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   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, write to the                         *
  38  *   Free Software Foundation, Inc.,                                       *
  39  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  40  ***************************************************************************/
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #endif
  45
  46 #include <helper/time_support.h>
  47 #include <jtag/jtag.h>
  48 #include <flash/nor/core.h>
  49
  50 #include "target.h"
  51 #include "target_type.h"
  52 #include "target_request.h"
  53 #include "breakpoints.h"
  54 #include "register.h"
  55 #include "trace.h"
  56 #include "image.h"
  57 #include "rtos/rtos.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, uint32_t address,
  63                 uint32_t count, uint8_t *buffer);
  64 static int target_write_buffer_default(struct target *target, uint32_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 cortexm3_target;
  91 extern struct target_type cortexa8_target;
  92 extern struct target_type cortexr4_target;
  93 extern struct target_type arm11_target;
  94 extern struct target_type mips_m4k_target;
  95 extern struct target_type avr_target;
  96 extern struct target_type dsp563xx_target;
  97 extern struct target_type dsp5680xx_target;
  98 extern struct target_type testee_target;
  99 extern struct target_type avr32_ap7k_target;
 100 extern struct target_type hla_target;
 101 extern struct target_type nds32_v2_target;
 102 extern struct target_type nds32_v3_target;
 103 extern struct target_type nds32_v3m_target;
 104
 105 static struct target_type *target_types[] = {
 106         &arm7tdmi_target,
 107         &arm9tdmi_target,
 108         &arm920t_target,
 109         &arm720t_target,
 110         &arm966e_target,
 111         &arm946e_target,
 112         &arm926ejs_target,
 113         &fa526_target,
 114         &feroceon_target,
 115         &dragonite_target,
 116         &xscale_target,
 117         &cortexm3_target,
 118         &cortexa8_target,
 119         &cortexr4_target,
 120         &arm11_target,
 121         &mips_m4k_target,
 122         &avr_target,
 123         &dsp563xx_target,
 124         &dsp5680xx_target,
 125         &testee_target,
 126         &avr32_ap7k_target,
 127         &hla_target,
 128         &nds32_v2_target,
 129         &nds32_v3_target,
 130         &nds32_v3m_target,
 131         NULL,
 132 };
 133
 134 struct target *all_targets;
 135 static struct target_event_callback *target_event_callbacks;
 136 static struct target_timer_callback *target_timer_callbacks;
 137 static const int polling_interval = 100;
 138
 139 static const Jim_Nvp nvp_assert[] = {
 140         { .name = "assert", NVP_ASSERT },
 141         { .name = "deassert", NVP_DEASSERT },
 142         { .name = "T", NVP_ASSERT },
 143         { .name = "F", NVP_DEASSERT },
 144         { .name = "t", NVP_ASSERT },
 145         { .name = "f", NVP_DEASSERT },
 146         { .name = NULL, .value = -1 }
 147 };
 148
 149 static const Jim_Nvp nvp_error_target[] = {
 150         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 151         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 152         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 153         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 154         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 155         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 156         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 157         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 158         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 159         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 160         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 161         { .value = -1, .name = NULL }
 162 };
 163
 164 static const char *target_strerror_safe(int err)
 165 {
 166         const Jim_Nvp *n;
 167
 168         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 169         if (n->name == NULL)
 170                 return "unknown";
 171         else
 172                 return n->name;
 173 }
 174
 175 static const Jim_Nvp nvp_target_event[] = {
 176
 177         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 178         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 179         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 180         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 181         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 182
 183         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 184         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 185
 186         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 187         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 188         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 189         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 190         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 191         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 192         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 193         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 194         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 195         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 196         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 197         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 198
 199         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 200         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 201
 202         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 203         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 204
 205         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 206         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 207
 208         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 209         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 210
 211         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 212         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 213
 214         { .name = NULL, .value = -1 }
 215 };
 216
 217 static const Jim_Nvp nvp_target_state[] = {
 218         { .name = "unknown", .value = TARGET_UNKNOWN },
 219         { .name = "running", .value = TARGET_RUNNING },
 220         { .name = "halted",  .value = TARGET_HALTED },
 221         { .name = "reset",   .value = TARGET_RESET },
 222         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 223         { .name = NULL, .value = -1 },
 224 };
 225
 226 static const Jim_Nvp nvp_target_debug_reason[] = {
 227         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 228         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 229         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 230         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 231         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 232         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 233         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 234         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 235         { .name = NULL, .value = -1 },
 236 };
 237
 238 static const Jim_Nvp nvp_target_endian[] = {
 239         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 240         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 241         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 242         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 243         { .name = NULL,     .value = -1 },
 244 };
 245
 246 static const Jim_Nvp nvp_reset_modes[] = {
 247         { .name = "unknown", .value = RESET_UNKNOWN },
 248         { .name = "run"    , .value = RESET_RUN },
 249         { .name = "halt"   , .value = RESET_HALT },
 250         { .name = "init"   , .value = RESET_INIT },
 251         { .name = NULL     , .value = -1 },
 252 };
 253
 254 const char *debug_reason_name(struct target *t)
 255 {
 256         const char *cp;
 257
 258         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 259                         t->debug_reason)->name;
 260         if (!cp) {
 261                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 262                 cp = "(*BUG*unknown*BUG*)";
 263         }
 264         return cp;
 265 }
 266
 267 const char *target_state_name(struct target *t)
 268 {
 269         const char *cp;
 270         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 271         if (!cp) {
 272                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 273                 cp = "(*BUG*unknown*BUG*)";
 274         }
 275         return cp;
 276 }
 277
 278 /* determine the number of the new target */
 279 static int new_target_number(void)
 280 {
 281         struct target *t;
 282         int x;
 283
 284         /* number is 0 based */
 285         x = -1;
 286         t = all_targets;
 287         while (t) {
 288                 if (x < t->target_number)
 289                         x = t->target_number;
 290                 t = t->next;
 291         }
 292         return x + 1;
 293 }
 294
 295 /* read a uint32_t from a buffer in target memory endianness */
 296 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 297 {
 298         if (target->endianness == TARGET_LITTLE_ENDIAN)
 299                 return le_to_h_u32(buffer);
 300         else
 301                 return be_to_h_u32(buffer);
 302 }
 303
 304 /* read a uint24_t from a buffer in target memory endianness */
 305 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 306 {
 307         if (target->endianness == TARGET_LITTLE_ENDIAN)
 308                 return le_to_h_u24(buffer);
 309         else
 310                 return be_to_h_u24(buffer);
 311 }
 312
 313 /* read a uint16_t from a buffer in target memory endianness */
 314 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 315 {
 316         if (target->endianness == TARGET_LITTLE_ENDIAN)
 317                 return le_to_h_u16(buffer);
 318         else
 319                 return be_to_h_u16(buffer);
 320 }
 321
 322 /* read a uint8_t from a buffer in target memory endianness */
 323 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 324 {
 325         return *buffer & 0x0ff;
 326 }
 327
 328 /* write a uint32_t to a buffer in target memory endianness */
 329 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 330 {
 331         if (target->endianness == TARGET_LITTLE_ENDIAN)
 332                 h_u32_to_le(buffer, value);
 333         else
 334                 h_u32_to_be(buffer, value);
 335 }
 336
 337 /* write a uint24_t to a buffer in target memory endianness */
 338 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 339 {
 340         if (target->endianness == TARGET_LITTLE_ENDIAN)
 341                 h_u24_to_le(buffer, value);
 342         else
 343                 h_u24_to_be(buffer, value);
 344 }
 345
 346 /* write a uint16_t to a buffer in target memory endianness */
 347 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 348 {
 349         if (target->endianness == TARGET_LITTLE_ENDIAN)
 350                 h_u16_to_le(buffer, value);
 351         else
 352                 h_u16_to_be(buffer, value);
 353 }
 354
 355 /* write a uint8_t to a buffer in target memory endianness */
 356 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 357 {
 358         *buffer = value;
 359 }
 360
 361 /* write a uint32_t array to a buffer in target memory endianness */
 362 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 363 {
 364         uint32_t i;
 365         for (i = 0; i < count; i++)
 366                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 367 }
 368
 369 /* write a uint16_t array to a buffer in target memory endianness */
 370 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 371 {
 372         uint32_t i;
 373         for (i = 0; i < count; i++)
 374                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 375 }
 376
 377 /* write a uint32_t array to a buffer in target memory endianness */
 378 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, uint32_t *srcbuf)
 379 {
 380         uint32_t i;
 381         for (i = 0; i < count; i++)
 382                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 383 }
 384
 385 /* write a uint16_t array to a buffer in target memory endianness */
 386 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, uint16_t *srcbuf)
 387 {
 388         uint32_t i;
 389         for (i = 0; i < count; i++)
 390                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 391 }
 392
 393 /* return a pointer to a configured target; id is name or number */
 394 struct target *get_target(const char *id)
 395 {
 396         struct target *target;
 397
 398         /* try as tcltarget name */
 399         for (target = all_targets; target; target = target->next) {
 400                 if (target_name(target) == NULL)
 401                         continue;
 402                 if (strcmp(id, target_name(target)) == 0)
 403                         return target;
 404         }
 405
 406         /* It's OK to remove this fallback sometime after August 2010 or so */
 407
 408         /* no match, try as number */
 409         unsigned num;
 410         if (parse_uint(id, &num) != ERROR_OK)
 411                 return NULL;
 412
 413         for (target = all_targets; target; target = target->next) {
 414                 if (target->target_number == (int)num) {
 415                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 416                                         target_name(target), num);
 417                         return target;
 418                 }
 419         }
 420
 421         return NULL;
 422 }
 423
 424 /* returns a pointer to the n-th configured target */
 425 static struct target *get_target_by_num(int num)
 426 {
 427         struct target *target = all_targets;
 428
 429         while (target) {
 430                 if (target->target_number == num)
 431                         return target;
 432                 target = target->next;
 433         }
 434
 435         return NULL;
 436 }
 437
 438 struct target *get_current_target(struct command_context *cmd_ctx)
 439 {
 440         struct target *target = get_target_by_num(cmd_ctx->current_target);
 441
 442         if (target == NULL) {
 443                 LOG_ERROR("BUG: current_target out of bounds");
 444                 exit(-1);
 445         }
 446
 447         return target;
 448 }
 449
 450 int target_poll(struct target *target)
 451 {
 452         int retval;
 453
 454         /* We can't poll until after examine */
 455         if (!target_was_examined(target)) {
 456                 /* Fail silently lest we pollute the log */
 457                 return ERROR_FAIL;
 458         }
 459
 460         retval = target->type->poll(target);
 461         if (retval != ERROR_OK)
 462                 return retval;
 463
 464         if (target->halt_issued) {
 465                 if (target->state == TARGET_HALTED)
 466                         target->halt_issued = false;
 467                 else {
 468                         long long t = timeval_ms() - target->halt_issued_time;
 469                         if (t > DEFAULT_HALT_TIMEOUT) {
 470                                 target->halt_issued = false;
 471                                 LOG_INFO("Halt timed out, wake up GDB.");
 472                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 473                         }
 474                 }
 475         }
 476
 477         return ERROR_OK;
 478 }
 479
 480 int target_halt(struct target *target)
 481 {
 482         int retval;
 483         /* We can't poll until after examine */
 484         if (!target_was_examined(target)) {
 485                 LOG_ERROR("Target not examined yet");
 486                 return ERROR_FAIL;
 487         }
 488
 489         retval = target->type->halt(target);
 490         if (retval != ERROR_OK)
 491                 return retval;
 492
 493         target->halt_issued = true;
 494         target->halt_issued_time = timeval_ms();
 495
 496         return ERROR_OK;
 497 }
 498
 499 /**
 500  * Make the target (re)start executing using its saved execution
 501  * context (possibly with some modifications).
 502  *
 503  * @param target Which target should start executing.
 504  * @param current True to use the target's saved program counter instead
 505  *      of the address parameter
 506  * @param address Optionally used as the program counter.
 507  * @param handle_breakpoints True iff breakpoints at the resumption PC
 508  *      should be skipped.  (For example, maybe execution was stopped by
 509  *      such a breakpoint, in which case it would be counterprodutive to
 510  *      let it re-trigger.
 511  * @param debug_execution False if all working areas allocated by OpenOCD
 512  *      should be released and/or restored to their original contents.
 513  *      (This would for example be true to run some downloaded "helper"
 514  *      algorithm code, which resides in one such working buffer and uses
 515  *      another for data storage.)
 516  *
 517  * @todo Resolve the ambiguity about what the "debug_execution" flag
 518  * signifies.  For example, Target implementations don't agree on how
 519  * it relates to invalidation of the register cache, or to whether
 520  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 521  * to enable breakpoints when running downloaded "helper" algorithms
 522  * (debug_execution true), since the breakpoints would be set to match
 523  * target firmware being debugged, not the helper algorithm.... and
 524  * enabling them could cause such helpers to malfunction (for example,
 525  * by overwriting data with a breakpoint instruction.  On the other
 526  * hand the infrastructure for running such helpers might use this
 527  * procedure but rely on hardware breakpoint to detect termination.)
 528  */
 529 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 530 {
 531         int retval;
 532
 533         /* We can't poll until after examine */
 534         if (!target_was_examined(target)) {
 535                 LOG_ERROR("Target not examined yet");
 536                 return ERROR_FAIL;
 537         }
 538
 539         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 540
 541         /* note that resume *must* be asynchronous. The CPU can halt before
 542          * we poll. The CPU can even halt at the current PC as a result of
 543          * a software breakpoint being inserted by (a bug?) the application.
 544          */
 545         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 546         if (retval != ERROR_OK)
 547                 return retval;
 548
 549         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 550
 551         return retval;
 552 }
 553
 554 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 555 {
 556         char buf[100];
 557         int retval;
 558         Jim_Nvp *n;
 559         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 560         if (n->name == NULL) {
 561                 LOG_ERROR("invalid reset mode");
 562                 return ERROR_FAIL;
 563         }
 564
 565         /* disable polling during reset to make reset event scripts
 566          * more predictable, i.e. dr/irscan & pathmove in events will
 567          * not have JTAG operations injected into the middle of a sequence.
 568          */
 569         bool save_poll = jtag_poll_get_enabled();
 570
 571         jtag_poll_set_enabled(false);
 572
 573         sprintf(buf, "ocd_process_reset %s", n->name);
 574         retval = Jim_Eval(cmd_ctx->interp, buf);
 575
 576         jtag_poll_set_enabled(save_poll);
 577
 578         if (retval != JIM_OK) {
 579                 Jim_MakeErrorMessage(cmd_ctx->interp);
 580                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 581                 return ERROR_FAIL;
 582         }
 583
 584         /* We want any events to be processed before the prompt */
 585         retval = target_call_timer_callbacks_now();
 586
 587         struct target *target;
 588         for (target = all_targets; target; target = target->next) {
 589                 target->type->check_reset(target);
 590                 target->running_alg = false;
 591         }
 592
 593         return retval;
 594 }
 595
 596 static int identity_virt2phys(struct target *target,
 597                 uint32_t virtual, uint32_t *physical)
 598 {
 599         *physical = virtual;
 600         return ERROR_OK;
 601 }
 602
 603 static int no_mmu(struct target *target, int *enabled)
 604 {
 605         *enabled = 0;
 606         return ERROR_OK;
 607 }
 608
 609 static int default_examine(struct target *target)
 610 {
 611         target_set_examined(target);
 612         return ERROR_OK;
 613 }
 614
 615 /* no check by default */
 616 static int default_check_reset(struct target *target)
 617 {
 618         return ERROR_OK;
 619 }
 620
 621 int target_examine_one(struct target *target)
 622 {
 623         return target->type->examine(target);
 624 }
 625
 626 static int jtag_enable_callback(enum jtag_event event, void *priv)
 627 {
 628         struct target *target = priv;
 629
 630         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 631                 return ERROR_OK;
 632
 633         jtag_unregister_event_callback(jtag_enable_callback, target);
 634
 635         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 636
 637         int retval = target_examine_one(target);
 638         if (retval != ERROR_OK)
 639                 return retval;
 640
 641         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 642
 643         return retval;
 644 }
 645
 646 /* Targets that correctly implement init + examine, i.e.
 647  * no communication with target during init:
 648  *
 649  * XScale
 650  */
 651 int target_examine(void)
 652 {
 653         int retval = ERROR_OK;
 654         struct target *target;
 655
 656         for (target = all_targets; target; target = target->next) {
 657                 /* defer examination, but don't skip it */
 658                 if (!target->tap->enabled) {
 659                         jtag_register_event_callback(jtag_enable_callback,
 660                                         target);
 661                         continue;
 662                 }
 663
 664                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 665
 666                 retval = target_examine_one(target);
 667                 if (retval != ERROR_OK)
 668                         return retval;
 669
 670                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 671         }
 672         return retval;
 673 }
 674
 675 const char *target_type_name(struct target *target)
 676 {
 677         return target->type->name;
 678 }
 679
 680 static int target_soft_reset_halt(struct target *target)
 681 {
 682         if (!target_was_examined(target)) {
 683                 LOG_ERROR("Target not examined yet");
 684                 return ERROR_FAIL;
 685         }
 686         if (!target->type->soft_reset_halt) {
 687                 LOG_ERROR("Target %s does not support soft_reset_halt",
 688                                 target_name(target));
 689                 return ERROR_FAIL;
 690         }
 691         return target->type->soft_reset_halt(target);
 692 }
 693
 694 /**
 695  * Downloads a target-specific native code algorithm to the target,
 696  * and executes it.  * Note that some targets may need to set up, enable,
 697  * and tear down a breakpoint (hard or * soft) to detect algorithm
 698  * termination, while others may support  lower overhead schemes where
 699  * soft breakpoints embedded in the algorithm automatically terminate the
 700  * algorithm.
 701  *
 702  * @param target used to run the algorithm
 703  * @param arch_info target-specific description of the algorithm.
 704  */
 705 int target_run_algorithm(struct target *target,
 706                 int num_mem_params, struct mem_param *mem_params,
 707                 int num_reg_params, struct reg_param *reg_param,
 708                 uint32_t entry_point, uint32_t exit_point,
 709                 int timeout_ms, void *arch_info)
 710 {
 711         int retval = ERROR_FAIL;
 712
 713         if (!target_was_examined(target)) {
 714                 LOG_ERROR("Target not examined yet");
 715                 goto done;
 716         }
 717         if (!target->type->run_algorithm) {
 718                 LOG_ERROR("Target type '%s' does not support %s",
 719                                 target_type_name(target), __func__);
 720                 goto done;
 721         }
 722
 723         target->running_alg = true;
 724         retval = target->type->run_algorithm(target,
 725                         num_mem_params, mem_params,
 726                         num_reg_params, reg_param,
 727                         entry_point, exit_point, timeout_ms, arch_info);
 728         target->running_alg = false;
 729
 730 done:
 731         return retval;
 732 }
 733
 734 /**
 735  * Downloads a target-specific native code algorithm to the target,
 736  * executes and leaves it running.
 737  *
 738  * @param target used to run the algorithm
 739  * @param arch_info target-specific description of the algorithm.
 740  */
 741 int target_start_algorithm(struct target *target,
 742                 int num_mem_params, struct mem_param *mem_params,
 743                 int num_reg_params, struct reg_param *reg_params,
 744                 uint32_t entry_point, uint32_t exit_point,
 745                 void *arch_info)
 746 {
 747         int retval = ERROR_FAIL;
 748
 749         if (!target_was_examined(target)) {
 750                 LOG_ERROR("Target not examined yet");
 751                 goto done;
 752         }
 753         if (!target->type->start_algorithm) {
 754                 LOG_ERROR("Target type '%s' does not support %s",
 755                                 target_type_name(target), __func__);
 756                 goto done;
 757         }
 758         if (target->running_alg) {
 759                 LOG_ERROR("Target is already running an algorithm");
 760                 goto done;
 761         }
 762
 763         target->running_alg = true;
 764         retval = target->type->start_algorithm(target,
 765                         num_mem_params, mem_params,
 766                         num_reg_params, reg_params,
 767                         entry_point, exit_point, arch_info);
 768
 769 done:
 770         return retval;
 771 }
 772
 773 /**
 774  * Waits for an algorithm started with target_start_algorithm() to complete.
 775  *
 776  * @param target used to run the algorithm
 777  * @param arch_info target-specific description of the algorithm.
 778  */
 779 int target_wait_algorithm(struct target *target,
 780                 int num_mem_params, struct mem_param *mem_params,
 781                 int num_reg_params, struct reg_param *reg_params,
 782                 uint32_t exit_point, int timeout_ms,
 783                 void *arch_info)
 784 {
 785         int retval = ERROR_FAIL;
 786
 787         if (!target->type->wait_algorithm) {
 788                 LOG_ERROR("Target type '%s' does not support %s",
 789                                 target_type_name(target), __func__);
 790                 goto done;
 791         }
 792         if (!target->running_alg) {
 793                 LOG_ERROR("Target is not running an algorithm");
 794                 goto done;
 795         }
 796
 797         retval = target->type->wait_algorithm(target,
 798                         num_mem_params, mem_params,
 799                         num_reg_params, reg_params,
 800                         exit_point, timeout_ms, arch_info);
 801         if (retval != ERROR_TARGET_TIMEOUT)
 802                 target->running_alg = false;
 803
 804 done:
 805         return retval;
 806 }
 807
 808 /**
 809  * Executes a target-specific native code algorithm in the target.
