git.gag.com Git - fw/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
  76 /* targets */
  77 extern struct target_type arm7tdmi_target;
  78 extern struct target_type arm720t_target;
  79 extern struct target_type arm9tdmi_target;
  80 extern struct target_type arm920t_target;
  81 extern struct target_type arm966e_target;
  82 extern struct target_type arm946e_target;
  83 extern struct target_type arm926ejs_target;
  84 extern struct target_type fa526_target;
  85 extern struct target_type feroceon_target;
  86 extern struct target_type dragonite_target;
  87 extern struct target_type xscale_target;
  88 extern struct target_type cortexm_target;
  89 extern struct target_type cortexa_target;
  90 extern struct target_type aarch64_target;
  91 extern struct target_type cortexr4_target;
  92 extern struct target_type arm11_target;
  93 extern struct target_type ls1_sap_target;
  94 extern struct target_type mips_m4k_target;
  95 extern struct target_type mips_mips64_target;
  96 extern struct target_type avr_target;
  97 extern struct target_type dsp563xx_target;
  98 extern struct target_type dsp5680xx_target;
  99 extern struct target_type testee_target;
 100 extern struct target_type avr32_ap7k_target;
 101 extern struct target_type hla_target;
 102 extern struct target_type nds32_v2_target;
 103 extern struct target_type nds32_v3_target;
 104 extern struct target_type nds32_v3m_target;
 105 extern struct target_type or1k_target;
 106 extern struct target_type quark_x10xx_target;
 107 extern struct target_type quark_d20xx_target;
 108 extern struct target_type stm8_target;
 109 extern struct target_type riscv_target;
 110 extern struct target_type mem_ap_target;
 111 extern struct target_type esirisc_target;
 112 extern struct target_type arcv2_target;
 113
 114 static struct target_type *target_types[] = {
 115         &arm7tdmi_target,
 116         &arm9tdmi_target,
 117         &arm920t_target,
 118         &arm720t_target,
 119         &arm966e_target,
 120         &arm946e_target,
 121         &arm926ejs_target,
 122         &fa526_target,
 123         &feroceon_target,
 124         &dragonite_target,
 125         &xscale_target,
 126         &cortexm_target,
 127         &cortexa_target,
 128         &cortexr4_target,
 129         &arm11_target,
 130         &ls1_sap_target,
 131         &mips_m4k_target,
 132         &avr_target,
 133         &dsp563xx_target,
 134         &dsp5680xx_target,
 135         &testee_target,
 136         &avr32_ap7k_target,
 137         &hla_target,
 138         &nds32_v2_target,
 139         &nds32_v3_target,
 140         &nds32_v3m_target,
 141         &or1k_target,
 142         &quark_x10xx_target,
 143         &quark_d20xx_target,
 144         &stm8_target,
 145         &riscv_target,
 146         &mem_ap_target,
 147         &esirisc_target,
 148         &arcv2_target,
 149         &aarch64_target,
 150         &mips_mips64_target,
 151         NULL,
 152 };
 153
 154 struct target *all_targets;
 155 static struct target_event_callback *target_event_callbacks;
 156 static struct target_timer_callback *target_timer_callbacks;
 157 static LIST_HEAD(target_reset_callback_list);
 158 static LIST_HEAD(target_trace_callback_list);
 159 static const int polling_interval = 100;
 160
 161 static const struct jim_nvp nvp_assert[] = {
 162         { .name = "assert", NVP_ASSERT },
 163         { .name = "deassert", NVP_DEASSERT },
 164         { .name = "T", NVP_ASSERT },
 165         { .name = "F", NVP_DEASSERT },
 166         { .name = "t", NVP_ASSERT },
 167         { .name = "f", NVP_DEASSERT },
 168         { .name = NULL, .value = -1 }
 169 };
 170
 171 static const struct jim_nvp nvp_error_target[] = {
 172         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 173         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 174         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 175         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 176         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 177         { .value = ERROR_TARGET_UNALIGNED_ACCESS, .name = "err-unaligned-access" },
 178         { .value = ERROR_TARGET_DATA_ABORT, .name = "err-data-abort" },
 179         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE, .name = "err-resource-not-available" },
 180         { .value = ERROR_TARGET_TRANSLATION_FAULT, .name = "err-translation-fault" },
 181         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 182         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 183         { .value = -1, .name = NULL }
 184 };
 185
 186 static const char *target_strerror_safe(int err)
 187 {
 188         const struct jim_nvp *n;
 189
 190         n = jim_nvp_value2name_simple(nvp_error_target, err);
 191         if (n->name == NULL)
 192                 return "unknown";
 193         else
 194                 return n->name;
 195 }
 196
 197 static const struct jim_nvp nvp_target_event[] = {
 198
 199         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 200         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 201         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 202         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 203         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 204         { .value = TARGET_EVENT_STEP_START, .name = "step-start" },
 205         { .value = TARGET_EVENT_STEP_END, .name = "step-end" },
 206
 207         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 208         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 209
 210         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 211         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 212         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 213         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 214         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 215         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 216         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 217         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 218
 219         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 220         { .value = TARGET_EVENT_EXAMINE_FAIL, .name = "examine-fail" },
 221         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 222
 223         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 224         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 225
 226         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 227         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 228
 229         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 230         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END,   .name = "gdb-flash-write-end"   },
 231
 232         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 233         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END,   .name = "gdb-flash-erase-end" },
 234
 235         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 236
 237         { .name = NULL, .value = -1 }
 238 };
 239
 240 static const struct jim_nvp nvp_target_state[] = {
 241         { .name = "unknown", .value = TARGET_UNKNOWN },
 242         { .name = "running", .value = TARGET_RUNNING },
 243         { .name = "halted",  .value = TARGET_HALTED },
 244         { .name = "reset",   .value = TARGET_RESET },
 245         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 246         { .name = NULL, .value = -1 },
 247 };
 248
 249 static const struct jim_nvp nvp_target_debug_reason[] = {
 250         { .name = "debug-request",             .value = DBG_REASON_DBGRQ },
 251         { .name = "breakpoint",                .value = DBG_REASON_BREAKPOINT },
 252         { .name = "watchpoint",                .value = DBG_REASON_WATCHPOINT },
 253         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 254         { .name = "single-step",               .value = DBG_REASON_SINGLESTEP },
 255         { .name = "target-not-halted",         .value = DBG_REASON_NOTHALTED  },
 256         { .name = "program-exit",              .value = DBG_REASON_EXIT },
 257         { .name = "exception-catch",           .value = DBG_REASON_EXC_CATCH },
 258         { .name = "undefined",                 .value = DBG_REASON_UNDEFINED },
 259         { .name = NULL, .value = -1 },
 260 };
 261
 262 static const struct jim_nvp nvp_target_endian[] = {
 263         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 264         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 265         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 266         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 267         { .name = NULL,     .value = -1 },
 268 };
 269
 270 static const struct jim_nvp nvp_reset_modes[] = {
 271         { .name = "unknown", .value = RESET_UNKNOWN },
 272         { .name = "run",     .value = RESET_RUN },
 273         { .name = "halt",    .value = RESET_HALT },
 274         { .name = "init",    .value = RESET_INIT },
 275         { .name = NULL,      .value = -1 },
 276 };
 277
 278 const char *debug_reason_name(struct target *t)
 279 {
 280         const char *cp;
 281
 282         cp = jim_nvp_value2name_simple(nvp_target_debug_reason,
 283                         t->debug_reason)->name;
 284         if (!cp) {
 285                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 286                 cp = "(*BUG*unknown*BUG*)";
 287         }
 288         return cp;
 289 }
 290
 291 const char *target_state_name(struct target *t)
 292 {
 293         const char *cp;
 294         cp = jim_nvp_value2name_simple(nvp_target_state, t->state)->name;
 295         if (!cp) {
 296                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 297                 cp = "(*BUG*unknown*BUG*)";
 298         }
 299
 300         if (!target_was_examined(t) && t->defer_examine)
 301                 cp = "examine deferred";
 302
 303         return cp;
 304 }
 305
 306 const char *target_event_name(enum target_event event)
 307 {
 308         const char *cp;
 309         cp = jim_nvp_value2name_simple(nvp_target_event, event)->name;
 310         if (!cp) {
 311                 LOG_ERROR("Invalid target event: %d", (int)(event));
 312                 cp = "(*BUG*unknown*BUG*)";
 313         }
 314         return cp;
 315 }
 316
 317 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 318 {
 319         const char *cp;
 320         cp = jim_nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 321         if (!cp) {
 322                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 323                 cp = "(*BUG*unknown*BUG*)";
 324         }
 325         return cp;
 326 }
 327
 328 /* determine the number of the new target */
 329 static int new_target_number(void)
 330 {
 331         struct target *t;
 332         int x;
 333
 334         /* number is 0 based */
 335         x = -1;
 336         t = all_targets;
 337         while (t) {
 338                 if (x < t->target_number)
 339                         x = t->target_number;
 340                 t = t->next;
 341         }
 342         return x + 1;
 343 }
 344
 345 static void append_to_list_all_targets(struct target *target)
 346 {
 347         struct target **t = &all_targets;
 348
 349         while (*t)
 350                 t = &((*t)->next);
 351         *t = target;
 352 }
 353
 354 /* read a uint64_t from a buffer in target memory endianness */
 355 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 356 {
 357         if (target->endianness == TARGET_LITTLE_ENDIAN)
 358                 return le_to_h_u64(buffer);
 359         else
 360                 return be_to_h_u64(buffer);
 361 }
 362
 363 /* read a uint32_t from a buffer in target memory endianness */
 364 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 365 {
 366         if (target->endianness == TARGET_LITTLE_ENDIAN)
 367                 return le_to_h_u32(buffer);
 368         else
 369                 return be_to_h_u32(buffer);
 370 }
 371
 372 /* read a uint24_t from a buffer in target memory endianness */
 373 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 374 {
 375         if (target->endianness == TARGET_LITTLE_ENDIAN)
 376                 return le_to_h_u24(buffer);
 377         else
 378                 return be_to_h_u24(buffer);
 379 }
 380
 381 /* read a uint16_t from a buffer in target memory endianness */
 382 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 383 {
 384         if (target->endianness == TARGET_LITTLE_ENDIAN)
 385                 return le_to_h_u16(buffer);
 386         else
 387                 return be_to_h_u16(buffer);
 388 }
 389
 390 /* write a uint64_t to a buffer in target memory endianness */
 391 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 392 {
 393         if (target->endianness == TARGET_LITTLE_ENDIAN)
 394                 h_u64_to_le(buffer, value);
 395         else
 396                 h_u64_to_be(buffer, value);
 397 }
 398
 399 /* write a uint32_t to a buffer in target memory endianness */
 400 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 401 {
 402         if (target->endianness == TARGET_LITTLE_ENDIAN)
 403                 h_u32_to_le(buffer, value);
 404         else
 405                 h_u32_to_be(buffer, value);
 406 }
 407
 408 /* write a uint24_t to a buffer in target memory endianness */
 409 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 410 {
 411         if (target->endianness == TARGET_LITTLE_ENDIAN)
 412                 h_u24_to_le(buffer, value);
 413         else
 414                 h_u24_to_be(buffer, value);
 415 }
 416
 417 /* write a uint16_t to a buffer in target memory endianness */
 418 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 419 {
 420         if (target->endianness == TARGET_LITTLE_ENDIAN)
 421                 h_u16_to_le(buffer, value);
 422         else
 423                 h_u16_to_be(buffer, value);
 424 }
 425
 426 /* write a uint8_t to a buffer in target memory endianness */
 427 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 428 {
 429         *buffer = value;
 430 }
 431
 432 /* write a uint64_t array to a buffer in target memory endianness */
 433 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 434 {
 435         uint32_t i;
 436         for (i = 0; i < count; i++)
 437                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 438 }
 439
 440 /* write a uint32_t array to a buffer in target memory endianness */
 441 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 442 {
 443         uint32_t i;
 444         for (i = 0; i < count; i++)
 445                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 446 }
 447
 448 /* write a uint16_t array to a buffer in target memory endianness */
 449 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 450 {
 451         uint32_t i;
 452         for (i = 0; i < count; i++)
 453                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 454 }
 455
 456 /* write a uint64_t array to a buffer in target memory endianness */
 457 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 458 {
 459         uint32_t i;
 460         for (i = 0; i < count; i++)
 461                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 462 }
 463
 464 /* write a uint32_t array to a buffer in target memory endianness */
 465 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 466 {
 467         uint32_t i;
 468         for (i = 0; i < count; i++)
 469                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 470 }
 471
 472 /* write a uint16_t array to a buffer in target memory endianness */
 473 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 474 {
 475         uint32_t i;
 476         for (i = 0; i < count; i++)
 477                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 478 }
 479
 480 /* return a pointer to a configured target; id is name or number */
 481 struct target *get_target(const char *id)
 482 {
 483         struct target *target;
 484
 485         /* try as tcltarget name */
 486         for (target = all_targets; target; target = target->next) {
 487                 if (target_name(target) == NULL)
 488                         continue;
 489                 if (strcmp(id, target_name(target)) == 0)
 490                         return target;
 491         }
 492
 493         /* It's OK to remove this fallback sometime after August 2010 or so */
 494
 495         /* no match, try as number */
 496         unsigned num;
 497         if (parse_uint(id, &num) != ERROR_OK)
 498                 return NULL;
 499
 500         for (target = all_targets; target; target = target->next) {
 501                 if (target->target_number == (int)num) {
 502                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 503                                         target_name(target), num);
 504                         return target;
 505                 }
 506         }
 507
 508         return NULL;
 509 }
 510
 511 /* returns a pointer to the n-th configured target */
 512 struct target *get_target_by_num(int num)
 513 {
 514         struct target *target = all_targets;
 515
 516         while (target) {
 517                 if (target->target_number == num)
 518                         return target;
 519                 target = target->next;
 520         }
 521
 522         return NULL;
 523 }
 524
 525 struct target *get_current_target(struct command_context *cmd_ctx)
 526 {
 527         struct target *target = get_current_target_or_null(cmd_ctx);
 528
 529         if (target == NULL) {
 530                 LOG_ERROR("BUG: current_target out of bounds");
 531                 exit(-1);
 532         }
 533
 534         return target;
 535 }
 536
 537 struct target *get_current_target_or_null(struct command_context *cmd_ctx)
 538 {
 539         return cmd_ctx->current_target_override
 540                 ? cmd_ctx->current_target_override
 541                 : cmd_ctx->current_target;
 542 }
 543
 544 int target_poll(struct target *target)
 545 {
 546         int retval;
 547
 548         /* We can't poll until after examine */
 549         if (!target_was_examined(target)) {
 550                 /* Fail silently lest we pollute the log */
 551                 return ERROR_FAIL;
 552         }
 553
 554         retval = target->type->poll(target);
 555         if (retval != ERROR_OK)
 556                 return retval;
 557
 558         if (target->halt_issued) {
 559                 if (target->state == TARGET_HALTED)
 560                         target->halt_issued = false;
 561                 else {
 562                         int64_t t = timeval_ms() - target->halt_issued_time;
 563                         if (t > DEFAULT_HALT_TIMEOUT) {
 564                                 target->halt_issued = false;
 565                                 LOG_INFO("Halt timed out, wake up GDB.");
 566                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 567                         }
 568                 }
 569         }
 570
 571         return ERROR_OK;
 572 }
 573
 574 int target_halt(struct target *target)
 575 {
 576         int retval;
 577         /* We can't poll until after examine */
 578         if (!target_was_examined(target)) {
 579                 LOG_ERROR("Target not examined yet");
 580                 return ERROR_FAIL;
 581         }
 582
 583         retval = target->type->halt(target);
 584         if (retval != ERROR_OK)
 585                 return retval;
 586
 587         target->halt_issued = true;
 588         target->halt_issued_time = timeval_ms();
 589
 590         return ERROR_OK;
 591 }
 592
 593 /**
 594  * Make the target (re)start executing using its saved execution
 595  * context (possibly with some modifications).
 596  *
 597  * @param target Which target should start executing.
 598  * @param current True to use the target's saved program counter instead
 599  *      of the address parameter
 600  * @param address Optionally used as the program counter.
 601  * @param handle_breakpoints True iff breakpoints at the resumption PC
 602  *      should be skipped.  (For example, maybe execution was stopped by
 603  *      such a breakpoint, in which case it would be counterproductive to
 604  *      let it re-trigger.
 605  * @param debug_execution False if all working areas allocated by OpenOCD
 606  *      should be released and/or restored to their original contents.
 607  *      (This would for example be true to run some downloaded "helper"
 608  *      algorithm code, which resides in one such working buffer and uses
 609  *      another for data storage.)
 610  *
 611  * @todo Resolve the ambiguity about what the "debug_execution" flag
 612  * signifies.  For example, Target implementations don't agree on how
 613  * it relates to invalidation of the register cache, or to whether
 614  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 615  * to enable breakpoints when running downloaded "helper" algorithms
 616  * (debug_execution true), since the breakpoints would be set to match
 617  * target firmware being debugged, not the helper algorithm.... and
 618  * enabling them could cause such helpers to malfunction (for example,
 619  * by overwriting data with a breakpoint instruction.  On the other
 620  * hand the infrastructure for running such helpers might use this
 621  * procedure but rely on hardware breakpoint to detect termination.)
 622  */
 623 int target_resume(struct target *target, int current, target_addr_t address,
 624                 int handle_breakpoints, int debug_execution)
 625 {
 626         int retval;
 627
 628         /* We can't poll until after examine */
 629         if (!target_was_examined(target)) {
 630                 LOG_ERROR("Target not examined yet");
 631                 return ERROR_FAIL;
 632         }
 633
 634         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 635
 636         /* note that resume *must* be asynchronous. The CPU can halt before
 637          * we poll. The CPU can even halt at the current PC as a result of
 638          * a software breakpoint being inserted by (a bug?) the application.
 639          */
 640         /*
 641          * resume() triggers the event 'resumed'. The execution of TCL commands
 642          * in the event handler causes the polling of targets. If the target has
 643          * already halted for a breakpoint, polling will run the 'halted' event
 644          * handler before the pending 'resumed' handler.
 645          * Disable polling during resume() to guarantee the execution of handlers
 646          * in the correct order.
 647          */
 648         bool save_poll = jtag_poll_get_enabled();
 649         jtag_poll_set_enabled(false);
 650         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 651         jtag_poll_set_enabled(save_poll);
 652         if (retval != ERROR_OK)
 653                 return retval;
 654
 655         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 656
 657         return retval;
 658 }
 659
 660 static int target_process_reset(struct command_invocation *cmd, enum target_reset_mode reset_mode)
 661 {
 662         char buf[100];
 663         int retval;
 664         struct jim_nvp *n;
 665         n = jim_nvp_value2name_simple(nvp_reset_modes, reset_mode);
 666         if (n->name == NULL) {
 667                 LOG_ERROR("invalid reset mode");
 668                 return ERROR_FAIL;
 669         }
 670
 671         struct target *target;
 672         for (target = all_targets; target; target = target->next)
 673                 target_call_reset_callbacks(target, reset_mode);
 674
 675         /* disable polling during reset to make reset event scripts
 676          * more predictable, i.e. dr/irscan & pathmove in events will
 677          * not have JTAG operations injected into the middle of a sequence.
 678          */
 679         bool save_poll = jtag_poll_get_enabled();
 680
 681         jtag_poll_set_enabled(false);
 682
 683         sprintf(buf, "ocd_process_reset %s", n->name);
 684         retval = Jim_Eval(cmd->ctx->interp, buf);
 685
 686         jtag_poll_set_enabled(save_poll);
 687
 688         if (retval != JIM_OK) {
 689                 Jim_MakeErrorMessage(cmd->ctx->interp);
 690                 command_print(cmd, "%s", Jim_GetString(Jim_GetResult(cmd->ctx->interp), NULL));
 691                 return ERROR_FAIL;
 692         }
 693
 694         /* We want any events to be processed before the prompt */
 695         retval = target_call_timer_callbacks_now();
 696
 697         for (target = all_targets; target; target = target->next) {
 698                 target->type->check_reset(target);
 699                 target->running_alg = false;
 700         }
 701
 702         return retval;
 703 }
 704
 705 static int identity_virt2phys(struct target *target,
 706                 target_addr_t virtual, target_addr_t *physical)
 707 {
 708         *physical = virtual;
 709         return ERROR_OK;
 710 }
 711
 712 static int no_mmu(struct target *target, int *enabled)
 713 {
 714         *enabled = 0;
 715         return ERROR_OK;
 716 }
 717
 718 static int default_examine(struct target *target)
 719 {
 720         target_set_examined(target);
 721         return ERROR_OK;
 722 }
 723
 724 /* no check by default */
 725 static int default_check_reset(struct target *target)
 726 {
 727         return ERROR_OK;
 728 }
 729
 730 /* Equivalent Tcl code arp_examine_one is in src/target/startup.tcl
 731  * Keep in sync */
 732 int target_examine_one(struct target *target)
 733 {
 734         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 735
 736         int retval = target->type->examine(target);
 737         if (retval != ERROR_OK) {
 738                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_FAIL);
 739                 return retval;
 740         }
 741
 742         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 743
 744         return ERROR_OK;
 745 }
 746
 747 static int jtag_enable_callback(enum jtag_event event, void *priv)
 748 {
 749         struct target *target = priv;
 750
 751         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 752                 return ERROR_OK;
 753
 754         jtag_unregister_event_callback(jtag_enable_callback, target);
 755
 756         return target_examine_one(target);
 757 }
 758
 759 /* Targets that correctly implement init + examine, i.e.
 760  * no communication with target during init:
 761  *
 762  * XScale
 763  */
 764 int target_examine(void)
 765 {
 766         int retval = ERROR_OK;
 767         struct target *target;
 768
 769         for (target = all_targets; target; target = target->next) {
 770                 /* defer examination, but don't skip it */
 771                 if (!target->tap->enabled) {
 772                         jtag_register_event_callback(jtag_enable_callback,
 773                                         target);
 774                         continue;
 775                 }
 776
 777                 if (target->defer_examine)
 778                         continue;
 779
 780                 int retval2 = target_examine_one(target);
 781                 if (retval2 != ERROR_OK) {
 782                         LOG_WARNING("target %s examination failed", target_name(target));
 783                         retval = retval2;
 784                 }
 785         }
 786         return retval;
 787 }
 788
 789 const char *target_type_name(struct target *target)
 790 {
 791         return target->type->name;
 792 }
 793
 794 static int target_soft_reset_halt(struct target *target)
 795 {
 796         if (!target_was_examined(target)) {
 797                 LOG_ERROR("Target not examined yet");
 798                 return ERROR_FAIL;
 799         }
 800         if (!target->type->soft_reset_halt) {
 801                 LOG_ERROR("Target %s does not support soft_reset_halt",
 802                                 target_name(target));
 803                 return ERROR_FAIL;
 804         }
 805         return target->type->soft_reset_halt(target);
 806 }
 807
 808 /**
 809  * Downloads a target-specific native code algorithm to the target,
 810  * and executes it.  * Note that some targets may need to set up, enable,
 811  * and tear down a breakpoint (hard or * soft) to detect algorithm
 812  * termination, while others may support  lower overhead schemes where
 813  * soft breakpoints embedded in the algorithm automatically terminate the
 814  * algorithm.
 815  *
 816  * @param target used to run the algorithm
 817  * @param num_mem_params
 818  * @param mem_params
 819  * @param num_reg_params
 820  * @param reg_param
 821  * @param entry_point
 822  * @param exit_point
 823  * @param timeout_ms
 824  * @param arch_info target-specific description of the algorithm.
 825  */
 826 int target_run_algorithm(struct target *target,
 827                 int num_mem_params, struct mem_param *mem_params,
 828                 int num_reg_params, struct reg_param *reg_param,
 829                 uint32_t entry_point, uint32_t exit_point,
 830                 int timeout_ms, void *arch_info)
 831 {
 832         int retval = ERROR_FAIL;
 833
 834         if (!target_was_examined(target)) {
 835                 LOG_ERROR("Target not examined yet");
 836                 goto done;
 837         }
 838         if (!target->type->run_algorithm) {
 839                 LOG_ERROR("Target type '%s' does not support %s",
 840                                 target_type_name(target), __func__);
 841                 goto done;
 842         }
 843
 844         target->running_alg = true;
 845         retval = target->type->run_algorithm(target,
 846                         num_mem_params, mem_params,
 847                         num_reg_params, reg_param,
 848                         entry_point, exit_point, timeout_ms, arch_info);
 849         target->running_alg = false;
 850
 851 done:
 852         return retval;
 853 }
 854
 855 /**
 856  * Executes a target-specific native code algorithm and leaves it running.
 857  *
 858  * @param target used to run the algorithm
 859  * @param num_mem_params
 860  * @param mem_params
 861  * @param num_reg_params
 862  * @param reg_params
 863  * @param entry_point
 864  * @param exit_point
 865  * @param arch_info target-specific description of the algorithm.
 866  */
 867 int target_start_algorithm(struct target *target,
 868                 int num_mem_params, struct mem_param *mem_params,
 869                 int num_reg_params, struct reg_param *reg_params,
 870                 uint32_t entry_point, uint32_t exit_point,
 871                 void *arch_info)
 872 {
 873         int retval = ERROR_FAIL;
 874
 875         if (!target_was_examined(target)) {
 876                 LOG_ERROR("Target not examined yet");
 877                 goto done;
 878         }
 879         if (!target->type->start_algorithm) {
 880                 LOG_ERROR("Target type '%s' does not support %s",
 881                                 target_type_name(target), __func__);
 882                 goto done;
 883         }
 884         if (target->running_alg) {
 885                 LOG_ERROR("Target is already running an algorithm");
 886                 goto done;
 887         }
 888
 889         target->running_alg = true;
 890         retval = target->type->start_algorithm(target,
 891                         num_mem_params, mem_params,
 892                         num_reg_params, reg_params,
 893                         entry_point, exit_point, arch_info);
 894
 895 done:
 896         return retval;
 897 }
 898
 899 /**
 900  * Waits for an algorithm started with target_start_algorithm() to complete.
