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, target_addr_t address,
  62                 uint32_t count, uint8_t *buffer);
  63 static int target_write_buffer_default(struct target *target, target_addr_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 aarch64_target;
  92 extern struct target_type cortexr4_target;
  93 extern struct target_type arm11_target;
  94 extern struct target_type ls1_sap_target;
  95 extern struct target_type mips_m4k_target;
  96 extern struct target_type avr_target;
  97 extern struct target_type dsp563xx_target;
  98 extern struct target_type dsp5680xx_target;
  99 extern struct target_type testee_target;
 100 extern struct target_type avr32_ap7k_target;
 101 extern struct target_type hla_target;
 102 extern struct target_type nds32_v2_target;
 103 extern struct target_type nds32_v3_target;
 104 extern struct target_type nds32_v3m_target;
 105 extern struct target_type or1k_target;
 106 extern struct target_type quark_x10xx_target;
 107 extern struct target_type quark_d20xx_target;
 108 extern struct target_type stm8_target;
 109
 110 static struct target_type *target_types[] = {
 111         &arm7tdmi_target,
 112         &arm9tdmi_target,
 113         &arm920t_target,
 114         &arm720t_target,
 115         &arm966e_target,
 116         &arm946e_target,
 117         &arm926ejs_target,
 118         &fa526_target,
 119         &feroceon_target,
 120         &dragonite_target,
 121         &xscale_target,
 122         &cortexm_target,
 123         &cortexa_target,
 124         &cortexr4_target,
 125         &arm11_target,
 126         &ls1_sap_target,
 127         &mips_m4k_target,
 128         &avr_target,
 129         &dsp563xx_target,
 130         &dsp5680xx_target,
 131         &testee_target,
 132         &avr32_ap7k_target,
 133         &hla_target,
 134         &nds32_v2_target,
 135         &nds32_v3_target,
 136         &nds32_v3m_target,
 137         &or1k_target,
 138         &quark_x10xx_target,
 139         &quark_d20xx_target,
 140         &stm8_target,
 141 #if BUILD_TARGET64
 142         &aarch64_target,
 143 #endif
 144         NULL,
 145 };
 146
 147 struct target *all_targets;
 148 static struct target_event_callback *target_event_callbacks;
 149 static struct target_timer_callback *target_timer_callbacks;
 150 LIST_HEAD(target_reset_callback_list);
 151 LIST_HEAD(target_trace_callback_list);
 152 static const int polling_interval = 100;
 153
 154 static const Jim_Nvp nvp_assert[] = {
 155         { .name = "assert", NVP_ASSERT },
 156         { .name = "deassert", NVP_DEASSERT },
 157         { .name = "T", NVP_ASSERT },
 158         { .name = "F", NVP_DEASSERT },
 159         { .name = "t", NVP_ASSERT },
 160         { .name = "f", NVP_DEASSERT },
 161         { .name = NULL, .value = -1 }
 162 };
 163
 164 static const Jim_Nvp nvp_error_target[] = {
 165         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 166         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 167         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 168         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 169         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 170         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 171         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 172         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 173         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 174         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 175         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 176         { .value = -1, .name = NULL }
 177 };
 178
 179 static const char *target_strerror_safe(int err)
 180 {
 181         const Jim_Nvp *n;
 182
 183         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 184         if (n->name == NULL)
 185                 return "unknown";
 186         else
 187                 return n->name;
 188 }
 189
 190 static const Jim_Nvp nvp_target_event[] = {
 191
 192         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 193         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 194         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 195         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 196         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 197
 198         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 199         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 200
 201         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 202         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 203         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 204         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 205         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 206         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 207         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 208         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 209
 210         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 211         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 212
 213         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 214         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 215
 216         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 217         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 218
 219         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 220         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 221
 222         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 223         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 224
 225         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 226
 227         { .name = NULL, .value = -1 }
 228 };
 229
 230 static const Jim_Nvp nvp_target_state[] = {
 231         { .name = "unknown", .value = TARGET_UNKNOWN },
 232         { .name = "running", .value = TARGET_RUNNING },
 233         { .name = "halted",  .value = TARGET_HALTED },
 234         { .name = "reset",   .value = TARGET_RESET },
 235         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 236         { .name = NULL, .value = -1 },
 237 };
 238
 239 static const Jim_Nvp nvp_target_debug_reason[] = {
 240         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 241         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 242         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 243         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 244         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 245         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 246         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 247         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 248         { .name = NULL, .value = -1 },
 249 };
 250
 251 static const Jim_Nvp nvp_target_endian[] = {
 252         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 253         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 254         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 255         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 256         { .name = NULL,     .value = -1 },
 257 };
 258
 259 static const Jim_Nvp nvp_reset_modes[] = {
 260         { .name = "unknown", .value = RESET_UNKNOWN },
 261         { .name = "run"    , .value = RESET_RUN },
 262         { .name = "halt"   , .value = RESET_HALT },
 263         { .name = "init"   , .value = RESET_INIT },
 264         { .name = NULL     , .value = -1 },
 265 };
 266
 267 const char *debug_reason_name(struct target *t)
 268 {
 269         const char *cp;
 270
 271         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 272                         t->debug_reason)->name;
 273         if (!cp) {
 274                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 275                 cp = "(*BUG*unknown*BUG*)";
 276         }
 277         return cp;
 278 }
 279
 280 const char *target_state_name(struct target *t)
 281 {
 282         const char *cp;
 283         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 284         if (!cp) {
 285                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 286                 cp = "(*BUG*unknown*BUG*)";
 287         }
 288
 289         if (!target_was_examined(t) && t->defer_examine)
 290                 cp = "examine deferred";
 291
 292         return cp;
 293 }
 294
 295 const char *target_event_name(enum target_event event)
 296 {
 297         const char *cp;
 298         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 299         if (!cp) {
 300                 LOG_ERROR("Invalid target event: %d", (int)(event));
 301                 cp = "(*BUG*unknown*BUG*)";
 302         }
 303         return cp;
 304 }
 305
 306 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 307 {
 308         const char *cp;
 309         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 310         if (!cp) {
 311                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 312                 cp = "(*BUG*unknown*BUG*)";
 313         }
 314         return cp;
 315 }
 316
 317 /* determine the number of the new target */
 318 static int new_target_number(void)
 319 {
 320         struct target *t;
 321         int x;
 322
 323         /* number is 0 based */
 324         x = -1;
 325         t = all_targets;
 326         while (t) {
 327                 if (x < t->target_number)
 328                         x = t->target_number;
 329                 t = t->next;
 330         }
 331         return x + 1;
 332 }
 333
 334 /* read a uint64_t from a buffer in target memory endianness */
 335 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 336 {
 337         if (target->endianness == TARGET_LITTLE_ENDIAN)
 338                 return le_to_h_u64(buffer);
 339         else
 340                 return be_to_h_u64(buffer);
 341 }
 342
 343 /* read a uint32_t from a buffer in target memory endianness */
 344 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 345 {
 346         if (target->endianness == TARGET_LITTLE_ENDIAN)
 347                 return le_to_h_u32(buffer);
 348         else
 349                 return be_to_h_u32(buffer);
 350 }
 351
 352 /* read a uint24_t from a buffer in target memory endianness */
 353 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 354 {
 355         if (target->endianness == TARGET_LITTLE_ENDIAN)
 356                 return le_to_h_u24(buffer);
 357         else
 358                 return be_to_h_u24(buffer);
 359 }
 360
 361 /* read a uint16_t from a buffer in target memory endianness */
 362 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 363 {
 364         if (target->endianness == TARGET_LITTLE_ENDIAN)
 365                 return le_to_h_u16(buffer);
 366         else
 367                 return be_to_h_u16(buffer);
 368 }
 369
 370 /* read a uint8_t from a buffer in target memory endianness */
 371 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 372 {
 373         return *buffer & 0x0ff;
 374 }
 375
 376 /* write a uint64_t to a buffer in target memory endianness */
 377 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 378 {
 379         if (target->endianness == TARGET_LITTLE_ENDIAN)
 380                 h_u64_to_le(buffer, value);
 381         else
 382                 h_u64_to_be(buffer, value);
 383 }
 384
 385 /* write a uint32_t to a buffer in target memory endianness */
 386 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 387 {
 388         if (target->endianness == TARGET_LITTLE_ENDIAN)
 389                 h_u32_to_le(buffer, value);
 390         else
 391                 h_u32_to_be(buffer, value);
 392 }
 393
 394 /* write a uint24_t to a buffer in target memory endianness */
 395 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 396 {
 397         if (target->endianness == TARGET_LITTLE_ENDIAN)
 398                 h_u24_to_le(buffer, value);
 399         else
 400                 h_u24_to_be(buffer, value);
 401 }
 402
 403 /* write a uint16_t to a buffer in target memory endianness */
 404 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 405 {
 406         if (target->endianness == TARGET_LITTLE_ENDIAN)
 407                 h_u16_to_le(buffer, value);
 408         else
 409                 h_u16_to_be(buffer, value);
 410 }
 411
 412 /* write a uint8_t to a buffer in target memory endianness */
 413 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 414 {
 415         *buffer = value;
 416 }
 417
 418 /* write a uint64_t array to a buffer in target memory endianness */
 419 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 420 {
 421         uint32_t i;
 422         for (i = 0; i < count; i++)
 423                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 424 }
 425
 426 /* write a uint32_t array to a buffer in target memory endianness */
 427 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 428 {
 429         uint32_t i;
 430         for (i = 0; i < count; i++)
 431                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 432 }
 433
 434 /* write a uint16_t array to a buffer in target memory endianness */
 435 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 436 {
 437         uint32_t i;
 438         for (i = 0; i < count; i++)
 439                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 440 }
 441
 442 /* write a uint64_t array to a buffer in target memory endianness */
 443 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 444 {
 445         uint32_t i;
 446         for (i = 0; i < count; i++)
 447                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 448 }
 449
 450 /* write a uint32_t array to a buffer in target memory endianness */
 451 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 452 {
 453         uint32_t i;
 454         for (i = 0; i < count; i++)
 455                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 456 }
 457
 458 /* write a uint16_t array to a buffer in target memory endianness */
 459 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 460 {
 461         uint32_t i;
 462         for (i = 0; i < count; i++)
 463                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 464 }
 465
 466 /* return a pointer to a configured target; id is name or number */
 467 struct target *get_target(const char *id)
 468 {
 469         struct target *target;
 470
 471         /* try as tcltarget name */
 472         for (target = all_targets; target; target = target->next) {
 473                 if (target_name(target) == NULL)
 474                         continue;
 475                 if (strcmp(id, target_name(target)) == 0)
 476                         return target;
 477         }
 478
 479         /* It's OK to remove this fallback sometime after August 2010 or so */
 480
 481         /* no match, try as number */
 482         unsigned num;
 483         if (parse_uint(id, &num) != ERROR_OK)
 484                 return NULL;
 485
 486         for (target = all_targets; target; target = target->next) {
 487                 if (target->target_number == (int)num) {
 488                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 489                                         target_name(target), num);
 490                         return target;
 491                 }
 492         }
 493
 494         return NULL;
 495 }
 496
 497 /* returns a pointer to the n-th configured target */
 498 struct target *get_target_by_num(int num)
 499 {
 500         struct target *target = all_targets;
 501
 502         while (target) {
 503                 if (target->target_number == num)
 504                         return target;
 505                 target = target->next;
 506         }
 507
 508         return NULL;
 509 }
 510
 511 struct target *get_current_target(struct command_context *cmd_ctx)
 512 {
 513         struct target *target = get_target_by_num(cmd_ctx->current_target);
 514
 515         if (target == NULL) {
 516                 LOG_ERROR("BUG: current_target out of bounds");
 517                 exit(-1);
 518         }
 519
 520         return target;
 521 }
 522
 523 int target_poll(struct target *target)
 524 {
 525         int retval;
 526
 527         /* We can't poll until after examine */
 528         if (!target_was_examined(target)) {
 529                 /* Fail silently lest we pollute the log */
 530                 return ERROR_FAIL;
 531         }
 532
 533         retval = target->type->poll(target);
 534         if (retval != ERROR_OK)
 535                 return retval;
 536
 537         if (target->halt_issued) {
 538                 if (target->state == TARGET_HALTED)
 539                         target->halt_issued = false;
 540                 else {
 541                         int64_t t = timeval_ms() - target->halt_issued_time;
 542                         if (t > DEFAULT_HALT_TIMEOUT) {
 543                                 target->halt_issued = false;
 544                                 LOG_INFO("Halt timed out, wake up GDB.");
 545                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 546                         }
 547                 }
 548         }
 549
 550         return ERROR_OK;
 551 }
 552
 553 int target_halt(struct target *target)
 554 {
 555         int retval;
 556         /* We can't poll until after examine */
 557         if (!target_was_examined(target)) {
 558                 LOG_ERROR("Target not examined yet");
 559                 return ERROR_FAIL;
 560         }
 561
 562         retval = target->type->halt(target);
 563         if (retval != ERROR_OK)
 564                 return retval;
 565
 566         target->halt_issued = true;
 567         target->halt_issued_time = timeval_ms();
 568
 569         return ERROR_OK;
 570 }
 571
 572 /**
 573  * Make the target (re)start executing using its saved execution
 574  * context (possibly with some modifications).
 575  *
 576  * @param target Which target should start executing.
 577  * @param current True to use the target's saved program counter instead
 578  *      of the address parameter
 579  * @param address Optionally used as the program counter.
 580  * @param handle_breakpoints True iff breakpoints at the resumption PC
 581  *      should be skipped.  (For example, maybe execution was stopped by
 582  *      such a breakpoint, in which case it would be counterprodutive to
 583  *      let it re-trigger.
 584  * @param debug_execution False if all working areas allocated by OpenOCD
 585  *      should be released and/or restored to their original contents.
 586  *      (This would for example be true to run some downloaded "helper"
 587  *      algorithm code, which resides in one such working buffer and uses
 588  *      another for data storage.)
 589  *
 590  * @todo Resolve the ambiguity about what the "debug_execution" flag
 591  * signifies.  For example, Target implementations don't agree on how
 592  * it relates to invalidation of the register cache, or to whether
 593  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 594  * to enable breakpoints when running downloaded "helper" algorithms
 595  * (debug_execution true), since the breakpoints would be set to match
 596  * target firmware being debugged, not the helper algorithm.... and
 597  * enabling them could cause such helpers to malfunction (for example,
 598  * by overwriting data with a breakpoint instruction.  On the other
 599  * hand the infrastructure for running such helpers might use this
 600  * procedure but rely on hardware breakpoint to detect termination.)
 601  */
 602 int target_resume(struct target *target, int current, target_addr_t address,
 603                 int handle_breakpoints, int debug_execution)
 604 {
 605         int retval;
 606
 607         /* We can't poll until after examine */
 608         if (!target_was_examined(target)) {
 609                 LOG_ERROR("Target not examined yet");
 610                 return ERROR_FAIL;
 611         }
 612
 613         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 614
 615         /* note that resume *must* be asynchronous. The CPU can halt before
 616          * we poll. The CPU can even halt at the current PC as a result of
 617          * a software breakpoint being inserted by (a bug?) the application.
 618          */
 619         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 620         if (retval != ERROR_OK)
 621                 return retval;
 622
 623         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 624
 625         return retval;
 626 }
 627
 628 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 629 {
 630         char buf[100];
 631         int retval;
 632         Jim_Nvp *n;
 633         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 634         if (n->name == NULL) {
 635                 LOG_ERROR("invalid reset mode");
 636                 return ERROR_FAIL;
 637         }
 638
 639         struct target *target;
 640         for (target = all_targets; target; target = target->next)
 641                 target_call_reset_callbacks(target, reset_mode);
 642
 643         /* disable polling during reset to make reset event scripts
 644          * more predictable, i.e. dr/irscan & pathmove in events will
 645          * not have JTAG operations injected into the middle of a sequence.
 646          */
 647         bool save_poll = jtag_poll_get_enabled();
 648
 649         jtag_poll_set_enabled(false);
 650
 651         sprintf(buf, "ocd_process_reset %s", n->name);
 652         retval = Jim_Eval(cmd_ctx->interp, buf);
 653
 654         jtag_poll_set_enabled(save_poll);
 655
 656         if (retval != JIM_OK) {
 657                 Jim_MakeErrorMessage(cmd_ctx->interp);
 658                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 659                 return ERROR_FAIL;
 660         }
 661
 662         /* We want any events to be processed before the prompt */
 663         retval = target_call_timer_callbacks_now();
 664
 665         for (target = all_targets; target; target = target->next) {
 666                 target->type->check_reset(target);
 667                 target->running_alg = false;
 668         }
 669
 670         return retval;
 671 }
 672
 673 static int identity_virt2phys(struct target *target,
 674                 target_addr_t virtual, target_addr_t *physical)
 675 {
 676         *physical = virtual;
 677         return ERROR_OK;
 678 }
 679
 680 static int no_mmu(struct target *target, int *enabled)
 681 {
 682         *enabled = 0;
 683         return ERROR_OK;
 684 }
 685
 686 static int default_examine(struct target *target)
 687 {
 688         target_set_examined(target);
 689         return ERROR_OK;
 690 }
 691
 692 /* no check by default */
 693 static int default_check_reset(struct target *target)
 694 {
 695         return ERROR_OK;
 696 }
 697
 698 int target_examine_one(struct target *target)
 699 {
 700         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 701
 702         int retval = target->type->examine(target);
 703         if (retval != ERROR_OK)
 704                 return retval;
 705
 706         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 707
 708         return ERROR_OK;
 709 }
 710
 711 static int jtag_enable_callback(enum jtag_event event, void *priv)
 712 {
 713         struct target *target = priv;
 714
 715         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 716                 return ERROR_OK;
 717
 718         jtag_unregister_event_callback(jtag_enable_callback, target);
 719
 720         return target_examine_one(target);
 721 }
 722
 723 /* Targets that correctly implement init + examine, i.e.
 724  * no communication with target during init:
 725  *
 726  * XScale
 727  */
 728 int target_examine(void)
 729 {
 730         int retval = ERROR_OK;
 731         struct target *target;
 732
 733         for (target = all_targets; target; target = target->next) {
 734                 /* defer examination, but don't skip it */
 735                 if (!target->tap->enabled) {
 736                         jtag_register_event_callback(jtag_enable_callback,
 737                                         target);
 738                         continue;
 739                 }
 740
 741                 if (target->defer_examine)
 742                         continue;
 743
 744                 retval = target_examine_one(target);
 745                 if (retval != ERROR_OK)
 746                         return retval;
 747         }
 748         return retval;
 749 }
 750
 751 const char *target_type_name(struct target *target)
 752 {
 753         return target->type->name;
 754 }
 755
 756 static int target_soft_reset_halt(struct target *target)
 757 {
 758         if (!target_was_examined(target)) {
 759                 LOG_ERROR("Target not examined yet");
 760                 return ERROR_FAIL;
 761         }
 762         if (!target->type->soft_reset_halt) {
 763                 LOG_ERROR("Target %s does not support soft_reset_halt",
 764                                 target_name(target));
 765                 return ERROR_FAIL;
 766         }
 767         return target->type->soft_reset_halt(target);
 768 }
 769
 770 /**
 771  * Downloads a target-specific native code algorithm to the target,
 772  * and executes it.  * Note that some targets may need to set up, enable,
 773  * and tear down a breakpoint (hard or * soft) to detect algorithm
 774  * termination, while others may support  lower overhead schemes where
 775  * soft breakpoints embedded in the algorithm automatically terminate the
 776  * algorithm.
 777  *
 778  * @param target used to run the algorithm
 779  * @param arch_info target-specific description of the algorithm.
 780  */
 781 int target_run_algorithm(struct target *target,
 782                 int num_mem_params, struct mem_param *mem_params,
 783                 int num_reg_params, struct reg_param *reg_param,
 784                 uint32_t entry_point, uint32_t exit_point,
 785                 int timeout_ms, void *arch_info)
 786 {
 787         int retval = ERROR_FAIL;
 788
 789         if (!target_was_examined(target)) {
 790                 LOG_ERROR("Target not examined yet");
 791                 goto done;
 792         }
 793         if (!target->type->run_algorithm) {
 794                 LOG_ERROR("Target type '%s' does not support %s",
 795                                 target_type_name(target), __func__);
 796                 goto done;
 797         }
 798
 799         target->running_alg = true;
 800         retval = target->type->run_algorithm(target,
 801                         num_mem_params, mem_params,
 802                         num_reg_params, reg_param,
 803                         entry_point, exit_point, timeout_ms, arch_info);
 804         target->running_alg = false;
 805
 806 done:
 807         return retval;
 808 }
 809
 810 /**
 811  * Executes a target-specific native code algorithm and leaves it running.
 812  *
 813  * @param target used to run the algorithm
 814  * @param arch_info target-specific description of the algorithm.
 815  */
 816 int target_start_algorithm(struct target *target,
 817                 int num_mem_params, struct mem_param *mem_params,
 818                 int num_reg_params, struct reg_param *reg_params,
 819                 uint32_t entry_point, uint32_t exit_point,
 820                 void *arch_info)
 821 {
 822         int retval = ERROR_FAIL;
 823
 824         if (!target_was_examined(target)) {
 825                 LOG_ERROR("Target not examined yet");
 826                 goto done;
 827         }
 828         if (!target->type->start_algorithm) {
 829                 LOG_ERROR("Target type '%s' does not support %s",
 830                                 target_type_name(target), __func__);
 831                 goto done;
 832         }
 833         if (target->running_alg) {
 834                 LOG_ERROR("Target is already running an algorithm");
 835                 goto done;
 836         }
 837
 838         target->running_alg = true;
 839         retval = target->type->start_algorithm(target,
 840                         num_mem_params, mem_params,
 841                         num_reg_params, reg_params,
 842                         entry_point, exit_point, arch_info);
 843
 844 done:
 845         return retval;
 846 }
 847
 848 /**
 849  * Waits for an algorithm started with target_start_algorithm() to complete.
 850  *
 851  * @param target used to run the algorithm
 852  * @param arch_info target-specific description of the algorithm.
 853  */
 854 int target_wait_algorithm(struct target *target,
 855                 int num_mem_params, struct mem_param *mem_params,
 856                 int num_reg_params, struct reg_param *reg_params,
 857                 uint32_t exit_point, int timeout_ms,
 858                 void *arch_info)
 859 {
 860         int retval = ERROR_FAIL;
 861
 862         if (!target->type->wait_algorithm) {
 863                 LOG_ERROR("Target type '%s' does not support %s",
 864                                 target_type_name(target), __func__);
 865                 goto done;
 866         }
 867         if (!target->running_alg) {
 868                 LOG_ERROR("Target is not running an algorithm");
 869                 goto done;
 870         }
 871
 872         retval = target->type->wait_algorithm(target,
 873                         num_mem_params, mem_params,
 874                         num_reg_params, reg_params,
 875                         exit_point, timeout_ms, arch_info);
 876         if (retval != ERROR_TARGET_TIMEOUT)
 877                 target->running_alg = false;
 878
 879 done:
 880         return retval;
 881 }
 882
 883 /**
 884  * Streams data to a circular buffer on target intended for consumption by code
 885  * running asynchronously on target.
 886  *
 887  * This is intended for applications where target-specific native code runs
 888  * on the target, receives data from the circular buffer, does something with
 889  * it (most likely writing it to a flash memory), and advances the circular
 890  * buffer pointer.
 891  *
 892  * This assumes that the helper algorithm has already been loaded to the target,
 893  * but has not been started yet. Given memory and register parameters are passed
 894  * to the algorithm.
 895  *
 896  * The buffer is defined by (buffer_start, buffer_size) arguments and has the
 897  * following format:
 898  *
 899  *     [buffer_start + 0, buffer_start + 4):
 900  *         Write Pointer address (aka head). Written and updated by this
 901  *         routine when new data is written to the circular buffer.
