src/target/hla_target.c

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Mathias Kuester                                 *
   3  *   Mathias Kuester <kesmtp@freenet.de>                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2011 by Spencer Oliver                                  *
   6  *   spen@spen-soft.co.uk                                                  *
   7  *                                                                         *
   8  *   revised:  4/25/13 by brent@mbari.org [DCC target request support]     *
   9  *                                                                         *
  10  *   This program is free software; you can redistribute it and/or modify  *
  11  *   it under the terms of the GNU General Public License as published by  *
  12  *   the Free Software Foundation; either version 2 of the License, or     *
  13  *   (at your option) any later version.                                   *
  14  *                                                                         *
  15  *   This program is distributed in the hope that it will be useful,       *
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  *   GNU General Public License for more details.                          *
  19  *                                                                         *
  20  *   You should have received a copy of the GNU General Public License     *
  21  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  22  ***************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #include "jtag/interface.h"
  29 #include "jtag/jtag.h"
  30 #include "jtag/hla/hla_transport.h"
  31 #include "jtag/hla/hla_interface.h"
  32 #include "jtag/hla/hla_layout.h"
  33 #include "register.h"
  34 #include "algorithm.h"
  35 #include "target.h"
  36 #include "breakpoints.h"
  37 #include "target_type.h"
  38 #include "armv7m.h"
  39 #include "cortex_m.h"
  40 #include "arm_adi_v5.h"
  41 #include "arm_semihosting.h"
  42 #include "target_request.h"
  43 #include <rtt/rtt.h>
  44
  45 #define SAVED_DCRDR  dbgbase  /* FIXME: using target->dbgbase to preserve DCRDR */
  46
  47 #define ARMV7M_SCS_DCRSR        DCB_DCRSR
  48 #define ARMV7M_SCS_DCRDR        DCB_DCRDR
  49
  50 static inline struct hl_interface_s *target_to_adapter(struct target *target)
  51 {
  52         return target->tap->priv;
  53 }
  54
  55 static int adapter_load_core_reg_u32(struct target *target,
  56                 uint32_t regsel, uint32_t *value)
  57 {
  58         struct hl_interface_s *adapter = target_to_adapter(target);
  59         return adapter->layout->api->read_reg(adapter->handle, regsel, value);
  60 }
  61
  62 static int adapter_store_core_reg_u32(struct target *target,
  63                 uint32_t regsel, uint32_t value)
  64 {
  65         struct hl_interface_s *adapter = target_to_adapter(target);
  66         return adapter->layout->api->write_reg(adapter->handle, regsel, value);
  67 }
  68
  69 static int adapter_examine_debug_reason(struct target *target)
  70 {
  71         if ((target->debug_reason != DBG_REASON_DBGRQ)
  72                         && (target->debug_reason != DBG_REASON_SINGLESTEP)) {
  73                 target->debug_reason = DBG_REASON_BREAKPOINT;
  74         }
  75
  76         return ERROR_OK;
  77 }
  78
  79 static int hl_dcc_read(struct hl_interface_s *hl_if, uint8_t *value, uint8_t *ctrl)
  80 {
  81         uint16_t dcrdr;
  82         int retval = hl_if->layout->api->read_mem(hl_if->handle,
  83                         DCB_DCRDR, 1, sizeof(dcrdr), (uint8_t *)&dcrdr);
  84         if (retval == ERROR_OK) {
  85             *ctrl = (uint8_t)dcrdr;
  86             *value = (uint8_t)(dcrdr >> 8);
  87
  88             LOG_DEBUG("data 0x%x ctrl 0x%x", *value, *ctrl);
  89
  90             if (dcrdr & 1) {
  91                         /* write ack back to software dcc register
  92                          * to signify we have read data */
  93                         /* atomically clear just the byte containing the busy bit */
  94                         static const uint8_t zero;
  95                         retval = hl_if->layout->api->write_mem(hl_if->handle, DCB_DCRDR, 1, 1, &zero);
  96                 }
  97         }
  98         return retval;
  99 }
 100
 101 static int hl_target_request_data(struct target *target,
