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98c0e047 JL |
1 | /* Read hp debug symbols and convert to internal format, for GDB. |
2 | Copyright 1993 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | ||
20 | Written by the Center for Software Science at the University of Utah | |
21 | and by Cygnus Support. */ | |
22 | ||
23 | #include "defs.h" | |
24 | #include "bfd.h" | |
25 | #include <string.h> | |
26 | #include "hpux-symtab.h" | |
27 | #include "syms.h" | |
28 | #include "symtab.h" | |
29 | #include "symfile.h" | |
30 | #include "objfiles.h" | |
31 | #include "buildsym.h" | |
32 | #include "complaints.h" | |
33 | #include "gdb-stabs.h" | |
34 | #include "gdbtypes.h" | |
35 | ||
36 | /* Private information attached to an objfile which we use to find | |
37 | and internalize the HP C debug symbols within that objfile. */ | |
38 | ||
39 | struct hpread_symfile_info | |
40 | { | |
41 | /* The contents of each of the debug sections (there are 4 of them). */ | |
42 | char *gntt; | |
43 | char *lntt; | |
44 | char *slt; | |
45 | char *vt; | |
46 | ||
47 | /* We keep the size of the $VT$ section for range checking. */ | |
48 | unsigned int vt_size; | |
49 | ||
50 | /* Some routines still need to know the number of symbols in the | |
51 | main debug sections ($LNTT$ and $GNTT$). */ | |
52 | unsigned int lntt_symcount; | |
53 | unsigned int gntt_symcount; | |
54 | ||
55 | /* To keep track of all the types we've processed. */ | |
56 | struct type **type_vector; | |
57 | int type_vector_length; | |
58 | ||
59 | /* Keeps track of the beginning of a range of source lines. */ | |
60 | SLTPOINTER sl_index; | |
61 | ||
62 | /* Some state variables we'll need. */ | |
98c0e047 JL |
63 | int within_function; |
64 | ||
38ab0632 JL |
65 | /* Keep track of the current function's address. We may need to look |
66 | up something based on this address. */ | |
67 | unsigned int current_function_value; | |
98c0e047 JL |
68 | |
69 | }; | |
70 | ||
71 | /* Accessor macros to get at the fields. */ | |
72 | #define HPUX_SYMFILE_INFO(o) \ | |
73 | ((struct hpread_symfile_info *)((o)->sym_private)) | |
74 | #define GNTT(o) (HPUX_SYMFILE_INFO(o)->gntt) | |
75 | #define LNTT(o) (HPUX_SYMFILE_INFO(o)->lntt) | |
76 | #define SLT(o) (HPUX_SYMFILE_INFO(o)->slt) | |
77 | #define VT(o) (HPUX_SYMFILE_INFO(o)->vt) | |
78 | #define VT_SIZE(o) (HPUX_SYMFILE_INFO(o)->vt_size) | |
79 | #define LNTT_SYMCOUNT(o) (HPUX_SYMFILE_INFO(o)->lntt_symcount) | |
80 | #define GNTT_SYMCOUNT(o) (HPUX_SYMFILE_INFO(o)->gntt_symcount) | |
81 | #define TYPE_VECTOR(o) (HPUX_SYMFILE_INFO(o)->type_vector) | |
82 | #define TYPE_VECTOR_LENGTH(o) (HPUX_SYMFILE_INFO(o)->type_vector_length) | |
83 | #define SL_INDEX(o) (HPUX_SYMFILE_INFO(o)->sl_index) | |
98c0e047 JL |
84 | #define WITHIN_FUNCTION(o) (HPUX_SYMFILE_INFO(o)->within_function) |
85 | #define CURRENT_FUNCTION_VALUE(o) (HPUX_SYMFILE_INFO(o)->current_function_value) | |
86 | ||
87 | /* Given the native debug symbol SYM, set NAMEP to the name associated | |
88 | with the debug symbol. Note we may be called with a debug symbol which | |
89 | has no associated name, in that case we return an empty string. | |
90 | ||
91 | Also note we "know" that the name for any symbol is always in the | |
92 | same place. Hence we don't have to conditionalize on the symbol type. */ | |
93 | #define SET_NAMESTRING(SYM, NAMEP, OBJFILE) \ | |
94 | if (! hpread_has_name ((SYM)->dblock.kind)) \ | |
95 | *NAMEP = ""; \ | |
96 | else if (((unsigned)(SYM)->dsfile.name) >= VT_SIZE (OBJFILE)) \ | |
97 | { \ | |
98 | complain (&string_table_offset_complaint, (char *) symnum); \ | |
99 | *NAMEP = ""; \ | |
100 | } \ | |
101 | else \ | |
102 | *NAMEP = (SYM)->dsfile.name + VT (OBJFILE) | |
103 | ||
104 | /* Each partial symbol table entry contains a pointer to private data for the | |
105 | read_symtab() function to use when expanding a partial symbol table entry | |
106 | to a full symbol table entry. | |
107 | ||
108 | For hpuxread this structure contains the offset within the file symbol table | |
109 | of first local symbol for this file, and length (in bytes) of the section | |
110 | of the symbol table devoted to this file's symbols (actually, the section | |
111 | bracketed may contain more than just this file's symbols). | |
112 | ||
113 | If ldsymlen is 0, the only reason for this thing's existence is the | |
114 | dependency list. Nothing else will happen when it is read in. */ | |
115 | ||
116 | #define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff) | |
117 | #define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen) | |
118 | #define SYMLOC(p) ((struct symloc *)((p)->read_symtab_private)) | |
119 | ||
120 | struct symloc | |
121 | { | |
122 | int ldsymoff; | |
123 | int ldsymlen; | |
124 | }; | |
125 | ||
126 | /* FIXME: Shouldn't this stuff be in a .h file somewhere? */ | |
127 | /* Nonzero means give verbose info on gdb action. */ | |
128 | extern int info_verbose; | |
129 | ||
130 | /* Complaints about the symbols we have encountered. */ | |
131 | extern struct complaint string_table_offset_complaint; | |
132 | extern struct complaint lbrac_unmatched_complaint; | |
133 | extern struct complaint lbrac_mismatch_complaint; | |
134 | ||
135 | \f | |
136 | void hpread_symfile_init PARAMS ((struct objfile *)); | |
137 | ||
138 | static struct type *hpread_alloc_type | |
139 | PARAMS ((DNTTPOINTER, struct objfile *)); | |
140 | ||
141 | static struct type **hpread_lookup_type | |
142 | PARAMS ((DNTTPOINTER, struct objfile *)); | |
143 | ||
144 | static struct type *hpread_read_enum_type | |
145 | PARAMS ((DNTTPOINTER, union dnttentry *, struct objfile *)); | |
146 | ||
147 | static struct type *hpread_read_set_type | |
148 | PARAMS ((DNTTPOINTER, union dnttentry *, struct objfile *)); | |
149 | ||
150 | static struct type *hpread_read_subrange_type | |
151 | PARAMS ((DNTTPOINTER, union dnttentry *, struct objfile *)); | |
152 | ||
153 | static struct type *hpread_read_struct_type | |
154 | PARAMS ((DNTTPOINTER, union dnttentry *, struct objfile *)); | |
155 | ||
156 | void hpread_build_psymtabs | |
157 | PARAMS ((struct objfile *, struct section_offsets *, int)); | |
158 | ||
159 | void hpread_symfile_finish PARAMS ((struct objfile *)); | |
160 | ||
161 | static struct partial_symtab *hpread_start_psymtab | |
162 | PARAMS ((struct objfile *, struct section_offsets *, char *, CORE_ADDR, int, | |
163 | struct partial_symbol *, struct partial_symbol *)); | |
164 | ||
165 | static struct partial_symtab *hpread_end_psymtab | |
166 | PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR, | |
167 | struct partial_symtab **, int)); | |
168 | ||
169 | static struct symtab *hpread_expand_symtab | |
170 | PARAMS ((struct objfile *, int, int, CORE_ADDR, int, | |
171 | struct section_offsets *, char *)); | |
172 | ||
173 | static void hpread_process_one_debug_symbol | |
174 | PARAMS ((union dnttentry *, char *, struct section_offsets *, | |
175 | struct objfile *, CORE_ADDR, int, char *, int)); | |
176 | ||
177 | static SLTPOINTER hpread_record_lines | |
178 | PARAMS ((struct subfile *, SLTPOINTER, SLTPOINTER, struct objfile *)); | |
179 | ||
180 | static struct type *hpread_read_function_type | |
181 | PARAMS ((DNTTPOINTER, union dnttentry *, struct objfile *)); | |
182 | ||
183 | static struct type * hpread_type_lookup | |
184 | PARAMS ((DNTTPOINTER, struct objfile *)); | |
185 | ||
186 | static unsigned long hpread_get_depth | |
187 | PARAMS ((SLTPOINTER, struct objfile *)); | |
188 | ||
189 | static unsigned long hpread_get_line | |
190 | PARAMS ((SLTPOINTER, struct objfile *)); | |
191 | ||
192 | static ADDRESS hpread_get_location | |
193 | PARAMS ((SLTPOINTER, struct objfile *)); | |
194 | ||
195 | static int hpread_type_translate PARAMS ((DNTTPOINTER)); | |
196 | static unsigned long hpread_get_textlow PARAMS ((int, int, struct objfile *)); | |
197 | static union dnttentry *hpread_get_gntt PARAMS ((int, struct objfile *)); | |
198 | static union dnttentry *hpread_get_lntt PARAMS ((int, struct objfile *)); | |
199 | static union sltentry *hpread_get_slt PARAMS ((int, struct objfile *)); | |
200 | static void hpread_psymtab_to_symtab PARAMS ((struct partial_symtab *)); | |
201 | static void hpread_psymtab_to_symtab_1 PARAMS ((struct partial_symtab *)); | |
202 | static int hpread_has_name PARAMS ((KINDTYPE)); | |
203 | ||
204 | \f | |
205 | /* Initialization for reading native HP C debug symbols from OBJFILE. | |
206 | ||
207 | It's only purpose in life is to set up the symbol reader's private | |
208 | per-objfile data structures, and read in the raw contents of the debug | |
209 | sections (attaching pointers to the debug info into the private data | |
210 | structures. | |
211 | ||
212 | Since BFD doesn't know how to read debug symbols in a format-independent | |
213 | way (and may never do so...), we have to do it ourselves. Note we may | |
214 | be called on a file without native HP C debugging symbols. | |
215 | FIXME, there should be a cleaner peephole into the BFD environment here. */ | |
216 | ||
217 | void | |
218 | hpread_symfile_init (objfile) | |
219 | struct objfile *objfile; | |
220 | { | |
221 | asection *vt_section, *slt_section, *lntt_section, *gntt_section; | |
222 | ||
223 | /* Allocate struct to keep track of the symfile */ | |
224 | objfile->sym_private = (PTR) | |
225 | xmmalloc (objfile->md, sizeof (struct hpread_symfile_info)); | |
