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f5167986 ILT |
1 | /* ieee.c -- Write out IEEE-695 debugging information. |
2 | Copyright (C) 1996 Free Software Foundation, Inc. | |
3 | Written by Ian Lance Taylor <ian@cygnus.com>. | |
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 | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | /* This file reads and writes IEEE-695 debugging information. */ | |
23 | ||
24 | #include <stdio.h> | |
25 | #include <assert.h> | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "ieee.h" | |
29 | #include "bucomm.h" | |
30 | #include "libiberty.h" | |
31 | #include "debug.h" | |
32 | #include "budbg.h" | |
33 | ||
34 | /* This structure holds an entry on the block stack. */ | |
35 | ||
36 | struct ieee_block | |
37 | { | |
38 | /* The kind of block. */ | |
39 | int kind; | |
40 | /* The source file name, for a BB5 block. */ | |
41 | const char *filename; | |
42 | }; | |
43 | ||
44 | /* This structure is the block stack. */ | |
45 | ||
46 | #define BLOCKSTACK_SIZE (16) | |
47 | ||
48 | struct ieee_blockstack | |
49 | { | |
50 | /* The stack pointer. */ | |
51 | struct ieee_block *bsp; | |
52 | /* The stack. */ | |
53 | struct ieee_block stack[BLOCKSTACK_SIZE]; | |
54 | }; | |
55 | ||
56 | /* This structure holds information for a variable. */ | |
57 | ||
58 | struct ieee_var | |
59 | { | |
60 | /* Start of name. */ | |
61 | const char *name; | |
62 | /* Length of name. */ | |
63 | unsigned long namlen; | |
64 | /* Type. */ | |
65 | debug_type type; | |
66 | }; | |
67 | ||
68 | /* This structure holds all the variables. */ | |
69 | ||
70 | struct ieee_vars | |
71 | { | |
72 | /* Number of slots allocated. */ | |
73 | unsigned int alloc; | |
74 | /* Variables. */ | |
75 | struct ieee_var *vars; | |
76 | }; | |
77 | ||
78 | /* This structure holds information for a type. We need this because | |
79 | we don't want to represent bitfields as real types. */ | |
80 | ||
81 | struct ieee_type | |
82 | { | |
83 | /* Type. */ | |
84 | debug_type type; | |
85 | /* If this is a bitfield, this is the size in bits. If this is not | |
86 | a bitfield, this is zero. */ | |
87 | unsigned long bitsize; | |
88 | /* If this is a function type ('x' or 'X') this is the return type. */ | |
89 | debug_type return_type; | |
90 | }; | |
91 | ||
92 | /* This structure holds all the type information. */ | |
93 | ||
94 | struct ieee_types | |
95 | { | |
96 | /* Number of slots allocated. */ | |
97 | unsigned int alloc; | |
98 | /* Types. */ | |
99 | struct ieee_type *types; | |
100 | /* Builtin types. */ | |
101 | #define BUILTIN_TYPE_COUNT (60) | |
102 | debug_type builtins[BUILTIN_TYPE_COUNT]; | |
103 | }; | |
104 | ||
105 | static void ieee_error | |
106 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte *, const char *)); | |
107 | static void ieee_eof PARAMS ((bfd *)); | |
108 | static char *savestring PARAMS ((const char *, unsigned long)); | |
109 | static boolean ieee_read_number | |
110 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
111 | bfd_vma *)); | |
112 | static boolean ieee_read_optional_number | |
113 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
114 | bfd_vma *, boolean *)); | |
115 | static boolean ieee_read_id | |
116 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
117 | const char **, unsigned long *)); | |
118 | static boolean ieee_read_optional_id | |
119 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
120 | const char **, unsigned long *, boolean *)); | |
121 | static boolean ieee_read_expression | |
122 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
123 | bfd_vma *)); | |
124 | static debug_type ieee_builtin_type | |
125 | PARAMS ((PTR, bfd *, struct ieee_types *, const bfd_byte *, | |
126 | const bfd_byte *, unsigned int)); | |
127 | static boolean ieee_read_type_index | |
128 | PARAMS ((PTR, bfd *, struct ieee_types *, const bfd_byte *, | |
129 | const bfd_byte **, const bfd_byte *, debug_type *)); | |
130 | static int ieee_regno_to_gen PARAMS ((bfd *, int)); | |
131 | static boolean parse_ieee_bb | |
132 | PARAMS ((PTR, bfd *, struct ieee_types *, struct ieee_blockstack *, | |
133 | const bfd_byte *, const bfd_byte **, const bfd_byte *)); | |
134 | static boolean parse_ieee_be | |
135 | PARAMS ((PTR, bfd *, struct ieee_blockstack *, const bfd_byte *, | |
136 | const bfd_byte **, const bfd_byte *)); | |
137 | static boolean parse_ieee_nn | |
138 | PARAMS ((PTR, bfd *, struct ieee_vars *, const bfd_byte *, | |
139 | const bfd_byte **, const bfd_byte *)); | |
140 | static boolean parse_ieee_ty | |
141 | PARAMS ((PTR, bfd *, struct ieee_types *, struct ieee_vars *, | |
142 | const bfd_byte *, const bfd_byte **, const bfd_byte *)); | |
143 | static boolean parse_ieee_atn | |
144 | PARAMS ((PTR, bfd *, struct ieee_types *, struct ieee_vars *, int, | |
145 | const bfd_byte *, const bfd_byte **, const bfd_byte *)); | |
146 | static boolean ieee_require_asn | |
147 | PARAMS ((bfd *, const bfd_byte *, const bfd_byte **, const bfd_byte *, | |
148 | bfd_vma *)); | |
149 | ||
150 | /* Report an error in the IEEE debugging information. */ | |
151 | ||
152 | static void | |
153 | ieee_error (abfd, bytes, p, s) | |
154 | bfd *abfd; | |
155 | const bfd_byte *bytes; | |
156 | const bfd_byte *p; | |
157 | const char *s; | |
158 | { | |
159 | if (p != NULL) | |
160 | fprintf (stderr, "%s: 0x%lx: %s (0x%x)\n", bfd_get_filename (abfd), | |
161 | (unsigned long) (p - bytes), s, *p); | |
162 | else | |
163 | fprintf (stderr, "%s: %s\n", bfd_get_filename (abfd), s); | |
164 | } | |
165 | ||
166 | /* Report an unexpected EOF in the IEEE debugging information. */ | |
167 | ||
168 | static void | |
169 | ieee_eof (abfd) | |
170 | bfd *abfd; | |
171 | { | |
172 | ieee_error (abfd, (const bfd_byte *) NULL, (const bfd_byte *) NULL, | |
173 | "unexpected end of debugging information"); | |
174 | } | |
175 | ||
176 | /* Save a string in memory. */ | |
177 | ||
178 | static char * | |
179 | savestring (start, len) | |
180 | const char *start; | |
181 | unsigned long len; | |
182 | { | |
183 | char *ret; | |
184 | ||
185 | ret = (char *) xmalloc (len + 1); | |
186 | memcpy (ret, start, len); | |
187 | ret[len] = '\0'; | |
188 | return ret; | |
189 | } | |
190 | ||
191 | /* Read a number which must be present in an IEEE file. */ | |
192 | ||
193 | static boolean | |
194 | ieee_read_number (abfd, bytes, pp, pend, pv) | |
195 | bfd *abfd; | |
196 | const bfd_byte *bytes; | |
197 | const bfd_byte **pp; | |
198 | const bfd_byte *pend; | |
199 | bfd_vma *pv; | |
200 | { | |
201 | return ieee_read_optional_number (abfd, bytes, pp, pend, pv, | |
202 | (boolean *) NULL); | |
203 | } | |
204 | ||
205 | /* Read a number in an IEEE file. If ppresent is not NULL, the number | |
206 | need not be there. */ | |
207 | ||
208 | static boolean | |
209 | ieee_read_optional_number (abfd, bytes, pp, pend, pv, ppresent) | |
210 | bfd *abfd; | |
211 | const bfd_byte *bytes; | |
212 | const bfd_byte **pp; | |
213 | const bfd_byte *pend; | |
214 | bfd_vma *pv; | |
215 | boolean *ppresent; | |
216 | { | |
217 | ieee_record_enum_type b; | |
218 | ||
219 | if (*pp >= pend) | |
220 | { | |
221 | if (ppresent != NULL) | |
222 | { | |
223 | *ppresent = false; | |
224 | return true; | |
225 | } | |
226 | ieee_eof (abfd); | |
227 | return false; | |
228 | } | |
229 | ||
230 | b = (ieee_record_enum_type) **pp; | |
231 | ++*pp; | |
232 | ||
233 | if (b <= ieee_number_end_enum) | |
234 | { | |
235 | *pv = (bfd_vma) b; | |
236 | if (ppresent != NULL) | |
237 | *ppresent = true; | |
238 | return true; | |
239 | } | |
240 | ||
241 | if (b >= ieee_number_repeat_start_enum && b <= ieee_number_repeat_end_enum) | |
242 | { | |
243 | unsigned int i; | |
244 | ||
245 | i = (int) b - (int) ieee_number_repeat_start_enum; | |
246 | if (*pp + i - 1 >= pend) | |
247 | { | |
248 | ieee_eof (abfd); | |
249 | return false; | |
250 | } | |
251 | ||
252 | *pv = 0; | |
253 | for (; i > 0; i--) | |
254 | { | |
255 | *pv <<= 8; | |
256 | *pv += **pp; | |
257 | ++*pp; | |
258 | } | |
259 | ||
260 | if (ppresent != NULL) | |
261 | *ppresent = true; | |
262 | ||
