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1 | %{ /* deffilep.y - parser for .def files */ |
2 | ||
3 | /* Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include <stdio.h> | |
22 | #include <ctype.h> | |
23 | #include "libiberty.h" | |
24 | #include "bfd.h" | |
25 | #include "ld.h" | |
26 | #include "deffile.h" | |
27 | ||
28 | #define TRACE 0 | |
29 | ||
30 | /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc), | |
31 | as well as gratuitiously global symbol names, so we can have multiple | |
32 | yacc generated parsers in ld. Note that these are only the variables | |
33 | produced by yacc. If other parser generators (bison, byacc, etc) produce | |
34 | additional global names that conflict at link time, then those parser | |
35 | generators need to be fixed instead of adding those names to this list. */ | |
36 | ||
37 | #define yymaxdepth def_maxdepth | |
38 | #define yyparse def_parse | |
39 | #define yylex def_lex | |
40 | #define yyerror def_error | |
41 | #define yylval def_lval | |
42 | #define yychar def_char | |
43 | #define yydebug def_debug | |
44 | #define yypact def_pact | |
45 | #define yyr1 def_r1 | |
46 | #define yyr2 def_r2 | |
47 | #define yydef def_def | |
48 | #define yychk def_chk | |
49 | #define yypgo def_pgo | |
50 | #define yyact def_act | |
51 | #define yyexca def_exca | |
52 | #define yyerrflag def_errflag | |
53 | #define yynerrs def_nerrs | |
54 | #define yyps def_ps | |
55 | #define yypv def_pv | |
56 | #define yys def_s | |
57 | #define yy_yys def_yys | |
58 | #define yystate def_state | |
59 | #define yytmp def_tmp | |
60 | #define yyv def_v | |
61 | #define yy_yyv def_yyv | |
62 | #define yyval def_val | |
63 | #define yylloc def_lloc | |
64 | #define yyreds def_reds /* With YYDEBUG defined */ | |
65 | #define yytoks def_toks /* With YYDEBUG defined */ | |
66 | #define yylhs def_yylhs | |
67 | #define yylen def_yylen | |
68 | #define yydefred def_yydefred | |
69 | #define yydgoto def_yydgoto | |
70 | #define yysindex def_yysindex | |
71 | #define yyrindex def_yyrindex | |
72 | #define yygindex def_yygindex | |
73 | #define yytable def_yytable | |
74 | #define yycheck def_yycheck | |
75 | ||
76 | static int def_lex (); | |
77 | ||
78 | static void def_description PARAMS ((const char *)); | |
79 | static void def_exports PARAMS ((const char *, const char *, int, int)); | |
80 | static void def_heapsize PARAMS ((int, int)); | |
81 | static void def_import | |
82 | PARAMS ((const char *, const char *, const char *, const char *, int)); | |
83 | static void def_library PARAMS ((const char *, int)); | |
84 | static void def_name PARAMS ((const char *, int)); | |
85 | static void def_section PARAMS ((const char *, int)); | |
86 | static void def_section_alt PARAMS ((const char *, const char *)); | |
87 | static void def_stacksize PARAMS ((int, int)); | |
88 | static void def_version PARAMS ((int, int)); | |
89 | static void def_directive PARAMS ((char *)); | |
90 | static int def_parse PARAMS ((void)); | |
91 | static int def_error PARAMS ((const char *)); | |
92 | static int def_debug; | |
93 | static int def_lex PARAMS ((void)); | |
94 | ||
95 | static int lex_forced_token = 0; | |
96 | static const char *lex_parse_string = 0; | |
97 | static const char *lex_parse_string_end = 0; | |
98 | ||
99 | %} | |
100 | ||
101 | %union { | |
102 | char *id; | |
103 | int number; | |
104 | }; | |
105 | ||
106 | %token NAME, LIBRARY, DESCRIPTION, STACKSIZE, HEAPSIZE, CODE, DATA | |
107 | %token SECTIONS, EXPORTS, IMPORTS, VERSIONK, BASE, CONSTANT, PRIVATE | |
