util/kconfig: Uprev to Linux 5.13's kconfig

This was originally several commits that had to be squashed into one
because the intermediate states weren't able to build coreboot:

 - one to remove everything that wasn't our own code, leaving only
   regex.[ch], toada.c, description.md and Makefile.inc.
 - one to copy in Linux 5.13's scripts/kconfig and adapt Makefile.inc
   to make the original Makefile work again.
 - adapt abuild to use olddefconfig, simplifying matters.
 - apply patches in util/kconfig/patches.
 - Some more adaptations to the libpayload build system.

The patches are now in util/kconfig/patches/, reverse applying them
should lead to a util/kconfig/ tree that contains exactly the Linux
version + our own 5 files.

Change-Id: Ia0e8fe4e9022b278f34ab113a433ef4d45e5c355
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37152
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

1 files changed, 43 insertions, 48 deletions

diff --git a/util/kconfig/lkc_proto.h b/util/kconfig/lkc_proto.h
index ecdb9659b6..a11626bdc4 100644
--- a/util/kconfig/lkc_proto.h
+++ b/util/kconfig/lkc_proto.h
@@ -1,57 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <stdarg.h>
 
 /* confdata.c */
-P(conf_parse,void,(const char *name));
-P(conf_read,int,(const char *name));
-P(conf_read_simple,int,(const char *name, int));
-P(conf_write_defconfig,int,(const char *name));
-P(conf_write,int,(const char *name));
-P(conf_write_autoconf,int,(void));
-P(conf_get_changed,bool,(void));
-P(conf_set_changed_callback, void,(void (*fn)(void)));
-P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
-
-/* menu.c */
-P(rootmenu,struct menu,);
-
-P(menu_is_empty, bool, (struct menu *menu));
-P(menu_is_visible, bool, (struct menu *menu));
-P(menu_has_prompt, bool, (struct menu *menu));
-P(menu_get_prompt,const char *,(struct menu *menu));
-P(menu_get_root_menu,struct menu *,(struct menu *menu));
-P(menu_get_parent_menu,struct menu *,(struct menu *menu));
-P(menu_has_help,bool,(struct menu *menu));
-P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
-			 *head));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
-				   *head));
-P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
+void conf_parse(const char *name);
+int conf_read(const char *name);
+int conf_read_simple(const char *name, int);
+int conf_write_defconfig(const char *name);
+int conf_write(const char *name);
+int conf_write_autoconf(int overwrite);
+void conf_set_changed(bool val);
+bool conf_get_changed(void);
+void conf_set_changed_callback(void (*fn)(void));
+void conf_set_message_callback(void (*fn)(const char *s));
 
 /* symbol.c */
-P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
+extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
+
+struct symbol * sym_lookup(const char *name, int flags);
+struct symbol * sym_find(const char *name);
+const char * sym_escape_string_value(const char *in);
+struct symbol ** sym_re_search(const char *pattern);
+const char * sym_type_name(enum symbol_type type);
+void sym_calc_value(struct symbol *sym);
+enum symbol_type sym_get_type(struct symbol *sym);
+bool sym_tristate_within_range(struct symbol *sym,tristate tri);
+bool sym_set_tristate_value(struct symbol *sym,tristate tri);
+tristate sym_toggle_tristate_value(struct symbol *sym);
+bool sym_string_valid(struct symbol *sym, const char *newval);
+bool sym_string_within_range(struct symbol *sym, const char *str);
+bool sym_set_string_value(struct symbol *sym, const char *newval);
+bool sym_is_changeable(struct symbol *sym);
+struct property * sym_get_choice_prop(struct symbol *sym);
+const char * sym_get_string_value(struct symbol *sym);
 
-P(sym_lookup,struct symbol *,(const char *name, int flags));
-P(sym_find,struct symbol *,(const char *name));
-P(sym_expand_string_value,const char *,(const char *in));
-P(sym_escape_string_value, const char *,(const char *in));
-P(sym_re_search,struct symbol **,(const char *pattern));
-P(sym_type_name,const char *,(enum symbol_type type));
-P(sym_calc_value,void,(struct symbol *sym));
-P(sym_get_type,enum symbol_type,(struct symbol *sym));
-P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
-P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
-P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
-P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
-P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
-P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
-P(sym_is_changable,bool,(struct symbol *sym));
-P(sym_get_choice_prop,struct property *,(struct symbol *sym));
-P(sym_get_default_prop,struct property *,(struct symbol *sym));
-P(sym_get_string_value,const char *,(struct symbol *sym));
+const char * prop_get_type_name(enum prop_type type);
 
-P(prop_get_type_name,const char *,(enum prop_type type));
+/* preprocess.c */
+enum variable_flavor {
+	VAR_SIMPLE,
+	VAR_RECURSIVE,
+	VAR_APPEND,
+};
+void env_write_dep(FILE *f, const char *auto_conf_name);
+void variable_add(const char *name, const char *value,
+		  enum variable_flavor flavor);
+void variable_all_del(void);
+char *expand_dollar(const char **str);
+char *expand_one_token(const char **str);
 
 /* expr.c */
-P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
-P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);