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
 111 static struct target_type *target_types[] = {
 112         &arm7tdmi_target,
 113         &arm9tdmi_target,
 114         &arm920t_target,
 115         &arm720t_target,
 116         &arm966e_target,
 117         &arm946e_target,
 118         &arm926ejs_target,
 119         &fa526_target,
 120         &feroceon_target,
 121         &dragonite_target,
 122         &xscale_target,
 123         &cortexm_target,
 124         &cortexa_target,
 125         &cortexr4_target,
 126         &arm11_target,
 127         &ls1_sap_target,
 128         &mips_m4k_target,
 129         &avr_target,
 130         &dsp563xx_target,
 131         &dsp5680xx_target,
 132         &testee_target,
 133         &avr32_ap7k_target,
 134         &hla_target,
 135         &nds32_v2_target,
 136         &nds32_v3_target,
 137         &nds32_v3m_target,
 138         &or1k_target,
 139         &quark_x10xx_target,
 140         &quark_d20xx_target,
 141         &stm8_target,
 142 #if BUILD_TARGET64
 143         &aarch64_target,
 144 #endif
 145         NULL,
 146 };
 147
 148 struct target *all_targets;
 149 static struct target_event_callback *target_event_callbacks;
 150 static struct target_timer_callback *target_timer_callbacks;
 151 LIST_HEAD(target_reset_callback_list);
 152 LIST_HEAD(target_trace_callback_list);
 153 static const int polling_interval = 100;
 154
 155 static const Jim_Nvp nvp_assert[] = {
 156         { .name = "assert", NVP_ASSERT },
 157         { .name = "deassert", NVP_DEASSERT },
 158         { .name = "T", NVP_ASSERT },
 159         { .name = "F", NVP_DEASSERT },
 160         { .name = "t", NVP_ASSERT },
 161         { .name = "f", NVP_DEASSERT },
 162         { .name = NULL, .value = -1 }
 163 };
 164
 165 static const Jim_Nvp nvp_error_target[] = {
 166         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 167         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 168         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 169         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 170         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 171         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 172         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 173         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 174         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 175         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 176         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 177         { .value = -1, .name = NULL }
 178 };
 179
 180 static const char *target_strerror_safe(int err)
 181 {
 182         const Jim_Nvp *n;
 183
 184         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 185         if (n->name == NULL)
 186                 return "unknown";
 187         else
 188                 return n->name;
 189 }
 190
 191 static const Jim_Nvp nvp_target_event[] = {
 192
 193         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 194         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 195         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 196         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 197         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 198
 199         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 200         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 201
 202         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 203         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 204         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 205         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 206         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 207         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 208         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 209         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 210
 211         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 212         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 213
 214         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 215         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 216
 217         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 218         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 219
 220         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 221         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 222
 223         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 224         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 225
 226         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 227
 228         { .name = NULL, .value = -1 }
 229 };
 230
 231 static const Jim_Nvp nvp_target_state[] = {
 232         { .name = "unknown", .value = TARGET_UNKNOWN },
 233         { .name = "running", .value = TARGET_RUNNING },
 234         { .name = "halted",  .value = TARGET_HALTED },
 235         { .name = "reset",   .value = TARGET_RESET },
 236         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 237         { .name = NULL, .value = -1 },
 238 };
 239
 240 static const Jim_Nvp nvp_target_debug_reason[] = {
 241         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 242         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 243         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 244         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 245         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 246         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 247         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 248         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 249         { .name = NULL, .value = -1 },
 250 };
 251
 252 static const Jim_Nvp nvp_target_endian[] = {
 253         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 254         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 255         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 256         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 257         { .name = NULL,     .value = -1 },
 258 };
 259
 260 static const Jim_Nvp nvp_reset_modes[] = {
 261         { .name = "unknown", .value = RESET_UNKNOWN },
 262         { .name = "run"    , .value = RESET_RUN },
 263         { .name = "halt"   , .value = RESET_HALT },
 264         { .name = "init"   , .value = RESET_INIT },
 265         { .name = NULL     , .value = -1 },
 266 };
 267
 268 const char *debug_reason_name(struct target *t)
 269 {
 270         const char *cp;
 271
 272         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 273                         t->debug_reason)->name;
 274         if (!cp) {
 275                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 276                 cp = "(*BUG*unknown*BUG*)";
 277         }
 278         return cp;
 279 }
 280
 281 const char *target_state_name(struct target *t)
 282 {
 283         const char *cp;
 284         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 285         if (!cp) {
 286                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 287                 cp = "(*BUG*unknown*BUG*)";
 288         }
 289
 290         if (!target_was_examined(t) && t->defer_examine)
 291                 cp = "examine deferred";
 292
 293         return cp;
 294 }
 295
 296 const char *target_event_name(enum target_event event)
 297 {
 298         const char *cp;
 299         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 300         if (!cp) {
 301                 LOG_ERROR("Invalid target event: %d", (int)(event));
 302                 cp = "(*BUG*unknown*BUG*)";
 303         }
 304         return cp;
 305 }
 306
 307 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 308 {
 309         const char *cp;
 310         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 311         if (!cp) {
 312                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 313                 cp = "(*BUG*unknown*BUG*)";
 314         }
 315         return cp;
 316 }
 317
 318 /* determine the number of the new target */
 319 static int new_target_number(void)
 320 {
 321         struct target *t;
 322         int x;
 323
 324         /* number is 0 based */
 325         x = -1;
 326         t = all_targets;
 327         while (t) {
 328                 if (x < t->target_number)
 329                         x = t->target_number;
 330                 t = t->next;
 331         }
 332         return x + 1;
 333 }
 334
 335 /* read a uint64_t from a buffer in target memory endianness */
 336 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 337 {
 338         if (target->endianness == TARGET_LITTLE_ENDIAN)
 339                 return le_to_h_u64(buffer);
 340         else
 341                 return be_to_h_u64(buffer);
 342 }
 343
 344 /* read a uint32_t from a buffer in target memory endianness */
 345 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 346 {
 347         if (target->endianness == TARGET_LITTLE_ENDIAN)
 348                 return le_to_h_u32(buffer);
 349         else
 350                 return be_to_h_u32(buffer);
 351 }
 352
 353 /* read a uint24_t from a buffer in target memory endianness */
 354 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 355 {
 356         if (target->endianness == TARGET_LITTLE_ENDIAN)
 357                 return le_to_h_u24(buffer);
 358         else
 359                 return be_to_h_u24(buffer);
 360 }
 361
 362 /* read a uint16_t from a buffer in target memory endianness */
 363 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 364 {
 365         if (target->endianness == TARGET_LITTLE_ENDIAN)
 366                 return le_to_h_u16(buffer);
 367         else
 368                 return be_to_h_u16(buffer);
 369 }
 370
 371 /* read a uint8_t from a buffer in target memory endianness */
 372 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 373 {
 374         return *buffer & 0x0ff;
 375 }
 376
 377 /* write a uint64_t to a buffer in target memory endianness */
 378 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 379 {
 380         if (target->endianness == TARGET_LITTLE_ENDIAN)
 381                 h_u64_to_le(buffer, value);
 382         else
 383                 h_u64_to_be(buffer, value);
 384 }
 385
 386 /* write a uint32_t to a buffer in target memory endianness */
 387 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 388 {
 389         if (target->endianness == TARGET_LITTLE_ENDIAN)
 390                 h_u32_to_le(buffer, value);
 391         else
 392                 h_u32_to_be(buffer, value);
 393 }
 394
 395 /* write a uint24_t to a buffer in target memory endianness */
 396 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 397 {
 398         if (target->endianness == TARGET_LITTLE_ENDIAN)
 399                 h_u24_to_le(buffer, value);
 400         else
 401                 h_u24_to_be(buffer, value);
 402 }
 403
 404 /* write a uint16_t to a buffer in target memory endianness */
 405 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 406 {
 407         if (target->endianness == TARGET_LITTLE_ENDIAN)
 408                 h_u16_to_le(buffer, value);
 409         else
 410                 h_u16_to_be(buffer, value);
 411 }
 412
 413 /* write a uint8_t to a buffer in target memory endianness */
 414 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 415 {
 416         *buffer = value;
 417 }
 418
 419 /* write a uint64_t array to a buffer in target memory endianness */
 420 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 421 {
 422         uint32_t i;
 423         for (i = 0; i < count; i++)
 424                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 425 }
 426
 427 /* write a uint32_t array to a buffer in target memory endianness */
 428 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 429 {
 430         uint32_t i;
 431         for (i = 0; i < count; i++)
 432                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 433 }
 434
 435 /* write a uint16_t array to a buffer in target memory endianness */
 436 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 437 {
 438         uint32_t i;
 439         for (i = 0; i < count; i++)
 440                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 441 }
 442
 443 /* write a uint64_t array to a buffer in target memory endianness */
 444 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 445 {
 446         uint32_t i;
 447         for (i = 0; i < count; i++)
 448                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 449 }
 450
 451 /* write a uint32_t array to a buffer in target memory endianness */
 452 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 453 {
 454         uint32_t i;
 455         for (i = 0; i < count; i++)
 456                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 457 }
 458
 459 /* write a uint16_t array to a buffer in target memory endianness */
 460 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 461 {
 462         uint32_t i;
 463         for (i = 0; i < count; i++)
 464                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 465 }
 466
 467 /* return a pointer to a configured target; id is name or number */
 468 struct target *get_target(const char *id)
 469 {
 470         struct target *target;
 471
 472         /* try as tcltarget name */
 473         for (target = all_targets; target; target = target->next) {
 474                 if (target_name(target) == NULL)
 475                         continue;
 476                 if (strcmp(id, target_name(target)) == 0)
 477                         return target;
 478         }
 479
 480         /* It's OK to remove this fallback sometime after August 2010 or so */
 481
 482         /* no match, try as number */
 483         unsigned num;
 484         if (parse_uint(id, &num) != ERROR_OK)
 485                 return NULL;
 486
 487         for (target = all_targets; target; target = target->next) {
 488                 if (target->target_number == (int)num) {
 489                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 490                                         target_name(target), num);
 491                         return target;
 492                 }
 493         }
 494
 495         return NULL;
 496 }
 497
 498 /* returns a pointer to the n-th configured target */
 499 struct target *get_target_by_num(int num)
 500 {
 501         struct target *target = all_targets;
 502
 503         while (target) {
 504                 if (target->target_number == num)
 505                         return target;
 506                 target = target->next;
 507         }
 508
 509         return NULL;
 510 }
 511
 512 struct target *get_current_target(struct command_context *cmd_ctx)
 513 {
 514         struct target *target = cmd_ctx->current_target_override
 515                 ? cmd_ctx->current_target_override
 516                 : cmd_ctx->current_target;
 517
 518         if (target == NULL) {
 519                 LOG_ERROR("BUG: current_target out of bounds");
 520                 exit(-1);
 521         }
 522
 523         return target;
 524 }
 525
 526 int target_poll(struct target *target)
 527 {
 528         int retval;
 529
 530         /* We can't poll until after examine */
 531         if (!target_was_examined(target)) {
 532                 /* Fail silently lest we pollute the log */
 533                 return ERROR_FAIL;
 534         }
 535
 536         retval = target->type->poll(target);
 537         if (retval != ERROR_OK)
 538                 return retval;
 539
 540         if (target->halt_issued) {
 541                 if (target->state == TARGET_HALTED)
 542                         target->halt_issued = false;
 543                 else {
 544                         int64_t t = timeval_ms() - target->halt_issued_time;
 545                         if (t > DEFAULT_HALT_TIMEOUT) {
 546                                 target->halt_issued = false;
 547                                 LOG_INFO("Halt timed out, wake up GDB.");
 548                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 549                         }
 550                 }
 551         }
 552
 553         return ERROR_OK;
 554 }
 555
 556 int target_halt(struct target *target)
 557 {
 558         int retval;
 559         /* We can't poll until after examine */
 560         if (!target_was_examined(target)) {
 561                 LOG_ERROR("Target not examined yet");
 562                 return ERROR_FAIL;
 563         }
 564
 565         retval = target->type->halt(target);
 566         if (retval != ERROR_OK)
 567                 return retval;
 568
 569         target->halt_issued = true;
 570         target->halt_issued_time = timeval_ms();
 571
 572         return ERROR_OK;
 573 }
 574
 575 /**
 576  * Make the target (re)start executing using its saved execution
 577  * context (possibly with some modifications).
 578  *
 579  * @param target Which target should start executing.
 580  * @param current True to use the target's saved program counter instead
 581  *      of the address parameter
 582  * @param address Optionally used as the program counter.
 583  * @param handle_breakpoints True iff breakpoints at the resumption PC
 584  *      should be skipped.  (For example, maybe execution was stopped by
 585  *      such a breakpoint, in which case it would be counterprodutive to
 586  *      let it re-trigger.
 587  * @param debug_execution False if all working areas allocated by OpenOCD
 588  *      should be released and/or restored to their original contents.
 589  *      (This would for example be true to run some downloaded "helper"
 590  *      algorithm code, which resides in one such working buffer and uses
 591  *      another for data storage.)
 592  *
 593  * @todo Resolve the ambiguity about what the "debug_execution" flag
 594  * signifies.  For example, Target implementations don't agree on how
 595  * it relates to invalidation of the register cache, or to whether
 596  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 597  * to enable breakpoints when running downloaded "helper" algorithms
 598  * (debug_execution true), since the breakpoints would be set to match
 599  * target firmware being debugged, not the helper algorithm.... and
 600  * enabling them could cause such helpers to malfunction (for example,
 601  * by overwriting data with a breakpoint instruction.  On the other
 602  * hand the infrastructure for running such helpers might use this
 603  * procedure but rely on hardware breakpoint to detect termination.)
 604  */
 605 int target_resume(struct target *target, int current, target_addr_t address,
 606                 int handle_breakpoints, int debug_execution)
 607 {
 608         int retval;
 609
 610         /* We can't poll until after examine */
 611         if (!target_was_examined(target)) {
 612                 LOG_ERROR("Target not examined yet");
 613                 return ERROR_FAIL;
 614         }
 615
 616         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 617
 618         /* note that resume *must* be asynchronous. The CPU can halt before
 619          * we poll. The CPU can even halt at the current PC as a result of
 620          * a software breakpoint being inserted by (a bug?) the application.
 621          */
 622         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 623         if (retval != ERROR_OK)
 624                 return retval;
 625
 626         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 627
 628         return retval;
 629 }
 630
 631 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 632 {
 633         char buf[100];
 634         int retval;
 635         Jim_Nvp *n;
 636         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 637         if (n->name == NULL) {
 638                 LOG_ERROR("invalid reset mode");
 639                 return ERROR_FAIL;
 640         }
 641
 642         struct target *target;
 643         for (target = all_targets; target; target = target->next)
 644                 target_call_reset_callbacks(target, reset_mode);
 645
 646         /* disable polling during reset to make reset event scripts
 647          * more predictable, i.e. dr/irscan & pathmove in events will
 648          * not have JTAG operations injected into the middle of a sequence.
 649          */
 650         bool save_poll = jtag_poll_get_enabled();
 651
 652         jtag_poll_set_enabled(false);
 653
 654         sprintf(buf, "ocd_process_reset %s", n->name);
 655         retval = Jim_Eval(cmd_ctx->interp, buf);
 656
 657         jtag_poll_set_enabled(save_poll);
 658
 659         if (retval != JIM_OK) {
 660                 Jim_MakeErrorMessage(cmd_ctx->interp);
 661                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 662                 return ERROR_FAIL;
 663         }
 664
 665         /* We want any events to be processed before the prompt */
 666         retval = target_call_timer_callbacks_now();
 667
 668         for (target = all_targets; target; target = target->next) {
 669                 target->type->check_reset(target);
 670                 target->running_alg = false;
 671         }
 672
 673         return retval;
 674 }
 675
 676 static int identity_virt2phys(struct target *target,
 677                 target_addr_t virtual, target_addr_t *physical)
 678 {
 679         *physical = virtual;
 680         return ERROR_OK;
 681 }
 682
 683 static int no_mmu(struct target *target, int *enabled)
 684 {
 685         *enabled = 0;
 686         return ERROR_OK;
 687 }
 688
 689 static int default_examine(struct target *target)
 690 {
 691         target_set_examined(target);
 692         return ERROR_OK;
 693 }
 694
 695 /* no check by default */
 696 static int default_check_reset(struct target *target)
 697 {
 698         return ERROR_OK;
 699 }
 700
 701 int target_examine_one(struct target *target)
 702 {
 703         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 704
 705         int retval = target->type->examine(target);
 706         if (retval != ERROR_OK)
 707                 return retval;
 708
 709         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 710
 711         return ERROR_OK;
 712 }
 713
 714 static int jtag_enable_callback(enum jtag_event event, void *priv)
 715 {
 716         struct target *target = priv;
 717
 718         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 719                 return ERROR_OK;
 720
 721         jtag_unregister_event_callback(jtag_enable_callback, target);
 722
 723         return target_examine_one(target);
 724 }
 725
 726 /* Targets that correctly implement init + examine, i.e.
 727  * no communication with target during init:
 728  *
 729  * XScale
 730  */
 731 int target_examine(void)
 732 {
 733         int retval = ERROR_OK;
 734         struct target *target;
 735
 736         for (target = all_targets; target; target = target->next) {
 737                 /* defer examination, but don't skip it */
 738                 if (!target->tap->enabled) {
 739                         jtag_register_event_callback(jtag_enable_callback,
 740                                         target);
 741                         continue;
 742                 }
 743
 744                 if (target->defer_examine)
 745                         continue;
 746
 747                 retval = target_examine_one(target);
 748                 if (retval != ERROR_OK)
 749                         return retval;
 750         }
 751         return retval;
 752 }
 753
 754 const char *target_type_name(struct target *target)
 755 {
 756         return target->type->name;
 757 }
 758
 759 static int target_soft_reset_halt(struct target *target)
 760 {
 761         if (!target_was_examined(target)) {
 762                 LOG_ERROR("Target not examined yet");
 763                 return ERROR_FAIL;
 764         }
 765         if (!target->type->soft_reset_halt) {
 766                 LOG_ERROR("Target %s does not support soft_reset_halt",
 767                                 target_name(target));
 768                 return ERROR_FAIL;
 769         }
 770         return target->type->soft_reset_halt(target);
 771 }
 772
 773 /**
 774  * Downloads a target-specific native code algorithm to the target,
 775  * and executes it.  * Note that some targets may need to set up, enable,
 776  * and tear down a breakpoint (hard or * soft) to detect algorithm
 777  * termination, while others may support  lower overhead schemes where
 778  * soft breakpoints embedded in the algorithm automatically terminate the
 779  * algorithm.
 780  *
 781  * @param target used to run the algorithm
 782  * @param arch_info target-specific description of the algorithm.
 783  */
 784 int target_run_algorithm(struct target *target,
 785                 int num_mem_params, struct mem_param *mem_params,
 786                 int num_reg_params, struct reg_param *reg_param,
 787                 uint32_t entry_point, uint32_t exit_point,
 788                 int timeout_ms, void *arch_info)
 789 {
 790         int retval = ERROR_FAIL;
 791
 792         if (!target_was_examined(target)) {
 793                 LOG_ERROR("Target not examined yet");
 794                 goto done;
 795         }
 796         if (!target->type->run_algorithm) {
 797                 LOG_ERROR("Target type '%s' does not support %s",
 798                                 target_type_name(target), __func__);
 799                 goto done;
 800         }
 801
 802         target->running_alg = true;
 803         retval = target->type->run_algorithm(target,
 804                         num_mem_params, mem_params,
 805                         num_reg_params, reg_param,
 806                         entry_point, exit_point, timeout_ms, arch_info);
 807         target->running_alg = false;
 808
 809 done:
 810         return retval;
 811 }
 812
 813 /**
 814  * Executes a target-specific native code algorithm and leaves it running.
 815  *
 816  * @param target used to run the algorithm
 817  * @param arch_info target-specific description of the algorithm.
 818  */
 819 int target_start_algorithm(struct target *target,
 820                 int num_mem_params, struct mem_param *mem_params,
 821                 int num_reg_params, struct reg_param *reg_params,
 822                 uint32_t entry_point, uint32_t exit_point,
 823                 void *arch_info)
 824 {
 825         int retval = ERROR_FAIL;
 826
 827         if (!target_was_examined(target)) {
 828                 LOG_ERROR("Target not examined yet");
 829                 goto done;
 830         }
 831         if (!target->type->start_algorithm) {
 832                 LOG_ERROR("Target type '%s' does not support %s",
 833                                 target_type_name(target), __func__);
 834                 goto done;
 835         }
 836         if (target->running_alg) {
 837                 LOG_ERROR("Target is already running an algorithm");
 838                 goto done;
 839         }
 840
 841         target->running_alg = true;
 842         retval = target->type->start_algorithm(target,
 843                         num_mem_params, mem_params,
 844                         num_reg_params, reg_params,
 845                         entry_point, exit_point, arch_info);
 846
 847 done:
 848         return retval;
 849 }
 850
 851 /**
 852  * Waits for an algorithm started with target_start_algorithm() to complete.
 853  *
 854  * @param target used to run the algorithm
 855  * @param arch_info target-specific description of the algorithm.
 856  */
 857 int target_wait_algorithm(struct target *target,
 858                 int num_mem_params, struct mem_param *mem_params,
 859                 int num_reg_params, struct reg_param *reg_params,
 860                 uint32_t exit_point, int timeout_ms,
 861                 void *arch_info)
 862 {
 863         int retval = ERROR_FAIL;
 864
 865         if (!target->type->wait_algorithm) {
 866                 LOG_ERROR("Target type '%s' does not support %s",
 867                                 target_type_name(target), __func__);
 868                 goto done;
 869         }
 870         if (!target->running_alg) {
 871                 LOG_ERROR("Target is not running an algorithm");
 872                 goto done;
 873         }
 874
 875         retval = target->type->wait_algorithm(target,
 876                         num_mem_params, mem_params,
 877                         num_reg_params, reg_params,
 878                         exit_point, timeout_ms, arch_info);
 879         if (retval != ERROR_TARGET_TIMEOUT)
 880                 target->running_alg = false;
 881
 882 done:
 883         return retval;
 884 }
 885
 886 /**
 887  * Streams data to a circular buffer on target intended for consumption by code
 888  * running asynchronously on target.
 889  *
 890  * This is intended for applications where target-specific native code runs
 891  * on the target, receives data from the circular buffer, does something with
 892  * it (most likely writing it to a flash memory), and advances the circular
 893  * buffer pointer.
 894  *
 895  * This assumes that the helper algorithm has already been loaded to the target,
 896  * but has not been started yet. Given memory and register parameters are passed
 897  * to the algorithm.
 898  *
 899  * The buffer is defined by (buffer_start, buffer_size) arguments and has the
 900  * following format:
 901  *
 902  *     [buffer_start + 0, buffer_start + 4):
 903  *         Write Pointer address (aka head). Written and updated by this
 904  *         routine when new data is written to the circular buffer.
 905  *     [buffer_start + 4, buffer_start + 8):
 906  *         Read Pointer address (aka tail). Updated by code running on the
 907  *         target after it consumes data.
 908  *     [buffer_start + 8, buffer_start + buffer_size):
 909  *         Circular buffer contents.
 910  *
 911  * See contrib/loaders/flash/stm32f1x.S for an example.