108 | %token READ WRITE EXECUTE SHARED NONAME DIRECTIVE | |
109 | %token <id> ID | |
110 | %token <number> NUMBER | |
111 | %type <number> opt_base opt_ordinal | |
112 | %type <number> attr attr_list opt_number exp_opt_list exp_opt | |
113 | %type <id> opt_name opt_equal_name | |
114 | ||
115 | %% | |
116 | ||
117 | start: start command | |
118 | | command | |
119 | ; | |
120 | ||
121 | command: | |
122 | NAME opt_name opt_base { def_name ($2, $3); } | |
123 | | LIBRARY opt_name opt_base { def_library ($2, $3); } | |
124 | | DESCRIPTION ID { def_description ($2);} | |
125 | | STACKSIZE NUMBER opt_number { def_stacksize ($2, $3);} | |
126 | | HEAPSIZE NUMBER opt_number { def_heapsize ($2, $3);} | |
127 | | CODE attr_list { def_section ("CODE", $2);} | |
128 | | DATA attr_list { def_section ("DATA", $2);} | |
129 | | SECTIONS seclist | |
130 | | EXPORTS explist | |
131 | | IMPORTS implist | |
132 | | VERSIONK NUMBER { def_version ($2, 0);} | |
133 | | VERSIONK NUMBER '.' NUMBER { def_version ($2, $4);} | |
134 | | DIRECTIVE ID { def_directive ($2);} | |
135 | ; | |
136 | ||
137 | ||
138 | explist: | |
139 | /* EMPTY */ | |
140 | | expline | |
141 | | explist expline | |
142 | ; | |
143 | ||
144 | expline: | |
145 | ID opt_equal_name opt_ordinal exp_opt_list | |
146 | { def_exports ($1, $2, $3, $4); } | |
147 | ; | |
148 | exp_opt_list: | |
149 | exp_opt exp_opt_list { $$ = $1 | $2; } | |
150 | | { $$ = 0; } | |
151 | ; | |
152 | exp_opt: | |
153 | NONAME { $$ = 1; } | |
154 | | CONSTANT { $$ = 2; } | |
155 | | DATA { $$ = 4; } | |
156 | | PRIVATE { $$ = 8; } | |
157 | ; | |
158 | implist: | |
159 | implist impline | |
160 | | impline | |
161 | ; | |
162 | ||
163 | impline: | |
164 | ID '=' ID '.' ID '.' ID { def_import ($1, $3, $5, $7, -1); } | |
165 | | ID '=' ID '.' ID '.' NUMBER { def_import ($1, $3, $5, 0, $7); } | |
166 | | ID '=' ID '.' ID { def_import ($1, $3, 0, $5, -1); } | |
167 | | ID '=' ID '.' NUMBER { def_import ($1, $3, 0, 0, $5); } | |
168 | | ID '.' ID '.' ID { def_import ( 0, $1, $3, $5, -1); } | |
169 | | ID '.' ID { def_import ( 0, $1, 0, $3, -1); } | |
170 | ; | |
171 | ||
172 | seclist: | |
173 | seclist secline | |
174 | | secline | |
175 | ; | |
176 | ||
177 | secline: | |
178 | ID attr_list { def_section ($1, $2);} | |
179 | | ID ID { def_section_alt ($1, $2);} | |
180 | ; | |
181 | ||
182 | attr_list: | |
183 | attr_list opt_comma attr { $$ = $1 | $3; } | |
184 | | attr { $$ = $1; } | |
185 | ; | |
186 | ||
187 | opt_comma: | |
188 | ',' | |
189 | | | |
190 | ; | |
191 | opt_number: ',' NUMBER { $$=$2;} | |
192 | | { $$=-1;} | |
193 | ; | |
194 | ||
195 | attr: | |
196 | READ { $$ = 1;} | |
197 | | WRITE { $$ = 2;} | |
198 | | EXECUTE { $$=4;} | |
199 | | SHARED { $$=8;} | |
200 | ; | |
201 | ||
202 | opt_name: ID { $$ = $1; } | |
203 | | { $$ = 0; } | |
204 | ; | |
205 | ||
206 | opt_ordinal: | |
207 | '@' NUMBER { $$ = $2;} | |
208 | | { $$ = -1;} | |
209 | ; | |
210 | ||
211 | opt_equal_name: | |
212 | '=' ID { $$ = $2; } | |
213 | | { $$ = 0; } | |
214 | ; | |
215 | ||
216 | opt_base: BASE '=' NUMBER { $$ = $3;} | |
217 | | { $$ = 0;} | |
218 | ; | |
219 | ||
220 | ||
221 | ||
222 | %% | |
223 | ||
224 | /***************************************************************************** | |
225 | API | |
226 | *****************************************************************************/ | |
227 | ||
228 | static FILE *the_file; | |
229 | static const char *def_filename; | |
230 | static int linenumber; | |
231 | static def_file *def; | |
