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 <sys/stat.h> 7 #include <ctype.h> 8 #include <errno.h> 9 #include <fcntl.h> 10 #include <stdarg.h> 11 #include <stdio.h> 12 #include <stdlib.h> 13 #include <string.h> 14 #include <time.h> 15 #include <unistd.h> 16 17 #include "lkc.h" 18 19 static void conf_warning(const char *fmt, ...) 20 __attribute__ ((format (printf, 1, 2))); 21 22 static void conf_message(const char *fmt, ...) 23 __attribute__ ((format (printf, 1, 2))); 24 25 static const char *conf_filename; 26 static int conf_lineno, conf_warnings, conf_unsaved; 27 28 const char conf_defname[] = "arch/$ARCH/defconfig"; 29 30 static void conf_warning(const char *fmt, ...) 31 { 32 va_list ap; 33 va_start(ap, fmt); 34 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); 35 vfprintf(stderr, fmt, ap); 36 fprintf(stderr, "\n"); 37 va_end(ap); 38 conf_warnings++; 39 } 40 41 static void conf_default_message_callback(const char *fmt, va_list ap) 42 { 43 printf("#\n# "); 44 vprintf(fmt, ap); 45 printf("\n#\n"); 46 } 47 48 static void (*conf_message_callback) (const char *fmt, va_list ap) = 49 conf_default_message_callback; 50 void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap)) 51 { 52 conf_message_callback = fn; 53 } 54 55 static void conf_message(const char *fmt, ...) 56 { 57 va_list ap; 58 59 va_start(ap, fmt); 60 if (conf_message_callback) 61 conf_message_callback(fmt, ap); 62 } 63 64 const char *conf_get_configname(void) 65 { 66 char *name = getenv("KCONFIG_CONFIG"); 67 68 return name ? name : ".config"; 69 } 70 71 const char *conf_get_autoconfig_name(void) 72 { 73 char *name = getenv("KCONFIG_AUTOCONFIG"); 74 75 return name ? name : "include/config/auto.conf"; 76 } 77 78 static char *conf_expand_value(const char *in) 79 { 80 struct symbol *sym; 81 const char *src; 82 static char res_value[SYMBOL_MAXLENGTH]; 83 char *dst, name[SYMBOL_MAXLENGTH]; 84 85 res_value[0] = 0; 86 dst = name; 87 while ((src = strchr(in, '$'))) { 88 strncat(res_value, in, src - in); 89 src++; 90 dst = name; 91 while (isalnum(*src) || *src == '_') 92 *dst++ = *src++; 93 *dst = 0; 94 sym = sym_lookup(name, 0); 95 sym_calc_value(sym); 96 strcat(res_value, sym_get_string_value(sym)); 97 in = src; 98 } 99 strcat(res_value, in); 100 101 return res_value; 102 } 103 104 char *conf_get_default_confname(void) 105 { 106 struct stat buf; 107 static char fullname[PATH_MAX+1]; 108 char *env, *name; 109 110 name = conf_expand_value(conf_defname); 111 env = getenv(SRCTREE); 112 if (env) { 113 sprintf(fullname, "%s/%s", env, name); 114 if (!stat(fullname, &buf)) 115 return fullname; 116 } 117 return name; 118 } 119 120 static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) 121 { 122 char *p2; 123 124 switch (sym->type) { 125 case S_TRISTATE: 126 if (p[0] == 'm') { 127 sym->def[def].tri = mod; 128 sym->flags |= def_flags; 129 break; 130 } 131 /* fall through */ 132 case S_BOOLEAN: 133 if (p[0] == 'y') { 134 sym->def[def].tri = yes; 135 sym->flags |= def_flags; 136 break; 137 } 138 if (p[0] == 'n') { 139 sym->def[def].tri = no; 140 sym->flags |= def_flags; 141 break; 142 } 143 conf_warning("symbol value '%s' invalid for %s", p, sym->name); 144 return 1; 145 case S_OTHER: 146 if (*p != '"') { 147 for (p2 = p; *p2 && !isspace(*p2); p2++) 148 ; 149 sym->type = S_STRING; 150 goto done; 151 } 152 /* fall through */ 153 case S_STRING: 154 if (*p++ != '"') 155 break; 156 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { 157 if (*p2 == '"') { 158 *p2 = 0; 159 break; 160 } 161 memmove(p2, p2 + 1, strlen(p2)); 162 } 163 if (!p2) { 164 conf_warning("invalid string found"); 165 return 1; 166 } 167 /* fall through */ 168 case S_INT: 169 case S_HEX: 170 done: 171 if (sym_string_valid(sym, p)) { 172 sym->def[def].val = strdup(p); 173 sym->flags |= def_flags; 174 } else { 175 conf_warning("symbol value '%s' invalid for %s", p, sym->name); 176 return 1; 177 } 178 break; 179 default: 180 ; 181 } 182 return 0; 183 } 184 185 int conf_read_simple(const char *name, int def) 186 { 187 FILE *in = NULL; 188 char line[1024]; 189 char *p, *p2; 190 struct symbol *sym; 191 int i, def_flags; 192 193 if (name) { 194 in = zconf_fopen(name); 195 } else { 196 struct property *prop; 197 198 name = conf_get_configname(); 199 in = zconf_fopen(name); 200 if (in) 201 goto load; 202 sym_add_change_count(1); 203 if (!sym_defconfig_list) { 204 if (modules_sym) 205 sym_calc_value(modules_sym); 206 return 1; 207 } 208 209 for_all_defaults(sym_defconfig_list, prop) { 210 if (expr_calc_value(prop->visible.expr) == no || 211 prop->expr->type != E_SYMBOL) 212 continue; 213 name = conf_expand_value(prop->expr->left.sym->name); 214 in = zconf_fopen(name); 215 if (in) { 216 conf_message(_("using defaults found in %s"), 217 name); 218 goto load; 219 } 220 } 221 } 222 if (!in) 223 return 1; 224 225 load: 226 conf_filename = name; 227 conf_lineno = 0; 228 conf_warnings = 0; 229 conf_unsaved = 0; 230 231 def_flags = SYMBOL_DEF << def; 232 for_all_symbols(i, sym) { 233 sym->flags |= SYMBOL_CHANGED; 234 sym->flags &= ~(def_flags|SYMBOL_VALID); 235 if (sym_is_choice(sym)) 236 sym->flags |= def_flags; 237 switch (sym->type) { 238 case S_INT: 239 case S_HEX: 240 case S_STRING: 241 if (sym->def[def].val) 242 free(sym->def[def].val); 243 /* fall through */ 244 default: 245 sym->def[def].val = NULL; 246 sym->def[def].tri = no; 247 } 248 } 249 250 while (fgets(line, sizeof(line), in)) { 251 conf_lineno++; 252 sym = NULL; 253 if (line[0] == '#') { 254 if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) 255 continue; 256 p = strchr(line + 2 + strlen(CONFIG_), ' '); 257 if (!p) 258 continue; 259 *p++ = 0; 260 if (strncmp(p, "is not set", 10)) 261 continue; 262 if (def == S_DEF_USER) { 263 sym = sym_find(line + 2 + strlen(CONFIG_)); 264 if (!sym) { 265 sym_add_change_count(1); 266 goto setsym; 267 } 268 } else { 269 sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); 270 if (sym->type == S_UNKNOWN) 271 sym->type = S_BOOLEAN; 272 } 273 if (sym->flags & def_flags) { 274 conf_warning("override: reassigning to symbol %s", sym->name); 275 } 276 switch (sym->type) { 277 case S_BOOLEAN: 278 case S_TRISTATE: 279 sym->def[def].tri = no; 280 sym->flags |= def_flags; 281 break; 282 default: 283 ; 284 } 285 } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { 286 p = strchr(line + strlen(CONFIG_), '='); 287 if (!p) 288 continue; 289 *p++ = 0; 290 p2 = strchr(p, '\n'); 291 if (p2) { 292 *p2-- = 0; 293 if (*p2 == '\r') 294 *p2 = 0; 295 } 296 if (def == S_DEF_USER) { 297 sym = sym_find(line + strlen(CONFIG_)); 298 if (!sym) { 299 sym_add_change_count(1); 300 goto setsym; 301 } 302 } else { 303 sym = sym_lookup(line + strlen(CONFIG_), 0); 304 if (sym->type == S_UNKNOWN) 305 sym->type = S_OTHER; 306 } 307 if (sym->flags & def_flags) { 308 conf_warning("override: reassigning to symbol %s", sym->name); 309 } 310 if (conf_set_sym_val(sym, def, def_flags, p)) 311 continue; 312 } else { 313 if (line[0] != '\r' && line[0] != '\n') 314 conf_warning("unexpected data"); 315 continue; 316 } 317 setsym: 318 if (sym && sym_is_choice_value(sym)) { 319 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); 320 switch (sym->def[def].tri) { 321 case no: 322 break; 323 case mod: 324 if (cs->def[def].tri == yes) { 325 conf_warning("%s creates inconsistent choice state", sym->name); 326 cs->flags &= ~def_flags; 327 } 328 break; 329 case yes: 330 if (cs->def[def].tri != no) 331 conf_warning("override: %s changes choice state", sym->name); 332 cs->def[def].val = sym; 333 break; 334 } 335 cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); 336 } 337 } 338 fclose(in); 339 340 if (modules_sym) 341 sym_calc_value(modules_sym); 342 return 0; 343 } 344 345 int conf_read(const char *name) 346 { 347 struct symbol *sym, *choice_sym; 348 struct property *prop; 349 struct expr *e; 350 int i, flags; 351 352 sym_set_change_count(0); 353 354 if (conf_read_simple(name, S_DEF_USER)) 355 return 1; 356 357 for_all_symbols(i, sym) { 358 sym_calc_value(sym); 359 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) 360 goto sym_ok; 361 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { 362 /* check that calculated value agrees with saved value */ 363 switch (sym->type) { 364 case S_BOOLEAN: 365 case S_TRISTATE: 366 if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) 367 break; 368 if (!sym_is_choice(sym)) 369 goto sym_ok; 370 /* fall through */ 371 default: 372 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) 373 goto sym_ok; 374 break; 375 } 376 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) 377 /* no previous value and not saved */ 378 goto sym_ok; 379 conf_unsaved++; 380 /* maybe print value in verbose mode... */ 381 sym_ok: 382 if (!sym_is_choice(sym)) 383 continue; 384 /* The choice symbol only has a set value (and thus is not new) 385 * if all its visible childs have values. 386 */ 387 prop = sym_get_choice_prop(sym); 388 flags = sym->flags; 389 expr_list_for_each_sym(prop->expr, e, choice_sym) 390 if (choice_sym->visible != no) 391 flags &= choice_sym->flags; 392 sym->flags &= flags | ~SYMBOL_DEF_USER; 393 } 394 395 for_all_symbols(i, sym) { 396 if (sym_has_value(sym) && !sym_is_choice_value(sym)) { 397 /* Reset values of generates values, so they'll appear 398 * as new, if they should become visible, but that 399 * doesn't quite work if the Kconfig and the saved 400 * configuration disagree. 401 */ 402 if (sym->visible == no && !conf_unsaved) 403 sym->flags &= ~SYMBOL_DEF_USER; 404 switch (sym->type) { 405 case S_STRING: 406 case S_INT: 407 case S_HEX: 408 /* Reset a string value if it's out of range */ 409 if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) 410 break; 411 sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); 412 conf_unsaved++; 413 break; 414 default: 415 break; 416 } 417 } 418 } 419 420 sym_add_change_count(conf_warnings || conf_unsaved); 421 422 return 0; 423 } 424 425 /* Write a S_STRING */ 426 static void conf_write_string(bool headerfile, const char *name, 427 const char *str, FILE *out) 428 { 429 int l; 430 if (headerfile) 431 fprintf(out, "#define %s%s \"", CONFIG_, name); 432 else 433 fprintf(out, "%s%s=\"", CONFIG_, name); 434 435 while (1) { 436 l = strcspn(str, "\"\\"); 437 if (l) { 438 xfwrite(str, l, 1, out); 439 str += l; 440 } 441 if (!