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  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 #include "transport/transport.h"
  59
  60 /* default halt wait timeout (ms) */
  61 #define DEFAULT_HALT_TIMEOUT 5000
  62
  63 static int target_read_buffer_default(struct target *target, uint32_t address,
  64                 uint32_t count, uint8_t *buffer);
  65 static int target_write_buffer_default(struct target *target, uint32_t address,
  66                 uint32_t count, const uint8_t *buffer);
  67 static int target_array2mem(Jim_Interp *interp, struct target *target,
  68                 int argc, Jim_Obj * const *argv);
  69 static int target_mem2array(Jim_Interp *interp, struct target *target,
  70                 int argc, Jim_Obj * const *argv);
  71 static int target_register_user_commands(struct command_context *cmd_ctx);
  72 static int target_get_gdb_fileio_info_default(struct target *target,
  73                 struct gdb_fileio_info *fileio_info);
  74 static int target_gdb_fileio_end_default(struct target *target, int retcode,
  75                 int fileio_errno, bool ctrl_c);
  76 static int target_profiling_default(struct target *target, uint32_t *samples,
  77                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds);
  78
  79 /* targets */
  80 extern struct target_type arm7tdmi_target;
  81 extern struct target_type arm720t_target;
  82 extern struct target_type arm9tdmi_target;
  83 extern struct target_type arm920t_target;
  84 extern struct target_type arm966e_target;
  85 extern struct target_type arm946e_target;
  86 extern struct target_type arm926ejs_target;
  87 extern struct target_type fa526_target;
  88 extern struct target_type feroceon_target;
  89 extern struct target_type dragonite_target;
  90 extern struct target_type xscale_target;
  91 extern struct target_type cortexm_target;
  92 extern struct target_type cortexa_target;
  93 extern struct target_type cortexr4_target;
  94 extern struct target_type arm11_target;
  95 extern struct target_type mips_m4k_target;
  96 extern struct target_type avr_target;
  97 extern struct target_type dsp563xx_target;
  98 extern struct target_type dsp5680xx_target;
  99 extern struct target_type testee_target;
 100 extern struct target_type avr32_ap7k_target;
 101 extern struct target_type hla_target;
 102 extern struct target_type nds32_v2_target;
 103 extern struct target_type nds32_v3_target;
 104 extern struct target_type nds32_v3m_target;
 105 extern struct target_type or1k_target;
 106 extern struct target_type quark_x10xx_target;
 107
 108 static struct target_type *target_types[] = {
 109         &arm7tdmi_target,
 110         &arm9tdmi_target,
 111         &arm920t_target,
 112         &arm720t_target,
 113         &arm966e_target,
 114         &arm946e_target,
 115         &arm926ejs_target,
 116         &fa526_target,
 117         &feroceon_target,
 118         &dragonite_target,
 119         &xscale_target,
 120         &cortexm_target,
 121         &cortexa_target,
 122         &cortexr4_target,
 123         &arm11_target,
 124         &mips_m4k_target,
 125         &avr_target,
 126         &dsp563xx_target,
 127         &dsp5680xx_target,
 128         &testee_target,
 129         &avr32_ap7k_target,
 130         &hla_target,
 131         &nds32_v2_target,
 132         &nds32_v3_target,
 133         &nds32_v3m_target,
 134         &or1k_target,
 135         &quark_x10xx_target,
 136         NULL,
 137 };
 138
 139 struct target *all_targets;
 140 static struct target_event_callback *target_event_callbacks;
 141 static struct target_timer_callback *target_timer_callbacks;
 142 LIST_HEAD(target_reset_callback_list);
 143 LIST_HEAD(target_trace_callback_list);
 144 static const int polling_interval = 100;
 145
 146 static const Jim_Nvp nvp_assert[] = {
 147         { .name = "assert", NVP_ASSERT },
 148         { .name = "deassert", NVP_DEASSERT },
 149         { .name = "T", NVP_ASSERT },
 150         { .name = "F", NVP_DEASSERT },
 151         { .name = "t", NVP_ASSERT },
 152         { .name = "f", NVP_DEASSERT },
 153         { .name = NULL, .value = -1 }
 154 };
 155
 156 static const Jim_Nvp nvp_error_target[] = {
 157         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 158         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 159         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 160         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 161         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 162         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 163         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 164         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 165         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 166         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 167         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 168         { .value = -1, .name = NULL }
 169 };
 170
 171 static const char *target_strerror_safe(int err)
 172 {
 173         const Jim_Nvp *n;
 174
 175         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 176         if (n->name == NULL)
 177                 return "unknown";
 178         else
 179                 return n->name;
 180 }
 181
 182 static const Jim_Nvp nvp_target_event[] = {
 183
 184         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 185         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 186         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 187         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 188         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 189
 190         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 191         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 192
 193         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 194         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 195         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 196         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 197         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 198         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 199         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 200         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 201         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 202         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 203         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 204         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 205
 206         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 207         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 208
 209         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 210         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 211
 212         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 213         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 214
 215         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 216         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 217
 218         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 219         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 220
 221         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 222
 223         { .name = NULL, .value = -1 }
 224 };
 225
 226 static const Jim_Nvp nvp_target_state[] = {
 227         { .name = "unknown", .value = TARGET_UNKNOWN },
 228         { .name = "running", .value = TARGET_RUNNING },
 229         { .name = "halted",  .value = TARGET_HALTED },
 230         { .name = "reset",   .value = TARGET_RESET },
 231         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 232         { .name = NULL, .value = -1 },
 233 };
 234
 235 static const Jim_Nvp nvp_target_debug_reason[] = {
 236         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 237         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 238         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 239         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 240         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 241         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 242         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 243         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 244         { .name = NULL, .value = -1 },
 245 };
 246
 247 static const Jim_Nvp nvp_target_endian[] = {
 248         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 249         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 250         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 251         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 252         { .name = NULL,     .value = -1 },
 253 };
 254
 255 static const Jim_Nvp nvp_reset_modes[] = {
 256         { .name = "unknown", .value = RESET_UNKNOWN },
 257         { .name = "run"    , .value = RESET_RUN },
 258         { .name = "halt"   , .value = RESET_HALT },
 259         { .name = "init"   , .value = RESET_INIT },
 260         { .name = NULL     , .value = -1 },
 261 };
 262
 263 const char *debug_reason_name(struct target *t)
 264 {
 265         const char *cp;
 266
 267         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 268                         t->debug_reason)->name;
 269         if (!cp) {
 270                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 271                 cp = "(*BUG*unknown*BUG*)";
 272         }
 273         return cp;
 274 }
 275
 276 const char *target_state_name(struct target *t)
 277 {
 278         const char *cp;
 279         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 280         if (!cp) {
 281                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 282                 cp = "(*BUG*unknown*BUG*)";
 283         }
 284         return cp;
 285 }
 286
 287 const char *target_event_name(enum target_event event)
 288 {
 289         const char *cp;
 290         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 291         if (!cp) {
 292                 LOG_ERROR("Invalid target event: %d", (int)(event));
 293                 cp = "(*BUG*unknown*BUG*)";
 294         }
 295         return cp;
 296 }
 297
 298 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 299 {
 300         const char *cp;
 301         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 302         if (!cp) {
 303                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 304                 cp = "(*BUG*unknown*BUG*)";
 305         }
 306         return cp;
 307 }
 308
 309 /* determine the number of the new target */
 310 static int new_target_number(void)
 311 {
 312         struct target *t;
 313         int x;
 314
 315         /* number is 0 based */
 316         x = -1;
 317         t = all_targets;
 318         while (t) {
 319                 if (x < t->target_number)
 320                         x = t->target_number;
 321                 t = t->next;
 322         }
 323         return x + 1;
 324 }
 325
 326 /* read a uint64_t from a buffer in target memory endianness */
 327 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 328 {
 329         if (target->endianness == TARGET_LITTLE_ENDIAN)
 330                 return le_to_h_u64(buffer);
 331         else
 332                 return be_to_h_u64(buffer);
 333 }
 334
 335 /* read a uint32_t from a buffer in target memory endianness */
 336 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 337 {
 338         if (target->endianness == TARGET_LITTLE_ENDIAN)
 339                 return le_to_h_u32(buffer);
 340         else
 341                 return be_to_h_u32(buffer);
 342 }
 343
 344 /* read a uint24_t from a buffer in target memory endianness */
 345 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 346 {
 347         if (target->endianness == TARGET_LITTLE_ENDIAN)
 348                 return le_to_h_u24(buffer);
 349         else
 350                 return be_to_h_u24(buffer);
 351 }
 352
 353 /* read a uint16_t from a buffer in target memory endianness */
 354 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 355 {
 356         if (target->endianness == TARGET_LITTLE_ENDIAN)
 357                 return le_to_h_u16(buffer);
 358         else
 359                 return be_to_h_u16(buffer);
 360 }
 361
 362 /* read a uint8_t from a buffer in target memory endianness */
 363 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 364 {
 365         return *buffer & 0x0ff;
 366 }
 367
 368 /* write a uint64_t to a buffer in target memory endianness */
 369 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 370 {
 371         if (target->endianness == TARGET_LITTLE_ENDIAN)
 372                 h_u64_to_le(buffer, value);
 373         else
 374                 h_u64_to_be(buffer, value);
 375 }
 376
 377 /* write a uint32_t to a buffer in target memory endianness */
 378 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 379 {
 380         if (target->endianness == TARGET_LITTLE_ENDIAN)
 381                 h_u32_to_le(buffer, value);
 382         else
 383                 h_u32_to_be(buffer, value);
 384 }
 385
 386 /* write a uint24_t to a buffer in target memory endianness */
 387 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 388 {
 389         if (target->endianness == TARGET_LITTLE_ENDIAN)
 390                 h_u24_to_le(buffer, value);
 391         else
 392                 h_u24_to_be(buffer, value);
 393 }
 394
 395 /* write a uint16_t to a buffer in target memory endianness */
 396 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 397 {
 398         if (target->endianness == TARGET_LITTLE_ENDIAN)
 399                 h_u16_to_le(buffer, value);
 400         else
 401                 h_u16_to_be(buffer, value);
 402 }
 403
 404 /* write a uint8_t to a buffer in target memory endianness */
 405 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 406 {
 407         *buffer = value;
 408 }
 409
 410 /* write a uint64_t array to a buffer in target memory endianness */
 411 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 412 {
 413         uint32_t i;
 414         for (i = 0; i < count; i++)
 415                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 416 }
 417
 418 /* write a uint32_t array to a buffer in target memory endianness */
 419 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 420 {
 421         uint32_t i;
 422         for (i = 0; i < count; i++)
 423                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 424 }
 425
 426 /* write a uint16_t array to a buffer in target memory endianness */
 427 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 428 {
 429         uint32_t i;
 430         for (i = 0; i < count; i++)
 431                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 432 }
 433
 434 /* write a uint64_t array to a buffer in target memory endianness */
 435 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 436 {
 437         uint32_t i;
 438         for (i = 0; i < count; i++)
 439                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 440 }
 441
 442 /* write a uint32_t array to a buffer in target memory endianness */
 443 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 444 {
 445         uint32_t i;
 446         for (i = 0; i < count; i++)
 447                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 448 }
 449
 450 /* write a uint16_t array to a buffer in target memory endianness */
 451 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 452 {
 453         uint32_t i;
 454         for (i = 0; i < count; i++)
 455                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 456 }
 457
 458 /* return a pointer to a configured target; id is name or number */
 459 struct target *get_target(const char *id)
 460 {
 461         struct target *target;
 462
 463         /* try as tcltarget name */
 464         for (target = all_targets; target; target = target->next) {
 465                 if (target_name(target) == NULL)
 466                         continue;
 467                 if (strcmp(id, target_name(target)) == 0)
 468                         return target;
 469         }
 470
 471         /* It's OK to remove this fallback sometime after August 2010 or so */
 472
 473         /* no match, try as number */
 474         unsigned num;
 475         if (parse_uint(id, &num) != ERROR_OK)
 476                 return NULL;
 477
 478         for (target = all_targets; target; target = target->next) {
 479                 if (target->target_number == (int)num) {
 480                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 481                                         target_name(target), num);
 482                         return target;
 483                 }
 484         }
 485
 486         return NULL;
 487 }
 488
 489 /* returns a pointer to the n-th configured target */
 490 struct target *get_target_by_num(int num)
 491 {
 492         struct target *target = all_targets;
 493
 494         while (target) {
 495                 if (target->target_number == num)
 496                         return target;
 497                 target = target->next;
 498         }
 499
 500         return NULL;
 501 }
 502
 503 struct target *get_current_target(struct command_context *cmd_ctx)
 504 {
 505         struct target *target = get_target_by_num(cmd_ctx->current_target);
 506
 507         if (target == NULL) {
 508                 LOG_ERROR("BUG: current_target out of bounds");
 509                 exit(-1);
 510         }
 511
 512         return target;
 513 }
 514
 515 int target_poll(struct target *target)
 516 {
 517         int retval;
 518
 519         /* We can't poll until after examine */
 520         if (!target_was_examined(target)) {
 521                 /* Fail silently lest we pollute the log */
 522                 return ERROR_FAIL;
 523         }
 524
 525         retval = target->type->poll(target);
 526         if (retval != ERROR_OK)
 527                 return retval;
 528
 529         if (target->halt_issued) {
 530                 if (target->state == TARGET_HALTED)
 531                         target->halt_issued = false;
 532                 else {
 533                         long long t = timeval_ms() - target->halt_issued_time;
 534                         if (t > DEFAULT_HALT_TIMEOUT) {
 535                                 target->halt_issued = false;
 536                                 LOG_INFO("Halt timed out, wake up GDB.");
 537                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 538                         }
 539                 }
 540         }
 541
 542         return ERROR_OK;
 543 }
 544
 545 int target_halt(struct target *target)
 546 {
 547         int retval;
 548         /* We can't poll until after examine */
 549         if (!target_was_examined(target)) {
 550                 LOG_ERROR("Target not examined yet");
 551                 return ERROR_FAIL;
 552         }
 553
 554         retval = target->type->halt(target);
 555         if (retval != ERROR_OK)
 556                 return retval;
 557
 558         target->halt_issued = true;
 559         target->halt_issued_time = timeval_ms();
 560
 561         return ERROR_OK;
 562 }
 563
 564 /**
 565  * Make the target (re)start executing using its saved execution
 566  * context (possibly with some modifications).
 567  *
 568  * @param target Which target should start executing.
 569  * @param current True to use the target's saved program counter instead
 570  *      of the address parameter
 571  * @param address Optionally used as the program counter.
 572  * @param handle_breakpoints True iff breakpoints at the resumption PC
 573  *      should be skipped.  (For example, maybe execution was stopped by
 574  *      such a breakpoint, in which case it would be counterprodutive to
 575  *      let it re-trigger.
 576  * @param debug_execution False if all working areas allocated by OpenOCD
 577  *      should be released and/or restored to their original contents.
 578  *      (This would for example be true to run some downloaded "helper"
 579  *      algorithm code, which resides in one such working buffer and uses
 580  *      another for data storage.)
 581  *
 582  * @todo Resolve the ambiguity about what the "debug_execution" flag
 583  * signifies.  For example, Target implementations don't agree on how
 584  * it relates to invalidation of the register cache, or to whether
 585  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 586  * to enable breakpoints when running downloaded "helper" algorithms
 587  * (debug_execution true), since the breakpoints would be set to match
 588  * target firmware being debugged, not the helper algorithm.... and
 589  * enabling them could cause such helpers to malfunction (for example,
 590  * by overwriting data with a breakpoint instruction.  On the other
 591  * hand the infrastructure for running such helpers might use this
 592  * procedure but rely on hardware breakpoint to detect termination.)
 593  */
 594 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 595 {
 596         int retval;
 597
 598         /* We can't poll until after examine */
 599         if (!target_was_examined(target)) {
 600                 LOG_ERROR("Target not examined yet");
 601                 return ERROR_FAIL;
 602         }
 603
 604         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 605
 606         /* note that resume *must* be asynchronous. The CPU can halt before
 607          * we poll. The CPU can even halt at the current PC as a result of
 608          * a software breakpoint being inserted by (a bug?) the application.
 609          */
 610         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 611         if (retval != ERROR_OK)
 612                 return retval;
 613
 614         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 615
 616         return retval;
 617 }
 618
 619 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 620 {
 621         char buf[100];
 622         int retval;
 623         Jim_Nvp *n;
 624         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 625         if (n->name == NULL) {
 626                 LOG_ERROR("invalid reset mode");
 627                 return ERROR_FAIL;
 628         }
 629
 630         struct target *target;
 631         for (target = all_targets; target; target = target->next)
 632                 target_call_reset_callbacks(target, reset_mode);
 633
 634         /* disable polling during reset to make reset event scripts
 635          * more predictable, i.e. dr/irscan & pathmove in events will
 636          * not have JTAG operations injected into the middle of a sequence.
 637          */
 638         bool save_poll = jtag_poll_get_enabled();
 639
 640         jtag_poll_set_enabled(false);
 641
 642         sprintf(buf, "ocd_process_reset %s", n->name);
 643         retval = Jim_Eval(cmd_ctx->interp, buf);
 644
 645         jtag_poll_set_enabled(save_poll);
 646
 647         if (retval != JIM_OK) {
 648                 Jim_MakeErrorMessage(cmd_ctx->interp);
 649                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 650                 return ERROR_FAIL;
 651         }
 652
 653         /* We want any events to be processed before the prompt */
 654         retval = target_call_timer_callbacks_now();
 655
 656         for (target = all_targets; target; target = target->next) {
 657                 target->type->check_reset(target);
 658                 target->running_alg = false;
 659         }
 660
 661         return retval;
 662 }
 663
 664 static int identity_virt2phys(struct target *target,
 665                 uint32_t virtual, uint32_t *physical)
 666 {
 667         *physical = virtual;
 668         return ERROR_OK;
 669 }
 670
 671 static int no_mmu(struct target *target, int *enabled)
 672 {
 673         *enabled = 0;
 674         return ERROR_OK;
 675 }
 676
 677 static int default_examine(struct target *target)
 678 {
 679         target_set_examined(target);
 680         return ERROR_OK;
 681 }
 682
 683 /* no check by default */
 684 static int default_check_reset(struct target *target)
 685 {
 686         return ERROR_OK;
 687 }
 688
 689 int target_examine_one(struct target *target)
 690 {
 691         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 692
 693         int retval = target->type->examine(target);
 694         if (retval != ERROR_OK)
 695                 return retval;
 696
 697         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 698
 699         return ERROR_OK;
 700 }
 701
 702 static int jtag_enable_callback(enum jtag_event event, void *priv)
 703 {
 704         struct target *target = priv;
 705
 706         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 707                 return ERROR_OK;
 708
 709         jtag_unregister_event_callback(jtag_enable_callback, target);
 710
 711         return target_examine_one(target);
 712 }
 713
 714 /* Targets that correctly implement init + examine, i.e.
 715  * no communication with target during init:
 716  *
 717  * XScale
 718  */
 719 int target_examine(void)
 720 {
 721         int retval = ERROR_OK;
 722         struct target *target;
 723
 724         for (target = all_targets; target; target = target->next) {
 725                 /* defer examination, but don't skip it */
 726                 if (!target->tap->enabled) {
 727                         jtag_register_event_callback(jtag_enable_callback,
 728                                         target);
 729                         continue;
 730                 }
 731
 732                 retval = target_examine_one(target);
 733                 if (retval != ERROR_OK)
 734                         return retval;
 735         }
 736         return retval;
 737 }
 738
 739 const char *target_type_name(struct target *target)
 740 {
 741         return target->type->name;
 742 }
 743
 744 static int target_soft_reset_halt(struct target *target)
 745 {
 746         if (!target_was_examined(target)) {
 747                 LOG_ERROR("Target not examined yet");
 748                 return ERROR_FAIL;
 749         }
 750         if (!target->type->soft_reset_halt) {
 751                 LOG_ERROR("Target %s does not support soft_reset_halt",
 752                                 target_name(target));
 753                 return ERROR_FAIL;
 754         }
 755         return target->type->soft_reset_halt(target);
 756 }
 757
 758 /**
 759  * Downloads a target-specific native code algorithm to the target,
 760  * and executes it.  * Note that some targets may need to set up, enable,
 761  * and tear down a breakpoint (hard or * soft) to detect algorithm
 762  * termination, while others may support  lower overhead schemes where
 763  * soft breakpoints embedded in the algorithm automatically terminate the
 764  * algorithm.
 765  *
 766  * @param target used to run the algorithm
 767  * @param arch_info target-specific description of the algorithm.
 768  */
 769 int target_run_algorithm(struct target *target,
 770                 int num_mem_params, struct mem_param *mem_params,
 771                 int num_reg_params, struct reg_param *reg_param,
 772                 uint32_t entry_point, uint32_t exit_point,
 773                 int timeout_ms, void *arch_info)
 774 {
 775         int retval = ERROR_FAIL;
 776
 777         if (!target_was_examined(target)) {
 778                 LOG_ERROR("Target not examined yet");
 779                 goto done;
 780         }
 781         if (!target->type->run_algorithm) {
 782                 LOG_ERROR("Target type '%s' does not support %s",
 783                                 target_type_name(target), __func__);
 784                 goto done;
 785         }
 786
 787         target->running_alg = true;
 788         retval = target->type->run_algorithm(target,
 789                         num_mem_params, mem_params,
 790                         num_reg_params, reg_param,
 791                         entry_point, exit_point, timeout_ms, arch_info);
 792         target->running_alg = false;
 793
 794 done:
 795         return retval;
 796 }
 797
 798 /**
 799  * Downloads a target-specific native code algorithm to the target,
 800  * executes and leaves it running.
 801  *
 802  * @param target used to run the algorithm
 803  * @param arch_info target-specific description of the algorithm.
 804  */
 805 int target_start_algorithm(struct target *target,
 806                 int num_mem_params, struct mem_param *mem_params,
 807                 int num_reg_params, struct reg_param *reg_params,
 808                 uint32_t entry_point, uint32_t exit_point,
 809                 void *arch_info)
 810 {
 811         int retval = ERROR_FAIL;
 812
 813         if (!target_was_examined(target)) {
 814                 LOG_ERROR("Target not examined yet");
 815                 goto done;
 816         }
 817         if (!target->type->start_algorithm) {
 818                 LOG_ERROR("Target type '%s' does not support %s",
 819                                 target_type_name(target), __func__);
 820                 goto done;
 821         }
 822         if (target->running_alg) {
 823                 LOG_ERROR("Target is already running an algorithm");
 824                 goto done;
 825         }
 826
 827         target->running_alg = true;
 828         retval = target->type->start_algorithm(target,
 829                         num_mem_params, mem_params,
 830                         num_reg_params, reg_params,
 831                         entry_point, exit_point, arch_info);
 832
 833 done:
 834         return retval;
 835 }
 836
 837 /**
 838  * Waits for an algorithm started with target_start_algorithm() to complete.