 810  * It differs from target_run_algorithm in that the algorithm is asynchronous.
 811  * Because of this it requires an compliant algorithm:
 812  * see contrib/loaders/flash/stm32f1x.S for example.
 813  *
 814  * @param target used to run the algorithm
 815  */
 816
 817 int target_run_flash_async_algorithm(struct target *target,
 818                 uint8_t *buffer, uint32_t count, int block_size,
 819                 int num_mem_params, struct mem_param *mem_params,
 820                 int num_reg_params, struct reg_param *reg_params,
 821                 uint32_t buffer_start, uint32_t buffer_size,
 822                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 823 {
 824         int retval;
 825         int timeout = 0;
 826
 827         /* Set up working area. First word is write pointer, second word is read pointer,
 828          * rest is fifo data area. */
 829         uint32_t wp_addr = buffer_start;
 830         uint32_t rp_addr = buffer_start + 4;
 831         uint32_t fifo_start_addr = buffer_start + 8;
 832         uint32_t fifo_end_addr = buffer_start + buffer_size;
 833
 834         uint32_t wp = fifo_start_addr;
 835         uint32_t rp = fifo_start_addr;
 836
 837         /* validate block_size is 2^n */
 838         assert(!block_size || !(block_size & (block_size - 1)));
 839
 840         retval = target_write_u32(target, wp_addr, wp);
 841         if (retval != ERROR_OK)
 842                 return retval;
 843         retval = target_write_u32(target, rp_addr, rp);
 844         if (retval != ERROR_OK)
 845                 return retval;
 846
 847         /* Start up algorithm on target and let it idle while writing the first chunk */
 848         retval = target_start_algorithm(target, num_mem_params, mem_params,
 849                         num_reg_params, reg_params,
 850                         entry_point,
 851                         exit_point,
 852                         arch_info);
 853
 854         if (retval != ERROR_OK) {
 855                 LOG_ERROR("error starting target flash write algorithm");
 856                 return retval;
 857         }
 858
 859         while (count > 0) {
 860
 861                 retval = target_read_u32(target, rp_addr, &rp);
 862                 if (retval != ERROR_OK) {
 863                         LOG_ERROR("failed to get read pointer");
 864                         break;
 865                 }
 866
 867                 LOG_DEBUG("count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32, count, wp, rp);
 868
 869                 if (rp == 0) {
 870                         LOG_ERROR("flash write algorithm aborted by target");
 871                         retval = ERROR_FLASH_OPERATION_FAILED;
 872                         break;
 873                 }
 874
 875                 if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 876                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 877                         break;
 878                 }
 879
 880                 /* Count the number of bytes available in the fifo without
 881                  * crossing the wrap around. Make sure to not fill it completely,
 882                  * because that would make wp == rp and that's the empty condition. */
 883                 uint32_t thisrun_bytes;
 884                 if (rp > wp)
 885                         thisrun_bytes = rp - wp - block_size;
 886                 else if (rp > fifo_start_addr)
 887                         thisrun_bytes = fifo_end_addr - wp;
 888                 else
 889                         thisrun_bytes = fifo_end_addr - wp - block_size;
 890
 891                 if (thisrun_bytes == 0) {
 892                         /* Throttle polling a bit if transfer is (much) faster than flash
 893                          * programming. The exact delay shouldn't matter as long as it's
 894                          * less than buffer size / flash speed. This is very unlikely to
 895                          * run when using high latency connections such as USB. */
 896                         alive_sleep(10);
 897
 898                         /* to stop an infinite loop on some targets check and increment a timeout
 899                          * this issue was observed on a stellaris using the new ICDI interface */
 900                         if (timeout++ >= 500) {
 901                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
 902                                 return ERROR_FLASH_OPERATION_FAILED;
 903                         }
 904                         continue;
 905                 }
 906
 907                 /* reset our timeout */
 908                 timeout = 0;
 909
 910                 /* Limit to the amount of data we actually want to write */
 911                 if (thisrun_bytes > count * block_size)
 912                         thisrun_bytes = count * block_size;
 913
 914                 /* Write data to fifo */
 915                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 916                 if (retval != ERROR_OK)
 917                         break;
 918
 919                 /* Update counters and wrap write pointer */
 920                 buffer += thisrun_bytes;
 921                 count -= thisrun_bytes / block_size;
 922                 wp += thisrun_bytes;
 923                 if (wp >= fifo_end_addr)
 924                         wp = fifo_start_addr;
 925
 926                 /* Store updated write pointer to target */
 927                 retval = target_write_u32(target, wp_addr, wp);
 928                 if (retval != ERROR_OK)
 929                         break;
 930         }
 931
 932         if (retval != ERROR_OK) {
 933                 /* abort flash write algorithm on target */
 934                 target_write_u32(target, wp_addr, 0);
 935         }
 936
 937         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
 938                         num_reg_params, reg_params,
 939                         exit_point,
 940                         10000,
 941                         arch_info);
 942
 943         if (retval2 != ERROR_OK) {
 944                 LOG_ERROR("error waiting for target flash write algorithm");
 945                 retval = retval2;
 946         }
 947
 948         return retval;
 949 }
 950
 951 int target_read_memory(struct target *target,
 952                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 953 {
 954         if (!target_was_examined(target)) {
 955                 LOG_ERROR("Target not examined yet");
 956                 return ERROR_FAIL;
 957         }
 958         return target->type->read_memory(target, address, size, count, buffer);
 959 }
 960
 961 int target_read_phys_memory(struct target *target,
 962                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 963 {
 964         if (!target_was_examined(target)) {
 965                 LOG_ERROR("Target not examined yet");
 966                 return ERROR_FAIL;
 967         }
 968         return target->type->read_phys_memory(target, address, size, count, buffer);
 969 }
 970
 971 int target_write_memory(struct target *target,
 972                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 973 {
 974         if (!target_was_examined(target)) {
 975                 LOG_ERROR("Target not examined yet");
 976                 return ERROR_FAIL;
 977         }
 978         return target->type->write_memory(target, address, size, count, buffer);
 979 }
 980
 981 int target_write_phys_memory(struct target *target,
 982                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 983 {
 984         if (!target_was_examined(target)) {
 985                 LOG_ERROR("Target not examined yet");
 986                 return ERROR_FAIL;
 987         }
 988         return target->type->write_phys_memory(target, address, size, count, buffer);
 989 }
 990
 991 int target_add_breakpoint(struct target *target,
 992                 struct breakpoint *breakpoint)
 993 {
 994         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
 995                 LOG_WARNING("target %s is not halted", target_name(target));
 996                 return ERROR_TARGET_NOT_HALTED;
 997         }
 998         return target->type->add_breakpoint(target, breakpoint);
 999 }
1000
1001 int target_add_context_breakpoint(struct target *target,
1002                 struct breakpoint *breakpoint)
1003 {
1004         if (target->state != TARGET_HALTED) {
1005                 LOG_WARNING("target %s is not halted", target_name(target));
1006                 return ERROR_TARGET_NOT_HALTED;
1007         }
1008         return target->type->add_context_breakpoint(target, breakpoint);
1009 }
1010
1011 int target_add_hybrid_breakpoint(struct target *target,
1012                 struct breakpoint *breakpoint)
1013 {
1014         if (target->state != TARGET_HALTED) {
1015                 LOG_WARNING("target %s is not halted", target_name(target));
1016                 return ERROR_TARGET_NOT_HALTED;
1017         }
1018         return target->type->add_hybrid_breakpoint(target, breakpoint);
1019 }
1020
1021 int target_remove_breakpoint(struct target *target,
1022                 struct breakpoint *breakpoint)
1023 {
1024         return target->type->remove_breakpoint(target, breakpoint);
1025 }
1026
1027 int target_add_watchpoint(struct target *target,
1028                 struct watchpoint *watchpoint)
1029 {
1030         if (target->state != TARGET_HALTED) {
1031                 LOG_WARNING("target %s is not halted", target_name(target));
1032                 return ERROR_TARGET_NOT_HALTED;
1033         }
1034         return target->type->add_watchpoint(target, watchpoint);
1035 }
1036 int target_remove_watchpoint(struct target *target,
1037                 struct watchpoint *watchpoint)
1038 {
1039         return target->type->remove_watchpoint(target, watchpoint);
1040 }
1041 int target_hit_watchpoint(struct target *target,
1042                 struct watchpoint **hit_watchpoint)
1043 {
1044         if (target->state != TARGET_HALTED) {
1045                 LOG_WARNING("target %s is not halted", target->cmd_name);
1046                 return ERROR_TARGET_NOT_HALTED;
1047         }
1048
1049         if (target->type->hit_watchpoint == NULL) {
1050                 /* For backward compatible, if hit_watchpoint is not implemented,
1051                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1052                  * information. */
1053                 return ERROR_FAIL;
1054         }
1055
1056         return target->type->hit_watchpoint(target, hit_watchpoint);
1057 }
1058
1059 int target_get_gdb_reg_list(struct target *target,
1060                 struct reg **reg_list[], int *reg_list_size,
1061                 enum target_register_class reg_class)
1062 {
1063         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1064 }
1065 int target_step(struct target *target,
1066                 int current, uint32_t address, int handle_breakpoints)
1067 {
1068         return target->type->step(target, current, address, handle_breakpoints);
1069 }
1070
1071 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1072 {
1073         if (target->state != TARGET_HALTED) {
1074                 LOG_WARNING("target %s is not halted", target->cmd_name);
1075                 return ERROR_TARGET_NOT_HALTED;
1076         }
1077         return target->type->get_gdb_fileio_info(target, fileio_info);
1078 }
1079
1080 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1081 {
1082         if (target->state != TARGET_HALTED) {
1083                 LOG_WARNING("target %s is not halted", target->cmd_name);
1084                 return ERROR_TARGET_NOT_HALTED;
1085         }
1086         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1087 }
1088
1089 int target_profiling(struct target *target, uint32_t *samples,
1090                         uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1091 {
1092         if (target->state != TARGET_HALTED) {
1093                 LOG_WARNING("target %s is not halted", target->cmd_name);
1094                 return ERROR_TARGET_NOT_HALTED;
1095         }
1096         return target->type->profiling(target, samples, max_num_samples,
1097                         num_samples, seconds);
1098 }
1099
1100 /**
1101  * Reset the @c examined flag for the given target.
1102  * Pure paranoia -- targets are zeroed on allocation.
1103  */
1104 static void target_reset_examined(struct target *target)
1105 {
1106         target->examined = false;
1107 }
1108
1109 static int err_read_phys_memory(struct target *target, uint32_t address,
1110                 uint32_t size, uint32_t count, uint8_t *buffer)
1111 {
1112         LOG_ERROR("Not implemented: %s", __func__);
1113         return ERROR_FAIL;
1114 }
1115
1116 static int err_write_phys_memory(struct target *target, uint32_t address,
1117                 uint32_t size, uint32_t count, const uint8_t *buffer)
1118 {
1119         LOG_ERROR("Not implemented: %s", __func__);
1120         return ERROR_FAIL;
1121 }
1122
1123 static int handle_target(void *priv);
1124
1125 static int target_init_one(struct command_context *cmd_ctx,
1126                 struct target *target)
1127 {
1128         target_reset_examined(target);
1129
1130         struct target_type *type = target->type;
1131         if (type->examine == NULL)
1132                 type->examine = default_examine;
1133
1134         if (type->check_reset == NULL)
1135                 type->check_reset = default_check_reset;
1136
1137         assert(type->init_target != NULL);
1138
1139         int retval = type->init_target(cmd_ctx, target);
1140         if (ERROR_OK != retval) {
1141                 LOG_ERROR("target '%s' init failed", target_name(target));
1142                 return retval;
1143         }
1144
1145         /* Sanity-check MMU support ... stub in what we must, to help
1146          * implement it in stages, but warn if we need to do so.
1147          */
1148         if (type->mmu) {
1149                 if (type->write_phys_memory == NULL) {
1150                         LOG_ERROR("type '%s' is missing write_phys_memory",
1151                                         type->name);
1152                         type->write_phys_memory = err_write_phys_memory;
1153                 }
1154                 if (type->read_phys_memory == NULL) {
1155                         LOG_ERROR("type '%s' is missing read_phys_memory",
1156                                         type->name);
1157                         type->read_phys_memory = err_read_phys_memory;
1158                 }
1159                 if (type->virt2phys == NULL) {
1160                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1161                         type->virt2phys = identity_virt2phys;
1162                 }
1163         } else {
1164                 /* Make sure no-MMU targets all behave the same:  make no
1165                  * distinction between physical and virtual addresses, and
1166                  * ensure that virt2phys() is always an identity mapping.
1167                  */
1168                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1169                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1170
1171                 type->mmu = no_mmu;
1172                 type->write_phys_memory = type->write_memory;
1173                 type->read_phys_memory = type->read_memory;
1174                 type->virt2phys = identity_virt2phys;
1175         }
1176
1177         if (target->type->read_buffer == NULL)
1178                 target->type->read_buffer = target_read_buffer_default;
1179
1180         if (target->type->write_buffer == NULL)
1181                 target->type->write_buffer = target_write_buffer_default;
1182
1183         if (target->type->get_gdb_fileio_info == NULL)
1184                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1185
1186         if (target->type->gdb_fileio_end == NULL)
1187                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1188
1189         if (target->type->profiling == NULL)
1190                 target->type->profiling = target_profiling_default;
1191
1192         return ERROR_OK;
1193 }
1194
1195 static int target_init(struct command_context *cmd_ctx)
1196 {
1197         struct target *target;
1198         int retval;
1199
1200         for (target = all_targets; target; target = target->next) {
1201                 retval = target_init_one(cmd_ctx, target);
1202                 if (ERROR_OK != retval)
1203                         return retval;
1204         }
1205
1206         if (!all_targets)
1207                 return ERROR_OK;
1208
1209         retval = target_register_user_commands(cmd_ctx);
1210         if (ERROR_OK != retval)
1211                 return retval;
1212
1213         retval = target_register_timer_callback(&handle_target,
1214                         polling_interval, 1, cmd_ctx->interp);
1215         if (ERROR_OK != retval)
1216                 return retval;
1217
1218         return ERROR_OK;
1219 }
1220
1221 COMMAND_HANDLER(handle_target_init_command)
1222 {
1223         int retval;
1224
1225         if (CMD_ARGC != 0)
1226                 return ERROR_COMMAND_SYNTAX_ERROR;
1227
1228         static bool target_initialized;
1229         if (target_initialized) {
1230                 LOG_INFO("'target init' has already been called");
1231                 return ERROR_OK;
1232         }
1233         target_initialized = true;
1234
1235         retval = command_run_line(CMD_CTX, "init_targets");
1236         if (ERROR_OK != retval)
1237                 return retval;
1238
1239         retval = command_run_line(CMD_CTX, "init_board");
1240         if (ERROR_OK != retval)
1241                 return retval;
1242
1243         LOG_DEBUG("Initializing targets...");
1244         return target_init(CMD_CTX);
1245 }
1246
1247 int target_register_event_callback(int (*callback)(struct target *target,
1248                 enum target_event event, void *priv), void *priv)
1249 {
1250         struct target_event_callback **callbacks_p = &target_event_callbacks;
1251
1252         if (callback == NULL)
1253                 return ERROR_COMMAND_SYNTAX_ERROR;
1254
1255         if (*callbacks_p) {
1256                 while ((*callbacks_p)->next)
1257                         callbacks_p = &((*callbacks_p)->next);
1258                 callbacks_p = &((*callbacks_p)->next);
1259         }
1260
1261         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1262         (*callbacks_p)->callback = callback;
1263         (*callbacks_p)->priv = priv;
1264         (*callbacks_p)->next = NULL;
1265
1266         return ERROR_OK;
1267 }
1268
1269 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1270 {
1271         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1272         struct timeval now;
1273
1274         if (callback == NULL)
1275                 return ERROR_COMMAND_SYNTAX_ERROR;
1276
1277         if (*callbacks_p) {
1278                 while ((*callbacks_p)->next)
1279                         callbacks_p = &((*callbacks_p)->next);
1280                 callbacks_p = &((*callbacks_p)->next);
1281         }
1282
1283         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1284         (*callbacks_p)->callback = callback;
1285         (*callbacks_p)->periodic = periodic;
1286         (*callbacks_p)->time_ms = time_ms;
1287
1288         gettimeofday(&now, NULL);
1289         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1290         time_ms -= (time_ms % 1000);
1291         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1292         if ((*callbacks_p)->when.tv_usec > 1000000) {
1293                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1294                 (*callbacks_p)->when.tv_sec += 1;
1295         }
1296
1297         (*callbacks_p)->priv = priv;
1298         (*callbacks_p)->next = NULL;
1299
1300         return ERROR_OK;
1301 }
1302
1303 int target_unregister_event_callback(int (*callback)(struct target *target,
1304                 enum target_event event, void *priv), void *priv)
1305 {
1306         struct target_event_callback **p = &target_event_callbacks;
1307         struct target_event_callback *c = target_event_callbacks;
1308
1309         if (callback == NULL)
1310                 return ERROR_COMMAND_SYNTAX_ERROR;
1311
1312         while (c) {
1313                 struct target_event_callback *next = c->next;
1314                 if ((c->callback == callback) && (c->priv == priv)) {
1315                         *p = next;
1316                         free(c);
1317                         return ERROR_OK;
1318                 } else
1319                         p = &(c->next);
1320                 c = next;
1321         }
1322
1323         return ERROR_OK;
1324 }
1325
1326 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1327 {
1328         struct target_timer_callback **p = &target_timer_callbacks;
1329         struct target_timer_callback *c = target_timer_callbacks;
1330
1331         if (callback == NULL)
1332                 return ERROR_COMMAND_SYNTAX_ERROR;
1333
1334         while (c) {
1335                 struct target_timer_callback *next = c->next;
1336                 if ((c->callback == callback) && (c->priv == priv)) {
1337                         *p = next;
1338                         free(c);
1339                         return ERROR_OK;
1340                 } else
1341                         p = &(c->next);
1342                 c = next;
1343         }
1344
1345         return ERROR_OK;
1346 }
1347
1348 int target_call_event_callbacks(struct target *target, enum target_event event)
1349 {
1350         struct target_event_callback *callback = target_event_callbacks;
1351         struct target_event_callback *next_callback;
1352
1353         if (event == TARGET_EVENT_HALTED) {
1354                 /* execute early halted first */
1355                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1356         }
1357
1358         LOG_DEBUG("target event %i (%s)", event,
1359                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1360
1361         target_handle_event(target, event);
1362
1363         while (callback) {
1364                 next_callback = callback->next;
1365                 callback->callback(target, event, callback->priv);
1366                 callback = next_callback;
1367         }
1368
1369         return ERROR_OK;
1370 }
1371
1372 static int target_timer_callback_periodic_restart(
1373                 struct target_timer_callback *cb, struct timeval *now)
1374 {
1375         int time_ms = cb->time_ms;
1376         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1377         time_ms -= (time_ms % 1000);
1378         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1379         if (cb->when.tv_usec > 1000000) {
1380                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1381                 cb->when.tv_sec += 1;
1382         }
1383         return ERROR_OK;
1384 }
1385
1386 static int target_call_timer_callback(struct target_timer_callback *cb,
1387                 struct timeval *now)
1388 {
1389         cb->callback(cb->priv);
1390
1391         if (cb->periodic)
1392                 return target_timer_callback_periodic_restart(cb, now);
1393
1394         return target_unregister_timer_callback(cb->callback, cb->priv);
1395 }
1396
1397 static int target_call_timer_callbacks_check_time(int checktime)
1398 {
1399         keep_alive();
1400
1401         struct timeval now;
1402         gettimeofday(&now, NULL);
1403
1404         struct target_timer_callback *callback = target_timer_callbacks;
1405         while (callback) {
1406                 /* cleaning up may unregister and free this callback */
1407                 struct target_timer_callback *next_callback = callback->next;
1408
1409                 bool call_it = callback->callback &&
1410                         ((!checktime && callback->periodic) ||
1411                           now.tv_sec > callback->when.tv_sec ||
1412                          (now.tv_sec == callback->when.tv_sec &&
1413                           now.tv_usec >= callback->when.tv_usec));
1414
1415                 if (call_it) {
1416                         int retval = target_call_timer_callback(callback, &now);
1417                         if (retval != ERROR_OK)
1418                                 return retval;
1419                 }
1420
1421                 callback = next_callback;
1422         }
1423
1424         return ERROR_OK;
1425 }
1426
1427 int target_call_timer_callbacks(void)
1428 {
1429         return target_call_timer_callbacks_check_time(1);
1430 }
1431
1432 /* invoke periodic callbacks immediately */
1433 int target_call_timer_callbacks_now(void)
1434 {
1435         return target_call_timer_callbacks_check_time(0);
1436 }
1437
1438 /* Prints the working area layout for debug purposes */
1439 static void print_wa_layout(struct target *target)
1440 {
1441         struct working_area *c = target->working_areas;
1442
1443         while (c) {
1444                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1445                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1446                         c->address, c->address + c->size - 1, c->size);
1447                 c = c->next;
1448         }
1449 }
1450
1451 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1452 static void target_split_working_area(struct working_area *area, uint32_t size)
1453 {
1454         assert(area->free); /* Shouldn't split an allocated area */
1455         assert(size <= area->size); /* Caller should guarantee this */
1456
1457         /* Split only if not already the right size */
1458         if (size < area->size) {
1459                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1460
1461                 if (new_wa == NULL)
1462                         return;
1463
1464                 new_wa->next = area->next;
1465                 new_wa->size = area->size - size;
1466                 new_wa->address = area->address + size;
1467                 new_wa->backup = NULL;
1468                 new_wa->user = NULL;
1469                 new_wa->free = true;
1470
1471                 area->next = new_wa;
1472                 area->size = size;
1473
1474                 /* If backup memory was allocated to this area, it has the wrong size
1475                  * now so free it and it will be reallocated if/when needed */
1476                 if (area->backup) {
1477                         free(area->backup);
1478                         area->backup = NULL;
1479                 }
1480         }
1481 }
1482
1483 /* Merge all adjacent free areas into one */
1484 static void target_merge_working_areas(struct target *target)
1485 {
1486         struct working_area *c = target->working_areas;
1487
1488         while (c && c->next) {
1489                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1490
1491                 /* Find two adjacent free areas */
1492                 if (c->free && c->next->free) {
1493                         /* Merge the last into the first */
1494                         c->size += c->next->size;
1495
1496                         /* Remove the last */
1497                         struct working_area *to_be_freed = c->next;
1498                         c->next = c->next->next;
1499                         if (to_be_freed->backup)
1500                                 free(to_be_freed->backup);
1501                         free(to_be_freed);
1502
1503                         /* If backup memory was allocated to the remaining area, it's has
1504                          * the wrong size now */
1505                         if (c->backup) {
1506                                 free(c->backup);
1507                                 c->backup = NULL;
1508                         }
1509                 } else {
1510                         c = c->next;
1511                 }
1512         }
1513 }
1514
1515 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1516 {
1517         /* Reevaluate working area address based on MMU state*/
1518         if (target->working_areas == NULL) {
1519                 int retval;
1520                 int enabled;
1521
1522                 retval = target->type->mmu(target, &enabled);
1523                 if (retval != ERROR_OK)
1524                         return retval;
1525
1526                 if (!enabled) {
1527                         if (target->working_area_phys_spec) {
1528                                 LOG_DEBUG("MMU disabled, using physical "
1529                                         "address for working memory 0x%08"PRIx32,
1530                                         target->working_area_phys);
1531                                 target->working_area = target->working_area_phys;
1532                         } else {
1533                                 LOG_ERROR("No working memory available. "
1534                                         "Specify -work-area-phys to target.");
1535                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1536                         }
1537                 } else {
1538                         if (target->working_area_virt_spec) {
1539                                 LOG_DEBUG("MMU enabled, using virtual "
1540                                         "address for working memory 0x%08"PRIx32,
1541                                         target->working_area_virt);
1542                                 target->working_area = target->working_area_virt;
1543                         } else {
1544                                 LOG_ERROR("No working memory available. "
1545                                         "Specify -work-area-virt to target.");
1546                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1547                         }
1548                 }
1549
1550                 /* Set up initial working area on first call */
1551                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1552                 if (new_wa) {
1553                         new_wa->next = NULL;
1554                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1555                         new_wa->address = target->working_area;
1556                         new_wa->backup = NULL;
1557                         new_wa->user = NULL;
1558                         new_wa->free = true;
1559                 }
1560
1561                 target->working_areas = new_wa;
1562         }
1563
1564         /* only allocate multiples of 4 byte */
1565         if (size % 4)
1566                 size = (size + 3) & (~3UL);
1567
1568         struct working_area *c = target->working_areas;
1569
1570         /* Find the first large enough working area */
1571         while (c) {
1572                 if (c->free && c->size >= size)
1573                         break;
1574                 c = c->next;
1575         }
1576
1577         if (c == NULL)
1578                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1579
1580         /* Split the working area into the requested size */
1581         target_split_working_area(c, size);
1582
1583         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1584
1585         if (target->backup_working_area) {
1586                 if (c->backup == NULL) {
1587                         c->backup = malloc(c->size);
1588                         if (c->backup == NULL)
1589                                 return ERROR_FAIL;
1590                 }
1591
1592                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1593                 if (retval != ERROR_OK)
1594                         return retval;
1595         }
1596
1597         /* mark as used, and return the new (reused) area */
1598         c->free = false;
1599         *area = c;
1600
1601         /* user pointer */
1602         c->user = area;
1603
1604         print_wa_layout(target);
1605
1606         return ERROR_OK;
1607 }
1608
1609 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1610 {
1611         int retval;
1612
1613         retval = target_alloc_working_area_try(target, size, area);
1614         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1615                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1616         return retval;
1617
1618 }
1619
1620 static int target_restore_working_area(struct target *target, struct working_area *area)
1621 {
1622         int retval = ERROR_OK;
1623
1624         if (target->backup_working_area && area->backup != NULL) {
1625                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1626                 if (retval != ERROR_OK)
1627                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1628                                         area->size, area->address);
1629         }
1630
1631         return retval;
1632 }
1633
1634 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1635 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1636 {
1637         int retval = ERROR_OK;
1638
1639         if (area->free)
1640                 return retval;
1641
1642         if (restore) {
1643                 retval = target_restore_working_area(target, area);
1644                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1645                 if (retval != ERROR_OK)
1646                         return retval;
1647         }
1648
1649         area->free = true;
1650
1651         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1652                         area->size, area->address);
1653
1654         /* mark user pointer invalid */
1655         /* TODO: Is this really safe? It points to some previous caller's memory.