 102         uint32_t size, uint8_t *buffer)
 103 {
 104         struct hl_interface_s *hl_if = target_to_adapter(target);
 105         uint8_t data;
 106         uint8_t ctrl;
 107         uint32_t i;
 108
 109         for (i = 0; i < (size * 4); i++) {
 110                 int err = hl_dcc_read(hl_if, &data, &ctrl);
 111                 if (err != ERROR_OK)
 112                         return err;
 113
 114                 buffer[i] = data;
 115         }
 116
 117         return ERROR_OK;
 118 }
 119
 120 static int hl_handle_target_request(void *priv)
 121 {
 122         struct target *target = priv;
 123         int err;
 124
 125         if (!target_was_examined(target))
 126                 return ERROR_OK;
 127         struct hl_interface_s *hl_if = target_to_adapter(target);
 128
 129         if (!target->dbg_msg_enabled)
 130                 return ERROR_OK;
 131
 132         if (target->state == TARGET_RUNNING) {
 133                 uint8_t data;
 134                 uint8_t ctrl;
 135
 136                 err = hl_dcc_read(hl_if, &data, &ctrl);
 137                 if (err != ERROR_OK)
 138                         return err;
 139
 140                 /* check if we have data */
 141                 if (ctrl & (1 << 0)) {
 142                         uint32_t request;
 143
 144                         /* we assume target is quick enough */
 145                         request = data;
 146                         err = hl_dcc_read(hl_if, &data, &ctrl);
 147                         if (err != ERROR_OK)
 148                                 return err;
 149
 150                         request |= (data << 8);
 151                         err = hl_dcc_read(hl_if, &data, &ctrl);
 152                         if (err != ERROR_OK)
 153                                 return err;
 154
 155                         request |= (data << 16);
 156                         err = hl_dcc_read(hl_if, &data, &ctrl);
 157                         if (err != ERROR_OK)
 158                                 return err;
 159
 160                         request |= (data << 24);
 161                         target_request(target, request);
 162                 }
 163         }
 164
 165         return ERROR_OK;
 166 }
 167
 168 static int adapter_init_arch_info(struct target *target,
 169                                        struct cortex_m_common *cortex_m,
 170                                        struct jtag_tap *tap)
 171 {
 172         struct armv7m_common *armv7m;
 173
 174         LOG_DEBUG("%s", __func__);
 175
 176         armv7m = &cortex_m->armv7m;
 177         armv7m_init_arch_info(target, armv7m);
 178
 179         armv7m->load_core_reg_u32 = adapter_load_core_reg_u32;
 180         armv7m->store_core_reg_u32 = adapter_store_core_reg_u32;
 181
 182         armv7m->examine_debug_reason = adapter_examine_debug_reason;
 183         armv7m->is_hla_target = true;
 184
 185         target_register_timer_callback(hl_handle_target_request, 1,
 186                 TARGET_TIMER_TYPE_PERIODIC, target);
 187
 188         return ERROR_OK;
 189 }
 190
 191 static int adapter_init_target(struct command_context *cmd_ctx,
 192                                     struct target *target)
 193 {
 194         LOG_DEBUG("%s", __func__);
 195
 196         armv7m_build_reg_cache(target);
 197         arm_semihosting_init(target);
 198         return ERROR_OK;
 199 }
 200
 201 static int adapter_target_create(struct target *target,
 202                 Jim_Interp *interp)
 203 {
 204         LOG_DEBUG("%s", __func__);
 205         struct adiv5_private_config *pc = target->private_config;
 206         if (pc && pc->ap_num > 0) {
 207                 LOG_ERROR("hla_target: invalid parameter -ap-num (> 0)");
 208                 return ERROR_COMMAND_SYNTAX_ERROR;
 209         }
 210
 211         struct cortex_m_common *cortex_m = calloc(1, sizeof(struct cortex_m_common));
 212         if (!cortex_m) {
 213                 LOG_ERROR("No memory creating target");
 214                 return ERROR_FAIL;
 215         }
 216
 217         adapter_init_arch_info(target, cortex_m, target->tap);
 218
 219         return ERROR_OK;
 220 }
 221
 222 static int adapter_load_context(struct target *target)
 223 {
 224         struct armv7m_common *armv7m = target_to_armv7m(target);
