Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Read a symbol table in ECOFF format (Third-Eye). |
ee300cd4 | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
7b6bb8da JB |
4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010, |
5 | 2011 Free Software Foundation, Inc. | |
ee300cd4 | 6 | |
c906108c SS |
7 | Original version contributed by Alessandro Forin (af@cs.cmu.edu) at |
8 | CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor | |
9 | at Cygnus Support. | |
10 | ||
c5aa993b | 11 | This file is part of GDB. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is free software; you can redistribute it and/or modify |
14 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 15 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 16 | (at your option) any later version. |
c906108c | 17 | |
c5aa993b JM |
18 | This program is distributed in the hope that it will be useful, |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
c906108c | 22 | |
c5aa993b | 23 | You should have received a copy of the GNU General Public License |
a9762ec7 | 24 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
25 | |
26 | /* This module provides the function mdebug_build_psymtabs. It reads | |
27 | ECOFF debugging information into partial symbol tables. The | |
28 | debugging information is read from two structures. A struct | |
29 | ecoff_debug_swap includes the sizes of each ECOFF structure and | |
30 | swapping routines; these are fixed for a particular target. A | |
31 | struct ecoff_debug_info points to the debugging information for a | |
32 | particular object file. | |
33 | ||
34 | ECOFF symbol tables are mostly written in the byte order of the | |
35 | target machine. However, one section of the table (the auxiliary | |
36 | symbol information) is written in the host byte order. There is a | |
37 | bit in the other symbol info which describes which host byte order | |
38 | was used. ECOFF thereby takes the trophy from Intel `b.out' for | |
39 | the most brain-dead adaptation of a file format to byte order. | |
40 | ||
41 | This module can read all four of the known byte-order combinations, | |
42 | on any type of host. */ | |
43 | ||
44 | #include "defs.h" | |
45 | #include "symtab.h" | |
46 | #include "gdbtypes.h" | |
47 | #include "gdbcore.h" | |
0ba1096a | 48 | #include "filenames.h" |
c906108c | 49 | #include "objfiles.h" |
04ea0df1 | 50 | #include "gdb_obstack.h" |
c906108c SS |
51 | #include "buildsym.h" |
52 | #include "stabsread.h" | |
53 | #include "complaints.h" | |
54 | #include "demangle.h" | |
50f182aa | 55 | #include "gdb-demangle.h" |
261397f8 | 56 | #include "gdb_assert.h" |
fe898f56 | 57 | #include "block.h" |
de4f826b | 58 | #include "dictionary.h" |
5b123146 | 59 | #include "mdebugread.h" |
c906108c SS |
60 | #include "gdb_stat.h" |
61 | #include "gdb_string.h" | |
ccefe4c4 | 62 | #include "psympriv.h" |
c906108c | 63 | |
c906108c SS |
64 | #include "bfd.h" |
65 | ||
025bb325 | 66 | #include "coff/ecoff.h" /* COFF-like aspects of ecoff files. */ |
c906108c SS |
67 | |
68 | #include "libaout.h" /* Private BFD a.out information. */ | |
69 | #include "aout/aout64.h" | |
025bb325 | 70 | #include "aout/stab_gnu.h" /* STABS information. */ |
c906108c SS |
71 | |
72 | #include "expression.h" | |
c906108c | 73 | |
a14ed312 | 74 | extern void _initialize_mdebugread (void); |
c906108c | 75 | |
025bb325 | 76 | /* Provide a way to test if we have both ECOFF and ELF symbol tables. |
c906108c SS |
77 | We use this define in order to know whether we should override a |
78 | symbol's ECOFF section with its ELF section. This is necessary in | |
79 | case the symbol's ELF section could not be represented in ECOFF. */ | |
80 | #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
81 | && bfd_get_section_by_name (bfd, ".mdebug") != NULL) | |
91a81f69 TT |
82 | |
83 | /* The objfile we are currently reading. */ | |
84 | ||
dd707e8e | 85 | static struct objfile *mdebugread_objfile; |
91a81f69 | 86 | |
c906108c | 87 | \f |
c5aa993b | 88 | |
c906108c SS |
89 | /* We put a pointer to this structure in the read_symtab_private field |
90 | of the psymtab. */ | |
91 | ||
92 | struct symloc | |
c5aa993b JM |
93 | { |
94 | /* Index of the FDR that this psymtab represents. */ | |
95 | int fdr_idx; | |
96 | /* The BFD that the psymtab was created from. */ | |
97 | bfd *cur_bfd; | |
98 | const struct ecoff_debug_swap *debug_swap; | |
99 | struct ecoff_debug_info *debug_info; | |
100 | struct mdebug_pending **pending_list; | |
101 | /* Pointer to external symbols for this file. */ | |
102 | EXTR *extern_tab; | |
103 | /* Size of extern_tab. */ | |
104 | int extern_count; | |
105 | enum language pst_language; | |
106 | }; | |
c906108c SS |
107 | |
108 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) | |
109 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
110 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) | |
111 | #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap) | |
112 | #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info) | |
113 | #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list) | |
114 | ||
115 | #define SC_IS_TEXT(sc) ((sc) == scText \ | |
116 | || (sc) == scRConst \ | |
117 | || (sc) == scInit \ | |
118 | || (sc) == scFini) | |
119 | #define SC_IS_DATA(sc) ((sc) == scData \ | |
120 | || (sc) == scSData \ | |
121 | || (sc) == scRData \ | |
122 | || (sc) == scPData \ | |
123 | || (sc) == scXData) | |
124 | #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon) | |
0e931cf0 JB |
125 | #define SC_IS_BSS(sc) ((sc) == scBss) |
126 | #define SC_IS_SBSS(sc) ((sc) == scSBss) | |
c906108c | 127 | #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined) |
c906108c | 128 | \f |
025bb325 | 129 | /* Various complaints about symbol reading that don't abort the process. */ |
23136709 KB |
130 | static void |
131 | index_complaint (const char *arg1) | |
132 | { | |
e2e0b3e5 | 133 | complaint (&symfile_complaints, _("bad aux index at symbol %s"), arg1); |
23136709 | 134 | } |
c906108c | 135 | |
23136709 KB |
136 | static void |
137 | unknown_ext_complaint (const char *arg1) | |
138 | { | |
e2e0b3e5 | 139 | complaint (&symfile_complaints, _("unknown external symbol %s"), arg1); |
23136709 | 140 | } |
c906108c | 141 | |
23136709 KB |
142 | static void |
143 | basic_type_complaint (int arg1, const char *arg2) | |
144 | { | |
e2e0b3e5 | 145 | complaint (&symfile_complaints, _("cannot map ECOFF basic type 0x%x for %s"), |
23136709 KB |
146 | arg1, arg2); |
147 | } | |
c906108c | 148 | |
23136709 KB |
149 | static void |
150 | bad_tag_guess_complaint (const char *arg1) | |
151 | { | |
3e43a32a MS |
152 | complaint (&symfile_complaints, |
153 | _("guessed tag type of %s incorrectly"), arg1); | |
23136709 | 154 | } |
c906108c | 155 | |
23136709 KB |
156 | static void |
157 | bad_rfd_entry_complaint (const char *arg1, int arg2, int arg3) | |
158 | { | |
e2e0b3e5 | 159 | complaint (&symfile_complaints, _("bad rfd entry for %s: file %d, index %d"), |
23136709 KB |
160 | arg1, arg2, arg3); |
161 | } | |
c906108c | 162 | |
23136709 KB |
163 | static void |
164 | unexpected_type_code_complaint (const char *arg1) | |
165 | { | |
e2e0b3e5 | 166 | complaint (&symfile_complaints, _("unexpected type code for %s"), arg1); |
23136709 | 167 | } |
c906108c | 168 | |
025bb325 | 169 | /* Macros and extra defs. */ |
c906108c | 170 | |
025bb325 | 171 | /* Puns: hard to find whether -g was used and how. */ |
c906108c SS |
172 | |
173 | #define MIN_GLEVEL GLEVEL_0 | |
174 | #define compare_glevel(a,b) \ | |
175 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
176 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
177 | \f | |
025bb325 | 178 | /* Things that really are local to this module. */ |
c906108c | 179 | |
025bb325 | 180 | /* Remember what we deduced to be the source language of this psymtab. */ |
c906108c SS |
181 | |
182 | static enum language psymtab_language = language_unknown; | |
183 | ||
184 | /* Current BFD. */ | |
185 | ||
186 | static bfd *cur_bfd; | |
187 | ||
188 | /* How to parse debugging information for CUR_BFD. */ | |
189 | ||
190 | static const struct ecoff_debug_swap *debug_swap; | |
191 | ||
192 | /* Pointers to debugging information for CUR_BFD. */ | |
193 | ||
194 | static struct ecoff_debug_info *debug_info; | |
195 | ||
025bb325 | 196 | /* Pointer to current file decriptor record, and its index. */ |
c906108c SS |
197 | |
198 | static FDR *cur_fdr; | |
199 | static int cur_fd; | |
200 | ||
025bb325 | 201 | /* Index of current symbol. */ |
c906108c SS |
202 | |
203 | static int cur_sdx; | |
204 | ||
205 | /* Note how much "debuggable" this image is. We would like | |
025bb325 | 206 | to see at least one FDR with full symbols. */ |
c906108c SS |
207 | |
208 | static int max_gdbinfo; | |
209 | static int max_glevel; | |
210 | ||
025bb325 | 211 | /* When examining .o files, report on undefined symbols. */ |
c906108c SS |
212 | |
213 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
214 | ||
215 | /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
216 | ||
217 | static char stabs_symbol[] = STABS_SYMBOL; | |
218 | ||
c906108c SS |
219 | /* Nonzero if we have seen ecoff debugging info for a file. */ |
220 | ||
221 | static int found_ecoff_debugging_info; | |
222 | ||
025bb325 | 223 | /* Forward declarations. */ |
c906108c | 224 | |
12b9c64f AO |
225 | static int upgrade_type (int, struct type **, int, union aux_ext *, |
226 | int, char *); | |
c906108c | 227 | |
a14ed312 | 228 | static void parse_partial_symbols (struct objfile *); |
c906108c | 229 | |
a14ed312 | 230 | static int has_opaque_xref (FDR *, SYMR *); |
c906108c | 231 | |
12b9c64f AO |
232 | static int cross_ref (int, union aux_ext *, struct type **, enum type_code, |
233 | char **, int, char *); | |
c906108c | 234 | |
a14ed312 | 235 | static struct symbol *new_symbol (char *); |
c906108c | 236 | |
a14ed312 | 237 | static struct type *new_type (char *); |
c906108c | 238 | |
de4f826b | 239 | enum block_type { FUNCTION_BLOCK, NON_FUNCTION_BLOCK }; |
c906108c | 240 | |
de4f826b DC |
241 | static struct block *new_block (enum block_type); |
242 | ||
72b9f47f | 243 | static struct symtab *new_symtab (const char *, int, struct objfile *); |
c906108c | 244 | |
a14ed312 | 245 | static struct linetable *new_linetable (int); |
c906108c | 246 | |
a14ed312 | 247 | static struct blockvector *new_bvect (int); |
c906108c | 248 | |
a14ed312 KB |
249 | static struct type *parse_type (int, union aux_ext *, unsigned int, int *, |
250 | int, char *); | |
c906108c | 251 | |
176620f1 | 252 | static struct symbol *mylookup_symbol (char *, struct block *, domain_enum, |
a14ed312 | 253 | enum address_class); |
c906108c | 254 | |
a14ed312 | 255 | static void sort_blocks (struct symtab *); |
c906108c | 256 | |
a14ed312 | 257 | static struct partial_symtab *new_psymtab (char *, struct objfile *); |
c906108c | 258 | |
72b9f47f | 259 | static void psymtab_to_symtab_1 (struct partial_symtab *, const char *); |
c906108c | 260 | |
a14ed312 | 261 | static void add_block (struct block *, struct symtab *); |
c906108c | 262 | |
c7efd0b9 | 263 | static void add_symbol (struct symbol *, struct symtab *, struct block *); |
c906108c | 264 | |
a14ed312 | 265 | static int add_line (struct linetable *, int, CORE_ADDR, int); |
c906108c | 266 | |
a14ed312 | 267 | static struct linetable *shrink_linetable (struct linetable *); |
c906108c | 268 | |
12b9c64f AO |
269 | static void handle_psymbol_enumerators (struct objfile *, FDR *, int, |
270 | CORE_ADDR); | |
c906108c | 271 | |
a14ed312 | 272 | static char *mdebug_next_symbol_text (struct objfile *); |
c906108c | 273 | \f |
c906108c SS |
274 | /* Exported procedure: Builds a symtab from the PST partial one. |
275 | Restores the environment in effect when PST was created, delegates | |
276 | most of the work to an ancillary procedure, and sorts | |
025bb325 | 277 | and reorders the symtab list at the end. */ |
c906108c SS |
278 | |
279 | static void | |
fba45db2 | 280 | mdebug_psymtab_to_symtab (struct partial_symtab *pst) |
c906108c | 281 | { |
c906108c SS |
282 | if (!pst) |
283 | return; | |
284 | ||
285 | if (info_verbose) | |
286 | { | |
a3f17187 | 287 | printf_filtered (_("Reading in symbols for %s..."), pst->filename); |
c906108c SS |
288 | gdb_flush (gdb_stdout); |
289 | } | |
290 | ||
291 | next_symbol_text_func = mdebug_next_symbol_text; | |
292 | ||
293 | psymtab_to_symtab_1 (pst, pst->filename); | |
294 | ||
295 | /* Match with global symbols. This only needs to be done once, | |
025bb325 | 296 | after all of the symtabs and dependencies have been read in. */ |
c906108c SS |
297 | scan_file_globals (pst->objfile); |
298 | ||
299 | if (info_verbose) | |
a3f17187 | 300 | printf_filtered (_("done.\n")); |
c906108c SS |
301 | } |
302 | \f | |
025bb325 | 303 | /* File-level interface functions. */ |
c906108c | 304 | |
025bb325 | 305 | /* Find a file descriptor given its index RF relative to a file CF. */ |
c906108c SS |
306 | |
307 | static FDR * | |
fba45db2 | 308 | get_rfd (int cf, int rf) |
c906108c SS |
309 | { |
310 | FDR *fdrs; | |
52f0bd74 | 311 | FDR *f; |
c906108c SS |
312 | RFDT rfd; |
313 | ||
314 | fdrs = debug_info->fdr; | |
315 | f = fdrs + cf; | |
025bb325 | 316 | /* Object files do not have the RFD table, all refs are absolute. */ |
c906108c SS |
317 | if (f->rfdBase == 0) |
318 | return fdrs + rf; | |
319 | (*debug_swap->swap_rfd_in) (cur_bfd, | |
c5aa993b JM |
320 | ((char *) debug_info->external_rfd |
321 | + ((f->rfdBase + rf) | |
322 | * debug_swap->external_rfd_size)), | |
323 | &rfd); | |
c906108c SS |
324 | return fdrs + rfd; |
325 | } | |
326 | ||
025bb325 | 327 | /* Return a safer print NAME for a file descriptor. */ |
c906108c SS |
328 | |
329 | static char * | |
fba45db2 | 330 | fdr_name (FDR *f) |
c906108c SS |
331 | { |
332 | if (f->rss == -1) | |
333 | return "<stripped file>"; | |
334 | if (f->rss == 0) | |
335 | return "<NFY>"; | |
336 | return debug_info->ss + f->issBase + f->rss; | |
337 | } | |
338 | ||
339 | ||
340 | /* Read in and parse the symtab of the file OBJFILE. Symbols from | |
341 | different sections are relocated via the SECTION_OFFSETS. */ | |
342 | ||
343 | void | |
fba45db2 KB |
344 | mdebug_build_psymtabs (struct objfile *objfile, |
345 | const struct ecoff_debug_swap *swap, | |
346 | struct ecoff_debug_info *info) | |
c906108c SS |
347 | { |
348 | cur_bfd = objfile->obfd; | |
349 | debug_swap = swap; | |
350 | debug_info = info; | |
351 | ||
d3d55eeb EZ |
352 | stabsread_new_init (); |
353 | buildsym_new_init (); | |
354 | free_header_files (); | |
355 | init_header_files (); | |
356 | ||
c906108c SS |
357 | /* Make sure all the FDR information is swapped in. */ |
358 | if (info->fdr == (FDR *) NULL) | |
359 | { | |
360 | char *fdr_src; | |
361 | char *fdr_end; | |
362 | FDR *fdr_ptr; | |
363 | ||
8b92e4d5 | 364 | info->fdr = (FDR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
365 | (info->symbolic_header.ifdMax |
366 | * sizeof (FDR))); | |
367 | fdr_src = info->external_fdr; | |
368 | fdr_end = (fdr_src | |
369 | + info->symbolic_header.ifdMax * swap->external_fdr_size); | |
370 | fdr_ptr = info->fdr; | |
371 | for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++) | |
372 | (*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr); | |
373 | } | |
374 | ||
d4f3574e | 375 | parse_partial_symbols (objfile); |
c906108c SS |
376 | |
377 | #if 0 | |
378 | /* Check to make sure file was compiled with -g. If not, warn the | |
379 | user of this limitation. */ | |
380 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) | |
381 | { | |
382 | if (max_gdbinfo == 0) | |
3e43a32a MS |
383 | printf_unfiltered (_("\n%s not compiled with -g, " |
384 | "debugging support is limited.\n"), | |
c5aa993b | 385 | objfile->name); |
3e43a32a MS |
386 | printf_unfiltered (_("You should compile with -g2 or " |
387 | "-g3 for best debugging support.\n")); | |
c906108c SS |
388 | gdb_flush (gdb_stdout); |
389 | } | |
390 | #endif | |
391 | } | |
392 | \f | |
393 | /* Local utilities */ | |
394 | ||
025bb325 | 395 | /* Map of FDR indexes to partial symtabs. */ |
c906108c SS |
396 | |
397 | struct pst_map | |
398 | { | |
399 | struct partial_symtab *pst; /* the psymtab proper */ | |
400 | long n_globals; /* exported globals (external symbols) */ | |
401 | long globals_offset; /* cumulative */ | |
402 | }; | |
403 | ||
404 | ||
405 | /* Utility stack, used to nest procedures and blocks properly. | |
406 | It is a doubly linked list, to avoid too many alloc/free. | |
407 | Since we might need it quite a few times it is NOT deallocated | |
025bb325 | 408 | after use. */ |
c906108c SS |
409 | |
410 | static struct parse_stack | |
c5aa993b JM |
411 | { |
412 | struct parse_stack *next, *prev; | |
025bb325 MS |
413 | struct symtab *cur_st; /* Current symtab. */ |
414 | struct block *cur_block; /* Block in it. */ | |
c5aa993b JM |
415 | |
416 | /* What are we parsing. stFile, or stBlock are for files and | |
417 | blocks. stProc or stStaticProc means we have seen the start of a | |
418 | procedure, but not the start of the block within in. When we see | |
419 | the start of that block, we change it to stNil, without pushing a | |
420 | new block, i.e. stNil means both a procedure and a block. */ | |
421 | ||
422 | int blocktype; | |
423 | ||
025bb325 MS |
424 | struct type *cur_type; /* Type we parse fields for. */ |
425 | int cur_field; /* Field number in cur_type. */ | |
426 | CORE_ADDR procadr; /* Start addres of this procedure. */ | |
427 | int numargs; /* Its argument count. */ | |
c5aa993b | 428 | } |
c906108c SS |
429 | |
430 | *top_stack; /* Top stack ptr */ | |
431 | ||
432 | ||
025bb325 | 433 | /* Enter a new lexical context. */ |
c906108c SS |
434 | |
435 | static void | |
fba45db2 | 436 | push_parse_stack (void) |
c906108c SS |
437 | { |
438 | struct parse_stack *new; | |
439 | ||
025bb325 | 440 | /* Reuse frames if possible. */ |
c906108c SS |
441 | if (top_stack && top_stack->prev) |
442 | new = top_stack->prev; | |
443 | else | |
444 | new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack)); | |
025bb325 | 445 | /* Initialize new frame with previous content. */ |
c906108c SS |
446 | if (top_stack) |
447 | { | |
aa1ee363 | 448 | struct parse_stack *prev = new->prev; |
c906108c SS |
449 | |
450 | *new = *top_stack; | |
451 | top_stack->prev = new; | |
452 | new->prev = prev; | |
453 | new->next = top_stack; | |
454 | } | |
455 | top_stack = new; | |
456 | } | |
457 | ||
025bb325 | 458 | /* Exit a lexical context. */ |
c906108c SS |
459 | |
460 | static void | |
fba45db2 | 461 | pop_parse_stack (void) |
c906108c SS |
462 | { |
463 | if (!top_stack) | |
464 | return; | |
465 | if (top_stack->next) | |
466 | top_stack = top_stack->next; | |
467 | } | |
468 | ||
469 | ||
470 | /* Cross-references might be to things we haven't looked at | |
471 | yet, e.g. type references. To avoid too many type | |
472 | duplications we keep a quick fixup table, an array | |
025bb325 | 473 | of lists of references indexed by file descriptor. */ |
c906108c SS |
474 | |
475 | struct mdebug_pending | |
476 | { | |
477 | struct mdebug_pending *next; /* link */ | |
478 | char *s; /* the unswapped symbol */ | |
479 | struct type *t; /* its partial type descriptor */ | |
480 | }; | |
481 | ||
482 | ||
483 | /* The pending information is kept for an entire object file, and used | |
0a6ddd08 AC |
484 | to be in the deprecated_sym_private field. I took it out when I |
485 | split mdebugread from mipsread, because this might not be the only | |
486 | type of symbols read from an object file. Instead, we allocate the | |
c906108c SS |
487 | pending information table when we create the partial symbols, and |
488 | we store a pointer to the single table in each psymtab. */ | |
489 | ||
490 | static struct mdebug_pending **pending_list; | |
491 | ||
025bb325 | 492 | /* Check whether we already saw symbol SH in file FH. */ |
c906108c SS |
493 | |
494 | static struct mdebug_pending * | |
fba45db2 | 495 | is_pending_symbol (FDR *fh, char *sh) |
c906108c SS |
496 | { |
497 | int f_idx = fh - debug_info->fdr; | |
52f0bd74 | 498 | struct mdebug_pending *p; |
c906108c | 499 | |
025bb325 | 500 | /* Linear search is ok, list is typically no more than 10 deep. */ |
c906108c SS |
501 | for (p = pending_list[f_idx]; p; p = p->next) |
502 | if (p->s == sh) | |
503 | break; | |
504 | return p; | |
505 | } | |
506 | ||
025bb325 | 507 | /* Add a new symbol SH of type T. */ |
c906108c SS |
508 | |
509 | static void | |
fba45db2 | 510 | add_pending (FDR *fh, char *sh, struct type *t) |
c906108c SS |
511 | { |
512 | int f_idx = fh - debug_info->fdr; | |
513 | struct mdebug_pending *p = is_pending_symbol (fh, sh); | |
514 | ||
025bb325 | 515 | /* Make sure we do not make duplicates. */ |
c906108c SS |
516 | if (!p) |
517 | { | |
518 | p = ((struct mdebug_pending *) | |
dd707e8e | 519 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
c906108c SS |
520 | sizeof (struct mdebug_pending))); |
521 | p->s = sh; | |
522 | p->t = t; | |
523 | p->next = pending_list[f_idx]; | |
524 | pending_list[f_idx] = p; | |
525 | } | |
526 | } | |
527 | \f | |
528 | ||
025bb325 | 529 | /* Parsing Routines proper. */ |
c906108c | 530 | |
025bb325 | 531 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. |
c906108c SS |
532 | For blocks, procedures and types we open a new lexical context. |
533 | This is basically just a big switch on the symbol's type. Argument | |
534 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
535 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
536 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
537 | aux symbols are big-endian or little-endian. Return count of | |
538 | SYMR's handled (normally one). */ | |
539 | ||
768a979c UW |
540 | static int |
541 | mdebug_reg_to_regnum (struct symbol *sym, struct gdbarch *gdbarch) | |
542 | { | |
543 | return gdbarch_ecoff_reg_to_regnum (gdbarch, SYMBOL_VALUE (sym)); | |
544 | } | |
545 | ||
546 | static const struct symbol_register_ops mdebug_register_funcs = { | |
547 | mdebug_reg_to_regnum | |
548 | }; | |
549 | ||
c906108c | 550 | static int |
fba45db2 KB |
551 | parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend, |
552 | struct section_offsets *section_offsets, struct objfile *objfile) | |
c906108c | 553 | { |
5e2b427d | 554 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c | 555 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
12b9c64f | 556 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
c906108c SS |
557 | char *name; |
558 | struct symbol *s; | |
559 | struct block *b; | |
560 | struct mdebug_pending *pend; | |
561 | struct type *t; | |
562 | struct field *f; | |
563 | int count = 1; | |
564 | enum address_class class; | |
565 | TIR tir; | |
566 | long svalue = sh->value; | |
567 | int bitsize; | |
568 | ||
569 | if (ext_sh == (char *) NULL) | |
570 | name = debug_info->ssext + sh->iss; | |
571 | else | |
572 | name = debug_info->ss + cur_fdr->issBase + sh->iss; | |
573 | ||
574 | switch (sh->sc) | |
575 | { | |
576 | case scText: | |
577 | case scRConst: | |
578 | /* Do not relocate relative values. | |
c5aa993b JM |
579 | The value of a stEnd symbol is the displacement from the |
580 | corresponding start symbol value. | |
581 | The value of a stBlock symbol is the displacement from the | |
582 | procedure address. */ | |
c906108c | 583 | if (sh->st != stEnd && sh->st != stBlock) |
b8fbeb18 | 584 | sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile)); |
c906108c SS |
585 | break; |
586 | case scData: | |
587 | case scSData: | |
588 | case scRData: | |
589 | case scPData: | |
590 | case scXData: | |
b8fbeb18 | 591 | sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile)); |
c906108c SS |
592 | break; |
593 | case scBss: | |
594 | case scSBss: | |
b8fbeb18 | 595 | sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile)); |
c906108c SS |
596 | break; |
597 | } | |
598 | ||
599 | switch (sh->st) | |
600 | { | |
601 | case stNil: | |
602 | break; | |
603 | ||
025bb325 | 604 | case stGlobal: /* External symbol, goes into global block. */ |
c906108c SS |
605 | class = LOC_STATIC; |
606 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
607 | GLOBAL_BLOCK); | |
608 | s = new_symbol (name); | |
609 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
610 | goto data; | |
611 | ||
025bb325 | 612 | case stStatic: /* Static data, goes into current block. */ |
c906108c SS |
613 | class = LOC_STATIC; |
