Commit | Line | Data |
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c906108c | 1 | /* Read a symbol table in ECOFF format (Third-Eye). |
ee300cd4 | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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 | |
a14ed312 | 71 | extern void _initialize_mdebugread (void); |
c906108c | 72 | |
025bb325 | 73 | /* Provide a way to test if we have both ECOFF and ELF symbol tables. |
c906108c SS |
74 | We use this define in order to know whether we should override a |
75 | symbol's ECOFF section with its ELF section. This is necessary in | |
76 | case the symbol's ELF section could not be represented in ECOFF. */ | |
77 | #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
78 | && bfd_get_section_by_name (bfd, ".mdebug") != NULL) | |
91a81f69 TT |
79 | |
80 | /* The objfile we are currently reading. */ | |
81 | ||
dd707e8e | 82 | static struct objfile *mdebugread_objfile; |
91a81f69 | 83 | |
c906108c | 84 | \f |
c5aa993b | 85 | |
c906108c SS |
86 | /* We put a pointer to this structure in the read_symtab_private field |
87 | of the psymtab. */ | |
88 | ||
89 | struct symloc | |
c5aa993b JM |
90 | { |
91 | /* Index of the FDR that this psymtab represents. */ | |
92 | int fdr_idx; | |
93 | /* The BFD that the psymtab was created from. */ | |
94 | bfd *cur_bfd; | |
95 | const struct ecoff_debug_swap *debug_swap; | |
96 | struct ecoff_debug_info *debug_info; | |
97 | struct mdebug_pending **pending_list; | |
98 | /* Pointer to external symbols for this file. */ | |
99 | EXTR *extern_tab; | |
100 | /* Size of extern_tab. */ | |
101 | int extern_count; | |
102 | enum language pst_language; | |
103 | }; | |
c906108c SS |
104 | |
105 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) | |
106 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
107 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) | |
108 | #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap) | |
109 | #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info) | |
110 | #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list) | |
111 | ||
112 | #define SC_IS_TEXT(sc) ((sc) == scText \ | |
113 | || (sc) == scRConst \ | |
114 | || (sc) == scInit \ | |
115 | || (sc) == scFini) | |
116 | #define SC_IS_DATA(sc) ((sc) == scData \ | |
117 | || (sc) == scSData \ | |
118 | || (sc) == scRData \ | |
119 | || (sc) == scPData \ | |
120 | || (sc) == scXData) | |
121 | #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon) | |
0e931cf0 JB |
122 | #define SC_IS_BSS(sc) ((sc) == scBss) |
123 | #define SC_IS_SBSS(sc) ((sc) == scSBss) | |
c906108c | 124 | #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined) |
c906108c | 125 | \f |
025bb325 | 126 | /* Various complaints about symbol reading that don't abort the process. */ |
23136709 KB |
127 | static void |
128 | index_complaint (const char *arg1) | |
129 | { | |
e2e0b3e5 | 130 | complaint (&symfile_complaints, _("bad aux index at symbol %s"), arg1); |
23136709 | 131 | } |
c906108c | 132 | |
23136709 KB |
133 | static void |
134 | unknown_ext_complaint (const char *arg1) | |
135 | { | |
e2e0b3e5 | 136 | complaint (&symfile_complaints, _("unknown external symbol %s"), arg1); |
23136709 | 137 | } |
c906108c | 138 | |
23136709 KB |
139 | static void |
140 | basic_type_complaint (int arg1, const char *arg2) | |
141 | { | |
e2e0b3e5 | 142 | complaint (&symfile_complaints, _("cannot map ECOFF basic type 0x%x for %s"), |
23136709 KB |
143 | arg1, arg2); |
144 | } | |
c906108c | 145 | |
23136709 KB |
146 | static void |
147 | bad_tag_guess_complaint (const char *arg1) | |
148 | { | |
3e43a32a MS |
149 | complaint (&symfile_complaints, |
150 | _("guessed tag type of %s incorrectly"), arg1); | |
23136709 | 151 | } |
c906108c | 152 | |
23136709 KB |
153 | static void |
154 | bad_rfd_entry_complaint (const char *arg1, int arg2, int arg3) | |
155 | { | |
e2e0b3e5 | 156 | complaint (&symfile_complaints, _("bad rfd entry for %s: file %d, index %d"), |
23136709 KB |
157 | arg1, arg2, arg3); |
158 | } | |
c906108c | 159 | |
23136709 KB |
160 | static void |
161 | unexpected_type_code_complaint (const char *arg1) | |
162 | { | |
e2e0b3e5 | 163 | complaint (&symfile_complaints, _("unexpected type code for %s"), arg1); |
23136709 | 164 | } |
c906108c | 165 | |
025bb325 | 166 | /* Macros and extra defs. */ |
c906108c | 167 | |
025bb325 | 168 | /* Puns: hard to find whether -g was used and how. */ |
c906108c SS |
169 | |
170 | #define MIN_GLEVEL GLEVEL_0 | |
171 | #define compare_glevel(a,b) \ | |
172 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
173 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
174 | \f | |
025bb325 | 175 | /* Things that really are local to this module. */ |
c906108c | 176 | |
025bb325 | 177 | /* Remember what we deduced to be the source language of this psymtab. */ |
c906108c SS |
178 | |
179 | static enum language psymtab_language = language_unknown; | |
180 | ||
181 | /* Current BFD. */ | |
182 | ||
183 | static bfd *cur_bfd; | |
184 | ||
185 | /* How to parse debugging information for CUR_BFD. */ | |
186 | ||
187 | static const struct ecoff_debug_swap *debug_swap; | |
188 | ||
189 | /* Pointers to debugging information for CUR_BFD. */ | |
190 | ||
191 | static struct ecoff_debug_info *debug_info; | |
192 | ||
025bb325 | 193 | /* Pointer to current file decriptor record, and its index. */ |
c906108c SS |
194 | |
195 | static FDR *cur_fdr; | |
196 | static int cur_fd; | |
197 | ||
025bb325 | 198 | /* Index of current symbol. */ |
c906108c SS |
199 | |
200 | static int cur_sdx; | |
201 | ||
202 | /* Note how much "debuggable" this image is. We would like | |
025bb325 | 203 | to see at least one FDR with full symbols. */ |
c906108c SS |
204 | |
205 | static int max_gdbinfo; | |
206 | static int max_glevel; | |
207 | ||
025bb325 | 208 | /* When examining .o files, report on undefined symbols. */ |
c906108c SS |
209 | |
210 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
211 | ||
212 | /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
213 | ||
214 | static char stabs_symbol[] = STABS_SYMBOL; | |
215 | ||
c906108c SS |
216 | /* Nonzero if we have seen ecoff debugging info for a file. */ |
217 | ||
218 | static int found_ecoff_debugging_info; | |
219 | ||
025bb325 | 220 | /* Forward declarations. */ |
c906108c | 221 | |
12b9c64f | 222 | static int upgrade_type (int, struct type **, int, union aux_ext *, |
a121b7c1 | 223 | int, const char *); |
c906108c | 224 | |
8dddcb8f TT |
225 | static void parse_partial_symbols (minimal_symbol_reader &, |
226 | struct objfile *); | |
c906108c | 227 | |
a14ed312 | 228 | static int has_opaque_xref (FDR *, SYMR *); |
c906108c | 229 | |
12b9c64f | 230 | static int cross_ref (int, union aux_ext *, struct type **, enum type_code, |
a121b7c1 | 231 | const char **, int, const char *); |
c906108c | 232 | |
a121b7c1 | 233 | static struct symbol *new_symbol (const char *); |
c906108c | 234 | |
a14ed312 | 235 | static struct type *new_type (char *); |
c906108c | 236 | |
de4f826b | 237 | enum block_type { FUNCTION_BLOCK, NON_FUNCTION_BLOCK }; |
c906108c | 238 | |
de4f826b DC |
239 | static struct block *new_block (enum block_type); |
240 | ||
43f3e411 | 241 | static struct compunit_symtab *new_symtab (const char *, int, struct objfile *); |
c906108c | 242 | |
a14ed312 | 243 | static struct linetable *new_linetable (int); |
c906108c | 244 | |
a14ed312 | 245 | static struct blockvector *new_bvect (int); |
c906108c | 246 | |
a14ed312 | 247 | static struct type *parse_type (int, union aux_ext *, unsigned int, int *, |
a121b7c1 | 248 | int, const char *); |
c906108c | 249 | |
a121b7c1 | 250 | static struct symbol *mylookup_symbol (const char *, const struct block *, |
3977b71f | 251 | domain_enum, enum address_class); |
c906108c | 252 | |
a14ed312 | 253 | static void sort_blocks (struct symtab *); |
c906108c | 254 | |
a121b7c1 | 255 | static struct partial_symtab *new_psymtab (const char *, struct objfile *); |
c906108c | 256 | |
5c80ed9d TT |
257 | static void psymtab_to_symtab_1 (struct objfile *objfile, |
258 | struct partial_symtab *, const char *); | |
c906108c | 259 | |
a14ed312 | 260 | static void add_block (struct block *, struct symtab *); |
c906108c | 261 | |
c7efd0b9 | 262 | static void add_symbol (struct symbol *, struct symtab *, struct block *); |
c906108c | 263 | |
a14ed312 | 264 | static int add_line (struct linetable *, int, CORE_ADDR, int); |
c906108c | 265 | |
a14ed312 | 266 | static struct linetable *shrink_linetable (struct linetable *); |
c906108c | 267 | |
12b9c64f AO |
268 | static void handle_psymbol_enumerators (struct objfile *, FDR *, int, |
269 | CORE_ADDR); | |
c906108c | 270 | |
a121b7c1 | 271 | static const char *mdebug_next_symbol_text (struct objfile *); |
c906108c | 272 | \f |
257e7a09 YQ |
273 | /* Exported procedure: Builds a symtab from the partial symtab SELF. |
274 | Restores the environment in effect when SELF was created, delegates | |
c906108c | 275 | most of the work to an ancillary procedure, and sorts |
257e7a09 | 276 | and reorders the symtab list at the end. SELF is not NULL. */ |
c906108c SS |
277 | |
278 | static void | |
257e7a09 | 279 | mdebug_read_symtab (struct partial_symtab *self, struct objfile *objfile) |
c906108c | 280 | { |
c906108c SS |
281 | if (info_verbose) |
282 | { | |
257e7a09 | 283 | printf_filtered (_("Reading in symbols for %s..."), self->filename); |
c906108c SS |
284 | gdb_flush (gdb_stdout); |
285 | } | |
286 | ||
287 | next_symbol_text_func = mdebug_next_symbol_text; | |
288 | ||
257e7a09 | 289 | psymtab_to_symtab_1 (objfile, self, self->filename); |
c906108c SS |
290 | |
291 | /* Match with global symbols. This only needs to be done once, | |
025bb325 | 292 | after all of the symtabs and dependencies have been read in. */ |
5c80ed9d | 293 | scan_file_globals (objfile); |
c906108c SS |
294 | |
295 | if (info_verbose) | |
a3f17187 | 296 | printf_filtered (_("done.\n")); |
c906108c SS |
297 | } |
298 | \f | |
025bb325 | 299 | /* File-level interface functions. */ |
c906108c | 300 | |
025bb325 | 301 | /* Find a file descriptor given its index RF relative to a file CF. */ |
c906108c SS |
302 | |
303 | static FDR * | |
fba45db2 | 304 | get_rfd (int cf, int rf) |
c906108c SS |
305 | { |
306 | FDR *fdrs; | |
52f0bd74 | 307 | FDR *f; |
c906108c SS |
308 | RFDT rfd; |
309 | ||
310 | fdrs = debug_info->fdr; | |
311 | f = fdrs + cf; | |
025bb325 | 312 | /* Object files do not have the RFD table, all refs are absolute. */ |
c906108c SS |
313 | if (f->rfdBase == 0) |
314 | return fdrs + rf; | |
315 | (*debug_swap->swap_rfd_in) (cur_bfd, | |
c5aa993b JM |
316 | ((char *) debug_info->external_rfd |
317 | + ((f->rfdBase + rf) | |
318 | * debug_swap->external_rfd_size)), | |
319 | &rfd); | |
c906108c SS |
320 | return fdrs + rfd; |
321 | } | |
322 | ||
025bb325 | 323 | /* Return a safer print NAME for a file descriptor. */ |
c906108c | 324 | |
a121b7c1 | 325 | static const char * |
fba45db2 | 326 | fdr_name (FDR *f) |
c906108c SS |
327 | { |
328 | if (f->rss == -1) | |
329 | return "<stripped file>"; | |
330 | if (f->rss == 0) | |
331 | return "<NFY>"; | |
332 | return debug_info->ss + f->issBase + f->rss; | |
333 | } | |
334 | ||
335 | ||
336 | /* Read in and parse the symtab of the file OBJFILE. Symbols from | |
337 | different sections are relocated via the SECTION_OFFSETS. */ | |
338 | ||
339 | void | |
8dddcb8f TT |
340 | mdebug_build_psymtabs (minimal_symbol_reader &reader, |
341 | struct objfile *objfile, | |
fba45db2 KB |
342 | const struct ecoff_debug_swap *swap, |
343 | struct ecoff_debug_info *info) | |
c906108c SS |
344 | { |
345 | cur_bfd = objfile->obfd; | |
346 | debug_swap = swap; | |
347 | debug_info = info; | |
348 | ||
d3d55eeb EZ |
349 | stabsread_new_init (); |
350 | buildsym_new_init (); | |
351 | free_header_files (); | |
352 | init_header_files (); | |
353 | ||
c906108c SS |
354 | /* Make sure all the FDR information is swapped in. */ |
355 | if (info->fdr == (FDR *) NULL) | |
356 | { | |
357 | char *fdr_src; | |
358 | char *fdr_end; | |
359 | FDR *fdr_ptr; | |
360 | ||
8b92e4d5 | 361 | info->fdr = (FDR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
362 | (info->symbolic_header.ifdMax |
363 | * sizeof (FDR))); | |
19ba03f4 | 364 | fdr_src = (char *) info->external_fdr; |
c906108c SS |
365 | fdr_end = (fdr_src |
366 | + info->symbolic_header.ifdMax * swap->external_fdr_size); | |
367 | fdr_ptr = info->fdr; | |
368 | for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++) | |
369 | (*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr); | |
370 | } | |
371 | ||
8dddcb8f | 372 | parse_partial_symbols (reader, objfile); |
c906108c SS |
373 | |
374 | #if 0 | |
375 | /* Check to make sure file was compiled with -g. If not, warn the | |
376 | user of this limitation. */ | |
377 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) | |
378 | { | |
379 | if (max_gdbinfo == 0) | |
3e43a32a MS |
380 | printf_unfiltered (_("\n%s not compiled with -g, " |
381 | "debugging support is limited.\n"), | |
c5aa993b | 382 | objfile->name); |
3e43a32a MS |
383 | printf_unfiltered (_("You should compile with -g2 or " |
384 | "-g3 for best debugging support.\n")); | |
c906108c SS |
385 | gdb_flush (gdb_stdout); |
386 | } | |
387 | #endif | |
388 | } | |
389 | \f | |
390 | /* Local utilities */ | |
391 | ||
025bb325 | 392 | /* Map of FDR indexes to partial symtabs. */ |
c906108c SS |
393 | |
394 | struct pst_map | |
395 | { | |
396 | struct partial_symtab *pst; /* the psymtab proper */ | |
397 | long n_globals; /* exported globals (external symbols) */ | |
398 | long globals_offset; /* cumulative */ | |
399 | }; | |
400 | ||
401 | ||
402 | /* Utility stack, used to nest procedures and blocks properly. | |
403 | It is a doubly linked list, to avoid too many alloc/free. | |
404 | Since we might need it quite a few times it is NOT deallocated | |
025bb325 | 405 | after use. */ |
c906108c SS |
406 | |
407 | static struct parse_stack | |
c5aa993b JM |
408 | { |
409 | struct parse_stack *next, *prev; | |
025bb325 MS |
410 | struct symtab *cur_st; /* Current symtab. */ |
411 | struct block *cur_block; /* Block in it. */ | |
c5aa993b JM |
412 | |
413 | /* What are we parsing. stFile, or stBlock are for files and | |
414 | blocks. stProc or stStaticProc means we have seen the start of a | |
415 | procedure, but not the start of the block within in. When we see | |
416 | the start of that block, we change it to stNil, without pushing a | |
417 | new block, i.e. stNil means both a procedure and a block. */ | |
418 | ||
419 | int blocktype; | |
420 | ||
025bb325 MS |
421 | struct type *cur_type; /* Type we parse fields for. */ |
422 | int cur_field; /* Field number in cur_type. */ | |
423 | CORE_ADDR procadr; /* Start addres of this procedure. */ | |
424 | int numargs; /* Its argument count. */ | |
c5aa993b | 425 | } |
c906108c SS |
426 | |
427 | *top_stack; /* Top stack ptr */ | |
428 | ||
429 | ||
025bb325 | 430 | /* Enter a new lexical context. */ |
c906108c SS |
431 | |
432 | static void | |
fba45db2 | 433 | push_parse_stack (void) |
c906108c | 434 | { |
fe978cb0 | 435 | struct parse_stack *newobj; |
c906108c | 436 | |
025bb325 | 437 | /* Reuse frames if possible. */ |
c906108c | 438 | if (top_stack && top_stack->prev) |
fe978cb0 | 439 | newobj = top_stack->prev; |
c906108c | 440 | else |
8d749320 | 441 | newobj = XCNEW (struct parse_stack); |
025bb325 | 442 | /* Initialize new frame with previous content. */ |
c906108c SS |
443 | if (top_stack) |
444 | { | |
fe978cb0 | 445 | struct parse_stack *prev = newobj->prev; |
c906108c | 446 | |
fe978cb0 PA |
447 | *newobj = *top_stack; |
448 | top_stack->prev = newobj; | |
449 | newobj->prev = prev; | |
450 | newobj->next = top_stack; | |
c906108c | 451 | } |
fe978cb0 | 452 | top_stack = newobj; |
c906108c SS |
453 | } |
454 | ||
025bb325 | 455 | /* Exit a lexical context. */ |
c906108c SS |
456 | |
457 | static void | |
fba45db2 | 458 | pop_parse_stack (void) |
c906108c SS |
459 | { |
460 | if (!top_stack) | |
461 | return; | |
462 | if (top_stack->next) | |
463 | top_stack = top_stack->next; | |
464 | } | |
465 | ||
466 | ||
467 | /* Cross-references might be to things we haven't looked at | |
468 | yet, e.g. type references. To avoid too many type | |
469 | duplications we keep a quick fixup table, an array | |
025bb325 | 470 | of lists of references indexed by file descriptor. */ |
c906108c SS |
471 | |
472 | struct mdebug_pending | |
473 | { | |
474 | struct mdebug_pending *next; /* link */ | |
475 | char *s; /* the unswapped symbol */ | |
476 | struct type *t; /* its partial type descriptor */ | |
477 | }; | |
478 | ||
479 | ||
b8b98ad1 TT |
480 | /* The pending information is kept for an entire object file. We |
481 | allocate the pending information table when we create the partial | |
482 | symbols, and we store a pointer to the single table in each | |
483 | psymtab. */ | |
c906108c SS |
484 | |
485 | static struct mdebug_pending **pending_list; | |
486 | ||
025bb325 | 487 | /* Check whether we already saw symbol SH in file FH. */ |
c906108c SS |
488 | |
489 | static struct mdebug_pending * | |
fba45db2 | 490 | is_pending_symbol (FDR *fh, char *sh) |
c906108c SS |
491 | { |
492 | int f_idx = fh - debug_info->fdr; | |
52f0bd74 | 493 | struct mdebug_pending *p; |
c906108c | 494 | |
025bb325 | 495 | /* Linear search is ok, list is typically no more than 10 deep. */ |
c906108c SS |
496 | for (p = pending_list[f_idx]; p; p = p->next) |
497 | if (p->s == sh) | |
498 | break; | |
499 | return p; | |
500 | } | |
501 | ||
025bb325 | 502 | /* Add a new symbol SH of type T. */ |
c906108c SS |
503 | |
504 | static void | |
fba45db2 | 505 | add_pending (FDR *fh, char *sh, struct type *t) |
c906108c SS |
506 | { |
507 | int f_idx = fh - debug_info->fdr; | |
508 | struct mdebug_pending *p = is_pending_symbol (fh, sh); | |
509 | ||
025bb325 | 510 | /* Make sure we do not make duplicates. */ |
c906108c SS |
511 | if (!p) |
512 | { | |
513 | p = ((struct mdebug_pending *) | |
dd707e8e | 514 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
c906108c SS |
515 | sizeof (struct mdebug_pending))); |
516 | p->s = sh; | |
517 | p->t = t; | |
518 | p->next = pending_list[f_idx]; | |
519 | pending_list[f_idx] = p; | |
520 | } | |
521 | } | |
522 | \f | |
523 | ||
025bb325 | 524 | /* Parsing Routines proper. */ |
c906108c | 525 | |
0fde2c53 DE |
526 | static void |
527 | reg_value_complaint (int regnum, int num_regs, const char *sym) | |
528 | { | |
529 | complaint (&symfile_complaints, | |
530 | _("bad register number %d (max %d) in symbol %s"), | |
531 | regnum, num_regs - 1, sym); | |
532 | } | |
533 | ||
025bb325 | 534 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. |
c906108c SS |
535 | For blocks, procedures and types we open a new lexical context. |
536 | This is basically just a big switch on the symbol's type. Argument | |
537 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
538 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
539 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
540 | aux symbols are big-endian or little-endian. Return count of | |
541 | SYMR's handled (normally one). */ | |
542 | ||
768a979c UW |
543 | static int |
544 | mdebug_reg_to_regnum (struct symbol *sym, struct gdbarch *gdbarch) | |
545 | { | |
0fde2c53 DE |
546 | int regno = gdbarch_ecoff_reg_to_regnum (gdbarch, SYMBOL_VALUE (sym)); |
547 | ||
548 | if (regno < 0 | |
549 | || regno >= (gdbarch_num_regs (gdbarch) | |
550 | + gdbarch_num_pseudo_regs (gdbarch))) | |
551 | { | |
552 | reg_value_complaint (regno, | |
553 | gdbarch_num_regs (gdbarch) | |
554 | + gdbarch_num_pseudo_regs (gdbarch), | |
555 | SYMBOL_PRINT_NAME (sym)); | |
556 | ||
557 | regno = gdbarch_sp_regnum (gdbarch); /* Known safe, though useless. */ | |
558 | } | |
559 | ||
560 | return regno; | |
768a979c UW |
561 | } |
562 | ||
563 | static const struct symbol_register_ops mdebug_register_funcs = { | |
564 | mdebug_reg_to_regnum | |
565 | }; | |
566 | ||
f1e6e072 TT |
567 | /* The "aclass" indices for computed symbols. */ |
568 | ||
569 | static int mdebug_register_index; | |
570 | static int mdebug_regparm_index; | |
571 | ||
d2242e34 PA |
572 | /* Common code for symbols describing data. */ |
573 | ||
574 | static void | |
575 | add_data_symbol (SYMR *sh, union aux_ext *ax, int bigend, | |
576 | struct symbol *s, int aclass_index, struct block *b, | |
a121b7c1 | 577 | struct objfile *objfile, const char *name) |
d2242e34 PA |
578 | { |
579 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; | |
580 | SYMBOL_ACLASS_INDEX (s) = aclass_index; | |
581 | add_symbol (s, top_stack->cur_st, b); | |
582 | ||
583 | /* Type could be missing if file is compiled without debugging info. */ | |
584 | if (SC_IS_UNDEF (sh->sc) | |
585 | || sh->sc == scNil || sh->index == indexNil) | |
586 | SYMBOL_TYPE (s) = objfile_type (objfile)->nodebug_data_symbol; | |
587 | else | |
588 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
589 | /* Value of a data symbol is its memory address. */ | |
590 | } | |
591 | ||
c906108c | 592 | static int |
fba45db2 KB |
593 | parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend, |
594 | struct section_offsets *section_offsets, struct objfile *objfile) | |
c906108c | 595 | { |
5e2b427d | 596 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c | 597 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
12b9c64f | 598 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
a121b7c1 | 599 | const char *name; |
c906108c SS |
600 | struct symbol *s; |
601 | struct block *b; | |
602 | struct mdebug_pending *pend; | |
603 | struct type *t; | |
604 | struct field *f; | |
605 | int count = 1; | |
c906108c SS |
606 | TIR tir; |
607 | long svalue = sh->value; | |
608 | int bitsize; | |
609 | ||
610 | if (ext_sh == (char *) NULL) | |
611 | name = debug_info->ssext + sh->iss; | |
612 | else | |
613 | name = debug_info->ss + cur_fdr->issBase + sh->iss; | |
614 | ||
615 | switch (sh->sc) | |
616 | { | |
617 | case scText: | |
618 | case scRConst: | |
619 | /* Do not relocate relative values. | |
c5aa993b JM |
620 | The value of a stEnd symbol is the displacement from the |
621 | corresponding start symbol value. | |
622 | The value of a stBlock symbol is the displacement from the | |
623 | procedure address. */ | |
c906108c | 624 | if (sh->st != stEnd && sh->st != stBlock) |
b8fbeb18 | 625 | sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile)); |
c906108c SS |
626 | break; |
627 | case scData: | |
628 | case scSData: | |
629 | case scRData: | |
630 | case scPData: | |
631 | case scXData: | |
b8fbeb18 | 632 | sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile)); |
c906108c SS |
633 | break; |
634 | case scBss: | |
635 | case scSBss: | |
b8fbeb18 | 636 | sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile)); |
c906108c SS |
637 | break; |
638 | } | |
639 | ||
640 | switch (sh->st) | |
641 | { | |
642 | case stNil: | |
643 | break; | |
644 | ||
025bb325 | 645 | case stGlobal: /* External symbol, goes into global block. */ |
439247b6 | 646 | b = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack->cur_st), |
c906108c SS |
647 | GLOBAL_BLOCK); |
648 | s = new_symbol (name); | |
649 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
d2242e34 PA |
650 | add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name); |
651 | break; | |
c906108c | 652 | |
025bb325 | 653 | case stStatic: /* Static data, goes into current block. */ |
c906108c SS |
654 | b = top_stack->cur_block; |
655 | s = new_symbol (name); | |
c5aa993b | 656 | if (SC_IS_COMMON (sh->sc)) |
c906108c SS |
657 | { |
658 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
659 | address is not in the symbol; we need to fix it later in | |
660 | scan_file_globals. */ | |
3567439c | 661 | int bucket = hashname (SYMBOL_LINKAGE_NAME (s)); |
c906108c SS |
662 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; |
663 | global_sym_chain[bucket] = s; | |
664 | } | |
665 | else | |
666 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
d2242e34 PA |
667 | add_data_symbol (sh, ax, bigend, s, LOC_STATIC, b, objfile, name); |
668 | break; | |
c906108c | 669 | |
025bb325 | 670 | case stLocal: /* Local variable, goes into current block. */ |
