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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008, Duane Ellis                                       *
   9  *   openocd@duaneeellis.com                                               *
  10  *                                                                         *
  11  *   part of this file is taken from libcli (libcli.sourceforge.net)       *
  12  *   Copyright (C) David Parrish (david@dparrish.com)                      *
  13  *                                                                         *
  14  *   This program is free software; you can redistribute it and/or modify  *
  15  *   it under the terms of the GNU General Public License as published by  *
  16  *   the Free Software Foundation; either version 2 of the License, or     *
  17  *   (at your option) any later version.                                   *
  18  *                                                                         *
  19  *   This program is distributed in the hope that it will be useful,       *
  20  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  21  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  22  *   GNU General Public License for more details.                          *
  23  *                                                                         *
  24  *   You should have received a copy of the GNU General Public License     *
  25  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  26  ***************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31
  32 /* see Embedded-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
  33 #define JIM_EMBEDDED
  34
  35 /* @todo the inclusion of target.h here is a layering violation */
  36 #include <jtag/jtag.h>
  37 #include <target/target.h>
  38 #include "command.h"
  39 #include "configuration.h"
  40 #include "log.h"
  41 #include "time_support.h"
  42 #include "jim-eventloop.h"
  43
  44 /* nice short description of source file */
  45 #define __THIS__FILE__ "command.c"
  46
  47 static int run_command(struct command_context *context,
  48                 struct command *c, const char *words[], unsigned num_words);
  49
  50 struct log_capture_state {
  51         Jim_Interp *interp;
  52         Jim_Obj *output;
  53 };
  54
  55 static void tcl_output(void *privData, const char *file, unsigned line,
  56         const char *function, const char *string)
  57 {
  58         struct log_capture_state *state = privData;
  59         Jim_AppendString(state->interp, state->output, string, strlen(string));
  60 }
  61
  62 static struct log_capture_state *command_log_capture_start(Jim_Interp *interp)
  63 {
  64         /* capture log output and return it. A garbage collect can
  65          * happen, so we need a reference count to this object */
  66         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
  67         if (NULL == tclOutput)
  68                 return NULL;
  69
  70         struct log_capture_state *state = malloc(sizeof(*state));
  71         if (NULL == state)
  72                 return NULL;
  73
  74         state->interp = interp;
  75         Jim_IncrRefCount(tclOutput);
  76         state->output = tclOutput;
  77
  78         log_add_callback(tcl_output, state);
  79
  80         return state;
  81 }
  82
  83 /* Classic openocd commands provide progress output which we
  84  * will capture and return as a Tcl return value.
  85  *
  86  * However, if a non-openocd command has been invoked, then it
  87  * makes sense to return the tcl return value from that command.
  88  *
  89  * The tcl return value is empty for openocd commands that provide
  90  * progress output.
  91  *
  92  * Therefore we set the tcl return value only if we actually
  93  * captured output.
  94  */
  95 static void command_log_capture_finish(struct log_capture_state *state)
  96 {
  97         if (NULL == state)
  98                 return;
  99
 100         log_remove_callback(tcl_output, state);
 101
 102         int length;
 103         Jim_GetString(state->output, &length);
 104
 105         if (length > 0)
 106                 Jim_SetResult(state->interp, state->output);
 107         else {
 108                 /* No output captured, use tcl return value (which could
 109                  * be empty too). */
 110         }
 111         Jim_DecrRefCount(state->interp, state->output);
 112
 113         free(state);
 114 }
 115
 116 static int command_retval_set(Jim_Interp *interp, int retval)
 117 {
 118         int *return_retval = Jim_GetAssocData(interp, "retval");
 119         if (return_retval != NULL)
 120                 *return_retval = retval;
 121
 122         return (retval == ERROR_OK) ? JIM_OK : retval;
 123 }
 124
 125 extern struct command_context *global_cmd_ctx;
 126
 127 /* dump a single line to the log for the command.
 128  * Do nothing in case we are not at debug level 3 */
 129 void script_debug(Jim_Interp *interp, const char *name,
 130         unsigned argc, Jim_Obj * const *argv)
 131 {
 132         if (debug_level < LOG_LVL_DEBUG)
 133                 return;
 134
 135         char *dbg = alloc_printf("command - %s", name);
 136         for (unsigned i = 0; i < argc; i++) {
 137                 int len;
 138                 const char *w = Jim_GetString(argv[i], &len);
 139                 char *t = alloc_printf("%s %s", dbg, w);
 140                 free(dbg);
 141                 dbg = t;
 142         }
 143         LOG_DEBUG("%s", dbg);
 144         free(dbg);
 145 }
 146
 147 static void script_command_args_free(char **words, unsigned nwords)
 148 {
 149         for (unsigned i = 0; i < nwords; i++)
 150                 free(words[i]);
 151         free(words);
 152 }
 153
 154 static char **script_command_args_alloc(
 155         unsigned argc, Jim_Obj * const *argv, unsigned *nwords)
 156 {
 157         char **words = malloc(argc * sizeof(char *));
 158         if (NULL == words)
 159                 return NULL;
 160
 161         unsigned i;
 162         for (i = 0; i < argc; i++) {
 163                 int len;
 164                 const char *w = Jim_GetString(argv[i], &len);
 165                 words[i] = strdup(w);
 166                 if (words[i] == NULL) {
 167                         script_command_args_free(words, i);
 168                         return NULL;
 169                 }
 170         }
 171         *nwords = i;
 172         return words;
 173 }
 174
 175 struct command_context *current_command_context(Jim_Interp *interp)
 176 {
 177         /* grab the command context from the associated data */
 178         struct command_context *cmd_ctx = Jim_GetAssocData(interp, "context");
 179         if (NULL == cmd_ctx) {
 180                 /* Tcl can invoke commands directly instead of via command_run_line(). This would
 181                  * happen when the Jim Tcl interpreter is provided by eCos or if we are running
 182                  * commands in a startup script.
 183                  *
 184                  * A telnet or gdb server would provide a non-default command context to
 185                  * handle piping of error output, have a separate current target, etc.