*str) 442 break; 443 fprintf(out, "\\%c", *str++); 444 } 445 fputs("\"\n", out); 446 } 447 448 static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no) 449 { 450 const char *str; 451 452 switch (sym->type) { 453 case S_BOOLEAN: 454 case S_TRISTATE: 455 switch (sym_get_tristate_value(sym)) { 456 case no: 457 if (write_no) 458 fprintf(out, "# %s%s is not set\n", 459 CONFIG_, sym->name); 460 break; 461 case mod: 462 fprintf(out, "%s%s=m\n", CONFIG_, sym->name); 463 break; 464 case yes: 465 fprintf(out, "%s%s=y\n", CONFIG_, sym->name); 466 break; 467 } 468 break; 469 case S_STRING: 470 conf_write_string(false, sym->name, sym_get_string_value(sym), out); 471 break; 472 case S_HEX: 473 case S_INT: 474 str = sym_get_string_value(sym); 475 fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str); 476 break; 477 case S_OTHER: 478 case S_UNKNOWN: 479 break; 480 } 481 } 482 483 /* 484 * Write out a minimal config. 485 * All values that has default values are skipped as this is redundant. 486 */ 487 int conf_write_defconfig(const char *filename) 488 { 489 struct symbol *sym; 490 struct menu *menu; 491 FILE *out; 492 493 out = fopen(filename, "w"); 494 if (!out) 495 return 1; 496 497 sym_clear_all_valid(); 498 499 /* Traverse all menus to find all relevant symbols */ 500 menu = rootmenu.list; 501 502 while (menu != NULL) 503 { 504 sym = menu->sym; 505 if (sym == NULL) { 506 if (!menu_is_visible(menu)) 507 goto next_menu; 508 } else if (!sym_is_choice(sym)) { 509 sym_calc_value(sym); 510 if (!(sym->flags & SYMBOL_WRITE)) 511 goto next_menu; 512 sym->flags &= ~SYMBOL_WRITE; 513 /* If we cannot change the symbol - skip */ 514 if (!sym_is_changable(sym)) 515 goto next_menu; 516 /* If symbol equals to default value - skip */ 517 if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) 518 goto next_menu; 519 520 /* 521 * If symbol is a choice value and equals to the 522 * default for a choice - skip. 523 * But only if value is bool and equal to "y" and 524 * choice is not "optional". 525 * (If choice is "optional" then all values can be "n") 526 */ 527 if (sym_is_choice_value(sym)) { 528 struct symbol *cs; 529 struct symbol *ds; 530 531 cs = prop_get_symbol(sym_get_choice_prop(sym)); 532 ds = sym_choice_default(cs); 533 if (!sym_is_optional(cs) && sym == ds) { 534 if ((sym->type == S_BOOLEAN) && 535 sym_get_tristate_value(sym) == yes) 536 goto next_menu; 537 } 538 } 539 conf_write_symbol(sym, out, true); 540 } 541 next_menu: 542 if (menu->list != NULL) { 543 menu = menu->list; 544 } 545 else if (menu->next != NULL) { 546 menu = menu->next; 547 } else { 548 while ((menu = menu->parent)) { 549 if (menu->next != NULL) { 550 menu = menu->next; 551 break; 552 } 553 } 554 } 555 } 556 fclose(out); 557 return 0; 558 } 559 560 int conf_write(const char *name) 561 { 562 FILE *out; 563 struct symbol *sym; 564 struct menu *menu; 565 const char *basename; 566 const char *str; 567 char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; 568 char *env; 569 570 dirname[0] = 0; 571 if (name && name[0]) { 572 struct stat st; 573 char *slash; 574 575 if (!stat(name, &st) && S_ISDIR(st.st_mode)) { 576 strcpy(dirname, name); 577 strcat(dirname, "/"); 578 basename = conf_get_configname(); 579 } else if ((slash = strrchr(name, '/'))) { 580 int size = slash - name + 1; 581 memcpy(dirname, name, size); 582 dirname[size] = 0; 583 if (slash[1]) 584 basename = slash + 1; 585 else 586 basename = conf_get_configname(); 587 } else 588 basename = name; 589 } else 590 basename = conf_get_configname(); 591 592 sprintf(newname, "%s%s", dirname, basename); 593 env = getenv("KCONFIG_OVERWRITECONFIG"); 594 if (!env || !