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e2500fed GK |
1 | /* Process source files and output type information. |
2 | Copyright (C) 2002 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 2, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #include "hconfig.h" | |
22 | #include "system.h" | |
e2500fed GK |
23 | #include "gengtype.h" |
24 | ||
9f313342 | 25 | /* Nonzero iff an error has occurred. */ |
e2500fed | 26 | static int hit_error = 0; |
9f313342 GK |
27 | |
28 | /* Report an error at POS, printing MSG. */ | |
29 | ||
e2500fed GK |
30 | void |
31 | error_at_line VPARAMS ((struct fileloc *pos, const char *msg, ...)) | |
32 | { | |
33 | VA_OPEN (ap, msg); | |
34 | VA_FIXEDARG (ap, struct fileloc *, pos); | |
35 | VA_FIXEDARG (ap, const char *, msg); | |
36 | ||
37 | fprintf (stderr, "%s:%d: ", pos->file, pos->line); | |
38 | vfprintf (stderr, msg, ap); | |
39 | fputc ('\n', stderr); | |
40 | hit_error = 1; | |
41 | ||
42 | VA_CLOSE (ap); | |
43 | } | |
44 | ||
9f313342 GK |
45 | /* The one and only TYPE_STRING. */ |
46 | ||
e2500fed GK |
47 | struct type string_type = { |
48 | TYPE_STRING, NULL, NULL, GC_USED | |
49 | UNION_INIT_ZERO | |
50 | }; | |
51 | ||
9f313342 GK |
52 | /* Lists of various things. */ |
53 | ||
e2500fed GK |
54 | static pair_p typedefs; |
55 | static type_p structures; | |
56 | static type_p param_structs; | |
57 | static pair_p variables; | |
58 | ||
9f313342 GK |
59 | /* Define S as a typedef to T at POS. */ |
60 | ||
e2500fed GK |
61 | void |
62 | do_typedef (s, t, pos) | |
63 | const char *s; | |
64 | type_p t; | |
65 | struct fileloc *pos; | |
66 | { | |
67 | pair_p p; | |
68 | ||
69 | for (p = typedefs; p != NULL; p = p->next) | |
70 | if (strcmp (p->name, s) == 0) | |
71 | { | |
72 | if (p->type != t) | |
73 | { | |
74 | error_at_line (pos, "type `%s' previously defined", s); | |
75 | error_at_line (&p->line, "previously defined here"); | |
76 | } | |
77 | return; | |
78 | } | |
79 | ||
80 | p = xmalloc (sizeof (struct pair)); | |
81 | p->next = typedefs; | |
82 | p->name = s; | |
83 | p->type = t; | |
84 | p->line = *pos; | |
85 | typedefs = p; | |
86 | } | |
87 | ||
9f313342 GK |
88 | /* Return the type previously defined for S. Use POS to report errors. */ |
89 | ||
e2500fed GK |
90 | type_p |
91 | resolve_typedef (s, pos) | |
92 | const char *s; | |
93 | struct fileloc *pos; | |
94 | { | |
95 | pair_p p; | |
96 | for (p = typedefs; p != NULL; p = p->next) | |
97 | if (strcmp (p->name, s) == 0) | |
98 | return p->type; | |
99 | error_at_line (pos, "unidentified type `%s'", s); | |
100 | return create_scalar_type ("char", 4); | |
101 | } | |
102 | ||
9f313342 GK |
103 | /* Create a new structure with tag NAME (or a union iff ISUNION is nonzero), |
104 | at POS with fields FIELDS and options O. */ | |
105 | ||
e2500fed GK |
106 | void |
107 | new_structure (name, isunion, pos, fields, o) | |
108 | const char *name; | |
109 | int isunion; | |
110 | struct fileloc *pos; | |
111 | pair_p fields; | |
112 | options_p o; | |
113 | { | |
114 | type_p si; | |
115 | type_p s = NULL; | |
116 | lang_bitmap bitmap = get_base_file_bitmap (pos->file); | |
117 | ||
118 | for (si = structures; si != NULL; si = si->next) | |
119 | if (strcmp (name, si->u.s.tag) == 0 | |
120 | && UNION_P (si) == isunion) | |
121 | { | |
122 | type_p ls = NULL; | |
123 | if (si->kind == TYPE_LANG_STRUCT) | |
124 | { | |
125 | ls = si; | |
126 | ||
127 | for (si = ls->u.s.lang_struct; si != NULL; si = si->next) | |
128 | if (si->u.s.bitmap == bitmap) | |
129 | s = si; | |
130 | } | |
131 | else if (si->u.s.line.file != NULL && si->u.s.bitmap != bitmap) | |
132 | { | |
133 | ls = si; | |
134 | si = xcalloc (1, sizeof (struct type)); | |
135 | memcpy (si, ls, sizeof (struct type)); | |
136 | ls->kind = TYPE_LANG_STRUCT; | |
137 | ls->u.s.lang_struct = si; | |
138 | ls->u.s.fields = NULL; | |
139 | si->next = NULL; | |
140 | si->pointer_to = NULL; | |
141 | si->u.s.lang_struct = ls; | |
142 | } | |
143 | else | |
144 | s = si; | |
145 | ||
146 | if (ls != NULL && s == NULL) | |
147 | { | |
148 | s = xcalloc (1, sizeof (struct type)); | |
149 | s->next = ls->u.s.lang_struct; | |
150 | ls->u.s.lang_struct = s; | |
151 | s->u.s.lang_struct = ls; | |
152 | } | |
153 | break; | |
154 | } | |
155 | ||
156 | if (s == NULL) | |
157 | { | |
158 | s = xcalloc (1, sizeof (struct type)); | |
159 | s->next = structures; | |
160 | structures = s; | |
161 | } | |
162 | ||
163 | if (s->u.s.line.file != NULL | |
164 | || (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap))) | |
165 | { | |
166 | error_at_line (pos, "duplicate structure definition"); | |
167 | error_at_line (&s->u.s.line, "previous definition here"); | |
168 | } | |
169 | ||
170 | s->kind = isunion ? TYPE_UNION : TYPE_STRUCT; | |
171 | s->u.s.tag = name; | |
172 | s->u.s.line = *pos; | |
173 | s->u.s.fields = fields; | |
174 | s->u.s.opt = o; | |
175 | s->u.s.bitmap = bitmap; | |
176 | if (s->u.s.lang_struct) | |
177 | s->u.s.lang_struct->u.s.bitmap |= bitmap; | |
178 | } | |
179 | ||
9f313342 GK |
180 | /* Return the previously-defined structure with tag NAME (or a union |
181 | iff ISUNION is nonzero), or a new empty structure or union if none | |
182 | was defined previously. */ | |
183 | ||
e2500fed GK |
184 | type_p |
185 | find_structure (name, isunion) | |
186 | const char *name; | |
187 | int isunion; | |
188 | { | |
189 | type_p s; | |
190 | ||
191 | for (s = structures; s != NULL; s = s->next) | |
192 | if (strcmp (name, s->u.s.tag) == 0 | |
193 | && UNION_P (s) == isunion) | |
194 | return s; | |
195 | ||
196 | s = xcalloc (1, sizeof (struct type)); | |
197 | s->next = structures; | |
198 | structures = s; | |
199 | s->kind = isunion ? TYPE_UNION : TYPE_STRUCT; | |
200 | s->u.s.tag = name; | |
201 | structures = s; | |
202 | return s; | |
203 | } | |
204 | ||
9f313342 GK |
205 | /* Return a scalar type with name NAME. */ |
206 | ||
e2500fed GK |
207 | type_p |
208 | create_scalar_type (name, name_len) | |
209 | const char *name; | |
210 | size_t name_len; | |
211 | { | |
212 | type_p r = xcalloc (1, sizeof (struct type)); | |
213 | r->kind = TYPE_SCALAR; | |
214 | r->u.sc = xmemdup (name, name_len, name_len + 1); | |
215 | return r; | |
216 | } | |
217 | ||
9f313342 GK |
218 | /* Return a pointer to T. */ |
219 | ||
e2500fed GK |
220 | type_p |
221 | create_pointer (t) | |
222 | type_p t; | |
223 | { | |
224 | if (! t->pointer_to) | |
225 | { | |
226 | type_p r = xcalloc (1, sizeof (struct type)); | |
227 | r->kind = TYPE_POINTER; | |
228 | r->u.p = t; | |
229 | t->pointer_to = r; | |
230 | } | |
231 | return t->pointer_to; | |
232 | } | |
233 | ||
9f313342 GK |
234 | /* Return an array of length LEN. */ |
235 | ||
e2500fed GK |
236 | type_p |
237 | create_array (t, len) | |
238 | type_p t; | |
239 | const char *len; | |
240 | { | |
241 | type_p v; | |
242 | ||
243 | v = xcalloc (1, sizeof (*v)); | |
244 | v->kind = TYPE_ARRAY; | |
245 | v->u.a.p = t; | |
246 | v->u.a.len = len; | |
247 | return v; | |
248 | } | |
249 | ||
9f313342 GK |
250 | /* Perform any special processing on a type T, about to become the type |
251 | of a field. Return the appropriate type for the field. | |
252 | At present: | |
253 | - Converts pointer-to-char, with no length parameter, to TYPE_STRING; | |
254 | - Similarly for arrays of pointer-to-char; | |
255 | - Converts structures for which a parameter is provided to | |
256 | TYPE_PARAM_STRUCT. | |
257 | */ | |
258 | ||
e2500fed GK |
259 | type_p |
260 | adjust_field_type (t, opt) | |
261 | type_p t; | |
262 | options_p opt; | |
263 | { | |
264 | int length_p = 0; | |
265 | const int pointer_p = t->kind == TYPE_POINTER; | |
266 | ||
267 | for (; opt; opt = opt->next) | |
268 | if (strcmp (opt->name, "length") == 0) | |
269 | length_p = 1; | |
270 | else if (strcmp (opt->name, "param_is") == 0) | |
271 | { | |
272 | type_p realt; | |
273 | ||
274 | if (pointer_p) | |
275 | t = t->u.p; | |
276 | ||
277 | for (realt = param_structs; realt; realt = realt->next) | |
