x86: simplify "make ARCH=x86" and fix kconfig all.config
[linux-2.6.git] / scripts / kconfig / conf.c
1 /*
2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3  * Released under the terms of the GNU GPL v2.0.
4  */
5
6 #include <ctype.h>
7 #include <stdlib.h>
8 #include <stdio.h>
9 #include <string.h>
10 #include <unistd.h>
11 #include <time.h>
12 #include <sys/stat.h>
13
14 #define LKC_DIRECT_LINK
15 #include "lkc.h"
16
17 static void conf(struct menu *menu);
18 static void check_conf(struct menu *menu);
19
20 enum {
21         ask_all,
22         ask_new,
23         ask_silent,
24         set_default,
25         set_yes,
26         set_mod,
27         set_no,
28         set_random
29 } input_mode = ask_all;
30 char *defconfig_file;
31
32 static int indent = 1;
33 static int valid_stdin = 1;
34 static int conf_cnt;
35 static char line[128];
36 static struct menu *rootEntry;
37
38 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
39
40 static const char *get_help(struct menu *menu)
41 {
42         if (menu_has_help(menu))
43                 return menu_get_help(menu);
44         else
45                 return nohelp_text;
46 }
47
48 static void strip(char *str)
49 {
50         char *p = str;
51         int l;
52
53         while ((isspace(*p)))
54                 p++;
55         l = strlen(p);
56         if (p != str)
57                 memmove(str, p, l + 1);
58         if (!l)
59                 return;
60         p = str + l - 1;
61         while ((isspace(*p)))
62                 *p-- = 0;
63 }
64
65 static void check_stdin(void)
66 {
67         if (!valid_stdin && input_mode == ask_silent) {
68                 printf(_("aborted!\n\n"));
69                 printf(_("Console input/output is redirected. "));
70                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
71                 exit(1);
72         }
73 }
74
75 static int conf_askvalue(struct symbol *sym, const char *def)
76 {
77         enum symbol_type type = sym_get_type(sym);
78         tristate val;
79
80         if (!sym_has_value(sym))
81                 printf("(NEW) ");
82
83         line[0] = '\n';
84         line[1] = 0;
85
86         if (!sym_is_changable(sym)) {
87                 printf("%s\n", def);
88                 line[0] = '\n';
89                 line[1] = 0;
90                 return 0;
91         }
92
93         switch (input_mode) {
94         case set_no:
95         case set_mod:
96         case set_yes:
97         case set_random:
98                 if (sym_has_value(sym)) {
99                         printf("%s\n", def);
100                         return 0;
101                 }
102                 break;
103         case ask_new:
104         case ask_silent:
105                 if (sym_has_value(sym)) {
106                         printf("%s\n", def);
107                         return 0;
108                 }
109                 check_stdin();
110         case ask_all:
111                 fflush(stdout);
112                 fgets(line, 128, stdin);
113                 return 1;
114         case set_default:
115                 printf("%s\n", def);
116                 return 1;
117         default:
118                 break;
119         }
120
121         switch (type) {
122         case S_INT:
123         case S_HEX:
124         case S_STRING:
125                 printf("%s\n", def);
126                 return 1;
127         default:
128                 ;
129         }
130         switch (input_mode) {
131         case set_yes:
132                 if (sym_tristate_within_range(sym, yes)) {
133                         line[0] = 'y';
134                         line[1] = '\n';
135                         line[2] = 0;
136                         break;
137                 }
138         case set_mod:
139                 if (type == S_TRISTATE) {
140                         if (sym_tristate_within_range(sym, mod)) {
141                                 line[0] = 'm';
142                                 line[1] = '\n';
143                                 line[2] = 0;
144                                 break;
145                         }
146                 } else {
147                         if (sym_tristate_within_range(sym, yes)) {
148                                 line[0] = 'y';
149                                 line[1] = '\n';
150                                 line[2] = 0;
151                                 break;
152                         }
153                 }
154         case set_no:
155                 if (sym_tristate_within_range(sym, no)) {
156                         line[0] = 'n';
157                         line[1] = '\n';
158                         line[2] = 0;
159                         break;
160                 }
161         case set_random:
162                 do {
163                         val = (tristate)(random() % 3);
164                 } while (!sym_tristate_within_range(sym, val));
165                 switch (val) {
166                 case no: line[0] = 'n'; break;
167                 case mod: line[0] = 'm'; break;
168                 case yes: line[0] = 'y'; break;
169                 }
170                 line[1] = '\n';
171                 line[2] = 0;
172                 break;
173         default:
174                 break;
175         }
176         printf("%s", line);
177         return 1;
178 }
179
180 int conf_string(struct menu *menu)
181 {
182         struct symbol *sym = menu->sym;
183         const char *def;
184
185         while (1) {
186                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
187                 printf("(%s) ", sym->name);