226 | memset (objfile->sym_private, 0, sizeof (struct hpread_symfile_info)); | |
227 | ||
228 | /* We haven't read in any types yet. */ | |
229 | TYPE_VECTOR (objfile) = 0; | |
230 | ||
231 | /* Read in data from the $GNTT$ subspace. */ | |
232 | gntt_section = bfd_get_section_by_name (objfile->obfd, "$GNTT$"); | |
233 | if (!gntt_section) | |
234 | return; | |
235 | ||
236 | GNTT (objfile) | |
237 | = obstack_alloc (&objfile->symbol_obstack, | |
238 | bfd_section_size (objfile->obfd, gntt_section)); | |
239 | ||
240 | bfd_get_section_contents (objfile->obfd, gntt_section, GNTT (objfile), | |
241 | 0, bfd_section_size (objfile->obfd, gntt_section)); | |
242 | ||
243 | GNTT_SYMCOUNT (objfile) | |
244 | = bfd_section_size (objfile->obfd, gntt_section) / DNTTBLOCKSIZE; | |
245 | ||
246 | /* Read in data from the $LNTT$ subspace. Also keep track of the number | |
247 | of LNTT symbols. */ | |
248 | lntt_section = bfd_get_section_by_name (objfile->obfd, "$LNTT$"); | |
249 | if (!lntt_section) | |
250 | return; | |
251 | ||
252 | LNTT (objfile) | |
253 | = obstack_alloc (&objfile->symbol_obstack, | |
254 | bfd_section_size (objfile->obfd, lntt_section)); | |
255 | ||
256 | bfd_get_section_contents (objfile->obfd, lntt_section, LNTT (objfile), | |
257 | 0, bfd_section_size (objfile->obfd, lntt_section)); | |
258 | ||
259 | LNTT_SYMCOUNT (objfile) | |
260 | = bfd_section_size (objfile->obfd, lntt_section) / DNTTBLOCKSIZE; | |
261 | ||
262 | /* Read in data from the $SLT$ subspace. $SLT$ contains information | |
263 | on source line numbers. */ | |
264 | slt_section = bfd_get_section_by_name (objfile->obfd, "$SLT$"); | |
265 | if (!slt_section) | |
266 | return; | |
267 | ||
268 | SLT (objfile) = | |
269 | obstack_alloc (&objfile->symbol_obstack, | |
270 | bfd_section_size (objfile->obfd, slt_section)); | |
271 | ||
272 | bfd_get_section_contents (objfile->obfd, slt_section, SLT (objfile), | |
273 | 0, bfd_section_size (objfile->obfd, slt_section)); | |
274 | ||
275 | /* Read in data from the $VT$ subspace. $VT$ contains things like | |
276 | names and constants. Keep track of the number of symbols in the VT. */ | |
277 | vt_section = bfd_get_section_by_name (objfile->obfd, "$VT$"); | |
278 | if (!vt_section) | |
279 | return; | |
280 | ||
281 | VT_SIZE (objfile) = bfd_section_size (objfile->obfd, vt_section); | |
282 | ||
283 | VT (objfile) = | |
284 | (char *) obstack_alloc (&objfile->symbol_obstack, | |
285 | VT_SIZE (objfile)); | |
286 | ||
287 | bfd_get_section_contents (objfile->obfd, vt_section, VT (objfile), | |
288 | 0, VT_SIZE (objfile)); | |
289 | } | |
290 | ||
291 | /* Scan and build partial symbols for a symbol file. | |
292 | ||
293 | The minimal symbol table (either SOM or HP a.out) has already been | |
294 | read in; all we need to do is setup partial symbols based on the | |
295 | native debugging information. | |
296 | ||
297 | We assume hpread_symfile_init has been called to initialize the | |
298 | symbol reader's private data structures. | |
299 | ||
300 | SECTION_OFFSETS contains offsets relative to which the symbols in the | |
301 | various sections are (depending where the sections were actually loaded). | |
302 | MAINLINE is true if we are reading the main symbol | |
303 | table (as opposed to a shared lib or dynamically loaded file). */ | |
304 | ||
305 | void | |
306 | hpread_build_psymtabs (objfile, section_offsets, mainline) | |
307 | struct objfile *objfile; | |
308 | struct section_offsets *section_offsets; | |
309 | int mainline; | |
310 | { | |
311 | char *namestring; | |
312 | int past_first_source_file = 0; | |
313 | struct cleanup *old_chain; | |
314 | ||
315 | int hp_symnum, symcount, i; | |
316 | ||
317 | union dnttentry *dn_bufp; | |
318 | unsigned long valu; | |
319 | char *p; | |
320 | int texthigh = 0; | |
321 | int have_name = 0; | |
322 | ||
323 | /* Current partial symtab */ | |
324 | struct partial_symtab *pst; | |
325 | ||
326 | /* List of current psymtab's include files */ | |
327 | char **psymtab_include_list; | |
328 | int includes_allocated; | |
329 | int includes_used; | |
330 | ||
331 | /* Index within current psymtab dependency list */ | |
332 | struct partial_symtab **dependency_list; | |
333 | int dependencies_used, dependencies_allocated; | |
334 | ||
335 | /* Just in case the stabs reader left turds lying around. */ | |
336 | pending_blocks = 0; | |
337 | make_cleanup (really_free_pendings, 0); | |
338 | ||
339 | pst = (struct partial_symtab *) 0; | |
340 | ||
341 | /* We shouldn't use alloca, instead use malloc/free. Doing so avoids | |
342 | a number of problems with cross compilation and creating useless holes | |
343 | in the stack when we have to allocate new entries. FIXME. */ | |
344 | ||
345 | includes_allocated = 30; | |
346 | includes_used = 0; | |
347 | psymtab_include_list = (char **) alloca (includes_allocated * | |
348 | sizeof (char *)); | |
349 | ||
350 | dependencies_allocated = 30; | |
351 | dependencies_used = 0; | |
352 | dependency_list = | |
353 | (struct partial_symtab **) alloca (dependencies_allocated * | |
354 | sizeof (struct partial_symtab *)); | |
355 | ||
356 | old_chain = make_cleanup (free_objfile, objfile); | |
357 | ||
358 | last_source_file = 0; | |
359 | ||
360 | /* Make two passes, one ofr the GNTT symbols, the other for the | |
361 | LNTT symbols. */ | |
362 | for (i = 0; i < 1; i++) | |
363 | { | |
364 | int within_function = 0; | |
365 | ||
366 | if (i) | |
367 | symcount = GNTT_SYMCOUNT (objfile); | |
368 | else | |
369 | symcount = LNTT_SYMCOUNT (objfile); | |
370 | ||
371 | for (hp_symnum = 0; hp_symnum < symcount; hp_symnum++) | |
372 | { | |
373 | QUIT; | |
374 | if (i) | |
375 | dn_bufp = hpread_get_gntt (hp_symnum, objfile); | |
376 | else | |
377 | dn_bufp = hpread_get_lntt (hp_symnum, objfile); | |
378 | ||
379 | if (dn_bufp->dblock.extension) | |
380 | continue; | |
381 | ||
382 | /* Only handle things which are necessary for minimal symbols. | |
383 | everything else is ignored. */ | |
384 | switch (dn_bufp->dblock.kind) | |
385 | { | |
386 | case K_SRCFILE: | |
387 | { | |
388 | /* A source file of some kind. Note this may simply | |
389 | be an included file. */ | |
390 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
391 | ||
392 | /* Check if this is the source file we are already working | |
393 | with. */ | |
394 | if (pst && !strcmp (namestring, pst->filename)) | |
395 | continue; | |
396 | ||
397 | /* Check if this is an include file, if so check if we have | |
398 | already seen it. Add it to the include list */ | |
399 | p = strrchr (namestring, '.'); | |
400 | if (!strcmp (p, ".h")) | |
401 | { | |
402 | int j, found; | |
403 | ||
404 | found = 0; | |
405 | for (j = 0; j < includes_used; j++) | |
406 | if (!strcmp (namestring, psymtab_include_list[j])) | |
407 | { | |
408 | found = 1; | |
409 | break; | |
410 | } | |
411 | if (found) | |
412 | continue; | |
413 | ||
414 | /* Add it to the list of includes seen so far and | |
415 | allocate more include space if necessary. */ | |
416 | psymtab_include_list[includes_used++] = namestring; | |
417 | if (includes_used >= includes_allocated) | |
418 | { | |
419 | char **orig = psymtab_include_list; | |
420 | ||
421 | psymtab_include_list = (char **) | |
422 | alloca ((includes_allocated *= 2) * | |
423 | sizeof (char *)); | |
424 | memcpy ((PTR) psymtab_include_list, (PTR) orig, | |
425 | includes_used * sizeof (char *)); | |
426 | } | |
427 | continue; | |
428 | } | |
429 | ||
430 | ||
38ab0632 | 431 | if (pst) |
98c0e047 JL |
432 | { |
433 | if (!have_name) | |
434 | { | |
38ab0632 JL |
435 | pst->filename = (char *) |
436 | obstack_alloc (&pst->objfile->psymbol_obstack, | |
437 | strlen (namestring) + 1); | |
98c0e047 JL |
438 | strcpy (pst->filename, namestring); |
439 | have_name = 1; | |
440 | continue; | |
441 | } | |
442 | continue; | |
443 | } | |
444 | ||
445 | /* This is a bonafide new source file. | |
446 | End the current partial symtab and start a new one. */ | |
447 | ||
448 | if (pst && past_first_source_file) | |
449 | { | |
450 | texthigh += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
451 | hpread_end_psymtab (pst, psymtab_include_list, | |
452 | includes_used, | |
453 | hp_symnum * DNTTBLOCKSIZE, texthigh, | |
454 | dependency_list, dependencies_used); | |
455 | pst = (struct partial_symtab *) 0; | |
456 | includes_used = 0; | |
457 | dependencies_used = 0; | |
458 | } | |
459 | else | |
460 | past_first_source_file = 1; | |
461 | ||
462 | valu = hpread_get_textlow (i, hp_symnum, objfile); | |
463 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
464 | pst = hpread_start_psymtab (objfile, section_offsets, | |
465 | namestring, valu, | |
466 | hp_symnum * DNTTBLOCKSIZE, | |
467 | objfile->global_psymbols.next, | |
468 | objfile->static_psymbols.next); | |
469 | texthigh = valu; | |
38ab0632 | 470 | have_name = 1; |
98c0e047 JL |
471 | continue; |
472 | } | |
473 | ||
474 | case K_MODULE: | |
475 | /* A source file. It's still unclear to me what the | |
476 | real difference between a K_SRCFILE and K_MODULE | |
477 | is supposed to be. */ | |
478 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
479 | valu = hpread_get_textlow (i, hp_symnum, objfile); | |
480 | valu += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
38ab0632 JL |
481 | if (!pst) |
482 | { | |
483 | pst = hpread_start_psymtab (objfile, section_offsets, | |
484 | namestring, valu, | |
485 | hp_symnum * DNTTBLOCKSIZE, | |
486 | objfile->global_psymbols.next, | |
