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 static int backoff_times;
2168 static int backoff_count;
2169
2170 /* process target state changes */
2171 static int handle_target(void *priv)
2172 {
2173         Jim_Interp *interp = (Jim_Interp *)priv;
2174         int retval = ERROR_OK;
2175
2176         if (!is_jtag_poll_safe()) {
2177                 /* polling is disabled currently */
2178                 return ERROR_OK;
2179         }
2180
2181         /* we do not want to recurse here... */
2182         static int recursive;
2183         if (!recursive) {
2184                 recursive = 1;
2185                 sense_handler();
2186                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2187                  * We need to avoid an infinite loop/recursion here and we do that by
2188                  * clearing the flags after running these events.
2189                  */
2190                 int did_something = 0;
2191                 if (runSrstAsserted) {
2192                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2193                         Jim_Eval(interp, "srst_asserted");
2194                         did_something = 1;
2195                 }
2196                 if (runSrstDeasserted) {
2197                         Jim_Eval(interp, "srst_deasserted");
2198                         did_something = 1;
2199                 }
2200                 if (runPowerDropout) {
2201                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2202                         Jim_Eval(interp, "power_dropout");
2203                         did_something = 1;
2204                 }
2205                 if (runPowerRestore) {
2206                         Jim_Eval(interp, "power_restore");
2207                         did_something = 1;
2208                 }
2209
2210                 if (did_something) {
2211                         /* clear detect flags */
2212                         sense_handler();
2213                 }
2214
2215                 /* clear action flags */
2216
2217                 runSrstAsserted = 0;
2218                 runSrstDeasserted = 0;
2219                 runPowerRestore = 0;
2220                 runPowerDropout = 0;
2221
2222                 recursive = 0;
2223         }
2224
2225         if (backoff_times > backoff_count) {
2226                 /* do not poll this time as we failed previously */
2227                 backoff_count++;
2228                 return ERROR_OK;
2229         }
2230         backoff_count = 0;
2231
2232         /* Poll targets for state changes unless that's globally disabled.
2233          * Skip targets that are currently disabled.
2234          */
2235         for (struct target *target = all_targets;
2236                         is_jtag_poll_safe() && target;
2237                         target = target->next) {
2238                 if (!target->tap->enabled)
2239                         continue;
2240
2241                 /* only poll target if we've got power and srst isn't asserted */
2242                 if (!powerDropout && !srstAsserted) {
2243                         /* polling may fail silently until the target has been examined */
2244                         retval = target_poll(target);
2245                         if (retval != ERROR_OK) {
2246                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2247                                 if (backoff_times * polling_interval < 5000) {
2248                                         backoff_times *= 2;
2249                                         backoff_times++;
2250                                 }
2251                                 LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms",
2252                                                 target_name(target),
2253                                                 backoff_times * polling_interval);
2254
2255                                 /* Tell GDB to halt the debugger. This allows the user to
2256                                  * run monitor commands to handle the situation.
2257                                  */
2258                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2259                                 return retval;
2260                         }
2261                         /* Since we succeeded, we reset backoff count */
2262                         if (backoff_times > 0)
2263                                 LOG_USER("Polling target %s succeeded again", target_name(target));
2264                         backoff_times = 0;
2265                 }
2266         }
2267
2268         return retval;
2269 }
2270
2271 COMMAND_HANDLER(handle_reg_command)
2272 {
2273         struct target *target;
2274         struct reg *reg = NULL;
2275         unsigned count = 0;
2276         char *value;
2277
2278         LOG_DEBUG("-");
2279
2280         target = get_current_target(CMD_CTX);
2281
2282         /* list all available registers for the current target */
2283         if (CMD_ARGC == 0) {
2284                 struct reg_cache *cache = target->reg_cache;
2285
2286                 count = 0;
2287                 while (cache) {
2288                         unsigned i;
2289
2290                         command_print(CMD_CTX, "===== %s", cache->name);
2291
2292                         for (i = 0, reg = cache->reg_list;
2293                                         i < cache->num_regs;
2294                                         i++, reg++, count++) {
2295                                 /* only print cached values if they are valid */
2296                                 if (reg->valid) {
2297                                         value = buf_to_str(reg->value,
2298                                                         reg->size, 16);
2299                                         command_print(CMD_CTX,
2300                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2301                                                         count, reg->name,
2302                                                         reg->size, value,
2303                                                         reg->dirty
2304                                                                 ? " (dirty)"
2305                                                                 : "");
2306                                         free(value);
2307                                 } else {
2308                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2309                                                           count, reg->name,
2310                                                           reg->size) ;
2311                                 }
2312                         }
2313                         cache = cache->next;
2314                 }
2315
2316                 return ERROR_OK;
2317         }
2318
2319         /* access a single register by its ordinal number */
2320         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2321                 unsigned num;
2322                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2323
2324                 struct reg_cache *cache = target->reg_cache;
2325                 count = 0;
2326                 while (cache) {
2327                         unsigned i;
2328                         for (i = 0; i < cache->num_regs; i++) {
2329                                 if (count++ == num) {
2330                                         reg = &cache->reg_list[i];
2331                                         break;
2332                                 }
2333                         }
2334                         if (reg)
2335                                 break;
2336                         cache = cache->next;
2337                 }
2338
2339                 if (!reg) {
2340                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2341                                         "has only %i registers (0 - %i)", num, count, count - 1);
2342                         return ERROR_OK;
2343                 }
2344         } else {
2345                 /* access a single register by its name */
2346                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2347
2348                 if (!reg) {
2349                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2350                         return ERROR_OK;
2351                 }
2352         }
2353
2354         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2355
2356         /* display a register */
2357         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2358                         && (CMD_ARGV[1][0] <= '9')))) {
2359                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2360                         reg->valid = 0;
2361
2362                 if (reg->valid == 0)
2363                         reg->type->get(reg);
2364                 value = buf_to_str(reg->value, reg->size, 16);
2365                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2366                 free(value);
2367                 return ERROR_OK;
2368         }
2369
2370         /* set register value */
2371         if (CMD_ARGC == 2) {
2372                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2373                 if (buf == NULL)
2374                         return ERROR_FAIL;
2375                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2376
2377                 reg->type->set(reg, buf);
2378
2379                 value = buf_to_str(reg->value, reg->size, 16);
2380                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2381                 free(value);
2382
2383                 free(buf);
2384
2385                 return ERROR_OK;
2386         }
2387
2388         return ERROR_COMMAND_SYNTAX_ERROR;
2389 }
2390
2391 COMMAND_HANDLER(handle_poll_command)
2392 {
2393         int retval = ERROR_OK;
2394         struct target *target = get_current_target(CMD_CTX);
2395
2396         if (CMD_ARGC == 0) {
2397                 command_print(CMD_CTX, "background polling: %s",
2398                                 jtag_poll_get_enabled() ? "on" : "off");
2399                 command_print(CMD_CTX, "TAP: %s (%s)",
2400                                 target->tap->dotted_name,
2401                                 target->tap->enabled ? "enabled" : "disabled");
2402                 if (!target->tap->enabled)
2403                         return ERROR_OK;
2404                 retval = target_poll(target);
2405                 if (retval != ERROR_OK)
2406                         return retval;
2407                 retval = target_arch_state(target);
2408                 if (retval != ERROR_OK)
2409                         return retval;
2410         } else if (CMD_ARGC == 1) {
2411                 bool enable;
2412                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2413                 jtag_poll_set_enabled(enable);
2414         } else
2415                 return ERROR_COMMAND_SYNTAX_ERROR;
2416
2417         return retval;
2418 }
2419
2420 COMMAND_HANDLER(handle_wait_halt_command)
2421 {
2422         if (CMD_ARGC > 1)
2423                 return ERROR_COMMAND_SYNTAX_ERROR;
2424
2425         unsigned ms = 5000;
2426         if (1 == CMD_ARGC) {
2427                 int retval = parse_uint(CMD_ARGV[0], &ms);
2428                 if (ERROR_OK != retval)
2429                         return ERROR_COMMAND_SYNTAX_ERROR;
2430                 /* convert seconds (given) to milliseconds (needed) */
2431                 ms *= 1000;
2432         }
2433
2434         struct target *target = get_current_target(CMD_CTX);
2435         return target_wait_state(target, TARGET_HALTED, ms);
2436 }
2437
2438 /* wait for target state to change. The trick here is to have a low
2439  * latency for short waits and not to suck up all the CPU time
2440  * on longer waits.
2441  *
2442  * After 500ms, keep_alive() is invoked
2443  */
2444 int target_wait_state(struct target *target, enum target_state state, int ms)
2445 {
2446         int retval;
2447         long long then = 0, cur;
2448         int once = 1;
2449
2450         for (;;) {
2451                 retval = target_poll(target);
2452                 if (retval != ERROR_OK)
2453                         return retval;
2454                 if (target->state == state)
2455                         break;
2456                 cur = timeval_ms();
2457                 if (once) {
2458                         once = 0;
2459                         then = timeval_ms();
2460                         LOG_DEBUG("waiting for target %s...",
2461                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2462                 }
2463
2464                 if (cur-then > 500)
2465                         keep_alive();
2466
2467                 if ((cur-then) > ms) {
2468                         LOG_ERROR("timed out while waiting for target %s",
2469                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2470                         return ERROR_FAIL;
2471                 }
2472         }
2473
2474         return ERROR_OK;
2475 }
2476
2477 COMMAND_HANDLER(handle_halt_command)
2478 {
2479         LOG_DEBUG("-");
2480
2481         struct target *target = get_current_target(CMD_CTX);
2482         int retval = target_halt(target);
2483         if (ERROR_OK != retval)
2484                 return retval;
2485
2486         if (CMD_ARGC == 1) {
2487                 unsigned wait_local;
2488                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2489                 if (ERROR_OK != retval)
2490                         return ERROR_COMMAND_SYNTAX_ERROR;
2491                 if (!wait_local)
2492                         return ERROR_OK;
2493         }
2494
2495         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2496 }
2497
2498 COMMAND_HANDLER(handle_soft_reset_halt_command)
2499 {
2500         struct target *target = get_current_target(CMD_CTX);
2501
2502         LOG_USER("requesting target halt and executing a soft reset");
2503
2504         target->type->soft_reset_halt(target);
2505
2506         return ERROR_OK;
2507 }
2508
2509 COMMAND_HANDLER(handle_reset_command)
2510 {
2511         if (CMD_ARGC > 1)
2512                 return ERROR_COMMAND_SYNTAX_ERROR;
2513
2514         enum target_reset_mode reset_mode = RESET_RUN;
2515         if (CMD_ARGC == 1) {
2516                 const Jim_Nvp *n;
2517                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2518                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2519                         return ERROR_COMMAND_SYNTAX_ERROR;
2520                 reset_mode = n->value;
2521         }
2522
2523         /* reset *all* targets */
2524         return target_process_reset(CMD_CTX, reset_mode);
2525 }
2526
2527
2528 COMMAND_HANDLER(handle_resume_command)
2529 {
2530         int current = 1;
2531         if (CMD_ARGC > 1)
2532                 return ERROR_COMMAND_SYNTAX_ERROR;
2533
2534         struct target *target = get_current_target(CMD_CTX);
2535
2536         /* with no CMD_ARGV, resume from current pc, addr = 0,
2537          * with one arguments, addr = CMD_ARGV[0],
2538          * handle breakpoints, not debugging */
2539         uint32_t addr = 0;
2540         if (CMD_ARGC == 1) {
2541                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2542                 current = 0;
2543         }
2544
2545         return target_resume(target, current, addr, 1, 0);
2546 }
2547
2548 COMMAND_HANDLER(handle_step_command)
2549 {
2550         if (CMD_ARGC > 1)
2551                 return ERROR_COMMAND_SYNTAX_ERROR;
2552
2553         LOG_DEBUG("-");
2554
2555         /* with no CMD_ARGV, step from current pc, addr = 0,
2556          * with one argument addr = CMD_ARGV[0],
2557          * handle breakpoints, debugging */
2558         uint32_t addr = 0;
2559         int current_pc = 1;
2560         if (CMD_ARGC == 1) {
2561                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2562                 current_pc = 0;
2563         }
2564
2565         struct target *target = get_current_target(CMD_CTX);
2566
2567         return target->type->step(target, current_pc, addr, 1);
2568 }
2569
2570 static void handle_md_output(struct command_context *cmd_ctx,
2571                 struct target *target, uint32_t address, unsigned size,
2572                 unsigned count, const uint8_t *buffer)
2573 {
2574         const unsigned line_bytecnt = 32;
2575         unsigned line_modulo = line_bytecnt / size;
2576
2577         char output[line_bytecnt * 4 + 1];
2578         unsigned output_len = 0;
2579
2580         const char *value_fmt;
2581         switch (size) {
2582         case 4:
2583                 value_fmt = "%8.8x ";
2584                 break;
2585         case 2:
2586                 value_fmt = "%4.4x ";
2587                 break;
2588         case 1:
2589                 value_fmt = "%2.2x ";
2590                 break;
2591         default:
2592                 /* "can't happen", caller checked */
2593                 LOG_ERROR("invalid memory read size: %u", size);
2594                 return;
2595         }
2596
2597         for (unsigned i = 0; i < count; i++) {
