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, see <http://www.gnu.org/licenses/>. *
  38  ***************************************************************************/
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include "config.h"
  42 #endif
  43
  44 #include <helper/time_support.h>
  45 #include <jtag/jtag.h>
  46 #include <flash/nor/core.h>
  47
  48 #include "target.h"
  49 #include "target_type.h"
  50 #include "target_request.h"
  51 #include "breakpoints.h"
  52 #include "register.h"
  53 #include "trace.h"
  54 #include "image.h"
  55 #include "rtos/rtos.h"
  56 #include "transport/transport.h"
  57
  58 /* default halt wait timeout (ms) */
  59 #define DEFAULT_HALT_TIMEOUT 5000
  60
  61 static int target_read_buffer_default(struct target *target, uint32_t address,
  62                 uint32_t count, uint8_t *buffer);
  63 static int target_write_buffer_default(struct target *target, uint32_t address,
  64                 uint32_t count, const uint8_t *buffer);
  65 static int target_array2mem(Jim_Interp *interp, struct target *target,
  66                 int argc, Jim_Obj * const *argv);
  67 static int target_mem2array(Jim_Interp *interp, struct target *target,
  68                 int argc, Jim_Obj * const *argv);
  69 static int target_register_user_commands(struct command_context *cmd_ctx);
  70 static int target_get_gdb_fileio_info_default(struct target *target,
  71                 struct gdb_fileio_info *fileio_info);
  72 static int target_gdb_fileio_end_default(struct target *target, int retcode,
  73                 int fileio_errno, bool ctrl_c);
  74 static int target_profiling_default(struct target *target, uint32_t *samples,
  75                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds);
  76
  77 /* targets */
  78 extern struct target_type arm7tdmi_target;
  79 extern struct target_type arm720t_target;
  80 extern struct target_type arm9tdmi_target;
  81 extern struct target_type arm920t_target;
  82 extern struct target_type arm966e_target;
  83 extern struct target_type arm946e_target;
  84 extern struct target_type arm926ejs_target;
  85 extern struct target_type fa526_target;
  86 extern struct target_type feroceon_target;
  87 extern struct target_type dragonite_target;
  88 extern struct target_type xscale_target;
  89 extern struct target_type cortexm_target;
  90 extern struct target_type cortexa_target;
  91 extern struct target_type cortexr4_target;
  92 extern struct target_type arm11_target;
  93 extern struct target_type ls1_sap_target;
  94 extern struct target_type mips_m4k_target;
  95 extern struct target_type avr_target;
  96 extern struct target_type dsp563xx_target;
  97 extern struct target_type dsp5680xx_target;
  98 extern struct target_type testee_target;
  99 extern struct target_type avr32_ap7k_target;
 100 extern struct target_type hla_target;
 101 extern struct target_type nds32_v2_target;
 102 extern struct target_type nds32_v3_target;
 103 extern struct target_type nds32_v3m_target;
 104 extern struct target_type or1k_target;
 105 extern struct target_type quark_x10xx_target;
 106 extern struct target_type quark_d20xx_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         &ls1_sap_target,
 125         &mips_m4k_target,
 126         &avr_target,
 127         &dsp563xx_target,
 128         &dsp5680xx_target,
 129         &testee_target,
 130         &avr32_ap7k_target,
 131         &hla_target,
 132         &nds32_v2_target,
 133         &nds32_v3_target,
 134         &nds32_v3m_target,
 135         &or1k_target,
 136         &quark_x10xx_target,
 137         &quark_d20xx_target,
 138         NULL,
 139 };
 140
 141 struct target *all_targets;
 142 static struct target_event_callback *target_event_callbacks;
 143 static struct target_timer_callback *target_timer_callbacks;
 144 LIST_HEAD(target_reset_callback_list);
 145 LIST_HEAD(target_trace_callback_list);
 146 static const int polling_interval = 100;
 147
 148 static const Jim_Nvp nvp_assert[] = {
 149         { .name = "assert", NVP_ASSERT },
 150         { .name = "deassert", NVP_DEASSERT },
 151         { .name = "T", NVP_ASSERT },
 152         { .name = "F", NVP_DEASSERT },
 153         { .name = "t", NVP_ASSERT },
 154         { .name = "f", NVP_DEASSERT },
 155         { .name = NULL, .value = -1 }
 156 };
 157
 158 static const Jim_Nvp nvp_error_target[] = {
 159         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 160         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 161         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 162         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 163         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 164         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 165         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 166         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 167         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 168         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 169         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 170         { .value = -1, .name = NULL }
 171 };
 172
 173 static const char *target_strerror_safe(int err)
 174 {
 175         const Jim_Nvp *n;
 176
 177         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 178         if (n->name == NULL)
 179                 return "unknown";
 180         else
 181                 return n->name;
 182 }
 183
 184 static const Jim_Nvp nvp_target_event[] = {
 185
 186         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 187         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 188         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 189         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 190         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 191
 192         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 193         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 194
 195         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 196         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 197         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 198         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 199         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 200         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 201         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 202         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 203         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 204         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 205         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 206         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 207
 208         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 209         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 210
 211         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 212         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 213
 214         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 215         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 216
 217         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 218         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 219
 220         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 221         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 222
 223         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 224
 225         { .name = NULL, .value = -1 }
 226 };
 227
 228 static const Jim_Nvp nvp_target_state[] = {
 229         { .name = "unknown", .value = TARGET_UNKNOWN },
 230         { .name = "running", .value = TARGET_RUNNING },
 231         { .name = "halted",  .value = TARGET_HALTED },
 232         { .name = "reset",   .value = TARGET_RESET },
 233         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 234         { .name = NULL, .value = -1 },
 235 };
 236
 237 static const Jim_Nvp nvp_target_debug_reason[] = {
 238         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 239         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 240         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 241         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 242         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 243         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 244         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 245         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 246         { .name = NULL, .value = -1 },
 247 };
 248
 249 static const Jim_Nvp nvp_target_endian[] = {
 250         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 251         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 252         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 253         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 254         { .name = NULL,     .value = -1 },
 255 };
 256
 257 static const Jim_Nvp nvp_reset_modes[] = {
 258         { .name = "unknown", .value = RESET_UNKNOWN },
 259         { .name = "run"    , .value = RESET_RUN },
 260         { .name = "halt"   , .value = RESET_HALT },
 261         { .name = "init"   , .value = RESET_INIT },
 262         { .name = NULL     , .value = -1 },
 263 };
 264
 265 const char *debug_reason_name(struct target *t)
 266 {
 267         const char *cp;
 268
 269         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 270                         t->debug_reason)->name;
 271         if (!cp) {
 272                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 273                 cp = "(*BUG*unknown*BUG*)";
 274         }
 275         return cp;
 276 }
 277
 278 const char *target_state_name(struct target *t)
 279 {
 280         const char *cp;
 281         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 282         if (!cp) {
 283                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 284                 cp = "(*BUG*unknown*BUG*)";
 285         }
 286         return cp;
 287 }
 288
 289 const char *target_event_name(enum target_event event)
 290 {
 291         const char *cp;
 292         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 293         if (!cp) {
 294                 LOG_ERROR("Invalid target event: %d", (int)(event));
 295                 cp = "(*BUG*unknown*BUG*)";
 296         }
 297         return cp;
 298 }
 299
 300 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 301 {
 302         const char *cp;
 303         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 304         if (!cp) {
 305                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 306                 cp = "(*BUG*unknown*BUG*)";
 307         }
 308         return cp;
 309 }
 310
 311 /* determine the number of the new target */
 312 static int new_target_number(void)
 313 {
 314         struct target *t;
 315         int x;
 316
 317         /* number is 0 based */
 318         x = -1;
 319         t = all_targets;
 320         while (t) {
 321                 if (x < t->target_number)
 322                         x = t->target_number;
 323                 t = t->next;
 324         }
 325         return x + 1;
 326 }
 327
 328 /* read a uint64_t from a buffer in target memory endianness */
 329 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 330 {
 331         if (target->endianness == TARGET_LITTLE_ENDIAN)
 332                 return le_to_h_u64(buffer);
 333         else
 334                 return be_to_h_u64(buffer);
 335 }
 336
 337 /* read a uint32_t from a buffer in target memory endianness */
 338 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 339 {
 340         if (target->endianness == TARGET_LITTLE_ENDIAN)
 341                 return le_to_h_u32(buffer);
 342         else
 343                 return be_to_h_u32(buffer);
 344 }
 345
 346 /* read a uint24_t from a buffer in target memory endianness */
 347 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 348 {
 349         if (target->endianness == TARGET_LITTLE_ENDIAN)
 350                 return le_to_h_u24(buffer);
 351         else
 352                 return be_to_h_u24(buffer);
 353 }
 354
 355 /* read a uint16_t from a buffer in target memory endianness */
 356 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 357 {
 358         if (target->endianness == TARGET_LITTLE_ENDIAN)
 359                 return le_to_h_u16(buffer);
 360         else
 361                 return be_to_h_u16(buffer);
 362 }
 363
 364 /* read a uint8_t from a buffer in target memory endianness */
 365 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 366 {
 367         return *buffer & 0x0ff;
 368 }
 369
 370 /* write a uint64_t to a buffer in target memory endianness */
 371 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 372 {
 373         if (target->endianness == TARGET_LITTLE_ENDIAN)
 374                 h_u64_to_le(buffer, value);
 375         else
 376                 h_u64_to_be(buffer, value);
 377 }
 378
 379 /* write a uint32_t to a buffer in target memory endianness */
 380 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 381 {
 382         if (target->endianness == TARGET_LITTLE_ENDIAN)
 383                 h_u32_to_le(buffer, value);
 384         else
 385                 h_u32_to_be(buffer, value);
 386 }
 387
 388 /* write a uint24_t to a buffer in target memory endianness */
 389 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 390 {
 391         if (target->endianness == TARGET_LITTLE_ENDIAN)
 392                 h_u24_to_le(buffer, value);
 393         else
 394                 h_u24_to_be(buffer, value);
 395 }
 396
 397 /* write a uint16_t to a buffer in target memory endianness */
 398 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 399 {
 400         if (target->endianness == TARGET_LITTLE_ENDIAN)
 401                 h_u16_to_le(buffer, value);
 402         else
 403                 h_u16_to_be(buffer, value);
 404 }
 405
 406 /* write a uint8_t to a buffer in target memory endianness */
 407 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 408 {
 409         *buffer = value;
 410 }
 411
 412 /* write a uint64_t array to a buffer in target memory endianness */
 413 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 414 {
 415         uint32_t i;
 416         for (i = 0; i < count; i++)
 417                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 418 }
 419
 420 /* write a uint32_t array to a buffer in target memory endianness */
 421 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 422 {
 423         uint32_t i;
 424         for (i = 0; i < count; i++)
 425                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 426 }
 427
 428 /* write a uint16_t array to a buffer in target memory endianness */
 429 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 430 {
 431         uint32_t i;
 432         for (i = 0; i < count; i++)
 433                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 434 }
 435
 436 /* write a uint64_t array to a buffer in target memory endianness */
 437 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 438 {
 439         uint32_t i;
 440         for (i = 0; i < count; i++)
 441                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 442 }
 443
 444 /* write a uint32_t array to a buffer in target memory endianness */
 445 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 446 {
 447         uint32_t i;
 448         for (i = 0; i < count; i++)
 449                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 450 }
 451
 452 /* write a uint16_t array to a buffer in target memory endianness */
 453 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 454 {
 455         uint32_t i;
 456         for (i = 0; i < count; i++)
 457                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 458 }
 459
 460 /* return a pointer to a configured target; id is name or number */
 461 struct target *get_target(const char *id)
 462 {
 463         struct target *target;
 464
 465         /* try as tcltarget name */
 466         for (target = all_targets; target; target = target->next) {
 467                 if (target_name(target) == NULL)
 468                         continue;
 469                 if (strcmp(id, target_name(target)) == 0)
 470                         return target;
 471         }
 472
 473         /* It's OK to remove this fallback sometime after August 2010 or so */
 474
 475         /* no match, try as number */
 476         unsigned num;
 477         if (parse_uint(id, &num) != ERROR_OK)
 478                 return NULL;
 479
 480         for (target = all_targets; target; target = target->next) {
 481                 if (target->target_number == (int)num) {
 482                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 483                                         target_name(target), num);
 484                         return target;
 485                 }
 486         }
 487
 488         return NULL;
 489 }
 490
 491 /* returns a pointer to the n-th configured target */
 492 struct target *get_target_by_num(int num)
 493 {
 494         struct target *target = all_targets;
 495
 496         while (target) {
 497                 if (target->target_number == num)
 498                         return target;
 499                 target = target->next;
 500         }
 501
 502         return NULL;
 503 }
 504
 505 struct target *get_current_target(struct command_context *cmd_ctx)
 506 {
 507         struct target *target = get_target_by_num(cmd_ctx->current_target);
 508
 509         if (target == NULL) {
 510                 LOG_ERROR("BUG: current_target out of bounds");
 511                 exit(-1);
 512         }
 513
 514         return target;
 515 }
 516
 517 int target_poll(struct target *target)
 518 {
 519         int retval;
 520
 521         /* We can't poll until after examine */
 522         if (!target_was_examined(target)) {
 523                 /* Fail silently lest we pollute the log */
 524                 return ERROR_FAIL;
 525         }
 526
 527         retval = target->type->poll(target);
 528         if (retval != ERROR_OK)
 529                 return retval;
 530
 531         if (target->halt_issued) {
 532                 if (target->state == TARGET_HALTED)
 533                         target->halt_issued = false;
 534                 else {
 535                         int64_t t = timeval_ms() - target->halt_issued_time;
 536                         if (t > DEFAULT_HALT_TIMEOUT) {
 537                                 target->halt_issued = false;
 538                                 LOG_INFO("Halt timed out, wake up GDB.");
 539                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 540                         }
 541                 }
 542         }
 543
 544         return ERROR_OK;
 545 }
 546
 547 int target_halt(struct target *target)
 548 {
 549         int retval;
 550         /* We can't poll until after examine */
 551         if (!target_was_examined(target)) {
 552                 LOG_ERROR("Target not examined yet");
 553                 return ERROR_FAIL;
 554         }
 555
 556         retval = target->type->halt(target);
 557         if (retval != ERROR_OK)
 558                 return retval;
 559
 560         target->halt_issued = true;
 561         target->halt_issued_time = timeval_ms();
 562
 563         return ERROR_OK;
 564 }
 565
 566 /**
 567  * Make the target (re)start executing using its saved execution
 568  * context (possibly with some modifications).
 569  *
 570  * @param target Which target should start executing.
 571  * @param current True to use the target's saved program counter instead
 572  *      of the address parameter
 573  * @param address Optionally used as the program counter.
 574  * @param handle_breakpoints True iff breakpoints at the resumption PC
 575  *      should be skipped.  (For example, maybe execution was stopped by
 576  *      such a breakpoint, in which case it would be counterprodutive to
 577  *      let it re-trigger.
 578  * @param debug_execution False if all working areas allocated by OpenOCD
 579  *      should be released and/or restored to their original contents.
 580  *      (This would for example be true to run some downloaded "helper"
 581  *      algorithm code, which resides in one such working buffer and uses
 582  *      another for data storage.)
 583  *
 584  * @todo Resolve the ambiguity about what the "debug_execution" flag
 585  * signifies.  For example, Target implementations don't agree on how
 586  * it relates to invalidation of the register cache, or to whether
 587  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 588  * to enable breakpoints when running downloaded "helper" algorithms
 589  * (debug_execution true), since the breakpoints would be set to match
 590  * target firmware being debugged, not the helper algorithm.... and
 591  * enabling them could cause such helpers to malfunction (for example,
 592  * by overwriting data with a breakpoint instruction.  On the other
 593  * hand the infrastructure for running such helpers might use this
 594  * procedure but rely on hardware breakpoint to detect termination.)
 595  */
 596 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 597 {
 598         int retval;
 599
 600         /* We can't poll until after examine */
 601         if (!target_was_examined(target)) {
 602                 LOG_ERROR("Target not examined yet");
 603                 return ERROR_FAIL;
 604         }
 605
 606         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 607
 608         /* note that resume *must* be asynchronous. The CPU can halt before
 609          * we poll. The CPU can even halt at the current PC as a result of
 610          * a software breakpoint being inserted by (a bug?) the application.
 611          */
 612         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 613         if (retval != ERROR_OK)
 614                 return retval;
 615
 616         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 617
 618         return retval;
 619 }
 620
 621 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 622 {
 623         char buf[100];
 624         int retval;
 625         Jim_Nvp *n;
 626         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 627         if (n->name == NULL) {
 628                 LOG_ERROR("invalid reset mode");
 629                 return ERROR_FAIL;
 630         }
 631
 632         struct target *target;
 633         for (target = all_targets; target; target = target->next)
 634                 target_call_reset_callbacks(target, reset_mode);
 635
 636         /* disable polling during reset to make reset event scripts
 637          * more predictable, i.e. dr/irscan & pathmove in events will
 638          * not have JTAG operations injected into the middle of a sequence.
 639          */
 640         bool save_poll = jtag_poll_get_enabled();
 641
 642         jtag_poll_set_enabled(false);
 643
 644         sprintf(buf, "ocd_process_reset %s", n->name);
 645         retval = Jim_Eval(cmd_ctx->interp, buf);
 646
 647         jtag_poll_set_enabled(save_poll);
 648
 649         if (retval != JIM_OK) {
 650                 Jim_MakeErrorMessage(cmd_ctx->interp);
 651                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 652                 return ERROR_FAIL;
 653         }
 654
 655         /* We want any events to be processed before the prompt */
 656         retval = target_call_timer_callbacks_now();
 657
 658         for (target = all_targets; target; target = target->next) {
 659                 target->type->check_reset(target);
 660                 target->running_alg = false;
 661         }
 662
 663         return retval;
 664 }
 665
 666 static int identity_virt2phys(struct target *target,
 667                 uint32_t virtual, uint32_t *physical)
 668 {
 669         *physical = virtual;
 670         return ERROR_OK;
 671 }
 672
 673 static int no_mmu(struct target *target, int *enabled)
 674 {
 675         *enabled = 0;
 676         return ERROR_OK;
 677 }
 678
 679 static int default_examine(struct target *target)
 680 {
 681         target_set_examined(target);
 682         return ERROR_OK;
 683 }
 684
 685 /* no check by default */
 686 static int default_check_reset(struct target *target)
 687 {
 688         return ERROR_OK;
 689 }
 690
 691 int target_examine_one(struct target *target)
 692 {
 693         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 694
 695         int retval = target->type->examine(target);
 696         if (retval != ERROR_OK)
 697                 return retval;
 698
 699         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 700
 701         return ERROR_OK;
 702 }
 703
 704 static int jtag_enable_callback(enum jtag_event event, void *priv)
 705 {
 706         struct target *target = priv;
 707
 708         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 709                 return ERROR_OK;
 710
 711         jtag_unregister_event_callback(jtag_enable_callback, target);
 712
 713         return target_examine_one(target);
 714 }
 715
 716 /* Targets that correctly implement init + examine, i.e.
 717  * no communication with target during init:
 718  *
 719  * XScale
 720  */
 721 int target_examine(void)
 722 {
 723         int retval = ERROR_OK;
 724         struct target *target;
 725
 726         for (target = all_targets; target; target = target->next) {
 727                 /* defer examination, but don't skip it */
 728                 if (!target->tap->enabled) {
 729                         jtag_register_event_callback(jtag_enable_callback,
 730                                         target);
 731                         continue;
 732                 }
 733
 734                 retval = target_examine_one(target);
 735                 if (retval != ERROR_OK)
 736                         return retval;
 737         }
 738         return retval;
 739 }
 740
 741 const char *target_type_name(struct target *target)
 742 {
 743         return target->type->name;
 744 }
 745
 746 static int target_soft_reset_halt(struct target *target)
 747 {
 748         if (!target_was_examined(target)) {
 749                 LOG_ERROR("Target not examined yet");
 750                 return ERROR_FAIL;
 751         }
 752         if (!target->type->soft_reset_halt) {
 753                 LOG_ERROR("Target %s does not support soft_reset_halt",
 754                                 target_name(target));
 755                 return ERROR_FAIL;
 756         }
 757         return target->type->soft_reset_halt(target);
 758 }
 759
 760 /**
 761  * Downloads a target-specific native code algorithm to the target,
 762  * and executes it.  * Note that some targets may need to set up, enable,
 763  * and tear down a breakpoint (hard or * soft) to detect algorithm
 764  * termination, while others may support  lower overhead schemes where
 765  * soft breakpoints embedded in the algorithm automatically terminate the
 766  * algorithm.
 767  *
 768  * @param target used to run the algorithm
 769  * @param arch_info target-specific description of the algorithm.
 770  */
 771 int target_run_algorithm(struct target *target,
 772                 int num_mem_params, struct mem_param *mem_params,
 773                 int num_reg_params, struct reg_param *reg_param,
 774                 uint32_t entry_point, uint32_t exit_point,
 775                 int timeout_ms, void *arch_info)
 776 {
 777         int retval = ERROR_FAIL;
 778
 779         if (!target_was_examined(target)) {
 780                 LOG_ERROR("Target not examined yet");
 781                 goto done;
 782         }
 783         if (!target->type->run_algorithm) {
 784                 LOG_ERROR("Target type '%s' does not support %s",
 785                                 target_type_name(target), __func__);
 786                 goto done;
 787         }
 788
 789         target->running_alg = true;
 790         retval = target->type->run_algorithm(target,
 791                         num_mem_params, mem_params,
 792                         num_reg_params, reg_param,
 793                         entry_point, exit_point, timeout_ms, arch_info);
 794         target->running_alg = false;
 795
 796 done:
 797         return retval;
 798 }
 799
 800 /**
 801  * Downloads a target-specific native code algorithm to the target,
 802  * executes and leaves it running.
 803  *
 804  * @param target used to run the algorithm
 805  * @param arch_info target-specific description of the algorithm.
 806  */
 807 int target_start_algorithm(struct target *target,
 808                 int num_mem_params, struct mem_param *mem_params,
 809                 int num_reg_params, struct reg_param *reg_params,
 810                 uint32_t entry_point, uint32_t exit_point,
 811                 void *arch_info)
 812 {
 813         int retval = ERROR_FAIL;
 814
 815         if (!target_was_examined(target)) {
 816                 LOG_ERROR("Target not examined yet");
 817                 goto done;
 818         }
 819         if (!target->type->start_algorithm) {
 820                 LOG_ERROR("Target type '%s' does not support %s",
 821                                 target_type_name(target), __func__);
 822                 goto done;
 823         }
 824         if (target->running_alg) {
 825                 LOG_ERROR("Target is already running an algorithm");
 826                 goto done;
 827         }
 828
 829         target->running_alg = true;
 830         retval = target->type->start_algorithm(target,
 831                         num_mem_params, mem_params,
 832                         num_reg_params, reg_params,
 833                         entry_point, exit_point, arch_info);
 834
 835 done:
 836         return retval;
 837 }
 838
 839 /**
 840  * Waits for an algorithm started with target_start_algorithm() to complete.