 186                  */
 187                 cmd_ctx = global_cmd_ctx;
 188         }
 189         return cmd_ctx;
 190 }
 191
 192 static int script_command_run(Jim_Interp *interp,
 193         int argc, Jim_Obj * const *argv, struct command *c)
 194 {
 195         target_call_timer_callbacks_now();
 196         LOG_USER_N("%s", "");   /* Keep GDB connection alive*/
 197
 198         unsigned nwords;
 199         char **words = script_command_args_alloc(argc, argv, &nwords);
 200         if (NULL == words)
 201                 return JIM_ERR;
 202
 203         struct command_context *cmd_ctx = current_command_context(interp);
 204         int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
 205
 206         script_command_args_free(words, nwords);
 207         return command_retval_set(interp, retval);
 208 }
 209
 210 static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 211 {
 212         /* the private data is stashed in the interp structure */
 213
 214         struct command *c = interp->cmdPrivData;
 215         assert(c);
 216         script_debug(interp, c->name, argc, argv);
 217         return script_command_run(interp, argc, argv, c);
 218 }
 219
 220 static struct command *command_root(struct command *c)
 221 {
 222         while (NULL != c->parent)
 223                 c = c->parent;
 224         return c;
 225 }
 226
 227 /**
 228  * Find a command by name from a list of commands.
 229  * @returns Returns the named command if it exists in the list.
 230  * Returns NULL otherwise.
 231  */
 232 static struct command *command_find(struct command *head, const char *name)
 233 {
 234         for (struct command *cc = head; cc; cc = cc->next) {
 235                 if (strcmp(cc->name, name) == 0)
 236                         return cc;
 237         }
 238         return NULL;
 239 }
 240
 241 struct command *command_find_in_context(struct command_context *cmd_ctx,
 242         const char *name)
 243 {
 244         return command_find(cmd_ctx->commands, name);
 245 }
 246 struct command *command_find_in_parent(struct command *parent,
 247         const char *name)
 248 {
 249         return command_find(parent->children, name);
 250 }
 251
 252 /**
 253  * Add the command into the linked list, sorted by name.
 254  * @param head Address to head of command list pointer, which may be
 255  * updated if @c c gets inserted at the beginning of the list.
 256  * @param c The command to add to the list pointed to by @c head.
 257  */
 258 static void command_add_child(struct command **head, struct command *c)
 259 {
 260         assert(head);
 261         if (NULL == *head) {
 262                 *head = c;
 263                 return;
 264         }
 265
 266         while ((*head)->next && (strcmp(c->name, (*head)->name) > 0))
 267                 head = &(*head)->next;
 268
 269         if (strcmp(c->name, (*head)->name) > 0) {
 270                 c->next = (*head)->next;
 271                 (*head)->next = c;
 272         } else {
 273                 c->next = *head;
 274                 *head = c;
 275         }
 276 }
 277
 278 static struct command **command_list_for_parent(
 279         struct command_context *cmd_ctx, struct command *parent)
 280 {
 281         return parent ? &parent->children : &cmd_ctx->commands;
 282 }
 283
 284 static void command_free(struct command *c)
 285 {
 286         /** @todo if command has a handler, unregister its jim command! */
 287
 288         while (NULL != c->children) {
 289                 struct command *tmp = c->children;
 290                 c->children = tmp->next;
 291                 command_free(tmp);
 292         }
 293
 294         free(c->name);
 295         free(c->help);
 296         free(c->usage);
 297         free(c);
 298 }
 299
 300 static struct command *command_new(struct command_context *cmd_ctx,
 301         struct command *parent, const struct command_registration *cr)
 302 {
 303         assert(cr->name);
 304
 305         /*
 306          * If it is a non-jim command with no .usage specified,
 307          * log an error.
 308          *
 309          * strlen(.usage) == 0 means that the command takes no
 310          * arguments.
 311         */
 312         if ((cr->jim_handler == NULL) && (cr->usage == NULL)) {
 313                 LOG_ERROR("BUG: command '%s%s%s' does not have the "
 314                         "'.usage' field filled out",
 315                         parent && parent->name ? parent->name : "",
 316                         parent && parent->name ? " " : "",
 317                         cr->name);
 318         }
 319
 320         struct command *c = calloc(1, sizeof(struct command));
 321         if (NULL == c)
 322                 return NULL;
 323
 324         c->name = strdup(cr->name);
 325         if (cr->help)
 326                 c->help = strdup(cr->help);
 327         if (cr->usage)
 328                 c->usage = strdup(cr->usage);
 329
 330         if (!c->name || (cr->help && !c->help) || (cr->usage && !c->usage))
 331                 goto command_new_error;
 332
 333         c->parent = parent;
 334         c->handler = cr->handler;
 335         c->jim_handler = cr->jim_handler;
 336         c->jim_handler_data = cr->jim_handler_data;
 337         c->mode = cr->mode;
 338
 339         command_add_child(command_list_for_parent(cmd_ctx, parent), c);
 340
 341         return c;
 342
 343 command_new_error:
 344         command_free(c);
 345         return NULL;
 346 }
 347
 348 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 349
 350 static int register_command_handler(struct command_context *cmd_ctx,
 351         struct command *c)
 352 {
 353         Jim_Interp *interp = cmd_ctx->interp;
 354
 355         LOG_DEBUG("registering '%s'...", c->name);
 356
 357         Jim_CmdProc *func = c->handler ? &script_command : &command_unknown;
 358         int retval = Jim_CreateCommand(interp, c->name, func, c, NULL);
 359
 360         return retval;
 361 }
 362
 363 struct command *register_command(struct command_context *context,
 364         struct command *parent, const struct command_registration *cr)
 365 {
 366         if (!context || !cr->name)
 367                 return NULL;
 368
 369         const char *name = cr->name;
 370         struct command **head = command_list_for_parent(context, parent);
 371         struct command *c = command_find(*head, name);
 372         if (NULL != c) {
 373                 /* TODO: originally we treated attempting to register a cmd twice as an error
 374                  * Sometimes we need this behaviour, such as with flash banks.