 912  *
 913  * @param target used to run the algorithm
 914  * @param buffer address on the host where data to be sent is located
 915  * @param count number of blocks to send
 916  * @param block_size size in bytes of each block
 917  * @param num_mem_params count of memory-based params to pass to algorithm
 918  * @param mem_params memory-based params to pass to algorithm
 919  * @param num_reg_params count of register-based params to pass to algorithm
 920  * @param reg_params memory-based params to pass to algorithm
 921  * @param buffer_start address on the target of the circular buffer structure
 922  * @param buffer_size size of the circular buffer structure
 923  * @param entry_point address on the target to execute to start the algorithm
 924  * @param exit_point address at which to set a breakpoint to catch the
 925  *     end of the algorithm; can be 0 if target triggers a breakpoint itself
 926  */
 927
 928 int target_run_flash_async_algorithm(struct target *target,
 929                 const uint8_t *buffer, uint32_t count, int block_size,
 930                 int num_mem_params, struct mem_param *mem_params,
 931                 int num_reg_params, struct reg_param *reg_params,
 932                 uint32_t buffer_start, uint32_t buffer_size,
 933                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 934 {
 935         int retval;
 936         int timeout = 0;
 937
 938         const uint8_t *buffer_orig = buffer;
 939
 940         /* Set up working area. First word is write pointer, second word is read pointer,
 941          * rest is fifo data area. */
 942         uint32_t wp_addr = buffer_start;
 943         uint32_t rp_addr = buffer_start + 4;
 944         uint32_t fifo_start_addr = buffer_start + 8;
 945         uint32_t fifo_end_addr = buffer_start + buffer_size;
 946
 947         uint32_t wp = fifo_start_addr;
 948         uint32_t rp = fifo_start_addr;
 949
 950         /* validate block_size is 2^n */
 951         assert(!block_size || !(block_size & (block_size - 1)));
 952
 953         retval = target_write_u32(target, wp_addr, wp);
 954         if (retval != ERROR_OK)
 955                 return retval;
 956         retval = target_write_u32(target, rp_addr, rp);
 957         if (retval != ERROR_OK)
 958                 return retval;
 959
 960         /* Start up algorithm on target and let it idle while writing the first chunk */
 961         retval = target_start_algorithm(target, num_mem_params, mem_params,
 962                         num_reg_params, reg_params,
 963                         entry_point,
 964                         exit_point,
 965                         arch_info);
 966
 967         if (retval != ERROR_OK) {
 968                 LOG_ERROR("error starting target flash write algorithm");
 969                 return retval;
 970         }
 971
 972         while (count > 0) {
 973
 974                 retval = target_read_u32(target, rp_addr, &rp);
 975                 if (retval != ERROR_OK) {
 976                         LOG_ERROR("failed to get read pointer");
 977                         break;
 978                 }
 979
 980                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 981                         (size_t) (buffer - buffer_orig), count, wp, rp);
 982
 983                 if (rp == 0) {
 984                         LOG_ERROR("flash write algorithm aborted by target");
 985                         retval = ERROR_FLASH_OPERATION_FAILED;
 986                         break;
 987                 }
 988
 989                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 990                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 991                         break;
 992                 }
 993
 994                 /* Count the number of bytes available in the fifo without
 995                  * crossing the wrap around. Make sure to not fill it completely,
 996                  * because that would make wp == rp and that's the empty condition. */
 997                 uint32_t thisrun_bytes;
 998                 if (rp > wp)
 999                         thisrun_bytes = rp - wp - block_size;
1000                 else if (rp > fifo_start_addr)
1001                         thisrun_bytes = fifo_end_addr - wp;
1002                 else
1003                         thisrun_bytes = fifo_end_addr - wp - block_size;
1004
1005                 if (thisrun_bytes == 0) {
1006                         /* Throttle polling a bit if transfer is (much) faster than flash
1007                          * programming. The exact delay shouldn't matter as long as it's
1008                          * less than buffer size / flash speed. This is very unlikely to
1009                          * run when using high latency connections such as USB. */
1010                         alive_sleep(10);
1011
1012                         /* to stop an infinite loop on some targets check and increment a timeout
1013                          * this issue was observed on a stellaris using the new ICDI interface */
1014                         if (timeout++ >= 500) {
1015                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1016                                 return ERROR_FLASH_OPERATION_FAILED;
1017                         }
1018                         continue;
1019                 }
1020
1021                 /* reset our timeout */
1022                 timeout = 0;
1023
1024                 /* Limit to the amount of data we actually want to write */
1025                 if (thisrun_bytes > count * block_size)
1026                         thisrun_bytes = count * block_size;
1027
1028                 /* Write data to fifo */
1029                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1030                 if (retval != ERROR_OK)
1031                         break;
1032
1033                 /* Update counters and wrap write pointer */
1034                 buffer += thisrun_bytes;
1035                 count -= thisrun_bytes / block_size;
1036                 wp += thisrun_bytes;
1037                 if (wp >= fifo_end_addr)
1038                         wp = fifo_start_addr;
1039
1040                 /* Store updated write pointer to target */
1041                 retval = target_write_u32(target, wp_addr, wp);
1042                 if (retval != ERROR_OK)
1043                         break;
1044         }
1045
1046         if (retval != ERROR_OK) {
1047                 /* abort flash write algorithm on target */
1048                 target_write_u32(target, wp_addr, 0);
1049         }
1050
1051         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1052                         num_reg_params, reg_params,
1053                         exit_point,
1054                         10000,
1055                         arch_info);
1056
1057         if (retval2 != ERROR_OK) {
1058                 LOG_ERROR("error waiting for target flash write algorithm");
1059                 retval = retval2;
1060         }
1061
1062         if (retval == ERROR_OK) {
1063                 /* check if algorithm set rp = 0 after fifo writer loop finished */
1064                 retval = target_read_u32(target, rp_addr, &rp);
1065                 if (retval == ERROR_OK && rp == 0) {
1066                         LOG_ERROR("flash write algorithm aborted by target");
1067                         retval = ERROR_FLASH_OPERATION_FAILED;
1068                 }
1069         }
1070
1071         return retval;
1072 }
1073
1074 int target_read_memory(struct target *target,
1075                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1076 {
1077         if (!target_was_examined(target)) {
1078                 LOG_ERROR("Target not examined yet");
1079                 return ERROR_FAIL;
1080         }
1081         if (!target->type->read_memory) {
1082                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1083                 return ERROR_FAIL;
1084         }
1085         return target->type->read_memory(target, address, size, count, buffer);
1086 }
1087
1088 int target_read_phys_memory(struct target *target,
1089                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1090 {
1091         if (!target_was_examined(target)) {
1092                 LOG_ERROR("Target not examined yet");
1093                 return ERROR_FAIL;
1094         }
1095         if (!target->type->read_phys_memory) {
1096                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1097                 return ERROR_FAIL;
1098         }
1099         return target->type->read_phys_memory(target, address, size, count, buffer);
1100 }
1101
1102 int target_write_memory(struct target *target,
1103                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1104 {
1105         if (!target_was_examined(target)) {
1106                 LOG_ERROR("Target not examined yet");
1107                 return ERROR_FAIL;
1108         }
1109         if (!target->type->write_memory) {
1110                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1111                 return ERROR_FAIL;
1112         }
1113         return target->type->write_memory(target, address, size, count, buffer);
1114 }
1115
1116 int target_write_phys_memory(struct target *target,
1117                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1118 {
1119         if (!target_was_examined(target)) {
1120                 LOG_ERROR("Target not examined yet");
1121                 return ERROR_FAIL;
1122         }
1123         if (!target->type->write_phys_memory) {
1124                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1125                 return ERROR_FAIL;
1126         }
1127         return target->type->write_phys_memory(target, address, size, count, buffer);
1128 }
1129
1130 int target_add_breakpoint(struct target *target,
1131                 struct breakpoint *breakpoint)
1132 {
1133         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1134                 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1135                 return ERROR_TARGET_NOT_HALTED;
1136         }
1137         return target->type->add_breakpoint(target, breakpoint);
1138 }
1139
1140 int target_add_context_breakpoint(struct target *target,
1141                 struct breakpoint *breakpoint)
1142 {
1143         if (target->state != TARGET_HALTED) {
1144                 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1145                 return ERROR_TARGET_NOT_HALTED;
1146         }
1147         return target->type->add_context_breakpoint(target, breakpoint);
1148 }
1149
1150 int target_add_hybrid_breakpoint(struct target *target,
1151                 struct breakpoint *breakpoint)
1152 {
1153         if (target->state != TARGET_HALTED) {
1154                 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1155                 return ERROR_TARGET_NOT_HALTED;
1156         }
1157         return target->type->add_hybrid_breakpoint(target, breakpoint);
1158 }
1159
1160 int target_remove_breakpoint(struct target *target,
1161                 struct breakpoint *breakpoint)
1162 {
1163         return target->type->remove_breakpoint(target, breakpoint);
1164 }
1165
1166 int target_add_watchpoint(struct target *target,
1167                 struct watchpoint *watchpoint)
1168 {
1169         if (target->state != TARGET_HALTED) {
1170                 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1171                 return ERROR_TARGET_NOT_HALTED;
1172         }
1173         return target->type->add_watchpoint(target, watchpoint);
1174 }
1175 int target_remove_watchpoint(struct target *target,
1176                 struct watchpoint *watchpoint)
1177 {
1178         return target->type->remove_watchpoint(target, watchpoint);
1179 }
1180 int target_hit_watchpoint(struct target *target,
1181                 struct watchpoint **hit_watchpoint)
1182 {
1183         if (target->state != TARGET_HALTED) {
1184                 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1185                 return ERROR_TARGET_NOT_HALTED;
1186         }
1187
1188         if (target->type->hit_watchpoint == NULL) {
1189                 /* For backward compatible, if hit_watchpoint is not implemented,
1190                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1191                  * information. */
1192                 return ERROR_FAIL;
1193         }
1194
1195         return target->type->hit_watchpoint(target, hit_watchpoint);
1196 }
1197
1198 int target_get_gdb_reg_list(struct target *target,
1199                 struct reg **reg_list[], int *reg_list_size,
1200                 enum target_register_class reg_class)
1201 {
1202         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1203 }
1204 int target_step(struct target *target,
1205                 int current, target_addr_t address, int handle_breakpoints)
1206 {
1207         return target->type->step(target, current, address, handle_breakpoints);
1208 }
1209
1210 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1211 {
1212         if (target->state != TARGET_HALTED) {
1213                 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1214                 return ERROR_TARGET_NOT_HALTED;
1215         }
1216         return target->type->get_gdb_fileio_info(target, fileio_info);
1217 }
1218
1219 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1220 {
1221         if (target->state != TARGET_HALTED) {
1222                 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1223                 return ERROR_TARGET_NOT_HALTED;
1224         }
1225         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1226 }
1227
1228 int target_profiling(struct target *target, uint32_t *samples,
1229                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1230 {
1231         if (target->state != TARGET_HALTED) {
1232                 LOG_WARNING("target %s is not halted (profiling)", target->cmd_name);
1233                 return ERROR_TARGET_NOT_HALTED;
1234         }
1235         return target->type->profiling(target, samples, max_num_samples,
1236                         num_samples, seconds);
1237 }
1238
1239 /**
1240  * Reset the @c examined flag for the given target.
1241  * Pure paranoia -- targets are zeroed on allocation.
1242  */
1243 static void target_reset_examined(struct target *target)
1244 {
1245         target->examined = false;
1246 }
1247
1248 static int handle_target(void *priv);
1249
1250 static int target_init_one(struct command_context *cmd_ctx,
1251                 struct target *target)
1252 {
1253         target_reset_examined(target);
1254
1255         struct target_type *type = target->type;
1256         if (type->examine == NULL)
1257                 type->examine = default_examine;
1258
1259         if (type->check_reset == NULL)
1260                 type->check_reset = default_check_reset;
1261
1262         assert(type->init_target != NULL);
1263
1264         int retval = type->init_target(cmd_ctx, target);
1265         if (ERROR_OK != retval) {
1266                 LOG_ERROR("target '%s' init failed", target_name(target));
1267                 return retval;
1268         }
1269
1270         /* Sanity-check MMU support ... stub in what we must, to help
1271          * implement it in stages, but warn if we need to do so.
1272          */
1273         if (type->mmu) {
1274                 if (type->virt2phys == NULL) {
1275                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1276                         type->virt2phys = identity_virt2phys;
1277                 }
1278         } else {
1279                 /* Make sure no-MMU targets all behave the same:  make no
1280                  * distinction between physical and virtual addresses, and
1281                  * ensure that virt2phys() is always an identity mapping.
1282                  */
1283                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1284                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1285
1286                 type->mmu = no_mmu;
1287                 type->write_phys_memory = type->write_memory;
1288                 type->read_phys_memory = type->read_memory;
1289                 type->virt2phys = identity_virt2phys;
1290         }
1291
1292         if (target->type->read_buffer == NULL)
1293                 target->type->read_buffer = target_read_buffer_default;
1294
1295         if (target->type->write_buffer == NULL)
1296                 target->type->write_buffer = target_write_buffer_default;
1297
1298         if (target->type->get_gdb_fileio_info == NULL)
1299                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1300
1301         if (target->type->gdb_fileio_end == NULL)
1302                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1303
1304         if (target->type->profiling == NULL)
1305                 target->type->profiling = target_profiling_default;
1306
1307         return ERROR_OK;
1308 }
1309
1310 static int target_init(struct command_context *cmd_ctx)
1311 {
1312         struct target *target;
1313         int retval;
1314
1315         for (target = all_targets; target; target = target->next) {
1316                 retval = target_init_one(cmd_ctx, target);
1317                 if (ERROR_OK != retval)
1318                         return retval;
1319         }
1320
1321         if (!all_targets)
1322                 return ERROR_OK;
1323
1324         retval = target_register_user_commands(cmd_ctx);
1325         if (ERROR_OK != retval)
1326                 return retval;
1327
1328         retval = target_register_timer_callback(&handle_target,
1329                         polling_interval, 1, cmd_ctx->interp);
1330         if (ERROR_OK != retval)
1331                 return retval;
1332
1333         return ERROR_OK;
1334 }
1335
1336 COMMAND_HANDLER(handle_target_init_command)
1337 {
1338         int retval;
1339
1340         if (CMD_ARGC != 0)
1341                 return ERROR_COMMAND_SYNTAX_ERROR;
1342
1343         static bool target_initialized;
1344         if (target_initialized) {
1345                 LOG_INFO("'target init' has already been called");
1346                 return ERROR_OK;
1347         }
1348         target_initialized = true;
1349
1350         retval = command_run_line(CMD_CTX, "init_targets");
1351         if (ERROR_OK != retval)
1352                 return retval;
1353
1354         retval = command_run_line(CMD_CTX, "init_target_events");
1355         if (ERROR_OK != retval)
1356                 return retval;
1357
1358         retval = command_run_line(CMD_CTX, "init_board");
1359         if (ERROR_OK != retval)
1360                 return retval;
1361
1362         LOG_DEBUG("Initializing targets...");
1363         return target_init(CMD_CTX);
1364 }
1365
1366 int target_register_event_callback(int (*callback)(struct target *target,
1367                 enum target_event event, void *priv), void *priv)
1368 {
1369         struct target_event_callback **callbacks_p = &target_event_callbacks;
1370
1371         if (callback == NULL)
1372                 return ERROR_COMMAND_SYNTAX_ERROR;
1373
1374         if (*callbacks_p) {
1375                 while ((*callbacks_p)->next)
1376                         callbacks_p = &((*callbacks_p)->next);
1377                 callbacks_p = &((*callbacks_p)->next);
1378         }
1379
1380         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1381         (*callbacks_p)->callback = callback;
1382         (*callbacks_p)->priv = priv;
1383         (*callbacks_p)->next = NULL;
1384
1385         return ERROR_OK;
1386 }
1387
1388 int target_register_reset_callback(int (*callback)(struct target *target,
1389                 enum target_reset_mode reset_mode, void *priv), void *priv)
1390 {
1391         struct target_reset_callback *entry;
1392
1393         if (callback == NULL)
1394                 return ERROR_COMMAND_SYNTAX_ERROR;
1395
1396         entry = malloc(sizeof(struct target_reset_callback));
1397         if (entry == NULL) {
1398                 LOG_ERROR("error allocating buffer for reset callback entry");
1399                 return ERROR_COMMAND_SYNTAX_ERROR;
1400         }
1401
1402         entry->callback = callback;
1403         entry->priv = priv;
1404         list_add(&entry->list, &target_reset_callback_list);
1405
1406
1407         return ERROR_OK;
1408 }
1409
1410 int target_register_trace_callback(int (*callback)(struct target *target,
1411                 size_t len, uint8_t *data, void *priv), void *priv)
1412 {
1413         struct target_trace_callback *entry;
1414
1415         if (callback == NULL)
1416                 return ERROR_COMMAND_SYNTAX_ERROR;
1417
1418         entry = malloc(sizeof(struct target_trace_callback));
1419         if (entry == NULL) {
1420                 LOG_ERROR("error allocating buffer for trace callback entry");
1421                 return ERROR_COMMAND_SYNTAX_ERROR;
1422         }
1423
1424         entry->callback = callback;
1425         entry->priv = priv;
1426         list_add(&entry->list, &target_trace_callback_list);
1427
1428
1429         return ERROR_OK;
1430 }
1431
1432 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1433 {
1434         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1435
1436         if (callback == NULL)
1437                 return ERROR_COMMAND_SYNTAX_ERROR;
1438
1439         if (*callbacks_p) {
1440                 while ((*callbacks_p)->next)
1441                         callbacks_p = &((*callbacks_p)->next);
1442                 callbacks_p = &((*callbacks_p)->next);
1443         }
1444
1445         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1446         (*callbacks_p)->callback = callback;
1447         (*callbacks_p)->periodic = periodic;
1448         (*callbacks_p)->time_ms = time_ms;
1449         (*callbacks_p)->removed = false;
1450
1451         gettimeofday(&(*callbacks_p)->when, NULL);
1452         timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1453
1454         (*callbacks_p)->priv = priv;
1455         (*callbacks_p)->next = NULL;
1456
1457         return ERROR_OK;
1458 }
1459
1460 int target_unregister_event_callback(int (*callback)(struct target *target,
1461                 enum target_event event, void *priv), void *priv)
1462 {
1463         struct target_event_callback **p = &target_event_callbacks;
1464         struct target_event_callback *c = target_event_callbacks;
1465
1466         if (callback == NULL)
1467                 return ERROR_COMMAND_SYNTAX_ERROR;
1468
1469         while (c) {
1470                 struct target_event_callback *next = c->next;
1471                 if ((c->callback == callback) && (c->priv == priv)) {
1472                         *p = next;
1473                         free(c);
1474                         return ERROR_OK;
1475                 } else
1476                         p = &(c->next);
1477                 c = next;
1478         }
1479
1480         return ERROR_OK;
1481 }
1482
1483 int target_unregister_reset_callback(int (*callback)(struct target *target,
1484                 enum target_reset_mode reset_mode, void *priv), void *priv)
1485 {
1486         struct target_reset_callback *entry;
1487
1488         if (callback == NULL)
1489                 return ERROR_COMMAND_SYNTAX_ERROR;
1490
1491         list_for_each_entry(entry, &target_reset_callback_list, list) {
1492                 if (entry->callback == callback && entry->priv == priv) {
1493                         list_del(&entry->list);
1494                         free(entry);
1495                         break;
1496                 }
1497         }
1498
1499         return ERROR_OK;
1500 }
1501
1502 int target_unregister_trace_callback(int (*callback)(struct target *target,
1503                 size_t len, uint8_t *data, void *priv), void *priv)
1504 {
1505         struct target_trace_callback *entry;
1506
1507         if (callback == NULL)
1508                 return ERROR_COMMAND_SYNTAX_ERROR;
1509
1510         list_for_each_entry(entry, &target_trace_callback_list, list) {
1511                 if (entry->callback == callback && entry->priv == priv) {
1512                         list_del(&entry->list);
1513                         free(entry);
1514                         break;
1515                 }
1516         }
1517
1518         return ERROR_OK;
1519 }
1520
1521 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1522 {
1523         if (callback == NULL)
1524                 return ERROR_COMMAND_SYNTAX_ERROR;
1525
1526         for (struct target_timer_callback *c = target_timer_callbacks;
1527              c; c = c->next) {
1528                 if ((c->callback == callback) && (c->priv == priv)) {
1529                         c->removed = true;
1530                         return ERROR_OK;
1531                 }
1532         }
1533
1534         return ERROR_FAIL;
1535 }
1536
1537 int target_call_event_callbacks(struct target *target, enum target_event event)
1538 {
1539         struct target_event_callback *callback = target_event_callbacks;
1540         struct target_event_callback *next_callback;
1541
1542         if (event == TARGET_EVENT_HALTED) {
1543                 /* execute early halted first */
1544                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1545         }
1546
1547         LOG_DEBUG("target event %i (%s)", event,
1548                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1549
1550         target_handle_event(target, event);
1551
1552         while (callback) {
1553                 next_callback = callback->next;
1554                 callback->callback(target, event, callback->priv);
1555                 callback = next_callback;
1556         }
1557
1558         return ERROR_OK;
1559 }
1560
1561 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1562 {
1563         struct target_reset_callback *callback;
1564
1565         LOG_DEBUG("target reset %i (%s)", reset_mode,
1566                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1567
1568         list_for_each_entry(callback, &target_reset_callback_list, list)
1569                 callback->callback(target, reset_mode, callback->priv);
1570
1571         return ERROR_OK;
1572 }
1573
1574 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1575 {
1576         struct target_trace_callback *callback;
1577
1578         list_for_each_entry(callback, &target_trace_callback_list, list)
1579                 callback->callback(target, len, data, callback->priv);
1580
1581         return ERROR_OK;
1582 }
1583
1584 static int target_timer_callback_periodic_restart(
1585                 struct target_timer_callback *cb, struct timeval *now)
1586 {
1587         cb->when = *now;
1588         timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1589         return ERROR_OK;
1590 }
1591
1592 static int target_call_timer_callback(struct target_timer_callback *cb,
1593                 struct timeval *now)
1594 {
1595         cb->callback(cb->priv);
1596
1597         if (cb->periodic)
1598                 return target_timer_callback_periodic_restart(cb, now);
1599
1600         return target_unregister_timer_callback(cb->callback, cb->priv);
1601 }
1602
1603 static int target_call_timer_callbacks_check_time(int checktime)
1604 {
1605         static bool callback_processing;
1606
1607         /* Do not allow nesting */
1608         if (callback_processing)
1609                 return ERROR_OK;
1610
1611         callback_processing = true;
1612
1613         keep_alive();
1614
1615         struct timeval now;
1616         gettimeofday(&now, NULL);
1617
1618         /* Store an address of the place containing a pointer to the
1619          * next item; initially, that's a standalone "root of the
1620          * list" variable. */
1621         struct target_timer_callback **callback = &target_timer_callbacks;
1622         while (*callback) {
1623                 if ((*callback)->removed) {
1624                         struct target_timer_callback *p = *callback;
1625                         *callback = (*callback)->next;
1626                         free(p);
1627                         continue;
1628                 }
1629
1630                 bool call_it = (*callback)->callback &&
1631                         ((!checktime && (*callback)->periodic) ||
1632                          timeval_compare(&now, &(*callback)->when) >= 0);
1633
1634                 if (call_it)
1635                         target_call_timer_callback(*callback, &now);
1636
1637                 callback = &(*callback)->next;
1638         }
1639
1640         callback_processing = false;
1641         return ERROR_OK;
1642 }
1643
1644 int target_call_timer_callbacks(void)
1645 {
1646         return target_call_timer_callbacks_check_time(1);
1647 }
1648
1649 /* invoke periodic callbacks immediately */
1650 int target_call_timer_callbacks_now(void)
1651 {
1652         return target_call_timer_callbacks_check_time(0);
1653 }
1654
1655 /* Prints the working area layout for debug purposes */
1656 static void print_wa_layout(struct target *target)
1657 {
1658         struct working_area *c = target->working_areas;
1659
1660         while (c) {
1661                 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1662                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1663                         c->address, c->address + c->size - 1, c->size);
1664                 c = c->next;
1665         }
1666 }
1667
1668 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1669 static void target_split_working_area(struct working_area *area, uint32_t size)
1670 {
1671         assert(area->free); /* Shouldn't split an allocated area */
1672         assert(size <= area->size); /* Caller should guarantee this */
1673
1674         /* Split only if not already the right size */
1675         if (size < area->size) {
1676                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1677
1678                 if (new_wa == NULL)
1679                         return;
1680
1681                 new_wa->next = area->next;
1682                 new_wa->size = area->size - size;
1683                 new_wa->address = area->address + size;
1684                 new_wa->backup = NULL;
1685                 new_wa->user = NULL;
1686                 new_wa->free = true;
1687
1688                 area->next = new_wa;
1689                 area->size = size;
1690
1691                 /* If backup memory was allocated to this area, it has the wrong size
1692                  * now so free it and it will be reallocated if/when needed */
1693                 if (area->backup) {
1694                         free(area->backup);
1695                         area->backup = NULL;
1696                 }
1697         }
1698 }
1699
1700 /* Merge all adjacent free areas into one */
1701 static void target_merge_working_areas(struct target *target)
1702 {
1703         struct working_area *c = target->working_areas;
1704
1705         while (c && c->next) {
1706                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1707
1708                 /* Find two adjacent free areas */
1709                 if (c->free && c->next->free) {
1710                         /* Merge the last into the first */
1711                         c->size += c->next->size;
1712
1713                         /* Remove the last */
1714                         struct working_area *to_be_freed = c->next;
1715                         c->next = c->next->next;
1716                         if (to_be_freed->backup)
1717                                 free(to_be_freed->backup);
1718                         free(to_be_freed);
1719
1720                         /* If backup memory was allocated to the remaining area, it's has
1721                          * the wrong size now */
1722                         if (c->backup) {
1723                                 free(c->backup);
1724                                 c->backup = NULL;
1725                         }
1726                 } else {
1727                         c = c->next;
1728                 }
1729         }
1730 }
1731
1732 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1733 {
1734         /* Reevaluate working area address based on MMU state*/
1735         if (target->working_areas == NULL) {
1736                 int retval;
1737                 int enabled;
1738
1739                 retval = target->type->mmu(target, &enabled);
1740                 if (retval != ERROR_OK)
1741                         return retval;
1742
1743                 if (!enabled) {
1744                         if (target->working_area_phys_spec) {
1745                                 LOG_DEBUG("MMU disabled, using physical "
1746                                         "address for working memory " TARGET_ADDR_FMT,
1747                                         target->working_area_phys);
1748                                 target->working_area = target->working_area_phys;
1749                         } else {
1750                                 LOG_ERROR("No working memory available. "
1751                                         "Specify -work-area-phys to target.");
1752                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1753                         }
1754                 } else {
1755                         if (target->working_area_virt_spec) {
1756                                 LOG_DEBUG("MMU enabled, using virtual "
1757                                         "address for working memory " TARGET_ADDR_FMT,
1758                                         target->working_area_virt);
1759                                 target->working_area = target->working_area_virt;
1760                         } else {
1761                                 LOG_ERROR("No working memory available. "
1762                                         "Specify -work-area-virt to target.");
1763                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1764                         }
1765                 }
1766
1767                 /* Set up initial working area on first call */
1768                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1769                 if (new_wa) {
1770                         new_wa->next = NULL;
1771                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1772                         new_wa->address = target->working_area;
1773                         new_wa->backup = NULL;
1774                         new_wa->user = NULL;
1775                         new_wa->free = true;
1776                 }
1777
1778                 target->working_areas = new_wa;
1779         }
1780
1781         /* only allocate multiples of 4 byte */
1782         if (size % 4)
1783                 size = (size + 3) & (~3UL);
1784
1785         struct working_area *c = target->working_areas;
1786
1787         /* Find the first large enough working area */
1788         while (c) {
1789                 if (c->free && c->size >= size)
1790                         break;
1791                 c = c->next;
1792         }
1793
1794         if (c == NULL)
1795                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1796
1797         /* Split the working area into the requested size */
1798         target_split_working_area(c, size);
1799
1800         LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
1801                           size, c->address);
1802
1803         if (target->backup_working_area) {
1804                 if (c->backup == NULL) {
1805                         c->backup = malloc(c->size);
1806                         if (c->backup == NULL)
1807                                 return ERROR_FAIL;
1808                 }
1809
1810                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1811                 if (retval != ERROR_OK)
1812                         return retval;
1813         }
1814
1815         /* mark as used, and return the new (reused) area */
1816         c->free = false;
1817         *area = c;
1818
1819         /* user pointer */
1820         c->user = area;
1821
1822         print_wa_layout(target);
1823
1824         return ERROR_OK;
1825 }
1826
1827 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1828 {
1829         int retval;
1830
1831         retval = target_alloc_working_area_try(target, size, area);
1832         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1833                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1834         return retval;
1835
1836 }
1837
1838 static int target_restore_working_area(struct target *target, struct working_area *area)
1839 {
1840         int retval = ERROR_OK;
1841
1842         if (target->backup_working_area && area->backup != NULL) {
1843                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1844                 if (retval != ERROR_OK)
1845                         LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1846                                         area->size, area->address);
1847         }
1848
1849         return retval;
1850 }
1851
1852 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1853 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1854 {
1855         int retval = ERROR_OK;
1856
1857         if (area->free)
1858                 return retval;
1859
1860         if (restore) {
1861                 retval = target_restore_working_area(target, area);
1862                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1863                 if (retval != ERROR_OK)
1864                         return retval;
1865         }
1866
1867         area->free = true;
1868
1869         LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1870                         area->size, area->address);
1871
1872         /* mark user pointer invalid */
1873         /* TODO: Is this really safe? It points to some previous caller's memory.
