git.sur5r.net Git - 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  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   Copyright (C) 2011 Andreas Fritiofson                                 *
  24  *   andreas.fritiofson@gmail.com                                          *
  25  *                                                                         *
  26  *   This program is free software; you can redistribute it and/or modify  *
  27  *   it under the terms of the GNU General Public License as published by  *
  28  *   the Free Software Foundation; either version 2 of the License, or     *
  29  *   (at your option) any later version.                                   *
  30  *                                                                         *
  31  *   This program is distributed in the hope that it will be useful,       *
  32  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  33  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  34  *   GNU General Public License for more details.                          *
  35  *                                                                         *
  36  *   You should have received a copy of the GNU General Public License     *
  37  *   along with this program; if not, write to the                         *
  38  *   Free Software Foundation, Inc.,                                       *
  39  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  40  ***************************************************************************/
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #endif
  45
  46 #include <helper/time_support.h>
  47 #include <jtag/jtag.h>
  48 #include <flash/nor/core.h>
  49
  50 #include "target.h"
  51 #include "target_type.h"
  52 #include "target_request.h"
  53 #include "breakpoints.h"
  54 #include "register.h"
  55 #include "trace.h"
  56 #include "image.h"
  57 #include "rtos/rtos.h"
  58
  59 static int target_read_buffer_default(struct target *target, uint32_t address,
  60                 uint32_t size, uint8_t *buffer);
  61 static int target_write_buffer_default(struct target *target, uint32_t address,
  62                 uint32_t size, const uint8_t *buffer);
  63 static int target_array2mem(Jim_Interp *interp, struct target *target,
  64                 int argc, Jim_Obj * const *argv);
  65 static int target_mem2array(Jim_Interp *interp, struct target *target,
  66                 int argc, Jim_Obj * const *argv);
  67 static int target_register_user_commands(struct command_context *cmd_ctx);
  68
  69 /* targets */
  70 extern struct target_type arm7tdmi_target;
  71 extern struct target_type arm720t_target;
  72 extern struct target_type arm9tdmi_target;
  73 extern struct target_type arm920t_target;
  74 extern struct target_type arm966e_target;
  75 extern struct target_type arm946e_target;
  76 extern struct target_type arm926ejs_target;
  77 extern struct target_type fa526_target;
  78 extern struct target_type feroceon_target;
  79 extern struct target_type dragonite_target;
  80 extern struct target_type xscale_target;
  81 extern struct target_type cortexm3_target;
  82 extern struct target_type cortexa8_target;
  83 extern struct target_type arm11_target;
  84 extern struct target_type mips_m4k_target;
  85 extern struct target_type avr_target;
  86 extern struct target_type dsp563xx_target;
  87 extern struct target_type dsp5680xx_target;
  88 extern struct target_type testee_target;
  89 extern struct target_type avr32_ap7k_target;
  90 extern struct target_type stm32_stlink_target;
  91
  92 static struct target_type *target_types[] = {
  93         &arm7tdmi_target,
  94         &arm9tdmi_target,
  95         &arm920t_target,
  96         &arm720t_target,
  97         &arm966e_target,
  98         &arm946e_target,
  99         &arm926ejs_target,
 100         &fa526_target,
 101         &feroceon_target,
 102         &dragonite_target,
 103         &xscale_target,
 104         &cortexm3_target,
 105         &cortexa8_target,
 106         &arm11_target,
 107         &mips_m4k_target,
 108         &avr_target,
 109         &dsp563xx_target,
 110         &dsp5680xx_target,
 111         &testee_target,
 112         &avr32_ap7k_target,
 113         &stm32_stlink_target,
 114         NULL,
 115 };
 116
 117 struct target *all_targets;
 118 static struct target_event_callback *target_event_callbacks;
 119 static struct target_timer_callback *target_timer_callbacks;
 120 static const int polling_interval = 100;
 121
 122 static const Jim_Nvp nvp_assert[] = {
 123         { .name = "assert", NVP_ASSERT },
 124         { .name = "deassert", NVP_DEASSERT },
 125         { .name = "T", NVP_ASSERT },
 126         { .name = "F", NVP_DEASSERT },
 127         { .name = "t", NVP_ASSERT },
 128         { .name = "f", NVP_DEASSERT },
 129         { .name = NULL, .value = -1 }
 130 };
 131
 132 static const Jim_Nvp nvp_error_target[] = {
 133         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 134         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 135         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 136         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 137         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 138         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 139         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 140         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 141         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 142         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 143         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 144         { .value = -1, .name = NULL }
 145 };
 146
 147 static const char *target_strerror_safe(int err)
 148 {
 149         const Jim_Nvp *n;
 150
 151         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 152         if (n->name == NULL)
 153                 return "unknown";
 154         else
 155                 return n->name;
 156 }
 157
 158 static const Jim_Nvp nvp_target_event[] = {
 159
 160         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 161         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 162         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 163         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 164         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 165
 166         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 167         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 168
 169         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 170         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 171         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 172         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 173         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 174         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 175         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 176         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 177         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 178         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 179         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 180         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 181
 182         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 183         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 184
 185         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 186         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 187
 188         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 189         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 190
 191         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 192         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 193
 194         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 195         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 196
 197         { .name = NULL, .value = -1 }
 198 };
 199
 200 static const Jim_Nvp nvp_target_state[] = {
 201         { .name = "unknown", .value = TARGET_UNKNOWN },
 202         { .name = "running", .value = TARGET_RUNNING },
 203         { .name = "halted",  .value = TARGET_HALTED },
 204         { .name = "reset",   .value = TARGET_RESET },
 205         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 206         { .name = NULL, .value = -1 },
 207 };
 208
 209 static const Jim_Nvp nvp_target_debug_reason[] = {
 210         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 211         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 212         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 213         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 214         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 215         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 216         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 217         { .name = NULL, .value = -1 },
 218 };
 219
 220 static const Jim_Nvp nvp_target_endian[] = {
 221         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 222         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 223         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 224         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 225         { .name = NULL,     .value = -1 },
 226 };
 227
 228 static const Jim_Nvp nvp_reset_modes[] = {
 229         { .name = "unknown", .value = RESET_UNKNOWN },
 230         { .name = "run"    , .value = RESET_RUN },
 231         { .name = "halt"   , .value = RESET_HALT },
 232         { .name = "init"   , .value = RESET_INIT },
 233         { .name = NULL     , .value = -1 },
 234 };
 235
 236 const char *debug_reason_name(struct target *t)
 237 {
 238         const char *cp;
 239
 240         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 241                         t->debug_reason)->name;
 242         if (!cp) {
 243                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 244                 cp = "(*BUG*unknown*BUG*)";
 245         }
 246         return cp;
 247 }
 248
 249 const char *target_state_name(struct target *t)
 250 {
 251         const char *cp;
 252         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 253         if (!cp) {
 254                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 255                 cp = "(*BUG*unknown*BUG*)";
 256         }
 257         return cp;
 258 }
 259
 260 /* determine the number of the new target */
 261 static int new_target_number(void)
 262 {
 263         struct target *t;
 264         int x;
 265
 266         /* number is 0 based */
 267         x = -1;
 268         t = all_targets;
 269         while (t) {
 270                 if (x < t->target_number)
 271                         x = t->target_number;
 272                 t = t->next;
 273         }
 274         return x + 1;
 275 }
 276
 277 /* read a uint32_t from a buffer in target memory endianness */
 278 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 279 {
 280         if (target->endianness == TARGET_LITTLE_ENDIAN)
 281                 return le_to_h_u32(buffer);
 282         else
 283                 return be_to_h_u32(buffer);
 284 }
 285
 286 /* read a uint24_t from a buffer in target memory endianness */
 287 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 288 {
 289         if (target->endianness == TARGET_LITTLE_ENDIAN)
 290                 return le_to_h_u24(buffer);
 291         else
 292                 return be_to_h_u24(buffer);
 293 }
 294
 295 /* read a uint16_t from a buffer in target memory endianness */
 296 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 297 {
 298         if (target->endianness == TARGET_LITTLE_ENDIAN)
 299                 return le_to_h_u16(buffer);
 300         else
 301                 return be_to_h_u16(buffer);
 302 }
 303
 304 /* read a uint8_t from a buffer in target memory endianness */
 305 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 306 {
 307         return *buffer & 0x0ff;
 308 }
 309
 310 /* write a uint32_t to a buffer in target memory endianness */
 311 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 312 {
 313         if (target->endianness == TARGET_LITTLE_ENDIAN)
 314                 h_u32_to_le(buffer, value);
 315         else
 316                 h_u32_to_be(buffer, value);
 317 }
 318
 319 /* write a uint24_t to a buffer in target memory endianness */
 320 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 321 {
 322         if (target->endianness == TARGET_LITTLE_ENDIAN)
 323                 h_u24_to_le(buffer, value);
 324         else
 325                 h_u24_to_be(buffer, value);
 326 }
 327
 328 /* write a uint16_t to a buffer in target memory endianness */
 329 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 330 {
 331         if (target->endianness == TARGET_LITTLE_ENDIAN)
 332                 h_u16_to_le(buffer, value);
 333         else
 334                 h_u16_to_be(buffer, value);
 335 }
 336
 337 /* write a uint8_t to a buffer in target memory endianness */
 338 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 339 {
 340         *buffer = value;
 341 }
 342
 343 /* write a uint32_t array to a buffer in target memory endianness */
 344 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 345 {
 346         uint32_t i;
 347         for (i = 0; i < count; i++)
 348                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 349 }
 350
 351 /* write a uint16_t array to a buffer in target memory endianness */
 352 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 353 {
 354         uint32_t i;
 355         for (i = 0; i < count; i++)
 356                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 357 }
 358
 359 /* write a uint32_t array to a buffer in target memory endianness */
 360 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, uint32_t *srcbuf)
 361 {
 362         uint32_t i;
 363         for (i = 0; i < count; i++)
 364                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 365 }
 366
 367 /* write a uint16_t array to a buffer in target memory endianness */
 368 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, uint16_t *srcbuf)
 369 {
 370         uint32_t i;
 371         for (i = 0; i < count; i++)
 372                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 373 }
 374
 375 /* return a pointer to a configured target; id is name or number */
 376 struct target *get_target(const char *id)
 377 {
 378         struct target *target;
 379
 380         /* try as tcltarget name */
 381         for (target = all_targets; target; target = target->next) {
 382                 if (target->cmd_name == NULL)
 383                         continue;
 384                 if (strcmp(id, target->cmd_name) == 0)
 385                         return target;
 386         }
 387
 388         /* It's OK to remove this fallback sometime after August 2010 or so */
 389
 390         /* no match, try as number */
 391         unsigned num;
 392         if (parse_uint(id, &num) != ERROR_OK)
 393                 return NULL;
 394
 395         for (target = all_targets; target; target = target->next) {
 396                 if (target->target_number == (int)num) {
 397                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 398                                         target->cmd_name, num);
 399                         return target;
 400                 }
 401         }
 402
 403         return NULL;
 404 }
 405
 406 /* returns a pointer to the n-th configured target */
 407 static struct target *get_target_by_num(int num)
 408 {
 409         struct target *target = all_targets;
 410
 411         while (target) {
 412                 if (target->target_number == num)
 413                         return target;
 414                 target = target->next;
 415         }
 416
 417         return NULL;
 418 }
 419
 420 struct target *get_current_target(struct command_context *cmd_ctx)
 421 {
 422         struct target *target = get_target_by_num(cmd_ctx->current_target);
 423
 424         if (target == NULL) {
 425                 LOG_ERROR("BUG: current_target out of bounds");
 426                 exit(-1);
 427         }
 428
 429         return target;
 430 }
 431
 432 int target_poll(struct target *target)
 433 {
 434         int retval;
 435
 436         /* We can't poll until after examine */
 437         if (!target_was_examined(target)) {
 438                 /* Fail silently lest we pollute the log */
 439                 return ERROR_FAIL;
 440         }
 441
 442         retval = target->type->poll(target);
 443         if (retval != ERROR_OK)
 444                 return retval;
 445
 446         if (target->halt_issued) {
 447                 if (target->state == TARGET_HALTED)
 448                         target->halt_issued = false;
 449                 else {
 450                         long long t = timeval_ms() - target->halt_issued_time;
 451                         if (t > 1000) {
 452                                 target->halt_issued = false;
 453                                 LOG_INFO("Halt timed out, wake up GDB.");
 454                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 455                         }
 456                 }
 457         }
 458
 459         return ERROR_OK;
 460 }
 461
 462 int target_halt(struct target *target)
 463 {
 464         int retval;
 465         /* We can't poll until after examine */
 466         if (!target_was_examined(target)) {
 467                 LOG_ERROR("Target not examined yet");
 468                 return ERROR_FAIL;
 469         }
 470
 471         retval = target->type->halt(target);
 472         if (retval != ERROR_OK)
 473                 return retval;
 474
 475         target->halt_issued = true;
 476         target->halt_issued_time = timeval_ms();
 477
 478         return ERROR_OK;
 479 }
 480
 481 /**
 482  * Make the target (re)start executing using its saved execution
 483  * context (possibly with some modifications).
 484  *
 485  * @param target Which target should start executing.
 486  * @param current True to use the target's saved program counter instead
 487  *      of the address parameter
 488  * @param address Optionally used as the program counter.
 489  * @param handle_breakpoints True iff breakpoints at the resumption PC
 490  *      should be skipped.  (For example, maybe execution was stopped by
 491  *      such a breakpoint, in which case it would be counterprodutive to
 492  *      let it re-trigger.
 493  * @param debug_execution False if all working areas allocated by OpenOCD
 494  *      should be released and/or restored to their original contents.
 495  *      (This would for example be true to run some downloaded "helper"
 496  *      algorithm code, which resides in one such working buffer and uses
 497  *      another for data storage.)
 498  *
 499  * @todo Resolve the ambiguity about what the "debug_execution" flag
 500  * signifies.  For example, Target implementations don't agree on how
 501  * it relates to invalidation of the register cache, or to whether
 502  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 503  * to enable breakpoints when running downloaded "helper" algorithms
 504  * (debug_execution true), since the breakpoints would be set to match
 505  * target firmware being debugged, not the helper algorithm.... and
 506  * enabling them could cause such helpers to malfunction (for example,
 507  * by overwriting data with a breakpoint instruction.  On the other
 508  * hand the infrastructure for running such helpers might use this
 509  * procedure but rely on hardware breakpoint to detect termination.)
 510  */
 511 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 512 {
 513         int retval;
 514
 515         /* We can't poll until after examine */
 516         if (!target_was_examined(target)) {
 517                 LOG_ERROR("Target not examined yet");
 518                 return ERROR_FAIL;
 519         }
 520
 521         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 522
 523         /* note that resume *must* be asynchronous. The CPU can halt before
 524          * we poll. The CPU can even halt at the current PC as a result of
 525          * a software breakpoint being inserted by (a bug?) the application.
 526          */
 527         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 528         if (retval != ERROR_OK)
 529                 return retval;
 530
 531         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 532
 533         return retval;
 534 }
 535
 536 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 537 {
 538         char buf[100];
 539         int retval;
 540         Jim_Nvp *n;
 541         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 542         if (n->name == NULL) {
 543                 LOG_ERROR("invalid reset mode");
 544                 return ERROR_FAIL;
 545         }
 546
 547         /* disable polling during reset to make reset event scripts
 548          * more predictable, i.e. dr/irscan & pathmove in events will
 549          * not have JTAG operations injected into the middle of a sequence.
 550          */
 551         bool save_poll = jtag_poll_get_enabled();
 552
 553         jtag_poll_set_enabled(false);
 554
 555         sprintf(buf, "ocd_process_reset %s", n->name);
 556         retval = Jim_Eval(cmd_ctx->interp, buf);
 557
 558         jtag_poll_set_enabled(save_poll);
 559
 560         if (retval != JIM_OK) {
 561                 Jim_MakeErrorMessage(cmd_ctx->interp);
 562                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 563                 return ERROR_FAIL;
 564         }
 565
 566         /* We want any events to be processed before the prompt */
 567         retval = target_call_timer_callbacks_now();
 568
 569         struct target *target;
 570         for (target = all_targets; target; target = target->next)
 571                 target->type->check_reset(target);
 572
 573         return retval;
 574 }
 575
 576 static int identity_virt2phys(struct target *target,
 577                 uint32_t virtual, uint32_t *physical)
 578 {
 579         *physical = virtual;
 580         return ERROR_OK;
 581 }
 582
 583 static int no_mmu(struct target *target, int *enabled)
 584 {
 585         *enabled = 0;
 586         return ERROR_OK;
 587 }
 588
 589 static int default_examine(struct target *target)
 590 {
 591         target_set_examined(target);
 592         return ERROR_OK;
 593 }
 594
 595 /* no check by default */
 596 static int default_check_reset(struct target *target)
 597 {
 598         return ERROR_OK;
 599 }
 600
 601 int target_examine_one(struct target *target)
 602 {
 603         return target->type->examine(target);
 604 }
 605
 606 static int jtag_enable_callback(enum jtag_event event, void *priv)
 607 {
 608         struct target *target = priv;
 609
 610         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 611                 return ERROR_OK;
 612
 613         jtag_unregister_event_callback(jtag_enable_callback, target);
 614         return target_examine_one(target);
 615 }
 616
 617
 618 /* Targets that correctly implement init + examine, i.e.
 619  * no communication with target during init:
 620  *
 621  * XScale
 622  */
 623 int target_examine(void)
 624 {
 625         int retval = ERROR_OK;
 626         struct target *target;
 627
 628         for (target = all_targets; target; target = target->next) {
 629                 /* defer examination, but don't skip it */
 630                 if (!target->tap->enabled) {
 631                         jtag_register_event_callback(jtag_enable_callback,
 632                                         target);
 633                         continue;
 634                 }
 635                 retval = target_examine_one(target);
 636                 if (retval != ERROR_OK)
 637                         return retval;
 638         }
 639         return retval;
 640 }
 641 const char *target_type_name(struct target *target)
 642 {
 643         return target->type->name;
 644 }
 645
 646 static int target_write_memory_imp(struct target *target, uint32_t address,
 647                 uint32_t size, uint32_t count, const uint8_t *buffer)
 648 {
 649         if (!target_was_examined(target)) {
 650                 LOG_ERROR("Target not examined yet");
 651                 return ERROR_FAIL;
 652         }
 653         return target->type->write_memory_imp(target, address, size, count, buffer);
 654 }
 655
 656 static int target_read_memory_imp(struct target *target, uint32_t address,
 657                 uint32_t size, uint32_t count, uint8_t *buffer)
 658 {
 659         if (!target_was_examined(target)) {
 660                 LOG_ERROR("Target not examined yet");
 661                 return ERROR_FAIL;
 662         }
 663         return target->type->read_memory_imp(target, address, size, count, buffer);
 664 }
 665
 666 static int target_soft_reset_halt_imp(struct target *target)
 667 {
 668         if (!target_was_examined(target)) {
 669                 LOG_ERROR("Target not examined yet");
 670                 return ERROR_FAIL;
 671         }
 672         if (!target->type->soft_reset_halt_imp) {
 673                 LOG_ERROR("Target %s does not support soft_reset_halt",
 674                                 target_name(target));
 675                 return ERROR_FAIL;
 676         }
 677         return target->type->soft_reset_halt_imp(target);
 678 }
 679
 680 /**
 681  * Downloads a target-specific native code algorithm to the target,
 682  * and executes it.  * Note that some targets may need to set up, enable,
 683  * and tear down a breakpoint (hard or * soft) to detect algorithm
 684  * termination, while others may support  lower overhead schemes where
 685  * soft breakpoints embedded in the algorithm automatically terminate the
 686  * algorithm.
 687  *
 688  * @param target used to run the algorithm
 689  * @param arch_info target-specific description of the algorithm.
 690  */
 691 int target_run_algorithm(struct target *target,
 692                 int num_mem_params, struct mem_param *mem_params,
 693                 int num_reg_params, struct reg_param *reg_param,
 694                 uint32_t entry_point, uint32_t exit_point,
 695                 int timeout_ms, void *arch_info)
 696 {
 697         int retval = ERROR_FAIL;
 698
 699         if (!target_was_examined(target)) {
 700                 LOG_ERROR("Target not examined yet");
 701                 goto done;
 702         }
 703         if (!target->type->run_algorithm) {
 704                 LOG_ERROR("Target type '%s' does not support %s",
 705                                 target_type_name(target), __func__);
 706                 goto done;
 707         }
 708
 709         target->running_alg = true;
 710         retval = target->type->run_algorithm(target,
 711                         num_mem_params, mem_params,
 712                         num_reg_params, reg_param,
 713                         entry_point, exit_point, timeout_ms, arch_info);
 714         target->running_alg = false;
 715
 716 done:
 717         return retval;
 718 }
 719
 720 /**
 721  * Downloads a target-specific native code algorithm to the target,
 722  * executes and leaves it running.
 723  *
 724  * @param target used to run the algorithm
 725  * @param arch_info target-specific description of the algorithm.
