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