git.sur5r.net Git - openocd/blob - src/target/target.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   Copyright (C) 2011 Andreas Fritiofson                                 *
  24  *   andreas.fritiofson@gmail.com                                          *
  25  *                                                                         *
  26  *   This program is free software; you can redistribute it and/or modify  *
  27  *   it under the terms of the GNU General Public License as published by  *
  28  *   the Free Software Foundation; either version 2 of the License, or     *
  29  *   (at your option) any later version.                                   *
  30  *                                                                         *
  31  *   This program is distributed in the hope that it will be useful,       *
  32  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  33  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  34  *   GNU General Public License for more details.                          *
  35  *                                                                         *
  36  *   You should have received a copy of the GNU General Public License     *
  37  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  38  ***************************************************************************/
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include "config.h"
  42 #endif
  43
  44 #include <helper/time_support.h>
  45 #include <jtag/jtag.h>
  46 #include <flash/nor/core.h>
  47
  48 #include "target.h"
  49 #include "target_type.h"
  50 #include "target_request.h"
  51 #include "breakpoints.h"
  52 #include "register.h"
  53 #include "trace.h"
  54 #include "image.h"
  55 #include "rtos/rtos.h"
  56 #include "transport/transport.h"
  57 #include "arm_cti.h"
  58
  59 /* default halt wait timeout (ms) */
  60 #define DEFAULT_HALT_TIMEOUT 5000
  61
  62 static int target_read_buffer_default(struct target *target, target_addr_t address,
  63                 uint32_t count, uint8_t *buffer);
  64 static int target_write_buffer_default(struct target *target, target_addr_t address,
  65                 uint32_t count, const uint8_t *buffer);
  66 static int target_array2mem(Jim_Interp *interp, struct target *target,
  67                 int argc, Jim_Obj * const *argv);
  68 static int target_mem2array(Jim_Interp *interp, struct target *target,
  69                 int argc, Jim_Obj * const *argv);
  70 static int target_register_user_commands(struct command_context *cmd_ctx);
  71 static int target_get_gdb_fileio_info_default(struct target *target,
  72                 struct gdb_fileio_info *fileio_info);
  73 static int target_gdb_fileio_end_default(struct target *target, int retcode,
  74                 int fileio_errno, bool ctrl_c);
  75 static int target_profiling_default(struct target *target, uint32_t *samples,
  76                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds);
  77
  78 /* targets */
  79 extern struct target_type arm7tdmi_target;
  80 extern struct target_type arm720t_target;
  81 extern struct target_type arm9tdmi_target;
  82 extern struct target_type arm920t_target;
  83 extern struct target_type arm966e_target;
  84 extern struct target_type arm946e_target;
  85 extern struct target_type arm926ejs_target;
  86 extern struct target_type fa526_target;
  87 extern struct target_type feroceon_target;
  88 extern struct target_type dragonite_target;
  89 extern struct target_type xscale_target;
  90 extern struct target_type cortexm_target;
  91 extern struct target_type cortexa_target;
  92 extern struct target_type aarch64_target;
  93 extern struct target_type cortexr4_target;
  94 extern struct target_type arm11_target;
  95 extern struct target_type ls1_sap_target;
  96 extern struct target_type mips_m4k_target;
  97 extern struct target_type avr_target;
  98 extern struct target_type dsp563xx_target;
  99 extern struct target_type dsp5680xx_target;
 100 extern struct target_type testee_target;
 101 extern struct target_type avr32_ap7k_target;
 102 extern struct target_type hla_target;
 103 extern struct target_type nds32_v2_target;
 104 extern struct target_type nds32_v3_target;
 105 extern struct target_type nds32_v3m_target;
 106 extern struct target_type or1k_target;
 107 extern struct target_type quark_x10xx_target;
 108 extern struct target_type quark_d20xx_target;
 109 extern struct target_type stm8_target;
 110
 111 static struct target_type *target_types[] = {
 112         &arm7tdmi_target,
 113         &arm9tdmi_target,
 114         &arm920t_target,
 115         &arm720t_target,
 116         &arm966e_target,
 117         &arm946e_target,
 118         &arm926ejs_target,
 119         &fa526_target,
 120         &feroceon_target,
 121         &dragonite_target,
 122         &xscale_target,
 123         &cortexm_target,
 124         &cortexa_target,
 125         &cortexr4_target,
 126         &arm11_target,
 127         &ls1_sap_target,
 128         &mips_m4k_target,
 129         &avr_target,
 130         &dsp563xx_target,
 131         &dsp5680xx_target,
 132         &testee_target,
 133         &avr32_ap7k_target,
 134         &hla_target,
 135         &nds32_v2_target,
 136         &nds32_v3_target,
 137         &nds32_v3m_target,
 138         &or1k_target,
 139         &quark_x10xx_target,
 140         &quark_d20xx_target,
 141         &stm8_target,
 142 #if BUILD_TARGET64
 143         &aarch64_target,
 144 #endif
 145         NULL,
 146 };
 147
 148 struct target *all_targets;
 149 static struct target_event_callback *target_event_callbacks;
 150 static struct target_timer_callback *target_timer_callbacks;
 151 LIST_HEAD(target_reset_callback_list);
 152 LIST_HEAD(target_trace_callback_list);
 153 static const int polling_interval = 100;
 154
 155 static const Jim_Nvp nvp_assert[] = {
 156         { .name = "assert", NVP_ASSERT },
 157         { .name = "deassert", NVP_DEASSERT },
 158         { .name = "T", NVP_ASSERT },
 159         { .name = "F", NVP_DEASSERT },
 160         { .name = "t", NVP_ASSERT },
 161         { .name = "f", NVP_DEASSERT },
 162         { .name = NULL, .value = -1 }
 163 };
 164
 165 static const Jim_Nvp nvp_error_target[] = {
 166         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 167         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 168         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 169         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 170         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 171         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 172         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 173         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 174         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 175         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 176         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 177         { .value = -1, .name = NULL }
 178 };
 179
 180 static const char *target_strerror_safe(int err)
 181 {
 182         const Jim_Nvp *n;
 183
 184         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 185         if (n->name == NULL)
 186                 return "unknown";
 187         else
 188                 return n->name;
 189 }
 190
 191 static const Jim_Nvp nvp_target_event[] = {
 192
 193         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 194         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 195         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 196         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 197         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 198
 199         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 200         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 201
 202         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 203         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 204         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 205         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 206         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 207         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 208         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 209         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 210
 211         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 212         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 213
 214         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 215         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 216
 217         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 218         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 219
 220         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 221         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 222
 223         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 224         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 225
 226         { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
 227
 228         { .name = NULL, .value = -1 }
 229 };
 230
 231 static const Jim_Nvp nvp_target_state[] = {
 232         { .name = "unknown", .value = TARGET_UNKNOWN },
 233         { .name = "running", .value = TARGET_RUNNING },
 234         { .name = "halted",  .value = TARGET_HALTED },
 235         { .name = "reset",   .value = TARGET_RESET },
 236         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 237         { .name = NULL, .value = -1 },
 238 };
 239
 240 static const Jim_Nvp nvp_target_debug_reason[] = {
 241         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 242         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 243         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 244         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 245         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 246         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 247         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 248         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 249         { .name = NULL, .value = -1 },
 250 };
 251
 252 static const Jim_Nvp nvp_target_endian[] = {
 253         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 254         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 255         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 256         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 257         { .name = NULL,     .value = -1 },
 258 };
 259
 260 static const Jim_Nvp nvp_reset_modes[] = {
 261         { .name = "unknown", .value = RESET_UNKNOWN },
 262         { .name = "run"    , .value = RESET_RUN },
 263         { .name = "halt"   , .value = RESET_HALT },
 264         { .name = "init"   , .value = RESET_INIT },
 265         { .name = NULL     , .value = -1 },
 266 };
 267
 268 const char *debug_reason_name(struct target *t)
 269 {
 270         const char *cp;
 271
 272         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 273                         t->debug_reason)->name;
 274         if (!cp) {
 275                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 276                 cp = "(*BUG*unknown*BUG*)";
 277         }
 278         return cp;
 279 }
 280
 281 const char *target_state_name(struct target *t)
 282 {
 283         const char *cp;
 284         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 285         if (!cp) {
 286                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 287                 cp = "(*BUG*unknown*BUG*)";
 288         }
 289
 290         if (!target_was_examined(t) && t->defer_examine)
 291                 cp = "examine deferred";
 292
 293         return cp;
 294 }
 295
 296 const char *target_event_name(enum target_event event)
 297 {
 298         const char *cp;
 299         cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
 300         if (!cp) {
 301                 LOG_ERROR("Invalid target event: %d", (int)(event));
 302                 cp = "(*BUG*unknown*BUG*)";
 303         }
 304         return cp;
 305 }
 306
 307 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
 308 {
 309         const char *cp;
 310         cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
 311         if (!cp) {
 312                 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
 313                 cp = "(*BUG*unknown*BUG*)";
 314         }
 315         return cp;
 316 }
 317
 318 /* determine the number of the new target */
 319 static int new_target_number(void)
 320 {
 321         struct target *t;
 322         int x;
 323
 324         /* number is 0 based */
 325         x = -1;
 326         t = all_targets;
 327         while (t) {
 328                 if (x < t->target_number)
 329                         x = t->target_number;
 330                 t = t->next;
 331         }
 332         return x + 1;
 333 }
 334
 335 /* read a uint64_t from a buffer in target memory endianness */
 336 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
 337 {
 338         if (target->endianness == TARGET_LITTLE_ENDIAN)
 339                 return le_to_h_u64(buffer);
 340         else
 341                 return be_to_h_u64(buffer);
 342 }
 343
 344 /* read a uint32_t from a buffer in target memory endianness */
 345 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 346 {
 347         if (target->endianness == TARGET_LITTLE_ENDIAN)
 348                 return le_to_h_u32(buffer);
 349         else
 350                 return be_to_h_u32(buffer);
 351 }
 352
 353 /* read a uint24_t from a buffer in target memory endianness */
 354 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 355 {
 356         if (target->endianness == TARGET_LITTLE_ENDIAN)
 357                 return le_to_h_u24(buffer);
 358         else
 359                 return be_to_h_u24(buffer);
 360 }
 361
 362 /* read a uint16_t from a buffer in target memory endianness */
 363 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 364 {
 365         if (target->endianness == TARGET_LITTLE_ENDIAN)
 366                 return le_to_h_u16(buffer);
 367         else
 368                 return be_to_h_u16(buffer);
 369 }
 370
 371 /* read a uint8_t from a buffer in target memory endianness */
 372 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 373 {
 374         return *buffer & 0x0ff;
 375 }
 376
 377 /* write a uint64_t to a buffer in target memory endianness */
 378 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
 379 {
 380         if (target->endianness == TARGET_LITTLE_ENDIAN)
 381                 h_u64_to_le(buffer, value);
 382         else
 383                 h_u64_to_be(buffer, value);
 384 }
 385
 386 /* write a uint32_t to a buffer in target memory endianness */
 387 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 388 {
 389         if (target->endianness == TARGET_LITTLE_ENDIAN)
 390                 h_u32_to_le(buffer, value);
 391         else
 392                 h_u32_to_be(buffer, value);
 393 }
 394
 395 /* write a uint24_t to a buffer in target memory endianness */
 396 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 397 {
 398         if (target->endianness == TARGET_LITTLE_ENDIAN)
 399                 h_u24_to_le(buffer, value);
 400         else
 401                 h_u24_to_be(buffer, value);
 402 }
 403
 404 /* write a uint16_t to a buffer in target memory endianness */
 405 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 406 {
 407         if (target->endianness == TARGET_LITTLE_ENDIAN)
 408                 h_u16_to_le(buffer, value);
 409         else
 410                 h_u16_to_be(buffer, value);
 411 }
 412
 413 /* write a uint8_t to a buffer in target memory endianness */
 414 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 415 {
 416         *buffer = value;
 417 }
 418
 419 /* write a uint64_t array to a buffer in target memory endianness */
 420 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
 421 {
 422         uint32_t i;
 423         for (i = 0; i < count; i++)
 424                 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
 425 }
 426
 427 /* write a uint32_t array to a buffer in target memory endianness */
 428 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 429 {
 430         uint32_t i;
 431         for (i = 0; i < count; i++)
 432                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 433 }
 434
 435 /* write a uint16_t array to a buffer in target memory endianness */
 436 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 437 {
 438         uint32_t i;
 439         for (i = 0; i < count; i++)
 440                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 441 }
 442
 443 /* write a uint64_t array to a buffer in target memory endianness */
 444 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
 445 {
 446         uint32_t i;
 447         for (i = 0; i < count; i++)
 448                 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
 449 }
 450
 451 /* write a uint32_t array to a buffer in target memory endianness */
 452 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
 453 {
 454         uint32_t i;
 455         for (i = 0; i < count; i++)
 456                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 457 }
 458
 459 /* write a uint16_t array to a buffer in target memory endianness */
 460 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
 461 {
 462         uint32_t i;
 463         for (i = 0; i < count; i++)
 464                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 465 }
 466
 467 /* return a pointer to a configured target; id is name or number */
 468 struct target *get_target(const char *id)
 469 {
 470         struct target *target;
 471
 472         /* try as tcltarget name */
 473         for (target = all_targets; target; target = target->next) {
 474                 if (target_name(target) == NULL)
 475                         continue;
 476                 if (strcmp(id, target_name(target)) == 0)
 477                         return target;
 478         }
 479
 480         /* It's OK to remove this fallback sometime after August 2010 or so */
 481
 482         /* no match, try as number */
 483         unsigned num;
 484         if (parse_uint(id, &num) != ERROR_OK)
 485                 return NULL;
 486
 487         for (target = all_targets; target; target = target->next) {
 488                 if (target->target_number == (int)num) {
 489                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 490                                         target_name(target), num);
 491                         return target;
 492                 }
 493         }
 494
 495         return NULL;
 496 }
 497
 498 /* returns a pointer to the n-th configured target */
 499 struct target *get_target_by_num(int num)
 500 {
 501         struct target *target = all_targets;
 502
 503         while (target) {
 504                 if (target->target_number == num)
 505                         return target;
 506                 target = target->next;
 507         }
 508
 509         return NULL;
 510 }
 511
 512 struct target *get_current_target(struct command_context *cmd_ctx)
 513 {
 514         struct target *target = cmd_ctx->current_target_override
 515                 ? cmd_ctx->current_target_override
 516                 : cmd_ctx->current_target;
 517
 518         if (target == NULL) {
 519                 LOG_ERROR("BUG: current_target out of bounds");
 520                 exit(-1);
 521         }
 522
 523         return target;
 524 }
 525
 526 int target_poll(struct target *target)
 527 {
 528         int retval;
 529
 530         /* We can't poll until after examine */
 531         if (!target_was_examined(target)) {
 532                 /* Fail silently lest we pollute the log */
 533                 return ERROR_FAIL;
 534         }
 535
 536         retval = target->type->poll(target);
 537         if (retval != ERROR_OK)
 538                 return retval;
 539
 540         if (target->halt_issued) {
 541                 if (target->state == TARGET_HALTED)
 542                         target->halt_issued = false;
 543                 else {
 544                         int64_t t = timeval_ms() - target->halt_issued_time;
 545                         if (t > DEFAULT_HALT_TIMEOUT) {
 546                                 target->halt_issued = false;
 547                                 LOG_INFO("Halt timed out, wake up GDB.");
 548                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 549                         }
 550                 }
 551         }
 552
 553         return ERROR_OK;
 554 }
 555
 556 int target_halt(struct target *target)
 557 {
 558         int retval;
 559         /* We can't poll until after examine */
 560         if (!target_was_examined(target)) {
 561                 LOG_ERROR("Target not examined yet");
 562                 return ERROR_FAIL;
 563         }
 564
 565         retval = target->type->halt(target);
 566         if (retval != ERROR_OK)
 567                 return retval;
 568
 569         target->halt_issued = true;
 570         target->halt_issued_time = timeval_ms();
 571
 572         return ERROR_OK;
 573 }
 574
 575 /**
 576  * Make the target (re)start executing using its saved execution
 577  * context (possibly with some modifications).
 578  *
 579  * @param target Which target should start executing.
 580  * @param current True to use the target's saved program counter instead
 581  *      of the address parameter
 582  * @param address Optionally used as the program counter.
 583  * @param handle_breakpoints True iff breakpoints at the resumption PC
 584  *      should be skipped.  (For example, maybe execution was stopped by
 585  *      such a breakpoint, in which case it would be counterprodutive to
 586  *      let it re-trigger.
 587  * @param debug_execution False if all working areas allocated by OpenOCD
 588  *      should be released and/or restored to their original contents.
 589  *      (This would for example be true to run some downloaded "helper"
 590  *      algorithm code, which resides in one such working buffer and uses
 591  *      another for data storage.)
 592  *
 593  * @todo Resolve the ambiguity about what the "debug_execution" flag
 594  * signifies.  For example, Target implementations don't agree on how
 595  * it relates to invalidation of the register cache, or to whether
 596  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 597  * to enable breakpoints when running downloaded "helper" algorithms
 598  * (debug_execution true), since the breakpoints would be set to match
 599  * target firmware being debugged, not the helper algorithm.... and
 600  * enabling them could cause such helpers to malfunction (for example,
 601  * by overwriting data with a breakpoint instruction.  On the other
 602  * hand the infrastructure for running such helpers might use this
 603  * procedure but rely on hardware breakpoint to detect termination.)
 604  */
 605 int target_resume(struct target *target, int current, target_addr_t address,
 606                 int handle_breakpoints, int debug_execution)
 607 {
 608         int retval;
 609
 610         /* We can't poll until after examine */
 611         if (!target_was_examined(target)) {
 612                 LOG_ERROR("Target not examined yet");
 613                 return ERROR_FAIL;
 614         }
 615
 616         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 617
 618         /* note that resume *must* be asynchronous. The CPU can halt before
 619          * we poll. The CPU can even halt at the current PC as a result of
 620          * a software breakpoint being inserted by (a bug?) the application.
 621          */
 622         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 623         if (retval != ERROR_OK)
 624                 return retval;
 625
 626         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 627
 628         return retval;
 629 }
 630
 631 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 632 {
 633         char buf[100];
 634         int retval;
 635         Jim_Nvp *n;
 636         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 637         if (n->name == NULL) {
 638                 LOG_ERROR("invalid reset mode");
 639                 return ERROR_FAIL;
 640         }
 641
 642         struct target *target;
 643         for (target = all_targets; target; target = target->next)
 644                 target_call_reset_callbacks(target, reset_mode);
 645
 646         /* disable polling during reset to make reset event scripts
 647          * more predictable, i.e. dr/irscan & pathmove in events will
 648          * not have JTAG operations injected into the middle of a sequence.
 649          */
 650         bool save_poll = jtag_poll_get_enabled();
 651
 652         jtag_poll_set_enabled(false);
 653
 654         sprintf(buf, "ocd_process_reset %s", n->name);
 655         retval = Jim_Eval(cmd_ctx->interp, buf);
 656
 657         jtag_poll_set_enabled(save_poll);
 658
 659         if (retval != JIM_OK) {
 660                 Jim_MakeErrorMessage(cmd_ctx->interp);
 661                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 662                 return ERROR_FAIL;
 663         }
 664
 665         /* We want any events to be processed before the prompt */
 666         retval = target_call_timer_callbacks_now();
 667
 668         for (target = all_targets; target; target = target->next) {
 669                 target->type->check_reset(target);
 670                 target->running_alg = false;
 671         }
 672
 673         return retval;
 674 }
 675
 676 static int identity_virt2phys(struct target *target,
 677                 target_addr_t virtual, target_addr_t *physical)
 678 {
 679         *physical = virtual;
 680         return ERROR_OK;
 681 }
 682
 683 static int no_mmu(struct target *target, int *enabled)
 684 {
 685         *enabled = 0;
 686         return ERROR_OK;
 687 }
 688
 689 static int default_examine(struct target *target)
 690 {
 691         target_set_examined(target);
 692         return ERROR_OK;
 693 }
 694
 695 /* no check by default */
 696 static int default_check_reset(struct target *target)
 697 {
 698         return ERROR_OK;
 699 }
 700
 701 int target_examine_one(struct target *target)
 702 {
 703         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 704
 705         int retval = target->type->examine(target);
 706         if (retval != ERROR_OK)
 707                 return retval;
 708
 709         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 710
 711         return ERROR_OK;
 712 }
 713
 714 static int jtag_enable_callback(enum jtag_event event, void *priv)
 715 {
 716         struct target *target = priv;
 717
 718         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 719                 return ERROR_OK;
 720
 721         jtag_unregister_event_callback(jtag_enable_callback, target);
 722
 723         return target_examine_one(target);
 724 }
 725
 726 /* Targets that correctly implement init + examine, i.e.
 727  * no communication with target during init:
 728  *
 729  * XScale
 730  */
 731 int target_examine(void)
 732 {
 733         int retval = ERROR_OK;
 734         struct target *target;
 735
 736         for (target = all_targets; target; target = target->next) {
 737                 /* defer examination, but don't skip it */
 738                 if (!target->tap->enabled) {
 739                         jtag_register_event_callback(jtag_enable_callback,
 740                                         target);
 741                         continue;
 742                 }
 743
 744                 if (target->defer_examine)
 745                         continue;
 746
 747                 retval = target_examine_one(target);
 748                 if (retval != ERROR_OK)
 749                         return retval;
 750         }
 751         return retval;
 752 }
 753
 754 const char *target_type_name(struct target *target)
 755 {
 756         return target->type->name;
 757 }
 758
 759 static int target_soft_reset_halt(struct target *target)
 760 {
 761         if (!target_was_examined(target)) {
 762                 LOG_ERROR("Target not examined yet");
 763                 return ERROR_FAIL;
 764         }
 765         if (!target->type->soft_reset_halt) {
 766                 LOG_ERROR("Target %s does not support soft_reset_halt",
 767                                 target_name(target));
 768                 return ERROR_FAIL;
 769         }
 770         return target->type->soft_reset_halt(target);
 771 }
 772
 773 /**
 774  * Downloads a target-specific native code algorithm to the target,
 775  * and executes it.  * Note that some targets may need to set up, enable,
 776  * and tear down a breakpoint (hard or * soft) to detect algorithm
 777  * termination, while others may support  lower overhead schemes where
 778  * soft breakpoints embedded in the algorithm automatically terminate the
 779  * algorithm.
 780  *
 781  * @param target used to run the algorithm
 782  * @param arch_info target-specific description of the algorithm.
 783  */
 784 int target_run_algorithm(struct target *target,
 785                 int num_mem_params, struct mem_param *mem_params,
 786                 int num_reg_params, struct reg_param *reg_param,
 787                 uint32_t entry_point, uint32_t exit_point,
 788                 int timeout_ms, void *arch_info)
 789 {
 790         int retval = ERROR_FAIL;
 791
 792         if (!target_was_examined(target)) {
 793                 LOG_ERROR("Target not examined yet");
 794                 goto done;
 795         }
 796         if (!target->type->run_algorithm) {
 797                 LOG_ERROR("Target type '%s' does not support %s",
 798                                 target_type_name(target), __func__);
 799                 goto done;
 800         }
 801
 802         target->running_alg = true;
 803         retval = target->type->run_algorithm(target,
 804                         num_mem_params, mem_params,
 805                         num_reg_params, reg_param,
 806                         entry_point, exit_point, timeout_ms, arch_info);
 807         target->running_alg = false;
 808
 809 done:
 810         return retval;
 811 }
 812
 813 /**
 814  * Executes a target-specific native code algorithm and leaves it running.
 815  *
 816  * @param target used to run the algorithm
 817  * @param arch_info target-specific description of the algorithm.
 818  */
 819 int target_start_algorithm(struct target *target,
 820                 int num_mem_params, struct mem_param *mem_params,
 821                 int num_reg_params, struct reg_param *reg_params,
 822                 uint32_t entry_point, uint32_t exit_point,
 823                 void *arch_info)
 824 {
 825         int retval = ERROR_FAIL;
 826
 827         if (!target_was_examined(target)) {
 828                 LOG_ERROR("Target not examined yet");
 829                 goto done;
 830         }
 831         if (!target->type->start_algorithm) {
 832                 LOG_ERROR("Target type '%s' does not support %s",
 833                                 target_type_name(target), __func__);
 834                 goto done;
 835         }
 836         if (target->running_alg) {
 837                 LOG_ERROR("Target is already running an algorithm");
 838                 goto done;
 839         }
 840
 841         target->running_alg = true;
 842         retval = target->type->start_algorithm(target,
 843                         num_mem_params, mem_params,
 844                         num_reg_params, reg_params,
 845                         entry_point, exit_point, arch_info);
 846
 847 done:
 848         return retval;
 849 }
 850
 851 /**
 852  * Waits for an algorithm started with target_start_algorithm() to complete.