768a979c UW |
671 | b = top_stack->cur_block; |
672 | s = new_symbol (name); | |
673 | SYMBOL_VALUE (s) = svalue; | |
c906108c | 674 | if (sh->sc == scRegister) |
d2242e34 PA |
675 | add_data_symbol (sh, ax, bigend, s, mdebug_register_index, |
676 | b, objfile, name); | |
c906108c | 677 | else |
d2242e34 PA |
678 | add_data_symbol (sh, ax, bigend, s, LOC_LOCAL, |
679 | b, objfile, name); | |
c906108c SS |
680 | break; |
681 | ||
025bb325 MS |
682 | case stParam: /* Arg to procedure, goes into current |
683 | block. */ | |
c906108c SS |
684 | max_gdbinfo++; |
685 | found_ecoff_debugging_info = 1; | |
686 | top_stack->numargs++; | |
687 | ||
688 | /* Special GNU C++ name. */ | |
689 | if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0) | |
025bb325 | 690 | name = "this"; /* FIXME, not alloc'd in obstack. */ |
c906108c SS |
691 | s = new_symbol (name); |
692 | ||
176620f1 | 693 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
2a2d4dc3 | 694 | SYMBOL_IS_ARGUMENT (s) = 1; |
c906108c SS |
695 | switch (sh->sc) |
696 | { | |
697 | case scRegister: | |
698 | /* Pass by value in register. */ | |
f1e6e072 | 699 | SYMBOL_ACLASS_INDEX (s) = mdebug_register_index; |
c906108c SS |
700 | break; |
701 | case scVar: | |
702 | /* Pass by reference on stack. */ | |
f1e6e072 | 703 | SYMBOL_ACLASS_INDEX (s) = LOC_REF_ARG; |
c906108c SS |
704 | break; |
705 | case scVarRegister: | |
706 | /* Pass by reference in register. */ | |
f1e6e072 | 707 | SYMBOL_ACLASS_INDEX (s) = mdebug_regparm_index; |
c906108c SS |
708 | break; |
709 | default: | |
710 | /* Pass by value on stack. */ | |
f1e6e072 | 711 | SYMBOL_ACLASS_INDEX (s) = LOC_ARG; |
c906108c SS |
712 | break; |
713 | } | |
714 | SYMBOL_VALUE (s) = svalue; | |
715 | SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name); | |
c7efd0b9 | 716 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
717 | break; |
718 | ||
025bb325 | 719 | case stLabel: /* label, goes into current block. */ |
c906108c | 720 | s = new_symbol (name); |
025bb325 | 721 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; /* So that it can be used */ |
f1e6e072 | 722 | SYMBOL_ACLASS_INDEX (s) = LOC_LABEL; /* but not misused. */ |
c906108c | 723 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
46bf5051 | 724 | SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_int; |
c7efd0b9 | 725 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
726 | break; |
727 | ||
025bb325 MS |
728 | case stProc: /* Procedure, usually goes into global block. */ |
729 | case stStaticProc: /* Static procedure, goes into current block. */ | |
1fb4c65b JB |
730 | /* For stProc symbol records, we need to check the storage class |
731 | as well, as only (stProc, scText) entries represent "real" | |
732 | procedures - See the Compaq document titled "Object File / | |
733 | Symbol Table Format Specification" for more information. | |
734 | If the storage class is not scText, we discard the whole block | |
735 | of symbol records for this stProc. */ | |
736 | if (sh->st == stProc && sh->sc != scText) | |
737 | { | |
738 | char *ext_tsym = ext_sh; | |
739 | int keep_counting = 1; | |
740 | SYMR tsym; | |
741 | ||
742 | while (keep_counting) | |
743 | { | |
744 | ext_tsym += external_sym_size; | |
745 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
746 | count++; | |
747 | switch (tsym.st) | |
748 | { | |
749 | case stParam: | |
750 | break; | |
751 | case stEnd: | |
752 | keep_counting = 0; | |
753 | break; | |
754 | default: | |
755 | complaint (&symfile_complaints, | |
e2e0b3e5 | 756 | _("unknown symbol type 0x%x"), sh->st); |
1fb4c65b JB |
757 | break; |
758 | } | |
759 | } | |
760 | break; | |
761 | } | |
c906108c | 762 | s = new_symbol (name); |
176620f1 | 763 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
f1e6e072 | 764 | SYMBOL_ACLASS_INDEX (s) = LOC_BLOCK; |
025bb325 | 765 | /* Type of the return value. */ |
c5aa993b | 766 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
46bf5051 | 767 | t = objfile_type (objfile)->builtin_int; |
c906108c SS |
768 | else |
769 | { | |
770 | t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name); | |
ee300cd4 AC |
771 | if (strcmp (name, "malloc") == 0 |
772 | && TYPE_CODE (t) == TYPE_CODE_VOID) | |
c906108c SS |
773 | { |
774 | /* I don't know why, but, at least under Alpha GNU/Linux, | |
c5aa993b JM |
775 | when linking against a malloc without debugging |
776 | symbols, its read as a function returning void---this | |
777 | is bad because it means we cannot call functions with | |
778 | string arguments interactively; i.e., "call | |
779 | printf("howdy\n")" would fail with the error message | |
780 | "program has no memory available". To avoid this, we | |
781 | patch up the type and make it void* | |
025bb325 | 782 | instead. (davidm@azstarnet.com). */ |
c906108c SS |
783 | t = make_pointer_type (t, NULL); |
784 | } | |
785 | } | |
786 | b = top_stack->cur_block; | |
787 | if (sh->st == stProc) | |
788 | { | |
439247b6 DE |
789 | const struct blockvector *bv |
790 | = SYMTAB_BLOCKVECTOR (top_stack->cur_st); | |
b8d56208 | 791 | |
c906108c SS |
792 | /* The next test should normally be true, but provides a |
793 | hook for nested functions (which we don't want to make | |
28397f59 | 794 | global). */ |
c906108c SS |
795 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
796 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
797 | /* Irix 5 sometimes has duplicate names for the same | |
798 | function. We want to add such names up at the global | |
799 | level, not as a nested function. */ | |
800 | else if (sh->value == top_stack->procadr) | |
801 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
802 | } | |
c7efd0b9 | 803 | add_symbol (s, top_stack->cur_st, b); |
c906108c | 804 | |
025bb325 | 805 | /* Make a type for the procedure itself. */ |
c906108c SS |
806 | SYMBOL_TYPE (s) = lookup_function_type (t); |
807 | ||
1e698235 DJ |
808 | /* All functions in C++ have prototypes. For C we don't have enough |
809 | information in the debug info. */ | |
810 | if (SYMBOL_LANGUAGE (s) == language_cplus) | |
876cecd0 | 811 | TYPE_PROTOTYPED (SYMBOL_TYPE (s)) = 1; |
1e698235 | 812 | |
025bb325 | 813 | /* Create and enter a new lexical context. */ |
de4f826b | 814 | b = new_block (FUNCTION_BLOCK); |
c906108c SS |
815 | SYMBOL_BLOCK_VALUE (s) = b; |
816 | BLOCK_FUNCTION (b) = s; | |
817 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
818 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
819 | add_block (b, top_stack->cur_st); | |
820 | ||
025bb325 | 821 | /* Not if we only have partial info. */ |
c5aa993b | 822 | if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil) |
c906108c SS |
823 | break; |
824 | ||
825 | push_parse_stack (); | |
826 | top_stack->cur_block = b; | |
827 | top_stack->blocktype = sh->st; | |
828 | top_stack->cur_type = SYMBOL_TYPE (s); | |
829 | top_stack->cur_field = -1; | |
830 | top_stack->procadr = sh->value; | |
831 | top_stack->numargs = 0; | |
832 | break; | |
833 | ||
834 | /* Beginning of code for structure, union, and enum definitions. | |
c5aa993b | 835 | They all share a common set of local variables, defined here. */ |
c906108c SS |
836 | { |
837 | enum type_code type_code; | |
838 | char *ext_tsym; | |
839 | int nfields; | |
840 | long max_value; | |
841 | struct field *f; | |
842 | ||
025bb325 | 843 | case stStruct: /* Start a block defining a struct type. */ |
c906108c SS |
844 | type_code = TYPE_CODE_STRUCT; |
845 | goto structured_common; | |
846 | ||
025bb325 | 847 | case stUnion: /* Start a block defining a union type. */ |
c906108c SS |
848 | type_code = TYPE_CODE_UNION; |
849 | goto structured_common; | |
850 | ||
025bb325 | 851 | case stEnum: /* Start a block defining an enum type. */ |
c906108c SS |
852 | type_code = TYPE_CODE_ENUM; |
853 | goto structured_common; | |
854 | ||
025bb325 | 855 | case stBlock: /* Either a lexical block, or some type. */ |
c5aa993b | 856 | if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc)) |
c906108c SS |
857 | goto case_stBlock_code; /* Lexical block */ |
858 | ||
859 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
860 | ||
861 | /* Common code for handling struct, union, enum, and/or as-yet- | |
862 | unknown-type blocks of info about structured data. `type_code' | |
863 | has been set to the proper TYPE_CODE, if we know it. */ | |
864 | structured_common: | |
865 | found_ecoff_debugging_info = 1; | |
866 | push_parse_stack (); | |
867 | top_stack->blocktype = stBlock; | |
868 | ||
025bb325 | 869 | /* First count the number of fields and the highest value. */ |
c906108c SS |
870 | nfields = 0; |
871 | max_value = 0; | |
872 | for (ext_tsym = ext_sh + external_sym_size; | |
873 | ; | |
874 | ext_tsym += external_sym_size) | |
875 | { | |
876 | SYMR tsym; | |
877 | ||
878 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
879 | ||
880 | switch (tsym.st) | |
881 | { | |
882 | case stEnd: | |
f0394be6 | 883 | /* C++ encodes class types as structures where there the |
025bb325 | 884 | methods are encoded as stProc. The scope of stProc |
f0394be6 JB |
885 | symbols also ends with stEnd, thus creating a risk of |
886 | taking the wrong stEnd symbol record as the end of | |
887 | the current struct, which would cause GDB to undercount | |
888 | the real number of fields in this struct. To make sure | |
889 | we really reached the right stEnd symbol record, we | |
890 | check the associated name, and match it against the | |
891 | struct name. Since method names are mangled while | |
892 | the class name is not, there is no risk of having a | |
893 | method whose name is identical to the class name | |
894 | (in particular constructor method names are different | |
895 | from the class name). There is therefore no risk that | |
7bde8967 KB |
896 | this check stops the count on the StEnd of a method. |
897 | ||
898 | Also, assume that we're really at the end when tsym.iss | |
899 | is 0 (issNull). */ | |
900 | if (tsym.iss == issNull | |
901 | || strcmp (debug_info->ss + cur_fdr->issBase + tsym.iss, | |
902 | name) == 0) | |
f0394be6 JB |
903 | goto end_of_fields; |
904 | break; | |
c906108c SS |
905 | |
906 | case stMember: | |
907 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
908 | { |
909 | /* If the type of the member is Nil (or Void), | |
910 | without qualifiers, assume the tag is an | |
911 | enumeration. | |
912 | Alpha cc -migrate enums are recognized by a zero | |
913 | index and a zero symbol value. | |
914 | DU 4.0 cc enums are recognized by a member type of | |
915 | btEnum without qualifiers and a zero symbol value. */ | |
916 | if (tsym.index == indexNil | |
917 | || (tsym.index == 0 && sh->value == 0)) | |
918 | type_code = TYPE_CODE_ENUM; | |
919 | else | |
920 | { | |
921 | (*debug_swap->swap_tir_in) (bigend, | |
922 | &ax[tsym.index].a_ti, | |
923 | &tir); | |
924 | if ((tir.bt == btNil || tir.bt == btVoid | |
925 | || (tir.bt == btEnum && sh->value == 0)) | |
926 | && tir.tq0 == tqNil) | |
927 | type_code = TYPE_CODE_ENUM; | |
928 | } | |
929 | } | |
c906108c SS |
930 | nfields++; |
931 | if (tsym.value > max_value) | |
932 | max_value = tsym.value; | |
933 | break; | |
934 | ||
935 | case stBlock: | |
936 | case stUnion: | |
937 | case stEnum: | |
938 | case stStruct: | |
939 | { | |
940 | #if 0 | |
941 | /* This is a no-op; is it trying to tell us something | |
942 | we should be checking? */ | |
c5aa993b | 943 | if (tsym.sc == scVariant); /*UNIMPLEMENTED */ |
c906108c SS |
944 | #endif |
945 | if (tsym.index != 0) | |
946 | { | |
947 | /* This is something like a struct within a | |
c5aa993b JM |
948 | struct. Skip over the fields of the inner |
949 | struct. The -1 is because the for loop will | |
950 | increment ext_tsym. */ | |
c906108c SS |
951 | ext_tsym = ((char *) debug_info->external_sym |
952 | + ((cur_fdr->isymBase + tsym.index - 1) | |
953 | * external_sym_size)); | |
954 | } | |
955 | } | |
956 | break; | |
957 | ||
958 | case stTypedef: | |
959 | /* mips cc puts out a typedef for struct x if it is not yet | |
960 | defined when it encounters | |
961 | struct y { struct x *xp; }; | |
025bb325 | 962 | Just ignore it. */ |
c906108c SS |
963 | break; |
964 | ||
965 | case stIndirect: | |
966 | /* Irix5 cc puts out a stIndirect for struct x if it is not | |
967 | yet defined when it encounters | |
968 | struct y { struct x *xp; }; | |
025bb325 | 969 | Just ignore it. */ |
c906108c SS |
970 | break; |
971 | ||
972 | default: | |
23136709 | 973 | complaint (&symfile_complaints, |
3e43a32a MS |
974 | _("declaration block contains " |
975 | "unhandled symbol type %d"), | |
23136709 | 976 | tsym.st); |
c906108c SS |
977 | } |
978 | } | |
82ae4854 | 979 | end_of_fields: |
c906108c SS |
980 | |
981 | /* In an stBlock, there is no way to distinguish structs, | |
982 | unions, and enums at this point. This is a bug in the | |
983 | original design (that has been fixed with the recent | |
984 | addition of the stStruct, stUnion, and stEnum symbol | |
985 | types.) The way you can tell is if/when you see a variable | |
986 | or field of that type. In that case the variable's type | |
987 | (in the AUX table) says if the type is struct, union, or | |
988 | enum, and points back to the stBlock here. So you can | |
989 | patch the tag kind up later - but only if there actually is | |
990 | a variable or field of that type. | |
991 | ||
992 | So until we know for sure, we will guess at this point. | |
993 | The heuristic is: | |
994 | If the first member has index==indexNil or a void type, | |
995 | assume we have an enumeration. | |
996 | Otherwise, if there is more than one member, and all | |
997 | the members have offset 0, assume we have a union. | |
998 | Otherwise, assume we have a struct. | |
999 | ||
1000 | The heuristic could guess wrong in the case of of an | |
1001 | enumeration with no members or a union with one (or zero) | |
1002 | members, or when all except the last field of a struct have | |
1003 | width zero. These are uncommon and/or illegal situations, | |
1004 | and in any case guessing wrong probably doesn't matter | |
1005 | much. | |
1006 | ||
1007 | But if we later do find out we were wrong, we fixup the tag | |
1008 | kind. Members of an enumeration must be handled | |
1009 | differently from struct/union fields, and that is harder to | |
1010 | patch up, but luckily we shouldn't need to. (If there are | |
1011 | any enumeration members, we can tell for sure it's an enum | |
025bb325 | 1012 | here.) */ |
c906108c SS |
1013 | |
1014 | if (type_code == TYPE_CODE_UNDEF) | |
7a292a7a SS |
1015 | { |
1016 | if (nfields > 1 && max_value == 0) | |
1017 | type_code = TYPE_CODE_UNION; | |
1018 | else | |
1019 | type_code = TYPE_CODE_STRUCT; | |
1020 | } | |
c906108c SS |
1021 | |
1022 | /* Create a new type or use the pending type. */ | |
1023 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1024 | if (pend == (struct mdebug_pending *) NULL) | |
1025 | { | |
1026 | t = new_type (NULL); | |
1027 | add_pending (cur_fdr, ext_sh, t); | |
1028 | } | |
1029 | else | |
1030 | t = pend->t; | |
1031 | ||
1032 | /* Do not set the tag name if it is a compiler generated tag name | |
1033 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. | |
1034 | Alpha cc puts out an sh->iss of zero for those. */ | |
1035 | if (sh->iss == 0 || name[0] == '.' || name[0] == '\0') | |
1036 | TYPE_TAG_NAME (t) = NULL; | |
1037 | else | |
dd707e8e | 1038 | TYPE_TAG_NAME (t) = obconcat (&mdebugread_objfile->objfile_obstack, |
3e43a32a | 1039 | name, (char *) NULL); |
c906108c SS |
1040 | |
1041 | TYPE_CODE (t) = type_code; | |
1042 | TYPE_LENGTH (t) = sh->value; | |
1043 | TYPE_NFIELDS (t) = nfields; | |
1044 | TYPE_FIELDS (t) = f = ((struct field *) | |
1045 | TYPE_ALLOC (t, | |
1046 | nfields * sizeof (struct field))); | |
1047 | ||
1048 | if (type_code == TYPE_CODE_ENUM) | |
1049 | { | |
1050 | int unsigned_enum = 1; | |
1051 | ||
025bb325 | 1052 | /* This is a non-empty enum. */ |
c906108c SS |
1053 | |
1054 | /* DEC c89 has the number of enumerators in the sh.value field, | |
1055 | not the type length, so we have to compensate for that | |
1056 | incompatibility quirk. | |
1057 | This might do the wrong thing for an enum with one or two | |
1058 | enumerators and gcc -gcoff -fshort-enums, but these cases | |
1059 | are hopefully rare enough. | |
1060 | Alpha cc -migrate has a sh.value field of zero, we adjust | |
1061 | that too. */ | |
1062 | if (TYPE_LENGTH (t) == TYPE_NFIELDS (t) | |
1063 | || TYPE_LENGTH (t) == 0) | |
5e2b427d | 1064 | TYPE_LENGTH (t) = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; |
c906108c SS |
1065 | for (ext_tsym = ext_sh + external_sym_size; |
1066 | ; | |
1067 | ext_tsym += external_sym_size) | |
1068 | { | |
1069 | SYMR tsym; | |
1070 | struct symbol *enum_sym; | |
1071 | ||
1072 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); | |
1073 | ||
1074 | if (tsym.st != stMember) | |
1075 | break; | |
1076 | ||
14e75d8e | 1077 | SET_FIELD_ENUMVAL (*f, tsym.value); |
c906108c SS |
1078 | FIELD_TYPE (*f) = t; |
1079 | FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss; | |
1080 | FIELD_BITSIZE (*f) = 0; | |
1081 | ||
e623cf5d | 1082 | enum_sym = allocate_symbol (mdebugread_objfile); |
3567439c | 1083 | SYMBOL_SET_LINKAGE_NAME |
10f0c4bb | 1084 | (enum_sym, |
224c3ddb SM |
1085 | (char *) obstack_copy0 (&mdebugread_objfile->objfile_obstack, |
1086 | f->name, strlen (f->name))); | |
f1e6e072 | 1087 | SYMBOL_ACLASS_INDEX (enum_sym) = LOC_CONST; |
c906108c | 1088 | SYMBOL_TYPE (enum_sym) = t; |
176620f1 | 1089 | SYMBOL_DOMAIN (enum_sym) = VAR_DOMAIN; |
c906108c SS |
1090 | SYMBOL_VALUE (enum_sym) = tsym.value; |
1091 | if (SYMBOL_VALUE (enum_sym) < 0) | |
1092 | unsigned_enum = 0; | |
c7efd0b9 | 1093 | add_symbol (enum_sym, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1094 | |
025bb325 | 1095 | /* Skip the stMembers that we've handled. */ |
c906108c SS |
1096 | count++; |
1097 | f++; | |
1098 | } | |
1099 | if (unsigned_enum) | |
876cecd0 | 1100 | TYPE_UNSIGNED (t) = 1; |
c906108c | 1101 | } |
025bb325 | 1102 | /* Make this the current type. */ |
c906108c SS |
1103 | top_stack->cur_type = t; |
1104 | top_stack->cur_field = 0; | |
1105 | ||
1106 | /* Do not create a symbol for alpha cc unnamed structs. */ | |
1107 | if (sh->iss == 0) | |
1108 | break; | |
1109 | ||
1110 | /* gcc puts out an empty struct for an opaque struct definitions, | |
1111 | do not create a symbol for it either. */ | |
1112 | if (TYPE_NFIELDS (t) == 0) | |
1113 | { | |
876cecd0 | 1114 | TYPE_STUB (t) = 1; |
c906108c SS |
1115 | break; |
1116 | } | |
1117 | ||
1118 | s = new_symbol (name); | |
176620f1 | 1119 | SYMBOL_DOMAIN (s) = STRUCT_DOMAIN; |
f1e6e072 | 1120 | SYMBOL_ACLASS_INDEX (s) = LOC_TYPEDEF; |
c906108c SS |
1121 | SYMBOL_VALUE (s) = 0; |
1122 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1123 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1124 | break; |
1125 | ||
1126 | /* End of local variables shared by struct, union, enum, and | |
1127 | block (as yet unknown struct/union/enum) processing. */ | |
1128 | } | |
1129 | ||
1130 | case_stBlock_code: | |
1131 | found_ecoff_debugging_info = 1; | |
025bb325 MS |
1132 | /* Beginnning of (code) block. Value of symbol |
1133 | is the displacement from procedure start. */ | |
c906108c SS |
1134 | push_parse_stack (); |
1135 | ||
1136 | /* Do not start a new block if this is the outermost block of a | |
c5aa993b JM |
1137 | procedure. This allows the LOC_BLOCK symbol to point to the |
1138 | block with the local variables, so funcname::var works. */ | |
c906108c SS |
1139 | if (top_stack->blocktype == stProc |
1140 | || top_stack->blocktype == stStaticProc) | |
1141 | { | |
1142 | top_stack->blocktype = stNil; | |
1143 | break; | |
1144 | } | |
1145 | ||
1146 | top_stack->blocktype = stBlock; | |
de4f826b | 1147 | b = new_block (NON_FUNCTION_BLOCK); |
c906108c SS |
1148 | BLOCK_START (b) = sh->value + top_stack->procadr; |
1149 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1150 | top_stack->cur_block = b; | |
1151 | add_block (b, top_stack->cur_st); | |
1152 | break; | |
1153 | ||
1154 | case stEnd: /* end (of anything) */ | |
c5aa993b | 1155 | if (sh->sc == scInfo || SC_IS_COMMON (sh->sc)) |
c906108c SS |
1156 | { |
1157 | /* Finished with type */ | |
1158 | top_stack->cur_type = 0; | |
1159 | } | |
1160 | else if (sh->sc == scText && | |
1161 | (top_stack->blocktype == stProc || | |
1162 | top_stack->blocktype == stStaticProc)) | |
1163 | { | |
1164 | /* Finished with procedure */ | |
439247b6 DE |
1165 | const struct blockvector *bv |
1166 | = SYMTAB_BLOCKVECTOR (top_stack->cur_st); | |
f92761ec | 1167 | struct mdebug_extra_func_info *e; |
de4f826b | 1168 | struct block *b = top_stack->cur_block; |
c906108c SS |
1169 | struct type *ftype = top_stack->cur_type; |
1170 | int i; | |
1171 | ||
1172 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1173 | ||
025bb325 | 1174 | /* Make up special symbol to contain procedure specific info. */ |
f92761ec | 1175 | s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
176620f1 | 1176 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
f1e6e072 | 1177 | SYMBOL_ACLASS_INDEX (s) = LOC_CONST; |
dd707e8e | 1178 | SYMBOL_TYPE (s) = objfile_type (mdebugread_objfile)->builtin_void; |
f92761ec | 1179 | e = ((struct mdebug_extra_func_info *) |
dd707e8e | 1180 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
f92761ec AC |
1181 | sizeof (struct mdebug_extra_func_info))); |
1182 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); | |
9918cab9 | 1183 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
1184 | e->numargs = top_stack->numargs; |
1185 | e->pdr.framereg = -1; | |
c7efd0b9 | 1186 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c | 1187 | |
c906108c SS |
1188 | /* f77 emits proc-level with address bounds==[0,0], |
1189 | So look for such child blocks, and patch them. */ | |
1190 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
1191 | { | |
1192 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
b8d56208 | 1193 | |
c906108c SS |
1194 | if (BLOCK_SUPERBLOCK (b_bad) == b |
1195 | && BLOCK_START (b_bad) == top_stack->procadr | |
1196 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1197 | { | |
1198 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1199 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | if (TYPE_NFIELDS (ftype) <= 0) | |
1204 | { | |
1205 | /* No parameter type information is recorded with the function's | |
025bb325 | 1206 | type. Set that from the type of the parameter symbols. */ |
c906108c SS |
1207 | int nparams = top_stack->numargs; |
1208 | int iparams; | |
1209 | struct symbol *sym; | |
1210 | ||
1211 | if (nparams > 0) | |
1212 | { | |
8157b174 | 1213 | struct block_iterator iter; |
b8d56208 | 1214 | |
c906108c SS |
1215 | TYPE_NFIELDS (ftype) = nparams; |
1216 | TYPE_FIELDS (ftype) = (struct field *) | |
1217 | TYPE_ALLOC (ftype, nparams * sizeof (struct field)); | |
c5aa993b | 1218 | |
de4f826b DC |
1219 | iparams = 0; |
1220 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
c906108c | 1221 | { |
de4f826b DC |
1222 | if (iparams == nparams) |
1223 | break; | |
1224 | ||
2a2d4dc3 | 1225 | if (SYMBOL_IS_ARGUMENT (sym)) |
c906108c | 1226 | { |
c906108c | 1227 | TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym); |
8176bb6d | 1228 | TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0; |
c906108c | 1229 | iparams++; |
c906108c SS |
1230 | } |
1231 | } | |
1232 | } | |
1233 | } | |
1234 | } | |
1235 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1236 | { | |
025bb325 | 1237 | /* End of (code) block. The value of the symbol is the |
c906108c | 1238 | displacement from the procedure`s start address of the |
025bb325 | 1239 | end of this block. */ |
c906108c | 1240 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
c906108c SS |
1241 | } |
1242 | else if (sh->sc == scText && top_stack->blocktype == stNil) | |
1243 | { | |
1244 | /* End of outermost block. Pop parse stack and ignore. The | |
1245 | following stEnd of stProc will take care of the block. */ | |
1246 | ; | |
1247 | } | |
1248 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1249 | { | |
1250 | /* End of file. Pop parse stack and ignore. Higher | |
