From 3ed0d5f8f810ab75d548dd9dc76d85df095439b2 Mon Sep 17 00:00:00 2001 From: shenzexi <2538927534@qq.com> Date: Mon, 16 Dec 2024 21:46:21 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/Reptile/scripts/kconfig/confdata.c | 781 +++++++++++++------------ 1 file changed, 399 insertions(+), 382 deletions(-) diff --git a/src/Reptile/scripts/kconfig/confdata.c b/src/Reptile/scripts/kconfig/confdata.c index 506a956..59185d9 100644 --- a/src/Reptile/scripts/kconfig/confdata.c +++ b/src/Reptile/scripts/kconfig/confdata.c @@ -17,456 +17,473 @@ #include "lkc.h" +// 定义警告信息输出函数 static void conf_warning(const char *fmt, ...) - __attribute__ ((format (printf, 1, 2))); + __attribute__ ((format (printf, 1, 2))); +// 定义普通信息输出函数 static void conf_message(const char *fmt, ...) - __attribute__ ((format (printf, 1, 2))); + __attribute__ ((format (printf, 1, 2))); +// 配置文件名 static const char *conf_filename; +// 当前行号 static int conf_lineno, conf_warnings, conf_unsaved; +// 默认配置文件名 const char conf_defname[] = ".defconfig"; +// 输出警告信息 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++; + 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++; } +// 默认的消息回调函数 static void conf_default_message_callback(const char *fmt, va_list ap) { - printf("#\n# "); - vprintf(fmt, ap); - printf("\n#\n"); + printf("#\n# "); + vprintf(fmt, ap); + printf("\n#\n"); } +// 消息回调函数指针 static void (*conf_message_callback) (const char *fmt, va_list ap) = - conf_default_message_callback; + conf_default_message_callback; + +// 设置消息回调函数 void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap)) { - conf_message_callback = fn; + conf_message_callback = fn; } +// 输出消息信息 static void conf_message(const char *fmt, ...) { - va_list ap; + va_list ap; - va_start(ap, fmt); - if (conf_message_callback) - conf_message_callback(fmt, ap); + va_start(ap, fmt); + if (conf_message_callback) + conf_message_callback(fmt, ap); } +// 获取配置文件名 const char *conf_get_configname(void) { - char *name = getenv(PRODUCT_ENV"_CONFIG"); + char *name = getenv(PRODUCT_ENV"_CONFIG"); - return name ? name : ".config"; + return name ? name : ".config"; } +// 获取自动配置文件名 const char *conf_get_autoconfig_name(void) { - return getenv(PRODUCT_ENV"_AUTOCONFIG"); + return getenv(PRODUCT_ENV"_AUTOCONFIG"); } +// 展开配置值中的变量 static char *conf_expand_value(const char *in) { - struct symbol *sym; - const char *src; - static char res_value[SYMBOL_MAXLENGTH]; - char *dst, name[SYMBOL_MAXLENGTH]; - - res_value[0] = 0; - dst = name; - while ((src = strchr(in, '$'))) { - strncat(res_value, in, src - in); - src++; - dst = name; - while (isalnum(*src) || *src == '_') - *dst++ = *src++; - *dst = 0; - sym = sym_lookup(name, 0); - sym_calc_value(sym); - strcat(res_value, sym_get_string_value(sym)); - in = src; - } - strcat(res_value, in); - - return res_value; + struct symbol *sym; + const char *src; + static char res_value[SYMBOL_MAXLENGTH]; + char *dst, name[SYMBOL_MAXLENGTH]; + + res_value[0] = 0; + dst = name; + while ((src = strchr(in, '$'))) { + strncat(res_value, in, src - in); + src++; + dst = name; + while (isalnum(*src) || *src == '_') + *dst++ = *src++; + *dst = 0; + sym = sym_lookup(name, 0); + sym_calc_value(sym); + strcat(res_value, sym_get_string_value(sym)); + in = src; + } + strcat(res_value, in); + + return res_value; } +// 获取默认配置文件名 char *conf_get_default_confname(void) { - struct stat buf; - static char fullname[PATH_MAX+1]; - char *env, *name; - - name = conf_expand_value(conf_defname); - env = getenv(SRCTREE); - if (env) { - sprintf(fullname, "%s/%s", env, name); - if (!stat(fullname, &buf)) - return fullname; - } - return name; + struct stat buf; + static char fullname[PATH_MAX+1]; + char *env, *name; + + name = conf_expand_value(conf_defname); + env = getenv(SRCTREE); + if (env) { + sprintf(fullname, "%s/%s", env, name); + if (!stat(fullname, &buf)) + return fullname; + } + return name; } +// 设置符号值 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_OTHER: - if (*p != '"') { - for (p2 = p; *p2 && !isspace(*p2); p2++) - ; - sym->type = S_STRING; - goto done; - } - /* fall through */ - 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: - done: - if (sym_string_valid(sym, p)) { - sym->def[def].val = strdup(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; + char *p2; + + switch (sym->type) { + case S_TRISTATE: + if (p[0] == 'm') { + sym->def[def].tri = mod; + sym->flags |= def_flags; + break; + } + // 跌落至下一个case + 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_OTHER: + if (*p != '"') { + for (p2 = p; *p2 && !isspace(*p2); p2++) + ; + sym->type = S_STRING; + goto done; + } + // 跌落至下一个case + 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; + } + // 