 853  *
 854  * @param target used to run the algorithm
 855  * @param arch_info target-specific description of the algorithm.
 856  */
 857 int target_wait_algorithm(struct target *target,
 858                 int num_mem_params, struct mem_param *mem_params,
 859                 int num_reg_params, struct reg_param *reg_params,
 860                 uint32_t exit_point, int timeout_ms,
 861                 void *arch_info)
 862 {
 863         int retval = ERROR_FAIL;
 864
 865         if (!target->type->wait_algorithm) {
 866                 LOG_ERROR("Target type '%s' does not support %s",
 867                                 target_type_name(target), __func__);
 868                 goto done;
 869         }
 870         if (!target->running_alg) {
 871                 LOG_ERROR("Target is not running an algorithm");
 872                 goto done;
 873         }
 874
 875         retval = target->type->wait_algorithm(target,
 876                         num_mem_params, mem_params,
 877                         num_reg_params, reg_params,
 878                         exit_point, timeout_ms, arch_info);
 879         if (retval != ERROR_TARGET_TIMEOUT)
 880                 target->running_alg = false;
 881
 882 done:
 883         return retval;
 884 }
 885
 886 /**
 887  * Streams data to a circular buffer on target intended for consumption by code
 888  * running asynchronously on target.
 889  *
 890  * This is intended for applications where target-specific native code runs
 891  * on the target, receives data from the circular buffer, does something with
 892  * it (most likely writing it to a flash memory), and advances the circular
 893  * buffer pointer.
 894  *
 895  * This assumes that the helper algorithm has already been loaded to the target,
 896  * but has not been started yet. Given memory and register parameters are passed
 897  * to the algorithm.
 898  *
 899  * The buffer is defined by (buffer_start, buffer_size) arguments and has the
 900  * following format:
 901  *
 902  *     [buffer_start + 0, buffer_start + 4):
 903  *         Write Pointer address (aka head). Written and updated by this
 904  *         routine when new data is written to the circular buffer.
 905  *     [buffer_start + 4, buffer_start + 8):
 906  *         Read Pointer address (aka tail). Updated by code running on the
 907  *         target after it consumes data.
 908  *     [buffer_start + 8, buffer_start + buffer_size):
 909  *         Circular buffer contents.
 910  *
 911  * See contrib/loaders/flash/stm32f1x.S for an example.
 912  *
 913  * @param target used to run the algorithm
 914  * @param buffer address on the host where data to be sent is located
 915  * @param count number of blocks to send
 916  * @param block_size size in bytes of each block
 917  * @param num_mem_params count of memory-based params to pass to algorithm
 918  * @param mem_params memory-based params to pass to algorithm
 919  * @param num_reg_params count of register-based params to pass to algorithm
 920  * @param reg_params memory-based params to pass to algorithm
 921  * @param buffer_start address on the target of the circular buffer structure
 922  * @param buffer_size size of the circular buffer structure
 923  * @param entry_point address on the target to execute to start the algorithm
 924  * @param exit_point address at which to set a breakpoint to catch the
 925  *     end of the algorithm; can be 0 if target triggers a breakpoint itself
 926  */
 927
 928 int target_run_flash_async_algorithm(struct target *target,
 929                 const uint8_t *buffer, uint32_t count, int block_size,
 930                 int num_mem_params, struct mem_param *mem_params,
 931                 int num_reg_params, struct reg_param *reg_params,
 932                 uint32_t buffer_start, uint32_t buffer_size,
 933                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 934 {
 935         int retval;
 936         int timeout = 0;
 937
 938         const uint8_t *buffer_orig = buffer;
 939
 940         /* Set up working area. First word is write pointer, second word is read pointer,
 941          * rest is fifo data area. */
 942         uint32_t wp_addr = buffer_start;
 943         uint32_t rp_addr = buffer_start + 4;
 944         uint32_t fifo_start_addr = buffer_start + 8;
 945         uint32_t fifo_end_addr = buffer_start + buffer_size;
 946
 947         uint32_t wp = fifo_start_addr;
 948         uint32_t rp = fifo_start_addr;
 949
 950         /* validate block_size is 2^n */
 951         assert(!block_size || !(block_size & (block_size - 1)));
 952
 953         retval = target_write_u32(target, wp_addr, wp);
 954         if (retval != ERROR_OK)
 955                 return retval;
 956         retval = target_write_u32(target, rp_addr, rp);
 957         if (retval != ERROR_OK)
 958                 return retval;
 959
 960         /* Start up algorithm on target and let it idle while writing the first chunk */
 961         retval = target_start_algorithm(target, num_mem_params, mem_params,
 962                         num_reg_params, reg_params,
 963                         entry_point,
 964                         exit_point,
 965                         arch_info);
 966
 967         if (retval != ERROR_OK) {
 968                 LOG_ERROR("error starting target flash write algorithm");
 969                 return retval;
 970         }
 971
 972         while (count > 0) {
 973
 974                 retval = target_read_u32(target, rp_addr, &rp);
 975                 if (retval != ERROR_OK) {
 976                         LOG_ERROR("failed to get read pointer");
 977                         break;
 978                 }
 979
 980                 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
 981                         (size_t) (buffer - buffer_orig), count, wp, rp);
 982
 983                 if (rp == 0) {
 984                         LOG_ERROR("flash write algorithm aborted by target");
 985                         retval = ERROR_FLASH_OPERATION_FAILED;
 986                         break;
 987                 }
 988
 989                 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 990                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 991                         break;
 992                 }
 993
 994                 /* Count the number of bytes available in the fifo without
 995                  * crossing the wrap around. Make sure to not fill it completely,
 996                  * because that would make wp == rp and that's the empty condition. */
 997                 uint32_t thisrun_bytes;
 998                 if (rp > wp)
 999                         thisrun_bytes = rp - wp - block_size;
1000                 else if (rp > fifo_start_addr)
1001                         thisrun_bytes = fifo_end_addr - wp;
1002                 else
1003                         thisrun_bytes = fifo_end_addr - wp - block_size;
1004
1005                 if (thisrun_bytes == 0) {
1006                         /* Throttle polling a bit if transfer is (much) faster than flash
1007                          * programming. The exact delay shouldn't matter as long as it's
1008                          * less than buffer size / flash speed. This is very unlikely to
1009                          * run when using high latency connections such as USB. */
1010                         alive_sleep(10);
1011
1012                         /* to stop an infinite loop on some targets check and increment a timeout
1013                          * this issue was observed on a stellaris using the new ICDI interface */
1014                         if (timeout++ >= 500) {
1015                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1016                                 return ERROR_FLASH_OPERATION_FAILED;
1017                         }
1018                         continue;
1019                 }
1020
1021                 /* reset our timeout */
1022                 timeout = 0;
1023
1024                 /* Limit to the amount of data we actually want to write */
1025                 if (thisrun_bytes > count * block_size)
1026                         thisrun_bytes = count * block_size;
1027
1028                 /* Write data to fifo */
1029                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1030                 if (retval != ERROR_OK)
1031                         break;
1032
1033                 /* Update counters and wrap write pointer */
1034                 buffer += thisrun_bytes;
1035                 count -= thisrun_bytes / block_size;
1036                 wp += thisrun_bytes;
1037                 if (wp >= fifo_end_addr)
1038                         wp = fifo_start_addr;
1039
1040                 /* Store updated write pointer to target */
1041                 retval = target_write_u32(target, wp_addr, wp);
1042                 if (retval != ERROR_OK)
1043                         break;
1044         }
1045
1046         if (retval != ERROR_OK) {
1047                 /* abort flash write algorithm on target */
1048                 target_write_u32(target, wp_addr, 0);
1049         }
1050
1051         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1052                         num_reg_params, reg_params,
1053                         exit_point,
1054                         10000,
1055                         arch_info);
1056
1057         if (retval2 != ERROR_OK) {
1058                 LOG_ERROR("error waiting for target flash write algorithm");
1059                 retval = retval2;
1060         }
1061
1062         if (retval == ERROR_OK) {
1063                 /* check if algorithm set rp = 0 after fifo writer loop finished */
1064                 retval = target_read_u32(target, rp_addr, &rp);
1065                 if (retval == ERROR_OK && rp == 0) {
1066                         LOG_ERROR("flash write algorithm aborted by target");
1067                         retval = ERROR_FLASH_OPERATION_FAILED;
1068                 }
1069         }
1070
1071         return retval;
1072 }
1073
1074 int target_read_memory(struct target *target,
1075                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1076 {
1077         if (!target_was_examined(target)) {
1078                 LOG_ERROR("Target not examined yet");
1079                 return ERROR_FAIL;
1080         }
1081         if (!target->type->read_memory) {
1082                 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1083                 return ERROR_FAIL;
1084         }
1085         return target->type->read_memory(target, address, size, count, buffer);
1086 }
1087
1088 int target_read_phys_memory(struct target *target,
1089                 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1090 {
1091         if (!target_was_examined(target)) {
1092                 LOG_ERROR("Target not examined yet");
1093                 return ERROR_FAIL;
1094         }
1095         if (!target->type->read_phys_memory) {
1096                 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1097                 return ERROR_FAIL;
1098         }
1099         return target->type->read_phys_memory(target, address, size, count, buffer);
1100 }
1101
1102 int target_write_memory(struct target *target,
1103                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1104 {
1105         if (!target_was_examined(target)) {
1106                 LOG_ERROR("Target not examined yet");
1107                 return ERROR_FAIL;
1108         }
1109         if (!target->type->write_memory) {
1110                 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1111                 return ERROR_FAIL;
1112         }
1113         return target->type->write_memory(target, address, size, count, buffer);
1114 }
1115
1116 int target_write_phys_memory(struct target *target,
1117                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1118 {
1119         if (!target_was_examined(target)) {
1120                 LOG_ERROR("Target not examined yet");
1121                 return ERROR_FAIL;
1122         }
1123         if (!target->type->write_phys_memory) {
1124                 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1125                 return ERROR_FAIL;
1126         }
1127         return target->type->write_phys_memory(target, address, size, count, buffer);
1128 }
1129
1130 int target_add_breakpoint(struct target *target,
1131                 struct breakpoint *breakpoint)
1132 {
1133         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1134                 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1135                 return ERROR_TARGET_NOT_HALTED;
1136         }
1137         return target->type->add_breakpoint(target, breakpoint);
1138 }
1139
1140 int target_add_context_breakpoint(struct target *target,
1141                 struct breakpoint *breakpoint)
1142 {
1143         if (target->state != TARGET_HALTED) {
1144                 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1145                 return ERROR_TARGET_NOT_HALTED;
1146         }
1147         return target->type->add_context_breakpoint(target, breakpoint);
1148 }
1149
1150 int target_add_hybrid_breakpoint(struct target *target,
1151                 struct breakpoint *breakpoint)
1152 {
1153         if (target->state != TARGET_HALTED) {
1154                 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1155                 return ERROR_TARGET_NOT_HALTED;
1156         }
1157         return target->type->add_hybrid_breakpoint(target, breakpoint);
1158 }
1159
1160 int target_remove_breakpoint(struct target *target,
1161                 struct breakpoint *breakpoint)
1162 {
1163         return target->type->remove_breakpoint(target, breakpoint);
1164 }
1165
1166 int target_add_watchpoint(struct target *target,
1167                 struct watchpoint *watchpoint)
1168 {
1169         if (target->state != TARGET_HALTED) {
1170                 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1171                 return ERROR_TARGET_NOT_HALTED;
1172         }
1173         return target->type->add_watchpoint(target, watchpoint);
1174 }
1175 int target_remove_watchpoint(struct target *target,
1176                 struct watchpoint *watchpoint)
1177 {
1178         return target->type->remove_watchpoint(target, watchpoint);
1179 }
1180 int target_hit_watchpoint(struct target *target,
1181                 struct watchpoint **hit_watchpoint)
1182 {
1183         if (target->state != TARGET_HALTED) {
1184                 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1185                 return ERROR_TARGET_NOT_HALTED;
1186         }
1187
1188         if (target->type->hit_watchpoint == NULL) {
1189                 /* For backward compatible, if hit_watchpoint is not implemented,
1190                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1191                  * information. */
1192                 return ERROR_FAIL;
1193         }
1194
1195         return target->type->hit_watchpoint(target, hit_watchpoint);
1196 }
1197
1198 int target_get_gdb_reg_list(struct target *target,
1199                 struct reg **reg_list[], int *reg_list_size,
1200                 enum target_register_class reg_class)
1201 {
1202         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1203 }
1204 int target_step(struct target *target,
1205                 int current, target_addr_t address, int handle_breakpoints)
1206 {
1207         return target->type->step(target, current, address, handle_breakpoints);
1208 }
1209
1210 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1211 {
1212         if (target->state != TARGET_HALTED) {
1213                 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1214                 return ERROR_TARGET_NOT_HALTED;
1215         }
1216         return target->type->get_gdb_fileio_info(target, fileio_info);
1217 }
1218
1219 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1220 {
1221         if (target->state != TARGET_HALTED) {
1222                 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1223                 return ERROR_TARGET_NOT_HALTED;
1224         }
1225         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1226 }
1227
1228 int target_profiling(struct target *target, uint32_t *samples,
1229                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1230 {
1231         if (target->state != TARGET_HALTED) {
1232                 LOG_WARNING("target %s is not halted (profiling)", target->cmd_name);
1233                 return ERROR_TARGET_NOT_HALTED;
1234         }
1235         return target->type->profiling(target, samples, max_num_samples,
1236                         num_samples, seconds);
1237 }
1238
1239 /**
1240  * Reset the @c examined flag for the given target.
1241  * Pure paranoia -- targets are zeroed on allocation.
1242  */
1243 static void target_reset_examined(struct target *target)
1244 {
1245         target->examined = false;
1246 }
1247
1248 static int handle_target(void *priv);
1249
1250 static int target_init_one(struct command_context *cmd_ctx,
1251                 struct target *target)
1252 {
1253         target_reset_examined(target);
1254
1255         struct target_type *type = target->type;
1256         if (type->examine == NULL)
1257                 type->examine = default_examine;
1258
1259         if (type->check_reset == NULL)
1260                 type->check_reset = default_check_reset;
1261
1262         assert(type->init_target != NULL);
1263
1264         int retval = type->init_target(cmd_ctx, target);
1265         if (ERROR_OK != retval) {
1266                 LOG_ERROR("target '%s' init failed", target_name(target));
1267                 return retval;
1268         }
1269
1270         /* Sanity-check MMU support ... stub in what we must, to help
1271          * implement it in stages, but warn if we need to do so.
1272          */
1273         if (type->mmu) {
1274                 if (type->virt2phys == NULL) {
1275                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1276                         type->virt2phys = identity_virt2phys;
1277                 }
1278         } else {
1279                 /* Make sure no-MMU targets all behave the same:  make no
1280                  * distinction between physical and virtual addresses, and
1281                  * ensure that virt2phys() is always an identity mapping.
1282                  */
1283                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1284                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1285
1286                 type->mmu = no_mmu;
1287                 type->write_phys_memory = type->write_memory;
1288                 type->read_phys_memory = type->read_memory;
1289                 type->virt2phys = identity_virt2phys;
1290         }
1291
1292         if (target->type->read_buffer == NULL)
1293                 target->type->read_buffer = target_read_buffer_default;
1294
1295         if (target->type->write_buffer == NULL)
1296                 target->type->write_buffer = target_write_buffer_default;
1297
1298         if (target->type->get_gdb_fileio_info == NULL)
1299                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1300
1301         if (target->type->gdb_fileio_end == NULL)
1302                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1303
1304         if (target->type->profiling == NULL)
1305                 target->type->profiling = target_profiling_default;
1306
1307         return ERROR_OK;
1308 }
1309
1310 static int target_init(struct command_context *cmd_ctx)
1311 {
1312         struct target *target;
1313         int retval;
1314
1315         for (target = all_targets; target; target = target->next) {
1316                 retval = target_init_one(cmd_ctx, target);
1317                 if (ERROR_OK != retval)
1318                         return retval;
1319         }
1320
1321         if (!all_targets)
1322                 return ERROR_OK;
1323
1324         retval = target_register_user_commands(cmd_ctx);
1325         if (ERROR_OK != retval)
1326                 return retval;
1327
1328         retval = target_register_timer_callback(&handle_target,
1329                         polling_interval, 1, cmd_ctx->interp);
1330         if (ERROR_OK != retval)
1331                 return retval;
1332
1333         return ERROR_OK;
1334 }
1335
1336 COMMAND_HANDLER(handle_target_init_command)
1337 {
1338         int retval;
1339
1340         if (CMD_ARGC != 0)
1341                 return ERROR_COMMAND_SYNTAX_ERROR;
1342
1343         static bool target_initialized;
1344         if (target_initialized) {
1345                 LOG_INFO("'target init' has already been called");
1346                 return ERROR_OK;
1347         }
1348         target_initialized = true;
1349
1350         retval = command_run_line(CMD_CTX, "init_targets");
1351         if (ERROR_OK != retval)
1352                 return retval;
1353
1354         retval = command_run_line(CMD_CTX, "init_target_events");
1355         if (ERROR_OK != retval)
1356                 return retval;
1357
1358         retval = command_run_line(CMD_CTX, "init_board");
1359         if (ERROR_OK != retval)
1360                 return retval;
1361
1362         LOG_DEBUG("Initializing targets...");
1363         return target_init(CMD_CTX);
1364 }
1365
1366 int target_register_event_callback(int (*callback)(struct target *target,
1367                 enum target_event event, void *priv), void *priv)
1368 {
1369         struct target_event_callback **callbacks_p = &target_event_callbacks;
1370
1371         if (callback == NULL)
1372                 return ERROR_COMMAND_SYNTAX_ERROR;
1373
1374         if (*callbacks_p) {
1375                 while ((*callbacks_p)->next)
1376                         callbacks_p = &((*callbacks_p)->next);
1377                 callbacks_p = &((*callbacks_p)->next);
1378         }
1379
1380         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1381         (*callbacks_p)->callback = callback;
1382         (*callbacks_p)->priv = priv;
1383         (*callbacks_p)->next = NULL;
1384
1385         return ERROR_OK;
1386 }
1387
1388 int target_register_reset_callback(int (*callback)(struct target *target,
1389                 enum target_reset_mode reset_mode, void *priv), void *priv)
1390 {
1391         struct target_reset_callback *entry;
1392
1393         if (callback == NULL)
1394                 return ERROR_COMMAND_SYNTAX_ERROR;
1395
1396         entry = malloc(sizeof(struct target_reset_callback));
1397         if (entry == NULL) {
1398                 LOG_ERROR("error allocating buffer for reset callback entry");
1399                 return ERROR_COMMAND_SYNTAX_ERROR;
1400         }
1401
1402         entry->callback = callback;
1403         entry->priv = priv;
1404         list_add(&entry->list, &target_reset_callback_list);
1405
1406
1407         return ERROR_OK;
1408 }
1409
1410 int target_register_trace_callback(int (*callback)(struct target *target,
1411                 size_t len, uint8_t *data, void *priv), void *priv)
1412 {
1413         struct target_trace_callback *entry;
1414
1415         if (callback == NULL)
1416                 return ERROR_COMMAND_SYNTAX_ERROR;
1417
1418         entry = malloc(sizeof(struct target_trace_callback));
1419         if (entry == NULL) {
1420                 LOG_ERROR("error allocating buffer for trace callback entry");
1421                 return ERROR_COMMAND_SYNTAX_ERROR;
1422         }
1423
1424         entry->callback = callback;
1425         entry->priv = priv;
1426         list_add(&entry->list, &target_trace_callback_list);
1427
1428
1429         return ERROR_OK;
1430 }
1431
1432 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1433 {
1434         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1435
1436         if (callback == NULL)
1437                 return ERROR_COMMAND_SYNTAX_ERROR;
1438
1439         if (*callbacks_p) {
1440                 while ((*callbacks_p)->next)
1441                         callbacks_p = &((*callbacks_p)->next);
1442                 callbacks_p = &((*callbacks_p)->next);
1443         }
1444
1445         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1446         (*callbacks_p)->callback = callback;
1447         (*callbacks_p)->periodic = periodic;
1448         (*callbacks_p)->time_ms = time_ms;
1449         (*callbacks_p)->removed = false;
1450
1451         gettimeofday(&(*callbacks_p)->when, NULL);
1452         timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1453
1454         (*callbacks_p)->priv = priv;
1455         (*callbacks_p)->next = NULL;
1456
1457         return ERROR_OK;
1458 }
1459
1460 int target_unregister_event_callback(int (*callback)(struct target *target,
1461                 enum target_event event, void *priv), void *priv)
1462 {
1463         struct target_event_callback **p = &target_event_callbacks;
1464         struct target_event_callback *c = target_event_callbacks;
1465
1466         if (callback == NULL)
1467                 return ERROR_COMMAND_SYNTAX_ERROR;
1468
1469         while (c) {
1470                 struct target_event_callback *next = c->next;
1471                 if ((c->callback == callback) && (c->priv == priv)) {
1472                         *p = next;
1473                         free(c);
1474                         return ERROR_OK;
1475                 } else
1476                         p = &(c->next);
1477                 c = next;
1478         }
1479
1480         return ERROR_OK;
1481 }
1482
1483 int target_unregister_reset_callback(int (*callback)(struct target *target,
1484                 enum target_reset_mode reset_mode, void *priv), void *priv)
1485 {
1486         struct target_reset_callback *entry;
1487
1488         if (callback == NULL)
1489                 return ERROR_COMMAND_SYNTAX_ERROR;
1490
1491         list_for_each_entry(entry, &target_reset_callback_list, list) {
1492                 if (entry->callback == callback && entry->priv == priv) {
1493                         list_del(&entry->list);
1494                         free(entry);
1495                         break;
1496                 }
1497         }
1498
1499         return ERROR_OK;
1500 }
1501
1502 int target_unregister_trace_callback(int (*callback)(struct target *target,
1503                 size_t len, uint8_t *data, void *priv), void *priv)
1504 {
1505         struct target_trace_callback *entry;
1506
1507         if (callback == NULL)
1508                 return ERROR_COMMAND_SYNTAX_ERROR;
1509
1510         list_for_each_entry(entry, &target_trace_callback_list, list) {
1511                 if (entry->callback == callback && entry->priv == priv) {
1512                         list_del(&entry->list);
1513                         free(entry);
1514                         break;
1515                 }
1516         }
1517
1518         return ERROR_OK;
1519 }
1520
1521 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1522 {
1523         if (callback == NULL)
1524                 return ERROR_COMMAND_SYNTAX_ERROR;
1525
1526         for (struct target_timer_callback *c = target_timer_callbacks;
1527              c; c = c->next) {
1528                 if ((c->callback == callback) && (c->priv == priv)) {
1529                         c->removed = true;
1530                         return ERROR_OK;
1531                 }
1532         }
1533
1534         return ERROR_FAIL;
1535 }
1536
1537 int target_call_event_callbacks(struct target *target, enum target_event event)
1538 {
1539         struct target_event_callback *callback = target_event_callbacks;
1540         struct target_event_callback *next_callback;
1541
1542         if (event == TARGET_EVENT_HALTED) {
1543                 /* execute early halted first */
1544                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1545         }
1546
1547         LOG_DEBUG("target event %i (%s)", event,
1548                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1549
1550         target_handle_event(target, event);
1551
1552         while (callback) {
1553                 next_callback = callback->next;
1554                 callback->callback(target, event, callback->priv);
1555                 callback = next_callback;
1556         }
1557
1558         return ERROR_OK;
1559 }
1560
1561 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1562 {
1563         struct target_reset_callback *callback;
1564
1565         LOG_DEBUG("target reset %i (%s)", reset_mode,
1566                         Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1567
1568         list_for_each_entry(callback, &target_reset_callback_list, list)
1569                 callback->callback(target, reset_mode, callback->priv);
1570
1571         return ERROR_OK;
1572 }
1573
1574 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1575 {
1576         struct target_trace_callback *callback;
1577
1578         list_for_each_entry(callback, &target_trace_callback_list, list)
1579                 callback->callback(target, len, data, callback->priv);
1580
1581         return ERROR_OK;
1582 }
1583
1584 static int target_timer_callback_periodic_restart(
1585                 struct target_timer_callback *cb, struct timeval *now)
1586 {
1587         cb->when = *now;
1588         timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1589         return ERROR_OK;
1590 }
1591
1592 static int target_call_timer_callback(struct target_timer_callback *cb,
1593                 struct timeval *now)
1594 {
1595         cb->callback(cb->priv);
1596
1597         if (cb->periodic)
1598                 return target_timer_callback_periodic_restart(cb, now);
1599
1600         return target_unregister_timer_callback(cb->callback, cb->priv);
1601 }
1602
1603 static int target_call_timer_callbacks_check_time(int checktime)
1604 {
1605         static bool callback_processing;
1606
1607         /* Do not allow nesting */
1608         if (callback_processing)
1609                 return ERROR_OK;
1610
1611         callback_processing = true;
1612
1613         keep_alive();
1614
1615         struct timeval now;
1616         gettimeofday(&now, NULL);
1617
1618         /* Store an address of the place containing a pointer to the
1619          * next item; initially, that's a standalone "root of the
1620          * list" variable. */
1621         struct target_timer_callback **callback = &target_timer_callbacks;
1622         while (*callback) {
1623                 if ((*callback)->removed) {
1624                         struct target_timer_callback *p = *callback;
1625                         *callback = (*callback)->next;
1626                         free(p);
1627                         continue;
1628                 }
1629
1630                 bool call_it = (*callback)->callback &&
1631                         ((!checktime && (*callback)->periodic) ||
1632                          timeval_compare(&now, &(*callback)->when) >= 0);
1633
1634                 if (call_it)
1635                         target_call_timer_callback(*callback, &now);
1636
1637                 callback = &(*callback)->next;
1638         }
1639
1640         callback_processing = false;
1641         return ERROR_OK;
1642 }
1643
1644 int target_call_timer_callbacks(void)
1645 {
1646         return target_call_timer_callbacks_check_time(1);
1647 }
1648
1649 /* invoke periodic callbacks immediately */
1650 int target_call_timer_callbacks_now(void)
1651 {
1652         return target_call_timer_callbacks_check_time(0);
1653 }
1654
1655 /* Prints the working area layout for debug purposes */
1656 static void print_wa_layout(struct target *target)
1657 {
1658         struct working_area *c = target->working_areas;
1659
1660         while (c) {
1661                 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1662                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1663                         c->address, c->address + c->size - 1, c->size);
1664                 c = c->next;
1665         }
1666 }
1667
1668 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1669 static void target_split_working_area(struct working_area *area, uint32_t size)
1670 {
1671         assert(area->free); /* Shouldn't split an allocated area */
1672         assert(size <= area->size); /* Caller should guarantee this */
1673
1674         /* Split only if not already the right size */
1675         if (size < area->size) {
1676                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1677
1678                 if (new_wa == NULL)
1679                         return;
1680
1681                 new_wa->next = area->next;
1682                 new_wa->size = area->size - size;
1683                 new_wa->address = area->address + size;
1684                 new_wa->backup = NULL;
1685                 new_wa->user = NULL;
1686                 new_wa->free = true;
1687
1688                 area->next = new_wa;
1689                 area->size = size;
1690
1691                 /* If backup memory was allocated to this area, it has the wrong size
1692                  * now so free it and it will be reallocated if/when needed */
1693                 if (area->backup) {
1694                         free(area->backup);
1695                         area->backup = NULL;
1696                 }
1697         }
1698 }
1699
1700 /* Merge all adjacent free areas into one */
1701 static void target_merge_working_areas(struct target *target)
1702 {
1703         struct working_area *c = target->working_areas;
1704
1705         while (c && c->next) {
1706                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1707
1708                 /* Find two adjacent free areas */
1709                 if (c->free && c->next->free) {
1710                         /* Merge the last into the first */
1711                         c->size += c->next->size;
1712
1713                         /* Remove the last */