1656          * How could we know that the area pointer is still in that place and not
1657          * some other vital data? What's the purpose of this, anyway? */
1658         *area->user = NULL;
1659         area->user = NULL;
1660
1661         target_merge_working_areas(target);
1662
1663         print_wa_layout(target);
1664
1665         return retval;
1666 }
1667
1668 int target_free_working_area(struct target *target, struct working_area *area)
1669 {
1670         return target_free_working_area_restore(target, area, 1);
1671 }
1672
1673 /* free resources and restore memory, if restoring memory fails,
1674  * free up resources anyway
1675  */
1676 static void target_free_all_working_areas_restore(struct target *target, int restore)
1677 {
1678         struct working_area *c = target->working_areas;
1679
1680         LOG_DEBUG("freeing all working areas");
1681
1682         /* Loop through all areas, restoring the allocated ones and marking them as free */
1683         while (c) {
1684                 if (!c->free) {
1685                         if (restore)
1686                                 target_restore_working_area(target, c);
1687                         c->free = true;
1688                         *c->user = NULL; /* Same as above */
1689                         c->user = NULL;
1690                 }
1691                 c = c->next;
1692         }
1693
1694         /* Run a merge pass to combine all areas into one */
1695         target_merge_working_areas(target);
1696
1697         print_wa_layout(target);
1698 }
1699
1700 void target_free_all_working_areas(struct target *target)
1701 {
1702         target_free_all_working_areas_restore(target, 1);
1703 }
1704
1705 /* Find the largest number of bytes that can be allocated */
1706 uint32_t target_get_working_area_avail(struct target *target)
1707 {
1708         struct working_area *c = target->working_areas;
1709         uint32_t max_size = 0;
1710
1711         if (c == NULL)
1712                 return target->working_area_size;
1713
1714         while (c) {
1715                 if (c->free && max_size < c->size)
1716                         max_size = c->size;
1717
1718                 c = c->next;
1719         }
1720
1721         return max_size;
1722 }
1723
1724 int target_arch_state(struct target *target)
1725 {
1726         int retval;
1727         if (target == NULL) {
1728                 LOG_USER("No target has been configured");
1729                 return ERROR_OK;
1730         }
1731
1732         LOG_USER("target state: %s", target_state_name(target));
1733
1734         if (target->state != TARGET_HALTED)
1735                 return ERROR_OK;
1736
1737         retval = target->type->arch_state(target);
1738         return retval;
1739 }
1740
1741 static int target_get_gdb_fileio_info_default(struct target *target,
1742                 struct gdb_fileio_info *fileio_info)
1743 {
1744         /* If target does not support semi-hosting function, target
1745            has no need to provide .get_gdb_fileio_info callback.
1746            It just return ERROR_FAIL and gdb_server will return "Txx"
1747            as target halted every time.  */
1748         return ERROR_FAIL;
1749 }
1750
1751 static int target_gdb_fileio_end_default(struct target *target,
1752                 int retcode, int fileio_errno, bool ctrl_c)
1753 {
1754         return ERROR_OK;
1755 }
1756
1757 static int target_profiling_default(struct target *target, uint32_t *samples,
1758                 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1759 {
1760         struct timeval timeout, now;
1761
1762         gettimeofday(&timeout, NULL);
1763         timeval_add_time(&timeout, seconds, 0);
1764
1765         LOG_INFO("Starting profiling. Halting and resuming the"
1766                         " target as often as we can...");
1767
1768         uint32_t sample_count = 0;
1769         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
1770         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
1771
1772         int retval = ERROR_OK;
1773         for (;;) {
1774                 target_poll(target);
1775                 if (target->state == TARGET_HALTED) {
1776                         uint32_t t = *((uint32_t *)reg->value);
1777                         samples[sample_count++] = t;
1778                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
1779                         retval = target_resume(target, 1, 0, 0, 0);
1780                         target_poll(target);
1781                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
1782                 } else if (target->state == TARGET_RUNNING) {
1783                         /* We want to quickly sample the PC. */
1784                         retval = target_halt(target);
1785                 } else {
1786                         LOG_INFO("Target not halted or running");
1787                         retval = ERROR_OK;
1788                         break;
1789                 }
1790
1791                 if (retval != ERROR_OK)
1792                         break;
1793
1794                 gettimeofday(&now, NULL);
1795                 if ((sample_count >= max_num_samples) ||
1796                         ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec))) {
1797                         LOG_INFO("Profiling completed. %d samples.", sample_count);
1798                         break;
1799                 }
1800         }
1801
1802         *num_samples = sample_count;
1803         return retval;
1804 }
1805
1806 /* Single aligned words are guaranteed to use 16 or 32 bit access
1807  * mode respectively, otherwise data is handled as quickly as
1808  * possible
1809  */
1810 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1811 {
1812         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1813                         (int)size, (unsigned)address);
1814
1815         if (!target_was_examined(target)) {
1816                 LOG_ERROR("Target not examined yet");
1817                 return ERROR_FAIL;
1818         }
1819
1820         if (size == 0)
1821                 return ERROR_OK;
1822
1823         if ((address + size - 1) < address) {
1824                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1825                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1826                                   (unsigned)address,
1827                                   (unsigned)size);
1828                 return ERROR_FAIL;
1829         }
1830
1831         return target->type->write_buffer(target, address, size, buffer);
1832 }
1833
1834 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t count, const uint8_t *buffer)
1835 {
1836         uint32_t size;
1837
1838         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
1839          * will have something to do with the size we leave to it. */
1840         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
1841                 if (address & size) {
1842                         int retval = target_write_memory(target, address, size, 1, buffer);
1843                         if (retval != ERROR_OK)
1844                                 return retval;
1845                         address += size;
1846                         count -= size;
1847                         buffer += size;
1848                 }
1849         }
1850
1851         /* Write the data with as large access size as possible. */
1852         for (; size > 0; size /= 2) {
1853                 uint32_t aligned = count - count % size;
1854                 if (aligned > 0) {
1855                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
1856                         if (retval != ERROR_OK)
1857                                 return retval;
1858                         address += aligned;
1859                         count -= aligned;
1860                         buffer += aligned;
1861                 }
1862         }
1863
1864         return ERROR_OK;
1865 }
1866
1867 /* Single aligned words are guaranteed to use 16 or 32 bit access
1868  * mode respectively, otherwise data is handled as quickly as
1869  * possible
1870  */
1871 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1872 {
1873         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1874                           (int)size, (unsigned)address);
1875
1876         if (!target_was_examined(target)) {
1877                 LOG_ERROR("Target not examined yet");
1878                 return ERROR_FAIL;
1879         }
1880
1881         if (size == 0)
1882                 return ERROR_OK;
1883
1884         if ((address + size - 1) < address) {
1885                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1886                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1887                                   address,
1888                                   size);
1889                 return ERROR_FAIL;
1890         }
1891
1892         return target->type->read_buffer(target, address, size, buffer);
1893 }
1894
1895 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t count, uint8_t *buffer)
1896 {
1897         uint32_t size;
1898
1899         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
1900          * will have something to do with the size we leave to it. */
1901         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
1902                 if (address & size) {
1903                         int retval = target_read_memory(target, address, size, 1, buffer);
1904                         if (retval != ERROR_OK)
1905                                 return retval;
1906                         address += size;
1907                         count -= size;
1908                         buffer += size;
1909                 }
1910         }
1911
1912         /* Read the data with as large access size as possible. */
1913         for (; size > 0; size /= 2) {
1914                 uint32_t aligned = count - count % size;
1915                 if (aligned > 0) {
1916                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
1917                         if (retval != ERROR_OK)
1918                                 return retval;
1919                         address += aligned;
1920                         count -= aligned;
1921                         buffer += aligned;
1922                 }
1923         }
1924
1925         return ERROR_OK;
1926 }
1927
1928 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1929 {
1930         uint8_t *buffer;
1931         int retval;
1932         uint32_t i;
1933         uint32_t checksum = 0;
1934         if (!target_was_examined(target)) {
1935                 LOG_ERROR("Target not examined yet");
1936                 return ERROR_FAIL;
1937         }
1938
1939         retval = target->type->checksum_memory(target, address, size, &checksum);
1940         if (retval != ERROR_OK) {
1941                 buffer = malloc(size);
1942                 if (buffer == NULL) {
1943                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1944                         return ERROR_COMMAND_SYNTAX_ERROR;
1945                 }
1946                 retval = target_read_buffer(target, address, size, buffer);
1947                 if (retval != ERROR_OK) {
1948                         free(buffer);
1949                         return retval;
1950                 }
1951
1952                 /* convert to target endianness */
1953                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
1954                         uint32_t target_data;
1955                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1956                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1957                 }
1958
1959                 retval = image_calculate_checksum(buffer, size, &checksum);
1960                 free(buffer);
1961         }
1962
1963         *crc = checksum;
1964
1965         return retval;
1966 }
1967
1968 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1969 {
1970         int retval;
1971         if (!target_was_examined(target)) {
1972                 LOG_ERROR("Target not examined yet");
1973                 return ERROR_FAIL;
1974         }
1975
1976         if (target->type->blank_check_memory == 0)
1977                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1978
1979         retval = target->type->blank_check_memory(target, address, size, blank);
1980
1981         return retval;
1982 }
1983
1984 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1985 {
1986         uint8_t value_buf[4];
1987         if (!target_was_examined(target)) {
1988                 LOG_ERROR("Target not examined yet");
1989                 return ERROR_FAIL;
1990         }
1991
1992         int retval = target_read_memory(target, address, 4, 1, value_buf);
1993
1994         if (retval == ERROR_OK) {
1995                 *value = target_buffer_get_u32(target, value_buf);
1996                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1997                                   address,
1998                                   *value);
1999         } else {
2000                 *value = 0x0;
2001                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2002                                   address);
2003         }
2004
2005         return retval;
2006 }
2007
2008 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
2009 {
2010         uint8_t value_buf[2];
2011         if (!target_was_examined(target)) {
2012                 LOG_ERROR("Target not examined yet");
2013                 return ERROR_FAIL;
2014         }
2015
2016         int retval = target_read_memory(target, address, 2, 1, value_buf);
2017
2018         if (retval == ERROR_OK) {
2019                 *value = target_buffer_get_u16(target, value_buf);
2020                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
2021                                   address,
2022                                   *value);
2023         } else {
2024                 *value = 0x0;
2025                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2026                                   address);
2027         }
2028
2029         return retval;
2030 }
2031
2032 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
2033 {
2034         int retval = target_read_memory(target, address, 1, 1, value);
2035         if (!target_was_examined(target)) {
2036                 LOG_ERROR("Target not examined yet");
2037                 return ERROR_FAIL;
2038         }
2039
2040         if (retval == ERROR_OK) {
2041                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2042                                   address,
2043                                   *value);
2044         } else {
2045                 *value = 0x0;
2046                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
2047                                   address);
2048         }
2049
2050         return retval;
2051 }
2052
2053 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
2054 {
2055         int retval;
2056         uint8_t value_buf[4];
2057         if (!target_was_examined(target)) {
2058                 LOG_ERROR("Target not examined yet");
2059                 return ERROR_FAIL;
2060         }
2061
2062         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
2063                           address,
2064                           value);
2065
2066         target_buffer_set_u32(target, value_buf, value);
2067         retval = target_write_memory(target, address, 4, 1, value_buf);
2068         if (retval != ERROR_OK)
2069                 LOG_DEBUG("failed: %i", retval);
2070
2071         return retval;
2072 }
2073
2074 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
2075 {
2076         int retval;
2077         uint8_t value_buf[2];
2078         if (!target_was_examined(target)) {
2079                 LOG_ERROR("Target not examined yet");
2080                 return ERROR_FAIL;
2081         }
2082
2083         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2084                           address,
2085                           value);
2086
2087         target_buffer_set_u16(target, value_buf, value);
2088         retval = target_write_memory(target, address, 2, 1, value_buf);
2089         if (retval != ERROR_OK)
2090                 LOG_DEBUG("failed: %i", retval);
2091
2092         return retval;
2093 }
2094
2095 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2096 {
2097         int retval;
2098         if (!target_was_examined(target)) {
2099                 LOG_ERROR("Target not examined yet");
2100                 return ERROR_FAIL;
2101         }
2102
2103         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2104                           address, value);
2105
2106         retval = target_write_memory(target, address, 1, 1, &value);
2107         if (retval != ERROR_OK)
2108                 LOG_DEBUG("failed: %i", retval);
2109
2110         return retval;
2111 }
2112
2113 static int find_target(struct command_context *cmd_ctx, const char *name)
2114 {
2115         struct target *target = get_target(name);
2116         if (target == NULL) {
2117                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2118                 return ERROR_FAIL;
2119         }
2120         if (!target->tap->enabled) {
2121                 LOG_USER("Target: TAP %s is disabled, "
2122                          "can't be the current target\n",
2123                          target->tap->dotted_name);
2124                 return ERROR_FAIL;
2125         }
2126
2127         cmd_ctx->current_target = target->target_number;
2128         return ERROR_OK;
2129 }
2130
2131
2132 COMMAND_HANDLER(handle_targets_command)
2133 {
2134         int retval = ERROR_OK;
2135         if (CMD_ARGC == 1) {
2136                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2137                 if (retval == ERROR_OK) {
2138                         /* we're done! */
2139                         return retval;
2140                 }
2141         }
2142
2143         struct target *target = all_targets;
2144         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2145         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2146         while (target) {
2147                 const char *state;
2148                 char marker = ' ';
2149
2150                 if (target->tap->enabled)
2151                         state = target_state_name(target);
2152                 else
2153                         state = "tap-disabled";
2154
2155                 if (CMD_CTX->current_target == target->target_number)
2156                         marker = '*';
2157
2158                 /* keep columns lined up to match the headers above */
2159                 command_print(CMD_CTX,
2160                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2161                                 target->target_number,
2162                                 marker,
2163                                 target_name(target),
2164                                 target_type_name(target),
2165                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2166                                         target->endianness)->name,
2167                                 target->tap->dotted_name,
2168                                 state);
2169                 target = target->next;
2170         }
2171
2172         return retval;
2173 }
2174
2175 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2176
2177 static int powerDropout;
2178 static int srstAsserted;
2179
2180 static int runPowerRestore;
2181 static int runPowerDropout;
2182 static int runSrstAsserted;
2183 static int runSrstDeasserted;
2184
2185 static int sense_handler(void)
2186 {
2187         static int prevSrstAsserted;
2188         static int prevPowerdropout;
2189
2190         int retval = jtag_power_dropout(&powerDropout);
2191         if (retval != ERROR_OK)
2192                 return retval;
2193
2194         int powerRestored;
2195         powerRestored = prevPowerdropout && !powerDropout;
2196         if (powerRestored)
2197                 runPowerRestore = 1;
2198
2199         long long current = timeval_ms();
2200         static long long lastPower;
2201         int waitMore = lastPower + 2000 > current;
2202         if (powerDropout && !waitMore) {
2203                 runPowerDropout = 1;
2204                 lastPower = current;
2205         }
2206
2207         retval = jtag_srst_asserted(&srstAsserted);
2208         if (retval != ERROR_OK)
2209                 return retval;
2210
2211         int srstDeasserted;
2212         srstDeasserted = prevSrstAsserted && !srstAsserted;
2213
2214         static long long lastSrst;
2215         waitMore = lastSrst + 2000 > current;
2216         if (srstDeasserted && !waitMore) {
2217                 runSrstDeasserted = 1;
2218                 lastSrst = current;
2219         }
2220
2221         if (!prevSrstAsserted && srstAsserted)
2222                 runSrstAsserted = 1;
2223
2224         prevSrstAsserted = srstAsserted;
2225         prevPowerdropout = powerDropout;
2226
2227         if (srstDeasserted || powerRestored) {
2228                 /* Other than logging the event we can't do anything here.
