scripts/kconfig/conf.c

   1 /*
   2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
   3  * Released under the terms of the GNU GPL v2.0.
   4  */
   5
   6 #include <locale.h>
   7 #include <ctype.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <time.h>
  12 #include <unistd.h>
  13 #include <getopt.h>
  14 #include <sys/stat.h>
  15 #include <sys/time.h>
  16
  17 #define LKC_DIRECT_LINK
  18 #include "lkc.h"
  19
  20 static void conf(struct menu *menu);
  21 static void check_conf(struct menu *menu);
  22
  23 enum input_mode {
  24         oldaskconfig,
  25         silentoldconfig,
  26         oldconfig,
  27         allnoconfig,
  28         allyesconfig,
  29         allmodconfig,
  30         alldefconfig,
  31         randconfig,
  32         defconfig,
  33         savedefconfig,
  34         listnewconfig,
  35         oldnoconfig,
  36 } input_mode = oldaskconfig;
  37
  38 char *defconfig_file;
  39
  40 static int indent = 1;
  41 static int valid_stdin = 1;
  42 static int sync_kconfig;
  43 static int conf_cnt;
  44 static char line[128];
  45 static struct menu *rootEntry;
  46
  47 static void print_help(struct menu *menu)
  48 {
  49         struct gstr help = str_new();
  50
  51         menu_get_ext_help(menu, &help);
  52
  53         printf("\n%s\n", str_get(&help));
  54         str_free(&help);
  55 }
  56
  57 static void strip(char *str)
  58 {
  59         char *p = str;
  60         int l;
  61
  62         while ((isspace(*p)))
  63                 p++;
  64         l = strlen(p);
  65         if (p != str)
  66                 memmove(str, p, l + 1);
  67         if (!l)
  68                 return;
  69         p = str + l - 1;
  70         while ((isspace(*p)))
  71                 *p-- = 0;
  72 }
  73
  74 static void check_stdin(void)
  75 {
  76         if (!valid_stdin) {
  77                 printf(_("aborted!\n\n"));
  78                 printf(_("Console input/output is redirected. "));
  79                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  80                 exit(1);
  81         }
  82 }
  83
  84 static int conf_askvalue(struct symbol *sym, const char *def)
  85 {
  86         enum symbol_type type = sym_get_type(sym);
  87
  88         if (!sym_has_value(sym))
  89                 printf(_("(NEW) "));
  90
  91         line[0] = '\n';
  92         line[1] = 0;
  93
  94         if (!sym_is_changable(sym)) {
  95                 printf("%s\n", def);
  96                 line[0] = '\n';
  97                 line[1] = 0;
  98                 return 0;
  99         }
 100
 101         switch (input_mode) {
 102         case oldconfig:
 103         case silentoldconfig:
 104                 if (sym_has_value(sym)) {
 105                         printf("%s\n", def);
 106                         return 0;
 107                 }
 108                 check_stdin();
 109         case oldaskconfig:
 110                 fflush(stdout);
 111                 xfgets(line, 128, stdin);
 112                 return 1;
 113         default:
 114                 break;
 115         }
 116
 117         switch (type) {
 118         case S_INT:
 119         case S_HEX:
 120         case S_STRING:
 121                 printf("%s\n", def);
 122                 return 1;
 123         default:
 124                 ;
 125         }
 126         printf("%s", line);
 127         return 1;
 128 }
 129
 130 static int conf_string(struct menu *menu)
 131 {
 132         struct symbol *sym = menu->sym;
 133         const char *def;
 134
 135         while (1) {
 136                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 137                 printf("(%s) ", sym->name);
 138                 def = sym_get_string_value(sym);
 139                 if (sym_get_string_value(sym))
 140                         printf("[%s] ", def);
 141                 if (!conf_askvalue(sym, def))
 142                         return 0;
 143                 switch (line[0]) {
 144                 case '\n':
 145                         break;
 146                 case '?':
 147                         /* print help */
 148                         if (line[1] == '\n') {
 149                                 print_help(menu);
 150                                 def = NULL;
 151                                 break;
 152                         }
 153                 default:
 154                         line[strlen(line)-1] = 0;
 155                         def = line;
 156                 }
 157                 if (def && sym_set_string_value(sym, def))
 158                         return 0;
 159         }
 160 }
 161
 162 static int conf_sym(struct menu *menu)
 163 {
 164         struct symbol *sym = menu->sym;
 165         tristate oldval, newval;
 166
 167         while (1) {
 168                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 169                 if (sym->name)