 902  *     [buffer_start + 4, buffer_start + 8):
 903  *         Read Pointer address (aka tail). Updated by code running on the
 904  *         target after it consumes data.
 905  *     [buffer_start + 8, buffer_start + buffer_size):
 906  *         Circular buffer contents.
 907  *
 908  * See contrib/loaders/flash/stm32f1x.S for an example.
 909  *
 910  * @param target used to run the algorithm
 911  * @param buffer address on the host where data to be sent is located
 912  * @param count number of blocks to send
 913  * @param block_size size in bytes of each block
 914  * @param num_mem_params count of memory-based params to pass to algorithm
 915  * @param mem_params memory-based params to pass to algorithm
 916  * @param num_reg_params count of register-based params to pass to algorithm
 917  * @param reg_params memory-based params to pass to algorithm
 918  * @param buffer_start address on the target of the circular buffer structure
 919  * @param buffer_size size of the circular buffer structure
 920  * @param entry_point address on the target to execute to start the algorithm
 921  * @param exit_point address at which to set a breakpoint to catch the
 922  *     end of the algorithm; can be 0 if target triggers a breakpoint itself
 923  */
 924
 925 int target_run_flash_async_algorithm(struct target *target,
 926                 const uint8_t *buffer, uint32_t count, int block_size,
 927                 int num_mem_params, struct mem_param *mem_params,
 928                 int num_reg_params, struct reg_param *reg_params,
 929                 uint32_t buffer_start, uint32_t buffer_size,
 930                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 931 {
 932         int retval;
 933         int timeout = 0;
 934
 935         const uint8_t *buffer_orig = buffer;
 936
 937         /* Set up working area. First word is write pointer, second word is read pointer,
 938          * rest is fifo data area. */
 939         uint32_t wp_addr = buffer_start;
 940         uint32_t rp_addr = buffer_start + 4;
 941         uint32_t fifo_start_addr = buffer_start + 8;
 942         uint32_t fifo_end_addr = buffer_start + buffer_size;
 943
 944         uint32_t wp = fifo_start_addr;
 945         uint32_t rp = fifo_start_addr;
 946
 947         /* validate block_size is 2^n */
 948         assert(!block_size || !(block_size & (block_size - 1)));
 949
 950         retval = target_write_u32(target, wp_addr, wp);
 951         if (retval != ERROR_OK)
 952                 return retval;
 953         retval = target_write_u32(target, rp_addr, rp);
 954         if (retval != ERROR_OK)
 955                 return retval;
 956
 957         /* Start up algorithm on target and let it idle while writing the first chunk */
 958         retval = target_start_algorithm(target, num_mem_params, mem_params,
 959                         num_reg_params, reg_params,
 960                         entry_point,
 961                         exit_point,
 962                         arch_info);
 963
 964         if (retval != ERROR_OK) {
 965                 LOG_ERROR("error starting target flash write algorithm");
 966                 return retval;
 967         }
 968
 969         while (count > 0) {
 970
 971                 retval = target_read_u32(target, rp_addr, &rp);
 972                 if (retval != ERROR_OK) {
 973                         LOG_ERROR("failed to get read pointer");
 974                         break;
 975                 }
 976
 977                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 978                         (size_t) (buffer - buffer_orig), count, wp, rp);
 979
 980                 if (rp == 0) {
 981                         LOG_ERROR("flash write algorithm aborted by target");
 982                         retval = ERROR_FLASH_OPERATION_FAILED;
 983                         break;
 984                 }
 985
 986                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 987                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 988                         break;
 989                 }
 990
 991                 /* Count the number of bytes available in the fifo without
 992                  * crossing the wrap around. Make sure to not fill it completely,
 993                  * because that would make wp == rp and that's the empty condition. */
 994                 uint32_t thisrun_bytes;
 995                 if (rp > wp)
 996                         thisrun_bytes = rp - wp - block_size;
 997                 else if (rp > fifo_start_addr)
 998                         thisrun_bytes = fifo_end_addr - wp;
 999                 else
1000                         thisrun_bytes = fifo_end_addr - wp - block_size;
1001
1002                 if (thisrun_bytes == 0) {
1003                         /* Throttle polling a bit if transfer is (much) faster than flash
1004                          * programming. The exact delay shouldn't matter as long as it's
1005                          * less than buffer size / flash speed. This is very unlikely to
1006                          * run when using high latency connections such as USB. */
1007                         alive_sleep(10);
1008
1009                         /* to stop an infinite loop on some targets check and increment a timeout
1010                          * this issue was observed on a stellaris using the new ICDI interface */
1011                         if (timeout++ >= 500) {
1012                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1013                                 return ERROR_FLASH_OPERATION_FAILED;
1014                         }
1015                         continue;
1016                 }
1017
1018                 /* reset our timeout */
1019                 timeout = 0;
1020
1021                 /* Limit to the amount of data we actually want to write */
1022                 if (thisrun_bytes > count * block_size)
1023                         thisrun_bytes = count * block_size;
1024
1025                 /* Write data to fifo */
1026                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1027                 if (retval != ERROR_OK)
1028                         break;
1029
1030                 /* Update counters and wrap write pointer */
1031                 buffer += thisrun_bytes;
1032                 count -= thisrun_bytes / block_size;
1033                 wp += thisrun_bytes;
1034                 if (wp >= fifo_end_addr)
1035                         wp = fifo_start_addr;
1036
1037                 /* Store updated write pointer to target */
1038                 retval = target_write_u32(target, wp_addr, wp);
1039                 if (retval != ERROR_OK)
1040                         break;
1041         }
1042
1043         if (retval != ERROR_OK) {
1044                 /* abort flash write algorithm on target */
1045                 target_write_u32(target, wp_addr, 0);
1046         }
1047
1048         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1049                         num_reg_params, reg_params,
1050                         exit_point,
1051                         10000,
1052                         arch_info);
1053
1054         if (retval2 != ERROR_OK) {
1055                 LOG_ERROR("error waiting for target flash write algorithm");
1056                 retval = retval2;
1057         }
1058
1059         if (retval == ERROR_OK) {
1060                 /* check if algorithm set rp = 0 after fifo writer loop finished */
1061                 retval = target_read_u32(target, rp_addr, &rp);
1062                 if (retval == ERROR_OK && rp == 0) {
1063                         LOG_ERROR("flash write algorithm aborted by target");
1064                         retval = ERROR_FLASH_OPERATION_FAILED;
1065                 }
1066         }
1067
1068         return retval;
1069 }
1070
1071 int target_read_memory(struct target *target,
1072                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1073 {
1074         if (!target_was_examined(target)) {
1075                 LOG_ERROR("Target not examined yet");
1076                 return ERROR_FAIL;
1077         }
1078         if (!target->type->read_memory) {
1079                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1080                 return ERROR_FAIL;
1081         }
1082         return target->type->read_memory(target, address, size, count, buffer);
1083 }
1084
1085 int target_read_phys_memory(struct target *target,
1086                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1087 {
1088         if (!target_was_examined(target)) {
1089                 LOG_ERROR("Target not examined yet");
1090                 return ERROR_FAIL;
1091         }
1092         if (!target->type->read_phys_memory) {
1093                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1094                 return ERROR_FAIL;
1095         }
1096         return target->type->read_phys_memory(target, address, size, count, buffer);
1097 }
1098
1099 int target_write_memory(struct target *target,
1100                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1101 {
1102         if (!target_was_examined(target)) {
1103                 LOG_ERROR("Target not examined yet");
1104                 return ERROR_FAIL;
1105         }
1106         if (!target->type->write_memory) {
1107                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1108                 return ERROR_FAIL;
1109         }
1110         return target->type->write_memory(target, address, size, count, buffer);
1111 }
1112
1113 int target_write_phys_memory(struct target *target,
1114                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1115 {
1116         if (!target_was_examined(target)) {
1117                 LOG_ERROR("Target not examined yet");
1118                 return ERROR_FAIL;
1119         }
1120         if (!target->type->write_phys_memory) {
1121                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1122                 return ERROR_FAIL;
1123         }
1124         return target->type->write_phys_memory(target, address, size, count, buffer);
1125 }
1126
1127 int target_add_breakpoint(struct target *target,
1128                 struct breakpoint *breakpoint)
1129 {
1130         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1131                 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1132                 return ERROR_TARGET_NOT_HALTED;
1133         }
1134         return target->type->add_breakpoint(target, breakpoint);
1135 }
1136
1137 int target_add_context_breakpoint(struct target *target,
1138                 struct breakpoint *breakpoint)
1139 {
1140         if (target->state != TARGET_HALTED) {
1141                 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1142                 return ERROR_TARGET_NOT_HALTED;
1143         }
1144         return target->type->add_context_breakpoint(target, breakpoint);
1145 }
1146
1147 int target_add_hybrid_breakpoint(struct target *target,
1148                 struct breakpoint *breakpoint)
1149 {
1150         if (target->state != TARGET_HALTED) {
1151                 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1152                 return ERROR_TARGET_NOT_HALTED;
1153         }
1154         return target->type->add_hybrid_breakpoint(target, breakpoint);
1155 }
1156
1157 int target_remove_breakpoint(struct target *target,
1158                 struct breakpoint *breakpoint)
1159 {
1160         return target->type->remove_breakpoint(target, breakpoint);
1161 }
1162
1163 int target_add_watchpoint(struct target *target,
1164                 struct watchpoint *watchpoint)
1165 {
1166         if (target->state != TARGET_HALTED) {
1167                 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1168                 return ERROR_TARGET_NOT_HALTED;
1169         }
1170         return target->type->add_watchpoint(target, watchpoint);
1171 }
1172 int target_remove_watchpoint(struct target *target,
1173                 struct watchpoint *watchpoint)
1174 {
1175         return target->type->remove_watchpoint(target, watchpoint);
1176 }
1177 int target_hit_watchpoint(struct target *target,
1178                 struct watchpoint **hit_watchpoint)
1179 {
1180         if (target->state != TARGET_HALTED) {
1181                 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1182                 return ERROR_TARGET_NOT_HALTED;
1183         }
1184
1185         if (target->type->hit_watchpoint == NULL) {
1186                 /* For backward compatible, if hit_watchpoint is not implemented,
1187                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1188                  * information. */
1189                 return ERROR_FAIL;
1190         }
1191
1192         return target->type->hit_watchpoint(target, hit_watchpoint);
1193 }
1194
1195 int target_get_gdb_reg_list(struct target *target,
1196                 struct reg **reg_list[], int *reg_list_size,
1197                 enum target_register_class reg_class)
1198 {
1199         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1200 }
1201 int target_step(struct target *target,
1202                 int current, target_addr_t address, int handle_breakpoints)
1203 {
1204         return target->type->step(target, current, address, handle_breakpoints);
1205 }
1206
1207 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1208 {
1209         if (target->state != TARGET_HALTED) {
1210                 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1211                 return ERROR_TARGET_NOT_HALTED;
1212         }
1213         return target->type->get_gdb_fileio_info(target, fileio_info);
1214 }
1215
1216 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1217 {
1218         if (target->state != TARGET_HALTED) {
1219                 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1220                 return ERROR_TARGET_NOT_HALTED;
1221         }
1222         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1223 }
1224
1225 int target_profiling(struct target *target, uint32_t *samples,
1226                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1227 {
1228         if (target->state != TARGET_HALTED) {
1229                 LOG_WARNING("target %s is not halted (profiling)", target->cmd_name);
1230                 return ERROR_TARGET_NOT_HALTED;
1231         }
1232         return target->type->profiling(target, samples, max_num_samples,
1233                         num_samples, seconds);
1234 }
1235
1236 /**
1237  * Reset the @c examined flag for the given target.
1238  * Pure paranoia -- targets are zeroed on allocation.
1239  */
1240 static void target_reset_examined(struct target *target)
1241 {
1242         target->examined = false;
1243 }
1244
1245 static int handle_target(void *priv);
1246
1247 static int target_init_one(struct command_context *cmd_ctx,
1248                 struct target *target)
1249 {
1250         target_reset_examined(target);
1251
1252         struct target_type *type = target->type;
1253         if (type->examine == NULL)
1254                 type->examine = default_examine;
1255
1256         if (type->check_reset == NULL)
1257                 type->check_reset = default_check_reset;
1258
1259         assert(type->init_target != NULL);
1260
1261         int retval = type->init_target(cmd_ctx, target);
1262         if (ERROR_OK != retval) {
1263                 LOG_ERROR("target '%s' init failed", target_name(target));
1264                 return retval;
1265         }
1266
1267         /* Sanity-check MMU support ... stub in what we must, to help
1268          * implement it in stages, but warn if we need to do so.
1269          */
1270         if (type->mmu) {
1271                 if (type->virt2phys == NULL) {
1272                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1273                         type->virt2phys = identity_virt2phys;
1274                 }
1275         } else {
1276                 /* Make sure no-MMU targets all behave the same:  make no
1277                  * distinction between physical and virtual addresses, and
1278                  * ensure that virt2phys() is always an identity mapping.
1279                  */
1280                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1281                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1282
1283                 type->mmu = no_mmu;
1284                 type->write_phys_memory = type->write_memory;
1285                 type->read_phys_memory = type->read_memory;
1286                 type->virt2phys = identity_virt2phys;
1287         }
1288
1289         if (target->type->read_buffer == NULL)
1290                 target->type->read_buffer = target_read_buffer_default;
1291
1292         if (target->type->write_buffer == NULL)
1293                 target->type->write_buffer = target_write_buffer_default;
1294
1295         if (target->type->get_gdb_fileio_info == NULL)
1296                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1297
1298         if (target->type->gdb_fileio_end == NULL)
1299                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1300
1301         if (target->type->profiling == NULL)
1302                 target->type->profiling = target_profiling_default;
1303
1304         return ERROR_OK;
1305 }
1306
1307 static int target_init(struct command_context *cmd_ctx)
1308 {
1309         struct target *target;
1310         int retval;
1311
1312         for (target = all_targets; target; target = target->next) {
1313                 retval = target_init_one(cmd_ctx, target);
1314                 if (ERROR_OK != retval)
1315                         return retval;
1316         }
1317
1318         if (!all_targets)
1319                 return ERROR_OK;
1320
1321         retval = target_register_user_commands(cmd_ctx);
1322         if (ERROR_OK != retval)
1323                 return retval;
1324
1325         retval = target_register_timer_callback(&handle_target,
1326                         polling_interval, 1, cmd_ctx->interp);
1327         if (ERROR_OK != retval)
1328                 return retval;
1329
1330         return ERROR_OK;
1331 }
1332
1333 COMMAND_HANDLER(handle_target_init_command)
1334 {
1335         int retval;
1336
1337         if (CMD_ARGC != 0)
1338                 return ERROR_COMMAND_SYNTAX_ERROR;
1339
1340         static bool target_initialized;
1341         if (target_initialized) {
1342                 LOG_INFO("'target init' has already been called");
1343                 return ERROR_OK;
1344         }
1345         target_initialized = true;
1346
1347         retval = command_run_line(CMD_CTX, "init_targets");
1348         if (ERROR_OK != retval)
1349                 return retval;
1350
1351         retval = command_run_line(CMD_CTX, "init_target_events");
1352         if (ERROR_OK != retval)
1353                 return retval;
1354
1355         retval = command_run_line(CMD_CTX, "init_board");
1356         if (ERROR_OK != retval)
1357                 return retval;
1358
1359         LOG_DEBUG("Initializing targets...");
1360         return target_init(CMD_CTX);
1361 }
1362
1363 int target_register_event_callback(int (*callback)(struct target *target,
1364                 enum target_event event, void *priv), void *priv)
1365 {
1366         struct target_event_callback **callbacks_p = &target_event_callbacks;
1367
1368         if (callback == NULL)
1369                 return ERROR_COMMAND_SYNTAX_ERROR;
1370
1371         if (*callbacks_p) {
1372                 while ((*callbacks_p)->next)
1373                         callbacks_p = &((*callbacks_p)->next);
1374                 callbacks_p = &((*callbacks_p)->next);
1375         }
1376
1377         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1378         (*callbacks_p)->callback = callback;
1379         (*callbacks_p)->priv = priv;
1380         (*callbacks_p)->next = NULL;
1381
1382         return ERROR_OK;
1383 }
1384
1385 int target_register_reset_callback(int (*callback)(struct target *target,
1386                 enum target_reset_mode reset_mode, void *priv), void *priv)
1387 {
1388         struct target_reset_callback *entry;
1389
1390         if (callback == NULL)
1391                 return ERROR_COMMAND_SYNTAX_ERROR;
1392
1393         entry = malloc(sizeof(struct target_reset_callback));
1394         if (entry == NULL) {
1395                 LOG_ERROR("error allocating buffer for reset callback entry");
1396                 return ERROR_COMMAND_SYNTAX_ERROR;
1397         }
1398
1399         entry->callback = callback;
1400         entry->priv = priv;
1401         list_add(&entry->list, &target_reset_callback_list);
1402
1403
1404         return ERROR_OK;
1405 }
1406
1407 int target_register_trace_callback(int (*callback)(struct target *target,
1408                 size_t len, uint8_t *data, void *priv), void *priv)
1409 {
1410         struct target_trace_callback *entry;
1411
1412         if (callback == NULL)
1413                 return ERROR_COMMAND_SYNTAX_ERROR;
1414
1415         entry = malloc(sizeof(struct target_trace_callback));
1416         if (entry == NULL) {
1417                 LOG_ERROR("error allocating buffer for trace callback entry");
1418                 return ERROR_COMMAND_SYNTAX_ERROR;
1419         }
1420
1421         entry->callback = callback;
1422         entry->priv = priv;
1423         list_add(&entry->list, &target_trace_callback_list);
1424
1425
1426         return ERROR_OK;
1427 }
1428
1429 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1430 {
1431         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1432
1433         if (callback == NULL)
1434                 return ERROR_COMMAND_SYNTAX_ERROR;
1435
1436         if (*callbacks_p) {
1437                 while ((*callbacks_p)->next)
1438                         callbacks_p = &((*callbacks_p)->next);
1439                 callbacks_p = &((*callbacks_p)->next);
1440         }
1441
1442         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1443         (*callbacks_p)->callback = callback;
1444         (*callbacks_p)->periodic = periodic;
1445         (*callbacks_p)->time_ms = time_ms;
1446         (*callbacks_p)->removed = false;
1447
1448         gettimeofday(&(*callbacks_p)->when, NULL);
1449         timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1450
1451         (*callbacks_p)->priv = priv;
1452         (*callbacks_p)->next = NULL;
1453
1454         return ERROR_OK;
1455 }
1456
1457 int target_unregister_event_callback(int (*callback)(struct target *target,
1458                 enum target_event event, void *priv), void *priv)
1459 {
1460         struct target_event_callback **p = &target_event_callbacks;
1461         struct target_event_callback *c = target_event_callbacks;
1462
1463         if (callback == NULL)
1464                 return ERROR_COMMAND_SYNTAX_ERROR;
1465
1466         while (c) {
1467                 struct target_event_callback *next = c->next;
1468                 if ((c->callback == callback) && (c->priv == priv)) {
1469                         *p = next;
1470                         free(c);
1471                         return ERROR_OK;
1472                 } else
1473                         p = &(c->next);
1474                 c = next;
1475         }
1476
1477         return ERROR_OK;
1478 }
1479
1480 int target_unregister_reset_callback(int (*callback)(struct target *target,
1481                 enum target_reset_mode reset_mode, void *priv), void *priv)
1482 {
1483         struct target_reset_callback *entry;
1484
1485         if (callback == NULL)
1486                 return ERROR_COMMAND_SYNTAX_ERROR;
1487
1488         list_for_each_entry(entry, &target_reset_callback_list, list) {
1489                 if (entry->callback == callback && entry->priv == priv) {
1490                         list_del(&entry->list);
1491                         free(entry);
1492                         break;
1493                 }
1494         }
1495
1496         return ERROR_OK;
1497 }
1498
1499 int target_unregister_trace_callback(int (*callback)(struct target *target,
1500                 size_t len, uint8_t *data, void *priv), void *priv)
1501 {
1502         struct target_trace_callback *entry;
1503
1504         if (callback == NULL)
1505                 return ERROR_COMMAND_SYNTAX_ERROR;
1506
1507         list_for_each_entry(entry, &target_trace_callback_list, list) {
1508                 if (entry->callback == callback && entry->priv == priv) {
1509                         list_del(&entry->list);
1510                         free(entry);
1511                         break;
1512                 }
1513         }
1514
1515         return ERROR_OK;
1516 }
1517
1518 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1519 {
1520         if (callback == NULL)
1521                 return ERROR_COMMAND_SYNTAX_ERROR;
1522
1523         for (struct target_timer_callback *c = target_timer_callbacks;
1524              c; c = c->next) {
1525                 if ((c->callback == callback) && (c->priv == priv)) {
1526                         c->removed = true;
1527                         return ERROR_OK;
1528                 }
1529         }
1530
1531         return ERROR_FAIL;
1532 }
1533
1534 int target_call_event_callbacks(struct target *target, enum target_event event)
1535 {
1536         struct target_event_callback *callback = target_event_callbacks;
1537         struct target_event_callback *next_callback;
1538
1539         if (event == TARGET_EVENT_HALTED) {
1540                 /* execute early halted first */
1541                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1542         }
1543
1544         LOG_DEBUG("target event %i (%s)", event,
1545                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1546
1547         target_handle_event(target, event);
1548
1549         while (callback) {
1550                 next_callback = callback->next;
1551                 callback->callback(target, event, callback->priv);
1552                 callback = next_callback;
1553         }
1554
1555         return ERROR_OK;
1556 }
1557
1558 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1559 {
1560         struct target_reset_callback *callback;
1561
1562         LOG_DEBUG("target reset %i (%s)", reset_mode,
1563                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1564
1565         list_for_each_entry(callback, &target_reset_callback_list, list)
1566                 callback->callback(target, reset_mode, callback->priv);
1567
1568         return ERROR_OK;
1569 }
1570
1571 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1572 {
1573         struct target_trace_callback *callback;
1574
1575         list_for_each_entry(callback, &target_trace_callback_list, list)
1576                 callback->callback(target, len, data, callback->priv);
1577
1578         return ERROR_OK;
1579 }
1580
1581 static int target_timer_callback_periodic_restart(
1582                 struct target_timer_callback *cb, struct timeval *now)
1583 {
1584         cb->when = *now;
1585         timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1586         return ERROR_OK;
1587 }
1588
1589 static int target_call_timer_callback(struct target_timer_callback *cb,
1590                 struct timeval *now)
1591 {
1592         cb->callback(cb->priv);
1593
1594         if (cb->periodic)
1595                 return target_timer_callback_periodic_restart(cb, now);
1596
1597         return target_unregister_timer_callback(cb->callback, cb->priv);
1598 }
1599
1600 static int target_call_timer_callbacks_check_time(int checktime)
1601 {
1602         static bool callback_processing;
1603
1604         /* Do not allow nesting */
1605         if (callback_processing)
1606                 return ERROR_OK;
1607
1608         callback_processing = true;
1609
1610         keep_alive();
1611
1612         struct timeval now;
1613         gettimeofday(&now, NULL);
1614
1615         /* Store an address of the place containing a pointer to the
1616          * next item; initially, that's a standalone "root of the
1617          * list" variable. */
1618         struct target_timer_callback **callback = &target_timer_callbacks;
1619         while (*callback) {
1620                 if ((*callback)->removed) {
1621                         struct target_timer_callback *p = *callback;
1622                         *callback = (*callback)->next;
1623                         free(p);
1624                         continue;
1625                 }
1626
1627                 bool call_it = (*callback)->callback &&
1628                         ((!checktime && (*callback)->periodic) ||
1629                          timeval_compare(&now, &(*callback)->when) >= 0);
1630
1631                 if (call_it)
1632                         target_call_timer_callback(*callback, &now);
1633
1634                 callback = &(*callback)->next;
1635         }
1636
1637         callback_processing = false;
1638         return ERROR_OK;
1639 }
1640
1641 int target_call_timer_callbacks(void)
1642 {
1643         return target_call_timer_callbacks_check_time(1);
1644 }
1645
1646 /* invoke periodic callbacks immediately */
1647 int target_call_timer_callbacks_now(void)
1648 {
1649         return target_call_timer_callbacks_check_time(0);
1650 }
1651
1652 /* Prints the working area layout for debug purposes */
1653 static void print_wa_layout(struct target *target)
1654 {
1655         struct working_area *c = target->working_areas;
1656
1657         while (c) {
1658                 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1659                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1660                         c->address, c->address + c->size - 1, c->size);
1661                 c = c->next;
1662         }
1663 }
1664
1665 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1666 static void target_split_working_area(struct working_area *area, uint32_t size)
1667 {
1668         assert(area->free); /* Shouldn't split an allocated area */
1669         assert(size <= area->size); /* Caller should guarantee this */
1670
1671         /* Split only if not already the right size */
1672         if (size < area->size) {
1673                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1674
1675                 if (new_wa == NULL)
1676                         return;
1677
1678                 new_wa->next = area->next;
1679                 new_wa->size = area->size - size;
1680                 new_wa->address = area->address + size;
1681                 new_wa->backup = NULL;
1682                 new_wa->user = NULL;
1683                 new_wa->free = true;
1684
1685                 area->next = new_wa;
1686                 area->size = size;
1687
1688                 /* If backup memory was allocated to this area, it has the wrong size
1689                  * now so free it and it will be reallocated if/when needed */
1690                 if (area->backup) {
1691                         free(area->backup);
1692                         area->backup = NULL;
1693                 }
1694         }
1695 }
1696
1697 /* Merge all adjacent free areas into one */
1698 static void target_merge_working_areas(struct target *target)
1699 {
1700         struct working_area *c = target->working_areas;
1701
1702         while (c && c->next) {
1703                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1704
1705                 /* Find two adjacent free areas */
1706                 if (c->free && c->next->free) {
1707                         /* Merge the last into the first */
1708                         c->size += c->next->size;
1709
1710                         /* Remove the last */
1711                         struct working_area *to_be_freed = c->next;
1712                         c->next = c->next->next;
1713                         if (to_be_freed->backup)
1714                                 free(to_be_freed->backup);
1715                         free(to_be_freed);
1716
1717                         /* If backup memory was allocated to the remaining area, it's has
1718                          * the wrong size now */
1719                         if (c->backup) {
1720                                 free(c->backup);
1721                                 c->backup = NULL;
1722                         }
1723                 } else {
1724                         c = c->next;
1725                 }
1726         }
1727 }
1728
1729 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1730 {
1731         /* Reevaluate working area address based on MMU state*/
1732         if (target->working_areas == NULL) {
1733                 int retval;
1734                 int enabled;
1735
1736                 retval = target->type->mmu(target, &enabled);
1737                 if (retval != ERROR_OK)
1738                         return retval;
1739
1740                 if (!enabled) {
1741                         if (target->working_area_phys_spec) {
1742                                 LOG_DEBUG("MMU disabled, using physical "
1743                                         "address for working memory " TARGET_ADDR_FMT,
1744                                         target->working_area_phys);
1745                                 target->working_area = target->working_area_phys;
1746                         } else {
1747                                 LOG_ERROR("No working memory available. "
1748                                         "Specify -work-area-phys to target.");
1749                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1750                         }
1751                 } else {
1752                         if (target->working_area_virt_spec) {
1753                                 LOG_DEBUG("MMU enabled, using virtual "
1754                                         "address for working memory " TARGET_ADDR_FMT,
1755                                         target->working_area_virt);
1756                                 target->working_area = target->working_area_virt;
1757                         } else {
1758                                 LOG_ERROR("No working memory available. "
1759                                         "Specify -work-area-virt to target.");
1760                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1761                         }
1762                 }
1763
1764                 /* Set up initial working area on first call */
1765                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1766                 if (new_wa) {
1767                         new_wa->next = NULL;
1768                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1769                         new_wa->address = target->working_area;
1770                         new_wa->backup = NULL;
1771                         new_wa->user = NULL;
1772                         new_wa->free = true;
1773                 }
1774
1775                 target->working_areas = new_wa;
1776         }
1777
1778         /* only allocate multiples of 4 byte */
1779         if (size % 4)
1780                 size = (size + 3) & (~3UL);
1781
1782         struct working_area *c = target->working_areas;
1783
1784         /* Find the first large enough working area */
1785         while (c) {
1786                 if (c->free && c->size >= size)
1787                         break;
1788                 c = c->next;
1789         }
1790
1791         if (c == NULL)
1792                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1793
1794         /* Split the working area into the requested size */
1795         target_split_working_area(c, size);
1796
1797         LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
1798                           size, c->address);
1799
1800         if (target->backup_working_area) {
1801                 if (c->backup == NULL) {
1802                         c->backup = malloc(c->size);
1803                         if (c->backup == NULL)
1804                                 return ERROR_FAIL;
1805                 }
1806
1807                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1808                 if (retval != ERROR_OK)
1809                         return retval;
1810         }
1811
1812         /* mark as used, and return the new (reused) area */
1813         c->free = false;
1814         *area = c;
1815
1816         /* user pointer */
1817         c->user = area;
1818
1819         print_wa_layout(target);
1820
1821         return ERROR_OK;
1822 }
1823
1824 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1825 {
1826         int retval;
1827
1828         retval = target_alloc_working_area_try(target, size, area);
1829         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1830                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1831         return retval;
1832
1833 }
1834
1835 static int target_restore_working_area(struct target *target, struct working_area *area)
1836 {
1837         int retval = ERROR_OK;
1838
1839         if (target->backup_working_area && area->backup != NULL) {
1840                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1841                 if (retval != ERROR_OK)
1842                         LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1843                                         area->size, area->address);
1844         }
1845
1846         return retval;
1847 }
1848
1849 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1850 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1851 {
1852         int retval = ERROR_OK;
1853
1854         if (area->free)
1855                 return retval;
1856
1857         if (restore) {
1858                 retval = target_restore_working_area(target, area);
1859                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1860                 if (retval != ERROR_OK)
1861                         return retval;
1862         }
1863
1864         area->free = true;
1865
1866         LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1867                         area->size, area->address);
1868
1869         /* mark user pointer invalid */
1870         /* TODO: Is this really safe? It points to some previous caller's memory.