1251 | level code deals with this. */ | |
1252 | ; | |
1253 | } | |
1254 | else | |
23136709 | 1255 | complaint (&symfile_complaints, |
e2e0b3e5 | 1256 | _("stEnd with storage class %d not handled"), sh->sc); |
c906108c | 1257 | |
025bb325 | 1258 | pop_parse_stack (); /* Restore previous lexical context. */ |
c906108c SS |
1259 | break; |
1260 | ||
1261 | case stMember: /* member of struct or union */ | |
1262 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
1263 | FIELD_NAME (*f) = name; | |
d6a843b5 | 1264 | SET_FIELD_BITPOS (*f, sh->value); |
c906108c | 1265 | bitsize = 0; |
3e43a32a MS |
1266 | FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, |
1267 | &bitsize, bigend, name); | |
c906108c SS |
1268 | FIELD_BITSIZE (*f) = bitsize; |
1269 | break; | |
1270 | ||
1271 | case stIndirect: /* forward declaration on Irix5 */ | |
1272 | /* Forward declarations from Irix5 cc are handled by cross_ref, | |
c5aa993b | 1273 | skip them. */ |
c906108c SS |
1274 | break; |
1275 | ||
1276 | case stTypedef: /* type definition */ | |
1277 | found_ecoff_debugging_info = 1; | |
1278 | ||
1279 | /* Typedefs for forward declarations and opaque structs from alpha cc | |
c5aa993b | 1280 | are handled by cross_ref, skip them. */ |
c906108c SS |
1281 | if (sh->iss == 0) |
1282 | break; | |
1283 | ||
1284 | /* Parse the type or use the pending type. */ | |
1285 | pend = is_pending_symbol (cur_fdr, ext_sh); | |
1286 | if (pend == (struct mdebug_pending *) NULL) | |
1287 | { | |
c5aa993b | 1288 | t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name); |
c906108c SS |
1289 | add_pending (cur_fdr, ext_sh, t); |
1290 | } | |
1291 | else | |
1292 | t = pend->t; | |
1293 | ||
025bb325 MS |
1294 | /* Mips cc puts out a typedef with the name of the struct for forward |
1295 | declarations. These should not go into the symbol table and | |
c5aa993b JM |
1296 | TYPE_NAME should not be set for them. |
1297 | They can't be distinguished from an intentional typedef to | |
1298 | the same name however: | |
1299 | x.h: | |
1300 | struct x { int ix; int jx; }; | |
1301 | struct xx; | |
1302 | x.c: | |
1303 | typedef struct x x; | |
1304 | struct xx {int ixx; int jxx; }; | |
1305 | generates a cross referencing stTypedef for x and xx. | |
1306 | The user visible effect of this is that the type of a pointer | |
1307 | to struct foo sometimes is given as `foo *' instead of `struct foo *'. | |
1308 | The problem is fixed with alpha cc and Irix5 cc. */ | |
c906108c SS |
1309 | |
1310 | /* However if the typedef cross references to an opaque aggregate, it | |
c5aa993b | 1311 | is safe to omit it from the symbol table. */ |
c906108c SS |
1312 | |
1313 | if (has_opaque_xref (cur_fdr, sh)) | |
1314 | break; | |
1315 | s = new_symbol (name); | |
176620f1 | 1316 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
f1e6e072 | 1317 | SYMBOL_ACLASS_INDEX (s) = LOC_TYPEDEF; |
c906108c SS |
1318 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; |
1319 | SYMBOL_TYPE (s) = t; | |
c7efd0b9 | 1320 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
c906108c SS |
1321 | |
1322 | /* Incomplete definitions of structs should not get a name. */ | |
1323 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1324 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
c5aa993b | 1325 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT |
c906108c SS |
1326 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) |
1327 | { | |
1328 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1329 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1330 | { | |
1331 | /* If we are giving a name to a type such as "pointer to | |
c5aa993b JM |
1332 | foo" or "function returning foo", we better not set |
1333 | the TYPE_NAME. If the program contains "typedef char | |
1334 | *caddr_t;", we don't want all variables of type char | |
1335 | * to print as caddr_t. This is not just a | |
1336 | consequence of GDB's type management; CC and GCC (at | |
1337 | least through version 2.4) both output variables of | |
1338 | either type char * or caddr_t with the type | |
1339 | refering to the stTypedef symbol for caddr_t. If a future | |
1340 | compiler cleans this up it GDB is not ready for it | |
1341 | yet, but if it becomes ready we somehow need to | |
1342 | disable this check (without breaking the PCC/GCC2.4 | |
1343 | case). | |
1344 | ||
1345 | Sigh. | |
1346 | ||
1347 | Fortunately, this check seems not to be necessary | |
1348 | for anything except pointers or functions. */ | |
c906108c SS |
1349 | } |
1350 | else | |
3567439c | 1351 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_LINKAGE_NAME (s); |
c906108c SS |
1352 | } |
1353 | break; | |
1354 | ||
1355 | case stFile: /* file name */ | |
1356 | push_parse_stack (); | |
1357 | top_stack->blocktype = sh->st; | |
1358 | break; | |
1359 | ||
1360 | /* I`ve never seen these for C */ | |
1361 | case stRegReloc: | |
1362 | break; /* register relocation */ | |
1363 | case stForward: | |
1364 | break; /* forwarding address */ | |
1365 | case stConstant: | |
1366 | break; /* constant */ | |
1367 | default: | |
e2e0b3e5 | 1368 | complaint (&symfile_complaints, _("unknown symbol type 0x%x"), sh->st); |
c906108c SS |
1369 | break; |
1370 | } | |
1371 | ||
1372 | return count; | |
1373 | } | |
1374 | ||
0a9d309a UW |
1375 | /* Basic types. */ |
1376 | ||
1377 | static const struct objfile_data *basic_type_data; | |
1378 | ||
1379 | static struct type * | |
1380 | basic_type (int bt, struct objfile *objfile) | |
1381 | { | |
1382 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
19ba03f4 SM |
1383 | struct type **map_bt |
1384 | = (struct type **) objfile_data (objfile, basic_type_data); | |
0a9d309a UW |
1385 | struct type *tp; |
1386 | ||
1387 | if (bt >= btMax) | |
1388 | return NULL; | |
1389 | ||
1390 | if (!map_bt) | |
1391 | { | |
1392 | map_bt = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
1393 | btMax, struct type *); | |
1394 | set_objfile_data (objfile, basic_type_data, map_bt); | |
1395 | } | |
1396 | ||
1397 | if (map_bt[bt]) | |
1398 | return map_bt[bt]; | |
1399 | ||
1400 | switch (bt) | |
1401 | { | |
1402 | case btNil: | |
46bf5051 | 1403 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1404 | break; |
1405 | ||
1406 | case btAdr: | |
19f392bc UW |
1407 | tp = init_pointer_type (objfile, 32, "adr_32", |
1408 | objfile_type (objfile)->builtin_void); | |
0a9d309a UW |
1409 | break; |
1410 | ||
1411 | case btChar: | |
19f392bc | 1412 | tp = init_integer_type (objfile, 8, 0, "char"); |
c413c448 | 1413 | TYPE_NOSIGN (tp) = 1; |
0a9d309a UW |
1414 | break; |
1415 | ||
1416 | case btUChar: | |
19f392bc | 1417 | tp = init_integer_type (objfile, 8, 1, "unsigned char"); |
0a9d309a UW |
1418 | break; |
1419 | ||
1420 | case btShort: | |
19f392bc | 1421 | tp = init_integer_type (objfile, 16, 0, "short"); |
0a9d309a UW |
1422 | break; |
1423 | ||
1424 | case btUShort: | |
19f392bc | 1425 | tp = init_integer_type (objfile, 16, 1, "unsigned short"); |
0a9d309a UW |
1426 | break; |
1427 | ||
1428 | case btInt: | |
19f392bc | 1429 | tp = init_integer_type (objfile, 32, 0, "int"); |
0a9d309a UW |
1430 | break; |
1431 | ||
1432 | case btUInt: | |
19f392bc | 1433 | tp = init_integer_type (objfile, 32, 1, "unsigned int"); |
0a9d309a UW |
1434 | break; |
1435 | ||
1436 | case btLong: | |
19f392bc | 1437 | tp = init_integer_type (objfile, 32, 0, "long"); |
0a9d309a UW |
1438 | break; |
1439 | ||
1440 | case btULong: | |
19f392bc | 1441 | tp = init_integer_type (objfile, 32, 1, "unsigned long"); |
0a9d309a UW |
1442 | break; |
1443 | ||
1444 | case btFloat: | |
19f392bc | 1445 | tp = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
49f190bc | 1446 | "float", gdbarch_float_format (gdbarch)); |
0a9d309a UW |
1447 | break; |
1448 | ||
1449 | case btDouble: | |
19f392bc | 1450 | tp = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
49f190bc | 1451 | "double", gdbarch_double_format (gdbarch)); |
0a9d309a UW |
1452 | break; |
1453 | ||
1454 | case btComplex: | |
19f392bc UW |
1455 | tp = init_complex_type (objfile, "complex", |
1456 | basic_type (btFloat, objfile)); | |
0a9d309a UW |
1457 | break; |
1458 | ||
1459 | case btDComplex: | |
19f392bc UW |
1460 | tp = init_complex_type (objfile, "double complex", |
1461 | basic_type (btFloat, objfile)); | |
0a9d309a UW |
1462 | break; |
1463 | ||
1464 | case btFixedDec: | |
1465 | /* We use TYPE_CODE_INT to print these as integers. Does this do any | |
1466 | good? Would we be better off with TYPE_CODE_ERROR? Should | |
1467 | TYPE_CODE_ERROR print things in hex if it knows the size? */ | |
19f392bc UW |
1468 | tp = init_integer_type (objfile, gdbarch_int_bit (gdbarch), 0, |
1469 | "fixed decimal"); | |
0a9d309a UW |
1470 | break; |
1471 | ||
1472 | case btFloatDec: | |
19f392bc UW |
1473 | tp = init_type (objfile, TYPE_CODE_ERROR, |
1474 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
1475 | "floating decimal"); | |
0a9d309a UW |
1476 | break; |
1477 | ||
1478 | case btString: | |
1479 | /* Is a "string" the way btString means it the same as TYPE_CODE_STRING? | |
1480 | FIXME. */ | |
19f392bc | 1481 | tp = init_type (objfile, TYPE_CODE_STRING, 1, "string"); |
0a9d309a UW |
1482 | break; |
1483 | ||
1484 | case btVoid: | |
46bf5051 | 1485 | tp = objfile_type (objfile)->builtin_void; |
0a9d309a UW |
1486 | break; |
1487 | ||
1488 | case btLong64: | |
19f392bc | 1489 | tp = init_integer_type (objfile, 64, 0, "long"); |
0a9d309a UW |
1490 | break; |
1491 | ||
1492 | case btULong64: | |
19f392bc | 1493 | tp = init_integer_type (objfile, 64, 1, "unsigned long"); |
0a9d309a UW |
1494 | break; |
1495 | ||
1496 | case btLongLong64: | |
19f392bc | 1497 | tp = init_integer_type (objfile, 64, 0, "long long"); |
0a9d309a UW |
1498 | break; |
1499 | ||
1500 | case btULongLong64: | |
19f392bc | 1501 | tp = init_integer_type (objfile, 64, 1, "unsigned long long"); |
0a9d309a UW |
1502 | break; |
1503 | ||
1504 | case btAdr64: | |
19f392bc UW |
1505 | tp = init_pointer_type (objfile, 64, "adr_64", |
1506 | objfile_type (objfile)->builtin_void); | |
0a9d309a UW |
1507 | break; |
1508 | ||
1509 | case btInt64: | |
19f392bc | 1510 | tp = init_integer_type (objfile, 64, 0, "int"); |
0a9d309a UW |
1511 | break; |
1512 | ||
1513 | case btUInt64: | |
19f392bc | 1514 | tp = init_integer_type (objfile, 64, 1, "unsigned int"); |
0a9d309a UW |
1515 | break; |
1516 | ||
1517 | default: | |
1518 | tp = NULL; | |
1519 | break; | |
1520 | } | |
1521 | ||
1522 | map_bt[bt] = tp; | |
1523 | return tp; | |
1524 | } | |
1525 | ||
c906108c | 1526 | /* Parse the type information provided in the raw AX entries for |
025bb325 | 1527 | the symbol SH. Return the bitfield size in BS, in case. |
c906108c SS |
1528 | We must byte-swap the AX entries before we use them; BIGEND says whether |
1529 | they are big-endian or little-endian (from fh->fBigendian). */ | |
1530 | ||
1531 | static struct type * | |
fba45db2 | 1532 | parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs, |
a121b7c1 | 1533 | int bigend, const char *sym_name) |
c906108c | 1534 | { |
c906108c SS |
1535 | TIR t[1]; |
1536 | struct type *tp = 0; | |
1537 | enum type_code type_code = TYPE_CODE_UNDEF; | |
1538 | ||
025bb325 | 1539 | /* Handle undefined types, they have indexNil. */ |
c906108c | 1540 | if (aux_index == indexNil) |
dd707e8e | 1541 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1542 | |
1543 | /* Handle corrupt aux indices. */ | |
1544 | if (aux_index >= (debug_info->fdr + fd)->caux) | |
1545 | { | |
23136709 | 1546 | index_complaint (sym_name); |
dd707e8e | 1547 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1548 | } |
1549 | ax += aux_index; | |
1550 | ||
1551 | /* Use aux as a type information record, map its basic type. */ | |
1552 | (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t); | |
dd707e8e | 1553 | tp = basic_type (t->bt, mdebugread_objfile); |
0a9d309a | 1554 | if (tp == NULL) |
c906108c | 1555 | { |
025bb325 | 1556 | /* Cannot use builtin types -- build our own. */ |
c906108c SS |
1557 | switch (t->bt) |
1558 | { | |
1559 | case btStruct: | |
1560 | type_code = TYPE_CODE_STRUCT; | |
1561 | break; | |
1562 | case btUnion: | |
1563 | type_code = TYPE_CODE_UNION; | |
1564 | break; | |
1565 | case btEnum: | |
1566 | type_code = TYPE_CODE_ENUM; | |
1567 | break; | |
1568 | case btRange: | |
1569 | type_code = TYPE_CODE_RANGE; | |
1570 | break; | |
1571 | case btSet: | |
1572 | type_code = TYPE_CODE_SET; | |
1573 | break; | |
1574 | case btIndirect: | |
025bb325 | 1575 | /* alpha cc -migrate uses this for typedefs. The true type will |
c906108c SS |
1576 | be obtained by crossreferencing below. */ |
1577 | type_code = TYPE_CODE_ERROR; | |
1578 | break; | |
1579 | case btTypedef: | |
025bb325 | 1580 | /* alpha cc uses this for typedefs. The true type will be |
c906108c SS |
1581 | obtained by crossreferencing below. */ |
1582 | type_code = TYPE_CODE_ERROR; | |
1583 | break; | |
1584 | default: | |
23136709 | 1585 | basic_type_complaint (t->bt, sym_name); |
dd707e8e | 1586 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1587 | } |
1588 | } | |
1589 | ||
025bb325 | 1590 | /* Move on to next aux. */ |
c906108c SS |
1591 | ax++; |
1592 | ||
1593 | if (t->fBitfield) | |
1594 | { | |
1595 | int width = AUX_GET_WIDTH (bigend, ax); | |
b8d56208 | 1596 | |
25caa7a8 | 1597 | /* Inhibit core dumps if TIR is corrupted. */ |
c5aa993b | 1598 | if (bs == (int *) NULL) |
c906108c SS |
1599 | { |
1600 | /* Alpha cc -migrate encodes char and unsigned char types | |
1601 | as short and unsigned short types with a field width of 8. | |
1602 | Enum types also have a field width which we ignore for now. */ | |
1603 | if (t->bt == btShort && width == 8) | |
dd707e8e | 1604 | tp = basic_type (btChar, mdebugread_objfile); |
c906108c | 1605 | else if (t->bt == btUShort && width == 8) |
dd707e8e | 1606 | tp = basic_type (btUChar, mdebugread_objfile); |
c906108c SS |
1607 | else if (t->bt == btEnum) |
1608 | ; | |
1609 | else | |
3e43a32a MS |
1610 | complaint (&symfile_complaints, |
1611 | _("can't handle TIR fBitfield for %s"), | |
23136709 | 1612 | sym_name); |
c906108c SS |
1613 | } |
1614 | else | |
c5aa993b | 1615 | *bs = width; |
c906108c SS |
1616 | ax++; |
1617 | } | |
1618 | ||
1619 | /* A btIndirect entry cross references to an aux entry containing | |
1620 | the type. */ | |
1621 | if (t->bt == btIndirect) | |
1622 | { | |
1623 | RNDXR rn[1]; | |
1624 | int rf; | |
1625 | FDR *xref_fh; | |
1626 | int xref_fd; | |
1627 | ||
1628 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn); | |
1629 | ax++; | |
1630 | if (rn->rfd == 0xfff) | |
1631 | { | |
1632 | rf = AUX_GET_ISYM (bigend, ax); | |
1633 | ax++; | |
1634 | } | |
1635 | else | |
1636 | rf = rn->rfd; | |
1637 | ||
1638 | if (rf == -1) | |
1639 | { | |
23136709 | 1640 | complaint (&symfile_complaints, |
e2e0b3e5 | 1641 | _("unable to cross ref btIndirect for %s"), sym_name); |
dd707e8e | 1642 | return basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1643 | } |
1644 | xref_fh = get_rfd (fd, rf); | |
1645 | xref_fd = xref_fh - debug_info->fdr; | |
1646 | tp = parse_type (xref_fd, debug_info->external_aux + xref_fh->iauxBase, | |
c5aa993b | 1647 | rn->index, (int *) NULL, xref_fh->fBigendian, sym_name); |
c906108c SS |
1648 | } |
1649 | ||
1650 | /* All these types really point to some (common) MIPS type | |
1651 | definition, and only the type-qualifiers fully identify | |
025bb325 | 1652 | them. We'll make the same effort at sharing. */ |
c906108c SS |
1653 | if (t->bt == btStruct || |
1654 | t->bt == btUnion || | |
1655 | t->bt == btEnum || | |
1656 | ||
c5aa993b JM |
1657 | /* btSet (I think) implies that the name is a tag name, not a typedef |
1658 | name. This apparently is a MIPS extension for C sets. */ | |
c906108c SS |
1659 | t->bt == btSet) |
1660 | { | |
a121b7c1 | 1661 | const char *name; |
c906108c SS |
1662 | |
1663 | /* Try to cross reference this type, build new type on failure. */ | |
1664 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1665 | if (tp == (struct type *) NULL) | |
19f392bc | 1666 | tp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
1667 | |
1668 | /* DEC c89 produces cross references to qualified aggregate types, | |
c5aa993b | 1669 | dereference them. */ |
c906108c SS |
1670 | while (TYPE_CODE (tp) == TYPE_CODE_PTR |
1671 | || TYPE_CODE (tp) == TYPE_CODE_ARRAY) | |
0004e5a2 | 1672 | tp = TYPE_TARGET_TYPE (tp); |
c906108c SS |
1673 | |
1674 | /* Make sure that TYPE_CODE(tp) has an expected type code. | |
c5aa993b JM |
1675 | Any type may be returned from cross_ref if file indirect entries |
1676 | are corrupted. */ | |
c906108c SS |
1677 | if (TYPE_CODE (tp) != TYPE_CODE_STRUCT |
1678 | && TYPE_CODE (tp) != TYPE_CODE_UNION | |
1679 | && TYPE_CODE (tp) != TYPE_CODE_ENUM) | |
1680 | { | |
23136709 | 1681 | unexpected_type_code_complaint (sym_name); |
c906108c SS |
1682 | } |
1683 | else | |
1684 | { | |
c906108c SS |
1685 | /* Usually, TYPE_CODE(tp) is already type_code. The main |
1686 | exception is if we guessed wrong re struct/union/enum. | |
1687 | But for struct vs. union a wrong guess is harmless, so | |
1688 | don't complain(). */ | |
1689 | if ((TYPE_CODE (tp) == TYPE_CODE_ENUM | |
1690 | && type_code != TYPE_CODE_ENUM) | |
1691 | || (TYPE_CODE (tp) != TYPE_CODE_ENUM | |
1692 | && type_code == TYPE_CODE_ENUM)) | |
1693 | { | |
23136709 | 1694 | bad_tag_guess_complaint (sym_name); |
c906108c SS |
1695 | } |
1696 | ||
1697 | if (TYPE_CODE (tp) != type_code) | |
1698 | { | |
1699 | TYPE_CODE (tp) = type_code; | |
1700 | } | |
1701 | ||
1702 | /* Do not set the tag name if it is a compiler generated tag name | |
c5aa993b | 1703 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */ |
c906108c SS |
1704 | if (name[0] == '.' || name[0] == '\0') |
1705 | TYPE_TAG_NAME (tp) = NULL; | |
1706 | else if (TYPE_TAG_NAME (tp) == NULL | |
6314a349 | 1707 | || strcmp (TYPE_TAG_NAME (tp), name) != 0) |
3e43a32a | 1708 | TYPE_TAG_NAME (tp) |
224c3ddb SM |
1709 | = ((const char *) |
1710 | obstack_copy0 (&mdebugread_objfile->objfile_obstack, | |
1711 | name, strlen (name))); | |
c906108c SS |
1712 | } |
1713 | } | |
1714 | ||
1715 | /* All these types really point to some (common) MIPS type | |
1716 | definition, and only the type-qualifiers fully identify | |
1717 | them. We'll make the same effort at sharing. | |
1718 | FIXME: We are not doing any guessing on range types. */ | |
1719 | if (t->bt == btRange) | |
1720 | { | |
a121b7c1 | 1721 | const char *name; |
c906108c SS |
1722 | |
1723 | /* Try to cross reference this type, build new type on failure. */ | |
1724 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1725 | if (tp == (struct type *) NULL) | |
19f392bc | 1726 | tp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
1727 | |
1728 | /* Make sure that TYPE_CODE(tp) has an expected type code. | |
c5aa993b JM |
1729 | Any type may be returned from cross_ref if file indirect entries |
1730 | are corrupted. */ | |
c906108c SS |
1731 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) |
1732 | { | |
23136709 | 1733 | unexpected_type_code_complaint (sym_name); |
c906108c SS |
1734 | } |
1735 | else | |
1736 | { | |
1737 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
025bb325 | 1738 | exception is if we guessed wrong re struct/union/enum. */ |
c906108c SS |
1739 | if (TYPE_CODE (tp) != type_code) |
1740 | { | |
23136709 | 1741 | bad_tag_guess_complaint (sym_name); |
c906108c SS |
1742 | TYPE_CODE (tp) = type_code; |
1743 | } | |
ee300cd4 AC |
1744 | if (TYPE_NAME (tp) == NULL |
1745 | || strcmp (TYPE_NAME (tp), name) != 0) | |
10f0c4bb | 1746 | TYPE_NAME (tp) |
224c3ddb SM |
1747 | = ((const char *) |
1748 | obstack_copy0 (&mdebugread_objfile->objfile_obstack, | |
1749 | name, strlen (name))); | |
c906108c SS |
1750 | } |
1751 | } | |
1752 | if (t->bt == btTypedef) | |
1753 | { | |
a121b7c1 | 1754 | const char *name; |
c906108c SS |
1755 | |
1756 | /* Try to cross reference this type, it should succeed. */ | |
1757 | ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name); | |
1758 | if (tp == (struct type *) NULL) | |
1759 | { | |
23136709 | 1760 | complaint (&symfile_complaints, |
e2e0b3e5 | 1761 | _("unable to cross ref btTypedef for %s"), sym_name); |
dd707e8e | 1762 | tp = basic_type (btInt, mdebugread_objfile); |
c906108c SS |
1763 | } |
1764 | } | |
1765 | ||
025bb325 | 1766 | /* Deal with range types. */ |
c906108c SS |
1767 | if (t->bt == btRange) |
1768 | { | |
43bbcdc2 PH |
1769 | TYPE_NFIELDS (tp) = 0; |
1770 | TYPE_RANGE_DATA (tp) = ((struct range_bounds *) | |
1771 | TYPE_ZALLOC (tp, sizeof (struct range_bounds))); | |
262452ec | 1772 | TYPE_LOW_BOUND (tp) = AUX_GET_DNLOW (bigend, ax); |
c906108c | 1773 | ax++; |
262452ec | 1774 | TYPE_HIGH_BOUND (tp) = AUX_GET_DNHIGH (bigend, ax); |
c906108c SS |
1775 | ax++; |
1776 | } | |
1777 | ||
025bb325 MS |
1778 | /* Parse all the type qualifiers now. If there are more |
1779 | than 6 the game will continue in the next aux. */ | |
c906108c SS |
1780 | |
1781 | while (1) | |
1782 | { | |
1783 | #define PARSE_TQ(tq) \ | |
1784 | if (t->tq != tqNil) \ | |
1785 | ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \ | |
1786 | else \ | |
1787 | break; | |
1788 | ||
1789 | PARSE_TQ (tq0); | |
1790 | PARSE_TQ (tq1); | |
1791 | PARSE_TQ (tq2); | |
1792 | PARSE_TQ (tq3); | |
1793 | PARSE_TQ (tq4); | |
1794 | PARSE_TQ (tq5); | |
1795 | #undef PARSE_TQ | |
1796 | ||
1797 | /* mips cc 2.x and gcc never put out continued aux entries. */ | |
1798 | if (!t->continued) | |
1799 | break; | |
1800 | ||
1801 | (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t); | |
1802 | ax++; | |
1803 | } | |
1804 | ||
1805 | /* Complain for illegal continuations due to corrupt aux entries. */ | |
1806 | if (t->continued) | |
3e43a32a MS |
1807 | complaint (&symfile_complaints, |
1808 | _("illegal TIR continued for %s"), sym_name); | |
c5aa993b | 1809 | |
c906108c SS |
1810 | return tp; |
1811 | } | |
1812 | ||
1813 | /* Make up a complex type from a basic one. Type is passed by | |
025bb325 | 1814 | reference in TPP and side-effected as necessary. The type |
c906108c SS |
1815 | qualifier TQ says how to handle the aux symbols at AX for |
1816 | the symbol SX we are currently analyzing. BIGEND says whether | |
1817 | aux symbols are big-endian or little-endian. | |
025bb325 | 1818 | Returns the number of aux symbols we parsed. */ |
c906108c SS |
1819 | |
1820 | static int | |
fba45db2 | 1821 | upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend, |
a121b7c1 | 1822 | const char *sym_name) |
c906108c SS |
1823 | { |
1824 | int off; | |
1825 | struct type *t; | |
1826 | ||
025bb325 | 1827 | /* Used in array processing. */ |
c906108c SS |
1828 | int rf, id; |
1829 | FDR *fh; | |
1830 | struct type *range; | |
1831 | struct type *indx; | |
1832 | int lower, upper; | |
1833 | RNDXR rndx; | |
1834 | ||
1835 | switch (tq) | |
1836 | { | |
1837 | case tqPtr: | |
1838 | t = lookup_pointer_type (*tpp); | |
1839 | *tpp = t; | |
1840 | return 0; | |
1841 | ||
1842 | case tqProc: | |
1843 | t = lookup_function_type (*tpp); | |
1844 | *tpp = t; | |
1845 | return 0; | |
1846 | ||
1847 | case tqArray: | |
1848 | off = 0; | |
1849 | ||
025bb325 | 1850 | /* Determine and record the domain type (type of index). */ |
c906108c SS |
1851 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx); |
1852 | id = rndx.index; | |
1853 | rf = rndx.rfd; | |
1854 | if (rf == 0xfff) | |
1855 | { | |
1856 | ax++; | |
1857 | rf = AUX_GET_ISYM (bigend, ax); | |
1858 | off++; | |
1859 | } | |
1860 | fh = get_rfd (fd, rf); | |
1861 | ||
1862 | indx = parse_type (fh - debug_info->fdr, | |
1863 | debug_info->external_aux + fh->iauxBase, | |
1864 | id, (int *) NULL, bigend, sym_name); | |
1865 | ||
1866 | /* The bounds type should be an integer type, but might be anything | |
c5aa993b | 1867 | else due to corrupt aux entries. */ |
c906108c SS |
1868 | if (TYPE_CODE (indx) != TYPE_CODE_INT) |
1869 | { | |
23136709 | 1870 | complaint (&symfile_complaints, |
3e43a32a MS |
1871 | _("illegal array index type for %s, assuming int"), |
1872 | sym_name); | |
dd707e8e | 1873 | indx = objfile_type (mdebugread_objfile)->builtin_int; |
c906108c SS |
1874 | } |
1875 | ||
1876 | /* Get the bounds, and create the array type. */ | |
