projects / deliverable / binutils-gdb.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
* ld.texinfo (Options): Fix example for --wrap.
[deliverable/binutils-gdb.git] / ld / deffilep.y
... / ...
CommitLineData
1%{ /* deffilep.y - parser for .def files */
2
3/* Copyright 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 Free Software Foundation, Inc.
5
6 This file is part of GNU Binutils.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22#include <stdio.h>
23#include "libiberty.h"
24#include "safe-ctype.h"
25#include "bfd.h"
26#include "sysdep.h"
27#include "ld.h"
28#include "ldmisc.h"
29#include "deffile.h"
30
31#define TRACE 0
32
33#define ROUND_UP(a, b) (((a)+((b)-1))&~((b)-1))
34
35/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
36 as well as gratuitiously global symbol names, so we can have multiple
37 yacc generated parsers in ld. Note that these are only the variables
38 produced by yacc. If other parser generators (bison, byacc, etc) produce
39 additional global names that conflict at link time, then those parser
40 generators need to be fixed instead of adding those names to this list. */
41
42#define yymaxdepth def_maxdepth
43#define yyparse def_parse
44#define yylex def_lex
45#define yyerror def_error
46#define yylval def_lval
47#define yychar def_char
48#define yydebug def_debug
49#define yypact def_pact
50#define yyr1 def_r1
51#define yyr2 def_r2
52#define yydef def_def
53#define yychk def_chk
54#define yypgo def_pgo
55#define yyact def_act
56#define yyexca def_exca
57#define yyerrflag def_errflag
58#define yynerrs def_nerrs
59#define yyps def_ps
60#define yypv def_pv
61#define yys def_s
62#define yy_yys def_yys
63#define yystate def_state
64#define yytmp def_tmp
65#define yyv def_v
66#define yy_yyv def_yyv
67#define yyval def_val
68#define yylloc def_lloc
69#define yyreds def_reds /* With YYDEBUG defined. */
70#define yytoks def_toks /* With YYDEBUG defined. */
71#define yylhs def_yylhs
72#define yylen def_yylen
73#define yydefred def_yydefred
74#define yydgoto def_yydgoto
75#define yysindex def_yysindex
76#define yyrindex def_yyrindex
77#define yygindex def_yygindex
78#define yytable def_yytable
79#define yycheck def_yycheck
80
81static void def_description (const char *);
82static void def_exports (const char *, const char *, int, int);
83static void def_heapsize (int, int);
84static void def_import (const char *, const char *, const char *, const char *,
85 int);
86static void def_library (const char *, int);
87static void def_name (const char *, int);
88static void def_section (const char *, int);
89static void def_section_alt (const char *, const char *);
90static void def_stacksize (int, int);
91static void def_version (int, int);
92static void def_directive (char *);
93static int def_parse (void);
94static int def_error (const char *);
95static int def_lex (void);
96
97static int lex_forced_token = 0;
98static const char *lex_parse_string = 0;
99static const char *lex_parse_string_end = 0;
100
101%}
102
103%union {
104 char *id;
105 int number;
106};
107
108%token NAME LIBRARY DESCRIPTION STACKSIZE HEAPSIZE CODE DATAU DATAL
109%token SECTIONS EXPORTS IMPORTS VERSIONK BASE CONSTANTU CONSTANTL
110%token PRIVATEU PRIVATEL
111%token READ WRITE EXECUTE SHARED NONAMEU NONAMEL DIRECTIVE
112%token <id> ID
113%token <number> NUMBER
114%type <number> opt_base opt_ordinal
115%type <number> attr attr_list opt_number exp_opt_list exp_opt
116%type <id> opt_name opt_equal_name dot_name
117
118%%
119