 839  *
 840  * @param target used to run the algorithm
 841  * @param arch_info target-specific description of the algorithm.
 842  */
 843 int target_wait_algorithm(struct target *target,
 844                 int num_mem_params, struct mem_param *mem_params,
 845                 int num_reg_params, struct reg_param *reg_params,
 846                 uint32_t exit_point, int timeout_ms,
 847                 void *arch_info)
 848 {
 849         int retval = ERROR_FAIL;
 850
 851         if (!target->type->wait_algorithm) {
 852                 LOG_ERROR("Target type '%s' does not support %s",
 853                                 target_type_name(target), __func__);
 854                 goto done;
 855         }
 856         if (!target->running_alg) {
 857                 LOG_ERROR("Target is not running an algorithm");
 858                 goto done;
 859         }
 860
 861         retval = target->type->wait_algorithm(target,
 862                         num_mem_params, mem_params,
 863                         num_reg_params, reg_params,
 864                         exit_point, timeout_ms, arch_info);
 865         if (retval != ERROR_TARGET_TIMEOUT)
 866                 target->running_alg = false;
 867
 868 done:
 869         return retval;
 870 }
 871
 872 /**
 873  * Executes a target-specific native code algorithm in the target.
 874  * It differs from target_run_algorithm in that the algorithm is asynchronous.
 875  * Because of this it requires an compliant algorithm:
 876  * see contrib/loaders/flash/stm32f1x.S for example.
 877  *
 878  * @param target used to run the algorithm
 879  */
 880
 881 int target_run_flash_async_algorithm(struct target *target,
 882                 const uint8_t *buffer, uint32_t count, int block_size,
 883                 int num_mem_params, struct mem_param *mem_params,
 884                 int num_reg_params, struct reg_param *reg_params,
 885                 uint32_t buffer_start, uint32_t buffer_size,
 886                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 887 {
 888         int retval;
 889         int timeout = 0;
 890
 891         const uint8_t *buffer_orig = buffer;
 892
 893         /* Set up working area. First word is write pointer, second word is read pointer,
 894          * rest is fifo data area. */
 895         uint32_t wp_addr = buffer_start;
 896         uint32_t rp_addr = buffer_start + 4;
 897         uint32_t fifo_start_addr = buffer_start + 8;
 898         uint32_t fifo_end_addr = buffer_start + buffer_size;
 899
 900         uint32_t wp = fifo_start_addr;
 901         uint32_t rp = fifo_start_addr;
 902
 903         /* validate block_size is 2^n */
 904         assert(!block_size || !(block_size & (block_size - 1)));
 905
 906         retval = target_write_u32(target, wp_addr, wp);
 907         if (retval != ERROR_OK)
 908                 return retval;
 909         retval = target_write_u32(target, rp_addr, rp);
 910         if (retval != ERROR_OK)
 911                 return retval;
 912
 913         /* Start up algorithm on target and let it idle while writing the first chunk */
 914         retval = target_start_algorithm(target, num_mem_params, mem_params,
 915                         num_reg_params, reg_params,
 916                         entry_point,
 917                         exit_point,
 918                         arch_info);
 919
 920         if (retval != ERROR_OK) {
 921                 LOG_ERROR("error starting target flash write algorithm");
 922                 return retval;
 923         }
 924
 925         while (count > 0) {
 926
 927                 retval = target_read_u32(target, rp_addr, &rp);
 928                 if (retval != ERROR_OK) {
 929                         LOG_ERROR("failed to get read pointer");
 930                         break;
 931                 }
 932
 933                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 934                         (size_t) (buffer - buffer_orig), count, wp, rp);
 935
 936                 if (rp == 0) {
 937                         LOG_ERROR("flash write algorithm aborted by target");
 938                         retval = ERROR_FLASH_OPERATION_FAILED;
 939                         break;
 940                 }
 941
 942                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 943                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 944                         break;
 945                 }
 946
 947                 /* Count the number of bytes available in the fifo without
 948                  * crossing the wrap around. Make sure to not fill it completely,
 949                  * because that would make wp == rp and that's the empty condition. */
 950                 uint32_t thisrun_bytes;
 951                 if (rp > wp)
 952                         thisrun_bytes = rp - wp - block_size;
 953                 else if (rp > fifo_start_addr)
 954                         thisrun_bytes = fifo_end_addr - wp;
 955                 else
 956                         thisrun_bytes = fifo_end_addr - wp - block_size;
 957
 958                 if (thisrun_bytes == 0) {
 959                         /* Throttle polling a bit if transfer is (much) faster than flash
 960                          * programming. The exact delay shouldn't matter as long as it's
 961                          * less than buffer size / flash speed. This is very unlikely to
 962                          * run when using high latency connections such as USB. */
 963                         alive_sleep(10);
 964
 965                         /* to stop an infinite loop on some targets check and increment a timeout
 966                          * this issue was observed on a stellaris using the new ICDI interface */
 967                         if (timeout++ >= 500) {
 968                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
 969                                 return ERROR_FLASH_OPERATION_FAILED;
 970                         }
 971                         continue;
 972                 }
 973
 974                 /* reset our timeout */
 975                 timeout = 0;
 976
 977                 /* Limit to the amount of data we actually want to write */
 978                 if (thisrun_bytes > count * block_size)
 979                         thisrun_bytes = count * block_size;
 980
 981                 /* Write data to fifo */
 982                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 983                 if (retval != ERROR_OK)
 984                         break;
 985
 986                 /* Update counters and wrap write pointer */
 987                 buffer += thisrun_bytes;
 988                 count -= thisrun_bytes / block_size;
 989                 wp += thisrun_bytes;
 990                 if (wp >= fifo_end_addr)
 991                         wp = fifo_start_addr;
 992
 993                 /* Store updated write pointer to target */
 994                 retval = target_write_u32(target, wp_addr, wp);
 995                 if (retval != ERROR_OK)
 996                         break;
 997         }
 998
 999         if (retval != ERROR_OK) {
1000                 /* abort flash write algorithm on target */
1001                 target_write_u32(target, wp_addr, 0);
1002         }
1003
1004         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1005                         num_reg_params, reg_params,
1006                         exit_point,
1007                         10000,
1008                         arch_info);
1009
1010         if (retval2 != ERROR_OK) {
1011                 LOG_ERROR("error waiting for target flash write algorithm");
1012                 retval = retval2;
1013         }
1014
1015         return retval;
1016 }
1017
1018 int target_read_memory(struct target *target,
1019                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1020 {
1021         if (!target_was_examined(target)) {
1022                 LOG_ERROR("Target not examined yet");
1023                 return ERROR_FAIL;
1024         }
1025         if (!target->type->read_memory) {
1026                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1027                 return ERROR_FAIL;
1028         }
1029         return target->type->read_memory(target, address, size, count, buffer);
1030 }
1031
1032 int target_read_phys_memory(struct target *target,
1033                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1034 {
1035         if (!target_was_examined(target)) {
1036                 LOG_ERROR("Target not examined yet");
1037                 return ERROR_FAIL;
1038         }
1039         if (!target->type->read_phys_memory) {
1040                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1041                 return ERROR_FAIL;
1042         }
1043         return target->type->read_phys_memory(target, address, size, count, buffer);
1044 }
1045
1046 int target_write_memory(struct target *target,
1047                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1048 {
1049         if (!target_was_examined(target)) {
1050                 LOG_ERROR("Target not examined yet");
1051                 return ERROR_FAIL;
1052         }
1053         if (!target->type->write_memory) {
1054                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1055                 return ERROR_FAIL;
1056         }
1057         return target->type->write_memory(target, address, size, count, buffer);
1058 }
1059
1060 int target_write_phys_memory(struct target *target,
1061                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1062 {
1063         if (!target_was_examined(target)) {
1064                 LOG_ERROR("Target not examined yet");
1065                 return ERROR_FAIL;
1066         }
1067         if (!target->type->write_phys_memory) {
1068                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1069                 return ERROR_FAIL;
1070         }
1071         return target->type->write_phys_memory(target, address, size, count, buffer);
1072 }
1073
1074 int target_add_breakpoint(struct target *target,
1075                 struct breakpoint *breakpoint)
1076 {
1077         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1078                 LOG_WARNING("target %s is not halted", target_name(target));
1079                 return ERROR_TARGET_NOT_HALTED;
1080         }
1081         return target->type->add_breakpoint(target, breakpoint);
1082 }
1083
1084 int target_add_context_breakpoint(struct target *target,
1085                 struct breakpoint *breakpoint)
1086 {
1087         if (target->state != TARGET_HALTED) {
1088                 LOG_WARNING("target %s is not halted", target_name(target));
1089                 return ERROR_TARGET_NOT_HALTED;
1090         }
1091         return target->type->add_context_breakpoint(target, breakpoint);
1092 }
1093
1094 int target_add_hybrid_breakpoint(struct target *target,
1095                 struct breakpoint *breakpoint)
1096 {
1097         if (target->state != TARGET_HALTED) {
1098                 LOG_WARNING("target %s is not halted", target_name(target));
1099                 return ERROR_TARGET_NOT_HALTED;
1100         }
1101         return target->type->add_hybrid_breakpoint(target, breakpoint);
1102 }
1103
1104 int target_remove_breakpoint(struct target *target,
1105                 struct breakpoint *breakpoint)
1106 {
1107         return target->type->remove_breakpoint(target, breakpoint);
1108 }
1109
1110 int target_add_watchpoint(struct target *target,
1111                 struct watchpoint *watchpoint)
1112 {
1113         if (target->state != TARGET_HALTED) {
1114                 LOG_WARNING("target %s is not halted", target_name(target));
1115                 return ERROR_TARGET_NOT_HALTED;
1116         }
1117         return target->type->add_watchpoint(target, watchpoint);
1118 }
1119 int target_remove_watchpoint(struct target *target,
1120                 struct watchpoint *watchpoint)
1121 {
1122         return target->type->remove_watchpoint(target, watchpoint);
1123 }
1124 int target_hit_watchpoint(struct target *target,
1125                 struct watchpoint **hit_watchpoint)
1126 {
1127         if (target->state != TARGET_HALTED) {
1128                 LOG_WARNING("target %s is not halted", target->cmd_name);
1129                 return ERROR_TARGET_NOT_HALTED;
1130         }
1131
1132         if (target->type->hit_watchpoint == NULL) {
1133                 /* For backward compatible, if hit_watchpoint is not implemented,
1134                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1135                  * information. */
1136                 return ERROR_FAIL;
1137         }
1138
1139         return target->type->hit_watchpoint(target, hit_watchpoint);
1140 }
1141
1142 int target_get_gdb_reg_list(struct target *target,
1143                 struct reg **reg_list[], int *reg_list_size,
1144                 enum target_register_class reg_class)
1145 {
1146         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1147 }
1148 int target_step(struct target *target,
1149                 int current, uint32_t address, int handle_breakpoints)
1150 {
1151         return target->type->step(target, current, address, handle_breakpoints);
1152 }
1153
1154 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1155 {
1156         if (target->state != TARGET_HALTED) {
1157                 LOG_WARNING("target %s is not halted", target->cmd_name);
1158                 return ERROR_TARGET_NOT_HALTED;
1159         }
1160         return target->type->get_gdb_fileio_info(target, fileio_info);
1161 }
1162
1163 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1164 {
1165         if (target->state != TARGET_HALTED) {
1166                 LOG_WARNING("target %s is not halted", target->cmd_name);
1167                 return ERROR_TARGET_NOT_HALTED;
1168         }
1169         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1170 }
1171
1172 int target_profiling(struct target *target, uint32_t *samples,
1173                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1174 {
1175         if (target->state != TARGET_HALTED) {
1176                 LOG_WARNING("target %s is not halted", target->cmd_name);
1177                 return ERROR_TARGET_NOT_HALTED;
1178         }
1179         return target->type->profiling(target, samples, max_num_samples,
1180                         num_samples, seconds);
1181 }
1182
1183 /**
1184  * Reset the @c examined flag for the given target.
1185  * Pure paranoia -- targets are zeroed on allocation.
1186  */
1187 static void target_reset_examined(struct target *target)
1188 {
1189         target->examined = false;
1190 }
1191
1192 static int handle_target(void *priv);
1193
1194 static int target_init_one(struct command_context *cmd_ctx,
1195                 struct target *target)
1196 {
1197         target_reset_examined(target);
1198
1199         struct target_type *type = target->type;
1200         if (type->examine == NULL)
1201                 type->examine = default_examine;
1202
1203         if (type->check_reset == NULL)
1204                 type->check_reset = default_check_reset;
1205
1206         assert(type->init_target != NULL);
1207
1208         int retval = type->init_target(cmd_ctx, target);
1209         if (ERROR_OK != retval) {
1210                 LOG_ERROR("target '%s' init failed", target_name(target));
1211                 return retval;
1212         }
1213
1214         /* Sanity-check MMU support ... stub in what we must, to help
1215          * implement it in stages, but warn if we need to do so.
1216          */
1217         if (type->mmu) {
1218                 if (type->virt2phys == NULL) {
1219                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1220                         type->virt2phys = identity_virt2phys;
1221                 }
1222         } else {
1223                 /* Make sure no-MMU targets all behave the same:  make no
1224                  * distinction between physical and virtual addresses, and
1225                  * ensure that virt2phys() is always an identity mapping.
1226                  */
1227                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1228                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1229
1230                 type->mmu = no_mmu;
1231                 type->write_phys_memory = type->write_memory;
1232                 type->read_phys_memory = type->read_memory;
1233                 type->virt2phys = identity_virt2phys;
1234         }
1235
1236         if (target->type->read_buffer == NULL)
1237                 target->type->read_buffer = target_read_buffer_default;
1238
1239         if (target->type->write_buffer == NULL)
1240                 target->type->write_buffer = target_write_buffer_default;
1241
1242         if (target->type->get_gdb_fileio_info == NULL)
1243                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1244
1245         if (target->type->gdb_fileio_end == NULL)
1246                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1247
1248         if (target->type->profiling == NULL)
1249                 target->type->profiling = target_profiling_default;
1250
1251         return ERROR_OK;
1252 }
1253
1254 static int target_init(struct command_context *cmd_ctx)
1255 {
1256         struct target *target;
1257         int retval;
1258
1259         for (target = all_targets; target; target = target->next) {
1260                 retval = target_init_one(cmd_ctx, target);
1261                 if (ERROR_OK != retval)
1262                         return retval;
1263         }
1264
1265         if (!all_targets)
1266                 return ERROR_OK;
1267
1268         retval = target_register_user_commands(cmd_ctx);
1269         if (ERROR_OK != retval)
1270                 return retval;
1271
1272         retval = target_register_timer_callback(&handle_target,
1273                         polling_interval, 1, cmd_ctx->interp);
1274         if (ERROR_OK != retval)
1275                 return retval;
1276
1277         return ERROR_OK;
1278 }
1279
1280 COMMAND_HANDLER(handle_target_init_command)
1281 {
1282         int retval;
1283
1284         if (CMD_ARGC != 0)
1285                 return ERROR_COMMAND_SYNTAX_ERROR;
1286
1287         static bool target_initialized;
1288         if (target_initialized) {
1289                 LOG_INFO("'target init' has already been called");
1290                 return ERROR_OK;
1291         }
1292         target_initialized = true;
1293
1294         retval = command_run_line(CMD_CTX, "init_targets");
1295         if (ERROR_OK != retval)
1296                 return retval;
1297
1298         retval = command_run_line(CMD_CTX, "init_target_events");
1299         if (ERROR_OK != retval)
1300                 return retval;
1301
1302         retval = command_run_line(CMD_CTX, "init_board");
1303         if (ERROR_OK != retval)
1304                 return retval;
1305
1306         LOG_DEBUG("Initializing targets...");
1307         return target_init(CMD_CTX);
1308 }
1309
1310 int target_register_event_callback(int (*callback)(struct target *target,
1311                 enum target_event event, void *priv), void *priv)
1312 {
1313         struct target_event_callback **callbacks_p = &target_event_callbacks;
1314
1315         if (callback == NULL)
1316                 return ERROR_COMMAND_SYNTAX_ERROR;
1317
1318         if (*callbacks_p) {
1319                 while ((*callbacks_p)->next)
1320                         callbacks_p = &((*callbacks_p)->next);
1321                 callbacks_p = &((*callbacks_p)->next);
1322         }
1323
1324         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1325         (*callbacks_p)->callback = callback;
1326         (*callbacks_p)->priv = priv;
1327         (*callbacks_p)->next = NULL;
1328
1329         return ERROR_OK;
1330 }
1331
1332 int target_register_reset_callback(int (*callback)(struct target *target,
1333                 enum target_reset_mode reset_mode, void *priv), void *priv)
1334 {
1335         struct target_reset_callback *entry;
1336
1337         if (callback == NULL)
1338                 return ERROR_COMMAND_SYNTAX_ERROR;
1339
1340         entry = malloc(sizeof(struct target_reset_callback));
1341         if (entry == NULL) {
1342                 LOG_ERROR("error allocating buffer for reset callback entry");
1343                 return ERROR_COMMAND_SYNTAX_ERROR;
1344         }
1345
1346         entry->callback = callback;
1347         entry->priv = priv;
1348         list_add(&entry->list, &target_reset_callback_list);
1349
1350
1351         return ERROR_OK;
1352 }
1353
1354 int target_register_trace_callback(int (*callback)(struct target *target,
1355                 size_t len, uint8_t *data, void *priv), void *priv)
1356 {
1357         struct target_trace_callback *entry;
1358
1359         if (callback == NULL)
1360                 return ERROR_COMMAND_SYNTAX_ERROR;
1361
1362         entry = malloc(sizeof(struct target_trace_callback));
1363         if (entry == NULL) {
1364                 LOG_ERROR("error allocating buffer for trace callback entry");
1365                 return ERROR_COMMAND_SYNTAX_ERROR;
1366         }
1367
1368         entry->callback = callback;
1369         entry->priv = priv;
1370         list_add(&entry->list, &target_trace_callback_list);
1371
1372
1373         return ERROR_OK;
1374 }
1375
1376 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1377 {
1378         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1379         struct timeval now;
1380
1381         if (callback == NULL)
1382                 return ERROR_COMMAND_SYNTAX_ERROR;
1383
1384         if (*callbacks_p) {
1385                 while ((*callbacks_p)->next)
1386                         callbacks_p = &((*callbacks_p)->next);
1387                 callbacks_p = &((*callbacks_p)->next);
1388         }
1389
1390         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1391         (*callbacks_p)->callback = callback;
1392         (*callbacks_p)->periodic = periodic;
1393         (*callbacks_p)->time_ms = time_ms;
1394         (*callbacks_p)->removed = false;
1395
1396         gettimeofday(&now, NULL);
1397         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1398         time_ms -= (time_ms % 1000);
1399         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1400         if ((*callbacks_p)->when.tv_usec > 1000000) {
1401                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1402                 (*callbacks_p)->when.tv_sec += 1;
1403         }
1404
1405         (*callbacks_p)->priv = priv;
1406         (*callbacks_p)->next = NULL;
1407
1408         return ERROR_OK;
1409 }
1410
1411 int target_unregister_event_callback(int (*callback)(struct target *target,
1412                 enum target_event event, void *priv), void *priv)
1413 {
1414         struct target_event_callback **p = &target_event_callbacks;
1415         struct target_event_callback *c = target_event_callbacks;
1416
1417         if (callback == NULL)
1418                 return ERROR_COMMAND_SYNTAX_ERROR;
1419
1420         while (c) {
1421                 struct target_event_callback *next = c->next;
1422                 if ((c->callback == callback) && (c->priv == priv)) {
1423                         *p = next;
1424                         free(c);
1425                         return ERROR_OK;
1426                 } else
1427                         p = &(c->next);
1428                 c = next;
1429         }
1430
1431         return ERROR_OK;
1432 }
1433
1434 int target_unregister_reset_callback(int (*callback)(struct target *target,
1435                 enum target_reset_mode reset_mode, void *priv), void *priv)
1436 {
1437         struct target_reset_callback *entry;
1438
1439         if (callback == NULL)
1440                 return ERROR_COMMAND_SYNTAX_ERROR;
1441
1442         list_for_each_entry(entry, &target_reset_callback_list, list) {
1443                 if (entry->callback == callback && entry->priv == priv) {
1444                         list_del(&entry->list);
1445                         free(entry);
1446                         break;
1447                 }
1448         }
1449
1450         return ERROR_OK;
1451 }
1452
1453 int target_unregister_trace_callback(int (*callback)(struct target *target,
1454                 size_t len, uint8_t *data, void *priv), void *priv)
1455 {
1456         struct target_trace_callback *entry;
1457
1458         if (callback == NULL)
1459                 return ERROR_COMMAND_SYNTAX_ERROR;
1460
1461         list_for_each_entry(entry, &target_trace_callback_list, list) {
1462                 if (entry->callback == callback && entry->priv == priv) {
1463                         list_del(&entry->list);
1464                         free(entry);
1465                         break;
1466                 }
1467         }
1468
1469         return ERROR_OK;
1470 }
1471
1472 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1473 {
1474         if (callback == NULL)
1475                 return ERROR_COMMAND_SYNTAX_ERROR;
1476
1477         for (struct target_timer_callback *c = target_timer_callbacks;
1478              c; c = c->next) {
1479                 if ((c->callback == callback) && (c->priv == priv)) {
1480                         c->removed = true;
1481                         return ERROR_OK;
1482                 }
1483         }
1484
1485         return ERROR_FAIL;
1486 }
1487
1488 int target_call_event_callbacks(struct target *target, enum target_event event)
1489 {
1490         struct target_event_callback *callback = target_event_callbacks;
1491         struct target_event_callback *next_callback;
1492
1493         if (event == TARGET_EVENT_HALTED) {
1494                 /* execute early halted first */
1495                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1496         }
1497
1498         LOG_DEBUG("target event %i (%s)", event,
1499                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1500
1501         target_handle_event(target, event);
1502
1503         while (callback) {
1504                 next_callback = callback->next;
1505                 callback->callback(target, event, callback->priv);
1506                 callback = next_callback;
1507         }
1508
1509         return ERROR_OK;
1510 }
1511
1512 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1513 {
1514         struct target_reset_callback *callback;
1515
1516         LOG_DEBUG("target reset %i (%s)", reset_mode,
1517                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1518
1519         list_for_each_entry(callback, &target_reset_callback_list, list)
1520                 callback->callback(target, reset_mode, callback->priv);
1521
1522         return ERROR_OK;
1523 }
1524
1525 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1526 {
1527         struct target_trace_callback *callback;
1528
1529         list_for_each_entry(callback, &target_trace_callback_list, list)
1530                 callback->callback(target, len, data, callback->priv);
1531
1532         return ERROR_OK;
1533 }
1534
1535 static int target_timer_callback_periodic_restart(
1536                 struct target_timer_callback *cb, struct timeval *now)
1537 {
1538         int time_ms = cb->time_ms;
1539         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1540         time_ms -= (time_ms % 1000);
1541         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1542         if (cb->when.tv_usec > 1000000) {
1543                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1544                 cb->when.tv_sec += 1;
1545         }
1546         return ERROR_OK;
1547 }
1548
1549 static int target_call_timer_callback(struct target_timer_callback *cb,
1550                 struct timeval *now)
1551 {
1552         cb->callback(cb->priv);
1553
1554         if (cb->periodic)
1555                 return target_timer_callback_periodic_restart(cb, now);
1556
1557         return target_unregister_timer_callback(cb->callback, cb->priv);
1558 }
1559
1560 static int target_call_timer_callbacks_check_time(int checktime)
1561 {
1562         static bool callback_processing;
1563
1564         /* Do not allow nesting */
1565         if (callback_processing)
1566                 return ERROR_OK;
1567
1568         callback_processing = true;
1569
1570         keep_alive();
1571
1572         struct timeval now;
1573         gettimeofday(&now, NULL);
1574
1575         /* Store an address of the place containing a pointer to the
1576          * next item; initially, that's a standalone "root of the
1577          * list" variable. */
1578         struct target_timer_callback **callback = &target_timer_callbacks;
1579         while (*callback) {
1580                 if ((*callback)->removed) {
1581                         struct target_timer_callback *p = *callback;
1582                         *callback = (*callback)->next;
1583                         free(p);
1584                         continue;
1585                 }
1586
1587                 bool call_it = (*callback)->callback &&
1588                         ((!checktime && (*callback)->periodic) ||
1589                          now.tv_sec > (*callback)->when.tv_sec ||
1590                          (now.tv_sec == (*callback)->when.tv_sec &&
1591                           now.tv_usec >= (*callback)->when.tv_usec));
1592
1593                 if (call_it)
1594                         target_call_timer_callback(*callback, &now);
1595
1596                 callback = &(*callback)->next;
1597         }
1598
1599         callback_processing = false;
1600         return ERROR_OK;
1601 }
1602
1603 int target_call_timer_callbacks(void)
1604 {
1605         return target_call_timer_callbacks_check_time(1);
1606 }
1607
1608 /* invoke periodic callbacks immediately */
1609 int target_call_timer_callbacks_now(void)
1610 {
1611         return target_call_timer_callbacks_check_time(0);
1612 }
1613
1614 /* Prints the working area layout for debug purposes */
1615 static void print_wa_layout(struct target *target)
1616 {
1617         struct working_area *c = target->working_areas;
1618
1619         while (c) {
1620                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1621                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1622                         c->address, c->address + c->size - 1, c->size);
1623                 c = c->next;
1624         }
1625 }
1626
1627 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1628 static void target_split_working_area(struct working_area *area, uint32_t size)
1629 {
1630         assert(area->free); /* Shouldn't split an allocated area */
1631         assert(size <= area->size); /* Caller should guarantee this */
1632
1633         /* Split only if not already the right size */
1634         if (size < area->size) {
1635                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1636
1637                 if (new_wa == NULL)
1638                         return;
1639
1640                 new_wa->next = area->next;
1641                 new_wa->size = area->size - size;
1642                 new_wa->address = area->address + size;
1643                 new_wa->backup = NULL;