1877 | ax++; | |
1878 | lower = AUX_GET_DNLOW (bigend, ax); | |
1879 | ax++; | |
1880 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1881 | ax++; | |
1882 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1883 | ||
0c9c3474 SA |
1884 | range = create_static_range_type ((struct type *) NULL, indx, |
1885 | lower, upper); | |
c906108c SS |
1886 | |
1887 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1888 | ||
1889 | /* We used to fill in the supplied array element bitsize | |
c5aa993b JM |
1890 | here if the TYPE_LENGTH of the target type was zero. |
1891 | This happens for a `pointer to an array of anonymous structs', | |
1892 | but in this case the array element bitsize is also zero, | |
1893 | so nothing is gained. | |
1894 | And we used to check the TYPE_LENGTH of the target type against | |
1895 | the supplied array element bitsize. | |
1896 | gcc causes a mismatch for `pointer to array of object', | |
1897 | since the sdb directives it uses do not have a way of | |
1898 | specifying the bitsize, but it does no harm (the | |
1899 | TYPE_LENGTH should be correct) and we should be able to | |
1900 | ignore the erroneous bitsize from the auxiliary entry safely. | |
1901 | dbx seems to ignore it too. */ | |
c906108c | 1902 | |
d6a843b5 | 1903 | /* TYPE_TARGET_STUB now takes care of the zero TYPE_LENGTH problem. */ |
c906108c | 1904 | if (TYPE_LENGTH (*tpp) == 0) |
d6a843b5 | 1905 | TYPE_TARGET_STUB (t) = 1; |
c906108c SS |
1906 | |
1907 | *tpp = t; | |
1908 | return 4 + off; | |
1909 | ||
1910 | case tqVol: | |
1911 | /* Volatile -- currently ignored */ | |
1912 | return 0; | |
1913 | ||
1914 | case tqConst: | |
1915 | /* Const -- currently ignored */ | |
1916 | return 0; | |
1917 | ||
1918 | default: | |
e2e0b3e5 | 1919 | complaint (&symfile_complaints, _("unknown type qualifier 0x%x"), tq); |
c906108c SS |
1920 | return 0; |
1921 | } | |
1922 | } | |
1923 | ||
1924 | ||
1925 | /* Parse a procedure descriptor record PR. Note that the procedure is | |
1926 | parsed _after_ the local symbols, now we just insert the extra | |
f92761ec | 1927 | information we need into a MDEBUG_EFI_SYMBOL_NAME symbol that has |
c906108c SS |
1928 | already been placed in the procedure's main block. Note also that |
1929 | images that have been partially stripped (ld -x) have been deprived | |
1930 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1931 | the offset of the first procedure for this FDR; we adjust the | |
1932 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab | |
f92761ec | 1933 | to look for the function which contains the MDEBUG_EFI_SYMBOL_NAME symbol |
c906108c SS |
1934 | in question, or NULL to use top_stack->cur_block. */ |
1935 | ||
c906108c | 1936 | static void |
43f3e411 | 1937 | parse_procedure (PDR *pr, struct compunit_symtab *search_symtab, |
fba45db2 | 1938 | struct partial_symtab *pst) |
c906108c SS |
1939 | { |
1940 | struct symbol *s, *i; | |
3977b71f | 1941 | const struct block *b; |
c906108c SS |
1942 | char *sh_name; |
1943 | ||
025bb325 | 1944 | /* Simple rule to find files linked "-x". */ |
c906108c SS |
1945 | if (cur_fdr->rss == -1) |
1946 | { | |
1947 | if (pr->isym == -1) | |
1948 | { | |
025bb325 | 1949 | /* Static procedure at address pr->adr. Sigh. */ |
c906108c | 1950 | /* FIXME-32x64. assuming pr->adr fits in long. */ |
23136709 | 1951 | complaint (&symfile_complaints, |
e2e0b3e5 | 1952 | _("can't handle PDR for static proc at 0x%lx"), |
23136709 | 1953 | (unsigned long) pr->adr); |
c906108c SS |
1954 | return; |
1955 | } | |
1956 | else | |
1957 | { | |
1958 | /* external */ | |
1959 | EXTR she; | |
c5aa993b | 1960 | |
c906108c SS |
1961 | (*debug_swap->swap_ext_in) (cur_bfd, |
1962 | ((char *) debug_info->external_ext | |
1963 | + (pr->isym | |
1964 | * debug_swap->external_ext_size)), | |
1965 | &she); | |
1966 | sh_name = debug_info->ssext + she.asym.iss; | |
1967 | } | |
1968 | } | |
1969 | else | |
1970 | { | |
1971 | /* Full symbols */ | |
1972 | SYMR sh; | |
1973 | ||
1974 | (*debug_swap->swap_sym_in) (cur_bfd, | |
1975 | ((char *) debug_info->external_sym | |
1976 | + ((cur_fdr->isymBase + pr->isym) | |
1977 | * debug_swap->external_sym_size)), | |
1978 | &sh); | |
1979 | sh_name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
1980 | } | |
1981 | ||
1982 | if (search_symtab != NULL) | |
1983 | { | |
1984 | #if 0 | |
1985 | /* This loses both in the case mentioned (want a static, find a global), | |
c5aa993b JM |
1986 | but also if we are looking up a non-mangled name which happens to |
1987 | match the name of a mangled function. */ | |
c906108c | 1988 | /* We have to save the cur_fdr across the call to lookup_symbol. |
c5aa993b JM |
1989 | If the pdr is for a static function and if a global function with |
1990 | the same name exists, lookup_symbol will eventually read in the symtab | |
1991 | for the global function and clobber cur_fdr. */ | |
c906108c | 1992 | FDR *save_cur_fdr = cur_fdr; |
b8d56208 | 1993 | |
2570f2b7 | 1994 | s = lookup_symbol (sh_name, NULL, VAR_DOMAIN, 0); |
c906108c SS |
1995 | cur_fdr = save_cur_fdr; |
1996 | #else | |
1997 | s = mylookup_symbol | |
1998 | (sh_name, | |
43f3e411 DE |
1999 | BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (search_symtab), |
2000 | STATIC_BLOCK), | |
176620f1 | 2001 | VAR_DOMAIN, |
c906108c SS |
2002 | LOC_BLOCK); |
2003 | #endif | |
2004 | } | |
2005 | else | |
2006 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
176620f1 | 2007 | VAR_DOMAIN, LOC_BLOCK); |
c906108c SS |
2008 | |
2009 | if (s != 0) | |
2010 | { | |
2011 | b = SYMBOL_BLOCK_VALUE (s); | |
2012 | } | |
2013 | else | |
2014 | { | |
e2e0b3e5 | 2015 | complaint (&symfile_complaints, _("PDR for %s, but no symbol"), sh_name); |
c906108c SS |
2016 | #if 1 |
2017 | return; | |
2018 | #else | |
2019 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ | |
2020 | s = new_symbol (sh_name); | |
176620f1 | 2021 | SYMBOL_DOMAIN (s) = VAR_DOMAIN; |
c906108c | 2022 | SYMBOL_CLASS (s) = LOC_BLOCK; |
025bb325 | 2023 | /* Donno its type, hope int is ok. */ |
0a9d309a | 2024 | SYMBOL_TYPE (s) |
46bf5051 | 2025 | = lookup_function_type (objfile_type (pst->objfile)->builtin_int); |
c7efd0b9 | 2026 | add_symbol (s, top_stack->cur_st, top_stack->cur_block); |
025bb325 | 2027 | /* Won't have symbols for this one. */ |
c906108c SS |
2028 | b = new_block (2); |
2029 | SYMBOL_BLOCK_VALUE (s) = b; | |
2030 | BLOCK_FUNCTION (b) = s; | |
2031 | BLOCK_START (b) = pr->adr; | |
2032 | /* BOUND used to be the end of procedure's text, but the | |
c5aa993b | 2033 | argument is no longer passed in. */ |
c906108c SS |
2034 | BLOCK_END (b) = bound; |
2035 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
2036 | add_block (b, top_stack->cur_st); | |
2037 | #endif | |
2038 | } | |
2039 | ||
f92761ec | 2040 | i = mylookup_symbol (MDEBUG_EFI_SYMBOL_NAME, b, LABEL_DOMAIN, LOC_CONST); |
c906108c SS |
2041 | |
2042 | if (i) | |
2043 | { | |
9918cab9 JB |
2044 | struct mdebug_extra_func_info *e; |
2045 | ||
2046 | e = (struct mdebug_extra_func_info *) SYMBOL_VALUE_BYTES (i); | |
c906108c | 2047 | e->pdr = *pr; |
c906108c SS |
2048 | |
2049 | /* GDB expects the absolute function start address for the | |
c5aa993b JM |
2050 | procedure descriptor in e->pdr.adr. |
2051 | As the address in the procedure descriptor is usually relative, | |
2052 | we would have to relocate e->pdr.adr with cur_fdr->adr and | |
b8fbeb18 | 2053 | ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)). |
c5aa993b JM |
2054 | Unfortunately cur_fdr->adr and e->pdr.adr are both absolute |
2055 | in shared libraries on some systems, and on other systems | |
2056 | e->pdr.adr is sometimes offset by a bogus value. | |
2057 | To work around these problems, we replace e->pdr.adr with | |
2058 | the start address of the function. */ | |
c906108c | 2059 | e->pdr.adr = BLOCK_START (b); |
c906108c SS |
2060 | } |
2061 | ||
2062 | /* It would be reasonable that functions that have been compiled | |
2063 | without debugging info have a btNil type for their return value, | |
2064 | and functions that are void and are compiled with debugging info | |
2065 | have btVoid. | |
2066 | gcc and DEC f77 put out btNil types for both cases, so btNil is mapped | |
2067 | to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info' | |
2068 | case right. | |
2069 | The glevel field in cur_fdr could be used to determine the presence | |
2070 | of debugging info, but GCC doesn't always pass the -g switch settings | |
2071 | to the assembler and GAS doesn't set the glevel field from the -g switch | |
2072 | settings. | |
2073 | To work around these problems, the return value type of a TYPE_CODE_VOID | |
2074 | function is adjusted accordingly if no debugging info was found in the | |
2075 | compilation unit. */ | |
c5aa993b | 2076 | |
c906108c SS |
2077 | if (processing_gcc_compilation == 0 |
2078 | && found_ecoff_debugging_info == 0 | |
2079 | && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID) | |
5c80ed9d | 2080 | SYMBOL_TYPE (s) = objfile_type (mdebugread_objfile)->nodebug_text_symbol; |
c906108c SS |
2081 | } |
2082 | ||
025bb325 | 2083 | /* Parse the external symbol ES. Just call parse_symbol() after |
c906108c SS |
2084 | making sure we know where the aux are for it. |
2085 | BIGEND says whether aux entries are big-endian or little-endian. | |
2086 | ||
025bb325 | 2087 | This routine clobbers top_stack->cur_block and ->cur_st. */ |
c906108c | 2088 | |
a14ed312 KB |
2089 | static void parse_external (EXTR *, int, struct section_offsets *, |
2090 | struct objfile *); | |
c906108c SS |
2091 | |
2092 | static void | |
fba45db2 KB |
2093 | parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets, |
2094 | struct objfile *objfile) | |
c906108c SS |
2095 | { |
2096 | union aux_ext *ax; | |
2097 | ||
2098 | if (es->ifd != ifdNil) | |
2099 | { | |
2100 | cur_fd = es->ifd; | |
2101 | cur_fdr = debug_info->fdr + cur_fd; | |
2102 | ax = debug_info->external_aux + cur_fdr->iauxBase; | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | cur_fdr = debug_info->fdr; | |
2107 | ax = 0; | |
2108 | } | |
2109 | ||
2110 | /* Reading .o files */ | |
c5aa993b | 2111 | if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil) |
c906108c | 2112 | { |
a121b7c1 | 2113 | const char *what; |
c906108c SS |
2114 | switch (es->asym.st) |
2115 | { | |
2116 | case stNil: | |
2117 | /* These are generated for static symbols in .o files, | |
2118 | ignore them. */ | |
2119 | return; | |
2120 | case stStaticProc: | |
2121 | case stProc: | |
2122 | what = "procedure"; | |
2123 | n_undef_procs++; | |
2124 | break; | |
2125 | case stGlobal: | |
2126 | what = "variable"; | |
2127 | n_undef_vars++; | |
2128 | break; | |
2129 | case stLabel: | |
2130 | what = "label"; | |
2131 | n_undef_labels++; | |
2132 | break; | |
2133 | default: | |
2134 | what = "symbol"; | |
2135 | break; | |
2136 | } | |
2137 | n_undef_symbols++; | |
025bb325 | 2138 | /* FIXME: Turn this into a complaint? */ |
c906108c | 2139 | if (info_verbose) |
a3f17187 | 2140 | printf_filtered (_("Warning: %s `%s' is undefined (in %s)\n"), |
c906108c SS |
2141 | what, debug_info->ssext + es->asym.iss, |
2142 | fdr_name (cur_fdr)); | |
2143 | return; | |
2144 | } | |
2145 | ||
2146 | switch (es->asym.st) | |
2147 | { | |
2148 | case stProc: | |
2149 | case stStaticProc: | |
2150 | /* There is no need to parse the external procedure symbols. | |
c5aa993b JM |
2151 | If they are from objects compiled without -g, their index will |
2152 | be indexNil, and the symbol definition from the minimal symbol | |
2153 | is preferrable (yielding a function returning int instead of int). | |
2154 | If the index points to a local procedure symbol, the local | |
2155 | symbol already provides the correct type. | |
2156 | Note that the index of the external procedure symbol points | |
2157 | to the local procedure symbol in the local symbol table, and | |
2158 | _not_ to the auxiliary symbol info. */ | |
c906108c SS |
2159 | break; |
2160 | case stGlobal: | |
2161 | case stLabel: | |
2162 | /* Global common symbols are resolved by the runtime loader, | |
c5aa993b JM |
2163 | ignore them. */ |
2164 | if (SC_IS_COMMON (es->asym.sc)) | |
c906108c SS |
2165 | break; |
2166 | ||
2167 | /* Note that the case of a symbol with indexNil must be handled | |
c5aa993b | 2168 | anyways by parse_symbol(). */ |
3e43a32a MS |
2169 | parse_symbol (&es->asym, ax, (char *) NULL, |
2170 | bigend, section_offsets, objfile); | |
c906108c SS |
2171 | break; |
2172 | default: | |
2173 | break; | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | /* Parse the line number info for file descriptor FH into | |
2178 | GDB's linetable LT. MIPS' encoding requires a little bit | |
2179 | of magic to get things out. Note also that MIPS' line | |
2180 | numbers can go back and forth, apparently we can live | |
025bb325 | 2181 | with that and do not need to reorder our linetables. */ |
c906108c | 2182 | |
a14ed312 KB |
2183 | static void parse_lines (FDR *, PDR *, struct linetable *, int, |
2184 | struct partial_symtab *, CORE_ADDR); | |
c906108c SS |
2185 | |
2186 | static void | |
fba45db2 KB |
2187 | parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines, |
2188 | struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr) | |
c906108c SS |
2189 | { |
2190 | unsigned char *base; | |
2191 | int j, k; | |
2192 | int delta, count, lineno = 0; | |
2193 | ||
2194 | if (fh->cbLine == 0) | |
2195 | return; | |
2196 | ||
025bb325 | 2197 | /* Scan by procedure descriptors. */ |
c906108c SS |
2198 | k = 0; |
2199 | for (j = 0; j < fh->cpd; j++, pr++) | |
2200 | { | |
2201 | CORE_ADDR l; | |
2202 | CORE_ADDR adr; | |
2203 | unsigned char *halt; | |
2204 | ||
025bb325 | 2205 | /* No code for this one. */ |
c906108c SS |
2206 | if (pr->iline == ilineNil || |
2207 | pr->lnLow == -1 || pr->lnHigh == -1) | |
2208 | continue; | |
2209 | ||
2210 | /* Determine start and end address of compressed line bytes for | |
c5aa993b | 2211 | this procedure. */ |
c906108c SS |
2212 | base = debug_info->line + fh->cbLineOffset; |
2213 | if (j != (fh->cpd - 1)) | |
c5aa993b | 2214 | halt = base + pr[1].cbLineOffset; |
c906108c | 2215 | else |
c5aa993b | 2216 | halt = base + fh->cbLine; |
c906108c SS |
2217 | base += pr->cbLineOffset; |
2218 | ||
5afc051b | 2219 | adr = pst->textlow + pr->adr - lowest_pdr_addr; |
c906108c SS |
2220 | |
2221 | l = adr >> 2; /* in words */ | |
c5aa993b | 2222 | for (lineno = pr->lnLow; base < halt;) |
c906108c SS |
2223 | { |
2224 | count = *base & 0x0f; | |
2225 | delta = *base++ >> 4; | |
2226 | if (delta >= 8) | |
2227 | delta -= 16; | |
2228 | if (delta == -8) | |
2229 | { | |
2230 | delta = (base[0] << 8) | base[1]; | |
2231 | if (delta >= 0x8000) | |
2232 | delta -= 0x10000; | |
2233 | base += 2; | |
2234 | } | |
2235 | lineno += delta; /* first delta is 0 */ | |
2236 | ||
025bb325 | 2237 | /* Complain if the line table overflows. Could happen |
c906108c SS |
2238 | with corrupt binaries. */ |
2239 | if (lt->nitems >= maxlines) | |
2240 | { | |
23136709 | 2241 | complaint (&symfile_complaints, |
e2e0b3e5 | 2242 | _("guessed size of linetable for %s incorrectly"), |
23136709 | 2243 | fdr_name (fh)); |
c906108c SS |
2244 | break; |
2245 | } | |
2246 | k = add_line (lt, lineno, l, k); | |
2247 | l += count + 1; | |
2248 | } | |
2249 | } | |
2250 | } | |
2251 | \f | |
23136709 KB |
2252 | static void |
2253 | function_outside_compilation_unit_complaint (const char *arg1) | |
2254 | { | |
2255 | complaint (&symfile_complaints, | |
3e43a32a MS |
2256 | _("function `%s' appears to be defined " |
2257 | "outside of all compilation units"), | |
23136709 KB |
2258 | arg1); |
2259 | } | |
2260 | ||
1f9872de JB |
2261 | /* Use the STORAGE_CLASS to compute which section the given symbol |
2262 | belongs to, and then records this new minimal symbol. */ | |
2263 | ||
2264 | static void | |
8dddcb8f TT |
2265 | record_minimal_symbol (minimal_symbol_reader &reader, |
2266 | const char *name, const CORE_ADDR address, | |
1f9872de JB |
2267 | enum minimal_symbol_type ms_type, int storage_class, |
2268 | struct objfile *objfile) | |
2269 | { | |
2270 | int section; | |
1f9872de JB |
2271 | |
2272 | switch (storage_class) | |
2273 | { | |
2274 | case scText: | |
2275 | section = SECT_OFF_TEXT (objfile); | |
1f9872de JB |
2276 | break; |
2277 | case scData: | |
2278 | section = SECT_OFF_DATA (objfile); | |
1f9872de JB |
2279 | break; |
2280 | case scBss: | |
2281 | section = SECT_OFF_BSS (objfile); | |
1f9872de JB |
2282 | break; |
2283 | case scSData: | |
2284 | section = get_section_index (objfile, ".sdata"); | |
1f9872de JB |
2285 | break; |
2286 | case scSBss: | |
2287 | section = get_section_index (objfile, ".sbss"); | |
1f9872de JB |
2288 | break; |
2289 | case scRData: | |
2290 | section = get_section_index (objfile, ".rdata"); | |
1f9872de JB |
2291 | break; |
2292 | case scInit: | |
2293 | section = get_section_index (objfile, ".init"); | |
1f9872de JB |
2294 | break; |
2295 | case scXData: | |
2296 | section = get_section_index (objfile, ".xdata"); | |
1f9872de JB |
2297 | break; |
2298 | case scPData: | |
2299 | section = get_section_index (objfile, ".pdata"); | |
1f9872de JB |
2300 | break; |
2301 | case scFini: | |
2302 | section = get_section_index (objfile, ".fini"); | |
1f9872de JB |
2303 | break; |
2304 | case scRConst: | |
2305 | section = get_section_index (objfile, ".rconst"); | |
1f9872de JB |
2306 | break; |
2307 | #ifdef scTlsData | |
2308 | case scTlsData: | |
2309 | section = get_section_index (objfile, ".tlsdata"); | |
1f9872de JB |
2310 | break; |
2311 | #endif | |
2312 | #ifdef scTlsBss | |
2313 | case scTlsBss: | |
2314 | section = get_section_index (objfile, ".tlsbss"); | |
1f9872de JB |
2315 | break; |
2316 | #endif | |
2317 | default: | |
2318 | /* This kind of symbol is not associated to a section. */ | |
2319 | section = -1; | |
1f9872de JB |
2320 | } |
2321 | ||
8dddcb8f | 2322 | reader.record_with_info (name, address, ms_type, section); |
1f9872de JB |
2323 | } |
2324 | ||
c906108c SS |
2325 | /* Master parsing procedure for first-pass reading of file symbols |
2326 | into a partial_symtab. */ | |
2327 | ||
2328 | static void | |
8dddcb8f TT |
2329 | parse_partial_symbols (minimal_symbol_reader &reader, |
2330 | struct objfile *objfile) | |
c906108c | 2331 | { |
5e2b427d | 2332 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
2333 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; |
2334 | const bfd_size_type external_rfd_size = debug_swap->external_rfd_size; | |
2335 | const bfd_size_type external_ext_size = debug_swap->external_ext_size; | |
12b9c64f AO |
2336 | void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in; |
2337 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; | |
2338 | void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in; | |
c906108c SS |
2339 | int f_idx, s_idx; |
2340 | HDRR *hdr = &debug_info->symbolic_header; | |
2341 | /* Running pointers */ | |
2342 | FDR *fh; | |
2343 | char *ext_out; | |
2344 | char *ext_out_end; | |
2345 | EXTR *ext_block; | |
52f0bd74 | 2346 | EXTR *ext_in; |
c906108c SS |
2347 | EXTR *ext_in_end; |
2348 | SYMR sh; | |
2349 | struct partial_symtab *pst; | |
2350 | int textlow_not_set = 1; | |
c906108c | 2351 | |
025bb325 | 2352 | /* List of current psymtab's include files. */ |
0d5cff50 | 2353 | const char **psymtab_include_list; |
c906108c SS |
2354 | int includes_allocated; |
2355 | int includes_used; | |
2356 | EXTR *extern_tab; | |
2357 | struct pst_map *fdr_to_pst; | |
025bb325 | 2358 | /* Index within current psymtab dependency list. */ |
c906108c SS |
2359 | struct partial_symtab **dependency_list; |
2360 | int dependencies_used, dependencies_allocated; | |
2361 | struct cleanup *old_chain; | |
2362 | char *name; | |
2363 | enum language prev_language; | |
2364 | asection *text_sect; | |
2365 | int relocatable = 0; | |
2366 | ||
2367 | /* Irix 5.2 shared libraries have a fh->adr field of zero, but | |
2368 | the shared libraries are prelinked at a high memory address. | |
2369 | We have to adjust the start address of the object file for this case, | |
2370 | by setting it to the start address of the first procedure in the file. | |
2371 | But we should do no adjustments if we are debugging a .o file, where | |
2372 | the text section (and fh->adr) really starts at zero. */ | |
2373 | text_sect = bfd_get_section_by_name (cur_bfd, ".text"); | |
2374 | if (text_sect != NULL | |
2375 | && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC)) | |
2376 | relocatable = 1; | |
2377 | ||
8b92e4d5 | 2378 | extern_tab = (EXTR *) obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
2379 | sizeof (EXTR) * hdr->iextMax); |
2380 | ||
2381 | includes_allocated = 30; | |
2382 | includes_used = 0; | |
0d5cff50 DE |
2383 | psymtab_include_list = (const char **) alloca (includes_allocated * |
2384 | sizeof (const char *)); | |
c906108c SS |
2385 | next_symbol_text_func = mdebug_next_symbol_text; |
2386 | ||
2387 | dependencies_allocated = 30; | |
2388 | dependencies_used = 0; | |
2389 | dependency_list = | |
2390 | (struct partial_symtab **) alloca (dependencies_allocated * | |
2391 | sizeof (struct partial_symtab *)); | |
2392 | ||
46212e0b | 2393 | set_last_source_file (NULL); |
c906108c SS |
2394 | |
2395 | /* | |
2396 | * Big plan: | |
2397 | * | |
2398 | * Only parse the Local and External symbols, and the Relative FDR. | |
2399 | * Fixup enough of the loader symtab to be able to use it. | |
2400 | * Allocate space only for the file's portions we need to | |
025bb325 | 2401 | * look at. (XXX) |
c906108c SS |
2402 | */ |
2403 | ||
2404 | max_gdbinfo = 0; | |
2405 | max_glevel = MIN_GLEVEL; | |
2406 | ||
2407 | /* Allocate the map FDR -> PST. | |
2408 | Minor hack: -O3 images might claim some global data belongs | |
025bb325 | 2409 | to FDR -1. We`ll go along with that. */ |
8d749320 | 2410 | fdr_to_pst = XCNEWVEC (struct pst_map, hdr->ifdMax + 1); |
b8c9b27d | 2411 | old_chain = make_cleanup (xfree, fdr_to_pst); |
c906108c SS |
2412 | fdr_to_pst++; |
2413 | { | |
d4f3574e | 2414 | struct partial_symtab *pst = new_psymtab ("", objfile); |
b8d56208 | 2415 | |
c906108c SS |
2416 | fdr_to_pst[-1].pst = pst; |
2417 | FDR_IDX (pst) = -1; | |
2418 | } | |
2419 | ||
2420 | /* Allocate the global pending list. */ | |
2421 | pending_list = | |
2422 | ((struct mdebug_pending **) | |
8b92e4d5 | 2423 | obstack_alloc (&objfile->objfile_obstack, |
c906108c | 2424 | hdr->ifdMax * sizeof (struct mdebug_pending *))); |
12b9c64f | 2425 | memset (pending_list, 0, |
c906108c SS |
2426 | hdr->ifdMax * sizeof (struct mdebug_pending *)); |
2427 | ||
2428 | /* Pass 0 over external syms: swap them in. */ | |
8d749320 | 2429 | ext_block = XNEWVEC (EXTR, hdr->iextMax); |
b8c9b27d | 2430 | make_cleanup (xfree, ext_block); |
c906108c SS |
2431 | |
2432 | ext_out = (char *) debug_info->external_ext; | |
2433 | ext_out_end = ext_out + hdr->iextMax * external_ext_size; | |
2434 | ext_in = ext_block; | |
2435 | for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++) | |
2436 | (*swap_ext_in) (cur_bfd, ext_out, ext_in); | |
2437 | ||
025bb325 | 2438 | /* Pass 1 over external syms: Presize and partition the list. */ |
c906108c SS |
2439 | ext_in = ext_block; |
2440 | ext_in_end = ext_in + hdr->iextMax; | |
2441 | for (; ext_in < ext_in_end; ext_in++) | |
2442 | { | |
2443 | /* See calls to complain below. */ | |
2444 | if (ext_in->ifd >= -1 | |
2445 | && ext_in->ifd < hdr->ifdMax | |
2446 | && ext_in->asym.iss >= 0 | |
2447 | && ext_in->asym.iss < hdr->issExtMax) | |
2448 | fdr_to_pst[ext_in->ifd].n_globals++; | |
2449 | } | |
2450 | ||
025bb325 | 2451 | /* Pass 1.5 over files: partition out global symbol space. */ |
c906108c SS |
2452 | s_idx = 0; |
2453 | for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) | |
2454 | { | |
2455 | fdr_to_pst[f_idx].globals_offset = s_idx; | |
2456 | s_idx += fdr_to_pst[f_idx].n_globals; | |
2457 | fdr_to_pst[f_idx].n_globals = 0; | |
2458 | } | |
2459 | ||
2460 | /* ECOFF in ELF: | |
2461 | ||
2462 | For ECOFF in ELF, we skip the creation of the minimal symbols. | |
2463 | The ECOFF symbols should be a subset of the Elf symbols, and the | |
2464 | section information of the elf symbols will be more accurate. | |