278 | if (realt->u.param_struct.stru == t | |
279 | && realt->u.param_struct.param == (type_p) opt->info) | |
280 | return pointer_p ? create_pointer (realt) : realt; | |
281 | realt = xcalloc (1, sizeof (*realt)); | |
282 | realt->kind = TYPE_PARAM_STRUCT; | |
283 | realt->next = param_structs; | |
284 | param_structs = realt; | |
285 | realt->u.param_struct.stru = t; | |
286 | realt->u.param_struct.param = (type_p) opt->info; | |
287 | return pointer_p ? create_pointer (realt) : realt; | |
288 | } | |
289 | ||
290 | if (! length_p | |
291 | && pointer_p | |
292 | && t->u.p->kind == TYPE_SCALAR | |
293 | && (strcmp (t->u.p->u.sc, "char") == 0 | |
294 | || strcmp (t->u.p->u.sc, "unsigned char") == 0)) | |
295 | return &string_type; | |
296 | if (t->kind == TYPE_ARRAY && t->u.a.p->kind == TYPE_POINTER | |
297 | && t->u.a.p->u.p->kind == TYPE_SCALAR | |
298 | && (strcmp (t->u.a.p->u.p->u.sc, "char") == 0 | |
299 | || strcmp (t->u.a.p->u.p->u.sc, "unsigned char") == 0)) | |
300 | return create_array (&string_type, t->u.a.len); | |
301 | ||
302 | return t; | |
303 | } | |
304 | ||
9f313342 GK |
305 | /* Add a variable named S of type T with options O defined at POS, |
306 | to `variables'. */ | |
307 | ||
e2500fed GK |
308 | void |
309 | note_variable (s, t, o, pos) | |
310 | const char *s; | |
311 | type_p t; | |
312 | options_p o; | |
313 | struct fileloc *pos; | |
314 | { | |
315 | pair_p n; | |
316 | n = xmalloc (sizeof (*n)); | |
317 | n->name = s; | |
318 | n->type = t; | |
319 | n->line = *pos; | |
320 | n->opt = o; | |
321 | n->next = variables; | |
322 | variables = n; | |
323 | } | |
324 | ||
9f313342 GK |
325 | /* Create a union for YYSTYPE, as yacc would do it, given a fieldlist FIELDS |
326 | and information about the correspondance between token types and fields | |
327 | in TYPEINFO. POS is used for error messages. */ | |
328 | ||
e2500fed GK |
329 | void |
330 | note_yacc_type (o, fields, typeinfo, pos) | |
331 | options_p o; | |
332 | pair_p fields; | |
333 | pair_p typeinfo; | |
334 | struct fileloc *pos; | |
335 | { | |
336 | pair_p p; | |
337 | pair_p *p_p; | |
338 | ||
339 | for (p = typeinfo; p; p = p->next) | |
340 | { | |
341 | pair_p m; | |
342 | ||
343 | if (p->name == NULL) | |
344 | continue; | |
345 | ||
346 | if (p->type == (type_p) 1) | |
347 | { | |
348 | pair_p pp; | |
349 | int ok = 0; | |
350 | ||
351 | for (pp = typeinfo; pp; pp = pp->next) | |
352 | if (pp->type != (type_p) 1 | |
353 | && strcmp (pp->opt->info, p->opt->info) == 0) | |
354 | { | |
355 | ok = 1; | |
356 | break; | |
357 | } | |
358 | if (! ok) | |
359 | continue; | |
360 | } | |
361 | ||
362 | for (m = fields; m; m = m->next) | |
363 | if (strcmp (m->name, p->name) == 0) | |
364 | p->type = m->type; | |
365 | if (p->type == NULL) | |
366 | { | |
367 | error_at_line (&p->line, | |
368 | "couldn't match fieldname `%s'", p->name); | |
369 | p->name = NULL; | |
370 | } | |
371 | } | |
372 | ||
373 | p_p = &typeinfo; | |
374 | while (*p_p) | |
375 | { | |
376 | pair_p p = *p_p; | |
377 | ||
378 | if (p->name == NULL | |
379 | || p->type == (type_p) 1) | |
380 | *p_p = p->next; | |
381 | else | |
382 | p_p = &p->next; | |
383 | } | |
384 | ||
385 | new_structure ("yy_union", 1, pos, typeinfo, o); | |
386 | do_typedef ("YYSTYPE", find_structure ("yy_union", 1), pos); | |
387 | } | |
388 | \f | |
389 | static void process_gc_options PARAMS ((options_p, enum gc_used_enum, int *)); | |
390 | static void set_gc_used_type PARAMS ((type_p, enum gc_used_enum)); | |
391 | static void set_gc_used PARAMS ((pair_p)); | |
392 | ||
9f313342 GK |
393 | /* Handle OPT for set_gc_used_type. */ |
394 | ||
e2500fed GK |
395 | static void |
396 | process_gc_options (opt, level, maybe_undef) | |
397 | options_p opt; | |
398 | enum gc_used_enum level; | |
399 | int *maybe_undef; | |
400 | { | |
401 | options_p o; | |
402 | for (o = opt; o; o = o->next) | |
403 | if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO) | |
404 | set_gc_used_type ((type_p) o->info, GC_POINTED_TO); | |
405 | else if (strcmp (o->name, "maybe_undef") == 0) | |
406 | *maybe_undef = 1; | |
407 | } | |
408 | ||
9f313342 GK |
409 | /* Set the gc_used field of T to LEVEL, and handle the types it references. */ |
410 | ||
e2500fed GK |
411 | static void |
412 | set_gc_used_type (t, level) | |
413 | type_p t; | |
414 | enum gc_used_enum level; | |
415 | { | |
416 | if (t->gc_used >= level) | |
417 | return; | |
418 | ||
419 | t->gc_used = level; | |
420 | ||
421 | switch (t->kind) | |
422 | { | |
423 | case TYPE_STRUCT: | |
424 | case TYPE_UNION: | |
425 | { | |
426 | pair_p f; | |
427 | int dummy; | |
428 | ||
429 | process_gc_options (t->u.s.opt, level, &dummy); | |
430 | ||
431 | for (f = t->u.s.fields; f; f = f->next) | |
432 | { | |
433 | int maybe_undef = 0; | |
434 | process_gc_options (t->u.s.opt, level, &maybe_undef); | |
435 | ||
436 | if (maybe_undef && f->type->kind == TYPE_POINTER) | |
437 | set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO); | |
438 | else | |
439 | set_gc_used_type (f->type, GC_USED); | |
440 | } | |
441 | break; | |
442 | } | |
443 | ||
444 | case TYPE_POINTER: | |
445 | set_gc_used_type (t->u.p, GC_POINTED_TO); | |
446 | break; | |
447 | ||
448 | case TYPE_ARRAY: | |
449 | set_gc_used_type (t->u.a.p, GC_USED); | |
450 | break; | |
451 | ||
452 | case TYPE_LANG_STRUCT: | |
453 | for (t = t->u.s.lang_struct; t; t = t->next) | |
454 | set_gc_used_type (t, level); | |
455 | break; | |
456 | ||
457 | case TYPE_PARAM_STRUCT: | |
458 | set_gc_used_type (t->u.param_struct.param, GC_POINTED_TO); | |
459 | set_gc_used_type (t->u.param_struct.stru, GC_USED); | |
460 | break; | |
461 | ||
462 | default: | |
463 | break; | |
464 | } | |
465 | } | |
466 | ||
9f313342 GK |
467 | /* Set the gc_used fileds of all the types pointed to by VARIABLES. */ |
468 | ||
e2500fed GK |
469 | static void |
470 | set_gc_used (variables) | |
471 | pair_p variables; | |
472 | { | |
473 | pair_p p; | |
474 | for (p = variables; p; p = p->next) | |
475 | set_gc_used_type (p->type, GC_USED); | |
476 | } | |
477 | \f | |
478 | /* File mapping routines. For each input file, there is one output .c file | |
479 | (but some output files have many input files), and there is one .h file | |
480 | for the whole build. */ | |
481 | ||
482 | typedef struct filemap *filemap_p; | |
483 | ||
484 | struct filemap { | |
485 | filemap_p next; | |
486 | const char *input_name; | |
487 | const char *output_name; | |
488 | FILE *output; | |
489 | }; | |
490 | ||
9f313342 GK |
491 | /* The list of output files. */ |
492 | ||
e2500fed | 493 | static filemap_p files; |
9f313342 GK |
494 | |
495 | /* The output header file that is included into pretty much every | |
496 | source file. */ | |
497 | ||
e2500fed GK |
498 | FILE * header_file; |
499 | ||
500 | enum { | |
501 | BASE_FILE_C, | |
502 | BASE_FILE_OBJC, | |
96e3ac4f TJ |
503 | BASE_FILE_CPLUSPLUS, |
504 | BASE_FILE_TREELANG, | |
505 | BASE_FILE_COBOL | |
e2500fed | 506 | }; |
96e3ac4f | 507 | |
e2500fed | 508 | static const char *lang_names[] = { |
96e3ac4f | 509 | "c", "objc", "cp", "treelang", "cobol", "f", "ada", "java" |
e2500fed GK |
510 | }; |
511 | #define NUM_BASE_FILES (sizeof (lang_names) / sizeof (lang_names[0])) | |
512 | FILE *base_files[NUM_BASE_FILES]; | |
513 | ||
514 | static FILE * create_file PARAMS ((const char *)); | |
515 | static const char * get_file_basename PARAMS ((const char *)); | |
516 | ||
9f313342 GK |
517 | /* Create and return a FILE* for a new header file to be called NAME. */ |
518 | ||
e2500fed GK |
519 | static FILE * |
520 | create_file (name) | |
521 | const char *name; | |
522 | { | |
523 | static const char *const hdr[] = { | |
524 | " Copyright (C) 2002 Free Software Foundation, Inc.\n", | |
525 | "\n", | |
526 | "This file is part of GCC.\n", | |
527 | "\n", | |
528 | "GCC is free software; you can redistribute it and/or modify it under\n", | |
529 | "the terms of the GNU General Public License as published by the Free\n", | |
