563                 case 16:
3564                         width = 2;
3565                         break;
3566                 case 32:
3567                         width = 4;
3568                         break;
3569                 default:
3570                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3571                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3572                         return JIM_ERR;
3573         }
3574         if (len == 0) {
3575                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3576                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
3577                 return JIM_ERR;
3578         }
3579         if ((addr + (len * width)) < addr) {
3580                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3581                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
3582                 return JIM_ERR;
3583         }
3584         /* absurd transfer size? */
3585         if (len > 65536) {
3586                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3587                 Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
3588                 return JIM_ERR;
3589         }
3590
3591         if ((width == 1) ||
3592                 ((width == 2) && ((addr & 1) == 0)) ||
3593                 ((width == 4) && ((addr & 3) == 0))) {
3594                 /* all is well */
3595         } else {
3596                 char buf[100];
3597                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3598                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3599                                 (unsigned int)addr,
3600                                 (int)width);
3601                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3602                 return JIM_ERR;
3603         }
3604
3605         /* Transfer loop */
3606
3607         /* index counter */
3608         n = 0;
3609         /* assume ok */
3610         e = JIM_OK;
3611
3612         size_t buffersize = 4096;
3613         uint8_t *buffer = malloc(buffersize);
3614         if (buffer == NULL)
3615                 return JIM_ERR;
3616
3617         while (len) {
3618                 /* Slurp... in buffer size chunks */
3619
3620                 count = len; /* in objects.. */
3621                 if (count > (buffersize/width)) {
3622                         count = (buffersize/width);
3623                 }
3624
3625                 v = 0; /* shut up gcc */
3626                 for (i = 0 ;i < count ;i++, n++) {
3627                         get_int_array_element(interp, varname, n, &v);
3628                         switch (width) {
3629                         case 4:
3630                                 target_buffer_set_u32(target, &buffer[i*width], v);
3631                                 break;
3632                         case 2:
3633                                 target_buffer_set_u16(target, &buffer[i*width], v);
3634                                 break;
3635                         case 1:
3636                                 buffer[i] = v & 0x0ff;
3637                                 break;
3638                         }
3639                 }
3640                 len -= count;
3641
3642                 retval = target_write_memory(target, addr, width, count, buffer);
3643                 if (retval != ERROR_OK) {
3644                         /* BOO !*/
3645                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3646                                           (unsigned int)addr,
3647                                           (int)width,
3648                                           (int)count);
3649                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3650                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3651                         e = JIM_ERR;
3652                         len = 0;
3653                 }
3654         }
3655
3656         free(buffer);
3657
3658         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3659
3660         return JIM_OK;
3661 }
3662
3663 /* FIX? should we propagate errors here rather than printing them
3664  * and continuing?
3665  */
3666 void target_handle_event(struct target *target, enum target_event e)
3667 {
3668         struct target_event_action *teap;
3669
3670         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3671                 if (teap->event == e) {
3672                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3673                                            target->target_number,
3674                                            target_name(target),
3675                                            target_type_name(target),
3676                                            e,
3677                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3678                                            Jim_GetString(teap->body, NULL));
3679                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK)
3680                         {
3681                                 Jim_MakeErrorMessage(teap->interp);
3682                                 command_print(NULL,"%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3683                         }
3684                 }
3685         }
3686 }
3687
3688 /**
3689  * Returns true only if the target has a handler for the specified event.
3690  */
3691 bool target_has_event_action(struct target *target, enum target_event event)
3692 {
3693         struct target_event_action *teap;
3694
3695         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3696                 if (teap->event == event)
3697                         return true;
3698         }
3699         return false;
3700 }
3701
3702 enum target_cfg_param {
3703         TCFG_TYPE,
3704         TCFG_EVENT,
3705         TCFG_WORK_AREA_VIRT,
3706         TCFG_WORK_AREA_PHYS,
3707         TCFG_WORK_AREA_SIZE,
3708         TCFG_WORK_AREA_BACKUP,
3709         TCFG_ENDIAN,
3710         TCFG_VARIANT,
3711         TCFG_COREID,
3712         TCFG_CHAIN_POSITION,
3713         TCFG_DBGBASE,
3714         TCFG_RTOS,
3715 };
3716
3717 static Jim_Nvp nvp_config_opts[] = {
3718         { .name = "-type",             .value = TCFG_TYPE },
3719         { .name = "-event",            .value = TCFG_EVENT },
3720         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3721         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3722         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3723         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3724         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3725         { .name = "-variant",          .value = TCFG_VARIANT },
3726         { .name = "-coreid",           .value = TCFG_COREID },
3727         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3728         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3729         { .name = "-rtos",             .value = TCFG_RTOS },
3730         { .name = NULL, .value = -1 }
3731 };
3732
3733 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3734 {
3735         Jim_Nvp *n;
3736         Jim_Obj *o;
3737         jim_wide w;
3738         char *cp;
3739         int e;
3740
3741         /* parse config or cget options ... */
3742         while (goi->argc > 0) {
3743                 Jim_SetEmptyResult(goi->interp);
3744                 /* Jim_GetOpt_Debug(goi); */
3745
3746                 if (target->type->target_jim_configure) {
3747                         /* target defines a configure function */
3748                         /* target gets first dibs on parameters */
3749                         e = (*(target->type->target_jim_configure))(target, goi);
3750                         if (e == JIM_OK) {
3751                                 /* more? */
3752                                 continue;
3753                         }
3754                         if (e == JIM_ERR) {
3755                                 /* An error */
3756                                 return e;
3757                         }
3758                         /* otherwise we 'continue' below */
3759                 }
3760                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3761                 if (e != JIM_OK) {
3762                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
3763                         return e;
3764                 }
3765                 switch (n->value) {
3766                 case TCFG_TYPE:
3767                         /* not setable */
3768                         if (goi->isconfigure) {
3769                                 Jim_SetResultFormatted(goi->interp,
3770                                                 "not settable: %s", n->name);
3771                                 return JIM_ERR;
3772                         } else {
3773                         no_params:
3774                                 if (goi->argc != 0) {
3775                                         Jim_WrongNumArgs(goi->interp,
3776                                                         goi->argc, goi->argv,
3777                                                         "NO PARAMS");
3778                                         return JIM_ERR;
3779                                 }
3780                         }
3781                         Jim_SetResultString(goi->interp,
3782                                         target_type_name(target), -1);
3783                         /* loop for more */
3784                         break;
3785                 case TCFG_EVENT:
3786                         if (goi->argc == 0) {
3787                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
3788                                 return JIM_ERR;
3789                         }
3790
3791                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
3792                         if (e != JIM_OK) {
3793                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
3794                                 return e;
3795                         }
3796
3797                         if (goi->isconfigure) {
3798                                 if (goi->argc != 1) {
3799                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
3800                                         return JIM_ERR;
3801                                 }
3802                         } else {
3803                                 if (goi->argc != 0) {
3804                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
3805                                         return JIM_ERR;
3806                                 }
3807                         }
3808
3809                         {
3810                                 struct target_event_action *teap;
3811
3812                                 teap = target->event_action;
3813                                 /* replace existing? */
3814                                 while (teap) {
3815                                         if (teap->event == (enum target_event)n->value) {
3816                                                 break;
3817                                         }
3818                                         teap = teap->next;
3819                                 }
3820
3821                                 if (goi->isconfigure) {
3822                                         bool replace = true;
3823                                         if (teap == NULL) {
3824                                                 /* create new */
3825                                                 teap = calloc(1, sizeof(*teap));
3826                                                 replace = false;
3827                                         }
3828                                         teap->event = n->value;
3829                                         teap->interp = goi->interp;
3830                                         Jim_GetOpt_Obj(goi, &o);
3831                                         if (teap->body) {
3832                                                 Jim_DecrRefCount(teap->interp, teap->body);
3833                                         }
3834                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
3835                                         /*
3836                                          * FIXME:
3837                                          *     Tcl/TK - "tk events" have a nice feature.