2465 | FIXME! What about Irix 5's native linker? | |
2466 | ||
2467 | By default, Elf sections which don't exist in ECOFF | |
2468 | get put in ECOFF's absolute section by the gnu linker. | |
2469 | Since absolute sections don't get relocated, we | |
2470 | end up calculating an address different from that of | |
2471 | the symbol's minimal symbol (created earlier from the | |
025bb325 | 2472 | Elf symtab). |
c906108c SS |
2473 | |
2474 | To fix this, either : | |
2475 | 1) don't create the duplicate symbol | |
c5aa993b JM |
2476 | (assumes ECOFF symtab is a subset of the ELF symtab; |
2477 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2478 | 2) create it, only if lookup for existing symbol in ELF's minimal |
c5aa993b JM |
2479 | symbols fails |
2480 | (inefficient; | |
2481 | assumes no side-effects result from ignoring ECOFF symbol) | |
c906108c | 2482 | 3) create it, but lookup ELF's minimal symbol and use it's section |
c5aa993b JM |
2483 | during relocation, then modify "uniqify" phase to merge and |
2484 | eliminate the duplicate symbol | |
2485 | (highly inefficient) | |
c906108c SS |
2486 | |
2487 | I've implemented #1 here... | |
2488 | Skip the creation of the minimal symbols based on the ECOFF | |
025bb325 | 2489 | symbol table. */ |
c906108c | 2490 | |
025bb325 | 2491 | /* Pass 2 over external syms: fill in external symbols. */ |
c5aa993b JM |
2492 | ext_in = ext_block; |
2493 | ext_in_end = ext_in + hdr->iextMax; | |
2494 | for (; ext_in < ext_in_end; ext_in++) | |
2495 | { | |
2496 | enum minimal_symbol_type ms_type = mst_text; | |
2497 | CORE_ADDR svalue = ext_in->asym.value; | |
c906108c | 2498 | |
c5aa993b JM |
2499 | /* The Irix 5 native tools seem to sometimes generate bogus |
2500 | external symbols. */ | |
2501 | if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax) | |
2502 | { | |
23136709 | 2503 | complaint (&symfile_complaints, |
3e43a32a MS |
2504 | _("bad ifd for external symbol: %d (max %ld)"), |
2505 | ext_in->ifd, hdr->ifdMax); | |
c5aa993b JM |
2506 | continue; |
2507 | } | |
2508 | if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax) | |
2509 | { | |
23136709 | 2510 | complaint (&symfile_complaints, |
e2e0b3e5 | 2511 | _("bad iss for external symbol: %ld (max %ld)"), |
23136709 | 2512 | ext_in->asym.iss, hdr->issExtMax); |
c5aa993b JM |
2513 | continue; |
2514 | } | |
c906108c | 2515 | |
c5aa993b JM |
2516 | extern_tab[fdr_to_pst[ext_in->ifd].globals_offset |
2517 | + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in; | |
c906108c SS |
2518 | |
2519 | ||
c5aa993b JM |
2520 | if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil) |
2521 | continue; | |
c906108c | 2522 | |
c906108c | 2523 | |
025bb325 | 2524 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c5aa993b JM |
2525 | name = debug_info->ssext + ext_in->asym.iss; |
2526 | ||
025bb325 | 2527 | /* Process ECOFF Symbol Types and Storage Classes. */ |
c5aa993b JM |
2528 | switch (ext_in->asym.st) |
2529 | { | |
2530 | case stProc: | |
2531 | /* Beginnning of Procedure */ | |
c5aa993b JM |
2532 | break; |
2533 | case stStaticProc: | |
2534 | /* Load time only static procs */ | |
2535 | ms_type = mst_file_text; | |
c5aa993b JM |
2536 | break; |
2537 | case stGlobal: | |
2538 | /* External symbol */ | |
2539 | if (SC_IS_COMMON (ext_in->asym.sc)) | |
2540 | { | |
2541 | /* The value of a common symbol is its size, not its address. | |
2542 | Ignore it. */ | |
c906108c | 2543 | continue; |
c5aa993b JM |
2544 | } |
2545 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2546 | { | |
2547 | ms_type = mst_data; | |
c5aa993b JM |
2548 | } |
2549 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2550 | { | |
2551 | ms_type = mst_bss; | |
c5aa993b | 2552 | } |
0e931cf0 JB |
2553 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2554 | { | |
2555 | ms_type = mst_bss; | |
0e931cf0 | 2556 | } |
c5aa993b JM |
2557 | else |
2558 | ms_type = mst_abs; | |
2559 | break; | |
2560 | case stLabel: | |
2561 | /* Label */ | |
0e931cf0 JB |
2562 | |
2563 | /* On certain platforms, some extra label symbols can be | |
025bb325 | 2564 | generated by the linker. One possible usage for this kind |
0e931cf0 | 2565 | of symbols is to represent the address of the begining of a |
025bb325 | 2566 | given section. For instance, on Tru64 5.1, the address of |
0e931cf0 JB |
2567 | the _ftext label is the start address of the .text section. |
2568 | ||
2569 | The storage class of these symbols is usually directly | |
025bb325 | 2570 | related to the section to which the symbol refers. For |
0e931cf0 JB |
2571 | instance, on Tru64 5.1, the storage class for the _fdata |
2572 | label is scData, refering to the .data section. | |
2573 | ||
2574 | It is actually possible that the section associated to the | |
025bb325 | 2575 | storage class of the label does not exist. On True64 5.1 |
0e931cf0 JB |
2576 | for instance, the libm.so shared library does not contain |
2577 | any .data section, although it contains a _fpdata label | |
025bb325 | 2578 | which storage class is scData... Since these symbols are |
0e931cf0 | 2579 | usually useless for the debugger user anyway, we just |
025bb325 | 2580 | discard these symbols. */ |
0e931cf0 | 2581 | |
c5aa993b JM |
2582 | if (SC_IS_TEXT (ext_in->asym.sc)) |
2583 | { | |
0e931cf0 JB |
2584 | if (objfile->sect_index_text == -1) |
2585 | continue; | |
2586 | ||
c5aa993b | 2587 | ms_type = mst_file_text; |
c5aa993b JM |
2588 | } |
2589 | else if (SC_IS_DATA (ext_in->asym.sc)) | |
2590 | { | |
0e931cf0 JB |
2591 | if (objfile->sect_index_data == -1) |
2592 | continue; | |
2593 | ||
c5aa993b | 2594 | ms_type = mst_file_data; |
c5aa993b JM |
2595 | } |
2596 | else if (SC_IS_BSS (ext_in->asym.sc)) | |
2597 | { | |
0e931cf0 JB |
2598 | if (objfile->sect_index_bss == -1) |
2599 | continue; | |
2600 | ||
c5aa993b | 2601 | ms_type = mst_file_bss; |
c5aa993b | 2602 | } |
0e931cf0 JB |
2603 | else if (SC_IS_SBSS (ext_in->asym.sc)) |
2604 | { | |
2605 | const int sbss_sect_index = get_section_index (objfile, ".sbss"); | |
2606 | ||
2607 | if (sbss_sect_index == -1) | |
2608 | continue; | |
2609 | ||
2610 | ms_type = mst_file_bss; | |
0e931cf0 | 2611 | } |
c5aa993b JM |
2612 | else |
2613 | ms_type = mst_abs; | |
2614 | break; | |
2615 | case stLocal: | |
2616 | case stNil: | |
2617 | /* The alpha has the section start addresses in stLocal symbols | |
025bb325 | 2618 | whose name starts with a `.'. Skip those but complain for all |
c5aa993b JM |
2619 | other stLocal symbols. |
2620 | Irix6 puts the section start addresses in stNil symbols, skip | |
025bb325 | 2621 | those too. */ |
c5aa993b JM |
2622 | if (name[0] == '.') |
2623 | continue; | |
2624 | /* Fall through. */ | |
2625 | default: | |
2626 | ms_type = mst_unknown; | |
23136709 | 2627 | unknown_ext_complaint (name); |
c5aa993b JM |
2628 | } |
2629 | if (!ECOFF_IN_ELF (cur_bfd)) | |
8dddcb8f | 2630 | record_minimal_symbol (reader, name, svalue, ms_type, ext_in->asym.sc, |
1f9872de | 2631 | objfile); |
c5aa993b | 2632 | } |
c906108c | 2633 | |
025bb325 | 2634 | /* Pass 3 over files, over local syms: fill in static symbols. */ |
c906108c SS |
2635 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
2636 | { | |
2637 | struct partial_symtab *save_pst; | |
2638 | EXTR *ext_ptr; | |
2639 | CORE_ADDR textlow; | |
2640 | ||
2641 | cur_fdr = fh = debug_info->fdr + f_idx; | |
2642 | ||
2643 | if (fh->csym == 0) | |
2644 | { | |
2645 | fdr_to_pst[f_idx].pst = NULL; | |
2646 | continue; | |
2647 | } | |
2648 | ||
2649 | /* Determine the start address for this object file from the | |
c5aa993b | 2650 | file header and relocate it, except for Irix 5.2 zero fh->adr. */ |
c906108c SS |
2651 | if (fh->cpd) |
2652 | { | |
2653 | textlow = fh->adr; | |
2654 | if (relocatable || textlow != 0) | |
3e43a32a MS |
2655 | textlow += ANOFFSET (objfile->section_offsets, |
2656 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2657 | } |
2658 | else | |
2659 | textlow = 0; | |
18a94d75 | 2660 | pst = start_psymtab_common (objfile, |
c906108c SS |
2661 | fdr_name (fh), |
2662 | textlow, | |
2663 | objfile->global_psymbols.next, | |
2664 | objfile->static_psymbols.next); | |
e38df1d0 TT |
2665 | pst->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
2666 | sizeof (struct symloc)); | |
12b9c64f | 2667 | memset (pst->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
2668 | |
2669 | save_pst = pst; | |
2670 | FDR_IDX (pst) = f_idx; | |
2671 | CUR_BFD (pst) = cur_bfd; | |
2672 | DEBUG_SWAP (pst) = debug_swap; | |
2673 | DEBUG_INFO (pst) = debug_info; | |
2674 | PENDING_LIST (pst) = pending_list; | |
2675 | ||
025bb325 | 2676 | /* The way to turn this into a symtab is to call... */ |
257e7a09 | 2677 | pst->read_symtab = mdebug_read_symtab; |
c906108c SS |
2678 | |
2679 | /* Set up language for the pst. | |
2680 | The language from the FDR is used if it is unambigious (e.g. cfront | |
c5aa993b JM |
2681 | with native cc and g++ will set the language to C). |
2682 | Otherwise we have to deduce the language from the filename. | |
2683 | Native ecoff has every header file in a separate FDR, so | |
2684 | deduce_language_from_filename will return language_unknown for | |
2685 | a header file, which is not what we want. | |
2686 | But the FDRs for the header files are after the FDR for the source | |
2687 | file, so we can assign the language of the source file to the | |
025bb325 | 2688 | following header files. Then we save the language in the private |
c5aa993b | 2689 | pst data so that we can reuse it when building symtabs. */ |
c906108c SS |
2690 | prev_language = psymtab_language; |
2691 | ||
2692 | switch (fh->lang) | |
2693 | { | |
2694 | case langCplusplusV2: | |
2695 | psymtab_language = language_cplus; | |
2696 | break; | |
2697 | default: | |
2698 | psymtab_language = deduce_language_from_filename (fdr_name (fh)); | |
2699 | break; | |
2700 | } | |
2701 | if (psymtab_language == language_unknown) | |
2702 | psymtab_language = prev_language; | |
2703 | PST_PRIVATE (pst)->pst_language = psymtab_language; | |
2704 | ||
5afc051b | 2705 | pst->texthigh = pst->textlow; |
c906108c SS |
2706 | |
2707 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
c5aa993b JM |
2708 | This symbol is emitted by mips-tfile to signal that the |
2709 | current object file uses encapsulated stabs instead of mips | |
2710 | ecoff for local symbols. (It is the second symbol because | |
2711 | the first symbol is the stFile used to signal the start of a | |
025bb325 | 2712 | file). */ |
c906108c SS |
2713 | processing_gcc_compilation = 0; |
2714 | if (fh->csym >= 2) | |
2715 | { | |
2716 | (*swap_sym_in) (cur_bfd, | |
2717 | ((char *) debug_info->external_sym | |
2718 | + (fh->isymBase + 1) * external_sym_size), | |
2719 | &sh); | |
ee300cd4 AC |
2720 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
2721 | stabs_symbol) == 0) | |
c906108c SS |
2722 | processing_gcc_compilation = 2; |
2723 | } | |
2724 | ||
2725 | if (processing_gcc_compilation != 0) | |
2726 | { | |
2727 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2728 | { | |
2729 | int type_code; | |
0d5cff50 | 2730 | const char *namestring; |
c906108c SS |
2731 | |
2732 | (*swap_sym_in) (cur_bfd, | |
2733 | (((char *) debug_info->external_sym) | |
c5aa993b | 2734 | + (fh->isymBase + cur_sdx) * external_sym_size), |
c906108c SS |
2735 | &sh); |
2736 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2737 | if (!ECOFF_IS_STAB (&sh)) | |
2738 | { | |
2739 | if (sh.st == stProc || sh.st == stStaticProc) | |
2740 | { | |
2741 | CORE_ADDR procaddr; | |
2742 | long isym; | |
c5aa993b | 2743 | |
c906108c SS |
2744 | if (sh.st == stStaticProc) |
2745 | { | |
2746 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
8dddcb8f | 2747 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2748 | mst_file_text, sh.sc, |
2749 | objfile); | |
c906108c | 2750 | } |
2273f0ac TT |
2751 | sh.value += ANOFFSET (objfile->section_offsets, |
2752 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
2753 | procaddr = sh.value; |
2754 | ||
2755 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2756 | (debug_info->external_aux | |
2757 | + fh->iauxBase | |
2758 | + sh.index)); | |
2759 | (*swap_sym_in) (cur_bfd, | |
2760 | ((char *) debug_info->external_sym | |
2761 | + ((fh->isymBase + isym - 1) | |
2762 | * external_sym_size)), | |
2763 | &sh); | |
2764 | if (sh.st == stEnd) | |
2765 | { | |
2766 | CORE_ADDR high = procaddr + sh.value; | |
2767 | ||
c5aa993b | 2768 | /* Kludge for Irix 5.2 zero fh->adr. */ |
c906108c | 2769 | if (!relocatable |
5afc051b JB |
2770 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
2771 | pst->textlow = procaddr; | |
2772 | if (high > pst->texthigh) | |
2773 | pst->texthigh = high; | |
c906108c SS |
2774 | } |
2775 | } | |
2776 | else if (sh.st == stStatic) | |
2777 | { | |
2778 | switch (sh.sc) | |
2779 | { | |
2780 | case scUndefined: | |
2781 | case scSUndefined: | |
2782 | case scNil: | |
2783 | case scAbs: | |
2784 | break; | |
2785 | ||
2786 | case scData: | |
2787 | case scSData: | |
2788 | case scRData: | |
2789 | case scPData: | |
2790 | case scXData: | |
2791 | namestring = debug_info->ss + fh->issBase + sh.iss; | |
8dddcb8f | 2792 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2793 | mst_file_data, sh.sc, |
2794 | objfile); | |
2273f0ac TT |
2795 | sh.value += ANOFFSET (objfile->section_offsets, |
2796 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
2797 | break; |
2798 | ||
2799 | default: | |
2800 | /* FIXME! Shouldn't this use cases for bss, | |
025bb325 | 2801 | then have the default be abs? */ |
c906108c | 2802 | namestring = debug_info->ss + fh->issBase + sh.iss; |
8dddcb8f | 2803 | record_minimal_symbol (reader, namestring, sh.value, |
1f9872de JB |
2804 | mst_file_bss, sh.sc, |
2805 | objfile); | |
2273f0ac TT |
2806 | sh.value += ANOFFSET (objfile->section_offsets, |
2807 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
2808 | break; |
2809 | } | |
2810 | } | |
2811 | continue; | |
2812 | } | |
025bb325 | 2813 | /* Handle stabs continuation. */ |
c906108c SS |
2814 | { |
2815 | char *stabstring = debug_info->ss + fh->issBase + sh.iss; | |
2816 | int len = strlen (stabstring); | |
b8d56208 | 2817 | |
c5aa993b | 2818 | while (stabstring[len - 1] == '\\') |
c906108c SS |
2819 | { |
2820 | SYMR sh2; | |
2821 | char *stabstring1 = stabstring; | |
2822 | char *stabstring2; | |
2823 | int len2; | |
2824 | ||
025bb325 | 2825 | /* Ignore continuation char from 1st string. */ |
c906108c SS |
2826 | len--; |
2827 | ||
025bb325 | 2828 | /* Read next stabstring. */ |
c906108c SS |
2829 | cur_sdx++; |
2830 | (*swap_sym_in) (cur_bfd, | |
2831 | (((char *) debug_info->external_sym) | |
c5aa993b | 2832 | + (fh->isymBase + cur_sdx) |
c906108c SS |
2833 | * external_sym_size), |
2834 | &sh2); | |
2835 | stabstring2 = debug_info->ss + fh->issBase + sh2.iss; | |
2836 | len2 = strlen (stabstring2); | |
2837 | ||
025bb325 | 2838 | /* Concatinate stabstring2 with stabstring1. */ |
c906108c | 2839 | if (stabstring |
c5aa993b | 2840 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
224c3ddb SM |
2841 | stabstring |
2842 | = (char *) xrealloc (stabstring, len + len2 + 1); | |
c906108c | 2843 | else |
86f902e0 | 2844 | { |
224c3ddb | 2845 | stabstring = (char *) xmalloc (len + len2 + 1); |
86f902e0 FF |
2846 | strcpy (stabstring, stabstring1); |
2847 | } | |
c906108c SS |
2848 | strcpy (stabstring + len, stabstring2); |
2849 | len += len2; | |
2850 | } | |
2851 | ||
d3119d1e EZ |
2852 | switch (type_code) |
2853 | { | |
a121b7c1 | 2854 | const char *p; |
b8d56208 | 2855 | |
3e43a32a | 2856 | /* Standard, external, non-debugger, symbols. */ |
d3119d1e EZ |
2857 | |
2858 | case N_TEXT | N_EXT: | |
2859 | case N_NBTEXT | N_EXT: | |
3e43a32a MS |
2860 | sh.value += ANOFFSET (objfile->section_offsets, |
2861 | SECT_OFF_TEXT (objfile)); | |
d3119d1e EZ |
2862 | goto record_it; |
2863 | ||
2864 | case N_DATA | N_EXT: | |
2865 | case N_NBDATA | N_EXT: | |
3e43a32a MS |
2866 | sh.value += ANOFFSET (objfile->section_offsets, |
2867 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2868 | goto record_it; |
2869 | ||
2870 | case N_BSS: | |
2871 | case N_BSS | N_EXT: | |
2872 | case N_NBBSS | N_EXT: | |
025bb325 | 2873 | case N_SETV | N_EXT: /* FIXME, is this in BSS? */ |
3e43a32a MS |
2874 | sh.value += ANOFFSET (objfile->section_offsets, |
2875 | SECT_OFF_BSS (objfile)); | |
d3119d1e EZ |
2876 | goto record_it; |
2877 | ||
2878 | case N_ABS | N_EXT: | |
2879 | record_it: | |
b98bd911 | 2880 | continue; |
d3119d1e | 2881 | |
025bb325 | 2882 | /* Standard, local, non-debugger, symbols. */ |
d3119d1e EZ |
2883 | |
2884 | case N_NBTEXT: | |
2885 | ||
3e43a32a MS |
2886 | /* We need to be able to deal with both N_FN or |
2887 | N_TEXT, because we have no way of knowing | |
2888 | whether the sys-supplied ld or GNU ld was used | |
2889 | to make the executable. Sequents throw in | |
2890 | another wrinkle -- they renumbered N_FN. */ | |
d3119d1e EZ |
2891 | |
2892 | case N_FN: | |
2893 | case N_FN_SEQ: | |
2894 | case N_TEXT: | |
2895 | continue; | |
2896 | ||
2897 | case N_DATA: | |
3e43a32a MS |
2898 | sh.value += ANOFFSET (objfile->section_offsets, |
2899 | SECT_OFF_DATA (objfile)); | |
d3119d1e EZ |
2900 | goto record_it; |
2901 | ||
2902 | case N_UNDF | N_EXT: | |
025bb325 | 2903 | continue; /* Just undefined, not COMMON. */ |
d3119d1e EZ |
2904 | |
2905 | case N_UNDF: | |
2906 | continue; | |
2907 | ||
2908 | /* Lots of symbol types we can just ignore. */ | |
2909 | ||
2910 | case N_ABS: | |
2911 | case N_NBDATA: | |
2912 | case N_NBBSS: | |
2913 | continue; | |
2914 | ||
025bb325 | 2915 | /* Keep going . . . */ |
d3119d1e EZ |
2916 | |
2917 | /* | |
2918 | * Special symbol types for GNU | |
2919 | */ | |
2920 | case N_INDR: | |
2921 | case N_INDR | N_EXT: | |
2922 | case N_SETA: | |
2923 | case N_SETA | N_EXT: | |
2924 | case N_SETT: | |
2925 | case N_SETT | N_EXT: | |
2926 | case N_SETD: | |
2927 | case N_SETD | N_EXT: | |
2928 | case N_SETB: | |
2929 | case N_SETB | N_EXT: | |
2930 | case N_SETV: | |
2931 | continue; | |
2932 | ||
2933 | /* | |
2934 | * Debugger symbols | |
2935 | */ | |
2936 | ||
2937 | case N_SO: | |
2938 | { | |
d3119d1e | 2939 | static int prev_so_symnum = -10; |
0ba1096a | 2940 | const char *p; |
d3119d1e | 2941 | |
3e43a32a | 2942 | /* A zero value is probably an indication for the |
8763cede | 2943 | SunPRO 3.0 compiler. dbx_end_psymtab explicitly tests |
3e43a32a | 2944 | for zero, so don't relocate it. */ |
d3119d1e | 2945 | |
203c3895 | 2946 | if (sh.value == 0 |
5e2b427d | 2947 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
78cc6c2d | 2948 | textlow_not_set = 1; |
d3119d1e EZ |
2949 | else |
2950 | textlow_not_set = 0; | |
203c3895 | 2951 | |
d3119d1e | 2952 | if (prev_so_symnum != symnum - 1) |
025bb325 | 2953 | { /* Here if prev stab wasn't N_SO. */ |
d3119d1e EZ |
2954 | if (pst) |
2955 | { | |
2956 | pst = (struct partial_symtab *) 0; | |
2957 | includes_used = 0; | |
2958 | dependencies_used = 0; | |
2959 | } | |
2960 | } | |
2961 | ||
2962 | prev_so_symnum = symnum; | |
c906108c | 2963 | |
025bb325 MS |
2964 | /* End the current partial symtab and start a |
2965 | new one. */ | |
d3119d1e EZ |
2966 | |
2967 | /* SET_NAMESTRING ();*/ | |
2968 | namestring = stabstring; | |
2969 | ||
3e43a32a | 2970 | /* Null name means end of .o file. Don't start a new |
025bb325 | 2971 | one. */ |
d3119d1e EZ |
2972 | if (*namestring == '\000') |
2973 | continue; | |
2974 | ||
3e43a32a MS |
2975 | /* Some compilers (including gcc) emit a pair of |
2976 | initial N_SOs. The first one is a directory name; | |
2977 | the second the file name. If pst exists, is | |
2978 | empty, and has a filename ending in '/', we assume | |
025bb325 | 2979 | the previous N_SO was a directory name. */ |
0ba1096a KT |
2980 | p = lbasename (namestring); |
2981 | if (p != namestring && *p == '\000') | |
3e43a32a | 2982 | continue; /* Simply ignore directory |
025bb325 | 2983 | name SOs. */ |
d3119d1e | 2984 | |
3e43a32a MS |
2985 | /* Some other compilers (C++ ones in particular) emit |
2986 | useless SOs for non-existant .c files. We ignore | |
2987 | all subsequent SOs that immediately follow the | |
2988 | first. */ | |
d3119d1e EZ |
2989 | |
2990 | if (!pst) | |
2991 | pst = save_pst; | |
2992 | continue; | |
2993 | } | |
2994 | ||
2995 | case N_BINCL: | |
2996 | continue; | |
2997 | ||
2998 | case N_SOL: | |
2999 | { | |
3000 | enum language tmp_language; | |
b8d56208 | 3001 | |
025bb325 | 3002 | /* Mark down an include file in the current psymtab. */ |
d3119d1e | 3003 | |
025bb325 | 3004 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
3005 | namestring = stabstring; |
3006 | ||
3e43a32a MS |
3007 | tmp_language |
3008 | = deduce_language_from_filename (namestring); | |
d3119d1e | 3009 | |
3e43a32a MS |
3010 | /* Only change the psymtab's language if we've |
3011 | learned something useful (eg. tmp_language is not | |
3012 | language_unknown). In addition, to match what | |
3013 | start_subfile does, never change from C++ to | |
3014 | C. */ | |
d3119d1e EZ |
3015 | if (tmp_language != language_unknown |
3016 | && (tmp_language != language_c | |
3017 | || psymtab_language != language_cplus)) | |
3018 | psymtab_language = tmp_language; | |
3019 | ||
3e43a32a MS |
3020 | /* In C++, one may expect the same filename to come |
3021 | round many times, when code is coming alternately | |
3022 | from the main file and from inline functions in | |
025bb325 | 3023 | other files. So I check to see if this is a file |
3e43a32a MS |
3024 | we've seen before -- either the main source file, |
3025 | or a previously included file. | |
3026 | ||
3027 | This seems to be a lot of time to be spending on | |
3028 | N_SOL, but things like "break c-exp.y:435" need to | |
3029 | work (I suppose the psymtab_include_list could be | |
3030 | hashed or put in a binary tree, if profiling shows | |
3031 | this is a major hog). */ | |
0ba1096a | 3032 | if (pst && filename_cmp (namestring, pst->filename) == 0) |
d3119d1e | 3033 | continue; |
b8d56208 | 3034 | |
d3119d1e | 3035 | { |
aa1ee363 | 3036 | int i; |
b8d56208 | 3037 | |
d3119d1e | 3038 | for (i = 0; i < includes_used; i++) |
0ba1096a KT |
3039 | if (filename_cmp (namestring, |
3040 | psymtab_include_list[i]) == 0) | |
d3119d1e EZ |
3041 | { |
3042 | i = -1; | |
3043 | break; | |
3044 | } | |
3045 | if (i == -1) | |
3046 | continue; | |
3047 | } | |
3048 | ||
3049 | psymtab_include_list[includes_used++] = namestring; | |
3050 | if (includes_used >= includes_allocated) | |
3051 | { | |
0d5cff50 | 3052 | const char **orig = psymtab_include_list; |
d3119d1e | 3053 | |
0d5cff50 | 3054 | psymtab_include_list = (const char **) |
d3119d1e | 3055 | alloca ((includes_allocated *= 2) * |
0d5cff50 | 3056 | sizeof (const char *)); |
4efb68b1 | 3057 | memcpy (psymtab_include_list, orig, |
0d5cff50 | 3058 | includes_used * sizeof (const char *)); |
d3119d1e EZ |
3059 | } |
3060 | continue; | |
3061 | } | |
025bb325 | 3062 | case N_LSYM: /* Typedef or automatic variable. */ |
3e43a32a MS |
3063 | case N_STSYM: /* Data seg var -- static */ |
3064 | case N_LCSYM: /* BSS " */ | |
3065 | case N_ROSYM: /* Read-only data seg var -- static. */ | |
3066 | case N_NBSTS: /* Gould nobase. */ | |
3067 | case N_NBLCS: /* symbols. */ | |
d3119d1e | 3068 | case N_FUN: |
3e43a32a MS |
3069 | case N_GSYM: /* Global (extern) variable; can be |
3070 | data or bss (sigh FIXME). */ | |
d3119d1e EZ |
3071 | |
3072 | /* Following may probably be ignored; I'll leave them here | |
3073 | for now (until I do Pascal and Modula 2 extensions). */ | |
3074 | ||
3e43a32a MS |
3075 | case N_PC: /* I may or may not need this; I |
3076 | suspect not. */ | |
3077 | case N_M2C: /* I suspect that I can ignore this | |
025bb325 MS |
3078 | here. */ |
3079 | case N_SCOPE: /* Same. */ | |
d3119d1e | 3080 | |
025bb325 | 3081 | /* SET_NAMESTRING (); */ |
d3119d1e EZ |
3082 | namestring = stabstring; |
3083 | p = (char *) strchr (namestring, ':'); | |
3084 | if (!p) | |
025bb325 | 3085 | continue; /* Not a debugging symbol. */ |
d3119d1e EZ |
3086 | |
3087 | ||
3088 | ||
3089 | /* Main processing section for debugging symbols which | |
3e43a32a MS |
3090 | the initial read through the symbol tables needs to |
