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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007-2010 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   Copyright (C) 2008 by Spencer Oliver                                  *
  12  *   spen@spen-soft.co.uk                                                  *
  13  *                                                                         *
  14  *   Copyright (C) 2008 by Rick Altherr                                    *
  15  *   kc8apf@kc8apf.net>                                                    *
  16  *                                                                         *
  17  *   Copyright (C) 2011 by Broadcom Corporation                            *
  18  *   Evan Hunter - ehunter@broadcom.com                                    *
  19  *                                                                         *
  20  *   Copyright (C) ST-Ericsson SA 2011                                     *
  21  *   michel.jaouen@stericsson.com : smp minimum support                    *
  22  *                                                                         *
  23  *   Copyright (C) 2011 Andreas Fritiofson                                 *
  24  *   andreas.fritiofson@gmail.com                                          *
  25  *                                                                         *
  26  *   This program is free software; you can redistribute it and/or modify  *
  27  *   it under the terms of the GNU General Public License as published by  *
  28  *   the Free Software Foundation; either version 2 of the License, or     *
  29  *   (at your option) any later version.                                   *
  30  *                                                                         *
  31  *   This program is distributed in the hope that it will be useful,       *
  32  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  33  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  34  *   GNU General Public License for more details.                          *
  35  *                                                                         *
  36  *   You should have received a copy of the GNU General Public License     *
  37  *   along with this program; if not, write to the                         *
  38  *   Free Software Foundation, Inc.,                                       *
  39  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  40  ***************************************************************************/
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #endif
  45
  46 #include <helper/time_support.h>
  47 #include <jtag/jtag.h>
  48 #include <flash/nor/core.h>
  49
  50 #include "target.h"
  51 #include "target_type.h"
  52 #include "target_request.h"
  53 #include "breakpoints.h"
  54 #include "register.h"
  55 #include "trace.h"
  56 #include "image.h"
  57 #include "rtos/rtos.h"
  58
  59 /* default halt wait timeout (ms) */
  60 #define DEFAULT_HALT_TIMEOUT 5000
  61
  62 static int target_read_buffer_default(struct target *target, uint32_t address,
  63                 uint32_t count, uint8_t *buffer);
  64 static int target_write_buffer_default(struct target *target, uint32_t address,
  65                 uint32_t count, const uint8_t *buffer);
  66 static int target_array2mem(Jim_Interp *interp, struct target *target,
  67                 int argc, Jim_Obj * const *argv);
  68 static int target_mem2array(Jim_Interp *interp, struct target *target,
  69                 int argc, Jim_Obj * const *argv);
  70 static int target_register_user_commands(struct command_context *cmd_ctx);
  71 static int target_get_gdb_fileio_info_default(struct target *target,
  72                 struct gdb_fileio_info *fileio_info);
  73 static int target_gdb_fileio_end_default(struct target *target, int retcode,
  74                 int fileio_errno, bool ctrl_c);
  75
  76 /* targets */
  77 extern struct target_type arm7tdmi_target;
  78 extern struct target_type arm720t_target;
  79 extern struct target_type arm9tdmi_target;
  80 extern struct target_type arm920t_target;
  81 extern struct target_type arm966e_target;
  82 extern struct target_type arm946e_target;
  83 extern struct target_type arm926ejs_target;
  84 extern struct target_type fa526_target;
  85 extern struct target_type feroceon_target;
  86 extern struct target_type dragonite_target;
  87 extern struct target_type xscale_target;
  88 extern struct target_type cortexm3_target;
  89 extern struct target_type cortexa8_target;
  90 extern struct target_type cortexr4_target;
  91 extern struct target_type arm11_target;
  92 extern struct target_type mips_m4k_target;
  93 extern struct target_type avr_target;
  94 extern struct target_type dsp563xx_target;
  95 extern struct target_type dsp5680xx_target;
  96 extern struct target_type testee_target;
  97 extern struct target_type avr32_ap7k_target;
  98 extern struct target_type hla_target;
  99 extern struct target_type nds32_v2_target;
 100 extern struct target_type nds32_v3_target;
 101 extern struct target_type nds32_v3m_target;
 102
 103 static struct target_type *target_types[] = {
 104         &arm7tdmi_target,
 105         &arm9tdmi_target,
 106         &arm920t_target,
 107         &arm720t_target,
 108         &arm966e_target,
 109         &arm946e_target,
 110         &arm926ejs_target,
 111         &fa526_target,
 112         &feroceon_target,
 113         &dragonite_target,
 114         &xscale_target,
 115         &cortexm3_target,
 116         &cortexa8_target,
 117         &cortexr4_target,
 118         &arm11_target,
 119         &mips_m4k_target,
 120         &avr_target,
 121         &dsp563xx_target,
 122         &dsp5680xx_target,
 123         &testee_target,
 124         &avr32_ap7k_target,
 125         &hla_target,
 126         &nds32_v2_target,
 127         &nds32_v3_target,
 128         &nds32_v3m_target,
 129         NULL,
 130 };
 131
 132 struct target *all_targets;
 133 static struct target_event_callback *target_event_callbacks;
 134 static struct target_timer_callback *target_timer_callbacks;
 135 static const int polling_interval = 100;
 136
 137 static const Jim_Nvp nvp_assert[] = {
 138         { .name = "assert", NVP_ASSERT },
 139         { .name = "deassert", NVP_DEASSERT },
 140         { .name = "T", NVP_ASSERT },
 141         { .name = "F", NVP_DEASSERT },
 142         { .name = "t", NVP_ASSERT },
 143         { .name = "f", NVP_DEASSERT },
 144         { .name = NULL, .value = -1 }
 145 };
 146
 147 static const Jim_Nvp nvp_error_target[] = {
 148         { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
 149         { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
 150         { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
 151         { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
 152         { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
 153         { .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
 154         { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
 155         { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
 156         { .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
 157         { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
 158         { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
 159         { .value = -1, .name = NULL }
 160 };
 161
 162 static const char *target_strerror_safe(int err)
 163 {
 164         const Jim_Nvp *n;
 165
 166         n = Jim_Nvp_value2name_simple(nvp_error_target, err);
 167         if (n->name == NULL)
 168                 return "unknown";
 169         else
 170                 return n->name;
 171 }
 172
 173 static const Jim_Nvp nvp_target_event[] = {
 174
 175         { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
 176         { .value = TARGET_EVENT_HALTED, .name = "halted" },
 177         { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
 178         { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
 179         { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
 180
 181         { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
 182         { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
 183
 184         { .value = TARGET_EVENT_RESET_START,         .name = "reset-start" },
 185         { .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
 186         { .value = TARGET_EVENT_RESET_ASSERT,        .name = "reset-assert" },
 187         { .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
 188         { .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
 189         { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
 190         { .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
 191         { .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
 192         { .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
 193         { .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
 194         { .value = TARGET_EVENT_RESET_INIT,          .name = "reset-init" },
 195         { .value = TARGET_EVENT_RESET_END,           .name = "reset-end" },
 196
 197         { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
 198         { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
 199
 200         { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
 201         { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
 202
 203         { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
 204         { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
 205
 206         { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
 207         { .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
 208
 209         { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
 210         { .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
 211
 212         { .name = NULL, .value = -1 }
 213 };
 214
 215 static const Jim_Nvp nvp_target_state[] = {
 216         { .name = "unknown", .value = TARGET_UNKNOWN },
 217         { .name = "running", .value = TARGET_RUNNING },
 218         { .name = "halted",  .value = TARGET_HALTED },
 219         { .name = "reset",   .value = TARGET_RESET },
 220         { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
 221         { .name = NULL, .value = -1 },
 222 };
 223
 224 static const Jim_Nvp nvp_target_debug_reason[] = {
 225         { .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
 226         { .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
 227         { .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
 228         { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
 229         { .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
 230         { .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
 231         { .name = "program-exit"             , .value = DBG_REASON_EXIT },
 232         { .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
 233         { .name = NULL, .value = -1 },
 234 };
 235
 236 static const Jim_Nvp nvp_target_endian[] = {
 237         { .name = "big",    .value = TARGET_BIG_ENDIAN },
 238         { .name = "little", .value = TARGET_LITTLE_ENDIAN },
 239         { .name = "be",     .value = TARGET_BIG_ENDIAN },
 240         { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
 241         { .name = NULL,     .value = -1 },
 242 };
 243
 244 static const Jim_Nvp nvp_reset_modes[] = {
 245         { .name = "unknown", .value = RESET_UNKNOWN },
 246         { .name = "run"    , .value = RESET_RUN },
 247         { .name = "halt"   , .value = RESET_HALT },
 248         { .name = "init"   , .value = RESET_INIT },
 249         { .name = NULL     , .value = -1 },
 250 };
 251
 252 const char *debug_reason_name(struct target *t)
 253 {
 254         const char *cp;
 255
 256         cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
 257                         t->debug_reason)->name;
 258         if (!cp) {
 259                 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
 260                 cp = "(*BUG*unknown*BUG*)";
 261         }
 262         return cp;
 263 }
 264
 265 const char *target_state_name(struct target *t)
 266 {
 267         const char *cp;
 268         cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
 269         if (!cp) {
 270                 LOG_ERROR("Invalid target state: %d", (int)(t->state));
 271                 cp = "(*BUG*unknown*BUG*)";
 272         }
 273         return cp;
 274 }
 275
 276 /* determine the number of the new target */
 277 static int new_target_number(void)
 278 {
 279         struct target *t;
 280         int x;
 281
 282         /* number is 0 based */
 283         x = -1;
 284         t = all_targets;
 285         while (t) {
 286                 if (x < t->target_number)
 287                         x = t->target_number;
 288                 t = t->next;
 289         }
 290         return x + 1;
 291 }
 292
 293 /* read a uint32_t from a buffer in target memory endianness */
 294 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
 295 {
 296         if (target->endianness == TARGET_LITTLE_ENDIAN)
 297                 return le_to_h_u32(buffer);
 298         else
 299                 return be_to_h_u32(buffer);
 300 }
 301
 302 /* read a uint24_t from a buffer in target memory endianness */
 303 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
 304 {
 305         if (target->endianness == TARGET_LITTLE_ENDIAN)
 306                 return le_to_h_u24(buffer);
 307         else
 308                 return be_to_h_u24(buffer);
 309 }
 310
 311 /* read a uint16_t from a buffer in target memory endianness */
 312 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
 313 {
 314         if (target->endianness == TARGET_LITTLE_ENDIAN)
 315                 return le_to_h_u16(buffer);
 316         else
 317                 return be_to_h_u16(buffer);
 318 }
 319
 320 /* read a uint8_t from a buffer in target memory endianness */
 321 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
 322 {
 323         return *buffer & 0x0ff;
 324 }
 325
 326 /* write a uint32_t to a buffer in target memory endianness */
 327 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
 328 {
 329         if (target->endianness == TARGET_LITTLE_ENDIAN)
 330                 h_u32_to_le(buffer, value);
 331         else
 332                 h_u32_to_be(buffer, value);
 333 }
 334
 335 /* write a uint24_t to a buffer in target memory endianness */
 336 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
 337 {
 338         if (target->endianness == TARGET_LITTLE_ENDIAN)
 339                 h_u24_to_le(buffer, value);
 340         else
 341                 h_u24_to_be(buffer, value);
 342 }
 343
 344 /* write a uint16_t to a buffer in target memory endianness */
 345 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
 346 {
 347         if (target->endianness == TARGET_LITTLE_ENDIAN)
 348                 h_u16_to_le(buffer, value);
 349         else
 350                 h_u16_to_be(buffer, value);
 351 }
 352
 353 /* write a uint8_t to a buffer in target memory endianness */
 354 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
 355 {
 356         *buffer = value;
 357 }
 358
 359 /* write a uint32_t array to a buffer in target memory endianness */
 360 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
 361 {
 362         uint32_t i;
 363         for (i = 0; i < count; i++)
 364                 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
 365 }
 366
 367 /* write a uint16_t array to a buffer in target memory endianness */
 368 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
 369 {
 370         uint32_t i;
 371         for (i = 0; i < count; i++)
 372                 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
 373 }
 374
 375 /* write a uint32_t array to a buffer in target memory endianness */
 376 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, uint32_t *srcbuf)
 377 {
 378         uint32_t i;
 379         for (i = 0; i < count; i++)
 380                 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
 381 }
 382
 383 /* write a uint16_t array to a buffer in target memory endianness */
 384 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, uint16_t *srcbuf)
 385 {
 386         uint32_t i;
 387         for (i = 0; i < count; i++)
 388                 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
 389 }
 390
 391 /* return a pointer to a configured target; id is name or number */
 392 struct target *get_target(const char *id)
 393 {
 394         struct target *target;
 395
 396         /* try as tcltarget name */
 397         for (target = all_targets; target; target = target->next) {
 398                 if (target_name(target) == NULL)
 399                         continue;
 400                 if (strcmp(id, target_name(target)) == 0)
 401                         return target;
 402         }
 403
 404         /* It's OK to remove this fallback sometime after August 2010 or so */
 405
 406         /* no match, try as number */
 407         unsigned num;
 408         if (parse_uint(id, &num) != ERROR_OK)
 409                 return NULL;
 410
 411         for (target = all_targets; target; target = target->next) {
 412                 if (target->target_number == (int)num) {
 413                         LOG_WARNING("use '%s' as target identifier, not '%u'",
 414                                         target_name(target), num);
 415                         return target;
 416                 }
 417         }
 418
 419         return NULL;
 420 }
 421
 422 /* returns a pointer to the n-th configured target */
 423 static struct target *get_target_by_num(int num)
 424 {
 425         struct target *target = all_targets;
 426
 427         while (target) {
 428                 if (target->target_number == num)
 429                         return target;
 430                 target = target->next;
 431         }
 432
 433         return NULL;
 434 }
 435
 436 struct target *get_current_target(struct command_context *cmd_ctx)
 437 {
 438         struct target *target = get_target_by_num(cmd_ctx->current_target);
 439
 440         if (target == NULL) {
 441                 LOG_ERROR("BUG: current_target out of bounds");
 442                 exit(-1);
 443         }
 444
 445         return target;
 446 }
 447
 448 int target_poll(struct target *target)
 449 {
 450         int retval;
 451
 452         /* We can't poll until after examine */
 453         if (!target_was_examined(target)) {
 454                 /* Fail silently lest we pollute the log */
 455                 return ERROR_FAIL;
 456         }
 457
 458         retval = target->type->poll(target);
 459         if (retval != ERROR_OK)
 460                 return retval;
 461
 462         if (target->halt_issued) {
 463                 if (target->state == TARGET_HALTED)
 464                         target->halt_issued = false;
 465                 else {
 466                         long long t = timeval_ms() - target->halt_issued_time;
 467                         if (t > DEFAULT_HALT_TIMEOUT) {
 468                                 target->halt_issued = false;
 469                                 LOG_INFO("Halt timed out, wake up GDB.");
 470                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
 471                         }
 472                 }
 473         }
 474
 475         return ERROR_OK;
 476 }
 477
 478 int target_halt(struct target *target)
 479 {
 480         int retval;
 481         /* We can't poll until after examine */
 482         if (!target_was_examined(target)) {
 483                 LOG_ERROR("Target not examined yet");
 484                 return ERROR_FAIL;
 485         }
 486
 487         retval = target->type->halt(target);
 488         if (retval != ERROR_OK)
 489                 return retval;
 490
 491         target->halt_issued = true;
 492         target->halt_issued_time = timeval_ms();
 493
 494         return ERROR_OK;
 495 }
 496
 497 /**
 498  * Make the target (re)start executing using its saved execution
 499  * context (possibly with some modifications).
 500  *
 501  * @param target Which target should start executing.
 502  * @param current True to use the target's saved program counter instead
 503  *      of the address parameter
 504  * @param address Optionally used as the program counter.
 505  * @param handle_breakpoints True iff breakpoints at the resumption PC
 506  *      should be skipped.  (For example, maybe execution was stopped by
 507  *      such a breakpoint, in which case it would be counterprodutive to
 508  *      let it re-trigger.
 509  * @param debug_execution False if all working areas allocated by OpenOCD
 510  *      should be released and/or restored to their original contents.
 511  *      (This would for example be true to run some downloaded "helper"
 512  *      algorithm code, which resides in one such working buffer and uses
 513  *      another for data storage.)
 514  *
 515  * @todo Resolve the ambiguity about what the "debug_execution" flag
 516  * signifies.  For example, Target implementations don't agree on how
 517  * it relates to invalidation of the register cache, or to whether
 518  * breakpoints and watchpoints should be enabled.  (It would seem wrong
 519  * to enable breakpoints when running downloaded "helper" algorithms
 520  * (debug_execution true), since the breakpoints would be set to match
 521  * target firmware being debugged, not the helper algorithm.... and
 522  * enabling them could cause such helpers to malfunction (for example,
 523  * by overwriting data with a breakpoint instruction.  On the other
 524  * hand the infrastructure for running such helpers might use this
 525  * procedure but rely on hardware breakpoint to detect termination.)
 526  */
 527 int target_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 528 {
 529         int retval;
 530
 531         /* We can't poll until after examine */
 532         if (!target_was_examined(target)) {
 533                 LOG_ERROR("Target not examined yet");
 534                 return ERROR_FAIL;
 535         }
 536
 537         target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
 538
 539         /* note that resume *must* be asynchronous. The CPU can halt before
 540          * we poll. The CPU can even halt at the current PC as a result of
 541          * a software breakpoint being inserted by (a bug?) the application.
 542          */
 543         retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
 544         if (retval != ERROR_OK)
 545                 return retval;
 546
 547         target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
 548
 549         return retval;
 550 }
 551
 552 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
 553 {
 554         char buf[100];
 555         int retval;
 556         Jim_Nvp *n;
 557         n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
 558         if (n->name == NULL) {
 559                 LOG_ERROR("invalid reset mode");
 560                 return ERROR_FAIL;
 561         }
 562
 563         /* disable polling during reset to make reset event scripts
 564          * more predictable, i.e. dr/irscan & pathmove in events will
 565          * not have JTAG operations injected into the middle of a sequence.
 566          */
 567         bool save_poll = jtag_poll_get_enabled();
 568
 569         jtag_poll_set_enabled(false);
 570
 571         sprintf(buf, "ocd_process_reset %s", n->name);
 572         retval = Jim_Eval(cmd_ctx->interp, buf);
 573
 574         jtag_poll_set_enabled(save_poll);
 575
 576         if (retval != JIM_OK) {
 577                 Jim_MakeErrorMessage(cmd_ctx->interp);
 578                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
 579                 return ERROR_FAIL;
 580         }
 581
 582         /* We want any events to be processed before the prompt */
 583         retval = target_call_timer_callbacks_now();
 584
 585         struct target *target;
 586         for (target = all_targets; target; target = target->next) {
 587                 target->type->check_reset(target);
 588                 target->running_alg = false;
 589         }
 590
 591         return retval;
 592 }
 593
 594 static int identity_virt2phys(struct target *target,
 595                 uint32_t virtual, uint32_t *physical)
 596 {
 597         *physical = virtual;
 598         return ERROR_OK;
 599 }
 600
 601 static int no_mmu(struct target *target, int *enabled)
 602 {
 603         *enabled = 0;
 604         return ERROR_OK;
 605 }
 606
 607 static int default_examine(struct target *target)
 608 {
 609         target_set_examined(target);
 610         return ERROR_OK;
 611 }
 612
 613 /* no check by default */
 614 static int default_check_reset(struct target *target)
 615 {
 616         return ERROR_OK;
 617 }
 618
 619 int target_examine_one(struct target *target)
 620 {
 621         return target->type->examine(target);
 622 }
 623
 624 static int jtag_enable_callback(enum jtag_event event, void *priv)
 625 {
 626         struct target *target = priv;
 627
 628         if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
 629                 return ERROR_OK;
 630
 631         jtag_unregister_event_callback(jtag_enable_callback, target);
 632
 633         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 634
 635         int retval = target_examine_one(target);
 636         if (retval != ERROR_OK)
 637                 return retval;
 638
 639         target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 640
 641         return retval;
 642 }
 643
 644 /* Targets that correctly implement init + examine, i.e.
 645  * no communication with target during init:
 646  *
 647  * XScale
 648  */
 649 int target_examine(void)
 650 {
 651         int retval = ERROR_OK;
 652         struct target *target;
 653
 654         for (target = all_targets; target; target = target->next) {
 655                 /* defer examination, but don't skip it */
 656                 if (!target->tap->enabled) {
 657                         jtag_register_event_callback(jtag_enable_callback,
 658                                         target);
 659                         continue;
 660                 }
 661
 662                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
 663
 664                 retval = target_examine_one(target);
 665                 if (retval != ERROR_OK)
 666                         return retval;
 667
 668                 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
 669         }
 670         return retval;
 671 }
 672
 673 const char *target_type_name(struct target *target)
 674 {
 675         return target->type->name;
 676 }
 677
 678 static int target_soft_reset_halt(struct target *target)
 679 {
 680         if (!target_was_examined(target)) {
 681                 LOG_ERROR("Target not examined yet");
 682                 return ERROR_FAIL;
 683         }
 684         if (!target->type->soft_reset_halt) {
 685                 LOG_ERROR("Target %s does not support soft_reset_halt",
 686                                 target_name(target));
 687                 return ERROR_FAIL;
 688         }
 689         return target->type->soft_reset_halt(target);
 690 }
 691
 692 /**
 693  * Downloads a target-specific native code algorithm to the target,
 694  * and executes it.  * Note that some targets may need to set up, enable,
 695  * and tear down a breakpoint (hard or * soft) to detect algorithm
 696  * termination, while others may support  lower overhead schemes where
 697  * soft breakpoints embedded in the algorithm automatically terminate the
 698  * algorithm.
 699  *
 700  * @param target used to run the algorithm
 701  * @param arch_info target-specific description of the algorithm.
 702  */
 703 int target_run_algorithm(struct target *target,
 704                 int num_mem_params, struct mem_param *mem_params,
 705                 int num_reg_params, struct reg_param *reg_param,
 706                 uint32_t entry_point, uint32_t exit_point,
 707                 int timeout_ms, void *arch_info)
 708 {
 709         int retval = ERROR_FAIL;
 710
 711         if (!target_was_examined(target)) {
 712                 LOG_ERROR("Target not examined yet");
 713                 goto done;
 714         }
 715         if (!target->type->run_algorithm) {
 716                 LOG_ERROR("Target type '%s' does not support %s",
 717                                 target_type_name(target), __func__);
 718                 goto done;
 719         }
 720
 721         target->running_alg = true;
 722         retval = target->type->run_algorithm(target,
 723                         num_mem_params, mem_params,
 724                         num_reg_params, reg_param,
 725                         entry_point, exit_point, timeout_ms, arch_info);
 726         target->running_alg = false;
 727
 728 done:
 729         return retval;
 730 }
 731
 732 /**
 733  * Downloads a target-specific native code algorithm to the target,
 734  * executes and leaves it running.
 735  *
 736  * @param target used to run the algorithm
 737  * @param arch_info target-specific description of the algorithm.