 901  *
 902  * @param target used to run the algorithm
 903  * @param num_mem_params
 904  * @param mem_params
 905  * @param num_reg_params
 906  * @param reg_params
 907  * @param exit_point
 908  * @param timeout_ms
 909  * @param arch_info target-specific description of the algorithm.
 910  */
 911 int target_wait_algorithm(struct target *target,
 912                 int num_mem_params, struct mem_param *mem_params,
 913                 int num_reg_params, struct reg_param *reg_params,
 914                 uint32_t exit_point, int timeout_ms,
 915                 void *arch_info)
 916 {
 917         int retval = ERROR_FAIL;
 918
 919         if (!target->type->wait_algorithm) {
 920                 LOG_ERROR("Target type '%s' does not support %s",
 921                                 target_type_name(target), __func__);
 922                 goto done;
 923         }
 924         if (!target->running_alg) {
 925                 LOG_ERROR("Target is not running an algorithm");
 926                 goto done;
 927         }
 928
 929         retval = target->type->wait_algorithm(target,
 930                         num_mem_params, mem_params,
 931                         num_reg_params, reg_params,
 932                         exit_point, timeout_ms, arch_info);
 933         if (retval != ERROR_TARGET_TIMEOUT)
 934                 target->running_alg = false;
 935
 936 done:
 937         return retval;
 938 }
 939
 940 /**
 941  * Streams data to a circular buffer on target intended for consumption by code
 942  * running asynchronously on target.
 943  *
 944  * This is intended for applications where target-specific native code runs
 945  * on the target, receives data from the circular buffer, does something with
 946  * it (most likely writing it to a flash memory), and advances the circular
 947  * buffer pointer.
 948  *
 949  * This assumes that the helper algorithm has already been loaded to the target,
 950  * but has not been started yet. Given memory and register parameters are passed
 951  * to the algorithm.
 952  *
 953  * The buffer is defined by (buffer_start, buffer_size) arguments and has the
 954  * following format:
 955  *
 956  *     [buffer_start + 0, buffer_start + 4):
 957  *         Write Pointer address (aka head). Written and updated by this
 958  *         routine when new data is written to the circular buffer.
 959  *     [buffer_start + 4, buffer_start + 8):
 960  *         Read Pointer address (aka tail). Updated by code running on the
 961  *         target after it consumes data.
 962  *     [buffer_start + 8, buffer_start + buffer_size):
 963  *         Circular buffer contents.
 964  *
 965  * See contrib/loaders/flash/stm32f1x.S for an example.
 966  *
 967  * @param target used to run the algorithm
 968  * @param buffer address on the host where data to be sent is located
 969  * @param count number of blocks to send
 970  * @param block_size size in bytes of each block
 971  * @param num_mem_params count of memory-based params to pass to algorithm
 972  * @param mem_params memory-based params to pass to algorithm
 973  * @param num_reg_params count of register-based params to pass to algorithm
 974  * @param reg_params memory-based params to pass to algorithm
 975  * @param buffer_start address on the target of the circular buffer structure
 976  * @param buffer_size size of the circular buffer structure
 977  * @param entry_point address on the target to execute to start the algorithm
 978  * @param exit_point address at which to set a breakpoint to catch the
 979  *     end of the algorithm; can be 0 if target triggers a breakpoint itself
 980  * @param arch_info
 981  */
 982
 983 int target_run_flash_async_algorithm(struct target *target,
 984                 const uint8_t *buffer, uint32_t count, int block_size,
 985                 int num_mem_params, struct mem_param *mem_params,
 986                 int num_reg_params, struct reg_param *reg_params,
 987                 uint32_t buffer_start, uint32_t buffer_size,
 988                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 989 {
 990         int retval;
 991         int timeout = 0;
 992
 993         const uint8_t *buffer_orig = buffer;
 994
 995         /* Set up working area. First word is write pointer, second word is read pointer,
 996          * rest is fifo data area. */
 997         uint32_t wp_addr = buffer_start;
 998         uint32_t rp_addr = buffer_start + 4;
 999         uint32_t fifo_start_addr = buffer_start + 8;
1000         uint32_t fifo_end_addr = buffer_start + buffer_size;
1001
1002         uint32_t wp = fifo_start_addr;
1003         uint32_t rp = fifo_start_addr;
1004
1005         /* validate block_size is 2^n */
1006         assert(!block_size || !(block_size & (block_size - 1)));
1007
1008         retval = target_write_u32(target, wp_addr, wp);
1009         if (retval != ERROR_OK)
1010                 return retval;
1011         retval = target_write_u32(target, rp_addr, rp);
1012         if (retval != ERROR_OK)
1013                 return retval;
1014
1015         /* Start up algorithm on target and let it idle while writing the first chunk */
1016         retval = target_start_algorithm(target, num_mem_params, mem_params,
1017                         num_reg_params, reg_params,
1018                         entry_point,
1019                         exit_point,
1020                         arch_info);
1021
1022         if (retval != ERROR_OK) {
1023                 LOG_ERROR("error starting target flash write algorithm");
1024                 return retval;
1025         }
1026
1027         while (count > 0) {
1028
1029                 retval = target_read_u32(target, rp_addr, &rp);
1030                 if (retval != ERROR_OK) {
1031                         LOG_ERROR("failed to get read pointer");
1032                         break;
1033                 }
1034
1035                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
1036                         (size_t) (buffer - buffer_orig), count, wp, rp);
1037
1038                 if (rp == 0) {
1039                         LOG_ERROR("flash write algorithm aborted by target");
1040                         retval = ERROR_FLASH_OPERATION_FAILED;
1041                         break;
1042                 }
1043
1044                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
1045                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
1046                         break;
1047                 }
1048
1049                 /* Count the number of bytes available in the fifo without
1050                  * crossing the wrap around. Make sure to not fill it completely,
1051                  * because that would make wp == rp and that's the empty condition. */
1052                 uint32_t thisrun_bytes;
1053                 if (rp > wp)
1054                         thisrun_bytes = rp - wp - block_size;
1055                 else if (rp > fifo_start_addr)
1056                         thisrun_bytes = fifo_end_addr - wp;
1057                 else
1058                         thisrun_bytes = fifo_end_addr - wp - block_size;
1059
1060                 if (thisrun_bytes == 0) {
1061                         /* Throttle polling a bit if transfer is (much) faster than flash
1062                          * programming. The exact delay shouldn't matter as long as it's
1063                          * less than buffer size / flash speed. This is very unlikely to
1064                          * run when using high latency connections such as USB. */
1065                         alive_sleep(2);
1066
1067                         /* to stop an infinite loop on some targets check and increment a timeout
1068                          * this issue was observed on a stellaris using the new ICDI interface */
1069                         if (timeout++ >= 2500) {
1070                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1071                                 return ERROR_FLASH_OPERATION_FAILED;
1072                         }
1073                         continue;
1074                 }
1075
1076                 /* reset our timeout */
1077                 timeout = 0;
1078
1079                 /* Limit to the amount of data we actually want to write */
1080                 if (thisrun_bytes > count * block_size)
1081                         thisrun_bytes = count * block_size;
1082
1083                 /* Force end of large blocks to be word aligned */
1084                 if (thisrun_bytes >= 16)
1085                         thisrun_bytes -= (rp + thisrun_bytes) & 0x03;
1086
1087                 /* Write data to fifo */
1088                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1089                 if (retval != ERROR_OK)
1090                         break;
1091
1092                 /* Update counters and wrap write pointer */
1093                 buffer += thisrun_bytes;
1094                 count -= thisrun_bytes / block_size;
1095                 wp += thisrun_bytes;
1096                 if (wp >= fifo_end_addr)
1097                         wp = fifo_start_addr;
1098
1099                 /* Store updated write pointer to target */
1100                 retval = target_write_u32(target, wp_addr, wp);
1101                 if (retval != ERROR_OK)
1102                         break;
1103
1104                 /* Avoid GDB timeouts */
1105                 keep_alive();
1106         }
1107
1108         if (retval != ERROR_OK) {
1109                 /* abort flash write algorithm on target */
1110                 target_write_u32(target, wp_addr, 0);
1111         }
1112
1113         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1114                         num_reg_params, reg_params,
1115                         exit_point,
1116                         10000,
1117                         arch_info);
1118
1119         if (retval2 != ERROR_OK) {
1120                 LOG_ERROR("error waiting for target flash write algorithm");
1121                 retval = retval2;
1122         }
1123
1124         if (retval == ERROR_OK) {
1125                 /* check if algorithm set rp = 0 after fifo writer loop finished */
1126                 retval = target_read_u32(target, rp_addr, &rp);
1127                 if (retval == ERROR_OK && rp == 0) {
1128                         LOG_ERROR("flash write algorithm aborted by target");
1129                         retval = ERROR_FLASH_OPERATION_FAILED;
1130                 }
1131         }
1132
1133         return retval;
1134 }
1135
1136 int target_run_read_async_algorithm(struct target *target,
1137                 uint8_t *buffer, uint32_t count, int block_size,
1138                 int num_mem_params, struct mem_param *mem_params,
1139                 int num_reg_params, struct reg_param *reg_params,
1140                 uint32_t buffer_start, uint32_t buffer_size,
1141                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
1142 {
1143         int retval;
1144         int timeout = 0;
1145
1146         const uint8_t *buffer_orig = buffer;
1147
1148         /* Set up working area. First word is write pointer, second word is read pointer,
1149          * rest is fifo data area. */
1150         uint32_t wp_addr = buffer_start;
1151         uint32_t rp_addr = buffer_start + 4;
1152         uint32_t fifo_start_addr = buffer_start + 8;
1153         uint32_t fifo_end_addr = buffer_start + buffer_size;
1154
1155         uint32_t wp = fifo_start_addr;
1156         uint32_t rp = fifo_start_addr;
1157
1158         /* validate block_size is 2^n */
1159         assert(!block_size || !(block_size & (block_size - 1)));
1160
1161         retval = target_write_u32(target, wp_addr, wp);
1162         if (retval != ERROR_OK)
1163                 return retval;
1164         retval = target_write_u32(target, rp_addr, rp);
1165         if (retval != ERROR_OK)
1166                 return retval;
1167
1168         /* Start up algorithm on target */
1169         retval = target_start_algorithm(target, num_mem_params, mem_params,
1170                         num_reg_params, reg_params,
1171                         entry_point,
1172                         exit_point,
1173                         arch_info);
1174
1175         if (retval != ERROR_OK) {
1176                 LOG_ERROR("error starting target flash read algorithm");
1177                 return retval;
1178         }
1179
1180         while (count > 0) {
1181                 retval = target_read_u32(target, wp_addr, &wp);
1182                 if (retval != ERROR_OK) {
1183                         LOG_ERROR("failed to get write pointer");
1184                         break;
1185                 }
1186
1187                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
1188                         (size_t)(buffer - buffer_orig), count, wp, rp);
1189
1190                 if (wp == 0) {
1191                         LOG_ERROR("flash read algorithm aborted by target");
1192                         retval = ERROR_FLASH_OPERATION_FAILED;
1193                         break;
1194                 }
1195
1196                 if (((wp - fifo_start_addr) & (block_size - 1)) || wp < fifo_start_addr || wp >= fifo_end_addr) {
1197                         LOG_ERROR("corrupted fifo write pointer 0x%" PRIx32, wp);
1198                         break;
1199                 }
1200
1201                 /* Count the number of bytes available in the fifo without
1202                  * crossing the wrap around. */
1203                 uint32_t thisrun_bytes;
1204                 if (wp >= rp)
1205                         thisrun_bytes = wp - rp;
1206                 else
1207                         thisrun_bytes = fifo_end_addr - rp;
1208
1209                 if (thisrun_bytes == 0) {
1210                         /* Throttle polling a bit if transfer is (much) faster than flash
1211                          * reading. The exact delay shouldn't matter as long as it's
1212                          * less than buffer size / flash speed. This is very unlikely to
1213                          * run when using high latency connections such as USB. */
1214                         alive_sleep(2);
1215
1216                         /* to stop an infinite loop on some targets check and increment a timeout
1217                          * this issue was observed on a stellaris using the new ICDI interface */
1218                         if (timeout++ >= 2500) {
1219                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1220                                 return ERROR_FLASH_OPERATION_FAILED;
1221                         }
1222                         continue;
1223                 }
1224
1225                 /* Reset our timeout */
1226                 timeout = 0;
1227
1228                 /* Limit to the amount of data we actually want to read */
1229                 if (thisrun_bytes > count * block_size)
1230                         thisrun_bytes = count * block_size;
1231
1232                 /* Force end of large blocks to be word aligned */
1233                 if (thisrun_bytes >= 16)
1234                         thisrun_bytes -= (rp + thisrun_bytes) & 0x03;
1235
1236                 /* Read data from fifo */
1237                 retval = target_read_buffer(target, rp, thisrun_bytes, buffer);
1238                 if (retval != ERROR_OK)
1239                         break;
1240
1241                 /* Update counters and wrap write pointer */
1242                 buffer += thisrun_bytes;
1243                 count -= thisrun_bytes / block_size;
1244                 rp += thisrun_bytes;
1245                 if (rp >= fifo_end_addr)
1246                         rp = fifo_start_addr;
1247
1248                 /* Store updated write pointer to target */
1249                 retval = target_write_u32(target, rp_addr, rp);
1250                 if (retval != ERROR_OK)
1251                         break;
1252
1253                 /* Avoid GDB timeouts */
1254                 keep_alive();
1255
1256         }
1257
1258         if (retval != ERROR_OK) {
1259                 /* abort flash write algorithm on target */
1260                 target_write_u32(target, rp_addr, 0);
1261         }
1262
1263         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1264                         num_reg_params, reg_params,
1265                         exit_point,
1266                         10000,
1267                         arch_info);
1268
1269         if (retval2 != ERROR_OK) {
1270                 LOG_ERROR("error waiting for target flash write algorithm");
1271                 retval = retval2;
1272         }
1273
1274         if (retval == ERROR_OK) {
1275                 /* check if algorithm set wp = 0 after fifo writer loop finished */
1276                 retval = target_read_u32(target, wp_addr, &wp);
1277                 if (retval == ERROR_OK && wp == 0) {
1278                         LOG_ERROR("flash read algorithm aborted by target");
1279                         retval = ERROR_FLASH_OPERATION_FAILED;
1280                 }
1281         }
1282
1283         return retval;
1284 }
1285
1286 int target_read_memory(struct target *target,
1287                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1288 {
1289         if (!target_was_examined(target)) {
1290                 LOG_ERROR("Target not examined yet");
1291                 return ERROR_FAIL;
1292         }
1293         if (!target->type->read_memory) {
1294                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1295                 return ERROR_FAIL;
1296         }
1297         return target->type->read_memory(target, address, size, count, buffer);
1298 }
1299
1300 int target_read_phys_memory(struct target *target,
1301                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1302 {
1303         if (!target_was_examined(target)) {
1304                 LOG_ERROR("Target not examined yet");
1305                 return ERROR_FAIL;
1306         }
1307         if (!target->type->read_phys_memory) {
1308                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1309                 return ERROR_FAIL;
1310         }
1311         return target->type->read_phys_memory(target, address, size, count, buffer);
1312 }
1313
1314 int target_write_memory(struct target *target,
1315                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1316 {
1317         if (!target_was_examined(target)) {
1318                 LOG_ERROR("Target not examined yet");
1319                 return ERROR_FAIL;
1320         }
1321         if (!target->type->write_memory) {
1322                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1323                 return ERROR_FAIL;
1324         }
1325         return target->type->write_memory(target, address, size, count, buffer);
1326 }
1327
1328 int target_write_phys_memory(struct target *target,
1329                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1330 {
1331         if (!target_was_examined(target)) {
1332                 LOG_ERROR("Target not examined yet");
1333                 return ERROR_FAIL;
1334         }
1335         if (!target->type->write_phys_memory) {
1336                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1337                 return ERROR_FAIL;
1338         }
1339         return target->type->write_phys_memory(target, address, size, count, buffer);
1340 }
1341
1342 int target_add_breakpoint(struct target *target,
1343                 struct breakpoint *breakpoint)
1344 {
1345         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1346                 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1347                 return ERROR_TARGET_NOT_HALTED;
1348         }
1349         return target->type->add_breakpoint(target, breakpoint);
1350 }
1351
1352 int target_add_context_breakpoint(struct target *target,
1353                 struct breakpoint *breakpoint)
1354 {
1355         if (target->state != TARGET_HALTED) {
1356                 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1357                 return ERROR_TARGET_NOT_HALTED;
1358         }
1359         return target->type->add_context_breakpoint(target, breakpoint);
1360 }
1361
1362 int target_add_hybrid_breakpoint(struct target *target,
1363                 struct breakpoint *breakpoint)
1364 {
1365         if (target->state != TARGET_HALTED) {
1366                 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1367                 return ERROR_TARGET_NOT_HALTED;
1368         }
1369         return target->type->add_hybrid_breakpoint(target, breakpoint);
1370 }
1371
1372 int target_remove_breakpoint(struct target *target,
1373                 struct breakpoint *breakpoint)
1374 {
1375         return target->type->remove_breakpoint(target, breakpoint);
1376 }
1377
1378 int target_add_watchpoint(struct target *target,
1379                 struct watchpoint *watchpoint)
1380 {
1381         if (target->state != TARGET_HALTED) {
1382                 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1383                 return ERROR_TARGET_NOT_HALTED;
1384         }
1385         return target->type->add_watchpoint(target, watchpoint);
1386 }
1387 int target_remove_watchpoint(struct target *target,
1388                 struct watchpoint *watchpoint)
1389 {
1390         return target->type->remove_watchpoint(target, watchpoint);
1391 }
1392 int target_hit_watchpoint(struct target *target,
1393                 struct watchpoint **hit_watchpoint)
1394 {
1395         if (target->state != TARGET_HALTED) {
1396                 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1397                 return ERROR_TARGET_NOT_HALTED;
1398         }
1399
1400         if (target->type->hit_watchpoint == NULL) {
1401                 /* For backward compatible, if hit_watchpoint is not implemented,
1402                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1403                  * information. */
1404                 return ERROR_FAIL;
1405         }
1406
1407         return target->type->hit_watchpoint(target, hit_watchpoint);
1408 }
1409
1410 const char *target_get_gdb_arch(struct target *target)
1411 {
1412         if (target->type->get_gdb_arch == NULL)
1413                 return NULL;
1414         return target->type->get_gdb_arch(target);
1415 }
1416
1417 int target_get_gdb_reg_list(struct target *target,
1418                 struct reg **reg_list[], int *reg_list_size,
1419                 enum target_register_class reg_class)
1420 {
1421         int result = ERROR_FAIL;
1422
1423         if (!target_was_examined(target)) {
1424                 LOG_ERROR("Target not examined yet");
1425                 goto done;
1426         }
1427
1428         result = target->type->get_gdb_reg_list(target, reg_list,
1429                         reg_list_size, reg_class);
1430
1431 done:
1432         if (result != ERROR_OK) {
1433                 *reg_list = NULL;
1434                 *reg_list_size = 0;
1435         }
1436         return result;
1437 }
1438
1439 int target_get_gdb_reg_list_noread(struct target *target,
1440                 struct reg **reg_list[], int *reg_list_size,
1441                 enum target_register_class reg_class)
1442 {
1443         if (target->type->get_gdb_reg_list_noread &&
1444                         target->type->get_gdb_reg_list_noread(target, reg_list,
1445                                 reg_list_size, reg_class) == ERROR_OK)
1446                 return ERROR_OK;
1447         return target_get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1448 }
1449
1450 bool target_supports_gdb_connection(struct target *target)
1451 {
1452         /*
1453          * exclude all the targets that don't provide get_gdb_reg_list
1454          * or that have explicit gdb_max_connection == 0
1455          */
1456         return !!target->type->get_gdb_reg_list && !!target->gdb_max_connections;
1457 }
1458
1459 int target_step(struct target *target,
1460                 int current, target_addr_t address, int handle_breakpoints)
1461 {
1462         int retval;
1463
1464         target_call_event_callbacks(target, TARGET_EVENT_STEP_START);
1465
1466         retval = target->type->step(target, current, address, handle_breakpoints);
1467         if (retval != ERROR_OK)
1468                 return retval;
1469
1470         target_call_event_callbacks(target, TARGET_EVENT_STEP_END);
1471
1472         return retval;
1473 }
1474
1475 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1476 {
1477         if (target->state != TARGET_HALTED) {
1478                 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1479                 return ERROR_TARGET_NOT_HALTED;
1480         }
1481         return target->type->get_gdb_fileio_info(target, fileio_info);
1482 }
1483
1484 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1485 {
1486         if (target->state != TARGET_HALTED) {
1487                 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1488                 return ERROR_TARGET_NOT_HALTED;
1489         }
1490         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1491 }
1492
1493 target_addr_t target_address_max(struct target *target)
1494 {
1495         unsigned bits = target_address_bits(target);
1496         if (sizeof(target_addr_t) * 8 == bits)
1497                 return (target_addr_t) -1;
1498         else
1499                 return (((target_addr_t) 1) << bits) - 1;
1500 }
1501
1502 unsigned target_address_bits(struct target *target)
1503 {
1504         if (target->type->address_bits)
1505                 return target->type->address_bits(target);
1506         return 32;
1507 }
1508
1509 unsigned int target_data_bits(struct target *target)
1510 {
1511         if (target->type->data_bits)
1512                 return target->type->data_bits(target);
1513         return 32;
1514 }
1515
1516 static int target_profiling(struct target *target, uint32_t *samples,
1517                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1518 {
1519         return target->type->profiling(target, samples, max_num_samples,
1520                         num_samples, seconds);
1521 }
1522
1523 /**
1524  * Reset the @c examined flag for the given target.
1525  * Pure paranoia -- targets are zeroed on allocation.
1526  */
1527 static void target_reset_examined(struct target *target)
1528 {
1529         target->examined = false;
1530 }
1531
1532 static int handle_target(void *priv);
1533
1534 static int target_init_one(struct command_context *cmd_ctx,
1535                 struct target *target)
1536 {
1537         target_reset_examined(target);
1538
1539         struct target_type *type = target->type;
1540         if (type->examine == NULL)
1541                 type->examine = default_examine;
1542
1543         if (type->check_reset == NULL)
1544                 type->check_reset = default_check_reset;
1545
1546         assert(type->init_target != NULL);
1547
1548         int retval = type->init_target(cmd_ctx, target);
1549         if (ERROR_OK != retval) {
1550                 LOG_ERROR("target '%s' init failed", target_name(target));
1551                 return retval;
1552         }
1553
1554         /* Sanity-check MMU support ... stub in what we must, to help
1555          * implement it in stages, but warn if we need to do so.
1556          */
1557         if (type->mmu) {
1558                 if (type->virt2phys == NULL) {
1559                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1560                         type->virt2phys = identity_virt2phys;
1561                 }
1562         } else {
1563                 /* Make sure no-MMU targets all behave the same:  make no
1564                  * distinction between physical and virtual addresses, and
1565                  * ensure that virt2phys() is always an identity mapping.
