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 #include "arm_cti.h"
  58
  59 /* default halt wait timeout (ms) */
  60 #define DEFAULT_HALT_TIMEOUT 5000
  61
  62 static int target_read_buffer_default(struct target *target, target_addr_t address,
  63                 uint32_t count, uint8_t *buffer);
  64 static int target_write_buffer_default(struct target *target, target_addr_t address,
  65                 uint32_t count, const uint8_t *buffer);
  66 static int target_array2mem(Jim_Interp *interp, struct target *target,
  67                 int argc, Jim_Obj * const *argv);
  68 static int target_mem2array(Jim_Interp *interp, struct target *target,
  69                 int argc, Jim_Obj * const *argv);
  70 static int target_register_user_commands(struct command_context *cmd_ctx);
  71 static int target_get_gdb_fileio_info_default(struct target *target,
  72                 struct gdb_fileio_info *fileio_info);
  73 static int target_gdb_fileio_end_default(struct target *target, int retcode,
  74                 int fileio_errno, bool ctrl_c);
  75 static int target_profiling_default(struct target *target, uint32_t *samples,
  76                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds);
  77
  78 /* targets */
  79 extern struct target_type arm7tdmi_target;
  80 extern struct target_type arm720t_target;
  81 extern struct target_type arm9tdmi_target;
  82 extern struct target_type arm920t_target;
  83 extern struct target_type arm966e_target;
  84 extern struct target_type arm946e_target;
  85 extern struct target_type arm926ejs_target;
  86 extern struct target_type fa526_target;
  87 extern struct target_type feroceon_target;
  88 extern struct target_type dragonite_target;
  89 extern struct target_type xscale_target;
  90 extern struct target_type cortexm_target;
  91 extern struct target_type cortexa_target;
  92 extern struct target_type aarch64_target;
  93 extern struct target_type cortexr4_target;
  94 extern struct target_type arm11_target;
  95 extern struct target_type ls1_sap_target;
  96 extern struct target_type mips_m4k_target;
  97 extern struct target_type avr_target;
  98 extern struct target_type dsp563xx_target;
  99 extern struct target_type dsp5680xx_target;
 100 extern struct target_type testee_target;
 101 extern struct target_type avr32_ap7k_target;
 102 extern struct target_type hla_target;
 103 extern struct target_type nds32_v2_target;
 104 extern struct target_type nds32_v3_target;
 105 extern struct target_type nds32_v3m_target;
 106 extern struct target_type or1k_target;
 107 extern struct target_type quark_x10xx_target;
 108 extern struct target_type quark_d20xx_target;
 109 extern struct target_type stm8_target;
 110 extern struct target_type riscv_target;
 111
 112 static struct target_type *target_types[] = {
 113         &arm7tdmi_target,
 114         &arm9tdmi_target,
 115         &arm920t_target,
 116         &arm720t_target,
 117         &arm966e_target,
 118         &arm946e_target,
 119         &arm926ejs_target,
 120         &fa526_target,
 121         &feroceon_target,
 122         &dragonite_target,
 123         &xscale_target,
 124         &cortexm_target,
 125         &cortexa_target,
 126         &cortexr4_target,
 127         &arm11_target,
 128         &ls1_sap_target,
 129         &mips_m4k_target,
 130         &avr_target,
 131         &dsp563xx_target,
 132         &dsp5680xx_target,
 133         &testee_target,
 134         &avr32_ap7k_target,
 135         &hla_target,
 136         &nds32_v2_target,
 137         &nds32_v3_target,
 138         &nds32_v3m_target,
 139         &or1k_target,
 140         &quark_x10xx_target,
 141         &quark_d20xx_target,
 142         &stm8_target,
 143         &riscv_target,
 144 #if BUILD_TARGET64
 145         &aarch64_target,
 146 #endif
 147         NULL,
 148 };
 149
 150 struct target *all_targets;
 151 static struct target_event_callback *target_event_callbacks;
 152 static struct target_timer_callback *target_timer_callbacks;
 153 LIST_HEAD(target_reset_callback_list);
 154 LIST_HEAD(target_trace_callback_list);
 155 static const int polling_interval = 100;
 156
 157 static const Jim_Nvp nvp_assert[] = {
 158         { .name = "assert", NVP_ASSERT },
 159         { .name = "deassert", NVP_DEASSERT },
 160         { .name = "T", NVP_ASSERT },
 161         { .name = "F", NVP_DEASSERT },
 162         { .name = "t", NVP_ASSERT },
 163         { .name = "f", NVP_DEASSERT },
 164         { .name = NULL, .value = -1 }
 165 };
 166
 167 static const Jim_Nvp nvp_error_target[] = {
 168         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 169         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 170         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 171         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 172         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 173         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 174         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 175         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 176         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 177         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 178         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 179         { .value = -1, .name = NULL }
 180 };
 181
 182 static const char *target_strerror_safe(int err)
 183 {
 184         const Jim_Nvp *n;
 185
 186         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 187         if (n->name == NULL)
 188                 return "unknown";
 189         else
 190                 return n->name;
 191 }
 192
 193 static const Jim_Nvp nvp_target_event[] = {
 194
 195         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 196         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 197         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 198         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 199         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 200
 201         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 202         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 203
 204         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 205         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 206         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 207         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 208         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 209         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 210         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 211         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 212
 213         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 214         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 215
 216         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 217         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 218
 219         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 220         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 221
 222         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 223         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 224
 225         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 226         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 227
 228         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 229
 230         { .name = NULL, .value = -1 }
 231 };
 232
 233 static const Jim_Nvp nvp_target_state[] = {
 234         { .name = "unknown", .value = TARGET_UNKNOWN },
 235         { .name = "running", .value = TARGET_RUNNING },
 236         { .name = "halted",  .value = TARGET_HALTED },
 237         { .name = "reset",   .value = TARGET_RESET },
 238         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 239         { .name = NULL, .value = -1 },
 240 };
 241
 242 static const Jim_Nvp nvp_target_debug_reason[] = {
 243         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 244         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 245         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 246         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 247         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 248         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 249         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 250         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 251         { .name = NULL, .value = -1 },
 252 };
 253
 254 static const Jim_Nvp nvp_target_endian[] = {
 255         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 256         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 257         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 258         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 259         { .name = NULL,     .value = -1 },
 260 };
 261
 262 static const Jim_Nvp nvp_reset_modes[] = {
 263         { .name = "unknown", .value = RESET_UNKNOWN },
 264         { .name = "run"    , .value = RESET_RUN },
 265         { .name = "halt"   , .value = RESET_HALT },
 266         { .name = "init"   , .value = RESET_INIT },
 267         { .name = NULL     , .value = -1 },
 268 };
 269
 270 const char *debug_reason_name(struct target *t)
 271 {
 272         const char *cp;
 273
 274         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 275                         t->debug_reason)->name;
 276         if (!cp) {
 277                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 278                 cp = "(*BUG*unknown*BUG*)";
 279         }
 280         return cp;
 281 }
 282
 283 const char *target_state_name(struct target *t)
 284 {
 285         const char *cp;
 286         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 287         if (!cp) {
 288                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 289                 cp = "(*BUG*unknown*BUG*)";
 290         }
 291
 292         if (!target_was_examined(t) && t->defer_examine)
 293                 cp = "examine deferred";
 294
 295         return cp;
 296 }
 297
 298 const char *target_event_name(enum target_event event)
 299 {
 300         const char *cp;
 301         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 302         if (!cp) {
 303                 LOG_ERROR("Invalid target event: %d", (int)(event));
 304                 cp = "(*BUG*unknown*BUG*)";
 305         }
 306         return cp;
 307 }
 308
 309 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 310 {
 311         const char *cp;
 312         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 313         if (!cp) {
 314                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 315                 cp = "(*BUG*unknown*BUG*)";
 316         }
 317         return cp;
 318 }
 319
 320 /* determine the number of the new target */
 321 static int new_target_number(void)
 322 {
 323         struct target *t;
 324         int x;
 325
 326         /* number is 0 based */
 327         x = -1;
 328         t = all_targets;
 329         while (t) {
 330                 if (x < t->target_number)
 331                         x = t->target_number;
 332                 t = t->next;
 333         }
 334         return x + 1;
 335 }
 336
 337 /* read a uint64_t from a buffer in target memory endianness */
 338 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 339 {
 340         if (target->endianness == TARGET_LITTLE_ENDIAN)
 341                 return le_to_h_u64(buffer);
 342         else
 343                 return be_to_h_u64(buffer);
 344 }
 345
 346 /* read a uint32_t from a buffer in target memory endianness */
 347 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 348 {
 349         if (target->endianness == TARGET_LITTLE_ENDIAN)
 350                 return le_to_h_u32(buffer);
 351         else
 352                 return be_to_h_u32(buffer);
 353 }
 354
 355 /* read a uint24_t from a buffer in target memory endianness */
 356 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 357 {
 358         if (target->endianness == TARGET_LITTLE_ENDIAN)
 359                 return le_to_h_u24(buffer);
 360         else
 361                 return be_to_h_u24(buffer);
 362 }
 363
 364 /* read a uint16_t from a buffer in target memory endianness */
 365 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 366 {
 367         if (target->endianness == TARGET_LITTLE_ENDIAN)
 368                 return le_to_h_u16(buffer);
 369         else
 370                 return be_to_h_u16(buffer);
 371 }
 372
 373 /* read a uint8_t from a buffer in target memory endianness */
 374 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 375 {
 376         return *buffer & 0x0ff;
 377 }
 378
 379 /* write a uint64_t to a buffer in target memory endianness */
 380 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 381 {
 382         if (target->endianness == TARGET_LITTLE_ENDIAN)
 383                 h_u64_to_le(buffer, value);
 384         else
 385                 h_u64_to_be(buffer, value);
 386 }
 387
 388 /* write a uint32_t to a buffer in target memory endianness */
 389 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 390 {
 391         if (target->endianness == TARGET_LITTLE_ENDIAN)
 392                 h_u32_to_le(buffer, value);
 393         else
 394                 h_u32_to_be(buffer, value);
 395 }
 396
 397 /* write a uint24_t to a buffer in target memory endianness */
 398 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 399 {
 400         if (target->endianness == TARGET_LITTLE_ENDIAN)
 401                 h_u24_to_le(buffer, value);
 402         else
 403                 h_u24_to_be(buffer, value);
 404 }
 405
 406 /* write a uint16_t to a buffer in target memory endianness */
 407 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 408 {
 409         if (target->endianness == TARGET_LITTLE_ENDIAN)
 410                 h_u16_to_le(buffer, value);
 411         else
 412                 h_u16_to_be(buffer, value);
 413 }
 414
 415 /* write a uint8_t to a buffer in target memory endianness */
 416 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 417 {
 418         *buffer = value;
 419 }
 420
 421 /* write a uint64_t array to a buffer in target memory endianness */
 422 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 423 {
 424         uint32_t i;
 425         for (i = 0; i < count; i++)
 426                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 427 }
 428
 429 /* write a uint32_t array to a buffer in target memory endianness */
 430 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 431 {
 432         uint32_t i;
 433         for (i = 0; i < count; i++)
 434                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 435 }
 436
 437 /* write a uint16_t array to a buffer in target memory endianness */
 438 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 439 {
 440         uint32_t i;
 441         for (i = 0; i < count; i++)
 442                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 443 }
 444
 445 /* write a uint64_t array to a buffer in target memory endianness */
 446 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 447 {
 448         uint32_t i;
 449         for (i = 0; i < count; i++)
 450                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 451 }
 452
 453 /* write a uint32_t array to a buffer in target memory endianness */
 454 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 455 {
 456         uint32_t i;
 457         for (i = 0; i < count; i++)
 458                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 459 }
 460
 461 /* write a uint16_t array to a buffer in target memory endianness */
 462 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 463 {
 464         uint32_t i;
 465         for (i = 0; i < count; i++)
 466                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 467 }
 468
 469 /* return a pointer to a configured target; id is name or number */
 470 struct target *get_target(const char *id)
 471 {
 472         struct target *target;
 473
 474         /* try as tcltarget name */
 475         for (target = all_targets; target; target = target->next) {
 476                 if (target_name(target) == NULL)
 477                         continue;
 478                 if (strcmp(id, target_name(target)) == 0)
 479                         return target;
 480         }
 481
 482         /* It's OK to remove this fallback sometime after August 2010 or so */
 483
 484         /* no match, try as number */
 485         unsigned num;
 486         if (parse_uint(id, &num) != ERROR_OK)
 487                 return NULL;
 488
 489         for (target = all_targets; target; target = target->next) {
 490                 if (target->target_number == (int)num) {
 491                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 492                                         target_name(target), num);
 493                         return target;
 494                 }
 495         }
 496
 497         return NULL;
 498 }
 499
 500 /* returns a pointer to the n-th configured target */
 501 struct target *get_target_by_num(int num)
 502 {
 503         struct target *target = all_targets;
 504
 505         while (target) {
 506                 if (target->target_number == num)
 507                         return target;
 508                 target = target->next;
 509         }
 510
 511         return NULL;
 512 }
 513
 514 struct target *get_current_target(struct command_context *cmd_ctx)
 515 {
 516         struct target *target = cmd_ctx->current_target_override
 517                 ? cmd_ctx->current_target_override
 518                 : cmd_ctx->current_target;
 519
 520         if (target == NULL) {
 521                 LOG_ERROR("BUG: current_target out of bounds");
 522                 exit(-1);
 523         }
 524
 525         return target;
 526 }
 527
 528 int target_poll(struct target *target)
 529 {
 530         int retval;
 531
 532         /* We can't poll until after examine */
 533         if (!target_was_examined(target)) {
 534                 /* Fail silently lest we pollute the log */
 535                 return ERROR_FAIL;
 536         }
 537
 538         retval = target->type->poll(target);
 539         if (retval != ERROR_OK)
 540                 return retval;
 541
 542         if (target->halt_issued) {
 543                 if (target->state == TARGET_HALTED)
 544                         target->halt_issued = false;
 545                 else {
 546                         int64_t t = timeval_ms() - target->halt_issued_time;
 547                         if (t > DEFAULT_HALT_TIMEOUT) {
 548                                 target->halt_issued = false;
 549                                 LOG_INFO("Halt timed out, wake up GDB.");
 550                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 551                         }
 552                 }
 553         }
 554
 555         return ERROR_OK;
 556 }
 557
 558 int target_halt(struct target *target)
 559 {
 560         int retval;
 561         /* We can't poll until after examine */
 562         if (!target_was_examined(target)) {
 563                 LOG_ERROR("Target not examined yet");
 564                 return ERROR_FAIL;
 565         }
 566
 567         retval = target->type->halt(target);
 568         if (retval != ERROR_OK)
 569                 return retval;
 570
 571         target->halt_issued = true;
 572         target->halt_issued_time = timeval_ms();
 573
 574         return ERROR_OK;
 575 }
 576
 577 /**
 578  * Make the target (re)start executing using its saved execution
 579  * context (possibly with some modifications).
 580  *
 581  * @param target Which target should start executing.
 582  * @param current True to use the target's saved program counter instead
 583  *      of the address parameter
 584  * @param address Optionally used as the program counter.
 585  * @param handle_breakpoints True iff breakpoints at the resumption PC
 586  *      should be skipped.  (For example, maybe execution was stopped by
 587  *      such a breakpoint, in which case it would be counterprodutive to
 588  *      let it re-trigger.
 589  * @param debug_execution False if all working areas allocated by OpenOCD
 590  *      should be released and/or restored to their original contents.
 591  *      (This would for example be true to run some downloaded "helper"
 592  *      algorithm code, which resides in one such working buffer and uses
 593  *      another for data storage.)
 594  *
 595  * @todo Resolve the ambiguity about what the "debug_execution" flag
 596  * signifies.  For example, Target implementations don't agree on how
 597  * it relates to invalidation of the register cache, or to whether
 598  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 599  * to enable breakpoints when running downloaded "helper" algorithms
 600  * (debug_execution true), since the breakpoints would be set to match
 601  * target firmware being debugged, not the helper algorithm.... and
 602  * enabling them could cause such helpers to malfunction (for example,
 603  * by overwriting data with a breakpoint instruction.  On the other
 604  * hand the infrastructure for running such helpers might use this
 605  * procedure but rely on hardware breakpoint to detect termination.)
 606  */
 607 int target_resume(struct target *target, int current, target_addr_t address,
 608                 int handle_breakpoints, int debug_execution)
 609 {
 610         int retval;
 611
 612         /* We can't poll until after examine */
 613         if (!target_was_examined(target)) {
 614                 LOG_ERROR("Target not examined yet");
 615                 return ERROR_FAIL;
 616         }
 617
 618         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 619
 620         /* note that resume *must* be asynchronous. The CPU can halt before
 621          * we poll. The CPU can even halt at the current PC as a result of
 622          * a software breakpoint being inserted by (a bug?) the application.
 623          */
 624         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 625         if (retval != ERROR_OK)
 626                 return retval;
 627
 628         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 629
 630         return retval;
 631 }
 632
 633 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 634 {
 635         char buf[100];
 636         int retval;
 637         Jim_Nvp *n;
 638         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 639         if (n->name == NULL) {
 640                 LOG_ERROR("invalid reset mode");
 641                 return ERROR_FAIL;
 642         }
 643
 644         struct target *target;
 645         for (target = all_targets; target; target = target->next)
 646                 target_call_reset_callbacks(target, reset_mode);
 647
 648         /* disable polling during reset to make reset event scripts
 649          * more predictable, i.e. dr/irscan & pathmove in events will
 650          * not have JTAG operations injected into the middle of a sequence.
 651          */
 652         bool save_poll = jtag_poll_get_enabled();
 653
 654         jtag_poll_set_enabled(false);
 655
 656         sprintf(buf, "ocd_process_reset %s", n->name);
 657         retval = Jim_Eval(cmd_ctx->interp, buf);
 658
 659         jtag_poll_set_enabled(save_poll);
 660
 661         if (retval != JIM_OK) {
 662                 Jim_MakeErrorMessage(cmd_ctx->interp);
 663                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 664                 return ERROR_FAIL;
 665         }
 666
 667         /* We want any events to be processed before the prompt */
 668         retval = target_call_timer_callbacks_now();
 669
 670         for (target = all_targets; target; target = target->next) {
 671                 target->type->check_reset(target);
 672                 target->running_alg = false;
 673         }
 674
 675         return retval;
 676 }
 677
 678 static int identity_virt2phys(struct target *target,
 679                 target_addr_t virtual, target_addr_t *physical)
 680 {
 681         *physical = virtual;
 682         return ERROR_OK;
 683 }
 684
 685 static int no_mmu(struct target *target, int *enabled)
 686 {
 687         *enabled = 0;
 688         return ERROR_OK;
 689 }
 690
 691 static int default_examine(struct target *target)
 692 {
 693         target_set_examined(target);
 694         return ERROR_OK;
 695 }
 696
 697 /* no check by default */
 698 static int default_check_reset(struct target *target)
 699 {
 700         return ERROR_OK;
 701 }
 702
 703 int target_examine_one(struct target *target)
 704 {
 705         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 706
 707         int retval = target->type->examine(target);
 708         if (retval != ERROR_OK)
 709                 return retval;
 710
 711         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 712
 713         return ERROR_OK;
 714 }
 715
 716 static int jtag_enable_callback(enum jtag_event event, void *priv)
 717 {
 718         struct target *target = priv;
 719
 720         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 721                 return ERROR_OK;
 722
 723         jtag_unregister_event_callback(jtag_enable_callback, target);
 724
 725         return target_examine_one(target);
 726 }
 727
 728 /* Targets that correctly implement init + examine, i.e.
 729  * no communication with target during init:
 730  *
 731  * XScale
 732  */
 733 int target_examine(void)
 734 {
 735         int retval = ERROR_OK;
 736         struct target *target;
 737
 738         for (target = all_targets; target; target = target->next) {
 739                 /* defer examination, but don't skip it */
 740                 if (!target->tap->enabled) {
 741                         jtag_register_event_callback(jtag_enable_callback,
 742                                         target);
 743                         continue;
 744                 }
 745
 746                 if (target->defer_examine)
 747                         continue;
 748
 749                 retval = target_examine_one(target);
 750                 if (retval != ERROR_OK)
 751                         return retval;
 752         }
 753         return retval;
 754 }
 755
 756 const char *target_type_name(struct target *target)
 757 {
 758         return target->type->name;
 759 }
 760
 761 static int target_soft_reset_halt(struct target *target)
 762 {
 763         if (!target_was_examined(target)) {
 764                 LOG_ERROR("Target not examined yet");
 765                 return ERROR_FAIL;
 766         }
 767         if (!target->type->soft_reset_halt) {
 768                 LOG_ERROR("Target %s does not support soft_reset_halt",
 769                                 target_name(target));
 770                 return ERROR_FAIL;
 771         }
 772         return target->type->soft_reset_halt(target);
 773 }
 774
 775 /**
 776  * Downloads a target-specific native code algorithm to the target,
 777  * and executes it.  * Note that some targets may need to set up, enable,
 778  * and tear down a breakpoint (hard or * soft) to detect algorithm
 779  * termination, while others may support  lower overhead schemes where
 780  * soft breakpoints embedded in the algorithm automatically terminate the
 781  * algorithm.
 782  *
 783  * @param target used to run the algorithm
 784  * @param arch_info target-specific description of the algorithm.
 785  */
 786 int target_run_algorithm(struct target *target,
 787                 int num_mem_params, struct mem_param *mem_params,
 788                 int num_reg_params, struct reg_param *reg_param,
 789                 uint32_t entry_point, uint32_t exit_point,
 790                 int timeout_ms, void *arch_info)
 791 {
 792         int retval = ERROR_FAIL;
 793
 794         if (!target_was_examined(target)) {
 795                 LOG_ERROR("Target not examined yet");
 796                 goto done;
 797         }
 798         if (!target->type->run_algorithm) {
 799                 LOG_ERROR("Target type '%s' does not support %s",
 800                                 target_type_name(target), __func__);
 801                 goto done;
 802         }
 803
 804         target->running_alg = true;
 805         retval = target->type->run_algorithm(target,
 806                         num_mem_params, mem_params,
 807                         num_reg_params, reg_param,
 808                         entry_point, exit_point, timeout_ms, arch_info);
 809         target->running_alg = false;
 810
 811 done:
 812         return retval;
 813 }
 814
 815 /**
 816  * Executes a target-specific native code algorithm and leaves it running.
 817  *
 818  * @param target used to run the algorithm
 819  * @param arch_info target-specific description of the algorithm.
 820  */
 821 int target_start_algorithm(struct target *target,
 822                 int num_mem_params, struct mem_param *mem_params,
 823                 int num_reg_params, struct reg_param *reg_params,
 824                 uint32_t entry_point, uint32_t exit_point,
 825                 void *arch_info)
 826 {
 827         int retval = ERROR_FAIL;
 828
 829         if (!target_was_examined(target)) {
 830                 LOG_ERROR("Target not examined yet");
 831                 goto done;
 832         }
 833         if (!target->type->start_algorithm) {
 834                 LOG_ERROR("Target type '%s' does not support %s",
 835                                 target_type_name(target), __func__);
 836                 goto done;
 837         }
 838         if (target->running_alg) {
 839                 LOG_ERROR("Target is already running an algorithm");
 840                 goto done;
 841         }
 842
 843         target->running_alg = true;
 844         retval = target->type->start_algorithm(target,
 845                         num_mem_params, mem_params,
 846                         num_reg_params, reg_params,
 847                         entry_point, exit_point, arch_info);
 848
 849 done:
 850         return retval;
 851 }
 852
 853 /**
 854  * Waits for an algorithm started with target_start_algorithm() to complete.
 855  *
 856  * @param target used to run the algorithm
 857  * @param arch_info target-specific description of the algorithm.