614 | b = top_stack->cur_block; | |
615 | s = new_symbol (name); | |
c5aa993b | 616 | if (SC_IS_COMMON (sh->sc)) |
c906108c SS |
617 | { |
618 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
619 | address is not in the symbol; we need to fix it later in | |
620 | scan_file_globals. */ | |
3567439c | 621 | int bucket = hashname (SYMBOL_LINKAGE_NAME (s)); |
c906108c SS |
622 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; |
623 | global_sym_chain[bucket] = s; | |
624 | } | |
625 | else | |
626 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
627 | goto data; | |
628 | ||
025bb325 | 629 | case stLocal: /* Local variable, goes into current block. */ |
768a979c UW |
630 | b = top_stack->cur_block; |
631 | s = new_symbol (name); | |
632 | SYMBOL_VALUE (s) = svalue; | |
c906108c SS |
633 | if (sh->sc == scRegister) |
634 | { | |
635 | class = LOC_REGISTER; | |
768a979c | 636 | SYMBOL_REGISTER_OPS (s) = &mdebug_register_funcs; |
c906108c SS |
637 | } |
638 | else | |
639 | class = LOC_LOCAL; | |
c906108c | 640 | |
025bb325 | 641 | data: /* Common code for symbols describing data. */ |
176620f1 | 642 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c | 643 | SYMBOL_CLASS (s) = class; |
c7efd0b9 | 644 | add_symbol (s, top_stack->cur_st, b); |
c906108c SS |
645 | |
646 | /* Type could be missing if file is compiled without debugging info. */ | |
c5aa993b | 647 | if (SC_IS_UNDEF (sh->sc) |
c906108c | 648 | || sh->sc == scNil || sh->index == indexNil) |
46bf5051 | 649 | SYMBOL_TYPE (s) = objfile_type (objfile)->nodebug_data_symbol; |
c906108c SS |
650 | else |
651 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
025bb325 | 652 | /* Value of a data symbol is its memory address. */ |
c906108c SS |
653 | break; |
654 | ||
025bb325 MS |
655 | case stParam: /* Arg to procedure, goes into current |
656 | block. */ | |
c906108c SS |
657 | max_gdbinfo++; |
658 | found_ecoff_debugging_info = 1; | |
659 | top_stack->numargs++; | |
660 | ||
661 | /* Special GNU C++ name. */ | |
662 | if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0) | |
025bb325 | 663 | name = "this"; /* FIXME, not alloc'd in obstack. */ |
c906108c SS |
664 | s = new_symbol (name); |
665 | ||
176620f1 | 666 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
2a2d4dc3 | 667 | SYMBOL_IS_ARGUMENT (s) = 1; |
c906108c SS |
668 | switch (sh->sc) |
669 | { | |
670 | case scRegister: | |
671 | /* Pass by value in register. */ | |
2a2d4dc3 | 672 | SYMBOL_CLASS (s) = LOC_REGISTER; |
768a979c | 673 | SYMBOL_REGISTER_OPS (s) = &mdebug_register_funcs; |
c906108c SS |
674 | break; |
675 | case scVar: | |
676 | /* Pass by reference on stack. */ | |
c5aa993b | 677 | SYMBOL_CLASS (s) = LOC_REF_ARG; |
c906108c SS |
678 | break; |
679 | case scVarRegister: | |
680 | /* Pass by reference in register. */ | |
c5aa993b | 681 | SYMBOL_CLASS (s) = LOC_REGPARM_ADDR; |
768a979c | 682 | SYMBOL_REGISTER_OPS (s) = &mdebug_register_funcs; |
c906108c SS |
683 | break; |
684 | default: | |
685 | /* Pass by value on stack. */ | |
c5aa993b | 686 | SYMBOL_CLASS (s) = LOC_ARG; |
c906108c SS |
687 | break; |
688 | } | |
689 | SYMBOL_VALUE (s) = svalue; | |
690 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
c7efd0b9 | 691 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
692 | break; |
693 | ||
025bb325 | 694 | case stLabel: /* label, goes into current block. */ |
c906108c | 695 | s = new_symbol (name); |
025bb325 MS |
696 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; /* So that it can be used */ |
697 | SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused. */ | |
c906108c | 698 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
46bf5051 | 699 | SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_int; |
c7efd0b9 | 700 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
701 | break; |
702 | ||
025bb325 MS |
703 | case stProc: /* Procedure, usually goes into global block. */ |
704 | case stStaticProc: /* Static procedure, goes into current block. */ | |
1fb4c65b JB |
705 | /* For stProc symbol records, we need to check the storage class |
706 | as well, as only (stProc, scText) entries represent "real" | |
707 | procedures - See the Compaq document titled "Object File / | |
708 | Symbol Table Format Specification" for more information. | |
709 | If the storage class is not scText, we discard the whole block | |
710 | of symbol records for this stProc. */ | |
711 | if (sh->st == stProc && sh->sc != scText) | |
712 | { | |
713 | char *ext_tsym = ext_sh; | |
714 | int keep_counting = 1; | |
715 | SYMR tsym; | |
716 | ||
717 | while (keep_counting) | |
718 | { | |
719 | ext_tsym += external_sym_size; | |
720 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
721 | count++; | |
722 | switch (tsym.st) | |
723 | { | |
724 | case stParam: | |
725 | break; | |
726 | case stEnd: | |
727 | keep_counting = 0; | |
728 | break; | |
729 | default: | |
730 | complaint (&symfile_complaints, | |
e2e0b3e5 | 731 | _("unknown symbol type 0x%x"), sh->st); |
1fb4c65b JB |
732 | break; |
733 | } | |
734 | } | |
735 | break; | |
736 | } | |
c906108c | 737 | s = new_symbol (name); |
176620f1 | 738 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c | 739 | SYMBOL_CLASS (s) = LOC_BLOCK; |
025bb325 | 740 | /* Type of the return value. */ |
c5aa993b | 741 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
46bf5051 | 742 | t = objfile_type (objfile)->builtin_int; |
c906108c SS |
743 | else |
744 | { | |
745 | t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name); | |
ee300cd4 AC |
746 | if (strcmp (name, "malloc") == 0 |
747 | && TYPE_CODE (t) == TYPE_CODE_VOID) | |
c906108c SS |
748 | { |
749 | /* I don't know why, but, at least under Alpha GNU/Linux, | |
c5aa993b JM |
750 | when linking against a malloc without debugging |
751 | symbols, its read as a function returning void---this | |
752 | is bad because it means we cannot call functions with | |
753 | string arguments interactively; i.e., "call | |
754 | printf("howdy\n")" would fail with the error message | |
755 | "program has no memory available". To avoid this, we | |
756 | patch up the type and make it void* | |
025bb325 | 757 | instead. (davidm@azstarnet.com). */ |
c906108c SS |
758 | t = make_pointer_type (t, NULL); |
759 | } | |
760 | } | |
761 | b = top_stack->cur_block; | |
762 | if (sh->st == stProc) | |
763 | { | |
764 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
b8d56208 | 765 | |
c906108c SS |
766 | /* The next test should normally be true, but provides a |
767 | hook for nested functions (which we don't want to make | |
28397f59 | 768 | global). */ |
c906108c SS |
769 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
770 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
771 | /* Irix 5 sometimes has duplicate names for the same | |
772 | function. We want to add such names up at the global | |
773 | level, not as a nested function. */ | |
774 | else if (sh->value == top_stack->procadr) | |
775 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
776 | } | |
c7efd0b9 | 777 | add_symbol (s, top_stack->cur_st, b); |
c906108c | 778 | |
025bb325 | 779 | /* Make a type for the procedure itself. */ |
c906108c SS |
780 | SYMBOL_TYPE (s) = lookup_function_type (t); |
781 | ||
1e698235 DJ |
782 | /* All functions in C++ have prototypes. For C we don't have enough |
783 | information in the debug info. */ | |
784 | if (SYMBOL_LANGUAGE (s) == language_cplus) | |
876cecd0 | 785 | TYPE_PROTOTYPED (SYMBOL_TYPE (s)) = 1; |
1e698235 | 786 | |
025bb325 | 787 | /* Create and enter a new lexical context. */ |
de4f826b | 788 | b = new_block (FUNCTION_BLOCK); |
c906108c SS |
789 | SYMBOL_BLOCK_VALUE (s) = b; |
790 | BLOCK_FUNCTION (b) = s; | |
791 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
792 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
793 | add_block (b, top_stack->cur_st); | |
794 | ||
025bb325 | 795 | /* Not if we only have partial info. */ |
c5aa993b | 796 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
c906108c SS |
797 | break; |
798 | ||
799 | push_parse_stack (); | |
800 | top_stack->cur_block = b; | |
801 | top_stack->blocktype = sh->st; | |
802 | top_stack->cur_type = SYMBOL_TYPE (s); | |
803 | top_stack->cur_field = -1; | |
804 | top_stack->procadr = sh->value; | |
805 | top_stack->numargs = 0; | |
806 | break; | |
807 | ||
808 | /* Beginning of code for structure, union, and enum definitions. | |
c5aa993b | 809 | They all share a common set of local variables, defined here. */ |
c906108c SS |
810 | { |
811 | enum type_code type_code; | |
812 | char *ext_tsym; | |
813 | int nfields; | |
814 | long max_value; | |
815 | struct field *f; | |
816 | ||
025bb325 | 817 | case stStruct: /* Start a block defining a struct type. */ |
c906108c SS |
818 | type_code = TYPE_CODE_STRUCT; |
819 | goto structured_common; | |
820 | ||
025bb325 | 821 | case stUnion: /* Start a block defining a union type. */ |
c906108c SS |
822 | type_code = TYPE_CODE_UNION; |
823 | goto structured_common; | |
824 | ||
025bb325 | 825 | case stEnum: /* Start a block defining an enum type. */ |
c906108c SS |
826 | type_code = TYPE_CODE_ENUM; |
827 | goto structured_common; | |
828 | ||
025bb325 | 829 | case stBlock: /* Either a lexical block, or some type. */ |
c5aa993b | 830 | if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc)) |
c906108c SS |
831 | goto case_stBlock_code; /* Lexical block */ |
832 | ||
833 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
834 | ||
835 | /* Common code for handling struct, union, enum, and/or as-yet- | |
836 | unknown-type blocks of info about structured data. `type_code' | |
837 | has been set to the proper TYPE_CODE, if we know it. */ | |
838 | structured_common: | |
839 | found_ecoff_debugging_info = 1; | |
840 | push_parse_stack (); | |
841 | top_stack->blocktype = stBlock; | |
842 | ||
025bb325 | 843 | /* First count the number of fields and the highest value. */ |
c906108c SS |
844 | nfields = 0; |
845 | max_value = 0; | |
846 | for (ext_tsym = ext_sh + external_sym_size; | |
847 | ; | |
848 | ext_tsym += external_sym_size) | |
849 | { | |
850 | SYMR tsym; | |
851 | ||
852 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
853 | ||
854 | switch (tsym.st) | |
855 | { | |
856 | case stEnd: | |
f0394be6 | 857 | /* C++ encodes class types as structures where there the |
025bb325 | 858 | methods are encoded as stProc. The scope of stProc |
f0394be6 JB |
859 | symbols also ends with stEnd, thus creating a risk of |
860 | taking the wrong stEnd symbol record as the end of | |
861 | the current struct, which would cause GDB to undercount | |
862 | the real number of fields in this struct. To make sure | |
863 | we really reached the right stEnd symbol record, we | |
864 | check the associated name, and match it against the | |
865 | struct name. Since method names are mangled while | |
866 | the class name is not, there is no risk of having a | |
867 | method whose name is identical to the class name | |
868 | (in particular constructor method names are different | |
869 | from the class name). There is therefore no risk that | |
7bde8967 KB |
870 | this check stops the count on the StEnd of a method. |
871 | ||
872 | Also, assume that we're really at the end when tsym.iss | |
873 | is 0 (issNull). */ | |
874 | if (tsym.iss == issNull | |
875 | || strcmp (debug_info->ss + cur_fdr->issBase + tsym.iss, | |
876 | name) == 0) | |
f0394be6 JB |
877 | goto end_of_fields; |
878 | break; | |
c906108c SS |
879 | |
880 | case stMember: | |
881 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
882 | { |
883 | /* If the type of the member is Nil (or Void), | |
884 | without qualifiers, assume the tag is an | |
885 | enumeration. | |
886 | Alpha cc -migrate enums are recognized by a zero | |
887 | index and a zero symbol value. | |
888 | DU 4.0 cc enums are recognized by a member type of | |
889 | btEnum without qualifiers and a zero symbol value. */ | |
890 | if (tsym.index == indexNil | |
891 | || (tsym.index == 0 && sh->value == 0)) | |
892 | type_code = TYPE_CODE_ENUM; | |
893 | else | |
894 | { | |
895 | (*debug_swap->swap_tir_in) (bigend, | |
896 | &ax[tsym.index].a_ti, | |
897 | &tir); | |
898 | if ((tir.bt == btNil || tir.bt == btVoid | |
899 | || (tir.bt == btEnum && sh->value == 0)) | |
900 | && tir.tq0 == tqNil) | |
901 | type_code = TYPE_CODE_ENUM; | |
902 | } | |
903 | } | |
c906108c SS |
904 | nfields++; |
905 | if (tsym.value > max_value) | |
906 | max_value = tsym.value; | |
907 | break; | |
908 | ||
909 | case stBlock: | |
910 | case stUnion: | |
911 | case stEnum: | |
912 | case stStruct: | |
913 | { | |
914 | #if 0 | |
915 | /* This is a no-op; is it trying to tell us something | |
916 | we should be checking? */ | |
c5aa993b | 917 | if (tsym.sc == scVariant); /*UNIMPLEMENTED */ |
c906108c SS |
918 | #endif |
919 | if (tsym.index != 0) | |
920 | { | |
921 | /* This is something like a struct within a | |
c5aa993b JM |
922 | struct. Skip over the fields of the inner |
923 | struct. The -1 is because the for loop will | |
924 | increment ext_tsym. */ | |
c906108c SS |
925 | ext_tsym = ((char *) debug_info->external_sym |
926 | + ((cur_fdr->isymBase + tsym.index - 1) | |
927 | * external_sym_size)); | |
928 | } | |
929 | } | |
930 | break; | |
931 | ||
932 | case stTypedef: | |
933 | /* mips cc puts out a typedef for struct x if it is not yet | |
934 | defined when it encounters | |
935 | struct y { struct x *xp; }; | |
025bb325 | 936 | Just ignore it. */ |
c906108c SS |
937 | break; |
938 | ||
939 | case stIndirect: | |
940 | /* Irix5 cc puts out a stIndirect for struct x if it is not | |
941 | yet defined when it encounters | |
942 | struct y { struct x *xp; }; | |
025bb325 | 943 | Just ignore it. */ |
c906108c SS |
944 | break; |
945 | ||
946 | default: | |
23136709 | 947 | complaint (&symfile_complaints, |
3e43a32a MS |
948 | _("declaration block contains " |
949 | "unhandled symbol type %d"), | |
23136709 | 950 | tsym.st); |
c906108c SS |
951 | } |
952 | } | |
82ae4854 | 953 | end_of_fields: |
c906108c SS |
954 | |
955 | /* In an stBlock, there is no way to distinguish structs, | |
956 | unions, and enums at this point. This is a bug in the | |
957 | original design (that has been fixed with the recent | |
958 | addition of the stStruct, stUnion, and stEnum symbol | |
959 | types.) The way you can tell is if/when you see a variable | |
960 | or field of that type. In that case the variable's type | |
961 | (in the AUX table) says if the type is struct, union, or | |
962 | enum, and points back to the stBlock here. So you can | |
963 | patch the tag kind up later - but only if there actually is | |
964 | a variable or field of that type. | |
965 | ||
966 | So until we know for sure, we will guess at this point. | |
967 | The heuristic is: | |
968 | If the first member has index==indexNil or a void type, | |
969 | assume we have an enumeration. | |
970 | Otherwise, if there is more than one member, and all | |
971 | the members have offset 0, assume we have a union. | |
972 | Otherwise, assume we have a struct. | |
973 | ||
974 | The heuristic could guess wrong in the case of of an | |
975 | enumeration with no members or a union with one (or zero) | |
976 | members, or when all except the last field of a struct have | |
977 | width zero. These are uncommon and/or illegal situations, | |
978 | and in any case guessing wrong probably doesn't matter | |
979 | much. | |
980 | ||
981 | But if we later do find out we were wrong, we fixup the tag | |
982 | kind. Members of an enumeration must be handled | |
983 | differently from struct/union fields, and that is harder to | |
984 | patch up, but luckily we shouldn't need to. (If there are | |
985 | any enumeration members, we can tell for sure it's an enum | |
025bb325 | 986 | here.) */ |
c906108c SS |
987 | |
988 | if (type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
989 | { |
990 | if (nfields > 1 && max_value == 0) | |
991 | type_code = TYPE_CODE_UNION; | |
992 | else | |
993 | type_code = TYPE_CODE_STRUCT; | |
994 | } | |
c906108c SS |
995 | |
996 | /* Create a new type or use the pending type. */ | |
997 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
998 | if (pend == (struct mdebug_pending *) NULL) | |
999 | { | |
1000 | t = new_type (NULL); | |
1001 | add_pending (cur_fdr, ext_sh, t); | |
1002 | } | |
1003 | else | |
1004 | t = pend->t; | |
1005 | ||
1006 | /* Do not set the tag name if it is a compiler generated tag name | |
1007 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. | |
1008 | Alpha cc puts out an sh->iss of zero for those. */ | |
1009 | if (sh->iss == 0 || name[0] == '.' || name[0] == '\0') | |
1010 | TYPE_TAG_NAME (t) = NULL; | |
1011 | else | |
dd707e8e | 1012 | TYPE_TAG_NAME (t) = obconcat (&mdebugread_objfile->objfile_obstack, |
3e43a32a | 1013 | name, (char *) NULL); |
c906108c SS |
1014 | |
1015 | TYPE_CODE (t) = type_code; | |
1016 | TYPE_LENGTH (t) = sh->value; | |
1017 | TYPE_NFIELDS (t) = nfields; | |
1018 | TYPE_FIELDS (t) = f = ((struct field *) | |
1019 | TYPE_ALLOC (t, | |
1020 | nfields * sizeof (struct field))); | |
1021 | ||
1022 | if (type_code == TYPE_CODE_ENUM) | |
1023 | { | |
1024 | int unsigned_enum = 1; | |
1025 | ||
025bb325 | 1026 | /* This is a non-empty enum. */ |
c906108c SS |
1027 | |
1028 | /* DEC c89 has the number of enumerators in the sh.value field, | |
1029 | not the type length, so we have to compensate for that | |
1030 | incompatibility quirk. | |
1031 | This might do the wrong thing for an enum with one or two | |
1032 | enumerators and gcc -gcoff -fshort-enums, but these cases | |
1033 | are hopefully rare enough. | |
1034 | Alpha cc -migrate has a sh.value field of zero, we adjust | |
1035 | that too. */ | |
1036 | if (TYPE_LENGTH (t) == TYPE_NFIELDS (t) | |
1037 | || TYPE_LENGTH (t) == 0) | |
5e2b427d | 1038 | TYPE_LENGTH (t) = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; |
c906108c SS |
1039 | for (ext_tsym = ext_sh + external_sym_size; |
1040 | ; | |
1041 | ext_tsym += external_sym_size) | |
1042 | { | |
1043 | SYMR tsym; | |
1044 | struct symbol *enum_sym; | |
1045 | ||
1046 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
1047 | ||
1048 | if (tsym.st != stMember) | |
1049 | break; | |
1050 | ||
d6a843b5 | 1051 | SET_FIELD_BITPOS (*f, tsym.value); |
c906108c SS |
1052 | FIELD_TYPE (*f) = t; |
1053 | FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss; | |
1054 | FIELD_BITSIZE (*f) = 0; | |
1055 | ||
1056 | enum_sym = ((struct symbol *) | |
dd707e8e | 1057 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
c906108c | 1058 | sizeof (struct symbol))); |
12b9c64f | 1059 | memset (enum_sym, 0, sizeof (struct symbol)); |
3567439c DJ |
1060 | SYMBOL_SET_LINKAGE_NAME |
1061 | (enum_sym, obsavestring (f->name, strlen (f->name), | |
dd707e8e | 1062 | &mdebugread_objfile->objfile_obstack)); |
c906108c SS |
1063 | SYMBOL_CLASS (enum_sym) = LOC_CONST; |
1064 | SYMBOL_TYPE (enum_sym) = t; | |
176620f1 | 1065 | SYMBOL_DOMAIN (enum_sym) = VAR_DOMAIN; |
c906108c SS |
1066 | SYMBOL_VALUE (enum_sym) = tsym.value; |
1067 | if (SYMBOL_VALUE (enum_sym) < 0) | |
1068 | unsigned_enum = 0; | |
c7efd0b9 | 1069 | add_symbol (enum_sym, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1070 | |
025bb325 | 1071 | /* Skip the stMembers that we've handled. */ |
c906108c SS |
1072 | count++; |
1073 | f++; | |
1074 | } | |
1075 | if (unsigned_enum) | |
876cecd0 | 1076 | TYPE_UNSIGNED (t) = 1; |
c906108c | 1077 | } |
025bb325 | 1078 | /* Make this the current type. */ |
c906108c SS |
1079 | top_stack->cur_type = t; |
1080 | top_stack->cur_field = 0; | |
1081 | ||
1082 | /* Do not create a symbol for alpha cc unnamed structs. */ | |
1083 | if (sh->iss == 0) | |
1084 | break; | |
1085 | ||
1086 | /* gcc puts out an empty struct for an opaque struct definitions, | |
1087 | do not create a symbol for it either. */ | |
1088 | if (TYPE_NFIELDS (t) == 0) | |
1089 | { | |
876cecd0 | 1090 | TYPE_STUB (t) = 1; |
c906108c SS |
1091 | break; |
1092 | } | |
1093 | ||
1094 | s = new_symbol (name); | |
176620f1 | 1095 | SYMBOL_DOMAIN (s) = STRUCT_DOMAIN; |
c906108c SS |
1096 | SYMBOL_CLASS (s) = LOC_TYPEDEF; |
1097 | SYMBOL_VALUE (s) = 0; | |
1098 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1099 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1100 | break; |
1101 | ||
1102 | /* End of local variables shared by struct, union, enum, and | |
1103 | block (as yet unknown struct/union/enum) processing. */ | |
1104 | } | |
1105 | ||
1106 | case_stBlock_code: | |
1107 | found_ecoff_debugging_info = 1; | |
025bb325 MS |
1108 | /* Beginnning of (code) block. Value of symbol |
1109 | is the displacement from procedure start. */ | |
c906108c SS |
1110 | push_parse_stack (); |
1111 | ||
1112 | /* Do not start a new block if this is the outermost block of a | |
c5aa993b JM |
1113 | procedure. This allows the LOC_BLOCK symbol to point to the |
1114 | block with the local variables, so funcname::var works. */ | |
c906108c SS |
1115 | if (top_stack->blocktype == stProc |
1116 | || top_stack->blocktype == stStaticProc) | |
1117 | { | |
1118 | top_stack->blocktype = stNil; | |
1119 | break; | |
1120 | } | |
1121 | ||
1122 | top_stack->blocktype = stBlock; | |
de4f826b | 1123 | b = new_block (NON_FUNCTION_BLOCK); |
c906108c SS |
1124 | BLOCK_START (b) = sh->value + top_stack->procadr; |
1125 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1126 | top_stack->cur_block = b; | |
1127 | add_block (b, top_stack->cur_st); | |
1128 | break; | |
1129 | ||
1130 | case stEnd: /* end (of anything) */ | |
c5aa993b | 1131 | if (sh->sc == scInfo || SC_IS_COMMON (sh->sc)) |
c906108c SS |
1132 | { |
1133 | /* Finished with type */ | |
1134 | top_stack->cur_type = 0; | |
1135 | } | |
1136 | else if (sh->sc == scText && | |
1137 | (top_stack->blocktype == stProc || | |
1138 | top_stack->blocktype == stStaticProc)) | |
1139 | { | |
1140 | /* Finished with procedure */ | |
1141 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
f92761ec | 1142 | struct mdebug_extra_func_info *e; |
de4f826b | 1143 | struct block *b = top_stack->cur_block; |
c906108c SS |
1144 | struct type *ftype = top_stack->cur_type; |
1145 | int i; | |
1146 | ||
1147 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1148 | ||
025bb325 | 1149 | /* Make up special symbol to contain procedure specific info. */ |
f92761ec | 1150 | s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
176620f1 | 1151 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
c906108c | 1152 | SYMBOL_CLASS (s) = LOC_CONST; |
dd707e8e | 1153 | SYMBOL_TYPE (s) = objfile_type (mdebugread_objfile)->builtin_void; |
f92761ec | 1154 | e = ((struct mdebug_extra_func_info *) |
dd707e8e | 1155 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
f92761ec AC |
1156 | sizeof (struct mdebug_extra_func_info))); |
1157 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); | |
9918cab9 | 1158 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
1159 | e->numargs = top_stack->numargs; |
1160 | e->pdr.framereg = -1; | |
c7efd0b9 | 1161 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1162 | |
c906108c SS |
1163 | /* f77 emits proc-level with address bounds==[0,0], |
1164 | So look for such child blocks, and patch them. */ | |
1165 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
1166 | { | |
1167 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
b8d56208 | 1168 | |
c906108c SS |
1169 | if (BLOCK_SUPERBLOCK (b_bad) == b |
1170 | && BLOCK_START (b_bad) == top_stack->procadr | |
1171 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1172 | { | |
1173 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1174 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1175 | } | |
1176 | } | |
1177 | ||
1178 | if (TYPE_NFIELDS (ftype) <= 0) | |
1179 | { | |
1180 | /* No parameter type information is recorded with the function's | |
025bb325 | 1181 | type. Set that from the type of the parameter symbols. */ |
c906108c SS |
1182 | int nparams = top_stack->numargs; |
1183 | int iparams; | |
1184 | struct symbol *sym; | |
1185 | ||
1186 | if (nparams > 0) | |
1187 | { | |
de4f826b | 1188 | struct dict_iterator iter; |
b8d56208 | 1189 | |
c906108c SS |
1190 | TYPE_NFIELDS (ftype) = nparams; |
1191 | TYPE_FIELDS (ftype) = (struct field *) | |
1192 | TYPE_ALLOC (ftype, nparams * sizeof (struct field)); | |
c5aa993b | 1193 | |
de4f826b DC |
1194 | iparams = 0; |
1195 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
c906108c | 1196 | { |
