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 #include "lkc.h"
  18
  19 static void conf(struct menu *menu);
  20 static void check_conf(struct menu *menu);
  21 static void xfgets(char *str, int size, FILE *in);
  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         olddefconfig,
  36 } input_mode = oldaskconfig;
  37
  38 static int indent = 1;
  39 static int valid_stdin = 1;
  40 static int sync_kconfig;
  41 static int conf_cnt;
  42 static char line[128];
  43 static struct menu *rootEntry;
  44
  45 static void print_help(struct menu *menu)
  46 {
  47         struct gstr help = str_new();
  48
  49         menu_get_ext_help(menu, &help);
  50
  51         printf("\n%s\n", str_get(&help));
  52         str_free(&help);
  53 }
  54
  55 static void strip(char *str)
  56 {
  57         char *p = str;
  58         int l;
  59
  60         while ((isspace(*p)))
  61                 p++;
  62         l = strlen(p);
  63         if (p != str)
  64                 memmove(str, p, l + 1);
  65         if (!l)
  66                 return;
  67         p = str + l - 1;
  68         while ((isspace(*p)))
  69                 *p-- = 0;
  70 }
  71
  72 static void check_stdin(void)
  73 {
  74         if (!valid_stdin) {
  75                 printf(_("aborted!\n\n"));
  76                 printf(_("Console input/output is redirected. "));
  77                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
  78                 exit(1);
  79         }
  80 }
  81
  82 static int conf_askvalue(struct symbol *sym, const char *def)
  83 {
  84         enum symbol_type type = sym_get_type(sym);
  85
  86         if (!sym_has_value(sym))
  87                 printf(_("(NEW) "));
  88
  89         line[0] = '\n';
  90         line[1] = 0;
  91
  92         if (!sym_is_changable(sym)) {
  93                 printf("%s\n", def);
  94                 line[0] = '\n';
  95                 line[1] = 0;
  96                 return 0;
  97         }
  98
  99         switch (input_mode) {
 100         case oldconfig:
 101         case silentoldconfig:
 102                 if (sym_has_value(sym)) {
 103                         printf("%s\n", def);
 104                         return 0;
 105                 }
 106                 check_stdin();
 107                 /* fall through */
 108         case oldaskconfig:
 109                 fflush(stdout);
 110                 xfgets(line, 128, stdin);
 111                 return 1;
 112         default:
 113                 break;
 114         }
 115
 116         switch (type) {
 117         case S_INT:
 118         case S_HEX:
 119         case S_STRING:
 120                 printf("%s\n", def);
 121                 return 1;
 122         default:
 123                 ;
 124         }
 125         printf("%s", line);
 126         return 1;
 127 }
 128
 129 static int conf_string(struct menu *menu)
 130 {
 131         struct symbol *sym = menu->sym;
 132         const char *def;
 133
 134         while (1) {
 135                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 136                 printf("(%s) ", sym->name);
 137                 def = sym_get_string_value(sym);
 138                 if (sym_get_string_value(sym))
 139                         printf("[%s] ", def);
 140                 if (!conf_askvalue(sym, def))
 141                         return 0;
 142                 switch (line[0]) {
 143                 case '\n':
 144                         break;
 145                 case '?':
 146                         /* print help */
 147                         if (line[1] == '\n') {
 148                                 print_help(menu);
 149                                 def = NULL;
 150                                 break;
 151                         }
 152                         /* fall through */
 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                         /* fall through */
 308                 case oldaskconfig:
 309                         fflush(stdout);
 310                         xfgets(line, 128, stdin);
 311                         strip(line);
 312                         if (line[0] == '?') {
 313                                 print_help(menu);
 314                                 continue;
 315                         }
 316                         if (!line[0])
 317                                 cnt = def;
 318                         else if (isdigit(line[0]))
 319                                 cnt = atoi(line);
 320                         else
 321                                 continue;
 322                         break;
 323                 default:
 324                         break;
 325                 }
 326
 327         conf_childs:
 328                 for (child = menu->list; child; child = child->next) {
 329                         if (!child->sym || !menu_is_visible(child))
 330                                 continue;
 331                         if (!--cnt)
 332                                 break;
 333                 }
 334                 if (!child)