120start: start command
121 | command
122 ;
123
124command:
125 NAME opt_name opt_base { def_name ($2, $3); }
126 | LIBRARY opt_name opt_base { def_library ($2, $3); }
127 | DESCRIPTION ID { def_description ($2);}
128 | STACKSIZE NUMBER opt_number { def_stacksize ($2, $3);}
129 | HEAPSIZE NUMBER opt_number { def_heapsize ($2, $3);}
130 | CODE attr_list { def_section ("CODE", $2);}
131 | DATAU attr_list { def_section ("DATA", $2);}
132 | SECTIONS seclist
133 | EXPORTS explist
134 | IMPORTS implist
135 | VERSIONK NUMBER { def_version ($2, 0);}
136 | VERSIONK NUMBER '.' NUMBER { def_version ($2, $4);}
137 | DIRECTIVE ID { def_directive ($2);}
138 ;
139
140
141explist:
142 /* EMPTY */
143 | expline
144 | explist expline
145 ;
146
147expline:
148 /* The opt_comma is necessary to support both the usual
149 DEF file syntax as well as .drectve syntax which
150 mandates <expsym>,<expoptlist>. */
151 dot_name opt_equal_name opt_ordinal opt_comma exp_opt_list
152 { def_exports ($1, $2, $3, $5); }
153 ;
154exp_opt_list:
155 /* The opt_comma is necessary to support both the usual
156 DEF file syntax as well as .drectve syntax which
157 allows for comma separated opt list. */
158 exp_opt opt_comma exp_opt_list { $$ = $1 | $3; }
159 | { $$ = 0; }
160 ;
161exp_opt:
162 NONAMEU { $$ = 1; }
163 | NONAMEL { $$ = 1; }
164 | CONSTANTU { $$ = 2; }
165 | CONSTANTL { $$ = 2; }
166 | DATAU { $$ = 4; }
167 | DATAL { $$ = 4; }
168 | PRIVATEU { $$ = 8; }
169 | PRIVATEL { $$ = 8; }
170 ;
171implist:
172 implist impline
173 | impline
174 ;
175
176impline:
177 ID '=' ID '.' ID '.' ID { def_import ($1, $3, $5, $7, -1); }
178 | ID '=' ID '.' ID '.' NUMBER { def_import ($1, $3, $5, 0, $7); }
179 | ID '=' ID '.' ID { def_import ($1, $3, 0, $5, -1); }
180 | ID '=' ID '.' NUMBER { def_import ($1, $3, 0, 0, $5); }
181 | ID '.' ID '.' ID { def_import ( 0, $1, $3, $5, -1); }
182 | ID '.' ID { def_import ( 0, $1, 0, $3, -1); }
183;
184
185seclist:
186 seclist secline
187 | secline
188 ;
189
190secline:
191 ID attr_list { def_section ($1, $2);}
192 | ID ID { def_section_alt ($1, $2);}
193 ;
194
195attr_list:
196 attr_list opt_comma attr { $$ = $1 | $3; }
197 | attr { $$ = $1; }
198 ;
199
200opt_comma:
201 ','
202 |
203 ;
204opt_number: ',' NUMBER { $$=$2;}
205 | { $$=-1;}
206 ;
207
208attr:
209 READ { $$ = 1;}
210 | WRITE { $$ = 2;}
211 | EXECUTE { $$=4;}
212 | SHARED { $$=8;}
213 ;
214
215opt_name: ID { $$ = $1; }
216 | ID '.' ID
217 {
218 char *name = xmalloc (strlen ($1) + 1 + strlen ($3) + 1);
219 sprintf (name, "%s.%s", $1, $3);
220 $$ = name;
221 }
222 | { $$ = ""; }
223 ;
224
225opt_ordinal:
226 '@' NUMBER { $$ = $2;}
227 | { $$ = -1;}
228 ;
229
230opt_equal_name:
231 '=' dot_name { $$ = $2; }
232 | { $$ = 0; }
233 ;
234
235opt_base: BASE '=' NUMBER { $$ = $3;}
236 | { $$ = -1;}
237 ;
238
239dot_name: ID { $$ = $1; }
240 | dot_name '.' ID
241 {
242 char *name = xmalloc (strlen ($1) + 1 + strlen ($3) + 1);
243 sprintf (name, "%s.%s", $1, $3);
244 $$ = name;
245 }
246 ;
247
248
249%%
250
251/*****************************************************************************
252 API
253 *****************************************************************************/
254
255static FILE *the_file;
256static const char *def_filename;
257static int linenumber;
258static def_file *def;
259static int saw_newline;
260
261struct directive
262 {
263 struct directive *next;
264 char *name;
265 int len;
266 };
267
268static struct directive *directives = 0;
269
270def_file *
271def_file_empty (void)
