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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   Copyright (C) 2011 Andreas Fritiofson                                 *
  24  *   andreas.fritiofson@gmail.com                                          *
  25  *                                                                         *
  26  *   This program is free software; you can redistribute it and/or modify  *
  27  *   it under the terms of the GNU General Public License as published by  *
  28  *   the Free Software Foundation; either version 2 of the License, or     *
  29  *   (at your option) any later version.                                   *
  30  *                                                                         *
  31  *   This program is distributed in the hope that it will be useful,       *
  32  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  33  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  34  *   GNU General Public License for more details.                          *
  35  *                                                                         *
  36  *   You should have received a copy of the GNU General Public License     *
  37  *   along with this program; if not, write to the                         *
  38  *   Free Software Foundation, Inc.,                                       *
  39  *   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 stm32_stlink_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         &stm32_stlink_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
 826         /* Set up working area. First word is write pointer, second word is read pointer,
 827          * rest is fifo data area. */
 828         uint32_t wp_addr = buffer_start;
 829         uint32_t rp_addr = buffer_start + 4;
 830         uint32_t fifo_start_addr = buffer_start + 8;
 831         uint32_t fifo_end_addr = buffer_start + buffer_size;
 832
 833         uint32_t wp = fifo_start_addr;
 834         uint32_t rp = fifo_start_addr;
 835
 836         /* validate block_size is 2^n */
 837         assert(!block_size || !(block_size & (block_size - 1)));
 838
 839         retval = target_write_u32(target, wp_addr, wp);
 840         if (retval != ERROR_OK)
 841                 return retval;
 842         retval = target_write_u32(target, rp_addr, rp);
 843         if (retval != ERROR_OK)
 844                 return retval;
 845
 846         /* Start up algorithm on target and let it idle while writing the first chunk */
 847         retval = target_start_algorithm(target, num_mem_params, mem_params,
 848                         num_reg_params, reg_params,
 849                         entry_point,
 850                         exit_point,
 851                         arch_info);
 852
 853         if (retval != ERROR_OK) {
 854                 LOG_ERROR("error starting target flash write algorithm");
 855                 return retval;
 856         }
 857
 858         while (count > 0) {
 859
 860                 retval = target_read_u32(target, rp_addr, &rp);
 861                 if (retval != ERROR_OK) {
 862                         LOG_ERROR("failed to get read pointer");
 863                         break;
 864                 }
 865
 866                 LOG_DEBUG("count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32, count, wp, rp);
 867
 868                 if (rp == 0) {
 869                         LOG_ERROR("flash write algorithm aborted by target");
 870                         retval = ERROR_FLASH_OPERATION_FAILED;
 871                         break;
 872                 }
 873
 874                 if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 875                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 876                         break;
 877                 }
 878
 879                 /* Count the number of bytes available in the fifo without
 880                  * crossing the wrap around. Make sure to not fill it completely,
 881                  * because that would make wp == rp and that's the empty condition. */
 882                 uint32_t thisrun_bytes;
 883                 if (rp > wp)
 884                         thisrun_bytes = rp - wp - block_size;
 885                 else if (rp > fifo_start_addr)
 886                         thisrun_bytes = fifo_end_addr - wp;
 887                 else
 888                         thisrun_bytes = fifo_end_addr - wp - block_size;
 889
 890                 if (thisrun_bytes == 0) {
 891                         /* Throttle polling a bit if transfer is (much) faster than flash
 892                          * programming. The exact delay shouldn't matter as long as it's
 893                          * less than buffer size / flash speed. This is very unlikely to
 894                          * run when using high latency connections such as USB. */
 895                         alive_sleep(10);
 896                         continue;
 897                 }
 898
 899                 /* Limit to the amount of data we actually want to write */
 900                 if (thisrun_bytes > count * block_size)
 901                         thisrun_bytes = count * block_size;
 902
 903                 /* Write data to fifo */
 904                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 905                 if (retval != ERROR_OK)
 906                         break;
 907
 908                 /* Update counters and wrap write pointer */
 909                 buffer += thisrun_bytes;
 910                 count -= thisrun_bytes / block_size;
 911                 wp += thisrun_bytes;
 912                 if (wp >= fifo_end_addr)
 913                         wp = fifo_start_addr;
 914
 915                 /* Store updated write pointer to target */
 916                 retval = target_write_u32(target, wp_addr, wp);
 917                 if (retval != ERROR_OK)
 918                         break;
 919         }
 920
 921         if (retval != ERROR_OK) {
 922                 /* abort flash write algorithm on target */
 923                 target_write_u32(target, wp_addr, 0);
 924         }
 925
 926         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
 927                         num_reg_params, reg_params,
 928                         exit_point,
 929                         10000,
 930                         arch_info);
 931
 932         if (retval2 != ERROR_OK) {
 933                 LOG_ERROR("error waiting for target flash write algorithm");
 934                 retval = retval2;
 935         }
 936
 937         return retval;
 938 }
 939
 940 int target_read_memory(struct target *target,
 941                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 942 {
 943         return target->type->read_memory(target, address, size, count, buffer);
 944 }
 945
 946 static int target_read_phys_memory(struct target *target,
 947                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 948 {
 949         return target->type->read_phys_memory(target, address, size, count, buffer);
 950 }
 951
 952 int target_write_memory(struct target *target,
 953                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 954 {
 955         return target->type->write_memory(target, address, size, count, buffer);
 956 }
 957
 958 static int target_write_phys_memory(struct target *target,
 959                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 960 {
 961         return target->type->write_phys_memory(target, address, size, count, buffer);
 962 }
 963
 964 int target_bulk_write_memory(struct target *target,
 965                 uint32_t address, uint32_t count, const uint8_t *buffer)
 966 {
 967         return target->type->bulk_write_memory(target, address, count, buffer);
 968 }
 969
 970 int target_add_breakpoint(struct target *target,
 971                 struct breakpoint *breakpoint)
 972 {
 973         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
 974                 LOG_WARNING("target %s is not halted", target->cmd_name);
 975                 return ERROR_TARGET_NOT_HALTED;
 976         }
 977         return target->type->add_breakpoint(target, breakpoint);
 978 }
 979
 980 int target_add_context_breakpoint(struct target *target,
 981                 struct breakpoint *breakpoint)
 982 {
 983         if (target->state != TARGET_HALTED) {
 984                 LOG_WARNING("target %s is not halted", target->cmd_name);
 985                 return ERROR_TARGET_NOT_HALTED;
 986         }
 987         return target->type->add_context_breakpoint(target, breakpoint);
 988 }
 989
 990 int target_add_hybrid_breakpoint(struct target *target,
 991                 struct breakpoint *breakpoint)
 992 {
 993         if (target->state != TARGET_HALTED) {
 994                 LOG_WARNING("target %s is not halted", target->cmd_name);
 995                 return ERROR_TARGET_NOT_HALTED;
 996         }
 997         return target->type->add_hybrid_breakpoint(target, breakpoint);
 998 }
 999
1000 int target_remove_breakpoint(struct target *target,
1001                 struct breakpoint *breakpoint)
1002 {
1003         return target->type->remove_breakpoint(target, breakpoint);
1004 }
1005
1006 int target_add_watchpoint(struct target *target,
1007                 struct watchpoint *watchpoint)
1008 {
1009         if (target->state != TARGET_HALTED) {
1010                 LOG_WARNING("target %s is not halted", target->cmd_name);
1011                 return ERROR_TARGET_NOT_HALTED;
1012         }
1013         return target->type->add_watchpoint(target, watchpoint);
1014 }
1015 int target_remove_watchpoint(struct target *target,
1016                 struct watchpoint *watchpoint)
1017 {
1018         return target->type->remove_watchpoint(target, watchpoint);
1019 }
1020
1021 int target_get_gdb_reg_list(struct target *target,
1022                 struct reg **reg_list[], int *reg_list_size)
1023 {
1024         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
1025 }
1026 int target_step(struct target *target,
1027                 int current, uint32_t address, int handle_breakpoints)
1028 {
1029         return target->type->step(target, current, address, handle_breakpoints);
1030 }
1031
1032 /**
1033  * Reset the @c examined flag for the given target.
1034  * Pure paranoia -- targets are zeroed on allocation.
1035  */
1036 static void target_reset_examined(struct target *target)
1037 {
1038         target->examined = false;
1039 }
1040
1041 static int err_read_phys_memory(struct target *target, uint32_t address,
1042                 uint32_t size, uint32_t count, uint8_t *buffer)
1043 {
1044         LOG_ERROR("Not implemented: %s", __func__);
1045         return ERROR_FAIL;
1046 }
1047
1048 static int err_write_phys_memory(struct target *target, uint32_t address,
1049                 uint32_t size, uint32_t count, const uint8_t *buffer)
1050 {
1051         LOG_ERROR("Not implemented: %s", __func__);
1052         return ERROR_FAIL;
1053 }
1054
1055 static int handle_target(void *priv);
1056
1057 static int target_init_one(struct command_context *cmd_ctx,
1058                 struct target *target)
1059 {
1060         target_reset_examined(target);
1061
1062         struct target_type *type = target->type;
1063         if (type->examine == NULL)
1064                 type->examine = default_examine;
1065
1066         if (type->check_reset == NULL)
1067                 type->check_reset = default_check_reset;
1068
1069         assert(type->init_target != NULL);
1070
1071         int retval = type->init_target(cmd_ctx, target);
1072         if (ERROR_OK != retval) {
1073                 LOG_ERROR("target '%s' init failed", target_name(target));
1074                 return retval;
1075         }
1076
1077         /**
1078          * @todo get rid of those *memory_imp() methods, now that all
1079          * callers are using target_*_memory() accessors ... and make
1080          * sure the "physical" paths handle the same issues.
1081          */
1082         /* a non-invasive way(in terms of patches) to add some code that
1083          * runs before the type->write/read_memory implementation
1084          */
1085         type->write_memory_imp = target->type->write_memory;
1086         type->write_memory = target_write_memory_imp;
1087
1088         type->read_memory_imp = target->type->read_memory;
1089         type->read_memory = target_read_memory_imp;
1090
1091         type->soft_reset_halt_imp = target->type->soft_reset_halt;
1092         type->soft_reset_halt = target_soft_reset_halt_imp;
1093
1094         /* Sanity-check MMU support ... stub in what we must, to help
1095          * implement it in stages, but warn if we need to do so.
1096          */
1097         if (type->mmu) {
1098                 if (type->write_phys_memory == NULL) {
1099                         LOG_ERROR("type '%s' is missing write_phys_memory",
1100                                         type->name);
1101                         type->write_phys_memory = err_write_phys_memory;
1102                 }
1103                 if (type->read_phys_memory == NULL) {
1104                         LOG_ERROR("type '%s' is missing read_phys_memory",
1105                                         type->name);
1106                         type->read_phys_memory = err_read_phys_memory;
1107                 }
1108                 if (type->virt2phys == NULL) {
1109                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1110                         type->virt2phys = identity_virt2phys;
1111                 }
1112         } else {
1113                 /* Make sure no-MMU targets all behave the same:  make no
1114                  * distinction between physical and virtual addresses, and
1115                  * ensure that virt2phys() is always an identity mapping.
1116                  */
1117                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1118                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1119
1120                 type->mmu = no_mmu;
1121                 type->write_phys_memory = type->write_memory;
1122                 type->read_phys_memory = type->read_memory;
1123                 type->virt2phys = identity_virt2phys;
1124         }
1125
1126         if (target->type->read_buffer == NULL)
1127                 target->type->read_buffer = target_read_buffer_default;
1128
1129         if (target->type->write_buffer == NULL)
1130                 target->type->write_buffer = target_write_buffer_default;
1131
1132         return ERROR_OK;
1133 }
1134
1135 static int target_init(struct command_context *cmd_ctx)
1136 {
1137         struct target *target;
1138         int retval;
1139
1140         for (target = all_targets; target; target = target->next) {
1141                 retval = target_init_one(cmd_ctx, target);
1142                 if (ERROR_OK != retval)
1143                         return retval;
1144         }
1145
1146         if (!all_targets)
1147                 return ERROR_OK;
1148
1149         retval = target_register_user_commands(cmd_ctx);
1150         if (ERROR_OK != retval)
1151                 return retval;
1152
1153         retval = target_register_timer_callback(&handle_target,
1154                         polling_interval, 1, cmd_ctx->interp);
1155         if (ERROR_OK != retval)
1156                 return retval;
1157
1158         return ERROR_OK;
1159 }
1160
1161 COMMAND_HANDLER(handle_target_init_command)
1162 {
1163         int retval;
1164
1165         if (CMD_ARGC != 0)
1166                 return ERROR_COMMAND_SYNTAX_ERROR;
1167
1168         static bool target_initialized;
1169         if (target_initialized) {
1170                 LOG_INFO("'target init' has already been called");
1171                 return ERROR_OK;
1172         }
1173         target_initialized = true;
1174
1175         retval = command_run_line(CMD_CTX, "init_targets");
1176         if (ERROR_OK != retval)
1177                 return retval;
1178
1179         retval = command_run_line(CMD_CTX, "init_board");
1180         if (ERROR_OK != retval)
1181                 return retval;
1182
1183         LOG_DEBUG("Initializing targets...");
1184         return target_init(CMD_CTX);
1185 }
1186
1187 int target_register_event_callback(int (*callback)(struct target *target,
1188                 enum target_event event, void *priv), void *priv)
1189 {
1190         struct target_event_callback **callbacks_p = &target_event_callbacks;
1191
1192         if (callback == NULL)
1193                 return ERROR_COMMAND_SYNTAX_ERROR;
1194
1195         if (*callbacks_p) {
1196                 while ((*callbacks_p)->next)
1197                         callbacks_p = &((*callbacks_p)->next);
1198                 callbacks_p = &((*callbacks_p)->next);
1199         }
1200
1201         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1202         (*callbacks_p)->callback = callback;
1203         (*callbacks_p)->priv = priv;
1204         (*callbacks_p)->next = NULL;
1205
1206         return ERROR_OK;
1207 }
1208
1209 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1210 {
1211         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1212         struct timeval now;
1213
1214         if (callback == NULL)
1215                 return ERROR_COMMAND_SYNTAX_ERROR;
1216
1217         if (*callbacks_p) {
1218                 while ((*callbacks_p)->next)
1219                         callbacks_p = &((*callbacks_p)->next);
1220                 callbacks_p = &((*callbacks_p)->next);
1221         }
1222
1223         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1224         (*callbacks_p)->callback = callback;
1225         (*callbacks_p)->periodic = periodic;
1226         (*callbacks_p)->time_ms = time_ms;
1227
1228         gettimeofday(&now, NULL);
1229         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1230         time_ms -= (time_ms % 1000);
1231         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1232         if ((*callbacks_p)->when.tv_usec > 1000000) {
1233                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1234                 (*callbacks_p)->when.tv_sec += 1;
1235         }
1236
1237         (*callbacks_p)->priv = priv;
1238         (*callbacks_p)->next = NULL;
1239
1240         return ERROR_OK;
1241 }
1242
1243 int target_unregister_event_callback(int (*callback)(struct target *target,
1244                 enum target_event event, void *priv), void *priv)
1245 {
1246         struct target_event_callback **p = &target_event_callbacks;
1247         struct target_event_callback *c = target_event_callbacks;
1248
1249         if (callback == NULL)
1250                 return ERROR_COMMAND_SYNTAX_ERROR;
1251
1252         while (c) {
1253                 struct target_event_callback *next = c->next;
1254                 if ((c->callback == callback) && (c->priv == priv)) {
1255                         *p = next;
1256                         free(c);
1257                         return ERROR_OK;
1258                 } else
1259                         p = &(c->next);
1260                 c = next;
1261         }
1262
1263         return ERROR_OK;
1264 }
1265
1266 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1267 {
1268         struct target_timer_callback **p = &target_timer_callbacks;
1269         struct target_timer_callback *c = target_timer_callbacks;
1270
1271         if (callback == NULL)
1272                 return ERROR_COMMAND_SYNTAX_ERROR;
1273
1274         while (c) {
1275                 struct target_timer_callback *next = c->next;
1276                 if ((c->callback == callback) && (c->priv == priv)) {
1277                         *p = next;
1278                         free(c);
1279                         return ERROR_OK;
1280                 } else
1281                         p = &(c->next);
1282                 c = next;
1283         }
1284
1285         return ERROR_OK;
1286 }
1287
1288 int target_call_event_callbacks(struct target *target, enum target_event event)
1289 {
1290         struct target_event_callback *callback = target_event_callbacks;
1291         struct target_event_callback *next_callback;
1292
1293         if (event == TARGET_EVENT_HALTED) {
1294                 /* execute early halted first */
1295                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1296         }
1297
1298         LOG_DEBUG("target event %i (%s)", event,
1299                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1300
1301         target_handle_event(target, event);
1302
1303         while (callback) {
1304                 next_callback = callback->next;
1305                 callback->callback(target, event, callback->priv);
1306                 callback = next_callback;
1307         }
1308
1309         return ERROR_OK;
1310 }
1311
1312 static int target_timer_callback_periodic_restart(
1313                 struct target_timer_callback *cb, struct timeval *now)
1314 {
1315         int time_ms = cb->time_ms;
1316         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1317         time_ms -= (time_ms % 1000);
1318         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1319         if (cb->when.tv_usec > 1000000) {
1320                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1321                 cb->when.tv_sec += 1;
1322         }
1323         return ERROR_OK;
1324 }
1325
1326 static int target_call_timer_callback(struct target_timer_callback *cb,
1327                 struct timeval *now)
1328 {
1329         cb->callback(cb->priv);
1330
1331         if (cb->periodic)
1332                 return target_timer_callback_periodic_restart(cb, now);
1333
1334         return target_unregister_timer_callback(cb->callback, cb->priv);
1335 }
1336
1337 static int target_call_timer_callbacks_check_time(int checktime)
1338 {
1339         keep_alive();
1340
1341         struct timeval now;
1342         gettimeofday(&now, NULL);
1343
1344         struct target_timer_callback *callback = target_timer_callbacks;
1345         while (callback) {
1346                 /* cleaning up may unregister and free this callback */
1347                 struct target_timer_callback *next_callback = callback->next;
1348
1349                 bool call_it = callback->callback &&
1350                         ((!checktime && callback->periodic) ||
1351                           now.tv_sec > callback->when.tv_sec ||
1352                          (now.tv_sec == callback->when.tv_sec &&
1353                           now.tv_usec >= callback->when.tv_usec));
1354
1355                 if (call_it) {
1356                         int retval = target_call_timer_callback(callback, &now);
1357                         if (retval != ERROR_OK)
1358                                 return retval;
1359                 }
1360
1361                 callback = next_callback;
1362         }
1363
1364         return ERROR_OK;
1365 }
1366
1367 int target_call_timer_callbacks(void)
1368 {
1369         return target_call_timer_callbacks_check_time(1);
1370 }
1371
1372 /* invoke periodic callbacks immediately */
1373 int target_call_timer_callbacks_now(void)
1374 {
1375         return target_call_timer_callbacks_check_time(0);
1376 }
1377
1378 /* Prints the working area layout for debug purposes */
1379 static void print_wa_layout(struct target *target)
1380 {
1381         struct working_area *c = target->working_areas;
1382
1383         while (c) {
1384                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1385                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1386                         c->address, c->address + c->size - 1, c->size);
1387                 c = c->next;
1388         }
1389 }
1390
1391 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1392 static void target_split_working_area(struct working_area *area, uint32_t size)
1393 {
1394         assert(area->free); /* Shouldn't split an allocated area */
1395         assert(size <= area->size); /* Caller should guarantee this */
1396
1397         /* Split only if not already the right size */
1398         if (size < area->size) {
1399                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1400
1401                 if (new_wa == NULL)
1402                         return;
1403
1404                 new_wa->next = area->next;
1405                 new_wa->size = area->size - size;
1406                 new_wa->address = area->address + size;
1407                 new_wa->backup = NULL;
1408                 new_wa->user = NULL;
1409                 new_wa->free = true;
1410
1411                 area->next = new_wa;
1412                 area->size = size;
1413
1414                 /* If backup memory was allocated to this area, it has the wrong size
1415                  * now so free it and it will be reallocated if/when needed */
1416                 if (area->backup) {
1417                         free(area->backup);
1418                         area->backup = NULL;
1419                 }
1420         }
1421 }
1422
1423 /* Merge all adjacent free areas into one */
1424 static void target_merge_working_areas(struct target *target)
1425 {
1426         struct working_area *c = target->working_areas;
1427
1428         while (c && c->next) {
1429                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1430
1431                 /* Find two adjacent free areas */
1432                 if (c->free && c->next->free) {
1433                         /* Merge the last into the first */
1434                         c->size += c->next->size;
1435
1436                         /* Remove the last */
1437                         struct working_area *to_be_freed = c->next;
1438                         c->next = c->next->next;
1439                         if (to_be_freed->backup)
1440                                 free(to_be_freed->backup);
1441                         free(to_be_freed);
