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-rw-r--r--Documentation/kbuild/kconfig-language.txt3
-rw-r--r--scripts/kconfig/zconf.y14
2 files changed, 13 insertions, 4 deletions
diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt
index b472e4e0ba6..2fe93ca7c77 100644
--- a/Documentation/kbuild/kconfig-language.txt
+++ b/Documentation/kbuild/kconfig-language.txt
@@ -322,7 +322,8 @@ mainmenu:
"mainmenu" <prompt>
This sets the config program's title bar if the config program chooses
-to use it.
+to use it. It should be placed at the top of the configuration, before any
+other statement.
Kconfig hints
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 23dfd3baa7a..e9b14efd741 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -36,7 +36,7 @@ static struct menu *current_menu, *current_entry;
#define YYERROR_VERBOSE
#endif
%}
-%expect 26
+%expect 28
%union
{
@@ -104,14 +104,15 @@ static struct menu *current_menu, *current_entry;
%}
%%
-input: stmt_list;
+input: nl start | start;
+
+start: mainmenu_stmt stmt_list | stmt_list;
stmt_list:
/* empty */
| stmt_list common_stmt
| stmt_list choice_stmt
| stmt_list menu_stmt
- | stmt_list T_MAINMENU prompt nl
| stmt_list end { zconf_error("unexpected end statement"); }
| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
| stmt_list option_name error T_EOL
@@ -342,6 +343,13 @@ if_block:
| if_block choice_stmt
;
+/* mainmenu entry */
+
+mainmenu_stmt: T_MAINMENU prompt nl
+{
+ menu_add_prompt(P_MENU, $2, NULL);
+};
+
/* menu entry */
menu: T_MENU prompt T_EOL