2598                 if (i % line_modulo == 0) {
2599                         output_len += snprintf(output + output_len,
2600                                         sizeof(output) - output_len,
2601                                         "0x%8.8x: ",
2602                                         (unsigned)(address + (i*size)));
2603                 }
2604
2605                 uint32_t value = 0;
2606                 const uint8_t *value_ptr = buffer + i * size;
2607                 switch (size) {
2608                 case 4:
2609                         value = target_buffer_get_u32(target, value_ptr);
2610                         break;
2611                 case 2:
2612                         value = target_buffer_get_u16(target, value_ptr);
2613                         break;
2614                 case 1:
2615                         value = *value_ptr;
2616                 }
2617                 output_len += snprintf(output + output_len,
2618                                 sizeof(output) - output_len,
2619                                 value_fmt, value);
2620
2621                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2622                         command_print(cmd_ctx, "%s", output);
2623                         output_len = 0;
2624                 }
2625         }
2626 }
2627
2628 COMMAND_HANDLER(handle_md_command)
2629 {
2630         if (CMD_ARGC < 1)
2631                 return ERROR_COMMAND_SYNTAX_ERROR;
2632
2633         unsigned size = 0;
2634         switch (CMD_NAME[2]) {
2635         case 'w':
2636                 size = 4;
2637                 break;
2638         case 'h':
2639                 size = 2;
2640                 break;
2641         case 'b':
2642                 size = 1;
2643                 break;
2644         default:
2645                 return ERROR_COMMAND_SYNTAX_ERROR;
2646         }
2647
2648         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2649         int (*fn)(struct target *target,
2650                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2651         if (physical) {
2652                 CMD_ARGC--;
2653                 CMD_ARGV++;
2654                 fn = target_read_phys_memory;
2655         } else
2656                 fn = target_read_memory;
2657         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2658                 return ERROR_COMMAND_SYNTAX_ERROR;
2659
2660         uint32_t address;
2661         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2662
2663         unsigned count = 1;
2664         if (CMD_ARGC == 2)
2665                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2666
2667         uint8_t *buffer = calloc(count, size);
2668
2669         struct target *target = get_current_target(CMD_CTX);
2670         int retval = fn(target, address, size, count, buffer);
2671         if (ERROR_OK == retval)
2672                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2673
2674         free(buffer);
2675
2676         return retval;
2677 }
2678
2679 typedef int (*target_write_fn)(struct target *target,
2680                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2681
2682 static int target_write_memory_fast(struct target *target,
2683                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2684 {
2685         return target_write_buffer(target, address, size * count, buffer);
2686 }
2687
2688 static int target_fill_mem(struct target *target,
2689                 uint32_t address,
2690                 target_write_fn fn,
2691                 unsigned data_size,
2692                 /* value */
2693                 uint32_t b,
2694                 /* count */
2695                 unsigned c)
2696 {
2697         /* We have to write in reasonably large chunks to be able
2698          * to fill large memory areas with any sane speed */
2699         const unsigned chunk_size = 16384;
2700         uint8_t *target_buf = malloc(chunk_size * data_size);
2701         if (target_buf == NULL) {
2702                 LOG_ERROR("Out of memory");
2703                 return ERROR_FAIL;
2704         }
2705
2706         for (unsigned i = 0; i < chunk_size; i++) {
2707                 switch (data_size) {
2708                 case 4:
2709                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2710                         break;
2711                 case 2:
2712                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2713                         break;
2714                 case 1:
2715                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2716                         break;
2717                 default:
2718                         exit(-1);
2719                 }
2720         }
2721
2722         int retval = ERROR_OK;
2723
2724         for (unsigned x = 0; x < c; x += chunk_size) {
2725                 unsigned current;
2726                 current = c - x;
2727                 if (current > chunk_size)
2728                         current = chunk_size;
2729                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2730                 if (retval != ERROR_OK)
2731                         break;
2732                 /* avoid GDB timeouts */
2733                 keep_alive();
2734         }
2735         free(target_buf);
2736
2737         return retval;
2738 }
2739
2740
2741 COMMAND_HANDLER(handle_mw_command)
2742 {
2743         if (CMD_ARGC < 2)
2744                 return ERROR_COMMAND_SYNTAX_ERROR;
2745         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2746         target_write_fn fn;
2747         if (physical) {
2748                 CMD_ARGC--;
2749                 CMD_ARGV++;
2750                 fn = target_write_phys_memory;
2751         } else
2752                 fn = target_write_memory_fast;
2753         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2754                 return ERROR_COMMAND_SYNTAX_ERROR;
2755
2756         uint32_t address;
2757         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2758
2759         uint32_t value;
2760         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2761
2762         unsigned count = 1;
2763         if (CMD_ARGC == 3)
2764                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2765
2766         struct target *target = get_current_target(CMD_CTX);
2767         unsigned wordsize;
2768         switch (CMD_NAME[2]) {
2769                 case 'w':
2770                         wordsize = 4;
2771                         break;
2772                 case 'h':
2773                         wordsize = 2;
2774                         break;
2775                 case 'b':
2776                         wordsize = 1;
2777                         break;
2778                 default:
2779                         return ERROR_COMMAND_SYNTAX_ERROR;
2780         }
2781
2782         return target_fill_mem(target, address, fn, wordsize, value, count);
2783 }
2784
2785 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2786                 uint32_t *min_address, uint32_t *max_address)
2787 {
2788         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2789                 return ERROR_COMMAND_SYNTAX_ERROR;
2790
2791         /* a base address isn't always necessary,
2792          * default to 0x0 (i.e. don't relocate) */
2793         if (CMD_ARGC >= 2) {
2794                 uint32_t addr;
2795                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2796                 image->base_address = addr;
2797                 image->base_address_set = 1;
2798         } else
2799                 image->base_address_set = 0;
2800
2801         image->start_address_set = 0;
2802
2803         if (CMD_ARGC >= 4)
2804                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2805         if (CMD_ARGC == 5) {
2806                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2807                 /* use size (given) to find max (required) */
2808                 *max_address += *min_address;
2809         }
2810
2811         if (*min_address > *max_address)
2812                 return ERROR_COMMAND_SYNTAX_ERROR;
2813
2814         return ERROR_OK;
2815 }
2816
2817 COMMAND_HANDLER(handle_load_image_command)
2818 {
2819         uint8_t *buffer;
2820         size_t buf_cnt;
2821         uint32_t image_size;
2822         uint32_t min_address = 0;
2823         uint32_t max_address = 0xffffffff;
2824         int i;
2825         struct image image;
2826
2827         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2828                         &image, &min_address, &max_address);
2829         if (ERROR_OK != retval)
2830                 return retval;
2831
2832         struct target *target = get_current_target(CMD_CTX);
2833
2834         struct duration bench;
2835         duration_start(&bench);
2836
2837         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2838                 return ERROR_OK;
2839
2840         image_size = 0x0;
2841         retval = ERROR_OK;
2842         for (i = 0; i < image.num_sections; i++) {
2843                 buffer = malloc(image.sections[i].size);
2844                 if (buffer == NULL) {
2845                         command_print(CMD_CTX,
2846                                                   "error allocating buffer for section (%d bytes)",
2847                                                   (int)(image.sections[i].size));
2848                         break;
2849                 }
2850
2851                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2852                 if (retval != ERROR_OK) {
2853                         free(buffer);
2854                         break;
2855                 }
2856
2857                 uint32_t offset = 0;
2858                 uint32_t length = buf_cnt;
2859
2860                 /* DANGER!!! beware of unsigned comparision here!!! */
2861
2862                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2863                                 (image.sections[i].base_address < max_address)) {
2864
2865                         if (image.sections[i].base_address < min_address) {
2866                                 /* clip addresses below */
2867                                 offset += min_address-image.sections[i].base_address;
2868                                 length -= offset;
2869                         }
2870
2871                         if (image.sections[i].base_address + buf_cnt > max_address)
2872                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2873
2874                         retval = target_write_buffer(target,
2875                                         image.sections[i].base_address + offset, length, buffer + offset);
2876                         if (retval != ERROR_OK) {
2877                                 free(buffer);
2878                                 break;
2879                         }
2880                         image_size += length;
2881                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2882                                         (unsigned int)length,
2883                                         image.sections[i].base_address + offset);
2884                 }
2885
2886                 free(buffer);
2887         }
2888
2889         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2890                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2891                                 "in %fs (%0.3f KiB/s)", image_size,
2892                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2893         }
2894
2895         image_close(&image);
2896
2897         return retval;
2898
2899 }
2900
2901 COMMAND_HANDLER(handle_dump_image_command)
2902 {
2903         struct fileio fileio;
2904         uint8_t *buffer;
2905         int retval, retvaltemp;
2906         uint32_t address, size;
2907         struct duration bench;
2908         struct target *target = get_current_target(CMD_CTX);
2909
2910         if (CMD_ARGC != 3)
2911                 return ERROR_COMMAND_SYNTAX_ERROR;
2912
2913         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2914         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2915
2916         uint32_t buf_size = (size > 4096) ? 4096 : size;
2917         buffer = malloc(buf_size);
2918         if (!buffer)
2919                 return ERROR_FAIL;
2920
2921         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2922         if (retval != ERROR_OK) {
2923                 free(buffer);
2924                 return retval;
2925         }
2926
2927         duration_start(&bench);
2928
2929         while (size > 0) {
2930                 size_t size_written;
2931                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2932                 retval = target_read_buffer(target, address, this_run_size, buffer);
2933                 if (retval != ERROR_OK)
2934                         break;
2935
2936                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2937                 if (retval != ERROR_OK)
2938                         break;
2939
2940                 size -= this_run_size;
2941                 address += this_run_size;
2942         }
2943
2944         free(buffer);
2945
2946         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2947                 int filesize;
2948                 retval = fileio_size(&fileio, &filesize);
2949                 if (retval != ERROR_OK)
2950                         return retval;
2951                 command_print(CMD_CTX,
2952                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2953                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2954         }
2955
2956         retvaltemp = fileio_close(&fileio);
2957         if (retvaltemp != ERROR_OK)
2958                 return retvaltemp;
2959
2960         return retval;
2961 }
2962
2963 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2964 {
2965         uint8_t *buffer;
2966         size_t buf_cnt;
2967         uint32_t image_size;
2968         int i;
2969         int retval;
2970         uint32_t checksum = 0;
2971         uint32_t mem_checksum = 0;
2972
2973         struct image image;
2974
2975         struct target *target = get_current_target(CMD_CTX);
2976
2977         if (CMD_ARGC < 1)
2978                 return ERROR_COMMAND_SYNTAX_ERROR;
2979
2980         if (!target) {
2981                 LOG_ERROR("no target selected");
2982                 return ERROR_FAIL;
2983         }
2984
2985         struct duration bench;
2986         duration_start(&bench);
2987
2988         if (CMD_ARGC >= 2) {
2989                 uint32_t addr;
2990                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2991                 image.base_address = addr;
2992                 image.base_address_set = 1;
2993         } else {
2994                 image.base_address_set = 0;
2995                 image.base_address = 0x0;
2996         }
2997
2998         image.start_address_set = 0;
2999
3000         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3001         if (retval != ERROR_OK)
3002                 return retval;
3003
3004         image_size = 0x0;
3005         int diffs = 0;
3006         retval = ERROR_OK;
3007         for (i = 0; i < image.num_sections; i++) {
3008                 buffer = malloc(image.sections[i].size);
3009                 if (buffer == NULL) {
3010                         command_print(CMD_CTX,
3011                                         "error allocating buffer for section (%d bytes)",
3012                                         (int)(image.sections[i].size));
3013                         break;
3014                 }
3015                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3016                 if (retval != ERROR_OK) {
3017                         free(buffer);
3018                         break;
3019                 }
3020
3021                 if (verify) {
3022                         /* calculate checksum of image */
3023                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3024                         if (retval != ERROR_OK) {
3025                                 free(buffer);
3026                                 break;
3027                         }
3028
3029                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3030                         if (retval != ERROR_OK) {
3031                                 free(buffer);
3032                                 break;
3033                         }
3034
3035                         if (checksum != mem_checksum) {
3036                                 /* failed crc checksum, fall back to a binary compare */
3037                                 uint8_t *data;
3038
3039                                 if (diffs == 0)
3040                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3041
3042                                 data = (uint8_t *)malloc(buf_cnt);
3043
3044                                 /* Can we use 32bit word accesses? */
3045                                 int size = 1;
3046                                 int count = buf_cnt;
3047                                 if ((count % 4) == 0) {
3048                                         size *= 4;