1714                         struct working_area *to_be_freed = c->next;
1715                         c->next = c->next->next;
1716                         if (to_be_freed->backup)
1717                                 free(to_be_freed->backup);
1718                         free(to_be_freed);
1719
1720                         /* If backup memory was allocated to the remaining area, it's has
1721                          * the wrong size now */
1722                         if (c->backup) {
1723                                 free(c->backup);
1724                                 c->backup = NULL;
1725                         }
1726                 } else {
1727                         c = c->next;
1728                 }
1729         }
1730 }
1731
1732 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1733 {
1734         /* Reevaluate working area address based on MMU state*/
1735         if (target->working_areas == NULL) {
1736                 int retval;
1737                 int enabled;
1738
1739                 retval = target->type->mmu(target, &enabled);
1740                 if (retval != ERROR_OK)
1741                         return retval;
1742
1743                 if (!enabled) {
1744                         if (target->working_area_phys_spec) {
1745                                 LOG_DEBUG("MMU disabled, using physical "
1746                                         "address for working memory " TARGET_ADDR_FMT,
1747                                         target->working_area_phys);
1748                                 target->working_area = target->working_area_phys;
1749                         } else {
1750                                 LOG_ERROR("No working memory available. "
1751                                         "Specify -work-area-phys to target.");
1752                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1753                         }
1754                 } else {
1755                         if (target->working_area_virt_spec) {
1756                                 LOG_DEBUG("MMU enabled, using virtual "
1757                                         "address for working memory " TARGET_ADDR_FMT,
1758                                         target->working_area_virt);
1759                                 target->working_area = target->working_area_virt;
1760                         } else {
1761                                 LOG_ERROR("No working memory available. "
1762                                         "Specify -work-area-virt to target.");
1763                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1764                         }
1765                 }
1766
1767                 /* Set up initial working area on first call */
1768                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1769                 if (new_wa) {
1770                         new_wa->next = NULL;
1771                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1772                         new_wa->address = target->working_area;
1773                         new_wa->backup = NULL;
1774                         new_wa->user = NULL;
1775                         new_wa->free = true;
1776                 }
1777
1778                 target->working_areas = new_wa;
1779         }
1780
1781         /* only allocate multiples of 4 byte */
1782         if (size % 4)
1783                 size = (size + 3) & (~3UL);
1784
1785         struct working_area *c = target->working_areas;
1786
1787         /* Find the first large enough working area */
1788         while (c) {
1789                 if (c->free && c->size >= size)
1790                         break;
1791                 c = c->next;
1792         }
1793
1794         if (c == NULL)
1795                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1796
1797         /* Split the working area into the requested size */
1798         target_split_working_area(c, size);
1799
1800         LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
1801                           size, c->address);
1802
1803         if (target->backup_working_area) {
1804                 if (c->backup == NULL) {
1805                         c->backup = malloc(c->size);
1806                         if (c->backup == NULL)
1807                                 return ERROR_FAIL;
1808                 }
1809
1810                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1811                 if (retval != ERROR_OK)
1812                         return retval;
1813         }
1814
1815         /* mark as used, and return the new (reused) area */
1816         c->free = false;
1817         *area = c;
1818
1819         /* user pointer */
1820         c->user = area;
1821
1822         print_wa_layout(target);
1823
1824         return ERROR_OK;
1825 }
1826
1827 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1828 {
1829         int retval;
1830
1831         retval = target_alloc_working_area_try(target, size, area);
1832         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1833                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1834         return retval;
1835
1836 }
1837
1838 static int target_restore_working_area(struct target *target, struct working_area *area)
1839 {
1840         int retval = ERROR_OK;
1841
1842         if (target->backup_working_area && area->backup != NULL) {
1843                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1844                 if (retval != ERROR_OK)
1845                         LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1846                                         area->size, area->address);
1847         }
1848
1849         return retval;
1850 }
1851
1852 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1853 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1854 {
1855         int retval = ERROR_OK;
1856
1857         if (area->free)
1858                 return retval;
1859
1860         if (restore) {
1861                 retval = target_restore_working_area(target, area);
1862                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1863                 if (retval != ERROR_OK)
1864                         return retval;
1865         }
1866
1867         area->free = true;
1868
1869         LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1870                         area->size, area->address);
1871
1872         /* mark user pointer invalid */
1873         /* TODO: Is this really safe? It points to some previous caller's memory.
1874          * How could we know that the area pointer is still in that place and not
1875          * some other vital data? What's the purpose of this, anyway? */
1876         *area->user = NULL;
1877         area->user = NULL;
1878
1879         target_merge_working_areas(target);
1880
1881         print_wa_layout(target);
1882
1883         return retval;
1884 }
1885
1886 int target_free_working_area(struct target *target, struct working_area *area)
1887 {
1888         return target_free_working_area_restore(target, area, 1);
1889 }
1890
1891 static void target_destroy(struct target *target)
1892 {
1893         if (target->type->deinit_target)
1894                 target->type->deinit_target(target);
1895
1896         struct target_event_action *teap = target->event_action;
1897         while (teap) {
1898                 struct target_event_action *next = teap->next;
1899                 Jim_DecrRefCount(teap->interp, teap->body);
1900                 free(teap);
1901                 teap = next;
1902         }
1903
1904         target_free_all_working_areas(target);
1905         /* Now we have none or only one working area marked as free */
1906         if (target->working_areas) {
1907                 free(target->working_areas->backup);
1908                 free(target->working_areas);
1909         }
1910
1911         free(target->type);
1912         free(target->trace_info);
1913         free(target->fileio_info);
1914         free(target->cmd_name);
1915         free(target);
1916 }
1917
1918 void target_quit(void)
1919 {
1920         struct target_event_callback *pe = target_event_callbacks;
1921         while (pe) {
1922                 struct target_event_callback *t = pe->next;
1923                 free(pe);
1924                 pe = t;
1925         }
1926         target_event_callbacks = NULL;
1927
1928         struct target_timer_callback *pt = target_timer_callbacks;
1929         while (pt) {
1930                 struct target_timer_callback *t = pt->next;
1931                 free(pt);
1932                 pt = t;
1933         }
1934         target_timer_callbacks = NULL;
1935
1936         for (struct target *target = all_targets; target;) {
1937                 struct target *tmp;
1938
1939                 tmp = target->next;
1940                 target_destroy(target);
1941                 target = tmp;
1942         }
1943
1944         all_targets = NULL;
1945 }
1946
1947 /* free resources and restore memory, if restoring memory fails,
1948  * free up resources anyway
1949  */
1950 static void target_free_all_working_areas_restore(struct target *target, int restore)
1951 {
1952         struct working_area *c = target->working_areas;
1953
1954         LOG_DEBUG("freeing all working areas");
1955
1956         /* Loop through all areas, restoring the allocated ones and marking them as free */
1957         while (c) {
1958                 if (!c->free) {
1959                         if (restore)
1960                                 target_restore_working_area(target, c);
1961                         c->free = true;
1962                         *c->user = NULL; /* Same as above */
1963                         c->user = NULL;
1964                 }
1965                 c = c->next;
1966         }
1967
1968         /* Run a merge pass to combine all areas into one */
1969         target_merge_working_areas(target);
1970
1971         print_wa_layout(target);
1972 }
1973
1974 void target_free_all_working_areas(struct target *target)
1975 {
1976         target_free_all_working_areas_restore(target, 1);
1977 }
1978
1979 /* Find the largest number of bytes that can be allocated */
1980 uint32_t target_get_working_area_avail(struct target *target)
1981 {
1982         struct working_area *c = target->working_areas;
1983         uint32_t max_size = 0;
1984
1985         if (c == NULL)
1986                 return target->working_area_size;
1987
1988         while (c) {
1989                 if (c->free && max_size < c->size)
1990                         max_size = c->size;
1991
1992                 c = c->next;
1993         }
1994
1995         return max_size;
1996 }
1997
1998 int target_arch_state(struct target *target)
1999 {
2000         int retval;
2001         if (target == NULL) {
2002                 LOG_WARNING("No target has been configured");
2003                 return ERROR_OK;
2004         }
2005
2006         if (target->state != TARGET_HALTED)
2007                 return ERROR_OK;
2008
2009         retval = target->type->arch_state(target);
2010         return retval;
2011 }
2012
2013 static int target_get_gdb_fileio_info_default(struct target *target,
2014                 struct gdb_fileio_info *fileio_info)
2015 {
2016         /* If target does not support semi-hosting function, target
2017            has no need to provide .get_gdb_fileio_info callback.
2018            It just return ERROR_FAIL and gdb_server will return "Txx"
2019            as target halted every time.  */
2020         return ERROR_FAIL;
2021 }
2022
2023 static int target_gdb_fileio_end_default(struct target *target,
2024                 int retcode, int fileio_errno, bool ctrl_c)
2025 {
2026         return ERROR_OK;
2027 }
2028
2029 static int target_profiling_default(struct target *target, uint32_t *samples,
2030                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2031 {
2032         struct timeval timeout, now;
2033
2034         gettimeofday(&timeout, NULL);
2035         timeval_add_time(&timeout, seconds, 0);
2036
2037         LOG_INFO("Starting profiling. Halting and resuming the"
2038                         " target as often as we can...");
2039
2040         uint32_t sample_count = 0;
2041         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2042         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
2043
2044         int retval = ERROR_OK;
2045         for (;;) {
2046                 target_poll(target);
2047                 if (target->state == TARGET_HALTED) {
2048                         uint32_t t = buf_get_u32(reg->value, 0, 32);
2049                         samples[sample_count++] = t;
2050                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
2051                         retval = target_resume(target, 1, 0, 0, 0);
2052                         target_poll(target);
2053                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2054                 } else if (target->state == TARGET_RUNNING) {
2055                         /* We want to quickly sample the PC. */
2056                         retval = target_halt(target);
2057                 } else {
2058                         LOG_INFO("Target not halted or running");
2059                         retval = ERROR_OK;
2060                         break;
2061                 }
2062
2063                 if (retval != ERROR_OK)
2064                         break;
2065
2066                 gettimeofday(&now, NULL);
2067                 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2068                         LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2069                         break;
2070                 }
2071         }
2072
2073         *num_samples = sample_count;
2074         return retval;
2075 }
2076
2077 /* Single aligned words are guaranteed to use 16 or 32 bit access
2078  * mode respectively, otherwise data is handled as quickly as
2079  * possible
2080  */
2081 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2082 {
2083         LOG_DEBUG("writing buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2084                           size, address);
2085
2086         if (!target_was_examined(target)) {
2087                 LOG_ERROR("Target not examined yet");
2088                 return ERROR_FAIL;
2089         }
2090
2091         if (size == 0)
2092                 return ERROR_OK;
2093
2094         if ((address + size - 1) < address) {
2095                 /* GDB can request this when e.g. PC is 0xfffffffc */
2096                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2097                                   address,
2098                                   size);
2099                 return ERROR_FAIL;
2100         }
2101
2102         return target->type->write_buffer(target, address, size, buffer);
2103 }
2104
2105 static int target_write_buffer_default(struct target *target,
2106         target_addr_t address, uint32_t count, const uint8_t *buffer)
2107 {
2108         uint32_t size;
2109
2110         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2111          * will have something to do with the size we leave to it. */
2112         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2113                 if (address & size) {
2114                         int retval = target_write_memory(target, address, size, 1, buffer);
2115                         if (retval != ERROR_OK)
2116                                 return retval;
2117                         address += size;
2118                         count -= size;
2119                         buffer += size;
2120                 }
2121         }
2122
2123         /* Write the data with as large access size as possible. */
2124         for (; size > 0; size /= 2) {
2125                 uint32_t aligned = count - count % size;
2126                 if (aligned > 0) {
2127                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
2128                         if (retval != ERROR_OK)
2129                                 return retval;
2130                         address += aligned;
2131                         count -= aligned;
2132                         buffer += aligned;
2133                 }
2134         }
2135
2136         return ERROR_OK;
2137 }
2138
2139 /* Single aligned words are guaranteed to use 16 or 32 bit access
2140  * mode respectively, otherwise data is handled as quickly as
2141  * possible
2142  */
2143 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2144 {
2145         LOG_DEBUG("reading buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2146                           size, address);
2147
2148         if (!target_was_examined(target)) {
2149                 LOG_ERROR("Target not examined yet");
2150                 return ERROR_FAIL;
2151         }
2152
2153         if (size == 0)
2154                 return ERROR_OK;
2155
2156         if ((address + size - 1) < address) {
2157                 /* GDB can request this when e.g. PC is 0xfffffffc */
2158                 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2159                                   address,
2160                                   size);
2161                 return ERROR_FAIL;
2162         }
2163
2164         return target->type->read_buffer(target, address, size, buffer);
2165 }
2166
2167 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2168 {
2169         uint32_t size;
2170
2171         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2172          * will have something to do with the size we leave to it. */
2173         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2174                 if (address & size) {
2175                         int retval = target_read_memory(target, address, size, 1, buffer);
2176                         if (retval != ERROR_OK)
2177                                 return retval;
2178                         address += size;
2179                         count -= size;
2180                         buffer += size;
2181                 }
2182         }
2183
2184         /* Read the data with as large access size as possible. */
2185         for (; size > 0; size /= 2) {
2186                 uint32_t aligned = count - count % size;
2187                 if (aligned > 0) {
2188                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
2189                         if (retval != ERROR_OK)
2190                                 return retval;
2191                         address += aligned;
2192                         count -= aligned;
2193                         buffer += aligned;
2194                 }
2195         }
2196
2197         return ERROR_OK;
2198 }
2199
2200 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* crc)
2201 {
2202         uint8_t *buffer;
2203         int retval;
2204         uint32_t i;
2205         uint32_t checksum = 0;
2206         if (!target_was_examined(target)) {
2207                 LOG_ERROR("Target not examined yet");
2208                 return ERROR_FAIL;
2209         }
2210
2211         retval = target->type->checksum_memory(target, address, size, &checksum);
2212         if (retval != ERROR_OK) {
2213                 buffer = malloc(size);
2214                 if (buffer == NULL) {
2215                         LOG_ERROR("error allocating buffer for section (%" PRId32 " bytes)", size);
2216                         return ERROR_COMMAND_SYNTAX_ERROR;
2217                 }
2218                 retval = target_read_buffer(target, address, size, buffer);
2219                 if (retval != ERROR_OK) {
2220                         free(buffer);
2221                         return retval;
2222                 }
2223
2224                 /* convert to target endianness */
2225                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2226                         uint32_t target_data;
2227                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2228                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2229                 }
2230
2231                 retval = image_calculate_checksum(buffer, size, &checksum);
2232                 free(buffer);
2233         }
2234
2235         *crc = checksum;
2236
2237         return retval;
2238 }
2239
2240 int target_blank_check_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* blank,
2241         uint8_t erased_value)
2242 {
2243         int retval;
2244         if (!target_was_examined(target)) {
2245                 LOG_ERROR("Target not examined yet");
2246                 return ERROR_FAIL;
2247         }
2248
2249         if (target->type->blank_check_memory == 0)
2250                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2251
2252         retval = target->type->blank_check_memory(target, address, size, blank, erased_value);
2253
2254         return retval;
2255 }
2256
2257 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2258 {
2259         uint8_t value_buf[8];
2260         if (!target_was_examined(target)) {
2261                 LOG_ERROR("Target not examined yet");
2262                 return ERROR_FAIL;
2263         }
2264
2265         int retval = target_read_memory(target, address, 8, 1, value_buf);
2266
2267         if (retval == ERROR_OK) {
2268                 *value = target_buffer_get_u64(target, value_buf);
2269                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2270                                   address,
2271                                   *value);
2272         } else {
2273                 *value = 0x0;
2274                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2275                                   address);
2276         }
2277
2278         return retval;
2279 }
2280
2281 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2282 {
2283         uint8_t value_buf[4];
2284         if (!target_was_examined(target)) {
2285                 LOG_ERROR("Target not examined yet");
2286                 return ERROR_FAIL;
2287         }
2288
2289         int retval = target_read_memory(target, address, 4, 1, value_buf);
2290
2291         if (retval == ERROR_OK) {
2292                 *value = target_buffer_get_u32(target, value_buf);
2293                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2294                                   address,
2295                                   *value);
2296         } else {
2297                 *value = 0x0;
2298                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2299                                   address);
2300         }
2301
2302         return retval;
2303 }
2304
2305 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2306 {
2307         uint8_t value_buf[2];
2308         if (!target_was_examined(target)) {
2309                 LOG_ERROR("Target not examined yet");
2310                 return ERROR_FAIL;
2311         }
2312
2313         int retval = target_read_memory(target, address, 2, 1, value_buf);
2314
2315         if (retval == ERROR_OK) {
2316                 *value = target_buffer_get_u16(target, value_buf);
2317                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2318                                   address,
2319                                   *value);
2320         } else {
2321                 *value = 0x0;
2322                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2323                                   address);
2324         }
2325
2326         return retval;
2327 }
2328
2329 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2330 {
2331         if (!target_was_examined(target)) {
2332                 LOG_ERROR("Target not examined yet");
2333                 return ERROR_FAIL;
2334         }
2335
2336         int retval = target_read_memory(target, address, 1, 1, value);
2337
2338         if (retval == ERROR_OK) {
2339                 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2340                                   address,
2341                                   *value);
2342         } else {
2343                 *value = 0x0;
2344                 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2345                                   address);
2346         }
2347
2348         return retval;
2349 }
2350
2351 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2352 {
2353         int retval;
2354         uint8_t value_buf[8];
2355         if (!target_was_examined(target)) {
2356                 LOG_ERROR("Target not examined yet");
2357                 return ERROR_FAIL;
2358         }
2359
2360         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2361                           address,
2362                           value);
2363
2364         target_buffer_set_u64(target, value_buf, value);
2365         retval = target_write_memory(target, address, 8, 1, value_buf);
2366         if (retval != ERROR_OK)
2367                 LOG_DEBUG("failed: %i", retval);
2368
2369         return retval;
2370 }
2371
2372 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2373 {
2374         int retval;
2375         uint8_t value_buf[4];
2376         if (!target_was_examined(target)) {
2377                 LOG_ERROR("Target not examined yet");
2378                 return ERROR_FAIL;
2379         }
2380
2381         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2382                           address,
2383                           value);
2384
2385         target_buffer_set_u32(target, value_buf, value);
2386         retval = target_write_memory(target, address, 4, 1, value_buf);
2387         if (retval != ERROR_OK)
2388                 LOG_DEBUG("failed: %i", retval);
2389
2390         return retval;
2391 }
2392
2393 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2394 {
2395         int retval;
2396         uint8_t value_buf[2];
2397         if (!target_was_examined(target)) {
2398                 LOG_ERROR("Target not examined yet");
2399                 return ERROR_FAIL;
2400         }
2401
2402         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2403                           address,
2404                           value);
2405
2406         target_buffer_set_u16(target, value_buf, value);
2407         retval = target_write_memory(target, address, 2, 1, value_buf);
2408         if (retval != ERROR_OK)
2409                 LOG_DEBUG("failed: %i", retval);
2410
2411         return retval;
2412 }
2413
2414 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2415 {
2416         int retval;
2417         if (!target_was_examined(target)) {
2418                 LOG_ERROR("Target not examined yet");
2419                 return ERROR_FAIL;
2420         }
2421
2422         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2423                           address, value);
2424
2425         retval = target_write_memory(target, address, 1, 1, &value);
2426         if (retval != ERROR_OK)
2427                 LOG_DEBUG("failed: %i", retval);
2428
2429         return retval;
2430 }
2431
2432 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2433 {
2434         int retval;
2435         uint8_t value_buf[8];
2436         if (!target_was_examined(target)) {
2437                 LOG_ERROR("Target not examined yet");
2438                 return ERROR_FAIL;
2439         }
2440
2441         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2442                           address,
2443                           value);
2444
2445         target_buffer_set_u64(target, value_buf, value);
2446         retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2447         if (retval != ERROR_OK)
2448                 LOG_DEBUG("failed: %i", retval);
2449
2450         return retval;
2451 }
2452
2453 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2454 {
2455         int retval;
2456         uint8_t value_buf[4];
2457         if (!target_was_examined(target)) {
2458                 LOG_ERROR("Target not examined yet");
2459                 return ERROR_FAIL;
2460         }
2461
2462         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2463                           address,
2464                           value);
2465
2466         target_buffer_set_u32(target, value_buf, value);
2467         retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2468         if (retval != ERROR_OK)
2469                 LOG_DEBUG("failed: %i", retval);
2470
2471         return retval;
2472 }
2473
2474 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2475 {
2476         int retval;
2477         uint8_t value_buf[2];
2478         if (!target_was_examined(target)) {
2479                 LOG_ERROR("Target not examined yet");
2480                 return ERROR_FAIL;
2481         }
2482
2483         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2484                           address,
2485                           value);
2486
2487         target_buffer_set_u16(target, value_buf, value);
2488         retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2489         if (retval != ERROR_OK)
2490                 LOG_DEBUG("failed: %i", retval);
2491
2492         return retval;
2493 }
2494
2495 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2496 {
2497         int retval;
2498         if (!target_was_examined(target)) {
2499                 LOG_ERROR("Target not examined yet");
2500                 return ERROR_FAIL;
2501         }
2502
2503         LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2504                           address, value);
2505
2506         retval = target_write_phys_memory(target, address, 1, 1, &value);
2507         if (retval != ERROR_OK)
2508                 LOG_DEBUG("failed: %i", retval);
2509
2510         return retval;
2511 }
2512
2513 static int find_target(struct command_context *cmd_ctx, const char *name)
2514 {
2515         struct target *target = get_target(name);
2516         if (target == NULL) {
2517                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2518                 return ERROR_FAIL;
2519         }
2520         if (!target->tap->enabled) {
2521                 LOG_USER("Target: TAP %s is disabled, "
2522                          "can't be the current target\n",
2523                          target->tap->dotted_name);
2524                 return ERROR_FAIL;
2525         }
2526
2527         cmd_ctx->current_target = target;
2528         if (cmd_ctx->current_target_override)
2529                 cmd_ctx->current_target_override = target;
2530
2531         return ERROR_OK;
2532 }
2533
2534
2535 COMMAND_HANDLER(handle_targets_command)
2536 {
2537         int retval = ERROR_OK;
2538         if (CMD_ARGC == 1) {
2539                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2540                 if (retval == ERROR_OK) {
2541                         /* we're done! */
2542                         return retval;
2543                 }
2544         }
2545
2546         struct target *target = all_targets;
2547         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2548         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2549         while (target) {
2550                 const char *state;
2551                 char marker = ' ';
2552
2553                 if (target->tap->enabled)
2554                         state = target_state_name(target);
2555                 else
2556                         state = "tap-disabled";
2557
2558                 if (CMD_CTX->current_target == target)
2559                         marker = '*';
2560
2561                 /* keep columns lined up to match the headers above */
2562                 command_print(CMD_CTX,
2563                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2564                                 target->target_number,
2565                                 marker,
2566                                 target_name(target),
2567                                 target_type_name(target),
2568                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2569                                         target->endianness)->name,
2570                                 target->tap->dotted_name,
2571                                 state);
2572                 target = target->next;
2573         }
2574
2575         return retval;
2576 }
2577
2578 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2579
2580 static int powerDropout;
2581 static int srstAsserted;
2582
2583 static int runPowerRestore;
2584 static int runPowerDropout;
2585 static int runSrstAsserted;
2586 static int runSrstDeasserted;
2587
2588 static int sense_handler(void)
2589 {
2590         static int prevSrstAsserted;
2591         static int prevPowerdropout;
2592
2593         int retval = jtag_power_dropout(&powerDropout);
2594         if (retval != ERROR_OK)
2595                 return retval;
2596
2597         int powerRestored;
2598         powerRestored = prevPowerdropout && !powerDropout;
2599         if (powerRestored)
2600                 runPowerRestore = 1;
2601
2602         int64_t current = timeval_ms();
2603         static int64_t lastPower;
2604         bool waitMore = lastPower + 2000 > current;
2605         if (powerDropout && !waitMore) {
2606                 runPowerDropout = 1;
2607                 lastPower = current;
2608         }
2609
2610         retval = jtag_srst_asserted(&srstAsserted);
2611         if (retval != ERROR_OK)
2612                 return retval;
2613
2614         int srstDeasserted;
2615         srstDeasserted = prevSrstAsserted && !srstAsserted;
2616
2617         static int64_t lastSrst;
2618         waitMore = lastSrst + 2000 > current;
2619         if (srstDeasserted && !waitMore) {
2620                 runSrstDeasserted = 1;
2621                 lastSrst = current;
2622         }
2623
2624         if (!prevSrstAsserted && srstAsserted)
2625                 runSrstAsserted = 1;
2626
2627         prevSrstAsserted = srstAsserted;
2628         prevPowerdropout = powerDropout;
2629
2630         if (srstDeasserted || powerRestored) {
2631                 /* Other than logging the event we can't do anything here.
