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