188                 def = sym_get_string_value(sym);
189                 if (sym_get_string_value(sym))
190                         printf("[%s] ", def);
191                 if (!conf_askvalue(sym, def))
192                         return 0;
193                 switch (line[0]) {
194                 case '\n':
195                         break;
196                 case '?':
197                         /* print help */
198                         if (line[1] == '\n') {
199                                 printf("\n%s\n", get_help(menu));
200                                 def = NULL;
201                                 break;
202                         }
203                 default:
204                         line[strlen(line)-1] = 0;
205                         def = line;
206                 }
207                 if (def && sym_set_string_value(sym, def))
208                         return 0;
209         }
210 }
211
212 static int conf_sym(struct menu *menu)
213 {
214         struct symbol *sym = menu->sym;
215         int type;
216         tristate oldval, newval;
217
218         while (1) {
219                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
220                 if (sym->name)
221                         printf("(%s) ", sym->name);
222                 type = sym_get_type(sym);
223                 putchar('[');
224                 oldval = sym_get_tristate_value(sym);
225                 switch (oldval) {
226                 case no:
227                         putchar('N');
228                         break;
229                 case mod:
230                         putchar('M');
231                         break;
232                 case yes:
233                         putchar('Y');
234                         break;
235                 }
236                 if (oldval != no && sym_tristate_within_range(sym, no))
237                         printf("/n");
238                 if (oldval != mod && sym_tristate_within_range(sym, mod))
239                         printf("/m");
240                 if (oldval != yes && sym_tristate_within_range(sym, yes))
241                         printf("/y");
242                 if (menu_has_help(menu))
243                         printf("/?");
244                 printf("] ");
245                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
246                         return 0;
247                 strip(line);
248
249                 switch (line[0]) {
250                 case 'n':
251                 case 'N':
252                         newval = no;
253                         if (!line[1] || !strcmp(&line[1], "o"))
254                                 break;
255                         continue;
256                 case 'm':
257                 case 'M':
258                         newval = mod;
259                         if (!line[1])
260                                 break;
261                         continue;
262                 case 'y':
263                 case 'Y':
264                         newval = yes;
265                         if (!line[1] || !strcmp(&line[1], "es"))
266                                 break;
267                         continue;
268                 case 0:
269                         newval = oldval;
270                         break;
271                 case '?':
272                         goto help;
273                 default:
274                         continue;
275                 }
276                 if (sym_set_tristate_value(sym, newval))
277                         return 0;
278 help:
279                 printf("\n%s\n", get_help(menu));
280         }
281 }
282
283 static int conf_choice(struct menu *menu)
284 {
285         struct symbol *sym, *def_sym;
286         struct menu *child;
287         int type;
288         bool is_new;
289
290         sym = menu->sym;
291         type = sym_get_type(sym);
292         is_new = !sym_has_value(sym);
293         if (sym_is_changable(sym)) {
294                 conf_sym(menu);
295                 sym_calc_value(sym);
296                 switch (sym_get_tristate_value(sym)) {
297                 case no:
298                         return 1;
299                 case mod:
300                         return 0;
301                 case yes:
302                         break;
303                 }
304         } else {
305                 switch (sym_get_tristate_value(sym)) {
306                 case no:
307                         return 1;
308                 case mod:
309                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
310                         return 0;
311                 case yes:
312                         break;
313                 }
314         }
315
316         while (1) {
317                 int cnt, def;
318
319                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
320                 def_sym = sym_get_choice_value(sym);
321                 cnt = def = 0;
322                 line[0] = 0;
323                 for (child = menu->list; child; child = child->next) {
324                         if (!menu_is_visible(child))
325                                 continue;
326                         if (!child->sym) {
327                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
328                                 continue;
329                         }
330                         cnt++;
331                         if (child->sym == def_sym) {
332                                 def = cnt;
333                                 printf("%*c", indent, '>');
334                         } else