2632                  * Issuing a reset is a particularly bad idea as we might
2633                  * be inside a reset already.
2634                  */
2635         }
2636
2637         return ERROR_OK;
2638 }
2639
2640 /* process target state changes */
2641 static int handle_target(void *priv)
2642 {
2643         Jim_Interp *interp = (Jim_Interp *)priv;
2644         int retval = ERROR_OK;
2645
2646         if (!is_jtag_poll_safe()) {
2647                 /* polling is disabled currently */
2648                 return ERROR_OK;
2649         }
2650
2651         /* we do not want to recurse here... */
2652         static int recursive;
2653         if (!recursive) {
2654                 recursive = 1;
2655                 sense_handler();
2656                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2657                  * We need to avoid an infinite loop/recursion here and we do that by
2658                  * clearing the flags after running these events.
2659                  */
2660                 int did_something = 0;
2661                 if (runSrstAsserted) {
2662                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2663                         Jim_Eval(interp, "srst_asserted");
2664                         did_something = 1;
2665                 }
2666                 if (runSrstDeasserted) {
2667                         Jim_Eval(interp, "srst_deasserted");
2668                         did_something = 1;
2669                 }
2670                 if (runPowerDropout) {
2671                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2672                         Jim_Eval(interp, "power_dropout");
2673                         did_something = 1;
2674                 }
2675                 if (runPowerRestore) {
2676                         Jim_Eval(interp, "power_restore");
2677                         did_something = 1;
2678                 }
2679
2680                 if (did_something) {
2681                         /* clear detect flags */
2682                         sense_handler();
2683                 }
2684
2685                 /* clear action flags */
2686
2687                 runSrstAsserted = 0;
2688                 runSrstDeasserted = 0;
2689                 runPowerRestore = 0;
2690                 runPowerDropout = 0;
2691
2692                 recursive = 0;
2693         }
2694
2695         /* Poll targets for state changes unless that's globally disabled.
2696          * Skip targets that are currently disabled.
2697          */
2698         for (struct target *target = all_targets;
2699                         is_jtag_poll_safe() && target;
2700                         target = target->next) {
2701
2702                 if (!target_was_examined(target))
2703                         continue;
2704
2705                 if (!target->tap->enabled)
2706                         continue;
2707
2708                 if (target->backoff.times > target->backoff.count) {
2709                         /* do not poll this time as we failed previously */
2710                         target->backoff.count++;
2711                         continue;
2712                 }
2713                 target->backoff.count = 0;
2714
2715                 /* only poll target if we've got power and srst isn't asserted */
2716                 if (!powerDropout && !srstAsserted) {
2717                         /* polling may fail silently until the target has been examined */
2718                         retval = target_poll(target);
2719                         if (retval != ERROR_OK) {
2720                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2721                                 if (target->backoff.times * polling_interval < 5000) {
2722                                         target->backoff.times *= 2;
2723                                         target->backoff.times++;
2724                                 }
2725
2726                                 /* Tell GDB to halt the debugger. This allows the user to
2727                                  * run monitor commands to handle the situation.
2728                                  */
2729                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2730                         }
2731                         if (target->backoff.times > 0) {
2732                                 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2733                                 target_reset_examined(target);
2734                                 retval = target_examine_one(target);
2735                                 /* Target examination could have failed due to unstable connection,
2736                                  * but we set the examined flag anyway to repoll it later */
2737                                 if (retval != ERROR_OK) {
2738                                         target->examined = true;
2739                                         LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2740                                                  target->backoff.times * polling_interval);
2741                                         return retval;
2742                                 }
2743                         }
2744
2745                         /* Since we succeeded, we reset backoff count */
2746                         target->backoff.times = 0;
2747                 }
2748         }
2749
2750         return retval;
2751 }
2752
2753 COMMAND_HANDLER(handle_reg_command)
2754 {
2755         struct target *target;
2756         struct reg *reg = NULL;
2757         unsigned count = 0;
2758         char *value;
2759
2760         LOG_DEBUG("-");
2761
2762         target = get_current_target(CMD_CTX);
2763
2764         /* list all available registers for the current target */
2765         if (CMD_ARGC == 0) {
2766                 struct reg_cache *cache = target->reg_cache;
2767
2768                 count = 0;
2769                 while (cache) {
2770                         unsigned i;
2771
2772                         command_print(CMD_CTX, "===== %s", cache->name);
2773
2774                         for (i = 0, reg = cache->reg_list;
2775                                         i < cache->num_regs;
2776                                         i++, reg++, count++) {
2777                                 /* only print cached values if they are valid */
2778                                 if (reg->valid) {
2779                                         value = buf_to_str(reg->value,
2780                                                         reg->size, 16);
2781                                         command_print(CMD_CTX,
2782                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2783                                                         count, reg->name,
2784                                                         reg->size, value,
2785                                                         reg->dirty
2786                                                                 ? " (dirty)"
2787                                                                 : "");
2788                                         free(value);
2789                                 } else {
2790                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2791                                                           count, reg->name,
2792                                                           reg->size) ;
2793                                 }
2794                         }
2795                         cache = cache->next;
2796                 }
2797
2798                 return ERROR_OK;
2799         }
2800
2801         /* access a single register by its ordinal number */
2802         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2803                 unsigned num;
2804                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2805
2806                 struct reg_cache *cache = target->reg_cache;
2807                 count = 0;
2808                 while (cache) {
2809                         unsigned i;
2810                         for (i = 0; i < cache->num_regs; i++) {
2811                                 if (count++ == num) {
2812                                         reg = &cache->reg_list[i];
2813                                         break;
2814                                 }
2815                         }
2816                         if (reg)
2817                                 break;
2818                         cache = cache->next;
2819                 }
2820
2821                 if (!reg) {
2822                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2823                                         "has only %i registers (0 - %i)", num, count, count - 1);
2824                         return ERROR_OK;
2825                 }
2826         } else {
2827                 /* access a single register by its name */
2828                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2829
2830                 if (!reg) {
2831                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2832                         return ERROR_OK;
2833                 }
2834         }
2835
2836         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2837
2838         /* display a register */
2839         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2840                         && (CMD_ARGV[1][0] <= '9')))) {
2841                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2842                         reg->valid = 0;
2843
2844                 if (reg->valid == 0)
2845                         reg->type->get(reg);
2846                 value = buf_to_str(reg->value, reg->size, 16);
2847                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2848                 free(value);
2849                 return ERROR_OK;
2850         }
2851
2852         /* set register value */
2853         if (CMD_ARGC == 2) {
2854                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2855                 if (buf == NULL)
2856                         return ERROR_FAIL;
2857                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2858
2859                 reg->type->set(reg, buf);
2860
2861                 value = buf_to_str(reg->value, reg->size, 16);
2862                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2863                 free(value);
2864
2865                 free(buf);
2866
2867                 return ERROR_OK;
2868         }
2869
2870         return ERROR_COMMAND_SYNTAX_ERROR;
2871 }
2872
2873 COMMAND_HANDLER(handle_poll_command)
2874 {
2875         int retval = ERROR_OK;
2876         struct target *target = get_current_target(CMD_CTX);
2877
2878         if (CMD_ARGC == 0) {
2879                 command_print(CMD_CTX, "background polling: %s",
2880                                 jtag_poll_get_enabled() ? "on" : "off");
2881                 command_print(CMD_CTX, "TAP: %s (%s)",
2882                                 target->tap->dotted_name,
2883                                 target->tap->enabled ? "enabled" : "disabled");
2884                 if (!target->tap->enabled)
2885                         return ERROR_OK;
2886                 retval = target_poll(target);
2887                 if (retval != ERROR_OK)
2888                         return retval;
2889                 retval = target_arch_state(target);
2890                 if (retval != ERROR_OK)
2891                         return retval;
2892         } else if (CMD_ARGC == 1) {
2893                 bool enable;
2894                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2895                 jtag_poll_set_enabled(enable);
2896         } else
2897                 return ERROR_COMMAND_SYNTAX_ERROR;
2898
2899         return retval;
2900 }
2901
2902 COMMAND_HANDLER(handle_wait_halt_command)
2903 {
2904         if (CMD_ARGC > 1)
2905                 return ERROR_COMMAND_SYNTAX_ERROR;
2906
2907         unsigned ms = DEFAULT_HALT_TIMEOUT;
2908         if (1 == CMD_ARGC) {
2909                 int retval = parse_uint(CMD_ARGV[0], &ms);
2910                 if (ERROR_OK != retval)
2911                         return ERROR_COMMAND_SYNTAX_ERROR;
2912         }
2913
2914         struct target *target = get_current_target(CMD_CTX);
2915         return target_wait_state(target, TARGET_HALTED, ms);
2916 }
2917
2918 /* wait for target state to change. The trick here is to have a low
2919  * latency for short waits and not to suck up all the CPU time
2920  * on longer waits.
2921  *
2922  * After 500ms, keep_alive() is invoked
2923  */
2924 int target_wait_state(struct target *target, enum target_state state, int ms)
2925 {
2926         int retval;
2927         int64_t then = 0, cur;
2928         bool once = true;
2929
2930         for (;;) {
2931                 retval = target_poll(target);
2932                 if (retval != ERROR_OK)
2933                         return retval;
2934                 if (target->state == state)
2935                         break;
2936                 cur = timeval_ms();
2937                 if (once) {
2938                         once = false;
2939                         then = timeval_ms();
2940                         LOG_DEBUG("waiting for target %s...",
2941                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2942                 }
2943
2944                 if (cur-then > 500)
2945                         keep_alive();
2946
2947                 if ((cur-then) > ms) {
2948                         LOG_ERROR("timed out while waiting for target %s",
2949                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2950                         return ERROR_FAIL;
2951                 }
2952         }
2953
2954         return ERROR_OK;
2955 }
2956
2957 COMMAND_HANDLER(handle_halt_command)
2958 {
2959         LOG_DEBUG("-");
2960
2961         struct target *target = get_current_target(CMD_CTX);
2962
2963         target->verbose_halt_msg = true;
2964
2965         int retval = target_halt(target);
2966         if (ERROR_OK != retval)
2967                 return retval;
2968
2969         if (CMD_ARGC == 1) {
2970                 unsigned wait_local;
2971                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2972                 if (ERROR_OK != retval)
2973                         return ERROR_COMMAND_SYNTAX_ERROR;
2974                 if (!wait_local)
2975                         return ERROR_OK;
2976         }
2977
2978         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2979 }
2980
2981 COMMAND_HANDLER(handle_soft_reset_halt_command)
2982 {
2983         struct target *target = get_current_target(CMD_CTX);
2984
2985         LOG_USER("requesting target halt and executing a soft reset");
2986
2987         target_soft_reset_halt(target);
2988
2989         return ERROR_OK;
2990 }
2991
2992 COMMAND_HANDLER(handle_reset_command)
2993 {
2994         if (CMD_ARGC > 1)
2995                 return ERROR_COMMAND_SYNTAX_ERROR;
2996
2997         enum target_reset_mode reset_mode = RESET_RUN;
2998         if (CMD_ARGC == 1) {
2999                 const Jim_Nvp *n;
3000                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
3001                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
3002                         return ERROR_COMMAND_SYNTAX_ERROR;
3003                 reset_mode = n->value;
3004         }
3005
3006         /* reset *all* targets */
3007         return target_process_reset(CMD_CTX, reset_mode);
3008 }
3009
3010
3011 COMMAND_HANDLER(handle_resume_command)
3012 {
3013         int current = 1;
3014         if (CMD_ARGC > 1)
3015                 return ERROR_COMMAND_SYNTAX_ERROR;
3016
3017         struct target *target = get_current_target(CMD_CTX);
3018
3019         /* with no CMD_ARGV, resume from current pc, addr = 0,
3020          * with one arguments, addr = CMD_ARGV[0],
3021          * handle breakpoints, not debugging */
3022         target_addr_t addr = 0;
3023         if (CMD_ARGC == 1) {
3024                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3025                 current = 0;
3026         }
3027
3028         return target_resume(target, current, addr, 1, 0);
3029 }
3030
3031 COMMAND_HANDLER(handle_step_command)
3032 {
3033         if (CMD_ARGC > 1)
3034                 return ERROR_COMMAND_SYNTAX_ERROR;
3035
3036         LOG_DEBUG("-");
3037
3038         /* with no CMD_ARGV, step from current pc, addr = 0,
3039          * with one argument addr = CMD_ARGV[0],
3040          * handle breakpoints, debugging */
3041         target_addr_t addr = 0;
3042         int current_pc = 1;
3043         if (CMD_ARGC == 1) {
3044                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3045                 current_pc = 0;
3046         }
3047
3048         struct target *target = get_current_target(CMD_CTX);
3049
3050         return target->type->step(target, current_pc, addr, 1);
3051 }
3052
3053 static void handle_md_output(struct command_context *cmd_ctx,
3054                 struct target *target, target_addr_t address, unsigned size,
3055                 unsigned count, const uint8_t *buffer)
3056 {
3057         const unsigned line_bytecnt = 32;
3058         unsigned line_modulo = line_bytecnt / size;
3059
3060         char output[line_bytecnt * 4 + 1];
3061         unsigned output_len = 0;
3062
3063         const char *value_fmt;
3064         switch (size) {
3065         case 8:
3066                 value_fmt = "%16.16"PRIx64" ";
3067                 break;
3068         case 4:
3069                 value_fmt = "%8.8"PRIx64" ";
3070                 break;
3071         case 2:
3072                 value_fmt = "%4.4"PRIx64" ";
3073                 break;
3074         case 1:
3075                 value_fmt = "%2.2"PRIx64" ";
3076                 break;
3077         default:
3078                 /* "can't happen", caller checked */
3079                 LOG_ERROR("invalid memory read size: %u", size);
3080                 return;
3081         }
3082
3083         for (unsigned i = 0; i < count; i++) {
3084                 if (i % line_modulo == 0) {
3085                         output_len += snprintf(output + output_len,
3086                                         sizeof(output) - output_len,
3087                                         TARGET_ADDR_FMT ": ",
3088                                         (address + (i * size)));
3089                 }
3090
3091                 uint64_t value = 0;
3092                 const uint8_t *value_ptr = buffer + i * size;
3093                 switch (size) {
3094                 case 8:
3095                         value = target_buffer_get_u64(target, value_ptr);
3096                         break;
3097                 case 4:
3098                         value = target_buffer_get_u32(target, value_ptr);
3099                         break;
3100                 case 2:
3101                         value = target_buffer_get_u16(target, value_ptr);
3102                         break;
3103                 case 1:
3104                         value = *value_ptr;
3105                 }
3106                 output_len += snprintf(output + output_len,
3107                                 sizeof(output) - output_len,
3108                                 value_fmt, value);
3109
3110                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3111                         command_print(cmd_ctx, "%s", output);
3112                         output_len = 0;
3113                 }
3114         }
3115 }
3116
3117 COMMAND_HANDLER(handle_md_command)
3118 {
3119         if (CMD_ARGC < 1)
3120                 return ERROR_COMMAND_SYNTAX_ERROR;
3121
3122         unsigned size = 0;
3123         switch (CMD_NAME[2]) {
3124         case 'd':
3125                 size = 8;
3126                 break;
3127         case 'w':
3128                 size = 4;
3129                 break;
3130         case 'h':
3131                 size = 2;
3132                 break;
3133         case 'b':
3134                 size = 1;
3135                 break;
3136         default:
3137                 return ERROR_COMMAND_SYNTAX_ERROR;
3138         }
3139
3140         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3141         int (*fn)(struct target *target,
3142                         target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3143         if (physical) {
3144                 CMD_ARGC--;
3145                 CMD_ARGV++;
3146                 fn = target_read_phys_memory;
3147         } else
3148                 fn = target_read_memory;
3149         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3150                 return ERROR_COMMAND_SYNTAX_ERROR;
3151
3152         target_addr_t address;
3153         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3154
3155         unsigned count = 1;
3156         if (CMD_ARGC == 2)
3157                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3158
3159         uint8_t *buffer = calloc(count, size);
3160         if (buffer == NULL) {
3161                 LOG_ERROR("Failed to allocate md read buffer");
3162                 return ERROR_FAIL;
3163         }
3164
3165         struct target *target = get_current_target(CMD_CTX);
3166         int retval = fn(target, address, size, count, buffer);
3167         if (ERROR_OK == retval)
3168                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3169
3170         free(buffer);
3171
3172         return retval;
3173 }
3174
3175 typedef int (*target_write_fn)(struct target *target,
3176                 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3177
3178 static int target_fill_mem(struct target *target,
3179                 target_addr_t address,
3180                 target_write_fn fn,
3181                 unsigned data_size,
3182                 /* value */
3183                 uint64_t b,
3184                 /* count */
3185                 unsigned c)
3186 {
3187         /* We have to write in reasonably large chunks to be able
3188          * to fill large memory areas with any sane speed */
3189         const unsigned chunk_size = 16384;
3190         uint8_t *target_buf = malloc(chunk_size * data_size);
3191         if (target_buf == NULL) {
3192                 LOG_ERROR("Out of memory");
3193                 return ERROR_FAIL;
3194         }
3195
3196         for (unsigned i = 0; i < chunk_size; i++) {
3197                 switch (data_size) {
3198                 case 8:
3199                         target_buffer_set_u64(target, target_buf + i * data_size, b);
3200                         break;
3201                 case 4:
3202                         target_buffer_set_u32(target, target_buf + i * data_size, b);
3203                         break;
3204                 case 2:
3205                         target_buffer_set_u16(target, target_buf + i * data_size, b);
3206                         break;
3207                 case 1:
3208                         target_buffer_set_u8(target, target_buf + i * data_size, b);
3209                         break;
3210                 default:
3211                         exit(-1);
3212                 }
3213         }
3214
3215         int retval = ERROR_OK;
3216
3217         for (unsigned x = 0; x < c; x += chunk_size) {
3218                 unsigned current;
3219                 current = c - x;
3220                 if (current > chunk_size)
3221                         current = chunk_size;
3222                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3223                 if (retval != ERROR_OK)
3224                         break;
3225                 /* avoid GDB timeouts */
3226                 keep_alive();
3227         }
3228         free(target_buf);
3229
3230         return retval;
3231 }
3232
3233
3234 COMMAND_HANDLER(handle_mw_command)
3235 {
3236         if (CMD_ARGC < 2)
3237                 return ERROR_COMMAND_SYNTAX_ERROR;
3238         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3239         target_write_fn fn;
3240         if (physical) {
3241                 CMD_ARGC--;
3242                 CMD_ARGV++;
3243                 fn = target_write_phys_memory;
3244         } else
3245                 fn = target_write_memory;
3246         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3247                 return ERROR_COMMAND_SYNTAX_ERROR;
3248
3249         target_addr_t address;
3250         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3251
3252         target_addr_t value;
3253         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], value);
3254
3255         unsigned count = 1;
3256         if (CMD_ARGC == 3)
3257                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3258
3259         struct target *target = get_current_target(CMD_CTX);
3260         unsigned wordsize;
3261         switch (CMD_NAME[2]) {
3262                 case 'd':
3263                         wordsize = 8;
3264                         break;
3265                 case 'w':
3266                         wordsize = 4;
3267                         break;
3268                 case 'h':
3269                         wordsize = 2;
3270                         break;
3271                 case 'b':
3272                         wordsize = 1;
3273                         break;
3274                 default:
3275                         return ERROR_COMMAND_SYNTAX_ERROR;
3276         }
3277
3278         return target_fill_mem(target, address, fn, wordsize, value, count);
3279 }
3280
3281 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3282                 target_addr_t *min_address, target_addr_t *max_address)
3283 {
3284         if (CMD_ARGC < 1 || CMD_ARGC > 5)
3285                 return ERROR_COMMAND_SYNTAX_ERROR;
3286
3287         /* a base address isn't always necessary,
3288          * default to 0x0 (i.e. don't relocate) */
3289         if (CMD_ARGC >= 2) {
3290                 target_addr_t addr;
3291                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3292                 image->base_address = addr;
3293                 image->base_address_set = 1;
3294         } else
3295                 image->base_address_set = 0;
3296
3297         image->start_address_set = 0;
3298
3299         if (CMD_ARGC >= 4)
3300                 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3301         if (CMD_ARGC == 5) {
3302                 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3303                 /* use size (given) to find max (required) */
3304                 *max_address += *min_address;
3305         }
3306
3307         if (*min_address > *max_address)
3308                 return ERROR_COMMAND_SYNTAX_ERROR;
3309
3310         return ERROR_OK;
3311 }
3312
3313 COMMAND_HANDLER(handle_load_image_command)
3314 {
3315         uint8_t *buffer;
3316         size_t buf_cnt;
3317         uint32_t image_size;
3318         target_addr_t min_address = 0;
3319         target_addr_t max_address = -1;
3320         int i;
3321         struct image image;
3322
3323         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3324                         &image, &min_address, &max_address);
3325         if (ERROR_OK != retval)
3326                 return retval;
3327
3328         struct target *target = get_current_target(CMD_CTX);
3329
3330         struct duration bench;
3331         duration_start(&bench);
3332
3333         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3334                 return ERROR_FAIL;
3335
3336         image_size = 0x0;
3337         retval = ERROR_OK;
3338         for (i = 0; i < image.num_sections; i++) {
3339                 buffer = malloc(image.sections[i].size);
3340                 if (buffer == NULL) {
3341                         command_print(CMD_CTX,
3342                                                   "error allocating buffer for section (%d bytes)",