1442
1443                         /* If backup memory was allocated to the remaining area, it's has
1444                          * the wrong size now */
1445                         if (c->backup) {
1446                                 free(c->backup);
1447                                 c->backup = NULL;
1448                         }
1449                 } else {
1450                         c = c->next;
1451                 }
1452         }
1453 }
1454
1455 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1456 {
1457         /* Reevaluate working area address based on MMU state*/
1458         if (target->working_areas == NULL) {
1459                 int retval;
1460                 int enabled;
1461
1462                 retval = target->type->mmu(target, &enabled);
1463                 if (retval != ERROR_OK)
1464                         return retval;
1465
1466                 if (!enabled) {
1467                         if (target->working_area_phys_spec) {
1468                                 LOG_DEBUG("MMU disabled, using physical "
1469                                         "address for working memory 0x%08"PRIx32,
1470                                         target->working_area_phys);
1471                                 target->working_area = target->working_area_phys;
1472                         } else {
1473                                 LOG_ERROR("No working memory available. "
1474                                         "Specify -work-area-phys to target.");
1475                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1476                         }
1477                 } else {
1478                         if (target->working_area_virt_spec) {
1479                                 LOG_DEBUG("MMU enabled, using virtual "
1480                                         "address for working memory 0x%08"PRIx32,
1481                                         target->working_area_virt);
1482                                 target->working_area = target->working_area_virt;
1483                         } else {
1484                                 LOG_ERROR("No working memory available. "
1485                                         "Specify -work-area-virt to target.");
1486                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1487                         }
1488                 }
1489
1490                 /* Set up initial working area on first call */
1491                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1492                 if (new_wa) {
1493                         new_wa->next = NULL;
1494                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1495                         new_wa->address = target->working_area;
1496                         new_wa->backup = NULL;
1497                         new_wa->user = NULL;
1498                         new_wa->free = true;
1499                 }
1500
1501                 target->working_areas = new_wa;
1502         }
1503
1504         /* only allocate multiples of 4 byte */
1505         if (size % 4)
1506                 size = (size + 3) & (~3UL);
1507
1508         struct working_area *c = target->working_areas;
1509
1510         /* Find the first large enough working area */
1511         while (c) {
1512                 if (c->free && c->size >= size)
1513                         break;
1514                 c = c->next;
1515         }
1516
1517         if (c == NULL)
1518                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1519
1520         /* Split the working area into the requested size */
1521         target_split_working_area(c, size);
1522
1523         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1524
1525         if (target->backup_working_area) {
1526                 if (c->backup == NULL) {
1527                         c->backup = malloc(c->size);
1528                         if (c->backup == NULL)
1529                                 return ERROR_FAIL;
1530                 }
1531
1532                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1533                 if (retval != ERROR_OK)
1534                         return retval;
1535         }
1536
1537         /* mark as used, and return the new (reused) area */
1538         c->free = false;
1539         *area = c;
1540
1541         /* user pointer */
1542         c->user = area;
1543
1544         print_wa_layout(target);
1545
1546         return ERROR_OK;
1547 }
1548
1549 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1550 {
1551         int retval;
1552
1553         retval = target_alloc_working_area_try(target, size, area);
1554         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1555                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1556         return retval;
1557
1558 }
1559
1560 static int target_restore_working_area(struct target *target, struct working_area *area)
1561 {
1562         int retval = ERROR_OK;
1563
1564         if (target->backup_working_area && area->backup != NULL) {
1565                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1566                 if (retval != ERROR_OK)
1567                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1568                                         area->size, area->address);
1569         }
1570
1571         return retval;
1572 }
1573
1574 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1575 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1576 {
1577         int retval = ERROR_OK;
1578
1579         if (area->free)
1580                 return retval;
1581
1582         if (restore) {
1583                 retval = target_restore_working_area(target, area);
1584                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1585                 if (retval != ERROR_OK)
1586                         return retval;
1587         }
1588
1589         area->free = true;
1590
1591         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1592                         area->size, area->address);
1593
1594         /* mark user pointer invalid */
1595         /* TODO: Is this really safe? It points to some previous caller's memory.
1596          * How could we know that the area pointer is still in that place and not
1597          * some other vital data? What's the purpose of this, anyway? */
1598         *area->user = NULL;
1599         area->user = NULL;
1600
1601         target_merge_working_areas(target);
1602
1603         print_wa_layout(target);
1604
1605         return retval;
1606 }
1607
1608 int target_free_working_area(struct target *target, struct working_area *area)
1609 {
1610         return target_free_working_area_restore(target, area, 1);
1611 }
1612
1613 /* free resources and restore memory, if restoring memory fails,
1614  * free up resources anyway
1615  */
1616 static void target_free_all_working_areas_restore(struct target *target, int restore)
1617 {
1618         struct working_area *c = target->working_areas;
1619
1620         LOG_DEBUG("freeing all working areas");
1621
1622         /* Loop through all areas, restoring the allocated ones and marking them as free */
1623         while (c) {
1624                 if (!c->free) {
1625                         if (restore)
1626                                 target_restore_working_area(target, c);
1627                         c->free = true;
1628                         *c->user = NULL; /* Same as above */
1629                         c->user = NULL;
1630                 }
1631                 c = c->next;
1632         }
1633
1634         /* Run a merge pass to combine all areas into one */
1635         target_merge_working_areas(target);
1636
1637         print_wa_layout(target);
1638 }
1639
1640 void target_free_all_working_areas(struct target *target)
1641 {
1642         target_free_all_working_areas_restore(target, 1);
1643 }
1644
1645 /* Find the largest number of bytes that can be allocated */
1646 uint32_t target_get_working_area_avail(struct target *target)
1647 {
1648         struct working_area *c = target->working_areas;
1649         uint32_t max_size = 0;
1650
1651         if (c == NULL)
1652                 return target->working_area_size;
1653
1654         while (c) {
1655                 if (c->free && max_size < c->size)
1656                         max_size = c->size;
1657
1658                 c = c->next;
1659         }
1660
1661         return max_size;
1662 }
1663
1664 int target_arch_state(struct target *target)
1665 {
1666         int retval;
1667         if (target == NULL) {
1668                 LOG_USER("No target has been configured");
1669                 return ERROR_OK;
1670         }
1671
1672         LOG_USER("target state: %s", target_state_name(target));
1673
1674         if (target->state != TARGET_HALTED)
1675                 return ERROR_OK;
1676
1677         retval = target->type->arch_state(target);
1678         return retval;
1679 }
1680
1681 /* Single aligned words are guaranteed to use 16 or 32 bit access
1682  * mode respectively, otherwise data is handled as quickly as
1683  * possible
1684  */
1685 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1686 {
1687         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1688                         (int)size, (unsigned)address);
1689
1690         if (!target_was_examined(target)) {
1691                 LOG_ERROR("Target not examined yet");
1692                 return ERROR_FAIL;
1693         }
1694
1695         if (size == 0)
1696                 return ERROR_OK;
1697
1698         if ((address + size - 1) < address) {
1699                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1700                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1701                                   (unsigned)address,
1702                                   (unsigned)size);
1703                 return ERROR_FAIL;
1704         }
1705
1706         return target->type->write_buffer(target, address, size, buffer);
1707 }
1708
1709 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1710 {
1711         int retval = ERROR_OK;
1712
1713         if (((address % 2) == 0) && (size == 2))
1714                 return target_write_memory(target, address, 2, 1, buffer);
1715
1716         /* handle unaligned head bytes */
1717         if (address % 4) {
1718                 uint32_t unaligned = 4 - (address % 4);
1719
1720                 if (unaligned > size)
1721                         unaligned = size;
1722
1723                 retval = target_write_memory(target, address, 1, unaligned, buffer);
1724                 if (retval != ERROR_OK)
1725                         return retval;
1726
1727                 buffer += unaligned;
1728                 address += unaligned;
1729                 size -= unaligned;
1730         }
1731
1732         /* handle aligned words */
1733         if (size >= 4) {
1734                 int aligned = size - (size % 4);
1735
1736                 /* use bulk writes above a certain limit. This may have to be changed */
1737                 if (aligned > 128) {
1738                         retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer);
1739                         if (retval != ERROR_OK)
1740                                 return retval;
1741                 } else {
1742                         retval = target_write_memory(target, address, 4, aligned / 4, buffer);
1743                         if (retval != ERROR_OK)
1744                                 return retval;
1745                 }
1746
1747                 buffer += aligned;
1748                 address += aligned;
1749                 size -= aligned;
1750         }
1751
1752         /* handle tail writes of less than 4 bytes */
1753         if (size > 0) {
1754                 retval = target_write_memory(target, address, 1, size, buffer);
1755                 if (retval != ERROR_OK)
1756                         return retval;
1757         }
1758
1759         return retval;
1760 }
1761
1762 /* Single aligned words are guaranteed to use 16 or 32 bit access
1763  * mode respectively, otherwise data is handled as quickly as
1764  * possible
1765  */
1766 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1767 {
1768         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1769                           (int)size, (unsigned)address);
1770
1771         if (!target_was_examined(target)) {
1772                 LOG_ERROR("Target not examined yet");
1773                 return ERROR_FAIL;
1774         }
1775
1776         if (size == 0)
1777                 return ERROR_OK;
1778
1779         if ((address + size - 1) < address) {
1780                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1781                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1782                                   address,
1783                                   size);
1784                 return ERROR_FAIL;
1785         }
1786
1787         return target->type->read_buffer(target, address, size, buffer);
1788 }
1789
1790 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1791 {
1792         int retval = ERROR_OK;
1793
1794         if (((address % 2) == 0) && (size == 2))
1795                 return target_read_memory(target, address, 2, 1, buffer);
1796
1797         /* handle unaligned head bytes */
1798         if (address % 4) {
1799                 uint32_t unaligned = 4 - (address % 4);
1800
1801                 if (unaligned > size)
1802                         unaligned = size;
1803
1804                 retval = target_read_memory(target, address, 1, unaligned, buffer);
1805                 if (retval != ERROR_OK)
1806                         return retval;
1807
1808                 buffer += unaligned;
1809                 address += unaligned;
1810                 size -= unaligned;
1811         }
1812
1813         /* handle aligned words */
1814         if (size >= 4) {
1815                 int aligned = size - (size % 4);
1816
1817                 retval = target_read_memory(target, address, 4, aligned / 4, buffer);
1818                 if (retval != ERROR_OK)
1819                         return retval;
1820
1821                 buffer += aligned;
1822                 address += aligned;
1823                 size -= aligned;
1824         }
1825
1826         /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
1827         if (size        >= 2) {
1828                 int aligned = size - (size % 2);
1829                 retval = target_read_memory(target, address, 2, aligned / 2, buffer);
1830                 if (retval != ERROR_OK)
1831                         return retval;
1832
1833                 buffer += aligned;
1834                 address += aligned;
1835                 size -= aligned;
1836         }
1837         /* handle tail writes of less than 4 bytes */
1838         if (size > 0) {
1839                 retval = target_read_memory(target, address, 1, size, buffer);
1840                 if (retval != ERROR_OK)
1841                         return retval;
1842         }
1843
1844         return ERROR_OK;
1845 }
1846
1847 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1848 {
1849         uint8_t *buffer;
1850         int retval;
1851         uint32_t i;
1852         uint32_t checksum = 0;
1853         if (!target_was_examined(target)) {
1854                 LOG_ERROR("Target not examined yet");
1855                 return ERROR_FAIL;
1856         }
1857
1858         retval = target->type->checksum_memory(target, address, size, &checksum);
1859         if (retval != ERROR_OK) {
1860                 buffer = malloc(size);
1861                 if (buffer == NULL) {
1862                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1863                         return ERROR_COMMAND_SYNTAX_ERROR;
1864                 }
1865                 retval = target_read_buffer(target, address, size, buffer);
1866                 if (retval != ERROR_OK) {
1867                         free(buffer);
1868                         return retval;
1869                 }
1870
1871                 /* convert to target endianness */
1872                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
1873                         uint32_t target_data;
1874                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1875                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1876                 }
1877
1878                 retval = image_calculate_checksum(buffer, size, &checksum);
1879                 free(buffer);
1880         }
1881
1882         *crc = checksum;
1883
1884         return retval;
1885 }
1886
1887 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1888 {
1889         int retval;
1890         if (!target_was_examined(target)) {
1891                 LOG_ERROR("Target not examined yet");
1892                 return ERROR_FAIL;
1893         }
1894
1895         if (target->type->blank_check_memory == 0)
1896                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1897
1898         retval = target->type->blank_check_memory(target, address, size, blank);
1899
1900         return retval;
1901 }
1902
1903 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1904 {
1905         uint8_t value_buf[4];
1906         if (!target_was_examined(target)) {
1907                 LOG_ERROR("Target not examined yet");
1908                 return ERROR_FAIL;
1909         }
1910
1911         int retval = target_read_memory(target, address, 4, 1, value_buf);
1912
1913         if (retval == ERROR_OK) {
1914                 *value = target_buffer_get_u32(target, value_buf);
1915                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1916                                   address,
1917                                   *value);
1918         } else {
1919                 *value = 0x0;
1920                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1921                                   address);
1922         }
1923
1924         return retval;
1925 }
1926
1927 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1928 {
1929         uint8_t value_buf[2];
1930         if (!target_was_examined(target)) {
1931                 LOG_ERROR("Target not examined yet");
1932                 return ERROR_FAIL;
1933         }
1934
1935         int retval = target_read_memory(target, address, 2, 1, value_buf);
1936
1937         if (retval == ERROR_OK) {
1938                 *value = target_buffer_get_u16(target, value_buf);
1939                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1940                                   address,
1941                                   *value);
1942         } else {
1943                 *value = 0x0;
1944                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1945                                   address);
1946         }
1947
1948         return retval;
1949 }
1950
1951 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1952 {
1953         int retval = target_read_memory(target, address, 1, 1, value);
1954         if (!target_was_examined(target)) {
1955                 LOG_ERROR("Target not examined yet");
1956                 return ERROR_FAIL;
1957         }
1958
1959         if (retval == ERROR_OK) {
1960                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1961                                   address,
1962                                   *value);
1963         } else {
1964                 *value = 0x0;
1965                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1966                                   address);
1967         }
1968
1969         return retval;
1970 }
1971
1972 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1973 {
1974         int retval;
1975         uint8_t value_buf[4];
1976         if (!target_was_examined(target)) {
1977                 LOG_ERROR("Target not examined yet");
1978                 return ERROR_FAIL;
1979         }
1980
1981         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1982                           address,
1983                           value);
1984
1985         target_buffer_set_u32(target, value_buf, value);
1986         retval = target_write_memory(target, address, 4, 1, value_buf);
1987         if (retval != ERROR_OK)
1988                 LOG_DEBUG("failed: %i", retval);
1989
1990         return retval;
1991 }
1992
1993 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
1994 {
1995         int retval;
1996         uint8_t value_buf[2];
1997         if (!target_was_examined(target)) {
1998                 LOG_ERROR("Target not examined yet");
1999                 return ERROR_FAIL;
2000         }
2001
2002         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2003                           address,
2004                           value);
2005
2006         target_buffer_set_u16(target, value_buf, value);
2007         retval = target_write_memory(target, address, 2, 1, value_buf);
2008         if (retval != ERROR_OK)
2009                 LOG_DEBUG("failed: %i", retval);
2010
2011         return retval;
2012 }
2013
2014 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2015 {
2016         int retval;
2017         if (!target_was_examined(target)) {
2018                 LOG_ERROR("Target not examined yet");
2019                 return ERROR_FAIL;
2020         }
2021
2022         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2023                           address, value);
2024
2025         retval = target_write_memory(target, address, 1, 1, &value);
2026         if (retval != ERROR_OK)
2027                 LOG_DEBUG("failed: %i", retval);
2028
2029         return retval;
2030 }
2031
2032 static int find_target(struct command_context *cmd_ctx, const char *name)
2033 {
2034         struct target *target = get_target(name);
2035         if (target == NULL) {
2036                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2037                 return ERROR_FAIL;
2038         }
2039         if (!target->tap->enabled) {
2040                 LOG_USER("Target: TAP %s is disabled, "
2041                          "can't be the current target\n",
2042                          target->tap->dotted_name);
2043                 return ERROR_FAIL;
2044         }
2045
2046         cmd_ctx->current_target = target->target_number;
2047         return ERROR_OK;
2048 }
2049
2050
2051 COMMAND_HANDLER(handle_targets_command)
2052 {
2053         int retval = ERROR_OK;
2054         if (CMD_ARGC == 1) {
2055                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2056                 if (retval == ERROR_OK) {
2057                         /* we're done! */
2058                         return retval;
2059                 }
2060         }
2061
2062         struct target *target = all_targets;
2063         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2064         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2065         while (target) {
2066                 const char *state;
2067                 char marker = ' ';
2068
2069                 if (target->tap->enabled)
2070                         state = target_state_name(target);
2071                 else
2072                         state = "tap-disabled";
2073
2074                 if (CMD_CTX->current_target == target->target_number)
2075                         marker = '*';
2076
2077                 /* keep columns lined up to match the headers above */
2078                 command_print(CMD_CTX,
2079                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2080                                 target->target_number,
2081                                 marker,
2082                                 target_name(target),
2083                                 target_type_name(target),
2084                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2085                                         target->endianness)->name,
2086                                 target->tap->dotted_name,
2087                                 state);
2088                 target = target->next;
2089         }
2090
2091         return retval;
2092 }
2093
2094 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2095
2096 static int powerDropout;
2097 static int srstAsserted;
2098
2099 static int runPowerRestore;
2100 static int runPowerDropout;
2101 static int runSrstAsserted;
2102 static int runSrstDeasserted;
2103
2104 static int sense_handler(void)
2105 {
2106         static int prevSrstAsserted;
2107         static int prevPowerdropout;
2108
2109         int retval = jtag_power_dropout(&powerDropout);
2110         if (retval != ERROR_OK)
2111                 return retval;
2112
2113         int powerRestored;
2114         powerRestored = prevPowerdropout && !powerDropout;
2115         if (powerRestored)
2116                 runPowerRestore = 1;
2117
2118         long long current = timeval_ms();
2119         static long long lastPower;
2120         int waitMore = lastPower + 2000 > current;
2121         if (powerDropout && !waitMore) {
2122                 runPowerDropout = 1;
2123                 lastPower = current;
2124         }
2125
2126         retval = jtag_srst_asserted(&srstAsserted);
2127         if (retval != ERROR_OK)
2128                 return retval;
2129
2130         int srstDeasserted;
2131         srstDeasserted = prevSrstAsserted && !srstAsserted;
2132
2133         static long long lastSrst;
2134         waitMore = lastSrst + 2000 > current;
2135         if (srstDeasserted && !waitMore) {
2136                 runSrstDeasserted = 1;
2137                 lastSrst = current;
2138         }
2139
2140         if (!prevSrstAsserted && srstAsserted)
2141                 runSrstAsserted = 1;
2142
2143         prevSrstAsserted = srstAsserted;
2144         prevPowerdropout = powerDropout;
2145
2146         if (srstDeasserted || powerRestored) {
2147                 /* Other than logging the event we can't do anything here.
