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

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   Copyright (C) 2011 Andreas Fritiofson                                 *
  24  *   andreas.fritiofson@gmail.com                                          *
  25  *                                                                         *
  26  *   This program is free software; you can redistribute it and/or modify  *
  27  *   it under the terms of the GNU General Public License as published by  *
  28  *   the Free Software Foundation; either version 2 of the License, or     *
  29  *   (at your option) any later version.                                   *
  30  *                                                                         *
  31  *   This program is distributed in the hope that it will be useful,       *
  32  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  33  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  34  *   GNU General Public License for more details.                          *
  35  *                                                                         *
  36  *   You should have received a copy of the GNU General Public License     *
  37  *   along with this program; if not, write to the                         *
  38  *   Free Software Foundation, Inc.,                                       *
  39  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, 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 static int target_read_buffer_default(struct target *target, uint32_t address,
  60                 uint32_t size, uint8_t *buffer);
  61 static int target_write_buffer_default(struct target *target, uint32_t address,
  62                 uint32_t size, const uint8_t *buffer);
  63 static int target_array2mem(Jim_Interp *interp, struct target *target,
  64                 int argc, Jim_Obj * const *argv);
  65 static int target_mem2array(Jim_Interp *interp, struct target *target,
  66                 int argc, Jim_Obj * const *argv);
  67 static int target_register_user_commands(struct command_context *cmd_ctx);
  68
  69 /* targets */
  70 extern struct target_type arm7tdmi_target;
  71 extern struct target_type arm720t_target;
  72 extern struct target_type arm9tdmi_target;
  73 extern struct target_type arm920t_target;
  74 extern struct target_type arm966e_target;
  75 extern struct target_type arm946e_target;
  76 extern struct target_type arm926ejs_target;
  77 extern struct target_type fa526_target;
  78 extern struct target_type feroceon_target;
  79 extern struct target_type dragonite_target;
  80 extern struct target_type xscale_target;
  81 extern struct target_type cortexm3_target;
  82 extern struct target_type cortexa8_target;
  83 extern struct target_type arm11_target;
  84 extern struct target_type mips_m4k_target;
  85 extern struct target_type avr_target;
  86 extern struct target_type dsp563xx_target;
  87 extern struct target_type dsp5680xx_target;
  88 extern struct target_type testee_target;
  89 extern struct target_type avr32_ap7k_target;
  90 extern struct target_type hla_target;
  91
  92 static struct target_type *target_types[] = {
  93         &arm7tdmi_target,
  94         &arm9tdmi_target,
  95         &arm920t_target,
  96         &arm720t_target,
  97         &arm966e_target,
  98         &arm946e_target,
  99         &arm926ejs_target,
 100         &fa526_target,
 101         &feroceon_target,
 102         &dragonite_target,
 103         &xscale_target,
 104         &cortexm3_target,
 105         &cortexa8_target,
 106         &arm11_target,
 107         &mips_m4k_target,
 108         &avr_target,
 109         &dsp563xx_target,
 110         &dsp5680xx_target,
 111         &testee_target,
 112         &avr32_ap7k_target,
 113         &hla_target,
 114         NULL,
 115 };
 116
 117 struct target *all_targets;
 118 static struct target_event_callback *target_event_callbacks;
 119 static struct target_timer_callback *target_timer_callbacks;
 120 static const int polling_interval = 100;
 121
 122 static const Jim_Nvp nvp_assert[] = {
 123         { .name = "assert", NVP_ASSERT },
 124         { .name = "deassert", NVP_DEASSERT },
 125         { .name = "T", NVP_ASSERT },
 126         { .name = "F", NVP_DEASSERT },
 127         { .name = "t", NVP_ASSERT },
 128         { .name = "f", NVP_DEASSERT },
 129         { .name = NULL, .value = -1 }
 130 };
 131
 132 static const Jim_Nvp nvp_error_target[] = {
 133         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 134         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 135         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 136         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 137         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 138         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 139         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 140         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 141         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 142         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 143         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 144         { .value = -1, .name = NULL }
 145 };
 146
 147 static const char *target_strerror_safe(int err)
 148 {
 149         const Jim_Nvp *n;
 150
 151         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 152         if (n->name == NULL)
 153                 return "unknown";
 154         else
 155                 return n->name;
 156 }
 157
 158 static const Jim_Nvp nvp_target_event[] = {
 159
 160         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 161         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 162         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 163         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 164         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 165
 166         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 167         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 168
 169         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 170         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 171         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 172         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 173         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 174         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 175         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 176         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 177         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 178         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 179         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 180         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 181
 182         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 183         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 184
 185         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 186         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 187
 188         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 189         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 190
 191         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 192         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 193
 194         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 195         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 196
 197         { .name = NULL, .value = -1 }
 198 };
 199
 200 static const Jim_Nvp nvp_target_state[] = {
 201         { .name = "unknown", .value = TARGET_UNKNOWN },
 202         { .name = "running", .value = TARGET_RUNNING },
 203         { .name = "halted",  .value = TARGET_HALTED },
 204         { .name = "reset",   .value = TARGET_RESET },
 205         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 206         { .name = NULL, .value = -1 },
 207 };
 208
 209 static const Jim_Nvp nvp_target_debug_reason[] = {
 210         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 211         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 212         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 213         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 214         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 215         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 216         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 217         { .name = NULL, .value = -1 },
 218 };
 219
 220 static const Jim_Nvp nvp_target_endian[] = {
 221         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 222         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 223         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 224         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 225         { .name = NULL,     .value = -1 },
 226 };
 227
 228 static const Jim_Nvp nvp_reset_modes[] = {
 229         { .name = "unknown", .value = RESET_UNKNOWN },
 230         { .name = "run"    , .value = RESET_RUN },
 231         { .name = "halt"   , .value = RESET_HALT },
 232         { .name = "init"   , .value = RESET_INIT },
 233         { .name = NULL     , .value = -1 },
 234 };
 235
 236 const char *debug_reason_name(struct target *t)
 237 {
 238         const char *cp;
 239
 240         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 241                         t->debug_reason)->name;
 242         if (!cp) {
 243                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 244                 cp = "(*BUG*unknown*BUG*)";
 245         }
 246         return cp;
 247 }
 248
 249 const char *target_state_name(struct target *t)
 250 {
 251         const char *cp;
 252         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 253         if (!cp) {
 254                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 255                 cp = "(*BUG*unknown*BUG*)";
 256         }
 257         return cp;
 258 }
 259
 260 /* determine the number of the new target */
 261 static int new_target_number(void)
 262 {
 263         struct target *t;
 264         int x;
 265
 266         /* number is 0 based */
 267         x = -1;
 268         t = all_targets;
 269         while (t) {
 270                 if (x < t->target_number)
 271                         x = t->target_number;
 272                 t = t->next;
 273         }
 274         return x + 1;
 275 }
 276
 277 /* read a uint32_t from a buffer in target memory endianness */
 278 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 279 {
 280         if (target->endianness == TARGET_LITTLE_ENDIAN)
 281                 return le_to_h_u32(buffer);
 282         else
 283                 return be_to_h_u32(buffer);
 284 }
 285
 286 /* read a uint24_t from a buffer in target memory endianness */
 287 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 288 {
 289         if (target->endianness == TARGET_LITTLE_ENDIAN)
 290                 return le_to_h_u24(buffer);
 291         else
 292                 return be_to_h_u24(buffer);
 293 }
 294
 295 /* read a uint16_t from a buffer in target memory endianness */
 296 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 297 {
 298         if (target->endianness == TARGET_LITTLE_ENDIAN)
 299                 return le_to_h_u16(buffer);
 300         else
 301                 return be_to_h_u16(buffer);
 302 }
 303
 304 /* read a uint8_t from a buffer in target memory endianness */
 305 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 306 {
 307         return *buffer & 0x0ff;
 308 }
 309
 310 /* write a uint32_t to a buffer in target memory endianness */
 311 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 312 {
 313         if (target->endianness == TARGET_LITTLE_ENDIAN)
 314                 h_u32_to_le(buffer, value);
 315         else
 316                 h_u32_to_be(buffer, value);
 317 }
 318
 319 /* write a uint24_t to a buffer in target memory endianness */
 320 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 321 {
 322         if (target->endianness == TARGET_LITTLE_ENDIAN)
 323                 h_u24_to_le(buffer, value);
 324         else
 325                 h_u24_to_be(buffer, value);
 326 }
 327
 328 /* write a uint16_t to a buffer in target memory endianness */
 329 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 330 {
 331         if (target->endianness == TARGET_LITTLE_ENDIAN)
 332                 h_u16_to_le(buffer, value);
 333         else
 334                 h_u16_to_be(buffer, value);
 335 }
 336
 337 /* write a uint8_t to a buffer in target memory endianness */
 338 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 339 {
 340         *buffer = value;
 341 }
 342
 343 /* write a uint32_t array to a buffer in target memory endianness */
 344 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 345 {
 346         uint32_t i;
 347         for (i = 0; i < count; i++)
 348                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 349 }
 350
 351 /* write a uint16_t array to a buffer in target memory endianness */
 352 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 353 {
 354         uint32_t i;
 355         for (i = 0; i < count; i++)
 356                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 357 }
 358
 359 /* write a uint32_t array to a buffer in target memory endianness */
 360 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, uint32_t *srcbuf)
 361 {
 362         uint32_t i;
 363         for (i = 0; i < count; i++)
 364                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 365 }
 366
 367 /* write a uint16_t array to a buffer in target memory endianness */
 368 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, uint16_t *srcbuf)
 369 {
 370         uint32_t i;
 371         for (i = 0; i < count; i++)
 372                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 373 }
 374
 375 /* return a pointer to a configured target; id is name or number */
 376 struct target *get_target(const char *id)
 377 {
 378         struct target *target;
 379
 380         /* try as tcltarget name */
 381         for (target = all_targets; target; target = target->next) {
 382                 if (target->cmd_name == NULL)
 383                         continue;
 384                 if (strcmp(id, target->cmd_name) == 0)
 385                         return target;
 386         }
 387
 388         /* It's OK to remove this fallback sometime after August 2010 or so */
 389
 390         /* no match, try as number */
 391         unsigned num;
 392         if (parse_uint(id, &num) != ERROR_OK)
 393                 return NULL;
 394
 395         for (target = all_targets; target; target = target->next) {
 396                 if (target->target_number == (int)num) {
 397                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 398                                         target->cmd_name, num);
 399                         return target;
 400                 }
 401         }
 402
 403         return NULL;
 404 }
 405
 406 /* returns a pointer to the n-th configured target */
 407 static struct target *get_target_by_num(int num)
 408 {
 409         struct target *target = all_targets;
 410
 411         while (target) {
 412                 if (target->target_number == num)
 413                         return target;
 414                 target = target->next;
 415         }
 416
 417         return NULL;
 418 }
 419
 420 struct target *get_current_target(struct command_context *cmd_ctx)
 421 {
 422         struct target *target = get_target_by_num(cmd_ctx->current_target);
 423
 424         if (target == NULL) {
 425                 LOG_ERROR("BUG: current_target out of bounds");
 426                 exit(-1);
 427         }
 428
 429         return target;
 430 }
 431
 432 int target_poll(struct target *target)
 433 {
 434         int retval;
 435
 436         /* We can't poll until after examine */
 437         if (!target_was_examined(target)) {
 438                 /* Fail silently lest we pollute the log */
 439                 return ERROR_FAIL;
 440         }
 441
 442         retval = target->type->poll(target);
 443         if (retval != ERROR_OK)
 444                 return retval;
 445
 446         if (target->halt_issued) {
 447                 if (target->state == TARGET_HALTED)
 448                         target->halt_issued = false;
 449                 else {
 450                         long long t = timeval_ms() - target->halt_issued_time;
 451                         if (t > 1000) {
 452                                 target->halt_issued = false;
 453                                 LOG_INFO("Halt timed out, wake up GDB.");
 454                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 455                         }
 456                 }
 457         }
 458
 459         return ERROR_OK;
 460 }
 461
 462 int target_halt(struct target *target)
 463 {
 464         int retval;
 465         /* We can't poll until after examine */
 466         if (!target_was_examined(target)) {
 467                 LOG_ERROR("Target not examined yet");
 468                 return ERROR_FAIL;
 469         }
 470
 471         retval = target->type->halt(target);
 472         if (retval != ERROR_OK)
 473                 return retval;
 474
 475         target->halt_issued = true;
 476         target->halt_issued_time = timeval_ms();
 477
 478         return ERROR_OK;
 479 }
 480
 481 /**
 482  * Make the target (re)start executing using its saved execution
 483  * context (possibly with some modifications).
 484  *
 485  * @param target Which target should start executing.
 486  * @param current True to use the target's saved program counter instead
 487  *      of the address parameter
 488  * @param address Optionally used as the program counter.
 489  * @param handle_breakpoints True iff breakpoints at the resumption PC
 490  *      should be skipped.  (For example, maybe execution was stopped by
 491  *      such a breakpoint, in which case it would be counterprodutive to
 492  *      let it re-trigger.
 493  * @param debug_execution False if all working areas allocated by OpenOCD
 494  *      should be released and/or restored to their original contents.
 495  *      (This would for example be true to run some downloaded "helper"
 496  *      algorithm code, which resides in one such working buffer and uses
 497  *      another for data storage.)
 498  *
 499  * @todo Resolve the ambiguity about what the "debug_execution" flag
 500  * signifies.  For example, Target implementations don't agree on how
 501  * it relates to invalidation of the register cache, or to whether
 502  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 503  * to enable breakpoints when running downloaded "helper" algorithms
 504  * (debug_execution true), since the breakpoints would be set to match
 505  * target firmware being debugged, not the helper algorithm.... and
 506  * enabling them could cause such helpers to malfunction (for example,
 507  * by overwriting data with a breakpoint instruction.  On the other
 508  * hand the infrastructure for running such helpers might use this
 509  * procedure but rely on hardware breakpoint to detect termination.)
 510  */
 511 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 512 {
 513         int retval;
 514
 515         /* We can't poll until after examine */
 516         if (!target_was_examined(target)) {
 517                 LOG_ERROR("Target not examined yet");
 518                 return ERROR_FAIL;
 519         }
 520
 521         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 522
 523         /* note that resume *must* be asynchronous. The CPU can halt before
 524          * we poll. The CPU can even halt at the current PC as a result of
 525          * a software breakpoint being inserted by (a bug?) the application.
 526          */
 527         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 528         if (retval != ERROR_OK)
 529                 return retval;
 530
 531         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 532
 533         return retval;
 534 }
 535
 536 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 537 {
 538         char buf[100];
 539         int retval;
 540         Jim_Nvp *n;
 541         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 542         if (n->name == NULL) {
 543                 LOG_ERROR("invalid reset mode");
 544                 return ERROR_FAIL;
 545         }
 546
 547         /* disable polling during reset to make reset event scripts
 548          * more predictable, i.e. dr/irscan & pathmove in events will
 549          * not have JTAG operations injected into the middle of a sequence.
 550          */
 551         bool save_poll = jtag_poll_get_enabled();
 552
 553         jtag_poll_set_enabled(false);
 554
 555         sprintf(buf, "ocd_process_reset %s", n->name);
 556         retval = Jim_Eval(cmd_ctx->interp, buf);
 557
 558         jtag_poll_set_enabled(save_poll);
 559
 560         if (retval != JIM_OK) {
 561                 Jim_MakeErrorMessage(cmd_ctx->interp);
 562                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 563                 return ERROR_FAIL;
 564         }
 565
 566         /* We want any events to be processed before the prompt */
 567         retval = target_call_timer_callbacks_now();
 568
 569         struct target *target;
 570         for (target = all_targets; target; target = target->next)
 571                 target->type->check_reset(target);
 572
 573         return retval;
 574 }
 575
 576 static int identity_virt2phys(struct target *target,
 577                 uint32_t virtual, uint32_t *physical)
 578 {
 579         *physical = virtual;
 580         return ERROR_OK;
 581 }
 582
 583 static int no_mmu(struct target *target, int *enabled)
 584 {
 585         *enabled = 0;
 586         return ERROR_OK;
 587 }
 588
 589 static int default_examine(struct target *target)
 590 {
 591         target_set_examined(target);
 592         return ERROR_OK;
 593 }
 594
 595 /* no check by default */
 596 static int default_check_reset(struct target *target)
 597 {
 598         return ERROR_OK;
 599 }
 600
 601 int target_examine_one(struct target *target)
 602 {
 603         return target->type->examine(target);
 604 }
 605
 606 static int jtag_enable_callback(enum jtag_event event, void *priv)
 607 {
 608         struct target *target = priv;
 609
 610         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 611                 return ERROR_OK;
 612
 613         jtag_unregister_event_callback(jtag_enable_callback, target);
 614
 615         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 616
 617         int retval = target_examine_one(target);
 618         if (retval != ERROR_OK)
 619                 return retval;
 620
 621         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 622
 623         return retval;
 624 }
 625
 626 /* Targets that correctly implement init + examine, i.e.
 627  * no communication with target during init:
 628  *
 629  * XScale
 630  */
 631 int target_examine(void)
 632 {
 633         int retval = ERROR_OK;
 634         struct target *target;
 635
 636         for (target = all_targets; target; target = target->next) {
 637                 /* defer examination, but don't skip it */
 638                 if (!target->tap->enabled) {
 639                         jtag_register_event_callback(jtag_enable_callback,
 640                                         target);
 641                         continue;
 642                 }
 643
 644                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 645
 646                 retval = target_examine_one(target);
 647                 if (retval != ERROR_OK)
 648                         return retval;
 649
 650                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 651         }
 652         return retval;
 653 }
 654
 655 const char *target_type_name(struct target *target)
 656 {
 657         return target->type->name;
 658 }
 659
 660 static int target_write_memory_imp(struct target *target, uint32_t address,
 661                 uint32_t size, uint32_t count, const uint8_t *buffer)
 662 {
 663         if (!target_was_examined(target)) {
 664                 LOG_ERROR("Target not examined yet");
 665                 return ERROR_FAIL;
 666         }
 667         return target->type->write_memory_imp(target, address, size, count, buffer);
 668 }
 669
 670 static int target_read_memory_imp(struct target *target, uint32_t address,
 671                 uint32_t size, uint32_t count, uint8_t *buffer)
 672 {
 673         if (!target_was_examined(target)) {
 674                 LOG_ERROR("Target not examined yet");
 675                 return ERROR_FAIL;
 676         }
 677         return target->type->read_memory_imp(target, address, size, count, buffer);
 678 }
 679
 680 static int target_soft_reset_halt_imp(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_imp) {
 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_imp(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         return target->type->read_memory(target, address, size, count, buffer);
 955 }
 956
 957 static int target_read_phys_memory(struct target *target,
 958                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 959 {
 960         return target->type->read_phys_memory(target, address, size, count, buffer);
 961 }
 962
 963 int target_write_memory(struct target *target,
 964                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 965 {
 966         return target->type->write_memory(target, address, size, count, buffer);
 967 }
 968
 969 static int target_write_phys_memory(struct target *target,
 970                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 971 {
 972         return target->type->write_phys_memory(target, address, size, count, buffer);
 973 }
 974
 975 int target_bulk_write_memory(struct target *target,
 976                 uint32_t address, uint32_t count, const uint8_t *buffer)
 977 {
 978         return target->type->bulk_write_memory(target, address, count, buffer);
 979 }
 980
 981 int target_add_breakpoint(struct target *target,
 982                 struct breakpoint *breakpoint)
 983 {
 984         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
 985                 LOG_WARNING("target %s is not halted", target->cmd_name);
 986                 return ERROR_TARGET_NOT_HALTED;
 987         }
 988         return target->type->add_breakpoint(target, breakpoint);
 989 }
 990
 991 int target_add_context_breakpoint(struct target *target,
 992                 struct breakpoint *breakpoint)
 993 {
 994         if (target->state != TARGET_HALTED) {
 995                 LOG_WARNING("target %s is not halted", target->cmd_name);
 996                 return ERROR_TARGET_NOT_HALTED;
 997         }
 998         return target->type->add_context_breakpoint(target, breakpoint);
 999 }
1000
1001 int target_add_hybrid_breakpoint(struct target *target,
1002                 struct breakpoint *breakpoint)
1003 {
1004         if (target->state != TARGET_HALTED) {
1005                 LOG_WARNING("target %s is not halted", target->cmd_name);
1006                 return ERROR_TARGET_NOT_HALTED;
1007         }
1008         return target->type->add_hybrid_breakpoint(target, breakpoint);
1009 }
1010
1011 int target_remove_breakpoint(struct target *target,
1012                 struct breakpoint *breakpoint)
1013 {
1014         return target->type->remove_breakpoint(target, breakpoint);
1015 }
1016
1017 int target_add_watchpoint(struct target *target,
1018                 struct watchpoint *watchpoint)
1019 {
1020         if (target->state != TARGET_HALTED) {
1021                 LOG_WARNING("target %s is not halted", target->cmd_name);
1022                 return ERROR_TARGET_NOT_HALTED;
1023         }
1024         return target->type->add_watchpoint(target, watchpoint);
1025 }
1026 int target_remove_watchpoint(struct target *target,
1027                 struct watchpoint *watchpoint)
1028 {
1029         return target->type->remove_watchpoint(target, watchpoint);
1030 }
1031
1032 int target_get_gdb_reg_list(struct target *target,
1033                 struct reg **reg_list[], int *reg_list_size)
1034 {
1035         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
1036 }
1037 int target_step(struct target *target,
1038                 int current, uint32_t address, int handle_breakpoints)
1039 {
1040         return target->type->step(target, current, address, handle_breakpoints);
1041 }
1042
1043 /**
1044  * Reset the @c examined flag for the given target.