3343                                                   (int)(image.sections[i].size));
3344                         retval = ERROR_FAIL;
3345                         break;
3346                 }
3347
3348                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3349                 if (retval != ERROR_OK) {
3350                         free(buffer);
3351                         break;
3352                 }
3353
3354                 uint32_t offset = 0;
3355                 uint32_t length = buf_cnt;
3356
3357                 /* DANGER!!! beware of unsigned comparision here!!! */
3358
3359                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3360                                 (image.sections[i].base_address < max_address)) {
3361
3362                         if (image.sections[i].base_address < min_address) {
3363                                 /* clip addresses below */
3364                                 offset += min_address-image.sections[i].base_address;
3365                                 length -= offset;
3366                         }
3367
3368                         if (image.sections[i].base_address + buf_cnt > max_address)
3369                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3370
3371                         retval = target_write_buffer(target,
3372                                         image.sections[i].base_address + offset, length, buffer + offset);
3373                         if (retval != ERROR_OK) {
3374                                 free(buffer);
3375                                 break;
3376                         }
3377                         image_size += length;
3378                         command_print(CMD_CTX, "%u bytes written at address " TARGET_ADDR_FMT "",
3379                                         (unsigned int)length,
3380                                         image.sections[i].base_address + offset);
3381                 }
3382
3383                 free(buffer);
3384         }
3385
3386         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3387                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3388                                 "in %fs (%0.3f KiB/s)", image_size,
3389                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3390         }
3391
3392         image_close(&image);
3393
3394         return retval;
3395
3396 }
3397
3398 COMMAND_HANDLER(handle_dump_image_command)
3399 {
3400         struct fileio *fileio;
3401         uint8_t *buffer;
3402         int retval, retvaltemp;
3403         target_addr_t address, size;
3404         struct duration bench;
3405         struct target *target = get_current_target(CMD_CTX);
3406
3407         if (CMD_ARGC != 3)
3408                 return ERROR_COMMAND_SYNTAX_ERROR;
3409
3410         COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3411         COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3412
3413         uint32_t buf_size = (size > 4096) ? 4096 : size;
3414         buffer = malloc(buf_size);
3415         if (!buffer)
3416                 return ERROR_FAIL;
3417
3418         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3419         if (retval != ERROR_OK) {
3420                 free(buffer);
3421                 return retval;
3422         }
3423
3424         duration_start(&bench);
3425
3426         while (size > 0) {
3427                 size_t size_written;
3428                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3429                 retval = target_read_buffer(target, address, this_run_size, buffer);
3430                 if (retval != ERROR_OK)
3431                         break;
3432
3433                 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3434                 if (retval != ERROR_OK)
3435                         break;
3436
3437                 size -= this_run_size;
3438                 address += this_run_size;
3439         }
3440
3441         free(buffer);
3442
3443         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3444                 size_t filesize;
3445                 retval = fileio_size(fileio, &filesize);
3446                 if (retval != ERROR_OK)
3447                         return retval;
3448                 command_print(CMD_CTX,
3449                                 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3450                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3451         }
3452
3453         retvaltemp = fileio_close(fileio);
3454         if (retvaltemp != ERROR_OK)
3455                 return retvaltemp;
3456
3457         return retval;
3458 }
3459
3460 enum verify_mode {
3461         IMAGE_TEST = 0,
3462         IMAGE_VERIFY = 1,
3463         IMAGE_CHECKSUM_ONLY = 2
3464 };
3465
3466 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3467 {
3468         uint8_t *buffer;
3469         size_t buf_cnt;
3470         uint32_t image_size;
3471         int i;
3472         int retval;
3473         uint32_t checksum = 0;
3474         uint32_t mem_checksum = 0;
3475
3476         struct image image;
3477
3478         struct target *target = get_current_target(CMD_CTX);
3479
3480         if (CMD_ARGC < 1)
3481                 return ERROR_COMMAND_SYNTAX_ERROR;
3482
3483         if (!target) {
3484                 LOG_ERROR("no target selected");
3485                 return ERROR_FAIL;
3486         }
3487
3488         struct duration bench;
3489         duration_start(&bench);
3490
3491         if (CMD_ARGC >= 2) {
3492                 target_addr_t addr;
3493                 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3494                 image.base_address = addr;
3495                 image.base_address_set = 1;
3496         } else {
3497                 image.base_address_set = 0;
3498                 image.base_address = 0x0;
3499         }
3500
3501         image.start_address_set = 0;
3502
3503         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3504         if (retval != ERROR_OK)
3505                 return retval;
3506
3507         image_size = 0x0;
3508         int diffs = 0;
3509         retval = ERROR_OK;
3510         for (i = 0; i < image.num_sections; i++) {
3511                 buffer = malloc(image.sections[i].size);
3512                 if (buffer == NULL) {
3513                         command_print(CMD_CTX,
3514                                         "error allocating buffer for section (%d bytes)",
3515                                         (int)(image.sections[i].size));
3516                         break;
3517                 }
3518                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3519                 if (retval != ERROR_OK) {
3520                         free(buffer);
3521                         break;
3522                 }
3523
3524                 if (verify >= IMAGE_VERIFY) {
3525                         /* calculate checksum of image */
3526                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3527                         if (retval != ERROR_OK) {
3528                                 free(buffer);
3529                                 break;
3530                         }
3531
3532                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3533                         if (retval != ERROR_OK) {
3534                                 free(buffer);
3535                                 break;
3536                         }
3537                         if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3538                                 LOG_ERROR("checksum mismatch");
3539                                 free(buffer);
3540                                 retval = ERROR_FAIL;
3541                                 goto done;
3542                         }
3543                         if (checksum != mem_checksum) {
3544                                 /* failed crc checksum, fall back to a binary compare */
3545                                 uint8_t *data;
3546
3547                                 if (diffs == 0)
3548                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3549
3550                                 data = malloc(buf_cnt);
3551
3552                                 /* Can we use 32bit word accesses? */
3553                                 int size = 1;
3554                                 int count = buf_cnt;
3555                                 if ((count % 4) == 0) {
3556                                         size *= 4;
3557                                         count /= 4;
3558                                 }
3559                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3560                                 if (retval == ERROR_OK) {
3561                                         uint32_t t;
3562                                         for (t = 0; t < buf_cnt; t++) {
3563                                                 if (data[t] != buffer[t]) {
3564                                                         command_print(CMD_CTX,
3565                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3566                                                                                   diffs,
3567                                                                                   (unsigned)(t + image.sections[i].base_address),
3568                                                                                   data[t],
3569                                                                                   buffer[t]);
3570                                                         if (diffs++ >= 127) {
3571                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3572                                                                 free(data);
3573                                                                 free(buffer);
3574                                                                 goto done;
3575                                                         }
3576                                                 }
3577                                                 keep_alive();
3578                                         }
3579                                 }
3580                                 free(data);
3581                         }
3582                 } else {
3583                         command_print(CMD_CTX, "address " TARGET_ADDR_FMT " length 0x%08zx",
3584                                                   image.sections[i].base_address,
3585                                                   buf_cnt);
3586                 }
3587
3588                 free(buffer);
3589                 image_size += buf_cnt;
3590         }
3591         if (diffs > 0)
3592                 command_print(CMD_CTX, "No more differences found.");
3593 done:
3594         if (diffs > 0)
3595                 retval = ERROR_FAIL;
3596         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3597                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3598                                 "in %fs (%0.3f KiB/s)", image_size,
3599                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3600         }
3601
3602         image_close(&image);
3603
3604         return retval;
3605 }
3606
3607 COMMAND_HANDLER(handle_verify_image_checksum_command)
3608 {
3609         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3610 }
3611
3612 COMMAND_HANDLER(handle_verify_image_command)
3613 {
3614         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3615 }
3616
3617 COMMAND_HANDLER(handle_test_image_command)
3618 {
3619         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3620 }
3621
3622 static int handle_bp_command_list(struct command_context *cmd_ctx)
3623 {
3624         struct target *target = get_current_target(cmd_ctx);
3625         struct breakpoint *breakpoint = target->breakpoints;
3626         while (breakpoint) {
3627                 if (breakpoint->type == BKPT_SOFT) {
3628                         char *buf = buf_to_str(breakpoint->orig_instr,
3629                                         breakpoint->length, 16);
3630                         command_print(cmd_ctx, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3631                                         breakpoint->address,
3632                                         breakpoint->length,
3633                                         breakpoint->set, buf);
3634                         free(buf);
3635                 } else {
3636                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3637                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3638                                                         breakpoint->asid,
3639                                                         breakpoint->length, breakpoint->set);
3640                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3641                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3642                                                         breakpoint->address,
3643                                                         breakpoint->length, breakpoint->set);
3644                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3645                                                         breakpoint->asid);
3646                         } else
3647                                 command_print(cmd_ctx, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3648                                                         breakpoint->address,
3649                                                         breakpoint->length, breakpoint->set);
3650                 }
3651
3652                 breakpoint = breakpoint->next;
3653         }
3654         return ERROR_OK;
3655 }
3656
3657 static int handle_bp_command_set(struct command_context *cmd_ctx,
3658                 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3659 {
3660         struct target *target = get_current_target(cmd_ctx);
3661         int retval;
3662
3663         if (asid == 0) {
3664                 retval = breakpoint_add(target, addr, length, hw);
3665                 if (ERROR_OK == retval)
3666                         command_print(cmd_ctx, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3667                 else {
3668                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3669                         return retval;
3670                 }
3671         } else if (addr == 0) {
3672                 if (target->type->add_context_breakpoint == NULL) {
3673                         LOG_WARNING("Context breakpoint not available");
3674                         return ERROR_OK;
3675                 }
3676                 retval = context_breakpoint_add(target, asid, length, hw);
3677                 if (ERROR_OK == retval)
3678                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3679                 else {
3680                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3681                         return retval;
3682                 }
3683         } else {
3684                 if (target->type->add_hybrid_breakpoint == NULL) {
3685                         LOG_WARNING("Hybrid breakpoint not available");
3686                         return ERROR_OK;
3687                 }
3688                 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3689                 if (ERROR_OK == retval)
3690                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3691                 else {
3692                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3693                         return retval;
3694                 }
3695         }
3696         return ERROR_OK;
3697 }
3698
3699 COMMAND_HANDLER(handle_bp_command)
3700 {
3701         target_addr_t addr;
3702         uint32_t asid;
3703         uint32_t length;
3704         int hw = BKPT_SOFT;
3705
3706         switch (CMD_ARGC) {
3707                 case 0:
3708                         return handle_bp_command_list(CMD_CTX);
3709
3710                 case 2:
3711                         asid = 0;
3712                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3713                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3714                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3715
3716                 case 3:
3717                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3718                                 hw = BKPT_HARD;
3719                                 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3720                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3721                                 asid = 0;
3722                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3723                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3724                                 hw = BKPT_HARD;
3725                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3726                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3727                                 addr = 0;
3728                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3729                         }
3730                         /* fallthrough */
3731                 case 4:
3732                         hw = BKPT_HARD;
3733                         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3734                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3735                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3736                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3737
3738                 default:
3739                         return ERROR_COMMAND_SYNTAX_ERROR;
3740         }
3741 }
3742
3743 COMMAND_HANDLER(handle_rbp_command)
3744 {
3745         if (CMD_ARGC != 1)
3746                 return ERROR_COMMAND_SYNTAX_ERROR;
3747
3748         target_addr_t addr;
3749         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3750
3751         struct target *target = get_current_target(CMD_CTX);
3752         breakpoint_remove(target, addr);
3753
3754         return ERROR_OK;
3755 }
3756
3757 COMMAND_HANDLER(handle_wp_command)
3758 {
3759         struct target *target = get_current_target(CMD_CTX);
3760
3761         if (CMD_ARGC == 0) {
3762                 struct watchpoint *watchpoint = target->watchpoints;
3763
3764                 while (watchpoint) {
3765                         command_print(CMD_CTX, "address: " TARGET_ADDR_FMT
3766                                         ", len: 0x%8.8" PRIx32
3767                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3768                                         ", mask: 0x%8.8" PRIx32,
3769                                         watchpoint->address,
3770                                         watchpoint->length,
3771                                         (int)watchpoint->rw,
3772                                         watchpoint->value,
3773                                         watchpoint->mask);
3774                         watchpoint = watchpoint->next;
3775                 }
3776                 return ERROR_OK;
3777         }
3778
3779         enum watchpoint_rw type = WPT_ACCESS;
3780         uint32_t addr = 0;
3781         uint32_t length = 0;
3782         uint32_t data_value = 0x0;
3783         uint32_t data_mask = 0xffffffff;
3784
3785         switch (CMD_ARGC) {
3786         case 5:
3787                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3788                 /* fall through */
3789         case 4:
3790                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3791                 /* fall through */
3792         case 3:
3793                 switch (CMD_ARGV[2][0]) {
3794                 case 'r':
3795                         type = WPT_READ;
3796                         break;
3797                 case 'w':
3798                         type = WPT_WRITE;
3799                         break;
3800                 case 'a':
3801                         type = WPT_ACCESS;
3802                         break;
3803                 default:
3804                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3805                         return ERROR_COMMAND_SYNTAX_ERROR;
3806                 }
3807                 /* fall through */
3808         case 2:
3809                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3810                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3811                 break;
3812
3813         default:
3814                 return ERROR_COMMAND_SYNTAX_ERROR;
3815         }
3816
3817         int retval = watchpoint_add(target, addr, length, type,
3818                         data_value, data_mask);
3819         if (ERROR_OK != retval)
3820                 LOG_ERROR("Failure setting watchpoints");
3821
3822         return retval;
3823 }
3824
3825 COMMAND_HANDLER(handle_rwp_command)
3826 {
3827         if (CMD_ARGC != 1)
3828                 return ERROR_COMMAND_SYNTAX_ERROR;
3829
3830         uint32_t addr;
3831         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3832
3833         struct target *target = get_current_target(CMD_CTX);
3834         watchpoint_remove(target, addr);
3835
3836         return ERROR_OK;
3837 }
3838
3839 /**
3840  * Translate a virtual address to a physical address.
3841  *
3842  * The low-level target implementation must have logged a detailed error
3843  * which is forwarded to telnet/GDB session.
3844  */
3845 COMMAND_HANDLER(handle_virt2phys_command)
3846 {
3847         if (CMD_ARGC != 1)
3848                 return ERROR_COMMAND_SYNTAX_ERROR;
3849
3850         target_addr_t va;
3851         COMMAND_PARSE_ADDRESS(CMD_ARGV[0], va);
3852         target_addr_t pa;
3853
3854         struct target *target = get_current_target(CMD_CTX);
3855         int retval = target->type->virt2phys(target, va, &pa);
3856         if (retval == ERROR_OK)
3857                 command_print(CMD_CTX, "Physical address " TARGET_ADDR_FMT "", pa);
3858
3859         return retval;
3860 }
3861
3862 static void writeData(FILE *f, const void *data, size_t len)
3863 {
3864         size_t written = fwrite(data, 1, len, f);
3865         if (written != len)
3866                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3867 }
3868
3869 static void writeLong(FILE *f, int l, struct target *target)
3870 {
3871         uint8_t val[4];
3872
3873         target_buffer_set_u32(target, val, l);
3874         writeData(f, val, 4);
3875 }
3876
3877 static void writeString(FILE *f, char *s)
3878 {
3879         writeData(f, s, strlen(s));
3880 }
3881
3882 typedef unsigned char UNIT[2];  /* unit of profiling */
3883
3884 /* Dump a gmon.out histogram file. */
3885 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename, bool with_range,
3886                         uint32_t start_address, uint32_t end_address, struct target *target, uint32_t duration_ms)
3887 {
3888         uint32_t i;
3889         FILE *f = fopen(filename, "w");
3890         if (f == NULL)
3891                 return;
3892         writeString(f, "gmon");
3893         writeLong(f, 0x00000001, target); /* Version */
3894         writeLong(f, 0, target); /* padding */
3895         writeLong(f, 0, target); /* padding */
3896         writeLong(f, 0, target); /* padding */
3897
3898         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3899         writeData(f, &zero, 1);
3900
3901         /* figure out bucket size */
3902         uint32_t min;
3903         uint32_t max;
3904         if (with_range) {
3905                 min = start_address;
3906                 max = end_address;
3907         } else {
3908                 min = samples[0];
3909                 max = samples[0];
3910                 for (i = 0; i < sampleNum; i++) {
3911                         if (min > samples[i])
3912                                 min = samples[i];
3913                         if (max < samples[i])
3914                                 max = samples[i];
3915                 }
3916
3917                 /* max should be (largest sample + 1)
3918                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3919                 max++;
3920         }
3921
3922         int addressSpace = max - min;
3923         assert(addressSpace >= 2);
3924
3925         /* FIXME: What is the reasonable number of buckets?
3926          * The profiling result will be more accurate if there are enough buckets. */
3927         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3928         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3929         if (numBuckets > maxBuckets)
3930                 numBuckets = maxBuckets;
3931         int *buckets = malloc(sizeof(int) * numBuckets);
3932         if (buckets == NULL) {
3933                 fclose(f);
3934                 return;
3935         }
3936         memset(buckets, 0, sizeof(int) * numBuckets);
3937         for (i = 0; i < sampleNum; i++) {
3938                 uint32_t address = samples[i];
3939
3940                 if ((address < min) || (max <= address))
3941                         continue;
3942
3943                 long long a = address - min;
3944                 long long b = numBuckets;
3945                 long long c = addressSpace;
3946                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3947                 buckets[index_t]++;
3948         }
3949
3950         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3951         writeLong(f, min, target);                      /* low_pc */
3952         writeLong(f, max, target);                      /* high_pc */
3953         writeLong(f, numBuckets, target);       /* # of buckets */
3954         float sample_rate = sampleNum / (duration_ms / 1000.0);
3955         writeLong(f, sample_rate, target);
3956         writeString(f, "seconds");
3957         for (i = 0; i < (15-strlen("seconds")); i++)
3958                 writeData(f, &zero, 1);
3959         writeString(f, "s");
3960
3961         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3962
3963         char *data = malloc(2 * numBuckets);
3964         if (data != NULL) {
3965                 for (i = 0; i < numBuckets; i++) {
3966                         int val;
3967                         val = buckets[i];
3968                         if (val > 65535)
3969                                 val = 65535;
3970                         data[i * 2] = val&0xff;
3971                         data[i * 2 + 1] = (val >> 8) & 0xff;
3972                 }
3973                 free(buckets);
3974                 writeData(f, data, numBuckets * 2);
3975                 free(data);
3976         } else
3977                 free(buckets);
3978
3979         fclose(f);
3980 }
3981
3982 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3983  * which will be used as a random sampling of PC */
3984 COMMAND_HANDLER(handle_profile_command)
3985 {
3986         struct target *target = get_current_target(CMD_CTX);
3987
3988         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
3989                 return ERROR_COMMAND_SYNTAX_ERROR;
3990
3991         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
3992         uint32_t offset;
3993         uint32_t num_of_samples;
3994         int retval = ERROR_OK;
3995
3996         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], offset);
3997
3998         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
3999         if (samples == NULL) {
4000                 LOG_ERROR("No memory to store samples.");
4001                 return ERROR_FAIL;
4002         }
4003
4004         uint64_t timestart_ms = timeval_ms();
4005         /**
4006          * Some cores let us sample the PC without the
4007          * annoying halt/resume step; for example, ARMv7 PCSR.
4008          * Provide a way to use that more efficient mechanism.