1644                 new_wa->user = NULL;
1645                 new_wa->free = true;
1646
1647                 area->next = new_wa;
1648                 area->size = size;
1649
1650                 /* If backup memory was allocated to this area, it has the wrong size
1651                  * now so free it and it will be reallocated if/when needed */
1652                 if (area->backup) {
1653                         free(area->backup);
1654                         area->backup = NULL;
1655                 }
1656         }
1657 }
1658
1659 /* Merge all adjacent free areas into one */
1660 static void target_merge_working_areas(struct target *target)
1661 {
1662         struct working_area *c = target->working_areas;
1663
1664         while (c && c->next) {
1665                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1666
1667                 /* Find two adjacent free areas */
1668                 if (c->free && c->next->free) {
1669                         /* Merge the last into the first */
1670                         c->size += c->next->size;
1671
1672                         /* Remove the last */
1673                         struct working_area *to_be_freed = c->next;
1674                         c->next = c->next->next;
1675                         if (to_be_freed->backup)
1676                                 free(to_be_freed->backup);
1677                         free(to_be_freed);
1678
1679                         /* If backup memory was allocated to the remaining area, it's has
1680                          * the wrong size now */
1681                         if (c->backup) {
1682                                 free(c->backup);
1683                                 c->backup = NULL;
1684                         }
1685                 } else {
1686                         c = c->next;
1687                 }
1688         }
1689 }
1690
1691 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1692 {
1693         /* Reevaluate working area address based on MMU state*/
1694         if (target->working_areas == NULL) {
1695                 int retval;
1696                 int enabled;
1697
1698                 retval = target->type->mmu(target, &enabled);
1699                 if (retval != ERROR_OK)
1700                         return retval;
1701
1702                 if (!enabled) {
1703                         if (target->working_area_phys_spec) {
1704                                 LOG_DEBUG("MMU disabled, using physical "
1705                                         "address for working memory 0x%08"PRIx32,
1706                                         target->working_area_phys);
1707                                 target->working_area = target->working_area_phys;
1708                         } else {
1709                                 LOG_ERROR("No working memory available. "
1710                                         "Specify -work-area-phys to target.");
1711                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1712                         }
1713                 } else {
1714                         if (target->working_area_virt_spec) {
1715                                 LOG_DEBUG("MMU enabled, using virtual "
1716                                         "address for working memory 0x%08"PRIx32,
1717                                         target->working_area_virt);
1718                                 target->working_area = target->working_area_virt;
1719                         } else {
1720                                 LOG_ERROR("No working memory available. "
1721                                         "Specify -work-area-virt to target.");
1722                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1723                         }
1724                 }
1725
1726                 /* Set up initial working area on first call */
1727                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1728                 if (new_wa) {
1729                         new_wa->next = NULL;
1730                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1731                         new_wa->address = target->working_area;
1732                         new_wa->backup = NULL;
1733                         new_wa->user = NULL;
1734                         new_wa->free = true;
1735                 }
1736
1737                 target->working_areas = new_wa;
1738         }
1739
1740         /* only allocate multiples of 4 byte */
1741         if (size % 4)
1742                 size = (size + 3) & (~3UL);
1743
1744         struct working_area *c = target->working_areas;
1745
1746         /* Find the first large enough working area */
1747         while (c) {
1748                 if (c->free && c->size >= size)
1749                         break;
1750                 c = c->next;
1751         }
1752
1753         if (c == NULL)
1754                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1755
1756         /* Split the working area into the requested size */
1757         target_split_working_area(c, size);
1758
1759         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1760
1761         if (target->backup_working_area) {
1762                 if (c->backup == NULL) {
1763                         c->backup = malloc(c->size);
1764                         if (c->backup == NULL)
1765                                 return ERROR_FAIL;
1766                 }
1767
1768                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1769                 if (retval != ERROR_OK)
1770                         return retval;
1771         }
1772
1773         /* mark as used, and return the new (reused) area */
1774         c->free = false;
1775         *area = c;
1776
1777         /* user pointer */
1778         c->user = area;
1779
1780         print_wa_layout(target);
1781
1782         return ERROR_OK;
1783 }
1784
1785 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1786 {
1787         int retval;
1788
1789         retval = target_alloc_working_area_try(target, size, area);
1790         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1791                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1792         return retval;
1793
1794 }
1795
1796 static int target_restore_working_area(struct target *target, struct working_area *area)
1797 {
1798         int retval = ERROR_OK;
1799
1800         if (target->backup_working_area && area->backup != NULL) {
1801                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1802                 if (retval != ERROR_OK)
1803                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1804                                         area->size, area->address);
1805         }
1806
1807         return retval;
1808 }
1809
1810 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1811 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1812 {
1813         int retval = ERROR_OK;
1814
1815         if (area->free)
1816                 return retval;
1817
1818         if (restore) {
1819                 retval = target_restore_working_area(target, area);
1820                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1821                 if (retval != ERROR_OK)
1822                         return retval;
1823         }
1824
1825         area->free = true;
1826
1827         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1828                         area->size, area->address);
1829
1830         /* mark user pointer invalid */
1831         /* TODO: Is this really safe? It points to some previous caller's memory.
1832          * How could we know that the area pointer is still in that place and not
1833          * some other vital data? What's the purpose of this, anyway? */
1834         *area->user = NULL;
1835         area->user = NULL;
1836
1837         target_merge_working_areas(target);
1838
1839         print_wa_layout(target);
1840
1841         return retval;
1842 }
1843
1844 int target_free_working_area(struct target *target, struct working_area *area)
1845 {
1846         return target_free_working_area_restore(target, area, 1);
1847 }
1848
1849 void target_quit(void)
1850 {
1851         struct target_event_callback *pe = target_event_callbacks;
1852         while (pe) {
1853                 struct target_event_callback *t = pe->next;
1854                 free(pe);
1855                 pe = t;
1856         }
1857         target_event_callbacks = NULL;
1858
1859         struct target_timer_callback *pt = target_timer_callbacks;
1860         while (pt) {
1861                 struct target_timer_callback *t = pt->next;
1862                 free(pt);
1863                 pt = t;
1864         }
1865         target_timer_callbacks = NULL;
1866
1867         for (struct target *target = all_targets;
1868              target; target = target->next) {
1869                 if (target->type->deinit_target)
1870                         target->type->deinit_target(target);
1871         }
1872 }
1873
1874 /* free resources and restore memory, if restoring memory fails,
1875  * free up resources anyway
1876  */
1877 static void target_free_all_working_areas_restore(struct target *target, int restore)
1878 {
1879         struct working_area *c = target->working_areas;
1880
1881         LOG_DEBUG("freeing all working areas");
1882
1883         /* Loop through all areas, restoring the allocated ones and marking them as free */
1884         while (c) {
1885                 if (!c->free) {
1886                         if (restore)
1887                                 target_restore_working_area(target, c);
1888                         c->free = true;
1889                         *c->user = NULL; /* Same as above */
1890                         c->user = NULL;
1891                 }
1892                 c = c->next;
1893         }
1894
1895         /* Run a merge pass to combine all areas into one */
1896         target_merge_working_areas(target);
1897
1898         print_wa_layout(target);
1899 }
1900
1901 void target_free_all_working_areas(struct target *target)
1902 {
1903         target_free_all_working_areas_restore(target, 1);
1904 }
1905
1906 /* Find the largest number of bytes that can be allocated */
1907 uint32_t target_get_working_area_avail(struct target *target)
1908 {
1909         struct working_area *c = target->working_areas;
1910         uint32_t max_size = 0;
1911
1912         if (c == NULL)
1913                 return target->working_area_size;
1914
1915         while (c) {
1916                 if (c->free && max_size < c->size)
1917                         max_size = c->size;
1918
1919                 c = c->next;
1920         }
1921
1922         return max_size;
1923 }
1924
1925 int target_arch_state(struct target *target)
1926 {
1927         int retval;
1928         if (target == NULL) {
1929                 LOG_USER("No target has been configured");
1930                 return ERROR_OK;
1931         }
1932
1933         LOG_USER("target state: %s", target_state_name(target));
1934
1935         if (target->state != TARGET_HALTED)
1936                 return ERROR_OK;
1937
1938         retval = target->type->arch_state(target);
1939         return retval;
1940 }
1941
1942 static int target_get_gdb_fileio_info_default(struct target *target,
1943                 struct gdb_fileio_info *fileio_info)
1944 {
1945         /* If target does not support semi-hosting function, target
1946            has no need to provide .get_gdb_fileio_info callback.
1947            It just return ERROR_FAIL and gdb_server will return "Txx"
1948            as target halted every time.  */
1949         return ERROR_FAIL;
1950 }
1951
1952 static int target_gdb_fileio_end_default(struct target *target,
1953                 int retcode, int fileio_errno, bool ctrl_c)
1954 {
1955         return ERROR_OK;
1956 }
1957
1958 static int target_profiling_default(struct target *target, uint32_t *samples,
1959                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1960 {
1961         struct timeval timeout, now;
1962
1963         gettimeofday(&timeout, NULL);
1964         timeval_add_time(&timeout, seconds, 0);
1965
1966         LOG_INFO("Starting profiling. Halting and resuming the"
1967                         " target as often as we can...");
1968
1969         uint32_t sample_count = 0;
1970         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
1971         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
1972
1973         int retval = ERROR_OK;
1974         for (;;) {
1975                 target_poll(target);
1976                 if (target->state == TARGET_HALTED) {
1977                         uint32_t t = buf_get_u32(reg->value, 0, 32);
1978                         samples[sample_count++] = t;
1979                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
1980                         retval = target_resume(target, 1, 0, 0, 0);
1981                         target_poll(target);
1982                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
1983                 } else if (target->state == TARGET_RUNNING) {
1984                         /* We want to quickly sample the PC. */
1985                         retval = target_halt(target);
1986                 } else {
1987                         LOG_INFO("Target not halted or running");
1988                         retval = ERROR_OK;
1989                         break;
1990                 }
1991
1992                 if (retval != ERROR_OK)
1993                         break;
1994
1995                 gettimeofday(&now, NULL);
1996                 if ((sample_count >= max_num_samples) ||
1997                         ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))) {
1998                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
1999                         break;
2000                 }
2001         }
2002
2003         *num_samples = sample_count;
2004         return retval;
2005 }
2006
2007 /* Single aligned words are guaranteed to use 16 or 32 bit access
2008  * mode respectively, otherwise data is handled as quickly as
2009  * possible
2010  */
2011 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
2012 {
2013         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
2014                         (int)size, (unsigned)address);
2015
2016         if (!target_was_examined(target)) {
2017                 LOG_ERROR("Target not examined yet");
2018                 return ERROR_FAIL;
2019         }
2020
2021         if (size == 0)
2022                 return ERROR_OK;
2023
2024         if ((address + size - 1) < address) {
2025                 /* GDB can request this when e.g. PC is 0xfffffffc*/
2026                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
2027                                   (unsigned)address,
2028                                   (unsigned)size);
2029                 return ERROR_FAIL;
2030         }
2031
2032         return target->type->write_buffer(target, address, size, buffer);
2033 }
2034
2035 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t count, const uint8_t *buffer)
2036 {
2037         uint32_t size;
2038
2039         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2040          * will have something to do with the size we leave to it. */
2041         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2042                 if (address & size) {
2043                         int retval = target_write_memory(target, address, size, 1, buffer);
2044                         if (retval != ERROR_OK)
2045                                 return retval;
2046                         address += size;
2047                         count -= size;
2048                         buffer += size;
2049                 }
2050         }
2051
2052         /* Write the data with as large access size as possible. */
2053         for (; size > 0; size /= 2) {
2054                 uint32_t aligned = count - count % size;
2055                 if (aligned > 0) {
2056                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2057                         if (retval != ERROR_OK)
2058                                 return retval;
2059                         address += aligned;
2060                         count -= aligned;
2061                         buffer += aligned;
2062                 }
2063         }
2064
2065         return ERROR_OK;
2066 }
2067
2068 /* Single aligned words are guaranteed to use 16 or 32 bit access
2069  * mode respectively, otherwise data is handled as quickly as
2070  * possible
2071  */
2072 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
2073 {
2074         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
2075                           (int)size, (unsigned)address);
2076
2077         if (!target_was_examined(target)) {
2078                 LOG_ERROR("Target not examined yet");
2079                 return ERROR_FAIL;
2080         }
2081
2082         if (size == 0)
2083                 return ERROR_OK;
2084
2085         if ((address + size - 1) < address) {
2086                 /* GDB can request this when e.g. PC is 0xfffffffc*/
2087                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
2088                                   address,
2089                                   size);
2090                 return ERROR_FAIL;
2091         }
2092
2093         return target->type->read_buffer(target, address, size, buffer);
2094 }
2095
2096 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t count, uint8_t *buffer)
2097 {
2098         uint32_t size;
2099
2100         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2101          * will have something to do with the size we leave to it. */
2102         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2103                 if (address & size) {
2104                         int retval = target_read_memory(target, address, size, 1, buffer);
2105                         if (retval != ERROR_OK)
2106                                 return retval;
2107                         address += size;
2108                         count -= size;
2109                         buffer += size;
2110                 }
2111         }
2112
2113         /* Read the data with as large access size as possible. */
2114         for (; size > 0; size /= 2) {
2115                 uint32_t aligned = count - count % size;
2116                 if (aligned > 0) {
2117                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2118                         if (retval != ERROR_OK)
2119                                 return retval;
2120                         address += aligned;
2121                         count -= aligned;
2122                         buffer += aligned;
2123                 }
2124         }
2125
2126         return ERROR_OK;
2127 }
2128
2129 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
2130 {
2131         uint8_t *buffer;
2132         int retval;
2133         uint32_t i;
2134         uint32_t checksum = 0;
2135         if (!target_was_examined(target)) {
2136                 LOG_ERROR("Target not examined yet");
2137                 return ERROR_FAIL;
2138         }
2139
2140         retval = target->type->checksum_memory(target, address, size, &checksum);
2141         if (retval != ERROR_OK) {
2142                 buffer = malloc(size);
2143                 if (buffer == NULL) {
2144                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
2145                         return ERROR_COMMAND_SYNTAX_ERROR;
2146                 }
2147                 retval = target_read_buffer(target, address, size, buffer);
2148                 if (retval != ERROR_OK) {
2149                         free(buffer);
2150                         return retval;
2151                 }
2152
2153                 /* convert to target endianness */
2154                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2155                         uint32_t target_data;
2156                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2157                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2158                 }
2159
2160                 retval = image_calculate_checksum(buffer, size, &checksum);
2161                 free(buffer);
2162         }
2163
2164         *crc = checksum;
2165
2166         return retval;
2167 }
2168
2169 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
2170 {
2171         int retval;
2172         if (!target_was_examined(target)) {
2173                 LOG_ERROR("Target not examined yet");
2174                 return ERROR_FAIL;
2175         }
2176
2177         if (target->type->blank_check_memory == 0)
2178                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2179
2180         retval = target->type->blank_check_memory(target, address, size, blank);
2181
2182         return retval;
2183 }
2184
2185 int target_read_u64(struct target *target, uint64_t address, uint64_t *value)
2186 {
2187         uint8_t value_buf[8];
2188         if (!target_was_examined(target)) {
2189                 LOG_ERROR("Target not examined yet");
2190                 return ERROR_FAIL;
2191         }
2192
2193         int retval = target_read_memory(target, address, 8, 1, value_buf);
2194
2195         if (retval == ERROR_OK) {
2196                 *value = target_buffer_get_u64(target, value_buf);
2197                 LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
2198                                   address,
2199                                   *value);
2200         } else {
2201                 *value = 0x0;
2202                 LOG_DEBUG("address: 0x%" PRIx64 " failed",
2203                                   address);
2204         }
2205
2206         return retval;
2207 }
2208
2209 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
2210 {
2211         uint8_t value_buf[4];
2212         if (!target_was_examined(target)) {
2213                 LOG_ERROR("Target not examined yet");
2214                 return ERROR_FAIL;
2215         }
2216
2217         int retval = target_read_memory(target, address, 4, 1, value_buf);
2218
2219         if (retval == ERROR_OK) {
2220                 *value = target_buffer_get_u32(target, value_buf);
2221                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
2222                                   address,
2223                                   *value);
2224         } else {
2225                 *value = 0x0;
2226                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2227                                   address);
2228         }
2229
2230         return retval;
2231 }
2232
2233 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
2234 {
2235         uint8_t value_buf[2];
2236         if (!target_was_examined(target)) {
2237                 LOG_ERROR("Target not examined yet");
2238                 return ERROR_FAIL;
2239         }
2240
2241         int retval = target_read_memory(target, address, 2, 1, value_buf);
2242
2243         if (retval == ERROR_OK) {
2244                 *value = target_buffer_get_u16(target, value_buf);
2245                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
2246                                   address,
2247                                   *value);
2248         } else {
2249                 *value = 0x0;
2250                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2251                                   address);
2252         }
2253
2254         return retval;
2255 }
2256
2257 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
2258 {
2259         if (!target_was_examined(target)) {
2260                 LOG_ERROR("Target not examined yet");
2261                 return ERROR_FAIL;
2262         }
2263
2264         int retval = target_read_memory(target, address, 1, 1, value);
2265
2266         if (retval == ERROR_OK) {
2267                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2268                                   address,
2269                                   *value);
2270         } else {
2271                 *value = 0x0;
2272                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2273                                   address);
2274         }
2275
2276         return retval;
2277 }
2278
2279 int target_write_u64(struct target *target, uint64_t address, uint64_t value)
2280 {
2281         int retval;
2282         uint8_t value_buf[8];
2283         if (!target_was_examined(target)) {
2284                 LOG_ERROR("Target not examined yet");
2285                 return ERROR_FAIL;
2286         }
2287
2288         LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
2289                           address,
2290                           value);
2291
2292         target_buffer_set_u64(target, value_buf, value);
2293         retval = target_write_memory(target, address, 8, 1, value_buf);
2294         if (retval != ERROR_OK)
2295                 LOG_DEBUG("failed: %i", retval);
2296
2297         return retval;
2298 }
2299
2300 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
2301 {
2302         int retval;
2303         uint8_t value_buf[4];
2304         if (!target_was_examined(target)) {
2305                 LOG_ERROR("Target not examined yet");
2306                 return ERROR_FAIL;
2307         }
2308
2309         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
2310                           address,
2311                           value);
2312
2313         target_buffer_set_u32(target, value_buf, value);
2314         retval = target_write_memory(target, address, 4, 1, value_buf);
2315         if (retval != ERROR_OK)
2316                 LOG_DEBUG("failed: %i", retval);
2317
2318         return retval;
2319 }
2320
2321 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
2322 {
2323         int retval;
2324         uint8_t value_buf[2];
2325         if (!target_was_examined(target)) {
2326                 LOG_ERROR("Target not examined yet");
2327                 return ERROR_FAIL;
2328         }
2329
2330         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2331                           address,
2332                           value);
2333
2334         target_buffer_set_u16(target, value_buf, value);
2335         retval = target_write_memory(target, address, 2, 1, value_buf);
2336         if (retval != ERROR_OK)
2337                 LOG_DEBUG("failed: %i", retval);
2338
2339         return retval;
2340 }
2341
2342 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2343 {
2344         int retval;
2345         if (!target_was_examined(target)) {
2346                 LOG_ERROR("Target not examined yet");
2347                 return ERROR_FAIL;
2348         }
2349
2350         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2351                           address, value);
2352
2353         retval = target_write_memory(target, address, 1, 1, &value);
2354         if (retval != ERROR_OK)
2355                 LOG_DEBUG("failed: %i", retval);
2356
2357         return retval;
2358 }
2359
2360 static int find_target(struct command_context *cmd_ctx, const char *name)
2361 {
2362         struct target *target = get_target(name);
2363         if (target == NULL) {
2364                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2365                 return ERROR_FAIL;
2366         }
2367         if (!target->tap->enabled) {
2368                 LOG_USER("Target: TAP %s is disabled, "
2369                          "can't be the current target\n",
2370                          target->tap->dotted_name);
2371                 return ERROR_FAIL;
2372         }
2373
2374         cmd_ctx->current_target = target->target_number;
2375         return ERROR_OK;
2376 }
2377
2378
2379 COMMAND_HANDLER(handle_targets_command)
2380 {
2381         int retval = ERROR_OK;
2382         if (CMD_ARGC == 1) {
2383                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2384                 if (retval == ERROR_OK) {
2385                         /* we're done! */
2386                         return retval;
2387                 }
2388         }
2389
2390         struct target *target = all_targets;
2391         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2392         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2393         while (target) {
2394                 const char *state;
2395                 char marker = ' ';
2396
2397                 if (target->tap->enabled)
2398                         state = target_state_name(target);
2399                 else
2400                         state = "tap-disabled";
2401
2402                 if (CMD_CTX->current_target == target->target_number)
2403                         marker = '*';
2404
2405                 /* keep columns lined up to match the headers above */
2406                 command_print(CMD_CTX,
2407                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2408                                 target->target_number,
2409                                 marker,
2410                                 target_name(target),
2411                                 target_type_name(target),
2412                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2413                                         target->endianness)->name,
2414                                 target->tap->dotted_name,
2415                                 state);
2416                 target = target->next;
2417         }
2418
2419         return retval;
2420 }
2421
2422 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2423
2424 static int powerDropout;
2425 static int srstAsserted;
2426
2427 static int runPowerRestore;
2428 static int runPowerDropout;
2429 static int runSrstAsserted;
2430 static int runSrstDeasserted;
2431
2432 static int sense_handler(void)
2433 {
2434         static int prevSrstAsserted;
2435         static int prevPowerdropout;
2436
2437         int retval = jtag_power_dropout(&powerDropout);
2438         if (retval != ERROR_OK)
2439                 return retval;
2440
2441         int powerRestored;
2442         powerRestored = prevPowerdropout && !powerDropout;
2443         if (powerRestored)
2444                 runPowerRestore = 1;
2445
2446         long long current = timeval_ms();
2447         static long long lastPower;
2448         int waitMore = lastPower + 2000 > current;
2449         if (powerDropout && !waitMore) {
2450                 runPowerDropout = 1;
2451                 lastPower = current;
2452         }
2453
2454         retval = jtag_srst_asserted(&srstAsserted);
2455         if (retval != ERROR_OK)
2456                 return retval;
2457
2458         int srstDeasserted;
2459         srstDeasserted = prevSrstAsserted && !srstAsserted;
2460
2461         static long long lastSrst;
2462         waitMore = lastSrst + 2000 > current;
2463         if (srstDeasserted && !waitMore) {
2464                 runSrstDeasserted = 1;
2465                 lastSrst = current;
2466         }
2467
2468         if (!prevSrstAsserted && srstAsserted)
2469                 runSrstAsserted = 1;
2470
2471         prevSrstAsserted = srstAsserted;
2472         prevPowerdropout = powerDropout;
2473
2474         if (srstDeasserted || powerRestored) {
2475                 /* Other than logging the event we can't do anything here.