263 | return true; | |
264 | } | |
265 | ||
266 | if (ppresent != NULL) | |
267 | { | |
268 | --*pp; | |
269 | *ppresent = false; | |
270 | return true; | |
271 | } | |
272 | ||
273 | ieee_error (abfd, bytes, *pp - 1, "invalid number"); | |
274 | return false; | |
275 | } | |
276 | ||
277 | /* Read a required string from an IEEE file. */ | |
278 | ||
279 | static boolean | |
280 | ieee_read_id (abfd, bytes, pp, pend, pname, pnamlen) | |
281 | bfd *abfd; | |
282 | const bfd_byte *bytes; | |
283 | const bfd_byte **pp; | |
284 | const bfd_byte *pend; | |
285 | const char **pname; | |
286 | unsigned long *pnamlen; | |
287 | { | |
288 | return ieee_read_optional_id (abfd, bytes, pp, pend, pname, pnamlen, | |
289 | (boolean *) NULL); | |
290 | } | |
291 | ||
292 | /* Read a string from an IEEE file. If ppresent is not NULL, the | |
293 | string is optional. */ | |
294 | ||
295 | static boolean | |
296 | ieee_read_optional_id (abfd, bytes, pp, pend, pname, pnamlen, ppresent) | |
297 | bfd *abfd; | |
298 | const bfd_byte *bytes; | |
299 | const bfd_byte **pp; | |
300 | const bfd_byte *pend; | |
301 | const char **pname; | |
302 | unsigned long *pnamlen; | |
303 | boolean *ppresent; | |
304 | { | |
305 | bfd_byte b; | |
306 | unsigned long len; | |
307 | ||
308 | if (*pp >= pend) | |
309 | { | |
310 | ieee_eof (abfd); | |
311 | return false; | |
312 | } | |
313 | ||
314 | b = **pp; | |
315 | ++*pp; | |
316 | ||
317 | if (b <= 0x7f) | |
318 | len = b; | |
319 | else if ((ieee_record_enum_type) b == ieee_extension_length_1_enum) | |
320 | { | |
321 | len = **pp; | |
322 | ++*pp; | |
323 | } | |
324 | else if ((ieee_record_enum_type) b == ieee_extension_length_2_enum) | |
325 | { | |
326 | len = (**pp << 8) + (*pp)[1]; | |
327 | *pp += 2; | |
328 | } | |
329 | else | |
330 | { | |
331 | if (ppresent != NULL) | |
332 | { | |
333 | --*pp; | |
334 | *ppresent = false; | |
335 | return true; | |
336 | } | |
337 | ieee_error (abfd, bytes, *pp - 1, "invalid string length"); | |
338 | return false; | |
339 | } | |
340 | ||
341 | if ((unsigned long) (pend - *pp) < len) | |
342 | { | |
343 | ieee_eof (abfd); | |
344 | return false; | |
345 | } | |
346 | ||
347 | *pname = (const char *) *pp; | |
348 | *pnamlen = len; | |
349 | *pp += len; | |
350 | ||
351 | if (ppresent != NULL) | |
352 | *ppresent = true; | |
353 | ||
354 | return true; | |
355 | } | |
356 | ||
357 | /* Read an expression from an IEEE file. Since this code is only used | |
358 | to parse debugging information, I haven't bothered to write a full | |
359 | blown IEEE expression parser. I've only thrown in the things I've | |
360 | seen in debugging information. This can be easily extended if | |
361 | necessary. */ | |
362 | ||
363 | static boolean | |
364 | ieee_read_expression (abfd, bytes, pp, pend, pv) | |
365 | bfd *abfd; | |
366 | const bfd_byte *bytes; | |
367 | const bfd_byte **pp; | |
368 | const bfd_byte *pend; | |
369 | bfd_vma *pv; | |
370 | { | |
371 | const bfd_byte *expr_start; | |
372 | #define EXPR_STACK_SIZE (10) | |
373 | bfd_vma expr_stack[EXPR_STACK_SIZE]; | |
374 | bfd_vma *esp; | |
375 | ||
376 | expr_start = *pp; | |
377 | ||
378 | esp = expr_stack; | |
379 | ||
380 | while (1) | |
381 | { | |
382 | const bfd_byte *start; | |
383 | bfd_vma val; | |
384 | boolean present; | |
385 | ieee_record_enum_type c; | |
386 | ||
387 | start = *pp; | |
388 | ||
389 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &val, &present)) | |
390 | return false; | |
391 | ||
392 | if (present) | |
393 | { | |
394 | if (esp - expr_stack >= EXPR_STACK_SIZE) | |
395 | { | |
396 | ieee_error (abfd, bytes, start, "expression stack overflow"); | |
397 | return false; | |
398 | } | |
399 | *esp++ = val; | |
400 | continue; | |
401 | } | |
402 | ||
403 | c = (ieee_record_enum_type) **pp; | |
404 | ||
405 | if (c >= ieee_module_beginning_enum) | |
406 | break; | |
407 | ||
408 | ++*pp; | |
409 | ||
410 | if (c == ieee_comma) | |
411 | break; | |
412 | ||
413 | switch (c) | |
414 | { | |
415 | default: | |
416 | ieee_error (abfd, bytes, start, | |
417 | "unsupported IEEE expression operator"); | |
418 | break; | |
419 | ||
420 | case ieee_variable_R_enum: | |
421 | { | |
422 | bfd_vma indx; | |
423 | asection *s; | |
424 | ||
425 | if (! ieee_read_number (abfd, bytes, pp, pend, &indx)) | |
426 | return false; | |
427 | for (s = abfd->sections; s != NULL; s = s->next) | |
428 | if ((bfd_vma) s->target_index == indx) | |
429 | break; | |
430 | if (s == NULL) | |
431 | { | |
432 | ieee_error (abfd, bytes, start, "unknown section"); | |
433 | return false; | |
434 | } | |
435 | ||
436 | if (esp - expr_stack >= EXPR_STACK_SIZE) | |
437 | { | |
438 | ieee_error (abfd, bytes, start, "expression stack overflow"); | |
439 | return false; | |
440 | } | |
441 | ||
442 | *esp++ = bfd_get_section_vma (abfd, s); | |
443 | } | |
444 | break; | |
445 | ||
446 | case ieee_function_plus_enum: | |
447 | case ieee_function_minus_enum: | |
448 | { | |
449 | bfd_vma v1, v2; | |
450 | ||
451 | if (esp - expr_stack < 2) | |
452 | { | |
453 | ieee_error (abfd, bytes, start, "expression stack underflow"); | |
454 | return false; | |
455 | } | |
456 | ||
457 | v1 = *--esp; | |
458 | v2 = *--esp; | |
459 | *esp++ = v1 + v2; | |
460 | } | |
461 | break; | |
462 | } | |
463 | } | |
464 | ||
465 | if (esp - 1 != expr_stack) | |
466 | { | |
467 | ieee_error (abfd, bytes, expr_start, "expression stack mismatch"); | |
468 | return false; | |
469 | } | |
470 | ||
471 | *pv = *--esp; | |
472 | ||
473 | return true; | |
474 | } | |
475 | ||
476 | /* Return an IEEE builtin type. */ | |
477 | ||
478 | static debug_type | |
479 | ieee_builtin_type (dhandle, abfd, types, bytes, p, indx) | |
480 | PTR dhandle; | |
481 | bfd *abfd; | |
482 | struct ieee_types *types; | |
483 | const bfd_byte *bytes; | |
484 | const bfd_byte *p; | |
485 | unsigned int indx; | |
486 | { | |
487 | boolean ptr; | |
488 | debug_type type; | |
489 | const char *name; | |
490 | ||
491 | if (indx < BUILTIN_TYPE_COUNT | |
492 | && types->builtins[indx] != DEBUG_TYPE_NULL) | |
493 | return types->builtins[indx]; | |
494 | ||
495 | ptr = false; | |
496 | switch (indx) | |
497 | { | |
498 | default: | |
499 | ieee_error (abfd, bytes, p, "unknown builtin type"); | |
500 | return NULL; | |
501 | ||
502 | case 32: | |
503 | ptr = true; | |
504 | /* Fall through. */ | |
505 | case 0: | |
506 | type = debug_make_void_type (dhandle); | |
507 | name = NULL; | |
508 | break; | |
509 | ||
510 | case 33: | |
511 | ptr = true; | |
512 | /* Fall through. */ | |
513 | case 1: | |
514 | type = debug_make_void_type (dhandle); | |
515 | name = "void"; | |
516 | break; | |
517 | ||
518 | case 34: | |
519 | ptr = true; | |
520 | /* Fall through. */ | |
521 | case 2: | |
522 | type = debug_make_int_type (dhandle, 1, false); | |
523 | name = "signed char"; | |
524 | break; | |
525 | ||
526 | case 35: | |
527 | ptr = true; | |
528 | /* Fall through. */ | |
529 | case 3: | |
530 | type = debug_make_int_type (dhandle, 1, true); | |
531 | name = "unsigned char"; | |
532 | break; | |
533 | ||
534 | case 36: | |
535 | ptr = true; | |
536 | /* Fall through. */ | |
537 | case 4: | |
538 | type = debug_make_int_type (dhandle, 2, false); | |
539 | name = "signed short int"; | |
540 | break; | |
541 | ||
542 | case 37: | |
543 | ptr = true; | |
544 | /* Fall through. */ | |
545 | case 5: | |
546 | type = debug_make_int_type (dhandle, 2, true); | |
547 | name = "unsigned short int"; | |
548 | break; | |
549 | ||
550 | case 38: | |
551 | ptr = true; | |
552 | /* Fall through. */ | |
553 | case 6: | |
554 | type = debug_make_int_type (dhandle, 4, false); | |
555 | name = "signed long"; | |
556 | break; | |
557 | ||
558 | case 39: | |
559 | ptr = true; | |
560 | /* Fall through. */ | |
561 | case 7: | |
562 | type = debug_make_int_type (dhandle, 4, true); | |
563 | name = "unsigned long"; | |
564 | break; | |
565 | ||
566 | case 40: | |
567 | ptr = true; | |
568 | /* Fall through. */ | |
569 | case 8: | |
570 | type = debug_make_int_type (dhandle, 8, false); | |
571 | name = "signed long long"; | |
572 | break; | |