1566                  */
1567                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1568                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1569
1570                 type->mmu = no_mmu;
1571                 type->write_phys_memory = type->write_memory;
1572                 type->read_phys_memory = type->read_memory;
1573                 type->virt2phys = identity_virt2phys;
1574         }
1575
1576         if (target->type->read_buffer == NULL)
1577                 target->type->read_buffer = target_read_buffer_default;
1578
1579         if (target->type->write_buffer == NULL)
1580                 target->type->write_buffer = target_write_buffer_default;
1581
1582         if (target->type->get_gdb_fileio_info == NULL)
1583                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1584
1585         if (target->type->gdb_fileio_end == NULL)
1586                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1587
1588         if (target->type->profiling == NULL)
1589                 target->type->profiling = target_profiling_default;
1590
1591         return ERROR_OK;
1592 }
1593
1594 static int target_init(struct command_context *cmd_ctx)
1595 {
1596         struct target *target;
1597         int retval;
1598
1599         for (target = all_targets; target; target = target->next) {
1600                 retval = target_init_one(cmd_ctx, target);
1601                 if (ERROR_OK != retval)
1602                         return retval;
1603         }
1604
1605         if (!all_targets)
1606                 return ERROR_OK;
1607
1608         retval = target_register_user_commands(cmd_ctx);
1609         if (ERROR_OK != retval)
1610                 return retval;
1611
1612         retval = target_register_timer_callback(&handle_target,
1613                         polling_interval, TARGET_TIMER_TYPE_PERIODIC, cmd_ctx->interp);
1614         if (ERROR_OK != retval)
1615                 return retval;
1616
1617         return ERROR_OK;
1618 }
1619
1620 COMMAND_HANDLER(handle_target_init_command)
1621 {
1622         int retval;
1623
1624         if (CMD_ARGC != 0)
1625                 return ERROR_COMMAND_SYNTAX_ERROR;
1626
1627         static bool target_initialized;
1628         if (target_initialized) {
1629                 LOG_INFO("'target init' has already been called");
1630                 return ERROR_OK;
1631         }
1632         target_initialized = true;
1633
1634         retval = command_run_line(CMD_CTX, "init_targets");
1635         if (ERROR_OK != retval)
1636                 return retval;
1637
1638         retval = command_run_line(CMD_CTX, "init_target_events");
1639         if (ERROR_OK != retval)
1640                 return retval;
1641
1642         retval = command_run_line(CMD_CTX, "init_board");
1643         if (ERROR_OK != retval)
1644                 return retval;
1645
1646         LOG_DEBUG("Initializing targets...");
1647         return target_init(CMD_CTX);
1648 }
1649
1650 int target_register_event_callback(int (*callback)(struct target *target,
1651                 enum target_event event, void *priv), void *priv)
1652 {
1653         struct target_event_callback **callbacks_p = &target_event_callbacks;
1654
1655         if (callback == NULL)
1656                 return ERROR_COMMAND_SYNTAX_ERROR;
1657
1658         if (*callbacks_p) {
1659                 while ((*callbacks_p)->next)
1660                         callbacks_p = &((*callbacks_p)->next);
1661                 callbacks_p = &((*callbacks_p)->next);
1662         }
1663
1664         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1665         (*callbacks_p)->callback = callback;
1666         (*callbacks_p)->priv = priv;
1667         (*callbacks_p)->next = NULL;
1668
1669         return ERROR_OK;
1670 }
1671
1672 int target_register_reset_callback(int (*callback)(struct target *target,
1673                 enum target_reset_mode reset_mode, void *priv), void *priv)
1674 {
1675         struct target_reset_callback *entry;
1676
1677         if (callback == NULL)
1678                 return ERROR_COMMAND_SYNTAX_ERROR;
1679
1680         entry = malloc(sizeof(struct target_reset_callback));
1681         if (entry == NULL) {
1682                 LOG_ERROR("error allocating buffer for reset callback entry");
1683                 return ERROR_COMMAND_SYNTAX_ERROR;
1684         }
1685
1686         entry->callback = callback;
1687         entry->priv = priv;
1688         list_add(&entry->list, &target_reset_callback_list);
1689
1690
1691         return ERROR_OK;
1692 }
1693
1694 int target_register_trace_callback(int (*callback)(struct target *target,
1695                 size_t len, uint8_t *data, void *priv), void *priv)
1696 {
1697         struct target_trace_callback *entry;
1698
1699         if (callback == NULL)
1700                 return ERROR_COMMAND_SYNTAX_ERROR;
1701
1702         entry = malloc(sizeof(struct target_trace_callback));
1703         if (entry == NULL) {
1704                 LOG_ERROR("error allocating buffer for trace callback entry");
1705                 return ERROR_COMMAND_SYNTAX_ERROR;
1706         }
1707
1708         entry->callback = callback;
1709         entry->priv = priv;
1710         list_add(&entry->list, &target_trace_callback_list);
1711
1712
1713         return ERROR_OK;
1714 }
1715
1716 int target_register_timer_callback(int (*callback)(void *priv),
1717                 unsigned int time_ms, enum target_timer_type type, void *priv)
1718 {
1719         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1720
1721         if (callback == NULL)
1722                 return ERROR_COMMAND_SYNTAX_ERROR;
1723
1724         if (*callbacks_p) {
1725                 while ((*callbacks_p)->next)
1726                         callbacks_p = &((*callbacks_p)->next);
1727                 callbacks_p = &((*callbacks_p)->next);
1728         }
1729
1730         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1731         (*callbacks_p)->callback = callback;
1732         (*callbacks_p)->type = type;
1733         (*callbacks_p)->time_ms = time_ms;
1734         (*callbacks_p)->removed = false;
1735
1736         gettimeofday(&(*callbacks_p)->when, NULL);
1737         timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1738
1739         (*callbacks_p)->priv = priv;
1740         (*callbacks_p)->next = NULL;
1741
1742         return ERROR_OK;
1743 }
1744
1745 int target_unregister_event_callback(int (*callback)(struct target *target,
1746                 enum target_event event, void *priv), void *priv)
1747 {
1748         struct target_event_callback **p = &target_event_callbacks;
1749         struct target_event_callback *c = target_event_callbacks;
1750
1751         if (callback == NULL)
1752                 return ERROR_COMMAND_SYNTAX_ERROR;
1753
1754         while (c) {
1755                 struct target_event_callback *next = c->next;
1756                 if ((c->callback == callback) && (c->priv == priv)) {
1757                         *p = next;
1758                         free(c);
1759                         return ERROR_OK;
1760                 } else
1761                         p = &(c->next);
1762                 c = next;
1763         }
1764
1765         return ERROR_OK;
1766 }
1767
1768 int target_unregister_reset_callback(int (*callback)(struct target *target,
1769                 enum target_reset_mode reset_mode, void *priv), void *priv)
1770 {
1771         struct target_reset_callback *entry;
1772
1773         if (callback == NULL)
1774                 return ERROR_COMMAND_SYNTAX_ERROR;
1775
1776         list_for_each_entry(entry, &target_reset_callback_list, list) {
1777                 if (entry->callback == callback && entry->priv == priv) {
1778                         list_del(&entry->list);
1779                         free(entry);
1780                         break;
1781                 }
1782         }
1783
1784         return ERROR_OK;
1785 }
1786
1787 int target_unregister_trace_callback(int (*callback)(struct target *target,
1788                 size_t len, uint8_t *data, void *priv), void *priv)
1789 {
1790         struct target_trace_callback *entry;
1791
1792         if (callback == NULL)
1793                 return ERROR_COMMAND_SYNTAX_ERROR;
1794
1795         list_for_each_entry(entry, &target_trace_callback_list, list) {
1796                 if (entry->callback == callback && entry->priv == priv) {
1797                         list_del(&entry->list);
1798                         free(entry);
1799                         break;
1800                 }
1801         }
1802
1803         return ERROR_OK;
1804 }
1805
1806 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1807 {
1808         if (callback == NULL)
1809                 return ERROR_COMMAND_SYNTAX_ERROR;
1810
1811         for (struct target_timer_callback *c = target_timer_callbacks;
1812              c; c = c->next) {
1813                 if ((c->callback == callback) && (c->priv == priv)) {
1814                         c->removed = true;
1815                         return ERROR_OK;
1816                 }
1817         }
1818
1819         return ERROR_FAIL;
1820 }
1821
1822 int target_call_event_callbacks(struct target *target, enum target_event event)
1823 {
1824         struct target_event_callback *callback = target_event_callbacks;
1825         struct target_event_callback *next_callback;
1826
1827         if (event == TARGET_EVENT_HALTED) {
1828                 /* execute early halted first */
1829                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1830         }
1831
1832         LOG_DEBUG("target event %i (%s) for core %s", event,
1833                         jim_nvp_value2name_simple(nvp_target_event, event)->name,
1834                         target_name(target));
1835
1836         target_handle_event(target, event);
1837
1838         while (callback) {
1839                 next_callback = callback->next;
1840                 callback->callback(target, event, callback->priv);
1841                 callback = next_callback;
1842         }
1843
1844         return ERROR_OK;
1845 }
1846
1847 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1848 {
1849         struct target_reset_callback *callback;
1850
1851         LOG_DEBUG("target reset %i (%s)", reset_mode,
1852                         jim_nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1853
1854         list_for_each_entry(callback, &target_reset_callback_list, list)
1855                 callback->callback(target, reset_mode, callback->priv);
1856
1857         return ERROR_OK;
1858 }
1859
1860 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1861 {
1862         struct target_trace_callback *callback;
1863
1864         list_for_each_entry(callback, &target_trace_callback_list, list)
1865                 callback->callback(target, len, data, callback->priv);
1866
1867         return ERROR_OK;
1868 }
1869
1870 static int target_timer_callback_periodic_restart(
1871                 struct target_timer_callback *cb, struct timeval *now)
1872 {
1873         cb->when = *now;
1874         timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1875         return ERROR_OK;
1876 }
1877
1878 static int target_call_timer_callback(struct target_timer_callback *cb,
1879                 struct timeval *now)
1880 {
1881         cb->callback(cb->priv);
1882
1883         if (cb->type == TARGET_TIMER_TYPE_PERIODIC)
1884                 return target_timer_callback_periodic_restart(cb, now);
1885
1886         return target_unregister_timer_callback(cb->callback, cb->priv);
1887 }
1888
1889 static int target_call_timer_callbacks_check_time(int checktime)
1890 {
1891         static bool callback_processing;
1892
1893         /* Do not allow nesting */
1894         if (callback_processing)
1895                 return ERROR_OK;
1896
1897         callback_processing = true;
1898
1899         keep_alive();
1900
1901         struct timeval now;
1902         gettimeofday(&now, NULL);
1903
1904         /* Store an address of the place containing a pointer to the
1905          * next item; initially, that's a standalone "root of the
1906          * list" variable. */
1907         struct target_timer_callback **callback = &target_timer_callbacks;
1908         while (callback && *callback) {
1909                 if ((*callback)->removed) {
1910                         struct target_timer_callback *p = *callback;
1911                         *callback = (*callback)->next;
1912                         free(p);
1913                         continue;
1914                 }
1915
1916                 bool call_it = (*callback)->callback &&
1917                         ((!checktime && (*callback)->type == TARGET_TIMER_TYPE_PERIODIC) ||
1918                          timeval_compare(&now, &(*callback)->when) >= 0);
1919
1920                 if (call_it)
1921                         target_call_timer_callback(*callback, &now);
1922
1923                 callback = &(*callback)->next;
1924         }
1925
1926         callback_processing = false;
1927         return ERROR_OK;
1928 }
1929
1930 int target_call_timer_callbacks(void)
1931 {
1932         return target_call_timer_callbacks_check_time(1);
1933 }
1934
1935 /* invoke periodic callbacks immediately */
1936 int target_call_timer_callbacks_now(void)
1937 {
1938         return target_call_timer_callbacks_check_time(0);
1939 }
1940
1941 /* Prints the working area layout for debug purposes */
1942 static void print_wa_layout(struct target *target)
1943 {
1944         struct working_area *c = target->working_areas;
1945
1946         while (c) {
1947                 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1948                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1949                         c->address, c->address + c->size - 1, c->size);
1950                 c = c->next;
1951         }
1952 }
1953
1954 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1955 static void target_split_working_area(struct working_area *area, uint32_t size)
1956 {
1957         assert(area->free); /* Shouldn't split an allocated area */
1958         assert(size <= area->size); /* Caller should guarantee this */
1959
1960         /* Split only if not already the right size */
1961         if (size < area->size) {
1962                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1963
1964                 if (new_wa == NULL)
1965                         return;
1966
1967                 new_wa->next = area->next;
1968                 new_wa->size = area->size - size;
1969                 new_wa->address = area->address + size;
1970                 new_wa->backup = NULL;
1971                 new_wa->user = NULL;
1972                 new_wa->free = true;
1973
1974                 area->next = new_wa;
1975                 area->size = size;
1976
1977                 /* If backup memory was allocated to this area, it has the wrong size
1978                  * now so free it and it will be reallocated if/when needed */
1979                 free(area->backup);
1980                 area->backup = NULL;
1981         }
1982 }
1983
1984 /* Merge all adjacent free areas into one */
1985 static void target_merge_working_areas(struct target *target)
1986 {
1987         struct working_area *c = target->working_areas;
1988
1989         while (c && c->next) {
1990                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1991
1992                 /* Find two adjacent free areas */
1993                 if (c->free && c->next->free) {
1994                         /* Merge the last into the first */
1995                         c->size += c->next->size;
1996
1997                         /* Remove the last */
1998                         struct working_area *to_be_freed = c->next;
1999                         c->next = c->next->next;
2000                         free(to_be_freed->backup);
2001                         free(to_be_freed);
2002
2003                         /* If backup memory was allocated to the remaining area, it's has
2004                          * the wrong size now */
2005                         free(c->backup);
2006                         c->backup = NULL;
2007                 } else {
2008                         c = c->next;
2009                 }
2010         }
2011 }
2012
2013 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
2014 {
2015         /* Reevaluate working area address based on MMU state*/
2016         if (target->working_areas == NULL) {
2017                 int retval;
2018                 int enabled;
2019
2020                 retval = target->type->mmu(target, &enabled);
2021                 if (retval != ERROR_OK)
2022                         return retval;
2023
2024                 if (!enabled) {
2025                         if (target->working_area_phys_spec) {
2026                                 LOG_DEBUG("MMU disabled, using physical "
2027                                         "address for working memory " TARGET_ADDR_FMT,
2028                                         target->working_area_phys);
2029                                 target->working_area = target->working_area_phys;
2030                         } else {
2031                                 LOG_ERROR("No working memory available. "
2032                                         "Specify -work-area-phys to target.");
2033                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2034                         }
2035                 } else {
2036                         if (target->working_area_virt_spec) {
2037                                 LOG_DEBUG("MMU enabled, using virtual "
2038                                         "address for working memory " TARGET_ADDR_FMT,
2039                                         target->working_area_virt);
2040                                 target->working_area = target->working_area_virt;
2041                         } else {
2042                                 LOG_ERROR("No working memory available. "
2043                                         "Specify -work-area-virt to target.");
2044                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2045                         }
2046                 }
2047
2048                 /* Set up initial working area on first call */
2049                 struct working_area *new_wa = malloc(sizeof(*new_wa));
2050                 if (new_wa) {
2051                         new_wa->next = NULL;
2052                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
2053                         new_wa->address = target->working_area;
2054                         new_wa->backup = NULL;
2055                         new_wa->user = NULL;
2056                         new_wa->free = true;
2057                 }
2058
2059                 target->working_areas = new_wa;
2060         }
2061
2062         /* only allocate multiples of 4 byte */
2063         if (size % 4)
2064                 size = (size + 3) & (~3UL);
2065
2066         struct working_area *c = target->working_areas;
2067
2068         /* Find the first large enough working area */
2069         while (c) {
2070                 if (c->free && c->size >= size)
2071                         break;
2072                 c = c->next;
2073         }
2074
2075         if (c == NULL)
2076                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2077
2078         /* Split the working area into the requested size */
2079         target_split_working_area(c, size);
2080
2081         LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
2082                           size, c->address);
2083
2084         if (target->backup_working_area) {
2085                 if (c->backup == NULL) {
2086                         c->backup = malloc(c->size);
2087                         if (c->backup == NULL)
2088                                 return ERROR_FAIL;
2089                 }
2090
2091                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
2092                 if (retval != ERROR_OK)
2093                         return retval;
2094         }
2095
2096         /* mark as used, and return the new (reused) area */
2097         c->free = false;
2098         *area = c;
2099
2100         /* user pointer */
2101         c->user = area;
2102
2103         print_wa_layout(target);
2104
2105         return ERROR_OK;
2106 }
2107
2108 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
2109 {
2110         int retval;
2111
2112         retval = target_alloc_working_area_try(target, size, area);
2113         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
2114                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
2115         return retval;
2116
2117 }
2118
2119 static int target_restore_working_area(struct target *target, struct working_area *area)
2120 {
2121         int retval = ERROR_OK;
2122
2123         if (target->backup_working_area && area->backup != NULL) {
2124                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
2125                 if (retval != ERROR_OK)
2126                         LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
2127                                         area->size, area->address);
2128         }
2129
2130         return retval;
2131 }
2132
2133 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
2134 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
2135 {
2136         int retval = ERROR_OK;
2137
2138         if (area->free)
2139                 return retval;
2140
2141         if (restore) {
2142                 retval = target_restore_working_area(target, area);
2143                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
2144                 if (retval != ERROR_OK)
2145                         return retval;
2146         }
2147
2148         area->free = true;
2149
2150         LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
2151                         area->size, area->address);
2152
2153         /* mark user pointer invalid */
2154         /* TODO: Is this really safe? It points to some previous caller's memory.
2155          * How could we know that the area pointer is still in that place and not
2156          * some other vital data? What's the purpose of this, anyway? */
2157         *area->user = NULL;
2158         area->user = NULL;
2159
2160         target_merge_working_areas(target);
2161
2162         print_wa_layout(target);
2163
2164         return retval;
2165 }
2166
2167 int target_free_working_area(struct target *target, struct working_area *area)
2168 {
2169         return target_free_working_area_restore(target, area, 1);
2170 }
2171
2172 /* free resources and restore memory, if restoring memory fails,
2173  * free up resources anyway
2174  */
2175 static void target_free_all_working_areas_restore(struct target *target, int restore)
2176 {
2177         struct working_area *c = target->working_areas;
2178
2179         LOG_DEBUG("freeing all working areas");
2180
2181         /* Loop through all areas, restoring the allocated ones and marking them as free */
2182         while (c) {
2183                 if (!c->free) {
2184                         if (restore)
2185                                 target_restore_working_area(target, c);
2186                         c->free = true;
2187                         *c->user = NULL; /* Same as above */
2188                         c->user = NULL;
2189                 }
2190                 c = c->next;
2191         }
2192
2193         /* Run a merge pass to combine all areas into one */
2194         target_merge_working_areas(target);
2195
2196         print_wa_layout(target);
2197 }
2198
2199 void target_free_all_working_areas(struct target *target)
2200 {
2201         target_free_all_working_areas_restore(target, 1);
2202
2203         /* Now we have none or only one working area marked as free */
2204         if (target->working_areas) {
2205                 /* Free the last one to allow on-the-fly moving and resizing */
2206                 free(target->working_areas->backup);
2207                 free(target->working_areas);
2208                 target->working_areas = NULL;
2209         }
2210 }
2211
2212 /* Find the largest number of bytes that can be allocated */
2213 uint32_t target_get_working_area_avail(struct target *target)
2214 {
2215         struct working_area *c = target->working_areas;
2216         uint32_t max_size = 0;
2217
2218         if (c == NULL)
2219                 return target->working_area_size;
2220
2221         while (c) {
2222                 if (c->free && max_size < c->size)
2223                         max_size = c->size;
2224
2225                 c = c->next;
2226         }
2227
2228         return max_size;
2229 }
2230
2231 static void target_destroy(struct target *target)
2232 {
2233         if (target->type->deinit_target)
2234                 target->type->deinit_target(target);
2235
2236         free(target->semihosting);
2237
2238         jtag_unregister_event_callback(jtag_enable_callback, target);
2239
2240         struct target_event_action *teap = target->event_action;
2241         while (teap) {
2242                 struct target_event_action *next = teap->next;
2243                 Jim_DecrRefCount(teap->interp, teap->body);
2244                 free(teap);
2245                 teap = next;
2246         }
2247
2248         target_free_all_working_areas(target);
2249
2250         /* release the targets SMP list */
2251         if (target->smp) {
2252                 struct target_list *head = target->head;
2253                 while (head != NULL) {
2254                         struct target_list *pos = head->next;
2255                         head->target->smp = 0;
2256                         free(head);
2257                         head = pos;
2258                 }
2259                 target->smp = 0;
2260         }
2261
2262         rtos_destroy(target);
2263
2264         free(target->gdb_port_override);
2265         free(target->type);
2266         free(target->trace_info);
2267         free(target->fileio_info);
2268         free(target->cmd_name);
2269         free(target);
2270 }
2271
2272 void target_quit(void)
2273 {
2274         struct target_event_callback *pe = target_event_callbacks;
2275         while (pe) {
2276                 struct target_event_callback *t = pe->next;
2277                 free(pe);
2278                 pe = t;
2279         }
2280         target_event_callbacks = NULL;
2281
2282         struct target_timer_callback *pt = target_timer_callbacks;
2283         while (pt) {
2284                 struct target_timer_callback *t = pt->next;
2285                 free(pt);
2286                 pt = t;
2287         }
2288         target_timer_callbacks = NULL;
2289
2290         for (struct target *target = all_targets; target;) {
2291                 struct target *tmp;
2292
2293                 tmp = target->next;
2294                 target_destroy(target);
2295                 target = tmp;
2296         }
2297
2298         all_targets = NULL;
2299 }
2300
2301 int target_arch_state(struct target *target)
2302 {
2303         int retval;
2304         if (target == NULL) {
2305                 LOG_WARNING("No target has been configured");
2306                 return ERROR_OK;
2307         }
2308
2309         if (target->state != TARGET_HALTED)
2310                 return ERROR_OK;
2311
2312         retval = target->type->arch_state(target);
2313         return retval;
2314 }
2315
2316 static int target_get_gdb_fileio_info_default(struct target *target,
2317                 struct gdb_fileio_info *fileio_info)
2318 {
2319         /* If target does not support semi-hosting function, target
2320            has no need to provide .get_gdb_fileio_info callback.