 841  *
 842  * @param target used to run the algorithm
 843  * @param arch_info target-specific description of the algorithm.
 844  */
 845 int target_wait_algorithm(struct target *target,
 846                 int num_mem_params, struct mem_param *mem_params,
 847                 int num_reg_params, struct reg_param *reg_params,
 848                 uint32_t exit_point, int timeout_ms,
 849                 void *arch_info)
 850 {
 851         int retval = ERROR_FAIL;
 852
 853         if (!target->type->wait_algorithm) {
 854                 LOG_ERROR("Target type '%s' does not support %s",
 855                                 target_type_name(target), __func__);
 856                 goto done;
 857         }
 858         if (!target->running_alg) {
 859                 LOG_ERROR("Target is not running an algorithm");
 860                 goto done;
 861         }
 862
 863         retval = target->type->wait_algorithm(target,
 864                         num_mem_params, mem_params,
 865                         num_reg_params, reg_params,
 866                         exit_point, timeout_ms, arch_info);
 867         if (retval != ERROR_TARGET_TIMEOUT)
 868                 target->running_alg = false;
 869
 870 done:
 871         return retval;
 872 }
 873
 874 /**
 875  * Executes a target-specific native code algorithm in the target.
 876  * It differs from target_run_algorithm in that the algorithm is asynchronous.
 877  * Because of this it requires an compliant algorithm:
 878  * see contrib/loaders/flash/stm32f1x.S for example.
 879  *
 880  * @param target used to run the algorithm
 881  */
 882
 883 int target_run_flash_async_algorithm(struct target *target,
 884                 const uint8_t *buffer, uint32_t count, int block_size,
 885                 int num_mem_params, struct mem_param *mem_params,
 886                 int num_reg_params, struct reg_param *reg_params,
 887                 uint32_t buffer_start, uint32_t buffer_size,
 888                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 889 {
 890         int retval;
 891         int timeout = 0;
 892
 893         const uint8_t *buffer_orig = buffer;
 894
 895         /* Set up working area. First word is write pointer, second word is read pointer,
 896          * rest is fifo data area. */
 897         uint32_t wp_addr = buffer_start;
 898         uint32_t rp_addr = buffer_start + 4;
 899         uint32_t fifo_start_addr = buffer_start + 8;
 900         uint32_t fifo_end_addr = buffer_start + buffer_size;
 901
 902         uint32_t wp = fifo_start_addr;
 903         uint32_t rp = fifo_start_addr;
 904
 905         /* validate block_size is 2^n */
 906         assert(!block_size || !(block_size & (block_size - 1)));
 907
 908         retval = target_write_u32(target, wp_addr, wp);
 909         if (retval != ERROR_OK)
 910                 return retval;
 911         retval = target_write_u32(target, rp_addr, rp);
 912         if (retval != ERROR_OK)
 913                 return retval;
 914
 915         /* Start up algorithm on target and let it idle while writing the first chunk */
 916         retval = target_start_algorithm(target, num_mem_params, mem_params,
 917                         num_reg_params, reg_params,
 918                         entry_point,
 919                         exit_point,
 920                         arch_info);
 921
 922         if (retval != ERROR_OK) {
 923                 LOG_ERROR("error starting target flash write algorithm");
 924                 return retval;
 925         }
 926
 927         while (count > 0) {
 928
 929                 retval = target_read_u32(target, rp_addr, &rp);
 930                 if (retval != ERROR_OK) {
 931                         LOG_ERROR("failed to get read pointer");
 932                         break;
 933                 }
 934
 935                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 936                         (size_t) (buffer - buffer_orig), count, wp, rp);
 937
 938                 if (rp == 0) {
 939                         LOG_ERROR("flash write algorithm aborted by target");
 940                         retval = ERROR_FLASH_OPERATION_FAILED;
 941                         break;
 942                 }
 943
 944                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 945                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 946                         break;
 947                 }
 948
 949                 /* Count the number of bytes available in the fifo without
 950                  * crossing the wrap around. Make sure to not fill it completely,
 951                  * because that would make wp == rp and that's the empty condition. */
 952                 uint32_t thisrun_bytes;
 953                 if (rp > wp)
 954                         thisrun_bytes = rp - wp - block_size;
 955                 else if (rp > fifo_start_addr)
 956                         thisrun_bytes = fifo_end_addr - wp;
 957                 else
 958                         thisrun_bytes = fifo_end_addr - wp - block_size;
 959
 960                 if (thisrun_bytes == 0) {
 961                         /* Throttle polling a bit if transfer is (much) faster than flash
 962                          * programming. The exact delay shouldn't matter as long as it's
 963                          * less than buffer size / flash speed. This is very unlikely to
 964                          * run when using high latency connections such as USB. */
 965                         alive_sleep(10);
 966
 967                         /* to stop an infinite loop on some targets check and increment a timeout
 968                          * this issue was observed on a stellaris using the new ICDI interface */
 969                         if (timeout++ >= 500) {
 970                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
 971                                 return ERROR_FLASH_OPERATION_FAILED;
 972                         }
 973                         continue;
 974                 }
 975
 976                 /* reset our timeout */
 977                 timeout = 0;
 978
 979                 /* Limit to the amount of data we actually want to write */
 980                 if (thisrun_bytes > count * block_size)
 981                         thisrun_bytes = count * block_size;
 982
 983                 /* Write data to fifo */
 984                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 985                 if (retval != ERROR_OK)
 986                         break;
 987
 988                 /* Update counters and wrap write pointer */
 989                 buffer += thisrun_bytes;
 990                 count -= thisrun_bytes / block_size;
 991                 wp += thisrun_bytes;
 992                 if (wp >= fifo_end_addr)
 993                         wp = fifo_start_addr;
 994
 995                 /* Store updated write pointer to target */
 996                 retval = target_write_u32(target, wp_addr, wp);
 997                 if (retval != ERROR_OK)
 998                         break;
 999         }
1000
1001         if (retval != ERROR_OK) {
1002                 /* abort flash write algorithm on target */
1003                 target_write_u32(target, wp_addr, 0);
1004         }
1005
1006         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1007                         num_reg_params, reg_params,
1008                         exit_point,
1009                         10000,
1010                         arch_info);
1011
1012         if (retval2 != ERROR_OK) {
1013                 LOG_ERROR("error waiting for target flash write algorithm");
1014                 retval = retval2;
1015         }
1016
1017         return retval;
1018 }
1019
1020 int target_read_memory(struct target *target,
1021                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1022 {
1023         if (!target_was_examined(target)) {
1024                 LOG_ERROR("Target not examined yet");
1025                 return ERROR_FAIL;
1026         }
1027         if (!target->type->read_memory) {
1028                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1029                 return ERROR_FAIL;
1030         }
1031         return target->type->read_memory(target, address, size, count, buffer);
1032 }
1033
1034 int target_read_phys_memory(struct target *target,
1035                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1036 {
1037         if (!target_was_examined(target)) {
1038                 LOG_ERROR("Target not examined yet");
1039                 return ERROR_FAIL;
1040         }
1041         if (!target->type->read_phys_memory) {
1042                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1043                 return ERROR_FAIL;
1044         }
1045         return target->type->read_phys_memory(target, address, size, count, buffer);
1046 }
1047
1048 int target_write_memory(struct target *target,
1049                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1050 {
1051         if (!target_was_examined(target)) {
1052                 LOG_ERROR("Target not examined yet");
1053                 return ERROR_FAIL;
1054         }
1055         if (!target->type->write_memory) {
1056                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1057                 return ERROR_FAIL;
1058         }
1059         return target->type->write_memory(target, address, size, count, buffer);
1060 }
1061
1062 int target_write_phys_memory(struct target *target,
1063                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1064 {
1065         if (!target_was_examined(target)) {
1066                 LOG_ERROR("Target not examined yet");
1067                 return ERROR_FAIL;
1068         }
1069         if (!target->type->write_phys_memory) {
1070                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1071                 return ERROR_FAIL;
1072         }
1073         return target->type->write_phys_memory(target, address, size, count, buffer);
1074 }
1075
1076 int target_add_breakpoint(struct target *target,
1077                 struct breakpoint *breakpoint)
1078 {
1079         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1080                 LOG_WARNING("target %s is not halted", target_name(target));
1081                 return ERROR_TARGET_NOT_HALTED;
1082         }
1083         return target->type->add_breakpoint(target, breakpoint);
1084 }
1085
1086 int target_add_context_breakpoint(struct target *target,
1087                 struct breakpoint *breakpoint)
1088 {
1089         if (target->state != TARGET_HALTED) {
1090                 LOG_WARNING("target %s is not halted", target_name(target));
1091                 return ERROR_TARGET_NOT_HALTED;
1092         }
1093         return target->type->add_context_breakpoint(target, breakpoint);
1094 }
1095
1096 int target_add_hybrid_breakpoint(struct target *target,
1097                 struct breakpoint *breakpoint)
1098 {
1099         if (target->state != TARGET_HALTED) {
1100                 LOG_WARNING("target %s is not halted", target_name(target));
1101                 return ERROR_TARGET_NOT_HALTED;
1102         }
1103         return target->type->add_hybrid_breakpoint(target, breakpoint);
1104 }
1105
1106 int target_remove_breakpoint(struct target *target,
1107                 struct breakpoint *breakpoint)
1108 {
1109         return target->type->remove_breakpoint(target, breakpoint);
1110 }
1111
1112 int target_add_watchpoint(struct target *target,
1113                 struct watchpoint *watchpoint)
1114 {
1115         if (target->state != TARGET_HALTED) {
1116                 LOG_WARNING("target %s is not halted", target_name(target));
1117                 return ERROR_TARGET_NOT_HALTED;
1118         }
1119         return target->type->add_watchpoint(target, watchpoint);
1120 }
1121 int target_remove_watchpoint(struct target *target,
1122                 struct watchpoint *watchpoint)
1123 {
1124         return target->type->remove_watchpoint(target, watchpoint);
1125 }
1126 int target_hit_watchpoint(struct target *target,
1127                 struct watchpoint **hit_watchpoint)
1128 {
1129         if (target->state != TARGET_HALTED) {
1130                 LOG_WARNING("target %s is not halted", target->cmd_name);
1131                 return ERROR_TARGET_NOT_HALTED;
1132         }
1133
1134         if (target->type->hit_watchpoint == NULL) {
1135                 /* For backward compatible, if hit_watchpoint is not implemented,
1136                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1137                  * information. */
1138                 return ERROR_FAIL;
1139         }
1140
1141         return target->type->hit_watchpoint(target, hit_watchpoint);
1142 }
1143
1144 int target_get_gdb_reg_list(struct target *target,
1145                 struct reg **reg_list[], int *reg_list_size,
1146                 enum target_register_class reg_class)
1147 {
1148         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1149 }
1150 int target_step(struct target *target,
1151                 int current, uint32_t address, int handle_breakpoints)
1152 {
1153         return target->type->step(target, current, address, handle_breakpoints);
1154 }
1155
1156 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1157 {
1158         if (target->state != TARGET_HALTED) {
1159                 LOG_WARNING("target %s is not halted", target->cmd_name);
1160                 return ERROR_TARGET_NOT_HALTED;
1161         }
1162         return target->type->get_gdb_fileio_info(target, fileio_info);
1163 }
1164
1165 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1166 {
1167         if (target->state != TARGET_HALTED) {
1168                 LOG_WARNING("target %s is not halted", target->cmd_name);
1169                 return ERROR_TARGET_NOT_HALTED;
1170         }
1171         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1172 }
1173
1174 int target_profiling(struct target *target, uint32_t *samples,
1175                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1176 {
1177         if (target->state != TARGET_HALTED) {
1178                 LOG_WARNING("target %s is not halted", target->cmd_name);
1179                 return ERROR_TARGET_NOT_HALTED;
1180         }
1181         return target->type->profiling(target, samples, max_num_samples,
1182                         num_samples, seconds);
1183 }
1184
1185 /**
1186  * Reset the @c examined flag for the given target.
1187  * Pure paranoia -- targets are zeroed on allocation.
1188  */
1189 static void target_reset_examined(struct target *target)
1190 {
1191         target->examined = false;
1192 }
1193
1194 static int handle_target(void *priv);
1195
1196 static int target_init_one(struct command_context *cmd_ctx,
1197                 struct target *target)
1198 {
1199         target_reset_examined(target);
1200
1201         struct target_type *type = target->type;
1202         if (type->examine == NULL)
1203                 type->examine = default_examine;
1204
1205         if (type->check_reset == NULL)
1206                 type->check_reset = default_check_reset;
1207
1208         assert(type->init_target != NULL);
1209
1210         int retval = type->init_target(cmd_ctx, target);
1211         if (ERROR_OK != retval) {
1212                 LOG_ERROR("target '%s' init failed", target_name(target));
1213                 return retval;
1214         }
1215
1216         /* Sanity-check MMU support ... stub in what we must, to help
1217          * implement it in stages, but warn if we need to do so.
1218          */
1219         if (type->mmu) {
1220                 if (type->virt2phys == NULL) {
1221                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1222                         type->virt2phys = identity_virt2phys;
1223                 }
1224         } else {
1225                 /* Make sure no-MMU targets all behave the same:  make no
1226                  * distinction between physical and virtual addresses, and
1227                  * ensure that virt2phys() is always an identity mapping.
1228                  */
1229                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1230                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1231
1232                 type->mmu = no_mmu;
1233                 type->write_phys_memory = type->write_memory;
1234                 type->read_phys_memory = type->read_memory;
1235                 type->virt2phys = identity_virt2phys;
1236         }
1237
1238         if (target->type->read_buffer == NULL)
1239                 target->type->read_buffer = target_read_buffer_default;
1240
1241         if (target->type->write_buffer == NULL)
1242                 target->type->write_buffer = target_write_buffer_default;
1243
1244         if (target->type->get_gdb_fileio_info == NULL)
1245                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1246
1247         if (target->type->gdb_fileio_end == NULL)
1248                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1249
1250         if (target->type->profiling == NULL)
1251                 target->type->profiling = target_profiling_default;
1252
1253         return ERROR_OK;
1254 }
1255
1256 static int target_init(struct command_context *cmd_ctx)
1257 {
1258         struct target *target;
1259         int retval;
1260
1261         for (target = all_targets; target; target = target->next) {
1262                 retval = target_init_one(cmd_ctx, target);
1263                 if (ERROR_OK != retval)
1264                         return retval;
1265         }
1266
1267         if (!all_targets)
1268                 return ERROR_OK;
1269
1270         retval = target_register_user_commands(cmd_ctx);
1271         if (ERROR_OK != retval)
1272                 return retval;
1273
1274         retval = target_register_timer_callback(&handle_target,
1275                         polling_interval, 1, cmd_ctx->interp);
1276         if (ERROR_OK != retval)
1277                 return retval;
1278
1279         return ERROR_OK;
1280 }
1281
1282 COMMAND_HANDLER(handle_target_init_command)
1283 {
1284         int retval;
1285
1286         if (CMD_ARGC != 0)
1287                 return ERROR_COMMAND_SYNTAX_ERROR;
1288
1289         static bool target_initialized;
1290         if (target_initialized) {
1291                 LOG_INFO("'target init' has already been called");
1292                 return ERROR_OK;
1293         }
1294         target_initialized = true;
1295
1296         retval = command_run_line(CMD_CTX, "init_targets");
1297         if (ERROR_OK != retval)
1298                 return retval;
1299
1300         retval = command_run_line(CMD_CTX, "init_target_events");
1301         if (ERROR_OK != retval)
1302                 return retval;
1303
1304         retval = command_run_line(CMD_CTX, "init_board");
1305         if (ERROR_OK != retval)
1306                 return retval;
1307
1308         LOG_DEBUG("Initializing targets...");
1309         return target_init(CMD_CTX);
1310 }
1311
1312 int target_register_event_callback(int (*callback)(struct target *target,
1313                 enum target_event event, void *priv), void *priv)
1314 {
1315         struct target_event_callback **callbacks_p = &target_event_callbacks;
1316
1317         if (callback == NULL)
1318                 return ERROR_COMMAND_SYNTAX_ERROR;
1319
1320         if (*callbacks_p) {
1321                 while ((*callbacks_p)->next)
1322                         callbacks_p = &((*callbacks_p)->next);
1323                 callbacks_p = &((*callbacks_p)->next);
1324         }
1325
1326         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1327         (*callbacks_p)->callback = callback;
1328         (*callbacks_p)->priv = priv;
1329         (*callbacks_p)->next = NULL;
1330
1331         return ERROR_OK;
1332 }
1333
1334 int target_register_reset_callback(int (*callback)(struct target *target,
1335                 enum target_reset_mode reset_mode, void *priv), void *priv)
1336 {
1337         struct target_reset_callback *entry;
1338
1339         if (callback == NULL)
1340                 return ERROR_COMMAND_SYNTAX_ERROR;
1341
1342         entry = malloc(sizeof(struct target_reset_callback));
1343         if (entry == NULL) {
1344                 LOG_ERROR("error allocating buffer for reset callback entry");
1345                 return ERROR_COMMAND_SYNTAX_ERROR;
1346         }
1347
1348         entry->callback = callback;
1349         entry->priv = priv;
1350         list_add(&entry->list, &target_reset_callback_list);
1351
1352
1353         return ERROR_OK;
1354 }
1355
1356 int target_register_trace_callback(int (*callback)(struct target *target,
1357                 size_t len, uint8_t *data, void *priv), void *priv)
1358 {
1359         struct target_trace_callback *entry;
1360
1361         if (callback == NULL)
1362                 return ERROR_COMMAND_SYNTAX_ERROR;
1363
1364         entry = malloc(sizeof(struct target_trace_callback));
1365         if (entry == NULL) {
1366                 LOG_ERROR("error allocating buffer for trace callback entry");
1367                 return ERROR_COMMAND_SYNTAX_ERROR;
1368         }
1369
1370         entry->callback = callback;
1371         entry->priv = priv;
1372         list_add(&entry->list, &target_trace_callback_list);
1373
1374
1375         return ERROR_OK;
1376 }
1377
1378 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1379 {
1380         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1381         struct timeval now;
1382
1383         if (callback == NULL)
1384                 return ERROR_COMMAND_SYNTAX_ERROR;
1385
1386         if (*callbacks_p) {
1387                 while ((*callbacks_p)->next)
1388                         callbacks_p = &((*callbacks_p)->next);
1389                 callbacks_p = &((*callbacks_p)->next);
1390         }
1391
1392         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1393         (*callbacks_p)->callback = callback;
1394         (*callbacks_p)->periodic = periodic;
1395         (*callbacks_p)->time_ms = time_ms;
1396         (*callbacks_p)->removed = false;
1397
1398         gettimeofday(&now, NULL);
1399         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1400         time_ms -= (time_ms % 1000);
1401         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1402         if ((*callbacks_p)->when.tv_usec > 1000000) {
1403                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1404                 (*callbacks_p)->when.tv_sec += 1;
1405         }
1406
1407         (*callbacks_p)->priv = priv;
1408         (*callbacks_p)->next = NULL;
1409
1410         return ERROR_OK;
1411 }
1412
1413 int target_unregister_event_callback(int (*callback)(struct target *target,
1414                 enum target_event event, void *priv), void *priv)
1415 {
1416         struct target_event_callback **p = &target_event_callbacks;
1417         struct target_event_callback *c = target_event_callbacks;
1418
1419         if (callback == NULL)
1420                 return ERROR_COMMAND_SYNTAX_ERROR;
1421
1422         while (c) {
1423                 struct target_event_callback *next = c->next;
1424                 if ((c->callback == callback) && (c->priv == priv)) {
1425                         *p = next;
1426                         free(c);
1427                         return ERROR_OK;
1428                 } else
1429                         p = &(c->next);
1430                 c = next;
1431         }
1432
1433         return ERROR_OK;
1434 }
1435
1436 int target_unregister_reset_callback(int (*callback)(struct target *target,
1437                 enum target_reset_mode reset_mode, void *priv), void *priv)
1438 {
1439         struct target_reset_callback *entry;
1440
1441         if (callback == NULL)
1442                 return ERROR_COMMAND_SYNTAX_ERROR;
1443
1444         list_for_each_entry(entry, &target_reset_callback_list, list) {
1445                 if (entry->callback == callback && entry->priv == priv) {
1446                         list_del(&entry->list);
1447                         free(entry);
1448                         break;
1449                 }
1450         }
1451
1452         return ERROR_OK;
1453 }
1454
1455 int target_unregister_trace_callback(int (*callback)(struct target *target,
1456                 size_t len, uint8_t *data, void *priv), void *priv)
1457 {
1458         struct target_trace_callback *entry;
1459
1460         if (callback == NULL)
1461                 return ERROR_COMMAND_SYNTAX_ERROR;
1462
1463         list_for_each_entry(entry, &target_trace_callback_list, list) {
1464                 if (entry->callback == callback && entry->priv == priv) {
1465                         list_del(&entry->list);
1466                         free(entry);
1467                         break;
1468                 }
1469         }
1470
1471         return ERROR_OK;
1472 }
1473
1474 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1475 {
1476         if (callback == NULL)
1477                 return ERROR_COMMAND_SYNTAX_ERROR;
1478
1479         for (struct target_timer_callback *c = target_timer_callbacks;
1480              c; c = c->next) {
1481                 if ((c->callback == callback) && (c->priv == priv)) {
1482                         c->removed = true;
1483                         return ERROR_OK;
1484                 }
1485         }
1486
1487         return ERROR_FAIL;
1488 }
1489
1490 int target_call_event_callbacks(struct target *target, enum target_event event)
1491 {
1492         struct target_event_callback *callback = target_event_callbacks;
1493         struct target_event_callback *next_callback;
1494
1495         if (event == TARGET_EVENT_HALTED) {
1496                 /* execute early halted first */
1497                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1498         }
1499
1500         LOG_DEBUG("target event %i (%s)", event,
1501                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1502
1503         target_handle_event(target, event);
1504
1505         while (callback) {
1506                 next_callback = callback->next;
1507                 callback->callback(target, event, callback->priv);
1508                 callback = next_callback;
1509         }
1510
1511         return ERROR_OK;
1512 }
1513
1514 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1515 {
1516         struct target_reset_callback *callback;
1517
1518         LOG_DEBUG("target reset %i (%s)", reset_mode,
1519                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1520
1521         list_for_each_entry(callback, &target_reset_callback_list, list)
1522                 callback->callback(target, reset_mode, callback->priv);
1523
1524         return ERROR_OK;
1525 }
1526
1527 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1528 {
1529         struct target_trace_callback *callback;
1530
1531         list_for_each_entry(callback, &target_trace_callback_list, list)
1532                 callback->callback(target, len, data, callback->priv);
1533
1534         return ERROR_OK;
1535 }
1536
1537 static int target_timer_callback_periodic_restart(
1538                 struct target_timer_callback *cb, struct timeval *now)
1539 {
1540         int time_ms = cb->time_ms;
1541         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1542         time_ms -= (time_ms % 1000);
1543         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1544         if (cb->when.tv_usec > 1000000) {
1545                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1546                 cb->when.tv_sec += 1;
1547         }
1548         return ERROR_OK;
1549 }
1550
1551 static int target_call_timer_callback(struct target_timer_callback *cb,
1552                 struct timeval *now)
1553 {
1554         cb->callback(cb->priv);
1555
1556         if (cb->periodic)
1557                 return target_timer_callback_periodic_restart(cb, now);
1558
1559         return target_unregister_timer_callback(cb->callback, cb->priv);
1560 }
1561
1562 static int target_call_timer_callbacks_check_time(int checktime)
1563 {
1564         static bool callback_processing;
1565
1566         /* Do not allow nesting */
1567         if (callback_processing)
1568                 return ERROR_OK;
1569
1570         callback_processing = true;
1571
1572         keep_alive();
1573
1574         struct timeval now;
1575         gettimeofday(&now, NULL);
1576
1577         /* Store an address of the place containing a pointer to the
1578          * next item; initially, that's a standalone "root of the
1579          * list" variable. */
1580         struct target_timer_callback **callback = &target_timer_callbacks;
1581         while (*callback) {
1582                 if ((*callback)->removed) {
1583                         struct target_timer_callback *p = *callback;
1584                         *callback = (*callback)->next;
1585                         free(p);
1586                         continue;
1587                 }
1588
1589                 bool call_it = (*callback)->callback &&
1590                         ((!checktime && (*callback)->periodic) ||
1591                          now.tv_sec > (*callback)->when.tv_sec ||
1592                          (now.tv_sec == (*callback)->when.tv_sec &&
1593                           now.tv_usec >= (*callback)->when.tv_usec));
1594
1595                 if (call_it)
1596                         target_call_timer_callback(*callback, &now);
1597
1598                 callback = &(*callback)->next;
1599         }
1600
1601         callback_processing = false;
1602         return ERROR_OK;
1603 }
1604
1605 int target_call_timer_callbacks(void)
1606 {
1607         return target_call_timer_callbacks_check_time(1);
1608 }
1609
1610 /* invoke periodic callbacks immediately */
1611 int target_call_timer_callbacks_now(void)
1612 {
1613         return target_call_timer_callbacks_check_time(0);
1614 }
1615
1616 /* Prints the working area layout for debug purposes */
1617 static void print_wa_layout(struct target *target)
1618 {
1619         struct working_area *c = target->working_areas;
1620
1621         while (c) {
1622                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1623                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1624                         c->address, c->address + c->size - 1, c->size);
1625                 c = c->next;
1626         }
1627 }
1628
1629 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1630 static void target_split_working_area(struct working_area *area, uint32_t size)
1631 {
1632         assert(area->free); /* Shouldn't split an allocated area */
1633         assert(size <= area->size); /* Caller should guarantee this */
1634
1635         /* Split only if not already the right size */
1636         if (size < area->size) {
1637                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1638
1639                 if (new_wa == NULL)
1640                         return;
1641
1642                 new_wa->next = area->next;
1643                 new_wa->size = area->size - size;
1644                 new_wa->address = area->address + size;
1645                 new_wa->backup = NULL;
1646                 new_wa->user = NULL;
