landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 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 <limits.h> |
| 11 | #include <stdio.h> |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | #include <time.h> |
| 15 | #include <unistd.h> |
| 16 | |
| 17 | #define LKC_DIRECT_LINK |
| 18 | #include "lkc.h" |
| 19 | |
| 20 | static void conf_warning(const char *fmt, ...) |
| 21 | __attribute__ ((format (printf, 1, 2))); |
| 22 | |
| 23 | static const char *conf_filename; |
| 24 | static int conf_lineno, conf_warnings, conf_unsaved; |
| 25 | |
| 26 | #ifndef conf_defname |
| 27 | const char conf_defname[] = "arch/$ARCH/defconfig"; |
| 28 | #endif |
| 29 | |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 30 | #ifndef CONFIG_PREFIX |
| 31 | #define CONFIG_PREFIX "CONFIG_" |
| 32 | #endif |
| 33 | |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 34 | static void conf_warning(const char *fmt, ...) |
| 35 | { |
| 36 | va_list ap; |
| 37 | va_start(ap, fmt); |
| 38 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); |
| 39 | vfprintf(stderr, fmt, ap); |
| 40 | fprintf(stderr, "\n"); |
| 41 | va_end(ap); |
| 42 | conf_warnings++; |
| 43 | } |
| 44 | |
| 45 | const char *conf_get_configname(void) |
| 46 | { |
| 47 | char *name = getenv("KCONFIG_CONFIG"); |
| 48 | |
| 49 | return name ? name : ".config"; |
| 50 | } |
| 51 | |
| 52 | static char *conf_expand_value(const char *in) |
| 53 | { |
| 54 | struct symbol *sym; |
| 55 | const char *src; |
| 56 | static char res_value[SYMBOL_MAXLENGTH]; |
| 57 | char *dst, name[SYMBOL_MAXLENGTH]; |
| 58 | |
| 59 | res_value[0] = 0; |
| 60 | dst = name; |
| 61 | while ((src = strchr(in, '$'))) { |
| 62 | strncat(res_value, in, src - in); |
| 63 | src++; |
| 64 | dst = name; |
| 65 | while (isalnum(*src) || *src == '_') |
| 66 | *dst++ = *src++; |
| 67 | *dst = 0; |
| 68 | sym = sym_lookup(name, 0); |
| 69 | sym_calc_value(sym); |
| 70 | strcat(res_value, sym_get_string_value(sym)); |
| 71 | in = src; |
| 72 | } |
| 73 | strcat(res_value, in); |
| 74 | |
| 75 | return res_value; |
| 76 | } |
| 77 | |
| 78 | char *conf_get_default_confname(void) |
| 79 | { |
| 80 | struct stat buf; |
| 81 | static char fullname[PATH_MAX+1]; |
| 82 | char *env, *name; |
| 83 | |
| 84 | name = conf_expand_value(conf_defname); |
| 85 | env = getenv(SRCTREE); |
| 86 | if (env) { |
| 87 | sprintf(fullname, "%s/%s", env, name); |
| 88 | if (!stat(fullname, &buf)) |
| 89 | return fullname; |
| 90 | } |
| 91 | return name; |
| 92 | } |
| 93 | |
| 94 | int conf_read_simple(const char *name, int def) |
| 95 | { |
| 96 | FILE *in = NULL; |
| 97 | char line[1024]; |
| 98 | char *p, *p2; |
| 99 | struct symbol *sym; |
| 100 | int i, def_flags; |
| 101 | |
| 102 | if (name) { |
| 103 | in = zconf_fopen(name); |
| 104 | } else { |
| 105 | struct property *prop; |
| 106 | |
| 107 | name = conf_get_configname(); |
| 108 | in = zconf_fopen(name); |
| 109 | if (in) |
| 110 | goto load; |
| 111 | sym_change_count++; |
| 112 | if (!sym_defconfig_list) |
| 113 | return 1; |
| 114 | |
| 115 | for_all_defaults(sym_defconfig_list, prop) { |
| 116 | if (expr_calc_value(prop->visible.expr) == no || |
