Commit | Line | Data |
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c906108c | 1 | /* Read a symbol table in ECOFF format (Third-Eye). |
ee300cd4 | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
ee300cd4 | 4 | |
c906108c SS |
5 | Original version contributed by Alessandro Forin (af@cs.cmu.edu) at |
6 | CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor | |
7 | at Cygnus Support. | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | /* This module provides the function mdebug_build_psymtabs. It reads | |
25 | ECOFF debugging information into partial symbol tables. The | |
26 | debugging information is read from two structures. A struct | |
27 | ecoff_debug_swap includes the sizes of each ECOFF structure and | |
28 | swapping routines; these are fixed for a particular target. A | |
29 | struct ecoff_debug_info points to the debugging information for a | |
30 | particular object file. | |
31 | ||
32 | ECOFF symbol tables are mostly written in the byte order of the | |
33 | target machine. However, one section of the table (the auxiliary | |
34 | symbol information) is written in the host byte order. There is a | |
35 | bit in the other symbol info which describes which host byte order | |
36 | was used. ECOFF thereby takes the trophy from Intel `b.out' for | |
37 | the most brain-dead adaptation of a file format to byte order. | |
38 | ||
39 | This module can read all four of the known byte-order combinations, | |
40 | on any type of host. */ | |
41 | ||
42 | #include "defs.h" | |
43 | #include "symtab.h" | |
44 | #include "gdbtypes.h" | |
45 | #include "gdbcore.h" | |
0ba1096a | 46 | #include "filenames.h" |
c906108c | 47 | #include "objfiles.h" |
04ea0df1 | 48 | #include "gdb_obstack.h" |
c906108c SS |
49 | #include "buildsym.h" |
50 | #include "stabsread.h" | |
51 | #include "complaints.h" | |
52 | #include "demangle.h" | |
50f182aa | 53 | #include "gdb-demangle.h" |
fe898f56 | 54 | #include "block.h" |
de4f826b | 55 | #include "dictionary.h" |
5b123146 | 56 | #include "mdebugread.h" |
53ce3c39 | 57 | #include <sys/stat.h> |
ccefe4c4 | 58 | #include "psympriv.h" |
05cba821 | 59 | #include "source.h" |
c906108c | 60 | |
c906108c SS |
61 | #include "bfd.h" |
62 | ||
025bb325 | 63 | #include "coff/ecoff.h" /* COFF-like aspects of ecoff files. */ |
c906108c SS |
64 | |
65 | #include "libaout.h" /* Private BFD a.out information. */ | |
66 | #include "aout/aout64.h" | |
025bb325 | 67 | #include "aout/stab_gnu.h" /* STABS information. */ |
c906108c SS |
68 | |
69 | #include "expression.h" | |
c906108c | 70 | |
025bb325 | 71 | /* Provide a way to test if we have both ECOFF and ELF symbol tables. |
c906108c SS |
72 | We use this define in order to know whether we should override a |
73 | symbol's ECOFF section with its ELF section. This is necessary in | |
74 | case the symbol's ELF section could not be represented in ECOFF. */ | |
75 | #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
76 | && bfd_get_section_by_name (bfd, ".mdebug") != NULL) | |
91a81f69 TT |
77 | |
78 | /* The objfile we are currently reading. */ | |
79 | ||
dd707e8e | 80 | static struct objfile *mdebugread_objfile; |
91a81f69 | 81 | |
c906108c | 82 | \f |
c5aa993b | 83 | |
c906108c SS |
84 | /* We put a pointer to this structure in the read_symtab_private field |
85 | of the psymtab. */ | |
86 | ||
87 | struct symloc | |
c5aa993b JM |
88 | { |
89 | /* Index of the FDR that this psymtab represents. */ | |
90 | int fdr_idx; | |
91 | /* The BFD that the psymtab was created from. */ | |
92 | bfd *cur_bfd; | |
93 | const struct ecoff_debug_swap *debug_swap; | |
94 | struct ecoff_debug_info *debug_info; | |
95 | struct mdebug_pending **pending_list; | |
96 | /* Pointer to external symbols for this file. */ | |
97 | EXTR *extern_tab; | |
98 | /* Size of extern_tab. */ | |
99 | int extern_count; | |
100 | enum language pst_language; | |
101 | }; | |
c906108c SS |
102 | |
103 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) | |
104 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
105 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) | |
106 | #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap) | |
107 | #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info) | |
108 | #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list) | |
109 | ||
110 | #define SC_IS_TEXT(sc) ((sc) == scText \ | |
111 | || (sc) == scRConst \ | |
112 | || (sc) == scInit \ | |
113 | || (sc) == scFini) | |
114 | #define SC_IS_DATA(sc) ((sc) == scData \ | |
115 | || (sc) == scSData \ | |
116 | || (sc) == scRData \ | |
117 | || (sc) == scPData \ | |
118 | || (sc) == scXData) | |
119 | #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon) | |
0e931cf0 JB |
120 | #define SC_IS_BSS(sc) ((sc) == scBss) |
121 | #define SC_IS_SBSS(sc) ((sc) == scSBss) | |
c906108c | 122 | #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined) |
c906108c | 123 | \f |
025bb325 | 124 | /* Various complaints about symbol reading that don't abort the process. */ |
23136709 KB |
125 | static void |
126 | index_complaint (const char *arg1) | |
127 | { | |
e2e0b3e5 | 128 | complaint (&symfile_complaints, _("bad aux index at symbol %s"), arg1); |
23136709 | 129 | } |
c906108c | 130 | |
23136709 KB |
131 | static void |
132 | unknown_ext_complaint (const char *arg1) | |
133 | { | |
e2e0b3e5 | 134 | complaint (&symfile_complaints, _("unknown external symbol %s"), arg1); |
23136709 | 135 | } |
c906108c | 136 | |
23136709 KB |
137 | static void |
138 | basic_type_complaint (int arg1, const char *arg2) | |
139 | { | |
e2e0b3e5 | 140 | complaint (&symfile_complaints, _("cannot map ECOFF basic type 0x%x for %s"), |
23136709 KB |
141 | arg1, arg2); |
142 | } | |
c906108c | 143 | |
23136709 KB |
144 | static void |
145 | bad_tag_guess_complaint (const char *arg1) | |
146 | { | |
3e43a32a MS |
147 | complaint (&symfile_complaints, |
148 | _("guessed tag type of %s incorrectly"), arg1); | |
23136709 | 149 | } |
c906108c | 150 | |
23136709 KB |
151 | static void |
152 | bad_rfd_entry_complaint (const char *arg1, int arg2, int arg3) | |
153 | { | |
e2e0b3e5 | 154 | complaint (&symfile_complaints, _("bad rfd entry for %s: file %d, index %d"), |
23136709 KB |
155 | arg1, arg2, arg3); |
156 | } | |
c906108c | 157 | |
23136709 KB |
158 | static void |
159 | unexpected_type_code_complaint (const char *arg1) | |
160 | { | |
e2e0b3e5 | 161 | complaint (&symfile_complaints, _("unexpected type code for %s"), arg1); |
23136709 | 162 | } |
c906108c | 163 | |
025bb325 | 164 | /* Macros and extra defs. */ |
c906108c | 165 | |
025bb325 | 166 | /* Puns: hard to find whether -g was used and how. */ |
c906108c SS |
167 | |
168 | #define MIN_GLEVEL GLEVEL_0 | |
169 | #define compare_glevel(a,b) \ | |
170 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
171 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
172 | \f | |
025bb325 | 173 | /* Things that really are local to this module. */ |
c906108c | 174 | |
025bb325 | 175 | /* Remember what we deduced to be the source language of this psymtab. */ |
c906108c SS |
176 | |
177 | static enum language psymtab_language = language_unknown; | |
178 | ||
179 | /* Current BFD. */ | |
180 | ||
181 | static bfd *cur_bfd; | |
182 | ||
183 | /* How to parse debugging information for CUR_BFD. */ | |
184 | ||
185 | static const struct ecoff_debug_swap *debug_swap; | |
186 | ||
187 | /* Pointers to debugging information for CUR_BFD. */ | |
188 | ||
189 | static struct ecoff_debug_info *debug_info; | |
190 | ||
025bb325 | 191 | /* Pointer to current file decriptor record, and its index. */ |
c906108c SS |
192 | |
193 | static FDR *cur_fdr; | |
194 | static int cur_fd; | |
195 | ||
025bb325 | 196 | /* Index of current symbol. */ |
c906108c SS |
197 | |
198 | static int cur_sdx; | |
199 | ||
200 | /* Note how much "debuggable" this image is. We would like | |
025bb325 | 201 | to see at least one FDR with full symbols. */ |
c906108c SS |
202 | |
203 | static int max_gdbinfo; | |
204 | static int max_glevel; | |
205 | ||
025bb325 | 206 | /* When examining .o files, report on undefined symbols. */ |
c906108c SS |
207 | |
208 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
209 | ||
210 | /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
211 | ||
212 | static char stabs_symbol[] = STABS_SYMBOL; | |
213 | ||
c906108c SS |
214 | /* Nonzero if we have seen ecoff debugging info for a file. */ |
215 | ||
216 | static int found_ecoff_debugging_info; | |
217 | ||
025bb325 | 218 | /* Forward declarations. */ |
c906108c | 219 | |
12b9c64f | 220 | static int upgrade_type (int, struct type **, int, union aux_ext *, |
a121b7c1 | 221 | int, const char *); |
c906108c | 222 | |
8dddcb8f TT |
223 | static void parse_partial_symbols (minimal_symbol_reader &, |
224 | struct objfile *); | |
c906108c | 225 | |
a14ed312 | 226 | static int has_opaque_xref (FDR *, SYMR *); |
c906108c | 227 | |
12b9c64f | 228 | static int cross_ref (int, union aux_ext *, struct type **, enum type_code, |
a121b7c1 | 229 | const char **, int, const char *); |
c906108c | 230 | |
a121b7c1 | 231 | static struct symbol *new_symbol (const char *); |
c906108c | 232 | |
a14ed312 | 233 | static struct type *new_type (char *); |
c906108c | 234 | |
de4f826b | 235 | enum block_type { FUNCTION_BLOCK, NON_FUNCTION_BLOCK }; |
c906108c | 236 | |
5ffa0793 | 237 | static struct block *new_block (enum block_type, enum language); |
de4f826b | 238 | |
43f3e411 | 239 | static struct compunit_symtab *new_symtab (const char *, int, struct objfile *); |
c906108c | 240 | |
a14ed312 | 241 | static struct linetable *new_linetable (int); |
c906108c | 242 | |
a14ed312 | 243 | static struct blockvector *new_bvect (int); |
c906108c | 244 | |
a14ed312 | 245 | static struct type *parse_type (int, union aux_ext *, unsigned int, int *, |
a121b7c1 | 246 | int, const char *); |
c906108c | 247 | |
a121b7c1 | 248 | static struct symbol *mylookup_symbol (const char *, const struct block *, |
3977b71f | 249 | domain_enum, enum address_class); |
c906108c | 250 | |
a14ed312 | 251 | static void sort_blocks (struct symtab *); |
c906108c | 252 | |
a121b7c1 | 253 | static struct partial_symtab *new_psymtab (const char *, struct objfile *); |
c906108c | 254 | |
5c80ed9d TT |
255 | static void psymtab_to_symtab_1 (struct objfile *objfile, |
256 | struct partial_symtab *, const char *); | |
c906108c | 257 | |
a14ed312 | 258 | static void add_block (struct block *, struct symtab *); |
c906108c | 259 | |
c7efd0b9 | 260 | static void add_symbol (struct symbol *, struct symtab *, struct block *); |
c906108c | 261 | |
a14ed312 | 262 | static int add_line (struct linetable *, int, CORE_ADDR, int); |
c906108c | 263 | |
a14ed312 | 264 | static struct linetable *shrink_linetable (struct linetable *); |
c906108c | 265 | |
12b9c64f AO |
266 | static void handle_psymbol_enumerators (struct objfile *, FDR *, int, |
267 | CORE_ADDR); | |
c906108c | 268 | |
a121b7c1 | 269 | static const char *mdebug_next_symbol_text (struct objfile *); |
c906108c | 270 | \f |
257e7a09 YQ |
271 | /* Exported procedure: Builds a symtab from the partial symtab SELF. |
272 | Restores the environment in effect when SELF was created, delegates | |
c906108c | 273 | most of the work to an ancillary procedure, and sorts |
257e7a09 | 274 | and reorders the symtab list at the end. SELF is not NULL. */ |
c906108c SS |
275 | |
276 | static void | |
257e7a09 | 277 | mdebug_read_symtab (struct partial_symtab *self, struct objfile *objfile) |
c906108c | 278 | { |
c906108c SS |
279 | if (info_verbose) |
280 | { | |
257e7a09 | 281 | printf_filtered (_("Reading in symbols for %s..."), self->filename); |
c906108c SS |
282 | gdb_flush (gdb_stdout); |
283 | } | |
284 | ||
285 | next_symbol_text_func = mdebug_next_symbol_text; | |
286 | ||
257e7a09 | 287 | psymtab_to_symtab_1 (objfile, self, self->filename); |
c906108c SS |
288 | |
289 | /* Match with global symbols. This only needs to be done once, | |
025bb325 | 290 | after all of the symtabs and dependencies have been read in. */ |
5c80ed9d | 291 | scan_file_globals (objfile); |
c906108c SS |
292 | |
293 | if (info_verbose) | |
a3f17187 | 294 | printf_filtered (_("done.\n")); |
c906108c SS |
295 | } |
296 | \f | |
025bb325 | 297 | /* File-level interface functions. */ |
c906108c | 298 | |
025bb325 | 299 | /* Find a file descriptor given its index RF relative to a file CF. */ |
c906108c SS |
300 | |
301 | static FDR * | |
fba45db2 | 302 | get_rfd (int cf, int rf) |
c906108c SS |
303 | { |
304 | FDR *fdrs; | |
52f0bd74 | 305 | FDR *f; |
c906108c SS |
306 | RFDT rfd; |
307 | ||
308 | fdrs = debug_info->fdr; | |
309 | f = fdrs + cf; | |
025bb325 | 310 | /* Object files do not have the RFD table, all refs are absolute. */ |
c906108c SS |
311 | if (f->rfdBase == 0) |
312 | return fdrs + rf; | |
313 | (*debug_swap->swap_rfd_in) (cur_bfd, | |
c5aa993b JM |
314 | ((char *) debug_info->external_rfd |
315 | + ((f->rfdBase + rf) | |
316 | * debug_swap->external_rfd_size)), | |
317 | &rfd); | |
c906108c SS |
318 | return fdrs + rfd; |
319 | } | |
320 | ||
025bb325 | 321 | /* Return a safer print NAME for a file descriptor. */ |
c906108c | 322 | |
a121b7c1 | 323 | static const char * |
fba45db2 | 324 | fdr_name (FDR *f) |
c906108c SS |
325 | { |
326 | if (f->rss == -1) | |
327 | return "<stripped file>"; | |
328 | if (f->rss == 0) | |
329 | return "<NFY>"; | |
330 | return debug_info->ss + f->issBase + f->rss; | |
331 | } | |
332 | ||
333 | ||
334 | /* Read in and parse the symtab of the file OBJFILE. Symbols from | |
335 | different sections are relocated via the SECTION_OFFSETS. */ | |
336 | ||
337 | void | |
8dddcb8f TT |
338 | mdebug_build_psymtabs (minimal_symbol_reader &reader, |
339 | struct objfile *objfile, | |
fba45db2 KB |
340 | const struct ecoff_debug_swap *swap, |
341 | struct ecoff_debug_info *info) | |
c906108c SS |
342 | { |
343 | cur_bfd = objfile->obfd; | |
344 | debug_swap = swap; | |
345 | debug_info = info; | |
346 | ||
d3d55eeb EZ |
347 | stabsread_new_init (); |
348 | buildsym_new_init (); | |
349 | free_header_files (); | |
350 | init_header_files (); | |
351 | ||
c906108c SS |
352 | /* Make sure all the FDR information is swapped in. */ |
353 | if (info->fdr == (FDR *) NULL) | |
354 | { | |
355 | char *fdr_src; | |
356 | char *fdr_end; | |
357 | FDR *fdr_ptr; | |
358 | ||
8b92e4d5 | 359 | info->fdr = (FDR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
360 | (info->symbolic_header.ifdMax |
361 | * sizeof (FDR))); | |
19ba03f4 | 362 | fdr_src = (char *) info->external_fdr; |
c906108c SS |
363 | fdr_end = (fdr_src |
364 | + info->symbolic_header.ifdMax * swap->external_fdr_size); | |
365 | fdr_ptr = info->fdr; | |
366 | for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++) | |
367 | (*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr); | |
368 | } | |
369 | ||
8dddcb8f | 370 | parse_partial_symbols (reader, objfile); |
c906108c SS |
371 | |
372 | #if 0 | |
373 | /* Check to make sure file was compiled with -g. If not, warn the | |
374 | user of this limitation. */ | |
375 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) | |
376 | { | |
377 | if (max_gdbinfo == 0) | |
3e43a32a MS |
378 | printf_unfiltered (_("\n%s not compiled with -g, " |
379 | "debugging support is limited.\n"), | |
c5aa993b | 380 | objfile->name); |
3e43a32a MS |
381 | printf_unfiltered (_("You should compile with -g2 or " |
382 | "-g3 for best debugging support.\n")); | |
c906108c SS |
383 | gdb_flush (gdb_stdout); |
384 | } | |
385 | #endif | |
386 | } | |
387 | \f | |
388 | /* Local utilities */ | |
389 | ||
025bb325 | 390 | /* Map of FDR indexes to partial symtabs. */ |
c906108c SS |
391 | |
392 | struct pst_map | |
393 | { | |
394 | struct partial_symtab *pst; /* the psymtab proper */ | |
395 | long n_globals; /* exported globals (external symbols) */ | |
396 | long globals_offset; /* cumulative */ | |
397 | }; | |
398 | ||
399 | ||
400 | /* Utility stack, used to nest procedures and blocks properly. | |
401 | It is a doubly linked list, to avoid too many alloc/free. | |
402 | Since we might need it quite a few times it is NOT deallocated | |
025bb325 | 403 | after use. */ |
c906108c SS |
404 | |
405 | static struct parse_stack | |
c5aa993b JM |
406 | { |
407 | struct parse_stack *next, *prev; | |
025bb325 MS |
408 | struct symtab *cur_st; /* Current symtab. */ |
409 | struct block *cur_block; /* Block in it. */ | |
c5aa993b JM |
410 | |
411 | /* What are we parsing. stFile, or stBlock are for files and | |
412 | blocks. stProc or stStaticProc means we have seen the start of a | |
413 | procedure, but not the start of the block within in. When we see | |
414 | the start of that block, we change it to stNil, without pushing a | |
415 | new block, i.e. stNil means both a procedure and a block. */ | |
416 | ||
417 | int blocktype; | |
418 | ||
025bb325 MS |
419 | struct type *cur_type; /* Type we parse fields for. */ |
420 | int cur_field; /* Field number in cur_type. */ | |
421 | CORE_ADDR procadr; /* Start addres of this procedure. */ | |
422 | int numargs; /* Its argument count. */ | |
c5aa993b | 423 | } |
c906108c SS |
424 | |
425 | *top_stack; /* Top stack ptr */ | |
426 | ||
427 | ||
025bb325 | 428 | /* Enter a new lexical context. */ |
c906108c SS |
429 | |
430 | static void | |
fba45db2 | 431 | push_parse_stack (void) |
c906108c | 432 | { |
fe978cb0 | 433 | struct parse_stack *newobj; |
c906108c | 434 | |
025bb325 | 435 | /* Reuse frames if possible. */ |
c906108c | 436 | if (top_stack && top_stack->prev) |
fe978cb0 | 437 | newobj = top_stack->prev; |
c906108c | 438 | else |
8d749320 | 439 | newobj = XCNEW (struct parse_stack); |
025bb325 | 440 | /* Initialize new frame with previous content. */ |
c906108c SS |
441 | if (top_stack) |
442 | { | |
fe978cb0 | 443 | struct parse_stack *prev = newobj->prev; |
c906108c | 444 | |
fe978cb0 PA |
445 | *newobj = *top_stack; |
446 | top_stack->prev = newobj; | |
447 | newobj->prev = prev; | |
448 | newobj->next = top_stack; | |
c906108c | 449 | } |
fe978cb0 | 450 | top_stack = newobj; |
c906108c SS |
451 | } |
452 | ||
025bb325 | 453 | /* Exit a lexical context. */ |
c906108c SS |
454 | |
455 | static void | |
fba45db2 | 456 | pop_parse_stack (void) |
c906108c SS |
457 | { |
458 | if (!top_stack) | |
459 | return; | |
460 | if (top_stack->next) | |
461 | top_stack = top_stack->next; | |
462 | } | |
463 | ||
464 | ||
465 | /* Cross-references might be to things we haven't looked at | |
466 | yet, e.g. type references. To avoid too many type | |
467 | duplications we keep a quick fixup table, an array | |
025bb325 | 468 | of lists of references indexed by file descriptor. */ |
c906108c SS |
469 | |
470 | struct mdebug_pending | |
471 | { | |
472 | struct mdebug_pending *next; /* link */ | |
473 | char *s; /* the unswapped symbol */ | |
474 | struct type *t; /* its partial type descriptor */ | |
475 | }; | |
476 | ||
477 | ||
b8b98ad1 TT |
478 | /* The pending information is kept for an entire object file. We |
479 | allocate the pending information table when we create the partial | |
480 | symbols, and we store a pointer to the single table in each | |
481 | psymtab. */ | |
c906108c SS |
482 | |
483 | static struct mdebug_pending **pending_list; | |
484 | ||
025bb325 | 485 | /* Check whether we already saw symbol SH in file FH. */ |
c906108c SS |
486 | |
487 | static struct mdebug_pending * | |
fba45db2 | 488 | is_pending_symbol (FDR *fh, char *sh) |
c906108c SS |
489 | { |
490 | int f_idx = fh - debug_info->fdr; | |
52f0bd74 | 491 | struct mdebug_pending *p; |
c906108c | 492 | |
025bb325 | 493 | /* Linear search is ok, list is typically no more than 10 deep. */ |
c906108c SS |
494 | for (p = pending_list[f_idx]; p; p = p->next) |
495 | if (p->s == sh) | |
496 | break; | |
497 | return p; | |
498 | } | |
499 | ||
025bb325 | 500 | /* Add a new symbol SH of type T. */ |
c906108c SS |
501 | |
502 | static void | |
fba45db2 | 503 | add_pending (FDR *fh, char *sh, struct type *t) |
c906108c SS |
504 | { |
505 | int f_idx = fh - debug_info->fdr; | |
506 | struct mdebug_pending *p = is_pending_symbol (fh, sh); | |
507 | ||
025bb325 | 508 | /* Make sure we do not make duplicates. */ |
c906108c SS |
509 | if (!p) |
510 | { | |
511 | p = ((struct mdebug_pending *) | |
dd707e8e | 512 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
c906108c SS |
513 | sizeof (struct mdebug_pending))); |
514 | p->s = sh; | |
515 | p->t = t; | |
516 | p->next = pending_list[f_idx]; | |
517 | pending_list[f_idx] = p; | |
518 | } | |
519 | } | |
520 | \f | |
521 | ||
025bb325 | 522 | /* Parsing Routines proper. */ |
c906108c | 523 | |
0fde2c53 DE |
524 | static void |
525 | reg_value_complaint (int regnum, int num_regs, const char *sym) | |
526 | { | |
527 | complaint (&symfile_complaints, | |
528 | _("bad register number %d (max %d) in symbol %s"), | |
529 | regnum, num_regs - 1, sym); | |
530 | } | |
531 | ||
025bb325 | 532 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. |
c906108c SS |
533 | For blocks, procedures and types we open a new lexical context. |
534 | This is basically just a big switch on the symbol's type. Argument | |
535 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
536 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
537 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
538 | aux symbols are big-endian or little-endian. Return count of | |
539 | SYMR's handled (normally one). */ | |
540 | ||
768a979c UW |
541 | static int |
542 | mdebug_reg_to_regnum (struct symbol *sym, struct gdbarch *gdbarch) | |
543 | { | |
0fde2c53 DE |
544 | int regno = gdbarch_ecoff_reg_to_regnum (gdbarch, SYMBOL_VALUE (sym)); |
545 | ||
546 | if (regno < 0 | |
547 | || regno >= (gdbarch_num_regs (gdbarch) | |
548 | + gdbarch_num_pseudo_regs (gdbarch))) | |
549 | { | |
550 | reg_value_complaint (regno, | |
551 | gdbarch_num_regs (gdbarch) | |
552 | + gdbarch_num_pseudo_regs (gdbarch), | |
553 | SYMBOL_PRINT_NAME (sym)); | |
554 | ||
555 | regno = gdbarch_sp_regnum (gdbarch); /* Known safe, though useless. */ | |
556 | } | |
557 | ||
558 | return regno; | |
768a979c UW |
559 | } |
560 | ||
561 | static const struct symbol_register_ops mdebug_register_funcs = { | |
562 | mdebug_reg_to_regnum | |
563 | }; | |
564 | ||
f1e6e072 TT |
565 | /* The "aclass" indices for computed symbols. */ |
566 | ||
567 | static int mdebug_register_index; | |
568 | static int mdebug_regparm_index; | |
569 | ||
d2242e34 PA |
570 | /* Common code for symbols describing data. */ |
571 | ||
572 | static void | |
573 | add_data_symbol (SYMR *sh, union aux_ext *ax, int bigend, | |
574 | struct symbol *s, int aclass_index, struct block *b, | |
a121b7c1 | 575 | struct objfile *objfile, const char *name) |
d2242e34 PA |
576 | { |
577 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; | |
578 | SYMBOL_ACLASS_INDEX (s) = aclass_index; | |
579 | add_symbol (s, top_stack->cur_st, b); | |
580 | ||
581 | /* Type could be missing if file is compiled without debugging info. */ | |
582 | if (SC_IS_UNDEF (sh->sc) | |
583 | || sh->sc == scNil || sh->index == indexNil) | |
584 | SYMBOL_TYPE (s) = objfile_type (objfile)->nodebug_data_symbol; | |
585 | else | |
586 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
587 | /* Value of a data symbol is its memory address. */ | |
588 | } | |
589 | ||
c906108c | 590 | static int |
fba45db2 KB |
591 | parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend, |
592 | struct section_offsets *section_offsets, struct objfile *objfile) | |
c906108c | 593 | { |
5e2b427d | 594 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c | 595 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