2229                  * Issuing a reset is a particularly bad idea as we might
2230                  * be inside a reset already.
2231                  */
2232         }
2233
2234         return ERROR_OK;
2235 }
2236
2237 /* process target state changes */
2238 static int handle_target(void *priv)
2239 {
2240         Jim_Interp *interp = (Jim_Interp *)priv;
2241         int retval = ERROR_OK;
2242
2243         if (!is_jtag_poll_safe()) {
2244                 /* polling is disabled currently */
2245                 return ERROR_OK;
2246         }
2247
2248         /* we do not want to recurse here... */
2249         static int recursive;
2250         if (!recursive) {
2251                 recursive = 1;
2252                 sense_handler();
2253                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2254                  * We need to avoid an infinite loop/recursion here and we do that by
2255                  * clearing the flags after running these events.
2256                  */
2257                 int did_something = 0;
2258                 if (runSrstAsserted) {
2259                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2260                         Jim_Eval(interp, "srst_asserted");
2261                         did_something = 1;
2262                 }
2263                 if (runSrstDeasserted) {
2264                         Jim_Eval(interp, "srst_deasserted");
2265                         did_something = 1;
2266                 }
2267                 if (runPowerDropout) {
2268                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2269                         Jim_Eval(interp, "power_dropout");
2270                         did_something = 1;
2271                 }
2272                 if (runPowerRestore) {
2273                         Jim_Eval(interp, "power_restore");
2274                         did_something = 1;
2275                 }
2276
2277                 if (did_something) {
2278                         /* clear detect flags */
2279                         sense_handler();
2280                 }
2281
2282                 /* clear action flags */
2283
2284                 runSrstAsserted = 0;
2285                 runSrstDeasserted = 0;
2286                 runPowerRestore = 0;
2287                 runPowerDropout = 0;
2288
2289                 recursive = 0;
2290         }
2291
2292         /* Poll targets for state changes unless that's globally disabled.
2293          * Skip targets that are currently disabled.
2294          */
2295         for (struct target *target = all_targets;
2296                         is_jtag_poll_safe() && target;
2297                         target = target->next) {
2298                 if (!target->tap->enabled)
2299                         continue;
2300
2301                 if (target->backoff.times > target->backoff.count) {
2302                         /* do not poll this time as we failed previously */
2303                         target->backoff.count++;
2304                         continue;
2305                 }
2306                 target->backoff.count = 0;
2307
2308                 /* only poll target if we've got power and srst isn't asserted */
2309                 if (!powerDropout && !srstAsserted) {
2310                         /* polling may fail silently until the target has been examined */
2311                         retval = target_poll(target);
2312                         if (retval != ERROR_OK) {
2313                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2314                                 if (target->backoff.times * polling_interval < 5000) {
2315                                         target->backoff.times *= 2;
2316                                         target->backoff.times++;
2317                                 }
2318                                 LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms",
2319                                                 target_name(target),
2320                                                 target->backoff.times * polling_interval);
2321
2322                                 /* Tell GDB to halt the debugger. This allows the user to
2323                                  * run monitor commands to handle the situation.
2324                                  */
2325                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2326                                 return retval;
2327                         }
2328                         /* Since we succeeded, we reset backoff count */
2329                         if (target->backoff.times > 0)
2330                                 LOG_USER("Polling target %s succeeded again", target_name(target));
2331                         target->backoff.times = 0;
2332                 }
2333         }
2334
2335         return retval;
2336 }
2337
2338 COMMAND_HANDLER(handle_reg_command)
2339 {
2340         struct target *target;
2341         struct reg *reg = NULL;
2342         unsigned count = 0;
2343         char *value;
2344
2345         LOG_DEBUG("-");
2346
2347         target = get_current_target(CMD_CTX);
2348
2349         /* list all available registers for the current target */
2350         if (CMD_ARGC == 0) {
2351                 struct reg_cache *cache = target->reg_cache;
2352
2353                 count = 0;
2354                 while (cache) {
2355                         unsigned i;
2356
2357                         command_print(CMD_CTX, "===== %s", cache->name);
2358
2359                         for (i = 0, reg = cache->reg_list;
2360                                         i < cache->num_regs;
2361                                         i++, reg++, count++) {
2362                                 /* only print cached values if they are valid */
2363                                 if (reg->valid) {
2364                                         value = buf_to_str(reg->value,
2365                                                         reg->size, 16);
2366                                         command_print(CMD_CTX,
2367                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2368                                                         count, reg->name,
2369                                                         reg->size, value,
2370                                                         reg->dirty
2371                                                                 ? " (dirty)"
2372                                                                 : "");
2373                                         free(value);
2374                                 } else {
2375                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2376                                                           count, reg->name,
2377                                                           reg->size) ;
2378                                 }
2379                         }
2380                         cache = cache->next;
2381                 }
2382
2383                 return ERROR_OK;
2384         }
2385
2386         /* access a single register by its ordinal number */
2387         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2388                 unsigned num;
2389                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2390
2391                 struct reg_cache *cache = target->reg_cache;
2392                 count = 0;
2393                 while (cache) {
2394                         unsigned i;
2395                         for (i = 0; i < cache->num_regs; i++) {
2396                                 if (count++ == num) {
2397                                         reg = &cache->reg_list[i];
2398                                         break;
2399                                 }
2400                         }
2401                         if (reg)
2402                                 break;
2403                         cache = cache->next;
2404                 }
2405
2406                 if (!reg) {
2407                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2408                                         "has only %i registers (0 - %i)", num, count, count - 1);
2409                         return ERROR_OK;
2410                 }
2411         } else {
2412                 /* access a single register by its name */
2413                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2414
2415                 if (!reg) {
2416                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2417                         return ERROR_OK;
2418                 }
2419         }
2420
2421         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2422
2423         /* display a register */
2424         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2425                         && (CMD_ARGV[1][0] <= '9')))) {
2426                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2427                         reg->valid = 0;
2428
2429                 if (reg->valid == 0)
2430                         reg->type->get(reg);
2431                 value = buf_to_str(reg->value, reg->size, 16);
2432                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2433                 free(value);
2434                 return ERROR_OK;
2435         }
2436
2437         /* set register value */
2438         if (CMD_ARGC == 2) {
2439                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2440                 if (buf == NULL)
2441                         return ERROR_FAIL;
2442                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2443
2444                 reg->type->set(reg, buf);
2445
2446                 value = buf_to_str(reg->value, reg->size, 16);
2447                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2448                 free(value);
2449
2450                 free(buf);
2451
2452                 return ERROR_OK;
2453         }
2454
2455         return ERROR_COMMAND_SYNTAX_ERROR;
2456 }
2457
2458 COMMAND_HANDLER(handle_poll_command)
2459 {
2460         int retval = ERROR_OK;
2461         struct target *target = get_current_target(CMD_CTX);
2462
2463         if (CMD_ARGC == 0) {
2464                 command_print(CMD_CTX, "background polling: %s",
2465                                 jtag_poll_get_enabled() ? "on" : "off");
2466                 command_print(CMD_CTX, "TAP: %s (%s)",
2467                                 target->tap->dotted_name,
2468                                 target->tap->enabled ? "enabled" : "disabled");
2469                 if (!target->tap->enabled)
2470                         return ERROR_OK;
2471                 retval = target_poll(target);
2472                 if (retval != ERROR_OK)
2473                         return retval;
2474                 retval = target_arch_state(target);
2475                 if (retval != ERROR_OK)
2476                         return retval;
2477         } else if (CMD_ARGC == 1) {
2478                 bool enable;
2479                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2480                 jtag_poll_set_enabled(enable);
2481         } else
2482                 return ERROR_COMMAND_SYNTAX_ERROR;
2483
2484         return retval;
2485 }
2486
2487 COMMAND_HANDLER(handle_wait_halt_command)
2488 {
2489         if (CMD_ARGC > 1)
2490                 return ERROR_COMMAND_SYNTAX_ERROR;
2491
2492         unsigned ms = DEFAULT_HALT_TIMEOUT;
2493         if (1 == CMD_ARGC) {
2494                 int retval = parse_uint(CMD_ARGV[0], &ms);
2495                 if (ERROR_OK != retval)
2496                         return ERROR_COMMAND_SYNTAX_ERROR;
2497         }
2498
2499         struct target *target = get_current_target(CMD_CTX);
2500         return target_wait_state(target, TARGET_HALTED, ms);
2501 }
2502
2503 /* wait for target state to change. The trick here is to have a low
2504  * latency for short waits and not to suck up all the CPU time
2505  * on longer waits.
2506  *
2507  * After 500ms, keep_alive() is invoked
2508  */
2509 int target_wait_state(struct target *target, enum target_state state, int ms)
2510 {
2511         int retval;
2512         long long then = 0, cur;
2513         int once = 1;
2514
2515         for (;;) {
2516                 retval = target_poll(target);
2517                 if (retval != ERROR_OK)
2518                         return retval;
2519                 if (target->state == state)
2520                         break;
2521                 cur = timeval_ms();
2522                 if (once) {
2523                         once = 0;
2524                         then = timeval_ms();
2525                         LOG_DEBUG("waiting for target %s...",
2526                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2527                 }
2528
2529                 if (cur-then > 500)
2530                         keep_alive();
2531
2532                 if ((cur-then) > ms) {
2533                         LOG_ERROR("timed out while waiting for target %s",
2534                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2535                         return ERROR_FAIL;
2536                 }
2537         }
2538
2539         return ERROR_OK;
2540 }
2541
2542 COMMAND_HANDLER(handle_halt_command)
2543 {
2544         LOG_DEBUG("-");
2545
2546         struct target *target = get_current_target(CMD_CTX);
2547         int retval = target_halt(target);
2548         if (ERROR_OK != retval)
2549                 return retval;
2550
2551         if (CMD_ARGC == 1) {
2552                 unsigned wait_local;
2553                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2554                 if (ERROR_OK != retval)
2555                         return ERROR_COMMAND_SYNTAX_ERROR;
2556                 if (!wait_local)
2557                         return ERROR_OK;
2558         }
2559
2560         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2561 }
2562
2563 COMMAND_HANDLER(handle_soft_reset_halt_command)
2564 {
2565         struct target *target = get_current_target(CMD_CTX);
2566
2567         LOG_USER("requesting target halt and executing a soft reset");
2568
2569         target_soft_reset_halt(target);
2570
2571         return ERROR_OK;
2572 }
2573
2574 COMMAND_HANDLER(handle_reset_command)
2575 {
2576         if (CMD_ARGC > 1)
2577                 return ERROR_COMMAND_SYNTAX_ERROR;
2578
2579         enum target_reset_mode reset_mode = RESET_RUN;
2580         if (CMD_ARGC == 1) {
2581                 const Jim_Nvp *n;
2582                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2583                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2584                         return ERROR_COMMAND_SYNTAX_ERROR;
2585                 reset_mode = n->value;
2586         }
2587
2588         /* reset *all* targets */
2589         return target_process_reset(CMD_CTX, reset_mode);
2590 }
2591
2592
2593 COMMAND_HANDLER(handle_resume_command)
2594 {
2595         int current = 1;
2596         if (CMD_ARGC > 1)
2597                 return ERROR_COMMAND_SYNTAX_ERROR;
2598
2599         struct target *target = get_current_target(CMD_CTX);
2600
2601         /* with no CMD_ARGV, resume from current pc, addr = 0,
2602          * with one arguments, addr = CMD_ARGV[0],
2603          * handle breakpoints, not debugging */
2604         uint32_t addr = 0;
2605         if (CMD_ARGC == 1) {
2606                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2607                 current = 0;
2608         }
2609
2610         return target_resume(target, current, addr, 1, 0);
2611 }
2612
2613 COMMAND_HANDLER(handle_step_command)
2614 {
2615         if (CMD_ARGC > 1)
2616                 return ERROR_COMMAND_SYNTAX_ERROR;
2617
2618         LOG_DEBUG("-");
2619
2620         /* with no CMD_ARGV, step from current pc, addr = 0,
2621          * with one argument addr = CMD_ARGV[0],
2622          * handle breakpoints, debugging */
2623         uint32_t addr = 0;
2624         int current_pc = 1;
2625         if (CMD_ARGC == 1) {
2626                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2627                 current_pc = 0;
2628         }
2629
2630         struct target *target = get_current_target(CMD_CTX);
2631
2632         return target->type->step(target, current_pc, addr, 1);
2633 }
2634
2635 static void handle_md_output(struct command_context *cmd_ctx,
2636                 struct target *target, uint32_t address, unsigned size,
2637                 unsigned count, const uint8_t *buffer)
2638 {
2639         const unsigned line_bytecnt = 32;
2640         unsigned line_modulo = line_bytecnt / size;
2641
2642         char output[line_bytecnt * 4 + 1];
2643         unsigned output_len = 0;
2644
2645         const char *value_fmt;
2646         switch (size) {
2647         case 4:
2648                 value_fmt = "%8.8x ";
2649                 break;
2650         case 2:
2651                 value_fmt = "%4.4x ";
2652                 break;
2653         case 1:
2654                 value_fmt = "%2.2x ";
2655                 break;
2656         default:
2657                 /* "can't happen", caller checked */
2658                 LOG_ERROR("invalid memory read size: %u", size);
2659                 return;
2660         }
2661
2662         for (unsigned i = 0; i < count; i++) {
2663                 if (i % line_modulo == 0) {
2664                         output_len += snprintf(output + output_len,
2665                                         sizeof(output) - output_len,
2666                                         "0x%8.8x: ",
2667                                         (unsigned)(address + (i*size)));
2668                 }
2669
2670                 uint32_t value = 0;
2671                 const uint8_t *value_ptr = buffer + i * size;
2672                 switch (size) {
2673                 case 4:
2674                         value = target_buffer_get_u32(target, value_ptr);
2675                         break;
2676                 case 2:
2677                         value = target_buffer_get_u16(target, value_ptr);
2678                         break;
2679                 case 1:
2680                         value = *value_ptr;
2681                 }
2682                 output_len += snprintf(output + output_len,
2683                                 sizeof(output) - output_len,
2684                                 value_fmt, value);
2685
2686                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2687                         command_print(cmd_ctx, "%s", output);
2688                         output_len = 0;
2689                 }
2690         }
2691 }
2692
2693 COMMAND_HANDLER(handle_md_command)
2694 {
2695         if (CMD_ARGC < 1)
2696                 return ERROR_COMMAND_SYNTAX_ERROR;
2697
2698         unsigned size = 0;
2699         switch (CMD_NAME[2]) {
2700         case 'w':
2701                 size = 4;
2702                 break;
2703         case 'h':
2704                 size = 2;
2705                 break;
2706         case 'b':
2707                 size = 1;
2708                 break;
2709         default:
2710                 return ERROR_COMMAND_SYNTAX_ERROR;
2711         }
2712
2713         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2714         int (*fn)(struct target *target,
2715                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2716         if (physical) {
2717                 CMD_ARGC--;
2718                 CMD_ARGV++;
2719                 fn = target_read_phys_memory;
2720         } else
2721                 fn = target_read_memory;
2722         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2723                 return ERROR_COMMAND_SYNTAX_ERROR;
2724
2725         uint32_t address;
2726         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2727
2728         unsigned count = 1;
2729         if (CMD_ARGC == 2)
2730                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2731
2732         uint8_t *buffer = calloc(count, size);
2733
2734         struct target *target = get_current_target(CMD_CTX);
2735         int retval = fn(target, address, size, count, buffer);
2736         if (ERROR_OK == retval)
2737                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2738
2739         free(buffer);
2740
2741         return retval;
2742 }
2743
2744 typedef int (*target_write_fn)(struct target *target,
2745                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2746
2747 static int target_fill_mem(struct target *target,
2748                 uint32_t address,
2749                 target_write_fn fn,
2750                 unsigned data_size,
2751                 /* value */
2752                 uint32_t b,
2753                 /* count */
2754                 unsigned c)
2755 {
2756         /* We have to write in reasonably large chunks to be able
2757          * to fill large memory areas with any sane speed */
2758         const unsigned chunk_size = 16384;
2759         uint8_t *target_buf = malloc(chunk_size * data_size);
2760         if (target_buf == NULL) {
2761                 LOG_ERROR("Out of memory");
2762                 return ERROR_FAIL;
2763         }
2764
2765         for (unsigned i = 0; i < chunk_size; i++) {
2766                 switch (data_size) {
2767                 case 4:
2768                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2769                         break;
2770                 case 2:
2771                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2772                         break;
2773                 case 1:
2774                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2775                         break;
2776                 default:
2777                         exit(-1);
2778                 }
2779         }
2780
2781         int retval = ERROR_OK;
2782
2783         for (unsigned x = 0; x < c; x += chunk_size) {
2784                 unsigned current;
2785                 current = c - x;
2786                 if (current > chunk_size)
2787                         current = chunk_size;
2788                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2789                 if (retval != ERROR_OK)
2790                         break;
2791                 /* avoid GDB timeouts */
2792                 keep_alive();
2793         }
2794         free(target_buf);
2795
2796         return retval;
2797 }
2798
2799
2800 COMMAND_HANDLER(handle_mw_command)
2801 {
2802         if (CMD_ARGC < 2)
2803                 return ERROR_COMMAND_SYNTAX_ERROR;
2804         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2805         target_write_fn fn;
2806         if (physical) {
2807                 CMD_ARGC--;
2808                 CMD_ARGV++;
2809                 fn = target_write_phys_memory;
2810         } else
2811                 fn = target_write_memory;
2812         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2813                 return ERROR_COMMAND_SYNTAX_ERROR;
2814
2815         uint32_t address;
2816         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2817
2818         uint32_t value;
2819         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2820
2821         unsigned count = 1;
2822         if (CMD_ARGC == 3)
2823                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2824
2825         struct target *target = get_current_target(CMD_CTX);
2826         unsigned wordsize;
2827         switch (CMD_NAME[2]) {
2828                 case 'w':
2829                         wordsize = 4;
2830                         break;
2831                 case 'h':
2832                         wordsize = 2;
2833                         break;
2834                 case 'b':
2835                         wordsize = 1;
2836                         break;
2837                 default:
2838                         return ERROR_COMMAND_SYNTAX_ERROR;
2839         }
2840
2841         return target_fill_mem(target, address, fn, wordsize, value, count);
2842 }
2843
2844 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2845                 uint32_t *min_address, uint32_t *max_address)
2846 {
2847         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2848                 return ERROR_COMMAND_SYNTAX_ERROR;
2849
2850         /* a base address isn't always necessary,
2851          * default to 0x0 (i.e. don't relocate) */
2852         if (CMD_ARGC >= 2) {
2853                 uint32_t addr;
2854                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2855                 image->base_address = addr;
2856                 image->base_address_set = 1;
2857         } else
2858                 image->base_address_set = 0;
2859
2860         image->start_address_set = 0;
2861
2862         if (CMD_ARGC >= 4)
2863                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2864         if (CMD_ARGC == 5) {
2865                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2866                 /* use size (given) to find max (required) */
2867                 *max_address += *min_address;
2868         }
2869
2870         if (*min_address > *max_address)
2871                 return ERROR_COMMAND_SYNTAX_ERROR;
2872
2873         return ERROR_OK;
2874 }
2875
2876 COMMAND_HANDLER(handle_load_image_command)
2877 {
2878         uint8_t *buffer;
2879         size_t buf_cnt;
2880         uint32_t image_size;
2881         uint32_t min_address = 0;
2882         uint32_t max_address = 0xffffffff;
2883         int i;
2884         struct image image;
2885
2886         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2887                         &image, &min_address, &max_address);
2888         if (ERROR_OK != retval)
2889                 return retval;
2890
2891         struct target *target = get_current_target(CMD_CTX);
2892
2893         struct duration bench;
2894         duration_start(&bench);
2895
2896         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2897                 return ERROR_OK;
2898
2899         image_size = 0x0;
2900         retval = ERROR_OK;
2901         for (i = 0; i < image.num_sections; i++) {
2902                 buffer = malloc(image.sections[i].size);
2903                 if (buffer == NULL) {
2904                         command_print(CMD_CTX,