 858  */
 859 int target_wait_algorithm(struct target *target,
 860                 int num_mem_params, struct mem_param *mem_params,
 861                 int num_reg_params, struct reg_param *reg_params,
 862                 uint32_t exit_point, int timeout_ms,
 863                 void *arch_info)
 864 {
 865         int retval = ERROR_FAIL;
 866
 867         if (!target->type->wait_algorithm) {
 868                 LOG_ERROR("Target type '%s' does not support %s",
 869                                 target_type_name(target), __func__);
 870                 goto done;
 871         }
 872         if (!target->running_alg) {
 873                 LOG_ERROR("Target is not running an algorithm");
 874                 goto done;
 875         }
 876
 877         retval = target->type->wait_algorithm(target,
 878                         num_mem_params, mem_params,
 879                         num_reg_params, reg_params,
 880                         exit_point, timeout_ms, arch_info);
 881         if (retval != ERROR_TARGET_TIMEOUT)
 882                 target->running_alg = false;
 883
 884 done:
 885         return retval;
 886 }
 887
 888 /**
 889  * Streams data to a circular buffer on target intended for consumption by code
 890  * running asynchronously on target.
 891  *
 892  * This is intended for applications where target-specific native code runs
 893  * on the target, receives data from the circular buffer, does something with
 894  * it (most likely writing it to a flash memory), and advances the circular
 895  * buffer pointer.
 896  *
 897  * This assumes that the helper algorithm has already been loaded to the target,
 898  * but has not been started yet. Given memory and register parameters are passed
 899  * to the algorithm.
 900  *
 901  * The buffer is defined by (buffer_start, buffer_size) arguments and has the
 902  * following format:
 903  *
 904  *     [buffer_start + 0, buffer_start + 4):
 905  *         Write Pointer address (aka head). Written and updated by this
 906  *         routine when new data is written to the circular buffer.
 907  *     [buffer_start + 4, buffer_start + 8):
 908  *         Read Pointer address (aka tail). Updated by code running on the
 909  *         target after it consumes data.
 910  *     [buffer_start + 8, buffer_start + buffer_size):
 911  *         Circular buffer contents.
 912  *
 913  * See contrib/loaders/flash/stm32f1x.S for an example.
 914  *
 915  * @param target used to run the algorithm
 916  * @param buffer address on the host where data to be sent is located
 917  * @param count number of blocks to send
 918  * @param block_size size in bytes of each block
 919  * @param num_mem_params count of memory-based params to pass to algorithm
 920  * @param mem_params memory-based params to pass to algorithm
 921  * @param num_reg_params count of register-based params to pass to algorithm
 922  * @param reg_params memory-based params to pass to algorithm
 923  * @param buffer_start address on the target of the circular buffer structure
 924  * @param buffer_size size of the circular buffer structure
 925  * @param entry_point address on the target to execute to start the algorithm
 926  * @param exit_point address at which to set a breakpoint to catch the
 927  *     end of the algorithm; can be 0 if target triggers a breakpoint itself
 928  */
 929
 930 int target_run_flash_async_algorithm(struct target *target,
 931                 const uint8_t *buffer, uint32_t count, int block_size,
 932                 int num_mem_params, struct mem_param *mem_params,
 933                 int num_reg_params, struct reg_param *reg_params,
 934                 uint32_t buffer_start, uint32_t buffer_size,
 935                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 936 {
 937         int retval;
 938         int timeout = 0;
 939
 940         const uint8_t *buffer_orig = buffer;
 941
 942         /* Set up working area. First word is write pointer, second word is read pointer,
 943          * rest is fifo data area. */
 944         uint32_t wp_addr = buffer_start;
 945         uint32_t rp_addr = buffer_start + 4;
 946         uint32_t fifo_start_addr = buffer_start + 8;
 947         uint32_t fifo_end_addr = buffer_start + buffer_size;
 948
 949         uint32_t wp = fifo_start_addr;
 950         uint32_t rp = fifo_start_addr;
 951
 952         /* validate block_size is 2^n */
 953         assert(!block_size || !(block_size & (block_size - 1)));
 954
 955         retval = target_write_u32(target, wp_addr, wp);
 956         if (retval != ERROR_OK)
 957                 return retval;
 958         retval = target_write_u32(target, rp_addr, rp);
 959         if (retval != ERROR_OK)
 960                 return retval;
 961
 962         /* Start up algorithm on target and let it idle while writing the first chunk */
 963         retval = target_start_algorithm(target, num_mem_params, mem_params,
 964                         num_reg_params, reg_params,
 965                         entry_point,
 966                         exit_point,
 967                         arch_info);
 968
 969         if (retval != ERROR_OK) {
 970                 LOG_ERROR("error starting target flash write algorithm");
 971                 return retval;
 972         }
 973
 974         while (count > 0) {
 975
 976                 retval = target_read_u32(target, rp_addr, &rp);
 977                 if (retval != ERROR_OK) {
 978                         LOG_ERROR("failed to get read pointer");
 979                         break;
 980                 }
 981
 982                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 983                         (size_t) (buffer - buffer_orig), count, wp, rp);
 984
 985                 if (rp == 0) {
 986                         LOG_ERROR("flash write algorithm aborted by target");
 987                         retval = ERROR_FLASH_OPERATION_FAILED;
 988                         break;
 989                 }
 990
 991                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 992                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 993                         break;
 994                 }
 995
 996                 /* Count the number of bytes available in the fifo without
 997                  * crossing the wrap around. Make sure to not fill it completely,
 998                  * because that would make wp == rp and that's the empty condition. */
 999                 uint32_t thisrun_bytes;
1000                 if (rp > wp)
1001                         thisrun_bytes = rp - wp - block_size;
1002                 else if (rp > fifo_start_addr)
1003                         thisrun_bytes = fifo_end_addr - wp;
1004                 else
1005                         thisrun_bytes = fifo_end_addr - wp - block_size;
1006
1007                 if (thisrun_bytes == 0) {
1008                         /* Throttle polling a bit if transfer is (much) faster than flash
1009                          * programming. The exact delay shouldn't matter as long as it's
1010                          * less than buffer size / flash speed. This is very unlikely to
1011                          * run when using high latency connections such as USB. */
1012                         alive_sleep(10);
1013
1014                         /* to stop an infinite loop on some targets check and increment a timeout
1015                          * this issue was observed on a stellaris using the new ICDI interface */
1016                         if (timeout++ >= 500) {
1017                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1018                                 return ERROR_FLASH_OPERATION_FAILED;
1019                         }
1020                         continue;
1021                 }
1022
1023                 /* reset our timeout */
1024                 timeout = 0;
1025
1026                 /* Limit to the amount of data we actually want to write */
1027                 if (thisrun_bytes > count * block_size)
1028                         thisrun_bytes = count * block_size;
1029
1030                 /* Write data to fifo */
1031                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1032                 if (retval != ERROR_OK)
1033                         break;
1034
1035                 /* Update counters and wrap write pointer */
1036                 buffer += thisrun_bytes;
1037                 count -= thisrun_bytes / block_size;
1038                 wp += thisrun_bytes;
1039                 if (wp >= fifo_end_addr)
1040                         wp = fifo_start_addr;
1041
1042                 /* Store updated write pointer to target */
1043                 retval = target_write_u32(target, wp_addr, wp);
1044                 if (retval != ERROR_OK)
1045                         break;
1046         }
1047
1048         if (retval != ERROR_OK) {
1049                 /* abort flash write algorithm on target */
1050                 target_write_u32(target, wp_addr, 0);
1051         }
1052
1053         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1054                         num_reg_params, reg_params,
1055                         exit_point,
1056                         10000,
1057                         arch_info);
1058
1059         if (retval2 != ERROR_OK) {
1060                 LOG_ERROR("error waiting for target flash write algorithm");
1061                 retval = retval2;
1062         }
1063
1064         if (retval == ERROR_OK) {
1065                 /* check if algorithm set rp = 0 after fifo writer loop finished */
1066                 retval = target_read_u32(target, rp_addr, &rp);
1067                 if (retval == ERROR_OK && rp == 0) {
1068                         LOG_ERROR("flash write algorithm aborted by target");
1069                         retval = ERROR_FLASH_OPERATION_FAILED;
1070                 }
1071         }
1072
1073         return retval;
1074 }
1075
1076 int target_read_memory(struct target *target,
1077                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1078 {
1079         if (!target_was_examined(target)) {
1080                 LOG_ERROR("Target not examined yet");
1081                 return ERROR_FAIL;
1082         }
1083         if (!target->type->read_memory) {
1084                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1085                 return ERROR_FAIL;
1086         }
1087         return target->type->read_memory(target, address, size, count, buffer);
1088 }
1089
1090 int target_read_phys_memory(struct target *target,
1091                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1092 {
1093         if (!target_was_examined(target)) {
1094                 LOG_ERROR("Target not examined yet");
1095                 return ERROR_FAIL;
1096         }
1097         if (!target->type->read_phys_memory) {
1098                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1099                 return ERROR_FAIL;
1100         }
1101         return target->type->read_phys_memory(target, address, size, count, buffer);
1102 }
1103
1104 int target_write_memory(struct target *target,
1105                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1106 {
1107         if (!target_was_examined(target)) {
1108                 LOG_ERROR("Target not examined yet");
1109                 return ERROR_FAIL;
1110         }
1111         if (!target->type->write_memory) {
1112                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1113                 return ERROR_FAIL;
1114         }
1115         return target->type->write_memory(target, address, size, count, buffer);
1116 }
1117
1118 int target_write_phys_memory(struct target *target,
1119                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1120 {
1121         if (!target_was_examined(target)) {
1122                 LOG_ERROR("Target not examined yet");
1123                 return ERROR_FAIL;
1124         }
1125         if (!target->type->write_phys_memory) {
1126                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1127                 return ERROR_FAIL;
1128         }
1129         return target->type->write_phys_memory(target, address, size, count, buffer);
1130 }
1131
1132 int target_add_breakpoint(struct target *target,
1133                 struct breakpoint *breakpoint)
1134 {
1135         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1136                 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1137                 return ERROR_TARGET_NOT_HALTED;
1138         }
1139         return target->type->add_breakpoint(target, breakpoint);
1140 }
1141
1142 int target_add_context_breakpoint(struct target *target,
1143                 struct breakpoint *breakpoint)
1144 {
1145         if (target->state != TARGET_HALTED) {
1146                 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1147                 return ERROR_TARGET_NOT_HALTED;
1148         }
1149         return target->type->add_context_breakpoint(target, breakpoint);
1150 }
1151
1152 int target_add_hybrid_breakpoint(struct target *target,
1153                 struct breakpoint *breakpoint)
1154 {
1155         if (target->state != TARGET_HALTED) {
1156                 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1157                 return ERROR_TARGET_NOT_HALTED;
1158         }
1159         return target->type->add_hybrid_breakpoint(target, breakpoint);
1160 }
1161
1162 int target_remove_breakpoint(struct target *target,
1163                 struct breakpoint *breakpoint)
1164 {
1165         return target->type->remove_breakpoint(target, breakpoint);
1166 }
1167
1168 int target_add_watchpoint(struct target *target,
1169                 struct watchpoint *watchpoint)
1170 {
1171         if (target->state != TARGET_HALTED) {
1172                 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1173                 return ERROR_TARGET_NOT_HALTED;
1174         }
1175         return target->type->add_watchpoint(target, watchpoint);
1176 }
1177 int target_remove_watchpoint(struct target *target,
1178                 struct watchpoint *watchpoint)
1179 {
1180         return target->type->remove_watchpoint(target, watchpoint);
1181 }
1182 int target_hit_watchpoint(struct target *target,
1183                 struct watchpoint **hit_watchpoint)
1184 {
1185         if (target->state != TARGET_HALTED) {
1186                 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1187                 return ERROR_TARGET_NOT_HALTED;
1188         }
1189
1190         if (target->type->hit_watchpoint == NULL) {
1191                 /* For backward compatible, if hit_watchpoint is not implemented,
1192                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1193                  * information. */
1194                 return ERROR_FAIL;
1195         }
1196
1197         return target->type->hit_watchpoint(target, hit_watchpoint);
1198 }
1199
1200 int target_get_gdb_reg_list(struct target *target,
1201                 struct reg **reg_list[], int *reg_list_size,
1202                 enum target_register_class reg_class)
1203 {
1204         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1205 }
1206 int target_step(struct target *target,
1207                 int current, target_addr_t address, int handle_breakpoints)
1208 {
1209         return target->type->step(target, current, address, handle_breakpoints);
1210 }
1211
1212 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1213 {
1214         if (target->state != TARGET_HALTED) {
1215                 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1216                 return ERROR_TARGET_NOT_HALTED;
1217         }
1218         return target->type->get_gdb_fileio_info(target, fileio_info);
1219 }
1220
1221 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1222 {
1223         if (target->state != TARGET_HALTED) {
1224                 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1225                 return ERROR_TARGET_NOT_HALTED;
1226         }
1227         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1228 }
1229
1230 int target_profiling(struct target *target, uint32_t *samples,
1231                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1232 {
1233         if (target->state != TARGET_HALTED) {
1234                 LOG_WARNING("target %s is not halted (profiling)", target->cmd_name);
1235                 return ERROR_TARGET_NOT_HALTED;
1236         }
1237         return target->type->profiling(target, samples, max_num_samples,
1238                         num_samples, seconds);
1239 }
1240
1241 /**
1242  * Reset the @c examined flag for the given target.
1243  * Pure paranoia -- targets are zeroed on allocation.
1244  */
1245 static void target_reset_examined(struct target *target)
1246 {
1247         target->examined = false;
1248 }
1249
1250 static int handle_target(void *priv);
1251
1252 static int target_init_one(struct command_context *cmd_ctx,
1253                 struct target *target)
1254 {
1255         target_reset_examined(target);
1256
1257         struct target_type *type = target->type;
1258         if (type->examine == NULL)
1259                 type->examine = default_examine;
1260
1261         if (type->check_reset == NULL)
1262                 type->check_reset = default_check_reset;
1263
1264         assert(type->init_target != NULL);
1265
1266         int retval = type->init_target(cmd_ctx, target);
1267         if (ERROR_OK != retval) {
1268                 LOG_ERROR("target '%s' init failed", target_name(target));
1269                 return retval;
1270         }
1271
1272         /* Sanity-check MMU support ... stub in what we must, to help
1273          * implement it in stages, but warn if we need to do so.
1274          */
1275         if (type->mmu) {
1276                 if (type->virt2phys == NULL) {
1277                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1278                         type->virt2phys = identity_virt2phys;
1279                 }
1280         } else {
1281                 /* Make sure no-MMU targets all behave the same:  make no
1282                  * distinction between physical and virtual addresses, and
1283                  * ensure that virt2phys() is always an identity mapping.
1284                  */
1285                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1286                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1287
1288                 type->mmu = no_mmu;
1289                 type->write_phys_memory = type->write_memory;
1290                 type->read_phys_memory = type->read_memory;
1291                 type->virt2phys = identity_virt2phys;
1292         }
1293
1294         if (target->type->read_buffer == NULL)
1295                 target->type->read_buffer = target_read_buffer_default;
1296
1297         if (target->type->write_buffer == NULL)
1298                 target->type->write_buffer = target_write_buffer_default;
1299
1300         if (target->type->get_gdb_fileio_info == NULL)
1301                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1302
1303         if (target->type->gdb_fileio_end == NULL)
1304                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1305
1306         if (target->type->profiling == NULL)
1307                 target->type->profiling = target_profiling_default;
1308
1309         return ERROR_OK;
1310 }
1311
1312 static int target_init(struct command_context *cmd_ctx)
1313 {
1314         struct target *target;
1315         int retval;
1316
1317         for (target = all_targets; target; target = target->next) {
1318                 retval = target_init_one(cmd_ctx, target);
1319                 if (ERROR_OK != retval)
1320                         return retval;
1321         }
1322
1323         if (!all_targets)
1324                 return ERROR_OK;
1325
1326         retval = target_register_user_commands(cmd_ctx);
1327         if (ERROR_OK != retval)
1328                 return retval;
1329
1330         retval = target_register_timer_callback(&handle_target,
1331                         polling_interval, 1, cmd_ctx->interp);
1332         if (ERROR_OK != retval)
1333                 return retval;
1334
1335         return ERROR_OK;
1336 }
1337
1338 COMMAND_HANDLER(handle_target_init_command)
1339 {
1340         int retval;
1341
1342         if (CMD_ARGC != 0)
1343                 return ERROR_COMMAND_SYNTAX_ERROR;
1344
1345         static bool target_initialized;
1346         if (target_initialized) {
1347                 LOG_INFO("'target init' has already been called");
1348                 return ERROR_OK;
1349         }
1350         target_initialized = true;
1351
1352         retval = command_run_line(CMD_CTX, "init_targets");
1353         if (ERROR_OK != retval)
1354                 return retval;
1355
1356         retval = command_run_line(CMD_CTX, "init_target_events");
1357         if (ERROR_OK != retval)
1358                 return retval;
1359
1360         retval = command_run_line(CMD_CTX, "init_board");
1361         if (ERROR_OK != retval)
1362                 return retval;
1363
1364         LOG_DEBUG("Initializing targets...");
1365         return target_init(CMD_CTX);
1366 }
1367
1368 int target_register_event_callback(int (*callback)(struct target *target,
1369                 enum target_event event, void *priv), void *priv)
1370 {
1371         struct target_event_callback **callbacks_p = &target_event_callbacks;
1372
1373         if (callback == NULL)
1374                 return ERROR_COMMAND_SYNTAX_ERROR;
1375
1376         if (*callbacks_p) {
1377                 while ((*callbacks_p)->next)
1378                         callbacks_p = &((*callbacks_p)->next);
1379                 callbacks_p = &((*callbacks_p)->next);
1380         }
1381
1382         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1383         (*callbacks_p)->callback = callback;
1384         (*callbacks_p)->priv = priv;
1385         (*callbacks_p)->next = NULL;
1386
1387         return ERROR_OK;
1388 }
1389
1390 int target_register_reset_callback(int (*callback)(struct target *target,
1391                 enum target_reset_mode reset_mode, void *priv), void *priv)
1392 {
1393         struct target_reset_callback *entry;
1394
1395         if (callback == NULL)
1396                 return ERROR_COMMAND_SYNTAX_ERROR;
1397
1398         entry = malloc(sizeof(struct target_reset_callback));
1399         if (entry == NULL) {
1400                 LOG_ERROR("error allocating buffer for reset callback entry");
1401                 return ERROR_COMMAND_SYNTAX_ERROR;
1402         }
1403
1404         entry->callback = callback;
1405         entry->priv = priv;
1406         list_add(&entry->list, &target_reset_callback_list);
1407
1408
1409         return ERROR_OK;
1410 }
1411
1412 int target_register_trace_callback(int (*callback)(struct target *target,
1413                 size_t len, uint8_t *data, void *priv), void *priv)
1414 {
1415         struct target_trace_callback *entry;
1416
1417         if (callback == NULL)
1418                 return ERROR_COMMAND_SYNTAX_ERROR;
1419
1420         entry = malloc(sizeof(struct target_trace_callback));
1421         if (entry == NULL) {
1422                 LOG_ERROR("error allocating buffer for trace callback entry");
1423                 return ERROR_COMMAND_SYNTAX_ERROR;
1424         }
1425
1426         entry->callback = callback;
1427         entry->priv = priv;
1428         list_add(&entry->list, &target_trace_callback_list);
1429
1430
1431         return ERROR_OK;
1432 }
1433
1434 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1435 {
1436         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1437
1438         if (callback == NULL)
1439                 return ERROR_COMMAND_SYNTAX_ERROR;
1440
1441         if (*callbacks_p) {
1442                 while ((*callbacks_p)->next)
1443                         callbacks_p = &((*callbacks_p)->next);
1444                 callbacks_p = &((*callbacks_p)->next);
1445         }
1446
1447         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1448         (*callbacks_p)->callback = callback;
1449         (*callbacks_p)->periodic = periodic;
1450         (*callbacks_p)->time_ms = time_ms;
1451         (*callbacks_p)->removed = false;
1452
1453         gettimeofday(&(*callbacks_p)->when, NULL);
1454         timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1455
1456         (*callbacks_p)->priv = priv;
1457         (*callbacks_p)->next = NULL;
1458
1459         return ERROR_OK;
1460 }
1461
1462 int target_unregister_event_callback(int (*callback)(struct target *target,
1463                 enum target_event event, void *priv), void *priv)
1464 {
1465         struct target_event_callback **p = &target_event_callbacks;
1466         struct target_event_callback *c = target_event_callbacks;
1467
1468         if (callback == NULL)
1469                 return ERROR_COMMAND_SYNTAX_ERROR;
1470
1471         while (c) {
1472                 struct target_event_callback *next = c->next;
1473                 if ((c->callback == callback) && (c->priv == priv)) {
1474                         *p = next;
1475                         free(c);
1476                         return ERROR_OK;
1477                 } else
1478                         p = &(c->next);
1479                 c = next;
1480         }
1481
1482         return ERROR_OK;
1483 }
1484
1485 int target_unregister_reset_callback(int (*callback)(struct target *target,
1486                 enum target_reset_mode reset_mode, void *priv), void *priv)
1487 {
1488         struct target_reset_callback *entry;
1489
1490         if (callback == NULL)
1491                 return ERROR_COMMAND_SYNTAX_ERROR;
1492
1493         list_for_each_entry(entry, &target_reset_callback_list, list) {
1494                 if (entry->callback == callback && entry->priv == priv) {
1495                         list_del(&entry->list);
1496                         free(entry);
1497                         break;
1498                 }
1499         }
1500
1501         return ERROR_OK;
1502 }
1503
1504 int target_unregister_trace_callback(int (*callback)(struct target *target,
1505                 size_t len, uint8_t *data, void *priv), void *priv)
1506 {
1507         struct target_trace_callback *entry;
1508
1509         if (callback == NULL)
1510                 return ERROR_COMMAND_SYNTAX_ERROR;
1511
1512         list_for_each_entry(entry, &target_trace_callback_list, list) {
1513                 if (entry->callback == callback && entry->priv == priv) {
1514                         list_del(&entry->list);
1515                         free(entry);
1516                         break;
1517                 }
1518         }
1519
1520         return ERROR_OK;
1521 }
1522
1523 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1524 {
1525         if (callback == NULL)
1526                 return ERROR_COMMAND_SYNTAX_ERROR;
1527
1528         for (struct target_timer_callback *c = target_timer_callbacks;
1529              c; c = c->next) {
1530                 if ((c->callback == callback) && (c->priv == priv)) {
1531                         c->removed = true;
1532                         return ERROR_OK;
1533                 }
1534         }
1535
1536         return ERROR_FAIL;
1537 }
1538
1539 int target_call_event_callbacks(struct target *target, enum target_event event)
1540 {
1541         struct target_event_callback *callback = target_event_callbacks;
1542         struct target_event_callback *next_callback;
1543
1544         if (event == TARGET_EVENT_HALTED) {
1545                 /* execute early halted first */
1546                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1547         }
1548
1549         LOG_DEBUG("target event %i (%s)", event,
1550                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1551
1552         target_handle_event(target, event);
1553
1554         while (callback) {
1555                 next_callback = callback->next;
1556                 callback->callback(target, event, callback->priv);
1557                 callback = next_callback;
1558         }
1559
1560         return ERROR_OK;
1561 }
1562
1563 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1564 {
1565         struct target_reset_callback *callback;
1566
1567         LOG_DEBUG("target reset %i (%s)", reset_mode,
1568                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1569
1570         list_for_each_entry(callback, &target_reset_callback_list, list)
1571                 callback->callback(target, reset_mode, callback->priv);
1572
1573         return ERROR_OK;
1574 }
1575
1576 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1577 {
1578         struct target_trace_callback *callback;
1579
1580         list_for_each_entry(callback, &target_trace_callback_list, list)
1581                 callback->callback(target, len, data, callback->priv);
1582
1583         return ERROR_OK;
1584 }
1585
1586 static int target_timer_callback_periodic_restart(
1587                 struct target_timer_callback *cb, struct timeval *now)
1588 {
1589         cb->when = *now;
1590         timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1591         return ERROR_OK;
1592 }
1593
1594 static int target_call_timer_callback(struct target_timer_callback *cb,
1595                 struct timeval *now)
1596 {
1597         cb->callback(cb->priv);
1598
1599         if (cb->periodic)
1600                 return target_timer_callback_periodic_restart(cb, now);
1601
1602         return target_unregister_timer_callback(cb->callback, cb->priv);
1603 }
1604
1605 static int target_call_timer_callbacks_check_time(int checktime)
1606 {
1607         static bool callback_processing;
1608
1609         /* Do not allow nesting */
1610         if (callback_processing)
1611                 return ERROR_OK;
1612
1613         callback_processing = true;
1614
1615         keep_alive();
1616
1617         struct timeval now;
1618         gettimeofday(&now, NULL);
1619
1620         /* Store an address of the place containing a pointer to the
1621          * next item; initially, that's a standalone "root of the
1622          * list" variable. */
1623         struct target_timer_callback **callback = &target_timer_callbacks;
1624         while (*callback) {
1625                 if ((*callback)->removed) {
1626                         struct target_timer_callback *p = *callback;
1627                         *callback = (*callback)->next;
1628                         free(p);
1629                         continue;
1630                 }
1631
1632                 bool call_it = (*callback)->callback &&
1633                         ((!checktime && (*callback)->periodic) ||
1634                          timeval_compare(&now, &(*callback)->when) >= 0);
1635
1636                 if (call_it)
1637                         target_call_timer_callback(*callback, &now);
1638
1639                 callback = &(*callback)->next;
1640         }
1641
1642         callback_processing = false;
1643         return ERROR_OK;
1644 }
1645
1646 int target_call_timer_callbacks(void)
1647 {
1648         return target_call_timer_callbacks_check_time(1);
1649 }
1650
1651 /* invoke periodic callbacks immediately */
1652 int target_call_timer_callbacks_now(void)
1653 {
1654         return target_call_timer_callbacks_check_time(0);
1655 }
1656
1657 /* Prints the working area layout for debug purposes */
1658 static void print_wa_layout(struct target *target)
1659 {
1660         struct working_area *c = target->working_areas;
1661
1662         while (c) {
1663                 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1664                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1665                         c->address, c->address + c->size - 1, c->size);
1666                 c = c->next;
1667         }
1668 }
1669
1670 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1671 static void target_split_working_area(struct working_area *area, uint32_t size)
1672 {
1673         assert(area->free); /* Shouldn't split an allocated area */
1674         assert(size <= area->size); /* Caller should guarantee this */
1675
1676         /* Split only if not already the right size */
1677         if (size < area->size) {
1678                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1679
1680                 if (new_wa == NULL)
1681                         return;
1682
1683                 new_wa->next = area->next;
1684                 new_wa->size = area->size - size;
1685                 new_wa->address = area->address + size;
1686                 new_wa->backup = NULL;
1687                 new_wa->user = NULL;
1688                 new_wa->free = true;
1689
1690                 area->next = new_wa;
1691                 area->size = size;
1692
1693                 /* If backup memory was allocated to this area, it has the wrong size
1694                  * now so free it and it will be reallocated if/when needed */
1695                 if (area->backup) {
1696                         free(area->backup);
1697                         area->backup = NULL;
1698                 }
1699         }
1700 }
1701
1702 /* Merge all adjacent free areas into one */
1703 static void target_merge_working_areas(struct target *target)
1704 {
1705         struct working_area *c = target->working_areas;
1706
1707         while (c && c->next) {
1708                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1709
1710                 /* Find two adjacent free areas */
1711                 if (c->free && c->next->free) {
1712                         /* Merge the last into the first */
1713                         c->size += c->next->size;
1714
1715                         /* Remove the last */
1716                         struct working_area *to_be_freed = c->next;
1717                         c->next = c->next->next;
1718                         if (to_be_freed->backup)
1719                                 free(to_be_freed->backup);
1720                         free(to_be_freed);
1721
1722                         /* If backup memory was allocated to the remaining area, it's has