1874          * How could we know that the area pointer is still in that place and not
1875          * some other vital data? What's the purpose of this, anyway? */
1876         *area->user = NULL;
1877         area->user = NULL;
1878
1879         target_merge_working_areas(target);
1880
1881         print_wa_layout(target);
1882
1883         return retval;
1884 }
1885
1886 int target_free_working_area(struct target *target, struct working_area *area)
1887 {
1888         return target_free_working_area_restore(target, area, 1);
1889 }
1890
1891 static void target_destroy(struct target *target)
1892 {
1893         if (target->type->deinit_target)
1894                 target->type->deinit_target(target);
1895
1896         jtag_unregister_event_callback(jtag_enable_callback, target);
1897
1898         struct target_event_action *teap = target->event_action;
1899         while (teap) {
1900                 struct target_event_action *next = teap->next;
1901                 Jim_DecrRefCount(teap->interp, teap->body);
1902                 free(teap);
1903                 teap = next;
1904         }
1905
1906         target_free_all_working_areas(target);
1907         /* Now we have none or only one working area marked as free */
1908         if (target->working_areas) {
1909                 free(target->working_areas->backup);
1910                 free(target->working_areas);
1911         }
1912
1913         /* release the targets SMP list */
1914         if (target->smp) {
1915                 struct target_list *head = target->head;
1916                 while (head != NULL) {
1917                         struct target_list *pos = head->next;
1918                         head->target->smp = 0;
1919                         free(head);
1920                         head = pos;
1921                 }
1922                 target->smp = 0;
1923         }
1924
1925         free(target->type);
1926         free(target->trace_info);
1927         free(target->fileio_info);
1928         free(target->cmd_name);
1929         free(target);
1930 }
1931
1932 void target_quit(void)
1933 {
1934         struct target_event_callback *pe = target_event_callbacks;
1935         while (pe) {
1936                 struct target_event_callback *t = pe->next;
1937                 free(pe);
1938                 pe = t;
1939         }
1940         target_event_callbacks = NULL;
1941
1942         struct target_timer_callback *pt = target_timer_callbacks;
1943         while (pt) {
1944                 struct target_timer_callback *t = pt->next;
1945                 free(pt);
1946                 pt = t;
1947         }
1948         target_timer_callbacks = NULL;
1949
1950         for (struct target *target = all_targets; target;) {
1951                 struct target *tmp;
1952
1953                 tmp = target->next;
1954                 target_destroy(target);
1955                 target = tmp;
1956         }
1957
1958         all_targets = NULL;
1959 }
1960
1961 /* free resources and restore memory, if restoring memory fails,
1962  * free up resources anyway
1963  */
1964 static void target_free_all_working_areas_restore(struct target *target, int restore)
1965 {
1966         struct working_area *c = target->working_areas;
1967
1968         LOG_DEBUG("freeing all working areas");
1969
1970         /* Loop through all areas, restoring the allocated ones and marking them as free */
1971         while (c) {
1972                 if (!c->free) {
1973                         if (restore)
1974                                 target_restore_working_area(target, c);
1975                         c->free = true;
1976                         *c->user = NULL; /* Same as above */
1977                         c->user = NULL;
1978                 }
1979                 c = c->next;
1980         }
1981
1982         /* Run a merge pass to combine all areas into one */
1983         target_merge_working_areas(target);
1984
1985         print_wa_layout(target);
1986 }
1987
1988 void target_free_all_working_areas(struct target *target)
1989 {
1990         target_free_all_working_areas_restore(target, 1);
1991 }
1992
1993 /* Find the largest number of bytes that can be allocated */
1994 uint32_t target_get_working_area_avail(struct target *target)
1995 {
1996         struct working_area *c = target->working_areas;
1997         uint32_t max_size = 0;
1998
1999         if (c == NULL)
2000                 return target->working_area_size;
2001
2002         while (c) {
2003                 if (c->free && max_size < c->size)
2004                         max_size = c->size;
2005
2006                 c = c->next;
2007         }
2008
2009         return max_size;
2010 }
2011
2012 int target_arch_state(struct target *target)
2013 {
2014         int retval;
2015         if (target == NULL) {
2016                 LOG_WARNING("No target has been configured");
2017                 return ERROR_OK;
2018         }
2019
2020         if (target->state != TARGET_HALTED)
2021                 return ERROR_OK;
2022
2023         retval = target->type->arch_state(target);
2024         return retval;
2025 }
2026
2027 static int target_get_gdb_fileio_info_default(struct target *target,
2028                 struct gdb_fileio_info *fileio_info)
2029 {
2030         /* If target does not support semi-hosting function, target
2031            has no need to provide .get_gdb_fileio_info callback.
2032            It just return ERROR_FAIL and gdb_server will return "Txx"
2033            as target halted every time.  */
2034         return ERROR_FAIL;
2035 }
2036
2037 static int target_gdb_fileio_end_default(struct target *target,
2038                 int retcode, int fileio_errno, bool ctrl_c)
2039 {
2040         return ERROR_OK;
2041 }
2042
2043 static int target_profiling_default(struct target *target, uint32_t *samples,
2044                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2045 {
2046         struct timeval timeout, now;
2047
2048         gettimeofday(&timeout, NULL);
2049         timeval_add_time(&timeout, seconds, 0);
2050
2051         LOG_INFO("Starting profiling. Halting and resuming the"
2052                         " target as often as we can...");
2053
2054         uint32_t sample_count = 0;
2055         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2056         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
2057
2058         int retval = ERROR_OK;
2059         for (;;) {
2060                 target_poll(target);
2061                 if (target->state == TARGET_HALTED) {
2062                         uint32_t t = buf_get_u32(reg->value, 0, 32);
2063                         samples[sample_count++] = t;
2064                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
2065                         retval = target_resume(target, 1, 0, 0, 0);
2066                         target_poll(target);
2067                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2068                 } else if (target->state == TARGET_RUNNING) {
2069                         /* We want to quickly sample the PC. */
2070                         retval = target_halt(target);
2071                 } else {
2072                         LOG_INFO("Target not halted or running");
2073                         retval = ERROR_OK;
2074                         break;
2075                 }
2076
2077                 if (retval != ERROR_OK)
2078                         break;
2079
2080                 gettimeofday(&now, NULL);
2081                 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2082                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2083                         break;
2084                 }
2085         }
2086
2087         *num_samples = sample_count;
2088         return retval;
2089 }
2090
2091 /* Single aligned words are guaranteed to use 16 or 32 bit access
2092  * mode respectively, otherwise data is handled as quickly as
2093  * possible
2094  */
2095 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2096 {
2097         LOG_DEBUG("writing buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2098                           size, address);
2099
2100         if (!target_was_examined(target)) {
2101                 LOG_ERROR("Target not examined yet");
2102                 return ERROR_FAIL;
2103         }
2104
2105         if (size == 0)
2106                 return ERROR_OK;
2107
2108         if ((address + size - 1) < address) {
2109                 /* GDB can request this when e.g. PC is 0xfffffffc */
2110                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2111                                   address,
2112                                   size);
2113                 return ERROR_FAIL;
2114         }
2115
2116         return target->type->write_buffer(target, address, size, buffer);
2117 }
2118
2119 static int target_write_buffer_default(struct target *target,
2120         target_addr_t address, uint32_t count, const uint8_t *buffer)
2121 {
2122         uint32_t size;
2123
2124         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2125          * will have something to do with the size we leave to it. */
2126         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2127                 if (address & size) {
2128                         int retval = target_write_memory(target, address, size, 1, buffer);
2129                         if (retval != ERROR_OK)
2130                                 return retval;
2131                         address += size;
2132                         count -= size;
2133                         buffer += size;
2134                 }
2135         }
2136
2137         /* Write the data with as large access size as possible. */
2138         for (; size > 0; size /= 2) {
2139                 uint32_t aligned = count - count % size;
2140                 if (aligned > 0) {
2141                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2142                         if (retval != ERROR_OK)
2143                                 return retval;
2144                         address += aligned;
2145                         count -= aligned;
2146                         buffer += aligned;
2147                 }
2148         }
2149
2150         return ERROR_OK;
2151 }
2152
2153 /* Single aligned words are guaranteed to use 16 or 32 bit access
2154  * mode respectively, otherwise data is handled as quickly as
2155  * possible
2156  */
2157 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2158 {
2159         LOG_DEBUG("reading buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2160                           size, address);
2161
2162         if (!target_was_examined(target)) {
2163                 LOG_ERROR("Target not examined yet");
2164                 return ERROR_FAIL;
2165         }
2166
2167         if (size == 0)
2168                 return ERROR_OK;
2169
2170         if ((address + size - 1) < address) {
2171                 /* GDB can request this when e.g. PC is 0xfffffffc */
2172                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2173                                   address,
2174                                   size);
2175                 return ERROR_FAIL;
2176         }
2177
2178         return target->type->read_buffer(target, address, size, buffer);
2179 }
2180
2181 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2182 {
2183         uint32_t size;
2184
2185         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2186          * will have something to do with the size we leave to it. */
2187         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2188                 if (address & size) {
2189                         int retval = target_read_memory(target, address, size, 1, buffer);
2190                         if (retval != ERROR_OK)
2191                                 return retval;
2192                         address += size;
2193                         count -= size;
2194                         buffer += size;
2195                 }
2196         }
2197
2198         /* Read the data with as large access size as possible. */
2199         for (; size > 0; size /= 2) {
2200                 uint32_t aligned = count - count % size;
2201                 if (aligned > 0) {
2202                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2203                         if (retval != ERROR_OK)
2204                                 return retval;
2205                         address += aligned;
2206                         count -= aligned;
2207                         buffer += aligned;
2208                 }
2209         }
2210
2211         return ERROR_OK;
2212 }
2213
2214 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* crc)
2215 {
2216         uint8_t *buffer;
2217         int retval;
2218         uint32_t i;
2219         uint32_t checksum = 0;
2220         if (!target_was_examined(target)) {
2221                 LOG_ERROR("Target not examined yet");
2222                 return ERROR_FAIL;
2223         }
2224
2225         retval = target->type->checksum_memory(target, address, size, &checksum);
2226         if (retval != ERROR_OK) {
2227                 buffer = malloc(size);
2228                 if (buffer == NULL) {
2229                         LOG_ERROR("error allocating buffer for section (%" PRId32 " bytes)", size);
2230                         return ERROR_COMMAND_SYNTAX_ERROR;
2231                 }
2232                 retval = target_read_buffer(target, address, size, buffer);
2233                 if (retval != ERROR_OK) {
2234                         free(buffer);
2235                         return retval;
2236                 }
2237
2238                 /* convert to target endianness */
2239                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2240                         uint32_t target_data;
2241                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2242                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2243                 }
2244
2245                 retval = image_calculate_checksum(buffer, size, &checksum);
2246                 free(buffer);
2247         }
2248
2249         *crc = checksum;
2250
2251         return retval;
2252 }
2253
2254 int target_blank_check_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* blank,
2255         uint8_t erased_value)
2256 {
2257         int retval;
2258         if (!target_was_examined(target)) {
2259                 LOG_ERROR("Target not examined yet");
2260                 return ERROR_FAIL;
2261         }
2262
2263         if (target->type->blank_check_memory == 0)
2264                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2265
2266         retval = target->type->blank_check_memory(target, address, size, blank, erased_value);
2267
2268         return retval;
2269 }
2270
2271 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2272 {
2273         uint8_t value_buf[8];
2274         if (!target_was_examined(target)) {
2275                 LOG_ERROR("Target not examined yet");
2276                 return ERROR_FAIL;
2277         }
2278
2279         int retval = target_read_memory(target, address, 8, 1, value_buf);
2280
2281         if (retval == ERROR_OK) {
2282                 *value = target_buffer_get_u64(target, value_buf);
2283                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2284                                   address,
2285                                   *value);
2286         } else {
2287                 *value = 0x0;
2288                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2289                                   address);
2290         }
2291
2292         return retval;
2293 }
2294
2295 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2296 {
2297         uint8_t value_buf[4];
2298         if (!target_was_examined(target)) {
2299                 LOG_ERROR("Target not examined yet");
2300                 return ERROR_FAIL;
2301         }
2302
2303         int retval = target_read_memory(target, address, 4, 1, value_buf);
2304
2305         if (retval == ERROR_OK) {
2306                 *value = target_buffer_get_u32(target, value_buf);
2307                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2308                                   address,
2309                                   *value);
2310         } else {
2311                 *value = 0x0;
2312                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2313                                   address);
2314         }
2315
2316         return retval;
2317 }
2318
2319 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2320 {
2321         uint8_t value_buf[2];
2322         if (!target_was_examined(target)) {
2323                 LOG_ERROR("Target not examined yet");
2324                 return ERROR_FAIL;
2325         }
2326
2327         int retval = target_read_memory(target, address, 2, 1, value_buf);
2328
2329         if (retval == ERROR_OK) {
2330                 *value = target_buffer_get_u16(target, value_buf);
2331                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2332                                   address,
2333                                   *value);
2334         } else {
2335                 *value = 0x0;
2336                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2337                                   address);
2338         }
2339
2340         return retval;
2341 }
2342
2343 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2344 {
2345         if (!target_was_examined(target)) {
2346                 LOG_ERROR("Target not examined yet");
2347                 return ERROR_FAIL;
2348         }
2349
2350         int retval = target_read_memory(target, address, 1, 1, value);
2351
2352         if (retval == ERROR_OK) {
2353                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2354                                   address,
2355                                   *value);
2356         } else {
2357                 *value = 0x0;
2358                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2359                                   address);
2360         }
2361
2362         return retval;
2363 }
2364
2365 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2366 {
2367         int retval;
2368         uint8_t value_buf[8];
2369         if (!target_was_examined(target)) {
2370                 LOG_ERROR("Target not examined yet");
2371                 return ERROR_FAIL;
2372         }
2373
2374         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2375                           address,
2376                           value);
2377
2378         target_buffer_set_u64(target, value_buf, value);
2379         retval = target_write_memory(target, address, 8, 1, value_buf);
2380         if (retval != ERROR_OK)
2381                 LOG_DEBUG("failed: %i", retval);
2382
2383         return retval;
2384 }
2385
2386 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2387 {
2388         int retval;
2389         uint8_t value_buf[4];
2390         if (!target_was_examined(target)) {
2391                 LOG_ERROR("Target not examined yet");
2392                 return ERROR_FAIL;
2393         }
2394
2395         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2396                           address,
2397                           value);
2398
2399         target_buffer_set_u32(target, value_buf, value);
2400         retval = target_write_memory(target, address, 4, 1, value_buf);
2401         if (retval != ERROR_OK)
2402                 LOG_DEBUG("failed: %i", retval);
2403
2404         return retval;
2405 }
2406
2407 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2408 {
2409         int retval;
2410         uint8_t value_buf[2];
2411         if (!target_was_examined(target)) {
2412                 LOG_ERROR("Target not examined yet");
2413                 return ERROR_FAIL;
2414         }
2415
2416         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2417                           address,
2418                           value);
2419
2420         target_buffer_set_u16(target, value_buf, value);
2421         retval = target_write_memory(target, address, 2, 1, value_buf);
2422         if (retval != ERROR_OK)
2423                 LOG_DEBUG("failed: %i", retval);
2424
2425         return retval;
2426 }
2427
2428 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2429 {
2430         int retval;
2431         if (!target_was_examined(target)) {
2432                 LOG_ERROR("Target not examined yet");
2433                 return ERROR_FAIL;
2434         }
2435
2436         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2437                           address, value);
2438
2439         retval = target_write_memory(target, address, 1, 1, &value);
2440         if (retval != ERROR_OK)
2441                 LOG_DEBUG("failed: %i", retval);
2442
2443         return retval;
2444 }
2445
2446 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2447 {
2448         int retval;
2449         uint8_t value_buf[8];
2450         if (!target_was_examined(target)) {
2451                 LOG_ERROR("Target not examined yet");
2452                 return ERROR_FAIL;
2453         }
2454
2455         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2456                           address,
2457                           value);
2458
2459         target_buffer_set_u64(target, value_buf, value);
2460         retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2461         if (retval != ERROR_OK)
2462                 LOG_DEBUG("failed: %i", retval);
2463
2464         return retval;
2465 }
2466
2467 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2468 {
2469         int retval;
2470         uint8_t value_buf[4];
2471         if (!target_was_examined(target)) {
2472                 LOG_ERROR("Target not examined yet");
2473                 return ERROR_FAIL;
2474         }
2475
2476         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2477                           address,
2478                           value);
2479
2480         target_buffer_set_u32(target, value_buf, value);
2481         retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2482         if (retval != ERROR_OK)
2483                 LOG_DEBUG("failed: %i", retval);
2484
2485         return retval;
2486 }
2487
2488 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2489 {
2490         int retval;
2491         uint8_t value_buf[2];
2492         if (!target_was_examined(target)) {
2493                 LOG_ERROR("Target not examined yet");
2494                 return ERROR_FAIL;
2495         }
2496
2497         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2498                           address,
2499                           value);
2500
2501         target_buffer_set_u16(target, value_buf, value);
2502         retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2503         if (retval != ERROR_OK)
2504                 LOG_DEBUG("failed: %i", retval);
2505
2506         return retval;
2507 }
2508
2509 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2510 {
2511         int retval;
2512         if (!target_was_examined(target)) {
2513                 LOG_ERROR("Target not examined yet");
2514                 return ERROR_FAIL;
2515         }
2516
2517         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2518                           address, value);
2519
2520         retval = target_write_phys_memory(target, address, 1, 1, &value);
2521         if (retval != ERROR_OK)
2522                 LOG_DEBUG("failed: %i", retval);
2523
2524         return retval;
2525 }
2526
2527 static int find_target(struct command_context *cmd_ctx, const char *name)
2528 {
2529         struct target *target = get_target(name);
2530         if (target == NULL) {
2531                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2532                 return ERROR_FAIL;
2533         }
2534         if (!target->tap->enabled) {
2535                 LOG_USER("Target: TAP %s is disabled, "
2536                          "can't be the current target\n",
2537                          target->tap->dotted_name);
2538                 return ERROR_FAIL;
2539         }
2540
2541         cmd_ctx->current_target = target;
2542         if (cmd_ctx->current_target_override)
2543                 cmd_ctx->current_target_override = target;
2544
2545         return ERROR_OK;
2546 }
2547
2548
2549 COMMAND_HANDLER(handle_targets_command)
2550 {
2551         int retval = ERROR_OK;
2552         if (CMD_ARGC == 1) {
2553                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2554                 if (retval == ERROR_OK) {
2555                         /* we're done! */
2556                         return retval;
2557                 }
2558         }
2559
2560         struct target *target = all_targets;
2561         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2562         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2563         while (target) {
2564                 const char *state;
2565                 char marker = ' ';
2566
2567                 if (target->tap->enabled)
2568                         state = target_state_name(target);
2569                 else
2570                         state = "tap-disabled";
2571
2572                 if (CMD_CTX->current_target == target)
2573                         marker = '*';
2574
2575                 /* keep columns lined up to match the headers above */
2576                 command_print(CMD_CTX,
2577                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2578                                 target->target_number,
2579                                 marker,
2580                                 target_name(target),
2581                                 target_type_name(target),
2582                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2583                                         target->endianness)->name,
2584                                 target->tap->dotted_name,
2585                                 state);
2586                 target = target->next;
2587         }
2588
2589         return retval;
2590 }
2591
2592 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2593
2594 static int powerDropout;
2595 static int srstAsserted;
2596
2597 static int runPowerRestore;
2598 static int runPowerDropout;
2599 static int runSrstAsserted;
2600 static int runSrstDeasserted;
2601
2602 static int sense_handler(void)
2603 {
2604         static int prevSrstAsserted;
2605         static int prevPowerdropout;
2606
2607         int retval = jtag_power_dropout(&powerDropout);
2608         if (retval != ERROR_OK)
2609                 return retval;
2610
2611         int powerRestored;
2612         powerRestored = prevPowerdropout && !powerDropout;
2613         if (powerRestored)
2614                 runPowerRestore = 1;
2615
2616         int64_t current = timeval_ms();
2617         static int64_t lastPower;
2618         bool waitMore = lastPower + 2000 > current;
2619         if (powerDropout && !waitMore) {
2620                 runPowerDropout = 1;
2621                 lastPower = current;
2622         }
2623
2624         retval = jtag_srst_asserted(&srstAsserted);
2625         if (retval != ERROR_OK)
2626                 return retval;
2627
2628         int srstDeasserted;
2629         srstDeasserted = prevSrstAsserted && !srstAsserted;
2630
2631         static int64_t lastSrst;
2632         waitMore = lastSrst + 2000 > current;
2633         if (srstDeasserted && !waitMore) {
2634                 runSrstDeasserted = 1;
2635                 lastSrst = current;
2636         }
2637
2638         if (!prevSrstAsserted && srstAsserted)
2639                 runSrstAsserted = 1;
2640
2641         prevSrstAsserted = srstAsserted;
2642         prevPowerdropout = powerDropout;
2643
2644         if (srstDeasserted || powerRestored) {
2645                 /* Other than logging the event we can't do anything here.