1647                 new_wa->free = true;
1648
1649                 area->next = new_wa;
1650                 area->size = size;
1651
1652                 /* If backup memory was allocated to this area, it has the wrong size
1653                  * now so free it and it will be reallocated if/when needed */
1654                 if (area->backup) {
1655                         free(area->backup);
1656                         area->backup = NULL;
1657                 }
1658         }
1659 }
1660
1661 /* Merge all adjacent free areas into one */
1662 static void target_merge_working_areas(struct target *target)
1663 {
1664         struct working_area *c = target->working_areas;
1665
1666         while (c && c->next) {
1667                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1668
1669                 /* Find two adjacent free areas */
1670                 if (c->free && c->next->free) {
1671                         /* Merge the last into the first */
1672                         c->size += c->next->size;
1673
1674                         /* Remove the last */
1675                         struct working_area *to_be_freed = c->next;
1676                         c->next = c->next->next;
1677                         if (to_be_freed->backup)
1678                                 free(to_be_freed->backup);
1679                         free(to_be_freed);
1680
1681                         /* If backup memory was allocated to the remaining area, it's has
1682                          * the wrong size now */
1683                         if (c->backup) {
1684                                 free(c->backup);
1685                                 c->backup = NULL;
1686                         }
1687                 } else {
1688                         c = c->next;
1689                 }
1690         }
1691 }
1692
1693 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1694 {
1695         /* Reevaluate working area address based on MMU state*/
1696         if (target->working_areas == NULL) {
1697                 int retval;
1698                 int enabled;
1699
1700                 retval = target->type->mmu(target, &enabled);
1701                 if (retval != ERROR_OK)
1702                         return retval;
1703
1704                 if (!enabled) {
1705                         if (target->working_area_phys_spec) {
1706                                 LOG_DEBUG("MMU disabled, using physical "
1707                                         "address for working memory 0x%08"PRIx32,
1708                                         target->working_area_phys);
1709                                 target->working_area = target->working_area_phys;
1710                         } else {
1711                                 LOG_ERROR("No working memory available. "
1712                                         "Specify -work-area-phys to target.");
1713                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1714                         }
1715                 } else {
1716                         if (target->working_area_virt_spec) {
1717                                 LOG_DEBUG("MMU enabled, using virtual "
1718                                         "address for working memory 0x%08"PRIx32,
1719                                         target->working_area_virt);
1720                                 target->working_area = target->working_area_virt;
1721                         } else {
1722                                 LOG_ERROR("No working memory available. "
1723                                         "Specify -work-area-virt to target.");
1724                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1725                         }
1726                 }
1727
1728                 /* Set up initial working area on first call */
1729                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1730                 if (new_wa) {
1731                         new_wa->next = NULL;
1732                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1733                         new_wa->address = target->working_area;
1734                         new_wa->backup = NULL;
1735                         new_wa->user = NULL;
1736                         new_wa->free = true;
1737                 }
1738
1739                 target->working_areas = new_wa;
1740         }
1741
1742         /* only allocate multiples of 4 byte */
1743         if (size % 4)
1744                 size = (size + 3) & (~3UL);
1745
1746         struct working_area *c = target->working_areas;
1747
1748         /* Find the first large enough working area */
1749         while (c) {
1750                 if (c->free && c->size >= size)
1751                         break;
1752                 c = c->next;
1753         }
1754
1755         if (c == NULL)
1756                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1757
1758         /* Split the working area into the requested size */
1759         target_split_working_area(c, size);
1760
1761         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1762
1763         if (target->backup_working_area) {
1764                 if (c->backup == NULL) {
1765                         c->backup = malloc(c->size);
1766                         if (c->backup == NULL)
1767                                 return ERROR_FAIL;
1768                 }
1769
1770                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1771                 if (retval != ERROR_OK)
1772                         return retval;
1773         }
1774
1775         /* mark as used, and return the new (reused) area */
1776         c->free = false;
1777         *area = c;
1778
1779         /* user pointer */
1780         c->user = area;
1781
1782         print_wa_layout(target);
1783
1784         return ERROR_OK;
1785 }
1786
1787 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1788 {
1789         int retval;
1790
1791         retval = target_alloc_working_area_try(target, size, area);
1792         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1793                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1794         return retval;
1795
1796 }
1797
1798 static int target_restore_working_area(struct target *target, struct working_area *area)
1799 {
1800         int retval = ERROR_OK;
1801
1802         if (target->backup_working_area && area->backup != NULL) {
1803                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1804                 if (retval != ERROR_OK)
1805                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1806                                         area->size, area->address);
1807         }
1808
1809         return retval;
1810 }
1811
1812 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1813 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1814 {
1815         int retval = ERROR_OK;
1816
1817         if (area->free)
1818                 return retval;
1819
1820         if (restore) {
1821                 retval = target_restore_working_area(target, area);
1822                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1823                 if (retval != ERROR_OK)
1824                         return retval;
1825         }
1826
1827         area->free = true;
1828
1829         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1830                         area->size, area->address);
1831
1832         /* mark user pointer invalid */
1833         /* TODO: Is this really safe? It points to some previous caller's memory.
1834          * How could we know that the area pointer is still in that place and not
1835          * some other vital data? What's the purpose of this, anyway? */
1836         *area->user = NULL;
1837         area->user = NULL;
1838
1839         target_merge_working_areas(target);
1840
1841         print_wa_layout(target);
1842
1843         return retval;
1844 }
1845
1846 int target_free_working_area(struct target *target, struct working_area *area)
1847 {
1848         return target_free_working_area_restore(target, area, 1);
1849 }
1850
1851 void target_quit(void)
1852 {
1853         struct target_event_callback *pe = target_event_callbacks;
1854         while (pe) {
1855                 struct target_event_callback *t = pe->next;
1856                 free(pe);
1857                 pe = t;
1858         }
1859         target_event_callbacks = NULL;
1860
1861         struct target_timer_callback *pt = target_timer_callbacks;
1862         while (pt) {
1863                 struct target_timer_callback *t = pt->next;
1864                 free(pt);
1865                 pt = t;
1866         }
1867         target_timer_callbacks = NULL;
1868
1869         for (struct target *target = all_targets;
1870              target; target = target->next) {
1871                 if (target->type->deinit_target)
1872                         target->type->deinit_target(target);
1873         }
1874 }
1875
1876 /* free resources and restore memory, if restoring memory fails,
1877  * free up resources anyway
1878  */
1879 static void target_free_all_working_areas_restore(struct target *target, int restore)
1880 {
1881         struct working_area *c = target->working_areas;
1882
1883         LOG_DEBUG("freeing all working areas");
1884
1885         /* Loop through all areas, restoring the allocated ones and marking them as free */
1886         while (c) {
1887                 if (!c->free) {
1888                         if (restore)
1889                                 target_restore_working_area(target, c);
1890                         c->free = true;
1891                         *c->user = NULL; /* Same as above */
1892                         c->user = NULL;
1893                 }
1894                 c = c->next;
1895         }
1896
1897         /* Run a merge pass to combine all areas into one */
1898         target_merge_working_areas(target);
1899
1900         print_wa_layout(target);
1901 }
1902
1903 void target_free_all_working_areas(struct target *target)
1904 {
1905         target_free_all_working_areas_restore(target, 1);
1906 }
1907
1908 /* Find the largest number of bytes that can be allocated */
1909 uint32_t target_get_working_area_avail(struct target *target)
1910 {
1911         struct working_area *c = target->working_areas;
1912         uint32_t max_size = 0;
1913
1914         if (c == NULL)
1915                 return target->working_area_size;
1916
1917         while (c) {
1918                 if (c->free && max_size < c->size)
1919                         max_size = c->size;
1920
1921                 c = c->next;
1922         }
1923
1924         return max_size;
1925 }
1926
1927 int target_arch_state(struct target *target)
1928 {
1929         int retval;
1930         if (target == NULL) {
1931                 LOG_USER("No target has been configured");
1932                 return ERROR_OK;
1933         }
1934
1935         LOG_USER("%s: target state: %s", target_name(target),
1936                  target_state_name(target));
1937
1938         if (target->state != TARGET_HALTED)
1939                 return ERROR_OK;
1940
1941         retval = target->type->arch_state(target);
1942         return retval;
1943 }
1944
1945 static int target_get_gdb_fileio_info_default(struct target *target,
1946                 struct gdb_fileio_info *fileio_info)
1947 {
1948         /* If target does not support semi-hosting function, target
1949            has no need to provide .get_gdb_fileio_info callback.
1950            It just return ERROR_FAIL and gdb_server will return "Txx"
1951            as target halted every time.  */
1952         return ERROR_FAIL;
1953 }
1954
1955 static int target_gdb_fileio_end_default(struct target *target,
1956                 int retcode, int fileio_errno, bool ctrl_c)
1957 {
1958         return ERROR_OK;
1959 }
1960
1961 static int target_profiling_default(struct target *target, uint32_t *samples,
1962                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1963 {
1964         struct timeval timeout, now;
1965
1966         gettimeofday(&timeout, NULL);
1967         timeval_add_time(&timeout, seconds, 0);
1968
1969         LOG_INFO("Starting profiling. Halting and resuming the"
1970                         " target as often as we can...");
1971
1972         uint32_t sample_count = 0;
1973         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
1974         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
1975
1976         int retval = ERROR_OK;
1977         for (;;) {
1978                 target_poll(target);
1979                 if (target->state == TARGET_HALTED) {
1980                         uint32_t t = buf_get_u32(reg->value, 0, 32);
1981                         samples[sample_count++] = t;
1982                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
1983                         retval = target_resume(target, 1, 0, 0, 0);
1984                         target_poll(target);
1985                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
1986                 } else if (target->state == TARGET_RUNNING) {
1987                         /* We want to quickly sample the PC. */
1988                         retval = target_halt(target);
1989                 } else {
1990                         LOG_INFO("Target not halted or running");
1991                         retval = ERROR_OK;
1992                         break;
1993                 }
1994
1995                 if (retval != ERROR_OK)
1996                         break;
1997
1998                 gettimeofday(&now, NULL);
1999                 if ((sample_count >= max_num_samples) ||
2000                         ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))) {
2001                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2002                         break;
2003                 }
2004         }
2005
2006         *num_samples = sample_count;
2007         return retval;
2008 }
2009
2010 /* Single aligned words are guaranteed to use 16 or 32 bit access
2011  * mode respectively, otherwise data is handled as quickly as
2012  * possible
2013  */
2014 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
2015 {
2016         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
2017                         (int)size, (unsigned)address);
2018
2019         if (!target_was_examined(target)) {
2020                 LOG_ERROR("Target not examined yet");
2021                 return ERROR_FAIL;
2022         }
2023
2024         if (size == 0)
2025                 return ERROR_OK;
2026
2027         if ((address + size - 1) < address) {
2028                 /* GDB can request this when e.g. PC is 0xfffffffc*/
2029                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
2030                                   (unsigned)address,
2031                                   (unsigned)size);
2032                 return ERROR_FAIL;
2033         }
2034
2035         return target->type->write_buffer(target, address, size, buffer);
2036 }
2037
2038 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t count, const uint8_t *buffer)
2039 {
2040         uint32_t size;
2041
2042         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2043          * will have something to do with the size we leave to it. */
2044         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2045                 if (address & size) {
2046                         int retval = target_write_memory(target, address, size, 1, buffer);
2047                         if (retval != ERROR_OK)
2048                                 return retval;
2049                         address += size;
2050                         count -= size;
2051                         buffer += size;
2052                 }
2053         }
2054
2055         /* Write the data with as large access size as possible. */
2056         for (; size > 0; size /= 2) {
2057                 uint32_t aligned = count - count % size;
2058                 if (aligned > 0) {
2059                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2060                         if (retval != ERROR_OK)
2061                                 return retval;
2062                         address += aligned;
2063                         count -= aligned;
2064                         buffer += aligned;
2065                 }
2066         }
2067
2068         return ERROR_OK;
2069 }
2070
2071 /* Single aligned words are guaranteed to use 16 or 32 bit access
2072  * mode respectively, otherwise data is handled as quickly as
2073  * possible
2074  */
2075 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
2076 {
2077         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
2078                           (int)size, (unsigned)address);
2079
2080         if (!target_was_examined(target)) {
2081                 LOG_ERROR("Target not examined yet");
2082                 return ERROR_FAIL;
2083         }
2084
2085         if (size == 0)
2086                 return ERROR_OK;
2087
2088         if ((address + size - 1) < address) {
2089                 /* GDB can request this when e.g. PC is 0xfffffffc*/
2090                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
2091                                   address,
2092                                   size);
2093                 return ERROR_FAIL;
2094         }
2095
2096         return target->type->read_buffer(target, address, size, buffer);
2097 }
2098
2099 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t count, uint8_t *buffer)
2100 {
2101         uint32_t size;
2102
2103         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2104          * will have something to do with the size we leave to it. */
2105         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2106                 if (address & size) {
2107                         int retval = target_read_memory(target, address, size, 1, buffer);
2108                         if (retval != ERROR_OK)
2109                                 return retval;
2110                         address += size;
2111                         count -= size;
2112                         buffer += size;
2113                 }
2114         }
2115
2116         /* Read the data with as large access size as possible. */
2117         for (; size > 0; size /= 2) {
2118                 uint32_t aligned = count - count % size;
2119                 if (aligned > 0) {
2120                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2121                         if (retval != ERROR_OK)
2122                                 return retval;
2123                         address += aligned;
2124                         count -= aligned;
2125                         buffer += aligned;
2126                 }
2127         }
2128
2129         return ERROR_OK;
2130 }
2131
2132 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
2133 {
2134         uint8_t *buffer;
2135         int retval;
2136         uint32_t i;
2137         uint32_t checksum = 0;
2138         if (!target_was_examined(target)) {
2139                 LOG_ERROR("Target not examined yet");
2140                 return ERROR_FAIL;
2141         }
2142
2143         retval = target->type->checksum_memory(target, address, size, &checksum);
2144         if (retval != ERROR_OK) {
2145                 buffer = malloc(size);
2146                 if (buffer == NULL) {
2147                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
2148                         return ERROR_COMMAND_SYNTAX_ERROR;
2149                 }
2150                 retval = target_read_buffer(target, address, size, buffer);
2151                 if (retval != ERROR_OK) {
2152                         free(buffer);
2153                         return retval;
2154                 }
2155
2156                 /* convert to target endianness */
2157                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2158                         uint32_t target_data;
2159                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2160                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2161                 }
2162
2163                 retval = image_calculate_checksum(buffer, size, &checksum);
2164                 free(buffer);
2165         }
2166
2167         *crc = checksum;
2168
2169         return retval;
2170 }
2171
2172 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
2173 {
2174         int retval;
2175         if (!target_was_examined(target)) {
2176                 LOG_ERROR("Target not examined yet");
2177                 return ERROR_FAIL;
2178         }
2179
2180         if (target->type->blank_check_memory == 0)
2181                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2182
2183         retval = target->type->blank_check_memory(target, address, size, blank);
2184
2185         return retval;
2186 }
2187
2188 int target_read_u64(struct target *target, uint64_t address, uint64_t *value)
2189 {
2190         uint8_t value_buf[8];
2191         if (!target_was_examined(target)) {
2192                 LOG_ERROR("Target not examined yet");
2193                 return ERROR_FAIL;
2194         }
2195
2196         int retval = target_read_memory(target, address, 8, 1, value_buf);
2197
2198         if (retval == ERROR_OK) {
2199                 *value = target_buffer_get_u64(target, value_buf);
2200                 LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
2201                                   address,
2202                                   *value);
2203         } else {
2204                 *value = 0x0;
2205                 LOG_DEBUG("address: 0x%" PRIx64 " failed",
2206                                   address);
2207         }
2208
2209         return retval;
2210 }
2211
2212 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
2213 {
2214         uint8_t value_buf[4];
2215         if (!target_was_examined(target)) {
2216                 LOG_ERROR("Target not examined yet");
2217                 return ERROR_FAIL;
2218         }
2219
2220         int retval = target_read_memory(target, address, 4, 1, value_buf);
2221
2222         if (retval == ERROR_OK) {
2223                 *value = target_buffer_get_u32(target, value_buf);
2224                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
2225                                   address,
2226                                   *value);
2227         } else {
2228                 *value = 0x0;
2229                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2230                                   address);
2231         }
2232
2233         return retval;
2234 }
2235
2236 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
2237 {
2238         uint8_t value_buf[2];
2239         if (!target_was_examined(target)) {
2240                 LOG_ERROR("Target not examined yet");
2241                 return ERROR_FAIL;
2242         }
2243
2244         int retval = target_read_memory(target, address, 2, 1, value_buf);
2245
2246         if (retval == ERROR_OK) {
2247                 *value = target_buffer_get_u16(target, value_buf);
2248                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
2249                                   address,
2250                                   *value);
2251         } else {
2252                 *value = 0x0;
2253                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2254                                   address);
2255         }
2256
2257         return retval;
2258 }
2259
2260 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
2261 {
2262         if (!target_was_examined(target)) {
2263                 LOG_ERROR("Target not examined yet");
2264                 return ERROR_FAIL;
2265         }
2266
2267         int retval = target_read_memory(target, address, 1, 1, value);
2268
2269         if (retval == ERROR_OK) {
2270                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2271                                   address,
2272                                   *value);
2273         } else {
2274                 *value = 0x0;
2275                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2276                                   address);
2277         }
2278
2279         return retval;
2280 }
2281
2282 int target_write_u64(struct target *target, uint64_t address, uint64_t value)
2283 {
2284         int retval;
2285         uint8_t value_buf[8];
2286         if (!target_was_examined(target)) {
2287                 LOG_ERROR("Target not examined yet");
2288                 return ERROR_FAIL;
2289         }
2290
2291         LOG_DEBUG("address: 0x%" PRIx64 ", value: 0x%16.16" PRIx64 "",
2292                           address,
2293                           value);
2294
2295         target_buffer_set_u64(target, value_buf, value);
2296         retval = target_write_memory(target, address, 8, 1, value_buf);
2297         if (retval != ERROR_OK)
2298                 LOG_DEBUG("failed: %i", retval);
2299
2300         return retval;
2301 }
2302
2303 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
2304 {
2305         int retval;
2306         uint8_t value_buf[4];
2307         if (!target_was_examined(target)) {
2308                 LOG_ERROR("Target not examined yet");
2309                 return ERROR_FAIL;
2310         }
2311
2312         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
2313                           address,
2314                           value);
2315
2316         target_buffer_set_u32(target, value_buf, value);
2317         retval = target_write_memory(target, address, 4, 1, value_buf);
2318         if (retval != ERROR_OK)
2319                 LOG_DEBUG("failed: %i", retval);
2320
2321         return retval;
2322 }
2323
2324 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
2325 {
2326         int retval;
2327         uint8_t value_buf[2];
2328         if (!target_was_examined(target)) {
2329                 LOG_ERROR("Target not examined yet");
2330                 return ERROR_FAIL;
2331         }
2332
2333         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2334                           address,
2335                           value);
2336
2337         target_buffer_set_u16(target, value_buf, value);
2338         retval = target_write_memory(target, address, 2, 1, value_buf);
2339         if (retval != ERROR_OK)
2340                 LOG_DEBUG("failed: %i", retval);
2341
2342         return retval;
2343 }
2344
2345 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2346 {
2347         int retval;
2348         if (!target_was_examined(target)) {
2349                 LOG_ERROR("Target not examined yet");
2350                 return ERROR_FAIL;
2351         }
2352
2353         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2354                           address, value);
2355
2356         retval = target_write_memory(target, address, 1, 1, &value);
2357         if (retval != ERROR_OK)
2358                 LOG_DEBUG("failed: %i", retval);
2359
2360         return retval;
2361 }
2362
2363 static int find_target(struct command_context *cmd_ctx, const char *name)
2364 {
2365         struct target *target = get_target(name);
2366         if (target == NULL) {
2367                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2368                 return ERROR_FAIL;
2369         }
2370         if (!target->tap->enabled) {
2371                 LOG_USER("Target: TAP %s is disabled, "
2372                          "can't be the current target\n",
2373                          target->tap->dotted_name);
2374                 return ERROR_FAIL;
2375         }
2376
2377         cmd_ctx->current_target = target->target_number;
2378         return ERROR_OK;
2379 }
2380
2381
2382 COMMAND_HANDLER(handle_targets_command)
2383 {
2384         int retval = ERROR_OK;
2385         if (CMD_ARGC == 1) {
2386                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2387                 if (retval == ERROR_OK) {
2388                         /* we're done! */
2389                         return retval;
2390                 }
2391         }
2392
2393         struct target *target = all_targets;
2394         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2395         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2396         while (target) {
2397                 const char *state;
2398                 char marker = ' ';
2399
2400                 if (target->tap->enabled)
2401                         state = target_state_name(target);
2402                 else
2403                         state = "tap-disabled";
2404
2405                 if (CMD_CTX->current_target == target->target_number)
2406                         marker = '*';
2407
2408                 /* keep columns lined up to match the headers above */
2409                 command_print(CMD_CTX,
2410                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2411                                 target->target_number,
2412                                 marker,
2413                                 target_name(target),
2414                                 target_type_name(target),
2415                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2416                                         target->endianness)->name,
2417                                 target->tap->dotted_name,
2418                                 state);
2419                 target = target->next;
2420         }
2421
2422         return retval;
2423 }
2424
2425 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2426
2427 static int powerDropout;
2428 static int srstAsserted;
2429
2430 static int runPowerRestore;
2431 static int runPowerDropout;
2432 static int runSrstAsserted;
2433 static int runSrstDeasserted;
2434
2435 static int sense_handler(void)
2436 {
2437         static int prevSrstAsserted;
2438         static int prevPowerdropout;
2439
2440         int retval = jtag_power_dropout(&powerDropout);
2441         if (retval != ERROR_OK)
2442                 return retval;
2443
2444         int powerRestored;
2445         powerRestored = prevPowerdropout && !powerDropout;
2446         if (powerRestored)
2447                 runPowerRestore = 1;
2448
2449         int64_t current = timeval_ms();
2450         static int64_t lastPower;
2451         bool waitMore = lastPower + 2000 > current;
2452         if (powerDropout && !waitMore) {
2453                 runPowerDropout = 1;
2454                 lastPower = current;
2455         }
2456
2457         retval = jtag_srst_asserted(&srstAsserted);
2458         if (retval != ERROR_OK)
2459                 return retval;
2460
2461         int srstDeasserted;
2462         srstDeasserted = prevSrstAsserted && !srstAsserted;
2463
2464         static int64_t lastSrst;
2465         waitMore = lastSrst + 2000 > current;
2466         if (srstDeasserted && !waitMore) {
2467                 runSrstDeasserted = 1;
2468                 lastSrst = current;
2469         }
2470
2471         if (!prevSrstAsserted && srstAsserted)
2472                 runSrstAsserted = 1;
2473
2474         prevSrstAsserted = srstAsserted;
2475         prevPowerdropout = powerDropout;
2476
2477         if (srstDeasserted || powerRestored) {
2478                 /* Other than logging the event we can't do anything here.