487 | objfile->static_psymbols.next); | |
488 | texthigh = valu; | |
489 | have_name = 0; | |
490 | } | |
98c0e047 JL |
491 | continue; |
492 | case K_FUNCTION: | |
493 | case K_ENTRY: | |
494 | /* The beginning of a function. K_ENTRY may also denote | |
495 | a secondary entry point. */ | |
496 | valu = dn_bufp->dfunc.lowaddr + | |
497 | ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
498 | if (dn_bufp->dfunc.hiaddr > texthigh) | |
499 | texthigh = dn_bufp->dfunc.hiaddr; | |
500 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
501 | ADD_PSYMBOL_TO_LIST (namestring, strlen (namestring), | |
502 | VAR_NAMESPACE, LOC_BLOCK, | |
503 | objfile->static_psymbols, valu, | |
504 | language_unknown, objfile); | |
505 | within_function = 1; | |
506 | continue; | |
507 | case K_BEGIN: | |
508 | case K_END: | |
509 | /* Scope block begin/end. We only care about function | |
510 | and file blocks right now. */ | |
511 | if (dn_bufp->dend.endkind == K_MODULE) | |
512 | { | |
513 | texthigh += ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
514 | hpread_end_psymtab (pst, psymtab_include_list, includes_used, | |
515 | hp_symnum * DNTTBLOCKSIZE, texthigh, | |
516 | dependency_list, dependencies_used); | |
517 | pst = (struct partial_symtab *) 0; | |
518 | includes_used = 0; | |
519 | dependencies_used = 0; | |
98c0e047 JL |
520 | have_name = 0; |
521 | } | |
522 | if (dn_bufp->dend.endkind == K_FUNCTION) | |
523 | within_function = 0; | |
524 | continue; | |
525 | case K_SVAR: | |
526 | case K_DVAR: | |
527 | case K_TYPEDEF: | |
528 | case K_TAGDEF: | |
529 | { | |
530 | /* Variables, typedefs an the like. */ | |
531 | enum address_class storage; | |
532 | enum namespace namespace; | |
533 | ||
534 | /* Don't add locals to the partial symbol table. */ | |
535 | if (within_function | |
536 | && (dn_bufp->dblock.kind == K_SVAR | |
537 | || dn_bufp->dblock.kind == K_DVAR)) | |
538 | continue; | |
539 | ||
540 | /* TAGDEFs go into the structure namespace. */ | |
541 | if (dn_bufp->dblock.kind == K_TAGDEF) | |
542 | namespace = STRUCT_NAMESPACE; | |
543 | else | |
544 | namespace = VAR_NAMESPACE; | |
545 | ||
546 | /* What kind of "storage" does this use? */ | |
547 | if (dn_bufp->dblock.kind == K_SVAR) | |
548 | storage = LOC_STATIC; | |
549 | else if (dn_bufp->dblock.kind == K_DVAR | |
550 | && dn_bufp->ddvar.regvar) | |
551 | storage = LOC_REGISTER; | |
552 | else if (dn_bufp->dblock.kind == K_DVAR) | |
553 | storage = LOC_LOCAL; | |
554 | else | |
555 | storage = LOC_UNDEF; | |
556 | ||
557 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
558 | if (!pst) | |
559 | { | |
560 | pst = hpread_start_psymtab (objfile, section_offsets, | |
561 | "globals", 0, | |
562 | hp_symnum * DNTTBLOCKSIZE, | |
563 | objfile->global_psymbols.next, | |
564 | objfile->static_psymbols.next); | |
565 | } | |
566 | if (dn_bufp->dsvar.public) | |
567 | { | |
568 | ADD_PSYMBOL_TO_LIST (namestring, strlen (namestring), | |
569 | namespace, storage, | |
570 | objfile->global_psymbols, | |
571 | dn_bufp->dsvar.location, | |
572 | language_unknown, objfile); | |
573 | } | |
574 | else | |
575 | { | |
576 | ADD_PSYMBOL_TO_LIST (namestring, strlen (namestring), | |
577 | namespace, storage, | |
578 | objfile->static_psymbols, | |
579 | dn_bufp->dsvar.location, | |
580 | language_unknown, objfile); | |
581 | } | |
582 | continue; | |
583 | } | |
584 | case K_MEMENUM: | |
585 | case K_CONST: | |
586 | /* Constants and members of enumerated types. */ | |
587 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
588 | if (!pst) | |
589 | { | |
590 | pst = hpread_start_psymtab (objfile, section_offsets, | |
591 | "globals", 0, | |
592 | hp_symnum * DNTTBLOCKSIZE, | |
593 | objfile->global_psymbols.next, | |
594 | objfile->static_psymbols.next); | |
595 | } | |
596 | ADD_PSYMBOL_TO_LIST (namestring, strlen (namestring), | |
597 | VAR_NAMESPACE, LOC_CONST, | |
598 | objfile->static_psymbols, 0, | |
599 | language_unknown, objfile); | |
600 | continue; | |
601 | default: | |
602 | continue; | |
603 | } | |
604 | } | |
605 | } | |
606 | ||
607 | /* End any pending partial symbol table. */ | |
608 | if (pst) | |
609 | { | |
610 | hpread_end_psymtab (pst, psymtab_include_list, includes_used, | |
611 | hp_symnum * DNTTBLOCKSIZE, 0, | |
612 | dependency_list, dependencies_used); | |
613 | } | |
614 | ||
615 | discard_cleanups (old_chain); | |
616 | } | |
617 | ||
618 | /* Perform any local cleanups required when we are done with a particular | |
619 | objfile. I.E, we are in the process of discarding all symbol information | |
620 | for an objfile, freeing up all memory held for it, and unlinking the | |
621 | objfile struct from the global list of known objfiles. */ | |
622 | ||
623 | void | |
624 | hpread_symfile_finish (objfile) | |
625 | struct objfile *objfile; | |
626 | { | |
627 | if (objfile->sym_private != NULL) | |
628 | { | |
629 | mfree (objfile->md, objfile->sym_private); | |
630 | } | |
631 | } | |
632 | \f | |
633 | ||
634 | /* The remaining functions are all for internal use only. */ | |
635 | ||
636 | /* Various small functions to get entries in the debug symbol sections. */ | |
637 | ||
638 | static union dnttentry * | |
639 | hpread_get_lntt (index, objfile) | |
640 | int index; | |
641 | struct objfile *objfile; | |
642 | { | |
643 | return (union dnttentry *)&(LNTT (objfile)[index * DNTTBLOCKSIZE]); | |
644 | } | |
645 | ||
646 | static union dnttentry * | |
647 | hpread_get_gntt (index, objfile) | |
648 | int index; | |
649 | struct objfile *objfile; | |
650 | { | |
651 | return (union dnttentry *)&(GNTT (objfile)[index * DNTTBLOCKSIZE]); | |
652 | } | |
653 | ||
654 | static union sltentry * | |
655 | hpread_get_slt (index, objfile) | |
656 | int index; | |
657 | struct objfile *objfile; | |
658 | { | |
659 | return (union sltentry *)&(SLT (objfile)[index * SLTBLOCKSIZE]); | |
660 | } | |
661 | ||
662 | /* Get the low address associated with some symbol (typically the start | |
663 | of a particular source file or module). Since that information is not | |
664 | stored as part of the K_MODULE or K_SRCFILE symbol we must infer it from | |
665 | the existance of K_FUNCTION symbols. */ | |
666 | ||
667 | static unsigned long | |
668 | hpread_get_textlow (global, index, objfile) | |
669 | int global; | |
670 | int index; | |
671 | struct objfile *objfile; | |
672 | { | |
673 | union dnttentry *dn_bufp; | |
674 | struct minimal_symbol *msymbol; | |
675 | ||
676 | /* Look for a K_FUNCTION symbol. */ | |
677 | do | |
678 | { | |
679 | if (global) | |
680 | dn_bufp = hpread_get_gntt (index++, objfile); | |
681 | else | |
682 | dn_bufp = hpread_get_lntt (index++, objfile); | |
683 | } while (dn_bufp->dblock.kind != K_FUNCTION | |
684 | && dn_bufp->dblock.kind != K_END); | |
685 | ||
686 | /* Avoid going past a K_END when looking for a K_FUNCTION. This | |
687 | might happen when a sourcefile has no functions. */ | |
688 | if (dn_bufp->dblock.kind == K_END) | |
689 | return 0; | |
690 | ||
691 | /* The minimal symbols are typically more accurate for some reason. */ | |
692 | msymbol = lookup_minimal_symbol (dn_bufp->dfunc.name + VT (objfile), | |
693 | objfile); | |
694 | if (msymbol) | |
695 | return SYMBOL_VALUE_ADDRESS (msymbol); | |
696 | else | |
697 | return dn_bufp->dfunc.lowaddr; | |
698 | } | |
699 | ||
700 | /* Get the nesting depth for the source line identified by INDEX. */ | |
701 | ||
702 | static unsigned long | |
703 | hpread_get_depth (index, objfile) | |
704 | SLTPOINTER index; | |
705 | struct objfile *objfile; | |
706 | { | |
707 | union sltentry *sl_bufp; | |
708 | ||
709 | sl_bufp = hpread_get_slt (index, objfile); | |
710 | return sl_bufp->sspec.backptr.dnttp.index; | |
711 | } | |
712 | ||
713 | /* Get the source line number the the line identified by INDEX. */ | |
714 | ||
715 | static unsigned long | |
716 | hpread_get_line (index, objfile) | |
717 | SLTPOINTER index; | |
718 | struct objfile *objfile; | |
719 | { | |
720 | union sltentry *sl_bufp; | |
721 | ||
722 | sl_bufp = hpread_get_slt (index, objfile); | |
723 | return sl_bufp->snorm.line; | |
724 | } | |
725 | ||
726 | static ADDRESS | |
727 | hpread_get_location (index, objfile) | |
728 | SLTPOINTER index; | |
729 | struct objfile *objfile; | |
730 | { | |
731 | union sltentry *sl_bufp; | |
732 | int i; | |
733 | ||
734 | /* code location of special sltentrys is determined from context */ | |
735 | sl_bufp = hpread_get_slt (index, objfile); | |
736 | ||
737 | if (sl_bufp->snorm.sltdesc == SLT_END) | |
738 | { | |
739 | /* find previous normal sltentry and get address */ | |
740 | for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) && | |
741 | (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++) | |
742 | sl_bufp = hpread_get_slt (index - i, objfile); | |
743 | return sl_bufp->snorm.address; | |
744 | } | |
745 | ||
746 | /* find next normal sltentry and get address */ | |
747 | for (i = 0; ((sl_bufp->snorm.sltdesc != SLT_NORMAL) && | |
748 | (sl_bufp->snorm.sltdesc != SLT_EXIT)); i++) | |
749 | sl_bufp = hpread_get_slt (index + i, objfile); | |
750 | return sl_bufp->snorm.address; | |
751 | } | |
752 | \f | |
753 | ||
754 | /* Return 1 if an HP debug symbol of type KIND has a name associated with | |
755 | it, else return 0. */ | |
756 | ||
757 | static int | |
758 | hpread_has_name (kind) | |
759 | KINDTYPE kind; | |
760 | { | |
761 | switch (kind) | |
762 | { | |
763 | case K_SRCFILE: | |
764 | case K_MODULE: | |