3049                                         count /= 4;
3050                                 }
3051                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3052                                 if (retval == ERROR_OK) {
3053                                         uint32_t t;
3054                                         for (t = 0; t < buf_cnt; t++) {
3055                                                 if (data[t] != buffer[t]) {
3056                                                         command_print(CMD_CTX,
3057                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3058                                                                                   diffs,
3059                                                                                   (unsigned)(t + image.sections[i].base_address),
3060                                                                                   data[t],
3061                                                                                   buffer[t]);
3062                                                         if (diffs++ >= 127) {
3063                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3064                                                                 free(data);
3065                                                                 free(buffer);
3066                                                                 goto done;
3067                                                         }
3068                                                 }
3069                                                 keep_alive();
3070                                         }
3071                                 }
3072                                 free(data);
3073                         }
3074                 } else {
3075                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3076                                                   image.sections[i].base_address,
3077                                                   buf_cnt);
3078                 }
3079
3080                 free(buffer);
3081                 image_size += buf_cnt;
3082         }
3083         if (diffs > 0)
3084                 command_print(CMD_CTX, "No more differences found.");
3085 done:
3086         if (diffs > 0)
3087                 retval = ERROR_FAIL;
3088         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3089                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3090                                 "in %fs (%0.3f KiB/s)", image_size,
3091                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3092         }
3093
3094         image_close(&image);
3095
3096         return retval;
3097 }
3098
3099 COMMAND_HANDLER(handle_verify_image_command)
3100 {
3101         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3102 }
3103
3104 COMMAND_HANDLER(handle_test_image_command)
3105 {
3106         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3107 }
3108
3109 static int handle_bp_command_list(struct command_context *cmd_ctx)
3110 {
3111         struct target *target = get_current_target(cmd_ctx);
3112         struct breakpoint *breakpoint = target->breakpoints;
3113         while (breakpoint) {
3114                 if (breakpoint->type == BKPT_SOFT) {
3115                         char *buf = buf_to_str(breakpoint->orig_instr,
3116                                         breakpoint->length, 16);
3117                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3118                                         breakpoint->address,
3119                                         breakpoint->length,
3120                                         breakpoint->set, buf);
3121                         free(buf);
3122                 } else {
3123                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3124                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3125                                                         breakpoint->asid,
3126                                                         breakpoint->length, breakpoint->set);
3127                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3128                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3129                                                         breakpoint->address,
3130                                                         breakpoint->length, breakpoint->set);
3131                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3132                                                         breakpoint->asid);
3133                         } else
3134                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3135                                                         breakpoint->address,
3136                                                         breakpoint->length, breakpoint->set);
3137                 }
3138
3139                 breakpoint = breakpoint->next;
3140         }
3141         return ERROR_OK;
3142 }
3143
3144 static int handle_bp_command_set(struct command_context *cmd_ctx,
3145                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3146 {
3147         struct target *target = get_current_target(cmd_ctx);
3148
3149         if (asid == 0) {
3150                 int retval = breakpoint_add(target, addr, length, hw);
3151                 if (ERROR_OK == retval)
3152                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3153                 else {
3154                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3155                         return retval;
3156                 }
3157         } else if (addr == 0) {
3158                 int retval = context_breakpoint_add(target, asid, length, hw);
3159                 if (ERROR_OK == retval)
3160                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3161                 else {
3162                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3163                         return retval;
3164                 }
3165         } else {
3166                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3167                 if (ERROR_OK == retval)
3168                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3169                 else {
3170                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3171                         return retval;
3172                 }
3173         }
3174         return ERROR_OK;
3175 }
3176
3177 COMMAND_HANDLER(handle_bp_command)
3178 {
3179         uint32_t addr;
3180         uint32_t asid;
3181         uint32_t length;
3182         int hw = BKPT_SOFT;
3183
3184         switch (CMD_ARGC) {
3185                 case 0:
3186                         return handle_bp_command_list(CMD_CTX);
3187
3188                 case 2:
3189                         asid = 0;
3190                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3191                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3192                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3193
3194                 case 3:
3195                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3196                                 hw = BKPT_HARD;
3197                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3198
3199                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3200
3201                                 asid = 0;
3202                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3203                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3204                                 hw = BKPT_HARD;
3205                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3206                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3207                                 addr = 0;
3208                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3209                         }
3210
3211                 case 4:
3212                         hw = BKPT_HARD;
3213                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3214                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3215                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3216                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3217
3218                 default:
3219                         return ERROR_COMMAND_SYNTAX_ERROR;
3220         }
3221 }
3222
3223 COMMAND_HANDLER(handle_rbp_command)
3224 {
3225         if (CMD_ARGC != 1)
3226                 return ERROR_COMMAND_SYNTAX_ERROR;
3227
3228         uint32_t addr;
3229         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3230
3231         struct target *target = get_current_target(CMD_CTX);
3232         breakpoint_remove(target, addr);
3233
3234         return ERROR_OK;
3235 }
3236
3237 COMMAND_HANDLER(handle_wp_command)
3238 {
3239         struct target *target = get_current_target(CMD_CTX);
3240
3241         if (CMD_ARGC == 0) {
3242                 struct watchpoint *watchpoint = target->watchpoints;
3243
3244                 while (watchpoint) {
3245                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3246                                         ", len: 0x%8.8" PRIx32
3247                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3248                                         ", mask: 0x%8.8" PRIx32,
3249                                         watchpoint->address,
3250                                         watchpoint->length,
3251                                         (int)watchpoint->rw,
3252                                         watchpoint->value,
3253                                         watchpoint->mask);
3254                         watchpoint = watchpoint->next;
3255                 }
3256                 return ERROR_OK;
3257         }
3258
3259         enum watchpoint_rw type = WPT_ACCESS;
3260         uint32_t addr = 0;
3261         uint32_t length = 0;
3262         uint32_t data_value = 0x0;
3263         uint32_t data_mask = 0xffffffff;
3264
3265         switch (CMD_ARGC) {
3266         case 5:
3267                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3268                 /* fall through */
3269         case 4:
3270                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3271                 /* fall through */
3272         case 3:
3273                 switch (CMD_ARGV[2][0]) {
3274                 case 'r':
3275                         type = WPT_READ;
3276                         break;
3277                 case 'w':
3278                         type = WPT_WRITE;
3279                         break;
3280                 case 'a':
3281                         type = WPT_ACCESS;
3282                         break;
3283                 default:
3284                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3285                         return ERROR_COMMAND_SYNTAX_ERROR;
3286                 }
3287                 /* fall through */
3288         case 2:
3289                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3290                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3291                 break;
3292
3293         default:
3294                 return ERROR_COMMAND_SYNTAX_ERROR;
3295         }
3296
3297         int retval = watchpoint_add(target, addr, length, type,
3298                         data_value, data_mask);
3299         if (ERROR_OK != retval)
3300                 LOG_ERROR("Failure setting watchpoints");
3301
3302         return retval;
3303 }
3304
3305 COMMAND_HANDLER(handle_rwp_command)
3306 {
3307         if (CMD_ARGC != 1)
3308                 return ERROR_COMMAND_SYNTAX_ERROR;
3309
3310         uint32_t addr;
3311         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3312
3313         struct target *target = get_current_target(CMD_CTX);
3314         watchpoint_remove(target, addr);
3315
3316         return ERROR_OK;
3317 }
3318
3319 /**
3320  * Translate a virtual address to a physical address.
3321  *
3322  * The low-level target implementation must have logged a detailed error
3323  * which is forwarded to telnet/GDB session.
3324  */
3325 COMMAND_HANDLER(handle_virt2phys_command)
3326 {
3327         if (CMD_ARGC != 1)
3328                 return ERROR_COMMAND_SYNTAX_ERROR;
3329
3330         uint32_t va;
3331         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3332         uint32_t pa;
3333
3334         struct target *target = get_current_target(CMD_CTX);
3335         int retval = target->type->virt2phys(target, va, &pa);
3336         if (retval == ERROR_OK)
3337                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3338
3339         return retval;
3340 }
3341
3342 static void writeData(FILE *f, const void *data, size_t len)
3343 {
3344         size_t written = fwrite(data, 1, len, f);
3345         if (written != len)
3346                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3347 }
3348
3349 static void writeLong(FILE *f, int l)
3350 {
3351         int i;
3352         for (i = 0; i < 4; i++) {
3353                 char c = (l >> (i*8))&0xff;
3354                 writeData(f, &c, 1);
3355         }
3356
3357 }
3358
3359 static void writeString(FILE *f, char *s)
3360 {
3361         writeData(f, s, strlen(s));
3362 }
3363
3364 /* Dump a gmon.out histogram file. */
3365 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3366 {
3367         uint32_t i;
3368         FILE *f = fopen(filename, "w");
3369         if (f == NULL)
3370                 return;
3371         writeString(f, "gmon");
3372         writeLong(f, 0x00000001); /* Version */
3373         writeLong(f, 0); /* padding */
3374         writeLong(f, 0); /* padding */
3375         writeLong(f, 0); /* padding */
3376
3377         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3378         writeData(f, &zero, 1);
3379
3380         /* figure out bucket size */
3381         uint32_t min = samples[0];
3382         uint32_t max = samples[0];
3383         for (i = 0; i < sampleNum; i++) {
3384                 if (min > samples[i])
3385                         min = samples[i];
3386                 if (max < samples[i])
3387                         max = samples[i];
3388         }
3389
3390         int addressSpace = (max - min + 1);
3391         assert(addressSpace >= 2);
3392
3393         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3394         uint32_t length = addressSpace;
3395         if (length > maxBuckets)
3396                 length = maxBuckets;
3397         int *buckets = malloc(sizeof(int)*length);
3398         if (buckets == NULL) {
3399                 fclose(f);
3400                 return;
3401         }
3402         memset(buckets, 0, sizeof(int) * length);
3403         for (i = 0; i < sampleNum; i++) {
3404                 uint32_t address = samples[i];
3405                 long long a = address - min;
3406                 long long b = length - 1;
3407                 long long c = addressSpace - 1;
3408                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3409                 buckets[index_t]++;
3410         }
3411
3412         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3413         writeLong(f, min);                      /* low_pc */
3414         writeLong(f, max);                      /* high_pc */
3415         writeLong(f, length);           /* # of samples */
3416         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3417         writeString(f, "seconds");
3418         for (i = 0; i < (15-strlen("seconds")); i++)
3419                 writeData(f, &zero, 1);
3420         writeString(f, "s");
3421
3422         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3423
3424         char *data = malloc(2 * length);
3425         if (data != NULL) {
3426                 for (i = 0; i < length; i++) {
3427                         int val;
3428                         val = buckets[i];
3429                         if (val > 65535)
3430                                 val = 65535;
3431                         data[i * 2] = val&0xff;
3432                         data[i * 2 + 1] = (val >> 8) & 0xff;
3433                 }
3434                 free(buckets);
3435                 writeData(f, data, length * 2);
3436                 free(data);
3437         } else
3438                 free(buckets);
3439
3440         fclose(f);
3441 }
3442
3443 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3444  * which will be used as a random sampling of PC */
3445 COMMAND_HANDLER(handle_profile_command)
3446 {
3447         struct target *target = get_current_target(CMD_CTX);
3448         struct timeval timeout, now;
3449
3450         gettimeofday(&timeout, NULL);
3451         if (CMD_ARGC != 2)
3452                 return ERROR_COMMAND_SYNTAX_ERROR;
3453         unsigned offset;
3454         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3455
3456         timeval_add_time(&timeout, offset, 0);
3457
3458         /**
3459          * @todo: Some cores let us sample the PC without the
3460          * annoying halt/resume step; for example, ARMv7 PCSR.
3461          * Provide a way to use that more efficient mechanism.