12b9c64f | 596 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
a121b7c1 | 597 | const char *name; |
c906108c SS |
598 | struct symbol *s; |
599 | struct block *b; | |
600 | struct mdebug_pending *pend; | |
601 | struct type *t; | |
602 | struct field *f; | |
603 | int count = 1; | |
c906108c SS |
604 | TIR tir; |
605 | long svalue = sh->value; | |
606 | int bitsize; | |
607 | ||
608 | if (ext_sh == (char *) NULL) | |
609 | name = debug_info->ssext + sh->iss; | |
610 | else | |
611 | name = debug_info->ss + cur_fdr->issBase + sh->iss; | |
612 | ||
613 | switch (sh->sc) | |
614 | { | |
615 | case scText: | |
616 | case scRConst: | |
617 | /* Do not relocate relative values. | |
c5aa993b JM |
618 | The value of a stEnd symbol is the displacement from the |
619 | corresponding start symbol value. | |
620 | The value of a stBlock symbol is the displacement from the | |
621 | procedure address. */ | |
c906108c | 622 | if (sh->st != stEnd && sh->st != stBlock) |
b8fbeb18 | 623 | sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile)); |
c906108c SS |
624 | break; |
625 | case scData: | |
626 | case scSData: | |
627 | case scRData: | |
628 | case scPData: | |
629 | case scXData: | |
b8fbeb18 | 630 | sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile)); |
c906108c SS |
631 | break; |
632 | case scBss: | |
633 | case scSBss: | |
b8fbeb18 | 634 | sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile)); |
c906108c SS |
635 | break; |
636 | } | |
637 | ||
638 | switch (sh->st) | |
639 | { | |
640 | case stNil: | |
641 | break; | |
642 | ||
025bb325 | 643 | case stGlobal: /* External symbol, goes into global block. */ |
439247b6 | 644 | b = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack->cur_st), |
c906108c SS |
645 | GLOBAL_BLOCK); |
646 | s = new_symbol (name); | |
647 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
d2242e34 PA |
648 | add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name); |
649 | break; | |
c906108c | 650 | |
025bb325 | 651 | case stStatic: /* Static data, goes into current block. */ |
c906108c SS |
652 | b = top_stack->cur_block; |
653 | s = new_symbol (name); | |
c5aa993b | 654 | if (SC_IS_COMMON (sh->sc)) |
c906108c SS |
655 | { |
656 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
657 | address is not in the symbol; we need to fix it later in | |
658 | scan_file_globals. */ | |
3567439c | 659 | int bucket = hashname (SYMBOL_LINKAGE_NAME (s)); |
c906108c SS |
660 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; |
661 | global_sym_chain[bucket] = s; | |
662 | } | |
663 | else | |
664 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
d2242e34 PA |
665 | add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name); |
666 | break; | |
c906108c | 667 | |
025bb325 | 668 | case stLocal: /* Local variable, goes into current block. */ |
768a979c UW |
669 | b = top_stack->cur_block; |
670 | s = new_symbol (name); | |
671 | SYMBOL_VALUE (s) = svalue; | |
c906108c | 672 | if (sh->sc == scRegister) |
d2242e34 PA |
673 | add_data_symbol (sh, ax, bigend, s, mdebug_register_index, |
674 | b, objfile, name); | |
c906108c | 675 | else |
d2242e34 PA |
676 | add_data_symbol (sh, ax, bigend, s, LOC_LOCAL, |
677 | b, objfile, name); | |
c906108c SS |
678 | break; |
679 | ||
025bb325 MS |
680 | case stParam: /* Arg to procedure, goes into current |
681 | block. */ | |
c906108c SS |
682 | max_gdbinfo++; |
683 | found_ecoff_debugging_info = 1; | |
684 | top_stack->numargs++; | |
685 | ||
686 | /* Special GNU C++ name. */ | |
687 | if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0) | |
025bb325 | 688 | name = "this"; /* FIXME, not alloc'd in obstack. */ |
c906108c SS |
689 | s = new_symbol (name); |
690 | ||
176620f1 | 691 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
2a2d4dc3 | 692 | SYMBOL_IS_ARGUMENT (s) = 1; |
c906108c SS |
693 | switch (sh->sc) |
694 | { | |
695 | case scRegister: | |
696 | /* Pass by value in register. */ | |
f1e6e072 | 697 | SYMBOL_ACLASS_INDEX (s) = mdebug_register_index; |
c906108c SS |
698 | break; |
699 | case scVar: | |
700 | /* Pass by reference on stack. */ | |
f1e6e072 | 701 | SYMBOL_ACLASS_INDEX (s) = LOC_REF_ARG; |
c906108c SS |
702 | break; |
703 | case scVarRegister: | |
704 | /* Pass by reference in register. */ | |
f1e6e072 | 705 | SYMBOL_ACLASS_INDEX (s) = mdebug_regparm_index; |
c906108c SS |
706 | break; |
707 | default: | |
708 | /* Pass by value on stack. */ | |
f1e6e072 | 709 | SYMBOL_ACLASS_INDEX (s) = LOC_ARG; |
c906108c SS |
710 | break; |
711 | } | |
712 | SYMBOL_VALUE (s) = svalue; | |
713 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
c7efd0b9 | 714 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
715 | break; |
716 | ||
025bb325 | 717 | case stLabel: /* label, goes into current block. */ |
c906108c | 718 | s = new_symbol (name); |
025bb325 | 719 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; /* So that it can be used */ |
f1e6e072 | 720 | SYMBOL_ACLASS_INDEX (s) = LOC_LABEL; /* but not misused. */ |
c906108c | 721 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
46bf5051 | 722 | SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_int; |
c7efd0b9 | 723 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
724 | break; |
725 | ||
025bb325 MS |
726 | case stProc: /* Procedure, usually goes into global block. */ |
727 | case stStaticProc: /* Static procedure, goes into current block. */ | |
1fb4c65b JB |
728 | /* For stProc symbol records, we need to check the storage class |
729 | as well, as only (stProc, scText) entries represent "real" | |
730 | procedures - See the Compaq document titled "Object File / | |
731 | Symbol Table Format Specification" for more information. | |
732 | If the storage class is not scText, we discard the whole block | |
733 | of symbol records for this stProc. */ | |
734 | if (sh->st == stProc && sh->sc != scText) | |
735 | { | |
736 | char *ext_tsym = ext_sh; | |
737 | int keep_counting = 1; | |
738 | SYMR tsym; | |
739 | ||
740 | while (keep_counting) | |
741 | { | |
742 | ext_tsym += external_sym_size; | |
743 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
744 | count++; | |
745 | switch (tsym.st) | |
746 | { | |
747 | case stParam: | |
748 | break; | |
749 | case stEnd: | |
750 | keep_counting = 0; | |
751 | break; | |
752 | default: | |
753 | complaint (&symfile_complaints, | |
e2e0b3e5 | 754 | _("unknown symbol type 0x%x"), sh->st); |
1fb4c65b JB |
755 | break; |
756 | } | |
757 | } | |
758 | break; | |
759 | } | |
c906108c | 760 | s = new_symbol (name); |
176620f1 | 761 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
f1e6e072 | 762 | SYMBOL_ACLASS_INDEX (s) = LOC_BLOCK; |
025bb325 | 763 | /* Type of the return value. */ |
c5aa993b | 764 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
46bf5051 | 765 | t = objfile_type (objfile)->builtin_int; |
c906108c SS |
766 | else |
767 | { | |
768 | t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name); | |
ee300cd4 AC |
769 | if (strcmp (name, "malloc") == 0 |
770 | && TYPE_CODE (t) == TYPE_CODE_VOID) | |
c906108c SS |
771 | { |
772 | /* I don't know why, but, at least under Alpha GNU/Linux, | |
c5aa993b JM |
773 | when linking against a malloc without debugging |
774 | symbols, its read as a function returning void---this | |
775 | is bad because it means we cannot call functions with | |
776 | string arguments interactively; i.e., "call | |
777 | printf("howdy\n")" would fail with the error message | |
778 | "program has no memory available". To avoid this, we | |
779 | patch up the type and make it void* | |
025bb325 | 780 | instead. (davidm@azstarnet.com). */ |
c906108c SS |
781 | t = make_pointer_type (t, NULL); |
782 | } | |
783 | } | |
784 | b = top_stack->cur_block; | |
785 | if (sh->st == stProc) | |
786 | { | |
439247b6 DE |
787 | const struct blockvector *bv |
788 | = SYMTAB_BLOCKVECTOR (top_stack->cur_st); | |
b8d56208 | 789 | |
c906108c SS |
790 | /* The next test should normally be true, but provides a |
791 | hook for nested functions (which we don't want to make | |
28397f59 | 792 | global). */ |
c906108c SS |
793 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
794 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
795 | /* Irix 5 sometimes has duplicate names for the same | |
796 | function. We want to add such names up at the global | |
797 | level, not as a nested function. */ | |
798 | else if (sh->value == top_stack->procadr) | |
799 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
800 | } | |
c7efd0b9 | 801 | add_symbol (s, top_stack->cur_st, b); |
c906108c | 802 | |
025bb325 | 803 | /* Make a type for the procedure itself. */ |
c906108c SS |
804 | SYMBOL_TYPE (s) = lookup_function_type (t); |
805 | ||
1e698235 DJ |
806 | /* All functions in C++ have prototypes. For C we don't have enough |
807 | information in the debug info. */ | |
808 | if (SYMBOL_LANGUAGE (s) == language_cplus) | |
876cecd0 | 809 | TYPE_PROTOTYPED (SYMBOL_TYPE (s)) = 1; |
1e698235 | 810 | |
025bb325 | 811 | /* Create and enter a new lexical context. */ |
5ffa0793 | 812 | b = new_block (FUNCTION_BLOCK, SYMBOL_LANGUAGE (s)); |
c906108c SS |
813 | SYMBOL_BLOCK_VALUE (s) = b; |
814 | BLOCK_FUNCTION (b) = s; | |
815 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
816 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
817 | add_block (b, top_stack->cur_st); | |
818 | ||
025bb325 | 819 | /* Not if we only have partial info. */ |
c5aa993b | 820 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
c906108c SS |
821 | break; |
822 | ||
823 | push_parse_stack (); | |
824 | top_stack->cur_block = b; | |
825 | top_stack->blocktype = sh->st; | |
826 | top_stack->cur_type = SYMBOL_TYPE (s); | |
827 | top_stack->cur_field = -1; | |
828 | top_stack->procadr = sh->value; | |
829 | top_stack->numargs = 0; | |
830 | break; | |
831 | ||
832 | /* Beginning of code for structure, union, and enum definitions. | |
c5aa993b | 833 | They all share a common set of local variables, defined here. */ |
c906108c SS |
834 | { |
835 | enum type_code type_code; | |
836 | char *ext_tsym; | |
837 | int nfields; | |
838 | long max_value; | |
839 | struct field *f; | |
840 | ||
025bb325 | 841 | case stStruct: /* Start a block defining a struct type. */ |
c906108c SS |
842 | type_code = TYPE_CODE_STRUCT; |
843 | goto structured_common; | |
844 | ||
025bb325 | 845 | case stUnion: /* Start a block defining a union type. */ |
c906108c SS |
846 | type_code = TYPE_CODE_UNION; |
847 | goto structured_common; | |
848 | ||
025bb325 | 849 | case stEnum: /* Start a block defining an enum type. */ |
c906108c SS |
850 | type_code = TYPE_CODE_ENUM; |
851 | goto structured_common; | |
852 | ||
025bb325 | 853 | case stBlock: /* Either a lexical block, or some type. */ |
c5aa993b | 854 | if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc)) |
c906108c SS |
855 | goto case_stBlock_code; /* Lexical block */ |
856 | ||
857 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
858 | ||
859 | /* Common code for handling struct, union, enum, and/or as-yet- | |
860 | unknown-type blocks of info about structured data. `type_code' | |
861 | has been set to the proper TYPE_CODE, if we know it. */ | |
862 | structured_common: | |
863 | found_ecoff_debugging_info = 1; | |
864 | push_parse_stack (); | |
865 | top_stack->blocktype = stBlock; | |
866 | ||
025bb325 | 867 | /* First count the number of fields and the highest value. */ |
c906108c SS |
868 | nfields = 0; |
869 | max_value = 0; | |
870 | for (ext_tsym = ext_sh + external_sym_size; | |
871 | ; | |
872 | ext_tsym += external_sym_size) | |
873 | { | |
874 | SYMR tsym; | |
875 | ||
876 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
877 | ||
878 | switch (tsym.st) | |
879 | { | |
880 | case stEnd: | |
f0394be6 | 881 | /* C++ encodes class types as structures where there the |
025bb325 | 882 | methods are encoded as stProc. The scope of stProc |
f0394be6 JB |
883 | symbols also ends with stEnd, thus creating a risk of |
884 | taking the wrong stEnd symbol record as the end of | |
885 | the current struct, which would cause GDB to undercount | |
886 | the real number of fields in this struct. To make sure | |
887 | we really reached the right stEnd symbol record, we | |
888 | check the associated name, and match it against the | |
889 | struct name. Since method names are mangled while | |
890 | the class name is not, there is no risk of having a | |
891 | method whose name is identical to the class name | |
892 | (in particular constructor method names are different | |
893 | from the class name). There is therefore no risk that | |
7bde8967 KB |
894 | this check stops the count on the StEnd of a method. |
895 | ||
896 | Also, assume that we're really at the end when tsym.iss | |
897 | is 0 (issNull). */ | |
898 | if (tsym.iss == issNull | |
899 | || strcmp (debug_info->ss + cur_fdr->issBase + tsym.iss, | |
900 | name) == 0) | |
f0394be6 JB |
901 | goto end_of_fields; |
902 | break; | |
c906108c SS |
903 | |
904 | case stMember: | |
905 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
906 | { |
907 | /* If the type of the member is Nil (or Void), | |
908 | without qualifiers, assume the tag is an | |
909 | enumeration. | |
910 | Alpha cc -migrate enums are recognized by a zero | |
911 | index and a zero symbol value. | |
912 | DU 4.0 cc enums are recognized by a member type of | |
913 | btEnum without qualifiers and a zero symbol value. */ | |
914 | if (tsym.index == indexNil | |
915 | || (tsym.index == 0 && sh->value == 0)) | |
916 | type_code = TYPE_CODE_ENUM; | |
917 | else | |
918 | { | |
919 | (*debug_swap->swap_tir_in) (bigend, | |
920 | &ax[tsym.index].a_ti, | |
921 | &tir); | |
922 | if ((tir.bt == btNil || tir.bt == btVoid | |
923 | || (tir.bt == btEnum && sh->value == 0)) | |
924 | && tir.tq0 == tqNil) | |
925 | type_code = TYPE_CODE_ENUM; | |
926 | } | |
927 | } | |
c906108c SS |
928 | nfields++; |
929 | if (tsym.value > max_value) | |
930 | max_value = tsym.value; | |
931 | break; | |
932 | ||
933 | case stBlock: | |
934 | case stUnion: | |
935 | case stEnum: | |
936 | case stStruct: | |
937 | { | |
938 | #if 0 | |
939 | /* This is a no-op; is it trying to tell us something | |
940 | we should be checking? */ | |
c5aa993b | 941 | if (tsym.sc == scVariant); /*UNIMPLEMENTED */ |
c906108c SS |
942 | #endif |
943 | if (tsym.index != 0) | |
944 | { | |
945 | /* This is something like a struct within a | |
c5aa993b JM |
946 | struct. Skip over the fields of the inner |
947 | struct. The -1 is because the for loop will | |
948 | increment ext_tsym. */ | |
c906108c SS |
949 | ext_tsym = ((char *) debug_info->external_sym |
950 | + ((cur_fdr->isymBase + tsym.index - 1) | |
951 | * external_sym_size)); | |
952 | } | |
953 | } | |
954 | break; | |
955 | ||
956 | case stTypedef: | |
957 | /* mips cc puts out a typedef for struct x if it is not yet | |
958 | defined when it encounters | |
959 | struct y { struct x *xp; }; | |
025bb325 | 960 | Just ignore it. */ |
c906108c SS |
961 | break; |
962 | ||
963 | case stIndirect: | |
964 | /* Irix5 cc puts out a stIndirect for struct x if it is not | |
965 | yet defined when it encounters | |
966 | struct y { struct x *xp; }; | |
025bb325 | 967 | Just ignore it. */ |
c906108c SS |
968 | break; |
969 | ||
970 | default: | |
23136709 | 971 | complaint (&symfile_complaints, |
3e43a32a MS |
972 | _("declaration block contains " |
973 | "unhandled symbol type %d"), | |
23136709 | 974 | tsym.st); |
c906108c SS |
975 | } |
976 | } | |
82ae4854 | 977 | end_of_fields: |
c906108c SS |
978 | |
979 | /* In an stBlock, there is no way to distinguish structs, | |
980 | unions, and enums at this point. This is a bug in the | |
981 | original design (that has been fixed with the recent | |
982 | addition of the stStruct, stUnion, and stEnum symbol | |
983 | types.) The way you can tell is if/when you see a variable | |
984 | or field of that type. In that case the variable's type | |
985 | (in the AUX table) says if the type is struct, union, or | |
986 | enum, and points back to the stBlock here. So you can | |
987 | patch the tag kind up later - but only if there actually is | |
988 | a variable or field of that type. | |
989 | ||
990 | So until we know for sure, we will guess at this point. | |
991 | The heuristic is: | |
992 | If the first member has index==indexNil or a void type, | |
993 | assume we have an enumeration. | |
994 | Otherwise, if there is more than one member, and all | |
995 | the members have offset 0, assume we have a union. | |
996 | Otherwise, assume we have a struct. | |
997 | ||
998 | The heuristic could guess wrong in the case of of an | |
999 | enumeration with no members or a union with one (or zero) | |
1000 | members, or when all except the last field of a struct have | |
1001 | width zero. These are uncommon and/or illegal situations, | |
1002 | and in any case guessing wrong probably doesn't matter | |
1003 | much. | |
1004 | ||
1005 | But if we later do find out we were wrong, we fixup the tag | |
1006 | kind. Members of an enumeration must be handled | |
1007 | differently from struct/union fields, and that is harder to | |
1008 | patch up, but luckily we shouldn't need to. (If there are | |
1009 | any enumeration members, we can tell for sure it's an enum | |
025bb325 | 1010 | here.) */ |
c906108c SS |
1011 | |
1012 | if (type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
1013 | { |
1014 | if (nfields > 1 && max_value == 0) | |
1015 | type_code = TYPE_CODE_UNION; | |
1016 | else | |
1017 | type_code = TYPE_CODE_STRUCT; | |
1018 | } | |
c906108c SS |
1019 | |
1020 | /* Create a new type or use the pending type. */ | |
1021 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1022 | if (pend == (struct mdebug_pending *) NULL) | |
1023 | { | |
1024 | t = new_type (NULL); | |
1025 | add_pending (cur_fdr, ext_sh, t); | |
1026 | } | |
1027 | else | |
1028 | t = pend->t; | |
1029 | ||
1030 | /* Do not set the tag name if it is a compiler generated tag name | |
1031 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. | |
1032 | Alpha cc puts out an sh->iss of zero for those. */ | |
1033 | if (sh->iss == 0 || name[0] == '.' || name[0] == '\0') | |
1034 | TYPE_TAG_NAME (t) = NULL; | |
1035 | else | |
dd707e8e | 1036 | TYPE_TAG_NAME (t) = obconcat (&mdebugread_objfile->objfile_obstack, |
3e43a32a | 1037 | name, (char *) NULL); |
c906108c SS |
1038 | |
1039 | TYPE_CODE (t) = type_code; | |
1040 | TYPE_LENGTH (t) = sh->value; | |
1041 | TYPE_NFIELDS (t) = nfields; | |
1042 | TYPE_FIELDS (t) = f = ((struct field *) | |
1043 | TYPE_ALLOC (t, | |
1044 | nfields * sizeof (struct field))); | |
1045 | ||
1046 | if (type_code == TYPE_CODE_ENUM) | |
1047 | { | |
1048 | int unsigned_enum = 1; | |
1049 | ||
025bb325 | 1050 | /* This is a non-empty enum. */ |
c906108c SS |
1051 | |
1052 | /* DEC c89 has the number of enumerators in the sh.value field, | |
1053 | not the type length, so we have to compensate for that | |
1054 | incompatibility quirk. | |
1055 | This might do the wrong thing for an enum with one or two | |
1056 | enumerators and gcc -gcoff -fshort-enums, but these cases | |
1057 | are hopefully rare enough. | |
1058 | Alpha cc -migrate has a sh.value field of zero, we adjust | |
1059 | that too. */ | |
1060 | if (TYPE_LENGTH (t) == TYPE_NFIELDS (t) | |
1061 | || TYPE_LENGTH (t) == 0) | |
5e2b427d | 1062 | TYPE_LENGTH (t) = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; |
c906108c SS |
1063 | for (ext_tsym = ext_sh + external_sym_size; |
1064 | ; | |
1065 | ext_tsym += external_sym_size) | |
1066 | { | |
1067 | SYMR tsym; | |
1068 | struct symbol *enum_sym; | |
1069 | ||
1070 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
1071 | ||
1072 | if (tsym.st != stMember) | |
1073 | break; | |
1074 | ||
14e75d8e | 1075 | SET_FIELD_ENUMVAL (*f, tsym.value); |
c906108c SS |
1076 | FIELD_TYPE (*f) = t; |
1077 | FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss; | |
1078 | FIELD_BITSIZE (*f) = 0; | |
1079 | ||
e623cf5d | 1080 | enum_sym = allocate_symbol (mdebugread_objfile); |
3567439c | 1081 | SYMBOL_SET_LINKAGE_NAME |
10f0c4bb | 1082 | (enum_sym, |
224c3ddb SM |
1083 | (char *) obstack_copy0 (&mdebugread_objfile->objfile_obstack, |
1084 | f->name, strlen (f->name))); | |
f1e6e072 | 1085 | SYMBOL_ACLASS_INDEX (enum_sym) = LOC_CONST; |
c906108c | 1086 | SYMBOL_TYPE (enum_sym) = t; |
176620f1 | 1087 | SYMBOL_DOMAIN (enum_sym) = VAR_DOMAIN; |
c906108c SS |
1088 | SYMBOL_VALUE (enum_sym) = tsym.value; |
1089 | if (SYMBOL_VALUE (enum_sym) < 0) | |
1090 | unsigned_enum = 0; | |
c7efd0b9 | 1091 | add_symbol (enum_sym, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1092 | |
025bb325 | 1093 | /* Skip the stMembers that we've handled. */ |
c906108c SS |
1094 | count++; |
1095 | f++; | |
1096 | } | |
1097 | if (unsigned_enum) | |
876cecd0 | 1098 | TYPE_UNSIGNED (t) = 1; |
c906108c | 1099 | } |
025bb325 | 1100 | /* Make this the current type. */ |
c906108c SS |
1101 | top_stack->cur_type = t; |
1102 | top_stack->cur_field = 0; | |
1103 | ||
1104 | /* Do not create a symbol for alpha cc unnamed structs. */ | |
1105 | if (sh->iss == 0) | |
1106 | break; | |
1107 | ||
1108 | /* gcc puts out an empty struct for an opaque struct definitions, | |
1109 | do not create a symbol for it either. */ | |
1110 | if (TYPE_NFIELDS (t) == 0) | |
1111 | { | |
876cecd0 | 1112 | TYPE_STUB (t) = 1; |
c906108c SS |
1113 | break; |
1114 | } | |
1115 | ||
1116 | s = new_symbol (name); | |
176620f1 | 1117 | SYMBOL_DOMAIN (s) = STRUCT_DOMAIN; |
f1e6e072 | 1118 | SYMBOL_ACLASS_INDEX (s) = LOC_TYPEDEF; |
c906108c SS |
1119 | SYMBOL_VALUE (s) = 0; |
1120 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1121 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1122 | break; |
1123 | ||
1124 | /* End of local variables shared by struct, union, enum, and | |
1125 | block (as yet unknown struct/union/enum) processing. */ | |
1126 | } | |
1127 | ||
1128 | case_stBlock_code: | |
1129 | found_ecoff_debugging_info = 1; | |
025bb325 MS |
1130 | /* Beginnning of (code) block. Value of symbol |
1131 | is the displacement from procedure start. */ | |
c906108c SS |
1132 | push_parse_stack (); |
1133 | ||
1134 | /* Do not start a new block if this is the outermost block of a | |
c5aa993b JM |
1135 | procedure. This allows the LOC_BLOCK symbol to point to the |
1136 | block with the local variables, so funcname::var works. */ | |
c906108c SS |
1137 | if (top_stack->blocktype == stProc |
1138 | || top_stack->blocktype == stStaticProc) | |
1139 | { | |
1140 | top_stack->blocktype = stNil; | |
1141 | break; | |
1142 | } | |
1143 | ||
1144 | top_stack->blocktype = stBlock; | |
5ffa0793 | 1145 | b = new_block (NON_FUNCTION_BLOCK, psymtab_language); |
c906108c SS |
1146 | BLOCK_START (b) = sh->value + top_stack->procadr; |
1147 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1148 | top_stack->cur_block = b; | |
1149 | add_block (b, top_stack->cur_st); | |
1150 | break; | |
1151 | ||
1152 | case stEnd: /* end (of anything) */ | |
c5aa993b | 1153 | if (sh->sc == scInfo || SC_IS_COMMON (sh->sc)) |
c906108c SS |
1154 | { |
1155 | /* Finished with type */ | |
1156 | top_stack->cur_type = 0; | |
1157 | } | |
1158 | else if (sh->sc == scText && | |
1159 | (top_stack->blocktype == stProc || | |
1160 | top_stack->blocktype == stStaticProc)) | |
1161 | { | |
1162 | /* Finished with procedure */ | |
439247b6 DE |
1163 | const struct blockvector *bv |
1164 | = SYMTAB_BLOCKVECTOR (top_stack->cur_st); | |
f92761ec | 1165 | struct mdebug_extra_func_info *e; |
de4f826b | 1166 | struct block *b = top_stack->cur_block; |
c906108c SS |
1167 | struct type *ftype = top_stack->cur_type; |