 170                         printf("(%s) ", sym->name);
 171                 putchar('[');
 172                 oldval = sym_get_tristate_value(sym);
 173                 switch (oldval) {
 174                 case no:
 175                         putchar('N');
 176                         break;
 177                 case mod:
 178                         putchar('M');
 179                         break;
 180                 case yes:
 181                         putchar('Y');
 182                         break;
 183                 }
 184                 if (oldval != no && sym_tristate_within_range(sym, no))
 185                         printf("/n");
 186                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 187                         printf("/m");
 188                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 189                         printf("/y");
 190                 if (menu_has_help(menu))
 191                         printf("/?");
 192                 printf("] ");
 193                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 194                         return 0;
 195                 strip(line);
 196
 197                 switch (line[0]) {
 198                 case 'n':
 199                 case 'N':
 200                         newval = no;
 201                         if (!line[1] || !strcmp(&line[1], "o"))
 202                                 break;
 203                         continue;
 204                 case 'm':
 205                 case 'M':
 206                         newval = mod;
 207                         if (!line[1])
 208                                 break;
 209                         continue;
 210                 case 'y':
 211                 case 'Y':
 212                         newval = yes;
 213                         if (!line[1] || !strcmp(&line[1], "es"))
 214                                 break;
 215                         continue;
 216                 case 0:
 217                         newval = oldval;
 218                         break;
 219                 case '?':
 220                         goto help;
 221                 default:
 222                         continue;
 223                 }
 224                 if (sym_set_tristate_value(sym, newval))
 225                         return 0;
 226 help:
 227                 print_help(menu);
 228         }
 229 }
 230
 231 static int conf_choice(struct menu *menu)
 232 {
 233         struct symbol *sym, *def_sym;
 234         struct menu *child;
 235         bool is_new;
 236
 237         sym = menu->sym;
 238         is_new = !sym_has_value(sym);
 239         if (sym_is_changable(sym)) {
 240                 conf_sym(menu);
 241                 sym_calc_value(sym);
 242                 switch (sym_get_tristate_value(sym)) {
 243                 case no:
 244                         return 1;
 245                 case mod:
 246                         return 0;
 247                 case yes:
 248                         break;
 249                 }
 250         } else {
 251                 switch (sym_get_tristate_value(sym)) {
 252                 case no:
 253                         return 1;
 254                 case mod:
 255                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 256                         return 0;
 257                 case yes:
 258                         break;
 259                 }
 260         }
 261
 262         while (1) {
 263                 int cnt, def;
 264
 265                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 266                 def_sym = sym_get_choice_value(sym);
 267                 cnt = def = 0;
 268                 line[0] = 0;
 269                 for (child = menu->list; child; child = child->next) {
 270                         if (!menu_is_visible(child))
 271                                 continue;
 272                         if (!child->sym) {
 273                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 274                                 continue;
 275                         }
 276                         cnt++;
 277                         if (child->sym == def_sym) {
 278                                 def = cnt;
 279                                 printf("%*c", indent, '>');
 280                         } else
 281                                 printf("%*c", indent, ' ');
 282                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 283                         if (child->sym->name)
 284                                 printf(" (%s)", child->sym->name);
 285                         if (!sym_has_value(child->sym))
 286                                 printf(_(" (NEW)"));
 287                         printf("\n");
 288                 }
 289                 printf(_("%*schoice"), indent - 1, "");
 290                 if (cnt == 1) {
 291                         printf("[1]: 1\n");