2646                  * Issuing a reset is a particularly bad idea as we might
2647                  * be inside a reset already.
2648                  */
2649         }
2650
2651         return ERROR_OK;
2652 }
2653
2654 /* process target state changes */
2655 static int handle_target(void *priv)
2656 {
2657         Jim_Interp *interp = (Jim_Interp *)priv;
2658         int retval = ERROR_OK;
2659
2660         if (!is_jtag_poll_safe()) {
2661                 /* polling is disabled currently */
2662                 return ERROR_OK;
2663         }
2664
2665         /* we do not want to recurse here... */
2666         static int recursive;
2667         if (!recursive) {
2668                 recursive = 1;
2669                 sense_handler();
2670                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2671                  * We need to avoid an infinite loop/recursion here and we do that by
2672                  * clearing the flags after running these events.
2673                  */
2674                 int did_something = 0;
2675                 if (runSrstAsserted) {
2676                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2677                         Jim_Eval(interp, "srst_asserted");
2678                         did_something = 1;
2679                 }
2680                 if (runSrstDeasserted) {
2681                         Jim_Eval(interp, "srst_deasserted");
2682                         did_something = 1;
2683                 }
2684                 if (runPowerDropout) {
2685                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2686                         Jim_Eval(interp, "power_dropout");
2687                         did_something = 1;
2688                 }
2689                 if (runPowerRestore) {
2690                         Jim_Eval(interp, "power_restore");
2691                         did_something = 1;
2692                 }
2693
2694                 if (did_something) {
2695                         /* clear detect flags */
2696                         sense_handler();
2697                 }
2698
2699                 /* clear action flags */
2700
2701                 runSrstAsserted = 0;
2702                 runSrstDeasserted = 0;
2703                 runPowerRestore = 0;
2704                 runPowerDropout = 0;
2705
2706                 recursive = 0;
2707         }
2708
2709         /* Poll targets for state changes unless that's globally disabled.
2710          * Skip targets that are currently disabled.
2711          */
2712         for (struct target *target = all_targets;
2713                         is_jtag_poll_safe() && target;
2714                         target = target->next) {
2715
2716                 if (!target_was_examined(target))
2717                         continue;
2718
2719                 if (!target->tap->enabled)
2720                         continue;
2721
2722                 if (target->backoff.times > target->backoff.count) {
2723                         /* do not poll this time as we failed previously */
2724                         target->backoff.count++;
2725                         continue;
2726                 }
2727                 target->backoff.count = 0;
2728
2729                 /* only poll target if we've got power and srst isn't asserted */
2730                 if (!powerDropout && !srstAsserted) {
2731                         /* polling may fail silently until the target has been examined */
2732                         retval = target_poll(target);
2733                         if (retval != ERROR_OK) {
2734                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2735                                 if (target->backoff.times * polling_interval < 5000) {
2736                                         target->backoff.times *= 2;
2737                                         target->backoff.times++;
2738                                 }
2739
2740                                 /* Tell GDB to halt the debugger. This allows the user to
2741                                  * run monitor commands to handle the situation.
2742                                  */
2743                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2744                         }
2745                         if (target->backoff.times > 0) {
2746                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2747                                 target_reset_examined(target);
2748                                 retval = target_examine_one(target);
2749                                 /* Target examination could have failed due to unstable connection,
2750                                  * but we set the examined flag anyway to repoll it later */
2751                                 if (retval != ERROR_OK) {
2752                                         target->examined = true;
2753                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2754                                                  target->backoff.times * polling_interval);
2755                                         return retval;
2756                                 }
2757                         }
2758
2759                         /* Since we succeeded, we reset backoff count */
2760                         target->backoff.times = 0;
2761                 }
2762         }
2763
2764         return retval;
2765 }
2766
2767 COMMAND_HANDLER(handle_reg_command)
2768 {
2769         struct target *target;
2770         struct reg *reg = NULL;
2771         unsigned count = 0;
2772         char *value;
2773
2774         LOG_DEBUG("-");
2775
2776         target = get_current_target(CMD_CTX);
2777
2778         /* list all available registers for the current target */
2779         if (CMD_ARGC == 0) {
2780                 struct reg_cache *cache = target->reg_cache;
2781
2782                 count = 0;
2783                 while (cache) {
2784                         unsigned i;
2785
2786                         command_print(CMD_CTX, "===== %s", cache->name);
2787
2788                         for (i = 0, reg = cache->reg_list;
2789                                         i < cache->num_regs;
2790                                         i++, reg++, count++) {
2791                                 /* only print cached values if they are valid */
2792                                 if (reg->valid) {
2793                                         value = buf_to_str(reg->value,
2794                                                         reg->size, 16);
2795                                         command_print(CMD_CTX,
2796                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2797                                                         count, reg->name,
2798                                                         reg->size, value,
2799                                                         reg->dirty
2800                                                                 ? " (dirty)"
2801                                                                 : "");
2802                                         free(value);
2803                                 } else {
2804                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2805                                                           count, reg->name,
2806                                                           reg->size) ;
2807                                 }
2808                         }
2809                         cache = cache->next;
2810                 }
2811
2812                 return ERROR_OK;
2813         }
2814
2815         /* access a single register by its ordinal number */
2816         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2817                 unsigned num;
2818                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2819
2820                 struct reg_cache *cache = target->reg_cache;
2821                 count = 0;
2822                 while (cache) {
2823                         unsigned i;
2824                         for (i = 0; i < cache->num_regs; i++) {
2825                                 if (count++ == num) {
2826                                         reg = &cache->reg_list[i];
2827                                         break;
2828                                 }
2829                         }
2830                         if (reg)
2831                                 break;
2832                         cache = cache->next;
2833                 }
2834
2835                 if (!reg) {
2836                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2837                                         "has only %i registers (0 - %i)", num, count, count - 1);
2838                         return ERROR_OK;
2839                 }
2840         } else {
2841                 /* access a single register by its name */
2842                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2843
2844                 if (!reg) {
2845                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2846                         return ERROR_OK;
2847                 }
2848         }
2849
2850         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2851
2852         /* display a register */
2853         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2854                         && (CMD_ARGV[1][0] <= '9')))) {
2855                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2856                         reg->valid = 0;
2857
2858                 if (reg->valid == 0)
2859                         reg->type->get(reg);
2860                 value = buf_to_str(reg->value, reg->size, 16);
2861                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2862                 free(value);
2863                 return ERROR_OK;
2864         }
2865
2866         /* set register value */
2867         if (CMD_ARGC == 2) {
2868                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2869                 if (buf == NULL)
2870                         return ERROR_FAIL;
2871                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2872
2873                 reg->type->set(reg, buf);
2874
2875                 value = buf_to_str(reg->value, reg->size, 16);
2876                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2877                 free(value);
2878
2879                 free(buf);
2880
2881                 return ERROR_OK;
2882         }
2883
2884         return ERROR_COMMAND_SYNTAX_ERROR;
2885 }
2886
2887 COMMAND_HANDLER(handle_poll_command)
2888 {
2889         int retval = ERROR_OK;
2890         struct target *target = get_current_target(CMD_CTX);
2891
2892         if (CMD_ARGC == 0) {
2893                 command_print(CMD_CTX, "background polling: %s",
2894                                 jtag_poll_get_enabled() ? "on" : "off");
2895                 command_print(CMD_CTX, "TAP: %s (%s)",
2896                                 target->tap->dotted_name,
2897                                 target->tap->enabled ? "enabled" : "disabled");
2898                 if (!target->tap->enabled)
2899                         return ERROR_OK;
2900                 retval = target_poll(target);
2901                 if (retval != ERROR_OK)
2902                         return retval;
2903                 retval = target_arch_state(target);
2904                 if (retval != ERROR_OK)
2905                         return retval;
2906         } else if (CMD_ARGC == 1) {
2907                 bool enable;
2908                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2909                 jtag_poll_set_enabled(enable);
2910         } else
2911                 return ERROR_COMMAND_SYNTAX_ERROR;
2912
2913         return retval;
2914 }
2915
2916 COMMAND_HANDLER(handle_wait_halt_command)
2917 {
2918         if (CMD_ARGC > 1)
2919                 return ERROR_COMMAND_SYNTAX_ERROR;
2920
2921         unsigned ms = DEFAULT_HALT_TIMEOUT;
2922         if (1 == CMD_ARGC) {
2923                 int retval = parse_uint(CMD_ARGV[0], &ms);
2924                 if (ERROR_OK != retval)
2925                         return ERROR_COMMAND_SYNTAX_ERROR;
2926         }
2927
2928         struct target *target = get_current_target(CMD_CTX);
2929         return target_wait_state(target, TARGET_HALTED, ms);
2930 }
2931
2932 /* wait for target state to change. The trick here is to have a low
2933  * latency for short waits and not to suck up all the CPU time
2934  * on longer waits.
2935  *
2936  * After 500ms, keep_alive() is invoked
2937  */
2938 int target_wait_state(struct target *target, enum target_state state, int ms)
2939 {
2940         int retval;
2941         int64_t then = 0, cur;
2942         bool once = true;
2943
2944         for (;;) {
2945                 retval = target_poll(target);
2946                 if (retval != ERROR_OK)
2947                         return retval;
2948                 if (target->state == state)
2949                         break;
2950                 cur = timeval_ms();
2951                 if (once) {
2952                         once = false;
2953                         then = timeval_ms();
2954                         LOG_DEBUG("waiting for target %s...",
2955                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2956                 }
2957
2958                 if (cur-then > 500)
2959                         keep_alive();
2960
2961                 if ((cur-then) > ms) {
2962                         LOG_ERROR("timed out while waiting for target %s",
2963                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2964                         return ERROR_FAIL;
2965                 }
2966         }
2967
2968         return ERROR_OK;
2969 }
2970
2971 COMMAND_HANDLER(handle_halt_command)
2972 {
2973         LOG_DEBUG("-");
2974
2975         struct target *target = get_current_target(CMD_CTX);
2976
2977         target->verbose_halt_msg = true;
2978
2979         int retval = target_halt(target);
2980         if (ERROR_OK != retval)
2981                 return retval;
2982
2983         if (CMD_ARGC == 1) {
2984                 unsigned wait_local;
2985                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2986                 if (ERROR_OK != retval)
2987                         return ERROR_COMMAND_SYNTAX_ERROR;
2988                 if (!wait_local)
2989                         return ERROR_OK;
2990         }
2991
2992         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2993 }
2994
2995 COMMAND_HANDLER(handle_soft_reset_halt_command)
2996 {
2997         struct target *target = get_current_target(CMD_CTX);
2998
2999         LOG_USER("requesting target halt and executing a soft reset");
3000
3001         target_soft_reset_halt(target);
3002
3003         return ERROR_OK;
3004 }
3005
3006 COMMAND_HANDLER(handle_reset_command)
3007 {
3008         if (CMD_ARGC > 1)
3009                 return ERROR_COMMAND_SYNTAX_ERROR;
3010
3011         enum target_reset_mode reset_mode = RESET_RUN;
3012         if (CMD_ARGC == 1) {
3013                 const Jim_Nvp *n;
3014                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
3015                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
3016                         return ERROR_COMMAND_SYNTAX_ERROR;
3017                 reset_mode = n->value;
3018         }
3019
3020         /* reset *all* targets */
3021         return target_process_reset(CMD_CTX, reset_mode);
3022 }
3023
3024
3025 COMMAND_HANDLER(handle_resume_command)
3026 {
3027         int current = 1;
3028         if (CMD_ARGC > 1)
3029                 return ERROR_COMMAND_SYNTAX_ERROR;
3030
3031         struct target *target = get_current_target(CMD_CTX);
3032
3033         /* with no CMD_ARGV, resume from current pc, addr = 0,
3034          * with one arguments, addr = CMD_ARGV[0],
3035          * handle breakpoints, not debugging */
3036         target_addr_t addr = 0;
3037         if (CMD_ARGC == 1) {
3038                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3039                 current = 0;
3040         }
3041
3042         return target_resume(target, current, addr, 1, 0);
3043 }
3044
3045 COMMAND_HANDLER(handle_step_command)
3046 {
3047         if (CMD_ARGC > 1)
3048                 return ERROR_COMMAND_SYNTAX_ERROR;
3049
3050         LOG_DEBUG("-");
3051
3052         /* with no CMD_ARGV, step from current pc, addr = 0,
3053          * with one argument addr = CMD_ARGV[0],
3054          * handle breakpoints, debugging */
3055         target_addr_t addr = 0;
3056         int current_pc = 1;
3057         if (CMD_ARGC == 1) {
3058                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3059                 current_pc = 0;
3060         }
3061
3062         struct target *target = get_current_target(CMD_CTX);
3063
3064         return target->type->step(target, current_pc, addr, 1);
3065 }
3066
3067 static void handle_md_output(struct command_context *cmd_ctx,
3068                 struct target *target, target_addr_t address, unsigned size,
3069                 unsigned count, const uint8_t *buffer)
3070 {
3071         const unsigned line_bytecnt = 32;
3072         unsigned line_modulo = line_bytecnt / size;
3073
3074         char output[line_bytecnt * 4 + 1];
3075         unsigned output_len = 0;
3076
3077         const char *value_fmt;
3078         switch (size) {
3079         case 8:
3080                 value_fmt = "%16.16"PRIx64" ";
3081                 break;
3082         case 4:
3083                 value_fmt = "%8.8"PRIx64" ";
3084                 break;
3085         case 2:
3086                 value_fmt = "%4.4"PRIx64" ";
3087                 break;
3088         case 1:
3089                 value_fmt = "%2.2"PRIx64" ";
3090                 break;
3091         default:
3092                 /* "can't happen", caller checked */
3093                 LOG_ERROR("invalid memory read size: %u", size);
3094                 return;
3095         }
3096
3097         for (unsigned i = 0; i < count; i++) {
3098                 if (i % line_modulo == 0) {
3099                         output_len += snprintf(output + output_len,
3100                                         sizeof(output) - output_len,
3101                                         TARGET_ADDR_FMT ": ",
3102                                         (address + (i * size)));
3103                 }
3104
3105                 uint64_t value = 0;
3106                 const uint8_t *value_ptr = buffer + i * size;
3107                 switch (size) {
3108                 case 8:
3109                         value = target_buffer_get_u64(target, value_ptr);
3110                         break;
3111                 case 4:
3112                         value = target_buffer_get_u32(target, value_ptr);
3113                         break;
3114                 case 2:
3115                         value = target_buffer_get_u16(target, value_ptr);
3116                         break;
3117                 case 1:
3118                         value = *value_ptr;
3119                 }
3120                 output_len += snprintf(output + output_len,
3121                                 sizeof(output) - output_len,
3122                                 value_fmt, value);
3123
3124                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3125                         command_print(cmd_ctx, "%s", output);
3126                         output_len = 0;
3127                 }
3128         }
3129 }
3130
3131 COMMAND_HANDLER(handle_md_command)
3132 {
3133         if (CMD_ARGC < 1)
3134                 return ERROR_COMMAND_SYNTAX_ERROR;
3135
3136         unsigned size = 0;
3137         switch (CMD_NAME[2]) {
3138         case 'd':
3139                 size = 8;
3140                 break;
3141         case 'w':
3142                 size = 4;
3143                 break;
3144         case 'h':
3145                 size = 2;
3146                 break;
3147         case 'b':
3148                 size = 1;
3149                 break;
3150         default:
3151                 return ERROR_COMMAND_SYNTAX_ERROR;
3152         }
3153
3154         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3155         int (*fn)(struct target *target,
3156                         target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3157         if (physical) {
3158                 CMD_ARGC--;
3159                 CMD_ARGV++;
3160                 fn = target_read_phys_memory;
3161         } else
3162                 fn = target_read_memory;
3163         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3164                 return ERROR_COMMAND_SYNTAX_ERROR;
3165
3166         target_addr_t address;
3167         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3168
3169         unsigned count = 1;
3170         if (CMD_ARGC == 2)
3171                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3172
3173         uint8_t *buffer = calloc(count, size);
3174         if (buffer == NULL) {
3175                 LOG_ERROR("Failed to allocate md read buffer");
3176                 return ERROR_FAIL;
3177         }
3178
3179         struct target *target = get_current_target(CMD_CTX);
3180         int retval = fn(target, address, size, count, buffer);
3181         if (ERROR_OK == retval)
3182                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3183
3184         free(buffer);
3185
3186         return retval;
3187 }
3188
3189 typedef int (*target_write_fn)(struct target *target,
3190                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3191
3192 static int target_fill_mem(struct target *target,
3193                 target_addr_t address,
3194                 target_write_fn fn,
3195                 unsigned data_size,
3196                 /* value */
3197                 uint64_t b,
3198                 /* count */
3199                 unsigned c)
3200 {
3201         /* We have to write in reasonably large chunks to be able
3202          * to fill large memory areas with any sane speed */
3203         const unsigned chunk_size = 16384;
3204         uint8_t *target_buf = malloc(chunk_size * data_size);
3205         if (target_buf == NULL) {
3206                 LOG_ERROR("Out of memory");
3207                 return ERROR_FAIL;
3208         }
3209
3210         for (unsigned i = 0; i < chunk_size; i++) {
3211                 switch (data_size) {
3212                 case 8:
3213                         target_buffer_set_u64(target, target_buf + i * data_size, b);
3214                         break;
3215                 case 4:
3216                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3217                         break;
3218                 case 2:
3219                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3220                         break;
3221                 case 1:
3222                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3223                         break;
3224                 default:
3225                         exit(-1);
3226                 }
3227         }
3228
3229         int retval = ERROR_OK;
3230
3231         for (unsigned x = 0; x < c; x += chunk_size) {
3232                 unsigned current;
3233                 current = c - x;
3234                 if (current > chunk_size)
3235                         current = chunk_size;
3236                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3237                 if (retval != ERROR_OK)
3238                         break;
3239                 /* avoid GDB timeouts */
3240                 keep_alive();
3241         }
3242         free(target_buf);
3243
3244         return retval;
3245 }
3246
3247
3248 COMMAND_HANDLER(handle_mw_command)
3249 {
3250         if (CMD_ARGC < 2)
3251                 return ERROR_COMMAND_SYNTAX_ERROR;
3252         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3253         target_write_fn fn;
3254         if (physical) {
3255                 CMD_ARGC--;
3256                 CMD_ARGV++;
3257                 fn = target_write_phys_memory;
3258         } else
3259                 fn = target_write_memory;
3260         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3261                 return ERROR_COMMAND_SYNTAX_ERROR;
3262
3263         target_addr_t address;
3264         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3265
3266         target_addr_t value;
3267         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], value);
3268
3269         unsigned count = 1;
3270         if (CMD_ARGC == 3)
3271                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3272
3273         struct target *target = get_current_target(CMD_CTX);
3274         unsigned wordsize;
3275         switch (CMD_NAME[2]) {
3276                 case 'd':
3277                         wordsize = 8;
3278                         break;
3279                 case 'w':
3280                         wordsize = 4;
3281                         break;
3282                 case 'h':
3283                         wordsize = 2;
3284                         break;
3285                 case 'b':
3286                         wordsize = 1;
3287                         break;
3288                 default:
3289                         return ERROR_COMMAND_SYNTAX_ERROR;
3290         }
3291
3292         return target_fill_mem(target, address, fn, wordsize, value, count);
3293 }
3294
3295 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3296                 target_addr_t *min_address, target_addr_t *max_address)
3297 {
3298         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3299                 return ERROR_COMMAND_SYNTAX_ERROR;
3300
3301         /* a base address isn't always necessary,
3302          * default to 0x0 (i.e. don't relocate) */
3303         if (CMD_ARGC >= 2) {
3304                 target_addr_t addr;
3305                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3306                 image->base_address = addr;
3307                 image->base_address_set = 1;
3308         } else
3309                 image->base_address_set = 0;
3310
3311         image->start_address_set = 0;
3312
3313         if (CMD_ARGC >= 4)
3314                 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3315         if (CMD_ARGC == 5) {
3316                 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3317                 /* use size (given) to find max (required) */
3318                 *max_address += *min_address;
3319         }
3320
3321         if (*min_address > *max_address)
3322                 return ERROR_COMMAND_SYNTAX_ERROR;
3323
3324         return ERROR_OK;
3325 }
3326
3327 COMMAND_HANDLER(handle_load_image_command)
3328 {
3329         uint8_t *buffer;
3330         size_t buf_cnt;
3331         uint32_t image_size;
3332         target_addr_t min_address = 0;
3333         target_addr_t max_address = -1;
3334         int i;
3335         struct image image;
3336
3337         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3338                         &image, &min_address, &max_address);
3339         if (ERROR_OK != retval)
3340                 return retval;
3341
3342         struct target *target = get_current_target(CMD_CTX);
3343
3344         struct duration bench;
3345         duration_start(&bench);
3346
3347         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3348                 return ERROR_FAIL;
3349
3350         image_size = 0x0;
3351         retval = ERROR_OK;
3352         for (i = 0; i < image.num_sections; i++) {
3353                 buffer = malloc(image.sections[i].size);
3354                 if (buffer == NULL) {
3355                         command_print(CMD_CTX,
3356                                                   "error allocating buffer for section (%d bytes)",