1168 | int i; | |
1169 | ||
1170 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1171 | ||
025bb325 | 1172 | /* Make up special symbol to contain procedure specific info. */ |
f92761ec | 1173 | s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
176620f1 | 1174 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
f1e6e072 | 1175 | SYMBOL_ACLASS_INDEX (s) = LOC_CONST; |
dd707e8e | 1176 | SYMBOL_TYPE (s) = objfile_type (mdebugread_objfile)->builtin_void; |
f92761ec | 1177 | e = ((struct mdebug_extra_func_info *) |
dd707e8e | 1178 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
f92761ec AC |
1179 | sizeof (struct mdebug_extra_func_info))); |
1180 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); | |
9918cab9 | 1181 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
1182 | e->numargs = top_stack->numargs; |
1183 | e->pdr.framereg = -1; | |
c7efd0b9 | 1184 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1185 | |
c906108c SS |
1186 | /* f77 emits proc-level with address bounds==[0,0], |
1187 | So look for such child blocks, and patch them. */ | |
1188 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
1189 | { | |
1190 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
b8d56208 | 1191 | |
c906108c SS |
1192 | if (BLOCK_SUPERBLOCK (b_bad) == b |
1193 | && BLOCK_START (b_bad) == top_stack->procadr | |
1194 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1195 | { | |
1196 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1197 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | if (TYPE_NFIELDS (ftype) <= 0) | |
1202 | { | |
1203 | /* No parameter type information is recorded with the function's | |
025bb325 | 1204 | type. Set that from the type of the parameter symbols. */ |
c906108c SS |
1205 | int nparams = top_stack->numargs; |
1206 | int iparams; | |
1207 | struct symbol *sym; | |
1208 | ||
1209 | if (nparams > 0) | |
1210 | { | |
8157b174 | 1211 | struct block_iterator iter; |
b8d56208 | 1212 | |
c906108c SS |
1213 | TYPE_NFIELDS (ftype) = nparams; |
1214 | TYPE_FIELDS (ftype) = (struct field *) | |
1215 | TYPE_ALLOC (ftype, nparams * sizeof (struct field)); | |
c5aa993b | 1216 | |
de4f826b DC |
1217 | iparams = 0; |
1218 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
c906108c | 1219 | { |
de4f826b DC |
1220 | if (iparams == nparams) |
1221 | break; | |
1222 | ||
2a2d4dc3 | 1223 | if (SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 1224 | { |
c906108c | 1225 | TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym); |
8176bb6d | 1226 | TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0; |
c906108c | 1227 | iparams++; |
c906108c SS |
1228 | } |
1229 | } | |
1230 | } | |
1231 | } | |
1232 | } | |
1233 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1234 | { | |
025bb325 | 1235 | /* End of (code) block. The value of the symbol is the |
c906108c | 1236 | displacement from the procedure`s start address of the |
025bb325 | 1237 | end of this block. */ |
c906108c | 1238 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
c906108c SS |
1239 | } |
1240 | else if (sh->sc == scText && top_stack->blocktype == stNil) | |
1241 | { | |
1242 | /* End of outermost block. Pop parse stack and ignore. The | |
1243 | following stEnd of stProc will take care of the block. */ | |
1244 | ; | |
1245 | } | |
1246 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1247 | { | |
1248 | /* End of file. Pop parse stack and ignore. Higher | |
1249 | level code deals with this. */ | |
1250 | ; | |
1251 | } | |
1252 | else | |
23136709 | 1253 | complaint (&symfile_complaints, |
e2e0b3e5 | 1254 | _("stEnd with storage class %d not handled"), sh->sc); |
c906108c | 1255 | |
025bb325 | 1256 | pop_parse_stack (); /* Restore previous lexical context. */ |
c906108c SS |
1257 | break; |
1258 | ||
1259 | case stMember: /* member of struct or union */ | |
1260 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
1261 | FIELD_NAME (*f) = name; | |
d6a843b5 | 1262 | SET_FIELD_BITPOS (*f, sh->value); |
c906108c | 1263 | bitsize = 0; |
3e43a32a MS |
1264 | FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, |
1265 | &bitsize, bigend, name); | |
c906108c SS |
1266 | FIELD_BITSIZE (*f) = bitsize; |
1267 | break; | |
1268 | ||
1269 | case stIndirect: /* forward declaration on Irix5 */ | |
1270 | /* Forward declarations from Irix5 cc are handled by cross_ref, | |
c5aa993b | 1271 | skip them. */ |
c906108c SS |
1272 | break; |
1273 | ||
1274 | case stTypedef: /* type definition */ | |
1275 | found_ecoff_debugging_info = 1; | |
1276 | ||
1277 | /* Typedefs for forward declarations and opaque structs from alpha cc | |
c5aa993b | 1278 | are handled by cross_ref, skip them. */ |
c906108c SS |
1279 | if (sh->iss == 0) |
1280 | break; | |
1281 | ||
1282 | /* Parse the type or use the pending type. */ | |
1283 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1284 | if (pend == (struct mdebug_pending *) NULL) | |
1285 | { | |
c5aa993b | 1286 | t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name); |
c906108c SS |
1287 | add_pending (cur_fdr, ext_sh, t); |
1288 | } | |
1289 | else | |
1290 | t = pend->t; | |
1291 | ||
025bb325 MS |
1292 | /* Mips cc puts out a typedef with the name of the struct for forward |
1293 | declarations. These should not go into the symbol table and | |
c5aa993b JM |
1294 | TYPE_NAME should not be set for them. |
1295 | They can't be distinguished from an intentional typedef to | |
1296 | the same name however: | |
1297 | x.h: | |
1298 | struct x { int ix; int jx; }; | |
1299 | struct xx; | |
1300 | x.c: | |
1301 | typedef struct x x; | |
1302 | struct xx {int ixx; int jxx; }; | |
1303 | generates a cross referencing stTypedef for x and xx. | |
1304 | The user visible effect of this is that the type of a pointer | |
1305 | to struct foo sometimes is given as `foo *' instead of `struct foo *'. | |
1306 | The problem is fixed with alpha cc and Irix5 cc. */ | |
c906108c SS |
1307 | |
1308 | /* However if the typedef cross references to an opaque aggregate, it | |
c5aa993b | 1309 | is safe to omit it from the symbol table. */ |
c906108c SS |
1310 | |
1311 | if (has_opaque_xref (cur_fdr, sh)) | |
1312 | break; | |
1313 | s = new_symbol (name); | |
176620f1 | 1314 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
f1e6e072 | 1315 | SYMBOL_ACLASS_INDEX (s) = LOC_TYPEDEF; |
c906108c SS |
1316 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; |
1317 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1318 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1319 | |
1320 | /* Incomplete definitions of structs should not get a name. */ | |
1321 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1322 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
c5aa993b | 1323 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT |
c906108c SS |
1324 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) |
1325 | { | |
1326 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1327 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1328 | { | |
1329 | /* If we are giving a name to a type such as "pointer to | |
c5aa993b JM |
1330 | foo" or "function returning foo", we better not set |
1331 | the TYPE_NAME. If the program contains "typedef char | |
1332 | *caddr_t;", we don't want all variables of type char | |
1333 | * to print as caddr_t. This is not just a | |
1334 | consequence of GDB's type management; CC and GCC (at | |
1335 | least through version 2.4) both output variables of | |
1336 | either type char * or caddr_t with the type | |
1337 | refering to the stTypedef symbol for caddr_t. If a future | |
1338 | compiler cleans this up it GDB is not ready for it | |
1339 | yet, but if it becomes ready we somehow need to | |
1340 | disable this check (without breaking the PCC/GCC2.4 | |
1341 | case). | |
1342 | ||
1343 | Sigh. | |
1344 | ||
1345 | Fortunately, this check seems not to be necessary | |
1346 | for anything except pointers or functions. */ | |
c906108c SS |
1347 | } |
1348 | else | |
3567439c | 1349 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_LINKAGE_NAME (s); |
c906108c SS |
1350 | } |
1351 | break; | |
1352 | ||
1353 | case stFile: /* file name */ | |
1354 | push_parse_stack (); | |
1355 | top_stack->blocktype = sh->st; | |
1356 | break; | |
1357 | ||
1358 | /* I`ve never seen these for C */ | |
1359 | case stRegReloc: | |
1360 | break; /* register relocation */ | |
1361 | case stForward: | |
1362 | break; /* forwarding address */ | |
1363 | case stConstant: | |
1364 | break; /* constant */ | |
1365 | default: | |
e2e0b3e5 | 1366 | complaint (&symfile_complaints, _("unknown symbol type 0x%x"), sh->st); |
c906108c SS |
1367 | break; |
1368 | } | |
1369 | ||
1370 | return count; | |
1371 | } | |
1372 | ||
0a9d309a UW |
1373 | /* Basic types. */ |
1374 | ||
1375 | static const struct objfile_data *basic_type_data; | |
1376 | ||
1377 | static struct type * | |
1378 | basic_type (int bt, struct objfile *objfile) | |
1379 | { | |
1380 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
19ba03f4 SM |
1381 | struct type **map_bt |
1382 | = (struct type **) objfile_data (objfile, basic_type_data); | |
0a9d309a UW |
1383 | struct type *tp; |
1384 | ||
1385 | if (bt >= btMax) | |
1386 | return NULL; | |
1387 | ||
1388 | if (!map_bt) | |
1389 | { | |
1390 | map_bt = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
1391 | btMax, struct type *); | |
1392 | set_objfile_data (objfile, basic_type_data, map_bt); | |
1393 | } | |
1394 | ||
1395 | if (map_bt[bt]) | |
1396 | return map_bt[bt]; | |
1397 | ||
1398 | switch (bt) | |
1399 | { | |
1400 | case btNil: | |
46bf5051 | 1401 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1402 | break; |
1403 | ||
1404 | case btAdr: | |
19f392bc UW |
1405 | tp = init_pointer_type (objfile, 32, "adr_32", |
1406 | objfile_type (objfile)->builtin_void); | |
0a9d309a UW |
1407 | break; |
1408 | ||
1409 | case btChar: | |
19f392bc | 1410 | tp = init_integer_type (objfile, 8, 0, "char"); |
c413c448 | 1411 | TYPE_NOSIGN (tp) = 1; |
0a9d309a UW |
1412 | break; |
1413 | ||
1414 | case btUChar: | |
19f392bc | 1415 | tp = init_integer_type (objfile, 8, 1, "unsigned char"); |
0a9d309a UW |
1416 | break; |
1417 | ||
1418 | case btShort: | |
19f392bc | 1419 | tp = init_integer_type (objfile, 16, 0, "short"); |
0a9d309a UW |
1420 | break; |
1421 | ||
1422 | case btUShort: | |
19f392bc | 1423 | tp = init_integer_type (objfile, 16, 1, "unsigned short"); |
0a9d309a UW |
1424 | break; |
1425 | ||
1426 | case btInt: | |
19f392bc | 1427 | tp = init_integer_type (objfile, 32, 0, "int"); |
0a9d309a UW |
1428 | break; |
1429 | ||
1430 | case btUInt: | |
19f392bc | 1431 | tp = init_integer_type (objfile, 32, 1, "unsigned int"); |
0a9d309a UW |
1432 | break; |
1433 | ||
1434 | case btLong: | |
19f392bc | 1435 | tp = init_integer_type (objfile, 32, 0, "long"); |
0a9d309a UW |
1436 | break; |
1437 | ||
1438 | case btULong: | |
19f392bc | 1439 | tp = init_integer_type (objfile, 32, 1, "unsigned long"); |
0a9d309a UW |
1440 | break; |
1441 | ||
1442 | case btFloat: | |
19f392bc | 1443 | tp = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
49f190bc | 1444 | "float", gdbarch_float_format (gdbarch)); |
0a9d309a UW |
1445 | break; |
1446 | ||
1447 | case btDouble: | |
19f392bc | 1448 | tp = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
49f190bc | 1449 | "double", gdbarch_double_format (gdbarch)); |
0a9d309a UW |
1450 | break; |
1451 | ||
1452 | case btComplex: | |
19f392bc UW |
1453 | tp = init_complex_type (objfile, "complex", |
1454 | basic_type (btFloat, objfile)); | |
0a9d309a UW |
1455 | break; |
1456 | ||
1457 | case btDComplex: | |
19f392bc UW |
1458 | tp = init_complex_type (objfile, "double complex", |
1459 | basic_type (btFloat, objfile)); | |
0a9d309a UW |
1460 | break; |
1461 | ||
1462 | case btFixedDec: | |
1463 | /* We use TYPE_CODE_INT to print these as integers. Does this do any | |
1464 | good? Would we be better off with TYPE_CODE_ERROR? Should | |
1465 | TYPE_CODE_ERROR print things in hex if it knows the size? */ | |
19f392bc UW |
1466 | tp = init_integer_type (objfile, gdbarch_int_bit (gdbarch), 0, |
1467 | "fixed decimal"); | |
0a9d309a UW |
1468 | break; |
1469 | ||
1470 | case btFloatDec: | |
19f392bc | 1471 | tp = init_type (objfile, TYPE_CODE_ERROR, |
77b7c781 | 1472 | gdbarch_double_bit (gdbarch), "floating decimal"); |
0a9d309a UW |
1473 | break; |
1474 | ||
1475 | case btString: | |
1476 | /* Is a "string" the way btString means it the same as TYPE_CODE_STRING? | |
1477 | FIXME. */ | |
77b7c781 | 1478 | tp = init_type (objfile, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
0a9d309a UW |
1479 | break; |
1480 | ||
1481 | case btVoid: | |
46bf5051 | 1482 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1483 | break; |
1484 | ||
1485 | case btLong64: | |
19f392bc | 1486 | tp = init_integer_type (objfile, 64, 0, "long"); |
0a9d309a UW |
1487 | break; |
1488 | ||
1489 | case btULong64: | |
19f392bc | 1490 | tp = init_integer_type (objfile, 64, 1, "unsigned long"); |
0a9d309a UW |
1491 | break; |
1492 | ||
1493 | case btLongLong64: | |
19f392bc | 1494 | tp = init_integer_type (objfile, 64, 0, "long long"); |
0a9d309a UW |
1495 | break; |
1496 | ||
1497 | case btULongLong64: | |
19f392bc | 1498 | tp = init_integer_type (objfile, 64, 1, "unsigned long long"); |
0a9d309a UW |
1499 | break; |
1500 | ||
1501 | case btAdr64: | |
19f392bc UW |
1502 | tp = init_pointer_type (objfile, 64, "adr_64", |
1503 | objfile_type (objfile)->builtin_void); | |
0a9d309a UW |
1504 | break; |
1505 | ||
1506 | case btInt64: | |
19f392bc | 1507 | tp = init_integer_type (objfile, 64, 0, "int"); |
0a9d309a UW |
1508 | break; |
1509 | ||
1510 | case btUInt64: | |
19f392bc | 1511 | tp = init_integer_type (objfile, 64, 1, "unsigned int"); |
0a9d309a UW |
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 | 1529 | parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs, |
a121b7c1 | 1530 | int bigend, const 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 | { | |
a121b7c1 | 1658 | const char *name; |
c906108c SS |
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) | |
19f392bc | 1663 | tp = init_type (mdebugread_objfile, type_code, 0, NULL); |
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 | 1705 | TYPE_TAG_NAME (tp) |
224c3ddb SM |
1706 | = ((const char *) |
1707 | obstack_copy0 (&mdebugread_objfile->objfile_obstack, | |
1708 | name, strlen (name))); | |
c906108c SS |
1709 | } |
1710 | } | |
1711 | ||
1712 | /* All these types really point to some (common) MIPS type | |
1713 | definition, and only the type-qualifiers fully identify | |
1714 | them. We'll make the same effort at sharing. | |
1715 | FIXME: We are not doing any guessing on range types. */ | |
1716 | if (t->bt == btRange) | |
1717 | { | |
a121b7c1 | 1718 | const char *name; |
c906108c SS |
1719 | |
1720 | /* Try to cross reference this type, build new type on failure. */ | |
1721 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1722 | if (tp == (struct type *) NULL) | |
19f392bc | 1723 | tp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
1724 | |
1725 | /* Make sure that TYPE_CODE(tp) has an expected type code. | |
c5aa993b JM |
1726 | Any type may be returned from cross_ref if file indirect entries |
1727 | are corrupted. */ | |
c906108c SS |
1728 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) |
1729 | { | |
23136709 | 1730 | unexpected_type_code_complaint (sym_name); |
c906108c SS |
1731 | } |
1732 | else | |
1733 | { | |
1734 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
025bb325 | 1735 | exception is if we guessed wrong re struct/union/enum. */ |
c906108c SS |
1736 | if (TYPE_CODE (tp) != type_code) |
1737 | { | |
23136709 | 1738 | bad_tag_guess_complaint (sym_name); |
c906108c SS |
1739 | TYPE_CODE (tp) = type_code; |
1740 | } | |
ee300cd4 AC |
1741 | if (TYPE_NAME (tp) == NULL |
1742 | || strcmp (TYPE_NAME (tp), name) != 0) | |
10f0c4bb | 1743 | TYPE_NAME (tp) |
224c3ddb SM |
1744 | = ((const char *) |
1745 | obstack_copy0 (&mdebugread_objfile->objfile_obstack, | |
1746 | name, strlen (name))); | |
c906108c SS |
1747 | } |
1748 | } | |
1749 | if (t->bt == btTypedef) | |
1750 | { | |
a121b7c1 | 1751 | const char *name; |
c906108c SS |
1752 | |
1753 | /* Try to cross reference this type, it should succeed. */ | |
1754 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1755 | if (tp == (struct type *) NULL) | |
1756 | { | |
23136709 | 1757 | complaint (&symfile_complaints, |
e2e0b3e5 | 1758 | _("unable to cross ref btTypedef for %s"), sym_name); |
dd707e8e | 1759 | tp = basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1760 | } |
1761 | } | |
1762 | ||
025bb325 | 1763 | /* Deal with range types. */ |
c906108c SS |
1764 | if (t->bt == btRange) |
1765 | { | |
43bbcdc2 PH |
1766 | TYPE_NFIELDS (tp) = 0; |
1767 | TYPE_RANGE_DATA (tp) = ((struct range_bounds *) | |
1768 | TYPE_ZALLOC (tp, sizeof (struct range_bounds))); | |
262452ec | 1769 | TYPE_LOW_BOUND (tp) = AUX_GET_DNLOW (bigend, ax); |
c906108c | 1770 | ax++; |
262452ec | 1771 | TYPE_HIGH_BOUND (tp) = AUX_GET_DNHIGH (bigend, ax); |
c906108c SS |
1772 | ax++; |
1773 | } | |
1774 | ||
025bb325 MS |
1775 | /* Parse all the type qualifiers now. If there are more |
1776 | than 6 the game will continue in the next aux. */ | |
c906108c SS |
1777 | |
1778 | while (1) | |
1779 | { | |
1780 | #define PARSE_TQ(tq) \ | |
1781 | if (t->tq != tqNil) \ | |
1782 | ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \ | |
1783 | else \ | |
1784 | break; | |
1785 | ||
1786 | PARSE_TQ (tq0); | |
1787 | PARSE_TQ (tq1); | |
1788 | PARSE_TQ (tq2); | |
1789 | PARSE_TQ (tq3); | |
1790 | PARSE_TQ (tq4); | |
1791 | PARSE_TQ (tq5); | |
1792 | #undef PARSE_TQ | |
1793 | ||
1794 | /* mips cc 2.x and gcc never put out continued aux entries. */ | |
1795 | if (!t->continued) | |
1796 | break; | |
1797 | ||
1798 | (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t); | |
1799 | ax++; | |
1800 | } | |
1801 | ||
1802 | /* Complain for illegal continuations due to corrupt aux entries. */ | |
1803 | if (t->continued) | |
3e43a32a MS |
1804 | complaint (&symfile_complaints, |
1805 | _("illegal TIR continued for %s"), sym_name); | |
c5aa993b | 1806 | |
c906108c SS |
1807 | return tp; |
1808 | } | |
1809 | ||
1810 | /* Make up a complex type from a basic one. Type is passed by | |
025bb325 | 1811 | reference in TPP and side-effected as necessary. The type |
c906108c SS |
1812 | qualifier TQ says how to handle the aux symbols at AX for |
1813 | the symbol SX we are currently analyzing. BIGEND says whether | |
1814 | aux symbols are big-endian or little-endian. | |
025bb325 | 1815 | Returns the number of aux symbols we parsed. */ |
c906108c SS |
1816 | |
1817 | static int | |
fba45db2 | 1818 | upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend, |
a121b7c1 | 1819 | const char *sym_name) |
c906108c SS |
1820 | { |
1821 | int off; | |
1822 | struct type *t; | |
1823 | ||
025bb325 | 1824 | /* Used in array processing. */ |
c906108c SS |
1825 | int rf, id; |
1826 | FDR *fh; | |
1827 | struct type *range; | |
1828 | struct type *indx; | |
1829 | int lower, upper; | |
1830 | RNDXR rndx; | |
1831 | ||
1832 | switch (tq) | |
1833 | { | |
1834 | case tqPtr: | |
1835 | t = lookup_pointer_type (*tpp); | |
1836 | *tpp = t; | |
1837 | return 0; | |
1838 | ||
1839 | case tqProc: | |
1840 | t = lookup_function_type (*tpp); | |
1841 | *tpp = t; | |
1842 | return 0; | |
1843 | ||
1844 | case tqArray: | |
1845 | off = 0; | |
1846 | ||
025bb325 | 1847 | /* Determine and record the domain type (type of index). */ |
c906108c SS |
1848 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx); |
1849 | id = rndx.index; | |
1850 | rf = rndx.rfd; | |
1851 | if (rf == 0xfff) | |
1852 | { | |
1853 | ax++; | |
1854 | rf = AUX_GET_ISYM (bigend, ax); | |
1855 | off++; | |
1856 | } | |
1857 | fh = get_rfd (fd, rf); | |
1858 | ||
1859 | indx = parse_type (fh - debug_info->fdr, | |
1860 | debug_info->external_aux + fh->iauxBase, | |
1861 | id, (int *) NULL, bigend, sym_name); | |
1862 | ||
1863 | /* The bounds type should be an integer type, but might be anything | |
c5aa993b | 1864 | else due to corrupt aux entries. */ |
c906108c SS |
1865 | if (TYPE_CODE (indx) != TYPE_CODE_INT) |
1866 | { | |
23136709 | 1867 | complaint (&symfile_complaints, |
3e43a32a MS |
1868 | _("illegal array index type for %s, assuming int"), |
1869 | sym_name); | |
dd707e8e | 1870 | indx = objfile_type (mdebugread_objfile)->builtin_int; |
c906108c SS |
1871 | } |
1872 | ||
1873 | /* Get the bounds, and create the array type. */ | |
1874 | ax++; | |
1875 | lower = AUX_GET_DNLOW (bigend, ax); | |
1876 | ax++; | |
1877 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1878 | ax++; | |
1879 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1880 | ||
0c9c3474 SA |
1881 | range = create_static_range_type ((struct type *) NULL, indx, |
1882 | lower, upper); | |
c906108c SS |
1883 | |
1884 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1885 | ||
1886 | /* We used to fill in the supplied array element bitsize | |
c5aa993b JM |
1887 | here if the TYPE_LENGTH of the target type was zero. |
1888 | This happens for a `pointer to an array of anonymous structs', | |
1889 | but in this case the array element bitsize is also zero, | |
1890 | so nothing is gained. | |
1891 | And we used to check the TYPE_LENGTH of the target type against | |
1892 | the supplied array element bitsize. | |
1893 | gcc causes a mismatch for `pointer to array of object', | |
1894 | since the sdb directives it uses do not have a way of | |
1895 | specifying the bitsize, but it does no harm (the | |
1896 | TYPE_LENGTH should be correct) and we should be able to | |
1897 | ignore the erroneous bitsize from the auxiliary entry safely. | |
1898 | dbx seems to ignore it too. */ | |
c906108c | 1899 | |
d6a843b5 | 1900 | /* TYPE_TARGET_STUB now takes care of the zero TYPE_LENGTH problem. */ |
c906108c | 1901 | if (TYPE_LENGTH (*tpp) == 0) |
d6a843b5 | 1902 | TYPE_TARGET_STUB (t) = 1; |
c906108c SS |
1903 | |
1904 | *tpp = t; | |
1905 | return 4 + off; | |
1906 | ||
1907 | case tqVol: | |
1908 | /* Volatile -- currently ignored */ | |
1909 | return 0; | |
1910 | ||
1911 | case tqConst: | |
1912 | /* Const -- currently ignored */ | |
1913 | return 0; | |
1914 | ||
1915 | default: | |
e2e0b3e5 | 1916 | complaint (&symfile_complaints, _("unknown type qualifier 0x%x"), tq); |
c906108c SS |
1917 | return 0; |
1918 | } | |
1919 | } | |
1920 | ||
1921 | ||
1922 | /* Parse a procedure descriptor record PR. Note that the procedure is | |
1923 | parsed _after_ the local symbols, now we just insert the extra | |
f92761ec | 1924 | information we need into a MDEBUG_EFI_SYMBOL_NAME symbol that has |
c906108c SS |
1925 | already been placed in the procedure's main block. Note also that |
1926 | images that have been partially stripped (ld -x) have been deprived | |
1927 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1928 | the offset of the first procedure for this FDR; we adjust the | |
1929 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab | |
f92761ec | 1930 | to look for the function which contains the MDEBUG_EFI_SYMBOL_NAME symbol |
c906108c SS |
1931 | in question, or NULL to use top_stack->cur_block. */ |
1932 | ||
c906108c | 1933 | static void |
43f3e411 | 1934 | parse_procedure (PDR *pr, struct compunit_symtab *search_symtab, |
fba45db2 | 1935 | struct partial_symtab *pst) |
c906108c SS |
1936 | { |
1937 | struct symbol *s, *i; | |
3977b71f | 1938 | const struct block *b; |
c906108c SS |
1939 | char *sh_name; |
1940 | ||
