Commit f6a88aa8 authored by Roman Zippel's avatar Roman Zippel Committed by Sam Ravnborg

kconfig: add symbol option config syntax

This adds the general framework to the parser to define options for config
symbols with a syntax like:

config FOO
	option bar[="arg"]
Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent f1d28fb0
......@@ -8,7 +8,7 @@
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 31
#define YY_FLEX_SUBMINOR_VERSION 33
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
......@@ -30,7 +30,15 @@
/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
#if __STDC_VERSION__ >= 199901L
/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
* if you want the limit (max/min) macros for int types.
*/
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif
#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
......@@ -134,6 +142,10 @@ typedef unsigned int flex_uint32_t;
#define YY_BUF_SIZE 16384
#endif
/* The state buf must be large enough to hold one state per character in the main buffer.
*/
#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
......@@ -267,7 +279,7 @@ int zconfleng;
/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 1; /* whether we need to initialize */
static int yy_init = 0; /* whether we need to initialize */
static int yy_start = 0; /* start state number */
/* Flag which is used to allow zconfwrap()'s to do buffer switches
......@@ -820,6 +832,8 @@ void alloc_string(const char *str, int size)
#define YY_EXTRA_TYPE void *
#endif
static int yy_init_globals (void );
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
......@@ -942,9 +956,9 @@ YY_DECL
int str = 0;
int ts, i;
if ( (yy_init) )
if ( !(yy_init) )
{
(yy_init) = 0;
(yy_init) = 1;
#ifdef YY_USER_INIT
YY_USER_INIT;
......@@ -1452,7 +1466,7 @@ static int yy_get_next_buffer (void)
else
{
size_t num_to_read =
int num_to_read =
YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
while ( num_to_read <= 0 )
......@@ -1969,16 +1983,16 @@ YY_BUFFER_STATE zconf_scan_buffer (char * base, yy_size_t size )
/** Setup the input buffer state to scan a string. The next call to zconflex() will
* scan from a @e copy of @a str.
* @param yy_str a NUL-terminated string to scan
* @param yystr a NUL-terminated string to scan
*
* @return the newly allocated buffer state object.
* @note If you want to scan bytes that may contain NUL values, then use
* zconf_scan_bytes() instead.
*/
YY_BUFFER_STATE zconf_scan_string (yyconst char * yy_str )
YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr )
{
return zconf_scan_bytes(yy_str,strlen(yy_str) );
return zconf_scan_bytes(yystr,strlen(yystr) );
}
/** Setup the input buffer state to scan the given bytes. The next call to zconflex() will
......@@ -1988,7 +2002,7 @@ YY_BUFFER_STATE zconf_scan_string (yyconst char * yy_str )
*
* @return the newly allocated buffer state object.
*/
YY_BUFFER_STATE zconf_scan_bytes (yyconst char * bytes, int len )
YY_BUFFER_STATE zconf_scan_bytes (yyconst char * yybytes, int _yybytes_len )
{
YY_BUFFER_STATE b;
char *buf;
......@@ -1996,15 +2010,15 @@ YY_BUFFER_STATE zconf_scan_bytes (yyconst char * bytes, int len )
int i;
/* Get memory for full buffer, including space for trailing EOB's. */
n = len + 2;
n = _yybytes_len + 2;
buf = (char *) zconfalloc(n );
if ( ! buf )
YY_FATAL_ERROR( "out of dynamic memory in zconf_scan_bytes()" );
for ( i = 0; i < len; ++i )
buf[i] = bytes[i];
for ( i = 0; i < _yybytes_len; ++i )
buf[i] = yybytes[i];
buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
b = zconf_scan_buffer(buf,n );
if ( ! b )
......@@ -2125,6 +2139,34 @@ void zconfset_debug (int bdebug )
zconf_flex_debug = bdebug ;
}
static int yy_init_globals (void)
