Commit | Line | Data |
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bd5635a1 | 1 | /* Read a symbol table in MIPS' format (Third-Eye). |
6c2e7392 PS |
2 | Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993 Free Software |
3 | Foundation, Inc. | |
4 | Contributed by Alessandro Forin (af@cs.cmu.edu) at CMU. Major work | |
5 | by Per Bothner, John Gilmore and Ian Lance Taylor at Cygnus Support. | |
bd5635a1 RP |
6 | |
7 | This file is part of GDB. | |
8 | ||
b8c50f09 | 9 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 10 | it under the terms of the GNU General Public License as published by |
b8c50f09 JG |
11 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. | |
bd5635a1 | 13 | |
b8c50f09 | 14 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
b8c50f09 JG |
20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 22 | |
3eaebb75 | 23 | /* This module provides three functions: mipscoff_symfile_init, |
817bc7b8 | 24 | which initializes to read a symbol file; mipscoff_new_init, which |
3eaebb75 SG |
25 | discards existing cached information when all symbols are being |
26 | discarded; and mipscoff_symfile_read, which reads a symbol table | |
27 | from a file. | |
28 | ||
29 | mipscoff_symfile_read only does the minimum work necessary for letting the | |
30 | user "name" things symbolically; it does not read the entire symtab. | |
31 | Instead, it reads the external and static symbols and puts them in partial | |
32 | symbol tables. When more extensive information is requested of a | |
33 | file, the corresponding partial symbol table is mutated into a full | |
34 | fledged symbol table by going back and reading the symbols | |
35 | for real. mipscoff_psymtab_to_symtab() is called indirectly through | |
d747e0af MT |
36 | a pointer in the psymtab to do this. |
37 | ||
38 | ECOFF symbol tables are mostly written in the byte order of the | |
39 | target machine. However, one section of the table (the auxiliary | |
40 | symbol information) is written in the host byte order. There is a | |
41 | bit in the other symbol info which describes which host byte order | |
42 | was used. ECOFF thereby takes the trophy from Intel `b.out' for | |
43 | the most brain-dead adaptation of a file format to byte order. | |
44 | ||
45 | This module can read all four of the known byte-order combinations, | |
6c2e7392 | 46 | on any type of host. */ |
d747e0af | 47 | |
bd5635a1 RP |
48 | #include "defs.h" |
49 | #include "symtab.h" | |
d747e0af | 50 | #include "gdbtypes.h" |
bd5635a1 RP |
51 | #include "gdbcore.h" |
52 | #include "symfile.h" | |
5e2e79f8 | 53 | #include "objfiles.h" |
7d9884b9 | 54 | #include "obstack.h" |
7e258d18 | 55 | #include "buildsym.h" |
dac4929a | 56 | #include "stabsread.h" |
51b80b00 | 57 | #include "complaints.h" |
817bc7b8 | 58 | |
ac8cf67d PS |
59 | /* These are needed if the tm.h file does not contain the necessary |
60 | mips specific definitions. */ | |
61 | ||
62 | #ifndef MIPS_EFI_SYMBOL_NAME | |
63 | #define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__" | |
64 | #include "coff/sym.h" | |
65 | #include "coff/symconst.h" | |
66 | typedef struct mips_extra_func_info { | |
67 | long numargs; | |
68 | PDR pdr; | |
69 | } *mips_extra_func_info_t; | |
70 | #ifndef RA_REGNUM | |
71 | #define RA_REGNUM 0 | |
72 | #endif | |
73 | #ifndef FP0_REGNUM | |
74 | #define FP0_REGNUM 0 | |
75 | #endif | |
76 | #endif | |
77 | ||
817bc7b8 JG |
78 | #ifdef USG |
79 | #include <sys/types.h> | |
817bc7b8 JG |
80 | #endif |
81 | ||
7d9884b9 JG |
82 | #include <sys/param.h> |
83 | #include <sys/file.h> | |
84 | #include <sys/stat.h> | |
85f0a848 | 85 | #include <string.h> |
fa0bcaa3 | 86 | |
dac4929a SG |
87 | #include "gdb-stabs.h" |
88 | ||
6c2e7392 PS |
89 | #include "bfd.h" |
90 | ||
91 | #include "coff/internal.h" | |
6ac14d25 | 92 | #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */ |
e10a3052 | 93 | |
6c2e7392 PS |
94 | /* FIXME: coff/internal.h and aout/aout64.h both define N_ABS. We |
95 | want the definition from aout/aout64.h. */ | |
96 | #undef N_ABS | |
6c2e7392 PS |
97 | |
98 | #include "libaout.h" /* Private BFD a.out information. */ | |
7e258d18 | 99 | #include "aout/aout64.h" |
