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Up to [Qemu by Fabrice Bellard] / qemu / roms / seabios / tools / kconfig|
Return to zconf.y CVS log | Up to [Qemu by Fabrice Bellard] / qemu / roms / seabios / tools / kconfig |
1.1 root 1: %{
2: /*
3: * Copyright (C) 2002 Roman Zippel <[email protected]>
4: * Released under the terms of the GNU GPL v2.0.
5: */
6:
7: #include <ctype.h>
8: #include <stdarg.h>
9: #include <stdio.h>
10: #include <stdlib.h>
11: #include <string.h>
12: #include <stdbool.h>
13:
14: #define LKC_DIRECT_LINK
15: #include "lkc.h"
16:
17: #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
18:
19: #define PRINTD 0x0001
20: #define DEBUG_PARSE 0x0002
21:
22: int cdebug = PRINTD;
23:
24: extern int zconflex(void);
25: static void zconfprint(const char *err, ...);
26: static void zconf_error(const char *err, ...);
27: static void zconferror(const char *err);
28: static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
29:
30: struct symbol *symbol_hash[SYMBOL_HASHSIZE];
31:
32: static struct menu *current_menu, *current_entry;
33:
34: #define YYDEBUG 0
35: #if YYDEBUG
36: #define YYERROR_VERBOSE
37: #endif
38: %}
39: %expect 30
40:
41: %union
42: {
43: char *string;
44: struct file *file;
45: struct symbol *symbol;
46: struct expr *expr;
47: struct menu *menu;
48: struct kconf_id *id;
49: }
50:
51: %token <id>T_MAINMENU
52: %token <id>T_MENU
53: %token <id>T_ENDMENU
54: %token <id>T_SOURCE
55: %token <id>T_CHOICE
56: %token <id>T_ENDCHOICE
57: %token <id>T_COMMENT
58: %token <id>T_CONFIG
59: %token <id>T_MENUCONFIG
60: %token <id>T_HELP
61: %token <string> T_HELPTEXT
62: %token <id>T_IF
63: %token <id>T_ENDIF
64: %token <id>T_DEPENDS
65: %token <id>T_OPTIONAL
66: %token <id>T_PROMPT
67: %token <id>T_TYPE
68: %token <id>T_DEFAULT
69: %token <id>T_SELECT
70: %token <id>T_RANGE
71: %token <id>T_VISIBLE
72: %token <id>T_OPTION
73: %token <id>T_ON
74: %token <string> T_WORD
75: %token <string> T_WORD_QUOTE
76: %token T_UNEQUAL
77: %token T_CLOSE_PAREN
78: %token T_OPEN_PAREN
79: %token T_EOL
80:
81: %left T_OR
82: %left T_AND
83: %left T_EQUAL T_UNEQUAL
84: %nonassoc T_NOT
85:
86: %type <string> prompt
87: %type <symbol> symbol
88: %type <expr> expr
89: %type <expr> if_expr
90: %type <id> end
91: %type <id> option_name
92: %type <menu> if_entry menu_entry choice_entry
93: %type <string> symbol_option_arg word_opt
94:
95: %destructor {
96: fprintf(stderr, "%s:%d: missing end statement for this entry\n",
97: $$->file->name, $$->lineno);
98: if (current_menu == $$)
99: menu_end_menu();
100: } if_entry menu_entry choice_entry
101:
102: %{
103: /* Include zconf.hash.c here so it can see the token constants. */
104: #include "zconf.hash.c"
105: %}
106:
107: %%
108: input: nl start | start;
109:
110: start: mainmenu_stmt stmt_list | stmt_list;
111:
112: stmt_list:
113: /* empty */
114: | stmt_list common_stmt
115: | stmt_list choice_stmt
116: | stmt_list menu_stmt
117: | stmt_list end { zconf_error("unexpected end statement"); }
118: | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
119: | stmt_list option_name error T_EOL
120: {
121: zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
122: }
123: | stmt_list error T_EOL { zconf_error("invalid statement"); }
124: ;
125:
126: option_name:
127: T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
128: ;
129:
130: common_stmt:
131: T_EOL
132: | if_stmt
133: | comment_stmt
134: | config_stmt
135: | menuconfig_stmt
136: | source_stmt
137: ;
138:
139: option_error:
140: T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
141: | error T_EOL { zconf_error("invalid option"); }
142: ;
