1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
20 static void conf(struct menu
*menu
);
21 static void check_conf(struct menu
*menu
);
41 static enum input_mode input_mode
= oldaskconfig
;
43 static int indent
= 1;
45 static int sync_kconfig
;
47 static char line
[PATH_MAX
];
48 static struct menu
*rootEntry
;
50 static void print_help(struct menu
*menu
)
52 struct gstr help
= str_new();
54 menu_get_ext_help(menu
, &help
);
56 printf("\n%s\n", str_get(&help
));
60 static void strip(char *str
)
69 memmove(str
, p
, l
+ 1);
77 /* Helper function to facilitate fgets() by Jean Sacren. */
78 static void xfgets(char *str
, int size
, FILE *in
)
80 if (!fgets(str
, size
, in
))
81 fprintf(stderr
, "\nError in reading or end of file.\n");
87 static int conf_askvalue(struct symbol
*sym
, const char *def
)
89 enum symbol_type type
= sym_get_type(sym
);
91 if (!sym_has_value(sym
))
97 if (!sym_is_changeable(sym
)) {
104 switch (input_mode
) {
107 if (sym_has_value(sym
)) {
114 xfgets(line
, sizeof(line
), stdin
);
133 static int conf_string(struct menu
*menu
)
135 struct symbol
*sym
= menu
->sym
;
139 printf("%*s%s ", indent
- 1, "", menu
->prompt
->text
);
140 printf("(%s) ", sym
->name
);
141 def
= sym_get_string_value(sym
);
142 if (sym_get_string_value(sym
))
143 printf("[%s] ", def
);
144 if (!conf_askvalue(sym
, def
))
151 if (line
[1] == '\n') {
158 line
[strlen(line
)-1] = 0;
161 if (def
&& sym_set_string_value(sym
, def
))
166 static int conf_sym(struct menu
*menu
)
168 struct symbol
*sym
= menu
->sym
;
169 tristate oldval
, newval
;
172 printf("%*s%s ", indent
- 1, "", menu
->prompt
->text
);
174 printf("(%s) ", sym
->name
);
176 oldval
= sym_get_tristate_value(sym
);
188 if (oldval
!= no
&& sym_tristate_within_range(sym
, no
))
190 if (oldval
!= mod
&& sym_tristate_within_range(sym
, mod
))
192 if (oldval
!= yes
&& sym_tristate_within_range(sym
, yes
))
195 if (!conf_askvalue(sym
, sym_get_string_value(sym
)))
203 if (!line
[1] || !strcmp(&line
[1], "o"))
215 if (!line
[1] || !strcmp(&line
[1], "es"))
226 if (sym_set_tristate_value(sym
, newval
))
233 static int conf_choice(struct menu
*menu
)
235 struct symbol
*sym
, *def_sym
;
240 is_new
= !sym_has_value(sym
);
241 if (sym_is_changeable(sym
)) {
244 switch (sym_get_tristate_value(sym
)) {
253 switch (sym_get_tristate_value(sym
)) {
257 printf("%*s%s\n", indent
- 1, "", menu_get_prompt(menu
));
267 printf("%*s%s\n", indent
- 1, "", menu_get_prompt(menu
));
268 def_sym
= sym_get_choice_value(sym
);
271 for (child
= menu
->list
; child
; child
= child
->next
) {
272 if (!menu_is_visible(child
))
275 printf("%*c %s\n", indent
, '*', menu_get_prompt(child
));
279 if (child
->sym
== def_sym
) {
281 printf("%*c", indent
, '>');
283 printf("%*c", indent
, ' ');
284 printf(" %d. %s", cnt
, menu_get_prompt(child
));
285 if (child
->sym
->name
)
286 printf(" (%s)", child
->sym
->name
);
287 if (!sym_has_value(child
->sym
))
291 printf("%*schoice", indent
- 1, "");
296 printf("[1-%d?]: ", cnt
);
297 switch (input_mode
) {
308 xfgets(line
, sizeof(line
), stdin
);
310 if (line
[0] == '?') {
316 else if (isdigit(line
[0]))
326 for (child
= menu
->list
; child
; child
= child
->next
) {
327 if (!child
->sym
|| !menu_is_visible(child
))
334 if (line
[0] && line
[strlen(line
) - 1] == '?') {
338 sym_set_choice_value(sym
, child
->sym
);
339 for (child
= child
->list
; child
; child
= child
->next
) {
348 static void conf(struct menu
*menu
)
351 struct property
*prop
;
354 if (!menu_is_visible(menu
))
362 switch (prop
->type
) {
365 * Except in oldaskconfig mode, we show only menus that
366 * contain new symbols.