2148                  * Issuing a reset is a particularly bad idea as we might
2149                  * be inside a reset already.
2150                  */
2151         }
2152
2153         return ERROR_OK;
2154 }
2155
2156 static int backoff_times;
2157 static int backoff_count;
2158
2159 /* process target state changes */
2160 static int handle_target(void *priv)
2161 {
2162         Jim_Interp *interp = (Jim_Interp *)priv;
2163         int retval = ERROR_OK;
2164
2165         if (!is_jtag_poll_safe()) {
2166                 /* polling is disabled currently */
2167                 return ERROR_OK;
2168         }
2169
2170         /* we do not want to recurse here... */
2171         static int recursive;
2172         if (!recursive) {
2173                 recursive = 1;
2174                 sense_handler();
2175                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2176                  * We need to avoid an infinite loop/recursion here and we do that by
2177                  * clearing the flags after running these events.
2178                  */
2179                 int did_something = 0;
2180                 if (runSrstAsserted) {
2181                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2182                         Jim_Eval(interp, "srst_asserted");
2183                         did_something = 1;
2184                 }
2185                 if (runSrstDeasserted) {
2186                         Jim_Eval(interp, "srst_deasserted");
2187                         did_something = 1;
2188                 }
2189                 if (runPowerDropout) {
2190                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2191                         Jim_Eval(interp, "power_dropout");
2192                         did_something = 1;
2193                 }
2194                 if (runPowerRestore) {
2195                         Jim_Eval(interp, "power_restore");
2196                         did_something = 1;
2197                 }
2198
2199                 if (did_something) {
2200                         /* clear detect flags */
2201                         sense_handler();
2202                 }
2203
2204                 /* clear action flags */
2205
2206                 runSrstAsserted = 0;
2207                 runSrstDeasserted = 0;
2208                 runPowerRestore = 0;
2209                 runPowerDropout = 0;
2210
2211                 recursive = 0;
2212         }
2213
2214         if (backoff_times > backoff_count) {
2215                 /* do not poll this time as we failed previously */
2216                 backoff_count++;
2217                 return ERROR_OK;
2218         }
2219         backoff_count = 0;
2220
2221         /* Poll targets for state changes unless that's globally disabled.
2222          * Skip targets that are currently disabled.
2223          */
2224         for (struct target *target = all_targets;
2225                         is_jtag_poll_safe() && target;
2226                         target = target->next) {
2227                 if (!target->tap->enabled)
2228                         continue;
2229
2230                 /* only poll target if we've got power and srst isn't asserted */
2231                 if (!powerDropout && !srstAsserted) {
2232                         /* polling may fail silently until the target has been examined */
2233                         retval = target_poll(target);
2234                         if (retval != ERROR_OK) {
2235                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2236                                 if (backoff_times * polling_interval < 5000) {
2237                                         backoff_times *= 2;
2238                                         backoff_times++;
2239                                 }
2240                                 LOG_USER("Polling target failed, GDB will be halted. Polling again in %dms",
2241                                                 backoff_times * polling_interval);
2242
2243                                 /* Tell GDB to halt the debugger. This allows the user to
2244                                  * run monitor commands to handle the situation.
2245                                  */
2246                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2247                                 return retval;
2248                         }
2249                         /* Since we succeeded, we reset backoff count */
2250                         if (backoff_times > 0)
2251                                 LOG_USER("Polling succeeded again");
2252                         backoff_times = 0;
2253                 }
2254         }
2255
2256         return retval;
2257 }
2258
2259 COMMAND_HANDLER(handle_reg_command)
2260 {
2261         struct target *target;
2262         struct reg *reg = NULL;
2263         unsigned count = 0;
2264         char *value;
2265
2266         LOG_DEBUG("-");
2267
2268         target = get_current_target(CMD_CTX);
2269
2270         /* list all available registers for the current target */
2271         if (CMD_ARGC == 0) {
2272                 struct reg_cache *cache = target->reg_cache;
2273
2274                 count = 0;
2275                 while (cache) {
2276                         unsigned i;
2277
2278                         command_print(CMD_CTX, "===== %s", cache->name);
2279
2280                         for (i = 0, reg = cache->reg_list;
2281                                         i < cache->num_regs;
2282                                         i++, reg++, count++) {
2283                                 /* only print cached values if they are valid */
2284                                 if (reg->valid) {
2285                                         value = buf_to_str(reg->value,
2286                                                         reg->size, 16);
2287                                         command_print(CMD_CTX,
2288                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2289                                                         count, reg->name,
2290                                                         reg->size, value,
2291                                                         reg->dirty
2292                                                                 ? " (dirty)"
2293                                                                 : "");
2294                                         free(value);
2295                                 } else {
2296                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2297                                                           count, reg->name,
2298                                                           reg->size) ;
2299                                 }
2300                         }
2301                         cache = cache->next;
2302                 }
2303
2304                 return ERROR_OK;
2305         }
2306
2307         /* access a single register by its ordinal number */
2308         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2309                 unsigned num;
2310                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2311
2312                 struct reg_cache *cache = target->reg_cache;
2313                 count = 0;
2314                 while (cache) {
2315                         unsigned i;
2316                         for (i = 0; i < cache->num_regs; i++) {
2317                                 if (count++ == num) {
2318                                         reg = &cache->reg_list[i];
2319                                         break;
2320                                 }
2321                         }
2322                         if (reg)
2323                                 break;
2324                         cache = cache->next;
2325                 }
2326
2327                 if (!reg) {
2328                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2329                                         "has only %i registers (0 - %i)", num, count, count - 1);
2330                         return ERROR_OK;
2331                 }
2332         } else {
2333                 /* access a single register by its name */
2334                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2335
2336                 if (!reg) {
2337                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2338                         return ERROR_OK;
2339                 }
2340         }
2341
2342         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2343
2344         /* display a register */
2345         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2346                         && (CMD_ARGV[1][0] <= '9')))) {
2347                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2348                         reg->valid = 0;
2349
2350                 if (reg->valid == 0)
2351                         reg->type->get(reg);
2352                 value = buf_to_str(reg->value, reg->size, 16);
2353                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2354                 free(value);
2355                 return ERROR_OK;
2356         }
2357
2358         /* set register value */
2359         if (CMD_ARGC == 2) {
2360                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2361                 if (buf == NULL)
2362                         return ERROR_FAIL;
2363                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2364
2365                 reg->type->set(reg, buf);
2366
2367                 value = buf_to_str(reg->value, reg->size, 16);
2368                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2369                 free(value);
2370
2371                 free(buf);
2372
2373                 return ERROR_OK;
2374         }
2375
2376         return ERROR_COMMAND_SYNTAX_ERROR;
2377 }
2378
2379 COMMAND_HANDLER(handle_poll_command)
2380 {
2381         int retval = ERROR_OK;
2382         struct target *target = get_current_target(CMD_CTX);
2383
2384         if (CMD_ARGC == 0) {
2385                 command_print(CMD_CTX, "background polling: %s",
2386                                 jtag_poll_get_enabled() ? "on" : "off");
2387                 command_print(CMD_CTX, "TAP: %s (%s)",
2388                                 target->tap->dotted_name,
2389                                 target->tap->enabled ? "enabled" : "disabled");
2390                 if (!target->tap->enabled)
2391                         return ERROR_OK;
2392                 retval = target_poll(target);
2393                 if (retval != ERROR_OK)
2394                         return retval;
2395                 retval = target_arch_state(target);
2396                 if (retval != ERROR_OK)
2397                         return retval;
2398         } else if (CMD_ARGC == 1) {
2399                 bool enable;
2400                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2401                 jtag_poll_set_enabled(enable);
2402         } else
2403                 return ERROR_COMMAND_SYNTAX_ERROR;
2404
2405         return retval;
2406 }
2407
2408 COMMAND_HANDLER(handle_wait_halt_command)
2409 {
2410         if (CMD_ARGC > 1)
2411                 return ERROR_COMMAND_SYNTAX_ERROR;
2412
2413         unsigned ms = 5000;
2414         if (1 == CMD_ARGC) {
2415                 int retval = parse_uint(CMD_ARGV[0], &ms);
2416                 if (ERROR_OK != retval)
2417                         return ERROR_COMMAND_SYNTAX_ERROR;
2418                 /* convert seconds (given) to milliseconds (needed) */
2419                 ms *= 1000;
2420         }
2421
2422         struct target *target = get_current_target(CMD_CTX);
2423         return target_wait_state(target, TARGET_HALTED, ms);
2424 }
2425
2426 /* wait for target state to change. The trick here is to have a low
2427  * latency for short waits and not to suck up all the CPU time
2428  * on longer waits.
2429  *
2430  * After 500ms, keep_alive() is invoked
2431  */
2432 int target_wait_state(struct target *target, enum target_state state, int ms)
2433 {
2434         int retval;
2435         long long then = 0, cur;
2436         int once = 1;
2437
2438         for (;;) {
2439                 retval = target_poll(target);
2440                 if (retval != ERROR_OK)
2441                         return retval;
2442                 if (target->state == state)
2443                         break;
2444                 cur = timeval_ms();
2445                 if (once) {
2446                         once = 0;
2447                         then = timeval_ms();
2448                         LOG_DEBUG("waiting for target %s...",
2449                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2450                 }
2451
2452                 if (cur-then > 500)
2453                         keep_alive();
2454
2455                 if ((cur-then) > ms) {
2456                         LOG_ERROR("timed out while waiting for target %s",
2457                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2458                         return ERROR_FAIL;
2459                 }
2460         }
2461
2462         return ERROR_OK;
2463 }
2464
2465 COMMAND_HANDLER(handle_halt_command)
2466 {
2467         LOG_DEBUG("-");
2468
2469         struct target *target = get_current_target(CMD_CTX);
2470         int retval = target_halt(target);
2471         if (ERROR_OK != retval)
2472                 return retval;
2473
2474         if (CMD_ARGC == 1) {
2475                 unsigned wait_local;
2476                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2477                 if (ERROR_OK != retval)
2478                         return ERROR_COMMAND_SYNTAX_ERROR;
2479                 if (!wait_local)
2480                         return ERROR_OK;
2481         }
2482
2483         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2484 }
2485
2486 COMMAND_HANDLER(handle_soft_reset_halt_command)
2487 {
2488         struct target *target = get_current_target(CMD_CTX);
2489
2490         LOG_USER("requesting target halt and executing a soft reset");
2491
2492         target->type->soft_reset_halt(target);
2493
2494         return ERROR_OK;
2495 }
2496
2497 COMMAND_HANDLER(handle_reset_command)
2498 {
2499         if (CMD_ARGC > 1)
2500                 return ERROR_COMMAND_SYNTAX_ERROR;
2501
2502         enum target_reset_mode reset_mode = RESET_RUN;
2503         if (CMD_ARGC == 1) {
2504                 const Jim_Nvp *n;
2505                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2506                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2507                         return ERROR_COMMAND_SYNTAX_ERROR;
2508                 reset_mode = n->value;
2509         }
2510
2511         /* reset *all* targets */
2512         return target_process_reset(CMD_CTX, reset_mode);
2513 }
2514
2515
2516 COMMAND_HANDLER(handle_resume_command)
2517 {
2518         int current = 1;
2519         if (CMD_ARGC > 1)
2520                 return ERROR_COMMAND_SYNTAX_ERROR;
2521
2522         struct target *target = get_current_target(CMD_CTX);
2523
2524         /* with no CMD_ARGV, resume from current pc, addr = 0,
2525          * with one arguments, addr = CMD_ARGV[0],
2526          * handle breakpoints, not debugging */
2527         uint32_t addr = 0;
2528         if (CMD_ARGC == 1) {
2529                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2530                 current = 0;
2531         }
2532
2533         return target_resume(target, current, addr, 1, 0);
2534 }
2535
2536 COMMAND_HANDLER(handle_step_command)
2537 {
2538         if (CMD_ARGC > 1)
2539                 return ERROR_COMMAND_SYNTAX_ERROR;
2540
2541         LOG_DEBUG("-");
2542
2543         /* with no CMD_ARGV, step from current pc, addr = 0,
2544          * with one argument addr = CMD_ARGV[0],
2545          * handle breakpoints, debugging */
2546         uint32_t addr = 0;
2547         int current_pc = 1;
2548         if (CMD_ARGC == 1) {
2549                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2550                 current_pc = 0;
2551         }
2552
2553         struct target *target = get_current_target(CMD_CTX);
2554
2555         return target->type->step(target, current_pc, addr, 1);
2556 }
2557
2558 static void handle_md_output(struct command_context *cmd_ctx,
2559                 struct target *target, uint32_t address, unsigned size,
2560                 unsigned count, const uint8_t *buffer)
2561 {
2562         const unsigned line_bytecnt = 32;
2563         unsigned line_modulo = line_bytecnt / size;
2564
2565         char output[line_bytecnt * 4 + 1];
2566         unsigned output_len = 0;
2567
2568         const char *value_fmt;
2569         switch (size) {
2570         case 4:
2571                 value_fmt = "%8.8x ";
2572                 break;
2573         case 2:
2574                 value_fmt = "%4.4x ";
2575                 break;
2576         case 1:
2577                 value_fmt = "%2.2x ";
2578                 break;
2579         default:
2580                 /* "can't happen", caller checked */
2581                 LOG_ERROR("invalid memory read size: %u", size);
2582                 return;
2583         }
2584
2585         for (unsigned i = 0; i < count; i++) {
2586                 if (i % line_modulo == 0) {
2587                         output_len += snprintf(output + output_len,
2588                                         sizeof(output) - output_len,
2589                                         "0x%8.8x: ",
2590                                         (unsigned)(address + (i*size)));
2591                 }
2592
2593                 uint32_t value = 0;
2594                 const uint8_t *value_ptr = buffer + i * size;
2595                 switch (size) {
2596                 case 4:
2597                         value = target_buffer_get_u32(target, value_ptr);
2598                         break;
2599                 case 2:
2600                         value = target_buffer_get_u16(target, value_ptr);
2601                         break;
2602                 case 1:
2603                         value = *value_ptr;
2604                 }
2605                 output_len += snprintf(output + output_len,
2606                                 sizeof(output) - output_len,
2607                                 value_fmt, value);
2608
2609                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2610                         command_print(cmd_ctx, "%s", output);
2611                         output_len = 0;
2612                 }
2613         }
2614 }
2615
2616 COMMAND_HANDLER(handle_md_command)
2617 {
2618         if (CMD_ARGC < 1)
2619                 return ERROR_COMMAND_SYNTAX_ERROR;
2620
2621         unsigned size = 0;
2622         switch (CMD_NAME[2]) {
2623         case 'w':
2624                 size = 4;
2625                 break;
2626         case 'h':
2627                 size = 2;
2628                 break;
2629         case 'b':
2630                 size = 1;
2631                 break;
2632         default:
2633                 return ERROR_COMMAND_SYNTAX_ERROR;
2634         }
2635
2636         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2637         int (*fn)(struct target *target,
2638                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2639         if (physical) {
2640                 CMD_ARGC--;
2641                 CMD_ARGV++;
2642                 fn = target_read_phys_memory;
2643         } else
2644                 fn = target_read_memory;
2645         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2646                 return ERROR_COMMAND_SYNTAX_ERROR;
2647
2648         uint32_t address;
2649         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2650
2651         unsigned count = 1;
2652         if (CMD_ARGC == 2)
2653                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2654
2655         uint8_t *buffer = calloc(count, size);
2656
2657         struct target *target = get_current_target(CMD_CTX);
2658         int retval = fn(target, address, size, count, buffer);
2659         if (ERROR_OK == retval)
2660                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2661
2662         free(buffer);
2663
2664         return retval;
2665 }
2666
2667 typedef int (*target_write_fn)(struct target *target,
2668                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2669
2670 static int target_write_memory_fast(struct target *target,
2671                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2672 {
2673         return target_write_buffer(target, address, size * count, buffer);
2674 }
2675
2676 static int target_fill_mem(struct target *target,
2677                 uint32_t address,
2678                 target_write_fn fn,
2679                 unsigned data_size,
2680                 /* value */
2681                 uint32_t b,
2682                 /* count */
2683                 unsigned c)
2684 {
2685         /* We have to write in reasonably large chunks to be able
2686          * to fill large memory areas with any sane speed */
2687         const unsigned chunk_size = 16384;
2688         uint8_t *target_buf = malloc(chunk_size * data_size);
2689         if (target_buf == NULL) {
2690                 LOG_ERROR("Out of memory");
2691                 return ERROR_FAIL;
2692         }
2693
2694         for (unsigned i = 0; i < chunk_size; i++) {
2695                 switch (data_size) {
2696                 case 4:
2697                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2698                         break;
2699                 case 2:
2700                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2701                         break;
2702                 case 1:
2703                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2704                         break;
2705                 default:
2706                         exit(-1);
2707                 }
2708         }
2709
2710         int retval = ERROR_OK;
2711
2712         for (unsigned x = 0; x < c; x += chunk_size) {
2713                 unsigned current;
2714                 current = c - x;
2715                 if (current > chunk_size)
2716                         current = chunk_size;
2717                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2718                 if (retval != ERROR_OK)
2719                         break;
2720                 /* avoid GDB timeouts */
2721                 keep_alive();
2722         }
2723         free(target_buf);
2724
2725         return retval;
2726 }
2727
2728
2729 COMMAND_HANDLER(handle_mw_command)
2730 {
2731         if (CMD_ARGC < 2)
2732                 return ERROR_COMMAND_SYNTAX_ERROR;
2733         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2734         target_write_fn fn;
2735         if (physical) {
2736                 CMD_ARGC--;
2737                 CMD_ARGV++;
2738                 fn = target_write_phys_memory;
2739         } else
2740                 fn = target_write_memory_fast;
2741         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2742                 return ERROR_COMMAND_SYNTAX_ERROR;
2743
2744         uint32_t address;
