ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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Just return if nothing is left */ p = strrchr(tmp, '/'); if (!p) return 0; *(p + 1) = 0; /* Just in case it is an absolute path */ p = tmp; while (*p == '/') p++; while ((p = strchr(p, '/'))) { *p = 0; /* skip if the directory exists */ if (!is_dir(tmp) && mkdir(tmp, 0755)) return -1; *p = '/'; while (*p == '/') p++; } return 0; } static char depfile_path[PATH_MAX]; static size_t depfile_prefix_len; /* touch depfile for symbol 'name' */ static int conf_touch_dep(const char *name) { int fd, ret; const char *s; char *d, c; /* check overflow: prefix + name + ".h" + '\0' must fit in buffer. */ if (depfile_prefix_len + strlen(name) + 3 > sizeof(depfile_path)) return -1; d = depfile_path + depfile_prefix_len; s = name; while ((c = *s++)) *d++ = (c == '_') ? '/' : tolower(c); strcpy(d, ".h"); /* Assume directory path already exists. */ fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); if (fd == -1) { if (errno != ENOENT) return -1; ret = make_parent_dir(depfile_path); if (ret) return ret; /* Try it again. */ fd = open(depfile_path, O_WRONLY | O_CREAT | O_TRUNC, 0644); if (fd == -1) return -1; } close(fd); return 0; } struct conf_printer { void (*print_symbol)(FILE *, struct symbol *, const char *, void *); void (*print_comment)(FILE *, const char *, void *); }; static void conf_warning(const char *fmt, ...) __attribute__ ((format (printf, 1, 2))); static void conf_message(const char *fmt, ...) __attribute__ ((format (printf, 1, 2))); static const char *conf_filename; static int conf_lineno, conf_warnings; static void conf_warning(const char *fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno); vfprintf(stderr, fmt, ap); fprintf(stderr, "\n"); va_end(ap); conf_warnings++; } static void conf_default_message_callback(const char *s) { printf("#\n# "); printf("%s", s); printf("\n#\n"); } static void (*conf_message_callback)(const char *s) = conf_default_message_callback; void conf_set_message_callback(void (*fn)(const char *s)) { conf_message_callback = fn; } static void conf_message(const char *fmt, ...) { va_list ap; char buf[4096]; if (!conf_message_callback) return; va_start(ap, fmt); vsnprintf(buf, sizeof(buf), fmt, ap); conf_message_callback(buf); va_end(ap); } const char *conf_get_configname(void) { char *name = getenv("KCONFIG_CONFIG"); return name ? name : ".config"; } static const char *conf_get_autoconfig_name(void) { char *name = getenv("KCONFIG_AUTOCONFIG"); return name ? name : "include/config/auto.conf"; } static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) { char *p2; switch (sym->type) { case S_TRISTATE: if (p[0] == 'm') { sym->def[def].tri = mod; sym->flags |= def_flags; break; } /* fall through */ case S_BOOLEAN: if (p[0] == 'y') { sym->def[def].tri = yes; sym->flags |= def_flags; break; } if (p[0] == 'n') { sym->def[def].tri = no; sym->flags |= def_flags; break; } if (def != S_DEF_AUTO) conf_warning("symbol value '%s' invalid for %s", p, sym->name); return 1; case S_STRING: if (*p++ != '"') break; for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) { if (*p2 == '"') { *p2 = 0; break; } memmove(p2, p2 + 1, strlen(p2)); } if (!p2) { if (def != S_DEF_AUTO) conf_warning("invalid string found"); return 1; } /* fall through */ case S_INT: case S_HEX: if (sym_string_valid(sym, p)) { sym->def[def].val = xstrdup(p); sym->flags |= def_flags; } else { if (def != S_DEF_AUTO) conf_warning("symbol value '%s' invalid for %s", p, sym->name); return 1; } break; default: ; } return 0; } #define LINE_GROWTH 16 static int add_byte(int c, char **lineptr, size_t slen, size_t *n) { char *nline; size_t new_size = slen + 1; if (new_size > *n) { new_size += LINE_GROWTH - 1; new_size *= 2; nline = xrealloc(*lineptr, new_size); if (!nline) return -1; *lineptr = nline; *n = new_size; } (*lineptr)[slen] = c; return 0; } static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream) { char *line = *lineptr; size_t slen = 0; for (;;) { int c = getc(stream); switch (c) { case '\n': if (add_byte(c, &line, slen, n) < 0) goto e_out; slen++; /* fall through */ case EOF: if (add_byte('\0', &line, slen, n) < 0) goto e_out; *lineptr = line; if (slen == 0) return -1; return slen; default: if (add_byte(c, &line, slen, n) < 0) goto e_out; slen++; } } e_out: line[slen-1] = '\0'; *lineptr = line; return -1; } int conf_read_simple(const char *name, int def) { FILE *in = NULL; char *line = NULL; size_t line_asize = 0; char *p, *p2; struct symbol *sym; int i, def_flags; if (name) { in = zconf_fopen(name); } else { struct property *prop; name = conf_get_configname(); in = zconf_fopen(name); if (in) goto load; sym_add_change_count(1); if (!sym_defconfig_list) return 1; for_all_defaults(sym_defconfig_list, prop) { if (expr_calc_value(prop->visible.expr) == no || prop->expr->type != E_SYMBOL) continue; sym_calc_value(prop->expr->left.sym); name = sym_get_string_value(prop->expr->left.sym); in = zconf_fopen(name); if (in) { conf_message("using defaults found in %s", name); goto load; } } } if (!in) return 1; load: conf_filename = name; conf_lineno = 0; conf_warnings = 0; def_flags = SYMBOL_DEF << def; for_all_symbols(i, sym) { sym->flags |= SYMBOL_CHANGED; sym->flags &= ~(def_flags|SYMBOL_VALID); if (sym_is_choice(sym)) sym->flags |= def_flags; switch (sym->type) { case S_INT: case S_HEX: case S_STRING: if (sym->def[def].val) free(sym->def[def].val); /* fall through */ default: sym->def[def].val = NULL; sym->def[def].tri = no; } } while (compat_getline(&line, &line_asize, in) != -1) { conf_lineno++; sym = NULL; if (line[0] == '#') { if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) continue; p = strchr(line + 2 + strlen(CONFIG_), ' '); if (!p) continue; *p++ = 0; if (strncmp(p, "is not set", 10)) continue; if (def == S_DEF_USER) { sym = sym_find(line + 2 + strlen(CONFIG_)); if (!sym) { sym_add_change_count(1); continue; } } else { sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); if (sym->type == S_UNKNOWN) sym->type = S_BOOLEAN; } if (sym->flags & def_flags) { conf_warning("override: reassigning to symbol %s", sym->name); } switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: sym->def[def].tri = no; sym->flags |= def_flags; break; default: ; } } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { p = strchr(line + strlen(CONFIG_), '='); if (!p) continue; *p++ = 0; p2 = strchr(p, '\n'); if (p2) { *p2-- = 0; if (*p2 == '\r') *p2 = 0; } sym = sym_find(line + strlen(CONFIG_)); if (!sym) { if (def == S_DEF_AUTO) /* * Reading from include/config/auto.conf * If CONFIG_FOO previously existed in * auto.conf but it is missing now, * include/config/foo.h must be touched. */ conf_touch_dep(line + strlen(CONFIG_)); else sym_add_change_count(1); continue; } if (sym->flags & def_flags) { conf_warning("override: reassigning to symbol %s", sym->name); } if (conf_set_sym_val(sym, def, def_flags, p)) continue; } else { if (line[0] != '\r' && line[0] != '\n') conf_warning("unexpected data: %.*s", (int)strcspn(line, "\r\n"), line); continue; } if (sym && sym_is_choice_value(sym)) { struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); switch (sym->def[def].tri) { case no: break; case mod: if (cs->def[def].tri == yes) { conf_warning("%s creates inconsistent choice state", sym->name); cs->flags &= ~def_flags; } break; case yes: if (cs->def[def].tri != no) conf_warning("override: %s changes choice state", sym->name); cs->def[def].val = sym; break; } cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); } } free(line); fclose(in); return 0; } int conf_read(const char *name) { struct symbol *sym; int conf_unsaved = 0; int i; sym_set_change_count(0); if (conf_read_simple(name, S_DEF_USER)) { sym_calc_value(modules_sym); return 1; } sym_calc_value(modules_sym); for_all_symbols(i, sym) { sym_calc_value(sym); if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE)) continue; if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { /* check that calculated value agrees with saved value */ switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: if (sym->def[S_DEF_USER].tri == sym_get_tristate_value(sym)) continue; break; default: if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) continue; break; } } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) /* no previous value and not saved */ continue; conf_unsaved++; /* maybe print value in verbose mode... */ } for_all_symbols(i, sym) { if (sym_has_value(sym) && !sym_is_choice_value(sym)) { /* Reset values of generates values, so they'll appear * as new, if they should become visible, but that * doesn't quite work if the Kconfig and the saved * configuration disagree. */ if (sym->visible == no && !conf_unsaved) sym->flags &= ~SYMBOL_DEF_USER; switch (sym->type) { case S_STRING: case S_INT: case S_HEX: /* Reset a string value if it's out of range */ if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) break; sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); conf_unsaved++; break; default: break; } } } sym_add_change_count(conf_warnings || conf_unsaved); return 0; } /* * Kconfig configuration printer * * This printer is used when generating the resulting configuration after * kconfig invocation and `defconfig' files. Unset symbol might be omitted by * passing a non-NULL argument to the printer. * */ static void kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) { switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: if (*value == 'n') { bool skip_unset = (arg != NULL); if (!skip_unset) fprintf(fp, "# %s%s is not set\n", CONFIG_, sym->name); return; } break; default: break; } fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); } static void kconfig_print_comment(FILE *fp, const char *value, void *arg) { const char *p = value; size_t l; for (;;) { l = strcspn(p, "\n"); fprintf(fp, "#"); if (l) { fprintf(fp, " "); xfwrite(p, l, 1, fp); p += l; } fprintf(fp, "\n"); if (*p++ == '\0') break; } } static struct conf_printer kconfig_printer_cb = { .print_symbol = kconfig_print_symbol, .print_comment = kconfig_print_comment, }; /* * Header printer * * This printer is used when generating the `include/generated/autoconf.h' file. */ static void header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) { switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: { const char *suffix = ""; switch (*value) { case 'n': break; case 'm': suffix = "_MODULE"; /* fall through */ default: fprintf(fp, "#define %s%s%s 1\n", CONFIG_, sym->name, suffix); } break; } case S_HEX: { const char *prefix = ""; if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) prefix = "0x"; fprintf(fp, "#define %s%s %s%s\n", CONFIG_, sym->name, prefix, value); break; } case S_STRING: case S_INT: fprintf(fp, "#define %s%s %s\n", CONFIG_, sym->name, value); break; default: break; } } static void header_print_comment(FILE *fp, const char *value, void *arg) { const char *p = value; size_t l; fprintf(fp, "/*\n"); for (;;) { l = strcspn(p, "\n"); fprintf(fp, " *"); if (l) { fprintf(fp, " "); xfwrite(p, l, 1, fp); p += l; } fprintf(fp, "\n"); if (*p++ == '\0') break; } fprintf(fp, " */\n"); } static struct conf_printer header_printer_cb = { .print_symbol = header_print_symbol, .print_comment = header_print_comment, }; /* * Tristate printer * * This printer is used when generating the `include/config/tristate.conf' file. */ static void tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) { if (sym->type == S_TRISTATE && *value != 'n') fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); } static struct conf_printer tristate_printer_cb = { .print_symbol = tristate_print_symbol, .print_comment = kconfig_print_comment, }; static void conf_write_symbol(FILE *fp, struct symbol *sym, struct conf_printer *printer, void *printer_arg) { const char *str; switch (sym->type) { case S_UNKNOWN: break; case S_STRING: str = sym_get_string_value(sym); str = sym_escape_string_value(str); printer->print_symbol(fp, sym, str, printer_arg); free((void *)str); break; default: str = sym_get_string_value(sym); printer->print_symbol(fp, sym, str, printer_arg); } } static void conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) { char buf[256]; snprintf(buf, sizeof(buf), "\n" "Automatically generated file; DO NOT EDIT.