carl9170: config: re-add config.cmake

[carl9170fw.git] / config / confdata.c

diff --git a/config/confdata.c b/config/confdata.c
index c0a4e51df3f56857c5f77c4027d55aed0a5ab822..d67695d19ac77fdad52cbc4f4f005e8110ffcb58 100644 (file)
--- a/config/confdata.c
+++ b/config/confdata.c
@@ -1,12 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
  */
 
 #include <sys/stat.h>
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -227,14 +228,6 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                        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;
@@ -253,7 +246,6 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                /* fall through */
        case S_INT:
        case S_HEX:
-       done:
                if (sym_string_valid(sym, p)) {
                        sym->def[def].val = xstrdup(p);
                        sym->flags |= def_flags;
@@ -434,17 +426,22 @@ load:
                                if (*p2 == '\r')
                                        *p2 = 0;
                        }
-                       if (def == S_DEF_USER) {
-                               sym = sym_find(line + strlen(CONFIG_));
-                               if (!sym) {
+
+                       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;
-                               }
-                       } else {
-                               sym = sym_lookup(line + strlen(CONFIG_), 0);
-                               if (sym->type == S_UNKNOWN)
-                                       sym->type = S_OTHER;
+                               continue;
                        }
+
                        if (sym->flags & def_flags) {
                                conf_warning("override: reassigning to symbol %s", sym->name);
                        }
@@ -756,7 +753,6 @@ static void conf_write_symbol(FILE *fp, struct symbol *sym,
        const char *str;
 
        switch (sym->type) {
-       case S_OTHER:
        case S_UNKNOWN:
                break;
        case S_STRING:
@@ -1065,13 +1061,17 @@ static int conf_touch_deps(void)
        return 0;
 }
 
-int conf_write_autoconf(void)
+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, *out_c;
        int i;
 
+       if (!overwrite && is_present(autoconf_name))
+               return 0;
+
        sym_clear_all_valid();
 
        conf_write_dep("include/generated/auto.conf.cmd");
@@ -1146,6 +1146,9 @@ int conf_write_autoconf(void)
        if (rename(".tmpconfig_tristate", name))
                return 1;
 
+       if (make_parent_dir(autoconf_name))
+               return 1;
+
        name = getenv("KCONFIG_CMAKE");
        if (!name)
                name = "config.cmake";
@@ -1154,15 +1157,11 @@ int conf_write_autoconf(void)
        if (rename(".tmpconfig.cmake", name))
                return 1;
 
-       name = conf_get_autoconfig_name();
-       if (make_parent_dir(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", name))
+       if (rename(".tmpconfig", autoconf_name))
                return 1;
 
        return 0;