025bb325 | 1941 | /* Simple rule to find files linked "-x". */ |
c906108c SS |
1942 | if (cur_fdr->rss == -1) |
1943 | { | |
1944 | if (pr->isym == -1) | |
1945 | { | |
025bb325 | 1946 | /* Static procedure at address pr->adr. Sigh. */ |
c906108c | 1947 | /* FIXME-32x64. assuming pr->adr fits in long. */ |
23136709 | 1948 | complaint (&symfile_complaints, |
e2e0b3e5 | 1949 | _("can't handle PDR for static proc at 0x%lx"), |
23136709 | 1950 | (unsigned long) pr->adr); |
c906108c SS |
1951 | return; |
1952 | } | |
1953 | else | |
1954 | { | |
1955 | /* external */ | |
1956 | EXTR she; | |
c5aa993b | 1957 | |
c906108c SS |
1958 | (*debug_swap->swap_ext_in) (cur_bfd, |
1959 | ((char *) debug_info->external_ext | |
1960 | + (pr->isym | |
1961 | * debug_swap->external_ext_size)), | |
1962 | &she); | |
1963 | sh_name = debug_info->ssext + she.asym.iss; | |
1964 | } | |
1965 | } | |
1966 | else | |
1967 | { | |
1968 | /* Full symbols */ | |
1969 | SYMR sh; | |
1970 | ||
1971 | (*debug_swap->swap_sym_in) (cur_bfd, | |
1972 | ((char *) debug_info->external_sym | |
1973 | + ((cur_fdr->isymBase + pr->isym) | |
1974 | * debug_swap->external_sym_size)), | |
1975 | &sh); | |
1976 | sh_name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
1977 | } | |
1978 | ||
1979 | if (search_symtab != NULL) | |
1980 | { | |
1981 | #if 0 | |
1982 | /* This loses both in the case mentioned (want a static, find a global), | |
c5aa993b JM |
1983 | but also if we are looking up a non-mangled name which happens to |
1984 | match the name of a mangled function. */ | |
c906108c | 1985 | /* We have to save the cur_fdr across the call to lookup_symbol. |
c5aa993b JM |
1986 | If the pdr is for a static function and if a global function with |
1987 | the same name exists, lookup_symbol will eventually read in the symtab | |
1988 | for the global function and clobber cur_fdr. */ | |
c906108c | 1989 | FDR *save_cur_fdr = cur_fdr; |
b8d56208 | 1990 | |
2570f2b7 | 1991 | s = lookup_symbol (sh_name, NULL, VAR_DOMAIN, 0); |
c906108c SS |
1992 | cur_fdr = save_cur_fdr; |
1993 | #else | |
1994 | s = mylookup_symbol | |
1995 | (sh_name, | |
43f3e411 DE |
1996 | BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (search_symtab), |
1997 | STATIC_BLOCK), | |
176620f1 | 1998 | VAR_DOMAIN, |
c906108c SS |
1999 | LOC_BLOCK); |
2000 | #endif | |
2001 | } | |
2002 | else | |
2003 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
176620f1 | 2004 | VAR_DOMAIN, LOC_BLOCK); |
c906108c SS |
2005 | |
2006 | if (s != 0) | |
2007 | { | |
2008 | b = SYMBOL_BLOCK_VALUE (s); | |
2009 | } | |
2010 | else | |
2011 | { | |
e2e0b3e5 | 2012 | complaint (&symfile_complaints, _("PDR for %s, but no symbol"), sh_name); |
c906108c SS |
2013 | #if 1 |
2014 | return; | |
2015 | #else | |
2016 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ | |
2017 | s = new_symbol (sh_name); | |
176620f1 | 2018 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c | 2019 | SYMBOL_CLASS (s) = LOC_BLOCK; |
025bb325 | 2020 | /* Donno its type, hope int is ok. */ |
0a9d309a | 2021 | SYMBOL_TYPE (s) |
46bf5051 | 2022 | = lookup_function_type (objfile_type (pst->objfile)->builtin_int); |
c7efd0b9 | 2023 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
025bb325 | 2024 | /* Won't have symbols for this one. */ |
c906108c SS |
2025 | b = new_block (2); |
2026 | SYMBOL_BLOCK_VALUE (s) = b; | |
2027 | BLOCK_FUNCTION (b) = s; | |
2028 | BLOCK_START (b) = pr->adr; | |
2029 | /* BOUND used to be the end of procedure's text, but the | |
c5aa993b | 2030 | argument is no longer passed in. */ |
c906108c SS |
2031 | BLOCK_END (b) = bound; |
2032 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
2033 | add_block (b, top_stack->cur_st); | |
2034 | #endif | |
2035 | } | |
2036 | ||
f92761ec | 2037 | i = mylookup_symbol (MDEBUG_EFI_SYMBOL_NAME, b, LABEL_DOMAIN, LOC_CONST); |
c906108c SS |
2038 | |
2039 | if (i) | |
2040 | { | |
9918cab9 JB |
2041 | struct mdebug_extra_func_info *e; |
2042 | ||
2043 | e = (struct mdebug_extra_func_info *) SYMBOL_VALUE_BYTES (i); | |
c906108c | 2044 | e->pdr = *pr; |
c906108c SS |
2045 | |
2046 | /* GDB expects the absolute function start address for the | |
c5aa993b JM |
2047 | procedure descriptor in e->pdr.adr. |
2048 | As the address in the procedure descriptor is usually relative, | |
2049 | we would have to relocate e->pdr.adr with cur_fdr->adr and | |
b8fbeb18 | 2050 | ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)). |
c5aa993b JM |
2051 | Unfortunately cur_fdr->adr and e->pdr.adr are both absolute |
2052 | in shared libraries on some systems, and on other systems | |
2053 | e->pdr.adr is sometimes offset by a bogus value. | |
2054 | To work around these problems, we replace e->pdr.adr with | |
2055 | the start address of the function. */ | |
c906108c | 2056 | e->pdr.adr = BLOCK_START (b); |
c906108c SS |
2057 | } |
2058 | ||
2059 | /* It would be reasonable that functions that have been compiled | |
2060 | without debugging info have a btNil type for their return value, | |
2061 | and functions that are void and are compiled with debugging info | |
2062 | have btVoid. | |
2063 | gcc and DEC f77 put out btNil types for both cases, so btNil is mapped | |
2064 | to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info' | |
2065 | case right. | |
2066 | The glevel field in cur_fdr could be used to determine the presence | |
2067 | of debugging info, but GCC doesn't always pass the -g switch settings | |
2068 | to the assembler and GAS doesn't set the glevel field from the -g switch | |
2069 | settings. | |
2070 | To work around these problems, the return value type of a TYPE_CODE_VOID | |
2071 | function is adjusted accordingly if no debugging info was found in the | |
2072 | compilation unit. */ | |
c5aa993b | 2073 | |
c906108c SS |
2074 | if (processing_gcc_compilation == 0 |
2075 | && found_ecoff_debugging_info == 0 | |
2076 | && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID) | |
5c80ed9d | 2077 | SYMBOL_TYPE (s) = objfile_type (mdebugread_objfile)->nodebug_text_symbol; |
c906108c SS |
2078 | } |
2079 | ||
025bb325 | 2080 | /* Parse the external symbol ES. Just call parse_symbol() after |
c906108c SS |
2081 | making sure we know where the aux are for it. |
2082 | BIGEND says whether aux entries are big-endian or little-endian. | |
2083 | ||
025bb325 | 2084 | This routine clobbers top_stack->cur_block and ->cur_st. */ |
c906108c | 2085 | |
a14ed312 KB |
2086 | static void parse_external (EXTR *, int, struct section_offsets *, |
2087 | struct objfile *); | |
c906108c SS |
2088 | |
2089 | static void | |
fba45db2 KB |
2090 | parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets, |
2091 | struct objfile *objfile) | |
c906108c SS |
2092 | { |
2093 | union aux_ext *ax; | |
2094 | ||
2095 | if (es->ifd != ifdNil) | |
2096 | { | |
2097 | cur_fd = es->ifd; | |
2098 | cur_fdr = debug_info->fdr + cur_fd; | |
2099 | ax = debug_info->external_aux + cur_fdr->iauxBase; | |
2100 | } | |
2101 | else | |
2102 | { | |
2103 | cur_fdr = debug_info->fdr; | |
2104 | ax = 0; | |
2105 | } | |
2106 | ||
2107 | /* Reading .o files */ | |
c5aa993b | 2108 | if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil) |
c906108c | 2109 | { |
a121b7c1 | 2110 | const char *what; |
c906108c SS |
2111 | switch (es->asym.st) |
2112 | { | |
2113 | case stNil: | |
2114 | /* These are generated for static symbols in .o files, | |
2115 | ignore them. */ | |
2116 | return; | |
2117 | case stStaticProc: | |
2118 | case stProc: | |
2119 | what = "procedure"; | |
2120 | n_undef_procs++; | |
2121 | break; | |
2122 | case stGlobal: | |
2123 | what = "variable"; | |
2124 | n_undef_vars++; | |
2125 | break; | |
2126 | case stLabel: | |
2127 | what = "label"; | |
2128 | n_undef_labels++; | |
2129 | break; | |
2130 | default: | |
2131 | what = "symbol"; | |
2132 | break; | |
2133 | } | |
2134 | n_undef_symbols++; | |
025bb325 | 2135 | /* FIXME: Turn this into a complaint? */ |
c906108c | 2136 | if (info_verbose) |
a3f17187 | 2137 | printf_filtered (_("Warning: %s `%s' is undefined (in %s)\n"), |
c906108c SS |
2138 | what, debug_info->ssext + es->asym.iss, |
2139 | fdr_name (cur_fdr)); | |
2140 | return; | |
2141 | } | |
2142 | ||
2143 | switch (es->asym.st) | |
2144 | { | |
2145 | case stProc: | |
2146 | case stStaticProc: | |
2147 | /* There is no need to parse the external procedure symbols. | |
c5aa993b JM |
2148 | If they are from objects compiled without -g, their index will |
2149 | be indexNil, and the symbol definition from the minimal symbol | |
2150 | is preferrable (yielding a function returning int instead of int). | |
2151 | If the index points to a local procedure symbol, the local | |
2152 | symbol already provides the correct type. | |
2153 | Note that the index of the external procedure symbol points | |
2154 | to the local procedure symbol in the local symbol table, and | |
2155 | _not_ to the auxiliary symbol info. */ | |
c906108c SS |
2156 | break; |
2157 | case stGlobal: | |
2158 | case stLabel: | |
2159 | /* Global common symbols are resolved by the runtime loader, | |
c5aa993b JM |
2160 | ignore them. */ |
2161 | if (SC_IS_COMMON (es->asym.sc)) | |
c906108c SS |
2162 | break; |
2163 | ||
2164 | /* Note that the case of a symbol with indexNil must be handled | |
c5aa993b | 2165 | anyways by parse_symbol(). */ |
3e43a32a MS |
2166 | parse_symbol (&es->asym, ax, (char *) NULL, |
2167 | bigend, section_offsets, objfile); | |
c906108c SS |
2168 | break; |
2169 | default: | |
2170 | break; | |
2171 | } | |
2172 | } | |
2173 | ||
2174 | /* Parse the line number info for file descriptor FH into | |
2175 | GDB's linetable LT. MIPS' encoding requires a little bit | |
2176 | of magic to get things out. Note also that MIPS' line | |
2177 | numbers can go back and forth, apparently we can live | |
025bb325 | 2178 | with that and do not need to reorder our linetables. */ |
c906108c | 2179 | |
a14ed312 KB |
2180 | static void parse_lines (FDR *, PDR *, struct linetable *, int, |
2181 | struct partial_symtab *, CORE_ADDR); | |
c906108c SS |
2182 | |
2183 | static void | |
fba45db2 KB |
2184 | parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines, |
2185 | struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr) | |
c906108c SS |
2186 | { |
2187 | unsigned char *base; | |
2188 | int j, k; | |
2189 | int delta, count, lineno = 0; | |
2190 | ||
2191 | if (fh->cbLine == 0) | |
2192 | return; | |
2193 | ||
025bb325 | 2194 | /* Scan by procedure descriptors. */ |
c906108c SS |
2195 | k = 0; |
2196 | for (j = 0; j < fh->cpd; j++, pr++) | |
2197 | { | |
2198 | CORE_ADDR l; | |
2199 | CORE_ADDR adr; | |
2200 | unsigned char *halt; | |
2201 | ||
025bb325 | 2202 | /* No code for this one. */ |
c906108c SS |
2203 | if (pr->iline == ilineNil || |
2204 | pr->lnLow == -1 || pr->lnHigh == -1) | |
2205 | continue; | |
2206 | ||
2207 | /* Determine start and end address of compressed line bytes for | |
c5aa993b | 2208 | this procedure. */ |
c906108c SS |
2209 | base = debug_info->line + fh->cbLineOffset; |
2210 | if (j != (fh->cpd - 1)) | |
c5aa993b | 2211 | halt = base + pr[1].cbLineOffset; |
c906108c | 2212 | else |
c5aa993b | 2213 | halt = base + fh->cbLine; |
c906108c SS |
2214 | base += pr->cbLineOffset; |
2215 | ||
5afc051b | 2216 | adr = pst->textlow + pr->adr - lowest_pdr_addr; |
c906108c SS |
2217 | |
2218 | l = adr >> 2; /* in words */ | |
c5aa993b | 2219 | for (lineno = pr->lnLow; base < halt;) |
c906108c SS |
2220 | { |
2221 | count = *base & 0x0f; | |
2222 | delta = *base++ >> 4; | |
2223 | if (delta >= 8) | |
2224 | delta -= 16; | |
2225 | if (delta == -8) | |
2226 | { | |
2227 | delta = (base[0] << 8) | base[1]; | |
2228 | if (delta >= 0x8000) | |
2229 | delta -= 0x10000; | |
2230 | base += 2; | |
2231 | } | |
2232 | lineno += delta; /* first delta is 0 */ | |
2233 | ||
025bb325 | 2234 | /* Complain if the line table overflows. Could happen |
c906108c SS |
2235 | with corrupt binaries. */ |
2236 | if (lt->nitems >= maxlines) | |
2237 | { | |
23136709 | 2238 | complaint (&symfile_complaints, |
e2e0b3e5 | 2239 | _("guessed size of linetable for %s incorrectly"), |
23136709 | 2240 | fdr_name (fh)); |
c906108c SS |
2241 | break; |
2242 | } | |
2243 | k = add_line (lt, lineno, l, k); | |
2244 | l += count + 1; | |
2245 | } | |
2246 | } | |
2247 | } | |
2248 | \f | |
23136709 KB |
2249 | static void |
2250 | function_outside_compilation_unit_complaint (const char *arg1) | |
2251 | { | |
2252 | complaint (&symfile_complaints, | |
3e43a32a MS |
2253 | _("function `%s' appears to be defined " |
2254 | "outside of all compilation units"), | |
23136709 KB |
2255 | arg1); |
2256 | } | |
2257 | ||
1f9872de JB |
2258 | /* Use the STORAGE_CLASS to compute which section the given symbol |
2259 | belongs to, and then records this new minimal symbol. */ | |
2260 | ||
2261 | static void | |
8dddcb8f TT |
2262 | record_minimal_symbol (minimal_symbol_reader &reader, |
2263 | const char *name, const CORE_ADDR address, | |
1f9872de JB |
2264 | enum minimal_symbol_type ms_type, int storage_class, |
2265 | struct objfile *objfile) | |
2266 | { | |
2267 | int section; | |
1f9872de JB |
2268 | |
2269 | switch (storage_class) | |
2270 | { | |
2271 | case scText: | |
2272 | section = SECT_OFF_TEXT (objfile); | |
1f9872de JB |
2273 | break; |
2274 | case scData: | |
2275 | section = SECT_OFF_DATA (objfile); | |
1f9872de JB |
2276 | break; |
2277 | case scBss: | |
2278 | section = SECT_OFF_BSS (objfile); | |
1f9872de JB |
2279 | break; |
2280 | case scSData: | |
2281 | section = get_section_index (objfile, ".sdata"); | |
1f9872de JB |
2282 | break; |
2283 | case scSBss: | |
2284 | section = get_section_index (objfile, ".sbss"); | |
1f9872de JB |
2285 | break; |
2286 | case scRData: | |
2287 | section = get_section_index (objfile, ".rdata"); | |
1f9872de JB |
2288 | break; |
2289 | case scInit: | |
2290 | section = get_section_index (objfile, ".init"); | |
1f9872de JB |
2291 | break; |
2292 | case scXData: | |
2293 | section = get_section_index (objfile, ".xdata"); | |
1f9872de JB |
2294 | break; |
2295 | case scPData: | |
2296 | section = get_section_index (objfile, ".pdata"); | |
1f9872de JB |
2297 | break; |
2298 | case scFini: | |
2299 | section = get_section_index (objfile, ".fini"); | |
1f9872de JB |
2300 | break; |
2301 | case scRConst: | |
2302 | section = get_section_index (objfile, ".rconst"); | |
1f9872de JB |
2303 | break; |
2304 | #ifdef scTlsData | |
2305 | case scTlsData: | |
2306 | section = get_section_index (objfile, ".tlsdata"); | |
1f9872de JB |
2307 | break; |
2308 | #endif | |
2309 | #ifdef scTlsBss | |
2310 | case scTlsBss: | |
2311 | section = get_section_index (objfile, ".tlsbss"); | |
1f9872de JB |
2312 | break; |
2313 | #endif | |
2314 | default: | |
2315 | /* This kind of symbol is not associated to a section. */ | |
2316 | section = -1; | |
1f9872de JB |
2317 | } |
2318 | ||
8dddcb8f | 2319 | reader.record_with_info (name, address, ms_type, section); |
1f9872de JB |
2320 | } |
2321 | ||
c906108c SS |
2322 | /* Master parsing procedure for first-pass reading of file symbols |
2323 | into a partial_symtab. */ | |
2324 | ||
2325 | static void | |
8dddcb8f TT |
2326 | parse_partial_symbols (minimal_symbol_reader &reader, |
2327 | struct objfile *objfile) | |
c906108c | 2328 | { |
5e2b427d | 2329 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
2330 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
2331 | const bfd_size_type external_rfd_size = debug_swap->external_rfd_size; | |
2332 | const bfd_size_type external_ext_size = debug_swap->external_ext_size; | |
12b9c64f AO |
2333 | void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in; |
2334 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; | |
2335 | void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in; | |
c906108c SS |
2336 | int f_idx, s_idx; |
2337 | HDRR *hdr = &debug_info->symbolic_header; | |
2338 | /* Running pointers */ | |
2339 | FDR *fh; | |
2340 | char *ext_out; | |
2341 | char *ext_out_end; | |
52f0bd74 | 2342 | EXTR *ext_in; |
c906108c SS |
2343 | EXTR *ext_in_end; |
2344 | SYMR sh; | |
2345 | struct partial_symtab *pst; | |
2346 | int textlow_not_set = 1; | |
c906108c | 2347 | |
025bb325 | 2348 | /* List of current psymtab's include files. */ |
0d5cff50 | 2349 | const char **psymtab_include_list; |
c906108c SS |
2350 | int includes_allocated; |
2351 | int includes_used; | |
2352 | EXTR *extern_tab; | |
2353 | struct pst_map *fdr_to_pst; | |
025bb325 | 2354 | /* Index within current psymtab dependency list. */ |
c906108c SS |
2355 | struct partial_symtab **dependency_list; |
2356 | int dependencies_used, dependencies_allocated; | |
c906108c SS |
2357 | char *name; |
2358 | enum language prev_language; | |
2359 | asection *text_sect; | |
2360 | int relocatable = 0; | |
2361 | ||
2362 | /* Irix 5.2 shared libraries have a fh->adr field of zero, but | |
2363 | the shared libraries are prelinked at a high memory address. | |
2364 | We have to adjust the start address of the object file for this case, | |
2365 | by setting it to the start address of the first procedure in the file. | |
2366 | But we should do no adjustments if we are debugging a .o file, where | |
2367 | the text section (and fh->adr) really starts at zero. */ | |
2368 | text_sect = bfd_get_section_by_name (cur_bfd, ".text"); | |
2369 | if (text_sect != NULL | |
2370 | && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC)) | |
2371 | relocatable = 1; | |
2372 | ||
8b92e4d5 | 2373 | extern_tab = (EXTR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
2374 | sizeof (EXTR) * hdr->iextMax); |
2375 | ||
2376 | includes_allocated = 30; | |
2377 | includes_used = 0; | |
0d5cff50 DE |
2378 | psymtab_include_list = (const char **) alloca (includes_allocated * |
2379 | sizeof (const char *)); | |
c906108c SS |
2380 | next_symbol_text_func = mdebug_next_symbol_text; |
2381 | ||
2382 | dependencies_allocated = 30; | |
2383 | dependencies_used = 0; | |
2384 | dependency_list = | |
2385 | (struct partial_symtab **) alloca (dependencies_allocated * | |
2386 | sizeof (struct partial_symtab *)); | |
2387 | ||
46212e0b | 2388 | set_last_source_file (NULL); |
c906108c SS |
2389 | |
2390 | /* | |
2391 | * Big plan: | |
2392 | * | |
2393 | * Only parse the Local and External symbols, and the Relative FDR. | |
2394 | * Fixup enough of the loader symtab to be able to use it. | |
2395 | * Allocate space only for the file's portions we need to | |
025bb325 | 2396 | * look at. (XXX) |
c906108c SS |
2397 | */ |
2398 | ||
2399 | max_gdbinfo = 0; | |
2400 | max_glevel = MIN_GLEVEL; | |
2401 | ||
2402 | /* Allocate the map FDR -> PST. | |
2403 | Minor hack: -O3 images might claim some global data belongs | |
025bb325 | 2404 | to FDR -1. We`ll go along with that. */ |
633cf254 TT |
2405 | gdb::def_vector<struct pst_map> fdr_to_pst_holder (hdr->ifdMax + 1); |
2406 | fdr_to_pst = fdr_to_pst_holder.data (); | |
c906108c SS |
2407 | fdr_to_pst++; |
2408 | { | |
d4f3574e | 2409 | struct partial_symtab *pst = new_psymtab ("", objfile); |
b8d56208 | 2410 | |
c906108c SS |
2411 | fdr_to_pst[-1].pst = pst; |
2412 | FDR_IDX (pst) = -1; | |
2413 | } | |
2414 | ||
2415 | /* Allocate the global pending list. */ | |
2416 | pending_list = | |
2417 | ((struct mdebug_pending **) | |
8b92e4d5 | 2418 | obstack_alloc (&objfile->objfile_obstack, |
c906108c | 2419 | hdr->ifdMax * sizeof (struct mdebug_pending *))); |
12b9c64f | 2420 | memset (pending_list, 0, |
c906108c SS |
2421 | hdr->ifdMax * sizeof (struct mdebug_pending *)); |
2422 | ||
2423 | /* Pass 0 over external syms: swap them in. */ | |
633cf254 | 2424 | gdb::def_vector<EXTR> ext_block (hdr->iextMax); |
c906108c SS |
2425 | |
2426 | ext_out = (char *) debug_info->external_ext; | |
2427 | ext_out_end = ext_out + hdr->iextMax * external_ext_size; | |
633cf254 | 2428 | ext_in = ext_block.data (); |
c906108c SS |
2429 | for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++) |
2430 | (*swap_ext_in) (cur_bfd, ext_out, ext_in); | |
2431 | ||
025bb325 | 2432 | /* Pass 1 over external syms: Presize and partition the list. */ |
633cf254 | 2433 | ext_in = ext_block.data (); |
c906108c SS |
2434 | ext_in_end = ext_in + hdr->iextMax; |
2435 | for (; ext_in < ext_in_end; ext_in++) | |
2436 | { | |
2437 | /* See calls to complain below. */ | |
2438 | if (ext_in->ifd >= -1 | |
2439 | && ext_in->ifd < hdr->ifdMax | |
2440 | && ext_in->asym.iss >= 0 | |
2441 | && ext_in->asym.iss < hdr->issExtMax) | |
2442 | fdr_to_pst[ext_in->ifd].n_globals++; | |
2443 | } | |
2444 | ||
025bb325 | 2445 | /* Pass 1.5 over files: partition out global symbol space. */ |
c906108c SS |
2446 | s_idx = 0; |
2447 | for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) | |
2448 | { | |
2449 | fdr_to_pst[f_idx].globals_offset = s_idx; | |
2450 | s_idx += fdr_to_pst[f_idx].n_globals; | |
2451 | fdr_to_pst[f_idx].n_globals = 0; | |
2452 | } | |
2453 | ||
2454 | /* ECOFF in ELF: | |
2455 | ||
2456 | For ECOFF in ELF, we skip the creation of the minimal symbols. | |
2457 | The ECOFF symbols should be a subset of the Elf symbols, and the | |
2458 | section information of the elf symbols will be more accurate. | |
2459 | FIXME! What about Irix 5's native linker? | |
2460 | ||
2461 | By default, Elf sections which don't exist in ECOFF | |
2462 | get put in ECOFF's absolute section by the gnu linker. | |
2463 | Since absolute sections don't get relocated, we | |
2464 | end up calculating an address different from that of | |
2465 | the symbol's minimal symbol (created earlier from the | |
025bb325 | 2466 | Elf symtab). |
c906108c SS |
2467 | |
2468 | To fix this, either : | |
2469 | 1) don't create the duplicate symbol | |
c5aa993b JM |
2470 | (assumes ECOFF symtab is a subset of the ELF symtab; |
2471 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2472 | 2) create it, only if lookup for existing symbol in ELF's minimal |
c5aa993b JM |
2473 | symbols fails |
2474 | (inefficient; | |
2475 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2476 | 3) create it, but lookup ELF's minimal symbol and use it's section |
c5aa993b JM |
2477 | during relocation, then modify "uniqify" phase to merge and |
2478 | eliminate the duplicate symbol | |
2479 | (highly inefficient) | |
c906108c SS |
2480 | |
2481 | I've implemented #1 here... | |
2482 | Skip the creation of the minimal symbols based on the ECOFF | |
025bb325 | 2483 | symbol table. */ |
c906108c | 2484 | |
025bb325 | 2485 | /* Pass 2 over external syms: fill in external symbols. */ |
633cf254 | 2486 | ext_in = ext_block.data (); |
c5aa993b JM |
2487 | ext_in_end = ext_in + hdr->iextMax; |
2488 | for (; ext_in < ext_in_end; ext_in++) | |
2489 | { | |
2490 | enum minimal_symbol_type ms_type = mst_text; | |
2491 | CORE_ADDR svalue = ext_in->asym.value; | |
c906108c | 2492 | |
c5aa993b JM |
2493 | /* The Irix 5 native tools seem to sometimes generate bogus |
2494 | external symbols. */ | |
2495 | if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax) | |
2496 | { | |
23136709 | 2497 | complaint (&symfile_complaints, |
3e43a32a MS |
2498 | _("bad ifd for external symbol: %d (max %ld)"), |
2499 | ext_in->ifd, hdr->ifdMax); | |
c5aa993b JM |
2500 | continue; |
2501 | } | |
2502 | if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax) | |
2503 | { | |
23136709 | 2504 | complaint (&symfile_complaints, |
e2e0b3e5 | 2505 | _("bad iss for external symbol: %ld (max %ld)"), |
23136709 | 2506 | ext_in->asym.iss, hdr->issExtMax); |
c5aa993b JM |
2507 | continue; |
2508 | } | |
c906108c | 2509 | |
c5aa993b JM |
2510 | extern_tab[fdr_to_pst[ext_in->ifd].globals_offset |
2511 | + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in; | |