765 | case K_FUNCTION: | |
766 | case K_ENTRY: | |
767 | case K_IMPORT: | |
768 | case K_LABEL: | |
769 | case K_FPARAM: | |
770 | case K_SVAR: | |
771 | case K_DVAR: | |
772 | case K_CONST: | |
773 | case K_TYPEDEF: | |
774 | case K_TAGDEF: | |
775 | case K_MEMENUM: | |
776 | case K_FIELD: | |
777 | case K_SA: | |
778 | return 1; | |
779 | ||
780 | case K_BEGIN: | |
781 | case K_END: | |
782 | case K_WITH: | |
783 | case K_COMMON: | |
784 | case K_POINTER: | |
785 | case K_ENUM: | |
786 | case K_SET: | |
787 | case K_SUBRANGE: | |
788 | case K_ARRAY: | |
789 | case K_STRUCT: | |
790 | case K_UNION: | |
791 | case K_VARIANT: | |
792 | case K_FILE: | |
793 | case K_FUNCTYPE: | |
794 | case K_COBSTRUCT: | |
795 | case K_XREF: | |
796 | case K_MACRO: | |
797 | default: | |
798 | return 0; | |
799 | } | |
800 | } | |
801 | ||
802 | /* Allocate and partially fill a partial symtab. It will be | |
803 | completely filled at the end of the symbol list. | |
804 | ||
805 | SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR | |
806 | is the address relative to which its symbols are (incremental) or 0 | |
807 | (normal). */ | |
808 | ||
809 | static struct partial_symtab * | |
810 | hpread_start_psymtab (objfile, section_offsets, | |
811 | filename, textlow, ldsymoff, global_syms, static_syms) | |
812 | struct objfile *objfile; | |
813 | struct section_offsets *section_offsets; | |
814 | char *filename; | |
815 | CORE_ADDR textlow; | |
816 | int ldsymoff; | |
817 | struct partial_symbol *global_syms; | |
818 | struct partial_symbol *static_syms; | |
819 | { | |
820 | struct partial_symtab *result = | |
821 | start_psymtab_common (objfile, section_offsets, | |
822 | filename, textlow, global_syms, static_syms); | |
823 | ||
824 | result->read_symtab_private = (char *) | |
825 | obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc)); | |
826 | LDSYMOFF (result) = ldsymoff; | |
827 | result->read_symtab = hpread_psymtab_to_symtab; | |
828 | ||
829 | return result; | |
830 | } | |
831 | \f | |
832 | ||
833 | /* Close off the current usage of PST. | |
834 | Returns PST or NULL if the partial symtab was empty and thrown away. | |
835 | ||
836 | FIXME: List variables and peculiarities of same. */ | |
837 | ||
838 | static struct partial_symtab * | |
839 | hpread_end_psymtab (pst, include_list, num_includes, capping_symbol_offset, | |
840 | capping_text, dependency_list, number_dependencies) | |
841 | struct partial_symtab *pst; | |
842 | char **include_list; | |
843 | int num_includes; | |
844 | int capping_symbol_offset; | |
845 | CORE_ADDR capping_text; | |
846 | struct partial_symtab **dependency_list; | |
847 | int number_dependencies; | |
848 | { | |
849 | int i; | |
850 | struct objfile *objfile = pst -> objfile; | |
851 | ||
852 | if (capping_symbol_offset != -1) | |
853 | LDSYMLEN(pst) = capping_symbol_offset - LDSYMOFF(pst); | |
854 | pst->texthigh = capping_text; | |
855 | ||
856 | pst->n_global_syms = | |
857 | objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset); | |
858 | pst->n_static_syms = | |
859 | objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset); | |
860 | ||
861 | pst->number_of_dependencies = number_dependencies; | |
862 | if (number_dependencies) | |
863 | { | |
864 | pst->dependencies = (struct partial_symtab **) | |
865 | obstack_alloc (&objfile->psymbol_obstack, | |
866 | number_dependencies * sizeof (struct partial_symtab *)); | |
867 | memcpy (pst->dependencies, dependency_list, | |
868 | number_dependencies * sizeof (struct partial_symtab *)); | |
869 | } | |
870 | else | |
871 | pst->dependencies = 0; | |
872 | ||
873 | for (i = 0; i < num_includes; i++) | |
874 | { | |
875 | struct partial_symtab *subpst = | |
876 | allocate_psymtab (include_list[i], objfile); | |
877 | ||
878 | subpst->section_offsets = pst->section_offsets; | |
879 | subpst->read_symtab_private = | |
880 | (char *) obstack_alloc (&objfile->psymbol_obstack, | |
881 | sizeof (struct symloc)); | |
882 | LDSYMOFF(subpst) = | |
883 | LDSYMLEN(subpst) = | |
884 | subpst->textlow = | |
885 | subpst->texthigh = 0; | |
886 | ||
887 | /* We could save slight bits of space by only making one of these, | |
888 | shared by the entire set of include files. FIXME-someday. */ | |
889 | subpst->dependencies = (struct partial_symtab **) | |
890 | obstack_alloc (&objfile->psymbol_obstack, | |
891 | sizeof (struct partial_symtab *)); | |
892 | subpst->dependencies[0] = pst; | |
893 | subpst->number_of_dependencies = 1; | |
894 | ||
895 | subpst->globals_offset = | |
896 | subpst->n_global_syms = | |
897 | subpst->statics_offset = | |
898 | subpst->n_static_syms = 0; | |
899 | ||
900 | subpst->readin = 0; | |
901 | subpst->symtab = 0; | |
902 | subpst->read_symtab = pst->read_symtab; | |
903 | } | |
904 | ||
905 | sort_pst_symbols (pst); | |
906 | ||
907 | /* If there is already a psymtab or symtab for a file of this name, remove it. | |
908 | (If there is a symtab, more drastic things also happen.) | |
909 | This happens in VxWorks. */ | |
910 | free_named_symtabs (pst->filename); | |
911 | ||
912 | if (num_includes == 0 | |
913 | && number_dependencies == 0 | |
914 | && pst->n_global_syms == 0 | |
915 | && pst->n_static_syms == 0) | |
916 | { | |
917 | /* Throw away this psymtab, it's empty. We can't deallocate it, since | |
918 | it is on the obstack, but we can forget to chain it on the list. */ | |
919 | /* Empty psymtabs happen as a result of header files which don't have | |
920 | any symbols in them. There can be a lot of them. But this check | |
921 | is wrong, in that a psymtab with N_SLINE entries but nothing else | |
922 | is not empty, but we don't realize that. Fixing that without slowing | |
923 | things down might be tricky. */ | |
924 | struct partial_symtab *prev_pst; | |
925 | ||
926 | /* First, snip it out of the psymtab chain */ | |
927 | ||
928 | if (pst->objfile->psymtabs == pst) | |
929 | pst->objfile->psymtabs = pst->next; | |
930 | else | |
931 | for (prev_pst = pst->objfile->psymtabs; prev_pst; prev_pst = pst->next) | |
932 | if (prev_pst->next == pst) | |
933 | prev_pst->next = pst->next; | |
934 | ||
935 | /* Next, put it on a free list for recycling */ | |
936 | ||
937 | pst->next = pst->objfile->free_psymtabs; | |
938 | pst->objfile->free_psymtabs = pst; | |
939 | ||
940 | /* Indicate that psymtab was thrown away. */ | |
941 | pst = (struct partial_symtab *)NULL; | |
942 | } | |
943 | return pst; | |
944 | } | |
945 | \f | |
946 | /* Do the dirty work of reading in the full symbol from a partial symbol | |
947 | table. */ | |
948 | ||
949 | static void | |
950 | hpread_psymtab_to_symtab_1 (pst) | |
951 | struct partial_symtab *pst; | |
952 | { | |
953 | struct cleanup *old_chain; | |
954 | int i; | |
955 | ||
956 | /* Get out quick if passed junk. */ | |
957 | if (!pst) | |
958 | return; | |
959 | ||
960 | /* Complain if we've already read in this symbol table. */ | |
961 | if (pst->readin) | |
962 | { | |
963 | fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |
964 | pst->filename); | |
965 | return; | |
966 | } | |
967 | ||
968 | /* Read in all partial symtabs on which this one is dependent */ | |
969 | for (i = 0; i < pst->number_of_dependencies; i++) | |
970 | if (!pst->dependencies[i]->readin) | |
971 | { | |
972 | /* Inform about additional files that need to be read in. */ | |
973 | if (info_verbose) | |
974 | { | |
975 | fputs_filtered (" ", stdout); | |
976 | wrap_here (""); | |
977 | fputs_filtered ("and ", stdout); | |
978 | wrap_here (""); | |
979 | printf_filtered ("%s...", pst->dependencies[i]->filename); | |
980 | wrap_here (""); /* Flush output */ | |
981 | fflush (stdout); | |
982 | } | |
983 | hpread_psymtab_to_symtab_1 (pst->dependencies[i]); | |
984 | } | |
985 | ||
986 | /* If it's real... */ | |
987 | if (LDSYMLEN (pst)) | |
988 | { | |
989 | /* Init stuff necessary for reading in symbols */ | |
990 | buildsym_init (); | |
991 | old_chain = make_cleanup (really_free_pendings, 0); | |
992 | ||
993 | pst->symtab = | |
994 | hpread_expand_symtab (pst->objfile, LDSYMOFF (pst), LDSYMLEN (pst), | |
995 | pst->textlow, pst->texthigh - pst->textlow, | |
996 | pst->section_offsets, pst->filename); | |
997 | sort_symtab_syms (pst->symtab); | |
998 | ||
999 | do_cleanups (old_chain); | |
1000 | } | |
1001 | ||
1002 | pst->readin = 1; | |
1003 | } | |
1004 | ||
1005 | /* Read in all of the symbols for a given psymtab for real. | |
1006 | Be verbose about it if the user wants that. */ | |
1007 | ||
1008 | static void | |
1009 | hpread_psymtab_to_symtab (pst) | |
1010 | struct partial_symtab *pst; | |
1011 | { | |
1012 | /* Get out quick if given junk. */ | |
1013 | if (!pst) | |
1014 | return; | |
1015 | ||
1016 | /* Sanity check. */ | |
1017 | if (pst->readin) | |
1018 | { | |
1019 | fprintf (stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |
1020 | pst->filename); | |
1021 | return; | |
1022 | } | |
1023 | ||
1024 | if (LDSYMLEN (pst) || pst->number_of_dependencies) | |
1025 | { | |
1026 | /* Print the message now, before reading the string table, | |
1027 | to avoid disconcerting pauses. */ | |
1028 | if (info_verbose) | |
1029 | { | |
1030 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |
1031 | fflush (stdout); | |
1032 | } | |
1033 | ||
1034 | hpread_psymtab_to_symtab_1 (pst); | |
1035 | ||
1036 | /* Match with global symbols. This only needs to be done once, | |
1037 | after all of the symtabs and dependencies have been read in. */ | |