4009          */
4010         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
4011                                 &num_of_samples, offset);
4012         if (retval != ERROR_OK) {
4013                 free(samples);
4014                 return retval;
4015         }
4016         uint32_t duration_ms = timeval_ms() - timestart_ms;
4017
4018         assert(num_of_samples <= MAX_PROFILE_SAMPLE_NUM);
4019
4020         retval = target_poll(target);
4021         if (retval != ERROR_OK) {
4022                 free(samples);
4023                 return retval;
4024         }
4025         if (target->state == TARGET_RUNNING) {
4026                 retval = target_halt(target);
4027                 if (retval != ERROR_OK) {
4028                         free(samples);
4029                         return retval;
4030                 }
4031         }
4032
4033         retval = target_poll(target);
4034         if (retval != ERROR_OK) {
4035                 free(samples);
4036                 return retval;
4037         }
4038
4039         uint32_t start_address = 0;
4040         uint32_t end_address = 0;
4041         bool with_range = false;
4042         if (CMD_ARGC == 4) {
4043                 with_range = true;
4044                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], start_address);
4045                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], end_address);
4046         }
4047
4048         write_gmon(samples, num_of_samples, CMD_ARGV[1],
4049                    with_range, start_address, end_address, target, duration_ms);
4050         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
4051
4052         free(samples);
4053         return retval;
4054 }
4055
4056 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
4057 {
4058         char *namebuf;
4059         Jim_Obj *nameObjPtr, *valObjPtr;
4060         int result;
4061
4062         namebuf = alloc_printf("%s(%d)", varname, idx);
4063         if (!namebuf)
4064                 return JIM_ERR;
4065
4066         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4067         valObjPtr = Jim_NewIntObj(interp, val);
4068         if (!nameObjPtr || !valObjPtr) {
4069                 free(namebuf);
4070                 return JIM_ERR;
4071         }
4072
4073         Jim_IncrRefCount(nameObjPtr);
4074         Jim_IncrRefCount(valObjPtr);
4075         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
4076         Jim_DecrRefCount(interp, nameObjPtr);
4077         Jim_DecrRefCount(interp, valObjPtr);
4078         free(namebuf);
4079         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
4080         return result;
4081 }
4082
4083 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4084 {
4085         struct command_context *context;
4086         struct target *target;
4087
4088         context = current_command_context(interp);
4089         assert(context != NULL);
4090
4091         target = get_current_target(context);
4092         if (target == NULL) {
4093                 LOG_ERROR("mem2array: no current target");
4094                 return JIM_ERR;
4095         }
4096
4097         return target_mem2array(interp, target, argc - 1, argv + 1);
4098 }
4099
4100 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
4101 {
4102         long l;
4103         uint32_t width;
4104         int len;
4105         uint32_t addr;
4106         uint32_t count;
4107         uint32_t v;
4108         const char *varname;
4109         const char *phys;
4110         bool is_phys;
4111         int  n, e, retval;
4112         uint32_t i;
4113
4114         /* argv[1] = name of array to receive the data
4115          * argv[2] = desired width
4116          * argv[3] = memory address
4117          * argv[4] = count of times to read
4118          */
4119         if (argc < 4 || argc > 5) {
4120                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems [phys]");
4121                 return JIM_ERR;
4122         }
4123         varname = Jim_GetString(argv[0], &len);
4124         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4125
4126         e = Jim_GetLong(interp, argv[1], &l);
4127         width = l;
4128         if (e != JIM_OK)
4129                 return e;
4130
4131         e = Jim_GetLong(interp, argv[2], &l);
4132         addr = l;
4133         if (e != JIM_OK)
4134                 return e;
4135         e = Jim_GetLong(interp, argv[3], &l);
4136         len = l;
4137         if (e != JIM_OK)
4138                 return e;
4139         is_phys = false;
4140         if (argc > 4) {
4141                 phys = Jim_GetString(argv[4], &n);
4142                 if (!strncmp(phys, "phys", n))
4143                         is_phys = true;
4144                 else
4145                         return JIM_ERR;
4146         }
4147         switch (width) {
4148                 case 8:
4149                         width = 1;
4150                         break;
4151                 case 16:
4152                         width = 2;
4153                         break;
4154                 case 32:
4155                         width = 4;
4156                         break;
4157                 default:
4158                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4159                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
4160                         return JIM_ERR;
4161         }
4162         if (len == 0) {
4163                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4164                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
4165                 return JIM_ERR;
4166         }
4167         if ((addr + (len * width)) < addr) {
4168                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4169                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
4170                 return JIM_ERR;
4171         }
4172         /* absurd transfer size? */
4173         if (len > 65536) {
4174                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4175                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
4176                 return JIM_ERR;
4177         }
4178
4179         if ((width == 1) ||
4180                 ((width == 2) && ((addr & 1) == 0)) ||
4181                 ((width == 4) && ((addr & 3) == 0))) {
4182                 /* all is well */
4183         } else {
4184                 char buf[100];
4185                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4186                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4187                                 addr,
4188                                 width);
4189                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4190                 return JIM_ERR;
4191         }
4192
4193         /* Transfer loop */
4194
4195         /* index counter */
4196         n = 0;
4197
4198         size_t buffersize = 4096;
4199         uint8_t *buffer = malloc(buffersize);
4200         if (buffer == NULL)
4201                 return JIM_ERR;
4202
4203         /* assume ok */
4204         e = JIM_OK;
4205         while (len) {
4206                 /* Slurp... in buffer size chunks */
4207
4208                 count = len; /* in objects.. */
4209                 if (count > (buffersize / width))
4210                         count = (buffersize / width);
4211
4212                 if (is_phys)
4213                         retval = target_read_phys_memory(target, addr, width, count, buffer);
4214                 else
4215                         retval = target_read_memory(target, addr, width, count, buffer);
4216                 if (retval != ERROR_OK) {
4217                         /* BOO !*/
4218                         LOG_ERROR("mem2array: Read @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4219                                           addr,
4220                                           width,
4221                                           count);
4222                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4223                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
4224                         e = JIM_ERR;
4225                         break;
4226                 } else {
4227                         v = 0; /* shut up gcc */
4228                         for (i = 0; i < count ; i++, n++) {
4229                                 switch (width) {
4230                                         case 4:
4231                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
4232                                                 break;
4233                                         case 2:
4234                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
4235                                                 break;
4236                                         case 1:
4237                                                 v = buffer[i] & 0x0ff;
4238                                                 break;
4239                                 }
4240                                 new_int_array_element(interp, varname, n, v);
4241                         }
4242                         len -= count;
4243                         addr += count * width;
4244                 }
4245         }
4246
4247         free(buffer);
4248
4249         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4250
4251         return e;
4252 }
4253
4254 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
4255 {
4256         char *namebuf;
4257         Jim_Obj *nameObjPtr, *valObjPtr;
4258         int result;
4259         long l;
4260
4261         namebuf = alloc_printf("%s(%d)", varname, idx);
4262         if (!namebuf)
4263                 return JIM_ERR;
4264
4265         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
4266         if (!nameObjPtr) {
4267                 free(namebuf);
4268                 return JIM_ERR;
4269         }
4270
4271         Jim_IncrRefCount(nameObjPtr);
4272         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
4273         Jim_DecrRefCount(interp, nameObjPtr);
4274         free(namebuf);
4275         if (valObjPtr == NULL)
4276                 return JIM_ERR;
4277
4278         result = Jim_GetLong(interp, valObjPtr, &l);
4279         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
4280         *val = l;
4281         return result;
4282 }
4283
4284 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4285 {
4286         struct command_context *context;
4287         struct target *target;
4288
4289         context = current_command_context(interp);
4290         assert(context != NULL);
4291
4292         target = get_current_target(context);
4293         if (target == NULL) {
4294                 LOG_ERROR("array2mem: no current target");
4295                 return JIM_ERR;
4296         }
4297
4298         return target_array2mem(interp, target, argc-1, argv + 1);
4299 }
4300
4301 static int target_array2mem(Jim_Interp *interp, struct target *target,
4302                 int argc, Jim_Obj *const *argv)
4303 {
4304         long l;
4305         uint32_t width;
4306         int len;
4307         uint32_t addr;
4308         uint32_t count;
4309         uint32_t v;
4310         const char *varname;
4311         const char *phys;
4312         bool is_phys;
4313         int  n, e, retval;
4314         uint32_t i;
4315
4316         /* argv[1] = name of array to get the data
4317          * argv[2] = desired width
4318          * argv[3] = memory address
4319          * argv[4] = count to write
4320          */
4321         if (argc < 4 || argc > 5) {
4322                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
4323                 return JIM_ERR;
4324         }
4325         varname = Jim_GetString(argv[0], &len);
4326         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
4327
4328         e = Jim_GetLong(interp, argv[1], &l);
4329         width = l;
4330         if (e != JIM_OK)
4331                 return e;
4332
4333         e = Jim_GetLong(interp, argv[2], &l);
4334         addr = l;
4335         if (e != JIM_OK)
4336                 return e;
4337         e = Jim_GetLong(interp, argv[3], &l);
4338         len = l;
4339         if (e != JIM_OK)
4340                 return e;
4341         is_phys = false;
4342         if (argc > 4) {
4343                 phys = Jim_GetString(argv[4], &n);
4344                 if (!strncmp(phys, "phys", n))
4345                         is_phys = true;
4346                 else
4347                         return JIM_ERR;
4348         }
4349         switch (width) {
4350                 case 8:
4351                         width = 1;
4352                         break;
4353                 case 16:
4354                         width = 2;
4355                         break;
4356                 case 32:
4357                         width = 4;
4358                         break;
4359                 default:
4360                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4361                         Jim_AppendStrings(interp, Jim_GetResult(interp),
4362                                         "Invalid width param, must be 8/16/32", NULL);
4363                         return JIM_ERR;
4364         }
4365         if (len == 0) {
4366                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4367                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4368                                 "array2mem: zero width read?", NULL);
4369                 return JIM_ERR;
4370         }
4371         if ((addr + (len * width)) < addr) {
4372                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4373                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4374                                 "array2mem: addr + len - wraps to zero?", NULL);
4375                 return JIM_ERR;
4376         }
4377         /* absurd transfer size? */
4378         if (len > 65536) {
4379                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4380                 Jim_AppendStrings(interp, Jim_GetResult(interp),
4381                                 "array2mem: absurd > 64K item request", NULL);
4382                 return JIM_ERR;
4383         }
4384
4385         if ((width == 1) ||
4386                 ((width == 2) && ((addr & 1) == 0)) ||
4387                 ((width == 4) && ((addr & 3) == 0))) {
4388                 /* all is well */
4389         } else {
4390                 char buf[100];
4391                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4392                 sprintf(buf, "array2mem address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
4393                                 addr,
4394                                 width);
4395                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf, NULL);
4396                 return JIM_ERR;
4397         }
4398
4399         /* Transfer loop */
4400
4401         /* index counter */
4402         n = 0;
4403         /* assume ok */
4404         e = JIM_OK;
4405
4406         size_t buffersize = 4096;
4407         uint8_t *buffer = malloc(buffersize);
4408         if (buffer == NULL)
4409                 return JIM_ERR;
4410
4411         while (len) {
4412                 /* Slurp... in buffer size chunks */
4413
4414                 count = len; /* in objects.. */
4415                 if (count > (buffersize / width))
4416                         count = (buffersize / width);
4417
4418                 v = 0; /* shut up gcc */
4419                 for (i = 0; i < count; i++, n++) {
4420                         get_int_array_element(interp, varname, n, &v);
4421                         switch (width) {
4422                         case 4:
4423                                 target_buffer_set_u32(target, &buffer[i * width], v);
4424                                 break;
4425                         case 2:
4426                                 target_buffer_set_u16(target, &buffer[i * width], v);
4427                                 break;
4428                         case 1:
4429                                 buffer[i] = v & 0x0ff;
4430                                 break;
4431                         }
4432                 }
4433                 len -= count;
4434
4435                 if (is_phys)
4436                         retval = target_write_phys_memory(target, addr, width, count, buffer);
4437                 else
4438                         retval = target_write_memory(target, addr, width, count, buffer);
4439                 if (retval != ERROR_OK) {
4440                         /* BOO !*/
4441                         LOG_ERROR("array2mem: Write @ 0x%08" PRIx32 ", w=%" PRId32 ", cnt=%" PRId32 ", failed",
4442                                           addr,
4443                                           width,
4444                                           count);
4445                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4446                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
4447                         e = JIM_ERR;
4448                         break;
4449                 }
4450                 addr += count * width;
4451         }
4452
4453         free(buffer);
4454
4455         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4456
4457         return e;
4458 }
4459
4460 /* FIX? should we propagate errors here rather than printing them
4461  * and continuing?
4462  */
4463 void target_handle_event(struct target *target, enum target_event e)
4464 {
4465         struct target_event_action *teap;
4466
4467         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4468                 if (teap->event == e) {
4469                         LOG_DEBUG("target(%d): %s (%s) event: %d (%s) action: %s",
4470                                            target->target_number,
4471                                            target_name(target),
4472                                            target_type_name(target),
4473                                            e,
4474                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
4475                                            Jim_GetString(teap->body, NULL));
4476
4477                         /* Override current target by the target an event
4478                          * is issued from (lot of scripts need it).
4479                          * Return back to previous override as soon
4480                          * as the handler processing is done */
4481                         struct command_context *cmd_ctx = current_command_context(teap->interp);
4482                         struct target *saved_target_override = cmd_ctx->current_target_override;
4483                         cmd_ctx->current_target_override = target;
4484
4485                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
4486                                 Jim_MakeErrorMessage(teap->interp);
4487                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
4488                         }
4489
4490                         cmd_ctx->current_target_override = saved_target_override;
4491                 }
4492         }
4493 }
4494
4495 /**
4496  * Returns true only if the target has a handler for the specified event.
4497  */
4498 bool target_has_event_action(struct target *target, enum target_event event)
4499 {
4500         struct target_event_action *teap;
4501
4502         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4503                 if (teap->event == event)
4504                         return true;
4505         }
4506         return false;
4507 }
4508
4509 enum target_cfg_param {
4510         TCFG_TYPE,
4511         TCFG_EVENT,
4512         TCFG_WORK_AREA_VIRT,
4513         TCFG_WORK_AREA_PHYS,
4514         TCFG_WORK_AREA_SIZE,
4515         TCFG_WORK_AREA_BACKUP,
4516         TCFG_ENDIAN,
4517         TCFG_COREID,
4518         TCFG_CHAIN_POSITION,
4519         TCFG_DBGBASE,
4520         TCFG_RTOS,
4521         TCFG_DEFER_EXAMINE,
4522 };
4523
4524 static Jim_Nvp nvp_config_opts[] = {
4525         { .name = "-type",             .value = TCFG_TYPE },
4526         { .name = "-event",            .value = TCFG_EVENT },
4527         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4528         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4529         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4530         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4531         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4532         { .name = "-coreid",           .value = TCFG_COREID },
4533         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4534         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4535         { .name = "-rtos",             .value = TCFG_RTOS },
4536         { .name = "-defer-examine",    .value = TCFG_DEFER_EXAMINE },
4537         { .name = NULL, .value = -1 }
4538 };
4539
4540 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4541 {
4542         Jim_Nvp *n;
4543         Jim_Obj *o;
4544         jim_wide w;
4545         int e;
4546
4547         /* parse config or cget options ... */
4548         while (goi->argc > 0) {
4549                 Jim_SetEmptyResult(goi->interp);
4550                 /* Jim_GetOpt_Debug(goi); */
4551
4552                 if (target->type->target_jim_configure) {
4553                         /* target defines a configure function */
4554                         /* target gets first dibs on parameters */
4555                         e = (*(target->type->target_jim_configure))(target, goi);
4556                         if (e == JIM_OK) {
4557                                 /* more? */
4558                                 continue;
4559                         }
4560                         if (e == JIM_ERR) {
4561                                 /* An error */
4562                                 return e;
4563                         }
4564                         /* otherwise we 'continue' below */
4565                 }
4566                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4567                 if (e != JIM_OK) {
4568                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4569                         return e;
4570                 }
4571                 switch (n->value) {
4572                 case TCFG_TYPE:
4573                         /* not setable */
4574                         if (goi->isconfigure) {
4575                                 Jim_SetResultFormatted(goi->interp,
4576                                                 "not settable: %s", n->name);
4577                                 return JIM_ERR;
4578                         } else {
4579 no_params:
4580                                 if (goi->argc != 0) {
4581                                         Jim_WrongNumArgs(goi->interp,
4582                                                         goi->argc, goi->argv,
4583                                                         "NO PARAMS");
4584                                         return JIM_ERR;
4585                                 }
4586                         }
4587                         Jim_SetResultString(goi->interp,
4588                                         target_type_name(target), -1);
4589                         /* loop for more */
4590                         break;
4591                 case TCFG_EVENT:
4592                         if (goi->argc == 0) {
4593                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4594                                 return JIM_ERR;
4595                         }
4596
4597                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4598                         if (e != JIM_OK) {
4599                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4600                                 return e;
4601                         }
4602
4603                         if (goi->isconfigure) {
4604                                 if (goi->argc != 1) {
4605                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4606                                         return JIM_ERR;
4607                                 }
4608                         } else {
4609                                 if (goi->argc != 0) {
4610                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4611                                         return JIM_ERR;
4612                                 }
4613                         }
4614
4615                         {
4616                                 struct target_event_action *teap;
4617
4618                                 teap = target->event_action;
4619                                 /* replace existing? */
4620                                 while (teap) {
4621                                         if (teap->event == (enum target_event)n->value)
4622                                                 break;
4623                                         teap = teap->next;
4624                                 }
4625
4626                                 if (goi->isconfigure) {
4627                                         bool replace = true;
4628                                         if (teap == NULL) {
4629                                                 /* create new */
4630                                                 teap = calloc(1, sizeof(*teap));
4631                                                 replace = false;
4632                                         }
4633                                         teap->event = n->value;
4634                                         teap->interp = goi->interp;
4635                                         Jim_GetOpt_Obj(goi, &o);
4636                                         if (teap->body)
4637                                                 Jim_DecrRefCount(teap->interp, teap->body);
4638                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4639                                         /*
4640                                          * FIXME:
4641                                          *     Tcl/TK - "tk events" have a nice feature.
4642                                          *     See the "BIND" command.
4643                                          *    We should support that here.
4644                                          *     You can specify %X and %Y in the event code.
4645                                          *     The idea is: %T - target name.
4646                                          *     The idea is: %N - target number
4647                                          *     The idea is: %E - event name.
4648                                          */
4649                                         Jim_IncrRefCount(teap->body);
4650
4651                                         if (!replace) {
4652                                                 /* add to head of event list */
4653                                                 teap->next = target->event_action;
4654                                                 target->event_action = teap;
4655                                         }
4656                                         Jim_SetEmptyResult(goi->interp);
4657                                 } else {
4658                                         /* get */
4659                                         if (teap == NULL)
4660                                                 Jim_SetEmptyResult(goi->interp);
4661                                         else
4662                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4663                                 }
4664                         }
4665                         /* loop for more */
4666                         break;
4667
4668                 case TCFG_WORK_AREA_VIRT:
4669                         if (goi->isconfigure) {
4670                                 target_free_all_working_areas(target);
4671                                 e = Jim_GetOpt_Wide(goi, &w);
4672                                 if (e != JIM_OK)
4673                                         return e;
4674                                 target->working_area_virt = w;
4675                                 target->working_area_virt_spec = true;
4676                         } else {
4677                                 if (goi->argc != 0)
4678                                         goto no_params;
4679                         }
4680                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4681                         /* loop for more */
4682                         break;
4683
4684                 case TCFG_WORK_AREA_PHYS:
4685                         if (goi->isconfigure) {
4686                                 target_free_all_working_areas(target);
4687                                 e = Jim_GetOpt_Wide(goi, &w);
4688                                 if (e != JIM_OK)
4689                                         return e;
4690                                 target->working_area_phys = w;
4691                                 target->working_area_phys_spec = true;
4692                         } else {
4693                                 if (goi->argc != 0)
4694                                         goto no_params;
4695                         }
4696                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4697                         /* loop for more */
4698                         break;
4699
4700                 case TCFG_WORK_AREA_SIZE:
4701                         if (goi->isconfigure) {
4702                                 target_free_all_working_areas(target);
4703                                 e = Jim_GetOpt_Wide(goi, &w);
4704                                 if (e != JIM_OK)
4705                                         return e;
4706                                 target->working_area_size = w;
4707                         } else {
4708                                 if (goi->argc != 0)
4709                                         goto no_params;
4710                         }
4711                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4712                         /* loop for more */
4713                         break;
4714
4715                 case TCFG_WORK_AREA_BACKUP:
4716                         if (goi->isconfigure) {
4717                                 target_free_all_working_areas(target);
4718                                 e = Jim_GetOpt_Wide(goi, &w);
4719                                 if (e != JIM_OK)
4720                                         return e;
4721                                 /* make this exactly 1 or 0 */
4722                                 target->backup_working_area = (!!w);
4723                         } else {
4724                                 if (goi->argc != 0)
4725                                         goto no_params;
4726                         }
4727                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4728                         /* loop for more e*/
4729                         break;
4730
4731
4732                 case TCFG_ENDIAN:
4733                         if (goi->isconfigure) {
4734                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4735                                 if (e != JIM_OK) {
4736                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4737                                         return e;
4738                                 }
4739                                 target->endianness = n->value;
4740                         } else {
4741                                 if (goi->argc != 0)
4742                                         goto no_params;
4743                         }
4744                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4745                         if (n->name == NULL) {
4746                                 target->endianness = TARGET_LITTLE_ENDIAN;
4747                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4748                         }
4749                         Jim_SetResultString(goi->interp, n->name, -1);
4750                         /* loop for more */
4751                         break;
4752
4753                 case TCFG_COREID:
4754                         if (goi->isconfigure) {
4755                                 e = Jim_GetOpt_Wide(goi, &w);
4756                                 if (e != JIM_OK)
4757                                         return e;
4758                                 target->coreid = (int32_t)w;
4759                         } else {
4760                                 if (goi->argc != 0)
4761                                         goto no_params;
4762                         }
4763                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4764                         /* loop for more */
4765                         break;
4766
4767                 case TCFG_CHAIN_POSITION:
4768                         if (goi->isconfigure) {
4769                                 Jim_Obj *o_t;
4770                                 struct jtag_tap *tap;
4771
4772                                 if (target->has_dap) {
4773                                         Jim_SetResultString(goi->interp,
4774                                                 "target requires -dap parameter instead of -chain-position!", -1);
4775                                         return JIM_ERR;
4776                                 }
4777
4778                                 target_free_all_working_areas(target);
4779                                 e = Jim_GetOpt_Obj(goi, &o_t);
4780                                 if (e != JIM_OK)
4781                                         return e;
4782                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4783                                 if (tap == NULL)
4784                                         return JIM_ERR;
4785                                 target->tap = tap;
4786                                 target->tap_configured = true;
4787                         } else {
4788                                 if (goi->argc != 0)
4789                                         goto no_params;
4790                         }
4791                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4792                         /* loop for more e*/
4793                         break;
4794                 case TCFG_DBGBASE:
4795                         if (goi->isconfigure) {
4796                                 e = Jim_GetOpt_Wide(goi, &w);
4797                                 if (e != JIM_OK)
4798                                         return e;
4799                                 target->dbgbase = (uint32_t)w;
4800                                 target->dbgbase_set = true;
4801                         } else {
4802                                 if (goi->argc != 0)
4803                                         goto no_params;
4804                         }
4805                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4806                         /* loop for more */
4807                         break;
4808                 case TCFG_RTOS:
4809                         /* RTOS */
4810                         {
4811                                 int result = rtos_create(goi, target);
4812                                 if (result != JIM_OK)
4813                                         return result;
4814                         }
4815                         /* loop for more */
4816                         break;
4817
4818                 case TCFG_DEFER_EXAMINE:
4819                         /* DEFER_EXAMINE */
4820                         target->defer_examine = true;
4821                         /* loop for more */
4822                         break;
4823
4824                 }
4825         } /* while (goi->argc) */
4826
4827
4828                 /* done - we return */
4829         return JIM_OK;
4830 }
4831
4832 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4833 {
4834         Jim_GetOptInfo goi;
4835
4836         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4837         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4838         if (goi.argc < 1) {
4839                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4840                                  "missing: -option ...");
4841                 return JIM_ERR;
4842         }
4843         struct target *target = Jim_CmdPrivData(goi.interp);
4844         return target_configure(&goi, target);
4845 }
4846
4847 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4848 {
4849         const char *cmd_name = Jim_GetString(argv[0], NULL);
4850
4851         Jim_GetOptInfo goi;
4852         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4853
4854         if (goi.argc < 2 || goi.argc > 4) {
4855                 Jim_SetResultFormatted(goi.interp,
4856                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4857                 return JIM_ERR;
4858         }
4859
4860         target_write_fn fn;
4861         fn = target_write_memory;
4862
4863         int e;
4864         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4865                 /* consume it */
4866                 struct Jim_Obj *obj;
4867                 e = Jim_GetOpt_Obj(&goi, &obj);
4868                 if (e != JIM_OK)
4869                         return e;
4870
4871                 fn = target_write_phys_memory;
4872         }
4873
4874         jim_wide a;
4875         e = Jim_GetOpt_Wide(&goi, &a);
4876         if (e != JIM_OK)
4877                 return e;
4878
4879         jim_wide b;
4880         e = Jim_GetOpt_Wide(&goi, &b);
4881         if (e != JIM_OK)
4882                 return e;
4883
4884         jim_wide c = 1;
4885         if (goi.argc == 1) {
4886                 e = Jim_GetOpt_Wide(&goi, &c);
4887                 if (e != JIM_OK)
4888                         return e;
4889         }
4890
4891         /* all args must be consumed */
4892         if (goi.argc != 0)
4893                 return JIM_ERR;
4894
4895         struct target *target = Jim_CmdPrivData(goi.interp);
4896         unsigned data_size;
4897         if (strcasecmp(cmd_name, "mww") == 0)
4898                 data_size = 4;
4899         else if (strcasecmp(cmd_name, "mwh") == 0)
4900                 data_size = 2;
4901         else if (strcasecmp(cmd_name, "mwb") == 0)
4902                 data_size = 1;
4903         else {
4904                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4905                 return JIM_ERR;
4906         }
4907
4908         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4909 }
4910
4911 /**
4912 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4913 *
4914 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4915 *         mdh [phys] <address> [<count>] - for 16 bit reads
4916 *         mdb [phys] <address> [<count>] - for  8 bit reads
4917 *
4918 *  Count defaults to 1.
4919 *
4920 *  Calls target_read_memory or target_read_phys_memory depending on
4921 *  the presence of the "phys" argument
4922 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4923 *  to int representation in base16.
4924 *  Also outputs read data in a human readable form using command_print
4925 *
4926 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4927 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4928 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4929 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4930 *  on success, with [<count>] number of elements.