de4f826b DC |
1197 | if (iparams == nparams) |
1198 | break; | |
1199 | ||
2a2d4dc3 | 1200 | if (SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 1201 | { |
c906108c | 1202 | TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym); |
8176bb6d | 1203 | TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0; |
c906108c | 1204 | iparams++; |
c906108c SS |
1205 | } |
1206 | } | |
1207 | } | |
1208 | } | |
1209 | } | |
1210 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1211 | { | |
025bb325 | 1212 | /* End of (code) block. The value of the symbol is the |
c906108c | 1213 | displacement from the procedure`s start address of the |
025bb325 | 1214 | end of this block. */ |
c906108c | 1215 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
c906108c SS |
1216 | } |
1217 | else if (sh->sc == scText && top_stack->blocktype == stNil) | |
1218 | { | |
1219 | /* End of outermost block. Pop parse stack and ignore. The | |
1220 | following stEnd of stProc will take care of the block. */ | |
1221 | ; | |
1222 | } | |
1223 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1224 | { | |
1225 | /* End of file. Pop parse stack and ignore. Higher | |
1226 | level code deals with this. */ | |
1227 | ; | |
1228 | } | |
1229 | else | |
23136709 | 1230 | complaint (&symfile_complaints, |
e2e0b3e5 | 1231 | _("stEnd with storage class %d not handled"), sh->sc); |
c906108c | 1232 | |
025bb325 | 1233 | pop_parse_stack (); /* Restore previous lexical context. */ |
c906108c SS |
1234 | break; |
1235 | ||
1236 | case stMember: /* member of struct or union */ | |
1237 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
1238 | FIELD_NAME (*f) = name; | |
d6a843b5 | 1239 | SET_FIELD_BITPOS (*f, sh->value); |
c906108c | 1240 | bitsize = 0; |
3e43a32a MS |
1241 | FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, |
1242 | &bitsize, bigend, name); | |
c906108c SS |
1243 | FIELD_BITSIZE (*f) = bitsize; |
1244 | break; | |
1245 | ||
1246 | case stIndirect: /* forward declaration on Irix5 */ | |
1247 | /* Forward declarations from Irix5 cc are handled by cross_ref, | |
c5aa993b | 1248 | skip them. */ |
c906108c SS |
1249 | break; |
1250 | ||
1251 | case stTypedef: /* type definition */ | |
1252 | found_ecoff_debugging_info = 1; | |
1253 | ||
1254 | /* Typedefs for forward declarations and opaque structs from alpha cc | |
c5aa993b | 1255 | are handled by cross_ref, skip them. */ |
c906108c SS |
1256 | if (sh->iss == 0) |
1257 | break; | |
1258 | ||
1259 | /* Parse the type or use the pending type. */ | |
1260 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1261 | if (pend == (struct mdebug_pending *) NULL) | |
1262 | { | |
c5aa993b | 1263 | t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name); |
c906108c SS |
1264 | add_pending (cur_fdr, ext_sh, t); |
1265 | } | |
1266 | else | |
1267 | t = pend->t; | |
1268 | ||
025bb325 MS |
1269 | /* Mips cc puts out a typedef with the name of the struct for forward |
1270 | declarations. These should not go into the symbol table and | |
c5aa993b JM |
1271 | TYPE_NAME should not be set for them. |
1272 | They can't be distinguished from an intentional typedef to | |
1273 | the same name however: | |
1274 | x.h: | |
1275 | struct x { int ix; int jx; }; | |
1276 | struct xx; | |
1277 | x.c: | |
1278 | typedef struct x x; | |
1279 | struct xx {int ixx; int jxx; }; | |
1280 | generates a cross referencing stTypedef for x and xx. | |
1281 | The user visible effect of this is that the type of a pointer | |
1282 | to struct foo sometimes is given as `foo *' instead of `struct foo *'. | |
1283 | The problem is fixed with alpha cc and Irix5 cc. */ | |
c906108c SS |
1284 | |
1285 | /* However if the typedef cross references to an opaque aggregate, it | |
c5aa993b | 1286 | is safe to omit it from the symbol table. */ |
c906108c SS |
1287 | |
1288 | if (has_opaque_xref (cur_fdr, sh)) | |
1289 | break; | |
1290 | s = new_symbol (name); | |
176620f1 | 1291 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c SS |
1292 | SYMBOL_CLASS (s) = LOC_TYPEDEF; |
1293 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; | |
1294 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1295 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1296 | |
1297 | /* Incomplete definitions of structs should not get a name. */ | |
1298 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1299 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
c5aa993b | 1300 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT |
c906108c SS |
1301 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) |
1302 | { | |
1303 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1304 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1305 | { | |
1306 | /* If we are giving a name to a type such as "pointer to | |
c5aa993b JM |
1307 | foo" or "function returning foo", we better not set |
1308 | the TYPE_NAME. If the program contains "typedef char | |
1309 | *caddr_t;", we don't want all variables of type char | |
1310 | * to print as caddr_t. This is not just a | |
1311 | consequence of GDB's type management; CC and GCC (at | |
1312 | least through version 2.4) both output variables of | |
1313 | either type char * or caddr_t with the type | |
1314 | refering to the stTypedef symbol for caddr_t. If a future | |
1315 | compiler cleans this up it GDB is not ready for it | |
1316 | yet, but if it becomes ready we somehow need to | |
1317 | disable this check (without breaking the PCC/GCC2.4 | |
1318 | case). | |
1319 | ||
1320 | Sigh. | |
1321 | ||
1322 | Fortunately, this check seems not to be necessary | |
1323 | for anything except pointers or functions. */ | |
c906108c SS |
1324 | } |
1325 | else | |
3567439c | 1326 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_LINKAGE_NAME (s); |
c906108c SS |
1327 | } |
1328 | break; | |
1329 | ||
1330 | case stFile: /* file name */ | |
1331 | push_parse_stack (); | |
1332 | top_stack->blocktype = sh->st; | |
1333 | break; | |
1334 | ||
1335 | /* I`ve never seen these for C */ | |
1336 | case stRegReloc: | |
1337 | break; /* register relocation */ | |
1338 | case stForward: | |
1339 | break; /* forwarding address */ | |
1340 | case stConstant: | |
1341 | break; /* constant */ | |
1342 | default: | |
e2e0b3e5 | 1343 | complaint (&symfile_complaints, _("unknown symbol type 0x%x"), sh->st); |
c906108c SS |
1344 | break; |
1345 | } | |
1346 | ||
1347 | return count; | |
1348 | } | |
1349 | ||
0a9d309a UW |
1350 | /* Basic types. */ |
1351 | ||
1352 | static const struct objfile_data *basic_type_data; | |
1353 | ||
1354 | static struct type * | |
1355 | basic_type (int bt, struct objfile *objfile) | |
1356 | { | |
1357 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1358 | struct type **map_bt = objfile_data (objfile, basic_type_data); | |
1359 | struct type *tp; | |
1360 | ||
1361 | if (bt >= btMax) | |
1362 | return NULL; | |
1363 | ||
1364 | if (!map_bt) | |
1365 | { | |
1366 | map_bt = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
1367 | btMax, struct type *); | |
1368 | set_objfile_data (objfile, basic_type_data, map_bt); | |
1369 | } | |
1370 | ||
1371 | if (map_bt[bt]) | |
1372 | return map_bt[bt]; | |
1373 | ||
1374 | switch (bt) | |
1375 | { | |
1376 | case btNil: | |
46bf5051 | 1377 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1378 | break; |
1379 | ||
1380 | case btAdr: | |
1381 | tp = init_type (TYPE_CODE_PTR, 4, TYPE_FLAG_UNSIGNED, | |
1382 | "adr_32", objfile); | |
46bf5051 | 1383 | TYPE_TARGET_TYPE (tp) = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1384 | break; |
1385 | ||
1386 | case btChar: | |
1387 | tp = init_type (TYPE_CODE_INT, 1, 0, | |
1388 | "char", objfile); | |
1389 | break; | |
1390 | ||
1391 | case btUChar: | |
1392 | tp = init_type (TYPE_CODE_INT, 1, TYPE_FLAG_UNSIGNED, | |
1393 | "unsigned char", objfile); | |
1394 | break; | |
1395 | ||
1396 | case btShort: | |
1397 | tp = init_type (TYPE_CODE_INT, 2, 0, | |
1398 | "short", objfile); | |
1399 | break; | |
1400 | ||
1401 | case btUShort: | |
1402 | tp = init_type (TYPE_CODE_INT, 2, TYPE_FLAG_UNSIGNED, | |
1403 | "unsigned short", objfile); | |
1404 | break; | |
1405 | ||
1406 | case btInt: | |
1407 | tp = init_type (TYPE_CODE_INT, 4, 0, | |
1408 | "int", objfile); | |
1409 | break; | |
1410 | ||
1411 | case btUInt: | |
1412 | tp = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1413 | "unsigned int", objfile); | |
1414 | break; | |
1415 | ||
1416 | case btLong: | |
1417 | tp = init_type (TYPE_CODE_INT, 4, 0, | |
1418 | "long", objfile); | |
1419 | break; | |
1420 | ||
1421 | case btULong: | |
1422 | tp = init_type (TYPE_CODE_INT, 4, TYPE_FLAG_UNSIGNED, | |
1423 | "unsigned long", objfile); | |
1424 | break; | |
1425 | ||
1426 | case btFloat: | |
1427 | tp = init_type (TYPE_CODE_FLT, | |
1428 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1429 | "float", objfile); | |
1430 | break; | |
1431 | ||
1432 | case btDouble: | |
1433 | tp = init_type (TYPE_CODE_FLT, | |
1434 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1435 | "double", objfile); | |
1436 | break; | |
1437 | ||
1438 | case btComplex: | |
1439 | tp = init_type (TYPE_CODE_COMPLEX, | |
1440 | 2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1441 | "complex", objfile); | |
1442 | TYPE_TARGET_TYPE (tp) = basic_type (btFloat, objfile); | |
1443 | break; | |
1444 | ||
1445 | case btDComplex: | |
1446 | tp = init_type (TYPE_CODE_COMPLEX, | |
1447 | 2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1448 | "double complex", objfile); | |
1449 | TYPE_TARGET_TYPE (tp) = basic_type (btDouble, objfile); | |
1450 | break; | |
1451 | ||
1452 | case btFixedDec: | |
1453 | /* We use TYPE_CODE_INT to print these as integers. Does this do any | |
1454 | good? Would we be better off with TYPE_CODE_ERROR? Should | |
1455 | TYPE_CODE_ERROR print things in hex if it knows the size? */ | |
1456 | tp = init_type (TYPE_CODE_INT, | |
1457 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1458 | "fixed decimal", objfile); | |
1459 | break; | |
1460 | ||
1461 | case btFloatDec: | |
1462 | tp = init_type (TYPE_CODE_ERROR, | |
1463 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, 0, | |
1464 | "floating decimal", objfile); | |
1465 | break; | |
1466 | ||
1467 | case btString: | |
1468 | /* Is a "string" the way btString means it the same as TYPE_CODE_STRING? | |
1469 | FIXME. */ | |
1470 | tp = init_type (TYPE_CODE_STRING, 1, 0, | |
1471 | "string", objfile); | |
1472 | break; | |
1473 | ||
1474 | case btVoid: | |
46bf5051 | 1475 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1476 | break; |
1477 | ||
1478 | case btLong64: | |
1479 | tp = init_type (TYPE_CODE_INT, 8, 0, | |
1480 | "long", objfile); | |
1481 | break; | |
1482 | ||
1483 | case btULong64: | |
1484 | tp = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
1485 | "unsigned long", objfile); | |
1486 | break; | |
1487 | ||
1488 | case btLongLong64: | |
1489 | tp = init_type (TYPE_CODE_INT, 8, 0, | |
1490 | "long long", objfile); | |
1491 | break; | |
1492 | ||
1493 | case btULongLong64: | |
1494 | tp = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
1495 | "unsigned long long", objfile); | |
1496 | break; | |
1497 | ||
1498 | case btAdr64: | |
1499 | tp = init_type (TYPE_CODE_PTR, 8, TYPE_FLAG_UNSIGNED, | |
1500 | "adr_64", objfile); | |
46bf5051 | 1501 | TYPE_TARGET_TYPE (tp) = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1502 | break; |
1503 | ||
1504 | case btInt64: | |
1505 | tp = init_type (TYPE_CODE_INT, 8, 0, | |
1506 | "int", objfile); | |
1507 | break; | |
1508 | ||
1509 | case btUInt64: | |
1510 | tp = init_type (TYPE_CODE_INT, 8, TYPE_FLAG_UNSIGNED, | |
1511 | "unsigned int", objfile); | |
1512 | break; | |
1513 | ||
1514 | default: | |
1515 | tp = NULL; | |
1516 | break; | |
1517 | } | |
1518 | ||
1519 | map_bt[bt] = tp; | |
1520 | return tp; | |
1521 | } | |
1522 | ||
c906108c | 1523 | /* Parse the type information provided in the raw AX entries for |
025bb325 | 1524 | the symbol SH. Return the bitfield size in BS, in case. |
c906108c SS |
1525 | We must byte-swap the AX entries before we use them; BIGEND says whether |
1526 | they are big-endian or little-endian (from fh->fBigendian). */ | |
1527 | ||
1528 | static struct type * | |
fba45db2 KB |
1529 | parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs, |
1530 | int bigend, char *sym_name) | |
c906108c | 1531 | { |
c906108c SS |
1532 | TIR t[1]; |
1533 | struct type *tp = 0; | |
1534 | enum type_code type_code = TYPE_CODE_UNDEF; | |
1535 | ||
025bb325 | 1536 | /* Handle undefined types, they have indexNil. */ |
c906108c | 1537 | if (aux_index == indexNil) |
dd707e8e | 1538 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1539 | |
1540 | /* Handle corrupt aux indices. */ | |
1541 | if (aux_index >= (debug_info->fdr + fd)->caux) | |
1542 | { | |
23136709 | 1543 | index_complaint (sym_name); |
dd707e8e | 1544 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1545 | } |
1546 | ax += aux_index; | |
1547 | ||
1548 | /* Use aux as a type information record, map its basic type. */ | |
1549 | (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t); | |
dd707e8e | 1550 | tp = basic_type (t->bt, mdebugread_objfile); |
0a9d309a | 1551 | if (tp == NULL) |
c906108c | 1552 | { |
025bb325 | 1553 | /* Cannot use builtin types -- build our own. */ |
c906108c SS |
1554 | switch (t->bt) |
1555 | { | |
1556 | case btStruct: | |
1557 | type_code = TYPE_CODE_STRUCT; | |
1558 | break; | |
1559 | case btUnion: | |
1560 | type_code = TYPE_CODE_UNION; | |
1561 | break; | |
1562 | case btEnum: | |
1563 | type_code = TYPE_CODE_ENUM; | |
1564 | break; | |
1565 | case btRange: | |
1566 | type_code = TYPE_CODE_RANGE; | |
1567 | break; | |
1568 | case btSet: | |
1569 | type_code = TYPE_CODE_SET; | |
1570 | break; | |
1571 | case btIndirect: | |
025bb325 | 1572 | /* alpha cc -migrate uses this for typedefs. The true type will |
c906108c SS |
1573 | be obtained by crossreferencing below. */ |
1574 | type_code = TYPE_CODE_ERROR; | |
1575 | break; | |
1576 | case btTypedef: | |
025bb325 | 1577 | /* alpha cc uses this for typedefs. The true type will be |
c906108c SS |
1578 | obtained by crossreferencing below. */ |
1579 | type_code = TYPE_CODE_ERROR; | |
1580 | break; | |
1581 | default: | |
23136709 | 1582 | basic_type_complaint (t->bt, sym_name); |
dd707e8e | 1583 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1584 | } |
1585 | } | |
1586 | ||
025bb325 | 1587 | /* Move on to next aux. */ |
c906108c SS |
1588 | ax++; |
1589 | ||
1590 | if (t->fBitfield) | |
1591 | { | |
1592 | int width = AUX_GET_WIDTH (bigend, ax); | |
b8d56208 | 1593 | |
25caa7a8 | 1594 | /* Inhibit core dumps if TIR is corrupted. */ |
c5aa993b | 1595 | if (bs == (int *) NULL) |
c906108c SS |
1596 | { |
1597 | /* Alpha cc -migrate encodes char and unsigned char types | |
1598 | as short and unsigned short types with a field width of 8. | |
1599 | Enum types also have a field width which we ignore for now. */ | |
1600 | if (t->bt == btShort && width == 8) | |
dd707e8e | 1601 | tp = basic_type (btChar, mdebugread_objfile); |
c906108c | 1602 | else if (t->bt == btUShort && width == 8) |
dd707e8e | 1603 | tp = basic_type (btUChar, mdebugread_objfile); |
c906108c SS |
1604 | else if (t->bt == btEnum) |
1605 | ; | |
1606 | else | |
3e43a32a MS |
1607 | complaint (&symfile_complaints, |
1608 | _("can't handle TIR fBitfield for %s"), | |
23136709 | 1609 | sym_name); |
c906108c SS |
1610 | } |
1611 | else | |
c5aa993b | 1612 | *bs = width; |
c906108c SS |
1613 | ax++; |
1614 | } | |
1615 | ||
1616 | /* A btIndirect entry cross references to an aux entry containing | |
1617 | the type. */ | |
1618 | if (t->bt == btIndirect) | |
1619 | { | |
1620 | RNDXR rn[1]; | |
1621 | int rf; | |
1622 | FDR *xref_fh; | |
1623 | int xref_fd; | |
1624 | ||
1625 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn); | |
1626 | ax++; | |
1627 | if (rn->rfd == 0xfff) | |
1628 | { | |
1629 | rf = AUX_GET_ISYM (bigend, ax); | |
1630 | ax++; | |
1631 | } | |
1632 | else | |
1633 | rf = rn->rfd; | |
1634 | ||
1635 | if (rf == -1) | |
1636 | { | |
23136709 | 1637 | complaint (&symfile_complaints, |
e2e0b3e5 | 1638 | _("unable to cross ref btIndirect for %s"), sym_name); |
dd707e8e | 1639 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1640 | } |
1641 | xref_fh = get_rfd (fd, rf); | |
1642 | xref_fd = xref_fh - debug_info->fdr; | |
1643 | tp = parse_type (xref_fd, debug_info->external_aux + xref_fh->iauxBase, | |
c5aa993b | 1644 | rn->index, (int *) NULL, xref_fh->fBigendian, sym_name); |
c906108c SS |
1645 | } |
1646 | ||
1647 | /* All these types really point to some (common) MIPS type | |
1648 | definition, and only the type-qualifiers fully identify | |
025bb325 | 1649 | them. We'll make the same effort at sharing. */ |
c906108c SS |
1650 | if (t->bt == btStruct || |
1651 | t->bt == btUnion || | |
1652 | t->bt == btEnum || | |
1653 | ||
c5aa993b JM |
1654 | /* btSet (I think) implies that the name is a tag name, not a typedef |
1655 | name. This apparently is a MIPS extension for C sets. */ | |
c906108c SS |
1656 | t->bt == btSet) |
1657 | { | |
1658 | char *name; | |
1659 | ||
1660 | /* Try to cross reference this type, build new type on failure. */ | |
1661 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1662 | if (tp == (struct type *) NULL) | |
dd707e8e | 1663 | tp = init_type (type_code, 0, 0, (char *) NULL, mdebugread_objfile); |
c906108c SS |
1664 | |
1665 | /* DEC c89 produces cross references to qualified aggregate types, | |
c5aa993b | 1666 | dereference them. */ |
c906108c SS |
1667 | while (TYPE_CODE (tp) == TYPE_CODE_PTR |
1668 | || TYPE_CODE (tp) == TYPE_CODE_ARRAY) | |
0004e5a2 | 1669 | tp = TYPE_TARGET_TYPE (tp); |
c906108c SS |
1670 | |
1671 | /* Make sure that TYPE_CODE(tp) has an expected type code. | |
c5aa993b JM |
1672 | Any type may be returned from cross_ref if file indirect entries |
1673 | are corrupted. */ | |
c906108c SS |
1674 | if (TYPE_CODE (tp) != TYPE_CODE_STRUCT |
1675 | && TYPE_CODE (tp) != TYPE_CODE_UNION | |
1676 | && TYPE_CODE (tp) != TYPE_CODE_ENUM) | |
1677 | { | |
23136709 | 1678 | unexpected_type_code_complaint (sym_name); |
c906108c SS |
1679 | } |
1680 | else | |
1681 | { | |
c906108c SS |
1682 | /* Usually, TYPE_CODE(tp) is already type_code. The main |
1683 | exception is if we guessed wrong re struct/union/enum. | |
1684 | But for struct vs. union a wrong guess is harmless, so | |
1685 | don't complain(). */ | |
1686 | if ((TYPE_CODE (tp) == TYPE_CODE_ENUM | |
1687 | && type_code != TYPE_CODE_ENUM) | |
1688 | || (TYPE_CODE (tp) != TYPE_CODE_ENUM | |
1689 | && type_code == TYPE_CODE_ENUM)) | |
1690 | { | |
23136709 | 1691 | bad_tag_guess_complaint (sym_name); |
c906108c SS |
1692 | } |
1693 | ||
1694 | if (TYPE_CODE (tp) != type_code) | |
1695 | { | |
1696 | TYPE_CODE (tp) = type_code; | |
1697 | } | |
1698 | ||
1699 | /* Do not set the tag name if it is a compiler generated tag name | |
c5aa993b | 1700 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */ |
c906108c SS |
1701 | if (name[0] == '.' || name[0] == '\0') |
1702 | TYPE_TAG_NAME (tp) = NULL; | |
1703 | else if (TYPE_TAG_NAME (tp) == NULL | |
6314a349 | 1704 | || strcmp (TYPE_TAG_NAME (tp), name) != 0) |
3e43a32a MS |
1705 | TYPE_TAG_NAME (tp) |
1706 | = obsavestring (name, strlen (name), | |
dd707e8e | 1707 | &mdebugread_objfile->objfile_obstack); |
c906108c SS |
1708 | } |
1709 | } | |
1710 | ||
1711 | /* All these types really point to some (common) MIPS type | |
1712 | definition, and only the type-qualifiers fully identify | |
1713 | them. We'll make the same effort at sharing. | |
1714 | FIXME: We are not doing any guessing on range types. */ | |
1715 | if (t->bt == btRange) | |
1716 | { | |
1717 | char *name; | |
1718 | ||
1719 | /* Try to cross reference this type, build new type on failure. */ | |
1720 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1721 | if (tp == (struct type *) NULL) | |
dd707e8e | 1722 | tp = init_type (type_code, 0, 0, (char *) NULL, mdebugread_objfile); |
c906108c SS |
1723 | |
1724 | /* Make sure that TYPE_CODE(tp) has an expected type code. | |
c5aa993b JM |
1725 | Any type may be returned from cross_ref if file indirect entries |
1726 | are corrupted. */ | |
c906108c SS |
1727 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) |
1728 | { | |
23136709 | 1729 | unexpected_type_code_complaint (sym_name); |
c906108c SS |
1730 | } |
1731 | else | |
1732 | { | |
1733 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
025bb325 | 1734 | exception is if we guessed wrong re struct/union/enum. */ |
c906108c SS |
1735 | if (TYPE_CODE (tp) != type_code) |
1736 | { | |
23136709 | 1737 | bad_tag_guess_complaint (sym_name); |
c906108c SS |
1738 | TYPE_CODE (tp) = type_code; |
1739 | } | |
ee300cd4 AC |
1740 | if (TYPE_NAME (tp) == NULL |
1741 | || strcmp (TYPE_NAME (tp), name) != 0) | |
c906108c | 1742 | TYPE_NAME (tp) = obsavestring (name, strlen (name), |
dd707e8e | 1743 | &mdebugread_objfile->objfile_obstack); |
c906108c SS |
1744 | } |
1745 | } | |
1746 | if (t->bt == btTypedef) | |
1747 | { | |
1748 | char *name; | |
1749 | ||
1750 | /* Try to cross reference this type, it should succeed. */ | |
1751 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1752 | if (tp == (struct type *) NULL) | |
1753 | { | |
23136709 | 1754 | complaint (&symfile_complaints, |
e2e0b3e5 | 1755 | _("unable to cross ref btTypedef for %s"), sym_name); |
dd707e8e | 1756 | tp = basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1757 | } |
1758 | } | |
1759 | ||
025bb325 | 1760 | /* Deal with range types. */ |
c906108c SS |
1761 | if (t->bt == btRange) |
1762 | { | |
43bbcdc2 PH |
1763 | TYPE_NFIELDS (tp) = 0; |
1764 | TYPE_RANGE_DATA (tp) = ((struct range_bounds *) | |
1765 | TYPE_ZALLOC (tp, sizeof (struct range_bounds))); | |
262452ec | 1766 | TYPE_LOW_BOUND (tp) = AUX_GET_DNLOW (bigend, ax); |
c906108c | 1767 | ax++; |
262452ec | 1768 | TYPE_HIGH_BOUND (tp) = AUX_GET_DNHIGH (bigend, ax); |
c906108c SS |
1769 | ax++; |
1770 | } | |
1771 | ||
025bb325 MS |
1772 | /* Parse all the type qualifiers now. If there are more |
1773 | than 6 the game will continue in the next aux. */ | |
c906108c SS |
1774 | |
1775 | while (1) | |
1776 | { | |
1777 | #define PARSE_TQ(tq) \ | |
1778 | if (t->tq != tqNil) \ | |
1779 | ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \ | |
1780 | else \ | |
1781 | break; | |
1782 | ||
1783 | PARSE_TQ (tq0); | |
1784 | PARSE_TQ (tq1); | |
1785 | PARSE_TQ (tq2); | |
1786 | PARSE_TQ (tq3); | |
1787 | PARSE_TQ (tq4); | |
1788 | PARSE_TQ (tq5); | |
1789 | #undef PARSE_TQ | |
1790 | ||
1791 | /* mips cc 2.x and gcc never put out continued aux entries. */ | |
1792 | if (!t->continued) | |
1793 | break; | |
1794 | ||
1795 | (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t); | |
1796 | ax++; | |
1797 | } | |
1798 | ||
1799 | /* Complain for illegal continuations due to corrupt aux entries. */ | |
1800 | if (t->continued) | |
3e43a32a MS |
1801 | complaint (&symfile_complaints, |
1802 | _("illegal TIR continued for %s"), sym_name); | |
c5aa993b | 1803 | |
c906108c SS |
1804 | return tp; |
1805 | } | |
1806 | ||
1807 | /* Make up a complex type from a basic one. Type is passed by | |
025bb325 | 1808 | reference in TPP and side-effected as necessary. The type |
c906108c SS |
1809 | qualifier TQ says how to handle the aux symbols at AX for |
1810 | the symbol SX we are currently analyzing. BIGEND says whether | |
1811 | aux symbols are big-endian or little-endian. | |
025bb325 | 1812 | Returns the number of aux symbols we parsed. */ |
c906108c SS |
1813 | |
1814 | static int | |
fba45db2 KB |
1815 | upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend, |
1816 | char *sym_name) | |
c906108c SS |
1817 | { |
1818 | int off; | |
1819 | struct type *t; | |
1820 | ||
025bb325 | 1821 | /* Used in array processing. */ |
c906108c SS |
1822 | int rf, id; |
1823 | FDR *fh; | |
1824 | struct type *range; | |
1825 | struct type *indx; | |
1826 | int lower, upper; | |
1827 | RNDXR rndx; | |
1828 | ||
1829 | switch (tq) | |
1830 | { | |
1831 | case tqPtr: | |
1832 | t = lookup_pointer_type (*tpp); | |
1833 | *tpp = t; | |
1834 | return 0; | |
1835 | ||
1836 | case tqProc: | |
1837 | t = lookup_function_type (*tpp); | |
1838 | *tpp = t; | |
1839 | return 0; | |
1840 | ||
1841 | case tqArray: | |
1842 | off = 0; | |
1843 | ||
025bb325 | 1844 | /* Determine and record the domain type (type of index). */ |
c906108c SS |