3462          */
3463
3464         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3465
3466         static const int maxSample = 10000;
3467         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3468         if (samples == NULL)
3469                 return ERROR_OK;
3470
3471         int numSamples = 0;
3472         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3473         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3474
3475         int retval = ERROR_OK;
3476         for (;;) {
3477                 target_poll(target);
3478                 if (target->state == TARGET_HALTED) {
3479                         uint32_t t = *((uint32_t *)reg->value);
3480                         samples[numSamples++] = t;
3481                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
3482                         retval = target_resume(target, 1, 0, 0, 0);
3483                         target_poll(target);
3484                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3485                 } else if (target->state == TARGET_RUNNING) {
3486                         /* We want to quickly sample the PC. */
3487                         retval = target_halt(target);
3488                         if (retval != ERROR_OK) {
3489                                 free(samples);
3490                                 return retval;
3491                         }
3492                 } else {
3493                         command_print(CMD_CTX, "Target not halted or running");
3494                         retval = ERROR_OK;
3495                         break;
3496                 }
3497                 if (retval != ERROR_OK)
3498                         break;
3499
3500                 gettimeofday(&now, NULL);
3501                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec)
3502                                 && (now.tv_usec >= timeout.tv_usec))) {
3503                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3504                         retval = target_poll(target);
3505                         if (retval != ERROR_OK) {
3506                                 free(samples);
3507                                 return retval;
3508                         }
3509                         if (target->state == TARGET_HALTED) {
3510                                 /* current pc, addr = 0, do not handle
3511                                  * breakpoints, not debugging */
3512                                 target_resume(target, 1, 0, 0, 0);
3513                         }
3514                         retval = target_poll(target);
3515                         if (retval != ERROR_OK) {
3516                                 free(samples);
3517                                 return retval;
3518                         }
3519                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3520                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3521                         break;
3522                 }
3523         }
3524         free(samples);
3525
3526         return retval;
3527 }
3528
3529 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3530 {
3531         char *namebuf;
3532         Jim_Obj *nameObjPtr, *valObjPtr;
3533         int result;
3534
3535         namebuf = alloc_printf("%s(%d)", varname, idx);
3536         if (!namebuf)
3537                 return JIM_ERR;
3538
3539         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3540         valObjPtr = Jim_NewIntObj(interp, val);
3541         if (!nameObjPtr || !valObjPtr) {
3542                 free(namebuf);
3543                 return JIM_ERR;
3544         }
3545
3546         Jim_IncrRefCount(nameObjPtr);
3547         Jim_IncrRefCount(valObjPtr);
3548         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3549         Jim_DecrRefCount(interp, nameObjPtr);
3550         Jim_DecrRefCount(interp, valObjPtr);
3551         free(namebuf);
3552         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3553         return result;
3554 }
3555
3556 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3557 {
3558         struct command_context *context;
3559         struct target *target;
3560
3561         context = current_command_context(interp);
3562         assert(context != NULL);
3563
3564         target = get_current_target(context);
3565         if (target == NULL) {
3566                 LOG_ERROR("mem2array: no current target");
3567                 return JIM_ERR;
3568         }
3569
3570         return target_mem2array(interp, target, argc - 1, argv + 1);
3571 }
3572
3573 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3574 {
3575         long l;
3576         uint32_t width;
3577         int len;
3578         uint32_t addr;
3579         uint32_t count;
3580         uint32_t v;
3581         const char *varname;
3582         int  n, e, retval;
3583         uint32_t i;
3584
3585         /* argv[1] = name of array to receive the data
3586          * argv[2] = desired width
3587          * argv[3] = memory address
3588          * argv[4] = count of times to read
3589          */
3590         if (argc != 4) {
3591                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3592                 return JIM_ERR;
3593         }
3594         varname = Jim_GetString(argv[0], &len);
3595         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3596
3597         e = Jim_GetLong(interp, argv[1], &l);
3598         width = l;
3599         if (e != JIM_OK)
3600                 return e;
3601
3602         e = Jim_GetLong(interp, argv[2], &l);
3603         addr = l;
3604         if (e != JIM_OK)
3605                 return e;
3606         e = Jim_GetLong(interp, argv[3], &l);
3607         len = l;
3608         if (e != JIM_OK)
3609                 return e;
3610         switch (width) {
3611                 case 8:
3612                         width = 1;
3613                         break;
3614                 case 16:
3615                         width = 2;
3616                         break;
3617                 case 32:
3618                         width = 4;
3619                         break;
3620                 default:
3621                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3622                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3623                         return JIM_ERR;
3624         }
3625         if (len == 0) {
3626                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3627                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3628                 return JIM_ERR;
3629         }
3630         if ((addr + (len * width)) < addr) {
3631                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3632                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3633                 return JIM_ERR;
3634         }
3635         /* absurd transfer size? */
3636         if (len > 65536) {
3637                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3638                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3639                 return JIM_ERR;
3640         }
3641
3642         if ((width == 1) ||
3643                 ((width == 2) && ((addr & 1) == 0)) ||
3644                 ((width == 4) && ((addr & 3) == 0))) {
3645                 /* all is well */
3646         } else {
3647                 char buf[100];
3648                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3649                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3650                                 addr,
3651                                 width);
3652                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3653                 return JIM_ERR;
3654         }
3655
3656         /* Transfer loop */
3657
3658         /* index counter */
3659         n = 0;
3660
3661         size_t buffersize = 4096;
3662         uint8_t *buffer = malloc(buffersize);
3663         if (buffer == NULL)
3664                 return JIM_ERR;
3665
3666         /* assume ok */
3667         e = JIM_OK;
3668         while (len) {
3669                 /* Slurp... in buffer size chunks */
3670
3671                 count = len; /* in objects.. */
3672                 if (count > (buffersize / width))
3673                         count = (buffersize / width);
3674
3675                 retval = target_read_memory(target, addr, width, count, buffer);
3676                 if (retval != ERROR_OK) {
3677                         /* BOO !*/
3678                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3679                                           (unsigned int)addr,
3680                                           (int)width,
3681                                           (int)count);
3682                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3683                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3684                         e = JIM_ERR;
3685                         break;
3686                 } else {
3687                         v = 0; /* shut up gcc */
3688                         for (i = 0; i < count ; i++, n++) {
3689                                 switch (width) {
3690                                         case 4:
3691                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3692                                                 break;
3693                                         case 2:
3694                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3695                                                 break;
3696                                         case 1:
3697                                                 v = buffer[i] & 0x0ff;
3698                                                 break;
3699                                 }
3700                                 new_int_array_element(interp, varname, n, v);
3701                         }
3702                         len -= count;
3703                 }
3704         }
3705
3706         free(buffer);
3707
3708         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3709
3710         return e;
3711 }
3712
3713 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3714 {
3715         char *namebuf;
3716         Jim_Obj *nameObjPtr, *valObjPtr;
3717         int result;
3718         long l;
3719
3720         namebuf = alloc_printf("%s(%d)", varname, idx);
3721         if (!namebuf)
3722                 return JIM_ERR;
3723
3724         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3725         if (!nameObjPtr) {
3726                 free(namebuf);
3727                 return JIM_ERR;
3728         }
3729
3730         Jim_IncrRefCount(nameObjPtr);
3731         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3732         Jim_DecrRefCount(interp, nameObjPtr);
3733         free(namebuf);
3734         if (valObjPtr == NULL)
3735                 return JIM_ERR;
3736
3737         result = Jim_GetLong(interp, valObjPtr, &l);
3738         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3739         *val = l;
3740         return result;
3741 }
3742
3743 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3744 {
3745         struct command_context *context;
3746         struct target *target;
3747
3748         context = current_command_context(interp);
3749         assert(context != NULL);
3750
3751         target = get_current_target(context);
3752         if (target == NULL) {
3753                 LOG_ERROR("array2mem: no current target");
3754                 return JIM_ERR;
3755         }
3756
3757         return target_array2mem(interp, target, argc-1, argv + 1);
3758 }
3759
3760 static int target_array2mem(Jim_Interp *interp, struct target *target,
3761                 int argc, Jim_Obj *const *argv)
3762 {
3763         long l;
3764         uint32_t width;
3765         int len;
3766         uint32_t addr;
3767         uint32_t count;
3768         uint32_t v;
3769         const char *varname;
3770         int  n, e, retval;
3771         uint32_t i;
3772
3773         /* argv[1] = name of array to get the data
3774          * argv[2] = desired width
3775          * argv[3] = memory address
3776          * argv[4] = count to write
3777          */
3778         if (argc != 4) {
3779                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3780                 return JIM_ERR;
3781         }
3782         varname = Jim_GetString(argv[0], &len);
3783         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3784
3785         e = Jim_GetLong(interp, argv[1], &l);
3786         width = l;
3787         if (e != JIM_OK)
3788                 return e;
3789
3790         e = Jim_GetLong(interp, argv[2], &l);
3791         addr = l;
3792         if (e != JIM_OK)
3793                 return e;
3794         e = Jim_GetLong(interp, argv[3], &l);
3795         len = l;
3796         if (e != JIM_OK)
3797                 return e;
3798         switch (width) {
3799                 case 8:
3800                         width = 1;
3801                         break;
3802                 case 16:
3803                         width = 2;
3804                         break;
3805                 case 32:
3806                         width = 4;
3807                         break;
3808                 default:
3809                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3810                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3811                                         "Invalid width param, must be 8/16/32", NULL);
3812                         return JIM_ERR;
3813         }
3814         if (len == 0) {
3815                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3816                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3817                                 "array2mem: zero width read?", NULL);
3818                 return JIM_ERR;
3819         }
3820         if ((addr + (len * width)) < addr) {
3821                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3822                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3823                                 "array2mem: addr + len - wraps to zero?", NULL);
3824                 return JIM_ERR;
3825         }
3826         /* absurd transfer size? */
3827         if (len > 65536) {
3828                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3829                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3830                                 "array2mem: absurd > 64K item request", NULL);
3831                 return JIM_ERR;
3832         }
3833
3834         if ((width == 1) ||
3835                 ((width == 2) && ((addr & 1) == 0)) ||
3836                 ((width == 4) && ((addr & 3) == 0))) {
3837                 /* all is well */
3838         } else {
3839                 char buf[100];
3840                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3841                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3842                                 (unsigned int)addr,
3843                                 (int)width);
3844                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3845                 return JIM_ERR;
3846         }
3847
3848         /* Transfer loop */
3849
3850         /* index counter */
3851         n = 0;
3852         /* assume ok */
3853         e = JIM_OK;
3854
3855         size_t buffersize = 4096;
3856         uint8_t *buffer = malloc(buffersize);
3857         if (buffer == NULL)
3858                 return JIM_ERR;
3859
3860         while (len) {
3861                 /* Slurp... in buffer size chunks */
3862
3863                 count = len; /* in objects.. */
3864                 if (count > (buffersize / width))
3865                         count = (buffersize / width);
3866
3867                 v = 0; /* shut up gcc */
3868                 for (i = 0; i < count; i++, n++) {
3869                         get_int_array_element(interp, varname, n, &v);
3870                         switch (width) {
3871                         case 4:
3872                                 target_buffer_set_u32(target, &buffer[i * width], v);
3873                                 break;
3874                         case 2:
3875                                 target_buffer_set_u16(target, &buffer[i * width], v);
3876                                 break;
3877                         case 1:
3878                                 buffer[i] = v & 0x0ff;
3879                                 break;
3880                         }
3881                 }
3882                 len -= count;
3883
3884                 retval = target_write_memory(target, addr, width, count, buffer);
3885                 if (retval != ERROR_OK) {
3886                         /* BOO !*/
3887                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3888                                           (unsigned int)addr,
3889                                           (int)width,
3890                                           (int)count);
3891                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3892                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3893                         e = JIM_ERR;
3894                         break;
3895                 }
3896         }
3897
3898         free(buffer);
3899
3900         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3901
3902         return e;
3903 }
3904
3905 /* FIX? should we propagate errors here rather than printing them
3906  * and continuing?
3907  */
3908 void target_handle_event(struct target *target, enum target_event e)
3909 {
3910         struct target_event_action *teap;
3911
3912         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3913                 if (teap->event == e) {
3914                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3915                                            target->target_number,
3916                                            target_name(target),
3917                                            target_type_name(target),
3918                                            e,
3919                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3920                                            Jim_GetString(teap->body, NULL));
3921                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3922                                 Jim_MakeErrorMessage(teap->interp);
3923                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3924                         }
3925                 }
3926         }
3927 }
3928
3929 /**
3930  * Returns true only if the target has a handler for the specified event.
3931  */
3932 bool target_has_event_action(struct target *target, enum target_event event)
3933 {
3934         struct target_event_action *teap;
3935
3936         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3937                 if (teap->event == event)
3938                         return true;
3939         }
3940         return false;
3941 }
3942
3943 enum target_cfg_param {
3944         TCFG_TYPE,
3945         TCFG_EVENT,
3946         TCFG_WORK_AREA_VIRT,
3947         TCFG_WORK_AREA_PHYS,
3948         TCFG_WORK_AREA_SIZE,
3949         TCFG_WORK_AREA_BACKUP,
3950         TCFG_ENDIAN,
3951         TCFG_VARIANT,
3952         TCFG_COREID,
3953         TCFG_CHAIN_POSITION,
3954         TCFG_DBGBASE,
3955         TCFG_RTOS,
3956 };
3957
3958 static Jim_Nvp nvp_config_opts[] = {
3959         { .name = "-type",             .value = TCFG_TYPE },
3960         { .name = "-event",            .value = TCFG_EVENT },
3961         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3962         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3963         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3964         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3965         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3966         { .name = "-variant",          .value = TCFG_VARIANT },
3967         { .name = "-coreid",           .value = TCFG_COREID },
3968         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3969         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3970         { .name = "-rtos",             .value = TCFG_RTOS },
3971         { .name = NULL, .value = -1 }
3972 };
3973
3974 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3975 {
3976         Jim_Nvp *n;
3977         Jim_Obj *o;
3978         jim_wide w;
3979         char *cp;
3980         int e;
3981
3982         /* parse config or cget options ... */
3983         while (goi->argc > 0) {
3984                 Jim_SetEmptyResult(goi->interp);
3985                 /* Jim_GetOpt_Debug(goi); */
3986
3987                 if (target->type->target_jim_configure) {
3988                         /* target defines a configure function */
3989                         /* target gets first dibs on parameters */
3990                         e = (*(target->type->target_jim_configure))(target, goi);
3991                         if (e == JIM_OK) {
3992                                 /* more? */
3993                                 continue;
3994                         }
3995                         if (e == JIM_ERR) {
3996                                 /* An error */
3997                                 return e;
3998                         }
3999                         /* otherwise we 'continue' below */
4000                 }
4001                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4002                 if (e != JIM_OK) {
4003                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4004                         return e;
4005                 }
4006                 switch (n->value) {
4007                 case TCFG_TYPE:
4008                         /* not setable */
4009                         if (goi->isconfigure) {
4010                                 Jim_SetResultFormatted(goi->interp,
4011                                                 "not settable: %s", n->name);
4012                                 return JIM_ERR;
4013                         } else {
4014 no_params:
4015                                 if (goi->argc != 0) {
4016                                         Jim_WrongNumArgs(goi->interp,
4017                                                         goi->argc, goi->argv,
4018                                                         "NO PARAMS");
4019                                         return JIM_ERR;
4020                                 }
4021                         }
4022                         Jim_SetResultString(goi->interp,
4023                                         target_type_name(target), -1);
4024                         /* loop for more */
4025                         break;
4026                 case TCFG_EVENT:
4027                         if (goi->argc == 0) {
4028                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4029                                 return JIM_ERR;
4030                         }
4031
4032                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4033                         if (e != JIM_OK) {
4034                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4035                                 return e;
4036                         }
4037
4038                         if (goi->isconfigure) {
4039                                 if (goi->argc != 1) {
4040                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4041                                         return JIM_ERR;
4042                                 }
4043                         } else {
4044                                 if (goi->argc != 0) {
4045                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4046                                         return JIM_ERR;
4047                                 }
4048                         }
4049
4050                         {
4051                                 struct target_event_action *teap;
4052
4053                                 teap = target->event_action;
4054                                 /* replace existing? */
4055                                 while (teap) {
4056                                         if (teap->event == (enum target_event)n->value)
4057                                                 break;
4058                                         teap = teap->next;
4059                                 }
4060
4061                                 if (goi->isconfigure) {
4062                                         bool replace = true;
4063                                         if (teap == NULL) {
4064                                                 /* create new */
4065                                                 teap = calloc(1, sizeof(*teap));
4066                                                 replace = false;
4067                                         }
4068                                         teap->event = n->value;
4069                                         teap->interp = goi->interp;
4070                                         Jim_GetOpt_Obj(goi, &o);
4071                                         if (teap->body)
4072                                                 Jim_DecrRefCount(teap->interp, teap->body);
4073                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4074                                         /*
4075                                          * FIXME:
4076                                          *     Tcl/TK - "tk events" have a nice feature.