2745         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2746
2747         uint32_t value;
2748         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2749
2750         unsigned count = 1;
2751         if (CMD_ARGC == 3)
2752                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2753
2754         struct target *target = get_current_target(CMD_CTX);
2755         unsigned wordsize;
2756         switch (CMD_NAME[2]) {
2757                 case 'w':
2758                         wordsize = 4;
2759                         break;
2760                 case 'h':
2761                         wordsize = 2;
2762                         break;
2763                 case 'b':
2764                         wordsize = 1;
2765                         break;
2766                 default:
2767                         return ERROR_COMMAND_SYNTAX_ERROR;
2768         }
2769
2770         return target_fill_mem(target, address, fn, wordsize, value, count);
2771 }
2772
2773 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2774                 uint32_t *min_address, uint32_t *max_address)
2775 {
2776         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2777                 return ERROR_COMMAND_SYNTAX_ERROR;
2778
2779         /* a base address isn't always necessary,
2780          * default to 0x0 (i.e. don't relocate) */
2781         if (CMD_ARGC >= 2) {
2782                 uint32_t addr;
2783                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2784                 image->base_address = addr;
2785                 image->base_address_set = 1;
2786         } else
2787                 image->base_address_set = 0;
2788
2789         image->start_address_set = 0;
2790
2791         if (CMD_ARGC >= 4)
2792                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2793         if (CMD_ARGC == 5) {
2794                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2795                 /* use size (given) to find max (required) */
2796                 *max_address += *min_address;
2797         }
2798
2799         if (*min_address > *max_address)
2800                 return ERROR_COMMAND_SYNTAX_ERROR;
2801
2802         return ERROR_OK;
2803 }
2804
2805 COMMAND_HANDLER(handle_load_image_command)
2806 {
2807         uint8_t *buffer;
2808         size_t buf_cnt;
2809         uint32_t image_size;
2810         uint32_t min_address = 0;
2811         uint32_t max_address = 0xffffffff;
2812         int i;
2813         struct image image;
2814
2815         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2816                         &image, &min_address, &max_address);
2817         if (ERROR_OK != retval)
2818                 return retval;
2819
2820         struct target *target = get_current_target(CMD_CTX);
2821
2822         struct duration bench;
2823         duration_start(&bench);
2824
2825         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2826                 return ERROR_OK;
2827
2828         image_size = 0x0;
2829         retval = ERROR_OK;
2830         for (i = 0; i < image.num_sections; i++) {
2831                 buffer = malloc(image.sections[i].size);
2832                 if (buffer == NULL) {
2833                         command_print(CMD_CTX,
2834                                                   "error allocating buffer for section (%d bytes)",
2835                                                   (int)(image.sections[i].size));
2836                         break;
2837                 }
2838
2839                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2840                 if (retval != ERROR_OK) {
2841                         free(buffer);
2842                         break;
2843                 }
2844
2845                 uint32_t offset = 0;
2846                 uint32_t length = buf_cnt;
2847
2848                 /* DANGER!!! beware of unsigned comparision here!!! */
2849
2850                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2851                                 (image.sections[i].base_address < max_address)) {
2852
2853                         if (image.sections[i].base_address < min_address) {
2854                                 /* clip addresses below */
2855                                 offset += min_address-image.sections[i].base_address;
2856                                 length -= offset;
2857                         }
2858
2859                         if (image.sections[i].base_address + buf_cnt > max_address)
2860                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2861
2862                         retval = target_write_buffer(target,
2863                                         image.sections[i].base_address + offset, length, buffer + offset);
2864                         if (retval != ERROR_OK) {
2865                                 free(buffer);
2866                                 break;
2867                         }
2868                         image_size += length;
2869                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2870                                         (unsigned int)length,
2871                                         image.sections[i].base_address + offset);
2872                 }
2873
2874                 free(buffer);
2875         }
2876
2877         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2878                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2879                                 "in %fs (%0.3f KiB/s)", image_size,
2880                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2881         }
2882
2883         image_close(&image);
2884
2885         return retval;
2886
2887 }
2888
2889 COMMAND_HANDLER(handle_dump_image_command)
2890 {
2891         struct fileio fileio;
2892         uint8_t *buffer;
2893         int retval, retvaltemp;
2894         uint32_t address, size;
2895         struct duration bench;
2896         struct target *target = get_current_target(CMD_CTX);
2897
2898         if (CMD_ARGC != 3)
2899                 return ERROR_COMMAND_SYNTAX_ERROR;
2900
2901         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2902         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2903
2904         uint32_t buf_size = (size > 4096) ? 4096 : size;
2905         buffer = malloc(buf_size);
2906         if (!buffer)
2907                 return ERROR_FAIL;
2908
2909         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2910         if (retval != ERROR_OK) {
2911                 free(buffer);
2912                 return retval;
2913         }
2914
2915         duration_start(&bench);
2916
2917         while (size > 0) {
2918                 size_t size_written;
2919                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2920                 retval = target_read_buffer(target, address, this_run_size, buffer);
2921                 if (retval != ERROR_OK)
2922                         break;
2923
2924                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2925                 if (retval != ERROR_OK)
2926                         break;
2927
2928                 size -= this_run_size;
2929                 address += this_run_size;
2930         }
2931
2932         free(buffer);
2933
2934         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2935                 int filesize;
2936                 retval = fileio_size(&fileio, &filesize);
2937                 if (retval != ERROR_OK)
2938                         return retval;
2939                 command_print(CMD_CTX,
2940                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2941                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2942         }
2943
2944         retvaltemp = fileio_close(&fileio);
2945         if (retvaltemp != ERROR_OK)
2946                 return retvaltemp;
2947
2948         return retval;
2949 }
2950
2951 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2952 {
2953         uint8_t *buffer;
2954         size_t buf_cnt;
2955         uint32_t image_size;
2956         int i;
2957         int retval;
2958         uint32_t checksum = 0;
2959         uint32_t mem_checksum = 0;
2960
2961         struct image image;
2962
2963         struct target *target = get_current_target(CMD_CTX);
2964
2965         if (CMD_ARGC < 1)
2966                 return ERROR_COMMAND_SYNTAX_ERROR;
2967
2968         if (!target) {
2969                 LOG_ERROR("no target selected");
2970                 return ERROR_FAIL;
2971         }
2972
2973         struct duration bench;
2974         duration_start(&bench);
2975
2976         if (CMD_ARGC >= 2) {
2977                 uint32_t addr;
2978                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2979                 image.base_address = addr;
2980                 image.base_address_set = 1;
2981         } else {
2982                 image.base_address_set = 0;
2983                 image.base_address = 0x0;
2984         }
2985
2986         image.start_address_set = 0;
2987
2988         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
2989         if (retval != ERROR_OK)
2990                 return retval;
2991
2992         image_size = 0x0;
2993         int diffs = 0;
2994         retval = ERROR_OK;
2995         for (i = 0; i < image.num_sections; i++) {
2996                 buffer = malloc(image.sections[i].size);
2997                 if (buffer == NULL) {
2998                         command_print(CMD_CTX,
2999                                         "error allocating buffer for section (%d bytes)",
3000                                         (int)(image.sections[i].size));
3001                         break;
3002                 }
3003                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3004                 if (retval != ERROR_OK) {
3005                         free(buffer);
3006                         break;
3007                 }
3008
3009                 if (verify) {
3010                         /* calculate checksum of image */
3011                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3012                         if (retval != ERROR_OK) {
3013                                 free(buffer);
3014                                 break;
3015                         }
3016
3017                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3018                         if (retval != ERROR_OK) {
3019                                 free(buffer);
3020                                 break;
3021                         }
3022
3023                         if (checksum != mem_checksum) {
3024                                 /* failed crc checksum, fall back to a binary compare */
3025                                 uint8_t *data;
3026
3027                                 if (diffs == 0)
3028                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3029
3030                                 data = (uint8_t *)malloc(buf_cnt);
3031
3032                                 /* Can we use 32bit word accesses? */
3033                                 int size = 1;
3034                                 int count = buf_cnt;
3035                                 if ((count % 4) == 0) {
3036                                         size *= 4;
3037                                         count /= 4;
3038                                 }
3039                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3040                                 if (retval == ERROR_OK) {
3041                                         uint32_t t;
3042                                         for (t = 0; t < buf_cnt; t++) {
3043                                                 if (data[t] != buffer[t]) {
3044                                                         command_print(CMD_CTX,
3045                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3046                                                                                   diffs,
3047                                                                                   (unsigned)(t + image.sections[i].base_address),
3048                                                                                   data[t],
3049                                                                                   buffer[t]);
3050                                                         if (diffs++ >= 127) {
3051                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3052                                                                 free(data);
3053                                                                 free(buffer);
3054                                                                 goto done;
3055                                                         }
3056                                                 }
3057                                                 keep_alive();
3058                                         }
3059                                 }
3060                                 free(data);
3061                         }
3062                 } else {
3063                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3064                                                   image.sections[i].base_address,
3065                                                   buf_cnt);
3066                 }
3067
3068                 free(buffer);
3069                 image_size += buf_cnt;
3070         }
3071         if (diffs > 0)
3072                 command_print(CMD_CTX, "No more differences found.");
3073 done:
3074         if (diffs > 0)
3075                 retval = ERROR_FAIL;
3076         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3077                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3078                                 "in %fs (%0.3f KiB/s)", image_size,
3079                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3080         }
3081
3082         image_close(&image);
3083
3084         return retval;
3085 }
3086
3087 COMMAND_HANDLER(handle_verify_image_command)
3088 {
3089         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3090 }
3091
3092 COMMAND_HANDLER(handle_test_image_command)
3093 {
3094         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3095 }
3096
3097 static int handle_bp_command_list(struct command_context *cmd_ctx)
3098 {
3099         struct target *target = get_current_target(cmd_ctx);
3100         struct breakpoint *breakpoint = target->breakpoints;
3101         while (breakpoint) {
3102                 if (breakpoint->type == BKPT_SOFT) {
3103                         char *buf = buf_to_str(breakpoint->orig_instr,
3104                                         breakpoint->length, 16);
3105                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3106                                         breakpoint->address,
3107                                         breakpoint->length,
3108                                         breakpoint->set, buf);
3109                         free(buf);
3110                 } else {
3111                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3112                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3113                                                         breakpoint->asid,
3114                                                         breakpoint->length, breakpoint->set);
3115                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3116                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3117                                                         breakpoint->address,
3118                                                         breakpoint->length, breakpoint->set);
3119                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3120                                                         breakpoint->asid);
3121                         } else
3122                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3123                                                         breakpoint->address,
3124                                                         breakpoint->length, breakpoint->set);
3125                 }
3126
3127                 breakpoint = breakpoint->next;
3128         }
3129         return ERROR_OK;
3130 }
3131
3132 static int handle_bp_command_set(struct command_context *cmd_ctx,
3133                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3134 {
3135         struct target *target = get_current_target(cmd_ctx);
3136
3137         if (asid == 0) {
3138                 int retval = breakpoint_add(target, addr, length, hw);
3139                 if (ERROR_OK == retval)
3140                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3141                 else {
3142                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3143                         return retval;
3144                 }
3145         } else if (addr == 0) {
3146                 int retval = context_breakpoint_add(target, asid, length, hw);
3147                 if (ERROR_OK == retval)
3148                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3149                 else {
3150                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3151                         return retval;
3152                 }
3153         } else {
3154                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3155                 if (ERROR_OK == retval)
3156                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3157                 else {
3158                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3159                         return retval;
3160                 }
3161         }
3162         return ERROR_OK;
3163 }
3164
3165 COMMAND_HANDLER(handle_bp_command)
3166 {
3167         uint32_t addr;
3168         uint32_t asid;
3169         uint32_t length;
3170         int hw = BKPT_SOFT;
3171
3172         switch (CMD_ARGC) {
3173                 case 0:
3174                         return handle_bp_command_list(CMD_CTX);
3175
3176                 case 2:
3177                         asid = 0;
3178                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3179                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3180                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3181
3182                 case 3:
3183                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3184                                 hw = BKPT_HARD;
3185                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3186
3187                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3188
3189                                 asid = 0;
3190                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3191                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3192                                 hw = BKPT_HARD;
3193                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3194                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3195                                 addr = 0;
3196                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3197                         }
3198
3199                 case 4:
3200                         hw = BKPT_HARD;
3201                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3202                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3203                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3204                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3205
3206                 default:
3207                         return ERROR_COMMAND_SYNTAX_ERROR;
3208         }
3209 }
3210
3211 COMMAND_HANDLER(handle_rbp_command)
3212 {
3213         if (CMD_ARGC != 1)
3214                 return ERROR_COMMAND_SYNTAX_ERROR;
3215
3216         uint32_t addr;
3217         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3218
3219         struct target *target = get_current_target(CMD_CTX);
3220         breakpoint_remove(target, addr);
3221
3222         return ERROR_OK;
3223 }
3224
3225 COMMAND_HANDLER(handle_wp_command)
3226 {
3227         struct target *target = get_current_target(CMD_CTX);
3228
3229         if (CMD_ARGC == 0) {
3230                 struct watchpoint *watchpoint = target->watchpoints;
3231
3232                 while (watchpoint) {
3233                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3234                                         ", len: 0x%8.8" PRIx32
3235                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3236                                         ", mask: 0x%8.8" PRIx32,
3237                                         watchpoint->address,
3238                                         watchpoint->length,
3239                                         (int)watchpoint->rw,
3240                                         watchpoint->value,
3241                                         watchpoint->mask);
3242                         watchpoint = watchpoint->next;
3243                 }
3244                 return ERROR_OK;
3245         }
3246
3247         enum watchpoint_rw type = WPT_ACCESS;
3248         uint32_t addr = 0;
3249         uint32_t length = 0;
3250         uint32_t data_value = 0x0;
3251         uint32_t data_mask = 0xffffffff;
3252
3253         switch (CMD_ARGC) {
3254         case 5:
3255                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3256                 /* fall through */
3257         case 4:
3258                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3259                 /* fall through */
3260         case 3:
3261                 switch (CMD_ARGV[2][0]) {
3262                 case 'r':
3263                         type = WPT_READ;
3264                         break;
3265                 case 'w':
3266                         type = WPT_WRITE;
3267                         break;
3268                 case 'a':
3269                         type = WPT_ACCESS;
3270                         break;
3271                 default:
3272                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3273                         return ERROR_COMMAND_SYNTAX_ERROR;
3274                 }
3275                 /* fall through */
3276         case 2:
3277                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3278                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3279                 break;
3280
3281         default:
3282                 return ERROR_COMMAND_SYNTAX_ERROR;
3283         }
3284
3285         int retval = watchpoint_add(target, addr, length, type,
3286                         data_value, data_mask);
3287         if (ERROR_OK != retval)
3288                 LOG_ERROR("Failure setting watchpoints");
3289
3290         return retval;
3291 }
3292
3293 COMMAND_HANDLER(handle_rwp_command)
3294 {
3295         if (CMD_ARGC != 1)
3296                 return ERROR_COMMAND_SYNTAX_ERROR;
3297
3298         uint32_t addr;
3299         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3300
3301         struct target *target = get_current_target(CMD_CTX);
3302         watchpoint_remove(target, addr);
3303
3304         return ERROR_OK;
3305 }
3306
3307 /**
3308  * Translate a virtual address to a physical address.