232 | static int max_exports, max_imports, max_sections; | |
233 | static int saw_newline; | |
234 | ||
235 | struct directive | |
236 | { | |
237 | struct directive *next; | |
238 | char *name; | |
239 | int len; | |
240 | }; | |
241 | ||
242 | static struct directive *directives = 0; | |
243 | ||
244 | def_file * | |
245 | def_file_empty () | |
246 | { | |
247 | def_file *rv = (def_file *) xmalloc (sizeof (def_file)); | |
248 | memset (rv, 0, sizeof (def_file)); | |
249 | max_exports = max_imports = max_sections = 0; | |
250 | rv->is_dll = -1; | |
251 | rv->base_address = (bfd_vma) (-1); | |
252 | rv->stack_reserve = rv->stack_commit = -1; | |
253 | rv->heap_reserve = rv->heap_commit = -1; | |
254 | rv->version_major = rv->version_minor = -1; | |
255 | return rv; | |
256 | } | |
257 | ||
258 | def_file * | |
259 | def_file_parse (filename, add_to) | |
260 | const char *filename; | |
261 | def_file *add_to; | |
262 | { | |
263 | struct directive *d; | |
264 | ||
265 | the_file = fopen (filename, "r"); | |
266 | def_filename = filename; | |
267 | linenumber = 1; | |
268 | if (!the_file) | |
269 | { | |
270 | perror (filename); | |
271 | return 0; | |
272 | } | |
273 | if (add_to) | |
274 | { | |
275 | def = add_to; | |
276 | max_exports = def->num_exports; | |
277 | max_imports = def->num_imports; | |
278 | max_sections = def->num_section_defs; | |
279 | } | |
280 | else | |
281 | { | |
282 | def = def_file_empty (); | |
283 | } | |
284 | ||
285 | saw_newline = 1; | |
286 | if (def_parse ()) | |
287 | { | |
288 | def_file_free (def); | |
289 | fclose (the_file); | |
290 | return 0; | |
291 | } | |
292 | ||
293 | fclose (the_file); | |
294 | ||
295 | for (d = directives; d; d = d->next) | |
296 | { | |
297 | #if TRACE | |
298 | printf ("Adding directive `%s'\n", d->name); | |
299 | #endif | |
300 | def_file_add_directive (def, d->name, d->len); | |
301 | } | |
302 | ||
303 | return def; | |
304 | } | |
305 | ||
306 | void | |
307 | def_file_free (def) | |
308 | def_file *def; | |
309 | { | |
310 | int i; | |
311 | if (!def) | |
312 | return; | |
313 | if (def->name) | |
314 | free (def->name); | |
315 | if (def->description) | |
316 | free (def->description); | |
317 | ||
318 | if (def->section_defs) | |
319 | { | |
320 | for (i = 0; i < def->num_section_defs; i++) | |
321 | { | |
322 | if (def->section_defs[i].name) | |
323 | free (def->section_defs[i].name); | |
324 | if (def->section_defs[i].class) | |
325 | free (def->section_defs[i].class); | |
326 | } | |
327 | free (def->section_defs); | |
328 | } | |
329 | ||
330 | if (def->exports) | |
331 | { | |
332 | for (i = 0; i < def->num_exports; i++) | |
333 | { | |
334 | if (def->exports[i].internal_name | |
335 | && def->exports[i].internal_name != def->exports[i].name) | |
336 | free (def->exports[i].internal_name); | |
337 | if (def->exports[i].name) | |
338 | free (def->exports[i].name); | |
339 | } | |
340 | free (def->exports); | |
341 | } | |
342 | ||
343 | if (def->imports) | |
344 | { | |
345 | for (i = 0; i < def->num_imports; i++) | |
346 | { | |
347 | if (def->imports[i].internal_name | |
348 | && def->imports[i].internal_name != def->imports[i].name) | |
349 | free (def->imports[i].internal_name); | |
350 | if (def->imports[i].name) | |
351 | free (def->imports[i].name); | |
352 | if (def->imports[i].module) | |
353 | free (def->imports[i].module); | |
354 | } | |
355 | free (def->imports); | |
356 | } | |
357 | ||
358 | free (def); | |
359 | } | |
360 | ||
361 | #ifdef DEF_FILE_PRINT | |
362 | void | |
363 | def_file_print (file, def) | |
364 | FILE *file; | |