1845 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx); |
1846 | id = rndx.index; | |
1847 | rf = rndx.rfd; | |
1848 | if (rf == 0xfff) | |
1849 | { | |
1850 | ax++; | |
1851 | rf = AUX_GET_ISYM (bigend, ax); | |
1852 | off++; | |
1853 | } | |
1854 | fh = get_rfd (fd, rf); | |
1855 | ||
1856 | indx = parse_type (fh - debug_info->fdr, | |
1857 | debug_info->external_aux + fh->iauxBase, | |
1858 | id, (int *) NULL, bigend, sym_name); | |
1859 | ||
1860 | /* The bounds type should be an integer type, but might be anything | |
c5aa993b | 1861 | else due to corrupt aux entries. */ |
c906108c SS |
1862 | if (TYPE_CODE (indx) != TYPE_CODE_INT) |
1863 | { | |
23136709 | 1864 | complaint (&symfile_complaints, |
3e43a32a MS |
1865 | _("illegal array index type for %s, assuming int"), |
1866 | sym_name); | |
dd707e8e | 1867 | indx = objfile_type (mdebugread_objfile)->builtin_int; |
c906108c SS |
1868 | } |
1869 | ||
1870 | /* Get the bounds, and create the array type. */ | |
1871 | ax++; | |
1872 | lower = AUX_GET_DNLOW (bigend, ax); | |
1873 | ax++; | |
1874 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1875 | ax++; | |
1876 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1877 | ||
1878 | range = create_range_type ((struct type *) NULL, indx, | |
1879 | lower, upper); | |
1880 | ||
1881 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1882 | ||
1883 | /* We used to fill in the supplied array element bitsize | |
c5aa993b JM |
1884 | here if the TYPE_LENGTH of the target type was zero. |
1885 | This happens for a `pointer to an array of anonymous structs', | |
1886 | but in this case the array element bitsize is also zero, | |
1887 | so nothing is gained. | |
1888 | And we used to check the TYPE_LENGTH of the target type against | |
1889 | the supplied array element bitsize. | |
1890 | gcc causes a mismatch for `pointer to array of object', | |
1891 | since the sdb directives it uses do not have a way of | |
1892 | specifying the bitsize, but it does no harm (the | |
1893 | TYPE_LENGTH should be correct) and we should be able to | |
1894 | ignore the erroneous bitsize from the auxiliary entry safely. | |
1895 | dbx seems to ignore it too. */ | |
c906108c | 1896 | |
d6a843b5 | 1897 | /* TYPE_TARGET_STUB now takes care of the zero TYPE_LENGTH problem. */ |
c906108c | 1898 | if (TYPE_LENGTH (*tpp) == 0) |
d6a843b5 | 1899 | TYPE_TARGET_STUB (t) = 1; |
c906108c SS |
1900 | |
1901 | *tpp = t; | |
1902 | return 4 + off; | |
1903 | ||
1904 | case tqVol: | |
1905 | /* Volatile -- currently ignored */ | |
1906 | return 0; | |
1907 | ||
1908 | case tqConst: | |
1909 | /* Const -- currently ignored */ | |
1910 | return 0; | |
1911 | ||
1912 | default: | |
e2e0b3e5 | 1913 | complaint (&symfile_complaints, _("unknown type qualifier 0x%x"), tq); |
c906108c SS |
1914 | return 0; |
1915 | } | |
1916 | } | |
1917 | ||
1918 | ||
1919 | /* Parse a procedure descriptor record PR. Note that the procedure is | |
1920 | parsed _after_ the local symbols, now we just insert the extra | |
f92761ec | 1921 | information we need into a MDEBUG_EFI_SYMBOL_NAME symbol that has |
c906108c SS |
1922 | already been placed in the procedure's main block. Note also that |
1923 | images that have been partially stripped (ld -x) have been deprived | |
1924 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1925 | the offset of the first procedure for this FDR; we adjust the | |
1926 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab | |
f92761ec | 1927 | to look for the function which contains the MDEBUG_EFI_SYMBOL_NAME symbol |
c906108c SS |
1928 | in question, or NULL to use top_stack->cur_block. */ |
1929 | ||
a14ed312 | 1930 | static void parse_procedure (PDR *, struct symtab *, struct partial_symtab *); |
c906108c SS |
1931 | |
1932 | static void | |
fba45db2 KB |
1933 | parse_procedure (PDR *pr, struct symtab *search_symtab, |
1934 | struct partial_symtab *pst) | |
c906108c SS |
1935 | { |
1936 | struct symbol *s, *i; | |
1937 | struct block *b; | |
c906108c SS |
1938 | char *sh_name; |
1939 | ||
025bb325 | 1940 | /* Simple rule to find files linked "-x". */ |
c906108c SS |
1941 | if (cur_fdr->rss == -1) |
1942 | { | |
1943 | if (pr->isym == -1) | |
1944 | { | |
025bb325 | 1945 | /* Static procedure at address pr->adr. Sigh. */ |
c906108c | 1946 | /* FIXME-32x64. assuming pr->adr fits in long. */ |
23136709 | 1947 | complaint (&symfile_complaints, |
e2e0b3e5 | 1948 | _("can't handle PDR for static proc at 0x%lx"), |
23136709 | 1949 | (unsigned long) pr->adr); |
c906108c SS |
1950 | return; |
1951 | } | |
1952 | else | |
1953 | { | |
1954 | /* external */ | |
1955 | EXTR she; | |
c5aa993b | 1956 | |
c906108c SS |
1957 | (*debug_swap->swap_ext_in) (cur_bfd, |
1958 | ((char *) debug_info->external_ext | |
1959 | + (pr->isym | |
1960 | * debug_swap->external_ext_size)), | |
1961 | &she); | |
1962 | sh_name = debug_info->ssext + she.asym.iss; | |
1963 | } | |
1964 | } | |
1965 | else | |
1966 | { | |
1967 | /* Full symbols */ | |
1968 | SYMR sh; | |
1969 | ||
1970 | (*debug_swap->swap_sym_in) (cur_bfd, | |
1971 | ((char *) debug_info->external_sym | |
1972 | + ((cur_fdr->isymBase + pr->isym) | |
1973 | * debug_swap->external_sym_size)), | |
1974 | &sh); | |
1975 | sh_name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
1976 | } | |
1977 | ||
1978 | if (search_symtab != NULL) | |
1979 | { | |
1980 | #if 0 | |
1981 | /* This loses both in the case mentioned (want a static, find a global), | |
c5aa993b JM |
1982 | but also if we are looking up a non-mangled name which happens to |
1983 | match the name of a mangled function. */ | |
c906108c | 1984 | /* We have to save the cur_fdr across the call to lookup_symbol. |
c5aa993b JM |
1985 | If the pdr is for a static function and if a global function with |
1986 | the same name exists, lookup_symbol will eventually read in the symtab | |
1987 | for the global function and clobber cur_fdr. */ | |
c906108c | 1988 | FDR *save_cur_fdr = cur_fdr; |
b8d56208 | 1989 | |
2570f2b7 | 1990 | s = lookup_symbol (sh_name, NULL, VAR_DOMAIN, 0); |
c906108c SS |
1991 | cur_fdr = save_cur_fdr; |
1992 | #else | |
1993 | s = mylookup_symbol | |
1994 | (sh_name, | |
1995 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK), | |
176620f1 | 1996 | VAR_DOMAIN, |
c906108c SS |
1997 | LOC_BLOCK); |
1998 | #endif | |
1999 | } | |
2000 | else | |
2001 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
176620f1 | 2002 | VAR_DOMAIN, LOC_BLOCK); |
c906108c SS |
2003 | |
2004 | if (s != 0) | |
2005 | { | |
2006 | b = SYMBOL_BLOCK_VALUE (s); | |
2007 | } | |
2008 | else | |
2009 | { | |
e2e0b3e5 | 2010 | complaint (&symfile_complaints, _("PDR for %s, but no symbol"), sh_name); |
c906108c SS |
2011 | #if 1 |
2012 | return; | |
2013 | #else | |
2014 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ | |
2015 | s = new_symbol (sh_name); | |
176620f1 | 2016 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c | 2017 | SYMBOL_CLASS (s) = LOC_BLOCK; |
025bb325 | 2018 | /* Donno its type, hope int is ok. */ |
0a9d309a | 2019 | SYMBOL_TYPE (s) |
46bf5051 | 2020 | = lookup_function_type (objfile_type (pst->objfile)->builtin_int); |
c7efd0b9 | 2021 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
025bb325 | 2022 | /* Won't have symbols for this one. */ |
c906108c SS |
2023 | b = new_block (2); |
2024 | SYMBOL_BLOCK_VALUE (s) = b; | |
2025 | BLOCK_FUNCTION (b) = s; | |
2026 | BLOCK_START (b) = pr->adr; | |
2027 | /* BOUND used to be the end of procedure's text, but the | |
c5aa993b | 2028 | argument is no longer passed in. */ |
c906108c SS |
2029 | BLOCK_END (b) = bound; |
2030 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
2031 | add_block (b, top_stack->cur_st); | |
2032 | #endif | |
2033 | } | |
2034 | ||
f92761ec | 2035 | i = mylookup_symbol (MDEBUG_EFI_SYMBOL_NAME, b, LABEL_DOMAIN, LOC_CONST); |
c906108c SS |
2036 | |
2037 | if (i) | |
2038 | { | |
9918cab9 JB |
2039 | struct mdebug_extra_func_info *e; |
2040 | ||
2041 | e = (struct mdebug_extra_func_info *) SYMBOL_VALUE_BYTES (i); | |
c906108c | 2042 | e->pdr = *pr; |
c906108c SS |
2043 | |
2044 | /* GDB expects the absolute function start address for the | |
c5aa993b JM |
2045 | procedure descriptor in e->pdr.adr. |
2046 | As the address in the procedure descriptor is usually relative, | |
2047 | we would have to relocate e->pdr.adr with cur_fdr->adr and | |
b8fbeb18 | 2048 | ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)). |
c5aa993b JM |
2049 | Unfortunately cur_fdr->adr and e->pdr.adr are both absolute |
2050 | in shared libraries on some systems, and on other systems | |
2051 | e->pdr.adr is sometimes offset by a bogus value. | |
2052 | To work around these problems, we replace e->pdr.adr with | |
2053 | the start address of the function. */ | |
c906108c | 2054 | e->pdr.adr = BLOCK_START (b); |
c906108c SS |
2055 | } |
2056 | ||
2057 | /* It would be reasonable that functions that have been compiled | |
2058 | without debugging info have a btNil type for their return value, | |
2059 | and functions that are void and are compiled with debugging info | |
2060 | have btVoid. | |
2061 | gcc and DEC f77 put out btNil types for both cases, so btNil is mapped | |
2062 | to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info' | |
2063 | case right. | |
2064 | The glevel field in cur_fdr could be used to determine the presence | |
2065 | of debugging info, but GCC doesn't always pass the -g switch settings | |
2066 | to the assembler and GAS doesn't set the glevel field from the -g switch | |
2067 | settings. | |
2068 | To work around these problems, the return value type of a TYPE_CODE_VOID | |
2069 | function is adjusted accordingly if no debugging info was found in the | |
2070 | compilation unit. */ | |
c5aa993b | 2071 | |
c906108c SS |
2072 | if (processing_gcc_compilation == 0 |
2073 | && found_ecoff_debugging_info == 0 | |
2074 | && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID) | |
46bf5051 | 2075 | SYMBOL_TYPE (s) = objfile_type (pst->objfile)->nodebug_text_symbol; |
c906108c SS |
2076 | } |
2077 | ||
025bb325 | 2078 | /* Parse the external symbol ES. Just call parse_symbol() after |
c906108c SS |
2079 | making sure we know where the aux are for it. |
2080 | BIGEND says whether aux entries are big-endian or little-endian. | |
2081 | ||
025bb325 | 2082 | This routine clobbers top_stack->cur_block and ->cur_st. */ |
c906108c | 2083 | |
a14ed312 KB |
2084 | static void parse_external (EXTR *, int, struct section_offsets *, |
2085 | struct objfile *); | |
c906108c SS |
2086 | |
2087 | static void | |
fba45db2 KB |
2088 | parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets, |
2089 | struct objfile *objfile) | |
c906108c SS |
2090 | { |
2091 | union aux_ext *ax; | |
2092 | ||
2093 | if (es->ifd != ifdNil) | |
2094 | { | |
2095 | cur_fd = es->ifd; | |
2096 | cur_fdr = debug_info->fdr + cur_fd; | |
2097 | ax = debug_info->external_aux + cur_fdr->iauxBase; | |
2098 | } | |
2099 | else | |
2100 | { | |
2101 | cur_fdr = debug_info->fdr; | |
2102 | ax = 0; | |
2103 | } | |
2104 | ||
2105 | /* Reading .o files */ | |
c5aa993b | 2106 | if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil) |
c906108c SS |
2107 | { |
2108 | char *what; | |
2109 | switch (es->asym.st) | |
2110 | { | |
2111 | case stNil: | |
2112 | /* These are generated for static symbols in .o files, | |
2113 | ignore them. */ | |
2114 | return; | |
2115 | case stStaticProc: | |
2116 | case stProc: | |
2117 | what = "procedure"; | |
2118 | n_undef_procs++; | |
2119 | break; | |
2120 | case stGlobal: | |
2121 | what = "variable"; | |
2122 | n_undef_vars++; | |
2123 | break; | |
2124 | case stLabel: | |
2125 | what = "label"; | |
2126 | n_undef_labels++; | |
2127 | break; | |
2128 | default: | |
2129 | what = "symbol"; | |
2130 | break; | |
2131 | } | |
2132 | n_undef_symbols++; | |
025bb325 | 2133 | /* FIXME: Turn this into a complaint? */ |
c906108c | 2134 | if (info_verbose) |
a3f17187 | 2135 | printf_filtered (_("Warning: %s `%s' is undefined (in %s)\n"), |
c906108c SS |
2136 | what, debug_info->ssext + es->asym.iss, |
2137 | fdr_name (cur_fdr)); | |
2138 | return; | |
2139 | } | |
2140 | ||
2141 | switch (es->asym.st) | |
2142 | { | |
2143 | case stProc: | |
2144 | case stStaticProc: | |
2145 | /* There is no need to parse the external procedure symbols. | |
c5aa993b JM |
2146 | If they are from objects compiled without -g, their index will |
2147 | be indexNil, and the symbol definition from the minimal symbol | |
2148 | is preferrable (yielding a function returning int instead of int). | |
2149 | If the index points to a local procedure symbol, the local | |
2150 | symbol already provides the correct type. | |
2151 | Note that the index of the external procedure symbol points | |
2152 | to the local procedure symbol in the local symbol table, and | |
2153 | _not_ to the auxiliary symbol info. */ | |
c906108c SS |
2154 | break; |
2155 | case stGlobal: | |
2156 | case stLabel: | |
2157 | /* Global common symbols are resolved by the runtime loader, | |
c5aa993b JM |
2158 | ignore them. */ |
2159 | if (SC_IS_COMMON (es->asym.sc)) | |
c906108c SS |
2160 | break; |
2161 | ||
2162 | /* Note that the case of a symbol with indexNil must be handled | |
c5aa993b | 2163 | anyways by parse_symbol(). */ |
3e43a32a MS |
2164 | parse_symbol (&es->asym, ax, (char *) NULL, |
2165 | bigend, section_offsets, objfile); | |
c906108c SS |
2166 | break; |
2167 | default: | |
2168 | break; | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | /* Parse the line number info for file descriptor FH into | |
2173 | GDB's linetable LT. MIPS' encoding requires a little bit | |
2174 | of magic to get things out. Note also that MIPS' line | |
2175 | numbers can go back and forth, apparently we can live | |
025bb325 | 2176 | with that and do not need to reorder our linetables. */ |
c906108c | 2177 | |
a14ed312 KB |
2178 | static void parse_lines (FDR *, PDR *, struct linetable *, int, |
2179 | struct partial_symtab *, CORE_ADDR); | |
c906108c SS |
2180 | |
2181 | static void | |
fba45db2 KB |
2182 | parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines, |
2183 | struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr) | |
c906108c SS |
2184 | { |
2185 | unsigned char *base; | |
2186 | int j, k; | |
2187 | int delta, count, lineno = 0; | |
2188 | ||
2189 | if (fh->cbLine == 0) | |
2190 | return; | |
2191 | ||
025bb325 | 2192 | /* Scan by procedure descriptors. */ |
c906108c SS |
2193 | k = 0; |
2194 | for (j = 0; j < fh->cpd; j++, pr++) | |
2195 | { | |
2196 | CORE_ADDR l; | |
2197 | CORE_ADDR adr; | |
2198 | unsigned char *halt; | |
2199 | ||
025bb325 | 2200 | /* No code for this one. */ |
c906108c SS |
2201 | if (pr->iline == ilineNil || |
2202 | pr->lnLow == -1 || pr->lnHigh == -1) | |
2203 | continue; | |
2204 | ||
2205 | /* Determine start and end address of compressed line bytes for | |
c5aa993b | 2206 | this procedure. */ |
c906108c SS |
2207 | base = debug_info->line + fh->cbLineOffset; |
2208 | if (j != (fh->cpd - 1)) | |
c5aa993b | 2209 | halt = base + pr[1].cbLineOffset; |
c906108c | 2210 | else |
c5aa993b | 2211 | halt = base + fh->cbLine; |
c906108c SS |
2212 | base += pr->cbLineOffset; |
2213 | ||
5afc051b | 2214 | adr = pst->textlow + pr->adr - lowest_pdr_addr; |
c906108c SS |
2215 | |
2216 | l = adr >> 2; /* in words */ | |
c5aa993b | 2217 | for (lineno = pr->lnLow; base < halt;) |
c906108c SS |
2218 | { |
2219 | count = *base & 0x0f; | |
2220 | delta = *base++ >> 4; | |
2221 | if (delta >= 8) | |
2222 | delta -= 16; | |
2223 | if (delta == -8) | |
2224 | { | |
2225 | delta = (base[0] << 8) | base[1]; | |
2226 | if (delta >= 0x8000) | |
2227 | delta -= 0x10000; | |
2228 | base += 2; | |
2229 | } | |
2230 | lineno += delta; /* first delta is 0 */ | |
2231 | ||
025bb325 | 2232 | /* Complain if the line table overflows. Could happen |
c906108c SS |
2233 | with corrupt binaries. */ |
2234 | if (lt->nitems >= maxlines) | |
2235 | { | |
23136709 | 2236 | complaint (&symfile_complaints, |
e2e0b3e5 | 2237 | _("guessed size of linetable for %s incorrectly"), |
23136709 | 2238 | fdr_name (fh)); |
c906108c SS |
2239 | break; |
2240 | } | |
2241 | k = add_line (lt, lineno, l, k); | |
2242 | l += count + 1; | |
2243 | } | |
2244 | } | |
2245 | } | |
2246 | \f | |
23136709 KB |
2247 | static void |
2248 | function_outside_compilation_unit_complaint (const char *arg1) | |
2249 | { | |
2250 | complaint (&symfile_complaints, | |
3e43a32a MS |
2251 | _("function `%s' appears to be defined " |
2252 | "outside of all compilation units"), | |
23136709 KB |
2253 | arg1); |
2254 | } | |
2255 | ||
1f9872de JB |
2256 | /* Use the STORAGE_CLASS to compute which section the given symbol |
2257 | belongs to, and then records this new minimal symbol. */ | |
2258 | ||
2259 | static void | |
2260 | record_minimal_symbol (const char *name, const CORE_ADDR address, | |
2261 | enum minimal_symbol_type ms_type, int storage_class, | |
2262 | struct objfile *objfile) | |
2263 | { | |
2264 | int section; | |
2265 | asection *bfd_section; | |
2266 | ||
2267 | switch (storage_class) | |
2268 | { | |
2269 | case scText: | |
2270 | section = SECT_OFF_TEXT (objfile); | |
2271 | bfd_section = bfd_get_section_by_name (cur_bfd, ".text"); | |
2272 | break; | |
2273 | case scData: | |
2274 | section = SECT_OFF_DATA (objfile); | |
2275 | bfd_section = bfd_get_section_by_name (cur_bfd, ".data"); | |
2276 | break; | |
2277 | case scBss: | |
2278 | section = SECT_OFF_BSS (objfile); | |
2279 | bfd_section = bfd_get_section_by_name (cur_bfd, ".bss"); | |
2280 | break; | |
2281 | case scSData: | |
2282 | section = get_section_index (objfile, ".sdata"); | |
2283 | bfd_section = bfd_get_section_by_name (cur_bfd, ".sdata"); | |
2284 | break; | |
2285 | case scSBss: | |
2286 | section = get_section_index (objfile, ".sbss"); | |
2287 | bfd_section = bfd_get_section_by_name (cur_bfd, ".sbss"); | |
2288 | break; | |
2289 | case scRData: | |
2290 | section = get_section_index (objfile, ".rdata"); | |
2291 | bfd_section = bfd_get_section_by_name (cur_bfd, ".rdata"); | |
2292 | break; | |
2293 | case scInit: | |
2294 | section = get_section_index (objfile, ".init"); | |
2295 | bfd_section = bfd_get_section_by_name (cur_bfd, ".init"); | |
2296 | break; | |
2297 | case scXData: | |
2298 | section = get_section_index (objfile, ".xdata"); | |
2299 | bfd_section = bfd_get_section_by_name (cur_bfd, ".xdata"); | |
2300 | break; | |
2301 | case scPData: | |
2302 | section = get_section_index (objfile, ".pdata"); | |
2303 | bfd_section = bfd_get_section_by_name (cur_bfd, ".pdata"); | |
2304 | break; | |
2305 | case scFini: | |
2306 | section = get_section_index (objfile, ".fini"); | |
2307 | bfd_section = bfd_get_section_by_name (cur_bfd, ".fini"); | |
2308 | break; | |
2309 | case scRConst: | |
2310 | section = get_section_index (objfile, ".rconst"); | |
2311 | bfd_section = bfd_get_section_by_name (cur_bfd, ".rconst"); | |
2312 | break; | |
2313 | #ifdef scTlsData | |
2314 | case scTlsData: | |
2315 | section = get_section_index (objfile, ".tlsdata"); | |
2316 | bfd_section = bfd_get_section_by_name (cur_bfd, ".tlsdata"); | |
2317 | break; | |
2318 | #endif | |
2319 | #ifdef scTlsBss | |
2320 | case scTlsBss: | |
2321 | section = get_section_index (objfile, ".tlsbss"); | |
2322 | bfd_section = bfd_get_section_by_name (cur_bfd, ".tlsbss"); | |
2323 | break; | |
2324 | #endif | |
2325 | default: | |
2326 | /* This kind of symbol is not associated to a section. */ | |
2327 | section = -1; | |
2328 | bfd_section = NULL; | |
2329 | } | |
2330 | ||
b887350f | 2331 | prim_record_minimal_symbol_and_info (name, address, ms_type, |
1f9872de JB |
2332 | section, bfd_section, objfile); |
2333 | } | |
2334 | ||
c906108c SS |
2335 | /* Master parsing procedure for first-pass reading of file symbols |
2336 | into a partial_symtab. */ | |
2337 | ||
2338 | static void | |
fba45db2 | 2339 | parse_partial_symbols (struct objfile *objfile) |
c906108c | 2340 | { |
5e2b427d | 2341 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
2342 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
2343 | const bfd_size_type external_rfd_size = debug_swap->external_rfd_size; | |
2344 | const bfd_size_type external_ext_size = debug_swap->external_ext_size; | |
12b9c64f AO |
2345 | void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in; |
2346 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; | |
2347 | void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in; | |
c906108c SS |
2348 | int f_idx, s_idx; |
2349 | HDRR *hdr = &debug_info->symbolic_header; | |
2350 | /* Running pointers */ | |
2351 | FDR *fh; | |
2352 | char *ext_out; | |
2353 | char *ext_out_end; | |
2354 | EXTR *ext_block; | |
52f0bd74 | 2355 | EXTR *ext_in; |
c906108c SS |
2356 | EXTR *ext_in_end; |
2357 | SYMR sh; | |
2358 | struct partial_symtab *pst; | |
2359 | int textlow_not_set = 1; | |
2360 | int past_first_source_file = 0; | |
2361 | ||
025bb325 | 2362 | /* List of current psymtab's include files. */ |
c906108c SS |
2363 | char **psymtab_include_list; |
2364 | int includes_allocated; | |
2365 | int includes_used; | |
2366 | EXTR *extern_tab; | |
2367 | struct pst_map *fdr_to_pst; | |
025bb325 | 2368 | /* Index within current psymtab dependency list. */ |
c906108c SS |
2369 | struct partial_symtab **dependency_list; |
2370 | int dependencies_used, dependencies_allocated; | |
2371 | struct cleanup *old_chain; | |
2372 | char *name; | |
2373 | enum language prev_language; | |
2374 | asection *text_sect; | |
2375 | int relocatable = 0; | |
2376 | ||
2377 | /* Irix 5.2 shared libraries have a fh->adr field of zero, but | |
2378 | the shared libraries are prelinked at a high memory address. | |
2379 | We have to adjust the start address of the object file for this case, | |
2380 | by setting it to the start address of the first procedure in the file. | |
2381 | But we should do no adjustments if we are debugging a .o file, where | |
2382 | the text section (and fh->adr) really starts at zero. */ | |
2383 | text_sect = bfd_get_section_by_name (cur_bfd, ".text"); | |
2384 | if (text_sect != NULL | |
2385 | && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC)) | |
2386 | relocatable = 1; | |
2387 | ||
8b92e4d5 | 2388 | extern_tab = (EXTR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
2389 | sizeof (EXTR) * hdr->iextMax); |
2390 | ||
2391 | includes_allocated = 30; | |
2392 | includes_used = 0; | |
2393 | psymtab_include_list = (char **) alloca (includes_allocated * | |
2394 | sizeof (char *)); | |
2395 | next_symbol_text_func = mdebug_next_symbol_text; | |
2396 | ||
2397 | dependencies_allocated = 30; | |
2398 | dependencies_used = 0; | |
2399 | dependency_list = | |
2400 | (struct partial_symtab **) alloca (dependencies_allocated * | |
2401 | sizeof (struct partial_symtab *)); | |
2402 | ||
2403 | last_source_file = NULL; | |
2404 | ||
2405 | /* | |
2406 | * Big plan: | |
2407 | * | |
2408 | * Only parse the Local and External symbols, and the Relative FDR. | |
2409 | * Fixup enough of the loader symtab to be able to use it. | |
2410 | * Allocate space only for the file's portions we need to | |
025bb325 | 2411 | * look at. (XXX) |
c906108c SS |
2412 | */ |
2413 | ||
2414 | max_gdbinfo = 0; | |
2415 | max_glevel = MIN_GLEVEL; | |
2416 | ||
2417 | /* Allocate the map FDR -> PST. | |
2418 | Minor hack: -O3 images might claim some global data belongs | |
025bb325 | 2419 | to FDR -1. We`ll go along with that. */ |
3e43a32a MS |
2420 | fdr_to_pst = (struct pst_map *) |
2421 | xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst); | |
b8c9b27d | 2422 | old_chain = make_cleanup (xfree, fdr_to_pst); |
c906108c SS |
2423 | fdr_to_pst++; |
2424 | { | |
d4f3574e | 2425 | struct partial_symtab *pst = new_psymtab ("", objfile); |
b8d56208 | 2426 | |
c906108c SS |
2427 | fdr_to_pst[-1].pst = pst; |
2428 | FDR_IDX (pst) = -1; | |
2429 | } | |
2430 | ||
2431 | /* Allocate the global pending list. */ | |
2432 | pending_list = | |
2433 | ((struct mdebug_pending **) | |
8b92e4d5 | 2434 | obstack_alloc (&objfile->objfile_obstack, |
c906108c | 2435 | hdr->ifdMax * sizeof (struct mdebug_pending *))); |
12b9c64f | 2436 | memset (pending_list, 0, |
c906108c SS |
2437 | hdr->ifdMax * sizeof (struct mdebug_pending *)); |
2438 | ||
2439 | /* Pass 0 over external syms: swap them in. */ | |
2440 | ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR)); | |
b8c9b27d | 2441 | make_cleanup (xfree, ext_block); |
c906108c SS |
