pull kconfig from linux-3.11

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 64 insertions, 30 deletions

diff --git a/extra/config/zconf.y b/extra/config/zconf.y
index 029c9b6c3..2cfcfbadc 100644
--- a/extra/config/zconf.y
+++ b/extra/config/zconf.y
@@ -11,11 +11,8 @@
 #include <string.h>
 #include <stdbool.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
-#include "zconf.hash.c"
-
 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
 
 #define PRINTD		0x0001
@@ -27,18 +24,14 @@ extern int zconflex(void);
 static void zconfprint(const char *err, ...);
 static void zconf_error(const char *err, ...);
 static void zconferror(const char *err);
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
 
-struct symbol *symbol_hash[257];
+struct symbol *symbol_hash[SYMBOL_HASHSIZE];
 
 static struct menu *current_menu, *current_entry;
 
-#define YYDEBUG 0
-#if YYDEBUG
-#define YYERROR_VERBOSE
-#endif
 %}
-%expect 26
+%expect 30
 
 %union
 {
@@ -47,7 +40,7 @@ static struct menu *current_menu, *current_entry;
 	struct symbol *symbol;
 	struct expr *expr;
 	struct menu *menu;
-	struct kconf_id *id;
+	const struct kconf_id *id;
 }
 
 %token <id>T_MAINMENU
@@ -70,6 +63,7 @@ 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
@@ -100,15 +94,21 @@ static struct menu *current_menu, *current_entry;
 		menu_end_menu();
 } if_entry menu_entry choice_entry
 
+%{
+/* Include zconf.hash.c here so it can see the token constants. */
+#include "zconf.hash.c"
+%}
+
 %%
-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
@@ -119,7 +119,7 @@ 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:
@@ -224,7 +224,7 @@ symbol_option_list:
 	  /* empty */
 	| symbol_option_list T_WORD symbol_option_arg
 {
-	struct kconf_id *id = kconf_id_lookup($2, strlen($2));
+	const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
 	if (id && id->flags & TF_OPTION)
 		menu_add_option(id->token, $3);
 	else
@@ -339,6 +339,13 @@ 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
@@ -348,7 +355,7 @@ 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();
 };
@@ -419,6 +426,19 @@ 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:
@@ -472,16 +492,14 @@ void conf_parse(const char *name)
 	zconf_initscan(name);
 
 	sym_init();
-	menu_init();
+	_menu_init();
 	modules_sym = sym_lookup(NULL, 0);
 	modules_sym->type = S_BOOLEAN;
 	modules_sym->flags |= SYMBOL_AUTO;
 	rootmenu.prompt = menu_add_prompt(P_MENU, "uClibc Configuration", NULL);
 
-#if YYDEBUG
 	if (getenv("ZCONF_DEBUG"))
 		zconfdebug = 1;
-#endif
 	zconfparse();
 	if (zconfnerrs)
 		exit(1);
@@ -491,6 +509,10 @@ void conf_parse(const char *name)
 		prop = prop_alloc(P_DEFAULT, modules_sym);
 		prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));
 	}
+
+	rootmenu.prompt->text = _(rootmenu.prompt->text);
+	rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
+
 	menu_finalize(&rootmenu);
 	for_all_symbols(i, sym) {
 		if (sym_check_deps(sym))
@@ -501,7 +523,7 @@ void conf_parse(const char *name)
 	sym_set_change_count(1);
 }
 
-const char *zconf_tokenname(int token)
+static const char *zconf_tokenname(int token)
 {
 	switch (token) {
 	case T_MENU:		return "menu";
@@ -511,11 +533,12 @@ 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>";
 }
 
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
 {
 	if (id->token != endtoken) {
 		zconf_error("unexpected '%s' within %s block",
@@ -560,12 +583,10 @@ static void zconf_error(const char *err, ...)
 
 static void zconferror(const char *err)
 {
-#if YYDEBUG
 	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
-#endif
 }
 
-void print_quoted_string(FILE *out, const char *str)
+static void print_quoted_string(FILE *out, const char *str)
 {
 	const char *p;
 	int len;
@@ -582,15 +603,15 @@ void print_quoted_string(FILE *out, const char *str)
 	putc('"', out);
 }
 
-void print_symbol(FILE *out, struct menu *menu)
+static void print_symbol(FILE *out, struct menu *menu)
 {
 	struct symbol *sym = menu->sym;
 	struct property *prop;
 
 	if (sym_is_choice(sym))
-		fprintf(out, "choice\n");
+		fprintf(out, "\nchoice\n");
 	else
-		fprintf(out, "config %s\n", sym->name);
+		fprintf(out, "\nconfig %s\n", sym->name);
 	switch (sym->type) {
 	case S_BOOLEAN:
 		fputs("  boolean\n", out);
@@ -636,6 +657,21 @@ void print_symbol(FILE *out, struct menu *menu)
 		case P_CHOICE:
 			fputs("  #choice value\n", out);
 			break;
+		case P_SELECT:
+			fputs( "  select ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_RANGE:
+			fputs( "  range ", out);
+			expr_fprint(prop->expr, out);
+			fputc('\n', out);
+			break;
+		case P_MENU:
+			fputs( "  menu ", out);
+			print_quoted_string(out, prop->text);
+			fputc('\n', out);
+			break;
 		default:
 			fprintf(out, "  unknown prop %d!\n", prop->type);
 			break;
@@ -647,7 +683,6 @@ void print_symbol(FILE *out, struct menu *menu)
 			menu->help[len] = 0;
 		fprintf(out, "  help\n%s\n", menu->help);
 	}
-	fputc('\n', out);
 }
 
 void zconfdump(FILE *out)
@@ -680,7 +715,6 @@ void zconfdump(FILE *out)
 				expr_fprint(prop->visible.expr, out);
 				fputc('\n', out);
 			}
-			fputs("\n", out);
 		}
 
 		if (menu->list)
@@ -698,7 +732,7 @@ void zconfdump(FILE *out)
 	}
 }
 
-#include "lex.zconf.c"
+#include "zconf.lex.c"
 #include "util.c"
 #include "confdata.c"
 #include "expr.c"