3838                                          *     See the "BIND" command.
3839                                          *    We should support that here.
3840                                          *     You can specify %X and %Y in the event code.
3841                                          *     The idea is: %T - target name.
3842                                          *     The idea is: %N - target number
3843                                          *     The idea is: %E - event name.
3844                                          */
3845                                         Jim_IncrRefCount(teap->body);
3846
3847                                         if (!replace)
3848                                         {
3849                                                 /* add to head of event list */
3850                                                 teap->next = target->event_action;
3851                                                 target->event_action = teap;
3852                                         }
3853                                         Jim_SetEmptyResult(goi->interp);
3854                                 } else {
3855                                         /* get */
3856                                         if (teap == NULL) {
3857                                                 Jim_SetEmptyResult(goi->interp);
3858                                         } else {
3859                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
3860                                         }
3861                                 }
3862                         }
3863                         /* loop for more */
3864                         break;
3865
3866                 case TCFG_WORK_AREA_VIRT:
3867                         if (goi->isconfigure) {
3868                                 target_free_all_working_areas(target);
3869                                 e = Jim_GetOpt_Wide(goi, &w);
3870                                 if (e != JIM_OK) {
3871                                         return e;
3872                                 }
3873                                 target->working_area_virt = w;
3874                                 target->working_area_virt_spec = true;
3875                         } else {
3876                                 if (goi->argc != 0) {
3877                                         goto no_params;
3878                                 }
3879                         }
3880                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
3881                         /* loop for more */
3882                         break;
3883
3884                 case TCFG_WORK_AREA_PHYS:
3885                         if (goi->isconfigure) {
3886                                 target_free_all_working_areas(target);
3887                                 e = Jim_GetOpt_Wide(goi, &w);
3888                                 if (e != JIM_OK) {
3889                                         return e;
3890                                 }
3891                                 target->working_area_phys = w;
3892                                 target->working_area_phys_spec = true;
3893                         } else {
3894                                 if (goi->argc != 0) {
3895                                         goto no_params;
3896                                 }
3897                         }
3898                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
3899                         /* loop for more */
3900                         break;
3901
3902                 case TCFG_WORK_AREA_SIZE:
3903                         if (goi->isconfigure) {
3904                                 target_free_all_working_areas(target);
3905                                 e = Jim_GetOpt_Wide(goi, &w);
3906                                 if (e != JIM_OK) {
3907                                         return e;
3908                                 }
3909                                 target->working_area_size = w;
3910                         } else {
3911                                 if (goi->argc != 0) {
3912                                         goto no_params;
3913                                 }
3914                         }
3915                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
3916                         /* loop for more */
3917                         break;
3918
3919                 case TCFG_WORK_AREA_BACKUP:
3920                         if (goi->isconfigure) {
3921                                 target_free_all_working_areas(target);
3922                                 e = Jim_GetOpt_Wide(goi, &w);
3923                                 if (e != JIM_OK) {
3924                                         return e;
3925                                 }
3926                                 /* make this exactly 1 or 0 */
3927                                 target->backup_working_area = (!!w);
3928                         } else {
3929                                 if (goi->argc != 0) {
3930                                         goto no_params;
3931                                 }
3932                         }
3933                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
3934                         /* loop for more e*/
3935                         break;
3936
3937
3938                 case TCFG_ENDIAN:
3939                         if (goi->isconfigure) {
3940                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
3941                                 if (e != JIM_OK) {
3942                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
3943                                         return e;
3944                                 }
3945                                 target->endianness = n->value;
3946                         } else {
3947                                 if (goi->argc != 0) {
3948                                         goto no_params;
3949                                 }
3950                         }
3951                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3952                         if (n->name == NULL) {
3953                                 target->endianness = TARGET_LITTLE_ENDIAN;
3954                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
3955                         }
3956                         Jim_SetResultString(goi->interp, n->name, -1);
3957                         /* loop for more */
3958                         break;
3959
3960                 case TCFG_VARIANT:
3961                         if (goi->isconfigure) {
3962                                 if (goi->argc < 1) {
3963                                         Jim_SetResultFormatted(goi->interp,
3964                                                                                    "%s ?STRING?",
3965                                                                                    n->name);
3966                                         return JIM_ERR;
3967                                 }
3968                                 if (target->variant) {
3969                                         free((void *)(target->variant));
3970                                 }
3971                                 e = Jim_GetOpt_String(goi, &cp, NULL);
3972                                 target->variant = strdup(cp);
3973                         } else {
3974                                 if (goi->argc != 0) {
3975                                         goto no_params;
3976                                 }
3977                         }
3978                         Jim_SetResultString(goi->interp, target->variant,-1);
3979                         /* loop for more */
3980                         break;
3981
3982                 case TCFG_COREID:
3983                         if (goi->isconfigure) {
3984                                 e = Jim_GetOpt_Wide(goi, &w);
3985                                 if (e != JIM_OK) {
3986                                         return e;
3987                                 }
3988                                 target->coreid = (int32_t)w;
3989                         } else {
3990                                 if (goi->argc != 0) {
3991                                         goto no_params;
3992                                 }
3993                         }
3994                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
3995                         /* loop for more */
3996                         break;
3997
3998                 case TCFG_CHAIN_POSITION:
3999                         if (goi->isconfigure) {
4000                                 Jim_Obj *o_t;
4001                                 struct jtag_tap *tap;
4002                                 target_free_all_working_areas(target);
4003                                 e = Jim_GetOpt_Obj(goi, &o_t);
4004                                 if (e != JIM_OK) {
4005                                         return e;
4006                                 }
4007                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4008                                 if (tap == NULL) {
4009                                         return JIM_ERR;
4010                                 }
4011                                 /* make this exactly 1 or 0 */
4012                                 target->tap = tap;
4013                         } else {
4014                                 if (goi->argc != 0) {
4015                                         goto no_params;
4016                                 }
4017                         }
4018                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4019                         /* loop for more e*/
4020                         break;
4021                 case TCFG_DBGBASE:
4022                         if (goi->isconfigure) {
4023                                 e = Jim_GetOpt_Wide(goi, &w);
4024                                 if (e != JIM_OK) {
4025                                         return e;
4026                                 }
4027                                 target->dbgbase = (uint32_t)w;
4028                                 target->dbgbase_set = true;
4029                         } else {
4030                                 if (goi->argc != 0) {
4031                                         goto no_params;
4032                                 }
4033                         }
4034                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4035                         /* loop for more */
4036                         break;
4037
4038                 case TCFG_RTOS:
4039                         /* RTOS */
4040                         {
4041                                 int result = rtos_create( goi, target );
4042                                 if ( result != JIM_OK )
4043                                 {
4044                                         return result;
4045                                 }
4046                         }
4047                         /* loop for more */
4048                         break;
4049                 }
4050         } /* while (goi->argc) */
4051
4052
4053                 /* done - we return */
4054         return JIM_OK;
4055 }
4056
4057 static int
4058 jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4059 {
4060         Jim_GetOptInfo goi;
4061
4062         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4063         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4064         int need_args = 1 + goi.isconfigure;
4065         if (goi.argc < need_args)
4066         {
4067                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4068                         goi.isconfigure
4069                                 ? "missing: -option VALUE ..."