573 | ||
574 | case 41: | |
575 | ptr = true; | |
576 | /* Fall through. */ | |
577 | case 9: | |
578 | type = debug_make_int_type (dhandle, 8, true); | |
579 | name = "unsigned long long"; | |
580 | break; | |
581 | ||
582 | case 42: | |
583 | ptr = true; | |
584 | /* Fall through. */ | |
585 | case 10: | |
586 | type = debug_make_float_type (dhandle, 4); | |
587 | name = "float"; | |
588 | break; | |
589 | ||
590 | case 43: | |
591 | ptr = true; | |
592 | /* Fall through. */ | |
593 | case 11: | |
594 | type = debug_make_float_type (dhandle, 8); | |
595 | name = "double"; | |
596 | break; | |
597 | ||
598 | case 44: | |
599 | ptr = true; | |
600 | /* Fall through. */ | |
601 | case 12: | |
602 | /* FIXME: The size for this type should depend upon the | |
603 | processor. */ | |
604 | type = debug_make_float_type (dhandle, 12); | |
605 | name = "long double"; | |
606 | break; | |
607 | ||
608 | case 45: | |
609 | ptr = true; | |
610 | /* Fall through. */ | |
611 | case 13: | |
612 | type = debug_make_float_type (dhandle, 16); | |
613 | name = "long long double"; | |
614 | break; | |
615 | ||
616 | case 46: | |
617 | ptr = true; | |
618 | /* Fall through. */ | |
619 | case 14: | |
620 | type = debug_make_array_type (dhandle, | |
621 | ieee_builtin_type (dhandle, abfd, types, | |
622 | bytes, p, 19), | |
623 | ieee_builtin_type (dhandle, abfd, types, | |
624 | bytes, p, 16), | |
625 | 0, -1, true); | |
626 | name = "QUOTED STRING"; | |
627 | break; | |
628 | ||
629 | case 47: | |
630 | ptr = true; | |
631 | /* Fall through. */ | |
632 | case 15: | |
633 | /* FIXME: This should be a code address. */ | |
634 | type = debug_make_int_type (dhandle, 4, true); | |
635 | name = "instruction address"; | |
636 | break; | |
637 | ||
638 | case 48: | |
639 | ptr = true; | |
640 | /* Fall through. */ | |
641 | case 16: | |
642 | /* FIXME: The size for this type should depend upon the | |
643 | processor. */ | |
644 | type = debug_make_int_type (dhandle, 4, false); | |
645 | name = "int"; | |
646 | break; | |
647 | ||
648 | case 49: | |
649 | ptr = true; | |
650 | /* Fall through. */ | |
651 | case 17: | |
652 | /* FIXME: The size for this type should depend upon the | |
653 | processor. */ | |
654 | type = debug_make_int_type (dhandle, 4, true); | |
655 | name = "unsigned"; | |
656 | break; | |
657 | ||
658 | case 50: | |
659 | ptr = true; | |
660 | /* Fall through. */ | |
661 | case 18: | |
662 | /* FIXME: The size for this type should depend upon the | |
663 | processor. */ | |
664 | type = debug_make_int_type (dhandle, 4, true); | |
665 | name = "unsigned int"; | |
666 | break; | |
667 | ||
668 | case 51: | |
669 | ptr = true; | |
670 | /* Fall through. */ | |
671 | case 19: | |
672 | type = debug_make_int_type (dhandle, 1, false); | |
673 | name = "char"; | |
674 | break; | |
675 | ||
676 | case 52: | |
677 | ptr = true; | |
678 | /* Fall through. */ | |
679 | case 20: | |
680 | type = debug_make_int_type (dhandle, 4, false); | |
681 | name = "long"; | |
682 | break; | |
683 | ||
684 | case 53: | |
685 | ptr = true; | |
686 | /* Fall through. */ | |
687 | case 21: | |
688 | type = debug_make_int_type (dhandle, 2, false); | |
689 | name = "short"; | |
690 | break; | |
691 | ||
692 | case 54: | |
693 | ptr = true; | |
694 | /* Fall through. */ | |
695 | case 22: | |
696 | type = debug_make_int_type (dhandle, 2, true); | |
697 | name = "unsigned short"; | |
698 | break; | |
699 | ||
700 | case 55: | |
701 | ptr = true; | |
702 | /* Fall through. */ | |
703 | case 23: | |
704 | type = debug_make_int_type (dhandle, 2, false); | |
705 | name = "short int"; | |
706 | break; | |
707 | ||
708 | case 56: | |
709 | ptr = true; | |
710 | /* Fall through. */ | |
711 | case 24: | |
712 | type = debug_make_int_type (dhandle, 2, false); | |
713 | name = "signed short"; | |
714 | break; | |
715 | ||
716 | case 57: | |
717 | ptr = true; | |
718 | /* Fall through. */ | |
719 | case 25: | |
720 | ieee_error (abfd, bytes, p, "BCD float type not supported"); | |
721 | return false; | |
722 | } | |
723 | ||
724 | if (ptr) | |
725 | type = debug_make_pointer_type (dhandle, type); | |
726 | else if (name != NULL) | |
727 | type = debug_name_type (dhandle, name, type); | |
728 | ||
729 | assert (indx < BUILTIN_TYPE_COUNT); | |
730 | ||
731 | types->builtins[indx] = type; | |
732 | ||
733 | return type; | |
734 | } | |
735 | ||
736 | /* Read a type index and return the corresponding type. */ | |
737 | ||
738 | static boolean | |
739 | ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, ptype) | |
740 | PTR dhandle; | |
741 | bfd *abfd; | |
742 | struct ieee_types *types; | |
743 | const bfd_byte *bytes; | |
744 | const bfd_byte **pp; | |
745 | const bfd_byte *pend; | |
746 | debug_type *ptype; | |
747 | { | |
748 | const bfd_byte *start; | |
749 | bfd_vma indx; | |
750 | ||
751 | start = *pp; | |
752 | ||
753 | if (! ieee_read_number (abfd, bytes, pp, pend, &indx)) | |
754 | return false; | |
755 | ||
756 | if (indx < 256) | |
757 | { | |
758 | *ptype = ieee_builtin_type (dhandle, abfd, types, bytes, start, indx); | |
759 | if (*ptype == NULL) | |
760 | return false; | |
761 | return true; | |
762 | } | |
763 | ||
764 | indx -= 256; | |
765 | if (indx >= types->alloc | |
766 | || types->types[indx].type == DEBUG_TYPE_NULL) | |
767 | { | |
768 | ieee_error (abfd, bytes, start, "undefined type"); | |
769 | return false; | |
770 | } | |
771 | ||
772 | *ptype = types->types[indx].type; | |
773 | ||
774 | return true; | |
775 | } | |
776 | ||
777 | /* Convert a register number in IEEE debugging information into a | |
778 | generic register number. */ | |
779 | ||
780 | static int | |
781 | ieee_regno_to_gen (abfd, r) | |
782 | bfd *abfd; | |
783 | int r; | |
784 | { | |
785 | return r; | |
786 | } | |
787 | ||
788 | /* Parse IEEE debugging information for a file. This is passed the | |
789 | bytes which compose the Debug Information Part of an IEEE file. */ | |
790 | ||
791 | boolean | |
792 | parse_ieee (dhandle, abfd, bytes, len) | |
793 | PTR dhandle; | |
794 | bfd *abfd; | |
795 | const bfd_byte *bytes; | |
796 | bfd_size_type len; | |
797 | { | |
798 | struct ieee_blockstack blockstack; | |
799 | struct ieee_vars vars; | |
800 | struct ieee_types types; | |
801 | unsigned int i; | |
802 | const bfd_byte *p, *pend; | |
803 | ||
804 | blockstack.bsp = blockstack.stack; | |
805 | vars.alloc = 0; | |
806 | vars.vars = NULL; | |
807 | types.alloc = 0; | |
808 | types.types = NULL; | |
809 | for (i = 0; i < BUILTIN_TYPE_COUNT; i++) | |
810 | types.builtins[i] = DEBUG_TYPE_NULL; | |
811 | ||
812 | p = bytes; | |
813 | pend = bytes + len; | |
814 | while (p < pend) | |
815 | { | |
816 | const bfd_byte *record_start; | |
817 | ieee_record_enum_type c; | |
818 | ||
819 | record_start = p; | |
820 | ||
821 | c = (ieee_record_enum_type) *p++; | |
822 | ||
823 | if (c == ieee_at_record_enum) | |
824 | c = (ieee_record_enum_type) (((unsigned int) c << 8) | *p++); | |
825 | ||
826 | if (c <= ieee_number_repeat_end_enum) | |
827 | { | |
828 | ieee_error (abfd, bytes, record_start, "unexpected number"); | |
829 | return false; | |
830 | } | |
831 | ||
832 | switch (c) | |
833 | { | |
834 | default: | |
835 | ieee_error (abfd, bytes, record_start, "unexpected record type"); | |
836 | return false; | |
837 | ||
838 | case ieee_bb_record_enum: | |
839 | if (! parse_ieee_bb (dhandle, abfd, &types, &blockstack, bytes, | |
840 | &p, pend)) | |
841 | return false; | |
842 | break; | |
843 | ||
844 | case ieee_be_record_enum: | |
845 | if (! parse_ieee_be (dhandle, abfd, &blockstack, bytes, &p, pend)) | |
846 | return false; | |
847 | break; | |
848 | ||
849 | case ieee_nn_record: | |
850 | if (! parse_ieee_nn (dhandle, abfd, &vars, bytes, &p, pend)) | |
851 | return false; | |
852 | break; | |
853 | ||
854 | case ieee_ty_record_enum: | |
855 | if (! parse_ieee_ty (dhandle, abfd, &types, &vars, bytes, &p, pend)) | |
856 | return false; | |
857 | break; | |
858 | ||
859 | case ieee_atn_record_enum: | |
860 | if (! parse_ieee_atn (dhandle, abfd, &types, &vars, | |
861 | (blockstack.bsp <= blockstack.stack | |
862 | ? 0 | |
