Revert "build: scripts/config - update to kconfig-v5.6"

[oweals/openwrt.git] / scripts / config / util.c

diff --git a/scripts/config/util.c b/scripts/config/util.c
index 29585394df71dfb75e3f56fcd1995b593863fc8d..0e76042473ccd3633aa0870da3cce23e0b1788c6 100644 (file)
--- a/scripts/config/util.c
+++ b/scripts/config/util.c
@@ -1,7 +1,8 @@
-// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
  * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
+ *
+ * Released under the terms of the GNU GPL v2.0.
  */
 
 #include <stdarg.h>
@@ -13,21 +14,69 @@
 struct file *file_lookup(const char *name)
 {
        struct file *file;
+       const char *file_name = sym_expand_string_value(name);
 
        for (file = file_list; file; file = file->next) {
                if (!strcmp(name, file->name)) {
+                       free((void *)file_name);
                        return file;
                }
        }
 
        file = xmalloc(sizeof(*file));
        memset(file, 0, sizeof(*file));
-       file->name = xstrdup(name);
+       file->name = file_name;
        file->next = file_list;
        file_list = file;
        return file;
 }
 
+/* write a dependency file as used by kbuild to track dependencies */
+int file_write_dep(const char *name)
+{
+       struct symbol *sym, *env_sym;
+       struct expr *e;
+       struct file *file;
+       FILE *out;
+
+       if (!name)
+               name = ".kconfig.d";
+       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$(deps_config)\n\n", conf_get_autoconfig_name());
+
+       expr_list_for_each_sym(sym_env_list, e, sym) {
+               struct property *prop;
+               const char *value;
+
+               prop = sym_get_env_prop(sym);
+               env_sym = prop_get_symbol(prop);
+               if (!env_sym)
+                       continue;
+               value = getenv(env_sym->name);
+               if (!value)
+                       value = "";
+               fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
+               fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
+               fprintf(out, "endif\n");
+       }
+
+       fprintf(out, "\n$(deps_config): ;\n");
+       fclose(out);
+       rename("..config.tmp", name);
+       return 0;
+}
+
+
 /* Allocate initial growable string */
 struct gstr str_new(void)
 {
@@ -55,7 +104,7 @@ void str_append(struct gstr *gs, const char *s)
        if (s) {
                l = strlen(gs->s) + strlen(s) + 1;
                if (l > gs->len) {
-                       gs->s = xrealloc(gs->s, l);
+                       gs->s   = realloc(gs->s, l);
                        gs->len = l;
                }
                strcat(gs->s, s);
@@ -96,34 +145,3 @@ void *xcalloc(size_t nmemb, size_t size)
        fprintf(stderr, "Out of memory.\n");
        exit(1);
 }
-
-void *xrealloc(void *p, size_t size)
-{
-       p = realloc(p, size);
-       if (p)
-               return p;
-       fprintf(stderr, "Out of memory.\n");
-       exit(1);
-}
-
-char *xstrdup(const char *s)
-{
-       char *p;
-
-       p = strdup(s);
-       if (p)
-               return p;
-       fprintf(stderr, "Out of memory.\n");
-       exit(1);
-}
-
-char *xstrndup(const char *s, size_t n)
-{
-       char *p;
-
-       p = strndup(s, n);
-       if (p)
-               return p;
-       fprintf(stderr, "Out of memory.\n");
-       exit(1);
-}