1045  * Pure paranoia -- targets are zeroed on allocation.
1046  */
1047 static void target_reset_examined(struct target *target)
1048 {
1049         target->examined = false;
1050 }
1051
1052 static int err_read_phys_memory(struct target *target, uint32_t address,
1053                 uint32_t size, uint32_t count, uint8_t *buffer)
1054 {
1055         LOG_ERROR("Not implemented: %s", __func__);
1056         return ERROR_FAIL;
1057 }
1058
1059 static int err_write_phys_memory(struct target *target, uint32_t address,
1060                 uint32_t size, uint32_t count, const uint8_t *buffer)
1061 {
1062         LOG_ERROR("Not implemented: %s", __func__);
1063         return ERROR_FAIL;
1064 }
1065
1066 static int handle_target(void *priv);
1067
1068 static int target_init_one(struct command_context *cmd_ctx,
1069                 struct target *target)
1070 {
1071         target_reset_examined(target);
1072
1073         struct target_type *type = target->type;
1074         if (type->examine == NULL)
1075                 type->examine = default_examine;
1076
1077         if (type->check_reset == NULL)
1078                 type->check_reset = default_check_reset;
1079
1080         assert(type->init_target != NULL);
1081
1082         int retval = type->init_target(cmd_ctx, target);
1083         if (ERROR_OK != retval) {
1084                 LOG_ERROR("target '%s' init failed", target_name(target));
1085                 return retval;
1086         }
1087
1088         /**
1089          * @todo get rid of those *memory_imp() methods, now that all
1090          * callers are using target_*_memory() accessors ... and make
1091          * sure the "physical" paths handle the same issues.
1092          */
1093         /* a non-invasive way(in terms of patches) to add some code that
1094          * runs before the type->write/read_memory implementation
1095          */
1096         type->write_memory_imp = target->type->write_memory;
1097         type->write_memory = target_write_memory_imp;
1098
1099         type->read_memory_imp = target->type->read_memory;
1100         type->read_memory = target_read_memory_imp;
1101
1102         type->soft_reset_halt_imp = target->type->soft_reset_halt;
1103         type->soft_reset_halt = target_soft_reset_halt_imp;
1104
1105         /* Sanity-check MMU support ... stub in what we must, to help
1106          * implement it in stages, but warn if we need to do so.
1107          */
1108         if (type->mmu) {
1109                 if (type->write_phys_memory == NULL) {
1110                         LOG_ERROR("type '%s' is missing write_phys_memory",
1111                                         type->name);
1112                         type->write_phys_memory = err_write_phys_memory;
1113                 }
1114                 if (type->read_phys_memory == NULL) {
1115                         LOG_ERROR("type '%s' is missing read_phys_memory",
1116                                         type->name);
1117                         type->read_phys_memory = err_read_phys_memory;
1118                 }
1119                 if (type->virt2phys == NULL) {
1120                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1121                         type->virt2phys = identity_virt2phys;
1122                 }
1123         } else {
1124                 /* Make sure no-MMU targets all behave the same:  make no
1125                  * distinction between physical and virtual addresses, and
1126                  * ensure that virt2phys() is always an identity mapping.
1127                  */
1128                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1129                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1130
1131                 type->mmu = no_mmu;
1132                 type->write_phys_memory = type->write_memory;
1133                 type->read_phys_memory = type->read_memory;
1134                 type->virt2phys = identity_virt2phys;
1135         }
1136
1137         if (target->type->read_buffer == NULL)
1138                 target->type->read_buffer = target_read_buffer_default;
1139
1140         if (target->type->write_buffer == NULL)
1141                 target->type->write_buffer = target_write_buffer_default;
1142
1143         return ERROR_OK;
1144 }
1145
1146 static int target_init(struct command_context *cmd_ctx)
1147 {
1148         struct target *target;
1149         int retval;
1150
1151         for (target = all_targets; target; target = target->next) {
1152                 retval = target_init_one(cmd_ctx, target);
1153                 if (ERROR_OK != retval)
1154                         return retval;
1155         }
1156
1157         if (!all_targets)
1158                 return ERROR_OK;
1159
1160         retval = target_register_user_commands(cmd_ctx);
1161         if (ERROR_OK != retval)
1162                 return retval;
1163
1164         retval = target_register_timer_callback(&handle_target,
1165                         polling_interval, 1, cmd_ctx->interp);
1166         if (ERROR_OK != retval)
1167                 return retval;
1168
1169         return ERROR_OK;
1170 }
1171
1172 COMMAND_HANDLER(handle_target_init_command)
1173 {
1174         int retval;
1175
1176         if (CMD_ARGC != 0)
1177                 return ERROR_COMMAND_SYNTAX_ERROR;
1178
1179         static bool target_initialized;
1180         if (target_initialized) {
1181                 LOG_INFO("'target init' has already been called");
1182                 return ERROR_OK;
1183         }
1184         target_initialized = true;
1185
1186         retval = command_run_line(CMD_CTX, "init_targets");
1187         if (ERROR_OK != retval)
1188                 return retval;
1189
1190         retval = command_run_line(CMD_CTX, "init_board");
1191         if (ERROR_OK != retval)
1192                 return retval;
1193
1194         LOG_DEBUG("Initializing targets...");
1195         return target_init(CMD_CTX);
1196 }
1197
1198 int target_register_event_callback(int (*callback)(struct target *target,
1199                 enum target_event event, void *priv), void *priv)
1200 {
1201         struct target_event_callback **callbacks_p = &target_event_callbacks;
1202
1203         if (callback == NULL)
1204                 return ERROR_COMMAND_SYNTAX_ERROR;
1205
1206         if (*callbacks_p) {
1207                 while ((*callbacks_p)->next)
1208                         callbacks_p = &((*callbacks_p)->next);
1209                 callbacks_p = &((*callbacks_p)->next);
1210         }
1211
1212         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1213         (*callbacks_p)->callback = callback;
1214         (*callbacks_p)->priv = priv;
1215         (*callbacks_p)->next = NULL;
1216
1217         return ERROR_OK;
1218 }
1219
1220 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1221 {
1222         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1223         struct timeval now;
1224
1225         if (callback == NULL)
1226                 return ERROR_COMMAND_SYNTAX_ERROR;
1227
1228         if (*callbacks_p) {
1229                 while ((*callbacks_p)->next)
1230                         callbacks_p = &((*callbacks_p)->next);
1231                 callbacks_p = &((*callbacks_p)->next);
1232         }
1233
1234         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1235         (*callbacks_p)->callback = callback;
1236         (*callbacks_p)->periodic = periodic;
1237         (*callbacks_p)->time_ms = time_ms;
1238
1239         gettimeofday(&now, NULL);
1240         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1241         time_ms -= (time_ms % 1000);
1242         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1243         if ((*callbacks_p)->when.tv_usec > 1000000) {
1244                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1245                 (*callbacks_p)->when.tv_sec += 1;
1246         }
1247
1248         (*callbacks_p)->priv = priv;
1249         (*callbacks_p)->next = NULL;
1250
1251         return ERROR_OK;
1252 }
1253
1254 int target_unregister_event_callback(int (*callback)(struct target *target,
1255                 enum target_event event, void *priv), void *priv)
1256 {
1257         struct target_event_callback **p = &target_event_callbacks;
1258         struct target_event_callback *c = target_event_callbacks;
1259
1260         if (callback == NULL)
1261                 return ERROR_COMMAND_SYNTAX_ERROR;
1262
1263         while (c) {
1264                 struct target_event_callback *next = c->next;
1265                 if ((c->callback == callback) && (c->priv == priv)) {
1266                         *p = next;
1267                         free(c);
1268                         return ERROR_OK;
1269                 } else
1270                         p = &(c->next);
1271                 c = next;
1272         }
1273
1274         return ERROR_OK;
1275 }
1276
1277 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1278 {
1279         struct target_timer_callback **p = &target_timer_callbacks;
1280         struct target_timer_callback *c = target_timer_callbacks;
1281
1282         if (callback == NULL)
1283                 return ERROR_COMMAND_SYNTAX_ERROR;
1284
1285         while (c) {
1286                 struct target_timer_callback *next = c->next;
1287                 if ((c->callback == callback) && (c->priv == priv)) {
1288                         *p = next;
1289                         free(c);
1290                         return ERROR_OK;
1291                 } else
1292                         p = &(c->next);
1293                 c = next;
1294         }
1295
1296         return ERROR_OK;
1297 }
1298
1299 int target_call_event_callbacks(struct target *target, enum target_event event)
1300 {
1301         struct target_event_callback *callback = target_event_callbacks;
1302         struct target_event_callback *next_callback;
1303
1304         if (event == TARGET_EVENT_HALTED) {
1305                 /* execute early halted first */
1306                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1307         }
1308
1309         LOG_DEBUG("target event %i (%s)", event,
1310                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1311
1312         target_handle_event(target, event);
1313
1314         while (callback) {
1315                 next_callback = callback->next;
1316                 callback->callback(target, event, callback->priv);
1317                 callback = next_callback;
1318         }
1319
1320         return ERROR_OK;
1321 }
1322
1323 static int target_timer_callback_periodic_restart(
1324                 struct target_timer_callback *cb, struct timeval *now)
1325 {
1326         int time_ms = cb->time_ms;
1327         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1328         time_ms -= (time_ms % 1000);
1329         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1330         if (cb->when.tv_usec > 1000000) {
1331                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1332                 cb->when.tv_sec += 1;
1333         }
1334         return ERROR_OK;
1335 }
1336
1337 static int target_call_timer_callback(struct target_timer_callback *cb,
1338                 struct timeval *now)
1339 {
1340         cb->callback(cb->priv);
1341
1342         if (cb->periodic)
1343                 return target_timer_callback_periodic_restart(cb, now);
1344
1345         return target_unregister_timer_callback(cb->callback, cb->priv);
1346 }
1347
1348 static int target_call_timer_callbacks_check_time(int checktime)
1349 {
1350         keep_alive();
1351
1352         struct timeval now;
1353         gettimeofday(&now, NULL);
1354
1355         struct target_timer_callback *callback = target_timer_callbacks;
1356         while (callback) {
1357                 /* cleaning up may unregister and free this callback */
1358                 struct target_timer_callback *next_callback = callback->next;
1359
1360                 bool call_it = callback->callback &&
1361                         ((!checktime && callback->periodic) ||
1362                           now.tv_sec > callback->when.tv_sec ||
1363                          (now.tv_sec == callback->when.tv_sec &&
1364                           now.tv_usec >= callback->when.tv_usec));
1365
1366                 if (call_it) {
1367                         int retval = target_call_timer_callback(callback, &now);
1368                         if (retval != ERROR_OK)
1369                                 return retval;
1370                 }
1371
1372                 callback = next_callback;
1373         }
1374
1375         return ERROR_OK;
1376 }
1377
1378 int target_call_timer_callbacks(void)
1379 {
1380         return target_call_timer_callbacks_check_time(1);
1381 }
1382
1383 /* invoke periodic callbacks immediately */
1384 int target_call_timer_callbacks_now(void)
1385 {
1386         return target_call_timer_callbacks_check_time(0);
1387 }
1388
1389 /* Prints the working area layout for debug purposes */
1390 static void print_wa_layout(struct target *target)
1391 {
1392         struct working_area *c = target->working_areas;
1393
1394         while (c) {
1395                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1396                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1397                         c->address, c->address + c->size - 1, c->size);
1398                 c = c->next;
1399         }
1400 }
1401
1402 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1403 static void target_split_working_area(struct working_area *area, uint32_t size)
1404 {
1405         assert(area->free); /* Shouldn't split an allocated area */
1406         assert(size <= area->size); /* Caller should guarantee this */
1407
1408         /* Split only if not already the right size */
1409         if (size < area->size) {
1410                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1411
1412                 if (new_wa == NULL)
1413                         return;
1414
1415                 new_wa->next = area->next;
1416                 new_wa->size = area->size - size;
1417                 new_wa->address = area->address + size;
1418                 new_wa->backup = NULL;
1419                 new_wa->user = NULL;
1420                 new_wa->free = true;
1421
1422                 area->next = new_wa;
1423                 area->size = size;
1424
1425                 /* If backup memory was allocated to this area, it has the wrong size
1426                  * now so free it and it will be reallocated if/when needed */
1427                 if (area->backup) {
1428                         free(area->backup);
1429                         area->backup = NULL;
1430                 }
1431         }
1432 }
1433
1434 /* Merge all adjacent free areas into one */
1435 static void target_merge_working_areas(struct target *target)
1436 {
1437         struct working_area *c = target->working_areas;
1438
1439         while (c && c->next) {
1440                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1441
1442                 /* Find two adjacent free areas */
1443                 if (c->free && c->next->free) {
1444                         /* Merge the last into the first */
1445                         c->size += c->next->size;
1446
1447                         /* Remove the last */
1448                         struct working_area *to_be_freed = c->next;
1449                         c->next = c->next->next;
1450                         if (to_be_freed->backup)
1451                                 free(to_be_freed->backup);
1452                         free(to_be_freed);
1453
1454                         /* If backup memory was allocated to the remaining area, it's has
1455                          * the wrong size now */
1456                         if (c->backup) {
1457                                 free(c->backup);
1458                                 c->backup = NULL;
1459                         }
1460                 } else {
1461                         c = c->next;
1462                 }
1463         }
1464 }
1465
1466 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1467 {
1468         /* Reevaluate working area address based on MMU state*/
1469         if (target->working_areas == NULL) {
1470                 int retval;
1471                 int enabled;
1472
1473                 retval = target->type->mmu(target, &enabled);
1474                 if (retval != ERROR_OK)
1475                         return retval;
1476
1477                 if (!enabled) {
1478                         if (target->working_area_phys_spec) {
1479                                 LOG_DEBUG("MMU disabled, using physical "
1480                                         "address for working memory 0x%08"PRIx32,
1481                                         target->working_area_phys);
1482                                 target->working_area = target->working_area_phys;
1483                         } else {
1484                                 LOG_ERROR("No working memory available. "
1485                                         "Specify -work-area-phys to target.");
1486                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1487                         }
1488                 } else {
1489                         if (target->working_area_virt_spec) {
1490                                 LOG_DEBUG("MMU enabled, using virtual "
1491                                         "address for working memory 0x%08"PRIx32,
1492                                         target->working_area_virt);
1493                                 target->working_area = target->working_area_virt;
1494                         } else {
1495                                 LOG_ERROR("No working memory available. "
1496                                         "Specify -work-area-virt to target.");
1497                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1498                         }
1499                 }
1500
1501                 /* Set up initial working area on first call */
1502                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1503                 if (new_wa) {
1504                         new_wa->next = NULL;
1505                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1506                         new_wa->address = target->working_area;
1507                         new_wa->backup = NULL;
1508                         new_wa->user = NULL;
1509                         new_wa->free = true;
1510                 }
1511
1512                 target->working_areas = new_wa;
1513         }
1514
1515         /* only allocate multiples of 4 byte */
1516         if (size % 4)
1517                 size = (size + 3) & (~3UL);
1518
1519         struct working_area *c = target->working_areas;
1520
1521         /* Find the first large enough working area */
1522         while (c) {
1523                 if (c->free && c->size >= size)
1524                         break;
1525                 c = c->next;
1526         }
1527
1528         if (c == NULL)
1529                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1530
1531         /* Split the working area into the requested size */
1532         target_split_working_area(c, size);
1533
1534         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1535
1536         if (target->backup_working_area) {
1537                 if (c->backup == NULL) {
1538                         c->backup = malloc(c->size);
1539                         if (c->backup == NULL)
1540                                 return ERROR_FAIL;
1541                 }
1542
1543                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1544                 if (retval != ERROR_OK)
1545                         return retval;
1546         }
1547
1548         /* mark as used, and return the new (reused) area */
1549         c->free = false;
1550         *area = c;
1551
1552         /* user pointer */
1553         c->user = area;
1554
1555         print_wa_layout(target);
1556
1557         return ERROR_OK;
1558 }
1559
1560 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1561 {
1562         int retval;
1563
1564         retval = target_alloc_working_area_try(target, size, area);
1565         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1566                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1567         return retval;
1568
1569 }
1570
1571 static int target_restore_working_area(struct target *target, struct working_area *area)
1572 {
1573         int retval = ERROR_OK;
1574
1575         if (target->backup_working_area && area->backup != NULL) {
1576                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1577                 if (retval != ERROR_OK)
1578                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1579                                         area->size, area->address);
1580         }
1581
1582         return retval;
1583 }
1584
1585 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1586 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1587 {
1588         int retval = ERROR_OK;
1589
1590         if (area->free)
1591                 return retval;
1592
1593         if (restore) {
1594                 retval = target_restore_working_area(target, area);
1595                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1596                 if (retval != ERROR_OK)
1597                         return retval;
1598         }
1599
1600         area->free = true;
1601
1602         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1603                         area->size, area->address);
1604
1605         /* mark user pointer invalid */
1606         /* TODO: Is this really safe? It points to some previous caller's memory.