3309  *
3310  * The low-level target implementation must have logged a detailed error
3311  * which is forwarded to telnet/GDB session.
3312  */
3313 COMMAND_HANDLER(handle_virt2phys_command)
3314 {
3315         if (CMD_ARGC != 1)
3316                 return ERROR_COMMAND_SYNTAX_ERROR;
3317
3318         uint32_t va;
3319         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3320         uint32_t pa;
3321
3322         struct target *target = get_current_target(CMD_CTX);
3323         int retval = target->type->virt2phys(target, va, &pa);
3324         if (retval == ERROR_OK)
3325                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3326
3327         return retval;
3328 }
3329
3330 static void writeData(FILE *f, const void *data, size_t len)
3331 {
3332         size_t written = fwrite(data, 1, len, f);
3333         if (written != len)
3334                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3335 }
3336
3337 static void writeLong(FILE *f, int l)
3338 {
3339         int i;
3340         for (i = 0; i < 4; i++) {
3341                 char c = (l >> (i*8))&0xff;
3342                 writeData(f, &c, 1);
3343         }
3344
3345 }
3346
3347 static void writeString(FILE *f, char *s)
3348 {
3349         writeData(f, s, strlen(s));
3350 }
3351
3352 /* Dump a gmon.out histogram file. */
3353 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3354 {
3355         uint32_t i;
3356         FILE *f = fopen(filename, "w");
3357         if (f == NULL)
3358                 return;
3359         writeString(f, "gmon");
3360         writeLong(f, 0x00000001); /* Version */
3361         writeLong(f, 0); /* padding */
3362         writeLong(f, 0); /* padding */
3363         writeLong(f, 0); /* padding */
3364
3365         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3366         writeData(f, &zero, 1);
3367
3368         /* figure out bucket size */
3369         uint32_t min = samples[0];
3370         uint32_t max = samples[0];
3371         for (i = 0; i < sampleNum; i++) {
3372                 if (min > samples[i])
3373                         min = samples[i];
3374                 if (max < samples[i])
3375                         max = samples[i];
3376         }
3377
3378         int addressSpace = (max - min + 1);
3379         assert(addressSpace >= 2);
3380
3381         static const uint32_t maxBuckets = 16 * 1024; /* maximum buckets. */
3382         uint32_t length = addressSpace;
3383         if (length > maxBuckets)
3384                 length = maxBuckets;
3385         int *buckets = malloc(sizeof(int)*length);
3386         if (buckets == NULL) {
3387                 fclose(f);
3388                 return;
3389         }
3390         memset(buckets, 0, sizeof(int) * length);
3391         for (i = 0; i < sampleNum; i++) {
3392                 uint32_t address = samples[i];
3393                 long long a = address - min;
3394                 long long b = length - 1;
3395                 long long c = addressSpace - 1;
3396                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3397                 buckets[index_t]++;
3398         }
3399
3400         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3401         writeLong(f, min);                      /* low_pc */
3402         writeLong(f, max);                      /* high_pc */
3403         writeLong(f, length);           /* # of samples */
3404         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3405         writeString(f, "seconds");
3406         for (i = 0; i < (15-strlen("seconds")); i++)
3407                 writeData(f, &zero, 1);
3408         writeString(f, "s");
3409
3410         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3411
3412         char *data = malloc(2 * length);
3413         if (data != NULL) {
3414                 for (i = 0; i < length; i++) {
3415                         int val;
3416                         val = buckets[i];
3417                         if (val > 65535)
3418                                 val = 65535;
3419                         data[i * 2] = val&0xff;
3420                         data[i * 2 + 1] = (val >> 8) & 0xff;
3421                 }
3422                 free(buckets);
3423                 writeData(f, data, length * 2);
3424                 free(data);
3425         } else
3426                 free(buckets);
3427
3428         fclose(f);
3429 }
3430
3431 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3432  * which will be used as a random sampling of PC */
3433 COMMAND_HANDLER(handle_profile_command)
3434 {
3435         struct target *target = get_current_target(CMD_CTX);
3436         struct timeval timeout, now;
3437
3438         gettimeofday(&timeout, NULL);
3439         if (CMD_ARGC != 2)
3440                 return ERROR_COMMAND_SYNTAX_ERROR;
3441         unsigned offset;
3442         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3443
3444         timeval_add_time(&timeout, offset, 0);
3445
3446         /**
3447          * @todo: Some cores let us sample the PC without the
3448          * annoying halt/resume step; for example, ARMv7 PCSR.
3449          * Provide a way to use that more efficient mechanism.
3450          */
3451
3452         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3453
3454         static const int maxSample = 10000;
3455         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3456         if (samples == NULL)
3457                 return ERROR_OK;
3458
3459         int numSamples = 0;
3460         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3461         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3462
3463         int retval = ERROR_OK;
3464         for (;;) {
3465                 target_poll(target);
3466                 if (target->state == TARGET_HALTED) {
3467                         uint32_t t = *((uint32_t *)reg->value);
3468                         samples[numSamples++] = t;
3469                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
3470                         retval = target_resume(target, 1, 0, 0, 0);
3471                         target_poll(target);
3472                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3473                 } else if (target->state == TARGET_RUNNING) {
3474                         /* We want to quickly sample the PC. */
3475                         retval = target_halt(target);
3476                         if (retval != ERROR_OK) {
3477                                 free(samples);
3478                                 return retval;
3479                         }
3480                 } else {
3481                         command_print(CMD_CTX, "Target not halted or running");
3482                         retval = ERROR_OK;
3483                         break;
3484                 }
3485                 if (retval != ERROR_OK)
3486                         break;
3487
3488                 gettimeofday(&now, NULL);
3489                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec)
3490                                 && (now.tv_usec >= timeout.tv_usec))) {
3491                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3492                         retval = target_poll(target);
3493                         if (retval != ERROR_OK) {
3494                                 free(samples);
3495                                 return retval;
3496                         }
3497                         if (target->state == TARGET_HALTED) {
3498                                 /* current pc, addr = 0, do not handle
3499                                  * breakpoints, not debugging */
3500                                 target_resume(target, 1, 0, 0, 0);
3501                         }
3502                         retval = target_poll(target);
3503                         if (retval != ERROR_OK) {
3504                                 free(samples);
3505                                 return retval;
3506                         }
3507                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3508                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3509                         break;
3510                 }
3511         }
3512         free(samples);
3513
3514         return retval;
3515 }
3516
3517 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3518 {
3519         char *namebuf;
3520         Jim_Obj *nameObjPtr, *valObjPtr;
3521         int result;
3522
3523         namebuf = alloc_printf("%s(%d)", varname, idx);
3524         if (!namebuf)
3525                 return JIM_ERR;
3526
3527         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3528         valObjPtr = Jim_NewIntObj(interp, val);
3529         if (!nameObjPtr || !valObjPtr) {
3530                 free(namebuf);
3531                 return JIM_ERR;
3532         }
3533
3534         Jim_IncrRefCount(nameObjPtr);
3535         Jim_IncrRefCount(valObjPtr);
3536         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3537         Jim_DecrRefCount(interp, nameObjPtr);
3538         Jim_DecrRefCount(interp, valObjPtr);
3539         free(namebuf);
3540         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3541         return result;
3542 }
3543
3544 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3545 {
3546         struct command_context *context;
3547         struct target *target;
3548
3549         context = current_command_context(interp);
3550         assert(context != NULL);
3551
3552         target = get_current_target(context);
3553         if (target == NULL) {
3554                 LOG_ERROR("mem2array: no current target");
3555                 return JIM_ERR;
3556         }
3557
3558         return target_mem2array(interp, target, argc - 1, argv + 1);
3559 }
3560
3561 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3562 {
3563         long l;
3564         uint32_t width;
3565         int len;
3566         uint32_t addr;
3567         uint32_t count;
3568         uint32_t v;
3569         const char *varname;
3570         int  n, e, retval;
3571         uint32_t i;
3572
3573         /* argv[1] = name of array to receive the data
3574          * argv[2] = desired width
3575          * argv[3] = memory address
3576          * argv[4] = count of times to read
3577          */
3578         if (argc != 4) {
3579                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3580                 return JIM_ERR;
3581         }
3582         varname = Jim_GetString(argv[0], &len);
3583         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3584
3585         e = Jim_GetLong(interp, argv[1], &l);
3586         width = l;
3587         if (e != JIM_OK)
3588                 return e;
3589
3590         e = Jim_GetLong(interp, argv[2], &l);
3591         addr = l;
3592         if (e != JIM_OK)
3593                 return e;
3594         e = Jim_GetLong(interp, argv[3], &l);
3595         len = l;
3596         if (e != JIM_OK)
3597                 return e;
3598         switch (width) {
3599                 case 8:
3600                         width = 1;
3601                         break;
3602                 case 16:
3603                         width = 2;
3604                         break;
3605                 case 32:
3606                         width = 4;
3607                         break;
3608                 default:
3609                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3610                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3611                         return JIM_ERR;
3612         }
3613         if (len == 0) {
3614                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3615                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3616                 return JIM_ERR;
3617         }
3618         if ((addr + (len * width)) < addr) {
3619                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3620                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3621                 return JIM_ERR;
3622         }
3623         /* absurd transfer size? */
3624         if (len > 65536) {
3625                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3626                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3627                 return JIM_ERR;
3628         }
3629
3630         if ((width == 1) ||
3631                 ((width == 2) && ((addr & 1) == 0)) ||
3632                 ((width == 4) && ((addr & 3) == 0))) {
3633                 /* all is well */
3634         } else {
3635                 char buf[100];
3636                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3637                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3638                                 addr,
3639                                 width);
3640                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3641                 return JIM_ERR;
3642         }
3643
3644         /* Transfer loop */
3645
3646         /* index counter */
3647         n = 0;
3648
3649         size_t buffersize = 4096;
3650         uint8_t *buffer = malloc(buffersize);
3651         if (buffer == NULL)
3652                 return JIM_ERR;
3653
3654         /* assume ok */
3655         e = JIM_OK;
3656         while (len) {
3657                 /* Slurp... in buffer size chunks */
3658
3659                 count = len; /* in objects.. */
3660                 if (count > (buffersize / width))
3661                         count = (buffersize / width);
3662
3663                 retval = target_read_memory(target, addr, width, count, buffer);
3664                 if (retval != ERROR_OK) {
3665                         /* BOO !*/
3666                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3667                                           (unsigned int)addr,
3668                                           (int)width,
3669                                           (int)count);
3670                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3671                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3672                         e = JIM_ERR;
3673                         break;
3674                 } else {
3675                         v = 0; /* shut up gcc */
3676                         for (i = 0; i < count ; i++, n++) {
3677                                 switch (width) {
3678                                         case 4:
3679                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3680                                                 break;
3681                                         case 2:
3682                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3683                                                 break;
3684                                         case 1:
3685                                                 v = buffer[i] & 0x0ff;
3686                                                 break;
3687                                 }
3688                                 new_int_array_element(interp, varname, n, v);
3689                         }
3690                         len -= count;
3691                 }
3692         }
3693
3694         free(buffer);
3695
3696         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3697
3698         return e;
3699 }
3700
3701 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3702 {
3703         char *namebuf;
3704         Jim_Obj *nameObjPtr, *valObjPtr;
3705         int result;
3706         long l;
3707
3708         namebuf = alloc_printf("%s(%d)", varname, idx);
3709         if (!namebuf)
3710                 return JIM_ERR;
3711
3712         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3713         if (!nameObjPtr) {
3714                 free(namebuf);
3715                 return JIM_ERR;
3716         }
3717
3718         Jim_IncrRefCount(nameObjPtr);
3719         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3720         Jim_DecrRefCount(interp, nameObjPtr);
3721         free(namebuf);
3722         if (valObjPtr == NULL)
3723                 return JIM_ERR;
3724
3725         result = Jim_GetLong(interp, valObjPtr, &l);
3726         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3727         *val = l;
3728         return result;
3729 }
3730
3731 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3732 {
3733         struct command_context *context;
3734         struct target *target;
3735
3736         context = current_command_context(interp);
3737         assert(context != NULL);
3738
3739         target = get_current_target(context);
3740         if (target == NULL) {
3741                 LOG_ERROR("array2mem: no current target");
3742                 return JIM_ERR;
3743         }
3744
3745         return target_array2mem(interp, target, argc-1, argv + 1);
3746 }
3747
3748 static int target_array2mem(Jim_Interp *interp, struct target *target,
3749                 int argc, Jim_Obj *const *argv)
3750 {
3751         long l;
3752         uint32_t width;
3753         int len;
3754         uint32_t addr;
3755         uint32_t count;
3756         uint32_t v;
3757         const char *varname;
3758         int  n, e, retval;
3759         uint32_t i;
3760
3761         /* argv[1] = name of array to get the data
3762          * argv[2] = desired width
3763          * argv[3] = memory address
3764          * argv[4] = count to write
3765          */
3766         if (argc != 4) {
3767                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3768                 return JIM_ERR;
3769         }
3770         varname = Jim_GetString(argv[0], &len);
3771         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3772
3773         e = Jim_GetLong(interp, argv[1], &l);
3774         width = l;
3775         if (e != JIM_OK)
3776                 return e;
3777
3778         e = Jim_GetLong(interp, argv[2], &l);
3779         addr = l;
3780         if (e != JIM_OK)
3781                 return e;
3782         e = Jim_GetLong(interp, argv[3], &l);
3783         len = l;
3784         if (e != JIM_OK)
3785                 return e;
3786         switch (width) {
3787                 case 8:
3788                         width = 1;
3789                         break;
3790                 case 16:
3791                         width = 2;
3792                         break;
3793                 case 32:
3794                         width = 4;
3795                         break;
3796                 default:
3797                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3798                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3799                                         "Invalid width param, must be 8/16/32", NULL);
3800                         return JIM_ERR;
3801         }
3802         if (len == 0) {
3803                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3804                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3805                                 "array2mem: zero width read?", NULL);
3806                 return JIM_ERR;
3807         }
3808         if ((addr + (len * width)) < addr) {
3809                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3810                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3811                                 "array2mem: addr + len - wraps to zero?", NULL);
3812                 return JIM_ERR;
3813         }
3814         /* absurd transfer size? */
3815         if (len > 65536) {
3816                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3817                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3818                                 "array2mem: absurd > 64K item request", NULL);
3819                 return JIM_ERR;
3820         }
3821
3822         if ((width == 1) ||
3823                 ((width == 2) && ((addr & 1) == 0)) ||
3824                 ((width == 4) && ((addr & 3) == 0))) {
3825                 /* all is well */
3826         } else {
3827                 char buf[100];
3828                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3829                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3830                                 (unsigned int)addr,
3831                                 (int)width);
3832                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3833                 return JIM_ERR;
3834         }
3835
3836         /* Transfer loop */
3837
3838         /* index counter */
3839         n = 0;
3840         /* assume ok */
3841         e = JIM_OK;
3842
3843         size_t buffersize = 4096;
3844         uint8_t *buffer = malloc(buffersize);
3845         if (buffer == NULL)
3846                 return JIM_ERR;
3847
3848         while (len) {
3849                 /* Slurp... in buffer size chunks */
3850
3851                 count = len; /* in objects.. */
3852                 if (count > (buffersize / width))
3853                         count = (buffersize / width);
3854
3855                 v = 0; /* shut up gcc */
3856                 for (i = 0; i < count; i++, n++) {
3857                         get_int_array_element(interp, varname, n, &v);
3858                         switch (width) {
3859                         case 4:
3860                                 target_buffer_set_u32(target, &buffer[i * width], v);
3861                                 break;
3862                         case 2:
3863                                 target_buffer_set_u16(target, &buffer[i * width], v);
3864                                 break;
3865                         case 1:
3866                                 buffer[i] = v & 0x0ff;
3867                                 break;
3868                         }
3869                 }
3870                 len -= count;
3871
3872                 retval = target_write_memory(target, addr, width, count, buffer);
3873                 if (retval != ERROR_OK) {
3874                         /* BOO !*/
3875                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3876                                           (unsigned int)addr,
3877                                           (int)width,
3878                                           (int)count);
3879                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3880                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3881                         e = JIM_ERR;
3882                         break;
3883                 }
3884         }
3885
3886         free(buffer);
3887
3888         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3889
3890         return e;
3891 }
3892
3893 /* FIX? should we propagate errors here rather than printing them
3894  * and continuing?
3895  */
3896 void target_handle_event(struct target *target, enum target_event e)
3897 {
3898         struct target_event_action *teap;
3899
3900         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3901                 if (teap->event == e) {
3902                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3903                                            target->target_number,
3904                                            target_name(target),
3905                                            target_type_name(target),
3906                                            e,
3907                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3908                                            Jim_GetString(teap->body, NULL));
3909                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3910                                 Jim_MakeErrorMessage(teap->interp);
3911                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3912                         }
3913                 }
3914         }
3915 }
3916
3917 /**
3918  * Returns true only if the target has a handler for the specified event.