2476                  * Issuing a reset is a particularly bad idea as we might
2477                  * be inside a reset already.
2478                  */
2479         }
2480
2481         return ERROR_OK;
2482 }
2483
2484 /* process target state changes */
2485 static int handle_target(void *priv)
2486 {
2487         Jim_Interp *interp = (Jim_Interp *)priv;
2488         int retval = ERROR_OK;
2489
2490         if (!is_jtag_poll_safe()) {
2491                 /* polling is disabled currently */
2492                 return ERROR_OK;
2493         }
2494
2495         /* we do not want to recurse here... */
2496         static int recursive;
2497         if (!recursive) {
2498                 recursive = 1;
2499                 sense_handler();
2500                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2501                  * We need to avoid an infinite loop/recursion here and we do that by
2502                  * clearing the flags after running these events.
2503                  */
2504                 int did_something = 0;
2505                 if (runSrstAsserted) {
2506                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2507                         Jim_Eval(interp, "srst_asserted");
2508                         did_something = 1;
2509                 }
2510                 if (runSrstDeasserted) {
2511                         Jim_Eval(interp, "srst_deasserted");
2512                         did_something = 1;
2513                 }
2514                 if (runPowerDropout) {
2515                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2516                         Jim_Eval(interp, "power_dropout");
2517                         did_something = 1;
2518                 }
2519                 if (runPowerRestore) {
2520                         Jim_Eval(interp, "power_restore");
2521                         did_something = 1;
2522                 }
2523
2524                 if (did_something) {
2525                         /* clear detect flags */
2526                         sense_handler();
2527                 }
2528
2529                 /* clear action flags */
2530
2531                 runSrstAsserted = 0;
2532                 runSrstDeasserted = 0;
2533                 runPowerRestore = 0;
2534                 runPowerDropout = 0;
2535
2536                 recursive = 0;
2537         }
2538
2539         /* Poll targets for state changes unless that's globally disabled.
2540          * Skip targets that are currently disabled.
2541          */
2542         for (struct target *target = all_targets;
2543                         is_jtag_poll_safe() && target;
2544                         target = target->next) {
2545
2546                 if (!target_was_examined(target))
2547                         continue;
2548
2549                 if (!target->tap->enabled)
2550                         continue;
2551
2552                 if (target->backoff.times > target->backoff.count) {
2553                         /* do not poll this time as we failed previously */
2554                         target->backoff.count++;
2555                         continue;
2556                 }
2557                 target->backoff.count = 0;
2558
2559                 /* only poll target if we've got power and srst isn't asserted */
2560                 if (!powerDropout && !srstAsserted) {
2561                         /* polling may fail silently until the target has been examined */
2562                         retval = target_poll(target);
2563                         if (retval != ERROR_OK) {
2564                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2565                                 if (target->backoff.times * polling_interval < 5000) {
2566                                         target->backoff.times *= 2;
2567                                         target->backoff.times++;
2568                                 }
2569
2570                                 /* Tell GDB to halt the debugger. This allows the user to
2571                                  * run monitor commands to handle the situation.
2572                                  */
2573                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2574                         }
2575                         if (target->backoff.times > 0) {
2576                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2577                                 target_reset_examined(target);
2578                                 retval = target_examine_one(target);
2579                                 /* Target examination could have failed due to unstable connection,
2580                                  * but we set the examined flag anyway to repoll it later */
2581                                 if (retval != ERROR_OK) {
2582                                         target->examined = true;
2583                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2584                                                  target->backoff.times * polling_interval);
2585                                         return retval;
2586                                 }
2587                         }
2588
2589                         /* Since we succeeded, we reset backoff count */
2590                         target->backoff.times = 0;
2591                 }
2592         }
2593
2594         return retval;
2595 }
2596
2597 COMMAND_HANDLER(handle_reg_command)
2598 {
2599         struct target *target;
2600         struct reg *reg = NULL;
2601         unsigned count = 0;
2602         char *value;
2603
2604         LOG_DEBUG("-");
2605
2606         target = get_current_target(CMD_CTX);
2607
2608         /* list all available registers for the current target */
2609         if (CMD_ARGC == 0) {
2610                 struct reg_cache *cache = target->reg_cache;
2611
2612                 count = 0;
2613                 while (cache) {
2614                         unsigned i;
2615
2616                         command_print(CMD_CTX, "===== %s", cache->name);
2617
2618                         for (i = 0, reg = cache->reg_list;
2619                                         i < cache->num_regs;
2620                                         i++, reg++, count++) {
2621                                 /* only print cached values if they are valid */
2622                                 if (reg->valid) {
2623                                         value = buf_to_str(reg->value,
2624                                                         reg->size, 16);
2625                                         command_print(CMD_CTX,
2626                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2627                                                         count, reg->name,
2628                                                         reg->size, value,
2629                                                         reg->dirty
2630                                                                 ? " (dirty)"
2631                                                                 : "");
2632                                         free(value);
2633                                 } else {
2634                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2635                                                           count, reg->name,
2636                                                           reg->size) ;
2637                                 }
2638                         }
2639                         cache = cache->next;
2640                 }
2641
2642                 return ERROR_OK;
2643         }
2644
2645         /* access a single register by its ordinal number */
2646         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2647                 unsigned num;
2648                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2649
2650                 struct reg_cache *cache = target->reg_cache;
2651                 count = 0;
2652                 while (cache) {
2653                         unsigned i;
2654                         for (i = 0; i < cache->num_regs; i++) {
2655                                 if (count++ == num) {
2656                                         reg = &cache->reg_list[i];
2657                                         break;
2658                                 }
2659                         }
2660                         if (reg)
2661                                 break;
2662                         cache = cache->next;
2663                 }
2664
2665                 if (!reg) {
2666                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2667                                         "has only %i registers (0 - %i)", num, count, count - 1);
2668                         return ERROR_OK;
2669                 }
2670         } else {
2671                 /* access a single register by its name */
2672                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2673
2674                 if (!reg) {
2675                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2676                         return ERROR_OK;
2677                 }
2678         }
2679
2680         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2681
2682         /* display a register */
2683         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2684                         && (CMD_ARGV[1][0] <= '9')))) {
2685                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2686                         reg->valid = 0;
2687
2688                 if (reg->valid == 0)
2689                         reg->type->get(reg);
2690                 value = buf_to_str(reg->value, reg->size, 16);
2691                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2692                 free(value);
2693                 return ERROR_OK;
2694         }
2695
2696         /* set register value */
2697         if (CMD_ARGC == 2) {
2698                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2699                 if (buf == NULL)
2700                         return ERROR_FAIL;
2701                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2702
2703                 reg->type->set(reg, buf);
2704
2705                 value = buf_to_str(reg->value, reg->size, 16);
2706                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2707                 free(value);
2708
2709                 free(buf);
2710
2711                 return ERROR_OK;
2712         }
2713
2714         return ERROR_COMMAND_SYNTAX_ERROR;
2715 }
2716
2717 COMMAND_HANDLER(handle_poll_command)
2718 {
2719         int retval = ERROR_OK;
2720         struct target *target = get_current_target(CMD_CTX);
2721
2722         if (CMD_ARGC == 0) {
2723                 command_print(CMD_CTX, "background polling: %s",
2724                                 jtag_poll_get_enabled() ? "on" : "off");
2725                 command_print(CMD_CTX, "TAP: %s (%s)",
2726                                 target->tap->dotted_name,
2727                                 target->tap->enabled ? "enabled" : "disabled");
2728                 if (!target->tap->enabled)
2729                         return ERROR_OK;
2730                 retval = target_poll(target);
2731                 if (retval != ERROR_OK)
2732                         return retval;
2733                 retval = target_arch_state(target);
2734                 if (retval != ERROR_OK)
2735                         return retval;
2736         } else if (CMD_ARGC == 1) {
2737                 bool enable;
2738                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2739                 jtag_poll_set_enabled(enable);
2740         } else
2741                 return ERROR_COMMAND_SYNTAX_ERROR;
2742
2743         return retval;
2744 }
2745
2746 COMMAND_HANDLER(handle_wait_halt_command)
2747 {
2748         if (CMD_ARGC > 1)
2749                 return ERROR_COMMAND_SYNTAX_ERROR;
2750
2751         unsigned ms = DEFAULT_HALT_TIMEOUT;
2752         if (1 == CMD_ARGC) {
2753                 int retval = parse_uint(CMD_ARGV[0], &ms);
2754                 if (ERROR_OK != retval)
2755                         return ERROR_COMMAND_SYNTAX_ERROR;
2756         }
2757
2758         struct target *target = get_current_target(CMD_CTX);
2759         return target_wait_state(target, TARGET_HALTED, ms);
2760 }
2761
2762 /* wait for target state to change. The trick here is to have a low
2763  * latency for short waits and not to suck up all the CPU time
2764  * on longer waits.
2765  *
2766  * After 500ms, keep_alive() is invoked
2767  */
2768 int target_wait_state(struct target *target, enum target_state state, int ms)
2769 {
2770         int retval;
2771         long long then = 0, cur;
2772         int once = 1;
2773
2774         for (;;) {
2775                 retval = target_poll(target);
2776                 if (retval != ERROR_OK)
2777                         return retval;
2778                 if (target->state == state)
2779                         break;
2780                 cur = timeval_ms();
2781                 if (once) {
2782                         once = 0;
2783                         then = timeval_ms();
2784                         LOG_DEBUG("waiting for target %s...",
2785                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2786                 }
2787
2788                 if (cur-then > 500)
2789                         keep_alive();
2790
2791                 if ((cur-then) > ms) {
2792                         LOG_ERROR("timed out while waiting for target %s",
2793                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2794                         return ERROR_FAIL;
2795                 }
2796         }
2797
2798         return ERROR_OK;
2799 }
2800
2801 COMMAND_HANDLER(handle_halt_command)
2802 {
2803         LOG_DEBUG("-");
2804
2805         struct target *target = get_current_target(CMD_CTX);
2806         int retval = target_halt(target);
2807         if (ERROR_OK != retval)
2808                 return retval;
2809
2810         if (CMD_ARGC == 1) {
2811                 unsigned wait_local;
2812                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2813                 if (ERROR_OK != retval)
2814                         return ERROR_COMMAND_SYNTAX_ERROR;
2815                 if (!wait_local)
2816                         return ERROR_OK;
2817         }
2818
2819         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2820 }
2821
2822 COMMAND_HANDLER(handle_soft_reset_halt_command)
2823 {
2824         struct target *target = get_current_target(CMD_CTX);
2825
2826         LOG_USER("requesting target halt and executing a soft reset");
2827
2828         target_soft_reset_halt(target);
2829
2830         return ERROR_OK;
2831 }
2832
2833 COMMAND_HANDLER(handle_reset_command)
2834 {
2835         if (CMD_ARGC > 1)
2836                 return ERROR_COMMAND_SYNTAX_ERROR;
2837
2838         enum target_reset_mode reset_mode = RESET_RUN;
2839         if (CMD_ARGC == 1) {
2840                 const Jim_Nvp *n;
2841                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2842                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2843                         return ERROR_COMMAND_SYNTAX_ERROR;
2844                 reset_mode = n->value;
2845         }
2846
2847         /* reset *all* targets */
2848         return target_process_reset(CMD_CTX, reset_mode);
2849 }
2850
2851
2852 COMMAND_HANDLER(handle_resume_command)
2853 {
2854         int current = 1;
2855         if (CMD_ARGC > 1)
2856                 return ERROR_COMMAND_SYNTAX_ERROR;
2857
2858         struct target *target = get_current_target(CMD_CTX);
2859
2860         /* with no CMD_ARGV, resume from current pc, addr = 0,
2861          * with one arguments, addr = CMD_ARGV[0],
2862          * handle breakpoints, not debugging */
2863         uint32_t addr = 0;
2864         if (CMD_ARGC == 1) {
2865                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2866                 current = 0;
2867         }
2868
2869         return target_resume(target, current, addr, 1, 0);
2870 }
2871
2872 COMMAND_HANDLER(handle_step_command)
2873 {
2874         if (CMD_ARGC > 1)
2875                 return ERROR_COMMAND_SYNTAX_ERROR;
2876
2877         LOG_DEBUG("-");
2878
2879         /* with no CMD_ARGV, step from current pc, addr = 0,
2880          * with one argument addr = CMD_ARGV[0],
2881          * handle breakpoints, debugging */
2882         uint32_t addr = 0;
2883         int current_pc = 1;
2884         if (CMD_ARGC == 1) {
2885                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2886                 current_pc = 0;
2887         }
2888
2889         struct target *target = get_current_target(CMD_CTX);
2890
2891         return target->type->step(target, current_pc, addr, 1);
2892 }
2893
2894 static void handle_md_output(struct command_context *cmd_ctx,
2895                 struct target *target, uint32_t address, unsigned size,
2896                 unsigned count, const uint8_t *buffer)
2897 {
2898         const unsigned line_bytecnt = 32;
2899         unsigned line_modulo = line_bytecnt / size;
2900
2901         char output[line_bytecnt * 4 + 1];
2902         unsigned output_len = 0;
2903
2904         const char *value_fmt;
2905         switch (size) {
2906         case 4:
2907                 value_fmt = "%8.8x ";
2908                 break;
2909         case 2:
2910                 value_fmt = "%4.4x ";
2911                 break;
2912         case 1:
2913                 value_fmt = "%2.2x ";
2914                 break;
2915         default:
2916                 /* "can't happen", caller checked */
2917                 LOG_ERROR("invalid memory read size: %u", size);
2918                 return;
2919         }
2920
2921         for (unsigned i = 0; i < count; i++) {
2922                 if (i % line_modulo == 0) {
2923                         output_len += snprintf(output + output_len,
2924                                         sizeof(output) - output_len,
2925                                         "0x%8.8x: ",
2926                                         (unsigned)(address + (i*size)));
2927                 }
2928
2929                 uint32_t value = 0;
2930                 const uint8_t *value_ptr = buffer + i * size;
2931                 switch (size) {
2932                 case 4:
2933                         value = target_buffer_get_u32(target, value_ptr);
2934                         break;
2935                 case 2:
2936                         value = target_buffer_get_u16(target, value_ptr);
2937                         break;
2938                 case 1:
2939                         value = *value_ptr;
2940                 }
2941                 output_len += snprintf(output + output_len,
2942                                 sizeof(output) - output_len,
2943                                 value_fmt, value);
2944
2945                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2946                         command_print(cmd_ctx, "%s", output);
2947                         output_len = 0;
2948                 }
2949         }
2950 }
2951
2952 COMMAND_HANDLER(handle_md_command)
2953 {
2954         if (CMD_ARGC < 1)
2955                 return ERROR_COMMAND_SYNTAX_ERROR;
2956
2957         unsigned size = 0;
2958         switch (CMD_NAME[2]) {
2959         case 'w':
2960                 size = 4;
2961                 break;
2962         case 'h':
2963                 size = 2;
2964                 break;
2965         case 'b':
2966                 size = 1;
2967                 break;
2968         default:
2969                 return ERROR_COMMAND_SYNTAX_ERROR;
2970         }
2971
2972         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2973         int (*fn)(struct target *target,
2974                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2975         if (physical) {
2976                 CMD_ARGC--;
2977                 CMD_ARGV++;
2978                 fn = target_read_phys_memory;
2979         } else
2980                 fn = target_read_memory;
2981         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2982                 return ERROR_COMMAND_SYNTAX_ERROR;
2983
2984         uint32_t address;
2985         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2986
2987         unsigned count = 1;
2988         if (CMD_ARGC == 2)
2989                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2990
2991         uint8_t *buffer = calloc(count, size);
2992
2993         struct target *target = get_current_target(CMD_CTX);
2994         int retval = fn(target, address, size, count, buffer);
2995         if (ERROR_OK == retval)
2996                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2997
2998         free(buffer);
2999
3000         return retval;
3001 }
3002
3003 typedef int (*target_write_fn)(struct target *target,
3004                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3005
3006 static int target_fill_mem(struct target *target,
3007                 uint32_t address,
3008                 target_write_fn fn,
3009                 unsigned data_size,
3010                 /* value */
3011                 uint32_t b,
3012                 /* count */
3013                 unsigned c)
3014 {
3015         /* We have to write in reasonably large chunks to be able
3016          * to fill large memory areas with any sane speed */
3017         const unsigned chunk_size = 16384;
3018         uint8_t *target_buf = malloc(chunk_size * data_size);
3019         if (target_buf == NULL) {
3020                 LOG_ERROR("Out of memory");
3021                 return ERROR_FAIL;
3022         }
3023
3024         for (unsigned i = 0; i < chunk_size; i++) {
3025                 switch (data_size) {
3026                 case 4:
3027                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3028                         break;
3029                 case 2:
3030                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3031                         break;
3032                 case 1:
3033                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3034                         break;
3035                 default:
3036                         exit(-1);
3037                 }
3038         }
3039
3040         int retval = ERROR_OK;
3041
3042         for (unsigned x = 0; x < c; x += chunk_size) {
3043                 unsigned current;
3044                 current = c - x;
3045                 if (current > chunk_size)
3046                         current = chunk_size;
3047                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3048                 if (retval != ERROR_OK)
3049                         break;
3050                 /* avoid GDB timeouts */
3051                 keep_alive();
3052         }
3053         free(target_buf);
3054
3055         return retval;
3056 }
3057
3058
3059 COMMAND_HANDLER(handle_mw_command)
3060 {
3061         if (CMD_ARGC < 2)
3062                 return ERROR_COMMAND_SYNTAX_ERROR;
3063         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3064         target_write_fn fn;
3065         if (physical) {
3066                 CMD_ARGC--;
3067                 CMD_ARGV++;
3068                 fn = target_write_phys_memory;
3069         } else
3070                 fn = target_write_memory;
3071         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3072                 return ERROR_COMMAND_SYNTAX_ERROR;
3073
3074         uint32_t address;
3075         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
3076
3077         uint32_t value;
3078         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
3079
3080         unsigned count = 1;
3081         if (CMD_ARGC == 3)
3082                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3083
3084         struct target *target = get_current_target(CMD_CTX);
3085         unsigned wordsize;
3086         switch (CMD_NAME[2]) {
3087                 case 'w':
3088                         wordsize = 4;
3089                         break;
3090                 case 'h':
3091                         wordsize = 2;
3092                         break;
3093                 case 'b':
3094                         wordsize = 1;
3095                         break;
3096                 default:
3097                         return ERROR_COMMAND_SYNTAX_ERROR;
3098         }
3099
3100         return target_fill_mem(target, address, fn, wordsize, value, count);
3101 }
3102
3103 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3104                 uint32_t *min_address, uint32_t *max_address)
3105 {
3106         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3107                 return ERROR_COMMAND_SYNTAX_ERROR;
3108
3109         /* a base address isn't always necessary,
3110          * default to 0x0 (i.e. don't relocate) */
3111         if (CMD_ARGC >= 2) {
3112                 uint32_t addr;
3113                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
3114                 image->base_address = addr;
3115                 image->base_address_set = 1;
3116         } else
3117                 image->base_address_set = 0;
3118
3119         image->start_address_set = 0;
3120
3121         if (CMD_ARGC >= 4)
3122                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
3123         if (CMD_ARGC == 5) {
3124                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
3125                 /* use size (given) to find max (required) */
3126                 *max_address += *min_address;
3127         }
3128
3129         if (*min_address > *max_address)
3130                 return ERROR_COMMAND_SYNTAX_ERROR;
3131
3132         return ERROR_OK;
3133 }
3134
3135 COMMAND_HANDLER(handle_load_image_command)
3136 {
3137         uint8_t *buffer;
3138         size_t buf_cnt;
3139         uint32_t image_size;
3140         uint32_t min_address = 0;
3141         uint32_t max_address = 0xffffffff;
3142         int i;
3143         struct image image;
3144
3145         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3146                         &image, &min_address, &max_address);
3147         if (ERROR_OK != retval)
3148                 return retval;
3149
3150         struct target *target = get_current_target(CMD_CTX);
3151
3152         struct duration bench;
3153         duration_start(&bench);
3154
3155         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3156                 return ERROR_OK;
3157
3158         image_size = 0x0;
3159         retval = ERROR_OK;
3160         for (i = 0; i < image.num_sections; i++) {
3161                 buffer = malloc(image.sections[i].size);
3162                 if (buffer == NULL) {
3163                         command_print(CMD_CTX,