1871          * How could we know that the area pointer is still in that place and not
1872          * some other vital data? What's the purpose of this, anyway? */
1873         *area->user = NULL;
1874         area->user = NULL;
1875
1876         target_merge_working_areas(target);
1877
1878         print_wa_layout(target);
1879
1880         return retval;
1881 }
1882
1883 int target_free_working_area(struct target *target, struct working_area *area)
1884 {
1885         return target_free_working_area_restore(target, area, 1);
1886 }
1887
1888 static void target_destroy(struct target *target)
1889 {
1890         if (target->type->deinit_target)
1891                 target->type->deinit_target(target);
1892
1893         free(target->type);
1894         free(target->trace_info);
1895         free(target->cmd_name);
1896         free(target);
1897 }
1898
1899 void target_quit(void)
1900 {
1901         struct target_event_callback *pe = target_event_callbacks;
1902         while (pe) {
1903                 struct target_event_callback *t = pe->next;
1904                 free(pe);
1905                 pe = t;
1906         }
1907         target_event_callbacks = NULL;
1908
1909         struct target_timer_callback *pt = target_timer_callbacks;
1910         while (pt) {
1911                 struct target_timer_callback *t = pt->next;
1912                 free(pt);
1913                 pt = t;
1914         }
1915         target_timer_callbacks = NULL;
1916
1917         for (struct target *target = all_targets; target;) {
1918                 struct target *tmp;
1919
1920                 tmp = target->next;
1921                 target_destroy(target);
1922                 target = tmp;
1923         }
1924
1925         all_targets = NULL;
1926 }
1927
1928 /* free resources and restore memory, if restoring memory fails,
1929  * free up resources anyway
1930  */
1931 static void target_free_all_working_areas_restore(struct target *target, int restore)
1932 {
1933         struct working_area *c = target->working_areas;
1934
1935         LOG_DEBUG("freeing all working areas");
1936
1937         /* Loop through all areas, restoring the allocated ones and marking them as free */
1938         while (c) {
1939                 if (!c->free) {
1940                         if (restore)
1941                                 target_restore_working_area(target, c);
1942                         c->free = true;
1943                         *c->user = NULL; /* Same as above */
1944                         c->user = NULL;
1945                 }
1946                 c = c->next;
1947         }
1948
1949         /* Run a merge pass to combine all areas into one */
1950         target_merge_working_areas(target);
1951
1952         print_wa_layout(target);
1953 }
1954
1955 void target_free_all_working_areas(struct target *target)
1956 {
1957         target_free_all_working_areas_restore(target, 1);
1958 }
1959
1960 /* Find the largest number of bytes that can be allocated */
1961 uint32_t target_get_working_area_avail(struct target *target)
1962 {
1963         struct working_area *c = target->working_areas;
1964         uint32_t max_size = 0;
1965
1966         if (c == NULL)
1967                 return target->working_area_size;
1968
1969         while (c) {
1970                 if (c->free && max_size < c->size)
1971                         max_size = c->size;
1972
1973                 c = c->next;
1974         }
1975
1976         return max_size;
1977 }
1978
1979 int target_arch_state(struct target *target)
1980 {
1981         int retval;
1982         if (target == NULL) {
1983                 LOG_WARNING("No target has been configured");
1984                 return ERROR_OK;
1985         }
1986
1987         if (target->state != TARGET_HALTED)
1988                 return ERROR_OK;
1989
1990         retval = target->type->arch_state(target);
1991         return retval;
1992 }
1993
1994 static int target_get_gdb_fileio_info_default(struct target *target,
1995                 struct gdb_fileio_info *fileio_info)
1996 {
1997         /* If target does not support semi-hosting function, target
1998            has no need to provide .get_gdb_fileio_info callback.
1999            It just return ERROR_FAIL and gdb_server will return "Txx"
2000            as target halted every time.  */
2001         return ERROR_FAIL;
2002 }
2003
2004 static int target_gdb_fileio_end_default(struct target *target,
2005                 int retcode, int fileio_errno, bool ctrl_c)
2006 {
2007         return ERROR_OK;
2008 }
2009
2010 static int target_profiling_default(struct target *target, uint32_t *samples,
2011                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2012 {
2013         struct timeval timeout, now;
2014
2015         gettimeofday(&timeout, NULL);
2016         timeval_add_time(&timeout, seconds, 0);
2017
2018         LOG_INFO("Starting profiling. Halting and resuming the"
2019                         " target as often as we can...");
2020
2021         uint32_t sample_count = 0;
2022         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2023         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
2024
2025         int retval = ERROR_OK;
2026         for (;;) {
2027                 target_poll(target);
2028                 if (target->state == TARGET_HALTED) {
2029                         uint32_t t = buf_get_u32(reg->value, 0, 32);
2030                         samples[sample_count++] = t;
2031                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
2032                         retval = target_resume(target, 1, 0, 0, 0);
2033                         target_poll(target);
2034                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2035                 } else if (target->state == TARGET_RUNNING) {
2036                         /* We want to quickly sample the PC. */
2037                         retval = target_halt(target);
2038                 } else {
2039                         LOG_INFO("Target not halted or running");
2040                         retval = ERROR_OK;
2041                         break;
2042                 }
2043
2044                 if (retval != ERROR_OK)
2045                         break;
2046
2047                 gettimeofday(&now, NULL);
2048                 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2049                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2050                         break;
2051                 }
2052         }
2053
2054         *num_samples = sample_count;
2055         return retval;
2056 }
2057
2058 /* Single aligned words are guaranteed to use 16 or 32 bit access
2059  * mode respectively, otherwise data is handled as quickly as
2060  * possible
2061  */
2062 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2063 {
2064         LOG_DEBUG("writing buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2065                           size, address);
2066
2067         if (!target_was_examined(target)) {
2068                 LOG_ERROR("Target not examined yet");
2069                 return ERROR_FAIL;
2070         }
2071
2072         if (size == 0)
2073                 return ERROR_OK;
2074
2075         if ((address + size - 1) < address) {
2076                 /* GDB can request this when e.g. PC is 0xfffffffc */
2077                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2078                                   address,
2079                                   size);
2080                 return ERROR_FAIL;
2081         }
2082
2083         return target->type->write_buffer(target, address, size, buffer);
2084 }
2085
2086 static int target_write_buffer_default(struct target *target,
2087         target_addr_t address, uint32_t count, const uint8_t *buffer)
2088 {
2089         uint32_t size;
2090
2091         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2092          * will have something to do with the size we leave to it. */
2093         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2094                 if (address & size) {
2095                         int retval = target_write_memory(target, address, size, 1, buffer);
2096                         if (retval != ERROR_OK)
2097                                 return retval;
2098                         address += size;
2099                         count -= size;
2100                         buffer += size;
2101                 }
2102         }
2103
2104         /* Write the data with as large access size as possible. */
2105         for (; size > 0; size /= 2) {
2106                 uint32_t aligned = count - count % size;
2107                 if (aligned > 0) {
2108                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2109                         if (retval != ERROR_OK)
2110                                 return retval;
2111                         address += aligned;
2112                         count -= aligned;
2113                         buffer += aligned;
2114                 }
2115         }
2116
2117         return ERROR_OK;
2118 }
2119
2120 /* Single aligned words are guaranteed to use 16 or 32 bit access
2121  * mode respectively, otherwise data is handled as quickly as
2122  * possible
2123  */
2124 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2125 {
2126         LOG_DEBUG("reading buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2127                           size, address);
2128
2129         if (!target_was_examined(target)) {
2130                 LOG_ERROR("Target not examined yet");
2131                 return ERROR_FAIL;
2132         }
2133
2134         if (size == 0)
2135                 return ERROR_OK;
2136
2137         if ((address + size - 1) < address) {
2138                 /* GDB can request this when e.g. PC is 0xfffffffc */
2139                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2140                                   address,
2141                                   size);
2142                 return ERROR_FAIL;
2143         }
2144
2145         return target->type->read_buffer(target, address, size, buffer);
2146 }
2147
2148 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2149 {
2150         uint32_t size;
2151
2152         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2153          * will have something to do with the size we leave to it. */
2154         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2155                 if (address & size) {
2156                         int retval = target_read_memory(target, address, size, 1, buffer);
2157                         if (retval != ERROR_OK)
2158                                 return retval;
2159                         address += size;
2160                         count -= size;
2161                         buffer += size;
2162                 }
2163         }
2164
2165         /* Read the data with as large access size as possible. */
2166         for (; size > 0; size /= 2) {
2167                 uint32_t aligned = count - count % size;
2168                 if (aligned > 0) {
2169                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2170                         if (retval != ERROR_OK)
2171                                 return retval;
2172                         address += aligned;
2173                         count -= aligned;
2174                         buffer += aligned;
2175                 }
2176         }
2177
2178         return ERROR_OK;
2179 }
2180
2181 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* crc)
2182 {
2183         uint8_t *buffer;
2184         int retval;
2185         uint32_t i;
2186         uint32_t checksum = 0;
2187         if (!target_was_examined(target)) {
2188                 LOG_ERROR("Target not examined yet");
2189                 return ERROR_FAIL;
2190         }
2191
2192         retval = target->type->checksum_memory(target, address, size, &checksum);
2193         if (retval != ERROR_OK) {
2194                 buffer = malloc(size);
2195                 if (buffer == NULL) {
2196                         LOG_ERROR("error allocating buffer for section (%" PRId32 " bytes)", size);
2197                         return ERROR_COMMAND_SYNTAX_ERROR;
2198                 }
2199                 retval = target_read_buffer(target, address, size, buffer);
2200                 if (retval != ERROR_OK) {
2201                         free(buffer);
2202                         return retval;
2203                 }
2204
2205                 /* convert to target endianness */
2206                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2207                         uint32_t target_data;
2208                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2209                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2210                 }
2211
2212                 retval = image_calculate_checksum(buffer, size, &checksum);
2213                 free(buffer);
2214         }
2215
2216         *crc = checksum;
2217
2218         return retval;
2219 }
2220
2221 int target_blank_check_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* blank,
2222         uint8_t erased_value)
2223 {
2224         int retval;
2225         if (!target_was_examined(target)) {
2226                 LOG_ERROR("Target not examined yet");
2227                 return ERROR_FAIL;
2228         }
2229
2230         if (target->type->blank_check_memory == 0)
2231                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2232
2233         retval = target->type->blank_check_memory(target, address, size, blank, erased_value);
2234
2235         return retval;
2236 }
2237
2238 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2239 {
2240         uint8_t value_buf[8];
2241         if (!target_was_examined(target)) {
2242                 LOG_ERROR("Target not examined yet");
2243                 return ERROR_FAIL;
2244         }
2245
2246         int retval = target_read_memory(target, address, 8, 1, value_buf);
2247
2248         if (retval == ERROR_OK) {
2249                 *value = target_buffer_get_u64(target, value_buf);
2250                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2251                                   address,
2252                                   *value);
2253         } else {
2254                 *value = 0x0;
2255                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2256                                   address);
2257         }
2258
2259         return retval;
2260 }
2261
2262 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2263 {
2264         uint8_t value_buf[4];
2265         if (!target_was_examined(target)) {
2266                 LOG_ERROR("Target not examined yet");
2267                 return ERROR_FAIL;
2268         }
2269
2270         int retval = target_read_memory(target, address, 4, 1, value_buf);
2271
2272         if (retval == ERROR_OK) {
2273                 *value = target_buffer_get_u32(target, value_buf);
2274                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2275                                   address,
2276                                   *value);
2277         } else {
2278                 *value = 0x0;
2279                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2280                                   address);
2281         }
2282
2283         return retval;
2284 }
2285
2286 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2287 {
2288         uint8_t value_buf[2];
2289         if (!target_was_examined(target)) {
2290                 LOG_ERROR("Target not examined yet");
2291                 return ERROR_FAIL;
2292         }
2293
2294         int retval = target_read_memory(target, address, 2, 1, value_buf);
2295
2296         if (retval == ERROR_OK) {
2297                 *value = target_buffer_get_u16(target, value_buf);
2298                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2299                                   address,
2300                                   *value);
2301         } else {
2302                 *value = 0x0;
2303                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2304                                   address);
2305         }
2306
2307         return retval;
2308 }
2309
2310 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2311 {
2312         if (!target_was_examined(target)) {
2313                 LOG_ERROR("Target not examined yet");
2314                 return ERROR_FAIL;
2315         }
2316
2317         int retval = target_read_memory(target, address, 1, 1, value);
2318
2319         if (retval == ERROR_OK) {
2320                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2321                                   address,
2322                                   *value);
2323         } else {
2324                 *value = 0x0;
2325                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2326                                   address);
2327         }
2328
2329         return retval;
2330 }
2331
2332 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2333 {
2334         int retval;
2335         uint8_t value_buf[8];
2336         if (!target_was_examined(target)) {
2337                 LOG_ERROR("Target not examined yet");
2338                 return ERROR_FAIL;
2339         }
2340
2341         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2342                           address,
2343                           value);
2344
2345         target_buffer_set_u64(target, value_buf, value);
2346         retval = target_write_memory(target, address, 8, 1, value_buf);
2347         if (retval != ERROR_OK)
2348                 LOG_DEBUG("failed: %i", retval);
2349
2350         return retval;
2351 }
2352
2353 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2354 {
2355         int retval;
2356         uint8_t value_buf[4];
2357         if (!target_was_examined(target)) {
2358                 LOG_ERROR("Target not examined yet");
2359                 return ERROR_FAIL;
2360         }
2361
2362         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2363                           address,
2364                           value);
2365
2366         target_buffer_set_u32(target, value_buf, value);
2367         retval = target_write_memory(target, address, 4, 1, value_buf);
2368         if (retval != ERROR_OK)
2369                 LOG_DEBUG("failed: %i", retval);
2370
2371         return retval;
2372 }
2373
2374 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2375 {
2376         int retval;
2377         uint8_t value_buf[2];
2378         if (!target_was_examined(target)) {
2379                 LOG_ERROR("Target not examined yet");
2380                 return ERROR_FAIL;
2381         }
2382
2383         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2384                           address,
2385                           value);
2386
2387         target_buffer_set_u16(target, value_buf, value);
2388         retval = target_write_memory(target, address, 2, 1, value_buf);
2389         if (retval != ERROR_OK)
2390                 LOG_DEBUG("failed: %i", retval);
2391
2392         return retval;
2393 }
2394
2395 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2396 {
2397         int retval;
2398         if (!target_was_examined(target)) {
2399                 LOG_ERROR("Target not examined yet");
2400                 return ERROR_FAIL;
2401         }
2402
2403         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2404                           address, value);
2405
2406         retval = target_write_memory(target, address, 1, 1, &value);
2407         if (retval != ERROR_OK)
2408                 LOG_DEBUG("failed: %i", retval);
2409
2410         return retval;
2411 }
2412
2413 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2414 {
2415         int retval;
2416         uint8_t value_buf[8];
2417         if (!target_was_examined(target)) {
2418                 LOG_ERROR("Target not examined yet");
2419                 return ERROR_FAIL;
2420         }
2421
2422         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2423                           address,
2424                           value);
2425
2426         target_buffer_set_u64(target, value_buf, value);
2427         retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2428         if (retval != ERROR_OK)
2429                 LOG_DEBUG("failed: %i", retval);
2430
2431         return retval;
2432 }
2433
2434 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2435 {
2436         int retval;
2437         uint8_t value_buf[4];
2438         if (!target_was_examined(target)) {
2439                 LOG_ERROR("Target not examined yet");
2440                 return ERROR_FAIL;
2441         }
2442
2443         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2444                           address,
2445                           value);
2446
2447         target_buffer_set_u32(target, value_buf, value);
2448         retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2449         if (retval != ERROR_OK)
2450                 LOG_DEBUG("failed: %i", retval);
2451
2452         return retval;
2453 }
2454
2455 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2456 {
2457         int retval;
2458         uint8_t value_buf[2];
2459         if (!target_was_examined(target)) {
2460                 LOG_ERROR("Target not examined yet");
2461                 return ERROR_FAIL;
2462         }
2463
2464         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2465                           address,
2466                           value);
2467
2468         target_buffer_set_u16(target, value_buf, value);
2469         retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2470         if (retval != ERROR_OK)
2471                 LOG_DEBUG("failed: %i", retval);
2472
2473         return retval;
2474 }
2475
2476 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2477 {
2478         int retval;
2479         if (!target_was_examined(target)) {
2480                 LOG_ERROR("Target not examined yet");
2481                 return ERROR_FAIL;
2482         }
2483
2484         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2485                           address, value);
2486
2487         retval = target_write_phys_memory(target, address, 1, 1, &value);
2488         if (retval != ERROR_OK)
2489                 LOG_DEBUG("failed: %i", retval);
2490
2491         return retval;
2492 }
2493
2494 static int find_target(struct command_context *cmd_ctx, const char *name)
2495 {
2496         struct target *target = get_target(name);
2497         if (target == NULL) {
2498                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2499                 return ERROR_FAIL;
2500         }
2501         if (!target->tap->enabled) {
2502                 LOG_USER("Target: TAP %s is disabled, "
2503                          "can't be the current target\n",
2504                          target->tap->dotted_name);
2505                 return ERROR_FAIL;
2506         }
2507
2508         cmd_ctx->current_target = target->target_number;
2509         return ERROR_OK;
2510 }
2511
2512
2513 COMMAND_HANDLER(handle_targets_command)
2514 {
2515         int retval = ERROR_OK;
2516         if (CMD_ARGC == 1) {
2517                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2518                 if (retval == ERROR_OK) {
2519                         /* we're done! */
2520                         return retval;
2521                 }
2522         }
2523
2524         struct target *target = all_targets;
2525         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2526         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2527         while (target) {
2528                 const char *state;
2529                 char marker = ' ';
2530
2531                 if (target->tap->enabled)
2532                         state = target_state_name(target);
2533                 else
2534                         state = "tap-disabled";
2535
2536                 if (CMD_CTX->current_target == target->target_number)
2537                         marker = '*';
2538
2539                 /* keep columns lined up to match the headers above */
2540                 command_print(CMD_CTX,
2541                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2542                                 target->target_number,
2543                                 marker,
2544                                 target_name(target),
2545                                 target_type_name(target),
2546                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2547                                         target->endianness)->name,
2548                                 target->tap->dotted_name,
2549                                 state);
2550                 target = target->next;
2551         }
2552
2553         return retval;
2554 }
2555
2556 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2557
2558 static int powerDropout;
2559 static int srstAsserted;
2560
2561 static int runPowerRestore;
2562 static int runPowerDropout;
2563 static int runSrstAsserted;
2564 static int runSrstDeasserted;
2565
2566 static int sense_handler(void)
2567 {
2568         static int prevSrstAsserted;
2569         static int prevPowerdropout;
2570
2571         int retval = jtag_power_dropout(&powerDropout);
2572         if (retval != ERROR_OK)
2573                 return retval;
2574
2575         int powerRestored;
2576         powerRestored = prevPowerdropout && !powerDropout;
2577         if (powerRestored)
2578                 runPowerRestore = 1;
2579
2580         int64_t current = timeval_ms();
2581         static int64_t lastPower;
2582         bool waitMore = lastPower + 2000 > current;
2583         if (powerDropout && !waitMore) {
2584                 runPowerDropout = 1;
2585                 lastPower = current;
2586         }
2587
2588         retval = jtag_srst_asserted(&srstAsserted);
2589         if (retval != ERROR_OK)
2590                 return retval;
2591
2592         int srstDeasserted;
2593         srstDeasserted = prevSrstAsserted && !srstAsserted;
2594
2595         static int64_t lastSrst;
2596         waitMore = lastSrst + 2000 > current;
2597         if (srstDeasserted && !waitMore) {
2598                 runSrstDeasserted = 1;
2599                 lastSrst = current;
2600         }
2601
2602         if (!prevSrstAsserted && srstAsserted)
2603                 runSrstAsserted = 1;
2604
2605         prevSrstAsserted = srstAsserted;
2606         prevPowerdropout = powerDropout;
2607
2608         if (srstDeasserted || powerRestored) {
2609                 /* Other than logging the event we can't do anything here.