 375                  * http://www.mail-archive.com/openocd-development@lists.berlios.de/msg11152.html */
 376                 LOG_DEBUG("command '%s' is already registered in '%s' context",
 377                         name, parent ? parent->name : "<global>");
 378                 return c;
 379         }
 380
 381         c = command_new(context, parent, cr);
 382         if (NULL == c)
 383                 return NULL;
 384
 385         int retval = ERROR_OK;
 386         if (NULL != cr->jim_handler && NULL == parent) {
 387                 retval = Jim_CreateCommand(context->interp, cr->name,
 388                                 cr->jim_handler, cr->jim_handler_data, NULL);
 389         } else if (NULL != cr->handler || NULL != parent)
 390                 retval = register_command_handler(context, command_root(c));
 391
 392         if (ERROR_OK != retval) {
 393                 unregister_command(context, parent, name);
 394                 c = NULL;
 395         }
 396         return c;
 397 }
 398
 399 int register_commands(struct command_context *cmd_ctx, struct command *parent,
 400         const struct command_registration *cmds)
 401 {
 402         int retval = ERROR_OK;
 403         unsigned i;
 404         for (i = 0; cmds[i].name || cmds[i].chain; i++) {
 405                 const struct command_registration *cr = cmds + i;
 406
 407                 struct command *c = NULL;
 408                 if (NULL != cr->name) {
 409                         c = register_command(cmd_ctx, parent, cr);
 410                         if (NULL == c) {
 411                                 retval = ERROR_FAIL;
 412                                 break;
 413                         }
 414                 }
 415                 if (NULL != cr->chain) {
 416                         struct command *p = c ? : parent;
 417                         retval = register_commands(cmd_ctx, p, cr->chain);
 418                         if (ERROR_OK != retval)
 419                                 break;
 420                 }
 421         }
 422         if (ERROR_OK != retval) {
 423                 for (unsigned j = 0; j < i; j++)
 424                         unregister_command(cmd_ctx, parent, cmds[j].name);
 425         }
 426         return retval;
 427 }
 428
 429 int unregister_all_commands(struct command_context *context,
 430         struct command *parent)
 431 {
 432         if (context == NULL)
 433                 return ERROR_OK;
 434
 435         struct command **head = command_list_for_parent(context, parent);
 436         while (NULL != *head) {
 437                 struct command *tmp = *head;
 438                 *head = tmp->next;
 439                 command_free(tmp);
 440         }
 441
 442         return ERROR_OK;
 443 }
 444
 445 int unregister_command(struct command_context *context,
 446         struct command *parent, const char *name)
 447 {
 448         if ((!context) || (!name))
 449                 return ERROR_COMMAND_SYNTAX_ERROR;
 450
 451         struct command *p = NULL;
 452         struct command **head = command_list_for_parent(context, parent);
 453         for (struct command *c = *head; NULL != c; p = c, c = c->next) {
 454                 if (strcmp(name, c->name) != 0)
 455                         continue;
 456
 457                 if (p)
 458                         p->next = c->next;
 459                 else
 460                         *head = c->next;
 461
 462                 command_free(c);
 463                 return ERROR_OK;
 464         }
 465
 466         return ERROR_OK;
 467 }
 468
 469 void command_set_handler_data(struct command *c, void *p)
 470 {
 471         if (NULL != c->handler || NULL != c->jim_handler)
 472                 c->jim_handler_data = p;
 473         for (struct command *cc = c->children; NULL != cc; cc = cc->next)
 474                 command_set_handler_data(cc, p);
 475 }
 476
 477 void command_output_text(struct command_context *context, const char *data)
 478 {
 479         if (context && context->output_handler && data)
 480                 context->output_handler(context, data);
 481 }
 482
 483 void command_print_sameline(struct command_invocation *cmd, const char *format, ...)
 484 {
 485         char *string;
 486
 487         va_list ap;
 488         va_start(ap, format);
 489
 490         string = alloc_vprintf(format, ap);
 491         if (string != NULL && cmd) {
 492                 /* we want this collected in the log + we also want to pick it up as a tcl return
 493                  * value.
 494                  *
 495                  * The latter bit isn't precisely neat, but will do for now.
 496                  */
 497                 Jim_AppendString(cmd->ctx->interp, cmd->output, string, -1);
 498                 /* We already printed it above
 499                  * command_output_text(context, string); */
 500                 free(string);
 501         }
 502
 503         va_end(ap);
 504 }
 505
 506 void command_print(struct command_invocation *cmd, const char *format, ...)
 507 {
 508         char *string;
 509
 510         va_list ap;
 511         va_start(ap, format);
 512
 513         string = alloc_vprintf(format, ap);
 514         if (string != NULL && cmd) {
 515                 strcat(string, "\n");   /* alloc_vprintf guaranteed the buffer to be at least one
 516                                          *char longer */
 517                 /* we want this collected in the log + we also want to pick it up as a tcl return
 518                  * value.
 519                  *
 520                  * The latter bit isn't precisely neat, but will do for now.
 521                  */
 522                 Jim_AppendString(cmd->ctx->interp, cmd->output, string, -1);
 523                 /* We already printed it above
 524                  * command_output_text(context, string); */
 525                 free(string);
 526         }
 527
 528         va_end(ap);
 529 }
 530
 531 static char *__command_name(struct command *c, char delim, unsigned extra)
 532 {
 533         char *name;
 534         unsigned len = strlen(c->name);
 535         if (NULL == c->parent) {
 536                 /* allocate enough for the name, child names, and '\0' */
 537                 name = malloc(len + extra + 1);
 538                 if (!name) {
 539                         LOG_ERROR("Out of memory");
 540                         return NULL;
 541                 }
 542                 strcpy(name, c->name);
 543         } else {
 544                 /* parent's extra must include both the space and name */
 545                 name = __command_name(c->parent, delim, 1 + len + extra);
 546                 char dstr[2] = { delim, 0 };
 547                 strcat(name, dstr);
 548                 strcat(name, c->name);
 549         }
 550         return name;
 551 }
 552
 553 char *command_name(struct command *c, char delim)
 554 {
 555         return __command_name(c, delim, 0);
 556 }
 557
 558 static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
 559 {
 560         if (c->mode == COMMAND_ANY || c->mode == cmd_ctx->mode)
 561                 return true;
 562
 563         /* Many commands may be run only before/after 'init' */
 564         const char *when;
 565         switch (c->mode) {
 566                 case COMMAND_CONFIG:
 567                         when = "before";
 568                         break;
 569                 case COMMAND_EXEC:
 570                         when = "after";
 571                         break;
 572                 /* handle the impossible with humor; it guarantees a bug report! */
 573                 default:
 574                         when = "if Cthulhu is summoned by";
 575                         break;
 576         }
 577         char *full_name = command_name(c, ' ');
 578         LOG_ERROR("The '%s' command must be used %s 'init'.",
 579                         full_name ? full_name : c->name, when);
 580         free(full_name);
 581         return false;
 582 }
 583
 584 static int run_command(struct command_context *context,
 585         struct command *c, const char *words[], unsigned num_words)
 586 {
 587         if (!command_can_run(context, c))
 588                 return ERROR_FAIL;
 589
 590         struct command_invocation cmd = {
 591                 .ctx = context,
 592                 .current = c,
 593                 .name = c->name,
 594                 .argc = num_words - 1,
 595                 .argv = words + 1,
 596         };
 597         /* Black magic of overridden current target:
 598          * If the command we are going to handle has a target prefix,
 599          * override the current target temporarily for the time
 600          * of processing the command.