 738  */
 739 int target_start_algorithm(struct target *target,
 740                 int num_mem_params, struct mem_param *mem_params,
 741                 int num_reg_params, struct reg_param *reg_params,
 742                 uint32_t entry_point, uint32_t exit_point,
 743                 void *arch_info)
 744 {
 745         int retval = ERROR_FAIL;
 746
 747         if (!target_was_examined(target)) {
 748                 LOG_ERROR("Target not examined yet");
 749                 goto done;
 750         }
 751         if (!target->type->start_algorithm) {
 752                 LOG_ERROR("Target type '%s' does not support %s",
 753                                 target_type_name(target), __func__);
 754                 goto done;
 755         }
 756         if (target->running_alg) {
 757                 LOG_ERROR("Target is already running an algorithm");
 758                 goto done;
 759         }
 760
 761         target->running_alg = true;
 762         retval = target->type->start_algorithm(target,
 763                         num_mem_params, mem_params,
 764                         num_reg_params, reg_params,
 765                         entry_point, exit_point, arch_info);
 766
 767 done:
 768         return retval;
 769 }
 770
 771 /**
 772  * Waits for an algorithm started with target_start_algorithm() to complete.
 773  *
 774  * @param target used to run the algorithm
 775  * @param arch_info target-specific description of the algorithm.
 776  */
 777 int target_wait_algorithm(struct target *target,
 778                 int num_mem_params, struct mem_param *mem_params,
 779                 int num_reg_params, struct reg_param *reg_params,
 780                 uint32_t exit_point, int timeout_ms,
 781                 void *arch_info)
 782 {
 783         int retval = ERROR_FAIL;
 784
 785         if (!target->type->wait_algorithm) {
 786                 LOG_ERROR("Target type '%s' does not support %s",
 787                                 target_type_name(target), __func__);
 788                 goto done;
 789         }
 790         if (!target->running_alg) {
 791                 LOG_ERROR("Target is not running an algorithm");
 792                 goto done;
 793         }
 794
 795         retval = target->type->wait_algorithm(target,
 796                         num_mem_params, mem_params,
 797                         num_reg_params, reg_params,
 798                         exit_point, timeout_ms, arch_info);
 799         if (retval != ERROR_TARGET_TIMEOUT)
 800                 target->running_alg = false;
 801
 802 done:
 803         return retval;
 804 }
 805
 806 /**
 807  * Executes a target-specific native code algorithm in the target.
 808  * It differs from target_run_algorithm in that the algorithm is asynchronous.
 809  * Because of this it requires an compliant algorithm:
 810  * see contrib/loaders/flash/stm32f1x.S for example.
 811  *
 812  * @param target used to run the algorithm
 813  */
 814
 815 int target_run_flash_async_algorithm(struct target *target,
 816                 uint8_t *buffer, uint32_t count, int block_size,
 817                 int num_mem_params, struct mem_param *mem_params,
 818                 int num_reg_params, struct reg_param *reg_params,
 819                 uint32_t buffer_start, uint32_t buffer_size,
 820                 uint32_t entry_point, uint32_t exit_point, void *arch_info)
 821 {
 822         int retval;
 823         int timeout = 0;
 824
 825         /* Set up working area. First word is write pointer, second word is read pointer,
 826          * rest is fifo data area. */
 827         uint32_t wp_addr = buffer_start;
 828         uint32_t rp_addr = buffer_start + 4;
 829         uint32_t fifo_start_addr = buffer_start + 8;
 830         uint32_t fifo_end_addr = buffer_start + buffer_size;
 831
 832         uint32_t wp = fifo_start_addr;
 833         uint32_t rp = fifo_start_addr;
 834
 835         /* validate block_size is 2^n */
 836         assert(!block_size || !(block_size & (block_size - 1)));
 837
 838         retval = target_write_u32(target, wp_addr, wp);
 839         if (retval != ERROR_OK)
 840                 return retval;
 841         retval = target_write_u32(target, rp_addr, rp);
 842         if (retval != ERROR_OK)
 843                 return retval;
 844
 845         /* Start up algorithm on target and let it idle while writing the first chunk */
 846         retval = target_start_algorithm(target, num_mem_params, mem_params,
 847                         num_reg_params, reg_params,
 848                         entry_point,
 849                         exit_point,
 850                         arch_info);
 851
 852         if (retval != ERROR_OK) {
 853                 LOG_ERROR("error starting target flash write algorithm");
 854                 return retval;
 855         }
 856
 857         while (count > 0) {
 858
 859                 retval = target_read_u32(target, rp_addr, &rp);
 860                 if (retval != ERROR_OK) {
 861                         LOG_ERROR("failed to get read pointer");
 862                         break;
 863                 }
 864
 865                 LOG_DEBUG("count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32, count, wp, rp);
 866
 867                 if (rp == 0) {
 868                         LOG_ERROR("flash write algorithm aborted by target");
 869                         retval = ERROR_FLASH_OPERATION_FAILED;
 870                         break;
 871                 }
 872
 873                 if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
 874                         LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
 875                         break;
 876                 }
 877
 878                 /* Count the number of bytes available in the fifo without
 879                  * crossing the wrap around. Make sure to not fill it completely,
 880                  * because that would make wp == rp and that's the empty condition. */
 881                 uint32_t thisrun_bytes;
 882                 if (rp > wp)
 883                         thisrun_bytes = rp - wp - block_size;
 884                 else if (rp > fifo_start_addr)
 885                         thisrun_bytes = fifo_end_addr - wp;
 886                 else
 887                         thisrun_bytes = fifo_end_addr - wp - block_size;
 888
 889                 if (thisrun_bytes == 0) {
 890                         /* Throttle polling a bit if transfer is (much) faster than flash
 891                          * programming. The exact delay shouldn't matter as long as it's
 892                          * less than buffer size / flash speed. This is very unlikely to
 893                          * run when using high latency connections such as USB. */
 894                         alive_sleep(10);
 895
 896                         /* to stop an infinite loop on some targets check and increment a timeout
 897                          * this issue was observed on a stellaris using the new ICDI interface */
 898                         if (timeout++ >= 500) {
 899                                 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
 900                                 return ERROR_FLASH_OPERATION_FAILED;
 901                         }
 902                         continue;
 903                 }
 904
 905                 /* reset our timeout */
 906                 timeout = 0;
 907
 908                 /* Limit to the amount of data we actually want to write */
 909                 if (thisrun_bytes > count * block_size)
 910                         thisrun_bytes = count * block_size;
 911
 912                 /* Write data to fifo */
 913                 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
 914                 if (retval != ERROR_OK)
 915                         break;
 916
 917                 /* Update counters and wrap write pointer */
 918                 buffer += thisrun_bytes;
 919                 count -= thisrun_bytes / block_size;
 920                 wp += thisrun_bytes;
 921                 if (wp >= fifo_end_addr)
 922                         wp = fifo_start_addr;
 923
 924                 /* Store updated write pointer to target */
 925                 retval = target_write_u32(target, wp_addr, wp);
 926                 if (retval != ERROR_OK)
 927                         break;
 928         }
 929
 930         if (retval != ERROR_OK) {
 931                 /* abort flash write algorithm on target */
 932                 target_write_u32(target, wp_addr, 0);
 933         }
 934
 935         int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
 936                         num_reg_params, reg_params,
 937                         exit_point,
 938                         10000,
 939                         arch_info);
 940
 941         if (retval2 != ERROR_OK) {
 942                 LOG_ERROR("error waiting for target flash write algorithm");
 943                 retval = retval2;
 944         }
 945
 946         return retval;
 947 }
 948
 949 int target_read_memory(struct target *target,
 950                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 951 {
 952         if (!target_was_examined(target)) {
 953                 LOG_ERROR("Target not examined yet");
 954                 return ERROR_FAIL;
 955         }
 956         return target->type->read_memory(target, address, size, count, buffer);
 957 }
 958
 959 int target_read_phys_memory(struct target *target,
 960                 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 961 {
 962         if (!target_was_examined(target)) {
 963                 LOG_ERROR("Target not examined yet");
 964                 return ERROR_FAIL;
 965         }
 966         return target->type->read_phys_memory(target, address, size, count, buffer);
 967 }
 968
 969 int target_write_memory(struct target *target,
 970                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 971 {
 972         if (!target_was_examined(target)) {
 973                 LOG_ERROR("Target not examined yet");
 974                 return ERROR_FAIL;
 975         }
 976         return target->type->write_memory(target, address, size, count, buffer);
 977 }
 978
 979 int target_write_phys_memory(struct target *target,
 980                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
 981 {
 982         if (!target_was_examined(target)) {
 983                 LOG_ERROR("Target not examined yet");
 984                 return ERROR_FAIL;
 985         }
 986         return target->type->write_phys_memory(target, address, size, count, buffer);
 987 }
 988
 989 int target_add_breakpoint(struct target *target,
 990                 struct breakpoint *breakpoint)
 991 {
 992         if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
 993                 LOG_WARNING("target %s is not halted", target_name(target));
 994                 return ERROR_TARGET_NOT_HALTED;
 995         }
 996         return target->type->add_breakpoint(target, breakpoint);
 997 }
 998
 999 int target_add_context_breakpoint(struct target *target,
1000                 struct breakpoint *breakpoint)
1001 {
1002         if (target->state != TARGET_HALTED) {
1003                 LOG_WARNING("target %s is not halted", target_name(target));
1004                 return ERROR_TARGET_NOT_HALTED;
1005         }
1006         return target->type->add_context_breakpoint(target, breakpoint);
1007 }
1008
1009 int target_add_hybrid_breakpoint(struct target *target,
1010                 struct breakpoint *breakpoint)
1011 {
1012         if (target->state != TARGET_HALTED) {
1013                 LOG_WARNING("target %s is not halted", target_name(target));
1014                 return ERROR_TARGET_NOT_HALTED;
1015         }
1016         return target->type->add_hybrid_breakpoint(target, breakpoint);
1017 }
1018
1019 int target_remove_breakpoint(struct target *target,
1020                 struct breakpoint *breakpoint)
1021 {
1022         return target->type->remove_breakpoint(target, breakpoint);
1023 }
1024
1025 int target_add_watchpoint(struct target *target,
1026                 struct watchpoint *watchpoint)
1027 {
1028         if (target->state != TARGET_HALTED) {
1029                 LOG_WARNING("target %s is not halted", target_name(target));
1030                 return ERROR_TARGET_NOT_HALTED;
1031         }
1032         return target->type->add_watchpoint(target, watchpoint);
1033 }
1034 int target_remove_watchpoint(struct target *target,
1035                 struct watchpoint *watchpoint)
1036 {
1037         return target->type->remove_watchpoint(target, watchpoint);
1038 }
1039 int target_hit_watchpoint(struct target *target,
1040                 struct watchpoint **hit_watchpoint)
1041 {
1042         if (target->state != TARGET_HALTED) {
1043                 LOG_WARNING("target %s is not halted", target->cmd_name);
1044                 return ERROR_TARGET_NOT_HALTED;
1045         }
1046
1047         if (target->type->hit_watchpoint == NULL) {
1048                 /* For backward compatible, if hit_watchpoint is not implemented,
1049                  * return ERROR_FAIL such that gdb_server will not take the nonsense
1050                  * information. */
1051                 return ERROR_FAIL;
1052         }
1053
1054         return target->type->hit_watchpoint(target, hit_watchpoint);
1055 }
1056
1057 int target_get_gdb_reg_list(struct target *target,
1058                 struct reg **reg_list[], int *reg_list_size,
1059                 enum target_register_class reg_class)
1060 {
1061         return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1062 }
1063 int target_step(struct target *target,
1064                 int current, uint32_t address, int handle_breakpoints)
1065 {
1066         return target->type->step(target, current, address, handle_breakpoints);
1067 }
1068
1069 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1070 {
1071         if (target->state != TARGET_HALTED) {
1072                 LOG_WARNING("target %s is not halted", target->cmd_name);
1073                 return ERROR_TARGET_NOT_HALTED;
1074         }
1075         return target->type->get_gdb_fileio_info(target, fileio_info);
1076 }
1077
1078 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1079 {
1080         if (target->state != TARGET_HALTED) {
1081                 LOG_WARNING("target %s is not halted", target->cmd_name);
1082                 return ERROR_TARGET_NOT_HALTED;
1083         }
1084         return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1085 }
1086
1087 /**
1088  * Reset the @c examined flag for the given target.
1089  * Pure paranoia -- targets are zeroed on allocation.
1090  */
1091 static void target_reset_examined(struct target *target)
1092 {
1093         target->examined = false;
1094 }
1095
1096 static int err_read_phys_memory(struct target *target, uint32_t address,
1097                 uint32_t size, uint32_t count, uint8_t *buffer)
1098 {
1099         LOG_ERROR("Not implemented: %s", __func__);
1100         return ERROR_FAIL;
1101 }
1102
1103 static int err_write_phys_memory(struct target *target, uint32_t address,
1104                 uint32_t size, uint32_t count, const uint8_t *buffer)
1105 {
1106         LOG_ERROR("Not implemented: %s", __func__);
1107         return ERROR_FAIL;
1108 }
1109
1110 static int handle_target(void *priv);
1111
1112 static int target_init_one(struct command_context *cmd_ctx,
1113                 struct target *target)
1114 {
1115         target_reset_examined(target);
1116
1117         struct target_type *type = target->type;
1118         if (type->examine == NULL)
1119                 type->examine = default_examine;
1120
1121         if (type->check_reset == NULL)
1122                 type->check_reset = default_check_reset;
1123
1124         assert(type->init_target != NULL);
1125
1126         int retval = type->init_target(cmd_ctx, target);
1127         if (ERROR_OK != retval) {
1128                 LOG_ERROR("target '%s' init failed", target_name(target));
1129                 return retval;
1130         }
1131
1132         /* Sanity-check MMU support ... stub in what we must, to help
1133          * implement it in stages, but warn if we need to do so.
1134          */
1135         if (type->mmu) {
1136                 if (type->write_phys_memory == NULL) {
1137                         LOG_ERROR("type '%s' is missing write_phys_memory",
1138                                         type->name);
1139                         type->write_phys_memory = err_write_phys_memory;
1140                 }
1141                 if (type->read_phys_memory == NULL) {
1142                         LOG_ERROR("type '%s' is missing read_phys_memory",
1143                                         type->name);
1144                         type->read_phys_memory = err_read_phys_memory;
1145                 }
1146                 if (type->virt2phys == NULL) {
1147                         LOG_ERROR("type '%s' is missing virt2phys", type->name);
1148                         type->virt2phys = identity_virt2phys;
1149                 }
1150         } else {
1151                 /* Make sure no-MMU targets all behave the same:  make no
1152                  * distinction between physical and virtual addresses, and
1153                  * ensure that virt2phys() is always an identity mapping.
1154                  */
1155                 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1156                         LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1157
1158                 type->mmu = no_mmu;
1159                 type->write_phys_memory = type->write_memory;
1160                 type->read_phys_memory = type->read_memory;
1161                 type->virt2phys = identity_virt2phys;
1162         }
1163
1164         if (target->type->read_buffer == NULL)
1165                 target->type->read_buffer = target_read_buffer_default;
1166
1167         if (target->type->write_buffer == NULL)
1168                 target->type->write_buffer = target_write_buffer_default;
1169
1170         if (target->type->get_gdb_fileio_info == NULL)
1171                 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1172
1173         if (target->type->gdb_fileio_end == NULL)
1174                 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1175
1176         return ERROR_OK;
1177 }
1178
1179 static int target_init(struct command_context *cmd_ctx)
1180 {
1181         struct target *target;
1182         int retval;
1183
1184         for (target = all_targets; target; target = target->next) {
1185                 retval = target_init_one(cmd_ctx, target);
1186                 if (ERROR_OK != retval)
1187                         return retval;
1188         }
1189
1190         if (!all_targets)
1191                 return ERROR_OK;
1192
1193         retval = target_register_user_commands(cmd_ctx);
1194         if (ERROR_OK != retval)
1195                 return retval;
1196
1197         retval = target_register_timer_callback(&handle_target,
1198                         polling_interval, 1, cmd_ctx->interp);
1199         if (ERROR_OK != retval)
1200                 return retval;
1201
1202         return ERROR_OK;
1203 }
1204
1205 COMMAND_HANDLER(handle_target_init_command)
1206 {
1207         int retval;
1208
1209         if (CMD_ARGC != 0)
1210                 return ERROR_COMMAND_SYNTAX_ERROR;
1211
1212         static bool target_initialized;
1213         if (target_initialized) {
1214                 LOG_INFO("'target init' has already been called");
1215                 return ERROR_OK;
1216         }
1217         target_initialized = true;
1218
1219         retval = command_run_line(CMD_CTX, "init_targets");
1220         if (ERROR_OK != retval)
1221                 return retval;
1222
1223         retval = command_run_line(CMD_CTX, "init_board");
1224         if (ERROR_OK != retval)
1225                 return retval;
1226
1227         LOG_DEBUG("Initializing targets...");
1228         return target_init(CMD_CTX);
1229 }
1230
1231 int target_register_event_callback(int (*callback)(struct target *target,
1232                 enum target_event event, void *priv), void *priv)
1233 {
1234         struct target_event_callback **callbacks_p = &target_event_callbacks;
1235
1236         if (callback == NULL)
1237                 return ERROR_COMMAND_SYNTAX_ERROR;
1238
1239         if (*callbacks_p) {
1240                 while ((*callbacks_p)->next)
1241                         callbacks_p = &((*callbacks_p)->next);
1242                 callbacks_p = &((*callbacks_p)->next);
1243         }
1244
1245         (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1246         (*callbacks_p)->callback = callback;
1247         (*callbacks_p)->priv = priv;
1248         (*callbacks_p)->next = NULL;
1249
1250         return ERROR_OK;
1251 }
1252
1253 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1254 {
1255         struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1256         struct timeval now;
1257
1258         if (callback == NULL)
1259                 return ERROR_COMMAND_SYNTAX_ERROR;
1260
1261         if (*callbacks_p) {
1262                 while ((*callbacks_p)->next)
1263                         callbacks_p = &((*callbacks_p)->next);
1264                 callbacks_p = &((*callbacks_p)->next);
1265         }
1266
1267         (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1268         (*callbacks_p)->callback = callback;
1269         (*callbacks_p)->periodic = periodic;
1270         (*callbacks_p)->time_ms = time_ms;
1271
1272         gettimeofday(&now, NULL);
1273         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
1274         time_ms -= (time_ms % 1000);
1275         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
1276         if ((*callbacks_p)->when.tv_usec > 1000000) {
1277                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
1278                 (*callbacks_p)->when.tv_sec += 1;
1279         }
1280
1281         (*callbacks_p)->priv = priv;
1282         (*callbacks_p)->next = NULL;
1283
1284         return ERROR_OK;
1285 }
1286
1287 int target_unregister_event_callback(int (*callback)(struct target *target,
1288                 enum target_event event, void *priv), void *priv)
1289 {
1290         struct target_event_callback **p = &target_event_callbacks;
1291         struct target_event_callback *c = target_event_callbacks;
1292
1293         if (callback == NULL)
1294                 return ERROR_COMMAND_SYNTAX_ERROR;
1295
1296         while (c) {
1297                 struct target_event_callback *next = c->next;
1298                 if ((c->callback == callback) && (c->priv == priv)) {
1299                         *p = next;
1300                         free(c);
1301                         return ERROR_OK;
1302                 } else
1303                         p = &(c->next);
1304                 c = next;
1305         }
1306
1307         return ERROR_OK;
1308 }
1309
1310 static int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1311 {
1312         struct target_timer_callback **p = &target_timer_callbacks;
1313         struct target_timer_callback *c = target_timer_callbacks;
1314
1315         if (callback == NULL)
1316                 return ERROR_COMMAND_SYNTAX_ERROR;
1317
1318         while (c) {
1319                 struct target_timer_callback *next = c->next;
1320                 if ((c->callback == callback) && (c->priv == priv)) {
1321                         *p = next;
1322                         free(c);
1323                         return ERROR_OK;
1324                 } else
1325                         p = &(c->next);
1326                 c = next;
1327         }
1328
1329         return ERROR_OK;
1330 }
1331
1332 int target_call_event_callbacks(struct target *target, enum target_event event)
1333 {
1334         struct target_event_callback *callback = target_event_callbacks;
1335         struct target_event_callback *next_callback;
1336
1337         if (event == TARGET_EVENT_HALTED) {
1338                 /* execute early halted first */
1339                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1340         }
1341
1342         LOG_DEBUG("target event %i (%s)", event,
1343                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1344
1345         target_handle_event(target, event);
1346
1347         while (callback) {
1348                 next_callback = callback->next;
1349                 callback->callback(target, event, callback->priv);
1350                 callback = next_callback;
1351         }
1352
1353         return ERROR_OK;
1354 }
1355
1356 static int target_timer_callback_periodic_restart(
1357                 struct target_timer_callback *cb, struct timeval *now)
1358 {
1359         int time_ms = cb->time_ms;
1360         cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
1361         time_ms -= (time_ms % 1000);
1362         cb->when.tv_sec = now->tv_sec + time_ms / 1000;
1363         if (cb->when.tv_usec > 1000000) {
1364                 cb->when.tv_usec = cb->when.tv_usec - 1000000;
1365                 cb->when.tv_sec += 1;
1366         }
1367         return ERROR_OK;
1368 }
1369
1370 static int target_call_timer_callback(struct target_timer_callback *cb,
1371                 struct timeval *now)
1372 {
1373         cb->callback(cb->priv);
1374
1375         if (cb->periodic)
1376                 return target_timer_callback_periodic_restart(cb, now);
1377
1378         return target_unregister_timer_callback(cb->callback, cb->priv);
1379 }
1380
1381 static int target_call_timer_callbacks_check_time(int checktime)
1382 {
1383         keep_alive();
1384
1385         struct timeval now;
1386         gettimeofday(&now, NULL);
1387
1388         struct target_timer_callback *callback = target_timer_callbacks;
1389         while (callback) {
1390                 /* cleaning up may unregister and free this callback */
1391                 struct target_timer_callback *next_callback = callback->next;
1392
1393                 bool call_it = callback->callback &&
1394                         ((!checktime && callback->periodic) ||
1395                           now.tv_sec > callback->when.tv_sec ||
1396                          (now.tv_sec == callback->when.tv_sec &&
1397                           now.tv_usec >= callback->when.tv_usec));
1398
1399                 if (call_it) {
1400                         int retval = target_call_timer_callback(callback, &now);
1401                         if (retval != ERROR_OK)
1402                                 return retval;
1403                 }
1404
1405                 callback = next_callback;
1406         }
1407
1408         return ERROR_OK;
1409 }
1410
1411 int target_call_timer_callbacks(void)
1412 {
1413         return target_call_timer_callbacks_check_time(1);
1414 }
1415
1416 /* invoke periodic callbacks immediately */
1417 int target_call_timer_callbacks_now(void)
1418 {
1419         return target_call_timer_callbacks_check_time(0);
1420 }
1421
1422 /* Prints the working area layout for debug purposes */
1423 static void print_wa_layout(struct target *target)
1424 {
1425         struct working_area *c = target->working_areas;
1426
1427         while (c) {
1428                 LOG_DEBUG("%c%c 0x%08"PRIx32"-0x%08"PRIx32" (%"PRIu32" bytes)",
1429                         c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1430                         c->address, c->address + c->size - 1, c->size);
1431                 c = c->next;
1432         }
1433 }
1434
1435 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1436 static void target_split_working_area(struct working_area *area, uint32_t size)
1437 {
1438         assert(area->free); /* Shouldn't split an allocated area */
1439         assert(size <= area->size); /* Caller should guarantee this */
1440
1441         /* Split only if not already the right size */
1442         if (size < area->size) {
1443                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1444
1445                 if (new_wa == NULL)
1446                         return;
1447
1448                 new_wa->next = area->next;
1449                 new_wa->size = area->size - size;
1450                 new_wa->address = area->address + size;
1451                 new_wa->backup = NULL;
1452                 new_wa->user = NULL;
1453                 new_wa->free = true;
1454
1455                 area->next = new_wa;
1456                 area->size = size;
1457
1458                 /* If backup memory was allocated to this area, it has the wrong size
1459                  * now so free it and it will be reallocated if/when needed */
1460                 if (area->backup) {
1461                         free(area->backup);
1462                         area->backup = NULL;
1463                 }
1464         }
1465 }
1466
1467 /* Merge all adjacent free areas into one */
1468 static void target_merge_working_areas(struct target *target)
1469 {
1470         struct working_area *c = target->working_areas;
1471
1472         while (c && c->next) {
1473                 assert(c->next->address == c->address + c->size); /* This is an invariant */
1474
1475                 /* Find two adjacent free areas */
1476                 if (c->free && c->next->free) {
1477                         /* Merge the last into the first */
1478                         c->size += c->next->size;
1479
1480                         /* Remove the last */
1481                         struct working_area *to_be_freed = c->next;
1482                         c->next = c->next->next;
1483                         if (to_be_freed->backup)
1484                                 free(to_be_freed->backup);
1485                         free(to_be_freed);
1486
1487                         /* If backup memory was allocated to the remaining area, it's has
1488                          * the wrong size now */
1489                         if (c->backup) {
1490                                 free(c->backup);
1491                                 c->backup = NULL;
1492                         }
1493                 } else {
1494                         c = c->next;
1495                 }
1496         }
1497 }
1498
1499 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1500 {
1501         /* Reevaluate working area address based on MMU state*/
1502         if (target->working_areas == NULL) {
1503                 int retval;
1504                 int enabled;
1505
1506                 retval = target->type->mmu(target, &enabled);
1507                 if (retval != ERROR_OK)
1508                         return retval;
1509
1510                 if (!enabled) {
1511                         if (target->working_area_phys_spec) {
1512                                 LOG_DEBUG("MMU disabled, using physical "
1513                                         "address for working memory 0x%08"PRIx32,
1514                                         target->working_area_phys);
1515                                 target->working_area = target->working_area_phys;
1516                         } else {
1517                                 LOG_ERROR("No working memory available. "
1518                                         "Specify -work-area-phys to target.");
1519                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1520                         }
1521                 } else {
1522                         if (target->working_area_virt_spec) {
1523                                 LOG_DEBUG("MMU enabled, using virtual "
1524                                         "address for working memory 0x%08"PRIx32,
1525                                         target->working_area_virt);
1526                                 target->working_area = target->working_area_virt;
1527                         } else {
1528                                 LOG_ERROR("No working memory available. "
1529                                         "Specify -work-area-virt to target.");
1530                                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1531                         }
1532                 }
1533
1534                 /* Set up initial working area on first call */
1535                 struct working_area *new_wa = malloc(sizeof(*new_wa));
1536                 if (new_wa) {
1537                         new_wa->next = NULL;
1538                         new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1539                         new_wa->address = target->working_area;
1540                         new_wa->backup = NULL;
1541                         new_wa->user = NULL;
1542                         new_wa->free = true;
1543                 }
1544
1545                 target->working_areas = new_wa;
1546         }
1547
1548         /* only allocate multiples of 4 byte */
1549         if (size % 4)
1550                 size = (size + 3) & (~3UL);
1551
1552         struct working_area *c = target->working_areas;
1553
1554         /* Find the first large enough working area */
1555         while (c) {
1556                 if (c->free && c->size >= size)
1557                         break;
1558                 c = c->next;
1559         }
1560
1561         if (c == NULL)
1562                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1563
1564         /* Split the working area into the requested size */
1565         target_split_working_area(c, size);
1566
1567         LOG_DEBUG("allocated new working area of %"PRIu32" bytes at address 0x%08"PRIx32, size, c->address);
1568
1569         if (target->backup_working_area) {
1570                 if (c->backup == NULL) {
1571                         c->backup = malloc(c->size);
1572                         if (c->backup == NULL)
1573                                 return ERROR_FAIL;
1574                 }
1575
1576                 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1577                 if (retval != ERROR_OK)
1578                         return retval;
1579         }
1580
1581         /* mark as used, and return the new (reused) area */
1582         c->free = false;
1583         *area = c;
1584
1585         /* user pointer */
1586         c->user = area;
1587
1588         print_wa_layout(target);
1589
1590         return ERROR_OK;
1591 }
1592
1593 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1594 {
1595         int retval;
1596
1597         retval = target_alloc_working_area_try(target, size, area);
1598         if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1599                 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1600         return retval;
1601
1602 }
1603
1604 static int target_restore_working_area(struct target *target, struct working_area *area)
1605 {
1606         int retval = ERROR_OK;
1607
1608         if (target->backup_working_area && area->backup != NULL) {
1609                 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1610                 if (retval != ERROR_OK)
1611                         LOG_ERROR("failed to restore %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1612                                         area->size, area->address);
1613         }
1614
1615         return retval;
1616 }
1617
1618 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1619 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1620 {
1621         int retval = ERROR_OK;
1622
1623         if (area->free)
1624                 return retval;
1625
1626         if (restore) {
1627                 retval = target_restore_working_area(target, area);
1628                 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1629                 if (retval != ERROR_OK)
1630                         return retval;
1631         }
1632
1633         area->free = true;
1634
1635         LOG_DEBUG("freed %"PRIu32" bytes of working area at address 0x%08"PRIx32,
1636                         area->size, area->address);
1637
1638         /* mark user pointer invalid */
1639         /* TODO: Is this really safe? It points to some previous caller's memory.