1723                          * the wrong size now */
1724                         if (c->backup) {
1725                                 free(c->backup);
1726                                 c->backup = NULL;
1727                         }
1728                 } else {
1729                         c = c->next;
1730                 }
1731         }
1732 }
1733
1734 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1735 {
1736         /* Reevaluate working area address based on MMU state*/
1737         if (target->working_areas == NULL) {
1738                 int retval;
1739                 int enabled;
1740
1741                 retval = target->type->mmu(target, &enabled);
1742                 if (retval != ERROR_OK)
1743                         return retval;
1744
1745                 if (!enabled) {
1746                         if (target->working_area_phys_spec) {
1747                                 LOG_DEBUG("MMU disabled, using physical "
1748                                         "address for working memory " TARGET_ADDR_FMT,
1749                                         target->working_area_phys);
1750                                 target->working_area = target->working_area_phys;
1751                         } else {
1752                                 LOG_ERROR("No working memory available. "
1753                                         "Specify -work-area-phys to target.");
1754                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1755                         }
1756                 } else {
1757                         if (target->working_area_virt_spec) {
1758                                 LOG_DEBUG("MMU enabled, using virtual "
1759                                         "address for working memory " TARGET_ADDR_FMT,
1760                                         target->working_area_virt);
1761                                 target->working_area = target->working_area_virt;
1762                         } else {
1763                                 LOG_ERROR("No working memory available. "
1764                                         "Specify -work-area-virt to target.");
1765                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1766                         }
1767                 }
1768
1769                 /* Set up initial working area on first call */
1770                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1771                 if (new_wa) {
1772                         new_wa->next = NULL;
1773                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1774                         new_wa->address = target->working_area;
1775                         new_wa->backup = NULL;
1776                         new_wa->user = NULL;
1777                         new_wa->free = true;
1778                 }
1779
1780                 target->working_areas = new_wa;
1781         }
1782
1783         /* only allocate multiples of 4 byte */
1784         if (size % 4)
1785                 size = (size + 3) & (~3UL);
1786
1787         struct working_area *c = target->working_areas;
1788
1789         /* Find the first large enough working area */
1790         while (c) {
1791                 if (c->free && c->size >= size)
1792                         break;
1793                 c = c->next;
1794         }
1795
1796         if (c == NULL)
1797                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1798
1799         /* Split the working area into the requested size */
1800         target_split_working_area(c, size);
1801
1802         LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
1803                           size, c->address);
1804
1805         if (target->backup_working_area) {
1806                 if (c->backup == NULL) {
1807                         c->backup = malloc(c->size);
1808                         if (c->backup == NULL)
1809                                 return ERROR_FAIL;
1810                 }
1811
1812                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1813                 if (retval != ERROR_OK)
1814                         return retval;
1815         }
1816
1817         /* mark as used, and return the new (reused) area */
1818         c->free = false;
1819         *area = c;
1820
1821         /* user pointer */
1822         c->user = area;
1823
1824         print_wa_layout(target);
1825
1826         return ERROR_OK;
1827 }
1828
1829 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1830 {
1831         int retval;
1832
1833         retval = target_alloc_working_area_try(target, size, area);
1834         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1835                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1836         return retval;
1837
1838 }
1839
1840 static int target_restore_working_area(struct target *target, struct working_area *area)
1841 {
1842         int retval = ERROR_OK;
1843
1844         if (target->backup_working_area && area->backup != NULL) {
1845                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1846                 if (retval != ERROR_OK)
1847                         LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1848                                         area->size, area->address);
1849         }
1850
1851         return retval;
1852 }
1853
1854 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1855 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1856 {
1857         int retval = ERROR_OK;
1858
1859         if (area->free)
1860                 return retval;
1861
1862         if (restore) {
1863                 retval = target_restore_working_area(target, area);
1864                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1865                 if (retval != ERROR_OK)
1866                         return retval;
1867         }
1868
1869         area->free = true;
1870
1871         LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1872                         area->size, area->address);
1873
1874         /* mark user pointer invalid */
1875         /* TODO: Is this really safe? It points to some previous caller's memory.
1876          * How could we know that the area pointer is still in that place and not
1877          * some other vital data? What's the purpose of this, anyway? */
1878         *area->user = NULL;
1879         area->user = NULL;
1880
1881         target_merge_working_areas(target);
1882
1883         print_wa_layout(target);
1884
1885         return retval;
1886 }
1887
1888 int target_free_working_area(struct target *target, struct working_area *area)
1889 {
1890         return target_free_working_area_restore(target, area, 1);
1891 }
1892
1893 static void target_destroy(struct target *target)
1894 {
1895         if (target->type->deinit_target)
1896                 target->type->deinit_target(target);
1897
1898         if (target->semihosting)
1899                 free(target->semihosting);
1900
1901         jtag_unregister_event_callback(jtag_enable_callback, target);
1902
1903         struct target_event_action *teap = target->event_action;
1904         while (teap) {
1905                 struct target_event_action *next = teap->next;
1906                 Jim_DecrRefCount(teap->interp, teap->body);
1907                 free(teap);
1908                 teap = next;
1909         }
1910
1911         target_free_all_working_areas(target);
1912         /* Now we have none or only one working area marked as free */
1913         if (target->working_areas) {
1914                 free(target->working_areas->backup);
1915                 free(target->working_areas);
1916         }
1917
1918         /* release the targets SMP list */
1919         if (target->smp) {
1920                 struct target_list *head = target->head;
1921                 while (head != NULL) {
1922                         struct target_list *pos = head->next;
1923                         head->target->smp = 0;
1924                         free(head);
1925                         head = pos;
1926                 }
1927                 target->smp = 0;
1928         }
1929
1930         free(target->type);
1931         free(target->trace_info);
1932         free(target->fileio_info);
1933         free(target->cmd_name);
1934         free(target);
1935 }
1936
1937 void target_quit(void)
1938 {
1939         struct target_event_callback *pe = target_event_callbacks;
1940         while (pe) {
1941                 struct target_event_callback *t = pe->next;
1942                 free(pe);
1943                 pe = t;
1944         }
1945         target_event_callbacks = NULL;
1946
1947         struct target_timer_callback *pt = target_timer_callbacks;
1948         while (pt) {
1949                 struct target_timer_callback *t = pt->next;
1950                 free(pt);
1951                 pt = t;
1952         }
1953         target_timer_callbacks = NULL;
1954
1955         for (struct target *target = all_targets; target;) {
1956                 struct target *tmp;
1957
1958                 tmp = target->next;
1959                 target_destroy(target);
1960                 target = tmp;
1961         }
1962
1963         all_targets = NULL;
1964 }
1965
1966 /* free resources and restore memory, if restoring memory fails,
1967  * free up resources anyway
1968  */
1969 static void target_free_all_working_areas_restore(struct target *target, int restore)
1970 {
1971         struct working_area *c = target->working_areas;
1972
1973         LOG_DEBUG("freeing all working areas");
1974
1975         /* Loop through all areas, restoring the allocated ones and marking them as free */
1976         while (c) {
1977                 if (!c->free) {
1978                         if (restore)
1979                                 target_restore_working_area(target, c);
1980                         c->free = true;
1981                         *c->user = NULL; /* Same as above */
1982                         c->user = NULL;
1983                 }
1984                 c = c->next;
1985         }
1986
1987         /* Run a merge pass to combine all areas into one */
1988         target_merge_working_areas(target);
1989
1990         print_wa_layout(target);
1991 }
1992
1993 void target_free_all_working_areas(struct target *target)
1994 {
1995         target_free_all_working_areas_restore(target, 1);
1996 }
1997
1998 /* Find the largest number of bytes that can be allocated */
1999 uint32_t target_get_working_area_avail(struct target *target)
2000 {
2001         struct working_area *c = target->working_areas;
2002         uint32_t max_size = 0;
2003
2004         if (c == NULL)
2005                 return target->working_area_size;
2006
2007         while (c) {
2008                 if (c->free && max_size < c->size)
2009                         max_size = c->size;
2010
2011                 c = c->next;
2012         }
2013
2014         return max_size;
2015 }
2016
2017 int target_arch_state(struct target *target)
2018 {
2019         int retval;
2020         if (target == NULL) {
2021                 LOG_WARNING("No target has been configured");
2022                 return ERROR_OK;
2023         }
2024
2025         if (target->state != TARGET_HALTED)
2026                 return ERROR_OK;
2027
2028         retval = target->type->arch_state(target);
2029         return retval;
2030 }
2031
2032 static int target_get_gdb_fileio_info_default(struct target *target,
2033                 struct gdb_fileio_info *fileio_info)
2034 {
2035         /* If target does not support semi-hosting function, target
2036            has no need to provide .get_gdb_fileio_info callback.
2037            It just return ERROR_FAIL and gdb_server will return "Txx"
2038            as target halted every time.  */
2039         return ERROR_FAIL;
2040 }
2041
2042 static int target_gdb_fileio_end_default(struct target *target,
2043                 int retcode, int fileio_errno, bool ctrl_c)
2044 {
2045         return ERROR_OK;
2046 }
2047
2048 static int target_profiling_default(struct target *target, uint32_t *samples,
2049                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2050 {
2051         struct timeval timeout, now;
2052
2053         gettimeofday(&timeout, NULL);
2054         timeval_add_time(&timeout, seconds, 0);
2055
2056         LOG_INFO("Starting profiling. Halting and resuming the"
2057                         " target as often as we can...");
2058
2059         uint32_t sample_count = 0;
2060         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2061         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
2062
2063         int retval = ERROR_OK;
2064         for (;;) {
2065                 target_poll(target);
2066                 if (target->state == TARGET_HALTED) {
2067                         uint32_t t = buf_get_u32(reg->value, 0, 32);
2068                         samples[sample_count++] = t;
2069                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
2070                         retval = target_resume(target, 1, 0, 0, 0);
2071                         target_poll(target);
2072                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2073                 } else if (target->state == TARGET_RUNNING) {
2074                         /* We want to quickly sample the PC. */
2075                         retval = target_halt(target);
2076                 } else {
2077                         LOG_INFO("Target not halted or running");
2078                         retval = ERROR_OK;
2079                         break;
2080                 }
2081
2082                 if (retval != ERROR_OK)
2083                         break;
2084
2085                 gettimeofday(&now, NULL);
2086                 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2087                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2088                         break;
2089                 }
2090         }
2091
2092         *num_samples = sample_count;
2093         return retval;
2094 }
2095
2096 /* Single aligned words are guaranteed to use 16 or 32 bit access
2097  * mode respectively, otherwise data is handled as quickly as
2098  * possible
2099  */
2100 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2101 {
2102         LOG_DEBUG("writing buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2103                           size, address);
2104
2105         if (!target_was_examined(target)) {
2106                 LOG_ERROR("Target not examined yet");
2107                 return ERROR_FAIL;
2108         }
2109
2110         if (size == 0)
2111                 return ERROR_OK;
2112
2113         if ((address + size - 1) < address) {
2114                 /* GDB can request this when e.g. PC is 0xfffffffc */
2115                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2116                                   address,
2117                                   size);
2118                 return ERROR_FAIL;
2119         }
2120
2121         return target->type->write_buffer(target, address, size, buffer);
2122 }
2123
2124 static int target_write_buffer_default(struct target *target,
2125         target_addr_t address, uint32_t count, const uint8_t *buffer)
2126 {
2127         uint32_t size;
2128
2129         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2130          * will have something to do with the size we leave to it. */
2131         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2132                 if (address & size) {
2133                         int retval = target_write_memory(target, address, size, 1, buffer);
2134                         if (retval != ERROR_OK)
2135                                 return retval;
2136                         address += size;
2137                         count -= size;
2138                         buffer += size;
2139                 }
2140         }
2141
2142         /* Write the data with as large access size as possible. */
2143         for (; size > 0; size /= 2) {
2144                 uint32_t aligned = count - count % size;
2145                 if (aligned > 0) {
2146                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2147                         if (retval != ERROR_OK)
2148                                 return retval;
2149                         address += aligned;
2150                         count -= aligned;
2151                         buffer += aligned;
2152                 }
2153         }
2154
2155         return ERROR_OK;
2156 }
2157
2158 /* Single aligned words are guaranteed to use 16 or 32 bit access
2159  * mode respectively, otherwise data is handled as quickly as
2160  * possible
2161  */
2162 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2163 {
2164         LOG_DEBUG("reading buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2165                           size, address);
2166
2167         if (!target_was_examined(target)) {
2168                 LOG_ERROR("Target not examined yet");
2169                 return ERROR_FAIL;
2170         }
2171
2172         if (size == 0)
2173                 return ERROR_OK;
2174
2175         if ((address + size - 1) < address) {
2176                 /* GDB can request this when e.g. PC is 0xfffffffc */
2177                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2178                                   address,
2179                                   size);
2180                 return ERROR_FAIL;
2181         }
2182
2183         return target->type->read_buffer(target, address, size, buffer);
2184 }
2185
2186 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2187 {
2188         uint32_t size;
2189
2190         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2191          * will have something to do with the size we leave to it. */
2192         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2193                 if (address & size) {
2194                         int retval = target_read_memory(target, address, size, 1, buffer);
2195                         if (retval != ERROR_OK)
2196                                 return retval;
2197                         address += size;
2198                         count -= size;
2199                         buffer += size;
2200                 }
2201         }
2202
2203         /* Read the data with as large access size as possible. */
2204         for (; size > 0; size /= 2) {
2205                 uint32_t aligned = count - count % size;
2206                 if (aligned > 0) {
2207                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2208                         if (retval != ERROR_OK)
2209                                 return retval;
2210                         address += aligned;
2211                         count -= aligned;
2212                         buffer += aligned;
2213                 }
2214         }
2215
2216         return ERROR_OK;
2217 }
2218
2219 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* crc)
2220 {
2221         uint8_t *buffer;
2222         int retval;
2223         uint32_t i;
2224         uint32_t checksum = 0;
2225         if (!target_was_examined(target)) {
2226                 LOG_ERROR("Target not examined yet");
2227                 return ERROR_FAIL;
2228         }
2229
2230         retval = target->type->checksum_memory(target, address, size, &checksum);
2231         if (retval != ERROR_OK) {
2232                 buffer = malloc(size);
2233                 if (buffer == NULL) {
2234                         LOG_ERROR("error allocating buffer for section (%" PRId32 " bytes)", size);
2235                         return ERROR_COMMAND_SYNTAX_ERROR;
2236                 }
2237                 retval = target_read_buffer(target, address, size, buffer);
2238                 if (retval != ERROR_OK) {
2239                         free(buffer);
2240                         return retval;
2241                 }
2242
2243                 /* convert to target endianness */
2244                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2245                         uint32_t target_data;
2246                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2247                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2248                 }
2249
2250                 retval = image_calculate_checksum(buffer, size, &checksum);
2251                 free(buffer);
2252         }
2253
2254         *crc = checksum;
2255
2256         return retval;
2257 }
2258
2259 int target_blank_check_memory(struct target *target,
2260         struct target_memory_check_block *blocks, int num_blocks,
2261         uint8_t erased_value)
2262 {
2263         if (!target_was_examined(target)) {
2264                 LOG_ERROR("Target not examined yet");
2265                 return ERROR_FAIL;
2266         }
2267
2268         if (target->type->blank_check_memory == NULL)
2269                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2270
2271         return target->type->blank_check_memory(target, blocks, num_blocks, erased_value);
2272 }
2273
2274 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2275 {
2276         uint8_t value_buf[8];
2277         if (!target_was_examined(target)) {
2278                 LOG_ERROR("Target not examined yet");
2279                 return ERROR_FAIL;
2280         }
2281
2282         int retval = target_read_memory(target, address, 8, 1, value_buf);
2283
2284         if (retval == ERROR_OK) {
2285                 *value = target_buffer_get_u64(target, value_buf);
2286                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2287                                   address,
2288                                   *value);
2289         } else {
2290                 *value = 0x0;
2291                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2292                                   address);
2293         }
2294
2295         return retval;
2296 }
2297
2298 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2299 {
2300         uint8_t value_buf[4];
2301         if (!target_was_examined(target)) {
2302                 LOG_ERROR("Target not examined yet");
2303                 return ERROR_FAIL;
2304         }
2305
2306         int retval = target_read_memory(target, address, 4, 1, value_buf);
2307
2308         if (retval == ERROR_OK) {
2309                 *value = target_buffer_get_u32(target, value_buf);
2310                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2311                                   address,
2312                                   *value);
2313         } else {
2314                 *value = 0x0;
2315                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2316                                   address);
2317         }
2318
2319         return retval;
2320 }
2321
2322 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2323 {
2324         uint8_t value_buf[2];
2325         if (!target_was_examined(target)) {
2326                 LOG_ERROR("Target not examined yet");
2327                 return ERROR_FAIL;
2328         }
2329
2330         int retval = target_read_memory(target, address, 2, 1, value_buf);
2331
2332         if (retval == ERROR_OK) {
2333                 *value = target_buffer_get_u16(target, value_buf);
2334                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2335                                   address,
2336                                   *value);
2337         } else {
2338                 *value = 0x0;
2339                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2340                                   address);
2341         }
2342
2343         return retval;
2344 }
2345
2346 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2347 {
2348         if (!target_was_examined(target)) {
2349                 LOG_ERROR("Target not examined yet");
2350                 return ERROR_FAIL;
2351         }
2352
2353         int retval = target_read_memory(target, address, 1, 1, value);
2354
2355         if (retval == ERROR_OK) {
2356                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2357                                   address,
2358                                   *value);
2359         } else {
2360                 *value = 0x0;
2361                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2362                                   address);
2363         }
2364
2365         return retval;
2366 }
2367
2368 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2369 {
2370         int retval;
2371         uint8_t value_buf[8];
2372         if (!target_was_examined(target)) {
2373                 LOG_ERROR("Target not examined yet");
2374                 return ERROR_FAIL;
2375         }
2376
2377         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2378                           address,
2379                           value);
2380
2381         target_buffer_set_u64(target, value_buf, value);
2382         retval = target_write_memory(target, address, 8, 1, value_buf);
2383         if (retval != ERROR_OK)
2384                 LOG_DEBUG("failed: %i", retval);
2385
2386         return retval;
2387 }
2388
2389 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2390 {
2391         int retval;
2392         uint8_t value_buf[4];
2393         if (!target_was_examined(target)) {
2394                 LOG_ERROR("Target not examined yet");
2395                 return ERROR_FAIL;
2396         }
2397
2398         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2399                           address,
2400                           value);
2401
2402         target_buffer_set_u32(target, value_buf, value);
2403         retval = target_write_memory(target, address, 4, 1, value_buf);
2404         if (retval != ERROR_OK)
2405                 LOG_DEBUG("failed: %i", retval);
2406
2407         return retval;
2408 }
2409
2410 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2411 {
2412         int retval;
2413         uint8_t value_buf[2];
2414         if (!target_was_examined(target)) {
2415                 LOG_ERROR("Target not examined yet");
2416                 return ERROR_FAIL;
2417         }
2418
2419         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2420                           address,
2421                           value);
2422
2423         target_buffer_set_u16(target, value_buf, value);
2424         retval = target_write_memory(target, address, 2, 1, value_buf);
2425         if (retval != ERROR_OK)
2426                 LOG_DEBUG("failed: %i", retval);
2427
2428         return retval;
2429 }
2430
2431 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2432 {
2433         int retval;
2434         if (!target_was_examined(target)) {
2435                 LOG_ERROR("Target not examined yet");
2436                 return ERROR_FAIL;
2437         }
2438
2439         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2440                           address, value);
2441
2442         retval = target_write_memory(target, address, 1, 1, &value);
2443         if (retval != ERROR_OK)
2444                 LOG_DEBUG("failed: %i", retval);
2445
2446         return retval;
2447 }
2448
2449 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2450 {
2451         int retval;
2452         uint8_t value_buf[8];
2453         if (!target_was_examined(target)) {
2454                 LOG_ERROR("Target not examined yet");
2455                 return ERROR_FAIL;
2456         }
2457
2458         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2459                           address,
2460                           value);
2461
2462         target_buffer_set_u64(target, value_buf, value);
2463         retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2464         if (retval != ERROR_OK)
2465                 LOG_DEBUG("failed: %i", retval);
2466
2467         return retval;
2468 }
2469
2470 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2471 {
2472         int retval;
2473         uint8_t value_buf[4];
2474         if (!target_was_examined(target)) {
2475                 LOG_ERROR("Target not examined yet");
2476                 return ERROR_FAIL;
2477         }
2478
2479         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2480                           address,
2481                           value);
2482
2483         target_buffer_set_u32(target, value_buf, value);
2484         retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2485         if (retval != ERROR_OK)
2486                 LOG_DEBUG("failed: %i", retval);
2487
2488         return retval;
2489 }
2490
2491 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2492 {
2493         int retval;
2494         uint8_t value_buf[2];
2495         if (!target_was_examined(target)) {
2496                 LOG_ERROR("Target not examined yet");
2497                 return ERROR_FAIL;
2498         }
2499
2500         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2501                           address,
2502                           value);
2503
2504         target_buffer_set_u16(target, value_buf, value);
2505         retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2506         if (retval != ERROR_OK)
2507                 LOG_DEBUG("failed: %i", retval);
2508
2509         return retval;
2510 }
2511
2512 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2513 {
2514         int retval;
2515         if (!target_was_examined(target)) {
2516                 LOG_ERROR("Target not examined yet");
2517                 return ERROR_FAIL;
2518         }
2519
2520         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2521                           address, value);
2522
2523         retval = target_write_phys_memory(target, address, 1, 1, &value);
2524         if (retval != ERROR_OK)
2525                 LOG_DEBUG("failed: %i", retval);
2526
2527         return retval;
2528 }
2529
2530 static int find_target(struct command_context *cmd_ctx, const char *name)
2531 {
2532         struct target *target = get_target(name);
2533         if (target == NULL) {
2534                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2535                 return ERROR_FAIL;
2536         }
2537         if (!target->tap->enabled) {
2538                 LOG_USER("Target: TAP %s is disabled, "
2539                          "can't be the current target\n",
2540                          target->tap->dotted_name);
2541                 return ERROR_FAIL;
2542         }
2543
2544         cmd_ctx->current_target = target;
2545         if (cmd_ctx->current_target_override)
2546                 cmd_ctx->current_target_override = target;
2547
2548         return ERROR_OK;
2549 }
2550
2551
2552 COMMAND_HANDLER(handle_targets_command)
2553 {
2554         int retval = ERROR_OK;
2555         if (CMD_ARGC == 1) {
2556                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2557                 if (retval == ERROR_OK) {
2558                         /* we're done! */
2559                         return retval;
2560                 }
2561         }
2562
2563         struct target *target = all_targets;
2564         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2565         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2566         while (target) {
2567                 const char *state;
2568                 char marker = ' ';
2569
2570                 if (target->tap->enabled)
2571                         state = target_state_name(target);
2572                 else
2573                         state = "tap-disabled";
2574
2575                 if (CMD_CTX->current_target == target)
2576                         marker = '*';
2577
2578                 /* keep columns lined up to match the headers above */
2579                 command_print(CMD_CTX,
2580                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2581                                 target->target_number,
2582                                 marker,
2583                                 target_name(target),
2584                                 target_type_name(target),
2585                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2586                                         target->endianness)->name,
2587                                 target->tap->dotted_name,
2588                                 state);
2589                 target = target->next;
2590         }
2591
2592         return retval;
2593 }
2594
2595 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2596
2597 static int powerDropout;
2598 static int srstAsserted;
2599
2600 static int runPowerRestore;
2601 static int runPowerDropout;
2602 static int runSrstAsserted;
2603 static int runSrstDeasserted;
2604
2605 static int sense_handler(void)
2606 {
2607         static int prevSrstAsserted;
2608         static int prevPowerdropout;
2609
2610         int retval = jtag_power_dropout(&powerDropout);
2611         if (retval != ERROR_OK)
2612                 return retval;
2613
2614         int powerRestored;
2615         powerRestored = prevPowerdropout && !powerDropout;
2616         if (powerRestored)
2617                 runPowerRestore = 1;
2618
2619         int64_t current = timeval_ms();
2620         static int64_t lastPower;
2621         bool waitMore = lastPower + 2000 > current;
2622         if (powerDropout && !waitMore) {
2623                 runPowerDropout = 1;
2624                 lastPower = current;
2625         }
2626
2627         retval = jtag_srst_asserted(&srstAsserted);
2628         if (retval != ERROR_OK)
2629                 return retval;
2630
2631         int srstDeasserted;
2632         srstDeasserted = prevSrstAsserted && !srstAsserted;
2633
2634         static int64_t lastSrst;
2635         waitMore = lastSrst + 2000 > current;
2636         if (srstDeasserted && !waitMore) {
2637                 runSrstDeasserted = 1;
2638                 lastSrst = current;
2639         }
2640
2641         if (!prevSrstAsserted && srstAsserted)
2642                 runSrstAsserted = 1;
2643
2644         prevSrstAsserted = srstAsserted;
2645         prevPowerdropout = powerDropout;
2646
2647         if (srstDeasserted || powerRestored) {
2648                 /* Other than logging the event we can't do anything here.