2479                  * Issuing a reset is a particularly bad idea as we might
2480                  * be inside a reset already.
2481                  */
2482         }
2483
2484         return ERROR_OK;
2485 }
2486
2487 /* process target state changes */
2488 static int handle_target(void *priv)
2489 {
2490         Jim_Interp *interp = (Jim_Interp *)priv;
2491         int retval = ERROR_OK;
2492
2493         if (!is_jtag_poll_safe()) {
2494                 /* polling is disabled currently */
2495                 return ERROR_OK;
2496         }
2497
2498         /* we do not want to recurse here... */
2499         static int recursive;
2500         if (!recursive) {
2501                 recursive = 1;
2502                 sense_handler();
2503                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2504                  * We need to avoid an infinite loop/recursion here and we do that by
2505                  * clearing the flags after running these events.
2506                  */
2507                 int did_something = 0;
2508                 if (runSrstAsserted) {
2509                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2510                         Jim_Eval(interp, "srst_asserted");
2511                         did_something = 1;
2512                 }
2513                 if (runSrstDeasserted) {
2514                         Jim_Eval(interp, "srst_deasserted");
2515                         did_something = 1;
2516                 }
2517                 if (runPowerDropout) {
2518                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2519                         Jim_Eval(interp, "power_dropout");
2520                         did_something = 1;
2521                 }
2522                 if (runPowerRestore) {
2523                         Jim_Eval(interp, "power_restore");
2524                         did_something = 1;
2525                 }
2526
2527                 if (did_something) {
2528                         /* clear detect flags */
2529                         sense_handler();
2530                 }
2531
2532                 /* clear action flags */
2533
2534                 runSrstAsserted = 0;
2535                 runSrstDeasserted = 0;
2536                 runPowerRestore = 0;
2537                 runPowerDropout = 0;
2538
2539                 recursive = 0;
2540         }
2541
2542         /* Poll targets for state changes unless that's globally disabled.
2543          * Skip targets that are currently disabled.
2544          */
2545         for (struct target *target = all_targets;
2546                         is_jtag_poll_safe() && target;
2547                         target = target->next) {
2548
2549                 if (!target_was_examined(target))
2550                         continue;
2551
2552                 if (!target->tap->enabled)
2553                         continue;
2554
2555                 if (target->backoff.times > target->backoff.count) {
2556                         /* do not poll this time as we failed previously */
2557                         target->backoff.count++;
2558                         continue;
2559                 }
2560                 target->backoff.count = 0;
2561
2562                 /* only poll target if we've got power and srst isn't asserted */
2563                 if (!powerDropout && !srstAsserted) {
2564                         /* polling may fail silently until the target has been examined */
2565                         retval = target_poll(target);
2566                         if (retval != ERROR_OK) {
2567                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2568                                 if (target->backoff.times * polling_interval < 5000) {
2569                                         target->backoff.times *= 2;
2570                                         target->backoff.times++;
2571                                 }
2572
2573                                 /* Tell GDB to halt the debugger. This allows the user to
2574                                  * run monitor commands to handle the situation.
2575                                  */
2576                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2577                         }
2578                         if (target->backoff.times > 0) {
2579                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2580                                 target_reset_examined(target);
2581                                 retval = target_examine_one(target);
2582                                 /* Target examination could have failed due to unstable connection,
2583                                  * but we set the examined flag anyway to repoll it later */
2584                                 if (retval != ERROR_OK) {
2585                                         target->examined = true;
2586                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2587                                                  target->backoff.times * polling_interval);
2588                                         return retval;
2589                                 }
2590                         }
2591
2592                         /* Since we succeeded, we reset backoff count */
2593                         target->backoff.times = 0;
2594                 }
2595         }
2596
2597         return retval;
2598 }
2599
2600 COMMAND_HANDLER(handle_reg_command)
2601 {
2602         struct target *target;
2603         struct reg *reg = NULL;
2604         unsigned count = 0;
2605         char *value;
2606
2607         LOG_DEBUG("-");
2608
2609         target = get_current_target(CMD_CTX);
2610
2611         /* list all available registers for the current target */
2612         if (CMD_ARGC == 0) {
2613                 struct reg_cache *cache = target->reg_cache;
2614
2615                 count = 0;
2616                 while (cache) {
2617                         unsigned i;
2618
2619                         command_print(CMD_CTX, "===== %s", cache->name);
2620
2621                         for (i = 0, reg = cache->reg_list;
2622                                         i < cache->num_regs;
2623                                         i++, reg++, count++) {
2624                                 /* only print cached values if they are valid */
2625                                 if (reg->valid) {
2626                                         value = buf_to_str(reg->value,
2627                                                         reg->size, 16);
2628                                         command_print(CMD_CTX,
2629                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2630                                                         count, reg->name,
2631                                                         reg->size, value,
2632                                                         reg->dirty
2633                                                                 ? " (dirty)"
2634                                                                 : "");
2635                                         free(value);
2636                                 } else {
2637                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2638                                                           count, reg->name,
2639                                                           reg->size) ;
2640                                 }
2641                         }
2642                         cache = cache->next;
2643                 }
2644
2645                 return ERROR_OK;
2646         }
2647
2648         /* access a single register by its ordinal number */
2649         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2650                 unsigned num;
2651                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2652
2653                 struct reg_cache *cache = target->reg_cache;
2654                 count = 0;
2655                 while (cache) {
2656                         unsigned i;
2657                         for (i = 0; i < cache->num_regs; i++) {
2658                                 if (count++ == num) {
2659                                         reg = &cache->reg_list[i];
2660                                         break;
2661                                 }
2662                         }
2663                         if (reg)
2664                                 break;
2665                         cache = cache->next;
2666                 }
2667
2668                 if (!reg) {
2669                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2670                                         "has only %i registers (0 - %i)", num, count, count - 1);
2671                         return ERROR_OK;
2672                 }
2673         } else {
2674                 /* access a single register by its name */
2675                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2676
2677                 if (!reg) {
2678                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2679                         return ERROR_OK;
2680                 }
2681         }
2682
2683         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2684
2685         /* display a register */
2686         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2687                         && (CMD_ARGV[1][0] <= '9')))) {
2688                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2689                         reg->valid = 0;
2690
2691                 if (reg->valid == 0)
2692                         reg->type->get(reg);
2693                 value = buf_to_str(reg->value, reg->size, 16);
2694                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2695                 free(value);
2696                 return ERROR_OK;
2697         }
2698
2699         /* set register value */
2700         if (CMD_ARGC == 2) {
2701                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2702                 if (buf == NULL)
2703                         return ERROR_FAIL;
2704                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2705
2706                 reg->type->set(reg, buf);
2707
2708                 value = buf_to_str(reg->value, reg->size, 16);
2709                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2710                 free(value);
2711
2712                 free(buf);
2713
2714                 return ERROR_OK;
2715         }
2716
2717         return ERROR_COMMAND_SYNTAX_ERROR;
2718 }
2719
2720 COMMAND_HANDLER(handle_poll_command)
2721 {
2722         int retval = ERROR_OK;
2723         struct target *target = get_current_target(CMD_CTX);
2724
2725         if (CMD_ARGC == 0) {
2726                 command_print(CMD_CTX, "background polling: %s",
2727                                 jtag_poll_get_enabled() ? "on" : "off");
2728                 command_print(CMD_CTX, "TAP: %s (%s)",
2729                                 target->tap->dotted_name,
2730                                 target->tap->enabled ? "enabled" : "disabled");
2731                 if (!target->tap->enabled)
2732                         return ERROR_OK;
2733                 retval = target_poll(target);
2734                 if (retval != ERROR_OK)
2735                         return retval;
2736                 retval = target_arch_state(target);
2737                 if (retval != ERROR_OK)
2738                         return retval;
2739         } else if (CMD_ARGC == 1) {
2740                 bool enable;
2741                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2742                 jtag_poll_set_enabled(enable);
2743         } else
2744                 return ERROR_COMMAND_SYNTAX_ERROR;
2745
2746         return retval;
2747 }
2748
2749 COMMAND_HANDLER(handle_wait_halt_command)
2750 {
2751         if (CMD_ARGC > 1)
2752                 return ERROR_COMMAND_SYNTAX_ERROR;
2753
2754         unsigned ms = DEFAULT_HALT_TIMEOUT;
2755         if (1 == CMD_ARGC) {
2756                 int retval = parse_uint(CMD_ARGV[0], &ms);
2757                 if (ERROR_OK != retval)
2758                         return ERROR_COMMAND_SYNTAX_ERROR;
2759         }
2760
2761         struct target *target = get_current_target(CMD_CTX);
2762         return target_wait_state(target, TARGET_HALTED, ms);
2763 }
2764
2765 /* wait for target state to change. The trick here is to have a low
2766  * latency for short waits and not to suck up all the CPU time
2767  * on longer waits.
2768  *
2769  * After 500ms, keep_alive() is invoked
2770  */
2771 int target_wait_state(struct target *target, enum target_state state, int ms)
2772 {
2773         int retval;
2774         int64_t then = 0, cur;
2775         bool once = true;
2776
2777         for (;;) {
2778                 retval = target_poll(target);
2779                 if (retval != ERROR_OK)
2780                         return retval;
2781                 if (target->state == state)
2782                         break;
2783                 cur = timeval_ms();
2784                 if (once) {
2785                         once = false;
2786                         then = timeval_ms();
2787                         LOG_DEBUG("waiting for target %s...",
2788                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2789                 }
2790
2791                 if (cur-then > 500)
2792                         keep_alive();
2793
2794                 if ((cur-then) > ms) {
2795                         LOG_ERROR("timed out while waiting for target %s",
2796                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2797                         return ERROR_FAIL;
2798                 }
2799         }
2800
2801         return ERROR_OK;
2802 }
2803
2804 COMMAND_HANDLER(handle_halt_command)
2805 {
2806         LOG_DEBUG("-");
2807
2808         struct target *target = get_current_target(CMD_CTX);
2809         int retval = target_halt(target);
2810         if (ERROR_OK != retval)
2811                 return retval;
2812
2813         if (CMD_ARGC == 1) {
2814                 unsigned wait_local;
2815                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2816                 if (ERROR_OK != retval)
2817                         return ERROR_COMMAND_SYNTAX_ERROR;
2818                 if (!wait_local)
2819                         return ERROR_OK;
2820         }
2821
2822         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2823 }
2824
2825 COMMAND_HANDLER(handle_soft_reset_halt_command)
2826 {
2827         struct target *target = get_current_target(CMD_CTX);
2828
2829         LOG_USER("requesting target halt and executing a soft reset");
2830
2831         target_soft_reset_halt(target);
2832
2833         return ERROR_OK;
2834 }
2835
2836 COMMAND_HANDLER(handle_reset_command)
2837 {
2838         if (CMD_ARGC > 1)
2839                 return ERROR_COMMAND_SYNTAX_ERROR;
2840
2841         enum target_reset_mode reset_mode = RESET_RUN;
2842         if (CMD_ARGC == 1) {
2843                 const Jim_Nvp *n;
2844                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2845                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2846                         return ERROR_COMMAND_SYNTAX_ERROR;
2847                 reset_mode = n->value;
2848         }
2849
2850         /* reset *all* targets */
2851         return target_process_reset(CMD_CTX, reset_mode);
2852 }
2853
2854
2855 COMMAND_HANDLER(handle_resume_command)
2856 {
2857         int current = 1;
2858         if (CMD_ARGC > 1)
2859                 return ERROR_COMMAND_SYNTAX_ERROR;
2860
2861         struct target *target = get_current_target(CMD_CTX);
2862
2863         /* with no CMD_ARGV, resume from current pc, addr = 0,
2864          * with one arguments, addr = CMD_ARGV[0],
2865          * handle breakpoints, not debugging */
2866         uint32_t addr = 0;
2867         if (CMD_ARGC == 1) {
2868                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2869                 current = 0;
2870         }
2871
2872         return target_resume(target, current, addr, 1, 0);
2873 }
2874
2875 COMMAND_HANDLER(handle_step_command)
2876 {
2877         if (CMD_ARGC > 1)
2878                 return ERROR_COMMAND_SYNTAX_ERROR;
2879
2880         LOG_DEBUG("-");
2881
2882         /* with no CMD_ARGV, step from current pc, addr = 0,
2883          * with one argument addr = CMD_ARGV[0],
2884          * handle breakpoints, debugging */
2885         uint32_t addr = 0;
2886         int current_pc = 1;
2887         if (CMD_ARGC == 1) {
2888                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2889                 current_pc = 0;
2890         }
2891
2892         struct target *target = get_current_target(CMD_CTX);
2893
2894         return target->type->step(target, current_pc, addr, 1);
2895 }
2896
2897 static void handle_md_output(struct command_context *cmd_ctx,
2898                 struct target *target, uint32_t address, unsigned size,
2899                 unsigned count, const uint8_t *buffer)
2900 {
2901         const unsigned line_bytecnt = 32;
2902         unsigned line_modulo = line_bytecnt / size;
2903
2904         char output[line_bytecnt * 4 + 1];
2905         unsigned output_len = 0;
2906
2907         const char *value_fmt;
2908         switch (size) {
2909         case 4:
2910                 value_fmt = "%8.8x ";
2911                 break;
2912         case 2:
2913                 value_fmt = "%4.4x ";
2914                 break;
2915         case 1:
2916                 value_fmt = "%2.2x ";
2917                 break;
2918         default:
2919                 /* "can't happen", caller checked */
2920                 LOG_ERROR("invalid memory read size: %u", size);
2921                 return;
2922         }
2923
2924         for (unsigned i = 0; i < count; i++) {
2925                 if (i % line_modulo == 0) {
2926                         output_len += snprintf(output + output_len,
2927                                         sizeof(output) - output_len,
2928                                         "0x%8.8x: ",
2929                                         (unsigned)(address + (i*size)));
2930                 }
2931
2932                 uint32_t value = 0;
2933                 const uint8_t *value_ptr = buffer + i * size;
2934                 switch (size) {
2935                 case 4:
2936                         value = target_buffer_get_u32(target, value_ptr);
2937                         break;
2938                 case 2:
2939                         value = target_buffer_get_u16(target, value_ptr);
2940                         break;
2941                 case 1:
2942                         value = *value_ptr;
2943                 }
2944                 output_len += snprintf(output + output_len,
2945                                 sizeof(output) - output_len,
2946                                 value_fmt, value);
2947
2948                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2949                         command_print(cmd_ctx, "%s", output);
2950                         output_len = 0;
2951                 }
2952         }
2953 }
2954
2955 COMMAND_HANDLER(handle_md_command)
2956 {
2957         if (CMD_ARGC < 1)
2958                 return ERROR_COMMAND_SYNTAX_ERROR;
2959
2960         unsigned size = 0;
2961         switch (CMD_NAME[2]) {
2962         case 'w':
2963                 size = 4;
2964                 break;
2965         case 'h':
2966                 size = 2;
2967                 break;
2968         case 'b':
2969                 size = 1;
2970                 break;
2971         default:
2972                 return ERROR_COMMAND_SYNTAX_ERROR;
2973         }
2974
2975         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2976         int (*fn)(struct target *target,
2977                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2978         if (physical) {
2979                 CMD_ARGC--;
2980                 CMD_ARGV++;
2981                 fn = target_read_phys_memory;
2982         } else
2983                 fn = target_read_memory;
2984         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2985                 return ERROR_COMMAND_SYNTAX_ERROR;
2986
2987         uint32_t address;
2988         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2989
2990         unsigned count = 1;
2991         if (CMD_ARGC == 2)
2992                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2993
2994         uint8_t *buffer = calloc(count, size);
2995
2996         struct target *target = get_current_target(CMD_CTX);
2997         int retval = fn(target, address, size, count, buffer);
2998         if (ERROR_OK == retval)
2999                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3000
3001         free(buffer);
3002
3003         return retval;
3004 }
3005
3006 typedef int (*target_write_fn)(struct target *target,
3007                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3008
3009 static int target_fill_mem(struct target *target,
3010                 uint32_t address,
3011                 target_write_fn fn,
3012                 unsigned data_size,
3013                 /* value */
3014                 uint32_t b,
3015                 /* count */
3016                 unsigned c)
3017 {
3018         /* We have to write in reasonably large chunks to be able
3019          * to fill large memory areas with any sane speed */
3020         const unsigned chunk_size = 16384;
3021         uint8_t *target_buf = malloc(chunk_size * data_size);
3022         if (target_buf == NULL) {
3023                 LOG_ERROR("Out of memory");
3024                 return ERROR_FAIL;
3025         }
3026
3027         for (unsigned i = 0; i < chunk_size; i++) {
3028                 switch (data_size) {
3029                 case 4:
3030                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3031                         break;
3032                 case 2:
3033                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3034                         break;
3035                 case 1:
3036                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3037                         break;
3038                 default:
3039                         exit(-1);
3040                 }
3041         }
3042
3043         int retval = ERROR_OK;
3044
3045         for (unsigned x = 0; x < c; x += chunk_size) {
3046                 unsigned current;
3047                 current = c - x;
3048                 if (current > chunk_size)
3049                         current = chunk_size;
3050                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3051                 if (retval != ERROR_OK)
3052                         break;
3053                 /* avoid GDB timeouts */
3054                 keep_alive();
3055         }
3056         free(target_buf);
3057
3058         return retval;
3059 }
3060
3061
3062 COMMAND_HANDLER(handle_mw_command)
3063 {
3064         if (CMD_ARGC < 2)
3065                 return ERROR_COMMAND_SYNTAX_ERROR;
3066         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3067         target_write_fn fn;
3068         if (physical) {
3069                 CMD_ARGC--;
3070                 CMD_ARGV++;
3071                 fn = target_write_phys_memory;
3072         } else
3073                 fn = target_write_memory;
3074         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3075                 return ERROR_COMMAND_SYNTAX_ERROR;
3076
3077         uint32_t address;
3078         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
3079
3080         uint32_t value;
3081         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
3082
3083         unsigned count = 1;
3084         if (CMD_ARGC == 3)
3085                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3086
3087         struct target *target = get_current_target(CMD_CTX);
3088         unsigned wordsize;
3089         switch (CMD_NAME[2]) {
3090                 case 'w':
3091                         wordsize = 4;
3092                         break;
3093                 case 'h':
3094                         wordsize = 2;
3095                         break;
3096                 case 'b':
3097                         wordsize = 1;
3098                         break;
3099                 default:
3100                         return ERROR_COMMAND_SYNTAX_ERROR;
3101         }
3102
3103         return target_fill_mem(target, address, fn, wordsize, value, count);
3104 }
3105
3106 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3107                 uint32_t *min_address, uint32_t *max_address)
3108 {
3109         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3110                 return ERROR_COMMAND_SYNTAX_ERROR;
3111
3112         /* a base address isn't always necessary,
3113          * default to 0x0 (i.e. don't relocate) */
3114         if (CMD_ARGC >= 2) {
3115                 uint32_t addr;
3116                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
3117                 image->base_address = addr;
3118                 image->base_address_set = 1;
3119         } else
3120                 image->base_address_set = 0;
3121
3122         image->start_address_set = 0;
3123
3124         if (CMD_ARGC >= 4)
3125                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
3126         if (CMD_ARGC == 5) {
3127                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
3128                 /* use size (given) to find max (required) */
3129                 *max_address += *min_address;
3130         }
3131
3132         if (*min_address > *max_address)
3133                 return ERROR_COMMAND_SYNTAX_ERROR;
3134
3135         return ERROR_OK;
3136 }
3137
3138 COMMAND_HANDLER(handle_load_image_command)
3139 {
3140         uint8_t *buffer;
3141         size_t buf_cnt;
3142         uint32_t image_size;
3143         uint32_t min_address = 0;
3144         uint32_t max_address = 0xffffffff;
3145         int i;
3146         struct image image;
3147
3148         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3149                         &image, &min_address, &max_address);
3150         if (ERROR_OK != retval)
3151                 return retval;
3152
3153         struct target *target = get_current_target(CMD_CTX);
3154
3155         struct duration bench;
3156         duration_start(&bench);
3157
3158         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3159                 return ERROR_OK;
3160
3161         image_size = 0x0;
3162         retval = ERROR_OK;
3163         for (i = 0; i < image.num_sections; i++) {
3164                 buffer = malloc(image.sections[i].size);
3165                 if (buffer == NULL) {
3166                         command_print(CMD_CTX,