2321            It just return ERROR_FAIL and gdb_server will return "Txx"
2322            as target halted every time.  */
2323         return ERROR_FAIL;
2324 }
2325
2326 static int target_gdb_fileio_end_default(struct target *target,
2327                 int retcode, int fileio_errno, bool ctrl_c)
2328 {
2329         return ERROR_OK;
2330 }
2331
2332 int target_profiling_default(struct target *target, uint32_t *samples,
2333                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2334 {
2335         struct timeval timeout, now;
2336
2337         gettimeofday(&timeout, NULL);
2338         timeval_add_time(&timeout, seconds, 0);
2339
2340         LOG_INFO("Starting profiling. Halting and resuming the"
2341                         " target as often as we can...");
2342
2343         uint32_t sample_count = 0;
2344         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2345         struct reg *reg = register_get_by_name(target->reg_cache, "pc", true);
2346
2347         int retval = ERROR_OK;
2348         for (;;) {
2349                 target_poll(target);
2350                 if (target->state == TARGET_HALTED) {
2351                         uint32_t t = buf_get_u32(reg->value, 0, 32);
2352                         samples[sample_count++] = t;
2353                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
2354                         retval = target_resume(target, 1, 0, 0, 0);
2355                         target_poll(target);
2356                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2357                 } else if (target->state == TARGET_RUNNING) {
2358                         /* We want to quickly sample the PC. */
2359                         retval = target_halt(target);
2360                 } else {
2361                         LOG_INFO("Target not halted or running");
2362                         retval = ERROR_OK;
2363                         break;
2364                 }
2365
2366                 if (retval != ERROR_OK)
2367                         break;
2368
2369                 gettimeofday(&now, NULL);
2370                 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2371                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2372                         break;
2373                 }
2374         }
2375
2376         *num_samples = sample_count;
2377         return retval;
2378 }
2379
2380 /* Single aligned words are guaranteed to use 16 or 32 bit access
2381  * mode respectively, otherwise data is handled as quickly as
2382  * possible
2383  */
2384 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2385 {
2386         LOG_DEBUG("writing buffer of %" PRIu32 " byte at " TARGET_ADDR_FMT,
2387                           size, address);
2388
2389         if (!target_was_examined(target)) {
2390                 LOG_ERROR("Target not examined yet");
2391                 return ERROR_FAIL;
2392         }
2393
2394         if (size == 0)
2395                 return ERROR_OK;
2396
2397         if ((address + size - 1) < address) {
2398                 /* GDB can request this when e.g. PC is 0xfffffffc */
2399                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2400                                   address,
2401                                   size);
2402                 return ERROR_FAIL;
2403         }
2404
2405         return target->type->write_buffer(target, address, size, buffer);
2406 }
2407
2408 static int target_write_buffer_default(struct target *target,
2409         target_addr_t address, uint32_t count, const uint8_t *buffer)
2410 {
2411         uint32_t size;
2412         unsigned int data_bytes = target_data_bits(target) / 8;
2413
2414         /* Align up to maximum bytes. The loop condition makes sure the next pass
2415          * will have something to do with the size we leave to it. */
2416         for (size = 1;
2417                         size < data_bytes && count >= size * 2 + (address & size);
2418                         size *= 2) {
2419                 if (address & size) {
2420                         int retval = target_write_memory(target, address, size, 1, buffer);
2421                         if (retval != ERROR_OK)
2422                                 return retval;
2423                         address += size;
2424                         count -= size;
2425                         buffer += size;
2426                 }
2427         }
2428
2429         /* Write the data with as large access size as possible. */
2430         for (; size > 0; size /= 2) {
2431                 uint32_t aligned = count - count % size;
2432                 if (aligned > 0) {
2433                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2434                         if (retval != ERROR_OK)
2435                                 return retval;
2436                         address += aligned;
2437                         count -= aligned;
2438                         buffer += aligned;
2439                 }
2440         }
2441
2442         return ERROR_OK;
2443 }
2444
2445 /* Single aligned words are guaranteed to use 16 or 32 bit access
2446  * mode respectively, otherwise data is handled as quickly as
2447  * possible
2448  */
2449 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2450 {
2451         LOG_DEBUG("reading buffer of %" PRIu32 " byte at " TARGET_ADDR_FMT,
2452                           size, address);
2453
2454         if (!target_was_examined(target)) {
2455                 LOG_ERROR("Target not examined yet");
2456                 return ERROR_FAIL;
2457         }
2458
2459         if (size == 0)
2460                 return ERROR_OK;
2461
2462         if ((address + size - 1) < address) {
2463                 /* GDB can request this when e.g. PC is 0xfffffffc */
2464                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2465                                   address,
2466                                   size);
2467                 return ERROR_FAIL;
2468         }
2469
2470         return target->type->read_buffer(target, address, size, buffer);
2471 }
2472
2473 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2474 {
2475         uint32_t size;
2476         unsigned int data_bytes = target_data_bits(target) / 8;
2477
2478         /* Align up to maximum bytes. The loop condition makes sure the next pass
2479          * will have something to do with the size we leave to it. */
2480         for (size = 1;
2481                         size < data_bytes && count >= size * 2 + (address & size);
2482                         size *= 2) {
2483                 if (address & size) {
2484                         int retval = target_read_memory(target, address, size, 1, buffer);
2485                         if (retval != ERROR_OK)
2486                                 return retval;
2487                         address += size;
2488                         count -= size;
2489                         buffer += size;
2490                 }
2491         }
2492
2493         /* Read the data with as large access size as possible. */
2494         for (; size > 0; size /= 2) {
2495                 uint32_t aligned = count - count % size;
2496                 if (aligned > 0) {
2497                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2498                         if (retval != ERROR_OK)
2499                                 return retval;
2500                         address += aligned;
2501                         count -= aligned;
2502                         buffer += aligned;
2503                 }
2504         }
2505
2506         return ERROR_OK;
2507 }
2508
2509 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t *crc)
2510 {
2511         uint8_t *buffer;
2512         int retval;
2513         uint32_t i;
2514         uint32_t checksum = 0;
2515         if (!target_was_examined(target)) {
2516                 LOG_ERROR("Target not examined yet");
2517                 return ERROR_FAIL;
2518         }
2519
2520         retval = target->type->checksum_memory(target, address, size, &checksum);
2521         if (retval != ERROR_OK) {
2522                 buffer = malloc(size);
2523                 if (buffer == NULL) {
2524                         LOG_ERROR("error allocating buffer for section (%" PRIu32 " bytes)", size);
2525                         return ERROR_COMMAND_SYNTAX_ERROR;
2526                 }
2527                 retval = target_read_buffer(target, address, size, buffer);
2528                 if (retval != ERROR_OK) {
2529                         free(buffer);
2530                         return retval;
2531                 }
2532
2533                 /* convert to target endianness */
2534                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2535                         uint32_t target_data;
2536                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2537                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2538                 }
2539
2540                 retval = image_calculate_checksum(buffer, size, &checksum);
2541                 free(buffer);
2542         }
2543
2544         *crc = checksum;
2545
2546         return retval;
2547 }
2548
2549 int target_blank_check_memory(struct target *target,
2550         struct target_memory_check_block *blocks, int num_blocks,
2551         uint8_t erased_value)
2552 {
2553         if (!target_was_examined(target)) {
2554                 LOG_ERROR("Target not examined yet");
2555                 return ERROR_FAIL;
2556         }
2557
2558         if (target->type->blank_check_memory == NULL)
2559                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2560
2561         return target->type->blank_check_memory(target, blocks, num_blocks, erased_value);
2562 }
2563
2564 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2565 {
2566         uint8_t value_buf[8];
2567         if (!target_was_examined(target)) {
2568                 LOG_ERROR("Target not examined yet");
2569                 return ERROR_FAIL;
2570         }
2571
2572         int retval = target_read_memory(target, address, 8, 1, value_buf);
2573
2574         if (retval == ERROR_OK) {
2575                 *value = target_buffer_get_u64(target, value_buf);
2576                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2577                                   address,
2578                                   *value);
2579         } else {
2580                 *value = 0x0;
2581                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2582                                   address);
2583         }
2584
2585         return retval;
2586 }
2587
2588 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2589 {
2590         uint8_t value_buf[4];
2591         if (!target_was_examined(target)) {
2592                 LOG_ERROR("Target not examined yet");
2593                 return ERROR_FAIL;
2594         }
2595
2596         int retval = target_read_memory(target, address, 4, 1, value_buf);
2597
2598         if (retval == ERROR_OK) {
2599                 *value = target_buffer_get_u32(target, value_buf);
2600                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2601                                   address,
2602                                   *value);
2603         } else {
2604                 *value = 0x0;
2605                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2606                                   address);
2607         }
2608
2609         return retval;
2610 }
2611
2612 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2613 {
2614         uint8_t value_buf[2];
2615         if (!target_was_examined(target)) {
2616                 LOG_ERROR("Target not examined yet");
2617                 return ERROR_FAIL;
2618         }
2619
2620         int retval = target_read_memory(target, address, 2, 1, value_buf);
2621
2622         if (retval == ERROR_OK) {
2623                 *value = target_buffer_get_u16(target, value_buf);
2624                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2625                                   address,
2626                                   *value);
2627         } else {
2628                 *value = 0x0;
2629                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2630                                   address);
2631         }
2632
2633         return retval;
2634 }
2635
2636 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2637 {
2638         if (!target_was_examined(target)) {
2639                 LOG_ERROR("Target not examined yet");
2640                 return ERROR_FAIL;
2641         }
2642
2643         int retval = target_read_memory(target, address, 1, 1, value);
2644
2645         if (retval == ERROR_OK) {
2646                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2647                                   address,
2648                                   *value);
2649         } else {
2650                 *value = 0x0;
2651                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2652                                   address);
2653         }
2654
2655         return retval;
2656 }
2657
2658 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2659 {
2660         int retval;
2661         uint8_t value_buf[8];
2662         if (!target_was_examined(target)) {
2663                 LOG_ERROR("Target not examined yet");
2664                 return ERROR_FAIL;
2665         }
2666
2667         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2668                           address,
2669                           value);
2670
2671         target_buffer_set_u64(target, value_buf, value);
2672         retval = target_write_memory(target, address, 8, 1, value_buf);
2673         if (retval != ERROR_OK)
2674                 LOG_DEBUG("failed: %i", retval);
2675
2676         return retval;
2677 }
2678
2679 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2680 {
2681         int retval;
2682         uint8_t value_buf[4];
2683         if (!target_was_examined(target)) {
2684                 LOG_ERROR("Target not examined yet");
2685                 return ERROR_FAIL;
2686         }
2687
2688         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2689                           address,
2690                           value);
2691
2692         target_buffer_set_u32(target, value_buf, value);
2693         retval = target_write_memory(target, address, 4, 1, value_buf);
2694         if (retval != ERROR_OK)
2695                 LOG_DEBUG("failed: %i", retval);
2696
2697         return retval;
2698 }
2699
2700 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2701 {
2702         int retval;
2703         uint8_t value_buf[2];
2704         if (!target_was_examined(target)) {
2705                 LOG_ERROR("Target not examined yet");
2706                 return ERROR_FAIL;
2707         }
2708
2709         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2710                           address,
2711                           value);
2712
2713         target_buffer_set_u16(target, value_buf, value);
2714         retval = target_write_memory(target, address, 2, 1, value_buf);
2715         if (retval != ERROR_OK)
2716                 LOG_DEBUG("failed: %i", retval);
2717
2718         return retval;
2719 }
2720
2721 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2722 {
2723         int retval;
2724         if (!target_was_examined(target)) {
2725                 LOG_ERROR("Target not examined yet");
2726                 return ERROR_FAIL;
2727         }
2728
2729         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2730                           address, value);
2731
2732         retval = target_write_memory(target, address, 1, 1, &value);
2733         if (retval != ERROR_OK)
2734                 LOG_DEBUG("failed: %i", retval);
2735
2736         return retval;
2737 }
2738
2739 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2740 {
2741         int retval;
2742         uint8_t value_buf[8];
2743         if (!target_was_examined(target)) {
2744                 LOG_ERROR("Target not examined yet");
2745                 return ERROR_FAIL;
2746         }
2747
2748         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2749                           address,
2750                           value);
2751
2752         target_buffer_set_u64(target, value_buf, value);
2753         retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2754         if (retval != ERROR_OK)
2755                 LOG_DEBUG("failed: %i", retval);
2756
2757         return retval;
2758 }
2759
2760 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2761 {
2762         int retval;
2763         uint8_t value_buf[4];
2764         if (!target_was_examined(target)) {
2765                 LOG_ERROR("Target not examined yet");
2766                 return ERROR_FAIL;
2767         }
2768
2769         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2770                           address,
2771                           value);
2772
2773         target_buffer_set_u32(target, value_buf, value);
2774         retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2775         if (retval != ERROR_OK)
2776                 LOG_DEBUG("failed: %i", retval);
2777
2778         return retval;
2779 }
2780
2781 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2782 {
2783         int retval;
2784         uint8_t value_buf[2];
2785         if (!target_was_examined(target)) {
2786                 LOG_ERROR("Target not examined yet");
2787                 return ERROR_FAIL;
2788         }
2789
2790         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2791                           address,
2792                           value);
2793
2794         target_buffer_set_u16(target, value_buf, value);
2795         retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2796         if (retval != ERROR_OK)
2797                 LOG_DEBUG("failed: %i", retval);
2798
2799         return retval;
2800 }
2801
2802 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2803 {
2804         int retval;
2805         if (!target_was_examined(target)) {
2806                 LOG_ERROR("Target not examined yet");
2807                 return ERROR_FAIL;
2808         }
2809
2810         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2811                           address, value);
2812
2813         retval = target_write_phys_memory(target, address, 1, 1, &value);
2814         if (retval != ERROR_OK)
2815                 LOG_DEBUG("failed: %i", retval);
2816
2817         return retval;
2818 }
2819
2820 static int find_target(struct command_invocation *cmd, const char *name)
2821 {
2822         struct target *target = get_target(name);
2823         if (target == NULL) {
2824                 command_print(cmd, "Target: %s is unknown, try one of:\n", name);
2825                 return ERROR_FAIL;
2826         }
2827         if (!target->tap->enabled) {
2828                 command_print(cmd, "Target: TAP %s is disabled, "
2829                          "can't be the current target\n",
2830                          target->tap->dotted_name);
2831                 return ERROR_FAIL;
2832         }
2833
2834         cmd->ctx->current_target = target;
2835         if (cmd->ctx->current_target_override)
2836                 cmd->ctx->current_target_override = target;
2837
2838         return ERROR_OK;
2839 }
2840
2841
2842 COMMAND_HANDLER(handle_targets_command)
2843 {
2844         int retval = ERROR_OK;
2845         if (CMD_ARGC == 1) {
2846                 retval = find_target(CMD, CMD_ARGV[0]);
2847                 if (retval == ERROR_OK) {
2848                         /* we're done! */
2849                         return retval;
2850                 }
2851         }
2852
2853         struct target *target = all_targets;
2854         command_print(CMD, "    TargetName         Type       Endian TapName            State       ");
2855         command_print(CMD, "--  ------------------ ---------- ------ ------------------ ------------");
2856         while (target) {
2857                 const char *state;
2858                 char marker = ' ';
2859
2860                 if (target->tap->enabled)
2861                         state = target_state_name(target);
2862                 else
2863                         state = "tap-disabled";
2864
2865                 if (CMD_CTX->current_target == target)
2866                         marker = '*';
2867
2868                 /* keep columns lined up to match the headers above */
2869                 command_print(CMD,
2870                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2871                                 target->target_number,
2872                                 marker,
2873                                 target_name(target),
2874                                 target_type_name(target),
2875                                 jim_nvp_value2name_simple(nvp_target_endian,
2876                                         target->endianness)->name,
2877                                 target->tap->dotted_name,
2878                                 state);
2879                 target = target->next;
2880         }
2881
2882         return retval;
2883 }
2884
2885 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2886
2887 static int powerDropout;
2888 static int srstAsserted;
2889
2890 static int runPowerRestore;
2891 static int runPowerDropout;
2892 static int runSrstAsserted;
2893 static int runSrstDeasserted;
2894
2895 static int sense_handler(void)
2896 {
2897         static int prevSrstAsserted;
2898         static int prevPowerdropout;
2899
2900         int retval = jtag_power_dropout(&powerDropout);
2901         if (retval != ERROR_OK)
2902                 return retval;
2903
2904         int powerRestored;
2905         powerRestored = prevPowerdropout && !powerDropout;
2906         if (powerRestored)
2907                 runPowerRestore = 1;
2908
2909         int64_t current = timeval_ms();
2910         static int64_t lastPower;
2911         bool waitMore = lastPower + 2000 > current;
2912         if (powerDropout && !waitMore) {
2913                 runPowerDropout = 1;
2914                 lastPower = current;
2915         }
2916
2917         retval = jtag_srst_asserted(&srstAsserted);
2918         if (retval != ERROR_OK)
2919                 return retval;
2920
2921         int srstDeasserted;
2922         srstDeasserted = prevSrstAsserted && !srstAsserted;
2923
2924         static int64_t lastSrst;
2925         waitMore = lastSrst + 2000 > current;
2926         if (srstDeasserted && !waitMore) {
2927                 runSrstDeasserted = 1;
2928                 lastSrst = current;
2929         }
2930
2931         if (!prevSrstAsserted && srstAsserted)
2932                 runSrstAsserted = 1;
2933
2934         prevSrstAsserted = srstAsserted;
2935         prevPowerdropout = powerDropout;
2936
2937         if (srstDeasserted || powerRestored) {
2938                 /* Other than logging the event we can't do anything here.
2939                  * Issuing a reset is a particularly bad idea as we might
2940                  * be inside a reset already.
2941                  */
2942         }
2943
2944         return ERROR_OK;
2945 }
2946
2947 /* process target state changes */
2948 static int handle_target(void *priv)
2949 {
2950         Jim_Interp *interp = (Jim_Interp *)priv;
2951         int retval = ERROR_OK;
2952
2953         if (!is_jtag_poll_safe()) {
2954                 /* polling is disabled currently */
2955                 return ERROR_OK;
2956         }
2957
2958         /* we do not want to recurse here... */
2959         static int recursive;
2960         if (!recursive) {
2961                 recursive = 1;
2962                 sense_handler();
2963                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2964                  * We need to avoid an infinite loop/recursion here and we do that by
2965                  * clearing the flags after running these events.
2966                  */
2967                 int did_something = 0;
2968                 if (runSrstAsserted) {
2969                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2970                         Jim_Eval(interp, "srst_asserted");
2971                         did_something = 1;
2972                 }
2973                 if (runSrstDeasserted) {
2974                         Jim_Eval(interp, "srst_deasserted");
2975                         did_something = 1;
2976                 }
2977                 if (runPowerDropout) {
2978                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2979                         Jim_Eval(interp, "power_dropout");
2980                         did_something = 1;
2981                 }
2982                 if (runPowerRestore) {
2983                         Jim_Eval(interp, "power_restore");
2984                         did_something = 1;
2985                 }
2986
2987                 if (did_something) {
2988                         /* clear detect flags */
2989                         sense_handler();
2990                 }
2991
2992                 /* clear action flags */
2993
2994                 runSrstAsserted = 0;
2995                 runSrstDeasserted = 0;
2996                 runPowerRestore = 0;
2997                 runPowerDropout = 0;
2998
2999                 recursive = 0;
3000         }
3001
3002         /* Poll targets for state changes unless that's globally disabled.
3003          * Skip targets that are currently disabled.
3004          */
3005         for (struct target *target = all_targets;
3006                         is_jtag_poll_safe() && target;
3007                         target = target->next) {
3008
3009                 if (!target_was_examined(target))
3010                         continue;
3011
3012                 if (!target->tap->enabled)
3013                         continue;
3014
3015                 if (target->backoff.times > target->backoff.count) {
3016                         /* do not poll this time as we failed previously */
3017                         target->backoff.count++;
3018                         continue;
3019                 }
3020                 target->backoff.count = 0;
3021
3022                 /* only poll target if we've got power and srst isn't asserted */
3023                 if (!powerDropout && !srstAsserted) {
3024                         /* polling may fail silently until the target has been examined */
3025                         retval = target_poll(target);
3026                         if (retval != ERROR_OK) {
3027                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
3028                                 if (target->backoff.times * polling_interval < 5000) {
3029                                         target->backoff.times *= 2;
3030                                         target->backoff.times++;
3031                                 }
3032
3033                                 /* Tell GDB to halt the debugger. This allows the user to
3034                                  * run monitor commands to handle the situation.
3035                                  */
3036                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
3037                         }
3038                         if (target->backoff.times > 0) {
3039                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
3040                                 target_reset_examined(target);
3041                                 retval = target_examine_one(target);
3042                                 /* Target examination could have failed due to unstable connection,
3043                                  * but we set the examined flag anyway to repoll it later */
3044                                 if (retval != ERROR_OK) {
3045                                         target->examined = true;
3046                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
3047                                                  target->backoff.times * polling_interval);
3048                                         return retval;
3049                                 }
3050                         }
3051
3052                         /* Since we succeeded, we reset backoff count */
3053                         target->backoff.times = 0;
3054                 }
3055         }
3056
3057         return retval;
3058 }
3059
3060 COMMAND_HANDLER(handle_reg_command)
3061 {
3062         struct target *target;
3063         struct reg *reg = NULL;
3064         unsigned count = 0;
3065         char *value;
3066
3067         LOG_DEBUG("-");
3068
3069         target = get_current_target(CMD_CTX);
3070
3071         /* list all available registers for the current target */
3072         if (CMD_ARGC == 0) {
3073                 struct reg_cache *cache = target->reg_cache;
3074
3075                 count = 0;
3076                 while (cache) {
3077                         unsigned i;
3078
3079                         command_print(CMD, "===== %s", cache->name);
3080
3081                         for (i = 0, reg = cache->reg_list;
3082                                         i < cache->num_regs;
3083                                         i++, reg++, count++) {
3084                                 if (reg->exist == false || reg->hidden)
3085                                         continue;
3086                                 /* only print cached values if they are valid */
3087                                 if (reg->valid) {
3088                                         value = buf_to_hex_str(reg->value,
3089                                                         reg->size);
3090                                         command_print(CMD,
3091                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
3092                                                         count, reg->name,
3093                                                         reg->size, value,
3094                                                         reg->dirty
3095                                                                 ? " (dirty)"
3096                                                                 : "");
3097                                         free(value);
3098                                 } else {
3099                                         command_print(CMD, "(%i) %s (/%" PRIu32 ")",
3100                                                           count, reg->name,
3101                                                           reg->size);
3102                                 }
3103                         }
3104                         cache = cache->next;
3105                 }
3106
3107                 return ERROR_OK;
3108         }
3109
3110         /* access a single register by its ordinal number */
3111         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
3112                 unsigned num;
3113                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
3114
3115                 struct reg_cache *cache = target->reg_cache;
3116                 count = 0;
3117                 while (cache) {
3118                         unsigned i;
3119                         for (i = 0; i < cache->num_regs; i++) {
3120                                 if (count++ == num) {
3121                                         reg = &cache->reg_list[i];
3122                                         break;
3123                                 }
3124                         }
3125                         if (reg)
3126                                 break;
3127                         cache = cache->next;
3128                 }
3129
3130                 if (!reg) {
3131                         command_print(CMD, "%i is out of bounds, the current target "
3132                                         "has only %i registers (0 - %i)", num, count, count - 1);
3133                         return ERROR_OK;
3134                 }
3135         } else {
3136                 /* access a single register by its name */
3137                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], true);
3138
3139                 if (!reg)
3140                         goto not_found;
3141         }
3142
3143         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
3144
3145         if (!reg->exist)
3146                 goto not_found;
3147
3148         /* display a register */
3149         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
3150                         && (CMD_ARGV[1][0] <= '9')))) {
3151                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
3152                         reg->valid = 0;
3153
3154                 if (reg->valid == 0)
3155                         reg->type->get(reg);
3156                 value = buf_to_hex_str(reg->value, reg->size);
3157                 command_print(CMD, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
3158                 free(value);
3159                 return ERROR_OK;
3160         }
3161
3162         /* set register value */
3163         if (CMD_ARGC == 2) {
3164                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
3165                 if (buf == NULL)
3166                         return ERROR_FAIL;
3167                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
3168
3169                 reg->type->set(reg, buf);
3170
3171                 value = buf_to_hex_str(reg->value, reg->size);
3172                 command_print(CMD, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
3173                 free(value);
3174
3175                 free(buf);
3176
3177                 return ERROR_OK;
3178         }
3179
3180         return ERROR_COMMAND_SYNTAX_ERROR;
3181
3182 not_found:
3183         command_print(CMD, "register %s not found in current target", CMD_ARGV[0]);
3184         return ERROR_OK;
3185 }
3186
3187 COMMAND_HANDLER(handle_poll_command)
3188 {
3189         int retval = ERROR_OK;
3190         struct target *target = get_current_target(CMD_CTX);
3191
3192         if (CMD_ARGC == 0) {
3193                 command_print(CMD, "background polling: %s",
3194                                 jtag_poll_get_enabled() ? "on" : "off");
3195                 command_print(CMD, "TAP: %s (%s)",
3196                                 target->tap->dotted_name,
3197                                 target->tap->enabled ? "enabled" : "disabled");
3198                 if (!target->tap->enabled)
3199                         return ERROR_OK;
3200                 retval = target_poll(target);
3201                 if (retval != ERROR_OK)
3202                         return retval;
3203                 retval = target_arch_state(target);
3204                 if (retval != ERROR_OK)
3205                         return retval;
3206         } else if (CMD_ARGC == 1) {
3207                 bool enable;
3208                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
3209                 jtag_poll_set_enabled(enable);
3210         } else
3211                 return ERROR_COMMAND_SYNTAX_ERROR;
3212
3213         return retval;
3214 }
3215
3216 COMMAND_HANDLER(handle_wait_halt_command)
3217 {
3218         if (CMD_ARGC > 1)
3219                 return ERROR_COMMAND_SYNTAX_ERROR;
3220
3221         unsigned ms = DEFAULT_HALT_TIMEOUT;
3222         if (1 == CMD_ARGC) {
3223                 int retval = parse_uint(CMD_ARGV[0], &ms);
3224                 if (ERROR_OK != retval)
3225                         return ERROR_COMMAND_SYNTAX_ERROR;
3226         }
3227
3228         struct target *target = get_current_target(CMD_CTX);
3229         return target_wait_state(target, TARGET_HALTED, ms);
3230 }
3231
3232 /* wait for target state to change. The trick here is to have a low
3233  * latency for short waits and not to suck up all the CPU time
3234  * on longer waits.