2610                  * Issuing a reset is a particularly bad idea as we might
2611                  * be inside a reset already.
2612                  */
2613         }
2614
2615         return ERROR_OK;
2616 }
2617
2618 /* process target state changes */
2619 static int handle_target(void *priv)
2620 {
2621         Jim_Interp *interp = (Jim_Interp *)priv;
2622         int retval = ERROR_OK;
2623
2624         if (!is_jtag_poll_safe()) {
2625                 /* polling is disabled currently */
2626                 return ERROR_OK;
2627         }
2628
2629         /* we do not want to recurse here... */
2630         static int recursive;
2631         if (!recursive) {
2632                 recursive = 1;
2633                 sense_handler();
2634                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2635                  * We need to avoid an infinite loop/recursion here and we do that by
2636                  * clearing the flags after running these events.
2637                  */
2638                 int did_something = 0;
2639                 if (runSrstAsserted) {
2640                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2641                         Jim_Eval(interp, "srst_asserted");
2642                         did_something = 1;
2643                 }
2644                 if (runSrstDeasserted) {
2645                         Jim_Eval(interp, "srst_deasserted");
2646                         did_something = 1;
2647                 }
2648                 if (runPowerDropout) {
2649                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2650                         Jim_Eval(interp, "power_dropout");
2651                         did_something = 1;
2652                 }
2653                 if (runPowerRestore) {
2654                         Jim_Eval(interp, "power_restore");
2655                         did_something = 1;
2656                 }
2657
2658                 if (did_something) {
2659                         /* clear detect flags */
2660                         sense_handler();
2661                 }
2662
2663                 /* clear action flags */
2664
2665                 runSrstAsserted = 0;
2666                 runSrstDeasserted = 0;
2667                 runPowerRestore = 0;
2668                 runPowerDropout = 0;
2669
2670                 recursive = 0;
2671         }
2672
2673         /* Poll targets for state changes unless that's globally disabled.
2674          * Skip targets that are currently disabled.
2675          */
2676         for (struct target *target = all_targets;
2677                         is_jtag_poll_safe() && target;
2678                         target = target->next) {
2679
2680                 if (!target_was_examined(target))
2681                         continue;
2682
2683                 if (!target->tap->enabled)
2684                         continue;
2685
2686                 if (target->backoff.times > target->backoff.count) {
2687                         /* do not poll this time as we failed previously */
2688                         target->backoff.count++;
2689                         continue;
2690                 }
2691                 target->backoff.count = 0;
2692
2693                 /* only poll target if we've got power and srst isn't asserted */
2694                 if (!powerDropout && !srstAsserted) {
2695                         /* polling may fail silently until the target has been examined */
2696                         retval = target_poll(target);
2697                         if (retval != ERROR_OK) {
2698                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2699                                 if (target->backoff.times * polling_interval < 5000) {
2700                                         target->backoff.times *= 2;
2701                                         target->backoff.times++;
2702                                 }
2703
2704                                 /* Tell GDB to halt the debugger. This allows the user to
2705                                  * run monitor commands to handle the situation.
2706                                  */
2707                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2708                         }
2709                         if (target->backoff.times > 0) {
2710                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2711                                 target_reset_examined(target);
2712                                 retval = target_examine_one(target);
2713                                 /* Target examination could have failed due to unstable connection,
2714                                  * but we set the examined flag anyway to repoll it later */
2715                                 if (retval != ERROR_OK) {
2716                                         target->examined = true;
2717                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2718                                                  target->backoff.times * polling_interval);
2719                                         return retval;
2720                                 }
2721                         }
2722
2723                         /* Since we succeeded, we reset backoff count */
2724                         target->backoff.times = 0;
2725                 }
2726         }
2727
2728         return retval;
2729 }
2730
2731 COMMAND_HANDLER(handle_reg_command)
2732 {
2733         struct target *target;
2734         struct reg *reg = NULL;
2735         unsigned count = 0;
2736         char *value;
2737
2738         LOG_DEBUG("-");
2739
2740         target = get_current_target(CMD_CTX);
2741
2742         /* list all available registers for the current target */
2743         if (CMD_ARGC == 0) {
2744                 struct reg_cache *cache = target->reg_cache;
2745
2746                 count = 0;
2747                 while (cache) {
2748                         unsigned i;
2749
2750                         command_print(CMD_CTX, "===== %s", cache->name);
2751
2752                         for (i = 0, reg = cache->reg_list;
2753                                         i < cache->num_regs;
2754                                         i++, reg++, count++) {
2755                                 /* only print cached values if they are valid */
2756                                 if (reg->valid) {
2757                                         value = buf_to_str(reg->value,
2758                                                         reg->size, 16);
2759                                         command_print(CMD_CTX,
2760                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2761                                                         count, reg->name,
2762                                                         reg->size, value,
2763                                                         reg->dirty
2764                                                                 ? " (dirty)"
2765                                                                 : "");
2766                                         free(value);
2767                                 } else {
2768                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2769                                                           count, reg->name,
2770                                                           reg->size) ;
2771                                 }
2772                         }
2773                         cache = cache->next;
2774                 }
2775
2776                 return ERROR_OK;
2777         }
2778
2779         /* access a single register by its ordinal number */
2780         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2781                 unsigned num;
2782                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2783
2784                 struct reg_cache *cache = target->reg_cache;
2785                 count = 0;
2786                 while (cache) {
2787                         unsigned i;
2788                         for (i = 0; i < cache->num_regs; i++) {
2789                                 if (count++ == num) {
2790                                         reg = &cache->reg_list[i];
2791                                         break;
2792                                 }
2793                         }
2794                         if (reg)
2795                                 break;
2796                         cache = cache->next;
2797                 }
2798
2799                 if (!reg) {
2800                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2801                                         "has only %i registers (0 - %i)", num, count, count - 1);
2802                         return ERROR_OK;
2803                 }
2804         } else {
2805                 /* access a single register by its name */
2806                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2807
2808                 if (!reg) {
2809                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2810                         return ERROR_OK;
2811                 }
2812         }
2813
2814         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2815
2816         /* display a register */
2817         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2818                         && (CMD_ARGV[1][0] <= '9')))) {
2819                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2820                         reg->valid = 0;
2821
2822                 if (reg->valid == 0)
2823                         reg->type->get(reg);
2824                 value = buf_to_str(reg->value, reg->size, 16);
2825                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2826                 free(value);
2827                 return ERROR_OK;
2828         }
2829
2830         /* set register value */
2831         if (CMD_ARGC == 2) {
2832                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2833                 if (buf == NULL)
2834                         return ERROR_FAIL;
2835                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2836
2837                 reg->type->set(reg, buf);
2838
2839                 value = buf_to_str(reg->value, reg->size, 16);
2840                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2841                 free(value);
2842
2843                 free(buf);
2844
2845                 return ERROR_OK;
2846         }
2847
2848         return ERROR_COMMAND_SYNTAX_ERROR;
2849 }
2850
2851 COMMAND_HANDLER(handle_poll_command)
2852 {
2853         int retval = ERROR_OK;
2854         struct target *target = get_current_target(CMD_CTX);
2855
2856         if (CMD_ARGC == 0) {
2857                 command_print(CMD_CTX, "background polling: %s",
2858                                 jtag_poll_get_enabled() ? "on" : "off");
2859                 command_print(CMD_CTX, "TAP: %s (%s)",
2860                                 target->tap->dotted_name,
2861                                 target->tap->enabled ? "enabled" : "disabled");
2862                 if (!target->tap->enabled)
2863                         return ERROR_OK;
2864                 retval = target_poll(target);
2865                 if (retval != ERROR_OK)
2866                         return retval;
2867                 retval = target_arch_state(target);
2868                 if (retval != ERROR_OK)
2869                         return retval;
2870         } else if (CMD_ARGC == 1) {
2871                 bool enable;
2872                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2873                 jtag_poll_set_enabled(enable);
2874         } else
2875                 return ERROR_COMMAND_SYNTAX_ERROR;
2876
2877         return retval;
2878 }
2879
2880 COMMAND_HANDLER(handle_wait_halt_command)
2881 {
2882         if (CMD_ARGC > 1)
2883                 return ERROR_COMMAND_SYNTAX_ERROR;
2884
2885         unsigned ms = DEFAULT_HALT_TIMEOUT;
2886         if (1 == CMD_ARGC) {
2887                 int retval = parse_uint(CMD_ARGV[0], &ms);
2888                 if (ERROR_OK != retval)
2889                         return ERROR_COMMAND_SYNTAX_ERROR;
2890         }
2891
2892         struct target *target = get_current_target(CMD_CTX);
2893         return target_wait_state(target, TARGET_HALTED, ms);
2894 }
2895
2896 /* wait for target state to change. The trick here is to have a low
2897  * latency for short waits and not to suck up all the CPU time
2898  * on longer waits.
2899  *
2900  * After 500ms, keep_alive() is invoked
2901  */
2902 int target_wait_state(struct target *target, enum target_state state, int ms)
2903 {
2904         int retval;
2905         int64_t then = 0, cur;
2906         bool once = true;
2907
2908         for (;;) {
2909                 retval = target_poll(target);
2910                 if (retval != ERROR_OK)
2911                         return retval;
2912                 if (target->state == state)
2913                         break;
2914                 cur = timeval_ms();
2915                 if (once) {
2916                         once = false;
2917                         then = timeval_ms();
2918                         LOG_DEBUG("waiting for target %s...",
2919                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2920                 }
2921
2922                 if (cur-then > 500)
2923                         keep_alive();
2924
2925                 if ((cur-then) > ms) {
2926                         LOG_ERROR("timed out while waiting for target %s",
2927                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2928                         return ERROR_FAIL;
2929                 }
2930         }
2931
2932         return ERROR_OK;
2933 }
2934
2935 COMMAND_HANDLER(handle_halt_command)
2936 {
2937         LOG_DEBUG("-");
2938
2939         struct target *target = get_current_target(CMD_CTX);
2940         int retval = target_halt(target);
2941         if (ERROR_OK != retval)
2942                 return retval;
2943
2944         if (CMD_ARGC == 1) {
2945                 unsigned wait_local;
2946                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2947                 if (ERROR_OK != retval)
2948                         return ERROR_COMMAND_SYNTAX_ERROR;
2949                 if (!wait_local)
2950                         return ERROR_OK;
2951         }
2952
2953         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2954 }
2955
2956 COMMAND_HANDLER(handle_soft_reset_halt_command)
2957 {
2958         struct target *target = get_current_target(CMD_CTX);
2959
2960         LOG_USER("requesting target halt and executing a soft reset");
2961
2962         target_soft_reset_halt(target);
2963
2964         return ERROR_OK;
2965 }
2966
2967 COMMAND_HANDLER(handle_reset_command)
2968 {
2969         if (CMD_ARGC > 1)
2970                 return ERROR_COMMAND_SYNTAX_ERROR;
2971
2972         enum target_reset_mode reset_mode = RESET_RUN;
2973         if (CMD_ARGC == 1) {
2974                 const Jim_Nvp *n;
2975                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2976                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2977                         return ERROR_COMMAND_SYNTAX_ERROR;
2978                 reset_mode = n->value;
2979         }
2980
2981         /* reset *all* targets */
2982         return target_process_reset(CMD_CTX, reset_mode);
2983 }
2984
2985
2986 COMMAND_HANDLER(handle_resume_command)
2987 {
2988         int current = 1;
2989         if (CMD_ARGC > 1)
2990                 return ERROR_COMMAND_SYNTAX_ERROR;
2991
2992         struct target *target = get_current_target(CMD_CTX);
2993
2994         /* with no CMD_ARGV, resume from current pc, addr = 0,
2995          * with one arguments, addr = CMD_ARGV[0],
2996          * handle breakpoints, not debugging */
2997         target_addr_t addr = 0;
2998         if (CMD_ARGC == 1) {
2999                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3000                 current = 0;
3001         }
3002
3003         return target_resume(target, current, addr, 1, 0);
3004 }
3005
3006 COMMAND_HANDLER(handle_step_command)
3007 {
3008         if (CMD_ARGC > 1)
3009                 return ERROR_COMMAND_SYNTAX_ERROR;
3010
3011         LOG_DEBUG("-");
3012
3013         /* with no CMD_ARGV, step from current pc, addr = 0,
3014          * with one argument addr = CMD_ARGV[0],
3015          * handle breakpoints, debugging */
3016         target_addr_t addr = 0;
3017         int current_pc = 1;
3018         if (CMD_ARGC == 1) {
3019                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3020                 current_pc = 0;
3021         }
3022
3023         struct target *target = get_current_target(CMD_CTX);
3024
3025         return target->type->step(target, current_pc, addr, 1);
3026 }
3027
3028 static void handle_md_output(struct command_context *cmd_ctx,
3029                 struct target *target, target_addr_t address, unsigned size,
3030                 unsigned count, const uint8_t *buffer)
3031 {
3032         const unsigned line_bytecnt = 32;
3033         unsigned line_modulo = line_bytecnt / size;
3034
3035         char output[line_bytecnt * 4 + 1];
3036         unsigned output_len = 0;
3037
3038         const char *value_fmt;
3039         switch (size) {
3040         case 8:
3041                 value_fmt = "%16.16"PRIx64" ";
3042                 break;
3043         case 4:
3044                 value_fmt = "%8.8"PRIx64" ";
3045                 break;
3046         case 2:
3047                 value_fmt = "%4.4"PRIx64" ";
3048                 break;
3049         case 1:
3050                 value_fmt = "%2.2"PRIx64" ";
3051                 break;
3052         default:
3053                 /* "can't happen", caller checked */
3054                 LOG_ERROR("invalid memory read size: %u", size);
3055                 return;
3056         }
3057
3058         for (unsigned i = 0; i < count; i++) {
3059                 if (i % line_modulo == 0) {
3060                         output_len += snprintf(output + output_len,
3061                                         sizeof(output) - output_len,
3062                                         TARGET_ADDR_FMT ": ",
3063                                         (address + (i * size)));
3064                 }
3065
3066                 uint64_t value = 0;
3067                 const uint8_t *value_ptr = buffer + i * size;
3068                 switch (size) {
3069                 case 8:
3070                         value = target_buffer_get_u64(target, value_ptr);
3071                         break;
3072                 case 4:
3073                         value = target_buffer_get_u32(target, value_ptr);
3074                         break;
3075                 case 2:
3076                         value = target_buffer_get_u16(target, value_ptr);
3077                         break;
3078                 case 1:
3079                         value = *value_ptr;
3080                 }
3081                 output_len += snprintf(output + output_len,
3082                                 sizeof(output) - output_len,
3083                                 value_fmt, value);
3084
3085                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3086                         command_print(cmd_ctx, "%s", output);
3087                         output_len = 0;
3088                 }
3089         }
3090 }
3091
3092 COMMAND_HANDLER(handle_md_command)
3093 {
3094         if (CMD_ARGC < 1)
3095                 return ERROR_COMMAND_SYNTAX_ERROR;
3096
3097         unsigned size = 0;
3098         switch (CMD_NAME[2]) {
3099         case 'd':
3100                 size = 8;
3101                 break;
3102         case 'w':
3103                 size = 4;
3104                 break;
3105         case 'h':
3106                 size = 2;
3107                 break;
3108         case 'b':
3109                 size = 1;
3110                 break;
3111         default:
3112                 return ERROR_COMMAND_SYNTAX_ERROR;
3113         }
3114
3115         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3116         int (*fn)(struct target *target,
3117                         target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3118         if (physical) {
3119                 CMD_ARGC--;
3120                 CMD_ARGV++;
3121                 fn = target_read_phys_memory;
3122         } else
3123                 fn = target_read_memory;
3124         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3125                 return ERROR_COMMAND_SYNTAX_ERROR;
3126
3127         target_addr_t address;
3128         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3129
3130         unsigned count = 1;
3131         if (CMD_ARGC == 2)
3132                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3133
3134         uint8_t *buffer = calloc(count, size);
3135         if (buffer == NULL) {
3136                 LOG_ERROR("Failed to allocate md read buffer");
3137                 return ERROR_FAIL;
3138         }
3139
3140         struct target *target = get_current_target(CMD_CTX);
3141         int retval = fn(target, address, size, count, buffer);
3142         if (ERROR_OK == retval)
3143                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3144
3145         free(buffer);
3146
3147         return retval;
3148 }
3149
3150 typedef int (*target_write_fn)(struct target *target,
3151                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3152
3153 static int target_fill_mem(struct target *target,
3154                 target_addr_t address,
3155                 target_write_fn fn,
3156                 unsigned data_size,
3157                 /* value */
3158                 uint64_t b,
3159                 /* count */
3160                 unsigned c)
3161 {
3162         /* We have to write in reasonably large chunks to be able
3163          * to fill large memory areas with any sane speed */
3164         const unsigned chunk_size = 16384;
3165         uint8_t *target_buf = malloc(chunk_size * data_size);
3166         if (target_buf == NULL) {
3167                 LOG_ERROR("Out of memory");
3168                 return ERROR_FAIL;
3169         }
3170
3171         for (unsigned i = 0; i < chunk_size; i++) {
3172                 switch (data_size) {
3173                 case 8:
3174                         target_buffer_set_u64(target, target_buf + i * data_size, b);
3175                         break;
3176                 case 4:
3177                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3178                         break;
3179                 case 2:
3180                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3181                         break;
3182                 case 1:
3183                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3184                         break;
3185                 default:
3186                         exit(-1);
3187                 }
3188         }
3189
3190         int retval = ERROR_OK;
3191
3192         for (unsigned x = 0; x < c; x += chunk_size) {
3193                 unsigned current;
3194                 current = c - x;
3195                 if (current > chunk_size)
3196                         current = chunk_size;
3197                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3198                 if (retval != ERROR_OK)
3199                         break;
3200                 /* avoid GDB timeouts */
3201                 keep_alive();
3202         }
3203         free(target_buf);
3204
3205         return retval;
3206 }
3207
3208
3209 COMMAND_HANDLER(handle_mw_command)
3210 {
3211         if (CMD_ARGC < 2)
3212                 return ERROR_COMMAND_SYNTAX_ERROR;
3213         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3214         target_write_fn fn;
3215         if (physical) {
3216                 CMD_ARGC--;
3217                 CMD_ARGV++;
3218                 fn = target_write_phys_memory;
3219         } else
3220                 fn = target_write_memory;
3221         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3222                 return ERROR_COMMAND_SYNTAX_ERROR;
3223
3224         target_addr_t address;
3225         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3226
3227         target_addr_t value;
3228         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], value);
3229
3230         unsigned count = 1;
3231         if (CMD_ARGC == 3)
3232                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3233
3234         struct target *target = get_current_target(CMD_CTX);
3235         unsigned wordsize;
3236         switch (CMD_NAME[2]) {
3237                 case 'd':
3238                         wordsize = 8;
3239                         break;
3240                 case 'w':
3241                         wordsize = 4;
3242                         break;
3243                 case 'h':
3244                         wordsize = 2;
3245                         break;
3246                 case 'b':
3247                         wordsize = 1;
3248                         break;
3249                 default:
3250                         return ERROR_COMMAND_SYNTAX_ERROR;
3251         }
3252
3253         return target_fill_mem(target, address, fn, wordsize, value, count);
3254 }
3255
3256 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3257                 target_addr_t *min_address, target_addr_t *max_address)
3258 {
3259         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3260                 return ERROR_COMMAND_SYNTAX_ERROR;
3261
3262         /* a base address isn't always necessary,
3263          * default to 0x0 (i.e. don't relocate) */
3264         if (CMD_ARGC >= 2) {
3265                 target_addr_t addr;
3266                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3267                 image->base_address = addr;
3268                 image->base_address_set = 1;
3269         } else
3270                 image->base_address_set = 0;
3271
3272         image->start_address_set = 0;
3273
3274         if (CMD_ARGC >= 4)
3275                 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3276         if (CMD_ARGC == 5) {
3277                 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3278                 /* use size (given) to find max (required) */
3279                 *max_address += *min_address;
3280         }
3281
3282         if (*min_address > *max_address)
3283                 return ERROR_COMMAND_SYNTAX_ERROR;
3284
3285         return ERROR_OK;
3286 }
3287
3288 COMMAND_HANDLER(handle_load_image_command)
3289 {
3290         uint8_t *buffer;
3291         size_t buf_cnt;
3292         uint32_t image_size;
3293         target_addr_t min_address = 0;
3294         target_addr_t max_address = -1;
3295         int i;
3296         struct image image;
3297
3298         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3299                         &image, &min_address, &max_address);
3300         if (ERROR_OK != retval)
3301                 return retval;
3302
3303         struct target *target = get_current_target(CMD_CTX);
3304
3305         struct duration bench;
3306         duration_start(&bench);
3307
3308         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3309                 return ERROR_FAIL;
3310
3311         image_size = 0x0;
3312         retval = ERROR_OK;
3313         for (i = 0; i < image.num_sections; i++) {
3314                 buffer = malloc(image.sections[i].size);
3315                 if (buffer == NULL) {
3316                         command_print(CMD_CTX,
3317                                                   "error allocating buffer for section (%d bytes)",