c906108c SS |
2512 | |
2513 | ||
c5aa993b JM |
2514 | if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil) |
2515 | continue; | |
c906108c | 2516 | |
c906108c | 2517 | |
025bb325 | 2518 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c5aa993b JM |
2519 | name = debug_info->ssext + ext_in->asym.iss; |
2520 | ||
025bb325 | 2521 | /* Process ECOFF Symbol Types and Storage Classes. */ |
c5aa993b JM |
2522 | switch (ext_in->asym.st) |
2523 | { | |
2524 | case stProc: | |
2525 | /* Beginnning of Procedure */ | |
c5aa993b JM |
2526 | break; |
2527 | case stStaticProc: | |
2528 | /* Load time only static procs */ | |
2529 | ms_type = mst_file_text; | |
c5aa993b JM |
2530 | break; |
2531 | case stGlobal: | |
2532 | /* External symbol */ | |
2533 | if (SC_IS_COMMON (ext_in->asym.sc)) | |
2534 | { | |
2535 | /* The value of a common symbol is its size, not its address. | |
2536 | Ignore it. */ | |
c906108c | 2537 | continue; |
c5aa993b JM |
2538 | } |
2539 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2540 | { | |
2541 | ms_type = mst_data; | |
c5aa993b JM |
2542 | } |
2543 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2544 | { | |
2545 | ms_type = mst_bss; | |
c5aa993b | 2546 | } |
0e931cf0 JB |
2547 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2548 | { | |
2549 | ms_type = mst_bss; | |
0e931cf0 | 2550 | } |
c5aa993b JM |
2551 | else |
2552 | ms_type = mst_abs; | |
2553 | break; | |
2554 | case stLabel: | |
2555 | /* Label */ | |
0e931cf0 JB |
2556 | |
2557 | /* On certain platforms, some extra label symbols can be | |
025bb325 | 2558 | generated by the linker. One possible usage for this kind |
0e931cf0 | 2559 | of symbols is to represent the address of the begining of a |
025bb325 | 2560 | given section. For instance, on Tru64 5.1, the address of |
0e931cf0 JB |
2561 | the _ftext label is the start address of the .text section. |
2562 | ||
2563 | The storage class of these symbols is usually directly | |
025bb325 | 2564 | related to the section to which the symbol refers. For |
0e931cf0 JB |
2565 | instance, on Tru64 5.1, the storage class for the _fdata |
2566 | label is scData, refering to the .data section. | |
2567 | ||
2568 | It is actually possible that the section associated to the | |
025bb325 | 2569 | storage class of the label does not exist. On True64 5.1 |
0e931cf0 JB |
2570 | for instance, the libm.so shared library does not contain |
2571 | any .data section, although it contains a _fpdata label | |
025bb325 | 2572 | which storage class is scData... Since these symbols are |
0e931cf0 | 2573 | usually useless for the debugger user anyway, we just |
025bb325 | 2574 | discard these symbols. */ |
0e931cf0 | 2575 | |
c5aa993b JM |
2576 | if (SC_IS_TEXT (ext_in->asym.sc)) |
2577 | { | |
0e931cf0 JB |
2578 | if (objfile->sect_index_text == -1) |
2579 | continue; | |
2580 | ||
c5aa993b | 2581 | ms_type = mst_file_text; |
c5aa993b JM |
2582 | } |
2583 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2584 | { | |
0e931cf0 JB |
2585 | if (objfile->sect_index_data == -1) |
2586 | continue; | |
2587 | ||
c5aa993b | 2588 | ms_type = mst_file_data; |
c5aa993b JM |
2589 | } |
2590 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2591 | { | |
0e931cf0 JB |
2592 | if (objfile->sect_index_bss == -1) |
2593 | continue; | |
2594 | ||
c5aa993b | 2595 | ms_type = mst_file_bss; |
c5aa993b | 2596 | } |
0e931cf0 JB |
2597 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2598 | { | |
2599 | const int sbss_sect_index = get_section_index (objfile, ".sbss"); | |
2600 | ||
2601 | if (sbss_sect_index == -1) | |
2602 | continue; | |
2603 | ||
2604 | ms_type = mst_file_bss; | |
0e931cf0 | 2605 | } |
c5aa993b JM |
2606 | else |
2607 | ms_type = mst_abs; | |
2608 | break; | |
2609 | case stLocal: | |
2610 | case stNil: | |
2611 | /* The alpha has the section start addresses in stLocal symbols | |
025bb325 | 2612 | whose name starts with a `.'. Skip those but complain for all |
c5aa993b JM |
2613 | other stLocal symbols. |
2614 | Irix6 puts the section start addresses in stNil symbols, skip | |
025bb325 | 2615 | those too. */ |
c5aa993b JM |
2616 | if (name[0] == '.') |
2617 | continue; | |
2618 | /* Fall through. */ | |
2619 | default: | |
2620 | ms_type = mst_unknown; | |
23136709 | 2621 | unknown_ext_complaint (name); |
c5aa993b JM |
2622 | } |
2623 | if (!ECOFF_IN_ELF (cur_bfd)) | |
8dddcb8f | 2624 | record_minimal_symbol (reader, name, svalue, ms_type, ext_in->asym.sc, |
1f9872de | 2625 | objfile); |
c5aa993b | 2626 | } |
c906108c | 2627 | |
025bb325 | 2628 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c906108c SS |
2629 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
2630 | { | |
2631 | struct partial_symtab *save_pst; | |
2632 | EXTR *ext_ptr; | |
2633 | CORE_ADDR textlow; | |
2634 | ||
2635 | cur_fdr = fh = debug_info->fdr + f_idx; | |
2636 | ||
2637 | if (fh->csym == 0) | |
2638 | { | |
2639 | fdr_to_pst[f_idx].pst = NULL; | |
2640 | continue; | |
2641 | } | |
2642 | ||
2643 | /* Determine the start address for this object file from the | |
c5aa993b | 2644 | file header and relocate it, except for Irix 5.2 zero fh->adr. */ |
c906108c SS |
2645 | if (fh->cpd) |
2646 | { | |
2647 | textlow = fh->adr; | |
2648 | if (relocatable || textlow != 0) | |
3e43a32a MS |
2649 | textlow += ANOFFSET (objfile->section_offsets, |
2650 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2651 | } |
2652 | else | |
2653 | textlow = 0; | |
18a94d75 | 2654 | pst = start_psymtab_common (objfile, |
c906108c SS |
2655 | fdr_name (fh), |
2656 | textlow, | |
af5bf4ad SM |
2657 | objfile->global_psymbols, |
2658 | objfile->static_psymbols); | |
e38df1d0 TT |
2659 | pst->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
2660 | sizeof (struct symloc)); | |
12b9c64f | 2661 | memset (pst->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
2662 | |
2663 | save_pst = pst; | |
2664 | FDR_IDX (pst) = f_idx; | |
2665 | CUR_BFD (pst) = cur_bfd; | |
2666 | DEBUG_SWAP (pst) = debug_swap; | |
2667 | DEBUG_INFO (pst) = debug_info; | |
2668 | PENDING_LIST (pst) = pending_list; | |
2669 | ||
025bb325 | 2670 | /* The way to turn this into a symtab is to call... */ |
257e7a09 | 2671 | pst->read_symtab = mdebug_read_symtab; |
c906108c SS |
2672 | |
2673 | /* Set up language for the pst. | |
2674 | The language from the FDR is used if it is unambigious (e.g. cfront | |
c5aa993b JM |
2675 | with native cc and g++ will set the language to C). |
2676 | Otherwise we have to deduce the language from the filename. | |
2677 | Native ecoff has every header file in a separate FDR, so | |
2678 | deduce_language_from_filename will return language_unknown for | |
2679 | a header file, which is not what we want. | |
2680 | But the FDRs for the header files are after the FDR for the source | |
2681 | file, so we can assign the language of the source file to the | |
025bb325 | 2682 | following header files. Then we save the language in the private |
c5aa993b | 2683 | pst data so that we can reuse it when building symtabs. */ |
c906108c SS |
2684 | prev_language = psymtab_language; |
2685 | ||
2686 | switch (fh->lang) | |
2687 | { | |
2688 | case langCplusplusV2: | |
2689 | psymtab_language = language_cplus; | |
2690 | break; | |
2691 | default: | |
2692 | psymtab_language = deduce_language_from_filename (fdr_name (fh)); | |
2693 | break; | |
2694 | } | |
2695 | if (psymtab_language == language_unknown) | |
2696 | psymtab_language = prev_language; | |
2697 | PST_PRIVATE (pst)->pst_language = psymtab_language; | |
2698 | ||
5afc051b | 2699 | pst->texthigh = pst->textlow; |
c906108c SS |
2700 | |
2701 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
c5aa993b JM |
2702 | This symbol is emitted by mips-tfile to signal that the |
2703 | current object file uses encapsulated stabs instead of mips | |
2704 | ecoff for local symbols. (It is the second symbol because | |
2705 | the first symbol is the stFile used to signal the start of a | |
025bb325 | 2706 | file). */ |
c906108c SS |
2707 | processing_gcc_compilation = 0; |
2708 | if (fh->csym >= 2) | |
2709 | { | |
2710 | (*swap_sym_in) (cur_bfd, | |
2711 | ((char *) debug_info->external_sym | |
2712 | + (fh->isymBase + 1) * external_sym_size), | |
2713 | &sh); | |
ee300cd4 AC |
2714 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
2715 | stabs_symbol) == 0) | |
c906108c SS |
2716 | processing_gcc_compilation = 2; |
2717 | } | |
2718 | ||
2719 | if (processing_gcc_compilation != 0) | |
2720 | { | |
2721 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2722 | { | |
2723 | int type_code; | |
0d5cff50 | 2724 | const char *namestring; |
c906108c SS |
2725 | |
2726 | (*swap_sym_in) (cur_bfd, | |
2727 | (((char *) debug_info->external_sym) | |
c5aa993b | 2728 | + (fh->isymBase + cur_sdx) * external_sym_size), |
c906108c SS |
2729 | &sh); |
2730 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2731 | if (!ECOFF_IS_STAB (&sh)) | |
2732 | { | |
2733 | if (sh.st == stProc || sh.st == stStaticProc) | |
2734 | { | |
2735 | CORE_ADDR procaddr; | |
2736 | long isym; | |
c5aa993b | 2737 | |
c906108c SS |
2738 | if (sh.st == stStaticProc) |
2739 | { | |
2740 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
8dddcb8f | 2741 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2742 | mst_file_text, sh.sc, |
2743 | objfile); | |
c906108c | 2744 | } |
2273f0ac TT |
2745 | sh.value += ANOFFSET (objfile->section_offsets, |
2746 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2747 | procaddr = sh.value; |
2748 | ||
2749 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2750 | (debug_info->external_aux | |
2751 | + fh->iauxBase | |
2752 | + sh.index)); | |
2753 | (*swap_sym_in) (cur_bfd, | |
2754 | ((char *) debug_info->external_sym | |
2755 | + ((fh->isymBase + isym - 1) | |
2756 | * external_sym_size)), | |
2757 | &sh); | |
2758 | if (sh.st == stEnd) | |
2759 | { | |
2760 | CORE_ADDR high = procaddr + sh.value; | |
2761 | ||
c5aa993b | 2762 | /* Kludge for Irix 5.2 zero fh->adr. */ |
c906108c | 2763 | if (!relocatable |
5afc051b JB |
2764 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
2765 | pst->textlow = procaddr; | |
2766 | if (high > pst->texthigh) | |
2767 | pst->texthigh = high; | |
c906108c SS |
2768 | } |
2769 | } | |
2770 | else if (sh.st == stStatic) | |
2771 | { | |
2772 | switch (sh.sc) | |
2773 | { | |
2774 | case scUndefined: | |
2775 | case scSUndefined: | |
2776 | case scNil: | |
2777 | case scAbs: | |
2778 | break; | |
2779 | ||
2780 | case scData: | |
2781 | case scSData: | |
2782 | case scRData: | |
2783 | case scPData: | |
2784 | case scXData: | |
2785 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
8dddcb8f | 2786 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2787 | mst_file_data, sh.sc, |
2788 | objfile); | |
2273f0ac TT |
2789 | sh.value += ANOFFSET (objfile->section_offsets, |
2790 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
2791 | break; |
2792 | ||
2793 | default: | |
2794 | /* FIXME! Shouldn't this use cases for bss, | |
025bb325 | 2795 | then have the default be abs? */ |
c906108c | 2796 | namestring = debug_info->ss + fh->issBase + sh.iss; |
8dddcb8f | 2797 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2798 | mst_file_bss, sh.sc, |
2799 | objfile); | |
2273f0ac TT |
2800 | sh.value += ANOFFSET (objfile->section_offsets, |
2801 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
2802 | break; |
2803 | } | |
2804 | } | |
2805 | continue; | |
2806 | } | |
025bb325 | 2807 | /* Handle stabs continuation. */ |
c906108c SS |
2808 | { |
2809 | char *stabstring = debug_info->ss + fh->issBase + sh.iss; | |
2810 | int len = strlen (stabstring); | |
b8d56208 | 2811 | |
c5aa993b | 2812 | while (stabstring[len - 1] == '\\') |
c906108c SS |
2813 | { |
2814 | SYMR sh2; | |
2815 | char *stabstring1 = stabstring; | |
2816 | char *stabstring2; | |
2817 | int len2; | |
2818 | ||
025bb325 | 2819 | /* Ignore continuation char from 1st string. */ |
c906108c SS |
2820 | len--; |
2821 | ||
025bb325 | 2822 | /* Read next stabstring. */ |
c906108c SS |
2823 | cur_sdx++; |
2824 | (*swap_sym_in) (cur_bfd, | |
2825 | (((char *) debug_info->external_sym) | |
c5aa993b | 2826 | + (fh->isymBase + cur_sdx) |
c906108c SS |
2827 | * external_sym_size), |
2828 | &sh2); | |
2829 | stabstring2 = debug_info->ss + fh->issBase + sh2.iss; | |
2830 | len2 = strlen (stabstring2); | |
2831 | ||
025bb325 | 2832 | /* Concatinate stabstring2 with stabstring1. */ |
c906108c | 2833 | if (stabstring |
c5aa993b | 2834 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
224c3ddb SM |
2835 | stabstring |
2836 | = (char *) xrealloc (stabstring, len + len2 + 1); | |
c906108c | 2837 | else |
86f902e0 | 2838 | { |
224c3ddb | 2839 | stabstring = (char *) xmalloc (len + len2 + 1); |
86f902e0 FF |
2840 | strcpy (stabstring, stabstring1); |
2841 | } | |
c906108c SS |
2842 | strcpy (stabstring + len, stabstring2); |
2843 | len += len2; | |
2844 | } | |
2845 | ||
d3119d1e EZ |
2846 | switch (type_code) |
2847 | { | |
a121b7c1 | 2848 | const char *p; |
b8d56208 | 2849 | |
3e43a32a | 2850 | /* Standard, external, non-debugger, symbols. */ |
d3119d1e EZ |
2851 | |
2852 | case N_TEXT | N_EXT: | |
2853 | case N_NBTEXT | N_EXT: | |
3e43a32a MS |
2854 | sh.value += ANOFFSET (objfile->section_offsets, |
2855 | SECT_OFF_TEXT (objfile)); | |
d3119d1e EZ |
2856 | goto record_it; |
2857 | ||
2858 | case N_DATA | N_EXT: | |
2859 | case N_NBDATA | N_EXT: | |
3e43a32a MS |
2860 | sh.value += ANOFFSET (objfile->section_offsets, |
2861 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2862 | goto record_it; |
2863 | ||
2864 | case N_BSS: | |
2865 | case N_BSS | N_EXT: | |
2866 | case N_NBBSS | N_EXT: | |
025bb325 | 2867 | case N_SETV | N_EXT: /* FIXME, is this in BSS? */ |
3e43a32a MS |
2868 | sh.value += ANOFFSET (objfile->section_offsets, |
2869 | SECT_OFF_BSS (objfile)); | |
d3119d1e EZ |
2870 | goto record_it; |
2871 | ||
2872 | case N_ABS | N_EXT: | |
2873 | record_it: | |
b98bd911 | 2874 | continue; |
d3119d1e | 2875 | |
025bb325 | 2876 | /* Standard, local, non-debugger, symbols. */ |
d3119d1e EZ |
2877 | |
2878 | case N_NBTEXT: | |
2879 | ||
3e43a32a MS |
2880 | /* We need to be able to deal with both N_FN or |
2881 | N_TEXT, because we have no way of knowing | |
2882 | whether the sys-supplied ld or GNU ld was used | |
2883 | to make the executable. Sequents throw in | |
2884 | another wrinkle -- they renumbered N_FN. */ | |
d3119d1e EZ |
2885 | |
2886 | case N_FN: | |
2887 | case N_FN_SEQ: | |
2888 | case N_TEXT: | |
2889 | continue; | |
2890 | ||
2891 | case N_DATA: | |
3e43a32a MS |
2892 | sh.value += ANOFFSET (objfile->section_offsets, |
2893 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2894 | goto record_it; |
2895 | ||
2896 | case N_UNDF | N_EXT: | |
025bb325 | 2897 | continue; /* Just undefined, not COMMON. */ |
d3119d1e EZ |
2898 | |
2899 | case N_UNDF: | |
2900 | continue; | |
2901 | ||
2902 | /* Lots of symbol types we can just ignore. */ | |
2903 | ||
2904 | case N_ABS: | |
2905 | case N_NBDATA: | |
2906 | case N_NBBSS: | |
2907 | continue; | |
2908 | ||
025bb325 | 2909 | /* Keep going . . . */ |
d3119d1e EZ |
2910 | |
2911 | /* | |
2912 | * Special symbol types for GNU | |
2913 | */ | |
2914 | case N_INDR: | |
2915 | case N_INDR | N_EXT: | |
2916 | case N_SETA: | |
2917 | case N_SETA | N_EXT: | |
2918 | case N_SETT: | |
2919 | case N_SETT | N_EXT: | |
2920 | case N_SETD: | |
2921 | case N_SETD | N_EXT: | |
2922 | case N_SETB: | |
2923 | case N_SETB | N_EXT: | |
2924 | case N_SETV: | |
2925 | continue; | |
2926 | ||
2927 | /* | |
2928 | * Debugger symbols | |
2929 | */ | |
2930 | ||
2931 | case N_SO: | |
2932 | { | |
d3119d1e | 2933 | static int prev_so_symnum = -10; |
0ba1096a | 2934 | const char *p; |
d3119d1e | 2935 | |
3e43a32a | 2936 | /* A zero value is probably an indication for the |
8763cede | 2937 | SunPRO 3.0 compiler. dbx_end_psymtab explicitly tests |
3e43a32a | 2938 | for zero, so don't relocate it. */ |
d3119d1e | 2939 | |
203c3895 | 2940 | if (sh.value == 0 |
5e2b427d | 2941 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
78cc6c2d | 2942 | textlow_not_set = 1; |
d3119d1e EZ |
2943 | else |
2944 | textlow_not_set = 0; | |
203c3895 | 2945 | |
d3119d1e | 2946 | if (prev_so_symnum != symnum - 1) |
025bb325 | 2947 | { /* Here if prev stab wasn't N_SO. */ |
d3119d1e EZ |
2948 | if (pst) |
2949 | { | |
2950 | pst = (struct partial_symtab *) 0; | |
2951 | includes_used = 0; | |
2952 | dependencies_used = 0; | |
2953 | } | |
2954 | } | |
2955 | ||
2956 | prev_so_symnum = symnum; | |
c906108c | 2957 | |
025bb325 MS |
2958 | /* End the current partial symtab and start a |
2959 | new one. */ | |
d3119d1e EZ |
2960 | |
2961 | /* SET_NAMESTRING ();*/ | |
2962 | namestring = stabstring; | |
2963 | ||
3e43a32a | 2964 | /* Null name means end of .o file. Don't start a new |
025bb325 | 2965 | one. */ |
d3119d1e EZ |
2966 | if (*namestring == '\000') |
2967 | continue; | |
2968 | ||
3e43a32a MS |
2969 | /* Some compilers (including gcc) emit a pair of |
2970 | initial N_SOs. The first one is a directory name; | |
2971 | the second the file name. If pst exists, is | |
2972 | empty, and has a filename ending in '/', we assume | |
025bb325 | 2973 | the previous N_SO was a directory name. */ |
0ba1096a KT |
2974 | p = lbasename (namestring); |
2975 | if (p != namestring && *p == '\000') | |
3e43a32a | 2976 | continue; /* Simply ignore directory |
025bb325 | 2977 | name SOs. */ |
d3119d1e | 2978 | |
3e43a32a MS |
2979 | /* Some other compilers (C++ ones in particular) emit |
2980 | useless SOs for non-existant .c files. We ignore | |
2981 | all subsequent SOs that immediately follow the | |
2982 | first. */ | |
d3119d1e EZ |
2983 | |
2984 | if (!pst) | |
2985 | pst = save_pst; | |
2986 | continue; | |
2987 | } | |
2988 | ||
2989 | case N_BINCL: | |
2990 | continue; | |
2991 | ||
2992 | case N_SOL: | |
2993 | { | |
2994 | enum language tmp_language; | |
b8d56208 | 2995 | |
025bb325 | 2996 | /* Mark down an include file in the current psymtab. */ |
d3119d1e | 2997 | |
025bb325 | 2998 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
2999 | namestring = stabstring; |
3000 | ||
3e43a32a MS |
3001 | tmp_language |
3002 | = deduce_language_from_filename (namestring); | |
d3119d1e | 3003 | |
3e43a32a MS |
3004 | /* Only change the psymtab's language if we've |
3005 | learned something useful (eg. tmp_language is not | |
3006 | language_unknown). In addition, to match what | |
3007 | start_subfile does, never change from C++ to | |
3008 | C. */ | |
d3119d1e EZ |
3009 | if (tmp_language != language_unknown |
3010 | && (tmp_language != language_c | |
3011 | || psymtab_language != language_cplus)) | |
3012 | psymtab_language = tmp_language; | |
3013 | ||
3e43a32a MS |
3014 | /* In C++, one may expect the same filename to come |
3015 | round many times, when code is coming alternately | |
3016 | from the main file and from inline functions in | |
025bb325 | 3017 | other files. So I check to see if this is a file |
3e43a32a MS |
3018 | we've seen before -- either the main source file, |
3019 | or a previously included file. | |
3020 | ||
3021 | This seems to be a lot of time to be spending on | |
3022 | N_SOL, but things like "break c-exp.y:435" need to | |
3023 | work (I suppose the psymtab_include_list could be | |
3024 | hashed or put in a binary tree, if profiling shows | |
3025 | this is a major hog). */ | |
0ba1096a | 3026 | if (pst && filename_cmp (namestring, pst->filename) == 0) |
d3119d1e | 3027 | continue; |
b8d56208 | 3028 | |
d3119d1e | 3029 | { |
aa1ee363 | 3030 | int i; |
b8d56208 | 3031 | |
d3119d1e | 3032 | for (i = 0; i < includes_used; i++) |
0ba1096a KT |
3033 | if (filename_cmp (namestring, |
3034 | psymtab_include_list[i]) == 0) | |
d3119d1e EZ |
3035 | { |
3036 | i = -1; | |
3037 | break; | |
3038 | } | |
3039 | if (i == -1) | |
3040 | continue; | |
3041 | } | |
3042 | ||
3043 | psymtab_include_list[includes_used++] = namestring; | |
3044 | if (includes_used >= includes_allocated) | |
3045 | { | |
0d5cff50 | 3046 | const char **orig = psymtab_include_list; |
d3119d1e | 3047 | |
0d5cff50 | 3048 | psymtab_include_list = (const char **) |
d3119d1e | 3049 | alloca ((includes_allocated *= 2) * |
0d5cff50 | 3050 | sizeof (const char *)); |
4efb68b1 | 3051 | memcpy (psymtab_include_list, orig, |
0d5cff50 | 3052 | includes_used * sizeof (const char *)); |
d3119d1e EZ |
3053 | } |
3054 | continue; | |
3055 | } | |
025bb325 | 3056 | case N_LSYM: /* Typedef or automatic variable. */ |
3e43a32a MS |
3057 | case N_STSYM: /* Data seg var -- static */ |
3058 | case N_LCSYM: /* BSS " */ | |
3059 | case N_ROSYM: /* Read-only data seg var -- static. */ | |
3060 | case N_NBSTS: /* Gould nobase. */ | |
3061 | case N_NBLCS: /* symbols. */ | |
d3119d1e | 3062 | case N_FUN: |
3e43a32a MS |
3063 | case N_GSYM: /* Global (extern) variable; can be |
3064 | data or bss (sigh FIXME). */ | |
d3119d1e EZ |
3065 | |
3066 | /* Following may probably be ignored; I'll leave them here | |
3067 | for now (until I do Pascal and Modula 2 extensions). */ | |
3068 | ||
3e43a32a MS |
3069 | case N_PC: /* I may or may not need this; I |
3070 | suspect not. */ | |
3071 | case N_M2C: /* I suspect that I can ignore this | |
025bb325 MS |
3072 | here. */ |
3073 | case N_SCOPE: /* Same. */ | |
d3119d1e | 3074 | |
025bb325 | 3075 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
3076 | namestring = stabstring; |
3077 | p = (char *) strchr (namestring, ':'); | |
3078 | if (!p) | |
025bb325 | 3079 | continue; /* Not a debugging symbol. */ |
d3119d1e EZ |
3080 | |
3081 | ||
3082 | ||
3083 | /* Main processing section for debugging symbols which | |
3e43a32a MS |
3084 | the initial read through the symbol tables needs to |
3085 | worry about. If we reach this point, the symbol | |
3086 | which we are considering is definitely one we are | |
3087 | interested in. p must also contain the (valid) | |
3088 | index into the namestring which indicates the | |
3089 | debugging type symbol. */ | |
d3119d1e EZ |
3090 | |
3091 | switch (p[1]) | |
3092 | { | |
3093 | case 'S': | |
3e43a32a MS |
3094 | sh.value += ANOFFSET (objfile->section_offsets, |
3095 | SECT_OFF_DATA (objfile)); | |
149ad273 | 3096 | |
5e2b427d | 3097 | if (gdbarch_static_transform_name_p (gdbarch)) |
149ad273 | 3098 | namestring = gdbarch_static_transform_name |
5e2b427d | 3099 | (gdbarch, namestring); |
149ad273 | 3100 | |
04a679b8 | 3101 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3102 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e | 3103 | &objfile->static_psymbols, |
1762568f | 3104 | sh.value, |
d3119d1e EZ |
3105 | psymtab_language, objfile); |
3106 | continue; | |
3107 | case 'G': | |
3e43a32a MS |
3108 | sh.value += ANOFFSET (objfile->section_offsets, |
3109 | SECT_OFF_DATA (objfile)); | |
025bb325 MS |
3110 | /* The addresses in these entries are reported |
3111 | to be wrong. See the code that reads 'G's | |
3112 | for symtabs. */ | |
04a679b8 | 3113 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3114 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e | 3115 | &objfile->global_psymbols, |
1762568f | 3116 | sh.value, |
d3119d1e EZ |
3117 | psymtab_language, objfile); |
3118 | continue; | |
3119 | ||
3120 | case 'T': | |
3121 | /* When a 'T' entry is defining an anonymous enum, it | |
3122 | may have a name which is the empty string, or a | |
3123 | single space. Since they're not really defining a | |
3124 | symbol, those shouldn't go in the partial symbol | |
3125 | table. We do pick up the elements of such enums at | |
3126 | 'check_enum:', below. */ | |
3127 | if (p >= namestring + 2 | |