3167                                                   "error allocating buffer for section (%d bytes)",
3168                                                   (int)(image.sections[i].size));
3169                         break;
3170                 }
3171
3172                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3173                 if (retval != ERROR_OK) {
3174                         free(buffer);
3175                         break;
3176                 }
3177
3178                 uint32_t offset = 0;
3179                 uint32_t length = buf_cnt;
3180
3181                 /* DANGER!!! beware of unsigned comparision here!!! */
3182
3183                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3184                                 (image.sections[i].base_address < max_address)) {
3185
3186                         if (image.sections[i].base_address < min_address) {
3187                                 /* clip addresses below */
3188                                 offset += min_address-image.sections[i].base_address;
3189                                 length -= offset;
3190                         }
3191
3192                         if (image.sections[i].base_address + buf_cnt > max_address)
3193                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3194
3195                         retval = target_write_buffer(target,
3196                                         image.sections[i].base_address + offset, length, buffer + offset);
3197                         if (retval != ERROR_OK) {
3198                                 free(buffer);
3199                                 break;
3200                         }
3201                         image_size += length;
3202                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
3203                                         (unsigned int)length,
3204                                         image.sections[i].base_address + offset);
3205                 }
3206
3207                 free(buffer);
3208         }
3209
3210         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3211                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3212                                 "in %fs (%0.3f KiB/s)", image_size,
3213                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3214         }
3215
3216         image_close(&image);
3217
3218         return retval;
3219
3220 }
3221
3222 COMMAND_HANDLER(handle_dump_image_command)
3223 {
3224         struct fileio *fileio;
3225         uint8_t *buffer;
3226         int retval, retvaltemp;
3227         uint32_t address, size;
3228         struct duration bench;
3229         struct target *target = get_current_target(CMD_CTX);
3230
3231         if (CMD_ARGC != 3)
3232                 return ERROR_COMMAND_SYNTAX_ERROR;
3233
3234         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
3235         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
3236
3237         uint32_t buf_size = (size > 4096) ? 4096 : size;
3238         buffer = malloc(buf_size);
3239         if (!buffer)
3240                 return ERROR_FAIL;
3241
3242         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3243         if (retval != ERROR_OK) {
3244                 free(buffer);
3245                 return retval;
3246         }
3247
3248         duration_start(&bench);
3249
3250         while (size > 0) {
3251                 size_t size_written;
3252                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3253                 retval = target_read_buffer(target, address, this_run_size, buffer);
3254                 if (retval != ERROR_OK)
3255                         break;
3256
3257                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3258                 if (retval != ERROR_OK)
3259                         break;
3260
3261                 size -= this_run_size;
3262                 address += this_run_size;
3263         }
3264
3265         free(buffer);
3266
3267         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3268                 size_t filesize;
3269                 retval = fileio_size(fileio, &filesize);
3270                 if (retval != ERROR_OK)
3271                         return retval;
3272                 command_print(CMD_CTX,
3273                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3274                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3275         }
3276
3277         retvaltemp = fileio_close(fileio);
3278         if (retvaltemp != ERROR_OK)
3279                 return retvaltemp;
3280
3281         return retval;
3282 }
3283
3284 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
3285 {
3286         uint8_t *buffer;
3287         size_t buf_cnt;
3288         uint32_t image_size;
3289         int i;
3290         int retval;
3291         uint32_t checksum = 0;
3292         uint32_t mem_checksum = 0;
3293
3294         struct image image;
3295
3296         struct target *target = get_current_target(CMD_CTX);
3297
3298         if (CMD_ARGC < 1)
3299                 return ERROR_COMMAND_SYNTAX_ERROR;
3300
3301         if (!target) {
3302                 LOG_ERROR("no target selected");
3303                 return ERROR_FAIL;
3304         }
3305
3306         struct duration bench;
3307         duration_start(&bench);
3308
3309         if (CMD_ARGC >= 2) {
3310                 uint32_t addr;
3311                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
3312                 image.base_address = addr;
3313                 image.base_address_set = 1;
3314         } else {
3315                 image.base_address_set = 0;
3316                 image.base_address = 0x0;
3317         }
3318
3319         image.start_address_set = 0;
3320
3321         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3322         if (retval != ERROR_OK)
3323                 return retval;
3324
3325         image_size = 0x0;
3326         int diffs = 0;
3327         retval = ERROR_OK;
3328         for (i = 0; i < image.num_sections; i++) {
3329                 buffer = malloc(image.sections[i].size);
3330                 if (buffer == NULL) {
3331                         command_print(CMD_CTX,
3332                                         "error allocating buffer for section (%d bytes)",
3333                                         (int)(image.sections[i].size));
3334                         break;
3335                 }
3336                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3337                 if (retval != ERROR_OK) {
3338                         free(buffer);
3339                         break;
3340                 }
3341
3342                 if (verify) {
3343                         /* calculate checksum of image */
3344                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3345                         if (retval != ERROR_OK) {
3346                                 free(buffer);
3347                                 break;
3348                         }
3349
3350                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3351                         if (retval != ERROR_OK) {
3352                                 free(buffer);
3353                                 break;
3354                         }
3355
3356                         if (checksum != mem_checksum) {
3357                                 /* failed crc checksum, fall back to a binary compare */
3358                                 uint8_t *data;
3359
3360                                 if (diffs == 0)
3361                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3362
3363                                 data = malloc(buf_cnt);
3364
3365                                 /* Can we use 32bit word accesses? */
3366                                 int size = 1;
3367                                 int count = buf_cnt;
3368                                 if ((count % 4) == 0) {
3369                                         size *= 4;
3370                                         count /= 4;
3371                                 }
3372                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3373                                 if (retval == ERROR_OK) {
3374                                         uint32_t t;
3375                                         for (t = 0; t < buf_cnt; t++) {
3376                                                 if (data[t] != buffer[t]) {
3377                                                         command_print(CMD_CTX,
3378                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3379                                                                                   diffs,
3380                                                                                   (unsigned)(t + image.sections[i].base_address),
3381                                                                                   data[t],
3382                                                                                   buffer[t]);
3383                                                         if (diffs++ >= 127) {
3384                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3385                                                                 free(data);
3386                                                                 free(buffer);
3387                                                                 goto done;
3388                                                         }
3389                                                 }
3390                                                 keep_alive();
3391                                         }
3392                                 }
3393                                 free(data);
3394                         }
3395                 } else {
3396                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3397                                                   image.sections[i].base_address,
3398                                                   buf_cnt);
3399                 }
3400
3401                 free(buffer);
3402                 image_size += buf_cnt;
3403         }
3404         if (diffs > 0)
3405                 command_print(CMD_CTX, "No more differences found.");
3406 done:
3407         if (diffs > 0)
3408                 retval = ERROR_FAIL;
3409         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3410                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3411                                 "in %fs (%0.3f KiB/s)", image_size,
3412                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3413         }
3414
3415         image_close(&image);
3416
3417         return retval;
3418 }
3419
3420 COMMAND_HANDLER(handle_verify_image_command)
3421 {
3422         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3423 }
3424
3425 COMMAND_HANDLER(handle_test_image_command)
3426 {
3427         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3428 }
3429
3430 static int handle_bp_command_list(struct command_context *cmd_ctx)
3431 {
3432         struct target *target = get_current_target(cmd_ctx);
3433         struct breakpoint *breakpoint = target->breakpoints;
3434         while (breakpoint) {
3435                 if (breakpoint->type == BKPT_SOFT) {
3436                         char *buf = buf_to_str(breakpoint->orig_instr,
3437                                         breakpoint->length, 16);
3438                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3439                                         breakpoint->address,
3440                                         breakpoint->length,
3441                                         breakpoint->set, buf);
3442                         free(buf);
3443                 } else {
3444                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3445                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3446                                                         breakpoint->asid,
3447                                                         breakpoint->length, breakpoint->set);
3448                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3449                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3450                                                         breakpoint->address,
3451                                                         breakpoint->length, breakpoint->set);
3452                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3453                                                         breakpoint->asid);
3454                         } else
3455                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3456                                                         breakpoint->address,
3457                                                         breakpoint->length, breakpoint->set);
3458                 }
3459
3460                 breakpoint = breakpoint->next;
3461         }
3462         return ERROR_OK;
3463 }
3464
3465 static int handle_bp_command_set(struct command_context *cmd_ctx,
3466                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3467 {
3468         struct target *target = get_current_target(cmd_ctx);
3469         int retval;
3470
3471         if (asid == 0) {
3472                 retval = breakpoint_add(target, addr, length, hw);
3473                 if (ERROR_OK == retval)
3474                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3475                 else {
3476                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3477                         return retval;
3478                 }
3479         } else if (addr == 0) {
3480                 if (target->type->add_context_breakpoint == NULL) {
3481                         LOG_WARNING("Context breakpoint not available");
3482                         return ERROR_OK;
3483                 }
3484                 retval = context_breakpoint_add(target, asid, length, hw);
3485                 if (ERROR_OK == retval)
3486                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3487                 else {
3488                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3489                         return retval;
3490                 }
3491         } else {
3492                 if (target->type->add_hybrid_breakpoint == NULL) {
3493                         LOG_WARNING("Hybrid breakpoint not available");
3494                         return ERROR_OK;
3495                 }
3496                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3497                 if (ERROR_OK == retval)
3498                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3499                 else {
3500                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3501                         return retval;
3502                 }
3503         }
3504         return ERROR_OK;
3505 }
3506
3507 COMMAND_HANDLER(handle_bp_command)
3508 {
3509         uint32_t addr;
3510         uint32_t asid;
3511         uint32_t length;
3512         int hw = BKPT_SOFT;
3513
3514         switch (CMD_ARGC) {
3515                 case 0:
3516                         return handle_bp_command_list(CMD_CTX);
3517
3518                 case 2:
3519                         asid = 0;
3520                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3521                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3522                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3523
3524                 case 3:
3525                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3526                                 hw = BKPT_HARD;
3527                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3528
3529                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3530
3531                                 asid = 0;
3532                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3533                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3534                                 hw = BKPT_HARD;
3535                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3536                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3537                                 addr = 0;
3538                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3539                         }
3540
3541                 case 4:
3542                         hw = BKPT_HARD;
3543                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3544                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3545                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3546                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3547
3548                 default:
3549                         return ERROR_COMMAND_SYNTAX_ERROR;
3550         }
3551 }
3552
3553 COMMAND_HANDLER(handle_rbp_command)
3554 {
3555         if (CMD_ARGC != 1)
3556                 return ERROR_COMMAND_SYNTAX_ERROR;
3557
3558         uint32_t addr;
3559         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3560
3561         struct target *target = get_current_target(CMD_CTX);
3562         breakpoint_remove(target, addr);
3563
3564         return ERROR_OK;
3565 }
3566
3567 COMMAND_HANDLER(handle_wp_command)
3568 {
3569         struct target *target = get_current_target(CMD_CTX);
3570
3571         if (CMD_ARGC == 0) {
3572                 struct watchpoint *watchpoint = target->watchpoints;
3573
3574                 while (watchpoint) {
3575                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3576                                         ", len: 0x%8.8" PRIx32
3577                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3578                                         ", mask: 0x%8.8" PRIx32,
3579                                         watchpoint->address,
3580                                         watchpoint->length,
3581                                         (int)watchpoint->rw,
3582                                         watchpoint->value,
3583                                         watchpoint->mask);
3584                         watchpoint = watchpoint->next;
3585                 }
3586                 return ERROR_OK;
3587         }
3588
3589         enum watchpoint_rw type = WPT_ACCESS;
3590         uint32_t addr = 0;
3591         uint32_t length = 0;
3592         uint32_t data_value = 0x0;
3593         uint32_t data_mask = 0xffffffff;
3594
3595         switch (CMD_ARGC) {
3596         case 5:
3597                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3598                 /* fall through */
3599         case 4:
3600                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3601                 /* fall through */
3602         case 3:
3603                 switch (CMD_ARGV[2][0]) {
3604                 case 'r':
3605                         type = WPT_READ;
3606                         break;
3607                 case 'w':
3608                         type = WPT_WRITE;
3609                         break;
3610                 case 'a':
3611                         type = WPT_ACCESS;
3612                         break;
3613                 default:
3614                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3615                         return ERROR_COMMAND_SYNTAX_ERROR;
3616                 }
3617                 /* fall through */
3618         case 2:
3619                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3620                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3621                 break;
3622
3623         default:
3624                 return ERROR_COMMAND_SYNTAX_ERROR;
3625         }
3626
3627         int retval = watchpoint_add(target, addr, length, type,
3628                         data_value, data_mask);
3629         if (ERROR_OK != retval)
3630                 LOG_ERROR("Failure setting watchpoints");
3631
3632         return retval;
3633 }
3634
3635 COMMAND_HANDLER(handle_rwp_command)
3636 {
3637         if (CMD_ARGC != 1)
3638                 return ERROR_COMMAND_SYNTAX_ERROR;
3639
3640         uint32_t addr;
3641         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3642
3643         struct target *target = get_current_target(CMD_CTX);
3644         watchpoint_remove(target, addr);
3645
3646         return ERROR_OK;
3647 }
3648
3649 /**
3650  * Translate a virtual address to a physical address.
3651  *
3652  * The low-level target implementation must have logged a detailed error
3653  * which is forwarded to telnet/GDB session.
3654  */
3655 COMMAND_HANDLER(handle_virt2phys_command)
3656 {
3657         if (CMD_ARGC != 1)
3658                 return ERROR_COMMAND_SYNTAX_ERROR;
3659
3660         uint32_t va;
3661         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3662         uint32_t pa;
3663
3664         struct target *target = get_current_target(CMD_CTX);
3665         int retval = target->type->virt2phys(target, va, &pa);
3666         if (retval == ERROR_OK)
3667                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3668
3669         return retval;
3670 }
3671
3672 static void writeData(FILE *f, const void *data, size_t len)
3673 {
3674         size_t written = fwrite(data, 1, len, f);
3675         if (written != len)
3676                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3677 }
3678
3679 static void writeLong(FILE *f, int l, struct target *target)
3680 {
3681         uint8_t val[4];
3682
3683         target_buffer_set_u32(target, val, l);
3684         writeData(f, val, 4);
3685 }
3686
3687 static void writeString(FILE *f, char *s)
3688 {
3689         writeData(f, s, strlen(s));
3690 }
3691
3692 typedef unsigned char UNIT[2];  /* unit of profiling */
3693
3694 /* Dump a gmon.out histogram file. */
3695 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3696                         uint32_t start_address, uint32_t end_address, struct target *target)
3697 {
3698         uint32_t i;
3699         FILE *f = fopen(filename, "w");
3700         if (f == NULL)
3701                 return;
3702         writeString(f, "gmon");
3703         writeLong(f, 0x00000001, target); /* Version */
3704         writeLong(f, 0, target); /* padding */
3705         writeLong(f, 0, target); /* padding */
3706         writeLong(f, 0, target); /* padding */
3707
3708         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3709         writeData(f, &zero, 1);
3710
3711         /* figure out bucket size */
3712         uint32_t min;
3713         uint32_t max;
3714         if (with_range) {
3715                 min = start_address;
3716                 max = end_address;
3717         } else {
3718                 min = samples[0];
3719                 max = samples[0];
3720                 for (i = 0; i < sampleNum; i++) {
3721                         if (min > samples[i])
3722                                 min = samples[i];
3723                         if (max < samples[i])
3724                                 max = samples[i];
3725                 }
3726
3727                 /* max should be (largest sample + 1)
3728                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3729                 max++;
3730         }
3731
3732         int addressSpace = max - min;
3733         assert(addressSpace >= 2);
3734
3735         /* FIXME: What is the reasonable number of buckets?
3736          * The profiling result will be more accurate if there are enough buckets. */
3737         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3738         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3739         if (numBuckets > maxBuckets)
3740                 numBuckets = maxBuckets;
3741         int *buckets = malloc(sizeof(int) * numBuckets);
3742         if (buckets == NULL) {
3743                 fclose(f);
3744                 return;
3745         }
3746         memset(buckets, 0, sizeof(int) * numBuckets);
3747         for (i = 0; i < sampleNum; i++) {
3748                 uint32_t address = samples[i];
3749
3750                 if ((address < min) || (max <= address))
3751                         continue;
3752
3753                 long long a = address - min;
3754                 long long b = numBuckets;
3755                 long long c = addressSpace;
3756                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3757                 buckets[index_t]++;
3758         }
3759
3760         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3761         writeLong(f, min, target);                      /* low_pc */
3762         writeLong(f, max, target);                      /* high_pc */
3763         writeLong(f, numBuckets, target);       /* # of buckets */
3764         writeLong(f, 100, target);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3765         writeString(f, "seconds");
3766         for (i = 0; i < (15-strlen("seconds")); i++)
3767                 writeData(f, &zero, 1);
3768         writeString(f, "s");
3769
3770         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3771
3772         char *data = malloc(2 * numBuckets);
3773         if (data != NULL) {
3774                 for (i = 0; i < numBuckets; i++) {
3775                         int val;
3776                         val = buckets[i];
3777                         if (val > 65535)
3778                                 val = 65535;
3779                         data[i * 2] = val&0xff;
3780                         data[i * 2 + 1] = (val >> 8) & 0xff;
3781                 }
3782                 free(buckets);
3783                 writeData(f, data, numBuckets * 2);
3784                 free(data);
3785         } else
3786                 free(buckets);
3787
3788         fclose(f);
3789 }
3790
3791 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3792  * which will be used as a random sampling of PC */
3793 COMMAND_HANDLER(handle_profile_command)
3794 {
3795         struct target *target = get_current_target(CMD_CTX);
3796
3797         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
3798                 return ERROR_COMMAND_SYNTAX_ERROR;
3799
3800         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
3801         uint32_t offset;
3802         uint32_t num_of_samples;
3803         int retval = ERROR_OK;
3804
3805         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
3806
3807         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
3808         if (samples == NULL) {
3809                 LOG_ERROR("No memory to store samples.");
3810                 return ERROR_FAIL;
3811         }
3812
3813         /**
3814          * Some cores let us sample the PC without the
3815          * annoying halt/resume step; for example, ARMv7 PCSR.
3816          * Provide a way to use that more efficient mechanism.