\n" "%s\n", rootmenu.prompt->text); printer->print_comment(fp, buf, printer_arg); } /* * Write out a minimal config. * All values that has default values are skipped as this is redundant. */ int conf_write_defconfig(const char *filename) { struct symbol *sym; struct menu *menu; FILE *out; out = fopen(filename, "w"); if (!out) return 1; sym_clear_all_valid(); /* Traverse all menus to find all relevant symbols */ menu = rootmenu.list; while (menu != NULL) { sym = menu->sym; if (sym == NULL) { if (!menu_is_visible(menu)) goto next_menu; } else if (!sym_is_choice(sym)) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE)) goto next_menu; sym->flags &= ~SYMBOL_WRITE; /* If we cannot change the symbol - skip */ if (!sym_is_changeable(sym)) goto next_menu; /* If symbol equals to default value - skip */ if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0) goto next_menu; /* * If symbol is a choice value and equals to the * default for a choice - skip. * But only if value is bool and equal to "y" and * choice is not "optional". * (If choice is "optional" then all values can be "n") */ if (sym_is_choice_value(sym)) { struct symbol *cs; struct symbol *ds; cs = prop_get_symbol(sym_get_choice_prop(sym)); ds = sym_choice_default(cs); if (!sym_is_optional(cs) && sym == ds) { if ((sym->type == S_BOOLEAN) && sym_get_tristate_value(sym) == yes) goto next_menu; } } conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); } next_menu: if (menu->list != NULL) { menu = menu->list; } else if (menu->next != NULL) { menu = menu->next; } else { while ((menu = menu->parent)) { if (menu->next != NULL) { menu = menu->next; break; } } } } fclose(out); return 0; } int conf_write(const char *name) { FILE *out; struct symbol *sym; struct menu *menu; const char *str; char tmpname[PATH_MAX + 1], oldname[PATH_MAX + 1]; char *env; int i; bool need_newline = false; if (!name) name = conf_get_configname(); if (!*name) { fprintf(stderr, "config name is empty\n"); return -1; } if (is_dir(name)) { fprintf(stderr, "%s: Is a directory\n", name); return -1; } if (make_parent_dir(name)) return -1; env = getenv("KCONFIG_OVERWRITECONFIG"); if (env && *env) { *tmpname = 0; out = fopen(name, "w"); } else { snprintf(tmpname, sizeof(tmpname), "%s.%d.tmp", name, (int)getpid()); out = fopen(tmpname, "w"); } if (!out) return 1; conf_write_heading(out, &kconfig_printer_cb, NULL); if (!conf_get_changed()) sym_clear_all_valid(); menu = rootmenu.list; while (menu) { sym = menu->sym; if (!sym) { if (!menu_is_visible(menu)) goto next; str = menu_get_prompt(menu); fprintf(out, "\n" "#\n" "# %s\n" "#\n", str); need_newline = false; } else if (!(sym->flags & SYMBOL_CHOICE) && !(sym->flags & SYMBOL_WRITTEN)) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE)) goto next; if (need_newline) { fprintf(out, "\n"); need_newline = false; } sym->flags |= SYMBOL_WRITTEN; conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); } next: if (menu->list) { menu = menu->list; continue; } if (menu->next) menu = menu->next; else while ((menu = menu->parent)) { if (!menu->sym && menu_is_visible(menu) && menu != &rootmenu) { str = menu_get_prompt(menu); fprintf(out, "# end of %s\n", str); need_newline = true; } if (menu->next) { menu = menu->next; break; } } } fclose(out); for_all_symbols(i, sym) sym->flags &= ~SYMBOL_WRITTEN; if (*tmpname) { if (is_same(name, tmpname)) { conf_message("No change to %s", name); unlink(tmpname); sym_set_change_count(0); return 0; } snprintf(oldname, sizeof(oldname), "%s.old", name); rename(name, oldname); if (rename(tmpname, name)) return 1; } conf_message("configuration written to %s", name); sym_set_change_count(0); return 0; } /* write a dependency file as used by kbuild to track dependencies */ static int conf_write_dep(const char *name) { struct file *file; FILE *out; out = fopen("..config.tmp", "w"); if (!out) return 1; fprintf(out, "deps_config := \\\n"); for (file = file_list; file; file = file->next) { if (file->next) fprintf(out, "\t%s \\\n", file->name); else fprintf(out, "\t%s\n", file->name); } fprintf(out, "\n%s: \\\n" "\t$(deps_config)\n\n", conf_get_autoconfig_name()); env_write_dep(out, conf_get_autoconfig_name()); fprintf(out, "\n$(deps_config): ;\n"); fclose(out); if (make_parent_dir(name)) return 1; rename("..config.tmp", name); return 0; } static int conf_touch_deps(void) { const char *name, *tmp; struct symbol *sym; int res, i; name = conf_get_autoconfig_name(); tmp = strrchr(name, '/'); depfile_prefix_len = tmp ? tmp - name + 1 : 0; if (depfile_prefix_len + 1 > sizeof(depfile_path)) return -1; strncpy(depfile_path, name, depfile_prefix_len); depfile_path[depfile_prefix_len] = 0; conf_read_simple(name, S_DEF_AUTO); sym_calc_value(modules_sym); for_all_symbols(i, sym) { sym_calc_value(sym); if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name) continue; if (sym->flags & SYMBOL_WRITE) { if (sym->flags & SYMBOL_DEF_AUTO) { /* * symbol has old and new value, * so compare them... */ switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: if (sym_get_tristate_value(sym) == sym->def[S_DEF_AUTO].tri) continue; break; case S_STRING: case S_HEX: case S_INT: if (!strcmp(sym_get_string_value(sym), sym->def[S_DEF_AUTO].val)) continue; break; default: break; } } else { /* * If there is no old value, only 'no' (unset) * is allowed as new value. */ switch (sym->type) { case S_BOOLEAN: case S_TRISTATE: if (sym_get_tristate_value(sym) == no) continue; break; default: break; } } } else if (!(sym->flags & SYMBOL_DEF_AUTO)) /* There is neither an old nor a new value. */ continue; /* else * There is an old value, but no new value ('no' (unset) * isn't saved in auto.conf, so the old value is always * different from 'no'). */ res = conf_touch_dep(sym->name); if (res) return res; } return 0; } int conf_write_autoconf(int overwrite) { struct symbol *sym; const char *name; const char *autoconf_name = conf_get_autoconfig_name(); FILE *out, *tristate, *out_h; int i; if (!overwrite && is_present(autoconf_name)) return 0; conf_write_dep("include/config/auto.conf.cmd"); if (conf_touch_deps()) return 1; out = fopen(".tmpconfig", "w"); if (!out) return 1; tristate = fopen(".tmpconfig_tristate", "w"); if (!tristate) { fclose(out); return 1; } out_h = fopen(".tmpconfig.h", "w"); if (!out_h) { fclose(out); fclose(tristate); return 1; } conf_write_heading(out, &kconfig_printer_cb, NULL); conf_write_heading(tristate, &tristate_printer_cb, NULL); conf_write_heading(out_h, &header_printer_cb, NULL); for_all_symbols(i, sym) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE) || !sym->name) continue; /* write symbol to auto.conf, tristate and header files */ conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); conf_write_symbol(out_h, sym, &header_printer_cb, NULL); } fclose(out); fclose(tristate); fclose(out_h); name = getenv("KCONFIG_AUTOHEADER"); if (!name) name = "include/generated/autoconf.h"; if (make_parent_dir(name)) return 1; if (rename(".tmpconfig.h", name)) return 1; name = getenv("KCONFIG_TRISTATE"); if (!name) name = "include/config/tristate.conf"; if (make_parent_dir(name)) return 1; if (rename(".tmpconfig_tristate", name)) return 1; if (make_parent_dir(autoconf_name)) return 1; /* * This must be the last step, kbuild has a dependency on auto.conf * and this marks the successful completion of the previous steps. */ if (rename(".tmpconfig", autoconf_name)) return 1; return 0; } static int sym_change_count; static void (*conf_changed_callback)(void); void sym_set_change_count(int count) { int _sym_change_count = sym_change_count; sym_change_count = count; if (conf_changed_callback && (bool)_sym_change_count != (bool)count) conf_changed_callback(); } void sym_add_change_count(int count) { sym_set_change_count(count + sym_change_count); } bool conf_get_changed(void) { return sym_change_count; } void