368 if (input_mode
!= oldaskconfig
&& rootEntry
!= menu
) {
374 prompt
= menu_get_prompt(menu
);
376 printf("%*c\n%*c %s\n%*c\n",
388 if (sym_is_choice(sym
)) {
390 if (sym
->curr
.tri
!= mod
)
409 for (child
= menu
->list
; child
; child
= child
->next
)
415 static void check_conf(struct menu
*menu
)
420 if (!menu_is_visible(menu
))
424 if (sym
&& !sym_has_value(sym
)) {
425 if (sym_is_changeable(sym
) ||
426 (sym_is_choice(sym
) && sym_get_tristate_value(sym
) == yes
)) {
427 if (input_mode
== listnewconfig
) {
431 if (sym
->type
== S_STRING
) {
432 str
= sym_get_string_value(sym
);
433 str
= sym_escape_string_value(str
);
434 printf("%s%s=%s\n", CONFIG_
, sym
->name
, str
);
437 str
= sym_get_string_value(sym
);
438 printf("%s%s=%s\n", CONFIG_
, sym
->name
, str
);
441 } else if (input_mode
== helpnewconfig
) {
448 printf("*\n* Restart config...\n*\n");
449 rootEntry
= menu_get_parent_menu(menu
);
455 for (child
= menu
->list
; child
; child
= child
->next
)
459 static struct option long_opts
[] = {
460 {"oldaskconfig", no_argument
, NULL
, oldaskconfig
},
461 {"oldconfig", no_argument
, NULL
, oldconfig
},
462 {"syncconfig", no_argument
, NULL
, syncconfig
},
463 {"defconfig", required_argument
, NULL
, defconfig
},
464 {"savedefconfig", required_argument
, NULL
, savedefconfig
},
465 {"allnoconfig", no_argument
, NULL
, allnoconfig
},
466 {"allyesconfig", no_argument
, NULL
, allyesconfig
},
467 {"allmodconfig", no_argument
, NULL
, allmodconfig
},
468 {"alldefconfig", no_argument
, NULL
, alldefconfig
},
469 {"randconfig", no_argument
, NULL
, randconfig
},
470 {"listnewconfig", no_argument
, NULL
, listnewconfig
},
471 {"helpnewconfig", no_argument
, NULL
, helpnewconfig
},
472 {"olddefconfig", no_argument
, NULL
, olddefconfig
},
473 {"yes2modconfig", no_argument
, NULL
, yes2modconfig
},
474 {"mod2yesconfig", no_argument
, NULL
, mod2yesconfig
},
475 {"fatalrecursive", no_argument
, NULL
, fatalrecursive
},
479 static void conf_usage(const char *progname
)
482 printf("Usage: %s [-s] [--fatalrecursive] [option] <kconfig-file>\n", progname
);
483 printf("[option] is _one_ of the following:\n");
484 printf(" --listnewconfig List new options\n");
485 printf(" --helpnewconfig List new options and help text\n");
486 printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
487 printf(" --oldconfig Update a configuration using a provided .config as base\n");
488 printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
489 " include/{generated/,config/}\n");
490 printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
491 printf(" --defconfig <file> New config with default defined in <file>\n");
492 printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
493 printf(" --allnoconfig New config where all options are answered with no\n");
494 printf(" --allyesconfig New config where all options are answered with yes\n");
495 printf(" --allmodconfig New config where all options are answered with mod\n");
496 printf(" --alldefconfig New config with all symbols set to default\n");
497 printf(" --randconfig New config with random answer to all options\n");
498 printf(" --yes2modconfig Change answers from yes to mod if possible\n");
499 printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
502 int main(int ac
, char **av
)
504 const char *progname
= av
[0];
506 const char *name
, *defconfig_file
= NULL
/* gcc uninit */;
507 const char *input_file
= NULL
, *output_file
= NULL
;
508 int no_conf_write
= 0;
510 tty_stdio
= isatty(0) && isatty(1);
512 while ((opt
= getopt_long(ac
, av
, "r:w:s", long_opts
, NULL
)) != -1) {
514 conf_set_message_callback(NULL
);
520 * syncconfig is invoked during the build stage.