2649                  * Issuing a reset is a particularly bad idea as we might
2650                  * be inside a reset already.
2651                  */
2652         }
2653
2654         return ERROR_OK;
2655 }
2656
2657 /* process target state changes */
2658 static int handle_target(void *priv)
2659 {
2660         Jim_Interp *interp = (Jim_Interp *)priv;
2661         int retval = ERROR_OK;
2662
2663         if (!is_jtag_poll_safe()) {
2664                 /* polling is disabled currently */
2665                 return ERROR_OK;
2666         }
2667
2668         /* we do not want to recurse here... */
2669         static int recursive;
2670         if (!recursive) {
2671                 recursive = 1;
2672                 sense_handler();
2673                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2674                  * We need to avoid an infinite loop/recursion here and we do that by
2675                  * clearing the flags after running these events.
2676                  */
2677                 int did_something = 0;
2678                 if (runSrstAsserted) {
2679                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2680                         Jim_Eval(interp, "srst_asserted");
2681                         did_something = 1;
2682                 }
2683                 if (runSrstDeasserted) {
2684                         Jim_Eval(interp, "srst_deasserted");
2685                         did_something = 1;
2686                 }
2687                 if (runPowerDropout) {
2688                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2689                         Jim_Eval(interp, "power_dropout");
2690                         did_something = 1;
2691                 }
2692                 if (runPowerRestore) {
2693                         Jim_Eval(interp, "power_restore");
2694                         did_something = 1;
2695                 }
2696
2697                 if (did_something) {
2698                         /* clear detect flags */
2699                         sense_handler();
2700                 }
2701
2702                 /* clear action flags */
2703
2704                 runSrstAsserted = 0;
2705                 runSrstDeasserted = 0;
2706                 runPowerRestore = 0;
2707                 runPowerDropout = 0;
2708
2709                 recursive = 0;
2710         }
2711
2712         /* Poll targets for state changes unless that's globally disabled.
2713          * Skip targets that are currently disabled.
2714          */
2715         for (struct target *target = all_targets;
2716                         is_jtag_poll_safe() && target;
2717                         target = target->next) {
2718
2719                 if (!target_was_examined(target))
2720                         continue;
2721
2722                 if (!target->tap->enabled)
2723                         continue;
2724
2725                 if (target->backoff.times > target->backoff.count) {
2726                         /* do not poll this time as we failed previously */
2727                         target->backoff.count++;
2728                         continue;
2729                 }
2730                 target->backoff.count = 0;
2731
2732                 /* only poll target if we've got power and srst isn't asserted */
2733                 if (!powerDropout && !srstAsserted) {
2734                         /* polling may fail silently until the target has been examined */
2735                         retval = target_poll(target);
2736                         if (retval != ERROR_OK) {
2737                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2738                                 if (target->backoff.times * polling_interval < 5000) {
2739                                         target->backoff.times *= 2;
2740                                         target->backoff.times++;
2741                                 }
2742
2743                                 /* Tell GDB to halt the debugger. This allows the user to
2744                                  * run monitor commands to handle the situation.
2745                                  */
2746                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2747                         }
2748                         if (target->backoff.times > 0) {
2749                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2750                                 target_reset_examined(target);
2751                                 retval = target_examine_one(target);
2752                                 /* Target examination could have failed due to unstable connection,
2753                                  * but we set the examined flag anyway to repoll it later */
2754                                 if (retval != ERROR_OK) {
2755                                         target->examined = true;
2756                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2757                                                  target->backoff.times * polling_interval);
2758                                         return retval;
2759                                 }
2760                         }
2761
2762                         /* Since we succeeded, we reset backoff count */
2763                         target->backoff.times = 0;
2764                 }
2765         }
2766
2767         return retval;
2768 }
2769
2770 COMMAND_HANDLER(handle_reg_command)
2771 {
2772         struct target *target;
2773         struct reg *reg = NULL;
2774         unsigned count = 0;
2775         char *value;
2776
2777         LOG_DEBUG("-");
2778
2779         target = get_current_target(CMD_CTX);
2780
2781         /* list all available registers for the current target */
2782         if (CMD_ARGC == 0) {
2783                 struct reg_cache *cache = target->reg_cache;
2784
2785                 count = 0;
2786                 while (cache) {
2787                         unsigned i;
2788
2789                         command_print(CMD_CTX, "===== %s", cache->name);
2790
2791                         for (i = 0, reg = cache->reg_list;
2792                                         i < cache->num_regs;
2793                                         i++, reg++, count++) {
2794                                 /* only print cached values if they are valid */
2795                                 if (reg->valid) {
2796                                         value = buf_to_str(reg->value,
2797                                                         reg->size, 16);
2798                                         command_print(CMD_CTX,
2799                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2800                                                         count, reg->name,
2801                                                         reg->size, value,
2802                                                         reg->dirty
2803                                                                 ? " (dirty)"
2804                                                                 : "");
2805                                         free(value);
2806                                 } else {
2807                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2808                                                           count, reg->name,
2809                                                           reg->size) ;
2810                                 }
2811                         }
2812                         cache = cache->next;
2813                 }
2814
2815                 return ERROR_OK;
2816         }
2817
2818         /* access a single register by its ordinal number */
2819         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2820                 unsigned num;
2821                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2822
2823                 struct reg_cache *cache = target->reg_cache;
2824                 count = 0;
2825                 while (cache) {
2826                         unsigned i;
2827                         for (i = 0; i < cache->num_regs; i++) {
2828                                 if (count++ == num) {
2829                                         reg = &cache->reg_list[i];
2830                                         break;
2831                                 }
2832                         }
2833                         if (reg)
2834                                 break;
2835                         cache = cache->next;
2836                 }
2837
2838                 if (!reg) {
2839                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2840                                         "has only %i registers (0 - %i)", num, count, count - 1);
2841                         return ERROR_OK;
2842                 }
2843         } else {
2844                 /* access a single register by its name */
2845                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2846
2847                 if (!reg) {
2848                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2849                         return ERROR_OK;
2850                 }
2851         }
2852
2853         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2854
2855         /* display a register */
2856         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2857                         && (CMD_ARGV[1][0] <= '9')))) {
2858                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2859                         reg->valid = 0;
2860
2861                 if (reg->valid == 0)
2862                         reg->type->get(reg);
2863                 value = buf_to_str(reg->value, reg->size, 16);
2864                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2865                 free(value);
2866                 return ERROR_OK;
2867         }
2868
2869         /* set register value */
2870         if (CMD_ARGC == 2) {
2871                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2872                 if (buf == NULL)
2873                         return ERROR_FAIL;
2874                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2875
2876                 reg->type->set(reg, buf);
2877
2878                 value = buf_to_str(reg->value, reg->size, 16);
2879                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2880                 free(value);
2881
2882                 free(buf);
2883
2884                 return ERROR_OK;
2885         }
2886
2887         return ERROR_COMMAND_SYNTAX_ERROR;
2888 }
2889
2890 COMMAND_HANDLER(handle_poll_command)
2891 {
2892         int retval = ERROR_OK;
2893         struct target *target = get_current_target(CMD_CTX);
2894
2895         if (CMD_ARGC == 0) {
2896                 command_print(CMD_CTX, "background polling: %s",
2897                                 jtag_poll_get_enabled() ? "on" : "off");
2898                 command_print(CMD_CTX, "TAP: %s (%s)",
2899                                 target->tap->dotted_name,
2900                                 target->tap->enabled ? "enabled" : "disabled");
2901                 if (!target->tap->enabled)
2902                         return ERROR_OK;
2903                 retval = target_poll(target);
2904                 if (retval != ERROR_OK)
2905                         return retval;
2906                 retval = target_arch_state(target);
2907                 if (retval != ERROR_OK)
2908                         return retval;
2909         } else if (CMD_ARGC == 1) {
2910                 bool enable;
2911                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2912                 jtag_poll_set_enabled(enable);
2913         } else
2914                 return ERROR_COMMAND_SYNTAX_ERROR;
2915
2916         return retval;
2917 }
2918
2919 COMMAND_HANDLER(handle_wait_halt_command)
2920 {
2921         if (CMD_ARGC > 1)
2922                 return ERROR_COMMAND_SYNTAX_ERROR;
2923
2924         unsigned ms = DEFAULT_HALT_TIMEOUT;
2925         if (1 == CMD_ARGC) {
2926                 int retval = parse_uint(CMD_ARGV[0], &ms);
2927                 if (ERROR_OK != retval)
2928                         return ERROR_COMMAND_SYNTAX_ERROR;
2929         }
2930
2931         struct target *target = get_current_target(CMD_CTX);
2932         return target_wait_state(target, TARGET_HALTED, ms);
2933 }
2934
2935 /* wait for target state to change. The trick here is to have a low
2936  * latency for short waits and not to suck up all the CPU time
2937  * on longer waits.
2938  *
2939  * After 500ms, keep_alive() is invoked
2940  */
2941 int target_wait_state(struct target *target, enum target_state state, int ms)
2942 {
2943         int retval;
2944         int64_t then = 0, cur;
2945         bool once = true;
2946
2947         for (;;) {
2948                 retval = target_poll(target);
2949                 if (retval != ERROR_OK)
2950                         return retval;
2951                 if (target->state == state)
2952                         break;
2953                 cur = timeval_ms();
2954                 if (once) {
2955                         once = false;
2956                         then = timeval_ms();
2957                         LOG_DEBUG("waiting for target %s...",
2958                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2959                 }
2960
2961                 if (cur-then > 500)
2962                         keep_alive();
2963
2964                 if ((cur-then) > ms) {
2965                         LOG_ERROR("timed out while waiting for target %s",
2966                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2967                         return ERROR_FAIL;
2968                 }
2969         }
2970
2971         return ERROR_OK;
2972 }
2973
2974 COMMAND_HANDLER(handle_halt_command)
2975 {
2976         LOG_DEBUG("-");
2977
2978         struct target *target = get_current_target(CMD_CTX);
2979
2980         target->verbose_halt_msg = true;
2981
2982         int retval = target_halt(target);
2983         if (ERROR_OK != retval)
2984                 return retval;
2985
2986         if (CMD_ARGC == 1) {
2987                 unsigned wait_local;
2988                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2989                 if (ERROR_OK != retval)
2990                         return ERROR_COMMAND_SYNTAX_ERROR;
2991                 if (!wait_local)
2992                         return ERROR_OK;
2993         }
2994
2995         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2996 }
2997
2998 COMMAND_HANDLER(handle_soft_reset_halt_command)
2999 {
3000         struct target *target = get_current_target(CMD_CTX);
3001
3002         LOG_USER("requesting target halt and executing a soft reset");
3003
3004         target_soft_reset_halt(target);
3005
3006         return ERROR_OK;
3007 }
3008
3009 COMMAND_HANDLER(handle_reset_command)
3010 {
3011         if (CMD_ARGC > 1)
3012                 return ERROR_COMMAND_SYNTAX_ERROR;
3013
3014         enum target_reset_mode reset_mode = RESET_RUN;
3015         if (CMD_ARGC == 1) {
3016                 const Jim_Nvp *n;
3017                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
3018                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
3019                         return ERROR_COMMAND_SYNTAX_ERROR;
3020                 reset_mode = n->value;
3021         }
3022
3023         /* reset *all* targets */
3024         return target_process_reset(CMD_CTX, reset_mode);
3025 }
3026
3027
3028 COMMAND_HANDLER(handle_resume_command)
3029 {
3030         int current = 1;
3031         if (CMD_ARGC > 1)
3032                 return ERROR_COMMAND_SYNTAX_ERROR;
3033
3034         struct target *target = get_current_target(CMD_CTX);
3035
3036         /* with no CMD_ARGV, resume from current pc, addr = 0,
3037          * with one arguments, addr = CMD_ARGV[0],
3038          * handle breakpoints, not debugging */
3039         target_addr_t addr = 0;
3040         if (CMD_ARGC == 1) {
3041                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3042                 current = 0;
3043         }
3044
3045         return target_resume(target, current, addr, 1, 0);
3046 }
3047
3048 COMMAND_HANDLER(handle_step_command)
3049 {
3050         if (CMD_ARGC > 1)
3051                 return ERROR_COMMAND_SYNTAX_ERROR;
3052
3053         LOG_DEBUG("-");
3054
3055         /* with no CMD_ARGV, step from current pc, addr = 0,
3056          * with one argument addr = CMD_ARGV[0],
3057          * handle breakpoints, debugging */
3058         target_addr_t addr = 0;
3059         int current_pc = 1;
3060         if (CMD_ARGC == 1) {
3061                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3062                 current_pc = 0;
3063         }
3064
3065         struct target *target = get_current_target(CMD_CTX);
3066
3067         return target->type->step(target, current_pc, addr, 1);
3068 }
3069
3070 static void handle_md_output(struct command_context *cmd_ctx,
3071                 struct target *target, target_addr_t address, unsigned size,
3072                 unsigned count, const uint8_t *buffer)
3073 {
3074         const unsigned line_bytecnt = 32;
3075         unsigned line_modulo = line_bytecnt / size;
3076
3077         char output[line_bytecnt * 4 + 1];
3078         unsigned output_len = 0;
3079
3080         const char *value_fmt;
3081         switch (size) {
3082         case 8:
3083                 value_fmt = "%16.16"PRIx64" ";
3084                 break;
3085         case 4:
3086                 value_fmt = "%8.8"PRIx64" ";
3087                 break;
3088         case 2:
3089                 value_fmt = "%4.4"PRIx64" ";
3090                 break;
3091         case 1:
3092                 value_fmt = "%2.2"PRIx64" ";
3093                 break;
3094         default:
3095                 /* "can't happen", caller checked */
3096                 LOG_ERROR("invalid memory read size: %u", size);
3097                 return;
3098         }
3099
3100         for (unsigned i = 0; i < count; i++) {
3101                 if (i % line_modulo == 0) {
3102                         output_len += snprintf(output + output_len,
3103                                         sizeof(output) - output_len,
3104                                         TARGET_ADDR_FMT ": ",
3105                                         (address + (i * size)));
3106                 }
3107
3108                 uint64_t value = 0;
3109                 const uint8_t *value_ptr = buffer + i * size;
3110                 switch (size) {
3111                 case 8:
3112                         value = target_buffer_get_u64(target, value_ptr);
3113                         break;
3114                 case 4:
3115                         value = target_buffer_get_u32(target, value_ptr);
3116                         break;
3117                 case 2:
3118                         value = target_buffer_get_u16(target, value_ptr);
3119                         break;
3120                 case 1:
3121                         value = *value_ptr;
3122                 }
3123                 output_len += snprintf(output + output_len,
3124                                 sizeof(output) - output_len,
3125                                 value_fmt, value);
3126
3127                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3128                         command_print(cmd_ctx, "%s", output);
3129                         output_len = 0;
3130                 }
3131         }
3132 }
3133
3134 COMMAND_HANDLER(handle_md_command)
3135 {
3136         if (CMD_ARGC < 1)
3137                 return ERROR_COMMAND_SYNTAX_ERROR;
3138
3139         unsigned size = 0;
3140         switch (CMD_NAME[2]) {
3141         case 'd':
3142                 size = 8;
3143                 break;
3144         case 'w':
3145                 size = 4;
3146                 break;
3147         case 'h':
3148                 size = 2;
3149                 break;
3150         case 'b':
3151                 size = 1;
3152                 break;
3153         default:
3154                 return ERROR_COMMAND_SYNTAX_ERROR;
3155         }
3156
3157         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3158         int (*fn)(struct target *target,
3159                         target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3160         if (physical) {
3161                 CMD_ARGC--;
3162                 CMD_ARGV++;
3163                 fn = target_read_phys_memory;
3164         } else
3165                 fn = target_read_memory;
3166         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3167                 return ERROR_COMMAND_SYNTAX_ERROR;
3168
3169         target_addr_t address;
3170         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3171
3172         unsigned count = 1;
3173         if (CMD_ARGC == 2)
3174                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3175
3176         uint8_t *buffer = calloc(count, size);
3177         if (buffer == NULL) {
3178                 LOG_ERROR("Failed to allocate md read buffer");
3179                 return ERROR_FAIL;
3180         }
3181
3182         struct target *target = get_current_target(CMD_CTX);
3183         int retval = fn(target, address, size, count, buffer);
3184         if (ERROR_OK == retval)
3185                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3186
3187         free(buffer);
3188
3189         return retval;
3190 }
3191
3192 typedef int (*target_write_fn)(struct target *target,
3193                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3194
3195 static int target_fill_mem(struct target *target,
3196                 target_addr_t address,
3197                 target_write_fn fn,
3198                 unsigned data_size,
3199                 /* value */
3200                 uint64_t b,
3201                 /* count */
3202                 unsigned c)
3203 {
3204         /* We have to write in reasonably large chunks to be able
3205          * to fill large memory areas with any sane speed */
3206         const unsigned chunk_size = 16384;
3207         uint8_t *target_buf = malloc(chunk_size * data_size);
3208         if (target_buf == NULL) {
3209                 LOG_ERROR("Out of memory");
3210                 return ERROR_FAIL;
3211         }
3212
3213         for (unsigned i = 0; i < chunk_size; i++) {
3214                 switch (data_size) {
3215                 case 8:
3216                         target_buffer_set_u64(target, target_buf + i * data_size, b);
3217                         break;
3218                 case 4:
3219                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3220                         break;
3221                 case 2:
3222                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3223                         break;
3224                 case 1:
3225                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3226                         break;
3227                 default:
3228                         exit(-1);
3229                 }
3230         }
3231
3232         int retval = ERROR_OK;
3233
3234         for (unsigned x = 0; x < c; x += chunk_size) {
3235                 unsigned current;
3236                 current = c - x;
3237                 if (current > chunk_size)
3238                         current = chunk_size;
3239                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3240                 if (retval != ERROR_OK)
3241                         break;
3242                 /* avoid GDB timeouts */
3243                 keep_alive();
3244         }
3245         free(target_buf);
3246
3247         return retval;
3248 }
3249
3250
3251 COMMAND_HANDLER(handle_mw_command)
3252 {
3253         if (CMD_ARGC < 2)
3254                 return ERROR_COMMAND_SYNTAX_ERROR;
3255         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3256         target_write_fn fn;
3257         if (physical) {
3258                 CMD_ARGC--;
3259                 CMD_ARGV++;
3260                 fn = target_write_phys_memory;
3261         } else
3262                 fn = target_write_memory;
3263         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3264                 return ERROR_COMMAND_SYNTAX_ERROR;
3265
3266         target_addr_t address;
3267         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3268
3269         target_addr_t value;
3270         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], value);
3271
3272         unsigned count = 1;
3273         if (CMD_ARGC == 3)
3274                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3275
3276         struct target *target = get_current_target(CMD_CTX);
3277         unsigned wordsize;
3278         switch (CMD_NAME[2]) {
3279                 case 'd':
3280                         wordsize = 8;
3281                         break;
3282                 case 'w':
3283                         wordsize = 4;
3284                         break;
3285                 case 'h':
3286                         wordsize = 2;
3287                         break;
3288                 case 'b':
3289                         wordsize = 1;
3290                         break;
3291                 default:
3292                         return ERROR_COMMAND_SYNTAX_ERROR;
3293         }
3294
3295         return target_fill_mem(target, address, fn, wordsize, value, count);
3296 }
3297
3298 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3299                 target_addr_t *min_address, target_addr_t *max_address)
3300 {
3301         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3302                 return ERROR_COMMAND_SYNTAX_ERROR;
3303
3304         /* a base address isn't always necessary,
3305          * default to 0x0 (i.e. don't relocate) */
3306         if (CMD_ARGC >= 2) {
3307                 target_addr_t addr;
3308                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3309                 image->base_address = addr;
3310                 image->base_address_set = 1;
3311         } else
3312                 image->base_address_set = 0;
3313
3314         image->start_address_set = 0;
3315
3316         if (CMD_ARGC >= 4)
3317                 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3318         if (CMD_ARGC == 5) {
3319                 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3320                 /* use size (given) to find max (required) */
3321                 *max_address += *min_address;
3322         }
3323
3324         if (*min_address > *max_address)
3325                 return ERROR_COMMAND_SYNTAX_ERROR;
3326
3327         return ERROR_OK;
3328 }
3329
3330 COMMAND_HANDLER(handle_load_image_command)
3331 {
3332         uint8_t *buffer;
3333         size_t buf_cnt;
3334         uint32_t image_size;
3335         target_addr_t min_address = 0;
3336         target_addr_t max_address = -1;
3337         int i;
3338         struct image image;
3339
3340         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3341                         &image, &min_address, &max_address);
3342         if (ERROR_OK != retval)
3343                 return retval;
3344
3345         struct target *target = get_current_target(CMD_CTX);
3346
3347         struct duration bench;
3348         duration_start(&bench);
3349
3350         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3351                 return ERROR_FAIL;
3352
3353         image_size = 0x0;
3354         retval = ERROR_OK;
3355         for (i = 0; i < image.num_sections; i++) {
3356                 buffer = malloc(image.sections[i].size);
3357                 if (buffer == NULL) {
3358                         command_print(CMD_CTX,
3359                                                   "error allocating buffer for section (%d bytes)",