 726  */
 727 int target_start_algorithm(struct target *target,
 728                 int num_mem_params, struct mem_param *mem_params,
 729                 int num_reg_params, struct reg_param *reg_params,
 730                 uint32_t entry_point, uint32_t exit_point,
 731                 void *arch_info)
 732 {
 733         int retval = ERROR_FAIL;
 734
 735         if (!target_was_examined(target)) {
 736                 LOG_ERROR("Target not examined yet");
 737                 goto done;
 738         }
 739         if (!target->type->start_algorithm) {
 740                 LOG_ERROR("Target type '%s' does not support %s",
 741                                 target_type_name(target), __func__);
 742                 goto done;
 743         }
 744         if (target->running_alg) {
 745                 LOG_ERROR("Target is already running an algorithm");
 746                 goto done;
 747         }
 748
 749         target->running_alg = true;
 750         retval = target->type->start_algorithm(target,
 751                         num_mem_params, mem_params,
 752                         num_reg_params, reg_params,
 753                         entry_point, exit_point, arch_info);
 754
 755 done:
 756         return retval;
 757 }
 758
 759 /**
 760  * Waits for an algorithm started with target_start_algorithm() to complete.
 761  *
 762  * @param target used to run the algorithm
 763  * @param arch_info target-specific description of the algorithm.
 764  */
 765 int target_wait_algorithm(struct target *target,
 766                 int num_mem_params, struct mem_param *mem_params,
 767                 int num_reg_params, struct reg_param *reg_params,
 768                 uint32_t exit_point, int timeout_ms,
 769                 void *arch_info)
 770 {
 771         int retval = ERROR_FAIL;
 772
 773         if (!target->type->wait_algorithm) {
 774                 LOG_ERROR("Target type '%s' does not support %s",
 775                                 target_type_name(target), __func__);
 776                 goto done;
 777         }
 778         if (!target->running_alg) {
 779                 LOG_ERROR("Target is not running an algorithm");
 780                 goto done;
 781         }
 782
 783         retval = target->type->wait_algorithm(target,
 784                         num_mem_params, mem_params,
 785                         num_reg_params, reg_params,
 786                         exit_point, timeout_ms, arch_info);
 787         if (retval != ERROR_TARGET_TIMEOUT)
 788                 target->running_alg = false;
 789
 790 done:
 791         return retval;
 792 }
 793
 794 /**
 795  * Executes a target-specific native code algorithm in the target.
 796  * It differs from target_run_algorithm in that the algorithm is asynchronous.
 797  * Because of this it requires an compliant algorithm:
 798  * see contrib/loaders/flash/stm32f1x.S for example.
 799  *
 800  * @param target used to run the algorithm
 801  */
 802
 803 int target_run_flash_async_algorithm(struct target *target,
 804                 uint8_t *buffer, uint32_t count, int block_size,
 805                 int num_mem_params, struct mem_param *mem_params,
 806                 int num_reg_params, struct reg_param *reg_params,
 807                 uint32_t buffer_start, uint32_t buffer_size,
 808                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 809 {
 810         int retval;
 811
 812         /* Set up working area. First word is write pointer, second word is read pointer,
 813          * rest is fifo data area. */
 814         uint32_t wp_addr = buffer_start;
 815         uint32_t rp_addr = buffer_start + 4;
 816         uint32_t fifo_start_addr = buffer_start + 8;
 817         uint32_t fifo_end_addr = buffer_start + buffer_size;
 818
 819         uint32_t wp = fifo_start_addr;
 820         uint32_t rp = fifo_start_addr;
 821
 822         /* validate block_size is 2^n */
 823         assert(!block_size || !(block_size & (block_size - 1)));
 824
 825         retval = target_write_u32(target, wp_addr, wp);
 826         if (retval != ERROR_OK)
 827                 return retval;
 828         retval = target_write_u32(target, rp_addr, rp);
 829         if (retval != ERROR_OK)
 830                 return retval;
 831
 832         /* Start up algorithm on target and let it idle while writing the first chunk */
 833         retval = target_start_algorithm(target, num_mem_params, mem_params,
 834                         num_reg_params, reg_params,
 835                         entry_point,
 836                         exit_point,
 837                         arch_info);
 838
 839         if (retval != ERROR_OK) {
 840                 LOG_ERROR("error starting target flash write algorithm");
 841                 return retval;
 842         }
 843
 844         while (count > 0) {
 845
 846                 retval = target_read_u32(target, rp_addr, &rp);
 847                 if (retval != ERROR_OK) {
 848                         LOG_ERROR("failed to get read pointer");
 849                         break;
 850                 }
 851
 852                 LOG_DEBUG("count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32, count, wp, rp);
 853
 854                 if (rp == 0) {
 855                         LOG_ERROR("flash write algorithm aborted by target");
 856                         retval = ERROR_FLASH_OPERATION_FAILED;
 857                         break;
 858                 }
 859
 860                 if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 861                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 862                         break;
 863                 }
 864
 865                 /* Count the number of bytes available in the fifo without
 866                  * crossing the wrap around. Make sure to not fill it completely,
 867                  * because that would make wp == rp and that's the empty condition. */
 868                 uint32_t thisrun_bytes;
 869                 if (rp > wp)
 870                         thisrun_bytes = rp - wp - block_size;
 871                 else if (rp > fifo_start_addr)
 872                         thisrun_bytes = fifo_end_addr - wp;
 873                 else
 874                         thisrun_bytes = fifo_end_addr - wp - block_size;
 875
 876                 if (thisrun_bytes == 0) {
 877                         /* Throttle polling a bit if transfer is (much) faster than flash
 878                          * programming. The exact delay shouldn't matter as long as it's
 879                          * less than buffer size / flash speed. This is very unlikely to
 880                          * run when using high latency connections such as USB. */
 881                         alive_sleep(10);
 882                         continue;
 883                 }
 884
 885                 /* Limit to the amount of data we actually want to write */
 886                 if (thisrun_bytes > count * block_size)
 887                         thisrun_bytes = count * block_size;
 888
 889                 /* Write data to fifo */
 890                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 891                 if (retval != ERROR_OK)
 892                         break;
 893
 894                 /* Update counters and wrap write pointer */
 895                 buffer += thisrun_bytes;
 896                 count -= thisrun_bytes / block_size;
 897                 wp += thisrun_bytes;
 898                 if (wp >= fifo_end_addr)
 899                         wp = fifo_start_addr;
 900
 901                 /* Store updated write pointer to target */
 902                 retval = target_write_u32(target, wp_addr, wp);
 903                 if (retval != ERROR_OK)
 904                         break;
 905         }
 906
 907         if (retval != ERROR_OK) {
 908                 /* abort flash write algorithm on target */
 909                 target_write_u32(target, wp_addr, 0);
 910         }
 911
 912         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
 913                         num_reg_params, reg_params,
 914                         exit_point,
 915                         10000,
 916                         arch_info);
 917
 918         if (retval2 != ERROR_OK) {
 919                 LOG_ERROR("error waiting for target flash write algorithm");
 920                 retval = retval2;
 921         }
 922
 923         return retval;
 924 }
 925
 926 int target_read_memory(struct target *target,
 927                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 928 {
 929         return target->type->read_memory(target, address, size, count, buffer);
 930 }
 931
 932 static int target_read_phys_memory(struct target *target,
 933                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 934 {
 935         return target->type->read_phys_memory(target, address, size, count, buffer);
 936 }
 937
 938 int target_write_memory(struct target *target,
 939                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 940 {
 941         return target->type->write_memory(target, address, size, count, buffer);
 942 }
 943
 944 static int target_write_phys_memory(struct target *target,
 945                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 946 {
 947         return target->type->write_phys_memory(target, address, size, count, buffer);
 948 }
 949
 950 int target_bulk_write_memory(struct target *target,
 951                 uint32_t address, uint32_t count, const uint8_t *buffer)
 952 {
 953         return target->type->bulk_write_memory(target, address, count, buffer);
 954 }
 955
 956 int target_add_breakpoint(struct target *target,
 957                 struct breakpoint *breakpoint)
 958 {
 959         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
 960                 LOG_WARNING("target %s is not halted", target->cmd_name);
 961                 return ERROR_TARGET_NOT_HALTED;
 962         }
 963         return target->type->add_breakpoint(target, breakpoint);
 964 }
 965
 966 int target_add_context_breakpoint(struct target *target,
 967                 struct breakpoint *breakpoint)
 968 {
 969         if (target->state != TARGET_HALTED) {
 970                 LOG_WARNING("target %s is not halted", target->cmd_name);
 971                 return ERROR_TARGET_NOT_HALTED;
 972         }
 973         return target->type->add_context_breakpoint(target, breakpoint);
 974 }
 975
 976 int target_add_hybrid_breakpoint(struct target *target,
 977                 struct breakpoint *breakpoint)
 978 {
 979         if (target->state != TARGET_HALTED) {
 980                 LOG_WARNING("target %s is not halted", target->cmd_name);
 981                 return ERROR_TARGET_NOT_HALTED;
 982         }
 983         return target->type->add_hybrid_breakpoint(target, breakpoint);
 984 }
 985
 986 int target_remove_breakpoint(struct target *target,
 987                 struct breakpoint *breakpoint)
 988 {
 989         return target->type->remove_breakpoint(target, breakpoint);
 990 }
 991
 992 int target_add_watchpoint(struct target *target,
 993                 struct watchpoint *watchpoint)
 994 {
 995         if (target->state != TARGET_HALTED) {
 996                 LOG_WARNING("target %s is not halted", target->cmd_name);
 997                 return ERROR_TARGET_NOT_HALTED;
 998         }
 999         return target->type->add_watchpoint(target, watchpoint);
1000 }
1001 int target_remove_watchpoint(struct target *target,
1002                 struct watchpoint *watchpoint)
1003 {
1004         return target->type->remove_watchpoint(target, watchpoint);
1005 }
1006
1007 int target_get_gdb_reg_list(struct target *target,
1008                 struct reg **reg_list[], int *reg_list_size)
1009 {
1010         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
1011 }
1012 int target_step(struct target *target,
1013                 int current, uint32_t address, int handle_breakpoints)
1014 {
1015         return target->type->step(target, current, address, handle_breakpoints);
1016 }
1017
1018 /**
1019  * Reset the @c examined flag for the given target.
1020  * Pure paranoia -- targets are zeroed on allocation.
1021  */
1022 static void target_reset_examined(struct target *target)
1023 {
1024         target->examined = false;
1025 }
1026
1027 static int err_read_phys_memory(struct target *target, uint32_t address,
1028                 uint32_t size, uint32_t count, uint8_t *buffer)
1029 {
1030         LOG_ERROR("Not implemented: %s", __func__);
1031         return ERROR_FAIL;
1032 }
1033
1034 static int err_write_phys_memory(struct target *target, uint32_t address,
1035                 uint32_t size, uint32_t count, const uint8_t *buffer)
1036 {
1037         LOG_ERROR("Not implemented: %s", __func__);
1038         return ERROR_FAIL;
1039 }
1040
1041 static int handle_target(void *priv);
1042
1043 static int target_init_one(struct command_context *cmd_ctx,
1044                 struct target *target)
1045 {
1046         target_reset_examined(target);
1047
1048         struct target_type *type = target->type;
1049         if (type->examine == NULL)
1050                 type->examine = default_examine;
1051
1052         if (type->check_reset == NULL)
1053                 type->check_reset = default_check_reset;
1054
1055         assert(type->init_target != NULL);
1056
1057         int retval = type->init_target(cmd_ctx, target);
1058         if (ERROR_OK != retval) {
1059                 LOG_ERROR("target '%s' init failed", target_name(target));
1060                 return retval;
1061         }
1062
1063         /**
1064          * @todo get rid of those *memory_imp() methods, now that all
1065          * callers are using target_*_memory() accessors ... and make
1066          * sure the "physical" paths handle the same issues.
1067          */
1068         /* a non-invasive way(in terms of patches) to add some code that
1069          * runs before the type->write/read_memory implementation
1070          */
1071         type->write_memory_imp = target->type->write_memory;
1072         type->write_memory = target_write_memory_imp;
1073
1074         type->read_memory_imp = target->type->read_memory;
1075         type->read_memory = target_read_memory_imp;
1076
1077         type->soft_reset_halt_imp = target->type->soft_reset_halt;
1078         type->soft_reset_halt = target_soft_reset_halt_imp;
1079
1080         /* Sanity-check MMU support ... stub in what we must, to help
1081          * implement it in stages, but warn if we need to do so.
1082          */
1083         if (type->mmu) {
1084                 if (type->write_phys_memory == NULL) {
1085                         LOG_ERROR("type '%s' is missing write_phys_memory",
1086                                         type->name);
1087                         type->write_phys_memory = err_write_phys_memory;
1088                 }
1089                 if (type->read_phys_memory == NULL) {
1090                         LOG_ERROR("type '%s' is missing read_phys_memory",
1091                                         type->name);
1092                         type->read_phys_memory = err_read_phys_memory;
1093                 }
1094                 if (type->virt2phys == NULL) {
1095                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1096                         type->virt2phys = identity_virt2phys;
1097                 }
1098         } else {
1099                 /* Make sure no-MMU targets all behave the same:  make no
1100                  * distinction between physical and virtual addresses, and
1101                  * ensure that virt2phys() is always an identity mapping.
1102                  */
1103                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1104                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1105
1106                 type->mmu = no_mmu;
1107                 type->write_phys_memory = type->write_memory;
1108                 type->read_phys_memory = type->read_memory;
1109                 type->virt2phys = identity_virt2phys;
1110         }
1111
1112         if (target->type->read_buffer == NULL)
1113                 target->type->read_buffer = target_read_buffer_default;
1114
1115         if (target->type->write_buffer == NULL)
1116                 target->type->write_buffer = target_write_buffer_default;
1117
1118         return ERROR_OK;
1119 }
1120
1121 static int target_init(struct command_context *cmd_ctx)
1122 {
1123         struct target *target;
1124         int retval;
1125
1126         for (target = all_targets; target; target = target->next) {
1127                 retval = target_init_one(cmd_ctx, target);
1128                 if (ERROR_OK != retval)
1129                         return retval;
1130         }
1131
1132         if (!all_targets)
1133                 return ERROR_OK;
1134
1135         retval = target_register_user_commands(cmd_ctx);
1136         if (ERROR_OK != retval)
1137                 return retval;
1138
1139         retval = target_register_timer_callback(&handle_target,
1140                         polling_interval, 1, cmd_ctx->interp);
1141         if (ERROR_OK != retval)
1142                 return retval;
1143
1144         return ERROR_OK;
1145 }
1146
1147 COMMAND_HANDLER(handle_target_init_command)
1148 {
1149         int retval;
1150
1151         if (CMD_ARGC != 0)
1152                 return ERROR_COMMAND_SYNTAX_ERROR;
1153
1154         static bool target_initialized;
1155         if (target_initialized) {
1156                 LOG_INFO("'target init' has already been called");
1157                 return ERROR_OK;
1158         }
1159         target_initialized = true;
1160
1161         retval = command_run_line(CMD_CTX, "init_targets");
1162         if (ERROR_OK != retval)
1163                 return retval;
1164
1165         retval = command_run_line(CMD_CTX, "init_board");
1166         if (ERROR_OK != retval)
1167                 return retval;
1168
1169         LOG_DEBUG("Initializing targets...");
1170         return target_init(CMD_CTX);
1171 }
1172
1173 int target_register_event_callback(int (*callback)(struct target *target,
1174                 enum target_event event, void *priv), void *priv)
1175 {
1176         struct target_event_callback **callbacks_p = &target_event_callbacks;
1177
1178         if (callback == NULL)
1179                 return ERROR_COMMAND_SYNTAX_ERROR;
1180
1181         if (*callbacks_p) {
1182                 while ((*callbacks_p)->next)
1183                         callbacks_p = &((*callbacks_p)->next);
1184                 callbacks_p = &((*callbacks_p)->next);
1185         }
1186
1187         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1188         (*callbacks_p)->callback = callback;
1189         (*callbacks_p)->priv = priv;
1190         (*callbacks_p)->next = NULL;
1191
1192         return ERROR_OK;
1193 }
1194
1195 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1196 {
1197         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1198         struct timeval now;
1199
1200         if (callback == NULL)
1201                 return ERROR_COMMAND_SYNTAX_ERROR;
1202
1203         if (*callbacks_p) {
1204                 while ((*callbacks_p)->next)
1205                         callbacks_p = &((*callbacks_p)->next);
1206                 callbacks_p = &((*callbacks_p)->next);
1207         }
1208
1209         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1210         (*callbacks_p)->callback = callback;
1211         (*callbacks_p)->periodic = periodic;
1212         (*callbacks_p)->time_ms = time_ms;
1213
1214         gettimeofday(&now, NULL);
1215         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1216         time_ms -= (time_ms % 1000);
1217         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1218         if ((*callbacks_p)->when.tv_usec > 1000000) {
1219                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1220                 (*callbacks_p)->when.tv_sec += 1;
1221         }
1222
1223         (*callbacks_p)->priv = priv;
1224         (*callbacks_p)->next = NULL;
1225
1226         return ERROR_OK;
1227 }
1228
1229 int target_unregister_event_callback(int (*callback)(struct target *target,
1230                 enum target_event event, void *priv), void *priv)
1231 {
1232         struct target_event_callback **p = &target_event_callbacks;
1233         struct target_event_callback *c = target_event_callbacks;
1234
1235         if (callback == NULL)
1236                 return ERROR_COMMAND_SYNTAX_ERROR;
1237
1238         while (c) {
1239                 struct target_event_callback *next = c->next;
1240                 if ((c->callback == callback) && (c->priv == priv)) {
1241                         *p = next;
1242                         free(c);
1243                         return ERROR_OK;
1244                 } else
1245                         p = &(c->next);
1246                 c = next;
1247         }
1248
1249         return ERROR_OK;
1250 }
1251
1252 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1253 {
1254         struct target_timer_callback **p = &target_timer_callbacks;
1255         struct target_timer_callback *c = target_timer_callbacks;
1256
1257         if (callback == NULL)
1258                 return ERROR_COMMAND_SYNTAX_ERROR;
1259
1260         while (c) {
1261                 struct target_timer_callback *next = c->next;
1262                 if ((c->callback == callback) && (c->priv == priv)) {
1263                         *p = next;
1264                         free(c);
1265                         return ERROR_OK;
1266                 } else
1267                         p = &(c->next);
1268                 c = next;
1269         }
1270
1271         return ERROR_OK;
1272 }
1273
1274 int target_call_event_callbacks(struct target *target, enum target_event event)
1275 {
1276         struct target_event_callback *callback = target_event_callbacks;
1277         struct target_event_callback *next_callback;
1278
1279         if (event == TARGET_EVENT_HALTED) {
1280                 /* execute early halted first */
1281                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1282         }
1283
1284         LOG_DEBUG("target event %i (%s)", event,
1285                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1286
1287         target_handle_event(target, event);
1288
1289         while (callback) {
1290                 next_callback = callback->next;
1291                 callback->callback(target, event, callback->priv);
1292                 callback = next_callback;
1293         }
1294
1295         return ERROR_OK;
1296 }
1297
1298 static int target_timer_callback_periodic_restart(
1299                 struct target_timer_callback *cb, struct timeval *now)
1300 {
1301         int time_ms = cb->time_ms;
1302         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1303         time_ms -= (time_ms % 1000);
1304         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1305         if (cb->when.tv_usec > 1000000) {
1306                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1307                 cb->when.tv_sec += 1;
1308         }
1309         return ERROR_OK;
1310 }
1311
1312 static int target_call_timer_callback(struct target_timer_callback *cb,
1313                 struct timeval *now)
1314 {
1315         cb->callback(cb->priv);
1316
1317         if (cb->periodic)
1318                 return target_timer_callback_periodic_restart(cb, now);
1319
1320         return target_unregister_timer_callback(cb->callback, cb->priv);
1321 }
1322
1323 static int target_call_timer_callbacks_check_time(int checktime)
1324 {
1325         keep_alive();
1326
1327         struct timeval now;
1328         gettimeofday(&now, NULL);
1329
1330         struct target_timer_callback *callback = target_timer_callbacks;
1331         while (callback) {
1332                 /* cleaning up may unregister and free this callback */
1333                 struct target_timer_callback *next_callback = callback->next;
1334
1335                 bool call_it = callback->callback &&
1336                         ((!checktime && callback->periodic) ||
1337                           now.tv_sec > callback->when.tv_sec ||
1338                          (now.tv_sec == callback->when.tv_sec &&
1339                           now.tv_usec >= callback->when.tv_usec));
1340
1341                 if (call_it) {
1342                         int retval = target_call_timer_callback(callback, &now);
1343                         if (retval != ERROR_OK)
1344                                 return retval;
1345                 }
1346
1347                 callback = next_callback;
1348         }
1349
1350         return ERROR_OK;
1351 }
1352
1353 int target_call_timer_callbacks(void)
1354 {
1355         return target_call_timer_callbacks_check_time(1);
1356 }
1357
1358 /* invoke periodic callbacks immediately */
1359 int target_call_timer_callbacks_now(void)
1360 {
1361         return target_call_timer_callbacks_check_time(0);
1362 }
1363
1364 /* Prints the working area layout for debug purposes */
1365 static void print_wa_layout(struct target *target)
1366 {
1367         struct working_area *c = target->working_areas;
1368
1369         while (c) {
1370                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1371                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1372                         c->address, c->address + c->size - 1, c->size);
1373                 c = c->next;
1374         }
1375 }
1376
1377 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1378 static void target_split_working_area(struct working_area *area, uint32_t size)
1379 {
1380         assert(area->free); /* Shouldn't split an allocated area */
1381         assert(size <= area->size); /* Caller should guarantee this */
1382
1383         /* Split only if not already the right size */
1384         if (size < area->size) {
1385                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1386
1387                 if (new_wa == NULL)
1388                         return;
1389
1390                 new_wa->next = area->next;
1391                 new_wa->size = area->size - size;
1392                 new_wa->address = area->address + size;
1393                 new_wa->backup = NULL;
1394                 new_wa->user = NULL;
1395                 new_wa->free = true;
1396
1397                 area->next = new_wa;
1398                 area->size = size;
1399
1400                 /* If backup memory was allocated to this area, it has the wrong size
1401                  * now so free it and it will be reallocated if/when needed */
1402                 if (area->backup) {
1403                         free(area->backup);
1404                         area->backup = NULL;
1405                 }
1406         }
1407 }
1408
1409 /* Merge all adjacent free areas into one */
1410 static void target_merge_working_areas(struct target *target)
1411 {
1412         struct working_area *c = target->working_areas;
1413
1414         while (c && c->next) {
1415                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1416
1417                 /* Find two adjacent free areas */
1418                 if (c->free && c->next->free) {
1419                         /* Merge the last into the first */
1420                         c->size += c->next->size;
1421
1422                         /* Remove the last */
1423                         struct working_area *to_be_freed = c->next;
1424                         c->next = c->next->next;
1425                         if (to_be_freed->backup)
1426                                 free(to_be_freed->backup);
1427                         free(to_be_freed);
1428
1429                         /* If backup memory was allocated to the remaining area, it's has
1430                          * the wrong size now */
1431                         if (c->backup) {
1432                                 free(c->backup);
1433                                 c->backup = NULL;
1434                         }
1435                 } else {
1436                         c = c->next;
1437                 }
1438         }
1439 }
1440
1441 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1442 {
1443         /* Reevaluate working area address based on MMU state*/
1444         if (target->working_areas == NULL) {
1445                 int retval;
1446                 int enabled;
1447
1448                 retval = target->type->mmu(target, &enabled);
1449                 if (retval != ERROR_OK)
1450                         return retval;
1451
1452                 if (!enabled) {
1453                         if (target->working_area_phys_spec) {
1454                                 LOG_DEBUG("MMU disabled, using physical "
1455                                         "address for working memory 0x%08"PRIx32,
1456                                         target->working_area_phys);
1457                                 target->working_area = target->working_area_phys;
1458                         } else {
1459                                 LOG_ERROR("No working memory available. "
1460                                         "Specify -work-area-phys to target.");
1461                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1462                         }
1463                 } else {
1464                         if (target->working_area_virt_spec) {
1465                                 LOG_DEBUG("MMU enabled, using virtual "
1466                                         "address for working memory 0x%08"PRIx32,
1467                                         target->working_area_virt);
1468                                 target->working_area = target->working_area_virt;
1469                         } else {
1470                                 LOG_ERROR("No working memory available. "
1471                                         "Specify -work-area-virt to target.");
1472                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1473                         }
1474                 }
1475
1476                 /* Set up initial working area on first call */
1477                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1478                 if (new_wa) {
1479                         new_wa->next = NULL;
1480                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1481                         new_wa->address = target->working_area;
1482                         new_wa->backup = NULL;
1483                         new_wa->user = NULL;
1484                         new_wa->free = true;
1485                 }
1486
1487                 target->working_areas = new_wa;
1488         }
1489
1490         /* only allocate multiples of 4 byte */
1491         if (size % 4)
1492                 size = (size + 3) & (~3UL);
1493
1494         struct working_area *c = target->working_areas;
1495
1496         /* Find the first large enough working area */
1497         while (c) {
1498                 if (c->free && c->size >= size)
1499                         break;
1500                 c = c->next;
1501         }
1502
1503         if (c == NULL)
1504                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1505
1506         /* Split the working area into the requested size */
1507         target_split_working_area(c, size);
1508
1509         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1510
1511         if (target->backup_working_area) {
1512                 if (c->backup == NULL) {
1513                         c->backup = malloc(c->size);
1514                         if (c->backup == NULL)
1515                                 return ERROR_FAIL;
1516                 }
1517
1518                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1519                 if (retval != ERROR_OK)
1520                         return retval;
1521         }
1522
1523         /* mark as used, and return the new (reused) area */
1524         c->free = false;
1525         *area = c;
1526
1527         /* user pointer */
1528         c->user = area;
1529
1530         print_wa_layout(target);
1531
1532         return ERROR_OK;
1533 }
1534
1535 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1536 {
1537         int retval;
1538
1539         retval = target_alloc_working_area_try(target, size, area);
1540         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1541                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1542         return retval;
1543
1544 }
1545
1546 static int target_restore_working_area(struct target *target, struct working_area *area)
1547 {
1548         int retval = ERROR_OK;
1549
1550         if (target->backup_working_area && area->backup != NULL) {
1551                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1552                 if (retval != ERROR_OK)
1553                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1554                                         area->size, area->address);
1555         }
1556
1557         return retval;
1558 }
1559
1560 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1561 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1562 {
1563         int retval = ERROR_OK;
1564
1565         if (area->free)
1566                 return retval;
1567
1568         if (restore) {
1569                 retval = target_restore_working_area(target, area);
1570                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1571                 if (retval != ERROR_OK)
1572                         return retval;
1573         }
1574
1575         area->free = true;
1576
1577         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1578                         area->size, area->address);
1579
1580         /* mark user pointer invalid */
1581         /* TODO: Is this really safe? It points to some previous caller's memory.