4070                                 : "missing: -option ...");
4071                 return JIM_ERR;
4072         }
4073         struct target *target = Jim_CmdPrivData(goi.interp);
4074         return target_configure(&goi, target);
4075 }
4076
4077 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4078 {
4079         const char *cmd_name = Jim_GetString(argv[0], NULL);
4080
4081         Jim_GetOptInfo goi;
4082         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4083
4084         if (goi.argc < 2 || goi.argc > 4)
4085         {
4086                 Jim_SetResultFormatted(goi.interp,
4087                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4088                 return JIM_ERR;
4089         }
4090
4091         target_write_fn fn;
4092         fn = target_write_memory_fast;
4093
4094         int e;
4095         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0)
4096         {
4097                 /* consume it */
4098                 struct Jim_Obj *obj;
4099                 e = Jim_GetOpt_Obj(&goi, &obj);
4100                 if (e != JIM_OK)
4101                         return e;
4102
4103                 fn = target_write_phys_memory;
4104         }
4105
4106         jim_wide a;
4107         e = Jim_GetOpt_Wide(&goi, &a);
4108         if (e != JIM_OK)
4109                 return e;
4110
4111         jim_wide b;
4112         e = Jim_GetOpt_Wide(&goi, &b);
4113         if (e != JIM_OK)
4114                 return e;
4115
4116         jim_wide c = 1;
4117         if (goi.argc == 1)
4118         {
4119                 e = Jim_GetOpt_Wide(&goi, &c);
4120                 if (e != JIM_OK)
4121                         return e;
4122         }
4123
4124         /* all args must be consumed */
4125         if (goi.argc != 0)
4126         {
4127                 return JIM_ERR;
4128         }
4129
4130         struct target *target = Jim_CmdPrivData(goi.interp);
4131         unsigned data_size;
4132         if (strcasecmp(cmd_name, "mww") == 0) {
4133                 data_size = 4;
4134         }
4135         else if (strcasecmp(cmd_name, "mwh") == 0) {
4136                 data_size = 2;
4137         }
4138         else if (strcasecmp(cmd_name, "mwb") == 0) {
4139                 data_size = 1;
4140         } else {
4141                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4142                 return JIM_ERR;
4143         }
4144
4145         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4146 }
4147
4148 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4149 {
4150         const char *cmd_name = Jim_GetString(argv[0], NULL);
4151
4152         Jim_GetOptInfo goi;
4153         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4154
4155         if ((goi.argc < 1) || (goi.argc > 3))
4156         {
4157                 Jim_SetResultFormatted(goi.interp,
4158                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4159                 return JIM_ERR;
4160         }
4161
4162         int (*fn)(struct target *target,
4163                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4164         fn=target_read_memory;
4165
4166         int e;
4167         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0)
4168         {
4169                 /* consume it */
4170                 struct Jim_Obj *obj;
4171                 e = Jim_GetOpt_Obj(&goi, &obj);
4172                 if (e != JIM_OK)
4173                         return e;
4174
4175                 fn=target_read_phys_memory;
4176         }
4177
4178         jim_wide a;
4179         e = Jim_GetOpt_Wide(&goi, &a);
4180         if (e != JIM_OK) {
4181                 return JIM_ERR;
4182         }
4183         jim_wide c;
4184         if (goi.argc == 1) {
4185                 e = Jim_GetOpt_Wide(&goi, &c);
4186                 if (e != JIM_OK) {
4187                         return JIM_ERR;
4188                 }
4189         } else {
4190                 c = 1;
4191         }
4192
4193         /* all args must be consumed */
4194         if (goi.argc != 0)
4195         {
4196                 return JIM_ERR;
4197         }
4198
4199         jim_wide b = 1; /* shut up gcc */
4200         if (strcasecmp(cmd_name, "mdw") == 0)
4201                 b = 4;
4202         else if (strcasecmp(cmd_name, "mdh") == 0)
4203                 b = 2;
4204         else if (strcasecmp(cmd_name, "mdb") == 0)
4205                 b = 1;
4206         else {
4207                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4208                 return JIM_ERR;
4209         }
4210
4211         /* convert count to "bytes" */
4212         c = c * b;
4213
4214         struct target *target = Jim_CmdPrivData(goi.interp);
4215         uint8_t  target_buf[32];
4216         jim_wide x, y, z;
4217         while (c > 0) {
4218                 y = c;
4219                 if (y > 16) {
4220                         y = 16;
4221                 }
4222                 e = fn(target, a, b, y / b, target_buf);
4223                 if (e != ERROR_OK) {
4224                         char tmp[10];
4225                         snprintf(tmp, sizeof(tmp), "%08lx", (long)a);
4226                         Jim_SetResultFormatted(interp, "error reading target @ 0x%s", tmp);
4227                         return JIM_ERR;
4228                 }
4229
4230                 command_print(NULL, "0x%08x ", (int)(a));
4231                 switch (b) {
4232                 case 4:
4233                         for (x = 0; x < 16 && x < y; x += 4)
4234                         {
4235                                 z = target_buffer_get_u32(target, &(target_buf[ x ]));
4236                                 command_print(NULL, "%08x ", (int)(z));
4237                         }
4238                         for (; (x < 16) ; x += 4) {
4239                                 command_print(NULL, "         ");
4240                         }
4241                         break;
4242                 case 2:
4243                         for (x = 0; x < 16 && x < y; x += 2)
4244                         {
4245                                 z = target_buffer_get_u16(target, &(target_buf[ x ]));
4246                                 command_print(NULL, "%04x ", (int)(z));
4247                         }
4248                         for (; (x < 16) ; x += 2) {
4249                                 command_print(NULL, "     ");
4250                         }
4251                         break;
4252                 case 1:
4253                 default:
4254                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4255                                 z = target_buffer_get_u8(target, &(target_buf[ x ]));
4256                                 command_print(NULL, "%02x ", (int)(z));
4257                         }
4258                         for (; (x < 16) ; x += 1) {
4259                                 command_print(NULL, "   ");
4260                         }
4261                         break;
4262                 }
4263                 /* ascii-ify the bytes */
4264                 for (x = 0 ; x < y ; x++) {
4265                         if ((target_buf[x] >= 0x20) &&
4266                                 (target_buf[x] <= 0x7e)) {
4267                                 /* good */
4268                         } else {
4269                                 /* smack it */
4270                                 target_buf[x] = '.';
4271                         }
4272                 }
4273                 /* space pad  */
4274                 while (x < 16) {
4275                         target_buf[x] = ' ';
4276                         x++;
4277                 }
4278                 /* terminate */
4279                 target_buf[16] = 0;
4280                 /* print - with a newline */
4281                 command_print(NULL, "%s\n", target_buf);
4282                 /* NEXT... */
4283                 c -= 16;
4284                 a += 16;
4285         }
4286         return JIM_OK;
4287 }
4288
4289 static int jim_target_mem2array(Jim_Interp *interp,
4290                 int argc, Jim_Obj *const *argv)
4291 {
4292         struct target *target = Jim_CmdPrivData(interp);
4293         return target_mem2array(interp, target, argc - 1, argv + 1);
4294 }
4295
4296 static int jim_target_array2mem(Jim_Interp *interp,
4297                 int argc, Jim_Obj *const *argv)
4298 {
4299         struct target *target = Jim_CmdPrivData(interp);
4300         return target_array2mem(interp, target, argc - 1, argv + 1);
4301 }
4302
4303 static int jim_target_tap_disabled(Jim_Interp *interp)
4304 {
4305         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4306         return JIM_ERR;
4307 }
4308
4309 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4310 {
4311         if (argc != 1)
4312         {
4313                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4314                 return JIM_ERR;
4315         }
4316         struct target *target = Jim_CmdPrivData(interp);
4317         if (!target->tap->enabled)
4318                 return jim_target_tap_disabled(interp);
4319
4320         int e = target->type->examine(target);
4321         if (e != ERROR_OK)
4322         {
4323                 return JIM_ERR;
4324         }
4325         return JIM_OK;
4326 }
4327