1640          * How could we know that the area pointer is still in that place and not
1641          * some other vital data? What's the purpose of this, anyway? */
1642         *area->user = NULL;
1643         area->user = NULL;
1644
1645         target_merge_working_areas(target);
1646
1647         print_wa_layout(target);
1648
1649         return retval;
1650 }
1651
1652 int target_free_working_area(struct target *target, struct working_area *area)
1653 {
1654         return target_free_working_area_restore(target, area, 1);
1655 }
1656
1657 /* free resources and restore memory, if restoring memory fails,
1658  * free up resources anyway
1659  */
1660 static void target_free_all_working_areas_restore(struct target *target, int restore)
1661 {
1662         struct working_area *c = target->working_areas;
1663
1664         LOG_DEBUG("freeing all working areas");
1665
1666         /* Loop through all areas, restoring the allocated ones and marking them as free */
1667         while (c) {
1668                 if (!c->free) {
1669                         if (restore)
1670                                 target_restore_working_area(target, c);
1671                         c->free = true;
1672                         *c->user = NULL; /* Same as above */
1673                         c->user = NULL;
1674                 }
1675                 c = c->next;
1676         }
1677
1678         /* Run a merge pass to combine all areas into one */
1679         target_merge_working_areas(target);
1680
1681         print_wa_layout(target);
1682 }
1683
1684 void target_free_all_working_areas(struct target *target)
1685 {
1686         target_free_all_working_areas_restore(target, 1);
1687 }
1688
1689 /* Find the largest number of bytes that can be allocated */
1690 uint32_t target_get_working_area_avail(struct target *target)
1691 {
1692         struct working_area *c = target->working_areas;
1693         uint32_t max_size = 0;
1694
1695         if (c == NULL)
1696                 return target->working_area_size;
1697
1698         while (c) {
1699                 if (c->free && max_size < c->size)
1700                         max_size = c->size;
1701
1702                 c = c->next;
1703         }
1704
1705         return max_size;
1706 }
1707
1708 int target_arch_state(struct target *target)
1709 {
1710         int retval;
1711         if (target == NULL) {
1712                 LOG_USER("No target has been configured");
1713                 return ERROR_OK;
1714         }
1715
1716         LOG_USER("target state: %s", target_state_name(target));
1717
1718         if (target->state != TARGET_HALTED)
1719                 return ERROR_OK;
1720
1721         retval = target->type->arch_state(target);
1722         return retval;
1723 }
1724
1725 static int target_get_gdb_fileio_info_default(struct target *target,
1726                 struct gdb_fileio_info *fileio_info)
1727 {
1728         /* If target does not support semi-hosting function, target
1729            has no need to provide .get_gdb_fileio_info callback.
1730            It just return ERROR_FAIL and gdb_server will return "Txx"
1731            as target halted every time.  */
1732         return ERROR_FAIL;
1733 }
1734
1735 static int target_gdb_fileio_end_default(struct target *target,
1736                 int retcode, int fileio_errno, bool ctrl_c)
1737 {
1738         return ERROR_OK;
1739 }
1740
1741 /* Single aligned words are guaranteed to use 16 or 32 bit access
1742  * mode respectively, otherwise data is handled as quickly as
1743  * possible
1744  */
1745 int target_write_buffer(struct target *target, uint32_t address, uint32_t size, const uint8_t *buffer)
1746 {
1747         LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
1748                         (int)size, (unsigned)address);
1749
1750         if (!target_was_examined(target)) {
1751                 LOG_ERROR("Target not examined yet");
1752                 return ERROR_FAIL;
1753         }
1754
1755         if (size == 0)
1756                 return ERROR_OK;
1757
1758         if ((address + size - 1) < address) {
1759                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1760                 LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
1761                                   (unsigned)address,
1762                                   (unsigned)size);
1763                 return ERROR_FAIL;
1764         }
1765
1766         return target->type->write_buffer(target, address, size, buffer);
1767 }
1768
1769 static int target_write_buffer_default(struct target *target, uint32_t address, uint32_t count, const uint8_t *buffer)
1770 {
1771         uint32_t size;
1772
1773         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
1774          * will have something to do with the size we leave to it. */
1775         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
1776                 if (address & size) {
1777                         int retval = target_write_memory(target, address, size, 1, buffer);
1778                         if (retval != ERROR_OK)
1779                                 return retval;
1780                         address += size;
1781                         count -= size;
1782                         buffer += size;
1783                 }
1784         }
1785
1786         /* Write the data with as large access size as possible. */
1787         for (; size > 0; size /= 2) {
1788                 uint32_t aligned = count - count % size;
1789                 if (aligned > 0) {
1790                         int retval = target_write_memory(target, address, size, aligned / size, buffer);
1791                         if (retval != ERROR_OK)
1792                                 return retval;
1793                         address += aligned;
1794                         count -= aligned;
1795                         buffer += aligned;
1796                 }
1797         }
1798
1799         return ERROR_OK;
1800 }
1801
1802 /* Single aligned words are guaranteed to use 16 or 32 bit access
1803  * mode respectively, otherwise data is handled as quickly as
1804  * possible
1805  */
1806 int target_read_buffer(struct target *target, uint32_t address, uint32_t size, uint8_t *buffer)
1807 {
1808         LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
1809                           (int)size, (unsigned)address);
1810
1811         if (!target_was_examined(target)) {
1812                 LOG_ERROR("Target not examined yet");
1813                 return ERROR_FAIL;
1814         }
1815
1816         if (size == 0)
1817                 return ERROR_OK;
1818
1819         if ((address + size - 1) < address) {
1820                 /* GDB can request this when e.g. PC is 0xfffffffc*/
1821                 LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
1822                                   address,
1823                                   size);
1824                 return ERROR_FAIL;
1825         }
1826
1827         return target->type->read_buffer(target, address, size, buffer);
1828 }
1829
1830 static int target_read_buffer_default(struct target *target, uint32_t address, uint32_t count, uint8_t *buffer)
1831 {
1832         uint32_t size;
1833
1834         /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
1835          * will have something to do with the size we leave to it. */
1836         for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
1837                 if (address & size) {
1838                         int retval = target_read_memory(target, address, size, 1, buffer);
1839                         if (retval != ERROR_OK)
1840                                 return retval;
1841                         address += size;
1842                         count -= size;
1843                         buffer += size;
1844                 }
1845         }
1846
1847         /* Read the data with as large access size as possible. */
1848         for (; size > 0; size /= 2) {
1849                 uint32_t aligned = count - count % size;
1850                 if (aligned > 0) {
1851                         int retval = target_read_memory(target, address, size, aligned / size, buffer);
1852                         if (retval != ERROR_OK)
1853                                 return retval;
1854                         address += aligned;
1855                         count -= aligned;
1856                         buffer += aligned;
1857                 }
1858         }
1859
1860         return ERROR_OK;
1861 }
1862
1863 int target_checksum_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* crc)
1864 {
1865         uint8_t *buffer;
1866         int retval;
1867         uint32_t i;
1868         uint32_t checksum = 0;
1869         if (!target_was_examined(target)) {
1870                 LOG_ERROR("Target not examined yet");
1871                 return ERROR_FAIL;
1872         }
1873
1874         retval = target->type->checksum_memory(target, address, size, &checksum);
1875         if (retval != ERROR_OK) {
1876                 buffer = malloc(size);
1877                 if (buffer == NULL) {
1878                         LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
1879                         return ERROR_COMMAND_SYNTAX_ERROR;
1880                 }
1881                 retval = target_read_buffer(target, address, size, buffer);
1882                 if (retval != ERROR_OK) {
1883                         free(buffer);
1884                         return retval;
1885                 }
1886
1887                 /* convert to target endianness */
1888                 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
1889                         uint32_t target_data;
1890                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
1891                         target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
1892                 }
1893
1894                 retval = image_calculate_checksum(buffer, size, &checksum);
1895                 free(buffer);
1896         }
1897
1898         *crc = checksum;
1899
1900         return retval;
1901 }
1902
1903 int target_blank_check_memory(struct target *target, uint32_t address, uint32_t size, uint32_t* blank)
1904 {
1905         int retval;
1906         if (!target_was_examined(target)) {
1907                 LOG_ERROR("Target not examined yet");
1908                 return ERROR_FAIL;
1909         }
1910
1911         if (target->type->blank_check_memory == 0)
1912                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1913
1914         retval = target->type->blank_check_memory(target, address, size, blank);
1915
1916         return retval;
1917 }
1918
1919 int target_read_u32(struct target *target, uint32_t address, uint32_t *value)
1920 {
1921         uint8_t value_buf[4];
1922         if (!target_was_examined(target)) {
1923                 LOG_ERROR("Target not examined yet");
1924                 return ERROR_FAIL;
1925         }
1926
1927         int retval = target_read_memory(target, address, 4, 1, value_buf);
1928
1929         if (retval == ERROR_OK) {
1930                 *value = target_buffer_get_u32(target, value_buf);
1931                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1932                                   address,
1933                                   *value);
1934         } else {
1935                 *value = 0x0;
1936                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1937                                   address);
1938         }
1939
1940         return retval;
1941 }
1942
1943 int target_read_u16(struct target *target, uint32_t address, uint16_t *value)
1944 {
1945         uint8_t value_buf[2];
1946         if (!target_was_examined(target)) {
1947                 LOG_ERROR("Target not examined yet");
1948                 return ERROR_FAIL;
1949         }
1950
1951         int retval = target_read_memory(target, address, 2, 1, value_buf);
1952
1953         if (retval == ERROR_OK) {
1954                 *value = target_buffer_get_u16(target, value_buf);
1955                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
1956                                   address,
1957                                   *value);
1958         } else {
1959                 *value = 0x0;
1960                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1961                                   address);
1962         }
1963
1964         return retval;
1965 }
1966
1967 int target_read_u8(struct target *target, uint32_t address, uint8_t *value)
1968 {
1969         int retval = target_read_memory(target, address, 1, 1, value);
1970         if (!target_was_examined(target)) {
1971                 LOG_ERROR("Target not examined yet");
1972                 return ERROR_FAIL;
1973         }
1974
1975         if (retval == ERROR_OK) {
1976                 LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
1977                                   address,
1978                                   *value);
1979         } else {
1980                 *value = 0x0;
1981                 LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
1982                                   address);
1983         }
1984
1985         return retval;
1986 }
1987
1988 int target_write_u32(struct target *target, uint32_t address, uint32_t value)
1989 {
1990         int retval;
1991         uint8_t value_buf[4];
1992         if (!target_was_examined(target)) {
1993                 LOG_ERROR("Target not examined yet");
1994                 return ERROR_FAIL;
1995         }
1996
1997         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
1998                           address,
1999                           value);
2000
2001         target_buffer_set_u32(target, value_buf, value);
2002         retval = target_write_memory(target, address, 4, 1, value_buf);
2003         if (retval != ERROR_OK)
2004                 LOG_DEBUG("failed: %i", retval);
2005
2006         return retval;
2007 }
2008
2009 int target_write_u16(struct target *target, uint32_t address, uint16_t value)
2010 {
2011         int retval;
2012         uint8_t value_buf[2];
2013         if (!target_was_examined(target)) {
2014                 LOG_ERROR("Target not examined yet");
2015                 return ERROR_FAIL;
2016         }
2017
2018         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
2019                           address,
2020                           value);
2021
2022         target_buffer_set_u16(target, value_buf, value);
2023         retval = target_write_memory(target, address, 2, 1, value_buf);
2024         if (retval != ERROR_OK)
2025                 LOG_DEBUG("failed: %i", retval);
2026
2027         return retval;
2028 }
2029
2030 int target_write_u8(struct target *target, uint32_t address, uint8_t value)
2031 {
2032         int retval;
2033         if (!target_was_examined(target)) {
2034                 LOG_ERROR("Target not examined yet");
2035                 return ERROR_FAIL;
2036         }
2037
2038         LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
2039                           address, value);
2040
2041         retval = target_write_memory(target, address, 1, 1, &value);
2042         if (retval != ERROR_OK)
2043                 LOG_DEBUG("failed: %i", retval);
2044
2045         return retval;
2046 }
2047
2048 static int find_target(struct command_context *cmd_ctx, const char *name)
2049 {
2050         struct target *target = get_target(name);
2051         if (target == NULL) {
2052                 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2053                 return ERROR_FAIL;
2054         }
2055         if (!target->tap->enabled) {
2056                 LOG_USER("Target: TAP %s is disabled, "
2057                          "can't be the current target\n",
2058                          target->tap->dotted_name);
2059                 return ERROR_FAIL;
2060         }
2061
2062         cmd_ctx->current_target = target->target_number;
2063         return ERROR_OK;
2064 }
2065
2066
2067 COMMAND_HANDLER(handle_targets_command)
2068 {
2069         int retval = ERROR_OK;
2070         if (CMD_ARGC == 1) {
2071                 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2072                 if (retval == ERROR_OK) {
2073                         /* we're done! */
2074                         return retval;
2075                 }
2076         }
2077
2078         struct target *target = all_targets;
2079         command_print(CMD_CTX, "    TargetName         Type       Endian TapName            State       ");
2080         command_print(CMD_CTX, "--  ------------------ ---------- ------ ------------------ ------------");
2081         while (target) {
2082                 const char *state;
2083                 char marker = ' ';
2084
2085                 if (target->tap->enabled)
2086                         state = target_state_name(target);
2087                 else
2088                         state = "tap-disabled";
2089
2090                 if (CMD_CTX->current_target == target->target_number)
2091                         marker = '*';
2092
2093                 /* keep columns lined up to match the headers above */
2094                 command_print(CMD_CTX,
2095                                 "%2d%c %-18s %-10s %-6s %-18s %s",
2096                                 target->target_number,
2097                                 marker,
2098                                 target_name(target),
2099                                 target_type_name(target),
2100                                 Jim_Nvp_value2name_simple(nvp_target_endian,
2101                                         target->endianness)->name,
2102                                 target->tap->dotted_name,
2103                                 state);
2104                 target = target->next;
2105         }
2106
2107         return retval;
2108 }
2109
2110 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2111
2112 static int powerDropout;
2113 static int srstAsserted;
2114
2115 static int runPowerRestore;
2116 static int runPowerDropout;
2117 static int runSrstAsserted;
2118 static int runSrstDeasserted;
2119
2120 static int sense_handler(void)
2121 {
2122         static int prevSrstAsserted;
2123         static int prevPowerdropout;
2124
2125         int retval = jtag_power_dropout(&powerDropout);
2126         if (retval != ERROR_OK)
2127                 return retval;
2128
2129         int powerRestored;
2130         powerRestored = prevPowerdropout && !powerDropout;
2131         if (powerRestored)
2132                 runPowerRestore = 1;
2133
2134         long long current = timeval_ms();
2135         static long long lastPower;
2136         int waitMore = lastPower + 2000 > current;
2137         if (powerDropout && !waitMore) {
2138                 runPowerDropout = 1;
2139                 lastPower = current;
2140         }
2141
2142         retval = jtag_srst_asserted(&srstAsserted);
2143         if (retval != ERROR_OK)
2144                 return retval;
2145
2146         int srstDeasserted;
2147         srstDeasserted = prevSrstAsserted && !srstAsserted;
2148
2149         static long long lastSrst;
2150         waitMore = lastSrst + 2000 > current;
2151         if (srstDeasserted && !waitMore) {
2152                 runSrstDeasserted = 1;
2153                 lastSrst = current;
2154         }
2155
2156         if (!prevSrstAsserted && srstAsserted)
2157                 runSrstAsserted = 1;
2158
2159         prevSrstAsserted = srstAsserted;
2160         prevPowerdropout = powerDropout;
2161
2162         if (srstDeasserted || powerRestored) {
2163                 /* Other than logging the event we can't do anything here.
2164                  * Issuing a reset is a particularly bad idea as we might
2165                  * be inside a reset already.
2166                  */
2167         }
2168
2169         return ERROR_OK;
2170 }
2171
2172 /* process target state changes */
2173 static int handle_target(void *priv)
2174 {
2175         Jim_Interp *interp = (Jim_Interp *)priv;
2176         int retval = ERROR_OK;
2177
2178         if (!is_jtag_poll_safe()) {
2179                 /* polling is disabled currently */
2180                 return ERROR_OK;
2181         }
2182
2183         /* we do not want to recurse here... */
2184         static int recursive;
2185         if (!recursive) {
2186                 recursive = 1;
2187                 sense_handler();
2188                 /* danger! running these procedures can trigger srst assertions and power dropouts.
2189                  * We need to avoid an infinite loop/recursion here and we do that by
2190                  * clearing the flags after running these events.