1582          * How could we know that the area pointer is still in that place and not
1583          * some other vital data? What's the purpose of this, anyway? */
1584         *area->user = NULL;
1585         area->user = NULL;
1586
1587         target_merge_working_areas(target);
1588
1589         print_wa_layout(target);
1590
1591         return retval;
1592 }
1593
1594 int target_free_working_area(struct target *target, struct working_area *area)
1595 {
1596         return target_free_working_area_restore(target, area, 1);
1597 }
1598
1599 /* free resources and restore memory, if restoring memory fails,
1600  * free up resources anyway
1601  */
1602 static void target_free_all_working_areas_restore(struct target *target, int restore)
1603 {
1604         struct working_area *c = target->working_areas;
1605
1606         LOG_DEBUG("freeing all working areas");
1607
1608         /* Loop through all areas, restoring the allocated ones and marking them as free */
1609         while (c) {
1610                 if (!c->free) {
1611                         if (restore)
1612                                 target_restore_working_area(target, c);
1613                         c->free = true;
1614                         *c->user = NULL; /* Same as above */
1615                         c->user = NULL;
1616                 }
1617                 c = c->next;
1618         }
1619
1620         /* Run a merge pass to combine all areas into one */
1621         target_merge_working_areas(target);
1622
1623         print_wa_layout(target);
1624 }
1625
1626 void target_free_all_working_areas(struct target *target)
1627 {
1628         target_free_all_working_areas_restore(target, 1);
1629 }
1630
1631 /* Find the largest number of bytes that can be allocated */
1632 uint32_t target_get_working_area_avail(struct target *target)
1633 {
1634         struct working_area *c = target->working_areas;
1635         uint32_t max_size = 0;
1636
1637         if (c == NULL)
1638                 return target->working_area_size;
1639
1640         while (c) {
1641                 if (c->free && max_size < c->size)
1642                         max_size = c->size;
1643
1644                 c = c->next;
1645         }
1646
1647         return max_size;
1648 }
1649
1650 int target_arch_state(struct target *target)
1651 {
1652         int retval;
1653         if (target == NULL) {
1654                 LOG_USER("No target has been configured");
1655                 return ERROR_OK;
1656         }
1657
1658         LOG_USER("target state: %s", target_state_name(target));
1659
1660         if (target->state != TARGET_HALTED)
1661                 return ERROR_OK;
1662
1663         retval = target->type->arch_state(target);
1664         return retval;
1665 }
1666
1667 /* Single aligned words are guaranteed to use 16 or 32 bit access
1668  * mode respectively, otherwise data is handled as quickly as
1669  * possible
1670  */
1671 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1672 {
1673         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1674                         (int)size, (unsigned)address);
1675
1676         if (!target_was_examined(target)) {
1677                 LOG_ERROR("Target not examined yet");
1678                 return ERROR_FAIL;
1679         }
1680
1681         if (size == 0)
1682                 return ERROR_OK;
1683
1684         if ((address + size - 1) < address) {
1685                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1686                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1687                                   (unsigned)address,
1688                                   (unsigned)size);
1689                 return ERROR_FAIL;
1690         }
1691
1692         return target->type->write_buffer(target, address, size, buffer);
1693 }
1694
1695 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1696 {
1697         int retval = ERROR_OK;
1698
1699         if (((address % 2) == 0) && (size == 2))
1700                 return target_write_memory(target, address, 2, 1, buffer);
1701
1702         /* handle unaligned head bytes */
1703         if (address % 4) {
1704                 uint32_t unaligned = 4 - (address % 4);
1705
1706                 if (unaligned > size)
1707                         unaligned = size;
1708
1709                 retval = target_write_memory(target, address, 1, unaligned, buffer);
1710                 if (retval != ERROR_OK)
1711                         return retval;
1712
1713                 buffer += unaligned;
1714                 address += unaligned;
1715                 size -= unaligned;
1716         }
1717
1718         /* handle aligned words */
1719         if (size >= 4) {
1720                 int aligned = size - (size % 4);
1721
1722                 /* use bulk writes above a certain limit. This may have to be changed */
1723                 if (aligned > 128) {
1724                         retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer);
1725                         if (retval != ERROR_OK)
1726                                 return retval;
1727                 } else {
1728                         retval = target_write_memory(target, address, 4, aligned / 4, buffer);
1729                         if (retval != ERROR_OK)
1730                                 return retval;
1731                 }
1732
1733                 buffer += aligned;
1734                 address += aligned;
1735                 size -= aligned;
1736         }
1737
1738         /* handle tail writes of less than 4 bytes */
1739         if (size > 0) {
1740                 retval = target_write_memory(target, address, 1, size, buffer);
1741                 if (retval != ERROR_OK)
1742                         return retval;
1743         }
1744
1745         return retval;
1746 }
1747
1748 /* Single aligned words are guaranteed to use 16 or 32 bit access
1749  * mode respectively, otherwise data is handled as quickly as
1750  * possible
1751  */
1752 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1753 {
1754         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1755                           (int)size, (unsigned)address);
1756
1757         if (!target_was_examined(target)) {
1758                 LOG_ERROR("Target not examined yet");
1759                 return ERROR_FAIL;
1760         }
1761
1762         if (size == 0)
1763                 return ERROR_OK;
1764
1765         if ((address + size - 1) < address) {
1766                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1767                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1768                                   address,
1769                                   size);
1770                 return ERROR_FAIL;
1771         }
1772
1773         return target->type->read_buffer(target, address, size, buffer);
1774 }
1775
1776 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1777 {
1778         int retval = ERROR_OK;
1779
1780         if (((address % 2) == 0) && (size == 2))
1781                 return target_read_memory(target, address, 2, 1, buffer);
1782
1783         /* handle unaligned head bytes */
1784         if (address % 4) {
1785                 uint32_t unaligned = 4 - (address % 4);
1786
1787                 if (unaligned > size)
1788                         unaligned = size;
1789
1790                 retval = target_read_memory(target, address, 1, unaligned, buffer);
1791                 if (retval != ERROR_OK)
1792                         return retval;
1793
1794                 buffer += unaligned;
1795                 address += unaligned;
1796                 size -= unaligned;
1797         }
1798
1799         /* handle aligned words */
1800         if (size >= 4) {
1801                 int aligned = size - (size % 4);
1802
1803                 retval = target_read_memory(target, address, 4, aligned / 4, buffer);
1804                 if (retval != ERROR_OK)
1805                         return retval;
1806
1807                 buffer += aligned;
1808                 address += aligned;
1809                 size -= aligned;
1810         }
1811
1812         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1813         if (size        >= 2) {
1814                 int aligned = size - (size % 2);
1815                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1816                 if (retval != ERROR_OK)
1817                         return retval;
1818
1819                 buffer += aligned;
1820                 address += aligned;
1821                 size -= aligned;
1822         }
1823         /* handle tail writes of less than 4 bytes */
1824         if (size > 0) {
1825                 retval = target_read_memory(target, address, 1, size, buffer);
1826                 if (retval != ERROR_OK)
1827                         return retval;
1828         }
1829
1830         return ERROR_OK;
1831 }
1832
1833 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1834 {
1835         uint8_t *buffer;
1836         int retval;
1837         uint32_t i;
1838         uint32_t checksum = 0;
1839         if (!target_was_examined(target)) {
1840                 LOG_ERROR("Target not examined yet");
1841                 return ERROR_FAIL;
1842         }
1843
1844         retval = target->type->checksum_memory(target, address, size, &checksum);
1845         if (retval != ERROR_OK) {
1846                 buffer = malloc(size);
1847                 if (buffer == NULL) {
1848                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1849                         return ERROR_COMMAND_SYNTAX_ERROR;
1850                 }
1851                 retval = target_read_buffer(target, address, size, buffer);
1852                 if (retval != ERROR_OK) {
1853                         free(buffer);
1854                         return retval;
1855                 }
1856
1857                 /* convert to target endianness */
1858                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
1859                         uint32_t target_data;
1860                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1861                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1862                 }
1863
1864                 retval = image_calculate_checksum(buffer, size, &checksum);
1865                 free(buffer);
1866         }
1867
1868         *crc = checksum;
1869
1870         return retval;
1871 }
1872
1873 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1874 {
1875         int retval;
1876         if (!target_was_examined(target)) {
1877                 LOG_ERROR("Target not examined yet");
1878                 return ERROR_FAIL;
1879         }
1880
1881         if (target->type->blank_check_memory == 0)
1882                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1883
1884         retval = target->type->blank_check_memory(target, address, size, blank);
1885
1886         return retval;
1887 }
1888
1889 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1890 {
1891         uint8_t value_buf[4];
1892         if (!target_was_examined(target)) {
1893                 LOG_ERROR("Target not examined yet");
1894                 return ERROR_FAIL;
1895         }
1896
1897         int retval = target_read_memory(target, address, 4, 1, value_buf);
1898
1899         if (retval == ERROR_OK) {
1900                 *value = target_buffer_get_u32(target, value_buf);
1901                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1902                                   address,
1903                                   *value);
1904         } else {
1905                 *value = 0x0;
1906                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1907                                   address);
1908         }
1909
1910         return retval;
1911 }
1912
1913 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1914 {
1915         uint8_t value_buf[2];
1916         if (!target_was_examined(target)) {
1917                 LOG_ERROR("Target not examined yet");
1918                 return ERROR_FAIL;
1919         }
1920
1921         int retval = target_read_memory(target, address, 2, 1, value_buf);
1922
1923         if (retval == ERROR_OK) {
1924                 *value = target_buffer_get_u16(target, value_buf);
1925                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1926                                   address,
1927                                   *value);
1928         } else {
1929                 *value = 0x0;
1930                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1931                                   address);
1932         }
1933
1934         return retval;
1935 }
1936
1937 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1938 {
1939         int retval = target_read_memory(target, address, 1, 1, value);
1940         if (!target_was_examined(target)) {
1941                 LOG_ERROR("Target not examined yet");
1942                 return ERROR_FAIL;
1943         }
1944
1945         if (retval == ERROR_OK) {
1946                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1947                                   address,
1948                                   *value);
1949         } else {
1950                 *value = 0x0;
1951                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1952                                   address);
1953         }
1954
1955         return retval;
1956 }
1957
1958 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1959 {
1960         int retval;
1961         uint8_t value_buf[4];
1962         if (!target_was_examined(target)) {
1963                 LOG_ERROR("Target not examined yet");
1964                 return ERROR_FAIL;
1965         }
1966
1967         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1968                           address,
1969                           value);
1970
1971         target_buffer_set_u32(target, value_buf, value);
1972         retval = target_write_memory(target, address, 4, 1, value_buf);
1973         if (retval != ERROR_OK)
1974                 LOG_DEBUG("failed: %i", retval);
1975
1976         return retval;
1977 }
1978
1979 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
1980 {
1981         int retval;
1982         uint8_t value_buf[2];
1983         if (!target_was_examined(target)) {
1984                 LOG_ERROR("Target not examined yet");
1985                 return ERROR_FAIL;
1986         }
1987
1988         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
1989                           address,
1990                           value);
1991
1992         target_buffer_set_u16(target, value_buf, value);
1993         retval = target_write_memory(target, address, 2, 1, value_buf);
1994         if (retval != ERROR_OK)
1995                 LOG_DEBUG("failed: %i", retval);
1996
1997         return retval;
1998 }
1999
2000 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2001 {
2002         int retval;
2003         if (!target_was_examined(target)) {
2004                 LOG_ERROR("Target not examined yet");
2005                 return ERROR_FAIL;
2006         }
2007
2008         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2009                           address, value);
2010
2011         retval = target_write_memory(target, address, 1, 1, &value);
2012         if (retval != ERROR_OK)
2013                 LOG_DEBUG("failed: %i", retval);
2014
2015         return retval;
2016 }
2017
2018 static int find_target(struct command_context *cmd_ctx, const char *name)
2019 {
2020         struct target *target = get_target(name);
2021         if (target == NULL) {
2022                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2023                 return ERROR_FAIL;
2024         }
2025         if (!target->tap->enabled) {
2026                 LOG_USER("Target: TAP %s is disabled, "
2027                          "can't be the current target\n",
2028                          target->tap->dotted_name);
2029                 return ERROR_FAIL;
2030         }
2031
2032         cmd_ctx->current_target = target->target_number;
2033         return ERROR_OK;
2034 }
2035
2036
2037 COMMAND_HANDLER(handle_targets_command)
2038 {
2039         int retval = ERROR_OK;
2040         if (CMD_ARGC == 1) {
2041                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2042                 if (retval == ERROR_OK) {
2043                         /* we're done! */
2044                         return retval;
2045                 }
2046         }
2047
2048         struct target *target = all_targets;
2049         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2050         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2051         while (target) {
2052                 const char *state;
2053                 char marker = ' ';
2054
2055                 if (target->tap->enabled)
2056                         state = target_state_name(target);
2057                 else
2058                         state = "tap-disabled";
2059
2060                 if (CMD_CTX->current_target == target->target_number)
2061                         marker = '*';
2062
2063                 /* keep columns lined up to match the headers above */
2064                 command_print(CMD_CTX,
2065                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2066                                 target->target_number,
2067                                 marker,
2068                                 target_name(target),
2069                                 target_type_name(target),
2070                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2071                                         target->endianness)->name,
2072                                 target->tap->dotted_name,
2073                                 state);
2074                 target = target->next;
2075         }
2076
2077         return retval;
2078 }
2079
2080 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2081
2082 static int powerDropout;
2083 static int srstAsserted;
2084
2085 static int runPowerRestore;
2086 static int runPowerDropout;
2087 static int runSrstAsserted;
2088 static int runSrstDeasserted;
2089
2090 static int sense_handler(void)
2091 {
2092         static int prevSrstAsserted;
2093         static int prevPowerdropout;
2094
2095         int retval = jtag_power_dropout(&powerDropout);
2096         if (retval != ERROR_OK)
2097                 return retval;
2098
2099         int powerRestored;
2100         powerRestored = prevPowerdropout && !powerDropout;
2101         if (powerRestored)
2102                 runPowerRestore = 1;
2103
2104         long long current = timeval_ms();
2105         static long long lastPower;
2106         int waitMore = lastPower + 2000 > current;
2107         if (powerDropout && !waitMore) {
2108                 runPowerDropout = 1;
2109                 lastPower = current;
2110         }
2111
2112         retval = jtag_srst_asserted(&srstAsserted);
2113         if (retval != ERROR_OK)
2114                 return retval;
2115
2116         int srstDeasserted;
2117         srstDeasserted = prevSrstAsserted && !srstAsserted;
2118
2119         static long long lastSrst;
2120         waitMore = lastSrst + 2000 > current;
2121         if (srstDeasserted && !waitMore) {
2122                 runSrstDeasserted = 1;
2123                 lastSrst = current;
2124         }
2125
2126         if (!prevSrstAsserted && srstAsserted)
2127                 runSrstAsserted = 1;
2128
2129         prevSrstAsserted = srstAsserted;
2130         prevPowerdropout = powerDropout;
2131
2132         if (srstDeasserted || powerRestored) {
2133                 /* Other than logging the event we can't do anything here.