530 | "Software Foundation; either version 2, or (at your option) any later\n", | |
531 | "version.\n", | |
532 | "\n", | |
533 | "GCC is distributed in the hope that it will be useful, but WITHOUT ANY\n", | |
534 | "WARRANTY; without even the implied warranty of MERCHANTABILITY or\n", | |
535 | "FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n", | |
536 | "for more details.\n", | |
537 | "\n", | |
538 | "You should have received a copy of the GNU General Public License\n", | |
539 | "along with GCC; see the file COPYING. If not, write to the Free\n", | |
540 | "Software Foundation, 59 Temple Place - Suite 330, Boston, MA\n", | |
541 | "02111-1307, USA. */\n", | |
542 | "\n", | |
543 | "/* This file is machine generated. Do not edit. */\n" | |
544 | }; | |
545 | FILE *f; | |
546 | size_t i; | |
547 | ||
548 | f = tmpfile(); | |
549 | if (f == NULL) | |
550 | { | |
551 | perror ("couldn't create temporary file"); | |
552 | exit (1); | |
553 | } | |
554 | fprintf (f, "/* Type information for %s.\n", name); | |
555 | for (i = 0; i < sizeof(hdr)/sizeof(hdr[0]); i++) | |
556 | fputs (hdr[i], f); | |
557 | return f; | |
558 | } | |
559 | ||
9f313342 GK |
560 | /* Open the global header file and the language-specific header files. */ |
561 | ||
e2500fed GK |
562 | static void |
563 | open_base_files (void) | |
564 | { | |
565 | size_t i; | |
566 | ||
567 | header_file = create_file ("GCC"); | |
568 | ||
569 | for (i = 0; i < NUM_BASE_FILES; i++) | |
570 | { | |
571 | filemap_p newf; | |
572 | char *s; | |
573 | ||
574 | base_files[i] = create_file (lang_names[i]); | |
575 | newf = xmalloc (sizeof (*newf)); | |
576 | newf->next = files; | |
577 | files = newf; | |
578 | newf->input_name = NULL; | |
579 | newf->output = base_files[i]; | |
580 | newf->output_name = s = xmalloc (16); | |
581 | sprintf (s, "gtype-%s.h", lang_names[i]); | |
582 | } | |
583 | } | |
584 | ||
585 | #define startswith(len, c, s) \ | |
586 | ((size_t)(len) >= strlen (s) && memcmp (c, s, strlen (s)) == 0) | |
587 | ||
9f313342 GK |
588 | /* Determine the pathname to F relative to $(srcdir). */ |
589 | ||
e2500fed GK |
590 | static const char * |
591 | get_file_basename (f) | |
592 | const char *f; | |
593 | { | |
594 | size_t len; | |
595 | const char *basename; | |
596 | ||
597 | /* Determine the output file name. */ | |
598 | len = strlen (f); | |
599 | basename = strrchr (f, '/'); | |
600 | if (basename == NULL) | |
601 | basename = f; | |
602 | else | |
603 | basename++; | |
604 | if (startswith (basename - f, basename-2, "f/")) | |
605 | basename -= 2; | |
606 | else if (startswith (basename - f, basename-3, "cp/")) | |
607 | basename -= 3; | |
608 | else if (startswith (basename - f, basename-4, "ada/")) | |
609 | basename -= 4; | |
610 | else if (startswith (basename - f, basename-5, "java/")) | |
611 | basename -= 5; | |
612 | else if (startswith (basename - f, basename-5, "objc/")) | |
613 | basename -= 5; | |
96e3ac4f TJ |
614 | else if (startswith (basename - f, basename-9, "treelang/")) |
615 | basename -= 9; | |
616 | else if (startswith (basename - f, basename-6, "cobol/")) | |
617 | basename -= 6; | |
e2500fed GK |
618 | |
619 | return basename; | |
620 | } | |
621 | ||
9f313342 GK |
622 | /* Return a bitmap which has bit `1 << BASE_FILE_<lang>' set iff |
623 | INPUT_FILE is used by <lang>. | |
624 | ||
625 | This function should be written to assume that a file _is_ used | |
626 | if the situation is unclear. If it wrongly assumes a file _is_ used, | |
627 | a linker error will result. If it wrongly assumes a file _is not_ used, | |
628 | some GC roots may be missed, which is a much harder-to-debug problem. */ | |
629 | ||
e2500fed GK |
630 | unsigned |
631 | get_base_file_bitmap (input_file) | |
632 | const char *input_file; | |
633 | { | |
634 | const char *basename = get_file_basename (input_file); | |
635 | const char *slashpos = strchr (basename, '/'); | |
636 | size_t len = strlen (basename); | |
637 | ||
638 | if (slashpos != NULL) | |
639 | { | |
640 | size_t i; | |
641 | for (i = 0; i < NUM_BASE_FILES; i++) | |
642 | if ((size_t)(slashpos - basename) == strlen (lang_names [i]) | |
643 | && memcmp (basename, lang_names[i], strlen (lang_names[i])) == 0) | |
644 | return 1 << i; | |
645 | } | |
646 | else if (strcmp (basename, "c-lang.c") == 0) | |
647 | return 1 << BASE_FILE_C; | |
648 | else if (strcmp (basename, "c-parse.in") == 0 | |
649 | || strcmp (basename, "c-tree.h") == 0 | |
650 | || strcmp (basename, "c-decl.c") == 0 | |
651 | || strcmp (basename, "c-objc-common.c") == 0) | |
652 | return 1 << BASE_FILE_C | 1 << BASE_FILE_OBJC; | |
96e3ac4f TJ |
653 | else if (startswith (len, basename, "c-common.c")) |
654 | return 1 << BASE_FILE_C | 1 << BASE_FILE_OBJC| 1 << BASE_FILE_CPLUSPLUS | |
655 | | 1 << BASE_FILE_TREELANG | 1 << BASE_FILE_COBOL; | |
e2500fed GK |
656 | else if (startswith (len, basename, "c-")) |
657 | return 1 << BASE_FILE_C | 1 << BASE_FILE_OBJC | 1 << BASE_FILE_CPLUSPLUS; | |
658 | else | |
659 | return (1 << NUM_BASE_FILES) - 1; | |
660 | abort (); | |
661 | } | |
662 | ||
9f313342 GK |
663 | /* An output file, suitable for definitions, that can see declarations |
664 | made in INPUT_FILE and is linked into every language that uses | |
665 | INPUT_FILE. */ | |
666 | ||
e2500fed GK |
667 | FILE * |
668 | get_output_file_with_visibility (input_file) | |
669 | const char *input_file; | |
670 | { | |
671 | filemap_p fm, fmo; | |
672 | size_t len; | |
673 | const char *basename; | |
674 | ||
675 | /* Do we already know the file? */ | |
676 | for (fm = files; fm; fm = fm->next) | |
677 | if (input_file == fm->input_name) | |
678 | return fm->output; | |
679 | ||
680 | /* No, we'll be creating a new filemap. */ | |
681 | fm = xmalloc (sizeof (*fm)); | |
682 | fm->next = files; | |
683 | files = fm; | |
684 | fm->input_name = input_file; | |
685 | ||
686 | /* Determine the output file name. */ | |
687 | basename = get_file_basename (input_file); | |
688 | ||
689 | len = strlen (basename); | |
690 | if ((len > 2 && memcmp (basename+len-2, ".c", 2) == 0) | |
691 | || (len > 2 && memcmp (basename+len-2, ".y", 2) == 0) | |
692 | || (len > 3 && memcmp (basename+len-3, ".in", 3) == 0)) | |
693 | { | |
694 | char *s; | |
695 | ||
696 | fm->output_name = s = xmalloc (sizeof ("gt-") + len); | |
697 | sprintf (s, "gt-%s", basename); | |
698 | for (; *s != '.'; s++) | |
1f8e4682 | 699 | if (! ISALNUM (*s) && *s != '-') |
e2500fed GK |
700 | *s = '-'; |
701 | memcpy (s, ".h", sizeof (".h")); | |
702 | } | |
703 | else if (strcmp (basename, "c-common.h") == 0) | |
704 | fm->output_name = "gt-c-common.h"; | |
705 | else if (strcmp (basename, "c-tree.h") == 0) | |
706 | fm->output_name = "gt-c-decl.h"; | |
707 | else | |
708 | { | |
709 | size_t i; | |
710 | ||
711 | fm->output_name = "gtype-desc.c"; | |
712 | for (i = 0; i < NUM_BASE_FILES; i++) | |
713 | if (memcmp (basename, lang_names[i], strlen (lang_names[i])) == 0 | |
714 | && basename[strlen(lang_names[i])] == '/') | |
715 | { | |
716 | char *s; | |
717 | ||
718 | s = xmalloc (16); | |
719 | sprintf (s, "gtype-%s.h", lang_names[i]); | |
720 | fm->output_name = s; | |
721 | break; | |
722 | } | |
723 | } | |
724 | ||
725 | /* Look through to see if we've ever seen this output filename before. */ | |
726 | for (fmo = fm->next; fmo; fmo = fmo->next) | |
727 | if (strcmp (fmo->output_name, fm->output_name) == 0) | |
728 | { | |
729 | fm->output = fmo->output; | |
730 | break; | |
731 | } | |
732 | ||
733 | /* If not, create it. */ | |
734 | if (fmo == NULL) | |
735 | { | |
736 | fm->output = create_file (fm->output_name); | |
737 | if (strcmp (fm->output_name, "gtype-desc.c") == 0) | |
738 | { | |
739 | fputs ("#include \"config.h\"\n", fm->output); | |
740 | fputs ("#include \"system.h\"\n", fm->output); | |
741 | fputs ("#include \"varray.h\"\n", fm->output); | |
742 | fputs ("#include \"hashtab.h\"\n", fm->output); | |
743 | fputs ("#include \"bitmap.h\"\n", fm->output); | |