272{
273 def_file *rv = xmalloc (sizeof (def_file));
274 memset (rv, 0, sizeof (def_file));
275 rv->is_dll = -1;
276 rv->base_address = (bfd_vma) -1;
277 rv->stack_reserve = rv->stack_commit = -1;
278 rv->heap_reserve = rv->heap_commit = -1;
279 rv->version_major = rv->version_minor = -1;
280 return rv;
281}
282
283def_file *
284def_file_parse (const char *filename, def_file *add_to)
285{
286 struct directive *d;
287
288 the_file = fopen (filename, "r");
289 def_filename = filename;
290 linenumber = 1;
291 if (!the_file)
292 {
293 perror (filename);
294 return 0;
295 }
296 if (add_to)
297 {
298 def = add_to;
299 }
300 else
301 {
302 def = def_file_empty ();
303 }
304
305 saw_newline = 1;
306 if (def_parse ())
307 {
308 def_file_free (def);
309 fclose (the_file);
310 return 0;
311 }
312
313 fclose (the_file);
314
315 for (d = directives; d; d = d->next)
316 {
317#if TRACE
318 printf ("Adding directive %08x `%s'\n", d->name, d->name);
319#endif
320 def_file_add_directive (def, d->name, d->len);
321 }
322
323 return def;
324}
325
326void
327def_file_free (def_file *def)
328{
329 int i;
330
331 if (!def)
332 return;
333 if (def->name)
334 free (def->name);
335 if (def->description)
336 free (def->description);
337
338 if (def->section_defs)
339 {
340 for (i = 0; i < def->num_section_defs; i++)
341 {
342 if (def->section_defs[i].name)
343 free (def->section_defs[i].name);
344 if (def->section_defs[i].class)
345 free (def->section_defs[i].class);
346 }
347 free (def->section_defs);
348 }
349
350 if (def->exports)
351 {
352 for (i = 0; i < def->num_exports; i++)
353 {
354 if (def->exports[i].internal_name
355 && def->exports[i].internal_name != def->exports[i].name)
356 free (def->exports[i].internal_name);
357 if (def->exports[i].name)
358 free (def->exports[i].name);
359 }
360 free (def->exports);
361 }
362
363 if (def->imports)
364 {
365 for (i = 0; i < def->num_imports; i++)
366 {
367 if (def->imports[i].internal_name
368 && def->imports[i].internal_name != def->imports[i].name)
369 free (def->imports[i].internal_name);
370 if (def->imports[i].name)
371 free (def->imports[i].name);
372 }
373 free (def->imports);
374 }
375
376 while (def->modules)
377 {
378 def_file_module *m = def->modules;
379 def->modules = def->modules->next;
380 free (m);
381 }
382
383 free (def);
384}
385
386#ifdef DEF_FILE_PRINT
387void
388def_file_print (FILE *file, def_file *def)
389{
390 int i;
391
392 fprintf (file, ">>>> def_file at 0x%08x\n", def);
393 if (def->name)
394 fprintf (file, " name: %s\n", def->name ? def->name : "(unspecified)");
395 if (def->is_dll != -1)
396 fprintf (file, " is dll: %s\n", def->is_dll ? "yes" : "no");
397 if (def->base_address != (bfd_vma) -1)
398 fprintf (file, " base address: 0x%08x\n", def->base_address);
399 if (def->description)
400 fprintf (file, " description: `%s'\n", def->description);
401 if (def->stack_reserve != -1)
402 fprintf (file, " stack reserve: 0x%08x\n", def->stack_reserve);
403 if (def->stack_commit != -1)
404 fprintf (file, " stack commit: 0x%08x\n", def->stack_commit);
405 if (def->heap_reserve != -1)
406 fprintf (file, " heap reserve: 0x%08x\n", def->heap_reserve);
407 if (def->heap_commit != -1)
408 fprintf (file, " heap commit: 0x%08x\n", def->heap_commit);
409
410 if (def->num_section_defs > 0)
411 {
412 fprintf (file, " section defs:\n");
413
414 for (i = 0; i < def->num_section_defs; i++)
415 {
416 fprintf (file, " name: `%s', class: `%s', flags:",
417 def->section_defs[i].name, def->section_defs[i].class);