| 117 | prop->expr->type != E_SYMBOL) |
| 118 | continue; |
| 119 | name = conf_expand_value(prop->expr->left.sym->name); |
| 120 | in = zconf_fopen(name); |
| 121 | if (in) { |
| 122 | printf(_("#\n" |
| 123 | "# using defaults found in %s\n" |
| 124 | "#\n"), name); |
| 125 | goto load; |
| 126 | } |
| 127 | } |
| 128 | } |
| 129 | if (!in) |
| 130 | return 1; |
| 131 | |
| 132 | load: |
| 133 | conf_filename = name; |
| 134 | conf_lineno = 0; |
| 135 | conf_warnings = 0; |
| 136 | conf_unsaved = 0; |
| 137 | |
| 138 | def_flags = SYMBOL_DEF << def; |
| 139 | for_all_symbols(i, sym) { |
| 140 | sym->flags |= SYMBOL_CHANGED; |
| 141 | sym->flags &= ~(def_flags|SYMBOL_VALID); |
| 142 | if (sym_is_choice(sym)) |
| 143 | sym->flags |= def_flags; |
| 144 | switch (sym->type) { |
| 145 | case S_INT: |
| 146 | case S_HEX: |
| 147 | case S_STRING: |
| 148 | if (sym->def[def].val) |
| 149 | free(sym->def[def].val); |
| 150 | default: |
| 151 | sym->def[def].val = NULL; |
| 152 | sym->def[def].tri = no; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | while (fgets(line, sizeof(line), in)) { |
| 157 | conf_lineno++; |
| 158 | sym = NULL; |
| 159 | switch (line[0]) { |
| 160 | case '#': |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 161 | if (line[1]!=' ' || memcmp(line + 2, CONFIG_PREFIX, |
| 162 | strlen(CONFIG_PREFIX))) { |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 163 | continue; |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 164 | } |
| 165 | p = strchr(line + 2 + strlen(CONFIG_PREFIX), ' '); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 166 | if (!p) |
| 167 | continue; |
| 168 | *p++ = 0; |
| 169 | if (strncmp(p, "is not set", 10)) |
| 170 | continue; |
| 171 | if (def == S_DEF_USER) { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 172 | sym = sym_find(line + 2 + strlen(CONFIG_PREFIX)); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 173 | if (!sym) { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 174 | conf_warning("trying to assign nonexistent symbol %s", line + 2 + strlen(CONFIG_PREFIX)); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 175 | break; |
| 176 | } |
| 177 | } else { |
| 178 | sym = sym_lookup(line + 9, 0); |
| 179 | if (sym->type == S_UNKNOWN) |
| 180 | sym->type = S_BOOLEAN; |
| 181 | } |
| 182 | if (sym->flags & def_flags) { |
| 183 | conf_warning("trying to reassign symbol %s", sym->name); |
| 184 | break; |
| 185 | } |
| 186 | switch (sym->type) { |
| 187 | case S_BOOLEAN: |
| 188 | case S_TRISTATE: |
| 189 | sym->def[def].tri = no; |
| 190 | sym->flags |= def_flags; |
| 191 | break; |
| 192 | default: |
| 193 | ; |
| 194 | } |
| 195 | break; |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 196 | case 'A' ... 'Z': |
| 197 | if (memcmp(line, CONFIG_PREFIX, strlen(CONFIG_PREFIX))) { |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 198 | conf_warning("unexpected data"); |
| 199 | continue; |
| 200 | } |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 201 | p = strchr(line + strlen(CONFIG_PREFIX), '='); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 202 | if (!p) |
| 203 | continue; |
| 204 | *p++ = 0; |