1038 | scan_file_globals (pst->objfile); | |
1039 | ||
1040 | /* Finish up the debug error message. */ | |
1041 | if (info_verbose) | |
1042 | printf_filtered ("done.\n"); | |
1043 | } | |
1044 | } | |
1045 | /* Read in a defined section of a specific object file's symbols. | |
1046 | ||
1047 | DESC is the file descriptor for the file, positioned at the | |
1048 | beginning of the symtab | |
1049 | SYM_OFFSET is the offset within the file of | |
1050 | the beginning of the symbols we want to read | |
1051 | SYM_SIZE is the size of the symbol info to read in. | |
1052 | TEXT_OFFSET is the beginning of the text segment we are reading symbols for | |
1053 | TEXT_SIZE is the size of the text segment read in. | |
1054 | SECTION_OFFSETS are the relocation offsets which get added to each symbol. */ | |
1055 | ||
1056 | static struct symtab * | |
1057 | hpread_expand_symtab (objfile, sym_offset, sym_size, text_offset, text_size, | |
1058 | section_offsets, filename) | |
1059 | struct objfile *objfile; | |
1060 | int sym_offset; | |
1061 | int sym_size; | |
1062 | CORE_ADDR text_offset; | |
1063 | int text_size; | |
1064 | struct section_offsets *section_offsets; | |
1065 | char *filename; | |
1066 | { | |
1067 | char *namestring; | |
1068 | union dnttentry *dn_bufp; | |
1069 | unsigned max_symnum; | |
1070 | ||
1071 | int sym_index = sym_offset / DNTTBLOCKSIZE; | |
1072 | ||
1073 | current_objfile = objfile; | |
1074 | subfile_stack = 0; | |
1075 | ||
1076 | last_source_file = 0; | |
1077 | ||
1078 | dn_bufp = hpread_get_lntt (sym_index, objfile); | |
1079 | if (!((dn_bufp->dblock.kind == (unsigned char) K_SRCFILE) || | |
1080 | (dn_bufp->dblock.kind == (unsigned char) K_MODULE))) | |
1081 | start_symtab ("globals", NULL, 0); | |
1082 | ||
1083 | max_symnum = sym_size / DNTTBLOCKSIZE; | |
1084 | ||
1085 | /* Read in and process each debug symbol within the specified range. */ | |
1086 | for (symnum = 0; | |
1087 | symnum < max_symnum; | |
1088 | symnum++) | |
1089 | { | |
1090 | QUIT; /* Allow this to be interruptable */ | |
1091 | dn_bufp = hpread_get_lntt (sym_index + symnum, objfile); | |
1092 | ||
1093 | if (dn_bufp->dblock.extension) | |
1094 | continue; | |
1095 | ||
1096 | /* Yow! We call SET_NAMESTRING on things without names! */ | |
1097 | SET_NAMESTRING (dn_bufp, &namestring, objfile); | |
1098 | ||
1099 | hpread_process_one_debug_symbol (dn_bufp, namestring, section_offsets, | |
1100 | objfile, text_offset, text_size, | |
1101 | filename, symnum + sym_index); | |
1102 | } | |
1103 | ||
1104 | current_objfile = NULL; | |
1105 | ||
1106 | return end_symtab (text_offset + text_size, 0, 0, objfile, 0); | |
1107 | } | |
1108 | \f | |
1109 | ||
1110 | /* Convert basic types from HP debug format into GDB internal format. */ | |
1111 | ||
1112 | static int | |
1113 | hpread_type_translate (typep) | |
1114 | DNTTPOINTER typep; | |
1115 | { | |
1116 | if (!typep.dntti.immediate) | |
1117 | abort (); | |
1118 | ||
1119 | switch (typep.dntti.type) | |
1120 | { | |
1121 | case T_BOOLEAN: | |
1122 | case T_BOOLEAN_S300_COMPAT: | |
1123 | case T_BOOLEAN_VAX_COMPAT: | |
1124 | return FT_BOOLEAN; | |
1125 | /* Ugh. No way to distinguish between signed and unsigned chars. */ | |
1126 | case T_CHAR: | |
1127 | case T_WIDE_CHAR: | |
1128 | return FT_CHAR; | |
1129 | case T_INT: | |
1130 | if (typep.dntti.bitlength <= 8) | |
1131 | return FT_CHAR; | |
1132 | if (typep.dntti.bitlength <= 16) | |
1133 | return FT_SHORT; | |
1134 | if (typep.dntti.bitlength <= 32) | |
1135 | return FT_INTEGER; | |
1136 | return FT_LONG_LONG; | |
1137 | case T_LONG: | |
1138 | return FT_LONG; | |
1139 | case T_UNS_LONG: | |
510ceea9 JL |
1140 | if (typep.dntti.bitlength <= 8) |
1141 | return FT_UNSIGNED_CHAR; | |
1142 | if (typep.dntti.bitlength <= 16) | |
1143 | return FT_UNSIGNED_SHORT; | |
1144 | if (typep.dntti.bitlength <= 32) | |
1145 | return FT_UNSIGNED_LONG; | |
1146 | return FT_UNSIGNED_LONG_LONG; | |
98c0e047 JL |
1147 | case T_UNS_INT: |
1148 | if (typep.dntti.bitlength <= 8) | |
1149 | return FT_UNSIGNED_CHAR; | |
1150 | if (typep.dntti.bitlength <= 16) | |
1151 | return FT_UNSIGNED_SHORT; | |
1152 | if (typep.dntti.bitlength <= 32) | |
1153 | return FT_UNSIGNED_INTEGER; | |
1154 | return FT_UNSIGNED_LONG_LONG; | |
1155 | case T_REAL: | |
1156 | case T_REAL_3000: | |
1157 | case T_DOUBLE: | |
1158 | if (typep.dntti.bitlength == 64) | |
1159 | return FT_DBL_PREC_FLOAT; | |
1160 | if (typep.dntti.bitlength == 128) | |
1161 | return FT_EXT_PREC_FLOAT; | |
1162 | return FT_FLOAT; | |
1163 | case T_COMPLEX: | |
1164 | case T_COMPLEXS3000: | |
1165 | if (typep.dntti.bitlength == 128) | |
1166 | return FT_DBL_PREC_COMPLEX; | |
1167 | if (typep.dntti.bitlength == 192) | |
1168 | return FT_EXT_PREC_COMPLEX; | |
1169 | return FT_COMPLEX; | |
1170 | case T_STRING200: | |
1171 | case T_LONGSTRING200: | |
1172 | case T_FTN_STRING_SPEC: | |
1173 | case T_MOD_STRING_SPEC: | |
1174 | case T_MOD_STRING_3000: | |
1175 | case T_FTN_STRING_S300_COMPAT: | |
1176 | case T_FTN_STRING_VAX_COMPAT: | |
1177 | return FT_STRING; | |
1178 | default: | |
1179 | abort (); | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | /* Return the type associated with the index found in HP_TYPE. */ | |
1184 | ||
1185 | static struct type ** | |
1186 | hpread_lookup_type (hp_type, objfile) | |
1187 | DNTTPOINTER hp_type; | |
1188 | struct objfile *objfile; | |
1189 | { | |
1190 | unsigned old_len; | |
1191 | int index = hp_type.dnttp.index; | |
1192 | ||
1193 | if (hp_type.dntti.immediate) | |
1194 | return NULL; | |
1195 | ||
1196 | if (index < LNTT_SYMCOUNT (objfile)) | |
1197 | { | |
1198 | if (index >= TYPE_VECTOR_LENGTH (objfile)) | |
1199 | { | |
1200 | old_len = TYPE_VECTOR_LENGTH (objfile); | |
1201 | if (old_len == 0) | |
1202 | { | |
1203 | TYPE_VECTOR_LENGTH (objfile) = 100; | |
1204 | TYPE_VECTOR (objfile) = (struct type **) | |
1205 | malloc (TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *)); | |
1206 | } | |
1207 | while (index >= TYPE_VECTOR_LENGTH (objfile)) | |
1208 | TYPE_VECTOR_LENGTH (objfile) *= 2; | |
1209 | TYPE_VECTOR (objfile) = (struct type **) | |
1210 | xrealloc ((char *) TYPE_VECTOR (objfile), | |
1211 | (TYPE_VECTOR_LENGTH (objfile) * sizeof (struct type *))); | |
1212 | memset (&TYPE_VECTOR (objfile)[old_len], 0, | |
1213 | (TYPE_VECTOR_LENGTH (objfile) - old_len) * | |
1214 | sizeof (struct type *)); | |
1215 | } | |
1216 | return &TYPE_VECTOR (objfile)[index]; | |
1217 | } | |
1218 | else | |
1219 | return NULL; | |
1220 | } | |
1221 | ||
1222 | /* Possibly allocate a GDB internal type so we can internalize HP_TYPE. | |
1223 | Note we'll just return the address of a GDB internal type if we already | |
1224 | have it lying around. */ | |
1225 | ||
1226 | static struct type * | |
1227 | hpread_alloc_type (hp_type, objfile) | |
1228 | DNTTPOINTER hp_type; | |
1229 | struct objfile *objfile; | |
1230 | { | |
1231 | struct type **type_addr; | |
1232 | ||
1233 | type_addr = hpread_lookup_type (hp_type, objfile); | |
1234 | if (*type_addr == 0) | |
1235 | *type_addr = alloc_type (objfile); | |
1236 | ||
1237 | TYPE_CPLUS_SPECIFIC (*type_addr) | |
1238 | = (struct cplus_struct_type *) &cplus_struct_default; | |
1239 | return *type_addr; | |
1240 | } | |
1241 | ||
1242 | /* Read a native enumerated type and return it in GDB internal form. */ | |
1243 | ||
1244 | static struct type * | |
1245 | hpread_read_enum_type (hp_type, dn_bufp, objfile) | |
1246 | DNTTPOINTER hp_type; | |
1247 | union dnttentry *dn_bufp; | |
1248 | struct objfile *objfile; | |
1249 | { | |
1250 | struct type *type; | |
1251 | struct pending **symlist, *osyms, *syms; | |
1252 | int o_nsyms, nsyms = 0; | |
1253 | DNTTPOINTER mem; | |
1254 | union dnttentry *memp; | |
1255 | char *name; | |
1256 | long n; | |
1257 | struct symbol *sym; | |
1258 | ||
1259 | type = hpread_alloc_type (hp_type, objfile); | |
1260 | TYPE_LENGTH (type) = 4; | |
1261 | ||
1262 | symlist = &file_symbols; | |
1263 | osyms = *symlist; | |
1264 | o_nsyms = osyms ? osyms->nsyms : 0; | |
1265 | ||
1266 | /* Get a name for each member and add it to our list of members. */ | |
1267 | mem = dn_bufp->denum.firstmem; | |
1268 | while (mem.dnttp.extension && mem.word != DNTTNIL) | |
1269 | { | |
1270 | memp = hpread_get_lntt (mem.dnttp.index, objfile); | |
1271 | ||
1272 | name = VT (objfile) + memp->dmember.name; | |
1273 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, | |
1274 | sizeof (struct symbol)); | |
1275 | memset (sym, 0, sizeof (struct symbol)); | |
1276 | SYMBOL_NAME (sym) = name; | |
1277 | SYMBOL_CLASS (sym) = LOC_CONST; | |
1278 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1279 | SYMBOL_VALUE (sym) = memp->dmember.value; | |
1280 | add_symbol_to_list (sym, symlist); | |
1281 | nsyms++; | |
1282 | mem = memp->dmember.nextmem; | |
1283 | } | |
1284 | ||
1285 | /* Now that we know more about the enum, fill in more info. */ | |
1286 | TYPE_CODE (type) = TYPE_CODE_ENUM; | |
1287 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; | |
1288 | TYPE_NFIELDS (type) = nsyms; | |
1289 | TYPE_FIELDS (type) = (struct field *) | |
1290 | obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nsyms); | |
1291 | ||
1292 | /* Find the symbols for the members and put them into the type. | |
1293 | The symbols can be found in the symlist that we put them on | |
1294 | to cause them to be defined. osyms contains the old value | |