2442 | |
2443 | ext_out = (char *) debug_info->external_ext; | |
2444 | ext_out_end = ext_out + hdr->iextMax * external_ext_size; | |
2445 | ext_in = ext_block; | |
2446 | for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++) | |
2447 | (*swap_ext_in) (cur_bfd, ext_out, ext_in); | |
2448 | ||
025bb325 | 2449 | /* Pass 1 over external syms: Presize and partition the list. */ |
c906108c SS |
2450 | ext_in = ext_block; |
2451 | ext_in_end = ext_in + hdr->iextMax; | |
2452 | for (; ext_in < ext_in_end; ext_in++) | |
2453 | { | |
2454 | /* See calls to complain below. */ | |
2455 | if (ext_in->ifd >= -1 | |
2456 | && ext_in->ifd < hdr->ifdMax | |
2457 | && ext_in->asym.iss >= 0 | |
2458 | && ext_in->asym.iss < hdr->issExtMax) | |
2459 | fdr_to_pst[ext_in->ifd].n_globals++; | |
2460 | } | |
2461 | ||
025bb325 | 2462 | /* Pass 1.5 over files: partition out global symbol space. */ |
c906108c SS |
2463 | s_idx = 0; |
2464 | for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) | |
2465 | { | |
2466 | fdr_to_pst[f_idx].globals_offset = s_idx; | |
2467 | s_idx += fdr_to_pst[f_idx].n_globals; | |
2468 | fdr_to_pst[f_idx].n_globals = 0; | |
2469 | } | |
2470 | ||
2471 | /* ECOFF in ELF: | |
2472 | ||
2473 | For ECOFF in ELF, we skip the creation of the minimal symbols. | |
2474 | The ECOFF symbols should be a subset of the Elf symbols, and the | |
2475 | section information of the elf symbols will be more accurate. | |
2476 | FIXME! What about Irix 5's native linker? | |
2477 | ||
2478 | By default, Elf sections which don't exist in ECOFF | |
2479 | get put in ECOFF's absolute section by the gnu linker. | |
2480 | Since absolute sections don't get relocated, we | |
2481 | end up calculating an address different from that of | |
2482 | the symbol's minimal symbol (created earlier from the | |
025bb325 | 2483 | Elf symtab). |
c906108c SS |
2484 | |
2485 | To fix this, either : | |
2486 | 1) don't create the duplicate symbol | |
c5aa993b JM |
2487 | (assumes ECOFF symtab is a subset of the ELF symtab; |
2488 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2489 | 2) create it, only if lookup for existing symbol in ELF's minimal |
c5aa993b JM |
2490 | symbols fails |
2491 | (inefficient; | |
2492 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2493 | 3) create it, but lookup ELF's minimal symbol and use it's section |
c5aa993b JM |
2494 | during relocation, then modify "uniqify" phase to merge and |
2495 | eliminate the duplicate symbol | |
2496 | (highly inefficient) | |
c906108c SS |
2497 | |
2498 | I've implemented #1 here... | |
2499 | Skip the creation of the minimal symbols based on the ECOFF | |
025bb325 | 2500 | symbol table. */ |
c906108c | 2501 | |
025bb325 | 2502 | /* Pass 2 over external syms: fill in external symbols. */ |
c5aa993b JM |
2503 | ext_in = ext_block; |
2504 | ext_in_end = ext_in + hdr->iextMax; | |
2505 | for (; ext_in < ext_in_end; ext_in++) | |
2506 | { | |
2507 | enum minimal_symbol_type ms_type = mst_text; | |
2508 | CORE_ADDR svalue = ext_in->asym.value; | |
c906108c | 2509 | |
c5aa993b JM |
2510 | /* The Irix 5 native tools seem to sometimes generate bogus |
2511 | external symbols. */ | |
2512 | if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax) | |
2513 | { | |
23136709 | 2514 | complaint (&symfile_complaints, |
3e43a32a MS |
2515 | _("bad ifd for external symbol: %d (max %ld)"), |
2516 | ext_in->ifd, hdr->ifdMax); | |
c5aa993b JM |
2517 | continue; |
2518 | } | |
2519 | if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax) | |
2520 | { | |
23136709 | 2521 | complaint (&symfile_complaints, |
e2e0b3e5 | 2522 | _("bad iss for external symbol: %ld (max %ld)"), |
23136709 | 2523 | ext_in->asym.iss, hdr->issExtMax); |
c5aa993b JM |
2524 | continue; |
2525 | } | |
c906108c | 2526 | |
c5aa993b JM |
2527 | extern_tab[fdr_to_pst[ext_in->ifd].globals_offset |
2528 | + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in; | |
c906108c SS |
2529 | |
2530 | ||
c5aa993b JM |
2531 | if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil) |
2532 | continue; | |
c906108c | 2533 | |
c906108c | 2534 | |
025bb325 | 2535 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c5aa993b JM |
2536 | name = debug_info->ssext + ext_in->asym.iss; |
2537 | ||
025bb325 | 2538 | /* Process ECOFF Symbol Types and Storage Classes. */ |
c5aa993b JM |
2539 | switch (ext_in->asym.st) |
2540 | { | |
2541 | case stProc: | |
2542 | /* Beginnning of Procedure */ | |
3e43a32a MS |
2543 | svalue += ANOFFSET (objfile->section_offsets, |
2544 | SECT_OFF_TEXT (objfile)); | |
c5aa993b JM |
2545 | break; |
2546 | case stStaticProc: | |
2547 | /* Load time only static procs */ | |
2548 | ms_type = mst_file_text; | |
3e43a32a MS |
2549 | svalue += ANOFFSET (objfile->section_offsets, |
2550 | SECT_OFF_TEXT (objfile)); | |
c5aa993b JM |
2551 | break; |
2552 | case stGlobal: | |
2553 | /* External symbol */ | |
2554 | if (SC_IS_COMMON (ext_in->asym.sc)) | |
2555 | { | |
2556 | /* The value of a common symbol is its size, not its address. | |
2557 | Ignore it. */ | |
c906108c | 2558 | continue; |
c5aa993b JM |
2559 | } |
2560 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2561 | { | |
2562 | ms_type = mst_data; | |
3e43a32a MS |
2563 | svalue += ANOFFSET (objfile->section_offsets, |
2564 | SECT_OFF_DATA (objfile)); | |
c5aa993b JM |
2565 | } |
2566 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2567 | { | |
2568 | ms_type = mst_bss; | |
3e43a32a MS |
2569 | svalue += ANOFFSET (objfile->section_offsets, |
2570 | SECT_OFF_BSS (objfile)); | |
c5aa993b | 2571 | } |
0e931cf0 JB |
2572 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2573 | { | |
2574 | ms_type = mst_bss; | |
2575 | svalue += ANOFFSET (objfile->section_offsets, | |
2576 | get_section_index (objfile, ".sbss")); | |
2577 | } | |
c5aa993b JM |
2578 | else |
2579 | ms_type = mst_abs; | |
2580 | break; | |
2581 | case stLabel: | |
2582 | /* Label */ | |
0e931cf0 JB |
2583 | |
2584 | /* On certain platforms, some extra label symbols can be | |
025bb325 | 2585 | generated by the linker. One possible usage for this kind |
0e931cf0 | 2586 | of symbols is to represent the address of the begining of a |
025bb325 | 2587 | given section. For instance, on Tru64 5.1, the address of |
0e931cf0 JB |
2588 | the _ftext label is the start address of the .text section. |
2589 | ||
2590 | The storage class of these symbols is usually directly | |
025bb325 | 2591 | related to the section to which the symbol refers. For |
0e931cf0 JB |
2592 | instance, on Tru64 5.1, the storage class for the _fdata |
2593 | label is scData, refering to the .data section. | |
2594 | ||
2595 | It is actually possible that the section associated to the | |
025bb325 | 2596 | storage class of the label does not exist. On True64 5.1 |
0e931cf0 JB |
2597 | for instance, the libm.so shared library does not contain |
2598 | any .data section, although it contains a _fpdata label | |
025bb325 | 2599 | which storage class is scData... Since these symbols are |
0e931cf0 | 2600 | usually useless for the debugger user anyway, we just |
025bb325 | 2601 | discard these symbols. */ |
0e931cf0 | 2602 | |
c5aa993b JM |
2603 | if (SC_IS_TEXT (ext_in->asym.sc)) |
2604 | { | |
0e931cf0 JB |
2605 | if (objfile->sect_index_text == -1) |
2606 | continue; | |
2607 | ||
c5aa993b | 2608 | ms_type = mst_file_text; |
3e43a32a MS |
2609 | svalue += ANOFFSET (objfile->section_offsets, |
2610 | SECT_OFF_TEXT (objfile)); | |
c5aa993b JM |
2611 | } |
2612 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2613 | { | |
0e931cf0 JB |
2614 | if (objfile->sect_index_data == -1) |
2615 | continue; | |
2616 | ||
c5aa993b | 2617 | ms_type = mst_file_data; |
3e43a32a MS |
2618 | svalue += ANOFFSET (objfile->section_offsets, |
2619 | SECT_OFF_DATA (objfile)); | |
c5aa993b JM |
2620 | } |
2621 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2622 | { | |
0e931cf0 JB |
2623 | if (objfile->sect_index_bss == -1) |
2624 | continue; | |
2625 | ||
c5aa993b | 2626 | ms_type = mst_file_bss; |
3e43a32a MS |
2627 | svalue += ANOFFSET (objfile->section_offsets, |
2628 | SECT_OFF_BSS (objfile)); | |
c5aa993b | 2629 | } |
0e931cf0 JB |
2630 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2631 | { | |
2632 | const int sbss_sect_index = get_section_index (objfile, ".sbss"); | |
2633 | ||
2634 | if (sbss_sect_index == -1) | |
2635 | continue; | |
2636 | ||
2637 | ms_type = mst_file_bss; | |
2638 | svalue += ANOFFSET (objfile->section_offsets, sbss_sect_index); | |
2639 | } | |
c5aa993b JM |
2640 | else |
2641 | ms_type = mst_abs; | |
2642 | break; | |
2643 | case stLocal: | |
2644 | case stNil: | |
2645 | /* The alpha has the section start addresses in stLocal symbols | |
025bb325 | 2646 | whose name starts with a `.'. Skip those but complain for all |
c5aa993b JM |
2647 | other stLocal symbols. |
2648 | Irix6 puts the section start addresses in stNil symbols, skip | |
025bb325 | 2649 | those too. */ |
c5aa993b JM |
2650 | if (name[0] == '.') |
2651 | continue; | |
2652 | /* Fall through. */ | |
2653 | default: | |
2654 | ms_type = mst_unknown; | |
23136709 | 2655 | unknown_ext_complaint (name); |
c5aa993b JM |
2656 | } |
2657 | if (!ECOFF_IN_ELF (cur_bfd)) | |
1f9872de JB |
2658 | record_minimal_symbol (name, svalue, ms_type, ext_in->asym.sc, |
2659 | objfile); | |
c5aa993b | 2660 | } |
c906108c | 2661 | |
025bb325 | 2662 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c906108c SS |
2663 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
2664 | { | |
2665 | struct partial_symtab *save_pst; | |
2666 | EXTR *ext_ptr; | |
2667 | CORE_ADDR textlow; | |
2668 | ||
2669 | cur_fdr = fh = debug_info->fdr + f_idx; | |
2670 | ||
2671 | if (fh->csym == 0) | |
2672 | { | |
2673 | fdr_to_pst[f_idx].pst = NULL; | |
2674 | continue; | |
2675 | } | |
2676 | ||
2677 | /* Determine the start address for this object file from the | |
c5aa993b | 2678 | file header and relocate it, except for Irix 5.2 zero fh->adr. */ |
c906108c SS |
2679 | if (fh->cpd) |
2680 | { | |
2681 | textlow = fh->adr; | |
2682 | if (relocatable || textlow != 0) | |
3e43a32a MS |
2683 | textlow += ANOFFSET (objfile->section_offsets, |
2684 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2685 | } |
2686 | else | |
2687 | textlow = 0; | |
d4f3574e | 2688 | pst = start_psymtab_common (objfile, objfile->section_offsets, |
c906108c SS |
2689 | fdr_name (fh), |
2690 | textlow, | |
2691 | objfile->global_psymbols.next, | |
2692 | objfile->static_psymbols.next); | |
e38df1d0 TT |
2693 | pst->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
2694 | sizeof (struct symloc)); | |
12b9c64f | 2695 | memset (pst->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
2696 | |
2697 | save_pst = pst; | |
2698 | FDR_IDX (pst) = f_idx; | |
2699 | CUR_BFD (pst) = cur_bfd; | |
2700 | DEBUG_SWAP (pst) = debug_swap; | |
2701 | DEBUG_INFO (pst) = debug_info; | |
2702 | PENDING_LIST (pst) = pending_list; | |
2703 | ||
025bb325 | 2704 | /* The way to turn this into a symtab is to call... */ |
c906108c SS |
2705 | pst->read_symtab = mdebug_psymtab_to_symtab; |
2706 | ||
2707 | /* Set up language for the pst. | |
2708 | The language from the FDR is used if it is unambigious (e.g. cfront | |
c5aa993b JM |
2709 | with native cc and g++ will set the language to C). |
2710 | Otherwise we have to deduce the language from the filename. | |
2711 | Native ecoff has every header file in a separate FDR, so | |
2712 | deduce_language_from_filename will return language_unknown for | |
2713 | a header file, which is not what we want. | |
2714 | But the FDRs for the header files are after the FDR for the source | |
2715 | file, so we can assign the language of the source file to the | |
025bb325 | 2716 | following header files. Then we save the language in the private |
c5aa993b | 2717 | pst data so that we can reuse it when building symtabs. */ |
c906108c SS |
2718 | prev_language = psymtab_language; |
2719 | ||
2720 | switch (fh->lang) | |
2721 | { | |
2722 | case langCplusplusV2: | |
2723 | psymtab_language = language_cplus; | |
2724 | break; | |
2725 | default: | |
2726 | psymtab_language = deduce_language_from_filename (fdr_name (fh)); | |
2727 | break; | |
2728 | } | |
2729 | if (psymtab_language == language_unknown) | |
2730 | psymtab_language = prev_language; | |
2731 | PST_PRIVATE (pst)->pst_language = psymtab_language; | |
2732 | ||
5afc051b | 2733 | pst->texthigh = pst->textlow; |
c906108c SS |
2734 | |
2735 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
c5aa993b JM |
2736 | This symbol is emitted by mips-tfile to signal that the |
2737 | current object file uses encapsulated stabs instead of mips | |
2738 | ecoff for local symbols. (It is the second symbol because | |
2739 | the first symbol is the stFile used to signal the start of a | |
025bb325 | 2740 | file). */ |
c906108c SS |
2741 | processing_gcc_compilation = 0; |
2742 | if (fh->csym >= 2) | |
2743 | { | |
2744 | (*swap_sym_in) (cur_bfd, | |
2745 | ((char *) debug_info->external_sym | |
2746 | + (fh->isymBase + 1) * external_sym_size), | |
2747 | &sh); | |
ee300cd4 AC |
2748 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
2749 | stabs_symbol) == 0) | |
c906108c SS |
2750 | processing_gcc_compilation = 2; |
2751 | } | |
2752 | ||
2753 | if (processing_gcc_compilation != 0) | |
2754 | { | |
2755 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2756 | { | |
2757 | int type_code; | |
2758 | char *namestring; | |
2759 | ||
2760 | (*swap_sym_in) (cur_bfd, | |
2761 | (((char *) debug_info->external_sym) | |
c5aa993b | 2762 | + (fh->isymBase + cur_sdx) * external_sym_size), |
c906108c SS |
2763 | &sh); |
2764 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2765 | if (!ECOFF_IS_STAB (&sh)) | |
2766 | { | |
2767 | if (sh.st == stProc || sh.st == stStaticProc) | |
2768 | { | |
2769 | CORE_ADDR procaddr; | |
2770 | long isym; | |
c5aa993b | 2771 | |
3e43a32a MS |
2772 | sh.value += ANOFFSET (objfile->section_offsets, |
2773 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2774 | if (sh.st == stStaticProc) |
2775 | { | |
2776 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
1f9872de JB |
2777 | record_minimal_symbol (namestring, sh.value, |
2778 | mst_file_text, sh.sc, | |
2779 | objfile); | |
c906108c SS |
2780 | } |
2781 | procaddr = sh.value; | |
2782 | ||
2783 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2784 | (debug_info->external_aux | |
2785 | + fh->iauxBase | |
2786 | + sh.index)); | |
2787 | (*swap_sym_in) (cur_bfd, | |
2788 | ((char *) debug_info->external_sym | |
2789 | + ((fh->isymBase + isym - 1) | |
2790 | * external_sym_size)), | |
2791 | &sh); | |
2792 | if (sh.st == stEnd) | |
2793 | { | |
2794 | CORE_ADDR high = procaddr + sh.value; | |
2795 | ||
c5aa993b | 2796 | /* Kludge for Irix 5.2 zero fh->adr. */ |
c906108c | 2797 | if (!relocatable |
5afc051b JB |
2798 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
2799 | pst->textlow = procaddr; | |
2800 | if (high > pst->texthigh) | |
2801 | pst->texthigh = high; | |
c906108c SS |
2802 | } |
2803 | } | |
2804 | else if (sh.st == stStatic) | |
2805 | { | |
2806 | switch (sh.sc) | |
2807 | { | |
2808 | case scUndefined: | |
2809 | case scSUndefined: | |
2810 | case scNil: | |
2811 | case scAbs: | |
2812 | break; | |
2813 | ||
2814 | case scData: | |
2815 | case scSData: | |
2816 | case scRData: | |
2817 | case scPData: | |
2818 | case scXData: | |
2819 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
3e43a32a MS |
2820 | sh.value += ANOFFSET (objfile->section_offsets, |
2821 | SECT_OFF_DATA (objfile)); | |
1f9872de JB |
2822 | record_minimal_symbol (namestring, sh.value, |
2823 | mst_file_data, sh.sc, | |
2824 | objfile); | |
c906108c SS |
2825 | break; |
2826 | ||
2827 | default: | |
2828 | /* FIXME! Shouldn't this use cases for bss, | |
025bb325 | 2829 | then have the default be abs? */ |
c906108c | 2830 | namestring = debug_info->ss + fh->issBase + sh.iss; |
3e43a32a MS |
2831 | sh.value += ANOFFSET (objfile->section_offsets, |
2832 | SECT_OFF_BSS (objfile)); | |
1f9872de JB |
2833 | record_minimal_symbol (namestring, sh.value, |
2834 | mst_file_bss, sh.sc, | |
2835 | objfile); | |
c906108c SS |
2836 | break; |
2837 | } | |
2838 | } | |
2839 | continue; | |
2840 | } | |
025bb325 | 2841 | /* Handle stabs continuation. */ |
c906108c SS |
2842 | { |
2843 | char *stabstring = debug_info->ss + fh->issBase + sh.iss; | |
2844 | int len = strlen (stabstring); | |
b8d56208 | 2845 | |
c5aa993b | 2846 | while (stabstring[len - 1] == '\\') |
c906108c SS |
2847 | { |
2848 | SYMR sh2; | |
2849 | char *stabstring1 = stabstring; | |
2850 | char *stabstring2; | |
2851 | int len2; | |
2852 | ||
025bb325 | 2853 | /* Ignore continuation char from 1st string. */ |
c906108c SS |
2854 | len--; |
2855 | ||
025bb325 | 2856 | /* Read next stabstring. */ |
c906108c SS |
2857 | cur_sdx++; |
2858 | (*swap_sym_in) (cur_bfd, | |
2859 | (((char *) debug_info->external_sym) | |
c5aa993b | 2860 | + (fh->isymBase + cur_sdx) |
c906108c SS |
2861 | * external_sym_size), |
2862 | &sh2); | |
2863 | stabstring2 = debug_info->ss + fh->issBase + sh2.iss; | |
2864 | len2 = strlen (stabstring2); | |
2865 | ||
025bb325 | 2866 | /* Concatinate stabstring2 with stabstring1. */ |
c906108c | 2867 | if (stabstring |
c5aa993b | 2868 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
c906108c SS |
2869 | stabstring = xrealloc (stabstring, len + len2 + 1); |
2870 | else | |
86f902e0 FF |
2871 | { |
2872 | stabstring = xmalloc (len + len2 + 1); | |
2873 | strcpy (stabstring, stabstring1); | |
2874 | } | |
c906108c SS |
2875 | strcpy (stabstring + len, stabstring2); |
2876 | len += len2; | |
2877 | } | |
2878 | ||
d3119d1e EZ |
2879 | switch (type_code) |
2880 | { | |
d3119d1e | 2881 | char *p; |
b8d56208 | 2882 | |
3e43a32a | 2883 | /* Standard, external, non-debugger, symbols. */ |
d3119d1e EZ |
2884 | |
2885 | case N_TEXT | N_EXT: | |
2886 | case N_NBTEXT | N_EXT: | |
3e43a32a MS |
2887 | sh.value += ANOFFSET (objfile->section_offsets, |
2888 | SECT_OFF_TEXT (objfile)); | |
d3119d1e EZ |
2889 | goto record_it; |
2890 | ||
2891 | case N_DATA | N_EXT: | |
2892 | case N_NBDATA | N_EXT: | |
3e43a32a MS |
2893 | sh.value += ANOFFSET (objfile->section_offsets, |
2894 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2895 | goto record_it; |
2896 | ||
2897 | case N_BSS: | |
2898 | case N_BSS | N_EXT: | |
2899 | case N_NBBSS | N_EXT: | |
025bb325 | 2900 | case N_SETV | N_EXT: /* FIXME, is this in BSS? */ |
3e43a32a MS |
2901 | sh.value += ANOFFSET (objfile->section_offsets, |
2902 | SECT_OFF_BSS (objfile)); | |
d3119d1e EZ |
2903 | goto record_it; |
2904 | ||
2905 | case N_ABS | N_EXT: | |
2906 | record_it: | |
b98bd911 | 2907 | continue; |
d3119d1e | 2908 | |
025bb325 | 2909 | /* Standard, local, non-debugger, symbols. */ |
d3119d1e EZ |
2910 | |
2911 | case N_NBTEXT: | |
2912 | ||
3e43a32a MS |
2913 | /* We need to be able to deal with both N_FN or |
2914 | N_TEXT, because we have no way of knowing | |
2915 | whether the sys-supplied ld or GNU ld was used | |
2916 | to make the executable. Sequents throw in | |
2917 | another wrinkle -- they renumbered N_FN. */ | |
d3119d1e EZ |
2918 | |
2919 | case N_FN: | |
2920 | case N_FN_SEQ: | |
2921 | case N_TEXT: | |
2922 | continue; | |
2923 | ||
2924 | case N_DATA: | |
3e43a32a MS |
2925 | sh.value += ANOFFSET (objfile->section_offsets, |
2926 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2927 | goto record_it; |
2928 | ||
2929 | case N_UNDF | N_EXT: | |
025bb325 | 2930 | continue; /* Just undefined, not COMMON. */ |
d3119d1e EZ |
2931 | |
2932 | case N_UNDF: | |
2933 | continue; | |
2934 | ||
2935 | /* Lots of symbol types we can just ignore. */ | |
2936 | ||
2937 | case N_ABS: | |
2938 | case N_NBDATA: | |
2939 | case N_NBBSS: | |
2940 | continue; | |
2941 | ||
025bb325 | 2942 | /* Keep going . . . */ |
d3119d1e EZ |
2943 | |
2944 | /* | |
2945 | * Special symbol types for GNU | |
2946 | */ | |
2947 | case N_INDR: | |
2948 | case N_INDR | N_EXT: | |
2949 | case N_SETA: | |
2950 | case N_SETA | N_EXT: | |
2951 | case N_SETT: | |
2952 | case N_SETT | N_EXT: | |
2953 | case N_SETD: | |
2954 | case N_SETD | N_EXT: | |
2955 | case N_SETB: | |
2956 | case N_SETB | N_EXT: | |
2957 | case N_SETV: | |
2958 | continue; | |
2959 | ||
2960 | /* | |
2961 | * Debugger symbols | |
2962 | */ | |
2963 | ||
2964 | case N_SO: | |
2965 | { | |
2966 | CORE_ADDR valu; | |
2967 | static int prev_so_symnum = -10; | |
2968 | static int first_so_symnum; | |
0ba1096a | 2969 | const char *p; |
d3119d1e EZ |
2970 | int prev_textlow_not_set; |
2971 | ||
3e43a32a MS |
2972 | valu = sh.value + ANOFFSET (objfile->section_offsets, |
2973 | SECT_OFF_TEXT (objfile)); | |
d3119d1e EZ |
2974 | |
2975 | prev_textlow_not_set = textlow_not_set; | |
2976 | ||
3e43a32a | 2977 | /* A zero value is probably an indication for the |
025bb325 | 2978 | SunPRO 3.0 compiler. end_psymtab explicitly tests |
3e43a32a | 2979 | for zero, so don't relocate it. */ |
d3119d1e | 2980 | |
203c3895 | 2981 | if (sh.value == 0 |
5e2b427d | 2982 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
d3119d1e EZ |
2983 | { |
2984 | textlow_not_set = 1; | |
2985 | valu = 0; | |
2986 | } | |
2987 | else | |
2988 | textlow_not_set = 0; | |
203c3895 | 2989 | |
d3119d1e EZ |
2990 | past_first_source_file = 1; |
2991 | ||
2992 | if (prev_so_symnum != symnum - 1) | |
025bb325 | 2993 | { /* Here if prev stab wasn't N_SO. */ |
d3119d1e EZ |
2994 | first_so_symnum = symnum; |
2995 | ||
2996 | if (pst) | |
2997 | { | |
2998 | pst = (struct partial_symtab *) 0; | |
2999 | includes_used = 0; | |
3000 | dependencies_used = 0; | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | prev_so_symnum = symnum; | |
c906108c | 3005 | |
025bb325 MS |
3006 | /* End the current partial symtab and start a |
3007 | new one. */ | |
d3119d1e EZ |
3008 | |
3009 | /* SET_NAMESTRING ();*/ | |
3010 | namestring = stabstring; | |
3011 | ||
3e43a32a | 3012 | /* Null name means end of .o file. Don't start a new |
025bb325 | 3013 | one. */ |
d3119d1e EZ |
3014 | if (*namestring == '\000') |
3015 | continue; | |
3016 | ||
3e43a32a MS |
3017 | /* Some compilers (including gcc) emit a pair of |
3018 | initial N_SOs. The first one is a directory name; | |
3019 | the second the file name. If pst exists, is | |
3020 | empty, and has a filename ending in '/', we assume | |
025bb325 | 3021 | the previous N_SO was a directory name. */ |
0ba1096a KT |
3022 | p = lbasename (namestring); |
3023 | if (p != namestring && *p == '\000') | |
3e43a32a | 3024 | continue; /* Simply ignore directory |
025bb325 | 3025 | name SOs. */ |
d3119d1e | 3026 | |
3e43a32a MS |
3027 | /* Some other compilers (C++ ones in particular) emit |
3028 | useless SOs for non-existant .c files. We ignore | |
3029 | all subsequent SOs that immediately follow the | |
3030 | first. */ | |
d3119d1e EZ |
3031 | |
3032 | if (!pst) | |
3033 | pst = save_pst; | |
3034 | continue; | |
3035 | } | |
3036 | ||
3037 | case N_BINCL: | |
3038 | continue; | |
3039 | ||
3040 | case N_SOL: | |
3041 | { | |
3042 | enum language tmp_language; | |
b8d56208 | 3043 | |
025bb325 | 3044 | /* Mark down an include file in the current psymtab. */ |
d3119d1e | 3045 | |
025bb325 | 3046 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
3047 | namestring = stabstring; |
3048 | ||
3e43a32a MS |
3049 | tmp_language |
3050 | = deduce_language_from_filename (namestring); | |
d3119d1e | 3051 | |
3e43a32a MS |
3052 | /* Only change the psymtab's language if we've |
3053 | learned something useful (eg. tmp_language is not | |
3054 | language_unknown). In addition, to match what | |
3055 | start_subfile does, never change from C++ to | |
3056 | C. */ | |
d3119d1e EZ |
3057 | if (tmp_language != language_unknown |
3058 | && (tmp_language != language_c | |
3059 | || psymtab_language != language_cplus)) | |
3060 | psymtab_language = tmp_language; | |
3061 | ||
3e43a32a MS |
3062 | /* In C++, one may expect the same filename to come |
3063 | round many times, when code is coming alternately | |
3064 | from the main file and from inline functions in | |
025bb325 | 3065 | other files. So I check to see if this is a file |
3e43a32a MS |
3066 | we've seen before -- either the main source file, |
3067 | or a previously included file. | |
3068 | ||
3069 | This seems to be a lot of time to be spending on | |
3070 | N_SOL, but things like "break c-exp.y:435" need to | |
3071 | work (I suppose the psymtab_include_list could be | |