365 | def_file *def; | |
366 | { | |
367 | int i; | |
368 | fprintf (file, ">>>> def_file at 0x%08x\n", def); | |
369 | if (def->name) | |
370 | fprintf (file, " name: %s\n", def->name ? def->name : "(unspecified)"); | |
371 | if (def->is_dll != -1) | |
372 | fprintf (file, " is dll: %s\n", def->is_dll ? "yes" : "no"); | |
373 | if (def->base_address != (bfd_vma) (-1)) | |
374 | fprintf (file, " base address: 0x%08x\n", def->base_address); | |
375 | if (def->description) | |
376 | fprintf (file, " description: `%s'\n", def->description); | |
377 | if (def->stack_reserve != -1) | |
378 | fprintf (file, " stack reserve: 0x%08x\n", def->stack_reserve); | |
379 | if (def->stack_commit != -1) | |
380 | fprintf (file, " stack commit: 0x%08x\n", def->stack_commit); | |
381 | if (def->heap_reserve != -1) | |
382 | fprintf (file, " heap reserve: 0x%08x\n", def->heap_reserve); | |
383 | if (def->heap_commit != -1) | |
384 | fprintf (file, " heap commit: 0x%08x\n", def->heap_commit); | |
385 | ||
386 | if (def->num_section_defs > 0) | |
387 | { | |
388 | fprintf (file, " section defs:\n"); | |
389 | for (i = 0; i < def->num_section_defs; i++) | |
390 | { | |
391 | fprintf (file, " name: `%s', class: `%s', flags:", | |
392 | def->section_defs[i].name, def->section_defs[i].class); | |
393 | if (def->section_defs[i].flag_read) | |
394 | fprintf (file, " R"); | |
395 | if (def->section_defs[i].flag_write) | |
396 | fprintf (file, " W"); | |
397 | if (def->section_defs[i].flag_execute) | |
398 | fprintf (file, " X"); | |
399 | if (def->section_defs[i].flag_shared) | |
400 | fprintf (file, " S"); | |
401 | fprintf (file, "\n"); | |
402 | } | |
403 | } | |
404 | ||
405 | if (def->num_exports > 0) | |
406 | { | |
407 | fprintf (file, " exports:\n"); | |
408 | for (i = 0; i < def->num_exports; i++) | |
409 | { | |
410 | fprintf (file, " name: `%s', int: `%s', ordinal: %d, flags:", | |
411 | def->exports[i].name, def->exports[i].internal_name, | |
412 | def->exports[i].ordinal); | |
413 | if (def->exports[i].flag_private) | |
414 | fprintf (file, " P"); | |
415 | if (def->exports[i].flag_constant) | |
416 | fprintf (file, " C"); | |
417 | if (def->exports[i].flag_noname) | |
418 | fprintf (file, " N"); | |
419 | if (def->exports[i].flag_data) | |
420 | fprintf (file, " D"); | |
421 | fprintf (file, "\n"); | |
422 | } | |
423 | } | |
424 | ||
425 | if (def->num_imports > 0) | |
426 | { | |
427 | fprintf (file, " imports:\n"); | |
428 | for (i = 0; i < def->num_imports; i++) | |
429 | { | |
430 | fprintf (file, " int: %s, from: `%s', name: `%s', ordinal: %d\n", | |
431 | def->imports[i].internal_name, | |
432 | def->imports[i].module, | |
433 | def->imports[i].name, | |
434 | def->imports[i].ordinal); | |
435 | } | |
436 | } | |
437 | if (def->version_major != -1) | |
438 | fprintf (file, " version: %d.%d\n", def->version_major, def->version_minor); | |
439 | fprintf (file, "<<<< def_file at 0x%08x\n", def); | |
440 | } | |
441 | #endif | |
442 | ||
443 | def_file_export * | |
444 | def_file_add_export (def, external_name, internal_name, ordinal) | |
445 | def_file *def; | |
446 | const char *external_name; | |
447 | const char *internal_name; | |
448 | int ordinal; | |
449 | { | |
450 | def_file_export *e; | |
451 | if (def->num_exports >= max_exports) | |
452 | { | |
453 | max_exports = def->num_exports + 50; | |
454 | if (def->exports) | |
455 | def->exports = (def_file_export *) xrealloc (def->exports, max_exports * sizeof (def_file_export)); | |
456 | else | |