3235  *
3236  * After 500ms, keep_alive() is invoked
3237  */
3238 int target_wait_state(struct target *target, enum target_state state, int ms)
3239 {
3240         int retval;
3241         int64_t then = 0, cur;
3242         bool once = true;
3243
3244         for (;;) {
3245                 retval = target_poll(target);
3246                 if (retval != ERROR_OK)
3247                         return retval;
3248                 if (target->state == state)
3249                         break;
3250                 cur = timeval_ms();
3251                 if (once) {
3252                         once = false;
3253                         then = timeval_ms();
3254                         LOG_DEBUG("waiting for target %s...",
3255                                 jim_nvp_value2name_simple(nvp_target_state, state)->name);
3256                 }
3257
3258                 if (cur-then > 500)
3259                         keep_alive();
3260
3261                 if ((cur-then) > ms) {
3262                         LOG_ERROR("timed out while waiting for target %s",
3263                                 jim_nvp_value2name_simple(nvp_target_state, state)->name);
3264                         return ERROR_FAIL;
3265                 }
3266         }
3267
3268         return ERROR_OK;
3269 }
3270
3271 COMMAND_HANDLER(handle_halt_command)
3272 {
3273         LOG_DEBUG("-");
3274
3275         struct target *target = get_current_target(CMD_CTX);
3276
3277         target->verbose_halt_msg = true;
3278
3279         int retval = target_halt(target);
3280         if (ERROR_OK != retval)
3281                 return retval;
3282
3283         if (CMD_ARGC == 1) {
3284                 unsigned wait_local;
3285                 retval = parse_uint(CMD_ARGV[0], &wait_local);
3286                 if (ERROR_OK != retval)
3287                         return ERROR_COMMAND_SYNTAX_ERROR;
3288                 if (!wait_local)
3289                         return ERROR_OK;
3290         }
3291
3292         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
3293 }
3294
3295 COMMAND_HANDLER(handle_soft_reset_halt_command)
3296 {
3297         struct target *target = get_current_target(CMD_CTX);
3298
3299         LOG_USER("requesting target halt and executing a soft reset");
3300
3301         target_soft_reset_halt(target);
3302
3303         return ERROR_OK;
3304 }
3305
3306 COMMAND_HANDLER(handle_reset_command)
3307 {
3308         if (CMD_ARGC > 1)
3309                 return ERROR_COMMAND_SYNTAX_ERROR;
3310
3311         enum target_reset_mode reset_mode = RESET_RUN;
3312         if (CMD_ARGC == 1) {
3313                 const struct jim_nvp *n;
3314                 n = jim_nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
3315                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
3316                         return ERROR_COMMAND_SYNTAX_ERROR;
3317                 reset_mode = n->value;
3318         }
3319
3320         /* reset *all* targets */
3321         return target_process_reset(CMD, reset_mode);
3322 }
3323
3324
3325 COMMAND_HANDLER(handle_resume_command)
3326 {
3327         int current = 1;
3328         if (CMD_ARGC > 1)
3329                 return ERROR_COMMAND_SYNTAX_ERROR;
3330
3331         struct target *target = get_current_target(CMD_CTX);
3332
3333         /* with no CMD_ARGV, resume from current pc, addr = 0,
3334          * with one arguments, addr = CMD_ARGV[0],
3335          * handle breakpoints, not debugging */
3336         target_addr_t addr = 0;
3337         if (CMD_ARGC == 1) {
3338                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3339                 current = 0;
3340         }
3341
3342         return target_resume(target, current, addr, 1, 0);
3343 }
3344
3345 COMMAND_HANDLER(handle_step_command)
3346 {
3347         if (CMD_ARGC > 1)
3348                 return ERROR_COMMAND_SYNTAX_ERROR;
3349
3350         LOG_DEBUG("-");
3351
3352         /* with no CMD_ARGV, step from current pc, addr = 0,
3353          * with one argument addr = CMD_ARGV[0],
3354          * handle breakpoints, debugging */
3355         target_addr_t addr = 0;
3356         int current_pc = 1;
3357         if (CMD_ARGC == 1) {
3358                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3359                 current_pc = 0;
3360         }
3361
3362         struct target *target = get_current_target(CMD_CTX);
3363
3364         return target_step(target, current_pc, addr, 1);
3365 }
3366
3367 void target_handle_md_output(struct command_invocation *cmd,
3368                 struct target *target, target_addr_t address, unsigned size,
3369                 unsigned count, const uint8_t *buffer)
3370 {
3371         const unsigned line_bytecnt = 32;
3372         unsigned line_modulo = line_bytecnt / size;
3373
3374         char output[line_bytecnt * 4 + 1];
3375         unsigned output_len = 0;
3376
3377         const char *value_fmt;
3378         switch (size) {
3379         case 8:
3380                 value_fmt = "%16.16"PRIx64" ";
3381                 break;
3382         case 4:
3383                 value_fmt = "%8.8"PRIx64" ";
3384                 break;
3385         case 2:
3386                 value_fmt = "%4.4"PRIx64" ";
3387                 break;
3388         case 1:
3389                 value_fmt = "%2.2"PRIx64" ";
3390                 break;
3391         default:
3392                 /* "can't happen", caller checked */
3393                 LOG_ERROR("invalid memory read size: %u", size);
3394                 return;
3395         }
3396
3397         for (unsigned i = 0; i < count; i++) {
3398                 if (i % line_modulo == 0) {
3399                         output_len += snprintf(output + output_len,
3400                                         sizeof(output) - output_len,
3401                                         TARGET_ADDR_FMT ": ",
3402                                         (address + (i * size)));
3403                 }
3404
3405                 uint64_t value = 0;
3406                 const uint8_t *value_ptr = buffer + i * size;
3407                 switch (size) {
3408                 case 8:
3409                         value = target_buffer_get_u64(target, value_ptr);
3410                         break;
3411                 case 4:
3412                         value = target_buffer_get_u32(target, value_ptr);
3413                         break;
3414                 case 2:
3415                         value = target_buffer_get_u16(target, value_ptr);
3416                         break;
3417                 case 1:
3418                         value = *value_ptr;
3419                 }
3420                 output_len += snprintf(output + output_len,
3421                                 sizeof(output) - output_len,
3422                                 value_fmt, value);
3423
3424                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3425                         command_print(cmd, "%s", output);
3426                         output_len = 0;
3427                 }
3428         }
3429 }
3430
3431 COMMAND_HANDLER(handle_md_command)
3432 {
3433         if (CMD_ARGC < 1)
3434                 return ERROR_COMMAND_SYNTAX_ERROR;
3435
3436         unsigned size = 0;
3437         switch (CMD_NAME[2]) {
3438         case 'd':
3439                 size = 8;
3440                 break;
3441         case 'w':
3442                 size = 4;
3443                 break;
3444         case 'h':
3445                 size = 2;
3446                 break;
3447         case 'b':
3448                 size = 1;
3449                 break;
3450         default:
3451                 return ERROR_COMMAND_SYNTAX_ERROR;
3452         }
3453
3454         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3455         int (*fn)(struct target *target,
3456                         target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3457         if (physical) {
3458                 CMD_ARGC--;
3459                 CMD_ARGV++;
3460                 fn = target_read_phys_memory;
3461         } else
3462                 fn = target_read_memory;
3463         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3464                 return ERROR_COMMAND_SYNTAX_ERROR;
3465
3466         target_addr_t address;
3467         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3468
3469         unsigned count = 1;
3470         if (CMD_ARGC == 2)
3471                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3472
3473         uint8_t *buffer = calloc(count, size);
3474         if (buffer == NULL) {
3475                 LOG_ERROR("Failed to allocate md read buffer");
3476                 return ERROR_FAIL;
3477         }
3478
3479         struct target *target = get_current_target(CMD_CTX);
3480         int retval = fn(target, address, size, count, buffer);
3481         if (ERROR_OK == retval)
3482                 target_handle_md_output(CMD, target, address, size, count, buffer);
3483
3484         free(buffer);
3485
3486         return retval;
3487 }
3488
3489 typedef int (*target_write_fn)(struct target *target,
3490                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3491
3492 static int target_fill_mem(struct target *target,
3493                 target_addr_t address,
3494                 target_write_fn fn,
3495                 unsigned data_size,
3496                 /* value */
3497                 uint64_t b,
3498                 /* count */
3499                 unsigned c)
3500 {
3501         /* We have to write in reasonably large chunks to be able
3502          * to fill large memory areas with any sane speed */
3503         const unsigned chunk_size = 16384;
3504         uint8_t *target_buf = malloc(chunk_size * data_size);
3505         if (target_buf == NULL) {
3506                 LOG_ERROR("Out of memory");
3507                 return ERROR_FAIL;
3508         }
3509
3510         for (unsigned i = 0; i < chunk_size; i++) {
3511                 switch (data_size) {
3512                 case 8:
3513                         target_buffer_set_u64(target, target_buf + i * data_size, b);
3514                         break;
3515                 case 4:
3516                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3517                         break;
3518                 case 2:
3519                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3520                         break;
3521                 case 1:
3522                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3523                         break;
3524                 default:
3525                         exit(-1);
3526                 }
3527         }
3528
3529         int retval = ERROR_OK;
3530
3531         for (unsigned x = 0; x < c; x += chunk_size) {
3532                 unsigned current;
3533                 current = c - x;
3534                 if (current > chunk_size)
3535                         current = chunk_size;
3536                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3537                 if (retval != ERROR_OK)
3538                         break;
3539                 /* avoid GDB timeouts */
3540                 keep_alive();
3541         }
3542         free(target_buf);
3543
3544         return retval;
3545 }
3546
3547
3548 COMMAND_HANDLER(handle_mw_command)
3549 {
3550         if (CMD_ARGC < 2)
3551                 return ERROR_COMMAND_SYNTAX_ERROR;
3552         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3553         target_write_fn fn;
3554         if (physical) {
3555                 CMD_ARGC--;
3556                 CMD_ARGV++;
3557                 fn = target_write_phys_memory;
3558         } else
3559                 fn = target_write_memory;
3560         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3561                 return ERROR_COMMAND_SYNTAX_ERROR;
3562
3563         target_addr_t address;
3564         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3565
3566         uint64_t value;
3567         COMMAND_PARSE_NUMBER(u64, CMD_ARGV[1], value);
3568
3569         unsigned count = 1;
3570         if (CMD_ARGC == 3)
3571                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3572
3573         struct target *target = get_current_target(CMD_CTX);
3574         unsigned wordsize;
3575         switch (CMD_NAME[2]) {
3576                 case 'd':
3577                         wordsize = 8;
3578                         break;
3579                 case 'w':
3580                         wordsize = 4;
3581                         break;
3582                 case 'h':
3583                         wordsize = 2;
3584                         break;
3585                 case 'b':
3586                         wordsize = 1;
3587                         break;
3588                 default:
3589                         return ERROR_COMMAND_SYNTAX_ERROR;
3590         }
3591
3592         return target_fill_mem(target, address, fn, wordsize, value, count);
3593 }
3594
3595 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3596                 target_addr_t *min_address, target_addr_t *max_address)
3597 {
3598         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3599                 return ERROR_COMMAND_SYNTAX_ERROR;
3600
3601         /* a base address isn't always necessary,
3602          * default to 0x0 (i.e. don't relocate) */
3603         if (CMD_ARGC >= 2) {
3604                 target_addr_t addr;
3605                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3606                 image->base_address = addr;
3607                 image->base_address_set = true;
3608         } else
3609                 image->base_address_set = false;
3610
3611         image->start_address_set = false;
3612
3613         if (CMD_ARGC >= 4)
3614                 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3615         if (CMD_ARGC == 5) {
3616                 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3617                 /* use size (given) to find max (required) */
3618                 *max_address += *min_address;
3619         }
3620
3621         if (*min_address > *max_address)
3622                 return ERROR_COMMAND_SYNTAX_ERROR;
3623
3624         return ERROR_OK;
3625 }
3626
3627 COMMAND_HANDLER(handle_load_image_command)
3628 {
3629         uint8_t *buffer;
3630         size_t buf_cnt;
3631         uint32_t image_size;
3632         target_addr_t min_address = 0;
3633         target_addr_t max_address = -1;
3634         struct image image;
3635
3636         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3637                         &image, &min_address, &max_address);
3638         if (ERROR_OK != retval)
3639                 return retval;
3640
3641         struct target *target = get_current_target(CMD_CTX);
3642
3643         struct duration bench;
3644         duration_start(&bench);
3645
3646         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3647                 return ERROR_FAIL;
3648
3649         image_size = 0x0;
3650         retval = ERROR_OK;
3651         for (unsigned int i = 0; i < image.num_sections; i++) {
3652                 buffer = malloc(image.sections[i].size);
3653                 if (buffer == NULL) {
3654                         command_print(CMD,
3655                                                   "error allocating buffer for section (%d bytes)",
3656                                                   (int)(image.sections[i].size));
3657                         retval = ERROR_FAIL;
3658                         break;
3659                 }
3660
3661                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3662                 if (retval != ERROR_OK) {
3663                         free(buffer);
3664                         break;
3665                 }
3666
3667                 uint32_t offset = 0;
3668                 uint32_t length = buf_cnt;
3669
3670                 /* DANGER!!! beware of unsigned comparison here!!! */
3671
3672                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3673                                 (image.sections[i].base_address < max_address)) {
3674
3675                         if (image.sections[i].base_address < min_address) {
3676                                 /* clip addresses below */
3677                                 offset += min_address-image.sections[i].base_address;
3678                                 length -= offset;
3679                         }
3680
3681                         if (image.sections[i].base_address + buf_cnt > max_address)
3682                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3683
3684                         retval = target_write_buffer(target,
3685                                         image.sections[i].base_address + offset, length, buffer + offset);
3686                         if (retval != ERROR_OK) {
3687                                 free(buffer);
3688                                 break;
3689                         }
3690                         image_size += length;
3691                         command_print(CMD, "%u bytes written at address " TARGET_ADDR_FMT "",
3692                                         (unsigned int)length,
3693                                         image.sections[i].base_address + offset);
3694                 }
3695
3696                 free(buffer);
3697         }
3698
3699         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3700                 command_print(CMD, "downloaded %" PRIu32 " bytes "
3701                                 "in %fs (%0.3f KiB/s)", image_size,
3702                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3703         }
3704
3705         image_close(&image);
3706
3707         return retval;
3708
3709 }
3710
3711 COMMAND_HANDLER(handle_dump_image_command)
3712 {
3713         struct fileio *fileio;
3714         uint8_t *buffer;
3715         int retval, retvaltemp;
3716         target_addr_t address, size;
3717         struct duration bench;
3718         struct target *target = get_current_target(CMD_CTX);
3719
3720         if (CMD_ARGC != 3)
3721                 return ERROR_COMMAND_SYNTAX_ERROR;
3722
3723         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3724         COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3725
3726         uint32_t buf_size = (size > 4096) ? 4096 : size;
3727         buffer = malloc(buf_size);
3728         if (!buffer)
3729                 return ERROR_FAIL;
3730
3731         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3732         if (retval != ERROR_OK) {
3733                 free(buffer);
3734                 return retval;
3735         }
3736
3737         duration_start(&bench);
3738
3739         while (size > 0) {
3740                 size_t size_written;
3741                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3742                 retval = target_read_buffer(target, address, this_run_size, buffer);
3743                 if (retval != ERROR_OK)
3744                         break;
3745
3746                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3747                 if (retval != ERROR_OK)
3748                         break;
3749
3750                 size -= this_run_size;
3751                 address += this_run_size;
3752         }
3753
3754         free(buffer);
3755
3756         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3757                 size_t filesize;
3758                 retval = fileio_size(fileio, &filesize);
3759                 if (retval != ERROR_OK)
3760                         return retval;
3761                 command_print(CMD,
3762                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3763                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3764         }
3765
3766         retvaltemp = fileio_close(fileio);
3767         if (retvaltemp != ERROR_OK)
3768                 return retvaltemp;
3769
3770         return retval;
3771 }
3772
3773 enum verify_mode {
3774         IMAGE_TEST = 0,
3775         IMAGE_VERIFY = 1,
3776         IMAGE_CHECKSUM_ONLY = 2
3777 };
3778
3779 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3780 {
3781         uint8_t *buffer;
3782         size_t buf_cnt;
3783         uint32_t image_size;
3784         int retval;
3785         uint32_t checksum = 0;
3786         uint32_t mem_checksum = 0;
3787
3788         struct image image;
3789
3790         struct target *target = get_current_target(CMD_CTX);
3791
3792         if (CMD_ARGC < 1)
3793                 return ERROR_COMMAND_SYNTAX_ERROR;
3794
3795         if (!target) {
3796                 LOG_ERROR("no target selected");
3797                 return ERROR_FAIL;
3798         }
3799
3800         struct duration bench;
3801         duration_start(&bench);
3802
3803         if (CMD_ARGC >= 2) {
3804                 target_addr_t addr;
3805                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3806                 image.base_address = addr;
3807                 image.base_address_set = true;
3808         } else {
3809                 image.base_address_set = false;
3810                 image.base_address = 0x0;
3811         }
3812
3813         image.start_address_set = false;
3814
3815         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3816         if (retval != ERROR_OK)
3817                 return retval;
3818
3819         image_size = 0x0;
3820         int diffs = 0;
3821         retval = ERROR_OK;
3822         for (unsigned int i = 0; i < image.num_sections; i++) {
3823                 buffer = malloc(image.sections[i].size);
3824                 if (buffer == NULL) {
3825                         command_print(CMD,
3826                                         "error allocating buffer for section (%" PRIu32 " bytes)",
3827                                         image.sections[i].size);
3828                         break;
3829                 }
3830                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3831                 if (retval != ERROR_OK) {
3832                         free(buffer);
3833                         break;
3834                 }
3835
3836                 if (verify >= IMAGE_VERIFY) {
3837                         /* calculate checksum of image */
3838                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3839                         if (retval != ERROR_OK) {
3840                                 free(buffer);
3841                                 break;
3842                         }
3843
3844                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3845                         if (retval != ERROR_OK) {
3846                                 free(buffer);
3847                                 break;
3848                         }
3849                         if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3850                                 LOG_ERROR("checksum mismatch");
3851                                 free(buffer);
3852                                 retval = ERROR_FAIL;
3853                                 goto done;
3854                         }
3855                         if (checksum != mem_checksum) {
3856                                 /* failed crc checksum, fall back to a binary compare */
3857                                 uint8_t *data;
3858
3859                                 if (diffs == 0)
3860                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3861
3862                                 data = malloc(buf_cnt);
3863
3864                                 retval = target_read_buffer(target, image.sections[i].base_address, buf_cnt, data);
3865                                 if (retval == ERROR_OK) {
3866                                         uint32_t t;
3867                                         for (t = 0; t < buf_cnt; t++) {
3868                                                 if (data[t] != buffer[t]) {
3869                                                         command_print(CMD,
3870                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3871                                                                                   diffs,
3872                                                                                   (unsigned)(t + image.sections[i].base_address),
3873                                                                                   data[t],
3874                                                                                   buffer[t]);
3875                                                         if (diffs++ >= 127) {
3876                                                                 command_print(CMD, "More than 128 errors, the rest are not printed.");
3877                                                                 free(data);
3878                                                                 free(buffer);
3879                                                                 goto done;
3880                                                         }
3881                                                 }
3882                                                 keep_alive();
3883                                         }
3884                                 }
3885                                 free(data);
3886                         }
3887                 } else {
3888                         command_print(CMD, "address " TARGET_ADDR_FMT " length 0x%08zx",
3889                                                   image.sections[i].base_address,
3890                                                   buf_cnt);
3891                 }
3892
3893                 free(buffer);
3894                 image_size += buf_cnt;
3895         }
3896         if (diffs > 0)
3897                 command_print(CMD, "No more differences found.");
3898 done:
3899         if (diffs > 0)
3900                 retval = ERROR_FAIL;
3901         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3902                 command_print(CMD, "verified %" PRIu32 " bytes "
3903                                 "in %fs (%0.3f KiB/s)", image_size,
3904                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3905         }
3906
3907         image_close(&image);
3908
3909         return retval;
3910 }
3911
3912 COMMAND_HANDLER(handle_verify_image_checksum_command)
3913 {
3914         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3915 }
3916
3917 COMMAND_HANDLER(handle_verify_image_command)
3918 {
3919         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3920 }
3921
3922 COMMAND_HANDLER(handle_test_image_command)
3923 {
3924         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3925 }
3926
3927 static int handle_bp_command_list(struct command_invocation *cmd)
3928 {
3929         struct target *target = get_current_target(cmd->ctx);
3930         struct breakpoint *breakpoint = target->breakpoints;
3931         while (breakpoint) {
3932                 if (breakpoint->type == BKPT_SOFT) {
3933                         char *buf = buf_to_hex_str(breakpoint->orig_instr,
3934                                         breakpoint->length);
3935                         command_print(cmd, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3936                                         breakpoint->address,
3937                                         breakpoint->length,
3938                                         breakpoint->set, buf);
3939                         free(buf);
3940                 } else {
3941                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3942                                 command_print(cmd, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3943                                                         breakpoint->asid,
3944                                                         breakpoint->length, breakpoint->set);
3945                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3946                                 command_print(cmd, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3947                                                         breakpoint->address,
3948                                                         breakpoint->length, breakpoint->set);
3949                                 command_print(cmd, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3950                                                         breakpoint->asid);
3951                         } else
3952                                 command_print(cmd, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3953                                                         breakpoint->address,
3954                                                         breakpoint->length, breakpoint->set);
3955                 }
3956
3957                 breakpoint = breakpoint->next;
3958         }
3959         return ERROR_OK;
3960 }
3961
3962 static int handle_bp_command_set(struct command_invocation *cmd,
3963                 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3964 {
3965         struct target *target = get_current_target(cmd->ctx);
3966         int retval;
3967
3968         if (asid == 0) {
3969                 retval = breakpoint_add(target, addr, length, hw);
3970                 /* error is always logged in breakpoint_add(), do not print it again */
3971                 if (ERROR_OK == retval)
3972                         command_print(cmd, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3973
3974         } else if (addr == 0) {
3975                 if (target->type->add_context_breakpoint == NULL) {
3976                         LOG_ERROR("Context breakpoint not available");
3977                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
3978                 }
3979                 retval = context_breakpoint_add(target, asid, length, hw);
3980                 /* error is always logged in context_breakpoint_add(), do not print it again */
3981                 if (ERROR_OK == retval)
3982                         command_print(cmd, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3983
3984         } else {
3985                 if (target->type->add_hybrid_breakpoint == NULL) {
3986                         LOG_ERROR("Hybrid breakpoint not available");
3987                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
3988                 }
3989                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3990                 /* error is always logged in hybrid_breakpoint_add(), do not print it again */
3991                 if (ERROR_OK == retval)
3992                         command_print(cmd, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3993         }
3994         return retval;
3995 }
3996
3997 COMMAND_HANDLER(handle_bp_command)
3998 {
3999         target_addr_t addr;
4000         uint32_t asid;
4001         uint32_t length;
4002         int hw = BKPT_SOFT;
4003
4004         switch (CMD_ARGC) {
4005                 case 0:
4006                         return handle_bp_command_list(CMD);
4007
4008                 case 2:
4009                         asid = 0;
4010                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4011                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
4012                         return handle_bp_command_set(CMD, addr, asid, length, hw);
4013
4014                 case 3:
4015                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
4016                                 hw = BKPT_HARD;
4017                                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4018                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
4019                                 asid = 0;
4020                                 return handle_bp_command_set(CMD, addr, asid, length, hw);
4021                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
4022                                 hw = BKPT_HARD;
4023                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
4024                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
4025                                 addr = 0;
4026                                 return handle_bp_command_set(CMD, addr, asid, length, hw);
4027                         }
4028                         /* fallthrough */
4029                 case 4:
4030                         hw = BKPT_HARD;
4031                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4032                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
4033                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
4034                         return handle_bp_command_set(CMD, addr, asid, length, hw);
4035
4036                 default:
4037                         return ERROR_COMMAND_SYNTAX_ERROR;
4038         }
4039 }
4040
4041 COMMAND_HANDLER(handle_rbp_command)
4042 {
4043         if (CMD_ARGC != 1)
4044                 return ERROR_COMMAND_SYNTAX_ERROR;
4045
4046         struct target *target = get_current_target(CMD_CTX);
4047
4048         if (!strcmp(CMD_ARGV[0], "all")) {
4049                 breakpoint_remove_all(target);
4050         } else {
4051                 target_addr_t addr;
4052                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4053
4054                 breakpoint_remove(target, addr);
4055         }
4056
4057         return ERROR_OK;
4058 }
4059
4060 COMMAND_HANDLER(handle_wp_command)
4061 {
4062         struct target *target = get_current_target(CMD_CTX);
4063
4064         if (CMD_ARGC == 0) {
4065                 struct watchpoint *watchpoint = target->watchpoints;
4066
4067                 while (watchpoint) {
4068                         command_print(CMD, "address: " TARGET_ADDR_FMT
4069                                         ", len: 0x%8.8" PRIx32
4070                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
4071                                         ", mask: 0x%8.8" PRIx32,
4072                                         watchpoint->address,
4073                                         watchpoint->length,
4074                                         (int)watchpoint->rw,
4075                                         watchpoint->value,
4076                                         watchpoint->mask);
4077                         watchpoint = watchpoint->next;
4078                 }
4079                 return ERROR_OK;
4080         }
4081
4082         enum watchpoint_rw type = WPT_ACCESS;
4083         target_addr_t addr = 0;
4084         uint32_t length = 0;
4085         uint32_t data_value = 0x0;
4086         uint32_t data_mask = 0xffffffff;
4087
4088         switch (CMD_ARGC) {
4089         case 5:
4090                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
4091                 /* fall through */
4092         case 4:
4093                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
4094                 /* fall through */
4095         case 3:
4096                 switch (CMD_ARGV[2][0]) {
4097                 case 'r':
4098                         type = WPT_READ;
4099                         break;
4100                 case 'w':
4101                         type = WPT_WRITE;
4102                         break;
4103                 case 'a':
4104                         type = WPT_ACCESS;
4105                         break;
4106                 default:
4107                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
4108                         return ERROR_COMMAND_SYNTAX_ERROR;
4109                 }
4110                 /* fall through */
4111         case 2:
4112                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
4113                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4114                 break;
4115
4116         default:
4117                 return ERROR_COMMAND_SYNTAX_ERROR;
4118         }
4119
4120         int retval = watchpoint_add(target, addr, length, type,
4121                         data_value, data_mask);
4122         if (ERROR_OK != retval)
4123                 LOG_ERROR("Failure setting watchpoints");
4124
4125         return retval;
4126 }
4127
4128 COMMAND_HANDLER(handle_rwp_command)
4129 {
4130         if (CMD_ARGC != 1)
4131                 return ERROR_COMMAND_SYNTAX_ERROR;
4132
4133         target_addr_t addr;
4134         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
4135
4136         struct target *target = get_current_target(CMD_CTX);
4137         watchpoint_remove(target, addr);
4138
4139         return ERROR_OK;
4140 }
4141
4142 /**
4143  * Translate a virtual address to a physical address.
4144  *
4145  * The low-level target implementation must have logged a detailed error
4146  * which is forwarded to telnet/GDB session.
4147  */
4148 COMMAND_HANDLER(handle_virt2phys_command)
4149 {
4150         if (CMD_ARGC != 1)
4151                 return ERROR_COMMAND_SYNTAX_ERROR;
4152
4153         target_addr_t va;
4154         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], va);
4155         target_addr_t pa;
4156
4157         struct target *target = get_current_target(CMD_CTX);
4158         int retval = target->type->virt2phys(target, va, &pa);
4159         if (retval == ERROR_OK)
4160                 command_print(CMD, "Physical address " TARGET_ADDR_FMT "", pa);
4161
4162         return retval;
4163 }
4164
4165 static void writeData(FILE *f, const void *data, size_t len)
4166 {
4167         size_t written = fwrite(data, 1, len, f);
4168         if (written != len)
4169                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
4170 }
4171
4172 static void writeLong(FILE *f, int l, struct target *target)
4173 {
4174         uint8_t val[4];
4175
4176         target_buffer_set_u32(target, val, l);
4177         writeData(f, val, 4);
4178 }
4179
4180 static void writeString(FILE *f, char *s)
4181 {
4182         writeData(f, s, strlen(s));
4183 }
4184
4185 typedef unsigned char UNIT[2];  /* unit of profiling */
4186
4187 /* Dump a gmon.out histogram file. */
4188 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
4189                         uint32_t start_address, uint32_t end_address, struct target *target, uint32_t duration_ms)
4190 {
4191         uint32_t i;
4192         FILE *f = fopen(filename, "w");
4193         if (f == NULL)
4194                 return;
4195         writeString(f, "gmon");
4196         writeLong(f, 0x00000001, target); /* Version */
4197         writeLong(f, 0, target); /* padding */
4198         writeLong(f, 0, target); /* padding */
4199         writeLong(f, 0, target); /* padding */
4200
4201         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
4202         writeData(f, &zero, 1);
4203
4204         /* figure out bucket size */
4205         uint32_t min;
4206         uint32_t max;
4207         if (with_range) {
4208                 min = start_address;
4209                 max = end_address;
4210         } else {
4211                 min = samples[0];
4212                 max = samples[0];
4213                 for (i = 0; i < sampleNum; i++) {
4214                         if (min > samples[i])
4215                                 min = samples[i];
4216                         if (max < samples[i])
4217                                 max = samples[i];
4218                 }
4219
4220                 /* max should be (largest sample + 1)
4221                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
4222                 max++;
4223         }
4224
4225         int addressSpace = max - min;
4226         assert(addressSpace >= 2);
4227
4228         /* FIXME: What is the reasonable number of buckets?
4229          * The profiling result will be more accurate if there are enough buckets. */
4230         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
4231         uint32_t numBuckets = addressSpace / sizeof(UNIT);
4232         if (numBuckets > maxBuckets)
4233                 numBuckets = maxBuckets;
4234         int *buckets = malloc(sizeof(int) * numBuckets);
4235         if (buckets == NULL) {
4236                 fclose(f);
4237                 return;
4238         }
4239         memset(buckets, 0, sizeof(int) * numBuckets);
4240         for (i = 0; i < sampleNum; i++) {
4241                 uint32_t address = samples[i];
4242
4243                 if ((address < min) || (max <= address))
4244                         continue;
4245
4246                 long long a = address - min;
4247                 long long b = numBuckets;
4248                 long long c = addressSpace;
4249                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
4250                 buckets[index_t]++;
4251         }
4252
4253         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
4254         writeLong(f, min, target);                      /* low_pc */
4255         writeLong(f, max, target);                      /* high_pc */
4256         writeLong(f, numBuckets, target);       /* # of buckets */
4257         float sample_rate = sampleNum / (duration_ms / 1000.0);
4258         writeLong(f, sample_rate, target);
4259         writeString(f, "seconds");
4260         for (i = 0; i < (15-strlen("seconds")); i++)
4261                 writeData(f, &zero, 1);
4262         writeString(f, "s");
4263
4264         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
4265
4266         char *data = malloc(2 * numBuckets);
4267         if (data != NULL) {
4268                 for (i = 0; i < numBuckets; i++) {
4269                         int val;
4270                         val = buckets[i];
4271                         if (val > 65535)
4272                                 val = 65535;
4273                         data[i * 2] = val&0xff;
4274                         data[i * 2 + 1] = (val >> 8) & 0xff;
4275                 }
4276                 free(buckets);
4277                 writeData(f, data, numBuckets * 2);
4278                 free(data);
4279         } else
4280                 free(buckets);
4281
4282         fclose(f);
4283 }
4284
4285 /* profiling samples the CPU PC as quickly as OpenOCD is able,
4286  * which will be used as a random sampling of PC */
4287 COMMAND_HANDLER(handle_profile_command)
4288 {
4289         struct target *target = get_current_target(CMD_CTX);
4290
4291         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
4292                 return ERROR_COMMAND_SYNTAX_ERROR;
4293
4294         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
4295         uint32_t offset;
4296         uint32_t num_of_samples;
4297         int retval = ERROR_OK;
4298         bool halted_before_profiling = target->state == TARGET_HALTED;
4299
4300         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
4301
4302         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
4303         if (samples == NULL) {
4304                 LOG_ERROR("No memory to store samples.");
4305                 return ERROR_FAIL;
4306         }
4307
4308         uint64_t timestart_ms = timeval_ms();
4309         /**
4310          * Some cores let us sample the PC without the
4311          * annoying halt/resume step; for example, ARMv7 PCSR.