2905                                                   "error allocating buffer for section (%d bytes)",
2906                                                   (int)(image.sections[i].size));
2907                         break;
2908                 }
2909
2910                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2911                 if (retval != ERROR_OK) {
2912                         free(buffer);
2913                         break;
2914                 }
2915
2916                 uint32_t offset = 0;
2917                 uint32_t length = buf_cnt;
2918
2919                 /* DANGER!!! beware of unsigned comparision here!!! */
2920
2921                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2922                                 (image.sections[i].base_address < max_address)) {
2923
2924                         if (image.sections[i].base_address < min_address) {
2925                                 /* clip addresses below */
2926                                 offset += min_address-image.sections[i].base_address;
2927                                 length -= offset;
2928                         }
2929
2930                         if (image.sections[i].base_address + buf_cnt > max_address)
2931                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2932
2933                         retval = target_write_buffer(target,
2934                                         image.sections[i].base_address + offset, length, buffer + offset);
2935                         if (retval != ERROR_OK) {
2936                                 free(buffer);
2937                                 break;
2938                         }
2939                         image_size += length;
2940                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2941                                         (unsigned int)length,
2942                                         image.sections[i].base_address + offset);
2943                 }
2944
2945                 free(buffer);
2946         }
2947
2948         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2949                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2950                                 "in %fs (%0.3f KiB/s)", image_size,
2951                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2952         }
2953
2954         image_close(&image);
2955
2956         return retval;
2957
2958 }
2959
2960 COMMAND_HANDLER(handle_dump_image_command)
2961 {
2962         struct fileio fileio;
2963         uint8_t *buffer;
2964         int retval, retvaltemp;
2965         uint32_t address, size;
2966         struct duration bench;
2967         struct target *target = get_current_target(CMD_CTX);
2968
2969         if (CMD_ARGC != 3)
2970                 return ERROR_COMMAND_SYNTAX_ERROR;
2971
2972         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2973         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2974
2975         uint32_t buf_size = (size > 4096) ? 4096 : size;
2976         buffer = malloc(buf_size);
2977         if (!buffer)
2978                 return ERROR_FAIL;
2979
2980         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2981         if (retval != ERROR_OK) {
2982                 free(buffer);
2983                 return retval;
2984         }
2985
2986         duration_start(&bench);
2987
2988         while (size > 0) {
2989                 size_t size_written;
2990                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2991                 retval = target_read_buffer(target, address, this_run_size, buffer);
2992                 if (retval != ERROR_OK)
2993                         break;
2994
2995                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2996                 if (retval != ERROR_OK)
2997                         break;
2998
2999                 size -= this_run_size;
3000                 address += this_run_size;
3001         }
3002
3003         free(buffer);
3004
3005         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3006                 int filesize;
3007                 retval = fileio_size(&fileio, &filesize);
3008                 if (retval != ERROR_OK)
3009                         return retval;
3010                 command_print(CMD_CTX,
3011                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
3012                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3013         }
3014
3015         retvaltemp = fileio_close(&fileio);
3016         if (retvaltemp != ERROR_OK)
3017                 return retvaltemp;
3018
3019         return retval;
3020 }
3021
3022 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
3023 {
3024         uint8_t *buffer;
3025         size_t buf_cnt;
3026         uint32_t image_size;
3027         int i;
3028         int retval;
3029         uint32_t checksum = 0;
3030         uint32_t mem_checksum = 0;
3031
3032         struct image image;
3033
3034         struct target *target = get_current_target(CMD_CTX);
3035
3036         if (CMD_ARGC < 1)
3037                 return ERROR_COMMAND_SYNTAX_ERROR;
3038
3039         if (!target) {
3040                 LOG_ERROR("no target selected");
3041                 return ERROR_FAIL;
3042         }
3043
3044         struct duration bench;
3045         duration_start(&bench);
3046
3047         if (CMD_ARGC >= 2) {
3048                 uint32_t addr;
3049                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
3050                 image.base_address = addr;
3051                 image.base_address_set = 1;
3052         } else {
3053                 image.base_address_set = 0;
3054                 image.base_address = 0x0;
3055         }
3056
3057         image.start_address_set = 0;
3058
3059         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3060         if (retval != ERROR_OK)
3061                 return retval;
3062
3063         image_size = 0x0;
3064         int diffs = 0;
3065         retval = ERROR_OK;
3066         for (i = 0; i < image.num_sections; i++) {
3067                 buffer = malloc(image.sections[i].size);
3068                 if (buffer == NULL) {
3069                         command_print(CMD_CTX,
3070                                         "error allocating buffer for section (%d bytes)",
3071                                         (int)(image.sections[i].size));
3072                         break;
3073                 }
3074                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3075                 if (retval != ERROR_OK) {
3076                         free(buffer);
3077                         break;
3078                 }
3079
3080                 if (verify) {
3081                         /* calculate checksum of image */
3082                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3083                         if (retval != ERROR_OK) {
3084                                 free(buffer);
3085                                 break;
3086                         }
3087
3088                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3089                         if (retval != ERROR_OK) {
3090                                 free(buffer);
3091                                 break;
3092                         }
3093
3094                         if (checksum != mem_checksum) {
3095                                 /* failed crc checksum, fall back to a binary compare */
3096                                 uint8_t *data;
3097
3098                                 if (diffs == 0)
3099                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3100
3101                                 data = (uint8_t *)malloc(buf_cnt);
3102
3103                                 /* Can we use 32bit word accesses? */
3104                                 int size = 1;
3105                                 int count = buf_cnt;
3106                                 if ((count % 4) == 0) {
3107                                         size *= 4;
3108                                         count /= 4;
3109                                 }
3110                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3111                                 if (retval == ERROR_OK) {
3112                                         uint32_t t;
3113                                         for (t = 0; t < buf_cnt; t++) {
3114                                                 if (data[t] != buffer[t]) {
3115                                                         command_print(CMD_CTX,
3116                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3117                                                                                   diffs,
3118                                                                                   (unsigned)(t + image.sections[i].base_address),
3119                                                                                   data[t],
3120                                                                                   buffer[t]);
3121                                                         if (diffs++ >= 127) {
3122                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3123                                                                 free(data);
3124                                                                 free(buffer);
3125                                                                 goto done;
3126                                                         }
3127                                                 }
3128                                                 keep_alive();
3129                                         }
3130                                 }
3131                                 free(data);
3132                         }
3133                 } else {
3134                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3135                                                   image.sections[i].base_address,
3136                                                   buf_cnt);
3137                 }
3138
3139                 free(buffer);
3140                 image_size += buf_cnt;
3141         }
3142         if (diffs > 0)
3143                 command_print(CMD_CTX, "No more differences found.");
3144 done:
3145         if (diffs > 0)
3146                 retval = ERROR_FAIL;
3147         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3148                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3149                                 "in %fs (%0.3f KiB/s)", image_size,
3150                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3151         }
3152
3153         image_close(&image);
3154
3155         return retval;
3156 }
3157
3158 COMMAND_HANDLER(handle_verify_image_command)
3159 {
3160         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3161 }
3162
3163 COMMAND_HANDLER(handle_test_image_command)
3164 {
3165         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3166 }
3167
3168 static int handle_bp_command_list(struct command_context *cmd_ctx)
3169 {
3170         struct target *target = get_current_target(cmd_ctx);
3171         struct breakpoint *breakpoint = target->breakpoints;
3172         while (breakpoint) {
3173                 if (breakpoint->type == BKPT_SOFT) {
3174                         char *buf = buf_to_str(breakpoint->orig_instr,
3175                                         breakpoint->length, 16);
3176                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3177                                         breakpoint->address,
3178                                         breakpoint->length,
3179                                         breakpoint->set, buf);
3180                         free(buf);
3181                 } else {
3182                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3183                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3184                                                         breakpoint->asid,
3185                                                         breakpoint->length, breakpoint->set);
3186                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3187                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3188                                                         breakpoint->address,
3189                                                         breakpoint->length, breakpoint->set);
3190                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3191                                                         breakpoint->asid);
3192                         } else
3193                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3194                                                         breakpoint->address,
3195                                                         breakpoint->length, breakpoint->set);
3196                 }
3197
3198                 breakpoint = breakpoint->next;
3199         }
3200         return ERROR_OK;
3201 }
3202
3203 static int handle_bp_command_set(struct command_context *cmd_ctx,
3204                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3205 {
3206         struct target *target = get_current_target(cmd_ctx);
3207
3208         if (asid == 0) {
3209                 int retval = breakpoint_add(target, addr, length, hw);
3210                 if (ERROR_OK == retval)
3211                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3212                 else {
3213                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3214                         return retval;
3215                 }
3216         } else if (addr == 0) {
3217                 int retval = context_breakpoint_add(target, asid, length, hw);
3218                 if (ERROR_OK == retval)
3219                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3220                 else {
3221                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3222                         return retval;
3223                 }
3224         } else {
3225                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3226                 if (ERROR_OK == retval)
3227                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3228                 else {
3229                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3230                         return retval;
3231                 }
3232         }
3233         return ERROR_OK;
3234 }
3235
3236 COMMAND_HANDLER(handle_bp_command)
3237 {
3238         uint32_t addr;
3239         uint32_t asid;
3240         uint32_t length;
3241         int hw = BKPT_SOFT;
3242
3243         switch (CMD_ARGC) {
3244                 case 0:
3245                         return handle_bp_command_list(CMD_CTX);
3246
3247                 case 2:
3248                         asid = 0;
3249                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3250                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3251                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3252
3253                 case 3:
3254                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3255                                 hw = BKPT_HARD;
3256                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3257
3258                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3259
3260                                 asid = 0;
3261                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3262                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3263                                 hw = BKPT_HARD;
3264                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3265                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3266                                 addr = 0;
3267                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3268                         }
3269
3270                 case 4:
3271                         hw = BKPT_HARD;
3272                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3273                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3274                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3275                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3276
3277                 default:
3278                         return ERROR_COMMAND_SYNTAX_ERROR;
3279         }
3280 }
3281
3282 COMMAND_HANDLER(handle_rbp_command)
3283 {
3284         if (CMD_ARGC != 1)
3285                 return ERROR_COMMAND_SYNTAX_ERROR;
3286
3287         uint32_t addr;
3288         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3289
3290         struct target *target = get_current_target(CMD_CTX);
3291         breakpoint_remove(target, addr);
3292
3293         return ERROR_OK;
3294 }
3295
3296 COMMAND_HANDLER(handle_wp_command)
3297 {
3298         struct target *target = get_current_target(CMD_CTX);
3299
3300         if (CMD_ARGC == 0) {
3301                 struct watchpoint *watchpoint = target->watchpoints;
3302
3303                 while (watchpoint) {
3304                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3305                                         ", len: 0x%8.8" PRIx32
3306                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3307                                         ", mask: 0x%8.8" PRIx32,
3308                                         watchpoint->address,
3309                                         watchpoint->length,
3310                                         (int)watchpoint->rw,
3311                                         watchpoint->value,
3312                                         watchpoint->mask);
3313                         watchpoint = watchpoint->next;
3314                 }
3315                 return ERROR_OK;
3316         }
3317
3318         enum watchpoint_rw type = WPT_ACCESS;
3319         uint32_t addr = 0;
3320         uint32_t length = 0;
3321         uint32_t data_value = 0x0;
3322         uint32_t data_mask = 0xffffffff;
3323
3324         switch (CMD_ARGC) {
3325         case 5:
3326                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3327                 /* fall through */
3328         case 4:
3329                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3330                 /* fall through */
3331         case 3:
3332                 switch (CMD_ARGV[2][0]) {
3333                 case 'r':
3334                         type = WPT_READ;
3335                         break;
3336                 case 'w':
3337                         type = WPT_WRITE;
3338                         break;
3339                 case 'a':
3340                         type = WPT_ACCESS;
3341                         break;
3342                 default:
3343                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3344                         return ERROR_COMMAND_SYNTAX_ERROR;
3345                 }
3346                 /* fall through */
3347         case 2:
3348                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3349                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3350                 break;
3351
3352         default:
3353                 return ERROR_COMMAND_SYNTAX_ERROR;
3354         }
3355
3356         int retval = watchpoint_add(target, addr, length, type,
3357                         data_value, data_mask);
3358         if (ERROR_OK != retval)
3359                 LOG_ERROR("Failure setting watchpoints");
3360
3361         return retval;
3362 }
3363
3364 COMMAND_HANDLER(handle_rwp_command)
3365 {
3366         if (CMD_ARGC != 1)
3367                 return ERROR_COMMAND_SYNTAX_ERROR;
3368
3369         uint32_t addr;
3370         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3371
3372         struct target *target = get_current_target(CMD_CTX);
3373         watchpoint_remove(target, addr);
3374
3375         return ERROR_OK;
3376 }
3377
3378 /**
3379  * Translate a virtual address to a physical address.
3380  *
3381  * The low-level target implementation must have logged a detailed error
3382  * which is forwarded to telnet/GDB session.
3383  */
3384 COMMAND_HANDLER(handle_virt2phys_command)
3385 {
3386         if (CMD_ARGC != 1)
3387                 return ERROR_COMMAND_SYNTAX_ERROR;
3388
3389         uint32_t va;
3390         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3391         uint32_t pa;
3392
3393         struct target *target = get_current_target(CMD_CTX);
3394         int retval = target->type->virt2phys(target, va, &pa);
3395         if (retval == ERROR_OK)
3396                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3397
3398         return retval;
3399 }
3400
3401 static void writeData(FILE *f, const void *data, size_t len)
3402 {
3403         size_t written = fwrite(data, 1, len, f);
3404         if (written != len)
3405                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3406 }
3407
3408 static void writeLong(FILE *f, int l)
3409 {
3410         int i;
3411         for (i = 0; i < 4; i++) {
3412                 char c = (l >> (i*8))&0xff;
3413                 writeData(f, &c, 1);
3414         }
3415
3416 }
3417
3418 static void writeString(FILE *f, char *s)
3419 {
3420         writeData(f, s, strlen(s));
3421 }
3422
3423 typedef unsigned char UNIT[2];  /* unit of profiling */
3424
3425 /* Dump a gmon.out histogram file. */
3426 static void write_gmon(uint32_t *samples, uint32_t sampleNum, const char *filename,
3427                 bool with_range, uint32_t start_address, uint32_t end_address)
3428 {
3429         uint32_t i;
3430         FILE *f = fopen(filename, "w");
3431         if (f == NULL)
3432                 return;
3433         writeString(f, "gmon");
3434         writeLong(f, 0x00000001); /* Version */
3435         writeLong(f, 0); /* padding */
3436         writeLong(f, 0); /* padding */
3437         writeLong(f, 0); /* padding */
3438
3439         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3440         writeData(f, &zero, 1);
3441
3442         /* figure out bucket size */
3443         uint32_t min;
3444         uint32_t max;
3445         if (with_range) {
3446                 min = start_address;
3447                 max = end_address;
3448         } else {
3449                 min = samples[0];
3450                 max = samples[0];
3451                 for (i = 0; i < sampleNum; i++) {
3452                         if (min > samples[i])
3453                                 min = samples[i];
3454                         if (max < samples[i])
3455                                 max = samples[i];
3456                 }
3457
3458                 /* max should be (largest sample + 1)
3459                  * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3460                 max++;
3461         }
3462
3463         int addressSpace = max - min;
3464         assert(addressSpace >= 2);
3465
3466         /* FIXME: What is the reasonable number of buckets?
3467          * The profiling result will be more accurate if there are enough buckets. */
3468         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3469         uint32_t numBuckets = addressSpace / sizeof(UNIT);
3470         if (numBuckets > maxBuckets)
3471                 numBuckets = maxBuckets;
3472         int *buckets = malloc(sizeof(int) * numBuckets);
3473         if (buckets == NULL) {
3474                 fclose(f);
3475                 return;
3476         }
3477         memset(buckets, 0, sizeof(int) * numBuckets);
3478         for (i = 0; i < sampleNum; i++) {
3479                 uint32_t address = samples[i];
3480
3481                 if ((address < min) || (max <= address))
3482                         continue;
3483
3484                 long long a = address - min;
3485                 long long b = numBuckets;
3486                 long long c = addressSpace;
3487                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3488                 buckets[index_t]++;
3489         }
3490
3491         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3492         writeLong(f, min);                      /* low_pc */
3493         writeLong(f, max);                      /* high_pc */
3494         writeLong(f, numBuckets);       /* # of buckets */
3495         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3496         writeString(f, "seconds");
3497         for (i = 0; i < (15-strlen("seconds")); i++)
3498                 writeData(f, &zero, 1);
3499         writeString(f, "s");
3500
3501         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3502
3503         char *data = malloc(2 * numBuckets);
3504         if (data != NULL) {
3505                 for (i = 0; i < numBuckets; i++) {
3506                         int val;
3507                         val = buckets[i];
3508                         if (val > 65535)
3509                                 val = 65535;
3510                         data[i * 2] = val&0xff;
3511                         data[i * 2 + 1] = (val >> 8) & 0xff;
3512                 }
3513                 free(buckets);
3514                 writeData(f, data, numBuckets * 2);
3515                 free(data);
3516         } else
3517                 free(buckets);
3518
3519         fclose(f);
3520 }
3521
3522 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3523  * which will be used as a random sampling of PC */
3524 COMMAND_HANDLER(handle_profile_command)
3525 {
3526         struct target *target = get_current_target(CMD_CTX);
3527
3528         if ((CMD_ARGC != 2) && (CMD_ARGC != 4))
3529                 return ERROR_COMMAND_SYNTAX_ERROR;
3530
3531         const uint32_t MAX_PROFILE_SAMPLE_NUM = 10000;
3532         uint32_t offset;
3533         uint32_t num_of_sampels;
3534         int retval = ERROR_OK;
3535         uint32_t *samples = malloc(sizeof(uint32_t) * MAX_PROFILE_SAMPLE_NUM);
3536         if (samples == NULL) {
3537                 LOG_ERROR("No memory to store samples.");
3538                 return ERROR_FAIL;
3539         }
3540
3541         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3542
3543         /**
3544          * Some cores let us sample the PC without the
3545          * annoying halt/resume step; for example, ARMv7 PCSR.
3546          * Provide a way to use that more efficient mechanism.