4328 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4329 {
4330         if (argc != 1)
4331         {
4332                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4333                 return JIM_ERR;
4334         }
4335         struct target *target = Jim_CmdPrivData(interp);
4336
4337         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4338                 return JIM_ERR;
4339
4340         return JIM_OK;
4341 }
4342
4343 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4344 {
4345         if (argc != 1)
4346         {
4347                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4348                 return JIM_ERR;
4349         }
4350         struct target *target = Jim_CmdPrivData(interp);
4351         if (!target->tap->enabled)
4352                 return jim_target_tap_disabled(interp);
4353
4354         int e;
4355         if (!(target_was_examined(target))) {
4356                 e = ERROR_TARGET_NOT_EXAMINED;
4357         } else {
4358                 e = target->type->poll(target);
4359         }
4360         if (e != ERROR_OK)
4361         {
4362                 return JIM_ERR;
4363         }
4364         return JIM_OK;
4365 }
4366
4367 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4368 {
4369         Jim_GetOptInfo goi;
4370         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4371
4372         if (goi.argc != 2)
4373         {
4374                 Jim_WrongNumArgs(interp, 0, argv,
4375                                 "([tT]|[fF]|assert|deassert) BOOL");
4376                 return JIM_ERR;
4377         }
4378
4379         Jim_Nvp *n;
4380         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4381         if (e != JIM_OK)
4382         {
4383                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4384                 return e;
4385         }
4386         /* the halt or not param */
4387         jim_wide a;
4388         e = Jim_GetOpt_Wide(&goi, &a);
4389         if (e != JIM_OK)
4390                 return e;
4391
4392         struct target *target = Jim_CmdPrivData(goi.interp);
4393         if (!target->tap->enabled)
4394                 return jim_target_tap_disabled(interp);
4395         if (!(target_was_examined(target)))
4396         {
4397                 LOG_ERROR("Target not examined yet");
4398                 return ERROR_TARGET_NOT_EXAMINED;
4399         }
4400         if (!target->type->assert_reset || !target->type->deassert_reset)
4401         {
4402                 Jim_SetResultFormatted(interp,
4403                                 "No target-specific reset for %s",
4404                                 target_name(target));
4405                 return JIM_ERR;
4406         }
4407         /* determine if we should halt or not. */
4408         target->reset_halt = !!a;
4409         /* When this happens - all workareas are invalid. */
4410         target_free_all_working_areas_restore(target, 0);
4411
4412         /* do the assert */
4413         if (n->value == NVP_ASSERT) {
4414                 e = target->type->assert_reset(target);
4415         } else {
4416                 e = target->type->deassert_reset(target);
4417         }
4418         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4419 }
4420
4421 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4422 {
4423         if (argc != 1) {
4424                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4425                 return JIM_ERR;
4426         }
4427         struct target *target = Jim_CmdPrivData(interp);
4428         if (!target->tap->enabled)
4429                 return jim_target_tap_disabled(interp);
4430         int e = target->type->halt(target);
4431         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4432 }
4433
4434 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4435 {
4436         Jim_GetOptInfo goi;
4437         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4438
4439         /* params:  <name>  statename timeoutmsecs */
4440         if (goi.argc != 2)
4441         {
4442                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4443                 Jim_SetResultFormatted(goi.interp,
4444                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4445                 return JIM_ERR;
4446         }
4447
4448         Jim_Nvp *n;
4449         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4450         if (e != JIM_OK) {
4451                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state,1);
4452                 return e;
4453         }
4454         jim_wide a;
4455         e = Jim_GetOpt_Wide(&goi, &a);
4456         if (e != JIM_OK) {
4457                 return e;
4458         }
4459         struct target *target = Jim_CmdPrivData(interp);
4460         if (!target->tap->enabled)
4461                 return jim_target_tap_disabled(interp);
4462
4463         e = target_wait_state(target, n->value, a);
4464         if (e != ERROR_OK)
4465         {
4466                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4467                 Jim_SetResultFormatted(goi.interp,
4468                                 "target: %s wait %s fails (%#s) %s",
4469                                 target_name(target), n->name,
4470                                 eObj, target_strerror_safe(e));
4471                 Jim_FreeNewObj(interp, eObj);
4472                 return JIM_ERR;
4473         }
4474         return JIM_OK;
4475 }
4476 /* List for human, Events defined for this target.
4477  * scripts/programs should use 'name cget -event NAME'
4478  */
4479 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4480 {
4481         struct command_context *cmd_ctx = current_command_context(interp);
4482         assert (cmd_ctx != NULL);
4483
4484         struct target *target = Jim_CmdPrivData(interp);
4485         struct target_event_action *teap = target->event_action;
4486         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4487                                    target->target_number,
4488                                    target_name(target));
4489         command_print(cmd_ctx, "%-25s | Body", "Event");
4490         command_print(cmd_ctx, "------------------------- | "
4491                         "----------------------------------------");
4492         while (teap)
4493         {
4494                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4495                 command_print(cmd_ctx, "%-25s | %s",
4496                                 opt->name, Jim_GetString(teap->body, NULL));
4497                 teap = teap->next;
4498         }
4499         command_print(cmd_ctx, "***END***");
4500         return JIM_OK;
4501 }
4502 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4503 {
4504         if (argc != 1)
4505         {
4506                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4507                 return JIM_ERR;
4508         }
4509         struct target *target = Jim_CmdPrivData(interp);
4510         Jim_SetResultString(interp, target_state_name(target), -1);
4511         return JIM_OK;
4512 }
4513 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4514 {
4515         Jim_GetOptInfo goi;
4516         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4517         if (goi.argc != 1)
4518         {
4519                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4520                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4521                 return JIM_ERR;
4522         }
4523         Jim_Nvp *n;
4524         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4525         if (e != JIM_OK)
4526         {
4527                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4528                 return e;
4529         }
4530         struct target *target = Jim_CmdPrivData(interp);
4531         target_handle_event(target, n->value);
4532         return JIM_OK;
4533 }
4534
4535 static const struct command_registration target_instance_command_handlers[] = {
4536         {
4537                 .name = "configure",
4538                 .mode = COMMAND_CONFIG,
4539                 .jim_handler = jim_target_configure,
4540                 .help  = "configure a new target for use",
4541                 .usage = "[target_attribute ...]",
4542         },
4543         {
4544                 .name = "cget",
4545                 .mode = COMMAND_ANY,
4546                 .jim_handler = jim_target_configure,
4547                 .help  = "returns the specified target attribute",
4548                 .usage = "target_attribute",
4549         },
4550         {
4551                 .name = "mww",
4552                 .mode = COMMAND_EXEC,
4553                 .jim_handler = jim_target_mw,
4554                 .help = "Write 32-bit word(s) to target memory",
4555                 .usage = "address data [count]",
4556         },
4557         {
4558                 .name = "mwh",
4559                 .mode = COMMAND_EXEC,
4560                 .jim_handler = jim_target_mw,
4561                 .help = "Write 16-bit half-word(s) to target memory",
4562                 .usage = "address data [count]",
4563         },
4564         {
4565                 .name = "mwb",
4566                 .mode = COMMAND_EXEC,
4567                 .jim_handler = jim_target_mw,