4931 *
4932 *  In case of little endian target:
4933 *      Example1: "mdw 0x00000000"  returns "10123456"
4934 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4935 *      Example3: "mdb 0x00000000" returns "56"
4936 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4937 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4938 **/
4939 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4940 {
4941         const char *cmd_name = Jim_GetString(argv[0], NULL);
4942
4943         Jim_GetOptInfo goi;
4944         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4945
4946         if ((goi.argc < 1) || (goi.argc > 3)) {
4947                 Jim_SetResultFormatted(goi.interp,
4948                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4949                 return JIM_ERR;
4950         }
4951
4952         int (*fn)(struct target *target,
4953                         target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4954         fn = target_read_memory;
4955
4956         int e;
4957         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4958                 /* consume it */
4959                 struct Jim_Obj *obj;
4960                 e = Jim_GetOpt_Obj(&goi, &obj);
4961                 if (e != JIM_OK)
4962                         return e;
4963
4964                 fn = target_read_phys_memory;
4965         }
4966
4967         /* Read address parameter */
4968         jim_wide addr;
4969         e = Jim_GetOpt_Wide(&goi, &addr);
4970         if (e != JIM_OK)
4971                 return JIM_ERR;
4972
4973         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4974         jim_wide count;
4975         if (goi.argc == 1) {
4976                 e = Jim_GetOpt_Wide(&goi, &count);
4977                 if (e != JIM_OK)
4978                         return JIM_ERR;
4979         } else
4980                 count = 1;
4981
4982         /* all args must be consumed */
4983         if (goi.argc != 0)
4984                 return JIM_ERR;
4985
4986         jim_wide dwidth = 1; /* shut up gcc */
4987         if (strcasecmp(cmd_name, "mdw") == 0)
4988                 dwidth = 4;
4989         else if (strcasecmp(cmd_name, "mdh") == 0)
4990                 dwidth = 2;
4991         else if (strcasecmp(cmd_name, "mdb") == 0)
4992                 dwidth = 1;
4993         else {
4994                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4995                 return JIM_ERR;
4996         }
4997
4998         /* convert count to "bytes" */
4999         int bytes = count * dwidth;
5000
5001         struct target *target = Jim_CmdPrivData(goi.interp);
5002         uint8_t  target_buf[32];
5003         jim_wide x, y, z;
5004         while (bytes > 0) {
5005                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
5006
5007                 /* Try to read out next block */
5008                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
5009
5010                 if (e != ERROR_OK) {
5011                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
5012                         return JIM_ERR;
5013                 }
5014
5015                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
5016                 switch (dwidth) {
5017                 case 4:
5018                         for (x = 0; x < 16 && x < y; x += 4) {
5019                                 z = target_buffer_get_u32(target, &(target_buf[x]));
5020                                 command_print_sameline(NULL, "%08x ", (int)(z));
5021                         }
5022                         for (; (x < 16) ; x += 4)
5023                                 command_print_sameline(NULL, "         ");
5024                         break;
5025                 case 2:
5026                         for (x = 0; x < 16 && x < y; x += 2) {
5027                                 z = target_buffer_get_u16(target, &(target_buf[x]));
5028                                 command_print_sameline(NULL, "%04x ", (int)(z));
5029                         }
5030                         for (; (x < 16) ; x += 2)
5031                                 command_print_sameline(NULL, "     ");
5032                         break;
5033                 case 1:
5034                 default:
5035                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
5036                                 z = target_buffer_get_u8(target, &(target_buf[x]));
5037                                 command_print_sameline(NULL, "%02x ", (int)(z));
5038                         }
5039                         for (; (x < 16) ; x += 1)
5040                                 command_print_sameline(NULL, "   ");
5041                         break;
5042                 }
5043                 /* ascii-ify the bytes */
5044                 for (x = 0 ; x < y ; x++) {
5045                         if ((target_buf[x] >= 0x20) &&
5046                                 (target_buf[x] <= 0x7e)) {
5047                                 /* good */
5048                         } else {
5049                                 /* smack it */
5050                                 target_buf[x] = '.';
5051                         }
5052                 }
5053                 /* space pad  */
5054                 while (x < 16) {
5055                         target_buf[x] = ' ';
5056                         x++;
5057                 }
5058                 /* terminate */
5059                 target_buf[16] = 0;
5060                 /* print - with a newline */
5061                 command_print_sameline(NULL, "%s\n", target_buf);
5062                 /* NEXT... */
5063                 bytes -= 16;
5064                 addr += 16;
5065         }
5066         return JIM_OK;
5067 }
5068
5069 static int jim_target_mem2array(Jim_Interp *interp,
5070                 int argc, Jim_Obj *const *argv)
5071 {
5072         struct target *target = Jim_CmdPrivData(interp);
5073         return target_mem2array(interp, target, argc - 1, argv + 1);
5074 }
5075
5076 static int jim_target_array2mem(Jim_Interp *interp,
5077                 int argc, Jim_Obj *const *argv)
5078 {
5079         struct target *target = Jim_CmdPrivData(interp);
5080         return target_array2mem(interp, target, argc - 1, argv + 1);
5081 }
5082
5083 static int jim_target_tap_disabled(Jim_Interp *interp)
5084 {
5085         Jim_SetResultFormatted(interp, "[TAP is disabled]");
5086         return JIM_ERR;
5087 }
5088
5089 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5090 {
5091         bool allow_defer = false;
5092
5093         Jim_GetOptInfo goi;
5094         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5095         if (goi.argc > 1) {
5096                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5097                 Jim_SetResultFormatted(goi.interp,
5098                                 "usage: %s ['allow-defer']", cmd_name);
5099                 return JIM_ERR;
5100         }
5101         if (goi.argc > 0 &&
5102             strcmp(Jim_GetString(argv[1], NULL), "allow-defer") == 0) {
5103                 /* consume it */
5104                 struct Jim_Obj *obj;
5105                 int e = Jim_GetOpt_Obj(&goi, &obj);
5106                 if (e != JIM_OK)
5107                         return e;
5108                 allow_defer = true;
5109         }
5110
5111         struct target *target = Jim_CmdPrivData(interp);
5112         if (!target->tap->enabled)
5113                 return jim_target_tap_disabled(interp);
5114
5115         if (allow_defer && target->defer_examine) {
5116                 LOG_INFO("Deferring arp_examine of %s", target_name(target));
5117                 LOG_INFO("Use arp_examine command to examine it manually!");
5118                 return JIM_OK;
5119         }
5120
5121         int e = target->type->examine(target);
5122         if (e != ERROR_OK)
5123                 return JIM_ERR;
5124         return JIM_OK;
5125 }
5126
5127 static int jim_target_was_examined(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5128 {
5129         struct target *target = Jim_CmdPrivData(interp);
5130
5131         Jim_SetResultBool(interp, target_was_examined(target));
5132         return JIM_OK;
5133 }
5134
5135 static int jim_target_examine_deferred(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
5136 {
5137         struct target *target = Jim_CmdPrivData(interp);
5138
5139         Jim_SetResultBool(interp, target->defer_examine);
5140         return JIM_OK;
5141 }
5142
5143 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5144 {
5145         if (argc != 1) {
5146                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5147                 return JIM_ERR;
5148         }
5149         struct target *target = Jim_CmdPrivData(interp);
5150
5151         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
5152                 return JIM_ERR;
5153
5154         return JIM_OK;
5155 }
5156
5157 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5158 {
5159         if (argc != 1) {
5160                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5161                 return JIM_ERR;
5162         }
5163         struct target *target = Jim_CmdPrivData(interp);
5164         if (!target->tap->enabled)
5165                 return jim_target_tap_disabled(interp);
5166
5167         int e;
5168         if (!(target_was_examined(target)))
5169                 e = ERROR_TARGET_NOT_EXAMINED;
5170         else
5171                 e = target->type->poll(target);
5172         if (e != ERROR_OK)
5173                 return JIM_ERR;
5174         return JIM_OK;
5175 }
5176
5177 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5178 {
5179         Jim_GetOptInfo goi;
5180         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5181
5182         if (goi.argc != 2) {
5183                 Jim_WrongNumArgs(interp, 0, argv,
5184                                 "([tT]|[fF]|assert|deassert) BOOL");
5185                 return JIM_ERR;
5186         }
5187
5188         Jim_Nvp *n;
5189         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
5190         if (e != JIM_OK) {
5191                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
5192                 return e;
5193         }
5194         /* the halt or not param */
5195         jim_wide a;
5196         e = Jim_GetOpt_Wide(&goi, &a);
5197         if (e != JIM_OK)
5198                 return e;
5199
5200         struct target *target = Jim_CmdPrivData(goi.interp);
5201         if (!target->tap->enabled)
5202                 return jim_target_tap_disabled(interp);
5203
5204         if (!target->type->assert_reset || !target->type->deassert_reset) {
5205                 Jim_SetResultFormatted(interp,
5206                                 "No target-specific reset for %s",
5207                                 target_name(target));
5208                 return JIM_ERR;
5209         }
5210
5211         if (target->defer_examine)
5212                 target_reset_examined(target);
5213
5214         /* determine if we should halt or not. */
5215         target->reset_halt = !!a;
5216         /* When this happens - all workareas are invalid. */
5217         target_free_all_working_areas_restore(target, 0);
5218
5219         /* do the assert */
5220         if (n->value == NVP_ASSERT)
5221                 e = target->type->assert_reset(target);
5222         else
5223                 e = target->type->deassert_reset(target);
5224         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5225 }
5226
5227 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5228 {
5229         if (argc != 1) {
5230                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5231                 return JIM_ERR;
5232         }
5233         struct target *target = Jim_CmdPrivData(interp);
5234         if (!target->tap->enabled)
5235                 return jim_target_tap_disabled(interp);
5236         int e = target->type->halt(target);
5237         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
5238 }
5239
5240 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5241 {
5242         Jim_GetOptInfo goi;
5243         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5244
5245         /* params:  <name>  statename timeoutmsecs */
5246         if (goi.argc != 2) {
5247                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5248                 Jim_SetResultFormatted(goi.interp,
5249                                 "%s <state_name> <timeout_in_msec>", cmd_name);
5250                 return JIM_ERR;
5251         }
5252
5253         Jim_Nvp *n;
5254         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
5255         if (e != JIM_OK) {
5256                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
5257                 return e;
5258         }
5259         jim_wide a;
5260         e = Jim_GetOpt_Wide(&goi, &a);
5261         if (e != JIM_OK)
5262                 return e;
5263         struct target *target = Jim_CmdPrivData(interp);
5264         if (!target->tap->enabled)
5265                 return jim_target_tap_disabled(interp);
5266
5267         e = target_wait_state(target, n->value, a);
5268         if (e != ERROR_OK) {
5269                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
5270                 Jim_SetResultFormatted(goi.interp,
5271                                 "target: %s wait %s fails (%#s) %s",
5272                                 target_name(target), n->name,
5273                                 eObj, target_strerror_safe(e));
5274                 Jim_FreeNewObj(interp, eObj);
5275                 return JIM_ERR;
5276         }
5277         return JIM_OK;
5278 }
5279 /* List for human, Events defined for this target.
5280  * scripts/programs should use 'name cget -event NAME'
5281  */
5282 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5283 {
5284         struct command_context *cmd_ctx = current_command_context(interp);
5285         assert(cmd_ctx != NULL);
5286
5287         struct target *target = Jim_CmdPrivData(interp);
5288         struct target_event_action *teap = target->event_action;
5289         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
5290                                    target->target_number,
5291                                    target_name(target));
5292         command_print(cmd_ctx, "%-25s | Body", "Event");
5293         command_print(cmd_ctx, "------------------------- | "
5294                         "----------------------------------------");
5295         while (teap) {
5296                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
5297                 command_print(cmd_ctx, "%-25s | %s",
5298                                 opt->name, Jim_GetString(teap->body, NULL));
5299                 teap = teap->next;
5300         }
5301         command_print(cmd_ctx, "***END***");
5302         return JIM_OK;
5303 }
5304 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5305 {
5306         if (argc != 1) {
5307                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
5308                 return JIM_ERR;
5309         }
5310         struct target *target = Jim_CmdPrivData(interp);
5311         Jim_SetResultString(interp, target_state_name(target), -1);
5312         return JIM_OK;
5313 }
5314 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5315 {
5316         Jim_GetOptInfo goi;
5317         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5318         if (goi.argc != 1) {
5319                 const char *cmd_name = Jim_GetString(argv[0], NULL);
5320                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
5321                 return JIM_ERR;
5322         }
5323         Jim_Nvp *n;
5324         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
5325         if (e != JIM_OK) {
5326                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
5327                 return e;
5328         }
5329         struct target *target = Jim_CmdPrivData(interp);
5330         target_handle_event(target, n->value);
5331         return JIM_OK;
5332 }
5333
5334 static const struct command_registration target_instance_command_handlers[] = {
5335         {
5336                 .name = "configure",
5337                 .mode = COMMAND_CONFIG,
5338                 .jim_handler = jim_target_configure,
5339                 .help  = "configure a new target for use",
5340                 .usage = "[target_attribute ...]",
5341         },
5342         {
5343                 .name = "cget",
5344                 .mode = COMMAND_ANY,
5345                 .jim_handler = jim_target_configure,
5346                 .help  = "returns the specified target attribute",
5347                 .usage = "target_attribute",
5348         },
5349         {
5350                 .name = "mww",
5351                 .mode = COMMAND_EXEC,
5352                 .jim_handler = jim_target_mw,
5353                 .help = "Write 32-bit word(s) to target memory",
5354                 .usage = "address data [count]",
5355         },
5356         {
5357                 .name = "mwh",
5358                 .mode = COMMAND_EXEC,
5359                 .jim_handler = jim_target_mw,
5360                 .help = "Write 16-bit half-word(s) to target memory",
5361                 .usage = "address data [count]",
5362         },
5363         {
5364                 .name = "mwb",
5365                 .mode = COMMAND_EXEC,
5366                 .jim_handler = jim_target_mw,
5367                 .help = "Write byte(s) to target memory",
5368                 .usage = "address data [count]",
5369         },
5370         {
5371                 .name = "mdw",
5372                 .mode = COMMAND_EXEC,
5373                 .jim_handler = jim_target_md,
5374                 .help = "Display target memory as 32-bit words",
5375                 .usage = "address [count]",
5376         },
5377         {
5378                 .name = "mdh",
5379                 .mode = COMMAND_EXEC,
5380                 .jim_handler = jim_target_md,
5381                 .help = "Display target memory as 16-bit half-words",
5382                 .usage = "address [count]",
5383         },
5384         {
5385                 .name = "mdb",
5386                 .mode = COMMAND_EXEC,
5387                 .jim_handler = jim_target_md,
5388                 .help = "Display target memory as 8-bit bytes",
5389                 .usage = "address [count]",
5390         },
5391         {
5392                 .name = "array2mem",
5393                 .mode = COMMAND_EXEC,
5394                 .jim_handler = jim_target_array2mem,
5395                 .help = "Writes Tcl array of 8/16/32 bit numbers "
5396                         "to target memory",
5397                 .usage = "arrayname bitwidth address count",
5398         },
5399         {
5400                 .name = "mem2array",
5401                 .mode = COMMAND_EXEC,
5402                 .jim_handler = jim_target_mem2array,
5403                 .help = "Loads Tcl array of 8/16/32 bit numbers "
5404                         "from target memory",
5405                 .usage = "arrayname bitwidth address count",
5406         },
5407         {
5408                 .name = "eventlist",
5409                 .mode = COMMAND_EXEC,
5410                 .jim_handler = jim_target_event_list,
5411                 .help = "displays a table of events defined for this target",
5412         },
5413         {
5414                 .name = "curstate",
5415                 .mode = COMMAND_EXEC,
5416                 .jim_handler = jim_target_current_state,
5417                 .help = "displays the current state of this target",
5418         },
5419         {
5420                 .name = "arp_examine",
5421                 .mode = COMMAND_EXEC,
5422                 .jim_handler = jim_target_examine,
5423                 .help = "used internally for reset processing",
5424                 .usage = "arp_examine ['allow-defer']",
5425         },
5426         {
5427                 .name = "was_examined",
5428                 .mode = COMMAND_EXEC,
5429                 .jim_handler = jim_target_was_examined,
5430                 .help = "used internally for reset processing",
5431                 .usage = "was_examined",
5432         },
5433         {
5434                 .name = "examine_deferred",
5435                 .mode = COMMAND_EXEC,
5436                 .jim_handler = jim_target_examine_deferred,
5437                 .help = "used internally for reset processing",
5438                 .usage = "examine_deferred",
5439         },
5440         {
5441                 .name = "arp_halt_gdb",
5442                 .mode = COMMAND_EXEC,
5443                 .jim_handler = jim_target_halt_gdb,
5444                 .help = "used internally for reset processing to halt GDB",
5445         },
5446         {
5447                 .name = "arp_poll",
5448                 .mode = COMMAND_EXEC,
5449                 .jim_handler = jim_target_poll,
5450                 .help = "used internally for reset processing",
5451         },
5452         {
5453                 .name = "arp_reset",
5454                 .mode = COMMAND_EXEC,
5455                 .jim_handler = jim_target_reset,
5456                 .help = "used internally for reset processing",
5457         },
5458         {
5459                 .name = "arp_halt",
5460                 .mode = COMMAND_EXEC,
5461                 .jim_handler = jim_target_halt,
5462                 .help = "used internally for reset processing",
5463         },
5464         {
5465                 .name = "arp_waitstate",
5466                 .mode = COMMAND_EXEC,
5467                 .jim_handler = jim_target_wait_state,
5468                 .help = "used internally for reset processing",
5469         },
5470         {
5471                 .name = "invoke-event",
5472                 .mode = COMMAND_EXEC,
5473                 .jim_handler = jim_target_invoke_event,
5474                 .help = "invoke handler for specified event",
5475                 .usage = "event_name",
5476         },
5477         COMMAND_REGISTRATION_DONE
5478 };
5479
5480 static int target_create(Jim_GetOptInfo *goi)
5481 {
5482         Jim_Obj *new_cmd;
5483         Jim_Cmd *cmd;
5484         const char *cp;
5485         int e;
5486         int x;
5487         struct target *target;
5488         struct command_context *cmd_ctx;
5489
5490         cmd_ctx = current_command_context(goi->interp);
5491         assert(cmd_ctx != NULL);
5492
5493         if (goi->argc < 3) {
5494                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
5495                 return JIM_ERR;
5496         }
5497
5498         /* COMMAND */
5499         Jim_GetOpt_Obj(goi, &new_cmd);
5500         /* does this command exist? */
5501         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
5502         if (cmd) {
5503                 cp = Jim_GetString(new_cmd, NULL);
5504                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
5505                 return JIM_ERR;
5506         }
5507
5508         /* TYPE */
5509         e = Jim_GetOpt_String(goi, &cp, NULL);
5510         if (e != JIM_OK)
5511                 return e;
5512         struct transport *tr = get_current_transport();
5513         if (tr->override_target) {
5514                 e = tr->override_target(&cp);
5515                 if (e != ERROR_OK) {
5516                         LOG_ERROR("The selected transport doesn't support this target");
5517                         return JIM_ERR;
5518                 }
5519                 LOG_INFO("The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD");
5520         }
5521         /* now does target type exist */
5522         for (x = 0 ; target_types[x] ; x++) {
5523                 if (0 == strcmp(cp, target_types[x]->name)) {
5524                         /* found */
5525                         break;
5526                 }
5527
5528                 /* check for deprecated name */
5529                 if (target_types[x]->deprecated_name) {
5530                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
5531                                 /* found */
5532                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
5533                                 break;
5534                         }
5535                 }
5536         }
5537         if (target_types[x] == NULL) {
5538                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
5539                 for (x = 0 ; target_types[x] ; x++) {
5540                         if (target_types[x + 1]) {
5541                                 Jim_AppendStrings(goi->interp,
5542                                                                    Jim_GetResult(goi->interp),
5543                                                                    target_types[x]->name,
5544                                                                    ", ", NULL);
5545                         } else {
5546                                 Jim_AppendStrings(goi->interp,
5547                                                                    Jim_GetResult(goi->interp),
5548                                                                    " or ",
5549                                                                    target_types[x]->name, NULL);
5550                         }
5551                 }
5552                 return JIM_ERR;
5553         }
5554
5555         /* Create it */
5556         target = calloc(1, sizeof(struct target));
5557         /* set target number */
5558         target->target_number = new_target_number();
5559         cmd_ctx->current_target = target;
5560
5561         /* allocate memory for each unique target type */
5562         target->type = calloc(1, sizeof(struct target_type));
5563
5564         memcpy(target->type, target_types[x], sizeof(struct target_type));
5565
5566         /* will be set by "-endian" */
5567         target->endianness = TARGET_ENDIAN_UNKNOWN;
5568
5569         /* default to first core, override with -coreid */
5570         target->coreid = 0;
5571
5572         target->working_area        = 0x0;
5573         target->working_area_size   = 0x0;
5574         target->working_areas       = NULL;
5575         target->backup_working_area = 0;
5576
5577         target->state               = TARGET_UNKNOWN;
5578         target->debug_reason        = DBG_REASON_UNDEFINED;
5579         target->reg_cache           = NULL;
5580         target->breakpoints         = NULL;
5581         target->watchpoints         = NULL;
5582         target->next                = NULL;
5583         target->arch_info           = NULL;
5584
5585         target->verbose_halt_msg        = true;
5586
5587         target->halt_issued                     = false;
5588
5589         /* initialize trace information */
5590         target->trace_info = calloc(1, sizeof(struct trace));
5591
5592         target->dbgmsg          = NULL;
5593         target->dbg_msg_enabled = 0;
5594
5595         target->endianness = TARGET_ENDIAN_UNKNOWN;
5596
5597         target->rtos = NULL;
5598         target->rtos_auto_detect = false;
5599
5600         /* Do the rest as "configure" options */
5601         goi->isconfigure = 1;
5602         e = target_configure(goi, target);
5603
5604         if (e == JIM_OK) {
5605                 if (target->has_dap) {
5606                         if (!target->dap_configured) {
5607                                 Jim_SetResultString(goi->interp, "-dap ?name? required when creating target", -1);
5608                                 e = JIM_ERR;
5609                         }
5610                 } else {
5611                         if (!target->tap_configured) {
5612                                 Jim_SetResultString(goi->interp, "-chain-position ?name? required when creating target", -1);
5613                                 e = JIM_ERR;
5614                         }
5615                 }
5616                 /* tap must be set after target was configured */
5617                 if (target->tap == NULL)
5618                         e = JIM_ERR;
5619         }
5620
5621         if (e != JIM_OK) {
5622                 free(target->type);
5623                 free(target);
5624                 return e;
5625         }
5626
5627         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5628                 /* default endian to little if not specified */
5629                 target->endianness = TARGET_LITTLE_ENDIAN;
5630         }
5631
5632         cp = Jim_GetString(new_cmd, NULL);
5633         target->cmd_name = strdup(cp);
5634
5635         if (target->type->target_create) {
5636                 e = (*(target->type->target_create))(target, goi->interp);
5637                 if (e != ERROR_OK) {
5638                         LOG_DEBUG("target_create failed");
5639                         free(target->type);
5640                         free(target->cmd_name);
5641                         free(target);
5642                         return JIM_ERR;
5643                 }
5644         }
5645
5646         /* create the target specific commands */
5647         if (target->type->commands) {
5648                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5649                 if (ERROR_OK != e)
5650                         LOG_ERROR("unable to register '%s' commands", cp);
5651         }
5652
5653         /* append to end of list */
5654         {
5655                 struct target **tpp;
5656                 tpp = &(all_targets);
5657                 while (*tpp)
5658                         tpp = &((*tpp)->next);
5659                 *tpp = target;
5660         }
5661
5662         /* now - create the new target name command */
5663         const struct command_registration target_subcommands[] = {
5664                 {
5665                         .chain = target_instance_command_handlers,
5666                 },
5667                 {
5668                         .chain = target->type->commands,
5669                 },
5670                 COMMAND_REGISTRATION_DONE
5671         };
5672         const struct command_registration target_commands[] = {
5673                 {
5674                         .name = cp,
5675                         .mode = COMMAND_ANY,
5676                         .help = "target command group",
5677                         .usage = "",
5678                         .chain = target_subcommands,
5679                 },
5680                 COMMAND_REGISTRATION_DONE
5681         };
5682         e = register_commands(cmd_ctx, NULL, target_commands);
5683         if (ERROR_OK != e)
5684                 return JIM_ERR;
5685
5686         struct command *c = command_find_in_context(cmd_ctx, cp);
5687         assert(c);
5688         command_set_handler_data(c, target);
5689
5690         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5691 }
5692
5693 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5694 {
5695         if (argc != 1) {
5696                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5697                 return JIM_ERR;
5698         }
5699         struct command_context *cmd_ctx = current_command_context(interp);
5700         assert(cmd_ctx != NULL);
5701
5702         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5703         return JIM_OK;
5704 }
5705
5706 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5707 {
5708         if (argc != 1) {
5709                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5710                 return JIM_ERR;
5711         }
5712         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5713         for (unsigned x = 0; NULL != target_types[x]; x++) {
5714                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5715                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5716         }
5717         return JIM_OK;
5718 }
5719
5720 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5721 {
5722         if (argc != 1) {
5723                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5724                 return JIM_ERR;
5725         }
5726         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5727         struct target *target = all_targets;
5728         while (target) {
5729                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5730                         Jim_NewStringObj(interp, target_name(target), -1));
5731                 target = target->next;
5732         }
5733         return JIM_OK;
5734 }
5735
5736 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5737 {
5738         int i;
5739         const char *targetname;
5740         int retval, len;
5741         struct target *target = (struct target *) NULL;
5742         struct target_list *head, *curr, *new;
5743         curr = (struct target_list *) NULL;
5744         head = (struct target_list *) NULL;
5745
5746         retval = 0;
5747         LOG_DEBUG("%d", argc);
5748         /* argv[1] = target to associate in smp
5749          * argv[2] = target to assoicate in smp
5750          * argv[3] ...