 292                         goto conf_childs;
 293                 }
 294                 printf("[1-%d", cnt);
 295                 if (menu_has_help(menu))
 296                         printf("?");
 297                 printf("]: ");
 298                 switch (input_mode) {
 299                 case oldconfig:
 300                 case silentoldconfig:
 301                         if (!is_new) {
 302                                 cnt = def;
 303                                 printf("%d\n", cnt);
 304                                 break;
 305                         }
 306                         check_stdin();
 307                 case oldaskconfig:
 308                         fflush(stdout);
 309                         xfgets(line, 128, stdin);
 310                         strip(line);
 311                         if (line[0] == '?') {
 312                                 print_help(menu);
 313                                 continue;
 314                         }
 315                         if (!line[0])
 316                                 cnt = def;
 317                         else if (isdigit(line[0]))
 318                                 cnt = atoi(line);
 319                         else
 320                                 continue;
 321                         break;
 322                 default:
 323                         break;
 324                 }
 325
 326         conf_childs:
 327                 for (child = menu->list; child; child = child->next) {
 328                         if (!child->sym || !menu_is_visible(child))
 329                                 continue;
 330                         if (!--cnt)
 331                                 break;
 332                 }
 333                 if (!child)
 334                         continue;
 335                 if (line[strlen(line) - 1] == '?') {
 336                         print_help(child);
 337                         continue;
 338                 }
 339                 sym_set_choice_value(sym, child->sym);
 340                 for (child = child->list; child; child = child->next) {
 341                         indent += 2;
 342                         conf(child);
 343                         indent -= 2;
 344                 }
 345                 return 1;
 346         }
 347 }
 348
 349 static void conf(struct menu *menu)
 350 {
 351         struct symbol *sym;
 352         struct property *prop;
 353         struct menu *child;
 354
 355         if (!menu_is_visible(menu))
 356                 return;
 357
 358         sym = menu->sym;
 359         prop = menu->prompt;
 360         if (prop) {
 361                 const char *prompt;
 362
 363                 switch (prop->type) {
 364                 case P_MENU:
 365                         if ((input_mode == silentoldconfig ||
 366                              input_mode == listnewconfig ||
 367                              input_mode == oldnoconfig) &&
 368                             rootEntry != menu) {
 369                                 check_conf(menu);
 370                                 return;
 371                         }
 372                 case P_COMMENT:
 373                         prompt = menu_get_prompt(menu);
 374                         if (prompt)
 375                                 printf("%*c\n%*c %s\n%*c\n",
 376                                         indent, '*',
 377                                         indent, '*', _(prompt),
 378                                         indent, '*');
 379                 default:
 380                         ;
 381                 }
 382         }
 383
 384         if (!sym)
 385                 goto conf_childs;
 386
 387         if (sym_is_choice(sym)) {
 388                 conf_choice(menu);
 389                 if (sym->curr.tri != mod)
 390                         return;
 391                 goto conf_childs;
 392         }
 393
 394         switch (sym->type) {
 395         case S_INT:
 396         case S_HEX:
 397         case S_STRING:
 398                 conf_string(menu);
 399                 break;
 400         default:
 401                 conf_sym(menu);
 402                 break;
 403         }
 404
 405 conf_childs:
 406         if (sym)
 407                 indent += 2;
 408         for (child = menu->list; child; child = child->next)
 409                 conf(child);
 410         if (sym)
 411                 indent -= 2;
 412 }
 413
 414 static void check_conf(struct menu *menu)
 415 {
 416         struct symbol *sym;
 417         struct menu *child;
 418
 419         if (!menu_is_visible(menu))
 420                 return;
 421
 422         sym = menu->sym;
 423         if (sym && !sym_has_value(sym)) {
 424                 if (sym_is_changable(sym) ||
 425                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 426                         if (input_mode == listnewconfig) {