143:
144:
145: /* config/menuconfig entry */
146:
147: config_entry_start: T_CONFIG T_WORD T_EOL
148: {
149: struct symbol *sym = sym_lookup($2, 0);
150: sym->flags |= SYMBOL_OPTIONAL;
151: menu_add_entry(sym);
152: printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
153: };
154:
155: config_stmt: config_entry_start config_option_list
156: {
157: menu_end_entry();
158: printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
159: };
160:
161: menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
162: {
163: struct symbol *sym = sym_lookup($2, 0);
164: sym->flags |= SYMBOL_OPTIONAL;
165: menu_add_entry(sym);
166: printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
167: };
168:
169: menuconfig_stmt: menuconfig_entry_start config_option_list
170: {
171: if (current_entry->prompt)
172: current_entry->prompt->type = P_MENU;
173: else
174: zconfprint("warning: menuconfig statement without prompt");
175: menu_end_entry();
176: printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
177: };
178:
179: config_option_list:
180: /* empty */
181: | config_option_list config_option
182: | config_option_list symbol_option
183: | config_option_list depends
184: | config_option_list help
185: | config_option_list option_error
186: | config_option_list T_EOL
187: ;
188:
189: config_option: T_TYPE prompt_stmt_opt T_EOL
190: {
191: menu_set_type($1->stype);
192: printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
193: zconf_curname(), zconf_lineno(),
194: $1->stype);
195: };
196:
197: config_option: T_PROMPT prompt if_expr T_EOL
198: {
199: menu_add_prompt(P_PROMPT, $2, $3);
200: printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
201: };
202:
203: config_option: T_DEFAULT expr if_expr T_EOL
204: {
205: menu_add_expr(P_DEFAULT, $2, $3);
206: if ($1->stype != S_UNKNOWN)
207: menu_set_type($1->stype);
208: printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
209: zconf_curname(), zconf_lineno(),
210: $1->stype);
211: };
212:
213: config_option: T_SELECT T_WORD if_expr T_EOL
214: {
215: menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
216: printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
217: };
218:
219: config_option: T_RANGE symbol symbol if_expr T_EOL
220: {
221: menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
222: printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
223: };
224:
225: symbol_option: T_OPTION symbol_option_list T_EOL
226: ;
227:
228: symbol_option_list:
229: /* empty */
230: | symbol_option_list T_WORD symbol_option_arg
231: {
232: struct kconf_id *id = kconf_id_lookup($2, strlen($2));
233: if (id && id->flags & TF_OPTION)
234: menu_add_option(id->token, $3);
235: else
236: zconfprint("warning: ignoring unknown option %s", $2);
237: free($2);
238: };
239:
240: symbol_option_arg:
241: /* empty */ { $$ = NULL; }
242: | T_EQUAL prompt { $$ = $2; }
243: ;
244:
245: /* choice entry */
246:
247: choice: T_CHOICE word_opt T_EOL
248: {
249: struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
250: sym->flags |= SYMBOL_AUTO;
251: menu_add_entry(sym);
252: menu_add_expr(P_CHOICE, NULL, NULL);
253: printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
254: };
255:
256: choice_entry: choice choice_option_list
257: {
258: $$ = menu_add_menu();
259: };
260:
261: choice_end: end
262: {
263: if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
264: menu_end_menu();
265: printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
266: }
267: };
268:
269: choice_stmt: choice_entry choice_block choice_end
270: ;
271:
272: choice_option_list:
273: /* empty */
274: | choice_option_list choice_option