3318                                                   (int)(image.sections[i].size));
3319                         retval = ERROR_FAIL;
3320                         break;
3321                 }
3322
3323                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3324                 if (retval != ERROR_OK) {
3325                         free(buffer);
3326                         break;
3327                 }
3328
3329                 uint32_t offset = 0;
3330                 uint32_t length = buf_cnt;
3331
3332                 /* DANGER!!! beware of unsigned comparision here!!! */
3333
3334                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3335                                 (image.sections[i].base_address < max_address)) {
3336
3337                         if (image.sections[i].base_address < min_address) {
3338                                 /* clip addresses below */
3339                                 offset += min_address-image.sections[i].base_address;
3340                                 length -= offset;
3341                         }
3342
3343                         if (image.sections[i].base_address + buf_cnt > max_address)
3344                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3345
3346                         retval = target_write_buffer(target,
3347                                         image.sections[i].base_address + offset, length, buffer + offset);
3348                         if (retval != ERROR_OK) {
3349                                 free(buffer);
3350                                 break;
3351                         }
3352                         image_size += length;
3353                         command_print(CMD_CTX, "%u bytes written at address " TARGET_ADDR_FMT "",
3354                                         (unsigned int)length,
3355                                         image.sections[i].base_address + offset);
3356                 }
3357
3358                 free(buffer);
3359         }
3360
3361         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3362                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3363                                 "in %fs (%0.3f KiB/s)", image_size,
3364                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3365         }
3366
3367         image_close(&image);
3368
3369         return retval;
3370
3371 }
3372
3373 COMMAND_HANDLER(handle_dump_image_command)
3374 {
3375         struct fileio *fileio;
3376         uint8_t *buffer;
3377         int retval, retvaltemp;
3378         target_addr_t address, size;
3379         struct duration bench;
3380         struct target *target = get_current_target(CMD_CTX);
3381
3382         if (CMD_ARGC != 3)
3383                 return ERROR_COMMAND_SYNTAX_ERROR;
3384
3385         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3386         COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3387
3388         uint32_t buf_size = (size > 4096) ? 4096 : size;
3389         buffer = malloc(buf_size);
3390         if (!buffer)
3391                 return ERROR_FAIL;
3392
3393         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3394         if (retval != ERROR_OK) {
3395                 free(buffer);
3396                 return retval;
3397         }
3398
3399         duration_start(&bench);
3400
3401         while (size > 0) {
3402                 size_t size_written;
3403                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3404                 retval = target_read_buffer(target, address, this_run_size, buffer);
3405                 if (retval != ERROR_OK)
3406                         break;
3407
3408                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3409                 if (retval != ERROR_OK)
3410                         break;
3411
3412                 size -= this_run_size;
3413                 address += this_run_size;
3414         }
3415
3416         free(buffer);
3417
3418         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3419                 size_t filesize;
3420                 retval = fileio_size(fileio, &filesize);
3421                 if (retval != ERROR_OK)
3422                         return retval;
3423                 command_print(CMD_CTX,
3424                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3425                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3426         }
3427
3428         retvaltemp = fileio_close(fileio);
3429         if (retvaltemp != ERROR_OK)
3430                 return retvaltemp;
3431
3432         return retval;
3433 }
3434
3435 enum verify_mode {
3436         IMAGE_TEST = 0,
3437         IMAGE_VERIFY = 1,
3438         IMAGE_CHECKSUM_ONLY = 2
3439 };
3440
3441 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3442 {
3443         uint8_t *buffer;
3444         size_t buf_cnt;
3445         uint32_t image_size;
3446         int i;
3447         int retval;
3448         uint32_t checksum = 0;
3449         uint32_t mem_checksum = 0;
3450
3451         struct image image;
3452
3453         struct target *target = get_current_target(CMD_CTX);
3454
3455         if (CMD_ARGC < 1)
3456                 return ERROR_COMMAND_SYNTAX_ERROR;
3457
3458         if (!target) {
3459                 LOG_ERROR("no target selected");
3460                 return ERROR_FAIL;
3461         }
3462
3463         struct duration bench;
3464         duration_start(&bench);
3465
3466         if (CMD_ARGC >= 2) {
3467                 target_addr_t addr;
3468                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3469                 image.base_address = addr;
3470                 image.base_address_set = 1;
3471         } else {
3472                 image.base_address_set = 0;
3473                 image.base_address = 0x0;
3474         }
3475
3476         image.start_address_set = 0;
3477
3478         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3479         if (retval != ERROR_OK)
3480                 return retval;
3481
3482         image_size = 0x0;
3483         int diffs = 0;
3484         retval = ERROR_OK;
3485         for (i = 0; i < image.num_sections; i++) {
3486                 buffer = malloc(image.sections[i].size);
3487                 if (buffer == NULL) {
3488                         command_print(CMD_CTX,
3489                                         "error allocating buffer for section (%d bytes)",
3490                                         (int)(image.sections[i].size));
3491                         break;
3492                 }
3493                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3494                 if (retval != ERROR_OK) {
3495                         free(buffer);
3496                         break;
3497                 }
3498
3499                 if (verify >= IMAGE_VERIFY) {
3500                         /* calculate checksum of image */
3501                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3502                         if (retval != ERROR_OK) {
3503                                 free(buffer);
3504                                 break;
3505                         }
3506
3507                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3508                         if (retval != ERROR_OK) {
3509                                 free(buffer);
3510                                 break;
3511                         }
3512                         if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3513                                 LOG_ERROR("checksum mismatch");
3514                                 free(buffer);
3515                                 retval = ERROR_FAIL;
3516                                 goto done;
3517                         }
3518                         if (checksum != mem_checksum) {
3519                                 /* failed crc checksum, fall back to a binary compare */
3520                                 uint8_t *data;
3521
3522                                 if (diffs == 0)
3523                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3524
3525                                 data = malloc(buf_cnt);
3526
3527                                 /* Can we use 32bit word accesses? */
3528                                 int size = 1;
3529                                 int count = buf_cnt;
3530                                 if ((count % 4) == 0) {
3531                                         size *= 4;
3532                                         count /= 4;
3533                                 }
3534                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3535                                 if (retval == ERROR_OK) {
3536                                         uint32_t t;
3537                                         for (t = 0; t < buf_cnt; t++) {
3538                                                 if (data[t] != buffer[t]) {
3539                                                         command_print(CMD_CTX,
3540                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3541                                                                                   diffs,
3542                                                                                   (unsigned)(t + image.sections[i].base_address),
3543                                                                                   data[t],
3544                                                                                   buffer[t]);
3545                                                         if (diffs++ >= 127) {
3546                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3547                                                                 free(data);
3548                                                                 free(buffer);
3549                                                                 goto done;
3550                                                         }
3551                                                 }
3552                                                 keep_alive();
3553                                         }
3554                                 }
3555                                 free(data);
3556                         }
3557                 } else {
3558                         command_print(CMD_CTX, "address " TARGET_ADDR_FMT " length 0x%08zx",
3559                                                   image.sections[i].base_address,
3560                                                   buf_cnt);
3561                 }
3562
3563                 free(buffer);
3564                 image_size += buf_cnt;
3565         }
3566         if (diffs > 0)
3567                 command_print(CMD_CTX, "No more differences found.");
3568 done:
3569         if (diffs > 0)
3570                 retval = ERROR_FAIL;
3571         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3572                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3573                                 "in %fs (%0.3f KiB/s)", image_size,
3574                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3575         }
3576
3577         image_close(&image);
3578
3579         return retval;
3580 }
3581
3582 COMMAND_HANDLER(handle_verify_image_checksum_command)
3583 {
3584         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3585 }
3586
3587 COMMAND_HANDLER(handle_verify_image_command)
3588 {
3589         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3590 }
3591
3592 COMMAND_HANDLER(handle_test_image_command)
3593 {
3594         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3595 }
3596
3597 static int handle_bp_command_list(struct command_context *cmd_ctx)
3598 {
3599         struct target *target = get_current_target(cmd_ctx);
3600         struct breakpoint *breakpoint = target->breakpoints;
3601         while (breakpoint) {
3602                 if (breakpoint->type == BKPT_SOFT) {
3603                         char *buf = buf_to_str(breakpoint->orig_instr,
3604                                         breakpoint->length, 16);
3605                         command_print(cmd_ctx, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3606                                         breakpoint->address,
3607                                         breakpoint->length,
3608                                         breakpoint->set, buf);
3609                         free(buf);
3610                 } else {
3611                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3612                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3613                                                         breakpoint->asid,
3614                                                         breakpoint->length, breakpoint->set);
3615                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3616                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3617                                                         breakpoint->address,
3618                                                         breakpoint->length, breakpoint->set);
3619                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3620                                                         breakpoint->asid);
3621                         } else
3622                                 command_print(cmd_ctx, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3623                                                         breakpoint->address,
3624                                                         breakpoint->length, breakpoint->set);
3625                 }
3626
3627                 breakpoint = breakpoint->next;
3628         }
3629         return ERROR_OK;
3630 }
3631
3632 static int handle_bp_command_set(struct command_context *cmd_ctx,
3633                 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3634 {
3635         struct target *target = get_current_target(cmd_ctx);
3636         int retval;
3637
3638         if (asid == 0) {
3639                 retval = breakpoint_add(target, addr, length, hw);
3640                 if (ERROR_OK == retval)
3641                         command_print(cmd_ctx, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3642                 else {
3643                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3644                         return retval;
3645                 }
3646         } else if (addr == 0) {
3647                 if (target->type->add_context_breakpoint == NULL) {
3648                         LOG_WARNING("Context breakpoint not available");
3649                         return ERROR_OK;
3650                 }
3651                 retval = context_breakpoint_add(target, asid, length, hw);
3652                 if (ERROR_OK == retval)
3653                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3654                 else {
3655                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3656                         return retval;
3657                 }
3658         } else {
3659                 if (target->type->add_hybrid_breakpoint == NULL) {
3660                         LOG_WARNING("Hybrid breakpoint not available");
3661                         return ERROR_OK;
3662                 }
3663                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3664                 if (ERROR_OK == retval)
3665                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3666                 else {
3667                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3668                         return retval;
3669                 }
3670         }
3671         return ERROR_OK;
3672 }
3673
3674 COMMAND_HANDLER(handle_bp_command)
3675 {
3676         target_addr_t addr;
3677         uint32_t asid;
3678         uint32_t length;
3679         int hw = BKPT_SOFT;
3680
3681         switch (CMD_ARGC) {
3682                 case 0:
3683                         return handle_bp_command_list(CMD_CTX);
3684
3685                 case 2:
3686                         asid = 0;
3687                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3688                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3689                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3690
3691                 case 3:
3692                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3693                                 hw = BKPT_HARD;
3694                                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3695                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3696                                 asid = 0;
3697                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3698                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3699                                 hw = BKPT_HARD;
3700                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3701                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3702                                 addr = 0;
3703                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3704                         }
3705                         /* fallthrough */
3706                 case 4:
3707                         hw = BKPT_HARD;
3708                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3709                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3710                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3711                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3712
3713                 default:
3714                         return ERROR_COMMAND_SYNTAX_ERROR;
3715         }
3716 }
3717
3718 COMMAND_HANDLER(handle_rbp_command)
3719 {
3720         if (CMD_ARGC != 1)
3721                 return ERROR_COMMAND_SYNTAX_ERROR;
3722
3723         target_addr_t addr;
3724         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3725
3726         struct target *target = get_current_target(CMD_CTX);
3727         breakpoint_remove(target, addr);
3728
3729         return ERROR_OK;
3730 }
3731
3732 COMMAND_HANDLER(handle_wp_command)
3733 {
3734         struct target *target = get_current_target(CMD_CTX);
3735
3736         if (CMD_ARGC == 0) {
3737                 struct watchpoint *watchpoint = target->watchpoints;
3738
3739                 while (watchpoint) {
3740                         command_print(CMD_CTX, "address: " TARGET_ADDR_FMT
3741                                         ", len: 0x%8.8" PRIx32
3742                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3743                                         ", mask: 0x%8.8" PRIx32,
3744                                         watchpoint->address,
3745                                         watchpoint->length,
3746                                         (int)watchpoint->rw,
3747                                         watchpoint->value,
3748                                         watchpoint->mask);
3749                         watchpoint = watchpoint->next;
3750                 }
3751                 return ERROR_OK;
3752         }
3753
3754         enum watchpoint_rw type = WPT_ACCESS;
3755         uint32_t addr = 0;
3756         uint32_t length = 0;
3757         uint32_t data_value = 0x0;
3758         uint32_t data_mask = 0xffffffff;
3759
3760         switch (CMD_ARGC) {
3761         case 5:
3762                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3763                 /* fall through */
3764         case 4:
3765                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3766                 /* fall through */
3767         case 3:
3768                 switch (CMD_ARGV[2][0]) {
3769                 case 'r':
3770                         type = WPT_READ;
3771                         break;
3772                 case 'w':
3773                         type = WPT_WRITE;
3774                         break;
3775                 case 'a':
3776                         type = WPT_ACCESS;
3777                         break;
3778                 default:
3779                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3780                         return ERROR_COMMAND_SYNTAX_ERROR;
3781                 }
3782                 /* fall through */
3783         case 2:
3784                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3785                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3786                 break;
3787
3788         default:
3789                 return ERROR_COMMAND_SYNTAX_ERROR;
3790         }
3791
3792         int retval = watchpoint_add(target, addr, length, type,
3793                         data_value, data_mask);
3794         if (ERROR_OK != retval)
3795                 LOG_ERROR("Failure setting watchpoints");
3796
3797         return retval;
3798 }
3799
3800 COMMAND_HANDLER(handle_rwp_command)
3801 {
3802         if (CMD_ARGC != 1)
3803                 return ERROR_COMMAND_SYNTAX_ERROR;
3804
3805         uint32_t addr;
3806         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3807
3808         struct target *target = get_current_target(CMD_CTX);
3809         watchpoint_remove(target, addr);
3810
3811         return ERROR_OK;
3812 }
3813
3814 /**
3815  * Translate a virtual address to a physical address.
3816  *
3817  * The low-level target implementation must have logged a detailed error
3818  * which is forwarded to telnet/GDB session.
3819  */
3820 COMMAND_HANDLER(handle_virt2phys_command)
3821 {
3822         if (CMD_ARGC != 1)
3823                 return ERROR_COMMAND_SYNTAX_ERROR;
3824
3825         target_addr_t va;
3826         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], va);
3827         target_addr_t pa;
3828
3829         struct target *target = get_current_target(CMD_CTX);
3830         int retval = target->type->virt2phys(target, va, &pa);
3831         if (retval == ERROR_OK)
3832                 command_print(CMD_CTX, "Physical address " TARGET_ADDR_FMT "", pa);
3833
3834         return retval;
3835 }
3836
3837 static void writeData(FILE *f, const void *data, size_t len)
3838 {
3839         size_t written = fwrite(data, 1, len, f);
3840         if (written != len)
3841                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3842 }
3843
3844 static void writeLong(FILE *f, int l, struct target *target)
3845 {
3846         uint8_t val[4];
3847
3848         target_buffer_set_u32(target, val, l);
3849         writeData(f, val, 4);
3850 }
3851
3852 static void writeString(FILE *f, char *s)
3853 {
3854         writeData(f, s, strlen(s));
3855 }
3856
3857 typedef unsigned char UNIT[2];  /* unit of profiling */
3858
3859 /* Dump a gmon.out histogram file. */
3860 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3861                         uint32_t start_address, uint32_t end_address, struct target *target, uint32_t duration_ms)
3862 {
3863         uint32_t i;
3864         FILE *f = fopen(filename, "w");
3865         if (f == NULL)
3866                 return;
3867         writeString(f, "gmon");
3868         writeLong(f, 0x00000001, target); /* Version */
3869         writeLong(f, 0, target); /* padding */
3870         writeLong(f, 0, target); /* padding */
3871         writeLong(f, 0, target); /* padding */
3872
3873         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3874         writeData(f, &zero, 1);
3875
3876         /* figure out bucket size */
3877         uint32_t min;
3878         uint32_t max;
3879         if (with_range) {
3880                 min = start_address;
3881                 max = end_address;
3882         } else {
3883                 min = samples[0];
3884                 max = samples[0];
3885                 for (i = 0; i < sampleNum; i++) {
3886                         if (min > samples[i])
3887                                 min = samples[i];
3888                         if (max < samples[i])
3889                                 max = samples[i];
3890                 }
3891
3892                 /* max should be (largest sample + 1)
3893                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3894                 max++;
3895         }
3896
3897         int addressSpace = max - min;
3898         assert(addressSpace >= 2);
3899
3900         /* FIXME: What is the reasonable number of buckets?
3901          * The profiling result will be more accurate if there are enough buckets. */
3902         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3903         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3904         if (numBuckets > maxBuckets)
3905                 numBuckets = maxBuckets;
3906         int *buckets = malloc(sizeof(int) * numBuckets);
3907         if (buckets == NULL) {
3908                 fclose(f);
3909                 return;
3910         }
3911         memset(buckets, 0, sizeof(int) * numBuckets);
3912         for (i = 0; i < sampleNum; i++) {
3913                 uint32_t address = samples[i];
3914
3915                 if ((address < min) || (max <= address))
3916                         continue;
3917
3918                 long long a = address - min;
3919                 long long b = numBuckets;
3920                 long long c = addressSpace;
3921                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3922                 buckets[index_t]++;
3923         }
3924
3925         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3926         writeLong(f, min, target);                      /* low_pc */
3927         writeLong(f, max, target);                      /* high_pc */
3928         writeLong(f, numBuckets, target);       /* # of buckets */
3929         float sample_rate = sampleNum / (duration_ms / 1000.0);
3930         writeLong(f, sample_rate, target);
3931         writeString(f, "seconds");
3932         for (i = 0; i < (15-strlen("seconds")); i++)
3933                 writeData(f, &zero, 1);
3934         writeString(f, "s");
3935
3936         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3937
3938         char *data = malloc(2 * numBuckets);
3939         if (data != NULL) {
3940                 for (i = 0; i < numBuckets; i++) {
3941                         int val;
3942                         val = buckets[i];
3943                         if (val > 65535)
3944                                 val = 65535;
3945                         data[i * 2] = val&0xff;
3946                         data[i * 2 + 1] = (val >> 8) & 0xff;
3947                 }
3948                 free(buckets);
3949                 writeData(f, data, numBuckets * 2);
3950                 free(data);
3951         } else
3952                 free(buckets);
3953
3954         fclose(f);
3955 }
3956
3957 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3958  * which will be used as a random sampling of PC */
3959 COMMAND_HANDLER(handle_profile_command)
3960 {
3961         struct target *target = get_current_target(CMD_CTX);
3962
3963         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
3964                 return ERROR_COMMAND_SYNTAX_ERROR;
3965
3966         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
3967         uint32_t offset;
3968         uint32_t num_of_samples;
3969         int retval = ERROR_OK;
3970
3971         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
3972
3973         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
3974         if (samples == NULL) {
3975                 LOG_ERROR("No memory to store samples.");
3976                 return ERROR_FAIL;
3977         }
3978
3979         uint64_t timestart_ms = timeval_ms();
3980         /**
3981          * Some cores let us sample the PC without the
3982          * annoying halt/resume step; for example, ARMv7 PCSR.
3983          * Provide a way to use that more efficient mechanism.