3072 | hashed or put in a binary tree, if profiling shows | |
3073 | this is a major hog). */ | |
0ba1096a | 3074 | if (pst && filename_cmp (namestring, pst->filename) == 0) |
d3119d1e | 3075 | continue; |
b8d56208 | 3076 | |
d3119d1e | 3077 | { |
aa1ee363 | 3078 | int i; |
b8d56208 | 3079 | |
d3119d1e | 3080 | for (i = 0; i < includes_used; i++) |
0ba1096a KT |
3081 | if (filename_cmp (namestring, |
3082 | psymtab_include_list[i]) == 0) | |
d3119d1e EZ |
3083 | { |
3084 | i = -1; | |
3085 | break; | |
3086 | } | |
3087 | if (i == -1) | |
3088 | continue; | |
3089 | } | |
3090 | ||
3091 | psymtab_include_list[includes_used++] = namestring; | |
3092 | if (includes_used >= includes_allocated) | |
3093 | { | |
3094 | char **orig = psymtab_include_list; | |
3095 | ||
3096 | psymtab_include_list = (char **) | |
3097 | alloca ((includes_allocated *= 2) * | |
3098 | sizeof (char *)); | |
4efb68b1 | 3099 | memcpy (psymtab_include_list, orig, |
d3119d1e EZ |
3100 | includes_used * sizeof (char *)); |
3101 | } | |
3102 | continue; | |
3103 | } | |
025bb325 | 3104 | case N_LSYM: /* Typedef or automatic variable. */ |
3e43a32a MS |
3105 | case N_STSYM: /* Data seg var -- static */ |
3106 | case N_LCSYM: /* BSS " */ | |
3107 | case N_ROSYM: /* Read-only data seg var -- static. */ | |
3108 | case N_NBSTS: /* Gould nobase. */ | |
3109 | case N_NBLCS: /* symbols. */ | |
d3119d1e | 3110 | case N_FUN: |
3e43a32a MS |
3111 | case N_GSYM: /* Global (extern) variable; can be |
3112 | data or bss (sigh FIXME). */ | |
d3119d1e EZ |
3113 | |
3114 | /* Following may probably be ignored; I'll leave them here | |
3115 | for now (until I do Pascal and Modula 2 extensions). */ | |
3116 | ||
3e43a32a MS |
3117 | case N_PC: /* I may or may not need this; I |
3118 | suspect not. */ | |
3119 | case N_M2C: /* I suspect that I can ignore this | |
025bb325 MS |
3120 | here. */ |
3121 | case N_SCOPE: /* Same. */ | |
d3119d1e | 3122 | |
025bb325 | 3123 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
3124 | namestring = stabstring; |
3125 | p = (char *) strchr (namestring, ':'); | |
3126 | if (!p) | |
025bb325 | 3127 | continue; /* Not a debugging symbol. */ |
d3119d1e EZ |
3128 | |
3129 | ||
3130 | ||
3131 | /* Main processing section for debugging symbols which | |
3e43a32a MS |
3132 | the initial read through the symbol tables needs to |
3133 | worry about. If we reach this point, the symbol | |
3134 | which we are considering is definitely one we are | |
3135 | interested in. p must also contain the (valid) | |
3136 | index into the namestring which indicates the | |
3137 | debugging type symbol. */ | |
d3119d1e EZ |
3138 | |
3139 | switch (p[1]) | |
3140 | { | |
3141 | case 'S': | |
3e43a32a MS |
3142 | sh.value += ANOFFSET (objfile->section_offsets, |
3143 | SECT_OFF_DATA (objfile)); | |
149ad273 | 3144 | |
5e2b427d | 3145 | if (gdbarch_static_transform_name_p (gdbarch)) |
149ad273 | 3146 | namestring = gdbarch_static_transform_name |
5e2b427d | 3147 | (gdbarch, namestring); |
149ad273 | 3148 | |
04a679b8 | 3149 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3150 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e EZ |
3151 | &objfile->static_psymbols, |
3152 | 0, sh.value, | |
3153 | psymtab_language, objfile); | |
3154 | continue; | |
3155 | case 'G': | |
3e43a32a MS |
3156 | sh.value += ANOFFSET (objfile->section_offsets, |
3157 | SECT_OFF_DATA (objfile)); | |
025bb325 MS |
3158 | /* The addresses in these entries are reported |
3159 | to be wrong. See the code that reads 'G's | |
3160 | for symtabs. */ | |
04a679b8 | 3161 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3162 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e EZ |
3163 | &objfile->global_psymbols, |
3164 | 0, sh.value, | |
3165 | psymtab_language, objfile); | |
3166 | continue; | |
3167 | ||
3168 | case 'T': | |
3169 | /* When a 'T' entry is defining an anonymous enum, it | |
3170 | may have a name which is the empty string, or a | |
3171 | single space. Since they're not really defining a | |
3172 | symbol, those shouldn't go in the partial symbol | |
3173 | table. We do pick up the elements of such enums at | |
3174 | 'check_enum:', below. */ | |
3175 | if (p >= namestring + 2 | |
3176 | || (p == namestring + 1 | |
3177 | && namestring[0] != ' ')) | |
3178 | { | |
04a679b8 | 3179 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3180 | STRUCT_DOMAIN, LOC_TYPEDEF, |
d3119d1e EZ |
3181 | &objfile->static_psymbols, |
3182 | sh.value, 0, | |
3183 | psymtab_language, objfile); | |
3184 | if (p[2] == 't') | |
3185 | { | |
3186 | /* Also a typedef with the same name. */ | |
3e43a32a MS |
3187 | add_psymbol_to_list (namestring, |
3188 | p - namestring, 1, | |
176620f1 | 3189 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e EZ |
3190 | &objfile->static_psymbols, |
3191 | sh.value, 0, | |
3e43a32a MS |
3192 | psymtab_language, |
3193 | objfile); | |
d3119d1e EZ |
3194 | p += 1; |
3195 | } | |
d3119d1e EZ |
3196 | } |
3197 | goto check_enum; | |
3198 | case 't': | |
3e43a32a | 3199 | if (p != namestring) /* a name is there, not |
025bb325 | 3200 | just :T... */ |
d3119d1e | 3201 | { |
04a679b8 | 3202 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3203 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e EZ |
3204 | &objfile->static_psymbols, |
3205 | sh.value, 0, | |
3206 | psymtab_language, objfile); | |
3207 | } | |
3208 | check_enum: | |
3e43a32a MS |
3209 | /* If this is an enumerated type, we need to add |
3210 | all the enum constants to the partial symbol | |
3211 | table. This does not cover enums without names, | |
025bb325 | 3212 | e.g. "enum {a, b} c;" in C, but fortunately |
3e43a32a MS |
3213 | those are rare. There is no way for GDB to find |
3214 | those from the enum type without spending too | |
3215 | much time on it. Thus to solve this problem, | |
3216 | the compiler needs to put out the enum in a | |
3217 | nameless type. GCC2 does this. */ | |
d3119d1e EZ |
3218 | |
3219 | /* We are looking for something of the form | |
3220 | <name> ":" ("t" | "T") [<number> "="] "e" | |
3221 | {<constant> ":" <value> ","} ";". */ | |
3222 | ||
3223 | /* Skip over the colon and the 't' or 'T'. */ | |
3224 | p += 2; | |
3e43a32a MS |
3225 | /* This type may be given a number. Also, numbers |
3226 | can come in pairs like (0,26). Skip over it. */ | |
d3119d1e EZ |
3227 | while ((*p >= '0' && *p <= '9') |
3228 | || *p == '(' || *p == ',' || *p == ')' | |
3229 | || *p == '=') | |
3230 | p++; | |
3231 | ||
3232 | if (*p++ == 'e') | |
3233 | { | |
3e43a32a MS |
3234 | /* The aix4 compiler emits extra crud before |
3235 | the members. */ | |
d3119d1e EZ |
3236 | if (*p == '-') |
3237 | { | |
3238 | /* Skip over the type (?). */ | |
3239 | while (*p != ':') | |
3240 | p++; | |
3241 | ||
3242 | /* Skip over the colon. */ | |
3243 | p++; | |
3244 | } | |
3245 | ||
3246 | /* We have found an enumerated type. */ | |
3247 | /* According to comments in read_enum_type | |
3248 | a comma could end it instead of a semicolon. | |
3249 | I don't know where that happens. | |
3250 | Accept either. */ | |
3251 | while (*p && *p != ';' && *p != ',') | |
3252 | { | |
3253 | char *q; | |
3254 | ||
3e43a32a MS |
3255 | /* Check for and handle cretinous dbx |
3256 | symbol name continuation! */ | |
d3119d1e EZ |
3257 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) |
3258 | p = next_symbol_text (objfile); | |
3259 | ||
3260 | /* Point to the character after the name | |
3261 | of the enum constant. */ | |
3262 | for (q = p; *q && *q != ':'; q++) | |
3263 | ; | |
3264 | /* Note that the value doesn't matter for | |
3e43a32a MS |
3265 | enum constants in psymtabs, just in |
3266 | symtabs. */ | |
04a679b8 | 3267 | add_psymbol_to_list (p, q - p, 1, |
176620f1 | 3268 | VAR_DOMAIN, LOC_CONST, |
3e43a32a MS |
3269 | &objfile->static_psymbols, |
3270 | 0, 0, psymtab_language, | |
3271 | objfile); | |
d3119d1e EZ |
3272 | /* Point past the name. */ |
3273 | p = q; | |
3274 | /* Skip over the value. */ | |
3275 | while (*p && *p != ',') | |
3276 | p++; | |
3277 | /* Advance past the comma. */ | |
3278 | if (*p) | |
3279 | p++; | |
3280 | } | |
3281 | } | |
3282 | continue; | |
3283 | case 'c': | |
3284 | /* Constant, e.g. from "const" in Pascal. */ | |
04a679b8 | 3285 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3286 | VAR_DOMAIN, LOC_CONST, |
3e43a32a MS |
3287 | &objfile->static_psymbols, |
3288 | sh.value, 0, psymtab_language, | |
3289 | objfile); | |
d3119d1e EZ |
3290 | continue; |
3291 | ||
3292 | case 'f': | |
3293 | if (! pst) | |
3294 | { | |
3295 | int name_len = p - namestring; | |
3296 | char *name = xmalloc (name_len + 1); | |
b8d56208 | 3297 | |
d3119d1e EZ |
3298 | memcpy (name, namestring, name_len); |
3299 | name[name_len] = '\0'; | |
23136709 | 3300 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3301 | xfree (name); |
3302 | } | |
3e43a32a MS |
3303 | sh.value += ANOFFSET (objfile->section_offsets, |
3304 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3305 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3306 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e EZ |
3307 | &objfile->static_psymbols, |
3308 | 0, sh.value, | |
3309 | psymtab_language, objfile); | |
3310 | continue; | |
3311 | ||
3312 | /* Global functions were ignored here, but now they | |
3e43a32a MS |
3313 | are put into the global psymtab like one would |
3314 | expect. They're also in the minimal symbol | |
3315 | table. */ | |
d3119d1e EZ |
3316 | case 'F': |
3317 | if (! pst) | |
3318 | { | |
3319 | int name_len = p - namestring; | |
3320 | char *name = xmalloc (name_len + 1); | |
b8d56208 | 3321 | |
d3119d1e EZ |
3322 | memcpy (name, namestring, name_len); |
3323 | name[name_len] = '\0'; | |
23136709 | 3324 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3325 | xfree (name); |
3326 | } | |
3e43a32a MS |
3327 | sh.value += ANOFFSET (objfile->section_offsets, |
3328 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3329 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3330 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e EZ |
3331 | &objfile->global_psymbols, |
3332 | 0, sh.value, | |
3333 | psymtab_language, objfile); | |
3334 | continue; | |
3335 | ||
3e43a32a MS |
3336 | /* Two things show up here (hopefully); static |
3337 | symbols of local scope (static used inside | |
3338 | braces) or extensions of structure symbols. We | |
3339 | can ignore both. */ | |
d3119d1e EZ |
3340 | case 'V': |
3341 | case '(': | |
3342 | case '0': | |
3343 | case '1': | |
3344 | case '2': | |
3345 | case '3': | |
3346 | case '4': | |
3347 | case '5': | |
3348 | case '6': | |
3349 | case '7': | |
3350 | case '8': | |
3351 | case '9': | |
3352 | case '-': | |
3e43a32a MS |
3353 | case '#': /* For symbol identification (used |
3354 | in live ranges). */ | |
d3119d1e EZ |
3355 | continue; |
3356 | ||
3357 | case ':': | |
3e43a32a MS |
3358 | /* It is a C++ nested symbol. We don't need to |
3359 | record it (I don't think); if we try to look up | |
3360 | foo::bar::baz, then symbols for the symtab | |
3361 | containing foo should get read in, I think. */ | |
d3119d1e EZ |
3362 | /* Someone says sun cc puts out symbols like |
3363 | /foo/baz/maclib::/usr/local/bin/maclib, | |
3364 | which would get here with a symbol type of ':'. */ | |
3365 | continue; | |
3366 | ||
3367 | default: | |
3e43a32a MS |
3368 | /* Unexpected symbol descriptor. The second and |
3369 | subsequent stabs of a continued stab can show up | |
3370 | here. The question is whether they ever can | |
3371 | mimic a normal stab--it would be nice if not, | |
3372 | since we certainly don't want to spend the time | |
3373 | searching to the end of every string looking for | |
d3119d1e EZ |
3374 | a backslash. */ |
3375 | ||
23136709 | 3376 | complaint (&symfile_complaints, |
e2e0b3e5 | 3377 | _("unknown symbol descriptor `%c'"), p[1]); |
d3119d1e EZ |
3378 | |
3379 | /* Ignore it; perhaps it is an extension that we don't | |
3380 | know about. */ | |
3381 | continue; | |
3382 | } | |
3383 | ||
3384 | case N_EXCL: | |
3385 | continue; | |
3386 | ||
3387 | case N_ENDM: | |
5afc051b JB |
3388 | /* Solaris 2 end of module, finish current partial |
3389 | symbol table. END_PSYMTAB will set | |
3390 | pst->texthigh to the proper value, which is | |
3391 | necessary if a module compiled without | |
3392 | debugging info follows this module. */ | |
203c3895 | 3393 | if (pst |
5e2b427d | 3394 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
d3119d1e EZ |
3395 | { |
3396 | pst = (struct partial_symtab *) 0; | |
3397 | includes_used = 0; | |
3398 | dependencies_used = 0; | |
3399 | } | |
d3119d1e EZ |
3400 | continue; |
3401 | ||
3402 | case N_RBRAC: | |
5afc051b JB |
3403 | if (sh.value > save_pst->texthigh) |
3404 | save_pst->texthigh = sh.value; | |
d3119d1e EZ |
3405 | continue; |
3406 | case N_EINCL: | |
3407 | case N_DSLINE: | |
3408 | case N_BSLINE: | |
3e43a32a MS |
3409 | case N_SSYM: /* Claim: Structure or union |
3410 | element. Hopefully, I can | |
3411 | ignore this. */ | |
3412 | case N_ENTRY: /* Alternate entry point; can | |
025bb325 | 3413 | ignore. */ |
3e43a32a | 3414 | case N_MAIN: /* Can definitely ignore this. */ |
025bb325 MS |
3415 | case N_CATCH: /* These are GNU C++ extensions. */ |
3416 | case N_EHDECL: /* that can safely be ignored here. */ | |
d3119d1e EZ |
3417 | case N_LENG: |
3418 | case N_BCOMM: | |
3419 | case N_ECOMM: | |
3420 | case N_ECOML: | |
3421 | case N_FNAME: | |
3422 | case N_SLINE: | |
3423 | case N_RSYM: | |
3424 | case N_PSYM: | |
3425 | case N_LBRAC: | |
3426 | case N_NSYMS: /* Ultrix 4.0: symbol count */ | |
3427 | case N_DEFD: /* GNU Modula-2 */ | |
3e43a32a MS |
3428 | case N_ALIAS: /* SunPro F77: alias name, ignore |
3429 | for now. */ | |
d3119d1e | 3430 | |
025bb325 | 3431 | case N_OBJ: /* Useless types from Solaris. */ |
d3119d1e | 3432 | case N_OPT: |
3e43a32a | 3433 | /* These symbols aren't interesting; don't worry about |
025bb325 | 3434 | them. */ |
d3119d1e EZ |
3435 | |
3436 | continue; | |
3437 | ||
3438 | default: | |
3e43a32a MS |
3439 | /* If we haven't found it yet, ignore it. It's |
3440 | probably some new type we don't know about yet. */ | |
3441 | complaint (&symfile_complaints, | |
3442 | _("unknown symbol type %s"), | |
025bb325 | 3443 | hex_string (type_code)); /* CUR_SYMBOL_TYPE */ |
d3119d1e EZ |
3444 | continue; |
3445 | } | |
c5aa993b | 3446 | if (stabstring |
c906108c | 3447 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
b8c9b27d | 3448 | xfree (stabstring); |
c906108c | 3449 | } |
c5aa993b | 3450 | /* end - Handle continuation */ |
c906108c SS |
3451 | } |
3452 | } | |
3453 | else | |
3454 | { | |
3455 | for (cur_sdx = 0; cur_sdx < fh->csym;) | |
3456 | { | |
3457 | char *name; | |
3458 | enum address_class class; | |
3459 | ||
3460 | (*swap_sym_in) (cur_bfd, | |
3461 | ((char *) debug_info->external_sym | |
3462 | + ((fh->isymBase + cur_sdx) | |
3463 | * external_sym_size)), | |
3464 | &sh); | |
3465 | ||
3466 | if (ECOFF_IS_STAB (&sh)) | |
3467 | { | |
3468 | cur_sdx++; | |
3469 | continue; | |
3470 | } | |
3471 | ||
3472 | /* Non absolute static symbols go into the minimal table. */ | |
c5aa993b | 3473 | if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil |
c906108c SS |
3474 | || (sh.index == indexNil |
3475 | && (sh.st != stStatic || sh.sc == scAbs))) | |
3476 | { | |
025bb325 | 3477 | /* FIXME, premature? */ |
c906108c SS |
3478 | cur_sdx++; |
3479 | continue; | |
3480 | } | |
3481 | ||
3482 | name = debug_info->ss + fh->issBase + sh.iss; | |
3483 | ||
3484 | switch (sh.sc) | |
3485 | { | |
3486 | case scText: | |
3487 | case scRConst: | |
3488 | /* The value of a stEnd symbol is the displacement from the | |
3489 | corresponding start symbol value, do not relocate it. */ | |
3490 | if (sh.st != stEnd) | |
3e43a32a MS |
3491 | sh.value += ANOFFSET (objfile->section_offsets, |
3492 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3493 | break; |
3494 | case scData: | |
3495 | case scSData: | |
3496 | case scRData: | |
3497 | case scPData: | |
3498 | case scXData: | |
3e43a32a MS |
3499 | sh.value += ANOFFSET (objfile->section_offsets, |
3500 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3501 | break; |
3502 | case scBss: | |
3503 | case scSBss: | |
3e43a32a MS |
3504 | sh.value += ANOFFSET (objfile->section_offsets, |
3505 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3506 | break; |
3507 | } | |
3508 | ||
3509 | switch (sh.st) | |
3510 | { | |
3511 | CORE_ADDR high; | |
3512 | CORE_ADDR procaddr; | |
3513 | int new_sdx; | |
3514 | ||
3515 | case stStaticProc: | |
3516 | prim_record_minimal_symbol_and_info (name, sh.value, | |
b887350f | 3517 | mst_file_text, |
3e43a32a MS |
3518 | SECT_OFF_TEXT (objfile), |
3519 | NULL, objfile); | |
c906108c SS |
3520 | |
3521 | /* FALLTHROUGH */ | |
3522 | ||
3523 | case stProc: | |
1fb4c65b JB |
3524 | /* Ignore all parameter symbol records. */ |
3525 | if (sh.index >= hdr->iauxMax) | |
3526 | { | |
3527 | /* Should not happen, but does when cross-compiling | |
3528 | with the MIPS compiler. FIXME -- pull later. */ | |
3529 | index_complaint (name); | |
025bb325 | 3530 | new_sdx = cur_sdx + 1; /* Don't skip at all. */ |
1fb4c65b JB |
3531 | } |
3532 | else | |
3533 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
3534 | (debug_info->external_aux | |
3535 | + fh->iauxBase | |
3536 | + sh.index)); | |
3537 | ||
3538 | if (new_sdx <= cur_sdx) | |
3539 | { | |
3540 | /* This should not happen either... FIXME. */ | |
3541 | complaint (&symfile_complaints, | |
e2e0b3e5 | 3542 | _("bad proc end in aux found from symbol %s"), |
1fb4c65b | 3543 | name); |
025bb325 | 3544 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
1fb4c65b JB |
3545 | } |
3546 | ||
3547 | /* For stProc symbol records, we need to check the | |
3548 | storage class as well, as only (stProc, scText) | |
3549 | entries represent "real" procedures - See the | |
3550 | Compaq document titled "Object File / Symbol Table | |
3551 | Format Specification" for more information. If the | |
3552 | storage class is not scText, we discard the whole | |
3553 | block of symbol records for this stProc. */ | |
3554 | if (sh.st == stProc && sh.sc != scText) | |
3555 | goto skip; | |
3556 | ||
c906108c | 3557 | /* Usually there is a local and a global stProc symbol |
025bb325 | 3558 | for a function. This means that the function name |
c906108c SS |
3559 | has already been entered into the mimimal symbol table |
3560 | while processing the global symbols in pass 2 above. | |
3561 | One notable exception is the PROGRAM name from | |
3562 | f77 compiled executables, it is only put out as | |
3563 | local stProc symbol, and a global MAIN__ stProc symbol | |
3564 | points to it. It doesn't matter though, as gdb is | |
3565 | still able to find the PROGRAM name via the partial | |
3566 | symbol table, and the MAIN__ symbol via the minimal | |
3567 | symbol table. */ | |
3568 | if (sh.st == stProc) | |
04a679b8 | 3569 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3570 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3571 | &objfile->global_psymbols, |
c5aa993b | 3572 | 0, sh.value, psymtab_language, objfile); |
c906108c | 3573 | else |
04a679b8 | 3574 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3575 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3576 | &objfile->static_psymbols, |
c5aa993b | 3577 | 0, sh.value, psymtab_language, objfile); |
c906108c | 3578 | |
c906108c SS |
3579 | procaddr = sh.value; |
3580 | ||
c906108c SS |
3581 | cur_sdx = new_sdx; |
3582 | (*swap_sym_in) (cur_bfd, | |
3583 | ((char *) debug_info->external_sym | |
3584 | + ((fh->isymBase + cur_sdx - 1) | |
3585 | * external_sym_size)), | |
3586 | &sh); | |
3587 | if (sh.st != stEnd) | |
3588 | continue; | |
3589 | ||
3590 | /* Kludge for Irix 5.2 zero fh->adr. */ | |
3591 | if (!relocatable | |
5afc051b JB |
3592 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
3593 | pst->textlow = procaddr; | |
c906108c SS |
3594 | |
3595 | high = procaddr + sh.value; | |
5afc051b JB |
3596 | if (high > pst->texthigh) |
3597 | pst->texthigh = high; | |
c906108c SS |
3598 | continue; |
3599 | ||
3600 | case stStatic: /* Variable */ | |
c5aa993b | 3601 | if (SC_IS_DATA (sh.sc)) |
c906108c | 3602 | prim_record_minimal_symbol_and_info (name, sh.value, |
b887350f | 3603 | mst_file_data, |
b8fbeb18 | 3604 | SECT_OFF_DATA (objfile), |
c906108c SS |
3605 | NULL, |
3606 | objfile); | |
3607 | else | |
3608 | prim_record_minimal_symbol_and_info (name, sh.value, | |
b887350f | 3609 | mst_file_bss, |
b8fbeb18 | 3610 | SECT_OFF_BSS (objfile), |
c906108c SS |
3611 | NULL, |
3612 | objfile); | |
3613 | class = LOC_STATIC; | |
3614 | break; | |
3615 | ||
c5aa993b | 3616 | case stIndirect: /* Irix5 forward declaration */ |
025bb325 | 3617 | /* Skip forward declarations from Irix5 cc. */ |
c906108c SS |
3618 | goto skip; |
3619 | ||
c5aa993b | 3620 | case stTypedef: /* Typedef */ |
c906108c SS |
3621 | /* Skip typedefs for forward declarations and opaque |
3622 | structs from alpha and mips cc. */ | |
3623 | if (sh.iss == 0 || has_opaque_xref (fh, &sh)) | |
3624 | goto skip; | |
3625 | class = LOC_TYPEDEF; | |
3626 | break; | |
3627 | ||
3628 | case stConstant: /* Constant decl */ | |
3629 | class = LOC_CONST; | |
3630 | break; | |
3631 | ||
3632 | case stUnion: | |
3633 | case stStruct: | |
3634 | case stEnum: | |
c5aa993b | 3635 | case stBlock: /* { }, str, un, enum */ |
c906108c | 3636 | /* Do not create a partial symbol for cc unnamed aggregates |
025bb325 | 3637 | and gcc empty aggregates. */ |
c906108c | 3638 | if ((sh.sc == scInfo |
c5aa993b | 3639 | || SC_IS_COMMON (sh.sc)) |
c906108c SS |
3640 | && sh.iss != 0 |
3641 | && sh.index != cur_sdx + 2) | |
3642 | { | |
04a679b8 | 3643 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3644 | STRUCT_DOMAIN, LOC_TYPEDEF, |
c906108c SS |
3645 | &objfile->static_psymbols, |
3646 | 0, (CORE_ADDR) 0, | |
3647 | psymtab_language, objfile); | |
3648 | } | |
3649 | handle_psymbol_enumerators (objfile, fh, sh.st, sh.value); | |
3650 | ||
025bb325 | 3651 | /* Skip over the block. */ |
c906108c SS |
3652 | new_sdx = sh.index; |
3653 | if (new_sdx <= cur_sdx) | |
3654 | { | |
025bb325 | 3655 | /* This happens with the Ultrix kernel. */ |
23136709 | 3656 | complaint (&symfile_complaints, |
e2e0b3e5 | 3657 | _("bad aux index at block symbol %s"), name); |
025bb325 | 3658 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
c906108c SS |
3659 | } |
3660 | cur_sdx = new_sdx; | |
3661 | continue; | |
3662 | ||
3663 | case stFile: /* File headers */ | |
3664 | case stLabel: /* Labels */ | |
3665 | case stEnd: /* Ends of files */ | |
3666 | goto skip; | |
3667 | ||
3668 | case stLocal: /* Local variables */ | |
3669 | /* Normally these are skipped because we skip over | |
3670 | all blocks we see. However, these can occur | |
025bb325 | 3671 | as visible symbols in a .h file that contains code. */ |
c906108c SS |
3672 | goto skip; |
3673 | ||
3674 | default: | |
3675 | /* Both complaints are valid: one gives symbol name, | |
3676 | the other the offending symbol type. */ | |
e2e0b3e5 | 3677 | complaint (&symfile_complaints, _("unknown local symbol %s"), |
23136709 | 3678 | name); |
e2e0b3e5 | 3679 | complaint (&symfile_complaints, _("with type %d"), sh.st); |
c906108c SS |
3680 | cur_sdx++; |
3681 | continue; | |
3682 | } | |
025bb325 | 3683 | /* Use this gdb symbol. */ |
04a679b8 | 3684 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3685 | VAR_DOMAIN, class, |
c906108c SS |
3686 | &objfile->static_psymbols, |
3687 | 0, sh.value, psymtab_language, objfile); | |
3688 | skip: | |
025bb325 | 3689 | cur_sdx++; /* Go to next file symbol. */ |
c906108c SS |
3690 | } |
3691 | ||
025bb325 | 3692 | /* Now do enter the external symbols. */ |
c906108c SS |
3693 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; |
3694 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
3695 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
3696 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
3697 | for (; --cur_sdx >= 0; ext_ptr++) | |
3698 | { | |
3699 | enum address_class class; | |
3700 | SYMR *psh; | |
3701 | char *name; | |
3702 | CORE_ADDR svalue; | |
3703 | ||
3704 | if (ext_ptr->ifd != f_idx) | |
3e43a32a MS |
3705 | internal_error (__FILE__, __LINE__, |
3706 | _("failed internal consistency check")); | |
c906108c SS |
3707 | psh = &ext_ptr->asym; |
3708 | ||
3709 | /* Do not add undefined symbols to the partial symbol table. */ | |