3164                                                   "error allocating buffer for section (%d bytes)",
3165                                                   (int)(image.sections[i].size));
3166                         break;
3167                 }
3168
3169                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3170                 if (retval != ERROR_OK) {
3171                         free(buffer);
3172                         break;
3173                 }
3174
3175                 uint32_t offset = 0;
3176                 uint32_t length = buf_cnt;
3177
3178                 /* DANGER!!! beware of unsigned comparision here!!! */
3179
3180                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3181                                 (image.sections[i].base_address < max_address)) {
3182
3183                         if (image.sections[i].base_address < min_address) {
3184                                 /* clip addresses below */
3185                                 offset += min_address-image.sections[i].base_address;
3186                                 length -= offset;
3187                         }
3188
3189                         if (image.sections[i].base_address + buf_cnt > max_address)
3190                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3191
3192                         retval = target_write_buffer(target,
3193                                         image.sections[i].base_address + offset, length, buffer + offset);
3194                         if (retval != ERROR_OK) {
3195                                 free(buffer);
3196                                 break;
3197                         }
3198                         image_size += length;
3199                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
3200                                         (unsigned int)length,
3201                                         image.sections[i].base_address + offset);
3202                 }
3203
3204                 free(buffer);
3205         }
3206
3207         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3208                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3209                                 "in %fs (%0.3f KiB/s)", image_size,
3210                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3211         }
3212
3213         image_close(&image);
3214
3215         return retval;
3216
3217 }
3218
3219 COMMAND_HANDLER(handle_dump_image_command)
3220 {
3221         struct fileio fileio;
3222         uint8_t *buffer;
3223         int retval, retvaltemp;
3224         uint32_t address, size;
3225         struct duration bench;
3226         struct target *target = get_current_target(CMD_CTX);
3227
3228         if (CMD_ARGC != 3)
3229                 return ERROR_COMMAND_SYNTAX_ERROR;
3230
3231         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
3232         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
3233
3234         uint32_t buf_size = (size > 4096) ? 4096 : size;
3235         buffer = malloc(buf_size);
3236         if (!buffer)
3237                 return ERROR_FAIL;
3238
3239         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3240         if (retval != ERROR_OK) {
3241                 free(buffer);
3242                 return retval;
3243         }
3244
3245         duration_start(&bench);
3246
3247         while (size > 0) {
3248                 size_t size_written;
3249                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3250                 retval = target_read_buffer(target, address, this_run_size, buffer);
3251                 if (retval != ERROR_OK)
3252                         break;
3253
3254                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
3255                 if (retval != ERROR_OK)
3256                         break;
3257
3258                 size -= this_run_size;
3259                 address += this_run_size;
3260         }
3261
3262         free(buffer);
3263
3264         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3265                 int filesize;
3266                 retval = fileio_size(&fileio, &filesize);
3267                 if (retval != ERROR_OK)
3268                         return retval;
3269                 command_print(CMD_CTX,
3270                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
3271                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3272         }
3273
3274         retvaltemp = fileio_close(&fileio);
3275         if (retvaltemp != ERROR_OK)
3276                 return retvaltemp;
3277
3278         return retval;
3279 }
3280
3281 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
3282 {
3283         uint8_t *buffer;
3284         size_t buf_cnt;
3285         uint32_t image_size;
3286         int i;
3287         int retval;
3288         uint32_t checksum = 0;
3289         uint32_t mem_checksum = 0;
3290
3291         struct image image;
3292
3293         struct target *target = get_current_target(CMD_CTX);
3294
3295         if (CMD_ARGC < 1)
3296                 return ERROR_COMMAND_SYNTAX_ERROR;
3297
3298         if (!target) {
3299                 LOG_ERROR("no target selected");
3300                 return ERROR_FAIL;
3301         }
3302
3303         struct duration bench;
3304         duration_start(&bench);
3305
3306         if (CMD_ARGC >= 2) {
3307                 uint32_t addr;
3308                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
3309                 image.base_address = addr;
3310                 image.base_address_set = 1;
3311         } else {
3312                 image.base_address_set = 0;
3313                 image.base_address = 0x0;
3314         }
3315
3316         image.start_address_set = 0;
3317
3318         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3319         if (retval != ERROR_OK)
3320                 return retval;
3321
3322         image_size = 0x0;
3323         int diffs = 0;
3324         retval = ERROR_OK;
3325         for (i = 0; i < image.num_sections; i++) {
3326                 buffer = malloc(image.sections[i].size);
3327                 if (buffer == NULL) {
3328                         command_print(CMD_CTX,
3329                                         "error allocating buffer for section (%d bytes)",
3330                                         (int)(image.sections[i].size));
3331                         break;
3332                 }
3333                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3334                 if (retval != ERROR_OK) {
3335                         free(buffer);
3336                         break;
3337                 }
3338
3339                 if (verify) {
3340                         /* calculate checksum of image */
3341                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3342                         if (retval != ERROR_OK) {
3343                                 free(buffer);
3344                                 break;
3345                         }
3346
3347                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3348                         if (retval != ERROR_OK) {
3349                                 free(buffer);
3350                                 break;
3351                         }
3352
3353                         if (checksum != mem_checksum) {
3354                                 /* failed crc checksum, fall back to a binary compare */
3355                                 uint8_t *data;
3356
3357                                 if (diffs == 0)
3358                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3359
3360                                 data = malloc(buf_cnt);
3361
3362                                 /* Can we use 32bit word accesses? */
3363                                 int size = 1;
3364                                 int count = buf_cnt;
3365                                 if ((count % 4) == 0) {
3366                                         size *= 4;
3367                                         count /= 4;
3368                                 }
3369                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3370                                 if (retval == ERROR_OK) {
3371                                         uint32_t t;
3372                                         for (t = 0; t < buf_cnt; t++) {
3373                                                 if (data[t] != buffer[t]) {
3374                                                         command_print(CMD_CTX,
3375                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3376                                                                                   diffs,
3377                                                                                   (unsigned)(t + image.sections[i].base_address),
3378                                                                                   data[t],
3379                                                                                   buffer[t]);
3380                                                         if (diffs++ >= 127) {
3381                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3382                                                                 free(data);
3383                                                                 free(buffer);
3384                                                                 goto done;
3385                                                         }
3386                                                 }
3387                                                 keep_alive();
3388                                         }
3389                                 }
3390                                 free(data);
3391                         }
3392                 } else {
3393                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3394                                                   image.sections[i].base_address,
3395                                                   buf_cnt);
3396                 }
3397
3398                 free(buffer);
3399                 image_size += buf_cnt;
3400         }
3401         if (diffs > 0)
3402                 command_print(CMD_CTX, "No more differences found.");
3403 done:
3404         if (diffs > 0)
3405                 retval = ERROR_FAIL;
3406         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3407                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3408                                 "in %fs (%0.3f KiB/s)", image_size,
3409                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3410         }
3411
3412         image_close(&image);
3413
3414         return retval;
3415 }
3416
3417 COMMAND_HANDLER(handle_verify_image_command)
3418 {
3419         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3420 }
3421
3422 COMMAND_HANDLER(handle_test_image_command)
3423 {
3424         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3425 }
3426
3427 static int handle_bp_command_list(struct command_context *cmd_ctx)
3428 {
3429         struct target *target = get_current_target(cmd_ctx);
3430         struct breakpoint *breakpoint = target->breakpoints;
3431         while (breakpoint) {
3432                 if (breakpoint->type == BKPT_SOFT) {
3433                         char *buf = buf_to_str(breakpoint->orig_instr,
3434                                         breakpoint->length, 16);
3435                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3436                                         breakpoint->address,
3437                                         breakpoint->length,
3438                                         breakpoint->set, buf);
3439                         free(buf);
3440                 } else {
3441                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3442                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3443                                                         breakpoint->asid,
3444                                                         breakpoint->length, breakpoint->set);
3445                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3446                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3447                                                         breakpoint->address,
3448                                                         breakpoint->length, breakpoint->set);
3449                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3450                                                         breakpoint->asid);
3451                         } else
3452                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3453                                                         breakpoint->address,
3454                                                         breakpoint->length, breakpoint->set);
3455                 }
3456
3457                 breakpoint = breakpoint->next;
3458         }
3459         return ERROR_OK;
3460 }
3461
3462 static int handle_bp_command_set(struct command_context *cmd_ctx,
3463                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3464 {
3465         struct target *target = get_current_target(cmd_ctx);
3466         int retval;
3467
3468         if (asid == 0) {
3469                 retval = breakpoint_add(target, addr, length, hw);
3470                 if (ERROR_OK == retval)
3471                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3472                 else {
3473                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3474                         return retval;
3475                 }
3476         } else if (addr == 0) {
3477                 if (target->type->add_context_breakpoint == NULL) {
3478                         LOG_WARNING("Context breakpoint not available");
3479                         return ERROR_OK;
3480                 }
3481                 retval = context_breakpoint_add(target, asid, length, hw);
3482                 if (ERROR_OK == retval)
3483                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3484                 else {
3485                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3486                         return retval;
3487                 }
3488         } else {
3489                 if (target->type->add_hybrid_breakpoint == NULL) {
3490                         LOG_WARNING("Hybrid breakpoint not available");
3491                         return ERROR_OK;
3492                 }
3493                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3494                 if (ERROR_OK == retval)
3495                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3496                 else {
3497                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3498                         return retval;
3499                 }
3500         }
3501         return ERROR_OK;
3502 }
3503
3504 COMMAND_HANDLER(handle_bp_command)
3505 {
3506         uint32_t addr;
3507         uint32_t asid;
3508         uint32_t length;
3509         int hw = BKPT_SOFT;
3510
3511         switch (CMD_ARGC) {
3512                 case 0:
3513                         return handle_bp_command_list(CMD_CTX);
3514
3515                 case 2:
3516                         asid = 0;
3517                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3518                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3519                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3520
3521                 case 3:
3522                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3523                                 hw = BKPT_HARD;
3524                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3525
3526                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3527
3528                                 asid = 0;
3529                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3530                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3531                                 hw = BKPT_HARD;
3532                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3533                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3534                                 addr = 0;
3535                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3536                         }
3537
3538                 case 4:
3539                         hw = BKPT_HARD;
3540                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3541                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3542                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3543                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3544
3545                 default:
3546                         return ERROR_COMMAND_SYNTAX_ERROR;
3547         }
3548 }
3549
3550 COMMAND_HANDLER(handle_rbp_command)
3551 {
3552         if (CMD_ARGC != 1)
3553                 return ERROR_COMMAND_SYNTAX_ERROR;
3554
3555         uint32_t addr;
3556         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3557
3558         struct target *target = get_current_target(CMD_CTX);
3559         breakpoint_remove(target, addr);
3560
3561         return ERROR_OK;
3562 }
3563
3564 COMMAND_HANDLER(handle_wp_command)
3565 {
3566         struct target *target = get_current_target(CMD_CTX);
3567
3568         if (CMD_ARGC == 0) {
3569                 struct watchpoint *watchpoint = target->watchpoints;
3570
3571                 while (watchpoint) {
3572                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3573                                         ", len: 0x%8.8" PRIx32
3574                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3575                                         ", mask: 0x%8.8" PRIx32,
3576                                         watchpoint->address,
3577                                         watchpoint->length,
3578                                         (int)watchpoint->rw,
3579                                         watchpoint->value,
3580                                         watchpoint->mask);
3581                         watchpoint = watchpoint->next;
3582                 }
3583                 return ERROR_OK;
3584         }
3585
3586         enum watchpoint_rw type = WPT_ACCESS;
3587         uint32_t addr = 0;
3588         uint32_t length = 0;
3589         uint32_t data_value = 0x0;
3590         uint32_t data_mask = 0xffffffff;
3591
3592         switch (CMD_ARGC) {
3593         case 5:
3594                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3595                 /* fall through */
3596         case 4:
3597                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3598                 /* fall through */
3599         case 3:
3600                 switch (CMD_ARGV[2][0]) {
3601                 case 'r':
3602                         type = WPT_READ;
3603                         break;
3604                 case 'w':
3605                         type = WPT_WRITE;
3606                         break;
3607                 case 'a':
3608                         type = WPT_ACCESS;
3609                         break;
3610                 default:
3611                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3612                         return ERROR_COMMAND_SYNTAX_ERROR;
3613                 }
3614                 /* fall through */
3615         case 2:
3616                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3617                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3618                 break;
3619
3620         default:
3621                 return ERROR_COMMAND_SYNTAX_ERROR;
3622         }
3623
3624         int retval = watchpoint_add(target, addr, length, type,
3625                         data_value, data_mask);
3626         if (ERROR_OK != retval)
3627                 LOG_ERROR("Failure setting watchpoints");
3628
3629         return retval;
3630 }
3631
3632 COMMAND_HANDLER(handle_rwp_command)
3633 {
3634         if (CMD_ARGC != 1)
3635                 return ERROR_COMMAND_SYNTAX_ERROR;
3636
3637         uint32_t addr;
3638         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3639
3640         struct target *target = get_current_target(CMD_CTX);
3641         watchpoint_remove(target, addr);
3642
3643         return ERROR_OK;
3644 }
3645
3646 /**
3647  * Translate a virtual address to a physical address.
3648  *
3649  * The low-level target implementation must have logged a detailed error
3650  * which is forwarded to telnet/GDB session.
3651  */
3652 COMMAND_HANDLER(handle_virt2phys_command)
3653 {
3654         if (CMD_ARGC != 1)
3655                 return ERROR_COMMAND_SYNTAX_ERROR;
3656
3657         uint32_t va;
3658         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3659         uint32_t pa;
3660
3661         struct target *target = get_current_target(CMD_CTX);
3662         int retval = target->type->virt2phys(target, va, &pa);
3663         if (retval == ERROR_OK)
3664                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3665
3666         return retval;
3667 }
3668
3669 static void writeData(FILE *f, const void *data, size_t len)
3670 {
3671         size_t written = fwrite(data, 1, len, f);
3672         if (written != len)
3673                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3674 }
3675
3676 static void writeLong(FILE *f, int l, struct target *target)
3677 {
3678         uint8_t val[4];
3679
3680         target_buffer_set_u32(target, val, l);
3681         writeData(f, val, 4);
3682 }
3683
3684 static void writeString(FILE *f, char *s)
3685 {
3686         writeData(f, s, strlen(s));
3687 }
3688
3689 typedef unsigned char UNIT[2];  /* unit of profiling */
3690
3691 /* Dump a gmon.out histogram file. */
3692 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3693                         uint32_t start_address, uint32_t end_address, struct target *target)
3694 {
3695         uint32_t i;
3696         FILE *f = fopen(filename, "w");
3697         if (f == NULL)
3698                 return;
3699         writeString(f, "gmon");
3700         writeLong(f, 0x00000001, target); /* Version */
3701         writeLong(f, 0, target); /* padding */
3702         writeLong(f, 0, target); /* padding */
3703         writeLong(f, 0, target); /* padding */
3704
3705         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3706         writeData(f, &zero, 1);
3707
3708         /* figure out bucket size */
3709         uint32_t min;
3710         uint32_t max;
3711         if (with_range) {
3712                 min = start_address;
3713                 max = end_address;
3714         } else {
3715                 min = samples[0];
3716                 max = samples[0];
3717                 for (i = 0; i < sampleNum; i++) {
3718                         if (min > samples[i])
3719                                 min = samples[i];
3720                         if (max < samples[i])
3721                                 max = samples[i];
3722                 }
3723
3724                 /* max should be (largest sample + 1)
3725                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3726                 max++;
3727         }
3728
3729         int addressSpace = max - min;
3730         assert(addressSpace >= 2);
3731
3732         /* FIXME: What is the reasonable number of buckets?
3733          * The profiling result will be more accurate if there are enough buckets. */
3734         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3735         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3736         if (numBuckets > maxBuckets)
3737                 numBuckets = maxBuckets;
3738         int *buckets = malloc(sizeof(int) * numBuckets);
3739         if (buckets == NULL) {
3740                 fclose(f);
3741                 return;
3742         }
3743         memset(buckets, 0, sizeof(int) * numBuckets);
3744         for (i = 0; i < sampleNum; i++) {
3745                 uint32_t address = samples[i];
3746
3747                 if ((address < min) || (max <= address))
3748                         continue;
3749
3750                 long long a = address - min;
3751                 long long b = numBuckets;
3752                 long long c = addressSpace;
3753                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3754                 buckets[index_t]++;
3755         }
3756
3757         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3758         writeLong(f, min, target);                      /* low_pc */
3759         writeLong(f, max, target);                      /* high_pc */
3760         writeLong(f, numBuckets, target);       /* # of buckets */
3761         writeLong(f, 100, target);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3762         writeString(f, "seconds");
3763         for (i = 0; i < (15-strlen("seconds")); i++)
3764                 writeData(f, &zero, 1);
3765         writeString(f, "s");
3766
3767         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3768
3769         char *data = malloc(2 * numBuckets);
3770         if (data != NULL) {
3771                 for (i = 0; i < numBuckets; i++) {
3772                         int val;
3773                         val = buckets[i];
3774                         if (val > 65535)
3775                                 val = 65535;
3776                         data[i * 2] = val&0xff;
3777                         data[i * 2 + 1] = (val >> 8) & 0xff;
3778                 }
3779                 free(buckets);
3780                 writeData(f, data, numBuckets * 2);
3781                 free(data);
3782         } else
3783                 free(buckets);
3784
3785         fclose(f);
3786 }
3787
3788 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3789  * which will be used as a random sampling of PC */
3790 COMMAND_HANDLER(handle_profile_command)
3791 {
3792         struct target *target = get_current_target(CMD_CTX);
3793
3794         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
3795                 return ERROR_COMMAND_SYNTAX_ERROR;
3796
3797         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
3798         uint32_t offset;
3799         uint32_t num_of_samples;
3800         int retval = ERROR_OK;
3801
3802         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
3803
3804         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
3805         if (samples == NULL) {
3806                 LOG_ERROR("No memory to store samples.");
3807                 return ERROR_FAIL;
3808         }
3809
3810         /**
3811          * Some cores let us sample the PC without the
3812          * annoying halt/resume step; for example, ARMv7 PCSR.
3813          * Provide a way to use that more efficient mechanism.