3360                                                   (int)(image.sections[i].size));
3361                         retval = ERROR_FAIL;
3362                         break;
3363                 }
3364
3365                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3366                 if (retval != ERROR_OK) {
3367                         free(buffer);
3368                         break;
3369                 }
3370
3371                 uint32_t offset = 0;
3372                 uint32_t length = buf_cnt;
3373
3374                 /* DANGER!!! beware of unsigned comparision here!!! */
3375
3376                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3377                                 (image.sections[i].base_address < max_address)) {
3378
3379                         if (image.sections[i].base_address < min_address) {
3380                                 /* clip addresses below */
3381                                 offset += min_address-image.sections[i].base_address;
3382                                 length -= offset;
3383                         }
3384
3385                         if (image.sections[i].base_address + buf_cnt > max_address)
3386                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3387
3388                         retval = target_write_buffer(target,
3389                                         image.sections[i].base_address + offset, length, buffer + offset);
3390                         if (retval != ERROR_OK) {
3391                                 free(buffer);
3392                                 break;
3393                         }
3394                         image_size += length;
3395                         command_print(CMD_CTX, "%u bytes written at address " TARGET_ADDR_FMT "",
3396                                         (unsigned int)length,
3397                                         image.sections[i].base_address + offset);
3398                 }
3399
3400                 free(buffer);
3401         }
3402
3403         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3404                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3405                                 "in %fs (%0.3f KiB/s)", image_size,
3406                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3407         }
3408
3409         image_close(&image);
3410
3411         return retval;
3412
3413 }
3414
3415 COMMAND_HANDLER(handle_dump_image_command)
3416 {
3417         struct fileio *fileio;
3418         uint8_t *buffer;
3419         int retval, retvaltemp;
3420         target_addr_t address, size;
3421         struct duration bench;
3422         struct target *target = get_current_target(CMD_CTX);
3423
3424         if (CMD_ARGC != 3)
3425                 return ERROR_COMMAND_SYNTAX_ERROR;
3426
3427         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3428         COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3429
3430         uint32_t buf_size = (size > 4096) ? 4096 : size;
3431         buffer = malloc(buf_size);
3432         if (!buffer)
3433                 return ERROR_FAIL;
3434
3435         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3436         if (retval != ERROR_OK) {
3437                 free(buffer);
3438                 return retval;
3439         }
3440
3441         duration_start(&bench);
3442
3443         while (size > 0) {
3444                 size_t size_written;
3445                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3446                 retval = target_read_buffer(target, address, this_run_size, buffer);
3447                 if (retval != ERROR_OK)
3448                         break;
3449
3450                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3451                 if (retval != ERROR_OK)
3452                         break;
3453
3454                 size -= this_run_size;
3455                 address += this_run_size;
3456         }
3457
3458         free(buffer);
3459
3460         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3461                 size_t filesize;
3462                 retval = fileio_size(fileio, &filesize);
3463                 if (retval != ERROR_OK)
3464                         return retval;
3465                 command_print(CMD_CTX,
3466                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3467                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3468         }
3469
3470         retvaltemp = fileio_close(fileio);
3471         if (retvaltemp != ERROR_OK)
3472                 return retvaltemp;
3473
3474         return retval;
3475 }
3476
3477 enum verify_mode {
3478         IMAGE_TEST = 0,
3479         IMAGE_VERIFY = 1,
3480         IMAGE_CHECKSUM_ONLY = 2
3481 };
3482
3483 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3484 {
3485         uint8_t *buffer;
3486         size_t buf_cnt;
3487         uint32_t image_size;
3488         int i;
3489         int retval;
3490         uint32_t checksum = 0;
3491         uint32_t mem_checksum = 0;
3492
3493         struct image image;
3494
3495         struct target *target = get_current_target(CMD_CTX);
3496
3497         if (CMD_ARGC < 1)
3498                 return ERROR_COMMAND_SYNTAX_ERROR;
3499
3500         if (!target) {
3501                 LOG_ERROR("no target selected");
3502                 return ERROR_FAIL;
3503         }
3504
3505         struct duration bench;
3506         duration_start(&bench);
3507
3508         if (CMD_ARGC >= 2) {
3509                 target_addr_t addr;
3510                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3511                 image.base_address = addr;
3512                 image.base_address_set = 1;
3513         } else {
3514                 image.base_address_set = 0;
3515                 image.base_address = 0x0;
3516         }
3517
3518         image.start_address_set = 0;
3519
3520         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3521         if (retval != ERROR_OK)
3522                 return retval;
3523
3524         image_size = 0x0;
3525         int diffs = 0;
3526         retval = ERROR_OK;
3527         for (i = 0; i < image.num_sections; i++) {
3528                 buffer = malloc(image.sections[i].size);
3529                 if (buffer == NULL) {
3530                         command_print(CMD_CTX,
3531                                         "error allocating buffer for section (%d bytes)",
3532                                         (int)(image.sections[i].size));
3533                         break;
3534                 }
3535                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3536                 if (retval != ERROR_OK) {
3537                         free(buffer);
3538                         break;
3539                 }
3540
3541                 if (verify >= IMAGE_VERIFY) {
3542                         /* calculate checksum of image */
3543                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3544                         if (retval != ERROR_OK) {
3545                                 free(buffer);
3546                                 break;
3547                         }
3548
3549                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3550                         if (retval != ERROR_OK) {
3551                                 free(buffer);
3552                                 break;
3553                         }
3554                         if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3555                                 LOG_ERROR("checksum mismatch");
3556                                 free(buffer);
3557                                 retval = ERROR_FAIL;
3558                                 goto done;
3559                         }
3560                         if (checksum != mem_checksum) {
3561                                 /* failed crc checksum, fall back to a binary compare */
3562                                 uint8_t *data;
3563
3564                                 if (diffs == 0)
3565                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3566
3567                                 data = malloc(buf_cnt);
3568
3569                                 /* Can we use 32bit word accesses? */
3570                                 int size = 1;
3571                                 int count = buf_cnt;
3572                                 if ((count % 4) == 0) {
3573                                         size *= 4;
3574                                         count /= 4;
3575                                 }
3576                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3577                                 if (retval == ERROR_OK) {
3578                                         uint32_t t;
3579                                         for (t = 0; t < buf_cnt; t++) {
3580                                                 if (data[t] != buffer[t]) {
3581                                                         command_print(CMD_CTX,
3582                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3583                                                                                   diffs,
3584                                                                                   (unsigned)(t + image.sections[i].base_address),
3585                                                                                   data[t],
3586                                                                                   buffer[t]);
3587                                                         if (diffs++ >= 127) {
3588                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3589                                                                 free(data);
3590                                                                 free(buffer);
3591                                                                 goto done;
3592                                                         }
3593                                                 }
3594                                                 keep_alive();
3595                                         }
3596                                 }
3597                                 free(data);
3598                         }
3599                 } else {
3600                         command_print(CMD_CTX, "address " TARGET_ADDR_FMT " length 0x%08zx",
3601                                                   image.sections[i].base_address,
3602                                                   buf_cnt);
3603                 }
3604
3605                 free(buffer);
3606                 image_size += buf_cnt;
3607         }
3608         if (diffs > 0)
3609                 command_print(CMD_CTX, "No more differences found.");
3610 done:
3611         if (diffs > 0)
3612                 retval = ERROR_FAIL;
3613         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3614                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3615                                 "in %fs (%0.3f KiB/s)", image_size,
3616                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3617         }
3618
3619         image_close(&image);
3620
3621         return retval;
3622 }
3623
3624 COMMAND_HANDLER(handle_verify_image_checksum_command)
3625 {
3626         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3627 }
3628
3629 COMMAND_HANDLER(handle_verify_image_command)
3630 {
3631         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3632 }
3633
3634 COMMAND_HANDLER(handle_test_image_command)
3635 {
3636         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3637 }
3638
3639 static int handle_bp_command_list(struct command_context *cmd_ctx)
3640 {
3641         struct target *target = get_current_target(cmd_ctx);
3642         struct breakpoint *breakpoint = target->breakpoints;
3643         while (breakpoint) {
3644                 if (breakpoint->type == BKPT_SOFT) {
3645                         char *buf = buf_to_str(breakpoint->orig_instr,
3646                                         breakpoint->length, 16);
3647                         command_print(cmd_ctx, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3648                                         breakpoint->address,
3649                                         breakpoint->length,
3650                                         breakpoint->set, buf);
3651                         free(buf);
3652                 } else {
3653                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3654                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3655                                                         breakpoint->asid,
3656                                                         breakpoint->length, breakpoint->set);
3657                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3658                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3659                                                         breakpoint->address,
3660                                                         breakpoint->length, breakpoint->set);
3661                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3662                                                         breakpoint->asid);
3663                         } else
3664                                 command_print(cmd_ctx, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3665                                                         breakpoint->address,
3666                                                         breakpoint->length, breakpoint->set);
3667                 }
3668
3669                 breakpoint = breakpoint->next;
3670         }
3671         return ERROR_OK;
3672 }
3673
3674 static int handle_bp_command_set(struct command_context *cmd_ctx,
3675                 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3676 {
3677         struct target *target = get_current_target(cmd_ctx);
3678         int retval;
3679
3680         if (asid == 0) {
3681                 retval = breakpoint_add(target, addr, length, hw);
3682                 if (ERROR_OK == retval)
3683                         command_print(cmd_ctx, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3684                 else {
3685                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3686                         return retval;
3687                 }
3688         } else if (addr == 0) {
3689                 if (target->type->add_context_breakpoint == NULL) {
3690                         LOG_WARNING("Context breakpoint not available");
3691                         return ERROR_OK;
3692                 }
3693                 retval = context_breakpoint_add(target, asid, length, hw);
3694                 if (ERROR_OK == retval)
3695                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3696                 else {
3697                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3698                         return retval;
3699                 }
3700         } else {
3701                 if (target->type->add_hybrid_breakpoint == NULL) {
3702                         LOG_WARNING("Hybrid breakpoint not available");
3703                         return ERROR_OK;
3704                 }
3705                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3706                 if (ERROR_OK == retval)
3707                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3708                 else {
3709                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3710                         return retval;
3711                 }
3712         }
3713         return ERROR_OK;
3714 }
3715
3716 COMMAND_HANDLER(handle_bp_command)
3717 {
3718         target_addr_t addr;
3719         uint32_t asid;
3720         uint32_t length;
3721         int hw = BKPT_SOFT;
3722
3723         switch (CMD_ARGC) {
3724                 case 0:
3725                         return handle_bp_command_list(CMD_CTX);
3726
3727                 case 2:
3728                         asid = 0;
3729                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3730                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3731                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3732
3733                 case 3:
3734                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3735                                 hw = BKPT_HARD;
3736                                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3737                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3738                                 asid = 0;
3739                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3740                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3741                                 hw = BKPT_HARD;
3742                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3743                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3744                                 addr = 0;
3745                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3746                         }
3747                         /* fallthrough */
3748                 case 4:
3749                         hw = BKPT_HARD;
3750                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3751                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3752                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3753                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3754
3755                 default:
3756                         return ERROR_COMMAND_SYNTAX_ERROR;
3757         }
3758 }
3759
3760 COMMAND_HANDLER(handle_rbp_command)
3761 {
3762         if (CMD_ARGC != 1)
3763                 return ERROR_COMMAND_SYNTAX_ERROR;
3764
3765         target_addr_t addr;
3766         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3767
3768         struct target *target = get_current_target(CMD_CTX);
3769         breakpoint_remove(target, addr);
3770
3771         return ERROR_OK;
3772 }
3773
3774 COMMAND_HANDLER(handle_wp_command)
3775 {
3776         struct target *target = get_current_target(CMD_CTX);
3777
3778         if (CMD_ARGC == 0) {
3779                 struct watchpoint *watchpoint = target->watchpoints;
3780
3781                 while (watchpoint) {
3782                         command_print(CMD_CTX, "address: " TARGET_ADDR_FMT
3783                                         ", len: 0x%8.8" PRIx32
3784                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3785                                         ", mask: 0x%8.8" PRIx32,
3786                                         watchpoint->address,
3787                                         watchpoint->length,
3788                                         (int)watchpoint->rw,
3789                                         watchpoint->value,
3790                                         watchpoint->mask);
3791                         watchpoint = watchpoint->next;
3792                 }
3793                 return ERROR_OK;
3794         }
3795
3796         enum watchpoint_rw type = WPT_ACCESS;
3797         uint32_t addr = 0;
3798         uint32_t length = 0;
3799         uint32_t data_value = 0x0;
3800         uint32_t data_mask = 0xffffffff;
3801
3802         switch (CMD_ARGC) {
3803         case 5:
3804                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3805                 /* fall through */
3806         case 4:
3807                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3808                 /* fall through */
3809         case 3:
3810                 switch (CMD_ARGV[2][0]) {
3811                 case 'r':
3812                         type = WPT_READ;
3813                         break;
3814                 case 'w':
3815                         type = WPT_WRITE;
3816                         break;
3817                 case 'a':
3818                         type = WPT_ACCESS;
3819                         break;
3820                 default:
3821                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3822                         return ERROR_COMMAND_SYNTAX_ERROR;
3823                 }
3824                 /* fall through */
3825         case 2:
3826                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3827                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3828                 break;
3829
3830         default:
3831                 return ERROR_COMMAND_SYNTAX_ERROR;
3832         }
3833
3834         int retval = watchpoint_add(target, addr, length, type,
3835                         data_value, data_mask);
3836         if (ERROR_OK != retval)
3837                 LOG_ERROR("Failure setting watchpoints");
3838
3839         return retval;
3840 }
3841
3842 COMMAND_HANDLER(handle_rwp_command)
3843 {
3844         if (CMD_ARGC != 1)
3845                 return ERROR_COMMAND_SYNTAX_ERROR;
3846
3847         uint32_t addr;
3848         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3849
3850         struct target *target = get_current_target(CMD_CTX);
3851         watchpoint_remove(target, addr);
3852
3853         return ERROR_OK;
3854 }
3855
3856 /**
3857  * Translate a virtual address to a physical address.
3858  *
3859  * The low-level target implementation must have logged a detailed error
3860  * which is forwarded to telnet/GDB session.
3861  */
3862 COMMAND_HANDLER(handle_virt2phys_command)
3863 {
3864         if (CMD_ARGC != 1)
3865                 return ERROR_COMMAND_SYNTAX_ERROR;
3866
3867         target_addr_t va;
3868         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], va);
3869         target_addr_t pa;
3870
3871         struct target *target = get_current_target(CMD_CTX);
3872         int retval = target->type->virt2phys(target, va, &pa);
3873         if (retval == ERROR_OK)
3874                 command_print(CMD_CTX, "Physical address " TARGET_ADDR_FMT "", pa);
3875
3876         return retval;
3877 }
3878
3879 static void writeData(FILE *f, const void *data, size_t len)
3880 {
3881         size_t written = fwrite(data, 1, len, f);
3882         if (written != len)
3883                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3884 }
3885
3886 static void writeLong(FILE *f, int l, struct target *target)
3887 {
3888         uint8_t val[4];
3889
3890         target_buffer_set_u32(target, val, l);
3891         writeData(f, val, 4);
3892 }
3893
3894 static void writeString(FILE *f, char *s)
3895 {
3896         writeData(f, s, strlen(s));
3897 }
3898
3899 typedef unsigned char UNIT[2];  /* unit of profiling */
3900
3901 /* Dump a gmon.out histogram file. */
3902 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3903                         uint32_t start_address, uint32_t end_address, struct target *target, uint32_t duration_ms)
3904 {
3905         uint32_t i;
3906         FILE *f = fopen(filename, "w");
3907         if (f == NULL)
3908                 return;
3909         writeString(f, "gmon");
3910         writeLong(f, 0x00000001, target); /* Version */
3911         writeLong(f, 0, target); /* padding */
3912         writeLong(f, 0, target); /* padding */
3913         writeLong(f, 0, target); /* padding */
3914
3915         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3916         writeData(f, &zero, 1);
3917
3918         /* figure out bucket size */
3919         uint32_t min;
3920         uint32_t max;
3921         if (with_range) {
3922                 min = start_address;
3923                 max = end_address;
3924         } else {
3925                 min = samples[0];
3926                 max = samples[0];
3927                 for (i = 0; i < sampleNum; i++) {
3928                         if (min > samples[i])
3929                                 min = samples[i];
3930                         if (max < samples[i])
3931                                 max = samples[i];
3932                 }
3933
3934                 /* max should be (largest sample + 1)
3935                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3936                 max++;
3937         }
3938
3939         int addressSpace = max - min;
3940         assert(addressSpace >= 2);
3941
3942         /* FIXME: What is the reasonable number of buckets?
3943          * The profiling result will be more accurate if there are enough buckets. */
3944         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3945         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3946         if (numBuckets > maxBuckets)
3947                 numBuckets = maxBuckets;
3948         int *buckets = malloc(sizeof(int) * numBuckets);
3949         if (buckets == NULL) {
3950                 fclose(f);
3951                 return;
3952         }
3953         memset(buckets, 0, sizeof(int) * numBuckets);
3954         for (i = 0; i < sampleNum; i++) {
3955                 uint32_t address = samples[i];
3956
3957                 if ((address < min) || (max <= address))
3958                         continue;
3959
3960                 long long a = address - min;
3961                 long long b = numBuckets;
3962                 long long c = addressSpace;
3963                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3964                 buckets[index_t]++;
3965         }
3966
3967         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3968         writeLong(f, min, target);                      /* low_pc */
3969         writeLong(f, max, target);                      /* high_pc */
3970         writeLong(f, numBuckets, target);       /* # of buckets */
3971         float sample_rate = sampleNum / (duration_ms / 1000.0);
3972         writeLong(f, sample_rate, target);
3973         writeString(f, "seconds");
3974         for (i = 0; i < (15-strlen("seconds")); i++)
3975                 writeData(f, &zero, 1);
3976         writeString(f, "s");
3977
3978         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3979
3980         char *data = malloc(2 * numBuckets);
3981         if (data != NULL) {
3982                 for (i = 0; i < numBuckets; i++) {
3983                         int val;
3984                         val = buckets[i];
3985                         if (val > 65535)
3986                                 val = 65535;
3987                         data[i * 2] = val&0xff;
3988                         data[i * 2 + 1] = (val >> 8) & 0xff;
3989                 }
3990                 free(buckets);
3991                 writeData(f, data, numBuckets * 2);
3992                 free(data);
3993         } else
3994                 free(buckets);
3995
3996         fclose(f);
3997 }
3998
3999 /* profiling samples the CPU PC as quickly as OpenOCD is able,
4000  * which will be used as a random sampling of PC */
4001 COMMAND_HANDLER(handle_profile_command)
4002 {
4003         struct target *target = get_current_target(CMD_CTX);
4004
4005         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
4006                 return ERROR_COMMAND_SYNTAX_ERROR;
4007
4008         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
4009         uint32_t offset;
4010         uint32_t num_of_samples;
4011         int retval = ERROR_OK;
4012
4013         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
4014
4015         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
4016         if (samples == NULL) {
4017                 LOG_ERROR("No memory to store samples.");
4018                 return ERROR_FAIL;
4019         }
4020
4021         uint64_t timestart_ms = timeval_ms();
4022         /**
4023          * Some cores let us sample the PC without the
4024          * annoying halt/resume step; for example, ARMv7 PCSR.
4025          * Provide a way to use that more efficient mechanism.