418 if (def->section_defs[i].flag_read)
419 fprintf (file, " R");
420 if (def->section_defs[i].flag_write)
421 fprintf (file, " W");
422 if (def->section_defs[i].flag_execute)
423 fprintf (file, " X");
424 if (def->section_defs[i].flag_shared)
425 fprintf (file, " S");
426 fprintf (file, "\n");
427 }
428 }
429
430 if (def->num_exports > 0)
431 {
432 fprintf (file, " exports:\n");
433
434 for (i = 0; i < def->num_exports; i++)
435 {
436 fprintf (file, " name: `%s', int: `%s', ordinal: %d, flags:",
437 def->exports[i].name, def->exports[i].internal_name,
438 def->exports[i].ordinal);
439 if (def->exports[i].flag_private)
440 fprintf (file, " P");
441 if (def->exports[i].flag_constant)
442 fprintf (file, " C");
443 if (def->exports[i].flag_noname)
444 fprintf (file, " N");
445 if (def->exports[i].flag_data)
446 fprintf (file, " D");
447 fprintf (file, "\n");
448 }
449 }
450
451 if (def->num_imports > 0)
452 {
453 fprintf (file, " imports:\n");
454
455 for (i = 0; i < def->num_imports; i++)
456 {
457 fprintf (file, " int: %s, from: `%s', name: `%s', ordinal: %d\n",
458 def->imports[i].internal_name,
459 def->imports[i].module,
460 def->imports[i].name,
461 def->imports[i].ordinal);
462 }
463 }
464
465 if (def->version_major != -1)
466 fprintf (file, " version: %d.%d\n", def->version_major, def->version_minor);
467
468 fprintf (file, "<<<< def_file at 0x%08x\n", def);
469}
470#endif
471
472def_file_export *
473def_file_add_export (def_file *def,
474 const char *external_name,
475 const char *internal_name,
476 int ordinal)
477{
478 def_file_export *e;
479 int max_exports = ROUND_UP(def->num_exports, 32);
480
481 if (def->num_exports >= max_exports)
482 {
483 max_exports = ROUND_UP(def->num_exports + 1, 32);
484 if (def->exports)
485 def->exports = xrealloc (def->exports,
486 max_exports * sizeof (def_file_export));
487 else
488 def->exports = xmalloc (max_exports * sizeof (def_file_export));
489 }
490 e = def->exports + def->num_exports;
491 memset (e, 0, sizeof (def_file_export));
492 if (internal_name && !external_name)
493 external_name = internal_name;
494 if (external_name && !internal_name)
495 internal_name = external_name;
496 e->name = xstrdup (external_name);
497 e->internal_name = xstrdup (internal_name);
498 e->ordinal = ordinal;
499 def->num_exports++;
500 return e;
501}
502
503def_file_module *
504def_get_module (def_file *def, const char *name)
505{
506 def_file_module *s;
507
508 for (s = def->modules; s; s = s->next)
509 if (strcmp (s->name, name) == 0)
510 return s;
511
512 return NULL;
513}
514
515static def_file_module *
516def_stash_module (def_file *def, const char *name)
517{
518 def_file_module *s;
519
520 if ((s = def_get_module (def, name)) != NULL)
521 return s;
522 s = xmalloc (sizeof (def_file_module) + strlen (name));
523 s->next = def->modules;
524 def->modules = s;
525 s->user_data = 0;
526 strcpy (s->name, name);
527 return s;
528}
529
530def_file_import *
531def_file_add_import (def_file *def,
532 const char *name,
533 const char *module,
534 int ordinal,
535 const char *internal_name)
536{
537 def_file_import *i;
538 int max_imports = ROUND_UP (def->num_imports, 16);
539
540 if (def->num_imports >= max_imports)
541 {
542 max_imports = ROUND_UP (def->num_imports+1, 16);
543
544 if (def->imports)
545 def->imports = xrealloc (def->imports,
546 max_imports * sizeof (def_file_import));
547 else
548 def->imports = xmalloc (max_imports * sizeof (def_file_import));
549 }