 601          * current_target_override is used also for event handlers
 602          * therefore we prevent touching it if command has no prefix.
 603          * Previous override is saved and restored back to ensure
 604          * correct work when run_command() is re-entered. */
 605         struct target *saved_target_override = context->current_target_override;
 606         if (c->jim_handler_data)
 607                 context->current_target_override = c->jim_handler_data;
 608
 609         cmd.output = Jim_NewEmptyStringObj(context->interp);
 610         Jim_IncrRefCount(cmd.output);
 611
 612         int retval = c->handler(&cmd);
 613
 614         if (c->jim_handler_data)
 615                 context->current_target_override = saved_target_override;
 616
 617         if (retval == ERROR_COMMAND_SYNTAX_ERROR) {
 618                 /* Print help for command */
 619                 char *full_name = command_name(c, ' ');
 620                 if (NULL != full_name) {
 621                         command_run_linef(context, "usage %s", full_name);
 622                         free(full_name);
 623                 }
 624         } else if (retval == ERROR_COMMAND_CLOSE_CONNECTION) {
 625                 /* just fall through for a shutdown request */
 626         } else if (retval != ERROR_OK) {
 627                 /* we do not print out an error message because the command *should*
 628                  * have printed out an error
 629                  */
 630                 char *full_name = command_name(c, ' ');
 631                 LOG_DEBUG("Command '%s' failed with error code %d",
 632                                         full_name ? full_name : c->name, retval);
 633                 free(full_name);
 634         } else {
 635                 /* Use the command output as the Tcl result */
 636                 Jim_SetResult(context->interp, cmd.output);
 637         }
 638         Jim_DecrRefCount(context->interp, cmd.output);
 639
 640         return retval;
 641 }
 642
 643 int command_run_line(struct command_context *context, char *line)
 644 {
 645         /* all the parent commands have been registered with the interpreter
 646          * so, can just evaluate the line as a script and check for
 647          * results
 648          */
 649         /* run the line thru a script engine */
 650         int retval = ERROR_FAIL;
 651         int retcode;
 652         /* Beware! This code needs to be reentrant. It is also possible
 653          * for OpenOCD commands to be invoked directly from Tcl. This would
 654          * happen when the Jim Tcl interpreter is provided by eCos for
 655          * instance.
 656          */
 657         context->current_target_override = NULL;
 658
 659         Jim_Interp *interp = context->interp;
 660         Jim_DeleteAssocData(interp, "context");
 661         retcode = Jim_SetAssocData(interp, "context", NULL, context);
 662         if (retcode == JIM_OK) {
 663                 /* associated the return value */
 664                 Jim_DeleteAssocData(interp, "retval");
 665                 retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
 666                 if (retcode == JIM_OK) {
 667                         retcode = Jim_Eval_Named(interp, line, 0, 0);
 668
 669                         Jim_DeleteAssocData(interp, "retval");
 670                 }
 671                 Jim_DeleteAssocData(interp, "context");
 672         }
 673         if (retcode == JIM_OK) {
 674                 const char *result;
 675                 int reslen;
 676
 677                 result = Jim_GetString(Jim_GetResult(interp), &reslen);
 678                 if (reslen > 0) {
 679                         command_output_text(context, result);
 680                         command_output_text(context, "\n");
 681                 }
 682                 retval = ERROR_OK;
 683         } else if (retcode == JIM_EXIT) {
 684                 /* ignore.
 685                  * exit(Jim_GetExitCode(interp)); */
 686         } else if (retcode == ERROR_COMMAND_CLOSE_CONNECTION) {
 687                 return retcode;
 688         } else {
 689                 Jim_MakeErrorMessage(interp);
 690                 /* error is broadcast */
 691                 LOG_USER("%s", Jim_GetString(Jim_GetResult(interp), NULL));
 692
 693                 if (retval == ERROR_OK) {
 694                         /* It wasn't a low level OpenOCD command that failed */
 695                         return ERROR_FAIL;
 696                 }
 697                 return retval;
 698         }
 699
 700         return retval;
 701 }
 702
 703 int command_run_linef(struct command_context *context, const char *format, ...)
 704 {
 705         int retval = ERROR_FAIL;
 706         char *string;
 707         va_list ap;
 708         va_start(ap, format);
 709         string = alloc_vprintf(format, ap);
 710         if (string != NULL) {
 711                 retval = command_run_line(context, string);
 712                 free(string);
 713         }
 714         va_end(ap);
 715         return retval;
 716 }
 717
 718 void command_set_output_handler(struct command_context *context,
 719         command_output_handler_t output_handler, void *priv)
 720 {
 721         context->output_handler = output_handler;
 722         context->output_handler_priv = priv;
 723 }
 724
 725 struct command_context *copy_command_context(struct command_context *context)
 726 {
 727         struct command_context *copy_context = malloc(sizeof(struct command_context));
 728
 729         *copy_context = *context;
 730
 731         return copy_context;
 732 }
 733
 734 void command_done(struct command_context *cmd_ctx)
 735 {
 736         if (NULL == cmd_ctx)
 737                 return;
 738
 739         free(cmd_ctx);
 740 }
 741
 742 /* find full path to file */
 743 static int jim_find(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 744 {
 745         if (argc != 2)
 746                 return JIM_ERR;
 747         const char *file = Jim_GetString(argv[1], NULL);
 748         char *full_path = find_file(file);
 749         if (full_path == NULL)
 750                 return JIM_ERR;
 751         Jim_Obj *result = Jim_NewStringObj(interp, full_path, strlen(full_path));
 752         free(full_path);
 753
 754         Jim_SetResult(interp, result);
 755         return JIM_OK;
 756 }
 757
 758 COMMAND_HANDLER(jim_echo)
 759 {
 760         if (CMD_ARGC == 2 && !strcmp(CMD_ARGV[0], "-n")) {
 761                 LOG_USER_N("%s", CMD_ARGV[1]);
 762                 return JIM_OK;
 763         }
 764         if (CMD_ARGC != 1)
 765                 return JIM_ERR;
 766         LOG_USER("%s", CMD_ARGV[0]);
 767         return JIM_OK;
 768 }
 769
 770 /* Capture progress output and return as tcl return value. If the
 771  * progress output was empty, return tcl return value.