817bc7b8 | 100 | #include "aout/stab_gnu.h" /* STABS information */ |
6c2e7392 PS |
101 | |
102 | /* FIXME: libcoff.h and libaout.h both define a couple of macros. We | |
103 | don't use them. */ | |
104 | #undef exec_hdr | |
105 | #undef obj_sym_filepos | |
106 | ||
107 | #include "libcoff.h" /* Private BFD COFF information. */ | |
108 | #include "libecoff.h" /* Private BFD ECOFF information. */ | |
109 | ||
85f0a848 FF |
110 | #include "expression.h" |
111 | #include "language.h" /* Needed inside partial-stab.h */ | |
bd5635a1 | 112 | |
e7e02420 PS |
113 | /* Information is passed among various mipsread routines for accessing |
114 | symbol files. A pointer to this structure is kept in the sym_private | |
115 | field of the objfile struct. */ | |
116 | ||
117 | struct ecoff_symfile_info { | |
118 | struct mips_pending **pending_list; | |
119 | }; | |
120 | #define ECOFF_SYMFILE_INFO(o) ((struct ecoff_symfile_info *)((o)->sym_private)) | |
121 | #define ECOFF_PENDING_LIST(o) (ECOFF_SYMFILE_INFO(o)->pending_list) | |
122 | ||
123 | ||
6c2e7392 PS |
124 | /* Each partial symbol table entry contains a pointer to private data |
125 | for the read_symtab() function to use when expanding a partial | |
126 | symbol table entry to a full symbol table entry. | |
4a35d6e9 | 127 | |
6c2e7392 PS |
128 | For mipsread this structure contains the index of the FDR that this |
129 | psymtab represents and a pointer to the BFD that the psymtab was | |
130 | created from. */ | |
4a35d6e9 | 131 | |
d4ea2aba PB |
132 | #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private) |
133 | #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx) | |
6c2e7392 | 134 | #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd) |
4a35d6e9 | 135 | |
5f7b2142 ILT |
136 | struct symloc |
137 | { | |
4a35d6e9 | 138 | int fdr_idx; |
6c2e7392 PS |
139 | bfd *cur_bfd; |
140 | EXTR *extern_tab; /* Pointer to external symbols for this file. */ | |
141 | int extern_count; /* Size of extern_tab. */ | |
cbba020f | 142 | enum language pst_language; |
4a35d6e9 FF |
143 | }; |
144 | ||
bd5635a1 RP |
145 | /* Things we import explicitly from other modules */ |
146 | ||
5f7b2142 | 147 | extern int info_verbose; |
bd5635a1 | 148 | |
3eaebb75 | 149 | /* Various complaints about symbol reading that don't abort the process */ |
817bc7b8 JG |
150 | |
151 | struct complaint bad_file_number_complaint = | |
5f7b2142 | 152 | {"bad file number %d", 0, 0}; |
021959e2 | 153 | |
817bc7b8 | 154 | struct complaint index_complaint = |
5f7b2142 | 155 | {"bad aux index at symbol %s", 0, 0}; |
817bc7b8 JG |
156 | |
157 | struct complaint aux_index_complaint = | |
5f7b2142 | 158 | {"bad proc end in aux found from symbol %s", 0, 0}; |
817bc7b8 | 159 | |
6edd74ae | 160 | struct complaint block_index_complaint = |
5f7b2142 | 161 | {"bad aux index at block symbol %s", 0, 0}; |
6edd74ae | 162 | |
817bc7b8 | 163 | struct complaint unknown_ext_complaint = |
5f7b2142 | 164 | {"unknown external symbol %s", 0, 0}; |
bd5635a1 | 165 | |
817bc7b8 | 166 | struct complaint unknown_sym_complaint = |
5f7b2142 | 167 | {"unknown local symbol %s", 0, 0}; |
101f259c | 168 | |
817bc7b8 | 169 | struct complaint unknown_st_complaint = |
5f7b2142 | 170 | {"with type %d", 0, 0}; |
101f259c | 171 | |
817bc7b8 | 172 | struct complaint block_overflow_complaint = |
5f7b2142 | 173 | {"block containing %s overfilled", 0, 0}; |
3eaebb75 | 174 | |
817bc7b8 | 175 | struct complaint basic_type_complaint = |
cbba020f | 176 | {"cannot map MIPS basic type 0x%x for %s", 0, 0}; |
3eaebb75 | 177 | |
817bc7b8 | 178 | struct complaint unknown_type_qual_complaint = |
5f7b2142 | 179 | {"unknown type qualifier 0x%x", 0, 0}; |
3eaebb75 | 180 | |
817bc7b8 | 181 | struct complaint array_bitsize_complaint = |
5f7b2142 | 182 | {"size of array target type not known, assuming %d bits", 0, 0}; |
3eaebb75 | 183 | |
817bc7b8 | 184 | struct complaint bad_tag_guess_complaint = |
5f7b2142 | 185 | {"guessed tag type of %s incorrectly", 0, 0}; |
817bc7b8 JG |
186 | |
187 | struct complaint block_member_complaint = | |
5f7b2142 | 188 | {"declaration block contains unhandled symbol type %d", 0, 0}; |
817bc7b8 JG |