457 | def->exports = (def_file_export *) xmalloc (max_exports * sizeof (def_file_export)); | |
458 | } | |
459 | e = def->exports + def->num_exports; | |
460 | memset (e, 0, sizeof (def_file_export)); | |
461 | if (internal_name && !external_name) | |
462 | external_name = internal_name; | |
463 | if (external_name && !internal_name) | |
464 | internal_name = external_name; | |
465 | e->name = xstrdup (external_name); | |
466 | e->internal_name = xstrdup (internal_name); | |
467 | e->ordinal = ordinal; | |
468 | def->num_exports++; | |
469 | return e; | |
470 | } | |
471 | ||
472 | def_file_import * | |
473 | def_file_add_import (def, name, module, ordinal, internal_name) | |
474 | def_file *def; | |
475 | const char *name; | |
476 | const char *module; | |
477 | int ordinal; | |
478 | const char *internal_name; | |
479 | { | |
480 | def_file_import *i; | |
481 | if (def->num_imports >= max_imports) | |
482 | { | |
483 | max_imports = def->num_imports + 50; | |
484 | if (def->imports) | |
485 | def->imports = (def_file_import *) xrealloc (def->imports, max_imports * sizeof (def_file_import)); | |
486 | else | |
487 | def->imports = (def_file_import *) xmalloc (max_imports * sizeof (def_file_import)); | |
488 | } | |
489 | i = def->imports + def->num_imports; | |
490 | memset (i, 0, sizeof (def_file_import)); | |
491 | if (name) | |
492 | i->name = xstrdup (name); | |
493 | if (module) | |
494 | i->module = xstrdup (module); | |
495 | i->ordinal = ordinal; | |
496 | if (internal_name) | |
497 | i->internal_name = xstrdup (internal_name); | |
498 | else | |
499 | i->internal_name = i->name; | |
500 | def->num_imports++; | |
501 | return i; | |
502 | } | |
503 | ||
504 | struct | |
505 | { | |
506 | char *param; | |
507 | int token; | |
508 | } | |
509 | diropts[] = | |
510 | { | |
511 | { "-heap", HEAPSIZE }, | |
512 | { "-stack", STACKSIZE }, | |
513 | { "-attr", SECTIONS }, | |
514 | { "-export", EXPORTS }, | |
515 | { 0, 0 } | |
516 | }; | |
517 | ||
518 | int | |
519 | def_file_add_directive (my_def, param, len) | |
520 | def_file *my_def; | |
521 | const char *param; | |
522 | int len; | |
523 | { | |
524 | def_file *save_def = def; | |
525 | const char *pend = param + len; | |
526 | const char *tend = param; | |
527 | unsigned int sh_reserve, sh_commit; | |
528 | int i, j; | |
529 | ||
530 | def = my_def; | |
531 | ||
532 | while (param < pend) | |
533 | { | |
534 | while (param < pend && isspace (*param)) | |
535 | param++; | |
536 | for (tend = param + 1; | |
537 | tend < pend && !(isspace (tend[-1]) && *tend == '-'); | |
538 | tend++); | |
539 | ||
540 | for (i = 0; diropts[i].param; i++) | |
541 | { | |
542 | int len = strlen (diropts[i].param); | |
543 | if (tend - param >= len | |
544 | && strncmp (param, diropts[i].param, len) == 0 | |
545 | && (param[len] == ':' || param[len] == ' ')) | |
546 | { | |
547 | lex_parse_string_end = tend; | |
548 | lex_parse_string = param + len + 1; | |
549 | lex_forced_token = diropts[i].token; | |
550 | saw_newline = 0; | |
551 | def_parse (); | |
552 | break; | |
553 | } | |
554 | } | |
555 | ||
556 | if (!diropts[i].param) | |
557 | { | |
558 | /* xgettext:c-format */ | |
559 | einfo (_("Warning: .drectve `%.*s' unrecognized\n"), | |
560 | tend - param, param); | |
561 | } | |
562 | lex_parse_string = 0; | |
563 | param = tend; | |
564 | } | |
565 | ||
566 | def = save_def; | |
567 | } | |
568 | ||
569 | /***************************************************************************** | |
570 | Parser Callbacks | |
571 | *****************************************************************************/ | |