conf_set_changed_callback(void (*fn)(void)) { conf_changed_callback = fn; } static bool randomize_choice_values(struct symbol *csym) { struct property *prop; struct symbol *sym; struct expr *e; int cnt, def; /* * If choice is mod then we may have more items selected * and if no then no-one. * In both cases stop. */ if (csym->curr.tri != yes) return false; prop = sym_get_choice_prop(csym); /* count entries in choice block */ cnt = 0; expr_list_for_each_sym(prop->expr, e, sym) cnt++; /* * find a random value and set it to yes, * set the rest to no so we have only one set */ def = (rand() % cnt); cnt = 0; expr_list_for_each_sym(prop->expr, e, sym) { if (def == cnt++) { sym->def[S_DEF_USER].tri = yes; csym->def[S_DEF_USER].val = sym; } else { sym->def[S_DEF_USER].tri = no; } sym->flags |= SYMBOL_DEF_USER; /* clear VALID to get value calculated */ sym->flags &= ~SYMBOL_VALID; } csym->flags |= SYMBOL_DEF_USER; /* clear VALID to get value calculated */ csym->flags &= ~(SYMBOL_VALID); return true; } void set_all_choice_values(struct symbol *csym) { struct property *prop; struct symbol *sym; struct expr *e; prop = sym_get_choice_prop(csym); /* * Set all non-assinged choice values to no */ expr_list_for_each_sym(prop->expr, e, sym) { if (!sym_has_value(sym)) sym->def[S_DEF_USER].tri = no; } csym->flags |= SYMBOL_DEF_USER; /* clear VALID to get value calculated */ csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES); } bool conf_set_all_new_symbols(enum conf_def_mode mode) { struct symbol *sym, *csym; int i, cnt, pby, pty, ptm; /* pby: probability of bool = y * pty: probability of tristate = y * ptm: probability of tristate = m */ pby = 50; pty = ptm = 33; /* can't go as the default in switch-case * below, otherwise gcc whines about * -Wmaybe-uninitialized */ if (mode == def_random) { int n, p[3]; char *env = getenv("KCONFIG_PROBABILITY"); n = 0; while( env && *env ) { char *endp; int tmp = strtol( env, &endp, 10 ); if( tmp >= 0 && tmp <= 100 ) { p[n++] = tmp; } else { errno = ERANGE; perror( "KCONFIG_PROBABILITY" ); exit( 1 ); } env = (*endp == ':') ? endp+1 : endp; if( n >=3 ) { break; } } switch( n ) { case 1: pby = p[0]; ptm = pby/2; pty = pby-ptm; break; case 2: pty = p[0]; ptm = p[1]; pby = pty + ptm; break; case 3: pby = p[0]; pty = p[1]; ptm = p[2]; break; } if( pty+ptm > 100 ) { errno = ERANGE; perror( "KCONFIG_PROBABILITY" ); exit( 1 ); } } bool has_changed = false; for_all_symbols(i, sym) { if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID)) continue; switch (sym_get_type(sym)) { case S_BOOLEAN: case S_TRISTATE: has_changed = true; switch (mode) { case def_yes: sym->def[S_DEF_USER].tri = yes; break; case def_mod: sym->def[S_DEF_USER].tri = mod; break; case def_no: if (sym->flags & SYMBOL_ALLNOCONFIG_Y) sym->def[S_DEF_USER].tri = yes; else sym->def[S_DEF_USER].tri = no; break; case def_random: sym->def[S_DEF_USER].tri = no; cnt = rand() % 100; if (sym->type == S_TRISTATE) { if (cnt < pty) sym->def[S_DEF_USER].tri = yes; else if (cnt < (pty+ptm)) sym->def[S_DEF_USER].tri = mod; } else if (cnt < pby) sym->def[S_DEF_USER].tri = yes; break; default: continue; } if (!(sym_is_choice(sym) && mode == def_random)) sym->flags |= SYMBOL_DEF_USER; break; default: break; } } sym_clear_all_valid(); /* * We have different type of choice blocks. * If curr.tri equals to mod then we can select several * choice symbols in one block. * In this case we do nothing. * If curr.tri equals yes then only one symbol can be * selected in a choice block and we set it to yes, * and the rest to no. */ if (mode != def_random) { for_all_symbols(i, csym) { if ((sym_is_choice(csym) && !sym_has_value(csym)) || sym_is_choice_value(csym)) csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES; } } for_all_symbols(i, csym) { if (sym_has_value(csym) || !sym_is_choice(csym)) continue; sym_calc_value(csym); if (mode == def_random) has_changed |= randomize_choice_values(csym); else { set_all_choice_values(csym); has_changed = true; } } return has_changed; }