550 i = def->imports + def->num_imports;
551 memset (i, 0, sizeof (def_file_import));
552 if (name)
553 i->name = xstrdup (name);
554 if (module)
555 i->module = def_stash_module (def, module);
556 i->ordinal = ordinal;
557 if (internal_name)
558 i->internal_name = xstrdup (internal_name);
559 else
560 i->internal_name = i->name;
561 def->num_imports++;
562
563 return i;
564}
565
566struct
567{
568 char *param;
569 int token;
570}
571diropts[] =
572{
573 { "-heap", HEAPSIZE },
574 { "-stack", STACKSIZE },
575 { "-attr", SECTIONS },
576 { "-export", EXPORTS },
577 { 0, 0 }
578};
579
580void
581def_file_add_directive (def_file *my_def, const char *param, int len)
582{
583 def_file *save_def = def;
584 const char *pend = param + len;
585 char * tend = (char *) param;
586 int i;
587
588 def = my_def;
589
590 while (param < pend)
591 {
592 while (param < pend
593 && (ISSPACE (*param) || *param == '\n' || *param == 0))
594 param++;
595
596 if (param == pend)
597 break;
598
599 /* Scan forward until we encounter any of:
600 - the end of the buffer
601 - the start of a new option
602 - a newline seperating options
603 - a NUL seperating options. */
604 for (tend = (char *) (param + 1);
605 (tend < pend
606 && !(ISSPACE (tend[-1]) && *tend == '-')
607 && *tend != '\n' && *tend != 0);
608 tend++)
609 ;
610
611 for (i = 0; diropts[i].param; i++)
612 {
613 int len = strlen (diropts[i].param);
614
615 if (tend - param >= len
616 && strncmp (param, diropts[i].param, len) == 0
617 && (param[len] == ':' || param[len] == ' '))
618 {
619 lex_parse_string_end = tend;
620 lex_parse_string = param + len + 1;
621 lex_forced_token = diropts[i].token;
622 saw_newline = 0;
623 if (def_parse ())
624 continue;
625 break;
626 }
627 }
628
629 if (!diropts[i].param)
630 {
631 char saved;
632
633 saved = * tend;
634 * tend = 0;
635 /* xgettext:c-format */
636 einfo (_("Warning: .drectve `%s' unrecognized\n"), param);
637 * tend = saved;
638 }
639
640 lex_parse_string = 0;
641 param = tend;
642 }
643
644 def = save_def;
645}
646
647/* Parser Callbacks. */
648
649static void
650def_name (const char *name, int base)
651{
652 if (def->name)
653 free (def->name);
654 def->name = xstrdup (name);
655 def->base_address = base;
656 def->is_dll = 0;
657}
658
659static void
660def_library (const char *name, int base)
661{
662 if (def->name)
663 free (def->name);
664 def->name = xstrdup (name);
665 def->base_address = base;
666 def->is_dll = 1;
667}
668
669static void
670def_description (const char *text)
671{
672 int len = def->description ? strlen (def->description) : 0;
673
674 len += strlen (text) + 1;
675 if (def->description)
676 {
677 def->description = xrealloc (def->description, len);
678 strcat (def->description, text);
679 }
680 else
681 {
682 def->description = xmalloc (len);
683 strcpy (def->description, text);
684 }
685}
686
687static void
688def_stacksize (int reserve, int commit)
689{
690 def->stack_reserve = reserve;
691 def->stack_commit = commit;
692}
693
694static void
695def_heapsize (int reserve, int commit)
696{
697 def->heap_reserve = reserve;
698 def->heap_commit = commit;
699}
700
701static void
702def_section (const char *name, int attr)
703{
704 def_file_section *s;
705 int max_sections = ROUND_UP (def->num_section_defs, 4);
706
707 if (def->num_section_defs >= max_sections)
708 {
709 max_sections = ROUND_UP (def->num_section_defs+1, 4);
710
711 if (def->section_defs)
712 def->section_defs = xrealloc (def->section_defs,
713 max_sections * sizeof (def_file_import));