863 | : blockstack.bsp[-1].kind), | |
864 | bytes, &p, pend)) | |
865 | return false; | |
866 | break; | |
867 | } | |
868 | } | |
869 | ||
870 | if (blockstack.bsp != blockstack.stack) | |
871 | { | |
872 | ieee_error (abfd, (const bfd_byte *) NULL, (const bfd_byte *) NULL, | |
873 | "blocks left on stack at end"); | |
874 | return false; | |
875 | } | |
876 | ||
877 | return true; | |
878 | } | |
879 | ||
880 | /* Handle an IEEE BB record. */ | |
881 | ||
882 | static boolean | |
883 | parse_ieee_bb (dhandle, abfd, types, blockstack, bytes, pp, pend) | |
884 | PTR dhandle; | |
885 | bfd *abfd; | |
886 | struct ieee_types *types; | |
887 | struct ieee_blockstack *blockstack; | |
888 | const bfd_byte *bytes; | |
889 | const bfd_byte **pp; | |
890 | const bfd_byte *pend; | |
891 | { | |
892 | const bfd_byte *block_start; | |
893 | bfd_byte b; | |
894 | bfd_vma size; | |
895 | const char *name; | |
896 | unsigned long namlen; | |
897 | char *namcopy; | |
898 | ||
899 | block_start = *pp; | |
900 | ||
901 | b = **pp; | |
902 | ++*pp; | |
903 | ||
904 | if (! ieee_read_number (abfd, bytes, pp, pend, &size) | |
905 | || ! ieee_read_id (abfd, bytes, pp, pend, &name, &namlen)) | |
906 | return false; | |
907 | ||
908 | switch (b) | |
909 | { | |
910 | case 1: | |
911 | /* BB1: Type definitions local to a module. */ | |
912 | namcopy = savestring (name, namlen); | |
913 | if (namcopy == NULL) | |
914 | return false; | |
915 | if (! debug_set_filename (dhandle, namcopy)) | |
916 | return false; | |
917 | break; | |
918 | ||
919 | case 2: | |
920 | /* BB2: Global type definitions. The name is supposed to be | |
921 | empty, but we don't check. */ | |
922 | if (! debug_set_filename (dhandle, "*global*")) | |
923 | return false; | |
924 | break; | |
925 | ||
926 | case 3: | |
927 | /* BB3: High level module block begin. We don't have to do | |
928 | anything here. The name is supposed to be the same as for | |
929 | the BB1, but we don't check. */ | |
930 | break; | |
931 | ||
932 | case 4: | |
933 | /* BB4: Global function. */ | |
934 | { | |
935 | bfd_vma stackspace, typindx, offset; | |
936 | debug_type return_type; | |
937 | ||
938 | if (! ieee_read_number (abfd, bytes, pp, pend, &stackspace) | |
939 | || ! ieee_read_number (abfd, bytes, pp, pend, &typindx) | |
940 | || ! ieee_read_expression (abfd, bytes, pp, pend, &offset)) | |
941 | return false; | |
942 | ||
943 | /* We have no way to record the stack space. FIXME. */ | |
944 | ||
945 | if (typindx < 256) | |
946 | { | |
947 | return_type = ieee_builtin_type (dhandle, abfd, types, bytes, | |
948 | block_start, typindx); | |
949 | if (return_type == NULL) | |
950 | return false; | |
951 | } | |
952 | else | |
953 | { | |
954 | typindx -= 256; | |
955 | if (typindx >= types->alloc | |
956 | || types->types[typindx].type == DEBUG_TYPE_NULL) | |
957 | { | |
958 | ieee_error (abfd, bytes, block_start, "undefined type index"); | |
959 | return false; | |
960 | } | |
961 | return_type = types->types[typindx].return_type; | |
962 | if (return_type == NULL) | |
963 | return_type = types->types[typindx].type; | |
964 | } | |
965 | ||
966 | namcopy = savestring (name, namlen); | |
967 | if (namcopy == NULL) | |
968 | return false; | |
969 | if (! debug_record_function (dhandle, namcopy, return_type, | |
970 | true, offset)) | |
971 | return false; | |
972 | } | |
973 | break; | |
974 | ||
975 | case 5: | |
976 | /* BB5: File name for source line numbers. */ | |
977 | { | |
978 | unsigned int i; | |
979 | ||
980 | /* We ignore the date and time. FIXME. */ | |
981 | for (i = 0; i < 6; i++) | |
982 | { | |
983 | bfd_vma ignore; | |
984 | boolean present; | |
985 | ||
986 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &ignore, | |
987 | &present)) | |
988 | return false; | |
989 | if (! present) | |
990 | break; | |
991 | } | |
992 | ||
993 | namcopy = savestring (name, namlen); | |
994 | if (namcopy == NULL) | |
995 | return false; | |
996 | if (! debug_start_source (dhandle, namcopy)) | |
997 | return false; | |
998 | } | |
999 | break; | |
1000 | ||
1001 | case 6: | |
1002 | /* BB6: Local function or block. */ | |
1003 | { | |
1004 | bfd_vma stackspace, typindx, offset; | |
1005 | ||
1006 | if (! ieee_read_number (abfd, bytes, pp, pend, &stackspace) | |
1007 | || ! ieee_read_number (abfd, bytes, pp, pend, &typindx) | |
1008 | || ! ieee_read_expression (abfd, bytes, pp, pend, &offset)) | |
1009 | return false; | |
1010 | ||
1011 | /* We have no way to record the stack space. FIXME. */ | |
1012 | ||
1013 | if (namlen == 0) | |
1014 | { | |
1015 | if (! debug_start_block (dhandle, offset)) | |
1016 | return false; | |
1017 | /* Change b to indicate that this is a block | |
1018 | rather than a function. */ | |
1019 | b = 0x86; | |
1020 | } | |
1021 | else | |
1022 | { | |
1023 | debug_type return_type; | |
1024 | ||
1025 | if (typindx < 256) | |
1026 | { | |
1027 | return_type = ieee_builtin_type (dhandle, abfd, types, bytes, | |
1028 | block_start, typindx); | |
1029 | if (return_type == NULL) | |
1030 | return false; | |
1031 | } | |
1032 | else | |
1033 | { | |
1034 | typindx -= 256; | |
1035 | if (typindx >= types->alloc | |
1036 | || types->types[typindx].type == DEBUG_TYPE_NULL) | |
1037 | { | |
1038 | ieee_error (abfd, bytes, block_start, | |
1039 | "undefined type index"); | |
1040 | return false; | |
1041 | } | |
1042 | return_type = types->types[typindx].return_type; | |
1043 | if (return_type == NULL) | |
1044 | return_type = types->types[typindx].type; | |
1045 | } | |
1046 | ||
1047 | namcopy = savestring (name, namlen); | |
1048 | if (namcopy == NULL) | |
1049 | return false; | |
1050 | if (! debug_record_function (dhandle, namcopy, return_type, | |
1051 | false, offset)) | |
1052 | return false; | |
1053 | } | |
1054 | } | |
1055 | break; | |
1056 | ||
1057 | case 10: | |
1058 | /* BB10: Assembler module scope. We completely ignore all this | |
1059 | information. FIXME. */ | |
1060 | { | |
1061 | const char *inam, *vstr; | |
1062 | unsigned long inamlen, vstrlen; | |
1063 | bfd_vma tool_type; | |
1064 | boolean present; | |
1065 | unsigned int i; | |
1066 | ||
1067 | if (! ieee_read_id (abfd, bytes, pp, pend, &inam, &inamlen) | |
1068 | || ! ieee_read_number (abfd, bytes, pp, pend, &tool_type) | |
1069 | || ! ieee_read_optional_id (abfd, bytes, pp, pend, &vstr, &vstrlen, | |
1070 | &present)) | |
1071 | return false; | |
1072 | for (i = 0; i < 6; i++) | |
1073 | { | |
1074 | bfd_vma ignore; | |
1075 | ||
1076 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &ignore, | |
1077 | &present)) | |
1078 | return false; | |
1079 | if (! present) | |
1080 | break; | |
1081 | } | |
1082 | } | |
1083 | break; | |
1084 | ||
1085 | case 11: | |
1086 | /* BB11: Module section. We completely ignore all this | |
1087 | information. FIXME. */ | |
1088 | { | |
1089 | bfd_vma sectype, secindx, offset, map; | |
1090 | boolean present; | |
1091 | ||
1092 | if (! ieee_read_number (abfd, bytes, pp, pend, §ype) | |
1093 | || ! ieee_read_number (abfd, bytes, pp, pend, &secindx) | |
1094 | || ! ieee_read_expression (abfd, bytes, pp, pend, &offset) | |
1095 | || ! ieee_read_optional_number (abfd, bytes, pp, pend, &map, | |
1096 | &present)) | |
1097 | return false; | |
1098 | } | |
1099 | break; | |
1100 | ||
1101 | default: | |
1102 | ieee_error (abfd, bytes, block_start, "unknown BB type"); | |
1103 | return false; | |
1104 | } | |
1105 | ||
1106 | ||
1107 | /* Push this block on the block stack. */ | |
1108 | ||
1109 | if (blockstack->bsp >= blockstack->stack + BLOCKSTACK_SIZE) | |
1110 | { | |
1111 | ieee_error (abfd, (const bfd_byte *) NULL, (const bfd_byte *) NULL, | |
1112 | "stack overflow"); | |
1113 | return false; | |
1114 | } | |
1115 | ||
1116 | blockstack->bsp->kind = b; | |
1117 | if (b == 5) | |
1118 | blockstack->bsp->filename = namcopy; | |
1119 | ++blockstack->bsp; | |
1120 | ||
1121 | return true; | |
1122 | } | |
1123 | ||
1124 | /* Handle an IEEE BE record. */ | |
1125 | ||
1126 | static boolean | |
1127 | parse_ieee_be (dhandle, abfd, blockstack, bytes, pp, pend) | |
1128 | PTR dhandle; | |