4312          * Provide a way to use that more efficient mechanism.
4313          */
4314         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
4315                                 &num_of_samples, offset);
4316         if (retval != ERROR_OK) {
4317                 free(samples);
4318                 return retval;
4319         }
4320         uint32_t duration_ms = timeval_ms() - timestart_ms;
4321
4322         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
4323
4324         retval = target_poll(target);
4325         if (retval != ERROR_OK) {
4326                 free(samples);
4327                 return retval;
4328         }
4329
4330         if (target->state == TARGET_RUNNING && halted_before_profiling) {
4331                 /* The target was halted before we started and is running now. Halt it,
4332                  * for consistency. */
4333                 retval = target_halt(target);
4334                 if (retval != ERROR_OK) {
4335                         free(samples);
4336                         return retval;
4337                 }
4338         } else if (target->state == TARGET_HALTED && !halted_before_profiling) {
4339                 /* The target was running before we started and is halted now. Resume
4340                  * it, for consistency. */
4341                 retval = target_resume(target, 1, 0, 0, 0);
4342                 if (retval != ERROR_OK) {
4343                         free(samples);
4344                         return retval;
4345                 }
4346         }
4347
4348         retval = target_poll(target);
4349         if (retval != ERROR_OK) {
4350                 free(samples);
4351                 return retval;
4352         }
4353
4354         uint32_t start_address = 0;
4355         uint32_t end_address = 0;
4356         bool with_range = false;
4357         if (CMD_ARGC == 4) {
4358                 with_range = true;
4359                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
4360                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
4361         }
4362
4363         write_gmon(samples, num_of_samples, CMD_ARGV[1],
4364                    with_range, start_address, end_address, target, duration_ms);
4365         command_print(CMD, "Wrote %s", CMD_ARGV[1]);
4366
4367         free(samples);
4368         return retval;
4369 }
4370
4371 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
4372 {
4373         char *namebuf;
4374         Jim_Obj *nameObjPtr, *valObjPtr;
4375         int result;
4376
4377         namebuf = alloc_printf("%s(%d)", varname, idx);
4378         if (!namebuf)
4379                 return JIM_ERR;
4380
4381         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4382         valObjPtr = Jim_NewIntObj(interp, val);
4383         if (!nameObjPtr || !valObjPtr) {
4384                 free(namebuf);
4385                 return JIM_ERR;
4386         }
4387
4388         Jim_IncrRefCount(nameObjPtr);
4389         Jim_IncrRefCount(valObjPtr);
4390         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
4391         Jim_DecrRefCount(interp, nameObjPtr);
4392         Jim_DecrRefCount(interp, valObjPtr);
4393         free(namebuf);
4394         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
4395         return result;
4396 }
4397
4398 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4399 {
4400         struct command_context *context;
4401         struct target *target;
4402
4403         context = current_command_context(interp);
4404         assert(context != NULL);
4405
4406         target = get_current_target(context);
4407         if (target == NULL) {
4408                 LOG_ERROR("mem2array: no current target");
4409                 return JIM_ERR;
4410         }
4411
4412         return target_mem2array(interp, target, argc - 1, argv + 1);
4413 }
4414
4415 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
4416 {
4417         long l;
4418         uint32_t width;
4419         int len;
4420         uint32_t addr;
4421         uint32_t count;
4422         uint32_t v;
4423         const char *varname;
4424         const char *phys;
4425         bool is_phys;
4426         int  n, e, retval;
4427         uint32_t i;
4428
4429         /* argv[1] = name of array to receive the data
4430          * argv[2] = desired width
4431          * argv[3] = memory address
4432          * argv[4] = count of times to read
4433          */
4434
4435         if (argc < 4 || argc > 5) {
4436                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4437                 return JIM_ERR;
4438         }
4439         varname = Jim_GetString(argv[0], &len);
4440         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4441
4442         e = Jim_GetLong(interp, argv[1], &l);
4443         width = l;
4444         if (e != JIM_OK)
4445                 return e;
4446
4447         e = Jim_GetLong(interp, argv[2], &l);
4448         addr = l;
4449         if (e != JIM_OK)
4450                 return e;
4451         e = Jim_GetLong(interp, argv[3], &l);
4452         len = l;
4453         if (e != JIM_OK)
4454                 return e;
4455         is_phys = false;
4456         if (argc > 4) {
4457                 phys = Jim_GetString(argv[4], &n);
4458                 if (!strncmp(phys, "phys", n))
4459                         is_phys = true;
4460                 else
4461                         return JIM_ERR;
4462         }
4463         switch (width) {
4464                 case 8:
4465                         width = 1;
4466                         break;
4467                 case 16:
4468                         width = 2;
4469                         break;
4470                 case 32:
4471                         width = 4;
4472                         break;
4473                 default:
4474                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4475                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
4476                         return JIM_ERR;
4477         }
4478         if (len == 0) {
4479                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4480                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
4481                 return JIM_ERR;
4482         }
4483         if ((addr + (len * width)) < addr) {
4484                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4485                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
4486                 return JIM_ERR;
4487         }
4488         /* absurd transfer size? */
4489         if (len > 65536) {
4490                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4491                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
4492                 return JIM_ERR;
4493         }
4494
4495         if ((width == 1) ||
4496                 ((width == 2) && ((addr & 1) == 0)) ||
4497                 ((width == 4) && ((addr & 3) == 0))) {
4498                 /* all is well */
4499         } else {
4500                 char buf[100];
4501                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4502                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRIu32 " byte reads",
4503                                 addr,
4504                                 width);
4505                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4506                 return JIM_ERR;
4507         }
4508
4509         /* Transfer loop */
4510
4511         /* index counter */
4512         n = 0;
4513
4514         size_t buffersize = 4096;
4515         uint8_t *buffer = malloc(buffersize);
4516         if (buffer == NULL)
4517                 return JIM_ERR;
4518
4519         /* assume ok */
4520         e = JIM_OK;
4521         while (len) {
4522                 /* Slurp... in buffer size chunks */
4523
4524                 count = len; /* in objects.. */
4525                 if (count > (buffersize / width))
4526                         count = (buffersize / width);
4527
4528                 if (is_phys)
4529                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4530                 else
4531                         retval = target_read_memory(target, addr, width, count, buffer);
4532                 if (retval != ERROR_OK) {
4533                         /* BOO !*/
4534                         LOG_ERROR("mem2array: Read @ 0x%08" PRIx32 ", w=%" PRIu32 ", cnt=%" PRIu32 ", failed",
4535                                           addr,
4536                                           width,
4537                                           count);
4538                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4539                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4540                         e = JIM_ERR;
4541                         break;
4542                 } else {
4543                         v = 0; /* shut up gcc */
4544                         for (i = 0; i < count ; i++, n++) {
4545                                 switch (width) {
4546                                         case 4:
4547                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4548                                                 break;
4549                                         case 2:
4550                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4551                                                 break;
4552                                         case 1:
4553                                                 v = buffer[i] & 0x0ff;
4554                                                 break;
4555                                 }
4556                                 new_int_array_element(interp, varname, n, v);
4557                         }
4558                         len -= count;
4559                         addr += count * width;
4560                 }
4561         }
4562
4563         free(buffer);
4564
4565         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4566
4567         return e;
4568 }
4569
4570 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4571 {
4572         char *namebuf;
4573         Jim_Obj *nameObjPtr, *valObjPtr;
4574         int result;
4575         long l;
4576
4577         namebuf = alloc_printf("%s(%d)", varname, idx);
4578         if (!namebuf)
4579                 return JIM_ERR;
4580
4581         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4582         if (!nameObjPtr) {
4583                 free(namebuf);
4584                 return JIM_ERR;
4585         }
4586
4587         Jim_IncrRefCount(nameObjPtr);
4588         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4589         Jim_DecrRefCount(interp, nameObjPtr);
4590         free(namebuf);
4591         if (valObjPtr == NULL)
4592                 return JIM_ERR;
4593
4594         result = Jim_GetLong(interp, valObjPtr, &l);
4595         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4596         *val = l;
4597         return result;
4598 }
4599
4600 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4601 {
4602         struct command_context *context;
4603         struct target *target;
4604
4605         context = current_command_context(interp);
4606         assert(context != NULL);
4607
4608         target = get_current_target(context);
4609         if (target == NULL) {
4610                 LOG_ERROR("array2mem: no current target");
4611                 return JIM_ERR;
4612         }
4613
4614         return target_array2mem(interp, target, argc-1, argv + 1);
4615 }
4616
4617 static int target_array2mem(Jim_Interp *interp, struct target *target,
4618                 int argc, Jim_Obj *const *argv)
4619 {
4620         long l;
4621         uint32_t width;
4622         int len;
4623         uint32_t addr;
4624         uint32_t count;
4625         uint32_t v;
4626         const char *varname;
4627         const char *phys;
4628         bool is_phys;
4629         int  n, e, retval;
4630         uint32_t i;
4631
4632         /* argv[1] = name of array to get the data
4633          * argv[2] = desired width
4634          * argv[3] = memory address
4635          * argv[4] = count to write
4636          */
4637         if (argc < 4 || argc > 5) {
4638                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4639                 return JIM_ERR;
4640         }
4641         varname = Jim_GetString(argv[0], &len);
4642         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4643
4644         e = Jim_GetLong(interp, argv[1], &l);
4645         width = l;
4646         if (e != JIM_OK)
4647                 return e;
4648
4649         e = Jim_GetLong(interp, argv[2], &l);
4650         addr = l;
4651         if (e != JIM_OK)
4652                 return e;
4653         e = Jim_GetLong(interp, argv[3], &l);
4654         len = l;
4655         if (e != JIM_OK)
4656                 return e;
4657         is_phys = false;
4658         if (argc > 4) {
4659                 phys = Jim_GetString(argv[4], &n);
4660                 if (!strncmp(phys, "phys", n))
4661                         is_phys = true;
4662                 else
4663                         return JIM_ERR;
4664         }
4665         switch (width) {
4666                 case 8:
4667                         width = 1;
4668                         break;
4669                 case 16:
4670                         width = 2;
4671                         break;
4672                 case 32:
4673                         width = 4;
4674                         break;
4675                 default:
4676                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4677                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4678                                         "Invalid width param, must be 8/16/32", NULL);
4679                         return JIM_ERR;
4680         }
4681         if (len == 0) {
4682                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4683                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4684                                 "array2mem: zero width read?", NULL);
4685                 return JIM_ERR;
4686         }
4687         if ((addr + (len * width)) < addr) {
4688                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4689                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4690                                 "array2mem: addr + len - wraps to zero?", NULL);
4691                 return JIM_ERR;
4692         }
4693         /* absurd transfer size? */
4694         if (len > 65536) {
4695                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4696                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4697                                 "array2mem: absurd > 64K item request", NULL);
4698                 return JIM_ERR;
4699         }
4700
4701         if ((width == 1) ||
4702                 ((width == 2) && ((addr & 1) == 0)) ||
4703                 ((width == 4) && ((addr & 3) == 0))) {
4704                 /* all is well */
4705         } else {
4706                 char buf[100];
4707                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4708                 sprintf(buf, "array2mem address: 0x%08" PRIx32 " is not aligned for %" PRIu32 " byte reads",
4709                                 addr,
4710                                 width);
4711                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4712                 return JIM_ERR;
4713         }
4714
4715         /* Transfer loop */
4716
4717         /* index counter */
4718         n = 0;
4719         /* assume ok */
4720         e = JIM_OK;
4721
4722         size_t buffersize = 4096;
4723         uint8_t *buffer = malloc(buffersize);
4724         if (buffer == NULL)
4725                 return JIM_ERR;
4726
4727         while (len) {
4728                 /* Slurp... in buffer size chunks */
4729
4730                 count = len; /* in objects.. */
4731                 if (count > (buffersize / width))
4732                         count = (buffersize / width);
4733
4734                 v = 0; /* shut up gcc */
4735                 for (i = 0; i < count; i++, n++) {
4736                         get_int_array_element(interp, varname, n, &v);
4737                         switch (width) {
4738                         case 4:
4739                                 target_buffer_set_u32(target, &buffer[i * width], v);
4740                                 break;
4741                         case 2:
4742                                 target_buffer_set_u16(target, &buffer[i * width], v);
4743                                 break;
4744                         case 1:
4745                                 buffer[i] = v & 0x0ff;
4746                                 break;
4747                         }
4748                 }
4749                 len -= count;
4750
4751                 if (is_phys)
4752                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4753                 else
4754                         retval = target_write_memory(target, addr, width, count, buffer);
4755                 if (retval != ERROR_OK) {
4756                         /* BOO !*/
4757                         LOG_ERROR("array2mem: Write @ 0x%08" PRIx32 ", w=%" PRIu32 ", cnt=%" PRIu32 ", failed",
4758                                           addr,
4759                                           width,
4760                                           count);
4761                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4762                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4763                         e = JIM_ERR;
4764                         break;
4765                 }
4766                 addr += count * width;
4767         }
4768
4769         free(buffer);
4770
4771         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4772
4773         return e;
4774 }
4775
4776 /* FIX? should we propagate errors here rather than printing them
4777  * and continuing?
4778  */
4779 void target_handle_event(struct target *target, enum target_event e)
4780 {
4781         struct target_event_action *teap;
4782         int retval;
4783
4784         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4785                 if (teap->event == e) {
4786                         LOG_DEBUG("target(%d): %s (%s) event: %d (%s) action: %s",
4787                                            target->target_number,
4788                                            target_name(target),
4789                                            target_type_name(target),
4790                                            e,
4791                                            jim_nvp_value2name_simple(nvp_target_event, e)->name,
4792                                            Jim_GetString(teap->body, NULL));
4793
4794                         /* Override current target by the target an event
4795                          * is issued from (lot of scripts need it).
4796                          * Return back to previous override as soon
4797                          * as the handler processing is done */
4798                         struct command_context *cmd_ctx = current_command_context(teap->interp);
4799                         struct target *saved_target_override = cmd_ctx->current_target_override;
4800                         cmd_ctx->current_target_override = target;
4801
4802                         retval = Jim_EvalObj(teap->interp, teap->body);
4803
4804                         cmd_ctx->current_target_override = saved_target_override;
4805
4806                         if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
4807                                 return;
4808
4809                         if (retval == JIM_RETURN)
4810                                 retval = teap->interp->returnCode;
4811
4812                         if (retval != JIM_OK) {
4813                                 Jim_MakeErrorMessage(teap->interp);
4814                                 LOG_USER("Error executing event %s on target %s:\n%s",
4815                                                   jim_nvp_value2name_simple(nvp_target_event, e)->name,
4816                                                   target_name(target),
4817                                                   Jim_GetString(Jim_GetResult(teap->interp), NULL));
4818                                 /* clean both error code and stacktrace before return */
4819                                 Jim_Eval(teap->interp, "error \"\" \"\"");
4820                         }
4821                 }
4822         }
4823 }
4824
4825 /**
4826  * Returns true only if the target has a handler for the specified event.
4827  */
4828 bool target_has_event_action(struct target *target, enum target_event event)
4829 {
4830         struct target_event_action *teap;
4831
4832         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4833                 if (teap->event == event)
4834                         return true;
4835         }
4836         return false;
4837 }
4838
4839 enum target_cfg_param {
4840         TCFG_TYPE,
4841         TCFG_EVENT,
4842         TCFG_WORK_AREA_VIRT,
4843         TCFG_WORK_AREA_PHYS,
4844         TCFG_WORK_AREA_SIZE,
4845         TCFG_WORK_AREA_BACKUP,
4846         TCFG_ENDIAN,
4847         TCFG_COREID,
4848         TCFG_CHAIN_POSITION,
4849         TCFG_DBGBASE,
4850         TCFG_RTOS,
4851         TCFG_DEFER_EXAMINE,
4852         TCFG_GDB_PORT,
4853         TCFG_GDB_MAX_CONNECTIONS,
4854 };
4855
4856 static struct jim_nvp nvp_config_opts[] = {
4857         { .name = "-type",             .value = TCFG_TYPE },
4858         { .name = "-event",            .value = TCFG_EVENT },
4859         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4860         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4861         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4862         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4863         { .name = "-endian",           .value = TCFG_ENDIAN },
4864         { .name = "-coreid",           .value = TCFG_COREID },
4865         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4866         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4867         { .name = "-rtos",             .value = TCFG_RTOS },
4868         { .name = "-defer-examine",    .value = TCFG_DEFER_EXAMINE },
4869         { .name = "-gdb-port",         .value = TCFG_GDB_PORT },
4870         { .name = "-gdb-max-connections",   .value = TCFG_GDB_MAX_CONNECTIONS },
4871         { .name = NULL, .value = -1 }
4872 };
4873
4874 static int target_configure(struct jim_getopt_info *goi, struct target *target)
4875 {
4876         struct jim_nvp *n;
4877         Jim_Obj *o;
4878         jim_wide w;
4879         int e;
4880
4881         /* parse config or cget options ... */
4882         while (goi->argc > 0) {
4883                 Jim_SetEmptyResult(goi->interp);
4884                 /* jim_getopt_debug(goi); */
4885
4886                 if (target->type->target_jim_configure) {
4887                         /* target defines a configure function */
4888                         /* target gets first dibs on parameters */
4889                         e = (*(target->type->target_jim_configure))(target, goi);
4890                         if (e == JIM_OK) {
4891                                 /* more? */
4892                                 continue;
4893                         }
4894                         if (e == JIM_ERR) {
4895                                 /* An error */
4896                                 return e;
4897                         }
4898                         /* otherwise we 'continue' below */
4899                 }
4900                 e = jim_getopt_nvp(goi, nvp_config_opts, &n);
4901                 if (e != JIM_OK) {
4902                         jim_getopt_nvp_unknown(goi, nvp_config_opts, 0);
4903                         return e;
4904                 }
4905                 switch (n->value) {
4906                 case TCFG_TYPE:
4907                         /* not settable */
4908                         if (goi->isconfigure) {
4909                                 Jim_SetResultFormatted(goi->interp,
4910                                                 "not settable: %s", n->name);
4911                                 return JIM_ERR;
4912                         } else {
4913 no_params:
4914                                 if (goi->argc != 0) {
4915                                         Jim_WrongNumArgs(goi->interp,
4916                                                         goi->argc, goi->argv,
4917                                                         "NO PARAMS");
4918                                         return JIM_ERR;
4919                                 }
4920                         }
4921                         Jim_SetResultString(goi->interp,
4922                                         target_type_name(target), -1);
4923                         /* loop for more */
4924                         break;
4925                 case TCFG_EVENT:
4926                         if (goi->argc == 0) {
4927                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4928                                 return JIM_ERR;
4929                         }
4930
4931                         e = jim_getopt_nvp(goi, nvp_target_event, &n);
4932                         if (e != JIM_OK) {
4933                                 jim_getopt_nvp_unknown(goi, nvp_target_event, 1);
4934                                 return e;
4935                         }
4936
4937                         if (goi->isconfigure) {
4938                                 if (goi->argc != 1) {
4939                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4940                                         return JIM_ERR;
4941                                 }
4942                         } else {
4943                                 if (goi->argc != 0) {
4944                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4945                                         return JIM_ERR;
4946                                 }
4947                         }
4948
4949                         {
4950                                 struct target_event_action *teap;
4951
4952                                 teap = target->event_action;
4953                                 /* replace existing? */
4954                                 while (teap) {
4955                                         if (teap->event == (enum target_event)n->value)
4956                                                 break;
4957                                         teap = teap->next;
4958                                 }
4959
4960                                 if (goi->isconfigure) {
4961                                         /* START_DEPRECATED_TPIU */
4962                                         if (n->value == TARGET_EVENT_TRACE_CONFIG)
4963                                                 LOG_INFO("DEPRECATED target event %s", n->name);
4964                                         /* END_DEPRECATED_TPIU */
4965
4966                                         bool replace = true;
4967                                         if (teap == NULL) {
4968                                                 /* create new */
4969                                                 teap = calloc(1, sizeof(*teap));
4970                                                 replace = false;
4971                                         }
4972                                         teap->event = n->value;
4973                                         teap->interp = goi->interp;
4974                                         jim_getopt_obj(goi, &o);
4975                                         if (teap->body)
4976                                                 Jim_DecrRefCount(teap->interp, teap->body);
4977                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4978                                         /*
4979                                          * FIXME:
4980                                          *     Tcl/TK - "tk events" have a nice feature.
4981                                          *     See the "BIND" command.
4982                                          *    We should support that here.
4983                                          *     You can specify %X and %Y in the event code.
4984                                          *     The idea is: %T - target name.
4985                                          *     The idea is: %N - target number
4986                                          *     The idea is: %E - event name.