335                                 printf("%*c", indent, ' ');
336                         printf(" %d. %s", cnt, menu_get_prompt(child));
337                         if (child->sym->name)
338                                 printf(" (%s)", child->sym->name);
339                         if (!sym_has_value(child->sym))
340                                 printf(" (NEW)");
341                         printf("\n");
342                 }
343                 printf("%*schoice", indent - 1, "");
344                 if (cnt == 1) {
345                         printf("[1]: 1\n");
346                         goto conf_childs;
347                 }
348                 printf("[1-%d", cnt);
349                 if (menu_has_help(menu))
350                         printf("?");
351                 printf("]: ");
352                 switch (input_mode) {
353                 case ask_new:
354                 case ask_silent:
355                         if (!is_new) {
356                                 cnt = def;
357                                 printf("%d\n", cnt);
358                                 break;
359                         }
360                         check_stdin();
361                 case ask_all:
362                         fflush(stdout);
363                         fgets(line, 128, stdin);
364                         strip(line);
365                         if (line[0] == '?') {
366                                 printf("\n%s\n", get_help(menu));
367                                 continue;
368                         }
369                         if (!line[0])
370                                 cnt = def;
371                         else if (isdigit(line[0]))
372                                 cnt = atoi(line);
373                         else
374                                 continue;
375                         break;
376                 case set_random:
377                         def = (random() % cnt) + 1;
378                 case set_default:
379                 case set_yes:
380                 case set_mod:
381                 case set_no:
382                         cnt = def;
383                         printf("%d\n", cnt);
384                         break;
385                 }
386
387         conf_childs:
388                 for (child = menu->list; child; child = child->next) {
389                         if (!child->sym || !menu_is_visible(child))
390                                 continue;
391                         if (!--cnt)
392                                 break;
393                 }
394                 if (!child)
395                         continue;
396                 if (line[strlen(line) - 1] == '?') {
397                         printf("\n%s\n", get_help(child));
398                         continue;
399                 }
400                 sym_set_choice_value(sym, child->sym);
401                 if (child->list) {
402                         indent += 2;
403                         conf(child->list);
404                         indent -= 2;
405                 }
406                 return 1;
407         }
408 }
409
410 static void conf(struct menu *menu)
411 {
412         struct symbol *sym;
413         struct property *prop;
414         struct menu *child;
415
416         if (!menu_is_visible(menu))
417                 return;
418
419         sym = menu->sym;
420         prop = menu->prompt;
421         if (prop) {
422                 const char *prompt;
423
424                 switch (prop->type) {
425                 case P_MENU:
426                         if (input_mode == ask_silent && rootEntry != menu) {
427                                 check_conf(menu);
428                                 return;
429                         }
430                 case P_COMMENT:
431                         prompt = menu_get_prompt(menu);
432                         if (prompt)
433                                 printf("%*c\n%*c %s\n%*c\n",
434                                         indent, '*',
435                                         indent, '*', prompt,
436                                         indent, '*');
437                 default:
438                         ;
439                 }
440         }
441
442         if (!sym)
443                 goto conf_childs;
444
445         if (sym_is_choice(sym)) {
446                 conf_choice(menu);
447                 if (sym->curr.tri != mod)
448                         return;
449                 goto conf_childs;
450         }
451
452         switch (sym->type) {
453         case S_INT:
454         case S_HEX:
455         case S_STRING:
456                 conf_string(menu);
457                 break;
458         default:
459                 conf_sym(menu);
460                 break;
461         }
462
463 conf_childs:
464         if (sym)
465                 indent += 2;
466         for (child = menu->list; child; child = child->next)
467                 conf(child);
468         if (sym)
469                 indent -= 2;
470 }
471
472 static void check_conf(struct menu *menu)
473 {
474         struct symbol *sym;
475         struct menu *child;
476
477         if (!menu_is_visible(menu))
478                 return;
479
480         sym = menu->sym;
481         if (sym && !sym_has_value(sym)) {
482                 if (sym_is_changable(sym) ||
483                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
484                         if (!conf_cnt++)
485                                 printf(_("*\n* Restart config...\n*\n"));
486                         rootEntry = menu_get_parent_menu(menu);