 225         int num_regs = armv7m->arm.core_cache->num_regs;
 226
 227         for (int i = 0; i < num_regs; i++) {
 228
 229                 struct reg *r = &armv7m->arm.core_cache->reg_list[i];
 230                 if (r->exist && !r->valid)
 231                         armv7m->arm.read_core_reg(target, r, i, ARM_MODE_ANY);
 232         }
 233
 234         return ERROR_OK;
 235 }
 236
 237 static int adapter_debug_entry(struct target *target)
 238 {
 239         struct hl_interface_s *adapter = target_to_adapter(target);
 240         struct armv7m_common *armv7m = target_to_armv7m(target);
 241         struct arm *arm = &armv7m->arm;
 242         struct reg *r;
 243         uint32_t xPSR;
 244         int retval;
 245
 246         /* preserve the DCRDR across halts */
 247         retval = target_read_u32(target, DCB_DCRDR, &target->SAVED_DCRDR);
 248         if (retval != ERROR_OK)
 249                 return retval;
 250
 251         retval = armv7m->examine_debug_reason(target);
 252         if (retval != ERROR_OK)
 253                 return retval;
 254
 255         adapter_load_context(target);
 256
 257         /* make sure we clear the vector catch bit */
 258         adapter->layout->api->write_debug_reg(adapter->handle, DCB_DEMCR, TRCENA);
 259
 260         r = arm->cpsr;
 261         xPSR = buf_get_u32(r->value, 0, 32);
 262
 263         /* Are we in an exception handler */
 264         if (xPSR & 0x1FF) {
 265                 armv7m->exception_number = (xPSR & 0x1FF);
 266
 267                 arm->core_mode = ARM_MODE_HANDLER;
 268                 arm->map = armv7m_msp_reg_map;
 269         } else {
 270                 unsigned control = buf_get_u32(arm->core_cache
 271                                 ->reg_list[ARMV7M_CONTROL].value, 0, 3);
 272
 273                 /* is this thread privileged? */
 274                 arm->core_mode = control & 1
 275                                 ? ARM_MODE_USER_THREAD
 276                                 : ARM_MODE_THREAD;
 277
 278                 /* which stack is it using? */
 279                 if (control & 2)
 280                         arm->map = armv7m_psp_reg_map;
 281                 else
 282                         arm->map = armv7m_msp_reg_map;
 283
 284                 armv7m->exception_number = 0;
 285         }
 286
 287         LOG_DEBUG("entered debug state in core mode: %s at PC 0x%08" PRIx32 ", target->state: %s",
 288                 arm_mode_name(arm->core_mode),
 289                 buf_get_u32(arm->pc->value, 0, 32),
 290                 target_state_name(target));
 291
 292         return retval;
 293 }
 294
 295 static int adapter_poll(struct target *target)
 296 {
 297         enum target_state state;
 298         struct hl_interface_s *adapter = target_to_adapter(target);
 299         struct armv7m_common *armv7m = target_to_armv7m(target);
 300         enum target_state prev_target_state = target->state;
 301
 302         state = adapter->layout->api->state(adapter->handle);
 303
 304         if (state == TARGET_UNKNOWN) {
 305                 LOG_ERROR("jtag status contains invalid mode value - communication failure");
 306                 return ERROR_TARGET_FAILURE;
 307         }
 308
 309         if (prev_target_state == state)
 310                 return ERROR_OK;
 311
 312         if (prev_target_state == TARGET_DEBUG_RUNNING && state == TARGET_RUNNING)
 313                 return ERROR_OK;
 314
 315         target->state = state;
 316
 317         if (state == TARGET_HALTED) {
 318
 319                 int retval = adapter_debug_entry(target);
 320                 if (retval != ERROR_OK)
 321                         return retval;
 322
 323                 if (prev_target_state == TARGET_DEBUG_RUNNING) {
 324                         target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED);
 325                 } else {
 326                         if (arm_semihosting(target, &retval) != 0)
 327                                 return retval;
 328
 329                         target_call_event_callbacks(target, TARGET_EVENT_HALTED);
 330                 }
 331
 332                 LOG_DEBUG("halted: PC: 0x%08" PRIx32, buf_get_u32(armv7m->arm.pc->value, 0, 32));
 333         }
 334
 335         return ERROR_OK;
 336 }
 337