1607          * How could we know that the area pointer is still in that place and not
1608          * some other vital data? What's the purpose of this, anyway? */
1609         *area->user = NULL;
1610         area->user = NULL;
1611
1612         target_merge_working_areas(target);
1613
1614         print_wa_layout(target);
1615
1616         return retval;
1617 }
1618
1619 int target_free_working_area(struct target *target, struct working_area *area)
1620 {
1621         return target_free_working_area_restore(target, area, 1);
1622 }
1623
1624 /* free resources and restore memory, if restoring memory fails,
1625  * free up resources anyway
1626  */
1627 static void target_free_all_working_areas_restore(struct target *target, int restore)
1628 {
1629         struct working_area *c = target->working_areas;
1630
1631         LOG_DEBUG("freeing all working areas");
1632
1633         /* Loop through all areas, restoring the allocated ones and marking them as free */
1634         while (c) {
1635                 if (!c->free) {
1636                         if (restore)
1637                                 target_restore_working_area(target, c);
1638                         c->free = true;
1639                         *c->user = NULL; /* Same as above */
1640                         c->user = NULL;
1641                 }
1642                 c = c->next;
1643         }
1644
1645         /* Run a merge pass to combine all areas into one */
1646         target_merge_working_areas(target);
1647
1648         print_wa_layout(target);
1649 }
1650
1651 void target_free_all_working_areas(struct target *target)
1652 {
1653         target_free_all_working_areas_restore(target, 1);
1654 }
1655
1656 /* Find the largest number of bytes that can be allocated */
1657 uint32_t target_get_working_area_avail(struct target *target)
1658 {
1659         struct working_area *c = target->working_areas;
1660         uint32_t max_size = 0;
1661
1662         if (c == NULL)
1663                 return target->working_area_size;
1664
1665         while (c) {
1666                 if (c->free && max_size < c->size)
1667                         max_size = c->size;
1668
1669                 c = c->next;
1670         }
1671
1672         return max_size;
1673 }
1674
1675 int target_arch_state(struct target *target)
1676 {
1677         int retval;
1678         if (target == NULL) {
1679                 LOG_USER("No target has been configured");
1680                 return ERROR_OK;
1681         }
1682
1683         LOG_USER("target state: %s", target_state_name(target));
1684
1685         if (target->state != TARGET_HALTED)
1686                 return ERROR_OK;
1687
1688         retval = target->type->arch_state(target);
1689         return retval;
1690 }
1691
1692 /* Single aligned words are guaranteed to use 16 or 32 bit access
1693  * mode respectively, otherwise data is handled as quickly as
1694  * possible
1695  */
1696 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1697 {
1698         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1699                         (int)size, (unsigned)address);
1700
1701         if (!target_was_examined(target)) {
1702                 LOG_ERROR("Target not examined yet");
1703                 return ERROR_FAIL;
1704         }
1705
1706         if (size == 0)
1707                 return ERROR_OK;
1708
1709         if ((address + size - 1) < address) {
1710                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1711                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1712                                   (unsigned)address,
1713                                   (unsigned)size);
1714                 return ERROR_FAIL;
1715         }
1716
1717         return target->type->write_buffer(target, address, size, buffer);
1718 }
1719
1720 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1721 {
1722         int retval = ERROR_OK;
1723
1724         if (((address % 2) == 0) && (size == 2))
1725                 return target_write_memory(target, address, 2, 1, buffer);
1726
1727         /* handle unaligned head bytes */
1728         if (address % 4) {
1729                 uint32_t unaligned = 4 - (address % 4);
1730
1731                 if (unaligned > size)
1732                         unaligned = size;
1733
1734                 retval = target_write_memory(target, address, 1, unaligned, buffer);
1735                 if (retval != ERROR_OK)
1736                         return retval;
1737
1738                 buffer += unaligned;
1739                 address += unaligned;
1740                 size -= unaligned;
1741         }
1742
1743         /* handle aligned words */
1744         if (size >= 4) {
1745                 int aligned = size - (size % 4);
1746
1747                 /* use bulk writes above a certain limit. This may have to be changed */
1748                 if (aligned > 128) {
1749                         retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer);
1750                         if (retval != ERROR_OK)
1751                                 return retval;
1752                 } else {
1753                         retval = target_write_memory(target, address, 4, aligned / 4, buffer);
1754                         if (retval != ERROR_OK)
1755                                 return retval;
1756                 }
1757
1758                 buffer += aligned;
1759                 address += aligned;
1760                 size -= aligned;
1761         }
1762
1763         /* handle tail writes of less than 4 bytes */
1764         if (size > 0) {
1765                 retval = target_write_memory(target, address, 1, size, buffer);
1766                 if (retval != ERROR_OK)
1767                         return retval;
1768         }
1769
1770         return retval;
1771 }
1772
1773 /* Single aligned words are guaranteed to use 16 or 32 bit access
1774  * mode respectively, otherwise data is handled as quickly as
1775  * possible
1776  */
1777 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1778 {
1779         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1780                           (int)size, (unsigned)address);
1781
1782         if (!target_was_examined(target)) {
1783                 LOG_ERROR("Target not examined yet");
1784                 return ERROR_FAIL;
1785         }
1786
1787         if (size == 0)
1788                 return ERROR_OK;
1789
1790         if ((address + size - 1) < address) {
1791                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1792                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1793                                   address,
1794                                   size);
1795                 return ERROR_FAIL;
1796         }
1797
1798         return target->type->read_buffer(target, address, size, buffer);
1799 }
1800
1801 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1802 {
1803         int retval = ERROR_OK;
1804
1805         if (((address % 2) == 0) && (size == 2))
1806                 return target_read_memory(target, address, 2, 1, buffer);
1807
1808         /* handle unaligned head bytes */
1809         if (address % 4) {
1810                 uint32_t unaligned = 4 - (address % 4);
1811
1812                 if (unaligned > size)
1813                         unaligned = size;
1814
1815                 retval = target_read_memory(target, address, 1, unaligned, buffer);
1816                 if (retval != ERROR_OK)
1817                         return retval;
1818
1819                 buffer += unaligned;
1820                 address += unaligned;
1821                 size -= unaligned;
1822         }
1823
1824         /* handle aligned words */
1825         if (size >= 4) {
1826                 int aligned = size - (size % 4);
1827
1828                 retval = target_read_memory(target, address, 4, aligned / 4, buffer);
1829                 if (retval != ERROR_OK)
1830                         return retval;
1831
1832                 buffer += aligned;
1833                 address += aligned;
1834                 size -= aligned;
1835         }
1836
1837         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1838         if (size        >= 2) {
1839                 int aligned = size - (size % 2);
1840                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1841                 if (retval != ERROR_OK)
1842                         return retval;
1843
1844                 buffer += aligned;
1845                 address += aligned;
1846                 size -= aligned;
1847         }
1848         /* handle tail writes of less than 4 bytes */
1849         if (size > 0) {
1850                 retval = target_read_memory(target, address, 1, size, buffer);
1851                 if (retval != ERROR_OK)
1852                         return retval;
1853         }
1854
1855         return ERROR_OK;
1856 }
1857
1858 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1859 {
1860         uint8_t *buffer;
1861         int retval;
1862         uint32_t i;
1863         uint32_t checksum = 0;
1864         if (!target_was_examined(target)) {
1865                 LOG_ERROR("Target not examined yet");
1866                 return ERROR_FAIL;
1867         }
1868
1869         retval = target->type->checksum_memory(target, address, size, &checksum);
1870         if (retval != ERROR_OK) {
1871                 buffer = malloc(size);
1872                 if (buffer == NULL) {
1873                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1874                         return ERROR_COMMAND_SYNTAX_ERROR;
1875                 }
1876                 retval = target_read_buffer(target, address, size, buffer);
1877                 if (retval != ERROR_OK) {
1878                         free(buffer);
1879                         return retval;
1880                 }
1881
1882                 /* convert to target endianness */
1883                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
1884                         uint32_t target_data;
1885                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1886                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1887                 }
1888
1889                 retval = image_calculate_checksum(buffer, size, &checksum);
1890                 free(buffer);
1891         }
1892
1893         *crc = checksum;
1894
1895         return retval;
1896 }
1897
1898 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1899 {
1900         int retval;
1901         if (!target_was_examined(target)) {
1902                 LOG_ERROR("Target not examined yet");
1903                 return ERROR_FAIL;
1904         }
1905
1906         if (target->type->blank_check_memory == 0)
1907                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1908
1909         retval = target->type->blank_check_memory(target, address, size, blank);
1910
1911         return retval;
1912 }
1913
1914 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1915 {
1916         uint8_t value_buf[4];
1917         if (!target_was_examined(target)) {
1918                 LOG_ERROR("Target not examined yet");
1919                 return ERROR_FAIL;
1920         }
1921
1922         int retval = target_read_memory(target, address, 4, 1, value_buf);
1923
1924         if (retval == ERROR_OK) {
1925                 *value = target_buffer_get_u32(target, value_buf);
1926                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1927                                   address,
1928                                   *value);
1929         } else {
1930                 *value = 0x0;
1931                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1932                                   address);
1933         }
1934
1935         return retval;
1936 }
1937
1938 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1939 {
1940         uint8_t value_buf[2];
1941         if (!target_was_examined(target)) {
1942                 LOG_ERROR("Target not examined yet");
1943                 return ERROR_FAIL;
1944         }
1945
1946         int retval = target_read_memory(target, address, 2, 1, value_buf);
1947
1948         if (retval == ERROR_OK) {
1949                 *value = target_buffer_get_u16(target, value_buf);
1950                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1951                                   address,
1952                                   *value);
1953         } else {
1954                 *value = 0x0;
1955                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1956                                   address);
1957         }
1958
1959         return retval;
1960 }
1961
1962 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1963 {
1964         int retval = target_read_memory(target, address, 1, 1, value);
1965         if (!target_was_examined(target)) {
1966                 LOG_ERROR("Target not examined yet");
1967                 return ERROR_FAIL;
1968         }
1969
1970         if (retval == ERROR_OK) {
1971                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1972                                   address,
1973                                   *value);
1974         } else {
1975                 *value = 0x0;
1976                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1977                                   address);
1978         }
1979
1980         return retval;
1981 }
1982
1983 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1984 {
1985         int retval;
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         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1993                           address,
1994                           value);
1995
1996         target_buffer_set_u32(target, value_buf, value);
1997         retval = target_write_memory(target, address, 4, 1, value_buf);
1998         if (retval != ERROR_OK)
1999                 LOG_DEBUG("failed: %i", retval);
2000
2001         return retval;
2002 }
2003
2004 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
2005 {
2006         int retval;
2007         uint8_t value_buf[2];
2008         if (!target_was_examined(target)) {
2009                 LOG_ERROR("Target not examined yet");
2010                 return ERROR_FAIL;
2011         }
2012
2013         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2014                           address,
2015                           value);
2016
2017         target_buffer_set_u16(target, value_buf, value);
2018         retval = target_write_memory(target, address, 2, 1, value_buf);
2019         if (retval != ERROR_OK)
2020                 LOG_DEBUG("failed: %i", retval);
2021
2022         return retval;
2023 }
2024
2025 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2026 {
2027         int retval;
2028         if (!target_was_examined(target)) {
2029                 LOG_ERROR("Target not examined yet");
2030                 return ERROR_FAIL;
2031         }
2032
2033         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2034                           address, value);
2035
2036         retval = target_write_memory(target, address, 1, 1, &value);
2037         if (retval != ERROR_OK)
2038                 LOG_DEBUG("failed: %i", retval);
2039
2040         return retval;
2041 }
2042
2043 static int find_target(struct command_context *cmd_ctx, const char *name)
2044 {
2045         struct target *target = get_target(name);
2046         if (target == NULL) {
2047                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2048                 return ERROR_FAIL;
2049         }
2050         if (!target->tap->enabled) {
2051                 LOG_USER("Target: TAP %s is disabled, "
2052                          "can't be the current target\n",
2053                          target->tap->dotted_name);
2054                 return ERROR_FAIL;
2055         }
2056
2057         cmd_ctx->current_target = target->target_number;
2058         return ERROR_OK;
2059 }
2060
2061
2062 COMMAND_HANDLER(handle_targets_command)
2063 {
2064         int retval = ERROR_OK;
2065         if (CMD_ARGC == 1) {
2066                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2067                 if (retval == ERROR_OK) {
2068                         /* we're done! */
2069                         return retval;
2070                 }
2071         }
2072
2073         struct target *target = all_targets;
2074         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2075         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2076         while (target) {
2077                 const char *state;
2078                 char marker = ' ';
2079
2080                 if (target->tap->enabled)
2081                         state = target_state_name(target);
2082                 else
2083                         state = "tap-disabled";
2084
2085                 if (CMD_CTX->current_target == target->target_number)
2086                         marker = '*';
2087
2088                 /* keep columns lined up to match the headers above */
2089                 command_print(CMD_CTX,
2090                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2091                                 target->target_number,
2092                                 marker,
2093                                 target_name(target),
2094                                 target_type_name(target),
2095                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2096                                         target->endianness)->name,
2097                                 target->tap->dotted_name,
2098                                 state);
2099                 target = target->next;
2100         }
2101
2102         return retval;
2103 }
2104
2105 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2106
2107 static int powerDropout;
2108 static int srstAsserted;
2109
2110 static int runPowerRestore;
2111 static int runPowerDropout;
2112 static int runSrstAsserted;
2113 static int runSrstDeasserted;
2114
2115 static int sense_handler(void)
2116 {
2117         static int prevSrstAsserted;
2118         static int prevPowerdropout;
2119
2120         int retval = jtag_power_dropout(&powerDropout);
2121         if (retval != ERROR_OK)
2122                 return retval;
2123
2124         int powerRestored;
2125         powerRestored = prevPowerdropout && !powerDropout;
2126         if (powerRestored)
2127                 runPowerRestore = 1;
2128
2129         long long current = timeval_ms();
2130         static long long lastPower;
2131         int waitMore = lastPower + 2000 > current;
2132         if (powerDropout && !waitMore) {
2133                 runPowerDropout = 1;
2134                 lastPower = current;
2135         }
2136
2137         retval = jtag_srst_asserted(&srstAsserted);
2138         if (retval != ERROR_OK)
2139                 return retval;
2140
2141         int srstDeasserted;
2142         srstDeasserted = prevSrstAsserted && !srstAsserted;
2143
2144         static long long lastSrst;
2145         waitMore = lastSrst + 2000 > current;
2146         if (srstDeasserted && !waitMore) {
2147                 runSrstDeasserted = 1;
2148                 lastSrst = current;
2149         }
2150
2151         if (!prevSrstAsserted && srstAsserted)
2152                 runSrstAsserted = 1;
2153
2154         prevSrstAsserted = srstAsserted;
2155         prevPowerdropout = powerDropout;
2156
2157         if (srstDeasserted || powerRestored) {
2158                 /* Other than logging the event we can't do anything here.
2159                  * Issuing a reset is a particularly bad idea as we might
2160                  * be inside a reset already.
2161                  */
2162         }
2163
2164         return ERROR_OK;
2165 }
2166
2167 /* process target state changes */
2168 static int handle_target(void *priv)
2169 {
2170         Jim_Interp *interp = (Jim_Interp *)priv;
2171         int retval = ERROR_OK;
2172
2173         if (!is_jtag_poll_safe()) {
2174                 /* polling is disabled currently */
2175                 return ERROR_OK;
2176         }
2177
2178         /* we do not want to recurse here... */
2179         static int recursive;
2180         if (!recursive) {
2181                 recursive = 1;
2182                 sense_handler();
2183                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2184                  * We need to avoid an infinite loop/recursion here and we do that by
2185                  * clearing the flags after running these events.
2186                  */
2187                 int did_something = 0;
2188                 if (runSrstAsserted) {
2189                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2190                         Jim_Eval(interp, "srst_asserted");
2191                         did_something = 1;
2192                 }
2193                 if (runSrstDeasserted) {
2194                         Jim_Eval(interp, "srst_deasserted");
2195                         did_something = 1;
2196                 }
2197                 if (runPowerDropout) {
2198                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2199                         Jim_Eval(interp, "power_dropout");
2200                         did_something = 1;
2201                 }
2202                 if (runPowerRestore) {
2203                         Jim_Eval(interp, "power_restore");
2204                         did_something = 1;
2205                 }
2206
2207                 if (did_something) {
2208                         /* clear detect flags */
2209                         sense_handler();
2210                 }
2211
2212                 /* clear action flags */
2213
2214                 runSrstAsserted = 0;
2215                 runSrstDeasserted = 0;
2216                 runPowerRestore = 0;
2217                 runPowerDropout = 0;
2218
2219                 recursive = 0;
2220         }
2221
2222         /* Poll targets for state changes unless that's globally disabled.
2223          * Skip targets that are currently disabled.
2224          */
2225         for (struct target *target = all_targets;
2226                         is_jtag_poll_safe() && target;
2227                         target = target->next) {
2228                 if (!target->tap->enabled)
2229                         continue;
2230
2231                 if (target->backoff.times > target->backoff.count) {
2232                         /* do not poll this time as we failed previously */
2233                         target->backoff.count++;
2234                         continue;
2235                 }
2236                 target->backoff.count = 0;
2237
2238                 /* only poll target if we've got power and srst isn't asserted */
2239                 if (!powerDropout && !srstAsserted) {
2240                         /* polling may fail silently until the target has been examined */
2241                         retval = target_poll(target);
2242                         if (retval != ERROR_OK) {
2243                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2244                                 if (target->backoff.times * polling_interval < 5000) {
2245                                         target->backoff.times *= 2;
2246                                         target->backoff.times++;
2247                                 }
2248                                 LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms",
2249                                                 target_name(target),
2250                                                 target->backoff.times * polling_interval);
2251
2252                                 /* Tell GDB to halt the debugger. This allows the user to
2253                                  * run monitor commands to handle the situation.
2254                                  */
2255                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2256                                 return retval;
2257                         }
2258                         /* Since we succeeded, we reset backoff count */
2259                         if (target->backoff.times > 0)
2260                                 LOG_USER("Polling target %s succeeded again", target_name(target));
2261                         target->backoff.times = 0;
2262                 }
2263         }
2264
2265         return retval;
2266 }
2267
2268 COMMAND_HANDLER(handle_reg_command)
2269 {
2270         struct target *target;
2271         struct reg *reg = NULL;
2272         unsigned count = 0;
2273         char *value;
2274
2275         LOG_DEBUG("-");
2276
2277         target = get_current_target(CMD_CTX);
2278
2279         /* list all available registers for the current target */
2280         if (CMD_ARGC == 0) {
2281                 struct reg_cache *cache = target->reg_cache;
2282
2283                 count = 0;
2284                 while (cache) {
2285                         unsigned i;
2286
2287                         command_print(CMD_CTX, "===== %s", cache->name);
2288
2289                         for (i = 0, reg = cache->reg_list;
2290                                         i < cache->num_regs;
2291                                         i++, reg++, count++) {
2292                                 /* only print cached values if they are valid */
2293                                 if (reg->valid) {
2294                                         value = buf_to_str(reg->value,
2295                                                         reg->size, 16);
2296                                         command_print(CMD_CTX,
2297                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2298                                                         count, reg->name,
2299                                                         reg->size, value,
2300                                                         reg->dirty
2301                                                                 ? " (dirty)"
2302                                                                 : "");
2303                                         free(value);
2304                                 } else {
2305                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2306                                                           count, reg->name,
2307                                                           reg->size) ;
2308                                 }
2309                         }
2310                         cache = cache->next;
2311                 }
2312
2313                 return ERROR_OK;
2314         }
2315
2316         /* access a single register by its ordinal number */
2317         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2318                 unsigned num;
2319                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2320
2321                 struct reg_cache *cache = target->reg_cache;
2322                 count = 0;
2323                 while (cache) {
2324                         unsigned i;
2325                         for (i = 0; i < cache->num_regs; i++) {
2326                                 if (count++ == num) {
2327                                         reg = &cache->reg_list[i];
2328                                         break;
2329                                 }
2330                         }
2331                         if (reg)
2332                                 break;
2333                         cache = cache->next;
2334                 }
2335
2336                 if (!reg) {
2337                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2338                                         "has only %i registers (0 - %i)", num, count, count - 1);
2339                         return ERROR_OK;
2340                 }
2341         } else {
2342                 /* access a single register by its name */
2343                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2344
2345                 if (!reg) {
2346                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2347                         return ERROR_OK;
2348                 }
2349         }
2350
2351         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2352
2353         /* display a register */
2354         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2355                         && (CMD_ARGV[1][0] <= '9')))) {
2356                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2357                         reg->valid = 0;
2358
2359                 if (reg->valid == 0)
2360                         reg->type->get(reg);
2361                 value = buf_to_str(reg->value, reg->size, 16);
2362                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2363                 free(value);
2364                 return ERROR_OK;
2365         }
2366
2367         /* set register value */
2368         if (CMD_ARGC == 2) {
2369                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2370                 if (buf == NULL)
2371                         return ERROR_FAIL;
2372                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2373
2374                 reg->type->set(reg, buf);
2375
2376                 value = buf_to_str(reg->value, reg->size, 16);
2377                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2378                 free(value);
2379
2380                 free(buf);
2381
2382                 return ERROR_OK;
2383         }
2384
2385         return ERROR_COMMAND_SYNTAX_ERROR;
2386 }
2387
2388 COMMAND_HANDLER(handle_poll_command)
2389 {
2390         int retval = ERROR_OK;
2391         struct target *target = get_current_target(CMD_CTX);
2392
2393         if (CMD_ARGC == 0) {
2394                 command_print(CMD_CTX, "background polling: %s",
2395                                 jtag_poll_get_enabled() ? "on" : "off");
2396                 command_print(CMD_CTX, "TAP: %s (%s)",
2397                                 target->tap->dotted_name,
2398                                 target->tap->enabled ? "enabled" : "disabled");
2399                 if (!target->tap->enabled)
2400                         return ERROR_OK;
2401                 retval = target_poll(target);
2402                 if (retval != ERROR_OK)
2403                         return retval;
2404                 retval = target_arch_state(target);
2405                 if (retval != ERROR_OK)
2406                         return retval;
2407         } else if (CMD_ARGC == 1) {
2408                 bool enable;
2409                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2410                 jtag_poll_set_enabled(enable);
2411         } else
2412                 return ERROR_COMMAND_SYNTAX_ERROR;
2413
2414         return retval;
2415 }
2416
2417 COMMAND_HANDLER(handle_wait_halt_command)
2418 {
2419         if (CMD_ARGC > 1)
2420                 return ERROR_COMMAND_SYNTAX_ERROR;
2421
2422         unsigned ms = 5000;
2423         if (1 == CMD_ARGC) {
2424                 int retval = parse_uint(CMD_ARGV[0], &ms);
2425                 if (ERROR_OK != retval)
2426                         return ERROR_COMMAND_SYNTAX_ERROR;
2427                 /* convert seconds (given) to milliseconds (needed) */
2428                 ms *= 1000;
2429         }
2430
2431         struct target *target = get_current_target(CMD_CTX);
2432         return target_wait_state(target, TARGET_HALTED, ms);
2433 }
2434
2435 /* wait for target state to change. The trick here is to have a low
2436  * latency for short waits and not to suck up all the CPU time
2437  * on longer waits.