2191                  */
2192                 int did_something = 0;
2193                 if (runSrstAsserted) {
2194                         LOG_INFO("srst asserted detected, running srst_asserted proc.");
2195                         Jim_Eval(interp, "srst_asserted");
2196                         did_something = 1;
2197                 }
2198                 if (runSrstDeasserted) {
2199                         Jim_Eval(interp, "srst_deasserted");
2200                         did_something = 1;
2201                 }
2202                 if (runPowerDropout) {
2203                         LOG_INFO("Power dropout detected, running power_dropout proc.");
2204                         Jim_Eval(interp, "power_dropout");
2205                         did_something = 1;
2206                 }
2207                 if (runPowerRestore) {
2208                         Jim_Eval(interp, "power_restore");
2209                         did_something = 1;
2210                 }
2211
2212                 if (did_something) {
2213                         /* clear detect flags */
2214                         sense_handler();
2215                 }
2216
2217                 /* clear action flags */
2218
2219                 runSrstAsserted = 0;
2220                 runSrstDeasserted = 0;
2221                 runPowerRestore = 0;
2222                 runPowerDropout = 0;
2223
2224                 recursive = 0;
2225         }
2226
2227         /* Poll targets for state changes unless that's globally disabled.
2228          * Skip targets that are currently disabled.
2229          */
2230         for (struct target *target = all_targets;
2231                         is_jtag_poll_safe() && target;
2232                         target = target->next) {
2233                 if (!target->tap->enabled)
2234                         continue;
2235
2236                 if (target->backoff.times > target->backoff.count) {
2237                         /* do not poll this time as we failed previously */
2238                         target->backoff.count++;
2239                         continue;
2240                 }
2241                 target->backoff.count = 0;
2242
2243                 /* only poll target if we've got power and srst isn't asserted */
2244                 if (!powerDropout && !srstAsserted) {
2245                         /* polling may fail silently until the target has been examined */
2246                         retval = target_poll(target);
2247                         if (retval != ERROR_OK) {
2248                                 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2249                                 if (target->backoff.times * polling_interval < 5000) {
2250                                         target->backoff.times *= 2;
2251                                         target->backoff.times++;
2252                                 }
2253                                 LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms",
2254                                                 target_name(target),
2255                                                 target->backoff.times * polling_interval);
2256
2257                                 /* Tell GDB to halt the debugger. This allows the user to
2258                                  * run monitor commands to handle the situation.
2259                                  */
2260                                 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2261                                 return retval;
2262                         }
2263                         /* Since we succeeded, we reset backoff count */
2264                         if (target->backoff.times > 0)
2265                                 LOG_USER("Polling target %s succeeded again", target_name(target));
2266                         target->backoff.times = 0;
2267                 }
2268         }
2269
2270         return retval;
2271 }
2272
2273 COMMAND_HANDLER(handle_reg_command)
2274 {
2275         struct target *target;
2276         struct reg *reg = NULL;
2277         unsigned count = 0;
2278         char *value;
2279
2280         LOG_DEBUG("-");
2281
2282         target = get_current_target(CMD_CTX);
2283
2284         /* list all available registers for the current target */
2285         if (CMD_ARGC == 0) {
2286                 struct reg_cache *cache = target->reg_cache;
2287
2288                 count = 0;
2289                 while (cache) {
2290                         unsigned i;
2291
2292                         command_print(CMD_CTX, "===== %s", cache->name);
2293
2294                         for (i = 0, reg = cache->reg_list;
2295                                         i < cache->num_regs;
2296                                         i++, reg++, count++) {
2297                                 /* only print cached values if they are valid */
2298                                 if (reg->valid) {
2299                                         value = buf_to_str(reg->value,
2300                                                         reg->size, 16);
2301                                         command_print(CMD_CTX,
2302                                                         "(%i) %s (/%" PRIu32 "): 0x%s%s",
2303                                                         count, reg->name,
2304                                                         reg->size, value,
2305                                                         reg->dirty
2306                                                                 ? " (dirty)"
2307                                                                 : "");
2308                                         free(value);
2309                                 } else {
2310                                         command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2311                                                           count, reg->name,
2312                                                           reg->size) ;
2313                                 }
2314                         }
2315                         cache = cache->next;
2316                 }
2317
2318                 return ERROR_OK;
2319         }
2320
2321         /* access a single register by its ordinal number */
2322         if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2323                 unsigned num;
2324                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2325
2326                 struct reg_cache *cache = target->reg_cache;
2327                 count = 0;
2328                 while (cache) {
2329                         unsigned i;
2330                         for (i = 0; i < cache->num_regs; i++) {
2331                                 if (count++ == num) {
2332                                         reg = &cache->reg_list[i];
2333                                         break;
2334                                 }
2335                         }
2336                         if (reg)
2337                                 break;
2338                         cache = cache->next;
2339                 }
2340
2341                 if (!reg) {
2342                         command_print(CMD_CTX, "%i is out of bounds, the current target "
2343                                         "has only %i registers (0 - %i)", num, count, count - 1);
2344                         return ERROR_OK;
2345                 }
2346         } else {
2347                 /* access a single register by its name */
2348                 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2349
2350                 if (!reg) {
2351                         command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2352                         return ERROR_OK;
2353                 }
2354         }
2355
2356         assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2357
2358         /* display a register */
2359         if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2360                         && (CMD_ARGV[1][0] <= '9')))) {
2361                 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2362                         reg->valid = 0;
2363
2364                 if (reg->valid == 0)
2365                         reg->type->get(reg);
2366                 value = buf_to_str(reg->value, reg->size, 16);
2367                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2368                 free(value);
2369                 return ERROR_OK;
2370         }
2371
2372         /* set register value */
2373         if (CMD_ARGC == 2) {
2374                 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2375                 if (buf == NULL)
2376                         return ERROR_FAIL;
2377                 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2378
2379                 reg->type->set(reg, buf);
2380
2381                 value = buf_to_str(reg->value, reg->size, 16);
2382                 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2383                 free(value);
2384
2385                 free(buf);
2386
2387                 return ERROR_OK;
2388         }
2389
2390         return ERROR_COMMAND_SYNTAX_ERROR;
2391 }
2392
2393 COMMAND_HANDLER(handle_poll_command)
2394 {
2395         int retval = ERROR_OK;
2396         struct target *target = get_current_target(CMD_CTX);
2397
2398         if (CMD_ARGC == 0) {
2399                 command_print(CMD_CTX, "background polling: %s",
2400                                 jtag_poll_get_enabled() ? "on" : "off");
2401                 command_print(CMD_CTX, "TAP: %s (%s)",
2402                                 target->tap->dotted_name,
2403                                 target->tap->enabled ? "enabled" : "disabled");
2404                 if (!target->tap->enabled)
2405                         return ERROR_OK;
2406                 retval = target_poll(target);
2407                 if (retval != ERROR_OK)
2408                         return retval;
2409                 retval = target_arch_state(target);
2410                 if (retval != ERROR_OK)
2411                         return retval;
2412         } else if (CMD_ARGC == 1) {
2413                 bool enable;
2414                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2415                 jtag_poll_set_enabled(enable);
2416         } else
2417                 return ERROR_COMMAND_SYNTAX_ERROR;
2418
2419         return retval;
2420 }
2421
2422 COMMAND_HANDLER(handle_wait_halt_command)
2423 {
2424         if (CMD_ARGC > 1)
2425                 return ERROR_COMMAND_SYNTAX_ERROR;
2426
2427         unsigned ms = DEFAULT_HALT_TIMEOUT;
2428         if (1 == CMD_ARGC) {
2429                 int retval = parse_uint(CMD_ARGV[0], &ms);
2430                 if (ERROR_OK != retval)
2431                         return ERROR_COMMAND_SYNTAX_ERROR;
2432         }
2433
2434         struct target *target = get_current_target(CMD_CTX);
2435         return target_wait_state(target, TARGET_HALTED, ms);
2436 }
2437
2438 /* wait for target state to change. The trick here is to have a low
2439  * latency for short waits and not to suck up all the CPU time
2440  * on longer waits.
2441  *
2442  * After 500ms, keep_alive() is invoked
2443  */
2444 int target_wait_state(struct target *target, enum target_state state, int ms)
2445 {
2446         int retval;
2447         long long then = 0, cur;
2448         int once = 1;
2449
2450         for (;;) {
2451                 retval = target_poll(target);
2452                 if (retval != ERROR_OK)
2453                         return retval;
2454                 if (target->state == state)
2455                         break;
2456                 cur = timeval_ms();
2457                 if (once) {
2458                         once = 0;
2459                         then = timeval_ms();
2460                         LOG_DEBUG("waiting for target %s...",
2461                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2462                 }
2463
2464                 if (cur-then > 500)
2465                         keep_alive();
2466
2467                 if ((cur-then) > ms) {
2468                         LOG_ERROR("timed out while waiting for target %s",
2469                                 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2470                         return ERROR_FAIL;
2471                 }
2472         }
2473
2474         return ERROR_OK;
2475 }
2476
2477 COMMAND_HANDLER(handle_halt_command)
2478 {
2479         LOG_DEBUG("-");
2480
2481         struct target *target = get_current_target(CMD_CTX);
2482         int retval = target_halt(target);
2483         if (ERROR_OK != retval)
2484                 return retval;
2485
2486         if (CMD_ARGC == 1) {
2487                 unsigned wait_local;
2488                 retval = parse_uint(CMD_ARGV[0], &wait_local);
2489                 if (ERROR_OK != retval)
2490                         return ERROR_COMMAND_SYNTAX_ERROR;
2491                 if (!wait_local)
2492                         return ERROR_OK;
2493         }
2494
2495         return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2496 }
2497
2498 COMMAND_HANDLER(handle_soft_reset_halt_command)
2499 {
2500         struct target *target = get_current_target(CMD_CTX);
2501
2502         LOG_USER("requesting target halt and executing a soft reset");
2503
2504         target_soft_reset_halt(target);
2505
2506         return ERROR_OK;
2507 }
2508
2509 COMMAND_HANDLER(handle_reset_command)
2510 {
2511         if (CMD_ARGC > 1)
2512                 return ERROR_COMMAND_SYNTAX_ERROR;
2513
2514         enum target_reset_mode reset_mode = RESET_RUN;
2515         if (CMD_ARGC == 1) {
2516                 const Jim_Nvp *n;
2517                 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2518                 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2519                         return ERROR_COMMAND_SYNTAX_ERROR;
2520                 reset_mode = n->value;
2521         }
2522
2523         /* reset *all* targets */
2524         return target_process_reset(CMD_CTX, reset_mode);
2525 }
2526
2527
2528 COMMAND_HANDLER(handle_resume_command)
2529 {
2530         int current = 1;
2531         if (CMD_ARGC > 1)
2532                 return ERROR_COMMAND_SYNTAX_ERROR;
2533
2534         struct target *target = get_current_target(CMD_CTX);
2535
2536         /* with no CMD_ARGV, resume from current pc, addr = 0,
2537          * with one arguments, addr = CMD_ARGV[0],
2538          * handle breakpoints, not debugging */
2539         uint32_t addr = 0;
2540         if (CMD_ARGC == 1) {
2541                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2542                 current = 0;
2543         }
2544
2545         return target_resume(target, current, addr, 1, 0);
2546 }
2547
2548 COMMAND_HANDLER(handle_step_command)
2549 {
2550         if (CMD_ARGC > 1)
2551                 return ERROR_COMMAND_SYNTAX_ERROR;
2552
2553         LOG_DEBUG("-");
2554
2555         /* with no CMD_ARGV, step from current pc, addr = 0,
2556          * with one argument addr = CMD_ARGV[0],
2557          * handle breakpoints, debugging */
2558         uint32_t addr = 0;
2559         int current_pc = 1;
2560         if (CMD_ARGC == 1) {
2561                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
2562                 current_pc = 0;
2563         }
2564
2565         struct target *target = get_current_target(CMD_CTX);
2566
2567         return target->type->step(target, current_pc, addr, 1);
2568 }
2569
2570 static void handle_md_output(struct command_context *cmd_ctx,
2571                 struct target *target, uint32_t address, unsigned size,
2572                 unsigned count, const uint8_t *buffer)
2573 {
2574         const unsigned line_bytecnt = 32;
2575         unsigned line_modulo = line_bytecnt / size;
2576
2577         char output[line_bytecnt * 4 + 1];
2578         unsigned output_len = 0;
2579
2580         const char *value_fmt;
2581         switch (size) {
2582         case 4:
2583                 value_fmt = "%8.8x ";
2584                 break;
2585         case 2:
2586                 value_fmt = "%4.4x ";
2587                 break;
2588         case 1:
2589                 value_fmt = "%2.2x ";
2590                 break;
2591         default:
2592                 /* "can't happen", caller checked */
2593                 LOG_ERROR("invalid memory read size: %u", size);
2594                 return;
2595         }
2596
2597         for (unsigned i = 0; i < count; i++) {
2598                 if (i % line_modulo == 0) {
2599                         output_len += snprintf(output + output_len,
2600                                         sizeof(output) - output_len,
2601                                         "0x%8.8x: ",
2602                                         (unsigned)(address + (i*size)));
2603                 }
2604
2605                 uint32_t value = 0;
2606                 const uint8_t *value_ptr = buffer + i * size;
2607                 switch (size) {
2608                 case 4:
2609                         value = target_buffer_get_u32(target, value_ptr);
2610                         break;
2611                 case 2:
2612                         value = target_buffer_get_u16(target, value_ptr);
2613                         break;
2614                 case 1:
2615                         value = *value_ptr;
2616                 }
2617                 output_len += snprintf(output + output_len,
2618                                 sizeof(output) - output_len,
2619                                 value_fmt, value);
2620
2621                 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
2622                         command_print(cmd_ctx, "%s", output);
2623                         output_len = 0;
2624                 }
2625         }
2626 }
2627
2628 COMMAND_HANDLER(handle_md_command)
2629 {
2630         if (CMD_ARGC < 1)
2631                 return ERROR_COMMAND_SYNTAX_ERROR;
2632
2633         unsigned size = 0;
2634         switch (CMD_NAME[2]) {
2635         case 'w':
2636                 size = 4;
2637                 break;
2638         case 'h':
2639                 size = 2;
2640                 break;
2641         case 'b':
2642                 size = 1;
2643                 break;
2644         default:
2645                 return ERROR_COMMAND_SYNTAX_ERROR;
2646         }
2647
2648         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2649         int (*fn)(struct target *target,
2650                         uint32_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
2651         if (physical) {
2652                 CMD_ARGC--;
2653                 CMD_ARGV++;
2654                 fn = target_read_phys_memory;
2655         } else
2656                 fn = target_read_memory;
2657         if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
2658                 return ERROR_COMMAND_SYNTAX_ERROR;
2659
2660         uint32_t address;
2661         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2662
2663         unsigned count = 1;
2664         if (CMD_ARGC == 2)
2665                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
2666
2667         uint8_t *buffer = calloc(count, size);
2668
2669         struct target *target = get_current_target(CMD_CTX);
2670         int retval = fn(target, address, size, count, buffer);
2671         if (ERROR_OK == retval)
2672                 handle_md_output(CMD_CTX, target, address, size, count, buffer);
2673
2674         free(buffer);
2675
2676         return retval;
2677 }
2678
2679 typedef int (*target_write_fn)(struct target *target,
2680                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
2681
2682 static int target_write_memory_fast(struct target *target,
2683                 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
2684 {
2685         return target_write_buffer(target, address, size * count, buffer);
2686 }
2687
2688 static int target_fill_mem(struct target *target,
2689                 uint32_t address,
2690                 target_write_fn fn,
2691                 unsigned data_size,
2692                 /* value */
2693                 uint32_t b,
2694                 /* count */
2695                 unsigned c)
2696 {
2697         /* We have to write in reasonably large chunks to be able
2698          * to fill large memory areas with any sane speed */
2699         const unsigned chunk_size = 16384;
2700         uint8_t *target_buf = malloc(chunk_size * data_size);
2701         if (target_buf == NULL) {
2702                 LOG_ERROR("Out of memory");
2703                 return ERROR_FAIL;
2704         }
2705
2706         for (unsigned i = 0; i < chunk_size; i++) {
2707                 switch (data_size) {
2708                 case 4:
2709                         target_buffer_set_u32(target, target_buf + i * data_size, b);
2710                         break;
2711                 case 2:
2712                         target_buffer_set_u16(target, target_buf + i * data_size, b);
2713                         break;
2714                 case 1:
2715                         target_buffer_set_u8(target, target_buf + i * data_size, b);
2716                         break;
2717                 default:
2718                         exit(-1);
2719                 }
2720         }
2721
2722         int retval = ERROR_OK;
2723
2724         for (unsigned x = 0; x < c; x += chunk_size) {
2725                 unsigned current;
2726                 current = c - x;
2727                 if (current > chunk_size)
2728                         current = chunk_size;
2729                 retval = fn(target, address + x * data_size, data_size, current, target_buf);
2730                 if (retval != ERROR_OK)
2731                         break;
2732                 /* avoid GDB timeouts */
2733                 keep_alive();
2734         }
2735         free(target_buf);
2736
2737         return retval;
2738 }
2739
2740
2741 COMMAND_HANDLER(handle_mw_command)
2742 {
2743         if (CMD_ARGC < 2)
2744                 return ERROR_COMMAND_SYNTAX_ERROR;
2745         bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
2746         target_write_fn fn;
2747         if (physical) {
2748                 CMD_ARGC--;
2749                 CMD_ARGV++;
2750                 fn = target_write_phys_memory;
2751         } else
2752                 fn = target_write_memory_fast;
2753         if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
2754                 return ERROR_COMMAND_SYNTAX_ERROR;
2755
2756         uint32_t address;
2757         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
2758
2759         uint32_t value;
2760         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
2761
2762         unsigned count = 1;
2763         if (CMD_ARGC == 3)
2764                 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
2765
2766         struct target *target = get_current_target(CMD_CTX);
2767         unsigned wordsize;
2768         switch (CMD_NAME[2]) {
2769                 case 'w':
2770                         wordsize = 4;
2771                         break;
2772                 case 'h':
2773                         wordsize = 2;
2774                         break;
2775                 case 'b':
2776                         wordsize = 1;
2777                         break;
2778                 default:
2779                         return ERROR_COMMAND_SYNTAX_ERROR;
2780         }
2781
2782         return target_fill_mem(target, address, fn, wordsize, value, count);
2783 }
2784
2785 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
2786                 uint32_t *min_address, uint32_t *max_address)
2787 {
2788         if (CMD_ARGC < 1 || CMD_ARGC > 5)
2789                 return ERROR_COMMAND_SYNTAX_ERROR;
2790
2791         /* a base address isn't always necessary,
2792          * default to 0x0 (i.e. don't relocate) */
2793         if (CMD_ARGC >= 2) {
2794                 uint32_t addr;
2795                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2796                 image->base_address = addr;
2797                 image->base_address_set = 1;
2798         } else
2799                 image->base_address_set = 0;
2800
2801         image->start_address_set = 0;
2802
2803         if (CMD_ARGC >= 4)
2804                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], *min_address);
2805         if (CMD_ARGC == 5) {
2806                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], *max_address);
2807                 /* use size (given) to find max (required) */
2808                 *max_address += *min_address;
2809         }
2810
2811         if (*min_address > *max_address)
2812                 return ERROR_COMMAND_SYNTAX_ERROR;
2813
2814         return ERROR_OK;
2815 }
2816
2817 COMMAND_HANDLER(handle_load_image_command)
2818 {
2819         uint8_t *buffer;
2820         size_t buf_cnt;
2821         uint32_t image_size;
2822         uint32_t min_address = 0;
2823         uint32_t max_address = 0xffffffff;
2824         int i;
2825         struct image image;
2826
2827         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
2828                         &image, &min_address, &max_address);
2829         if (ERROR_OK != retval)
2830                 return retval;
2831
2832         struct target *target = get_current_target(CMD_CTX);
2833
2834         struct duration bench;
2835         duration_start(&bench);
2836
2837         if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
2838                 return ERROR_OK;
2839
2840         image_size = 0x0;
2841         retval = ERROR_OK;
2842         for (i = 0; i < image.num_sections; i++) {
2843                 buffer = malloc(image.sections[i].size);
2844                 if (buffer == NULL) {
2845                         command_print(CMD_CTX,
2846                                                   "error allocating buffer for section (%d bytes)",
2847                                                   (int)(image.sections[i].size));
2848                         break;
2849                 }
2850