3817          */
3818         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
3819                                 &num_of_samples, offset);
3820         if (retval != ERROR_OK) {
3821                 free(samples);
3822                 return retval;
3823         }
3824
3825         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
3826
3827         retval = target_poll(target);
3828         if (retval != ERROR_OK) {
3829                 free(samples);
3830                 return retval;
3831         }
3832         if (target->state == TARGET_RUNNING) {
3833                 retval = target_halt(target);
3834                 if (retval != ERROR_OK) {
3835                         free(samples);
3836                         return retval;
3837                 }
3838         }
3839
3840         retval = target_poll(target);
3841         if (retval != ERROR_OK) {
3842                 free(samples);
3843                 return retval;
3844         }
3845
3846         uint32_t start_address = 0;
3847         uint32_t end_address = 0;
3848         bool with_range = false;
3849         if (CMD_ARGC == 4) {
3850                 with_range = true;
3851                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
3852                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
3853         }
3854
3855         write_gmon(samples, num_of_samples, CMD_ARGV[1],
3856                    with_range, start_address, end_address, target);
3857         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3858
3859         free(samples);
3860         return retval;
3861 }
3862
3863 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3864 {
3865         char *namebuf;
3866         Jim_Obj *nameObjPtr, *valObjPtr;
3867         int result;
3868
3869         namebuf = alloc_printf("%s(%d)", varname, idx);
3870         if (!namebuf)
3871                 return JIM_ERR;
3872
3873         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3874         valObjPtr = Jim_NewIntObj(interp, val);
3875         if (!nameObjPtr || !valObjPtr) {
3876                 free(namebuf);
3877                 return JIM_ERR;
3878         }
3879
3880         Jim_IncrRefCount(nameObjPtr);
3881         Jim_IncrRefCount(valObjPtr);
3882         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3883         Jim_DecrRefCount(interp, nameObjPtr);
3884         Jim_DecrRefCount(interp, valObjPtr);
3885         free(namebuf);
3886         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3887         return result;
3888 }
3889
3890 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3891 {
3892         struct command_context *context;
3893         struct target *target;
3894
3895         context = current_command_context(interp);
3896         assert(context != NULL);
3897
3898         target = get_current_target(context);
3899         if (target == NULL) {
3900                 LOG_ERROR("mem2array: no current target");
3901                 return JIM_ERR;
3902         }
3903
3904         return target_mem2array(interp, target, argc - 1, argv + 1);
3905 }
3906
3907 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3908 {
3909         long l;
3910         uint32_t width;
3911         int len;
3912         uint32_t addr;
3913         uint32_t count;
3914         uint32_t v;
3915         const char *varname;
3916         const char *phys;
3917         bool is_phys;
3918         int  n, e, retval;
3919         uint32_t i;
3920
3921         /* argv[1] = name of array to receive the data
3922          * argv[2] = desired width
3923          * argv[3] = memory address
3924          * argv[4] = count of times to read
3925          */
3926         if (argc < 4 || argc > 5) {
3927                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems [phys]");
3928                 return JIM_ERR;
3929         }
3930         varname = Jim_GetString(argv[0], &len);
3931         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3932
3933         e = Jim_GetLong(interp, argv[1], &l);
3934         width = l;
3935         if (e != JIM_OK)
3936                 return e;
3937
3938         e = Jim_GetLong(interp, argv[2], &l);
3939         addr = l;
3940         if (e != JIM_OK)
3941                 return e;
3942         e = Jim_GetLong(interp, argv[3], &l);
3943         len = l;
3944         if (e != JIM_OK)
3945                 return e;
3946         is_phys = false;
3947         if (argc > 4) {
3948                 phys = Jim_GetString(argv[4], &n);
3949                 if (!strncmp(phys, "phys", n))
3950                         is_phys = true;
3951                 else
3952                         return JIM_ERR;
3953         }
3954         switch (width) {
3955                 case 8:
3956                         width = 1;
3957                         break;
3958                 case 16:
3959                         width = 2;
3960                         break;
3961                 case 32:
3962                         width = 4;
3963                         break;
3964                 default:
3965                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3966                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3967                         return JIM_ERR;
3968         }
3969         if (len == 0) {
3970                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3971                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3972                 return JIM_ERR;
3973         }
3974         if ((addr + (len * width)) < addr) {
3975                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3976                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3977                 return JIM_ERR;
3978         }
3979         /* absurd transfer size? */
3980         if (len > 65536) {
3981                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3982                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3983                 return JIM_ERR;
3984         }
3985
3986         if ((width == 1) ||
3987                 ((width == 2) && ((addr & 1) == 0)) ||
3988                 ((width == 4) && ((addr & 3) == 0))) {
3989                 /* all is well */
3990         } else {
3991                 char buf[100];
3992                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3993                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3994                                 addr,
3995                                 width);
3996                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3997                 return JIM_ERR;
3998         }
3999
4000         /* Transfer loop */
4001
4002         /* index counter */
4003         n = 0;
4004
4005         size_t buffersize = 4096;
4006         uint8_t *buffer = malloc(buffersize);
4007         if (buffer == NULL)
4008                 return JIM_ERR;
4009
4010         /* assume ok */
4011         e = JIM_OK;
4012         while (len) {
4013                 /* Slurp... in buffer size chunks */
4014
4015                 count = len; /* in objects.. */
4016                 if (count > (buffersize / width))
4017                         count = (buffersize / width);
4018
4019                 if (is_phys)
4020                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4021                 else
4022                         retval = target_read_memory(target, addr, width, count, buffer);
4023                 if (retval != ERROR_OK) {
4024                         /* BOO !*/
4025                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
4026                                           (unsigned int)addr,
4027                                           (int)width,
4028                                           (int)count);
4029                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4030                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4031                         e = JIM_ERR;
4032                         break;
4033                 } else {
4034                         v = 0; /* shut up gcc */
4035                         for (i = 0; i < count ; i++, n++) {
4036                                 switch (width) {
4037                                         case 4:
4038                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4039                                                 break;
4040                                         case 2:
4041                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4042                                                 break;
4043                                         case 1:
4044                                                 v = buffer[i] & 0x0ff;
4045                                                 break;
4046                                 }
4047                                 new_int_array_element(interp, varname, n, v);
4048                         }
4049                         len -= count;
4050                         addr += count * width;
4051                 }
4052         }
4053
4054         free(buffer);
4055
4056         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4057
4058         return e;
4059 }
4060
4061 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4062 {
4063         char *namebuf;
4064         Jim_Obj *nameObjPtr, *valObjPtr;
4065         int result;
4066         long l;
4067
4068         namebuf = alloc_printf("%s(%d)", varname, idx);
4069         if (!namebuf)
4070                 return JIM_ERR;
4071
4072         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4073         if (!nameObjPtr) {
4074                 free(namebuf);
4075                 return JIM_ERR;
4076         }
4077
4078         Jim_IncrRefCount(nameObjPtr);
4079         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4080         Jim_DecrRefCount(interp, nameObjPtr);
4081         free(namebuf);
4082         if (valObjPtr == NULL)
4083                 return JIM_ERR;
4084
4085         result = Jim_GetLong(interp, valObjPtr, &l);
4086         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4087         *val = l;
4088         return result;
4089 }
4090
4091 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4092 {
4093         struct command_context *context;
4094         struct target *target;
4095
4096         context = current_command_context(interp);
4097         assert(context != NULL);
4098
4099         target = get_current_target(context);
4100         if (target == NULL) {
4101                 LOG_ERROR("array2mem: no current target");
4102                 return JIM_ERR;
4103         }
4104
4105         return target_array2mem(interp, target, argc-1, argv + 1);
4106 }
4107
4108 static int target_array2mem(Jim_Interp *interp, struct target *target,
4109                 int argc, Jim_Obj *const *argv)
4110 {
4111         long l;
4112         uint32_t width;
4113         int len;
4114         uint32_t addr;
4115         uint32_t count;
4116         uint32_t v;
4117         const char *varname;
4118         const char *phys;
4119         bool is_phys;
4120         int  n, e, retval;
4121         uint32_t i;
4122
4123         /* argv[1] = name of array to get the data
4124          * argv[2] = desired width
4125          * argv[3] = memory address
4126          * argv[4] = count to write
4127          */
4128         if (argc < 4 || argc > 5) {
4129                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4130                 return JIM_ERR;
4131         }
4132         varname = Jim_GetString(argv[0], &len);
4133         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4134
4135         e = Jim_GetLong(interp, argv[1], &l);
4136         width = l;
4137         if (e != JIM_OK)
4138                 return e;
4139
4140         e = Jim_GetLong(interp, argv[2], &l);
4141         addr = l;
4142         if (e != JIM_OK)
4143                 return e;
4144         e = Jim_GetLong(interp, argv[3], &l);
4145         len = l;
4146         if (e != JIM_OK)
4147                 return e;
4148         is_phys = false;
4149         if (argc > 4) {
4150                 phys = Jim_GetString(argv[4], &n);
4151                 if (!strncmp(phys, "phys", n))
4152                         is_phys = true;
4153                 else
4154                         return JIM_ERR;
4155         }
4156         switch (width) {
4157                 case 8:
4158                         width = 1;
4159                         break;
4160                 case 16:
4161                         width = 2;
4162                         break;
4163                 case 32:
4164                         width = 4;
4165                         break;
4166                 default:
4167                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4168                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4169                                         "Invalid width param, must be 8/16/32", NULL);
4170                         return JIM_ERR;
4171         }
4172         if (len == 0) {
4173                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4174                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4175                                 "array2mem: zero width read?", NULL);
4176                 return JIM_ERR;
4177         }
4178         if ((addr + (len * width)) < addr) {
4179                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4180                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4181                                 "array2mem: addr + len - wraps to zero?", NULL);
4182                 return JIM_ERR;
4183         }
4184         /* absurd transfer size? */
4185         if (len > 65536) {
4186                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4187                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4188                                 "array2mem: absurd > 64K item request", NULL);
4189                 return JIM_ERR;
4190         }
4191
4192         if ((width == 1) ||
4193                 ((width == 2) && ((addr & 1) == 0)) ||
4194                 ((width == 4) && ((addr & 3) == 0))) {
4195                 /* all is well */
4196         } else {
4197                 char buf[100];
4198                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4199                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
4200                                 (unsigned int)addr,
4201                                 (int)width);
4202                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
4203                 return JIM_ERR;
4204         }
4205
4206         /* Transfer loop */
4207
4208         /* index counter */
4209         n = 0;
4210         /* assume ok */
4211         e = JIM_OK;
4212
4213         size_t buffersize = 4096;
4214         uint8_t *buffer = malloc(buffersize);
4215         if (buffer == NULL)
4216                 return JIM_ERR;
4217
4218         while (len) {
4219                 /* Slurp... in buffer size chunks */
4220
4221                 count = len; /* in objects.. */
4222                 if (count > (buffersize / width))
4223                         count = (buffersize / width);
4224
4225                 v = 0; /* shut up gcc */
4226                 for (i = 0; i < count; i++, n++) {
4227                         get_int_array_element(interp, varname, n, &v);
4228                         switch (width) {
4229                         case 4:
4230                                 target_buffer_set_u32(target, &buffer[i * width], v);
4231                                 break;
4232                         case 2:
4233                                 target_buffer_set_u16(target, &buffer[i * width], v);
4234                                 break;
4235                         case 1:
4236                                 buffer[i] = v & 0x0ff;
4237                                 break;
4238                         }
4239                 }
4240                 len -= count;
4241
4242                 if (is_phys)
4243                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4244                 else
4245                         retval = target_write_memory(target, addr, width, count, buffer);
4246                 if (retval != ERROR_OK) {
4247                         /* BOO !*/
4248                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
4249                                           (unsigned int)addr,
4250                                           (int)width,
4251                                           (int)count);
4252                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4253                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4254                         e = JIM_ERR;
4255                         break;
4256                 }
4257                 addr += count * width;
4258         }
4259
4260         free(buffer);
4261
4262         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4263
4264         return e;
4265 }
4266
4267 /* FIX? should we propagate errors here rather than printing them
4268  * and continuing?
4269  */
4270 void target_handle_event(struct target *target, enum target_event e)
4271 {
4272         struct target_event_action *teap;
4273
4274         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4275                 if (teap->event == e) {
4276                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
4277                                            target->target_number,
4278                                            target_name(target),
4279                                            target_type_name(target),
4280                                            e,
4281                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4282                                            Jim_GetString(teap->body, NULL));
4283                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4284                                 Jim_MakeErrorMessage(teap->interp);
4285                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4286                         }
4287                 }
4288         }
4289 }
4290
4291 /**
4292  * Returns true only if the target has a handler for the specified event.
4293  */
4294 bool target_has_event_action(struct target *target, enum target_event event)
4295 {
4296         struct target_event_action *teap;
4297
4298         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4299                 if (teap->event == event)
4300                         return true;
4301         }
4302         return false;
4303 }
4304
4305 enum target_cfg_param {
4306         TCFG_TYPE,
4307         TCFG_EVENT,
4308         TCFG_WORK_AREA_VIRT,
4309         TCFG_WORK_AREA_PHYS,
4310         TCFG_WORK_AREA_SIZE,
4311         TCFG_WORK_AREA_BACKUP,
4312         TCFG_ENDIAN,
4313         TCFG_COREID,
4314         TCFG_CHAIN_POSITION,
4315         TCFG_DBGBASE,
4316         TCFG_RTOS,
4317 };
4318
4319 static Jim_Nvp nvp_config_opts[] = {
4320         { .name = "-type",             .value = TCFG_TYPE },
4321         { .name = "-event",            .value = TCFG_EVENT },
4322         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4323         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4324         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4325         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4326         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4327         { .name = "-coreid",           .value = TCFG_COREID },
4328         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4329         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4330         { .name = "-rtos",             .value = TCFG_RTOS },
4331         { .name = NULL, .value = -1 }
4332 };
4333
4334 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4335 {
4336         Jim_Nvp *n;
4337         Jim_Obj *o;
4338         jim_wide w;
4339         int e;
4340
4341         /* parse config or cget options ... */
4342         while (goi->argc > 0) {
4343                 Jim_SetEmptyResult(goi->interp);
4344                 /* Jim_GetOpt_Debug(goi); */
4345
4346                 if (target->type->target_jim_configure) {
4347                         /* target defines a configure function */
4348                         /* target gets first dibs on parameters */
4349                         e = (*(target->type->target_jim_configure))(target, goi);
4350                         if (e == JIM_OK) {
4351                                 /* more? */
4352                                 continue;
4353                         }
4354                         if (e == JIM_ERR) {
4355                                 /* An error */
4356                                 return e;
4357                         }
4358                         /* otherwise we 'continue' below */
4359                 }
4360                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4361                 if (e != JIM_OK) {
4362                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4363                         return e;
4364                 }
4365                 switch (n->value) {
4366                 case TCFG_TYPE:
4367                         /* not setable */
4368                         if (goi->isconfigure) {
4369                                 Jim_SetResultFormatted(goi->interp,
4370                                                 "not settable: %s", n->name);
4371                                 return JIM_ERR;
4372                         } else {
4373 no_params:
4374                                 if (goi->argc != 0) {
4375                                         Jim_WrongNumArgs(goi->interp,
4376                                                         goi->argc, goi->argv,
4377                                                         "NO PARAMS");
4378                                         return JIM_ERR;
4379                                 }
4380                         }
4381                         Jim_SetResultString(goi->interp,
4382                                         target_type_name(target), -1);
4383                         /* loop for more */
4384                         break;
4385                 case TCFG_EVENT:
4386                         if (goi->argc == 0) {
4387                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4388                                 return JIM_ERR;
4389                         }
4390
4391                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4392                         if (e != JIM_OK) {
4393                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4394                                 return e;
4395                         }
4396
4397                         if (goi->isconfigure) {
4398                                 if (goi->argc != 1) {
4399                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4400                                         return JIM_ERR;
4401                                 }
4402                         } else {
4403                                 if (goi->argc != 0) {
4404                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4405                                         return JIM_ERR;
4406                                 }
4407                         }
4408
4409                         {
4410                                 struct target_event_action *teap;
4411
4412                                 teap = target->event_action;
4413                                 /* replace existing? */
4414                                 while (teap) {
4415                                         if (teap->event == (enum target_event)n->value)
4416                                                 break;
4417                                         teap = teap->next;
4418                                 }
4419
4420                                 if (goi->isconfigure) {
4421                                         bool replace = true;
4422                                         if (teap == NULL) {
4423                                                 /* create new */
4424                                                 teap = calloc(1, sizeof(*teap));
4425                                                 replace = false;
4426                                         }
4427                                         teap->event = n->value;
4428                                         teap->interp = goi->interp;
4429                                         Jim_GetOpt_Obj(goi, &o);
4430                                         if (teap->body)
4431                                                 Jim_DecrRefCount(teap->interp, teap->body);
4432                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4433                                         /*
4434                                          * FIXME:
4435                                          *     Tcl/TK - "tk events" have a nice feature.
4436                                          *     See the "BIND" command.
4437                                          *    We should support that here.
4438                                          *     You can specify %X and %Y in the event code.
4439                                          *     The idea is: %T - target name.
4440                                          *     The idea is: %N - target number
4441                                          *     The idea is: %E - event name.
4442                                          */
4443                                         Jim_IncrRefCount(teap->body);
4444
4445                                         if (!replace) {
4446                                                 /* add to head of event list */
4447                                                 teap->next = target->event_action;
4448                                                 target->event_action = teap;
4449                                         }
4450                                         Jim_SetEmptyResult(goi->interp);
4451                                 } else {
4452                                         /* get */
4453                                         if (teap == NULL)
4454                                                 Jim_SetEmptyResult(goi->interp);
4455                                         else
4456                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4457                                 }
4458                         }
4459                         /* loop for more */
4460                         break;
4461
4462                 case TCFG_WORK_AREA_VIRT:
4463                         if (goi->isconfigure) {
4464                                 target_free_all_working_areas(target);
4465                                 e = Jim_GetOpt_Wide(goi, &w);
4466                                 if (e != JIM_OK)
4467                                         return e;
4468                                 target->working_area_virt = w;
4469                                 target->working_area_virt_spec = true;
4470                         } else {
4471                                 if (goi->argc != 0)
4472                                         goto no_params;
4473                         }
4474                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4475                         /* loop for more */
4476                         break;
4477
4478                 case TCFG_WORK_AREA_PHYS:
4479                         if (goi->isconfigure) {
4480                                 target_free_all_working_areas(target);
4481                                 e = Jim_GetOpt_Wide(goi, &w);
4482                                 if (e != JIM_OK)
4483                                         return e;
4484                                 target->working_area_phys = w;
4485                                 target->working_area_phys_spec = true;
4486                         } else {
4487                                 if (goi->argc != 0)
4488                                         goto no_params;
4489                         }
4490                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4491                         /* loop for more */
4492                         break;
4493
4494                 case TCFG_WORK_AREA_SIZE:
4495                         if (goi->isconfigure) {
4496                                 target_free_all_working_areas(target);
4497                                 e = Jim_GetOpt_Wide(goi, &w);
4498                                 if (e != JIM_OK)
4499                                         return e;
4500                                 target->working_area_size = w;
4501                         } else {
4502                                 if (goi->argc != 0)
4503                                         goto no_params;
4504                         }
4505                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4506                         /* loop for more */
4507                         break;
4508
4509                 case TCFG_WORK_AREA_BACKUP:
4510                         if (goi->isconfigure) {
4511                                 target_free_all_working_areas(target);
4512                                 e = Jim_GetOpt_Wide(goi, &w);
4513                                 if (e != JIM_OK)
4514                                         return e;
4515                                 /* make this exactly 1 or 0 */
4516                                 target->backup_working_area = (!!w);
4517                         } else {
4518                                 if (goi->argc != 0)
4519                                         goto no_params;
4520                         }
4521                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4522                         /* loop for more e*/
4523                         break;
4524
4525
4526                 case TCFG_ENDIAN:
4527                         if (goi->isconfigure) {
4528                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4529                                 if (e != JIM_OK) {
4530                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4531                                         return e;
4532                                 }
4533                                 target->endianness = n->value;
4534                         } else {
4535                                 if (goi->argc != 0)
4536                                         goto no_params;
4537                         }
4538                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4539                         if (n->name == NULL) {
4540                                 target->endianness = TARGET_LITTLE_ENDIAN;
4541                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4542                         }
4543                         Jim_SetResultString(goi->interp, n->name, -1);
4544                         /* loop for more */
4545                         break;
4546
4547                 case TCFG_COREID:
4548                         if (goi->isconfigure) {
4549                                 e = Jim_GetOpt_Wide(goi, &w);
4550                                 if (e != JIM_OK)
4551                                         return e;
4552                                 target->coreid = (int32_t)w;
4553                         } else {
4554                                 if (goi->argc != 0)
4555                                         goto no_params;
4556                         }
4557                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4558                         /* loop for more */
4559                         break;
4560
4561                 case TCFG_CHAIN_POSITION:
4562                         if (goi->isconfigure) {
4563                                 Jim_Obj *o_t;
4564                                 struct jtag_tap *tap;
4565                                 target_free_all_working_areas(target);
4566                                 e = Jim_GetOpt_Obj(goi, &o_t);
4567                                 if (e != JIM_OK)
4568                                         return e;
4569                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4570                                 if (tap == NULL)
4571                                         return JIM_ERR;
4572                                 /* make this exactly 1 or 0 */
4573                                 target->tap = tap;
4574                         } else {
4575                                 if (goi->argc != 0)
4576                                         goto no_params;
4577                         }
4578                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4579                         /* loop for more e*/
4580                         break;
4581                 case TCFG_DBGBASE:
4582                         if (goi->isconfigure) {
4583                                 e = Jim_GetOpt_Wide(goi, &w);
4584                                 if (e != JIM_OK)
4585                                         return e;
4586                                 target->dbgbase = (uint32_t)w;
4587                                 target->dbgbase_set = true;
4588                         } else {
4589                                 if (goi->argc != 0)
4590                                         goto no_params;
4591                         }
4592                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4593                         /* loop for more */
4594                         break;
4595
4596                 case TCFG_RTOS:
4597                         /* RTOS */
4598                         {
4599                                 int result = rtos_create(goi, target);
4600                                 if (result != JIM_OK)
4601                                         return result;
4602                         }
4603                         /* loop for more */
4604                         break;
4605                 }
4606         } /* while (goi->argc) */
4607
4608
4609                 /* done - we return */
4610         return JIM_OK;
4611 }
4612
4613 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4614 {
4615         Jim_GetOptInfo goi;
4616
4617         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4618         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4619         int need_args = 1 + goi.isconfigure;
4620         if (goi.argc < need_args) {
4621                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4622                         goi.isconfigure
4623                                 ? "missing: -option VALUE ..."
4624                                 : "missing: -option ...");
4625                 return JIM_ERR;
4626         }
4627         struct target *target = Jim_CmdPrivData(goi.interp);
4628         return target_configure(&goi, target);
4629 }
4630
4631 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4632 {
4633         const char *cmd_name = Jim_GetString(argv[0], NULL);
4634
4635         Jim_GetOptInfo goi;
4636         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4637
4638         if (goi.argc < 2 || goi.argc > 4) {
4639                 Jim_SetResultFormatted(goi.interp,
4640                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4641                 return JIM_ERR;
4642         }
4643
4644         target_write_fn fn;
4645         fn = target_write_memory;
4646
4647         int e;
4648         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4649                 /* consume it */
4650                 struct Jim_Obj *obj;
4651                 e = Jim_GetOpt_Obj(&goi, &obj);
4652                 if (e != JIM_OK)
4653                         return e;
4654
4655                 fn = target_write_phys_memory;
4656         }
4657
4658         jim_wide a;
4659         e = Jim_GetOpt_Wide(&goi, &a);
4660         if (e != JIM_OK)
4661                 return e;
4662
4663         jim_wide b;
4664         e = Jim_GetOpt_Wide(&goi, &b);
4665         if (e != JIM_OK)
4666                 return e;
4667
4668         jim_wide c = 1;
4669         if (goi.argc == 1) {
4670                 e = Jim_GetOpt_Wide(&goi, &c);
4671                 if (e != JIM_OK)
4672                         return e;
4673         }
4674
4675         /* all args must be consumed */
4676         if (goi.argc != 0)
4677                 return JIM_ERR;
4678
4679         struct target *target = Jim_CmdPrivData(goi.interp);
4680         unsigned data_size;
4681         if (strcasecmp(cmd_name, "mww") == 0)
4682                 data_size = 4;
4683         else if (strcasecmp(cmd_name, "mwh") == 0)
4684                 data_size = 2;
4685         else if (strcasecmp(cmd_name, "mwb") == 0)
4686                 data_size = 1;
4687         else {
4688                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4689                 return JIM_ERR;
4690         }
4691
4692         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4693 }
4694
4695 /**
4696 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4697 *
4698 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4699 *         mdh [phys] <address> [<count>] - for 16 bit reads
4700 *         mdb [phys] <address> [<count>] - for  8 bit reads
4701 *
4702 *  Count defaults to 1.
4703 *
4704 *  Calls target_read_memory or target_read_phys_memory depending on
4705 *  the presence of the "phys" argument
4706 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4707 *  to int representation in base16.
4708 *  Also outputs read data in a human readable form using command_print
4709 *
4710 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4711 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4712 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4713 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4714 *  on success, with [<count>] number of elements.