2134                  * Issuing a reset is a particularly bad idea as we might
2135                  * be inside a reset already.
2136                  */
2137         }
2138
2139         return ERROR_OK;
2140 }
2141
2142 static int backoff_times;
2143 static int backoff_count;
2144
2145 /* process target state changes */
2146 static int handle_target(void *priv)
2147 {
2148         Jim_Interp *interp = (Jim_Interp *)priv;
2149         int retval = ERROR_OK;
2150
2151         if (!is_jtag_poll_safe()) {
2152                 /* polling is disabled currently */
2153                 return ERROR_OK;
2154         }
2155
2156         /* we do not want to recurse here... */
2157         static int recursive;
2158         if (!recursive) {
2159                 recursive = 1;
2160                 sense_handler();
2161                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2162                  * We need to avoid an infinite loop/recursion here and we do that by
2163                  * clearing the flags after running these events.
2164                  */
2165                 int did_something = 0;
2166                 if (runSrstAsserted) {
2167                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2168                         Jim_Eval(interp, "srst_asserted");
2169                         did_something = 1;
2170                 }
2171                 if (runSrstDeasserted) {
2172                         Jim_Eval(interp, "srst_deasserted");
2173                         did_something = 1;
2174                 }
2175                 if (runPowerDropout) {
2176                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2177                         Jim_Eval(interp, "power_dropout");
2178                         did_something = 1;
2179                 }
2180                 if (runPowerRestore) {
2181                         Jim_Eval(interp, "power_restore");
2182                         did_something = 1;
2183                 }
2184
2185                 if (did_something) {
2186                         /* clear detect flags */
2187                         sense_handler();
2188                 }
2189
2190                 /* clear action flags */
2191
2192                 runSrstAsserted = 0;
2193                 runSrstDeasserted = 0;
2194                 runPowerRestore = 0;
2195                 runPowerDropout = 0;
2196
2197                 recursive = 0;
2198         }
2199
2200         if (backoff_times > backoff_count) {
2201                 /* do not poll this time as we failed previously */
2202                 backoff_count++;
2203                 return ERROR_OK;
2204         }
2205         backoff_count = 0;
2206
2207         /* Poll targets for state changes unless that's globally disabled.
2208          * Skip targets that are currently disabled.
2209          */
2210         for (struct target *target = all_targets;
2211                         is_jtag_poll_safe() && target;
2212                         target = target->next) {
2213                 if (!target->tap->enabled)
2214                         continue;
2215
2216                 /* only poll target if we've got power and srst isn't asserted */
2217                 if (!powerDropout && !srstAsserted) {
2218                         /* polling may fail silently until the target has been examined */
2219                         retval = target_poll(target);
2220                         if (retval != ERROR_OK) {
2221                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2222                                 if (backoff_times * polling_interval < 5000) {
2223                                         backoff_times *= 2;
2224                                         backoff_times++;
2225                                 }
2226                                 LOG_USER("Polling target failed, GDB will be halted. Polling again in %dms",
2227                                                 backoff_times * polling_interval);
2228
2229                                 /* Tell GDB to halt the debugger. This allows the user to
2230                                  * run monitor commands to handle the situation.
2231                                  */
2232                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2233                                 return retval;
2234                         }
2235                         /* Since we succeeded, we reset backoff count */
2236                         if (backoff_times > 0)
2237                                 LOG_USER("Polling succeeded again");
2238                         backoff_times = 0;
2239                 }
2240         }
2241
2242         return retval;
2243 }
2244
2245 COMMAND_HANDLER(handle_reg_command)
2246 {
2247         struct target *target;
2248         struct reg *reg = NULL;
2249         unsigned count = 0;
2250         char *value;
2251
2252         LOG_DEBUG("-");
2253
2254         target = get_current_target(CMD_CTX);
2255
2256         /* list all available registers for the current target */
2257         if (CMD_ARGC == 0) {
2258                 struct reg_cache *cache = target->reg_cache;
2259
2260                 count = 0;
2261                 while (cache) {
2262                         unsigned i;
2263
2264                         command_print(CMD_CTX, "===== %s", cache->name);
2265
2266                         for (i = 0, reg = cache->reg_list;
2267                                         i < cache->num_regs;
2268                                         i++, reg++, count++) {
2269                                 /* only print cached values if they are valid */
2270                                 if (reg->valid) {
2271                                         value = buf_to_str(reg->value,
2272                                                         reg->size, 16);
2273                                         command_print(CMD_CTX,
2274                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2275                                                         count, reg->name,
2276                                                         reg->size, value,
2277                                                         reg->dirty
2278                                                                 ? " (dirty)"
2279                                                                 : "");
2280                                         free(value);
2281                                 } else {
2282                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2283                                                           count, reg->name,
2284                                                           reg->size) ;
2285                                 }
2286                         }
2287                         cache = cache->next;
2288                 }
2289
2290                 return ERROR_OK;
2291         }
2292
2293         /* access a single register by its ordinal number */
2294         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2295                 unsigned num;
2296                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2297
2298                 struct reg_cache *cache = target->reg_cache;
2299                 count = 0;
2300                 while (cache) {
2301                         unsigned i;
2302                         for (i = 0; i < cache->num_regs; i++) {
2303                                 if (count++ == num) {
2304                                         reg = &cache->reg_list[i];
2305                                         break;
2306                                 }
2307                         }
2308                         if (reg)
2309                                 break;
2310                         cache = cache->next;
2311                 }
2312
2313                 if (!reg) {
2314                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2315                                         "has only %i registers (0 - %i)", num, count, count - 1);
2316                         return ERROR_OK;
2317                 }
2318         } else {
2319                 /* access a single register by its name */
2320                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2321
2322                 if (!reg) {
2323                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2324                         return ERROR_OK;
2325                 }
2326         }
2327
2328         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2329
2330         /* display a register */
2331         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2332                         && (CMD_ARGV[1][0] <= '9')))) {
2333                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2334                         reg->valid = 0;
2335
2336                 if (reg->valid == 0)
2337                         reg->type->get(reg);
2338                 value = buf_to_str(reg->value, reg->size, 16);
2339                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2340                 free(value);
2341                 return ERROR_OK;
2342         }
2343
2344         /* set register value */
2345         if (CMD_ARGC == 2) {
2346                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2347                 if (buf == NULL)
2348                         return ERROR_FAIL;
2349                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2350
2351                 reg->type->set(reg, buf);
2352
2353                 value = buf_to_str(reg->value, reg->size, 16);
2354                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2355                 free(value);
2356
2357                 free(buf);
2358
2359                 return ERROR_OK;
2360         }
2361
2362         return ERROR_COMMAND_SYNTAX_ERROR;
2363 }
2364
2365 COMMAND_HANDLER(handle_poll_command)
2366 {
2367         int retval = ERROR_OK;
2368         struct target *target = get_current_target(CMD_CTX);
2369
2370         if (CMD_ARGC == 0) {
2371                 command_print(CMD_CTX, "background polling: %s",
2372                                 jtag_poll_get_enabled() ? "on" : "off");
2373                 command_print(CMD_CTX, "TAP: %s (%s)",
2374                                 target->tap->dotted_name,
2375                                 target->tap->enabled ? "enabled" : "disabled");
2376                 if (!target->tap->enabled)
2377                         return ERROR_OK;
2378                 retval = target_poll(target);
2379                 if (retval != ERROR_OK)
2380                         return retval;
2381                 retval = target_arch_state(target);
2382                 if (retval != ERROR_OK)
2383                         return retval;
2384         } else if (CMD_ARGC == 1) {
2385                 bool enable;
2386                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2387                 jtag_poll_set_enabled(enable);
2388         } else
2389                 return ERROR_COMMAND_SYNTAX_ERROR;
2390
2391         return retval;
2392 }
2393
2394 COMMAND_HANDLER(handle_wait_halt_command)
2395 {
2396         if (CMD_ARGC > 1)
2397                 return ERROR_COMMAND_SYNTAX_ERROR;
2398
2399         unsigned ms = 5000;
2400         if (1 == CMD_ARGC) {
2401                 int retval = parse_uint(CMD_ARGV[0], &ms);
2402                 if (ERROR_OK != retval)
2403                         return ERROR_COMMAND_SYNTAX_ERROR;
2404                 /* convert seconds (given) to milliseconds (needed) */
2405                 ms *= 1000;
2406         }
2407
2408         struct target *target = get_current_target(CMD_CTX);
2409         return target_wait_state(target, TARGET_HALTED, ms);
2410 }
2411
2412 /* wait for target state to change. The trick here is to have a low
2413  * latency for short waits and not to suck up all the CPU time
2414  * on longer waits.
2415  *
2416  * After 500ms, keep_alive() is invoked
2417  */
2418 int target_wait_state(struct target *target, enum target_state state, int ms)
2419 {
2420         int retval;
2421         long long then = 0, cur;
2422         int once = 1;
2423
2424         for (;;) {
2425                 retval = target_poll(target);
2426                 if (retval != ERROR_OK)
2427                         return retval;
2428                 if (target->state == state)
2429                         break;
2430                 cur = timeval_ms();
2431                 if (once) {
2432                         once = 0;
2433                         then = timeval_ms();
2434                         LOG_DEBUG("waiting for target %s...",
2435                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2436                 }
2437
2438                 if (cur-then > 500)
2439                         keep_alive();
2440
2441                 if ((cur-then) > ms) {
2442                         LOG_ERROR("timed out while waiting for target %s",
2443                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2444                         return ERROR_FAIL;
2445                 }
2446         }
2447
2448         return ERROR_OK;
2449 }
2450
2451 COMMAND_HANDLER(handle_halt_command)
2452 {
2453         LOG_DEBUG("-");
2454
2455         struct target *target = get_current_target(CMD_CTX);
2456         int retval = target_halt(target);
2457         if (ERROR_OK != retval)
2458                 return retval;
2459
2460         if (CMD_ARGC == 1) {
2461                 unsigned wait_local;
2462                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2463                 if (ERROR_OK != retval)
2464                         return ERROR_COMMAND_SYNTAX_ERROR;
2465                 if (!wait_local)
2466                         return ERROR_OK;
2467         }
2468
2469         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2470 }
2471
2472 COMMAND_HANDLER(handle_soft_reset_halt_command)
2473 {
2474         struct target *target = get_current_target(CMD_CTX);
2475
2476         LOG_USER("requesting target halt and executing a soft reset");
2477
2478         target->type->soft_reset_halt(target);
2479
2480         return ERROR_OK;
2481 }
2482
2483 COMMAND_HANDLER(handle_reset_command)
2484 {
2485         if (CMD_ARGC > 1)
2486                 return ERROR_COMMAND_SYNTAX_ERROR;
2487
2488         enum target_reset_mode reset_mode = RESET_RUN;
2489         if (CMD_ARGC == 1) {
2490                 const Jim_Nvp *n;
2491                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2492                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2493                         return ERROR_COMMAND_SYNTAX_ERROR;
2494                 reset_mode = n->value;
2495         }
2496
2497         /* reset *all* targets */
2498         return target_process_reset(CMD_CTX, reset_mode);
2499 }
2500
2501
2502 COMMAND_HANDLER(handle_resume_command)
2503 {
2504         int current = 1;
2505         if (CMD_ARGC > 1)
2506                 return ERROR_COMMAND_SYNTAX_ERROR;
2507
2508         struct target *target = get_current_target(CMD_CTX);
2509
2510         /* with no CMD_ARGV, resume from current pc, addr = 0,
2511          * with one arguments, addr = CMD_ARGV[0],
2512          * handle breakpoints, not debugging */
2513         uint32_t addr = 0;
2514         if (CMD_ARGC == 1) {
2515                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2516                 current = 0;
2517         }
2518
2519         return target_resume(target, current, addr, 1, 0);
2520 }
2521
2522 COMMAND_HANDLER(handle_step_command)
2523 {
2524         if (CMD_ARGC > 1)
2525                 return ERROR_COMMAND_SYNTAX_ERROR;
2526
2527         LOG_DEBUG("-");
2528
2529         /* with no CMD_ARGV, step from current pc, addr = 0,
2530          * with one argument addr = CMD_ARGV[0],
2531          * handle breakpoints, debugging */
2532         uint32_t addr = 0;
2533         int current_pc = 1;
2534         if (CMD_ARGC == 1) {
2535                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2536                 current_pc = 0;
2537         }
2538
2539         struct target *target = get_current_target(CMD_CTX);
2540
2541         return target->type->step(target, current_pc, addr, 1);
2542 }
2543
2544 static void handle_md_output(struct command_context *cmd_ctx,
2545                 struct target *target, uint32_t address, unsigned size,
2546                 unsigned count, const uint8_t *buffer)
2547 {
2548         const unsigned line_bytecnt = 32;
2549         unsigned line_modulo = line_bytecnt / size;
2550
2551         char output[line_bytecnt * 4 + 1];
2552         unsigned output_len = 0;
2553
2554         const char *value_fmt;
2555         switch (size) {
2556         case 4:
2557                 value_fmt = "%8.8x ";
2558                 break;
2559         case 2:
2560                 value_fmt = "%4.4x ";
2561                 break;
2562         case 1:
2563                 value_fmt = "%2.2x ";
2564                 break;
2565         default:
2566                 /* "can't happen", caller checked */
2567                 LOG_ERROR("invalid memory read size: %u", size);
2568                 return;
2569         }
2570
2571         for (unsigned i = 0; i < count; i++) {
2572                 if (i % line_modulo == 0) {
2573                         output_len += snprintf(output + output_len,
2574                                         sizeof(output) - output_len,
2575                                         "0x%8.8x: ",
2576                                         (unsigned)(address + (i*size)));
2577                 }
2578
2579                 uint32_t value = 0;
2580                 const uint8_t *value_ptr = buffer + i * size;
2581                 switch (size) {
2582                 case 4:
2583                         value = target_buffer_get_u32(target, value_ptr);
2584                         break;
2585                 case 2:
2586                         value = target_buffer_get_u16(target, value_ptr);
2587                         break;
2588                 case 1:
2589                         value = *value_ptr;
2590                 }
2591                 output_len += snprintf(output + output_len,
2592                                 sizeof(output) - output_len,
2593                                 value_fmt, value);
2594
2595                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2596                         command_print(cmd_ctx, "%s", output);
2597                         output_len = 0;
2598                 }
2599         }
2600 }
2601
2602 COMMAND_HANDLER(handle_md_command)
2603 {
2604         if (CMD_ARGC < 1)
2605                 return ERROR_COMMAND_SYNTAX_ERROR;
2606
2607         unsigned size = 0;
2608         switch (CMD_NAME[2]) {
2609         case 'w':
2610                 size = 4;
2611                 break;
2612         case 'h':
2613                 size = 2;
2614                 break;
2615         case 'b':
2616                 size = 1;
2617                 break;
2618         default:
2619                 return ERROR_COMMAND_SYNTAX_ERROR;
2620         }
2621
2622         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2623         int (*fn)(struct target *target,
2624                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2625         if (physical) {
2626                 CMD_ARGC--;
2627                 CMD_ARGV++;
2628                 fn = target_read_phys_memory;
2629         } else
2630                 fn = target_read_memory;
2631         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2632                 return ERROR_COMMAND_SYNTAX_ERROR;
2633
2634         uint32_t address;
2635         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2636
2637         unsigned count = 1;
2638         if (CMD_ARGC == 2)
2639                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2640
2641         uint8_t *buffer = calloc(count, size);
2642
2643         struct target *target = get_current_target(CMD_CTX);
2644         int retval = fn(target, address, size, count, buffer);
2645         if (ERROR_OK == retval)
2646                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2647
2648         free(buffer);
2649
2650         return retval;
2651 }
2652
2653 typedef int (*target_write_fn)(struct target *target,
2654                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2655
2656 static int target_write_memory_fast(struct target *target,
2657                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2658 {
2659         return target_write_buffer(target, address, size * count, buffer);
2660 }
2661
2662 static int target_fill_mem(struct target *target,
2663                 uint32_t address,
2664                 target_write_fn fn,
2665                 unsigned data_size,
2666                 /* value */
2667                 uint32_t b,
2668                 /* count */
2669                 unsigned c)
2670 {
2671         /* We have to write in reasonably large chunks to be able
2672          * to fill large memory areas with any sane speed */
2673         const unsigned chunk_size = 16384;
2674         uint8_t *target_buf = malloc(chunk_size * data_size);
2675         if (target_buf == NULL) {
2676                 LOG_ERROR("Out of memory");
2677                 return ERROR_FAIL;
2678         }
2679
2680         for (unsigned i = 0; i < chunk_size; i++) {
2681                 switch (data_size) {
2682                 case 4:
2683                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2684                         break;
2685                 case 2:
2686                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2687                         break;
2688                 case 1:
2689                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2690                         break;
2691                 default:
2692                         exit(-1);
2693                 }
2694         }
2695
2696         int retval = ERROR_OK;
2697
2698         for (unsigned x = 0; x < c; x += chunk_size) {
2699                 unsigned current;
2700                 current = c - x;
2701                 if (current > chunk_size)
2702                         current = chunk_size;
2703                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2704                 if (retval != ERROR_OK)
2705                         break;
2706                 /* avoid GDB timeouts */
2707                 keep_alive();
2708         }
2709         free(target_buf);
2710
2711         return retval;
2712 }
2713
2714
2715 COMMAND_HANDLER(handle_mw_command)
2716 {
2717         if (CMD_ARGC < 2)
2718                 return ERROR_COMMAND_SYNTAX_ERROR;
2719         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2720         target_write_fn fn;
2721         if (physical) {
2722                 CMD_ARGC--;
2723                 CMD_ARGV++;
2724                 fn = target_write_phys_memory;
2725         } else
2726                 fn = target_write_memory_fast;
2727         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2728                 return ERROR_COMMAND_SYNTAX_ERROR;
2729
2730         uint32_t address;
2731         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2732
2733         uint32_t value;
2734         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2735
2736         unsigned count = 1;
2737         if (CMD_ARGC == 3)
2738                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2739
2740         struct target *target = get_current_target(CMD_CTX);
2741         unsigned wordsize;
2742         switch (CMD_NAME[2]) {
2743                 case 'w':
2744                         wordsize = 4;
2745                         break;
2746                 case 'h':
2747                         wordsize = 2;
2748                         break;
2749                 case 'b':
2750                         wordsize = 1;
2751                         break;
2752                 default:
2753                         return ERROR_COMMAND_SYNTAX_ERROR;
2754         }
2755
2756         return target_fill_mem(target, address, fn, wordsize, value, count);
2757 }
2758
2759 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2760                 uint32_t *min_address, uint32_t *max_address)
2761 {
2762         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2763                 return ERROR_COMMAND_SYNTAX_ERROR;
2764
2765         /* a base address isn't always necessary,
2766          * default to 0x0 (i.e. don't relocate) */
2767         if (CMD_ARGC >= 2) {
2768                 uint32_t addr;
2769                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2770                 image->base_address = addr;
2771                 image->base_address_set = 1;
2772         } else
2773                 image->base_address_set = 0;
2774
2775         image->start_address_set = 0;
2776
2777         if (CMD_ARGC >= 4)
2778                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2779         if (CMD_ARGC == 5) {
2780                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2781                 /* use size (given) to find max (required) */
2782                 *max_address += *min_address;
2783         }
2784
2785         if (*min_address > *max_address)
2786                 return ERROR_COMMAND_SYNTAX_ERROR;
2787
2788         return ERROR_OK;
2789 }
2790
2791 COMMAND_HANDLER(handle_load_image_command)
2792 {
2793         uint8_t *buffer;
2794         size_t buf_cnt;
2795         uint32_t image_size;
2796         uint32_t min_address = 0;
2797         uint32_t max_address = 0xffffffff;
2798         int i;
2799         struct image image;
2800
2801         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2802                         &image, &min_address, &max_address);