572 | ||
573 | static void | |
574 | def_name (name, base) | |
575 | const char *name; | |
576 | int base; | |
577 | { | |
578 | if (def->name) | |
579 | free (def->name); | |
580 | def->name = xstrdup (name); | |
581 | def->base_address = base; | |
582 | def->is_dll = 0; | |
583 | } | |
584 | ||
585 | static void | |
586 | def_library (name, base) | |
587 | const char *name; | |
588 | int base; | |
589 | { | |
590 | if (def->name) | |
591 | free (def->name); | |
592 | def->name = xstrdup (name); | |
593 | def->base_address = base; | |
594 | def->is_dll = 1; | |
595 | } | |
596 | ||
597 | static void | |
598 | def_description (text) | |
599 | const char *text; | |
600 | { | |
601 | int len = def->description ? strlen (def->description) : 0; | |
602 | len += strlen (text) + 1; | |
603 | if (def->description) | |
604 | { | |
605 | def->description = (char *) xrealloc (def->description, len); | |
606 | strcat (def->description, text); | |
607 | } | |
608 | else | |
609 | { | |
610 | def->description = (char *) xmalloc (len); | |
611 | strcpy (def->description, text); | |
612 | } | |
613 | } | |
614 | ||
615 | static void | |
616 | def_stacksize (reserve, commit) | |
617 | int reserve; | |
618 | int commit; | |
619 | { | |
620 | def->stack_reserve = reserve; | |
621 | def->stack_commit = commit; | |
622 | } | |
623 | ||
624 | static void | |
625 | def_heapsize (reserve, commit) | |
626 | int reserve; | |
627 | int commit; | |
628 | { | |
629 | def->heap_reserve = reserve; | |
630 | def->heap_commit = commit; | |
631 | } | |
632 | ||
633 | static void | |
634 | def_section (name, attr) | |
635 | const char *name; | |
636 | int attr; | |
637 | { | |
638 | def_file_section *s; | |
639 | if (def->num_section_defs >= max_sections) | |
640 | { | |
641 | max_sections = def->num_section_defs + 50; | |
642 | if (def->section_defs) | |
643 | def->section_defs = (def_file_section *) xrealloc (def->section_defs, max_sections * sizeof (def_file_import)); | |
644 | else | |
645 | def->section_defs = (def_file_section *) xmalloc (max_sections * sizeof (def_file_import)); | |
646 | } | |
647 | s = def->section_defs + def->num_section_defs; | |
648 | memset (s, 0, sizeof (def_file_section)); | |
649 | s->name = xstrdup (name); | |
650 | if (attr & 1) | |
651 | s->flag_read = 1; | |
652 | if (attr & 2) | |
653 | s->flag_write = 1; | |
654 | if (attr & 4) | |
655 | s->flag_execute = 1; | |
656 | if (attr & 8) | |
657 | s->flag_shared = 1; | |
658 | ||
659 | def->num_section_defs++; | |
660 | } | |
661 | ||
662 | static void | |
663 | def_section_alt (name, attr) | |
664 | const char *name; | |
665 | const char *attr; | |
666 | { | |
667 | int aval = 0; | |
668 | for (; *attr; attr++) | |
669 | { | |
670 | switch (*attr) | |
671 | { | |
672 | case 'R': | |
673 | case 'r': | |
674 | aval |= 1; | |
675 | break; | |
676 | case 'W': | |
677 | case 'w': | |
678 | aval |= 2; | |
679 | break; | |
680 | case 'X': | |
681 | case 'x': | |
682 | aval |= 4; | |
683 | break; | |
684 | case 'S': | |
685 | case 's': | |
686 | aval |= 8; | |
687 | break; | |
688 | } | |
689 | } | |
690 | def_section (name, aval); | |
691 | } | |
692 | ||
693 | static void | |
694 | def_exports (external_name, internal_name, ordinal, flags) | |
695 | const char *external_name; | |
696 | const char *internal_name; | |
697 | int ordinal; | |
698 | int flags; | |
699 | { | |
700 | def_file_export *dfe; | |
701 | ||
702 | if (!internal_name && external_name) | |
703 | internal_name = external_name; | |
704 | #if TRACE | |