744 | fputs ("#include \"tree.h\"\n", fm->output); | |
745 | fputs ("#include \"rtl.h\"\n", fm->output); | |
746 | fputs ("#include \"function.h\"\n", fm->output); | |
747 | fputs ("#include \"insn-config.h\"\n", fm->output); | |
748 | fputs ("#include \"expr.h\"\n", fm->output); | |
749 | fputs ("#include \"hard-reg-set.h\"\n", fm->output); | |
750 | fputs ("#include \"basic-block.h\"\n", fm->output); | |
751 | fputs ("#include \"cselib.h\"\n", fm->output); | |
752 | fputs ("#include \"insn-addr.h\"\n", fm->output); | |
753 | fputs ("#include \"ssa.h\"\n", fm->output); | |
754 | fputs ("#include \"optabs.h\"\n", fm->output); | |
755 | fputs ("#include \"libfuncs.h\"\n", fm->output); | |
756 | fputs ("#include \"debug.h\"\n", fm->output); | |
757 | fputs ("#include \"ggc.h\"\n", fm->output); | |
758 | } | |
759 | } | |
760 | ||
761 | return fm->output; | |
762 | } | |
763 | ||
9f313342 GK |
764 | /* The name of an output file, suitable for definitions, that can see |
765 | declarations made in INPUT_FILE and is linked into every language | |
766 | that uses INPUT_FILE. */ | |
767 | ||
e2500fed GK |
768 | const char * |
769 | get_output_file_name (input_file) | |
770 | const char *input_file; | |
771 | { | |
772 | filemap_p fm; | |
773 | ||
774 | for (fm = files; fm; fm = fm->next) | |
775 | if (input_file == fm->input_name) | |
776 | return fm->output_name; | |
777 | (void) get_output_file_with_visibility (input_file); | |
778 | return get_output_file_name (input_file); | |
779 | } | |
780 | ||
9f313342 GK |
781 | /* Close all output files and copy them to their final destinations, |
782 | but don't unnecessarily change modification times. */ | |
783 | ||
e2500fed GK |
784 | static void |
785 | close_output_files PARAMS ((void)) | |
786 | { | |
787 | filemap_p fm; | |
788 | struct filemap header; | |
789 | header.next = files; | |
790 | header.output_name = "gtype-desc.h"; | |
791 | header.output = header_file; | |
792 | ||
793 | for (fm = &header; fm; fm = fm->next) | |
794 | { | |
795 | int no_write_p; | |
796 | filemap_p ofm; | |
797 | FILE *newfile; | |
798 | ||
799 | /* Handle each output file once. */ | |
800 | if (fm->output == NULL) | |
801 | continue; | |
802 | ||
803 | for (ofm = fm->next; ofm; ofm = ofm->next) | |
804 | if (fm->output == ofm->output) | |
805 | ofm->output = NULL; | |
806 | ||
807 | /* Compare the output file with the file to be created, avoiding | |
808 | unnecessarily changing timestamps. */ | |
809 | newfile = fopen (fm->output_name, "r"); | |
810 | if (newfile != NULL) | |
811 | { | |
812 | int ch1, ch2; | |
813 | ||
814 | rewind (fm->output); | |
815 | do { | |
816 | ch1 = fgetc (fm->output); | |
817 | ch2 = fgetc (newfile); | |
818 | } while (ch1 != EOF && ch1 == ch2); | |
819 | ||
820 | fclose (newfile); | |
821 | ||
822 | no_write_p = ch1 == ch2; | |
823 | } | |
824 | else | |
825 | no_write_p = 0; | |
826 | ||
827 | /* Nothing interesting to do. Close the output file. */ | |
828 | if (no_write_p) | |
829 | { | |
830 | fclose (fm->output); | |
831 | continue; | |
832 | } | |
833 | ||
834 | newfile = fopen (fm->output_name, "w"); | |
835 | if (newfile == NULL) | |
836 | { | |
837 | perror ("opening output file"); | |
838 | exit (1); | |
839 | } | |
840 | { | |
841 | int ch; | |
842 | rewind (fm->output); | |
843 | while ((ch = fgetc (fm->output)) != EOF) | |
844 | fputc (ch, newfile); | |
845 | } | |
846 | fclose (newfile); | |
847 | fclose (fm->output); | |
848 | } | |
849 | } | |
850 | \f | |
851 | struct flist { | |
852 | struct flist *next; | |
853 | int started_p; | |
854 | const char *name; | |
855 | FILE *f; | |
856 | }; | |
857 | ||
858 | static void output_escaped_param PARAMS ((FILE *, const char *, const char *, | |
859 | const char *, const char *, | |
860 | struct fileloc *)); | |
861 | static void write_gc_structure_fields | |
862 | PARAMS ((FILE *, type_p, const char *, const char *, options_p, | |
863 | int, struct fileloc *, lang_bitmap, type_p)); | |
864 | static void write_gc_marker_routine_for_structure PARAMS ((type_p, type_p)); | |
865 | static void write_gc_types PARAMS ((type_p structures, type_p param_structs)); | |
866 | static void put_mangled_filename PARAMS ((FILE *, const char *)); | |
867 | static void finish_root_table PARAMS ((struct flist *flp, const char *pfx, | |
868 | const char *tname, const char *lastname, | |
869 | const char *name)); | |
870 | static void write_gc_root PARAMS ((FILE *, pair_p, type_p, const char *, int, | |
871 | struct fileloc *, const char *)); | |
872 | static void write_gc_roots PARAMS ((pair_p)); | |
873 | ||
874 | static int gc_counter; | |
875 | ||
9f313342 GK |
876 | /* Print PARAM to OF processing escapes. VAL references the current object, |
877 | PREV_VAL the object containing the current object, ONAME is the name | |
878 | of the option and LINE is used to print error messages. */ | |
879 | ||
e2500fed GK |
880 | static void |
881 | output_escaped_param (of, param, val, prev_val, oname, line) | |
882 | FILE *of; | |
883 | const char *param; | |
884 | const char *val; | |
885 | const char *prev_val; | |
886 | const char *oname; | |
887 | struct fileloc *line; | |
888 | { | |
889 | const char *p; | |
890 | ||
891 | for (p = param; *p; p++) | |
892 | if (*p != '%') | |
893 | fputc (*p, of); | |
894 | else if (*++p == 'h') | |
895 | fprintf (of, "(%s)", val); | |
896 | else if (*p == '0') | |
897 | fputs ("(*x)", of); | |
898 | else if (*p == '1') | |
899 | fprintf (of, "(%s)", prev_val); | |
900 | else | |
901 | error_at_line (line, "`%s' option contains bad escape %c%c", | |
902 | oname, '%', *p); | |
903 | } | |
904 | ||
9f313342 GK |
905 | /* Write out code to OF which marks the fields of S. VAL references |
906 | the current object, PREV_VAL the object containing the current | |
907 | object, OPTS is a list of options to apply, INDENT is the current | |
908 | indentation level, LINE is used to print error messages, BITMAP | |
909 | indicates which languages to print the structure for, and PARAM is | |
910 | the current parameter (from an enclosing param_is option). */ | |
911 | ||
e2500fed GK |
912 | static void |
913 | write_gc_structure_fields (of, s, val, prev_val, opts, indent, line, bitmap, | |
914 | param) | |
915 | FILE *of; | |
916 | type_p s; | |
917 | const char *val; | |
918 | const char *prev_val; | |
919 | options_p opts; | |
920 | int indent; | |
921 | struct fileloc *line; | |
922 | lang_bitmap bitmap; | |
923 | type_p param; | |
924 | { | |
925 | pair_p f; | |
926 | int tagcounter = -1; | |
927 | ||
928 | if (! s->u.s.line.file) | |
929 | error_at_line (line, "incomplete structure `%s'", s->u.s.tag); | |
930 | else if ((s->u.s.bitmap & bitmap) != bitmap) | |
931 | { | |
932 | error_at_line (line, "structure defined for mismatching languages"); | |
933 | error_at_line (&s->u.s.line, "one structure defined here"); | |
934 | } | |
935 | ||
936 | if (s->kind == TYPE_UNION) | |
937 | { | |
938 | const char *tagexpr = NULL; | |
939 | options_p oo; | |
940 | ||
941 | tagcounter = ++gc_counter; | |
942 | for (oo = opts; oo; oo = oo->next) | |
943 | if (strcmp (oo->name, "desc") == 0) | |
944 | tagexpr = (const char *)oo->info; | |
945 | if (tagexpr == NULL) | |
946 | { | |
947 | tagexpr = "1"; | |
948 | error_at_line (line, "missing `desc' option"); | |
949 | } | |
950 | ||
951 | fprintf (of, "%*s{\n", indent, ""); | |
952 | indent += 2; | |
953 | fprintf (of, "%*sunsigned int tag%d = (", indent, "", tagcounter); | |
954 | output_escaped_param (of, tagexpr, val, prev_val, "desc", line); | |
955 | fputs (");\n", of); | |
956 | } | |
957 | ||
958 | for (f = s->u.s.fields; f; f = f->next) | |
959 | { | |
960 | const char *tagid = NULL; | |
961 | const char *length = NULL; | |
962 | const char *special = NULL; | |
963 | int skip_p = 0; | |
964 | int always_p = 0; | |
965 | int maybe_undef_p = 0; | |
966 | int use_param_p = 0; | |
967 | options_p oo; | |
968 | type_p t = f->type; | |
969 | ||
970 | if (t->kind == TYPE_SCALAR | |