4568                 .help = "Write byte(s) to target memory",
4569                 .usage = "address data [count]",
4570         },
4571         {
4572                 .name = "mdw",
4573                 .mode = COMMAND_EXEC,
4574                 .jim_handler = jim_target_md,
4575                 .help = "Display target memory as 32-bit words",
4576                 .usage = "address [count]",
4577         },
4578         {
4579                 .name = "mdh",
4580                 .mode = COMMAND_EXEC,
4581                 .jim_handler = jim_target_md,
4582                 .help = "Display target memory as 16-bit half-words",
4583                 .usage = "address [count]",
4584         },
4585         {
4586                 .name = "mdb",
4587                 .mode = COMMAND_EXEC,
4588                 .jim_handler = jim_target_md,
4589                 .help = "Display target memory as 8-bit bytes",
4590                 .usage = "address [count]",
4591         },
4592         {
4593                 .name = "array2mem",
4594                 .mode = COMMAND_EXEC,
4595                 .jim_handler = jim_target_array2mem,
4596                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4597                         "to target memory",
4598                 .usage = "arrayname bitwidth address count",
4599         },
4600         {
4601                 .name = "mem2array",
4602                 .mode = COMMAND_EXEC,
4603                 .jim_handler = jim_target_mem2array,
4604                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4605                         "from target memory",
4606                 .usage = "arrayname bitwidth address count",
4607         },
4608         {
4609                 .name = "eventlist",
4610                 .mode = COMMAND_EXEC,
4611                 .jim_handler = jim_target_event_list,
4612                 .help = "displays a table of events defined for this target",
4613         },
4614         {
4615                 .name = "curstate",
4616                 .mode = COMMAND_EXEC,
4617                 .jim_handler = jim_target_current_state,
4618                 .help = "displays the current state of this target",
4619         },
4620         {
4621                 .name = "arp_examine",
4622                 .mode = COMMAND_EXEC,
4623                 .jim_handler = jim_target_examine,
4624                 .help = "used internally for reset processing",
4625         },
4626         {
4627                 .name = "arp_halt_gdb",
4628                 .mode = COMMAND_EXEC,
4629                 .jim_handler = jim_target_halt_gdb,
4630                 .help = "used internally for reset processing to halt GDB",
4631         },
4632         {
4633                 .name = "arp_poll",
4634                 .mode = COMMAND_EXEC,
4635                 .jim_handler = jim_target_poll,
4636                 .help = "used internally for reset processing",
4637         },
4638         {
4639                 .name = "arp_reset",
4640                 .mode = COMMAND_EXEC,
4641                 .jim_handler = jim_target_reset,
4642                 .help = "used internally for reset processing",
4643         },
4644         {
4645                 .name = "arp_halt",
4646                 .mode = COMMAND_EXEC,
4647                 .jim_handler = jim_target_halt,
4648                 .help = "used internally for reset processing",
4649         },
4650         {
4651                 .name = "arp_waitstate",
4652                 .mode = COMMAND_EXEC,
4653                 .jim_handler = jim_target_wait_state,
4654                 .help = "used internally for reset processing",
4655         },
4656         {
4657                 .name = "invoke-event",
4658                 .mode = COMMAND_EXEC,
4659                 .jim_handler = jim_target_invoke_event,
4660                 .help = "invoke handler for specified event",
4661                 .usage = "event_name",
4662         },
4663         COMMAND_REGISTRATION_DONE
4664 };
4665
4666 static int target_create(Jim_GetOptInfo *goi)
4667 {
4668         Jim_Obj *new_cmd;
4669         Jim_Cmd *cmd;
4670         const char *cp;
4671         char *cp2;
4672         int e;
4673         int x;
4674         struct target *target;
4675         struct command_context *cmd_ctx;
4676
4677         cmd_ctx = current_command_context(goi->interp);
4678         assert (cmd_ctx != NULL);
4679
4680         if (goi->argc < 3) {
4681                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4682                 return JIM_ERR;
4683         }
4684
4685         /* COMMAND */
4686         Jim_GetOpt_Obj(goi, &new_cmd);
4687         /* does this command exist? */
4688         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4689         if (cmd) {
4690                 cp = Jim_GetString(new_cmd, NULL);
4691                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4692                 return JIM_ERR;
4693         }
4694
4695         /* TYPE */
4696         e = Jim_GetOpt_String(goi, &cp2, NULL);
4697         cp = cp2;
4698         /* now does target type exist */
4699         for (x = 0 ; target_types[x] ; x++) {
4700                 if (0 == strcmp(cp, target_types[x]->name)) {
4701                         /* found */
4702                         break;
4703                 }
4704         }
4705         if (target_types[x] == NULL) {
4706                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4707                 for (x = 0 ; target_types[x] ; x++) {
4708                         if (target_types[x + 1]) {
4709                                 Jim_AppendStrings(goi->interp,
4710                                                                    Jim_GetResult(goi->interp),
4711                                                                    target_types[x]->name,
4712                                                                    ", ", NULL);
4713                         } else {
4714                                 Jim_AppendStrings(goi->interp,
4715                                                                    Jim_GetResult(goi->interp),
4716                                                                    " or ",
4717                                                                    target_types[x]->name,NULL);
4718                         }
4719                 }
4720                 return JIM_ERR;
4721         }
4722
4723         /* Create it */
4724         target = calloc(1,sizeof(struct target));
4725         /* set target number */
4726         target->target_number = new_target_number();
4727
4728         /* allocate memory for each unique target type */
4729         target->type = (struct target_type*)calloc(1,sizeof(struct target_type));
4730
4731         memcpy(target->type, target_types[x], sizeof(struct target_type));
4732
4733         /* will be set by "-endian" */
4734         target->endianness = TARGET_ENDIAN_UNKNOWN;
4735
4736         /* default to first core, override with -coreid */
4737         target->coreid = 0;
4738
4739         target->working_area        = 0x0;
4740         target->working_area_size   = 0x0;
4741         target->working_areas       = NULL;
4742         target->backup_working_area = 0;
4743
4744         target->state               = TARGET_UNKNOWN;
4745         target->debug_reason        = DBG_REASON_UNDEFINED;
4746         target->reg_cache           = NULL;
4747         target->breakpoints         = NULL;
4748         target->watchpoints         = NULL;
4749         target->next                = NULL;
4750         target->arch_info           = NULL;
4751
4752         target->display             = 1;
4753
4754         target->halt_issued                     = false;
4755
4756         /* initialize trace information */
4757         target->trace_info = malloc(sizeof(struct trace));
4758         target->trace_info->num_trace_points         = 0;
4759         target->trace_info->trace_points_size        = 0;
4760         target->trace_info->trace_points             = NULL;
4761         target->trace_info->trace_history_size       = 0;
4762         target->trace_info->trace_history            = NULL;
4763         target->trace_info->trace_history_pos        = 0;
4764         target->trace_info->trace_history_overflowed = 0;
4765
4766         target->dbgmsg          = NULL;
4767         target->dbg_msg_enabled = 0;
4768
4769         target->endianness = TARGET_ENDIAN_UNKNOWN;
4770
4771         target->rtos = NULL;
4772         target->rtos_auto_detect = false;
4773
4774         /* Do the rest as "configure" options */
4775         goi->isconfigure = 1;
4776         e = target_configure(goi, target);
4777
4778         if (target->tap == NULL)
4779         {
4780                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4781                 e = JIM_ERR;
4782         }
4783
4784         if (e != JIM_OK) {
4785                 free(target->type);
4786                 free(target);
4787                 return e;
4788         }
4789
4790         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
4791                 /* default endian to little if not specified */
4792                 target->endianness = TARGET_LITTLE_ENDIAN;
4793         }
4794
4795         /* incase variant is not set */