3128 | || (p == namestring + 1 | |
3129 | && namestring[0] != ' ')) | |
3130 | { | |
04a679b8 | 3131 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3132 | STRUCT_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3133 | &objfile->static_psymbols, |
1762568f | 3134 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3135 | if (p[2] == 't') |
3136 | { | |
3137 | /* Also a typedef with the same name. */ | |
3e43a32a MS |
3138 | add_psymbol_to_list (namestring, |
3139 | p - namestring, 1, | |
176620f1 | 3140 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3141 | &objfile->static_psymbols, |
1762568f | 3142 | 0, psymtab_language, |
3e43a32a | 3143 | objfile); |
d3119d1e EZ |
3144 | p += 1; |
3145 | } | |
d3119d1e EZ |
3146 | } |
3147 | goto check_enum; | |
3148 | case 't': | |
3e43a32a | 3149 | if (p != namestring) /* a name is there, not |
025bb325 | 3150 | just :T... */ |
d3119d1e | 3151 | { |
04a679b8 | 3152 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3153 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3154 | &objfile->static_psymbols, |
1762568f | 3155 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3156 | } |
3157 | check_enum: | |
3e43a32a MS |
3158 | /* If this is an enumerated type, we need to add |
3159 | all the enum constants to the partial symbol | |
3160 | table. This does not cover enums without names, | |
025bb325 | 3161 | e.g. "enum {a, b} c;" in C, but fortunately |
3e43a32a MS |
3162 | those are rare. There is no way for GDB to find |
3163 | those from the enum type without spending too | |
3164 | much time on it. Thus to solve this problem, | |
3165 | the compiler needs to put out the enum in a | |
3166 | nameless type. GCC2 does this. */ | |
d3119d1e EZ |
3167 | |
3168 | /* We are looking for something of the form | |
3169 | <name> ":" ("t" | "T") [<number> "="] "e" | |
3170 | {<constant> ":" <value> ","} ";". */ | |
3171 | ||
3172 | /* Skip over the colon and the 't' or 'T'. */ | |
3173 | p += 2; | |
3e43a32a MS |
3174 | /* This type may be given a number. Also, numbers |
3175 | can come in pairs like (0,26). Skip over it. */ | |
d3119d1e EZ |
3176 | while ((*p >= '0' && *p <= '9') |
3177 | || *p == '(' || *p == ',' || *p == ')' | |
3178 | || *p == '=') | |
3179 | p++; | |
3180 | ||
3181 | if (*p++ == 'e') | |
3182 | { | |
3e43a32a MS |
3183 | /* The aix4 compiler emits extra crud before |
3184 | the members. */ | |
d3119d1e EZ |
3185 | if (*p == '-') |
3186 | { | |
3187 | /* Skip over the type (?). */ | |
3188 | while (*p != ':') | |
3189 | p++; | |
3190 | ||
3191 | /* Skip over the colon. */ | |
3192 | p++; | |
3193 | } | |
3194 | ||
3195 | /* We have found an enumerated type. */ | |
3196 | /* According to comments in read_enum_type | |
3197 | a comma could end it instead of a semicolon. | |
3198 | I don't know where that happens. | |
3199 | Accept either. */ | |
3200 | while (*p && *p != ';' && *p != ',') | |
3201 | { | |
a121b7c1 | 3202 | const char *q; |
d3119d1e | 3203 | |
3e43a32a MS |
3204 | /* Check for and handle cretinous dbx |
3205 | symbol name continuation! */ | |
d3119d1e EZ |
3206 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) |
3207 | p = next_symbol_text (objfile); | |
3208 | ||
3209 | /* Point to the character after the name | |
3210 | of the enum constant. */ | |
3211 | for (q = p; *q && *q != ':'; q++) | |
3212 | ; | |
3213 | /* Note that the value doesn't matter for | |
3e43a32a MS |
3214 | enum constants in psymtabs, just in |
3215 | symtabs. */ | |
04a679b8 | 3216 | add_psymbol_to_list (p, q - p, 1, |
176620f1 | 3217 | VAR_DOMAIN, LOC_CONST, |
3e43a32a | 3218 | &objfile->static_psymbols, |
1762568f | 3219 | 0, psymtab_language, |
3e43a32a | 3220 | objfile); |
d3119d1e EZ |
3221 | /* Point past the name. */ |
3222 | p = q; | |
3223 | /* Skip over the value. */ | |
3224 | while (*p && *p != ',') | |
3225 | p++; | |
3226 | /* Advance past the comma. */ | |
3227 | if (*p) | |
3228 | p++; | |
3229 | } | |
3230 | } | |
3231 | continue; | |
3232 | case 'c': | |
3233 | /* Constant, e.g. from "const" in Pascal. */ | |
04a679b8 | 3234 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3235 | VAR_DOMAIN, LOC_CONST, |
3e43a32a | 3236 | &objfile->static_psymbols, |
1762568f | 3237 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3238 | continue; |
3239 | ||
3240 | case 'f': | |
3241 | if (! pst) | |
3242 | { | |
3243 | int name_len = p - namestring; | |
224c3ddb | 3244 | char *name = (char *) xmalloc (name_len + 1); |
b8d56208 | 3245 | |
d3119d1e EZ |
3246 | memcpy (name, namestring, name_len); |
3247 | name[name_len] = '\0'; | |
23136709 | 3248 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3249 | xfree (name); |
3250 | } | |
3e43a32a MS |
3251 | sh.value += ANOFFSET (objfile->section_offsets, |
3252 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3253 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3254 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e | 3255 | &objfile->static_psymbols, |
1762568f | 3256 | sh.value, |
d3119d1e EZ |
3257 | psymtab_language, objfile); |
3258 | continue; | |
3259 | ||
3260 | /* Global functions were ignored here, but now they | |
3e43a32a MS |
3261 | are put into the global psymtab like one would |
3262 | expect. They're also in the minimal symbol | |
3263 | table. */ | |
d3119d1e EZ |
3264 | case 'F': |
3265 | if (! pst) | |
3266 | { | |
3267 | int name_len = p - namestring; | |
224c3ddb | 3268 | char *name = (char *) xmalloc (name_len + 1); |
b8d56208 | 3269 | |
d3119d1e EZ |
3270 | memcpy (name, namestring, name_len); |
3271 | name[name_len] = '\0'; | |
23136709 | 3272 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3273 | xfree (name); |
3274 | } | |
3e43a32a MS |
3275 | sh.value += ANOFFSET (objfile->section_offsets, |
3276 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3277 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3278 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e | 3279 | &objfile->global_psymbols, |
1762568f | 3280 | sh.value, |
d3119d1e EZ |
3281 | psymtab_language, objfile); |
3282 | continue; | |
3283 | ||
3e43a32a MS |
3284 | /* Two things show up here (hopefully); static |
3285 | symbols of local scope (static used inside | |
3286 | braces) or extensions of structure symbols. We | |
3287 | can ignore both. */ | |
d3119d1e EZ |
3288 | case 'V': |
3289 | case '(': | |
3290 | case '0': | |
3291 | case '1': | |
3292 | case '2': | |
3293 | case '3': | |
3294 | case '4': | |
3295 | case '5': | |
3296 | case '6': | |
3297 | case '7': | |
3298 | case '8': | |
3299 | case '9': | |
3300 | case '-': | |
3e43a32a MS |
3301 | case '#': /* For symbol identification (used |
3302 | in live ranges). */ | |
d3119d1e EZ |
3303 | continue; |
3304 | ||
3305 | case ':': | |
3e43a32a MS |
3306 | /* It is a C++ nested symbol. We don't need to |
3307 | record it (I don't think); if we try to look up | |
3308 | foo::bar::baz, then symbols for the symtab | |
3309 | containing foo should get read in, I think. */ | |
d3119d1e EZ |
3310 | /* Someone says sun cc puts out symbols like |
3311 | /foo/baz/maclib::/usr/local/bin/maclib, | |
3312 | which would get here with a symbol type of ':'. */ | |
3313 | continue; | |
3314 | ||
3315 | default: | |
3e43a32a MS |
3316 | /* Unexpected symbol descriptor. The second and |
3317 | subsequent stabs of a continued stab can show up | |
3318 | here. The question is whether they ever can | |
3319 | mimic a normal stab--it would be nice if not, | |
3320 | since we certainly don't want to spend the time | |
3321 | searching to the end of every string looking for | |
d3119d1e EZ |
3322 | a backslash. */ |
3323 | ||
23136709 | 3324 | complaint (&symfile_complaints, |
e2e0b3e5 | 3325 | _("unknown symbol descriptor `%c'"), p[1]); |
d3119d1e EZ |
3326 | |
3327 | /* Ignore it; perhaps it is an extension that we don't | |
3328 | know about. */ | |
3329 | continue; | |
3330 | } | |
3331 | ||
3332 | case N_EXCL: | |
3333 | continue; | |
3334 | ||
3335 | case N_ENDM: | |
5afc051b | 3336 | /* Solaris 2 end of module, finish current partial |
8763cede | 3337 | symbol table. dbx_end_psymtab will set |
5afc051b JB |
3338 | pst->texthigh to the proper value, which is |
3339 | necessary if a module compiled without | |
3340 | debugging info follows this module. */ | |
203c3895 | 3341 | if (pst |
5e2b427d | 3342 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
d3119d1e EZ |
3343 | { |
3344 | pst = (struct partial_symtab *) 0; | |
3345 | includes_used = 0; | |
3346 | dependencies_used = 0; | |
3347 | } | |
d3119d1e EZ |
3348 | continue; |
3349 | ||
3350 | case N_RBRAC: | |
5afc051b JB |
3351 | if (sh.value > save_pst->texthigh) |
3352 | save_pst->texthigh = sh.value; | |
d3119d1e EZ |
3353 | continue; |
3354 | case N_EINCL: | |
3355 | case N_DSLINE: | |
3356 | case N_BSLINE: | |
3e43a32a MS |
3357 | case N_SSYM: /* Claim: Structure or union |
3358 | element. Hopefully, I can | |
3359 | ignore this. */ | |
3360 | case N_ENTRY: /* Alternate entry point; can | |
025bb325 | 3361 | ignore. */ |
3e43a32a | 3362 | case N_MAIN: /* Can definitely ignore this. */ |
025bb325 MS |
3363 | case N_CATCH: /* These are GNU C++ extensions. */ |
3364 | case N_EHDECL: /* that can safely be ignored here. */ | |
d3119d1e EZ |
3365 | case N_LENG: |
3366 | case N_BCOMM: | |
3367 | case N_ECOMM: | |
3368 | case N_ECOML: | |
3369 | case N_FNAME: | |
3370 | case N_SLINE: | |
3371 | case N_RSYM: | |
3372 | case N_PSYM: | |
3373 | case N_LBRAC: | |
3374 | case N_NSYMS: /* Ultrix 4.0: symbol count */ | |
3375 | case N_DEFD: /* GNU Modula-2 */ | |
3e43a32a MS |
3376 | case N_ALIAS: /* SunPro F77: alias name, ignore |
3377 | for now. */ | |
d3119d1e | 3378 | |
025bb325 | 3379 | case N_OBJ: /* Useless types from Solaris. */ |
d3119d1e | 3380 | case N_OPT: |
3e43a32a | 3381 | /* These symbols aren't interesting; don't worry about |
025bb325 | 3382 | them. */ |
d3119d1e EZ |
3383 | |
3384 | continue; | |
3385 | ||
3386 | default: | |
3e43a32a MS |
3387 | /* If we haven't found it yet, ignore it. It's |
3388 | probably some new type we don't know about yet. */ | |
3389 | complaint (&symfile_complaints, | |
3390 | _("unknown symbol type %s"), | |
025bb325 | 3391 | hex_string (type_code)); /* CUR_SYMBOL_TYPE */ |
d3119d1e EZ |
3392 | continue; |
3393 | } | |
c5aa993b | 3394 | if (stabstring |
c906108c | 3395 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
b8c9b27d | 3396 | xfree (stabstring); |
c906108c | 3397 | } |
c5aa993b | 3398 | /* end - Handle continuation */ |
c906108c SS |
3399 | } |
3400 | } | |
3401 | else | |
3402 | { | |
3403 | for (cur_sdx = 0; cur_sdx < fh->csym;) | |
3404 | { | |
3405 | char *name; | |
fe978cb0 | 3406 | enum address_class theclass; |
2273f0ac | 3407 | CORE_ADDR minsym_value; |
c906108c SS |
3408 | |
3409 | (*swap_sym_in) (cur_bfd, | |
3410 | ((char *) debug_info->external_sym | |
3411 | + ((fh->isymBase + cur_sdx) | |
3412 | * external_sym_size)), | |
3413 | &sh); | |
3414 | ||
3415 | if (ECOFF_IS_STAB (&sh)) | |
3416 | { | |
3417 | cur_sdx++; | |
3418 | continue; | |
3419 | } | |
3420 | ||
3421 | /* Non absolute static symbols go into the minimal table. */ | |
c5aa993b | 3422 | if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil |
c906108c SS |
3423 | || (sh.index == indexNil |
3424 | && (sh.st != stStatic || sh.sc == scAbs))) | |
3425 | { | |
025bb325 | 3426 | /* FIXME, premature? */ |
c906108c SS |
3427 | cur_sdx++; |
3428 | continue; | |
3429 | } | |
3430 | ||
3431 | name = debug_info->ss + fh->issBase + sh.iss; | |
3432 | ||
2273f0ac TT |
3433 | minsym_value = sh.value; |
3434 | ||
c906108c SS |
3435 | switch (sh.sc) |
3436 | { | |
3437 | case scText: | |
3438 | case scRConst: | |
3439 | /* The value of a stEnd symbol is the displacement from the | |
3440 | corresponding start symbol value, do not relocate it. */ | |
3441 | if (sh.st != stEnd) | |
3e43a32a MS |
3442 | sh.value += ANOFFSET (objfile->section_offsets, |
3443 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3444 | break; |
3445 | case scData: | |
3446 | case scSData: | |
3447 | case scRData: | |
3448 | case scPData: | |
3449 | case scXData: | |
3e43a32a MS |
3450 | sh.value += ANOFFSET (objfile->section_offsets, |
3451 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3452 | break; |
3453 | case scBss: | |
3454 | case scSBss: | |
3e43a32a MS |
3455 | sh.value += ANOFFSET (objfile->section_offsets, |
3456 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3457 | break; |
3458 | } | |
3459 | ||
3460 | switch (sh.st) | |
3461 | { | |
3462 | CORE_ADDR high; | |
3463 | CORE_ADDR procaddr; | |
3464 | int new_sdx; | |
3465 | ||
3466 | case stStaticProc: | |
8dddcb8f TT |
3467 | reader.record_with_info (name, minsym_value, |
3468 | mst_file_text, | |
3469 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3470 | |
3471 | /* FALLTHROUGH */ | |
3472 | ||
3473 | case stProc: | |
1fb4c65b JB |
3474 | /* Ignore all parameter symbol records. */ |
3475 | if (sh.index >= hdr->iauxMax) | |
3476 | { | |
3477 | /* Should not happen, but does when cross-compiling | |
3478 | with the MIPS compiler. FIXME -- pull later. */ | |
3479 | index_complaint (name); | |
025bb325 | 3480 | new_sdx = cur_sdx + 1; /* Don't skip at all. */ |
1fb4c65b JB |
3481 | } |
3482 | else | |
3483 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
3484 | (debug_info->external_aux | |
3485 | + fh->iauxBase | |
3486 | + sh.index)); | |
3487 | ||
3488 | if (new_sdx <= cur_sdx) | |
3489 | { | |
3490 | /* This should not happen either... FIXME. */ | |
3491 | complaint (&symfile_complaints, | |
e2e0b3e5 | 3492 | _("bad proc end in aux found from symbol %s"), |
1fb4c65b | 3493 | name); |
025bb325 | 3494 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
1fb4c65b JB |
3495 | } |
3496 | ||
3497 | /* For stProc symbol records, we need to check the | |
3498 | storage class as well, as only (stProc, scText) | |
3499 | entries represent "real" procedures - See the | |
3500 | Compaq document titled "Object File / Symbol Table | |
3501 | Format Specification" for more information. If the | |
3502 | storage class is not scText, we discard the whole | |
3503 | block of symbol records for this stProc. */ | |
3504 | if (sh.st == stProc && sh.sc != scText) | |
3505 | goto skip; | |
3506 | ||
c906108c | 3507 | /* Usually there is a local and a global stProc symbol |
025bb325 | 3508 | for a function. This means that the function name |
c906108c SS |
3509 | has already been entered into the mimimal symbol table |
3510 | while processing the global symbols in pass 2 above. | |
3511 | One notable exception is the PROGRAM name from | |
3512 | f77 compiled executables, it is only put out as | |
3513 | local stProc symbol, and a global MAIN__ stProc symbol | |
3514 | points to it. It doesn't matter though, as gdb is | |
3515 | still able to find the PROGRAM name via the partial | |
3516 | symbol table, and the MAIN__ symbol via the minimal | |
3517 | symbol table. */ | |
3518 | if (sh.st == stProc) | |
04a679b8 | 3519 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3520 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3521 | &objfile->global_psymbols, |
1762568f | 3522 | sh.value, psymtab_language, objfile); |
c906108c | 3523 | else |
04a679b8 | 3524 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3525 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3526 | &objfile->static_psymbols, |
1762568f | 3527 | sh.value, psymtab_language, objfile); |
c906108c | 3528 | |
c906108c SS |
3529 | procaddr = sh.value; |
3530 | ||
c906108c SS |
3531 | cur_sdx = new_sdx; |
3532 | (*swap_sym_in) (cur_bfd, | |
3533 | ((char *) debug_info->external_sym | |
3534 | + ((fh->isymBase + cur_sdx - 1) | |
3535 | * external_sym_size)), | |
3536 | &sh); | |
3537 | if (sh.st != stEnd) | |
3538 | continue; | |
3539 | ||
3540 | /* Kludge for Irix 5.2 zero fh->adr. */ | |
3541 | if (!relocatable | |
5afc051b JB |
3542 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
3543 | pst->textlow = procaddr; | |
c906108c SS |
3544 | |
3545 | high = procaddr + sh.value; | |
5afc051b JB |
3546 | if (high > pst->texthigh) |
3547 | pst->texthigh = high; | |
c906108c SS |
3548 | continue; |
3549 | ||
3550 | case stStatic: /* Variable */ | |
c5aa993b | 3551 | if (SC_IS_DATA (sh.sc)) |
8dddcb8f TT |
3552 | reader.record_with_info (name, minsym_value, |
3553 | mst_file_data, | |
3554 | SECT_OFF_DATA (objfile)); | |
c906108c | 3555 | else |
8dddcb8f TT |
3556 | reader.record_with_info (name, minsym_value, |
3557 | mst_file_bss, | |
3558 | SECT_OFF_BSS (objfile)); | |
fe978cb0 | 3559 | theclass = LOC_STATIC; |
c906108c SS |
3560 | break; |
3561 | ||
c5aa993b | 3562 | case stIndirect: /* Irix5 forward declaration */ |
025bb325 | 3563 | /* Skip forward declarations from Irix5 cc. */ |
c906108c SS |
3564 | goto skip; |
3565 | ||
c5aa993b | 3566 | case stTypedef: /* Typedef */ |
c906108c SS |
3567 | /* Skip typedefs for forward declarations and opaque |
3568 | structs from alpha and mips cc. */ | |
3569 | if (sh.iss == 0 || has_opaque_xref (fh, &sh)) | |
3570 | goto skip; | |
fe978cb0 | 3571 | theclass = LOC_TYPEDEF; |
c906108c SS |
3572 | break; |
3573 | ||
3574 | case stConstant: /* Constant decl */ | |
fe978cb0 | 3575 | theclass = LOC_CONST; |
c906108c SS |
3576 | break; |
3577 | ||
3578 | case stUnion: | |
3579 | case stStruct: | |
3580 | case stEnum: | |
c5aa993b | 3581 | case stBlock: /* { }, str, un, enum */ |
c906108c | 3582 | /* Do not create a partial symbol for cc unnamed aggregates |
025bb325 | 3583 | and gcc empty aggregates. */ |
c906108c | 3584 | if ((sh.sc == scInfo |
c5aa993b | 3585 | || SC_IS_COMMON (sh.sc)) |
c906108c SS |
3586 | && sh.iss != 0 |
3587 | && sh.index != cur_sdx + 2) | |
3588 | { | |
04a679b8 | 3589 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3590 | STRUCT_DOMAIN, LOC_TYPEDEF, |
c906108c | 3591 | &objfile->static_psymbols, |
1762568f | 3592 | 0, psymtab_language, objfile); |
c906108c SS |
3593 | } |
3594 | handle_psymbol_enumerators (objfile, fh, sh.st, sh.value); | |
3595 | ||
025bb325 | 3596 | /* Skip over the block. */ |
c906108c SS |
3597 | new_sdx = sh.index; |
3598 | if (new_sdx <= cur_sdx) | |
3599 | { | |
025bb325 | 3600 | /* This happens with the Ultrix kernel. */ |
23136709 | 3601 | complaint (&symfile_complaints, |
e2e0b3e5 | 3602 | _("bad aux index at block symbol %s"), name); |
025bb325 | 3603 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
c906108c SS |
3604 | } |
3605 | cur_sdx = new_sdx; | |
3606 | continue; | |
3607 | ||
3608 | case stFile: /* File headers */ | |
3609 | case stLabel: /* Labels */ | |
3610 | case stEnd: /* Ends of files */ | |
3611 | goto skip; | |
3612 | ||
3613 | case stLocal: /* Local variables */ | |
3614 | /* Normally these are skipped because we skip over | |
3615 | all blocks we see. However, these can occur | |
025bb325 | 3616 | as visible symbols in a .h file that contains code. */ |
c906108c SS |
3617 | goto skip; |
3618 | ||
3619 | default: | |
3620 | /* Both complaints are valid: one gives symbol name, | |
3621 | the other the offending symbol type. */ | |
e2e0b3e5 | 3622 | complaint (&symfile_complaints, _("unknown local symbol %s"), |
23136709 | 3623 | name); |
e2e0b3e5 | 3624 | complaint (&symfile_complaints, _("with type %d"), sh.st); |
c906108c SS |
3625 | cur_sdx++; |
3626 | continue; | |
3627 | } | |
025bb325 | 3628 | /* Use this gdb symbol. */ |
04a679b8 | 3629 | add_psymbol_to_list (name, strlen (name), 1, |
fe978cb0 | 3630 | VAR_DOMAIN, theclass, |
c906108c | 3631 | &objfile->static_psymbols, |
1762568f | 3632 | sh.value, psymtab_language, objfile); |
c906108c | 3633 | skip: |
025bb325 | 3634 | cur_sdx++; /* Go to next file symbol. */ |
c906108c SS |
3635 | } |
3636 | ||
025bb325 | 3637 | /* Now do enter the external symbols. */ |
c906108c SS |
3638 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; |
3639 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
3640 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
3641 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
3642 | for (; --cur_sdx >= 0; ext_ptr++) | |
3643 | { | |
fe978cb0 | 3644 | enum address_class theclass; |
c906108c SS |
3645 | SYMR *psh; |
3646 | char *name; | |
3647 | CORE_ADDR svalue; | |
3648 | ||
3649 | if (ext_ptr->ifd != f_idx) | |
3e43a32a MS |
3650 | internal_error (__FILE__, __LINE__, |
3651 | _("failed internal consistency check")); | |
c906108c SS |
3652 | psh = &ext_ptr->asym; |
3653 | ||
3654 | /* Do not add undefined symbols to the partial symbol table. */ | |
c5aa993b | 3655 | if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil) |
c906108c SS |
3656 | continue; |
3657 | ||
3658 | svalue = psh->value; | |
3659 | switch (psh->sc) | |
3660 | { | |
3661 | case scText: | |
3662 | case scRConst: | |
3e43a32a MS |
3663 | svalue += ANOFFSET (objfile->section_offsets, |
3664 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3665 | break; |
3666 | case scData: | |
3667 | case scSData: | |
3668 | case scRData: | |
3669 | case scPData: | |
3670 | case scXData: | |
3e43a32a MS |
3671 | svalue += ANOFFSET (objfile->section_offsets, |
3672 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3673 | break; |
3674 | case scBss: | |
3675 | case scSBss: | |
3e43a32a MS |
3676 | svalue += ANOFFSET (objfile->section_offsets, |
3677 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3678 | break; |
3679 | } | |
3680 | ||
3681 | switch (psh->st) | |
3682 | { | |
3683 | case stNil: | |
3684 | /* These are generated for static symbols in .o files, | |
3685 | ignore them. */ | |
3686 | continue; | |
3687 | case stProc: | |
3688 | case stStaticProc: | |
3689 | /* External procedure symbols have been entered | |
3690 | into the minimal symbol table in pass 2 above. | |
3691 | Ignore them, as parse_external will ignore them too. */ | |
3692 | continue; | |
3693 | case stLabel: | |
fe978cb0 | 3694 | theclass = LOC_LABEL; |
c906108c SS |
3695 | break; |
3696 | default: | |
23136709 | 3697 | unknown_ext_complaint (debug_info->ssext + psh->iss); |
86a73007 TT |
3698 | /* Pretend it's global. */ |
3699 | /* Fall through. */ | |
c906108c SS |
3700 | case stGlobal: |
3701 | /* Global common symbols are resolved by the runtime loader, | |
3702 | ignore them. */ | |
c5aa993b | 3703 | if (SC_IS_COMMON (psh->sc)) |
c906108c SS |
3704 | continue; |
3705 | ||
fe978cb0 | 3706 | theclass = LOC_STATIC; |
c906108c SS |
3707 | break; |
3708 | } | |
3709 | name = debug_info->ssext + psh->iss; | |
04a679b8 | 3710 | add_psymbol_to_list (name, strlen (name), 1, |
fe978cb0 | 3711 | VAR_DOMAIN, theclass, |
c906108c | 3712 | &objfile->global_psymbols, |
1762568f | 3713 | svalue, psymtab_language, objfile); |
c906108c SS |
3714 | } |
3715 | } | |
3716 | ||
8763cede | 3717 | /* Link pst to FDR. dbx_end_psymtab returns NULL if the psymtab was |
c5aa993b | 3718 | empty and put on the free list. */ |
8763cede DE |
3719 | fdr_to_pst[f_idx].pst |
3720 | = dbx_end_psymtab (objfile, save_pst, | |
3721 | psymtab_include_list, includes_used, | |
3722 | -1, save_pst->texthigh, | |
3723 | dependency_list, dependencies_used, | |
3724 | textlow_not_set); | |
c906108c SS |
3725 | includes_used = 0; |
3726 | dependencies_used = 0; | |
3727 | ||
c906108c | 3728 | /* The objfile has its functions reordered if this partial symbol |
c5aa993b JM |
3729 | table overlaps any other partial symbol table. |
3730 | We cannot assume a reordered objfile if a partial symbol table | |
3731 | is contained within another partial symbol table, as partial symbol | |
3732 | tables for include files with executable code are contained | |
3733 | within the partial symbol table for the including source file, | |
3734 | and we do not want to flag the objfile reordered for these cases. | |