5751          */
5752
5753         for (i = 1; i < argc; i++) {
5754
5755                 targetname = Jim_GetString(argv[i], &len);
5756                 target = get_target(targetname);
5757                 LOG_DEBUG("%s ", targetname);
5758                 if (target) {
5759                         new = malloc(sizeof(struct target_list));
5760                         new->target = target;
5761                         new->next = (struct target_list *)NULL;
5762                         if (head == (struct target_list *)NULL) {
5763                                 head = new;
5764                                 curr = head;
5765                         } else {
5766                                 curr->next = new;
5767                                 curr = new;
5768                         }
5769                 }
5770         }
5771         /*  now parse the list of cpu and put the target in smp mode*/
5772         curr = head;
5773
5774         while (curr != (struct target_list *)NULL) {
5775                 target = curr->target;
5776                 target->smp = 1;
5777                 target->head = head;
5778                 curr = curr->next;
5779         }
5780
5781         if (target && target->rtos)
5782                 retval = rtos_smp_init(head->target);
5783
5784         return retval;
5785 }
5786
5787
5788 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5789 {
5790         Jim_GetOptInfo goi;
5791         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5792         if (goi.argc < 3) {
5793                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5794                         "<name> <target_type> [<target_options> ...]");
5795                 return JIM_ERR;
5796         }
5797         return target_create(&goi);
5798 }
5799
5800 static const struct command_registration target_subcommand_handlers[] = {
5801         {
5802                 .name = "init",
5803                 .mode = COMMAND_CONFIG,
5804                 .handler = handle_target_init_command,
5805                 .help = "initialize targets",
5806         },
5807         {
5808                 .name = "create",
5809                 /* REVISIT this should be COMMAND_CONFIG ... */
5810                 .mode = COMMAND_ANY,
5811                 .jim_handler = jim_target_create,
5812                 .usage = "name type '-chain-position' name [options ...]",
5813                 .help = "Creates and selects a new target",
5814         },
5815         {
5816                 .name = "current",
5817                 .mode = COMMAND_ANY,
5818                 .jim_handler = jim_target_current,
5819                 .help = "Returns the currently selected target",
5820         },
5821         {
5822                 .name = "types",
5823                 .mode = COMMAND_ANY,
5824                 .jim_handler = jim_target_types,
5825                 .help = "Returns the available target types as "
5826                                 "a list of strings",
5827         },
5828         {
5829                 .name = "names",
5830                 .mode = COMMAND_ANY,
5831                 .jim_handler = jim_target_names,
5832                 .help = "Returns the names of all targets as a list of strings",
5833         },
5834         {
5835                 .name = "smp",
5836                 .mode = COMMAND_ANY,
5837                 .jim_handler = jim_target_smp,
5838                 .usage = "targetname1 targetname2 ...",
5839                 .help = "gather several target in a smp list"
5840         },
5841
5842         COMMAND_REGISTRATION_DONE
5843 };
5844
5845 struct FastLoad {
5846         target_addr_t address;
5847         uint8_t *data;
5848         int length;
5849
5850 };
5851
5852 static int fastload_num;
5853 static struct FastLoad *fastload;
5854
5855 static void free_fastload(void)
5856 {
5857         if (fastload != NULL) {
5858                 int i;
5859                 for (i = 0; i < fastload_num; i++) {
5860                         if (fastload[i].data)
5861                                 free(fastload[i].data);
5862                 }
5863                 free(fastload);
5864                 fastload = NULL;
5865         }
5866 }
5867
5868 COMMAND_HANDLER(handle_fast_load_image_command)
5869 {
5870         uint8_t *buffer;
5871         size_t buf_cnt;
5872         uint32_t image_size;
5873         target_addr_t min_address = 0;
5874         target_addr_t max_address = -1;
5875         int i;
5876
5877         struct image image;
5878
5879         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5880                         &image, &min_address, &max_address);
5881         if (ERROR_OK != retval)
5882                 return retval;
5883
5884         struct duration bench;
5885         duration_start(&bench);
5886
5887         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5888         if (retval != ERROR_OK)
5889                 return retval;
5890
5891         image_size = 0x0;
5892         retval = ERROR_OK;
5893         fastload_num = image.num_sections;
5894         fastload = malloc(sizeof(struct FastLoad)*image.num_sections);
5895         if (fastload == NULL) {
5896                 command_print(CMD_CTX, "out of memory");
5897                 image_close(&image);
5898                 return ERROR_FAIL;
5899         }
5900         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5901         for (i = 0; i < image.num_sections; i++) {
5902                 buffer = malloc(image.sections[i].size);
5903                 if (buffer == NULL) {
5904                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5905                                                   (int)(image.sections[i].size));
5906                         retval = ERROR_FAIL;
5907                         break;
5908                 }
5909
5910                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5911                 if (retval != ERROR_OK) {
5912                         free(buffer);
5913                         break;
5914                 }
5915
5916                 uint32_t offset = 0;
5917                 uint32_t length = buf_cnt;
5918
5919                 /* DANGER!!! beware of unsigned comparision here!!! */
5920
5921                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5922                                 (image.sections[i].base_address < max_address)) {
5923                         if (image.sections[i].base_address < min_address) {
5924                                 /* clip addresses below */
5925                                 offset += min_address-image.sections[i].base_address;
5926                                 length -= offset;
5927                         }
5928
5929                         if (image.sections[i].base_address + buf_cnt > max_address)
5930                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5931
5932                         fastload[i].address = image.sections[i].base_address + offset;
5933                         fastload[i].data = malloc(length);
5934                         if (fastload[i].data == NULL) {
5935                                 free(buffer);
5936                                 command_print(CMD_CTX, "error allocating buffer for section (%" PRIu32 " bytes)",
5937                                                           length);
5938                                 retval = ERROR_FAIL;
5939                                 break;
5940                         }
5941                         memcpy(fastload[i].data, buffer + offset, length);
5942                         fastload[i].length = length;
5943
5944                         image_size += length;
5945                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5946                                                   (unsigned int)length,
5947                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5948                 }
5949
5950                 free(buffer);
5951         }
5952
5953         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5954                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5955                                 "in %fs (%0.3f KiB/s)", image_size,
5956                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5957
5958                 command_print(CMD_CTX,
5959                                 "WARNING: image has not been loaded to target!"
5960                                 "You can issue a 'fast_load' to finish loading.");
5961         }
5962
5963         image_close(&image);
5964
5965         if (retval != ERROR_OK)
5966                 free_fastload();
5967
5968         return retval;
5969 }
5970
5971 COMMAND_HANDLER(handle_fast_load_command)
5972 {
5973         if (CMD_ARGC > 0)
5974                 return ERROR_COMMAND_SYNTAX_ERROR;
5975         if (fastload == NULL) {
5976                 LOG_ERROR("No image in memory");
5977                 return ERROR_FAIL;
5978         }
5979         int i;
5980         int64_t ms = timeval_ms();
5981         int size = 0;
5982         int retval = ERROR_OK;
5983         for (i = 0; i < fastload_num; i++) {
5984                 struct target *target = get_current_target(CMD_CTX);
5985                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5986                                           (unsigned int)(fastload[i].address),
5987                                           (unsigned int)(fastload[i].length));
5988                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5989                 if (retval != ERROR_OK)
5990                         break;
5991                 size += fastload[i].length;
5992         }
5993         if (retval == ERROR_OK) {
5994                 int64_t after = timeval_ms();
5995                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5996         }
5997         return retval;
5998 }
5999
6000 static const struct command_registration target_command_handlers[] = {
6001         {
6002                 .name = "targets",
6003                 .handler = handle_targets_command,
6004                 .mode = COMMAND_ANY,
6005                 .help = "change current default target (one parameter) "
6006                         "or prints table of all targets (no parameters)",
6007                 .usage = "[target]",
6008         },
6009         {
6010                 .name = "target",
6011                 .mode = COMMAND_CONFIG,
6012                 .help = "configure target",
6013
6014                 .chain = target_subcommand_handlers,
6015         },
6016         COMMAND_REGISTRATION_DONE
6017 };
6018
6019 int target_register_commands(struct command_context *cmd_ctx)
6020 {
6021         return register_commands(cmd_ctx, NULL, target_command_handlers);
6022 }
6023
6024 static bool target_reset_nag = true;
6025
6026 bool get_target_reset_nag(void)
6027 {
6028         return target_reset_nag;
6029 }
6030
6031 COMMAND_HANDLER(handle_target_reset_nag)
6032 {
6033         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
6034                         &target_reset_nag, "Nag after each reset about options to improve "
6035                         "performance");
6036 }
6037
6038 COMMAND_HANDLER(handle_ps_command)
6039 {
6040         struct target *target = get_current_target(CMD_CTX);
6041         char *display;
6042         if (target->state != TARGET_HALTED) {
6043                 LOG_INFO("target not halted !!");
6044                 return ERROR_OK;
6045         }
6046
6047         if ((target->rtos) && (target->rtos->type)
6048                         && (target->rtos->type->ps_command)) {
6049                 display = target->rtos->type->ps_command(target);
6050                 command_print(CMD_CTX, "%s", display);
6051                 free(display);
6052                 return ERROR_OK;
6053         } else {
6054                 LOG_INFO("failed");
6055                 return ERROR_TARGET_FAILURE;
6056         }
6057 }
6058
6059 static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
6060 {
6061         if (text != NULL)
6062                 command_print_sameline(cmd_ctx, "%s", text);
6063         for (int i = 0; i < size; i++)
6064                 command_print_sameline(cmd_ctx, " %02x", buf[i]);
6065         command_print(cmd_ctx, " ");
6066 }
6067
6068 COMMAND_HANDLER(handle_test_mem_access_command)
6069 {
6070         struct target *target = get_current_target(CMD_CTX);
6071         uint32_t test_size;
6072         int retval = ERROR_OK;
6073
6074         if (target->state != TARGET_HALTED) {
6075                 LOG_INFO("target not halted !!");
6076                 return ERROR_FAIL;
6077         }
6078
6079         if (CMD_ARGC != 1)
6080                 return ERROR_COMMAND_SYNTAX_ERROR;
6081
6082         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
6083
6084         /* Test reads */
6085         size_t num_bytes = test_size + 4;
6086
6087         struct working_area *wa = NULL;
6088         retval = target_alloc_working_area(target, num_bytes, &wa);
6089         if (retval != ERROR_OK) {
6090                 LOG_ERROR("Not enough working area");
6091                 return ERROR_FAIL;
6092         }
6093
6094         uint8_t *test_pattern = malloc(num_bytes);
6095
6096         for (size_t i = 0; i < num_bytes; i++)
6097                 test_pattern[i] = rand();
6098
6099         retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6100         if (retval != ERROR_OK) {
6101                 LOG_ERROR("Test pattern write failed");
6102                 goto out;
6103         }
6104
6105         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6106                 for (int size = 1; size <= 4; size *= 2) {
6107                         for (int offset = 0; offset < 4; offset++) {
6108                                 uint32_t count = test_size / size;
6109                                 size_t host_bufsiz = (count + 2) * size + host_offset;
6110                                 uint8_t *read_ref = malloc(host_bufsiz);
6111                                 uint8_t *read_buf = malloc(host_bufsiz);
6112
6113                                 for (size_t i = 0; i < host_bufsiz; i++) {
6114                                         read_ref[i] = rand();
6115                                         read_buf[i] = read_ref[i];
6116                                 }
6117                                 command_print_sameline(CMD_CTX,
6118                                                 "Test read %" PRIu32 " x %d @ %d to %saligned buffer: ", count,
6119                                                 size, offset, host_offset ? "un" : "");
6120
6121                                 struct duration bench;
6122                                 duration_start(&bench);
6123
6124                                 retval = target_read_memory(target, wa->address + offset, size, count,
6125                                                 read_buf + size + host_offset);
6126
6127                                 duration_measure(&bench);
6128
6129                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6130                                         command_print(CMD_CTX, "Unsupported alignment");
6131                                         goto next;
6132                                 } else if (retval != ERROR_OK) {
6133                                         command_print(CMD_CTX, "Memory read failed");
6134                                         goto next;
6135                                 }
6136
6137                                 /* replay on host */
6138                                 memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
6139
6140                                 /* check result */
6141                                 int result = memcmp(read_ref, read_buf, host_bufsiz);
6142                                 if (result == 0) {
6143                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6144                                                         duration_elapsed(&bench),
6145                                                         duration_kbps(&bench, count * size));
6146                                 } else {
6147                                         command_print(CMD_CTX, "Compare failed");
6148                                         binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
6149                                         binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
6150                                 }
6151 next:
6152                                 free(read_ref);
6153                                 free(read_buf);
6154                         }
6155                 }
6156         }
6157
6158 out:
6159         free(test_pattern);
6160
6161         if (wa != NULL)
6162                 target_free_working_area(target, wa);
6163
6164         /* Test writes */
6165         num_bytes = test_size + 4 + 4 + 4;
6166
6167         retval = target_alloc_working_area(target, num_bytes, &wa);
6168         if (retval != ERROR_OK) {
6169                 LOG_ERROR("Not enough working area");
6170                 return ERROR_FAIL;
6171         }
6172
6173         test_pattern = malloc(num_bytes);
6174
6175         for (size_t i = 0; i < num_bytes; i++)
6176                 test_pattern[i] = rand();
6177
6178         for (int host_offset = 0; host_offset <= 1; host_offset++) {
6179                 for (int size = 1; size <= 4; size *= 2) {
6180                         for (int offset = 0; offset < 4; offset++) {
6181                                 uint32_t count = test_size / size;
6182                                 size_t host_bufsiz = count * size + host_offset;
6183                                 uint8_t *read_ref = malloc(num_bytes);
6184                                 uint8_t *read_buf = malloc(num_bytes);
6185                                 uint8_t *write_buf = malloc(host_bufsiz);
6186
6187                                 for (size_t i = 0; i < host_bufsiz; i++)
6188                                         write_buf[i] = rand();
6189                                 command_print_sameline(CMD_CTX,
6190                                                 "Test write %" PRIu32 " x %d @ %d from %saligned buffer: ", count,
6191                                                 size, offset, host_offset ? "un" : "");
6192
6193                                 retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
6194                                 if (retval != ERROR_OK) {
6195                                         command_print(CMD_CTX, "Test pattern write failed");
6196                                         goto nextw;
6197                                 }
6198
6199                                 /* replay on host */
6200                                 memcpy(read_ref, test_pattern, num_bytes);
6201                                 memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
6202
6203                                 struct duration bench;
6204                                 duration_start(&bench);
6205
6206                                 retval = target_write_memory(target, wa->address + size + offset, size, count,
6207                                                 write_buf + host_offset);
6208
6209                                 duration_measure(&bench);
6210
6211                                 if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
6212                                         command_print(CMD_CTX, "Unsupported alignment");
6213                                         goto nextw;
6214                                 } else if (retval != ERROR_OK) {
6215                                         command_print(CMD_CTX, "Memory write failed");
6216                                         goto nextw;
6217                                 }
6218
6219                                 /* read back */
6220                                 retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
6221                                 if (retval != ERROR_OK) {
6222                                         command_print(CMD_CTX, "Test pattern write failed");
6223                                         goto nextw;
6224                                 }
6225
6226                                 /* check result */
6227                                 int result = memcmp(read_ref, read_buf, num_bytes);
6228                                 if (result == 0) {
6229                                         command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
6230                                                         duration_elapsed(&bench),
6231                                                         duration_kbps(&bench, count * size));
6232                                 } else {
6233                                         command_print(CMD_CTX, "Compare failed");
6234                                         binprint(CMD_CTX, "ref:", read_ref, num_bytes);
6235                                         binprint(CMD_CTX, "buf:", read_buf, num_bytes);
6236                                 }
6237 nextw:
6238                                 free(read_ref);
6239                                 free(read_buf);
6240                         }
6241                 }
6242         }
6243
6244         free(test_pattern);
6245
6246         if (wa != NULL)
6247                 target_free_working_area(target, wa);
6248         return retval;
6249 }
6250
6251 static const struct command_registration target_exec_command_handlers[] = {
6252         {
6253                 .name = "fast_load_image",
6254                 .handler = handle_fast_load_image_command,
6255                 .mode = COMMAND_ANY,
6256                 .help = "Load image into server memory for later use by "
6257                         "fast_load; primarily for profiling",
6258                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6259                         "[min_address [max_length]]",
6260         },
6261         {
6262                 .name = "fast_load",
6263                 .handler = handle_fast_load_command,
6264                 .mode = COMMAND_EXEC,
6265                 .help = "loads active fast load image to current target "
6266                         "- mainly for profiling purposes",
6267                 .usage = "",
6268         },
6269         {
6270                 .name = "profile",
6271                 .handler = handle_profile_command,
6272                 .mode = COMMAND_EXEC,
6273                 .usage = "seconds filename [start end]",
6274                 .help = "profiling samples the CPU PC",
6275         },
6276         /** @todo don't register virt2phys() unless target supports it */
6277         {
6278                 .name = "virt2phys",
6279                 .handler = handle_virt2phys_command,
6280                 .mode = COMMAND_ANY,
6281                 .help = "translate a virtual address into a physical address",
6282                 .usage = "virtual_address",
6283         },
6284         {
6285                 .name = "reg",
6286                 .handler = handle_reg_command,
6287                 .mode = COMMAND_EXEC,
6288                 .help = "display (reread from target with \"force\") or set a register; "
6289                         "with no arguments, displays all registers and their values",
6290                 .usage = "[(register_number|register_name) [(value|'force')]]",
6291         },
6292         {
6293                 .name = "poll",
6294                 .handler = handle_poll_command,
6295                 .mode = COMMAND_EXEC,
6296                 .help = "poll target state; or reconfigure background polling",
6297                 .usage = "['on'|'off']",
6298         },
6299         {
6300                 .name = "wait_halt",
6301                 .handler = handle_wait_halt_command,
6302                 .mode = COMMAND_EXEC,
6303                 .help = "wait up to the specified number of milliseconds "
6304                         "(default 5000) for a previously requested halt",
6305                 .usage = "[milliseconds]",
6306         },
6307         {
6308                 .name = "halt",
6309                 .handler = handle_halt_command,
6310                 .mode = COMMAND_EXEC,
6311                 .help = "request target to halt, then wait up to the specified"
6312                         "number of milliseconds (default 5000) for it to complete",
6313                 .usage = "[milliseconds]",
6314         },
6315         {
6316                 .name = "resume",
6317                 .handler = handle_resume_command,
6318                 .mode = COMMAND_EXEC,
6319                 .help = "resume target execution from current PC or address",
6320                 .usage = "[address]",
6321         },
6322         {
6323                 .name = "reset",
6324                 .handler = handle_reset_command,
6325                 .mode = COMMAND_EXEC,
6326                 .usage = "[run|halt|init]",
6327                 .help = "Reset all targets into the specified mode."
6328                         "Default reset mode is run, if not given.",
6329         },
6330         {
6331                 .name = "soft_reset_halt",
6332                 .handler = handle_soft_reset_halt_command,
6333                 .mode = COMMAND_EXEC,
6334                 .usage = "",
6335                 .help = "halt the target and do a soft reset",
6336         },
6337         {
6338                 .name = "step",
6339                 .handler = handle_step_command,
6340                 .mode = COMMAND_EXEC,
6341                 .help = "step one instruction from current PC or address",
6342                 .usage = "[address]",
6343         },
6344         {
6345                 .name = "mdd",
6346                 .handler = handle_md_command,
6347                 .mode = COMMAND_EXEC,
6348                 .help = "display memory words",
6349                 .usage = "['phys'] address [count]",
6350         },
6351         {
6352                 .name = "mdw",
6353                 .handler = handle_md_command,
6354                 .mode = COMMAND_EXEC,
6355                 .help = "display memory words",
6356                 .usage = "['phys'] address [count]",
6357         },
6358         {
6359                 .name = "mdh",
6360                 .handler = handle_md_command,
6361                 .mode = COMMAND_EXEC,
6362                 .help = "display memory half-words",
6363                 .usage = "['phys'] address [count]",
6364         },
6365         {
6366                 .name = "mdb",
6367                 .handler = handle_md_command,
6368                 .mode = COMMAND_EXEC,
6369                 .help = "display memory bytes",
6370                 .usage = "['phys'] address [count]",
6371         },
6372         {
6373                 .name = "mwd",
6374                 .handler = handle_mw_command,
6375                 .mode = COMMAND_EXEC,
6376                 .help = "write memory word",
6377                 .usage = "['phys'] address value [count]",
6378         },
6379         {
6380                 .name = "mww",
6381                 .handler = handle_mw_command,
6382                 .mode = COMMAND_EXEC,
6383                 .help = "write memory word",
6384                 .usage = "['phys'] address value [count]",
6385         },
6386         {
6387                 .name = "mwh",
6388                 .handler = handle_mw_command,
6389                 .mode = COMMAND_EXEC,
6390                 .help = "write memory half-word",
6391                 .usage = "['phys'] address value [count]",
6392         },
6393         {
6394                 .name = "mwb",
6395                 .handler = handle_mw_command,
6396                 .mode = COMMAND_EXEC,
6397                 .help = "write memory byte",
6398                 .usage = "['phys'] address value [count]",
6399         },
6400         {
6401                 .name = "bp",
6402                 .handler = handle_bp_command,
6403                 .mode = COMMAND_EXEC,
6404                 .help = "list or set hardware or software breakpoint",
6405                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
6406         },
6407         {
6408                 .name = "rbp",
6409                 .handler = handle_rbp_command,
6410                 .mode = COMMAND_EXEC,
6411                 .help = "remove breakpoint",
6412                 .usage = "address",
6413         },
6414         {
6415                 .name = "wp",
6416                 .handler = handle_wp_command,
6417                 .mode = COMMAND_EXEC,
6418                 .help = "list (no params) or create watchpoints",
6419                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
6420         },
6421         {
6422                 .name = "rwp",
6423                 .handler = handle_rwp_command,
6424                 .mode = COMMAND_EXEC,
6425                 .help = "remove watchpoint",
6426                 .usage = "address",
6427         },
6428         {
6429                 .name = "load_image",
6430                 .handler = handle_load_image_command,
6431                 .mode = COMMAND_EXEC,
6432                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
6433                         "[min_address] [max_length]",
6434         },
6435         {
6436                 .name = "dump_image",
6437                 .handler = handle_dump_image_command,
6438                 .mode = COMMAND_EXEC,
6439                 .usage = "filename address size",
6440         },
6441         {
6442                 .name = "verify_image_checksum",
6443                 .handler = handle_verify_image_checksum_command,
6444                 .mode = COMMAND_EXEC,
6445                 .usage = "filename [offset [type]]",
6446         },
6447         {
6448                 .name = "verify_image",
6449                 .handler = handle_verify_image_command,
6450                 .mode = COMMAND_EXEC,
6451                 .usage = "filename [offset [type]]",
6452         },
6453         {
6454                 .name = "test_image",
6455                 .handler = handle_test_image_command,
6456                 .mode = COMMAND_EXEC,
6457                 .usage = "filename [offset [type]]",
6458         },
6459         {
6460                 .name = "mem2array",
6461                 .mode = COMMAND_EXEC,
6462                 .jim_handler = jim_mem2array,
6463                 .help = "read 8/16/32 bit memory and return as a TCL array "
6464                         "for script processing",
6465                 .usage = "arrayname bitwidth address count",
6466         },
6467         {
6468                 .name = "array2mem",
6469                 .mode = COMMAND_EXEC,
6470                 .jim_handler = jim_array2mem,
6471                 .help = "convert a TCL array to memory locations "
6472                         "and write the 8/16/32 bit values",
6473                 .usage = "arrayname bitwidth address count",
6474         },
6475         {
6476                 .name = "reset_nag",
6477                 .handler = handle_target_reset_nag,
6478                 .mode = COMMAND_ANY,
6479                 .help = "Nag after each reset about options that could have been "
6480                                 "enabled to improve performance. ",
6481                 .usage = "['enable'|'disable']",
6482         },
6483         {
6484                 .name = "ps",
6485                 .handler = handle_ps_command,
6486                 .mode = COMMAND_EXEC,
6487                 .help = "list all tasks ",
6488                 .usage = " ",
6489         },
6490         {
6491                 .name = "test_mem_access",
6492                 .handler = handle_test_mem_access_command,
6493                 .mode = COMMAND_EXEC,
6494                 .help = "Test the target's memory access functions",
6495                 .usage = "size",
6496         },
6497
6498         COMMAND_REGISTRATION_DONE
6499 };
6500 static int target_register_user_commands(struct command_context *cmd_ctx)
6501 {
6502         int retval = ERROR_OK;
6503         retval = target_request_register_commands(cmd_ctx);
6504         if (retval != ERROR_OK)
6505                 return retval;
6506
6507         retval = trace_register_commands(cmd_ctx);
6508         if (retval != ERROR_OK)
6509                 return retval;
6510
6511
6512         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
6513 }