4077                                          *     See the "BIND" command.
4078                                          *    We should support that here.
4079                                          *     You can specify %X and %Y in the event code.
4080                                          *     The idea is: %T - target name.
4081                                          *     The idea is: %N - target number
4082                                          *     The idea is: %E - event name.
4083                                          */
4084                                         Jim_IncrRefCount(teap->body);
4085
4086                                         if (!replace) {
4087                                                 /* add to head of event list */
4088                                                 teap->next = target->event_action;
4089                                                 target->event_action = teap;
4090                                         }
4091                                         Jim_SetEmptyResult(goi->interp);
4092                                 } else {
4093                                         /* get */
4094                                         if (teap == NULL)
4095                                                 Jim_SetEmptyResult(goi->interp);
4096                                         else
4097                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4098                                 }
4099                         }
4100                         /* loop for more */
4101                         break;
4102
4103                 case TCFG_WORK_AREA_VIRT:
4104                         if (goi->isconfigure) {
4105                                 target_free_all_working_areas(target);
4106                                 e = Jim_GetOpt_Wide(goi, &w);
4107                                 if (e != JIM_OK)
4108                                         return e;
4109                                 target->working_area_virt = w;
4110                                 target->working_area_virt_spec = true;
4111                         } else {
4112                                 if (goi->argc != 0)
4113                                         goto no_params;
4114                         }
4115                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4116                         /* loop for more */
4117                         break;
4118
4119                 case TCFG_WORK_AREA_PHYS:
4120                         if (goi->isconfigure) {
4121                                 target_free_all_working_areas(target);
4122                                 e = Jim_GetOpt_Wide(goi, &w);
4123                                 if (e != JIM_OK)
4124                                         return e;
4125                                 target->working_area_phys = w;
4126                                 target->working_area_phys_spec = true;
4127                         } else {
4128                                 if (goi->argc != 0)
4129                                         goto no_params;
4130                         }
4131                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4132                         /* loop for more */
4133                         break;
4134
4135                 case TCFG_WORK_AREA_SIZE:
4136                         if (goi->isconfigure) {
4137                                 target_free_all_working_areas(target);
4138                                 e = Jim_GetOpt_Wide(goi, &w);
4139                                 if (e != JIM_OK)
4140                                         return e;
4141                                 target->working_area_size = w;
4142                         } else {
4143                                 if (goi->argc != 0)
4144                                         goto no_params;
4145                         }
4146                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4147                         /* loop for more */
4148                         break;
4149
4150                 case TCFG_WORK_AREA_BACKUP:
4151                         if (goi->isconfigure) {
4152                                 target_free_all_working_areas(target);
4153                                 e = Jim_GetOpt_Wide(goi, &w);
4154                                 if (e != JIM_OK)
4155                                         return e;
4156                                 /* make this exactly 1 or 0 */
4157                                 target->backup_working_area = (!!w);
4158                         } else {
4159                                 if (goi->argc != 0)
4160                                         goto no_params;
4161                         }
4162                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4163                         /* loop for more e*/
4164                         break;
4165
4166
4167                 case TCFG_ENDIAN:
4168                         if (goi->isconfigure) {
4169                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4170                                 if (e != JIM_OK) {
4171                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4172                                         return e;
4173                                 }
4174                                 target->endianness = n->value;
4175                         } else {
4176                                 if (goi->argc != 0)
4177                                         goto no_params;
4178                         }
4179                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4180                         if (n->name == NULL) {
4181                                 target->endianness = TARGET_LITTLE_ENDIAN;
4182                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4183                         }
4184                         Jim_SetResultString(goi->interp, n->name, -1);
4185                         /* loop for more */
4186                         break;
4187
4188                 case TCFG_VARIANT:
4189                         if (goi->isconfigure) {
4190                                 if (goi->argc < 1) {
4191                                         Jim_SetResultFormatted(goi->interp,
4192                                                                                    "%s ?STRING?",
4193                                                                                    n->name);
4194                                         return JIM_ERR;
4195                                 }
4196                                 if (target->variant)
4197                                         free((void *)(target->variant));
4198                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4199                                 if (e != JIM_OK)
4200                                         return e;
4201                                 target->variant = strdup(cp);
4202                         } else {
4203                                 if (goi->argc != 0)
4204                                         goto no_params;
4205                         }
4206                         Jim_SetResultString(goi->interp, target->variant, -1);
4207                         /* loop for more */
4208                         break;
4209
4210                 case TCFG_COREID:
4211                         if (goi->isconfigure) {
4212                                 e = Jim_GetOpt_Wide(goi, &w);
4213                                 if (e != JIM_OK)
4214                                         return e;
4215                                 target->coreid = (int32_t)w;
4216                         } else {
4217                                 if (goi->argc != 0)
4218                                         goto no_params;
4219                         }
4220                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4221                         /* loop for more */
4222                         break;
4223
4224                 case TCFG_CHAIN_POSITION:
4225                         if (goi->isconfigure) {
4226                                 Jim_Obj *o_t;
4227                                 struct jtag_tap *tap;
4228                                 target_free_all_working_areas(target);
4229                                 e = Jim_GetOpt_Obj(goi, &o_t);
4230                                 if (e != JIM_OK)
4231                                         return e;
4232                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4233                                 if (tap == NULL)
4234                                         return JIM_ERR;
4235                                 /* make this exactly 1 or 0 */
4236                                 target->tap = tap;
4237                         } else {
4238                                 if (goi->argc != 0)
4239                                         goto no_params;
4240                         }
4241                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4242                         /* loop for more e*/
4243                         break;
4244                 case TCFG_DBGBASE:
4245                         if (goi->isconfigure) {
4246                                 e = Jim_GetOpt_Wide(goi, &w);
4247                                 if (e != JIM_OK)
4248                                         return e;
4249                                 target->dbgbase = (uint32_t)w;
4250                                 target->dbgbase_set = true;
4251                         } else {
4252                                 if (goi->argc != 0)
4253                                         goto no_params;
4254                         }
4255                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4256                         /* loop for more */
4257                         break;
4258
4259                 case TCFG_RTOS:
4260                         /* RTOS */
4261                         {
4262                                 int result = rtos_create(goi, target);
4263                                 if (result != JIM_OK)
4264                                         return result;
4265                         }
4266                         /* loop for more */
4267                         break;
4268                 }
4269         } /* while (goi->argc) */
4270
4271
4272                 /* done - we return */
4273         return JIM_OK;
4274 }
4275
4276 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4277 {
4278         Jim_GetOptInfo goi;
4279
4280         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4281         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4282         int need_args = 1 + goi.isconfigure;
4283         if (goi.argc < need_args) {
4284                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4285                         goi.isconfigure
4286                                 ? "missing: -option VALUE ..."
4287                                 : "missing: -option ...");
4288                 return JIM_ERR;
4289         }
4290         struct target *target = Jim_CmdPrivData(goi.interp);
4291         return target_configure(&goi, target);
4292 }
4293
4294 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4295 {
4296         const char *cmd_name = Jim_GetString(argv[0], NULL);
4297
4298         Jim_GetOptInfo goi;
4299         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4300
4301         if (goi.argc < 2 || goi.argc > 4) {
4302                 Jim_SetResultFormatted(goi.interp,
4303                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4304                 return JIM_ERR;
4305         }
4306
4307         target_write_fn fn;
4308         fn = target_write_memory_fast;
4309
4310         int e;
4311         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4312                 /* consume it */
4313                 struct Jim_Obj *obj;
4314                 e = Jim_GetOpt_Obj(&goi, &obj);
4315                 if (e != JIM_OK)
4316                         return e;
4317
4318                 fn = target_write_phys_memory;
4319         }
4320
4321         jim_wide a;
4322         e = Jim_GetOpt_Wide(&goi, &a);
4323         if (e != JIM_OK)
4324                 return e;
4325
4326         jim_wide b;
4327         e = Jim_GetOpt_Wide(&goi, &b);
4328         if (e != JIM_OK)
4329                 return e;
4330
4331         jim_wide c = 1;
4332         if (goi.argc == 1) {
4333                 e = Jim_GetOpt_Wide(&goi, &c);
4334                 if (e != JIM_OK)
4335                         return e;
4336         }
4337
4338         /* all args must be consumed */
4339         if (goi.argc != 0)
4340                 return JIM_ERR;
4341
4342         struct target *target = Jim_CmdPrivData(goi.interp);
4343         unsigned data_size;
4344         if (strcasecmp(cmd_name, "mww") == 0)
4345                 data_size = 4;
4346         else if (strcasecmp(cmd_name, "mwh") == 0)
4347                 data_size = 2;
4348         else if (strcasecmp(cmd_name, "mwb") == 0)
4349                 data_size = 1;
4350         else {
4351                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4352                 return JIM_ERR;
4353         }
4354
4355         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4356 }
4357
4358 /**
4359 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4360 *
4361 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4362 *         mdh [phys] <address> [<count>] - for 16 bit reads
4363 *         mdb [phys] <address> [<count>] - for  8 bit reads
4364 *
4365 *  Count defaults to 1.
4366 *
4367 *  Calls target_read_memory or target_read_phys_memory depending on
4368 *  the presence of the "phys" argument
4369 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4370 *  to int representation in base16.
4371 *  Also outputs read data in a human readable form using command_print
4372 *
4373 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4374 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4375 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4376 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4377 *  on success, with [<count>] number of elements.