3547          */
3548         retval = target_profiling(target, samples, MAX_PROFILE_SAMPLE_NUM,
3549                                 &num_of_sampels, offset);
3550         if (retval != ERROR_OK) {
3551                 free(samples);
3552                 return retval;
3553         }
3554
3555         assert(num_of_sampels <= MAX_PROFILE_SAMPLE_NUM);
3556
3557         retval = target_poll(target);
3558         if (retval != ERROR_OK) {
3559                 free(samples);
3560                 return retval;
3561         }
3562         if (target->state == TARGET_RUNNING) {
3563                 retval = target_halt(target);
3564                 if (retval != ERROR_OK) {
3565                         free(samples);
3566                         return retval;
3567                 }
3568         }
3569
3570         retval = target_poll(target);
3571         if (retval != ERROR_OK) {
3572                 free(samples);
3573                 return retval;
3574         }
3575
3576         uint32_t start_address = 0;
3577         uint32_t end_address = 0;
3578         bool with_range = false;
3579         if (CMD_ARGC == 4) {
3580                 with_range = true;
3581                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], start_address);
3582                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[3], end_address);
3583         }
3584
3585         write_gmon(samples, num_of_sampels, CMD_ARGV[1],
3586                         with_range, start_address, end_address);
3587         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3588
3589         free(samples);
3590         return retval;
3591 }
3592
3593 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3594 {
3595         char *namebuf;
3596         Jim_Obj *nameObjPtr, *valObjPtr;
3597         int result;
3598
3599         namebuf = alloc_printf("%s(%d)", varname, idx);
3600         if (!namebuf)
3601                 return JIM_ERR;
3602
3603         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3604         valObjPtr = Jim_NewIntObj(interp, val);
3605         if (!nameObjPtr || !valObjPtr) {
3606                 free(namebuf);
3607                 return JIM_ERR;
3608         }
3609
3610         Jim_IncrRefCount(nameObjPtr);
3611         Jim_IncrRefCount(valObjPtr);
3612         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3613         Jim_DecrRefCount(interp, nameObjPtr);
3614         Jim_DecrRefCount(interp, valObjPtr);
3615         free(namebuf);
3616         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3617         return result;
3618 }
3619
3620 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3621 {
3622         struct command_context *context;
3623         struct target *target;
3624
3625         context = current_command_context(interp);
3626         assert(context != NULL);
3627
3628         target = get_current_target(context);
3629         if (target == NULL) {
3630                 LOG_ERROR("mem2array: no current target");
3631                 return JIM_ERR;
3632         }
3633
3634         return target_mem2array(interp, target, argc - 1, argv + 1);
3635 }
3636
3637 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3638 {
3639         long l;
3640         uint32_t width;
3641         int len;
3642         uint32_t addr;
3643         uint32_t count;
3644         uint32_t v;
3645         const char *varname;
3646         int  n, e, retval;
3647         uint32_t i;
3648
3649         /* argv[1] = name of array to receive the data
3650          * argv[2] = desired width
3651          * argv[3] = memory address
3652          * argv[4] = count of times to read
3653          */
3654         if (argc != 4) {
3655                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3656                 return JIM_ERR;
3657         }
3658         varname = Jim_GetString(argv[0], &len);
3659         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3660
3661         e = Jim_GetLong(interp, argv[1], &l);
3662         width = l;
3663         if (e != JIM_OK)
3664                 return e;
3665
3666         e = Jim_GetLong(interp, argv[2], &l);
3667         addr = l;
3668         if (e != JIM_OK)
3669                 return e;
3670         e = Jim_GetLong(interp, argv[3], &l);
3671         len = l;
3672         if (e != JIM_OK)
3673                 return e;
3674         switch (width) {
3675                 case 8:
3676                         width = 1;
3677                         break;
3678                 case 16:
3679                         width = 2;
3680                         break;
3681                 case 32:
3682                         width = 4;
3683                         break;
3684                 default:
3685                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3686                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3687                         return JIM_ERR;
3688         }
3689         if (len == 0) {
3690                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3691                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3692                 return JIM_ERR;
3693         }
3694         if ((addr + (len * width)) < addr) {
3695                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3696                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3697                 return JIM_ERR;
3698         }
3699         /* absurd transfer size? */
3700         if (len > 65536) {
3701                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3702                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3703                 return JIM_ERR;
3704         }
3705
3706         if ((width == 1) ||
3707                 ((width == 2) && ((addr & 1) == 0)) ||
3708                 ((width == 4) && ((addr & 3) == 0))) {
3709                 /* all is well */
3710         } else {
3711                 char buf[100];
3712                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3713                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3714                                 addr,
3715                                 width);
3716                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3717                 return JIM_ERR;
3718         }
3719
3720         /* Transfer loop */
3721
3722         /* index counter */
3723         n = 0;
3724
3725         size_t buffersize = 4096;
3726         uint8_t *buffer = malloc(buffersize);
3727         if (buffer == NULL)
3728                 return JIM_ERR;
3729
3730         /* assume ok */
3731         e = JIM_OK;
3732         while (len) {
3733                 /* Slurp... in buffer size chunks */
3734
3735                 count = len; /* in objects.. */
3736                 if (count > (buffersize / width))
3737                         count = (buffersize / width);
3738
3739                 retval = target_read_memory(target, addr, width, count, buffer);
3740                 if (retval != ERROR_OK) {
3741                         /* BOO !*/
3742                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3743                                           (unsigned int)addr,
3744                                           (int)width,
3745                                           (int)count);
3746                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3747                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3748                         e = JIM_ERR;
3749                         break;
3750                 } else {
3751                         v = 0; /* shut up gcc */
3752                         for (i = 0; i < count ; i++, n++) {
3753                                 switch (width) {
3754                                         case 4:
3755                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3756                                                 break;
3757                                         case 2:
3758                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3759                                                 break;
3760                                         case 1:
3761                                                 v = buffer[i] & 0x0ff;
3762                                                 break;
3763                                 }
3764                                 new_int_array_element(interp, varname, n, v);
3765                         }
3766                         len -= count;
3767                 }
3768         }
3769
3770         free(buffer);
3771
3772         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3773
3774         return e;
3775 }
3776
3777 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3778 {
3779         char *namebuf;
3780         Jim_Obj *nameObjPtr, *valObjPtr;
3781         int result;
3782         long l;
3783
3784         namebuf = alloc_printf("%s(%d)", varname, idx);
3785         if (!namebuf)
3786                 return JIM_ERR;
3787
3788         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3789         if (!nameObjPtr) {
3790                 free(namebuf);
3791                 return JIM_ERR;
3792         }
3793
3794         Jim_IncrRefCount(nameObjPtr);
3795         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3796         Jim_DecrRefCount(interp, nameObjPtr);
3797         free(namebuf);
3798         if (valObjPtr == NULL)
3799                 return JIM_ERR;
3800
3801         result = Jim_GetLong(interp, valObjPtr, &l);
3802         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3803         *val = l;
3804         return result;
3805 }
3806
3807 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3808 {
3809         struct command_context *context;
3810         struct target *target;
3811
3812         context = current_command_context(interp);
3813         assert(context != NULL);
3814
3815         target = get_current_target(context);
3816         if (target == NULL) {
3817                 LOG_ERROR("array2mem: no current target");
3818                 return JIM_ERR;
3819         }
3820
3821         return target_array2mem(interp, target, argc-1, argv + 1);
3822 }
3823
3824 static int target_array2mem(Jim_Interp *interp, struct target *target,
3825                 int argc, Jim_Obj *const *argv)
3826 {
3827         long l;
3828         uint32_t width;
3829         int len;
3830         uint32_t addr;
3831         uint32_t count;
3832         uint32_t v;
3833         const char *varname;
3834         int  n, e, retval;
3835         uint32_t i;
3836
3837         /* argv[1] = name of array to get the data
3838          * argv[2] = desired width
3839          * argv[3] = memory address
3840          * argv[4] = count to write
3841          */
3842         if (argc != 4) {
3843                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3844                 return JIM_ERR;
3845         }
3846         varname = Jim_GetString(argv[0], &len);
3847         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3848
3849         e = Jim_GetLong(interp, argv[1], &l);
3850         width = l;
3851         if (e != JIM_OK)
3852                 return e;
3853
3854         e = Jim_GetLong(interp, argv[2], &l);
3855         addr = l;
3856         if (e != JIM_OK)
3857                 return e;
3858         e = Jim_GetLong(interp, argv[3], &l);
3859         len = l;
3860         if (e != JIM_OK)
3861                 return e;
3862         switch (width) {
3863                 case 8:
3864                         width = 1;
3865                         break;
3866                 case 16:
3867                         width = 2;
3868                         break;
3869                 case 32:
3870                         width = 4;
3871                         break;
3872                 default:
3873                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3874                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3875                                         "Invalid width param, must be 8/16/32", NULL);
3876                         return JIM_ERR;
3877         }
3878         if (len == 0) {
3879                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3880                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3881                                 "array2mem: zero width read?", NULL);
3882                 return JIM_ERR;
3883         }
3884         if ((addr + (len * width)) < addr) {
3885                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3886                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3887                                 "array2mem: addr + len - wraps to zero?", NULL);
3888                 return JIM_ERR;
3889         }
3890         /* absurd transfer size? */
3891         if (len > 65536) {
3892                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3893                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3894                                 "array2mem: absurd > 64K item request", NULL);
3895                 return JIM_ERR;
3896         }
3897
3898         if ((width == 1) ||
3899                 ((width == 2) && ((addr & 1) == 0)) ||
3900                 ((width == 4) && ((addr & 3) == 0))) {
3901                 /* all is well */
3902         } else {
3903                 char buf[100];
3904                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3905                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3906                                 (unsigned int)addr,
3907                                 (int)width);
3908                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3909                 return JIM_ERR;
3910         }
3911
3912         /* Transfer loop */
3913
3914         /* index counter */
3915         n = 0;
3916         /* assume ok */
3917         e = JIM_OK;
3918
3919         size_t buffersize = 4096;
3920         uint8_t *buffer = malloc(buffersize);
3921         if (buffer == NULL)
3922                 return JIM_ERR;
3923
3924         while (len) {
3925                 /* Slurp... in buffer size chunks */
3926
3927                 count = len; /* in objects.. */
3928                 if (count > (buffersize / width))
3929                         count = (buffersize / width);
3930
3931                 v = 0; /* shut up gcc */
3932                 for (i = 0; i < count; i++, n++) {
3933                         get_int_array_element(interp, varname, n, &v);
3934                         switch (width) {
3935                         case 4:
3936                                 target_buffer_set_u32(target, &buffer[i * width], v);
3937                                 break;
3938                         case 2:
3939                                 target_buffer_set_u16(target, &buffer[i * width], v);
3940                                 break;
3941                         case 1:
3942                                 buffer[i] = v & 0x0ff;
3943                                 break;
3944                         }
3945                 }
3946                 len -= count;
3947
3948                 retval = target_write_memory(target, addr, width, count, buffer);
3949                 if (retval != ERROR_OK) {
3950                         /* BOO !*/
3951                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3952                                           (unsigned int)addr,
3953                                           (int)width,
3954                                           (int)count);
3955                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3956                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3957                         e = JIM_ERR;
3958                         break;
3959                 }
3960         }
3961
3962         free(buffer);
3963
3964         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3965
3966         return e;
3967 }
3968
3969 /* FIX? should we propagate errors here rather than printing them
3970  * and continuing?
3971  */
3972 void target_handle_event(struct target *target, enum target_event e)
3973 {
3974         struct target_event_action *teap;
3975
3976         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3977                 if (teap->event == e) {
3978                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3979                                            target->target_number,
3980                                            target_name(target),
3981                                            target_type_name(target),
3982                                            e,
3983                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3984                                            Jim_GetString(teap->body, NULL));
3985                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3986                                 Jim_MakeErrorMessage(teap->interp);
3987                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3988                         }
3989                 }
3990         }
3991 }
3992
3993 /**
3994  * Returns true only if the target has a handler for the specified event.
3995  */
3996 bool target_has_event_action(struct target *target, enum target_event event)
3997 {
3998         struct target_event_action *teap;
3999
4000         for (teap = target->event_action; teap != NULL; teap = teap->next) {
4001                 if (teap->event == event)
4002                         return true;
4003         }
4004         return false;
4005 }
4006
4007 enum target_cfg_param {
4008         TCFG_TYPE,
4009         TCFG_EVENT,
4010         TCFG_WORK_AREA_VIRT,
4011         TCFG_WORK_AREA_PHYS,
4012         TCFG_WORK_AREA_SIZE,
4013         TCFG_WORK_AREA_BACKUP,
4014         TCFG_ENDIAN,
4015         TCFG_VARIANT,
4016         TCFG_COREID,
4017         TCFG_CHAIN_POSITION,
4018         TCFG_DBGBASE,
4019         TCFG_RTOS,
4020 };
4021
4022 static Jim_Nvp nvp_config_opts[] = {
4023         { .name = "-type",             .value = TCFG_TYPE },
4024         { .name = "-event",            .value = TCFG_EVENT },
4025         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
4026         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
4027         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
4028         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
4029         { .name = "-endian" ,          .value = TCFG_ENDIAN },
4030         { .name = "-variant",          .value = TCFG_VARIANT },
4031         { .name = "-coreid",           .value = TCFG_COREID },
4032         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
4033         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
4034         { .name = "-rtos",             .value = TCFG_RTOS },
4035         { .name = NULL, .value = -1 }
4036 };
4037
4038 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
4039 {
4040         Jim_Nvp *n;
4041         Jim_Obj *o;
4042         jim_wide w;
4043         char *cp;
4044         int e;
4045
4046         /* parse config or cget options ... */
4047         while (goi->argc > 0) {
4048                 Jim_SetEmptyResult(goi->interp);
4049                 /* Jim_GetOpt_Debug(goi); */
4050
4051                 if (target->type->target_jim_configure) {
4052                         /* target defines a configure function */
4053                         /* target gets first dibs on parameters */
4054                         e = (*(target->type->target_jim_configure))(target, goi);
4055                         if (e == JIM_OK) {
4056                                 /* more? */
4057                                 continue;
4058                         }
4059                         if (e == JIM_ERR) {
4060                                 /* An error */
4061                                 return e;
4062                         }
4063                         /* otherwise we 'continue' below */
4064                 }
4065                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4066                 if (e != JIM_OK) {
4067                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4068                         return e;
4069                 }
4070                 switch (n->value) {
4071                 case TCFG_TYPE:
4072                         /* not setable */
4073                         if (goi->isconfigure) {
4074                                 Jim_SetResultFormatted(goi->interp,
4075                                                 "not settable: %s", n->name);
4076                                 return JIM_ERR;
4077                         } else {
4078 no_params:
4079                                 if (goi->argc != 0) {
4080                                         Jim_WrongNumArgs(goi->interp,
4081                                                         goi->argc, goi->argv,
4082                                                         "NO PARAMS");
4083                                         return JIM_ERR;
4084                                 }
4085                         }
4086                         Jim_SetResultString(goi->interp,
4087                                         target_type_name(target), -1);
4088                         /* loop for more */
4089                         break;
4090                 case TCFG_EVENT:
4091                         if (goi->argc == 0) {
4092                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4093                                 return JIM_ERR;
4094                         }
4095
4096                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4097                         if (e != JIM_OK) {
4098                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4099                                 return e;
4100                         }
4101
4102                         if (goi->isconfigure) {
4103                                 if (goi->argc != 1) {
4104                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4105                                         return JIM_ERR;
4106                                 }
4107                         } else {
4108                                 if (goi->argc != 0) {
4109                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4110                                         return JIM_ERR;
4111                                 }
4112                         }
4113
4114                         {
4115                                 struct target_event_action *teap;
4116
4117                                 teap = target->event_action;
4118                                 /* replace existing? */
4119                                 while (teap) {
4120                                         if (teap->event == (enum target_event)n->value)
4121                                                 break;
4122                                         teap = teap->next;
4123                                 }
4124
4125                                 if (goi->isconfigure) {
4126                                         bool replace = true;
4127                                         if (teap == NULL) {
4128                                                 /* create new */
4129                                                 teap = calloc(1, sizeof(*teap));
4130                                                 replace = false;
4131                                         }
4132                                         teap->event = n->value;
4133                                         teap->interp = goi->interp;
4134                                         Jim_GetOpt_Obj(goi, &o);
4135                                         if (teap->body)
4136                                                 Jim_DecrRefCount(teap->interp, teap->body);
4137                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4138                                         /*
4139                                          * FIXME:
4140                                          *     Tcl/TK - "tk events" have a nice feature.
4141                                          *     See the "BIND" command.
4142                                          *    We should support that here.
4143                                          *     You can specify %X and %Y in the event code.
4144                                          *     The idea is: %T - target name.
4145                                          *     The idea is: %N - target number
4146                                          *     The idea is: %E - event name.
4147                                          */
4148                                         Jim_IncrRefCount(teap->body);
4149
4150                                         if (!replace) {
4151                                                 /* add to head of event list */
4152                                                 teap->next = target->event_action;
4153                                                 target->event_action = teap;
4154                                         }
4155                                         Jim_SetEmptyResult(goi->interp);
4156                                 } else {
4157                                         /* get */
4158                                         if (teap == NULL)
4159                                                 Jim_SetEmptyResult(goi->interp);
4160                                         else
4161                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4162                                 }
4163                         }
4164                         /* loop for more */
4165                         break;
4166
4167                 case TCFG_WORK_AREA_VIRT:
4168                         if (goi->isconfigure) {
4169                                 target_free_all_working_areas(target);
4170                                 e = Jim_GetOpt_Wide(goi, &w);
4171                                 if (e != JIM_OK)
4172                                         return e;
4173                                 target->working_area_virt = w;
4174                                 target->working_area_virt_spec = true;
4175                         } else {
4176                                 if (goi->argc != 0)
4177                                         goto no_params;
4178                         }
4179                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4180                         /* loop for more */
4181                         break;
4182
4183                 case TCFG_WORK_AREA_PHYS:
4184                         if (goi->isconfigure) {
4185                                 target_free_all_working_areas(target);
4186                                 e = Jim_GetOpt_Wide(goi, &w);
4187                                 if (e != JIM_OK)
4188                                         return e;
4189                                 target->working_area_phys = w;
4190                                 target->working_area_phys_spec = true;
4191                         } else {
4192                                 if (goi->argc != 0)
4193                                         goto no_params;
4194                         }
4195                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4196                         /* loop for more */
4197                         break;
4198
4199                 case TCFG_WORK_AREA_SIZE:
4200                         if (goi->isconfigure) {
4201                                 target_free_all_working_areas(target);
4202                                 e = Jim_GetOpt_Wide(goi, &w);
4203                                 if (e != JIM_OK)
4204                                         return e;
4205                                 target->working_area_size = w;
4206                         } else {
4207                                 if (goi->argc != 0)
4208                                         goto no_params;
4209                         }
4210                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4211                         /* loop for more */
4212                         break;
4213
4214                 case TCFG_WORK_AREA_BACKUP:
4215                         if (goi->isconfigure) {
4216                                 target_free_all_working_areas(target);
4217                                 e = Jim_GetOpt_Wide(goi, &w);
4218                                 if (e != JIM_OK)
4219                                         return e;
4220                                 /* make this exactly 1 or 0 */
4221                                 target->backup_working_area = (!!w);
4222                         } else {
4223                                 if (goi->argc != 0)
4224                                         goto no_params;
4225                         }
4226                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4227                         /* loop for more e*/
4228                         break;
4229
4230
4231                 case TCFG_ENDIAN:
4232                         if (goi->isconfigure) {
4233                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4234                                 if (e != JIM_OK) {
4235                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4236                                         return e;
4237                                 }
4238                                 target->endianness = n->value;
4239                         } else {
4240                                 if (goi->argc != 0)
4241                                         goto no_params;
4242                         }
4243                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4244                         if (n->name == NULL) {
4245                                 target->endianness = TARGET_LITTLE_ENDIAN;
4246                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4247                         }
4248                         Jim_SetResultString(goi->interp, n->name, -1);
4249                         /* loop for more */
4250                         break;
4251
4252                 case TCFG_VARIANT:
4253                         if (goi->isconfigure) {
4254                                 if (goi->argc < 1) {
4255                                         Jim_SetResultFormatted(goi->interp,
4256                                                                                    "%s ?STRING?",
4257                                                                                    n->name);
4258                                         return JIM_ERR;
4259                                 }
4260                                 if (target->variant)
4261                                         free((void *)(target->variant));
4262                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4263                                 if (e != JIM_OK)
4264                                         return e;
4265                                 target->variant = strdup(cp);
4266                         } else {
4267                                 if (goi->argc != 0)
4268                                         goto no_params;
4269                         }
4270                         Jim_SetResultString(goi->interp, target->variant, -1);
4271                         /* loop for more */
4272                         break;
4273
4274                 case TCFG_COREID:
4275                         if (goi->isconfigure) {
4276                                 e = Jim_GetOpt_Wide(goi, &w);
4277                                 if (e != JIM_OK)
4278                                         return e;
4279                                 target->coreid = (int32_t)w;
4280                         } else {
4281                                 if (goi->argc != 0)
4282                                         goto no_params;
4283                         }
4284                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4285                         /* loop for more */
4286                         break;
4287
4288                 case TCFG_CHAIN_POSITION:
4289                         if (goi->isconfigure) {
4290                                 Jim_Obj *o_t;
4291                                 struct jtag_tap *tap;
4292                                 target_free_all_working_areas(target);
4293                                 e = Jim_GetOpt_Obj(goi, &o_t);
4294                                 if (e != JIM_OK)
4295                                         return e;
4296                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4297                                 if (tap == NULL)
4298                                         return JIM_ERR;
4299                                 /* make this exactly 1 or 0 */
4300                                 target->tap = tap;
4301                         } else {
4302                                 if (goi->argc != 0)
4303                                         goto no_params;
4304                         }
4305                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4306                         /* loop for more e*/
4307                         break;
4308                 case TCFG_DBGBASE:
4309                         if (goi->isconfigure) {
4310                                 e = Jim_GetOpt_Wide(goi, &w);
4311                                 if (e != JIM_OK)
4312                                         return e;
4313                                 target->dbgbase = (uint32_t)w;
4314                                 target->dbgbase_set = true;
4315                         } else {
4316                                 if (goi->argc != 0)
4317                                         goto no_params;
4318                         }
4319                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4320                         /* loop for more */
4321                         break;
4322
4323                 case TCFG_RTOS:
4324                         /* RTOS */
4325                         {
4326                                 int result = rtos_create(goi, target);
4327                                 if (result != JIM_OK)
4328                                         return result;
4329                         }
4330                         /* loop for more */
4331                         break;
4332                 }
4333         } /* while (goi->argc) */
4334
4335
4336                 /* done - we return */
4337         return JIM_OK;
4338 }
4339
4340 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4341 {
4342         Jim_GetOptInfo goi;
4343
4344         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4345         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4346         int need_args = 1 + goi.isconfigure;
4347         if (goi.argc < need_args) {
4348                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4349                         goi.isconfigure
4350                                 ? "missing: -option VALUE ..."
4351                                 : "missing: -option ...");
4352                 return JIM_ERR;
4353         }
4354         struct target *target = Jim_CmdPrivData(goi.interp);
4355         return target_configure(&goi, target);
4356 }
4357
4358 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4359 {
4360         const char *cmd_name = Jim_GetString(argv[0], NULL);
4361
4362         Jim_GetOptInfo goi;
4363         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4364
4365         if (goi.argc < 2 || goi.argc > 4) {
4366                 Jim_SetResultFormatted(goi.interp,
4367                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4368                 return JIM_ERR;
4369         }
4370
4371         target_write_fn fn;
4372         fn = target_write_memory;
4373
4374         int e;
4375         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4376                 /* consume it */
4377                 struct Jim_Obj *obj;
4378                 e = Jim_GetOpt_Obj(&goi, &obj);
4379                 if (e != JIM_OK)
4380                         return e;
4381
4382                 fn = target_write_phys_memory;
4383         }
4384
4385         jim_wide a;
4386         e = Jim_GetOpt_Wide(&goi, &a);
4387         if (e != JIM_OK)
4388                 return e;
4389
4390         jim_wide b;
4391         e = Jim_GetOpt_Wide(&goi, &b);
4392         if (e != JIM_OK)
4393                 return e;
4394
4395         jim_wide c = 1;
4396         if (goi.argc == 1) {
4397                 e = Jim_GetOpt_Wide(&goi, &c);
4398                 if (e != JIM_OK)
4399                         return e;
4400         }
4401
4402         /* all args must be consumed */
4403         if (goi.argc != 0)
4404                 return JIM_ERR;
4405
4406         struct target *target = Jim_CmdPrivData(goi.interp);
4407         unsigned data_size;
4408         if (strcasecmp(cmd_name, "mww") == 0)
4409                 data_size = 4;
4410         else if (strcasecmp(cmd_name, "mwh") == 0)
4411                 data_size = 2;
4412         else if (strcasecmp(cmd_name, "mwb") == 0)
4413                 data_size = 1;
4414         else {
4415                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4416                 return JIM_ERR;
4417         }
4418
4419         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4420 }
4421
4422 /**
4423 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4424 *
4425 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4426 *         mdh [phys] <address> [<count>] - for 16 bit reads
4427 *         mdb [phys] <address> [<count>] - for  8 bit reads
4428 *
4429 *  Count defaults to 1.