| 205 | p2 = strchr(p, '\n'); |
| 206 | if (p2) { |
| 207 | *p2-- = 0; |
| 208 | if (*p2 == '\r') |
| 209 | *p2 = 0; |
| 210 | } |
| 211 | if (def == S_DEF_USER) { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 212 | sym = sym_find(line + strlen(CONFIG_PREFIX)); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 213 | if (!sym) { |
| 214 | conf_warning("trying to assign nonexistent symbol %s", line + 7); |
| 215 | break; |
| 216 | } |
| 217 | } else { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 218 | sym = sym_lookup(line + strlen(CONFIG_PREFIX), 0); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 219 | if (sym->type == S_UNKNOWN) |
| 220 | sym->type = S_OTHER; |
| 221 | } |
| 222 | if (sym->flags & def_flags) { |
| 223 | conf_warning("trying to reassign symbol %s", sym->name); |
| 224 | break; |
| 225 | } |
| 226 | switch (sym->type) { |
| 227 | case S_TRISTATE: |
| 228 | if (p[0] == 'm') { |
| 229 | sym->def[def].tri = mod; |
| 230 | sym->flags |= def_flags; |
| 231 | break; |
| 232 | } |
| 233 | case S_BOOLEAN: |
| 234 | if (p[0] == 'y') { |
| 235 | sym->def[def].tri = yes; |
| 236 | sym->flags |= def_flags; |
| 237 | break; |
| 238 | } |
| 239 | if (p[0] == 'n') { |
| 240 | sym->def[def].tri = no; |
| 241 | sym->flags |= def_flags; |
| 242 | break; |
| 243 | } |
| 244 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); |
| 245 | break; |
| 246 | case S_OTHER: |
| 247 | if (*p != '"') { |
| 248 | for (p2 = p; *p2 && !isspace(*p2); p2++) |
| 249 | ; |
| 250 | sym->type = S_STRING; |
| 251 | goto done; |
| 252 | } |
| 253 | case S_STRING: |
| 254 | if (*p++ != '"') |
| 255 | break; |
| 256 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { |
| 257 | if (*p2 == '"') { |
| 258 | *p2 = 0; |
| 259 | break; |
| 260 | } |
| 261 | memmove(p2, p2 + 1, strlen(p2)); |
| 262 | } |
| 263 | if (!p2) { |
| 264 | conf_warning("invalid string found"); |
| 265 | continue; |
| 266 | } |
| 267 | case S_INT: |
| 268 | case S_HEX: |
| 269 | done: |
| 270 | if (sym_string_valid(sym, p)) { |
| 271 | sym->def[def].val = strdup(p); |
| 272 | sym->flags |= def_flags; |
| 273 | } else { |
| 274 | conf_warning("symbol value '%s' invalid for %s", p, sym->name); |
| 275 | continue; |
| 276 | } |
| 277 | break; |
| 278 | default: |
| 279 | ; |
| 280 | } |
| 281 | break; |
| 282 | case '\r': |
| 283 | case '\n': |
| 284 | break; |
| 285 | default: |
| 286 | conf_warning("unexpected data"); |
| 287 | continue; |
| 288 | } |
| 289 | if (sym && sym_is_choice_value(sym)) { |
| 290 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); |
| 291 | switch (sym->def[def].tri) { |
| 292 | case no: |
| 293 | break; |
| 294 | case mod: |
| 295 | if (cs->def[def].tri == yes) { |
| 296 | conf_warning("%s creates inconsistent choice state", sym->name); |
| 297 | cs->flags &= ~def_flags; |
| 298 | } |
| 299 | break; |
| 300 | case yes: |
| 301 | if (cs->def[def].tri != no) { |
| 302 | conf_warning("%s creates inconsistent choice state", sym->name); |
| 303 | cs->flags &= ~def_flags; |
| 304 | } else |
| 305 | cs->def[def].val = sym; |
| 306 | break; |
| 307 | } |
| 308 | cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri); |
