git.gag.com Git - fw/openocd/blob - src/target/target.c

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