971 | || (t->kind == TYPE_ARRAY | |
972 | && t->u.a.p->kind == TYPE_SCALAR)) | |
973 | continue; | |
974 | ||
975 | for (oo = f->opt; oo; oo = oo->next) | |
976 | if (strcmp (oo->name, "length") == 0) | |
977 | length = (const char *)oo->info; | |
978 | else if (strcmp (oo->name, "maybe_undef") == 0) | |
979 | maybe_undef_p = 1; | |
980 | else if (strcmp (oo->name, "tag") == 0) | |
981 | tagid = (const char *)oo->info; | |
982 | else if (strcmp (oo->name, "special") == 0) | |
983 | special = (const char *)oo->info; | |
984 | else if (strcmp (oo->name, "skip") == 0) | |
985 | skip_p = 1; | |
986 | else if (strcmp (oo->name, "always") == 0) | |
987 | always_p = 1; | |
988 | else if (strcmp (oo->name, "desc") == 0 && UNION_P (t)) | |
989 | ; | |
990 | else if (strcmp (oo->name, "descbits") == 0 && UNION_P (t)) | |
991 | ; | |
992 | else if (strcmp (oo->name, "param_is") == 0) | |
993 | ; | |
994 | else if (strcmp (oo->name, "use_param") == 0) | |
995 | use_param_p = 1; | |
996 | else | |
997 | error_at_line (&f->line, "unknown field option `%s'\n", oo->name); | |
998 | ||
999 | if (skip_p) | |
1000 | continue; | |
1001 | ||
1002 | if (use_param_p) | |
1003 | { | |
1004 | if (param != NULL) | |
1005 | { | |
1006 | type_p t1; | |
1007 | type_p nt = param; | |
1008 | int arraycount = 0; | |
1009 | ||
1010 | for (t1 = t; t->kind == TYPE_ARRAY; t = t->u.a.p) | |
1011 | arraycount++; | |
1012 | for (; t->kind == TYPE_POINTER; t = t->u.p) | |
1013 | nt = create_pointer (nt); | |
1014 | while (arraycount-- > 0) | |
1015 | nt = create_array (nt, t->u.a.len); | |
1016 | t = nt; | |
1017 | } | |
1018 | else if (s->kind == TYPE_UNION && ! always_p && tagid) | |
1019 | ; | |
1020 | else | |
1021 | error_at_line (&f->line, "no parameter defined"); | |
1022 | } | |
1023 | ||
1024 | if (maybe_undef_p | |
1025 | && (t->kind != TYPE_POINTER | |
1026 | || t->u.p->kind != TYPE_STRUCT)) | |
1027 | error_at_line (&f->line, | |
1028 | "field `%s' has invalid option `maybe_undef_p'\n", | |
1029 | f->name); | |
1030 | if (s->kind == TYPE_UNION && ! always_p ) | |
1031 | { | |
1032 | if (! tagid) | |
1033 | { | |
1034 | error_at_line (&f->line, "field `%s' has no tag", f->name); | |
1035 | continue; | |
1036 | } | |
1037 | fprintf (of, "%*sif (tag%d == (%s)) {\n", indent, "", | |
1038 | tagcounter, tagid); | |
1039 | indent += 2; | |
1040 | } | |
1041 | ||
1042 | switch (t->kind) | |
1043 | { | |
1044 | case TYPE_STRING: | |
1045 | /* Do nothing; strings go in the string pool. */ | |
1046 | break; | |
1047 | ||
1048 | case TYPE_LANG_STRUCT: | |
1049 | { | |
1050 | type_p ti; | |
1051 | for (ti = t->u.s.lang_struct; ti; ti = ti->next) | |
1052 | if (ti->u.s.bitmap & bitmap) | |
1053 | { | |
1054 | t = ti; | |
1055 | break; | |
1056 | } | |
1057 | if (ti == NULL) | |
1058 | { | |
1059 | error_at_line (&f->line, | |
1060 | "structure not defined for this language"); | |
1061 | break; | |
1062 | } | |
1063 | } | |
1064 | /* Fall through... */ | |
1065 | case TYPE_STRUCT: | |
1066 | case TYPE_UNION: | |
1067 | { | |
1068 | char *newval; | |
1069 | ||
1070 | newval = xmalloc (strlen (val) + sizeof (".") + strlen (f->name)); | |
1071 | sprintf (newval, "%s.%s", val, f->name); | |
1072 | write_gc_structure_fields (of, t, newval, val, f->opt, indent, | |
1073 | &f->line, bitmap, param); | |
1074 | free (newval); | |
1075 | break; | |
1076 | } | |
1077 | ||
1078 | case TYPE_POINTER: | |
1079 | if (! length) | |
1080 | { | |
1081 | if (maybe_undef_p | |
1082 | && t->u.p->u.s.line.file == NULL) | |
1083 | fprintf (of, "%*sif (%s.%s) abort();\n", indent, "", | |
1084 | val, f->name); | |
1085 | else if (UNION_OR_STRUCT_P (t->u.p)) | |
1086 | fprintf (of, "%*sgt_ggc_m_%s (%s.%s);\n", indent, "", | |
1087 | t->u.p->u.s.tag, val, f->name); | |
1088 | else if (t->u.p->kind == TYPE_PARAM_STRUCT) | |
1089 | fprintf (of, "%*sgt_ggc_mm_%d%s_%s (%s.%s);\n", indent, "", | |
1090 | (int) strlen (t->u.p->u.param_struct.param->u.s.tag), | |
1091 | t->u.p->u.param_struct.param->u.s.tag, | |
1092 | t->u.p->u.param_struct.stru->u.s.tag, | |
1093 | val, f->name); | |
1094 | else | |
1095 | error_at_line (&f->line, "field `%s' is pointer to scalar", | |
1096 | f->name); | |
1097 | break; | |
1098 | } | |
1099 | else if (t->u.p->kind == TYPE_SCALAR | |
1100 | || t->u.p->kind == TYPE_STRING) | |
1101 | fprintf (of, "%*sggc_mark (%s.%s);\n", indent, "", | |
1102 | val, f->name); | |
1103 | else | |
1104 | { | |
1105 | int loopcounter = ++gc_counter; | |
1106 | ||
1107 | fprintf (of, "%*sif (%s.%s != NULL) {\n", indent, "", | |
1108 | val, f->name); | |
1109 | indent += 2; | |
1110 | fprintf (of, "%*ssize_t i%d;\n", indent, "", loopcounter); | |
1111 | fprintf (of, "%*sggc_set_mark (%s.%s);\n", indent, "", | |
1112 | val, f->name); | |
1113 | fprintf (of, "%*sfor (i%d = 0; i%d < (", indent, "", | |
1114 | loopcounter, loopcounter); | |
1115 | output_escaped_param (of, length, val, prev_val, "length", line); | |
1116 | fprintf (of, "); i%d++) {\n", loopcounter); | |
1117 | indent += 2; | |
1118 | switch (t->u.p->kind) | |
1119 | { | |
1120 | case TYPE_STRUCT: | |
1121 | case TYPE_UNION: | |
1122 | { | |
1123 | char *newval; | |
1124 | ||
1125 | newval = xmalloc (strlen (val) + 8 + strlen (f->name)); | |
1126 | sprintf (newval, "%s.%s[i%d]", val, f->name, loopcounter); | |
1127 | write_gc_structure_fields (of, t->u.p, newval, val, | |
1128 | f->opt, indent, &f->line, | |
1129 | bitmap, param); | |
1130 | free (newval); | |
1131 | break; | |
1132 | } | |
1133 | case TYPE_POINTER: | |
1134 | if (UNION_OR_STRUCT_P (t->u.p->u.p)) | |
1135 | fprintf (of, "%*sgt_ggc_m_%s (%s.%s[i%d]);\n", indent, "", | |
1136 | t->u.p->u.p->u.s.tag, val, f->name, | |
1137 | loopcounter); | |
1138 | else | |
1139 | error_at_line (&f->line, | |
1140 | "field `%s' is array of pointer to scalar", | |
1141 | f->name); | |
1142 | break; | |
1143 | default: | |
1144 | error_at_line (&f->line, | |
1145 | "field `%s' is array of unimplemented type", | |
1146 | f->name); | |
1147 | break; | |
1148 | } | |
1149 | indent -= 2; | |
1150 | fprintf (of, "%*s}\n", indent, ""); | |
1151 | indent -= 2; | |
1152 | fprintf (of, "%*s}\n", indent, ""); | |
1153 | } | |
1154 | break; | |
1155 | ||
1156 | case TYPE_ARRAY: | |
1157 | { | |
1158 | int loopcounter = ++gc_counter; | |
1159 | type_p ta; | |
1160 | int i; | |
1161 | ||
1162 | if (! length && | |
1163 | (strcmp (t->u.a.len, "0") == 0 | |
1164 | || strcmp (t->u.a.len, "1") == 0)) | |
1165 | error_at_line (&f->line, | |
1166 | "field `%s' is array of size %s", | |
1167 | f->name, t->u.a.len); | |
1168 | ||
1169 | /* Arrays of scalars can be ignored. */ | |
1170 | for (ta = t; ta->kind == TYPE_ARRAY; ta = ta->u.a.p) | |
1171 | ; | |
1172 | if (ta->kind == TYPE_SCALAR | |
1173 | || ta->kind == TYPE_STRING) | |
1174 | break; | |
1175 | ||
1176 | fprintf (of, "%*s{\n", indent, ""); | |
1177 | indent += 2; | |
1178 | ||
1179 | if (special != NULL && strcmp (special, "tree_exp") == 0) | |
1180 | { | |
1181 | fprintf (of, "%*sconst size_t tree_exp_size = (", | |
1182 | indent, ""); | |
1183 | output_escaped_param (of, length, val, prev_val, | |
1184 | "length", line); | |
1185 | fputs (");\n", of); | |
1186 | ||
1187 | length = "first_rtl_op (TREE_CODE ((tree)&%h))"; | |
1188 | } | |
1189 | ||
1190 | for (ta = t, i = 0; ta->kind == TYPE_ARRAY; ta = ta->u.a.p, i++) | |
1191 | { | |
1192 | fprintf (of, "%*ssize_t i%d_%d;\n", | |
1193 | indent, "", loopcounter, i); | |
1194 | fprintf (of, "%*sconst size_t ilimit%d_%d = (", | |
1195 | indent, "", loopcounter, i); | |
1196 | if (i == 0 && length != NULL) | |
1197 | output_escaped_param (of, length, val, prev_val, | |
1198 | "length", line); | |
1199 | else | |
1200 | fputs (ta->u.a.len, of); | |
1201 | fputs (");\n", of); | |
1202 | } | |
1203 | ||
1204 | for (ta = t, i = 0; ta->kind == TYPE_ARRAY; ta = ta->u.a.p, i++) | |
1205 | { | |
1206 | fprintf (of, | |
1207 | "%*sfor (i%d_%d = 0; i%d_%d < ilimit%d_%d; i%d_%d++) {\n", | |
1208 | indent, "", loopcounter, i, loopcounter, i, | |