4026          */
4027         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
4028                                 &num_of_samples, offset);
4029         if (retval != ERROR_OK) {
4030                 free(samples);
4031                 return retval;
4032         }
4033         uint32_t duration_ms = timeval_ms() - timestart_ms;
4034
4035         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
4036
4037         retval = target_poll(target);
4038         if (retval != ERROR_OK) {
4039                 free(samples);
4040                 return retval;
4041         }
4042         if (target->state == TARGET_RUNNING) {
4043                 retval = target_halt(target);
4044                 if (retval != ERROR_OK) {
4045                         free(samples);
4046                         return retval;
4047                 }
4048         }
4049
4050         retval = target_poll(target);
4051         if (retval != ERROR_OK) {
4052                 free(samples);
4053                 return retval;
4054         }
4055
4056         uint32_t start_address = 0;
4057         uint32_t end_address = 0;
4058         bool with_range = false;
4059         if (CMD_ARGC == 4) {
4060                 with_range = true;
4061                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
4062                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
4063         }
4064
4065         write_gmon(samples, num_of_samples, CMD_ARGV[1],
4066                    with_range, start_address, end_address, target, duration_ms);
4067         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
4068
4069         free(samples);
4070         return retval;
4071 }
4072
4073 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
4074 {
4075         char *namebuf;
4076         Jim_Obj *nameObjPtr, *valObjPtr;
4077         int result;
4078
4079         namebuf = alloc_printf("%s(%d)", varname, idx);
4080         if (!namebuf)
4081                 return JIM_ERR;
4082
4083         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4084         valObjPtr = Jim_NewIntObj(interp, val);
4085         if (!nameObjPtr || !valObjPtr) {
4086                 free(namebuf);
4087                 return JIM_ERR;
4088         }
4089
4090         Jim_IncrRefCount(nameObjPtr);
4091         Jim_IncrRefCount(valObjPtr);
4092         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
4093         Jim_DecrRefCount(interp, nameObjPtr);
4094         Jim_DecrRefCount(interp, valObjPtr);
4095         free(namebuf);
4096         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
4097         return result;
4098 }
4099
4100 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4101 {
4102         struct command_context *context;
4103         struct target *target;
4104
4105         context = current_command_context(interp);
4106         assert(context != NULL);
4107
4108         target = get_current_target(context);
4109         if (target == NULL) {
4110                 LOG_ERROR("mem2array: no current target");
4111                 return JIM_ERR;
4112         }
4113
4114         return target_mem2array(interp, target, argc - 1, argv + 1);
4115 }
4116
4117 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
4118 {
4119         long l;
4120         uint32_t width;
4121         int len;
4122         uint32_t addr;
4123         uint32_t count;
4124         uint32_t v;
4125         const char *varname;
4126         const char *phys;
4127         bool is_phys;
4128         int  n, e, retval;
4129         uint32_t i;
4130
4131         /* argv[1] = name of array to receive the data
4132          * argv[2] = desired width
4133          * argv[3] = memory address
4134          * argv[4] = count of times to read
4135          */
4136
4137         if (argc < 4 || argc > 5) {
4138                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4139                 return JIM_ERR;
4140         }
4141         varname = Jim_GetString(argv[0], &len);
4142         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4143
4144         e = Jim_GetLong(interp, argv[1], &l);
4145         width = l;
4146         if (e != JIM_OK)
4147                 return e;
4148
4149         e = Jim_GetLong(interp, argv[2], &l);
4150         addr = l;
4151         if (e != JIM_OK)
4152                 return e;
4153         e = Jim_GetLong(interp, argv[3], &l);
4154         len = l;
4155         if (e != JIM_OK)
4156                 return e;
4157         is_phys = false;
4158         if (argc > 4) {
4159                 phys = Jim_GetString(argv[4], &n);
4160                 if (!strncmp(phys, "phys", n))
4161                         is_phys = true;
4162                 else
4163                         return JIM_ERR;
4164         }
4165         switch (width) {
4166                 case 8:
4167                         width = 1;
4168                         break;
4169                 case 16:
4170                         width = 2;
4171                         break;
4172                 case 32:
4173                         width = 4;
4174                         break;
4175                 default:
4176                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4177                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
4178                         return JIM_ERR;
4179         }
4180         if (len == 0) {
4181                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4182                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
4183                 return JIM_ERR;
4184         }
4185         if ((addr + (len * width)) < addr) {
4186                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4187                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
4188                 return JIM_ERR;
4189         }
4190         /* absurd transfer size? */
4191         if (len > 65536) {
4192                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4193                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
4194                 return JIM_ERR;
4195         }
4196
4197         if ((width == 1) ||
4198                 ((width == 2) && ((addr & 1) == 0)) ||
4199                 ((width == 4) && ((addr & 3) == 0))) {
4200                 /* all is well */
4201         } else {
4202                 char buf[100];
4203                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4204                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4205                                 addr,
4206                                 width);
4207                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4208                 return JIM_ERR;
4209         }
4210
4211         /* Transfer loop */
4212
4213         /* index counter */
4214         n = 0;
4215
4216         size_t buffersize = 4096;
4217         uint8_t *buffer = malloc(buffersize);
4218         if (buffer == NULL)
4219                 return JIM_ERR;
4220
4221         /* assume ok */
4222         e = JIM_OK;
4223         while (len) {
4224                 /* Slurp... in buffer size chunks */
4225
4226                 count = len; /* in objects.. */
4227                 if (count > (buffersize / width))
4228                         count = (buffersize / width);
4229
4230                 if (is_phys)
4231                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4232                 else
4233                         retval = target_read_memory(target, addr, width, count, buffer);
4234                 if (retval != ERROR_OK) {
4235                         /* BOO !*/
4236                         LOG_ERROR("mem2array: Read @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4237                                           addr,
4238                                           width,
4239                                           count);
4240                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4241                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4242                         e = JIM_ERR;
4243                         break;
4244                 } else {
4245                         v = 0; /* shut up gcc */
4246                         for (i = 0; i < count ; i++, n++) {
4247                                 switch (width) {
4248                                         case 4:
4249                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4250                                                 break;
4251                                         case 2:
4252                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4253                                                 break;
4254                                         case 1:
4255                                                 v = buffer[i] & 0x0ff;
4256                                                 break;
4257                                 }
4258                                 new_int_array_element(interp, varname, n, v);
4259                         }
4260                         len -= count;
4261                         addr += count * width;
4262                 }
4263         }
4264
4265         free(buffer);
4266
4267         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4268
4269         return e;
4270 }
4271
4272 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4273 {
4274         char *namebuf;
4275         Jim_Obj *nameObjPtr, *valObjPtr;
4276         int result;
4277         long l;
4278
4279         namebuf = alloc_printf("%s(%d)", varname, idx);
4280         if (!namebuf)
4281                 return JIM_ERR;
4282
4283         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4284         if (!nameObjPtr) {
4285                 free(namebuf);
4286                 return JIM_ERR;
4287         }
4288
4289         Jim_IncrRefCount(nameObjPtr);
4290         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4291         Jim_DecrRefCount(interp, nameObjPtr);
4292         free(namebuf);
4293         if (valObjPtr == NULL)
4294                 return JIM_ERR;
4295
4296         result = Jim_GetLong(interp, valObjPtr, &l);
4297         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4298         *val = l;
4299         return result;
4300 }
4301
4302 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4303 {
4304         struct command_context *context;
4305         struct target *target;
4306
4307         context = current_command_context(interp);
4308         assert(context != NULL);
4309
4310         target = get_current_target(context);
4311         if (target == NULL) {
4312                 LOG_ERROR("array2mem: no current target");
4313                 return JIM_ERR;
4314         }
4315
4316         return target_array2mem(interp, target, argc-1, argv + 1);
4317 }
4318
4319 static int target_array2mem(Jim_Interp *interp, struct target *target,
4320                 int argc, Jim_Obj *const *argv)
4321 {
4322         long l;
4323         uint32_t width;
4324         int len;
4325         uint32_t addr;
4326         uint32_t count;
4327         uint32_t v;
4328         const char *varname;
4329         const char *phys;
4330         bool is_phys;
4331         int  n, e, retval;
4332         uint32_t i;
4333
4334         /* argv[1] = name of array to get the data
4335          * argv[2] = desired width
4336          * argv[3] = memory address
4337          * argv[4] = count to write
4338          */
4339         if (argc < 4 || argc > 5) {
4340                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4341                 return JIM_ERR;
4342         }
4343         varname = Jim_GetString(argv[0], &len);
4344         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4345
4346         e = Jim_GetLong(interp, argv[1], &l);
4347         width = l;
4348         if (e != JIM_OK)
4349                 return e;
4350
4351         e = Jim_GetLong(interp, argv[2], &l);
4352         addr = l;
4353         if (e != JIM_OK)
4354                 return e;
4355         e = Jim_GetLong(interp, argv[3], &l);
4356         len = l;
4357         if (e != JIM_OK)
4358                 return e;
4359         is_phys = false;
4360         if (argc > 4) {
4361                 phys = Jim_GetString(argv[4], &n);
4362                 if (!strncmp(phys, "phys", n))
4363                         is_phys = true;
4364                 else
4365                         return JIM_ERR;
4366         }
4367         switch (width) {
4368                 case 8:
4369                         width = 1;
4370                         break;
4371                 case 16:
4372                         width = 2;
4373                         break;
4374                 case 32:
4375                         width = 4;
4376                         break;
4377                 default:
4378                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4379                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4380                                         "Invalid width param, must be 8/16/32", NULL);
4381                         return JIM_ERR;
4382         }
4383         if (len == 0) {
4384                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4385                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4386                                 "array2mem: zero width read?", NULL);
4387                 return JIM_ERR;
4388         }
4389         if ((addr + (len * width)) < addr) {
4390                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4391                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4392                                 "array2mem: addr + len - wraps to zero?", NULL);
4393                 return JIM_ERR;
4394         }
4395         /* absurd transfer size? */
4396         if (len > 65536) {
4397                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4398                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4399                                 "array2mem: absurd > 64K item request", NULL);
4400                 return JIM_ERR;
4401         }
4402
4403         if ((width == 1) ||
4404                 ((width == 2) && ((addr & 1) == 0)) ||
4405                 ((width == 4) && ((addr & 3) == 0))) {
4406                 /* all is well */
4407         } else {
4408                 char buf[100];
4409                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4410                 sprintf(buf, "array2mem address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4411                                 addr,
4412                                 width);
4413                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4414                 return JIM_ERR;
4415         }
4416
4417         /* Transfer loop */
4418
4419         /* index counter */
4420         n = 0;
4421         /* assume ok */
4422         e = JIM_OK;
4423
4424         size_t buffersize = 4096;
4425         uint8_t *buffer = malloc(buffersize);
4426         if (buffer == NULL)
4427                 return JIM_ERR;
4428
4429         while (len) {
4430                 /* Slurp... in buffer size chunks */
4431
4432                 count = len; /* in objects.. */
4433                 if (count > (buffersize / width))
4434                         count = (buffersize / width);
4435
4436                 v = 0; /* shut up gcc */
4437                 for (i = 0; i < count; i++, n++) {
4438                         get_int_array_element(interp, varname, n, &v);
4439                         switch (width) {
4440                         case 4:
4441                                 target_buffer_set_u32(target, &buffer[i * width], v);
4442                                 break;
4443                         case 2:
4444                                 target_buffer_set_u16(target, &buffer[i * width], v);
4445                                 break;
4446                         case 1:
4447                                 buffer[i] = v & 0x0ff;
4448                                 break;
4449                         }
4450                 }
4451                 len -= count;
4452
4453                 if (is_phys)
4454                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4455                 else
4456                         retval = target_write_memory(target, addr, width, count, buffer);
4457                 if (retval != ERROR_OK) {
4458                         /* BOO !*/
4459                         LOG_ERROR("array2mem: Write @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4460                                           addr,
4461                                           width,
4462                                           count);
4463                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4464                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4465                         e = JIM_ERR;
4466                         break;
4467                 }
4468                 addr += count * width;
4469         }
4470
4471         free(buffer);
4472
4473         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4474
4475         return e;
4476 }
4477
4478 /* FIX? should we propagate errors here rather than printing them
4479  * and continuing?
4480  */
4481 void target_handle_event(struct target *target, enum target_event e)
4482 {
4483         struct target_event_action *teap;
4484
4485         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4486                 if (teap->event == e) {
4487                         LOG_DEBUG("target(%d): %s (%s) event: %d (%s) action: %s",
4488                                            target->target_number,
4489                                            target_name(target),
4490                                            target_type_name(target),
4491                                            e,
4492                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4493                                            Jim_GetString(teap->body, NULL));
4494
4495                         /* Override current target by the target an event
4496                          * is issued from (lot of scripts need it).
4497                          * Return back to previous override as soon
4498                          * as the handler processing is done */
4499                         struct command_context *cmd_ctx = current_command_context(teap->interp);
4500                         struct target *saved_target_override = cmd_ctx->current_target_override;
4501                         cmd_ctx->current_target_override = target;
4502
4503                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4504                                 Jim_MakeErrorMessage(teap->interp);
4505                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4506                         }
4507
4508                         cmd_ctx->current_target_override = saved_target_override;
4509                 }
4510         }
4511 }
4512
4513 /**
4514  * Returns true only if the target has a handler for the specified event.
4515  */
4516 bool target_has_event_action(struct target *target, enum target_event event)
4517 {
4518         struct target_event_action *teap;
4519
4520         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4521                 if (teap->event == event)
4522                         return true;
4523         }
4524         return false;
4525 }
4526
4527 enum target_cfg_param {
4528         TCFG_TYPE,
4529         TCFG_EVENT,
4530         TCFG_WORK_AREA_VIRT,
4531         TCFG_WORK_AREA_PHYS,
4532         TCFG_WORK_AREA_SIZE,
4533         TCFG_WORK_AREA_BACKUP,
4534         TCFG_ENDIAN,
4535         TCFG_COREID,
4536         TCFG_CHAIN_POSITION,
4537         TCFG_DBGBASE,
4538         TCFG_RTOS,
4539         TCFG_DEFER_EXAMINE,
4540 };
4541
4542 static Jim_Nvp nvp_config_opts[] = {
4543         { .name = "-type",             .value = TCFG_TYPE },
4544         { .name = "-event",            .value = TCFG_EVENT },
4545         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4546         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4547         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4548         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4549         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4550         { .name = "-coreid",           .value = TCFG_COREID },
4551         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4552         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4553         { .name = "-rtos",             .value = TCFG_RTOS },
4554         { .name = "-defer-examine",    .value = TCFG_DEFER_EXAMINE },
4555         { .name = NULL, .value = -1 }
4556 };
4557
4558 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4559 {
4560         Jim_Nvp *n;
4561         Jim_Obj *o;
4562         jim_wide w;
4563         int e;
4564
4565         /* parse config or cget options ... */
4566         while (goi->argc > 0) {
4567                 Jim_SetEmptyResult(goi->interp);
4568                 /* Jim_GetOpt_Debug(goi); */
4569
4570                 if (target->type->target_jim_configure) {
4571                         /* target defines a configure function */
4572                         /* target gets first dibs on parameters */
4573                         e = (*(target->type->target_jim_configure))(target, goi);
4574                         if (e == JIM_OK) {
4575                                 /* more? */
4576                                 continue;
4577                         }
4578                         if (e == JIM_ERR) {
4579                                 /* An error */
4580                                 return e;
4581                         }
4582                         /* otherwise we 'continue' below */
4583                 }
4584                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4585                 if (e != JIM_OK) {
4586                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4587                         return e;
4588                 }
4589                 switch (n->value) {
4590                 case TCFG_TYPE:
4591                         /* not setable */
4592                         if (goi->isconfigure) {
4593                                 Jim_SetResultFormatted(goi->interp,
4594                                                 "not settable: %s", n->name);
4595                                 return JIM_ERR;
4596                         } else {
4597 no_params:
4598                                 if (goi->argc != 0) {
4599                                         Jim_WrongNumArgs(goi->interp,
4600                                                         goi->argc, goi->argv,
4601                                                         "NO PARAMS");
4602                                         return JIM_ERR;
4603                                 }
4604                         }
4605                         Jim_SetResultString(goi->interp,
4606                                         target_type_name(target), -1);
4607                         /* loop for more */
4608                         break;
4609                 case TCFG_EVENT:
4610                         if (goi->argc == 0) {
4611                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4612                                 return JIM_ERR;
4613                         }
4614
4615                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4616                         if (e != JIM_OK) {
4617                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4618                                 return e;
4619                         }
4620
4621                         if (goi->isconfigure) {
4622                                 if (goi->argc != 1) {
4623                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4624                                         return JIM_ERR;
4625                                 }
4626                         } else {
4627                                 if (goi->argc != 0) {
4628                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4629                                         return JIM_ERR;
4630                                 }
4631                         }
4632
4633                         {
4634                                 struct target_event_action *teap;
4635
4636                                 teap = target->event_action;
4637                                 /* replace existing? */
4638                                 while (teap) {
4639                                         if (teap->event == (enum target_event)n->value)
4640                                                 break;
4641                                         teap = teap->next;
4642                                 }
4643
4644                                 if (goi->isconfigure) {
4645                                         bool replace = true;
4646                                         if (teap == NULL) {
4647                                                 /* create new */
4648                                                 teap = calloc(1, sizeof(*teap));
4649                                                 replace = false;
4650                                         }
4651                                         teap->event = n->value;
4652                                         teap->interp = goi->interp;
4653                                         Jim_GetOpt_Obj(goi, &o);
4654                                         if (teap->body)
4655                                                 Jim_DecrRefCount(teap->interp, teap->body);
4656                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4657                                         /*
4658                                          * FIXME:
4659                                          *     Tcl/TK - "tk events" have a nice feature.
4660                                          *     See the "BIND" command.
4661                                          *    We should support that here.
4662                                          *     You can specify %X and %Y in the event code.
4663                                          *     The idea is: %T - target name.
4664                                          *     The idea is: %N - target number
4665                                          *     The idea is: %E - event name.
4666                                          */
4667                                         Jim_IncrRefCount(teap->body);
4668
4669                                         if (!replace) {
4670                                                 /* add to head of event list */
4671                                                 teap->next = target->event_action;
4672                                                 target->event_action = teap;
4673                                         }
4674                                         Jim_SetEmptyResult(goi->interp);
4675                                 } else {
4676                                         /* get */
4677                                         if (teap == NULL)
4678                                                 Jim_SetEmptyResult(goi->interp);
4679                                         else
4680                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4681                                 }
4682                         }
4683                         /* loop for more */
4684                         break;
4685
4686                 case TCFG_WORK_AREA_VIRT:
4687                         if (goi->isconfigure) {
4688                                 target_free_all_working_areas(target);
4689                                 e = Jim_GetOpt_Wide(goi, &w);
4690                                 if (e != JIM_OK)
4691                                         return e;
4692                                 target->working_area_virt = w;
4693                                 target->working_area_virt_spec = true;
4694                         } else {
4695                                 if (goi->argc != 0)
4696                                         goto no_params;
4697                         }
4698                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4699                         /* loop for more */
4700                         break;
4701
4702                 case TCFG_WORK_AREA_PHYS:
4703                         if (goi->isconfigure) {
4704                                 target_free_all_working_areas(target);
4705                                 e = Jim_GetOpt_Wide(goi, &w);
4706                                 if (e != JIM_OK)
4707                                         return e;
4708                                 target->working_area_phys = w;
4709                                 target->working_area_phys_spec = true;
4710                         } else {
4711                                 if (goi->argc != 0)
4712                                         goto no_params;
4713                         }
4714                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4715                         /* loop for more */
4716                         break;
4717
4718                 case TCFG_WORK_AREA_SIZE:
4719                         if (goi->isconfigure) {
4720                                 target_free_all_working_areas(target);
4721                                 e = Jim_GetOpt_Wide(goi, &w);
4722                                 if (e != JIM_OK)
4723                                         return e;
4724                                 target->working_area_size = 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_WORK_AREA_BACKUP:
4734                         if (goi->isconfigure) {
4735                                 target_free_all_working_areas(target);
4736                                 e = Jim_GetOpt_Wide(goi, &w);
4737                                 if (e != JIM_OK)
4738                                         return e;
4739                                 /* make this exactly 1 or 0 */
4740                                 target->backup_working_area = (!!w);
4741                         } else {
4742                                 if (goi->argc != 0)
4743                                         goto no_params;
4744                         }
4745                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4746                         /* loop for more e*/
4747                         break;
4748
4749
4750                 case TCFG_ENDIAN:
4751                         if (goi->isconfigure) {
4752                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4753                                 if (e != JIM_OK) {
4754                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4755                                         return e;
4756                                 }
4757                                 target->endianness = n->value;
4758                         } else {
4759                                 if (goi->argc != 0)
4760                                         goto no_params;
4761                         }
4762                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4763                         if (n->name == NULL) {
4764                                 target->endianness = TARGET_LITTLE_ENDIAN;
4765                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4766                         }
4767                         Jim_SetResultString(goi->interp, n->name, -1);
4768                         /* loop for more */
4769                         break;
4770
4771                 case TCFG_COREID:
4772                         if (goi->isconfigure) {
4773                                 e = Jim_GetOpt_Wide(goi, &w);
4774                                 if (e != JIM_OK)
4775                                         return e;
4776                                 target->coreid = (int32_t)w;
4777                         } else {
4778                                 if (goi->argc != 0)
4779                                         goto no_params;
4780                         }
4781                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4782                         /* loop for more */
4783                         break;
4784
4785                 case TCFG_CHAIN_POSITION:
4786                         if (goi->isconfigure) {
4787                                 Jim_Obj *o_t;
4788                                 struct jtag_tap *tap;
4789
4790                                 if (target->has_dap) {
4791                                         Jim_SetResultString(goi->interp,
4792                                                 "target requires -dap parameter instead of -chain-position!", -1);
4793                                         return JIM_ERR;
4794                                 }
4795
4796                                 target_free_all_working_areas(target);
4797                                 e = Jim_GetOpt_Obj(goi, &o_t);
4798                                 if (e != JIM_OK)
4799                                         return e;
4800                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4801                                 if (tap == NULL)
4802                                         return JIM_ERR;
4803                                 target->tap = tap;
4804                                 target->tap_configured = true;
4805                         } else {
4806                                 if (goi->argc != 0)
4807                                         goto no_params;
4808                         }
4809                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4810                         /* loop for more e*/
4811                         break;
4812                 case TCFG_DBGBASE:
4813                         if (goi->isconfigure) {
4814                                 e = Jim_GetOpt_Wide(goi, &w);
4815                                 if (e != JIM_OK)
4816                                         return e;
4817                                 target->dbgbase = (uint32_t)w;
4818                                 target->dbgbase_set = true;
4819                         } else {
4820                                 if (goi->argc != 0)
4821                                         goto no_params;
4822                         }
4823                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4824                         /* loop for more */
4825                         break;
4826                 case TCFG_RTOS:
4827                         /* RTOS */
4828                         {
4829                                 int result = rtos_create(goi, target);
4830                                 if (result != JIM_OK)
4831                                         return result;
4832                         }
4833                         /* loop for more */
4834                         break;
4835
4836                 case TCFG_DEFER_EXAMINE:
4837                         /* DEFER_EXAMINE */
4838                         target->defer_examine = true;
4839                         /* loop for more */
4840                         break;
4841
4842                 }
4843         } /* while (goi->argc) */
4844
4845
4846                 /* done - we return */
4847         return JIM_OK;
4848 }
4849
4850 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4851 {
4852         Jim_GetOptInfo goi;
4853
4854         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4855         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4856         if (goi.argc < 1) {
4857                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4858                                  "missing: -option ...");
4859                 return JIM_ERR;
4860         }
4861         struct target *target = Jim_CmdPrivData(goi.interp);
4862         return target_configure(&goi, target);
4863 }
4864
4865 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4866 {
4867         const char *cmd_name = Jim_GetString(argv[0], NULL);
4868
4869         Jim_GetOptInfo goi;
4870         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4871
4872         if (goi.argc < 2 || goi.argc > 4) {
4873                 Jim_SetResultFormatted(goi.interp,
4874                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4875                 return JIM_ERR;
4876         }
4877
4878         target_write_fn fn;
4879         fn = target_write_memory;
4880
4881         int e;
4882         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4883                 /* consume it */
4884                 struct Jim_Obj *obj;
4885                 e = Jim_GetOpt_Obj(&goi, &obj);
4886                 if (e != JIM_OK)
4887                         return e;
4888
4889                 fn = target_write_phys_memory;
4890         }
4891
4892         jim_wide a;
4893         e = Jim_GetOpt_Wide(&goi, &a);
4894         if (e != JIM_OK)
4895                 return e;
4896
4897         jim_wide b;
4898         e = Jim_GetOpt_Wide(&goi, &b);
4899         if (e != JIM_OK)
4900                 return e;
4901
4902         jim_wide c = 1;
4903         if (goi.argc == 1) {
4904                 e = Jim_GetOpt_Wide(&goi, &c);
4905                 if (e != JIM_OK)
4906                         return e;
4907         }
4908
4909         /* all args must be consumed */
4910         if (goi.argc != 0)
4911                 return JIM_ERR;
4912
4913         struct target *target = Jim_CmdPrivData(goi.interp);
4914         unsigned data_size;
4915         if (strcasecmp(cmd_name, "mww") == 0)
4916                 data_size = 4;
4917         else if (strcasecmp(cmd_name, "mwh") == 0)
4918                 data_size = 2;
4919         else if (strcasecmp(cmd_name, "mwb") == 0)
4920                 data_size = 1;
4921         else {
4922                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4923                 return JIM_ERR;
4924         }
4925
4926         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4927 }
4928
4929 /**
4930 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4931 *
4932 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4933 *         mdh [phys] <address> [<count>] - for 16 bit reads
4934 *         mdb [phys] <address> [<count>] - for  8 bit reads
4935 *
4936 *  Count defaults to 1.
4937 *
4938 *  Calls target_read_memory or target_read_phys_memory depending on
4939 *  the presence of the "phys" argument
4940 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4941 *  to int representation in base16.
4942 *  Also outputs read data in a human readable form using command_print
4943 *
4944 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4945 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4946 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4947 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4948 *  on success, with [<count>] number of elements.