3984          */
3985         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
3986                                 &num_of_samples, offset);
3987         if (retval != ERROR_OK) {
3988                 free(samples);
3989                 return retval;
3990         }
3991         uint32_t duration_ms = timeval_ms() - timestart_ms;
3992
3993         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
3994
3995         retval = target_poll(target);
3996         if (retval != ERROR_OK) {
3997                 free(samples);
3998                 return retval;
3999         }
4000         if (target->state == TARGET_RUNNING) {
4001                 retval = target_halt(target);
4002                 if (retval != ERROR_OK) {
4003                         free(samples);
4004                         return retval;
4005                 }
4006         }
4007
4008         retval = target_poll(target);
4009         if (retval != ERROR_OK) {
4010                 free(samples);
4011                 return retval;
4012         }
4013
4014         uint32_t start_address = 0;
4015         uint32_t end_address = 0;
4016         bool with_range = false;
4017         if (CMD_ARGC == 4) {
4018                 with_range = true;
4019                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
4020                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
4021         }
4022
4023         write_gmon(samples, num_of_samples, CMD_ARGV[1],
4024                    with_range, start_address, end_address, target, duration_ms);
4025         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
4026
4027         free(samples);
4028         return retval;
4029 }
4030
4031 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
4032 {
4033         char *namebuf;
4034         Jim_Obj *nameObjPtr, *valObjPtr;
4035         int result;
4036
4037         namebuf = alloc_printf("%s(%d)", varname, idx);
4038         if (!namebuf)
4039                 return JIM_ERR;
4040
4041         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4042         valObjPtr = Jim_NewIntObj(interp, val);
4043         if (!nameObjPtr || !valObjPtr) {
4044                 free(namebuf);
4045                 return JIM_ERR;
4046         }
4047
4048         Jim_IncrRefCount(nameObjPtr);
4049         Jim_IncrRefCount(valObjPtr);
4050         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
4051         Jim_DecrRefCount(interp, nameObjPtr);
4052         Jim_DecrRefCount(interp, valObjPtr);
4053         free(namebuf);
4054         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
4055         return result;
4056 }
4057
4058 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4059 {
4060         struct command_context *context;
4061         struct target *target;
4062
4063         context = current_command_context(interp);
4064         assert(context != NULL);
4065
4066         target = get_current_target(context);
4067         if (target == NULL) {
4068                 LOG_ERROR("mem2array: no current target");
4069                 return JIM_ERR;
4070         }
4071
4072         return target_mem2array(interp, target, argc - 1, argv + 1);
4073 }
4074
4075 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
4076 {
4077         long l;
4078         uint32_t width;
4079         int len;
4080         uint32_t addr;
4081         uint32_t count;
4082         uint32_t v;
4083         const char *varname;
4084         const char *phys;
4085         bool is_phys;
4086         int  n, e, retval;
4087         uint32_t i;
4088
4089         /* argv[1] = name of array to receive the data
4090          * argv[2] = desired width
4091          * argv[3] = memory address
4092          * argv[4] = count of times to read
4093          */
4094         if (argc < 4 || argc > 5) {
4095                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems [phys]");
4096                 return JIM_ERR;
4097         }
4098         varname = Jim_GetString(argv[0], &len);
4099         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4100
4101         e = Jim_GetLong(interp, argv[1], &l);
4102         width = l;
4103         if (e != JIM_OK)
4104                 return e;
4105
4106         e = Jim_GetLong(interp, argv[2], &l);
4107         addr = l;
4108         if (e != JIM_OK)
4109                 return e;
4110         e = Jim_GetLong(interp, argv[3], &l);
4111         len = l;
4112         if (e != JIM_OK)
4113                 return e;
4114         is_phys = false;
4115         if (argc > 4) {
4116                 phys = Jim_GetString(argv[4], &n);
4117                 if (!strncmp(phys, "phys", n))
4118                         is_phys = true;
4119                 else
4120                         return JIM_ERR;
4121         }
4122         switch (width) {
4123                 case 8:
4124                         width = 1;
4125                         break;
4126                 case 16:
4127                         width = 2;
4128                         break;
4129                 case 32:
4130                         width = 4;
4131                         break;
4132                 default:
4133                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4134                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
4135                         return JIM_ERR;
4136         }
4137         if (len == 0) {
4138                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4139                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
4140                 return JIM_ERR;
4141         }
4142         if ((addr + (len * width)) < addr) {
4143                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4144                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
4145                 return JIM_ERR;
4146         }
4147         /* absurd transfer size? */
4148         if (len > 65536) {
4149                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4150                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
4151                 return JIM_ERR;
4152         }
4153
4154         if ((width == 1) ||
4155                 ((width == 2) && ((addr & 1) == 0)) ||
4156                 ((width == 4) && ((addr & 3) == 0))) {
4157                 /* all is well */
4158         } else {
4159                 char buf[100];
4160                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4161                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4162                                 addr,
4163                                 width);
4164                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4165                 return JIM_ERR;
4166         }
4167
4168         /* Transfer loop */
4169
4170         /* index counter */
4171         n = 0;
4172
4173         size_t buffersize = 4096;
4174         uint8_t *buffer = malloc(buffersize);
4175         if (buffer == NULL)
4176                 return JIM_ERR;
4177
4178         /* assume ok */
4179         e = JIM_OK;
4180         while (len) {
4181                 /* Slurp... in buffer size chunks */
4182
4183                 count = len; /* in objects.. */
4184                 if (count > (buffersize / width))
4185                         count = (buffersize / width);
4186
4187                 if (is_phys)
4188                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4189                 else
4190                         retval = target_read_memory(target, addr, width, count, buffer);
4191                 if (retval != ERROR_OK) {
4192                         /* BOO !*/
4193                         LOG_ERROR("mem2array: Read @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4194                                           addr,
4195                                           width,
4196                                           count);
4197                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4198                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4199                         e = JIM_ERR;
4200                         break;
4201                 } else {
4202                         v = 0; /* shut up gcc */
4203                         for (i = 0; i < count ; i++, n++) {
4204                                 switch (width) {
4205                                         case 4:
4206                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4207                                                 break;
4208                                         case 2:
4209                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4210                                                 break;
4211                                         case 1:
4212                                                 v = buffer[i] & 0x0ff;
4213                                                 break;
4214                                 }
4215                                 new_int_array_element(interp, varname, n, v);
4216                         }
4217                         len -= count;
4218                         addr += count * width;
4219                 }
4220         }
4221
4222         free(buffer);
4223
4224         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4225
4226         return e;
4227 }
4228
4229 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4230 {
4231         char *namebuf;
4232         Jim_Obj *nameObjPtr, *valObjPtr;
4233         int result;
4234         long l;
4235
4236         namebuf = alloc_printf("%s(%d)", varname, idx);
4237         if (!namebuf)
4238                 return JIM_ERR;
4239
4240         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4241         if (!nameObjPtr) {
4242                 free(namebuf);
4243                 return JIM_ERR;
4244         }
4245
4246         Jim_IncrRefCount(nameObjPtr);
4247         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4248         Jim_DecrRefCount(interp, nameObjPtr);
4249         free(namebuf);
4250         if (valObjPtr == NULL)
4251                 return JIM_ERR;
4252
4253         result = Jim_GetLong(interp, valObjPtr, &l);
4254         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4255         *val = l;
4256         return result;
4257 }
4258
4259 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4260 {
4261         struct command_context *context;
4262         struct target *target;
4263
4264         context = current_command_context(interp);
4265         assert(context != NULL);
4266
4267         target = get_current_target(context);
4268         if (target == NULL) {
4269                 LOG_ERROR("array2mem: no current target");
4270                 return JIM_ERR;
4271         }
4272
4273         return target_array2mem(interp, target, argc-1, argv + 1);
4274 }
4275
4276 static int target_array2mem(Jim_Interp *interp, struct target *target,
4277                 int argc, Jim_Obj *const *argv)
4278 {
4279         long l;
4280         uint32_t width;
4281         int len;
4282         uint32_t addr;
4283         uint32_t count;
4284         uint32_t v;
4285         const char *varname;
4286         const char *phys;
4287         bool is_phys;
4288         int  n, e, retval;
4289         uint32_t i;
4290
4291         /* argv[1] = name of array to get the data
4292          * argv[2] = desired width
4293          * argv[3] = memory address
4294          * argv[4] = count to write
4295          */
4296         if (argc < 4 || argc > 5) {
4297                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4298                 return JIM_ERR;
4299         }
4300         varname = Jim_GetString(argv[0], &len);
4301         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4302
4303         e = Jim_GetLong(interp, argv[1], &l);
4304         width = l;
4305         if (e != JIM_OK)
4306                 return e;
4307
4308         e = Jim_GetLong(interp, argv[2], &l);
4309         addr = l;
4310         if (e != JIM_OK)
4311                 return e;
4312         e = Jim_GetLong(interp, argv[3], &l);
4313         len = l;
4314         if (e != JIM_OK)
4315                 return e;
4316         is_phys = false;
4317         if (argc > 4) {
4318                 phys = Jim_GetString(argv[4], &n);
4319                 if (!strncmp(phys, "phys", n))
4320                         is_phys = true;
4321                 else
4322                         return JIM_ERR;
4323         }
4324         switch (width) {
4325                 case 8:
4326                         width = 1;
4327                         break;
4328                 case 16:
4329                         width = 2;
4330                         break;
4331                 case 32:
4332                         width = 4;
4333                         break;
4334                 default:
4335                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4336                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4337                                         "Invalid width param, must be 8/16/32", NULL);
4338                         return JIM_ERR;
4339         }
4340         if (len == 0) {
4341                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4342                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4343                                 "array2mem: zero width read?", NULL);
4344                 return JIM_ERR;
4345         }
4346         if ((addr + (len * width)) < addr) {
4347                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4348                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4349                                 "array2mem: addr + len - wraps to zero?", NULL);
4350                 return JIM_ERR;
4351         }
4352         /* absurd transfer size? */
4353         if (len > 65536) {
4354                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4355                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4356                                 "array2mem: absurd > 64K item request", NULL);
4357                 return JIM_ERR;
4358         }
4359
4360         if ((width == 1) ||
4361                 ((width == 2) && ((addr & 1) == 0)) ||
4362                 ((width == 4) && ((addr & 3) == 0))) {
4363                 /* all is well */
4364         } else {
4365                 char buf[100];
4366                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4367                 sprintf(buf, "array2mem address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4368                                 addr,
4369                                 width);
4370                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4371                 return JIM_ERR;
4372         }
4373
4374         /* Transfer loop */
4375
4376         /* index counter */
4377         n = 0;
4378         /* assume ok */
4379         e = JIM_OK;
4380
4381         size_t buffersize = 4096;
4382         uint8_t *buffer = malloc(buffersize);
4383         if (buffer == NULL)
4384                 return JIM_ERR;
4385
4386         while (len) {
4387                 /* Slurp... in buffer size chunks */
4388
4389                 count = len; /* in objects.. */
4390                 if (count > (buffersize / width))
4391                         count = (buffersize / width);
4392
4393                 v = 0; /* shut up gcc */
4394                 for (i = 0; i < count; i++, n++) {
4395                         get_int_array_element(interp, varname, n, &v);
4396                         switch (width) {
4397                         case 4:
4398                                 target_buffer_set_u32(target, &buffer[i * width], v);
4399                                 break;
4400                         case 2:
4401                                 target_buffer_set_u16(target, &buffer[i * width], v);
4402                                 break;
4403                         case 1:
4404                                 buffer[i] = v & 0x0ff;
4405                                 break;
4406                         }
4407                 }
4408                 len -= count;
4409
4410                 if (is_phys)
4411                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4412                 else
4413                         retval = target_write_memory(target, addr, width, count, buffer);
4414                 if (retval != ERROR_OK) {
4415                         /* BOO !*/
4416                         LOG_ERROR("array2mem: Write @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4417                                           addr,
4418                                           width,
4419                                           count);
4420                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4421                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4422                         e = JIM_ERR;
4423                         break;
4424                 }
4425                 addr += count * width;
4426         }
4427
4428         free(buffer);
4429
4430         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4431
4432         return e;
4433 }
4434
4435 /* FIX? should we propagate errors here rather than printing them
4436  * and continuing?
4437  */
4438 void target_handle_event(struct target *target, enum target_event e)
4439 {
4440         struct target_event_action *teap;
4441
4442         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4443                 if (teap->event == e) {
4444                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
4445                                            target->target_number,
4446                                            target_name(target),
4447                                            target_type_name(target),
4448                                            e,
4449                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4450                                            Jim_GetString(teap->body, NULL));
4451                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4452                                 Jim_MakeErrorMessage(teap->interp);
4453                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4454                         }
4455                 }
4456         }
4457 }
4458
4459 /**
4460  * Returns true only if the target has a handler for the specified event.
4461  */
4462 bool target_has_event_action(struct target *target, enum target_event event)
4463 {
4464         struct target_event_action *teap;
4465
4466         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4467                 if (teap->event == event)
4468                         return true;
4469         }
4470         return false;
4471 }
4472
4473 enum target_cfg_param {
4474         TCFG_TYPE,
4475         TCFG_EVENT,
4476         TCFG_WORK_AREA_VIRT,
4477         TCFG_WORK_AREA_PHYS,
4478         TCFG_WORK_AREA_SIZE,
4479         TCFG_WORK_AREA_BACKUP,
4480         TCFG_ENDIAN,
4481         TCFG_COREID,
4482         TCFG_CHAIN_POSITION,
4483         TCFG_DBGBASE,
4484         TCFG_CTIBASE,
4485         TCFG_RTOS,
4486         TCFG_DEFER_EXAMINE,
4487 };
4488
4489 static Jim_Nvp nvp_config_opts[] = {
4490         { .name = "-type",             .value = TCFG_TYPE },
4491         { .name = "-event",            .value = TCFG_EVENT },
4492         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4493         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4494         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4495         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4496         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4497         { .name = "-coreid",           .value = TCFG_COREID },
4498         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4499         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4500         { .name = "-ctibase",          .value = TCFG_CTIBASE },
4501         { .name = "-rtos",             .value = TCFG_RTOS },
4502         { .name = "-defer-examine",    .value = TCFG_DEFER_EXAMINE },
4503         { .name = NULL, .value = -1 }
4504 };
4505
4506 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4507 {
4508         Jim_Nvp *n;
4509         Jim_Obj *o;
4510         jim_wide w;
4511         int e;
4512
4513         /* parse config or cget options ... */
4514         while (goi->argc > 0) {
4515                 Jim_SetEmptyResult(goi->interp);
4516                 /* Jim_GetOpt_Debug(goi); */
4517
4518                 if (target->type->target_jim_configure) {
4519                         /* target defines a configure function */
4520                         /* target gets first dibs on parameters */
4521                         e = (*(target->type->target_jim_configure))(target, goi);
4522                         if (e == JIM_OK) {
4523                                 /* more? */
4524                                 continue;
4525                         }
4526                         if (e == JIM_ERR) {
4527                                 /* An error */
4528                                 return e;
4529                         }
4530                         /* otherwise we 'continue' below */
4531                 }
4532                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4533                 if (e != JIM_OK) {
4534                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4535                         return e;
4536                 }
4537                 switch (n->value) {
4538                 case TCFG_TYPE:
4539                         /* not setable */
4540                         if (goi->isconfigure) {
4541                                 Jim_SetResultFormatted(goi->interp,
4542                                                 "not settable: %s", n->name);
4543                                 return JIM_ERR;
4544                         } else {
4545 no_params:
4546                                 if (goi->argc != 0) {
4547                                         Jim_WrongNumArgs(goi->interp,
4548                                                         goi->argc, goi->argv,
4549                                                         "NO PARAMS");
4550                                         return JIM_ERR;
4551                                 }
4552                         }
4553                         Jim_SetResultString(goi->interp,
4554                                         target_type_name(target), -1);
4555                         /* loop for more */
4556                         break;
4557                 case TCFG_EVENT:
4558                         if (goi->argc == 0) {
4559                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4560                                 return JIM_ERR;
4561                         }
4562
4563                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4564                         if (e != JIM_OK) {
4565                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4566                                 return e;
4567                         }
4568
4569                         if (goi->isconfigure) {
4570                                 if (goi->argc != 1) {
4571                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4572                                         return JIM_ERR;
4573                                 }
4574                         } else {
4575                                 if (goi->argc != 0) {
4576                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4577                                         return JIM_ERR;
4578                                 }
4579                         }
4580
4581                         {
4582                                 struct target_event_action *teap;
4583
4584                                 teap = target->event_action;
4585                                 /* replace existing? */
4586                                 while (teap) {
4587                                         if (teap->event == (enum target_event)n->value)
4588                                                 break;
4589                                         teap = teap->next;
4590                                 }
4591
4592                                 if (goi->isconfigure) {
4593                                         bool replace = true;
4594                                         if (teap == NULL) {
4595                                                 /* create new */
4596                                                 teap = calloc(1, sizeof(*teap));
4597                                                 replace = false;
4598                                         }
4599                                         teap->event = n->value;
4600                                         teap->interp = goi->interp;
4601                                         Jim_GetOpt_Obj(goi, &o);
4602                                         if (teap->body)
4603                                                 Jim_DecrRefCount(teap->interp, teap->body);
4604                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4605                                         /*
4606                                          * FIXME:
4607                                          *     Tcl/TK - "tk events" have a nice feature.
4608                                          *     See the "BIND" command.
4609                                          *    We should support that here.
4610                                          *     You can specify %X and %Y in the event code.
4611                                          *     The idea is: %T - target name.
4612                                          *     The idea is: %N - target number
4613                                          *     The idea is: %E - event name.
4614                                          */
4615                                         Jim_IncrRefCount(teap->body);
4616
4617                                         if (!replace) {
4618                                                 /* add to head of event list */
4619                                                 teap->next = target->event_action;
4620                                                 target->event_action = teap;
4621                                         }
4622                                         Jim_SetEmptyResult(goi->interp);
4623                                 } else {
4624                                         /* get */
4625                                         if (teap == NULL)
4626                                                 Jim_SetEmptyResult(goi->interp);
4627                                         else
4628                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4629                                 }
4630                         }
4631                         /* loop for more */
4632                         break;
4633
4634                 case TCFG_WORK_AREA_VIRT:
4635                         if (goi->isconfigure) {
4636                                 target_free_all_working_areas(target);
4637                                 e = Jim_GetOpt_Wide(goi, &w);
4638                                 if (e != JIM_OK)
4639                                         return e;
4640                                 target->working_area_virt = w;
4641                                 target->working_area_virt_spec = true;
4642                         } else {
4643                                 if (goi->argc != 0)
4644                                         goto no_params;
4645                         }
4646                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4647                         /* loop for more */
4648                         break;
4649
4650                 case TCFG_WORK_AREA_PHYS:
4651                         if (goi->isconfigure) {
4652                                 target_free_all_working_areas(target);
4653                                 e = Jim_GetOpt_Wide(goi, &w);
4654                                 if (e != JIM_OK)
4655                                         return e;
4656                                 target->working_area_phys = w;
4657                                 target->working_area_phys_spec = true;
4658                         } else {
4659                                 if (goi->argc != 0)
4660                                         goto no_params;
4661                         }
4662                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4663                         /* loop for more */
4664                         break;
4665
4666                 case TCFG_WORK_AREA_SIZE:
4667                         if (goi->isconfigure) {
4668                                 target_free_all_working_areas(target);
4669                                 e = Jim_GetOpt_Wide(goi, &w);
4670                                 if (e != JIM_OK)
4671                                         return e;
4672                                 target->working_area_size = w;
4673                         } else {
4674                                 if (goi->argc != 0)
4675                                         goto no_params;
4676                         }
4677                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4678                         /* loop for more */
4679                         break;
4680
4681                 case TCFG_WORK_AREA_BACKUP:
4682                         if (goi->isconfigure) {
4683                                 target_free_all_working_areas(target);
4684                                 e = Jim_GetOpt_Wide(goi, &w);
4685                                 if (e != JIM_OK)
4686                                         return e;
4687                                 /* make this exactly 1 or 0 */
4688                                 target->backup_working_area = (!!w);
4689                         } else {
4690                                 if (goi->argc != 0)
4691                                         goto no_params;
4692                         }
4693                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4694                         /* loop for more e*/
4695                         break;
4696
4697
4698                 case TCFG_ENDIAN:
4699                         if (goi->isconfigure) {
4700                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4701                                 if (e != JIM_OK) {
4702                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4703                                         return e;
4704                                 }
4705                                 target->endianness = n->value;
4706                         } else {
4707                                 if (goi->argc != 0)
4708                                         goto no_params;
4709                         }
4710                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4711                         if (n->name == NULL) {
4712                                 target->endianness = TARGET_LITTLE_ENDIAN;
4713                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4714                         }
4715                         Jim_SetResultString(goi->interp, n->name, -1);
4716                         /* loop for more */
4717                         break;
4718
4719                 case TCFG_COREID:
4720                         if (goi->isconfigure) {
4721                                 e = Jim_GetOpt_Wide(goi, &w);
4722                                 if (e != JIM_OK)
4723                                         return e;
4724                                 target->coreid = (int32_t)w;
4725                         } else {
4726                                 if (goi->argc != 0)
4727                                         goto no_params;
4728                         }
4729                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4730                         /* loop for more */
4731                         break;
4732
4733                 case TCFG_CHAIN_POSITION:
4734                         if (goi->isconfigure) {
4735                                 Jim_Obj *o_t;
4736                                 struct jtag_tap *tap;
4737                                 target_free_all_working_areas(target);
4738                                 e = Jim_GetOpt_Obj(goi, &o_t);
4739                                 if (e != JIM_OK)
4740                                         return e;
4741                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4742                                 if (tap == NULL)
4743                                         return JIM_ERR;
4744                                 /* make this exactly 1 or 0 */
4745                                 target->tap = tap;
4746                         } else {
4747                                 if (goi->argc != 0)
4748                                         goto no_params;
4749                         }
4750                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4751                         /* loop for more e*/
4752                         break;
4753                 case TCFG_DBGBASE:
4754                         if (goi->isconfigure) {
4755                                 e = Jim_GetOpt_Wide(goi, &w);
4756                                 if (e != JIM_OK)
4757                                         return e;
4758                                 target->dbgbase = (uint32_t)w;
4759                                 target->dbgbase_set = true;
4760                         } else {
4761                                 if (goi->argc != 0)
4762                                         goto no_params;
4763                         }
4764                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4765                         /* loop for more */
4766                         break;
4767                 case TCFG_CTIBASE:
4768                         if (goi->isconfigure) {
4769                                 e = Jim_GetOpt_Wide(goi, &w);
4770                                 if (e != JIM_OK)
4771                                         return e;
4772                                 target->ctibase = (uint32_t)w;
4773                                 target->ctibase_set = true;
4774                         } else {
4775                                 if (goi->argc != 0)
4776                                         goto no_params;
4777                         }
4778                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->ctibase));
4779                         /* loop for more */
4780                         break;
4781                 case TCFG_RTOS:
4782                         /* RTOS */
4783                         {
4784                                 int result = rtos_create(goi, target);
4785                                 if (result != JIM_OK)
4786                                         return result;
4787                         }
4788                         /* loop for more */
4789                         break;
4790
4791                 case TCFG_DEFER_EXAMINE:
4792                         /* DEFER_EXAMINE */
4793                         target->defer_examine = true;
4794                         /* loop for more */
4795                         break;
4796
4797                 }
4798         } /* while (goi->argc) */
4799
4800
4801                 /* done - we return */
4802         return JIM_OK;
4803 }
4804
4805 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4806 {
4807         Jim_GetOptInfo goi;
4808
4809         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4810         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4811         if (goi.argc < 1) {
4812                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4813                                  "missing: -option ...");
4814                 return JIM_ERR;
4815         }
4816         struct target *target = Jim_CmdPrivData(goi.interp);
4817         return target_configure(&goi, target);
4818 }
4819
4820 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4821 {
4822         const char *cmd_name = Jim_GetString(argv[0], NULL);
4823
4824         Jim_GetOptInfo goi;
4825         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4826
4827         if (goi.argc < 2 || goi.argc > 4) {
4828                 Jim_SetResultFormatted(goi.interp,
4829                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4830                 return JIM_ERR;
4831         }
4832
4833         target_write_fn fn;
4834         fn = target_write_memory;
4835
4836         int e;
4837         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4838                 /* consume it */
4839                 struct Jim_Obj *obj;
4840                 e = Jim_GetOpt_Obj(&goi, &obj);
4841                 if (e != JIM_OK)
4842                         return e;
4843
4844                 fn = target_write_phys_memory;
4845         }
4846
4847         jim_wide a;
4848         e = Jim_GetOpt_Wide(&goi, &a);
4849         if (e != JIM_OK)
4850                 return e;
4851
4852         jim_wide b;
4853         e = Jim_GetOpt_Wide(&goi, &b);
4854         if (e != JIM_OK)
4855                 return e;
4856
4857         jim_wide c = 1;
4858         if (goi.argc == 1) {
4859                 e = Jim_GetOpt_Wide(&goi, &c);
4860                 if (e != JIM_OK)
4861                         return e;
4862         }
4863
4864         /* all args must be consumed */
4865         if (goi.argc != 0)
4866                 return JIM_ERR;
4867
4868         struct target *target = Jim_CmdPrivData(goi.interp);
4869         unsigned data_size;
4870         if (strcasecmp(cmd_name, "mww") == 0)
4871                 data_size = 4;
4872         else if (strcasecmp(cmd_name, "mwh") == 0)
4873                 data_size = 2;
4874         else if (strcasecmp(cmd_name, "mwb") == 0)
4875                 data_size = 1;
4876         else {
4877                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4878                 return JIM_ERR;
4879         }
4880
4881         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4882 }
4883
4884 /**
4885 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4886 *
4887 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4888 *         mdh [phys] <address> [<count>] - for 16 bit reads
4889 *         mdb [phys] <address> [<count>] - for  8 bit reads
4890 *
4891 *  Count defaults to 1.
4892 *
4893 *  Calls target_read_memory or target_read_phys_memory depending on
4894 *  the presence of the "phys" argument
4895 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4896 *  to int representation in base16.
4897 *  Also outputs read data in a human readable form using command_print
4898 *
4899 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4900 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4901 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4902 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4903 *  on success, with [<count>] number of elements.