4715 *
4716 *  In case of little endian target:
4717 *      Example1: "mdw 0x00000000"  returns "10123456"
4718 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4719 *      Example3: "mdb 0x00000000" returns "56"
4720 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4721 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4722 **/
4723 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4724 {
4725         const char *cmd_name = Jim_GetString(argv[0], NULL);
4726
4727         Jim_GetOptInfo goi;
4728         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4729
4730         if ((goi.argc < 1) || (goi.argc > 3)) {
4731                 Jim_SetResultFormatted(goi.interp,
4732                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4733                 return JIM_ERR;
4734         }
4735
4736         int (*fn)(struct target *target,
4737                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4738         fn = target_read_memory;
4739
4740         int e;
4741         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4742                 /* consume it */
4743                 struct Jim_Obj *obj;
4744                 e = Jim_GetOpt_Obj(&goi, &obj);
4745                 if (e != JIM_OK)
4746                         return e;
4747
4748                 fn = target_read_phys_memory;
4749         }
4750
4751         /* Read address parameter */
4752         jim_wide addr;
4753         e = Jim_GetOpt_Wide(&goi, &addr);
4754         if (e != JIM_OK)
4755                 return JIM_ERR;
4756
4757         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4758         jim_wide count;
4759         if (goi.argc == 1) {
4760                 e = Jim_GetOpt_Wide(&goi, &count);
4761                 if (e != JIM_OK)
4762                         return JIM_ERR;
4763         } else
4764                 count = 1;
4765
4766         /* all args must be consumed */
4767         if (goi.argc != 0)
4768                 return JIM_ERR;
4769
4770         jim_wide dwidth = 1; /* shut up gcc */
4771         if (strcasecmp(cmd_name, "mdw") == 0)
4772                 dwidth = 4;
4773         else if (strcasecmp(cmd_name, "mdh") == 0)
4774                 dwidth = 2;
4775         else if (strcasecmp(cmd_name, "mdb") == 0)
4776                 dwidth = 1;
4777         else {
4778                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4779                 return JIM_ERR;
4780         }
4781
4782         /* convert count to "bytes" */
4783         int bytes = count * dwidth;
4784
4785         struct target *target = Jim_CmdPrivData(goi.interp);
4786         uint8_t  target_buf[32];
4787         jim_wide x, y, z;
4788         while (bytes > 0) {
4789                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4790
4791                 /* Try to read out next block */
4792                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4793
4794                 if (e != ERROR_OK) {
4795                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4796                         return JIM_ERR;
4797                 }
4798
4799                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4800                 switch (dwidth) {
4801                 case 4:
4802                         for (x = 0; x < 16 && x < y; x += 4) {
4803                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4804                                 command_print_sameline(NULL, "%08x ", (int)(z));
4805                         }
4806                         for (; (x < 16) ; x += 4)
4807                                 command_print_sameline(NULL, "         ");
4808                         break;
4809                 case 2:
4810                         for (x = 0; x < 16 && x < y; x += 2) {
4811                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4812                                 command_print_sameline(NULL, "%04x ", (int)(z));
4813                         }
4814                         for (; (x < 16) ; x += 2)
4815                                 command_print_sameline(NULL, "     ");
4816                         break;
4817                 case 1:
4818                 default:
4819                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4820                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4821                                 command_print_sameline(NULL, "%02x ", (int)(z));
4822                         }
4823                         for (; (x < 16) ; x += 1)
4824                                 command_print_sameline(NULL, "   ");
4825                         break;
4826                 }
4827                 /* ascii-ify the bytes */
4828                 for (x = 0 ; x < y ; x++) {
4829                         if ((target_buf[x] >= 0x20) &&
4830                                 (target_buf[x] <= 0x7e)) {
4831                                 /* good */
4832                         } else {
4833                                 /* smack it */
4834                                 target_buf[x] = '.';
4835                         }
4836                 }
4837                 /* space pad  */
4838                 while (x < 16) {
4839                         target_buf[x] = ' ';
4840                         x++;
4841                 }
4842                 /* terminate */
4843                 target_buf[16] = 0;
4844                 /* print - with a newline */
4845                 command_print_sameline(NULL, "%s\n", target_buf);
4846                 /* NEXT... */
4847                 bytes -= 16;
4848                 addr += 16;
4849         }
4850         return JIM_OK;
4851 }
4852
4853 static int jim_target_mem2array(Jim_Interp *interp,
4854                 int argc, Jim_Obj *const *argv)
4855 {
4856         struct target *target = Jim_CmdPrivData(interp);
4857         return target_mem2array(interp, target, argc - 1, argv + 1);
4858 }
4859
4860 static int jim_target_array2mem(Jim_Interp *interp,
4861                 int argc, Jim_Obj *const *argv)
4862 {
4863         struct target *target = Jim_CmdPrivData(interp);
4864         return target_array2mem(interp, target, argc - 1, argv + 1);
4865 }
4866
4867 static int jim_target_tap_disabled(Jim_Interp *interp)
4868 {
4869         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4870         return JIM_ERR;
4871 }
4872
4873 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4874 {
4875         if (argc != 1) {
4876                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4877                 return JIM_ERR;
4878         }
4879         struct target *target = Jim_CmdPrivData(interp);
4880         if (!target->tap->enabled)
4881                 return jim_target_tap_disabled(interp);
4882
4883         int e = target->type->examine(target);
4884         if (e != ERROR_OK)
4885                 return JIM_ERR;
4886         return JIM_OK;
4887 }
4888
4889 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4890 {
4891         if (argc != 1) {
4892                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4893                 return JIM_ERR;
4894         }
4895         struct target *target = Jim_CmdPrivData(interp);
4896
4897         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4898                 return JIM_ERR;
4899
4900         return JIM_OK;
4901 }
4902
4903 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4904 {
4905         if (argc != 1) {
4906                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4907                 return JIM_ERR;
4908         }
4909         struct target *target = Jim_CmdPrivData(interp);
4910         if (!target->tap->enabled)
4911                 return jim_target_tap_disabled(interp);
4912
4913         int e;
4914         if (!(target_was_examined(target)))
4915                 e = ERROR_TARGET_NOT_EXAMINED;
4916         else
4917                 e = target->type->poll(target);
4918         if (e != ERROR_OK)
4919                 return JIM_ERR;
4920         return JIM_OK;
4921 }
4922
4923 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4924 {
4925         Jim_GetOptInfo goi;
4926         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4927
4928         if (goi.argc != 2) {
4929                 Jim_WrongNumArgs(interp, 0, argv,
4930                                 "([tT]|[fF]|assert|deassert) BOOL");
4931                 return JIM_ERR;
4932         }
4933
4934         Jim_Nvp *n;
4935         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4936         if (e != JIM_OK) {
4937                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4938                 return e;
4939         }
4940         /* the halt or not param */
4941         jim_wide a;
4942         e = Jim_GetOpt_Wide(&goi, &a);
4943         if (e != JIM_OK)
4944                 return e;
4945
4946         struct target *target = Jim_CmdPrivData(goi.interp);
4947         if (!target->tap->enabled)
4948                 return jim_target_tap_disabled(interp);
4949
4950         if (!target->type->assert_reset || !target->type->deassert_reset) {
4951                 Jim_SetResultFormatted(interp,
4952                                 "No target-specific reset for %s",
4953                                 target_name(target));
4954                 return JIM_ERR;
4955         }
4956         /* determine if we should halt or not. */
4957         target->reset_halt = !!a;
4958         /* When this happens - all workareas are invalid. */
4959         target_free_all_working_areas_restore(target, 0);
4960
4961         /* do the assert */
4962         if (n->value == NVP_ASSERT)
4963                 e = target->type->assert_reset(target);
4964         else
4965                 e = target->type->deassert_reset(target);
4966         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4967 }
4968
4969 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4970 {
4971         if (argc != 1) {
4972                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4973                 return JIM_ERR;
4974         }
4975         struct target *target = Jim_CmdPrivData(interp);
4976         if (!target->tap->enabled)
4977                 return jim_target_tap_disabled(interp);
4978         int e = target->type->halt(target);
4979         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4980 }
4981
4982 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4983 {
4984         Jim_GetOptInfo goi;
4985         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4986
4987         /* params:  <name>  statename timeoutmsecs */
4988         if (goi.argc != 2) {
4989                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4990                 Jim_SetResultFormatted(goi.interp,
4991                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4992                 return JIM_ERR;
4993         }
4994
4995         Jim_Nvp *n;
4996         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4997         if (e != JIM_OK) {
4998                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4999                 return e;
5000         }
5001         jim_wide a;
5002         e = Jim_GetOpt_Wide(&goi, &a);
5003         if (e != JIM_OK)
5004                 return e;
5005         struct target *target = Jim_CmdPrivData(interp);
5006         if (!target->tap->enabled)
5007                 return jim_target_tap_disabled(interp);
5008
5009         e = target_wait_state(target, n->value, a);
5010         if (e != ERROR_OK) {
5011                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5012                 Jim_SetResultFormatted(goi.interp,
5013                                 "target: %s wait %s fails (%#s) %s",
5014                                 target_name(target), n->name,
5015                                 eObj, target_strerror_safe(e));
5016                 Jim_FreeNewObj(interp, eObj);
5017                 return JIM_ERR;
5018         }
5019         return JIM_OK;
5020 }
5021 /* List for human, Events defined for this target.
5022  * scripts/programs should use 'name cget -event NAME'
5023  */
5024 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5025 {
5026         struct command_context *cmd_ctx = current_command_context(interp);
5027         assert(cmd_ctx != NULL);
5028
5029         struct target *target = Jim_CmdPrivData(interp);
5030         struct target_event_action *teap = target->event_action;
5031         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5032                                    target->target_number,
5033                                    target_name(target));
5034         command_print(cmd_ctx, "%-25s | Body", "Event");
5035         command_print(cmd_ctx, "------------------------- | "
5036                         "----------------------------------------");
5037         while (teap) {
5038                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5039                 command_print(cmd_ctx, "%-25s | %s",
5040                                 opt->name, Jim_GetString(teap->body, NULL));
5041                 teap = teap->next;
5042         }
5043         command_print(cmd_ctx, "***END***");
5044         return JIM_OK;
5045 }
5046 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5047 {
5048         if (argc != 1) {
5049                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5050                 return JIM_ERR;
5051         }
5052         struct target *target = Jim_CmdPrivData(interp);
5053         Jim_SetResultString(interp, target_state_name(target), -1);
5054         return JIM_OK;
5055 }
5056 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5057 {
5058         Jim_GetOptInfo goi;
5059         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5060         if (goi.argc != 1) {
5061                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5062                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5063                 return JIM_ERR;
5064         }
5065         Jim_Nvp *n;
5066         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5067         if (e != JIM_OK) {
5068                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5069                 return e;
5070         }
5071         struct target *target = Jim_CmdPrivData(interp);
5072         target_handle_event(target, n->value);
5073         return JIM_OK;
5074 }
5075
5076 static const struct command_registration target_instance_command_handlers[] = {
5077         {
5078                 .name = "configure",
5079                 .mode = COMMAND_CONFIG,
5080                 .jim_handler = jim_target_configure,
5081                 .help  = "configure a new target for use",
5082                 .usage = "[target_attribute ...]",
5083         },
5084         {
5085                 .name = "cget",
5086                 .mode = COMMAND_ANY,
5087                 .jim_handler = jim_target_configure,
5088                 .help  = "returns the specified target attribute",
5089                 .usage = "target_attribute",
5090         },
5091         {
5092                 .name = "mww",
5093                 .mode = COMMAND_EXEC,
5094                 .jim_handler = jim_target_mw,
5095                 .help = "Write 32-bit word(s) to target memory",
5096                 .usage = "address data [count]",
5097         },
5098         {
5099                 .name = "mwh",
5100                 .mode = COMMAND_EXEC,
5101                 .jim_handler = jim_target_mw,
5102                 .help = "Write 16-bit half-word(s) to target memory",
5103                 .usage = "address data [count]",
5104         },
5105         {
5106                 .name = "mwb",
5107                 .mode = COMMAND_EXEC,
5108                 .jim_handler = jim_target_mw,
5109                 .help = "Write byte(s) to target memory",
5110                 .usage = "address data [count]",
5111         },
5112         {
5113                 .name = "mdw",
5114                 .mode = COMMAND_EXEC,
5115                 .jim_handler = jim_target_md,
5116                 .help = "Display target memory as 32-bit words",
5117                 .usage = "address [count]",
5118         },
5119         {
5120                 .name = "mdh",
5121                 .mode = COMMAND_EXEC,
5122                 .jim_handler = jim_target_md,
5123                 .help = "Display target memory as 16-bit half-words",
5124                 .usage = "address [count]",
5125         },
5126         {
5127                 .name = "mdb",
5128                 .mode = COMMAND_EXEC,
5129                 .jim_handler = jim_target_md,
5130                 .help = "Display target memory as 8-bit bytes",
5131                 .usage = "address [count]",
5132         },
5133         {
5134                 .name = "array2mem",
5135                 .mode = COMMAND_EXEC,
5136                 .jim_handler = jim_target_array2mem,
5137                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5138                         "to target memory",
5139                 .usage = "arrayname bitwidth address count",
5140         },
5141         {
5142                 .name = "mem2array",
5143                 .mode = COMMAND_EXEC,
5144                 .jim_handler = jim_target_mem2array,
5145                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5146                         "from target memory",
5147                 .usage = "arrayname bitwidth address count",
5148         },
5149         {
5150                 .name = "eventlist",
5151                 .mode = COMMAND_EXEC,
5152                 .jim_handler = jim_target_event_list,
5153                 .help = "displays a table of events defined for this target",
5154         },
5155         {
5156                 .name = "curstate",
5157                 .mode = COMMAND_EXEC,
5158                 .jim_handler = jim_target_current_state,
5159                 .help = "displays the current state of this target",
5160         },
5161         {
5162                 .name = "arp_examine",
5163                 .mode = COMMAND_EXEC,
5164                 .jim_handler = jim_target_examine,
5165                 .help = "used internally for reset processing",
5166         },
5167         {
5168                 .name = "arp_halt_gdb",
5169                 .mode = COMMAND_EXEC,
5170                 .jim_handler = jim_target_halt_gdb,
5171                 .help = "used internally for reset processing to halt GDB",
5172         },
5173         {
5174                 .name = "arp_poll",
5175                 .mode = COMMAND_EXEC,
5176                 .jim_handler = jim_target_poll,
5177                 .help = "used internally for reset processing",
5178         },
5179         {
5180                 .name = "arp_reset",
5181                 .mode = COMMAND_EXEC,
5182                 .jim_handler = jim_target_reset,
5183                 .help = "used internally for reset processing",
5184         },
5185         {
5186                 .name = "arp_halt",
5187                 .mode = COMMAND_EXEC,
5188                 .jim_handler = jim_target_halt,
5189                 .help = "used internally for reset processing",
5190         },
5191         {
5192                 .name = "arp_waitstate",
5193                 .mode = COMMAND_EXEC,
5194                 .jim_handler = jim_target_wait_state,
5195                 .help = "used internally for reset processing",
5196         },
5197         {
5198                 .name = "invoke-event",
5199                 .mode = COMMAND_EXEC,
5200                 .jim_handler = jim_target_invoke_event,
5201                 .help = "invoke handler for specified event",
5202                 .usage = "event_name",
5203         },
5204         COMMAND_REGISTRATION_DONE
5205 };
5206
5207 static int target_create(Jim_GetOptInfo *goi)
5208 {
5209         Jim_Obj *new_cmd;
5210         Jim_Cmd *cmd;
5211         const char *cp;
5212         int e;
5213         int x;
5214         struct target *target;
5215         struct command_context *cmd_ctx;
5216
5217         cmd_ctx = current_command_context(goi->interp);
5218         assert(cmd_ctx != NULL);
5219
5220         if (goi->argc < 3) {
5221                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5222                 return JIM_ERR;
5223         }
5224
5225         /* COMMAND */
5226         Jim_GetOpt_Obj(goi, &new_cmd);
5227         /* does this command exist? */
5228         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5229         if (cmd) {
5230                 cp = Jim_GetString(new_cmd, NULL);
5231                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5232                 return JIM_ERR;
5233         }
5234
5235         /* TYPE */
5236         e = Jim_GetOpt_String(goi, &cp, NULL);
5237         if (e != JIM_OK)
5238                 return e;
5239         struct transport *tr = get_current_transport();
5240         if (tr->override_target) {
5241                 e = tr->override_target(&cp);
5242                 if (e != ERROR_OK) {
5243                         LOG_ERROR("The selected transport doesn't support this target");
5244                         return JIM_ERR;
5245                 }
5246                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5247         }
5248         /* now does target type exist */
5249         for (x = 0 ; target_types[x] ; x++) {
5250                 if (0 == strcmp(cp, target_types[x]->name)) {
5251                         /* found */
5252                         break;
5253                 }
5254
5255                 /* check for deprecated name */
5256                 if (target_types[x]->deprecated_name) {
5257                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5258                                 /* found */
5259                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5260                                 break;
5261                         }
5262                 }
5263         }
5264         if (target_types[x] == NULL) {
5265                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5266                 for (x = 0 ; target_types[x] ; x++) {
5267                         if (target_types[x + 1]) {
5268                                 Jim_AppendStrings(goi->interp,
5269                                                                    Jim_GetResult(goi->interp),
5270                                                                    target_types[x]->name,
5271                                                                    ", ", NULL);
5272                         } else {
5273                                 Jim_AppendStrings(goi->interp,
5274                                                                    Jim_GetResult(goi->interp),
5275                                                                    " or ",
5276                                                                    target_types[x]->name, NULL);
5277                         }
5278                 }
5279                 return JIM_ERR;
5280         }
5281
5282         /* Create it */
5283         target = calloc(1, sizeof(struct target));
5284         /* set target number */
5285         target->target_number = new_target_number();
5286         cmd_ctx->current_target = target->target_number;
5287
5288         /* allocate memory for each unique target type */
5289         target->type = calloc(1, sizeof(struct target_type));
5290
5291         memcpy(target->type, target_types[x], sizeof(struct target_type));
5292
5293         /* will be set by "-endian" */
5294         target->endianness = TARGET_ENDIAN_UNKNOWN;
5295
5296         /* default to first core, override with -coreid */
5297         target->coreid = 0;
5298
5299         target->working_area        = 0x0;
5300         target->working_area_size   = 0x0;
5301         target->working_areas       = NULL;
5302         target->backup_working_area = 0;
5303
5304         target->state               = TARGET_UNKNOWN;
5305         target->debug_reason        = DBG_REASON_UNDEFINED;
5306         target->reg_cache           = NULL;
5307         target->breakpoints         = NULL;
5308         target->watchpoints         = NULL;
5309         target->next                = NULL;
5310         target->arch_info           = NULL;
5311
5312         target->display             = 1;
5313
5314         target->halt_issued                     = false;
5315
5316         /* initialize trace information */
5317         target->trace_info = malloc(sizeof(struct trace));
5318         target->trace_info->num_trace_points         = 0;
5319         target->trace_info->trace_points_size        = 0;
5320         target->trace_info->trace_points             = NULL;
5321         target->trace_info->trace_history_size       = 0;
5322         target->trace_info->trace_history            = NULL;
5323         target->trace_info->trace_history_pos        = 0;
5324         target->trace_info->trace_history_overflowed = 0;
5325
5326         target->dbgmsg          = NULL;
5327         target->dbg_msg_enabled = 0;
5328
5329         target->endianness = TARGET_ENDIAN_UNKNOWN;
5330
5331         target->rtos = NULL;
5332         target->rtos_auto_detect = false;
5333
5334         /* Do the rest as "configure" options */
5335         goi->isconfigure = 1;
5336         e = target_configure(goi, target);
5337
5338         if (target->tap == NULL) {
5339                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
5340                 e = JIM_ERR;
5341         }
5342
5343         if (e != JIM_OK) {
5344                 free(target->type);
5345                 free(target);
5346                 return e;
5347         }
5348
5349         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5350                 /* default endian to little if not specified */
5351                 target->endianness = TARGET_LITTLE_ENDIAN;
5352         }
5353
5354         cp = Jim_GetString(new_cmd, NULL);
5355         target->cmd_name = strdup(cp);
5356
5357         /* create the target specific commands */
5358         if (target->type->commands) {
5359                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5360                 if (ERROR_OK != e)
5361                         LOG_ERROR("unable to register '%s' commands", cp);
5362         }
5363         if (target->type->target_create)
5364                 (*(target->type->target_create))(target, goi->interp);
5365
5366         /* append to end of list */
5367         {
5368                 struct target **tpp;
5369                 tpp = &(all_targets);
5370                 while (*tpp)
5371                         tpp = &((*tpp)->next);
5372                 *tpp = target;
5373         }
5374
5375         /* now - create the new target name command */
5376         const struct command_registration target_subcommands[] = {
5377                 {
5378                         .chain = target_instance_command_handlers,
5379                 },
5380                 {
5381                         .chain = target->type->commands,
5382                 },
5383                 COMMAND_REGISTRATION_DONE
5384         };
5385         const struct command_registration target_commands[] = {
5386                 {
5387                         .name = cp,
5388                         .mode = COMMAND_ANY,
5389                         .help = "target command group",
5390                         .usage = "",
5391                         .chain = target_subcommands,
5392                 },
5393                 COMMAND_REGISTRATION_DONE
5394         };
5395         e = register_commands(cmd_ctx, NULL, target_commands);
5396         if (ERROR_OK != e)
5397                 return JIM_ERR;
5398
5399         struct command *c = command_find_in_context(cmd_ctx, cp);
5400         assert(c);
5401         command_set_handler_data(c, target);
5402
5403         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5404 }
5405
5406 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5407 {
5408         if (argc != 1) {
5409                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5410                 return JIM_ERR;
5411         }
5412         struct command_context *cmd_ctx = current_command_context(interp);
5413         assert(cmd_ctx != NULL);
5414
5415         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5416         return JIM_OK;
5417 }
5418
5419 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5420 {
5421         if (argc != 1) {
5422                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5423                 return JIM_ERR;
5424         }
5425         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5426         for (unsigned x = 0; NULL != target_types[x]; x++) {
5427                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5428                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5429         }
5430         return JIM_OK;
5431 }
5432
5433 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5434 {
5435         if (argc != 1) {
5436                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5437                 return JIM_ERR;
5438         }
5439         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5440         struct target *target = all_targets;
5441         while (target) {
5442                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5443                         Jim_NewStringObj(interp, target_name(target), -1));
5444                 target = target->next;
5445         }
5446         return JIM_OK;
5447 }
5448
5449 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5450 {
5451         int i;
5452         const char *targetname;
5453         int retval, len;
5454         struct target *target = (struct target *) NULL;
5455         struct target_list *head, *curr, *new;
5456         curr = (struct target_list *) NULL;
5457         head = (struct target_list *) NULL;
5458
5459         retval = 0;
5460         LOG_DEBUG("%d", argc);
5461         /* argv[1] = target to associate in smp
5462          * argv[2] = target to assoicate in smp
5463          * argv[3] ...