3814          */
3815         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
3816                                 &num_of_samples, offset);
3817         if (retval != ERROR_OK) {
3818                 free(samples);
3819                 return retval;
3820         }
3821
3822         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
3823
3824         retval = target_poll(target);
3825         if (retval != ERROR_OK) {
3826                 free(samples);
3827                 return retval;
3828         }
3829         if (target->state == TARGET_RUNNING) {
3830                 retval = target_halt(target);
3831                 if (retval != ERROR_OK) {
3832                         free(samples);
3833                         return retval;
3834                 }
3835         }
3836
3837         retval = target_poll(target);
3838         if (retval != ERROR_OK) {
3839                 free(samples);
3840                 return retval;
3841         }
3842
3843         uint32_t start_address = 0;
3844         uint32_t end_address = 0;
3845         bool with_range = false;
3846         if (CMD_ARGC == 4) {
3847                 with_range = true;
3848                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
3849                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
3850         }
3851
3852         write_gmon(samples, num_of_samples, CMD_ARGV[1],
3853                    with_range, start_address, end_address, target);
3854         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3855
3856         free(samples);
3857         return retval;
3858 }
3859
3860 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3861 {
3862         char *namebuf;
3863         Jim_Obj *nameObjPtr, *valObjPtr;
3864         int result;
3865
3866         namebuf = alloc_printf("%s(%d)", varname, idx);
3867         if (!namebuf)
3868                 return JIM_ERR;
3869
3870         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3871         valObjPtr = Jim_NewIntObj(interp, val);
3872         if (!nameObjPtr || !valObjPtr) {
3873                 free(namebuf);
3874                 return JIM_ERR;
3875         }
3876
3877         Jim_IncrRefCount(nameObjPtr);
3878         Jim_IncrRefCount(valObjPtr);
3879         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3880         Jim_DecrRefCount(interp, nameObjPtr);
3881         Jim_DecrRefCount(interp, valObjPtr);
3882         free(namebuf);
3883         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3884         return result;
3885 }
3886
3887 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3888 {
3889         struct command_context *context;
3890         struct target *target;
3891
3892         context = current_command_context(interp);
3893         assert(context != NULL);
3894
3895         target = get_current_target(context);
3896         if (target == NULL) {
3897                 LOG_ERROR("mem2array: no current target");
3898                 return JIM_ERR;
3899         }
3900
3901         return target_mem2array(interp, target, argc - 1, argv + 1);
3902 }
3903
3904 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3905 {
3906         long l;
3907         uint32_t width;
3908         int len;
3909         uint32_t addr;
3910         uint32_t count;
3911         uint32_t v;
3912         const char *varname;
3913         int  n, e, retval;
3914         uint32_t i;
3915
3916         /* argv[1] = name of array to receive the data
3917          * argv[2] = desired width
3918          * argv[3] = memory address
3919          * argv[4] = count of times to read
3920          */
3921         if (argc != 4) {
3922                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3923                 return JIM_ERR;
3924         }
3925         varname = Jim_GetString(argv[0], &len);
3926         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3927
3928         e = Jim_GetLong(interp, argv[1], &l);
3929         width = l;
3930         if (e != JIM_OK)
3931                 return e;
3932
3933         e = Jim_GetLong(interp, argv[2], &l);
3934         addr = l;
3935         if (e != JIM_OK)
3936                 return e;
3937         e = Jim_GetLong(interp, argv[3], &l);
3938         len = l;
3939         if (e != JIM_OK)
3940                 return e;
3941         switch (width) {
3942                 case 8:
3943                         width = 1;
3944                         break;
3945                 case 16:
3946                         width = 2;
3947                         break;
3948                 case 32:
3949                         width = 4;
3950                         break;
3951                 default:
3952                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3953                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3954                         return JIM_ERR;
3955         }
3956         if (len == 0) {
3957                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3958                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3959                 return JIM_ERR;
3960         }
3961         if ((addr + (len * width)) < addr) {
3962                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3963                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3964                 return JIM_ERR;
3965         }
3966         /* absurd transfer size? */
3967         if (len > 65536) {
3968                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3969                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3970                 return JIM_ERR;
3971         }
3972
3973         if ((width == 1) ||
3974                 ((width == 2) && ((addr & 1) == 0)) ||
3975                 ((width == 4) && ((addr & 3) == 0))) {
3976                 /* all is well */
3977         } else {
3978                 char buf[100];
3979                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3980                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3981                                 addr,
3982                                 width);
3983                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3984                 return JIM_ERR;
3985         }
3986
3987         /* Transfer loop */
3988
3989         /* index counter */
3990         n = 0;
3991
3992         size_t buffersize = 4096;
3993         uint8_t *buffer = malloc(buffersize);
3994         if (buffer == NULL)
3995                 return JIM_ERR;
3996
3997         /* assume ok */
3998         e = JIM_OK;
3999         while (len) {
4000                 /* Slurp... in buffer size chunks */
4001
4002                 count = len; /* in objects.. */
4003                 if (count > (buffersize / width))
4004                         count = (buffersize / width);
4005
4006                 retval = target_read_memory(target, addr, width, count, buffer);
4007                 if (retval != ERROR_OK) {
4008                         /* BOO !*/
4009                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
4010                                           (unsigned int)addr,
4011                                           (int)width,
4012                                           (int)count);
4013                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4014                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4015                         e = JIM_ERR;
4016                         break;
4017                 } else {
4018                         v = 0; /* shut up gcc */
4019                         for (i = 0; i < count ; i++, n++) {
4020                                 switch (width) {
4021                                         case 4:
4022                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4023                                                 break;
4024                                         case 2:
4025                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4026                                                 break;
4027                                         case 1:
4028                                                 v = buffer[i] & 0x0ff;
4029                                                 break;
4030                                 }
4031                                 new_int_array_element(interp, varname, n, v);
4032                         }
4033                         len -= count;
4034                         addr += count * width;
4035                 }
4036         }
4037
4038         free(buffer);
4039
4040         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4041
4042         return e;
4043 }
4044
4045 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4046 {
4047         char *namebuf;
4048         Jim_Obj *nameObjPtr, *valObjPtr;
4049         int result;
4050         long l;
4051
4052         namebuf = alloc_printf("%s(%d)", varname, idx);
4053         if (!namebuf)
4054                 return JIM_ERR;
4055
4056         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4057         if (!nameObjPtr) {
4058                 free(namebuf);
4059                 return JIM_ERR;
4060         }
4061
4062         Jim_IncrRefCount(nameObjPtr);
4063         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4064         Jim_DecrRefCount(interp, nameObjPtr);
4065         free(namebuf);
4066         if (valObjPtr == NULL)
4067                 return JIM_ERR;
4068
4069         result = Jim_GetLong(interp, valObjPtr, &l);
4070         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4071         *val = l;
4072         return result;
4073 }
4074
4075 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4076 {
4077         struct command_context *context;
4078         struct target *target;
4079
4080         context = current_command_context(interp);
4081         assert(context != NULL);
4082
4083         target = get_current_target(context);
4084         if (target == NULL) {
4085                 LOG_ERROR("array2mem: no current target");
4086                 return JIM_ERR;
4087         }
4088
4089         return target_array2mem(interp, target, argc-1, argv + 1);
4090 }
4091
4092 static int target_array2mem(Jim_Interp *interp, struct target *target,
4093                 int argc, Jim_Obj *const *argv)
4094 {
4095         long l;
4096         uint32_t width;
4097         int len;
4098         uint32_t addr;
4099         uint32_t count;
4100         uint32_t v;
4101         const char *varname;
4102         int  n, e, retval;
4103         uint32_t i;
4104
4105         /* argv[1] = name of array to get the data
4106          * argv[2] = desired width
4107          * argv[3] = memory address
4108          * argv[4] = count to write
4109          */
4110         if (argc != 4) {
4111                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
4112                 return JIM_ERR;
4113         }
4114         varname = Jim_GetString(argv[0], &len);
4115         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4116
4117         e = Jim_GetLong(interp, argv[1], &l);
4118         width = l;
4119         if (e != JIM_OK)
4120                 return e;
4121
4122         e = Jim_GetLong(interp, argv[2], &l);
4123         addr = l;
4124         if (e != JIM_OK)
4125                 return e;
4126         e = Jim_GetLong(interp, argv[3], &l);
4127         len = l;
4128         if (e != JIM_OK)
4129                 return e;
4130         switch (width) {
4131                 case 8:
4132                         width = 1;
4133                         break;
4134                 case 16:
4135                         width = 2;
4136                         break;
4137                 case 32:
4138                         width = 4;
4139                         break;
4140                 default:
4141                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4142                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4143                                         "Invalid width param, must be 8/16/32", NULL);
4144                         return JIM_ERR;
4145         }
4146         if (len == 0) {
4147                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4148                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4149                                 "array2mem: zero width read?", NULL);
4150                 return JIM_ERR;
4151         }
4152         if ((addr + (len * width)) < addr) {
4153                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4154                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4155                                 "array2mem: addr + len - wraps to zero?", NULL);
4156                 return JIM_ERR;
4157         }
4158         /* absurd transfer size? */
4159         if (len > 65536) {
4160                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4161                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4162                                 "array2mem: absurd > 64K item request", NULL);
4163                 return JIM_ERR;
4164         }
4165
4166         if ((width == 1) ||
4167                 ((width == 2) && ((addr & 1) == 0)) ||
4168                 ((width == 4) && ((addr & 3) == 0))) {
4169                 /* all is well */
4170         } else {
4171                 char buf[100];
4172                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4173                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
4174                                 (unsigned int)addr,
4175                                 (int)width);
4176                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
4177                 return JIM_ERR;
4178         }
4179
4180         /* Transfer loop */
4181
4182         /* index counter */
4183         n = 0;
4184         /* assume ok */
4185         e = JIM_OK;
4186
4187         size_t buffersize = 4096;
4188         uint8_t *buffer = malloc(buffersize);
4189         if (buffer == NULL)
4190                 return JIM_ERR;
4191
4192         while (len) {
4193                 /* Slurp... in buffer size chunks */
4194
4195                 count = len; /* in objects.. */
4196                 if (count > (buffersize / width))
4197                         count = (buffersize / width);
4198
4199                 v = 0; /* shut up gcc */
4200                 for (i = 0; i < count; i++, n++) {
4201                         get_int_array_element(interp, varname, n, &v);
4202                         switch (width) {
4203                         case 4:
4204                                 target_buffer_set_u32(target, &buffer[i * width], v);
4205                                 break;
4206                         case 2:
4207                                 target_buffer_set_u16(target, &buffer[i * width], v);
4208                                 break;
4209                         case 1:
4210                                 buffer[i] = v & 0x0ff;
4211                                 break;
4212                         }
4213                 }
4214                 len -= count;
4215
4216                 retval = target_write_memory(target, addr, width, count, buffer);
4217                 if (retval != ERROR_OK) {
4218                         /* BOO !*/
4219                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
4220                                           (unsigned int)addr,
4221                                           (int)width,
4222                                           (int)count);
4223                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4224                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4225                         e = JIM_ERR;
4226                         break;
4227                 }
4228                 addr += count * width;
4229         }
4230
4231         free(buffer);
4232
4233         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4234
4235         return e;
4236 }
4237
4238 /* FIX? should we propagate errors here rather than printing them
4239  * and continuing?
4240  */
4241 void target_handle_event(struct target *target, enum target_event e)
4242 {
4243         struct target_event_action *teap;
4244
4245         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4246                 if (teap->event == e) {
4247                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
4248                                            target->target_number,
4249                                            target_name(target),
4250                                            target_type_name(target),
4251                                            e,
4252                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4253                                            Jim_GetString(teap->body, NULL));
4254                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4255                                 Jim_MakeErrorMessage(teap->interp);
4256                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4257                         }
4258                 }
4259         }
4260 }
4261
4262 /**
4263  * Returns true only if the target has a handler for the specified event.
4264  */
4265 bool target_has_event_action(struct target *target, enum target_event event)
4266 {
4267         struct target_event_action *teap;
4268
4269         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4270                 if (teap->event == event)
4271                         return true;
4272         }
4273         return false;
4274 }
4275
4276 enum target_cfg_param {
4277         TCFG_TYPE,
4278         TCFG_EVENT,
4279         TCFG_WORK_AREA_VIRT,
4280         TCFG_WORK_AREA_PHYS,
4281         TCFG_WORK_AREA_SIZE,
4282         TCFG_WORK_AREA_BACKUP,
4283         TCFG_ENDIAN,
4284         TCFG_COREID,
4285         TCFG_CHAIN_POSITION,
4286         TCFG_DBGBASE,
4287         TCFG_RTOS,
4288 };
4289
4290 static Jim_Nvp nvp_config_opts[] = {
4291         { .name = "-type",             .value = TCFG_TYPE },
4292         { .name = "-event",            .value = TCFG_EVENT },
4293         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4294         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4295         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4296         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4297         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4298         { .name = "-coreid",           .value = TCFG_COREID },
4299         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4300         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4301         { .name = "-rtos",             .value = TCFG_RTOS },
4302         { .name = NULL, .value = -1 }
4303 };
4304
4305 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4306 {
4307         Jim_Nvp *n;
4308         Jim_Obj *o;
4309         jim_wide w;
4310         int e;
4311
4312         /* parse config or cget options ... */
4313         while (goi->argc > 0) {
4314                 Jim_SetEmptyResult(goi->interp);
4315                 /* Jim_GetOpt_Debug(goi); */
4316
4317                 if (target->type->target_jim_configure) {
4318                         /* target defines a configure function */
4319                         /* target gets first dibs on parameters */
4320                         e = (*(target->type->target_jim_configure))(target, goi);
4321                         if (e == JIM_OK) {
4322                                 /* more? */
4323                                 continue;
4324                         }
4325                         if (e == JIM_ERR) {
4326                                 /* An error */
4327                                 return e;
4328                         }
4329                         /* otherwise we 'continue' below */
4330                 }
4331                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4332                 if (e != JIM_OK) {
4333                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4334                         return e;
4335                 }
4336                 switch (n->value) {
4337                 case TCFG_TYPE:
4338                         /* not setable */
4339                         if (goi->isconfigure) {
4340                                 Jim_SetResultFormatted(goi->interp,
4341                                                 "not settable: %s", n->name);
4342                                 return JIM_ERR;
4343                         } else {
4344 no_params:
4345                                 if (goi->argc != 0) {
4346                                         Jim_WrongNumArgs(goi->interp,
4347                                                         goi->argc, goi->argv,
4348                                                         "NO PARAMS");
4349                                         return JIM_ERR;
4350                                 }
4351                         }
4352                         Jim_SetResultString(goi->interp,
4353                                         target_type_name(target), -1);
4354                         /* loop for more */
4355                         break;
4356                 case TCFG_EVENT:
4357                         if (goi->argc == 0) {
4358                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4359                                 return JIM_ERR;
4360                         }
4361
4362                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4363                         if (e != JIM_OK) {
4364                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4365                                 return e;
4366                         }
4367
4368                         if (goi->isconfigure) {
4369                                 if (goi->argc != 1) {
4370                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4371                                         return JIM_ERR;
4372                                 }
4373                         } else {
4374                                 if (goi->argc != 0) {
4375                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4376                                         return JIM_ERR;
4377                                 }
4378                         }
4379
4380                         {
4381                                 struct target_event_action *teap;
4382
4383                                 teap = target->event_action;
4384                                 /* replace existing? */
4385                                 while (teap) {
4386                                         if (teap->event == (enum target_event)n->value)
4387                                                 break;
4388                                         teap = teap->next;
4389                                 }
4390
4391                                 if (goi->isconfigure) {
4392                                         bool replace = true;
4393                                         if (teap == NULL) {
4394                                                 /* create new */
4395                                                 teap = calloc(1, sizeof(*teap));
4396                                                 replace = false;
4397                                         }
4398                                         teap->event = n->value;
4399                                         teap->interp = goi->interp;
4400                                         Jim_GetOpt_Obj(goi, &o);
4401                                         if (teap->body)
4402                                                 Jim_DecrRefCount(teap->interp, teap->body);
4403                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4404                                         /*
4405                                          * FIXME:
4406                                          *     Tcl/TK - "tk events" have a nice feature.
4407                                          *     See the "BIND" command.
4408                                          *    We should support that here.
4409                                          *     You can specify %X and %Y in the event code.
4410                                          *     The idea is: %T - target name.
4411                                          *     The idea is: %N - target number
4412                                          *     The idea is: %E - event name.
4413                                          */
4414                                         Jim_IncrRefCount(teap->body);
4415
4416                                         if (!replace) {
4417                                                 /* add to head of event list */
4418                                                 teap->next = target->event_action;
4419                                                 target->event_action = teap;
4420                                         }
4421                                         Jim_SetEmptyResult(goi->interp);
4422                                 } else {
4423                                         /* get */
4424                                         if (teap == NULL)
4425                                                 Jim_SetEmptyResult(goi->interp);
4426                                         else
4427                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4428                                 }
4429                         }
4430                         /* loop for more */
4431                         break;
4432
4433                 case TCFG_WORK_AREA_VIRT:
4434                         if (goi->isconfigure) {
4435                                 target_free_all_working_areas(target);
4436                                 e = Jim_GetOpt_Wide(goi, &w);
4437                                 if (e != JIM_OK)
4438                                         return e;
4439                                 target->working_area_virt = w;
4440                                 target->working_area_virt_spec = true;
4441                         } else {
4442                                 if (goi->argc != 0)
4443                                         goto no_params;
4444                         }
4445                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4446                         /* loop for more */
4447                         break;
4448
4449                 case TCFG_WORK_AREA_PHYS:
4450                         if (goi->isconfigure) {
4451                                 target_free_all_working_areas(target);
4452                                 e = Jim_GetOpt_Wide(goi, &w);
4453                                 if (e != JIM_OK)
4454                                         return e;
4455                                 target->working_area_phys = w;
4456                                 target->working_area_phys_spec = true;
4457                         } else {
4458                                 if (goi->argc != 0)
4459                                         goto no_params;
4460                         }
4461                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4462                         /* loop for more */
4463                         break;
4464
4465                 case TCFG_WORK_AREA_SIZE:
4466                         if (goi->isconfigure) {
4467                                 target_free_all_working_areas(target);
4468                                 e = Jim_GetOpt_Wide(goi, &w);
4469                                 if (e != JIM_OK)
4470                                         return e;
4471                                 target->working_area_size = w;
4472                         } else {
4473                                 if (goi->argc != 0)
4474                                         goto no_params;
4475                         }
4476                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4477                         /* loop for more */
4478                         break;
4479
4480                 case TCFG_WORK_AREA_BACKUP:
4481                         if (goi->isconfigure) {
4482                                 target_free_all_working_areas(target);
4483                                 e = Jim_GetOpt_Wide(goi, &w);
4484                                 if (e != JIM_OK)
4485                                         return e;
4486                                 /* make this exactly 1 or 0 */
4487                                 target->backup_working_area = (!!w);
4488                         } else {
4489                                 if (goi->argc != 0)
4490                                         goto no_params;
4491                         }
4492                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4493                         /* loop for more e*/
4494                         break;
4495
4496
4497                 case TCFG_ENDIAN:
4498                         if (goi->isconfigure) {
4499                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4500                                 if (e != JIM_OK) {
4501                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4502                                         return e;
4503                                 }
4504                                 target->endianness = n->value;
4505                         } else {
4506                                 if (goi->argc != 0)
4507                                         goto no_params;
4508                         }
4509                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4510                         if (n->name == NULL) {
4511                                 target->endianness = TARGET_LITTLE_ENDIAN;
4512                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4513                         }
4514                         Jim_SetResultString(goi->interp, n->name, -1);
4515                         /* loop for more */
4516                         break;
4517
4518                 case TCFG_COREID:
4519                         if (goi->isconfigure) {
4520                                 e = Jim_GetOpt_Wide(goi, &w);
4521                                 if (e != JIM_OK)
4522                                         return e;
4523                                 target->coreid = (int32_t)w;
4524                         } else {
4525                                 if (goi->argc != 0)
4526                                         goto no_params;
4527                         }
4528                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4529                         /* loop for more */
4530                         break;
4531
4532                 case TCFG_CHAIN_POSITION:
4533                         if (goi->isconfigure) {
4534                                 Jim_Obj *o_t;
4535                                 struct jtag_tap *tap;
4536                                 target_free_all_working_areas(target);
4537                                 e = Jim_GetOpt_Obj(goi, &o_t);
4538                                 if (e != JIM_OK)
4539                                         return e;
4540                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4541                                 if (tap == NULL)
4542                                         return JIM_ERR;
4543                                 /* make this exactly 1 or 0 */
4544                                 target->tap = tap;
4545                         } else {
4546                                 if (goi->argc != 0)
4547                                         goto no_params;
4548                         }
4549                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4550                         /* loop for more e*/
4551                         break;
4552                 case TCFG_DBGBASE:
4553                         if (goi->isconfigure) {
4554                                 e = Jim_GetOpt_Wide(goi, &w);
4555                                 if (e != JIM_OK)
4556                                         return e;
4557                                 target->dbgbase = (uint32_t)w;
4558                                 target->dbgbase_set = true;
4559                         } else {
4560                                 if (goi->argc != 0)
4561                                         goto no_params;
4562                         }
4563                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4564                         /* loop for more */
4565                         break;
4566
4567                 case TCFG_RTOS:
4568                         /* RTOS */
4569                         {
4570                                 int result = rtos_create(goi, target);
4571                                 if (result != JIM_OK)
4572                                         return result;
4573                         }
4574                         /* loop for more */
4575                         break;
4576                 }
4577         } /* while (goi->argc) */
4578
4579
4580                 /* done - we return */
4581         return JIM_OK;
4582 }
4583
4584 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4585 {
4586         Jim_GetOptInfo goi;
4587
4588         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4589         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4590         int need_args = 1 + goi.isconfigure;
4591         if (goi.argc < need_args) {
4592                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4593                         goi.isconfigure
4594                                 ? "missing: -option VALUE ..."
4595                                 : "missing: -option ...");
4596                 return JIM_ERR;
4597         }
4598         struct target *target = Jim_CmdPrivData(goi.interp);
4599         return target_configure(&goi, target);
4600 }
4601
4602 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4603 {
4604         const char *cmd_name = Jim_GetString(argv[0], NULL);
4605
4606         Jim_GetOptInfo goi;
4607         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4608
4609         if (goi.argc < 2 || goi.argc > 4) {
4610                 Jim_SetResultFormatted(goi.interp,
4611                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4612                 return JIM_ERR;
4613         }
4614
4615         target_write_fn fn;
4616         fn = target_write_memory;
4617
4618         int e;
4619         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4620                 /* consume it */
4621                 struct Jim_Obj *obj;
4622                 e = Jim_GetOpt_Obj(&goi, &obj);
4623                 if (e != JIM_OK)
4624                         return e;
4625
4626                 fn = target_write_phys_memory;
4627         }
4628
4629         jim_wide a;
4630         e = Jim_GetOpt_Wide(&goi, &a);
4631         if (e != JIM_OK)
4632                 return e;
4633
4634         jim_wide b;
4635         e = Jim_GetOpt_Wide(&goi, &b);
4636         if (e != JIM_OK)
4637                 return e;
4638
4639         jim_wide c = 1;
4640         if (goi.argc == 1) {
4641                 e = Jim_GetOpt_Wide(&goi, &c);
4642                 if (e != JIM_OK)
4643                         return e;
4644         }
4645
4646         /* all args must be consumed */
4647         if (goi.argc != 0)
4648                 return JIM_ERR;
4649
4650         struct target *target = Jim_CmdPrivData(goi.interp);
4651         unsigned data_size;
4652         if (strcasecmp(cmd_name, "mww") == 0)
4653                 data_size = 4;
4654         else if (strcasecmp(cmd_name, "mwh") == 0)
4655                 data_size = 2;
4656         else if (strcasecmp(cmd_name, "mwb") == 0)
4657                 data_size = 1;
4658         else {
4659                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4660                 return JIM_ERR;
4661         }
4662
4663         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4664 }
4665
4666 /**
4667 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4668 *
4669 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4670 *         mdh [phys] <address> [<count>] - for 16 bit reads
4671 *         mdb [phys] <address> [<count>] - for  8 bit reads
4672 *
4673 *  Count defaults to 1.
4674 *
4675 *  Calls target_read_memory or target_read_phys_memory depending on
4676 *  the presence of the "phys" argument
4677 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4678 *  to int representation in base16.
4679 *  Also outputs read data in a human readable form using command_print
4680 *
4681 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4682 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4683 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4684 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4685 *  on success, with [<count>] number of elements.