3735 | ||
3736 | This strategy works well for Irix-5.2 shared libraries, but we | |
3737 | might have to use a more elaborate (and slower) algorithm for | |
3738 | other cases. */ | |
c906108c SS |
3739 | save_pst = fdr_to_pst[f_idx].pst; |
3740 | if (save_pst != NULL | |
5afc051b | 3741 | && save_pst->textlow != 0 |
c906108c SS |
3742 | && !(objfile->flags & OBJF_REORDERED)) |
3743 | { | |
3744 | ALL_OBJFILE_PSYMTABS (objfile, pst) | |
c5aa993b JM |
3745 | { |
3746 | if (save_pst != pst | |
5afc051b JB |
3747 | && save_pst->textlow >= pst->textlow |
3748 | && save_pst->textlow < pst->texthigh | |
3749 | && save_pst->texthigh > pst->texthigh) | |
c5aa993b JM |
3750 | { |
3751 | objfile->flags |= OBJF_REORDERED; | |
3752 | break; | |
3753 | } | |
3754 | } | |
c906108c SS |
3755 | } |
3756 | } | |
3757 | ||
025bb325 | 3758 | /* Now scan the FDRs for dependencies. */ |
c906108c SS |
3759 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
3760 | { | |
3761 | fh = f_idx + debug_info->fdr; | |
3762 | pst = fdr_to_pst[f_idx].pst; | |
3763 | ||
c5aa993b | 3764 | if (pst == (struct partial_symtab *) NULL) |
c906108c SS |
3765 | continue; |
3766 | ||
025bb325 | 3767 | /* This should catch stabs-in-ecoff. */ |
c906108c SS |
3768 | if (fh->crfd <= 1) |
3769 | continue; | |
3770 | ||
3e43a32a MS |
3771 | /* Skip the first file indirect entry as it is a self dependency for |
3772 | source files or a reverse .h -> .c dependency for header files. */ | |
c906108c SS |
3773 | pst->number_of_dependencies = 0; |
3774 | pst->dependencies = | |
3775 | ((struct partial_symtab **) | |
8b92e4d5 | 3776 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
3777 | ((fh->crfd - 1) |
3778 | * sizeof (struct partial_symtab *)))); | |
3779 | for (s_idx = 1; s_idx < fh->crfd; s_idx++) | |
3780 | { | |
3781 | RFDT rh; | |
3782 | ||
3783 | (*swap_rfd_in) (cur_bfd, | |
3784 | ((char *) debug_info->external_rfd | |
3785 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
3786 | &rh); | |
3787 | if (rh < 0 || rh >= hdr->ifdMax) | |
3788 | { | |
e2e0b3e5 | 3789 | complaint (&symfile_complaints, _("bad file number %ld"), rh); |
c906108c SS |
3790 | continue; |
3791 | } | |
3792 | ||
3793 | /* Skip self dependencies of header files. */ | |
3794 | if (rh == f_idx) | |
3795 | continue; | |
3796 | ||
3797 | /* Do not add to dependeny list if psymtab was empty. */ | |
c5aa993b | 3798 | if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL) |
c906108c | 3799 | continue; |
3e43a32a MS |
3800 | pst->dependencies[pst->number_of_dependencies++] |
3801 | = fdr_to_pst[rh].pst; | |
c906108c SS |
3802 | } |
3803 | } | |
3804 | ||
3805 | /* Remove the dummy psymtab created for -O3 images above, if it is | |
3806 | still empty, to enable the detection of stripped executables. */ | |
3807 | if (objfile->psymtabs->next == NULL | |
3808 | && objfile->psymtabs->number_of_dependencies == 0 | |
3809 | && objfile->psymtabs->n_global_syms == 0 | |
3810 | && objfile->psymtabs->n_static_syms == 0) | |
3811 | objfile->psymtabs = NULL; | |
c906108c SS |
3812 | } |
3813 | ||
3814 | /* If the current psymbol has an enumerated type, we need to add | |
b021a221 | 3815 | all the enum constants to the partial symbol table. */ |
c906108c SS |
3816 | |
3817 | static void | |
fba45db2 KB |
3818 | handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype, |
3819 | CORE_ADDR svalue) | |
c906108c SS |
3820 | { |
3821 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; | |
12b9c64f | 3822 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
c906108c | 3823 | char *ext_sym = ((char *) debug_info->external_sym |
c5aa993b | 3824 | + ((fh->isymBase + cur_sdx + 1) * external_sym_size)); |
c906108c SS |
3825 | SYMR sh; |
3826 | TIR tir; | |
3827 | ||
3828 | switch (stype) | |
3829 | { | |
3830 | case stEnum: | |
3831 | break; | |
3832 | ||
3833 | case stBlock: | |
3834 | /* It is an enumerated type if the next symbol entry is a stMember | |
c5aa993b JM |
3835 | and its auxiliary index is indexNil or its auxiliary entry |
3836 | is a plain btNil or btVoid. | |
3837 | Alpha cc -migrate enums are recognized by a zero index and | |
3838 | a zero symbol value. | |
3839 | DU 4.0 cc enums are recognized by a member type of btEnum without | |
3840 | qualifiers and a zero symbol value. */ | |
c906108c SS |
3841 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); |
3842 | if (sh.st != stMember) | |
3843 | return; | |
3844 | ||
3845 | if (sh.index == indexNil | |
3846 | || (sh.index == 0 && svalue == 0)) | |
3847 | break; | |
3848 | (*debug_swap->swap_tir_in) (fh->fBigendian, | |
3849 | &(debug_info->external_aux | |
3850 | + fh->iauxBase + sh.index)->a_ti, | |
3851 | &tir); | |
3852 | if ((tir.bt != btNil | |
3853 | && tir.bt != btVoid | |
3854 | && (tir.bt != btEnum || svalue != 0)) | |
3855 | || tir.tq0 != tqNil) | |
3856 | return; | |
3857 | break; | |
3858 | ||
3859 | default: | |
3860 | return; | |
3861 | } | |
3862 | ||
3863 | for (;;) | |
3864 | { | |
3865 | char *name; | |
3866 | ||
3867 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); | |
3868 | if (sh.st != stMember) | |
3869 | break; | |
3870 | name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
3871 | ||
3872 | /* Note that the value doesn't matter for enum constants | |
c5aa993b | 3873 | in psymtabs, just in symtabs. */ |
04a679b8 | 3874 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3875 | VAR_DOMAIN, LOC_CONST, |
1762568f DE |
3876 | &objfile->static_psymbols, |
3877 | 0, psymtab_language, objfile); | |
c906108c SS |
3878 | ext_sym += external_sym_size; |
3879 | } | |
3880 | } | |
3881 | ||
025bb325 | 3882 | /* Get the next symbol. OBJFILE is unused. */ |
0e7e8d51 | 3883 | |
a121b7c1 | 3884 | static const char * |
0e7e8d51 | 3885 | mdebug_next_symbol_text (struct objfile *objfile) |
c906108c SS |
3886 | { |
3887 | SYMR sh; | |
3888 | ||
3889 | cur_sdx++; | |
3890 | (*debug_swap->swap_sym_in) (cur_bfd, | |
3891 | ((char *) debug_info->external_sym | |
3892 | + ((cur_fdr->isymBase + cur_sdx) | |
3893 | * debug_swap->external_sym_size)), | |
3894 | &sh); | |
3895 | return debug_info->ss + cur_fdr->issBase + sh.iss; | |
3896 | } | |
3897 | ||
3898 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
3899 | for turning the partial symtab PST into a symtab, recurring | |
3900 | first on all dependent psymtabs. The argument FILENAME is | |
3901 | only passed so we can see in debug stack traces what file | |
3902 | is being read. | |
3903 | ||
3904 | This function has a split personality, based on whether the | |
3905 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
3906 | The flow of control and even the memory allocation differs. FIXME. */ | |
3907 | ||
3908 | static void | |
5c80ed9d TT |
3909 | psymtab_to_symtab_1 (struct objfile *objfile, |
3910 | struct partial_symtab *pst, const char *filename) | |
c906108c SS |
3911 | { |
3912 | bfd_size_type external_sym_size; | |
3913 | bfd_size_type external_pdr_size; | |
12b9c64f AO |
3914 | void (*swap_sym_in) (bfd *, void *, SYMR *); |
3915 | void (*swap_pdr_in) (bfd *, void *, PDR *); | |
c906108c | 3916 | int i; |
43f3e411 | 3917 | struct compunit_symtab *cust = NULL; |
c906108c SS |
3918 | FDR *fh; |
3919 | struct linetable *lines; | |
3920 | CORE_ADDR lowest_pdr_addr = 0; | |
16db6055 | 3921 | int last_symtab_ended = 0; |
18a94d75 | 3922 | struct section_offsets *section_offsets = objfile->section_offsets; |
c906108c SS |
3923 | |
3924 | if (pst->readin) | |
3925 | return; | |
3926 | pst->readin = 1; | |
3927 | ||
3928 | /* Read in all partial symbtabs on which this one is dependent. | |
3929 | NOTE that we do have circular dependencies, sigh. We solved | |
3930 | that by setting pst->readin before this point. */ | |
3931 | ||
3932 | for (i = 0; i < pst->number_of_dependencies; i++) | |
3933 | if (!pst->dependencies[i]->readin) | |
3934 | { | |
3935 | /* Inform about additional files to be read in. */ | |
3936 | if (info_verbose) | |
3937 | { | |
3938 | fputs_filtered (" ", gdb_stdout); | |
3939 | wrap_here (""); | |
3940 | fputs_filtered ("and ", gdb_stdout); | |
3941 | wrap_here (""); | |
3942 | printf_filtered ("%s...", | |
3943 | pst->dependencies[i]->filename); | |
3944 | wrap_here (""); /* Flush output */ | |
3945 | gdb_flush (gdb_stdout); | |
3946 | } | |
025bb325 | 3947 | /* We only pass the filename for debug purposes. */ |
5c80ed9d | 3948 | psymtab_to_symtab_1 (objfile, pst->dependencies[i], |
c906108c SS |
3949 | pst->dependencies[i]->filename); |
3950 | } | |
3951 | ||
3952 | /* Do nothing if this is a dummy psymtab. */ | |
3953 | ||
3954 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
5afc051b | 3955 | && pst->textlow == 0 && pst->texthigh == 0) |
c906108c SS |
3956 | return; |
3957 | ||
025bb325 | 3958 | /* Now read the symbols for this symtab. */ |
c906108c SS |
3959 | |
3960 | cur_bfd = CUR_BFD (pst); | |
3961 | debug_swap = DEBUG_SWAP (pst); | |
3962 | debug_info = DEBUG_INFO (pst); | |
3963 | pending_list = PENDING_LIST (pst); | |
3964 | external_sym_size = debug_swap->external_sym_size; | |
3965 | external_pdr_size = debug_swap->external_pdr_size; | |
3966 | swap_sym_in = debug_swap->swap_sym_in; | |
3967 | swap_pdr_in = debug_swap->swap_pdr_in; | |
5c80ed9d | 3968 | mdebugread_objfile = objfile; |
c906108c SS |
3969 | cur_fd = FDR_IDX (pst); |
3970 | fh = ((cur_fd == -1) | |
3971 | ? (FDR *) NULL | |
3972 | : debug_info->fdr + cur_fd); | |
3973 | cur_fdr = fh; | |
3974 | ||
025bb325 | 3975 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
c906108c SS |
3976 | processing_gcc_compilation = 0; |
3977 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
3978 | { | |
3979 | SYMR sh; | |
3980 | ||
3981 | (*swap_sym_in) (cur_bfd, | |
3982 | ((char *) debug_info->external_sym | |
3983 | + (fh->isymBase + 1) * external_sym_size), | |
3984 | &sh); | |
ee300cd4 AC |
3985 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
3986 | stabs_symbol) == 0) | |
c906108c SS |
3987 | { |
3988 | /* We indicate that this is a GCC compilation so that certain | |
3989 | features will be enabled in stabsread/dbxread. */ | |
3990 | processing_gcc_compilation = 2; | |
3991 | } | |
3992 | } | |
3993 | ||
3994 | if (processing_gcc_compilation != 0) | |
3995 | { | |
5c80ed9d | 3996 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
3997 | |
3998 | /* This symbol table contains stabs-in-ecoff entries. */ | |
3999 | ||
025bb325 | 4000 | /* Parse local symbols first. */ |
c906108c | 4001 | |
025bb325 | 4002 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr. */ |
c906108c | 4003 | { |
dd707e8e | 4004 | mdebugread_objfile = NULL; |
c906108c SS |
4005 | return; |
4006 | } | |
4007 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
4008 | { | |
4009 | SYMR sh; | |
4010 | char *name; | |
4011 | CORE_ADDR valu; | |
4012 | ||
4013 | (*swap_sym_in) (cur_bfd, | |
4014 | (((char *) debug_info->external_sym) | |
4015 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
4016 | &sh); | |
4017 | name = debug_info->ss + fh->issBase + sh.iss; | |
4018 | valu = sh.value; | |
4019 | /* XXX This is a hack. It will go away! */ | |
4020 | if (ECOFF_IS_STAB (&sh) || (name[0] == '#')) | |
4021 | { | |
4022 | int type_code = ECOFF_UNMARK_STAB (sh.index); | |
5ffa0793 | 4023 | enum language language = PST_PRIVATE (pst)->pst_language; |
c906108c SS |
4024 | |
4025 | /* We should never get non N_STAB symbols here, but they | |
c5aa993b JM |
4026 | should be harmless, so keep process_one_symbol from |
4027 | complaining about them. */ | |
c906108c SS |
4028 | if (type_code & N_STAB) |
4029 | { | |
16db6055 EZ |
4030 | /* If we found a trailing N_SO with no name, process |
4031 | it here instead of in process_one_symbol, so we | |
4032 | can keep a handle to its symtab. The symtab | |
4033 | would otherwise be ended twice, once in | |
025bb325 | 4034 | process_one_symbol, and once after this loop. */ |
16db6055 | 4035 | if (type_code == N_SO |
46212e0b | 4036 | && get_last_source_file () |
16db6055 EZ |
4037 | && previous_stab_code != (unsigned char) N_SO |
4038 | && *name == '\000') | |
4039 | { | |
18a94d75 | 4040 | valu += ANOFFSET (section_offsets, |
5c80ed9d | 4041 | SECT_OFF_TEXT (objfile)); |
16db6055 | 4042 | previous_stab_code = N_SO; |
43f3e411 | 4043 | cust = end_symtab (valu, SECT_OFF_TEXT (objfile)); |
16db6055 EZ |
4044 | end_stabs (); |
4045 | last_symtab_ended = 1; | |
4046 | } | |
4047 | else | |
4048 | { | |
4049 | last_symtab_ended = 0; | |
4050 | process_one_symbol (type_code, 0, valu, name, | |
5ffa0793 | 4051 | section_offsets, objfile, language); |
16db6055 | 4052 | } |
c906108c SS |
4053 | } |
4054 | /* Similarly a hack. */ | |
4055 | else if (name[0] == '#') | |
4056 | { | |
4057 | process_one_symbol (N_SLINE, 0, valu, name, | |
5ffa0793 | 4058 | section_offsets, objfile, language); |
c906108c SS |
4059 | } |
4060 | if (type_code == N_FUN) | |
4061 | { | |
4062 | /* Make up special symbol to contain | |
025bb325 | 4063 | procedure specific info. */ |
f92761ec | 4064 | struct mdebug_extra_func_info *e = |
b8d56208 | 4065 | ((struct mdebug_extra_func_info *) |
dd707e8e | 4066 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
b8d56208 | 4067 | sizeof (struct mdebug_extra_func_info))); |
f92761ec | 4068 | struct symbol *s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
c906108c | 4069 | |
f92761ec | 4070 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); |
176620f1 | 4071 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
f1e6e072 | 4072 | SYMBOL_ACLASS_INDEX (s) = LOC_CONST; |
5c80ed9d | 4073 | SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_void; |
9918cab9 | 4074 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
4075 | e->pdr.framereg = -1; |
4076 | add_symbol_to_list (s, &local_symbols); | |
4077 | } | |
4078 | } | |
4079 | else if (sh.st == stLabel) | |
4080 | { | |
4081 | if (sh.index == indexNil) | |
4082 | { | |
4083 | /* This is what the gcc2_compiled and __gnu_compiled_* | |
4084 | show up as. So don't complain. */ | |
4085 | ; | |
4086 | } | |
4087 | else | |
4088 | { | |
025bb325 | 4089 | /* Handle encoded stab line number. */ |
18a94d75 | 4090 | valu += ANOFFSET (section_offsets, |
5c80ed9d | 4091 | SECT_OFF_TEXT (objfile)); |
fbf65064 UW |
4092 | record_line (current_subfile, sh.index, |
4093 | gdbarch_addr_bits_remove (gdbarch, valu)); | |
c906108c SS |
4094 | } |
4095 | } | |
4096 | else if (sh.st == stProc || sh.st == stStaticProc | |
4097 | || sh.st == stStatic || sh.st == stEnd) | |
025bb325 | 4098 | /* These are generated by gcc-2.x, do not complain. */ |
c906108c SS |
4099 | ; |
4100 | else | |
3e43a32a MS |
4101 | complaint (&symfile_complaints, |
4102 | _("unknown stabs symbol %s"), name); | |
c906108c | 4103 | } |
16db6055 EZ |
4104 | |
4105 | if (! last_symtab_ended) | |
4106 | { | |
43f3e411 | 4107 | cust = end_symtab (pst->texthigh, SECT_OFF_TEXT (objfile)); |
16db6055 EZ |
4108 | end_stabs (); |
4109 | } | |
c906108c | 4110 | |
c906108c | 4111 | /* There used to be a call to sort_blocks here, but this should not |
c5aa993b JM |
4112 | be necessary for stabs symtabs. And as sort_blocks modifies the |
4113 | start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK, | |
4114 | it did the wrong thing if the first procedure in a file was | |
4115 | generated via asm statements. */ | |
c906108c SS |
4116 | |
4117 | /* Fill in procedure info next. */ | |
4118 | if (fh->cpd > 0) | |
4119 | { | |
c906108c SS |
4120 | char *pdr_ptr; |
4121 | char *pdr_end; | |
4122 | PDR *pdr_in; | |
4123 | PDR *pdr_in_end; | |
4124 | ||
633cf254 | 4125 | gdb::def_vector<PDR> pr_block (fh->cpd); |
c906108c SS |
4126 | |
4127 | pdr_ptr = ((char *) debug_info->external_pdr | |
4128 | + fh->ipdFirst * external_pdr_size); | |
4129 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
633cf254 | 4130 | pdr_in = pr_block.data (); |
c906108c SS |
4131 | for (; |
4132 | pdr_ptr < pdr_end; | |
4133 | pdr_ptr += external_pdr_size, pdr_in++) | |
4134 | { | |
4135 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4136 | ||
4137 | /* Determine lowest PDR address, the PDRs are not always | |
c5aa993b | 4138 | sorted. */ |
633cf254 | 4139 | if (pdr_in == pr_block.data ()) |
c906108c SS |
4140 | lowest_pdr_addr = pdr_in->adr; |
4141 | else if (pdr_in->adr < lowest_pdr_addr) | |
4142 | lowest_pdr_addr = pdr_in->adr; | |
4143 | } | |
4144 | ||
633cf254 | 4145 | pdr_in = pr_block.data (); |
c906108c SS |
4146 | pdr_in_end = pdr_in + fh->cpd; |
4147 | for (; pdr_in < pdr_in_end; pdr_in++) | |
43f3e411 | 4148 | parse_procedure (pdr_in, cust, pst); |
c906108c SS |
4149 | } |
4150 | } | |
4151 | else | |
4152 | { | |
4153 | /* This symbol table contains ordinary ecoff entries. */ | |
4154 | ||
30cc903e | 4155 | int maxlines, size; |
c906108c SS |
4156 | EXTR *ext_ptr; |
4157 | ||
c906108c SS |
4158 | if (fh == 0) |
4159 | { | |
4160 | maxlines = 0; | |
43f3e411 | 4161 | cust = new_symtab ("unknown", 0, objfile); |
c906108c SS |
4162 | } |
4163 | else | |
4164 | { | |
c906108c | 4165 | maxlines = 2 * fh->cline; |
43f3e411 | 4166 | cust = new_symtab (pst->filename, maxlines, objfile); |
c906108c SS |
4167 | |
4168 | /* The proper language was already determined when building | |
4169 | the psymtab, use it. */ | |
43f3e411 | 4170 | COMPUNIT_FILETABS (cust)->language = PST_PRIVATE (pst)->pst_language; |
c906108c SS |
4171 | } |
4172 | ||
43f3e411 | 4173 | psymtab_language = COMPUNIT_FILETABS (cust)->language; |
c906108c | 4174 | |
43f3e411 | 4175 | lines = SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust)); |
c906108c | 4176 | |
025bb325 | 4177 | /* Get a new lexical context. */ |
c906108c SS |
4178 | |
4179 | push_parse_stack (); | |
43f3e411 DE |
4180 | top_stack->cur_st = COMPUNIT_FILETABS (cust); |
4181 | top_stack->cur_block | |
4182 | = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), STATIC_BLOCK); | |
5afc051b | 4183 | BLOCK_START (top_stack->cur_block) = pst->textlow; |
c906108c SS |
4184 | BLOCK_END (top_stack->cur_block) = 0; |
4185 | top_stack->blocktype = stFile; | |
c906108c SS |
4186 | top_stack->cur_type = 0; |
4187 | top_stack->procadr = 0; | |
4188 | top_stack->numargs = 0; | |
4189 | found_ecoff_debugging_info = 0; | |
4190 | ||
4191 | if (fh) | |
4192 | { | |
4193 | char *sym_ptr; | |
4194 | char *sym_end; | |
4195 | ||
025bb325 | 4196 | /* Parse local symbols first. */ |
c906108c SS |
4197 | sym_ptr = ((char *) debug_info->external_sym |
4198 | + fh->isymBase * external_sym_size); | |
4199 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
4200 | while (sym_ptr < sym_end) | |
4201 | { | |
4202 | SYMR sh; | |
4203 | int c; | |
4204 | ||
4205 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); | |
4206 | c = parse_symbol (&sh, | |
4207 | debug_info->external_aux + fh->iauxBase, | |
3e43a32a | 4208 | sym_ptr, fh->fBigendian, |
18a94d75 | 4209 | section_offsets, objfile); |
c906108c SS |
4210 | sym_ptr += c * external_sym_size; |
4211 | } | |
4212 | ||
4213 | /* Linenumbers. At the end, check if we can save memory. | |
4214 | parse_lines has to look ahead an arbitrary number of PDR | |
4215 | structures, so we swap them all first. */ | |
4216 | if (fh->cpd > 0) | |
4217 | { | |
c906108c SS |
4218 | char *pdr_ptr; |
4219 | char *pdr_end; | |
4220 | PDR *pdr_in; | |
4221 | PDR *pdr_in_end; | |
4222 | ||
633cf254 | 4223 | gdb::def_vector<PDR> pr_block (fh->cpd); |
c906108c SS |
4224 | |
4225 | pdr_ptr = ((char *) debug_info->external_pdr | |
4226 | + fh->ipdFirst * external_pdr_size); | |
4227 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
633cf254 | 4228 | pdr_in = pr_block.data (); |
c906108c SS |
4229 | for (; |
4230 | pdr_ptr < pdr_end; | |
4231 | pdr_ptr += external_pdr_size, pdr_in++) | |
4232 | { | |
4233 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4234 | ||
4235 | /* Determine lowest PDR address, the PDRs are not always | |
4236 | sorted. */ | |
633cf254 | 4237 | if (pdr_in == pr_block.data ()) |
c906108c SS |
4238 | lowest_pdr_addr = pdr_in->adr; |
4239 | else if (pdr_in->adr < lowest_pdr_addr) | |
4240 | lowest_pdr_addr = pdr_in->adr; | |
4241 | } | |
4242 | ||
633cf254 | 4243 | parse_lines (fh, pr_block.data (), lines, maxlines, |
3e43a32a | 4244 | pst, lowest_pdr_addr); |
c906108c SS |
4245 | if (lines->nitems < fh->cline) |
4246 | lines = shrink_linetable (lines); | |
4247 | ||
4248 | /* Fill in procedure info next. */ | |
633cf254 | 4249 | pdr_in = pr_block.data (); |
c906108c SS |
4250 | pdr_in_end = pdr_in + fh->cpd; |
4251 | for (; pdr_in < pdr_in_end; pdr_in++) | |
43f3e411 | 4252 | parse_procedure (pdr_in, NULL, pst); |
c906108c SS |
4253 | } |
4254 | } | |
4255 | ||
30cc903e TT |
4256 | size = lines->nitems; |
4257 | if (size > 1) | |
4258 | --size; | |
43f3e411 | 4259 | SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust)) |
224c3ddb SM |
4260 | = ((struct linetable *) |
4261 | obstack_copy (&mdebugread_objfile->objfile_obstack, | |
4262 | lines, (sizeof (struct linetable) | |
4263 | + size * sizeof (lines->item)))); | |
30cc903e | 4264 | xfree (lines); |
c906108c SS |
4265 | |
4266 | /* .. and our share of externals. | |
025bb325 MS |
4267 | XXX use the global list to speed up things here. How? |
4268 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
43f3e411 | 4269 | top_stack->cur_st = COMPUNIT_FILETABS (cust); |
3e43a32a | 4270 | top_stack->cur_block |
439247b6 | 4271 | = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack->cur_st), |
3e43a32a | 4272 | GLOBAL_BLOCK); |
c906108c | 4273 | top_stack->blocktype = stFile; |
c906108c SS |
4274 | |
4275 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
4276 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
3e43a32a | 4277 | parse_external (ext_ptr, fh->fBigendian, |
18a94d75 | 4278 | section_offsets, objfile); |
c906108c SS |
4279 | |
4280 | /* If there are undefined symbols, tell the user. | |
c5aa993b JM |
4281 | The alpha has an undefined symbol for every symbol that is |
4282 | from a shared library, so tell the user only if verbose is on. */ | |
c906108c SS |
4283 | if (info_verbose && n_undef_symbols) |
4284 | { | |
a3f17187 | 4285 | printf_filtered (_("File %s contains %d unresolved references:"), |
43f3e411 DE |
4286 | symtab_to_filename_for_display |
4287 | (COMPUNIT_FILETABS (cust)), | |
05cba821 | 4288 | n_undef_symbols); |
3e43a32a MS |
4289 | printf_filtered ("\n\t%4d variables\n\t%4d " |
4290 | "procedures\n\t%4d labels\n", | |
c906108c SS |
4291 | n_undef_vars, n_undef_procs, n_undef_labels); |
4292 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
4293 | ||
4294 | } | |
4295 | pop_parse_stack (); | |
4296 | ||
43f3e411 | 4297 | sort_blocks (COMPUNIT_FILETABS (cust)); |
c906108c SS |
4298 | } |
4299 | ||
4300 | /* Now link the psymtab and the symtab. */ | |
43f3e411 | 4301 | pst->compunit_symtab = cust; |
c906108c | 4302 | |
dd707e8e | 4303 | mdebugread_objfile = NULL; |
c906108c SS |
4304 | } |
4305 | \f | |
025bb325 | 4306 | /* Ancillary parsing procedures. */ |
c906108c SS |
4307 | |
4308 | /* Return 1 if the symbol pointed to by SH has a cross reference | |
4309 | to an opaque aggregate type, else 0. */ | |
4310 | ||
4311 | static int | |
fba45db2 | 4312 | has_opaque_xref (FDR *fh, SYMR *sh) |
c906108c SS |
4313 | { |
4314 | TIR tir; | |
4315 | union aux_ext *ax; | |
4316 | RNDXR rn[1]; | |
4317 | unsigned int rf; | |
4318 | ||
4319 | if (sh->index == indexNil) | |
4320 | return 0; | |
4321 | ||
4322 | ax = debug_info->external_aux + fh->iauxBase + sh->index; | |
4323 | (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir); | |
4324 | if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum) | |
4325 | return 0; | |
4326 | ||
4327 | ax++; | |