5464          */
5465
5466         for (i = 1; i < argc; i++) {
5467
5468                 targetname = Jim_GetString(argv[i], &len);
5469                 target = get_target(targetname);
5470                 LOG_DEBUG("%s ", targetname);
5471                 if (target) {
5472                         new = malloc(sizeof(struct target_list));
5473                         new->target = target;
5474                         new->next = (struct target_list *)NULL;
5475                         if (head == (struct target_list *)NULL) {
5476                                 head = new;
5477                                 curr = head;
5478                         } else {
5479                                 curr->next = new;
5480                                 curr = new;
5481                         }
5482                 }
5483         }
5484         /*  now parse the list of cpu and put the target in smp mode*/
5485         curr = head;
5486
5487         while (curr != (struct target_list *)NULL) {
5488                 target = curr->target;
5489                 target->smp = 1;
5490                 target->head = head;
5491                 curr = curr->next;
5492         }
5493
5494         if (target && target->rtos)
5495                 retval = rtos_smp_init(head->target);
5496
5497         return retval;
5498 }
5499
5500
5501 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5502 {
5503         Jim_GetOptInfo goi;
5504         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5505         if (goi.argc < 3) {
5506                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5507                         "<name> <target_type> [<target_options> ...]");
5508                 return JIM_ERR;
5509         }
5510         return target_create(&goi);
5511 }
5512
5513 static const struct command_registration target_subcommand_handlers[] = {
5514         {
5515                 .name = "init",
5516                 .mode = COMMAND_CONFIG,
5517                 .handler = handle_target_init_command,
5518                 .help = "initialize targets",
5519         },
5520         {
5521                 .name = "create",
5522                 /* REVISIT this should be COMMAND_CONFIG ... */
5523                 .mode = COMMAND_ANY,
5524                 .jim_handler = jim_target_create,
5525                 .usage = "name type '-chain-position' name [options ...]",
5526                 .help = "Creates and selects a new target",
5527         },
5528         {
5529                 .name = "current",
5530                 .mode = COMMAND_ANY,
5531                 .jim_handler = jim_target_current,
5532                 .help = "Returns the currently selected target",
5533         },
5534         {
5535                 .name = "types",
5536                 .mode = COMMAND_ANY,
5537                 .jim_handler = jim_target_types,
5538                 .help = "Returns the available target types as "
5539                                 "a list of strings",
5540         },
5541         {
5542                 .name = "names",
5543                 .mode = COMMAND_ANY,
5544                 .jim_handler = jim_target_names,
5545                 .help = "Returns the names of all targets as a list of strings",
5546         },
5547         {
5548                 .name = "smp",
5549                 .mode = COMMAND_ANY,
5550                 .jim_handler = jim_target_smp,
5551                 .usage = "targetname1 targetname2 ...",
5552                 .help = "gather several target in a smp list"
5553         },
5554
5555         COMMAND_REGISTRATION_DONE
5556 };
5557
5558 struct FastLoad {
5559         uint32_t address;
5560         uint8_t *data;
5561         int length;
5562
5563 };
5564
5565 static int fastload_num;
5566 static struct FastLoad *fastload;
5567
5568 static void free_fastload(void)
5569 {
5570         if (fastload != NULL) {
5571                 int i;
5572                 for (i = 0; i < fastload_num; i++) {
5573                         if (fastload[i].data)
5574                                 free(fastload[i].data);
5575                 }
5576                 free(fastload);
5577                 fastload = NULL;
5578         }
5579 }
5580
5581 COMMAND_HANDLER(handle_fast_load_image_command)
5582 {
5583         uint8_t *buffer;
5584         size_t buf_cnt;
5585         uint32_t image_size;
5586         uint32_t min_address = 0;
5587         uint32_t max_address = 0xffffffff;
5588         int i;
5589
5590         struct image image;
5591
5592         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5593                         &image, &min_address, &max_address);
5594         if (ERROR_OK != retval)
5595                 return retval;
5596
5597         struct duration bench;
5598         duration_start(&bench);
5599
5600         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5601         if (retval != ERROR_OK)
5602                 return retval;
5603
5604         image_size = 0x0;
5605         retval = ERROR_OK;
5606         fastload_num = image.num_sections;
5607         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5608         if (fastload == NULL) {
5609                 command_print(CMD_CTX, "out of memory");
5610                 image_close(&image);
5611                 return ERROR_FAIL;
5612         }
5613         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5614         for (i = 0; i < image.num_sections; i++) {
5615                 buffer = malloc(image.sections[i].size);
5616                 if (buffer == NULL) {
5617                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5618                                                   (int)(image.sections[i].size));
5619                         retval = ERROR_FAIL;
5620                         break;
5621                 }
5622
5623                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5624                 if (retval != ERROR_OK) {
5625                         free(buffer);
5626                         break;
5627                 }
5628
5629                 uint32_t offset = 0;
5630                 uint32_t length = buf_cnt;
5631
5632                 /* DANGER!!! beware of unsigned comparision here!!! */
5633
5634                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5635                                 (image.sections[i].base_address < max_address)) {
5636                         if (image.sections[i].base_address < min_address) {
5637                                 /* clip addresses below */
5638                                 offset += min_address-image.sections[i].base_address;
5639                                 length -= offset;
5640                         }
5641
5642                         if (image.sections[i].base_address + buf_cnt > max_address)
5643                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5644
5645                         fastload[i].address = image.sections[i].base_address + offset;
5646                         fastload[i].data = malloc(length);
5647                         if (fastload[i].data == NULL) {
5648                                 free(buffer);
5649                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5650                                                           length);
5651                                 retval = ERROR_FAIL;
5652                                 break;
5653                         }
5654                         memcpy(fastload[i].data, buffer + offset, length);
5655                         fastload[i].length = length;
5656
5657                         image_size += length;
5658                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5659                                                   (unsigned int)length,
5660                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5661                 }
5662
5663                 free(buffer);
5664         }
5665
5666         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5667                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5668                                 "in %fs (%0.3f KiB/s)", image_size,
5669                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5670
5671                 command_print(CMD_CTX,
5672                                 "WARNING: image has not been loaded to target!"
5673                                 "You can issue a 'fast_load' to finish loading.");
5674         }
5675
5676         image_close(&image);
5677
5678         if (retval != ERROR_OK)
5679                 free_fastload();
5680
5681         return retval;
5682 }
5683
5684 COMMAND_HANDLER(handle_fast_load_command)
5685 {
5686         if (CMD_ARGC > 0)
5687                 return ERROR_COMMAND_SYNTAX_ERROR;
5688         if (fastload == NULL) {
5689                 LOG_ERROR("No image in memory");
5690                 return ERROR_FAIL;
5691         }
5692         int i;
5693         int64_t ms = timeval_ms();
5694         int size = 0;
5695         int retval = ERROR_OK;
5696         for (i = 0; i < fastload_num; i++) {
5697                 struct target *target = get_current_target(CMD_CTX);
5698                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5699                                           (unsigned int)(fastload[i].address),
5700                                           (unsigned int)(fastload[i].length));
5701                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5702                 if (retval != ERROR_OK)
5703                         break;
5704                 size += fastload[i].length;
5705         }
5706         if (retval == ERROR_OK) {
5707                 int64_t after = timeval_ms();
5708                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5709         }
5710         return retval;
5711 }
5712
5713 static const struct command_registration target_command_handlers[] = {
5714         {
5715                 .name = "targets",
5716                 .handler = handle_targets_command,
5717                 .mode = COMMAND_ANY,
5718                 .help = "change current default target (one parameter) "
5719                         "or prints table of all targets (no parameters)",
5720                 .usage = "[target]",
5721         },
5722         {
5723                 .name = "target",
5724                 .mode = COMMAND_CONFIG,
5725                 .help = "configure target",
5726
5727                 .chain = target_subcommand_handlers,
5728         },
5729         COMMAND_REGISTRATION_DONE
5730 };
5731
5732 int target_register_commands(struct command_context *cmd_ctx)
5733 {
5734         return register_commands(cmd_ctx, NULL, target_command_handlers);
5735 }
5736
5737 static bool target_reset_nag = true;
5738
5739 bool get_target_reset_nag(void)
5740 {
5741         return target_reset_nag;
5742 }
5743
5744 COMMAND_HANDLER(handle_target_reset_nag)
5745 {
5746         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5747                         &target_reset_nag, "Nag after each reset about options to improve "
5748                         "performance");
5749 }
5750
5751 COMMAND_HANDLER(handle_ps_command)
5752 {
5753         struct target *target = get_current_target(CMD_CTX);
5754         char *display;
5755         if (target->state != TARGET_HALTED) {
5756                 LOG_INFO("target not halted !!");
5757                 return ERROR_OK;
5758         }
5759
5760         if ((target->rtos) && (target->rtos->type)
5761                         && (target->rtos->type->ps_command)) {
5762                 display = target->rtos->type->ps_command(target);
5763                 command_print(CMD_CTX, "%s", display);
5764                 free(display);
5765                 return ERROR_OK;
5766         } else {
5767                 LOG_INFO("failed");
5768                 return ERROR_TARGET_FAILURE;
5769         }
5770 }
5771
5772 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
5773 {
5774         if (text != NULL)
5775                 command_print_sameline(cmd_ctx, "%s", text);
5776         for (int i = 0; i < size; i++)
5777                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
5778         command_print(cmd_ctx, " ");
5779 }
5780
5781 COMMAND_HANDLER(handle_test_mem_access_command)
5782 {
5783         struct target *target = get_current_target(CMD_CTX);
5784         uint32_t test_size;
5785         int retval = ERROR_OK;
5786
5787         if (target->state != TARGET_HALTED) {
5788                 LOG_INFO("target not halted !!");
5789                 return ERROR_FAIL;
5790         }
5791
5792         if (CMD_ARGC != 1)
5793                 return ERROR_COMMAND_SYNTAX_ERROR;
5794
5795         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
5796
5797         /* Test reads */
5798         size_t num_bytes = test_size + 4;
5799
5800         struct working_area *wa = NULL;
5801         retval = target_alloc_working_area(target, num_bytes, &wa);
5802         if (retval != ERROR_OK) {
5803                 LOG_ERROR("Not enough working area");
5804                 return ERROR_FAIL;
5805         }
5806
5807         uint8_t *test_pattern = malloc(num_bytes);
5808
5809         for (size_t i = 0; i < num_bytes; i++)
5810                 test_pattern[i] = rand();
5811
5812         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
5813         if (retval != ERROR_OK) {
5814                 LOG_ERROR("Test pattern write failed");
5815                 goto out;
5816         }
5817
5818         for (int host_offset = 0; host_offset <= 1; host_offset++) {
5819                 for (int size = 1; size <= 4; size *= 2) {
5820                         for (int offset = 0; offset < 4; offset++) {
5821                                 uint32_t count = test_size / size;
5822                                 size_t host_bufsiz = (count + 2) * size + host_offset;
5823                                 uint8_t *read_ref = malloc(host_bufsiz);
5824                                 uint8_t *read_buf = malloc(host_bufsiz);
5825
5826                                 for (size_t i = 0; i < host_bufsiz; i++) {
5827                                         read_ref[i] = rand();
5828                                         read_buf[i] = read_ref[i];
5829                                 }
5830                                 command_print_sameline(CMD_CTX,
5831                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
5832                                                 size, offset, host_offset ? "un" : "");
5833
5834                                 struct duration bench;
5835                                 duration_start(&bench);
5836
5837                                 retval = target_read_memory(target, wa->address + offset, size, count,
5838                                                 read_buf + size + host_offset);
5839
5840                                 duration_measure(&bench);
5841
5842                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
5843                                         command_print(CMD_CTX, "Unsupported alignment");
5844                                         goto next;
5845                                 } else if (retval != ERROR_OK) {
5846                                         command_print(CMD_CTX, "Memory read failed");
5847                                         goto next;
5848                                 }
5849
5850                                 /* replay on host */
5851                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
5852
5853                                 /* check result */
5854                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
5855                                 if (result == 0) {
5856                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
5857                                                         duration_elapsed(&bench),
5858                                                         duration_kbps(&bench, count * size));
5859                                 } else {
5860                                         command_print(CMD_CTX, "Compare failed");
5861                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
5862                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
5863                                 }
5864 next:
5865                                 free(read_ref);
5866                                 free(read_buf);
5867                         }
5868                 }
5869         }
5870
5871 out:
5872         free(test_pattern);
5873
5874         if (wa != NULL)
5875                 target_free_working_area(target, wa);
5876
5877         /* Test writes */
5878         num_bytes = test_size + 4 + 4 + 4;
5879
5880         retval = target_alloc_working_area(target, num_bytes, &wa);
5881         if (retval != ERROR_OK) {
5882                 LOG_ERROR("Not enough working area");
5883                 return ERROR_FAIL;
5884         }
5885
5886         test_pattern = malloc(num_bytes);
5887
5888         for (size_t i = 0; i < num_bytes; i++)
5889                 test_pattern[i] = rand();
5890
5891         for (int host_offset = 0; host_offset <= 1; host_offset++) {
5892                 for (int size = 1; size <= 4; size *= 2) {
5893                         for (int offset = 0; offset < 4; offset++) {
5894                                 uint32_t count = test_size / size;
5895                                 size_t host_bufsiz = count * size + host_offset;
5896                                 uint8_t *read_ref = malloc(num_bytes);
5897                                 uint8_t *read_buf = malloc(num_bytes);
5898                                 uint8_t *write_buf = malloc(host_bufsiz);
5899
5900                                 for (size_t i = 0; i < host_bufsiz; i++)
5901                                         write_buf[i] = rand();
5902                                 command_print_sameline(CMD_CTX,
5903                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
5904                                                 size, offset, host_offset ? "un" : "");
5905
5906                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
5907                                 if (retval != ERROR_OK) {
5908                                         command_print(CMD_CTX, "Test pattern write failed");
5909                                         goto nextw;
5910                                 }
5911
5912                                 /* replay on host */
5913                                 memcpy(read_ref, test_pattern, num_bytes);
5914                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
5915
5916                                 struct duration bench;
5917                                 duration_start(&bench);
5918
5919                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
5920                                                 write_buf + host_offset);
5921
5922                                 duration_measure(&bench);
5923
5924                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
5925                                         command_print(CMD_CTX, "Unsupported alignment");
5926                                         goto nextw;
5927                                 } else if (retval != ERROR_OK) {
5928                                         command_print(CMD_CTX, "Memory write failed");
5929                                         goto nextw;
5930                                 }
5931
5932                                 /* read back */
5933                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
5934                                 if (retval != ERROR_OK) {
5935                                         command_print(CMD_CTX, "Test pattern write failed");
5936                                         goto nextw;
5937                                 }
5938
5939                                 /* check result */
5940                                 int result = memcmp(read_ref, read_buf, num_bytes);
5941                                 if (result == 0) {
5942                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
5943                                                         duration_elapsed(&bench),
5944                                                         duration_kbps(&bench, count * size));
5945                                 } else {
5946                                         command_print(CMD_CTX, "Compare failed");
5947                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
5948                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
5949                                 }
5950 nextw:
5951                                 free(read_ref);
5952                                 free(read_buf);
5953                         }
5954                 }
5955         }
5956
5957         free(test_pattern);
5958
5959         if (wa != NULL)
5960                 target_free_working_area(target, wa);
5961         return retval;
5962 }
5963
5964 static const struct command_registration target_exec_command_handlers[] = {
5965         {
5966                 .name = "fast_load_image",
5967                 .handler = handle_fast_load_image_command,
5968                 .mode = COMMAND_ANY,
5969                 .help = "Load image into server memory for later use by "
5970                         "fast_load; primarily for profiling",
5971                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5972                         "[min_address [max_length]]",
5973         },
5974         {
5975                 .name = "fast_load",
5976                 .handler = handle_fast_load_command,
5977                 .mode = COMMAND_EXEC,
5978                 .help = "loads active fast load image to current target "
5979                         "- mainly for profiling purposes",
5980                 .usage = "",
5981         },
5982         {
5983                 .name = "profile",
5984                 .handler = handle_profile_command,
5985                 .mode = COMMAND_EXEC,
5986                 .usage = "seconds filename [start end]",
5987                 .help = "profiling samples the CPU PC",
5988         },
5989         /** @todo don't register virt2phys() unless target supports it */
5990         {
5991                 .name = "virt2phys",
5992                 .handler = handle_virt2phys_command,
5993                 .mode = COMMAND_ANY,
5994                 .help = "translate a virtual address into a physical address",
5995                 .usage = "virtual_address",
5996         },
5997         {
5998                 .name = "reg",
5999                 .handler = handle_reg_command,
6000                 .mode = COMMAND_EXEC,
6001                 .help = "display (reread from target with \"force\") or set a register; "
6002                         "with no arguments, displays all registers and their values",
6003                 .usage = "[(register_number|register_name) [(value|'force')]]",
6004         },
6005         {
6006                 .name = "poll",
6007                 .handler = handle_poll_command,
6008                 .mode = COMMAND_EXEC,
6009                 .help = "poll target state; or reconfigure background polling",
6010                 .usage = "['on'|'off']",
6011         },
6012         {
6013                 .name = "wait_halt",
6014                 .handler = handle_wait_halt_command,
6015                 .mode = COMMAND_EXEC,
6016                 .help = "wait up to the specified number of milliseconds "
6017                         "(default 5000) for a previously requested halt",
6018                 .usage = "[milliseconds]",
6019         },
6020         {
6021                 .name = "halt",
6022                 .handler = handle_halt_command,
6023                 .mode = COMMAND_EXEC,
6024                 .help = "request target to halt, then wait up to the specified"
6025                         "number of milliseconds (default 5000) for it to complete",
6026                 .usage = "[milliseconds]",
6027         },
6028         {
6029                 .name = "resume",
6030                 .handler = handle_resume_command,
6031                 .mode = COMMAND_EXEC,
6032                 .help = "resume target execution from current PC or address",
6033                 .usage = "[address]",
6034         },
6035         {
6036                 .name = "reset",
6037                 .handler = handle_reset_command,
6038                 .mode = COMMAND_EXEC,
6039                 .usage = "[run|halt|init]",
6040                 .help = "Reset all targets into the specified mode."
6041                         "Default reset mode is run, if not given.",
6042         },
6043         {
6044                 .name = "soft_reset_halt",
6045                 .handler = handle_soft_reset_halt_command,
6046                 .mode = COMMAND_EXEC,
6047                 .usage = "",
6048                 .help = "halt the target and do a soft reset",
6049         },
6050         {
6051                 .name = "step",
6052                 .handler = handle_step_command,
6053                 .mode = COMMAND_EXEC,
6054                 .help = "step one instruction from current PC or address",
6055                 .usage = "[address]",
6056         },
6057         {
6058                 .name = "mdw",
6059                 .handler = handle_md_command,
6060                 .mode = COMMAND_EXEC,
6061                 .help = "display memory words",
6062                 .usage = "['phys'] address [count]",
6063         },
6064         {
6065                 .name = "mdh",
6066                 .handler = handle_md_command,
6067                 .mode = COMMAND_EXEC,
6068                 .help = "display memory half-words",
6069                 .usage = "['phys'] address [count]",
6070         },
6071         {
6072                 .name = "mdb",
6073                 .handler = handle_md_command,
6074                 .mode = COMMAND_EXEC,
6075                 .help = "display memory bytes",
6076                 .usage = "['phys'] address [count]",
6077         },
6078         {
6079                 .name = "mww",
6080                 .handler = handle_mw_command,
6081                 .mode = COMMAND_EXEC,
6082                 .help = "write memory word",
6083                 .usage = "['phys'] address value [count]",
6084         },
6085         {
6086                 .name = "mwh",
6087                 .handler = handle_mw_command,
6088                 .mode = COMMAND_EXEC,
6089                 .help = "write memory half-word",
6090                 .usage = "['phys'] address value [count]",
6091         },
6092         {
6093                 .name = "mwb",
6094                 .handler = handle_mw_command,
6095                 .mode = COMMAND_EXEC,
6096                 .help = "write memory byte",
6097                 .usage = "['phys'] address value [count]",
6098         },
6099         {
6100                 .name = "bp",
6101                 .handler = handle_bp_command,
6102                 .mode = COMMAND_EXEC,
6103                 .help = "list or set hardware or software breakpoint",
6104                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
6105         },
6106         {
6107                 .name = "rbp",
6108                 .handler = handle_rbp_command,
6109                 .mode = COMMAND_EXEC,
6110                 .help = "remove breakpoint",
6111                 .usage = "address",
6112         },
6113         {
6114                 .name = "wp",
6115                 .handler = handle_wp_command,
6116                 .mode = COMMAND_EXEC,
6117                 .help = "list (no params) or create watchpoints",
6118                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6119         },
6120         {
6121                 .name = "rwp",
6122                 .handler = handle_rwp_command,
6123                 .mode = COMMAND_EXEC,
6124                 .help = "remove watchpoint",
6125                 .usage = "address",
6126         },
6127         {
6128                 .name = "load_image",
6129                 .handler = handle_load_image_command,
6130                 .mode = COMMAND_EXEC,
6131                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6132                         "[min_address] [max_length]",
6133         },
6134         {
6135                 .name = "dump_image",
6136                 .handler = handle_dump_image_command,
6137                 .mode = COMMAND_EXEC,
6138                 .usage = "filename address size",
6139         },
6140         {
6141                 .name = "verify_image",
6142                 .handler = handle_verify_image_command,
6143                 .mode = COMMAND_EXEC,
6144                 .usage = "filename [offset [type]]",
6145         },
6146         {
6147                 .name = "test_image",
6148                 .handler = handle_test_image_command,
6149                 .mode = COMMAND_EXEC,
6150                 .usage = "filename [offset [type]]",
6151         },
6152         {
6153                 .name = "mem2array",
6154                 .mode = COMMAND_EXEC,
6155                 .jim_handler = jim_mem2array,
6156                 .help = "read 8/16/32 bit memory and return as a TCL array "
6157                         "for script processing",
6158                 .usage = "arrayname bitwidth address count",
6159         },
6160         {
6161                 .name = "array2mem",
6162                 .mode = COMMAND_EXEC,
6163                 .jim_handler = jim_array2mem,
6164                 .help = "convert a TCL array to memory locations "
6165                         "and write the 8/16/32 bit values",
6166                 .usage = "arrayname bitwidth address count",
6167         },
6168         {
6169                 .name = "reset_nag",
6170                 .handler = handle_target_reset_nag,
6171                 .mode = COMMAND_ANY,
6172                 .help = "Nag after each reset about options that could have been "
6173                                 "enabled to improve performance. ",
6174                 .usage = "['enable'|'disable']",
6175         },
6176         {
6177                 .name = "ps",
6178                 .handler = handle_ps_command,
6179                 .mode = COMMAND_EXEC,
6180                 .help = "list all tasks ",
6181                 .usage = " ",
6182         },
6183         {
6184                 .name = "test_mem_access",
6185                 .handler = handle_test_mem_access_command,
6186                 .mode = COMMAND_EXEC,
6187                 .help = "Test the target's memory access functions",
6188                 .usage = "size",
6189         },
6190
6191         COMMAND_REGISTRATION_DONE
6192 };
6193 static int target_register_user_commands(struct command_context *cmd_ctx)
6194 {
6195         int retval = ERROR_OK;
6196         retval = target_request_register_commands(cmd_ctx);
6197         if (retval != ERROR_OK)
6198                 return retval;
6199
6200         retval = trace_register_commands(cmd_ctx);
6201         if (retval != ERROR_OK)
6202                 return retval;
6203
6204
6205         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6206 }