4686 *
4687 *  In case of little endian target:
4688 *      Example1: "mdw 0x00000000"  returns "10123456"
4689 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4690 *      Example3: "mdb 0x00000000" returns "56"
4691 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4692 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4693 **/
4694 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4695 {
4696         const char *cmd_name = Jim_GetString(argv[0], NULL);
4697
4698         Jim_GetOptInfo goi;
4699         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4700
4701         if ((goi.argc < 1) || (goi.argc > 3)) {
4702                 Jim_SetResultFormatted(goi.interp,
4703                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4704                 return JIM_ERR;
4705         }
4706
4707         int (*fn)(struct target *target,
4708                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4709         fn = target_read_memory;
4710
4711         int e;
4712         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4713                 /* consume it */
4714                 struct Jim_Obj *obj;
4715                 e = Jim_GetOpt_Obj(&goi, &obj);
4716                 if (e != JIM_OK)
4717                         return e;
4718
4719                 fn = target_read_phys_memory;
4720         }
4721
4722         /* Read address parameter */
4723         jim_wide addr;
4724         e = Jim_GetOpt_Wide(&goi, &addr);
4725         if (e != JIM_OK)
4726                 return JIM_ERR;
4727
4728         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4729         jim_wide count;
4730         if (goi.argc == 1) {
4731                 e = Jim_GetOpt_Wide(&goi, &count);
4732                 if (e != JIM_OK)
4733                         return JIM_ERR;
4734         } else
4735                 count = 1;
4736
4737         /* all args must be consumed */
4738         if (goi.argc != 0)
4739                 return JIM_ERR;
4740
4741         jim_wide dwidth = 1; /* shut up gcc */
4742         if (strcasecmp(cmd_name, "mdw") == 0)
4743                 dwidth = 4;
4744         else if (strcasecmp(cmd_name, "mdh") == 0)
4745                 dwidth = 2;
4746         else if (strcasecmp(cmd_name, "mdb") == 0)
4747                 dwidth = 1;
4748         else {
4749                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4750                 return JIM_ERR;
4751         }
4752
4753         /* convert count to "bytes" */
4754         int bytes = count * dwidth;
4755
4756         struct target *target = Jim_CmdPrivData(goi.interp);
4757         uint8_t  target_buf[32];
4758         jim_wide x, y, z;
4759         while (bytes > 0) {
4760                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4761
4762                 /* Try to read out next block */
4763                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4764
4765                 if (e != ERROR_OK) {
4766                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4767                         return JIM_ERR;
4768                 }
4769
4770                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4771                 switch (dwidth) {
4772                 case 4:
4773                         for (x = 0; x < 16 && x < y; x += 4) {
4774                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4775                                 command_print_sameline(NULL, "%08x ", (int)(z));
4776                         }
4777                         for (; (x < 16) ; x += 4)
4778                                 command_print_sameline(NULL, "         ");
4779                         break;
4780                 case 2:
4781                         for (x = 0; x < 16 && x < y; x += 2) {
4782                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4783                                 command_print_sameline(NULL, "%04x ", (int)(z));
4784                         }
4785                         for (; (x < 16) ; x += 2)
4786                                 command_print_sameline(NULL, "     ");
4787                         break;
4788                 case 1:
4789                 default:
4790                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4791                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4792                                 command_print_sameline(NULL, "%02x ", (int)(z));
4793                         }
4794                         for (; (x < 16) ; x += 1)
4795                                 command_print_sameline(NULL, "   ");
4796                         break;
4797                 }
4798                 /* ascii-ify the bytes */
4799                 for (x = 0 ; x < y ; x++) {
4800                         if ((target_buf[x] >= 0x20) &&
4801                                 (target_buf[x] <= 0x7e)) {
4802                                 /* good */
4803                         } else {
4804                                 /* smack it */
4805                                 target_buf[x] = '.';
4806                         }
4807                 }
4808                 /* space pad  */
4809                 while (x < 16) {
4810                         target_buf[x] = ' ';
4811                         x++;
4812                 }
4813                 /* terminate */
4814                 target_buf[16] = 0;
4815                 /* print - with a newline */
4816                 command_print_sameline(NULL, "%s\n", target_buf);
4817                 /* NEXT... */
4818                 bytes -= 16;
4819                 addr += 16;
4820         }
4821         return JIM_OK;
4822 }
4823
4824 static int jim_target_mem2array(Jim_Interp *interp,
4825                 int argc, Jim_Obj *const *argv)
4826 {
4827         struct target *target = Jim_CmdPrivData(interp);
4828         return target_mem2array(interp, target, argc - 1, argv + 1);
4829 }
4830
4831 static int jim_target_array2mem(Jim_Interp *interp,
4832                 int argc, Jim_Obj *const *argv)
4833 {
4834         struct target *target = Jim_CmdPrivData(interp);
4835         return target_array2mem(interp, target, argc - 1, argv + 1);
4836 }
4837
4838 static int jim_target_tap_disabled(Jim_Interp *interp)
4839 {
4840         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4841         return JIM_ERR;
4842 }
4843
4844 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4845 {
4846         if (argc != 1) {
4847                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4848                 return JIM_ERR;
4849         }
4850         struct target *target = Jim_CmdPrivData(interp);
4851         if (!target->tap->enabled)
4852                 return jim_target_tap_disabled(interp);
4853
4854         int e = target->type->examine(target);
4855         if (e != ERROR_OK)
4856                 return JIM_ERR;
4857         return JIM_OK;
4858 }
4859
4860 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4861 {
4862         if (argc != 1) {
4863                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4864                 return JIM_ERR;
4865         }
4866         struct target *target = Jim_CmdPrivData(interp);
4867
4868         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4869                 return JIM_ERR;
4870
4871         return JIM_OK;
4872 }
4873
4874 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4875 {
4876         if (argc != 1) {
4877                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4878                 return JIM_ERR;
4879         }
4880         struct target *target = Jim_CmdPrivData(interp);
4881         if (!target->tap->enabled)
4882                 return jim_target_tap_disabled(interp);
4883
4884         int e;
4885         if (!(target_was_examined(target)))
4886                 e = ERROR_TARGET_NOT_EXAMINED;
4887         else
4888                 e = target->type->poll(target);
4889         if (e != ERROR_OK)
4890                 return JIM_ERR;
4891         return JIM_OK;
4892 }
4893
4894 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4895 {
4896         Jim_GetOptInfo goi;
4897         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4898
4899         if (goi.argc != 2) {
4900                 Jim_WrongNumArgs(interp, 0, argv,
4901                                 "([tT]|[fF]|assert|deassert) BOOL");
4902                 return JIM_ERR;
4903         }
4904
4905         Jim_Nvp *n;
4906         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4907         if (e != JIM_OK) {
4908                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4909                 return e;
4910         }
4911         /* the halt or not param */
4912         jim_wide a;
4913         e = Jim_GetOpt_Wide(&goi, &a);
4914         if (e != JIM_OK)
4915                 return e;
4916
4917         struct target *target = Jim_CmdPrivData(goi.interp);
4918         if (!target->tap->enabled)
4919                 return jim_target_tap_disabled(interp);
4920         if (!(target_was_examined(target))) {
4921                 LOG_ERROR("Target not examined yet");
4922                 return ERROR_TARGET_NOT_EXAMINED;
4923         }
4924         if (!target->type->assert_reset || !target->type->deassert_reset) {
4925                 Jim_SetResultFormatted(interp,
4926                                 "No target-specific reset for %s",
4927                                 target_name(target));
4928                 return JIM_ERR;
4929         }
4930         /* determine if we should halt or not. */
4931         target->reset_halt = !!a;
4932         /* When this happens - all workareas are invalid. */
4933         target_free_all_working_areas_restore(target, 0);
4934
4935         /* do the assert */
4936         if (n->value == NVP_ASSERT)
4937                 e = target->type->assert_reset(target);
4938         else
4939                 e = target->type->deassert_reset(target);
4940         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4941 }
4942
4943 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4944 {
4945         if (argc != 1) {
4946                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4947                 return JIM_ERR;
4948         }
4949         struct target *target = Jim_CmdPrivData(interp);
4950         if (!target->tap->enabled)
4951                 return jim_target_tap_disabled(interp);
4952         int e = target->type->halt(target);
4953         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4954 }
4955
4956 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4957 {
4958         Jim_GetOptInfo goi;
4959         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4960
4961         /* params:  <name>  statename timeoutmsecs */
4962         if (goi.argc != 2) {
4963                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4964                 Jim_SetResultFormatted(goi.interp,
4965                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4966                 return JIM_ERR;
4967         }
4968
4969         Jim_Nvp *n;
4970         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4971         if (e != JIM_OK) {
4972                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4973                 return e;
4974         }
4975         jim_wide a;
4976         e = Jim_GetOpt_Wide(&goi, &a);
4977         if (e != JIM_OK)
4978                 return e;
4979         struct target *target = Jim_CmdPrivData(interp);
4980         if (!target->tap->enabled)
4981                 return jim_target_tap_disabled(interp);
4982
4983         e = target_wait_state(target, n->value, a);
4984         if (e != ERROR_OK) {
4985                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4986                 Jim_SetResultFormatted(goi.interp,
4987                                 "target: %s wait %s fails (%#s) %s",
4988                                 target_name(target), n->name,
4989                                 eObj, target_strerror_safe(e));
4990                 Jim_FreeNewObj(interp, eObj);
4991                 return JIM_ERR;
4992         }
4993         return JIM_OK;
4994 }
4995 /* List for human, Events defined for this target.
4996  * scripts/programs should use 'name cget -event NAME'
4997  */
4998 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4999 {
5000         struct command_context *cmd_ctx = current_command_context(interp);
5001         assert(cmd_ctx != NULL);
5002
5003         struct target *target = Jim_CmdPrivData(interp);
5004         struct target_event_action *teap = target->event_action;
5005         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5006                                    target->target_number,
5007                                    target_name(target));
5008         command_print(cmd_ctx, "%-25s | Body", "Event");
5009         command_print(cmd_ctx, "------------------------- | "
5010                         "----------------------------------------");
5011         while (teap) {
5012                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5013                 command_print(cmd_ctx, "%-25s | %s",
5014                                 opt->name, Jim_GetString(teap->body, NULL));
5015                 teap = teap->next;
5016         }
5017         command_print(cmd_ctx, "***END***");
5018         return JIM_OK;
5019 }
5020 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5021 {
5022         if (argc != 1) {
5023                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5024                 return JIM_ERR;
5025         }
5026         struct target *target = Jim_CmdPrivData(interp);
5027         Jim_SetResultString(interp, target_state_name(target), -1);
5028         return JIM_OK;
5029 }
5030 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5031 {
5032         Jim_GetOptInfo goi;
5033         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5034         if (goi.argc != 1) {
5035                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5036                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5037                 return JIM_ERR;
5038         }
5039         Jim_Nvp *n;
5040         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5041         if (e != JIM_OK) {
5042                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5043                 return e;
5044         }
5045         struct target *target = Jim_CmdPrivData(interp);
5046         target_handle_event(target, n->value);
5047         return JIM_OK;
5048 }
5049
5050 static const struct command_registration target_instance_command_handlers[] = {
5051         {
5052                 .name = "configure",
5053                 .mode = COMMAND_CONFIG,
5054                 .jim_handler = jim_target_configure,
5055                 .help  = "configure a new target for use",
5056                 .usage = "[target_attribute ...]",
5057         },
5058         {
5059                 .name = "cget",
5060                 .mode = COMMAND_ANY,
5061                 .jim_handler = jim_target_configure,
5062                 .help  = "returns the specified target attribute",
5063                 .usage = "target_attribute",
5064         },
5065         {
5066                 .name = "mww",
5067                 .mode = COMMAND_EXEC,
5068                 .jim_handler = jim_target_mw,
5069                 .help = "Write 32-bit word(s) to target memory",
5070                 .usage = "address data [count]",
5071         },
5072         {
5073                 .name = "mwh",
5074                 .mode = COMMAND_EXEC,
5075                 .jim_handler = jim_target_mw,
5076                 .help = "Write 16-bit half-word(s) to target memory",
5077                 .usage = "address data [count]",
5078         },
5079         {
5080                 .name = "mwb",
5081                 .mode = COMMAND_EXEC,
5082                 .jim_handler = jim_target_mw,
5083                 .help = "Write byte(s) to target memory",
5084                 .usage = "address data [count]",
5085         },
5086         {
5087                 .name = "mdw",
5088                 .mode = COMMAND_EXEC,
5089                 .jim_handler = jim_target_md,
5090                 .help = "Display target memory as 32-bit words",
5091                 .usage = "address [count]",
5092         },
5093         {
5094                 .name = "mdh",
5095                 .mode = COMMAND_EXEC,
5096                 .jim_handler = jim_target_md,
5097                 .help = "Display target memory as 16-bit half-words",
5098                 .usage = "address [count]",
5099         },
5100         {
5101                 .name = "mdb",
5102                 .mode = COMMAND_EXEC,
5103                 .jim_handler = jim_target_md,
5104                 .help = "Display target memory as 8-bit bytes",
5105                 .usage = "address [count]",
5106         },
5107         {
5108                 .name = "array2mem",
5109                 .mode = COMMAND_EXEC,
5110                 .jim_handler = jim_target_array2mem,
5111                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5112                         "to target memory",
5113                 .usage = "arrayname bitwidth address count",
5114         },
5115         {
5116                 .name = "mem2array",
5117                 .mode = COMMAND_EXEC,
5118                 .jim_handler = jim_target_mem2array,
5119                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5120                         "from target memory",
5121                 .usage = "arrayname bitwidth address count",
5122         },
5123         {
5124                 .name = "eventlist",
5125                 .mode = COMMAND_EXEC,
5126                 .jim_handler = jim_target_event_list,
5127                 .help = "displays a table of events defined for this target",
5128         },
5129         {
5130                 .name = "curstate",
5131                 .mode = COMMAND_EXEC,
5132                 .jim_handler = jim_target_current_state,
5133                 .help = "displays the current state of this target",
5134         },
5135         {
5136                 .name = "arp_examine",
5137                 .mode = COMMAND_EXEC,
5138                 .jim_handler = jim_target_examine,
5139                 .help = "used internally for reset processing",
5140         },
5141         {
5142                 .name = "arp_halt_gdb",
5143                 .mode = COMMAND_EXEC,
5144                 .jim_handler = jim_target_halt_gdb,
5145                 .help = "used internally for reset processing to halt GDB",
5146         },
5147         {
5148                 .name = "arp_poll",
5149                 .mode = COMMAND_EXEC,
5150                 .jim_handler = jim_target_poll,
5151                 .help = "used internally for reset processing",
5152         },
5153         {
5154                 .name = "arp_reset",
5155                 .mode = COMMAND_EXEC,
5156                 .jim_handler = jim_target_reset,
5157                 .help = "used internally for reset processing",
5158         },
5159         {
5160                 .name = "arp_halt",
5161                 .mode = COMMAND_EXEC,
5162                 .jim_handler = jim_target_halt,
5163                 .help = "used internally for reset processing",
5164         },
5165         {
5166                 .name = "arp_waitstate",
5167                 .mode = COMMAND_EXEC,
5168                 .jim_handler = jim_target_wait_state,
5169                 .help = "used internally for reset processing",
5170         },
5171         {
5172                 .name = "invoke-event",
5173                 .mode = COMMAND_EXEC,
5174                 .jim_handler = jim_target_invoke_event,
5175                 .help = "invoke handler for specified event",
5176                 .usage = "event_name",
5177         },
5178         COMMAND_REGISTRATION_DONE
5179 };
5180
5181 static int target_create(Jim_GetOptInfo *goi)
5182 {
5183         Jim_Obj *new_cmd;
5184         Jim_Cmd *cmd;
5185         const char *cp;
5186         char *cp2;
5187         int e;
5188         int x;
5189         struct target *target;
5190         struct command_context *cmd_ctx;
5191
5192         cmd_ctx = current_command_context(goi->interp);
5193         assert(cmd_ctx != NULL);
5194
5195         if (goi->argc < 3) {
5196                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5197                 return JIM_ERR;
5198         }
5199
5200         /* COMMAND */
5201         Jim_GetOpt_Obj(goi, &new_cmd);
5202         /* does this command exist? */
5203         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5204         if (cmd) {
5205                 cp = Jim_GetString(new_cmd, NULL);
5206                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5207                 return JIM_ERR;
5208         }
5209
5210         /* TYPE */
5211         e = Jim_GetOpt_String(goi, &cp2, NULL);
5212         if (e != JIM_OK)
5213                 return e;
5214         cp = cp2;
5215         struct transport *tr = get_current_transport();
5216         if (tr->override_target) {
5217                 e = tr->override_target(&cp);
5218                 if (e != ERROR_OK) {
5219                         LOG_ERROR("The selected transport doesn't support this target");
5220                         return JIM_ERR;
5221                 }
5222                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5223         }
5224         /* now does target type exist */
5225         for (x = 0 ; target_types[x] ; x++) {
5226                 if (0 == strcmp(cp, target_types[x]->name)) {
5227                         /* found */
5228                         break;
5229                 }
5230
5231                 /* check for deprecated name */
5232                 if (target_types[x]->deprecated_name) {
5233                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5234                                 /* found */
5235                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5236                                 break;
5237                         }
5238                 }
5239         }
5240         if (target_types[x] == NULL) {
5241                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5242                 for (x = 0 ; target_types[x] ; x++) {
5243                         if (target_types[x + 1]) {
5244                                 Jim_AppendStrings(goi->interp,
5245                                                                    Jim_GetResult(goi->interp),
5246                                                                    target_types[x]->name,
5247                                                                    ", ", NULL);
5248                         } else {
5249                                 Jim_AppendStrings(goi->interp,
5250                                                                    Jim_GetResult(goi->interp),
5251                                                                    " or ",
5252                                                                    target_types[x]->name, NULL);
5253                         }
5254                 }
5255                 return JIM_ERR;
5256         }
5257
5258         /* Create it */
5259         target = calloc(1, sizeof(struct target));
5260         /* set target number */
5261         target->target_number = new_target_number();
5262         cmd_ctx->current_target = target->target_number;
5263
5264         /* allocate memory for each unique target type */
5265         target->type = calloc(1, sizeof(struct target_type));
5266
5267         memcpy(target->type, target_types[x], sizeof(struct target_type));
5268
5269         /* will be set by "-endian" */
5270         target->endianness = TARGET_ENDIAN_UNKNOWN;
5271
5272         /* default to first core, override with -coreid */
5273         target->coreid = 0;
5274
5275         target->working_area        = 0x0;
5276         target->working_area_size   = 0x0;
5277         target->working_areas       = NULL;
5278         target->backup_working_area = 0;
5279
5280         target->state               = TARGET_UNKNOWN;
5281         target->debug_reason        = DBG_REASON_UNDEFINED;
5282         target->reg_cache           = NULL;
5283         target->breakpoints         = NULL;
5284         target->watchpoints         = NULL;
5285         target->next                = NULL;
5286         target->arch_info           = NULL;
5287
5288         target->display             = 1;
5289
5290         target->halt_issued                     = false;
5291
5292         /* initialize trace information */
5293         target->trace_info = malloc(sizeof(struct trace));
5294         target->trace_info->num_trace_points         = 0;
5295         target->trace_info->trace_points_size        = 0;
5296         target->trace_info->trace_points             = NULL;
5297         target->trace_info->trace_history_size       = 0;
5298         target->trace_info->trace_history            = NULL;
5299         target->trace_info->trace_history_pos        = 0;
5300         target->trace_info->trace_history_overflowed = 0;
5301
5302         target->dbgmsg          = NULL;
5303         target->dbg_msg_enabled = 0;
5304
5305         target->endianness = TARGET_ENDIAN_UNKNOWN;
5306
5307         target->rtos = NULL;
5308         target->rtos_auto_detect = false;
5309
5310         /* Do the rest as "configure" options */
5311         goi->isconfigure = 1;
5312         e = target_configure(goi, target);
5313
5314         if (target->tap == NULL) {
5315                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
5316                 e = JIM_ERR;
5317         }
5318
5319         if (e != JIM_OK) {
5320                 free(target->type);
5321                 free(target);
5322                 return e;
5323         }
5324
5325         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5326                 /* default endian to little if not specified */
5327                 target->endianness = TARGET_LITTLE_ENDIAN;
5328         }
5329
5330         cp = Jim_GetString(new_cmd, NULL);
5331         target->cmd_name = strdup(cp);
5332
5333         /* create the target specific commands */
5334         if (target->type->commands) {
5335                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5336                 if (ERROR_OK != e)
5337                         LOG_ERROR("unable to register '%s' commands", cp);
5338         }
5339         if (target->type->target_create)
5340                 (*(target->type->target_create))(target, goi->interp);
5341
5342         /* append to end of list */
5343         {
5344                 struct target **tpp;
5345                 tpp = &(all_targets);
5346                 while (*tpp)
5347                         tpp = &((*tpp)->next);
5348                 *tpp = target;
5349         }
5350
5351         /* now - create the new target name command */
5352         const struct command_registration target_subcommands[] = {
5353                 {
5354                         .chain = target_instance_command_handlers,
5355                 },
5356                 {
5357                         .chain = target->type->commands,
5358                 },
5359                 COMMAND_REGISTRATION_DONE
5360         };
5361         const struct command_registration target_commands[] = {
5362                 {
5363                         .name = cp,
5364                         .mode = COMMAND_ANY,
5365                         .help = "target command group",
5366                         .usage = "",
5367                         .chain = target_subcommands,
5368                 },
5369                 COMMAND_REGISTRATION_DONE
5370         };
5371         e = register_commands(cmd_ctx, NULL, target_commands);
5372         if (ERROR_OK != e)
5373                 return JIM_ERR;
5374
5375         struct command *c = command_find_in_context(cmd_ctx, cp);
5376         assert(c);
5377         command_set_handler_data(c, target);
5378
5379         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5380 }
5381
5382 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5383 {
5384         if (argc != 1) {
5385                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5386                 return JIM_ERR;
5387         }
5388         struct command_context *cmd_ctx = current_command_context(interp);
5389         assert(cmd_ctx != NULL);
5390
5391         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5392         return JIM_OK;
5393 }
5394
5395 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5396 {
5397         if (argc != 1) {
5398                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5399                 return JIM_ERR;
5400         }
5401         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5402         for (unsigned x = 0; NULL != target_types[x]; x++) {
5403                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5404                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5405         }
5406         return JIM_OK;
5407 }
5408
5409 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5410 {
5411         if (argc != 1) {
5412                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5413                 return JIM_ERR;
5414         }
5415         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5416         struct target *target = all_targets;
5417         while (target) {
5418                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5419                         Jim_NewStringObj(interp, target_name(target), -1));
5420                 target = target->next;
5421         }
5422         return JIM_OK;
5423 }
5424
5425 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5426 {
5427         int i;
5428         const char *targetname;
5429         int retval, len;
5430         struct target *target = (struct target *) NULL;
5431         struct target_list *head, *curr, *new;
5432         curr = (struct target_list *) NULL;
5433         head = (struct target_list *) NULL;
5434
5435         retval = 0;
5436         LOG_DEBUG("%d", argc);
5437         /* argv[1] = target to associate in smp
5438          * argv[2] = target to assoicate in smp
5439          * argv[3] ...