4904 *
4905 *  In case of little endian target:
4906 *      Example1: "mdw 0x00000000"  returns "10123456"
4907 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4908 *      Example3: "mdb 0x00000000" returns "56"
4909 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4910 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4911 **/
4912 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4913 {
4914         const char *cmd_name = Jim_GetString(argv[0], NULL);
4915
4916         Jim_GetOptInfo goi;
4917         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4918
4919         if ((goi.argc < 1) || (goi.argc > 3)) {
4920                 Jim_SetResultFormatted(goi.interp,
4921                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4922                 return JIM_ERR;
4923         }
4924
4925         int (*fn)(struct target *target,
4926                         target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4927         fn = target_read_memory;
4928
4929         int e;
4930         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4931                 /* consume it */
4932                 struct Jim_Obj *obj;
4933                 e = Jim_GetOpt_Obj(&goi, &obj);
4934                 if (e != JIM_OK)
4935                         return e;
4936
4937                 fn = target_read_phys_memory;
4938         }
4939
4940         /* Read address parameter */
4941         jim_wide addr;
4942         e = Jim_GetOpt_Wide(&goi, &addr);
4943         if (e != JIM_OK)
4944                 return JIM_ERR;
4945
4946         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4947         jim_wide count;
4948         if (goi.argc == 1) {
4949                 e = Jim_GetOpt_Wide(&goi, &count);
4950                 if (e != JIM_OK)
4951                         return JIM_ERR;
4952         } else
4953                 count = 1;
4954
4955         /* all args must be consumed */
4956         if (goi.argc != 0)
4957                 return JIM_ERR;
4958
4959         jim_wide dwidth = 1; /* shut up gcc */
4960         if (strcasecmp(cmd_name, "mdw") == 0)
4961                 dwidth = 4;
4962         else if (strcasecmp(cmd_name, "mdh") == 0)
4963                 dwidth = 2;
4964         else if (strcasecmp(cmd_name, "mdb") == 0)
4965                 dwidth = 1;
4966         else {
4967                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4968                 return JIM_ERR;
4969         }
4970
4971         /* convert count to "bytes" */
4972         int bytes = count * dwidth;
4973
4974         struct target *target = Jim_CmdPrivData(goi.interp);
4975         uint8_t  target_buf[32];
4976         jim_wide x, y, z;
4977         while (bytes > 0) {
4978                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4979
4980                 /* Try to read out next block */
4981                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4982
4983                 if (e != ERROR_OK) {
4984                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4985                         return JIM_ERR;
4986                 }
4987
4988                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4989                 switch (dwidth) {
4990                 case 4:
4991                         for (x = 0; x < 16 && x < y; x += 4) {
4992                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4993                                 command_print_sameline(NULL, "%08x ", (int)(z));
4994                         }
4995                         for (; (x < 16) ; x += 4)
4996                                 command_print_sameline(NULL, "         ");
4997                         break;
4998                 case 2:
4999                         for (x = 0; x < 16 && x < y; x += 2) {
5000                                 z = target_buffer_get_u16(target, &(target_buf[x]));
5001                                 command_print_sameline(NULL, "%04x ", (int)(z));
5002                         }
5003                         for (; (x < 16) ; x += 2)
5004                                 command_print_sameline(NULL, "     ");
5005                         break;
5006                 case 1:
5007                 default:
5008                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
5009                                 z = target_buffer_get_u8(target, &(target_buf[x]));
5010                                 command_print_sameline(NULL, "%02x ", (int)(z));
5011                         }
5012                         for (; (x < 16) ; x += 1)
5013                                 command_print_sameline(NULL, "   ");
5014                         break;
5015                 }
5016                 /* ascii-ify the bytes */
5017                 for (x = 0 ; x < y ; x++) {
5018                         if ((target_buf[x] >= 0x20) &&
5019                                 (target_buf[x] <= 0x7e)) {
5020                                 /* good */
5021                         } else {
5022                                 /* smack it */
5023                                 target_buf[x] = '.';
5024                         }
5025                 }
5026                 /* space pad  */
5027                 while (x < 16) {
5028                         target_buf[x] = ' ';
5029                         x++;
5030                 }
5031                 /* terminate */
5032                 target_buf[16] = 0;
5033                 /* print - with a newline */
5034                 command_print_sameline(NULL, "%s\n", target_buf);
5035                 /* NEXT... */
5036                 bytes -= 16;
5037                 addr += 16;
5038         }
5039         return JIM_OK;
5040 }
5041
5042 static int jim_target_mem2array(Jim_Interp *interp,
5043                 int argc, Jim_Obj *const *argv)
5044 {
5045         struct target *target = Jim_CmdPrivData(interp);
5046         return target_mem2array(interp, target, argc - 1, argv + 1);
5047 }
5048
5049 static int jim_target_array2mem(Jim_Interp *interp,
5050                 int argc, Jim_Obj *const *argv)
5051 {
5052         struct target *target = Jim_CmdPrivData(interp);
5053         return target_array2mem(interp, target, argc - 1, argv + 1);
5054 }
5055
5056 static int jim_target_tap_disabled(Jim_Interp *interp)
5057 {
5058         Jim_SetResultFormatted(interp, "[TAP is disabled]");
5059         return JIM_ERR;
5060 }
5061
5062 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5063 {
5064         bool allow_defer = false;
5065
5066         Jim_GetOptInfo goi;
5067         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5068         if (goi.argc > 1) {
5069                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5070                 Jim_SetResultFormatted(goi.interp,
5071                                 "usage: %s ['allow-defer']", cmd_name);
5072                 return JIM_ERR;
5073         }
5074         if (goi.argc > 0 &&
5075             strcmp(Jim_GetString(argv[1], NULL), "allow-defer") == 0) {
5076                 /* consume it */
5077                 struct Jim_Obj *obj;
5078                 int e = Jim_GetOpt_Obj(&goi, &obj);
5079                 if (e != JIM_OK)
5080                         return e;
5081                 allow_defer = true;
5082         }
5083
5084         struct target *target = Jim_CmdPrivData(interp);
5085         if (!target->tap->enabled)
5086                 return jim_target_tap_disabled(interp);
5087
5088         if (allow_defer && target->defer_examine) {
5089                 LOG_INFO("Deferring arp_examine of %s", target_name(target));
5090                 LOG_INFO("Use arp_examine command to examine it manually!");
5091                 return JIM_OK;
5092         }
5093
5094         int e = target->type->examine(target);
5095         if (e != ERROR_OK)
5096                 return JIM_ERR;
5097         return JIM_OK;
5098 }
5099
5100 static int jim_target_was_examined(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5101 {
5102         struct target *target = Jim_CmdPrivData(interp);
5103
5104         Jim_SetResultBool(interp, target_was_examined(target));
5105         return JIM_OK;
5106 }
5107
5108 static int jim_target_examine_deferred(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5109 {
5110         struct target *target = Jim_CmdPrivData(interp);
5111
5112         Jim_SetResultBool(interp, target->defer_examine);
5113         return JIM_OK;
5114 }
5115
5116 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5117 {
5118         if (argc != 1) {
5119                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5120                 return JIM_ERR;
5121         }
5122         struct target *target = Jim_CmdPrivData(interp);
5123
5124         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
5125                 return JIM_ERR;
5126
5127         return JIM_OK;
5128 }
5129
5130 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5131 {
5132         if (argc != 1) {
5133                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5134                 return JIM_ERR;
5135         }
5136         struct target *target = Jim_CmdPrivData(interp);
5137         if (!target->tap->enabled)
5138                 return jim_target_tap_disabled(interp);
5139
5140         int e;
5141         if (!(target_was_examined(target)))
5142                 e = ERROR_TARGET_NOT_EXAMINED;
5143         else
5144                 e = target->type->poll(target);
5145         if (e != ERROR_OK)
5146                 return JIM_ERR;
5147         return JIM_OK;
5148 }
5149
5150 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5151 {
5152         Jim_GetOptInfo goi;
5153         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5154
5155         if (goi.argc != 2) {
5156                 Jim_WrongNumArgs(interp, 0, argv,
5157                                 "([tT]|[fF]|assert|deassert) BOOL");
5158                 return JIM_ERR;
5159         }
5160
5161         Jim_Nvp *n;
5162         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
5163         if (e != JIM_OK) {
5164                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
5165                 return e;
5166         }
5167         /* the halt or not param */
5168         jim_wide a;
5169         e = Jim_GetOpt_Wide(&goi, &a);
5170         if (e != JIM_OK)
5171                 return e;
5172
5173         struct target *target = Jim_CmdPrivData(goi.interp);
5174         if (!target->tap->enabled)
5175                 return jim_target_tap_disabled(interp);
5176
5177         if (!target->type->assert_reset || !target->type->deassert_reset) {
5178                 Jim_SetResultFormatted(interp,
5179                                 "No target-specific reset for %s",
5180                                 target_name(target));
5181                 return JIM_ERR;
5182         }
5183
5184         if (target->defer_examine)
5185                 target_reset_examined(target);
5186
5187         /* determine if we should halt or not. */
5188         target->reset_halt = !!a;
5189         /* When this happens - all workareas are invalid. */
5190         target_free_all_working_areas_restore(target, 0);
5191
5192         /* do the assert */
5193         if (n->value == NVP_ASSERT)
5194                 e = target->type->assert_reset(target);
5195         else
5196                 e = target->type->deassert_reset(target);
5197         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5198 }
5199
5200 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5201 {
5202         if (argc != 1) {
5203                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5204                 return JIM_ERR;
5205         }
5206         struct target *target = Jim_CmdPrivData(interp);
5207         if (!target->tap->enabled)
5208                 return jim_target_tap_disabled(interp);
5209         int e = target->type->halt(target);
5210         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5211 }
5212
5213 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5214 {
5215         Jim_GetOptInfo goi;
5216         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5217
5218         /* params:  <name>  statename timeoutmsecs */
5219         if (goi.argc != 2) {
5220                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5221                 Jim_SetResultFormatted(goi.interp,
5222                                 "%s <state_name> <timeout_in_msec>", cmd_name);
5223                 return JIM_ERR;
5224         }
5225
5226         Jim_Nvp *n;
5227         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
5228         if (e != JIM_OK) {
5229                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
5230                 return e;
5231         }
5232         jim_wide a;
5233         e = Jim_GetOpt_Wide(&goi, &a);
5234         if (e != JIM_OK)
5235                 return e;
5236         struct target *target = Jim_CmdPrivData(interp);
5237         if (!target->tap->enabled)
5238                 return jim_target_tap_disabled(interp);
5239
5240         e = target_wait_state(target, n->value, a);
5241         if (e != ERROR_OK) {
5242                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5243                 Jim_SetResultFormatted(goi.interp,
5244                                 "target: %s wait %s fails (%#s) %s",
5245                                 target_name(target), n->name,
5246                                 eObj, target_strerror_safe(e));
5247                 Jim_FreeNewObj(interp, eObj);
5248                 return JIM_ERR;
5249         }
5250         return JIM_OK;
5251 }
5252 /* List for human, Events defined for this target.
5253  * scripts/programs should use 'name cget -event NAME'
5254  */
5255 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5256 {
5257         struct command_context *cmd_ctx = current_command_context(interp);
5258         assert(cmd_ctx != NULL);
5259
5260         struct target *target = Jim_CmdPrivData(interp);
5261         struct target_event_action *teap = target->event_action;
5262         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5263                                    target->target_number,
5264                                    target_name(target));
5265         command_print(cmd_ctx, "%-25s | Body", "Event");
5266         command_print(cmd_ctx, "------------------------- | "
5267                         "----------------------------------------");
5268         while (teap) {
5269                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5270                 command_print(cmd_ctx, "%-25s | %s",
5271                                 opt->name, Jim_GetString(teap->body, NULL));
5272                 teap = teap->next;
5273         }
5274         command_print(cmd_ctx, "***END***");
5275         return JIM_OK;
5276 }
5277 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5278 {
5279         if (argc != 1) {
5280                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5281                 return JIM_ERR;
5282         }
5283         struct target *target = Jim_CmdPrivData(interp);
5284         Jim_SetResultString(interp, target_state_name(target), -1);
5285         return JIM_OK;
5286 }
5287 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5288 {
5289         Jim_GetOptInfo goi;
5290         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5291         if (goi.argc != 1) {
5292                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5293                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5294                 return JIM_ERR;
5295         }
5296         Jim_Nvp *n;
5297         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5298         if (e != JIM_OK) {
5299                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5300                 return e;
5301         }
5302         struct target *target = Jim_CmdPrivData(interp);
5303         target_handle_event(target, n->value);
5304         return JIM_OK;
5305 }
5306
5307 static const struct command_registration target_instance_command_handlers[] = {
5308         {
5309                 .name = "configure",
5310                 .mode = COMMAND_CONFIG,
5311                 .jim_handler = jim_target_configure,
5312                 .help  = "configure a new target for use",
5313                 .usage = "[target_attribute ...]",
5314         },
5315         {
5316                 .name = "cget",
5317                 .mode = COMMAND_ANY,
5318                 .jim_handler = jim_target_configure,
5319                 .help  = "returns the specified target attribute",
5320                 .usage = "target_attribute",
5321         },
5322         {
5323                 .name = "mww",
5324                 .mode = COMMAND_EXEC,
5325                 .jim_handler = jim_target_mw,
5326                 .help = "Write 32-bit word(s) to target memory",
5327                 .usage = "address data [count]",
5328         },
5329         {
5330                 .name = "mwh",
5331                 .mode = COMMAND_EXEC,
5332                 .jim_handler = jim_target_mw,
5333                 .help = "Write 16-bit half-word(s) to target memory",
5334                 .usage = "address data [count]",
5335         },
5336         {
5337                 .name = "mwb",
5338                 .mode = COMMAND_EXEC,
5339                 .jim_handler = jim_target_mw,
5340                 .help = "Write byte(s) to target memory",
5341                 .usage = "address data [count]",
5342         },
5343         {
5344                 .name = "mdw",
5345                 .mode = COMMAND_EXEC,
5346                 .jim_handler = jim_target_md,
5347                 .help = "Display target memory as 32-bit words",
5348                 .usage = "address [count]",
5349         },
5350         {
5351                 .name = "mdh",
5352                 .mode = COMMAND_EXEC,
5353                 .jim_handler = jim_target_md,
5354                 .help = "Display target memory as 16-bit half-words",
5355                 .usage = "address [count]",
5356         },
5357         {
5358                 .name = "mdb",
5359                 .mode = COMMAND_EXEC,
5360                 .jim_handler = jim_target_md,
5361                 .help = "Display target memory as 8-bit bytes",
5362                 .usage = "address [count]",
5363         },
5364         {
5365                 .name = "array2mem",
5366                 .mode = COMMAND_EXEC,
5367                 .jim_handler = jim_target_array2mem,
5368                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5369                         "to target memory",
5370                 .usage = "arrayname bitwidth address count",
5371         },
5372         {
5373                 .name = "mem2array",
5374                 .mode = COMMAND_EXEC,
5375                 .jim_handler = jim_target_mem2array,
5376                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5377                         "from target memory",
5378                 .usage = "arrayname bitwidth address count",
5379         },
5380         {
5381                 .name = "eventlist",
5382                 .mode = COMMAND_EXEC,
5383                 .jim_handler = jim_target_event_list,
5384                 .help = "displays a table of events defined for this target",
5385         },
5386         {
5387                 .name = "curstate",
5388                 .mode = COMMAND_EXEC,
5389                 .jim_handler = jim_target_current_state,
5390                 .help = "displays the current state of this target",
5391         },
5392         {
5393                 .name = "arp_examine",
5394                 .mode = COMMAND_EXEC,
5395                 .jim_handler = jim_target_examine,
5396                 .help = "used internally for reset processing",
5397                 .usage = "arp_examine ['allow-defer']",
5398         },
5399         {
5400                 .name = "was_examined",
5401                 .mode = COMMAND_EXEC,
5402                 .jim_handler = jim_target_was_examined,
5403                 .help = "used internally for reset processing",
5404                 .usage = "was_examined",
5405         },
5406         {
5407                 .name = "examine_deferred",
5408                 .mode = COMMAND_EXEC,
5409                 .jim_handler = jim_target_examine_deferred,
5410                 .help = "used internally for reset processing",
5411                 .usage = "examine_deferred",
5412         },
5413         {
5414                 .name = "arp_halt_gdb",
5415                 .mode = COMMAND_EXEC,
5416                 .jim_handler = jim_target_halt_gdb,
5417                 .help = "used internally for reset processing to halt GDB",
5418         },
5419         {
5420                 .name = "arp_poll",
5421                 .mode = COMMAND_EXEC,
5422                 .jim_handler = jim_target_poll,
5423                 .help = "used internally for reset processing",
5424         },
5425         {
5426                 .name = "arp_reset",
5427                 .mode = COMMAND_EXEC,
5428                 .jim_handler = jim_target_reset,
5429                 .help = "used internally for reset processing",
5430         },
5431         {
5432                 .name = "arp_halt",
5433                 .mode = COMMAND_EXEC,
5434                 .jim_handler = jim_target_halt,
5435                 .help = "used internally for reset processing",
5436         },
5437         {
5438                 .name = "arp_waitstate",
5439                 .mode = COMMAND_EXEC,
5440                 .jim_handler = jim_target_wait_state,
5441                 .help = "used internally for reset processing",
5442         },
5443         {
5444                 .name = "invoke-event",
5445                 .mode = COMMAND_EXEC,
5446                 .jim_handler = jim_target_invoke_event,
5447                 .help = "invoke handler for specified event",
5448                 .usage = "event_name",
5449         },
5450         COMMAND_REGISTRATION_DONE
5451 };
5452
5453 static int target_create(Jim_GetOptInfo *goi)
5454 {
5455         Jim_Obj *new_cmd;
5456         Jim_Cmd *cmd;
5457         const char *cp;
5458         int e;
5459         int x;
5460         struct target *target;
5461         struct command_context *cmd_ctx;
5462
5463         cmd_ctx = current_command_context(goi->interp);
5464         assert(cmd_ctx != NULL);
5465
5466         if (goi->argc < 3) {
5467                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5468                 return JIM_ERR;
5469         }
5470
5471         /* COMMAND */
5472         Jim_GetOpt_Obj(goi, &new_cmd);
5473         /* does this command exist? */
5474         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5475         if (cmd) {
5476                 cp = Jim_GetString(new_cmd, NULL);
5477                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5478                 return JIM_ERR;
5479         }
5480
5481         /* TYPE */
5482         e = Jim_GetOpt_String(goi, &cp, NULL);
5483         if (e != JIM_OK)
5484                 return e;
5485         struct transport *tr = get_current_transport();
5486         if (tr->override_target) {
5487                 e = tr->override_target(&cp);
5488                 if (e != ERROR_OK) {
5489                         LOG_ERROR("The selected transport doesn't support this target");
5490                         return JIM_ERR;
5491                 }
5492                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5493         }
5494         /* now does target type exist */
5495         for (x = 0 ; target_types[x] ; x++) {
5496                 if (0 == strcmp(cp, target_types[x]->name)) {
5497                         /* found */
5498                         break;
5499                 }
5500
5501                 /* check for deprecated name */
5502                 if (target_types[x]->deprecated_name) {
5503                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5504                                 /* found */
5505                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5506                                 break;
5507                         }
5508                 }
5509         }
5510         if (target_types[x] == NULL) {
5511                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5512                 for (x = 0 ; target_types[x] ; x++) {
5513                         if (target_types[x + 1]) {
5514                                 Jim_AppendStrings(goi->interp,
5515                                                                    Jim_GetResult(goi->interp),
5516                                                                    target_types[x]->name,
5517                                                                    ", ", NULL);
5518                         } else {
5519                                 Jim_AppendStrings(goi->interp,
5520                                                                    Jim_GetResult(goi->interp),
5521                                                                    " or ",
5522                                                                    target_types[x]->name, NULL);
5523                         }
5524                 }
5525                 return JIM_ERR;
5526         }
5527
5528         /* Create it */
5529         target = calloc(1, sizeof(struct target));
5530         /* set target number */
5531         target->target_number = new_target_number();
5532         cmd_ctx->current_target = target->target_number;
5533
5534         /* allocate memory for each unique target type */
5535         target->type = calloc(1, sizeof(struct target_type));
5536
5537         memcpy(target->type, target_types[x], sizeof(struct target_type));
5538
5539         /* will be set by "-endian" */
5540         target->endianness = TARGET_ENDIAN_UNKNOWN;
5541
5542         /* default to first core, override with -coreid */
5543         target->coreid = 0;
5544
5545         target->working_area        = 0x0;
5546         target->working_area_size   = 0x0;
5547         target->working_areas       = NULL;
5548         target->backup_working_area = 0;
5549
5550         target->state               = TARGET_UNKNOWN;
5551         target->debug_reason        = DBG_REASON_UNDEFINED;
5552         target->reg_cache           = NULL;
5553         target->breakpoints         = NULL;
5554         target->watchpoints         = NULL;
5555         target->next                = NULL;
5556         target->arch_info           = NULL;
5557
5558         target->display             = 1;
5559
5560         target->halt_issued                     = false;
5561
5562         /* initialize trace information */
5563         target->trace_info = calloc(1, sizeof(struct trace));
5564
5565         target->dbgmsg          = NULL;
5566         target->dbg_msg_enabled = 0;
5567
5568         target->endianness = TARGET_ENDIAN_UNKNOWN;
5569
5570         target->rtos = NULL;
5571         target->rtos_auto_detect = false;
5572
5573         /* Do the rest as "configure" options */
5574         goi->isconfigure = 1;
5575         e = target_configure(goi, target);
5576
5577         if (target->tap == NULL) {
5578                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
5579                 e = JIM_ERR;
5580         }
5581
5582         if (e != JIM_OK) {
5583                 free(target->type);
5584                 free(target);
5585                 return e;
5586         }
5587
5588         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5589                 /* default endian to little if not specified */
5590                 target->endianness = TARGET_LITTLE_ENDIAN;
5591         }
5592
5593         cp = Jim_GetString(new_cmd, NULL);
5594         target->cmd_name = strdup(cp);
5595
5596         /* create the target specific commands */
5597         if (target->type->commands) {
5598                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5599                 if (ERROR_OK != e)
5600                         LOG_ERROR("unable to register '%s' commands", cp);
5601         }
5602         if (target->type->target_create)
5603                 (*(target->type->target_create))(target, goi->interp);
5604
5605         /* append to end of list */
5606         {
5607                 struct target **tpp;
5608                 tpp = &(all_targets);
5609                 while (*tpp)
5610                         tpp = &((*tpp)->next);
5611                 *tpp = target;
5612         }
5613
5614         /* now - create the new target name command */
5615         const struct command_registration target_subcommands[] = {
5616                 {
5617                         .chain = target_instance_command_handlers,
5618                 },
5619                 {
5620                         .chain = target->type->commands,
5621                 },
5622                 COMMAND_REGISTRATION_DONE
5623         };
5624         const struct command_registration target_commands[] = {
5625                 {
5626                         .name = cp,
5627                         .mode = COMMAND_ANY,
5628                         .help = "target command group",
5629                         .usage = "",
5630                         .chain = target_subcommands,
5631                 },
5632                 COMMAND_REGISTRATION_DONE
5633         };
5634         e = register_commands(cmd_ctx, NULL, target_commands);
5635         if (ERROR_OK != e)
5636                 return JIM_ERR;
5637
5638         struct command *c = command_find_in_context(cmd_ctx, cp);
5639         assert(c);
5640         command_set_handler_data(c, target);
5641
5642         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5643 }
5644
5645 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5646 {
5647         if (argc != 1) {
5648                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5649                 return JIM_ERR;
5650         }
5651         struct command_context *cmd_ctx = current_command_context(interp);
5652         assert(cmd_ctx != NULL);
5653
5654         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5655         return JIM_OK;
5656 }
5657
5658 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5659 {
5660         if (argc != 1) {
5661                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5662                 return JIM_ERR;
5663         }
5664         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5665         for (unsigned x = 0; NULL != target_types[x]; x++) {
5666                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5667                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5668         }
5669         return JIM_OK;
5670 }
5671
5672 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5673 {
5674         if (argc != 1) {
5675                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5676                 return JIM_ERR;
5677         }
5678         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5679         struct target *target = all_targets;
5680         while (target) {
5681                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5682                         Jim_NewStringObj(interp, target_name(target), -1));
5683                 target = target->next;
5684         }
5685         return JIM_OK;
5686 }
5687
5688 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5689 {
5690         int i;
5691         const char *targetname;
5692         int retval, len;
5693         struct target *target = (struct target *) NULL;
5694         struct target_list *head, *curr, *new;
5695         curr = (struct target_list *) NULL;
5696         head = (struct target_list *) NULL;
5697
5698         retval = 0;
5699         LOG_DEBUG("%d", argc);
5700         /* argv[1] = target to associate in smp
5701          * argv[2] = target to assoicate in smp
5702          * argv[3] ...