4949 *
4950 *  In case of little endian target:
4951 *      Example1: "mdw 0x00000000"  returns "10123456"
4952 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4953 *      Example3: "mdb 0x00000000" returns "56"
4954 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4955 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4956 **/
4957 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4958 {
4959         const char *cmd_name = Jim_GetString(argv[0], NULL);
4960
4961         Jim_GetOptInfo goi;
4962         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4963
4964         if ((goi.argc < 1) || (goi.argc > 3)) {
4965                 Jim_SetResultFormatted(goi.interp,
4966                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4967                 return JIM_ERR;
4968         }
4969
4970         int (*fn)(struct target *target,
4971                         target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4972         fn = target_read_memory;
4973
4974         int e;
4975         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4976                 /* consume it */
4977                 struct Jim_Obj *obj;
4978                 e = Jim_GetOpt_Obj(&goi, &obj);
4979                 if (e != JIM_OK)
4980                         return e;
4981
4982                 fn = target_read_phys_memory;
4983         }
4984
4985         /* Read address parameter */
4986         jim_wide addr;
4987         e = Jim_GetOpt_Wide(&goi, &addr);
4988         if (e != JIM_OK)
4989                 return JIM_ERR;
4990
4991         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4992         jim_wide count;
4993         if (goi.argc == 1) {
4994                 e = Jim_GetOpt_Wide(&goi, &count);
4995                 if (e != JIM_OK)
4996                         return JIM_ERR;
4997         } else
4998                 count = 1;
4999
5000         /* all args must be consumed */
5001         if (goi.argc != 0)
5002                 return JIM_ERR;
5003
5004         jim_wide dwidth = 1; /* shut up gcc */
5005         if (strcasecmp(cmd_name, "mdw") == 0)
5006                 dwidth = 4;
5007         else if (strcasecmp(cmd_name, "mdh") == 0)
5008                 dwidth = 2;
5009         else if (strcasecmp(cmd_name, "mdb") == 0)
5010                 dwidth = 1;
5011         else {
5012                 LOG_ERROR("command '%s' unknown: ", cmd_name);
5013                 return JIM_ERR;
5014         }
5015
5016         /* convert count to "bytes" */
5017         int bytes = count * dwidth;
5018
5019         struct target *target = Jim_CmdPrivData(goi.interp);
5020         uint8_t  target_buf[32];
5021         jim_wide x, y, z;
5022         while (bytes > 0) {
5023                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
5024
5025                 /* Try to read out next block */
5026                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
5027
5028                 if (e != ERROR_OK) {
5029                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
5030                         return JIM_ERR;
5031                 }
5032
5033                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
5034                 switch (dwidth) {
5035                 case 4:
5036                         for (x = 0; x < 16 && x < y; x += 4) {
5037                                 z = target_buffer_get_u32(target, &(target_buf[x]));
5038                                 command_print_sameline(NULL, "%08x ", (int)(z));
5039                         }
5040                         for (; (x < 16) ; x += 4)
5041                                 command_print_sameline(NULL, "         ");
5042                         break;
5043                 case 2:
5044                         for (x = 0; x < 16 && x < y; x += 2) {
5045                                 z = target_buffer_get_u16(target, &(target_buf[x]));
5046                                 command_print_sameline(NULL, "%04x ", (int)(z));
5047                         }
5048                         for (; (x < 16) ; x += 2)
5049                                 command_print_sameline(NULL, "     ");
5050                         break;
5051                 case 1:
5052                 default:
5053                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
5054                                 z = target_buffer_get_u8(target, &(target_buf[x]));
5055                                 command_print_sameline(NULL, "%02x ", (int)(z));
5056                         }
5057                         for (; (x < 16) ; x += 1)
5058                                 command_print_sameline(NULL, "   ");
5059                         break;
5060                 }
5061                 /* ascii-ify the bytes */
5062                 for (x = 0 ; x < y ; x++) {
5063                         if ((target_buf[x] >= 0x20) &&
5064                                 (target_buf[x] <= 0x7e)) {
5065                                 /* good */
5066                         } else {
5067                                 /* smack it */
5068                                 target_buf[x] = '.';
5069                         }
5070                 }
5071                 /* space pad  */
5072                 while (x < 16) {
5073                         target_buf[x] = ' ';
5074                         x++;
5075                 }
5076                 /* terminate */
5077                 target_buf[16] = 0;
5078                 /* print - with a newline */
5079                 command_print_sameline(NULL, "%s\n", target_buf);
5080                 /* NEXT... */
5081                 bytes -= 16;
5082                 addr += 16;
5083         }
5084         return JIM_OK;
5085 }
5086
5087 static int jim_target_mem2array(Jim_Interp *interp,
5088                 int argc, Jim_Obj *const *argv)
5089 {
5090         struct target *target = Jim_CmdPrivData(interp);
5091         return target_mem2array(interp, target, argc - 1, argv + 1);
5092 }
5093
5094 static int jim_target_array2mem(Jim_Interp *interp,
5095                 int argc, Jim_Obj *const *argv)
5096 {
5097         struct target *target = Jim_CmdPrivData(interp);
5098         return target_array2mem(interp, target, argc - 1, argv + 1);
5099 }
5100
5101 static int jim_target_tap_disabled(Jim_Interp *interp)
5102 {
5103         Jim_SetResultFormatted(interp, "[TAP is disabled]");
5104         return JIM_ERR;
5105 }
5106
5107 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5108 {
5109         bool allow_defer = false;
5110
5111         Jim_GetOptInfo goi;
5112         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5113         if (goi.argc > 1) {
5114                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5115                 Jim_SetResultFormatted(goi.interp,
5116                                 "usage: %s ['allow-defer']", cmd_name);
5117                 return JIM_ERR;
5118         }
5119         if (goi.argc > 0 &&
5120             strcmp(Jim_GetString(argv[1], NULL), "allow-defer") == 0) {
5121                 /* consume it */
5122                 struct Jim_Obj *obj;
5123                 int e = Jim_GetOpt_Obj(&goi, &obj);
5124                 if (e != JIM_OK)
5125                         return e;
5126                 allow_defer = true;
5127         }
5128
5129         struct target *target = Jim_CmdPrivData(interp);
5130         if (!target->tap->enabled)
5131                 return jim_target_tap_disabled(interp);
5132
5133         if (allow_defer && target->defer_examine) {
5134                 LOG_INFO("Deferring arp_examine of %s", target_name(target));
5135                 LOG_INFO("Use arp_examine command to examine it manually!");
5136                 return JIM_OK;
5137         }
5138
5139         int e = target->type->examine(target);
5140         if (e != ERROR_OK)
5141                 return JIM_ERR;
5142         return JIM_OK;
5143 }
5144
5145 static int jim_target_was_examined(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5146 {
5147         struct target *target = Jim_CmdPrivData(interp);
5148
5149         Jim_SetResultBool(interp, target_was_examined(target));
5150         return JIM_OK;
5151 }
5152
5153 static int jim_target_examine_deferred(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5154 {
5155         struct target *target = Jim_CmdPrivData(interp);
5156
5157         Jim_SetResultBool(interp, target->defer_examine);
5158         return JIM_OK;
5159 }
5160
5161 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5162 {
5163         if (argc != 1) {
5164                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5165                 return JIM_ERR;
5166         }
5167         struct target *target = Jim_CmdPrivData(interp);
5168
5169         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
5170                 return JIM_ERR;
5171
5172         return JIM_OK;
5173 }
5174
5175 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5176 {
5177         if (argc != 1) {
5178                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5179                 return JIM_ERR;
5180         }
5181         struct target *target = Jim_CmdPrivData(interp);
5182         if (!target->tap->enabled)
5183                 return jim_target_tap_disabled(interp);
5184
5185         int e;
5186         if (!(target_was_examined(target)))
5187                 e = ERROR_TARGET_NOT_EXAMINED;
5188         else
5189                 e = target->type->poll(target);
5190         if (e != ERROR_OK)
5191                 return JIM_ERR;
5192         return JIM_OK;
5193 }
5194
5195 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5196 {
5197         Jim_GetOptInfo goi;
5198         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5199
5200         if (goi.argc != 2) {
5201                 Jim_WrongNumArgs(interp, 0, argv,
5202                                 "([tT]|[fF]|assert|deassert) BOOL");
5203                 return JIM_ERR;
5204         }
5205
5206         Jim_Nvp *n;
5207         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
5208         if (e != JIM_OK) {
5209                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
5210                 return e;
5211         }
5212         /* the halt or not param */
5213         jim_wide a;
5214         e = Jim_GetOpt_Wide(&goi, &a);
5215         if (e != JIM_OK)
5216                 return e;
5217
5218         struct target *target = Jim_CmdPrivData(goi.interp);
5219         if (!target->tap->enabled)
5220                 return jim_target_tap_disabled(interp);
5221
5222         if (!target->type->assert_reset || !target->type->deassert_reset) {
5223                 Jim_SetResultFormatted(interp,
5224                                 "No target-specific reset for %s",
5225                                 target_name(target));
5226                 return JIM_ERR;
5227         }
5228
5229         if (target->defer_examine)
5230                 target_reset_examined(target);
5231
5232         /* determine if we should halt or not. */
5233         target->reset_halt = !!a;
5234         /* When this happens - all workareas are invalid. */
5235         target_free_all_working_areas_restore(target, 0);
5236
5237         /* do the assert */
5238         if (n->value == NVP_ASSERT)
5239                 e = target->type->assert_reset(target);
5240         else
5241                 e = target->type->deassert_reset(target);
5242         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5243 }
5244
5245 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5246 {
5247         if (argc != 1) {
5248                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5249                 return JIM_ERR;
5250         }
5251         struct target *target = Jim_CmdPrivData(interp);
5252         if (!target->tap->enabled)
5253                 return jim_target_tap_disabled(interp);
5254         int e = target->type->halt(target);
5255         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5256 }
5257
5258 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5259 {
5260         Jim_GetOptInfo goi;
5261         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5262
5263         /* params:  <name>  statename timeoutmsecs */
5264         if (goi.argc != 2) {
5265                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5266                 Jim_SetResultFormatted(goi.interp,
5267                                 "%s <state_name> <timeout_in_msec>", cmd_name);
5268                 return JIM_ERR;
5269         }
5270
5271         Jim_Nvp *n;
5272         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
5273         if (e != JIM_OK) {
5274                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
5275                 return e;
5276         }
5277         jim_wide a;
5278         e = Jim_GetOpt_Wide(&goi, &a);
5279         if (e != JIM_OK)
5280                 return e;
5281         struct target *target = Jim_CmdPrivData(interp);
5282         if (!target->tap->enabled)
5283                 return jim_target_tap_disabled(interp);
5284
5285         e = target_wait_state(target, n->value, a);
5286         if (e != ERROR_OK) {
5287                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5288                 Jim_SetResultFormatted(goi.interp,
5289                                 "target: %s wait %s fails (%#s) %s",
5290                                 target_name(target), n->name,
5291                                 eObj, target_strerror_safe(e));
5292                 Jim_FreeNewObj(interp, eObj);
5293                 return JIM_ERR;
5294         }
5295         return JIM_OK;
5296 }
5297 /* List for human, Events defined for this target.
5298  * scripts/programs should use 'name cget -event NAME'
5299  */
5300 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5301 {
5302         struct command_context *cmd_ctx = current_command_context(interp);
5303         assert(cmd_ctx != NULL);
5304
5305         struct target *target = Jim_CmdPrivData(interp);
5306         struct target_event_action *teap = target->event_action;
5307         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5308                                    target->target_number,
5309                                    target_name(target));
5310         command_print(cmd_ctx, "%-25s | Body", "Event");
5311         command_print(cmd_ctx, "------------------------- | "
5312                         "----------------------------------------");
5313         while (teap) {
5314                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5315                 command_print(cmd_ctx, "%-25s | %s",
5316                                 opt->name, Jim_GetString(teap->body, NULL));
5317                 teap = teap->next;
5318         }
5319         command_print(cmd_ctx, "***END***");
5320         return JIM_OK;
5321 }
5322 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5323 {
5324         if (argc != 1) {
5325                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5326                 return JIM_ERR;
5327         }
5328         struct target *target = Jim_CmdPrivData(interp);
5329         Jim_SetResultString(interp, target_state_name(target), -1);
5330         return JIM_OK;
5331 }
5332 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5333 {
5334         Jim_GetOptInfo goi;
5335         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5336         if (goi.argc != 1) {
5337                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5338                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5339                 return JIM_ERR;
5340         }
5341         Jim_Nvp *n;
5342         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5343         if (e != JIM_OK) {
5344                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5345                 return e;
5346         }
5347         struct target *target = Jim_CmdPrivData(interp);
5348         target_handle_event(target, n->value);
5349         return JIM_OK;
5350 }
5351
5352 static const struct command_registration target_instance_command_handlers[] = {
5353         {
5354                 .name = "configure",
5355                 .mode = COMMAND_CONFIG,
5356                 .jim_handler = jim_target_configure,
5357                 .help  = "configure a new target for use",
5358                 .usage = "[target_attribute ...]",
5359         },
5360         {
5361                 .name = "cget",
5362                 .mode = COMMAND_ANY,
5363                 .jim_handler = jim_target_configure,
5364                 .help  = "returns the specified target attribute",
5365                 .usage = "target_attribute",
5366         },
5367         {
5368                 .name = "mww",
5369                 .mode = COMMAND_EXEC,
5370                 .jim_handler = jim_target_mw,
5371                 .help = "Write 32-bit word(s) to target memory",
5372                 .usage = "address data [count]",
5373         },
5374         {
5375                 .name = "mwh",
5376                 .mode = COMMAND_EXEC,
5377                 .jim_handler = jim_target_mw,
5378                 .help = "Write 16-bit half-word(s) to target memory",
5379                 .usage = "address data [count]",
5380         },
5381         {
5382                 .name = "mwb",
5383                 .mode = COMMAND_EXEC,
5384                 .jim_handler = jim_target_mw,
5385                 .help = "Write byte(s) to target memory",
5386                 .usage = "address data [count]",
5387         },
5388         {
5389                 .name = "mdw",
5390                 .mode = COMMAND_EXEC,
5391                 .jim_handler = jim_target_md,
5392                 .help = "Display target memory as 32-bit words",
5393                 .usage = "address [count]",
5394         },
5395         {
5396                 .name = "mdh",
5397                 .mode = COMMAND_EXEC,
5398                 .jim_handler = jim_target_md,
5399                 .help = "Display target memory as 16-bit half-words",
5400                 .usage = "address [count]",
5401         },
5402         {
5403                 .name = "mdb",
5404                 .mode = COMMAND_EXEC,
5405                 .jim_handler = jim_target_md,
5406                 .help = "Display target memory as 8-bit bytes",
5407                 .usage = "address [count]",
5408         },
5409         {
5410                 .name = "array2mem",
5411                 .mode = COMMAND_EXEC,
5412                 .jim_handler = jim_target_array2mem,
5413                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5414                         "to target memory",
5415                 .usage = "arrayname bitwidth address count",
5416         },
5417         {
5418                 .name = "mem2array",
5419                 .mode = COMMAND_EXEC,
5420                 .jim_handler = jim_target_mem2array,
5421                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5422                         "from target memory",
5423                 .usage = "arrayname bitwidth address count",
5424         },
5425         {
5426                 .name = "eventlist",
5427                 .mode = COMMAND_EXEC,
5428                 .jim_handler = jim_target_event_list,
5429                 .help = "displays a table of events defined for this target",
5430         },
5431         {
5432                 .name = "curstate",
5433                 .mode = COMMAND_EXEC,
5434                 .jim_handler = jim_target_current_state,
5435                 .help = "displays the current state of this target",
5436         },
5437         {
5438                 .name = "arp_examine",
5439                 .mode = COMMAND_EXEC,
5440                 .jim_handler = jim_target_examine,
5441                 .help = "used internally for reset processing",
5442                 .usage = "['allow-defer']",
5443         },
5444         {
5445                 .name = "was_examined",
5446                 .mode = COMMAND_EXEC,
5447                 .jim_handler = jim_target_was_examined,
5448                 .help = "used internally for reset processing",
5449         },
5450         {
5451                 .name = "examine_deferred",
5452                 .mode = COMMAND_EXEC,
5453                 .jim_handler = jim_target_examine_deferred,
5454                 .help = "used internally for reset processing",
5455         },
5456         {
5457                 .name = "arp_halt_gdb",
5458                 .mode = COMMAND_EXEC,
5459                 .jim_handler = jim_target_halt_gdb,
5460                 .help = "used internally for reset processing to halt GDB",
5461         },
5462         {
5463                 .name = "arp_poll",
5464                 .mode = COMMAND_EXEC,
5465                 .jim_handler = jim_target_poll,
5466                 .help = "used internally for reset processing",
5467         },
5468         {
5469                 .name = "arp_reset",
5470                 .mode = COMMAND_EXEC,
5471                 .jim_handler = jim_target_reset,
5472                 .help = "used internally for reset processing",
5473         },
5474         {
5475                 .name = "arp_halt",
5476                 .mode = COMMAND_EXEC,
5477                 .jim_handler = jim_target_halt,
5478                 .help = "used internally for reset processing",
5479         },
5480         {
5481                 .name = "arp_waitstate",
5482                 .mode = COMMAND_EXEC,
5483                 .jim_handler = jim_target_wait_state,
5484                 .help = "used internally for reset processing",
5485         },
5486         {
5487                 .name = "invoke-event",
5488                 .mode = COMMAND_EXEC,
5489                 .jim_handler = jim_target_invoke_event,
5490                 .help = "invoke handler for specified event",
5491                 .usage = "event_name",
5492         },
5493         COMMAND_REGISTRATION_DONE
5494 };
5495
5496 static int target_create(Jim_GetOptInfo *goi)
5497 {
5498         Jim_Obj *new_cmd;
5499         Jim_Cmd *cmd;
5500         const char *cp;
5501         int e;
5502         int x;
5503         struct target *target;
5504         struct command_context *cmd_ctx;
5505
5506         cmd_ctx = current_command_context(goi->interp);
5507         assert(cmd_ctx != NULL);
5508
5509         if (goi->argc < 3) {
5510                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5511                 return JIM_ERR;
5512         }
5513
5514         /* COMMAND */
5515         Jim_GetOpt_Obj(goi, &new_cmd);
5516         /* does this command exist? */
5517         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5518         if (cmd) {
5519                 cp = Jim_GetString(new_cmd, NULL);
5520                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5521                 return JIM_ERR;
5522         }
5523
5524         /* TYPE */
5525         e = Jim_GetOpt_String(goi, &cp, NULL);
5526         if (e != JIM_OK)
5527                 return e;
5528         struct transport *tr = get_current_transport();
5529         if (tr->override_target) {
5530                 e = tr->override_target(&cp);
5531                 if (e != ERROR_OK) {
5532                         LOG_ERROR("The selected transport doesn't support this target");
5533                         return JIM_ERR;
5534                 }
5535                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5536         }
5537         /* now does target type exist */
5538         for (x = 0 ; target_types[x] ; x++) {
5539                 if (0 == strcmp(cp, target_types[x]->name)) {
5540                         /* found */
5541                         break;
5542                 }
5543
5544                 /* check for deprecated name */
5545                 if (target_types[x]->deprecated_name) {
5546                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5547                                 /* found */
5548                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5549                                 break;
5550                         }
5551                 }
5552         }
5553         if (target_types[x] == NULL) {
5554                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5555                 for (x = 0 ; target_types[x] ; x++) {
5556                         if (target_types[x + 1]) {
5557                                 Jim_AppendStrings(goi->interp,
5558                                                                    Jim_GetResult(goi->interp),
5559                                                                    target_types[x]->name,
5560                                                                    ", ", NULL);
5561                         } else {
5562                                 Jim_AppendStrings(goi->interp,
5563                                                                    Jim_GetResult(goi->interp),
5564                                                                    " or ",
5565                                                                    target_types[x]->name, NULL);
5566                         }
5567                 }
5568                 return JIM_ERR;
5569         }
5570
5571         /* Create it */
5572         target = calloc(1, sizeof(struct target));
5573         /* set target number */
5574         target->target_number = new_target_number();
5575         cmd_ctx->current_target = target;
5576
5577         /* allocate memory for each unique target type */
5578         target->type = calloc(1, sizeof(struct target_type));
5579
5580         memcpy(target->type, target_types[x], sizeof(struct target_type));
5581
5582         /* will be set by "-endian" */
5583         target->endianness = TARGET_ENDIAN_UNKNOWN;
5584
5585         /* default to first core, override with -coreid */
5586         target->coreid = 0;
5587
5588         target->working_area        = 0x0;
5589         target->working_area_size   = 0x0;
5590         target->working_areas       = NULL;
5591         target->backup_working_area = 0;
5592
5593         target->state               = TARGET_UNKNOWN;
5594         target->debug_reason        = DBG_REASON_UNDEFINED;
5595         target->reg_cache           = NULL;
5596         target->breakpoints         = NULL;
5597         target->watchpoints         = NULL;
5598         target->next                = NULL;
5599         target->arch_info           = NULL;
5600
5601         target->verbose_halt_msg        = true;
5602
5603         target->halt_issued                     = false;
5604
5605         /* initialize trace information */
5606         target->trace_info = calloc(1, sizeof(struct trace));
5607
5608         target->dbgmsg          = NULL;
5609         target->dbg_msg_enabled = 0;
5610
5611         target->endianness = TARGET_ENDIAN_UNKNOWN;
5612
5613         target->rtos = NULL;
5614         target->rtos_auto_detect = false;
5615
5616         /* Do the rest as "configure" options */
5617         goi->isconfigure = 1;
5618         e = target_configure(goi, target);
5619
5620         if (e == JIM_OK) {
5621                 if (target->has_dap) {
5622                         if (!target->dap_configured) {
5623                                 Jim_SetResultString(goi->interp, "-dap ?name? required when creating target", -1);
5624                                 e = JIM_ERR;
5625                         }
5626                 } else {
5627                         if (!target->tap_configured) {
5628                                 Jim_SetResultString(goi->interp, "-chain-position ?name? required when creating target", -1);
5629                                 e = JIM_ERR;
5630                         }
5631                 }
5632                 /* tap must be set after target was configured */
5633                 if (target->tap == NULL)
5634                         e = JIM_ERR;
5635         }
5636
5637         if (e != JIM_OK) {
5638                 free(target->type);
5639                 free(target);
5640                 return e;
5641         }
5642
5643         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5644                 /* default endian to little if not specified */
5645                 target->endianness = TARGET_LITTLE_ENDIAN;
5646         }
5647
5648         cp = Jim_GetString(new_cmd, NULL);
5649         target->cmd_name = strdup(cp);
5650
5651         if (target->type->target_create) {
5652                 e = (*(target->type->target_create))(target, goi->interp);
5653                 if (e != ERROR_OK) {
5654                         LOG_DEBUG("target_create failed");
5655                         free(target->type);
5656                         free(target->cmd_name);
5657                         free(target);
5658                         return JIM_ERR;
5659                 }
5660         }
5661
5662         /* create the target specific commands */
5663         if (target->type->commands) {
5664                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5665                 if (ERROR_OK != e)
5666                         LOG_ERROR("unable to register '%s' commands", cp);
5667         }
5668
5669         /* append to end of list */
5670         {
5671                 struct target **tpp;
5672                 tpp = &(all_targets);
5673                 while (*tpp)
5674                         tpp = &((*tpp)->next);
5675                 *tpp = target;
5676         }
5677
5678         /* now - create the new target name command */
5679         const struct command_registration target_subcommands[] = {
5680                 {
5681                         .chain = target_instance_command_handlers,
5682                 },
5683                 {
5684                         .chain = target->type->commands,
5685                 },
5686                 COMMAND_REGISTRATION_DONE
5687         };
5688         const struct command_registration target_commands[] = {
5689                 {
5690                         .name = cp,
5691                         .mode = COMMAND_ANY,
5692                         .help = "target command group",
5693                         .usage = "",
5694                         .chain = target_subcommands,
5695                 },
5696                 COMMAND_REGISTRATION_DONE
5697         };
5698         e = register_commands(cmd_ctx, NULL, target_commands);
5699         if (ERROR_OK != e)
5700                 return JIM_ERR;
5701
5702         struct command *c = command_find_in_context(cmd_ctx, cp);
5703         assert(c);
5704         command_set_handler_data(c, target);
5705
5706         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5707 }
5708
5709 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5710 {
5711         if (argc != 1) {
5712                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5713                 return JIM_ERR;
5714         }
5715         struct command_context *cmd_ctx = current_command_context(interp);
5716         assert(cmd_ctx != NULL);
5717
5718         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5719         return JIM_OK;
5720 }
5721
5722 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5723 {
5724         if (argc != 1) {
5725                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5726                 return JIM_ERR;
5727         }
5728         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5729         for (unsigned x = 0; NULL != target_types[x]; x++) {
5730                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5731                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5732         }
5733         return JIM_OK;
5734 }
5735
5736 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5737 {
5738         if (argc != 1) {
5739                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5740                 return JIM_ERR;
5741         }
5742         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5743         struct target *target = all_targets;
5744         while (target) {
5745                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5746                         Jim_NewStringObj(interp, target_name(target), -1));
5747                 target = target->next;
5748         }
5749         return JIM_OK;
5750 }
5751
5752 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5753 {
5754         int i;
5755         const char *targetname;
5756         int retval, len;
5757         struct target *target = (struct target *) NULL;
5758         struct target_list *head, *curr, *new;
5759         curr = (struct target_list *) NULL;
5760         head = (struct target_list *) NULL;
5761
5762         retval = 0;
5763         LOG_DEBUG("%d", argc);
5764         /* argv[1] = target to associate in smp
5765          * argv[2] = target to assoicate in smp
5766          * argv[3] ...