2438  *
2439  * After 500ms, keep_alive() is invoked
2440  */
2441 int target_wait_state(struct target *target, enum target_state state, int ms)
2442 {
2443         int retval;
2444         long long then = 0, cur;
2445         int once = 1;
2446
2447         for (;;) {
2448                 retval = target_poll(target);
2449                 if (retval != ERROR_OK)
2450                         return retval;
2451                 if (target->state == state)
2452                         break;
2453                 cur = timeval_ms();
2454                 if (once) {
2455                         once = 0;
2456                         then = timeval_ms();
2457                         LOG_DEBUG("waiting for target %s...",
2458                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2459                 }
2460
2461                 if (cur-then > 500)
2462                         keep_alive();
2463
2464                 if ((cur-then) > ms) {
2465                         LOG_ERROR("timed out while waiting for target %s",
2466                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2467                         return ERROR_FAIL;
2468                 }
2469         }
2470
2471         return ERROR_OK;
2472 }
2473
2474 COMMAND_HANDLER(handle_halt_command)
2475 {
2476         LOG_DEBUG("-");
2477
2478         struct target *target = get_current_target(CMD_CTX);
2479         int retval = target_halt(target);
2480         if (ERROR_OK != retval)
2481                 return retval;
2482
2483         if (CMD_ARGC == 1) {
2484                 unsigned wait_local;
2485                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2486                 if (ERROR_OK != retval)
2487                         return ERROR_COMMAND_SYNTAX_ERROR;
2488                 if (!wait_local)
2489                         return ERROR_OK;
2490         }
2491
2492         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2493 }
2494
2495 COMMAND_HANDLER(handle_soft_reset_halt_command)
2496 {
2497         struct target *target = get_current_target(CMD_CTX);
2498
2499         LOG_USER("requesting target halt and executing a soft reset");
2500
2501         target->type->soft_reset_halt(target);
2502
2503         return ERROR_OK;
2504 }
2505
2506 COMMAND_HANDLER(handle_reset_command)
2507 {
2508         if (CMD_ARGC > 1)
2509                 return ERROR_COMMAND_SYNTAX_ERROR;
2510
2511         enum target_reset_mode reset_mode = RESET_RUN;
2512         if (CMD_ARGC == 1) {
2513                 const Jim_Nvp *n;
2514                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2515                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2516                         return ERROR_COMMAND_SYNTAX_ERROR;
2517                 reset_mode = n->value;
2518         }
2519
2520         /* reset *all* targets */
2521         return target_process_reset(CMD_CTX, reset_mode);
2522 }
2523
2524
2525 COMMAND_HANDLER(handle_resume_command)
2526 {
2527         int current = 1;
2528         if (CMD_ARGC > 1)
2529                 return ERROR_COMMAND_SYNTAX_ERROR;
2530
2531         struct target *target = get_current_target(CMD_CTX);
2532
2533         /* with no CMD_ARGV, resume from current pc, addr = 0,
2534          * with one arguments, addr = CMD_ARGV[0],
2535          * handle breakpoints, not debugging */
2536         uint32_t addr = 0;
2537         if (CMD_ARGC == 1) {
2538                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2539                 current = 0;
2540         }
2541
2542         return target_resume(target, current, addr, 1, 0);
2543 }
2544
2545 COMMAND_HANDLER(handle_step_command)
2546 {
2547         if (CMD_ARGC > 1)
2548                 return ERROR_COMMAND_SYNTAX_ERROR;
2549
2550         LOG_DEBUG("-");
2551
2552         /* with no CMD_ARGV, step from current pc, addr = 0,
2553          * with one argument addr = CMD_ARGV[0],
2554          * handle breakpoints, debugging */
2555         uint32_t addr = 0;
2556         int current_pc = 1;
2557         if (CMD_ARGC == 1) {
2558                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2559                 current_pc = 0;
2560         }
2561
2562         struct target *target = get_current_target(CMD_CTX);
2563
2564         return target->type->step(target, current_pc, addr, 1);
2565 }
2566
2567 static void handle_md_output(struct command_context *cmd_ctx,
2568                 struct target *target, uint32_t address, unsigned size,
2569                 unsigned count, const uint8_t *buffer)
2570 {
2571         const unsigned line_bytecnt = 32;
2572         unsigned line_modulo = line_bytecnt / size;
2573
2574         char output[line_bytecnt * 4 + 1];
2575         unsigned output_len = 0;
2576
2577         const char *value_fmt;
2578         switch (size) {
2579         case 4:
2580                 value_fmt = "%8.8x ";
2581                 break;
2582         case 2:
2583                 value_fmt = "%4.4x ";
2584                 break;
2585         case 1:
2586                 value_fmt = "%2.2x ";
2587                 break;
2588         default:
2589                 /* "can't happen", caller checked */
2590                 LOG_ERROR("invalid memory read size: %u", size);
2591                 return;
2592         }
2593
2594         for (unsigned i = 0; i < count; i++) {
2595                 if (i % line_modulo == 0) {
2596                         output_len += snprintf(output + output_len,
2597                                         sizeof(output) - output_len,
2598                                         "0x%8.8x: ",
2599                                         (unsigned)(address + (i*size)));
2600                 }
2601
2602                 uint32_t value = 0;
2603                 const uint8_t *value_ptr = buffer + i * size;
2604                 switch (size) {
2605                 case 4:
2606                         value = target_buffer_get_u32(target, value_ptr);
2607                         break;
2608                 case 2:
2609                         value = target_buffer_get_u16(target, value_ptr);
2610                         break;
2611                 case 1:
2612                         value = *value_ptr;
2613                 }
2614                 output_len += snprintf(output + output_len,
2615                                 sizeof(output) - output_len,
2616                                 value_fmt, value);
2617
2618                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2619                         command_print(cmd_ctx, "%s", output);
2620                         output_len = 0;
2621                 }
2622         }
2623 }
2624
2625 COMMAND_HANDLER(handle_md_command)
2626 {
2627         if (CMD_ARGC < 1)
2628                 return ERROR_COMMAND_SYNTAX_ERROR;
2629
2630         unsigned size = 0;
2631         switch (CMD_NAME[2]) {
2632         case 'w':
2633                 size = 4;
2634                 break;
2635         case 'h':
2636                 size = 2;
2637                 break;
2638         case 'b':
2639                 size = 1;
2640                 break;
2641         default:
2642                 return ERROR_COMMAND_SYNTAX_ERROR;
2643         }
2644
2645         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2646         int (*fn)(struct target *target,
2647                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2648         if (physical) {
2649                 CMD_ARGC--;
2650                 CMD_ARGV++;
2651                 fn = target_read_phys_memory;
2652         } else
2653                 fn = target_read_memory;
2654         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2655                 return ERROR_COMMAND_SYNTAX_ERROR;
2656
2657         uint32_t address;
2658         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2659
2660         unsigned count = 1;
2661         if (CMD_ARGC == 2)
2662                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2663
2664         uint8_t *buffer = calloc(count, size);
2665
2666         struct target *target = get_current_target(CMD_CTX);
2667         int retval = fn(target, address, size, count, buffer);
2668         if (ERROR_OK == retval)
2669                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2670
2671         free(buffer);
2672
2673         return retval;
2674 }
2675
2676 typedef int (*target_write_fn)(struct target *target,
2677                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2678
2679 static int target_write_memory_fast(struct target *target,
2680                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2681 {
2682         return target_write_buffer(target, address, size * count, buffer);
2683 }
2684
2685 static int target_fill_mem(struct target *target,
2686                 uint32_t address,
2687                 target_write_fn fn,
2688                 unsigned data_size,
2689                 /* value */
2690                 uint32_t b,
2691                 /* count */
2692                 unsigned c)
2693 {
2694         /* We have to write in reasonably large chunks to be able
2695          * to fill large memory areas with any sane speed */
2696         const unsigned chunk_size = 16384;
2697         uint8_t *target_buf = malloc(chunk_size * data_size);
2698         if (target_buf == NULL) {
2699                 LOG_ERROR("Out of memory");
2700                 return ERROR_FAIL;
2701         }
2702
2703         for (unsigned i = 0; i < chunk_size; i++) {
2704                 switch (data_size) {
2705                 case 4:
2706                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2707                         break;
2708                 case 2:
2709                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2710                         break;
2711                 case 1:
2712                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2713                         break;
2714                 default:
2715                         exit(-1);
2716                 }
2717         }
2718
2719         int retval = ERROR_OK;
2720
2721         for (unsigned x = 0; x < c; x += chunk_size) {
2722                 unsigned current;
2723                 current = c - x;
2724                 if (current > chunk_size)
2725                         current = chunk_size;
2726                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2727                 if (retval != ERROR_OK)
2728                         break;
2729                 /* avoid GDB timeouts */
2730                 keep_alive();
2731         }
2732         free(target_buf);
2733
2734         return retval;
2735 }
2736
2737
2738 COMMAND_HANDLER(handle_mw_command)
2739 {
2740         if (CMD_ARGC < 2)
2741                 return ERROR_COMMAND_SYNTAX_ERROR;
2742         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2743         target_write_fn fn;
2744         if (physical) {
2745                 CMD_ARGC--;
2746                 CMD_ARGV++;
2747                 fn = target_write_phys_memory;
2748         } else
2749                 fn = target_write_memory_fast;
2750         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2751                 return ERROR_COMMAND_SYNTAX_ERROR;
2752
2753         uint32_t address;
2754         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2755
2756         uint32_t value;
2757         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2758
2759         unsigned count = 1;
2760         if (CMD_ARGC == 3)
2761                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2762
2763         struct target *target = get_current_target(CMD_CTX);
2764         unsigned wordsize;
2765         switch (CMD_NAME[2]) {
2766                 case 'w':
2767                         wordsize = 4;
2768                         break;
2769                 case 'h':
2770                         wordsize = 2;
2771                         break;
2772                 case 'b':
2773                         wordsize = 1;
2774                         break;
2775                 default:
2776                         return ERROR_COMMAND_SYNTAX_ERROR;
2777         }
2778
2779         return target_fill_mem(target, address, fn, wordsize, value, count);
2780 }
2781
2782 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2783                 uint32_t *min_address, uint32_t *max_address)
2784 {
2785         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2786                 return ERROR_COMMAND_SYNTAX_ERROR;
2787
2788         /* a base address isn't always necessary,
2789          * default to 0x0 (i.e. don't relocate) */
2790         if (CMD_ARGC >= 2) {
2791                 uint32_t addr;
2792                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2793                 image->base_address = addr;
2794                 image->base_address_set = 1;
2795         } else
2796                 image->base_address_set = 0;
2797
2798         image->start_address_set = 0;
2799
2800         if (CMD_ARGC >= 4)
2801                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2802         if (CMD_ARGC == 5) {
2803                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2804                 /* use size (given) to find max (required) */
2805                 *max_address += *min_address;
2806         }
2807
2808         if (*min_address > *max_address)
2809                 return ERROR_COMMAND_SYNTAX_ERROR;
2810
2811         return ERROR_OK;
2812 }
2813
2814 COMMAND_HANDLER(handle_load_image_command)
2815 {
2816         uint8_t *buffer;
2817         size_t buf_cnt;
2818         uint32_t image_size;
2819         uint32_t min_address = 0;
2820         uint32_t max_address = 0xffffffff;
2821         int i;
2822         struct image image;
2823
2824         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2825                         &image, &min_address, &max_address);
2826         if (ERROR_OK != retval)
2827                 return retval;
2828
2829         struct target *target = get_current_target(CMD_CTX);
2830
2831         struct duration bench;
2832         duration_start(&bench);
2833
2834         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2835                 return ERROR_OK;
2836
2837         image_size = 0x0;
2838         retval = ERROR_OK;
2839         for (i = 0; i < image.num_sections; i++) {
2840                 buffer = malloc(image.sections[i].size);
2841                 if (buffer == NULL) {
2842                         command_print(CMD_CTX,
2843                                                   "error allocating buffer for section (%d bytes)",
2844                                                   (int)(image.sections[i].size));
2845                         break;
2846                 }
2847
2848                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2849                 if (retval != ERROR_OK) {
2850                         free(buffer);
2851                         break;
2852                 }
2853
2854                 uint32_t offset = 0;
2855                 uint32_t length = buf_cnt;
2856
2857                 /* DANGER!!! beware of unsigned comparision here!!! */
2858
2859                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2860                                 (image.sections[i].base_address < max_address)) {
2861
2862                         if (image.sections[i].base_address < min_address) {
2863                                 /* clip addresses below */
2864                                 offset += min_address-image.sections[i].base_address;
2865                                 length -= offset;
2866                         }
2867
2868                         if (image.sections[i].base_address + buf_cnt > max_address)
2869                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2870
2871                         retval = target_write_buffer(target,
2872                                         image.sections[i].base_address + offset, length, buffer + offset);
2873                         if (retval != ERROR_OK) {
2874                                 free(buffer);
2875                                 break;
2876                         }
2877                         image_size += length;
2878                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2879                                         (unsigned int)length,
2880                                         image.sections[i].base_address + offset);
2881                 }
2882
2883                 free(buffer);
2884         }
2885
2886         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2887                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2888                                 "in %fs (%0.3f KiB/s)", image_size,
2889                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2890         }
2891
2892         image_close(&image);
2893
2894         return retval;
2895
2896 }
2897
2898 COMMAND_HANDLER(handle_dump_image_command)
2899 {
2900         struct fileio fileio;
2901         uint8_t *buffer;
2902         int retval, retvaltemp;
2903         uint32_t address, size;
2904         struct duration bench;
2905         struct target *target = get_current_target(CMD_CTX);
2906
2907         if (CMD_ARGC != 3)
2908                 return ERROR_COMMAND_SYNTAX_ERROR;
2909
2910         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2911         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2912
2913         uint32_t buf_size = (size > 4096) ? 4096 : size;
2914         buffer = malloc(buf_size);
2915         if (!buffer)
2916                 return ERROR_FAIL;
2917
2918         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2919         if (retval != ERROR_OK) {
2920                 free(buffer);
2921                 return retval;
2922         }
2923
2924         duration_start(&bench);
2925
2926         while (size > 0) {
2927                 size_t size_written;
2928                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2929                 retval = target_read_buffer(target, address, this_run_size, buffer);
2930                 if (retval != ERROR_OK)
2931                         break;
2932
2933                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2934                 if (retval != ERROR_OK)
2935                         break;
2936
2937                 size -= this_run_size;
2938                 address += this_run_size;
2939         }
2940
2941         free(buffer);
2942
2943         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2944                 int filesize;
2945                 retval = fileio_size(&fileio, &filesize);
2946                 if (retval != ERROR_OK)
2947                         return retval;
2948                 command_print(CMD_CTX,
2949                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2950                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2951         }
2952
2953         retvaltemp = fileio_close(&fileio);
2954         if (retvaltemp != ERROR_OK)
2955                 return retvaltemp;
2956
2957         return retval;
2958 }
2959
2960 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2961 {
2962         uint8_t *buffer;
2963         size_t buf_cnt;
2964         uint32_t image_size;
2965         int i;
2966         int retval;
2967         uint32_t checksum = 0;
2968         uint32_t mem_checksum = 0;
2969
2970         struct image image;
2971
2972         struct target *target = get_current_target(CMD_CTX);
2973
2974         if (CMD_ARGC < 1)
2975                 return ERROR_COMMAND_SYNTAX_ERROR;
2976
2977         if (!target) {
2978                 LOG_ERROR("no target selected");
2979                 return ERROR_FAIL;
2980         }
2981
2982         struct duration bench;
2983         duration_start(&bench);
2984
2985         if (CMD_ARGC >= 2) {
2986                 uint32_t addr;
2987                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2988                 image.base_address = addr;
2989                 image.base_address_set = 1;
2990         } else {
2991                 image.base_address_set = 0;
2992                 image.base_address = 0x0;
2993         }
2994
2995         image.start_address_set = 0;
2996
2997         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
2998         if (retval != ERROR_OK)
2999                 return retval;
3000
3001         image_size = 0x0;
3002         int diffs = 0;
3003         retval = ERROR_OK;
3004         for (i = 0; i < image.num_sections; i++) {
3005                 buffer = malloc(image.sections[i].size);
3006                 if (buffer == NULL) {
3007                         command_print(CMD_CTX,
3008                                         "error allocating buffer for section (%d bytes)",
3009                                         (int)(image.sections[i].size));
3010                         break;
3011                 }
3012                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3013                 if (retval != ERROR_OK) {
3014                         free(buffer);
3015                         break;
3016                 }
3017
3018                 if (verify) {
3019                         /* calculate checksum of image */
3020                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3021                         if (retval != ERROR_OK) {
3022                                 free(buffer);
3023                                 break;
3024                         }
3025
3026                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3027                         if (retval != ERROR_OK) {
3028                                 free(buffer);
3029                                 break;
3030                         }
3031
3032                         if (checksum != mem_checksum) {
3033                                 /* failed crc checksum, fall back to a binary compare */
3034                                 uint8_t *data;
3035
3036                                 if (diffs == 0)
3037                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3038
3039                                 data = (uint8_t *)malloc(buf_cnt);
3040
3041                                 /* Can we use 32bit word accesses? */
3042                                 int size = 1;
3043                                 int count = buf_cnt;
3044                                 if ((count % 4) == 0) {
3045                                         size *= 4;
3046                                         count /= 4;
3047                                 }
3048                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3049                                 if (retval == ERROR_OK) {
3050                                         uint32_t t;
3051                                         for (t = 0; t < buf_cnt; t++) {
3052                                                 if (data[t] != buffer[t]) {
3053                                                         command_print(CMD_CTX,
3054                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3055                                                                                   diffs,
3056                                                                                   (unsigned)(t + image.sections[i].base_address),
3057                                                                                   data[t],
3058                                                                                   buffer[t]);
3059                                                         if (diffs++ >= 127) {
3060                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3061                                                                 free(data);
3062                                                                 free(buffer);
3063                                                                 goto done;
3064                                                         }
3065                                                 }
3066                                                 keep_alive();
3067                                         }
3068                                 }
3069                                 free(data);
3070                         }
3071                 } else {
3072                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3073                                                   image.sections[i].base_address,
3074                                                   buf_cnt);
3075                 }
3076
3077                 free(buffer);
3078                 image_size += buf_cnt;
3079         }
3080         if (diffs > 0)
3081                 command_print(CMD_CTX, "No more differences found.");
3082 done:
3083         if (diffs > 0)
3084                 retval = ERROR_FAIL;
3085         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3086                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3087                                 "in %fs (%0.3f KiB/s)", image_size,
3088                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3089         }
3090
3091         image_close(&image);
3092
3093         return retval;
3094 }
3095
3096 COMMAND_HANDLER(handle_verify_image_command)
3097 {
3098         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3099 }
3100
3101 COMMAND_HANDLER(handle_test_image_command)
3102 {
3103         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3104 }
3105
3106 static int handle_bp_command_list(struct command_context *cmd_ctx)
3107 {
3108         struct target *target = get_current_target(cmd_ctx);
3109         struct breakpoint *breakpoint = target->breakpoints;
3110         while (breakpoint) {
3111                 if (breakpoint->type == BKPT_SOFT) {
3112                         char *buf = buf_to_str(breakpoint->orig_instr,
3113                                         breakpoint->length, 16);
3114                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3115                                         breakpoint->address,
3116                                         breakpoint->length,
3117                                         breakpoint->set, buf);
3118                         free(buf);
3119                 } else {
3120                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3121                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3122                                                         breakpoint->asid,
3123                                                         breakpoint->length, breakpoint->set);
3124                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3125                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3126                                                         breakpoint->address,
3127                                                         breakpoint->length, breakpoint->set);
3128                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3129                                                         breakpoint->asid);
3130                         } else
3131                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3132                                                         breakpoint->address,
3133                                                         breakpoint->length, breakpoint->set);
3134                 }
3135
3136                 breakpoint = breakpoint->next;
3137         }
3138         return ERROR_OK;
3139 }
3140
3141 static int handle_bp_command_set(struct command_context *cmd_ctx,
3142                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3143 {
3144         struct target *target = get_current_target(cmd_ctx);
3145
3146         if (asid == 0) {
3147                 int retval = breakpoint_add(target, addr, length, hw);
3148                 if (ERROR_OK == retval)
3149                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3150                 else {
3151                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3152                         return retval;
3153                 }
3154         } else if (addr == 0) {
3155                 int retval = context_breakpoint_add(target, asid, length, hw);
3156                 if (ERROR_OK == retval)
3157                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3158                 else {
3159                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3160                         return retval;
3161                 }
3162         } else {
