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Diffstat (limited to 'scripts/kconfig/zconf.y')
-rw-r--r--scripts/kconfig/zconf.y126
1 files changed, 77 insertions, 49 deletions
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 001305fa08..ad6305b0f4 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -20,10 +20,10 @@
int cdebug = PRINTD;
-extern int zconflex(void);
+int yylex(void);
+static void yyerror(const char *err);
static void zconfprint(const char *err, ...);
static void zconf_error(const char *err, ...);
-static void zconferror(const char *err);
static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
struct symbol *symbol_hash[SYMBOL_HASHSIZE];
@@ -85,6 +85,7 @@ static struct menu *current_menu, *current_entry;
%nonassoc T_NOT
%type <string> prompt
+%type <symbol> nonconst_symbol
%type <symbol> symbol
%type <expr> expr
%type <expr> if_expr
@@ -101,14 +102,34 @@ static struct menu *current_menu, *current_entry;
} if_entry menu_entry choice_entry
%{
-/* Include zconf.hash.c here so it can see the token constants. */
-#include "zconf.hash.c"
+/* Include kconf_id.c here so it can see the token constants. */
+#include "kconf_id.c"
%}
%%
input: nl start | start;
-start: mainmenu_stmt stmt_list | stmt_list;
+start: mainmenu_stmt stmt_list | no_mainmenu_stmt stmt_list;
+
+/* mainmenu entry */
+
+mainmenu_stmt: T_MAINMENU prompt nl
+{
+ menu_add_prompt(P_MENU, $2, NULL);
+};
+
+/* Default main menu, if there's no mainmenu entry */
+
+no_mainmenu_stmt: /* empty */
+{
+ /*
+ * Hack: Keep the main menu title on the heap so we can safely free it
+ * later regardless of whether it comes from the 'prompt' in
+ * mainmenu_stmt or here
+ */
+ menu_add_prompt(P_MENU, xstrdup("Linux Kernel Configuration"), NULL);
+};
+
stmt_list:
/* empty */
@@ -119,7 +140,7 @@ stmt_list:
| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
| stmt_list option_name error T_EOL
{
- zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
+ zconf_error("unexpected option \"%s\"", $2->name);
}
| stmt_list error T_EOL { zconf_error("invalid statement"); }
;
@@ -145,26 +166,23 @@ option_error:
/* config/menuconfig entry */
-config_entry_start: T_CONFIG T_WORD T_EOL
+config_entry_start: T_CONFIG nonconst_symbol T_EOL
{
- struct symbol *sym = sym_lookup($2, 0);
- sym->flags |= SYMBOL_OPTIONAL;
- menu_add_entry(sym);
- printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
+ $2->flags |= SYMBOL_OPTIONAL;
+ menu_add_entry($2);
+ printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
};
config_stmt: config_entry_start config_option_list
{
- menu_end_entry();
printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
-menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
+menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
{
- struct symbol *sym = sym_lookup($2, 0);
- sym->flags |= SYMBOL_OPTIONAL;
- menu_add_entry(sym);
- printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
+ $2->flags |= SYMBOL_OPTIONAL;
+ menu_add_entry($2);
+ printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
};
menuconfig_stmt: menuconfig_entry_start config_option_list
@@ -173,7 +191,6 @@ menuconfig_stmt: menuconfig_entry_start config_option_list
current_entry->prompt->type = P_MENU;
else
zconfprint("warning: menuconfig statement without prompt");
- menu_end_entry();
printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
@@ -211,15 +228,15 @@ config_option: T_DEFAULT expr if_expr T_EOL
$1->stype);
};
-config_option: T_SELECT T_WORD if_expr T_EOL
+config_option: T_SELECT nonconst_symbol if_expr T_EOL
{
- menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
+ menu_add_symbol(P_SELECT, $2, $3);
printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
};
-config_option: T_IMPLY T_WORD if_expr T_EOL
+config_option: T_IMPLY nonconst_symbol if_expr T_EOL
{
- menu_add_symbol(P_IMPLY, sym_lookup($2, 0), $3);
+ menu_add_symbol(P_IMPLY, $2, $3);
printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
};
@@ -237,8 +254,10 @@ symbol_option_list:
| symbol_option_list T_WORD symbol_option_arg
{
const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
- if (id && id->flags & TF_OPTION)
+ if (id && id->flags & TF_OPTION) {
menu_add_option(id->token, $3);
+ free($3);
+ }