1209 | loopcounter, i, loopcounter, i); | |
1210 | indent += 2; | |
1211 | } | |
1212 | ||
1213 | if (ta->kind == TYPE_POINTER | |
1214 | && (ta->u.p->kind == TYPE_STRUCT | |
1215 | || ta->u.p->kind == TYPE_UNION)) | |
1216 | { | |
1217 | fprintf (of, "%*sgt_ggc_m_%s (%s.%s", | |
1218 | indent, "", ta->u.p->u.s.tag, val, f->name); | |
1219 | for (ta = t, i = 0; | |
1220 | ta->kind == TYPE_ARRAY; | |
1221 | ta = ta->u.a.p, i++) | |
1222 | fprintf (of, "[i%d_%d]", loopcounter, i); | |
1223 | fputs (");\n", of); | |
1224 | } | |
1225 | else if (ta->kind == TYPE_STRUCT || ta->kind == TYPE_UNION) | |
1226 | { | |
1227 | char *newval; | |
1228 | int len; | |
1229 | ||
1230 | len = strlen (val) + strlen (f->name) + 2; | |
1231 | for (ta = t; ta->kind == TYPE_ARRAY; ta = ta->u.a.p) | |
1232 | len += sizeof ("[i_]") + 2*6; | |
1233 | ||
1234 | newval = xmalloc (len); | |
1235 | sprintf (newval, "%s.%s", val, f->name); | |
1236 | for (ta = t, i = 0; | |
1237 | ta->kind == TYPE_ARRAY; | |
1238 | ta = ta->u.a.p, i++) | |
1239 | sprintf (newval + strlen (newval), "[i%d_%d]", | |
1240 | loopcounter, i); | |
1241 | write_gc_structure_fields (of, t->u.p, newval, val, | |
1242 | f->opt, indent, &f->line, bitmap, | |
1243 | param); | |
1244 | free (newval); | |
1245 | } | |
1246 | else if (ta->kind == TYPE_POINTER && ta->u.p->kind == TYPE_SCALAR | |
1247 | && use_param_p && param == NULL) | |
1248 | fprintf (of, "%*sabort();\n", indent, ""); | |
1249 | else | |
1250 | error_at_line (&f->line, | |
1251 | "field `%s' is array of unimplemented type", | |
1252 | f->name); | |
1253 | for (ta = t, i = 0; ta->kind == TYPE_ARRAY; ta = ta->u.a.p, i++) | |
1254 | { | |
1255 | indent -= 2; | |
1256 | fprintf (of, "%*s}\n", indent, ""); | |
1257 | } | |
1258 | ||
1259 | if (special != NULL && strcmp (special, "tree_exp") == 0) | |
1260 | { | |
1261 | fprintf (of, | |
1262 | "%*sfor (; i%d_0 < tree_exp_size; i%d_0++)\n", | |
1263 | indent, "", loopcounter, loopcounter); | |
1264 | fprintf (of, "%*s gt_ggc_m_rtx_def (%s.%s[i%d_0]);\n", | |
1265 | indent, "", val, f->name, loopcounter); | |
1266 | special = NULL; | |
1267 | } | |
1268 | ||
1269 | indent -= 2; | |
1270 | fprintf (of, "%*s}\n", indent, ""); | |
1271 | break; | |
1272 | } | |
1273 | ||
1274 | default: | |
1275 | error_at_line (&f->line, | |
1276 | "field `%s' is unimplemented type", | |
1277 | f->name); | |
1278 | break; | |
1279 | } | |
1280 | ||
1281 | if (s->kind == TYPE_UNION && ! always_p ) | |
1282 | { | |
1283 | indent -= 2; | |
1284 | fprintf (of, "%*s}\n", indent, ""); | |
1285 | } | |
1286 | if (special) | |
1287 | error_at_line (&f->line, "unhandled special `%s'", special); | |
1288 | } | |
1289 | if (s->kind == TYPE_UNION) | |
1290 | { | |
1291 | indent -= 2; | |
1292 | fprintf (of, "%*s}\n", indent, ""); | |
1293 | } | |
1294 | } | |
1295 | ||
9f313342 GK |
1296 | /* Write out a marker routine for S. PARAM is the parameter from an |
1297 | enclosing PARAM_IS option. */ | |
1298 | ||
e2500fed GK |
1299 | static void |
1300 | write_gc_marker_routine_for_structure (s, param) | |
1301 | type_p s; | |
1302 | type_p param; | |
1303 | { | |
1304 | FILE *f; | |
1305 | if (param == NULL) | |
1306 | f = get_output_file_with_visibility (s->u.s.line.file); | |
1307 | else | |
1308 | f = get_output_file_with_visibility (param->u.s.line.file); | |
1309 | ||
1310 | fputc ('\n', f); | |
1311 | fputs ("void\n", f); | |
1312 | if (param == NULL) | |
1313 | fprintf (f, "gt_ggc_mx_%s (x_p)\n", s->u.s.tag); | |
1314 | else | |
1315 | fprintf (f, "gt_ggc_mm_%d%s_%s (x_p)\n", (int) strlen (param->u.s.tag), | |
1316 | param->u.s.tag, s->u.s.tag); | |
1317 | fputs (" void *x_p;\n", f); | |
1318 | fputs ("{\n", f); | |
1319 | fprintf (f, " %s %s * const x = (%s %s *)x_p;\n", | |
1320 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag, | |
1321 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag); | |
1322 | fputs (" if (! ggc_test_and_set_mark (x))\n", f); | |
1323 | fputs (" return;\n", f); | |
1324 | ||
1325 | gc_counter = 0; | |
1326 | write_gc_structure_fields (f, s, "(*x)", "not valid postage", | |
1327 | s->u.s.opt, 2, &s->u.s.line, s->u.s.bitmap, | |
1328 | param); | |
1329 | ||
1330 | fputs ("}\n", f); | |
1331 | } | |
9f313342 GK |
1332 | |
1333 | /* Write out marker routines for STRUCTURES and PARAM_STRUCTS. */ | |
e2500fed GK |
1334 | |
1335 | static void | |
1336 | write_gc_types (structures, param_structs) | |
1337 | type_p structures; | |
1338 | type_p param_structs; | |
1339 | { | |
1340 | type_p s; | |
1341 | ||
1342 | fputs ("\n/* GC marker procedures. */\n", header_file); | |
1343 | for (s = structures; s; s = s->next) | |
1344 | if (s->gc_used == GC_POINTED_TO | |
1345 | || s->gc_used == GC_MAYBE_POINTED_TO) | |
1346 | { | |
1347 | options_p opt; | |
1348 | ||
1349 | if (s->gc_used == GC_MAYBE_POINTED_TO | |
1350 | && s->u.s.line.file == NULL) | |
1351 | continue; | |
1352 | ||
1353 | fprintf (header_file, | |
1354 | "#define gt_ggc_m_%s(X) do { \\\n", s->u.s.tag); | |
1355 | fprintf (header_file, | |
1356 | " if (X != NULL) gt_ggc_mx_%s (X);\\\n", s->u.s.tag); | |
1357 | fprintf (header_file, | |
1358 | " } while (0)\n"); | |
1359 | ||
1360 | for (opt = s->u.s.opt; opt; opt = opt->next) | |
1361 | if (strcmp (opt->name, "ptr_alias") == 0) | |
1362 | { | |
1363 | type_p t = (type_p) opt->info; | |
1364 | if (t->kind == TYPE_STRUCT | |
1365 | || t->kind == TYPE_UNION | |
1366 | || t->kind == TYPE_LANG_STRUCT) | |
1367 | fprintf (header_file, | |
1368 | "#define gt_ggc_mx_%s gt_ggc_mx_%s\n", | |
1369 | s->u.s.tag, t->u.s.tag); | |
1370 | else | |
1371 | error_at_line (&s->u.s.line, | |
1372 | "structure alias is not a structure"); | |
1373 | break; | |
1374 | } | |
1375 | if (opt) | |
1376 | continue; | |
1377 | ||
1378 | /* Declare the marker procedure only once. */ | |
1379 | fprintf (header_file, | |
1380 | "extern void gt_ggc_mx_%s PARAMS ((void *));\n", | |
1381 | s->u.s.tag); | |
1382 | ||
1383 | if (s->u.s.line.file == NULL) | |
1384 | { | |
1385 | fprintf (stderr, "warning: structure `%s' used but not defined\n", | |
1386 | s->u.s.tag); | |
1387 | continue; | |
1388 | } | |
1389 | ||
1390 | if (s->kind == TYPE_LANG_STRUCT) | |
1391 | { | |
1392 | type_p ss; | |
1393 | for (ss = s->u.s.lang_struct; ss; ss = ss->next) | |
1394 | write_gc_marker_routine_for_structure (ss, NULL); | |
1395 | } | |
1396 | else | |
1397 | write_gc_marker_routine_for_structure (s, NULL); | |
1398 | } | |
1399 | ||
1400 | for (s = param_structs; s; s = s->next) | |
1401 | if (s->gc_used == GC_POINTED_TO) | |
1402 | { | |
1403 | type_p param = s->u.param_struct.param; | |
1404 | type_p stru = s->u.param_struct.stru; | |
1405 | ||
1406 | if (param->kind != TYPE_STRUCT && param->kind != TYPE_UNION | |
1407 | && param->kind != TYPE_LANG_STRUCT) | |
1408 | { | |
1409 | error_at_line (&s->u.param_struct.line, | |
1410 | "unsupported parameter type"); | |
1411 | continue; | |
1412 | } | |
1413 | ||
1414 | /* Declare the marker procedure. */ | |
1415 | fprintf (header_file, | |
1416 | "extern void gt_ggc_mm_%d%s_%s PARAMS ((void *));\n", | |
1417 | (int) strlen (param->u.s.tag), param->u.s.tag, | |
1418 | stru->u.s.tag); | |
1419 | ||
1420 | if (stru->u.s.line.file == NULL) | |
1421 | { | |
1422 | fprintf (stderr, "warning: structure `%s' used but not defined\n", | |
1423 | s->u.s.tag); | |
1424 | continue; | |
1425 | } | |
1426 | ||
1427 | if (stru->kind == TYPE_LANG_STRUCT) | |
1428 | { | |
1429 | type_p ss; | |
1430 | for (ss = stru->u.s.lang_struct; ss; ss = ss->next) | |
1431 | write_gc_marker_routine_for_structure (ss, param); | |
1432 | } | |
1433 | else | |
1434 | write_gc_marker_routine_for_structure (stru, param); | |
1435 | } | |
1436 | } | |
1437 | ||
9f313342 GK |
1438 | /* Mangle FN and print it to F. */ |
1439 | ||
e2500fed GK |
1440 | static void |
1441 | put_mangled_filename (f, fn) | |
1442 | FILE *f; | |
1443 | const char *fn; | |
1444 | { | |
1445 | const char *name = get_output_file_name (fn); | |