3163                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3164                 if (ERROR_OK == retval)
3165                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3166                 else {
3167                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3168                         return retval;
3169                 }
3170         }
3171         return ERROR_OK;
3172 }
3173
3174 COMMAND_HANDLER(handle_bp_command)
3175 {
3176         uint32_t addr;
3177         uint32_t asid;
3178         uint32_t length;
3179         int hw = BKPT_SOFT;
3180
3181         switch (CMD_ARGC) {
3182                 case 0:
3183                         return handle_bp_command_list(CMD_CTX);
3184
3185                 case 2:
3186                         asid = 0;
3187                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3188                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3189                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3190
3191                 case 3:
3192                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3193                                 hw = BKPT_HARD;
3194                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3195
3196                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3197
3198                                 asid = 0;
3199                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3200                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3201                                 hw = BKPT_HARD;
3202                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3203                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3204                                 addr = 0;
3205                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3206                         }
3207
3208                 case 4:
3209                         hw = BKPT_HARD;
3210                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3211                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3212                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3213                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3214
3215                 default:
3216                         return ERROR_COMMAND_SYNTAX_ERROR;
3217         }
3218 }
3219
3220 COMMAND_HANDLER(handle_rbp_command)
3221 {
3222         if (CMD_ARGC != 1)
3223                 return ERROR_COMMAND_SYNTAX_ERROR;
3224
3225         uint32_t addr;
3226         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3227
3228         struct target *target = get_current_target(CMD_CTX);
3229         breakpoint_remove(target, addr);
3230
3231         return ERROR_OK;
3232 }
3233
3234 COMMAND_HANDLER(handle_wp_command)
3235 {
3236         struct target *target = get_current_target(CMD_CTX);
3237
3238         if (CMD_ARGC == 0) {
3239                 struct watchpoint *watchpoint = target->watchpoints;
3240
3241                 while (watchpoint) {
3242                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3243                                         ", len: 0x%8.8" PRIx32
3244                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3245                                         ", mask: 0x%8.8" PRIx32,
3246                                         watchpoint->address,
3247                                         watchpoint->length,
3248                                         (int)watchpoint->rw,
3249                                         watchpoint->value,
3250                                         watchpoint->mask);
3251                         watchpoint = watchpoint->next;
3252                 }
3253                 return ERROR_OK;
3254         }
3255
3256         enum watchpoint_rw type = WPT_ACCESS;
3257         uint32_t addr = 0;
3258         uint32_t length = 0;
3259         uint32_t data_value = 0x0;
3260         uint32_t data_mask = 0xffffffff;
3261
3262         switch (CMD_ARGC) {
3263         case 5:
3264                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3265                 /* fall through */
3266         case 4:
3267                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3268                 /* fall through */
3269         case 3:
3270                 switch (CMD_ARGV[2][0]) {
3271                 case 'r':
3272                         type = WPT_READ;
3273                         break;
3274                 case 'w':
3275                         type = WPT_WRITE;
3276                         break;
3277                 case 'a':
3278                         type = WPT_ACCESS;
3279                         break;
3280                 default:
3281                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3282                         return ERROR_COMMAND_SYNTAX_ERROR;
3283                 }
3284                 /* fall through */
3285         case 2:
3286                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3287                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3288                 break;
3289
3290         default:
3291                 return ERROR_COMMAND_SYNTAX_ERROR;
3292         }
3293
3294         int retval = watchpoint_add(target, addr, length, type,
3295                         data_value, data_mask);
3296         if (ERROR_OK != retval)
3297                 LOG_ERROR("Failure setting watchpoints");
3298
3299         return retval;
3300 }
3301
3302 COMMAND_HANDLER(handle_rwp_command)
3303 {
3304         if (CMD_ARGC != 1)
3305                 return ERROR_COMMAND_SYNTAX_ERROR;
3306
3307         uint32_t addr;
3308         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3309
3310         struct target *target = get_current_target(CMD_CTX);
3311         watchpoint_remove(target, addr);
3312
3313         return ERROR_OK;
3314 }
3315
3316 /**
3317  * Translate a virtual address to a physical address.
3318  *
3319  * The low-level target implementation must have logged a detailed error
3320  * which is forwarded to telnet/GDB session.
3321  */
3322 COMMAND_HANDLER(handle_virt2phys_command)
3323 {
3324         if (CMD_ARGC != 1)
3325                 return ERROR_COMMAND_SYNTAX_ERROR;
3326
3327         uint32_t va;
3328         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3329         uint32_t pa;
3330
3331         struct target *target = get_current_target(CMD_CTX);
3332         int retval = target->type->virt2phys(target, va, &pa);
3333         if (retval == ERROR_OK)
3334                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3335
3336         return retval;
3337 }
3338
3339 static void writeData(FILE *f, const void *data, size_t len)
3340 {
3341         size_t written = fwrite(data, 1, len, f);
3342         if (written != len)
3343                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3344 }
3345
3346 static void writeLong(FILE *f, int l)
3347 {
3348         int i;
3349         for (i = 0; i < 4; i++) {
3350                 char c = (l >> (i*8))&0xff;
3351                 writeData(f, &c, 1);
3352         }
3353
3354 }
3355
3356 static void writeString(FILE *f, char *s)
3357 {
3358         writeData(f, s, strlen(s));
3359 }
3360
3361 /* Dump a gmon.out histogram file. */
3362 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3363 {
3364         uint32_t i;
3365         FILE *f = fopen(filename, "w");
3366         if (f == NULL)
3367                 return;
3368         writeString(f, "gmon");
3369         writeLong(f, 0x00000001); /* Version */
3370         writeLong(f, 0); /* padding */
3371         writeLong(f, 0); /* padding */
3372         writeLong(f, 0); /* padding */
3373
3374         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3375         writeData(f, &zero, 1);
3376
3377         /* figure out bucket size */
3378         uint32_t min = samples[0];
3379         uint32_t max = samples[0];
3380         for (i = 0; i < sampleNum; i++) {
3381                 if (min > samples[i])
3382                         min = samples[i];
3383                 if (max < samples[i])
3384                         max = samples[i];
3385         }
3386
3387         int addressSpace = (max - min + 1);
3388         assert(addressSpace >= 2);
3389
3390         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3391         uint32_t length = addressSpace;
3392         if (length > maxBuckets)
3393                 length = maxBuckets;
3394         int *buckets = malloc(sizeof(int)*length);
3395         if (buckets == NULL) {
3396                 fclose(f);
3397                 return;
3398         }
3399         memset(buckets, 0, sizeof(int) * length);
3400         for (i = 0; i < sampleNum; i++) {
3401                 uint32_t address = samples[i];
3402                 long long a = address - min;
3403                 long long b = length - 1;
3404                 long long c = addressSpace - 1;
3405                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3406                 buckets[index_t]++;
3407         }
3408
3409         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3410         writeLong(f, min);                      /* low_pc */
3411         writeLong(f, max);                      /* high_pc */
3412         writeLong(f, length);           /* # of samples */
3413         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3414         writeString(f, "seconds");
3415         for (i = 0; i < (15-strlen("seconds")); i++)
3416                 writeData(f, &zero, 1);
3417         writeString(f, "s");
3418
3419         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3420
3421         char *data = malloc(2 * length);
3422         if (data != NULL) {
3423                 for (i = 0; i < length; i++) {
3424                         int val;
3425                         val = buckets[i];
3426                         if (val > 65535)
3427                                 val = 65535;
3428                         data[i * 2] = val&0xff;
3429                         data[i * 2 + 1] = (val >> 8) & 0xff;
3430                 }
3431                 free(buckets);
3432                 writeData(f, data, length * 2);
3433                 free(data);
3434         } else
3435                 free(buckets);
3436
3437         fclose(f);
3438 }
3439
3440 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3441  * which will be used as a random sampling of PC */
3442 COMMAND_HANDLER(handle_profile_command)
3443 {
3444         struct target *target = get_current_target(CMD_CTX);
3445         struct timeval timeout, now;
3446
3447         gettimeofday(&timeout, NULL);
3448         if (CMD_ARGC != 2)
3449                 return ERROR_COMMAND_SYNTAX_ERROR;
3450         unsigned offset;
3451         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3452
3453         timeval_add_time(&timeout, offset, 0);
3454
3455         /**
3456          * @todo: Some cores let us sample the PC without the
3457          * annoying halt/resume step; for example, ARMv7 PCSR.
3458          * Provide a way to use that more efficient mechanism.
3459          */
3460
3461         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3462
3463         static const int maxSample = 10000;
3464         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3465         if (samples == NULL)
3466                 return ERROR_OK;
3467
3468         int numSamples = 0;
3469         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3470         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3471
3472         int retval = ERROR_OK;
3473         for (;;) {
3474                 target_poll(target);
3475                 if (target->state == TARGET_HALTED) {
3476                         uint32_t t = *((uint32_t *)reg->value);
3477                         samples[numSamples++] = t;
3478                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
3479                         retval = target_resume(target, 1, 0, 0, 0);
3480                         target_poll(target);
3481                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3482                 } else if (target->state == TARGET_RUNNING) {
3483                         /* We want to quickly sample the PC. */
3484                         retval = target_halt(target);
3485                         if (retval != ERROR_OK) {
3486                                 free(samples);
3487                                 return retval;
3488                         }
3489                 } else {
3490                         command_print(CMD_CTX, "Target not halted or running");
3491                         retval = ERROR_OK;
3492                         break;
3493                 }
3494                 if (retval != ERROR_OK)
3495                         break;
3496
3497                 gettimeofday(&now, NULL);
3498                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec)
3499                                 && (now.tv_usec >= timeout.tv_usec))) {
3500                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3501                         retval = target_poll(target);
3502                         if (retval != ERROR_OK) {
3503                                 free(samples);
3504                                 return retval;
3505                         }
3506                         if (target->state == TARGET_HALTED) {
3507                                 /* current pc, addr = 0, do not handle
3508                                  * breakpoints, not debugging */
3509                                 target_resume(target, 1, 0, 0, 0);
3510                         }
3511                         retval = target_poll(target);
3512                         if (retval != ERROR_OK) {
3513                                 free(samples);
3514                                 return retval;
3515                         }
3516                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3517                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3518                         break;
3519                 }
3520         }
3521         free(samples);
3522
3523         return retval;
3524 }
3525
3526 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3527 {
3528         char *namebuf;
3529         Jim_Obj *nameObjPtr, *valObjPtr;
3530         int result;
3531
3532         namebuf = alloc_printf("%s(%d)", varname, idx);
3533         if (!namebuf)
3534                 return JIM_ERR;
3535
3536         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3537         valObjPtr = Jim_NewIntObj(interp, val);
3538         if (!nameObjPtr || !valObjPtr) {
3539                 free(namebuf);
3540                 return JIM_ERR;
3541         }
3542
3543         Jim_IncrRefCount(nameObjPtr);
3544         Jim_IncrRefCount(valObjPtr);
3545         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3546         Jim_DecrRefCount(interp, nameObjPtr);
3547         Jim_DecrRefCount(interp, valObjPtr);
3548         free(namebuf);
3549         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3550         return result;
3551 }
3552
3553 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3554 {
3555         struct command_context *context;
3556         struct target *target;
3557
3558         context = current_command_context(interp);
3559         assert(context != NULL);
3560
3561         target = get_current_target(context);
3562         if (target == NULL) {
3563                 LOG_ERROR("mem2array: no current target");
3564                 return JIM_ERR;
3565         }
3566
3567         return target_mem2array(interp, target, argc - 1, argv + 1);
3568 }
3569
3570 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3571 {
3572         long l;
3573         uint32_t width;
3574         int len;
3575         uint32_t addr;
3576         uint32_t count;
3577         uint32_t v;
3578         const char *varname;
3579         int  n, e, retval;
3580         uint32_t i;
3581
3582         /* argv[1] = name of array to receive the data
3583          * argv[2] = desired width
3584          * argv[3] = memory address
3585          * argv[4] = count of times to read
3586          */
3587         if (argc != 4) {
3588                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3589                 return JIM_ERR;
3590         }
3591         varname = Jim_GetString(argv[0], &len);
3592         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3593
3594         e = Jim_GetLong(interp, argv[1], &l);
3595         width = l;
3596         if (e != JIM_OK)
3597                 return e;
3598
3599         e = Jim_GetLong(interp, argv[2], &l);
3600         addr = l;
3601         if (e != JIM_OK)
3602                 return e;
3603         e = Jim_GetLong(interp, argv[3], &l);
3604         len = l;
3605         if (e != JIM_OK)
3606                 return e;
3607         switch (width) {
3608                 case 8:
3609                         width = 1;
3610                         break;
3611                 case 16:
3612                         width = 2;
3613                         break;
3614                 case 32:
3615                         width = 4;
3616                         break;
3617                 default:
3618                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3619                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3620                         return JIM_ERR;
3621         }
3622         if (len == 0) {
3623                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3624                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3625                 return JIM_ERR;
3626         }
3627         if ((addr + (len * width)) < addr) {
3628                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3629                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3630                 return JIM_ERR;
3631         }
3632         /* absurd transfer size? */
3633         if (len > 65536) {
3634                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3635                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3636                 return JIM_ERR;
3637         }
3638
3639         if ((width == 1) ||
3640                 ((width == 2) && ((addr & 1) == 0)) ||
3641                 ((width == 4) && ((addr & 3) == 0))) {
3642                 /* all is well */
3643         } else {
3644                 char buf[100];
3645                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3646                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3647                                 addr,
3648                                 width);
3649                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3650                 return JIM_ERR;
3651         }
3652
3653         /* Transfer loop */
3654
3655         /* index counter */
3656         n = 0;
3657
3658         size_t buffersize = 4096;
3659         uint8_t *buffer = malloc(buffersize);
3660         if (buffer == NULL)
3661                 return JIM_ERR;
3662
3663         /* assume ok */
3664         e = JIM_OK;
3665         while (len) {
3666                 /* Slurp... in buffer size chunks */
3667
3668                 count = len; /* in objects.. */
3669                 if (count > (buffersize / width))
3670                         count = (buffersize / width);
3671
3672                 retval = target_read_memory(target, addr, width, count, buffer);
3673                 if (retval != ERROR_OK) {
3674                         /* BOO !*/
3675                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3676                                           (unsigned int)addr,
3677                                           (int)width,
3678                                           (int)count);
3679                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3680                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3681                         e = JIM_ERR;
3682                         break;
3683                 } else {
3684                         v = 0; /* shut up gcc */
3685                         for (i = 0; i < count ; i++, n++) {
3686                                 switch (width) {
3687                                         case 4:
3688                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3689                                                 break;
3690                                         case 2:
3691                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3692                                                 break;
3693                                         case 1:
3694                                                 v = buffer[i] & 0x0ff;
3695                                                 break;
3696                                 }
3697                                 new_int_array_element(interp, varname, n, v);
3698                         }
3699                         len -= count;
3700                 }
3701         }
3702
3703         free(buffer);
3704
3705         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3706
3707         return e;
3708 }
3709
3710 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3711 {
3712         char *namebuf;
3713         Jim_Obj *nameObjPtr, *valObjPtr;
3714         int result;
3715         long l;
3716
3717         namebuf = alloc_printf("%s(%d)", varname, idx);
3718         if (!namebuf)
3719                 return JIM_ERR;
3720
3721         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3722         if (!nameObjPtr) {
3723                 free(namebuf);
3724                 return JIM_ERR;
3725         }
3726
3727         Jim_IncrRefCount(nameObjPtr);
3728         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3729         Jim_DecrRefCount(interp, nameObjPtr);
3730         free(namebuf);
3731         if (valObjPtr == NULL)
3732                 return JIM_ERR;
3733
3734         result = Jim_GetLong(interp, valObjPtr, &l);
3735         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3736         *val = l;
3737         return result;
3738 }
3739
3740 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3741 {
3742         struct command_context *context;
3743         struct target *target;
3744
3745         context = current_command_context(interp);
3746         assert(context != NULL);
3747
3748         target = get_current_target(context);
3749         if (target == NULL) {
3750                 LOG_ERROR("array2mem: no current target");
3751                 return JIM_ERR;
3752         }
3753
3754         return target_array2mem(interp, target, argc-1, argv + 1);
3755 }
3756
3757 static int target_array2mem(Jim_Interp *interp, struct target *target,
3758                 int argc, Jim_Obj *const *argv)
3759 {
3760         long l;
3761         uint32_t width;
3762         int len;
3763         uint32_t addr;
3764         uint32_t count;
3765         uint32_t v;
3766         const char *varname;
3767         int  n, e, retval;
3768         uint32_t i;
3769
3770         /* argv[1] = name of array to get the data
3771          * argv[2] = desired width
3772          * argv[3] = memory address
3773          * argv[4] = count to write
3774          */
3775         if (argc != 4) {
3776                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3777                 return JIM_ERR;
3778         }
3779         varname = Jim_GetString(argv[0], &len);
3780         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3781
3782         e = Jim_GetLong(interp, argv[1], &l);
3783         width = l;
3784         if (e != JIM_OK)
3785                 return e;
3786
3787         e = Jim_GetLong(interp, argv[2], &l);
3788         addr = l;
3789         if (e != JIM_OK)
3790                 return e;
3791         e = Jim_GetLong(interp, argv[3], &l);
3792         len = l;
3793         if (e != JIM_OK)
3794                 return e;
3795         switch (width) {
3796                 case 8:
3797                         width = 1;
3798                         break;
3799                 case 16:
3800                         width = 2;
3801                         break;
3802                 case 32:
3803                         width = 4;
3804                         break;
3805                 default:
3806                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3807                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3808                                         "Invalid width param, must be 8/16/32", NULL);
3809                         return JIM_ERR;
3810         }
3811         if (len == 0) {
3812                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3813                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3814                                 "array2mem: zero width read?", NULL);
3815                 return JIM_ERR;
3816         }
3817         if ((addr + (len * width)) < addr) {
3818                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3819                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3820                                 "array2mem: addr + len - wraps to zero?", NULL);
3821                 return JIM_ERR;
3822         }
3823         /* absurd transfer size? */
3824         if (len > 65536) {
3825                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3826                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3827                                 "array2mem: absurd > 64K item request", NULL);
3828                 return JIM_ERR;
3829         }
3830
3831         if ((width == 1) ||
3832                 ((width == 2) && ((addr & 1) == 0)) ||
3833                 ((width == 4) && ((addr & 3) == 0))) {
3834                 /* all is well */
3835         } else {
3836                 char buf[100];
3837                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3838                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3839                                 (unsigned int)addr,
3840                                 (int)width);
3841                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3842                 return JIM_ERR;
3843         }
3844
3845         /* Transfer loop */
3846
3847         /* index counter */
3848         n = 0;
3849         /* assume ok */
3850         e = JIM_OK;
3851
3852         size_t buffersize = 4096;
3853         uint8_t *buffer = malloc(buffersize);
3854         if (buffer == NULL)
3855                 return JIM_ERR;
3856
3857         while (len) {
3858                 /* Slurp... in buffer size chunks */
3859
3860                 count = len; /* in objects.. */
3861                 if (count > (buffersize / width))
3862                         count = (buffersize / width);
3863
3864                 v = 0; /* shut up gcc */
3865                 for (i = 0; i < count; i++, n++) {
3866                         get_int_array_element(interp, varname, n, &v);
3867                         switch (width) {
3868                         case 4:
3869                                 target_buffer_set_u32(target, &buffer[i * width], v);
3870                                 break;
3871                         case 2:
3872                                 target_buffer_set_u16(target, &buffer[i * width], v);
3873                                 break;
3874                         case 1:
3875                                 buffer[i] = v & 0x0ff;
3876                                 break;
3877                         }
3878                 }
3879                 len -= count;
3880
3881                 retval = target_write_memory(target, addr, width, count, buffer);
3882                 if (retval != ERROR_OK) {
3883                         /* BOO !*/
3884                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3885                                           (unsigned int)addr,
3886                                           (int)width,
3887                                           (int)count);
3888                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3889                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3890                         e = JIM_ERR;
3891                         break;
3892                 }
3893         }
3894
3895         free(buffer);
3896
3897         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3898
3899         return e;
3900 }
3901
3902 /* FIX? should we propagate errors here rather than printing them
3903  * and continuing?