4378 *
4379 *  In case of little endian target:
4380 *      Example1: "mdw 0x00000000"  returns "10123456"
4381 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4382 *      Example3: "mdb 0x00000000" returns "56"
4383 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4384 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4385 **/
4386 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4387 {
4388         const char *cmd_name = Jim_GetString(argv[0], NULL);
4389
4390         Jim_GetOptInfo goi;
4391         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4392
4393         if ((goi.argc < 1) || (goi.argc > 3)) {
4394                 Jim_SetResultFormatted(goi.interp,
4395                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4396                 return JIM_ERR;
4397         }
4398
4399         int (*fn)(struct target *target,
4400                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4401         fn = target_read_memory;
4402
4403         int e;
4404         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4405                 /* consume it */
4406                 struct Jim_Obj *obj;
4407                 e = Jim_GetOpt_Obj(&goi, &obj);
4408                 if (e != JIM_OK)
4409                         return e;
4410
4411                 fn = target_read_phys_memory;
4412         }
4413
4414         /* Read address parameter */
4415         jim_wide addr;
4416         e = Jim_GetOpt_Wide(&goi, &addr);
4417         if (e != JIM_OK)
4418                 return JIM_ERR;
4419
4420         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4421         jim_wide count;
4422         if (goi.argc == 1) {
4423                 e = Jim_GetOpt_Wide(&goi, &count);
4424                 if (e != JIM_OK)
4425                         return JIM_ERR;
4426         } else
4427                 count = 1;
4428
4429         /* all args must be consumed */
4430         if (goi.argc != 0)
4431                 return JIM_ERR;
4432
4433         jim_wide dwidth = 1; /* shut up gcc */
4434         if (strcasecmp(cmd_name, "mdw") == 0)
4435                 dwidth = 4;
4436         else if (strcasecmp(cmd_name, "mdh") == 0)
4437                 dwidth = 2;
4438         else if (strcasecmp(cmd_name, "mdb") == 0)
4439                 dwidth = 1;
4440         else {
4441                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4442                 return JIM_ERR;
4443         }
4444
4445         /* convert count to "bytes" */
4446         int bytes = count * dwidth;
4447
4448         struct target *target = Jim_CmdPrivData(goi.interp);
4449         uint8_t  target_buf[32];
4450         jim_wide x, y, z;
4451         while (bytes > 0) {
4452                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4453
4454                 /* Try to read out next block */
4455                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4456
4457                 if (e != ERROR_OK) {
4458                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4459                         return JIM_ERR;
4460                 }
4461
4462                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4463                 switch (dwidth) {
4464                 case 4:
4465                         for (x = 0; x < 16 && x < y; x += 4) {
4466                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4467                                 command_print_sameline(NULL, "%08x ", (int)(z));
4468                         }
4469                         for (; (x < 16) ; x += 4)
4470                                 command_print_sameline(NULL, "         ");
4471                         break;
4472                 case 2:
4473                         for (x = 0; x < 16 && x < y; x += 2) {
4474                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4475                                 command_print_sameline(NULL, "%04x ", (int)(z));
4476                         }
4477                         for (; (x < 16) ; x += 2)
4478                                 command_print_sameline(NULL, "     ");
4479                         break;
4480                 case 1:
4481                 default:
4482                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4483                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4484                                 command_print_sameline(NULL, "%02x ", (int)(z));
4485                         }
4486                         for (; (x < 16) ; x += 1)
4487                                 command_print_sameline(NULL, "   ");
4488                         break;
4489                 }
4490                 /* ascii-ify the bytes */
4491                 for (x = 0 ; x < y ; x++) {
4492                         if ((target_buf[x] >= 0x20) &&
4493                                 (target_buf[x] <= 0x7e)) {
4494                                 /* good */
4495                         } else {
4496                                 /* smack it */
4497                                 target_buf[x] = '.';
4498                         }
4499                 }
4500                 /* space pad  */
4501                 while (x < 16) {
4502                         target_buf[x] = ' ';
4503                         x++;
4504                 }
4505                 /* terminate */
4506                 target_buf[16] = 0;
4507                 /* print - with a newline */
4508                 command_print_sameline(NULL, "%s\n", target_buf);
4509                 /* NEXT... */
4510                 bytes -= 16;
4511                 addr += 16;
4512         }
4513         return JIM_OK;
4514 }
4515
4516 static int jim_target_mem2array(Jim_Interp *interp,
4517                 int argc, Jim_Obj *const *argv)
4518 {
4519         struct target *target = Jim_CmdPrivData(interp);
4520         return target_mem2array(interp, target, argc - 1, argv + 1);
4521 }
4522
4523 static int jim_target_array2mem(Jim_Interp *interp,
4524                 int argc, Jim_Obj *const *argv)
4525 {
4526         struct target *target = Jim_CmdPrivData(interp);
4527         return target_array2mem(interp, target, argc - 1, argv + 1);
4528 }
4529
4530 static int jim_target_tap_disabled(Jim_Interp *interp)
4531 {
4532         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4533         return JIM_ERR;
4534 }
4535
4536 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4537 {
4538         if (argc != 1) {
4539                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4540                 return JIM_ERR;
4541         }
4542         struct target *target = Jim_CmdPrivData(interp);
4543         if (!target->tap->enabled)
4544                 return jim_target_tap_disabled(interp);
4545
4546         int e = target->type->examine(target);
4547         if (e != ERROR_OK)
4548                 return JIM_ERR;
4549         return JIM_OK;
4550 }
4551
4552 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4553 {
4554         if (argc != 1) {
4555                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4556                 return JIM_ERR;
4557         }
4558         struct target *target = Jim_CmdPrivData(interp);
4559
4560         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4561                 return JIM_ERR;
4562
4563         return JIM_OK;
4564 }
4565
4566 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4567 {
4568         if (argc != 1) {
4569                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4570                 return JIM_ERR;
4571         }
4572         struct target *target = Jim_CmdPrivData(interp);
4573         if (!target->tap->enabled)
4574                 return jim_target_tap_disabled(interp);
4575
4576         int e;
4577         if (!(target_was_examined(target)))
4578                 e = ERROR_TARGET_NOT_EXAMINED;
4579         else
4580                 e = target->type->poll(target);
4581         if (e != ERROR_OK)
4582                 return JIM_ERR;
4583         return JIM_OK;
4584 }
4585
4586 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4587 {
4588         Jim_GetOptInfo goi;
4589         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4590
4591         if (goi.argc != 2) {
4592                 Jim_WrongNumArgs(interp, 0, argv,
4593                                 "([tT]|[fF]|assert|deassert) BOOL");
4594                 return JIM_ERR;
4595         }
4596
4597         Jim_Nvp *n;
4598         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4599         if (e != JIM_OK) {
4600                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4601                 return e;
4602         }
4603         /* the halt or not param */
4604         jim_wide a;
4605         e = Jim_GetOpt_Wide(&goi, &a);
4606         if (e != JIM_OK)
4607                 return e;
4608
4609         struct target *target = Jim_CmdPrivData(goi.interp);
4610         if (!target->tap->enabled)
4611                 return jim_target_tap_disabled(interp);
4612         if (!(target_was_examined(target))) {
4613                 LOG_ERROR("Target not examined yet");
4614                 return ERROR_TARGET_NOT_EXAMINED;
4615         }
4616         if (!target->type->assert_reset || !target->type->deassert_reset) {
4617                 Jim_SetResultFormatted(interp,
4618                                 "No target-specific reset for %s",
4619                                 target_name(target));
4620                 return JIM_ERR;
4621         }
4622         /* determine if we should halt or not. */
4623         target->reset_halt = !!a;
4624         /* When this happens - all workareas are invalid. */
4625         target_free_all_working_areas_restore(target, 0);
4626
4627         /* do the assert */
4628         if (n->value == NVP_ASSERT)
4629                 e = target->type->assert_reset(target);
4630         else
4631                 e = target->type->deassert_reset(target);
4632         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4633 }
4634
4635 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4636 {
4637         if (argc != 1) {
4638                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4639                 return JIM_ERR;
4640         }
4641         struct target *target = Jim_CmdPrivData(interp);
4642         if (!target->tap->enabled)
4643                 return jim_target_tap_disabled(interp);
4644         int e = target->type->halt(target);
4645         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4646 }
4647
4648 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4649 {
4650         Jim_GetOptInfo goi;
4651         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4652
4653         /* params:  <name>  statename timeoutmsecs */
4654         if (goi.argc != 2) {
4655                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4656                 Jim_SetResultFormatted(goi.interp,
4657                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4658                 return JIM_ERR;
4659         }
4660
4661         Jim_Nvp *n;
4662         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4663         if (e != JIM_OK) {
4664                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4665                 return e;
4666         }
4667         jim_wide a;
4668         e = Jim_GetOpt_Wide(&goi, &a);
4669         if (e != JIM_OK)
4670                 return e;
4671         struct target *target = Jim_CmdPrivData(interp);
4672         if (!target->tap->enabled)
4673                 return jim_target_tap_disabled(interp);
4674
4675         e = target_wait_state(target, n->value, a);
4676         if (e != ERROR_OK) {
4677                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4678                 Jim_SetResultFormatted(goi.interp,
4679                                 "target: %s wait %s fails (%#s) %s",
4680                                 target_name(target), n->name,
4681                                 eObj, target_strerror_safe(e));
4682                 Jim_FreeNewObj(interp, eObj);
4683                 return JIM_ERR;
4684         }
4685         return JIM_OK;
4686 }
4687 /* List for human, Events defined for this target.
4688  * scripts/programs should use 'name cget -event NAME'
4689  */
4690 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4691 {
4692         struct command_context *cmd_ctx = current_command_context(interp);
4693         assert(cmd_ctx != NULL);
4694
4695         struct target *target = Jim_CmdPrivData(interp);
4696         struct target_event_action *teap = target->event_action;
4697         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4698                                    target->target_number,
4699                                    target_name(target));
4700         command_print(cmd_ctx, "%-25s | Body", "Event");
4701         command_print(cmd_ctx, "------------------------- | "
4702                         "----------------------------------------");
4703         while (teap) {
4704                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4705                 command_print(cmd_ctx, "%-25s | %s",
4706                                 opt->name, Jim_GetString(teap->body, NULL));
4707                 teap = teap->next;
4708         }
4709         command_print(cmd_ctx, "***END***");
4710         return JIM_OK;
4711 }
4712 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4713 {
4714         if (argc != 1) {
4715                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4716                 return JIM_ERR;
4717         }
4718         struct target *target = Jim_CmdPrivData(interp);
4719         Jim_SetResultString(interp, target_state_name(target), -1);
4720         return JIM_OK;
4721 }
4722 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4723 {
4724         Jim_GetOptInfo goi;
4725         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4726         if (goi.argc != 1) {
4727                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4728                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4729                 return JIM_ERR;
4730         }
4731         Jim_Nvp *n;
4732         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4733         if (e != JIM_OK) {
4734                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4735                 return e;
4736         }
4737         struct target *target = Jim_CmdPrivData(interp);
4738         target_handle_event(target, n->value);
4739         return JIM_OK;
4740 }
4741
4742 static const struct command_registration target_instance_command_handlers[] = {
4743         {
4744                 .name = "configure",
4745                 .mode = COMMAND_CONFIG,
4746                 .jim_handler = jim_target_configure,
4747                 .help  = "configure a new target for use",
4748                 .usage = "[target_attribute ...]",
4749         },
4750         {
4751                 .name = "cget",
4752                 .mode = COMMAND_ANY,
4753                 .jim_handler = jim_target_configure,
4754                 .help  = "returns the specified target attribute",
4755                 .usage = "target_attribute",
4756         },
4757         {
4758                 .name = "mww",
4759                 .mode = COMMAND_EXEC,
4760                 .jim_handler = jim_target_mw,
4761                 .help = "Write 32-bit word(s) to target memory",
4762                 .usage = "address data [count]",
4763         },
4764         {
4765                 .name = "mwh",
4766                 .mode = COMMAND_EXEC,
4767                 .jim_handler = jim_target_mw,
4768                 .help = "Write 16-bit half-word(s) to target memory",
4769                 .usage = "address data [count]",
4770         },
4771         {
4772                 .name = "mwb",
4773                 .mode = COMMAND_EXEC,
4774                 .jim_handler = jim_target_mw,
4775                 .help = "Write byte(s) to target memory",
4776                 .usage = "address data [count]",
4777         },
4778         {
4779                 .name = "mdw",
4780                 .mode = COMMAND_EXEC,
4781                 .jim_handler = jim_target_md,
4782                 .help = "Display target memory as 32-bit words",
4783                 .usage = "address [count]",
4784         },
4785         {
4786                 .name = "mdh",
4787                 .mode = COMMAND_EXEC,
4788                 .jim_handler = jim_target_md,
4789                 .help = "Display target memory as 16-bit half-words",
4790                 .usage = "address [count]",
4791         },
4792         {
4793                 .name = "mdb",
4794                 .mode = COMMAND_EXEC,
4795                 .jim_handler = jim_target_md,
4796                 .help = "Display target memory as 8-bit bytes",
4797                 .usage = "address [count]",
4798         },
4799         {
4800                 .name = "array2mem",
4801                 .mode = COMMAND_EXEC,
4802                 .jim_handler = jim_target_array2mem,
4803                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4804                         "to target memory",
4805                 .usage = "arrayname bitwidth address count",
4806         },
4807         {
4808                 .name = "mem2array",
4809                 .mode = COMMAND_EXEC,
4810                 .jim_handler = jim_target_mem2array,
4811                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4812                         "from target memory",
4813                 .usage = "arrayname bitwidth address count",
4814         },
4815         {
4816                 .name = "eventlist",
4817                 .mode = COMMAND_EXEC,
4818                 .jim_handler = jim_target_event_list,
4819                 .help = "displays a table of events defined for this target",
4820         },
4821         {
4822                 .name = "curstate",
4823                 .mode = COMMAND_EXEC,
4824                 .jim_handler = jim_target_current_state,
4825                 .help = "displays the current state of this target",
4826         },
4827         {
4828                 .name = "arp_examine",
4829                 .mode = COMMAND_EXEC,
4830                 .jim_handler = jim_target_examine,
4831                 .help = "used internally for reset processing",
4832         },
4833         {
4834                 .name = "arp_halt_gdb",
4835                 .mode = COMMAND_EXEC,
4836                 .jim_handler = jim_target_halt_gdb,
4837                 .help = "used internally for reset processing to halt GDB",
4838         },
4839         {
4840                 .name = "arp_poll",
4841                 .mode = COMMAND_EXEC,
4842                 .jim_handler = jim_target_poll,
4843                 .help = "used internally for reset processing",
4844         },
4845         {
4846                 .name = "arp_reset",
4847                 .mode = COMMAND_EXEC,
4848                 .jim_handler = jim_target_reset,
4849                 .help = "used internally for reset processing",
4850         },
4851         {
4852                 .name = "arp_halt",
4853                 .mode = COMMAND_EXEC,
4854                 .jim_handler = jim_target_halt,
4855                 .help = "used internally for reset processing",
4856         },
4857         {
4858                 .name = "arp_waitstate",
4859                 .mode = COMMAND_EXEC,
4860                 .jim_handler = jim_target_wait_state,
4861                 .help = "used internally for reset processing",
4862         },
4863         {
4864                 .name = "invoke-event",
4865                 .mode = COMMAND_EXEC,
4866                 .jim_handler = jim_target_invoke_event,
4867                 .help = "invoke handler for specified event",
4868                 .usage = "event_name",
4869         },
4870         COMMAND_REGISTRATION_DONE
4871 };
4872
4873 static int target_create(Jim_GetOptInfo *goi)
4874 {
4875         Jim_Obj *new_cmd;
4876         Jim_Cmd *cmd;
4877         const char *cp;
4878         char *cp2;
4879         int e;
4880         int x;
4881         struct target *target;
4882         struct command_context *cmd_ctx;
4883
4884         cmd_ctx = current_command_context(goi->interp);
4885         assert(cmd_ctx != NULL);
4886
4887         if (goi->argc < 3) {