2851                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
2852                 if (retval != ERROR_OK) {
2853                         free(buffer);
2854                         break;
2855                 }
2856
2857                 uint32_t offset = 0;
2858                 uint32_t length = buf_cnt;
2859
2860                 /* DANGER!!! beware of unsigned comparision here!!! */
2861
2862                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
2863                                 (image.sections[i].base_address < max_address)) {
2864
2865                         if (image.sections[i].base_address < min_address) {
2866                                 /* clip addresses below */
2867                                 offset += min_address-image.sections[i].base_address;
2868                                 length -= offset;
2869                         }
2870
2871                         if (image.sections[i].base_address + buf_cnt > max_address)
2872                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
2873
2874                         retval = target_write_buffer(target,
2875                                         image.sections[i].base_address + offset, length, buffer + offset);
2876                         if (retval != ERROR_OK) {
2877                                 free(buffer);
2878                                 break;
2879                         }
2880                         image_size += length;
2881                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8" PRIx32 "",
2882                                         (unsigned int)length,
2883                                         image.sections[i].base_address + offset);
2884                 }
2885
2886                 free(buffer);
2887         }
2888
2889         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2890                 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
2891                                 "in %fs (%0.3f KiB/s)", image_size,
2892                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
2893         }
2894
2895         image_close(&image);
2896
2897         return retval;
2898
2899 }
2900
2901 COMMAND_HANDLER(handle_dump_image_command)
2902 {
2903         struct fileio fileio;
2904         uint8_t *buffer;
2905         int retval, retvaltemp;
2906         uint32_t address, size;
2907         struct duration bench;
2908         struct target *target = get_current_target(CMD_CTX);
2909
2910         if (CMD_ARGC != 3)
2911                 return ERROR_COMMAND_SYNTAX_ERROR;
2912
2913         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], address);
2914         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], size);
2915
2916         uint32_t buf_size = (size > 4096) ? 4096 : size;
2917         buffer = malloc(buf_size);
2918         if (!buffer)
2919                 return ERROR_FAIL;
2920
2921         retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
2922         if (retval != ERROR_OK) {
2923                 free(buffer);
2924                 return retval;
2925         }
2926
2927         duration_start(&bench);
2928
2929         while (size > 0) {
2930                 size_t size_written;
2931                 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
2932                 retval = target_read_buffer(target, address, this_run_size, buffer);
2933                 if (retval != ERROR_OK)
2934                         break;
2935
2936                 retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
2937                 if (retval != ERROR_OK)
2938                         break;
2939
2940                 size -= this_run_size;
2941                 address += this_run_size;
2942         }
2943
2944         free(buffer);
2945
2946         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
2947                 int filesize;
2948                 retval = fileio_size(&fileio, &filesize);
2949                 if (retval != ERROR_OK)
2950                         return retval;
2951                 command_print(CMD_CTX,
2952                                 "dumped %ld bytes in %fs (%0.3f KiB/s)", (long)filesize,
2953                                 duration_elapsed(&bench), duration_kbps(&bench, filesize));
2954         }
2955
2956         retvaltemp = fileio_close(&fileio);
2957         if (retvaltemp != ERROR_OK)
2958                 return retvaltemp;
2959
2960         return retval;
2961 }
2962
2963 static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
2964 {
2965         uint8_t *buffer;
2966         size_t buf_cnt;
2967         uint32_t image_size;
2968         int i;
2969         int retval;
2970         uint32_t checksum = 0;
2971         uint32_t mem_checksum = 0;
2972
2973         struct image image;
2974
2975         struct target *target = get_current_target(CMD_CTX);
2976
2977         if (CMD_ARGC < 1)
2978                 return ERROR_COMMAND_SYNTAX_ERROR;
2979
2980         if (!target) {
2981                 LOG_ERROR("no target selected");
2982                 return ERROR_FAIL;
2983         }
2984
2985         struct duration bench;
2986         duration_start(&bench);
2987
2988         if (CMD_ARGC >= 2) {
2989                 uint32_t addr;
2990                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], addr);
2991                 image.base_address = addr;
2992                 image.base_address_set = 1;
2993         } else {
2994                 image.base_address_set = 0;
2995                 image.base_address = 0x0;
2996         }
2997
2998         image.start_address_set = 0;
2999
3000         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3001         if (retval != ERROR_OK)
3002                 return retval;
3003
3004         image_size = 0x0;
3005         int diffs = 0;
3006         retval = ERROR_OK;
3007         for (i = 0; i < image.num_sections; i++) {
3008                 buffer = malloc(image.sections[i].size);
3009                 if (buffer == NULL) {
3010                         command_print(CMD_CTX,
3011                                         "error allocating buffer for section (%d bytes)",
3012                                         (int)(image.sections[i].size));
3013                         break;
3014                 }
3015                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3016                 if (retval != ERROR_OK) {
3017                         free(buffer);
3018                         break;
3019                 }
3020
3021                 if (verify) {
3022                         /* calculate checksum of image */
3023                         retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3024                         if (retval != ERROR_OK) {
3025                                 free(buffer);
3026                                 break;
3027                         }
3028
3029                         retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3030                         if (retval != ERROR_OK) {
3031                                 free(buffer);
3032                                 break;
3033                         }
3034
3035                         if (checksum != mem_checksum) {
3036                                 /* failed crc checksum, fall back to a binary compare */
3037                                 uint8_t *data;
3038
3039                                 if (diffs == 0)
3040                                         LOG_ERROR("checksum mismatch - attempting binary compare");
3041
3042                                 data = (uint8_t *)malloc(buf_cnt);
3043
3044                                 /* Can we use 32bit word accesses? */
3045                                 int size = 1;
3046                                 int count = buf_cnt;
3047                                 if ((count % 4) == 0) {
3048                                         size *= 4;
3049                                         count /= 4;
3050                                 }
3051                                 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3052                                 if (retval == ERROR_OK) {
3053                                         uint32_t t;
3054                                         for (t = 0; t < buf_cnt; t++) {
3055                                                 if (data[t] != buffer[t]) {
3056                                                         command_print(CMD_CTX,
3057                                                                                   "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3058                                                                                   diffs,
3059                                                                                   (unsigned)(t + image.sections[i].base_address),
3060                                                                                   data[t],
3061                                                                                   buffer[t]);
3062                                                         if (diffs++ >= 127) {
3063                                                                 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3064                                                                 free(data);
3065                                                                 free(buffer);
3066                                                                 goto done;
3067                                                         }
3068                                                 }
3069                                                 keep_alive();
3070                                         }
3071                                 }
3072                                 free(data);
3073                         }
3074                 } else {
3075                         command_print(CMD_CTX, "address 0x%08" PRIx32 " length 0x%08zx",
3076                                                   image.sections[i].base_address,
3077                                                   buf_cnt);
3078                 }
3079
3080                 free(buffer);
3081                 image_size += buf_cnt;
3082         }
3083         if (diffs > 0)
3084                 command_print(CMD_CTX, "No more differences found.");
3085 done:
3086         if (diffs > 0)
3087                 retval = ERROR_FAIL;
3088         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3089                 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3090                                 "in %fs (%0.3f KiB/s)", image_size,
3091                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3092         }
3093
3094         image_close(&image);
3095
3096         return retval;
3097 }
3098
3099 COMMAND_HANDLER(handle_verify_image_command)
3100 {
3101         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
3102 }
3103
3104 COMMAND_HANDLER(handle_test_image_command)
3105 {
3106         return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
3107 }
3108
3109 static int handle_bp_command_list(struct command_context *cmd_ctx)
3110 {
3111         struct target *target = get_current_target(cmd_ctx);
3112         struct breakpoint *breakpoint = target->breakpoints;
3113         while (breakpoint) {
3114                 if (breakpoint->type == BKPT_SOFT) {
3115                         char *buf = buf_to_str(breakpoint->orig_instr,
3116                                         breakpoint->length, 16);
3117                         command_print(cmd_ctx, "IVA breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
3118                                         breakpoint->address,
3119                                         breakpoint->length,
3120                                         breakpoint->set, buf);
3121                         free(buf);
3122                 } else {
3123                         if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3124                                 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3125                                                         breakpoint->asid,
3126                                                         breakpoint->length, breakpoint->set);
3127                         else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3128                                 command_print(cmd_ctx, "Hybrid breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3129                                                         breakpoint->address,
3130                                                         breakpoint->length, breakpoint->set);
3131                                 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3132                                                         breakpoint->asid);
3133                         } else
3134                                 command_print(cmd_ctx, "Breakpoint(IVA): 0x%8.8" PRIx32 ", 0x%x, %i",
3135                                                         breakpoint->address,
3136                                                         breakpoint->length, breakpoint->set);
3137                 }
3138
3139                 breakpoint = breakpoint->next;
3140         }
3141         return ERROR_OK;
3142 }
3143
3144 static int handle_bp_command_set(struct command_context *cmd_ctx,
3145                 uint32_t addr, uint32_t asid, uint32_t length, int hw)
3146 {
3147         struct target *target = get_current_target(cmd_ctx);
3148
3149         if (asid == 0) {
3150                 int retval = breakpoint_add(target, addr, length, hw);
3151                 if (ERROR_OK == retval)
3152                         command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
3153                 else {
3154                         LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3155                         return retval;
3156                 }
3157         } else if (addr == 0) {
3158                 int retval = context_breakpoint_add(target, asid, length, hw);
3159                 if (ERROR_OK == retval)
3160                         command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3161                 else {
3162                         LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3163                         return retval;
3164                 }
3165         } else {
3166                 int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3167                 if (ERROR_OK == retval)
3168                         command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3169                 else {
3170                         LOG_ERROR("Failure setting breakpoint, the same address is already used");
3171                         return retval;
3172                 }
3173         }
3174         return ERROR_OK;
3175 }
3176
3177 COMMAND_HANDLER(handle_bp_command)
3178 {
3179         uint32_t addr;
3180         uint32_t asid;
3181         uint32_t length;
3182         int hw = BKPT_SOFT;
3183
3184         switch (CMD_ARGC) {
3185                 case 0:
3186                         return handle_bp_command_list(CMD_CTX);
3187
3188                 case 2:
3189                         asid = 0;
3190                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3191                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3192                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3193
3194                 case 3:
3195                         if (strcmp(CMD_ARGV[2], "hw") == 0) {
3196                                 hw = BKPT_HARD;
3197                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3198
3199                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3200
3201                                 asid = 0;
3202                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3203                         } else if (strcmp(CMD_ARGV[2], "hw_ctx") == 0) {
3204                                 hw = BKPT_HARD;
3205                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], asid);
3206                                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3207                                 addr = 0;
3208                                 return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3209                         }
3210
3211                 case 4:
3212                         hw = BKPT_HARD;
3213                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3214                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], asid);
3215                         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], length);
3216                         return handle_bp_command_set(CMD_CTX, addr, asid, length, hw);
3217
3218                 default:
3219                         return ERROR_COMMAND_SYNTAX_ERROR;
3220         }
3221 }
3222
3223 COMMAND_HANDLER(handle_rbp_command)
3224 {
3225         if (CMD_ARGC != 1)
3226                 return ERROR_COMMAND_SYNTAX_ERROR;
3227
3228         uint32_t addr;
3229         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3230
3231         struct target *target = get_current_target(CMD_CTX);
3232         breakpoint_remove(target, addr);
3233
3234         return ERROR_OK;
3235 }
3236
3237 COMMAND_HANDLER(handle_wp_command)
3238 {
3239         struct target *target = get_current_target(CMD_CTX);
3240
3241         if (CMD_ARGC == 0) {
3242                 struct watchpoint *watchpoint = target->watchpoints;
3243
3244                 while (watchpoint) {
3245                         command_print(CMD_CTX, "address: 0x%8.8" PRIx32
3246                                         ", len: 0x%8.8" PRIx32
3247                                         ", r/w/a: %i, value: 0x%8.8" PRIx32
3248                                         ", mask: 0x%8.8" PRIx32,
3249                                         watchpoint->address,
3250                                         watchpoint->length,
3251                                         (int)watchpoint->rw,
3252                                         watchpoint->value,
3253                                         watchpoint->mask);
3254                         watchpoint = watchpoint->next;
3255                 }
3256                 return ERROR_OK;
3257         }
3258
3259         enum watchpoint_rw type = WPT_ACCESS;
3260         uint32_t addr = 0;
3261         uint32_t length = 0;
3262         uint32_t data_value = 0x0;
3263         uint32_t data_mask = 0xffffffff;
3264
3265         switch (CMD_ARGC) {
3266         case 5:
3267                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[4], data_mask);
3268                 /* fall through */
3269         case 4:
3270                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[3], data_value);
3271                 /* fall through */
3272         case 3:
3273                 switch (CMD_ARGV[2][0]) {
3274                 case 'r':
3275                         type = WPT_READ;
3276                         break;
3277                 case 'w':
3278                         type = WPT_WRITE;
3279                         break;
3280                 case 'a':
3281                         type = WPT_ACCESS;
3282                         break;
3283                 default:
3284                         LOG_ERROR("invalid watchpoint mode ('%c')", CMD_ARGV[2][0]);
3285                         return ERROR_COMMAND_SYNTAX_ERROR;
3286                 }
3287                 /* fall through */
3288         case 2:
3289                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
3290                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3291                 break;
3292
3293         default:
3294                 return ERROR_COMMAND_SYNTAX_ERROR;
3295         }
3296
3297         int retval = watchpoint_add(target, addr, length, type,
3298                         data_value, data_mask);
3299         if (ERROR_OK != retval)
3300                 LOG_ERROR("Failure setting watchpoints");
3301
3302         return retval;
3303 }
3304
3305 COMMAND_HANDLER(handle_rwp_command)
3306 {
3307         if (CMD_ARGC != 1)
3308                 return ERROR_COMMAND_SYNTAX_ERROR;
3309
3310         uint32_t addr;
3311         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], addr);
3312
3313         struct target *target = get_current_target(CMD_CTX);
3314         watchpoint_remove(target, addr);
3315
3316         return ERROR_OK;
3317 }
3318
3319 /**
3320  * Translate a virtual address to a physical address.
3321  *
3322  * The low-level target implementation must have logged a detailed error
3323  * which is forwarded to telnet/GDB session.
3324  */
3325 COMMAND_HANDLER(handle_virt2phys_command)
3326 {
3327         if (CMD_ARGC != 1)
3328                 return ERROR_COMMAND_SYNTAX_ERROR;
3329
3330         uint32_t va;
3331         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], va);
3332         uint32_t pa;
3333
3334         struct target *target = get_current_target(CMD_CTX);
3335         int retval = target->type->virt2phys(target, va, &pa);
3336         if (retval == ERROR_OK)
3337                 command_print(CMD_CTX, "Physical address 0x%08" PRIx32 "", pa);
3338
3339         return retval;
3340 }
3341
3342 static void writeData(FILE *f, const void *data, size_t len)
3343 {
3344         size_t written = fwrite(data, 1, len, f);
3345         if (written != len)
3346                 LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
3347 }
3348
3349 static void writeLong(FILE *f, int l)
3350 {
3351         int i;
3352         for (i = 0; i < 4; i++) {
3353                 char c = (l >> (i*8))&0xff;
3354                 writeData(f, &c, 1);
3355         }
3356
3357 }
3358
3359 static void writeString(FILE *f, char *s)
3360 {
3361         writeData(f, s, strlen(s));
3362 }
3363
3364 /* Dump a gmon.out histogram file. */
3365 static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
3366 {
3367         uint32_t i;
3368         FILE *f = fopen(filename, "w");
3369         if (f == NULL)
3370                 return;
3371         writeString(f, "gmon");
3372         writeLong(f, 0x00000001); /* Version */
3373         writeLong(f, 0); /* padding */
3374         writeLong(f, 0); /* padding */
3375         writeLong(f, 0); /* padding */
3376
3377         uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
3378         writeData(f, &zero, 1);
3379
3380         /* figure out bucket size */
3381         uint32_t min = samples[0];
3382         uint32_t max = samples[0];
3383         for (i = 0; i < sampleNum; i++) {
3384                 if (min > samples[i])
3385                         min = samples[i];
3386                 if (max < samples[i])
3387                         max = samples[i];
3388         }
3389
3390         /* max should be (largest sample + 1)
3391          * Refer to binutils/gprof/hist.c (find_histogram_for_pc) */
3392         max++;
3393
3394         int addressSpace = max - min;
3395         assert(addressSpace >= 2);
3396
3397         /* FIXME: What is the reasonable number of buckets?
3398          * The profiling result will be more accurate if there are enough buckets. */
3399         static const uint32_t maxBuckets = 128 * 1024; /* maximum buckets. */
3400         uint32_t numBuckets = addressSpace;
3401         if (numBuckets > maxBuckets)
3402                 numBuckets = maxBuckets;
3403         int *buckets = malloc(sizeof(int) * numBuckets);
3404         if (buckets == NULL) {
3405                 fclose(f);
3406                 return;
3407         }
3408         memset(buckets, 0, sizeof(int) * numBuckets);
3409         for (i = 0; i < sampleNum; i++) {
3410                 uint32_t address = samples[i];
3411                 long long a = address - min;
3412                 long long b = numBuckets;
3413                 long long c = addressSpace;
3414                 int index_t = (a * b) / c; /* danger!!!! int32 overflows */
3415                 buckets[index_t]++;
3416         }
3417
3418         /* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
3419         writeLong(f, min);                      /* low_pc */
3420         writeLong(f, max);                      /* high_pc */
3421         writeLong(f, numBuckets);       /* # of buckets */
3422         writeLong(f, 100);                      /* KLUDGE! We lie, ca. 100Hz best case. */
3423         writeString(f, "seconds");
3424         for (i = 0; i < (15-strlen("seconds")); i++)
3425                 writeData(f, &zero, 1);
3426         writeString(f, "s");
3427
3428         /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
3429
3430         char *data = malloc(2 * numBuckets);
3431         if (data != NULL) {
3432                 for (i = 0; i < numBuckets; i++) {
3433                         int val;
3434                         val = buckets[i];
3435                         if (val > 65535)
3436                                 val = 65535;
3437                         data[i * 2] = val&0xff;
3438                         data[i * 2 + 1] = (val >> 8) & 0xff;
3439                 }
3440                 free(buckets);
3441                 writeData(f, data, numBuckets * 2);
3442                 free(data);
3443         } else
3444                 free(buckets);
3445
3446         fclose(f);
3447 }
3448
3449 /* profiling samples the CPU PC as quickly as OpenOCD is able,
3450  * which will be used as a random sampling of PC */
3451 COMMAND_HANDLER(handle_profile_command)
3452 {
3453         struct target *target = get_current_target(CMD_CTX);
3454         struct timeval timeout, now;
3455
3456         gettimeofday(&timeout, NULL);
3457         if (CMD_ARGC != 2)
3458                 return ERROR_COMMAND_SYNTAX_ERROR;
3459         unsigned offset;
3460         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], offset);
3461
3462         timeval_add_time(&timeout, offset, 0);
3463
3464         /**
3465          * @todo: Some cores let us sample the PC without the
3466          * annoying halt/resume step; for example, ARMv7 PCSR.
3467          * Provide a way to use that more efficient mechanism.
