kconfig: Avoid format overflow warning from GCC 8.1
[carl9170fw.git] / config / confdata.c
index 192f13c73e8f616433c438e122eceaa6f5c21c15..4af0fbb1774c4d7bafea6794d9b772cb9c2b75fe 100644 (file)
 
 #include "lkc.h"
 
+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)));
 
@@ -23,7 +28,7 @@ static void conf_message(const char *fmt, ...)
        __attribute__ ((format (printf, 1, 2)));
 
 static const char *conf_filename;
-static int conf_lineno, conf_warnings, conf_unsaved;
+static int conf_lineno, conf_warnings;
 
 const char conf_defname[] = "include/generated/defconfig";
 
@@ -59,6 +64,7 @@ static void conf_message(const char *fmt, ...)
        va_start(ap, fmt);
        if (conf_message_callback)
                conf_message_callback(fmt, ap);
+       va_end(ap);
 }
 
 const char *conf_get_configname(void)
@@ -75,39 +81,13 @@ const char *conf_get_autoconfig_name(void)
        return name ? name : "include/generated/auto.conf";
 }
 
-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;
-}
-
 char *conf_get_default_confname(void)
 {
        struct stat buf;
        static char fullname[PATH_MAX+1];
        char *env, *name;
 
-       name = conf_expand_value(conf_defname);
+       name = expand_string(conf_defname);
        env = getenv(SRCTREE);
        if (env) {
                sprintf(fullname, "%s/%s", env, name);
@@ -140,7 +120,9 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                        sym->flags |= def_flags;
                        break;
                }
-               conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+               if (def != S_DEF_AUTO)
+                       conf_warning("symbol value '%s' invalid for %s",
+                                    p, sym->name);
                return 1;
        case S_OTHER:
                if (*p != '"') {
@@ -161,7 +143,8 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                        memmove(p2, p2 + 1, strlen(p2));
                }
                if (!p2) {
-                       conf_warning("invalid string found");
+                       if (def != S_DEF_AUTO)
+                               conf_warning("invalid string found");
                        return 1;
                }
                /* fall through */
@@ -169,10 +152,12 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
        case S_HEX:
        done:
                if (sym_string_valid(sym, p)) {
-                       sym->def[def].val = strdup(p);
+                       sym->def[def].val = xstrdup(p);
                        sym->flags |= def_flags;
                } else {
-                       conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+                       if (def != S_DEF_AUTO)
+                               conf_warning("symbol value '%s' invalid for %s",
+                                            p, sym->name);
                        return 1;
                }
                break;
@@ -190,7 +175,7 @@ static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
        if (new_size > *n) {
                new_size += LINE_GROWTH - 1;
                new_size *= 2;
-               nline = realloc(*lineptr, new_size);
+               nline = xrealloc(*lineptr, new_size);
                if (!nline)
                        return -1;
 
@@ -256,20 +241,18 @@ int conf_read_simple(const char *name, int def)
                if (in)
                        goto load;
                sym_add_change_count(1);
-               if (!sym_defconfig_list) {
-                       if (modules_sym)
-                               sym_calc_value(modules_sym);
+               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;
-                       name = conf_expand_value(prop->expr->left.sym->name);
+                       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"),
+                               conf_message("using defaults found in %s",
                                         name);
                                goto load;
                        }
@@ -282,12 +265,13 @@ 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:
@@ -365,7 +349,9 @@ load:
                                continue;
                } else {
                        if (line[0] != '\r' && line[0] != '\n')
-                               conf_warning("unexpected data");
+                               conf_warning("unexpected data: %.*s",
+                                            (int)strcspn(line, "\r\n"), line);
+
                        continue;
                }
 setsym:
@@ -377,13 +363,13 @@ setsym:
                        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;
-                               cs->flags |= def_flags;
                                break;
                        }
                        cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
@@ -391,21 +377,23 @@ setsym:
        }
        free(line);
        fclose(in);
-
-       if (modules_sym)
-               sym_calc_value(modules_sym);
        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))
+       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);
@@ -778,7 +766,7 @@ int conf_write(const char *name)
        struct menu *menu;
        const char *basename;
        const char *str;
-       char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
+       char dirname[PATH_MAX+1], tmpname[PATH_MAX+22], newname[PATH_MAX+8];
        char *env;
 
        dirname[0] = 0;
@@ -835,8 +823,6 @@ int conf_write(const char *name)
                        sym_calc_value(sym);
                        if (!(sym->flags & SYMBOL_WRITE))
                                goto next;
-                       if (sym_is_choice_value(sym) && !menu_is_visible(menu->parent))
-                               goto next;
                        sym->flags &= ~SYMBOL_WRITE;
 
                        conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
@@ -866,7 +852,7 @@ next:
                        return 1;
        }
 
-       conf_message(_("configuration written to %s"), newname);
+       conf_message("configuration written to %s", newname);
 
        sym_set_change_count(0);
 
@@ -884,6 +870,7 @@ static int conf_split_config(void)
 
        name = conf_get_autoconfig_name();
        conf_read_simple(name, S_DEF_AUTO);
+       sym_calc_value(modules_sym);
 
        if (chdir("include/generated"))
                return 1;
@@ -1174,7 +1161,7 @@ void set_all_choice_values(struct symbol *csym)
 bool conf_set_all_new_symbols(enum conf_def_mode mode)
 {
        struct symbol *sym, *csym;
-       int i, cnt, pby, pty, ptm;      /* pby: probability of boolean  = y
+       int i, cnt, pby, pty, ptm;      /* pby: probability of bool     = y
                                         * pty: probability of tristate = y
                                         * ptm: probability of tristate = m
                                         */
@@ -1236,7 +1223,10 @@ bool conf_set_all_new_symbols(enum conf_def_mode mode)
                                sym->def[S_DEF_USER].tri = mod;
                                break;
                        case def_no:
-                               sym->def[S_DEF_USER].tri = 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;