521 * Suppress distracting "configuration written to ..."
523 conf_set_message_callback(NULL
);
528 defconfig_file
= optarg
;
537 * Use microseconds derived seed,
538 * compensate for systems where it may be zero
540 gettimeofday(&now
, NULL
);
541 seed
= (unsigned int)((now
.tv_sec
+ 1) * (now
.tv_usec
+ 1));
543 seed_env
= getenv("KCONFIG_SEED");
544 if( seed_env
&& *seed_env
) {
546 int tmp
= (int)strtol(seed_env
, &endp
, 0);
551 fprintf( stderr
, "KCONFIG_SEED=0x%X\n", seed
);
568 recursive_is_error
= 1;
574 output_file
= optarg
;
577 conf_usage(progname
);
581 input_mode
= (enum input_mode
)opt
;
584 fprintf(stderr
, "%s: Kconfig file missing\n", av
[0]);
585 conf_usage(progname
);
592 switch (input_mode
) {
594 if (conf_read(defconfig_file
)) {
597 "*** Can't find default configuration \"%s\"!\n"
617 conf_read(input_file
);
624 name
= getenv("KCONFIG_NOSILENTUPDATE");
626 if (conf_get_changed()) {
628 "\n*** The configuration requires explicit update.\n\n");
635 switch (input_mode
) {
637 conf_set_all_new_symbols(def_no
);
640 conf_set_all_new_symbols(def_yes
);
643 conf_set_all_new_symbols(def_mod
);
646 conf_set_all_new_symbols(def_default
);
649 /* Really nothing to do in this loop */
650 while (conf_set_all_new_symbols(def_random
)) ;
653 conf_set_all_new_symbols(def_default
);
658 conf_rewrite_mod_or_yes(def_y2m
);
661 conf_rewrite_mod_or_yes(def_m2y
);
664 rootEntry
= &rootmenu
;
666 input_mode
= oldconfig
;
672 /* Update until a loop caused no more changes */
675 check_conf(&rootmenu
);
683 if (input_mode
== savedefconfig
) {
684 if (conf_write_defconfig(defconfig_file
)) {
685 fprintf(stderr
, "n*** Error while saving defconfig to: %s\n\n",
689 } else if (input_mode
!= listnewconfig
&& input_mode
!= helpnewconfig
) {
690 if ((output_file
|| !no_conf_write
) &&
691 conf_write(output_file
)) {
692 fprintf(stderr
, "\n*** Error during writing of the configuration.\n\n");
697 * Create auto.conf if it does not exist.
698 * This prevents GNU Make 4.1 or older from emitting
699 * "include/config/auto.conf: No such file or directory"
700 * in the top-level Makefile
702 * syncconfig always creates or updates auto.conf because it is
703 * used during the build.
705 if (conf_write_autoconf(sync_kconfig
) && sync_kconfig
) {
707 "\n*** Error during sync of the configuration.\n\n");