1446 | for (; *name != 0; name++) | |
1f8e4682 | 1447 | if (ISALNUM (*name)) |
e2500fed GK |
1448 | fputc (*name, f); |
1449 | else | |
1450 | fputc ('_', f); | |
1451 | } | |
1452 | ||
9f313342 GK |
1453 | /* Finish off the currently-created root tables in FLP. PFX, TNAME, |
1454 | LASTNAME, and NAME are all strings to insert in various places in | |
1455 | the resulting code. */ | |
1456 | ||
e2500fed GK |
1457 | static void |
1458 | finish_root_table (flp, pfx, lastname, tname, name) | |
1459 | struct flist *flp; | |
1460 | const char *pfx; | |
1461 | const char *tname; | |
1462 | const char *lastname; | |
1463 | const char *name; | |
1464 | { | |
1465 | struct flist *fli2; | |
1466 | unsigned started_bitmap = 0; | |
1467 | ||
1468 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
1469 | if (fli2->started_p) | |
1470 | { | |
1471 | fprintf (fli2->f, " %s\n", lastname); | |
1472 | fputs ("};\n\n", fli2->f); | |
1473 | } | |
1474 | ||
1475 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
1476 | if (fli2->started_p) | |
1477 | { | |
1478 | lang_bitmap bitmap = get_base_file_bitmap (fli2->name); | |
1479 | int fnum; | |
1480 | ||
1481 | for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1) | |
1482 | if (bitmap & 1) | |
1483 | { | |
1484 | fprintf (base_files[fnum], | |
1485 | "extern const struct %s gt_ggc_%s_", | |
1486 | tname, pfx); | |
1487 | put_mangled_filename (base_files[fnum], fli2->name); | |
1488 | fputs ("[];\n", base_files[fnum]); | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | for (fli2 = flp; fli2; fli2 = fli2->next) | |
1493 | if (fli2->started_p) | |
1494 | { | |
1495 | lang_bitmap bitmap = get_base_file_bitmap (fli2->name); | |
1496 | int fnum; | |
1497 | ||
1498 | fli2->started_p = 0; | |
1499 | ||
1500 | for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1) | |
1501 | if (bitmap & 1) | |
1502 | { | |
1503 | if (! (started_bitmap & (1 << fnum))) | |
1504 | { | |
1505 | fprintf (base_files [fnum], | |
1506 | "const struct %s * const %s[] = {\n", | |
1507 | tname, name); | |
1508 | started_bitmap |= 1 << fnum; | |
1509 | } | |
1510 | fprintf (base_files[fnum], " gt_ggc_%s_", pfx); | |
1511 | put_mangled_filename (base_files[fnum], fli2->name); | |
1512 | fputs (",\n", base_files[fnum]); | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | { | |
1517 | unsigned bitmap; | |
1518 | int fnum; | |
1519 | ||
1520 | for (bitmap = started_bitmap, fnum = 0; bitmap != 0; fnum++, bitmap >>= 1) | |
1521 | if (bitmap & 1) | |
1522 | { | |
1523 | fputs (" NULL\n", base_files[fnum]); | |
1524 | fputs ("};\n\n", base_files[fnum]); | |
1525 | } | |
1526 | } | |
1527 | } | |
1528 | ||
9f313342 GK |
1529 | /* Write out to F the table entry and any marker routines needed to |
1530 | mark NAME as TYPE. The original variable is V, at LINE. | |
1531 | HAS_LENGTH is nonzero iff V was a variable-length array. IF_MARKED | |
1532 | is nonzero iff we are building the root table for hash table caches. */ | |
1533 | ||
e2500fed GK |
1534 | static void |
1535 | write_gc_root (f, v, type, name, has_length, line, if_marked) | |
1536 | FILE *f; | |
1537 | pair_p v; | |
1538 | type_p type; | |
1539 | const char *name; | |
1540 | int has_length; | |
1541 | struct fileloc *line; | |
1542 | const char *if_marked; | |
1543 | { | |
1544 | switch (type->kind) | |
1545 | { | |
1546 | case TYPE_STRUCT: | |
1547 | { | |
1548 | pair_p fld; | |
1549 | for (fld = type->u.s.fields; fld; fld = fld->next) | |
1550 | { | |
1551 | int skip_p = 0; | |
1552 | const char *desc = NULL; | |
1553 | options_p o; | |
1554 | ||
1555 | for (o = fld->opt; o; o = o->next) | |
1556 | if (strcmp (o->name, "skip") == 0) | |
1557 | skip_p = 1; | |
1558 | else if (strcmp (o->name, "desc") == 0) | |
1559 | desc = (const char *)o->info; | |
1560 | else | |
1561 | error_at_line (line, | |
1562 | "field `%s' of global `%s' has unknown option `%s'", | |
1563 | fld->name, name, o->name); | |
1564 | ||
1565 | if (skip_p) | |
1566 | continue; | |
1567 | else if (desc && fld->type->kind == TYPE_UNION) | |
1568 | { | |
1569 | pair_p validf = NULL; | |
1570 | pair_p ufld; | |
1571 | ||
1572 | for (ufld = fld->type->u.s.fields; ufld; ufld = ufld->next) | |
1573 | { | |
1574 | const char *tag = NULL; | |
1575 | options_p oo; | |
1576 | ||
1577 | for (oo = ufld->opt; oo; oo = oo->next) | |
1578 | if (strcmp (oo->name, "tag") == 0) | |
1579 | tag = (const char *)oo->info; | |
1580 | if (tag == NULL || strcmp (tag, desc) != 0) | |
1581 | continue; | |
1582 | if (validf != NULL) | |
1583 | error_at_line (line, | |
1584 | "both `%s.%s.%s' and `%s.%s.%s' have tag `%s'", | |
1585 | name, fld->name, validf->name, | |
1586 | name, fld->name, ufld->name, | |
1587 | tag); | |
1588 | validf = ufld; | |
1589 | } | |
1590 | if (validf != NULL) | |
1591 | { | |
1592 | char *newname; | |
1593 | newname = xmalloc (strlen (name) + 3 + strlen (fld->name) | |
1594 | + strlen (validf->name)); | |
1595 | sprintf (newname, "%s.%s.%s", | |
1596 | name, fld->name, validf->name); | |
1597 | write_gc_root (f, v, validf->type, newname, 0, line, | |
1598 | if_marked); | |
1599 | free (newname); | |
1600 | } | |
1601 | } | |
1602 | else if (desc) | |
1603 | error_at_line (line, | |
1604 | "global `%s.%s' has `desc' option but is not union", | |
1605 | name, fld->name); | |
1606 | else | |
1607 | { | |
1608 | char *newname; | |
1609 | newname = xmalloc (strlen (name) + 2 + strlen (fld->name)); | |
1610 | sprintf (newname, "%s.%s", name, fld->name); | |
1611 | write_gc_root (f, v, fld->type, newname, 0, line, if_marked); | |
1612 | free (newname); | |
1613 | } | |
1614 | } | |
1615 | } | |
1616 | break; | |
1617 | ||
1618 | case TYPE_ARRAY: | |
1619 | { | |
1620 | char *newname; | |
1621 | newname = xmalloc (strlen (name) + 4); | |
1622 | sprintf (newname, "%s[0]", name); | |
1623 | write_gc_root (f, v, type->u.a.p, newname, has_length, line, if_marked); | |
1624 | free (newname); | |
1625 | } | |
1626 | break; | |
1627 | ||
1628 | case TYPE_POINTER: | |
1629 | { | |
1630 | type_p ap, tp; | |
1631 | ||
1632 | fputs (" {\n", f); | |
1633 | fprintf (f, " &%s,\n", name); | |
1634 | fputs (" 1", f); | |
1635 | ||
1636 | for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p) | |
1637 | if (ap->u.a.len[0]) | |
1638 | fprintf (f, " * (%s)", ap->u.a.len); | |
1639 | else if (ap == v->type) | |
1640 | fprintf (f, " * (sizeof (%s) / sizeof (%s[0]))", | |
1641 | v->name, v->name); | |
1642 | fputs (",\n", f); | |
1643 | fprintf (f, " sizeof (%s", v->name); | |
1644 | for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p) | |
1645 | fputs ("[0]", f); | |
1646 | fputs ("),\n", f); | |
1647 | ||
1648 | tp = type->u.p; | |
1649 | ||
1650 | if (! has_length && UNION_OR_STRUCT_P (tp)) | |
1651 | { | |
1652 | fprintf (f, " >_ggc_mx_%s\n", tp->u.s.tag); | |
1653 | } | |
1654 | else if (! has_length && tp->kind == TYPE_PARAM_STRUCT) | |
1655 | { | |
1656 | fprintf (f, " >_ggc_mm_%d%s_%s", | |
1657 | (int) strlen (tp->u.param_struct.param->u.s.tag), | |
1658 | tp->u.param_struct.param->u.s.tag, | |
1659 | tp->u.param_struct.stru->u.s.tag); | |
1660 | } | |
1661 | else if (has_length | |
afb0f770 | 1662 | && (tp->kind == TYPE_POINTER || UNION_OR_STRUCT_P (tp))) |
e2500fed GK |
1663 | { |
1664 | fprintf (f, " >_ggc_ma_%s", name); | |
1665 | } | |
1666 | else | |
1667 | { | |
1668 | error_at_line (line, | |
1669 | "global `%s' is pointer to unimplemented type", | |
1670 | name); | |
1671 | } | |
1672 | if (if_marked) | |
1673 | fprintf (f, ",\n &%s", if_marked); | |
1674 | fputs ("\n },\n", f); | |
1675 | } | |
1676 | break; | |
1677 | ||
1678 | case TYPE_SCALAR: | |
1679 | case TYPE_STRING: | |
1680 | break; | |
1681 | ||
1682 | default: | |
1683 | error_at_line (line, | |
1684 | "global `%s' is unimplemented type", | |
1685 | name); | |
1686 | } | |
1687 | } | |
1688 | ||
9f313342 GK |
1689 | /* Output a table describing the locations and types of VARIABLES. */ |
1690 | ||
e2500fed GK |
1691 | static void |