4430 *
4431 *  Calls target_read_memory or target_read_phys_memory depending on
4432 *  the presence of the "phys" argument
4433 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4434 *  to int representation in base16.
4435 *  Also outputs read data in a human readable form using command_print
4436 *
4437 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4438 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4439 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4440 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4441 *  on success, with [<count>] number of elements.
4442 *
4443 *  In case of little endian target:
4444 *      Example1: "mdw 0x00000000"  returns "10123456"
4445 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4446 *      Example3: "mdb 0x00000000" returns "56"
4447 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4448 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4449 **/
4450 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4451 {
4452         const char *cmd_name = Jim_GetString(argv[0], NULL);
4453
4454         Jim_GetOptInfo goi;
4455         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4456
4457         if ((goi.argc < 1) || (goi.argc > 3)) {
4458                 Jim_SetResultFormatted(goi.interp,
4459                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4460                 return JIM_ERR;
4461         }
4462
4463         int (*fn)(struct target *target,
4464                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4465         fn = target_read_memory;
4466
4467         int e;
4468         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4469                 /* consume it */
4470                 struct Jim_Obj *obj;
4471                 e = Jim_GetOpt_Obj(&goi, &obj);
4472                 if (e != JIM_OK)
4473                         return e;
4474
4475                 fn = target_read_phys_memory;
4476         }
4477
4478         /* Read address parameter */
4479         jim_wide addr;
4480         e = Jim_GetOpt_Wide(&goi, &addr);
4481         if (e != JIM_OK)
4482                 return JIM_ERR;
4483
4484         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4485         jim_wide count;
4486         if (goi.argc == 1) {
4487                 e = Jim_GetOpt_Wide(&goi, &count);
4488                 if (e != JIM_OK)
4489                         return JIM_ERR;
4490         } else
4491                 count = 1;
4492
4493         /* all args must be consumed */
4494         if (goi.argc != 0)
4495                 return JIM_ERR;
4496
4497         jim_wide dwidth = 1; /* shut up gcc */
4498         if (strcasecmp(cmd_name, "mdw") == 0)
4499                 dwidth = 4;
4500         else if (strcasecmp(cmd_name, "mdh") == 0)
4501                 dwidth = 2;
4502         else if (strcasecmp(cmd_name, "mdb") == 0)
4503                 dwidth = 1;
4504         else {
4505                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4506                 return JIM_ERR;
4507         }
4508
4509         /* convert count to "bytes" */
4510         int bytes = count * dwidth;
4511
4512         struct target *target = Jim_CmdPrivData(goi.interp);
4513         uint8_t  target_buf[32];
4514         jim_wide x, y, z;
4515         while (bytes > 0) {
4516                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4517
4518                 /* Try to read out next block */
4519                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4520
4521                 if (e != ERROR_OK) {
4522                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4523                         return JIM_ERR;
4524                 }
4525
4526                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4527                 switch (dwidth) {
4528                 case 4:
4529                         for (x = 0; x < 16 && x < y; x += 4) {
4530                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4531                                 command_print_sameline(NULL, "%08x ", (int)(z));
4532                         }
4533                         for (; (x < 16) ; x += 4)
4534                                 command_print_sameline(NULL, "         ");
4535                         break;
4536                 case 2:
4537                         for (x = 0; x < 16 && x < y; x += 2) {
4538                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4539                                 command_print_sameline(NULL, "%04x ", (int)(z));
4540                         }
4541                         for (; (x < 16) ; x += 2)
4542                                 command_print_sameline(NULL, "     ");
4543                         break;
4544                 case 1:
4545                 default:
4546                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4547                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4548                                 command_print_sameline(NULL, "%02x ", (int)(z));
4549                         }
4550                         for (; (x < 16) ; x += 1)
4551                                 command_print_sameline(NULL, "   ");
4552                         break;
4553                 }
4554                 /* ascii-ify the bytes */
4555                 for (x = 0 ; x < y ; x++) {
4556                         if ((target_buf[x] >= 0x20) &&
4557                                 (target_buf[x] <= 0x7e)) {
4558                                 /* good */
4559                         } else {
4560                                 /* smack it */
4561                                 target_buf[x] = '.';
4562                         }
4563                 }
4564                 /* space pad  */
4565                 while (x < 16) {
4566                         target_buf[x] = ' ';
4567                         x++;
4568                 }
4569                 /* terminate */
4570                 target_buf[16] = 0;
4571                 /* print - with a newline */
4572                 command_print_sameline(NULL, "%s\n", target_buf);
4573                 /* NEXT... */
4574                 bytes -= 16;
4575                 addr += 16;
4576         }
4577         return JIM_OK;
4578 }
4579
4580 static int jim_target_mem2array(Jim_Interp *interp,
4581                 int argc, Jim_Obj *const *argv)
4582 {
4583         struct target *target = Jim_CmdPrivData(interp);
4584         return target_mem2array(interp, target, argc - 1, argv + 1);
4585 }
4586
4587 static int jim_target_array2mem(Jim_Interp *interp,
4588                 int argc, Jim_Obj *const *argv)
4589 {
4590         struct target *target = Jim_CmdPrivData(interp);
4591         return target_array2mem(interp, target, argc - 1, argv + 1);
4592 }
4593
4594 static int jim_target_tap_disabled(Jim_Interp *interp)
4595 {
4596         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4597         return JIM_ERR;
4598 }
4599
4600 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4601 {
4602         if (argc != 1) {
4603                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4604                 return JIM_ERR;
4605         }
4606         struct target *target = Jim_CmdPrivData(interp);
4607         if (!target->tap->enabled)
4608                 return jim_target_tap_disabled(interp);
4609
4610         int e = target->type->examine(target);
4611         if (e != ERROR_OK)
4612                 return JIM_ERR;
4613         return JIM_OK;
4614 }
4615
4616 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4617 {
4618         if (argc != 1) {
4619                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4620                 return JIM_ERR;
4621         }
4622         struct target *target = Jim_CmdPrivData(interp);
4623
4624         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4625                 return JIM_ERR;
4626
4627         return JIM_OK;
4628 }
4629
4630 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4631 {
4632         if (argc != 1) {
4633                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4634                 return JIM_ERR;
4635         }
4636         struct target *target = Jim_CmdPrivData(interp);
4637         if (!target->tap->enabled)
4638                 return jim_target_tap_disabled(interp);
4639
4640         int e;
4641         if (!(target_was_examined(target)))
4642                 e = ERROR_TARGET_NOT_EXAMINED;
4643         else
4644                 e = target->type->poll(target);
4645         if (e != ERROR_OK)
4646                 return JIM_ERR;
4647         return JIM_OK;
4648 }
4649
4650 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4651 {
4652         Jim_GetOptInfo goi;
4653         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4654
4655         if (goi.argc != 2) {
4656                 Jim_WrongNumArgs(interp, 0, argv,
4657                                 "([tT]|[fF]|assert|deassert) BOOL");
4658                 return JIM_ERR;
4659         }
4660
4661         Jim_Nvp *n;
4662         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4663         if (e != JIM_OK) {
4664                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4665                 return e;
4666         }
4667         /* the halt or not param */
4668         jim_wide a;
4669         e = Jim_GetOpt_Wide(&goi, &a);
4670         if (e != JIM_OK)
4671                 return e;
4672
4673         struct target *target = Jim_CmdPrivData(goi.interp);
4674         if (!target->tap->enabled)
4675                 return jim_target_tap_disabled(interp);
4676         if (!(target_was_examined(target))) {
4677                 LOG_ERROR("Target not examined yet");
4678                 return ERROR_TARGET_NOT_EXAMINED;
4679         }
4680         if (!target->type->assert_reset || !target->type->deassert_reset) {
4681                 Jim_SetResultFormatted(interp,
4682                                 "No target-specific reset for %s",
4683                                 target_name(target));
4684                 return JIM_ERR;
4685         }
4686         /* determine if we should halt or not. */
4687         target->reset_halt = !!a;
4688         /* When this happens - all workareas are invalid. */
4689         target_free_all_working_areas_restore(target, 0);
4690
4691         /* do the assert */
4692         if (n->value == NVP_ASSERT)
4693                 e = target->type->assert_reset(target);
4694         else
4695                 e = target->type->deassert_reset(target);
4696         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4697 }
4698
4699 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4700 {
4701         if (argc != 1) {
4702                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4703                 return JIM_ERR;
4704         }
4705         struct target *target = Jim_CmdPrivData(interp);
4706         if (!target->tap->enabled)
4707                 return jim_target_tap_disabled(interp);
4708         int e = target->type->halt(target);
4709         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4710 }
4711
4712 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4713 {
4714         Jim_GetOptInfo goi;
4715         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4716
4717         /* params:  <name>  statename timeoutmsecs */
4718         if (goi.argc != 2) {
4719                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4720                 Jim_SetResultFormatted(goi.interp,
4721                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4722                 return JIM_ERR;
4723         }
4724
4725         Jim_Nvp *n;
4726         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4727         if (e != JIM_OK) {
4728                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4729                 return e;
4730         }
4731         jim_wide a;
4732         e = Jim_GetOpt_Wide(&goi, &a);
4733         if (e != JIM_OK)
4734                 return e;
4735         struct target *target = Jim_CmdPrivData(interp);
4736         if (!target->tap->enabled)
4737                 return jim_target_tap_disabled(interp);
4738
4739         e = target_wait_state(target, n->value, a);
4740         if (e != ERROR_OK) {
4741                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4742                 Jim_SetResultFormatted(goi.interp,
4743                                 "target: %s wait %s fails (%#s) %s",
4744                                 target_name(target), n->name,
4745                                 eObj, target_strerror_safe(e));
4746                 Jim_FreeNewObj(interp, eObj);
4747                 return JIM_ERR;
4748         }
4749         return JIM_OK;
4750 }
4751 /* List for human, Events defined for this target.
4752  * scripts/programs should use 'name cget -event NAME'
4753  */
4754 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4755 {
4756         struct command_context *cmd_ctx = current_command_context(interp);
4757         assert(cmd_ctx != NULL);
4758
4759         struct target *target = Jim_CmdPrivData(interp);
4760         struct target_event_action *teap = target->event_action;
4761         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4762                                    target->target_number,
4763                                    target_name(target));
4764         command_print(cmd_ctx, "%-25s | Body", "Event");
4765         command_print(cmd_ctx, "------------------------- | "
4766                         "----------------------------------------");
4767         while (teap) {
4768                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4769                 command_print(cmd_ctx, "%-25s | %s",
4770                                 opt->name, Jim_GetString(teap->body, NULL));
4771                 teap = teap->next;
4772         }
4773         command_print(cmd_ctx, "***END***");
4774         return JIM_OK;
4775 }
4776 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4777 {
4778         if (argc != 1) {
4779                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4780                 return JIM_ERR;
4781         }
4782         struct target *target = Jim_CmdPrivData(interp);
4783         Jim_SetResultString(interp, target_state_name(target), -1);
4784         return JIM_OK;
4785 }
4786 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4787 {
4788         Jim_GetOptInfo goi;
4789         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4790         if (goi.argc != 1) {
4791                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4792                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4793                 return JIM_ERR;
4794         }
4795         Jim_Nvp *n;
4796         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4797         if (e != JIM_OK) {
4798                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4799                 return e;
4800         }
4801         struct target *target = Jim_CmdPrivData(interp);
4802         target_handle_event(target, n->value);
4803         return JIM_OK;
4804 }
4805
4806 static const struct command_registration target_instance_command_handlers[] = {
4807         {
4808                 .name = "configure",
4809                 .mode = COMMAND_CONFIG,
4810                 .jim_handler = jim_target_configure,
4811                 .help  = "configure a new target for use",
4812                 .usage = "[target_attribute ...]",
4813         },
4814         {
4815                 .name = "cget",
4816                 .mode = COMMAND_ANY,
4817                 .jim_handler = jim_target_configure,
4818                 .help  = "returns the specified target attribute",
4819                 .usage = "target_attribute",
4820         },
4821         {
4822                 .name = "mww",
4823                 .mode = COMMAND_EXEC,
4824                 .jim_handler = jim_target_mw,
4825                 .help = "Write 32-bit word(s) to target memory",
4826                 .usage = "address data [count]",
4827         },
4828         {
4829                 .name = "mwh",
4830                 .mode = COMMAND_EXEC,
4831                 .jim_handler = jim_target_mw,
4832                 .help = "Write 16-bit half-word(s) to target memory",
4833                 .usage = "address data [count]",
4834         },
4835         {
4836                 .name = "mwb",
4837                 .mode = COMMAND_EXEC,
4838                 .jim_handler = jim_target_mw,
4839                 .help = "Write byte(s) to target memory",
4840                 .usage = "address data [count]",
4841         },
4842         {
4843                 .name = "mdw",
4844                 .mode = COMMAND_EXEC,
4845                 .jim_handler = jim_target_md,
4846                 .help = "Display target memory as 32-bit words",
4847                 .usage = "address [count]",
4848         },
4849         {
4850                 .name = "mdh",
4851                 .mode = COMMAND_EXEC,
4852                 .jim_handler = jim_target_md,
4853                 .help = "Display target memory as 16-bit half-words",
4854                 .usage = "address [count]",
4855         },
4856         {
4857                 .name = "mdb",
4858                 .mode = COMMAND_EXEC,
4859                 .jim_handler = jim_target_md,
4860                 .help = "Display target memory as 8-bit bytes",
4861                 .usage = "address [count]",
4862         },
4863         {
4864                 .name = "array2mem",
4865                 .mode = COMMAND_EXEC,
4866                 .jim_handler = jim_target_array2mem,
4867                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4868                         "to target memory",
4869                 .usage = "arrayname bitwidth address count",
4870         },
4871         {
4872                 .name = "mem2array",
4873                 .mode = COMMAND_EXEC,
4874                 .jim_handler = jim_target_mem2array,
4875                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4876                         "from target memory",
4877                 .usage = "arrayname bitwidth address count",
4878         },
4879         {
4880                 .name = "eventlist",
4881                 .mode = COMMAND_EXEC,
4882                 .jim_handler = jim_target_event_list,
4883                 .help = "displays a table of events defined for this target",
4884         },
4885         {
4886                 .name = "curstate",
4887                 .mode = COMMAND_EXEC,
4888                 .jim_handler = jim_target_current_state,
4889                 .help = "displays the current state of this target",
4890         },
4891         {
4892                 .name = "arp_examine",
4893                 .mode = COMMAND_EXEC,
4894                 .jim_handler = jim_target_examine,
4895                 .help = "used internally for reset processing",
4896         },
4897         {
4898                 .name = "arp_halt_gdb",
4899                 .mode = COMMAND_EXEC,
4900                 .jim_handler = jim_target_halt_gdb,
4901                 .help = "used internally for reset processing to halt GDB",
4902         },
4903         {
4904                 .name = "arp_poll",
4905                 .mode = COMMAND_EXEC,
4906                 .jim_handler = jim_target_poll,
4907                 .help = "used internally for reset processing",
4908         },
4909         {
4910                 .name = "arp_reset",
4911                 .mode = COMMAND_EXEC,
4912                 .jim_handler = jim_target_reset,
4913                 .help = "used internally for reset processing",
4914         },
4915         {
4916                 .name = "arp_halt",
4917                 .mode = COMMAND_EXEC,
4918                 .jim_handler = jim_target_halt,
4919                 .help = "used internally for reset processing",
4920         },
4921         {
4922                 .name = "arp_waitstate",
4923                 .mode = COMMAND_EXEC,
4924                 .jim_handler = jim_target_wait_state,
4925                 .help = "used internally for reset processing",
4926         },
4927         {
4928                 .name = "invoke-event",
4929                 .mode = COMMAND_EXEC,
4930                 .jim_handler = jim_target_invoke_event,
4931                 .help = "invoke handler for specified event",
4932                 .usage = "event_name",
4933         },
4934         COMMAND_REGISTRATION_DONE
4935 };
4936
4937 static int target_create(Jim_GetOptInfo *goi)
4938 {
4939         Jim_Obj *new_cmd;
4940         Jim_Cmd *cmd;
4941         const char *cp;
4942         char *cp2;
4943         int e;
4944         int x;
4945         struct target *target;
4946         struct command_context *cmd_ctx;
4947
4948         cmd_ctx = current_command_context(goi->interp);
4949         assert(cmd_ctx != NULL);
4950
4951         if (goi->argc < 3) {
4952                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4953                 return JIM_ERR;
4954         }
4955
4956         /* COMMAND */
4957         Jim_GetOpt_Obj(goi, &new_cmd);
4958         /* does this command exist? */
4959         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4960         if (cmd) {
4961                 cp = Jim_GetString(new_cmd, NULL);
4962                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4963                 return JIM_ERR;
4964         }
4965
4966         /* TYPE */
4967         e = Jim_GetOpt_String(goi, &cp2, NULL);
4968         if (e != JIM_OK)
4969                 return e;
4970         cp = cp2;
4971         /* now does target type exist */
4972         for (x = 0 ; target_types[x] ; x++) {
4973                 if (0 == strcmp(cp, target_types[x]->name)) {
4974                         /* found */
4975                         break;
4976                 }
4977
4978                 /* check for deprecated name */
4979                 if (target_types[x]->deprecated_name) {
4980                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
4981                                 /* found */
4982                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
4983                                 break;
4984                         }
4985                 }
4986         }
4987         if (target_types[x] == NULL) {
4988                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4989                 for (x = 0 ; target_types[x] ; x++) {
4990                         if (target_types[x + 1]) {
4991                                 Jim_AppendStrings(goi->interp,
4992                                                                    Jim_GetResult(goi->interp),
4993                                                                    target_types[x]->name,
4994                                                                    ", ", NULL);
4995                         } else {
4996                                 Jim_AppendStrings(goi->interp,
4997                                                                    Jim_GetResult(goi->interp),
4998                                                                    " or ",
4999                                                                    target_types[x]->name, NULL);
5000                         }
5001                 }
5002                 return JIM_ERR;
5003         }
5004
5005         /* Create it */
5006         target = calloc(1, sizeof(struct target));
5007         /* set target number */
5008         target->target_number = new_target_number();
5009
5010         /* allocate memory for each unique target type */
5011         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
5012
5013         memcpy(target->type, target_types[x], sizeof(struct target_type));
5014
5015         /* will be set by "-endian" */
5016         target->endianness = TARGET_ENDIAN_UNKNOWN;
5017
5018         /* default to first core, override with -coreid */
5019         target->coreid = 0;
5020
5021         target->working_area        = 0x0;
5022         target->working_area_size   = 0x0;
5023         target->working_areas       = NULL;
5024         target->backup_working_area = 0;
5025
5026         target->state               = TARGET_UNKNOWN;
5027         target->debug_reason        = DBG_REASON_UNDEFINED;
5028         target->reg_cache           = NULL;
5029         target->breakpoints         = NULL;
5030         target->watchpoints         = NULL;
5031         target->next                = NULL;
5032         target->arch_info           = NULL;
5033
5034         target->display             = 1;
5035
5036         target->halt_issued                     = false;
5037
5038         /* initialize trace information */
5039         target->trace_info = malloc(sizeof(struct trace));
5040         target->trace_info->num_trace_points         = 0;
5041         target->trace_info->trace_points_size        = 0;
5042         target->trace_info->trace_points             = NULL;
5043         target->trace_info->trace_history_size       = 0;
5044         target->trace_info->trace_history            = NULL;
5045         target->trace_info->trace_history_pos        = 0;
5046         target->trace_info->trace_history_overflowed = 0;
5047
5048         target->dbgmsg          = NULL;
5049         target->dbg_msg_enabled = 0;
5050
5051         target->endianness = TARGET_ENDIAN_UNKNOWN;
5052
5053         target->rtos = NULL;
5054         target->rtos_auto_detect = false;
5055
5056         /* Do the rest as "configure" options */
5057         goi->isconfigure = 1;
5058         e = target_configure(goi, target);
5059
5060         if (target->tap == NULL) {
5061                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
5062                 e = JIM_ERR;
5063         }
5064
5065         if (e != JIM_OK) {
5066                 free(target->type);
5067                 free(target);
5068                 return e;
5069         }
5070
5071         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5072                 /* default endian to little if not specified */
5073                 target->endianness = TARGET_LITTLE_ENDIAN;
5074         }
5075
5076         /* incase variant is not set */
5077         if (!target->variant)
5078                 target->variant = strdup("");
5079
5080         cp = Jim_GetString(new_cmd, NULL);
5081         target->cmd_name = strdup(cp);
5082
5083         /* create the target specific commands */
5084         if (target->type->commands) {
5085                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5086                 if (ERROR_OK != e)
5087                         LOG_ERROR("unable to register '%s' commands", cp);
5088         }
5089         if (target->type->target_create)
5090                 (*(target->type->target_create))(target, goi->interp);
5091
5092         /* append to end of list */
5093         {
5094                 struct target **tpp;
5095                 tpp = &(all_targets);
5096                 while (*tpp)
5097                         tpp = &((*tpp)->next);
5098                 *tpp = target;
5099         }
5100
5101         /* now - create the new target name command */
5102         const struct command_registration target_subcommands[] = {
5103                 {
5104                         .chain = target_instance_command_handlers,
5105                 },
5106                 {
5107                         .chain = target->type->commands,
5108                 },
5109                 COMMAND_REGISTRATION_DONE
5110         };
5111         const struct command_registration target_commands[] = {
5112                 {
5113                         .name = cp,
5114                         .mode = COMMAND_ANY,
5115                         .help = "target command group",
5116                         .usage = "",
5117                         .chain = target_subcommands,
5118                 },
5119                 COMMAND_REGISTRATION_DONE
5120         };
5121         e = register_commands(cmd_ctx, NULL, target_commands);
5122         if (ERROR_OK != e)
5123                 return JIM_ERR;
5124
5125         struct command *c = command_find_in_context(cmd_ctx, cp);
5126         assert(c);
5127         command_set_handler_data(c, target);
5128
5129         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5130 }
5131
5132 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5133 {
5134         if (argc != 1) {
5135                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5136                 return JIM_ERR;
5137         }
5138         struct command_context *cmd_ctx = current_command_context(interp);
5139         assert(cmd_ctx != NULL);
5140
5141         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5142         return JIM_OK;
5143 }
5144
5145 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5146 {
5147         if (argc != 1) {
5148                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5149                 return JIM_ERR;
5150         }
5151         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5152         for (unsigned x = 0; NULL != target_types[x]; x++) {
5153                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5154                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5155         }
5156         return JIM_OK;
5157 }
5158
5159 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5160 {
5161         if (argc != 1) {
5162                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5163                 return JIM_ERR;
5164         }
5165         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5166         struct target *target = all_targets;
5167         while (target) {
5168                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5169                         Jim_NewStringObj(interp, target_name(target), -1));
5170                 target = target->next;
5171         }
5172         return JIM_OK;
5173 }
5174
5175 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5176 {
5177         int i;
5178         const char *targetname;
5179         int retval, len;
5180         struct target *target = (struct target *) NULL;
5181         struct target_list *head, *curr, *new;
5182         curr = (struct target_list *) NULL;
5183         head = (struct target_list *) NULL;
5184
5185         retval = 0;
5186         LOG_DEBUG("%d", argc);
5187         /* argv[1] = target to associate in smp
5188          * argv[2] = target to assoicate in smp
5189          * argv[3] ...
