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authorArnaud Lacombe <lacombar@gmail.com>2010-11-06 18:30:23 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-11-22 11:27:17 -0200
commit86e187ff9bce9fbed7bfed92ae34f491cf1af50f (patch)
treed857b2671a98e2eb1ddc80477b564e4d279ae464
parente53beacd23d9cb47590da6a7a7f6d417b941a994 (diff)
downloadlinux-linaro-86e187ff9bce9fbed7bfed92ae34f491cf1af50f.tar.gz
kconfig: add an option to determine a menu's visibility
This option is aimed to add the possibility to control a menu's visibility without adding dependency to the expression to all the submenu. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--scripts/kconfig/expr.h1
-rw-r--r--scripts/kconfig/lkc.h1
-rw-r--r--scripts/kconfig/menu.c11
-rw-r--r--scripts/kconfig/zconf.gperf1
-rw-r--r--scripts/kconfig/zconf.y21
5 files changed, 32 insertions, 3 deletions
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 184eb6a0b50..e57826ced38 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -164,6 +164,7 @@ struct menu {
struct menu *list;
struct symbol *sym;
struct property *prompt;
+ struct expr *visibility;
struct expr *dep;
unsigned int flags;
char *help;
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 753cdbd7b80..3f7240df0f3 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -107,6 +107,7 @@ void menu_end_menu(void);
void menu_add_entry(struct symbol *sym);
void menu_end_entry(void);
void menu_add_dep(struct expr *dep);
+void menu_add_visibility(struct expr *dep);
struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep);
struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep);
void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep);
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 7e83aef42c6..b9d9aa18e6d 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -152,6 +152,12 @@ struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr
return menu_add_prop(type, prompt, NULL, dep);
}
+void menu_add_visibility(struct expr *expr)
+{
+ current_entry->visibility = expr_alloc_and(current_entry->visibility,
+ expr);
+}
+
void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
{
menu_add_prop(type, NULL, expr, dep);
@@ -410,6 +416,11 @@ bool menu_is_visible(struct menu *menu)
if (!menu->prompt)
return false;
+ if (menu->visibility) {
+ if (expr_calc_value(menu->visibility) == no)
+ return no;
+ }
+
sym = menu->sym;
if (sym) {
sym_calc_value(sym);
diff --git a/scripts/kconfig/zconf.gperf b/scripts/kconfig/zconf.gperf
index d8bc7424962..c9e690eb754 100644
--- a/scripts/kconfig/zconf.gperf
+++ b/scripts/kconfig/zconf.gperf
@@ -38,6 +38,7 @@ hex, T_TYPE, TF_COMMAND, S_HEX
string, T_TYPE, TF_COMMAND, S_STRING
select, T_SELECT, TF_COMMAND
range, T_RANGE, TF_COMMAND
+visible, T_VISIBLE, TF_COMMAND
option, T_OPTION, TF_COMMAND
on, T_ON, TF_PARAM
modules, T_OPT_MODULES, TF_OPTION
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 2abd3c7ff15..49fb4ab664c 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 28
+%expect 30
%union
{
@@ -68,6 +68,7 @@ static struct menu *current_menu, *current_entry;
%token <id>T_DEFAULT
%token <id>T_SELECT
%token <id>T_RANGE
+%token <id>T_VISIBLE
%token <id>T_OPTION
%token <id>T_ON
%token <string> T_WORD
@@ -123,7 +124,7 @@ stmt_list:
;
option_name:
- T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT
+ T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
;
common_stmt:
@@ -359,7 +360,7 @@ menu: T_MENU prompt T_EOL
printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
};
-menu_entry: menu depends_list
+menu_entry: menu visibility_list depends_list
{
$$ = menu_add_menu();
};
@@ -430,6 +431,19 @@ depends: T_DEPENDS T_ON expr T_EOL
printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
};
+/* visibility option */
+
+visibility_list:
+ /* empty */
+ | visibility_list visible
+ | visibility_list T_EOL
+;
+
+visible: T_VISIBLE if_expr
+{
+ menu_add_visibility($2);
+};
+
/* prompt statement */
prompt_stmt_opt:
@@ -526,6 +540,7 @@ static const char *zconf_tokenname(int token)
case T_IF: return "if";
case T_ENDIF: return "endif";
case T_DEPENDS: return "depends";
+ case T_VISIBLE: return "visible";
}
return "<token>";
}