3904  */
3905 void target_handle_event(struct target *target, enum target_event e)
3906 {
3907         struct target_event_action *teap;
3908
3909         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3910                 if (teap->event == e) {
3911                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3912                                            target->target_number,
3913                                            target_name(target),
3914                                            target_type_name(target),
3915                                            e,
3916                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3917                                            Jim_GetString(teap->body, NULL));
3918                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3919                                 Jim_MakeErrorMessage(teap->interp);
3920                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3921                         }
3922                 }
3923         }
3924 }
3925
3926 /**
3927  * Returns true only if the target has a handler for the specified event.
3928  */
3929 bool target_has_event_action(struct target *target, enum target_event event)
3930 {
3931         struct target_event_action *teap;
3932
3933         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3934                 if (teap->event == event)
3935                         return true;
3936         }
3937         return false;
3938 }
3939
3940 enum target_cfg_param {
3941         TCFG_TYPE,
3942         TCFG_EVENT,
3943         TCFG_WORK_AREA_VIRT,
3944         TCFG_WORK_AREA_PHYS,
3945         TCFG_WORK_AREA_SIZE,
3946         TCFG_WORK_AREA_BACKUP,
3947         TCFG_ENDIAN,
3948         TCFG_VARIANT,
3949         TCFG_COREID,
3950         TCFG_CHAIN_POSITION,
3951         TCFG_DBGBASE,
3952         TCFG_RTOS,
3953 };
3954
3955 static Jim_Nvp nvp_config_opts[] = {
3956         { .name = "-type",             .value = TCFG_TYPE },
3957         { .name = "-event",            .value = TCFG_EVENT },
3958         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3959         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3960         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3961         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3962         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3963         { .name = "-variant",          .value = TCFG_VARIANT },
3964         { .name = "-coreid",           .value = TCFG_COREID },
3965         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3966         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3967         { .name = "-rtos",             .value = TCFG_RTOS },
3968         { .name = NULL, .value = -1 }
3969 };
3970
3971 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3972 {
3973         Jim_Nvp *n;
3974         Jim_Obj *o;
3975         jim_wide w;
3976         char *cp;
3977         int e;
3978
3979         /* parse config or cget options ... */
3980         while (goi->argc > 0) {
3981                 Jim_SetEmptyResult(goi->interp);
3982                 /* Jim_GetOpt_Debug(goi); */
3983
3984                 if (target->type->target_jim_configure) {
3985                         /* target defines a configure function */
3986                         /* target gets first dibs on parameters */
3987                         e = (*(target->type->target_jim_configure))(target, goi);
3988                         if (e == JIM_OK) {
3989                                 /* more? */
3990                                 continue;
3991                         }
3992                         if (e == JIM_ERR) {
3993                                 /* An error */
3994                                 return e;
3995                         }
3996                         /* otherwise we 'continue' below */
3997                 }
3998                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3999                 if (e != JIM_OK) {
4000                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4001                         return e;
4002                 }
4003                 switch (n->value) {
4004                 case TCFG_TYPE:
4005                         /* not setable */
4006                         if (goi->isconfigure) {
4007                                 Jim_SetResultFormatted(goi->interp,
4008                                                 "not settable: %s", n->name);
4009                                 return JIM_ERR;
4010                         } else {
4011 no_params:
4012                                 if (goi->argc != 0) {
4013                                         Jim_WrongNumArgs(goi->interp,
4014                                                         goi->argc, goi->argv,
4015                                                         "NO PARAMS");
4016                                         return JIM_ERR;
4017                                 }
4018                         }
4019                         Jim_SetResultString(goi->interp,
4020                                         target_type_name(target), -1);
4021                         /* loop for more */
4022                         break;
4023                 case TCFG_EVENT:
4024                         if (goi->argc == 0) {
4025                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4026                                 return JIM_ERR;
4027                         }
4028
4029                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4030                         if (e != JIM_OK) {
4031                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4032                                 return e;
4033                         }
4034
4035                         if (goi->isconfigure) {
4036                                 if (goi->argc != 1) {
4037                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4038                                         return JIM_ERR;
4039                                 }
4040                         } else {
4041                                 if (goi->argc != 0) {
4042                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4043                                         return JIM_ERR;
4044                                 }
4045                         }
4046
4047                         {
4048                                 struct target_event_action *teap;
4049
4050                                 teap = target->event_action;
4051                                 /* replace existing? */
4052                                 while (teap) {
4053                                         if (teap->event == (enum target_event)n->value)
4054                                                 break;
4055                                         teap = teap->next;
4056                                 }
4057
4058                                 if (goi->isconfigure) {
4059                                         bool replace = true;
4060                                         if (teap == NULL) {
4061                                                 /* create new */
4062                                                 teap = calloc(1, sizeof(*teap));
4063                                                 replace = false;
4064                                         }
4065                                         teap->event = n->value;
4066                                         teap->interp = goi->interp;
4067                                         Jim_GetOpt_Obj(goi, &o);
4068                                         if (teap->body)
4069                                                 Jim_DecrRefCount(teap->interp, teap->body);
4070                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4071                                         /*
4072                                          * FIXME:
4073                                          *     Tcl/TK - "tk events" have a nice feature.
4074                                          *     See the "BIND" command.
4075                                          *    We should support that here.
4076                                          *     You can specify %X and %Y in the event code.
4077                                          *     The idea is: %T - target name.
4078                                          *     The idea is: %N - target number
4079                                          *     The idea is: %E - event name.
4080                                          */
4081                                         Jim_IncrRefCount(teap->body);
4082
4083                                         if (!replace) {
4084                                                 /* add to head of event list */
4085                                                 teap->next = target->event_action;
4086                                                 target->event_action = teap;
4087                                         }
4088                                         Jim_SetEmptyResult(goi->interp);
4089                                 } else {
4090                                         /* get */
4091                                         if (teap == NULL)
4092                                                 Jim_SetEmptyResult(goi->interp);
4093                                         else
4094                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4095                                 }
4096                         }
4097                         /* loop for more */
4098                         break;
4099
4100                 case TCFG_WORK_AREA_VIRT:
4101                         if (goi->isconfigure) {
4102                                 target_free_all_working_areas(target);
4103                                 e = Jim_GetOpt_Wide(goi, &w);
4104                                 if (e != JIM_OK)
4105                                         return e;
4106                                 target->working_area_virt = w;
4107                                 target->working_area_virt_spec = true;
4108                         } else {
4109                                 if (goi->argc != 0)
4110                                         goto no_params;
4111                         }
4112                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4113                         /* loop for more */
4114                         break;
4115
4116                 case TCFG_WORK_AREA_PHYS:
4117                         if (goi->isconfigure) {
4118                                 target_free_all_working_areas(target);
4119                                 e = Jim_GetOpt_Wide(goi, &w);
4120                                 if (e != JIM_OK)
4121                                         return e;
4122                                 target->working_area_phys = w;
4123                                 target->working_area_phys_spec = true;
4124                         } else {
4125                                 if (goi->argc != 0)
4126                                         goto no_params;
4127                         }
4128                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4129                         /* loop for more */
4130                         break;
4131
4132                 case TCFG_WORK_AREA_SIZE:
4133                         if (goi->isconfigure) {
4134                                 target_free_all_working_areas(target);
4135                                 e = Jim_GetOpt_Wide(goi, &w);
4136                                 if (e != JIM_OK)
4137                                         return e;
4138                                 target->working_area_size = w;
4139                         } else {
4140                                 if (goi->argc != 0)
4141                                         goto no_params;
4142                         }
4143                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4144                         /* loop for more */
4145                         break;
4146
4147                 case TCFG_WORK_AREA_BACKUP:
4148                         if (goi->isconfigure) {
4149                                 target_free_all_working_areas(target);
4150                                 e = Jim_GetOpt_Wide(goi, &w);
4151                                 if (e != JIM_OK)
4152                                         return e;
4153                                 /* make this exactly 1 or 0 */
4154                                 target->backup_working_area = (!!w);
4155                         } else {
4156                                 if (goi->argc != 0)
4157                                         goto no_params;
4158                         }
4159                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4160                         /* loop for more e*/
4161                         break;
4162
4163
4164                 case TCFG_ENDIAN:
4165                         if (goi->isconfigure) {
4166                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4167                                 if (e != JIM_OK) {
4168                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4169                                         return e;
4170                                 }
4171                                 target->endianness = n->value;
4172                         } else {
4173                                 if (goi->argc != 0)
4174                                         goto no_params;
4175                         }
4176                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4177                         if (n->name == NULL) {
4178                                 target->endianness = TARGET_LITTLE_ENDIAN;
4179                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4180                         }
4181                         Jim_SetResultString(goi->interp, n->name, -1);
4182                         /* loop for more */
4183                         break;
4184
4185                 case TCFG_VARIANT:
4186                         if (goi->isconfigure) {
4187                                 if (goi->argc < 1) {
4188                                         Jim_SetResultFormatted(goi->interp,
4189                                                                                    "%s ?STRING?",
4190                                                                                    n->name);
4191                                         return JIM_ERR;
4192                                 }
4193                                 if (target->variant)
4194                                         free((void *)(target->variant));
4195                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4196                                 if (e != JIM_OK)
4197                                         return e;
4198                                 target->variant = strdup(cp);
4199                         } else {
4200                                 if (goi->argc != 0)
4201                                         goto no_params;
4202                         }
4203                         Jim_SetResultString(goi->interp, target->variant, -1);
4204                         /* loop for more */
4205                         break;
4206
4207                 case TCFG_COREID:
4208                         if (goi->isconfigure) {
4209                                 e = Jim_GetOpt_Wide(goi, &w);
4210                                 if (e != JIM_OK)
4211                                         return e;
4212                                 target->coreid = (int32_t)w;
4213                         } else {
4214                                 if (goi->argc != 0)
4215                                         goto no_params;
4216                         }
4217                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4218                         /* loop for more */
4219                         break;
4220
4221                 case TCFG_CHAIN_POSITION:
4222                         if (goi->isconfigure) {
4223                                 Jim_Obj *o_t;
4224                                 struct jtag_tap *tap;
4225                                 target_free_all_working_areas(target);
4226                                 e = Jim_GetOpt_Obj(goi, &o_t);
4227                                 if (e != JIM_OK)
4228                                         return e;
4229                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4230                                 if (tap == NULL)
4231                                         return JIM_ERR;
4232                                 /* make this exactly 1 or 0 */
4233                                 target->tap = tap;
4234                         } else {
4235                                 if (goi->argc != 0)
4236                                         goto no_params;
4237                         }
4238                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4239                         /* loop for more e*/
4240                         break;
4241                 case TCFG_DBGBASE:
4242                         if (goi->isconfigure) {
4243                                 e = Jim_GetOpt_Wide(goi, &w);
4244                                 if (e != JIM_OK)
4245                                         return e;
4246                                 target->dbgbase = (uint32_t)w;
4247                                 target->dbgbase_set = true;
4248                         } else {
4249                                 if (goi->argc != 0)
4250                                         goto no_params;
4251                         }
4252                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4253                         /* loop for more */
4254                         break;
4255
4256                 case TCFG_RTOS:
4257                         /* RTOS */
4258                         {
4259                                 int result = rtos_create(goi, target);
4260                                 if (result != JIM_OK)
4261                                         return result;
4262                         }
4263                         /* loop for more */
4264                         break;
4265                 }
4266         } /* while (goi->argc) */
4267
4268
4269                 /* done - we return */
4270         return JIM_OK;
4271 }
4272
4273 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4274 {
4275         Jim_GetOptInfo goi;
4276
4277         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4278         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4279         int need_args = 1 + goi.isconfigure;
4280         if (goi.argc < need_args) {
4281                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4282                         goi.isconfigure
4283                                 ? "missing: -option VALUE ..."
4284                                 : "missing: -option ...");
4285                 return JIM_ERR;
4286         }
4287         struct target *target = Jim_CmdPrivData(goi.interp);
4288         return target_configure(&goi, target);
4289 }
4290
4291 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4292 {
4293         const char *cmd_name = Jim_GetString(argv[0], NULL);
4294
4295         Jim_GetOptInfo goi;
4296         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4297
4298         if (goi.argc < 2 || goi.argc > 4) {
4299                 Jim_SetResultFormatted(goi.interp,
4300                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4301                 return JIM_ERR;
4302         }
4303
4304         target_write_fn fn;
4305         fn = target_write_memory_fast;
4306
4307         int e;
4308         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4309                 /* consume it */
4310                 struct Jim_Obj *obj;
4311                 e = Jim_GetOpt_Obj(&goi, &obj);
4312                 if (e != JIM_OK)
4313                         return e;
4314
4315                 fn = target_write_phys_memory;
4316         }
4317
4318         jim_wide a;
4319         e = Jim_GetOpt_Wide(&goi, &a);
4320         if (e != JIM_OK)
4321                 return e;
4322
4323         jim_wide b;
4324         e = Jim_GetOpt_Wide(&goi, &b);
4325         if (e != JIM_OK)
4326                 return e;
4327
4328         jim_wide c = 1;
4329         if (goi.argc == 1) {
4330                 e = Jim_GetOpt_Wide(&goi, &c);
4331                 if (e != JIM_OK)
4332                         return e;
4333         }
4334
4335         /* all args must be consumed */
4336         if (goi.argc != 0)
4337                 return JIM_ERR;
4338
4339         struct target *target = Jim_CmdPrivData(goi.interp);
4340         unsigned data_size;
4341         if (strcasecmp(cmd_name, "mww") == 0)
4342                 data_size = 4;
4343         else if (strcasecmp(cmd_name, "mwh") == 0)
4344                 data_size = 2;
4345         else if (strcasecmp(cmd_name, "mwb") == 0)
4346                 data_size = 1;
4347         else {
4348                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4349                 return JIM_ERR;
4350         }
4351
4352         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4353 }
4354
4355 /**
4356 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4357 *
4358 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4359 *         mdh [phys] <address> [<count>] - for 16 bit reads
4360 *         mdb [phys] <address> [<count>] - for  8 bit reads
4361 *
4362 *  Count defaults to 1.
4363 *
4364 *  Calls target_read_memory or target_read_phys_memory depending on
4365 *  the presence of the "phys" argument
4366 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4367 *  to int representation in base16.
4368 *  Also outputs read data in a human readable form using command_print
4369 *
4370 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4371 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4372 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4373 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4374 *  on success, with [<count>] number of elements.