5190          */
5191
5192         for (i = 1; i < argc; i++) {
5193
5194                 targetname = Jim_GetString(argv[i], &len);
5195                 target = get_target(targetname);
5196                 LOG_DEBUG("%s ", targetname);
5197                 if (target) {
5198                         new = malloc(sizeof(struct target_list));
5199                         new->target = target;
5200                         new->next = (struct target_list *)NULL;
5201                         if (head == (struct target_list *)NULL) {
5202                                 head = new;
5203                                 curr = head;
5204                         } else {
5205                                 curr->next = new;
5206                                 curr = new;
5207                         }
5208                 }
5209         }
5210         /*  now parse the list of cpu and put the target in smp mode*/
5211         curr = head;
5212
5213         while (curr != (struct target_list *)NULL) {
5214                 target = curr->target;
5215                 target->smp = 1;
5216                 target->head = head;
5217                 curr = curr->next;
5218         }
5219
5220         if (target && target->rtos)
5221                 retval = rtos_smp_init(head->target);
5222
5223         return retval;
5224 }
5225
5226
5227 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5228 {
5229         Jim_GetOptInfo goi;
5230         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5231         if (goi.argc < 3) {
5232                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5233                         "<name> <target_type> [<target_options> ...]");
5234                 return JIM_ERR;
5235         }
5236         return target_create(&goi);
5237 }
5238
5239 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5240 {
5241         Jim_GetOptInfo goi;
5242         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5243
5244         /* It's OK to remove this mechanism sometime after August 2010 or so */
5245         LOG_WARNING("don't use numbers as target identifiers; use names");
5246         if (goi.argc != 1) {
5247                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5248                 return JIM_ERR;
5249         }
5250         jim_wide w;
5251         int e = Jim_GetOpt_Wide(&goi, &w);
5252         if (e != JIM_OK)
5253                 return JIM_ERR;
5254
5255         struct target *target;
5256         for (target = all_targets; NULL != target; target = target->next) {
5257                 if (target->target_number != w)
5258                         continue;
5259
5260                 Jim_SetResultString(goi.interp, target_name(target), -1);
5261                 return JIM_OK;
5262         }
5263         {
5264                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5265                 Jim_SetResultFormatted(goi.interp,
5266                         "Target: number %#s does not exist", wObj);
5267                 Jim_FreeNewObj(interp, wObj);
5268         }
5269         return JIM_ERR;
5270 }
5271
5272 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5273 {
5274         if (argc != 1) {
5275                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5276                 return JIM_ERR;
5277         }
5278         unsigned count = 0;
5279         struct target *target = all_targets;
5280         while (NULL != target) {
5281                 target = target->next;
5282                 count++;
5283         }
5284         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5285         return JIM_OK;
5286 }
5287
5288 static const struct command_registration target_subcommand_handlers[] = {
5289         {
5290                 .name = "init",
5291                 .mode = COMMAND_CONFIG,
5292                 .handler = handle_target_init_command,
5293                 .help = "initialize targets",
5294         },
5295         {
5296                 .name = "create",
5297                 /* REVISIT this should be COMMAND_CONFIG ... */
5298                 .mode = COMMAND_ANY,
5299                 .jim_handler = jim_target_create,
5300                 .usage = "name type '-chain-position' name [options ...]",
5301                 .help = "Creates and selects a new target",
5302         },
5303         {
5304                 .name = "current",
5305                 .mode = COMMAND_ANY,
5306                 .jim_handler = jim_target_current,
5307                 .help = "Returns the currently selected target",
5308         },
5309         {
5310                 .name = "types",
5311                 .mode = COMMAND_ANY,
5312                 .jim_handler = jim_target_types,
5313                 .help = "Returns the available target types as "
5314                                 "a list of strings",
5315         },
5316         {
5317                 .name = "names",
5318                 .mode = COMMAND_ANY,
5319                 .jim_handler = jim_target_names,
5320                 .help = "Returns the names of all targets as a list of strings",
5321         },
5322         {
5323                 .name = "number",
5324                 .mode = COMMAND_ANY,
5325                 .jim_handler = jim_target_number,
5326                 .usage = "number",
5327                 .help = "Returns the name of the numbered target "
5328                         "(DEPRECATED)",
5329         },
5330         {
5331                 .name = "count",
5332                 .mode = COMMAND_ANY,
5333                 .jim_handler = jim_target_count,
5334                 .help = "Returns the number of targets as an integer "
5335                         "(DEPRECATED)",
5336         },
5337         {
5338                 .name = "smp",
5339                 .mode = COMMAND_ANY,
5340                 .jim_handler = jim_target_smp,
5341                 .usage = "targetname1 targetname2 ...",
5342                 .help = "gather several target in a smp list"
5343         },
5344
5345         COMMAND_REGISTRATION_DONE
5346 };
5347
5348 struct FastLoad {
5349         uint32_t address;
5350         uint8_t *data;
5351         int length;
5352
5353 };
5354
5355 static int fastload_num;
5356 static struct FastLoad *fastload;
5357
5358 static void free_fastload(void)
5359 {
5360         if (fastload != NULL) {
5361                 int i;
5362                 for (i = 0; i < fastload_num; i++) {
5363                         if (fastload[i].data)
5364                                 free(fastload[i].data);
5365                 }
5366                 free(fastload);
5367                 fastload = NULL;
5368         }
5369 }
5370
5371 COMMAND_HANDLER(handle_fast_load_image_command)
5372 {
5373         uint8_t *buffer;
5374         size_t buf_cnt;
5375         uint32_t image_size;
5376         uint32_t min_address = 0;
5377         uint32_t max_address = 0xffffffff;
5378         int i;
5379
5380         struct image image;
5381
5382         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5383                         &image, &min_address, &max_address);
5384         if (ERROR_OK != retval)
5385                 return retval;
5386
5387         struct duration bench;
5388         duration_start(&bench);
5389
5390         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5391         if (retval != ERROR_OK)
5392                 return retval;
5393
5394         image_size = 0x0;
5395         retval = ERROR_OK;
5396         fastload_num = image.num_sections;
5397         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5398         if (fastload == NULL) {
5399                 command_print(CMD_CTX, "out of memory");
5400                 image_close(&image);
5401                 return ERROR_FAIL;
5402         }
5403         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5404         for (i = 0; i < image.num_sections; i++) {
5405                 buffer = malloc(image.sections[i].size);
5406                 if (buffer == NULL) {
5407                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5408                                                   (int)(image.sections[i].size));
5409                         retval = ERROR_FAIL;
5410                         break;
5411                 }
5412
5413                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5414                 if (retval != ERROR_OK) {
5415                         free(buffer);
5416                         break;
5417                 }
5418
5419                 uint32_t offset = 0;
5420                 uint32_t length = buf_cnt;
5421
5422                 /* DANGER!!! beware of unsigned comparision here!!! */
5423
5424                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5425                                 (image.sections[i].base_address < max_address)) {
5426                         if (image.sections[i].base_address < min_address) {
5427                                 /* clip addresses below */
5428                                 offset += min_address-image.sections[i].base_address;
5429                                 length -= offset;
5430                         }
5431
5432                         if (image.sections[i].base_address + buf_cnt > max_address)
5433                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5434
5435                         fastload[i].address = image.sections[i].base_address + offset;
5436                         fastload[i].data = malloc(length);
5437                         if (fastload[i].data == NULL) {
5438                                 free(buffer);
5439                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5440                                                           length);
5441                                 retval = ERROR_FAIL;
5442                                 break;
5443                         }
5444                         memcpy(fastload[i].data, buffer + offset, length);
5445                         fastload[i].length = length;
5446
5447                         image_size += length;
5448                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5449                                                   (unsigned int)length,
5450                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5451                 }
5452
5453                 free(buffer);
5454         }
5455
5456         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5457                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5458                                 "in %fs (%0.3f KiB/s)", image_size,
5459                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5460
5461                 command_print(CMD_CTX,
5462                                 "WARNING: image has not been loaded to target!"
5463                                 "You can issue a 'fast_load' to finish loading.");
5464         }
5465
5466         image_close(&image);
5467
5468         if (retval != ERROR_OK)
5469                 free_fastload();
5470
5471         return retval;
5472 }
5473
5474 COMMAND_HANDLER(handle_fast_load_command)
5475 {
5476         if (CMD_ARGC > 0)
5477                 return ERROR_COMMAND_SYNTAX_ERROR;
5478         if (fastload == NULL) {
5479                 LOG_ERROR("No image in memory");
5480                 return ERROR_FAIL;
5481         }
5482         int i;
5483         int ms = timeval_ms();
5484         int size = 0;
5485         int retval = ERROR_OK;
5486         for (i = 0; i < fastload_num; i++) {
5487                 struct target *target = get_current_target(CMD_CTX);
5488                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5489                                           (unsigned int)(fastload[i].address),
5490                                           (unsigned int)(fastload[i].length));
5491                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5492                 if (retval != ERROR_OK)
5493                         break;
5494                 size += fastload[i].length;
5495         }
5496         if (retval == ERROR_OK) {
5497                 int after = timeval_ms();
5498                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5499         }
5500         return retval;
5501 }
5502
5503 static const struct command_registration target_command_handlers[] = {
5504         {
5505                 .name = "targets",
5506                 .handler = handle_targets_command,
5507                 .mode = COMMAND_ANY,
5508                 .help = "change current default target (one parameter) "
5509                         "or prints table of all targets (no parameters)",
5510                 .usage = "[target]",
5511         },
5512         {
5513                 .name = "target",
5514                 .mode = COMMAND_CONFIG,
5515                 .help = "configure target",
5516
5517                 .chain = target_subcommand_handlers,
5518         },
5519         COMMAND_REGISTRATION_DONE
5520 };
5521
5522 int target_register_commands(struct command_context *cmd_ctx)
5523 {
5524         return register_commands(cmd_ctx, NULL, target_command_handlers);
5525 }
5526
5527 static bool target_reset_nag = true;
5528
5529 bool get_target_reset_nag(void)
5530 {
5531         return target_reset_nag;
5532 }
5533
5534 COMMAND_HANDLER(handle_target_reset_nag)
5535 {
5536         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5537                         &target_reset_nag, "Nag after each reset about options to improve "
5538                         "performance");
5539 }
5540
5541 COMMAND_HANDLER(handle_ps_command)
5542 {
5543         struct target *target = get_current_target(CMD_CTX);
5544         char *display;
5545         if (target->state != TARGET_HALTED) {
5546                 LOG_INFO("target not halted !!");
5547                 return ERROR_OK;
5548         }
5549
5550         if ((target->rtos) && (target->rtos->type)
5551                         && (target->rtos->type->ps_command)) {
5552                 display = target->rtos->type->ps_command(target);
5553                 command_print(CMD_CTX, "%s", display);
5554                 free(display);
5555                 return ERROR_OK;
5556         } else {
5557                 LOG_INFO("failed");
5558                 return ERROR_TARGET_FAILURE;
5559         }
5560 }
5561
5562 static const struct command_registration target_exec_command_handlers[] = {
5563         {
5564                 .name = "fast_load_image",
5565                 .handler = handle_fast_load_image_command,
5566                 .mode = COMMAND_ANY,
5567                 .help = "Load image into server memory for later use by "
5568                         "fast_load; primarily for profiling",
5569                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5570                         "[min_address [max_length]]",
5571         },
5572         {
5573                 .name = "fast_load",
5574                 .handler = handle_fast_load_command,
5575                 .mode = COMMAND_EXEC,
5576                 .help = "loads active fast load image to current target "
5577                         "- mainly for profiling purposes",
5578                 .usage = "",
5579         },
5580         {
5581                 .name = "profile",
5582                 .handler = handle_profile_command,
5583                 .mode = COMMAND_EXEC,
5584                 .usage = "seconds filename [start end]",
5585                 .help = "profiling samples the CPU PC",
5586         },
5587         /** @todo don't register virt2phys() unless target supports it */
5588         {
5589                 .name = "virt2phys",
5590                 .handler = handle_virt2phys_command,
5591                 .mode = COMMAND_ANY,
5592                 .help = "translate a virtual address into a physical address",
5593                 .usage = "virtual_address",
5594         },
5595         {
5596                 .name = "reg",
5597                 .handler = handle_reg_command,
5598                 .mode = COMMAND_EXEC,
5599                 .help = "display or set a register; with no arguments, "
5600                         "displays all registers and their values",
5601                 .usage = "[(register_name|register_number) [value]]",
5602         },
5603         {
5604                 .name = "poll",
5605                 .handler = handle_poll_command,
5606                 .mode = COMMAND_EXEC,
5607                 .help = "poll target state; or reconfigure background polling",
5608                 .usage = "['on'|'off']",
5609         },
5610         {
5611                 .name = "wait_halt",
5612                 .handler = handle_wait_halt_command,
5613                 .mode = COMMAND_EXEC,
5614                 .help = "wait up to the specified number of milliseconds "
5615                         "(default 5000) for a previously requested halt",
5616                 .usage = "[milliseconds]",
5617         },
5618         {
5619                 .name = "halt",
5620                 .handler = handle_halt_command,
5621                 .mode = COMMAND_EXEC,
5622                 .help = "request target to halt, then wait up to the specified"
5623                         "number of milliseconds (default 5000) for it to complete",
5624                 .usage = "[milliseconds]",
5625         },
5626         {
5627                 .name = "resume",
5628                 .handler = handle_resume_command,
5629                 .mode = COMMAND_EXEC,
5630                 .help = "resume target execution from current PC or address",
5631                 .usage = "[address]",
5632         },
5633         {
5634                 .name = "reset",
5635                 .handler = handle_reset_command,
5636                 .mode = COMMAND_EXEC,
5637                 .usage = "[run|halt|init]",
5638                 .help = "Reset all targets into the specified mode."
5639                         "Default reset mode is run, if not given.",
5640         },
5641         {
5642                 .name = "soft_reset_halt",
5643                 .handler = handle_soft_reset_halt_command,
5644                 .mode = COMMAND_EXEC,
5645                 .usage = "",
5646                 .help = "halt the target and do a soft reset",
5647         },
5648         {
5649                 .name = "step",
5650                 .handler = handle_step_command,
5651                 .mode = COMMAND_EXEC,
5652                 .help = "step one instruction from current PC or address",
5653                 .usage = "[address]",
5654         },
5655         {
5656                 .name = "mdw",
5657                 .handler = handle_md_command,
5658                 .mode = COMMAND_EXEC,
5659                 .help = "display memory words",
5660                 .usage = "['phys'] address [count]",
5661         },
5662         {
5663                 .name = "mdh",
5664                 .handler = handle_md_command,
5665                 .mode = COMMAND_EXEC,
5666                 .help = "display memory half-words",
5667                 .usage = "['phys'] address [count]",
5668         },
5669         {
5670                 .name = "mdb",
5671                 .handler = handle_md_command,
5672                 .mode = COMMAND_EXEC,
5673                 .help = "display memory bytes",
5674                 .usage = "['phys'] address [count]",
5675         },
5676         {
5677                 .name = "mww",
5678                 .handler = handle_mw_command,
5679                 .mode = COMMAND_EXEC,
5680                 .help = "write memory word",
5681                 .usage = "['phys'] address value [count]",
5682         },
5683         {
5684                 .name = "mwh",
5685                 .handler = handle_mw_command,
5686                 .mode = COMMAND_EXEC,
5687                 .help = "write memory half-word",
5688                 .usage = "['phys'] address value [count]",
5689         },
5690         {
5691                 .name = "mwb",
5692                 .handler = handle_mw_command,
5693                 .mode = COMMAND_EXEC,
5694                 .help = "write memory byte",
5695                 .usage = "['phys'] address value [count]",
5696         },
5697         {
5698                 .name = "bp",
5699                 .handler = handle_bp_command,
5700                 .mode = COMMAND_EXEC,
5701                 .help = "list or set hardware or software breakpoint",
5702                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5703         },
5704         {
5705                 .name = "rbp",
5706                 .handler = handle_rbp_command,
5707                 .mode = COMMAND_EXEC,
5708                 .help = "remove breakpoint",
5709                 .usage = "address",
5710         },
5711         {
5712                 .name = "wp",
5713                 .handler = handle_wp_command,
5714                 .mode = COMMAND_EXEC,
5715                 .help = "list (no params) or create watchpoints",
5716                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5717         },
5718         {
5719                 .name = "rwp",
5720                 .handler = handle_rwp_command,
5721                 .mode = COMMAND_EXEC,
5722                 .help = "remove watchpoint",
5723                 .usage = "address",
5724         },
5725         {
5726                 .name = "load_image",
5727                 .handler = handle_load_image_command,
5728                 .mode = COMMAND_EXEC,
5729                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5730                         "[min_address] [max_length]",
5731         },
5732         {
5733                 .name = "dump_image",
5734                 .handler = handle_dump_image_command,
5735                 .mode = COMMAND_EXEC,
5736                 .usage = "filename address size",
5737         },
5738         {
5739                 .name = "verify_image",
5740                 .handler = handle_verify_image_command,
5741                 .mode = COMMAND_EXEC,
5742                 .usage = "filename [offset [type]]",
5743         },
5744         {
5745                 .name = "test_image",
5746                 .handler = handle_test_image_command,
5747                 .mode = COMMAND_EXEC,
5748                 .usage = "filename [offset [type]]",
5749         },
5750         {
5751                 .name = "mem2array",
5752                 .mode = COMMAND_EXEC,
5753                 .jim_handler = jim_mem2array,
5754                 .help = "read 8/16/32 bit memory and return as a TCL array "
5755                         "for script processing",
5756                 .usage = "arrayname bitwidth address count",
5757         },
5758         {
5759                 .name = "array2mem",
5760                 .mode = COMMAND_EXEC,
5761                 .jim_handler = jim_array2mem,
5762                 .help = "convert a TCL array to memory locations "
5763                         "and write the 8/16/32 bit values",
5764                 .usage = "arrayname bitwidth address count",
5765         },
5766         {
5767                 .name = "reset_nag",
5768                 .handler = handle_target_reset_nag,
5769                 .mode = COMMAND_ANY,
5770                 .help = "Nag after each reset about options that could have been "
5771                                 "enabled to improve performance. ",
5772                 .usage = "['enable'|'disable']",
5773         },
5774         {
5775                 .name = "ps",
5776                 .handler = handle_ps_command,
5777                 .mode = COMMAND_EXEC,
5778                 .help = "list all tasks ",
5779                 .usage = " ",
5780         },
5781
5782         COMMAND_REGISTRATION_DONE
5783 };
5784 static int target_register_user_commands(struct command_context *cmd_ctx)
5785 {
5786         int retval = ERROR_OK;
5787         retval = target_request_register_commands(cmd_ctx);
5788         if (retval != ERROR_OK)
5789                 return retval;
5790
5791         retval = trace_register_commands(cmd_ctx);
5792         if (retval != ERROR_OK)
5793                 return retval;
5794
5795
5796         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5797 }