 427                                 if (sym->name && !sym_is_choice_value(sym)) {
 428                                         printf("CONFIG_%s\n", sym->name);
 429                                 }
 430                         } else {
 431                                 if (!conf_cnt++)
 432                                         printf(_("*\n* Restart config...\n*\n"));
 433                                 rootEntry = menu_get_parent_menu(menu);
 434                                 conf(rootEntry);
 435                         }
 436                 }
 437         }
 438
 439         for (child = menu->list; child; child = child->next)
 440                 check_conf(child);
 441 }
 442
 443 static struct option long_opts[] = {
 444         {"oldaskconfig",    no_argument,       NULL, oldaskconfig},
 445         {"oldconfig",       no_argument,       NULL, oldconfig},
 446         {"silentoldconfig", no_argument,       NULL, silentoldconfig},
 447         {"defconfig",       optional_argument, NULL, defconfig},
 448         {"savedefconfig",   required_argument, NULL, savedefconfig},
 449         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 450         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 451         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 452         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 453         {"randconfig",      no_argument,       NULL, randconfig},
 454         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 455         {"oldnoconfig",     no_argument,       NULL, oldnoconfig},
 456         {NULL, 0, NULL, 0}
 457 };
 458
 459 int main(int ac, char **av)
 460 {
 461         int opt;
 462         const char *name;
 463         struct stat tmpstat;
 464
 465         setlocale(LC_ALL, "");
 466         bindtextdomain(PACKAGE, LOCALEDIR);
 467         textdomain(PACKAGE);
 468
 469         while ((opt = getopt_long_only(ac, av, "", long_opts, NULL)) != -1) {
 470                 input_mode = (enum input_mode)opt;
 471                 switch (opt) {
 472                 case silentoldconfig:
 473                         sync_kconfig = 1;
 474                         break;
 475                 case defconfig:
 476                 case savedefconfig:
 477                         defconfig_file = optarg;
 478                         break;
 479                 case randconfig:
 480                 {
 481                         struct timeval now;
 482                         unsigned int seed;
 483
 484                         /*
 485                          * Use microseconds derived seed,
 486                          * compensate for systems where it may be zero
 487                          */
 488                         gettimeofday(&now, NULL);
 489
 490                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 491                         srand(seed);
 492                         break;
 493                 }
 494                 case '?':
 495                         fprintf(stderr, _("See README for usage info\n"));
 496                         exit(1);
 497                         break;
 498                 }
 499         }
 500         if (ac == optind) {
 501                 printf(_("%s: Kconfig file missing\n"), av[0]);
 502                 exit(1);
 503         }
 504         name = av[optind];
 505         conf_parse(name);
 506         //zconfdump(stdout);
 507         if (sync_kconfig) {
 508                 name = conf_get_configname();
 509                 if (stat(name, &tmpstat)) {
 510                         fprintf(stderr, _("***\n"
 511                                 "*** You have not yet configured your kernel!\n"
 512                                 "*** (missing kernel config file \"%s\")\n"
 513                                 "***\n"
 514                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 515                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
 516                                 "***\n"), name);
 517                         exit(1);
 518                 }
 519         }
 520
 521         switch (input_mode) {
 522         case defconfig:
 523                 if (!defconfig_file)
 524                         defconfig_file = conf_get_default_confname();
 525                 if (conf_read(defconfig_file)) {
 526                         printf(_("***\n"
 527                                 "*** Can't find default configuration \"%s\"!\n"
 528                                 "***\n"), defconfig_file);
 529                         exit(1);
 530                 }
 531                 break;
 532         case savedefconfig:
 533                 conf_read(NULL);
 534                 break;
 535         case silentoldconfig:
 536         case oldaskconfig:
 537         case oldconfig:
 538         case listnewconfig:
 539         case oldnoconfig:
 540                 conf_read(NULL);