4987                                          */
4988                                         Jim_IncrRefCount(teap->body);
4989
4990                                         if (!replace) {
4991                                                 /* add to head of event list */
4992                                                 teap->next = target->event_action;
4993                                                 target->event_action = teap;
4994                                         }
4995                                         Jim_SetEmptyResult(goi->interp);
4996                                 } else {
4997                                         /* get */
4998                                         if (teap == NULL)
4999                                                 Jim_SetEmptyResult(goi->interp);
5000                                         else
5001                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
5002                                 }
5003                         }
5004                         /* loop for more */
5005                         break;
5006
5007                 case TCFG_WORK_AREA_VIRT:
5008                         if (goi->isconfigure) {
5009                                 target_free_all_working_areas(target);
5010                                 e = jim_getopt_wide(goi, &w);
5011                                 if (e != JIM_OK)
5012                                         return e;
5013                                 target->working_area_virt = w;
5014                                 target->working_area_virt_spec = true;
5015                         } else {
5016                                 if (goi->argc != 0)
5017                                         goto no_params;
5018                         }
5019                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
5020                         /* loop for more */
5021                         break;
5022
5023                 case TCFG_WORK_AREA_PHYS:
5024                         if (goi->isconfigure) {
5025                                 target_free_all_working_areas(target);
5026                                 e = jim_getopt_wide(goi, &w);
5027                                 if (e != JIM_OK)
5028                                         return e;
5029                                 target->working_area_phys = w;
5030                                 target->working_area_phys_spec = true;
5031                         } else {
5032                                 if (goi->argc != 0)
5033                                         goto no_params;
5034                         }
5035                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
5036                         /* loop for more */
5037                         break;
5038
5039                 case TCFG_WORK_AREA_SIZE:
5040                         if (goi->isconfigure) {
5041                                 target_free_all_working_areas(target);
5042                                 e = jim_getopt_wide(goi, &w);
5043                                 if (e != JIM_OK)
5044                                         return e;
5045                                 target->working_area_size = w;
5046                         } else {
5047                                 if (goi->argc != 0)
5048                                         goto no_params;
5049                         }
5050                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
5051                         /* loop for more */
5052                         break;
5053
5054                 case TCFG_WORK_AREA_BACKUP:
5055                         if (goi->isconfigure) {
5056                                 target_free_all_working_areas(target);
5057                                 e = jim_getopt_wide(goi, &w);
5058                                 if (e != JIM_OK)
5059                                         return e;
5060                                 /* make this exactly 1 or 0 */
5061                                 target->backup_working_area = (!!w);
5062                         } else {
5063                                 if (goi->argc != 0)
5064                                         goto no_params;
5065                         }
5066                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
5067                         /* loop for more e*/
5068                         break;
5069
5070
5071                 case TCFG_ENDIAN:
5072                         if (goi->isconfigure) {
5073                                 e = jim_getopt_nvp(goi, nvp_target_endian, &n);
5074                                 if (e != JIM_OK) {
5075                                         jim_getopt_nvp_unknown(goi, nvp_target_endian, 1);
5076                                         return e;
5077                                 }
5078                                 target->endianness = n->value;
5079                         } else {
5080                                 if (goi->argc != 0)
5081                                         goto no_params;
5082                         }
5083                         n = jim_nvp_value2name_simple(nvp_target_endian, target->endianness);
5084                         if (n->name == NULL) {
5085                                 target->endianness = TARGET_LITTLE_ENDIAN;
5086                                 n = jim_nvp_value2name_simple(nvp_target_endian, target->endianness);
5087                         }
5088                         Jim_SetResultString(goi->interp, n->name, -1);
5089                         /* loop for more */
5090                         break;
5091
5092                 case TCFG_COREID:
5093                         if (goi->isconfigure) {
5094                                 e = jim_getopt_wide(goi, &w);
5095                                 if (e != JIM_OK)
5096                                         return e;
5097                                 target->coreid = (int32_t)w;
5098                         } else {
5099                                 if (goi->argc != 0)
5100                                         goto no_params;
5101                         }
5102                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->coreid));
5103                         /* loop for more */
5104                         break;
5105
5106                 case TCFG_CHAIN_POSITION:
5107                         if (goi->isconfigure) {
5108                                 Jim_Obj *o_t;
5109                                 struct jtag_tap *tap;
5110
5111                                 if (target->has_dap) {
5112                                         Jim_SetResultString(goi->interp,
5113                                                 "target requires -dap parameter instead of -chain-position!", -1);
5114                                         return JIM_ERR;
5115                                 }
5116
5117                                 target_free_all_working_areas(target);
5118                                 e = jim_getopt_obj(goi, &o_t);
5119                                 if (e != JIM_OK)
5120                                         return e;
5121                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
5122                                 if (tap == NULL)
5123                                         return JIM_ERR;
5124                                 target->tap = tap;
5125                                 target->tap_configured = true;
5126                         } else {
5127                                 if (goi->argc != 0)
5128                                         goto no_params;
5129                         }
5130                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
5131                         /* loop for more e*/
5132                         break;
5133                 case TCFG_DBGBASE:
5134                         if (goi->isconfigure) {
5135                                 e = jim_getopt_wide(goi, &w);
5136                                 if (e != JIM_OK)
5137                                         return e;
5138                                 target->dbgbase = (uint32_t)w;
5139                                 target->dbgbase_set = true;
5140                         } else {
5141                                 if (goi->argc != 0)
5142                                         goto no_params;
5143                         }
5144                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
5145                         /* loop for more */
5146                         break;
5147                 case TCFG_RTOS:
5148                         /* RTOS */
5149                         {
5150                                 int result = rtos_create(goi, target);
5151                                 if (result != JIM_OK)
5152                                         return result;
5153                         }
5154                         /* loop for more */
5155                         break;
5156
5157                 case TCFG_DEFER_EXAMINE:
5158                         /* DEFER_EXAMINE */
5159                         target->defer_examine = true;
5160                         /* loop for more */
5161                         break;
5162
5163                 case TCFG_GDB_PORT:
5164                         if (goi->isconfigure) {
5165                                 struct command_context *cmd_ctx = current_command_context(goi->interp);
5166                                 if (cmd_ctx->mode != COMMAND_CONFIG) {
5167                                         Jim_SetResultString(goi->interp, "-gdb-port must be configured before 'init'", -1);
5168                                         return JIM_ERR;
5169                                 }
5170
5171                                 const char *s;
5172                                 e = jim_getopt_string(goi, &s, NULL);
5173                                 if (e != JIM_OK)
5174                                         return e;
5175                                 free(target->gdb_port_override);
5176                                 target->gdb_port_override = strdup(s);
5177                         } else {
5178                                 if (goi->argc != 0)
5179                                         goto no_params;
5180                         }
5181                         Jim_SetResultString(goi->interp, target->gdb_port_override ? target->gdb_port_override : "undefined", -1);
5182                         /* loop for more */
5183                         break;
5184
5185                 case TCFG_GDB_MAX_CONNECTIONS:
5186                         if (goi->isconfigure) {
5187                                 struct command_context *cmd_ctx = current_command_context(goi->interp);
5188                                 if (cmd_ctx->mode != COMMAND_CONFIG) {
5189                                         Jim_SetResultString(goi->interp, "-gdb-max-connections must be configured before 'init'", -1);
5190                                         return JIM_ERR;
5191                                 }
5192
5193                                 e = jim_getopt_wide(goi, &w);
5194                                 if (e != JIM_OK)
5195                                         return e;
5196                                 target->gdb_max_connections = (w < 0) ? CONNECTION_LIMIT_UNLIMITED : (int)w;
5197                         } else {
5198                                 if (goi->argc != 0)
5199                                         goto no_params;
5200                         }
5201                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->gdb_max_connections));
5202                         break;
5203                 }
5204         } /* while (goi->argc) */
5205
5206
5207                 /* done - we return */
5208         return JIM_OK;
5209 }
5210
5211 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5212 {
5213         struct command *c = jim_to_command(interp);
5214         struct jim_getopt_info goi;
5215
5216         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
5217         goi.isconfigure = !strcmp(c->name, "configure");
5218         if (goi.argc < 1) {
5219                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5220                                  "missing: -option ...");
5221                 return JIM_ERR;
5222         }
5223         struct command_context *cmd_ctx = current_command_context(interp);
5224         assert(cmd_ctx);
5225         struct target *target = get_current_target(cmd_ctx);
5226         return target_configure(&goi, target);
5227 }
5228
5229 static int jim_target_mem2array(Jim_Interp *interp,
5230                 int argc, Jim_Obj *const *argv)
5231 {
5232         struct command_context *cmd_ctx = current_command_context(interp);
5233         assert(cmd_ctx);
5234         struct target *target = get_current_target(cmd_ctx);
5235         return target_mem2array(interp, target, argc - 1, argv + 1);
5236 }
5237
5238 static int jim_target_array2mem(Jim_Interp *interp,
5239                 int argc, Jim_Obj *const *argv)
5240 {
5241         struct command_context *cmd_ctx = current_command_context(interp);
5242         assert(cmd_ctx);
5243         struct target *target = get_current_target(cmd_ctx);
5244         return target_array2mem(interp, target, argc - 1, argv + 1);
5245 }
5246
5247 static int jim_target_tap_disabled(Jim_Interp *interp)
5248 {
5249         Jim_SetResultFormatted(interp, "[TAP is disabled]");
5250         return JIM_ERR;
5251 }
5252
5253 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5254 {
5255         bool allow_defer = false;
5256
5257         struct jim_getopt_info goi;
5258         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
5259         if (goi.argc > 1) {
5260                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5261                 Jim_SetResultFormatted(goi.interp,
5262                                 "usage: %s ['allow-defer']", cmd_name);
5263                 return JIM_ERR;
5264         }
5265         if (goi.argc > 0 &&
5266             strcmp(Jim_GetString(argv[1], NULL), "allow-defer") == 0) {
5267                 /* consume it */
5268                 Jim_Obj *obj;
5269                 int e = jim_getopt_obj(&goi, &obj);
5270                 if (e != JIM_OK)
5271                         return e;
5272                 allow_defer = true;
5273         }
5274
5275         struct command_context *cmd_ctx = current_command_context(interp);
5276         assert(cmd_ctx);
5277         struct target *target = get_current_target(cmd_ctx);
5278         if (!target->tap->enabled)
5279                 return jim_target_tap_disabled(interp);
5280
5281         if (allow_defer && target->defer_examine) {
5282                 LOG_INFO("Deferring arp_examine of %s", target_name(target));
5283                 LOG_INFO("Use arp_examine command to examine it manually!");
5284                 return JIM_OK;
5285         }
5286
5287         int e = target->type->examine(target);
5288         if (e != ERROR_OK)
5289                 return JIM_ERR;
5290         return JIM_OK;
5291 }
5292
5293 static int jim_target_was_examined(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5294 {
5295         struct command_context *cmd_ctx = current_command_context(interp);
5296         assert(cmd_ctx);
5297         struct target *target = get_current_target(cmd_ctx);
5298
5299         Jim_SetResultBool(interp, target_was_examined(target));
5300         return JIM_OK;
5301 }
5302
5303 static int jim_target_examine_deferred(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5304 {
5305         struct command_context *cmd_ctx = current_command_context(interp);
5306         assert(cmd_ctx);
5307         struct target *target = get_current_target(cmd_ctx);
5308
5309         Jim_SetResultBool(interp, target->defer_examine);
5310         return JIM_OK;
5311 }
5312
5313 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5314 {
5315         if (argc != 1) {
5316                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5317                 return JIM_ERR;
5318         }
5319         struct command_context *cmd_ctx = current_command_context(interp);
5320         assert(cmd_ctx);
5321         struct target *target = get_current_target(cmd_ctx);
5322
5323         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
5324                 return JIM_ERR;
5325
5326         return JIM_OK;
5327 }
5328
5329 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5330 {
5331         if (argc != 1) {
5332                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5333                 return JIM_ERR;
5334         }
5335         struct command_context *cmd_ctx = current_command_context(interp);
5336         assert(cmd_ctx);
5337         struct target *target = get_current_target(cmd_ctx);
5338         if (!target->tap->enabled)
5339                 return jim_target_tap_disabled(interp);
5340
5341         int e;
5342         if (!(target_was_examined(target)))
5343                 e = ERROR_TARGET_NOT_EXAMINED;
5344         else
5345                 e = target->type->poll(target);
5346         if (e != ERROR_OK)
5347                 return JIM_ERR;
5348         return JIM_OK;
5349 }
5350
5351 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5352 {
5353         struct jim_getopt_info goi;
5354         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
5355
5356         if (goi.argc != 2) {
5357                 Jim_WrongNumArgs(interp, 0, argv,
5358                                 "([tT]|[fF]|assert|deassert) BOOL");
5359                 return JIM_ERR;
5360         }
5361
5362         struct jim_nvp *n;
5363         int e = jim_getopt_nvp(&goi, nvp_assert, &n);
5364         if (e != JIM_OK) {
5365                 jim_getopt_nvp_unknown(&goi, nvp_assert, 1);
5366                 return e;
5367         }
5368         /* the halt or not param */
5369         jim_wide a;
5370         e = jim_getopt_wide(&goi, &a);
5371         if (e != JIM_OK)
5372                 return e;
5373
5374         struct command_context *cmd_ctx = current_command_context(interp);
5375         assert(cmd_ctx);
5376         struct target *target = get_current_target(cmd_ctx);
5377         if (!target->tap->enabled)
5378                 return jim_target_tap_disabled(interp);
5379
5380         if (!target->type->assert_reset || !target->type->deassert_reset) {
5381                 Jim_SetResultFormatted(interp,
5382                                 "No target-specific reset for %s",
5383                                 target_name(target));
5384                 return JIM_ERR;
5385         }
5386
5387         if (target->defer_examine)
5388                 target_reset_examined(target);
5389
5390         /* determine if we should halt or not. */
5391         target->reset_halt = (a != 0);
5392         /* When this happens - all workareas are invalid. */
5393         target_free_all_working_areas_restore(target, 0);
5394
5395         /* do the assert */
5396         if (n->value == NVP_ASSERT)
5397                 e = target->type->assert_reset(target);
5398         else
5399                 e = target->type->deassert_reset(target);
5400         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5401 }
5402
5403 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5404 {
5405         if (argc != 1) {
5406                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5407                 return JIM_ERR;
5408         }
5409         struct command_context *cmd_ctx = current_command_context(interp);
5410         assert(cmd_ctx);
5411         struct target *target = get_current_target(cmd_ctx);
5412         if (!target->tap->enabled)
5413                 return jim_target_tap_disabled(interp);
5414         int e = target->type->halt(target);
5415         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5416 }
5417
5418 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5419 {
5420         struct jim_getopt_info goi;
5421         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
5422
5423         /* params:  <name>  statename timeoutmsecs */
5424         if (goi.argc != 2) {
5425                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5426                 Jim_SetResultFormatted(goi.interp,
5427                                 "%s <state_name> <timeout_in_msec>", cmd_name);
5428                 return JIM_ERR;
5429         }
5430
5431         struct jim_nvp *n;
5432         int e = jim_getopt_nvp(&goi, nvp_target_state, &n);
5433         if (e != JIM_OK) {
5434                 jim_getopt_nvp_unknown(&goi, nvp_target_state, 1);
5435                 return e;
5436         }
5437         jim_wide a;
5438         e = jim_getopt_wide(&goi, &a);
5439         if (e != JIM_OK)
5440                 return e;
5441         struct command_context *cmd_ctx = current_command_context(interp);
5442         assert(cmd_ctx);
5443         struct target *target = get_current_target(cmd_ctx);
5444         if (!target->tap->enabled)
5445                 return jim_target_tap_disabled(interp);
5446
5447         e = target_wait_state(target, n->value, a);
5448         if (e != ERROR_OK) {
5449                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5450                 Jim_SetResultFormatted(goi.interp,
5451                                 "target: %s wait %s fails (%#s) %s",
5452                                 target_name(target), n->name,
5453                                 eObj, target_strerror_safe(e));
5454                 return JIM_ERR;
5455         }
5456         return JIM_OK;
5457 }
5458 /* List for human, Events defined for this target.
5459  * scripts/programs should use 'name cget -event NAME'
5460  */
5461 COMMAND_HANDLER(handle_target_event_list)
5462 {
5463         struct target *target = get_current_target(CMD_CTX);
5464         struct target_event_action *teap = target->event_action;
5465
5466         command_print(CMD, "Event actions for target (%d) %s\n",
5467                                    target->target_number,
5468                                    target_name(target));
5469         command_print(CMD, "%-25s | Body", "Event");
5470         command_print(CMD, "------------------------- | "
5471                         "----------------------------------------");
5472         while (teap) {
5473                 struct jim_nvp *opt = jim_nvp_value2name_simple(nvp_target_event, teap->event);
5474                 command_print(CMD, "%-25s | %s",
5475                                 opt->name, Jim_GetString(teap->body, NULL));
5476                 teap = teap->next;
5477         }
5478         command_print(CMD, "***END***");
5479         return ERROR_OK;
5480 }
5481 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5482 {
5483         if (argc != 1) {
5484                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5485                 return JIM_ERR;
5486         }
5487         struct command_context *cmd_ctx = current_command_context(interp);
5488         assert(cmd_ctx);
5489         struct target *target = get_current_target(cmd_ctx);
5490         Jim_SetResultString(interp, target_state_name(target), -1);
5491         return JIM_OK;
5492 }
5493 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5494 {
5495         struct jim_getopt_info goi;
5496         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
5497         if (goi.argc != 1) {
5498                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5499                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5500                 return JIM_ERR;
5501         }
5502         struct jim_nvp *n;
5503         int e = jim_getopt_nvp(&goi, nvp_target_event, &n);
5504         if (e != JIM_OK) {
5505                 jim_getopt_nvp_unknown(&goi, nvp_target_event, 1);
5506                 return e;
5507         }
5508         struct command_context *cmd_ctx = current_command_context(interp);
5509         assert(cmd_ctx);
5510         struct target *target = get_current_target(cmd_ctx);
5511         target_handle_event(target, n->value);
5512         return JIM_OK;
5513 }
5514
5515 static const struct command_registration target_instance_command_handlers[] = {
5516         {
5517                 .name = "configure",
5518                 .mode = COMMAND_ANY,
5519                 .jim_handler = jim_target_configure,
5520                 .help  = "configure a new target for use",
5521                 .usage = "[target_attribute ...]",
5522         },
5523         {
5524                 .name = "cget",
5525                 .mode = COMMAND_ANY,
5526                 .jim_handler = jim_target_configure,
5527                 .help  = "returns the specified target attribute",
5528                 .usage = "target_attribute",
5529         },
5530         {
5531                 .name = "mwd",
5532                 .handler = handle_mw_command,
5533                 .mode = COMMAND_EXEC,
5534                 .help = "Write 64-bit word(s) to target memory",
5535                 .usage = "address data [count]",
5536         },
5537         {
5538                 .name = "mww",
5539                 .handler = handle_mw_command,
5540                 .mode = COMMAND_EXEC,
5541                 .help = "Write 32-bit word(s) to target memory",
5542                 .usage = "address data [count]",
5543         },
5544         {
5545                 .name = "mwh",
5546                 .handler = handle_mw_command,
5547                 .mode = COMMAND_EXEC,
5548                 .help = "Write 16-bit half-word(s) to target memory",
5549                 .usage = "address data [count]",
5550         },
5551         {
5552                 .name = "mwb",
5553                 .handler = handle_mw_command,
5554                 .mode = COMMAND_EXEC,
5555                 .help = "Write byte(s) to target memory",
5556                 .usage = "address data [count]",
5557         },
5558         {
5559                 .name = "mdd",
5560                 .handler = handle_md_command,
5561                 .mode = COMMAND_EXEC,
5562                 .help = "Display target memory as 64-bit words",
5563                 .usage = "address [count]",
5564         },
5565         {
5566                 .name = "mdw",
5567                 .handler = handle_md_command,
5568                 .mode = COMMAND_EXEC,
5569                 .help = "Display target memory as 32-bit words",
5570                 .usage = "address [count]",
5571         },
5572         {
5573                 .name = "mdh",
5574                 .handler = handle_md_command,
5575                 .mode = COMMAND_EXEC,
5576                 .help = "Display target memory as 16-bit half-words",
5577                 .usage = "address [count]",
5578         },
5579         {
5580                 .name = "mdb",
5581                 .handler = handle_md_command,
5582                 .mode = COMMAND_EXEC,
5583                 .help = "Display target memory as 8-bit bytes",
5584                 .usage = "address [count]",
5585         },
5586         {
5587                 .name = "array2mem",
5588                 .mode = COMMAND_EXEC,
5589                 .jim_handler = jim_target_array2mem,
5590                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5591                         "to target memory",
5592                 .usage = "arrayname bitwidth address count",
5593         },
5594         {
5595                 .name = "mem2array",
5596                 .mode = COMMAND_EXEC,
5597                 .jim_handler = jim_target_mem2array,
5598                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5599                         "from target memory",
5600                 .usage = "arrayname bitwidth address count",
5601         },
5602         {
5603                 .name = "eventlist",
5604                 .handler = handle_target_event_list,
5605                 .mode = COMMAND_EXEC,
5606                 .help = "displays a table of events defined for this target",
5607                 .usage = "",
5608         },
5609         {
5610                 .name = "curstate",
5611                 .mode = COMMAND_EXEC,
5612                 .jim_handler = jim_target_current_state,
5613                 .help = "displays the current state of this target",
5614         },
5615         {
5616                 .name = "arp_examine",
5617                 .mode = COMMAND_EXEC,
5618                 .jim_handler = jim_target_examine,
5619                 .help = "used internally for reset processing",
5620                 .usage = "['allow-defer']",
5621         },
5622         {
5623                 .name = "was_examined",
5624                 .mode = COMMAND_EXEC,
5625                 .jim_handler = jim_target_was_examined,
5626                 .help = "used internally for reset processing",
5627         },
5628         {
5629                 .name = "examine_deferred",
5630                 .mode = COMMAND_EXEC,
5631                 .jim_handler = jim_target_examine_deferred,
5632                 .help = "used internally for reset processing",
5633         },
5634         {
5635                 .name = "arp_halt_gdb",
5636                 .mode = COMMAND_EXEC,
5637                 .jim_handler = jim_target_halt_gdb,
5638                 .help = "used internally for reset processing to halt GDB",
5639         },
5640         {
5641                 .name = "arp_poll",
5642                 .mode = COMMAND_EXEC,
5643                 .jim_handler = jim_target_poll,
5644                 .help = "used internally for reset processing",
5645         },
5646         {
5647                 .name = "arp_reset",
5648                 .mode = COMMAND_EXEC,
5649                 .jim_handler = jim_target_reset,
5650                 .help = "used internally for reset processing",
5651         },
5652         {
5653                 .name = "arp_halt",
5654                 .mode = COMMAND_EXEC,
5655                 .jim_handler = jim_target_halt,
5656                 .help = "used internally for reset processing",
5657         },
5658         {
5659                 .name = "arp_waitstate",
5660                 .mode = COMMAND_EXEC,
5661                 .jim_handler = jim_target_wait_state,
5662                 .help = "used internally for reset processing",
5663         },
5664         {
5665                 .name = "invoke-event",
5666                 .mode = COMMAND_EXEC,
5667                 .jim_handler = jim_target_invoke_event,
5668                 .help = "invoke handler for specified event",
5669                 .usage = "event_name",
5670         },
5671         COMMAND_REGISTRATION_DONE
5672 };
5673
5674 static int target_create(struct jim_getopt_info *goi)
5675 {
5676         Jim_Obj *new_cmd;
5677         Jim_Cmd *cmd;
5678         const char *cp;
5679         int e;
5680         int x;
5681         struct target *target;
5682         struct command_context *cmd_ctx;
5683
5684         cmd_ctx = current_command_context(goi->interp);
5685         assert(cmd_ctx != NULL);
5686
5687         if (goi->argc < 3) {
5688                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5689                 return JIM_ERR;
5690         }
5691
5692         /* COMMAND */
5693         jim_getopt_obj(goi, &new_cmd);
5694         /* does this command exist? */
5695         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5696         if (cmd) {
5697                 cp = Jim_GetString(new_cmd, NULL);
5698                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5699                 return JIM_ERR;
5700         }
5701
5702         /* TYPE */
5703         e = jim_getopt_string(goi, &cp, NULL);
5704         if (e != JIM_OK)
5705                 return e;
5706         struct transport *tr = get_current_transport();
5707         if (tr->override_target) {
5708                 e = tr->override_target(&cp);
5709                 if (e != ERROR_OK) {
5710                         LOG_ERROR("The selected transport doesn't support this target");
5711                         return JIM_ERR;
5712                 }
5713                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5714         }
5715         /* now does target type exist */
5716         for (x = 0 ; target_types[x] ; x++) {
5717                 if (0 == strcmp(cp, target_types[x]->name)) {
5718                         /* found */
5719                         break;
5720                 }
5721         }
5722         if (target_types[x] == NULL) {
5723                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5724                 for (x = 0 ; target_types[x] ; x++) {
5725                         if (target_types[x + 1]) {
5726                                 Jim_AppendStrings(goi->interp,
5727                                                                    Jim_GetResult(goi->interp),
5728                                                                    target_types[x]->name,
5729                                                                    ", ", NULL);
5730                         } else {
5731                                 Jim_AppendStrings(goi->interp,
5732                                                                    Jim_GetResult(goi->interp),
5733                                                                    " or ",
5734                                                                    target_types[x]->name, NULL);
5735                         }
5736                 }
5737                 return JIM_ERR;
5738         }
5739
5740         /* Create it */
5741         target = calloc(1, sizeof(struct target));
5742         if (!target) {
5743                 LOG_ERROR("Out of memory");
5744                 return JIM_ERR;
5745         }
5746
5747         /* set target number */
5748         target->target_number = new_target_number();
5749
5750         /* allocate memory for each unique target type */
5751         target->type = malloc(sizeof(struct target_type));
5752         if (!target->type) {
5753                 LOG_ERROR("Out of memory");
5754                 free(target);
5755                 return JIM_ERR;
5756         }
5757
5758         memcpy(target->type, target_types[x], sizeof(struct target_type));
5759
5760         /* default to first core, override with -coreid */
5761         target->coreid = 0;
5762
5763         target->working_area        = 0x0;
5764         target->working_area_size   = 0x0;
5765         target->working_areas       = NULL;
5766         target->backup_working_area = 0;
5767
5768         target->state               = TARGET_UNKNOWN;
5769         target->debug_reason        = DBG_REASON_UNDEFINED;
5770         target->reg_cache           = NULL;
5771         target->breakpoints         = NULL;
5772         target->watchpoints         = NULL;
5773         target->next                = NULL;
5774         target->arch_info           = NULL;
5775
5776         target->verbose_halt_msg        = true;
5777
5778         target->halt_issued                     = false;
5779
5780         /* initialize trace information */
5781         target->trace_info = calloc(1, sizeof(struct trace));
5782         if (!target->trace_info) {
5783                 LOG_ERROR("Out of memory");
5784                 free(target->type);
5785                 free(target);
5786                 return JIM_ERR;
5787         }
5788
5789         target->dbgmsg          = NULL;
5790         target->dbg_msg_enabled = 0;
5791
5792         target->endianness = TARGET_ENDIAN_UNKNOWN;
5793
5794         target->rtos = NULL;
5795         target->rtos_auto_detect = false;
5796
5797         target->gdb_port_override = NULL;
5798         target->gdb_max_connections = 1;
5799
5800         /* Do the rest as "configure" options */
5801         goi->isconfigure = 1;
5802         e = target_configure(goi, target);
5803
5804         if (e == JIM_OK) {
5805                 if (target->has_dap) {
5806                         if (!target->dap_configured) {
5807                                 Jim_SetResultString(goi->interp, "-dap ?name? required when creating target", -1);
5808                                 e = JIM_ERR;
5809                         }
5810                 } else {
5811                         if (!target->tap_configured) {
5812                                 Jim_SetResultString(goi->interp, "-chain-position ?name? required when creating target", -1);
5813                                 e = JIM_ERR;
5814                         }
5815                 }
5816                 /* tap must be set after target was configured */
5817                 if (target->tap == NULL)
5818                         e = JIM_ERR;
5819         }
5820
5821         if (e != JIM_OK) {
5822                 rtos_destroy(target);
5823                 free(target->gdb_port_override);
5824                 free(target->trace_info);
5825                 free(target->type);
5826                 free(target);
5827                 return e;
5828         }
5829
5830         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5831                 /* default endian to little if not specified */
5832                 target->endianness = TARGET_LITTLE_ENDIAN;
5833         }
5834
5835         cp = Jim_GetString(new_cmd, NULL);
5836         target->cmd_name = strdup(cp);
5837         if (!target->cmd_name) {
5838                 LOG_ERROR("Out of memory");
5839                 rtos_destroy(target);
5840                 free(target->gdb_port_override);
5841                 free(target->trace_info);
5842                 free(target->type);
5843                 free(target);
5844                 return JIM_ERR;
5845         }
5846
5847         if (target->type->target_create) {
5848                 e = (*(target->type->target_create))(target, goi->interp);
5849                 if (e != ERROR_OK) {
5850                         LOG_DEBUG("target_create failed");
5851                         free(target->cmd_name);
5852                         rtos_destroy(target);
5853                         free(target->gdb_port_override);
5854                         free(target->trace_info);
5855                         free(target->type);
5856                         free(target);
5857                         return JIM_ERR;
5858                 }
5859         }
5860
5861         /* create the target specific commands */
5862         if (target->type->commands) {
5863                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5864                 if (ERROR_OK != e)
5865                         LOG_ERROR("unable to register '%s' commands", cp);
5866         }
5867
5868         /* now - create the new target name command */
5869         const struct command_registration target_subcommands[] = {
5870                 {
5871                         .chain = target_instance_command_handlers,
5872                 },
5873                 {
5874                         .chain = target->type->commands,
5875                 },
5876                 COMMAND_REGISTRATION_DONE
5877         };
5878         const struct command_registration target_commands[] = {
5879                 {
5880                         .name = cp,
5881                         .mode = COMMAND_ANY,
5882                         .help = "target command group",
5883                         .usage = "",
5884                         .chain = target_subcommands,
5885                 },
5886                 COMMAND_REGISTRATION_DONE
5887         };
5888         e = register_commands_override_target(cmd_ctx, NULL, target_commands, target);
5889         if (e != ERROR_OK) {
5890                 if (target->type->deinit_target)
5891                         target->type->deinit_target(target);
5892                 free(target->cmd_name);
5893                 rtos_destroy(target);
5894                 free(target->gdb_port_override);
5895                 free(target->trace_info);
5896                 free(target->type);
5897                 free(target);
5898                 return JIM_ERR;
5899         }
5900
5901         /* append to end of list */
5902         append_to_list_all_targets(target);
5903
5904         cmd_ctx->current_target = target;
5905         return JIM_OK;
5906 }
5907
5908 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5909 {
5910         if (argc != 1) {
5911                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5912                 return JIM_ERR;
5913         }
5914         struct command_context *cmd_ctx = current_command_context(interp);
5915         assert(cmd_ctx != NULL);
5916
5917         struct target *target = get_current_target_or_null(cmd_ctx);
5918         if (target)
5919                 Jim_SetResultString(interp, target_name(target), -1);
5920         return JIM_OK;
5921 }
5922
5923 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5924 {
5925         if (argc != 1) {
5926                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5927                 return JIM_ERR;
5928         }
5929         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5930         for (unsigned x = 0; NULL != target_types[x]; x++) {
5931                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5932                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5933         }
5934         return JIM_OK;
5935 }
5936
5937 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5938 {
5939         if (argc != 1) {
5940                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5941                 return JIM_ERR;
5942         }
5943         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5944         struct target *target = all_targets;
5945         while (target) {
5946                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5947                         Jim_NewStringObj(interp, target_name(target), -1));
5948                 target = target->next;
5949         }
5950         return JIM_OK;
5951 }
5952
5953 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5954 {
5955         int i;
5956         const char *targetname;
5957         int retval, len;
5958         struct target *target = (struct target *) NULL;
5959         struct target_list *head, *curr, *new;
5960         curr = (struct target_list *) NULL;
5961         head = (struct target_list *) NULL;
5962
5963         retval = 0;
5964         LOG_DEBUG("%d", argc);
5965         /* argv[1] = target to associate in smp
5966          * argv[2] = target to associate in smp
5967          * argv[3] ...