 335                         continue;
 336                 if (line[0] && line[strlen(line) - 1] == '?') {
 337                         print_help(child);
 338                         continue;
 339                 }
 340                 sym_set_choice_value(sym, child->sym);
 341                 for (child = child->list; child; child = child->next) {
 342                         indent += 2;
 343                         conf(child);
 344                         indent -= 2;
 345                 }
 346                 return 1;
 347         }
 348 }
 349
 350 static void conf(struct menu *menu)
 351 {
 352         struct symbol *sym;
 353         struct property *prop;
 354         struct menu *child;
 355
 356         if (!menu_is_visible(menu))
 357                 return;
 358
 359         sym = menu->sym;
 360         prop = menu->prompt;
 361         if (prop) {
 362                 const char *prompt;
 363
 364                 switch (prop->type) {
 365                 case P_MENU:
 366                         if ((input_mode == silentoldconfig ||
 367                              input_mode == listnewconfig ||
 368                              input_mode == olddefconfig) &&
 369                             rootEntry != menu) {
 370                                 check_conf(menu);
 371                                 return;
 372                         }
 373                         /* fall through */
 374                 case P_COMMENT:
 375                         prompt = menu_get_prompt(menu);
 376                         if (prompt)
 377                                 printf("%*c\n%*c %s\n%*c\n",
 378                                         indent, '*',
 379                                         indent, '*', _(prompt),
 380                                         indent, '*');
 381                 default:
 382                         ;
 383                 }
 384         }
 385
 386         if (!sym)
 387                 goto conf_childs;
 388
 389         if (sym_is_choice(sym)) {
 390                 conf_choice(menu);
 391                 if (sym->curr.tri != mod)
 392                         return;
 393                 goto conf_childs;
 394         }
 395
 396         switch (sym->type) {
 397         case S_INT:
 398         case S_HEX:
 399         case S_STRING:
 400                 conf_string(menu);
 401                 break;
 402         default:
 403                 conf_sym(menu);
 404                 break;
 405         }
 406
 407 conf_childs:
 408         if (sym)
 409                 indent += 2;
 410         for (child = menu->list; child; child = child->next)
 411                 conf(child);
 412         if (sym)
 413                 indent -= 2;
 414 }
 415
 416 static void check_conf(struct menu *menu)
 417 {
 418         struct symbol *sym;
 419         struct menu *child;
 420
 421         if (!menu_is_visible(menu))
 422                 return;
 423
 424         sym = menu->sym;
 425         if (sym && !sym_has_value(sym)) {
 426                 if (sym_is_changable(sym) ||
 427                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 428                         if (input_mode == listnewconfig) {
 429                                 if (sym->name && !sym_is_choice_value(sym)) {
 430                                         printf("%s%s\n", CONFIG_, sym->name);
 431                                 }
 432                         } else if (input_mode != olddefconfig) {
 433                                 if (!conf_cnt++)
 434                                         printf(_("*\n* Restart config...\n*\n"));
 435                                 rootEntry = menu_get_parent_menu(menu);
 436                                 conf(rootEntry);
 437                         }
 438                 }
 439         }
 440
 441         for (child = menu->list; child; child = child->next)
 442                 check_conf(child);
 443 }
 444
 445 static struct option long_opts[] = {
 446         {"oldaskconfig",    no_argument,       NULL, oldaskconfig},
 447         {"oldconfig",       no_argument,       NULL, oldconfig},
 448         {"silentoldconfig", no_argument,       NULL, silentoldconfig},
 449         {"defconfig",       optional_argument, NULL, defconfig},
 450         {"savedefconfig",   required_argument, NULL, savedefconfig},
 451         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 452         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 453         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 454         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 455         {"randconfig",      no_argument,       NULL, randconfig},
 456         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 457         {"olddefconfig",    no_argument,       NULL, olddefconfig},
 458         /*
 459          * oldnoconfig is an alias of olddefconfig, because people already
 460          * are dependent on its behavior(sets new symbols to their default
 461          * value but not 'n') with the counter-intuitive name.