2803         if (ERROR_OK != retval)
2804                 return retval;
2805
2806         struct target *target = get_current_target(CMD_CTX);
2807
2808         struct duration bench;
2809         duration_start(&bench);
2810
2811         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2812                 return ERROR_OK;
2813
2814         image_size = 0x0;
2815         retval = ERROR_OK;
2816         for (i = 0; i < image.num_sections; i++) {
2817                 buffer = malloc(image.sections[i].size);
2818                 if (buffer == NULL) {
2819                         command_print(CMD_CTX,
2820                                                   "error allocating buffer for section (%d bytes)",
2821                                                   (int)(image.sections[i].size));
2822                         break;
2823                 }
2824
2825                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2826                 if (retval != ERROR_OK) {
2827                         free(buffer);
2828                         break;
2829                 }
2830
2831                 uint32_t offset = 0;
2832                 uint32_t length = buf_cnt;
2833
2834                 /* DANGER!!! beware of unsigned comparision here!!! */
2835
2836                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2837                                 (image.sections[i].base_address < max_address)) {
2838
2839                         if (image.sections[i].base_address < min_address) {
2840                                 /* clip addresses below */
2841                                 offset += min_address-image.sections[i].base_address;
2842                                 length -= offset;
2843                         }
2844
2845                         if (image.sections[i].base_address + buf_cnt > max_address)
2846                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2847
2848                         retval = target_write_buffer(target,
2849                                         image.sections[i].base_address + offset, length, buffer + offset);
2850                         if (retval != ERROR_OK) {
2851                                 free(buffer);
2852                                 break;
2853                         }
2854                         image_size += length;
2855                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2856                                         (unsigned int)length,
2857                                         image.sections[i].base_address + offset);
2858                 }
2859
2860                 free(buffer);
2861         }
2862
2863         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2864                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2865                                 "in %fs (%0.3f KiB/s)", image_size,
2866                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2867         }
2868
2869         image_close(&image);
2870
2871         return retval;
2872
2873 }
2874
2875 COMMAND_HANDLER(handle_dump_image_command)
2876 {
2877         struct fileio fileio;
2878         uint8_t *buffer;
2879         int retval, retvaltemp;
2880         uint32_t address, size;
2881         struct duration bench;
2882         struct target *target = get_current_target(CMD_CTX);
2883
2884         if (CMD_ARGC != 3)
2885                 return ERROR_COMMAND_SYNTAX_ERROR;
2886
2887         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2888         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2889
2890         uint32_t buf_size = (size > 4096) ? 4096 : size;
2891         buffer = malloc(buf_size);
2892         if (!buffer)
2893                 return ERROR_FAIL;
2894
2895         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2896         if (retval != ERROR_OK) {
2897                 free(buffer);
2898                 return retval;
2899         }
2900
2901         duration_start(&bench);
2902
2903         while (size > 0) {
2904                 size_t size_written;
2905                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2906                 retval = target_read_buffer(target, address, this_run_size, buffer);
2907                 if (retval != ERROR_OK)
2908                         break;
2909
2910                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2911                 if (retval != ERROR_OK)
2912                         break;
2913
2914                 size -= this_run_size;
2915                 address += this_run_size;
2916         }
2917
2918         free(buffer);
2919
2920         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2921                 int filesize;
2922                 retval = fileio_size(&fileio, &filesize);
2923                 if (retval != ERROR_OK)
2924                         return retval;
2925                 command_print(CMD_CTX,
2926                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2927                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2928         }
2929
2930         retvaltemp = fileio_close(&fileio);
2931         if (retvaltemp != ERROR_OK)
2932                 return retvaltemp;
2933
2934         return retval;
2935 }
2936
2937 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2938 {
2939         uint8_t *buffer;
2940         size_t buf_cnt;
2941         uint32_t image_size;
2942         int i;
2943         int retval;
2944         uint32_t checksum = 0;
2945         uint32_t mem_checksum = 0;
2946
2947         struct image image;
2948
2949         struct target *target = get_current_target(CMD_CTX);
2950
2951         if (CMD_ARGC < 1)
2952                 return ERROR_COMMAND_SYNTAX_ERROR;
2953
2954         if (!target) {
2955                 LOG_ERROR("no target selected");
2956                 return ERROR_FAIL;
2957         }
2958
2959         struct duration bench;
2960         duration_start(&bench);
2961
2962         if (CMD_ARGC >= 2) {
2963                 uint32_t addr;
2964                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2965                 image.base_address = addr;
2966                 image.base_address_set = 1;
2967         } else {
2968                 image.base_address_set = 0;
2969                 image.base_address = 0x0;
2970         }
2971
2972         image.start_address_set = 0;
2973
2974         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
2975         if (retval != ERROR_OK)
2976                 return retval;
2977
2978         image_size = 0x0;
2979         int diffs = 0;
2980         retval = ERROR_OK;
2981         for (i = 0; i < image.num_sections; i++) {
2982                 buffer = malloc(image.sections[i].size);
2983                 if (buffer == NULL) {
2984                         command_print(CMD_CTX,
2985                                         "error allocating buffer for section (%d bytes)",
2986                                         (int)(image.sections[i].size));
2987                         break;
2988                 }
2989                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2990                 if (retval != ERROR_OK) {
2991                         free(buffer);
2992                         break;
2993                 }
2994
2995                 if (verify) {
2996                         /* calculate checksum of image */
2997                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
2998                         if (retval != ERROR_OK) {
2999                                 free(buffer);
3000                                 break;
3001                         }
3002
3003                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3004                         if (retval != ERROR_OK) {
3005                                 free(buffer);
3006                                 break;
3007                         }
3008
3009                         if (checksum != mem_checksum) {
3010                                 /* failed crc checksum, fall back to a binary compare */
3011                                 uint8_t *data;
3012
3013                                 if (diffs == 0)
3014                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3015
3016                                 data = (uint8_t *)malloc(buf_cnt);
3017
3018                                 /* Can we use 32bit word accesses? */
3019                                 int size = 1;
3020                                 int count = buf_cnt;
3021                                 if ((count % 4) == 0) {
3022                                         size *= 4;
3023                                         count /= 4;
3024                                 }
3025                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3026                                 if (retval == ERROR_OK) {
3027                                         uint32_t t;
3028                                         for (t = 0; t < buf_cnt; t++) {
3029                                                 if (data[t] != buffer[t]) {
3030                                                         command_print(CMD_CTX,
3031                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3032                                                                                   diffs,
3033                                                                                   (unsigned)(t + image.sections[i].base_address),
3034                                                                                   data[t],
3035                                                                                   buffer[t]);
3036                                                         if (diffs++ >= 127) {
3037                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3038                                                                 free(data);
3039                                                                 free(buffer);
3040                                                                 goto done;
3041                                                         }
3042                                                 }
3043                                                 keep_alive();
3044                                         }
3045                                 }
3046                                 free(data);
3047                         }
3048                 } else {
3049                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3050                                                   image.sections[i].base_address,
3051                                                   buf_cnt);
3052                 }
3053
3054                 free(buffer);
3055                 image_size += buf_cnt;
3056         }
3057         if (diffs > 0)
3058                 command_print(CMD_CTX, "No more differences found.");
3059 done:
3060         if (diffs > 0)
3061                 retval = ERROR_FAIL;
3062         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3063                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3064                                 "in %fs (%0.3f KiB/s)", image_size,
3065                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3066         }
3067
3068         image_close(&image);
3069
3070         return retval;
3071 }
3072
3073 COMMAND_HANDLER(handle_verify_image_command)
3074 {
3075         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3076 }
3077
3078 COMMAND_HANDLER(handle_test_image_command)
3079 {
3080         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3081 }
3082
3083 static int handle_bp_command_list(struct command_context *cmd_ctx)
3084 {
3085         struct target *target = get_current_target(cmd_ctx);
3086         struct breakpoint *breakpoint = target->breakpoints;
3087         while (breakpoint) {
3088                 if (breakpoint->type == BKPT_SOFT) {
3089                         char *buf = buf_to_str(breakpoint->orig_instr,
3090                                         breakpoint->length, 16);
3091                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3092                                         breakpoint->address,
3093                                         breakpoint->length,
3094                                         breakpoint->set, buf);
3095                         free(buf);
3096                 } else {
3097                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3098                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3099                                                         breakpoint->asid,
3100                                                         breakpoint->length, breakpoint->set);
3101                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3102                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3103                                                         breakpoint->address,
3104                                                         breakpoint->length, breakpoint->set);
3105                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3106                                                         breakpoint->asid);
3107                         } else
3108                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3109                                                         breakpoint->address,
3110                                                         breakpoint->length, breakpoint->set);
3111                 }
3112
3113                 breakpoint = breakpoint->next;
3114         }
3115         return ERROR_OK;
3116 }
3117
3118 static int handle_bp_command_set(struct command_context *cmd_ctx,
3119                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3120 {
3121         struct target *target = get_current_target(cmd_ctx);
3122
3123         if (asid == 0) {
3124                 int retval = breakpoint_add(target, addr, length, hw);
3125                 if (ERROR_OK == retval)
3126                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3127                 else {
3128                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3129                         return retval;
3130                 }
3131         } else if (addr == 0) {
3132                 int retval = context_breakpoint_add(target, asid, length, hw);
3133                 if (ERROR_OK == retval)
3134                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3135                 else {
3136                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3137                         return retval;
3138                 }
3139         } else {
3140                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3141                 if (ERROR_OK == retval)
3142                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3143                 else {
3144                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3145                         return retval;
3146                 }
3147         }
3148         return ERROR_OK;
3149 }
3150
3151 COMMAND_HANDLER(handle_bp_command)
3152 {
3153         uint32_t addr;
3154         uint32_t asid;
3155         uint32_t length;
3156         int hw = BKPT_SOFT;
3157
3158         switch (CMD_ARGC) {
3159                 case 0:
3160                         return handle_bp_command_list(CMD_CTX);
3161
3162                 case 2:
3163                         asid = 0;
3164                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3165                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3166                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3167
3168                 case 3:
3169                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3170                                 hw = BKPT_HARD;
3171                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3172
3173                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3174
3175                                 asid = 0;
3176                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3177                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3178                                 hw = BKPT_HARD;
3179                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3180                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3181                                 addr = 0;
3182                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3183                         }
3184
3185                 case 4:
3186                         hw = BKPT_HARD;
3187                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3188                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3189                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3190                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3191
3192                 default:
3193                         return ERROR_COMMAND_SYNTAX_ERROR;
3194         }
3195 }
3196
3197 COMMAND_HANDLER(handle_rbp_command)
3198 {
3199         if (CMD_ARGC != 1)
3200                 return ERROR_COMMAND_SYNTAX_ERROR;
3201
3202         uint32_t addr;
3203         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3204
3205         struct target *target = get_current_target(CMD_CTX);
3206         breakpoint_remove(target, addr);
3207
3208         return ERROR_OK;
3209 }
3210
3211 COMMAND_HANDLER(handle_wp_command)
3212 {
3213         struct target *target = get_current_target(CMD_CTX);
3214
3215         if (CMD_ARGC == 0) {
3216                 struct watchpoint *watchpoint = target->watchpoints;
3217
3218                 while (watchpoint) {
3219                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3220                                         ", len: 0x%8.8" PRIx32
3221                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3222                                         ", mask: 0x%8.8" PRIx32,
3223                                         watchpoint->address,
3224                                         watchpoint->length,
3225                                         (int)watchpoint->rw,
3226                                         watchpoint->value,
3227                                         watchpoint->mask);
3228                         watchpoint = watchpoint->next;
3229                 }
3230                 return ERROR_OK;
3231         }
3232
3233         enum watchpoint_rw type = WPT_ACCESS;
3234         uint32_t addr = 0;
3235         uint32_t length = 0;
3236         uint32_t data_value = 0x0;
3237         uint32_t data_mask = 0xffffffff;
3238
3239         switch (CMD_ARGC) {
3240         case 5:
3241                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3242                 /* fall through */
3243         case 4:
3244                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3245                 /* fall through */
3246         case 3:
3247                 switch (CMD_ARGV[2][0]) {
3248                 case 'r':
3249                         type = WPT_READ;
3250                         break;
3251                 case 'w':
3252                         type = WPT_WRITE;
3253                         break;
3254                 case 'a':
3255                         type = WPT_ACCESS;
3256                         break;
3257                 default:
3258                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3259                         return ERROR_COMMAND_SYNTAX_ERROR;
3260                 }
3261                 /* fall through */
3262         case 2:
3263                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3264                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3265                 break;
3266
3267         default:
3268                 return ERROR_COMMAND_SYNTAX_ERROR;
3269         }
3270
3271         int retval = watchpoint_add(target, addr, length, type,
3272                         data_value, data_mask);
3273         if (ERROR_OK != retval)
3274                 LOG_ERROR("Failure setting watchpoints");
3275
3276         return retval;
3277 }
3278
3279 COMMAND_HANDLER(handle_rwp_command)
3280 {
3281         if (CMD_ARGC != 1)
3282                 return ERROR_COMMAND_SYNTAX_ERROR;
3283
3284         uint32_t addr;
3285         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3286
3287         struct target *target = get_current_target(CMD_CTX);
3288         watchpoint_remove(target, addr);
3289
3290         return ERROR_OK;
3291 }
3292
3293 /**
3294  * Translate a virtual address to a physical address.
3295  *
3296  * The low-level target implementation must have logged a detailed error
3297  * which is forwarded to telnet/GDB session.
3298  */
3299 COMMAND_HANDLER(handle_virt2phys_command)
3300 {
3301         if (CMD_ARGC != 1)
3302                 return ERROR_COMMAND_SYNTAX_ERROR;
3303
3304         uint32_t va;
3305         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3306         uint32_t pa;
3307
3308         struct target *target = get_current_target(CMD_CTX);
3309         int retval = target->type->virt2phys(target, va, &pa);
3310         if (retval == ERROR_OK)
3311                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3312
3313         return retval;
3314 }
3315
3316 static void writeData(FILE *f, const void *data, size_t len)
3317 {
3318         size_t written = fwrite(data, 1, len, f);
3319         if (written != len)
3320                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3321 }
3322
3323 static void writeLong(FILE *f, int l)
3324 {
3325         int i;
3326         for (i = 0; i < 4; i++) {
3327                 char c = (l >> (i*8))&0xff;
3328                 writeData(f, &c, 1);
3329         }
3330
3331 }
3332
3333 static void writeString(FILE *f, char *s)
3334 {
3335         writeData(f, s, strlen(s));
3336 }
3337
3338 /* Dump a gmon.out histogram file. */
3339 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3340 {
3341         uint32_t i;
3342         FILE *f = fopen(filename, "w");
3343         if (f == NULL)
3344                 return;
3345         writeString(f, "gmon");
3346         writeLong(f, 0x00000001); /* Version */
3347         writeLong(f, 0); /* padding */
3348         writeLong(f, 0); /* padding */
3349         writeLong(f, 0); /* padding */
3350
3351         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3352         writeData(f, &zero, 1);
3353
3354         /* figure out bucket size */
3355         uint32_t min = samples[0];
3356         uint32_t max = samples[0];
3357         for (i = 0; i < sampleNum; i++) {
3358                 if (min > samples[i])
3359                         min = samples[i];
3360                 if (max < samples[i])
3361                         max = samples[i];
3362         }
3363
3364         int addressSpace = (max - min + 1);
3365         assert(addressSpace >= 2);
3366
3367         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3368         uint32_t length = addressSpace;
3369         if (length > maxBuckets)
3370                 length = maxBuckets;
3371         int *buckets = malloc(sizeof(int)*length);
3372         if (buckets == NULL) {
3373                 fclose(f);
3374                 return;
3375         }
3376         memset(buckets, 0, sizeof(int) * length);
3377         for (i = 0; i < sampleNum; i++) {
3378                 uint32_t address = samples[i];
3379                 long long a = address - min;
3380                 long long b = length - 1;
3381                 long long c = addressSpace - 1;
3382                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3383                 buckets[index_t]++;
3384         }
3385
3386         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3387         writeLong(f, min);                      /* low_pc */
3388         writeLong(f, max);                      /* high_pc */
3389         writeLong(f, length);           /* # of samples */
3390         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3391         writeString(f, "seconds");
3392         for (i = 0; i < (15-strlen("seconds")); i++)
3393                 writeData(f, &zero, 1);
3394         writeString(f, "s");
3395
3396         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3397
3398         char *data = malloc(2 * length);
3399         if (data != NULL) {
3400                 for (i = 0; i < length; i++) {
3401                         int val;
3402                         val = buckets[i];
3403                         if (val > 65535)
3404                                 val = 65535;
3405                         data[i * 2] = val&0xff;
3406                         data[i * 2 + 1] = (val >> 8) & 0xff;
3407                 }
3408                 free(buckets);
3409                 writeData(f, data, length * 2);
3410                 free(data);
3411         } else
3412                 free(buckets);
3413
3414         fclose(f);
3415 }
3416
3417 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3418  * which will be used as a random sampling of PC */
3419 COMMAND_HANDLER(handle_profile_command)
3420 {
3421         struct target *target = get_current_target(CMD_CTX);
3422         struct timeval timeout, now;
3423
3424         gettimeofday(&timeout, NULL);
3425         if (CMD_ARGC != 2)
3426                 return ERROR_COMMAND_SYNTAX_ERROR;
3427         unsigned offset;
3428         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3429
3430         timeval_add_time(&timeout, offset, 0);
3431
3432         /**
3433          * @todo: Some cores let us sample the PC without the
3434          * annoying halt/resume step; for example, ARMv7 PCSR.
3435          * Provide a way to use that more efficient mechanism.