1295 | of that symlist; everything up to there was defined by us. | |
1296 | ||
1297 | Note that we preserve the order of the enum constants, so | |
1298 | that in something like "enum {FOO, LAST_THING=FOO}" we print | |
1299 | FOO, not LAST_THING. */ | |
1300 | for (syms = *symlist, n = 0; syms; syms = syms->next) | |
1301 | { | |
1302 | int j = 0; | |
1303 | if (syms == osyms) | |
1304 | j = o_nsyms; | |
1305 | for (; j < syms->nsyms; j++, n++) | |
1306 | { | |
1307 | struct symbol *xsym = syms->symbol[j]; | |
1308 | SYMBOL_TYPE (xsym) = type; | |
1309 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); | |
1310 | TYPE_FIELD_VALUE (type, n) = 0; | |
1311 | TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym); | |
1312 | TYPE_FIELD_BITSIZE (type, n) = 0; | |
1313 | } | |
1314 | if (syms == osyms) | |
1315 | break; | |
1316 | } | |
1317 | ||
1318 | return type; | |
1319 | } | |
1320 | ||
1321 | /* Read and internalize a native function debug symbol. */ | |
1322 | ||
1323 | static struct type * | |
1324 | hpread_read_function_type (hp_type, dn_bufp, objfile) | |
1325 | DNTTPOINTER hp_type; | |
1326 | union dnttentry *dn_bufp; | |
1327 | struct objfile *objfile; | |
1328 | { | |
1329 | struct type *type, *type1; | |
1330 | struct pending **symlist, *osyms, *syms; | |
1331 | int o_nsyms, nsyms = 0; | |
1332 | DNTTPOINTER param; | |
1333 | union dnttentry *paramp; | |
1334 | char *name; | |
1335 | long n; | |
1336 | struct symbol *sym; | |
1337 | ||
1338 | param = dn_bufp->dfunc.firstparam; | |
1339 | ||
1340 | /* See if we've already read in this type. */ | |
1341 | type = hpread_alloc_type (hp_type, objfile); | |
1342 | if (TYPE_CODE (type) == TYPE_CODE_FUNC) | |
1343 | return type; | |
1344 | ||
1345 | /* Nope, so read it in and store it away. */ | |
1346 | type1 = lookup_function_type (hpread_type_lookup (dn_bufp->dfunc.retval, | |
1347 | objfile)); | |
1348 | memcpy ((char *) type, (char *) type1, sizeof (struct type)); | |
1349 | ||
1350 | symlist = &local_symbols; | |
1351 | osyms = *symlist; | |
1352 | o_nsyms = osyms ? osyms->nsyms : 0; | |
1353 | ||
1354 | /* Now examine each parameter noting its type, location, and a | |
1355 | wealth of other information. */ | |
1356 | while (param.word && param.word != DNTTNIL) | |
1357 | { | |
1358 | paramp = hpread_get_lntt (param.dnttp.index, objfile); | |
1359 | nsyms++; | |
1360 | param = paramp->dfparam.nextparam; | |
1361 | ||
1362 | /* Get the name. */ | |
1363 | name = VT (objfile) + paramp->dfparam.name; | |
1364 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, | |
1365 | sizeof (struct symbol)); | |
1366 | (void) memset (sym, 0, sizeof (struct symbol)); | |
1367 | SYMBOL_NAME (sym) = name; | |
1368 | ||
1369 | /* Figure out where it lives. */ | |
1370 | if (paramp->dfparam.regparam) | |
1371 | SYMBOL_CLASS (sym) = LOC_REGPARM; | |
1372 | else if (paramp->dfparam.indirect) | |
1373 | SYMBOL_CLASS (sym) = LOC_REF_ARG; | |
1374 | else | |
1375 | SYMBOL_CLASS (sym) = LOC_ARG; | |
1376 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1377 | if (paramp->dfparam.copyparam) | |
1378 | { | |
1379 | SYMBOL_VALUE (sym) = paramp->dfparam.location ; | |
1380 | #ifdef HPREAD_ADJUST_STACK_ADDRESS | |
1381 | SYMBOL_VALUE (sym) | |
1382 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); | |
1383 | #endif | |
1384 | /* This is likely a pass-by-invisible reference parameter, | |
1385 | Hack on the symbol class to make GDB happy. */ | |
1386 | SYMBOL_CLASS (sym) = LOC_REGPARM_ADDR; | |
1387 | } | |
1388 | else | |
1389 | SYMBOL_VALUE (sym) = paramp->dfparam.location; | |
1390 | ||
1391 | /* Get its type. */ | |
1392 | SYMBOL_TYPE (sym) = hpread_type_lookup (paramp->dfparam.type, objfile); | |
1393 | ||
1394 | /* Add it to the list. */ | |
1395 | add_symbol_to_list (sym, symlist); | |
1396 | } | |
1397 | ||
1398 | /* Note how many parameters we found. */ | |
1399 | TYPE_NFIELDS (type) = nsyms; | |
1400 | TYPE_FIELDS (type) = (struct field *) | |
1401 | obstack_alloc (&objfile->type_obstack, | |
1402 | sizeof (struct field) * nsyms); | |
1403 | ||
1404 | /* Find the symbols for the values and put them into the type. | |
1405 | The symbols can be found in the symlist that we put them on | |
1406 | to cause them to be defined. osyms contains the old value | |
1407 | of that symlist; everything up to there was defined by us. */ | |
1408 | /* Note that we preserve the order of the parameters, so | |
1409 | that in something like "enum {FOO, LAST_THING=FOO}" we print | |
1410 | FOO, not LAST_THING. */ | |
1411 | for (syms = *symlist, n = 0; syms; syms = syms->next) | |
1412 | { | |
1413 | int j = 0; | |
1414 | if (syms == osyms) | |
1415 | j = o_nsyms; | |
1416 | for (; j < syms->nsyms; j++, n++) | |
1417 | { | |
1418 | struct symbol *xsym = syms->symbol[j]; | |
1419 | TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym); | |
1420 | TYPE_FIELD_TYPE (type, n) = SYMBOL_TYPE (xsym); | |
1421 | TYPE_FIELD_BITPOS (type, n) = n; | |
1422 | TYPE_FIELD_BITSIZE (type, n) = 0; | |
1423 | } | |
1424 | if (syms == osyms) | |
1425 | break; | |
1426 | } | |
1427 | return type; | |
1428 | } | |
1429 | ||
1430 | /* Read in and internalize a structure definition. */ | |
1431 | ||
1432 | static struct type * | |
1433 | hpread_read_struct_type (hp_type, dn_bufp, objfile) | |
1434 | DNTTPOINTER hp_type; | |
1435 | union dnttentry *dn_bufp; | |
1436 | struct objfile *objfile; | |
1437 | { | |
1438 | struct nextfield | |
1439 | { | |
1440 | struct nextfield *next; | |
1441 | struct field field; | |
1442 | }; | |
1443 | ||
1444 | struct type *type; | |
1445 | struct nextfield *list = 0; | |
1446 | struct nextfield *new; | |
1447 | int n, nfields = 0; | |
1448 | DNTTPOINTER field; | |
1449 | union dnttentry *fieldp; | |
1450 | ||
1451 | /* Is it something we've already dealt with? */ | |
1452 | type = hpread_alloc_type (hp_type, objfile); | |
1453 | if ((TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
1454 | (TYPE_CODE (type) == TYPE_CODE_UNION)) | |
1455 | return type; | |
1456 | ||
1457 | /* Get the basic type correct. */ | |
1458 | if (dn_bufp->dblock.kind == K_STRUCT) | |
1459 | { | |
1460 | TYPE_CODE (type) = TYPE_CODE_STRUCT; | |
1461 | TYPE_LENGTH (type) = dn_bufp->dstruct.bitlength / 8; | |
1462 | } | |
1463 | else if (dn_bufp->dblock.kind == K_UNION) | |
1464 | { | |
1465 | TYPE_CODE (type) = TYPE_CODE_UNION; | |
1466 | TYPE_LENGTH (type) = dn_bufp->dunion.bitlength / 8; | |
1467 | } | |
1468 | else | |
1469 | return type; | |
1470 | ||
1471 | ||
1472 | TYPE_FLAGS (type) &= ~TYPE_FLAG_STUB; | |
1473 | ||
1474 | /* Read in and internalize all the fields. */ | |
1475 | field = dn_bufp->dstruct.firstfield; | |
1476 | while (field.word != DNTTNIL && field.dnttp.extension) | |
1477 | { | |
1478 | fieldp = hpread_get_lntt (field.dnttp.index, objfile); | |
1479 | ||
1480 | /* Get space to record the next field's data. */ | |
1481 | new = (struct nextfield *) alloca (sizeof (struct nextfield)); | |
1482 | new->next = list; | |
1483 | list = new; | |
1484 | ||
1485 | list->field.name = VT (objfile) + fieldp->dfield.name; | |
1486 | list->field.bitpos = fieldp->dfield.bitoffset; | |
1487 | if (fieldp->dfield.bitlength % 8) | |
1488 | list->field.bitsize = fieldp->dfield.bitlength; | |
1489 | else | |
1490 | list->field.bitsize = 0; | |
1491 | nfields++; | |
1492 | field = fieldp->dfield.nextfield; | |
1493 | list->field.type = hpread_type_lookup (fieldp->dfield.type, objfile); | |
1494 | } | |
1495 | ||
1496 | TYPE_NFIELDS (type) = nfields; | |
1497 | TYPE_FIELDS (type) = (struct field *) | |
1498 | obstack_alloc (&objfile->type_obstack, sizeof (struct field) * nfields); | |
1499 | ||
1500 | /* Copy the saved-up fields into the field vector. */ | |
1501 | for (n = nfields; list; list = list->next) | |
1502 | { | |
1503 | n -= 1; | |
1504 | TYPE_FIELD (type, n) = list->field; | |
1505 | } | |
1506 | return type; | |
1507 | } | |
1508 | ||
1509 | /* Read in and internalize a set debug symbol. */ | |
1510 | ||
1511 | static struct type * | |
1512 | hpread_read_set_type (hp_type, dn_bufp, objfile) | |
1513 | DNTTPOINTER hp_type; | |
1514 | union dnttentry *dn_bufp; | |
1515 | struct objfile *objfile; | |
1516 | { | |
1517 | struct type *type; | |
1518 | ||
1519 | /* See if it's something we've already deal with. */ | |
1520 | type = hpread_alloc_type (hp_type, objfile); | |
1521 | if (TYPE_CODE (type) == TYPE_CODE_SET) | |
1522 | return type; | |
1523 | ||
1524 | /* Nope. Fill in the appropriate fields. */ | |
1525 | TYPE_CODE (type) = TYPE_CODE_SET; | |
1526 | TYPE_LENGTH (type) = dn_bufp->dset.bitlength / 8; | |
1527 | TYPE_NFIELDS (type) = 0; | |
1528 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dset.subtype, | |
1529 | objfile); | |
1530 | return type; | |
1531 | } | |
1532 | ||
1533 | /* Read in and internalize an array debug symbol. */ | |
1534 | ||
1535 | static struct type * | |
1536 | hpread_read_array_type (hp_type, dn_bufp, objfile) | |
1537 | DNTTPOINTER hp_type; | |
1538 | union dnttentry *dn_bufp; | |
1539 | struct objfile *objfile; | |
1540 | { | |
1541 | struct type *type; | |
1542 | union dnttentry save; | |
1543 | save = *dn_bufp; | |
1544 | ||
1545 | /* Why no check here? Because it kept us from properly determining | |
1546 | the size of the array! */ | |
1547 | type = hpread_alloc_type (hp_type, objfile); | |
1548 | ||
1549 | TYPE_CODE (type) = TYPE_CODE_ARRAY; | |
1550 | ||
1551 | /* values are not normalized. */ | |