| 309 | } |
| 310 | } |
| 311 | fclose(in); |
| 312 | |
| 313 | if (modules_sym) |
| 314 | sym_calc_value(modules_sym); |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | int conf_read(const char *name) |
| 319 | { |
| 320 | struct symbol *sym; |
| 321 | struct property *prop; |
| 322 | struct expr *e; |
| 323 | int i, flags; |
| 324 | |
| 325 | sym_change_count = 0; |
| 326 | |
| 327 | if (conf_read_simple(name, S_DEF_USER)) |
| 328 | return 1; |
| 329 | |
| 330 | for_all_symbols(i, sym) { |
| 331 | sym_calc_value(sym); |
| 332 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) |
| 333 | goto sym_ok; |
| 334 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { |
| 335 | /* check that calculated value agrees with saved value */ |
| 336 | switch (sym->type) { |
| 337 | case S_BOOLEAN: |
| 338 | case S_TRISTATE: |
| 339 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) |
| 340 | break; |
| 341 | if (!sym_is_choice(sym)) |
| 342 | goto sym_ok; |
| 343 | default: |
| 344 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) |
| 345 | goto sym_ok; |
| 346 | break; |
| 347 | } |
| 348 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) |
| 349 | /* no previous value and not saved */ |
| 350 | goto sym_ok; |
| 351 | conf_unsaved++; |
| 352 | /* maybe print value in verbose mode... */ |
| 353 | sym_ok: |
| 354 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) { |
| 355 | if (sym->visible == no) |
| 356 | sym->flags &= ~SYMBOL_DEF_USER; |
| 357 | switch (sym->type) { |
| 358 | case S_STRING: |
| 359 | case S_INT: |
| 360 | case S_HEX: |
| 361 | if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val)) |
| 362 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); |
| 363 | default: |
| 364 | break; |
| 365 | } |
| 366 | } |
| 367 | if (!sym_is_choice(sym)) |
| 368 | continue; |
| 369 | prop = sym_get_choice_prop(sym); |
| 370 | flags = sym->flags; |
| 371 | for (e = prop->expr; e; e = e->left.expr) |
| 372 | if (e->right.sym->visible != no) |
| 373 | flags &= e->right.sym->flags; |
| 374 | sym->flags &= flags | ~SYMBOL_DEF_USER; |
| 375 | } |
| 376 | |
| 377 | sym_change_count += conf_warnings || conf_unsaved; |
| 378 | |
| 379 | return 0; |
| 380 | } |
| 381 | |
| 382 | struct menu *next_menu(struct menu *menu) |
| 383 | { |
| 384 | if (menu->list) return menu->list; |
| 385 | do { |
| 386 | if (menu->next) { |
| 387 | menu = menu->next; |
| 388 | break; |
| 389 | } |
| 390 | } while ((menu = menu->parent)); |
| 391 | |
| 392 | return menu; |
| 393 | } |
| 394 | |
| 395 | #define SYMBOL_FORCEWRITE (1<<31) |
| 396 | |
| 397 | int conf_write(const char *name) |
| 398 | { |
| 399 | FILE *out; |
| 400 | struct symbol *sym; |
| 401 | struct menu *menu; |
| 402 | const char *basename; |
| 403 | char dirname[128], tmpname[128], newname[128]; |
| 404 | int type, l, writetype; |
| 405 | const char *str; |
| 406 | time_t now; |
| 407 | int use_timestamp = 1; |
| 408 | char *env; |
| 409 | |
| 410 | dirname[0] = 0; |
| 411 | if (name && name[0]) { |
| 412 | struct stat st; |
| 413 | char *slash; |
| 414 | |
| 415 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) { |
| 416 | strcpy(dirname, name); |