5703          */
5704
5705         for (i = 1; i < argc; i++) {
5706
5707                 targetname = Jim_GetString(argv[i], &len);
5708                 target = get_target(targetname);
5709                 LOG_DEBUG("%s ", targetname);
5710                 if (target) {
5711                         new = malloc(sizeof(struct target_list));
5712                         new->target = target;
5713                         new->next = (struct target_list *)NULL;
5714                         if (head == (struct target_list *)NULL) {
5715                                 head = new;
5716                                 curr = head;
5717                         } else {
5718                                 curr->next = new;
5719                                 curr = new;
5720                         }
5721                 }
5722         }
5723         /*  now parse the list of cpu and put the target in smp mode*/
5724         curr = head;
5725
5726         while (curr != (struct target_list *)NULL) {
5727                 target = curr->target;
5728                 target->smp = 1;
5729                 target->head = head;
5730                 curr = curr->next;
5731         }
5732
5733         if (target && target->rtos)
5734                 retval = rtos_smp_init(head->target);
5735
5736         return retval;
5737 }
5738
5739
5740 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5741 {
5742         Jim_GetOptInfo goi;
5743         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5744         if (goi.argc < 3) {
5745                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5746                         "<name> <target_type> [<target_options> ...]");
5747                 return JIM_ERR;
5748         }
5749         return target_create(&goi);
5750 }
5751
5752 static const struct command_registration target_subcommand_handlers[] = {
5753         {
5754                 .name = "init",
5755                 .mode = COMMAND_CONFIG,
5756                 .handler = handle_target_init_command,
5757                 .help = "initialize targets",
5758         },
5759         {
5760                 .name = "create",
5761                 /* REVISIT this should be COMMAND_CONFIG ... */
5762                 .mode = COMMAND_ANY,
5763                 .jim_handler = jim_target_create,
5764                 .usage = "name type '-chain-position' name [options ...]",
5765                 .help = "Creates and selects a new target",
5766         },
5767         {
5768                 .name = "current",
5769                 .mode = COMMAND_ANY,
5770                 .jim_handler = jim_target_current,
5771                 .help = "Returns the currently selected target",
5772         },
5773         {
5774                 .name = "types",
5775                 .mode = COMMAND_ANY,
5776                 .jim_handler = jim_target_types,
5777                 .help = "Returns the available target types as "
5778                                 "a list of strings",
5779         },
5780         {
5781                 .name = "names",
5782                 .mode = COMMAND_ANY,
5783                 .jim_handler = jim_target_names,
5784                 .help = "Returns the names of all targets as a list of strings",
5785         },
5786         {
5787                 .name = "smp",
5788                 .mode = COMMAND_ANY,
5789                 .jim_handler = jim_target_smp,
5790                 .usage = "targetname1 targetname2 ...",
5791                 .help = "gather several target in a smp list"
5792         },
5793
5794         COMMAND_REGISTRATION_DONE
5795 };
5796
5797 struct FastLoad {
5798         target_addr_t address;
5799         uint8_t *data;
5800         int length;
5801
5802 };
5803
5804 static int fastload_num;
5805 static struct FastLoad *fastload;
5806
5807 static void free_fastload(void)
5808 {
5809         if (fastload != NULL) {
5810                 int i;
5811                 for (i = 0; i < fastload_num; i++) {
5812                         if (fastload[i].data)
5813                                 free(fastload[i].data);
5814                 }
5815                 free(fastload);
5816                 fastload = NULL;
5817         }
5818 }
5819
5820 COMMAND_HANDLER(handle_fast_load_image_command)
5821 {
5822         uint8_t *buffer;
5823         size_t buf_cnt;
5824         uint32_t image_size;
5825         target_addr_t min_address = 0;
5826         target_addr_t max_address = -1;
5827         int i;
5828
5829         struct image image;
5830
5831         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5832                         &image, &min_address, &max_address);
5833         if (ERROR_OK != retval)
5834                 return retval;
5835
5836         struct duration bench;
5837         duration_start(&bench);
5838
5839         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5840         if (retval != ERROR_OK)
5841                 return retval;
5842
5843         image_size = 0x0;
5844         retval = ERROR_OK;
5845         fastload_num = image.num_sections;
5846         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5847         if (fastload == NULL) {
5848                 command_print(CMD_CTX, "out of memory");
5849                 image_close(&image);
5850                 return ERROR_FAIL;
5851         }
5852         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5853         for (i = 0; i < image.num_sections; i++) {
5854                 buffer = malloc(image.sections[i].size);
5855                 if (buffer == NULL) {
5856                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5857                                                   (int)(image.sections[i].size));
5858                         retval = ERROR_FAIL;
5859                         break;
5860                 }
5861
5862                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5863                 if (retval != ERROR_OK) {
5864                         free(buffer);
5865                         break;
5866                 }
5867
5868                 uint32_t offset = 0;
5869                 uint32_t length = buf_cnt;
5870
5871                 /* DANGER!!! beware of unsigned comparision here!!! */
5872
5873                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5874                                 (image.sections[i].base_address < max_address)) {
5875                         if (image.sections[i].base_address < min_address) {
5876                                 /* clip addresses below */
5877                                 offset += min_address-image.sections[i].base_address;
5878                                 length -= offset;
5879                         }
5880
5881                         if (image.sections[i].base_address + buf_cnt > max_address)
5882                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5883
5884                         fastload[i].address = image.sections[i].base_address + offset;
5885                         fastload[i].data = malloc(length);
5886                         if (fastload[i].data == NULL) {
5887                                 free(buffer);
5888                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5889                                                           length);
5890                                 retval = ERROR_FAIL;
5891                                 break;
5892                         }
5893                         memcpy(fastload[i].data, buffer + offset, length);
5894                         fastload[i].length = length;
5895
5896                         image_size += length;
5897                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5898                                                   (unsigned int)length,
5899                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5900                 }
5901
5902                 free(buffer);
5903         }
5904
5905         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5906                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5907                                 "in %fs (%0.3f KiB/s)", image_size,
5908                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5909
5910                 command_print(CMD_CTX,
5911                                 "WARNING: image has not been loaded to target!"
5912                                 "You can issue a 'fast_load' to finish loading.");
5913         }
5914
5915         image_close(&image);
5916
5917         if (retval != ERROR_OK)
5918                 free_fastload();
5919
5920         return retval;
5921 }
5922
5923 COMMAND_HANDLER(handle_fast_load_command)
5924 {
5925         if (CMD_ARGC > 0)
5926                 return ERROR_COMMAND_SYNTAX_ERROR;
5927         if (fastload == NULL) {
5928                 LOG_ERROR("No image in memory");
5929                 return ERROR_FAIL;
5930         }
5931         int i;
5932         int64_t ms = timeval_ms();
5933         int size = 0;
5934         int retval = ERROR_OK;
5935         for (i = 0; i < fastload_num; i++) {
5936                 struct target *target = get_current_target(CMD_CTX);
5937                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5938                                           (unsigned int)(fastload[i].address),
5939                                           (unsigned int)(fastload[i].length));
5940                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5941                 if (retval != ERROR_OK)
5942                         break;
5943                 size += fastload[i].length;
5944         }
5945         if (retval == ERROR_OK) {
5946                 int64_t after = timeval_ms();
5947                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5948         }
5949         return retval;
5950 }
5951
5952 static const struct command_registration target_command_handlers[] = {
5953         {
5954                 .name = "targets",
5955                 .handler = handle_targets_command,
5956                 .mode = COMMAND_ANY,
5957                 .help = "change current default target (one parameter) "
5958                         "or prints table of all targets (no parameters)",
5959                 .usage = "[target]",
5960         },
5961         {
5962                 .name = "target",
5963                 .mode = COMMAND_CONFIG,
5964                 .help = "configure target",
5965
5966                 .chain = target_subcommand_handlers,
5967         },
5968         COMMAND_REGISTRATION_DONE
5969 };
5970
5971 int target_register_commands(struct command_context *cmd_ctx)
5972 {
5973         return register_commands(cmd_ctx, NULL, target_command_handlers);
5974 }
5975
5976 static bool target_reset_nag = true;
5977
5978 bool get_target_reset_nag(void)
5979 {
5980         return target_reset_nag;
5981 }
5982
5983 COMMAND_HANDLER(handle_target_reset_nag)
5984 {
5985         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5986                         &target_reset_nag, "Nag after each reset about options to improve "
5987                         "performance");
5988 }
5989
5990 COMMAND_HANDLER(handle_ps_command)
5991 {
5992         struct target *target = get_current_target(CMD_CTX);
5993         char *display;
5994         if (target->state != TARGET_HALTED) {
5995                 LOG_INFO("target not halted !!");
5996                 return ERROR_OK;
5997         }
5998
5999         if ((target->rtos) && (target->rtos->type)
6000                         && (target->rtos->type->ps_command)) {
6001                 display = target->rtos->type->ps_command(target);
6002                 command_print(CMD_CTX, "%s", display);
6003                 free(display);
6004                 return ERROR_OK;
6005         } else {
6006                 LOG_INFO("failed");
6007                 return ERROR_TARGET_FAILURE;
6008         }
6009 }
6010
6011 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
6012 {
6013         if (text != NULL)
6014                 command_print_sameline(cmd_ctx, "%s", text);
6015         for (int i = 0; i < size; i++)
6016                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
6017         command_print(cmd_ctx, " ");
6018 }
6019
6020 COMMAND_HANDLER(handle_test_mem_access_command)
6021 {
6022         struct target *target = get_current_target(CMD_CTX);
6023         uint32_t test_size;
6024         int retval = ERROR_OK;
6025
6026         if (target->state != TARGET_HALTED) {
6027                 LOG_INFO("target not halted !!");
6028                 return ERROR_FAIL;
6029         }
6030
6031         if (CMD_ARGC != 1)
6032                 return ERROR_COMMAND_SYNTAX_ERROR;
6033
6034         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
6035
6036         /* Test reads */
6037         size_t num_bytes = test_size + 4;
6038
6039         struct working_area *wa = NULL;
6040         retval = target_alloc_working_area(target, num_bytes, &wa);
6041         if (retval != ERROR_OK) {
6042                 LOG_ERROR("Not enough working area");
6043                 return ERROR_FAIL;
6044         }
6045
6046         uint8_t *test_pattern = malloc(num_bytes);
6047
6048         for (size_t i = 0; i < num_bytes; i++)
6049                 test_pattern[i] = rand();
6050
6051         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6052         if (retval != ERROR_OK) {
6053                 LOG_ERROR("Test pattern write failed");
6054                 goto out;
6055         }
6056
6057         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6058                 for (int size = 1; size <= 4; size *= 2) {
6059                         for (int offset = 0; offset < 4; offset++) {
6060                                 uint32_t count = test_size / size;
6061                                 size_t host_bufsiz = (count + 2) * size + host_offset;
6062                                 uint8_t *read_ref = malloc(host_bufsiz);
6063                                 uint8_t *read_buf = malloc(host_bufsiz);
6064
6065                                 for (size_t i = 0; i < host_bufsiz; i++) {
6066                                         read_ref[i] = rand();
6067                                         read_buf[i] = read_ref[i];
6068                                 }
6069                                 command_print_sameline(CMD_CTX,
6070                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
6071                                                 size, offset, host_offset ? "un" : "");
6072
6073                                 struct duration bench;
6074                                 duration_start(&bench);
6075
6076                                 retval = target_read_memory(target, wa->address + offset, size, count,
6077                                                 read_buf + size + host_offset);
6078
6079                                 duration_measure(&bench);
6080
6081                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6082                                         command_print(CMD_CTX, "Unsupported alignment");
6083                                         goto next;
6084                                 } else if (retval != ERROR_OK) {
6085                                         command_print(CMD_CTX, "Memory read failed");
6086                                         goto next;
6087                                 }
6088
6089                                 /* replay on host */
6090                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
6091
6092                                 /* check result */
6093                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
6094                                 if (result == 0) {
6095                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6096                                                         duration_elapsed(&bench),
6097                                                         duration_kbps(&bench, count * size));
6098                                 } else {
6099                                         command_print(CMD_CTX, "Compare failed");
6100                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
6101                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
6102                                 }
6103 next:
6104                                 free(read_ref);
6105                                 free(read_buf);
6106                         }
6107                 }
6108         }
6109
6110 out:
6111         free(test_pattern);
6112
6113         if (wa != NULL)
6114                 target_free_working_area(target, wa);
6115
6116         /* Test writes */
6117         num_bytes = test_size + 4 + 4 + 4;
6118
6119         retval = target_alloc_working_area(target, num_bytes, &wa);
6120         if (retval != ERROR_OK) {
6121                 LOG_ERROR("Not enough working area");
6122                 return ERROR_FAIL;
6123         }
6124
6125         test_pattern = malloc(num_bytes);
6126
6127         for (size_t i = 0; i < num_bytes; i++)
6128                 test_pattern[i] = rand();
6129
6130         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6131                 for (int size = 1; size <= 4; size *= 2) {
6132                         for (int offset = 0; offset < 4; offset++) {
6133                                 uint32_t count = test_size / size;
6134                                 size_t host_bufsiz = count * size + host_offset;
6135                                 uint8_t *read_ref = malloc(num_bytes);
6136                                 uint8_t *read_buf = malloc(num_bytes);
6137                                 uint8_t *write_buf = malloc(host_bufsiz);
6138
6139                                 for (size_t i = 0; i < host_bufsiz; i++)
6140                                         write_buf[i] = rand();
6141                                 command_print_sameline(CMD_CTX,
6142                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
6143                                                 size, offset, host_offset ? "un" : "");
6144
6145                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6146                                 if (retval != ERROR_OK) {
6147                                         command_print(CMD_CTX, "Test pattern write failed");
6148                                         goto nextw;
6149                                 }
6150
6151                                 /* replay on host */
6152                                 memcpy(read_ref, test_pattern, num_bytes);
6153                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
6154
6155                                 struct duration bench;
6156                                 duration_start(&bench);
6157
6158                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
6159                                                 write_buf + host_offset);
6160
6161                                 duration_measure(&bench);
6162
6163                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6164                                         command_print(CMD_CTX, "Unsupported alignment");
6165                                         goto nextw;
6166                                 } else if (retval != ERROR_OK) {
6167                                         command_print(CMD_CTX, "Memory write failed");
6168                                         goto nextw;
6169                                 }
6170
6171                                 /* read back */
6172                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
6173                                 if (retval != ERROR_OK) {
6174                                         command_print(CMD_CTX, "Test pattern write failed");
6175                                         goto nextw;
6176                                 }
6177
6178                                 /* check result */
6179                                 int result = memcmp(read_ref, read_buf, num_bytes);
6180                                 if (result == 0) {
6181                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6182                                                         duration_elapsed(&bench),
6183                                                         duration_kbps(&bench, count * size));
6184                                 } else {
6185                                         command_print(CMD_CTX, "Compare failed");
6186                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
6187                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
6188                                 }
6189 nextw:
6190                                 free(read_ref);
6191                                 free(read_buf);
6192                         }
6193                 }
6194         }
6195
6196         free(test_pattern);
6197
6198         if (wa != NULL)
6199                 target_free_working_area(target, wa);
6200         return retval;
6201 }
6202
6203 static const struct command_registration target_exec_command_handlers[] = {
6204         {
6205                 .name = "fast_load_image",
6206                 .handler = handle_fast_load_image_command,
6207                 .mode = COMMAND_ANY,
6208                 .help = "Load image into server memory for later use by "
6209                         "fast_load; primarily for profiling",
6210                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6211                         "[min_address [max_length]]",
6212         },
6213         {
6214                 .name = "fast_load",
6215                 .handler = handle_fast_load_command,
6216                 .mode = COMMAND_EXEC,
6217                 .help = "loads active fast load image to current target "
6218                         "- mainly for profiling purposes",
6219                 .usage = "",
6220         },
6221         {
6222                 .name = "profile",
6223                 .handler = handle_profile_command,
6224                 .mode = COMMAND_EXEC,
6225                 .usage = "seconds filename [start end]",
6226                 .help = "profiling samples the CPU PC",
6227         },
6228         /** @todo don't register virt2phys() unless target supports it */
6229         {
6230                 .name = "virt2phys",
6231                 .handler = handle_virt2phys_command,
6232                 .mode = COMMAND_ANY,
6233                 .help = "translate a virtual address into a physical address",
6234                 .usage = "virtual_address",
6235         },
6236         {
6237                 .name = "reg",
6238                 .handler = handle_reg_command,
6239                 .mode = COMMAND_EXEC,
6240                 .help = "display (reread from target with \"force\") or set a register; "
6241                         "with no arguments, displays all registers and their values",
6242                 .usage = "[(register_number|register_name) [(value|'force')]]",
6243         },
6244         {
6245                 .name = "poll",
6246                 .handler = handle_poll_command,
6247                 .mode = COMMAND_EXEC,
6248                 .help = "poll target state; or reconfigure background polling",
6249                 .usage = "['on'|'off']",
6250         },
6251         {
6252                 .name = "wait_halt",
6253                 .handler = handle_wait_halt_command,
6254                 .mode = COMMAND_EXEC,
6255                 .help = "wait up to the specified number of milliseconds "
6256                         "(default 5000) for a previously requested halt",
6257                 .usage = "[milliseconds]",
6258         },
6259         {
6260                 .name = "halt",
6261                 .handler = handle_halt_command,
6262                 .mode = COMMAND_EXEC,
6263                 .help = "request target to halt, then wait up to the specified"
6264                         "number of milliseconds (default 5000) for it to complete",
6265                 .usage = "[milliseconds]",
6266         },
6267         {
6268                 .name = "resume",
6269                 .handler = handle_resume_command,
6270                 .mode = COMMAND_EXEC,
6271                 .help = "resume target execution from current PC or address",
6272                 .usage = "[address]",
6273         },
6274         {
6275                 .name = "reset",
6276                 .handler = handle_reset_command,
6277                 .mode = COMMAND_EXEC,
6278                 .usage = "[run|halt|init]",
6279                 .help = "Reset all targets into the specified mode."
6280                         "Default reset mode is run, if not given.",
6281         },
6282         {
6283                 .name = "soft_reset_halt",
6284                 .handler = handle_soft_reset_halt_command,
6285                 .mode = COMMAND_EXEC,
6286                 .usage = "",
6287                 .help = "halt the target and do a soft reset",
6288         },
6289         {
6290                 .name = "step",
6291                 .handler = handle_step_command,
6292                 .mode = COMMAND_EXEC,
6293                 .help = "step one instruction from current PC or address",
6294                 .usage = "[address]",
6295         },
6296         {
6297                 .name = "mdd",
6298                 .handler = handle_md_command,
6299                 .mode = COMMAND_EXEC,
6300                 .help = "display memory words",
6301                 .usage = "['phys'] address [count]",
6302         },
6303         {
6304                 .name = "mdw",
6305                 .handler = handle_md_command,
6306                 .mode = COMMAND_EXEC,
6307                 .help = "display memory words",
6308                 .usage = "['phys'] address [count]",
6309         },
6310         {
6311                 .name = "mdh",
6312                 .handler = handle_md_command,
6313                 .mode = COMMAND_EXEC,
6314                 .help = "display memory half-words",
6315                 .usage = "['phys'] address [count]",
6316         },
6317         {
6318                 .name = "mdb",
6319                 .handler = handle_md_command,
6320                 .mode = COMMAND_EXEC,
6321                 .help = "display memory bytes",
6322                 .usage = "['phys'] address [count]",
6323         },
6324         {
6325                 .name = "mwd",
6326                 .handler = handle_mw_command,
6327                 .mode = COMMAND_EXEC,
6328                 .help = "write memory word",
6329                 .usage = "['phys'] address value [count]",
6330         },
6331         {
6332                 .name = "mww",
6333                 .handler = handle_mw_command,
6334                 .mode = COMMAND_EXEC,
6335                 .help = "write memory word",
6336                 .usage = "['phys'] address value [count]",
6337         },
6338         {
6339                 .name = "mwh",
6340                 .handler = handle_mw_command,
6341                 .mode = COMMAND_EXEC,
6342                 .help = "write memory half-word",
6343                 .usage = "['phys'] address value [count]",
6344         },
6345         {
6346                 .name = "mwb",
6347                 .handler = handle_mw_command,
6348                 .mode = COMMAND_EXEC,
6349                 .help = "write memory byte",
6350                 .usage = "['phys'] address value [count]",
6351         },
6352         {
6353                 .name = "bp",
6354                 .handler = handle_bp_command,
6355                 .mode = COMMAND_EXEC,
6356                 .help = "list or set hardware or software breakpoint",
6357                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
6358         },
6359         {
6360                 .name = "rbp",
6361                 .handler = handle_rbp_command,
6362                 .mode = COMMAND_EXEC,
6363                 .help = "remove breakpoint",
6364                 .usage = "address",
6365         },
6366         {
6367                 .name = "wp",
6368                 .handler = handle_wp_command,
6369                 .mode = COMMAND_EXEC,
6370                 .help = "list (no params) or create watchpoints",
6371                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6372         },
6373         {
6374                 .name = "rwp",
6375                 .handler = handle_rwp_command,
6376                 .mode = COMMAND_EXEC,
6377                 .help = "remove watchpoint",
6378                 .usage = "address",
6379         },
6380         {
6381                 .name = "load_image",
6382                 .handler = handle_load_image_command,
6383                 .mode = COMMAND_EXEC,
6384                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6385                         "[min_address] [max_length]",
6386         },
6387         {
6388                 .name = "dump_image",
6389                 .handler = handle_dump_image_command,
6390                 .mode = COMMAND_EXEC,
6391                 .usage = "filename address size",
6392         },
6393         {
6394                 .name = "verify_image_checksum",
6395                 .handler = handle_verify_image_checksum_command,
6396                 .mode = COMMAND_EXEC,
6397                 .usage = "filename [offset [type]]",
6398         },
6399         {
6400                 .name = "verify_image",
6401                 .handler = handle_verify_image_command,
6402                 .mode = COMMAND_EXEC,
6403                 .usage = "filename [offset [type]]",
6404         },
6405         {
6406                 .name = "test_image",
6407                 .handler = handle_test_image_command,
6408                 .mode = COMMAND_EXEC,
6409                 .usage = "filename [offset [type]]",
6410         },
6411         {
6412                 .name = "mem2array",
6413                 .mode = COMMAND_EXEC,
6414                 .jim_handler = jim_mem2array,
6415                 .help = "read 8/16/32 bit memory and return as a TCL array "
6416                         "for script processing",
6417                 .usage = "arrayname bitwidth address count",
6418         },
6419         {
6420                 .name = "array2mem",
6421                 .mode = COMMAND_EXEC,
6422                 .jim_handler = jim_array2mem,
6423                 .help = "convert a TCL array to memory locations "
6424                         "and write the 8/16/32 bit values",
6425                 .usage = "arrayname bitwidth address count",
6426         },
6427         {
6428                 .name = "reset_nag",
6429                 .handler = handle_target_reset_nag,
6430                 .mode = COMMAND_ANY,
6431                 .help = "Nag after each reset about options that could have been "
6432                                 "enabled to improve performance. ",
6433                 .usage = "['enable'|'disable']",
6434         },
6435         {
6436                 .name = "ps",
6437                 .handler = handle_ps_command,
6438                 .mode = COMMAND_EXEC,
6439                 .help = "list all tasks ",
6440                 .usage = " ",
6441         },
6442         {
6443                 .name = "test_mem_access",
6444                 .handler = handle_test_mem_access_command,
6445                 .mode = COMMAND_EXEC,
6446                 .help = "Test the target's memory access functions",
6447                 .usage = "size",
6448         },
6449
6450         COMMAND_REGISTRATION_DONE
6451 };
6452 static int target_register_user_commands(struct command_context *cmd_ctx)
6453 {
6454         int retval = ERROR_OK;
6455         retval = target_request_register_commands(cmd_ctx);
6456         if (retval != ERROR_OK)
6457                 return retval;
6458
6459         retval = trace_register_commands(cmd_ctx);
6460         if (retval != ERROR_OK)
6461                 return retval;
6462
6463
6464         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6465 }