3436          */
3437
3438         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3439
3440         static const int maxSample = 10000;
3441         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3442         if (samples == NULL)
3443                 return ERROR_OK;
3444
3445         int numSamples = 0;
3446         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3447         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3448
3449         int retval = ERROR_OK;
3450         for (;;) {
3451                 target_poll(target);
3452                 if (target->state == TARGET_HALTED) {
3453                         uint32_t t = *((uint32_t *)reg->value);
3454                         samples[numSamples++] = t;
3455                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
3456                         retval = target_resume(target, 1, 0, 0, 0);
3457                         target_poll(target);
3458                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3459                 } else if (target->state == TARGET_RUNNING) {
3460                         /* We want to quickly sample the PC. */
3461                         retval = target_halt(target);
3462                         if (retval != ERROR_OK) {
3463                                 free(samples);
3464                                 return retval;
3465                         }
3466                 } else {
3467                         command_print(CMD_CTX, "Target not halted or running");
3468                         retval = ERROR_OK;
3469                         break;
3470                 }
3471                 if (retval != ERROR_OK)
3472                         break;
3473
3474                 gettimeofday(&now, NULL);
3475                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec)
3476                                 && (now.tv_usec >= timeout.tv_usec))) {
3477                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3478                         retval = target_poll(target);
3479                         if (retval != ERROR_OK) {
3480                                 free(samples);
3481                                 return retval;
3482                         }
3483                         if (target->state == TARGET_HALTED) {
3484                                 /* current pc, addr = 0, do not handle
3485                                  * breakpoints, not debugging */
3486                                 target_resume(target, 1, 0, 0, 0);
3487                         }
3488                         retval = target_poll(target);
3489                         if (retval != ERROR_OK) {
3490                                 free(samples);
3491                                 return retval;
3492                         }
3493                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3494                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3495                         break;
3496                 }
3497         }
3498         free(samples);
3499
3500         return retval;
3501 }
3502
3503 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3504 {
3505         char *namebuf;
3506         Jim_Obj *nameObjPtr, *valObjPtr;
3507         int result;
3508
3509         namebuf = alloc_printf("%s(%d)", varname, idx);
3510         if (!namebuf)
3511                 return JIM_ERR;
3512
3513         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3514         valObjPtr = Jim_NewIntObj(interp, val);
3515         if (!nameObjPtr || !valObjPtr) {
3516                 free(namebuf);
3517                 return JIM_ERR;
3518         }
3519
3520         Jim_IncrRefCount(nameObjPtr);
3521         Jim_IncrRefCount(valObjPtr);
3522         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3523         Jim_DecrRefCount(interp, nameObjPtr);
3524         Jim_DecrRefCount(interp, valObjPtr);
3525         free(namebuf);
3526         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3527         return result;
3528 }
3529
3530 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3531 {
3532         struct command_context *context;
3533         struct target *target;
3534
3535         context = current_command_context(interp);
3536         assert(context != NULL);
3537
3538         target = get_current_target(context);
3539         if (target == NULL) {
3540                 LOG_ERROR("mem2array: no current target");
3541                 return JIM_ERR;
3542         }
3543
3544         return target_mem2array(interp, target, argc - 1, argv + 1);
3545 }
3546
3547 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3548 {
3549         long l;
3550         uint32_t width;
3551         int len;
3552         uint32_t addr;
3553         uint32_t count;
3554         uint32_t v;
3555         const char *varname;
3556         int  n, e, retval;
3557         uint32_t i;
3558
3559         /* argv[1] = name of array to receive the data
3560          * argv[2] = desired width
3561          * argv[3] = memory address
3562          * argv[4] = count of times to read
3563          */
3564         if (argc != 4) {
3565                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3566                 return JIM_ERR;
3567         }
3568         varname = Jim_GetString(argv[0], &len);
3569         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3570
3571         e = Jim_GetLong(interp, argv[1], &l);
3572         width = l;
3573         if (e != JIM_OK)
3574                 return e;
3575
3576         e = Jim_GetLong(interp, argv[2], &l);
3577         addr = l;
3578         if (e != JIM_OK)
3579                 return e;
3580         e = Jim_GetLong(interp, argv[3], &l);
3581         len = l;
3582         if (e != JIM_OK)
3583                 return e;
3584         switch (width) {
3585                 case 8:
3586                         width = 1;
3587                         break;
3588                 case 16:
3589                         width = 2;
3590                         break;
3591                 case 32:
3592                         width = 4;
3593                         break;
3594                 default:
3595                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3596                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3597                         return JIM_ERR;
3598         }
3599         if (len == 0) {
3600                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3601                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3602                 return JIM_ERR;
3603         }
3604         if ((addr + (len * width)) < addr) {
3605                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3606                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3607                 return JIM_ERR;
3608         }
3609         /* absurd transfer size? */
3610         if (len > 65536) {
3611                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3612                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3613                 return JIM_ERR;
3614         }
3615
3616         if ((width == 1) ||
3617                 ((width == 2) && ((addr & 1) == 0)) ||
3618                 ((width == 4) && ((addr & 3) == 0))) {
3619                 /* all is well */
3620         } else {
3621                 char buf[100];
3622                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3623                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3624                                 addr,
3625                                 width);
3626                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3627                 return JIM_ERR;
3628         }
3629
3630         /* Transfer loop */
3631
3632         /* index counter */
3633         n = 0;
3634
3635         size_t buffersize = 4096;
3636         uint8_t *buffer = malloc(buffersize);
3637         if (buffer == NULL)
3638                 return JIM_ERR;
3639
3640         /* assume ok */
3641         e = JIM_OK;
3642         while (len) {
3643                 /* Slurp... in buffer size chunks */
3644
3645                 count = len; /* in objects.. */
3646                 if (count > (buffersize / width))
3647                         count = (buffersize / width);
3648
3649                 retval = target_read_memory(target, addr, width, count, buffer);
3650                 if (retval != ERROR_OK) {
3651                         /* BOO !*/
3652                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3653                                           (unsigned int)addr,
3654                                           (int)width,
3655                                           (int)count);
3656                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3657                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3658                         e = JIM_ERR;
3659                         break;
3660                 } else {
3661                         v = 0; /* shut up gcc */
3662                         for (i = 0; i < count ; i++, n++) {
3663                                 switch (width) {
3664                                         case 4:
3665                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3666                                                 break;
3667                                         case 2:
3668                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3669                                                 break;
3670                                         case 1:
3671                                                 v = buffer[i] & 0x0ff;
3672                                                 break;
3673                                 }
3674                                 new_int_array_element(interp, varname, n, v);
3675                         }
3676                         len -= count;
3677                 }
3678         }
3679
3680         free(buffer);
3681
3682         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3683
3684         return e;
3685 }
3686
3687 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3688 {
3689         char *namebuf;
3690         Jim_Obj *nameObjPtr, *valObjPtr;
3691         int result;
3692         long l;
3693
3694         namebuf = alloc_printf("%s(%d)", varname, idx);
3695         if (!namebuf)
3696                 return JIM_ERR;
3697
3698         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3699         if (!nameObjPtr) {
3700                 free(namebuf);
3701                 return JIM_ERR;
3702         }
3703
3704         Jim_IncrRefCount(nameObjPtr);
3705         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3706         Jim_DecrRefCount(interp, nameObjPtr);
3707         free(namebuf);
3708         if (valObjPtr == NULL)
3709                 return JIM_ERR;
3710
3711         result = Jim_GetLong(interp, valObjPtr, &l);
3712         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3713         *val = l;
3714         return result;
3715 }
3716
3717 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3718 {
3719         struct command_context *context;
3720         struct target *target;
3721
3722         context = current_command_context(interp);
3723         assert(context != NULL);
3724
3725         target = get_current_target(context);
3726         if (target == NULL) {
3727                 LOG_ERROR("array2mem: no current target");
3728                 return JIM_ERR;
3729         }
3730
3731         return target_array2mem(interp, target, argc-1, argv + 1);
3732 }
3733
3734 static int target_array2mem(Jim_Interp *interp, struct target *target,
3735                 int argc, Jim_Obj *const *argv)
3736 {
3737         long l;
3738         uint32_t width;
3739         int len;
3740         uint32_t addr;
3741         uint32_t count;
3742         uint32_t v;
3743         const char *varname;
3744         int  n, e, retval;
3745         uint32_t i;
3746
3747         /* argv[1] = name of array to get the data
3748          * argv[2] = desired width
3749          * argv[3] = memory address
3750          * argv[4] = count to write
3751          */
3752         if (argc != 4) {
3753                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3754                 return JIM_ERR;
3755         }
3756         varname = Jim_GetString(argv[0], &len);
3757         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3758
3759         e = Jim_GetLong(interp, argv[1], &l);
3760         width = l;
3761         if (e != JIM_OK)
3762                 return e;
3763
3764         e = Jim_GetLong(interp, argv[2], &l);
3765         addr = l;
3766         if (e != JIM_OK)
3767                 return e;
3768         e = Jim_GetLong(interp, argv[3], &l);
3769         len = l;
3770         if (e != JIM_OK)
3771                 return e;
3772         switch (width) {
3773                 case 8:
3774                         width = 1;
3775                         break;
3776                 case 16:
3777                         width = 2;
3778                         break;
3779                 case 32:
3780                         width = 4;
3781                         break;
3782                 default:
3783                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3784                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3785                                         "Invalid width param, must be 8/16/32", NULL);
3786                         return JIM_ERR;
3787         }
3788         if (len == 0) {
3789                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3790                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3791                                 "array2mem: zero width read?", NULL);
3792                 return JIM_ERR;
3793         }
3794         if ((addr + (len * width)) < addr) {
3795                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3796                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3797                                 "array2mem: addr + len - wraps to zero?", NULL);
3798                 return JIM_ERR;
3799         }
3800         /* absurd transfer size? */
3801         if (len > 65536) {
3802                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3803                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3804                                 "array2mem: absurd > 64K item request", NULL);
3805                 return JIM_ERR;
3806         }
3807
3808         if ((width == 1) ||
3809                 ((width == 2) && ((addr & 1) == 0)) ||
3810                 ((width == 4) && ((addr & 3) == 0))) {
3811                 /* all is well */
3812         } else {
3813                 char buf[100];
3814                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3815                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3816                                 (unsigned int)addr,
3817                                 (int)width);
3818                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3819                 return JIM_ERR;
3820         }
3821
3822         /* Transfer loop */
3823
3824         /* index counter */
3825         n = 0;
3826         /* assume ok */
3827         e = JIM_OK;
3828
3829         size_t buffersize = 4096;
3830         uint8_t *buffer = malloc(buffersize);
3831         if (buffer == NULL)
3832                 return JIM_ERR;
3833
3834         while (len) {
3835                 /* Slurp... in buffer size chunks */
3836
3837                 count = len; /* in objects.. */
3838                 if (count > (buffersize / width))
3839                         count = (buffersize / width);
3840
3841                 v = 0; /* shut up gcc */
3842                 for (i = 0; i < count; i++, n++) {
3843                         get_int_array_element(interp, varname, n, &v);
3844                         switch (width) {
3845                         case 4:
3846                                 target_buffer_set_u32(target, &buffer[i * width], v);
3847                                 break;
3848                         case 2:
3849                                 target_buffer_set_u16(target, &buffer[i * width], v);
3850                                 break;
3851                         case 1:
3852                                 buffer[i] = v & 0x0ff;
3853                                 break;
3854                         }
3855                 }
3856                 len -= count;
3857
3858                 retval = target_write_memory(target, addr, width, count, buffer);
3859                 if (retval != ERROR_OK) {
3860                         /* BOO !*/
3861                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3862                                           (unsigned int)addr,
3863                                           (int)width,
3864                                           (int)count);
3865                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3866                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3867                         e = JIM_ERR;
3868                         break;
3869                 }
3870         }
3871
3872         free(buffer);
3873
3874         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3875
3876         return e;
3877 }
3878
3879 /* FIX? should we propagate errors here rather than printing them
3880  * and continuing?
3881  */
3882 void target_handle_event(struct target *target, enum target_event e)
3883 {
3884         struct target_event_action *teap;
3885
3886         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3887                 if (teap->event == e) {
3888                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3889                                            target->target_number,
3890                                            target_name(target),
3891                                            target_type_name(target),
3892                                            e,
3893                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3894                                            Jim_GetString(teap->body, NULL));
3895                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3896                                 Jim_MakeErrorMessage(teap->interp);
3897                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3898                         }
3899                 }
3900         }
3901 }
3902
3903 /**
3904  * Returns true only if the target has a handler for the specified event.
3905  */
3906 bool target_has_event_action(struct target *target, enum target_event event)
3907 {
3908         struct target_event_action *teap;
3909
3910         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3911                 if (teap->event == event)
3912                         return true;
3913         }
3914         return false;
3915 }
3916
3917 enum target_cfg_param {
3918         TCFG_TYPE,
3919         TCFG_EVENT,
3920         TCFG_WORK_AREA_VIRT,
3921         TCFG_WORK_AREA_PHYS,
3922         TCFG_WORK_AREA_SIZE,
3923         TCFG_WORK_AREA_BACKUP,
3924         TCFG_ENDIAN,
3925         TCFG_VARIANT,
3926         TCFG_COREID,
3927         TCFG_CHAIN_POSITION,
3928         TCFG_DBGBASE,
3929         TCFG_RTOS,
3930 };
3931
3932 static Jim_Nvp nvp_config_opts[] = {
3933         { .name = "-type",             .value = TCFG_TYPE },
3934         { .name = "-event",            .value = TCFG_EVENT },
3935         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3936         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3937         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3938         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3939         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3940         { .name = "-variant",          .value = TCFG_VARIANT },
3941         { .name = "-coreid",           .value = TCFG_COREID },
3942         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3943         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3944         { .name = "-rtos",             .value = TCFG_RTOS },
3945         { .name = NULL, .value = -1 }
3946 };
3947
3948 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3949 {
3950         Jim_Nvp *n;
3951         Jim_Obj *o;
3952         jim_wide w;
3953         char *cp;
3954         int e;
3955
3956         /* parse config or cget options ... */
3957         while (goi->argc > 0) {
3958                 Jim_SetEmptyResult(goi->interp);
3959                 /* Jim_GetOpt_Debug(goi); */
3960
3961                 if (target->type->target_jim_configure) {
3962                         /* target defines a configure function */
3963                         /* target gets first dibs on parameters */
3964                         e = (*(target->type->target_jim_configure))(target, goi);
3965                         if (e == JIM_OK) {
3966                                 /* more? */
3967                                 continue;
3968                         }
3969                         if (e == JIM_ERR) {
3970                                 /* An error */
3971                                 return e;
3972                         }
3973                         /* otherwise we 'continue' below */
3974                 }
3975                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3976                 if (e != JIM_OK) {
3977                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
3978                         return e;
3979                 }
3980                 switch (n->value) {
3981                 case TCFG_TYPE:
3982                         /* not setable */
3983                         if (goi->isconfigure) {
3984                                 Jim_SetResultFormatted(goi->interp,
3985                                                 "not settable: %s", n->name);
3986                                 return JIM_ERR;
3987                         } else {
3988 no_params:
3989                                 if (goi->argc != 0) {
3990                                         Jim_WrongNumArgs(goi->interp,
3991                                                         goi->argc, goi->argv,
3992                                                         "NO PARAMS");
3993                                         return JIM_ERR;
3994                                 }
3995                         }
3996                         Jim_SetResultString(goi->interp,
3997                                         target_type_name(target), -1);
3998                         /* loop for more */
3999                         break;
4000                 case TCFG_EVENT:
4001                         if (goi->argc == 0) {
4002                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4003                                 return JIM_ERR;
4004                         }
4005
4006                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4007                         if (e != JIM_OK) {
4008                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4009                                 return e;
4010                         }
4011
4012                         if (goi->isconfigure) {
4013                                 if (goi->argc != 1) {
4014                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4015                                         return JIM_ERR;
4016                                 }
4017                         } else {
4018                                 if (goi->argc != 0) {
4019                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4020                                         return JIM_ERR;
4021                                 }
4022                         }
4023
4024                         {
4025                                 struct target_event_action *teap;
4026
4027                                 teap = target->event_action;
4028                                 /* replace existing? */
4029                                 while (teap) {
4030                                         if (teap->event == (enum target_event)n->value)
4031                                                 break;
4032                                         teap = teap->next;
4033                                 }
4034
4035                                 if (goi->isconfigure) {
4036                                         bool replace = true;
4037                                         if (teap == NULL) {
4038                                                 /* create new */
4039                                                 teap = calloc(1, sizeof(*teap));
4040                                                 replace = false;
4041                                         }
4042                                         teap->event = n->value;
4043                                         teap->interp = goi->interp;
4044                                         Jim_GetOpt_Obj(goi, &o);
4045                                         if (teap->body)
4046                                                 Jim_DecrRefCount(teap->interp, teap->body);
4047                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4048                                         /*
4049                                          * FIXME:
4050                                          *     Tcl/TK - "tk events" have a nice feature.
4051                                          *     See the "BIND" command.
4052                                          *    We should support that here.
4053                                          *     You can specify %X and %Y in the event code.
4054                                          *     The idea is: %T - target name.
4055                                          *     The idea is: %N - target number
4056                                          *     The idea is: %E - event name.
4057                                          */
4058                                         Jim_IncrRefCount(teap->body);
4059
4060                                         if (!replace) {
4061                                                 /* add to head of event list */
4062                                                 teap->next = target->event_action;
4063                                                 target->event_action = teap;
4064                                         }
4065                                         Jim_SetEmptyResult(goi->interp);
4066                                 } else {
4067                                         /* get */
4068                                         if (teap == NULL)
4069                                                 Jim_SetEmptyResult(goi->interp);
4070                                         else
4071                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4072                                 }
4073                         }
4074                         /* loop for more */
4075                         break;
4076
4077                 case TCFG_WORK_AREA_VIRT:
4078                         if (goi->isconfigure) {
4079                                 target_free_all_working_areas(target);
4080                                 e = Jim_GetOpt_Wide(goi, &w);
4081                                 if (e != JIM_OK)
4082                                         return e;
4083                                 target->working_area_virt = w;
4084                                 target->working_area_virt_spec = true;
4085                         } else {
4086                                 if (goi->argc != 0)
4087                                         goto no_params;
4088                         }
4089                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4090                         /* loop for more */
4091                         break;
4092
4093                 case TCFG_WORK_AREA_PHYS:
4094                         if (goi->isconfigure) {
4095                                 target_free_all_working_areas(target);
4096                                 e = Jim_GetOpt_Wide(goi, &w);
4097                                 if (e != JIM_OK)
4098                                         return e;
4099                                 target->working_area_phys = w;
4100                                 target->working_area_phys_spec = true;
4101                         } else {
4102                                 if (goi->argc != 0)
4103                                         goto no_params;
4104                         }
4105                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4106                         /* loop for more */
4107                         break;
4108
4109                 case TCFG_WORK_AREA_SIZE:
4110                         if (goi->isconfigure) {
4111                                 target_free_all_working_areas(target);
4112                                 e = Jim_GetOpt_Wide(goi, &w);
4113                                 if (e != JIM_OK)
4114                                         return e;
4115                                 target->working_area_size = w;
4116                         } else {
4117                                 if (goi->argc != 0)
4118                                         goto no_params;
4119                         }
4120                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4121                         /* loop for more */
4122                         break;
4123
4124                 case TCFG_WORK_AREA_BACKUP:
4125                         if (goi->isconfigure) {
4126                                 target_free_all_working_areas(target);
4127                                 e = Jim_GetOpt_Wide(goi, &w);
4128                                 if (e != JIM_OK)
4129                                         return e;
4130                                 /* make this exactly 1 or 0 */
4131                                 target->backup_working_area = (!!w);
4132                         } else {
4133                                 if (goi->argc != 0)
4134                                         goto no_params;
4135                         }
4136                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4137                         /* loop for more e*/
4138                         break;
4139
4140
4141                 case TCFG_ENDIAN:
4142                         if (goi->isconfigure) {
4143                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4144                                 if (e != JIM_OK) {
4145                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4146                                         return e;
4147                                 }
4148                                 target->endianness = n->value;
4149                         } else {
4150                                 if (goi->argc != 0)
4151                                         goto no_params;
4152                         }
4153                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4154                         if (n->name == NULL) {
4155                                 target->endianness = TARGET_LITTLE_ENDIAN;
4156                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4157                         }
4158                         Jim_SetResultString(goi->interp, n->name, -1);
4159                         /* loop for more */
4160                         break;
4161
4162                 case TCFG_VARIANT:
4163                         if (goi->isconfigure) {
4164                                 if (goi->argc < 1) {
4165                                         Jim_SetResultFormatted(goi->interp,
4166                                                                                    "%s ?STRING?",
4167                                                                                    n->name);
4168                                         return JIM_ERR;
4169                                 }
4170                                 if (target->variant)
4171                                         free((void *)(target->variant));
4172                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4173                                 if (e != JIM_OK)
4174                                         return e;
4175                                 target->variant = strdup(cp);
4176                         } else {
4177                                 if (goi->argc != 0)
4178                                         goto no_params;
4179                         }
4180                         Jim_SetResultString(goi->interp, target->variant, -1);
4181                         /* loop for more */
4182                         break;
4183
4184                 case TCFG_COREID:
4185                         if (goi->isconfigure) {
4186                                 e = Jim_GetOpt_Wide(goi, &w);
4187                                 if (e != JIM_OK)
4188                                         return e;
4189                                 target->coreid = (int32_t)w;
4190                         } else {
4191                                 if (goi->argc != 0)
4192                                         goto no_params;
4193                         }
4194                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4195                         /* loop for more */
4196                         break;
4197
4198                 case TCFG_CHAIN_POSITION:
4199                         if (goi->isconfigure) {
4200                                 Jim_Obj *o_t;
4201                                 struct jtag_tap *tap;
4202                                 target_free_all_working_areas(target);
4203                                 e = Jim_GetOpt_Obj(goi, &o_t);
4204                                 if (e != JIM_OK)
4205                                         return e;
4206                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4207                                 if (tap == NULL)
4208                                         return JIM_ERR;
4209                                 /* make this exactly 1 or 0 */
4210                                 target->tap = tap;
4211                         } else {
4212                                 if (goi->argc != 0)
4213                                         goto no_params;
4214                         }
4215                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4216                         /* loop for more e*/
4217                         break;
4218                 case TCFG_DBGBASE:
4219                         if (goi->isconfigure) {
4220                                 e = Jim_GetOpt_Wide(goi, &w);
4221                                 if (e != JIM_OK)
4222                                         return e;
4223                                 target->dbgbase = (uint32_t)w;
4224                                 target->dbgbase_set = true;
4225                         } else {
4226                                 if (goi->argc != 0)
4227                                         goto no_params;
4228                         }
4229                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4230                         /* loop for more */
4231                         break;
4232
4233                 case TCFG_RTOS:
4234                         /* RTOS */
4235                         {
4236                                 int result = rtos_create(goi, target);
4237                                 if (result != JIM_OK)
4238                                         return result;
4239                         }
4240                         /* loop for more */
4241                         break;
4242                 }
4243         } /* while (goi->argc) */
4244
4245
4246                 /* done - we return */
4247         return JIM_OK;
4248 }
4249
4250 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4251 {
4252         Jim_GetOptInfo goi;
4253
4254         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4255         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4256         int need_args = 1 + goi.isconfigure;
4257         if (goi.argc < need_args) {
4258                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4259                         goi.isconfigure
4260                                 ? "missing: -option VALUE ..."