714 else
715 def->section_defs = xmalloc (max_sections * sizeof (def_file_import));
716 }
717 s = def->section_defs + def->num_section_defs;
718 memset (s, 0, sizeof (def_file_section));
719 s->name = xstrdup (name);
720 if (attr & 1)
721 s->flag_read = 1;
722 if (attr & 2)
723 s->flag_write = 1;
724 if (attr & 4)
725 s->flag_execute = 1;
726 if (attr & 8)
727 s->flag_shared = 1;
728
729 def->num_section_defs++;
730}
731
732static void
733def_section_alt (const char *name, const char *attr)
734{
735 int aval = 0;
736
737 for (; *attr; attr++)
738 {
739 switch (*attr)
740 {
741 case 'R':
742 case 'r':
743 aval |= 1;
744 break;
745 case 'W':
746 case 'w':
747 aval |= 2;
748 break;
749 case 'X':
750 case 'x':
751 aval |= 4;
752 break;
753 case 'S':
754 case 's':
755 aval |= 8;
756 break;
757 }
758 }
759 def_section (name, aval);
760}
761
762static void
763def_exports (const char *external_name,
764 const char *internal_name,
765 int ordinal,
766 int flags)
767{
768 def_file_export *dfe;
769
770 if (!internal_name && external_name)
771 internal_name = external_name;
772#if TRACE
773 printf ("def_exports, ext=%s int=%s\n", external_name, internal_name);
774#endif
775
776 dfe = def_file_add_export (def, external_name, internal_name, ordinal);
777 if (flags & 1)
778 dfe->flag_noname = 1;
779 if (flags & 2)
780 dfe->flag_constant = 1;
781 if (flags & 4)
782 dfe->flag_data = 1;
783 if (flags & 8)
784 dfe->flag_private = 1;
785}
786
787static void
788def_import (const char *internal_name,
789 const char *module,
790 const char *dllext,
791 const char *name,
792 int ordinal)
793{
794 char *buf = 0;
795 const char *ext = dllext ? dllext : "dll";
796
797 buf = xmalloc (strlen (module) + strlen (ext) + 2);
798 sprintf (buf, "%s.%s", module, ext);
799 module = buf;
800
801 def_file_add_import (def, name, module, ordinal, internal_name);
802 if (buf)
803 free (buf);
804}
805
806static void
807def_version (int major, int minor)
808{
809 def->version_major = major;
810 def->version_minor = minor;
811}
812
813static void
814def_directive (char *str)
815{
816 struct directive *d = xmalloc (sizeof (struct directive));
817
818 d->next = directives;
819 directives = d;
820 d->name = xstrdup (str);
821 d->len = strlen (str);
822}
823
824static int
825def_error (const char *err)
826{
827 einfo ("%P: %s:%d: %s\n",
828 def_filename ? def_filename : "<unknown-file>", linenumber, err);
829 return 0;
830}
831
832
833/* Lexical Scanner. */
834
835#undef TRACE
836#define TRACE 0
837
838/* Never freed, but always reused as needed, so no real leak. */
839static char *buffer = 0;
840static int buflen = 0;
841static int bufptr = 0;
842
843static void
844put_buf (char c)
845{
846 if (bufptr == buflen)
847 {
848 buflen += 50; /* overly reasonable, eh? */
849 if (buffer)
850 buffer = xrealloc (buffer, buflen + 1);
851 else
852 buffer = xmalloc (buflen + 1);
853 }
854 buffer[bufptr++] = c;
855 buffer[bufptr] = 0; /* not optimal, but very convenient. */
856}
857
858static struct
859{
860 char *name;
861 int token;
862}
863tokens[] =
864{
865 { "BASE", BASE },
866 { "CODE", CODE },
867 { "CONSTANT", CONSTANTU },
868 { "constant", CONSTANTL },
869 { "DATA", DATAU },
870 { "data", DATAL },
871 { "DESCRIPTION", DESCRIPTION },
872 { "DIRECTIVE", DIRECTIVE },
873 { "EXECUTE", EXECUTE },
874 { "EXPORTS", EXPORTS },
875 { "HEAPSIZE", HEAPSIZE },
876 { "IMPORTS", IMPORTS },
877 { "LIBRARY", LIBRARY },
878 { "NAME", NAME },
879 { "NONAME", NONAMEU },
880 { "noname", NONAMEL },