1552 | if (!((dn_bufp->darray.arrayisbytes && dn_bufp->darray.elemisbytes) | |
1553 | || (!dn_bufp->darray.arrayisbytes && !dn_bufp->darray.elemisbytes))) | |
1554 | abort (); | |
1555 | else if (dn_bufp->darray.arraylength == 0x7fffffff) | |
1556 | { | |
1557 | /* The HP debug format represents char foo[]; as an array with | |
1558 | length 0x7fffffff. Internally GDB wants to represent this | |
e042d326 JL |
1559 | as an array of length zero. */ |
1560 | TYPE_LENGTH (type) = 0; | |
98c0e047 JL |
1561 | } |
1562 | else | |
1563 | TYPE_LENGTH (type) = dn_bufp->darray.arraylength / 8; | |
1564 | ||
1565 | TYPE_NFIELDS (type) = 1; | |
1566 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->darray.elemtype, | |
1567 | objfile); | |
1568 | dn_bufp = &save; | |
1569 | TYPE_FIELDS (type) = (struct field *) | |
1570 | obstack_alloc (&objfile->type_obstack, sizeof (struct field)); | |
1571 | TYPE_FIELD_TYPE (type, 0) = hpread_type_lookup (dn_bufp->darray.indextype, | |
1572 | objfile); | |
1573 | return type; | |
1574 | } | |
1575 | ||
1576 | /* Read in and internalize a subrange debug symbol. */ | |
1577 | static struct type * | |
1578 | hpread_read_subrange_type (hp_type, dn_bufp, objfile) | |
1579 | DNTTPOINTER hp_type; | |
1580 | union dnttentry *dn_bufp; | |
1581 | struct objfile *objfile; | |
1582 | { | |
1583 | struct type *type; | |
1584 | ||
1585 | /* Is it something we've already dealt with. */ | |
1586 | type = hpread_alloc_type (hp_type, objfile); | |
1587 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1588 | return type; | |
1589 | ||
1590 | /* Nope, internalize it. */ | |
1591 | TYPE_CODE (type) = TYPE_CODE_RANGE; | |
1592 | TYPE_LENGTH (type) = dn_bufp->dsubr.bitlength / 8; | |
1593 | TYPE_NFIELDS (type) = 2; | |
1594 | TYPE_FIELDS (type) = (struct field *) obstack_alloc | |
1595 | (&objfile->type_obstack, 2 * sizeof (struct field)); | |
1596 | ||
1597 | if (dn_bufp->dsubr.dyn_low) | |
1598 | TYPE_FIELD_BITPOS (type, 0) = 0; | |
1599 | else | |
1600 | TYPE_FIELD_BITPOS (type, 0) = dn_bufp->dsubr.lowbound; | |
1601 | ||
1602 | if (dn_bufp->dsubr.dyn_high) | |
1603 | TYPE_FIELD_BITPOS (type, 1) = -1; | |
1604 | else | |
1605 | TYPE_FIELD_BITPOS (type, 1) = dn_bufp->dsubr.highbound; | |
1606 | TYPE_TARGET_TYPE (type) = hpread_type_lookup (dn_bufp->dsubr.subtype, | |
1607 | objfile); | |
1608 | return type; | |
1609 | } | |
1610 | ||
1611 | static struct type * | |
1612 | hpread_type_lookup (hp_type, objfile) | |
1613 | DNTTPOINTER hp_type; | |
1614 | struct objfile *objfile; | |
1615 | { | |
1616 | union dnttentry *dn_bufp; | |
1617 | ||
1618 | /* First see if it's a simple builtin type. */ | |
1619 | if (hp_type.dntti.immediate) | |
1620 | return lookup_fundamental_type (objfile, hpread_type_translate (hp_type)); | |
1621 | ||
1622 | /* Not a builtin type. We'll have to read it in. */ | |
1623 | if (hp_type.dnttp.index < LNTT_SYMCOUNT (objfile)) | |
1624 | dn_bufp = hpread_get_lntt (hp_type.dnttp.index, objfile); | |
1625 | else | |
1626 | return lookup_fundamental_type (objfile, FT_VOID); | |
1627 | ||
1628 | switch (dn_bufp->dblock.kind) | |
1629 | { | |
1630 | case K_SRCFILE: | |
1631 | case K_MODULE: | |
1632 | case K_FUNCTION: | |
1633 | case K_ENTRY: | |
1634 | case K_BEGIN: | |
1635 | case K_END: | |
1636 | case K_IMPORT: | |
1637 | case K_LABEL: | |
1638 | case K_WITH: | |
1639 | case K_COMMON: | |
1640 | case K_FPARAM: | |
1641 | case K_SVAR: | |
1642 | case K_DVAR: | |
1643 | case K_CONST: | |
1644 | /* Opps. Something went very wrong. */ | |
1645 | return lookup_fundamental_type (objfile, FT_VOID); | |
1646 | ||
1647 | case K_TYPEDEF: | |
1648 | { | |
1649 | struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type, | |
1650 | objfile); | |
1651 | char *suffix; | |
1652 | suffix = VT (objfile) + dn_bufp->dtype.name; | |
1653 | ||
1654 | TYPE_CPLUS_SPECIFIC (structtype) | |
1655 | = (struct cplus_struct_type *) &cplus_struct_default; | |
1656 | TYPE_NAME (structtype) = suffix; | |
1657 | return structtype; | |
1658 | } | |
1659 | ||
1660 | case K_TAGDEF: | |
1661 | { | |
1662 | /* Just a little different from above. We have to tack on | |
1663 | an identifier of some kind (struct, union, enum, etc). */ | |
1664 | struct type *structtype = hpread_type_lookup (dn_bufp->dtype.type, | |
1665 | objfile); | |
1666 | char *prefix, *suffix; | |
1667 | suffix = VT (objfile) + dn_bufp->dtype.name; | |
1668 | ||
1669 | /* Lookup the next type in the list. It should be a structure, | |
1670 | union, or enum type. We will need to attach that to our name. */ | |
1671 | if (dn_bufp->dtype.type.dnttp.index < LNTT_SYMCOUNT (objfile)) | |
1672 | dn_bufp = hpread_get_lntt (dn_bufp->dtype.type.dnttp.index, objfile); | |
1673 | else | |
1674 | abort (); | |
1675 | ||
1676 | if (dn_bufp->dblock.kind == K_STRUCT) | |
1677 | prefix = "struct "; | |
1678 | else if (dn_bufp->dblock.kind == K_UNION) | |
1679 | prefix = "union "; | |
1680 | else | |
1681 | prefix = "enum "; | |
1682 | ||
1683 | /* Build the correct name. */ | |
1684 | structtype->name | |
1685 | = (char *) obstack_alloc (&objfile->type_obstack, | |
1686 | strlen (prefix) + strlen (suffix) + 1); | |
1687 | TYPE_NAME (structtype) = strcpy (TYPE_NAME (structtype), prefix); | |
1688 | TYPE_NAME (structtype) = strcat (TYPE_NAME (structtype), suffix); | |
1689 | TYPE_TAG_NAME (structtype) = suffix; | |
1690 | ||
1691 | TYPE_CPLUS_SPECIFIC (structtype) | |
1692 | = (struct cplus_struct_type *) &cplus_struct_default; | |
1693 | ||
1694 | return structtype; | |
1695 | } | |
1696 | case K_POINTER: | |
1697 | return lookup_pointer_type (hpread_type_lookup (dn_bufp->dptr.pointsto, | |
1698 | objfile)); | |
1699 | case K_ENUM: | |
1700 | return hpread_read_enum_type (hp_type, dn_bufp, objfile); | |
1701 | case K_MEMENUM: | |
1702 | return lookup_fundamental_type (objfile, FT_VOID); | |
1703 | case K_SET: | |
1704 | return hpread_read_set_type (hp_type, dn_bufp, objfile); | |
1705 | case K_SUBRANGE: | |
1706 | return hpread_read_subrange_type (hp_type, dn_bufp, objfile); | |
1707 | case K_ARRAY: | |
1708 | return hpread_read_array_type (hp_type, dn_bufp, objfile); | |
1709 | case K_STRUCT: | |
1710 | case K_UNION: | |
1711 | return hpread_read_struct_type (hp_type, dn_bufp, objfile); | |
1712 | case K_FIELD: | |
1713 | return hpread_type_lookup (dn_bufp->dfield.type, objfile); | |
1714 | case K_VARIANT: | |
1715 | case K_FILE: | |
1716 | return lookup_fundamental_type (objfile, FT_VOID); | |
1717 | case K_FUNCTYPE: | |
1718 | return lookup_function_type (hpread_type_lookup (dn_bufp->dfunctype.retval, | |
1719 | objfile)); | |
1720 | case K_COBSTRUCT: | |
1721 | case K_XREF: | |
1722 | case K_SA: | |
1723 | case K_MACRO: | |
1724 | default: | |
1725 | return lookup_fundamental_type (objfile, FT_VOID); | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | static SLTPOINTER | |
1730 | hpread_record_lines (subfile, s_idx, e_idx, objfile) | |
1731 | struct subfile *subfile; | |
1732 | SLTPOINTER s_idx, e_idx; | |
1733 | struct objfile *objfile; | |
1734 | { | |
1735 | union sltentry *sl_bufp; | |
1736 | ||
1737 | while (s_idx <= e_idx) | |
1738 | { | |
1739 | sl_bufp = hpread_get_slt (s_idx, objfile); | |
1740 | /* Only record "normal" entries in the SLT. */ | |
1741 | if (sl_bufp->snorm.sltdesc == SLT_NORMAL | |
1742 | || sl_bufp->snorm.sltdesc == SLT_EXIT) | |
1743 | record_line (subfile, sl_bufp->snorm.line, sl_bufp->snorm.address); | |
1744 | s_idx++; | |
1745 | } | |
1746 | return e_idx; | |
1747 | } | |
1748 | ||
1749 | /* Internalize one native debug symbol. */ | |
1750 | ||
1751 | static void | |
1752 | hpread_process_one_debug_symbol (dn_bufp, name, section_offsets, objfile, | |
1753 | text_offset, text_size, filename, index) | |
1754 | union dnttentry *dn_bufp; | |
1755 | char *name; | |
1756 | struct section_offsets *section_offsets; | |
1757 | struct objfile *objfile; | |
1758 | CORE_ADDR text_offset; | |
1759 | int text_size; | |
1760 | char *filename; | |
1761 | int index; | |
1762 | { | |
1763 | unsigned long desc; | |
1764 | int type; | |
1765 | CORE_ADDR valu; | |
1766 | int offset = ANOFFSET (section_offsets, SECT_OFF_TEXT); | |
1767 | union dnttentry *dn_temp; | |
1768 | DNTTPOINTER hp_type; | |
1769 | struct symbol *sym; | |
1770 | struct context_stack *new; | |
98c0e047 JL |
1771 | |
1772 | /* Allocate one GDB debug symbol and fill in some default values. */ | |
1773 | sym = (struct symbol *) obstack_alloc (&objfile->symbol_obstack, | |
1774 | sizeof (struct symbol)); | |
1775 | memset (sym, 0, sizeof (struct symbol)); | |
1776 | SYMBOL_NAME (sym) = name; | |
1777 | SYMBOL_LANGUAGE (sym) = language_auto; | |
1778 | SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack); | |
1779 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1780 | SYMBOL_LINE (sym) = 0; | |
1781 | SYMBOL_VALUE (sym) = 0; | |
1782 | SYMBOL_CLASS (sym) = LOC_TYPEDEF; | |
1783 | ||
1784 | hp_type.dnttp.extension = 1; | |
1785 | hp_type.dnttp.immediate = 0; | |
1786 | hp_type.dnttp.global = 0; | |
1787 | hp_type.dnttp.index = index; | |
1788 | ||
1789 | type = dn_bufp->dblock.kind; | |
1790 | ||
1791 | switch (type) | |
1792 | { | |
1793 | case K_SRCFILE: | |
1794 | /* This type of symbol indicates from which source file or include file | |
1795 | the following data comes. If there are no modules it also may | |
1796 | indicate the start of a new source file, in which case we must | |
1797 | finish the symbol table of the previous source file | |