4261                                 : "missing: -option ...");
4262                 return JIM_ERR;
4263         }
4264         struct target *target = Jim_CmdPrivData(goi.interp);
4265         return target_configure(&goi, target);
4266 }
4267
4268 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4269 {
4270         const char *cmd_name = Jim_GetString(argv[0], NULL);
4271
4272         Jim_GetOptInfo goi;
4273         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4274
4275         if (goi.argc < 2 || goi.argc > 4) {
4276                 Jim_SetResultFormatted(goi.interp,
4277                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4278                 return JIM_ERR;
4279         }
4280
4281         target_write_fn fn;
4282         fn = target_write_memory_fast;
4283
4284         int e;
4285         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4286                 /* consume it */
4287                 struct Jim_Obj *obj;
4288                 e = Jim_GetOpt_Obj(&goi, &obj);
4289                 if (e != JIM_OK)
4290                         return e;
4291
4292                 fn = target_write_phys_memory;
4293         }
4294
4295         jim_wide a;
4296         e = Jim_GetOpt_Wide(&goi, &a);
4297         if (e != JIM_OK)
4298                 return e;
4299
4300         jim_wide b;
4301         e = Jim_GetOpt_Wide(&goi, &b);
4302         if (e != JIM_OK)
4303                 return e;
4304
4305         jim_wide c = 1;
4306         if (goi.argc == 1) {
4307                 e = Jim_GetOpt_Wide(&goi, &c);
4308                 if (e != JIM_OK)
4309                         return e;
4310         }
4311
4312         /* all args must be consumed */
4313         if (goi.argc != 0)
4314                 return JIM_ERR;
4315
4316         struct target *target = Jim_CmdPrivData(goi.interp);
4317         unsigned data_size;
4318         if (strcasecmp(cmd_name, "mww") == 0)
4319                 data_size = 4;
4320         else if (strcasecmp(cmd_name, "mwh") == 0)
4321                 data_size = 2;
4322         else if (strcasecmp(cmd_name, "mwb") == 0)
4323                 data_size = 1;
4324         else {
4325                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4326                 return JIM_ERR;
4327         }
4328
4329         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4330 }
4331
4332 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4333 {
4334         const char *cmd_name = Jim_GetString(argv[0], NULL);
4335
4336         Jim_GetOptInfo goi;
4337         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4338
4339         if ((goi.argc < 1) || (goi.argc > 3)) {
4340                 Jim_SetResultFormatted(goi.interp,
4341                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4342                 return JIM_ERR;
4343         }
4344
4345         int (*fn)(struct target *target,
4346                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4347         fn = target_read_memory;
4348
4349         int e;
4350         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4351                 /* consume it */
4352                 struct Jim_Obj *obj;
4353                 e = Jim_GetOpt_Obj(&goi, &obj);
4354                 if (e != JIM_OK)
4355                         return e;
4356
4357                 fn = target_read_phys_memory;
4358         }
4359
4360         jim_wide a;
4361         e = Jim_GetOpt_Wide(&goi, &a);
4362         if (e != JIM_OK)
4363                 return JIM_ERR;
4364         jim_wide c;
4365         if (goi.argc == 1) {
4366                 e = Jim_GetOpt_Wide(&goi, &c);
4367                 if (e != JIM_OK)
4368                         return JIM_ERR;
4369         } else
4370                 c = 1;
4371
4372         /* all args must be consumed */
4373         if (goi.argc != 0)
4374                 return JIM_ERR;
4375
4376         jim_wide b = 1; /* shut up gcc */
4377         if (strcasecmp(cmd_name, "mdw") == 0)
4378                 b = 4;
4379         else if (strcasecmp(cmd_name, "mdh") == 0)
4380                 b = 2;
4381         else if (strcasecmp(cmd_name, "mdb") == 0)
4382                 b = 1;
4383         else {
4384                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4385                 return JIM_ERR;
4386         }
4387
4388         /* convert count to "bytes" */
4389         c = c * b;
4390
4391         struct target *target = Jim_CmdPrivData(goi.interp);
4392         uint8_t  target_buf[32];
4393         jim_wide x, y, z;
4394         while (c > 0) {
4395                 y = c;
4396                 if (y > 16)
4397                         y = 16;
4398                 e = fn(target, a, b, y / b, target_buf);
4399                 if (e != ERROR_OK) {
4400                         char tmp[10];
4401                         snprintf(tmp, sizeof(tmp), "%08lx", (long)a);
4402                         Jim_SetResultFormatted(interp, "error reading target @ 0x%s", tmp);
4403                         return JIM_ERR;
4404                 }
4405
4406                 command_print(NULL, "0x%08x ", (int)(a));
4407                 switch (b) {
4408                 case 4:
4409                         for (x = 0; x < 16 && x < y; x += 4) {
4410                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4411                                 command_print(NULL, "%08x ", (int)(z));
4412                         }
4413                         for (; (x < 16) ; x += 4)
4414                                 command_print(NULL, "         ");
4415                         break;
4416                 case 2:
4417                         for (x = 0; x < 16 && x < y; x += 2) {
4418                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4419                                 command_print(NULL, "%04x ", (int)(z));
4420                         }
4421                         for (; (x < 16) ; x += 2)
4422                                 command_print(NULL, "     ");
4423                         break;
4424                 case 1:
4425                 default:
4426                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4427                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4428                                 command_print(NULL, "%02x ", (int)(z));
4429                         }
4430                         for (; (x < 16) ; x += 1)
4431                                 command_print(NULL, "   ");
4432                         break;
4433                 }
4434                 /* ascii-ify the bytes */
4435                 for (x = 0 ; x < y ; x++) {
4436                         if ((target_buf[x] >= 0x20) &&
4437                                 (target_buf[x] <= 0x7e)) {
4438                                 /* good */
4439                         } else {
4440                                 /* smack it */
4441                                 target_buf[x] = '.';
4442                         }
4443                 }
4444                 /* space pad  */
4445                 while (x < 16) {
4446                         target_buf[x] = ' ';
4447                         x++;
4448                 }
4449                 /* terminate */
4450                 target_buf[16] = 0;
4451                 /* print - with a newline */
4452                 command_print(NULL, "%s\n", target_buf);
4453                 /* NEXT... */
4454                 c -= 16;
4455                 a += 16;
4456         }
4457         return JIM_OK;
4458 }
4459
4460 static int jim_target_mem2array(Jim_Interp *interp,
4461                 int argc, Jim_Obj *const *argv)
4462 {
4463         struct target *target = Jim_CmdPrivData(interp);
4464         return target_mem2array(interp, target, argc - 1, argv + 1);
4465 }
4466
4467 static int jim_target_array2mem(Jim_Interp *interp,
4468                 int argc, Jim_Obj *const *argv)
4469 {
4470         struct target *target = Jim_CmdPrivData(interp);
4471         return target_array2mem(interp, target, argc - 1, argv + 1);
4472 }
4473
4474 static int jim_target_tap_disabled(Jim_Interp *interp)
4475 {
4476         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4477         return JIM_ERR;
4478 }
4479
4480 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4481 {
4482         if (argc != 1) {
4483                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4484                 return JIM_ERR;
4485         }
4486         struct target *target = Jim_CmdPrivData(interp);
4487         if (!target->tap->enabled)
4488                 return jim_target_tap_disabled(interp);
4489
4490         int e = target->type->examine(target);
4491         if (e != ERROR_OK)
4492                 return JIM_ERR;
4493         return JIM_OK;
4494 }
4495
4496 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4497 {
4498         if (argc != 1) {
4499                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4500                 return JIM_ERR;
4501         }
4502         struct target *target = Jim_CmdPrivData(interp);
4503
4504         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4505                 return JIM_ERR;
4506
4507         return JIM_OK;
4508 }
4509
4510 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4511 {
4512         if (argc != 1) {
4513                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4514                 return JIM_ERR;
4515         }
4516         struct target *target = Jim_CmdPrivData(interp);
4517         if (!target->tap->enabled)
4518                 return jim_target_tap_disabled(interp);
4519
4520         int e;
4521         if (!(target_was_examined(target)))
4522                 e = ERROR_TARGET_NOT_EXAMINED;
4523         else
4524                 e = target->type->poll(target);
4525         if (e != ERROR_OK)
4526                 return JIM_ERR;
4527         return JIM_OK;
4528 }
4529
4530 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4531 {
4532         Jim_GetOptInfo goi;
4533         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4534
4535         if (goi.argc != 2) {
4536                 Jim_WrongNumArgs(interp, 0, argv,
4537                                 "([tT]|[fF]|assert|deassert) BOOL");
4538                 return JIM_ERR;
4539         }
4540
4541         Jim_Nvp *n;
4542         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4543         if (e != JIM_OK) {
4544                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4545                 return e;
4546         }
4547         /* the halt or not param */
4548         jim_wide a;
4549         e = Jim_GetOpt_Wide(&goi, &a);
4550         if (e != JIM_OK)
4551                 return e;
4552
4553         struct target *target = Jim_CmdPrivData(goi.interp);
4554         if (!target->tap->enabled)
4555                 return jim_target_tap_disabled(interp);
4556         if (!(target_was_examined(target))) {
4557                 LOG_ERROR("Target not examined yet");
4558                 return ERROR_TARGET_NOT_EXAMINED;
4559         }
4560         if (!target->type->assert_reset || !target->type->deassert_reset) {
4561                 Jim_SetResultFormatted(interp,
4562                                 "No target-specific reset for %s",
4563                                 target_name(target));
4564                 return JIM_ERR;
4565         }
4566         /* determine if we should halt or not. */
4567         target->reset_halt = !!a;
4568         /* When this happens - all workareas are invalid. */
4569         target_free_all_working_areas_restore(target, 0);
4570
4571         /* do the assert */
4572         if (n->value == NVP_ASSERT)
4573                 e = target->type->assert_reset(target);
4574         else
4575                 e = target->type->deassert_reset(target);
4576         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4577 }
4578
4579 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4580 {
4581         if (argc != 1) {
4582                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4583                 return JIM_ERR;
4584         }
4585         struct target *target = Jim_CmdPrivData(interp);
4586         if (!target->tap->enabled)
4587                 return jim_target_tap_disabled(interp);
4588         int e = target->type->halt(target);
4589         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4590 }
4591
4592 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4593 {
4594         Jim_GetOptInfo goi;
4595         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4596
4597         /* params:  <name>  statename timeoutmsecs */
4598         if (goi.argc != 2) {
4599                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4600                 Jim_SetResultFormatted(goi.interp,
4601                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4602                 return JIM_ERR;
4603         }
4604
4605         Jim_Nvp *n;
4606         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4607         if (e != JIM_OK) {
4608                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4609                 return e;
4610         }
4611         jim_wide a;
4612         e = Jim_GetOpt_Wide(&goi, &a);
4613         if (e != JIM_OK)
4614                 return e;
4615         struct target *target = Jim_CmdPrivData(interp);
4616         if (!target->tap->enabled)
4617                 return jim_target_tap_disabled(interp);
4618
4619         e = target_wait_state(target, n->value, a);
4620         if (e != ERROR_OK) {
4621                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4622                 Jim_SetResultFormatted(goi.interp,
4623                                 "target: %s wait %s fails (%#s) %s",
4624                                 target_name(target), n->name,
4625                                 eObj, target_strerror_safe(e));
4626                 Jim_FreeNewObj(interp, eObj);
4627                 return JIM_ERR;
4628         }
4629         return JIM_OK;
4630 }
4631 /* List for human, Events defined for this target.
4632  * scripts/programs should use 'name cget -event NAME'
4633  */
4634 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4635 {
4636         struct command_context *cmd_ctx = current_command_context(interp);
4637         assert(cmd_ctx != NULL);
4638
4639         struct target *target = Jim_CmdPrivData(interp);
4640         struct target_event_action *teap = target->event_action;
4641         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4642                                    target->target_number,
4643                                    target_name(target));
4644         command_print(cmd_ctx, "%-25s | Body", "Event");
4645         command_print(cmd_ctx, "------------------------- | "
4646                         "----------------------------------------");
4647         while (teap) {
4648                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4649                 command_print(cmd_ctx, "%-25s | %s",
4650                                 opt->name, Jim_GetString(teap->body, NULL));
4651                 teap = teap->next;
4652         }
4653         command_print(cmd_ctx, "***END***");
4654         return JIM_OK;
4655 }
4656 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4657 {
4658         if (argc != 1) {
4659                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4660                 return JIM_ERR;
4661         }
4662         struct target *target = Jim_CmdPrivData(interp);
4663         Jim_SetResultString(interp, target_state_name(target), -1);
4664         return JIM_OK;
4665 }
4666 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4667 {
4668         Jim_GetOptInfo goi;
4669         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4670         if (goi.argc != 1) {
4671                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4672                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4673                 return JIM_ERR;
4674         }
4675         Jim_Nvp *n;
4676         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4677         if (e != JIM_OK) {
4678                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4679                 return e;
4680         }
4681         struct target *target = Jim_CmdPrivData(interp);
4682         target_handle_event(target, n->value);
4683         return JIM_OK;
4684 }
4685
4686 static const struct command_registration target_instance_command_handlers[] = {
4687         {
4688                 .name = "configure",
4689                 .mode = COMMAND_CONFIG,
4690                 .jim_handler = jim_target_configure,
4691                 .help  = "configure a new target for use",
4692                 .usage = "[target_attribute ...]",
4693         },
4694         {
4695                 .name = "cget",
4696                 .mode = COMMAND_ANY,
4697                 .jim_handler = jim_target_configure,
4698                 .help  = "returns the specified target attribute",
4699                 .usage = "target_attribute",
4700         },
4701         {
4702                 .name = "mww",
4703                 .mode = COMMAND_EXEC,
4704                 .jim_handler = jim_target_mw,
4705                 .help = "Write 32-bit word(s) to target memory",
4706                 .usage = "address data [count]",
4707         },
4708         {
4709                 .name = "mwh",
4710                 .mode = COMMAND_EXEC,
4711                 .jim_handler = jim_target_mw,
4712                 .help = "Write 16-bit half-word(s) to target memory",
4713                 .usage = "address data [count]",
4714         },
4715         {
4716                 .name = "mwb",
4717                 .mode = COMMAND_EXEC,
4718                 .jim_handler = jim_target_mw,
4719                 .help = "Write byte(s) to target memory",
4720                 .usage = "address data [count]",
4721         },
4722         {
4723                 .name = "mdw",
4724                 .mode = COMMAND_EXEC,
4725                 .jim_handler = jim_target_md,
4726                 .help = "Display target memory as 32-bit words",
4727                 .usage = "address [count]",
4728         },
4729         {
4730                 .name = "mdh",
4731                 .mode = COMMAND_EXEC,
4732                 .jim_handler = jim_target_md,
4733                 .help = "Display target memory as 16-bit half-words",
4734                 .usage = "address [count]",
4735         },
4736         {
4737                 .name = "mdb",
4738                 .mode = COMMAND_EXEC,
4739                 .jim_handler = jim_target_md,
4740                 .help = "Display target memory as 8-bit bytes",
4741                 .usage = "address [count]",
4742         },
4743         {
4744                 .name = "array2mem",
4745                 .mode = COMMAND_EXEC,
4746                 .jim_handler = jim_target_array2mem,
4747                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4748                         "to target memory",
4749                 .usage = "arrayname bitwidth address count",
4750         },
4751         {
4752                 .name = "mem2array",
4753                 .mode = COMMAND_EXEC,
4754                 .jim_handler = jim_target_mem2array,
4755                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4756                         "from target memory",
4757                 .usage = "arrayname bitwidth address count",
4758         },
4759         {
4760                 .name = "eventlist",
4761                 .mode = COMMAND_EXEC,
4762                 .jim_handler = jim_target_event_list,
4763                 .help = "displays a table of events defined for this target",
4764         },
4765         {
4766                 .name = "curstate",
4767                 .mode = COMMAND_EXEC,
4768                 .jim_handler = jim_target_current_state,
4769                 .help = "displays the current state of this target",
4770         },
4771         {
4772                 .name = "arp_examine",
4773                 .mode = COMMAND_EXEC,
4774                 .jim_handler = jim_target_examine,
4775                 .help = "used internally for reset processing",
4776         },
4777         {
4778                 .name = "arp_halt_gdb",
4779                 .mode = COMMAND_EXEC,
4780                 .jim_handler = jim_target_halt_gdb,
4781                 .help = "used internally for reset processing to halt GDB",
4782         },
4783         {
4784                 .name = "arp_poll",
4785                 .mode = COMMAND_EXEC,
4786                 .jim_handler = jim_target_poll,
4787                 .help = "used internally for reset processing",
4788         },
4789         {
4790                 .name = "arp_reset",
4791                 .mode = COMMAND_EXEC,
4792                 .jim_handler = jim_target_reset,
4793                 .help = "used internally for reset processing",
4794         },
4795         {
4796                 .name = "arp_halt",
4797                 .mode = COMMAND_EXEC,
4798                 .jim_handler = jim_target_halt,
4799                 .help = "used internally for reset processing",
4800         },
4801         {
4802                 .name = "arp_waitstate",
4803                 .mode = COMMAND_EXEC,
4804                 .jim_handler = jim_target_wait_state,
4805                 .help = "used internally for reset processing",
4806         },
4807         {
4808                 .name = "invoke-event",
4809                 .mode = COMMAND_EXEC,
4810                 .jim_handler = jim_target_invoke_event,
4811                 .help = "invoke handler for specified event",
4812                 .usage = "event_name",
4813         },
4814         COMMAND_REGISTRATION_DONE
4815 };
4816
4817 static int target_create(Jim_GetOptInfo *goi)
4818 {
4819         Jim_Obj *new_cmd;
4820         Jim_Cmd *cmd;
4821         const char *cp;
4822         char *cp2;
4823         int e;
4824         int x;
4825         struct target *target;
4826         struct command_context *cmd_ctx;
4827
4828         cmd_ctx = current_command_context(goi->interp);
4829         assert(cmd_ctx != NULL);
4830
4831         if (goi->argc < 3) {
4832                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4833                 return JIM_ERR;
4834         }
4835
4836         /* COMMAND */
4837         Jim_GetOpt_Obj(goi, &new_cmd);
4838         /* does this command exist? */
4839         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4840         if (cmd) {
4841                 cp = Jim_GetString(new_cmd, NULL);
4842                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4843                 return JIM_ERR;
4844         }
4845
4846         /* TYPE */
4847         e = Jim_GetOpt_String(goi, &cp2, NULL);
4848         if (e != JIM_OK)
4849                 return e;
4850         cp = cp2;
4851         /* now does target type exist */
4852         for (x = 0 ; target_types[x] ; x++) {
4853                 if (0 == strcmp(cp, target_types[x]->name)) {
4854                         /* found */
4855                         break;
4856                 }
4857         }
4858         if (target_types[x] == NULL) {
4859                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4860                 for (x = 0 ; target_types[x] ; x++) {
4861                         if (target_types[x + 1]) {
4862                                 Jim_AppendStrings(goi->interp,
4863                                                                    Jim_GetResult(goi->interp),
4864                                                                    target_types[x]->name,
4865                                                                    ", ", NULL);
4866                         } else {
4867                                 Jim_AppendStrings(goi->interp,
4868                                                                    Jim_GetResult(goi->interp),
4869                                                                    " or ",
4870                                                                    target_types[x]->name, NULL);
4871                         }
4872                 }
4873                 return JIM_ERR;
4874         }
4875
4876         /* Create it */
4877         target = calloc(1, sizeof(struct target));
4878         /* set target number */
4879         target->target_number = new_target_number();
4880
4881         /* allocate memory for each unique target type */
4882         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
4883
4884         memcpy(target->type, target_types[x], sizeof(struct target_type));
4885
4886         /* will be set by "-endian" */
4887         target->endianness = TARGET_ENDIAN_UNKNOWN;
4888
4889         /* default to first core, override with -coreid */
4890         target->coreid = 0;
4891
4892         target->working_area        = 0x0;
4893         target->working_area_size   = 0x0;
4894         target->working_areas       = NULL;
4895         target->backup_working_area = 0;
4896
4897         target->state               = TARGET_UNKNOWN;
4898         target->debug_reason        = DBG_REASON_UNDEFINED;
4899         target->reg_cache           = NULL;
4900         target->breakpoints         = NULL;
4901         target->watchpoints         = NULL;
4902         target->next                = NULL;
4903         target->arch_info           = NULL;
4904
4905         target->display             = 1;
4906
4907         target->halt_issued                     = false;
4908
4909         /* initialize trace information */
4910         target->trace_info = malloc(sizeof(struct trace));
4911         target->trace_info->num_trace_points         = 0;
4912         target->trace_info->trace_points_size        = 0;
4913         target->trace_info->trace_points             = NULL;
4914         target->trace_info->trace_history_size       = 0;
4915         target->trace_info->trace_history            = NULL;
4916         target->trace_info->trace_history_pos        = 0;
4917         target->trace_info->trace_history_overflowed = 0;
4918
4919         target->dbgmsg          = NULL;
4920         target->dbg_msg_enabled = 0;
4921
4922         target->endianness = TARGET_ENDIAN_UNKNOWN;
4923
4924         target->rtos = NULL;
4925         target->rtos_auto_detect = false;
4926
4927         /* Do the rest as "configure" options */
4928         goi->isconfigure = 1;
4929         e = target_configure(goi, target);
4930
4931         if (target->tap == NULL) {
4932                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4933                 e = JIM_ERR;
4934         }
4935
4936         if (e != JIM_OK) {
4937                 free(target->type);
4938                 free(target);
4939                 return e;
4940         }
4941
4942         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
4943                 /* default endian to little if not specified */
4944                 target->endianness = TARGET_LITTLE_ENDIAN;
4945         }
4946
4947         /* incase variant is not set */
4948         if (!target->variant)
4949                 target->variant = strdup("");
4950
4951         cp = Jim_GetString(new_cmd, NULL);
4952         target->cmd_name = strdup(cp);
4953
4954         /* create the target specific commands */
4955         if (target->type->commands) {
4956                 e = register_commands(cmd_ctx, NULL, target->type->commands);
4957                 if (ERROR_OK != e)
4958                         LOG_ERROR("unable to register '%s' commands", cp);
4959         }
4960         if (target->type->target_create)
4961                 (*(target->type->target_create))(target, goi->interp);
4962
4963         /* append to end of list */
4964         {
4965                 struct target **tpp;
4966                 tpp = &(all_targets);
4967                 while (*tpp)
4968                         tpp = &((*tpp)->next);
4969                 *tpp = target;
4970         }
4971
4972         /* now - create the new target name command */
4973         const const struct command_registration target_subcommands[] = {
4974                 {
4975                         .chain = target_instance_command_handlers,
4976                 },
4977                 {
4978                         .chain = target->type->commands,
4979                 },
4980                 COMMAND_REGISTRATION_DONE
4981         };
4982         const const struct command_registration target_commands[] = {
4983                 {
4984                         .name = cp,
4985                         .mode = COMMAND_ANY,
4986                         .help = "target command group",
4987                         .usage = "",
4988                         .chain = target_subcommands,
4989                 },
4990                 COMMAND_REGISTRATION_DONE
4991         };
4992         e = register_commands(cmd_ctx, NULL, target_commands);
4993         if (ERROR_OK != e)
4994                 return JIM_ERR;
4995
4996         struct command *c = command_find_in_context(cmd_ctx, cp);
4997         assert(c);
4998         command_set_handler_data(c, target);
4999
5000         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5001 }
5002
5003 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5004 {
5005         if (argc != 1) {
5006                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5007                 return JIM_ERR;
5008         }
5009         struct command_context *cmd_ctx = current_command_context(interp);
5010         assert(cmd_ctx != NULL);
5011
5012         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
5013         return JIM_OK;
5014 }
5015
5016 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5017 {
5018         if (argc != 1) {
5019                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5020                 return JIM_ERR;
5021         }
5022         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5023         for (unsigned x = 0; NULL != target_types[x]; x++) {
5024                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5025                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5026         }
5027         return JIM_OK;
5028 }
5029
5030 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5031 {
5032         if (argc != 1) {
5033                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5034                 return JIM_ERR;
5035         }
5036         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5037         struct target *target = all_targets;
5038         while (target) {
5039                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5040                         Jim_NewStringObj(interp, target_name(target), -1));
5041                 target = target->next;
5042         }
5043         return JIM_OK;
5044 }
5045
5046 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5047 {
5048         int i;
5049         const char *targetname;
5050         int retval, len;
5051         struct target *target = (struct target *) NULL;
5052         struct target_list *head, *curr, *new;
5053         curr = (struct target_list *) NULL;
5054         head = (struct target_list *) NULL;
5055
5056         retval = 0;
5057         LOG_DEBUG("%d", argc);
5058         /* argv[1] = target to associate in smp
5059          * argv[2] = target to assoicate in smp
5060          * argv[3] ...