| 417 | strcat(dirname, "/"); |
| 418 | basename = conf_get_configname(); |
| 419 | } else if ((slash = strrchr(name, '/'))) { |
| 420 | int size = slash - name + 1; |
| 421 | memcpy(dirname, name, size); |
| 422 | dirname[size] = 0; |
| 423 | if (slash[1]) |
| 424 | basename = slash + 1; |
| 425 | else |
| 426 | basename = conf_get_configname(); |
| 427 | } else |
| 428 | basename = name; |
| 429 | } else |
| 430 | basename = conf_get_configname(); |
| 431 | |
| 432 | sprintf(newname, "%s%s", dirname, basename); |
| 433 | env = getenv("KCONFIG_OVERWRITECONFIG"); |
| 434 | if (!env || !*env) { |
| 435 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); |
| 436 | out = fopen(tmpname, "w"); |
| 437 | } else { |
| 438 | *tmpname = 0; |
| 439 | out = fopen(newname, "w"); |
| 440 | } |
| 441 | if (!out) |
| 442 | return 1; |
| 443 | |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 444 | sym = sym_lookup("KCONFIG_VERSION", 0); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 445 | sym_calc_value(sym); |
| 446 | time(&now); |
| 447 | env = getenv("KCONFIG_NOTIMESTAMP"); |
| 448 | if (env && *env) |
| 449 | use_timestamp = 0; |
| 450 | |
| 451 | fprintf(out, _("#\n" |
| 452 | "# Automatically generated make config: don't edit\n" |
| 453 | "# "PROJECT_NAME" version: %s\n" |
| 454 | "%s%s" |
| 455 | "#\n"), |
| 456 | sym_get_string_value(sym), |
| 457 | use_timestamp ? "# " : "", |
| 458 | use_timestamp ? ctime(&now) : ""); |
| 459 | |
| 460 | if (!sym_change_count) |
| 461 | sym_clear_all_valid(); |
| 462 | |
| 463 | // Write out all symbols (even in closed sub-menus). |
| 464 | if (1) { |
| 465 | for (menu = rootmenu.list; menu; menu = next_menu(menu)) |
| 466 | if (menu->sym) menu->sym->flags |= SYMBOL_FORCEWRITE; |
| 467 | writetype = SYMBOL_FORCEWRITE; |
| 468 | |
| 469 | // Don't write out symbols in closed menus. |
| 470 | |
| 471 | } else writetype = SYMBOL_WRITE; |
| 472 | |
| 473 | |
| 474 | menu = rootmenu.list; |
| 475 | while (menu) { |
| 476 | sym = menu->sym; |
| 477 | if (!sym) { |
| 478 | if (!menu_is_visible(menu)) |
| 479 | goto next; |
| 480 | str = menu_get_prompt(menu); |
| 481 | fprintf(out, "\n" |
| 482 | "#\n" |
| 483 | "# %s\n" |
| 484 | "#\n", str); |
| 485 | } else if (!(sym->flags & SYMBOL_CHOICE)) { |
| 486 | sym_calc_value(sym); |
| 487 | if (!(sym->flags & writetype)) |
| 488 | goto next; |
| 489 | sym->flags &= ~writetype; |
| 490 | type = sym->type; |
| 491 | if (type == S_TRISTATE) { |
| 492 | sym_calc_value(modules_sym); |
| 493 | if (modules_sym->curr.tri == no) |
| 494 | type = S_BOOLEAN; |
| 495 | } |
| 496 | switch (type) { |
| 497 | case S_BOOLEAN: |
| 498 | case S_TRISTATE: |
| 499 | switch (sym_get_tristate_value(sym)) { |
| 500 | case no: |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 501 | fprintf(out, "# "CONFIG_PREFIX"%s is not set\n", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 502 | break; |
| 503 | case mod: |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 504 | fprintf(out, CONFIG_PREFIX"%s=m\n", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 505 | break; |