4328 | (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn); | |
4329 | if (rn->rfd == 0xfff) | |
4330 | rf = AUX_GET_ISYM (fh->fBigendian, ax + 1); | |
4331 | else | |
4332 | rf = rn->rfd; | |
4333 | if (rf != -1) | |
4334 | return 0; | |
4335 | return 1; | |
4336 | } | |
4337 | ||
4338 | /* Lookup the type at relative index RN. Return it in TPP | |
4339 | if found and in any event come up with its name PNAME. | |
4340 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). | |
025bb325 | 4341 | Return value says how many aux symbols we ate. */ |
c906108c SS |
4342 | |
4343 | static int | |
3e43a32a MS |
4344 | cross_ref (int fd, union aux_ext *ax, struct type **tpp, |
4345 | enum type_code type_code, | |
025bb325 | 4346 | /* Use to alloc new type if none is found. */ |
a121b7c1 | 4347 | const char **pname, int bigend, const char *sym_name) |
c906108c SS |
4348 | { |
4349 | RNDXR rn[1]; | |
4350 | unsigned int rf; | |
4351 | int result = 1; | |
4352 | FDR *fh; | |
4353 | char *esh; | |
4354 | SYMR sh; | |
4355 | int xref_fd; | |
4356 | struct mdebug_pending *pend; | |
4357 | ||
be903358 | 4358 | *tpp = NULL; |
c906108c SS |
4359 | |
4360 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn); | |
4361 | ||
025bb325 | 4362 | /* Escape index means 'the next one'. */ |
c906108c SS |
4363 | if (rn->rfd == 0xfff) |
4364 | { | |
4365 | result++; | |
4366 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
4367 | } | |
4368 | else | |
4369 | { | |
4370 | rf = rn->rfd; | |
4371 | } | |
4372 | ||
4373 | /* mips cc uses a rf of -1 for opaque struct definitions. | |
19f392bc | 4374 | Set TYPE_STUB for these types so that check_typedef will |
c906108c SS |
4375 | resolve them if the struct gets defined in another compilation unit. */ |
4376 | if (rf == -1) | |
4377 | { | |
4378 | *pname = "<undefined>"; | |
19f392bc UW |
4379 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
4380 | TYPE_STUB (*tpp) = 1; | |
c906108c SS |
4381 | return result; |
4382 | } | |
4383 | ||
4384 | /* mips cc uses an escaped rn->index of 0 for struct return types | |
025bb325 | 4385 | of procedures that were compiled without -g. These will always remain |
c906108c SS |
4386 | undefined. */ |
4387 | if (rn->rfd == 0xfff && rn->index == 0) | |
4388 | { | |
4389 | *pname = "<undefined>"; | |
4390 | return result; | |
4391 | } | |
4392 | ||
4393 | /* Find the relative file descriptor and the symbol in it. */ | |
4394 | fh = get_rfd (fd, rf); | |
4395 | xref_fd = fh - debug_info->fdr; | |
4396 | ||
4397 | if (rn->index >= fh->csym) | |
4398 | { | |
4399 | /* File indirect entry is corrupt. */ | |
4400 | *pname = "<illegal>"; | |
23136709 | 4401 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4402 | return result; |
4403 | } | |
4404 | ||
4405 | /* If we have processed this symbol then we left a forwarding | |
4406 | pointer to the type in the pending list. If not, we`ll put | |
4407 | it in a list of pending types, to be processed later when | |
4408 | the file will be. In any event, we collect the name for the | |
4409 | type here. */ | |
4410 | ||
4411 | esh = ((char *) debug_info->external_sym | |
4412 | + ((fh->isymBase + rn->index) | |
4413 | * debug_swap->external_sym_size)); | |
4414 | (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh); | |
4415 | ||
4416 | /* Make sure that this type of cross reference can be handled. */ | |
4417 | if ((sh.sc != scInfo | |
4418 | || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect | |
4419 | && sh.st != stStruct && sh.st != stUnion | |
4420 | && sh.st != stEnum)) | |
c5aa993b | 4421 | && (sh.st != stBlock || !SC_IS_COMMON (sh.sc))) |
c906108c SS |
4422 | { |
4423 | /* File indirect entry is corrupt. */ | |
4424 | *pname = "<illegal>"; | |
23136709 | 4425 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4426 | return result; |
4427 | } | |
4428 | ||
4429 | *pname = debug_info->ss + fh->issBase + sh.iss; | |
4430 | ||
4431 | pend = is_pending_symbol (fh, esh); | |
4432 | if (pend) | |
4433 | *tpp = pend->t; | |
4434 | else | |
4435 | { | |
4436 | /* We have not yet seen this type. */ | |
4437 | ||
4438 | if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect) | |
4439 | { | |
4440 | TIR tir; | |
4441 | ||
4442 | /* alpha cc puts out a stTypedef with a sh.iss of zero for | |
4443 | two cases: | |
4444 | a) forward declarations of structs/unions/enums which are not | |
c5aa993b | 4445 | defined in this compilation unit. |
025bb325 | 4446 | For these the type will be void. This is a bad design decision |
c5aa993b JM |
4447 | as cross referencing across compilation units is impossible |
4448 | due to the missing name. | |
c906108c | 4449 | b) forward declarations of structs/unions/enums/typedefs which |
c5aa993b | 4450 | are defined later in this file or in another file in the same |
025bb325 | 4451 | compilation unit. Irix5 cc uses a stIndirect symbol for this. |
c5aa993b | 4452 | Simply cross reference those again to get the true type. |
c906108c SS |
4453 | The forward references are not entered in the pending list and |
4454 | in the symbol table. */ | |
4455 | ||
4456 | (*debug_swap->swap_tir_in) (bigend, | |
4457 | &(debug_info->external_aux | |
4458 | + fh->iauxBase + sh.index)->a_ti, | |
4459 | &tir); | |
4460 | if (tir.tq0 != tqNil) | |
23136709 | 4461 | complaint (&symfile_complaints, |
e2e0b3e5 | 4462 | _("illegal tq0 in forward typedef for %s"), sym_name); |
c906108c SS |
4463 | switch (tir.bt) |
4464 | { | |
4465 | case btVoid: | |
19f392bc | 4466 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c5aa993b | 4467 | *pname = "<undefined>"; |
c906108c SS |
4468 | break; |
4469 | ||
4470 | case btStruct: | |
4471 | case btUnion: | |
4472 | case btEnum: | |
4473 | cross_ref (xref_fd, | |
4474 | (debug_info->external_aux | |
4475 | + fh->iauxBase + sh.index + 1), | |
4476 | tpp, type_code, pname, | |
4477 | fh->fBigendian, sym_name); | |
4478 | break; | |
4479 | ||
4480 | case btTypedef: | |
025bb325 | 4481 | /* Follow a forward typedef. This might recursively |
c5aa993b JM |
4482 | call cross_ref till we get a non typedef'ed type. |
4483 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4484 | cannot handle typedefs without type copying. Type |
c5aa993b JM |
4485 | copying is impossible as we might have mutual forward |
4486 | references between two files and the copied type would not | |
4487 | get filled in when we later parse its definition. */ | |
c906108c SS |
4488 | *tpp = parse_type (xref_fd, |
4489 | debug_info->external_aux + fh->iauxBase, | |
4490 | sh.index, | |
c5aa993b | 4491 | (int *) NULL, |
c906108c SS |
4492 | fh->fBigendian, |
4493 | debug_info->ss + fh->issBase + sh.iss); | |
4494 | add_pending (fh, esh, *tpp); | |
4495 | break; | |
4496 | ||
4497 | default: | |
23136709 | 4498 | complaint (&symfile_complaints, |
e2e0b3e5 | 4499 | _("illegal bt %d in forward typedef for %s"), tir.bt, |
23136709 | 4500 | sym_name); |
19f392bc | 4501 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
4502 | break; |
4503 | } | |
4504 | return result; | |
4505 | } | |
4506 | else if (sh.st == stTypedef) | |
4507 | { | |
025bb325 | 4508 | /* Parse the type for a normal typedef. This might recursively call |
c906108c SS |
4509 | cross_ref till we get a non typedef'ed type. |
4510 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4511 | cannot handle typedefs without type copying. But type copying is |
c906108c SS |
4512 | impossible as we might have mutual forward references between |
4513 | two files and the copied type would not get filled in when | |
4514 | we later parse its definition. */ | |
4515 | *tpp = parse_type (xref_fd, | |
4516 | debug_info->external_aux + fh->iauxBase, | |
4517 | sh.index, | |
c5aa993b | 4518 | (int *) NULL, |
c906108c SS |
4519 | fh->fBigendian, |
4520 | debug_info->ss + fh->issBase + sh.iss); | |
4521 | } | |
4522 | else | |
4523 | { | |
4524 | /* Cross reference to a struct/union/enum which is defined | |
4525 | in another file in the same compilation unit but that file | |
4526 | has not been parsed yet. | |
4527 | Initialize the type only, it will be filled in when | |
4528 | it's definition is parsed. */ | |
19f392bc | 4529 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
4530 | } |
4531 | add_pending (fh, esh, *tpp); | |
4532 | } | |
4533 | ||
025bb325 | 4534 | /* We used one auxent normally, two if we got a "next one" rf. */ |
c906108c SS |
4535 | return result; |
4536 | } | |
4537 | ||
4538 | ||
4539 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
025bb325 | 4540 | keeping the symtab sorted. */ |
c906108c SS |
4541 | |
4542 | static struct symbol * | |
a121b7c1 | 4543 | mylookup_symbol (const char *name, const struct block *block, |
fe978cb0 | 4544 | domain_enum domain, enum address_class theclass) |
c906108c | 4545 | { |
8157b174 | 4546 | struct block_iterator iter; |
de4f826b | 4547 | int inc; |
e88c90f2 | 4548 | struct symbol *sym; |
c906108c | 4549 | |
c906108c | 4550 | inc = name[0]; |
de4f826b | 4551 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 4552 | { |
3567439c | 4553 | if (SYMBOL_LINKAGE_NAME (sym)[0] == inc |
176620f1 | 4554 | && SYMBOL_DOMAIN (sym) == domain |
fe978cb0 | 4555 | && SYMBOL_CLASS (sym) == theclass |
3567439c | 4556 | && strcmp (SYMBOL_LINKAGE_NAME (sym), name) == 0) |
c906108c | 4557 | return sym; |
c906108c | 4558 | } |
e88c90f2 | 4559 | |
c906108c SS |
4560 | block = BLOCK_SUPERBLOCK (block); |
4561 | if (block) | |
fe978cb0 | 4562 | return mylookup_symbol (name, block, domain, theclass); |
c906108c SS |
4563 | return 0; |
4564 | } | |
4565 | ||
4566 | ||
de4f826b | 4567 | /* Add a new symbol S to a block B. */ |
c906108c SS |
4568 | |
4569 | static void | |
c7efd0b9 | 4570 | add_symbol (struct symbol *s, struct symtab *symtab, struct block *b) |
c906108c | 4571 | { |
08be3fe3 | 4572 | symbol_set_symtab (s, symtab); |
de4f826b | 4573 | dict_add_symbol (BLOCK_DICT (b), s); |
c906108c SS |
4574 | } |
4575 | ||
025bb325 | 4576 | /* Add a new block B to a symtab S. */ |
c906108c SS |
4577 | |
4578 | static void | |
fba45db2 | 4579 | add_block (struct block *b, struct symtab *s) |
c906108c | 4580 | { |
346d1dfe TT |
4581 | /* Cast away "const", but that's ok because we're building the |
4582 | symtab and blockvector here. */ | |
439247b6 | 4583 | struct blockvector *bv = (struct blockvector *) SYMTAB_BLOCKVECTOR (s); |
c906108c | 4584 | |
12b9c64f | 4585 | bv = (struct blockvector *) xrealloc ((void *) bv, |
c906108c SS |
4586 | (sizeof (struct blockvector) |
4587 | + BLOCKVECTOR_NBLOCKS (bv) | |
4588 | * sizeof (bv->block))); | |
439247b6 DE |
4589 | if (bv != SYMTAB_BLOCKVECTOR (s)) |
4590 | SYMTAB_BLOCKVECTOR (s) = bv; | |
c906108c SS |
4591 | |
4592 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; | |
4593 | } | |
4594 | ||
4595 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
4596 | MIPS' linenumber encoding might need more than one byte | |
4597 | to describe it, LAST is used to detect these continuation lines. | |
4598 | ||
4599 | Combining lines with the same line number seems like a bad idea. | |
4600 | E.g: There could be a line number entry with the same line number after the | |
4601 | prologue and GDB should not ignore it (this is a better way to find | |
4602 | a prologue than mips_skip_prologue). | |
4603 | But due to the compressed line table format there are line number entries | |
4604 | for the same line which are needed to bridge the gap to the next | |
025bb325 | 4605 | line number entry. These entries have a bogus address info with them |
c906108c SS |
4606 | and we are unable to tell them from intended duplicate line number |
4607 | entries. | |
4608 | This is another reason why -ggdb debugging format is preferable. */ | |
4609 | ||
4610 | static int | |
fba45db2 | 4611 | add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last) |
c906108c SS |
4612 | { |
4613 | /* DEC c89 sometimes produces zero linenos which confuse gdb. | |
025bb325 | 4614 | Change them to something sensible. */ |
c906108c SS |
4615 | if (lineno == 0) |
4616 | lineno = 1; | |
4617 | if (last == 0) | |
025bb325 | 4618 | last = -2; /* Make sure we record first line. */ |
c906108c | 4619 | |
025bb325 | 4620 | if (last == lineno) /* Skip continuation lines. */ |
c906108c SS |
4621 | return lineno; |
4622 | ||
4623 | lt->item[lt->nitems].line = lineno; | |
4624 | lt->item[lt->nitems++].pc = adr << 2; | |
4625 | return lineno; | |
4626 | } | |
4627 | \f | |
025bb325 | 4628 | /* Sorting and reordering procedures. */ |
c906108c | 4629 | |
025bb325 | 4630 | /* Blocks with a smaller low bound should come first. */ |
c906108c SS |
4631 | |
4632 | static int | |
12b9c64f | 4633 | compare_blocks (const void *arg1, const void *arg2) |
c906108c | 4634 | { |
887432a5 | 4635 | LONGEST addr_diff; |
c906108c SS |
4636 | struct block **b1 = (struct block **) arg1; |
4637 | struct block **b2 = (struct block **) arg2; | |
4638 | ||
4639 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
4640 | if (addr_diff == 0) | |
4641 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); | |
4642 | return addr_diff; | |
4643 | } | |
4644 | ||
4645 | /* Sort the blocks of a symtab S. | |
4646 | Reorder the blocks in the blockvector by code-address, | |
025bb325 | 4647 | as required by some MI search routines. */ |
c906108c SS |
4648 | |
4649 | static void | |
fba45db2 | 4650 | sort_blocks (struct symtab *s) |
c906108c | 4651 | { |
346d1dfe TT |
4652 | /* We have to cast away const here, but this is ok because we're |
4653 | constructing the blockvector in this code. */ | |
439247b6 | 4654 | struct blockvector *bv = (struct blockvector *) SYMTAB_BLOCKVECTOR (s); |
c906108c | 4655 | |
49323895 | 4656 | if (BLOCKVECTOR_NBLOCKS (bv) <= FIRST_LOCAL_BLOCK) |
c906108c SS |
4657 | { |
4658 | /* Cosmetic */ | |
4659 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
4660 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
4661 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
4662 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
4663 | return; | |
4664 | } | |
4665 | /* | |
4666 | * This is very unfortunate: normally all functions are compiled in | |
4667 | * the order they are found, but if the file is compiled -O3 things | |
4668 | * are very different. It would be nice to find a reliable test | |
4669 | * to detect -O3 images in advance. | |
4670 | */ | |
49323895 | 4671 | if (BLOCKVECTOR_NBLOCKS (bv) > FIRST_LOCAL_BLOCK + 1) |
c906108c SS |
4672 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), |
4673 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
4674 | sizeof (struct block *), | |
4675 | compare_blocks); | |
4676 | ||
4677 | { | |
aa1ee363 AC |
4678 | CORE_ADDR high = 0; |
4679 | int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
c906108c SS |
4680 | |
4681 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
4682 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
4683 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
4684 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
4685 | } | |
4686 | ||
4687 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
4688 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
4689 | ||
4690 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4691 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4692 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4693 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4694 | } | |
4695 | \f | |
4696 | ||
025bb325 | 4697 | /* Constructor/restructor/destructor procedures. */ |
c906108c | 4698 | |
de4f826b | 4699 | /* Allocate a new symtab for NAME. Needs an estimate of how many |
025bb325 | 4700 | linenumbers MAXLINES we'll put in it. */ |
c906108c | 4701 | |
43f3e411 | 4702 | static struct compunit_symtab * |
72b9f47f | 4703 | new_symtab (const char *name, int maxlines, struct objfile *objfile) |
c906108c | 4704 | { |
43f3e411 DE |
4705 | struct compunit_symtab *cust = allocate_compunit_symtab (objfile, name); |
4706 | struct symtab *symtab; | |
346d1dfe | 4707 | struct blockvector *bv; |
5ffa0793 | 4708 | enum language lang; |
c906108c | 4709 | |
43f3e411 DE |
4710 | add_compunit_symtab_to_objfile (cust); |
4711 | symtab = allocate_symtab (cust, name); | |
4712 | ||
4713 | SYMTAB_LINETABLE (symtab) = new_linetable (maxlines); | |
5ffa0793 | 4714 | lang = compunit_language (cust); |
c906108c | 4715 | |
025bb325 | 4716 | /* All symtabs must have at least two blocks. */ |
346d1dfe | 4717 | bv = new_bvect (2); |
5ffa0793 PA |
4718 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = new_block (NON_FUNCTION_BLOCK, lang); |
4719 | BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = new_block (NON_FUNCTION_BLOCK, lang); | |
346d1dfe TT |
4720 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = |
4721 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
43f3e411 | 4722 | COMPUNIT_BLOCKVECTOR (cust) = bv; |
c906108c | 4723 | |
43f3e411 DE |
4724 | COMPUNIT_DEBUGFORMAT (cust) = "ECOFF"; |
4725 | return cust; | |
c906108c SS |
4726 | } |
4727 | ||
025bb325 | 4728 | /* Allocate a new partial_symtab NAME. */ |
c906108c SS |
4729 | |
4730 | static struct partial_symtab * | |
a121b7c1 | 4731 | new_psymtab (const char *name, struct objfile *objfile) |
c906108c SS |
4732 | { |
4733 | struct partial_symtab *psymtab; | |
4734 | ||
4735 | psymtab = allocate_psymtab (name, objfile); | |
c906108c | 4736 | |
025bb325 | 4737 | /* Keep a backpointer to the file's symbols. */ |
c906108c | 4738 | |
e38df1d0 TT |
4739 | psymtab->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
4740 | sizeof (struct symloc)); | |
12b9c64f | 4741 | memset (psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
4742 | CUR_BFD (psymtab) = cur_bfd; |
4743 | DEBUG_SWAP (psymtab) = debug_swap; | |
4744 | DEBUG_INFO (psymtab) = debug_info; | |
4745 | PENDING_LIST (psymtab) = pending_list; | |
4746 | ||
025bb325 | 4747 | /* The way to turn this into a symtab is to call... */ |
257e7a09 | 4748 | psymtab->read_symtab = mdebug_read_symtab; |
c906108c SS |
4749 | return (psymtab); |
4750 | } | |
4751 | ||
4752 | ||
4753 | /* Allocate a linetable array of the given SIZE. Since the struct | |
4754 | already includes one item, we subtract one when calculating the | |
4755 | proper size to allocate. */ | |
4756 | ||
4757 | static struct linetable * | |
fba45db2 | 4758 | new_linetable (int size) |
c906108c SS |
4759 | { |
4760 | struct linetable *l; | |
4761 | ||
30cc903e TT |
4762 | if (size > 1) |
4763 | --size; | |
4764 | size = size * sizeof (l->item) + sizeof (struct linetable); | |
c906108c SS |
4765 | l = (struct linetable *) xmalloc (size); |
4766 | l->nitems = 0; | |
4767 | return l; | |
4768 | } | |
4769 | ||
025bb325 | 4770 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, |
c906108c SS |
4771 | I am not so sure about the 3.4 ones. |
4772 | ||
4773 | Since the struct linetable already includes one item, we subtract one when | |
4774 | calculating the proper size to allocate. */ | |
4775 | ||
4776 | static struct linetable * | |
fba45db2 | 4777 | shrink_linetable (struct linetable *lt) |
c906108c | 4778 | { |
12b9c64f | 4779 | return (struct linetable *) xrealloc ((void *) lt, |
c906108c SS |
4780 | (sizeof (struct linetable) |
4781 | + ((lt->nitems - 1) | |
4782 | * sizeof (lt->item)))); | |
4783 | } | |
4784 | ||
025bb325 | 4785 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ |
c906108c SS |
4786 | |
4787 | static struct blockvector * | |
fba45db2 | 4788 | new_bvect (int nblocks) |
c906108c SS |
4789 | { |
4790 | struct blockvector *bv; | |
4791 | int size; | |
4792 | ||
4793 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); | |
4794 | bv = (struct blockvector *) xzalloc (size); | |
4795 | ||
4796 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; | |
4797 | ||
4798 | return bv; | |
4799 | } | |
4800 | ||
5ffa0793 PA |
4801 | /* Allocate and zero a new block of language LANGUAGE, and set its |
4802 | BLOCK_DICT. If function is non-zero, assume the block is | |
4803 | associated to a function, and make sure that the symbols are stored | |
4804 | linearly; otherwise, store them hashed. */ | |
c906108c SS |
4805 | |
4806 | static struct block * | |
5ffa0793 | 4807 | new_block (enum block_type type, enum language language) |
c906108c | 4808 | { |
a1632d59 DC |
4809 | /* FIXME: carlton/2003-09-11: This should use allocate_block to |
4810 | allocate the block. Which, in turn, suggests that the block | |
4811 | should be allocated on an obstack. */ | |
8d749320 | 4812 | struct block *retval = XCNEW (struct block); |
c906108c | 4813 | |
de4f826b | 4814 | if (type == FUNCTION_BLOCK) |
5ffa0793 | 4815 | BLOCK_DICT (retval) = dict_create_linear_expandable (language); |
de4f826b | 4816 | else |
5ffa0793 | 4817 | BLOCK_DICT (retval) = dict_create_hashed_expandable (language); |
c906108c | 4818 | |
de4f826b | 4819 | return retval; |
c906108c SS |
4820 | } |
4821 | ||
025bb325 | 4822 | /* Create a new symbol with printname NAME. */ |
c906108c SS |
4823 | |
4824 | static struct symbol * | |
a121b7c1 | 4825 | new_symbol (const char *name) |
c906108c | 4826 | { |
e623cf5d | 4827 | struct symbol *s = allocate_symbol (mdebugread_objfile); |
c906108c | 4828 | |
f85f34ed TT |
4829 | SYMBOL_SET_LANGUAGE (s, psymtab_language, |
4830 | &mdebugread_objfile->objfile_obstack); | |
dd707e8e | 4831 | SYMBOL_SET_NAMES (s, name, strlen (name), 1, mdebugread_objfile); |
c906108c SS |
4832 | return s; |
4833 | } | |
4834 | ||
025bb325 | 4835 | /* Create a new type with printname NAME. */ |
c906108c SS |
4836 | |
4837 | static struct type * | |
fba45db2 | 4838 | new_type (char *name) |
c906108c SS |
4839 | { |
4840 | struct type *t; | |
4841 | ||
dd707e8e | 4842 | t = alloc_type (mdebugread_objfile); |
c906108c | 4843 | TYPE_NAME (t) = name; |
b4ba55a1 | 4844 | INIT_CPLUS_SPECIFIC (t); |
c906108c SS |
4845 | return t; |
4846 | } | |
4847 | \f | |
4848 | /* Read ECOFF debugging information from a BFD section. This is | |
4849 | called from elfread.c. It parses the section into a | |
4850 | ecoff_debug_info struct, and then lets the rest of the file handle | |
4851 | it as normal. */ | |
4852 | ||
4853 | void | |
fba45db2 KB |
4854 | elfmdebug_build_psymtabs (struct objfile *objfile, |
4855 | const struct ecoff_debug_swap *swap, asection *sec) | |
c906108c SS |
4856 | { |
4857 | bfd *abfd = objfile->obfd; | |
4858 | struct ecoff_debug_info *info; | |
7134143f DJ |
4859 | |
4860 | /* FIXME: It's not clear whether we should be getting minimal symbol | |
4861 | information from .mdebug in an ELF file, or whether we will. | |
4862 | Re-initialize the minimal symbol reader in case we do. */ | |
4863 | ||
d25e8719 | 4864 | minimal_symbol_reader reader (objfile); |
c906108c SS |
4865 | |
4866 | info = ((struct ecoff_debug_info *) | |
8b92e4d5 | 4867 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
4868 | sizeof (struct ecoff_debug_info))); |
4869 | ||
4870 | if (!(*swap->read_debug_info) (abfd, sec, info)) | |
8a3fe4f8 | 4871 | error (_("Error reading ECOFF debugging information: %s"), |
c906108c SS |
4872 | bfd_errmsg (bfd_get_error ())); |
4873 | ||
8dddcb8f | 4874 | mdebug_build_psymtabs (reader, objfile, swap, info); |
7134143f | 4875 | |
d25e8719 | 4876 | reader.install (); |
c906108c | 4877 | } |
c906108c SS |
4878 | |
4879 | void | |
fba45db2 | 4880 | _initialize_mdebugread (void) |
c906108c | 4881 | { |
0a9d309a | 4882 | basic_type_data = register_objfile_data (); |
f1e6e072 TT |
4883 | |
4884 | mdebug_register_index | |
4885 | = register_symbol_register_impl (LOC_REGISTER, &mdebug_register_funcs); | |
4886 | mdebug_regparm_index | |
4887 | = register_symbol_register_impl (LOC_REGPARM_ADDR, &mdebug_register_funcs); | |
c906108c | 4888 | } |