3919  */
3920 bool target_has_event_action(struct target *target, enum target_event event)
3921 {
3922         struct target_event_action *teap;
3923
3924         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3925                 if (teap->event == event)
3926                         return true;
3927         }
3928         return false;
3929 }
3930
3931 enum target_cfg_param {
3932         TCFG_TYPE,
3933         TCFG_EVENT,
3934         TCFG_WORK_AREA_VIRT,
3935         TCFG_WORK_AREA_PHYS,
3936         TCFG_WORK_AREA_SIZE,
3937         TCFG_WORK_AREA_BACKUP,
3938         TCFG_ENDIAN,
3939         TCFG_VARIANT,
3940         TCFG_COREID,
3941         TCFG_CHAIN_POSITION,
3942         TCFG_DBGBASE,
3943         TCFG_RTOS,
3944 };
3945
3946 static Jim_Nvp nvp_config_opts[] = {
3947         { .name = "-type",             .value = TCFG_TYPE },
3948         { .name = "-event",            .value = TCFG_EVENT },
3949         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3950         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3951         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3952         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3953         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3954         { .name = "-variant",          .value = TCFG_VARIANT },
3955         { .name = "-coreid",           .value = TCFG_COREID },
3956         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3957         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3958         { .name = "-rtos",             .value = TCFG_RTOS },
3959         { .name = NULL, .value = -1 }
3960 };
3961
3962 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3963 {
3964         Jim_Nvp *n;
3965         Jim_Obj *o;
3966         jim_wide w;
3967         char *cp;
3968         int e;
3969
3970         /* parse config or cget options ... */
3971         while (goi->argc > 0) {
3972                 Jim_SetEmptyResult(goi->interp);
3973                 /* Jim_GetOpt_Debug(goi); */
3974
3975                 if (target->type->target_jim_configure) {
3976                         /* target defines a configure function */
3977                         /* target gets first dibs on parameters */
3978                         e = (*(target->type->target_jim_configure))(target, goi);
3979                         if (e == JIM_OK) {
3980                                 /* more? */
3981                                 continue;
3982                         }
3983                         if (e == JIM_ERR) {
3984                                 /* An error */
3985                                 return e;
3986                         }
3987                         /* otherwise we 'continue' below */
3988                 }
3989                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
3990                 if (e != JIM_OK) {
3991                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
3992                         return e;
3993                 }
3994                 switch (n->value) {
3995                 case TCFG_TYPE:
3996                         /* not setable */
3997                         if (goi->isconfigure) {
3998                                 Jim_SetResultFormatted(goi->interp,
3999                                                 "not settable: %s", n->name);
4000                                 return JIM_ERR;
4001                         } else {
4002 no_params:
4003                                 if (goi->argc != 0) {
4004                                         Jim_WrongNumArgs(goi->interp,
4005                                                         goi->argc, goi->argv,
4006                                                         "NO PARAMS");
4007                                         return JIM_ERR;
4008                                 }
4009                         }
4010                         Jim_SetResultString(goi->interp,
4011                                         target_type_name(target), -1);
4012                         /* loop for more */
4013                         break;
4014                 case TCFG_EVENT:
4015                         if (goi->argc == 0) {
4016                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4017                                 return JIM_ERR;
4018                         }
4019
4020                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4021                         if (e != JIM_OK) {
4022                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4023                                 return e;
4024                         }
4025
4026                         if (goi->isconfigure) {
4027                                 if (goi->argc != 1) {
4028                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4029                                         return JIM_ERR;
4030                                 }
4031                         } else {
4032                                 if (goi->argc != 0) {
4033                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4034                                         return JIM_ERR;
4035                                 }
4036                         }
4037
4038                         {
4039                                 struct target_event_action *teap;
4040
4041                                 teap = target->event_action;
4042                                 /* replace existing? */
4043                                 while (teap) {
4044                                         if (teap->event == (enum target_event)n->value)
4045                                                 break;
4046                                         teap = teap->next;
4047                                 }
4048
4049                                 if (goi->isconfigure) {
4050                                         bool replace = true;
4051                                         if (teap == NULL) {
4052                                                 /* create new */
4053                                                 teap = calloc(1, sizeof(*teap));
4054                                                 replace = false;
4055                                         }
4056                                         teap->event = n->value;
4057                                         teap->interp = goi->interp;
4058                                         Jim_GetOpt_Obj(goi, &o);
4059                                         if (teap->body)
4060                                                 Jim_DecrRefCount(teap->interp, teap->body);
4061                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4062                                         /*
4063                                          * FIXME:
4064                                          *     Tcl/TK - "tk events" have a nice feature.
4065                                          *     See the "BIND" command.
4066                                          *    We should support that here.
4067                                          *     You can specify %X and %Y in the event code.
4068                                          *     The idea is: %T - target name.
4069                                          *     The idea is: %N - target number
4070                                          *     The idea is: %E - event name.
4071                                          */
4072                                         Jim_IncrRefCount(teap->body);
4073
4074                                         if (!replace) {
4075                                                 /* add to head of event list */
4076                                                 teap->next = target->event_action;
4077                                                 target->event_action = teap;
4078                                         }
4079                                         Jim_SetEmptyResult(goi->interp);
4080                                 } else {
4081                                         /* get */
4082                                         if (teap == NULL)
4083                                                 Jim_SetEmptyResult(goi->interp);
4084                                         else
4085                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4086                                 }
4087                         }
4088                         /* loop for more */
4089                         break;
4090
4091                 case TCFG_WORK_AREA_VIRT:
4092                         if (goi->isconfigure) {
4093                                 target_free_all_working_areas(target);
4094                                 e = Jim_GetOpt_Wide(goi, &w);
4095                                 if (e != JIM_OK)
4096                                         return e;
4097                                 target->working_area_virt = w;
4098                                 target->working_area_virt_spec = true;
4099                         } else {
4100                                 if (goi->argc != 0)
4101                                         goto no_params;
4102                         }
4103                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4104                         /* loop for more */
4105                         break;
4106
4107                 case TCFG_WORK_AREA_PHYS:
4108                         if (goi->isconfigure) {
4109                                 target_free_all_working_areas(target);
4110                                 e = Jim_GetOpt_Wide(goi, &w);
4111                                 if (e != JIM_OK)
4112                                         return e;
4113                                 target->working_area_phys = w;
4114                                 target->working_area_phys_spec = true;
4115                         } else {
4116                                 if (goi->argc != 0)
4117                                         goto no_params;
4118                         }
4119                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4120                         /* loop for more */
4121                         break;
4122
4123                 case TCFG_WORK_AREA_SIZE:
4124                         if (goi->isconfigure) {
4125                                 target_free_all_working_areas(target);
4126                                 e = Jim_GetOpt_Wide(goi, &w);
4127                                 if (e != JIM_OK)
4128                                         return e;
4129                                 target->working_area_size = w;
4130                         } else {
4131                                 if (goi->argc != 0)
4132                                         goto no_params;
4133                         }
4134                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4135                         /* loop for more */
4136                         break;
4137
4138                 case TCFG_WORK_AREA_BACKUP:
4139                         if (goi->isconfigure) {
4140                                 target_free_all_working_areas(target);
4141                                 e = Jim_GetOpt_Wide(goi, &w);
4142                                 if (e != JIM_OK)
4143                                         return e;
4144                                 /* make this exactly 1 or 0 */
4145                                 target->backup_working_area = (!!w);
4146                         } else {
4147                                 if (goi->argc != 0)
4148                                         goto no_params;
4149                         }
4150                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4151                         /* loop for more e*/
4152                         break;
4153
4154
4155                 case TCFG_ENDIAN:
4156                         if (goi->isconfigure) {
4157                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4158                                 if (e != JIM_OK) {
4159                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4160                                         return e;
4161                                 }
4162                                 target->endianness = n->value;
4163                         } else {
4164                                 if (goi->argc != 0)
4165                                         goto no_params;
4166                         }
4167                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4168                         if (n->name == NULL) {
4169                                 target->endianness = TARGET_LITTLE_ENDIAN;
4170                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4171                         }
4172                         Jim_SetResultString(goi->interp, n->name, -1);
4173                         /* loop for more */
4174                         break;
4175
4176                 case TCFG_VARIANT:
4177                         if (goi->isconfigure) {
4178                                 if (goi->argc < 1) {
4179                                         Jim_SetResultFormatted(goi->interp,
4180                                                                                    "%s ?STRING?",
4181                                                                                    n->name);
4182                                         return JIM_ERR;
4183                                 }
4184                                 if (target->variant)
4185                                         free((void *)(target->variant));
4186                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4187                                 if (e != JIM_OK)
4188                                         return e;
4189                                 target->variant = strdup(cp);
4190                         } else {
4191                                 if (goi->argc != 0)
4192                                         goto no_params;
4193                         }
4194                         Jim_SetResultString(goi->interp, target->variant, -1);
4195                         /* loop for more */
4196                         break;
4197
4198                 case TCFG_COREID:
4199                         if (goi->isconfigure) {
4200                                 e = Jim_GetOpt_Wide(goi, &w);
4201                                 if (e != JIM_OK)
4202                                         return e;
4203                                 target->coreid = (int32_t)w;
4204                         } else {
4205                                 if (goi->argc != 0)
4206                                         goto no_params;
4207                         }
4208                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4209                         /* loop for more */
4210                         break;
4211
4212                 case TCFG_CHAIN_POSITION:
4213                         if (goi->isconfigure) {
4214                                 Jim_Obj *o_t;
4215                                 struct jtag_tap *tap;
4216                                 target_free_all_working_areas(target);
4217                                 e = Jim_GetOpt_Obj(goi, &o_t);
4218                                 if (e != JIM_OK)
4219                                         return e;
4220                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4221                                 if (tap == NULL)
4222                                         return JIM_ERR;
4223                                 /* make this exactly 1 or 0 */
4224                                 target->tap = tap;
4225                         } else {
4226                                 if (goi->argc != 0)
4227                                         goto no_params;
4228                         }
4229                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4230                         /* loop for more e*/
4231                         break;
4232                 case TCFG_DBGBASE:
4233                         if (goi->isconfigure) {
4234                                 e = Jim_GetOpt_Wide(goi, &w);
4235                                 if (e != JIM_OK)
4236                                         return e;
4237                                 target->dbgbase = (uint32_t)w;
4238                                 target->dbgbase_set = true;
4239                         } else {
4240                                 if (goi->argc != 0)
4241                                         goto no_params;
4242                         }
4243                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4244                         /* loop for more */
4245                         break;
4246
4247                 case TCFG_RTOS:
4248                         /* RTOS */
4249                         {
4250                                 int result = rtos_create(goi, target);
4251                                 if (result != JIM_OK)
4252                                         return result;
4253                         }
4254                         /* loop for more */
4255                         break;
4256                 }
4257         } /* while (goi->argc) */
4258
4259
4260                 /* done - we return */
4261         return JIM_OK;
4262 }
4263
4264 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4265 {
4266         Jim_GetOptInfo goi;
4267
4268         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4269         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4270         int need_args = 1 + goi.isconfigure;
4271         if (goi.argc < need_args) {
4272                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4273                         goi.isconfigure
4274                                 ? "missing: -option VALUE ..."
4275                                 : "missing: -option ...");
4276                 return JIM_ERR;
4277         }
4278         struct target *target = Jim_CmdPrivData(goi.interp);
4279         return target_configure(&goi, target);
4280 }
4281
4282 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4283 {
4284         const char *cmd_name = Jim_GetString(argv[0], NULL);
4285
4286         Jim_GetOptInfo goi;
4287         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4288
4289         if (goi.argc < 2 || goi.argc > 4) {
4290                 Jim_SetResultFormatted(goi.interp,
4291                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4292                 return JIM_ERR;
4293         }
4294
4295         target_write_fn fn;
4296         fn = target_write_memory_fast;
4297
4298         int e;
4299         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4300                 /* consume it */
4301                 struct Jim_Obj *obj;
4302                 e = Jim_GetOpt_Obj(&goi, &obj);
4303                 if (e != JIM_OK)
4304                         return e;
4305
4306                 fn = target_write_phys_memory;
4307         }
4308
4309         jim_wide a;
4310         e = Jim_GetOpt_Wide(&goi, &a);
4311         if (e != JIM_OK)
4312                 return e;
4313
4314         jim_wide b;
4315         e = Jim_GetOpt_Wide(&goi, &b);
4316         if (e != JIM_OK)
4317                 return e;
4318
4319         jim_wide c = 1;
4320         if (goi.argc == 1) {
4321                 e = Jim_GetOpt_Wide(&goi, &c);
4322                 if (e != JIM_OK)
4323                         return e;
4324         }
4325
4326         /* all args must be consumed */
4327         if (goi.argc != 0)
4328                 return JIM_ERR;
4329
4330         struct target *target = Jim_CmdPrivData(goi.interp);
4331         unsigned data_size;
4332         if (strcasecmp(cmd_name, "mww") == 0)
4333                 data_size = 4;
4334         else if (strcasecmp(cmd_name, "mwh") == 0)
4335                 data_size = 2;
4336         else if (strcasecmp(cmd_name, "mwb") == 0)
4337                 data_size = 1;
4338         else {
4339                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4340                 return JIM_ERR;
4341         }
4342
4343         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4344 }
4345
4346 /**
4347 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4348 *
4349 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4350 *         mdh [phys] <address> [<count>] - for 16 bit reads
4351 *         mdb [phys] <address> [<count>] - for  8 bit reads
4352 *
4353 *  Count defaults to 1.
4354 *
4355 *  Calls target_read_memory or target_read_phys_memory depending on
4356 *  the presence of the "phys" argument
4357 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4358 *  to int representation in base16.
4359 *  Also outputs read data in a human readable form using command_print
4360 *
4361 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4362 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4363 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4364 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4365 *  on success, with [<count>] number of elements.
4366 *
4367 *  In case of little endian target:
4368 *      Example1: "mdw 0x00000000"  returns "10123456"
4369 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4370 *      Example3: "mdb 0x00000000" returns "56"
4371 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4372 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4373 **/
4374 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4375 {
4376         const char *cmd_name = Jim_GetString(argv[0], NULL);
4377
4378         Jim_GetOptInfo goi;
4379         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4380
4381         if ((goi.argc < 1) || (goi.argc > 3)) {
4382                 Jim_SetResultFormatted(goi.interp,
4383                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4384                 return JIM_ERR;
4385         }
4386
4387         int (*fn)(struct target *target,
4388                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4389         fn = target_read_memory;
4390
4391         int e;
4392         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4393                 /* consume it */
4394                 struct Jim_Obj *obj;
4395                 e = Jim_GetOpt_Obj(&goi, &obj);
4396                 if (e != JIM_OK)
4397                         return e;
4398
4399                 fn = target_read_phys_memory;
4400         }
4401
4402         /* Read address parameter */
4403         jim_wide addr;
4404         e = Jim_GetOpt_Wide(&goi, &addr);
4405         if (e != JIM_OK)
4406                 return JIM_ERR;
4407
4408         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4409         jim_wide count;
4410         if (goi.argc == 1) {
4411                 e = Jim_GetOpt_Wide(&goi, &count);
4412                 if (e != JIM_OK)
4413                         return JIM_ERR;
4414         } else
4415                 count = 1;
4416
4417         /* all args must be consumed */
4418         if (goi.argc != 0)
4419                 return JIM_ERR;
4420
4421         jim_wide dwidth = 1; /* shut up gcc */
4422         if (strcasecmp(cmd_name, "mdw") == 0)
4423                 dwidth = 4;
4424         else if (strcasecmp(cmd_name, "mdh") == 0)
4425                 dwidth = 2;
4426         else if (strcasecmp(cmd_name, "mdb") == 0)
4427                 dwidth = 1;
4428         else {
4429                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4430                 return JIM_ERR;
4431         }
4432
4433         /* convert count to "bytes" */
4434         int bytes = count * dwidth;
4435
4436         struct target *target = Jim_CmdPrivData(goi.interp);
4437         uint8_t  target_buf[32];
4438         jim_wide x, y, z;
4439         while (bytes > 0) {
4440                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4441
4442                 /* Try to read out next block */
4443                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4444
4445                 if (e != ERROR_OK) {
4446                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4447                         return JIM_ERR;
4448                 }
4449
4450                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4451                 switch (dwidth) {
4452                 case 4:
4453                         for (x = 0; x < 16 && x < y; x += 4) {
4454                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4455                                 command_print_sameline(NULL, "%08x ", (int)(z));
4456                         }
4457                         for (; (x < 16) ; x += 4)
4458                                 command_print_sameline(NULL, "         ");
4459                         break;
4460                 case 2:
4461                         for (x = 0; x < 16 && x < y; x += 2) {
4462                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4463                                 command_print_sameline(NULL, "%04x ", (int)(z));
4464                         }
4465                         for (; (x < 16) ; x += 2)
4466                                 command_print_sameline(NULL, "     ");
4467                         break;
4468                 case 1:
4469                 default:
4470                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4471                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4472                                 command_print_sameline(NULL, "%02x ", (int)(z));
4473                         }
4474                         for (; (x < 16) ; x += 1)
4475                                 command_print_sameline(NULL, "   ");
4476                         break;
4477                 }
4478                 /* ascii-ify the bytes */
4479                 for (x = 0 ; x < y ; x++) {
4480                         if ((target_buf[x] >= 0x20) &&
4481                                 (target_buf[x] <= 0x7e)) {
4482                                 /* good */
4483                         } else {
4484                                 /* smack it */
4485                                 target_buf[x] = '.';
4486                         }
4487                 }
4488                 /* space pad  */
4489                 while (x < 16) {
4490                         target_buf[x] = ' ';
4491                         x++;
4492                 }
4493                 /* terminate */
4494                 target_buf[16] = 0;
4495                 /* print - with a newline */
4496                 command_print_sameline(NULL, "%s\n", target_buf);
4497                 /* NEXT... */
4498                 bytes -= 16;
4499                 addr += 16;
4500         }
4501         return JIM_OK;
4502 }
4503
4504 static int jim_target_mem2array(Jim_Interp *interp,
4505                 int argc, Jim_Obj *const *argv)
4506 {
4507         struct target *target = Jim_CmdPrivData(interp);
4508         return target_mem2array(interp, target, argc - 1, argv + 1);
4509 }
4510
4511 static int jim_target_array2mem(Jim_Interp *interp,
4512                 int argc, Jim_Obj *const *argv)
4513 {
4514         struct target *target = Jim_CmdPrivData(interp);
4515         return target_array2mem(interp, target, argc - 1, argv + 1);
4516 }
4517
4518 static int jim_target_tap_disabled(Jim_Interp *interp)
4519 {
4520         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4521         return JIM_ERR;
4522 }
4523
4524 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4525 {
4526         if (argc != 1) {
4527                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4528                 return JIM_ERR;
4529         }
4530         struct target *target = Jim_CmdPrivData(interp);
4531         if (!target->tap->enabled)
4532                 return jim_target_tap_disabled(interp);
4533
4534         int e = target->type->examine(target);
4535         if (e != ERROR_OK)
4536                 return JIM_ERR;
4537         return JIM_OK;
4538 }
4539
4540 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4541 {
4542         if (argc != 1) {
4543                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4544                 return JIM_ERR;
4545         }
4546         struct target *target = Jim_CmdPrivData(interp);
4547
4548         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4549                 return JIM_ERR;
4550
4551         return JIM_OK;
4552 }
4553
4554 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4555 {
4556         if (argc != 1) {
4557                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4558                 return JIM_ERR;
4559         }
4560         struct target *target = Jim_CmdPrivData(interp);
4561         if (!target->tap->enabled)
4562                 return jim_target_tap_disabled(interp);
4563
4564         int e;
4565         if (!(target_was_examined(target)))
4566                 e = ERROR_TARGET_NOT_EXAMINED;
4567         else
4568                 e = target->type->poll(target);
4569         if (e != ERROR_OK)
4570                 return JIM_ERR;
4571         return JIM_OK;
4572 }
4573
4574 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4575 {
4576         Jim_GetOptInfo goi;
4577         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4578
4579         if (goi.argc != 2) {
4580                 Jim_WrongNumArgs(interp, 0, argv,
4581                                 "([tT]|[fF]|assert|deassert) BOOL");
4582                 return JIM_ERR;
4583         }
4584
4585         Jim_Nvp *n;
4586         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4587         if (e != JIM_OK) {
4588                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4589                 return e;
4590         }
4591         /* the halt or not param */
4592         jim_wide a;
4593         e = Jim_GetOpt_Wide(&goi, &a);
4594         if (e != JIM_OK)
4595                 return e;
4596
4597         struct target *target = Jim_CmdPrivData(goi.interp);
4598         if (!target->tap->enabled)
4599                 return jim_target_tap_disabled(interp);
4600         if (!(target_was_examined(target))) {
4601                 LOG_ERROR("Target not examined yet");
4602                 return ERROR_TARGET_NOT_EXAMINED;
4603         }
4604         if (!target->type->assert_reset || !target->type->deassert_reset) {
4605                 Jim_SetResultFormatted(interp,
4606                                 "No target-specific reset for %s",
4607                                 target_name(target));
4608                 return JIM_ERR;
4609         }
4610         /* determine if we should halt or not. */
4611         target->reset_halt = !!a;
4612         /* When this happens - all workareas are invalid. */
4613         target_free_all_working_areas_restore(target, 0);
4614
4615         /* do the assert */
4616         if (n->value == NVP_ASSERT)
4617                 e = target->type->assert_reset(target);
4618         else
4619                 e = target->type->deassert_reset(target);
4620         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4621 }
4622
4623 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4624 {
4625         if (argc != 1) {
4626                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4627                 return JIM_ERR;
4628         }
4629         struct target *target = Jim_CmdPrivData(interp);
4630         if (!target->tap->enabled)
4631                 return jim_target_tap_disabled(interp);
4632         int e = target->type->halt(target);
4633         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4634 }
4635
4636 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4637 {
4638         Jim_GetOptInfo goi;
4639         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4640
4641         /* params:  <name>  statename timeoutmsecs */
4642         if (goi.argc != 2) {
4643                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4644                 Jim_SetResultFormatted(goi.interp,
4645                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4646                 return JIM_ERR;
4647         }
4648
4649         Jim_Nvp *n;
4650         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4651         if (e != JIM_OK) {
4652                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4653                 return e;
4654         }
4655         jim_wide a;
4656         e = Jim_GetOpt_Wide(&goi, &a);
4657         if (e != JIM_OK)
4658                 return e;
4659         struct target *target = Jim_CmdPrivData(interp);
4660         if (!target->tap->enabled)
4661                 return jim_target_tap_disabled(interp);
4662
4663         e = target_wait_state(target, n->value, a);
4664         if (e != ERROR_OK) {
4665                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4666                 Jim_SetResultFormatted(goi.interp,
4667                                 "target: %s wait %s fails (%#s) %s",
4668                                 target_name(target), n->name,
4669                                 eObj, target_strerror_safe(e));
4670                 Jim_FreeNewObj(interp, eObj);
4671                 return JIM_ERR;
4672         }
4673         return JIM_OK;
4674 }
4675 /* List for human, Events defined for this target.