 772  */
 773 static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 774 {
 775         if (argc != 2)
 776                 return JIM_ERR;
 777
 778         struct log_capture_state *state = command_log_capture_start(interp);
 779
 780         /* disable polling during capture. This avoids capturing output
 781          * from polling.
 782          *
 783          * This is necessary in order to avoid accidentally getting a non-empty
 784          * string for tcl fn's.
 785          */
 786         bool save_poll = jtag_poll_get_enabled();
 787
 788         jtag_poll_set_enabled(false);
 789
 790         const char *str = Jim_GetString(argv[1], NULL);
 791         int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
 792
 793         jtag_poll_set_enabled(save_poll);
 794
 795         command_log_capture_finish(state);
 796
 797         return retcode;
 798 }
 799
 800 static COMMAND_HELPER(command_help_find, struct command *head,
 801         struct command **out)
 802 {
 803         if (0 == CMD_ARGC)
 804                 return ERROR_COMMAND_SYNTAX_ERROR;
 805         *out = command_find(head, CMD_ARGV[0]);
 806         if (NULL == *out)
 807                 return ERROR_COMMAND_SYNTAX_ERROR;
 808         if (--CMD_ARGC == 0)
 809                 return ERROR_OK;
 810         CMD_ARGV++;
 811         return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
 812 }
 813
 814 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
 815         bool show_help, const char *cmd_match);
 816
 817 static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
 818         bool show_help, const char *cmd_match)
 819 {
 820         for (struct command *c = head; NULL != c; c = c->next)
 821                 CALL_COMMAND_HANDLER(command_help_show, c, n, show_help, cmd_match);
 822         return ERROR_OK;
 823 }
 824
 825 #define HELP_LINE_WIDTH(_n) (int)(76 - (2 * _n))
 826
 827 static void command_help_show_indent(unsigned n)
 828 {
 829         for (unsigned i = 0; i < n; i++)
 830                 LOG_USER_N("  ");
 831 }
 832 static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
 833 {
 834         const char *cp = str, *last = str;
 835         while (*cp) {
 836                 const char *next = last;
 837                 do {
 838                         cp = next;
 839                         do {
 840                                 next++;
 841                         } while (*next != ' ' && *next != '\t' && *next != '\0');
 842                 } while ((next - last < HELP_LINE_WIDTH(n)) && *next != '\0');
 843                 if (next - last < HELP_LINE_WIDTH(n))
 844                         cp = next;
 845                 command_help_show_indent(n);
 846                 LOG_USER("%.*s", (int)(cp - last), last);
 847                 last = cp + 1;
 848                 n = n2;
 849         }
 850 }
 851
 852 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
 853         bool show_help, const char *cmd_match)
 854 {
 855         char *cmd_name = command_name(c, ' ');
 856         if (NULL == cmd_name)
 857                 return ERROR_FAIL;
 858
 859         /* If the match string occurs anywhere, we print out
 860          * stuff for this command. */
 861         bool is_match = (strstr(cmd_name, cmd_match) != NULL) ||
 862                 ((c->usage != NULL) && (strstr(c->usage, cmd_match) != NULL)) ||
 863                 ((c->help != NULL) && (strstr(c->help, cmd_match) != NULL));
 864
 865         if (is_match) {
 866                 command_help_show_indent(n);
 867                 LOG_USER_N("%s", cmd_name);
 868         }
 869         free(cmd_name);
 870
 871         if (is_match) {
 872                 if (c->usage && strlen(c->usage) > 0) {
 873                         LOG_USER_N(" ");
 874                         command_help_show_wrap(c->usage, 0, n + 5);
 875                 } else
 876                         LOG_USER_N("\n");
 877         }
 878
 879         if (is_match && show_help) {
 880                 char *msg;
 881
 882                 /* Normal commands are runtime-only; highlight exceptions */
 883                 if (c->mode != COMMAND_EXEC) {
 884                         const char *stage_msg = "";
 885
 886                         switch (c->mode) {
 887                                 case COMMAND_CONFIG:
 888                                         stage_msg = " (configuration command)";
 889                                         break;
 890                                 case COMMAND_ANY:
 891                                         stage_msg = " (command valid any time)";
 892                                         break;
 893                                 default:
 894                                         stage_msg = " (?mode error?)";
 895                                         break;
 896                         }
 897                         msg = alloc_printf("%s%s", c->help ? : "", stage_msg);
 898                 } else
 899                         msg = alloc_printf("%s", c->help ? : "");
 900
 901                 if (NULL != msg) {
 902                         command_help_show_wrap(msg, n + 3, n + 3);
 903                         free(msg);
 904                 } else
 905                         return -ENOMEM;
 906         }
 907
 908         if (++n > 5) {
 909                 LOG_ERROR("command recursion exceeded");
 910                 return ERROR_FAIL;
 911         }
 912
 913         return CALL_COMMAND_HANDLER(command_help_show_list,
 914                 c->children, n, show_help, cmd_match);
 915 }
 916
 917 COMMAND_HANDLER(handle_help_command)
 918 {
 919         bool full = strcmp(CMD_NAME, "help") == 0;
 920         int retval;
 921         struct command *c = CMD_CTX->commands;
 922         char *cmd_match = NULL;
 923
 924         if (CMD_ARGC == 0)
 925                 cmd_match = "";
 926         else if (CMD_ARGC >= 1) {
 927                 unsigned i;
 928
 929                 for (i = 0; i < CMD_ARGC; ++i) {
 930                         if (NULL != cmd_match) {
 931                                 char *prev = cmd_match;
 932
 933                                 cmd_match = alloc_printf("%s %s", cmd_match, CMD_ARGV[i]);
 934                                 free(prev);
 935                                 if (NULL == cmd_match) {
 936                                         LOG_ERROR("unable to build search string");
 937                                         return -ENOMEM;
 938                                 }
 939                         } else {
 940                                 cmd_match = alloc_printf("%s", CMD_ARGV[i]);
 941                                 if (NULL == cmd_match) {
 942                                         LOG_ERROR("unable to build search string");
 943                                         return -ENOMEM;