3357                                                   (int)(image.sections[i].size));
3358                         retval = ERROR_FAIL;
3359                         break;
3360                 }
3361
3362                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3363                 if (retval != ERROR_OK) {
3364                         free(buffer);
3365                         break;
3366                 }
3367
3368                 uint32_t offset = 0;
3369                 uint32_t length = buf_cnt;
3370
3371                 /* DANGER!!! beware of unsigned comparision here!!! */
3372
3373                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3374                                 (image.sections[i].base_address < max_address)) {
3375
3376                         if (image.sections[i].base_address < min_address) {
3377                                 /* clip addresses below */
3378                                 offset += min_address-image.sections[i].base_address;
3379                                 length -= offset;
3380                         }
3381
3382                         if (image.sections[i].base_address + buf_cnt > max_address)
3383                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3384
3385                         retval = target_write_buffer(target,
3386                                         image.sections[i].base_address + offset, length, buffer + offset);
3387                         if (retval != ERROR_OK) {
3388                                 free(buffer);
3389                                 break;
3390                         }
3391                         image_size += length;
3392                         command_print(CMD_CTX, "%u bytes written at address " TARGET_ADDR_FMT "",
3393                                         (unsigned int)length,
3394                                         image.sections[i].base_address + offset);
3395                 }
3396
3397                 free(buffer);
3398         }
3399
3400         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3401                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3402                                 "in %fs (%0.3f KiB/s)", image_size,
3403                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3404         }
3405
3406         image_close(&image);
3407
3408         return retval;
3409
3410 }
3411
3412 COMMAND_HANDLER(handle_dump_image_command)
3413 {
3414         struct fileio *fileio;
3415         uint8_t *buffer;
3416         int retval, retvaltemp;
3417         target_addr_t address, size;
3418         struct duration bench;
3419         struct target *target = get_current_target(CMD_CTX);
3420
3421         if (CMD_ARGC != 3)
3422                 return ERROR_COMMAND_SYNTAX_ERROR;
3423
3424         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3425         COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3426
3427         uint32_t buf_size = (size > 4096) ? 4096 : size;
3428         buffer = malloc(buf_size);
3429         if (!buffer)
3430                 return ERROR_FAIL;
3431
3432         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3433         if (retval != ERROR_OK) {
3434                 free(buffer);
3435                 return retval;
3436         }
3437
3438         duration_start(&bench);
3439
3440         while (size > 0) {
3441                 size_t size_written;
3442                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3443                 retval = target_read_buffer(target, address, this_run_size, buffer);
3444                 if (retval != ERROR_OK)
3445                         break;
3446
3447                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3448                 if (retval != ERROR_OK)
3449                         break;
3450
3451                 size -= this_run_size;
3452                 address += this_run_size;
3453         }
3454
3455         free(buffer);
3456
3457         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3458                 size_t filesize;
3459                 retval = fileio_size(fileio, &filesize);
3460                 if (retval != ERROR_OK)
3461                         return retval;
3462                 command_print(CMD_CTX,
3463                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3464                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3465         }
3466
3467         retvaltemp = fileio_close(fileio);
3468         if (retvaltemp != ERROR_OK)
3469                 return retvaltemp;
3470
3471         return retval;
3472 }
3473
3474 enum verify_mode {
3475         IMAGE_TEST = 0,
3476         IMAGE_VERIFY = 1,
3477         IMAGE_CHECKSUM_ONLY = 2
3478 };
3479
3480 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3481 {
3482         uint8_t *buffer;
3483         size_t buf_cnt;
3484         uint32_t image_size;
3485         int i;
3486         int retval;
3487         uint32_t checksum = 0;
3488         uint32_t mem_checksum = 0;
3489
3490         struct image image;
3491
3492         struct target *target = get_current_target(CMD_CTX);
3493
3494         if (CMD_ARGC < 1)
3495                 return ERROR_COMMAND_SYNTAX_ERROR;
3496
3497         if (!target) {
3498                 LOG_ERROR("no target selected");
3499                 return ERROR_FAIL;
3500         }
3501
3502         struct duration bench;
3503         duration_start(&bench);
3504
3505         if (CMD_ARGC >= 2) {
3506                 target_addr_t addr;
3507                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3508                 image.base_address = addr;
3509                 image.base_address_set = 1;
3510         } else {
3511                 image.base_address_set = 0;
3512                 image.base_address = 0x0;
3513         }
3514
3515         image.start_address_set = 0;
3516
3517         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3518         if (retval != ERROR_OK)
3519                 return retval;
3520
3521         image_size = 0x0;
3522         int diffs = 0;
3523         retval = ERROR_OK;
3524         for (i = 0; i < image.num_sections; i++) {
3525                 buffer = malloc(image.sections[i].size);
3526                 if (buffer == NULL) {
3527                         command_print(CMD_CTX,
3528                                         "error allocating buffer for section (%d bytes)",
3529                                         (int)(image.sections[i].size));
3530                         break;
3531                 }
3532                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3533                 if (retval != ERROR_OK) {
3534                         free(buffer);
3535                         break;
3536                 }
3537
3538                 if (verify >= IMAGE_VERIFY) {
3539                         /* calculate checksum of image */
3540                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3541                         if (retval != ERROR_OK) {
3542                                 free(buffer);
3543                                 break;
3544                         }
3545
3546                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3547                         if (retval != ERROR_OK) {
3548                                 free(buffer);
3549                                 break;
3550                         }
3551                         if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3552                                 LOG_ERROR("checksum mismatch");
3553                                 free(buffer);
3554                                 retval = ERROR_FAIL;
3555                                 goto done;
3556                         }
3557                         if (checksum != mem_checksum) {
3558                                 /* failed crc checksum, fall back to a binary compare */
3559                                 uint8_t *data;
3560
3561                                 if (diffs == 0)
3562                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3563
3564                                 data = malloc(buf_cnt);
3565
3566                                 /* Can we use 32bit word accesses? */
3567                                 int size = 1;
3568                                 int count = buf_cnt;
3569                                 if ((count % 4) == 0) {
3570                                         size *= 4;
3571                                         count /= 4;
3572                                 }
3573                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3574                                 if (retval == ERROR_OK) {
3575                                         uint32_t t;
3576                                         for (t = 0; t < buf_cnt; t++) {
3577                                                 if (data[t] != buffer[t]) {
3578                                                         command_print(CMD_CTX,
3579                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3580                                                                                   diffs,
3581                                                                                   (unsigned)(t + image.sections[i].base_address),
3582                                                                                   data[t],
3583                                                                                   buffer[t]);
3584                                                         if (diffs++ >= 127) {
3585                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3586                                                                 free(data);
3587                                                                 free(buffer);
3588                                                                 goto done;
3589                                                         }
3590                                                 }
3591                                                 keep_alive();
3592                                         }
3593                                 }
3594                                 free(data);
3595                         }
3596                 } else {
3597                         command_print(CMD_CTX, "address " TARGET_ADDR_FMT " length 0x%08zx",
3598                                                   image.sections[i].base_address,
3599                                                   buf_cnt);
3600                 }
3601
3602                 free(buffer);
3603                 image_size += buf_cnt;
3604         }
3605         if (diffs > 0)
3606                 command_print(CMD_CTX, "No more differences found.");
3607 done:
3608         if (diffs > 0)
3609                 retval = ERROR_FAIL;
3610         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3611                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3612                                 "in %fs (%0.3f KiB/s)", image_size,
3613                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3614         }
3615
3616         image_close(&image);
3617
3618         return retval;
3619 }
3620
3621 COMMAND_HANDLER(handle_verify_image_checksum_command)
3622 {
3623         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3624 }
3625
3626 COMMAND_HANDLER(handle_verify_image_command)
3627 {
3628         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3629 }
3630
3631 COMMAND_HANDLER(handle_test_image_command)
3632 {
3633         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3634 }
3635
3636 static int handle_bp_command_list(struct command_context *cmd_ctx)
3637 {
3638         struct target *target = get_current_target(cmd_ctx);
3639         struct breakpoint *breakpoint = target->breakpoints;
3640         while (breakpoint) {
3641                 if (breakpoint->type == BKPT_SOFT) {
3642                         char *buf = buf_to_str(breakpoint->orig_instr,
3643                                         breakpoint->length, 16);
3644                         command_print(cmd_ctx, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3645                                         breakpoint->address,
3646                                         breakpoint->length,
3647                                         breakpoint->set, buf);
3648                         free(buf);
3649                 } else {
3650                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3651                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3652                                                         breakpoint->asid,
3653                                                         breakpoint->length, breakpoint->set);
3654                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3655                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3656                                                         breakpoint->address,
3657                                                         breakpoint->length, breakpoint->set);
3658                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3659                                                         breakpoint->asid);
3660                         } else
3661                                 command_print(cmd_ctx, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3662                                                         breakpoint->address,
3663                                                         breakpoint->length, breakpoint->set);
3664                 }
3665
3666                 breakpoint = breakpoint->next;
3667         }
3668         return ERROR_OK;
3669 }
3670
3671 static int handle_bp_command_set(struct command_context *cmd_ctx,
3672                 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3673 {
3674         struct target *target = get_current_target(cmd_ctx);
3675         int retval;
3676
3677         if (asid == 0) {
3678                 retval = breakpoint_add(target, addr, length, hw);
3679                 if (ERROR_OK == retval)
3680                         command_print(cmd_ctx, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3681                 else {
3682                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3683                         return retval;
3684                 }
3685         } else if (addr == 0) {
3686                 if (target->type->add_context_breakpoint == NULL) {
3687                         LOG_WARNING("Context breakpoint not available");
3688                         return ERROR_OK;
3689                 }
3690                 retval = context_breakpoint_add(target, asid, length, hw);
3691                 if (ERROR_OK == retval)
3692                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3693                 else {
3694                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3695                         return retval;
3696                 }
3697         } else {
3698                 if (target->type->add_hybrid_breakpoint == NULL) {
3699                         LOG_WARNING("Hybrid breakpoint not available");
3700                         return ERROR_OK;
3701                 }
3702                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3703                 if (ERROR_OK == retval)
3704                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3705                 else {
3706                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3707                         return retval;
3708                 }
3709         }
3710         return ERROR_OK;
3711 }
3712
3713 COMMAND_HANDLER(handle_bp_command)
3714 {
3715         target_addr_t addr;
3716         uint32_t asid;
3717         uint32_t length;
3718         int hw = BKPT_SOFT;
3719
3720         switch (CMD_ARGC) {
3721                 case 0:
3722                         return handle_bp_command_list(CMD_CTX);
3723
3724                 case 2:
3725                         asid = 0;
3726                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3727                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3728                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3729
3730                 case 3:
3731                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3732                                 hw = BKPT_HARD;
3733                                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3734                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3735                                 asid = 0;
3736                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3737                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3738                                 hw = BKPT_HARD;
3739                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3740                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3741                                 addr = 0;
3742                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3743                         }
3744                         /* fallthrough */
3745                 case 4:
3746                         hw = BKPT_HARD;
3747                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3748                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3749                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3750                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3751
3752                 default:
3753                         return ERROR_COMMAND_SYNTAX_ERROR;
3754         }
3755 }
3756
3757 COMMAND_HANDLER(handle_rbp_command)
3758 {
3759         if (CMD_ARGC != 1)
3760                 return ERROR_COMMAND_SYNTAX_ERROR;
3761
3762         target_addr_t addr;
3763         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3764
3765         struct target *target = get_current_target(CMD_CTX);
3766         breakpoint_remove(target, addr);
3767
3768         return ERROR_OK;
3769 }
3770
3771 COMMAND_HANDLER(handle_wp_command)
3772 {
3773         struct target *target = get_current_target(CMD_CTX);
3774
3775         if (CMD_ARGC == 0) {
3776                 struct watchpoint *watchpoint = target->watchpoints;
3777
3778                 while (watchpoint) {
3779                         command_print(CMD_CTX, "address: " TARGET_ADDR_FMT
3780                                         ", len: 0x%8.8" PRIx32
3781                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3782                                         ", mask: 0x%8.8" PRIx32,
3783                                         watchpoint->address,
3784                                         watchpoint->length,
3785                                         (int)watchpoint->rw,
3786                                         watchpoint->value,
3787                                         watchpoint->mask);
3788                         watchpoint = watchpoint->next;
3789                 }
3790                 return ERROR_OK;
3791         }
3792
3793         enum watchpoint_rw type = WPT_ACCESS;
3794         uint32_t addr = 0;
3795         uint32_t length = 0;
3796         uint32_t data_value = 0x0;
3797         uint32_t data_mask = 0xffffffff;
3798
3799         switch (CMD_ARGC) {
3800         case 5:
3801                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3802                 /* fall through */
3803         case 4:
3804                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3805                 /* fall through */
3806         case 3:
3807                 switch (CMD_ARGV[2][0]) {
3808                 case 'r':
3809                         type = WPT_READ;
3810                         break;
3811                 case 'w':
3812                         type = WPT_WRITE;
3813                         break;
3814                 case 'a':
3815                         type = WPT_ACCESS;
3816                         break;
3817                 default:
3818                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3819                         return ERROR_COMMAND_SYNTAX_ERROR;
3820                 }
3821                 /* fall through */
3822         case 2:
3823                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3824                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3825                 break;
3826
3827         default:
3828                 return ERROR_COMMAND_SYNTAX_ERROR;
3829         }
3830
3831         int retval = watchpoint_add(target, addr, length, type,
3832                         data_value, data_mask);
3833         if (ERROR_OK != retval)
3834                 LOG_ERROR("Failure setting watchpoints");
3835
3836         return retval;
3837 }
3838
3839 COMMAND_HANDLER(handle_rwp_command)
3840 {
3841         if (CMD_ARGC != 1)
3842                 return ERROR_COMMAND_SYNTAX_ERROR;
3843
3844         uint32_t addr;
3845         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3846
3847         struct target *target = get_current_target(CMD_CTX);
3848         watchpoint_remove(target, addr);
3849
3850         return ERROR_OK;
3851 }
3852
3853 /**
3854  * Translate a virtual address to a physical address.
3855  *
3856  * The low-level target implementation must have logged a detailed error
3857  * which is forwarded to telnet/GDB session.
3858  */
3859 COMMAND_HANDLER(handle_virt2phys_command)
3860 {
3861         if (CMD_ARGC != 1)
3862                 return ERROR_COMMAND_SYNTAX_ERROR;
3863
3864         target_addr_t va;
3865         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], va);
3866         target_addr_t pa;
3867
3868         struct target *target = get_current_target(CMD_CTX);
3869         int retval = target->type->virt2phys(target, va, &pa);
3870         if (retval == ERROR_OK)
3871                 command_print(CMD_CTX, "Physical address " TARGET_ADDR_FMT "", pa);
3872
3873         return retval;
3874 }
3875
3876 static void writeData(FILE *f, const void *data, size_t len)
3877 {
3878         size_t written = fwrite(data, 1, len, f);
3879         if (written != len)
3880                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3881 }
3882
3883 static void writeLong(FILE *f, int l, struct target *target)
3884 {
3885         uint8_t val[4];
3886
3887         target_buffer_set_u32(target, val, l);
3888         writeData(f, val, 4);
3889 }
3890
3891 static void writeString(FILE *f, char *s)
3892 {
3893         writeData(f, s, strlen(s));
3894 }
3895
3896 typedef unsigned char UNIT[2];  /* unit of profiling */
3897
3898 /* Dump a gmon.out histogram file. */
3899 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3900                         uint32_t start_address, uint32_t end_address, struct target *target, uint32_t duration_ms)
3901 {
3902         uint32_t i;
3903         FILE *f = fopen(filename, "w");
3904         if (f == NULL)
3905                 return;
3906         writeString(f, "gmon");
3907         writeLong(f, 0x00000001, target); /* Version */
3908         writeLong(f, 0, target); /* padding */
3909         writeLong(f, 0, target); /* padding */
3910         writeLong(f, 0, target); /* padding */
3911
3912         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3913         writeData(f, &zero, 1);
3914
3915         /* figure out bucket size */
3916         uint32_t min;
3917         uint32_t max;
3918         if (with_range) {
3919                 min = start_address;
3920                 max = end_address;
3921         } else {
3922                 min = samples[0];
3923                 max = samples[0];
3924                 for (i = 0; i < sampleNum; i++) {
3925                         if (min > samples[i])
3926                                 min = samples[i];
3927                         if (max < samples[i])
3928                                 max = samples[i];
3929                 }
3930
3931                 /* max should be (largest sample + 1)
3932                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3933                 max++;
3934         }
3935
3936         int addressSpace = max - min;
3937         assert(addressSpace >= 2);
3938
3939         /* FIXME: What is the reasonable number of buckets?
3940          * The profiling result will be more accurate if there are enough buckets. */
3941         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3942         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3943         if (numBuckets > maxBuckets)
3944                 numBuckets = maxBuckets;
3945         int *buckets = malloc(sizeof(int) * numBuckets);
3946         if (buckets == NULL) {
3947                 fclose(f);
3948                 return;
3949         }
3950         memset(buckets, 0, sizeof(int) * numBuckets);
3951         for (i = 0; i < sampleNum; i++) {
3952                 uint32_t address = samples[i];
3953
3954                 if ((address < min) || (max <= address))
3955                         continue;
3956
3957                 long long a = address - min;
3958                 long long b = numBuckets;
3959                 long long c = addressSpace;
3960                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3961                 buckets[index_t]++;
3962         }
3963
3964         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3965         writeLong(f, min, target);                      /* low_pc */
3966         writeLong(f, max, target);                      /* high_pc */
3967         writeLong(f, numBuckets, target);       /* # of buckets */
3968         float sample_rate = sampleNum / (duration_ms / 1000.0);
3969         writeLong(f, sample_rate, target);
3970         writeString(f, "seconds");
3971         for (i = 0; i < (15-strlen("seconds")); i++)
3972                 writeData(f, &zero, 1);
3973         writeString(f, "s");
3974
3975         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3976
3977         char *data = malloc(2 * numBuckets);
3978         if (data != NULL) {
3979                 for (i = 0; i < numBuckets; i++) {
3980                         int val;
3981                         val = buckets[i];
3982                         if (val > 65535)
3983                                 val = 65535;
3984                         data[i * 2] = val&0xff;
3985                         data[i * 2 + 1] = (val >> 8) & 0xff;
3986                 }
3987                 free(buckets);
3988                 writeData(f, data, numBuckets * 2);
3989                 free(data);
3990         } else
3991                 free(buckets);
3992
3993         fclose(f);
3994 }
3995
3996 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3997  * which will be used as a random sampling of PC */
3998 COMMAND_HANDLER(handle_profile_command)
3999 {
4000         struct target *target = get_current_target(CMD_CTX);
4001
4002         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
4003                 return ERROR_COMMAND_SYNTAX_ERROR;
4004
4005         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
4006         uint32_t offset;
4007         uint32_t num_of_samples;
4008         int retval = ERROR_OK;
4009
4010         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
4011
4012         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
4013         if (samples == NULL) {
4014                 LOG_ERROR("No memory to store samples.");
4015                 return ERROR_FAIL;
4016         }
4017
4018         uint64_t timestart_ms = timeval_ms();
4019         /**
4020          * Some cores let us sample the PC without the
4021          * annoying halt/resume step; for example, ARMv7 PCSR.
4022          * Provide a way to use that more efficient mechanism.