275: | choice_option_list depends
276: | choice_option_list help
277: | choice_option_list T_EOL
278: | choice_option_list option_error
279: ;
280:
281: choice_option: T_PROMPT prompt if_expr T_EOL
282: {
283: menu_add_prompt(P_PROMPT, $2, $3);
284: printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
285: };
286:
287: choice_option: T_TYPE prompt_stmt_opt T_EOL
288: {
289: if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
290: menu_set_type($1->stype);
291: printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
292: zconf_curname(), zconf_lineno(),
293: $1->stype);
294: } else
295: YYERROR;
296: };
297:
298: choice_option: T_OPTIONAL T_EOL
299: {
300: current_entry->sym->flags |= SYMBOL_OPTIONAL;
301: printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
302: };
303:
304: choice_option: T_DEFAULT T_WORD if_expr T_EOL
305: {
306: if ($1->stype == S_UNKNOWN) {
307: menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
308: printd(DEBUG_PARSE, "%s:%d:default\n",
309: zconf_curname(), zconf_lineno());
310: } else
311: YYERROR;
312: };
313:
314: choice_block:
315: /* empty */
316: | choice_block common_stmt
317: ;
318:
319: /* if entry */
320:
321: if_entry: T_IF expr nl
322: {
323: printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
324: menu_add_entry(NULL);
325: menu_add_dep($2);
326: $$ = menu_add_menu();
327: };
328:
329: if_end: end
330: {
331: if (zconf_endtoken($1, T_IF, T_ENDIF)) {
332: menu_end_menu();
333: printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
334: }
335: };
336:
337: if_stmt: if_entry if_block if_end
338: ;
339:
340: if_block:
341: /* empty */
342: | if_block common_stmt
343: | if_block menu_stmt
344: | if_block choice_stmt
345: ;
346:
347: /* mainmenu entry */
348:
349: mainmenu_stmt: T_MAINMENU prompt nl
350: {
351: menu_add_prompt(P_MENU, $2, NULL);
352: };
353:
354: /* menu entry */
355:
356: menu: T_MENU prompt T_EOL
357: {
358: menu_add_entry(NULL);
359: menu_add_prompt(P_MENU, $2, NULL);
360: printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
361: };
362:
363: menu_entry: menu visibility_list depends_list
364: {
365: $$ = menu_add_menu();
366: };
367:
368: menu_end: end
369: {
370: if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
371: menu_end_menu();
372: printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
373: }
374: };
375:
376: menu_stmt: menu_entry menu_block menu_end
377: ;
378:
379: menu_block:
380: /* empty */
381: | menu_block common_stmt
382: | menu_block menu_stmt
383: | menu_block choice_stmt
384: ;
385:
386: source_stmt: T_SOURCE prompt T_EOL
387: {
388: printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
389: zconf_nextfile($2);
390: };
391:
392: /* comment entry */
393:
394: comment: T_COMMENT prompt T_EOL
395: {
396: menu_add_entry(NULL);
397: menu_add_prompt(P_COMMENT, $2, NULL);
398: printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
399: };
400:
401: comment_stmt: comment depends_list
402: {
403: menu_end_entry();
404: };
405:
406: /* help option */
407:
408: help_start: T_HELP T_EOL
409: {
410: printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
411: zconf_starthelp();
412: };
413:
414: help: help_start T_HELPTEXT
415: {
416: current_entry->help = $2;
417: };
418:
419: /* depends option */
420:
421: depends_list:
422: /* empty */
423: | depends_list depends
424: | depends_list T_EOL
425: | depends_list option_error
426: ;
427:
428: depends: T_DEPENDS T_ON expr T_EOL
429: {
430: menu_add_dep($3);
431: printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
432: };
433:
434: /* visibility option */
435:
436: visibility_list:
437: /* empty */
438: | visibility_list visible
439: | visibility_list T_EOL
440: ;
441:
442: visible: T_VISIBLE if_expr
443: {
444: menu_add_visibility($2);
445: };
446:
447: /* prompt statement */
448:
449: prompt_stmt_opt:
450: /* empty */
451: | prompt if_expr
452: {
453: menu_add_prompt(P_PROMPT, $1, $2);
454: };
455:
456: prompt: T_WORD
457: | T_WORD_QUOTE
458: ;
459:
460: end: T_ENDMENU T_EOL { $$ = $1; }
461: | T_ENDCHOICE T_EOL { $$ = $1; }
462: | T_ENDIF T_EOL { $$ = $1; }
463: ;
464:
465: nl:
466: T_EOL
467: | nl T_EOL
468: ;
469:
470: if_expr: /* empty */ { $$ = NULL; }
471: | T_IF expr { $$ = $2; }
472: ;
473:
474: expr: symbol { $$ = expr_alloc_symbol($1); }
475: | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
476: | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
477: | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
478: | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
479: | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
480: | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
481: ;
482:
483: symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
484: | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
485: ;
486:
487: word_opt: /* empty */ { $$ = NULL; }
488: | T_WORD
489:
490: %%
491:
492: void conf_parse(const char *name)
493: {
494: struct symbol *sym;
495: int i;
496:
497: zconf_initscan(name);
498:
499: sym_init();
500: _menu_init();
501: modules_sym = sym_lookup(NULL, 0);
502: modules_sym->type = S_BOOLEAN;
503: modules_sym->flags |= SYMBOL_AUTO;
504: rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
505:
506: #if YYDEBUG
507: if (getenv("ZCONF_DEBUG"))
508: zconfdebug = 1;
509: #endif
510: zconfparse();
511: if (zconfnerrs)
512: exit(1);
513: if (!modules_sym->prop) {
514: struct property *prop;
515:
516: prop = prop_alloc(P_DEFAULT, modules_sym);
517: prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));
518: }
519:
520: rootmenu.prompt->text = _(rootmenu.prompt->text);
521: rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
522:
523: menu_finalize(&rootmenu);
524: for_all_symbols(i, sym) {
525: if (sym_check_deps(sym))
526: zconfnerrs++;
527: }
528: if (zconfnerrs)
529: exit(1);
530: sym_set_change_count(1);
531: }
532:
533: static const char *zconf_tokenname(int token)
534: {
535: switch (token) {
536: case T_MENU: return "menu";
537: case T_ENDMENU: return "endmenu";
538: case T_CHOICE: return "choice";
539: case T_ENDCHOICE: return "endchoice";
540: case T_IF: return "if";
541: case T_ENDIF: return "endif";
542: case T_DEPENDS: return "depends";
543: case T_VISIBLE: return "visible";
544: }
545: return "<token>";
546: }
547:
548: static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
549: {
550: if (id->token != endtoken) {
551: zconf_error("unexpected '%s' within %s block",
552: kconf_id_strings + id->name, zconf_tokenname(starttoken));
553: zconfnerrs++;
554: return false;
555: }
556: if (current_menu->file != current_file) {
557: zconf_error("'%s' in different file than '%s'",
558: kconf_id_strings + id->name, zconf_tokenname(starttoken));
559: fprintf(stderr, "%s:%d: location of the '%s'\n",
560: current_menu->file->name, current_menu->lineno,
561: zconf_tokenname(starttoken));
562: zconfnerrs++;
563: return false;
564: }
565: return true;
566: }
567:
568: static void zconfprint(const char *err, ...)
569: {
570: va_list ap;
571:
572: fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
573: va_start(ap, err);
574: vfprintf(stderr, err, ap);
575: va_end(ap);
576: fprintf(stderr, "\n");
577: }
578:
579: static void zconf_error(const char *err, ...)