1129 | bfd *abfd; | |
1130 | struct ieee_blockstack *blockstack; | |
1131 | const bfd_byte *bytes; | |
1132 | const bfd_byte **pp; | |
1133 | const bfd_byte *pend; | |
1134 | { | |
1135 | bfd_vma offset; | |
1136 | ||
1137 | if (blockstack->bsp <= blockstack->stack) | |
1138 | { | |
1139 | ieee_error (abfd, bytes, *pp, "stack underflow"); | |
1140 | return false; | |
1141 | } | |
1142 | --blockstack->bsp; | |
1143 | ||
1144 | switch (blockstack->bsp->kind) | |
1145 | { | |
1146 | case 4: | |
1147 | case 6: | |
1148 | if (! ieee_read_expression (abfd, bytes, pp, pend, &offset)) | |
1149 | return false; | |
1150 | if (! debug_end_function (dhandle, offset)) | |
1151 | return false; | |
1152 | break; | |
1153 | ||
1154 | case 0x86: | |
1155 | /* This is BE6 when BB6 started a block rather than a local | |
1156 | function. */ | |
1157 | if (! ieee_read_expression (abfd, bytes, pp, pend, &offset)) | |
1158 | return false; | |
1159 | if (! debug_end_block (dhandle, offset)) | |
1160 | return false; | |
1161 | break; | |
1162 | ||
1163 | case 5: | |
1164 | /* When we end a BB5, we look up the stack for the last BB5, if | |
1165 | there is one, so that we can call debug_start_source. */ | |
1166 | if (blockstack->bsp > blockstack->stack) | |
1167 | { | |
1168 | struct ieee_block *bl; | |
1169 | ||
1170 | bl = blockstack->bsp; | |
1171 | do | |
1172 | { | |
1173 | --bl; | |
1174 | if (bl->kind == 5) | |
1175 | { | |
1176 | if (! debug_start_source (dhandle, bl->filename)) | |
1177 | return false; | |
1178 | break; | |
1179 | } | |
1180 | } | |
1181 | while (bl != blockstack->stack); | |
1182 | } | |
1183 | break; | |
1184 | ||
1185 | case 11: | |
1186 | if (! ieee_read_expression (abfd, bytes, pp, pend, &offset)) | |
1187 | return false; | |
1188 | /* We just ignore the module size. FIXME. */ | |
1189 | break; | |
1190 | ||
1191 | default: | |
1192 | /* Other block types do not have any trailing information. */ | |
1193 | break; | |
1194 | } | |
1195 | ||
1196 | return true; | |
1197 | } | |
1198 | ||
1199 | /* Parse an NN record. */ | |
1200 | ||
1201 | static boolean | |
1202 | parse_ieee_nn (dhandle, abfd, vars, bytes, pp, pend) | |
1203 | PTR dhandle; | |
1204 | bfd *abfd; | |
1205 | struct ieee_vars *vars; | |
1206 | const bfd_byte *bytes; | |
1207 | const bfd_byte **pp; | |
1208 | const bfd_byte *pend; | |
1209 | { | |
1210 | const bfd_byte *nn_start; | |
1211 | bfd_vma varindx; | |
1212 | const char *name; | |
1213 | unsigned long namlen; | |
1214 | ||
1215 | nn_start = *pp; | |
1216 | ||
1217 | if (! ieee_read_number (abfd, bytes, pp, pend, &varindx) | |
1218 | || ! ieee_read_id (abfd, bytes, pp, pend, &name, &namlen)) | |
1219 | return false; | |
1220 | ||
1221 | if (varindx < 32) | |
1222 | { | |
1223 | ieee_error (abfd, bytes, nn_start, "illegal variable index"); | |
1224 | return false; | |
1225 | } | |
1226 | varindx -= 32; | |
1227 | ||
1228 | if (varindx >= vars->alloc) | |
1229 | { | |
1230 | unsigned int alloc; | |
1231 | ||
1232 | alloc = vars->alloc; | |
1233 | if (alloc == 0) | |
1234 | alloc = 4; | |
1235 | while (varindx >= alloc) | |
1236 | alloc *= 2; | |
1237 | vars->vars = ((struct ieee_var *) | |
1238 | xrealloc (vars->vars, alloc * sizeof *vars->vars)); | |
1239 | memset (vars->vars + vars->alloc, 0, | |
1240 | (alloc - vars->alloc) * sizeof *vars->vars); | |
1241 | vars->alloc = alloc; | |
1242 | } | |
1243 | ||
1244 | vars->vars[varindx].name = name; | |
1245 | vars->vars[varindx].namlen = namlen; | |
1246 | ||
1247 | return true; | |
1248 | } | |
1249 | ||
1250 | /* Parse a TY record. */ | |
1251 | ||
1252 | static boolean | |
1253 | parse_ieee_ty (dhandle, abfd, types, vars, bytes, pp, pend) | |
1254 | PTR dhandle; | |
1255 | bfd *abfd; | |
1256 | struct ieee_types *types; | |
1257 | struct ieee_vars *vars; | |
1258 | const bfd_byte *bytes; | |
1259 | const bfd_byte **pp; | |
1260 | const bfd_byte *pend; | |
1261 | { | |
1262 | const bfd_byte *ty_start, *ty_var_start, *ty_code_start; | |
1263 | bfd_vma typeindx, varindx, tc; | |
1264 | debug_type type; | |
1265 | boolean tag, typdef; | |
1266 | unsigned long type_bitsize; | |
1267 | debug_type return_type; | |
1268 | ||
1269 | ty_start = *pp; | |
1270 | ||
1271 | if (! ieee_read_number (abfd, bytes, pp, pend, &typeindx)) | |
1272 | return false; | |
1273 | ||
1274 | if (typeindx < 256) | |
1275 | { | |
1276 | ieee_error (abfd, bytes, ty_start, "illegal type index"); | |
1277 | return false; | |
1278 | } | |
1279 | typeindx -= 256; | |
1280 | ||
1281 | if (typeindx >= types->alloc) | |
1282 | { | |
1283 | unsigned int nalloc; | |
1284 | struct ieee_type *t, *tend; | |
1285 | ||
1286 | nalloc = types->alloc; | |
1287 | if (nalloc == 0) | |
1288 | nalloc = 4; | |
1289 | while (typeindx >= nalloc) | |
1290 | nalloc *= 2; | |
1291 | types->types = ((struct ieee_type *) | |
1292 | xrealloc (types->types, nalloc * sizeof *types->types)); | |
1293 | tend = types->types + nalloc; | |
1294 | for (t = types->types + types->alloc; t < tend; t++) | |
1295 | { | |
1296 | t->bitsize = 0; | |
1297 | t->type = DEBUG_TYPE_NULL; | |
1298 | } | |
1299 | types->alloc = nalloc; | |
1300 | } | |
1301 | ||
1302 | if (**pp != 0xce) | |
1303 | { | |
1304 | ieee_error (abfd, bytes, *pp, "unknown TY code"); | |
1305 | return false; | |
1306 | } | |
1307 | ++*pp; | |
1308 | ||
1309 | ty_var_start = *pp; | |
1310 | ||
1311 | if (! ieee_read_number (abfd, bytes, pp, pend, &varindx)) | |
1312 | return false; | |
1313 | ||
1314 | if (varindx < 32) | |
1315 | { | |
1316 | ieee_error (abfd, bytes, ty_var_start, "illegal variable index"); | |
1317 | return false; | |
1318 | } | |
1319 | varindx -= 32; | |
1320 | ||
1321 | if (varindx >= vars->alloc || vars->vars[varindx].name == NULL) | |
1322 | { | |
1323 | ieee_error (abfd, bytes, ty_var_start, "undefined variable in TY"); | |
1324 | return false; | |
1325 | } | |
1326 | ||
1327 | ty_code_start = *pp; | |
1328 | ||
1329 | if (! ieee_read_number (abfd, bytes, pp, pend, &tc)) | |
1330 | return false; | |
1331 | ||
1332 | tag = false; | |
1333 | typdef = false; | |
1334 | type_bitsize = 0; | |
1335 | return_type = DEBUG_TYPE_NULL; | |
1336 | switch (tc) | |
1337 | { | |
1338 | default: | |
1339 | ieee_error (abfd, bytes, ty_code_start, "unknown TY code"); | |
1340 | return false; | |
1341 | ||
1342 | case '!': | |
1343 | /* Unknown type, with size. We treat it as int. FIXME. */ | |
1344 | { | |
1345 | bfd_vma size; | |
1346 | ||
1347 | if (! ieee_read_number (abfd, bytes, pp, pend, &size)) | |
1348 | return false; | |
1349 | type = debug_make_int_type (dhandle, size, false); | |
1350 | } | |
1351 | break; | |
1352 | ||
1353 | case 'A': /* Array. */ | |
1354 | case 'a': /* FORTRAN array in column/row order. FIXME: Not | |
1355 | distinguished from normal array. */ | |
1356 | { | |
1357 | debug_type ele_type; | |
1358 | bfd_vma lower, upper; | |
1359 | ||
1360 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1361 | &ele_type) | |
1362 | || ! ieee_read_number (abfd, bytes, pp, pend, &lower) | |
1363 | || ! ieee_read_number (abfd, bytes, pp, pend, &upper)) | |
1364 | return false; | |
1365 | type = debug_make_array_type (dhandle, ele_type, | |
1366 | debug_make_int_type (dhandle, 4, false), | |
1367 | (bfd_signed_vma) lower, | |
1368 | (bfd_signed_vma) upper, | |
1369 | false); | |
1370 | } | |
1371 | break; | |
1372 | ||
1373 | case 'E': | |
1374 | /* Simple enumeration. */ | |
1375 | { | |
1376 | bfd_vma size; | |
1377 | unsigned int alloc; | |
1378 | const char **names; | |
1379 | unsigned int c; | |
1380 | bfd_signed_vma *vals; | |
1381 | unsigned int i; | |
1382 | ||
1383 | if (! ieee_read_number (abfd, bytes, pp, pend, &size)) | |
1384 | return false; | |
1385 | /* FIXME: we ignore the enumeration size. */ | |
1386 | ||
1387 | alloc = 10; | |
1388 | names = (const char **) xmalloc (alloc * sizeof *names); | |
1389 | memset (names, 0, alloc * sizeof *names); | |
1390 | c = 0; | |
1391 | while (1) | |
1392 | { | |
1393 | const char *name; | |
1394 | unsigned long namlen; | |
1395 | boolean present; | |
1396 | ||
1397 | if (! ieee_read_optional_id (abfd, bytes, pp, pend, &name, | |
