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kconfig: implement the `mainmenu' directive

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If specified, the directive must be placed at the top of the Kconfig file.

We need to change the grammar to make the mainmenu directive set the
`rootmenu' prompt. This reflect how menu_add_prompt() works internally, ie.
set the prompt of the `current_entry', pointing originally to `rootmenu'.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Arnaud Lacombe 2010-08-16 22:55:31 -04:00
parent ef211607ed
commit 8ea13e2c87
2 changed files with 13 additions and 4 deletions
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3
Documentation/kbuild/kconfig-language.txt
View File

@ -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

14
scripts/kconfig/zconf.y
View File

@ -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