1692 | write_gc_roots (variables) | |
1693 | pair_p variables; | |
1694 | { | |
1695 | pair_p v; | |
1696 | struct flist *flp = NULL; | |
1697 | ||
1698 | for (v = variables; v; v = v->next) | |
1699 | { | |
1700 | FILE *f = get_output_file_with_visibility (v->line.file); | |
1701 | struct flist *fli; | |
1702 | const char *length = NULL; | |
1703 | int deletable_p = 0; | |
1704 | options_p o; | |
1705 | ||
1706 | for (o = v->opt; o; o = o->next) | |
1707 | if (strcmp (o->name, "length") == 0) | |
1708 | length = (const char *)o->info; | |
1709 | else if (strcmp (o->name, "deletable") == 0) | |
1710 | deletable_p = 1; | |
1711 | else if (strcmp (o->name, "param_is") == 0) | |
1712 | ; | |
1713 | else if (strcmp (o->name, "if_marked") == 0) | |
1714 | ; | |
1715 | else | |
1716 | error_at_line (&v->line, | |
1717 | "global `%s' has unknown option `%s'", | |
1718 | v->name, o->name); | |
1719 | ||
1720 | for (fli = flp; fli; fli = fli->next) | |
1721 | if (fli->f == f) | |
1722 | break; | |
1723 | if (fli == NULL) | |
1724 | { | |
1725 | fli = xmalloc (sizeof (*fli)); | |
1726 | fli->f = f; | |
1727 | fli->next = flp; | |
1728 | fli->started_p = 0; | |
1729 | fli->name = v->line.file; | |
1730 | flp = fli; | |
1731 | ||
1732 | fputs ("\n/* GC roots. */\n\n", f); | |
1733 | } | |
1734 | ||
1735 | if (! deletable_p | |
1736 | && length | |
1737 | && v->type->kind == TYPE_POINTER | |
1738 | && (v->type->u.p->kind == TYPE_POINTER | |
1739 | || v->type->u.p->kind == TYPE_STRUCT)) | |
1740 | { | |
1741 | fprintf (f, "static void gt_ggc_ma_%s PARAMS ((void *));\n", | |
1742 | v->name); | |
1743 | fprintf (f, "static void\ngt_ggc_ma_%s (x_p)\n void *x_p;\n", | |
1744 | v->name); | |
1745 | fputs ("{\n", f); | |
1746 | fputs (" size_t i;\n", f); | |
1747 | ||
1748 | if (v->type->u.p->kind == TYPE_POINTER) | |
1749 | { | |
1750 | type_p s = v->type->u.p->u.p; | |
1751 | ||
1752 | fprintf (f, " %s %s ** const x = (%s %s **)x_p;\n", | |
1753 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag, | |
1754 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag); | |
1755 | fputs (" if (ggc_test_and_set_mark (x))\n", f); | |
1756 | fprintf (f, " for (i = 0; i < (%s); i++)\n", length); | |
1757 | if (s->kind != TYPE_STRUCT && s->kind != TYPE_UNION) | |
1758 | { | |
1759 | error_at_line (&v->line, | |
1760 | "global `%s' has unsupported ** type", | |
1761 | v->name); | |
1762 | continue; | |
1763 | } | |
1764 | ||
1765 | fprintf (f, " gt_ggc_m_%s (x[i]);\n", s->u.s.tag); | |
1766 | } | |
1767 | else | |
1768 | { | |
1769 | type_p s = v->type->u.p; | |
1770 | ||
1771 | fprintf (f, " %s %s * const x = (%s %s *)x_p;\n", | |
1772 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag, | |
1773 | s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag); | |
1774 | fputs (" if (ggc_test_and_set_mark (x))\n", f); | |
1775 | fprintf (f, " for (i = 0; i < (%s); i++)\n", length); | |
1776 | fputs (" {\n", f); | |
1777 | write_gc_structure_fields (f, s, "x[i]", "x[i]", | |
1778 | v->opt, 8, &v->line, s->u.s.bitmap, | |
1779 | NULL); | |
1780 | fputs (" }\n", f); | |
1781 | } | |
1782 | ||
1783 | fputs ("}\n\n", f); | |
1784 | } | |
1785 | } | |
1786 | ||
1787 | for (v = variables; v; v = v->next) | |
1788 | { | |
1789 | FILE *f = get_output_file_with_visibility (v->line.file); | |
1790 | struct flist *fli; | |
1791 | int skip_p = 0; | |
1792 | int length_p = 0; | |
1793 | options_p o; | |
1794 | ||
1795 | for (o = v->opt; o; o = o->next) | |
1796 | if (strcmp (o->name, "length") == 0) | |
1797 | length_p = 1; | |
1798 | else if (strcmp (o->name, "deletable") == 0 | |
1799 | || strcmp (o->name, "if_marked") == 0) | |
1800 | skip_p = 1; | |
1801 | ||
1802 | if (skip_p) | |
1803 | continue; | |
1804 | ||
1805 | for (fli = flp; fli; fli = fli->next) | |
1806 | if (fli->f == f) | |
1807 | break; | |
1808 | if (! fli->started_p) | |
1809 | { | |
1810 | fli->started_p = 1; | |
1811 | ||
1812 | fputs ("const struct ggc_root_tab gt_ggc_r_", f); | |
1813 | put_mangled_filename (f, v->line.file); | |
1814 | fputs ("[] = {\n", f); | |
1815 | } | |
1816 | ||
1817 | write_gc_root (f, v, v->type, v->name, length_p, &v->line, NULL); | |
1818 | } | |
1819 | ||
1820 | finish_root_table (flp, "r", "LAST_GGC_ROOT_TAB", "ggc_root_tab", | |
1821 | "gt_ggc_rtab"); | |
1822 | ||
1823 | for (v = variables; v; v = v->next) | |
1824 | { | |
1825 | FILE *f = get_output_file_with_visibility (v->line.file); | |
1826 | struct flist *fli; | |
1827 | int skip_p = 1; | |
1828 | options_p o; | |
1829 | ||
1830 | for (o = v->opt; o; o = o->next) | |
1831 | if (strcmp (o->name, "deletable") == 0) | |
1832 | skip_p = 0; | |
1833 | else if (strcmp (o->name, "if_marked") == 0) | |
1834 | skip_p = 1; | |
1835 | ||
1836 | if (skip_p) | |
1837 | continue; | |
1838 | ||
1839 | for (fli = flp; fli; fli = fli->next) | |
1840 | if (fli->f == f) | |
1841 | break; | |
1842 | if (! fli->started_p) | |
1843 | { | |
1844 | fli->started_p = 1; | |
1845 | ||
1846 | fputs ("const struct ggc_root_tab gt_ggc_rd_", f); | |
1847 | put_mangled_filename (f, v->line.file); | |
1848 | fputs ("[] = {\n", f); | |
1849 | } | |
1850 | ||
1851 | fprintf (f, " { &%s, 1, sizeof (%s), NULL },\n", | |
1852 | v->name, v->name); | |
1853 | } | |
1854 | ||
1855 | finish_root_table (flp, "rd", "LAST_GGC_ROOT_TAB", "ggc_root_tab", | |
1856 | "gt_ggc_deletable_rtab"); | |
1857 | ||
1858 | for (v = variables; v; v = v->next) | |
1859 | { | |
1860 | FILE *f = get_output_file_with_visibility (v->line.file); | |
1861 | struct flist *fli; | |
1862 | const char *if_marked = NULL; | |
1863 | int length_p = 0; | |
1864 | options_p o; | |
1865 | ||
1866 | for (o = v->opt; o; o = o->next) | |
1867 | if (strcmp (o->name, "length") == 0) | |
1868 | length_p = 1; | |
1869 | else if (strcmp (o->name, "if_marked") == 0) | |
1870 | if_marked = (const char *) o->info; | |
1871 | ||
1872 | if (if_marked == NULL) | |
1873 | continue; | |
1874 | ||
1875 | if (v->type->kind != TYPE_POINTER | |
1876 | || v->type->u.p->kind != TYPE_PARAM_STRUCT | |
1877 | || v->type->u.p->u.param_struct.stru != find_structure ("htab", 0)) | |
1878 | { | |
1879 | error_at_line (&v->line, "if_marked option used but not hash table"); | |
1880 | continue; | |
1881 | } | |
1882 | ||
1883 | for (fli = flp; fli; fli = fli->next) | |
1884 | if (fli->f == f) | |
1885 | break; | |
1886 | if (! fli->started_p) | |
1887 | { | |
1888 | fli->started_p = 1; | |
1889 | ||
1890 | fputs ("const struct ggc_cache_tab gt_ggc_rc_", f); | |
1891 | put_mangled_filename (f, v->line.file); | |
1892 | fputs ("[] = {\n", f); | |
1893 | } | |
1894 | ||
1895 | write_gc_root (f, v, create_pointer (v->type->u.p->u.param_struct.param), | |
1896 | v->name, length_p, &v->line, if_marked); | |
1897 | } | |
1898 | ||
1899 | finish_root_table (flp, "rc", "LAST_GGC_CACHE_TAB", "ggc_cache_tab", | |
1900 | "gt_ggc_cache_rtab"); | |
1901 | } | |
1902 | ||
1903 | \f | |
1904 | extern int main PARAMS ((int argc, char **argv)); | |
1905 | int | |
1906 | main(argc, argv) | |
1907 | int argc; | |
1908 | char **argv; | |
1909 | { | |
1910 | int i; | |
1911 | static struct fileloc pos = { __FILE__, __LINE__ }; | |
1912 | ||
1913 | do_typedef ("CUMULATIVE_ARGS", | |
1914 | create_scalar_type ("CUMULATIVE_ARGS", | |
1915 | strlen ("CUMULATIVE_ARGS")), | |
1916 | &pos); | |
1917 | do_typedef ("REAL_VALUE_TYPE", | |
1918 | create_scalar_type ("REAL_VALUE_TYPE", | |
1919 | strlen ("REAL_VALUE_TYPE")), | |
1920 | &pos); | |
1921 | do_typedef ("PTR", create_pointer (create_scalar_type ("void", | |
1922 | strlen ("void"))), | |
1923 | &pos); | |
1924 | ||
1925 | for (i = 1; i < argc; i++) | |
1926 | parse_file (argv[i]); | |
1927 | ||
1928 | if (hit_error != 0) | |
1929 | exit (1); | |
1930 | ||
1931 | set_gc_used (variables); | |
1932 | ||
1933 | open_base_files (); | |
1934 | write_gc_types (structures, param_structs); | |
1935 | write_gc_roots (variables); | |
1936 | close_output_files (); | |
1937 | ||
1938 | return (hit_error != 0); | |
1939 | } |