5767          */
5768
5769         for (i = 1; i < argc; i++) {
5770
5771                 targetname = Jim_GetString(argv[i], &len);
5772                 target = get_target(targetname);
5773                 LOG_DEBUG("%s ", targetname);
5774                 if (target) {
5775                         new = malloc(sizeof(struct target_list));
5776                         new->target = target;
5777                         new->next = (struct target_list *)NULL;
5778                         if (head == (struct target_list *)NULL) {
5779                                 head = new;
5780                                 curr = head;
5781                         } else {
5782                                 curr->next = new;
5783                                 curr = new;
5784                         }
5785                 }
5786         }
5787         /*  now parse the list of cpu and put the target in smp mode*/
5788         curr = head;
5789
5790         while (curr != (struct target_list *)NULL) {
5791                 target = curr->target;
5792                 target->smp = 1;
5793                 target->head = head;
5794                 curr = curr->next;
5795         }
5796
5797         if (target && target->rtos)
5798                 retval = rtos_smp_init(head->target);
5799
5800         return retval;
5801 }
5802
5803
5804 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5805 {
5806         Jim_GetOptInfo goi;
5807         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5808         if (goi.argc < 3) {
5809                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5810                         "<name> <target_type> [<target_options> ...]");
5811                 return JIM_ERR;
5812         }
5813         return target_create(&goi);
5814 }
5815
5816 static const struct command_registration target_subcommand_handlers[] = {
5817         {
5818                 .name = "init",
5819                 .mode = COMMAND_CONFIG,
5820                 .handler = handle_target_init_command,
5821                 .help = "initialize targets",
5822         },
5823         {
5824                 .name = "create",
5825                 /* REVISIT this should be COMMAND_CONFIG ... */
5826                 .mode = COMMAND_ANY,
5827                 .jim_handler = jim_target_create,
5828                 .usage = "name type '-chain-position' name [options ...]",
5829                 .help = "Creates and selects a new target",
5830         },
5831         {
5832                 .name = "current",
5833                 .mode = COMMAND_ANY,
5834                 .jim_handler = jim_target_current,
5835                 .help = "Returns the currently selected target",
5836         },
5837         {
5838                 .name = "types",
5839                 .mode = COMMAND_ANY,
5840                 .jim_handler = jim_target_types,
5841                 .help = "Returns the available target types as "
5842                                 "a list of strings",
5843         },
5844         {
5845                 .name = "names",
5846                 .mode = COMMAND_ANY,
5847                 .jim_handler = jim_target_names,
5848                 .help = "Returns the names of all targets as a list of strings",
5849         },
5850         {
5851                 .name = "smp",
5852                 .mode = COMMAND_ANY,
5853                 .jim_handler = jim_target_smp,
5854                 .usage = "targetname1 targetname2 ...",
5855                 .help = "gather several target in a smp list"
5856         },
5857
5858         COMMAND_REGISTRATION_DONE
5859 };
5860
5861 struct FastLoad {
5862         target_addr_t address;
5863         uint8_t *data;
5864         int length;
5865
5866 };
5867
5868 static int fastload_num;
5869 static struct FastLoad *fastload;
5870
5871 static void free_fastload(void)
5872 {
5873         if (fastload != NULL) {
5874                 int i;
5875                 for (i = 0; i < fastload_num; i++) {
5876                         if (fastload[i].data)
5877                                 free(fastload[i].data);
5878                 }
5879                 free(fastload);
5880                 fastload = NULL;
5881         }
5882 }
5883
5884 COMMAND_HANDLER(handle_fast_load_image_command)
5885 {
5886         uint8_t *buffer;
5887         size_t buf_cnt;
5888         uint32_t image_size;
5889         target_addr_t min_address = 0;
5890         target_addr_t max_address = -1;
5891         int i;
5892
5893         struct image image;
5894
5895         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5896                         &image, &min_address, &max_address);
5897         if (ERROR_OK != retval)
5898                 return retval;
5899
5900         struct duration bench;
5901         duration_start(&bench);
5902
5903         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5904         if (retval != ERROR_OK)
5905                 return retval;
5906
5907         image_size = 0x0;
5908         retval = ERROR_OK;
5909         fastload_num = image.num_sections;
5910         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5911         if (fastload == NULL) {
5912                 command_print(CMD_CTX, "out of memory");
5913                 image_close(&image);
5914                 return ERROR_FAIL;
5915         }
5916         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5917         for (i = 0; i < image.num_sections; i++) {
5918                 buffer = malloc(image.sections[i].size);
5919                 if (buffer == NULL) {
5920                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5921                                                   (int)(image.sections[i].size));
5922                         retval = ERROR_FAIL;
5923                         break;
5924                 }
5925
5926                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5927                 if (retval != ERROR_OK) {
5928                         free(buffer);
5929                         break;
5930                 }
5931
5932                 uint32_t offset = 0;
5933                 uint32_t length = buf_cnt;
5934
5935                 /* DANGER!!! beware of unsigned comparision here!!! */
5936
5937                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5938                                 (image.sections[i].base_address < max_address)) {
5939                         if (image.sections[i].base_address < min_address) {
5940                                 /* clip addresses below */
5941                                 offset += min_address-image.sections[i].base_address;
5942                                 length -= offset;
5943                         }
5944
5945                         if (image.sections[i].base_address + buf_cnt > max_address)
5946                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5947
5948                         fastload[i].address = image.sections[i].base_address + offset;
5949                         fastload[i].data = malloc(length);
5950                         if (fastload[i].data == NULL) {
5951                                 free(buffer);
5952                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5953                                                           length);
5954                                 retval = ERROR_FAIL;
5955                                 break;
5956                         }
5957                         memcpy(fastload[i].data, buffer + offset, length);
5958                         fastload[i].length = length;
5959
5960                         image_size += length;
5961                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5962                                                   (unsigned int)length,
5963                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5964                 }
5965
5966                 free(buffer);
5967         }
5968
5969         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5970                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5971                                 "in %fs (%0.3f KiB/s)", image_size,
5972                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5973
5974                 command_print(CMD_CTX,
5975                                 "WARNING: image has not been loaded to target!"
5976                                 "You can issue a 'fast_load' to finish loading.");
5977         }
5978
5979         image_close(&image);
5980
5981         if (retval != ERROR_OK)
5982                 free_fastload();
5983
5984         return retval;
5985 }
5986
5987 COMMAND_HANDLER(handle_fast_load_command)
5988 {
5989         if (CMD_ARGC > 0)
5990                 return ERROR_COMMAND_SYNTAX_ERROR;
5991         if (fastload == NULL) {
5992                 LOG_ERROR("No image in memory");
5993                 return ERROR_FAIL;
5994         }
5995         int i;
5996         int64_t ms = timeval_ms();
5997         int size = 0;
5998         int retval = ERROR_OK;
5999         for (i = 0; i < fastload_num; i++) {
6000                 struct target *target = get_current_target(CMD_CTX);
6001                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
6002                                           (unsigned int)(fastload[i].address),
6003                                           (unsigned int)(fastload[i].length));
6004                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
6005                 if (retval != ERROR_OK)
6006                         break;
6007                 size += fastload[i].length;
6008         }
6009         if (retval == ERROR_OK) {
6010                 int64_t after = timeval_ms();
6011                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
6012         }
6013         return retval;
6014 }
6015
6016 static const struct command_registration target_command_handlers[] = {
6017         {
6018                 .name = "targets",
6019                 .handler = handle_targets_command,
6020                 .mode = COMMAND_ANY,
6021                 .help = "change current default target (one parameter) "
6022                         "or prints table of all targets (no parameters)",
6023                 .usage = "[target]",
6024         },
6025         {
6026                 .name = "target",
6027                 .mode = COMMAND_CONFIG,
6028                 .help = "configure target",
6029
6030                 .chain = target_subcommand_handlers,
6031         },
6032         COMMAND_REGISTRATION_DONE
6033 };
6034
6035 int target_register_commands(struct command_context *cmd_ctx)
6036 {
6037         return register_commands(cmd_ctx, NULL, target_command_handlers);
6038 }
6039
6040 static bool target_reset_nag = true;
6041
6042 bool get_target_reset_nag(void)
6043 {
6044         return target_reset_nag;
6045 }
6046
6047 COMMAND_HANDLER(handle_target_reset_nag)
6048 {
6049         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
6050                         &target_reset_nag, "Nag after each reset about options to improve "
6051                         "performance");
6052 }
6053
6054 COMMAND_HANDLER(handle_ps_command)
6055 {
6056         struct target *target = get_current_target(CMD_CTX);
6057         char *display;
6058         if (target->state != TARGET_HALTED) {
6059                 LOG_INFO("target not halted !!");
6060                 return ERROR_OK;
6061         }
6062
6063         if ((target->rtos) && (target->rtos->type)
6064                         && (target->rtos->type->ps_command)) {
6065                 display = target->rtos->type->ps_command(target);
6066                 command_print(CMD_CTX, "%s", display);
6067                 free(display);
6068                 return ERROR_OK;
6069         } else {
6070                 LOG_INFO("failed");
6071                 return ERROR_TARGET_FAILURE;
6072         }
6073 }
6074
6075 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
6076 {
6077         if (text != NULL)
6078                 command_print_sameline(cmd_ctx, "%s", text);
6079         for (int i = 0; i < size; i++)
6080                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
6081         command_print(cmd_ctx, " ");
6082 }
6083
6084 COMMAND_HANDLER(handle_test_mem_access_command)
6085 {
6086         struct target *target = get_current_target(CMD_CTX);
6087         uint32_t test_size;
6088         int retval = ERROR_OK;
6089
6090         if (target->state != TARGET_HALTED) {
6091                 LOG_INFO("target not halted !!");
6092                 return ERROR_FAIL;
6093         }
6094
6095         if (CMD_ARGC != 1)
6096                 return ERROR_COMMAND_SYNTAX_ERROR;
6097
6098         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
6099
6100         /* Test reads */
6101         size_t num_bytes = test_size + 4;
6102
6103         struct working_area *wa = NULL;
6104         retval = target_alloc_working_area(target, num_bytes, &wa);
6105         if (retval != ERROR_OK) {
6106                 LOG_ERROR("Not enough working area");
6107                 return ERROR_FAIL;
6108         }
6109
6110         uint8_t *test_pattern = malloc(num_bytes);
6111
6112         for (size_t i = 0; i < num_bytes; i++)
6113                 test_pattern[i] = rand();
6114
6115         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6116         if (retval != ERROR_OK) {
6117                 LOG_ERROR("Test pattern write failed");
6118                 goto out;
6119         }
6120
6121         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6122                 for (int size = 1; size <= 4; size *= 2) {
6123                         for (int offset = 0; offset < 4; offset++) {
6124                                 uint32_t count = test_size / size;
6125                                 size_t host_bufsiz = (count + 2) * size + host_offset;
6126                                 uint8_t *read_ref = malloc(host_bufsiz);
6127                                 uint8_t *read_buf = malloc(host_bufsiz);
6128
6129                                 for (size_t i = 0; i < host_bufsiz; i++) {
6130                                         read_ref[i] = rand();
6131                                         read_buf[i] = read_ref[i];
6132                                 }
6133                                 command_print_sameline(CMD_CTX,
6134                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
6135                                                 size, offset, host_offset ? "un" : "");
6136
6137                                 struct duration bench;
6138                                 duration_start(&bench);
6139
6140                                 retval = target_read_memory(target, wa->address + offset, size, count,
6141                                                 read_buf + size + host_offset);
6142
6143                                 duration_measure(&bench);
6144
6145                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6146                                         command_print(CMD_CTX, "Unsupported alignment");
6147                                         goto next;
6148                                 } else if (retval != ERROR_OK) {
6149                                         command_print(CMD_CTX, "Memory read failed");
6150                                         goto next;
6151                                 }
6152
6153                                 /* replay on host */
6154                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
6155
6156                                 /* check result */
6157                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
6158                                 if (result == 0) {
6159                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6160                                                         duration_elapsed(&bench),
6161                                                         duration_kbps(&bench, count * size));
6162                                 } else {
6163                                         command_print(CMD_CTX, "Compare failed");
6164                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
6165                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
6166                                 }
6167 next:
6168                                 free(read_ref);
6169                                 free(read_buf);
6170                         }
6171                 }
6172         }
6173
6174 out:
6175         free(test_pattern);
6176
6177         if (wa != NULL)
6178                 target_free_working_area(target, wa);
6179
6180         /* Test writes */
6181         num_bytes = test_size + 4 + 4 + 4;
6182
6183         retval = target_alloc_working_area(target, num_bytes, &wa);
6184         if (retval != ERROR_OK) {
6185                 LOG_ERROR("Not enough working area");
6186                 return ERROR_FAIL;
6187         }
6188
6189         test_pattern = malloc(num_bytes);
6190
6191         for (size_t i = 0; i < num_bytes; i++)
6192                 test_pattern[i] = rand();
6193
6194         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6195                 for (int size = 1; size <= 4; size *= 2) {
6196                         for (int offset = 0; offset < 4; offset++) {
6197                                 uint32_t count = test_size / size;
6198                                 size_t host_bufsiz = count * size + host_offset;
6199                                 uint8_t *read_ref = malloc(num_bytes);
6200                                 uint8_t *read_buf = malloc(num_bytes);
6201                                 uint8_t *write_buf = malloc(host_bufsiz);
6202
6203                                 for (size_t i = 0; i < host_bufsiz; i++)
6204                                         write_buf[i] = rand();
6205                                 command_print_sameline(CMD_CTX,
6206                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
6207                                                 size, offset, host_offset ? "un" : "");
6208
6209                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6210                                 if (retval != ERROR_OK) {
6211                                         command_print(CMD_CTX, "Test pattern write failed");
6212                                         goto nextw;
6213                                 }
6214
6215                                 /* replay on host */
6216                                 memcpy(read_ref, test_pattern, num_bytes);
6217                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
6218
6219                                 struct duration bench;
6220                                 duration_start(&bench);
6221
6222                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
6223                                                 write_buf + host_offset);
6224
6225                                 duration_measure(&bench);
6226
6227                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6228                                         command_print(CMD_CTX, "Unsupported alignment");
6229                                         goto nextw;
6230                                 } else if (retval != ERROR_OK) {
6231                                         command_print(CMD_CTX, "Memory write failed");
6232                                         goto nextw;
6233                                 }
6234
6235                                 /* read back */
6236                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
6237                                 if (retval != ERROR_OK) {
6238                                         command_print(CMD_CTX, "Test pattern write failed");
6239                                         goto nextw;
6240                                 }
6241
6242                                 /* check result */
6243                                 int result = memcmp(read_ref, read_buf, num_bytes);
6244                                 if (result == 0) {
6245                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6246                                                         duration_elapsed(&bench),
6247                                                         duration_kbps(&bench, count * size));
6248                                 } else {
6249                                         command_print(CMD_CTX, "Compare failed");
6250                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
6251                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
6252                                 }
6253 nextw:
6254                                 free(read_ref);
6255                                 free(read_buf);
6256                         }
6257                 }
6258         }
6259
6260         free(test_pattern);
6261
6262         if (wa != NULL)
6263                 target_free_working_area(target, wa);
6264         return retval;
6265 }
6266
6267 static const struct command_registration target_exec_command_handlers[] = {
6268         {
6269                 .name = "fast_load_image",
6270                 .handler = handle_fast_load_image_command,
6271                 .mode = COMMAND_ANY,
6272                 .help = "Load image into server memory for later use by "
6273                         "fast_load; primarily for profiling",
6274                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6275                         "[min_address [max_length]]",
6276         },
6277         {
6278                 .name = "fast_load",
6279                 .handler = handle_fast_load_command,
6280                 .mode = COMMAND_EXEC,
6281                 .help = "loads active fast load image to current target "
6282                         "- mainly for profiling purposes",
6283                 .usage = "",
6284         },
6285         {
6286                 .name = "profile",
6287                 .handler = handle_profile_command,
6288                 .mode = COMMAND_EXEC,
6289                 .usage = "seconds filename [start end]",
6290                 .help = "profiling samples the CPU PC",
6291         },
6292         /** @todo don't register virt2phys() unless target supports it */
6293         {
6294                 .name = "virt2phys",
6295                 .handler = handle_virt2phys_command,
6296                 .mode = COMMAND_ANY,
6297                 .help = "translate a virtual address into a physical address",
6298                 .usage = "virtual_address",
6299         },
6300         {
6301                 .name = "reg",
6302                 .handler = handle_reg_command,
6303                 .mode = COMMAND_EXEC,
6304                 .help = "display (reread from target with \"force\") or set a register; "
6305                         "with no arguments, displays all registers and their values",
6306                 .usage = "[(register_number|register_name) [(value|'force')]]",
6307         },
6308         {
6309                 .name = "poll",
6310                 .handler = handle_poll_command,
6311                 .mode = COMMAND_EXEC,
6312                 .help = "poll target state; or reconfigure background polling",
6313                 .usage = "['on'|'off']",
6314         },
6315         {
6316                 .name = "wait_halt",
6317                 .handler = handle_wait_halt_command,
6318                 .mode = COMMAND_EXEC,
6319                 .help = "wait up to the specified number of milliseconds "
6320                         "(default 5000) for a previously requested halt",
6321                 .usage = "[milliseconds]",
6322         },
6323         {
6324                 .name = "halt",
6325                 .handler = handle_halt_command,
6326                 .mode = COMMAND_EXEC,
6327                 .help = "request target to halt, then wait up to the specified"
6328                         "number of milliseconds (default 5000) for it to complete",
6329                 .usage = "[milliseconds]",
6330         },
6331         {
6332                 .name = "resume",
6333                 .handler = handle_resume_command,
6334                 .mode = COMMAND_EXEC,
6335                 .help = "resume target execution from current PC or address",
6336                 .usage = "[address]",
6337         },
6338         {
6339                 .name = "reset",
6340                 .handler = handle_reset_command,
6341                 .mode = COMMAND_EXEC,
6342                 .usage = "[run|halt|init]",
6343                 .help = "Reset all targets into the specified mode."
6344                         "Default reset mode is run, if not given.",
6345         },
6346         {
6347                 .name = "soft_reset_halt",
6348                 .handler = handle_soft_reset_halt_command,
6349                 .mode = COMMAND_EXEC,
6350                 .usage = "",
6351                 .help = "halt the target and do a soft reset",
6352         },
6353         {
6354                 .name = "step",
6355                 .handler = handle_step_command,
6356                 .mode = COMMAND_EXEC,
6357                 .help = "step one instruction from current PC or address",
6358                 .usage = "[address]",
6359         },
6360         {
6361                 .name = "mdd",
6362                 .handler = handle_md_command,
6363                 .mode = COMMAND_EXEC,
6364                 .help = "display memory words",
6365                 .usage = "['phys'] address [count]",
6366         },
6367         {
6368                 .name = "mdw",
6369                 .handler = handle_md_command,
6370                 .mode = COMMAND_EXEC,
6371                 .help = "display memory words",
6372                 .usage = "['phys'] address [count]",
6373         },
6374         {
6375                 .name = "mdh",
6376                 .handler = handle_md_command,
6377                 .mode = COMMAND_EXEC,
6378                 .help = "display memory half-words",
6379                 .usage = "['phys'] address [count]",
6380         },
6381         {
6382                 .name = "mdb",
6383                 .handler = handle_md_command,
6384                 .mode = COMMAND_EXEC,
6385                 .help = "display memory bytes",
6386                 .usage = "['phys'] address [count]",
6387         },
6388         {
6389                 .name = "mwd",
6390                 .handler = handle_mw_command,
6391                 .mode = COMMAND_EXEC,
6392                 .help = "write memory word",
6393                 .usage = "['phys'] address value [count]",
6394         },
6395         {
6396                 .name = "mww",
6397                 .handler = handle_mw_command,
6398                 .mode = COMMAND_EXEC,
6399                 .help = "write memory word",
6400                 .usage = "['phys'] address value [count]",
6401         },
6402         {
6403                 .name = "mwh",
6404                 .handler = handle_mw_command,
6405                 .mode = COMMAND_EXEC,
6406                 .help = "write memory half-word",
6407                 .usage = "['phys'] address value [count]",
6408         },
6409         {
6410                 .name = "mwb",
6411                 .handler = handle_mw_command,
6412                 .mode = COMMAND_EXEC,
6413                 .help = "write memory byte",
6414                 .usage = "['phys'] address value [count]",
6415         },
6416         {
6417                 .name = "bp",
6418                 .handler = handle_bp_command,
6419                 .mode = COMMAND_EXEC,
6420                 .help = "list or set hardware or software breakpoint",
6421                 .usage = "<address> [<asid>] <length> ['hw'|'hw_ctx']",
6422         },
6423         {
6424                 .name = "rbp",
6425                 .handler = handle_rbp_command,
6426                 .mode = COMMAND_EXEC,
6427                 .help = "remove breakpoint",
6428                 .usage = "address",
6429         },
6430         {
6431                 .name = "wp",
6432                 .handler = handle_wp_command,
6433                 .mode = COMMAND_EXEC,
6434                 .help = "list (no params) or create watchpoints",
6435                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6436         },
6437         {
6438                 .name = "rwp",
6439                 .handler = handle_rwp_command,
6440                 .mode = COMMAND_EXEC,
6441                 .help = "remove watchpoint",
6442                 .usage = "address",
6443         },
6444         {
6445                 .name = "load_image",
6446                 .handler = handle_load_image_command,
6447                 .mode = COMMAND_EXEC,
6448                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6449                         "[min_address] [max_length]",
6450         },
6451         {
6452                 .name = "dump_image",
6453                 .handler = handle_dump_image_command,
6454                 .mode = COMMAND_EXEC,
6455                 .usage = "filename address size",
6456         },
6457         {
6458                 .name = "verify_image_checksum",
6459                 .handler = handle_verify_image_checksum_command,
6460                 .mode = COMMAND_EXEC,
6461                 .usage = "filename [offset [type]]",
6462         },
6463         {
6464                 .name = "verify_image",
6465                 .handler = handle_verify_image_command,
6466                 .mode = COMMAND_EXEC,
6467                 .usage = "filename [offset [type]]",
6468         },
6469         {
6470                 .name = "test_image",
6471                 .handler = handle_test_image_command,
6472                 .mode = COMMAND_EXEC,
6473                 .usage = "filename [offset [type]]",
6474         },
6475         {
6476                 .name = "mem2array",
6477                 .mode = COMMAND_EXEC,
6478                 .jim_handler = jim_mem2array,
6479                 .help = "read 8/16/32 bit memory and return as a TCL array "
6480                         "for script processing",
6481                 .usage = "arrayname bitwidth address count",
6482         },
6483         {
6484                 .name = "array2mem",
6485                 .mode = COMMAND_EXEC,
6486                 .jim_handler = jim_array2mem,
6487                 .help = "convert a TCL array to memory locations "
6488                         "and write the 8/16/32 bit values",
6489                 .usage = "arrayname bitwidth address count",
6490         },
6491         {
6492                 .name = "reset_nag",
6493                 .handler = handle_target_reset_nag,
6494                 .mode = COMMAND_ANY,
6495                 .help = "Nag after each reset about options that could have been "
6496                                 "enabled to improve performance. ",
6497                 .usage = "['enable'|'disable']",
6498         },
6499         {
6500                 .name = "ps",
6501                 .handler = handle_ps_command,
6502                 .mode = COMMAND_EXEC,
6503                 .help = "list all tasks ",
6504                 .usage = " ",
6505         },
6506         {
6507                 .name = "test_mem_access",
6508                 .handler = handle_test_mem_access_command,
6509                 .mode = COMMAND_EXEC,
6510                 .help = "Test the target's memory access functions",
6511                 .usage = "size",
6512         },
6513
6514         COMMAND_REGISTRATION_DONE
6515 };
6516 static int target_register_user_commands(struct command_context *cmd_ctx)
6517 {
6518         int retval = ERROR_OK;
6519         retval = target_request_register_commands(cmd_ctx);
6520         if (retval != ERROR_OK)
6521                 return retval;
6522
6523         retval = trace_register_commands(cmd_ctx);
6524         if (retval != ERROR_OK)
6525                 return retval;
6526
6527
6528         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6529 }