4796         if (!target->variant)
4797                 target->variant = strdup("");
4798
4799         cp = Jim_GetString(new_cmd, NULL);
4800         target->cmd_name = strdup(cp);
4801
4802         /* create the target specific commands */
4803         if (target->type->commands) {
4804                 e = register_commands(cmd_ctx, NULL, target->type->commands);
4805                 if (ERROR_OK != e)
4806                         LOG_ERROR("unable to register '%s' commands", cp);
4807         }
4808         if (target->type->target_create) {
4809                 (*(target->type->target_create))(target, goi->interp);
4810         }
4811
4812         /* append to end of list */
4813         {
4814                 struct target **tpp;
4815                 tpp = &(all_targets);
4816                 while (*tpp) {
4817                         tpp = &((*tpp)->next);
4818                 }
4819                 *tpp = target;
4820         }
4821
4822         /* now - create the new target name command */
4823         const const struct command_registration target_subcommands[] = {
4824                 {
4825                         .chain = target_instance_command_handlers,
4826                 },
4827                 {
4828                         .chain = target->type->commands,
4829                 },
4830                 COMMAND_REGISTRATION_DONE
4831         };
4832         const const struct command_registration target_commands[] = {
4833                 {
4834                         .name = cp,
4835                         .mode = COMMAND_ANY,
4836                         .help = "target command group",
4837                         .chain = target_subcommands,
4838                 },
4839                 COMMAND_REGISTRATION_DONE
4840         };
4841         e = register_commands(cmd_ctx, NULL, target_commands);
4842         if (ERROR_OK != e)
4843                 return JIM_ERR;
4844
4845         struct command *c = command_find_in_context(cmd_ctx, cp);
4846         assert(c);
4847         command_set_handler_data(c, target);
4848
4849         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
4850 }
4851
4852 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4853 {
4854         if (argc != 1)
4855         {
4856                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4857                 return JIM_ERR;
4858         }
4859         struct command_context *cmd_ctx = current_command_context(interp);
4860         assert (cmd_ctx != NULL);
4861
4862         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
4863         return JIM_OK;
4864 }
4865
4866 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4867 {
4868         if (argc != 1)
4869         {
4870                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4871                 return JIM_ERR;
4872         }
4873         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
4874         for (unsigned x = 0; NULL != target_types[x]; x++)
4875         {
4876                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
4877                         Jim_NewStringObj(interp, target_types[x]->name, -1));
4878         }
4879         return JIM_OK;
4880 }
4881
4882 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4883 {
4884         if (argc != 1)
4885         {
4886                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
4887                 return JIM_ERR;
4888         }
4889         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
4890         struct target *target = all_targets;
4891         while (target)
4892         {
4893                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
4894                         Jim_NewStringObj(interp, target_name(target), -1));
4895                 target = target->next;
4896         }
4897         return JIM_OK;
4898 }
4899
4900 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4901 {
4902         int i;
4903         const char *targetname;
4904         int retval,len;
4905         struct target *target;
4906         struct target_list *head, *curr, *new;
4907     curr = (struct target_list*) NULL;
4908         head = (struct target_list*) NULL;
4909         new = (struct target_list*) NULL;
4910
4911         retval = 0;
4912         LOG_DEBUG("%d",argc);
4913         /* argv[1] = target to associate in smp
4914          * argv[2] = target to assoicate in smp
4915          * argv[3] ...
4916          */
4917
4918         for(i=1;i<argc;i++)
4919         {
4920
4921                 targetname = Jim_GetString(argv[i], &len);
4922                 target = get_target(targetname);
4923                 LOG_DEBUG("%s ",targetname);
4924                 if (target)
4925                 {
4926                         new=malloc(sizeof(struct target_list));
4927                         new->target = target;
4928                         new->next = (struct target_list*)NULL;
4929                         if (head == (struct target_list*)NULL)
4930                         {
4931                                 head = new;
4932                                 curr = head;
4933                         }
4934                         else
4935                         {
4936                                 curr->next = new;
4937                                 curr = new;
4938                         }
4939                 }
4940         }
4941     /*  now parse the list of cpu and put the target in smp mode*/
4942         curr=head;
4943
4944     while(curr!=(struct target_list *)NULL)
4945         {
4946     target=curr->target;
4947         target->smp = 1;
4948         target->head = head;
4949         curr=curr->next;
4950         }
4951         return retval;
4952 }
4953
4954
4955 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4956 {
4957         Jim_GetOptInfo goi;
4958         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4959         if (goi.argc < 3)
4960         {
4961                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4962                         "<name> <target_type> [<target_options> ...]");
4963                 return JIM_ERR;
4964         }
4965         return target_create(&goi);
4966 }
4967
4968 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4969 {
4970         Jim_GetOptInfo goi;
4971         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4972
4973         /* It's OK to remove this mechanism sometime after August 2010 or so */
4974         LOG_WARNING("don't use numbers as target identifiers; use names");
4975         if (goi.argc != 1)
4976         {
4977                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
4978                 return JIM_ERR;
4979         }
4980         jim_wide w;
4981         int e = Jim_GetOpt_Wide(&goi, &w);
4982         if (e != JIM_OK)
4983                 return JIM_ERR;
4984
4985         struct target *target;
4986         for (target = all_targets; NULL != target; target = target->next)
4987         {
4988                 if (target->target_number != w)
4989                         continue;
4990
4991                 Jim_SetResultString(goi.interp, target_name(target), -1);
4992                 return JIM_OK;
4993         }
4994         {
4995                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
4996                 Jim_SetResultFormatted(goi.interp,
4997                         "Target: number %#s does not exist", wObj);
4998                 Jim_FreeNewObj(interp, wObj);
4999         }
5000         return JIM_ERR;
5001 }
5002
5003 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5004 {
5005         if (argc != 1)
5006         {
5007                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5008                 return JIM_ERR;
5009         }
5010         unsigned count = 0;
5011         struct target *target = all_targets;
5012         while (NULL != target)
5013         {
5014                 target = target->next;
5015                 count++;
5016         }
5017         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5018         return JIM_OK;
5019 }
5020
5021 static const struct command_registration target_subcommand_handlers[] = {
5022         {
5023                 .name = "init",
5024                 .mode = COMMAND_CONFIG,
5025                 .handler = handle_target_init_command,
5026                 .help = "initialize targets",
5027         },
5028         {
5029                 .name = "create",
5030                 /* REVISIT this should be COMMAND_CONFIG ... */
5031                 .mode = COMMAND_ANY,
5032                 .jim_handler = jim_target_create,
5033                 .usage = "name type '-chain-position' name [options ...]",
5034                 .help = "Creates and selects a new target",
5035         },
5036         {
5037                 .name = "current",
5038                 .mode = COMMAND_ANY,
5039                 .jim_handler = jim_target_current,
5040                 .help = "Returns the currently selected target",
5041         },
5042         {
5043                 .name = "types",
5044                 .mode = COMMAND_ANY,
5045                 .jim_handler = jim_target_types,
5046                 .help = "Returns the available target types as "
5047                                 "a list of strings",