4023          */
4024         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
4025                                 &num_of_samples, offset);
4026         if (retval != ERROR_OK) {
4027                 free(samples);
4028                 return retval;
4029         }
4030         uint32_t duration_ms = timeval_ms() - timestart_ms;
4031
4032         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
4033
4034         retval = target_poll(target);
4035         if (retval != ERROR_OK) {
4036                 free(samples);
4037                 return retval;
4038         }
4039         if (target->state == TARGET_RUNNING) {
4040                 retval = target_halt(target);
4041                 if (retval != ERROR_OK) {
4042                         free(samples);
4043                         return retval;
4044                 }
4045         }
4046
4047         retval = target_poll(target);
4048         if (retval != ERROR_OK) {
4049                 free(samples);
4050                 return retval;
4051         }
4052
4053         uint32_t start_address = 0;
4054         uint32_t end_address = 0;
4055         bool with_range = false;
4056         if (CMD_ARGC == 4) {
4057                 with_range = true;
4058                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
4059                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
4060         }
4061
4062         write_gmon(samples, num_of_samples, CMD_ARGV[1],
4063                    with_range, start_address, end_address, target, duration_ms);
4064         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
4065
4066         free(samples);
4067         return retval;
4068 }
4069
4070 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
4071 {
4072         char *namebuf;
4073         Jim_Obj *nameObjPtr, *valObjPtr;
4074         int result;
4075
4076         namebuf = alloc_printf("%s(%d)", varname, idx);
4077         if (!namebuf)
4078                 return JIM_ERR;
4079
4080         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4081         valObjPtr = Jim_NewIntObj(interp, val);
4082         if (!nameObjPtr || !valObjPtr) {
4083                 free(namebuf);
4084                 return JIM_ERR;
4085         }
4086
4087         Jim_IncrRefCount(nameObjPtr);
4088         Jim_IncrRefCount(valObjPtr);
4089         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
4090         Jim_DecrRefCount(interp, nameObjPtr);
4091         Jim_DecrRefCount(interp, valObjPtr);
4092         free(namebuf);
4093         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
4094         return result;
4095 }
4096
4097 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4098 {
4099         struct command_context *context;
4100         struct target *target;
4101
4102         context = current_command_context(interp);
4103         assert(context != NULL);
4104
4105         target = get_current_target(context);
4106         if (target == NULL) {
4107                 LOG_ERROR("mem2array: no current target");
4108                 return JIM_ERR;
4109         }
4110
4111         return target_mem2array(interp, target, argc - 1, argv + 1);
4112 }
4113
4114 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
4115 {
4116         long l;
4117         uint32_t width;
4118         int len;
4119         uint32_t addr;
4120         uint32_t count;
4121         uint32_t v;
4122         const char *varname;
4123         const char *phys;
4124         bool is_phys;
4125         int  n, e, retval;
4126         uint32_t i;
4127
4128         /* argv[1] = name of array to receive the data
4129          * argv[2] = desired width
4130          * argv[3] = memory address
4131          * argv[4] = count of times to read
4132          */
4133         if (argc < 4 || argc > 5) {
4134                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems [phys]");
4135                 return JIM_ERR;
4136         }
4137         varname = Jim_GetString(argv[0], &len);
4138         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4139
4140         e = Jim_GetLong(interp, argv[1], &l);
4141         width = l;
4142         if (e != JIM_OK)
4143                 return e;
4144
4145         e = Jim_GetLong(interp, argv[2], &l);
4146         addr = l;
4147         if (e != JIM_OK)
4148                 return e;
4149         e = Jim_GetLong(interp, argv[3], &l);
4150         len = l;
4151         if (e != JIM_OK)
4152                 return e;
4153         is_phys = false;
4154         if (argc > 4) {
4155                 phys = Jim_GetString(argv[4], &n);
4156                 if (!strncmp(phys, "phys", n))
4157                         is_phys = true;
4158                 else
4159                         return JIM_ERR;
4160         }
4161         switch (width) {
4162                 case 8:
4163                         width = 1;
4164                         break;
4165                 case 16:
4166                         width = 2;
4167                         break;
4168                 case 32:
4169                         width = 4;
4170                         break;
4171                 default:
4172                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4173                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
4174                         return JIM_ERR;
4175         }
4176         if (len == 0) {
4177                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4178                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
4179                 return JIM_ERR;
4180         }
4181         if ((addr + (len * width)) < addr) {
4182                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4183                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
4184                 return JIM_ERR;
4185         }
4186         /* absurd transfer size? */
4187         if (len > 65536) {
4188                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4189                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
4190                 return JIM_ERR;
4191         }
4192
4193         if ((width == 1) ||
4194                 ((width == 2) && ((addr & 1) == 0)) ||
4195                 ((width == 4) && ((addr & 3) == 0))) {
4196                 /* all is well */
4197         } else {
4198                 char buf[100];
4199                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4200                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4201                                 addr,
4202                                 width);
4203                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4204                 return JIM_ERR;
4205         }
4206
4207         /* Transfer loop */
4208
4209         /* index counter */
4210         n = 0;
4211
4212         size_t buffersize = 4096;
4213         uint8_t *buffer = malloc(buffersize);
4214         if (buffer == NULL)
4215                 return JIM_ERR;
4216
4217         /* assume ok */
4218         e = JIM_OK;
4219         while (len) {
4220                 /* Slurp... in buffer size chunks */
4221
4222                 count = len; /* in objects.. */
4223                 if (count > (buffersize / width))
4224                         count = (buffersize / width);
4225
4226                 if (is_phys)
4227                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4228                 else
4229                         retval = target_read_memory(target, addr, width, count, buffer);
4230                 if (retval != ERROR_OK) {
4231                         /* BOO !*/
4232                         LOG_ERROR("mem2array: Read @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4233                                           addr,
4234                                           width,
4235                                           count);
4236                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4237                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4238                         e = JIM_ERR;
4239                         break;
4240                 } else {
4241                         v = 0; /* shut up gcc */
4242                         for (i = 0; i < count ; i++, n++) {
4243                                 switch (width) {
4244                                         case 4:
4245                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4246                                                 break;
4247                                         case 2:
4248                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4249                                                 break;
4250                                         case 1:
4251                                                 v = buffer[i] & 0x0ff;
4252                                                 break;
4253                                 }
4254                                 new_int_array_element(interp, varname, n, v);
4255                         }
4256                         len -= count;
4257                         addr += count * width;
4258                 }
4259         }
4260
4261         free(buffer);
4262
4263         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4264
4265         return e;
4266 }
4267
4268 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4269 {
4270         char *namebuf;
4271         Jim_Obj *nameObjPtr, *valObjPtr;
4272         int result;
4273         long l;
4274
4275         namebuf = alloc_printf("%s(%d)", varname, idx);
4276         if (!namebuf)
4277                 return JIM_ERR;
4278
4279         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4280         if (!nameObjPtr) {
4281                 free(namebuf);
4282                 return JIM_ERR;
4283         }
4284
4285         Jim_IncrRefCount(nameObjPtr);
4286         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4287         Jim_DecrRefCount(interp, nameObjPtr);
4288         free(namebuf);
4289         if (valObjPtr == NULL)
4290                 return JIM_ERR;
4291
4292         result = Jim_GetLong(interp, valObjPtr, &l);
4293         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4294         *val = l;
4295         return result;
4296 }
4297
4298 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4299 {
4300         struct command_context *context;
4301         struct target *target;
4302
4303         context = current_command_context(interp);
4304         assert(context != NULL);
4305
4306         target = get_current_target(context);
4307         if (target == NULL) {
4308                 LOG_ERROR("array2mem: no current target");
4309                 return JIM_ERR;
4310         }
4311
4312         return target_array2mem(interp, target, argc-1, argv + 1);
4313 }
4314
4315 static int target_array2mem(Jim_Interp *interp, struct target *target,
4316                 int argc, Jim_Obj *const *argv)
4317 {
4318         long l;
4319         uint32_t width;
4320         int len;
4321         uint32_t addr;
4322         uint32_t count;
4323         uint32_t v;
4324         const char *varname;
4325         const char *phys;
4326         bool is_phys;
4327         int  n, e, retval;
4328         uint32_t i;
4329
4330         /* argv[1] = name of array to get the data
4331          * argv[2] = desired width
4332          * argv[3] = memory address
4333          * argv[4] = count to write
4334          */
4335         if (argc < 4 || argc > 5) {
4336                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4337                 return JIM_ERR;
4338         }
4339         varname = Jim_GetString(argv[0], &len);
4340         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4341
4342         e = Jim_GetLong(interp, argv[1], &l);
4343         width = l;
4344         if (e != JIM_OK)
4345                 return e;
4346
4347         e = Jim_GetLong(interp, argv[2], &l);
4348         addr = l;
4349         if (e != JIM_OK)
4350                 return e;
4351         e = Jim_GetLong(interp, argv[3], &l);
4352         len = l;
4353         if (e != JIM_OK)
4354                 return e;
4355         is_phys = false;
4356         if (argc > 4) {
4357                 phys = Jim_GetString(argv[4], &n);
4358                 if (!strncmp(phys, "phys", n))
4359                         is_phys = true;
4360                 else
4361                         return JIM_ERR;
4362         }
4363         switch (width) {
4364                 case 8:
4365                         width = 1;
4366                         break;
4367                 case 16:
4368                         width = 2;
4369                         break;
4370                 case 32:
4371                         width = 4;
4372                         break;
4373                 default:
4374                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4375                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4376                                         "Invalid width param, must be 8/16/32", NULL);
4377                         return JIM_ERR;
4378         }
4379         if (len == 0) {
4380                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4381                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4382                                 "array2mem: zero width read?", NULL);
4383                 return JIM_ERR;
4384         }
4385         if ((addr + (len * width)) < addr) {
4386                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4387                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4388                                 "array2mem: addr + len - wraps to zero?", NULL);
4389                 return JIM_ERR;
4390         }
4391         /* absurd transfer size? */
4392         if (len > 65536) {
4393                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4394                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4395                                 "array2mem: absurd > 64K item request", NULL);
4396                 return JIM_ERR;
4397         }
4398
4399         if ((width == 1) ||
4400                 ((width == 2) && ((addr & 1) == 0)) ||
4401                 ((width == 4) && ((addr & 3) == 0))) {
4402                 /* all is well */
4403         } else {
4404                 char buf[100];
4405                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4406                 sprintf(buf, "array2mem address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4407                                 addr,
4408                                 width);
4409                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4410                 return JIM_ERR;
4411         }
4412
4413         /* Transfer loop */
4414
4415         /* index counter */
4416         n = 0;
4417         /* assume ok */
4418         e = JIM_OK;
4419
4420         size_t buffersize = 4096;
4421         uint8_t *buffer = malloc(buffersize);
4422         if (buffer == NULL)
4423                 return JIM_ERR;
4424
4425         while (len) {
4426                 /* Slurp... in buffer size chunks */
4427
4428                 count = len; /* in objects.. */
4429                 if (count > (buffersize / width))
4430                         count = (buffersize / width);
4431
4432                 v = 0; /* shut up gcc */
4433                 for (i = 0; i < count; i++, n++) {
4434                         get_int_array_element(interp, varname, n, &v);
4435                         switch (width) {
4436                         case 4:
4437                                 target_buffer_set_u32(target, &buffer[i * width], v);
4438                                 break;
4439                         case 2:
4440                                 target_buffer_set_u16(target, &buffer[i * width], v);
4441                                 break;
4442                         case 1:
4443                                 buffer[i] = v & 0x0ff;
4444                                 break;
4445                         }
4446                 }
4447                 len -= count;
4448
4449                 if (is_phys)
4450                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4451                 else
4452                         retval = target_write_memory(target, addr, width, count, buffer);
4453                 if (retval != ERROR_OK) {
4454                         /* BOO !*/
4455                         LOG_ERROR("array2mem: Write @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4456                                           addr,
4457                                           width,
4458                                           count);
4459                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4460                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4461                         e = JIM_ERR;
4462                         break;
4463                 }
4464                 addr += count * width;
4465         }
4466
4467         free(buffer);
4468
4469         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4470
4471         return e;
4472 }
4473
4474 /* FIX? should we propagate errors here rather than printing them
4475  * and continuing?
4476  */
4477 void target_handle_event(struct target *target, enum target_event e)
4478 {
4479         struct target_event_action *teap;
4480
4481         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4482                 if (teap->event == e) {
4483                         LOG_DEBUG("target(%d): %s (%s) event: %d (%s) action: %s",
4484                                            target->target_number,
4485                                            target_name(target),
4486                                            target_type_name(target),
4487                                            e,
4488                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4489                                            Jim_GetString(teap->body, NULL));
4490
4491                         /* Override current target by the target an event
4492                          * is issued from (lot of scripts need it).
4493                          * Return back to previous override as soon
4494                          * as the handler processing is done */
4495                         struct command_context *cmd_ctx = current_command_context(teap->interp);
4496                         struct target *saved_target_override = cmd_ctx->current_target_override;
4497                         cmd_ctx->current_target_override = target;
4498
4499                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4500                                 Jim_MakeErrorMessage(teap->interp);
4501                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4502                         }
4503
4504                         cmd_ctx->current_target_override = saved_target_override;
4505                 }
4506         }
4507 }
4508
4509 /**
4510  * Returns true only if the target has a handler for the specified event.
4511  */
4512 bool target_has_event_action(struct target *target, enum target_event event)
4513 {
4514         struct target_event_action *teap;
4515
4516         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4517                 if (teap->event == event)
4518                         return true;
4519         }
4520         return false;
4521 }
4522
4523 enum target_cfg_param {
4524         TCFG_TYPE,
4525         TCFG_EVENT,
4526         TCFG_WORK_AREA_VIRT,
4527         TCFG_WORK_AREA_PHYS,
4528         TCFG_WORK_AREA_SIZE,
4529         TCFG_WORK_AREA_BACKUP,
4530         TCFG_ENDIAN,
4531         TCFG_COREID,
4532         TCFG_CHAIN_POSITION,
4533         TCFG_DBGBASE,
4534         TCFG_RTOS,
4535         TCFG_DEFER_EXAMINE,
4536 };
4537
4538 static Jim_Nvp nvp_config_opts[] = {
4539         { .name = "-type",             .value = TCFG_TYPE },
4540         { .name = "-event",            .value = TCFG_EVENT },
4541         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4542         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4543         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4544         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4545         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4546         { .name = "-coreid",           .value = TCFG_COREID },
4547         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4548         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4549         { .name = "-rtos",             .value = TCFG_RTOS },
4550         { .name = "-defer-examine",    .value = TCFG_DEFER_EXAMINE },
4551         { .name = NULL, .value = -1 }
4552 };
4553
4554 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4555 {
4556         Jim_Nvp *n;
4557         Jim_Obj *o;
4558         jim_wide w;
4559         int e;
4560
4561         /* parse config or cget options ... */
4562         while (goi->argc > 0) {
4563                 Jim_SetEmptyResult(goi->interp);
4564                 /* Jim_GetOpt_Debug(goi); */
4565
4566                 if (target->type->target_jim_configure) {
4567                         /* target defines a configure function */
4568                         /* target gets first dibs on parameters */
4569                         e = (*(target->type->target_jim_configure))(target, goi);
4570                         if (e == JIM_OK) {
4571                                 /* more? */
4572                                 continue;
4573                         }
4574                         if (e == JIM_ERR) {
4575                                 /* An error */
4576                                 return e;
4577                         }
4578                         /* otherwise we 'continue' below */
4579                 }
4580                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4581                 if (e != JIM_OK) {
4582                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4583                         return e;
4584                 }
4585                 switch (n->value) {
4586                 case TCFG_TYPE:
4587                         /* not setable */
4588                         if (goi->isconfigure) {
4589                                 Jim_SetResultFormatted(goi->interp,
4590                                                 "not settable: %s", n->name);
4591                                 return JIM_ERR;
4592                         } else {
4593 no_params:
4594                                 if (goi->argc != 0) {
4595                                         Jim_WrongNumArgs(goi->interp,
4596                                                         goi->argc, goi->argv,
4597                                                         "NO PARAMS");
4598                                         return JIM_ERR;
4599                                 }
4600                         }
4601                         Jim_SetResultString(goi->interp,
4602                                         target_type_name(target), -1);
4603                         /* loop for more */
4604                         break;
4605                 case TCFG_EVENT:
4606                         if (goi->argc == 0) {
4607                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4608                                 return JIM_ERR;
4609                         }
4610
4611                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4612                         if (e != JIM_OK) {
4613                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4614                                 return e;
4615                         }
4616
4617                         if (goi->isconfigure) {
4618                                 if (goi->argc != 1) {
4619                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4620                                         return JIM_ERR;
4621                                 }
4622                         } else {
4623                                 if (goi->argc != 0) {
4624                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4625                                         return JIM_ERR;
4626                                 }
4627                         }
4628
4629                         {
4630                                 struct target_event_action *teap;
4631
4632                                 teap = target->event_action;
4633                                 /* replace existing? */
4634                                 while (teap) {
4635                                         if (teap->event == (enum target_event)n->value)
4636                                                 break;
4637                                         teap = teap->next;
4638                                 }
4639
4640                                 if (goi->isconfigure) {
4641                                         bool replace = true;
4642                                         if (teap == NULL) {
4643                                                 /* create new */
4644                                                 teap = calloc(1, sizeof(*teap));
4645                                                 replace = false;
4646                                         }
4647                                         teap->event = n->value;
4648                                         teap->interp = goi->interp;
4649                                         Jim_GetOpt_Obj(goi, &o);
4650                                         if (teap->body)
4651                                                 Jim_DecrRefCount(teap->interp, teap->body);
4652                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4653                                         /*
4654                                          * FIXME:
4655                                          *     Tcl/TK - "tk events" have a nice feature.
4656                                          *     See the "BIND" command.
4657                                          *    We should support that here.
4658                                          *     You can specify %X and %Y in the event code.
4659                                          *     The idea is: %T - target name.
4660                                          *     The idea is: %N - target number
4661                                          *     The idea is: %E - event name.
4662                                          */
4663                                         Jim_IncrRefCount(teap->body);
4664
4665                                         if (!replace) {
4666                                                 /* add to head of event list */
4667                                                 teap->next = target->event_action;
4668                                                 target->event_action = teap;
4669                                         }
4670                                         Jim_SetEmptyResult(goi->interp);
4671                                 } else {
4672                                         /* get */
4673                                         if (teap == NULL)
4674                                                 Jim_SetEmptyResult(goi->interp);
4675                                         else
4676                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4677                                 }
4678                         }
4679                         /* loop for more */
4680                         break;
4681
4682                 case TCFG_WORK_AREA_VIRT:
4683                         if (goi->isconfigure) {
4684                                 target_free_all_working_areas(target);
4685                                 e = Jim_GetOpt_Wide(goi, &w);
4686                                 if (e != JIM_OK)
4687                                         return e;
4688                                 target->working_area_virt = w;
4689                                 target->working_area_virt_spec = true;
4690                         } else {
4691                                 if (goi->argc != 0)
4692                                         goto no_params;
4693                         }
4694                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4695                         /* loop for more */
4696                         break;
4697
4698                 case TCFG_WORK_AREA_PHYS:
4699                         if (goi->isconfigure) {
4700                                 target_free_all_working_areas(target);
4701                                 e = Jim_GetOpt_Wide(goi, &w);
4702                                 if (e != JIM_OK)
4703                                         return e;
4704                                 target->working_area_phys = w;
4705                                 target->working_area_phys_spec = true;
4706                         } else {
4707                                 if (goi->argc != 0)
4708                                         goto no_params;
4709                         }
4710                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4711                         /* loop for more */
4712                         break;
4713
4714                 case TCFG_WORK_AREA_SIZE:
4715                         if (goi->isconfigure) {
4716                                 target_free_all_working_areas(target);
4717                                 e = Jim_GetOpt_Wide(goi, &w);
4718                                 if (e != JIM_OK)
4719                                         return e;
4720                                 target->working_area_size = w;
4721                         } else {
4722                                 if (goi->argc != 0)
4723                                         goto no_params;
4724                         }
4725                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4726                         /* loop for more */
4727                         break;
4728
4729                 case TCFG_WORK_AREA_BACKUP:
4730                         if (goi->isconfigure) {
4731                                 target_free_all_working_areas(target);
4732                                 e = Jim_GetOpt_Wide(goi, &w);
4733                                 if (e != JIM_OK)
4734                                         return e;
4735                                 /* make this exactly 1 or 0 */
4736                                 target->backup_working_area = (!!w);
4737                         } else {
4738                                 if (goi->argc != 0)
4739                                         goto no_params;
4740                         }
4741                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4742                         /* loop for more e*/
4743                         break;
4744
4745
4746                 case TCFG_ENDIAN:
4747                         if (goi->isconfigure) {
4748                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4749                                 if (e != JIM_OK) {
4750                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4751                                         return e;
4752                                 }
4753                                 target->endianness = n->value;
4754                         } else {
4755                                 if (goi->argc != 0)
4756                                         goto no_params;
4757                         }
4758                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4759                         if (n->name == NULL) {
4760                                 target->endianness = TARGET_LITTLE_ENDIAN;
4761                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4762                         }
4763                         Jim_SetResultString(goi->interp, n->name, -1);
4764                         /* loop for more */
4765                         break;
4766
4767                 case TCFG_COREID:
4768                         if (goi->isconfigure) {
4769                                 e = Jim_GetOpt_Wide(goi, &w);
4770                                 if (e != JIM_OK)
4771                                         return e;
4772                                 target->coreid = (int32_t)w;
4773                         } else {
4774                                 if (goi->argc != 0)
4775                                         goto no_params;
4776                         }
4777                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4778                         /* loop for more */
4779                         break;
4780
4781                 case TCFG_CHAIN_POSITION:
4782                         if (goi->isconfigure) {
4783                                 Jim_Obj *o_t;
4784                                 struct jtag_tap *tap;
4785
4786                                 if (target->has_dap) {
4787                                         Jim_SetResultString(goi->interp,
4788                                                 "target requires -dap parameter instead of -chain-position!", -1);
4789                                         return JIM_ERR;
4790                                 }
4791
4792                                 target_free_all_working_areas(target);
4793                                 e = Jim_GetOpt_Obj(goi, &o_t);
4794                                 if (e != JIM_OK)
4795                                         return e;
4796                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4797                                 if (tap == NULL)
4798                                         return JIM_ERR;
4799                                 target->tap = tap;
4800                                 target->tap_configured = true;
4801                         } else {
4802                                 if (goi->argc != 0)
4803                                         goto no_params;
4804                         }
4805                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4806                         /* loop for more e*/
4807                         break;
4808                 case TCFG_DBGBASE:
4809                         if (goi->isconfigure) {
4810                                 e = Jim_GetOpt_Wide(goi, &w);
4811                                 if (e != JIM_OK)
4812                                         return e;
4813                                 target->dbgbase = (uint32_t)w;
4814                                 target->dbgbase_set = true;
4815                         } else {
4816                                 if (goi->argc != 0)
4817                                         goto no_params;
4818                         }
4819                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4820                         /* loop for more */
4821                         break;
4822                 case TCFG_RTOS:
4823                         /* RTOS */
4824                         {
4825                                 int result = rtos_create(goi, target);
4826                                 if (result != JIM_OK)
4827                                         return result;
4828                         }
4829                         /* loop for more */
4830                         break;
4831
4832                 case TCFG_DEFER_EXAMINE:
4833                         /* DEFER_EXAMINE */
4834                         target->defer_examine = true;
4835                         /* loop for more */
4836                         break;
4837
4838                 }
4839         } /* while (goi->argc) */
4840
4841
4842                 /* done - we return */
4843         return JIM_OK;
4844 }
4845
4846 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4847 {
4848         Jim_GetOptInfo goi;
4849
4850         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4851         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4852         if (goi.argc < 1) {
4853                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4854                                  "missing: -option ...");
4855                 return JIM_ERR;
4856         }
4857         struct target *target = Jim_CmdPrivData(goi.interp);
4858         return target_configure(&goi, target);
4859 }
4860
4861 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4862 {
4863         const char *cmd_name = Jim_GetString(argv[0], NULL);
4864
4865         Jim_GetOptInfo goi;
4866         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4867
4868         if (goi.argc < 2 || goi.argc > 4) {
4869                 Jim_SetResultFormatted(goi.interp,
4870                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4871                 return JIM_ERR;
4872         }
4873
4874         target_write_fn fn;
4875         fn = target_write_memory;
4876
4877         int e;
4878         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4879                 /* consume it */
4880                 struct Jim_Obj *obj;
4881                 e = Jim_GetOpt_Obj(&goi, &obj);
4882                 if (e != JIM_OK)
4883                         return e;
4884
4885                 fn = target_write_phys_memory;
4886         }
4887
4888         jim_wide a;
4889         e = Jim_GetOpt_Wide(&goi, &a);
4890         if (e != JIM_OK)
4891                 return e;
4892
4893         jim_wide b;
4894         e = Jim_GetOpt_Wide(&goi, &b);
4895         if (e != JIM_OK)
4896                 return e;
4897
4898         jim_wide c = 1;
4899         if (goi.argc == 1) {
4900                 e = Jim_GetOpt_Wide(&goi, &c);
4901                 if (e != JIM_OK)
4902                         return e;
4903         }
4904
4905         /* all args must be consumed */
4906         if (goi.argc != 0)
4907                 return JIM_ERR;
4908
4909         struct target *target = Jim_CmdPrivData(goi.interp);
4910         unsigned data_size;
4911         if (strcasecmp(cmd_name, "mww") == 0)
4912                 data_size = 4;
4913         else if (strcasecmp(cmd_name, "mwh") == 0)
4914                 data_size = 2;
4915         else if (strcasecmp(cmd_name, "mwb") == 0)
4916                 data_size = 1;
4917         else {
4918                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4919                 return JIM_ERR;
4920         }
4921
4922         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4923 }
4924
4925 /**
4926 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4927 *
4928 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4929 *         mdh [phys] <address> [<count>] - for 16 bit reads
4930 *         mdb [phys] <address> [<count>] - for  8 bit reads
4931 *
4932 *  Count defaults to 1.
4933 *
4934 *  Calls target_read_memory or target_read_phys_memory depending on
4935 *  the presence of the "phys" argument
4936 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4937 *  to int representation in base16.
4938 *  Also outputs read data in a human readable form using command_print
4939 *
4940 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4941 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4942 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4943 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4944 *  on success, with [<count>] number of elements.