 462          */
 463         {"oldnoconfig",     no_argument,       NULL, olddefconfig},
 464         {NULL, 0, NULL, 0}
 465 };
 466
 467 static void conf_usage(const char *progname)
 468 {
 469
 470         printf("Usage: %s [option] <kconfig-file>\n", progname);
 471         printf("[option] is _one_ of the following:\n");
 472         printf("  --listnewconfig         List new options\n");
 473         printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
 474         printf("  --oldconfig             Update a configuration using a provided .config as base\n");
 475         printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
 476         printf("  --olddefconfig          Same as silentoldconfig but sets new symbols to their default value\n");
 477         printf("  --oldnoconfig           An alias of olddefconfig\n");
 478         printf("  --defconfig <file>      New config with default defined in <file>\n");
 479         printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 480         printf("  --allnoconfig           New config where all options are answered with no\n");
 481         printf("  --allyesconfig          New config where all options are answered with yes\n");
 482         printf("  --allmodconfig          New config where all options are answered with mod\n");
 483         printf("  --alldefconfig          New config with all symbols set to default\n");
 484         printf("  --randconfig            New config with random answer to all options\n");
 485 }
 486
 487 int main(int ac, char **av)
 488 {
 489         const char *progname = av[0];
 490         int opt;
 491         const char *name, *defconfig_file = NULL /* gcc uninit */;
 492         struct stat tmpstat;
 493
 494         setlocale(LC_ALL, "");
 495         bindtextdomain(PACKAGE, LOCALEDIR);
 496         textdomain(PACKAGE);
 497
 498         while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
 499                 input_mode = (enum input_mode)opt;
 500                 switch (opt) {
 501                 case silentoldconfig:
 502                         sync_kconfig = 1;
 503                         break;
 504                 case defconfig:
 505                 case savedefconfig:
 506                         defconfig_file = optarg;
 507                         break;
 508                 case randconfig:
 509                 {
 510                         struct timeval now;
 511                         unsigned int seed;
 512
 513                         /*
 514                          * Use microseconds derived seed,
 515                          * compensate for systems where it may be zero
 516                          */
 517                         gettimeofday(&now, NULL);
 518
 519                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 520                         srand(seed);
 521                         break;
 522                 }
 523                 case oldaskconfig:
 524                 case oldconfig:
 525                 case allnoconfig:
 526                 case allyesconfig:
 527                 case allmodconfig:
 528                 case alldefconfig:
 529                 case listnewconfig:
 530                 case olddefconfig:
 531                         break;
 532                 case '?':
 533                         conf_usage(progname);
 534                         exit(1);
 535                         break;
 536                 }
 537         }
 538         if (ac == optind) {
 539                 printf(_("%s: Kconfig file missing\n"), av[0]);
 540                 conf_usage(progname);
 541                 exit(1);
 542         }
 543         name = av[optind];
 544         conf_parse(name);
 545         //zconfdump(stdout);
 546         if (sync_kconfig) {
 547                 name = conf_get_configname();
 548                 if (stat(name, &tmpstat)) {
 549                         fprintf(stderr, _("***\n"
 550                                 "*** Configuration file \"%s\" not found!\n"
 551                                 "***\n"
 552                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
 553                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
 554                                 "***\n"), name);
 555                         exit(1);
 556                 }
 557         }
 558
 559         switch (input_mode) {
 560         case defconfig:
 561                 if (!defconfig_file)
 562                         defconfig_file = conf_get_default_confname();
 563                 if (conf_read(defconfig_file)) {
 564                         printf(_("***\n"
 565                                 "*** Can't find default configuration \"%s\"!\n"
 566                                 "***\n"), defconfig_file);
 567                         exit(1);
 568                 }
 569                 break;
 570         case savedefconfig:
 571         case silentoldconfig:
 572         case oldaskconfig:
 573         case oldconfig:
 574         case listnewconfig:
 575         case olddefconfig:
 576                 conf_read(NULL);
 577                 break;
 578         case allnoconfig:
 579         case allyesconfig:
 580         case allmodconfig:
 581         case alldefconfig:
 582         case randconfig:
 583                 name = getenv("KCONFIG_ALLCONFIG");
 584                 if (!name)
 585                         break;
 586                 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
 587                         if (conf_read_simple(name, S_DEF_USER)) {
 588                                 fprintf(stderr,
 589                                         _("*** Can't read seed configuration \"%s\"!\n"),
 590                                         name);
 591                                 exit(1);
 592                         }
 593                         break;
 594                 }
 595                 switch (input_mode) {
 596                 case allnoconfig:       name = "allno.config"; break;
 597                 case allyesconfig:      name = "allyes.config"; break;
 598                 case allmodconfig:      name = "allmod.config"; break;
 599                 case alldefconfig:      name = "alldef.config"; break;
 600                 case randconfig:        name = "allrandom.config"; break;
 601                 default: break;
 602                 }
 603                 if (conf_read_simple(name, S_DEF_USER) &&
 604                     conf_read_simple("all.config", S_DEF_USER)) {
 605                         fprintf(stderr,
 606                                 _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
 607                                 name);
 608                         exit(1);
 609                 }
 610                 break;
 611         default:
 612                 break;
 613         }
 614
 615         if (sync_kconfig) {
 616                 if (conf_get_changed()) {
 617                         name = getenv("KCONFIG_NOSILENTUPDATE");
 618                         if (name && *name) {
 619                                 fprintf(stderr,
 620                                         _("\n*** The configuration requires explicit update.\n\n"));
 621                                 return 1;
 622                         }
 623                 }
 624                 valid_stdin = isatty(0) && isatty(1) && isatty(2);
 625         }
 626
 627         switch (input_mode) {
 628         case allnoconfig:
 629                 conf_set_all_new_symbols(def_no);
 630                 break;
 631         case allyesconfig:
 632                 conf_set_all_new_symbols(def_yes);
 633                 break;
 634         case allmodconfig:
 635                 conf_set_all_new_symbols(def_mod);
 636                 break;
 637         case alldefconfig:
 638                 conf_set_all_new_symbols(def_default);
 639                 break;
 640         case randconfig:
 641                 conf_set_all_new_symbols(def_random);
 642                 break;
 643         case defconfig:
 644                 conf_set_all_new_symbols(def_default);
 645                 break;
 646         case savedefconfig:
 647                 break;
 648         case oldaskconfig:
 649                 rootEntry = &rootmenu;
 650                 conf(&rootmenu);
 651                 input_mode = silentoldconfig;
 652                 /* fall through */
 653         case oldconfig:
 654         case listnewconfig:
 655         case olddefconfig:
 656         case silentoldconfig:
 657                 /* Update until a loop caused no more changes */
 658                 do {
 659                         conf_cnt = 0;
 660                         check_conf(&rootmenu);
 661                 } while (conf_cnt &&
 662                          (input_mode != listnewconfig &&
 663                           input_mode != olddefconfig));
 664                 break;
 665         }
 666
 667         if (sync_kconfig) {
 668                 /* silentoldconfig is used during the build so we shall update autoconf.
 669                  * All other commands are only used to generate a config.
 670                  */
 671                 if (conf_get_changed() && conf_write(NULL)) {
 672                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 673                         exit(1);
 674                 }
 675                 if (conf_write_autoconf()) {
 676                         fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
 677                         return 1;
 678                 }
 679         } else if (input_mode == savedefconfig) {
 680                 if (conf_write_defconfig(defconfig_file)) {
 681                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 682                                 defconfig_file);
 683                         return 1;
 684                 }
 685         } else if (input_mode != listnewconfig) {
 686                 if (conf_write(NULL)) {
 687                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 688                         exit(1);
 689                 }
 690         }
 691         return 0;
 692 }
 693
 694 /*
 695  * Helper function to facilitate fgets() by Jean Sacren.
 696  */
 697 void xfgets(char *str, int size, FILE *in)
 698 {
 699         if (fgets(str, size, in) == NULL)
 700                 fprintf(stderr, "\nError in reading or end of file.\n");
 701 }