580: {
581: va_list ap;
582:
583: zconfnerrs++;
584: fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
585: va_start(ap, err);
586: vfprintf(stderr, err, ap);
587: va_end(ap);
588: fprintf(stderr, "\n");
589: }
590:
591: static void zconferror(const char *err)
592: {
593: #if YYDEBUG
594: fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
595: #endif
596: }
597:
598: static void print_quoted_string(FILE *out, const char *str)
599: {
600: const char *p;
601: int len;
602:
603: putc('"', out);
604: while ((p = strchr(str, '"'))) {
605: len = p - str;
606: if (len)
607: fprintf(out, "%.*s", len, str);
608: fputs("\\\"", out);
609: str = p + 1;
610: }
611: fputs(str, out);
612: putc('"', out);
613: }
614:
615: static void print_symbol(FILE *out, struct menu *menu)
616: {
617: struct symbol *sym = menu->sym;
618: struct property *prop;
619:
620: if (sym_is_choice(sym))
621: fprintf(out, "\nchoice\n");
622: else
623: fprintf(out, "\nconfig %s\n", sym->name);
624: switch (sym->type) {
625: case S_BOOLEAN:
626: fputs(" boolean\n", out);
627: break;
628: case S_TRISTATE:
629: fputs(" tristate\n", out);
630: break;
631: case S_STRING:
632: fputs(" string\n", out);
633: break;
634: case S_INT:
635: fputs(" integer\n", out);
636: break;
637: case S_HEX:
638: fputs(" hex\n", out);
639: break;
640: default:
641: fputs(" ???\n", out);
642: break;
643: }
644: for (prop = sym->prop; prop; prop = prop->next) {
645: if (prop->menu != menu)
646: continue;
647: switch (prop->type) {
648: case P_PROMPT:
649: fputs(" prompt ", out);
650: print_quoted_string(out, prop->text);
651: if (!expr_is_yes(prop->visible.expr)) {
652: fputs(" if ", out);
653: expr_fprint(prop->visible.expr, out);
654: }
655: fputc('\n', out);
656: break;
657: case P_DEFAULT:
658: fputs( " default ", out);
659: expr_fprint(prop->expr, out);
660: if (!expr_is_yes(prop->visible.expr)) {
661: fputs(" if ", out);
662: expr_fprint(prop->visible.expr, out);
663: }
664: fputc('\n', out);
665: break;
666: case P_CHOICE:
667: fputs(" #choice value\n", out);
668: break;
669: case P_SELECT:
670: fputs( " select ", out);
671: expr_fprint(prop->expr, out);
672: fputc('\n', out);
673: break;
674: case P_RANGE:
675: fputs( " range ", out);
676: expr_fprint(prop->expr, out);
677: fputc('\n', out);
678: break;
679: case P_MENU:
680: fputs( " menu ", out);
681: print_quoted_string(out, prop->text);
682: fputc('\n', out);
683: break;
684: default:
685: fprintf(out, " unknown prop %d!\n", prop->type);
686: break;
687: }
688: }
689: if (menu->help) {
690: int len = strlen(menu->help);
691: while (menu->help[--len] == '\n')
692: menu->help[len] = 0;
693: fprintf(out, " help\n%s\n", menu->help);
694: }
695: }
696:
697: void zconfdump(FILE *out)
698: {
699: struct property *prop;
700: struct symbol *sym;
701: struct menu *menu;
702:
703: menu = rootmenu.list;
704: while (menu) {
705: if ((sym = menu->sym))
706: print_symbol(out, menu);
707: else if ((prop = menu->prompt)) {
708: switch (prop->type) {
709: case P_COMMENT:
710: fputs("\ncomment ", out);
711: print_quoted_string(out, prop->text);
712: fputs("\n", out);
713: break;
714: case P_MENU:
715: fputs("\nmenu ", out);
716: print_quoted_string(out, prop->text);
717: fputs("\n", out);
718: break;
719: default:
720: ;
721: }
722: if (!expr_is_yes(prop->visible.expr)) {
723: fputs(" depends ", out);
724: expr_fprint(prop->visible.expr, out);
725: fputc('\n', out);
726: }
727: }
728:
729: if (menu->list)
730: menu = menu->list;
731: else if (menu->next)
732: menu = menu->next;
733: else while ((menu = menu->parent)) {
734: if (menu->prompt && menu->prompt->type == P_MENU)
735: fputs("\nendmenu\n", out);
736: if (menu->next) {
737: menu = menu->next;
738: break;
739: }
740: }
741: }
742: }
743:
744: #include "lex.zconf.c"
745: #include "util.c"
746: #include "confdata.c"
747: #include "expr.c"
748: #include "symbol.c"
749: #include "menu.c"
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