5440          */
5441
5442         for (i = 1; i < argc; i++) {
5443
5444                 targetname = Jim_GetString(argv[i], &len);
5445                 target = get_target(targetname);
5446                 LOG_DEBUG("%s ", targetname);
5447                 if (target) {
5448                         new = malloc(sizeof(struct target_list));
5449                         new->target = target;
5450                         new->next = (struct target_list *)NULL;
5451                         if (head == (struct target_list *)NULL) {
5452                                 head = new;
5453                                 curr = head;
5454                         } else {
5455                                 curr->next = new;
5456                                 curr = new;
5457                         }
5458                 }
5459         }
5460         /*  now parse the list of cpu and put the target in smp mode*/
5461         curr = head;
5462
5463         while (curr != (struct target_list *)NULL) {
5464                 target = curr->target;
5465                 target->smp = 1;
5466                 target->head = head;
5467                 curr = curr->next;
5468         }
5469
5470         if (target && target->rtos)
5471                 retval = rtos_smp_init(head->target);
5472
5473         return retval;
5474 }
5475
5476
5477 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5478 {
5479         Jim_GetOptInfo goi;
5480         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5481         if (goi.argc < 3) {
5482                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5483                         "<name> <target_type> [<target_options> ...]");
5484                 return JIM_ERR;
5485         }
5486         return target_create(&goi);
5487 }
5488
5489 static const struct command_registration target_subcommand_handlers[] = {
5490         {
5491                 .name = "init",
5492                 .mode = COMMAND_CONFIG,
5493                 .handler = handle_target_init_command,
5494                 .help = "initialize targets",
5495         },
5496         {
5497                 .name = "create",
5498                 /* REVISIT this should be COMMAND_CONFIG ... */
5499                 .mode = COMMAND_ANY,
5500                 .jim_handler = jim_target_create,
5501                 .usage = "name type '-chain-position' name [options ...]",
5502                 .help = "Creates and selects a new target",
5503         },
5504         {
5505                 .name = "current",
5506                 .mode = COMMAND_ANY,
5507                 .jim_handler = jim_target_current,
5508                 .help = "Returns the currently selected target",
5509         },
5510         {
5511                 .name = "types",
5512                 .mode = COMMAND_ANY,
5513                 .jim_handler = jim_target_types,
5514                 .help = "Returns the available target types as "
5515                                 "a list of strings",
5516         },
5517         {
5518                 .name = "names",
5519                 .mode = COMMAND_ANY,
5520                 .jim_handler = jim_target_names,
5521                 .help = "Returns the names of all targets as a list of strings",
5522         },
5523         {
5524                 .name = "smp",
5525                 .mode = COMMAND_ANY,
5526                 .jim_handler = jim_target_smp,
5527                 .usage = "targetname1 targetname2 ...",
5528                 .help = "gather several target in a smp list"
5529         },
5530
5531         COMMAND_REGISTRATION_DONE
5532 };
5533
5534 struct FastLoad {
5535         uint32_t address;
5536         uint8_t *data;
5537         int length;
5538
5539 };
5540
5541 static int fastload_num;
5542 static struct FastLoad *fastload;
5543
5544 static void free_fastload(void)
5545 {
5546         if (fastload != NULL) {
5547                 int i;
5548                 for (i = 0; i < fastload_num; i++) {
5549                         if (fastload[i].data)
5550                                 free(fastload[i].data);
5551                 }
5552                 free(fastload);
5553                 fastload = NULL;
5554         }
5555 }
5556
5557 COMMAND_HANDLER(handle_fast_load_image_command)
5558 {
5559         uint8_t *buffer;
5560         size_t buf_cnt;
5561         uint32_t image_size;
5562         uint32_t min_address = 0;
5563         uint32_t max_address = 0xffffffff;
5564         int i;
5565
5566         struct image image;
5567
5568         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5569                         &image, &min_address, &max_address);
5570         if (ERROR_OK != retval)
5571                 return retval;
5572
5573         struct duration bench;
5574         duration_start(&bench);
5575
5576         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5577         if (retval != ERROR_OK)
5578                 return retval;
5579
5580         image_size = 0x0;
5581         retval = ERROR_OK;
5582         fastload_num = image.num_sections;
5583         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5584         if (fastload == NULL) {
5585                 command_print(CMD_CTX, "out of memory");
5586                 image_close(&image);
5587                 return ERROR_FAIL;
5588         }
5589         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5590         for (i = 0; i < image.num_sections; i++) {
5591                 buffer = malloc(image.sections[i].size);
5592                 if (buffer == NULL) {
5593                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5594                                                   (int)(image.sections[i].size));
5595                         retval = ERROR_FAIL;
5596                         break;
5597                 }
5598
5599                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5600                 if (retval != ERROR_OK) {
5601                         free(buffer);
5602                         break;
5603                 }
5604
5605                 uint32_t offset = 0;
5606                 uint32_t length = buf_cnt;
5607
5608                 /* DANGER!!! beware of unsigned comparision here!!! */
5609
5610                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5611                                 (image.sections[i].base_address < max_address)) {
5612                         if (image.sections[i].base_address < min_address) {
5613                                 /* clip addresses below */
5614                                 offset += min_address-image.sections[i].base_address;
5615                                 length -= offset;
5616                         }
5617
5618                         if (image.sections[i].base_address + buf_cnt > max_address)
5619                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5620
5621                         fastload[i].address = image.sections[i].base_address + offset;
5622                         fastload[i].data = malloc(length);
5623                         if (fastload[i].data == NULL) {
5624                                 free(buffer);
5625                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5626                                                           length);
5627                                 retval = ERROR_FAIL;
5628                                 break;
5629                         }
5630                         memcpy(fastload[i].data, buffer + offset, length);
5631                         fastload[i].length = length;
5632
5633                         image_size += length;
5634                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5635                                                   (unsigned int)length,
5636                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5637                 }
5638
5639                 free(buffer);
5640         }
5641
5642         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5643                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5644                                 "in %fs (%0.3f KiB/s)", image_size,
5645                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5646
5647                 command_print(CMD_CTX,
5648                                 "WARNING: image has not been loaded to target!"
5649                                 "You can issue a 'fast_load' to finish loading.");
5650         }
5651
5652         image_close(&image);
5653
5654         if (retval != ERROR_OK)
5655                 free_fastload();
5656
5657         return retval;
5658 }
5659
5660 COMMAND_HANDLER(handle_fast_load_command)
5661 {
5662         if (CMD_ARGC > 0)
5663                 return ERROR_COMMAND_SYNTAX_ERROR;
5664         if (fastload == NULL) {
5665                 LOG_ERROR("No image in memory");
5666                 return ERROR_FAIL;
5667         }
5668         int i;
5669         int ms = timeval_ms();
5670         int size = 0;
5671         int retval = ERROR_OK;
5672         for (i = 0; i < fastload_num; i++) {
5673                 struct target *target = get_current_target(CMD_CTX);
5674                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5675                                           (unsigned int)(fastload[i].address),
5676                                           (unsigned int)(fastload[i].length));
5677                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5678                 if (retval != ERROR_OK)
5679                         break;
5680                 size += fastload[i].length;
5681         }
5682         if (retval == ERROR_OK) {
5683                 int after = timeval_ms();
5684                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5685         }
5686         return retval;
5687 }
5688
5689 static const struct command_registration target_command_handlers[] = {
5690         {
5691                 .name = "targets",
5692                 .handler = handle_targets_command,
5693                 .mode = COMMAND_ANY,
5694                 .help = "change current default target (one parameter) "
5695                         "or prints table of all targets (no parameters)",
5696                 .usage = "[target]",
5697         },
5698         {
5699                 .name = "target",
5700                 .mode = COMMAND_CONFIG,
5701                 .help = "configure target",
5702
5703                 .chain = target_subcommand_handlers,
5704         },
5705         COMMAND_REGISTRATION_DONE
5706 };
5707
5708 int target_register_commands(struct command_context *cmd_ctx)
5709 {
5710         return register_commands(cmd_ctx, NULL, target_command_handlers);
5711 }
5712
5713 static bool target_reset_nag = true;
5714
5715 bool get_target_reset_nag(void)
5716 {
5717         return target_reset_nag;
5718 }
5719
5720 COMMAND_HANDLER(handle_target_reset_nag)
5721 {
5722         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5723                         &target_reset_nag, "Nag after each reset about options to improve "
5724                         "performance");
5725 }
5726
5727 COMMAND_HANDLER(handle_ps_command)
5728 {
5729         struct target *target = get_current_target(CMD_CTX);
5730         char *display;
5731         if (target->state != TARGET_HALTED) {
5732                 LOG_INFO("target not halted !!");
5733                 return ERROR_OK;
5734         }
5735
5736         if ((target->rtos) && (target->rtos->type)
5737                         && (target->rtos->type->ps_command)) {
5738                 display = target->rtos->type->ps_command(target);
5739                 command_print(CMD_CTX, "%s", display);
5740                 free(display);
5741                 return ERROR_OK;
5742         } else {
5743                 LOG_INFO("failed");
5744                 return ERROR_TARGET_FAILURE;
5745         }
5746 }
5747
5748 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
5749 {
5750         if (text != NULL)
5751                 command_print_sameline(cmd_ctx, "%s", text);
5752         for (int i = 0; i < size; i++)
5753                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
5754         command_print(cmd_ctx, " ");
5755 }
5756
5757 COMMAND_HANDLER(handle_test_mem_access_command)
5758 {
5759         struct target *target = get_current_target(CMD_CTX);
5760         uint32_t test_size;
5761         int retval = ERROR_OK;
5762
5763         if (target->state != TARGET_HALTED) {
5764                 LOG_INFO("target not halted !!");
5765                 return ERROR_FAIL;
5766         }
5767
5768         if (CMD_ARGC != 1)
5769                 return ERROR_COMMAND_SYNTAX_ERROR;
5770
5771         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
5772
5773         /* Test reads */
5774         size_t num_bytes = test_size + 4;
5775
5776         struct working_area *wa = NULL;
5777         retval = target_alloc_working_area(target, num_bytes, &wa);
5778         if (retval != ERROR_OK) {
5779                 LOG_ERROR("Not enough working area");
5780                 return ERROR_FAIL;
5781         }
5782
5783         uint8_t *test_pattern = malloc(num_bytes);
5784
5785         for (size_t i = 0; i < num_bytes; i++)
5786                 test_pattern[i] = rand();
5787
5788         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
5789         if (retval != ERROR_OK) {
5790                 LOG_ERROR("Test pattern write failed");
5791                 goto out;
5792         }
5793
5794         for (int host_offset = 0; host_offset <= 1; host_offset++) {
5795                 for (int size = 1; size <= 4; size *= 2) {
5796                         for (int offset = 0; offset < 4; offset++) {
5797                                 uint32_t count = test_size / size;
5798                                 size_t host_bufsiz = (count + 2) * size + host_offset;
5799                                 uint8_t *read_ref = malloc(host_bufsiz);
5800                                 uint8_t *read_buf = malloc(host_bufsiz);
5801
5802                                 for (size_t i = 0; i < host_bufsiz; i++) {
5803                                         read_ref[i] = rand();
5804                                         read_buf[i] = read_ref[i];
5805                                 }
5806                                 command_print_sameline(CMD_CTX,
5807                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
5808                                                 size, offset, host_offset ? "un" : "");
5809
5810                                 struct duration bench;
5811                                 duration_start(&bench);
5812
5813                                 retval = target_read_memory(target, wa->address + offset, size, count,
5814                                                 read_buf + size + host_offset);
5815
5816                                 duration_measure(&bench);
5817
5818                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
5819                                         command_print(CMD_CTX, "Unsupported alignment");
5820                                         goto next;
5821                                 } else if (retval != ERROR_OK) {
5822                                         command_print(CMD_CTX, "Memory read failed");
5823                                         goto next;
5824                                 }
5825
5826                                 /* replay on host */
5827                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
5828
5829                                 /* check result */
5830                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
5831                                 if (result == 0) {
5832                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
5833                                                         duration_elapsed(&bench),
5834                                                         duration_kbps(&bench, count * size));
5835                                 } else {
5836                                         command_print(CMD_CTX, "Compare failed");
5837                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
5838                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
5839                                 }
5840 next:
5841                                 free(read_ref);
5842                                 free(read_buf);
5843                         }
5844                 }
5845         }
5846
5847 out:
5848         free(test_pattern);
5849
5850         if (wa != NULL)
5851                 target_free_working_area(target, wa);
5852
5853         /* Test writes */
5854         num_bytes = test_size + 4 + 4 + 4;
5855
5856         retval = target_alloc_working_area(target, num_bytes, &wa);
5857         if (retval != ERROR_OK) {
5858                 LOG_ERROR("Not enough working area");
5859                 return ERROR_FAIL;
5860         }
5861
5862         test_pattern = malloc(num_bytes);
5863
5864         for (size_t i = 0; i < num_bytes; i++)
5865                 test_pattern[i] = rand();
5866
5867         for (int host_offset = 0; host_offset <= 1; host_offset++) {
5868                 for (int size = 1; size <= 4; size *= 2) {
5869                         for (int offset = 0; offset < 4; offset++) {
5870                                 uint32_t count = test_size / size;
5871                                 size_t host_bufsiz = count * size + host_offset;
5872                                 uint8_t *read_ref = malloc(num_bytes);
5873                                 uint8_t *read_buf = malloc(num_bytes);
5874                                 uint8_t *write_buf = malloc(host_bufsiz);
5875
5876                                 for (size_t i = 0; i < host_bufsiz; i++)
5877                                         write_buf[i] = rand();
5878                                 command_print_sameline(CMD_CTX,
5879                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
5880                                                 size, offset, host_offset ? "un" : "");
5881
5882                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
5883                                 if (retval != ERROR_OK) {
5884                                         command_print(CMD_CTX, "Test pattern write failed");
5885                                         goto nextw;
5886                                 }
5887
5888                                 /* replay on host */
5889                                 memcpy(read_ref, test_pattern, num_bytes);
5890                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
5891
5892                                 struct duration bench;
5893                                 duration_start(&bench);
5894
5895                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
5896                                                 write_buf + host_offset);
5897
5898                                 duration_measure(&bench);
5899
5900                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
5901                                         command_print(CMD_CTX, "Unsupported alignment");
5902                                         goto nextw;
5903                                 } else if (retval != ERROR_OK) {
5904                                         command_print(CMD_CTX, "Memory write failed");
5905                                         goto nextw;
5906                                 }
5907
5908                                 /* read back */
5909                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
5910                                 if (retval != ERROR_OK) {
5911                                         command_print(CMD_CTX, "Test pattern write failed");
5912                                         goto nextw;
5913                                 }
5914
5915                                 /* check result */
5916                                 int result = memcmp(read_ref, read_buf, num_bytes);
5917                                 if (result == 0) {
5918                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
5919                                                         duration_elapsed(&bench),
5920                                                         duration_kbps(&bench, count * size));
5921                                 } else {
5922                                         command_print(CMD_CTX, "Compare failed");
5923                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
5924                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
5925                                 }
5926 nextw:
5927                                 free(read_ref);
5928                                 free(read_buf);
5929                         }
5930                 }
5931         }
5932
5933         free(test_pattern);
5934
5935         if (wa != NULL)
5936                 target_free_working_area(target, wa);
5937         return retval;
5938 }
5939
5940 static const struct command_registration target_exec_command_handlers[] = {
5941         {
5942                 .name = "fast_load_image",
5943                 .handler = handle_fast_load_image_command,
5944                 .mode = COMMAND_ANY,
5945                 .help = "Load image into server memory for later use by "
5946                         "fast_load; primarily for profiling",
5947                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5948                         "[min_address [max_length]]",
5949         },
5950         {
5951                 .name = "fast_load",
5952                 .handler = handle_fast_load_command,
5953                 .mode = COMMAND_EXEC,
5954                 .help = "loads active fast load image to current target "
5955                         "- mainly for profiling purposes",
5956                 .usage = "",
5957         },
5958         {
5959                 .name = "profile",
5960                 .handler = handle_profile_command,
5961                 .mode = COMMAND_EXEC,
5962                 .usage = "seconds filename [start end]",
5963                 .help = "profiling samples the CPU PC",
5964         },
5965         /** @todo don't register virt2phys() unless target supports it */
5966         {
5967                 .name = "virt2phys",
5968                 .handler = handle_virt2phys_command,
5969                 .mode = COMMAND_ANY,
5970                 .help = "translate a virtual address into a physical address",
5971                 .usage = "virtual_address",
5972         },
5973         {
5974                 .name = "reg",
5975                 .handler = handle_reg_command,
5976                 .mode = COMMAND_EXEC,
5977                 .help = "display (reread from target with \"force\") or set a register; "
5978                         "with no arguments, displays all registers and their values",
5979                 .usage = "[(register_number|register_name) [(value|'force')]]",
5980         },
5981         {
5982                 .name = "poll",
5983                 .handler = handle_poll_command,
5984                 .mode = COMMAND_EXEC,
5985                 .help = "poll target state; or reconfigure background polling",
5986                 .usage = "['on'|'off']",
5987         },
5988         {
5989                 .name = "wait_halt",
5990                 .handler = handle_wait_halt_command,
5991                 .mode = COMMAND_EXEC,
5992                 .help = "wait up to the specified number of milliseconds "
5993                         "(default 5000) for a previously requested halt",
5994                 .usage = "[milliseconds]",
5995         },
5996         {
5997                 .name = "halt",
5998                 .handler = handle_halt_command,
5999                 .mode = COMMAND_EXEC,
6000                 .help = "request target to halt, then wait up to the specified"
6001                         "number of milliseconds (default 5000) for it to complete",
6002                 .usage = "[milliseconds]",
6003         },
6004         {
6005                 .name = "resume",
6006                 .handler = handle_resume_command,
6007                 .mode = COMMAND_EXEC,
6008                 .help = "resume target execution from current PC or address",
6009                 .usage = "[address]",
6010         },
6011         {
6012                 .name = "reset",
6013                 .handler = handle_reset_command,
6014                 .mode = COMMAND_EXEC,
6015                 .usage = "[run|halt|init]",
6016                 .help = "Reset all targets into the specified mode."
6017                         "Default reset mode is run, if not given.",
6018         },
6019         {
6020                 .name = "soft_reset_halt",
6021                 .handler = handle_soft_reset_halt_command,
6022                 .mode = COMMAND_EXEC,
6023                 .usage = "",
6024                 .help = "halt the target and do a soft reset",
6025         },
6026         {
6027                 .name = "step",
6028                 .handler = handle_step_command,
6029                 .mode = COMMAND_EXEC,
6030                 .help = "step one instruction from current PC or address",
6031                 .usage = "[address]",
6032         },
6033         {
6034                 .name = "mdw",
6035                 .handler = handle_md_command,
6036                 .mode = COMMAND_EXEC,
6037                 .help = "display memory words",
6038                 .usage = "['phys'] address [count]",
6039         },
6040         {
6041                 .name = "mdh",
6042                 .handler = handle_md_command,
6043                 .mode = COMMAND_EXEC,
6044                 .help = "display memory half-words",
6045                 .usage = "['phys'] address [count]",
6046         },
6047         {
6048                 .name = "mdb",
6049                 .handler = handle_md_command,
6050                 .mode = COMMAND_EXEC,
6051                 .help = "display memory bytes",
6052                 .usage = "['phys'] address [count]",
6053         },
6054         {
6055                 .name = "mww",
6056                 .handler = handle_mw_command,
6057                 .mode = COMMAND_EXEC,
6058                 .help = "write memory word",
6059                 .usage = "['phys'] address value [count]",
6060         },
6061         {
6062                 .name = "mwh",
6063                 .handler = handle_mw_command,
6064                 .mode = COMMAND_EXEC,
6065                 .help = "write memory half-word",
6066                 .usage = "['phys'] address value [count]",
6067         },
6068         {
6069                 .name = "mwb",
6070                 .handler = handle_mw_command,
6071                 .mode = COMMAND_EXEC,
6072                 .help = "write memory byte",
6073                 .usage = "['phys'] address value [count]",
6074         },
6075         {
6076                 .name = "bp",
6077                 .handler = handle_bp_command,
6078                 .mode = COMMAND_EXEC,
6079                 .help = "list or set hardware or software breakpoint",
6080                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
6081         },
6082         {
6083                 .name = "rbp",
6084                 .handler = handle_rbp_command,
6085                 .mode = COMMAND_EXEC,
6086                 .help = "remove breakpoint",
6087                 .usage = "address",
6088         },
6089         {
6090                 .name = "wp",
6091                 .handler = handle_wp_command,
6092                 .mode = COMMAND_EXEC,
6093                 .help = "list (no params) or create watchpoints",
6094                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6095         },
6096         {
6097                 .name = "rwp",
6098                 .handler = handle_rwp_command,
6099                 .mode = COMMAND_EXEC,
6100                 .help = "remove watchpoint",
6101                 .usage = "address",
6102         },
6103         {
6104                 .name = "load_image",
6105                 .handler = handle_load_image_command,
6106                 .mode = COMMAND_EXEC,
6107                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6108                         "[min_address] [max_length]",
6109         },
6110         {
6111                 .name = "dump_image",
6112                 .handler = handle_dump_image_command,
6113                 .mode = COMMAND_EXEC,
6114                 .usage = "filename address size",
6115         },
6116         {
6117                 .name = "verify_image",
6118                 .handler = handle_verify_image_command,
6119                 .mode = COMMAND_EXEC,
6120                 .usage = "filename [offset [type]]",
6121         },
6122         {
6123                 .name = "test_image",
6124                 .handler = handle_test_image_command,
6125                 .mode = COMMAND_EXEC,
6126                 .usage = "filename [offset [type]]",
6127         },
6128         {
6129                 .name = "mem2array",
6130                 .mode = COMMAND_EXEC,
6131                 .jim_handler = jim_mem2array,
6132                 .help = "read 8/16/32 bit memory and return as a TCL array "
6133                         "for script processing",
6134                 .usage = "arrayname bitwidth address count",
6135         },
6136         {
6137                 .name = "array2mem",
6138                 .mode = COMMAND_EXEC,
6139                 .jim_handler = jim_array2mem,
6140                 .help = "convert a TCL array to memory locations "
6141                         "and write the 8/16/32 bit values",
6142                 .usage = "arrayname bitwidth address count",
6143         },
6144         {
6145                 .name = "reset_nag",
6146                 .handler = handle_target_reset_nag,
6147                 .mode = COMMAND_ANY,
6148                 .help = "Nag after each reset about options that could have been "
6149                                 "enabled to improve performance. ",
6150                 .usage = "['enable'|'disable']",
6151         },
6152         {
6153                 .name = "ps",
6154                 .handler = handle_ps_command,
6155                 .mode = COMMAND_EXEC,
6156                 .help = "list all tasks ",
6157                 .usage = " ",
6158         },
6159         {
6160                 .name = "test_mem_access",
6161                 .handler = handle_test_mem_access_command,
6162                 .mode = COMMAND_EXEC,
6163                 .help = "Test the target's memory access functions",
6164                 .usage = "size",
6165         },
6166
6167         COMMAND_REGISTRATION_DONE
6168 };
6169 static int target_register_user_commands(struct command_context *cmd_ctx)
6170 {
6171         int retval = ERROR_OK;
6172         retval = target_request_register_commands(cmd_ctx);
6173         if (retval != ERROR_OK)
6174                 return retval;
6175
6176         retval = trace_register_commands(cmd_ctx);
6177         if (retval != ERROR_OK)
6178                 return retval;
6179
6180
6181         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6182 }