*env) { 595 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); 596 out = fopen(tmpname, "w"); 597 } else { 598 *tmpname = 0; 599 out = fopen(newname, "w"); 600 } 601 if (!out) 602 return 1; 603 604 fprintf(out, _("#\n" 605 "# Automatically generated make config: don't edit\n" 606 "# %s\n" 607 "#\n"), 608 rootmenu.prompt->text); 609 610 if (!conf_get_changed()) 611 sym_clear_all_valid(); 612 613 menu = rootmenu.list; 614 while (menu) { 615 sym = menu->sym; 616 if (!sym) { 617 if (!menu_is_visible(menu)) 618 goto next; 619 str = menu_get_prompt(menu); 620 fprintf(out, "\n" 621 "#\n" 622 "# %s\n" 623 "#\n", str); 624 } else if (!(sym->flags & SYMBOL_CHOICE)) { 625 sym_calc_value(sym); 626 if (!(sym->flags & SYMBOL_WRITE)) 627 goto next; 628 sym->flags &= ~SYMBOL_WRITE; 629 /* Write config symbol to file */ 630 conf_write_symbol(sym, out, true); 631 } 632 633 next: 634 if (menu->list) { 635 menu = menu->list; 636 continue; 637 } 638 if (menu->next) 639 menu = menu->next; 640 else while ((menu = menu->parent)) { 641 if (menu->next) { 642 menu = menu->next; 643 break; 644 } 645 } 646 } 647 fclose(out); 648 649 if (*tmpname) { 650 strcat(dirname, basename); 651 strcat(dirname, ".old"); 652 rename(newname, dirname); 653 if (rename(tmpname, newname)) 654 return 1; 655 } 656 657 conf_message(_("configuration written to %s"), newname); 658 659 sym_set_change_count(0); 660 661 return 0; 662 } 663 664 static int conf_split_config(void) 665 { 666 const char *name; 667 char path[PATH_MAX+1]; 668 char *s, *d, c; 669 struct symbol *sym; 670 struct stat sb; 671 int res, i, fd; 672 673 name = conf_get_autoconfig_name(); 674 conf_read_simple(name, S_DEF_AUTO); 675 676 if (chdir("include/config")) 677 return 1; 678 679 res = 0; 680 for_all_symbols(i, sym) { 681 sym_calc_value(sym); 682 if ((sym->flags & SYMBOL_AUTO) || !sym->name) 683 continue; 684 if (sym->flags & SYMBOL_WRITE) { 685 if (sym->flags & SYMBOL_DEF_AUTO) { 686 /* 687 * symbol has old and new value, 688 * so compare them... 689 */ 690 switch (sym->type) { 691 case S_BOOLEAN: 692 case S_TRISTATE: 693 if (sym_get_tristate_value(sym) == 694 sym->def[S_DEF_AUTO].tri) 695 continue; 696 break; 697 case S_STRING: 698 case S_HEX: 699 case S_INT: 700 if (!strcmp(sym_get_string_value(sym), 701 sym->def[S_DEF_AUTO].val)) 702 continue; 703 break; 704 default: 705 break; 706 } 707 } else { 708 /* 709 * If there is no old value, only 'no' (unset) 710 * is allowed as new value. 711 */ 712 switch (sym->type) { 713 case S_BOOLEAN: 714 case S_TRISTATE: 715 if (sym_get_tristate_value(sym) == no) 716 continue; 717 break; 718 default: 719 break; 720 } 721 } 722 } else if (!(sym->flags & SYMBOL_DEF_AUTO)) 723 /* There is neither an old nor a new value. */ 724 continue; 725 /* else 726 * There is an old value, but no new value ('no' (unset) 727 * isn't saved in auto.conf, so the old value is always 728 * different from 'no'). 729 */ 730 731 /* Replace all '_' and append ".h" */ 732 s = sym->name; 733 d = path; 734 while ((c = *s++)) { 735 c = tolower(c); 736 *d++ = (c == '_') ? '/' : c; 737 } 738 strcpy(d, ".h"); 739 740 /* Assume directory path already exists. */ 741 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); 742 if (fd == -1) { 743 if (errno != ENOENT) { 744 res = 1; 745 break; 746 } 747 /* 748 * Create directory components, 749 * unless they exist already. 