4375 *
4376 *  In case of little endian target:
4377 *      Example1: "mdw 0x00000000"  returns "10123456"
4378 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4379 *      Example3: "mdb 0x00000000" returns "56"
4380 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4381 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4382 **/
4383 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4384 {
4385         const char *cmd_name = Jim_GetString(argv[0], NULL);
4386
4387         Jim_GetOptInfo goi;
4388         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4389
4390         if ((goi.argc < 1) || (goi.argc > 3)) {
4391                 Jim_SetResultFormatted(goi.interp,
4392                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4393                 return JIM_ERR;
4394         }
4395
4396         int (*fn)(struct target *target,
4397                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4398         fn = target_read_memory;
4399
4400         int e;
4401         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4402                 /* consume it */
4403                 struct Jim_Obj *obj;
4404                 e = Jim_GetOpt_Obj(&goi, &obj);
4405                 if (e != JIM_OK)
4406                         return e;
4407
4408                 fn = target_read_phys_memory;
4409         }
4410
4411         /* Read address parameter */
4412         jim_wide addr;
4413         e = Jim_GetOpt_Wide(&goi, &addr);
4414         if (e != JIM_OK)
4415                 return JIM_ERR;
4416
4417         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4418         jim_wide count;
4419         if (goi.argc == 1) {
4420                 e = Jim_GetOpt_Wide(&goi, &count);
4421                 if (e != JIM_OK)
4422                         return JIM_ERR;
4423         } else
4424                 count = 1;
4425
4426         /* all args must be consumed */
4427         if (goi.argc != 0)
4428                 return JIM_ERR;
4429
4430         jim_wide dwidth = 1; /* shut up gcc */
4431         if (strcasecmp(cmd_name, "mdw") == 0)
4432                 dwidth = 4;
4433         else if (strcasecmp(cmd_name, "mdh") == 0)
4434                 dwidth = 2;
4435         else if (strcasecmp(cmd_name, "mdb") == 0)
4436                 dwidth = 1;
4437         else {
4438                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4439                 return JIM_ERR;
4440         }
4441
4442         /* convert count to "bytes" */
4443         int bytes = count * dwidth;
4444
4445         struct target *target = Jim_CmdPrivData(goi.interp);
4446         uint8_t  target_buf[32];
4447         jim_wide x, y, z;
4448         while (bytes > 0) {
4449                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4450
4451                 /* Try to read out next block */
4452                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4453
4454                 if (e != ERROR_OK) {
4455                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4456                         return JIM_ERR;
4457                 }
4458
4459                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4460                 switch (dwidth) {
4461                 case 4:
4462                         for (x = 0; x < 16 && x < y; x += 4) {
4463                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4464                                 command_print_sameline(NULL, "%08x ", (int)(z));
4465                         }
4466                         for (; (x < 16) ; x += 4)
4467                                 command_print_sameline(NULL, "         ");
4468                         break;
4469                 case 2:
4470                         for (x = 0; x < 16 && x < y; x += 2) {
4471                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4472                                 command_print_sameline(NULL, "%04x ", (int)(z));
4473                         }
4474                         for (; (x < 16) ; x += 2)
4475                                 command_print_sameline(NULL, "     ");
4476                         break;
4477                 case 1:
4478                 default:
4479                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4480                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4481                                 command_print_sameline(NULL, "%02x ", (int)(z));
4482                         }
4483                         for (; (x < 16) ; x += 1)
4484                                 command_print_sameline(NULL, "   ");
4485                         break;
4486                 }
4487                 /* ascii-ify the bytes */
4488                 for (x = 0 ; x < y ; x++) {
4489                         if ((target_buf[x] >= 0x20) &&
4490                                 (target_buf[x] <= 0x7e)) {
4491                                 /* good */
4492                         } else {
4493                                 /* smack it */
4494                                 target_buf[x] = '.';
4495                         }
4496                 }
4497                 /* space pad  */
4498                 while (x < 16) {
4499                         target_buf[x] = ' ';
4500                         x++;
4501                 }
4502                 /* terminate */
4503                 target_buf[16] = 0;
4504                 /* print - with a newline */
4505                 command_print_sameline(NULL, "%s\n", target_buf);
4506                 /* NEXT... */
4507                 bytes -= 16;
4508                 addr += 16;
4509         }
4510         return JIM_OK;
4511 }
4512
4513 static int jim_target_mem2array(Jim_Interp *interp,
4514                 int argc, Jim_Obj *const *argv)
4515 {
4516         struct target *target = Jim_CmdPrivData(interp);
4517         return target_mem2array(interp, target, argc - 1, argv + 1);
4518 }
4519
4520 static int jim_target_array2mem(Jim_Interp *interp,
4521                 int argc, Jim_Obj *const *argv)
4522 {
4523         struct target *target = Jim_CmdPrivData(interp);
4524         return target_array2mem(interp, target, argc - 1, argv + 1);
4525 }
4526
4527 static int jim_target_tap_disabled(Jim_Interp *interp)
4528 {
4529         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4530         return JIM_ERR;
4531 }
4532
4533 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4534 {
4535         if (argc != 1) {
4536                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4537                 return JIM_ERR;
4538         }
4539         struct target *target = Jim_CmdPrivData(interp);
4540         if (!target->tap->enabled)
4541                 return jim_target_tap_disabled(interp);
4542
4543         int e = target->type->examine(target);
4544         if (e != ERROR_OK)
4545                 return JIM_ERR;
4546         return JIM_OK;
4547 }
4548
4549 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4550 {
4551         if (argc != 1) {
4552                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4553                 return JIM_ERR;
4554         }
4555         struct target *target = Jim_CmdPrivData(interp);
4556
4557         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4558                 return JIM_ERR;
4559
4560         return JIM_OK;
4561 }
4562
4563 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4564 {
4565         if (argc != 1) {
4566                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4567                 return JIM_ERR;
4568         }
4569         struct target *target = Jim_CmdPrivData(interp);
4570         if (!target->tap->enabled)
4571                 return jim_target_tap_disabled(interp);
4572
4573         int e;
4574         if (!(target_was_examined(target)))
4575                 e = ERROR_TARGET_NOT_EXAMINED;
4576         else
4577                 e = target->type->poll(target);
4578         if (e != ERROR_OK)
4579                 return JIM_ERR;
4580         return JIM_OK;
4581 }
4582
4583 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4584 {
4585         Jim_GetOptInfo goi;
4586         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4587
4588         if (goi.argc != 2) {
4589                 Jim_WrongNumArgs(interp, 0, argv,
4590                                 "([tT]|[fF]|assert|deassert) BOOL");
4591                 return JIM_ERR;
4592         }
4593
4594         Jim_Nvp *n;
4595         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4596         if (e != JIM_OK) {
4597                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4598                 return e;
4599         }
4600         /* the halt or not param */
4601         jim_wide a;
4602         e = Jim_GetOpt_Wide(&goi, &a);
4603         if (e != JIM_OK)
4604                 return e;
4605
4606         struct target *target = Jim_CmdPrivData(goi.interp);
4607         if (!target->tap->enabled)
4608                 return jim_target_tap_disabled(interp);
4609         if (!(target_was_examined(target))) {
4610                 LOG_ERROR("Target not examined yet");
4611                 return ERROR_TARGET_NOT_EXAMINED;
4612         }
4613         if (!target->type->assert_reset || !target->type->deassert_reset) {
4614                 Jim_SetResultFormatted(interp,
4615                                 "No target-specific reset for %s",
4616                                 target_name(target));
4617                 return JIM_ERR;
4618         }
4619         /* determine if we should halt or not. */
4620         target->reset_halt = !!a;
4621         /* When this happens - all workareas are invalid. */
4622         target_free_all_working_areas_restore(target, 0);
4623
4624         /* do the assert */
4625         if (n->value == NVP_ASSERT)
4626                 e = target->type->assert_reset(target);
4627         else
4628                 e = target->type->deassert_reset(target);
4629         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4630 }
4631
4632 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4633 {
4634         if (argc != 1) {
4635                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4636                 return JIM_ERR;
4637         }
4638         struct target *target = Jim_CmdPrivData(interp);
4639         if (!target->tap->enabled)
4640                 return jim_target_tap_disabled(interp);
4641         int e = target->type->halt(target);
4642         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4643 }
4644
4645 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4646 {
4647         Jim_GetOptInfo goi;
4648         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4649
4650         /* params:  <name>  statename timeoutmsecs */
4651         if (goi.argc != 2) {
4652                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4653                 Jim_SetResultFormatted(goi.interp,
4654                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4655                 return JIM_ERR;
4656         }
4657
4658         Jim_Nvp *n;
4659         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4660         if (e != JIM_OK) {
4661                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4662                 return e;
4663         }
4664         jim_wide a;
4665         e = Jim_GetOpt_Wide(&goi, &a);
4666         if (e != JIM_OK)
4667                 return e;
4668         struct target *target = Jim_CmdPrivData(interp);
4669         if (!target->tap->enabled)
4670                 return jim_target_tap_disabled(interp);
4671
4672         e = target_wait_state(target, n->value, a);
4673         if (e != ERROR_OK) {
4674                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4675                 Jim_SetResultFormatted(goi.interp,
4676                                 "target: %s wait %s fails (%#s) %s",
4677                                 target_name(target), n->name,
4678                                 eObj, target_strerror_safe(e));
4679                 Jim_FreeNewObj(interp, eObj);
4680                 return JIM_ERR;
4681         }
4682         return JIM_OK;
4683 }
4684 /* List for human, Events defined for this target.
4685  * scripts/programs should use 'name cget -event NAME'
4686  */
4687 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4688 {
4689         struct command_context *cmd_ctx = current_command_context(interp);
4690         assert(cmd_ctx != NULL);
4691
4692         struct target *target = Jim_CmdPrivData(interp);
4693         struct target_event_action *teap = target->event_action;
4694         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4695                                    target->target_number,
4696                                    target_name(target));
4697         command_print(cmd_ctx, "%-25s | Body", "Event");
4698         command_print(cmd_ctx, "------------------------- | "
4699                         "----------------------------------------");
4700         while (teap) {
4701                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4702                 command_print(cmd_ctx, "%-25s | %s",
4703                                 opt->name, Jim_GetString(teap->body, NULL));
4704                 teap = teap->next;
4705         }
4706         command_print(cmd_ctx, "***END***");
4707         return JIM_OK;
4708 }
4709 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4710 {
4711         if (argc != 1) {
4712                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4713                 return JIM_ERR;
4714         }
4715         struct target *target = Jim_CmdPrivData(interp);
4716         Jim_SetResultString(interp, target_state_name(target), -1);
4717         return JIM_OK;
4718 }
4719 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4720 {
4721         Jim_GetOptInfo goi;
4722         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4723         if (goi.argc != 1) {
4724                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4725                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4726                 return JIM_ERR;
4727         }
4728         Jim_Nvp *n;
4729         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4730         if (e != JIM_OK) {
4731                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4732                 return e;
4733         }
4734         struct target *target = Jim_CmdPrivData(interp);
4735         target_handle_event(target, n->value);
4736         return JIM_OK;
4737 }
4738
4739 static const struct command_registration target_instance_command_handlers[] = {
4740         {
4741                 .name = "configure",
4742                 .mode = COMMAND_CONFIG,
4743                 .jim_handler = jim_target_configure,
4744                 .help  = "configure a new target for use",
4745                 .usage = "[target_attribute ...]",
4746         },
4747         {
4748                 .name = "cget",
4749                 .mode = COMMAND_ANY,
4750                 .jim_handler = jim_target_configure,
4751                 .help  = "returns the specified target attribute",
4752                 .usage = "target_attribute",
4753         },
4754         {
4755                 .name = "mww",
4756                 .mode = COMMAND_EXEC,
4757                 .jim_handler = jim_target_mw,
4758                 .help = "Write 32-bit word(s) to target memory",
4759                 .usage = "address data [count]",
4760         },
4761         {
4762                 .name = "mwh",
4763                 .mode = COMMAND_EXEC,
4764                 .jim_handler = jim_target_mw,
4765                 .help = "Write 16-bit half-word(s) to target memory",
4766                 .usage = "address data [count]",
4767         },
4768         {
4769                 .name = "mwb",
4770                 .mode = COMMAND_EXEC,
4771                 .jim_handler = jim_target_mw,
4772                 .help = "Write byte(s) to target memory",
4773                 .usage = "address data [count]",
4774         },
4775         {
4776                 .name = "mdw",
4777                 .mode = COMMAND_EXEC,
4778                 .jim_handler = jim_target_md,
4779                 .help = "Display target memory as 32-bit words",
4780                 .usage = "address [count]",
4781         },
4782         {
4783                 .name = "mdh",
4784                 .mode = COMMAND_EXEC,
4785                 .jim_handler = jim_target_md,
4786                 .help = "Display target memory as 16-bit half-words",
4787                 .usage = "address [count]",
4788         },
4789         {
4790                 .name = "mdb",
4791                 .mode = COMMAND_EXEC,
4792                 .jim_handler = jim_target_md,
4793                 .help = "Display target memory as 8-bit bytes",
4794                 .usage = "address [count]",
4795         },
4796         {
4797                 .name = "array2mem",
4798                 .mode = COMMAND_EXEC,
4799                 .jim_handler = jim_target_array2mem,
4800                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4801                         "to target memory",
4802                 .usage = "arrayname bitwidth address count",
4803         },
4804         {
4805                 .name = "mem2array",
4806                 .mode = COMMAND_EXEC,
4807                 .jim_handler = jim_target_mem2array,
4808                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4809                         "from target memory",
4810                 .usage = "arrayname bitwidth address count",
4811         },
4812         {
4813                 .name = "eventlist",
4814                 .mode = COMMAND_EXEC,
4815                 .jim_handler = jim_target_event_list,
4816                 .help = "displays a table of events defined for this target",
4817         },
4818         {
4819                 .name = "curstate",
4820                 .mode = COMMAND_EXEC,
4821                 .jim_handler = jim_target_current_state,
4822                 .help = "displays the current state of this target",
4823         },
4824         {
4825                 .name = "arp_examine",
4826                 .mode = COMMAND_EXEC,
4827                 .jim_handler = jim_target_examine,
4828                 .help = "used internally for reset processing",
4829         },
4830         {
4831                 .name = "arp_halt_gdb",
4832                 .mode = COMMAND_EXEC,
4833                 .jim_handler = jim_target_halt_gdb,
4834                 .help = "used internally for reset processing to halt GDB",
4835         },
4836         {
4837                 .name = "arp_poll",
4838                 .mode = COMMAND_EXEC,
4839                 .jim_handler = jim_target_poll,
4840                 .help = "used internally for reset processing",
4841         },
4842         {
4843                 .name = "arp_reset",
4844                 .mode = COMMAND_EXEC,
4845                 .jim_handler = jim_target_reset,
4846                 .help = "used internally for reset processing",
4847         },
4848         {
4849                 .name = "arp_halt",
4850                 .mode = COMMAND_EXEC,
4851                 .jim_handler = jim_target_halt,
4852                 .help = "used internally for reset processing",
4853         },
4854         {
4855                 .name = "arp_waitstate",
4856                 .mode = COMMAND_EXEC,
4857                 .jim_handler = jim_target_wait_state,
4858                 .help = "used internally for reset processing",
4859         },
4860         {
4861                 .name = "invoke-event",
4862                 .mode = COMMAND_EXEC,
4863                 .jim_handler = jim_target_invoke_event,
4864                 .help = "invoke handler for specified event",
4865                 .usage = "event_name",
4866         },
4867         COMMAND_REGISTRATION_DONE
4868 };
4869
4870 static int target_create(Jim_GetOptInfo *goi)
4871 {
4872         Jim_Obj *new_cmd;
4873         Jim_Cmd *cmd;
4874         const char *cp;
4875         char *cp2;
4876         int e;
4877         int x;
4878         struct target *target;
4879         struct command_context *cmd_ctx;
4880
4881         cmd_ctx = current_command_context(goi->interp);
4882         assert(cmd_ctx != NULL);
4883
4884         if (goi->argc < 3) {
4885                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4886                 return JIM_ERR;
4887         }
4888
4889         /* COMMAND */
4890         Jim_GetOpt_Obj(goi, &new_cmd);
4891         /* does this command exist? */
4892         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4893         if (cmd) {
4894                 cp = Jim_GetString(new_cmd, NULL);
4895                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4896                 return JIM_ERR;
4897         }
4898
4899         /* TYPE */
4900         e = Jim_GetOpt_String(goi, &cp2, NULL);
4901         if (e != JIM_OK)
4902                 return e;
4903         cp = cp2;
4904         /* now does target type exist */
4905         for (x = 0 ; target_types[x] ; x++) {
4906                 if (0 == strcmp(cp, target_types[x]->name)) {
4907                         /* found */
4908                         break;
4909                 }
4910
4911                 /* check for deprecated name */
4912                 if (target_types[x]->deprecated_name) {
4913                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
4914                                 /* found */
4915                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
4916                                 break;
4917                         }
4918                 }
4919         }
4920         if (target_types[x] == NULL) {
4921                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4922                 for (x = 0 ; target_types[x] ; x++) {
4923                         if (target_types[x + 1]) {
4924                                 Jim_AppendStrings(goi->interp,
4925                                                                    Jim_GetResult(goi->interp),
4926                                                                    target_types[x]->name,
4927                                                                    ", ", NULL);
4928                         } else {
4929                                 Jim_AppendStrings(goi->interp,
4930                                                                    Jim_GetResult(goi->interp),
4931                                                                    " or ",
4932                                                                    target_types[x]->name, NULL);
4933                         }
4934                 }
4935                 return JIM_ERR;
4936         }
4937
4938         /* Create it */
4939         target = calloc(1, sizeof(struct target));
4940         /* set target number */
4941         target->target_number = new_target_number();
4942
4943         /* allocate memory for each unique target type */
4944         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
4945
4946         memcpy(target->type, target_types[x], sizeof(struct target_type));
4947
4948         /* will be set by "-endian" */
4949         target->endianness = TARGET_ENDIAN_UNKNOWN;
4950
4951         /* default to first core, override with -coreid */
4952         target->coreid = 0;
4953
4954         target->working_area        = 0x0;
4955         target->working_area_size   = 0x0;
4956         target->working_areas       = NULL;
4957         target->backup_working_area = 0;
4958
4959         target->state               = TARGET_UNKNOWN;
4960         target->debug_reason        = DBG_REASON_UNDEFINED;
4961         target->reg_cache           = NULL;
4962         target->breakpoints         = NULL;
4963         target->watchpoints         = NULL;
4964         target->next                = NULL;
4965         target->arch_info           = NULL;
4966
4967         target->display             = 1;
4968
4969         target->halt_issued                     = false;
4970
4971         /* initialize trace information */
4972         target->trace_info = malloc(sizeof(struct trace));
4973         target->trace_info->num_trace_points         = 0;
4974         target->trace_info->trace_points_size        = 0;
4975         target->trace_info->trace_points             = NULL;
4976         target->trace_info->trace_history_size       = 0;
4977         target->trace_info->trace_history            = NULL;
4978         target->trace_info->trace_history_pos        = 0;
4979         target->trace_info->trace_history_overflowed = 0;
4980
4981         target->dbgmsg          = NULL;
4982         target->dbg_msg_enabled = 0;
4983
4984         target->endianness = TARGET_ENDIAN_UNKNOWN;
4985
4986         target->rtos = NULL;
4987         target->rtos_auto_detect = false;
4988
4989         /* Do the rest as "configure" options */
4990         goi->isconfigure = 1;
4991         e = target_configure(goi, target);
4992
4993         if (target->tap == NULL) {
4994                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4995                 e = JIM_ERR;
4996         }
4997
4998         if (e != JIM_OK) {
4999                 free(target->type);
5000                 free(target);
5001                 return e;
5002         }
5003
5004         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5005                 /* default endian to little if not specified */
5006                 target->endianness = TARGET_LITTLE_ENDIAN;
5007         }
5008
5009         /* incase variant is not set */
5010         if (!target->variant)
5011                 target->variant = strdup("");
5012
5013         cp = Jim_GetString(new_cmd, NULL);
5014         target->cmd_name = strdup(cp);
5015
5016         /* create the target specific commands */
5017         if (target->type->commands) {
5018                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5019                 if (ERROR_OK != e)
5020                         LOG_ERROR("unable to register '%s' commands", cp);
5021         }
5022         if (target->type->target_create)
5023                 (*(target->type->target_create))(target, goi->interp);
5024
5025         /* append to end of list */
5026         {
5027                 struct target **tpp;
5028                 tpp = &(all_targets);
5029                 while (*tpp)
5030                         tpp = &((*tpp)->next);
5031                 *tpp = target;
5032         }
5033
5034         /* now - create the new target name command */
5035         const const struct command_registration target_subcommands[] = {
5036                 {
5037                         .chain = target_instance_command_handlers,
5038                 },
5039                 {
5040                         .chain = target->type->commands,
5041                 },
5042                 COMMAND_REGISTRATION_DONE
5043         };
5044         const const struct command_registration target_commands[] = {
5045                 {
5046                         .name = cp,
5047                         .mode = COMMAND_ANY,
5048                         .help = "target command group",
5049                         .usage = "",
5050                         .chain = target_subcommands,
5051                 },
5052                 COMMAND_REGISTRATION_DONE
5053         };
5054         e = register_commands(cmd_ctx, NULL, target_commands);
5055         if (ERROR_OK != e)
5056                 return JIM_ERR;
5057
5058         struct command *c = command_find_in_context(cmd_ctx, cp);
5059         assert(c);
5060         command_set_handler_data(c, target);
5061
5062         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5063 }
5064
5065 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5066 {
5067         if (argc != 1) {
5068                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5069                 return JIM_ERR;
5070         }
5071         struct command_context *cmd_ctx = current_command_context(interp);
5072         assert(cmd_ctx != NULL);
5073
5074         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
5075         return JIM_OK;
5076 }
5077
5078 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5079 {
5080         if (argc != 1) {
5081                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5082                 return JIM_ERR;
5083         }
5084         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5085         for (unsigned x = 0; NULL != target_types[x]; x++) {
5086                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5087                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5088         }
5089         return JIM_OK;
5090 }
5091
5092 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5093 {
5094         if (argc != 1) {
5095                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5096                 return JIM_ERR;
5097         }
5098         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5099         struct target *target = all_targets;
5100         while (target) {
5101                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5102                         Jim_NewStringObj(interp, target_name(target), -1));
5103                 target = target->next;
5104         }
5105         return JIM_OK;
5106 }
5107
5108 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5109 {
5110         int i;
5111         const char *targetname;
5112         int retval, len;
5113         struct target *target = (struct target *) NULL;
5114         struct target_list *head, *curr, *new;
5115         curr = (struct target_list *) NULL;
5116         head = (struct target_list *) NULL;
5117
5118         retval = 0;
5119         LOG_DEBUG("%d", argc);
5120         /* argv[1] = target to associate in smp
5121          * argv[2] = target to assoicate in smp
5122          * argv[3] ...