1398 | &namlen, &present)) | |
1399 | return false; | |
1400 | if (! present) | |
1401 | break; | |
1402 | ||
1403 | if (c + 1 >= alloc) | |
1404 | { | |
1405 | alloc += 10; | |
1406 | names = ((const char **) | |
1407 | xrealloc (names, alloc * sizeof *names)); | |
1408 | } | |
1409 | ||
1410 | names[c] = savestring (name, namlen); | |
1411 | if (names[c] == NULL) | |
1412 | return false; | |
1413 | ++c; | |
1414 | } | |
1415 | ||
1416 | names[c] = NULL; | |
1417 | ||
1418 | vals = (bfd_signed_vma *) xmalloc (c * sizeof *vals); | |
1419 | for (i = 0; i < c; i++) | |
1420 | vals[i] = i; | |
1421 | ||
1422 | type = debug_make_enum_type (dhandle, names, vals); | |
1423 | tag = true; | |
1424 | } | |
1425 | break; | |
1426 | ||
1427 | case 'G': | |
1428 | /* Struct with bit fields. */ | |
1429 | { | |
1430 | bfd_vma size; | |
1431 | unsigned int alloc; | |
1432 | debug_field *fields; | |
1433 | unsigned int c; | |
1434 | ||
1435 | if (! ieee_read_number (abfd, bytes, pp, pend, &size)) | |
1436 | return false; | |
1437 | ||
1438 | alloc = 10; | |
1439 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); | |
1440 | c = 0; | |
1441 | while (1) | |
1442 | { | |
1443 | const char *name; | |
1444 | unsigned long namlen; | |
1445 | boolean present; | |
1446 | debug_type ftype; | |
1447 | bfd_vma bitpos, bitsize; | |
1448 | ||
1449 | if (! ieee_read_optional_id (abfd, bytes, pp, pend, &name, | |
1450 | &namlen, &present)) | |
1451 | return false; | |
1452 | if (! present) | |
1453 | break; | |
1454 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1455 | &ftype) | |
1456 | || ! ieee_read_number (abfd, bytes, pp, pend, &bitpos) | |
1457 | || ! ieee_read_number (abfd, bytes, pp, pend, &bitsize)) | |
1458 | return false; | |
1459 | ||
1460 | if (c + 1 >= alloc) | |
1461 | { | |
1462 | alloc += 10; | |
1463 | fields = ((debug_field *) | |
1464 | xrealloc (fields, alloc * sizeof *fields)); | |
1465 | } | |
1466 | ||
1467 | fields[c] = debug_make_field (dhandle, savestring (name, namlen), | |
1468 | ftype, bitpos, bitsize, | |
1469 | DEBUG_VISIBILITY_PUBLIC); | |
1470 | if (fields[c] == NULL) | |
1471 | return false; | |
1472 | ++c; | |
1473 | } | |
1474 | ||
1475 | fields[c] = NULL; | |
1476 | ||
1477 | type = debug_make_struct_type (dhandle, true, size, fields); | |
1478 | tag = true; | |
1479 | } | |
1480 | break; | |
1481 | ||
1482 | case 'N': | |
1483 | /* Enumeration. */ | |
1484 | { | |
1485 | unsigned int alloc; | |
1486 | const char **names; | |
1487 | bfd_signed_vma *vals; | |
1488 | unsigned int c; | |
1489 | ||
1490 | alloc = 10; | |
1491 | names = (const char **) xmalloc (alloc * sizeof *names); | |
1492 | vals = (bfd_signed_vma *) xmalloc (alloc * sizeof *names); | |
1493 | c = 0; | |
1494 | while (1) | |
1495 | { | |
1496 | const char *name; | |
1497 | unsigned long namlen; | |
1498 | boolean present; | |
1499 | bfd_vma val; | |
1500 | ||
1501 | if (! ieee_read_optional_id (abfd, bytes, pp, pend, &name, | |
1502 | &namlen, &present)) | |
1503 | return false; | |
1504 | if (! present) | |
1505 | break; | |
1506 | if (! ieee_read_number (abfd, bytes, pp, pend, &val)) | |
1507 | return false; | |
1508 | ||
1509 | /* If the length of the name is zero, then the value is | |
1510 | actually the size of the enum. We ignore this | |
1511 | information. FIXME. */ | |
1512 | if (namlen == 0) | |
1513 | continue; | |
1514 | ||
1515 | if (c + 1 >= alloc) | |
1516 | { | |
1517 | alloc += 10; | |
1518 | names = ((const char **) | |
1519 | xrealloc (names, alloc * sizeof *names)); | |
1520 | vals = ((bfd_signed_vma *) | |
1521 | xrealloc (vals, alloc * sizeof *vals)); | |
1522 | } | |
1523 | ||
1524 | names[c] = savestring (name, namlen); | |
1525 | if (names[c] == NULL) | |
1526 | return false; | |
1527 | vals[c] = (bfd_signed_vma) val; | |
1528 | ++c; | |
1529 | } | |
1530 | ||
1531 | names[c] = NULL; | |
1532 | ||
1533 | type = debug_make_enum_type (dhandle, names, vals); | |
1534 | tag = true; | |
1535 | } | |
1536 | break; | |
1537 | ||
1538 | case 'O': /* Small pointer. We don't distinguish small and large | |
1539 | pointers. FIXME. */ | |
1540 | case 'P': /* Large pointer. */ | |
1541 | { | |
1542 | debug_type t; | |
1543 | ||
1544 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, &t)) | |
1545 | return false; | |
1546 | type = debug_make_pointer_type (dhandle, t); | |
1547 | } | |
1548 | break; | |
1549 | ||
1550 | case 'R': | |
1551 | /* Range. */ | |
1552 | { | |
1553 | bfd_vma low, high, signedp, size; | |
1554 | ||
1555 | if (! ieee_read_number (abfd, bytes, pp, pend, &low) | |
1556 | || ! ieee_read_number (abfd, bytes, pp, pend, &high) | |
1557 | || ! ieee_read_number (abfd, bytes, pp, pend, &signedp) | |
1558 | || ! ieee_read_number (abfd, bytes, pp, pend, &size)) | |
1559 | return false; | |
1560 | ||
1561 | type = debug_make_range_type (dhandle, | |
1562 | debug_make_int_type (dhandle, size, | |
1563 | ! signedp), | |
1564 | (bfd_signed_vma) low, | |
1565 | (bfd_signed_vma) high); | |
1566 | } | |
1567 | break; | |
1568 | ||
1569 | case 'S': /* Struct. */ | |
1570 | case 'U': /* Union. */ | |
1571 | { | |
1572 | bfd_vma size; | |
1573 | unsigned int alloc; | |
1574 | debug_field *fields; | |
1575 | unsigned int c; | |
1576 | ||
1577 | if (! ieee_read_number (abfd, bytes, pp, pend, &size)) | |
1578 | return false; | |
1579 | ||
1580 | alloc = 10; | |
1581 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); | |
1582 | c = 0; | |
1583 | while (1) | |
1584 | { | |
1585 | const char *name; | |
1586 | unsigned long namlen; | |
1587 | boolean present; | |
1588 | bfd_vma tindx; | |
1589 | bfd_vma offset; | |
1590 | debug_type ftype; | |
1591 | bfd_vma bitsize; | |
1592 | ||
1593 | if (! ieee_read_optional_id (abfd, bytes, pp, pend, &name, | |
1594 | &namlen, &present)) | |
1595 | return false; | |
1596 | if (! present) | |
1597 | break; | |
1598 | if (! ieee_read_number (abfd, bytes, pp, pend, &tindx) | |
1599 | || ! ieee_read_number (abfd, bytes, pp, pend, &offset)) | |
1600 | return false; | |
1601 | ||
1602 | if (tindx < 256) | |
1603 | { | |
1604 | ftype = ieee_builtin_type (dhandle, abfd, types, bytes, | |
1605 | ty_code_start, tindx); | |
1606 | bitsize = 0; | |
1607 | offset *= 8; | |
1608 | } | |
1609 | else | |
1610 | { | |
1611 | struct ieee_type *t; | |
1612 | ||
1613 | tindx -= 256; | |
1614 | if (tindx >= types->alloc | |
1615 | || types->types[tindx].type == DEBUG_TYPE_NULL) | |
1616 | { | |
1617 | ieee_error (abfd, bytes, ty_start, "undefined type index"); | |
1618 | return false; | |
1619 | } | |
1620 | t = &types->types[tindx]; | |
1621 | ftype = t->type; | |
1622 | bitsize = t->bitsize; | |
1623 | if (bitsize == 0) | |
1624 | offset *= 8; | |
1625 | } | |
1626 | ||
1627 | if (c + 1 >= alloc) | |
1628 | { | |
1629 | alloc += 10; | |
1630 | fields = ((debug_field *) | |
1631 | xrealloc (fields, alloc * sizeof *fields)); | |
1632 | } | |
1633 | ||
1634 | fields[c] = debug_make_field (dhandle, savestring (name, namlen), | |
1635 | ftype, offset, bitsize, | |
1636 | DEBUG_VISIBILITY_PUBLIC); | |
1637 | if (fields[c] == NULL) | |
1638 | return false; | |
1639 | ++c; | |
1640 | } | |
1641 | ||
1642 | fields[c] = NULL; | |
1643 | ||
1644 | type = debug_make_struct_type (dhandle, tc == 'S', size, fields); | |
1645 | tag = true; | |
1646 | } | |
1647 | break; | |
1648 | ||
1649 | case 'T': | |
1650 | /* Typedef. */ | |
1651 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1652 | &type)) | |
1653 | return false; | |
1654 | typdef = true; | |
1655 | break; | |
1656 | ||
1657 | case 'X': | |
1658 | /* Procedure. FIXME: This is an extern declaration, which we | |
1659 | have no way of representing. */ | |
1660 | { | |
1661 | bfd_vma attr; | |
1662 | debug_type rtype; | |
1663 | bfd_vma nargs; | |
1664 | boolean present; | |
1665 | ||
1666 | /* FIXME: We ignore the attribute and the argument names. */ | |
1667 | ||
1668 | if (! ieee_read_number (abfd, bytes, pp, pend, &attr) | |
1669 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1670 | &rtype) | |
1671 | || ! ieee_read_number (abfd, bytes, pp, pend, &nargs)) | |