4945 *
4946 *  In case of little endian target:
4947 *      Example1: "mdw 0x00000000"  returns "10123456"
4948 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4949 *      Example3: "mdb 0x00000000" returns "56"
4950 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4951 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4952 **/
4953 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4954 {
4955         const char *cmd_name = Jim_GetString(argv[0], NULL);
4956
4957         Jim_GetOptInfo goi;
4958         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4959
4960         if ((goi.argc < 1) || (goi.argc > 3)) {
4961                 Jim_SetResultFormatted(goi.interp,
4962                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4963                 return JIM_ERR;
4964         }
4965
4966         int (*fn)(struct target *target,
4967                         target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4968         fn = target_read_memory;
4969
4970         int e;
4971         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4972                 /* consume it */
4973                 struct Jim_Obj *obj;
4974                 e = Jim_GetOpt_Obj(&goi, &obj);
4975                 if (e != JIM_OK)
4976                         return e;
4977
4978                 fn = target_read_phys_memory;
4979         }
4980
4981         /* Read address parameter */
4982         jim_wide addr;
4983         e = Jim_GetOpt_Wide(&goi, &addr);
4984         if (e != JIM_OK)
4985                 return JIM_ERR;
4986
4987         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4988         jim_wide count;
4989         if (goi.argc == 1) {
4990                 e = Jim_GetOpt_Wide(&goi, &count);
4991                 if (e != JIM_OK)
4992                         return JIM_ERR;
4993         } else
4994                 count = 1;
4995
4996         /* all args must be consumed */
4997         if (goi.argc != 0)
4998                 return JIM_ERR;
4999
5000         jim_wide dwidth = 1; /* shut up gcc */
5001         if (strcasecmp(cmd_name, "mdw") == 0)
5002                 dwidth = 4;
5003         else if (strcasecmp(cmd_name, "mdh") == 0)
5004                 dwidth = 2;
5005         else if (strcasecmp(cmd_name, "mdb") == 0)
5006                 dwidth = 1;
5007         else {
5008                 LOG_ERROR("command '%s' unknown: ", cmd_name);
5009                 return JIM_ERR;
5010         }
5011
5012         /* convert count to "bytes" */
5013         int bytes = count * dwidth;
5014
5015         struct target *target = Jim_CmdPrivData(goi.interp);
5016         uint8_t  target_buf[32];
5017         jim_wide x, y, z;
5018         while (bytes > 0) {
5019                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
5020
5021                 /* Try to read out next block */
5022                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
5023
5024                 if (e != ERROR_OK) {
5025                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
5026                         return JIM_ERR;
5027                 }
5028
5029                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
5030                 switch (dwidth) {
5031                 case 4:
5032                         for (x = 0; x < 16 && x < y; x += 4) {
5033                                 z = target_buffer_get_u32(target, &(target_buf[x]));
5034                                 command_print_sameline(NULL, "%08x ", (int)(z));
5035                         }
5036                         for (; (x < 16) ; x += 4)
5037                                 command_print_sameline(NULL, "         ");
5038                         break;
5039                 case 2:
5040                         for (x = 0; x < 16 && x < y; x += 2) {
5041                                 z = target_buffer_get_u16(target, &(target_buf[x]));
5042                                 command_print_sameline(NULL, "%04x ", (int)(z));
5043                         }
5044                         for (; (x < 16) ; x += 2)
5045                                 command_print_sameline(NULL, "     ");
5046                         break;
5047                 case 1:
5048                 default:
5049                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
5050                                 z = target_buffer_get_u8(target, &(target_buf[x]));
5051                                 command_print_sameline(NULL, "%02x ", (int)(z));
5052                         }
5053                         for (; (x < 16) ; x += 1)
5054                                 command_print_sameline(NULL, "   ");
5055                         break;
5056                 }
5057                 /* ascii-ify the bytes */
5058                 for (x = 0 ; x < y ; x++) {
5059                         if ((target_buf[x] >= 0x20) &&
5060                                 (target_buf[x] <= 0x7e)) {
5061                                 /* good */
5062                         } else {
5063                                 /* smack it */
5064                                 target_buf[x] = '.';
5065                         }
5066                 }
5067                 /* space pad  */
5068                 while (x < 16) {
5069                         target_buf[x] = ' ';
5070                         x++;
5071                 }
5072                 /* terminate */
5073                 target_buf[16] = 0;
5074                 /* print - with a newline */
5075                 command_print_sameline(NULL, "%s\n", target_buf);
5076                 /* NEXT... */
5077                 bytes -= 16;
5078                 addr += 16;
5079         }
5080         return JIM_OK;
5081 }
5082
5083 static int jim_target_mem2array(Jim_Interp *interp,
5084                 int argc, Jim_Obj *const *argv)
5085 {
5086         struct target *target = Jim_CmdPrivData(interp);
5087         return target_mem2array(interp, target, argc - 1, argv + 1);
5088 }
5089
5090 static int jim_target_array2mem(Jim_Interp *interp,
5091                 int argc, Jim_Obj *const *argv)
5092 {
5093         struct target *target = Jim_CmdPrivData(interp);
5094         return target_array2mem(interp, target, argc - 1, argv + 1);
5095 }
5096
5097 static int jim_target_tap_disabled(Jim_Interp *interp)
5098 {
5099         Jim_SetResultFormatted(interp, "[TAP is disabled]");
5100         return JIM_ERR;
5101 }
5102
5103 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5104 {
5105         bool allow_defer = false;
5106
5107         Jim_GetOptInfo goi;
5108         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5109         if (goi.argc > 1) {
5110                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5111                 Jim_SetResultFormatted(goi.interp,
5112                                 "usage: %s ['allow-defer']", cmd_name);
5113                 return JIM_ERR;
5114         }
5115         if (goi.argc > 0 &&
5116             strcmp(Jim_GetString(argv[1], NULL), "allow-defer") == 0) {
5117                 /* consume it */
5118                 struct Jim_Obj *obj;
5119                 int e = Jim_GetOpt_Obj(&goi, &obj);
5120                 if (e != JIM_OK)
5121                         return e;
5122                 allow_defer = true;
5123         }
5124
5125         struct target *target = Jim_CmdPrivData(interp);
5126         if (!target->tap->enabled)
5127                 return jim_target_tap_disabled(interp);
5128
5129         if (allow_defer && target->defer_examine) {
5130                 LOG_INFO("Deferring arp_examine of %s", target_name(target));
5131                 LOG_INFO("Use arp_examine command to examine it manually!");
5132                 return JIM_OK;
5133         }
5134
5135         int e = target->type->examine(target);
5136         if (e != ERROR_OK)
5137                 return JIM_ERR;
5138         return JIM_OK;
5139 }
5140
5141 static int jim_target_was_examined(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5142 {
5143         struct target *target = Jim_CmdPrivData(interp);
5144
5145         Jim_SetResultBool(interp, target_was_examined(target));
5146         return JIM_OK;
5147 }
5148
5149 static int jim_target_examine_deferred(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5150 {
5151         struct target *target = Jim_CmdPrivData(interp);
5152
5153         Jim_SetResultBool(interp, target->defer_examine);
5154         return JIM_OK;
5155 }
5156
5157 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5158 {
5159         if (argc != 1) {
5160                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5161                 return JIM_ERR;
5162         }
5163         struct target *target = Jim_CmdPrivData(interp);
5164
5165         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
5166                 return JIM_ERR;
5167
5168         return JIM_OK;
5169 }
5170
5171 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5172 {
5173         if (argc != 1) {
5174                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5175                 return JIM_ERR;
5176         }
5177         struct target *target = Jim_CmdPrivData(interp);
5178         if (!target->tap->enabled)
5179                 return jim_target_tap_disabled(interp);
5180
5181         int e;
5182         if (!(target_was_examined(target)))
5183                 e = ERROR_TARGET_NOT_EXAMINED;
5184         else
5185                 e = target->type->poll(target);
5186         if (e != ERROR_OK)
5187                 return JIM_ERR;
5188         return JIM_OK;
5189 }
5190
5191 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5192 {
5193         Jim_GetOptInfo goi;
5194         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5195
5196         if (goi.argc != 2) {
5197                 Jim_WrongNumArgs(interp, 0, argv,
5198                                 "([tT]|[fF]|assert|deassert) BOOL");
5199                 return JIM_ERR;
5200         }
5201
5202         Jim_Nvp *n;
5203         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
5204         if (e != JIM_OK) {
5205                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
5206                 return e;
5207         }
5208         /* the halt or not param */
5209         jim_wide a;
5210         e = Jim_GetOpt_Wide(&goi, &a);
5211         if (e != JIM_OK)
5212                 return e;
5213
5214         struct target *target = Jim_CmdPrivData(goi.interp);
5215         if (!target->tap->enabled)
5216                 return jim_target_tap_disabled(interp);
5217
5218         if (!target->type->assert_reset || !target->type->deassert_reset) {
5219                 Jim_SetResultFormatted(interp,
5220                                 "No target-specific reset for %s",
5221                                 target_name(target));
5222                 return JIM_ERR;
5223         }
5224
5225         if (target->defer_examine)
5226                 target_reset_examined(target);
5227
5228         /* determine if we should halt or not. */
5229         target->reset_halt = !!a;
5230         /* When this happens - all workareas are invalid. */
5231         target_free_all_working_areas_restore(target, 0);
5232
5233         /* do the assert */
5234         if (n->value == NVP_ASSERT)
5235                 e = target->type->assert_reset(target);
5236         else
5237                 e = target->type->deassert_reset(target);
5238         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5239 }
5240
5241 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5242 {
5243         if (argc != 1) {
5244                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5245                 return JIM_ERR;
5246         }
5247         struct target *target = Jim_CmdPrivData(interp);
5248         if (!target->tap->enabled)
5249                 return jim_target_tap_disabled(interp);
5250         int e = target->type->halt(target);
5251         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5252 }
5253
5254 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5255 {
5256         Jim_GetOptInfo goi;
5257         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5258
5259         /* params:  <name>  statename timeoutmsecs */
5260         if (goi.argc != 2) {
5261                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5262                 Jim_SetResultFormatted(goi.interp,
5263                                 "%s <state_name> <timeout_in_msec>", cmd_name);
5264                 return JIM_ERR;
5265         }
5266
5267         Jim_Nvp *n;
5268         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
5269         if (e != JIM_OK) {
5270                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
5271                 return e;
5272         }
5273         jim_wide a;
5274         e = Jim_GetOpt_Wide(&goi, &a);
5275         if (e != JIM_OK)
5276                 return e;
5277         struct target *target = Jim_CmdPrivData(interp);
5278         if (!target->tap->enabled)
5279                 return jim_target_tap_disabled(interp);
5280
5281         e = target_wait_state(target, n->value, a);
5282         if (e != ERROR_OK) {
5283                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5284                 Jim_SetResultFormatted(goi.interp,
5285                                 "target: %s wait %s fails (%#s) %s",
5286                                 target_name(target), n->name,
5287                                 eObj, target_strerror_safe(e));
5288                 Jim_FreeNewObj(interp, eObj);
5289                 return JIM_ERR;
5290         }
5291         return JIM_OK;
5292 }
5293 /* List for human, Events defined for this target.
5294  * scripts/programs should use 'name cget -event NAME'
5295  */
5296 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5297 {
5298         struct command_context *cmd_ctx = current_command_context(interp);
5299         assert(cmd_ctx != NULL);
5300
5301         struct target *target = Jim_CmdPrivData(interp);
5302         struct target_event_action *teap = target->event_action;
5303         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5304                                    target->target_number,
5305                                    target_name(target));
5306         command_print(cmd_ctx, "%-25s | Body", "Event");
5307         command_print(cmd_ctx, "------------------------- | "
5308                         "----------------------------------------");
5309         while (teap) {
5310                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5311                 command_print(cmd_ctx, "%-25s | %s",
5312                                 opt->name, Jim_GetString(teap->body, NULL));
5313                 teap = teap->next;
5314         }
5315         command_print(cmd_ctx, "***END***");
5316         return JIM_OK;
5317 }
5318 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5319 {
5320         if (argc != 1) {
5321                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5322                 return JIM_ERR;
5323         }
5324         struct target *target = Jim_CmdPrivData(interp);
5325         Jim_SetResultString(interp, target_state_name(target), -1);
5326         return JIM_OK;
5327 }
5328 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5329 {
5330         Jim_GetOptInfo goi;
5331         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5332         if (goi.argc != 1) {
5333                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5334                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5335                 return JIM_ERR;
5336         }
5337         Jim_Nvp *n;
5338         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5339         if (e != JIM_OK) {
5340                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5341                 return e;
5342         }
5343         struct target *target = Jim_CmdPrivData(interp);
5344         target_handle_event(target, n->value);
5345         return JIM_OK;
5346 }
5347
5348 static const struct command_registration target_instance_command_handlers[] = {
5349         {
5350                 .name = "configure",
5351                 .mode = COMMAND_CONFIG,
5352                 .jim_handler = jim_target_configure,
5353                 .help  = "configure a new target for use",
5354                 .usage = "[target_attribute ...]",
5355         },
5356         {
5357                 .name = "cget",
5358                 .mode = COMMAND_ANY,
5359                 .jim_handler = jim_target_configure,
5360                 .help  = "returns the specified target attribute",
5361                 .usage = "target_attribute",
5362         },
5363         {
5364                 .name = "mww",
5365                 .mode = COMMAND_EXEC,
5366                 .jim_handler = jim_target_mw,
5367                 .help = "Write 32-bit word(s) to target memory",
5368                 .usage = "address data [count]",
5369         },
5370         {
5371                 .name = "mwh",
5372                 .mode = COMMAND_EXEC,
5373                 .jim_handler = jim_target_mw,
5374                 .help = "Write 16-bit half-word(s) to target memory",
5375                 .usage = "address data [count]",
5376         },
5377         {
5378                 .name = "mwb",
5379                 .mode = COMMAND_EXEC,
5380                 .jim_handler = jim_target_mw,
5381                 .help = "Write byte(s) to target memory",
5382                 .usage = "address data [count]",
5383         },
5384         {
5385                 .name = "mdw",
5386                 .mode = COMMAND_EXEC,
5387                 .jim_handler = jim_target_md,
5388                 .help = "Display target memory as 32-bit words",
5389                 .usage = "address [count]",
5390         },
5391         {
5392                 .name = "mdh",
5393                 .mode = COMMAND_EXEC,
5394                 .jim_handler = jim_target_md,
5395                 .help = "Display target memory as 16-bit half-words",
5396                 .usage = "address [count]",
5397         },
5398         {
5399                 .name = "mdb",
5400                 .mode = COMMAND_EXEC,
5401                 .jim_handler = jim_target_md,
5402                 .help = "Display target memory as 8-bit bytes",
5403                 .usage = "address [count]",
5404         },
5405         {
5406                 .name = "array2mem",
5407                 .mode = COMMAND_EXEC,
5408                 .jim_handler = jim_target_array2mem,
5409                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5410                         "to target memory",
5411                 .usage = "arrayname bitwidth address count",
5412         },
5413         {
5414                 .name = "mem2array",
5415                 .mode = COMMAND_EXEC,
5416                 .jim_handler = jim_target_mem2array,
5417                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5418                         "from target memory",
5419                 .usage = "arrayname bitwidth address count",
5420         },
5421         {
5422                 .name = "eventlist",
5423                 .mode = COMMAND_EXEC,
5424                 .jim_handler = jim_target_event_list,
5425                 .help = "displays a table of events defined for this target",
5426         },
5427         {
5428                 .name = "curstate",
5429                 .mode = COMMAND_EXEC,
5430                 .jim_handler = jim_target_current_state,
5431                 .help = "displays the current state of this target",
5432         },
5433         {
5434                 .name = "arp_examine",
5435                 .mode = COMMAND_EXEC,
5436                 .jim_handler = jim_target_examine,
5437                 .help = "used internally for reset processing",
5438                 .usage = "arp_examine ['allow-defer']",
5439         },
5440         {
5441                 .name = "was_examined",
5442                 .mode = COMMAND_EXEC,
5443                 .jim_handler = jim_target_was_examined,
5444                 .help = "used internally for reset processing",
5445                 .usage = "was_examined",
5446         },
5447         {
5448                 .name = "examine_deferred",
5449                 .mode = COMMAND_EXEC,
5450                 .jim_handler = jim_target_examine_deferred,
5451                 .help = "used internally for reset processing",
5452                 .usage = "examine_deferred",
5453         },
5454         {
5455                 .name = "arp_halt_gdb",
5456                 .mode = COMMAND_EXEC,
5457                 .jim_handler = jim_target_halt_gdb,
5458                 .help = "used internally for reset processing to halt GDB",
5459         },
5460         {
5461                 .name = "arp_poll",
5462                 .mode = COMMAND_EXEC,
5463                 .jim_handler = jim_target_poll,
5464                 .help = "used internally for reset processing",
5465         },
5466         {
5467                 .name = "arp_reset",
5468                 .mode = COMMAND_EXEC,
5469                 .jim_handler = jim_target_reset,
5470                 .help = "used internally for reset processing",
5471         },
5472         {
5473                 .name = "arp_halt",
5474                 .mode = COMMAND_EXEC,
5475                 .jim_handler = jim_target_halt,
5476                 .help = "used internally for reset processing",
5477         },
5478         {
5479                 .name = "arp_waitstate",
5480                 .mode = COMMAND_EXEC,
5481                 .jim_handler = jim_target_wait_state,
5482                 .help = "used internally for reset processing",
5483         },
5484         {
5485                 .name = "invoke-event",
5486                 .mode = COMMAND_EXEC,
5487                 .jim_handler = jim_target_invoke_event,
5488                 .help = "invoke handler for specified event",
5489                 .usage = "event_name",
5490         },
5491         COMMAND_REGISTRATION_DONE
5492 };
5493
5494 static int target_create(Jim_GetOptInfo *goi)
5495 {
5496         Jim_Obj *new_cmd;
5497         Jim_Cmd *cmd;
5498         const char *cp;
5499         int e;
5500         int x;
5501         struct target *target;
5502         struct command_context *cmd_ctx;
5503
5504         cmd_ctx = current_command_context(goi->interp);
5505         assert(cmd_ctx != NULL);
5506
5507         if (goi->argc < 3) {
5508                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5509                 return JIM_ERR;
5510         }
5511
5512         /* COMMAND */
5513         Jim_GetOpt_Obj(goi, &new_cmd);
5514         /* does this command exist? */
5515         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5516         if (cmd) {
5517                 cp = Jim_GetString(new_cmd, NULL);
5518                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5519                 return JIM_ERR;
5520         }
5521
5522         /* TYPE */
5523         e = Jim_GetOpt_String(goi, &cp, NULL);
5524         if (e != JIM_OK)
5525                 return e;
5526         struct transport *tr = get_current_transport();
5527         if (tr->override_target) {
5528                 e = tr->override_target(&cp);
5529                 if (e != ERROR_OK) {
5530                         LOG_ERROR("The selected transport doesn't support this target");
5531                         return JIM_ERR;
5532                 }
5533                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5534         }
5535         /* now does target type exist */
5536         for (x = 0 ; target_types[x] ; x++) {
5537                 if (0 == strcmp(cp, target_types[x]->name)) {
5538                         /* found */
5539                         break;
5540                 }
5541
5542                 /* check for deprecated name */
5543                 if (target_types[x]->deprecated_name) {
5544                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5545                                 /* found */
5546                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5547                                 break;
5548                         }
5549                 }
5550         }
5551         if (target_types[x] == NULL) {
5552                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5553                 for (x = 0 ; target_types[x] ; x++) {
5554                         if (target_types[x + 1]) {
5555                                 Jim_AppendStrings(goi->interp,
5556                                                                    Jim_GetResult(goi->interp),
5557                                                                    target_types[x]->name,
5558                                                                    ", ", NULL);
5559                         } else {
5560                                 Jim_AppendStrings(goi->interp,
5561                                                                    Jim_GetResult(goi->interp),
5562                                                                    " or ",
5563                                                                    target_types[x]->name, NULL);
5564                         }
5565                 }
5566                 return JIM_ERR;
5567         }
5568
5569         /* Create it */
5570         target = calloc(1, sizeof(struct target));
5571         /* set target number */
5572         target->target_number = new_target_number();
5573         cmd_ctx->current_target = target;
5574
5575         /* allocate memory for each unique target type */
5576         target->type = calloc(1, sizeof(struct target_type));
5577
5578         memcpy(target->type, target_types[x], sizeof(struct target_type));
5579
5580         /* will be set by "-endian" */
5581         target->endianness = TARGET_ENDIAN_UNKNOWN;
5582
5583         /* default to first core, override with -coreid */
5584         target->coreid = 0;
5585
5586         target->working_area        = 0x0;
5587         target->working_area_size   = 0x0;
5588         target->working_areas       = NULL;
5589         target->backup_working_area = 0;
5590
5591         target->state               = TARGET_UNKNOWN;
5592         target->debug_reason        = DBG_REASON_UNDEFINED;
5593         target->reg_cache           = NULL;
5594         target->breakpoints         = NULL;
5595         target->watchpoints         = NULL;
5596         target->next                = NULL;
5597         target->arch_info           = NULL;
5598
5599         target->verbose_halt_msg        = true;
5600
5601         target->halt_issued                     = false;
5602
5603         /* initialize trace information */
5604         target->trace_info = calloc(1, sizeof(struct trace));
5605
5606         target->dbgmsg          = NULL;
5607         target->dbg_msg_enabled = 0;
5608
5609         target->endianness = TARGET_ENDIAN_UNKNOWN;
5610
5611         target->rtos = NULL;
5612         target->rtos_auto_detect = false;
5613
5614         /* Do the rest as "configure" options */
5615         goi->isconfigure = 1;
5616         e = target_configure(goi, target);
5617
5618         if (e == JIM_OK) {
5619                 if (target->has_dap) {
5620                         if (!target->dap_configured) {
5621                                 Jim_SetResultString(goi->interp, "-dap ?name? required when creating target", -1);
5622                                 e = JIM_ERR;
5623                         }
5624                 } else {
5625                         if (!target->tap_configured) {
5626                                 Jim_SetResultString(goi->interp, "-chain-position ?name? required when creating target", -1);
5627                                 e = JIM_ERR;
5628                         }
5629                 }
5630                 /* tap must be set after target was configured */
5631                 if (target->tap == NULL)
5632                         e = JIM_ERR;
5633         }
5634
5635         if (e != JIM_OK) {
5636                 free(target->type);
5637                 free(target);
5638                 return e;
5639         }
5640
5641         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5642                 /* default endian to little if not specified */
5643                 target->endianness = TARGET_LITTLE_ENDIAN;
5644         }
5645
5646         cp = Jim_GetString(new_cmd, NULL);
5647         target->cmd_name = strdup(cp);
5648
5649         if (target->type->target_create) {
5650                 e = (*(target->type->target_create))(target, goi->interp);
5651                 if (e != ERROR_OK) {
5652                         LOG_DEBUG("target_create failed");
5653                         free(target->type);
5654                         free(target->cmd_name);
5655                         free(target);
5656                         return JIM_ERR;
5657                 }
5658         }
5659
5660         /* create the target specific commands */
5661         if (target->type->commands) {
5662                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5663                 if (ERROR_OK != e)
5664                         LOG_ERROR("unable to register '%s' commands", cp);
5665         }
5666
5667         /* append to end of list */
5668         {
5669                 struct target **tpp;
5670                 tpp = &(all_targets);
5671                 while (*tpp)
5672                         tpp = &((*tpp)->next);
5673                 *tpp = target;
5674         }
5675
5676         /* now - create the new target name command */
5677         const struct command_registration target_subcommands[] = {
5678                 {
5679                         .chain = target_instance_command_handlers,
5680                 },
5681                 {
5682                         .chain = target->type->commands,
5683                 },
5684                 COMMAND_REGISTRATION_DONE
5685         };
5686         const struct command_registration target_commands[] = {
5687                 {
5688                         .name = cp,
5689                         .mode = COMMAND_ANY,
5690                         .help = "target command group",
5691                         .usage = "",
5692                         .chain = target_subcommands,
5693                 },
5694                 COMMAND_REGISTRATION_DONE
5695         };
5696         e = register_commands(cmd_ctx, NULL, target_commands);
5697         if (ERROR_OK != e)
5698                 return JIM_ERR;
5699
5700         struct command *c = command_find_in_context(cmd_ctx, cp);
5701         assert(c);
5702         command_set_handler_data(c, target);
5703
5704         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5705 }
5706
5707 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5708 {
5709         if (argc != 1) {
5710                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5711                 return JIM_ERR;
5712         }
5713         struct command_context *cmd_ctx = current_command_context(interp);
5714         assert(cmd_ctx != NULL);
5715
5716         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5717         return JIM_OK;
5718 }
5719
5720 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5721 {
5722         if (argc != 1) {
5723                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5724                 return JIM_ERR;
5725         }
5726         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5727         for (unsigned x = 0; NULL != target_types[x]; x++) {
5728                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5729                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5730         }
5731         return JIM_OK;
5732 }
5733
5734 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5735 {
5736         if (argc != 1) {
5737                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5738                 return JIM_ERR;
5739         }
5740         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5741         struct target *target = all_targets;
5742         while (target) {
5743                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5744                         Jim_NewStringObj(interp, target_name(target), -1));
5745                 target = target->next;
5746         }
5747         return JIM_OK;
5748 }
5749
5750 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5751 {
5752         int i;
5753         const char *targetname;
5754         int retval, len;
5755         struct target *target = (struct target *) NULL;
5756         struct target_list *head, *curr, *new;
5757         curr = (struct target_list *) NULL;
5758         head = (struct target_list *) NULL;
5759
5760         retval = 0;
5761         LOG_DEBUG("%d", argc);
5762         /* argv[1] = target to associate in smp
5763          * argv[2] = target to assoicate in smp
5764          * argv[3] ...