705 | printf ("def_exports, ext=%s int=%s\n", external_name, internal_name); | |
706 | #endif | |
707 | ||
708 | dfe = def_file_add_export (def, external_name, internal_name, ordinal); | |
709 | if (flags & 1) | |
710 | dfe->flag_noname = 1; | |
711 | if (flags & 2) | |
712 | dfe->flag_constant = 1; | |
713 | if (flags & 4) | |
714 | dfe->flag_data = 1; | |
715 | if (flags & 8) | |
716 | dfe->flag_private = 1; | |
717 | } | |
718 | ||
719 | static void | |
720 | def_import (internal_name, module, dllext, name, ordinal) | |
721 | const char *internal_name; | |
722 | const char *module; | |
723 | const char *dllext; | |
724 | const char *name; | |
725 | int ordinal; | |
726 | { | |
727 | char *buf = 0; | |
728 | ||
729 | if (dllext != NULL) | |
730 | { | |
731 | buf = (char *) xmalloc (strlen (module) + strlen (dllext) + 2); | |
732 | sprintf (buf, "%s.%s", module, dllext); | |
733 | module = buf; | |
734 | } | |
735 | ||
736 | def_file_add_import (def, name, module, ordinal, internal_name); | |
737 | if (buf) | |
738 | free (buf); | |
739 | } | |
740 | ||
741 | static void | |
742 | def_version (major, minor) | |
743 | int major; | |
744 | int minor; | |
745 | { | |
746 | def->version_major = major; | |
747 | def->version_minor = minor; | |
748 | } | |
749 | ||
750 | static void | |
751 | def_directive (str) | |
752 | char *str; | |
753 | { | |
754 | struct directive *d = (struct directive *) xmalloc (sizeof (struct directive)); | |
755 | d->next = directives; | |
756 | directives = d; | |
757 | d->name = xstrdup (str); | |
758 | d->len = strlen (str); | |
759 | } | |
760 | ||
761 | static int | |
762 | def_error (err) | |
763 | const char *err; | |
764 | { | |
765 | einfo ("%P: %s:%d: %s\n", def_filename, linenumber, err); | |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
770 | ||
771 | /***************************************************************************** | |
772 | Lexical Scanner | |
773 | *****************************************************************************/ | |
774 | ||
775 | #undef TRACE | |
776 | #define TRACE 0 | |
777 | ||
778 | /* Never freed, but always reused as needed, so no real leak */ | |
779 | static char *buffer = 0; | |
780 | static int buflen = 0; | |
781 | static int bufptr = 0; | |
782 | ||
783 | static void | |
784 | put_buf (c) | |
785 | char c; | |
786 | { | |
787 | if (bufptr == buflen) | |
788 | { | |
789 | buflen += 50; /* overly reasonable, eh? */ | |
790 | if (buffer) | |
791 | buffer = (char *) xrealloc (buffer, buflen + 1); | |
792 | else | |
793 | buffer = (char *) xmalloc (buflen + 1); | |
794 | } | |
795 | buffer[bufptr++] = c; | |
796 | buffer[bufptr] = 0; /* not optimal, but very convenient */ | |
797 | } | |
798 | ||
799 | static struct | |
800 | { | |
801 | char *name; | |
802 | int token; | |
803 | } | |
804 | tokens[] = | |
805 | { | |
806 | { "BASE", BASE }, | |
807 | { "CODE", CODE }, | |
808 | { "CONSTANT", CONSTANT }, | |
809 | { "DATA", DATA }, | |
810 | { "DESCRIPTION", DESCRIPTION }, | |
811 | { "DIRECTIVE", DIRECTIVE }, | |
812 | { "EXECUTE", EXECUTE }, | |
813 | { "EXPORTS", EXPORTS }, | |
814 | { "HEAPSIZE", HEAPSIZE }, | |
815 | { "IMPORTS", IMPORTS }, | |
816 | { "LIBRARY", LIBRARY }, | |
817 | { "NAME", NAME }, | |
818 | { "NONAME", NONAME }, | |
819 | { "PRIVATE", PRIVATE }, | |
820 | { "READ", READ }, | |
821 | { "SECTIONS", SECTIONS }, | |
822 | { "SEGMENTS", SECTIONS }, | |
823 | { "SHARED", SHARED }, | |
824 | { "STACKSIZE", STACKSIZE }, | |
825 | { "VERSION", VERSIONK }, | |
826 | { "WRITE", WRITE }, | |
827 | { 0, 0 } | |
828 | }; | |