 338 static int hl_assert_reset(struct target *target)
 339 {
 340         int res = ERROR_OK;
 341         struct hl_interface_s *adapter = target_to_adapter(target);
 342         struct armv7m_common *armv7m = target_to_armv7m(target);
 343         bool use_srst_fallback = true;
 344
 345         LOG_DEBUG("%s", __func__);
 346
 347         enum reset_types jtag_reset_config = jtag_get_reset_config();
 348
 349         bool srst_asserted = false;
 350
 351         if ((jtag_reset_config & RESET_HAS_SRST) &&
 352             (jtag_reset_config & RESET_SRST_NO_GATING)) {
 353                 res = adapter_assert_reset();
 354                 srst_asserted = true;
 355         }
 356
 357         adapter->layout->api->write_debug_reg(adapter->handle, DCB_DHCSR, DBGKEY|C_DEBUGEN);
 358
 359         /* only set vector catch if halt is requested */
 360         if (target->reset_halt)
 361                 adapter->layout->api->write_debug_reg(adapter->handle, DCB_DEMCR, TRCENA|VC_CORERESET);
 362         else
 363                 adapter->layout->api->write_debug_reg(adapter->handle, DCB_DEMCR, TRCENA);
 364
 365         if (jtag_reset_config & RESET_HAS_SRST) {
 366                 if (!srst_asserted) {
 367                         res = adapter_assert_reset();
 368                 }
 369                 if (res == ERROR_COMMAND_NOTFOUND)
 370                         LOG_ERROR("Hardware srst not supported, falling back to software reset");
 371                 else if (res == ERROR_OK) {
 372                         /* hardware srst supported */
 373                         use_srst_fallback = false;
 374                 }
 375         }
 376
 377         if (use_srst_fallback) {
 378                 /* stlink v1 api does not support hardware srst, so we use a software reset fallback */
 379                 adapter->layout->api->write_debug_reg(adapter->handle, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_SYSRESETREQ);
 380         }
 381
 382         res = adapter->layout->api->reset(adapter->handle);
 383
 384         if (res != ERROR_OK)
 385                 return res;
 386
 387         /* registers are now invalid */
 388         register_cache_invalidate(armv7m->arm.core_cache);
 389
 390         if (target->reset_halt) {
 391                 target->state = TARGET_RESET;
 392                 target->debug_reason = DBG_REASON_DBGRQ;
 393         } else {
 394                 target->state = TARGET_HALTED;
 395         }
 396
 397         return ERROR_OK;
 398 }
 399
 400 static int hl_deassert_reset(struct target *target)
 401 {
 402         enum reset_types jtag_reset_config = jtag_get_reset_config();
 403
 404         LOG_DEBUG("%s", __func__);
 405
 406         if (jtag_reset_config & RESET_HAS_SRST)
 407                 adapter_deassert_reset();
 408
 409         target->SAVED_DCRDR = 0;  /* clear both DCC busy bits on initial resume */
 410
 411         return target->reset_halt ? ERROR_OK : target_resume(target, 1, 0, 0, 0);
 412 }
 413
 414 static int adapter_halt(struct target *target)
 415 {
 416         int res;
 417         struct hl_interface_s *adapter = target_to_adapter(target);
 418
 419         LOG_DEBUG("%s", __func__);
 420
 421         if (target->state == TARGET_HALTED) {
 422                 LOG_DEBUG("target was already halted");
 423                 return ERROR_OK;
 424         }
 425
 426         if (target->state == TARGET_UNKNOWN)
 427                 LOG_WARNING("target was in unknown state when halt was requested");
 428
 429         res = adapter->layout->api->halt(adapter->handle);
 430
 431         if (res != ERROR_OK)
 432                 return res;
 433
 434         target->debug_reason = DBG_REASON_DBGRQ;
 435
 436         return ERROR_OK;
 437 }
 438
 439 static int adapter_resume(struct target *target, int current,
 440                 target_addr_t address, int handle_breakpoints,
 441                 int debug_execution)
 442 {
 443         int res;
 444         struct hl_interface_s *adapter = target_to_adapter(target);
 445         struct armv7m_common *armv7m = target_to_armv7m(target);
 446         uint32_t resume_pc;
 447         struct breakpoint *breakpoint = NULL;
 448         struct reg *pc;
 449
 450         LOG_DEBUG("%s %d " TARGET_ADDR_FMT " %d %d", __func__, current,
