diff options
Diffstat (limited to 'scripts/kconfig/zconf.y')
| -rw-r--r-- | scripts/kconfig/zconf.y | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y index 8a82aaf27581..e15e8c7063e0 100644 --- a/scripts/kconfig/zconf.y +++ b/scripts/kconfig/zconf.y @@ -77,6 +77,9 @@ static struct menu *current_menu, *current_entry; %token T_CLOSE_PAREN %token T_OPEN_PAREN %token T_EOL +%token <string> T_VARIABLE +%token T_ASSIGN +%token <string> T_ASSIGN_VAL %left T_OR %left T_AND @@ -92,7 +95,7 @@ static struct menu *current_menu, *current_entry; %type <id> end %type <id> option_name %type <menu> if_entry menu_entry choice_entry -%type <string> symbol_option_arg word_opt +%type <string> symbol_option_arg word_opt assign_val %destructor { fprintf(stderr, "%s:%d: missing end statement for this entry\n", @@ -143,6 +146,7 @@ common_stmt: | config_stmt | menuconfig_stmt | source_stmt + | assignment_stmt ; option_error: @@ -511,6 +515,15 @@ symbol: nonconst_symbol word_opt: /* empty */ { $$ = NULL; } | T_WORD +/* assignment statement */ + +assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3); free($1); free($3); } + +assign_val: + /* empty */ { $$ = xstrdup(""); }; + | T_ASSIGN_VAL +; + %% void conf_parse(const char *name) @@ -525,6 +538,10 @@ void conf_parse(const char *name) if (getenv("ZCONF_DEBUG")) yydebug = 1; yyparse(); + + /* Variables are expanded in the parse phase. We can free them here. */ + variable_all_del(); + if (yynerrs) exit(1); if (!modules_sym) |