5968          */
5969
5970         for (i = 1; i < argc; i++) {
5971
5972                 targetname = Jim_GetString(argv[i], &len);
5973                 target = get_target(targetname);
5974                 LOG_DEBUG("%s ", targetname);
5975                 if (target) {
5976                         new = malloc(sizeof(struct target_list));
5977                         new->target = target;
5978                         new->next = (struct target_list *)NULL;
5979                         if (head == (struct target_list *)NULL) {
5980                                 head = new;
5981                                 curr = head;
5982                         } else {
5983                                 curr->next = new;
5984                                 curr = new;
5985                         }
5986                 }
5987         }
5988         /*  now parse the list of cpu and put the target in smp mode*/
5989         curr = head;
5990
5991         while (curr != (struct target_list *)NULL) {
5992                 target = curr->target;
5993                 target->smp = 1;
5994                 target->head = head;
5995                 curr = curr->next;
5996         }
5997
5998         if (target && target->rtos)
5999                 retval = rtos_smp_init(head->target);
6000
6001         return retval;
6002 }
6003
6004
6005 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
6006 {
6007         struct jim_getopt_info goi;
6008         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
6009         if (goi.argc < 3) {
6010                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
6011                         "<name> <target_type> [<target_options> ...]");
6012                 return JIM_ERR;
6013         }
6014         return target_create(&goi);
6015 }
6016
6017 static const struct command_registration target_subcommand_handlers[] = {
6018         {
6019                 .name = "init",
6020                 .mode = COMMAND_CONFIG,
6021                 .handler = handle_target_init_command,
6022                 .help = "initialize targets",
6023                 .usage = "",
6024         },
6025         {
6026                 .name = "create",
6027                 .mode = COMMAND_CONFIG,
6028                 .jim_handler = jim_target_create,
6029                 .usage = "name type '-chain-position' name [options ...]",
6030                 .help = "Creates and selects a new target",
6031         },
6032         {
6033                 .name = "current",
6034                 .mode = COMMAND_ANY,
6035                 .jim_handler = jim_target_current,
6036                 .help = "Returns the currently selected target",
6037         },
6038         {
6039                 .name = "types",
6040                 .mode = COMMAND_ANY,
6041                 .jim_handler = jim_target_types,
6042                 .help = "Returns the available target types as "
6043                                 "a list of strings",
6044         },
6045         {
6046                 .name = "names",
6047                 .mode = COMMAND_ANY,
6048                 .jim_handler = jim_target_names,
6049                 .help = "Returns the names of all targets as a list of strings",
6050         },
6051         {
6052                 .name = "smp",
6053                 .mode = COMMAND_ANY,
6054                 .jim_handler = jim_target_smp,
6055                 .usage = "targetname1 targetname2 ...",
6056                 .help = "gather several target in a smp list"
6057         },
6058
6059         COMMAND_REGISTRATION_DONE
6060 };
6061
6062 struct FastLoad {
6063         target_addr_t address;
6064         uint8_t *data;
6065         int length;
6066
6067 };
6068
6069 static int fastload_num;
6070 static struct FastLoad *fastload;
6071
6072 static void free_fastload(void)
6073 {
6074         if (fastload != NULL) {
6075                 for (int i = 0; i < fastload_num; i++)
6076                         free(fastload[i].data);
6077                 free(fastload);
6078                 fastload = NULL;
6079         }
6080 }
6081
6082 COMMAND_HANDLER(handle_fast_load_image_command)
6083 {
6084         uint8_t *buffer;
6085         size_t buf_cnt;
6086         uint32_t image_size;
6087         target_addr_t min_address = 0;
6088         target_addr_t max_address = -1;
6089
6090         struct image image;
6091
6092         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
6093                         &image, &min_address, &max_address);
6094         if (ERROR_OK != retval)
6095                 return retval;
6096
6097         struct duration bench;
6098         duration_start(&bench);
6099
6100         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
6101         if (retval != ERROR_OK)
6102                 return retval;
6103
6104         image_size = 0x0;
6105         retval = ERROR_OK;
6106         fastload_num = image.num_sections;
6107         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
6108         if (fastload == NULL) {
6109                 command_print(CMD, "out of memory");
6110                 image_close(&image);
6111                 return ERROR_FAIL;
6112         }
6113         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
6114         for (unsigned int i = 0; i < image.num_sections; i++) {
6115                 buffer = malloc(image.sections[i].size);
6116                 if (buffer == NULL) {
6117                         command_print(CMD, "error allocating buffer for section (%d bytes)",
6118                                                   (int)(image.sections[i].size));
6119                         retval = ERROR_FAIL;
6120                         break;
6121                 }
6122
6123                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
6124                 if (retval != ERROR_OK) {
6125                         free(buffer);
6126                         break;
6127                 }
6128
6129                 uint32_t offset = 0;
6130                 uint32_t length = buf_cnt;
6131
6132                 /* DANGER!!! beware of unsigned comparison here!!! */
6133
6134                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
6135                                 (image.sections[i].base_address < max_address)) {
6136                         if (image.sections[i].base_address < min_address) {
6137                                 /* clip addresses below */
6138                                 offset += min_address-image.sections[i].base_address;
6139                                 length -= offset;
6140                         }
6141
6142                         if (image.sections[i].base_address + buf_cnt > max_address)
6143                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
6144
6145                         fastload[i].address = image.sections[i].base_address + offset;
6146                         fastload[i].data = malloc(length);
6147                         if (fastload[i].data == NULL) {
6148                                 free(buffer);
6149                                 command_print(CMD, "error allocating buffer for section (%" PRIu32 " bytes)",
6150                                                           length);
6151                                 retval = ERROR_FAIL;
6152                                 break;
6153                         }
6154                         memcpy(fastload[i].data, buffer + offset, length);
6155                         fastload[i].length = length;
6156
6157                         image_size += length;
6158                         command_print(CMD, "%u bytes written at address 0x%8.8x",
6159                                                   (unsigned int)length,
6160                                                   ((unsigned int)(image.sections[i].base_address + offset)));
6161                 }
6162
6163                 free(buffer);
6164         }
6165
6166         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
6167                 command_print(CMD, "Loaded %" PRIu32 " bytes "
6168                                 "in %fs (%0.3f KiB/s)", image_size,
6169                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
6170
6171                 command_print(CMD,
6172                                 "WARNING: image has not been loaded to target!"
6173                                 "You can issue a 'fast_load' to finish loading.");
6174         }
6175
6176         image_close(&image);
6177
6178         if (retval != ERROR_OK)
6179                 free_fastload();
6180
6181         return retval;
6182 }
6183
6184 COMMAND_HANDLER(handle_fast_load_command)
6185 {
6186         if (CMD_ARGC > 0)
6187                 return ERROR_COMMAND_SYNTAX_ERROR;
6188         if (fastload == NULL) {
6189                 LOG_ERROR("No image in memory");
6190                 return ERROR_FAIL;
6191         }
6192         int i;
6193         int64_t ms = timeval_ms();
6194         int size = 0;
6195         int retval = ERROR_OK;
6196         for (i = 0; i < fastload_num; i++) {
6197                 struct target *target = get_current_target(CMD_CTX);
6198                 command_print(CMD, "Write to 0x%08x, length 0x%08x",
6199                                           (unsigned int)(fastload[i].address),
6200                                           (unsigned int)(fastload[i].length));
6201                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
6202                 if (retval != ERROR_OK)
6203                         break;
6204                 size += fastload[i].length;
6205         }
6206         if (retval == ERROR_OK) {
6207                 int64_t after = timeval_ms();
6208                 command_print(CMD, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
6209         }
6210         return retval;
6211 }
6212
6213 static const struct command_registration target_command_handlers[] = {
6214         {
6215                 .name = "targets",
6216                 .handler = handle_targets_command,
6217                 .mode = COMMAND_ANY,
6218                 .help = "change current default target (one parameter) "
6219                         "or prints table of all targets (no parameters)",
6220                 .usage = "[target]",
6221         },
6222         {
6223                 .name = "target",
6224                 .mode = COMMAND_CONFIG,
6225                 .help = "configure target",
6226                 .chain = target_subcommand_handlers,
6227                 .usage = "",
6228         },
6229         COMMAND_REGISTRATION_DONE
6230 };
6231
6232 int target_register_commands(struct command_context *cmd_ctx)
6233 {
6234         return register_commands(cmd_ctx, NULL, target_command_handlers);
6235 }
6236
6237 static bool target_reset_nag = true;
6238
6239 bool get_target_reset_nag(void)
6240 {
6241         return target_reset_nag;
6242 }
6243
6244 COMMAND_HANDLER(handle_target_reset_nag)
6245 {
6246         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
6247                         &target_reset_nag, "Nag after each reset about options to improve "
6248                         "performance");
6249 }
6250
6251 COMMAND_HANDLER(handle_ps_command)
6252 {
6253         struct target *target = get_current_target(CMD_CTX);
6254         char *display;
6255         if (target->state != TARGET_HALTED) {
6256                 LOG_INFO("target not halted !!");
6257                 return ERROR_OK;
6258         }
6259
6260         if ((target->rtos) && (target->rtos->type)
6261                         && (target->rtos->type->ps_command)) {
6262                 display = target->rtos->type->ps_command(target);
6263                 command_print(CMD, "%s", display);
6264                 free(display);
6265                 return ERROR_OK;
6266         } else {
6267                 LOG_INFO("failed");
6268                 return ERROR_TARGET_FAILURE;
6269         }
6270 }
6271
6272 static void binprint(struct command_invocation *cmd, const char *text, const uint8_t *buf, int size)
6273 {
6274         if (text != NULL)
6275                 command_print_sameline(cmd, "%s", text);
6276         for (int i = 0; i < size; i++)
6277                 command_print_sameline(cmd, " %02x", buf[i]);
6278         command_print(cmd, " ");
6279 }
6280
6281 COMMAND_HANDLER(handle_test_mem_access_command)
6282 {
6283         struct target *target = get_current_target(CMD_CTX);
6284         uint32_t test_size;
6285         int retval = ERROR_OK;
6286
6287         if (target->state != TARGET_HALTED) {
6288                 LOG_INFO("target not halted !!");
6289                 return ERROR_FAIL;
6290         }
6291
6292         if (CMD_ARGC != 1)
6293                 return ERROR_COMMAND_SYNTAX_ERROR;
6294
6295         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
6296
6297         /* Test reads */
6298         size_t num_bytes = test_size + 4;
6299
6300         struct working_area *wa = NULL;
6301         retval = target_alloc_working_area(target, num_bytes, &wa);
6302         if (retval != ERROR_OK) {
6303                 LOG_ERROR("Not enough working area");
6304                 return ERROR_FAIL;
6305         }
6306
6307         uint8_t *test_pattern = malloc(num_bytes);
6308
6309         for (size_t i = 0; i < num_bytes; i++)
6310                 test_pattern[i] = rand();
6311
6312         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6313         if (retval != ERROR_OK) {
6314                 LOG_ERROR("Test pattern write failed");
6315                 goto out;
6316         }
6317
6318         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6319                 for (int size = 1; size <= 4; size *= 2) {
6320                         for (int offset = 0; offset < 4; offset++) {
6321                                 uint32_t count = test_size / size;
6322                                 size_t host_bufsiz = (count + 2) * size + host_offset;
6323                                 uint8_t *read_ref = malloc(host_bufsiz);
6324                                 uint8_t *read_buf = malloc(host_bufsiz);
6325
6326                                 for (size_t i = 0; i < host_bufsiz; i++) {
6327                                         read_ref[i] = rand();
6328                                         read_buf[i] = read_ref[i];
6329                                 }
6330                                 command_print_sameline(CMD,
6331                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
6332                                                 size, offset, host_offset ? "un" : "");
6333
6334                                 struct duration bench;
6335                                 duration_start(&bench);
6336
6337                                 retval = target_read_memory(target, wa->address + offset, size, count,
6338                                                 read_buf + size + host_offset);
6339
6340                                 duration_measure(&bench);
6341
6342                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6343                                         command_print(CMD, "Unsupported alignment");
6344                                         goto next;
6345                                 } else if (retval != ERROR_OK) {
6346                                         command_print(CMD, "Memory read failed");
6347                                         goto next;
6348                                 }
6349
6350                                 /* replay on host */
6351                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
6352
6353                                 /* check result */
6354                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
6355                                 if (result == 0) {
6356                                         command_print(CMD, "Pass in %fs (%0.3f KiB/s)",
6357                                                         duration_elapsed(&bench),
6358                                                         duration_kbps(&bench, count * size));
6359                                 } else {
6360                                         command_print(CMD, "Compare failed");
6361                                         binprint(CMD, "ref:", read_ref, host_bufsiz);
6362                                         binprint(CMD, "buf:", read_buf, host_bufsiz);
6363                                 }
6364 next:
6365                                 free(read_ref);
6366                                 free(read_buf);
6367                         }
6368                 }
6369         }
6370
6371 out:
6372         free(test_pattern);
6373
6374         if (wa != NULL)
6375                 target_free_working_area(target, wa);
6376
6377         /* Test writes */
6378         num_bytes = test_size + 4 + 4 + 4;
6379
6380         retval = target_alloc_working_area(target, num_bytes, &wa);
6381         if (retval != ERROR_OK) {
6382                 LOG_ERROR("Not enough working area");
6383                 return ERROR_FAIL;
6384         }
6385
6386         test_pattern = malloc(num_bytes);
6387
6388         for (size_t i = 0; i < num_bytes; i++)
6389                 test_pattern[i] = rand();
6390
6391         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6392                 for (int size = 1; size <= 4; size *= 2) {
6393                         for (int offset = 0; offset < 4; offset++) {
6394                                 uint32_t count = test_size / size;
6395                                 size_t host_bufsiz = count * size + host_offset;
6396                                 uint8_t *read_ref = malloc(num_bytes);
6397                                 uint8_t *read_buf = malloc(num_bytes);
6398                                 uint8_t *write_buf = malloc(host_bufsiz);
6399
6400                                 for (size_t i = 0; i < host_bufsiz; i++)
6401                                         write_buf[i] = rand();
6402                                 command_print_sameline(CMD,
6403                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
6404                                                 size, offset, host_offset ? "un" : "");
6405
6406                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6407                                 if (retval != ERROR_OK) {
6408                                         command_print(CMD, "Test pattern write failed");
6409                                         goto nextw;
6410                                 }
6411
6412                                 /* replay on host */
6413                                 memcpy(read_ref, test_pattern, num_bytes);
6414                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
6415
6416                                 struct duration bench;
6417                                 duration_start(&bench);
6418
6419                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
6420                                                 write_buf + host_offset);
6421
6422                                 duration_measure(&bench);
6423
6424                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6425                                         command_print(CMD, "Unsupported alignment");
6426                                         goto nextw;
6427                                 } else if (retval != ERROR_OK) {
6428                                         command_print(CMD, "Memory write failed");
6429                                         goto nextw;
6430                                 }
6431
6432                                 /* read back */
6433                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
6434                                 if (retval != ERROR_OK) {
6435                                         command_print(CMD, "Test pattern write failed");
6436                                         goto nextw;
6437                                 }
6438
6439                                 /* check result */
6440                                 int result = memcmp(read_ref, read_buf, num_bytes);
6441                                 if (result == 0) {
6442                                         command_print(CMD, "Pass in %fs (%0.3f KiB/s)",
6443                                                         duration_elapsed(&bench),
6444                                                         duration_kbps(&bench, count * size));
6445                                 } else {
6446                                         command_print(CMD, "Compare failed");
6447                                         binprint(CMD, "ref:", read_ref, num_bytes);
6448                                         binprint(CMD, "buf:", read_buf, num_bytes);
6449                                 }
6450 nextw:
6451                                 free(read_ref);
6452                                 free(read_buf);
6453                         }
6454                 }
6455         }
6456
6457         free(test_pattern);
6458
6459         if (wa != NULL)
6460                 target_free_working_area(target, wa);
6461         return retval;
6462 }
6463
6464 static const struct command_registration target_exec_command_handlers[] = {
6465         {
6466                 .name = "fast_load_image",
6467                 .handler = handle_fast_load_image_command,
6468                 .mode = COMMAND_ANY,
6469                 .help = "Load image into server memory for later use by "
6470                         "fast_load; primarily for profiling",
6471                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6472                         "[min_address [max_length]]",
6473         },
6474         {
6475                 .name = "fast_load",
6476                 .handler = handle_fast_load_command,
6477                 .mode = COMMAND_EXEC,
6478                 .help = "loads active fast load image to current target "
6479                         "- mainly for profiling purposes",
6480                 .usage = "",
6481         },
6482         {
6483                 .name = "profile",
6484                 .handler = handle_profile_command,
6485                 .mode = COMMAND_EXEC,
6486                 .usage = "seconds filename [start end]",
6487                 .help = "profiling samples the CPU PC",
6488         },
6489         /** @todo don't register virt2phys() unless target supports it */
6490         {
6491                 .name = "virt2phys",
6492                 .handler = handle_virt2phys_command,
6493                 .mode = COMMAND_ANY,
6494                 .help = "translate a virtual address into a physical address",
6495                 .usage = "virtual_address",
6496         },
6497         {
6498                 .name = "reg",
6499                 .handler = handle_reg_command,
6500                 .mode = COMMAND_EXEC,
6501                 .help = "display (reread from target with \"force\") or set a register; "
6502                         "with no arguments, displays all registers and their values",
6503                 .usage = "[(register_number|register_name) [(value|'force')]]",
6504         },
6505         {
6506                 .name = "poll",
6507                 .handler = handle_poll_command,
6508                 .mode = COMMAND_EXEC,
6509                 .help = "poll target state; or reconfigure background polling",
6510                 .usage = "['on'|'off']",
6511         },
6512         {
6513                 .name = "wait_halt",
6514                 .handler = handle_wait_halt_command,
6515                 .mode = COMMAND_EXEC,
6516                 .help = "wait up to the specified number of milliseconds "
6517                         "(default 5000) for a previously requested halt",
6518                 .usage = "[milliseconds]",
6519         },
6520         {
6521                 .name = "halt",
6522                 .handler = handle_halt_command,
6523                 .mode = COMMAND_EXEC,
6524                 .help = "request target to halt, then wait up to the specified "
6525                         "number of milliseconds (default 5000) for it to complete",
6526                 .usage = "[milliseconds]",
6527         },
6528         {
6529                 .name = "resume",
6530                 .handler = handle_resume_command,
6531                 .mode = COMMAND_EXEC,
6532                 .help = "resume target execution from current PC or address",
6533                 .usage = "[address]",
6534         },
6535         {
6536                 .name = "reset",
6537                 .handler = handle_reset_command,
6538                 .mode = COMMAND_EXEC,
6539                 .usage = "[run|halt|init]",
6540                 .help = "Reset all targets into the specified mode. "
6541                         "Default reset mode is run, if not given.",
6542         },
6543         {
6544                 .name = "soft_reset_halt",
6545                 .handler = handle_soft_reset_halt_command,
6546                 .mode = COMMAND_EXEC,
6547                 .usage = "",
6548                 .help = "halt the target and do a soft reset",
6549         },
6550         {
6551                 .name = "step",
6552                 .handler = handle_step_command,
6553                 .mode = COMMAND_EXEC,
6554                 .help = "step one instruction from current PC or address",
6555                 .usage = "[address]",
6556         },
6557         {
6558                 .name = "mdd",
6559                 .handler = handle_md_command,
6560                 .mode = COMMAND_EXEC,
6561                 .help = "display memory double-words",
6562                 .usage = "['phys'] address [count]",
6563         },
6564         {
6565                 .name = "mdw",
6566                 .handler = handle_md_command,
6567                 .mode = COMMAND_EXEC,
6568                 .help = "display memory words",
6569                 .usage = "['phys'] address [count]",
6570         },
6571         {
6572                 .name = "mdh",
6573                 .handler = handle_md_command,
6574                 .mode = COMMAND_EXEC,
6575                 .help = "display memory half-words",
6576                 .usage = "['phys'] address [count]",
6577         },
6578         {
6579                 .name = "mdb",
6580                 .handler = handle_md_command,
6581                 .mode = COMMAND_EXEC,
6582                 .help = "display memory bytes",
6583                 .usage = "['phys'] address [count]",
6584         },
6585         {
6586                 .name = "mwd",
6587                 .handler = handle_mw_command,
6588                 .mode = COMMAND_EXEC,
6589                 .help = "write memory double-word",
6590                 .usage = "['phys'] address value [count]",
6591         },
6592         {
6593                 .name = "mww",
6594                 .handler = handle_mw_command,
6595                 .mode = COMMAND_EXEC,
6596                 .help = "write memory word",
6597                 .usage = "['phys'] address value [count]",
6598         },
6599         {
6600                 .name = "mwh",
6601                 .handler = handle_mw_command,
6602                 .mode = COMMAND_EXEC,
6603                 .help = "write memory half-word",
6604                 .usage = "['phys'] address value [count]",
6605         },
6606         {
6607                 .name = "mwb",
6608                 .handler = handle_mw_command,
6609                 .mode = COMMAND_EXEC,
6610                 .help = "write memory byte",
6611                 .usage = "['phys'] address value [count]",
6612         },
6613         {
6614                 .name = "bp",
6615                 .handler = handle_bp_command,
6616                 .mode = COMMAND_EXEC,
6617                 .help = "list or set hardware or software breakpoint",
6618                 .usage = "[<address> [<asid>] <length> ['hw'|'hw_ctx']]",
6619         },
6620         {
6621                 .name = "rbp",
6622                 .handler = handle_rbp_command,
6623                 .mode = COMMAND_EXEC,
6624                 .help = "remove breakpoint",
6625                 .usage = "'all' | address",
6626         },
6627         {
6628                 .name = "wp",
6629                 .handler = handle_wp_command,
6630                 .mode = COMMAND_EXEC,
6631                 .help = "list (no params) or create watchpoints",
6632                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6633         },
6634         {
6635                 .name = "rwp",
6636                 .handler = handle_rwp_command,
6637                 .mode = COMMAND_EXEC,
6638                 .help = "remove watchpoint",
6639                 .usage = "address",
6640         },
6641         {
6642                 .name = "load_image",
6643                 .handler = handle_load_image_command,
6644                 .mode = COMMAND_EXEC,
6645                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6646                         "[min_address] [max_length]",
6647         },
6648         {
6649                 .name = "dump_image",
6650                 .handler = handle_dump_image_command,
6651                 .mode = COMMAND_EXEC,
6652                 .usage = "filename address size",
6653         },
6654         {
6655                 .name = "verify_image_checksum",
6656                 .handler = handle_verify_image_checksum_command,
6657                 .mode = COMMAND_EXEC,
6658                 .usage = "filename [offset [type]]",
6659         },
6660         {
6661                 .name = "verify_image",
6662                 .handler = handle_verify_image_command,
6663                 .mode = COMMAND_EXEC,
6664                 .usage = "filename [offset [type]]",
6665         },
6666         {
6667                 .name = "test_image",
6668                 .handler = handle_test_image_command,
6669                 .mode = COMMAND_EXEC,
6670                 .usage = "filename [offset [type]]",
6671         },
6672         {
6673                 .name = "mem2array",
6674                 .mode = COMMAND_EXEC,
6675                 .jim_handler = jim_mem2array,
6676                 .help = "read 8/16/32 bit memory and return as a TCL array "
6677                         "for script processing",
6678                 .usage = "arrayname bitwidth address count",
6679         },
6680         {
6681                 .name = "array2mem",
6682                 .mode = COMMAND_EXEC,
6683                 .jim_handler = jim_array2mem,
6684                 .help = "convert a TCL array to memory locations "
6685                         "and write the 8/16/32 bit values",
6686                 .usage = "arrayname bitwidth address count",
6687         },
6688         {
6689                 .name = "reset_nag",
6690                 .handler = handle_target_reset_nag,
6691                 .mode = COMMAND_ANY,
6692                 .help = "Nag after each reset about options that could have been "
6693                                 "enabled to improve performance.",
6694                 .usage = "['enable'|'disable']",
6695         },
6696         {
6697                 .name = "ps",
6698                 .handler = handle_ps_command,
6699                 .mode = COMMAND_EXEC,
6700                 .help = "list all tasks",
6701                 .usage = "",
6702         },
6703         {
6704                 .name = "test_mem_access",
6705                 .handler = handle_test_mem_access_command,
6706                 .mode = COMMAND_EXEC,
6707                 .help = "Test the target's memory access functions",
6708                 .usage = "size",
6709         },
6710
6711         COMMAND_REGISTRATION_DONE
6712 };
6713 static int target_register_user_commands(struct command_context *cmd_ctx)
6714 {
6715         int retval = ERROR_OK;
6716         retval = target_request_register_commands(cmd_ctx);
6717         if (retval != ERROR_OK)
6718                 return retval;
6719
6720         retval = trace_register_commands(cmd_ctx);
6721         if (retval != ERROR_OK)
6722                 return retval;
6723
6724
6725         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6726 }