3091 | worry about. If we reach this point, the symbol | |
3092 | which we are considering is definitely one we are | |
3093 | interested in. p must also contain the (valid) | |
3094 | index into the namestring which indicates the | |
3095 | debugging type symbol. */ | |
d3119d1e EZ |
3096 | |
3097 | switch (p[1]) | |
3098 | { | |
3099 | case 'S': | |
3e43a32a MS |
3100 | sh.value += ANOFFSET (objfile->section_offsets, |
3101 | SECT_OFF_DATA (objfile)); | |
149ad273 | 3102 | |
5e2b427d | 3103 | if (gdbarch_static_transform_name_p (gdbarch)) |
149ad273 | 3104 | namestring = gdbarch_static_transform_name |
5e2b427d | 3105 | (gdbarch, namestring); |
149ad273 | 3106 | |
04a679b8 | 3107 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3108 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e | 3109 | &objfile->static_psymbols, |
1762568f | 3110 | sh.value, |
d3119d1e EZ |
3111 | psymtab_language, objfile); |
3112 | continue; | |
3113 | case 'G': | |
3e43a32a MS |
3114 | sh.value += ANOFFSET (objfile->section_offsets, |
3115 | SECT_OFF_DATA (objfile)); | |
025bb325 MS |
3116 | /* The addresses in these entries are reported |
3117 | to be wrong. See the code that reads 'G's | |
3118 | for symtabs. */ | |
04a679b8 | 3119 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3120 | VAR_DOMAIN, LOC_STATIC, |
d3119d1e | 3121 | &objfile->global_psymbols, |
1762568f | 3122 | sh.value, |
d3119d1e EZ |
3123 | psymtab_language, objfile); |
3124 | continue; | |
3125 | ||
3126 | case 'T': | |
3127 | /* When a 'T' entry is defining an anonymous enum, it | |
3128 | may have a name which is the empty string, or a | |
3129 | single space. Since they're not really defining a | |
3130 | symbol, those shouldn't go in the partial symbol | |
3131 | table. We do pick up the elements of such enums at | |
3132 | 'check_enum:', below. */ | |
3133 | if (p >= namestring + 2 | |
3134 | || (p == namestring + 1 | |
3135 | && namestring[0] != ' ')) | |
3136 | { | |
04a679b8 | 3137 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3138 | STRUCT_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3139 | &objfile->static_psymbols, |
1762568f | 3140 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3141 | if (p[2] == 't') |
3142 | { | |
3143 | /* Also a typedef with the same name. */ | |
3e43a32a MS |
3144 | add_psymbol_to_list (namestring, |
3145 | p - namestring, 1, | |
176620f1 | 3146 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3147 | &objfile->static_psymbols, |
1762568f | 3148 | 0, psymtab_language, |
3e43a32a | 3149 | objfile); |
d3119d1e EZ |
3150 | p += 1; |
3151 | } | |
d3119d1e EZ |
3152 | } |
3153 | goto check_enum; | |
3154 | case 't': | |
3e43a32a | 3155 | if (p != namestring) /* a name is there, not |
025bb325 | 3156 | just :T... */ |
d3119d1e | 3157 | { |
04a679b8 | 3158 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3159 | VAR_DOMAIN, LOC_TYPEDEF, |
d3119d1e | 3160 | &objfile->static_psymbols, |
1762568f | 3161 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3162 | } |
3163 | check_enum: | |
3e43a32a MS |
3164 | /* If this is an enumerated type, we need to add |
3165 | all the enum constants to the partial symbol | |
3166 | table. This does not cover enums without names, | |
025bb325 | 3167 | e.g. "enum {a, b} c;" in C, but fortunately |
3e43a32a MS |
3168 | those are rare. There is no way for GDB to find |
3169 | those from the enum type without spending too | |
3170 | much time on it. Thus to solve this problem, | |
3171 | the compiler needs to put out the enum in a | |
3172 | nameless type. GCC2 does this. */ | |
d3119d1e EZ |
3173 | |
3174 | /* We are looking for something of the form | |
3175 | <name> ":" ("t" | "T") [<number> "="] "e" | |
3176 | {<constant> ":" <value> ","} ";". */ | |
3177 | ||
3178 | /* Skip over the colon and the 't' or 'T'. */ | |
3179 | p += 2; | |
3e43a32a MS |
3180 | /* This type may be given a number. Also, numbers |
3181 | can come in pairs like (0,26). Skip over it. */ | |
d3119d1e EZ |
3182 | while ((*p >= '0' && *p <= '9') |
3183 | || *p == '(' || *p == ',' || *p == ')' | |
3184 | || *p == '=') | |
3185 | p++; | |
3186 | ||
3187 | if (*p++ == 'e') | |
3188 | { | |
3e43a32a MS |
3189 | /* The aix4 compiler emits extra crud before |
3190 | the members. */ | |
d3119d1e EZ |
3191 | if (*p == '-') |
3192 | { | |
3193 | /* Skip over the type (?). */ | |
3194 | while (*p != ':') | |
3195 | p++; | |
3196 | ||
3197 | /* Skip over the colon. */ | |
3198 | p++; | |
3199 | } | |
3200 | ||
3201 | /* We have found an enumerated type. */ | |
3202 | /* According to comments in read_enum_type | |
3203 | a comma could end it instead of a semicolon. | |
3204 | I don't know where that happens. | |
3205 | Accept either. */ | |
3206 | while (*p && *p != ';' && *p != ',') | |
3207 | { | |
a121b7c1 | 3208 | const char *q; |
d3119d1e | 3209 | |
3e43a32a MS |
3210 | /* Check for and handle cretinous dbx |
3211 | symbol name continuation! */ | |
d3119d1e EZ |
3212 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) |
3213 | p = next_symbol_text (objfile); | |
3214 | ||
3215 | /* Point to the character after the name | |
3216 | of the enum constant. */ | |
3217 | for (q = p; *q && *q != ':'; q++) | |
3218 | ; | |
3219 | /* Note that the value doesn't matter for | |
3e43a32a MS |
3220 | enum constants in psymtabs, just in |
3221 | symtabs. */ | |
04a679b8 | 3222 | add_psymbol_to_list (p, q - p, 1, |
176620f1 | 3223 | VAR_DOMAIN, LOC_CONST, |
3e43a32a | 3224 | &objfile->static_psymbols, |
1762568f | 3225 | 0, psymtab_language, |
3e43a32a | 3226 | objfile); |
d3119d1e EZ |
3227 | /* Point past the name. */ |
3228 | p = q; | |
3229 | /* Skip over the value. */ | |
3230 | while (*p && *p != ',') | |
3231 | p++; | |
3232 | /* Advance past the comma. */ | |
3233 | if (*p) | |
3234 | p++; | |
3235 | } | |
3236 | } | |
3237 | continue; | |
3238 | case 'c': | |
3239 | /* Constant, e.g. from "const" in Pascal. */ | |
04a679b8 | 3240 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3241 | VAR_DOMAIN, LOC_CONST, |
3e43a32a | 3242 | &objfile->static_psymbols, |
1762568f | 3243 | 0, psymtab_language, objfile); |
d3119d1e EZ |
3244 | continue; |
3245 | ||
3246 | case 'f': | |
3247 | if (! pst) | |
3248 | { | |
3249 | int name_len = p - namestring; | |
224c3ddb | 3250 | char *name = (char *) xmalloc (name_len + 1); |
b8d56208 | 3251 | |
d3119d1e EZ |
3252 | memcpy (name, namestring, name_len); |
3253 | name[name_len] = '\0'; | |
23136709 | 3254 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3255 | xfree (name); |
3256 | } | |
3e43a32a MS |
3257 | sh.value += ANOFFSET (objfile->section_offsets, |
3258 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3259 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3260 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e | 3261 | &objfile->static_psymbols, |
1762568f | 3262 | sh.value, |
d3119d1e EZ |
3263 | psymtab_language, objfile); |
3264 | continue; | |
3265 | ||
3266 | /* Global functions were ignored here, but now they | |
3e43a32a MS |
3267 | are put into the global psymtab like one would |
3268 | expect. They're also in the minimal symbol | |
3269 | table. */ | |
d3119d1e EZ |
3270 | case 'F': |
3271 | if (! pst) | |
3272 | { | |
3273 | int name_len = p - namestring; | |
224c3ddb | 3274 | char *name = (char *) xmalloc (name_len + 1); |
b8d56208 | 3275 | |
d3119d1e EZ |
3276 | memcpy (name, namestring, name_len); |
3277 | name[name_len] = '\0'; | |
23136709 | 3278 | function_outside_compilation_unit_complaint (name); |
d3119d1e EZ |
3279 | xfree (name); |
3280 | } | |
3e43a32a MS |
3281 | sh.value += ANOFFSET (objfile->section_offsets, |
3282 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 3283 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 3284 | VAR_DOMAIN, LOC_BLOCK, |
d3119d1e | 3285 | &objfile->global_psymbols, |
1762568f | 3286 | sh.value, |
d3119d1e EZ |
3287 | psymtab_language, objfile); |
3288 | continue; | |
3289 | ||
3e43a32a MS |
3290 | /* Two things show up here (hopefully); static |
3291 | symbols of local scope (static used inside | |
3292 | braces) or extensions of structure symbols. We | |
3293 | can ignore both. */ | |
d3119d1e EZ |
3294 | case 'V': |
3295 | case '(': | |
3296 | case '0': | |
3297 | case '1': | |
3298 | case '2': | |
3299 | case '3': | |
3300 | case '4': | |
3301 | case '5': | |
3302 | case '6': | |
3303 | case '7': | |
3304 | case '8': | |
3305 | case '9': | |
3306 | case '-': | |
3e43a32a MS |
3307 | case '#': /* For symbol identification (used |
3308 | in live ranges). */ | |
d3119d1e EZ |
3309 | continue; |
3310 | ||
3311 | case ':': | |
3e43a32a MS |
3312 | /* It is a C++ nested symbol. We don't need to |
3313 | record it (I don't think); if we try to look up | |
3314 | foo::bar::baz, then symbols for the symtab | |
3315 | containing foo should get read in, I think. */ | |
d3119d1e EZ |
3316 | /* Someone says sun cc puts out symbols like |
3317 | /foo/baz/maclib::/usr/local/bin/maclib, | |
3318 | which would get here with a symbol type of ':'. */ | |
3319 | continue; | |
3320 | ||
3321 | default: | |
3e43a32a MS |
3322 | /* Unexpected symbol descriptor. The second and |
3323 | subsequent stabs of a continued stab can show up | |
3324 | here. The question is whether they ever can | |
3325 | mimic a normal stab--it would be nice if not, | |
3326 | since we certainly don't want to spend the time | |
3327 | searching to the end of every string looking for | |
d3119d1e EZ |
3328 | a backslash. */ |
3329 | ||
23136709 | 3330 | complaint (&symfile_complaints, |
e2e0b3e5 | 3331 | _("unknown symbol descriptor `%c'"), p[1]); |
d3119d1e EZ |
3332 | |
3333 | /* Ignore it; perhaps it is an extension that we don't | |
3334 | know about. */ | |
3335 | continue; | |
3336 | } | |
3337 | ||
3338 | case N_EXCL: | |
3339 | continue; | |
3340 | ||
3341 | case N_ENDM: | |
5afc051b | 3342 | /* Solaris 2 end of module, finish current partial |
8763cede | 3343 | symbol table. dbx_end_psymtab will set |
5afc051b JB |
3344 | pst->texthigh to the proper value, which is |
3345 | necessary if a module compiled without | |
3346 | debugging info follows this module. */ | |
203c3895 | 3347 | if (pst |
5e2b427d | 3348 | && gdbarch_sofun_address_maybe_missing (gdbarch)) |
d3119d1e EZ |
3349 | { |
3350 | pst = (struct partial_symtab *) 0; | |
3351 | includes_used = 0; | |
3352 | dependencies_used = 0; | |
3353 | } | |
d3119d1e EZ |
3354 | continue; |
3355 | ||
3356 | case N_RBRAC: | |
5afc051b JB |
3357 | if (sh.value > save_pst->texthigh) |
3358 | save_pst->texthigh = sh.value; | |
d3119d1e EZ |
3359 | continue; |
3360 | case N_EINCL: | |
3361 | case N_DSLINE: | |
3362 | case N_BSLINE: | |
3e43a32a MS |
3363 | case N_SSYM: /* Claim: Structure or union |
3364 | element. Hopefully, I can | |
3365 | ignore this. */ | |
3366 | case N_ENTRY: /* Alternate entry point; can | |
025bb325 | 3367 | ignore. */ |
3e43a32a | 3368 | case N_MAIN: /* Can definitely ignore this. */ |
025bb325 MS |
3369 | case N_CATCH: /* These are GNU C++ extensions. */ |
3370 | case N_EHDECL: /* that can safely be ignored here. */ | |
d3119d1e EZ |
3371 | case N_LENG: |
3372 | case N_BCOMM: | |
3373 | case N_ECOMM: | |
3374 | case N_ECOML: | |
3375 | case N_FNAME: | |
3376 | case N_SLINE: | |
3377 | case N_RSYM: | |
3378 | case N_PSYM: | |
3379 | case N_LBRAC: | |
3380 | case N_NSYMS: /* Ultrix 4.0: symbol count */ | |
3381 | case N_DEFD: /* GNU Modula-2 */ | |
3e43a32a MS |
3382 | case N_ALIAS: /* SunPro F77: alias name, ignore |
3383 | for now. */ | |
d3119d1e | 3384 | |
025bb325 | 3385 | case N_OBJ: /* Useless types from Solaris. */ |
d3119d1e | 3386 | case N_OPT: |
3e43a32a | 3387 | /* These symbols aren't interesting; don't worry about |
025bb325 | 3388 | them. */ |
d3119d1e EZ |
3389 | |
3390 | continue; | |
3391 | ||
3392 | default: | |
3e43a32a MS |
3393 | /* If we haven't found it yet, ignore it. It's |
3394 | probably some new type we don't know about yet. */ | |
3395 | complaint (&symfile_complaints, | |
3396 | _("unknown symbol type %s"), | |
025bb325 | 3397 | hex_string (type_code)); /* CUR_SYMBOL_TYPE */ |
d3119d1e EZ |
3398 | continue; |
3399 | } | |
c5aa993b | 3400 | if (stabstring |
c906108c | 3401 | && stabstring != debug_info->ss + fh->issBase + sh.iss) |
b8c9b27d | 3402 | xfree (stabstring); |
c906108c | 3403 | } |
c5aa993b | 3404 | /* end - Handle continuation */ |
c906108c SS |
3405 | } |
3406 | } | |
3407 | else | |
3408 | { | |
3409 | for (cur_sdx = 0; cur_sdx < fh->csym;) | |
3410 | { | |
3411 | char *name; | |
fe978cb0 | 3412 | enum address_class theclass; |
2273f0ac | 3413 | CORE_ADDR minsym_value; |
c906108c SS |
3414 | |
3415 | (*swap_sym_in) (cur_bfd, | |
3416 | ((char *) debug_info->external_sym | |
3417 | + ((fh->isymBase + cur_sdx) | |
3418 | * external_sym_size)), | |
3419 | &sh); | |
3420 | ||
3421 | if (ECOFF_IS_STAB (&sh)) | |
3422 | { | |
3423 | cur_sdx++; | |
3424 | continue; | |
3425 | } | |
3426 | ||
3427 | /* Non absolute static symbols go into the minimal table. */ | |
c5aa993b | 3428 | if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil |
c906108c SS |
3429 | || (sh.index == indexNil |
3430 | && (sh.st != stStatic || sh.sc == scAbs))) | |
3431 | { | |
025bb325 | 3432 | /* FIXME, premature? */ |
c906108c SS |
3433 | cur_sdx++; |
3434 | continue; | |
3435 | } | |
3436 | ||
3437 | name = debug_info->ss + fh->issBase + sh.iss; | |
3438 | ||
2273f0ac TT |
3439 | minsym_value = sh.value; |
3440 | ||
c906108c SS |
3441 | switch (sh.sc) |
3442 | { | |
3443 | case scText: | |
3444 | case scRConst: | |
3445 | /* The value of a stEnd symbol is the displacement from the | |
3446 | corresponding start symbol value, do not relocate it. */ | |
3447 | if (sh.st != stEnd) | |
3e43a32a MS |
3448 | sh.value += ANOFFSET (objfile->section_offsets, |
3449 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3450 | break; |
3451 | case scData: | |
3452 | case scSData: | |
3453 | case scRData: | |
3454 | case scPData: | |
3455 | case scXData: | |
3e43a32a MS |
3456 | sh.value += ANOFFSET (objfile->section_offsets, |
3457 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3458 | break; |
3459 | case scBss: | |
3460 | case scSBss: | |
3e43a32a MS |
3461 | sh.value += ANOFFSET (objfile->section_offsets, |
3462 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3463 | break; |
3464 | } | |
3465 | ||
3466 | switch (sh.st) | |
3467 | { | |
3468 | CORE_ADDR high; | |
3469 | CORE_ADDR procaddr; | |
3470 | int new_sdx; | |
3471 | ||
3472 | case stStaticProc: | |
8dddcb8f TT |
3473 | reader.record_with_info (name, minsym_value, |
3474 | mst_file_text, | |
3475 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3476 | |
3477 | /* FALLTHROUGH */ | |
3478 | ||
3479 | case stProc: | |
1fb4c65b JB |
3480 | /* Ignore all parameter symbol records. */ |
3481 | if (sh.index >= hdr->iauxMax) | |
3482 | { | |
3483 | /* Should not happen, but does when cross-compiling | |
3484 | with the MIPS compiler. FIXME -- pull later. */ | |
3485 | index_complaint (name); | |
025bb325 | 3486 | new_sdx = cur_sdx + 1; /* Don't skip at all. */ |
1fb4c65b JB |
3487 | } |
3488 | else | |
3489 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
3490 | (debug_info->external_aux | |
3491 | + fh->iauxBase | |
3492 | + sh.index)); | |
3493 | ||
3494 | if (new_sdx <= cur_sdx) | |
3495 | { | |
3496 | /* This should not happen either... FIXME. */ | |
3497 | complaint (&symfile_complaints, | |
e2e0b3e5 | 3498 | _("bad proc end in aux found from symbol %s"), |
1fb4c65b | 3499 | name); |
025bb325 | 3500 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
1fb4c65b JB |
3501 | } |
3502 | ||
3503 | /* For stProc symbol records, we need to check the | |
3504 | storage class as well, as only (stProc, scText) | |
3505 | entries represent "real" procedures - See the | |
3506 | Compaq document titled "Object File / Symbol Table | |
3507 | Format Specification" for more information. If the | |
3508 | storage class is not scText, we discard the whole | |
3509 | block of symbol records for this stProc. */ | |
3510 | if (sh.st == stProc && sh.sc != scText) | |
3511 | goto skip; | |
3512 | ||
c906108c | 3513 | /* Usually there is a local and a global stProc symbol |
025bb325 | 3514 | for a function. This means that the function name |
c906108c SS |
3515 | has already been entered into the mimimal symbol table |
3516 | while processing the global symbols in pass 2 above. | |
3517 | One notable exception is the PROGRAM name from | |
3518 | f77 compiled executables, it is only put out as | |
3519 | local stProc symbol, and a global MAIN__ stProc symbol | |
3520 | points to it. It doesn't matter though, as gdb is | |
3521 | still able to find the PROGRAM name via the partial | |
3522 | symbol table, and the MAIN__ symbol via the minimal | |
3523 | symbol table. */ | |
3524 | if (sh.st == stProc) | |
04a679b8 | 3525 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3526 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3527 | &objfile->global_psymbols, |
1762568f | 3528 | sh.value, psymtab_language, objfile); |
c906108c | 3529 | else |
04a679b8 | 3530 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3531 | VAR_DOMAIN, LOC_BLOCK, |
c906108c | 3532 | &objfile->static_psymbols, |
1762568f | 3533 | sh.value, psymtab_language, objfile); |
c906108c | 3534 | |
c906108c SS |
3535 | procaddr = sh.value; |
3536 | ||
c906108c SS |
3537 | cur_sdx = new_sdx; |
3538 | (*swap_sym_in) (cur_bfd, | |
3539 | ((char *) debug_info->external_sym | |
3540 | + ((fh->isymBase + cur_sdx - 1) | |
3541 | * external_sym_size)), | |
3542 | &sh); | |
3543 | if (sh.st != stEnd) | |
3544 | continue; | |
3545 | ||
3546 | /* Kludge for Irix 5.2 zero fh->adr. */ | |
3547 | if (!relocatable | |
5afc051b JB |
3548 | && (pst->textlow == 0 || procaddr < pst->textlow)) |
3549 | pst->textlow = procaddr; | |
c906108c SS |
3550 | |
3551 | high = procaddr + sh.value; | |
5afc051b JB |
3552 | if (high > pst->texthigh) |
3553 | pst->texthigh = high; | |
c906108c SS |
3554 | continue; |
3555 | ||
3556 | case stStatic: /* Variable */ | |
c5aa993b | 3557 | if (SC_IS_DATA (sh.sc)) |
8dddcb8f TT |
3558 | reader.record_with_info (name, minsym_value, |
3559 | mst_file_data, | |
3560 | SECT_OFF_DATA (objfile)); | |
c906108c | 3561 | else |
8dddcb8f TT |
3562 | reader.record_with_info (name, minsym_value, |
3563 | mst_file_bss, | |
3564 | SECT_OFF_BSS (objfile)); | |
fe978cb0 | 3565 | theclass = LOC_STATIC; |
c906108c SS |
3566 | break; |
3567 | ||
c5aa993b | 3568 | case stIndirect: /* Irix5 forward declaration */ |
025bb325 | 3569 | /* Skip forward declarations from Irix5 cc. */ |
c906108c SS |
3570 | goto skip; |
3571 | ||
c5aa993b | 3572 | case stTypedef: /* Typedef */ |
c906108c SS |
3573 | /* Skip typedefs for forward declarations and opaque |
3574 | structs from alpha and mips cc. */ | |
3575 | if (sh.iss == 0 || has_opaque_xref (fh, &sh)) | |
3576 | goto skip; | |
fe978cb0 | 3577 | theclass = LOC_TYPEDEF; |
c906108c SS |
3578 | break; |
3579 | ||
3580 | case stConstant: /* Constant decl */ | |
fe978cb0 | 3581 | theclass = LOC_CONST; |
c906108c SS |
3582 | break; |
3583 | ||
3584 | case stUnion: | |
3585 | case stStruct: | |
3586 | case stEnum: | |
c5aa993b | 3587 | case stBlock: /* { }, str, un, enum */ |
c906108c | 3588 | /* Do not create a partial symbol for cc unnamed aggregates |
025bb325 | 3589 | and gcc empty aggregates. */ |
c906108c | 3590 | if ((sh.sc == scInfo |
c5aa993b | 3591 | || SC_IS_COMMON (sh.sc)) |
c906108c SS |
3592 | && sh.iss != 0 |
3593 | && sh.index != cur_sdx + 2) | |
3594 | { | |
04a679b8 | 3595 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3596 | STRUCT_DOMAIN, LOC_TYPEDEF, |
c906108c | 3597 | &objfile->static_psymbols, |
1762568f | 3598 | 0, psymtab_language, objfile); |
c906108c SS |
3599 | } |
3600 | handle_psymbol_enumerators (objfile, fh, sh.st, sh.value); | |
3601 | ||
025bb325 | 3602 | /* Skip over the block. */ |
c906108c SS |
3603 | new_sdx = sh.index; |
3604 | if (new_sdx <= cur_sdx) | |
3605 | { | |
025bb325 | 3606 | /* This happens with the Ultrix kernel. */ |
23136709 | 3607 | complaint (&symfile_complaints, |
e2e0b3e5 | 3608 | _("bad aux index at block symbol %s"), name); |
025bb325 | 3609 | new_sdx = cur_sdx + 1; /* Don't skip backward. */ |
c906108c SS |
3610 | } |
3611 | cur_sdx = new_sdx; | |
3612 | continue; | |
3613 | ||
3614 | case stFile: /* File headers */ | |
3615 | case stLabel: /* Labels */ | |
3616 | case stEnd: /* Ends of files */ | |
3617 | goto skip; | |
3618 | ||
3619 | case stLocal: /* Local variables */ | |
3620 | /* Normally these are skipped because we skip over | |
3621 | all blocks we see. However, these can occur | |
025bb325 | 3622 | as visible symbols in a .h file that contains code. */ |
c906108c SS |
3623 | goto skip; |
3624 | ||
3625 | default: | |
3626 | /* Both complaints are valid: one gives symbol name, | |
3627 | the other the offending symbol type. */ | |
e2e0b3e5 | 3628 | complaint (&symfile_complaints, _("unknown local symbol %s"), |
23136709 | 3629 | name); |
e2e0b3e5 | 3630 | complaint (&symfile_complaints, _("with type %d"), sh.st); |
c906108c SS |
3631 | cur_sdx++; |
3632 | continue; | |
3633 | } | |
025bb325 | 3634 | /* Use this gdb symbol. */ |
04a679b8 | 3635 | add_psymbol_to_list (name, strlen (name), 1, |
fe978cb0 | 3636 | VAR_DOMAIN, theclass, |
c906108c | 3637 | &objfile->static_psymbols, |
1762568f | 3638 | sh.value, psymtab_language, objfile); |
c906108c | 3639 | skip: |
025bb325 | 3640 | cur_sdx++; /* Go to next file symbol. */ |
c906108c SS |
3641 | } |
3642 | ||
025bb325 | 3643 | /* Now do enter the external symbols. */ |
c906108c SS |
3644 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; |
3645 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
3646 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
3647 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
3648 | for (; --cur_sdx >= 0; ext_ptr++) | |
3649 | { | |
fe978cb0 | 3650 | enum address_class theclass; |
c906108c SS |
3651 | SYMR *psh; |
3652 | char *name; | |
3653 | CORE_ADDR svalue; | |
3654 | ||
3655 | if (ext_ptr->ifd != f_idx) | |
3e43a32a MS |
3656 | internal_error (__FILE__, __LINE__, |
3657 | _("failed internal consistency check")); | |
c906108c SS |
3658 | psh = &ext_ptr->asym; |
3659 | ||
3660 | /* Do not add undefined symbols to the partial symbol table. */ | |
c5aa993b | 3661 | if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil) |
c906108c SS |
3662 | continue; |
3663 | ||
3664 | svalue = psh->value; | |
3665 | switch (psh->sc) | |
3666 | { | |
3667 | case scText: | |
3668 | case scRConst: | |
3e43a32a MS |
3669 | svalue += ANOFFSET (objfile->section_offsets, |
3670 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
3671 | break; |
3672 | case scData: | |
3673 | case scSData: | |
3674 | case scRData: | |
3675 | case scPData: | |
3676 | case scXData: | |
3e43a32a MS |
3677 | svalue += ANOFFSET (objfile->section_offsets, |
3678 | SECT_OFF_DATA (objfile)); | |
c906108c SS |
3679 | break; |
3680 | case scBss: | |
3681 | case scSBss: | |
3e43a32a MS |
3682 | svalue += ANOFFSET (objfile->section_offsets, |
3683 | SECT_OFF_BSS (objfile)); | |
c906108c SS |
3684 | break; |
3685 | } | |
3686 | ||
3687 | switch (psh->st) | |
3688 | { | |
3689 | case stNil: | |
3690 | /* These are generated for static symbols in .o files, | |
3691 | ignore them. */ | |
3692 | continue; | |
3693 | case stProc: | |
3694 | case stStaticProc: | |
3695 | /* External procedure symbols have been entered | |
3696 | into the minimal symbol table in pass 2 above. | |
3697 | Ignore them, as parse_external will ignore them too. */ | |
3698 | continue; | |
3699 | case stLabel: | |
fe978cb0 | 3700 | theclass = LOC_LABEL; |
c906108c SS |
3701 | break; |
3702 | default: | |
23136709 | 3703 | unknown_ext_complaint (debug_info->ssext + psh->iss); |
c906108c SS |
3704 | /* Fall through, pretend it's global. */ |
3705 | case stGlobal: | |
3706 | /* Global common symbols are resolved by the runtime loader, | |
3707 | ignore them. */ | |
c5aa993b | 3708 | if (SC_IS_COMMON (psh->sc)) |
c906108c SS |
3709 | continue; |
3710 | ||
fe978cb0 | 3711 | theclass = LOC_STATIC; |
c906108c SS |
3712 | break; |
3713 | } | |
3714 | name = debug_info->ssext + psh->iss; | |