3468          */
3469
3470         command_print(CMD_CTX, "Starting profiling. Halting and resuming the target as often as we can...");
3471
3472         static const int maxSample = 10000;
3473         uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
3474         if (samples == NULL)
3475                 return ERROR_OK;
3476
3477         int numSamples = 0;
3478         /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
3479         struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
3480
3481         int retval = ERROR_OK;
3482         for (;;) {
3483                 target_poll(target);
3484                 if (target->state == TARGET_HALTED) {
3485                         uint32_t t = *((uint32_t *)reg->value);
3486                         samples[numSamples++] = t;
3487                         /* current pc, addr = 0, do not handle breakpoints, not debugging */
3488                         retval = target_resume(target, 1, 0, 0, 0);
3489                         target_poll(target);
3490                         alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
3491                 } else if (target->state == TARGET_RUNNING) {
3492                         /* We want to quickly sample the PC. */
3493                         retval = target_halt(target);
3494                         if (retval != ERROR_OK) {
3495                                 free(samples);
3496                                 return retval;
3497                         }
3498                 } else {
3499                         command_print(CMD_CTX, "Target not halted or running");
3500                         retval = ERROR_OK;
3501                         break;
3502                 }
3503                 if (retval != ERROR_OK)
3504                         break;
3505
3506                 gettimeofday(&now, NULL);
3507                 if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec)
3508                                 && (now.tv_usec >= timeout.tv_usec))) {
3509                         command_print(CMD_CTX, "Profiling completed. %d samples.", numSamples);
3510                         retval = target_poll(target);
3511                         if (retval != ERROR_OK) {
3512                                 free(samples);
3513                                 return retval;
3514                         }
3515                         if (target->state == TARGET_HALTED) {
3516                                 /* current pc, addr = 0, do not handle
3517                                  * breakpoints, not debugging */
3518                                 target_resume(target, 1, 0, 0, 0);
3519                         }
3520                         retval = target_poll(target);
3521                         if (retval != ERROR_OK) {
3522                                 free(samples);
3523                                 return retval;
3524                         }
3525                         writeGmon(samples, numSamples, CMD_ARGV[1]);
3526                         command_print(CMD_CTX, "Wrote %s", CMD_ARGV[1]);
3527                         break;
3528                 }
3529         }
3530         free(samples);
3531
3532         return retval;
3533 }
3534
3535 static int new_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t val)
3536 {
3537         char *namebuf;
3538         Jim_Obj *nameObjPtr, *valObjPtr;
3539         int result;
3540
3541         namebuf = alloc_printf("%s(%d)", varname, idx);
3542         if (!namebuf)
3543                 return JIM_ERR;
3544
3545         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3546         valObjPtr = Jim_NewIntObj(interp, val);
3547         if (!nameObjPtr || !valObjPtr) {
3548                 free(namebuf);
3549                 return JIM_ERR;
3550         }
3551
3552         Jim_IncrRefCount(nameObjPtr);
3553         Jim_IncrRefCount(valObjPtr);
3554         result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3555         Jim_DecrRefCount(interp, nameObjPtr);
3556         Jim_DecrRefCount(interp, valObjPtr);
3557         free(namebuf);
3558         /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
3559         return result;
3560 }
3561
3562 static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3563 {
3564         struct command_context *context;
3565         struct target *target;
3566
3567         context = current_command_context(interp);
3568         assert(context != NULL);
3569
3570         target = get_current_target(context);
3571         if (target == NULL) {
3572                 LOG_ERROR("mem2array: no current target");
3573                 return JIM_ERR;
3574         }
3575
3576         return target_mem2array(interp, target, argc - 1, argv + 1);
3577 }
3578
3579 static int target_mem2array(Jim_Interp *interp, struct target *target, int argc, Jim_Obj *const *argv)
3580 {
3581         long l;
3582         uint32_t width;
3583         int len;
3584         uint32_t addr;
3585         uint32_t count;
3586         uint32_t v;
3587         const char *varname;
3588         int  n, e, retval;
3589         uint32_t i;
3590
3591         /* argv[1] = name of array to receive the data
3592          * argv[2] = desired width
3593          * argv[3] = memory address
3594          * argv[4] = count of times to read
3595          */
3596         if (argc != 4) {
3597                 Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
3598                 return JIM_ERR;
3599         }
3600         varname = Jim_GetString(argv[0], &len);
3601         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3602
3603         e = Jim_GetLong(interp, argv[1], &l);
3604         width = l;
3605         if (e != JIM_OK)
3606                 return e;
3607
3608         e = Jim_GetLong(interp, argv[2], &l);
3609         addr = l;
3610         if (e != JIM_OK)
3611                 return e;
3612         e = Jim_GetLong(interp, argv[3], &l);
3613         len = l;
3614         if (e != JIM_OK)
3615                 return e;
3616         switch (width) {
3617                 case 8:
3618                         width = 1;
3619                         break;
3620                 case 16:
3621                         width = 2;
3622                         break;
3623                 case 32:
3624                         width = 4;
3625                         break;
3626                 default:
3627                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3628                         Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
3629                         return JIM_ERR;
3630         }
3631         if (len == 0) {
3632                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3633                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
3634                 return JIM_ERR;
3635         }
3636         if ((addr + (len * width)) < addr) {
3637                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3638                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
3639                 return JIM_ERR;
3640         }
3641         /* absurd transfer size? */
3642         if (len > 65536) {
3643                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3644                 Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
3645                 return JIM_ERR;
3646         }
3647
3648         if ((width == 1) ||
3649                 ((width == 2) && ((addr & 1) == 0)) ||
3650                 ((width == 4) && ((addr & 3) == 0))) {
3651                 /* all is well */
3652         } else {
3653                 char buf[100];
3654                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3655                 sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
3656                                 addr,
3657                                 width);
3658                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3659                 return JIM_ERR;
3660         }
3661
3662         /* Transfer loop */
3663
3664         /* index counter */
3665         n = 0;
3666
3667         size_t buffersize = 4096;
3668         uint8_t *buffer = malloc(buffersize);
3669         if (buffer == NULL)
3670                 return JIM_ERR;
3671
3672         /* assume ok */
3673         e = JIM_OK;
3674         while (len) {
3675                 /* Slurp... in buffer size chunks */
3676
3677                 count = len; /* in objects.. */
3678                 if (count > (buffersize / width))
3679                         count = (buffersize / width);
3680
3681                 retval = target_read_memory(target, addr, width, count, buffer);
3682                 if (retval != ERROR_OK) {
3683                         /* BOO !*/
3684                         LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
3685                                           (unsigned int)addr,
3686                                           (int)width,
3687                                           (int)count);
3688                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3689                         Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
3690                         e = JIM_ERR;
3691                         break;
3692                 } else {
3693                         v = 0; /* shut up gcc */
3694                         for (i = 0; i < count ; i++, n++) {
3695                                 switch (width) {
3696                                         case 4:
3697                                                 v = target_buffer_get_u32(target, &buffer[i*width]);
3698                                                 break;
3699                                         case 2:
3700                                                 v = target_buffer_get_u16(target, &buffer[i*width]);
3701                                                 break;
3702                                         case 1:
3703                                                 v = buffer[i] & 0x0ff;
3704                                                 break;
3705                                 }
3706                                 new_int_array_element(interp, varname, n, v);
3707                         }
3708                         len -= count;
3709                 }
3710         }
3711
3712         free(buffer);
3713
3714         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3715
3716         return e;
3717 }
3718
3719 static int get_int_array_element(Jim_Interp *interp, const char *varname, int idx, uint32_t *val)
3720 {
3721         char *namebuf;
3722         Jim_Obj *nameObjPtr, *valObjPtr;
3723         int result;
3724         long l;
3725
3726         namebuf = alloc_printf("%s(%d)", varname, idx);
3727         if (!namebuf)
3728                 return JIM_ERR;
3729
3730         nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
3731         if (!nameObjPtr) {
3732                 free(namebuf);
3733                 return JIM_ERR;
3734         }
3735
3736         Jim_IncrRefCount(nameObjPtr);
3737         valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
3738         Jim_DecrRefCount(interp, nameObjPtr);
3739         free(namebuf);
3740         if (valObjPtr == NULL)
3741                 return JIM_ERR;
3742
3743         result = Jim_GetLong(interp, valObjPtr, &l);
3744         /* printf("%s(%d) => 0%08x\n", varname, idx, val); */
3745         *val = l;
3746         return result;
3747 }
3748
3749 static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
3750 {
3751         struct command_context *context;
3752         struct target *target;
3753
3754         context = current_command_context(interp);
3755         assert(context != NULL);
3756
3757         target = get_current_target(context);
3758         if (target == NULL) {
3759                 LOG_ERROR("array2mem: no current target");
3760                 return JIM_ERR;
3761         }
3762
3763         return target_array2mem(interp, target, argc-1, argv + 1);
3764 }
3765
3766 static int target_array2mem(Jim_Interp *interp, struct target *target,
3767                 int argc, Jim_Obj *const *argv)
3768 {
3769         long l;
3770         uint32_t width;
3771         int len;
3772         uint32_t addr;
3773         uint32_t count;
3774         uint32_t v;
3775         const char *varname;
3776         int  n, e, retval;
3777         uint32_t i;
3778
3779         /* argv[1] = name of array to get the data
3780          * argv[2] = desired width
3781          * argv[3] = memory address
3782          * argv[4] = count to write
3783          */
3784         if (argc != 4) {
3785                 Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems");
3786                 return JIM_ERR;
3787         }
3788         varname = Jim_GetString(argv[0], &len);
3789         /* given "foo" get space for worse case "foo(%d)" .. add 20 */
3790
3791         e = Jim_GetLong(interp, argv[1], &l);
3792         width = l;
3793         if (e != JIM_OK)
3794                 return e;
3795
3796         e = Jim_GetLong(interp, argv[2], &l);
3797         addr = l;
3798         if (e != JIM_OK)
3799                 return e;
3800         e = Jim_GetLong(interp, argv[3], &l);
3801         len = l;
3802         if (e != JIM_OK)
3803                 return e;
3804         switch (width) {
3805                 case 8:
3806                         width = 1;
3807                         break;
3808                 case 16:
3809                         width = 2;
3810                         break;
3811                 case 32:
3812                         width = 4;
3813                         break;
3814                 default:
3815                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3816                         Jim_AppendStrings(interp, Jim_GetResult(interp),
3817                                         "Invalid width param, must be 8/16/32", NULL);
3818                         return JIM_ERR;
3819         }
3820         if (len == 0) {
3821                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3822                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3823                                 "array2mem: zero width read?", NULL);
3824                 return JIM_ERR;
3825         }
3826         if ((addr + (len * width)) < addr) {
3827                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3828                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3829                                 "array2mem: addr + len - wraps to zero?", NULL);
3830                 return JIM_ERR;
3831         }
3832         /* absurd transfer size? */
3833         if (len > 65536) {
3834                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3835                 Jim_AppendStrings(interp, Jim_GetResult(interp),
3836                                 "array2mem: absurd > 64K item request", NULL);
3837                 return JIM_ERR;
3838         }
3839
3840         if ((width == 1) ||
3841                 ((width == 2) && ((addr & 1) == 0)) ||
3842                 ((width == 4) && ((addr & 3) == 0))) {
3843                 /* all is well */
3844         } else {
3845                 char buf[100];
3846                 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3847                 sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
3848                                 (unsigned int)addr,
3849                                 (int)width);
3850                 Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
3851                 return JIM_ERR;
3852         }
3853
3854         /* Transfer loop */
3855
3856         /* index counter */
3857         n = 0;
3858         /* assume ok */
3859         e = JIM_OK;
3860
3861         size_t buffersize = 4096;
3862         uint8_t *buffer = malloc(buffersize);
3863         if (buffer == NULL)
3864                 return JIM_ERR;
3865
3866         while (len) {
3867                 /* Slurp... in buffer size chunks */
3868
3869                 count = len; /* in objects.. */
3870                 if (count > (buffersize / width))
3871                         count = (buffersize / width);
3872
3873                 v = 0; /* shut up gcc */
3874                 for (i = 0; i < count; i++, n++) {
3875                         get_int_array_element(interp, varname, n, &v);
3876                         switch (width) {
3877                         case 4:
3878                                 target_buffer_set_u32(target, &buffer[i * width], v);
3879                                 break;
3880                         case 2:
3881                                 target_buffer_set_u16(target, &buffer[i * width], v);
3882                                 break;
3883                         case 1:
3884                                 buffer[i] = v & 0x0ff;
3885                                 break;
3886                         }
3887                 }
3888                 len -= count;
3889
3890                 retval = target_write_memory(target, addr, width, count, buffer);
3891                 if (retval != ERROR_OK) {
3892                         /* BOO !*/
3893                         LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
3894                                           (unsigned int)addr,
3895                                           (int)width,
3896                                           (int)count);
3897                         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3898                         Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
3899                         e = JIM_ERR;
3900                         break;
3901                 }
3902         }
3903
3904         free(buffer);
3905
3906         Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3907
3908         return e;
3909 }
3910
3911 /* FIX? should we propagate errors here rather than printing them
3912  * and continuing?
3913  */
3914 void target_handle_event(struct target *target, enum target_event e)
3915 {
3916         struct target_event_action *teap;
3917
3918         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3919                 if (teap->event == e) {
3920                         LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
3921                                            target->target_number,
3922                                            target_name(target),
3923                                            target_type_name(target),
3924                                            e,
3925                                            Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
3926                                            Jim_GetString(teap->body, NULL));
3927                         if (Jim_EvalObj(teap->interp, teap->body) != JIM_OK) {
3928                                 Jim_MakeErrorMessage(teap->interp);
3929                                 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(teap->interp), NULL));
3930                         }
3931                 }
3932         }
3933 }
3934
3935 /**
3936  * Returns true only if the target has a handler for the specified event.
3937  */
3938 bool target_has_event_action(struct target *target, enum target_event event)
3939 {
3940         struct target_event_action *teap;
3941
3942         for (teap = target->event_action; teap != NULL; teap = teap->next) {
3943                 if (teap->event == event)
3944                         return true;
3945         }
3946         return false;
3947 }
3948
3949 enum target_cfg_param {
3950         TCFG_TYPE,
3951         TCFG_EVENT,
3952         TCFG_WORK_AREA_VIRT,
3953         TCFG_WORK_AREA_PHYS,
3954         TCFG_WORK_AREA_SIZE,
3955         TCFG_WORK_AREA_BACKUP,
3956         TCFG_ENDIAN,
3957         TCFG_VARIANT,
3958         TCFG_COREID,
3959         TCFG_CHAIN_POSITION,
3960         TCFG_DBGBASE,
3961         TCFG_RTOS,
3962 };
3963
3964 static Jim_Nvp nvp_config_opts[] = {
3965         { .name = "-type",             .value = TCFG_TYPE },
3966         { .name = "-event",            .value = TCFG_EVENT },
3967         { .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
3968         { .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
3969         { .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
3970         { .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
3971         { .name = "-endian" ,          .value = TCFG_ENDIAN },
3972         { .name = "-variant",          .value = TCFG_VARIANT },
3973         { .name = "-coreid",           .value = TCFG_COREID },
3974         { .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
3975         { .name = "-dbgbase",          .value = TCFG_DBGBASE },
3976         { .name = "-rtos",             .value = TCFG_RTOS },
3977         { .name = NULL, .value = -1 }
3978 };
3979
3980 static int target_configure(Jim_GetOptInfo *goi, struct target *target)
3981 {
3982         Jim_Nvp *n;
3983         Jim_Obj *o;
3984         jim_wide w;
3985         char *cp;
3986         int e;
3987
3988         /* parse config or cget options ... */
3989         while (goi->argc > 0) {
3990                 Jim_SetEmptyResult(goi->interp);
3991                 /* Jim_GetOpt_Debug(goi); */
3992
3993                 if (target->type->target_jim_configure) {
3994                         /* target defines a configure function */
3995                         /* target gets first dibs on parameters */
3996                         e = (*(target->type->target_jim_configure))(target, goi);
3997                         if (e == JIM_OK) {
3998                                 /* more? */
3999                                 continue;
4000                         }
4001                         if (e == JIM_ERR) {
4002                                 /* An error */
4003                                 return e;
4004                         }
4005                         /* otherwise we 'continue' below */
4006                 }
4007                 e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
4008                 if (e != JIM_OK) {
4009                         Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
4010                         return e;
4011                 }
4012                 switch (n->value) {
4013                 case TCFG_TYPE:
4014                         /* not setable */
4015                         if (goi->isconfigure) {
4016                                 Jim_SetResultFormatted(goi->interp,
4017                                                 "not settable: %s", n->name);
4018                                 return JIM_ERR;
4019                         } else {
4020 no_params:
4021                                 if (goi->argc != 0) {
4022                                         Jim_WrongNumArgs(goi->interp,
4023                                                         goi->argc, goi->argv,
4024                                                         "NO PARAMS");
4025                                         return JIM_ERR;
4026                                 }
4027                         }
4028                         Jim_SetResultString(goi->interp,
4029                                         target_type_name(target), -1);
4030                         /* loop for more */
4031                         break;
4032                 case TCFG_EVENT:
4033                         if (goi->argc == 0) {
4034                                 Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
4035                                 return JIM_ERR;
4036                         }
4037
4038                         e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
4039                         if (e != JIM_OK) {
4040                                 Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
4041                                 return e;
4042                         }
4043
4044                         if (goi->isconfigure) {
4045                                 if (goi->argc != 1) {
4046                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
4047                                         return JIM_ERR;
4048                                 }
4049                         } else {
4050                                 if (goi->argc != 0) {
4051                                         Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
4052                                         return JIM_ERR;
4053                                 }
4054                         }
4055
4056                         {
4057                                 struct target_event_action *teap;
4058
4059                                 teap = target->event_action;
4060                                 /* replace existing? */
4061                                 while (teap) {
4062                                         if (teap->event == (enum target_event)n->value)
4063                                                 break;
4064                                         teap = teap->next;
4065                                 }
4066
4067                                 if (goi->isconfigure) {
4068                                         bool replace = true;
4069                                         if (teap == NULL) {
4070                                                 /* create new */
4071                                                 teap = calloc(1, sizeof(*teap));
4072                                                 replace = false;
4073                                         }
4074                                         teap->event = n->value;
4075                                         teap->interp = goi->interp;
4076                                         Jim_GetOpt_Obj(goi, &o);
4077                                         if (teap->body)
4078                                                 Jim_DecrRefCount(teap->interp, teap->body);
4079                                         teap->body  = Jim_DuplicateObj(goi->interp, o);
4080                                         /*
4081                                          * FIXME:
4082                                          *     Tcl/TK - "tk events" have a nice feature.
4083                                          *     See the "BIND" command.
4084                                          *    We should support that here.
4085                                          *     You can specify %X and %Y in the event code.
4086                                          *     The idea is: %T - target name.
4087                                          *     The idea is: %N - target number
4088                                          *     The idea is: %E - event name.
4089                                          */
4090                                         Jim_IncrRefCount(teap->body);
4091
4092                                         if (!replace) {
4093                                                 /* add to head of event list */
4094                                                 teap->next = target->event_action;
4095                                                 target->event_action = teap;
4096                                         }
4097                                         Jim_SetEmptyResult(goi->interp);
4098                                 } else {
4099                                         /* get */
4100                                         if (teap == NULL)
4101                                                 Jim_SetEmptyResult(goi->interp);
4102                                         else
4103                                                 Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
4104                                 }
4105                         }
4106                         /* loop for more */
4107                         break;
4108
4109                 case TCFG_WORK_AREA_VIRT:
4110                         if (goi->isconfigure) {
4111                                 target_free_all_working_areas(target);
4112                                 e = Jim_GetOpt_Wide(goi, &w);
4113                                 if (e != JIM_OK)
4114                                         return e;
4115                                 target->working_area_virt = w;
4116                                 target->working_area_virt_spec = true;
4117                         } else {
4118                                 if (goi->argc != 0)
4119                                         goto no_params;
4120                         }
4121                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
4122                         /* loop for more */
4123                         break;
4124
4125                 case TCFG_WORK_AREA_PHYS:
4126                         if (goi->isconfigure) {
4127                                 target_free_all_working_areas(target);
4128                                 e = Jim_GetOpt_Wide(goi, &w);
4129                                 if (e != JIM_OK)
4130                                         return e;
4131                                 target->working_area_phys = w;
4132                                 target->working_area_phys_spec = true;
4133                         } else {
4134                                 if (goi->argc != 0)
4135                                         goto no_params;
4136                         }
4137                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
4138                         /* loop for more */
4139                         break;
4140
4141                 case TCFG_WORK_AREA_SIZE:
4142                         if (goi->isconfigure) {
4143                                 target_free_all_working_areas(target);
4144                                 e = Jim_GetOpt_Wide(goi, &w);
4145                                 if (e != JIM_OK)
4146                                         return e;
4147                                 target->working_area_size = w;
4148                         } else {
4149                                 if (goi->argc != 0)
4150                                         goto no_params;
4151                         }
4152                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4153                         /* loop for more */
4154                         break;
4155
4156                 case TCFG_WORK_AREA_BACKUP:
4157                         if (goi->isconfigure) {
4158                                 target_free_all_working_areas(target);
4159                                 e = Jim_GetOpt_Wide(goi, &w);
4160                                 if (e != JIM_OK)
4161                                         return e;
4162                                 /* make this exactly 1 or 0 */
4163                                 target->backup_working_area = (!!w);
4164                         } else {
4165                                 if (goi->argc != 0)
4166                                         goto no_params;
4167                         }
4168                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
4169                         /* loop for more e*/
4170                         break;
4171
4172
4173                 case TCFG_ENDIAN:
4174                         if (goi->isconfigure) {
4175                                 e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
4176                                 if (e != JIM_OK) {
4177                                         Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
4178                                         return e;
4179                                 }
4180                                 target->endianness = n->value;
4181                         } else {
4182                                 if (goi->argc != 0)
4183                                         goto no_params;
4184                         }
4185                         n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4186                         if (n->name == NULL) {
4187                                 target->endianness = TARGET_LITTLE_ENDIAN;
4188                                 n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
4189                         }
4190                         Jim_SetResultString(goi->interp, n->name, -1);
4191                         /* loop for more */
4192                         break;
4193
4194                 case TCFG_VARIANT:
4195                         if (goi->isconfigure) {
4196                                 if (goi->argc < 1) {
4197                                         Jim_SetResultFormatted(goi->interp,
4198                                                                                    "%s ?STRING?",
4199                                                                                    n->name);
4200                                         return JIM_ERR;
4201                                 }
4202                                 if (target->variant)
4203                                         free((void *)(target->variant));
4204                                 e = Jim_GetOpt_String(goi, &cp, NULL);
4205                                 if (e != JIM_OK)
4206                                         return e;
4207                                 target->variant = strdup(cp);
4208                         } else {
4209                                 if (goi->argc != 0)
4210                                         goto no_params;
4211                         }
4212                         Jim_SetResultString(goi->interp, target->variant, -1);
4213                         /* loop for more */
4214                         break;
4215
4216                 case TCFG_COREID:
4217                         if (goi->isconfigure) {
4218                                 e = Jim_GetOpt_Wide(goi, &w);
4219                                 if (e != JIM_OK)
4220                                         return e;
4221                                 target->coreid = (int32_t)w;
4222                         } else {
4223                                 if (goi->argc != 0)
4224                                         goto no_params;
4225                         }
4226                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->working_area_size));
4227                         /* loop for more */
4228                         break;
4229
4230                 case TCFG_CHAIN_POSITION:
4231                         if (goi->isconfigure) {
4232                                 Jim_Obj *o_t;
4233                                 struct jtag_tap *tap;
4234                                 target_free_all_working_areas(target);
4235                                 e = Jim_GetOpt_Obj(goi, &o_t);
4236                                 if (e != JIM_OK)
4237                                         return e;
4238                                 tap = jtag_tap_by_jim_obj(goi->interp, o_t);
4239                                 if (tap == NULL)
4240                                         return JIM_ERR;
4241                                 /* make this exactly 1 or 0 */
4242                                 target->tap = tap;
4243                         } else {
4244                                 if (goi->argc != 0)
4245                                         goto no_params;
4246                         }
4247                         Jim_SetResultString(goi->interp, target->tap->dotted_name, -1);
4248                         /* loop for more e*/
4249                         break;
4250                 case TCFG_DBGBASE:
4251                         if (goi->isconfigure) {
4252                                 e = Jim_GetOpt_Wide(goi, &w);
4253                                 if (e != JIM_OK)
4254                                         return e;
4255                                 target->dbgbase = (uint32_t)w;
4256                                 target->dbgbase_set = true;
4257                         } else {
4258                                 if (goi->argc != 0)
4259                                         goto no_params;
4260                         }
4261                         Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, target->dbgbase));
4262                         /* loop for more */
4263                         break;
4264
4265                 case TCFG_RTOS:
4266                         /* RTOS */
4267                         {
4268                                 int result = rtos_create(goi, target);
4269                                 if (result != JIM_OK)
4270                                         return result;
4271                         }
4272                         /* loop for more */
4273                         break;
4274                 }
4275         } /* while (goi->argc) */
4276
4277
4278                 /* done - we return */
4279         return JIM_OK;
4280 }
4281
4282 static int jim_target_configure(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
4283 {
4284         Jim_GetOptInfo goi;
4285
4286         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4287         goi.isconfigure = !strcmp(Jim_GetString(argv[0], NULL), "configure");
4288         int need_args = 1 + goi.isconfigure;
4289         if (goi.argc < need_args) {
4290                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
4291                         goi.isconfigure
4292                                 ? "missing: -option VALUE ..."
4293                                 : "missing: -option ...");
4294                 return JIM_ERR;
4295         }
4296         struct target *target = Jim_CmdPrivData(goi.interp);
4297         return target_configure(&goi, target);
4298 }
4299
4300 static int jim_target_mw(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4301 {
4302         const char *cmd_name = Jim_GetString(argv[0], NULL);
4303
4304         Jim_GetOptInfo goi;
4305         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4306
4307         if (goi.argc < 2 || goi.argc > 4) {
4308                 Jim_SetResultFormatted(goi.interp,
4309                                 "usage: %s [phys] <address> <data> [<count>]", cmd_name);
4310                 return JIM_ERR;
4311         }
4312
4313         target_write_fn fn;
4314         fn = target_write_memory_fast;
4315
4316         int e;
4317         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4318                 /* consume it */
4319                 struct Jim_Obj *obj;
4320                 e = Jim_GetOpt_Obj(&goi, &obj);
4321                 if (e != JIM_OK)
4322                         return e;
4323
4324                 fn = target_write_phys_memory;
4325         }
4326
4327         jim_wide a;
4328         e = Jim_GetOpt_Wide(&goi, &a);
4329         if (e != JIM_OK)
4330                 return e;
4331
4332         jim_wide b;
4333         e = Jim_GetOpt_Wide(&goi, &b);
4334         if (e != JIM_OK)
4335                 return e;
4336
4337         jim_wide c = 1;
4338         if (goi.argc == 1) {
4339                 e = Jim_GetOpt_Wide(&goi, &c);
4340                 if (e != JIM_OK)
4341                         return e;
4342         }
4343
4344         /* all args must be consumed */
4345         if (goi.argc != 0)
4346                 return JIM_ERR;
4347
4348         struct target *target = Jim_CmdPrivData(goi.interp);
4349         unsigned data_size;
4350         if (strcasecmp(cmd_name, "mww") == 0)
4351                 data_size = 4;
4352         else if (strcasecmp(cmd_name, "mwh") == 0)
4353                 data_size = 2;
4354         else if (strcasecmp(cmd_name, "mwb") == 0)
4355                 data_size = 1;
4356         else {
4357                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4358                 return JIM_ERR;
4359         }
4360
4361         return (target_fill_mem(target, a, fn, data_size, b, c) == ERROR_OK) ? JIM_OK : JIM_ERR;
4362 }
4363
4364 /**
4365 *  @brief Reads an array of words/halfwords/bytes from target memory starting at specified address.
4366 *
4367 *  Usage: mdw [phys] <address> [<count>] - for 32 bit reads
4368 *         mdh [phys] <address> [<count>] - for 16 bit reads
4369 *         mdb [phys] <address> [<count>] - for  8 bit reads
4370 *
4371 *  Count defaults to 1.
4372 *
4373 *  Calls target_read_memory or target_read_phys_memory depending on
4374 *  the presence of the "phys" argument
4375 *  Reads the target memory in blocks of max. 32 bytes, and returns an array of ints formatted
4376 *  to int representation in base16.
4377 *  Also outputs read data in a human readable form using command_print
4378 *
4379 *  @param phys if present target_read_phys_memory will be used instead of target_read_memory
4380 *  @param address address where to start the read. May be specified in decimal or hex using the standard "0x" prefix
4381 *  @param count optional count parameter to read an array of values. If not specified, defaults to 1.
4382 *  @returns:  JIM_ERR on error or JIM_OK on success and sets the result string to an array of ascii formatted numbers
4383 *  on success, with [<count>] number of elements.