c5aa993b | 3710 | if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil) |
c906108c SS |
3711 | continue; |
3712 | ||
3713 | svalue = psh->value; | |
3714 | switch (psh->sc) | |
3715 | { | |
3716 | case scText: | |
3717 | case scRConst: | |
3e43a32a MS |
3718 | svalue += ANOFFSET (objfile->section_offsets, |
3719 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3720 | break; |
3721 | case scData: | |
3722 | case scSData: | |
3723 | case scRData: | |
3724 | case scPData: | |
3725 | case scXData: | |
3e43a32a MS |
3726 | svalue += ANOFFSET (objfile->section_offsets, |
3727 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3728 | break; |
3729 | case scBss: | |
3730 | case scSBss: | |
3e43a32a MS |
3731 | svalue += ANOFFSET (objfile->section_offsets, |
3732 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3733 | break; |
3734 | } | |
3735 | ||
3736 | switch (psh->st) | |
3737 | { | |
3738 | case stNil: | |
3739 | /* These are generated for static symbols in .o files, | |
3740 | ignore them. */ | |
3741 | continue; | |
3742 | case stProc: | |
3743 | case stStaticProc: | |
3744 | /* External procedure symbols have been entered | |
3745 | into the minimal symbol table in pass 2 above. | |
3746 | Ignore them, as parse_external will ignore them too. */ | |
3747 | continue; | |
3748 | case stLabel: | |
3749 | class = LOC_LABEL; | |
3750 | break; | |
3751 | default: | |
23136709 | 3752 | unknown_ext_complaint (debug_info->ssext + psh->iss); |
c906108c SS |
3753 | /* Fall through, pretend it's global. */ |
3754 | case stGlobal: | |
3755 | /* Global common symbols are resolved by the runtime loader, | |
3756 | ignore them. */ | |
c5aa993b | 3757 | if (SC_IS_COMMON (psh->sc)) |
c906108c SS |
3758 | continue; |
3759 | ||
3760 | class = LOC_STATIC; | |
3761 | break; | |
3762 | } | |
3763 | name = debug_info->ssext + psh->iss; | |
04a679b8 | 3764 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3765 | VAR_DOMAIN, class, |
c906108c SS |
3766 | &objfile->global_psymbols, |
3767 | 0, svalue, | |
3768 | psymtab_language, objfile); | |
3769 | } | |
3770 | } | |
3771 | ||
025bb325 | 3772 | /* Link pst to FDR. end_psymtab returns NULL if the psymtab was |
c5aa993b | 3773 | empty and put on the free list. */ |
c906108c | 3774 | fdr_to_pst[f_idx].pst = end_psymtab (save_pst, |
c5aa993b | 3775 | psymtab_include_list, includes_used, |
5afc051b | 3776 | -1, save_pst->texthigh, |
c5aa993b | 3777 | dependency_list, dependencies_used, textlow_not_set); |
c906108c SS |
3778 | includes_used = 0; |
3779 | dependencies_used = 0; | |
3780 | ||
c906108c | 3781 | /* The objfile has its functions reordered if this partial symbol |
c5aa993b JM |
3782 | table overlaps any other partial symbol table. |
3783 | We cannot assume a reordered objfile if a partial symbol table | |
3784 | is contained within another partial symbol table, as partial symbol | |
3785 | tables for include files with executable code are contained | |
3786 | within the partial symbol table for the including source file, | |
3787 | and we do not want to flag the objfile reordered for these cases. | |
3788 | ||
3789 | This strategy works well for Irix-5.2 shared libraries, but we | |
3790 | might have to use a more elaborate (and slower) algorithm for | |
3791 | other cases. */ | |
c906108c SS |
3792 | save_pst = fdr_to_pst[f_idx].pst; |
3793 | if (save_pst != NULL | |
5afc051b | 3794 | && save_pst->textlow != 0 |
c906108c SS |
3795 | && !(objfile->flags & OBJF_REORDERED)) |
3796 | { | |
3797 | ALL_OBJFILE_PSYMTABS (objfile, pst) | |
c5aa993b JM |
3798 | { |
3799 | if (save_pst != pst | |
5afc051b JB |
3800 | && save_pst->textlow >= pst->textlow |
3801 | && save_pst->textlow < pst->texthigh | |
3802 | && save_pst->texthigh > pst->texthigh) | |
c5aa993b JM |
3803 | { |
3804 | objfile->flags |= OBJF_REORDERED; | |
3805 | break; | |
3806 | } | |
3807 | } | |
c906108c SS |
3808 | } |
3809 | } | |
3810 | ||
025bb325 | 3811 | /* Now scan the FDRs for dependencies. */ |
c906108c SS |
3812 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
3813 | { | |
3814 | fh = f_idx + debug_info->fdr; | |
3815 | pst = fdr_to_pst[f_idx].pst; | |
3816 | ||
c5aa993b | 3817 | if (pst == (struct partial_symtab *) NULL) |
c906108c SS |
3818 | continue; |
3819 | ||
025bb325 | 3820 | /* This should catch stabs-in-ecoff. */ |
c906108c SS |
3821 | if (fh->crfd <= 1) |
3822 | continue; | |
3823 | ||
3e43a32a MS |
3824 | /* Skip the first file indirect entry as it is a self dependency for |
3825 | source files or a reverse .h -> .c dependency for header files. */ | |
c906108c SS |
3826 | pst->number_of_dependencies = 0; |
3827 | pst->dependencies = | |
3828 | ((struct partial_symtab **) | |
8b92e4d5 | 3829 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
3830 | ((fh->crfd - 1) |
3831 | * sizeof (struct partial_symtab *)))); | |
3832 | for (s_idx = 1; s_idx < fh->crfd; s_idx++) | |
3833 | { | |
3834 | RFDT rh; | |
3835 | ||
3836 | (*swap_rfd_in) (cur_bfd, | |
3837 | ((char *) debug_info->external_rfd | |
3838 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
3839 | &rh); | |
3840 | if (rh < 0 || rh >= hdr->ifdMax) | |
3841 | { | |
e2e0b3e5 | 3842 | complaint (&symfile_complaints, _("bad file number %ld"), rh); |
c906108c SS |
3843 | continue; |
3844 | } | |
3845 | ||
3846 | /* Skip self dependencies of header files. */ | |
3847 | if (rh == f_idx) | |
3848 | continue; | |
3849 | ||
3850 | /* Do not add to dependeny list if psymtab was empty. */ | |
c5aa993b | 3851 | if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL) |
c906108c | 3852 | continue; |
3e43a32a MS |
3853 | pst->dependencies[pst->number_of_dependencies++] |
3854 | = fdr_to_pst[rh].pst; | |
c906108c SS |
3855 | } |
3856 | } | |
3857 | ||
3858 | /* Remove the dummy psymtab created for -O3 images above, if it is | |
3859 | still empty, to enable the detection of stripped executables. */ | |
3860 | if (objfile->psymtabs->next == NULL | |
3861 | && objfile->psymtabs->number_of_dependencies == 0 | |
3862 | && objfile->psymtabs->n_global_syms == 0 | |
3863 | && objfile->psymtabs->n_static_syms == 0) | |
3864 | objfile->psymtabs = NULL; | |
3865 | do_cleanups (old_chain); | |
3866 | } | |
3867 | ||
3868 | /* If the current psymbol has an enumerated type, we need to add | |
b021a221 | 3869 | all the enum constants to the partial symbol table. */ |
c906108c SS |
3870 | |
3871 | static void | |
fba45db2 KB |
3872 | handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype, |
3873 | CORE_ADDR svalue) | |
c906108c SS |
3874 | { |
3875 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; | |
12b9c64f | 3876 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
c906108c | 3877 | char *ext_sym = ((char *) debug_info->external_sym |
c5aa993b | 3878 | + ((fh->isymBase + cur_sdx + 1) * external_sym_size)); |
c906108c SS |
3879 | SYMR sh; |
3880 | TIR tir; | |
3881 | ||
3882 | switch (stype) | |
3883 | { | |
3884 | case stEnum: | |
3885 | break; | |
3886 | ||
3887 | case stBlock: | |
3888 | /* It is an enumerated type if the next symbol entry is a stMember | |
c5aa993b JM |
3889 | and its auxiliary index is indexNil or its auxiliary entry |
3890 | is a plain btNil or btVoid. | |
3891 | Alpha cc -migrate enums are recognized by a zero index and | |
3892 | a zero symbol value. | |
3893 | DU 4.0 cc enums are recognized by a member type of btEnum without | |
3894 | qualifiers and a zero symbol value. */ | |
c906108c SS |
3895 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); |
3896 | if (sh.st != stMember) | |
3897 | return; | |
3898 | ||
3899 | if (sh.index == indexNil | |
3900 | || (sh.index == 0 && svalue == 0)) | |
3901 | break; | |
3902 | (*debug_swap->swap_tir_in) (fh->fBigendian, | |
3903 | &(debug_info->external_aux | |
3904 | + fh->iauxBase + sh.index)->a_ti, | |
3905 | &tir); | |
3906 | if ((tir.bt != btNil | |
3907 | && tir.bt != btVoid | |
3908 | && (tir.bt != btEnum || svalue != 0)) | |
3909 | || tir.tq0 != tqNil) | |
3910 | return; | |
3911 | break; | |
3912 | ||
3913 | default: | |
3914 | return; | |
3915 | } | |
3916 | ||
3917 | for (;;) | |
3918 | { | |
3919 | char *name; | |
3920 | ||
3921 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); | |
3922 | if (sh.st != stMember) | |
3923 | break; | |
3924 | name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
3925 | ||
3926 | /* Note that the value doesn't matter for enum constants | |
c5aa993b | 3927 | in psymtabs, just in symtabs. */ |
04a679b8 | 3928 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3929 | VAR_DOMAIN, LOC_CONST, |
c906108c SS |
3930 | &objfile->static_psymbols, 0, |
3931 | (CORE_ADDR) 0, psymtab_language, objfile); | |
3932 | ext_sym += external_sym_size; | |
3933 | } | |
3934 | } | |
3935 | ||
025bb325 | 3936 | /* Get the next symbol. OBJFILE is unused. */ |
0e7e8d51 | 3937 | |
c906108c | 3938 | static char * |
0e7e8d51 | 3939 | mdebug_next_symbol_text (struct objfile *objfile) |
c906108c SS |
3940 | { |
3941 | SYMR sh; | |
3942 | ||
3943 | cur_sdx++; | |
3944 | (*debug_swap->swap_sym_in) (cur_bfd, | |
3945 | ((char *) debug_info->external_sym | |
3946 | + ((cur_fdr->isymBase + cur_sdx) | |
3947 | * debug_swap->external_sym_size)), | |
3948 | &sh); | |
3949 | return debug_info->ss + cur_fdr->issBase + sh.iss; | |
3950 | } | |
3951 | ||
3952 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
3953 | for turning the partial symtab PST into a symtab, recurring | |
3954 | first on all dependent psymtabs. The argument FILENAME is | |
3955 | only passed so we can see in debug stack traces what file | |
3956 | is being read. | |
3957 | ||
3958 | This function has a split personality, based on whether the | |
3959 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
3960 | The flow of control and even the memory allocation differs. FIXME. */ | |
3961 | ||
3962 | static void | |
72b9f47f | 3963 | psymtab_to_symtab_1 (struct partial_symtab *pst, const char *filename) |
c906108c SS |
3964 | { |
3965 | bfd_size_type external_sym_size; | |
3966 | bfd_size_type external_pdr_size; | |
12b9c64f AO |
3967 | void (*swap_sym_in) (bfd *, void *, SYMR *); |
3968 | void (*swap_pdr_in) (bfd *, void *, PDR *); | |
c906108c | 3969 | int i; |
16db6055 | 3970 | struct symtab *st = NULL; |
c906108c SS |
3971 | FDR *fh; |
3972 | struct linetable *lines; | |
3973 | CORE_ADDR lowest_pdr_addr = 0; | |
16db6055 | 3974 | int last_symtab_ended = 0; |
c906108c SS |
3975 | |
3976 | if (pst->readin) | |
3977 | return; | |
3978 | pst->readin = 1; | |
3979 | ||
3980 | /* Read in all partial symbtabs on which this one is dependent. | |
3981 | NOTE that we do have circular dependencies, sigh. We solved | |
3982 | that by setting pst->readin before this point. */ | |
3983 | ||
3984 | for (i = 0; i < pst->number_of_dependencies; i++) | |
3985 | if (!pst->dependencies[i]->readin) | |
3986 | { | |
3987 | /* Inform about additional files to be read in. */ | |
3988 | if (info_verbose) | |
3989 | { | |
3990 | fputs_filtered (" ", gdb_stdout); | |
3991 | wrap_here (""); | |
3992 | fputs_filtered ("and ", gdb_stdout); | |
3993 | wrap_here (""); | |
3994 | printf_filtered ("%s...", | |
3995 | pst->dependencies[i]->filename); | |
3996 | wrap_here (""); /* Flush output */ | |
3997 | gdb_flush (gdb_stdout); | |
3998 | } | |
025bb325 | 3999 | /* We only pass the filename for debug purposes. */ |
c906108c SS |
4000 | psymtab_to_symtab_1 (pst->dependencies[i], |
4001 | pst->dependencies[i]->filename); | |
4002 | } | |
4003 | ||
4004 | /* Do nothing if this is a dummy psymtab. */ | |
4005 | ||
4006 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
5afc051b | 4007 | && pst->textlow == 0 && pst->texthigh == 0) |
c906108c SS |
4008 | return; |
4009 | ||
025bb325 | 4010 | /* Now read the symbols for this symtab. */ |
c906108c SS |
4011 | |
4012 | cur_bfd = CUR_BFD (pst); | |
4013 | debug_swap = DEBUG_SWAP (pst); | |
4014 | debug_info = DEBUG_INFO (pst); | |
4015 | pending_list = PENDING_LIST (pst); | |
4016 | external_sym_size = debug_swap->external_sym_size; | |
4017 | external_pdr_size = debug_swap->external_pdr_size; | |
4018 | swap_sym_in = debug_swap->swap_sym_in; | |
4019 | swap_pdr_in = debug_swap->swap_pdr_in; | |
dd707e8e | 4020 | mdebugread_objfile = pst->objfile; |
c906108c SS |
4021 | cur_fd = FDR_IDX (pst); |
4022 | fh = ((cur_fd == -1) | |
4023 | ? (FDR *) NULL | |
4024 | : debug_info->fdr + cur_fd); | |
4025 | cur_fdr = fh; | |
4026 | ||
025bb325 | 4027 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
c906108c SS |
4028 | processing_gcc_compilation = 0; |
4029 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
4030 | { | |
4031 | SYMR sh; | |
4032 | ||
4033 | (*swap_sym_in) (cur_bfd, | |
4034 | ((char *) debug_info->external_sym | |
4035 | + (fh->isymBase + 1) * external_sym_size), | |
4036 | &sh); | |
ee300cd4 AC |
4037 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
4038 | stabs_symbol) == 0) | |
c906108c SS |
4039 | { |
4040 | /* We indicate that this is a GCC compilation so that certain | |
4041 | features will be enabled in stabsread/dbxread. */ | |
4042 | processing_gcc_compilation = 2; | |
4043 | } | |
4044 | } | |
4045 | ||
4046 | if (processing_gcc_compilation != 0) | |
4047 | { | |
fbf65064 | 4048 | struct gdbarch *gdbarch = get_objfile_arch (pst->objfile); |
c906108c SS |
4049 | |
4050 | /* This symbol table contains stabs-in-ecoff entries. */ | |
4051 | ||
025bb325 | 4052 | /* Parse local symbols first. */ |
c906108c | 4053 | |
025bb325 | 4054 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr. */ |
c906108c | 4055 | { |
dd707e8e | 4056 | mdebugread_objfile = NULL; |
c906108c SS |
4057 | return; |
4058 | } | |
4059 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
4060 | { | |
4061 | SYMR sh; | |
4062 | char *name; | |
4063 | CORE_ADDR valu; | |
4064 | ||
4065 | (*swap_sym_in) (cur_bfd, | |
4066 | (((char *) debug_info->external_sym) | |
4067 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
4068 | &sh); | |
4069 | name = debug_info->ss + fh->issBase + sh.iss; | |
4070 | valu = sh.value; | |
4071 | /* XXX This is a hack. It will go away! */ | |
4072 | if (ECOFF_IS_STAB (&sh) || (name[0] == '#')) | |
4073 | { | |
4074 | int type_code = ECOFF_UNMARK_STAB (sh.index); | |
4075 | ||
4076 | /* We should never get non N_STAB symbols here, but they | |
c5aa993b JM |
4077 | should be harmless, so keep process_one_symbol from |
4078 | complaining about them. */ | |
c906108c SS |
4079 | if (type_code & N_STAB) |
4080 | { | |
16db6055 EZ |
4081 | /* If we found a trailing N_SO with no name, process |
4082 | it here instead of in process_one_symbol, so we | |
4083 | can keep a handle to its symtab. The symtab | |
4084 | would otherwise be ended twice, once in | |
025bb325 | 4085 | process_one_symbol, and once after this loop. */ |
16db6055 EZ |
4086 | if (type_code == N_SO |
4087 | && last_source_file | |
4088 | && previous_stab_code != (unsigned char) N_SO | |
4089 | && *name == '\000') | |
4090 | { | |
4091 | valu += ANOFFSET (pst->section_offsets, | |
4092 | SECT_OFF_TEXT (pst->objfile)); | |
4093 | previous_stab_code = N_SO; | |
4094 | st = end_symtab (valu, pst->objfile, | |
4095 | SECT_OFF_TEXT (pst->objfile)); | |
4096 | end_stabs (); | |
4097 | last_symtab_ended = 1; | |
4098 | } | |
4099 | else | |
4100 | { | |
4101 | last_symtab_ended = 0; | |
4102 | process_one_symbol (type_code, 0, valu, name, | |
4103 | pst->section_offsets, pst->objfile); | |
4104 | } | |
c906108c SS |
4105 | } |
4106 | /* Similarly a hack. */ | |
4107 | else if (name[0] == '#') | |
4108 | { | |
4109 | process_one_symbol (N_SLINE, 0, valu, name, | |
4110 | pst->section_offsets, pst->objfile); | |
4111 | } | |
4112 | if (type_code == N_FUN) | |
4113 | { | |
4114 | /* Make up special symbol to contain | |
025bb325 | 4115 | procedure specific info. */ |
f92761ec | 4116 | struct mdebug_extra_func_info *e = |
b8d56208 | 4117 | ((struct mdebug_extra_func_info *) |
dd707e8e | 4118 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
b8d56208 | 4119 | sizeof (struct mdebug_extra_func_info))); |
f92761ec | 4120 | struct symbol *s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
c906108c | 4121 | |
f92761ec | 4122 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); |
176620f1 | 4123 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
c906108c | 4124 | SYMBOL_CLASS (s) = LOC_CONST; |
46bf5051 | 4125 | SYMBOL_TYPE (s) = objfile_type (pst->objfile)->builtin_void; |
9918cab9 | 4126 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
4127 | e->pdr.framereg = -1; |
4128 | add_symbol_to_list (s, &local_symbols); | |
4129 | } | |
4130 | } | |
4131 | else if (sh.st == stLabel) | |
4132 | { | |
4133 | if (sh.index == indexNil) | |
4134 | { | |
4135 | /* This is what the gcc2_compiled and __gnu_compiled_* | |
4136 | show up as. So don't complain. */ | |
4137 | ; | |
4138 | } | |
4139 | else | |
4140 | { | |
025bb325 | 4141 | /* Handle encoded stab line number. */ |
3e43a32a MS |
4142 | valu += ANOFFSET (pst->section_offsets, |
4143 | SECT_OFF_TEXT (pst->objfile)); | |
fbf65064 UW |
4144 | record_line (current_subfile, sh.index, |
4145 | gdbarch_addr_bits_remove (gdbarch, valu)); | |
c906108c SS |
4146 | } |
4147 | } | |
4148 | else if (sh.st == stProc || sh.st == stStaticProc | |
4149 | || sh.st == stStatic || sh.st == stEnd) | |
025bb325 | 4150 | /* These are generated by gcc-2.x, do not complain. */ |
c906108c SS |
4151 | ; |
4152 | else | |
3e43a32a MS |
4153 | complaint (&symfile_complaints, |
4154 | _("unknown stabs symbol %s"), name); | |
c906108c | 4155 | } |
16db6055 EZ |
4156 | |
4157 | if (! last_symtab_ended) | |
4158 | { | |
3e43a32a MS |
4159 | st = end_symtab (pst->texthigh, pst->objfile, |
4160 | SECT_OFF_TEXT (pst->objfile)); | |
16db6055 EZ |
4161 | end_stabs (); |
4162 | } | |
c906108c | 4163 | |
c906108c | 4164 | /* There used to be a call to sort_blocks here, but this should not |
c5aa993b JM |
4165 | be necessary for stabs symtabs. And as sort_blocks modifies the |
4166 | start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK, | |
4167 | it did the wrong thing if the first procedure in a file was | |
4168 | generated via asm statements. */ | |
c906108c SS |
4169 | |
4170 | /* Fill in procedure info next. */ | |
4171 | if (fh->cpd > 0) | |
4172 | { | |
4173 | PDR *pr_block; | |
4174 | struct cleanup *old_chain; | |
4175 | char *pdr_ptr; | |
4176 | char *pdr_end; | |
4177 | PDR *pdr_in; | |
4178 | PDR *pdr_in_end; | |
4179 | ||
4180 | pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR)); | |
b8c9b27d | 4181 | old_chain = make_cleanup (xfree, pr_block); |
c906108c SS |
4182 | |
4183 | pdr_ptr = ((char *) debug_info->external_pdr | |
4184 | + fh->ipdFirst * external_pdr_size); | |
4185 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
4186 | pdr_in = pr_block; | |
4187 | for (; | |
4188 | pdr_ptr < pdr_end; | |
4189 | pdr_ptr += external_pdr_size, pdr_in++) | |
4190 | { | |
4191 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4192 | ||
4193 | /* Determine lowest PDR address, the PDRs are not always | |
c5aa993b | 4194 | sorted. */ |
c906108c SS |
4195 | if (pdr_in == pr_block) |
4196 | lowest_pdr_addr = pdr_in->adr; | |
4197 | else if (pdr_in->adr < lowest_pdr_addr) | |
4198 | lowest_pdr_addr = pdr_in->adr; | |
4199 | } | |
4200 | ||
4201 | pdr_in = pr_block; | |
4202 | pdr_in_end = pdr_in + fh->cpd; | |
4203 | for (; pdr_in < pdr_in_end; pdr_in++) | |
4204 | parse_procedure (pdr_in, st, pst); | |
4205 | ||
4206 | do_cleanups (old_chain); | |
4207 | } | |
4208 | } | |
4209 | else | |
4210 | { | |
4211 | /* This symbol table contains ordinary ecoff entries. */ | |
4212 | ||
30cc903e | 4213 | int maxlines, size; |
c906108c SS |
4214 | EXTR *ext_ptr; |
4215 | ||
c906108c SS |
4216 | if (fh == 0) |
4217 | { | |
4218 | maxlines = 0; | |
de4f826b | 4219 | st = new_symtab ("unknown", 0, pst->objfile); |
c906108c SS |
4220 | } |
4221 | else | |
4222 | { | |
c906108c | 4223 | maxlines = 2 * fh->cline; |
de4f826b | 4224 | st = new_symtab (pst->filename, maxlines, pst->objfile); |
c906108c SS |
4225 | |
4226 | /* The proper language was already determined when building | |
4227 | the psymtab, use it. */ | |
4228 | st->language = PST_PRIVATE (pst)->pst_language; | |
4229 | } | |
4230 | ||
4231 | psymtab_language = st->language; | |
4232 | ||
4233 | lines = LINETABLE (st); | |
4234 | ||
025bb325 | 4235 | /* Get a new lexical context. */ |
c906108c SS |
4236 | |
4237 | push_parse_stack (); | |
4238 | top_stack->cur_st = st; | |
4239 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st), | |
4240 | STATIC_BLOCK); | |
5afc051b | 4241 | BLOCK_START (top_stack->cur_block) = pst->textlow; |
c906108c SS |
4242 | BLOCK_END (top_stack->cur_block) = 0; |
4243 | top_stack->blocktype = stFile; | |
c906108c SS |
4244 | top_stack->cur_type = 0; |
4245 | top_stack->procadr = 0; | |
4246 | top_stack->numargs = 0; | |
4247 | found_ecoff_debugging_info = 0; | |
4248 | ||
4249 | if (fh) | |
4250 | { | |
4251 | char *sym_ptr; | |
4252 | char *sym_end; | |
4253 | ||
025bb325 | 4254 | /* Parse local symbols first. */ |
c906108c SS |
4255 | sym_ptr = ((char *) debug_info->external_sym |
4256 | + fh->isymBase * external_sym_size); | |
4257 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
4258 | while (sym_ptr < sym_end) | |
4259 | { | |
4260 | SYMR sh; | |
4261 | int c; | |
4262 | ||
4263 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); | |
4264 | c = parse_symbol (&sh, | |
4265 | debug_info->external_aux + fh->iauxBase, | |
3e43a32a MS |
4266 | sym_ptr, fh->fBigendian, |
4267 | pst->section_offsets, pst->objfile); | |
c906108c SS |
4268 | sym_ptr += c * external_sym_size; |
4269 | } | |
4270 | ||
4271 | /* Linenumbers. At the end, check if we can save memory. | |
4272 | parse_lines has to look ahead an arbitrary number of PDR | |
4273 | structures, so we swap them all first. */ | |
4274 | if (fh->cpd > 0) | |
4275 | { | |
4276 | PDR *pr_block; | |
4277 | struct cleanup *old_chain; | |
4278 | char *pdr_ptr; | |
4279 | char *pdr_end; | |
4280 | PDR *pdr_in; | |
4281 | PDR *pdr_in_end; | |
4282 | ||
4283 | pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR)); | |
4284 | ||
b8c9b27d | 4285 | old_chain = make_cleanup (xfree, pr_block); |
c906108c SS |
4286 | |
4287 | pdr_ptr = ((char *) debug_info->external_pdr | |
4288 | + fh->ipdFirst * external_pdr_size); | |
4289 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
4290 | pdr_in = pr_block; | |
4291 | for (; | |
4292 | pdr_ptr < pdr_end; | |
4293 | pdr_ptr += external_pdr_size, pdr_in++) | |
4294 | { | |
4295 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4296 | ||
4297 | /* Determine lowest PDR address, the PDRs are not always | |
4298 | sorted. */ | |
4299 | if (pdr_in == pr_block) | |
4300 | lowest_pdr_addr = pdr_in->adr; | |
4301 | else if (pdr_in->adr < lowest_pdr_addr) | |
4302 | lowest_pdr_addr = pdr_in->adr; | |
4303 | } | |
4304 | ||
3e43a32a MS |
4305 | parse_lines (fh, pr_block, lines, maxlines, |
4306 | pst, lowest_pdr_addr); | |
c906108c SS |
4307 | if (lines->nitems < fh->cline) |
4308 | lines = shrink_linetable (lines); | |
4309 | ||
4310 | /* Fill in procedure info next. */ | |
4311 | pdr_in = pr_block; | |
4312 | pdr_in_end = pdr_in + fh->cpd; | |
4313 | for (; pdr_in < pdr_in_end; pdr_in++) | |
4314 | parse_procedure (pdr_in, 0, pst); | |
4315 | ||
4316 | do_cleanups (old_chain); | |
4317 | } | |
4318 | } | |
4319 | ||
30cc903e TT |
4320 | size = lines->nitems; |
4321 | if (size > 1) | |
4322 | --size; | |
dd707e8e | 4323 | LINETABLE (st) = obstack_copy (&mdebugread_objfile->objfile_obstack, |
30cc903e TT |
4324 | lines, |
4325 | (sizeof (struct linetable) | |
4326 | + size * sizeof (lines->item))); | |
4327 | xfree (lines); | |
c906108c SS |
4328 | |
4329 | /* .. and our share of externals. | |
025bb325 MS |
4330 | XXX use the global list to speed up things here. How? |
4331 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
c906108c | 4332 | top_stack->cur_st = st; |
3e43a32a MS |
4333 | top_stack->cur_block |
4334 | = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
4335 | GLOBAL_BLOCK); | |
c906108c | 4336 | top_stack->blocktype = stFile; |
c906108c SS |
4337 | |
4338 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
4339 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
3e43a32a MS |
4340 | parse_external (ext_ptr, fh->fBigendian, |
4341 | pst->section_offsets, pst->objfile); | |
c906108c SS |
4342 | |
4343 | /* If there are undefined symbols, tell the user. | |