 541                 break;
 542         case allnoconfig:
 543         case allyesconfig:
 544         case allmodconfig:
 545         case alldefconfig:
 546         case randconfig:
 547                 name = getenv("KCONFIG_ALLCONFIG");
 548                 if (name && !stat(name, &tmpstat)) {
 549                         conf_read_simple(name, S_DEF_USER);
 550                         break;
 551                 }
 552                 switch (input_mode) {
 553                 case allnoconfig:       name = "allno.config"; break;
 554                 case allyesconfig:      name = "allyes.config"; break;
 555                 case allmodconfig:      name = "allmod.config"; break;
 556                 case alldefconfig:      name = "alldef.config"; break;
 557                 case randconfig:        name = "allrandom.config"; break;
 558                 default: break;
 559                 }
 560                 if (!stat(name, &tmpstat))
 561                         conf_read_simple(name, S_DEF_USER);
 562                 else if (!stat("all.config", &tmpstat))
 563                         conf_read_simple("all.config", S_DEF_USER);
 564                 break;
 565         default:
 566                 break;
 567         }
 568
 569         if (sync_kconfig) {
 570                 if (conf_get_changed()) {
 571                         name = getenv("KCONFIG_NOSILENTUPDATE");
 572                         if (name && *name) {
 573                                 fprintf(stderr,
 574                                         _("\n*** Kernel configuration requires explicit update.\n\n"));
 575                                 return 1;
 576                         }
 577                 }
 578                 valid_stdin = isatty(0) && isatty(1) && isatty(2);
 579         }
 580
 581         switch (input_mode) {
 582         case allnoconfig:
 583                 conf_set_all_new_symbols(def_no);
 584                 break;
 585         case allyesconfig:
 586                 conf_set_all_new_symbols(def_yes);
 587                 break;
 588         case allmodconfig:
 589                 conf_set_all_new_symbols(def_mod);
 590                 break;
 591         case alldefconfig:
 592                 conf_set_all_new_symbols(def_default);
 593                 break;
 594         case randconfig:
 595                 conf_set_all_new_symbols(def_random);
 596                 break;
 597         case defconfig:
 598                 conf_set_all_new_symbols(def_default);
 599                 break;
 600         case savedefconfig:
 601                 break;
 602         case oldaskconfig:
 603                 rootEntry = &rootmenu;
 604                 conf(&rootmenu);
 605                 input_mode = silentoldconfig;
 606                 /* fall through */
 607         case oldconfig:
 608         case listnewconfig:
 609         case oldnoconfig:
 610         case silentoldconfig:
 611                 /* Update until a loop caused no more changes */
 612                 do {
 613                         conf_cnt = 0;
 614                         check_conf(&rootmenu);
 615                 } while (conf_cnt &&
 616                          (input_mode != listnewconfig &&
 617                           input_mode != oldnoconfig));
 618                 break;
 619         }
 620
 621         if (sync_kconfig) {
 622                 /* silentoldconfig is used during the build so we shall update autoconf.
 623                  * All other commands are only used to generate a config.
 624                  */
 625                 if (conf_get_changed() && conf_write(NULL)) {
 626                         fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 627                         exit(1);
 628                 }
 629                 if (conf_write_autoconf()) {
 630                         fprintf(stderr, _("\n*** Error during update of the kernel configuration.\n\n"));
 631                         return 1;
 632                 }
 633         } else if (input_mode == savedefconfig) {
 634                 if (conf_write_defconfig(defconfig_file)) {
 635                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 636                                 defconfig_file);
 637                         return 1;
 638                 }
 639         } else if (input_mode != listnewconfig) {
 640                 if (conf_write(NULL)) {
 641                         fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 642                         exit(1);
 643                 }
 644         }
 645         return 0;
 646 }
 647 /*
 648  * Helper function to facilitate fgets() by Jean Sacren.
 649  */
 650 void xfgets(str, size, in)
 651         char *str;
 652         int size;
 653         FILE *in;
 654 {
 655         if (fgets(str, size, in) == NULL)
 656                 fprintf(stderr, "\nError in reading or end of file.\n");
 657 }