 451                         address, handle_breakpoints, debug_execution);
 452
 453         if (target->state != TARGET_HALTED) {
 454                 LOG_WARNING("target not halted");
 455                 return ERROR_TARGET_NOT_HALTED;
 456         }
 457
 458         if (!debug_execution) {
 459                 target_free_all_working_areas(target);
 460                 cortex_m_enable_breakpoints(target);
 461                 cortex_m_enable_watchpoints(target);
 462         }
 463
 464         pc = armv7m->arm.pc;
 465         if (!current) {
 466                 buf_set_u32(pc->value, 0, 32, address);
 467                 pc->dirty = true;
 468                 pc->valid = true;
 469         }
 470
 471         if (!breakpoint_find(target, buf_get_u32(pc->value, 0, 32))
 472                         && !debug_execution) {
 473                 armv7m_maybe_skip_bkpt_inst(target, NULL);
 474         }
 475
 476         resume_pc = buf_get_u32(pc->value, 0, 32);
 477
 478         /* write any user vector flags */
 479         res = target_write_u32(target, DCB_DEMCR, TRCENA | armv7m->demcr);
 480         if (res != ERROR_OK)
 481                 return res;
 482
 483         armv7m_restore_context(target);
 484
 485         /* restore SAVED_DCRDR */
 486         res = target_write_u32(target, DCB_DCRDR, target->SAVED_DCRDR);
 487         if (res != ERROR_OK)
 488                 return res;
 489
 490         /* registers are now invalid */
 491         register_cache_invalidate(armv7m->arm.core_cache);
 492
 493         /* the front-end may request us not to handle breakpoints */
 494         if (handle_breakpoints) {
 495                 /* Single step past breakpoint at current address */
 496                 breakpoint = breakpoint_find(target, resume_pc);
 497                 if (breakpoint) {
 498                         LOG_DEBUG("unset breakpoint at " TARGET_ADDR_FMT " (ID: %" PRIu32 ")",
 499                                         breakpoint->address,
 500                                         breakpoint->unique_id);
 501                         cortex_m_unset_breakpoint(target, breakpoint);
 502
 503                         res = adapter->layout->api->step(adapter->handle);
 504
 505                         if (res != ERROR_OK)
 506                                 return res;
 507
 508                         cortex_m_set_breakpoint(target, breakpoint);
 509                 }
 510         }
 511
 512         res = adapter->layout->api->run(adapter->handle);
 513
 514         if (res != ERROR_OK)
 515                 return res;
 516
 517         target->debug_reason = DBG_REASON_NOTHALTED;
 518
 519         if (!debug_execution) {
 520                 target->state = TARGET_RUNNING;
 521                 target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
 522         } else {
 523                 target->state = TARGET_DEBUG_RUNNING;
 524                 target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED);
 525         }
 526
 527         return ERROR_OK;
 528 }
 529
 530 static int adapter_step(struct target *target, int current,
 531                 target_addr_t address, int handle_breakpoints)
 532 {
 533         int res;
 534         struct hl_interface_s *adapter = target_to_adapter(target);
 535         struct armv7m_common *armv7m = target_to_armv7m(target);
 536         struct breakpoint *breakpoint = NULL;
 537         struct reg *pc = armv7m->arm.pc;
 538         bool bkpt_inst_found = false;
 539
 540         LOG_DEBUG("%s", __func__);
 541
 542         if (target->state != TARGET_HALTED) {
 543                 LOG_WARNING("target not halted");
 544                 return ERROR_TARGET_NOT_HALTED;
 545         }
 546
 547         if (!current) {
 548                 buf_set_u32(pc->value, 0, 32, address);
 549                 pc->dirty = true;
 550                 pc->valid = true;
 551         }
 552
 553         uint32_t pc_value = buf_get_u32(pc->value, 0, 32);
 554
 555         /* the front-end may request us not to handle breakpoints */
 556         if (handle_breakpoints) {
 557                 breakpoint = breakpoint_find(target, pc_value);
 558                 if (breakpoint)
 559                         cortex_m_unset_breakpoint(target, breakpoint);
 560         }
 561
 562         armv7m_maybe_skip_bkpt_inst(target, &bkpt_inst_found);