829 | ||
830 | static int | |
831 | def_getc () | |
832 | { | |
833 | int rv; | |
834 | if (lex_parse_string) | |
835 | { | |
836 | if (lex_parse_string >= lex_parse_string_end) | |
837 | rv = EOF; | |
838 | else | |
839 | rv = *lex_parse_string++; | |
840 | } | |
841 | else | |
842 | { | |
843 | rv = fgetc (the_file); | |
844 | } | |
845 | if (rv == '\n') | |
846 | saw_newline = 1; | |
847 | return rv; | |
848 | } | |
849 | ||
850 | static int | |
851 | def_ungetc (c) | |
852 | int c; | |
853 | { | |
854 | if (lex_parse_string) | |
855 | lex_parse_string--; | |
856 | else | |
857 | return ungetc (c, the_file); | |
858 | } | |
859 | ||
860 | static int | |
861 | def_lex () | |
862 | { | |
863 | int c, i, q; | |
864 | ||
865 | if (lex_forced_token) | |
866 | { | |
867 | i = lex_forced_token; | |
868 | lex_forced_token = 0; | |
869 | #if TRACE | |
870 | printf ("lex: forcing token %d\n", i); | |
871 | #endif | |
872 | return i; | |
873 | } | |
874 | ||
875 | c = def_getc (); | |
876 | ||
877 | /* trim leading whitespace */ | |
878 | while (c != EOF && (c == ' ' || c == '\t') && saw_newline) | |
879 | c = def_getc (); | |
880 | ||
881 | if (c == EOF) | |
882 | { | |
883 | #if TRACE | |
884 | printf ("lex: EOF\n"); | |
885 | #endif | |
886 | return 0; | |
887 | } | |
888 | ||
889 | if (saw_newline && c == ';') | |
890 | { | |
891 | do | |
892 | { | |
893 | c = def_getc (); | |
894 | } | |
895 | while (c != EOF && c != '\n'); | |
896 | if (c == '\n') | |
897 | return def_lex (); | |
898 | return 0; | |
899 | } | |
900 | /* must be something else */ | |
901 | saw_newline = 0; | |
902 | ||
903 | if (isdigit (c)) | |
904 | { | |
905 | bufptr = 0; | |
906 | while (c != EOF && isxdigit (c) || (c == 'x')) | |
907 | { | |
908 | put_buf (c); | |
909 | c = def_getc (); | |
910 | } | |
911 | if (c != EOF) | |
912 | def_ungetc (c); | |
913 | yylval.number = strtoul (buffer, 0, 0); | |
914 | #if TRACE | |
915 | printf ("lex: `%s' returns NUMBER %d\n", buffer, yylval.number); | |
916 | #endif | |
917 | return NUMBER; | |
918 | } | |
919 | ||
920 | if (isalpha (c) || strchr ("$:-_?", c)) | |
921 | { | |
922 | bufptr = 0; | |
923 | while (c != EOF && isalnum (c) || strchr ("$:-_?/@", c)) | |
924 | { | |
925 | put_buf (c); | |
926 | c = def_getc (); | |
927 | } | |
928 | if (c != EOF) | |
929 | def_ungetc (c); | |
930 | for (i = 0; tokens[i].name; i++) | |
931 | if (strcmp (tokens[i].name, buffer) == 0) | |
932 | { | |
933 | #if TRACE | |
934 | printf ("lex: `%s' is a string token\n", buffer); | |
935 | #endif | |
936 | return tokens[i].token; | |
937 | } | |
938 | #if TRACE | |
939 | printf ("lex: `%s' returns ID\n", buffer); | |
940 | #endif | |
941 | yylval.id = xstrdup (buffer); | |
942 | return ID; | |
943 | } | |
944 | ||
945 | if (c == '\'' || c == '"') | |
946 | { | |
947 | q = c; | |
948 | c = def_getc (); | |
949 | bufptr = 0; | |
950 | while (c != EOF && c != q) | |
951 | { | |
952 | put_buf (c); | |
953 | c = def_getc (); | |
954 | } | |
955 | yylval.id = xstrdup (buffer); | |
956 | #if TRACE | |
957 | printf ("lex: `%s' returns ID\n", buffer); | |
958 | #endif | |
959 | return ID; | |
960 | } | |
961 | ||
962 | if (c == '=' || c == '.' || c == '@' || c == ',') | |
963 | { | |
964 | #if TRACE | |
965 | printf ("lex: `%c' returns itself\n", c); | |
966 | #endif | |
967 | return c; | |
968 | } | |
969 | ||
970 | if (c == '\n') | |
971 | { | |
972 | linenumber++; | |
973 | saw_newline = 1; | |
974 | } | |
975 | ||
976 | /*printf ("lex: 0x%02x ignored\n", c); */ | |
977 | return def_lex (); | |
978 | } |