else
zconfprint("warning: ignoring unknown option %s", $2);
free($2);
@@ -257,6 +276,7 @@ choice: T_CHOICE word_opt T_EOL
sym->flags |= SYMBOL_AUTO;
menu_add_entry(sym);
menu_add_expr(P_CHOICE, NULL, NULL);
+ free($2);
printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
};
@@ -308,10 +328,10 @@ choice_option: T_OPTIONAL T_EOL
printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
};
-choice_option: T_DEFAULT T_WORD if_expr T_EOL
+choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
{
if ($1->stype == S_UNKNOWN) {
- menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
+ menu_add_symbol(P_DEFAULT, $2, $3);
printd(DEBUG_PARSE, "%s:%d:default\n",
zconf_curname(), zconf_lineno());
} else
@@ -351,13 +371,6 @@ 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
@@ -394,6 +407,7 @@ source_stmt: T_SOURCE prompt T_EOL
{
printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
zconf_nextfile($2);
+ free($2);
};
/* comment entry */
@@ -406,9 +420,7 @@ comment: T_COMMENT prompt T_EOL
};
comment_stmt: comment depends_list
-{
- menu_end_entry();
-};
+;
/* help option */
@@ -420,6 +432,17 @@ help_start: T_HELP T_EOL
help: help_start T_HELPTEXT
{
+ if (current_entry->help) {
+ free(current_entry->help);
+ zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
+ current_entry->sym->name ?: "<choice>");
+ }
+
+ /* Is the help text empty or all whitespace? */
+ if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
+ zconfprint("warning: '%s' defined with blank help text",
+ current_entry->sym->name ?: "<choice>");
+
current_entry->help = $2;
};
@@ -491,7 +514,10 @@ expr: symbol { $$ = expr_alloc_symbol($1); }
| expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
;
-symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
+/* For symbol definitions, selects, etc., where quotes are not accepted */
+nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
+
+symbol: nonconst_symbol
| T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
;
@@ -502,6 +528,7 @@ word_opt: /* empty */ { $$ = NULL; }
void conf_parse(const char *name)
{
+ const char *tmp;
struct symbol *sym;
int i;
@@ -509,25 +536,26 @@ void conf_parse(const char *name)
sym_init();
_menu_init();
- rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
if (getenv("ZCONF_DEBUG"))
- zconfdebug = 1;
- zconfparse();
- if (zconfnerrs)
+ yydebug = 1;
+ yyparse();
+ if (yynerrs)
exit(1);
if (!modules_sym)
modules_sym = sym_find( "n" );
+ tmp = rootmenu.prompt->text;
rootmenu.prompt->text = _(rootmenu.prompt->text);
rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
+ free((char*)tmp);
menu_finalize(&rootmenu);
for_all_symbols(i, sym) {
if (sym_check_deps(sym))
- zconfnerrs++;
+ yynerrs++;
}
- if (zconfnerrs)
+ if (yynerrs)
exit(1);
sym_set_change_count(1);
}
@@ -551,17 +579,17 @@ static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtok
{
if (id->token != endtoken) {
zconf_error("unexpected '%s' within %s block",
- kconf_id_strings + id->name, zconf_tokenname(starttoken));
- zconfnerrs++;
+ id->name, zconf_tokenname(starttoken));
+ yynerrs++;
return false;
}
if (current_menu->file != current_file) {
zconf_error("'%s' in different file than '%s'",
- kconf_id_strings + id->name, zconf_tokenname(starttoken));
+ id->name, zconf_tokenname(starttoken));
fprintf(stderr, "%s:%d: location of the '%s'\n",
current_menu->file->name, current_menu->lineno,
zconf_tokenname(starttoken));
- zconfnerrs++;
+ yynerrs++;
return false;
}
return true;
@@ -582,7 +610,7 @@ static void zconf_error(const char *err, ...)
{
va_list ap;
- zconfnerrs++;
+ yynerrs++;
fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
va_start(ap, err);
vfprintf(stderr, err, ap);
@@ -590,7 +618,7 @@ static void zconf_error(const char *err, ...)
fprintf(stderr, "\n");
}
-static void zconferror(const char *err)
+static void yyerror(const char *err)
{
fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
}
@@ -623,7 +651,7 @@ static void print_symbol(FILE *out, struct menu *menu)
fprintf(out, "\nconfig %s\n", sym->name);
switch (sym->type) {
case S_BOOLEAN:
- fputs(" boolean\n", out);
+ fputs(" bool\n", out);
break;
case S_TRISTATE:
fputs(" tristate\n", out);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 18:48:20 +0000