4384 *
4385 *  In case of little endian target:
4386 *      Example1: "mdw 0x00000000"  returns "10123456"
4387 *      Exmaple2: "mdh 0x00000000 1" returns "3456"
4388 *      Example3: "mdb 0x00000000" returns "56"
4389 *      Example4: "mdh 0x00000000 2" returns "3456 1012"
4390 *      Example5: "mdb 0x00000000 3" returns "56 34 12"
4391 **/
4392 static int jim_target_md(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4393 {
4394         const char *cmd_name = Jim_GetString(argv[0], NULL);
4395
4396         Jim_GetOptInfo goi;
4397         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4398
4399         if ((goi.argc < 1) || (goi.argc > 3)) {
4400                 Jim_SetResultFormatted(goi.interp,
4401                                 "usage: %s [phys] <address> [<count>]", cmd_name);
4402                 return JIM_ERR;
4403         }
4404
4405         int (*fn)(struct target *target,
4406                         uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
4407         fn = target_read_memory;
4408
4409         int e;
4410         if (strcmp(Jim_GetString(argv[1], NULL), "phys") == 0) {
4411                 /* consume it */
4412                 struct Jim_Obj *obj;
4413                 e = Jim_GetOpt_Obj(&goi, &obj);
4414                 if (e != JIM_OK)
4415                         return e;
4416
4417                 fn = target_read_phys_memory;
4418         }
4419
4420         /* Read address parameter */
4421         jim_wide addr;
4422         e = Jim_GetOpt_Wide(&goi, &addr);
4423         if (e != JIM_OK)
4424                 return JIM_ERR;
4425
4426         /* If next parameter exists, read it out as the count parameter, if not, set it to 1 (default) */
4427         jim_wide count;
4428         if (goi.argc == 1) {
4429                 e = Jim_GetOpt_Wide(&goi, &count);
4430                 if (e != JIM_OK)
4431                         return JIM_ERR;
4432         } else
4433                 count = 1;
4434
4435         /* all args must be consumed */
4436         if (goi.argc != 0)
4437                 return JIM_ERR;
4438
4439         jim_wide dwidth = 1; /* shut up gcc */
4440         if (strcasecmp(cmd_name, "mdw") == 0)
4441                 dwidth = 4;
4442         else if (strcasecmp(cmd_name, "mdh") == 0)
4443                 dwidth = 2;
4444         else if (strcasecmp(cmd_name, "mdb") == 0)
4445                 dwidth = 1;
4446         else {
4447                 LOG_ERROR("command '%s' unknown: ", cmd_name);
4448                 return JIM_ERR;
4449         }
4450
4451         /* convert count to "bytes" */
4452         int bytes = count * dwidth;
4453
4454         struct target *target = Jim_CmdPrivData(goi.interp);
4455         uint8_t  target_buf[32];
4456         jim_wide x, y, z;
4457         while (bytes > 0) {
4458                 y = (bytes < 16) ? bytes : 16; /* y = min(bytes, 16); */
4459
4460                 /* Try to read out next block */
4461                 e = fn(target, addr, dwidth, y / dwidth, target_buf);
4462
4463                 if (e != ERROR_OK) {
4464                         Jim_SetResultFormatted(interp, "error reading target @ 0x%08lx", (long)addr);
4465                         return JIM_ERR;
4466                 }
4467
4468                 command_print_sameline(NULL, "0x%08x ", (int)(addr));
4469                 switch (dwidth) {
4470                 case 4:
4471                         for (x = 0; x < 16 && x < y; x += 4) {
4472                                 z = target_buffer_get_u32(target, &(target_buf[x]));
4473                                 command_print_sameline(NULL, "%08x ", (int)(z));
4474                         }
4475                         for (; (x < 16) ; x += 4)
4476                                 command_print_sameline(NULL, "         ");
4477                         break;
4478                 case 2:
4479                         for (x = 0; x < 16 && x < y; x += 2) {
4480                                 z = target_buffer_get_u16(target, &(target_buf[x]));
4481                                 command_print_sameline(NULL, "%04x ", (int)(z));
4482                         }
4483                         for (; (x < 16) ; x += 2)
4484                                 command_print_sameline(NULL, "     ");
4485                         break;
4486                 case 1:
4487                 default:
4488                         for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
4489                                 z = target_buffer_get_u8(target, &(target_buf[x]));
4490                                 command_print_sameline(NULL, "%02x ", (int)(z));
4491                         }
4492                         for (; (x < 16) ; x += 1)
4493                                 command_print_sameline(NULL, "   ");
4494                         break;
4495                 }
4496                 /* ascii-ify the bytes */
4497                 for (x = 0 ; x < y ; x++) {
4498                         if ((target_buf[x] >= 0x20) &&
4499                                 (target_buf[x] <= 0x7e)) {
4500                                 /* good */
4501                         } else {
4502                                 /* smack it */
4503                                 target_buf[x] = '.';
4504                         }
4505                 }
4506                 /* space pad  */
4507                 while (x < 16) {
4508                         target_buf[x] = ' ';
4509                         x++;
4510                 }
4511                 /* terminate */
4512                 target_buf[16] = 0;
4513                 /* print - with a newline */
4514                 command_print_sameline(NULL, "%s\n", target_buf);
4515                 /* NEXT... */
4516                 bytes -= 16;
4517                 addr += 16;
4518         }
4519         return JIM_OK;
4520 }
4521
4522 static int jim_target_mem2array(Jim_Interp *interp,
4523                 int argc, Jim_Obj *const *argv)
4524 {
4525         struct target *target = Jim_CmdPrivData(interp);
4526         return target_mem2array(interp, target, argc - 1, argv + 1);
4527 }
4528
4529 static int jim_target_array2mem(Jim_Interp *interp,
4530                 int argc, Jim_Obj *const *argv)
4531 {
4532         struct target *target = Jim_CmdPrivData(interp);
4533         return target_array2mem(interp, target, argc - 1, argv + 1);
4534 }
4535
4536 static int jim_target_tap_disabled(Jim_Interp *interp)
4537 {
4538         Jim_SetResultFormatted(interp, "[TAP is disabled]");
4539         return JIM_ERR;
4540 }
4541
4542 static int jim_target_examine(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4543 {
4544         if (argc != 1) {
4545                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4546                 return JIM_ERR;
4547         }
4548         struct target *target = Jim_CmdPrivData(interp);
4549         if (!target->tap->enabled)
4550                 return jim_target_tap_disabled(interp);
4551
4552         int e = target->type->examine(target);
4553         if (e != ERROR_OK)
4554                 return JIM_ERR;
4555         return JIM_OK;
4556 }
4557
4558 static int jim_target_halt_gdb(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4559 {
4560         if (argc != 1) {
4561                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4562                 return JIM_ERR;
4563         }
4564         struct target *target = Jim_CmdPrivData(interp);
4565
4566         if (target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT) != ERROR_OK)
4567                 return JIM_ERR;
4568
4569         return JIM_OK;
4570 }
4571
4572 static int jim_target_poll(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4573 {
4574         if (argc != 1) {
4575                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4576                 return JIM_ERR;
4577         }
4578         struct target *target = Jim_CmdPrivData(interp);
4579         if (!target->tap->enabled)
4580                 return jim_target_tap_disabled(interp);
4581
4582         int e;
4583         if (!(target_was_examined(target)))
4584                 e = ERROR_TARGET_NOT_EXAMINED;
4585         else
4586                 e = target->type->poll(target);
4587         if (e != ERROR_OK)
4588                 return JIM_ERR;
4589         return JIM_OK;
4590 }
4591
4592 static int jim_target_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4593 {
4594         Jim_GetOptInfo goi;
4595         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4596
4597         if (goi.argc != 2) {
4598                 Jim_WrongNumArgs(interp, 0, argv,
4599                                 "([tT]|[fF]|assert|deassert) BOOL");
4600                 return JIM_ERR;
4601         }
4602
4603         Jim_Nvp *n;
4604         int e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
4605         if (e != JIM_OK) {
4606                 Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
4607                 return e;
4608         }
4609         /* the halt or not param */
4610         jim_wide a;
4611         e = Jim_GetOpt_Wide(&goi, &a);
4612         if (e != JIM_OK)
4613                 return e;
4614
4615         struct target *target = Jim_CmdPrivData(goi.interp);
4616         if (!target->tap->enabled)
4617                 return jim_target_tap_disabled(interp);
4618         if (!(target_was_examined(target))) {
4619                 LOG_ERROR("Target not examined yet");
4620                 return ERROR_TARGET_NOT_EXAMINED;
4621         }
4622         if (!target->type->assert_reset || !target->type->deassert_reset) {
4623                 Jim_SetResultFormatted(interp,
4624                                 "No target-specific reset for %s",
4625                                 target_name(target));
4626                 return JIM_ERR;
4627         }
4628         /* determine if we should halt or not. */
4629         target->reset_halt = !!a;
4630         /* When this happens - all workareas are invalid. */
4631         target_free_all_working_areas_restore(target, 0);
4632
4633         /* do the assert */
4634         if (n->value == NVP_ASSERT)
4635                 e = target->type->assert_reset(target);
4636         else
4637                 e = target->type->deassert_reset(target);
4638         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4639 }
4640
4641 static int jim_target_halt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4642 {
4643         if (argc != 1) {
4644                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4645                 return JIM_ERR;
4646         }
4647         struct target *target = Jim_CmdPrivData(interp);
4648         if (!target->tap->enabled)
4649                 return jim_target_tap_disabled(interp);
4650         int e = target->type->halt(target);
4651         return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
4652 }
4653
4654 static int jim_target_wait_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4655 {
4656         Jim_GetOptInfo goi;
4657         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4658
4659         /* params:  <name>  statename timeoutmsecs */
4660         if (goi.argc != 2) {
4661                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4662                 Jim_SetResultFormatted(goi.interp,
4663                                 "%s <state_name> <timeout_in_msec>", cmd_name);
4664                 return JIM_ERR;
4665         }
4666
4667         Jim_Nvp *n;
4668         int e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
4669         if (e != JIM_OK) {
4670                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_state, 1);
4671                 return e;
4672         }
4673         jim_wide a;
4674         e = Jim_GetOpt_Wide(&goi, &a);
4675         if (e != JIM_OK)
4676                 return e;
4677         struct target *target = Jim_CmdPrivData(interp);
4678         if (!target->tap->enabled)
4679                 return jim_target_tap_disabled(interp);
4680
4681         e = target_wait_state(target, n->value, a);
4682         if (e != ERROR_OK) {
4683                 Jim_Obj *eObj = Jim_NewIntObj(interp, e);
4684                 Jim_SetResultFormatted(goi.interp,
4685                                 "target: %s wait %s fails (%#s) %s",
4686                                 target_name(target), n->name,
4687                                 eObj, target_strerror_safe(e));
4688                 Jim_FreeNewObj(interp, eObj);
4689                 return JIM_ERR;
4690         }
4691         return JIM_OK;
4692 }
4693 /* List for human, Events defined for this target.
4694  * scripts/programs should use 'name cget -event NAME'
4695  */
4696 static int jim_target_event_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4697 {
4698         struct command_context *cmd_ctx = current_command_context(interp);
4699         assert(cmd_ctx != NULL);
4700
4701         struct target *target = Jim_CmdPrivData(interp);
4702         struct target_event_action *teap = target->event_action;
4703         command_print(cmd_ctx, "Event actions for target (%d) %s\n",
4704                                    target->target_number,
4705                                    target_name(target));
4706         command_print(cmd_ctx, "%-25s | Body", "Event");
4707         command_print(cmd_ctx, "------------------------- | "
4708                         "----------------------------------------");
4709         while (teap) {
4710                 Jim_Nvp *opt = Jim_Nvp_value2name_simple(nvp_target_event, teap->event);
4711                 command_print(cmd_ctx, "%-25s | %s",
4712                                 opt->name, Jim_GetString(teap->body, NULL));
4713                 teap = teap->next;
4714         }
4715         command_print(cmd_ctx, "***END***");
4716         return JIM_OK;
4717 }
4718 static int jim_target_current_state(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4719 {
4720         if (argc != 1) {
4721                 Jim_WrongNumArgs(interp, 1, argv, "[no parameters]");
4722                 return JIM_ERR;
4723         }
4724         struct target *target = Jim_CmdPrivData(interp);
4725         Jim_SetResultString(interp, target_state_name(target), -1);
4726         return JIM_OK;
4727 }
4728 static int jim_target_invoke_event(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
4729 {
4730         Jim_GetOptInfo goi;
4731         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
4732         if (goi.argc != 1) {
4733                 const char *cmd_name = Jim_GetString(argv[0], NULL);
4734                 Jim_SetResultFormatted(goi.interp, "%s <eventname>", cmd_name);
4735                 return JIM_ERR;
4736         }
4737         Jim_Nvp *n;
4738         int e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
4739         if (e != JIM_OK) {
4740                 Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
4741                 return e;
4742         }
4743         struct target *target = Jim_CmdPrivData(interp);
4744         target_handle_event(target, n->value);
4745         return JIM_OK;
4746 }
4747
4748 static const struct command_registration target_instance_command_handlers[] = {
4749         {
4750                 .name = "configure",
4751                 .mode = COMMAND_CONFIG,
4752                 .jim_handler = jim_target_configure,
4753                 .help  = "configure a new target for use",
4754                 .usage = "[target_attribute ...]",
4755         },
4756         {
4757                 .name = "cget",
4758                 .mode = COMMAND_ANY,
4759                 .jim_handler = jim_target_configure,
4760                 .help  = "returns the specified target attribute",
4761                 .usage = "target_attribute",
4762         },
4763         {
4764                 .name = "mww",
4765                 .mode = COMMAND_EXEC,
4766                 .jim_handler = jim_target_mw,
4767                 .help = "Write 32-bit word(s) to target memory",
4768                 .usage = "address data [count]",
4769         },
4770         {
4771                 .name = "mwh",
4772                 .mode = COMMAND_EXEC,
4773                 .jim_handler = jim_target_mw,
4774                 .help = "Write 16-bit half-word(s) to target memory",
4775                 .usage = "address data [count]",
4776         },
4777         {
4778                 .name = "mwb",
4779                 .mode = COMMAND_EXEC,
4780                 .jim_handler = jim_target_mw,
4781                 .help = "Write byte(s) to target memory",
4782                 .usage = "address data [count]",
4783         },
4784         {
4785                 .name = "mdw",
4786                 .mode = COMMAND_EXEC,
4787                 .jim_handler = jim_target_md,
4788                 .help = "Display target memory as 32-bit words",
4789                 .usage = "address [count]",
4790         },
4791         {
4792                 .name = "mdh",
4793                 .mode = COMMAND_EXEC,
4794                 .jim_handler = jim_target_md,
4795                 .help = "Display target memory as 16-bit half-words",
4796                 .usage = "address [count]",
4797         },
4798         {
4799                 .name = "mdb",
4800                 .mode = COMMAND_EXEC,
4801                 .jim_handler = jim_target_md,
4802                 .help = "Display target memory as 8-bit bytes",
4803                 .usage = "address [count]",
4804         },
4805         {
4806                 .name = "array2mem",
4807                 .mode = COMMAND_EXEC,
4808                 .jim_handler = jim_target_array2mem,
4809                 .help = "Writes Tcl array of 8/16/32 bit numbers "
4810                         "to target memory",
4811                 .usage = "arrayname bitwidth address count",
4812         },
4813         {
4814                 .name = "mem2array",
4815                 .mode = COMMAND_EXEC,
4816                 .jim_handler = jim_target_mem2array,
4817                 .help = "Loads Tcl array of 8/16/32 bit numbers "
4818                         "from target memory",
4819                 .usage = "arrayname bitwidth address count",
4820         },
4821         {
4822                 .name = "eventlist",
4823                 .mode = COMMAND_EXEC,
4824                 .jim_handler = jim_target_event_list,
4825                 .help = "displays a table of events defined for this target",
4826         },
4827         {
4828                 .name = "curstate",
4829                 .mode = COMMAND_EXEC,
4830                 .jim_handler = jim_target_current_state,
4831                 .help = "displays the current state of this target",
4832         },
4833         {
4834                 .name = "arp_examine",
4835                 .mode = COMMAND_EXEC,
4836                 .jim_handler = jim_target_examine,
4837                 .help = "used internally for reset processing",
4838         },
4839         {
4840                 .name = "arp_halt_gdb",
4841                 .mode = COMMAND_EXEC,
4842                 .jim_handler = jim_target_halt_gdb,
4843                 .help = "used internally for reset processing to halt GDB",
4844         },
4845         {
4846                 .name = "arp_poll",
4847                 .mode = COMMAND_EXEC,
4848                 .jim_handler = jim_target_poll,
4849                 .help = "used internally for reset processing",
4850         },
4851         {
4852                 .name = "arp_reset",
4853                 .mode = COMMAND_EXEC,
4854                 .jim_handler = jim_target_reset,
4855                 .help = "used internally for reset processing",
4856         },
4857         {
4858                 .name = "arp_halt",
4859                 .mode = COMMAND_EXEC,
4860                 .jim_handler = jim_target_halt,
4861                 .help = "used internally for reset processing",
4862         },
4863         {
4864                 .name = "arp_waitstate",
4865                 .mode = COMMAND_EXEC,
4866                 .jim_handler = jim_target_wait_state,
4867                 .help = "used internally for reset processing",
4868         },
4869         {
4870                 .name = "invoke-event",
4871                 .mode = COMMAND_EXEC,
4872                 .jim_handler = jim_target_invoke_event,
4873                 .help = "invoke handler for specified event",
4874                 .usage = "event_name",
4875         },
4876         COMMAND_REGISTRATION_DONE
4877 };
4878
4879 static int target_create(Jim_GetOptInfo *goi)
4880 {
4881         Jim_Obj *new_cmd;
4882         Jim_Cmd *cmd;
4883         const char *cp;
4884         char *cp2;
4885         int e;
4886         int x;
4887         struct target *target;
4888         struct command_context *cmd_ctx;
4889
4890         cmd_ctx = current_command_context(goi->interp);
4891         assert(cmd_ctx != NULL);
4892
4893         if (goi->argc < 3) {
4894                 Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
4895                 return JIM_ERR;
4896         }
4897
4898         /* COMMAND */
4899         Jim_GetOpt_Obj(goi, &new_cmd);
4900         /* does this command exist? */
4901         cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
4902         if (cmd) {
4903                 cp = Jim_GetString(new_cmd, NULL);
4904                 Jim_SetResultFormatted(goi->interp, "Command/target: %s Exists", cp);
4905                 return JIM_ERR;
4906         }
4907
4908         /* TYPE */
4909         e = Jim_GetOpt_String(goi, &cp2, NULL);
4910         if (e != JIM_OK)
4911                 return e;
4912         cp = cp2;
4913         /* now does target type exist */
4914         for (x = 0 ; target_types[x] ; x++) {
4915                 if (0 == strcmp(cp, target_types[x]->name)) {
4916                         /* found */
4917                         break;
4918                 }
4919
4920                 /* check for deprecated name */
4921                 if (target_types[x]->deprecated_name) {
4922                         if (0 == strcmp(cp, target_types[x]->deprecated_name)) {
4923                                 /* found */
4924                                 LOG_WARNING("target name is deprecated use: \'%s\'", target_types[x]->name);
4925                                 break;
4926                         }
4927                 }
4928         }
4929         if (target_types[x] == NULL) {
4930                 Jim_SetResultFormatted(goi->interp, "Unknown target type %s, try one of ", cp);
4931                 for (x = 0 ; target_types[x] ; x++) {
4932                         if (target_types[x + 1]) {
4933                                 Jim_AppendStrings(goi->interp,
4934                                                                    Jim_GetResult(goi->interp),
4935                                                                    target_types[x]->name,
4936                                                                    ", ", NULL);
4937                         } else {
4938                                 Jim_AppendStrings(goi->interp,
4939                                                                    Jim_GetResult(goi->interp),
4940                                                                    " or ",
4941                                                                    target_types[x]->name, NULL);
4942                         }
4943                 }
4944                 return JIM_ERR;
4945         }
4946
4947         /* Create it */
4948         target = calloc(1, sizeof(struct target));
4949         /* set target number */
4950         target->target_number = new_target_number();
4951
4952         /* allocate memory for each unique target type */
4953         target->type = (struct target_type *)calloc(1, sizeof(struct target_type));
4954
4955         memcpy(target->type, target_types[x], sizeof(struct target_type));
4956
4957         /* will be set by "-endian" */
4958         target->endianness = TARGET_ENDIAN_UNKNOWN;
4959
4960         /* default to first core, override with -coreid */
4961         target->coreid = 0;
4962
4963         target->working_area        = 0x0;
4964         target->working_area_size   = 0x0;
4965         target->working_areas       = NULL;
4966         target->backup_working_area = 0;
4967
4968         target->state               = TARGET_UNKNOWN;
4969         target->debug_reason        = DBG_REASON_UNDEFINED;
4970         target->reg_cache           = NULL;
4971         target->breakpoints         = NULL;
4972         target->watchpoints         = NULL;
4973         target->next                = NULL;
4974         target->arch_info           = NULL;
4975
4976         target->display             = 1;
4977
4978         target->halt_issued                     = false;
4979
4980         /* initialize trace information */
4981         target->trace_info = malloc(sizeof(struct trace));
4982         target->trace_info->num_trace_points         = 0;
4983         target->trace_info->trace_points_size        = 0;
4984         target->trace_info->trace_points             = NULL;
4985         target->trace_info->trace_history_size       = 0;
4986         target->trace_info->trace_history            = NULL;
4987         target->trace_info->trace_history_pos        = 0;
4988         target->trace_info->trace_history_overflowed = 0;
4989
4990         target->dbgmsg          = NULL;
4991         target->dbg_msg_enabled = 0;
4992
4993         target->endianness = TARGET_ENDIAN_UNKNOWN;
4994
4995         target->rtos = NULL;
4996         target->rtos_auto_detect = false;
4997
4998         /* Do the rest as "configure" options */
4999         goi->isconfigure = 1;
5000         e = target_configure(goi, target);
5001
5002         if (target->tap == NULL) {
5003                 Jim_SetResultString(goi->interp, "-chain-position required when creating target", -1);
5004                 e = JIM_ERR;
5005         }
5006
5007         if (e != JIM_OK) {
5008                 free(target->type);
5009                 free(target);
5010                 return e;
5011         }
5012
5013         if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
5014                 /* default endian to little if not specified */
5015                 target->endianness = TARGET_LITTLE_ENDIAN;
5016         }
5017
5018         /* incase variant is not set */
5019         if (!target->variant)
5020                 target->variant = strdup("");
5021
5022         cp = Jim_GetString(new_cmd, NULL);
5023         target->cmd_name = strdup(cp);
5024
5025         /* create the target specific commands */
5026         if (target->type->commands) {
5027                 e = register_commands(cmd_ctx, NULL, target->type->commands);
5028                 if (ERROR_OK != e)
5029                         LOG_ERROR("unable to register '%s' commands", cp);
5030         }
5031         if (target->type->target_create)
5032                 (*(target->type->target_create))(target, goi->interp);
5033
5034         /* append to end of list */
5035         {
5036                 struct target **tpp;
5037                 tpp = &(all_targets);
5038                 while (*tpp)
5039                         tpp = &((*tpp)->next);
5040                 *tpp = target;
5041         }
5042
5043         /* now - create the new target name command */
5044         const struct command_registration target_subcommands[] = {
5045                 {
5046                         .chain = target_instance_command_handlers,
5047                 },
5048                 {
5049                         .chain = target->type->commands,
5050                 },
5051                 COMMAND_REGISTRATION_DONE
5052         };
5053         const struct command_registration target_commands[] = {
5054                 {
5055                         .name = cp,
5056                         .mode = COMMAND_ANY,
5057                         .help = "target command group",
5058                         .usage = "",
5059                         .chain = target_subcommands,
5060                 },
5061                 COMMAND_REGISTRATION_DONE
5062         };
5063         e = register_commands(cmd_ctx, NULL, target_commands);
5064         if (ERROR_OK != e)
5065                 return JIM_ERR;
5066
5067         struct command *c = command_find_in_context(cmd_ctx, cp);
5068         assert(c);
5069         command_set_handler_data(c, target);
5070
5071         return (ERROR_OK == e) ? JIM_OK : JIM_ERR;
5072 }
5073
5074 static int jim_target_current(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5075 {
5076         if (argc != 1) {
5077                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5078                 return JIM_ERR;
5079         }
5080         struct command_context *cmd_ctx = current_command_context(interp);
5081         assert(cmd_ctx != NULL);
5082
5083         Jim_SetResultString(interp, target_name(get_current_target(cmd_ctx)), -1);
5084         return JIM_OK;
5085 }
5086
5087 static int jim_target_types(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5088 {
5089         if (argc != 1) {
5090                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5091                 return JIM_ERR;
5092         }
5093         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5094         for (unsigned x = 0; NULL != target_types[x]; x++) {
5095                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5096                         Jim_NewStringObj(interp, target_types[x]->name, -1));
5097         }
5098         return JIM_OK;
5099 }
5100
5101 static int jim_target_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5102 {
5103         if (argc != 1) {
5104                 Jim_WrongNumArgs(interp, 1, argv, "Too many parameters");
5105                 return JIM_ERR;
5106         }
5107         Jim_SetResult(interp, Jim_NewListObj(interp, NULL, 0));
5108         struct target *target = all_targets;
5109         while (target) {
5110                 Jim_ListAppendElement(interp, Jim_GetResult(interp),
5111                         Jim_NewStringObj(interp, target_name(target), -1));
5112                 target = target->next;
5113         }
5114         return JIM_OK;
5115 }
5116
5117 static int jim_target_smp(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5118 {
5119         int i;
5120         const char *targetname;
5121         int retval, len;
5122         struct target *target = (struct target *) NULL;
5123         struct target_list *head, *curr, *new;
5124         curr = (struct target_list *) NULL;
5125         head = (struct target_list *) NULL;
5126
5127         retval = 0;
5128         LOG_DEBUG("%d", argc);
5129         /* argv[1] = target to associate in smp
5130          * argv[2] = target to assoicate in smp
5131          * argv[3] ...