5061          */
5062
5063         for (i = 1; i < argc; i++) {
5064
5065                 targetname = Jim_GetString(argv[i], &len);
5066                 target = get_target(targetname);
5067                 LOG_DEBUG("%s ", targetname);
5068                 if (target) {
5069                         new = malloc(sizeof(struct target_list));
5070                         new->target = target;
5071                         new->next = (struct target_list *)NULL;
5072                         if (head == (struct target_list *)NULL) {
5073                                 head = new;
5074                                 curr = head;
5075                         } else {
5076                                 curr->next = new;
5077                                 curr = new;
5078                         }
5079                 }
5080         }
5081         /*  now parse the list of cpu and put the target in smp mode*/
5082         curr = head;
5083
5084         while (curr != (struct target_list *)NULL) {
5085                 target = curr->target;
5086                 target->smp = 1;
5087                 target->head = head;
5088                 curr = curr->next;
5089         }
5090         if (target->rtos)
5091                 retval = rtos_smp_init(head->target);
5092         return retval;
5093 }
5094
5095
5096 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5097 {
5098         Jim_GetOptInfo goi;
5099         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5100         if (goi.argc < 3) {
5101                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5102                         "<name> <target_type> [<target_options> ...]");
5103                 return JIM_ERR;
5104         }
5105         return target_create(&goi);
5106 }
5107
5108 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5109 {
5110         Jim_GetOptInfo goi;
5111         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5112
5113         /* It's OK to remove this mechanism sometime after August 2010 or so */
5114         LOG_WARNING("don't use numbers as target identifiers; use names");
5115         if (goi.argc != 1) {
5116                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5117                 return JIM_ERR;
5118         }
5119         jim_wide w;
5120         int e = Jim_GetOpt_Wide(&goi, &w);
5121         if (e != JIM_OK)
5122                 return JIM_ERR;
5123
5124         struct target *target;
5125         for (target = all_targets; NULL != target; target = target->next) {
5126                 if (target->target_number != w)
5127                         continue;
5128
5129                 Jim_SetResultString(goi.interp, target_name(target), -1);
5130                 return JIM_OK;
5131         }
5132         {
5133                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5134                 Jim_SetResultFormatted(goi.interp,
5135                         "Target: number %#s does not exist", wObj);
5136                 Jim_FreeNewObj(interp, wObj);
5137         }
5138         return JIM_ERR;
5139 }
5140
5141 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5142 {
5143         if (argc != 1) {
5144                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5145                 return JIM_ERR;
5146         }
5147         unsigned count = 0;
5148         struct target *target = all_targets;
5149         while (NULL != target) {
5150                 target = target->next;
5151                 count++;
5152         }
5153         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5154         return JIM_OK;
5155 }
5156
5157 static const struct command_registration target_subcommand_handlers[] = {
5158         {
5159                 .name = "init",
5160                 .mode = COMMAND_CONFIG,
5161                 .handler = handle_target_init_command,
5162                 .help = "initialize targets",
5163         },
5164         {
5165                 .name = "create",
5166                 /* REVISIT this should be COMMAND_CONFIG ... */
5167                 .mode = COMMAND_ANY,
5168                 .jim_handler = jim_target_create,
5169                 .usage = "name type '-chain-position' name [options ...]",
5170                 .help = "Creates and selects a new target",
5171         },
5172         {
5173                 .name = "current",
5174                 .mode = COMMAND_ANY,
5175                 .jim_handler = jim_target_current,
5176                 .help = "Returns the currently selected target",
5177         },
5178         {
5179                 .name = "types",
5180                 .mode = COMMAND_ANY,
5181                 .jim_handler = jim_target_types,
5182                 .help = "Returns the available target types as "
5183                                 "a list of strings",
5184         },
5185         {
5186                 .name = "names",
5187                 .mode = COMMAND_ANY,
5188                 .jim_handler = jim_target_names,
5189                 .help = "Returns the names of all targets as a list of strings",
5190         },
5191         {
5192                 .name = "number",
5193                 .mode = COMMAND_ANY,
5194                 .jim_handler = jim_target_number,
5195                 .usage = "number",
5196                 .help = "Returns the name of the numbered target "
5197                         "(DEPRECATED)",
5198         },
5199         {
5200                 .name = "count",
5201                 .mode = COMMAND_ANY,
5202                 .jim_handler = jim_target_count,
5203                 .help = "Returns the number of targets as an integer "
5204                         "(DEPRECATED)",
5205         },
5206         {
5207                 .name = "smp",
5208                 .mode = COMMAND_ANY,
5209                 .jim_handler = jim_target_smp,
5210                 .usage = "targetname1 targetname2 ...",
5211                 .help = "gather several target in a smp list"
5212         },
5213
5214         COMMAND_REGISTRATION_DONE
5215 };
5216
5217 struct FastLoad {
5218         uint32_t address;
5219         uint8_t *data;
5220         int length;
5221
5222 };
5223
5224 static int fastload_num;
5225 static struct FastLoad *fastload;
5226
5227 static void free_fastload(void)
5228 {
5229         if (fastload != NULL) {
5230                 int i;
5231                 for (i = 0; i < fastload_num; i++) {
5232                         if (fastload[i].data)
5233                                 free(fastload[i].data);
5234                 }
5235                 free(fastload);
5236                 fastload = NULL;
5237         }
5238 }
5239
5240 COMMAND_HANDLER(handle_fast_load_image_command)
5241 {
5242         uint8_t *buffer;
5243         size_t buf_cnt;
5244         uint32_t image_size;
5245         uint32_t min_address = 0;
5246         uint32_t max_address = 0xffffffff;
5247         int i;
5248
5249         struct image image;
5250
5251         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5252                         &image, &min_address, &max_address);
5253         if (ERROR_OK != retval)
5254                 return retval;
5255
5256         struct duration bench;
5257         duration_start(&bench);
5258
5259         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5260         if (retval != ERROR_OK)
5261                 return retval;
5262
5263         image_size = 0x0;
5264         retval = ERROR_OK;
5265         fastload_num = image.num_sections;
5266         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5267         if (fastload == NULL) {
5268                 command_print(CMD_CTX, "out of memory");
5269                 image_close(&image);
5270                 return ERROR_FAIL;
5271         }
5272         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5273         for (i = 0; i < image.num_sections; i++) {
5274                 buffer = malloc(image.sections[i].size);
5275                 if (buffer == NULL) {
5276                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5277                                                   (int)(image.sections[i].size));
5278                         retval = ERROR_FAIL;
5279                         break;
5280                 }
5281
5282                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5283                 if (retval != ERROR_OK) {
5284                         free(buffer);
5285                         break;
5286                 }
5287
5288                 uint32_t offset = 0;
5289                 uint32_t length = buf_cnt;
5290
5291                 /* DANGER!!! beware of unsigned comparision here!!! */
5292
5293                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5294                                 (image.sections[i].base_address < max_address)) {
5295                         if (image.sections[i].base_address < min_address) {
5296                                 /* clip addresses below */
5297                                 offset += min_address-image.sections[i].base_address;
5298                                 length -= offset;
5299                         }
5300
5301                         if (image.sections[i].base_address + buf_cnt > max_address)
5302                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5303
5304                         fastload[i].address = image.sections[i].base_address + offset;
5305                         fastload[i].data = malloc(length);
5306                         if (fastload[i].data == NULL) {
5307                                 free(buffer);
5308                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5309                                                           length);
5310                                 retval = ERROR_FAIL;
5311                                 break;
5312                         }
5313                         memcpy(fastload[i].data, buffer + offset, length);
5314                         fastload[i].length = length;
5315
5316                         image_size += length;
5317                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5318                                                   (unsigned int)length,
5319                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5320                 }
5321
5322                 free(buffer);
5323         }
5324
5325         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5326                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5327                                 "in %fs (%0.3f KiB/s)", image_size,
5328                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5329
5330                 command_print(CMD_CTX,
5331                                 "WARNING: image has not been loaded to target!"
5332                                 "You can issue a 'fast_load' to finish loading.");
5333         }
5334
5335         image_close(&image);
5336
5337         if (retval != ERROR_OK)
5338                 free_fastload();
5339
5340         return retval;
5341 }
5342
5343 COMMAND_HANDLER(handle_fast_load_command)
5344 {
5345         if (CMD_ARGC > 0)
5346                 return ERROR_COMMAND_SYNTAX_ERROR;
5347         if (fastload == NULL) {
5348                 LOG_ERROR("No image in memory");
5349                 return ERROR_FAIL;
5350         }
5351         int i;
5352         int ms = timeval_ms();
5353         int size = 0;
5354         int retval = ERROR_OK;
5355         for (i = 0; i < fastload_num; i++) {
5356                 struct target *target = get_current_target(CMD_CTX);
5357                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5358                                           (unsigned int)(fastload[i].address),
5359                                           (unsigned int)(fastload[i].length));
5360                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5361                 if (retval != ERROR_OK)
5362                         break;
5363                 size += fastload[i].length;
5364         }
5365         if (retval == ERROR_OK) {
5366                 int after = timeval_ms();
5367                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5368         }
5369         return retval;
5370 }
5371
5372 static const struct command_registration target_command_handlers[] = {
5373         {
5374                 .name = "targets",
5375                 .handler = handle_targets_command,
5376                 .mode = COMMAND_ANY,
5377                 .help = "change current default target (one parameter) "
5378                         "or prints table of all targets (no parameters)",
5379                 .usage = "[target]",
5380         },
5381         {
5382                 .name = "target",
5383                 .mode = COMMAND_CONFIG,
5384                 .help = "configure target",
5385
5386                 .chain = target_subcommand_handlers,
5387         },
5388         COMMAND_REGISTRATION_DONE
5389 };
5390
5391 int target_register_commands(struct command_context *cmd_ctx)
5392 {
5393         return register_commands(cmd_ctx, NULL, target_command_handlers);
5394 }
5395
5396 static bool target_reset_nag = true;
5397
5398 bool get_target_reset_nag(void)
5399 {
5400         return target_reset_nag;
5401 }
5402
5403 COMMAND_HANDLER(handle_target_reset_nag)
5404 {
5405         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5406                         &target_reset_nag, "Nag after each reset about options to improve "
5407                         "performance");
5408 }
5409
5410 COMMAND_HANDLER(handle_ps_command)
5411 {
5412         struct target *target = get_current_target(CMD_CTX);
5413         char *display;
5414         if (target->state != TARGET_HALTED) {
5415                 LOG_INFO("target not halted !!");
5416                 return ERROR_OK;
5417         }
5418
5419         if ((target->rtos) && (target->rtos->type)
5420                         && (target->rtos->type->ps_command)) {
5421                 display = target->rtos->type->ps_command(target);
5422                 command_print(CMD_CTX, "%s", display);
5423                 free(display);
5424                 return ERROR_OK;
5425         } else {
5426                 LOG_INFO("failed");
5427                 return ERROR_TARGET_FAILURE;
5428         }
5429 }
5430
5431 static const struct command_registration target_exec_command_handlers[] = {
5432         {
5433                 .name = "fast_load_image",
5434                 .handler = handle_fast_load_image_command,
5435                 .mode = COMMAND_ANY,
5436                 .help = "Load image into server memory for later use by "
5437                         "fast_load; primarily for profiling",
5438                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5439                         "[min_address [max_length]]",
5440         },
5441         {
5442                 .name = "fast_load",
5443                 .handler = handle_fast_load_command,
5444                 .mode = COMMAND_EXEC,
5445                 .help = "loads active fast load image to current target "
5446                         "- mainly for profiling purposes",
5447                 .usage = "",
5448         },
5449         {
5450                 .name = "profile",
5451                 .handler = handle_profile_command,
5452                 .mode = COMMAND_EXEC,
5453                 .usage = "seconds filename",
5454                 .help = "profiling samples the CPU PC",
5455         },
5456         /** @todo don't register virt2phys() unless target supports it */
5457         {
5458                 .name = "virt2phys",
5459                 .handler = handle_virt2phys_command,
5460                 .mode = COMMAND_ANY,
5461                 .help = "translate a virtual address into a physical address",
5462                 .usage = "virtual_address",
5463         },
5464         {
5465                 .name = "reg",
5466                 .handler = handle_reg_command,
5467                 .mode = COMMAND_EXEC,
5468                 .help = "display or set a register; with no arguments, "
5469                         "displays all registers and their values",
5470                 .usage = "[(register_name|register_number) [value]]",
5471         },
5472         {
5473                 .name = "poll",
5474                 .handler = handle_poll_command,
5475                 .mode = COMMAND_EXEC,
5476                 .help = "poll target state; or reconfigure background polling",
5477                 .usage = "['on'|'off']",
5478         },
5479         {
5480                 .name = "wait_halt",
5481                 .handler = handle_wait_halt_command,
5482                 .mode = COMMAND_EXEC,
5483                 .help = "wait up to the specified number of milliseconds "
5484                         "(default 5) for a previously requested halt",
5485                 .usage = "[milliseconds]",
5486         },
5487         {
5488                 .name = "halt",
5489                 .handler = handle_halt_command,
5490                 .mode = COMMAND_EXEC,
5491                 .help = "request target to halt, then wait up to the specified"
5492                         "number of milliseconds (default 5) for it to complete",
5493                 .usage = "[milliseconds]",
5494         },
5495         {
5496                 .name = "resume",
5497                 .handler = handle_resume_command,
5498                 .mode = COMMAND_EXEC,
5499                 .help = "resume target execution from current PC or address",
5500                 .usage = "[address]",
5501         },
5502         {
5503                 .name = "reset",
5504                 .handler = handle_reset_command,
5505                 .mode = COMMAND_EXEC,
5506                 .usage = "[run|halt|init]",
5507                 .help = "Reset all targets into the specified mode."
5508                         "Default reset mode is run, if not given.",
5509         },
5510         {
5511                 .name = "soft_reset_halt",
5512                 .handler = handle_soft_reset_halt_command,
5513                 .mode = COMMAND_EXEC,
5514                 .usage = "",
5515                 .help = "halt the target and do a soft reset",
5516         },
5517         {
5518                 .name = "step",
5519                 .handler = handle_step_command,
5520                 .mode = COMMAND_EXEC,
5521                 .help = "step one instruction from current PC or address",
5522                 .usage = "[address]",
5523         },
5524         {
5525                 .name = "mdw",
5526                 .handler = handle_md_command,
5527                 .mode = COMMAND_EXEC,
5528                 .help = "display memory words",
5529                 .usage = "['phys'] address [count]",
5530         },
5531         {
5532                 .name = "mdh",
5533                 .handler = handle_md_command,
5534                 .mode = COMMAND_EXEC,
5535                 .help = "display memory half-words",
5536                 .usage = "['phys'] address [count]",
5537         },
5538         {
5539                 .name = "mdb",
5540                 .handler = handle_md_command,
5541                 .mode = COMMAND_EXEC,
5542                 .help = "display memory bytes",
5543                 .usage = "['phys'] address [count]",
5544         },
5545         {
5546                 .name = "mww",
5547                 .handler = handle_mw_command,
5548                 .mode = COMMAND_EXEC,
5549                 .help = "write memory word",
5550                 .usage = "['phys'] address value [count]",
5551         },
5552         {
5553                 .name = "mwh",
5554                 .handler = handle_mw_command,
5555                 .mode = COMMAND_EXEC,
5556                 .help = "write memory half-word",
5557                 .usage = "['phys'] address value [count]",
5558         },
5559         {
5560                 .name = "mwb",
5561                 .handler = handle_mw_command,
5562                 .mode = COMMAND_EXEC,
5563                 .help = "write memory byte",
5564                 .usage = "['phys'] address value [count]",
5565         },
5566         {
5567                 .name = "bp",
5568                 .handler = handle_bp_command,
5569                 .mode = COMMAND_EXEC,
5570                 .help = "list or set hardware or software breakpoint",
5571                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5572         },
5573         {
5574                 .name = "rbp",
5575                 .handler = handle_rbp_command,
5576                 .mode = COMMAND_EXEC,
5577                 .help = "remove breakpoint",
5578                 .usage = "address",
5579         },
5580         {
5581                 .name = "wp",
5582                 .handler = handle_wp_command,
5583                 .mode = COMMAND_EXEC,
5584                 .help = "list (no params) or create watchpoints",
5585                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5586         },
5587         {
5588                 .name = "rwp",
5589                 .handler = handle_rwp_command,
5590                 .mode = COMMAND_EXEC,
5591                 .help = "remove watchpoint",
5592                 .usage = "address",
5593         },
5594         {
5595                 .name = "load_image",
5596                 .handler = handle_load_image_command,
5597                 .mode = COMMAND_EXEC,
5598                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5599                         "[min_address] [max_length]",
5600         },
5601         {
5602                 .name = "dump_image",
5603                 .handler = handle_dump_image_command,
5604                 .mode = COMMAND_EXEC,
5605                 .usage = "filename address size",
5606         },
5607         {
5608                 .name = "verify_image",
5609                 .handler = handle_verify_image_command,
5610                 .mode = COMMAND_EXEC,
5611                 .usage = "filename [offset [type]]",
5612         },
5613         {
5614                 .name = "test_image",
5615                 .handler = handle_test_image_command,
5616                 .mode = COMMAND_EXEC,
5617                 .usage = "filename [offset [type]]",
5618         },
5619         {
5620                 .name = "mem2array",
5621                 .mode = COMMAND_EXEC,
5622                 .jim_handler = jim_mem2array,
5623                 .help = "read 8/16/32 bit memory and return as a TCL array "
5624                         "for script processing",
5625                 .usage = "arrayname bitwidth address count",
5626         },
5627         {
5628                 .name = "array2mem",
5629                 .mode = COMMAND_EXEC,
5630                 .jim_handler = jim_array2mem,
5631                 .help = "convert a TCL array to memory locations "
5632                         "and write the 8/16/32 bit values",
5633                 .usage = "arrayname bitwidth address count",
5634         },
5635         {
5636                 .name = "reset_nag",
5637                 .handler = handle_target_reset_nag,
5638                 .mode = COMMAND_ANY,
5639                 .help = "Nag after each reset about options that could have been "
5640                                 "enabled to improve performance. ",
5641                 .usage = "['enable'|'disable']",
5642         },
5643         {
5644                 .name = "ps",
5645                 .handler = handle_ps_command,
5646                 .mode = COMMAND_EXEC,
5647                 .help = "list all tasks ",
5648                 .usage = " ",
5649         },
5650
5651         COMMAND_REGISTRATION_DONE
5652 };
5653 static int target_register_user_commands(struct command_context *cmd_ctx)
5654 {
5655         int retval = ERROR_OK;
5656         retval = target_request_register_commands(cmd_ctx);
5657         if (retval != ERROR_OK)
5658                 return retval;
5659
5660         retval = trace_register_commands(cmd_ctx);
5661         if (retval != ERROR_OK)
5662                 return retval;
5663
5664
5665         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5666 }