| 506 | case yes: |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 507 | fprintf(out, CONFIG_PREFIX"%s=y\n", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 508 | break; |
| 509 | } |
| 510 | break; |
| 511 | case S_STRING: |
| 512 | str = sym_get_string_value(sym); |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 513 | fprintf(out, CONFIG_PREFIX"%s=\"", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 514 | while (1) { |
| 515 | l = strcspn(str, "\"\\"); |
| 516 | if (l) { |
| 517 | fwrite(str, l, 1, out); |
| 518 | str += l; |
| 519 | } |
| 520 | if (!*str) |
| 521 | break; |
| 522 | fprintf(out, "\\%c", *str++); |
| 523 | } |
| 524 | fputs("\"\n", out); |
| 525 | break; |
| 526 | case S_HEX: |
| 527 | str = sym_get_string_value(sym); |
| 528 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 529 | fprintf(out, CONFIG_PREFIX"%s=%s\n", sym->name, *str ? str : "0"); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 530 | break; |
| 531 | } |
| 532 | case S_INT: |
| 533 | str = sym_get_string_value(sym); |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 534 | fprintf(out, CONFIG_PREFIX"%s=%s\n", sym->name, *str ? str : "0"); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 535 | break; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | next: |
| 540 | if (writetype == SYMBOL_WRITE) { |
| 541 | if (menu->list) { |
| 542 | menu = menu->list; |
| 543 | continue; |
| 544 | } |
| 545 | if (menu->next) |
| 546 | menu = menu->next; |
| 547 | else while ((menu = menu->parent)) { |
| 548 | if (menu->next) { |
| 549 | menu = menu->next; |
| 550 | break; |
| 551 | } |
| 552 | } |
| 553 | } else |
| 554 | menu = next_menu(menu); |
| 555 | } |
| 556 | fclose(out); |
| 557 | |
| 558 | if (*tmpname) { |
| 559 | strcat(dirname, basename); |
| 560 | strcat(dirname, ".old"); |
| 561 | rename(newname, dirname); |
| 562 | if (rename(tmpname, newname)) |
| 563 | return 1; |
| 564 | } |
| 565 | |
| 566 | printf(_("#\n" |
| 567 | "# configuration written to %s\n" |
| 568 | "#\n"), newname); |
| 569 | |
| 570 | sym_change_count = 0; |
| 571 | |
| 572 | return 0; |
| 573 | } |
| 574 | |
| 575 | int conf_split_config(void) |
| 576 | { |
| 577 | char *name, path[128]; |
| 578 | char *s, *d, c; |
| 579 | struct symbol *sym; |
| 580 | struct stat sb; |
| 581 | int res, i, fd; |
| 582 | |
| 583 | name = getenv("KCONFIG_AUTOCONFIG"); |
| 584 | if (!name) |
| 585 | name = "include/config/auto.conf"; |
| 586 | conf_read_simple(name, S_DEF_AUTO); |
| 587 | |
| 588 | if (chdir("include/config")) |
| 589 | return 1; |
| 590 | |
| 591 | res = 0; |
| 592 | for_all_symbols(i, sym) { |
| 593 | sym_calc_value(sym); |
| 594 | if ((sym->flags & SYMBOL_AUTO) || !sym->name) |
| 595 | continue; |
| 596 | if (sym->flags & SYMBOL_WRITE) { |
| 597 | if (sym->flags & SYMBOL_DEF_AUTO) { |
| 598 | /* |
| 599 | * symbol has old and new value, |
| 600 | * so compare them... |
| 601 | */ |
| 602 | switch (sym->type) { |
| 603 | case S_BOOLEAN: |
| 604 | case S_TRISTATE: |
| 605 | if (sym_get_tristate_value(sym) == |
| 606 | sym->def[S_DEF_AUTO].tri) |
| 607 | continue; |
| 608 | break; |
| 609 | case S_STRING: |
| 610 | case S_HEX: |
| 611 | case S_INT: |