04a679b8 | 3715 | add_psymbol_to_list (name, strlen (name), 1, |
fe978cb0 | 3716 | VAR_DOMAIN, theclass, |
c906108c | 3717 | &objfile->global_psymbols, |
1762568f | 3718 | svalue, psymtab_language, objfile); |
c906108c SS |
3719 | } |
3720 | } | |
3721 | ||
8763cede | 3722 | /* Link pst to FDR. dbx_end_psymtab returns NULL if the psymtab was |
c5aa993b | 3723 | empty and put on the free list. */ |
8763cede DE |
3724 | fdr_to_pst[f_idx].pst |
3725 | = dbx_end_psymtab (objfile, save_pst, | |
3726 | psymtab_include_list, includes_used, | |
3727 | -1, save_pst->texthigh, | |
3728 | dependency_list, dependencies_used, | |
3729 | textlow_not_set); | |
c906108c SS |
3730 | includes_used = 0; |
3731 | dependencies_used = 0; | |
3732 | ||
c906108c | 3733 | /* The objfile has its functions reordered if this partial symbol |
c5aa993b JM |
3734 | table overlaps any other partial symbol table. |
3735 | We cannot assume a reordered objfile if a partial symbol table | |
3736 | is contained within another partial symbol table, as partial symbol | |
3737 | tables for include files with executable code are contained | |
3738 | within the partial symbol table for the including source file, | |
3739 | and we do not want to flag the objfile reordered for these cases. | |
3740 | ||
3741 | This strategy works well for Irix-5.2 shared libraries, but we | |
3742 | might have to use a more elaborate (and slower) algorithm for | |
3743 | other cases. */ | |
c906108c SS |
3744 | save_pst = fdr_to_pst[f_idx].pst; |
3745 | if (save_pst != NULL | |
5afc051b | 3746 | && save_pst->textlow != 0 |
c906108c SS |
3747 | && !(objfile->flags & OBJF_REORDERED)) |
3748 | { | |
3749 | ALL_OBJFILE_PSYMTABS (objfile, pst) | |
c5aa993b JM |
3750 | { |
3751 | if (save_pst != pst | |
5afc051b JB |
3752 | && save_pst->textlow >= pst->textlow |
3753 | && save_pst->textlow < pst->texthigh | |
3754 | && save_pst->texthigh > pst->texthigh) | |
c5aa993b JM |
3755 | { |
3756 | objfile->flags |= OBJF_REORDERED; | |
3757 | break; | |
3758 | } | |
3759 | } | |
c906108c SS |
3760 | } |
3761 | } | |
3762 | ||
025bb325 | 3763 | /* Now scan the FDRs for dependencies. */ |
c906108c SS |
3764 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) |
3765 | { | |
3766 | fh = f_idx + debug_info->fdr; | |
3767 | pst = fdr_to_pst[f_idx].pst; | |
3768 | ||
c5aa993b | 3769 | if (pst == (struct partial_symtab *) NULL) |
c906108c SS |
3770 | continue; |
3771 | ||
025bb325 | 3772 | /* This should catch stabs-in-ecoff. */ |
c906108c SS |
3773 | if (fh->crfd <= 1) |
3774 | continue; | |
3775 | ||
3e43a32a MS |
3776 | /* Skip the first file indirect entry as it is a self dependency for |
3777 | source files or a reverse .h -> .c dependency for header files. */ | |
c906108c SS |
3778 | pst->number_of_dependencies = 0; |
3779 | pst->dependencies = | |
3780 | ((struct partial_symtab **) | |
8b92e4d5 | 3781 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
3782 | ((fh->crfd - 1) |
3783 | * sizeof (struct partial_symtab *)))); | |
3784 | for (s_idx = 1; s_idx < fh->crfd; s_idx++) | |
3785 | { | |
3786 | RFDT rh; | |
3787 | ||
3788 | (*swap_rfd_in) (cur_bfd, | |
3789 | ((char *) debug_info->external_rfd | |
3790 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
3791 | &rh); | |
3792 | if (rh < 0 || rh >= hdr->ifdMax) | |
3793 | { | |
e2e0b3e5 | 3794 | complaint (&symfile_complaints, _("bad file number %ld"), rh); |
c906108c SS |
3795 | continue; |
3796 | } | |
3797 | ||
3798 | /* Skip self dependencies of header files. */ | |
3799 | if (rh == f_idx) | |
3800 | continue; | |
3801 | ||
3802 | /* Do not add to dependeny list if psymtab was empty. */ | |
c5aa993b | 3803 | if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL) |
c906108c | 3804 | continue; |
3e43a32a MS |
3805 | pst->dependencies[pst->number_of_dependencies++] |
3806 | = fdr_to_pst[rh].pst; | |
c906108c SS |
3807 | } |
3808 | } | |
3809 | ||
3810 | /* Remove the dummy psymtab created for -O3 images above, if it is | |
3811 | still empty, to enable the detection of stripped executables. */ | |
3812 | if (objfile->psymtabs->next == NULL | |
3813 | && objfile->psymtabs->number_of_dependencies == 0 | |
3814 | && objfile->psymtabs->n_global_syms == 0 | |
3815 | && objfile->psymtabs->n_static_syms == 0) | |
3816 | objfile->psymtabs = NULL; | |
3817 | do_cleanups (old_chain); | |
3818 | } | |
3819 | ||
3820 | /* If the current psymbol has an enumerated type, we need to add | |
b021a221 | 3821 | all the enum constants to the partial symbol table. */ |
c906108c SS |
3822 | |
3823 | static void | |
fba45db2 KB |
3824 | handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype, |
3825 | CORE_ADDR svalue) | |
c906108c SS |
3826 | { |
3827 | const bfd_size_type external_sym_size = debug_swap->external_sym_size; | |
12b9c64f | 3828 | void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in; |
c906108c | 3829 | char *ext_sym = ((char *) debug_info->external_sym |
c5aa993b | 3830 | + ((fh->isymBase + cur_sdx + 1) * external_sym_size)); |
c906108c SS |
3831 | SYMR sh; |
3832 | TIR tir; | |
3833 | ||
3834 | switch (stype) | |
3835 | { | |
3836 | case stEnum: | |
3837 | break; | |
3838 | ||
3839 | case stBlock: | |
3840 | /* It is an enumerated type if the next symbol entry is a stMember | |
c5aa993b JM |
3841 | and its auxiliary index is indexNil or its auxiliary entry |
3842 | is a plain btNil or btVoid. | |
3843 | Alpha cc -migrate enums are recognized by a zero index and | |
3844 | a zero symbol value. | |
3845 | DU 4.0 cc enums are recognized by a member type of btEnum without | |
3846 | qualifiers and a zero symbol value. */ | |
c906108c SS |
3847 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); |
3848 | if (sh.st != stMember) | |
3849 | return; | |
3850 | ||
3851 | if (sh.index == indexNil | |
3852 | || (sh.index == 0 && svalue == 0)) | |
3853 | break; | |
3854 | (*debug_swap->swap_tir_in) (fh->fBigendian, | |
3855 | &(debug_info->external_aux | |
3856 | + fh->iauxBase + sh.index)->a_ti, | |
3857 | &tir); | |
3858 | if ((tir.bt != btNil | |
3859 | && tir.bt != btVoid | |
3860 | && (tir.bt != btEnum || svalue != 0)) | |
3861 | || tir.tq0 != tqNil) | |
3862 | return; | |
3863 | break; | |
3864 | ||
3865 | default: | |
3866 | return; | |
3867 | } | |
3868 | ||
3869 | for (;;) | |
3870 | { | |
3871 | char *name; | |
3872 | ||
3873 | (*swap_sym_in) (cur_bfd, ext_sym, &sh); | |
3874 | if (sh.st != stMember) | |
3875 | break; | |
3876 | name = debug_info->ss + cur_fdr->issBase + sh.iss; | |
3877 | ||
3878 | /* Note that the value doesn't matter for enum constants | |
c5aa993b | 3879 | in psymtabs, just in symtabs. */ |
04a679b8 | 3880 | add_psymbol_to_list (name, strlen (name), 1, |
176620f1 | 3881 | VAR_DOMAIN, LOC_CONST, |
1762568f DE |
3882 | &objfile->static_psymbols, |
3883 | 0, psymtab_language, objfile); | |
c906108c SS |
3884 | ext_sym += external_sym_size; |
3885 | } | |
3886 | } | |
3887 | ||
025bb325 | 3888 | /* Get the next symbol. OBJFILE is unused. */ |
0e7e8d51 | 3889 | |
a121b7c1 | 3890 | static const char * |
0e7e8d51 | 3891 | mdebug_next_symbol_text (struct objfile *objfile) |
c906108c SS |
3892 | { |
3893 | SYMR sh; | |
3894 | ||
3895 | cur_sdx++; | |
3896 | (*debug_swap->swap_sym_in) (cur_bfd, | |
3897 | ((char *) debug_info->external_sym | |
3898 | + ((cur_fdr->isymBase + cur_sdx) | |
3899 | * debug_swap->external_sym_size)), | |
3900 | &sh); | |
3901 | return debug_info->ss + cur_fdr->issBase + sh.iss; | |
3902 | } | |
3903 | ||
3904 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
3905 | for turning the partial symtab PST into a symtab, recurring | |
3906 | first on all dependent psymtabs. The argument FILENAME is | |
3907 | only passed so we can see in debug stack traces what file | |
3908 | is being read. | |
3909 | ||
3910 | This function has a split personality, based on whether the | |
3911 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
3912 | The flow of control and even the memory allocation differs. FIXME. */ | |
3913 | ||
3914 | static void | |
5c80ed9d TT |
3915 | psymtab_to_symtab_1 (struct objfile *objfile, |
3916 | struct partial_symtab *pst, const char *filename) | |
c906108c SS |
3917 | { |
3918 | bfd_size_type external_sym_size; | |
3919 | bfd_size_type external_pdr_size; | |
12b9c64f AO |
3920 | void (*swap_sym_in) (bfd *, void *, SYMR *); |
3921 | void (*swap_pdr_in) (bfd *, void *, PDR *); | |
c906108c | 3922 | int i; |
43f3e411 | 3923 | struct compunit_symtab *cust = NULL; |
c906108c SS |
3924 | FDR *fh; |
3925 | struct linetable *lines; | |
3926 | CORE_ADDR lowest_pdr_addr = 0; | |
16db6055 | 3927 | int last_symtab_ended = 0; |
18a94d75 | 3928 | struct section_offsets *section_offsets = objfile->section_offsets; |
c906108c SS |
3929 | |
3930 | if (pst->readin) | |
3931 | return; | |
3932 | pst->readin = 1; | |
3933 | ||
3934 | /* Read in all partial symbtabs on which this one is dependent. | |
3935 | NOTE that we do have circular dependencies, sigh. We solved | |
3936 | that by setting pst->readin before this point. */ | |
3937 | ||
3938 | for (i = 0; i < pst->number_of_dependencies; i++) | |
3939 | if (!pst->dependencies[i]->readin) | |
3940 | { | |
3941 | /* Inform about additional files to be read in. */ | |
3942 | if (info_verbose) | |
3943 | { | |
3944 | fputs_filtered (" ", gdb_stdout); | |
3945 | wrap_here (""); | |
3946 | fputs_filtered ("and ", gdb_stdout); | |
3947 | wrap_here (""); | |
3948 | printf_filtered ("%s...", | |
3949 | pst->dependencies[i]->filename); | |
3950 | wrap_here (""); /* Flush output */ | |
3951 | gdb_flush (gdb_stdout); | |
3952 | } | |
025bb325 | 3953 | /* We only pass the filename for debug purposes. */ |
5c80ed9d | 3954 | psymtab_to_symtab_1 (objfile, pst->dependencies[i], |
c906108c SS |
3955 | pst->dependencies[i]->filename); |
3956 | } | |
3957 | ||
3958 | /* Do nothing if this is a dummy psymtab. */ | |
3959 | ||
3960 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
5afc051b | 3961 | && pst->textlow == 0 && pst->texthigh == 0) |
c906108c SS |
3962 | return; |
3963 | ||
025bb325 | 3964 | /* Now read the symbols for this symtab. */ |
c906108c SS |
3965 | |
3966 | cur_bfd = CUR_BFD (pst); | |
3967 | debug_swap = DEBUG_SWAP (pst); | |
3968 | debug_info = DEBUG_INFO (pst); | |
3969 | pending_list = PENDING_LIST (pst); | |
3970 | external_sym_size = debug_swap->external_sym_size; | |
3971 | external_pdr_size = debug_swap->external_pdr_size; | |
3972 | swap_sym_in = debug_swap->swap_sym_in; | |
3973 | swap_pdr_in = debug_swap->swap_pdr_in; | |
5c80ed9d | 3974 | mdebugread_objfile = objfile; |
c906108c SS |
3975 | cur_fd = FDR_IDX (pst); |
3976 | fh = ((cur_fd == -1) | |
3977 | ? (FDR *) NULL | |
3978 | : debug_info->fdr + cur_fd); | |
3979 | cur_fdr = fh; | |
3980 | ||
025bb325 | 3981 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
c906108c SS |
3982 | processing_gcc_compilation = 0; |
3983 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
3984 | { | |
3985 | SYMR sh; | |
3986 | ||
3987 | (*swap_sym_in) (cur_bfd, | |
3988 | ((char *) debug_info->external_sym | |
3989 | + (fh->isymBase + 1) * external_sym_size), | |
3990 | &sh); | |
ee300cd4 AC |
3991 | if (strcmp (debug_info->ss + fh->issBase + sh.iss, |
3992 | stabs_symbol) == 0) | |
c906108c SS |
3993 | { |
3994 | /* We indicate that this is a GCC compilation so that certain | |
3995 | features will be enabled in stabsread/dbxread. */ | |
3996 | processing_gcc_compilation = 2; | |
3997 | } | |
3998 | } | |
3999 | ||
4000 | if (processing_gcc_compilation != 0) | |
4001 | { | |
5c80ed9d | 4002 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
c906108c SS |
4003 | |
4004 | /* This symbol table contains stabs-in-ecoff entries. */ | |
4005 | ||
025bb325 | 4006 | /* Parse local symbols first. */ |
c906108c | 4007 | |
025bb325 | 4008 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr. */ |
c906108c | 4009 | { |
dd707e8e | 4010 | mdebugread_objfile = NULL; |
c906108c SS |
4011 | return; |
4012 | } | |
4013 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
4014 | { | |
4015 | SYMR sh; | |
4016 | char *name; | |
4017 | CORE_ADDR valu; | |
4018 | ||
4019 | (*swap_sym_in) (cur_bfd, | |
4020 | (((char *) debug_info->external_sym) | |
4021 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
4022 | &sh); | |
4023 | name = debug_info->ss + fh->issBase + sh.iss; | |
4024 | valu = sh.value; | |
4025 | /* XXX This is a hack. It will go away! */ | |
4026 | if (ECOFF_IS_STAB (&sh) || (name[0] == '#')) | |
4027 | { | |
4028 | int type_code = ECOFF_UNMARK_STAB (sh.index); | |
4029 | ||
4030 | /* We should never get non N_STAB symbols here, but they | |
c5aa993b JM |
4031 | should be harmless, so keep process_one_symbol from |
4032 | complaining about them. */ | |
c906108c SS |
4033 | if (type_code & N_STAB) |
4034 | { | |
16db6055 EZ |
4035 | /* If we found a trailing N_SO with no name, process |
4036 | it here instead of in process_one_symbol, so we | |
4037 | can keep a handle to its symtab. The symtab | |
4038 | would otherwise be ended twice, once in | |
025bb325 | 4039 | process_one_symbol, and once after this loop. */ |
16db6055 | 4040 | if (type_code == N_SO |
46212e0b | 4041 | && get_last_source_file () |
16db6055 EZ |
4042 | && previous_stab_code != (unsigned char) N_SO |
4043 | && *name == '\000') | |
4044 | { | |
18a94d75 | 4045 | valu += ANOFFSET (section_offsets, |
5c80ed9d | 4046 | SECT_OFF_TEXT (objfile)); |
16db6055 | 4047 | previous_stab_code = N_SO; |
43f3e411 | 4048 | cust = end_symtab (valu, SECT_OFF_TEXT (objfile)); |
16db6055 EZ |
4049 | end_stabs (); |
4050 | last_symtab_ended = 1; | |
4051 | } | |
4052 | else | |
4053 | { | |
4054 | last_symtab_ended = 0; | |
4055 | process_one_symbol (type_code, 0, valu, name, | |
18a94d75 | 4056 | section_offsets, objfile); |
16db6055 | 4057 | } |
c906108c SS |
4058 | } |
4059 | /* Similarly a hack. */ | |
4060 | else if (name[0] == '#') | |
4061 | { | |
4062 | process_one_symbol (N_SLINE, 0, valu, name, | |
18a94d75 | 4063 | section_offsets, objfile); |
c906108c SS |
4064 | } |
4065 | if (type_code == N_FUN) | |
4066 | { | |
4067 | /* Make up special symbol to contain | |
025bb325 | 4068 | procedure specific info. */ |
f92761ec | 4069 | struct mdebug_extra_func_info *e = |
b8d56208 | 4070 | ((struct mdebug_extra_func_info *) |
dd707e8e | 4071 | obstack_alloc (&mdebugread_objfile->objfile_obstack, |
b8d56208 | 4072 | sizeof (struct mdebug_extra_func_info))); |
f92761ec | 4073 | struct symbol *s = new_symbol (MDEBUG_EFI_SYMBOL_NAME); |
c906108c | 4074 | |
f92761ec | 4075 | memset (e, 0, sizeof (struct mdebug_extra_func_info)); |
176620f1 | 4076 | SYMBOL_DOMAIN (s) = LABEL_DOMAIN; |
f1e6e072 | 4077 | SYMBOL_ACLASS_INDEX (s) = LOC_CONST; |
5c80ed9d | 4078 | SYMBOL_TYPE (s) = objfile_type (objfile)->builtin_void; |
9918cab9 | 4079 | SYMBOL_VALUE_BYTES (s) = (gdb_byte *) e; |
c906108c SS |
4080 | e->pdr.framereg = -1; |
4081 | add_symbol_to_list (s, &local_symbols); | |
4082 | } | |
4083 | } | |
4084 | else if (sh.st == stLabel) | |
4085 | { | |
4086 | if (sh.index == indexNil) | |
4087 | { | |
4088 | /* This is what the gcc2_compiled and __gnu_compiled_* | |
4089 | show up as. So don't complain. */ | |
4090 | ; | |
4091 | } | |
4092 | else | |
4093 | { | |
025bb325 | 4094 | /* Handle encoded stab line number. */ |
18a94d75 | 4095 | valu += ANOFFSET (section_offsets, |
5c80ed9d | 4096 | SECT_OFF_TEXT (objfile)); |
fbf65064 UW |
4097 | record_line (current_subfile, sh.index, |
4098 | gdbarch_addr_bits_remove (gdbarch, valu)); | |
c906108c SS |
4099 | } |
4100 | } | |
4101 | else if (sh.st == stProc || sh.st == stStaticProc | |
4102 | || sh.st == stStatic || sh.st == stEnd) | |
025bb325 | 4103 | /* These are generated by gcc-2.x, do not complain. */ |
c906108c SS |
4104 | ; |
4105 | else | |
3e43a32a MS |
4106 | complaint (&symfile_complaints, |
4107 | _("unknown stabs symbol %s"), name); | |
c906108c | 4108 | } |
16db6055 EZ |
4109 | |
4110 | if (! last_symtab_ended) | |
4111 | { | |
43f3e411 | 4112 | cust = end_symtab (pst->texthigh, SECT_OFF_TEXT (objfile)); |
16db6055 EZ |
4113 | end_stabs (); |
4114 | } | |
c906108c | 4115 | |
c906108c | 4116 | /* There used to be a call to sort_blocks here, but this should not |
c5aa993b JM |
4117 | be necessary for stabs symtabs. And as sort_blocks modifies the |
4118 | start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK, | |
4119 | it did the wrong thing if the first procedure in a file was | |
4120 | generated via asm statements. */ | |
c906108c SS |
4121 | |
4122 | /* Fill in procedure info next. */ | |
4123 | if (fh->cpd > 0) | |
4124 | { | |
4125 | PDR *pr_block; | |
4126 | struct cleanup *old_chain; | |
4127 | char *pdr_ptr; | |
4128 | char *pdr_end; | |
4129 | PDR *pdr_in; | |
4130 | PDR *pdr_in_end; | |
4131 | ||
8d749320 | 4132 | pr_block = XNEWVEC (PDR, fh->cpd); |
b8c9b27d | 4133 | old_chain = make_cleanup (xfree, pr_block); |
c906108c SS |
4134 | |
4135 | pdr_ptr = ((char *) debug_info->external_pdr | |
4136 | + fh->ipdFirst * external_pdr_size); | |
4137 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
4138 | pdr_in = pr_block; | |
4139 | for (; | |
4140 | pdr_ptr < pdr_end; | |
4141 | pdr_ptr += external_pdr_size, pdr_in++) | |
4142 | { | |
4143 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4144 | ||
4145 | /* Determine lowest PDR address, the PDRs are not always | |
c5aa993b | 4146 | sorted. */ |
c906108c SS |
4147 | if (pdr_in == pr_block) |
4148 | lowest_pdr_addr = pdr_in->adr; | |
4149 | else if (pdr_in->adr < lowest_pdr_addr) | |
4150 | lowest_pdr_addr = pdr_in->adr; | |
4151 | } | |
4152 | ||
4153 | pdr_in = pr_block; | |
4154 | pdr_in_end = pdr_in + fh->cpd; | |
4155 | for (; pdr_in < pdr_in_end; pdr_in++) | |
43f3e411 | 4156 | parse_procedure (pdr_in, cust, pst); |
c906108c SS |
4157 | |
4158 | do_cleanups (old_chain); | |
4159 | } | |
4160 | } | |
4161 | else | |
4162 | { | |
4163 | /* This symbol table contains ordinary ecoff entries. */ | |
4164 | ||
30cc903e | 4165 | int maxlines, size; |
c906108c SS |
4166 | EXTR *ext_ptr; |
4167 | ||
c906108c SS |
4168 | if (fh == 0) |
4169 | { | |
4170 | maxlines = 0; | |
43f3e411 | 4171 | cust = new_symtab ("unknown", 0, objfile); |
c906108c SS |
4172 | } |
4173 | else | |
4174 | { | |
c906108c | 4175 | maxlines = 2 * fh->cline; |
43f3e411 | 4176 | cust = new_symtab (pst->filename, maxlines, objfile); |
c906108c SS |
4177 | |
4178 | /* The proper language was already determined when building | |
4179 | the psymtab, use it. */ | |
43f3e411 | 4180 | COMPUNIT_FILETABS (cust)->language = PST_PRIVATE (pst)->pst_language; |
c906108c SS |
4181 | } |
4182 | ||
43f3e411 | 4183 | psymtab_language = COMPUNIT_FILETABS (cust)->language; |
c906108c | 4184 | |
43f3e411 | 4185 | lines = SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust)); |
c906108c | 4186 | |
025bb325 | 4187 | /* Get a new lexical context. */ |
c906108c SS |
4188 | |
4189 | push_parse_stack (); | |
43f3e411 DE |
4190 | top_stack->cur_st = COMPUNIT_FILETABS (cust); |
4191 | top_stack->cur_block | |
4192 | = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), STATIC_BLOCK); | |
5afc051b | 4193 | BLOCK_START (top_stack->cur_block) = pst->textlow; |
c906108c SS |
4194 | BLOCK_END (top_stack->cur_block) = 0; |
4195 | top_stack->blocktype = stFile; | |
c906108c SS |
4196 | top_stack->cur_type = 0; |
4197 | top_stack->procadr = 0; | |
4198 | top_stack->numargs = 0; | |
4199 | found_ecoff_debugging_info = 0; | |
4200 | ||
4201 | if (fh) | |
4202 | { | |
4203 | char *sym_ptr; | |
4204 | char *sym_end; | |
4205 | ||
025bb325 | 4206 | /* Parse local symbols first. */ |
c906108c SS |
4207 | sym_ptr = ((char *) debug_info->external_sym |
4208 | + fh->isymBase * external_sym_size); | |
4209 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
4210 | while (sym_ptr < sym_end) | |
4211 | { | |
4212 | SYMR sh; | |
4213 | int c; | |
4214 | ||
4215 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); | |
4216 | c = parse_symbol (&sh, | |
4217 | debug_info->external_aux + fh->iauxBase, | |
3e43a32a | 4218 | sym_ptr, fh->fBigendian, |
18a94d75 | 4219 | section_offsets, objfile); |
c906108c SS |
4220 | sym_ptr += c * external_sym_size; |
4221 | } | |
4222 | ||
4223 | /* Linenumbers. At the end, check if we can save memory. | |
4224 | parse_lines has to look ahead an arbitrary number of PDR | |
4225 | structures, so we swap them all first. */ | |
4226 | if (fh->cpd > 0) | |
4227 | { | |
4228 | PDR *pr_block; | |
4229 | struct cleanup *old_chain; | |
4230 | char *pdr_ptr; | |
4231 | char *pdr_end; | |
4232 | PDR *pdr_in; | |
4233 | PDR *pdr_in_end; | |
4234 | ||
8d749320 | 4235 | pr_block = XNEWVEC (PDR, fh->cpd); |
c906108c | 4236 | |
b8c9b27d | 4237 | old_chain = make_cleanup (xfree, pr_block); |
c906108c SS |
4238 | |
4239 | pdr_ptr = ((char *) debug_info->external_pdr | |
4240 | + fh->ipdFirst * external_pdr_size); | |
4241 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
4242 | pdr_in = pr_block; | |
4243 | for (; | |
4244 | pdr_ptr < pdr_end; | |
4245 | pdr_ptr += external_pdr_size, pdr_in++) | |
4246 | { | |
4247 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
4248 | ||
4249 | /* Determine lowest PDR address, the PDRs are not always | |
4250 | sorted. */ | |
4251 | if (pdr_in == pr_block) | |
4252 | lowest_pdr_addr = pdr_in->adr; | |
4253 | else if (pdr_in->adr < lowest_pdr_addr) | |
4254 | lowest_pdr_addr = pdr_in->adr; | |
4255 | } | |
4256 | ||
3e43a32a MS |
4257 | parse_lines (fh, pr_block, lines, maxlines, |
4258 | pst, lowest_pdr_addr); | |
c906108c SS |
4259 | if (lines->nitems < fh->cline) |
4260 | lines = shrink_linetable (lines); | |
4261 | ||
4262 | /* Fill in procedure info next. */ | |
4263 | pdr_in = pr_block; | |
4264 | pdr_in_end = pdr_in + fh->cpd; | |
4265 | for (; pdr_in < pdr_in_end; pdr_in++) | |
43f3e411 | 4266 | parse_procedure (pdr_in, NULL, pst); |
c906108c SS |
4267 | |
4268 | do_cleanups (old_chain); | |
4269 | } | |
4270 | } | |
4271 | ||
30cc903e TT |
4272 | size = lines->nitems; |
4273 | if (size > 1) | |
4274 | --size; | |
43f3e411 | 4275 | SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust)) |
224c3ddb SM |
4276 | = ((struct linetable *) |
4277 | obstack_copy (&mdebugread_objfile->objfile_obstack, | |
4278 | lines, (sizeof (struct linetable) | |
4279 | + size * sizeof (lines->item)))); | |
30cc903e | 4280 | xfree (lines); |
c906108c SS |
4281 | |
4282 | /* .. and our share of externals. | |
025bb325 MS |
4283 | XXX use the global list to speed up things here. How? |
4284 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
43f3e411 | 4285 | top_stack->cur_st = COMPUNIT_FILETABS (cust); |
3e43a32a | 4286 | top_stack->cur_block |
439247b6 | 4287 | = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack->cur_st), |
3e43a32a | 4288 | GLOBAL_BLOCK); |
c906108c | 4289 | top_stack->blocktype = stFile; |
c906108c SS |
4290 | |
4291 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
4292 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
3e43a32a | 4293 | parse_external (ext_ptr, fh->fBigendian, |
18a94d75 | 4294 | section_offsets, objfile); |
c906108c SS |
4295 | |
4296 | /* If there are undefined symbols, tell the user. | |
c5aa993b JM |
4297 | The alpha has an undefined symbol for every symbol that is |
4298 | from a shared library, so tell the user only if verbose is on. */ | |
c906108c SS |
4299 | if (info_verbose && n_undef_symbols) |
4300 | { | |
a3f17187 | 4301 | printf_filtered (_("File %s contains %d unresolved references:"), |
43f3e411 DE |
4302 | symtab_to_filename_for_display |
4303 | (COMPUNIT_FILETABS (cust)), | |
05cba821 | 4304 | n_undef_symbols); |
3e43a32a MS |
4305 | printf_filtered ("\n\t%4d variables\n\t%4d " |
4306 | "procedures\n\t%4d labels\n", | |
c906108c SS |
4307 | n_undef_vars, n_undef_procs, n_undef_labels); |
4308 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
4309 | ||
4310 | } | |
4311 | pop_parse_stack (); | |
4312 | ||
43f3e411 | 4313 | sort_blocks (COMPUNIT_FILETABS (cust)); |
c906108c SS |
4314 | } |
4315 | ||
4316 | /* Now link the psymtab and the symtab. */ | |
43f3e411 | 4317 | pst->compunit_symtab = cust; |
c906108c | 4318 | |
dd707e8e | 4319 | mdebugread_objfile = NULL; |
c906108c SS |
4320 | } |
4321 | \f | |
025bb325 | 4322 | /* Ancillary parsing procedures. */ |