487                         conf(rootEntry);
488                 }
489         }
490
491         for (child = menu->list; child; child = child->next)
492                 check_conf(child);
493 }
494
495 int main(int ac, char **av)
496 {
497         int i = 1;
498         const char *name;
499         struct stat tmpstat;
500
501         if (ac > i && av[i][0] == '-') {
502                 switch (av[i++][1]) {
503                 case 'o':
504                         input_mode = ask_new;
505                         break;
506                 case 's':
507                         input_mode = ask_silent;
508                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
509                         break;
510                 case 'd':
511                         input_mode = set_default;
512                         break;
513                 case 'D':
514                         input_mode = set_default;
515                         defconfig_file = av[i++];
516                         if (!defconfig_file) {
517                                 printf(_("%s: No default config file specified\n"),
518                                         av[0]);
519                                 exit(1);
520                         }
521                         break;
522                 case 'n':
523                         input_mode = set_no;
524                         break;
525                 case 'm':
526                         input_mode = set_mod;
527                         break;
528                 case 'y':
529                         input_mode = set_yes;
530                         break;
531                 case 'r':
532                         input_mode = set_random;
533                         srandom(time(NULL));
534                         break;
535                 case 'h':
536                 case '?':
537                         fprintf(stderr, "See README for usage info\n");
538                         exit(0);
539                 }
540         }
541         name = av[i];
542         if (!name) {
543                 printf(_("%s: Kconfig file missing\n"), av[0]);
544                 exit(1);
545         }
546         conf_parse(name);
547         //zconfdump(stdout);
548         switch (input_mode) {
549         case set_default:
550                 if (!defconfig_file)
551                         defconfig_file = conf_get_default_confname();
552                 if (conf_read(defconfig_file)) {
553                         printf("***\n"
554                                 "*** Can't find default configuration \"%s\"!\n"
555                                 "***\n", defconfig_file);
556                         exit(1);
557                 }
558                 break;
559         case ask_silent:
560                 if (stat(".config", &tmpstat)) {
561                         printf(_("***\n"
562                                 "*** You have not yet configured your kernel!\n"
563                                 "*** (missing kernel .config file)\n"
564                                 "***\n"
565                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
566                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
567                                 "***\n"));
568                         exit(1);
569                 }
570         case ask_all:
571         case ask_new:
572                 conf_read(NULL);
573                 break;
574         case set_no:
575         case set_mod:
576         case set_yes:
577         case set_random:
578                 name = getenv("KCONFIG_ALLCONFIG");
579                 if (name && !stat(name, &tmpstat)) {
580                         conf_read_simple(name, S_DEF_USER);
581                         break;
582                 }
583                 switch (input_mode) {
584                 case set_no:     name = "allno.config"; break;
585                 case set_mod:    name = "allmod.config"; break;
586                 case set_yes:    name = "allyes.config"; break;
587                 case set_random: name = "allrandom.config"; break;
588                 default: break;
589                 }
590                 if (!stat(name, &tmpstat))
591                         conf_read_simple(name, S_DEF_USER);
592                 else if (!stat("all.config", &tmpstat))
593                         conf_read_simple("all.config", S_DEF_USER);
594                 break;
595         default:
596                 break;
597         }
598
599         if (input_mode != ask_silent) {
600                 rootEntry = &rootmenu;
601                 conf(&rootmenu);
602                 if (input_mode == ask_all) {
603                         input_mode = ask_silent;
604                         valid_stdin = 1;
605                 }
606         } else if (conf_get_changed()) {
607                 name = getenv("KCONFIG_NOSILENTUPDATE");
608                 if (name && *name) {
609                         fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
610                         return 1;
611                 }
612         } else
613                 goto skip_check;
614
615         do {
616                 conf_cnt = 0;
617                 check_conf(&rootmenu);
618         } while (conf_cnt);
619         if (conf_write(NULL)) {
620                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
621                 return 1;
622         }
623 skip_check:
624         if (input_mode == ask_silent && conf_write_autoconf()) {
625                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
626                 return 1;
627         }
628
629         return 0;
630 }