{
/* Initialization is the same as for the non-reentrant scanner.
* This function is called from zconflex_destroy(), so don't allocate here.
*/
(yy_buffer_stack) = 0;
(yy_buffer_stack_top) = 0;
(yy_buffer_stack_max) = 0;
(yy_c_buf_p) = (char *) 0;
(yy_init) = 0;
(yy_start) = 0;
/* Defined in main.c */
#ifdef YY_STDINIT
zconfin = stdin;
zconfout = stdout;
#else
zconfin = (FILE *) 0;
zconfout = (FILE *) 0;
#endif
/* For future reference: Set errno on error, since we are called by
* zconflex_init()
*/
return 0;
}
/* zconflex_destroy is for both reentrant and non-reentrant scanners. */
int zconflex_destroy (void)
{
......@@ -2140,6 +2182,10 @@ int zconflex_destroy (void)
zconffree((yy_buffer_stack) );
(yy_buffer_stack) = NULL;
/* Reset the globals. This is important in a non-reentrant scanner so the next time
* zconflex() is called, initialization will occur. */
yy_init_globals( );
return 0;
}
......@@ -2191,19 +2237,6 @@ void zconffree (void * ptr )
#define YYTABLES_NAME "yytables"
#undef YY_NEW_FILE
#undef YY_FLUSH_BUFFER
#undef yy_set_bol
#undef yy_new_buffer
#undef yy_set_interactive
#undef yytext_ptr
#undef YY_DO_BEFORE_ACTION
#ifdef YY_DECL_IS_OURS
#undef YY_DECL_IS_OURS
#undef YY_DECL
#endif
void zconf_starthelp(void)
{
new_string();
......
......@@ -40,6 +40,10 @@ extern "C" {
#define TF_COMMAND 0x0001
#define TF_PARAM 0x0002
#define TF_OPTION 0x0004
#define T_OPT_MODULES 1
#define T_OPT_DEFCONFIG_LIST 2
struct kconf_id {
int name;
......@@ -78,6 +82,7 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e
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);
void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep);
void menu_add_option(int token, char *arg);
void menu_finalize(struct menu *parent);
void menu_set_type(int type);
......
......@@ -152,6 +152,10 @@ void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
}
void menu_add_option(int token, char *arg)
{
}
static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2)
{
return sym2->type == S_INT || sym2->type == S_HEX ||
......
......@@ -39,5 +39,8 @@ string, T_TYPE, TF_COMMAND, S_STRING
select, T_SELECT, TF_COMMAND
enable, T_SELECT, TF_COMMAND
range, T_RANGE, TF_COMMAND
option, T_OPTION, TF_COMMAND
on, T_ON, TF_PARAM
modules, T_OPT_MODULES, TF_OPTION
defconfig_list, T_OPT_DEFCONFIG_LIST,TF_OPTION
%%
This diff is collapsed.
This diff is collapsed.
......@@ -71,6 +71,7 @@ static struct menu *current_menu, *current_entry;
%token <id>T_DEFAULT
%token <id>T_SELECT
%token <id>T_RANGE
%token <id>T_OPTION
%token <id>T_ON
%token <string> T_WORD
%token <string> T_WORD_QUOTE
......@@ -91,6 +92,7 @@ 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
%destructor {
fprintf(stderr, "%s:%d: missing end statement for this entry\n",
......@@ -173,6 +175,7 @@ menuconfig_stmt: menuconfig_entry_start config_option_list
config_option_list:
/* empty */
| config_option_list config_option
| config_option_list symbol_option
| config_option_list depends
| config_option_list help
| config_option_list option_error
......@@ -215,6 +218,26 @@ config_option: T_RANGE symbol symbol if_expr T_EOL
printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
};
symbol_option: T_OPTION symbol_option_list T_EOL
;
symbol_option_list:
/* empty */
| symbol_option_list T_WORD symbol_option_arg
{
struct kconf_id *id = kconf_id_lookup($2, strlen($2));
if (id && id->flags & TF_OPTION)
menu_add_option(id->token, $3);
else
zconfprint("warning: ignoring unknown option %s", $2);
free($2);
};
symbol_option_arg:
/* empty */ { $$ = NULL; }
| T_EQUAL prompt { $$ = $2; }
;
/* choice entry */
choice: T_CHOICE T_EOL
......
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