 944                                 }
 945                         }
 946                 }
 947         } else
 948                 return ERROR_COMMAND_SYNTAX_ERROR;
 949
 950         retval = CALL_COMMAND_HANDLER(command_help_show_list,
 951                         c, 0, full, cmd_match);
 952
 953         if (CMD_ARGC >= 1)
 954                 free(cmd_match);
 955         return retval;
 956 }
 957
 958 static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
 959         struct command *head, struct command **out)
 960 {
 961         if (0 == argc)
 962                 return argc;
 963         const char *cmd_name = Jim_GetString(argv[0], NULL);
 964         struct command *c = command_find(head, cmd_name);
 965         if (NULL == c)
 966                 return argc;
 967         *out = c;
 968         return command_unknown_find(--argc, ++argv, (*out)->children, out);
 969 }
 970
 971 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 972 {
 973         const char *cmd_name = Jim_GetString(argv[0], NULL);
 974         if (strcmp(cmd_name, "unknown") == 0) {
 975                 if (argc == 1)
 976                         return JIM_OK;
 977                 argc--;
 978                 argv++;
 979         }
 980         script_debug(interp, cmd_name, argc, argv);
 981
 982         struct command_context *cmd_ctx = current_command_context(interp);
 983         struct command *c = cmd_ctx->commands;
 984         int remaining = command_unknown_find(argc, argv, c, &c);
 985         /* if nothing could be consumed, then it's really an unknown command */
 986         if (remaining == argc) {
 987                 const char *cmd = Jim_GetString(argv[0], NULL);
 988                 LOG_ERROR("Unknown command:\n  %s", cmd);
 989                 return JIM_OK;
 990         }
 991
 992         Jim_Obj *const *start;
 993         unsigned count;
 994         if (c->handler || c->jim_handler) {
 995                 /* include the command name in the list */
 996                 count = remaining + 1;
 997                 start = argv + (argc - remaining - 1);
 998         } else {
 999                 c = command_find(cmd_ctx->commands, "usage");
1000                 if (NULL == c) {
1001                         LOG_ERROR("unknown command, but usage is missing too");
1002                         return JIM_ERR;
1003                 }
1004                 count = argc - remaining;
1005                 start = argv;
1006         }
1007         /* pass the command through to the intended handler */
1008         if (c->jim_handler) {
1009                 if (!command_can_run(cmd_ctx, c))
1010                         return JIM_ERR;
1011
1012                 interp->cmdPrivData = c->jim_handler_data;
1013                 return (*c->jim_handler)(interp, count, start);
1014         }
1015
1016         return script_command_run(interp, count, start, c);
1017 }
1018
1019 static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1020 {
1021         struct command_context *cmd_ctx = current_command_context(interp);
1022         enum command_mode mode;
1023
1024         if (argc > 1) {
1025                 struct command *c = cmd_ctx->commands;
1026                 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c);
1027                 /* if nothing could be consumed, then it's an unknown command */
1028                 if (remaining == argc - 1) {
1029                         Jim_SetResultString(interp, "unknown", -1);
1030                         return JIM_OK;
1031                 }
1032                 mode = c->mode;
1033         } else
1034                 mode = cmd_ctx->mode;
1035
1036         const char *mode_str;
1037         switch (mode) {
1038                 case COMMAND_ANY:
1039                         mode_str = "any";
1040                         break;
1041                 case COMMAND_CONFIG:
1042                         mode_str = "config";
1043                         break;
1044                 case COMMAND_EXEC:
1045                         mode_str = "exec";
1046                         break;
1047                 default:
1048                         mode_str = "unknown";
1049                         break;
1050         }
1051         Jim_SetResultString(interp, mode_str, -1);
1052         return JIM_OK;
1053 }
1054
1055 int help_add_command(struct command_context *cmd_ctx, struct command *parent,
1056         const char *cmd_name, const char *help_text, const char *usage)
1057 {
1058         struct command **head = command_list_for_parent(cmd_ctx, parent);
1059         struct command *nc = command_find(*head, cmd_name);
1060         if (NULL == nc) {
1061                 /* add a new command with help text */
1062                 struct command_registration cr = {
1063                         .name = cmd_name,
1064                         .mode = COMMAND_ANY,
1065                         .help = help_text,
1066                         .usage = usage ? : "",
1067                 };
1068                 nc = register_command(cmd_ctx, parent, &cr);
1069                 if (NULL == nc) {
1070                         LOG_ERROR("failed to add '%s' help text", cmd_name);
1071                         return ERROR_FAIL;
1072                 }
1073                 LOG_DEBUG("added '%s' help text", cmd_name);
1074                 return ERROR_OK;
1075         }
1076         if (help_text) {
1077                 bool replaced = false;
1078                 if (nc->help) {
1079                         free(nc->help);
1080                         replaced = true;
1081                 }
1082                 nc->help = strdup(help_text);
1083                 if (replaced)
1084                         LOG_INFO("replaced existing '%s' help", cmd_name);
1085                 else
1086                         LOG_DEBUG("added '%s' help text", cmd_name);
1087         }
1088         if (usage) {
1089                 bool replaced = false;
1090                 if (nc->usage) {
1091                         if (*nc->usage)
1092                                 replaced = true;
1093                         free(nc->usage);
1094                 }
1095                 nc->usage = strdup(usage);
1096                 if (replaced)
1097                         LOG_INFO("replaced existing '%s' usage", cmd_name);
1098                 else
1099                         LOG_DEBUG("added '%s' usage text", cmd_name);
1100         }
1101         return ERROR_OK;
1102 }
1103
1104 COMMAND_HANDLER(handle_help_add_command)
1105 {
1106         if (CMD_ARGC < 2) {
1107                 LOG_ERROR("%s: insufficient arguments", CMD_NAME);
1108                 return ERROR_COMMAND_SYNTAX_ERROR;
1109         }
1110
1111         /* save help text and remove it from argument list */
1112         const char *str = CMD_ARGV[--CMD_ARGC];