5132          */
5133
5134         for (i = 1; i < argc; i++) {
5135
5136                 targetname = Jim_GetString(argv[i], &len);
5137                 target = get_target(targetname);
5138                 LOG_DEBUG("%s ", targetname);
5139                 if (target) {
5140                         new = malloc(sizeof(struct target_list));
5141                         new->target = target;
5142                         new->next = (struct target_list *)NULL;
5143                         if (head == (struct target_list *)NULL) {
5144                                 head = new;
5145                                 curr = head;
5146                         } else {
5147                                 curr->next = new;
5148                                 curr = new;
5149                         }
5150                 }
5151         }
5152         /*  now parse the list of cpu and put the target in smp mode*/
5153         curr = head;
5154
5155         while (curr != (struct target_list *)NULL) {
5156                 target = curr->target;
5157                 target->smp = 1;
5158                 target->head = head;
5159                 curr = curr->next;
5160         }
5161
5162         if (target && target->rtos)
5163                 retval = rtos_smp_init(head->target);
5164
5165         return retval;
5166 }
5167
5168
5169 static int jim_target_create(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5170 {
5171         Jim_GetOptInfo goi;
5172         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5173         if (goi.argc < 3) {
5174                 Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv,
5175                         "<name> <target_type> [<target_options> ...]");
5176                 return JIM_ERR;
5177         }
5178         return target_create(&goi);
5179 }
5180
5181 static int jim_target_number(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5182 {
5183         Jim_GetOptInfo goi;
5184         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
5185
5186         /* It's OK to remove this mechanism sometime after August 2010 or so */
5187         LOG_WARNING("don't use numbers as target identifiers; use names");
5188         if (goi.argc != 1) {
5189                 Jim_SetResultFormatted(goi.interp, "usage: target number <number>");
5190                 return JIM_ERR;
5191         }
5192         jim_wide w;
5193         int e = Jim_GetOpt_Wide(&goi, &w);
5194         if (e != JIM_OK)
5195                 return JIM_ERR;
5196
5197         struct target *target;
5198         for (target = all_targets; NULL != target; target = target->next) {
5199                 if (target->target_number != w)
5200                         continue;
5201
5202                 Jim_SetResultString(goi.interp, target_name(target), -1);
5203                 return JIM_OK;
5204         }
5205         {
5206                 Jim_Obj *wObj = Jim_NewIntObj(goi.interp, w);
5207                 Jim_SetResultFormatted(goi.interp,
5208                         "Target: number %#s does not exist", wObj);
5209                 Jim_FreeNewObj(interp, wObj);
5210         }
5211         return JIM_ERR;
5212 }
5213
5214 static int jim_target_count(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
5215 {
5216         if (argc != 1) {
5217                 Jim_WrongNumArgs(interp, 1, argv, "<no parameters>");
5218                 return JIM_ERR;
5219         }
5220         unsigned count = 0;
5221         struct target *target = all_targets;
5222         while (NULL != target) {
5223                 target = target->next;
5224                 count++;
5225         }
5226         Jim_SetResult(interp, Jim_NewIntObj(interp, count));
5227         return JIM_OK;
5228 }
5229
5230 static const struct command_registration target_subcommand_handlers[] = {
5231         {
5232                 .name = "init",
5233                 .mode = COMMAND_CONFIG,
5234                 .handler = handle_target_init_command,
5235                 .help = "initialize targets",
5236         },
5237         {
5238                 .name = "create",
5239                 /* REVISIT this should be COMMAND_CONFIG ... */
5240                 .mode = COMMAND_ANY,
5241                 .jim_handler = jim_target_create,
5242                 .usage = "name type '-chain-position' name [options ...]",
5243                 .help = "Creates and selects a new target",
5244         },
5245         {
5246                 .name = "current",
5247                 .mode = COMMAND_ANY,
5248                 .jim_handler = jim_target_current,
5249                 .help = "Returns the currently selected target",
5250         },
5251         {
5252                 .name = "types",
5253                 .mode = COMMAND_ANY,
5254                 .jim_handler = jim_target_types,
5255                 .help = "Returns the available target types as "
5256                                 "a list of strings",
5257         },
5258         {
5259                 .name = "names",
5260                 .mode = COMMAND_ANY,
5261                 .jim_handler = jim_target_names,
5262                 .help = "Returns the names of all targets as a list of strings",
5263         },
5264         {
5265                 .name = "number",
5266                 .mode = COMMAND_ANY,
5267                 .jim_handler = jim_target_number,
5268                 .usage = "number",
5269                 .help = "Returns the name of the numbered target "
5270                         "(DEPRECATED)",
5271         },
5272         {
5273                 .name = "count",
5274                 .mode = COMMAND_ANY,
5275                 .jim_handler = jim_target_count,
5276                 .help = "Returns the number of targets as an integer "
5277                         "(DEPRECATED)",
5278         },
5279         {
5280                 .name = "smp",
5281                 .mode = COMMAND_ANY,
5282                 .jim_handler = jim_target_smp,
5283                 .usage = "targetname1 targetname2 ...",
5284                 .help = "gather several target in a smp list"
5285         },
5286
5287         COMMAND_REGISTRATION_DONE
5288 };
5289
5290 struct FastLoad {
5291         uint32_t address;
5292         uint8_t *data;
5293         int length;
5294
5295 };
5296
5297 static int fastload_num;
5298 static struct FastLoad *fastload;
5299
5300 static void free_fastload(void)
5301 {
5302         if (fastload != NULL) {
5303                 int i;
5304                 for (i = 0; i < fastload_num; i++) {
5305                         if (fastload[i].data)
5306                                 free(fastload[i].data);
5307                 }
5308                 free(fastload);
5309                 fastload = NULL;
5310         }
5311 }
5312
5313 COMMAND_HANDLER(handle_fast_load_image_command)
5314 {
5315         uint8_t *buffer;
5316         size_t buf_cnt;
5317         uint32_t image_size;
5318         uint32_t min_address = 0;
5319         uint32_t max_address = 0xffffffff;
5320         int i;
5321
5322         struct image image;
5323
5324         int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
5325                         &image, &min_address, &max_address);
5326         if (ERROR_OK != retval)
5327                 return retval;
5328
5329         struct duration bench;
5330         duration_start(&bench);
5331
5332         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL);
5333         if (retval != ERROR_OK)
5334                 return retval;
5335
5336         image_size = 0x0;
5337         retval = ERROR_OK;
5338         fastload_num = image.num_sections;
5339         fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
5340         if (fastload == NULL) {
5341                 command_print(CMD_CTX, "out of memory");
5342                 image_close(&image);
5343                 return ERROR_FAIL;
5344         }
5345         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
5346         for (i = 0; i < image.num_sections; i++) {
5347                 buffer = malloc(image.sections[i].size);
5348                 if (buffer == NULL) {
5349                         command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5350                                                   (int)(image.sections[i].size));
5351                         retval = ERROR_FAIL;
5352                         break;
5353                 }
5354
5355                 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
5356                 if (retval != ERROR_OK) {
5357                         free(buffer);
5358                         break;
5359                 }
5360
5361                 uint32_t offset = 0;
5362                 uint32_t length = buf_cnt;
5363
5364                 /* DANGER!!! beware of unsigned comparision here!!! */
5365
5366                 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
5367                                 (image.sections[i].base_address < max_address)) {
5368                         if (image.sections[i].base_address < min_address) {
5369                                 /* clip addresses below */
5370                                 offset += min_address-image.sections[i].base_address;
5371                                 length -= offset;
5372                         }
5373
5374                         if (image.sections[i].base_address + buf_cnt > max_address)
5375                                 length -= (image.sections[i].base_address + buf_cnt)-max_address;
5376
5377                         fastload[i].address = image.sections[i].base_address + offset;
5378                         fastload[i].data = malloc(length);
5379                         if (fastload[i].data == NULL) {
5380                                 free(buffer);
5381                                 command_print(CMD_CTX, "error allocating buffer for section (%d bytes)",
5382                                                           length);
5383                                 retval = ERROR_FAIL;
5384                                 break;
5385                         }
5386                         memcpy(fastload[i].data, buffer + offset, length);
5387                         fastload[i].length = length;
5388
5389                         image_size += length;
5390                         command_print(CMD_CTX, "%u bytes written at address 0x%8.8x",
5391                                                   (unsigned int)length,
5392                                                   ((unsigned int)(image.sections[i].base_address + offset)));
5393                 }
5394
5395                 free(buffer);
5396         }
5397
5398         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
5399                 command_print(CMD_CTX, "Loaded %" PRIu32 " bytes "
5400                                 "in %fs (%0.3f KiB/s)", image_size,
5401                                 duration_elapsed(&bench), duration_kbps(&bench, image_size));
5402
5403                 command_print(CMD_CTX,
5404                                 "WARNING: image has not been loaded to target!"
5405                                 "You can issue a 'fast_load' to finish loading.");
5406         }
5407
5408         image_close(&image);
5409
5410         if (retval != ERROR_OK)
5411                 free_fastload();
5412
5413         return retval;
5414 }
5415
5416 COMMAND_HANDLER(handle_fast_load_command)
5417 {
5418         if (CMD_ARGC > 0)
5419                 return ERROR_COMMAND_SYNTAX_ERROR;
5420         if (fastload == NULL) {
5421                 LOG_ERROR("No image in memory");
5422                 return ERROR_FAIL;
5423         }
5424         int i;
5425         int ms = timeval_ms();
5426         int size = 0;
5427         int retval = ERROR_OK;
5428         for (i = 0; i < fastload_num; i++) {
5429                 struct target *target = get_current_target(CMD_CTX);
5430                 command_print(CMD_CTX, "Write to 0x%08x, length 0x%08x",
5431                                           (unsigned int)(fastload[i].address),
5432                                           (unsigned int)(fastload[i].length));
5433                 retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
5434                 if (retval != ERROR_OK)
5435                         break;
5436                 size += fastload[i].length;
5437         }
5438         if (retval == ERROR_OK) {
5439                 int after = timeval_ms();
5440                 command_print(CMD_CTX, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
5441         }
5442         return retval;
5443 }
5444
5445 static const struct command_registration target_command_handlers[] = {
5446         {
5447                 .name = "targets",
5448                 .handler = handle_targets_command,
5449                 .mode = COMMAND_ANY,
5450                 .help = "change current default target (one parameter) "
5451                         "or prints table of all targets (no parameters)",
5452                 .usage = "[target]",
5453         },
5454         {
5455                 .name = "target",
5456                 .mode = COMMAND_CONFIG,
5457                 .help = "configure target",
5458
5459                 .chain = target_subcommand_handlers,
5460         },
5461         COMMAND_REGISTRATION_DONE
5462 };
5463
5464 int target_register_commands(struct command_context *cmd_ctx)
5465 {
5466         return register_commands(cmd_ctx, NULL, target_command_handlers);
5467 }
5468
5469 static bool target_reset_nag = true;
5470
5471 bool get_target_reset_nag(void)
5472 {
5473         return target_reset_nag;
5474 }
5475
5476 COMMAND_HANDLER(handle_target_reset_nag)
5477 {
5478         return CALL_COMMAND_HANDLER(handle_command_parse_bool,
5479                         &target_reset_nag, "Nag after each reset about options to improve "
5480                         "performance");
5481 }
5482
5483 COMMAND_HANDLER(handle_ps_command)
5484 {
5485         struct target *target = get_current_target(CMD_CTX);
5486         char *display;
5487         if (target->state != TARGET_HALTED) {
5488                 LOG_INFO("target not halted !!");
5489                 return ERROR_OK;
5490         }
5491
5492         if ((target->rtos) && (target->rtos->type)
5493                         && (target->rtos->type->ps_command)) {
5494                 display = target->rtos->type->ps_command(target);
5495                 command_print(CMD_CTX, "%s", display);
5496                 free(display);
5497                 return ERROR_OK;
5498         } else {
5499                 LOG_INFO("failed");
5500                 return ERROR_TARGET_FAILURE;
5501         }
5502 }
5503
5504 static const struct command_registration target_exec_command_handlers[] = {
5505         {
5506                 .name = "fast_load_image",
5507                 .handler = handle_fast_load_image_command,
5508                 .mode = COMMAND_ANY,
5509                 .help = "Load image into server memory for later use by "
5510                         "fast_load; primarily for profiling",
5511                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5512                         "[min_address [max_length]]",
5513         },
5514         {
5515                 .name = "fast_load",
5516                 .handler = handle_fast_load_command,
5517                 .mode = COMMAND_EXEC,
5518                 .help = "loads active fast load image to current target "
5519                         "- mainly for profiling purposes",
5520                 .usage = "",
5521         },
5522         {
5523                 .name = "profile",
5524                 .handler = handle_profile_command,
5525                 .mode = COMMAND_EXEC,
5526                 .usage = "seconds filename",
5527                 .help = "profiling samples the CPU PC",
5528         },
5529         /** @todo don't register virt2phys() unless target supports it */
5530         {
5531                 .name = "virt2phys",
5532                 .handler = handle_virt2phys_command,
5533                 .mode = COMMAND_ANY,
5534                 .help = "translate a virtual address into a physical address",
5535                 .usage = "virtual_address",
5536         },
5537         {
5538                 .name = "reg",
5539                 .handler = handle_reg_command,
5540                 .mode = COMMAND_EXEC,
5541                 .help = "display or set a register; with no arguments, "
5542                         "displays all registers and their values",
5543                 .usage = "[(register_name|register_number) [value]]",
5544         },
5545         {
5546                 .name = "poll",
5547                 .handler = handle_poll_command,
5548                 .mode = COMMAND_EXEC,
5549                 .help = "poll target state; or reconfigure background polling",
5550                 .usage = "['on'|'off']",
5551         },
5552         {
5553                 .name = "wait_halt",
5554                 .handler = handle_wait_halt_command,
5555                 .mode = COMMAND_EXEC,
5556                 .help = "wait up to the specified number of milliseconds "
5557                         "(default 5000) for a previously requested halt",
5558                 .usage = "[milliseconds]",
5559         },
5560         {
5561                 .name = "halt",
5562                 .handler = handle_halt_command,
5563                 .mode = COMMAND_EXEC,
5564                 .help = "request target to halt, then wait up to the specified"
5565                         "number of milliseconds (default 5000) for it to complete",
5566                 .usage = "[milliseconds]",
5567         },
5568         {
5569                 .name = "resume",
5570                 .handler = handle_resume_command,
5571                 .mode = COMMAND_EXEC,
5572                 .help = "resume target execution from current PC or address",
5573                 .usage = "[address]",
5574         },
5575         {
5576                 .name = "reset",
5577                 .handler = handle_reset_command,
5578                 .mode = COMMAND_EXEC,
5579                 .usage = "[run|halt|init]",
5580                 .help = "Reset all targets into the specified mode."
5581                         "Default reset mode is run, if not given.",
5582         },
5583         {
5584                 .name = "soft_reset_halt",
5585                 .handler = handle_soft_reset_halt_command,
5586                 .mode = COMMAND_EXEC,
5587                 .usage = "",
5588                 .help = "halt the target and do a soft reset",
5589         },
5590         {
5591                 .name = "step",
5592                 .handler = handle_step_command,
5593                 .mode = COMMAND_EXEC,
5594                 .help = "step one instruction from current PC or address",
5595                 .usage = "[address]",
5596         },
5597         {
5598                 .name = "mdw",
5599                 .handler = handle_md_command,
5600                 .mode = COMMAND_EXEC,
5601                 .help = "display memory words",
5602                 .usage = "['phys'] address [count]",
5603         },
5604         {
5605                 .name = "mdh",
5606                 .handler = handle_md_command,
5607                 .mode = COMMAND_EXEC,
5608                 .help = "display memory half-words",
5609                 .usage = "['phys'] address [count]",
5610         },
5611         {
5612                 .name = "mdb",
5613                 .handler = handle_md_command,
5614                 .mode = COMMAND_EXEC,
5615                 .help = "display memory bytes",
5616                 .usage = "['phys'] address [count]",
5617         },
5618         {
5619                 .name = "mww",
5620                 .handler = handle_mw_command,
5621                 .mode = COMMAND_EXEC,
5622                 .help = "write memory word",
5623                 .usage = "['phys'] address value [count]",
5624         },
5625         {
5626                 .name = "mwh",
5627                 .handler = handle_mw_command,
5628                 .mode = COMMAND_EXEC,
5629                 .help = "write memory half-word",
5630                 .usage = "['phys'] address value [count]",
5631         },
5632         {
5633                 .name = "mwb",
5634                 .handler = handle_mw_command,
5635                 .mode = COMMAND_EXEC,
5636                 .help = "write memory byte",
5637                 .usage = "['phys'] address value [count]",
5638         },
5639         {
5640                 .name = "bp",
5641                 .handler = handle_bp_command,
5642                 .mode = COMMAND_EXEC,
5643                 .help = "list or set hardware or software breakpoint",
5644                 .usage = "<address> [<asid>]<length> ['hw'|'hw_ctx']",
5645         },
5646         {
5647                 .name = "rbp",
5648                 .handler = handle_rbp_command,
5649                 .mode = COMMAND_EXEC,
5650                 .help = "remove breakpoint",
5651                 .usage = "address",
5652         },
5653         {
5654                 .name = "wp",
5655                 .handler = handle_wp_command,
5656                 .mode = COMMAND_EXEC,
5657                 .help = "list (no params) or create watchpoints",
5658                 .usage = "[address length [('r'|'w'|'a') value [mask]]]",
5659         },
5660         {
5661                 .name = "rwp",
5662                 .handler = handle_rwp_command,
5663                 .mode = COMMAND_EXEC,
5664                 .help = "remove watchpoint",
5665                 .usage = "address",
5666         },
5667         {
5668                 .name = "load_image",
5669                 .handler = handle_load_image_command,
5670                 .mode = COMMAND_EXEC,
5671                 .usage = "filename address ['bin'|'ihex'|'elf'|'s19'] "
5672                         "[min_address] [max_length]",
5673         },
5674         {
5675                 .name = "dump_image",
5676                 .handler = handle_dump_image_command,
5677                 .mode = COMMAND_EXEC,
5678                 .usage = "filename address size",
5679         },
5680         {
5681                 .name = "verify_image",
5682                 .handler = handle_verify_image_command,
5683                 .mode = COMMAND_EXEC,
5684                 .usage = "filename [offset [type]]",
5685         },
5686         {
5687                 .name = "test_image",
5688                 .handler = handle_test_image_command,
5689                 .mode = COMMAND_EXEC,
5690                 .usage = "filename [offset [type]]",
5691         },
5692         {
5693                 .name = "mem2array",
5694                 .mode = COMMAND_EXEC,
5695                 .jim_handler = jim_mem2array,
5696                 .help = "read 8/16/32 bit memory and return as a TCL array "
5697                         "for script processing",
5698                 .usage = "arrayname bitwidth address count",
5699         },
5700         {
5701                 .name = "array2mem",
5702                 .mode = COMMAND_EXEC,
5703                 .jim_handler = jim_array2mem,
5704                 .help = "convert a TCL array to memory locations "
5705                         "and write the 8/16/32 bit values",
5706                 .usage = "arrayname bitwidth address count",
5707         },
5708         {
5709                 .name = "reset_nag",
5710                 .handler = handle_target_reset_nag,
5711                 .mode = COMMAND_ANY,
5712                 .help = "Nag after each reset about options that could have been "
5713                                 "enabled to improve performance. ",
5714                 .usage = "['enable'|'disable']",
5715         },
5716         {
5717                 .name = "ps",
5718                 .handler = handle_ps_command,
5719                 .mode = COMMAND_EXEC,
5720                 .help = "list all tasks ",
5721                 .usage = " ",
5722         },
5723
5724         COMMAND_REGISTRATION_DONE
5725 };
5726 static int target_register_user_commands(struct command_context *cmd_ctx)
5727 {
5728         int retval = ERROR_OK;
5729         retval = target_request_register_commands(cmd_ctx);
5730         if (retval != ERROR_OK)
5731                 return retval;
5732
5733         retval = trace_register_commands(cmd_ctx);
5734         if (retval != ERROR_OK)
5735                 return retval;
5736
5737
5738         return register_commands(cmd_ctx, NULL, target_exec_command_handlers);
5739 }