750 */ 751 d = path; 752 while ((d = strchr(d, '/'))) { 753 *d = 0; 754 if (stat(path, &sb) && mkdir(path, 0755)) { 755 res = 1; 756 goto out; 757 } 758 *d++ = '/'; 759 } 760 /* Try it again. */ 761 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); 762 if (fd == -1) { 763 res = 1; 764 break; 765 } 766 } 767 close(fd); 768 } 769 out: 770 if (chdir("../..")) 771 return 1; 772 773 return res; 774 } 775 776 int conf_write_autoconf(void) 777 { 778 struct symbol *sym; 779 const char *str; 780 const char *name; 781 FILE *out, *tristate, *out_h; 782 int i; 783 784 sym_clear_all_valid(); 785 786 file_write_dep("include/config/auto.conf.cmd"); 787 788 if (conf_split_config()) 789 return 1; 790 791 out = fopen(".tmpconfig", "w"); 792 if (!out) 793 return 1; 794 795 tristate = fopen(".tmpconfig_tristate", "w"); 796 if (!tristate) { 797 fclose(out); 798 return 1; 799 } 800 801 out_h = fopen(".tmpconfig.h", "w"); 802 if (!out_h) { 803 fclose(out); 804 fclose(tristate); 805 return 1; 806 } 807 808 fprintf(out, "#\n" 809 "# Automatically generated make config: don't edit\n" 810 "# %s\n" 811 "#\n", 812 rootmenu.prompt->text); 813 fprintf(tristate, "#\n" 814 "# Automatically generated - do not edit\n" 815 "\n"); 816 fprintf(out_h, "/*\n" 817 " * Automatically generated C config: don't edit\n" 818 " * %s\n" 819 " */\n", 820 rootmenu.prompt->text); 821 822 for_all_symbols(i, sym) { 823 sym_calc_value(sym); 824 if (!(sym->flags & SYMBOL_WRITE) || !sym->name) 825 continue; 826 827 /* write symbol to config file */ 828 conf_write_symbol(sym, out, false); 829 830 /* update autoconf and tristate files */ 831 switch (sym->type) { 832 case S_BOOLEAN: 833 case S_TRISTATE: 834 switch (sym_get_tristate_value(sym)) { 835 case no: 836 break; 837 case mod: 838 fprintf(tristate, "%s%s=M\n", 839 CONFIG_, sym->name); 840 fprintf(out_h, "#define %s%s_MODULE 1\n", 841 CONFIG_, sym->name); 842 break; 843 case yes: 844 if (sym->type == S_TRISTATE) 845 fprintf(tristate,"%s%s=Y\n", 846 CONFIG_, sym->name); 847 fprintf(out_h, "#define %s%s 1\n", 848 CONFIG_, sym->name); 849 break; 850 } 851 break; 852 case S_STRING: 853 conf_write_string(true, sym->name, sym_get_string_value(sym), out_h); 854 break; 855 case S_HEX: 856 str = sym_get_string_value(sym); 857 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { 858 fprintf(out_h, "#define %s%s 0x%s\n", 859 CONFIG_, sym->name, str); 860 break; 861 } 862 case S_INT: 863 str = sym_get_string_value(sym); 864 fprintf(out_h, "#define %s%s %s\n", 865 CONFIG_, sym->name, str); 866 break; 867 default: 868 break; 869 } 870 } 871 fclose(out); 872 fclose(tristate); 873 fclose(out_h); 874 875 name = getenv("KCONFIG_AUTOHEADER"); 876 if (!name) 877 name = "include/generated/autoconf.h"; 878 if (rename(".tmpconfig.h", name)) 879 return 1; 880 name = getenv("KCONFIG_TRISTATE"); 881 if (!name) 882 name = "include/config/tristate.conf"; 883 if (rename(".tmpconfig_tristate", name)) 884 return 1; 885 name = conf_get_autoconfig_name(); 886 /* 887 * This must be the last step, kbuild has a dependency on auto.conf 888 * and this marks the successful completion of the previous steps. 