跌落至下一个case + case S_INT: + case S_HEX: + done: + if (sym_string_valid(sym, p)) { + sym->def[def].val = strdup(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; } +// 增加字节到行缓冲区 #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 = realloc(*lineptr, new_size); - if (!nline) - return -1; - - *lineptr = nline; - *n = new_size; - } - - (*lineptr)[slen] = c; - - return 0; + char *nline; + size_t new_size = slen + 1; + if (new_size > *n) { + new_size += LINE_GROWTH - 1; + new_size *= 2; + nline = realloc(*lineptr, new_size); + if (!nline) + return -1; + + *lineptr = nline; + *n = new_size; + } + + (*lineptr)[slen] = c; + + return 0; } +// 兼容getline函数 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++; - } - } + 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++; + // 跌落至下一个case + 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; + line[slen-1] = '\0'; + *lineptr = line; + return -1; } +// 读取简单的配置文件 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) { - if (modules_sym) - sym_calc_value(modules_sym); - return 1; - } - - for_all_defaults(sym_defconfig_list, prop) { - if (expr_calc_value(prop->visible.expr) == no || - prop->expr->type != E_SYMBOL) - continue; - name = conf_expand_value(prop->expr->left.sym->name); - in = zconf_fopen(name); - if (in) { - conf_message(_("using defaults found in %s"), - name); - goto load; - } - } - } - if (!in) - return 1; + 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) { + if (modules_sym) + sym_calc_value(modules_sym); + return 1; + } + + for_all_defaults(sym_defconfig_list, prop) { + if (expr_calc_value(prop->visible.expr) == no || + prop->expr->type != E_SYMBOL) + continue; + name = conf_expand_value(prop->expr->left.sym->name); + 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; - conf_unsaved = 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); - goto setsym; - } - } 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; - } - if (def == S_DEF_USER) { - sym = sym_find(line + strlen(CONFIG_)); - if (!sym) { - sym_add_change_count(1); - goto setsym; - } - } else { - sym = sym_lookup(line + strlen(CONFIG_), 0); - if (sym->type == S_UNKNOWN) - sym->type = S_OTHER; - } - 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"); - continue; - } + conf_filename = name; + conf_lineno = 0; + conf_warnings = 0; + conf_unsaved = 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); + // 跌落至下一个case + 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); + goto setsym; + } + } 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; + } + if (def == S_DEF_USER) { + sym = sym_find(line + strlen(CONFIG_)); + if (!sym) { + sym_add_change_count(1); + goto setsym; + } + } else { + sym = sym_lookup(line + strlen(CONFIG_), 0); + if (sym->type == S_UNKNOWN) + sym->type = S_OTHER; + } + 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"); + continue; + } setsym: - 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); - - if (modules_sym) - sym_calc_value(modules_sym); - return 0; + 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); + + if (modules_sym) + sym_calc_value(modules_sym); + return 0; } +// 读取配置文件 int conf_read(const char *name) { - struct symbol *sym; - int i; - - sym_set_change_count(0); - - if (conf_read_simple(name, S_DEF_USER)) - return 1; - - for_all_symbols(i, sym) { - sym_calc_value(sym); - if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) - 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)) - break; - if (!sym_is_choice(sym)) - continue; - /* fall through */ - 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; + struct symbol *sym; + int i; + + sym_set_change_count(0); + + if (conf_read_simple(name, S_DEF_USER)) + return 1; + + for_all_symbols(i, sym) { + sym_calc_value(sym); + if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) + continue; + if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { + // 检查计算值是否与保存值一致 + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) + break; + if (!sym_is_choice(sym)) + continue; + // 跌落至下一个case + default: + if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) + continue; + break; + } + } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) + // 没有先前值且未保存 + continue; + conf_unsaved++; + // 在详细模式下可能打印值... + } + + for_all_symbols(i, sym) { + if (sym_has_value(sym) && !sym_is_choice_value(sym)) { + // 重置生成值的值，以便它们在出现时会显示为新值， + // 但如果Kconfig和保存的配置不一致，则不起作用。 + if (sym->visible == no && !conf_unsaved) + sym->flags &= ~SYMBOL_DEF_USER; + switch (sym->type) { + case S_STRING: + case S_INT: + case S_HEX: + // 如果字符串值超出范围，则重置字符串值 + 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; } /*