| 612 | if (!strcmp(sym_get_string_value(sym), |
| 613 | sym->def[S_DEF_AUTO].val)) |
| 614 | continue; |
| 615 | break; |
| 616 | default: |
| 617 | break; |
| 618 | } |
| 619 | } else { |
| 620 | /* |
| 621 | * If there is no old value, only 'no' (unset) |
| 622 | * is allowed as new value. |
| 623 | */ |
| 624 | switch (sym->type) { |
| 625 | case S_BOOLEAN: |
| 626 | case S_TRISTATE: |
| 627 | if (sym_get_tristate_value(sym) == no) |
| 628 | continue; |
| 629 | break; |
| 630 | default: |
| 631 | break; |
| 632 | } |
| 633 | } |
| 634 | } else if (!(sym->flags & SYMBOL_DEF_AUTO)) |
| 635 | /* There is neither an old nor a new value. */ |
| 636 | continue; |
| 637 | /* else |
| 638 | * There is an old value, but no new value ('no' (unset) |
| 639 | * isn't saved in auto.conf, so the old value is always |
| 640 | * different from 'no'). |
| 641 | */ |
| 642 | |
| 643 | /* Replace all '_' and append ".h" */ |
| 644 | s = sym->name; |
| 645 | d = path; |
| 646 | while ((c = *s++)) { |
| 647 | c = tolower(c); |
| 648 | *d++ = (c == '_') ? '/' : c; |
| 649 | } |
| 650 | strcpy(d, ".h"); |
| 651 | |
| 652 | /* Assume directory path already exists. */ |
| 653 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
| 654 | if (fd == -1) { |
| 655 | if (errno != ENOENT) { |
| 656 | res = 1; |
| 657 | break; |
| 658 | } |
| 659 | /* |
| 660 | * Create directory components, |
| 661 | * unless they exist already. |
| 662 | */ |
| 663 | d = path; |
| 664 | while ((d = strchr(d, '/'))) { |
| 665 | *d = 0; |
| 666 | if (stat(path, &sb) && mkdir(path, 0755)) { |
| 667 | res = 1; |
| 668 | goto out; |
| 669 | } |
| 670 | *d++ = '/'; |
| 671 | } |
| 672 | /* Try it again. */ |
| 673 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
| 674 | if (fd == -1) { |
| 675 | res = 1; |
| 676 | break; |
| 677 | } |
| 678 | } |
| 679 | close(fd); |
| 680 | } |
| 681 | out: |
| 682 | if (chdir("../..")) |
| 683 | return 1; |
| 684 | |
| 685 | return res; |
| 686 | } |
| 687 | |
| 688 | int conf_write_autoconf(void) |
| 689 | { |
| 690 | struct symbol *sym; |
| 691 | const char *str; |
| 692 | char *name; |
| 693 | FILE *out, *out_h; |
| 694 | time_t now; |
| 695 | int i, l; |
| 696 | |
| 697 | sym_clear_all_valid(); |
| 698 | |
| 699 | file_write_dep("include/config/auto.conf.cmd"); |
| 700 | |
| 701 | if (conf_split_config()) |
| 702 | return 1; |
| 703 | |
| 704 | out = fopen(".tmpconfig", "w"); |
| 705 | if (!out) |
| 706 | return 1; |
| 707 | |
| 708 | out_h = fopen(".tmpconfig.h", "w"); |
| 709 | if (!out_h) { |
| 710 | fclose(out); |
| 711 | return 1; |
| 712 | } |
| 713 | |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 714 | sym = sym_lookup("KCONFIG_VERSION", 0); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 715 | sym_calc_value(sym); |
| 716 | time(&now); |
| 717 | fprintf(out, "#\n" |
| 718 | "# Automatically generated make config: don't edit\n" |
| 719 | "# "PROJECT_NAME" version: %s\n" |
| 720 | "# %s" |
| 721 | "#\n", |
| 722 | sym_get_string_value(sym), ctime(&now)); |
| 723 | fprintf(out_h, "/*\n" |
| 724 | " * Automatically generated C config: don't edit\n" |
| 725 | " * "PROJECT_NAME" version: %s\n" |
| 726 | " * %s" |