1113         const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
1114         const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
1115         if (!help && !usage) {
1116                 LOG_ERROR("command name '%s' is unknown", CMD_NAME);
1117                 return ERROR_COMMAND_SYNTAX_ERROR;
1118         }
1119         /* likewise for the leaf command name */
1120         const char *cmd_name = CMD_ARGV[--CMD_ARGC];
1121
1122         struct command *c = NULL;
1123         if (CMD_ARGC > 0) {
1124                 c = CMD_CTX->commands;
1125                 int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
1126                 if (ERROR_OK != retval)
1127                         return retval;
1128         }
1129         return help_add_command(CMD_CTX, c, cmd_name, help, usage);
1130 }
1131
1132 /* sleep command sleeps for <n> milliseconds
1133  * this is useful in target startup scripts
1134  */
1135 COMMAND_HANDLER(handle_sleep_command)
1136 {
1137         bool busy = false;
1138         if (CMD_ARGC == 2) {
1139                 if (strcmp(CMD_ARGV[1], "busy") == 0)
1140                         busy = true;
1141                 else
1142                         return ERROR_COMMAND_SYNTAX_ERROR;
1143         } else if (CMD_ARGC < 1 || CMD_ARGC > 2)
1144                 return ERROR_COMMAND_SYNTAX_ERROR;
1145
1146         unsigned long duration = 0;
1147         int retval = parse_ulong(CMD_ARGV[0], &duration);
1148         if (ERROR_OK != retval)
1149                 return retval;
1150
1151         if (!busy) {
1152                 int64_t then = timeval_ms();
1153                 while (timeval_ms() - then < (int64_t)duration) {
1154                         target_call_timer_callbacks_now();
1155                         usleep(1000);
1156                 }
1157         } else
1158                 busy_sleep(duration);
1159
1160         return ERROR_OK;
1161 }
1162
1163 static const struct command_registration command_subcommand_handlers[] = {
1164         {
1165                 .name = "mode",
1166                 .mode = COMMAND_ANY,
1167                 .jim_handler = jim_command_mode,
1168                 .usage = "[command_name ...]",
1169                 .help = "Returns the command modes allowed by a  command:"
1170                         "'any', 'config', or 'exec'.  If no command is"
1171                         "specified, returns the current command mode.  "
1172                         "Returns 'unknown' if an unknown command is given. "
1173                         "Command can be multiple tokens.",
1174         },
1175         COMMAND_REGISTRATION_DONE
1176 };
1177
1178 static const struct command_registration command_builtin_handlers[] = {
1179         {
1180                 .name = "echo",
1181                 .handler = jim_echo,
1182                 .mode = COMMAND_ANY,
1183                 .help = "Logs a message at \"user\" priority. "
1184                         "Output message to stdout. "
1185                         "Option \"-n\" suppresses trailing newline",
1186                 .usage = "[-n] string",
1187         },
1188         {
1189                 .name = "add_help_text",
1190                 .handler = handle_help_add_command,
1191                 .mode = COMMAND_ANY,
1192                 .help = "Add new command help text; "
1193                         "Command can be multiple tokens.",
1194                 .usage = "command_name helptext_string",
1195         },
1196         {
1197                 .name = "add_usage_text",
1198                 .handler = handle_help_add_command,
1199                 .mode = COMMAND_ANY,
1200                 .help = "Add new command usage text; "
1201                         "command can be multiple tokens.",
1202                 .usage = "command_name usage_string",
1203         },
1204         {
1205                 .name = "sleep",
1206                 .handler = handle_sleep_command,
1207                 .mode = COMMAND_ANY,
1208                 .help = "Sleep for specified number of milliseconds.  "
1209                         "\"busy\" will busy wait instead (avoid this).",
1210                 .usage = "milliseconds ['busy']",
1211         },
1212         {
1213                 .name = "help",
1214                 .handler = handle_help_command,
1215                 .mode = COMMAND_ANY,
1216                 .help = "Show full command help; "
1217                         "command can be multiple tokens.",
1218                 .usage = "[command_name]",
1219         },
1220         {
1221                 .name = "usage",
1222                 .handler = handle_help_command,
1223                 .mode = COMMAND_ANY,
1224                 .help = "Show basic command usage; "
1225                         "command can be multiple tokens.",
1226                 .usage = "[command_name]",
1227         },
1228         {
1229                 .name = "command",
1230                 .mode = COMMAND_ANY,
1231                 .help = "core command group (introspection)",
1232                 .chain = command_subcommand_handlers,
1233                 .usage = "",
1234         },
1235         COMMAND_REGISTRATION_DONE
1236 };
1237
1238 struct command_context *command_init(const char *startup_tcl, Jim_Interp *interp)
1239 {
1240         struct command_context *context = calloc(1, sizeof(struct command_context));
1241         const char *HostOs;
1242
1243         context->mode = COMMAND_EXEC;
1244
1245         /* Create a jim interpreter if we were not handed one */
1246         if (interp == NULL) {
1247                 /* Create an interpreter */
1248                 interp = Jim_CreateInterp();
1249                 /* Add all the Jim core commands */
1250                 Jim_RegisterCoreCommands(interp);
1251                 Jim_InitStaticExtensions(interp);
1252         }
1253
1254         context->interp = interp;
1255
1256         /* Stick to lowercase for HostOS strings. */
1257 #if defined(_MSC_VER)
1258         /* WinXX - is generic, the forward
1259          * looking problem is this:
1260          *
1261          *   "win32" or "win64"
1262          *
1263          * "winxx" is generic.
1264          */
1265         HostOs = "winxx";
1266 #elif defined(__linux__)
1267         HostOs = "linux";
1268 #elif defined(__APPLE__) || defined(__DARWIN__)
1269         HostOs = "darwin";
1270 #elif defined(__CYGWIN__)
1271         HostOs = "cygwin";
1272 #elif defined(__MINGW32__)
1273         HostOs = "mingw32";
1274 #elif defined(__ECOS)
1275         HostOs = "ecos";
1276 #elif defined(__FreeBSD__)
1277         HostOs = "freebsd";
1278 #elif defined(__NetBSD__)
1279         HostOs = "netbsd";
1280 #elif defined(__OpenBSD__)
1281         HostOs = "openbsd";
1282 #else
1283 #warning "Unrecognized host OS..."