5123          */
5124
5125         for (i = 1; i < argc; i++) {
5126
5127                 targetname = Jim_GetString(argv[i], &len);
5128                 target = get_target(targetname);
5129                 LOG_DEBUG("%s ", targetname);
5130                 if (target) {
5131                         new = malloc(sizeof(struct target_list));
5132                         new->target = target;
5133                         new->next = (struct target_list *)NULL;
5134                         if (head == (struct target_list *)NULL) {
5135                                 head = new;
5136                                 curr = head;
5137                         } else {
5138                                 curr->next = new;
5139                                 curr = new;
5140                         }
5141                 }
5142         }
5143         /*  now parse the list of cpu and put the target in smp mode*/
5144         curr = head;
5145
5146         while (curr != (struct target_list *)NULL) {
5147                 target = curr->target;
5148                 target->smp = 1;
5149                 target->head = head;
5150                 curr = curr->next;
5151         }
5152
5153         if (target && target->rtos)
5154                 retval = rtos_smp_init(head->target);
5155
5156         return retval;
5157 }
5158
5159
5160 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5161 {
5162         Jim_GetOptInfo goi;
5163         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5164         if (goi.argc < 3) {
5165                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5166                         "<name> <target_type> [<target_options> ...]");
5167                 return JIM_ERR;
5168         }
5169         return target_create(&goi);
5170 }
5171
5172 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5173 {
5174         Jim_GetOptInfo goi;
5175         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5176
5177         /* It's OK to remove this mechanism sometime after August 2010 or so */
5178         LOG_WARNING("don't use numbers as target identifiers; use names");
5179         if (goi.argc != 1) {
5180                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5181                 return JIM_ERR;
5182         }
5183         jim_wide w;
5184         int e = Jim_GetOpt_Wide(&goi, &w);
5185         if (e != JIM_OK)
5186                 return JIM_ERR;
5187
5188         struct target *target;
5189         for (target = all_targets; NULL != target; target = target->next) {
5190                 if (target->target_number != w)
5191                         continue;
5192
5193                 Jim_SetResultString(goi.interp, target_name(target), -1);
5194                 return JIM_OK;
5195         }
5196         {
5197                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5198                 Jim_SetResultFormatted(goi.interp,
5199                         "Target: number %#s does not exist", wObj);
5200                 Jim_FreeNewObj(interp, wObj);
5201         }
5202         return JIM_ERR;
5203 }
5204
5205 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5206 {
5207         if (argc != 1) {
5208                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5209                 return JIM_ERR;
5210         }
5211         unsigned count = 0;
5212         struct target *target = all_targets;
5213         while (NULL != target) {
5214                 target = target->next;
5215                 count++;
5216         }
5217         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5218         return JIM_OK;
5219 }
5220
5221 static const struct command_registration target_subcommand_handlers[] = {
5222         {
5223                 .name = "init",
5224                 .mode = COMMAND_CONFIG,
5225                 .handler = handle_target_init_command,
5226                 .help = "initialize targets",
5227         },
5228         {
5229                 .name = "create",
5230                 /* REVISIT this should be COMMAND_CONFIG ... */
5231                 .mode = COMMAND_ANY,
5232                 .jim_handler = jim_target_create,
5233                 .usage = "name type '-chain-position' name [options ...]",
5234                 .help = "Creates and selects a new target",
5235         },
5236         {
5237                 .name = "current",
5238                 .mode = COMMAND_ANY,
5239                 .jim_handler = jim_target_current,
5240                 .help = "Returns the currently selected target",
5241         },
5242         {
5243                 .name = "types",
5244                 .mode = COMMAND_ANY,
5245                 .jim_handler = jim_target_types,
5246                 .help = "Returns the available target types as "
5247                                 "a list of strings",
5248         },
5249         {
5250                 .name = "names",
5251                 .mode = COMMAND_ANY,
5252                 .jim_handler = jim_target_names,
5253                 .help = "Returns the names of all targets as a list of strings",
5254         },
5255         {
5256                 .name = "number",
5257                 .mode = COMMAND_ANY,
5258                 .jim_handler = jim_target_number,
5259                 .usage = "number",
5260                 .help = "Returns the name of the numbered target "
5261                         "(DEPRECATED)",
5262         },
5263         {
5264                 .name = "count",
5265                 .mode = COMMAND_ANY,
5266                 .jim_handler = jim_target_count,
5267                 .help = "Returns the number of targets as an integer "
5268                         "(DEPRECATED)",
5269         },
5270         {
5271                 .name = "smp",
5272                 .mode = COMMAND_ANY,
5273                 .jim_handler = jim_target_smp,
5274                 .usage = "targetname1 targetname2 ...",
5275                 .help = "gather several target in a smp list"
5276         },
5277
5278         COMMAND_REGISTRATION_DONE
5279 };
5280
5281 struct FastLoad {
5282         uint32_t address;
5283         uint8_t *data;
5284         int length;
5285
5286 };
5287
5288 static int fastload_num;
5289 static struct FastLoad *fastload;
5290
5291 static void free_fastload(void)
5292 {
5293         if (fastload != NULL) {
5294                 int i;
5295                 for (i = 0; i < fastload_num; i++) {
5296                         if (fastload[i].data)
5297                                 free(fastload[i].data);
5298                 }
5299                 free(fastload);
5300                 fastload = NULL;
5301         }
5302 }
5303
5304 COMMAND_HANDLER(handle_fast_load_image_command)
5305 {
5306         uint8_t *buffer;
5307         size_t buf_cnt;
5308         uint32_t image_size;
5309         uint32_t min_address = 0;
5310         uint32_t max_address = 0xffffffff;
5311         int i;
5312
5313         struct image image;
5314
5315         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5316                         &image, &min_address, &max_address);
5317         if (ERROR_OK != retval)
5318                 return retval;
5319
5320         struct duration bench;
5321         duration_start(&bench);
5322
5323         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5324         if (retval != ERROR_OK)
5325                 return retval;
5326
5327         image_size = 0x0;
5328         retval = ERROR_OK;
5329         fastload_num = image.num_sections;
5330         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5331         if (fastload == NULL) {
5332                 command_print(CMD_CTX, "out of memory");
5333                 image_close(&image);
5334                 return ERROR_FAIL;
5335         }
5336         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5337         for (i = 0; i < image.num_sections; i++) {
5338                 buffer = malloc(image.sections[i].size);
5339                 if (buffer == NULL) {
5340                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5341                                                   (int)(image.sections[i].size));
5342                         retval = ERROR_FAIL;
5343                         break;
5344                 }
5345
5346                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5347                 if (retval != ERROR_OK) {
5348                         free(buffer);
5349                         break;
5350                 }
5351
5352                 uint32_t offset = 0;
5353                 uint32_t length = buf_cnt;
5354
5355                 /* DANGER!!! beware of unsigned comparision here!!! */
5356
5357                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5358                                 (image.sections[i].base_address < max_address)) {
5359                         if (image.sections[i].base_address < min_address) {
5360                                 /* clip addresses below */
5361                                 offset += min_address-image.sections[i].base_address;
5362                                 length -= offset;
5363                         }
5364
5365                         if (image.sections[i].base_address + buf_cnt > max_address)
5366                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5367
5368                         fastload[i].address = image.sections[i].base_address + offset;
5369                         fastload[i].data = malloc(length);
5370                         if (fastload[i].data == NULL) {
5371                                 free(buffer);
5372                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5373                                                           length);
5374                                 retval = ERROR_FAIL;
5375                                 break;
5376                         }
5377                         memcpy(fastload[i].data, buffer + offset, length);
5378                         fastload[i].length = length;
5379
5380                         image_size += length;
5381                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5382                                                   (unsigned int)length,
5383                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5384                 }
5385
5386                 free(buffer);
5387         }
5388
5389         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5390                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5391                                 "in %fs (%0.3f KiB/s)", image_size,
5392                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5393
5394                 command_print(CMD_CTX,
5395                                 "WARNING: image has not been loaded to target!"
5396                                 "You can issue a 'fast_load' to finish loading.");
5397         }
5398
5399         image_close(&image);
5400
5401         if (retval != ERROR_OK)
5402                 free_fastload();
5403
5404         return retval;
5405 }
5406
5407 COMMAND_HANDLER(handle_fast_load_command)
5408 {
5409         if (CMD_ARGC > 0)
5410                 return ERROR_COMMAND_SYNTAX_ERROR;
5411         if (fastload == NULL) {
5412                 LOG_ERROR("No image in memory");
5413                 return ERROR_FAIL;
5414         }
5415         int i;
5416         int ms = timeval_ms();
5417         int size = 0;
5418         int retval = ERROR_OK;
5419         for (i = 0; i < fastload_num; i++) {
5420                 struct target *target = get_current_target(CMD_CTX);
5421                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5422                                           (unsigned int)(fastload[i].address),
5423                                           (unsigned int)(fastload[i].length));
5424                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5425                 if (retval != ERROR_OK)
5426                         break;
5427                 size += fastload[i].length;
5428         }
5429         if (retval == ERROR_OK) {
5430                 int after = timeval_ms();
5431                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5432         }
5433         return retval;
5434 }
5435
5436 static const struct command_registration target_command_handlers[] = {
5437         {
5438                 .name = "targets",
5439                 .handler = handle_targets_command,
5440                 .mode = COMMAND_ANY,
5441                 .help = "change current default target (one parameter) "
5442                         "or prints table of all targets (no parameters)",
5443                 .usage = "[target]",
5444         },
5445         {
5446                 .name = "target",
5447                 .mode = COMMAND_CONFIG,
5448                 .help = "configure target",
5449
5450                 .chain = target_subcommand_handlers,
5451         },
5452         COMMAND_REGISTRATION_DONE
5453 };
5454
5455 int target_register_commands(struct command_context *cmd_ctx)
5456 {
5457         return register_commands(cmd_ctx, NULL, target_command_handlers);
5458 }
5459
5460 static bool target_reset_nag = true;
5461
5462 bool get_target_reset_nag(void)
5463 {
5464         return target_reset_nag;
5465 }
5466
5467 COMMAND_HANDLER(handle_target_reset_nag)
5468 {
5469         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5470                         &target_reset_nag, "Nag after each reset about options to improve "
5471                         "performance");
5472 }
5473
5474 COMMAND_HANDLER(handle_ps_command)
5475 {
5476         struct target *target = get_current_target(CMD_CTX);
5477         char *display;
5478         if (target->state != TARGET_HALTED) {
5479                 LOG_INFO("target not halted !!");
5480                 return ERROR_OK;
5481         }
5482
5483         if ((target->rtos) && (target->rtos->type)
5484                         && (target->rtos->type->ps_command)) {
5485                 display = target->rtos->type->ps_command(target);
5486                 command_print(CMD_CTX, "%s", display);
5487                 free(display);
5488                 return ERROR_OK;
5489         } else {
5490                 LOG_INFO("failed");
5491                 return ERROR_TARGET_FAILURE;
5492         }
5493 }
5494
5495 static const struct command_registration target_exec_command_handlers[] = {
5496         {
5497                 .name = "fast_load_image",
5498                 .handler = handle_fast_load_image_command,
5499                 .mode = COMMAND_ANY,
5500                 .help = "Load image into server memory for later use by "
5501                         "fast_load; primarily for profiling",
5502                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5503                         "[min_address [max_length]]",
5504         },
5505         {
5506                 .name = "fast_load",
5507                 .handler = handle_fast_load_command,
5508                 .mode = COMMAND_EXEC,
5509                 .help = "loads active fast load image to current target "
5510                         "- mainly for profiling purposes",
5511                 .usage = "",
5512         },
5513         {
5514                 .name = "profile",
5515                 .handler = handle_profile_command,
5516                 .mode = COMMAND_EXEC,
5517                 .usage = "seconds filename",
5518                 .help = "profiling samples the CPU PC",
5519         },
5520         /** @todo don't register virt2phys() unless target supports it */
5521         {
5522                 .name = "virt2phys",
5523                 .handler = handle_virt2phys_command,
5524                 .mode = COMMAND_ANY,
5525                 .help = "translate a virtual address into a physical address",
5526                 .usage = "virtual_address",
5527         },
5528         {
5529                 .name = "reg",
5530                 .handler = handle_reg_command,
5531                 .mode = COMMAND_EXEC,
5532                 .help = "display or set a register; with no arguments, "
5533                         "displays all registers and their values",
5534                 .usage = "[(register_name|register_number) [value]]",
5535         },
5536         {
5537                 .name = "poll",
5538                 .handler = handle_poll_command,
5539                 .mode = COMMAND_EXEC,
5540                 .help = "poll target state; or reconfigure background polling",
5541                 .usage = "['on'|'off']",
5542         },
5543         {
5544                 .name = "wait_halt",
5545                 .handler = handle_wait_halt_command,
5546                 .mode = COMMAND_EXEC,
5547                 .help = "wait up to the specified number of milliseconds "
5548                         "(default 5) for a previously requested halt",
5549                 .usage = "[milliseconds]",
5550         },
5551         {
5552                 .name = "halt",
5553                 .handler = handle_halt_command,
5554                 .mode = COMMAND_EXEC,
5555                 .help = "request target to halt, then wait up to the specified"
5556                         "number of milliseconds (default 5) for it to complete",
5557                 .usage = "[milliseconds]",
5558         },
5559         {
5560                 .name = "resume",
5561                 .handler = handle_resume_command,
5562                 .mode = COMMAND_EXEC,
5563                 .help = "resume target execution from current PC or address",
5564                 .usage = "[address]",
5565         },
5566         {
5567                 .name = "reset",
5568                 .handler = handle_reset_command,
5569                 .mode = COMMAND_EXEC,
5570                 .usage = "[run|halt|init]",
5571                 .help = "Reset all targets into the specified mode."
5572                         "Default reset mode is run, if not given.",
5573         },
5574         {
5575                 .name = "soft_reset_halt",
5576                 .handler = handle_soft_reset_halt_command,
5577                 .mode = COMMAND_EXEC,
5578                 .usage = "",
5579                 .help = "halt the target and do a soft reset",
5580         },
5581         {
5582                 .name = "step",
5583                 .handler = handle_step_command,
5584                 .mode = COMMAND_EXEC,
5585                 .help = "step one instruction from current PC or address",
5586                 .usage = "[address]",
5587         },
5588         {
5589                 .name = "mdw",
5590                 .handler = handle_md_command,
5591                 .mode = COMMAND_EXEC,
5592                 .help = "display memory words",
5593                 .usage = "['phys'] address [count]",
5594         },
5595         {
5596                 .name = "mdh",
5597                 .handler = handle_md_command,
5598                 .mode = COMMAND_EXEC,
5599                 .help = "display memory half-words",
5600                 .usage = "['phys'] address [count]",
5601         },
5602         {
5603                 .name = "mdb",
5604                 .handler = handle_md_command,
5605                 .mode = COMMAND_EXEC,
5606                 .help = "display memory bytes",
5607                 .usage = "['phys'] address [count]",
5608         },
5609         {
5610                 .name = "mww",
5611                 .handler = handle_mw_command,
5612                 .mode = COMMAND_EXEC,
5613                 .help = "write memory word",
5614                 .usage = "['phys'] address value [count]",
5615         },
5616         {
5617                 .name = "mwh",
5618                 .handler = handle_mw_command,
5619                 .mode = COMMAND_EXEC,
5620                 .help = "write memory half-word",
5621                 .usage = "['phys'] address value [count]",
5622         },
5623         {
5624                 .name = "mwb",
5625                 .handler = handle_mw_command,
5626                 .mode = COMMAND_EXEC,
5627                 .help = "write memory byte",
5628                 .usage = "['phys'] address value [count]",
5629         },
5630         {
5631                 .name = "bp",
5632                 .handler = handle_bp_command,
5633                 .mode = COMMAND_EXEC,
5634                 .help = "list or set hardware or software breakpoint",
5635                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5636         },
5637         {
5638                 .name = "rbp",
5639                 .handler = handle_rbp_command,
5640                 .mode = COMMAND_EXEC,
5641                 .help = "remove breakpoint",
5642                 .usage = "address",
5643         },
5644         {
5645                 .name = "wp",
5646                 .handler = handle_wp_command,
5647                 .mode = COMMAND_EXEC,
5648                 .help = "list (no params) or create watchpoints",
5649                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5650         },
5651         {
5652                 .name = "rwp",
5653                 .handler = handle_rwp_command,
5654                 .mode = COMMAND_EXEC,
5655                 .help = "remove watchpoint",
5656                 .usage = "address",
5657         },
5658         {
5659                 .name = "load_image",
5660                 .handler = handle_load_image_command,
5661                 .mode = COMMAND_EXEC,
5662                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5663                         "[min_address] [max_length]",
5664         },
5665         {
5666                 .name = "dump_image",
5667                 .handler = handle_dump_image_command,
5668                 .mode = COMMAND_EXEC,
5669                 .usage = "filename address size",
5670         },
5671         {
5672                 .name = "verify_image",
5673                 .handler = handle_verify_image_command,
5674                 .mode = COMMAND_EXEC,
5675                 .usage = "filename [offset [type]]",
5676         },
5677         {
5678                 .name = "test_image",
5679                 .handler = handle_test_image_command,
5680                 .mode = COMMAND_EXEC,
5681                 .usage = "filename [offset [type]]",
5682         },
5683         {
5684                 .name = "mem2array",
5685                 .mode = COMMAND_EXEC,
5686                 .jim_handler = jim_mem2array,
5687                 .help = "read 8/16/32 bit memory and return as a TCL array "
5688                         "for script processing",
5689                 .usage = "arrayname bitwidth address count",
5690         },
5691         {
5692                 .name = "array2mem",
5693                 .mode = COMMAND_EXEC,
5694                 .jim_handler = jim_array2mem,
5695                 .help = "convert a TCL array to memory locations "
5696                         "and write the 8/16/32 bit values",
5697                 .usage = "arrayname bitwidth address count",
5698         },
5699         {
5700                 .name = "reset_nag",
5701                 .handler = handle_target_reset_nag,
5702                 .mode = COMMAND_ANY,
5703                 .help = "Nag after each reset about options that could have been "
5704                                 "enabled to improve performance. ",
5705                 .usage = "['enable'|'disable']",
5706         },
5707         {
5708                 .name = "ps",
5709                 .handler = handle_ps_command,
5710                 .mode = COMMAND_EXEC,
5711                 .help = "list all tasks ",
5712                 .usage = " ",
5713         },
5714
5715         COMMAND_REGISTRATION_DONE
5716 };
5717 static int target_register_user_commands(struct command_context *cmd_ctx)
5718 {
5719         int retval = ERROR_OK;
5720         retval = target_request_register_commands(cmd_ctx);
5721         if (retval != ERROR_OK)
5722                 return retval;
5723
5724         retval = trace_register_commands(cmd_ctx);
5725         if (retval != ERROR_OK)
5726                 return retval;
5727
5728
5729         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5730 }