881 { "PRIVATE", PRIVATEU },
882 { "private", PRIVATEL },
883 { "READ", READ },
884 { "SECTIONS", SECTIONS },
885 { "SEGMENTS", SECTIONS },
886 { "SHARED", SHARED },
887 { "STACKSIZE", STACKSIZE },
888 { "VERSION", VERSIONK },
889 { "WRITE", WRITE },
890 { 0, 0 }
891};
892
893static int
894def_getc (void)
895{
896 int rv;
897
898 if (lex_parse_string)
899 {
900 if (lex_parse_string >= lex_parse_string_end)
901 rv = EOF;
902 else
903 rv = *lex_parse_string++;
904 }
905 else
906 {
907 rv = fgetc (the_file);
908 }
909 if (rv == '\n')
910 saw_newline = 1;
911 return rv;
912}
913
914static int
915def_ungetc (int c)
916{
917 if (lex_parse_string)
918 {
919 lex_parse_string--;
920 return c;
921 }
922 else
923 return ungetc (c, the_file);
924}
925
926static int
927def_lex (void)
928{
929 int c, i, q;
930
931 if (lex_forced_token)
932 {
933 i = lex_forced_token;
934 lex_forced_token = 0;
935#if TRACE
936 printf ("lex: forcing token %d\n", i);
937#endif
938 return i;
939 }
940
941 c = def_getc ();
942
943 /* Trim leading whitespace. */
944 while (c != EOF && (c == ' ' || c == '\t') && saw_newline)
945 c = def_getc ();
946
947 if (c == EOF)
948 {
949#if TRACE
950 printf ("lex: EOF\n");
951#endif
952 return 0;
953 }
954
955 if (saw_newline && c == ';')
956 {
957 do
958 {
959 c = def_getc ();
960 }
961 while (c != EOF && c != '\n');
962 if (c == '\n')
963 return def_lex ();
964 return 0;
965 }
966
967 /* Must be something else. */
968 saw_newline = 0;
969
970 if (ISDIGIT (c))
971 {
972 bufptr = 0;
973 while (c != EOF && (ISXDIGIT (c) || (c == 'x')))
974 {
975 put_buf (c);
976 c = def_getc ();
977 }
978 if (c != EOF)
979 def_ungetc (c);
980 yylval.number = strtoul (buffer, 0, 0);
981#if TRACE
982 printf ("lex: `%s' returns NUMBER %d\n", buffer, yylval.number);
983#endif
984 return NUMBER;
985 }
986
987 if (ISALPHA (c) || strchr ("$:-_?@", c))
988 {
989 bufptr = 0;
990 q = c;
991 put_buf (c);
992 c = def_getc ();
993
994 if (q == '@')
995 {
996 if (ISBLANK (c) ) /* '@' followed by whitespace. */
997 return (q);
998 else if (ISDIGIT (c)) /* '@' followed by digit. */
999 {
1000 def_ungetc (c);
1001 return (q);
1002 }
1003#if TRACE
1004 printf ("lex: @ returns itself\n");
1005#endif
1006 }
1007
1008 while (c != EOF && (ISALNUM (c) || strchr ("$:-_?/@", c)))
1009 {
1010 put_buf (c);
1011 c = def_getc ();
1012 }
1013 if (c != EOF)
1014 def_ungetc (c);
1015 if (ISALPHA (q)) /* Check for tokens. */
1016 {
1017 for (i = 0; tokens[i].name; i++)
1018 if (strcmp (tokens[i].name, buffer) == 0)
1019 {
1020#if TRACE
1021 printf ("lex: `%s' is a string token\n", buffer);
1022#endif
1023 return tokens[i].token;
1024 }
1025 }
1026#if TRACE
1027 printf ("lex: `%s' returns ID\n", buffer);
1028#endif
1029 yylval.id = xstrdup (buffer);
1030 return ID;
1031 }
1032
1033 if (c == '\'' || c == '"')
1034 {
1035 q = c;
1036 c = def_getc ();
1037 bufptr = 0;
1038
1039 while (c != EOF && c != q)
1040 {
1041 put_buf (c);
1042 c = def_getc ();
1043 }
1044 yylval.id = xstrdup (buffer);
1045#if TRACE
1046 printf ("lex: `%s' returns ID\n", buffer);
1047#endif
1048 return ID;
1049 }
1050
1051 if (c == '=' || c == '.' || c == ',')
1052 {
1053#if TRACE
1054 printf ("lex: `%c' returns itself\n", c);
1055#endif
1056 return c;
1057 }
1058
1059 if (c == '\n')
1060 {
1061 linenumber++;
1062 saw_newline = 1;
1063 }
1064
1065 /*printf ("lex: 0x%02x ignored\n", c); */
1066 return def_lex ();
1067}
GDB Binutils - Deliverables
This page took 0.025924 seconds and 4 git commands to generate.