1672 | return false; | |
1673 | do | |
1674 | { | |
1675 | const char *name; | |
1676 | unsigned long namlen; | |
1677 | ||
1678 | if (! ieee_read_optional_id (abfd, bytes, pp, pend, &name, | |
1679 | &namlen, &present)) | |
1680 | return false; | |
1681 | } | |
1682 | while (present); | |
1683 | ||
1684 | type = debug_make_function_type (dhandle, rtype); | |
1685 | return_type = rtype; | |
1686 | } | |
1687 | break; | |
1688 | ||
1689 | case 'Z': | |
1690 | /* Array with 0 lower bound. */ | |
1691 | { | |
1692 | debug_type etype; | |
1693 | bfd_vma high; | |
1694 | ||
1695 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1696 | &etype) | |
1697 | || ! ieee_read_number (abfd, bytes, pp, pend, &high)) | |
1698 | return false; | |
1699 | ||
1700 | type = debug_make_array_type (dhandle, etype, | |
1701 | debug_make_int_type (dhandle, 4, false), | |
1702 | 0, (bfd_signed_vma) high, false); | |
1703 | } | |
1704 | break; | |
1705 | ||
1706 | case 'c': /* Complex. */ | |
1707 | case 'd': /* Double complex. */ | |
1708 | { | |
1709 | const char *name; | |
1710 | unsigned long namlen; | |
1711 | ||
1712 | /* FIXME: I don't know what the name means. */ | |
1713 | ||
1714 | if (! ieee_read_id (abfd, bytes, pp, pend, &name, &namlen)) | |
1715 | return false; | |
1716 | ||
1717 | type = debug_make_complex_type (dhandle, tc == 'c' ? 4 : 8); | |
1718 | } | |
1719 | break; | |
1720 | ||
1721 | case 'f': | |
1722 | /* Pascal file name. FIXME. */ | |
1723 | ieee_error (abfd, bytes, ty_code_start, | |
1724 | "Pascal file name not supported"); | |
1725 | return false; | |
1726 | ||
1727 | case 'g': | |
1728 | /* Bitfield type. */ | |
1729 | { | |
1730 | bfd_vma signedp, bitsize; | |
1731 | ||
1732 | if (! ieee_read_number (abfd, bytes, pp, pend, &signedp) | |
1733 | || ! ieee_read_number (abfd, bytes, pp, pend, &bitsize) | |
1734 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1735 | &type)) | |
1736 | return false; | |
1737 | ||
1738 | /* FIXME: This is just a guess. */ | |
1739 | if (! signedp) | |
1740 | type = debug_make_int_type (dhandle, 4, true); | |
1741 | type_bitsize = bitsize; | |
1742 | } | |
1743 | break; | |
1744 | ||
1745 | case 'n': | |
1746 | /* Qualifier. */ | |
1747 | { | |
1748 | bfd_vma kind; | |
1749 | debug_type t; | |
1750 | ||
1751 | if (! ieee_read_number (abfd, bytes, pp, pend, &kind) | |
1752 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1753 | &t)) | |
1754 | return false; | |
1755 | ||
1756 | switch (kind) | |
1757 | { | |
1758 | default: | |
1759 | ieee_error (abfd, bytes, ty_start, "unsupported qualifer"); | |
1760 | return false; | |
1761 | ||
1762 | case 1: | |
1763 | type = debug_make_const_type (dhandle, t); | |
1764 | break; | |
1765 | ||
1766 | case 2: | |
1767 | type = debug_make_volatile_type (dhandle, t); | |
1768 | break; | |
1769 | } | |
1770 | } | |
1771 | break; | |
1772 | ||
1773 | case 's': | |
1774 | /* Set. */ | |
1775 | { | |
1776 | bfd_vma size; | |
1777 | debug_type etype; | |
1778 | ||
1779 | if (! ieee_read_number (abfd, bytes, pp, pend, &size) | |
1780 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1781 | &etype)) | |
1782 | return false; | |
1783 | ||
1784 | /* FIXME: We ignore the size. */ | |
1785 | ||
1786 | type = debug_make_set_type (dhandle, etype, false); | |
1787 | } | |
1788 | break; | |
1789 | ||
1790 | case 'x': | |
1791 | /* Procedure with compiler dependencies. FIXME: This is an | |
1792 | extern declaration, which we have no way of representing. */ | |
1793 | { | |
1794 | bfd_vma attr, frame_type, push_mask, nargs, level, father; | |
1795 | debug_type rtype; | |
1796 | boolean present; | |
1797 | ||
1798 | /* FIXME: We ignore almost all this information. */ | |
1799 | ||
1800 | if (! ieee_read_number (abfd, bytes, pp, pend, &attr) | |
1801 | || ! ieee_read_number (abfd, bytes, pp, pend, &frame_type) | |
1802 | || ! ieee_read_number (abfd, bytes, pp, pend, &push_mask) | |
1803 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, | |
1804 | &rtype) | |
1805 | || ! ieee_read_number (abfd, bytes, pp, pend, &nargs)) | |
1806 | return false; | |
1807 | if (nargs != (bfd_vma) -1) | |
1808 | { | |
1809 | for (; nargs > 0; nargs--) | |
1810 | { | |
1811 | debug_type atype; | |
1812 | ||
1813 | if (! ieee_read_type_index (dhandle, abfd, types, bytes, pp, | |
1814 | pend, &atype)) | |
1815 | return false; | |
1816 | } | |
1817 | } | |
1818 | if (! ieee_read_number (abfd, bytes, pp, pend, &level) | |
1819 | || ! ieee_read_optional_number (abfd, bytes, pp, pend, &father, | |
1820 | &present)) | |
1821 | return false; | |
1822 | ||
1823 | type = debug_make_function_type (dhandle, rtype); | |
1824 | return_type = rtype; | |
1825 | } | |
1826 | break; | |
1827 | } | |
1828 | ||
1829 | /* Record the type in the table. If the corresponding NN record has | |
1830 | a name, name it. FIXME: Is this always correct? */ | |
1831 | ||
1832 | if (type == NULL) | |
1833 | return false; | |
1834 | ||
1835 | if ((tag || typdef) | |
1836 | && vars->vars[varindx].namlen > 0) | |
1837 | { | |
1838 | const char *name; | |
1839 | ||
1840 | name = savestring (vars->vars[varindx].name, | |
1841 | vars->vars[varindx].namlen); | |
1842 | if (tag) | |
1843 | type = debug_tag_type (dhandle, name, type); | |
1844 | else | |
1845 | type = debug_name_type (dhandle, name, type); | |
1846 | if (type == NULL) | |
1847 | return false; | |
1848 | } | |
1849 | ||
1850 | types->types[typeindx].type = type; | |
1851 | types->types[typeindx].bitsize = type_bitsize; | |
1852 | types->types[typeindx].return_type = return_type; | |
1853 | ||
1854 | return true; | |
1855 | } | |
1856 | ||
1857 | /* Parse an ATN record. */ | |
1858 | ||
1859 | static boolean | |
1860 | parse_ieee_atn (dhandle, abfd, types, vars, blocktype, bytes, pp, pend) | |
1861 | PTR dhandle; | |
1862 | bfd *abfd; | |
1863 | struct ieee_types *types; | |
1864 | struct ieee_vars *vars; | |
1865 | int blocktype; | |
1866 | const bfd_byte *bytes; | |
1867 | const bfd_byte **pp; | |
1868 | const bfd_byte *pend; | |
1869 | { | |
1870 | const bfd_byte *atn_start, *atn_code_start; | |
1871 | bfd_vma varindx; | |
1872 | boolean zeroindx; | |
1873 | debug_type type; | |
1874 | bfd_vma atn_code; | |
1875 | bfd_vma v, v2, v3, v4, v5; | |
1876 | const char *name; | |
1877 | unsigned long namlen; | |
1878 | char *namcopy; | |
1879 | boolean present; | |
1880 | ||
1881 | atn_start = *pp; | |
1882 | ||
1883 | if (! ieee_read_number (abfd, bytes, pp, pend, &varindx) | |
1884 | || ! ieee_read_type_index (dhandle, abfd, types, bytes, pp, pend, &type)) | |
1885 | return false; | |
1886 | ||
1887 | atn_code_start = *pp; | |
1888 | ||
1889 | if (! ieee_read_number (abfd, bytes, pp, pend, &atn_code)) | |
1890 | return false; | |
1891 | ||
1892 | if (varindx == 0) | |
1893 | { | |
1894 | zeroindx = true; | |
1895 | name = ""; | |
1896 | namlen = 0; | |
1897 | } | |
1898 | else if (varindx < 32) | |
1899 | { | |
1900 | ieee_error (abfd, bytes, atn_start, "illegal variable index"); | |
1901 | return false; | |
1902 | } | |
1903 | else | |
1904 | { | |
1905 | varindx -= 32; | |
1906 | zeroindx = false; | |
1907 | if (varindx >= vars->alloc || vars->vars[varindx].name == NULL) | |
1908 | { | |
1909 | ieee_error (abfd, bytes, atn_start, "undefined variable in ATN"); | |
1910 | return false; | |
1911 | } | |
1912 | ||
1913 | vars->vars[varindx].type = type; | |
1914 | ||
1915 | name = vars->vars[varindx].name; | |
1916 | namlen = vars->vars[varindx].namlen; | |
1917 | } | |
1918 | ||
1919 | switch (atn_code) | |
1920 | { | |
1921 | default: | |
1922 | ieee_error (abfd, bytes, atn_code_start, "unknown ATN type"); | |
1923 | return false; | |
1924 | ||
1925 | case 1: | |
1926 | /* Automatic variable. */ | |
1927 | if (! ieee_read_number (abfd, bytes, pp, pend, &v)) | |
1928 | return false; | |
1929 | namcopy = savestring (name, namlen); | |
1930 | if (type == NULL) | |
1931 | type = debug_make_void_type (dhandle); | |
1932 | return debug_record_variable (dhandle, namcopy, type, DEBUG_LOCAL, v); | |
1933 | ||
1934 | case 2: | |
1935 | /* Register variable. */ | |
1936 | if (! ieee_read_number (abfd, bytes, pp, pend, &v)) | |