1284         HostOs = "other";
1285 #endif
1286         Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
1287                 Jim_NewStringObj(interp, HostOs, strlen(HostOs)));
1288
1289         Jim_CreateCommand(interp, "ocd_find", jim_find, NULL, NULL);
1290         Jim_CreateCommand(interp, "capture", jim_capture, NULL, NULL);
1291
1292         register_commands(context, NULL, command_builtin_handlers);
1293
1294         Jim_SetAssocData(interp, "context", NULL, context);
1295         if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl", 1) == JIM_ERR) {
1296                 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
1297                 Jim_MakeErrorMessage(interp);
1298                 LOG_USER_N("%s", Jim_GetString(Jim_GetResult(interp), NULL));
1299                 exit(-1);
1300         }
1301         Jim_DeleteAssocData(interp, "context");
1302
1303         return context;
1304 }
1305
1306 void command_exit(struct command_context *context)
1307 {
1308         if (!context)
1309                 return;
1310
1311         Jim_FreeInterp(context->interp);
1312         command_done(context);
1313 }
1314
1315 int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode)
1316 {
1317         if (!cmd_ctx)
1318                 return ERROR_COMMAND_SYNTAX_ERROR;
1319
1320         cmd_ctx->mode = mode;
1321         return ERROR_OK;
1322 }
1323
1324 void process_jim_events(struct command_context *cmd_ctx)
1325 {
1326         static int recursion;
1327         if (recursion)
1328                 return;
1329
1330         recursion++;
1331         Jim_ProcessEvents(cmd_ctx->interp, JIM_ALL_EVENTS | JIM_DONT_WAIT);
1332         recursion--;
1333 }
1334
1335 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
1336         int parse ## name(const char *str, type * ul) \
1337         { \
1338                 if (!*str) { \
1339                         LOG_ERROR("Invalid command argument"); \
1340                         return ERROR_COMMAND_ARGUMENT_INVALID; \
1341                 } \
1342                 char *end; \
1343                 *ul = func(str, &end, 0); \
1344                 if (*end) { \
1345                         LOG_ERROR("Invalid command argument"); \
1346                         return ERROR_COMMAND_ARGUMENT_INVALID; \
1347                 } \
1348                 if ((max == *ul) && (ERANGE == errno)) { \
1349                         LOG_ERROR("Argument overflow"); \
1350                         return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1351                 } \
1352                 if (min && (min == *ul) && (ERANGE == errno)) { \
1353                         LOG_ERROR("Argument underflow"); \
1354                         return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1355                 } \
1356                 return ERROR_OK; \
1357         }
1358 DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long, strtoul, 0, ULONG_MAX)
1359 DEFINE_PARSE_NUM_TYPE(_ullong, unsigned long long, strtoull, 0, ULLONG_MAX)
1360 DEFINE_PARSE_NUM_TYPE(_long, long, strtol, LONG_MIN, LONG_MAX)
1361 DEFINE_PARSE_NUM_TYPE(_llong, long long, strtoll, LLONG_MIN, LLONG_MAX)
1362
1363 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
1364         int parse ## name(const char *str, type * ul) \
1365         { \
1366                 functype n; \
1367                 int retval = parse ## funcname(str, &n); \
1368                 if (ERROR_OK != retval) \
1369                         return retval; \
1370                 if (n > max) \
1371                         return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1372                 if (min) \
1373                         return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1374                 *ul = n; \
1375                 return ERROR_OK; \
1376         }
1377
1378 #define DEFINE_PARSE_ULONGLONG(name, type, min, max) \
1379         DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long long, _ullong)
1380 DEFINE_PARSE_ULONGLONG(_uint, unsigned, 0, UINT_MAX)
1381 DEFINE_PARSE_ULONGLONG(_u64,  uint64_t, 0, UINT64_MAX)
1382 DEFINE_PARSE_ULONGLONG(_u32,  uint32_t, 0, UINT32_MAX)
1383 DEFINE_PARSE_ULONGLONG(_u16,  uint16_t, 0, UINT16_MAX)
1384 DEFINE_PARSE_ULONGLONG(_u8,   uint8_t,  0, UINT8_MAX)
1385
1386 DEFINE_PARSE_ULONGLONG(_target_addr, target_addr_t, 0, TARGET_ADDR_MAX)
1387
1388 #define DEFINE_PARSE_LONGLONG(name, type, min, max) \
1389         DEFINE_PARSE_WRAPPER(name, type, min, max, long long, _llong)
1390 DEFINE_PARSE_LONGLONG(_int, int,     n < INT_MIN,   INT_MAX)
1391 DEFINE_PARSE_LONGLONG(_s64, int64_t, n < INT64_MIN, INT64_MAX)
1392 DEFINE_PARSE_LONGLONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
1393 DEFINE_PARSE_LONGLONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
1394 DEFINE_PARSE_LONGLONG(_s8,  int8_t,  n < INT8_MIN,  INT8_MAX)
1395
1396 static int command_parse_bool(const char *in, bool *out,
1397         const char *on, const char *off)
1398 {
1399         if (strcasecmp(in, on) == 0)
1400                 *out = true;
1401         else if (strcasecmp(in, off) == 0)
1402                 *out = false;
1403         else
1404                 return ERROR_COMMAND_SYNTAX_ERROR;
1405         return ERROR_OK;
1406 }
1407
1408 int command_parse_bool_arg(const char *in, bool *out)
1409 {
1410         if (command_parse_bool(in, out, "on", "off") == ERROR_OK)
1411                 return ERROR_OK;
1412         if (command_parse_bool(in, out, "enable", "disable") == ERROR_OK)
1413                 return ERROR_OK;
1414         if (command_parse_bool(in, out, "true", "false") == ERROR_OK)
1415                 return ERROR_OK;
1416         if (command_parse_bool(in, out, "yes", "no") == ERROR_OK)
1417                 return ERROR_OK;
1418         if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
1419                 return ERROR_OK;
1420         return ERROR_COMMAND_SYNTAX_ERROR;
1421 }
1422
1423 COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
1424 {
1425         switch (CMD_ARGC) {
1426                 case 1: {
1427                         const char *in = CMD_ARGV[0];
1428                         if (command_parse_bool_arg(in, out) != ERROR_OK) {
1429                                 LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
1430                                 return ERROR_COMMAND_SYNTAX_ERROR;
1431                         }
1432                 }
1433                         /* fallthrough */
1434                 case 0:
1435                         LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
1436                         break;
1437                 default:
1438                         return ERROR_COMMAND_SYNTAX_ERROR;
1439         }
1440         return ERROR_OK;
1441 }