4888                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4889                 return JIM_ERR;
4890         }
4891
4892         /* COMMAND */
4893         Jim_GetOpt_Obj(goi, &new_cmd);
4894         /* does this command exist? */
4895         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4896         if (cmd) {
4897                 cp = Jim_GetString(new_cmd, NULL);
4898                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4899                 return JIM_ERR;
4900         }
4901
4902         /* TYPE */
4903         e = Jim_GetOpt_String(goi, &cp2, NULL);
4904         if (e != JIM_OK)
4905                 return e;
4906         cp = cp2;
4907         /* now does target type exist */
4908         for (x = 0 ; target_types[x] ; x++) {
4909                 if (0 == strcmp(cp, target_types[x]->name)) {
4910                         /* found */
4911                         break;
4912                 }
4913
4914                 /* check for deprecated name */
4915                 if (target_types[x]->deprecated_name) {
4916                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
4917                                 /* found */
4918                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
4919                                 break;
4920                         }
4921                 }
4922         }
4923         if (target_types[x] == NULL) {
4924                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4925                 for (x = 0 ; target_types[x] ; x++) {
4926                         if (target_types[x + 1]) {
4927                                 Jim_AppendStrings(goi->interp,
4928                                                                    Jim_GetResult(goi->interp),
4929                                                                    target_types[x]->name,
4930                                                                    ", ", NULL);
4931                         } else {
4932                                 Jim_AppendStrings(goi->interp,
4933                                                                    Jim_GetResult(goi->interp),
4934                                                                    " or ",
4935                                                                    target_types[x]->name, NULL);
4936                         }
4937                 }
4938                 return JIM_ERR;
4939         }
4940
4941         /* Create it */
4942         target = calloc(1, sizeof(struct target));
4943         /* set target number */
4944         target->target_number = new_target_number();
4945
4946         /* allocate memory for each unique target type */
4947         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
4948
4949         memcpy(target->type, target_types[x], sizeof(struct target_type));
4950
4951         /* will be set by "-endian" */
4952         target->endianness = TARGET_ENDIAN_UNKNOWN;
4953
4954         /* default to first core, override with -coreid */
4955         target->coreid = 0;
4956
4957         target->working_area        = 0x0;
4958         target->working_area_size   = 0x0;
4959         target->working_areas       = NULL;
4960         target->backup_working_area = 0;
4961
4962         target->state               = TARGET_UNKNOWN;
4963         target->debug_reason        = DBG_REASON_UNDEFINED;
4964         target->reg_cache           = NULL;
4965         target->breakpoints         = NULL;
4966         target->watchpoints         = NULL;
4967         target->next                = NULL;
4968         target->arch_info           = NULL;
4969
4970         target->display             = 1;
4971
4972         target->halt_issued                     = false;
4973
4974         /* initialize trace information */
4975         target->trace_info = malloc(sizeof(struct trace));
4976         target->trace_info->num_trace_points         = 0;
4977         target->trace_info->trace_points_size        = 0;
4978         target->trace_info->trace_points             = NULL;
4979         target->trace_info->trace_history_size       = 0;
4980         target->trace_info->trace_history            = NULL;
4981         target->trace_info->trace_history_pos        = 0;
4982         target->trace_info->trace_history_overflowed = 0;
4983
4984         target->dbgmsg          = NULL;
4985         target->dbg_msg_enabled = 0;
4986
4987         target->endianness = TARGET_ENDIAN_UNKNOWN;
4988
4989         target->rtos = NULL;
4990         target->rtos_auto_detect = false;
4991
4992         /* Do the rest as "configure" options */
4993         goi->isconfigure = 1;
4994         e = target_configure(goi, target);
4995
4996         if (target->tap == NULL) {
4997                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4998                 e = JIM_ERR;
4999         }
5000
5001         if (e != JIM_OK) {
5002                 free(target->type);
5003                 free(target);
5004                 return e;
5005         }
5006
5007         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5008                 /* default endian to little if not specified */
5009                 target->endianness = TARGET_LITTLE_ENDIAN;
5010         }
5011
5012         /* incase variant is not set */
5013         if (!target->variant)
5014                 target->variant = strdup("");
5015
5016         cp = Jim_GetString(new_cmd, NULL);
5017         target->cmd_name = strdup(cp);
5018
5019         /* create the target specific commands */
5020         if (target->type->commands) {
5021                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5022                 if (ERROR_OK != e)
5023                         LOG_ERROR("unable to register '%s' commands", cp);
5024         }
5025         if (target->type->target_create)
5026                 (*(target->type->target_create))(target, goi->interp);
5027
5028         /* append to end of list */
5029         {
5030                 struct target **tpp;
5031                 tpp = &(all_targets);
5032                 while (*tpp)
5033                         tpp = &((*tpp)->next);
5034                 *tpp = target;
5035         }
5036
5037         /* now - create the new target name command */
5038         const const struct command_registration target_subcommands[] = {
5039                 {
5040                         .chain = target_instance_command_handlers,
5041                 },
5042                 {
5043                         .chain = target->type->commands,
5044                 },
5045                 COMMAND_REGISTRATION_DONE
5046         };
5047         const const struct command_registration target_commands[] = {
5048                 {
5049                         .name = cp,
5050                         .mode = COMMAND_ANY,
5051                         .help = "target command group",
5052                         .usage = "",
5053                         .chain = target_subcommands,
5054                 },
5055                 COMMAND_REGISTRATION_DONE
5056         };
5057         e = register_commands(cmd_ctx, NULL, target_commands);
5058         if (ERROR_OK != e)
5059                 return JIM_ERR;
5060
5061         struct command *c = command_find_in_context(cmd_ctx, cp);
5062         assert(c);
5063         command_set_handler_data(c, target);
5064
5065         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5066 }
5067
5068 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5069 {
5070         if (argc != 1) {
5071                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5072                 return JIM_ERR;
5073         }
5074         struct command_context *cmd_ctx = current_command_context(interp);
5075         assert(cmd_ctx != NULL);
5076
5077         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
5078         return JIM_OK;
5079 }
5080
5081 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5082 {
5083         if (argc != 1) {
5084                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5085                 return JIM_ERR;
5086         }
5087         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5088         for (unsigned x = 0; NULL != target_types[x]; x++) {
5089                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5090                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5091         }
5092         return JIM_OK;
5093 }
5094
5095 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5096 {
5097         if (argc != 1) {
5098                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5099                 return JIM_ERR;
5100         }
5101         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5102         struct target *target = all_targets;
5103         while (target) {
5104                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5105                         Jim_NewStringObj(interp, target_name(target), -1));
5106                 target = target->next;
5107         }
5108         return JIM_OK;
5109 }
5110
5111 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5112 {
5113         int i;
5114         const char *targetname;
5115         int retval, len;
5116         struct target *target = (struct target *) NULL;
5117         struct target_list *head, *curr, *new;
5118         curr = (struct target_list *) NULL;
5119         head = (struct target_list *) NULL;
5120
5121         retval = 0;
5122         LOG_DEBUG("%d", argc);
5123         /* argv[1] = target to associate in smp
5124          * argv[2] = target to assoicate in smp
5125          * argv[3] ...
5126          */
5127
5128         for (i = 1; i < argc; i++) {
5129
5130                 targetname = Jim_GetString(argv[i], &len);
5131                 target = get_target(targetname);
5132                 LOG_DEBUG("%s ", targetname);
5133                 if (target) {
5134                         new = malloc(sizeof(struct target_list));
5135                         new->target = target;
5136                         new->next = (struct target_list *)NULL;
5137                         if (head == (struct target_list *)NULL) {
5138                                 head = new;
5139                                 curr = head;
5140                         } else {
5141                                 curr->next = new;
5142                                 curr = new;
5143                         }
5144                 }
5145         }
5146         /*  now parse the list of cpu and put the target in smp mode*/
5147         curr = head;
5148
5149         while (curr != (struct target_list *)NULL) {
5150                 target = curr->target;
5151                 target->smp = 1;
5152                 target->head = head;
5153                 curr = curr->next;
5154         }
5155
5156         if (target && target->rtos)
5157                 retval = rtos_smp_init(head->target);
5158
5159         return retval;
5160 }
5161
5162
5163 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5164 {
5165         Jim_GetOptInfo goi;
5166         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5167         if (goi.argc < 3) {
5168                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5169                         "<name> <target_type> [<target_options> ...]");
5170                 return JIM_ERR;
5171         }
5172         return target_create(&goi);
5173 }
5174
5175 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5176 {
5177         Jim_GetOptInfo goi;
5178         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5179
5180         /* It's OK to remove this mechanism sometime after August 2010 or so */
5181         LOG_WARNING("don't use numbers as target identifiers; use names");
5182         if (goi.argc != 1) {
5183                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5184                 return JIM_ERR;
5185         }
5186         jim_wide w;
5187         int e = Jim_GetOpt_Wide(&goi, &w);
5188         if (e != JIM_OK)
5189                 return JIM_ERR;
5190
5191         struct target *target;
5192         for (target = all_targets; NULL != target; target = target->next) {
5193                 if (target->target_number != w)
5194                         continue;
5195
5196                 Jim_SetResultString(goi.interp, target_name(target), -1);
5197                 return JIM_OK;
5198         }
5199         {
5200                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5201                 Jim_SetResultFormatted(goi.interp,
5202                         "Target: number %#s does not exist", wObj);
5203                 Jim_FreeNewObj(interp, wObj);
5204         }
5205         return JIM_ERR;
5206 }
5207
5208 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5209 {
5210         if (argc != 1) {
5211                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5212                 return JIM_ERR;
5213         }
5214         unsigned count = 0;
5215         struct target *target = all_targets;
5216         while (NULL != target) {
5217                 target = target->next;
5218                 count++;
5219         }
5220         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5221         return JIM_OK;
5222 }
5223
5224 static const struct command_registration target_subcommand_handlers[] = {
5225         {
5226                 .name = "init",
5227                 .mode = COMMAND_CONFIG,
5228                 .handler = handle_target_init_command,
5229                 .help = "initialize targets",
5230         },
5231         {
5232                 .name = "create",
5233                 /* REVISIT this should be COMMAND_CONFIG ... */
5234                 .mode = COMMAND_ANY,
5235                 .jim_handler = jim_target_create,
5236                 .usage = "name type '-chain-position' name [options ...]",
5237                 .help = "Creates and selects a new target",
5238         },
5239         {
5240                 .name = "current",
5241                 .mode = COMMAND_ANY,
5242                 .jim_handler = jim_target_current,
5243                 .help = "Returns the currently selected target",
5244         },
5245         {
5246                 .name = "types",
5247                 .mode = COMMAND_ANY,
5248                 .jim_handler = jim_target_types,
5249                 .help = "Returns the available target types as "
5250                                 "a list of strings",
5251         },
5252         {
5253                 .name = "names",
5254                 .mode = COMMAND_ANY,
5255                 .jim_handler = jim_target_names,
5256                 .help = "Returns the names of all targets as a list of strings",
5257         },
5258         {
5259                 .name = "number",
5260                 .mode = COMMAND_ANY,
5261                 .jim_handler = jim_target_number,
5262                 .usage = "number",
5263                 .help = "Returns the name of the numbered target "
5264                         "(DEPRECATED)",
5265         },
5266         {
5267                 .name = "count",
5268                 .mode = COMMAND_ANY,
5269                 .jim_handler = jim_target_count,
5270                 .help = "Returns the number of targets as an integer "
5271                         "(DEPRECATED)",
5272         },
5273         {
5274                 .name = "smp",
5275                 .mode = COMMAND_ANY,
5276                 .jim_handler = jim_target_smp,
5277                 .usage = "targetname1 targetname2 ...",
5278                 .help = "gather several target in a smp list"
5279         },
5280
5281         COMMAND_REGISTRATION_DONE
5282 };
5283
5284 struct FastLoad {
5285         uint32_t address;
5286         uint8_t *data;
5287         int length;
5288
5289 };
5290
5291 static int fastload_num;
5292 static struct FastLoad *fastload;
5293
5294 static void free_fastload(void)
5295 {
5296         if (fastload != NULL) {
5297                 int i;
5298                 for (i = 0; i < fastload_num; i++) {
5299                         if (fastload[i].data)
5300                                 free(fastload[i].data);
5301                 }
5302                 free(fastload);
5303                 fastload = NULL;
5304         }
5305 }
5306
5307 COMMAND_HANDLER(handle_fast_load_image_command)
5308 {
5309         uint8_t *buffer;
5310         size_t buf_cnt;
5311         uint32_t image_size;
5312         uint32_t min_address = 0;
5313         uint32_t max_address = 0xffffffff;
5314         int i;
5315
5316         struct image image;
5317
5318         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5319                         &image, &min_address, &max_address);
5320         if (ERROR_OK != retval)
5321                 return retval;
5322
5323         struct duration bench;
5324         duration_start(&bench);
5325
5326         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5327         if (retval != ERROR_OK)
5328                 return retval;
5329
5330         image_size = 0x0;
5331         retval = ERROR_OK;
5332         fastload_num = image.num_sections;
5333         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5334         if (fastload == NULL) {
5335                 command_print(CMD_CTX, "out of memory");
5336                 image_close(&image);
5337                 return ERROR_FAIL;
5338         }
5339         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5340         for (i = 0; i < image.num_sections; i++) {
5341                 buffer = malloc(image.sections[i].size);
5342                 if (buffer == NULL) {
5343                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5344                                                   (int)(image.sections[i].size));
5345                         retval = ERROR_FAIL;
5346                         break;
5347                 }
5348
5349                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5350                 if (retval != ERROR_OK) {
5351                         free(buffer);
5352                         break;
5353                 }
5354
5355                 uint32_t offset = 0;
5356                 uint32_t length = buf_cnt;
5357
5358                 /* DANGER!!! beware of unsigned comparision here!!! */
5359
5360                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5361                                 (image.sections[i].base_address < max_address)) {
5362                         if (image.sections[i].base_address < min_address) {
5363                                 /* clip addresses below */
5364                                 offset += min_address-image.sections[i].base_address;
5365                                 length -= offset;
5366                         }
5367
5368                         if (image.sections[i].base_address + buf_cnt > max_address)
5369                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5370
5371                         fastload[i].address = image.sections[i].base_address + offset;
5372                         fastload[i].data = malloc(length);
5373                         if (fastload[i].data == NULL) {
5374                                 free(buffer);
5375                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5376                                                           length);
5377                                 retval = ERROR_FAIL;
5378                                 break;
5379                         }
5380                         memcpy(fastload[i].data, buffer + offset, length);
5381                         fastload[i].length = length;
5382
5383                         image_size += length;
5384                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5385                                                   (unsigned int)length,
5386                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5387                 }
5388
5389                 free(buffer);
5390         }
5391
5392         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5393                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5394                                 "in %fs (%0.3f KiB/s)", image_size,
5395                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5396
5397                 command_print(CMD_CTX,
5398                                 "WARNING: image has not been loaded to target!"