1937 | return false; | |
1938 | namcopy = savestring (name, namlen); | |
1939 | if (type == NULL) | |
1940 | type = debug_make_void_type (dhandle); | |
1941 | return debug_record_variable (dhandle, namcopy, type, DEBUG_REGISTER, | |
1942 | ieee_regno_to_gen (abfd, v)); | |
1943 | ||
1944 | case 3: | |
1945 | /* Static variable. */ | |
1946 | if (! ieee_require_asn (abfd, bytes, pp, pend, &v)) | |
1947 | return false; | |
1948 | namcopy = savestring (name, namlen); | |
1949 | if (type == NULL) | |
1950 | type = debug_make_void_type (dhandle); | |
1951 | return debug_record_variable (dhandle, namcopy, type, | |
1952 | (blocktype == 4 || blocktype == 6 | |
1953 | ? DEBUG_LOCAL_STATIC | |
1954 | : DEBUG_STATIC), | |
1955 | v); | |
1956 | ||
1957 | case 4: | |
1958 | /* External function. We don't currently record these. FIXME. */ | |
1959 | return true; | |
1960 | ||
1961 | case 5: | |
1962 | /* External variable. We don't currently record these. FIXME. */ | |
1963 | return true; | |
1964 | ||
1965 | case 7: | |
1966 | if (! ieee_read_number (abfd, bytes, pp, pend, &v) | |
1967 | || ! ieee_read_number (abfd, bytes, pp, pend, &v2) | |
1968 | || ! ieee_read_optional_number (abfd, bytes, pp, pend, &v3, | |
1969 | &present)) | |
1970 | return false; | |
1971 | if (present) | |
1972 | { | |
1973 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &v4, | |
1974 | &present)) | |
1975 | return false; | |
1976 | } | |
1977 | ||
1978 | /* We just ignore the two optional fields in v3 and v4, since | |
1979 | they are not defined. */ | |
1980 | ||
1981 | if (! ieee_require_asn (abfd, bytes, pp, pend, &v3)) | |
1982 | return false; | |
1983 | ||
1984 | /* We have no way to record the column number. FIXME. */ | |
1985 | ||
1986 | return debug_record_line (dhandle, v, v3); | |
1987 | ||
1988 | case 8: | |
1989 | /* Global variable. */ | |
1990 | if (! ieee_require_asn (abfd, bytes, pp, pend, &v)) | |
1991 | return false; | |
1992 | namcopy = savestring (name, namlen); | |
1993 | if (type == NULL) | |
1994 | type = debug_make_void_type (dhandle); | |
1995 | return debug_record_variable (dhandle, namcopy, type, DEBUG_GLOBAL, v); | |
1996 | ||
1997 | case 9: | |
1998 | /* Variable lifetime information. */ | |
1999 | if (! ieee_read_number (abfd, bytes, pp, pend, &v)) | |
2000 | return false; | |
2001 | ||
2002 | /* We have no way to record this information. FIXME. */ | |
2003 | return true; | |
2004 | ||
2005 | case 10: | |
2006 | /* Locked register. */ | |
2007 | if (! ieee_read_number (abfd, bytes, pp, pend, &v) | |
2008 | || ! ieee_read_number (abfd, bytes, pp, pend, &v2)) | |
2009 | return false; | |
2010 | ||
2011 | /* I don't know what this means. FIXME. */ | |
2012 | ||
2013 | ieee_error (abfd, bytes, atn_code_start, "unsupported ATN10"); | |
2014 | ||
2015 | /* Return true to keep going. */ | |
2016 | return true; | |
2017 | ||
2018 | case 11: | |
2019 | /* Reserved for FORTRAN common. */ | |
2020 | ieee_error (abfd, bytes, atn_code_start, "unsupported ATN11"); | |
2021 | ||
2022 | /* Return true to keep going. */ | |
2023 | return true; | |
2024 | ||
2025 | case 12: | |
2026 | /* Based variable. */ | |
2027 | v3 = 0; | |
2028 | v4 = 0x80; | |
2029 | v5 = 0; | |
2030 | if (! ieee_read_number (abfd, bytes, pp, pend, &v) | |
2031 | || ! ieee_read_number (abfd, bytes, pp, pend, &v2) | |
2032 | || ! ieee_read_optional_number (abfd, bytes, pp, pend, &v3, | |
2033 | &present)) | |
2034 | return false; | |
2035 | if (present) | |
2036 | { | |
2037 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &v4, | |
2038 | &present)) | |
2039 | return false; | |
2040 | if (present) | |
2041 | { | |
2042 | if (! ieee_read_optional_number (abfd, bytes, pp, pend, &v5, | |
2043 | &present)) | |
2044 | return false; | |
2045 | } | |
2046 | } | |
2047 | ||
2048 | /* We have no way to record this information. FIXME. */ | |
2049 | ||
2050 | ieee_error (abfd, bytes, atn_code_start, "unsupported ATN12"); | |
2051 | ||
2052 | /* Return true to keep going. */ | |
2053 | return true; | |
2054 | ||
2055 | case 16: | |
2056 | /* Constant. The description of this that I have is ambiguous, | |
2057 | so I'm not going to try to implement it. */ | |
2058 | ieee_error (abfd, bytes, atn_code_start, "unsupported ATN16"); | |
2059 | return false; | |
2060 | ||
2061 | case 19: | |
2062 | /* Static variable from assembler. */ | |
2063 | v2 = 0; | |
2064 | if (! ieee_read_number (abfd, bytes, pp, pend, &v) | |
2065 | || ! ieee_read_optional_number (abfd, bytes, pp, pend, &v2, | |
2066 | &present) | |
2067 | || ! ieee_require_asn (abfd, bytes, pp, pend, &v3)) | |
2068 | return false; | |
2069 | namcopy = savestring (name, namlen); | |
2070 | /* We don't really handle this correctly. FIXME. */ | |
2071 | return debug_record_variable (dhandle, namcopy, | |
2072 | debug_make_void_type (dhandle), | |
2073 | v2 != 0 ? DEBUG_GLOBAL : DEBUG_STATIC, | |
2074 | v3); | |
2075 | ||
2076 | case 62: | |
2077 | /* Procedure miscellaneous information. */ | |
2078 | case 63: | |
2079 | /* Variable miscellaneous information. */ | |
2080 | case 64: | |
2081 | /* Module miscellaneous information. */ | |
2082 | if (! ieee_read_number (abfd, bytes, pp, pend, &v) | |
2083 | || ! ieee_read_number (abfd, bytes, pp, pend, &v2) | |
2084 | || ! ieee_read_optional_id (abfd, bytes, pp, pend, &name, &namlen, | |
2085 | &present)) | |
2086 | return false; | |
2087 | ||
2088 | /* We just ignore all of this stuff. FIXME. */ | |
2089 | ||
2090 | for (; v2 > 0; --v2) | |
2091 | { | |
2092 | ieee_record_enum_type c; | |
2093 | bfd_vma vindx; | |
2094 | const char *str; | |
2095 | unsigned long strlen; | |
2096 | ||
2097 | c = (ieee_record_enum_type) **pp; | |
2098 | ++*pp; | |
2099 | if (c != ieee_at_record_enum | |
2100 | && c != ieee_e2_first_byte_enum) | |
2101 | { | |
2102 | ieee_error (abfd, bytes, *pp - 1, "bad misc record"); | |
2103 | return false; | |
2104 | } | |
2105 | ||
2106 | c = (ieee_record_enum_type) (((unsigned int) c << 8) | **pp); | |
2107 | ++*pp; | |
2108 | switch (c) | |
2109 | { | |
2110 | default: | |
2111 | ieee_error (abfd, bytes, *pp - 2, "bad misc record"); | |
2112 | return false; | |
2113 | ||
2114 | case ieee_atn_record_enum: | |
2115 | if (! ieee_read_number (abfd, bytes, pp, pend, &vindx)) | |
2116 | return false; | |
2117 | if ((*pp)[0] != 0 || (*pp)[1] != 65) | |
2118 | { | |
2119 | ieee_error (abfd, bytes, *pp, "bad atn in misc"); | |
2120 | return false; | |
2121 | } | |
2122 | *pp += 2; | |
2123 | if (! ieee_read_id (abfd, bytes, pp, pend, &str, &strlen)) | |
2124 | return false; | |
2125 | break; | |
2126 | ||
2127 | case ieee_asn_record_enum: | |
2128 | if (! ieee_read_number (abfd, bytes, pp, pend, &vindx) | |
2129 | || ! ieee_read_expression (abfd, bytes, pp, pend, &v3)) | |
2130 | return false; | |
2131 | break; | |
2132 | } | |
2133 | } | |
2134 | ||
2135 | return true; | |
2136 | } | |
2137 | ||
2138 | /*NOTREACHED*/ | |
2139 | } | |
2140 | ||
2141 | /* Require an ASN record. */ | |
2142 | ||
2143 | static boolean | |
2144 | ieee_require_asn (abfd, bytes, pp, pend, pv) | |
2145 | bfd *abfd; | |
2146 | const bfd_byte *bytes; | |
2147 | const bfd_byte **pp; | |
2148 | const bfd_byte *pend; | |
2149 | bfd_vma *pv; | |
2150 | { | |
2151 | const bfd_byte *start; | |
2152 | ieee_record_enum_type c; | |
2153 | bfd_vma varindx; | |
2154 | ||
2155 | start = *pp; | |
2156 | ||
2157 | c = (ieee_record_enum_type) **pp; | |
2158 | if (c != ieee_e2_first_byte_enum) | |
2159 | { | |
2160 | ieee_error (abfd, bytes, start, "missing required ASN"); | |
2161 | return false; | |
2162 | } | |
2163 | ++*pp; | |
2164 | ||
2165 | c = (ieee_record_enum_type) (((unsigned int) c << 8) | **pp); | |
2166 | if (c != ieee_asn_record_enum) | |
2167 | { | |
2168 | ieee_error (abfd, bytes, start, "missing required ASN"); | |
2169 | return false; | |
2170 | } | |
2171 | ++*pp; | |
2172 | ||
2173 | /* Just ignore the variable index. */ | |
2174 | if (! ieee_read_number (abfd, bytes, pp, pend, &varindx)) | |
2175 | return false; | |
2176 | ||
2177 | return ieee_read_expression (abfd, bytes, pp, pend, pv); | |
2178 | } |