5048         },
5049         {
5050                 .name = "names",
5051                 .mode = COMMAND_ANY,
5052                 .jim_handler = jim_target_names,
5053                 .help = "Returns the names of all targets as a list of strings",
5054         },
5055         {
5056                 .name = "number",
5057                 .mode = COMMAND_ANY,
5058                 .jim_handler = jim_target_number,
5059                 .usage = "number",
5060                 .help = "Returns the name of the numbered target "
5061                         "(DEPRECATED)",
5062         },
5063         {
5064                 .name = "count",
5065                 .mode = COMMAND_ANY,
5066                 .jim_handler = jim_target_count,
5067                 .help = "Returns the number of targets as an integer "
5068                         "(DEPRECATED)",
5069         },
5070         {
5071                 .name = "smp",
5072                 .mode = COMMAND_ANY,
5073                 .jim_handler = jim_target_smp,
5074                 .usage = "targetname1 targetname2 ...",
5075                 .help = "gather several target in a smp list"
5076         },
5077
5078         COMMAND_REGISTRATION_DONE
5079 };
5080
5081 struct FastLoad
5082 {
5083         uint32_t address;
5084         uint8_t *data;
5085         int length;
5086
5087 };
5088
5089 static int fastload_num;
5090 static struct FastLoad *fastload;
5091
5092 static void free_fastload(void)
5093 {
5094         if (fastload != NULL)
5095         {
5096                 int i;
5097                 for (i = 0; i < fastload_num; i++)
5098                 {
5099                         if (fastload[i].data)
5100                                 free(fastload[i].data);
5101                 }
5102                 free(fastload);
5103                 fastload = NULL;
5104         }
5105 }
5106
5107
5108
5109
5110 COMMAND_HANDLER(handle_fast_load_image_command)
5111 {
5112         uint8_t *buffer;
5113         size_t buf_cnt;
5114         uint32_t image_size;
5115         uint32_t min_address = 0;
5116         uint32_t max_address = 0xffffffff;
5117         int i;
5118
5119         struct image image;
5120
5121         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5122                         &image, &min_address, &max_address);
5123         if (ERROR_OK != retval)
5124                 return retval;
5125
5126         struct duration bench;
5127         duration_start(&bench);
5128
5129         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5130         if (retval != ERROR_OK)
5131         {
5132                 return retval;
5133         }
5134
5135         image_size = 0x0;
5136         retval = ERROR_OK;
5137         fastload_num = image.num_sections;
5138         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5139         if (fastload == NULL)
5140         {
5141                 command_print(CMD_CTX, "out of memory");
5142                 image_close(&image);
5143                 return ERROR_FAIL;
5144         }
5145         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5146         for (i = 0; i < image.num_sections; i++)
5147         {
5148                 buffer = malloc(image.sections[i].size);
5149                 if (buffer == NULL)
5150                 {
5151                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5152                                                   (int)(image.sections[i].size));
5153                         retval = ERROR_FAIL;
5154                         break;
5155                 }
5156
5157                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
5158                 {
5159                         free(buffer);
5160                         break;
5161                 }
5162
5163                 uint32_t offset = 0;
5164                 uint32_t length = buf_cnt;
5165
5166
5167                 /* DANGER!!! beware of unsigned comparision here!!! */
5168
5169                 if ((image.sections[i].base_address + buf_cnt >= min_address)&&
5170                                 (image.sections[i].base_address < max_address))
5171                 {
5172                         if (image.sections[i].base_address < min_address)
5173                         {
5174                                 /* clip addresses below */
5175                                 offset += min_address-image.sections[i].base_address;
5176                                 length -= offset;
5177                         }
5178
5179                         if (image.sections[i].base_address + buf_cnt > max_address)
5180                         {
5181                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5182                         }
5183
5184                         fastload[i].address = image.sections[i].base_address + offset;
5185                         fastload[i].data = malloc(length);
5186                         if (fastload[i].data == NULL)
5187                         {
5188                                 free(buffer);
5189                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5190                                                           length);
5191                                 retval = ERROR_FAIL;
5192                                 break;
5193                         }
5194                         memcpy(fastload[i].data, buffer + offset, length);
5195                         fastload[i].length = length;
5196
5197                         image_size += length;
5198                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5199                                                   (unsigned int)length,
5200                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5201                 }
5202
5203                 free(buffer);
5204         }
5205
5206         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
5207         {
5208                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5209                                 "in %fs (%0.3f KiB/s)", image_size,
5210                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5211
5212                 command_print(CMD_CTX,
5213                                 "WARNING: image has not been loaded to target!"
5214                                 "You can issue a 'fast_load' to finish loading.");
5215         }
5216
5217         image_close(&image);
5218
5219         if (retval != ERROR_OK)
5220         {
5221                 free_fastload();
5222         }
5223
5224         return retval;
5225 }
5226
5227 COMMAND_HANDLER(handle_fast_load_command)
5228 {
5229         if (CMD_ARGC > 0)
5230                 return ERROR_COMMAND_SYNTAX_ERROR;
5231         if (fastload == NULL)
5232         {
5233                 LOG_ERROR("No image in memory");
5234                 return ERROR_FAIL;
5235         }
5236         int i;
5237         int ms = timeval_ms();
5238         int size = 0;
5239         int retval = ERROR_OK;
5240         for (i = 0; i < fastload_num;i++)
5241         {
5242                 struct target *target = get_current_target(CMD_CTX);
5243                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5244                                           (unsigned int)(fastload[i].address),
5245                                           (unsigned int)(fastload[i].length));
5246                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5247                 if (retval != ERROR_OK)
5248                 {
5249                         break;
5250                 }
5251                 size += fastload[i].length;
5252         }
5253         if (retval == ERROR_OK)
5254         {
5255                 int after = timeval_ms();
5256                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5257         }
5258         return retval;
5259 }
5260
5261 static const struct command_registration target_command_handlers[] = {
5262         {
5263                 .name = "targets",
5264                 .handler = handle_targets_command,
5265                 .mode = COMMAND_ANY,
5266                 .help = "change current default target (one parameter) "
5267                         "or prints table of all targets (no parameters)",
5268                 .usage = "[target]",
5269         },
5270         {
5271                 .name = "target",
5272                 .mode = COMMAND_CONFIG,
5273                 .help = "configure target",
5274
5275                 .chain = target_subcommand_handlers,
5276         },
5277         COMMAND_REGISTRATION_DONE
5278 };
5279
5280 int target_register_commands(struct command_context *cmd_ctx)
5281 {
5282         return register_commands(cmd_ctx, NULL, target_command_handlers);
5283 }
5284
5285 static bool target_reset_nag = true;
5286
5287 bool get_target_reset_nag(void)
5288 {
5289         return target_reset_nag;
5290 }
5291
5292 COMMAND_HANDLER(handle_target_reset_nag)
5293 {
5294         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5295                         &target_reset_nag, "Nag after each reset about options to improve "
5296                         "performance");
5297 }
5298
5299 static const struct command_registration target_exec_command_handlers[] = {
5300         {
5301                 .name = "fast_load_image",
5302                 .handler = handle_fast_load_image_command,