1798 | (if any) and start accumulating a new symbol table. */ | |
1799 | ||
1800 | valu = text_offset + offset; /* Relocate for dynamic loading */ | |
38ab0632 JL |
1801 | if (!last_source_file) |
1802 | start_symtab (name, NULL, valu); | |
98c0e047 | 1803 | |
38ab0632 JL |
1804 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, |
1805 | SL_INDEX (objfile), | |
1806 | dn_bufp->dsfile.address, | |
1807 | objfile); | |
1808 | start_subfile (name, NULL); | |
98c0e047 | 1809 | break; |
38ab0632 | 1810 | |
98c0e047 | 1811 | case K_MODULE: |
38ab0632 | 1812 | /* No need to do anything with these K_MODULE symbols anymore. */ |
98c0e047 JL |
1813 | break; |
1814 | ||
1815 | case K_FUNCTION: | |
1816 | case K_ENTRY: | |
1817 | /* A function or secondary entry point. */ | |
1818 | valu = dn_bufp->dfunc.lowaddr + offset; | |
1819 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, | |
1820 | SL_INDEX (objfile), | |
1821 | dn_bufp->dfunc.address, | |
1822 | objfile); | |
1823 | ||
1824 | WITHIN_FUNCTION (objfile) = 1; | |
1825 | CURRENT_FUNCTION_VALUE (objfile) = valu; | |
1826 | ||
1827 | /* Stack must be empty now. */ | |
1828 | if (context_stack_depth != 0) | |
1829 | complain (&lbrac_unmatched_complaint, (char *) symnum); | |
1830 | new = push_context (0, valu); | |
1831 | ||
1832 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
1833 | SYMBOL_TYPE (sym) = hpread_read_function_type (hp_type, dn_bufp, objfile); | |
1834 | if (dn_bufp->dfunc.public) | |
1835 | add_symbol_to_list (sym, &global_symbols); | |
1836 | else | |
1837 | add_symbol_to_list (sym, &file_symbols); | |
1838 | new->name = sym; | |
1839 | ||
1840 | /* Search forward to the next scope beginning. */ | |
1841 | while (dn_bufp->dblock.kind != K_BEGIN) | |
1842 | { | |
1843 | dn_bufp = hpread_get_lntt (++index, objfile); | |
1844 | if (dn_bufp->dblock.extension) | |
1845 | continue; | |
1846 | } | |
1847 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, | |
1848 | SL_INDEX (objfile), | |
1849 | dn_bufp->dbegin.address, | |
1850 | objfile); | |
1851 | SYMBOL_LINE (sym) = hpread_get_line (dn_bufp->dbegin.address, objfile); | |
1852 | record_line (current_subfile, SYMBOL_LINE (sym), valu); | |
1853 | break; | |
1854 | ||
1855 | case K_BEGIN: | |
1856 | /* Begin a new scope. */ | |
1857 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, | |
1858 | SL_INDEX (objfile), | |
1859 | dn_bufp->dbegin.address, | |
1860 | objfile); | |
1861 | valu = hpread_get_location (dn_bufp->dbegin.address, objfile); | |
1862 | valu += offset; /* Relocate for dynamic loading */ | |
1863 | desc = hpread_get_depth (dn_bufp->dbegin.address, objfile); | |
1864 | new = push_context (desc, valu); | |
1865 | break; | |
1866 | ||
1867 | case K_END: | |
1868 | /* End a scope. */ | |
1869 | SL_INDEX (objfile) = hpread_record_lines (current_subfile, | |
1870 | SL_INDEX (objfile), | |
1871 | dn_bufp->dend.address + 1, | |
1872 | objfile); | |
1873 | switch (dn_bufp->dend.endkind) | |
1874 | { | |
1875 | case K_MODULE: | |
1876 | /* Ending a module ends the symbol table for that module. */ | |
1877 | valu = text_offset + text_size + offset; | |
1878 | (void) end_symtab (valu, 0, 0, objfile, 0); | |
1879 | break; | |
1880 | ||
1881 | case K_FUNCTION: | |
1882 | /* Ending a function, well, ends the function's scope. */ | |
1883 | dn_temp = hpread_get_lntt (dn_bufp->dend.beginscope.dnttp.index, | |
1884 | objfile); | |
1885 | valu = dn_temp->dfunc.hiaddr + offset; | |
1886 | new = pop_context (); | |
1887 | /* Make a block for the local symbols within. */ | |
1888 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1889 | new->start_addr, valu, objfile); | |
1890 | WITHIN_FUNCTION (objfile) = 0; | |
1891 | break; | |
1892 | case K_BEGIN: | |
1893 | /* Just ending a local scope. */ | |
1894 | valu = hpread_get_location (dn_bufp->dend.address, objfile); | |
1895 | /* Why in the hell is this needed? */ | |
1896 | valu += offset + 9; /* Relocate for dynamic loading */ | |
1897 | new = pop_context (); | |
1898 | desc = dn_bufp->dend.beginscope.dnttp.index; | |
1899 | if (desc != new->depth) | |
1900 | complain (&lbrac_mismatch_complaint, (char *) symnum); | |
1901 | /* Make a block for the local symbols within. */ | |
1902 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1903 | new->start_addr, valu, objfile); | |
1904 | local_symbols = new->locals; | |
1905 | break; | |
1906 | } | |
1907 | break; | |
1908 | case K_LABEL: | |
1909 | SYMBOL_NAMESPACE (sym) = LABEL_NAMESPACE; | |
1910 | break; | |
1911 | case K_FPARAM: | |
1912 | /* Function parameters. */ | |
1913 | if (dn_bufp->dfparam.regparam) | |
1914 | SYMBOL_CLASS (sym) = LOC_REGISTER; | |
1915 | else | |
1916 | SYMBOL_CLASS (sym) = LOC_LOCAL; | |
1917 | if (dn_bufp->dfparam.copyparam) | |
1918 | { | |
1919 | SYMBOL_VALUE (sym) = dn_bufp->dfparam.location; | |
1920 | #ifdef HPREAD_ADJUST_STACK_ADDRESS | |
1921 | SYMBOL_VALUE (sym) | |
1922 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); | |
1923 | #endif | |
1924 | } | |
1925 | else | |
1926 | SYMBOL_VALUE (sym) = dn_bufp->dfparam.location; | |
1927 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dfparam.type, objfile); | |
1928 | add_symbol_to_list (sym, &local_symbols); | |
1929 | break; | |
1930 | case K_SVAR: | |
1931 | /* Static variables. */ | |
1932 | SYMBOL_CLASS (sym) = LOC_STATIC; | |
1933 | SYMBOL_VALUE_ADDRESS (sym) = dn_bufp->dsvar.location; | |
1934 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dsvar.type, objfile); | |
1935 | if (dn_bufp->dsvar.public) | |
1936 | add_symbol_to_list (sym, &global_symbols); | |
1937 | else if (WITHIN_FUNCTION (objfile)) | |
1938 | add_symbol_to_list (sym, &local_symbols); | |
1939 | else | |
1940 | add_symbol_to_list (sym, &file_symbols); | |
1941 | break; | |
1942 | case K_DVAR: | |
1943 | /* Dynamic variables. */ | |
1944 | if (dn_bufp->ddvar.regvar) | |
1945 | SYMBOL_CLASS (sym) = LOC_REGISTER; | |
1946 | else | |
1947 | SYMBOL_CLASS (sym) = LOC_LOCAL; | |
1948 | SYMBOL_VALUE (sym) = dn_bufp->ddvar.location; | |
1949 | #ifdef HPREAD_ADJUST_STACK_ADDRESS | |
1950 | SYMBOL_VALUE (sym) | |
1951 | += HPREAD_ADJUST_STACK_ADDRESS (CURRENT_FUNCTION_VALUE (objfile)); | |
1952 | #endif | |
1953 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->ddvar.type, objfile); | |
1954 | if (dn_bufp->ddvar.public) | |
1955 | add_symbol_to_list (sym, &global_symbols); | |
1956 | else if (WITHIN_FUNCTION (objfile)) | |
1957 | add_symbol_to_list (sym, &local_symbols); | |
1958 | else | |
1959 | add_symbol_to_list (sym, &file_symbols); | |
1960 | break; | |
1961 | case K_CONST: | |
1962 | /* A constant (pascal?). */ | |
1963 | SYMBOL_CLASS (sym) = LOC_CONST; | |
1964 | SYMBOL_VALUE (sym) = dn_bufp->dconst.location; | |
1965 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dconst.type, objfile); | |
1966 | if (dn_bufp->dconst.public) | |
1967 | add_symbol_to_list (sym, &global_symbols); | |
1968 | else if (WITHIN_FUNCTION (objfile)) | |
1969 | add_symbol_to_list (sym, &local_symbols); | |
1970 | else | |
1971 | add_symbol_to_list (sym, &file_symbols); | |
1972 | break; | |
1973 | case K_TYPEDEF: | |
1974 | SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; | |
1975 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile); | |
1976 | if (dn_bufp->dtype.public) | |
1977 | add_symbol_to_list (sym, &global_symbols); | |
1978 | else if (WITHIN_FUNCTION (objfile)) | |
1979 | add_symbol_to_list (sym, &local_symbols); | |
1980 | else | |
1981 | add_symbol_to_list (sym, &file_symbols); | |
1982 | break; | |
1983 | case K_TAGDEF: | |
1984 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; | |
1985 | SYMBOL_TYPE (sym) = hpread_type_lookup (dn_bufp->dtype.type, objfile); | |
1986 | TYPE_NAME (sym->type) = SYMBOL_NAME (sym); | |
1987 | TYPE_TAG_NAME (sym->type) = SYMBOL_NAME (sym); | |
1988 | if (dn_bufp->dtype.public) | |
1989 | add_symbol_to_list (sym, &global_symbols); | |
1990 | else if (WITHIN_FUNCTION (objfile)) | |
1991 | add_symbol_to_list (sym, &local_symbols); | |
1992 | else | |
1993 | add_symbol_to_list (sym, &file_symbols); | |
1994 | break; | |
1995 | case K_POINTER: | |
1996 | SYMBOL_TYPE (sym) = lookup_pointer_type (hpread_type_lookup | |
1997 | (dn_bufp->dptr.pointsto, | |
1998 | objfile)); | |
1999 | add_symbol_to_list (sym, &file_symbols); | |
2000 | break; | |
2001 | case K_ENUM: | |
2002 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; | |
2003 | SYMBOL_TYPE (sym) = hpread_read_enum_type (hp_type, dn_bufp, objfile); | |
2004 | add_symbol_to_list (sym, &file_symbols); | |
2005 | break; | |
2006 | case K_MEMENUM: | |
2007 | break; | |
2008 | case K_SET: | |
2009 | SYMBOL_TYPE (sym) = hpread_read_set_type (hp_type, dn_bufp, objfile); | |
2010 | add_symbol_to_list (sym, &file_symbols); | |
2011 | break; | |
2012 | case K_SUBRANGE: | |
2013 | SYMBOL_TYPE (sym) = hpread_read_subrange_type (hp_type, dn_bufp, | |
2014 | objfile); | |
2015 | add_symbol_to_list (sym, &file_symbols); | |
2016 | break; | |
2017 | case K_ARRAY: | |
2018 | SYMBOL_TYPE (sym) = hpread_read_array_type (hp_type, dn_bufp, objfile); | |
2019 | add_symbol_to_list (sym, &file_symbols); | |
2020 | break; | |
2021 | case K_STRUCT: | |
2022 | case K_UNION: | |
2023 | SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE; | |
2024 | SYMBOL_TYPE (sym) = hpread_read_struct_type (hp_type, dn_bufp, objfile); | |
2025 | add_symbol_to_list (sym, &file_symbols); | |
2026 | break; | |
2027 | default: | |
2028 | break; | |
2029 | } | |
2030 | } |