| 727 | " */\n" |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 728 | // "#define AUTOCONF_INCLUDED\n" |
| 729 | , sym_get_string_value(sym), ctime(&now)); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 730 | |
| 731 | for_all_symbols(i, sym) { |
| 732 | sym_calc_value(sym); |
| 733 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name) |
| 734 | continue; |
| 735 | switch (sym->type) { |
| 736 | case S_BOOLEAN: |
| 737 | case S_TRISTATE: |
| 738 | switch (sym_get_tristate_value(sym)) { |
| 739 | case no: |
| 740 | break; |
| 741 | case mod: |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 742 | fprintf(out, CONFIG_PREFIX"%s=m\n", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 743 | fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); |
| 744 | break; |
| 745 | case yes: |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 746 | fprintf(out, CONFIG_PREFIX"%s=y\n", sym->name); |
| 747 | fprintf(out_h, "#define "CONFIG_PREFIX"%s 1\n", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 748 | break; |
| 749 | } |
| 750 | break; |
| 751 | case S_STRING: |
| 752 | str = sym_get_string_value(sym); |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 753 | fprintf(out, CONFIG_PREFIX"%s=\"", sym->name); |
| 754 | fprintf(out_h, "#define "CONFIG_PREFIX"%s \"", sym->name); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 755 | while (1) { |
| 756 | l = strcspn(str, "\"\\"); |
| 757 | if (l) { |
| 758 | fwrite(str, l, 1, out); |
| 759 | fwrite(str, l, 1, out_h); |
| 760 | str += l; |
| 761 | } |
| 762 | if (!*str) |
| 763 | break; |
| 764 | fprintf(out, "\\%c", *str); |
| 765 | fprintf(out_h, "\\%c", *str); |
| 766 | str++; |
| 767 | } |
| 768 | fputs("\"\n", out); |
| 769 | fputs("\"\n", out_h); |
| 770 | break; |
| 771 | case S_HEX: |
| 772 | str = sym_get_string_value(sym); |
| 773 | if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 774 | fprintf(out, CONFIG_PREFIX"%s=%s\n", sym->name, str); |
| 775 | fprintf(out_h, "#define "CONFIG_PREFIX"%s 0x%s\n", sym->name, str); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 776 | break; |
| 777 | } |
| 778 | case S_INT: |
| 779 | str = sym_get_string_value(sym); |
Rob Landley | d989df3 | 2007-03-15 13:59:06 -0400 | [diff] [blame] | 780 | fprintf(out, CONFIG_PREFIX"%s=%s\n", sym->name, str); |
| 781 | fprintf(out_h, "#define "CONFIG_PREFIX"%s %s\n", sym->name, str); |
landley | 5257cf5 | 2006-10-31 23:30:06 -0500 | [diff] [blame] | 782 | break; |
| 783 | default: |
| 784 | break; |
| 785 | } |
| 786 | } |
| 787 | fclose(out); |
| 788 | fclose(out_h); |
| 789 | |
| 790 | name = getenv("KCONFIG_AUTOHEADER"); |
| 791 | if (!name) |
| 792 | name = "include/linux/autoconf.h"; |
| 793 | if (rename(".tmpconfig.h", name)) |
| 794 | return 1; |
| 795 | name = getenv("KCONFIG_AUTOCONFIG"); |
| 796 | if (!name) |
| 797 | name = "include/config/auto.conf"; |
| 798 | /* |
| 799 | * This must be the last step, kbuild has a dependency on auto.conf |
| 800 | * and this marks the successful completion of the previous steps. |
| 801 | */ |
| 802 | if (rename(".tmpconfig", name)) |
| 803 | return 1; |
| 804 | |
| 805 | return 0; |
| 806 | } |