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