5765          */
5766
5767         for (i = 1; i < argc; i++) {
5768
5769                 targetname = Jim_GetString(argv[i], &len);
5770                 target = get_target(targetname);
5771                 LOG_DEBUG("%s ", targetname);
5772                 if (target) {
5773                         new = malloc(sizeof(struct target_list));
5774                         new->target = target;
5775                         new->next = (struct target_list *)NULL;
5776                         if (head == (struct target_list *)NULL) {
5777                                 head = new;
5778                                 curr = head;
5779                         } else {
5780                                 curr->next = new;
5781                                 curr = new;
5782                         }
5783                 }
5784         }
5785         /*  now parse the list of cpu and put the target in smp mode*/
5786         curr = head;
5787
5788         while (curr != (struct target_list *)NULL) {
5789                 target = curr->target;
5790                 target->smp = 1;
5791                 target->head = head;
5792                 curr = curr->next;
5793         }
5794
5795         if (target && target->rtos)
5796                 retval = rtos_smp_init(head->target);
5797
5798         return retval;
5799 }
5800
5801
5802 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5803 {
5804         Jim_GetOptInfo goi;
5805         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5806         if (goi.argc < 3) {
5807                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5808                         "<name> <target_type> [<target_options> ...]");
5809                 return JIM_ERR;
5810         }
5811         return target_create(&goi);
5812 }
5813
5814 static const struct command_registration target_subcommand_handlers[] = {
5815         {
5816                 .name = "init",
5817                 .mode = COMMAND_CONFIG,
5818                 .handler = handle_target_init_command,
5819                 .help = "initialize targets",
5820         },
5821         {
5822                 .name = "create",
5823                 /* REVISIT this should be COMMAND_CONFIG ... */
5824                 .mode = COMMAND_ANY,
5825                 .jim_handler = jim_target_create,
5826                 .usage = "name type '-chain-position' name [options ...]",
5827                 .help = "Creates and selects a new target",
5828         },
5829         {
5830                 .name = "current",
5831                 .mode = COMMAND_ANY,
5832                 .jim_handler = jim_target_current,
5833                 .help = "Returns the currently selected target",
5834         },
5835         {
5836                 .name = "types",
5837                 .mode = COMMAND_ANY,
5838                 .jim_handler = jim_target_types,
5839                 .help = "Returns the available target types as "
5840                                 "a list of strings",
5841         },
5842         {
5843                 .name = "names",
5844                 .mode = COMMAND_ANY,
5845                 .jim_handler = jim_target_names,
5846                 .help = "Returns the names of all targets as a list of strings",
5847         },
5848         {
5849                 .name = "smp",
5850                 .mode = COMMAND_ANY,
5851                 .jim_handler = jim_target_smp,
5852                 .usage = "targetname1 targetname2 ...",
5853                 .help = "gather several target in a smp list"
5854         },
5855
5856         COMMAND_REGISTRATION_DONE
5857 };
5858
5859 struct FastLoad {
5860         target_addr_t address;
5861         uint8_t *data;
5862         int length;
5863
5864 };
5865
5866 static int fastload_num;
5867 static struct FastLoad *fastload;
5868
5869 static void free_fastload(void)
5870 {
5871         if (fastload != NULL) {
5872                 int i;
5873                 for (i = 0; i < fastload_num; i++) {
5874                         if (fastload[i].data)
5875                                 free(fastload[i].data);
5876                 }
5877                 free(fastload);
5878                 fastload = NULL;
5879         }
5880 }
5881
5882 COMMAND_HANDLER(handle_fast_load_image_command)
5883 {
5884         uint8_t *buffer;
5885         size_t buf_cnt;
5886         uint32_t image_size;
5887         target_addr_t min_address = 0;
5888         target_addr_t max_address = -1;
5889         int i;
5890
5891         struct image image;
5892
5893         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5894                         &image, &min_address, &max_address);
5895         if (ERROR_OK != retval)
5896                 return retval;
5897
5898         struct duration bench;
5899         duration_start(&bench);
5900
5901         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5902         if (retval != ERROR_OK)
5903                 return retval;
5904
5905         image_size = 0x0;
5906         retval = ERROR_OK;
5907         fastload_num = image.num_sections;
5908         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5909         if (fastload == NULL) {
5910                 command_print(CMD_CTX, "out of memory");
5911                 image_close(&image);
5912                 return ERROR_FAIL;
5913         }
5914         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5915         for (i = 0; i < image.num_sections; i++) {
5916                 buffer = malloc(image.sections[i].size);
5917                 if (buffer == NULL) {
5918                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5919                                                   (int)(image.sections[i].size));
5920                         retval = ERROR_FAIL;
5921                         break;
5922                 }
5923
5924                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5925                 if (retval != ERROR_OK) {
5926                         free(buffer);
5927                         break;
5928                 }
5929
5930                 uint32_t offset = 0;
5931                 uint32_t length = buf_cnt;
5932
5933                 /* DANGER!!! beware of unsigned comparision here!!! */
5934
5935                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5936                                 (image.sections[i].base_address < max_address)) {
5937                         if (image.sections[i].base_address < min_address) {
5938                                 /* clip addresses below */
5939                                 offset += min_address-image.sections[i].base_address;
5940                                 length -= offset;
5941                         }
5942
5943                         if (image.sections[i].base_address + buf_cnt > max_address)
5944                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5945
5946                         fastload[i].address = image.sections[i].base_address + offset;
5947                         fastload[i].data = malloc(length);
5948                         if (fastload[i].data == NULL) {
5949                                 free(buffer);
5950                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5951                                                           length);
5952                                 retval = ERROR_FAIL;
5953                                 break;
5954                         }
5955                         memcpy(fastload[i].data, buffer + offset, length);
5956                         fastload[i].length = length;
5957
5958                         image_size += length;
5959                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5960                                                   (unsigned int)length,
5961                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5962                 }
5963
5964                 free(buffer);
5965         }
5966
5967         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5968                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5969                                 "in %fs (%0.3f KiB/s)", image_size,
5970                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5971
5972                 command_print(CMD_CTX,
5973                                 "WARNING: image has not been loaded to target!"
5974                                 "You can issue a 'fast_load' to finish loading.");
5975         }
5976
5977         image_close(&image);
5978
5979         if (retval != ERROR_OK)
5980                 free_fastload();
5981
5982         return retval;
5983 }
5984
5985 COMMAND_HANDLER(handle_fast_load_command)
5986 {
5987         if (CMD_ARGC > 0)
5988                 return ERROR_COMMAND_SYNTAX_ERROR;
5989         if (fastload == NULL) {
5990                 LOG_ERROR("No image in memory");
5991                 return ERROR_FAIL;
5992         }
5993         int i;
5994         int64_t ms = timeval_ms();
5995         int size = 0;
5996         int retval = ERROR_OK;
5997         for (i = 0; i < fastload_num; i++) {
5998                 struct target *target = get_current_target(CMD_CTX);
5999                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
6000                                           (unsigned int)(fastload[i].address),
6001                                           (unsigned int)(fastload[i].length));
6002                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
6003                 if (retval != ERROR_OK)
6004                         break;
6005                 size += fastload[i].length;
6006         }
6007         if (retval == ERROR_OK) {
6008                 int64_t after = timeval_ms();
6009                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
6010         }
6011         return retval;
6012 }
6013
6014 static const struct command_registration target_command_handlers[] = {
6015         {
6016                 .name = "targets",
6017                 .handler = handle_targets_command,
6018                 .mode = COMMAND_ANY,
6019                 .help = "change current default target (one parameter) "
6020                         "or prints table of all targets (no parameters)",
6021                 .usage = "[target]",
6022         },
6023         {
6024                 .name = "target",
6025                 .mode = COMMAND_CONFIG,
6026                 .help = "configure target",
6027
6028                 .chain = target_subcommand_handlers,
6029         },
6030         COMMAND_REGISTRATION_DONE
6031 };
6032
6033 int target_register_commands(struct command_context *cmd_ctx)
6034 {
6035         return register_commands(cmd_ctx, NULL, target_command_handlers);
6036 }
6037
6038 static bool target_reset_nag = true;
6039
6040 bool get_target_reset_nag(void)
6041 {
6042         return target_reset_nag;
6043 }
6044
6045 COMMAND_HANDLER(handle_target_reset_nag)
6046 {
6047         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
6048                         &target_reset_nag, "Nag after each reset about options to improve "
6049                         "performance");
6050 }
6051
6052 COMMAND_HANDLER(handle_ps_command)
6053 {
6054         struct target *target = get_current_target(CMD_CTX);
6055         char *display;
6056         if (target->state != TARGET_HALTED) {
6057                 LOG_INFO("target not halted !!");
6058                 return ERROR_OK;
6059         }
6060
6061         if ((target->rtos) && (target->rtos->type)
6062                         && (target->rtos->type->ps_command)) {
6063                 display = target->rtos->type->ps_command(target);
6064                 command_print(CMD_CTX, "%s", display);
6065                 free(display);
6066                 return ERROR_OK;
6067         } else {
6068                 LOG_INFO("failed");
6069                 return ERROR_TARGET_FAILURE;
6070         }
6071 }
6072
6073 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
6074 {
6075         if (text != NULL)
6076                 command_print_sameline(cmd_ctx, "%s", text);
6077         for (int i = 0; i < size; i++)
6078                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
6079         command_print(cmd_ctx, " ");
6080 }
6081
6082 COMMAND_HANDLER(handle_test_mem_access_command)
6083 {
6084         struct target *target = get_current_target(CMD_CTX);
6085         uint32_t test_size;
6086         int retval = ERROR_OK;
6087
6088         if (target->state != TARGET_HALTED) {
6089                 LOG_INFO("target not halted !!");
6090                 return ERROR_FAIL;
6091         }
6092
6093         if (CMD_ARGC != 1)
6094                 return ERROR_COMMAND_SYNTAX_ERROR;
6095
6096         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
6097
6098         /* Test reads */
6099         size_t num_bytes = test_size + 4;
6100
6101         struct working_area *wa = NULL;
6102         retval = target_alloc_working_area(target, num_bytes, &wa);
6103         if (retval != ERROR_OK) {
6104                 LOG_ERROR("Not enough working area");
6105                 return ERROR_FAIL;
6106         }
6107
6108         uint8_t *test_pattern = malloc(num_bytes);
6109
6110         for (size_t i = 0; i < num_bytes; i++)
6111                 test_pattern[i] = rand();
6112
6113         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6114         if (retval != ERROR_OK) {
6115                 LOG_ERROR("Test pattern write failed");
6116                 goto out;
6117         }
6118
6119         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6120                 for (int size = 1; size <= 4; size *= 2) {
6121                         for (int offset = 0; offset < 4; offset++) {
6122                                 uint32_t count = test_size / size;
6123                                 size_t host_bufsiz = (count + 2) * size + host_offset;
6124                                 uint8_t *read_ref = malloc(host_bufsiz);
6125                                 uint8_t *read_buf = malloc(host_bufsiz);
6126
6127                                 for (size_t i = 0; i < host_bufsiz; i++) {
6128                                         read_ref[i] = rand();
6129                                         read_buf[i] = read_ref[i];
6130                                 }
6131                                 command_print_sameline(CMD_CTX,
6132                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
6133                                                 size, offset, host_offset ? "un" : "");
6134
6135                                 struct duration bench;
6136                                 duration_start(&bench);
6137
6138                                 retval = target_read_memory(target, wa->address + offset, size, count,
6139                                                 read_buf + size + host_offset);
6140
6141                                 duration_measure(&bench);
6142
6143                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6144                                         command_print(CMD_CTX, "Unsupported alignment");
6145                                         goto next;
6146                                 } else if (retval != ERROR_OK) {
6147                                         command_print(CMD_CTX, "Memory read failed");
6148                                         goto next;
6149                                 }
6150
6151                                 /* replay on host */
6152                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
6153
6154                                 /* check result */
6155                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
6156                                 if (result == 0) {
6157                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6158                                                         duration_elapsed(&bench),
6159                                                         duration_kbps(&bench, count * size));
6160                                 } else {
6161                                         command_print(CMD_CTX, "Compare failed");
6162                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
6163                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
6164                                 }
6165 next:
6166                                 free(read_ref);
6167                                 free(read_buf);
6168                         }
6169                 }
6170         }
6171
6172 out:
6173         free(test_pattern);
6174
6175         if (wa != NULL)
6176                 target_free_working_area(target, wa);
6177
6178         /* Test writes */
6179         num_bytes = test_size + 4 + 4 + 4;
6180
6181         retval = target_alloc_working_area(target, num_bytes, &wa);
6182         if (retval != ERROR_OK) {
6183                 LOG_ERROR("Not enough working area");
6184                 return ERROR_FAIL;
6185         }
6186
6187         test_pattern = malloc(num_bytes);
6188
6189         for (size_t i = 0; i < num_bytes; i++)
6190                 test_pattern[i] = rand();
6191
6192         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6193                 for (int size = 1; size <= 4; size *= 2) {
6194                         for (int offset = 0; offset < 4; offset++) {
6195                                 uint32_t count = test_size / size;
6196                                 size_t host_bufsiz = count * size + host_offset;
6197                                 uint8_t *read_ref = malloc(num_bytes);
6198                                 uint8_t *read_buf = malloc(num_bytes);
6199                                 uint8_t *write_buf = malloc(host_bufsiz);
6200
6201                                 for (size_t i = 0; i < host_bufsiz; i++)
6202                                         write_buf[i] = rand();
6203                                 command_print_sameline(CMD_CTX,
6204                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
6205                                                 size, offset, host_offset ? "un" : "");
6206
6207                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6208                                 if (retval != ERROR_OK) {
6209                                         command_print(CMD_CTX, "Test pattern write failed");
6210                                         goto nextw;
6211                                 }
6212
6213                                 /* replay on host */
6214                                 memcpy(read_ref, test_pattern, num_bytes);
6215                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
6216
6217                                 struct duration bench;
6218                                 duration_start(&bench);
6219
6220                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
6221                                                 write_buf + host_offset);
6222
6223                                 duration_measure(&bench);
6224
6225                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6226                                         command_print(CMD_CTX, "Unsupported alignment");
6227                                         goto nextw;
6228                                 } else if (retval != ERROR_OK) {
6229                                         command_print(CMD_CTX, "Memory write failed");
6230                                         goto nextw;
6231                                 }
6232
6233                                 /* read back */
6234                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
6235                                 if (retval != ERROR_OK) {
6236                                         command_print(CMD_CTX, "Test pattern write failed");
6237                                         goto nextw;
6238                                 }
6239
6240                                 /* check result */
6241                                 int result = memcmp(read_ref, read_buf, num_bytes);
6242                                 if (result == 0) {
6243                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6244                                                         duration_elapsed(&bench),
6245                                                         duration_kbps(&bench, count * size));
6246                                 } else {
6247                                         command_print(CMD_CTX, "Compare failed");
6248                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
6249                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
6250                                 }
6251 nextw:
6252                                 free(read_ref);
6253                                 free(read_buf);
6254                         }
6255                 }
6256         }
6257
6258         free(test_pattern);
6259
6260         if (wa != NULL)
6261                 target_free_working_area(target, wa);
6262         return retval;
6263 }
6264
6265 static const struct command_registration target_exec_command_handlers[] = {
6266         {
6267                 .name = "fast_load_image",
6268                 .handler = handle_fast_load_image_command,
6269                 .mode = COMMAND_ANY,
6270                 .help = "Load image into server memory for later use by "
6271                         "fast_load; primarily for profiling",
6272                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6273                         "[min_address [max_length]]",
6274         },
6275         {
6276                 .name = "fast_load",
6277                 .handler = handle_fast_load_command,
6278                 .mode = COMMAND_EXEC,
6279                 .help = "loads active fast load image to current target "
6280                         "- mainly for profiling purposes",
6281                 .usage = "",
6282         },
6283         {
6284                 .name = "profile",
6285                 .handler = handle_profile_command,
6286                 .mode = COMMAND_EXEC,
6287                 .usage = "seconds filename [start end]",
6288                 .help = "profiling samples the CPU PC",
6289         },
6290         /** @todo don't register virt2phys() unless target supports it */
6291         {
6292                 .name = "virt2phys",
6293                 .handler = handle_virt2phys_command,
6294                 .mode = COMMAND_ANY,
6295                 .help = "translate a virtual address into a physical address",
6296                 .usage = "virtual_address",
6297         },
6298         {
6299                 .name = "reg",
6300                 .handler = handle_reg_command,
6301                 .mode = COMMAND_EXEC,
6302                 .help = "display (reread from target with \"force\") or set a register; "
6303                         "with no arguments, displays all registers and their values",
6304                 .usage = "[(register_number|register_name) [(value|'force')]]",
6305         },
6306         {
6307                 .name = "poll",
6308                 .handler = handle_poll_command,
6309                 .mode = COMMAND_EXEC,
6310                 .help = "poll target state; or reconfigure background polling",
6311                 .usage = "['on'|'off']",
6312         },
6313         {
6314                 .name = "wait_halt",
6315                 .handler = handle_wait_halt_command,
6316                 .mode = COMMAND_EXEC,
6317                 .help = "wait up to the specified number of milliseconds "
6318                         "(default 5000) for a previously requested halt",
6319                 .usage = "[milliseconds]",
6320         },
6321         {
6322                 .name = "halt",
6323                 .handler = handle_halt_command,
6324                 .mode = COMMAND_EXEC,
6325                 .help = "request target to halt, then wait up to the specified"
6326                         "number of milliseconds (default 5000) for it to complete",
6327                 .usage = "[milliseconds]",
6328         },
6329         {
6330                 .name = "resume",
6331                 .handler = handle_resume_command,
6332                 .mode = COMMAND_EXEC,
6333                 .help = "resume target execution from current PC or address",
6334                 .usage = "[address]",
6335         },
6336         {
6337                 .name = "reset",
6338                 .handler = handle_reset_command,
6339                 .mode = COMMAND_EXEC,
6340                 .usage = "[run|halt|init]",
6341                 .help = "Reset all targets into the specified mode."
6342                         "Default reset mode is run, if not given.",
6343         },
6344         {
6345                 .name = "soft_reset_halt",
6346                 .handler = handle_soft_reset_halt_command,
6347                 .mode = COMMAND_EXEC,
6348                 .usage = "",
6349                 .help = "halt the target and do a soft reset",
6350         },
6351         {
6352                 .name = "step",
6353                 .handler = handle_step_command,
6354                 .mode = COMMAND_EXEC,
6355                 .help = "step one instruction from current PC or address",
6356                 .usage = "[address]",
6357         },
6358         {
6359                 .name = "mdd",
6360                 .handler = handle_md_command,
6361                 .mode = COMMAND_EXEC,
6362                 .help = "display memory words",
6363                 .usage = "['phys'] address [count]",
6364         },
6365         {
6366                 .name = "mdw",
6367                 .handler = handle_md_command,
6368                 .mode = COMMAND_EXEC,
6369                 .help = "display memory words",
6370                 .usage = "['phys'] address [count]",
6371         },
6372         {
6373                 .name = "mdh",
6374                 .handler = handle_md_command,
6375                 .mode = COMMAND_EXEC,
6376                 .help = "display memory half-words",
6377                 .usage = "['phys'] address [count]",
6378         },
6379         {
6380                 .name = "mdb",
6381                 .handler = handle_md_command,
6382                 .mode = COMMAND_EXEC,
6383                 .help = "display memory bytes",
6384                 .usage = "['phys'] address [count]",
6385         },
6386         {
6387                 .name = "mwd",
6388                 .handler = handle_mw_command,
6389                 .mode = COMMAND_EXEC,
6390                 .help = "write memory word",
6391                 .usage = "['phys'] address value [count]",
6392         },
6393         {
6394                 .name = "mww",
6395                 .handler = handle_mw_command,
6396                 .mode = COMMAND_EXEC,
6397                 .help = "write memory word",
6398                 .usage = "['phys'] address value [count]",
6399         },
6400         {
6401                 .name = "mwh",
6402                 .handler = handle_mw_command,
6403                 .mode = COMMAND_EXEC,
6404                 .help = "write memory half-word",
6405                 .usage = "['phys'] address value [count]",
6406         },
6407         {
6408                 .name = "mwb",
6409                 .handler = handle_mw_command,
6410                 .mode = COMMAND_EXEC,
6411                 .help = "write memory byte",
6412                 .usage = "['phys'] address value [count]",
6413         },
6414         {
6415                 .name = "bp",
6416                 .handler = handle_bp_command,
6417                 .mode = COMMAND_EXEC,
6418                 .help = "list or set hardware or software breakpoint",
6419                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
6420         },
6421         {
6422                 .name = "rbp",
6423                 .handler = handle_rbp_command,
6424                 .mode = COMMAND_EXEC,
6425                 .help = "remove breakpoint",
6426                 .usage = "address",
6427         },
6428         {
6429                 .name = "wp",
6430                 .handler = handle_wp_command,
6431                 .mode = COMMAND_EXEC,
6432                 .help = "list (no params) or create watchpoints",
6433                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6434         },
6435         {
6436                 .name = "rwp",
6437                 .handler = handle_rwp_command,
6438                 .mode = COMMAND_EXEC,
6439                 .help = "remove watchpoint",
6440                 .usage = "address",
6441         },
6442         {
6443                 .name = "load_image",
6444                 .handler = handle_load_image_command,
6445                 .mode = COMMAND_EXEC,
6446                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6447                         "[min_address] [max_length]",
6448         },
6449         {
6450                 .name = "dump_image",
6451                 .handler = handle_dump_image_command,
6452                 .mode = COMMAND_EXEC,
6453                 .usage = "filename address size",
6454         },
6455         {
6456                 .name = "verify_image_checksum",
6457                 .handler = handle_verify_image_checksum_command,
6458                 .mode = COMMAND_EXEC,
6459                 .usage = "filename [offset [type]]",
6460         },
6461         {
6462                 .name = "verify_image",
6463                 .handler = handle_verify_image_command,
6464                 .mode = COMMAND_EXEC,
6465                 .usage = "filename [offset [type]]",
6466         },
6467         {
6468                 .name = "test_image",
6469                 .handler = handle_test_image_command,
6470                 .mode = COMMAND_EXEC,
6471                 .usage = "filename [offset [type]]",
6472         },
6473         {
6474                 .name = "mem2array",
6475                 .mode = COMMAND_EXEC,
6476                 .jim_handler = jim_mem2array,
6477                 .help = "read 8/16/32 bit memory and return as a TCL array "
6478                         "for script processing",
6479                 .usage = "arrayname bitwidth address count",
6480         },
6481         {
6482                 .name = "array2mem",
6483                 .mode = COMMAND_EXEC,
6484                 .jim_handler = jim_array2mem,
6485                 .help = "convert a TCL array to memory locations "
6486                         "and write the 8/16/32 bit values",
6487                 .usage = "arrayname bitwidth address count",
6488         },
6489         {
6490                 .name = "reset_nag",
6491                 .handler = handle_target_reset_nag,
6492                 .mode = COMMAND_ANY,
6493                 .help = "Nag after each reset about options that could have been "
6494                                 "enabled to improve performance. ",
6495                 .usage = "['enable'|'disable']",
6496         },
6497         {
6498                 .name = "ps",
6499                 .handler = handle_ps_command,
6500                 .mode = COMMAND_EXEC,
6501                 .help = "list all tasks ",
6502                 .usage = " ",
6503         },
6504         {
6505                 .name = "test_mem_access",
6506                 .handler = handle_test_mem_access_command,
6507                 .mode = COMMAND_EXEC,
6508                 .help = "Test the target's memory access functions",
6509                 .usage = "size",
6510         },
6511
6512         COMMAND_REGISTRATION_DONE
6513 };
6514 static int target_register_user_commands(struct command_context *cmd_ctx)
6515 {
6516         int retval = ERROR_OK;
6517         retval = target_request_register_commands(cmd_ctx);
6518         if (retval != ERROR_OK)
6519                 return retval;
6520
6521         retval = trace_register_commands(cmd_ctx);
6522         if (retval != ERROR_OK)
6523                 return retval;
6524
6525
6526         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6527 }