5303                 .mode = COMMAND_ANY,
5304                 .help = "Load image into server memory for later use by "
5305                         "fast_load; primarily for profiling",
5306                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5307                         "[min_address [max_length]]",
5308         },
5309         {
5310                 .name = "fast_load",
5311                 .handler = handle_fast_load_command,
5312                 .mode = COMMAND_EXEC,
5313                 .help = "loads active fast load image to current target "
5314                         "- mainly for profiling purposes",
5315         },
5316         {
5317                 .name = "profile",
5318                 .handler = handle_profile_command,
5319                 .mode = COMMAND_EXEC,
5320                 .help = "profiling samples the CPU PC",
5321         },
5322         /** @todo don't register virt2phys() unless target supports it */
5323         {
5324                 .name = "virt2phys",
5325                 .handler = handle_virt2phys_command,
5326                 .mode = COMMAND_ANY,
5327                 .help = "translate a virtual address into a physical address",
5328                 .usage = "virtual_address",
5329         },
5330         {
5331                 .name = "reg",
5332                 .handler = handle_reg_command,
5333                 .mode = COMMAND_EXEC,
5334                 .help = "display or set a register; with no arguments, "
5335                         "displays all registers and their values",
5336                 .usage = "[(register_name|register_number) [value]]",
5337         },
5338         {
5339                 .name = "poll",
5340                 .handler = handle_poll_command,
5341                 .mode = COMMAND_EXEC,
5342                 .help = "poll target state; or reconfigure background polling",
5343                 .usage = "['on'|'off']",
5344         },
5345         {
5346                 .name = "wait_halt",
5347                 .handler = handle_wait_halt_command,
5348                 .mode = COMMAND_EXEC,
5349                 .help = "wait up to the specified number of milliseconds "
5350                         "(default 5) for a previously requested halt",
5351                 .usage = "[milliseconds]",
5352         },
5353         {
5354                 .name = "halt",
5355                 .handler = handle_halt_command,
5356                 .mode = COMMAND_EXEC,
5357                 .help = "request target to halt, then wait up to the specified"
5358                         "number of milliseconds (default 5) for it to complete",
5359                 .usage = "[milliseconds]",
5360         },
5361         {
5362                 .name = "resume",
5363                 .handler = handle_resume_command,
5364                 .mode = COMMAND_EXEC,
5365                 .help = "resume target execution from current PC or address",
5366                 .usage = "[address]",
5367         },
5368         {
5369                 .name = "reset",
5370                 .handler = handle_reset_command,
5371                 .mode = COMMAND_EXEC,
5372                 .usage = "[run|halt|init]",
5373                 .help = "Reset all targets into the specified mode."
5374                         "Default reset mode is run, if not given.",
5375         },
5376         {
5377                 .name = "soft_reset_halt",
5378                 .handler = handle_soft_reset_halt_command,
5379                 .mode = COMMAND_EXEC,
5380                 .help = "halt the target and do a soft reset",
5381         },
5382         {
5383                 .name = "step",
5384                 .handler = handle_step_command,
5385                 .mode = COMMAND_EXEC,
5386                 .help = "step one instruction from current PC or address",
5387                 .usage = "[address]",
5388         },
5389         {
5390                 .name = "mdw",
5391                 .handler = handle_md_command,
5392                 .mode = COMMAND_EXEC,
5393                 .help = "display memory words",
5394                 .usage = "['phys'] address [count]",
5395         },
5396         {
5397                 .name = "mdh",
5398                 .handler = handle_md_command,
5399                 .mode = COMMAND_EXEC,
5400                 .help = "display memory half-words",
5401                 .usage = "['phys'] address [count]",
5402         },
5403         {
5404                 .name = "mdb",
5405                 .handler = handle_md_command,
5406                 .mode = COMMAND_EXEC,
5407                 .help = "display memory bytes",
5408                 .usage = "['phys'] address [count]",
5409         },
5410         {
5411                 .name = "mww",
5412                 .handler = handle_mw_command,
5413                 .mode = COMMAND_EXEC,
5414                 .help = "write memory word",
5415                 .usage = "['phys'] address value [count]",
5416         },
5417         {
5418                 .name = "mwh",
5419                 .handler = handle_mw_command,
5420                 .mode = COMMAND_EXEC,
5421                 .help = "write memory half-word",
5422                 .usage = "['phys'] address value [count]",
5423         },
5424         {
5425                 .name = "mwb",
5426                 .handler = handle_mw_command,
5427                 .mode = COMMAND_EXEC,
5428                 .help = "write memory byte",
5429                 .usage = "['phys'] address value [count]",
5430         },
5431         {
5432                 .name = "bp",
5433                 .handler = handle_bp_command,
5434                 .mode = COMMAND_EXEC,
5435                 .help = "list or set hardware or software breakpoint",
5436                 .usage = "[address length ['hw']]",
5437         },
5438         {
5439                 .name = "rbp",
5440                 .handler = handle_rbp_command,
5441                 .mode = COMMAND_EXEC,
5442                 .help = "remove breakpoint",
5443                 .usage = "address",
5444         },
5445         {
5446                 .name = "wp",
5447                 .handler = handle_wp_command,
5448                 .mode = COMMAND_EXEC,
5449                 .help = "list (no params) or create watchpoints",
5450                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5451         },
5452         {
5453                 .name = "rwp",
5454                 .handler = handle_rwp_command,
5455                 .mode = COMMAND_EXEC,
5456                 .help = "remove watchpoint",
5457                 .usage = "address",
5458         },
5459         {
5460                 .name = "load_image",
5461                 .handler = handle_load_image_command,
5462                 .mode = COMMAND_EXEC,
5463                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5464                         "[min_address] [max_length]",
5465         },
5466         {
5467                 .name = "dump_image",
5468                 .handler = handle_dump_image_command,
5469                 .mode = COMMAND_EXEC,
5470                 .usage = "filename address size",
5471         },
5472         {
5473                 .name = "verify_image",
5474                 .handler = handle_verify_image_command,
5475                 .mode = COMMAND_EXEC,
5476                 .usage = "filename [offset [type]]",
5477         },
5478         {
5479                 .name = "test_image",
5480                 .handler = handle_test_image_command,
5481                 .mode = COMMAND_EXEC,
5482                 .usage = "filename [offset [type]]",
5483         },
5484         {
5485                 .name = "mem2array",
5486                 .mode = COMMAND_EXEC,
5487                 .jim_handler = jim_mem2array,
5488                 .help = "read 8/16/32 bit memory and return as a TCL array "
5489                         "for script processing",
5490                 .usage = "arrayname bitwidth address count",
5491         },
5492         {
5493                 .name = "array2mem",
5494                 .mode = COMMAND_EXEC,
5495                 .jim_handler = jim_array2mem,
5496                 .help = "convert a TCL array to memory locations "
5497                         "and write the 8/16/32 bit values",
5498                 .usage = "arrayname bitwidth address count",
5499         },
5500         {
5501                 .name = "reset_nag",
5502                 .handler = handle_target_reset_nag,
5503                 .mode = COMMAND_ANY,
5504                 .help = "Nag after each reset about options that could have been "
5505                                 "enabled to improve performance. ",
5506                 .usage = "['enable'|'disable']",
5507         },
5508         COMMAND_REGISTRATION_DONE
5509 };
5510 static int target_register_user_commands(struct command_context *cmd_ctx)
5511 {
5512         int retval = ERROR_OK;
5513         if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
5514                 return retval;
5515
5516         if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
5517                 return retval;
5518
5519
5520         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5521 }