 563
 564         target->debug_reason = DBG_REASON_SINGLESTEP;
 565
 566         armv7m_restore_context(target);
 567
 568         /* restore SAVED_DCRDR */
 569         res = target_write_u32(target, DCB_DCRDR, target->SAVED_DCRDR);
 570         if (res != ERROR_OK)
 571                 return res;
 572
 573         target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
 574
 575         res = adapter->layout->api->step(adapter->handle);
 576
 577         if (res != ERROR_OK)
 578                 return res;
 579
 580         /* registers are now invalid */
 581         register_cache_invalidate(armv7m->arm.core_cache);
 582
 583         if (breakpoint)
 584                 cortex_m_set_breakpoint(target, breakpoint);
 585
 586         adapter_debug_entry(target);
 587         target_call_event_callbacks(target, TARGET_EVENT_HALTED);
 588
 589         LOG_INFO("halted: PC: 0x%08" PRIx32, buf_get_u32(armv7m->arm.pc->value, 0, 32));
 590
 591         return ERROR_OK;
 592 }
 593
 594 static int adapter_read_memory(struct target *target, target_addr_t address,
 595                 uint32_t size, uint32_t count,
 596                 uint8_t *buffer)
 597 {
 598         struct hl_interface_s *adapter = target_to_adapter(target);
 599
 600         if (!count || !buffer)
 601                 return ERROR_COMMAND_SYNTAX_ERROR;
 602
 603         LOG_DEBUG("%s " TARGET_ADDR_FMT " %" PRIu32 " %" PRIu32,
 604                           __func__, address, size, count);
 605
 606         return adapter->layout->api->read_mem(adapter->handle, address, size, count, buffer);
 607 }
 608
 609 static int adapter_write_memory(struct target *target, target_addr_t address,
 610                 uint32_t size, uint32_t count,
 611                 const uint8_t *buffer)
 612 {
 613         struct hl_interface_s *adapter = target_to_adapter(target);
 614
 615         if (!count || !buffer)
 616                 return ERROR_COMMAND_SYNTAX_ERROR;
 617
 618         LOG_DEBUG("%s " TARGET_ADDR_FMT " %" PRIu32 " %" PRIu32,
 619                           __func__, address, size, count);
 620
 621         return adapter->layout->api->write_mem(adapter->handle, address, size, count, buffer);
 622 }
 623
 624 static const struct command_registration adapter_command_handlers[] = {
 625         {
 626                 .chain = arm_command_handlers,
 627         },
 628         {
 629                 .chain = armv7m_trace_command_handlers,
 630         },
 631         {
 632                 .chain = rtt_target_command_handlers,
 633         },
 634         /* START_DEPRECATED_TPIU */
 635         {
 636                 .chain = arm_tpiu_deprecated_command_handlers,
 637         },
 638         /* END_DEPRECATED_TPIU */
 639         COMMAND_REGISTRATION_DONE
 640 };
 641
 642 struct target_type hla_target = {
 643         .name = "hla_target",
 644
 645         .init_target = adapter_init_target,
 646         .deinit_target = cortex_m_deinit_target,
 647         .target_create = adapter_target_create,
 648         .target_jim_configure = adiv5_jim_configure,
 649         .examine = cortex_m_examine,
 650         .commands = adapter_command_handlers,
 651
 652         .poll = adapter_poll,
 653         .arch_state = armv7m_arch_state,
 654
 655         .target_request_data = hl_target_request_data,
 656         .assert_reset = hl_assert_reset,
 657         .deassert_reset = hl_deassert_reset,
 658
 659         .halt = adapter_halt,
 660         .resume = adapter_resume,
 661         .step = adapter_step,
 662
 663         .get_gdb_arch = arm_get_gdb_arch,
 664         .get_gdb_reg_list = armv7m_get_gdb_reg_list,
 665
 666         .read_memory = adapter_read_memory,
 667         .write_memory = adapter_write_memory,
 668         .checksum_memory = armv7m_checksum_memory,
 669         .blank_check_memory = armv7m_blank_check_memory,
 670
 671         .run_algorithm = armv7m_run_algorithm,
 672         .start_algorithm = armv7m_start_algorithm,
 673         .wait_algorithm = armv7m_wait_algorithm,
 674
 675         .add_breakpoint = cortex_m_add_breakpoint,
 676         .remove_breakpoint = cortex_m_remove_breakpoint,
 677         .add_watchpoint = cortex_m_add_watchpoint,
 678         .remove_watchpoint = cortex_m_remove_watchpoint,
 679         .profiling = cortex_m_profiling,
 680 };