c906108c SS |
4323 | |
4324 | /* Return 1 if the symbol pointed to by SH has a cross reference | |
4325 | to an opaque aggregate type, else 0. */ | |
4326 | ||
4327 | static int | |
fba45db2 | 4328 | has_opaque_xref (FDR *fh, SYMR *sh) |
c906108c SS |
4329 | { |
4330 | TIR tir; | |
4331 | union aux_ext *ax; | |
4332 | RNDXR rn[1]; | |
4333 | unsigned int rf; | |
4334 | ||
4335 | if (sh->index == indexNil) | |
4336 | return 0; | |
4337 | ||
4338 | ax = debug_info->external_aux + fh->iauxBase + sh->index; | |
4339 | (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir); | |
4340 | if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum) | |
4341 | return 0; | |
4342 | ||
4343 | ax++; | |
4344 | (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn); | |
4345 | if (rn->rfd == 0xfff) | |
4346 | rf = AUX_GET_ISYM (fh->fBigendian, ax + 1); | |
4347 | else | |
4348 | rf = rn->rfd; | |
4349 | if (rf != -1) | |
4350 | return 0; | |
4351 | return 1; | |
4352 | } | |
4353 | ||
4354 | /* Lookup the type at relative index RN. Return it in TPP | |
4355 | if found and in any event come up with its name PNAME. | |
4356 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). | |
025bb325 | 4357 | Return value says how many aux symbols we ate. */ |
c906108c SS |
4358 | |
4359 | static int | |
3e43a32a MS |
4360 | cross_ref (int fd, union aux_ext *ax, struct type **tpp, |
4361 | enum type_code type_code, | |
025bb325 | 4362 | /* Use to alloc new type if none is found. */ |
a121b7c1 | 4363 | const char **pname, int bigend, const char *sym_name) |
c906108c SS |
4364 | { |
4365 | RNDXR rn[1]; | |
4366 | unsigned int rf; | |
4367 | int result = 1; | |
4368 | FDR *fh; | |
4369 | char *esh; | |
4370 | SYMR sh; | |
4371 | int xref_fd; | |
4372 | struct mdebug_pending *pend; | |
4373 | ||
be903358 | 4374 | *tpp = NULL; |
c906108c SS |
4375 | |
4376 | (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn); | |
4377 | ||
025bb325 | 4378 | /* Escape index means 'the next one'. */ |
c906108c SS |
4379 | if (rn->rfd == 0xfff) |
4380 | { | |
4381 | result++; | |
4382 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
4383 | } | |
4384 | else | |
4385 | { | |
4386 | rf = rn->rfd; | |
4387 | } | |
4388 | ||
4389 | /* mips cc uses a rf of -1 for opaque struct definitions. | |
19f392bc | 4390 | Set TYPE_STUB for these types so that check_typedef will |
c906108c SS |
4391 | resolve them if the struct gets defined in another compilation unit. */ |
4392 | if (rf == -1) | |
4393 | { | |
4394 | *pname = "<undefined>"; | |
19f392bc UW |
4395 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
4396 | TYPE_STUB (*tpp) = 1; | |
c906108c SS |
4397 | return result; |
4398 | } | |
4399 | ||
4400 | /* mips cc uses an escaped rn->index of 0 for struct return types | |
025bb325 | 4401 | of procedures that were compiled without -g. These will always remain |
c906108c SS |
4402 | undefined. */ |
4403 | if (rn->rfd == 0xfff && rn->index == 0) | |
4404 | { | |
4405 | *pname = "<undefined>"; | |
4406 | return result; | |
4407 | } | |
4408 | ||
4409 | /* Find the relative file descriptor and the symbol in it. */ | |
4410 | fh = get_rfd (fd, rf); | |
4411 | xref_fd = fh - debug_info->fdr; | |
4412 | ||
4413 | if (rn->index >= fh->csym) | |
4414 | { | |
4415 | /* File indirect entry is corrupt. */ | |
4416 | *pname = "<illegal>"; | |
23136709 | 4417 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4418 | return result; |
4419 | } | |
4420 | ||
4421 | /* If we have processed this symbol then we left a forwarding | |
4422 | pointer to the type in the pending list. If not, we`ll put | |
4423 | it in a list of pending types, to be processed later when | |
4424 | the file will be. In any event, we collect the name for the | |
4425 | type here. */ | |
4426 | ||
4427 | esh = ((char *) debug_info->external_sym | |
4428 | + ((fh->isymBase + rn->index) | |
4429 | * debug_swap->external_sym_size)); | |
4430 | (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh); | |
4431 | ||
4432 | /* Make sure that this type of cross reference can be handled. */ | |
4433 | if ((sh.sc != scInfo | |
4434 | || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect | |
4435 | && sh.st != stStruct && sh.st != stUnion | |
4436 | && sh.st != stEnum)) | |
c5aa993b | 4437 | && (sh.st != stBlock || !SC_IS_COMMON (sh.sc))) |
c906108c SS |
4438 | { |
4439 | /* File indirect entry is corrupt. */ | |
4440 | *pname = "<illegal>"; | |
23136709 | 4441 | bad_rfd_entry_complaint (sym_name, xref_fd, rn->index); |
c906108c SS |
4442 | return result; |
4443 | } | |
4444 | ||
4445 | *pname = debug_info->ss + fh->issBase + sh.iss; | |
4446 | ||
4447 | pend = is_pending_symbol (fh, esh); | |
4448 | if (pend) | |
4449 | *tpp = pend->t; | |
4450 | else | |
4451 | { | |
4452 | /* We have not yet seen this type. */ | |
4453 | ||
4454 | if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect) | |
4455 | { | |
4456 | TIR tir; | |
4457 | ||
4458 | /* alpha cc puts out a stTypedef with a sh.iss of zero for | |
4459 | two cases: | |
4460 | a) forward declarations of structs/unions/enums which are not | |
c5aa993b | 4461 | defined in this compilation unit. |
025bb325 | 4462 | For these the type will be void. This is a bad design decision |
c5aa993b JM |
4463 | as cross referencing across compilation units is impossible |
4464 | due to the missing name. | |
c906108c | 4465 | b) forward declarations of structs/unions/enums/typedefs which |
c5aa993b | 4466 | are defined later in this file or in another file in the same |
025bb325 | 4467 | compilation unit. Irix5 cc uses a stIndirect symbol for this. |
c5aa993b | 4468 | Simply cross reference those again to get the true type. |
c906108c SS |
4469 | The forward references are not entered in the pending list and |
4470 | in the symbol table. */ | |
4471 | ||
4472 | (*debug_swap->swap_tir_in) (bigend, | |
4473 | &(debug_info->external_aux | |
4474 | + fh->iauxBase + sh.index)->a_ti, | |
4475 | &tir); | |
4476 | if (tir.tq0 != tqNil) | |
23136709 | 4477 | complaint (&symfile_complaints, |
e2e0b3e5 | 4478 | _("illegal tq0 in forward typedef for %s"), sym_name); |
c906108c SS |
4479 | switch (tir.bt) |
4480 | { | |
4481 | case btVoid: | |
19f392bc | 4482 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c5aa993b | 4483 | *pname = "<undefined>"; |
c906108c SS |
4484 | break; |
4485 | ||
4486 | case btStruct: | |
4487 | case btUnion: | |
4488 | case btEnum: | |
4489 | cross_ref (xref_fd, | |
4490 | (debug_info->external_aux | |
4491 | + fh->iauxBase + sh.index + 1), | |
4492 | tpp, type_code, pname, | |
4493 | fh->fBigendian, sym_name); | |
4494 | break; | |
4495 | ||
4496 | case btTypedef: | |
025bb325 | 4497 | /* Follow a forward typedef. This might recursively |
c5aa993b JM |
4498 | call cross_ref till we get a non typedef'ed type. |
4499 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4500 | cannot handle typedefs without type copying. Type |
c5aa993b JM |
4501 | copying is impossible as we might have mutual forward |
4502 | references between two files and the copied type would not | |
4503 | get filled in when we later parse its definition. */ | |
c906108c SS |
4504 | *tpp = parse_type (xref_fd, |
4505 | debug_info->external_aux + fh->iauxBase, | |
4506 | sh.index, | |
c5aa993b | 4507 | (int *) NULL, |
c906108c SS |
4508 | fh->fBigendian, |
4509 | debug_info->ss + fh->issBase + sh.iss); | |
4510 | add_pending (fh, esh, *tpp); | |
4511 | break; | |
4512 | ||
4513 | default: | |
23136709 | 4514 | complaint (&symfile_complaints, |
e2e0b3e5 | 4515 | _("illegal bt %d in forward typedef for %s"), tir.bt, |
23136709 | 4516 | sym_name); |
19f392bc | 4517 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
4518 | break; |
4519 | } | |
4520 | return result; | |
4521 | } | |
4522 | else if (sh.st == stTypedef) | |
4523 | { | |
025bb325 | 4524 | /* Parse the type for a normal typedef. This might recursively call |
c906108c SS |
4525 | cross_ref till we get a non typedef'ed type. |
4526 | FIXME: This is not correct behaviour, but gdb currently | |
025bb325 | 4527 | cannot handle typedefs without type copying. But type copying is |
c906108c SS |
4528 | impossible as we might have mutual forward references between |
4529 | two files and the copied type would not get filled in when | |
4530 | we later parse its definition. */ | |
4531 | *tpp = parse_type (xref_fd, | |
4532 | debug_info->external_aux + fh->iauxBase, | |
4533 | sh.index, | |
c5aa993b | 4534 | (int *) NULL, |
c906108c SS |
4535 | fh->fBigendian, |
4536 | debug_info->ss + fh->issBase + sh.iss); | |
4537 | } | |
4538 | else | |
4539 | { | |
4540 | /* Cross reference to a struct/union/enum which is defined | |
4541 | in another file in the same compilation unit but that file | |
4542 | has not been parsed yet. | |
4543 | Initialize the type only, it will be filled in when | |
4544 | it's definition is parsed. */ | |
19f392bc | 4545 | *tpp = init_type (mdebugread_objfile, type_code, 0, NULL); |
c906108c SS |
4546 | } |
4547 | add_pending (fh, esh, *tpp); | |
4548 | } | |
4549 | ||
025bb325 | 4550 | /* We used one auxent normally, two if we got a "next one" rf. */ |
c906108c SS |
4551 | return result; |
4552 | } | |
4553 | ||
4554 | ||
4555 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
025bb325 | 4556 | keeping the symtab sorted. */ |
c906108c SS |
4557 | |
4558 | static struct symbol * | |
a121b7c1 | 4559 | mylookup_symbol (const char *name, const struct block *block, |
fe978cb0 | 4560 | domain_enum domain, enum address_class theclass) |
c906108c | 4561 | { |
8157b174 | 4562 | struct block_iterator iter; |
de4f826b | 4563 | int inc; |
e88c90f2 | 4564 | struct symbol *sym; |
c906108c | 4565 | |
c906108c | 4566 | inc = name[0]; |
de4f826b | 4567 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 4568 | { |
3567439c | 4569 | if (SYMBOL_LINKAGE_NAME (sym)[0] == inc |
176620f1 | 4570 | && SYMBOL_DOMAIN (sym) == domain |
fe978cb0 | 4571 | && SYMBOL_CLASS (sym) == theclass |
3567439c | 4572 | && strcmp (SYMBOL_LINKAGE_NAME (sym), name) == 0) |
c906108c | 4573 | return sym; |
c906108c | 4574 | } |
e88c90f2 | 4575 | |
c906108c SS |
4576 | block = BLOCK_SUPERBLOCK (block); |
4577 | if (block) | |
fe978cb0 | 4578 | return mylookup_symbol (name, block, domain, theclass); |
c906108c SS |
4579 | return 0; |
4580 | } | |
4581 | ||
4582 | ||
de4f826b | 4583 | /* Add a new symbol S to a block B. */ |
c906108c SS |
4584 | |
4585 | static void | |
c7efd0b9 | 4586 | add_symbol (struct symbol *s, struct symtab *symtab, struct block *b) |
c906108c | 4587 | { |
08be3fe3 | 4588 | symbol_set_symtab (s, symtab); |
de4f826b | 4589 | dict_add_symbol (BLOCK_DICT (b), s); |
c906108c SS |
4590 | } |
4591 | ||
025bb325 | 4592 | /* Add a new block B to a symtab S. */ |
c906108c SS |
4593 | |
4594 | static void | |
fba45db2 | 4595 | add_block (struct block *b, struct symtab *s) |
c906108c | 4596 | { |
346d1dfe TT |
4597 | /* Cast away "const", but that's ok because we're building the |
4598 | symtab and blockvector here. */ | |
439247b6 | 4599 | struct blockvector *bv = (struct blockvector *) SYMTAB_BLOCKVECTOR (s); |
c906108c | 4600 | |
12b9c64f | 4601 | bv = (struct blockvector *) xrealloc ((void *) bv, |
c906108c SS |
4602 | (sizeof (struct blockvector) |
4603 | + BLOCKVECTOR_NBLOCKS (bv) | |
4604 | * sizeof (bv->block))); | |
439247b6 DE |
4605 | if (bv != SYMTAB_BLOCKVECTOR (s)) |
4606 | SYMTAB_BLOCKVECTOR (s) = bv; | |
c906108c SS |
4607 | |
4608 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; | |
4609 | } | |
4610 | ||
4611 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
4612 | MIPS' linenumber encoding might need more than one byte | |
4613 | to describe it, LAST is used to detect these continuation lines. | |
4614 | ||
4615 | Combining lines with the same line number seems like a bad idea. | |
4616 | E.g: There could be a line number entry with the same line number after the | |
4617 | prologue and GDB should not ignore it (this is a better way to find | |
4618 | a prologue than mips_skip_prologue). | |
4619 | But due to the compressed line table format there are line number entries | |
4620 | for the same line which are needed to bridge the gap to the next | |
025bb325 | 4621 | line number entry. These entries have a bogus address info with them |
c906108c SS |
4622 | and we are unable to tell them from intended duplicate line number |
4623 | entries. | |
4624 | This is another reason why -ggdb debugging format is preferable. */ | |
4625 | ||
4626 | static int | |
fba45db2 | 4627 | add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last) |
c906108c SS |
4628 | { |
4629 | /* DEC c89 sometimes produces zero linenos which confuse gdb. | |
025bb325 | 4630 | Change them to something sensible. */ |
c906108c SS |
4631 | if (lineno == 0) |
4632 | lineno = 1; | |
4633 | if (last == 0) | |
025bb325 | 4634 | last = -2; /* Make sure we record first line. */ |
c906108c | 4635 | |
025bb325 | 4636 | if (last == lineno) /* Skip continuation lines. */ |
c906108c SS |
4637 | return lineno; |
4638 | ||
4639 | lt->item[lt->nitems].line = lineno; | |
4640 | lt->item[lt->nitems++].pc = adr << 2; | |
4641 | return lineno; | |
4642 | } | |
4643 | \f | |
025bb325 | 4644 | /* Sorting and reordering procedures. */ |
c906108c | 4645 | |
025bb325 | 4646 | /* Blocks with a smaller low bound should come first. */ |
c906108c SS |
4647 | |
4648 | static int | |
12b9c64f | 4649 | compare_blocks (const void *arg1, const void *arg2) |
c906108c | 4650 | { |
887432a5 | 4651 | LONGEST addr_diff; |
c906108c SS |
4652 | struct block **b1 = (struct block **) arg1; |
4653 | struct block **b2 = (struct block **) arg2; | |
4654 | ||
4655 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
4656 | if (addr_diff == 0) | |
4657 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); | |
4658 | return addr_diff; | |
4659 | } | |
4660 | ||
4661 | /* Sort the blocks of a symtab S. | |
4662 | Reorder the blocks in the blockvector by code-address, | |
025bb325 | 4663 | as required by some MI search routines. */ |
c906108c SS |
4664 | |
4665 | static void | |
fba45db2 | 4666 | sort_blocks (struct symtab *s) |
c906108c | 4667 | { |
346d1dfe TT |
4668 | /* We have to cast away const here, but this is ok because we're |
4669 | constructing the blockvector in this code. */ | |
439247b6 | 4670 | struct blockvector *bv = (struct blockvector *) SYMTAB_BLOCKVECTOR (s); |
c906108c | 4671 | |
49323895 | 4672 | if (BLOCKVECTOR_NBLOCKS (bv) <= FIRST_LOCAL_BLOCK) |
c906108c SS |
4673 | { |
4674 | /* Cosmetic */ | |
4675 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
4676 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
4677 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
4678 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
4679 | return; | |
4680 | } | |
4681 | /* | |
4682 | * This is very unfortunate: normally all functions are compiled in | |
4683 | * the order they are found, but if the file is compiled -O3 things | |
4684 | * are very different. It would be nice to find a reliable test | |
4685 | * to detect -O3 images in advance. | |
4686 | */ | |
49323895 | 4687 | if (BLOCKVECTOR_NBLOCKS (bv) > FIRST_LOCAL_BLOCK + 1) |
c906108c SS |
4688 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), |
4689 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
4690 | sizeof (struct block *), | |
4691 | compare_blocks); | |
4692 | ||
4693 | { | |
aa1ee363 AC |
4694 | CORE_ADDR high = 0; |
4695 | int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
c906108c SS |
4696 | |
4697 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
4698 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
4699 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
4700 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
4701 | } | |
4702 | ||
4703 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
4704 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
4705 | ||
4706 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4707 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4708 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4709 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
4710 | } | |
4711 | \f | |
4712 | ||
025bb325 | 4713 | /* Constructor/restructor/destructor procedures. */ |
c906108c | 4714 | |
de4f826b | 4715 | /* Allocate a new symtab for NAME. Needs an estimate of how many |
025bb325 | 4716 | linenumbers MAXLINES we'll put in it. */ |
c906108c | 4717 | |
43f3e411 | 4718 | static struct compunit_symtab * |
72b9f47f | 4719 | new_symtab (const char *name, int maxlines, struct objfile *objfile) |
c906108c | 4720 | { |
43f3e411 DE |
4721 | struct compunit_symtab *cust = allocate_compunit_symtab (objfile, name); |
4722 | struct symtab *symtab; | |
346d1dfe | 4723 | struct blockvector *bv; |
c906108c | 4724 | |
43f3e411 DE |
4725 | add_compunit_symtab_to_objfile (cust); |
4726 | symtab = allocate_symtab (cust, name); | |
4727 | ||
4728 | SYMTAB_LINETABLE (symtab) = new_linetable (maxlines); | |
c906108c | 4729 | |
025bb325 | 4730 | /* All symtabs must have at least two blocks. */ |
346d1dfe TT |
4731 | bv = new_bvect (2); |
4732 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = new_block (NON_FUNCTION_BLOCK); | |
4733 | BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = new_block (NON_FUNCTION_BLOCK); | |
4734 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
4735 | BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
43f3e411 | 4736 | COMPUNIT_BLOCKVECTOR (cust) = bv; |
c906108c | 4737 | |
43f3e411 DE |
4738 | COMPUNIT_DEBUGFORMAT (cust) = "ECOFF"; |
4739 | return cust; | |
c906108c SS |
4740 | } |
4741 | ||
025bb325 | 4742 | /* Allocate a new partial_symtab NAME. */ |
c906108c SS |
4743 | |
4744 | static struct partial_symtab * | |
a121b7c1 | 4745 | new_psymtab (const char *name, struct objfile *objfile) |
c906108c SS |
4746 | { |
4747 | struct partial_symtab *psymtab; | |
4748 | ||
4749 | psymtab = allocate_psymtab (name, objfile); | |
c906108c | 4750 | |
025bb325 | 4751 | /* Keep a backpointer to the file's symbols. */ |
c906108c | 4752 | |
e38df1d0 TT |
4753 | psymtab->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
4754 | sizeof (struct symloc)); | |
12b9c64f | 4755 | memset (psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
c906108c SS |
4756 | CUR_BFD (psymtab) = cur_bfd; |
4757 | DEBUG_SWAP (psymtab) = debug_swap; | |
4758 | DEBUG_INFO (psymtab) = debug_info; | |
4759 | PENDING_LIST (psymtab) = pending_list; | |
4760 | ||
025bb325 | 4761 | /* The way to turn this into a symtab is to call... */ |
257e7a09 | 4762 | psymtab->read_symtab = mdebug_read_symtab; |
c906108c SS |
4763 | return (psymtab); |
4764 | } | |
4765 | ||
4766 | ||
4767 | /* Allocate a linetable array of the given SIZE. Since the struct | |
4768 | already includes one item, we subtract one when calculating the | |
4769 | proper size to allocate. */ | |
4770 | ||
4771 | static struct linetable * | |
fba45db2 | 4772 | new_linetable (int size) |
c906108c SS |
4773 | { |
4774 | struct linetable *l; | |
4775 | ||
30cc903e TT |
4776 | if (size > 1) |
4777 | --size; | |
4778 | size = size * sizeof (l->item) + sizeof (struct linetable); | |
c906108c SS |
4779 | l = (struct linetable *) xmalloc (size); |
4780 | l->nitems = 0; | |
4781 | return l; | |
4782 | } | |
4783 | ||
025bb325 | 4784 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, |
c906108c SS |
4785 | I am not so sure about the 3.4 ones. |
4786 | ||
4787 | Since the struct linetable already includes one item, we subtract one when | |
4788 | calculating the proper size to allocate. */ | |
4789 | ||
4790 | static struct linetable * | |
fba45db2 | 4791 | shrink_linetable (struct linetable *lt) |
c906108c | 4792 | { |
12b9c64f | 4793 | return (struct linetable *) xrealloc ((void *) lt, |
c906108c SS |
4794 | (sizeof (struct linetable) |
4795 | + ((lt->nitems - 1) | |
4796 | * sizeof (lt->item)))); | |
4797 | } | |
4798 | ||
025bb325 | 4799 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ |
c906108c SS |
4800 | |
4801 | static struct blockvector * | |
fba45db2 | 4802 | new_bvect (int nblocks) |
c906108c SS |
4803 | { |
4804 | struct blockvector *bv; | |
4805 | int size; | |
4806 | ||
4807 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); | |
4808 | bv = (struct blockvector *) xzalloc (size); | |
4809 | ||
4810 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; | |
4811 | ||
4812 | return bv; | |
4813 | } | |
4814 | ||
de4f826b DC |
4815 | /* Allocate and zero a new block, and set its BLOCK_DICT. If function |
4816 | is non-zero, assume the block is associated to a function, and make | |
4817 | sure that the symbols are stored linearly; otherwise, store them | |
4818 | hashed. */ | |
c906108c SS |
4819 | |
4820 | static struct block * | |
de4f826b | 4821 | new_block (enum block_type type) |
c906108c | 4822 | { |
a1632d59 DC |
4823 | /* FIXME: carlton/2003-09-11: This should use allocate_block to |
4824 | allocate the block. Which, in turn, suggests that the block | |
4825 | should be allocated on an obstack. */ | |
8d749320 | 4826 | struct block *retval = XCNEW (struct block); |
c906108c | 4827 | |
de4f826b DC |
4828 | if (type == FUNCTION_BLOCK) |
4829 | BLOCK_DICT (retval) = dict_create_linear_expandable (); | |
4830 | else | |
4831 | BLOCK_DICT (retval) = dict_create_hashed_expandable (); | |
c906108c | 4832 | |
de4f826b | 4833 | return retval; |
c906108c SS |
4834 | } |
4835 | ||
025bb325 | 4836 | /* Create a new symbol with printname NAME. */ |
c906108c SS |
4837 | |
4838 | static struct symbol * | |
a121b7c1 | 4839 | new_symbol (const char *name) |
c906108c | 4840 | { |
e623cf5d | 4841 | struct symbol *s = allocate_symbol (mdebugread_objfile); |
c906108c | 4842 | |
f85f34ed TT |
4843 | SYMBOL_SET_LANGUAGE (s, psymtab_language, |
4844 | &mdebugread_objfile->objfile_obstack); | |
dd707e8e | 4845 | SYMBOL_SET_NAMES (s, name, strlen (name), 1, mdebugread_objfile); |
c906108c SS |
4846 | return s; |
4847 | } | |
4848 | ||
025bb325 | 4849 | /* Create a new type with printname NAME. */ |
c906108c SS |
4850 | |
4851 | static struct type * | |
fba45db2 | 4852 | new_type (char *name) |
c906108c SS |
4853 | { |
4854 | struct type *t; | |
4855 | ||
dd707e8e | 4856 | t = alloc_type (mdebugread_objfile); |
c906108c | 4857 | TYPE_NAME (t) = name; |
b4ba55a1 | 4858 | INIT_CPLUS_SPECIFIC (t); |
c906108c SS |
4859 | return t; |
4860 | } | |
4861 | \f | |
4862 | /* Read ECOFF debugging information from a BFD section. This is | |
4863 | called from elfread.c. It parses the section into a | |
4864 | ecoff_debug_info struct, and then lets the rest of the file handle | |
4865 | it as normal. */ | |
4866 | ||
4867 | void | |
fba45db2 KB |
4868 | elfmdebug_build_psymtabs (struct objfile *objfile, |
4869 | const struct ecoff_debug_swap *swap, asection *sec) | |
c906108c SS |
4870 | { |
4871 | bfd *abfd = objfile->obfd; | |
4872 | struct ecoff_debug_info *info; | |
7134143f DJ |
4873 | |
4874 | /* FIXME: It's not clear whether we should be getting minimal symbol | |
4875 | information from .mdebug in an ELF file, or whether we will. | |
4876 | Re-initialize the minimal symbol reader in case we do. */ | |
4877 | ||
d25e8719 | 4878 | minimal_symbol_reader reader (objfile); |
c906108c SS |
4879 | |
4880 | info = ((struct ecoff_debug_info *) | |
8b92e4d5 | 4881 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
4882 | sizeof (struct ecoff_debug_info))); |
4883 | ||
4884 | if (!(*swap->read_debug_info) (abfd, sec, info)) | |
8a3fe4f8 | 4885 | error (_("Error reading ECOFF debugging information: %s"), |
c906108c SS |
4886 | bfd_errmsg (bfd_get_error ())); |
4887 | ||
8dddcb8f | 4888 | mdebug_build_psymtabs (reader, objfile, swap, info); |
7134143f | 4889 | |
d25e8719 | 4890 | reader.install (); |
c906108c | 4891 | } |
c906108c SS |
4892 | |
4893 | void | |
fba45db2 | 4894 | _initialize_mdebugread (void) |
c906108c | 4895 | { |
0a9d309a | 4896 | basic_type_data = register_objfile_data (); |
f1e6e072 TT |
4897 | |
4898 | mdebug_register_index | |
4899 | = register_symbol_register_impl (LOC_REGISTER, &mdebug_register_funcs); | |
4900 | mdebug_regparm_index | |
4901 | = register_symbol_register_impl (LOC_REGPARM_ADDR, &mdebug_register_funcs); | |
c906108c | 4902 | } |