4676  * scripts/programs should use 'name cget -event NAME'
4677  */
4678 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4679 {
4680         struct command_context *cmd_ctx = current_command_context(interp);
4681         assert(cmd_ctx != NULL);
4682
4683         struct target *target = Jim_CmdPrivData(interp);
4684         struct target_event_action *teap = target->event_action;
4685         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4686                                    target->target_number,
4687                                    target_name(target));
4688         command_print(cmd_ctx, "%-25s | Body", "Event");
4689         command_print(cmd_ctx, "------------------------- | "
4690                         "----------------------------------------");
4691         while (teap) {
4692                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4693                 command_print(cmd_ctx, "%-25s | %s",
4694                                 opt->name, Jim_GetString(teap->body, NULL));
4695                 teap = teap->next;
4696         }
4697         command_print(cmd_ctx, "***END***");
4698         return JIM_OK;
4699 }
4700 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4701 {
4702         if (argc != 1) {
4703                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4704                 return JIM_ERR;
4705         }
4706         struct target *target = Jim_CmdPrivData(interp);
4707         Jim_SetResultString(interp, target_state_name(target), -1);
4708         return JIM_OK;
4709 }
4710 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4711 {
4712         Jim_GetOptInfo goi;
4713         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4714         if (goi.argc != 1) {
4715                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4716                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4717                 return JIM_ERR;
4718         }
4719         Jim_Nvp *n;
4720         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4721         if (e != JIM_OK) {
4722                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4723                 return e;
4724         }
4725         struct target *target = Jim_CmdPrivData(interp);
4726         target_handle_event(target, n->value);
4727         return JIM_OK;
4728 }
4729
4730 static const struct command_registration target_instance_command_handlers[] = {
4731         {
4732                 .name = "configure",
4733                 .mode = COMMAND_CONFIG,
4734                 .jim_handler = jim_target_configure,
4735                 .help  = "configure a new target for use",
4736                 .usage = "[target_attribute ...]",
4737         },
4738         {
4739                 .name = "cget",
4740                 .mode = COMMAND_ANY,
4741                 .jim_handler = jim_target_configure,
4742                 .help  = "returns the specified target attribute",
4743                 .usage = "target_attribute",
4744         },
4745         {
4746                 .name = "mww",
4747                 .mode = COMMAND_EXEC,
4748                 .jim_handler = jim_target_mw,
4749                 .help = "Write 32-bit word(s) to target memory",
4750                 .usage = "address data [count]",
4751         },
4752         {
4753                 .name = "mwh",
4754                 .mode = COMMAND_EXEC,
4755                 .jim_handler = jim_target_mw,
4756                 .help = "Write 16-bit half-word(s) to target memory",
4757                 .usage = "address data [count]",
4758         },
4759         {
4760                 .name = "mwb",
4761                 .mode = COMMAND_EXEC,
4762                 .jim_handler = jim_target_mw,
4763                 .help = "Write byte(s) to target memory",
4764                 .usage = "address data [count]",
4765         },
4766         {
4767                 .name = "mdw",
4768                 .mode = COMMAND_EXEC,
4769                 .jim_handler = jim_target_md,
4770                 .help = "Display target memory as 32-bit words",
4771                 .usage = "address [count]",
4772         },
4773         {
4774                 .name = "mdh",
4775                 .mode = COMMAND_EXEC,
4776                 .jim_handler = jim_target_md,
4777                 .help = "Display target memory as 16-bit half-words",
4778                 .usage = "address [count]",
4779         },
4780         {
4781                 .name = "mdb",
4782                 .mode = COMMAND_EXEC,
4783                 .jim_handler = jim_target_md,
4784                 .help = "Display target memory as 8-bit bytes",
4785                 .usage = "address [count]",
4786         },
4787         {
4788                 .name = "array2mem",
4789                 .mode = COMMAND_EXEC,
4790                 .jim_handler = jim_target_array2mem,
4791                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4792                         "to target memory",
4793                 .usage = "arrayname bitwidth address count",
4794         },
4795         {
4796                 .name = "mem2array",
4797                 .mode = COMMAND_EXEC,
4798                 .jim_handler = jim_target_mem2array,
4799                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4800                         "from target memory",
4801                 .usage = "arrayname bitwidth address count",
4802         },
4803         {
4804                 .name = "eventlist",
4805                 .mode = COMMAND_EXEC,
4806                 .jim_handler = jim_target_event_list,
4807                 .help = "displays a table of events defined for this target",
4808         },
4809         {
4810                 .name = "curstate",
4811                 .mode = COMMAND_EXEC,
4812                 .jim_handler = jim_target_current_state,
4813                 .help = "displays the current state of this target",
4814         },
4815         {
4816                 .name = "arp_examine",
4817                 .mode = COMMAND_EXEC,
4818                 .jim_handler = jim_target_examine,
4819                 .help = "used internally for reset processing",
4820         },
4821         {
4822                 .name = "arp_halt_gdb",
4823                 .mode = COMMAND_EXEC,
4824                 .jim_handler = jim_target_halt_gdb,
4825                 .help = "used internally for reset processing to halt GDB",
4826         },
4827         {
4828                 .name = "arp_poll",
4829                 .mode = COMMAND_EXEC,
4830                 .jim_handler = jim_target_poll,
4831                 .help = "used internally for reset processing",
4832         },
4833         {
4834                 .name = "arp_reset",
4835                 .mode = COMMAND_EXEC,
4836                 .jim_handler = jim_target_reset,
4837                 .help = "used internally for reset processing",
4838         },
4839         {
4840                 .name = "arp_halt",
4841                 .mode = COMMAND_EXEC,
4842                 .jim_handler = jim_target_halt,
4843                 .help = "used internally for reset processing",
4844         },
4845         {
4846                 .name = "arp_waitstate",
4847                 .mode = COMMAND_EXEC,
4848                 .jim_handler = jim_target_wait_state,
4849                 .help = "used internally for reset processing",
4850         },
4851         {
4852                 .name = "invoke-event",
4853                 .mode = COMMAND_EXEC,
4854                 .jim_handler = jim_target_invoke_event,
4855                 .help = "invoke handler for specified event",
4856                 .usage = "event_name",
4857         },
4858         COMMAND_REGISTRATION_DONE
4859 };
4860
4861 static int target_create(Jim_GetOptInfo *goi)
4862 {
4863         Jim_Obj *new_cmd;
4864         Jim_Cmd *cmd;
4865         const char *cp;
4866         char *cp2;
4867         int e;
4868         int x;
4869         struct target *target;
4870         struct command_context *cmd_ctx;
4871
4872         cmd_ctx = current_command_context(goi->interp);
4873         assert(cmd_ctx != NULL);
4874
4875         if (goi->argc < 3) {
4876                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4877                 return JIM_ERR;
4878         }
4879
4880         /* COMMAND */
4881         Jim_GetOpt_Obj(goi, &new_cmd);
4882         /* does this command exist? */
4883         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4884         if (cmd) {
4885                 cp = Jim_GetString(new_cmd, NULL);
4886                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4887                 return JIM_ERR;
4888         }
4889
4890         /* TYPE */
4891         e = Jim_GetOpt_String(goi, &cp2, NULL);
4892         if (e != JIM_OK)
4893                 return e;
4894         cp = cp2;
4895         /* now does target type exist */
4896         for (x = 0 ; target_types[x] ; x++) {
4897                 if (0 == strcmp(cp, target_types[x]->name)) {
4898                         /* found */
4899                         break;
4900                 }
4901         }
4902         if (target_types[x] == NULL) {
4903                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4904                 for (x = 0 ; target_types[x] ; x++) {
4905                         if (target_types[x + 1]) {
4906                                 Jim_AppendStrings(goi->interp,
4907                                                                    Jim_GetResult(goi->interp),
4908                                                                    target_types[x]->name,
4909                                                                    ", ", NULL);
4910                         } else {
4911                                 Jim_AppendStrings(goi->interp,
4912                                                                    Jim_GetResult(goi->interp),
4913                                                                    " or ",
4914                                                                    target_types[x]->name, NULL);
4915                         }
4916                 }
4917                 return JIM_ERR;
4918         }
4919
4920         /* Create it */
4921         target = calloc(1, sizeof(struct target));
4922         /* set target number */
4923         target->target_number = new_target_number();
4924
4925         /* allocate memory for each unique target type */
4926         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
4927
4928         memcpy(target->type, target_types[x], sizeof(struct target_type));
4929
4930         /* will be set by "-endian" */
4931         target->endianness = TARGET_ENDIAN_UNKNOWN;
4932
4933         /* default to first core, override with -coreid */
4934         target->coreid = 0;
4935
4936         target->working_area        = 0x0;
4937         target->working_area_size   = 0x0;
4938         target->working_areas       = NULL;
4939         target->backup_working_area = 0;
4940
4941         target->state               = TARGET_UNKNOWN;
4942         target->debug_reason        = DBG_REASON_UNDEFINED;
4943         target->reg_cache           = NULL;
4944         target->breakpoints         = NULL;
4945         target->watchpoints         = NULL;
4946         target->next                = NULL;
4947         target->arch_info           = NULL;
4948
4949         target->display             = 1;
4950
4951         target->halt_issued                     = false;
4952
4953         /* initialize trace information */
4954         target->trace_info = malloc(sizeof(struct trace));
4955         target->trace_info->num_trace_points         = 0;
4956         target->trace_info->trace_points_size        = 0;
4957         target->trace_info->trace_points             = NULL;
4958         target->trace_info->trace_history_size       = 0;
4959         target->trace_info->trace_history            = NULL;
4960         target->trace_info->trace_history_pos        = 0;
4961         target->trace_info->trace_history_overflowed = 0;
4962
4963         target->dbgmsg          = NULL;
4964         target->dbg_msg_enabled = 0;
4965
4966         target->endianness = TARGET_ENDIAN_UNKNOWN;
4967
4968         target->rtos = NULL;
4969         target->rtos_auto_detect = false;
4970
4971         /* Do the rest as "configure" options */
4972         goi->isconfigure = 1;
4973         e = target_configure(goi, target);
4974
4975         if (target->tap == NULL) {
4976                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
4977                 e = JIM_ERR;
4978         }
4979
4980         if (e != JIM_OK) {
4981                 free(target->type);
4982                 free(target);
4983                 return e;
4984         }
4985
4986         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
4987                 /* default endian to little if not specified */
4988                 target->endianness = TARGET_LITTLE_ENDIAN;
4989         }
4990
4991         /* incase variant is not set */
4992         if (!target->variant)
4993                 target->variant = strdup("");
4994
4995         cp = Jim_GetString(new_cmd, NULL);
4996         target->cmd_name = strdup(cp);
4997
4998         /* create the target specific commands */
4999         if (target->type->commands) {
5000                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5001                 if (ERROR_OK != e)
5002                         LOG_ERROR("unable to register '%s' commands", cp);
5003         }
5004         if (target->type->target_create)
5005                 (*(target->type->target_create))(target, goi->interp);
5006
5007         /* append to end of list */
5008         {
5009                 struct target **tpp;
5010                 tpp = &(all_targets);
5011                 while (*tpp)
5012                         tpp = &((*tpp)->next);
5013                 *tpp = target;
5014         }
5015
5016         /* now - create the new target name command */
5017         const const struct command_registration target_subcommands[] = {
5018                 {
5019                         .chain = target_instance_command_handlers,
5020                 },
5021                 {
5022                         .chain = target->type->commands,
5023                 },
5024                 COMMAND_REGISTRATION_DONE
5025         };
5026         const const struct command_registration target_commands[] = {
5027                 {
5028                         .name = cp,
5029                         .mode = COMMAND_ANY,
5030                         .help = "target command group",
5031                         .usage = "",
5032                         .chain = target_subcommands,
5033                 },
5034                 COMMAND_REGISTRATION_DONE
5035         };
5036         e = register_commands(cmd_ctx, NULL, target_commands);
5037         if (ERROR_OK != e)
5038                 return JIM_ERR;
5039
5040         struct command *c = command_find_in_context(cmd_ctx, cp);
5041         assert(c);
5042         command_set_handler_data(c, target);
5043
5044         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5045 }
5046
5047 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5048 {
5049         if (argc != 1) {
5050                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5051                 return JIM_ERR;
5052         }
5053         struct command_context *cmd_ctx = current_command_context(interp);
5054         assert(cmd_ctx != NULL);
5055
5056         Jim_SetResultString(interp, get_current_target(cmd_ctx)->cmd_name, -1);
5057         return JIM_OK;
5058 }
5059
5060 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5061 {
5062         if (argc != 1) {
5063                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5064                 return JIM_ERR;
5065         }
5066         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5067         for (unsigned x = 0; NULL != target_types[x]; x++) {
5068                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5069                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5070         }
5071         return JIM_OK;
5072 }
5073
5074 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5075 {
5076         if (argc != 1) {
5077                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5078                 return JIM_ERR;
5079         }
5080         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5081         struct target *target = all_targets;
5082         while (target) {
5083                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5084                         Jim_NewStringObj(interp, target_name(target), -1));
5085                 target = target->next;
5086         }
5087         return JIM_OK;
5088 }
5089
5090 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5091 {
5092         int i;
5093         const char *targetname;
5094         int retval, len;
5095         struct target *target = (struct target *) NULL;
5096         struct target_list *head, *curr, *new;
5097         curr = (struct target_list *) NULL;
5098         head = (struct target_list *) NULL;
5099
5100         retval = 0;
5101         LOG_DEBUG("%d", argc);
5102         /* argv[1] = target to associate in smp
5103          * argv[2] = target to assoicate in smp
5104          * argv[3] ...