5399                                 "You can issue a 'fast_load' to finish loading.");
5400         }
5401
5402         image_close(&image);
5403
5404         if (retval != ERROR_OK)
5405                 free_fastload();
5406
5407         return retval;
5408 }
5409
5410 COMMAND_HANDLER(handle_fast_load_command)
5411 {
5412         if (CMD_ARGC > 0)
5413                 return ERROR_COMMAND_SYNTAX_ERROR;
5414         if (fastload == NULL) {
5415                 LOG_ERROR("No image in memory");
5416                 return ERROR_FAIL;
5417         }
5418         int i;
5419         int ms = timeval_ms();
5420         int size = 0;
5421         int retval = ERROR_OK;
5422         for (i = 0; i < fastload_num; i++) {
5423                 struct target *target = get_current_target(CMD_CTX);
5424                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5425                                           (unsigned int)(fastload[i].address),
5426                                           (unsigned int)(fastload[i].length));
5427                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5428                 if (retval != ERROR_OK)
5429                         break;
5430                 size += fastload[i].length;
5431         }
5432         if (retval == ERROR_OK) {
5433                 int after = timeval_ms();
5434                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5435         }
5436         return retval;
5437 }
5438
5439 static const struct command_registration target_command_handlers[] = {
5440         {
5441                 .name = "targets",
5442                 .handler = handle_targets_command,
5443                 .mode = COMMAND_ANY,
5444                 .help = "change current default target (one parameter) "
5445                         "or prints table of all targets (no parameters)",
5446                 .usage = "[target]",
5447         },
5448         {
5449                 .name = "target",
5450                 .mode = COMMAND_CONFIG,
5451                 .help = "configure target",
5452
5453                 .chain = target_subcommand_handlers,
5454         },
5455         COMMAND_REGISTRATION_DONE
5456 };
5457
5458 int target_register_commands(struct command_context *cmd_ctx)
5459 {
5460         return register_commands(cmd_ctx, NULL, target_command_handlers);
5461 }
5462
5463 static bool target_reset_nag = true;
5464
5465 bool get_target_reset_nag(void)
5466 {
5467         return target_reset_nag;
5468 }
5469
5470 COMMAND_HANDLER(handle_target_reset_nag)
5471 {
5472         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5473                         &target_reset_nag, "Nag after each reset about options to improve "
5474                         "performance");
5475 }
5476
5477 COMMAND_HANDLER(handle_ps_command)
5478 {
5479         struct target *target = get_current_target(CMD_CTX);
5480         char *display;
5481         if (target->state != TARGET_HALTED) {
5482                 LOG_INFO("target not halted !!");
5483                 return ERROR_OK;
5484         }
5485
5486         if ((target->rtos) && (target->rtos->type)
5487                         && (target->rtos->type->ps_command)) {
5488                 display = target->rtos->type->ps_command(target);
5489                 command_print(CMD_CTX, "%s", display);
5490                 free(display);
5491                 return ERROR_OK;
5492         } else {
5493                 LOG_INFO("failed");
5494                 return ERROR_TARGET_FAILURE;
5495         }
5496 }
5497
5498 static const struct command_registration target_exec_command_handlers[] = {
5499         {
5500                 .name = "fast_load_image",
5501                 .handler = handle_fast_load_image_command,
5502                 .mode = COMMAND_ANY,
5503                 .help = "Load image into server memory for later use by "
5504                         "fast_load; primarily for profiling",
5505                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5506                         "[min_address [max_length]]",
5507         },
5508         {
5509                 .name = "fast_load",
5510                 .handler = handle_fast_load_command,
5511                 .mode = COMMAND_EXEC,
5512                 .help = "loads active fast load image to current target "
5513                         "- mainly for profiling purposes",
5514                 .usage = "",
5515         },
5516         {
5517                 .name = "profile",
5518                 .handler = handle_profile_command,
5519                 .mode = COMMAND_EXEC,
5520                 .usage = "seconds filename",
5521                 .help = "profiling samples the CPU PC",
5522         },
5523         /** @todo don't register virt2phys() unless target supports it */
5524         {
5525                 .name = "virt2phys",
5526                 .handler = handle_virt2phys_command,
5527                 .mode = COMMAND_ANY,
5528                 .help = "translate a virtual address into a physical address",
5529                 .usage = "virtual_address",
5530         },
5531         {
5532                 .name = "reg",
5533                 .handler = handle_reg_command,
5534                 .mode = COMMAND_EXEC,
5535                 .help = "display or set a register; with no arguments, "
5536                         "displays all registers and their values",
5537                 .usage = "[(register_name|register_number) [value]]",
5538         },
5539         {
5540                 .name = "poll",
5541                 .handler = handle_poll_command,
5542                 .mode = COMMAND_EXEC,
5543                 .help = "poll target state; or reconfigure background polling",
5544                 .usage = "['on'|'off']",
5545         },
5546         {
5547                 .name = "wait_halt",
5548                 .handler = handle_wait_halt_command,
5549                 .mode = COMMAND_EXEC,
5550                 .help = "wait up to the specified number of milliseconds "
5551                         "(default 5) for a previously requested halt",
5552                 .usage = "[milliseconds]",
5553         },
5554         {
5555                 .name = "halt",
5556                 .handler = handle_halt_command,
5557                 .mode = COMMAND_EXEC,
5558                 .help = "request target to halt, then wait up to the specified"
5559                         "number of milliseconds (default 5) for it to complete",
5560                 .usage = "[milliseconds]",
5561         },
5562         {
5563                 .name = "resume",
5564                 .handler = handle_resume_command,
5565                 .mode = COMMAND_EXEC,
5566                 .help = "resume target execution from current PC or address",
5567                 .usage = "[address]",
5568         },
5569         {
5570                 .name = "reset",
5571                 .handler = handle_reset_command,
5572                 .mode = COMMAND_EXEC,
5573                 .usage = "[run|halt|init]",
5574                 .help = "Reset all targets into the specified mode."
5575                         "Default reset mode is run, if not given.",
5576         },
5577         {
5578                 .name = "soft_reset_halt",
5579                 .handler = handle_soft_reset_halt_command,
5580                 .mode = COMMAND_EXEC,
5581                 .usage = "",
5582                 .help = "halt the target and do a soft reset",
5583         },
5584         {
5585                 .name = "step",
5586                 .handler = handle_step_command,
5587                 .mode = COMMAND_EXEC,
5588                 .help = "step one instruction from current PC or address",
5589                 .usage = "[address]",
5590         },
5591         {
5592                 .name = "mdw",
5593                 .handler = handle_md_command,
5594                 .mode = COMMAND_EXEC,
5595                 .help = "display memory words",
5596                 .usage = "['phys'] address [count]",
5597         },
5598         {
5599                 .name = "mdh",
5600                 .handler = handle_md_command,
5601                 .mode = COMMAND_EXEC,
5602                 .help = "display memory half-words",
5603                 .usage = "['phys'] address [count]",
5604         },
5605         {
5606                 .name = "mdb",
5607                 .handler = handle_md_command,
5608                 .mode = COMMAND_EXEC,
5609                 .help = "display memory bytes",
5610                 .usage = "['phys'] address [count]",
5611         },
5612         {
5613                 .name = "mww",
5614                 .handler = handle_mw_command,
5615                 .mode = COMMAND_EXEC,
5616                 .help = "write memory word",
5617                 .usage = "['phys'] address value [count]",
5618         },
5619         {
5620                 .name = "mwh",
5621                 .handler = handle_mw_command,
5622                 .mode = COMMAND_EXEC,
5623                 .help = "write memory half-word",
5624                 .usage = "['phys'] address value [count]",
5625         },
5626         {
5627                 .name = "mwb",
5628                 .handler = handle_mw_command,
5629                 .mode = COMMAND_EXEC,
5630                 .help = "write memory byte",
5631                 .usage = "['phys'] address value [count]",
5632         },
5633         {
5634                 .name = "bp",
5635                 .handler = handle_bp_command,
5636                 .mode = COMMAND_EXEC,
5637                 .help = "list or set hardware or software breakpoint",
5638                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5639         },
5640         {
5641                 .name = "rbp",
5642                 .handler = handle_rbp_command,
5643                 .mode = COMMAND_EXEC,
5644                 .help = "remove breakpoint",
5645                 .usage = "address",
5646         },
5647         {
5648                 .name = "wp",
5649                 .handler = handle_wp_command,
5650                 .mode = COMMAND_EXEC,
5651                 .help = "list (no params) or create watchpoints",
5652                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5653         },
5654         {
5655                 .name = "rwp",
5656                 .handler = handle_rwp_command,
5657                 .mode = COMMAND_EXEC,
5658                 .help = "remove watchpoint",
5659                 .usage = "address",
5660         },
5661         {
5662                 .name = "load_image",
5663                 .handler = handle_load_image_command,
5664                 .mode = COMMAND_EXEC,
5665                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5666                         "[min_address] [max_length]",
5667         },
5668         {
5669                 .name = "dump_image",
5670                 .handler = handle_dump_image_command,
5671                 .mode = COMMAND_EXEC,
5672                 .usage = "filename address size",
5673         },
5674         {
5675                 .name = "verify_image",
5676                 .handler = handle_verify_image_command,
5677                 .mode = COMMAND_EXEC,
5678                 .usage = "filename [offset [type]]",
5679         },
5680         {
5681                 .name = "test_image",
5682                 .handler = handle_test_image_command,
5683                 .mode = COMMAND_EXEC,
5684                 .usage = "filename [offset [type]]",
5685         },
5686         {
5687                 .name = "mem2array",
5688                 .mode = COMMAND_EXEC,
5689                 .jim_handler = jim_mem2array,
5690                 .help = "read 8/16/32 bit memory and return as a TCL array "
5691                         "for script processing",
5692                 .usage = "arrayname bitwidth address count",
5693         },
5694         {
5695                 .name = "array2mem",
5696                 .mode = COMMAND_EXEC,
5697                 .jim_handler = jim_array2mem,
5698                 .help = "convert a TCL array to memory locations "
5699                         "and write the 8/16/32 bit values",
5700                 .usage = "arrayname bitwidth address count",
5701         },
5702         {
5703                 .name = "reset_nag",
5704                 .handler = handle_target_reset_nag,
5705                 .mode = COMMAND_ANY,
5706                 .help = "Nag after each reset about options that could have been "
5707                                 "enabled to improve performance. ",
5708                 .usage = "['enable'|'disable']",
5709         },
5710         {
5711                 .name = "ps",
5712                 .handler = handle_ps_command,
5713                 .mode = COMMAND_EXEC,
5714                 .help = "list all tasks ",
5715                 .usage = " ",
5716         },
5717
5718         COMMAND_REGISTRATION_DONE
5719 };
5720 static int target_register_user_commands(struct command_context *cmd_ctx)
5721 {
5722         int retval = ERROR_OK;
5723         retval = target_request_register_commands(cmd_ctx);
5724         if (retval != ERROR_OK)
5725                 return retval;
5726
5727         retval = trace_register_commands(cmd_ctx);
5728         if (retval != ERROR_OK)
5729                 return retval;
5730
5731
5732         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5733 }