c5aa993b JM |
4344 | The alpha has an undefined symbol for every symbol that is |
4345 | from a shared library, so tell the user only if verbose is on. */ | |
c906108c SS |
4346 | if (info_verbose && n_undef_symbols) |
4347 | { | |
a3f17187 | 4348 | printf_filtered (_("File %s contains %d unresolved references:"), |
c906108c | 4349 | st->filename, n_undef_symbols); |
3e43a32a MS |
4350 | printf_filtered ("\n\t%4d variables\n\t%4d " |
4351 | "procedures\n\t%4d labels\n", | |
c906108c SS |
4352 | n_undef_vars, n_undef_procs, n_undef_labels); |
4353 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
4354 | ||
4355 | } | |
4356 | pop_parse_stack (); | |
4357 | ||
4358 | st->primary = 1; | |
4359 | ||
c906108c SS |
4360 | sort_blocks (st); |
4361 | } | |
4362 | ||
4363 | /* Now link the psymtab and the symtab. */ | |
4364 | pst->symtab = st; | |
4365 | ||
dd707e8e | 4366 | mdebugread_objfile = NULL; |
c906108c SS |
4367 | } |
4368 | \f | |
025bb325 | 4369 | /* Ancillary parsing procedures. */ |
c906108c SS |
4370 | |
4371 | /* Return 1 if the symbol pointed to by SH has a cross reference | |
4372 | to an opaque aggregate type, else 0. */ | |
4373 | ||
4374 | static int | |
fba45db2 | 4375 | has_opaque_xref (FDR *fh, SYMR *sh) |
c906108c SS |
4376 | { |
4377 | TIR tir; | |
4378 | union aux_ext *ax; | |
4379 | RNDXR rn[1]; | |
4380 | unsigned int rf; | |
4381 | ||
4382 | if (sh->index == indexNil) | |
4383 | return 0; | |
4384 | ||
4385 | ax = debug_info->external_aux + fh->iauxBase + sh->index; | |
4386 | (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir); | |
4387 | if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum) | |
4388 | return 0; | |
4389 | ||
4390 | ax++; | |
4391 | (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn); | |
4392 | if (rn->rfd == 0xfff) | |
4393 | rf = AUX_GET_ISYM (fh->fBigendian, ax + 1); | |
4394 | else | |
4395 | rf = rn->rfd; | |
4396 | if (rf != -1) | |
4397 | return 0; | |
4398 | return 1; | |
4399 | } | |
4400 | ||
4401 | /* Lookup the type at relative index RN. Return it in TPP | |
4402 | if found and in any event come up with its name PNAME. | |
4403 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). | |
025bb325 | 4404 | Return value says how many aux symbols we ate. */ |
c906108c SS |
4405 | |
4406 | static int | |
3e43a32a MS |
4407 | cross_ref (int fd, union aux_ext *ax, struct type **tpp, |
4408 | enum type_code type_code, | |
025bb325 | 4409 | /* Use to alloc new type if none is found. */ |
fba45db2 | 4410 | char **pname, int bigend, char *sym_name) |
c906108c SS |
4411 | { |
4412 | RNDXR rn[1]; | |
4413 | unsigned int rf; | |
4414 | int result = 1; | |
4415 | FDR *fh; | |
4416 | char *esh; | |
4417 | SYMR sh; | |
4418 | int xref_fd; | |
4419 | struct mdebug_pending *pend; | |
4420 | ||
c5aa993b | 4421 | *tpp = (struct type *) NULL; |
c906108c SS |
4422 | |
4423 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn); | |
4424 | ||
025bb325 | 4425 | /* Escape index means 'the next one'. */ |
c906108c SS |
4426 | if (rn->rfd == 0xfff) |
4427 | { | |
4428 | result++; | |
4429 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
4430 | } | |
4431 | else | |
4432 | { | |
4433 | rf = rn->rfd; | |
4434 | } | |
4435 | ||
4436 | /* mips cc uses a rf of -1 for opaque struct definitions. | |
4437 | Set TYPE_FLAG_STUB for these types so that check_typedef will | |
4438 | resolve them if the struct gets defined in another compilation unit. */ | |
4439 | if (rf == -1) | |
4440 | { | |
4441 | *pname = "<undefined>"; | |
3e43a32a | 4442 | *tpp = init_type (type_code, 0, TYPE_FLAG_STUB, |
dd707e8e | 4443 | (char *) NULL, mdebugread_objfile); |
c906108c SS |
4444 | return result; |
4445 | } | |
4446 | ||
4447 | /* mips cc uses an escaped rn->index of 0 for struct return types | |
025bb325 | 4448 | of procedures that were compiled without -g. These will always remain |
c906108c SS |
4449 | undefined. */ |
4450 | if (rn->rfd == 0xfff && rn->index == 0) | |
4451 | { | |
4452 | *pname = "<undefined>"; | |
4453 | return result; | |
4454 | } | |
4455 | ||
4456 | /* Find the relative file descriptor and the symbol in it. */ | |
4457 | fh = get_rfd (fd, rf); | |
4458 | xref_fd = fh - debug_info->fdr; | |
4459 | ||
4460 | if (rn->index >= fh->csym) | |
4461 | { | |
4462 | /* File indirect entry is corrupt. */ | |
4463 | *pname = "<illegal>"; | |
23136709 | 4464 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4465 | return result; |
4466 | } | |
4467 | ||
4468 | /* If we have processed this symbol then we left a forwarding | |
4469 | pointer to the type in the pending list. If not, we`ll put | |
4470 | it in a list of pending types, to be processed later when | |
4471 | the file will be. In any event, we collect the name for the | |
4472 | type here. */ | |
4473 | ||
4474 | esh = ((char *) debug_info->external_sym | |
4475 | + ((fh->isymBase + rn->index) | |
4476 | * debug_swap->external_sym_size)); | |
4477 | (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh); | |
4478 | ||
4479 | /* Make sure that this type of cross reference can be handled. */ | |
4480 | if ((sh.sc != scInfo | |
4481 | || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect | |
4482 | && sh.st != stStruct && sh.st != stUnion | |
4483 | && sh.st != stEnum)) | |
c5aa993b | 4484 | && (sh.st != stBlock || !SC_IS_COMMON (sh.sc))) |
c906108c SS |
4485 | { |
4486 | /* File indirect entry is corrupt. */ | |
4487 | *pname = "<illegal>"; | |
23136709 | 4488 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4489 | return result; |
4490 | } | |
4491 | ||
4492 | *pname = debug_info->ss + fh->issBase + sh.iss; | |
4493 | ||
4494 | pend = is_pending_symbol (fh, esh); | |
4495 | if (pend) | |
4496 | *tpp = pend->t; | |
4497 | else | |
4498 | { | |
4499 | /* We have not yet seen this type. */ | |
4500 | ||
4501 | if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect) | |
4502 | { | |
4503 | TIR tir; | |
4504 | ||
4505 | /* alpha cc puts out a stTypedef with a sh.iss of zero for | |
4506 | two cases: | |
4507 | a) forward declarations of structs/unions/enums which are not | |
c5aa993b | 4508 | defined in this compilation unit. |
025bb325 | 4509 | For these the type will be void. This is a bad design decision |
c5aa993b JM |
4510 | as cross referencing across compilation units is impossible |
4511 | due to the missing name. | |
c906108c | 4512 | b) forward declarations of structs/unions/enums/typedefs which |
c5aa993b | 4513 | are defined later in this file or in another file in the same |
025bb325 | 4514 | compilation unit. Irix5 cc uses a stIndirect symbol for this. |
c5aa993b | 4515 | Simply cross reference those again to get the true type. |
c906108c SS |
4516 | The forward references are not entered in the pending list and |
4517 | in the symbol table. */ | |
4518 | ||
4519 | (*debug_swap->swap_tir_in) (bigend, | |
4520 | &(debug_info->external_aux | |
4521 | + fh->iauxBase + sh.index)->a_ti, | |
4522 | &tir); | |
4523 | if (tir.tq0 != tqNil) | |
23136709 | 4524 | complaint (&symfile_complaints, |
e2e0b3e5 | 4525 | _("illegal tq0 in forward typedef for %s"), sym_name); |
c906108c SS |
4526 | switch (tir.bt) |
4527 | { | |
4528 | case btVoid: | |
4529 | *tpp = init_type (type_code, 0, 0, (char *) NULL, | |
dd707e8e | 4530 | mdebugread_objfile); |
c5aa993b | 4531 | *pname = "<undefined>"; |
c906108c SS |
4532 | break; |
4533 | ||
4534 | case btStruct: | |
4535 | case btUnion: | |
4536 | case btEnum: | |
4537 | cross_ref (xref_fd, | |
4538 | (debug_info->external_aux | |
4539 | + fh->iauxBase + sh.index + 1), | |
4540 | tpp, type_code, pname, | |
4541 | fh->fBigendian, sym_name); | |
4542 | break; | |
4543 | ||
4544 | case btTypedef: | |
025bb325 | 4545 | /* Follow a forward typedef. This might recursively |
c5aa993b JM |
4546 | call cross_ref till we get a non typedef'ed type. |
4547 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4548 | cannot handle typedefs without type copying. Type |
c5aa993b JM |
4549 | copying is impossible as we might have mutual forward |
4550 | references between two files and the copied type would not | |
4551 | get filled in when we later parse its definition. */ | |
c906108c SS |
4552 | *tpp = parse_type (xref_fd, |
4553 | debug_info->external_aux + fh->iauxBase, | |
4554 | sh.index, | |
c5aa993b | 4555 | (int *) NULL, |
c906108c SS |
4556 | fh->fBigendian, |
4557 | debug_info->ss + fh->issBase + sh.iss); | |
4558 | add_pending (fh, esh, *tpp); | |
4559 | break; | |
4560 | ||
4561 | default: | |
23136709 | 4562 | complaint (&symfile_complaints, |
e2e0b3e5 | 4563 | _("illegal bt %d in forward typedef for %s"), tir.bt, |
23136709 | 4564 | sym_name); |
c906108c | 4565 | *tpp = init_type (type_code, 0, 0, (char *) NULL, |
dd707e8e | 4566 | mdebugread_objfile); |
c906108c SS |
4567 | break; |
4568 | } | |
4569 | return result; | |
4570 | } | |
4571 | else if (sh.st == stTypedef) | |
4572 | { | |
025bb325 | 4573 | /* Parse the type for a normal typedef. This might recursively call |
c906108c SS |
4574 | cross_ref till we get a non typedef'ed type. |
4575 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4576 | cannot handle typedefs without type copying. But type copying is |
c906108c SS |
4577 | impossible as we might have mutual forward references between |
4578 | two files and the copied type would not get filled in when | |
4579 | we later parse its definition. */ | |
4580 | *tpp = parse_type (xref_fd, | |
4581 | debug_info->external_aux + fh->iauxBase, | |
4582 | sh.index, | |
c5aa993b | 4583 | (int *) NULL, |
c906108c SS |
4584 | fh->fBigendian, |
4585 | debug_info->ss + fh->issBase + sh.iss); | |
4586 | } | |
4587 | else | |
4588 | { | |
4589 | /* Cross reference to a struct/union/enum which is defined | |
4590 | in another file in the same compilation unit but that file | |
4591 | has not been parsed yet. | |
4592 | Initialize the type only, it will be filled in when | |
4593 | it's definition is parsed. */ | |
dd707e8e | 4594 | *tpp = init_type (type_code, 0, 0, (char *) NULL, mdebugread_objfile); |
c906108c SS |
4595 | } |
4596 | add_pending (fh, esh, *tpp); | |
4597 | } | |
4598 | ||
025bb325 | 4599 | /* We used one auxent normally, two if we got a "next one" rf. */ |
c906108c SS |
4600 | return result; |
4601 | } | |
4602 | ||
4603 | ||
4604 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
025bb325 | 4605 | keeping the symtab sorted. */ |
c906108c SS |
4606 | |
4607 | static struct symbol * | |
aa1ee363 | 4608 | mylookup_symbol (char *name, struct block *block, |
176620f1 | 4609 | domain_enum domain, enum address_class class) |
c906108c | 4610 | { |
de4f826b DC |
4611 | struct dict_iterator iter; |
4612 | int inc; | |
e88c90f2 | 4613 | struct symbol *sym; |
c906108c | 4614 | |
c906108c | 4615 | inc = name[0]; |
de4f826b | 4616 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 4617 | { |
3567439c | 4618 | if (SYMBOL_LINKAGE_NAME (sym)[0] == inc |
176620f1 | 4619 | && SYMBOL_DOMAIN (sym) == domain |
c906108c | 4620 | && SYMBOL_CLASS (sym) == class |
3567439c | 4621 | && strcmp (SYMBOL_LINKAGE_NAME (sym), name) == 0) |
c906108c | 4622 | return sym; |
c906108c | 4623 | } |
e88c90f2 | 4624 | |
c906108c SS |
4625 | block = BLOCK_SUPERBLOCK (block); |
4626 | if (block) | |
176620f1 | 4627 | return mylookup_symbol (name, block, domain, class); |
c906108c SS |
4628 | return 0; |
4629 | } | |
4630 | ||
4631 | ||
de4f826b | 4632 | /* Add a new symbol S to a block B. */ |
c906108c SS |
4633 | |
4634 | static void | |
c7efd0b9 | 4635 | add_symbol (struct symbol *s, struct symtab *symtab, struct block *b) |
c906108c | 4636 | { |
c7efd0b9 | 4637 | SYMBOL_SYMTAB (s) = symtab; |
de4f826b | 4638 | dict_add_symbol (BLOCK_DICT (b), s); |
c906108c SS |
4639 | } |
4640 | ||
025bb325 | 4641 | /* Add a new block B to a symtab S. */ |
c906108c SS |
4642 | |
4643 | static void | |
fba45db2 | 4644 | add_block (struct block *b, struct symtab *s) |
c906108c SS |
4645 | { |
4646 | struct blockvector *bv = BLOCKVECTOR (s); | |
4647 | ||
12b9c64f | 4648 | bv = (struct blockvector *) xrealloc ((void *) bv, |
c906108c SS |
4649 | (sizeof (struct blockvector) |
4650 | + BLOCKVECTOR_NBLOCKS (bv) | |
4651 | * sizeof (bv->block))); | |
4652 | if (bv != BLOCKVECTOR (s)) | |
4653 | BLOCKVECTOR (s) = bv; | |
4654 | ||
4655 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; | |
4656 | } | |
4657 | ||
4658 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
4659 | MIPS' linenumber encoding might need more than one byte | |
4660 | to describe it, LAST is used to detect these continuation lines. | |
4661 | ||
4662 | Combining lines with the same line number seems like a bad idea. | |
4663 | E.g: There could be a line number entry with the same line number after the | |
4664 | prologue and GDB should not ignore it (this is a better way to find | |
4665 | a prologue than mips_skip_prologue). | |
4666 | But due to the compressed line table format there are line number entries | |
4667 | for the same line which are needed to bridge the gap to the next | |
025bb325 | 4668 | line number entry. These entries have a bogus address info with them |
c906108c SS |
4669 | and we are unable to tell them from intended duplicate line number |
4670 | entries. | |
4671 | This is another reason why -ggdb debugging format is preferable. */ | |
4672 | ||
4673 | static int | |
fba45db2 | 4674 | add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last) |
c906108c SS |
4675 | { |
4676 | /* DEC c89 sometimes produces zero linenos which confuse gdb. | |
025bb325 | 4677 | Change them to something sensible. */ |
c906108c SS |
4678 | if (lineno == 0) |
4679 | lineno = 1; | |
4680 | if (last == 0) | |
025bb325 | 4681 | last = -2; /* Make sure we record first line. */ |
c906108c | 4682 | |
025bb325 | 4683 | if (last == lineno) /* Skip continuation lines. */ |
c906108c SS |
4684 | return lineno; |
4685 | ||
4686 | lt->item[lt->nitems].line = lineno; | |
4687 | lt->item[lt->nitems++].pc = adr << 2; | |
4688 | return lineno; | |
4689 | } | |
4690 | \f | |
025bb325 | 4691 | /* Sorting and reordering procedures. */ |
c906108c | 4692 | |
025bb325 | 4693 | /* Blocks with a smaller low bound should come first. */ |
c906108c SS |
4694 | |
4695 | static int | |
12b9c64f | 4696 | compare_blocks (const void *arg1, const void *arg2) |
c906108c | 4697 | { |
887432a5 | 4698 | LONGEST addr_diff; |
c906108c SS |
4699 | struct block **b1 = (struct block **) arg1; |
4700 | struct block **b2 = (struct block **) arg2; | |
4701 | ||
4702 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
4703 | if (addr_diff == 0) | |
4704 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); | |
4705 | return addr_diff; | |
4706 | } | |
4707 | ||
4708 | /* Sort the blocks of a symtab S. | |
4709 | Reorder the blocks in the blockvector by code-address, | |
025bb325 | 4710 | as required by some MI search routines. */ |
c906108c SS |
4711 | |
4712 | static void | |
fba45db2 | 4713 | sort_blocks (struct symtab *s) |
c906108c SS |
4714 | { |
4715 | struct blockvector *bv = BLOCKVECTOR (s); | |
4716 | ||
4717 | if (BLOCKVECTOR_NBLOCKS (bv) <= 2) | |
4718 | { | |
4719 | /* Cosmetic */ | |
4720 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
4721 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
4722 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
4723 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
4724 | return; | |
4725 | } | |
4726 | /* | |
4727 | * This is very unfortunate: normally all functions are compiled in | |
4728 | * the order they are found, but if the file is compiled -O3 things | |
4729 | * are very different. It would be nice to find a reliable test | |
4730 | * to detect -O3 images in advance. | |
4731 | */ | |
4732 | if (BLOCKVECTOR_NBLOCKS (bv) > 3) | |
4733 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), | |
4734 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
4735 | sizeof (struct block *), | |
4736 | compare_blocks); | |
4737 | ||
4738 | { | |
aa1ee363 AC |
4739 | CORE_ADDR high = 0; |
4740 | int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
c906108c SS |
4741 | |
4742 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
4743 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
4744 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
4745 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
4746 | } | |
4747 | ||
4748 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
4749 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
4750 | ||
4751 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4752 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4753 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4754 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4755 | } | |
4756 | \f | |
4757 | ||
025bb325 | 4758 | /* Constructor/restructor/destructor procedures. */ |
c906108c | 4759 | |
de4f826b | 4760 | /* Allocate a new symtab for NAME. Needs an estimate of how many |
025bb325 | 4761 | linenumbers MAXLINES we'll put in it. */ |
c906108c SS |
4762 | |
4763 | static struct symtab * | |
72b9f47f | 4764 | new_symtab (const char *name, int maxlines, struct objfile *objfile) |
c906108c SS |
4765 | { |
4766 | struct symtab *s = allocate_symtab (name, objfile); | |
4767 | ||
4768 | LINETABLE (s) = new_linetable (maxlines); | |
4769 | ||
025bb325 | 4770 | /* All symtabs must have at least two blocks. */ |
c906108c | 4771 | BLOCKVECTOR (s) = new_bvect (2); |
de4f826b DC |
4772 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) |
4773 | = new_block (NON_FUNCTION_BLOCK); | |
4774 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) | |
4775 | = new_block (NON_FUNCTION_BLOCK); | |
c906108c SS |
4776 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) = |
4777 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
4778 | ||
1c9e8358 | 4779 | s->debugformat = "ECOFF"; |
c906108c SS |
4780 | return (s); |
4781 | } | |
4782 | ||
025bb325 | 4783 | /* Allocate a new partial_symtab NAME. */ |
c906108c SS |
4784 | |
4785 | static struct partial_symtab * | |
fba45db2 | 4786 | new_psymtab (char *name, struct objfile *objfile) |
c906108c SS |
4787 | { |
4788 | struct partial_symtab *psymtab; | |
4789 | ||
4790 | psymtab = allocate_psymtab (name, objfile); | |
d4f3574e | 4791 | psymtab->section_offsets = objfile->section_offsets; |
c906108c | 4792 | |
025bb325 | 4793 | /* Keep a backpointer to the file's symbols. */ |
c906108c | 4794 | |
e38df1d0 TT |
4795 | psymtab->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
4796 | sizeof (struct symloc)); | |
12b9c64f | 4797 | memset (psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
4798 | CUR_BFD (psymtab) = cur_bfd; |
4799 | DEBUG_SWAP (psymtab) = debug_swap; | |
4800 | DEBUG_INFO (psymtab) = debug_info; | |
4801 | PENDING_LIST (psymtab) = pending_list; | |
4802 | ||
025bb325 | 4803 | /* The way to turn this into a symtab is to call... */ |
c906108c SS |
4804 | psymtab->read_symtab = mdebug_psymtab_to_symtab; |
4805 | return (psymtab); | |
4806 | } | |
4807 | ||
4808 | ||
4809 | /* Allocate a linetable array of the given SIZE. Since the struct | |
4810 | already includes one item, we subtract one when calculating the | |
4811 | proper size to allocate. */ | |
4812 | ||
4813 | static struct linetable * | |
fba45db2 | 4814 | new_linetable (int size) |
c906108c SS |
4815 | { |
4816 | struct linetable *l; | |
4817 | ||
30cc903e TT |
4818 | if (size > 1) |
4819 | --size; | |
4820 | size = size * sizeof (l->item) + sizeof (struct linetable); | |
c906108c SS |
4821 | l = (struct linetable *) xmalloc (size); |
4822 | l->nitems = 0; | |
4823 | return l; | |
4824 | } | |
4825 | ||
025bb325 | 4826 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, |
c906108c SS |
4827 | I am not so sure about the 3.4 ones. |
4828 | ||
4829 | Since the struct linetable already includes one item, we subtract one when | |
4830 | calculating the proper size to allocate. */ | |
4831 | ||
4832 | static struct linetable * | |
fba45db2 | 4833 | shrink_linetable (struct linetable *lt) |
c906108c | 4834 | { |
12b9c64f | 4835 | return (struct linetable *) xrealloc ((void *) lt, |
c906108c SS |
4836 | (sizeof (struct linetable) |
4837 | + ((lt->nitems - 1) | |
4838 | * sizeof (lt->item)))); | |
4839 | } | |
4840 | ||
025bb325 | 4841 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ |
c906108c SS |
4842 | |
4843 | static struct blockvector * | |
fba45db2 | 4844 | new_bvect (int nblocks) |
c906108c SS |
4845 | { |
4846 | struct blockvector *bv; | |
4847 | int size; | |
4848 | ||
4849 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); | |
4850 | bv = (struct blockvector *) xzalloc (size); | |
4851 | ||
4852 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; | |
4853 | ||
4854 | return bv; | |
4855 | } | |
4856 | ||
de4f826b DC |
4857 | /* Allocate and zero a new block, and set its BLOCK_DICT. If function |
4858 | is non-zero, assume the block is associated to a function, and make | |
4859 | sure that the symbols are stored linearly; otherwise, store them | |
4860 | hashed. */ | |
c906108c SS |
4861 | |
4862 | static struct block * | |
de4f826b | 4863 | new_block (enum block_type type) |
c906108c | 4864 | { |
a1632d59 DC |
4865 | /* FIXME: carlton/2003-09-11: This should use allocate_block to |
4866 | allocate the block. Which, in turn, suggests that the block | |
4867 | should be allocated on an obstack. */ | |
de4f826b | 4868 | struct block *retval = xzalloc (sizeof (struct block)); |
c906108c | 4869 | |
de4f826b DC |
4870 | if (type == FUNCTION_BLOCK) |
4871 | BLOCK_DICT (retval) = dict_create_linear_expandable (); | |
4872 | else | |
4873 | BLOCK_DICT (retval) = dict_create_hashed_expandable (); | |
c906108c | 4874 | |
de4f826b | 4875 | return retval; |
c906108c SS |
4876 | } |
4877 | ||
025bb325 | 4878 | /* Create a new symbol with printname NAME. */ |
c906108c SS |
4879 | |
4880 | static struct symbol * | |
fba45db2 | 4881 | new_symbol (char *name) |
c906108c SS |
4882 | { |
4883 | struct symbol *s = ((struct symbol *) | |
dd707e8e | 4884 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
c906108c SS |
4885 | sizeof (struct symbol))); |
4886 | ||
12b9c64f | 4887 | memset (s, 0, sizeof (*s)); |
33e5013e | 4888 | SYMBOL_SET_LANGUAGE (s, psymtab_language); |
dd707e8e | 4889 | SYMBOL_SET_NAMES (s, name, strlen (name), 1, mdebugread_objfile); |
c906108c SS |
4890 | return s; |
4891 | } | |
4892 | ||
025bb325 | 4893 | /* Create a new type with printname NAME. */ |
c906108c SS |
4894 | |
4895 | static struct type * | |
fba45db2 | 4896 | new_type (char *name) |
c906108c SS |
4897 | { |
4898 | struct type *t; | |
4899 | ||
dd707e8e | 4900 | t = alloc_type (mdebugread_objfile); |
c906108c | 4901 | TYPE_NAME (t) = name; |
b4ba55a1 | 4902 | INIT_CPLUS_SPECIFIC (t); |
c906108c SS |
4903 | return t; |
4904 | } | |
4905 | \f | |
4906 | /* Read ECOFF debugging information from a BFD section. This is | |
4907 | called from elfread.c. It parses the section into a | |
4908 | ecoff_debug_info struct, and then lets the rest of the file handle | |
4909 | it as normal. */ | |
4910 | ||
4911 | void | |
fba45db2 KB |
4912 | elfmdebug_build_psymtabs (struct objfile *objfile, |
4913 | const struct ecoff_debug_swap *swap, asection *sec) | |
c906108c SS |
4914 | { |
4915 | bfd *abfd = objfile->obfd; | |
4916 | struct ecoff_debug_info *info; | |
7134143f DJ |
4917 | struct cleanup *back_to; |
4918 | ||
4919 | /* FIXME: It's not clear whether we should be getting minimal symbol | |
4920 | information from .mdebug in an ELF file, or whether we will. | |
4921 | Re-initialize the minimal symbol reader in case we do. */ | |
4922 | ||
4923 | init_minimal_symbol_collection (); | |
4924 | back_to = make_cleanup_discard_minimal_symbols (); | |
c906108c SS |
4925 | |
4926 | info = ((struct ecoff_debug_info *) | |
8b92e4d5 | 4927 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
4928 | sizeof (struct ecoff_debug_info))); |
4929 | ||
4930 | if (!(*swap->read_debug_info) (abfd, sec, info)) | |
8a3fe4f8 | 4931 | error (_("Error reading ECOFF debugging information: %s"), |
c906108c SS |
4932 | bfd_errmsg (bfd_get_error ())); |
4933 | ||
d4f3574e | 4934 | mdebug_build_psymtabs (objfile, swap, info); |
7134143f DJ |
4935 | |
4936 | install_minimal_symbols (objfile); | |
4937 | do_cleanups (back_to); | |
c906108c | 4938 | } |
c906108c SS |
4939 | |
4940 | void | |
fba45db2 | 4941 | _initialize_mdebugread (void) |
c906108c | 4942 | { |
0a9d309a | 4943 | basic_type_data = register_objfile_data (); |
c906108c | 4944 | } |