5105          */
5106
5107         for (i = 1; i < argc; i++) {
5108
5109                 targetname = Jim_GetString(argv[i], &len);
5110                 target = get_target(targetname);
5111                 LOG_DEBUG("%s ", targetname);
5112                 if (target) {
5113                         new = malloc(sizeof(struct target_list));
5114                         new->target = target;
5115                         new->next = (struct target_list *)NULL;
5116                         if (head == (struct target_list *)NULL) {
5117                                 head = new;
5118                                 curr = head;
5119                         } else {
5120                                 curr->next = new;
5121                                 curr = new;
5122                         }
5123                 }
5124         }
5125         /*  now parse the list of cpu and put the target in smp mode*/
5126         curr = head;
5127
5128         while (curr != (struct target_list *)NULL) {
5129                 target = curr->target;
5130                 target->smp = 1;
5131                 target->head = head;
5132                 curr = curr->next;
5133         }
5134
5135         if (target && target->rtos)
5136                 retval = rtos_smp_init(head->target);
5137
5138         return retval;
5139 }
5140
5141
5142 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5143 {
5144         Jim_GetOptInfo goi;
5145         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5146         if (goi.argc < 3) {
5147                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5148                         "<name> <target_type> [<target_options> ...]");
5149                 return JIM_ERR;
5150         }
5151         return target_create(&goi);
5152 }
5153
5154 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5155 {
5156         Jim_GetOptInfo goi;
5157         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5158
5159         /* It's OK to remove this mechanism sometime after August 2010 or so */
5160         LOG_WARNING("don't use numbers as target identifiers; use names");
5161         if (goi.argc != 1) {
5162                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5163                 return JIM_ERR;
5164         }
5165         jim_wide w;
5166         int e = Jim_GetOpt_Wide(&goi, &w);
5167         if (e != JIM_OK)
5168                 return JIM_ERR;
5169
5170         struct target *target;
5171         for (target = all_targets; NULL != target; target = target->next) {
5172                 if (target->target_number != w)
5173                         continue;
5174
5175                 Jim_SetResultString(goi.interp, target_name(target), -1);
5176                 return JIM_OK;
5177         }
5178         {
5179                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5180                 Jim_SetResultFormatted(goi.interp,
5181                         "Target: number %#s does not exist", wObj);
5182                 Jim_FreeNewObj(interp, wObj);
5183         }
5184         return JIM_ERR;
5185 }
5186
5187 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5188 {
5189         if (argc != 1) {
5190                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5191                 return JIM_ERR;
5192         }
5193         unsigned count = 0;
5194         struct target *target = all_targets;
5195         while (NULL != target) {
5196                 target = target->next;
5197                 count++;
5198         }
5199         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5200         return JIM_OK;
5201 }
5202
5203 static const struct command_registration target_subcommand_handlers[] = {
5204         {
5205                 .name = "init",
5206                 .mode = COMMAND_CONFIG,
5207                 .handler = handle_target_init_command,
5208                 .help = "initialize targets",
5209         },
5210         {
5211                 .name = "create",
5212                 /* REVISIT this should be COMMAND_CONFIG ... */
5213                 .mode = COMMAND_ANY,
5214                 .jim_handler = jim_target_create,
5215                 .usage = "name type '-chain-position' name [options ...]",
5216                 .help = "Creates and selects a new target",
5217         },
5218         {
5219                 .name = "current",
5220                 .mode = COMMAND_ANY,
5221                 .jim_handler = jim_target_current,
5222                 .help = "Returns the currently selected target",
5223         },
5224         {
5225                 .name = "types",
5226                 .mode = COMMAND_ANY,
5227                 .jim_handler = jim_target_types,
5228                 .help = "Returns the available target types as "
5229                                 "a list of strings",
5230         },
5231         {
5232                 .name = "names",
5233                 .mode = COMMAND_ANY,
5234                 .jim_handler = jim_target_names,
5235                 .help = "Returns the names of all targets as a list of strings",
5236         },
5237         {
5238                 .name = "number",
5239                 .mode = COMMAND_ANY,
5240                 .jim_handler = jim_target_number,
5241                 .usage = "number",
5242                 .help = "Returns the name of the numbered target "
5243                         "(DEPRECATED)",
5244         },
5245         {
5246                 .name = "count",
5247                 .mode = COMMAND_ANY,
5248                 .jim_handler = jim_target_count,
5249                 .help = "Returns the number of targets as an integer "
5250                         "(DEPRECATED)",
5251         },
5252         {
5253                 .name = "smp",
5254                 .mode = COMMAND_ANY,
5255                 .jim_handler = jim_target_smp,
5256                 .usage = "targetname1 targetname2 ...",
5257                 .help = "gather several target in a smp list"
5258         },
5259
5260         COMMAND_REGISTRATION_DONE
5261 };
5262
5263 struct FastLoad {
5264         uint32_t address;
5265         uint8_t *data;
5266         int length;
5267
5268 };
5269
5270 static int fastload_num;
5271 static struct FastLoad *fastload;
5272
5273 static void free_fastload(void)
5274 {
5275         if (fastload != NULL) {
5276                 int i;
5277                 for (i = 0; i < fastload_num; i++) {
5278                         if (fastload[i].data)
5279                                 free(fastload[i].data);
5280                 }
5281                 free(fastload);
5282                 fastload = NULL;
5283         }
5284 }
5285
5286 COMMAND_HANDLER(handle_fast_load_image_command)
5287 {
5288         uint8_t *buffer;
5289         size_t buf_cnt;
5290         uint32_t image_size;
5291         uint32_t min_address = 0;
5292         uint32_t max_address = 0xffffffff;
5293         int i;
5294
5295         struct image image;
5296
5297         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5298                         &image, &min_address, &max_address);
5299         if (ERROR_OK != retval)
5300                 return retval;
5301
5302         struct duration bench;
5303         duration_start(&bench);
5304
5305         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5306         if (retval != ERROR_OK)
5307                 return retval;
5308
5309         image_size = 0x0;
5310         retval = ERROR_OK;
5311         fastload_num = image.num_sections;
5312         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5313         if (fastload == NULL) {
5314                 command_print(CMD_CTX, "out of memory");
5315                 image_close(&image);
5316                 return ERROR_FAIL;
5317         }
5318         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5319         for (i = 0; i < image.num_sections; i++) {
5320                 buffer = malloc(image.sections[i].size);
5321                 if (buffer == NULL) {
5322                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5323                                                   (int)(image.sections[i].size));
5324                         retval = ERROR_FAIL;
5325                         break;
5326                 }
5327
5328                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5329                 if (retval != ERROR_OK) {
5330                         free(buffer);
5331                         break;
5332                 }
5333
5334                 uint32_t offset = 0;
5335                 uint32_t length = buf_cnt;
5336
5337                 /* DANGER!!! beware of unsigned comparision here!!! */
5338
5339                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5340                                 (image.sections[i].base_address < max_address)) {
5341                         if (image.sections[i].base_address < min_address) {
5342                                 /* clip addresses below */
5343                                 offset += min_address-image.sections[i].base_address;
5344                                 length -= offset;
5345                         }
5346
5347                         if (image.sections[i].base_address + buf_cnt > max_address)
5348                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5349
5350                         fastload[i].address = image.sections[i].base_address + offset;
5351                         fastload[i].data = malloc(length);
5352                         if (fastload[i].data == NULL) {
5353                                 free(buffer);
5354                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5355                                                           length);
5356                                 retval = ERROR_FAIL;
5357                                 break;
5358                         }
5359                         memcpy(fastload[i].data, buffer + offset, length);
5360                         fastload[i].length = length;
5361
5362                         image_size += length;
5363                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5364                                                   (unsigned int)length,
5365                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5366                 }
5367
5368                 free(buffer);
5369         }
5370
5371         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5372                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5373                                 "in %fs (%0.3f KiB/s)", image_size,
5374                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5375
5376                 command_print(CMD_CTX,
5377                                 "WARNING: image has not been loaded to target!"
5378                                 "You can issue a 'fast_load' to finish loading.");
5379         }
5380
5381         image_close(&image);
5382
5383         if (retval != ERROR_OK)
5384                 free_fastload();
5385
5386         return retval;
5387 }
5388
5389 COMMAND_HANDLER(handle_fast_load_command)
5390 {
5391         if (CMD_ARGC > 0)
5392                 return ERROR_COMMAND_SYNTAX_ERROR;
5393         if (fastload == NULL) {
5394                 LOG_ERROR("No image in memory");
5395                 return ERROR_FAIL;
5396         }
5397         int i;
5398         int ms = timeval_ms();
5399         int size = 0;
5400         int retval = ERROR_OK;
5401         for (i = 0; i < fastload_num; i++) {
5402                 struct target *target = get_current_target(CMD_CTX);
5403                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5404                                           (unsigned int)(fastload[i].address),
5405                                           (unsigned int)(fastload[i].length));
5406                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5407                 if (retval != ERROR_OK)
5408                         break;
5409                 size += fastload[i].length;
5410         }
5411         if (retval == ERROR_OK) {
5412                 int after = timeval_ms();
5413                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5414         }
5415         return retval;
5416 }
5417
5418 static const struct command_registration target_command_handlers[] = {
5419         {
5420                 .name = "targets",
5421                 .handler = handle_targets_command,
5422                 .mode = COMMAND_ANY,
5423                 .help = "change current default target (one parameter) "
5424                         "or prints table of all targets (no parameters)",
5425                 .usage = "[target]",
5426         },
5427         {
5428                 .name = "target",
5429                 .mode = COMMAND_CONFIG,
5430                 .help = "configure target",
5431
5432                 .chain = target_subcommand_handlers,
5433         },
5434         COMMAND_REGISTRATION_DONE
5435 };
5436
5437 int target_register_commands(struct command_context *cmd_ctx)
5438 {
5439         return register_commands(cmd_ctx, NULL, target_command_handlers);
5440 }
5441
5442 static bool target_reset_nag = true;
5443
5444 bool get_target_reset_nag(void)
5445 {
5446         return target_reset_nag;
5447 }
5448
5449 COMMAND_HANDLER(handle_target_reset_nag)
5450 {
5451         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5452                         &target_reset_nag, "Nag after each reset about options to improve "
5453                         "performance");
5454 }
5455
5456 COMMAND_HANDLER(handle_ps_command)
5457 {
5458         struct target *target = get_current_target(CMD_CTX);
5459         char *display;
5460         if (target->state != TARGET_HALTED) {
5461                 LOG_INFO("target not halted !!");
5462                 return ERROR_OK;
5463         }
5464
5465         if ((target->rtos) && (target->rtos->type)
5466                         && (target->rtos->type->ps_command)) {
5467                 display = target->rtos->type->ps_command(target);
5468                 command_print(CMD_CTX, "%s", display);
5469                 free(display);
5470                 return ERROR_OK;
5471         } else {
5472                 LOG_INFO("failed");
5473                 return ERROR_TARGET_FAILURE;
5474         }
5475 }
5476
5477 static const struct command_registration target_exec_command_handlers[] = {
5478         {
5479                 .name = "fast_load_image",
5480                 .handler = handle_fast_load_image_command,
5481                 .mode = COMMAND_ANY,
5482                 .help = "Load image into server memory for later use by "
5483                         "fast_load; primarily for profiling",
5484                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5485                         "[min_address [max_length]]",
5486         },
5487         {
5488                 .name = "fast_load",
5489                 .handler = handle_fast_load_command,
5490                 .mode = COMMAND_EXEC,
5491                 .help = "loads active fast load image to current target "
5492                         "- mainly for profiling purposes",
5493                 .usage = "",
5494         },
5495         {
5496                 .name = "profile",
5497                 .handler = handle_profile_command,
5498                 .mode = COMMAND_EXEC,
5499                 .usage = "seconds filename",
5500                 .help = "profiling samples the CPU PC",
5501         },
5502         /** @todo don't register virt2phys() unless target supports it */
5503         {
5504                 .name = "virt2phys",
5505                 .handler = handle_virt2phys_command,
5506                 .mode = COMMAND_ANY,
5507                 .help = "translate a virtual address into a physical address",
5508                 .usage = "virtual_address",
5509         },
5510         {
5511                 .name = "reg",
5512                 .handler = handle_reg_command,
5513                 .mode = COMMAND_EXEC,
5514                 .help = "display or set a register; with no arguments, "
5515                         "displays all registers and their values",
5516                 .usage = "[(register_name|register_number) [value]]",
5517         },
5518         {
5519                 .name = "poll",
5520                 .handler = handle_poll_command,
5521                 .mode = COMMAND_EXEC,
5522                 .help = "poll target state; or reconfigure background polling",
5523                 .usage = "['on'|'off']",
5524         },
5525         {
5526                 .name = "wait_halt",
5527                 .handler = handle_wait_halt_command,
5528                 .mode = COMMAND_EXEC,
5529                 .help = "wait up to the specified number of milliseconds "
5530                         "(default 5) for a previously requested halt",
5531                 .usage = "[milliseconds]",
5532         },
5533         {
5534                 .name = "halt",
5535                 .handler = handle_halt_command,
5536                 .mode = COMMAND_EXEC,
5537                 .help = "request target to halt, then wait up to the specified"
5538                         "number of milliseconds (default 5) for it to complete",
5539                 .usage = "[milliseconds]",
5540         },
5541         {
5542                 .name = "resume",
5543                 .handler = handle_resume_command,
5544                 .mode = COMMAND_EXEC,
5545                 .help = "resume target execution from current PC or address",
5546                 .usage = "[address]",
5547         },
5548         {
5549                 .name = "reset",
5550                 .handler = handle_reset_command,
5551                 .mode = COMMAND_EXEC,
5552                 .usage = "[run|halt|init]",
5553                 .help = "Reset all targets into the specified mode."
5554                         "Default reset mode is run, if not given.",
5555         },
5556         {
5557                 .name = "soft_reset_halt",
5558                 .handler = handle_soft_reset_halt_command,
5559                 .mode = COMMAND_EXEC,
5560                 .usage = "",
5561                 .help = "halt the target and do a soft reset",
5562         },
5563         {
5564                 .name = "step",
5565                 .handler = handle_step_command,
5566                 .mode = COMMAND_EXEC,
5567                 .help = "step one instruction from current PC or address",
5568                 .usage = "[address]",
5569         },
5570         {
5571                 .name = "mdw",
5572                 .handler = handle_md_command,
5573                 .mode = COMMAND_EXEC,
5574                 .help = "display memory words",
5575                 .usage = "['phys'] address [count]",
5576         },
5577         {
5578                 .name = "mdh",
5579                 .handler = handle_md_command,
5580                 .mode = COMMAND_EXEC,
5581                 .help = "display memory half-words",
5582                 .usage = "['phys'] address [count]",
5583         },
5584         {
5585                 .name = "mdb",
5586                 .handler = handle_md_command,
5587                 .mode = COMMAND_EXEC,
5588                 .help = "display memory bytes",
5589                 .usage = "['phys'] address [count]",
5590         },
5591         {
5592                 .name = "mww",
5593                 .handler = handle_mw_command,
5594                 .mode = COMMAND_EXEC,
5595                 .help = "write memory word",
5596                 .usage = "['phys'] address value [count]",
5597         },
5598         {
5599                 .name = "mwh",
5600                 .handler = handle_mw_command,
5601                 .mode = COMMAND_EXEC,
5602                 .help = "write memory half-word",
5603                 .usage = "['phys'] address value [count]",
5604         },
5605         {
5606                 .name = "mwb",
5607                 .handler = handle_mw_command,
5608                 .mode = COMMAND_EXEC,
5609                 .help = "write memory byte",
5610                 .usage = "['phys'] address value [count]",
5611         },
5612         {
5613                 .name = "bp",
5614                 .handler = handle_bp_command,
5615                 .mode = COMMAND_EXEC,
5616                 .help = "list or set hardware or software breakpoint",
5617                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5618         },
5619         {
5620                 .name = "rbp",
5621                 .handler = handle_rbp_command,
5622                 .mode = COMMAND_EXEC,
5623                 .help = "remove breakpoint",
5624                 .usage = "address",
5625         },
5626         {
5627                 .name = "wp",
5628                 .handler = handle_wp_command,
5629                 .mode = COMMAND_EXEC,
5630                 .help = "list (no params) or create watchpoints",
5631                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5632         },
5633         {
5634                 .name = "rwp",
5635                 .handler = handle_rwp_command,
5636                 .mode = COMMAND_EXEC,
5637                 .help = "remove watchpoint",
5638                 .usage = "address",
5639         },
5640         {
5641                 .name = "load_image",
5642                 .handler = handle_load_image_command,
5643                 .mode = COMMAND_EXEC,
5644                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5645                         "[min_address] [max_length]",
5646         },
5647         {
5648                 .name = "dump_image",
5649                 .handler = handle_dump_image_command,
5650                 .mode = COMMAND_EXEC,
5651                 .usage = "filename address size",
5652         },
5653         {
5654                 .name = "verify_image",
5655                 .handler = handle_verify_image_command,
5656                 .mode = COMMAND_EXEC,
5657                 .usage = "filename [offset [type]]",
5658         },
5659         {
5660                 .name = "test_image",
5661                 .handler = handle_test_image_command,
5662                 .mode = COMMAND_EXEC,
5663                 .usage = "filename [offset [type]]",
5664         },
5665         {
5666                 .name = "mem2array",
5667                 .mode = COMMAND_EXEC,
5668                 .jim_handler = jim_mem2array,
5669                 .help = "read 8/16/32 bit memory and return as a TCL array "
5670                         "for script processing",
5671                 .usage = "arrayname bitwidth address count",
5672         },
5673         {
5674                 .name = "array2mem",
5675                 .mode = COMMAND_EXEC,
5676                 .jim_handler = jim_array2mem,
5677                 .help = "convert a TCL array to memory locations "
5678                         "and write the 8/16/32 bit values",
5679                 .usage = "arrayname bitwidth address count",
5680         },
5681         {
5682                 .name = "reset_nag",
5683                 .handler = handle_target_reset_nag,
5684                 .mode = COMMAND_ANY,
5685                 .help = "Nag after each reset about options that could have been "
5686                                 "enabled to improve performance. ",
5687                 .usage = "['enable'|'disable']",
5688         },
5689         {
5690                 .name = "ps",
5691                 .handler = handle_ps_command,
5692                 .mode = COMMAND_EXEC,
5693                 .help = "list all tasks ",
5694                 .usage = " ",
5695         },
5696
5697         COMMAND_REGISTRATION_DONE
5698 };
5699 static int target_register_user_commands(struct command_context *cmd_ctx)
5700 {
5701         int retval = ERROR_OK;
5702         retval = target_request_register_commands(cmd_ctx);
5703         if (retval != ERROR_OK)
5704                 return retval;
5705
5706         retval = trace_register_commands(cmd_ctx);
5707         if (retval != ERROR_OK)
5708                 return retval;
5709
5710
5711         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5712 }