889 */ 890 if (rename(".tmpconfig", name)) 891 return 1; 892 893 return 0; 894 } 895 896 static int sym_change_count; 897 static void (*conf_changed_callback)(void); 898 899 void sym_set_change_count(int count) 900 { 901 int _sym_change_count = sym_change_count; 902 sym_change_count = count; 903 if (conf_changed_callback && 904 (bool)_sym_change_count != (bool)count) 905 conf_changed_callback(); 906 } 907 908 void sym_add_change_count(int count) 909 { 910 sym_set_change_count(count + sym_change_count); 911 } 912 913 bool conf_get_changed(void) 914 { 915 return sym_change_count; 916 } 917 918 void conf_set_changed_callback(void (*fn)(void)) 919 { 920 conf_changed_callback = fn; 921 } 922 923 static void randomize_choice_values(struct symbol *csym) 924 { 925 struct property *prop; 926 struct symbol *sym; 927 struct expr *e; 928 int cnt, def; 929 930 /* 931 * If choice is mod then we may have more items selected 932 * and if no then no-one. 933 * In both cases stop. 934 */ 935 if (csym->curr.tri != yes) 936 return; 937 938 prop = sym_get_choice_prop(csym); 939 940 /* count entries in choice block */ 941 cnt = 0; 942 expr_list_for_each_sym(prop->expr, e, sym) 943 cnt++; 944 945 /* 946 * find a random value and set it to yes, 947 * set the rest to no so we have only one set 948 */ 949 def = (rand() % cnt); 950 951 cnt = 0; 952 expr_list_for_each_sym(prop->expr, e, sym) { 953 if (def == cnt++) { 954 sym->def[S_DEF_USER].tri = yes; 955 csym->def[S_DEF_USER].val = sym; 956 } 957 else { 958 sym->def[S_DEF_USER].tri = no; 959 } 960 } 961 csym->flags |= SYMBOL_DEF_USER; 962 /* clear VALID to get value calculated */ 963 csym->flags &= ~(SYMBOL_VALID); 964 } 965 966 static void set_all_choice_values(struct symbol *csym) 967 { 968 struct property *prop; 969 struct symbol *sym; 970 struct expr *e; 971 972 prop = sym_get_choice_prop(csym); 973 974 /* 975 * Set all non-assinged choice values to no 976 */ 977 expr_list_for_each_sym(prop->expr, e, sym) { 978 if (!sym_has_value(sym)) 979 sym->def[S_DEF_USER].tri = no; 980 } 981 csym->flags |= SYMBOL_DEF_USER; 982 /* clear VALID to get value calculated */ 983 csym->flags &= ~(SYMBOL_VALID); 984 } 985 986 void conf_set_all_new_symbols(enum conf_def_mode mode) 987 { 988 struct symbol *sym, *csym; 989 int i, cnt; 990 991 for_all_symbols(i, sym) { 992 if (sym_has_value(sym)) 993 continue; 994 switch (sym_get_type(sym)) { 995 case S_BOOLEAN: 996 case S_TRISTATE: 997 switch (mode) { 998 case def_yes: 999 sym->def[S_DEF_USER].tri = yes; 1000 break; 1001 case def_mod: 1002 sym->def[S_DEF_USER].tri = mod; 1003 break; 1004 case def_no: 1005 sym->def[S_DEF_USER].tri = no; 1006 break; 1007 case def_random: 1008 cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2; 1009 sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt); 1010 break; 1011 default: 1012 continue; 1013 } 1014 if (!(sym_is_choice(sym) && mode == def_random)) 1015 sym->flags |= SYMBOL_DEF_USER; 1016 break; 1017 default: 1018 break; 1019 } 1020 1021 } 1022 1023 sym_clear_all_valid(); 1024 1025 /* 1026 * We have different type of choice blocks. 1027 * If curr.tri equals to mod then we can select several 1028 * choice symbols in one block. 1029 * In this case we do nothing. 1030 * If curr.tri equals yes then only one symbol can be 1031 * selected in a choice block and we set it to yes, 1032 * and the rest to no. 1033 */ 1034 for_all_symbols(i, csym) { 1035 if (sym_has_value(csym) || !sym_is_choice(csym)) 1036 continue; 1037 1038 sym_calc_value(csym); 1039 if (mode == def_random) 1040 randomize_choice_values(csym); 1041 else 1042 set_all_choice_values(csym); 1043 } 1044 } 1045