189 | |
190 | struct complaint stEnd_complaint = | |
5f7b2142 | 191 | {"stEnd with storage class %d not handled", 0, 0}; |
817bc7b8 JG |
192 | |
193 | struct complaint unknown_mips_symtype_complaint = | |
5f7b2142 | 194 | {"unknown symbol type 0x%x", 0, 0}; |
817bc7b8 JG |
195 | |
196 | struct complaint stab_unknown_complaint = | |
5f7b2142 | 197 | {"unknown stabs symbol %s", 0, 0}; |
817bc7b8 JG |
198 | |
199 | struct complaint pdr_for_nonsymbol_complaint = | |
5f7b2142 | 200 | {"PDR for %s, but no symbol", 0, 0}; |
817bc7b8 JG |
201 | |
202 | struct complaint pdr_static_symbol_complaint = | |
5f7b2142 | 203 | {"can't handle PDR for static proc at 0x%x", 0, 0}; |
c55e6167 | 204 | |
e157305c PS |
205 | struct complaint bad_setjmp_pdr_complaint = |
206 | {"fixing bad setjmp PDR from libc", 0, 0}; | |
207 | ||
6ac14d25 | 208 | struct complaint bad_fbitfield_complaint = |
cbba020f | 209 | {"can't handle TIR fBitfield for %s", 0, 0}; |
6ac14d25 PS |
210 | |
211 | struct complaint bad_rfd_entry_complaint = | |
cbba020f | 212 | {"bad rfd entry for %s: file %d, index %d", 0, 0}; |
6ac14d25 PS |
213 | |
214 | struct complaint unexpected_type_code_complaint = | |
215 | {"unexpected type code for %s", 0, 0}; | |
216 | ||
3eaebb75 SG |
217 | /* Macros and extra defs */ |
218 | ||
219 | /* Already-parsed symbols are marked specially */ | |
bd5635a1 RP |
220 | |
221 | #define stParsed stType | |
222 | ||
223 | /* Puns: hard to find whether -g was used and how */ | |
224 | ||
225 | #define MIN_GLEVEL GLEVEL_0 | |
226 | #define compare_glevel(a,b) \ | |
227 | (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \ | |
228 | ((b) == GLEVEL_3) ? -1 : (int)((b) - (a))) | |
e072c738 JG |
229 | \f |
230 | /* Things that really are local to this module */ | |
231 | ||
c4413e2c FF |
232 | /* Remember what we deduced to be the source language of this psymtab. */ |
233 | ||
234 | static enum language psymtab_language = language_unknown; | |
235 | ||
6c2e7392 | 236 | /* Current BFD. */ |
3eaebb75 | 237 | |
6c2e7392 | 238 | static bfd *cur_bfd; |
3eaebb75 | 239 | |
e072c738 JG |
240 | /* Pointer to current file decriptor record, and its index */ |
241 | ||
5f7b2142 ILT |
242 | static FDR *cur_fdr; |
243 | static int cur_fd; | |
e072c738 JG |
244 | |
245 | /* Index of current symbol */ | |
246 | ||
5f7b2142 | 247 | static int cur_sdx; |
e072c738 JG |
248 | |
249 | /* Note how much "debuggable" this image is. We would like | |
250 | to see at least one FDR with full symbols */ | |
251 | ||
252 | static max_gdbinfo; | |
253 | static max_glevel; | |
254 | ||
255 | /* When examining .o files, report on undefined symbols */ | |
256 | ||
257 | static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs; | |
258 | ||
7e258d18 PB |
259 | /* Pseudo symbol to use when putting stabs into the symbol table. */ |
260 | ||
c55e6167 | 261 | static char stabs_symbol[] = STABS_SYMBOL; |
7e258d18 | 262 | |
e072c738 JG |
263 | /* Extra builtin types */ |
264 | ||
265 | struct type *builtin_type_complex; | |
266 | struct type *builtin_type_double_complex; | |
267 | struct type *builtin_type_fixed_dec; | |
268 | struct type *builtin_type_float_dec; | |
269 | struct type *builtin_type_string; | |
270 | ||
3eaebb75 | 271 | /* Forward declarations */ |
e072c738 | 272 | |
d747e0af | 273 | static void |
dac4929a | 274 | read_mips_symtab PARAMS ((struct objfile *, struct section_offsets *)); |
84ffdec2 JG |
275 | |
276 | static void | |
6c2e7392 | 277 | read_the_mips_symtab PARAMS ((bfd *)); |
84ffdec2 JG |
278 | |
279 | static int | |
e10a3052 | 280 | upgrade_type PARAMS ((struct type **, int, union aux_ext *, int)); |
84ffdec2 JG |
281 | |
282 | static void | |
6c2e7392 | 283 | parse_partial_symbols PARAMS ((struct objfile *, |
dac4929a | 284 | struct section_offsets *)); |
d747e0af MT |
285 | |
286 | static int | |
e5578a31 | 287 | cross_ref PARAMS ((union aux_ext *, struct type **, enum type_code, char **, |
cbba020f | 288 | int, char *)); |
84ffdec2 JG |
289 | |
290 | static void | |
291 | fixup_sigtramp PARAMS ((void)); | |
292 | ||
293 | static struct symbol * | |
294 | new_symbol PARAMS ((char *)); | |
295 | ||
296 | static struct type * | |
297 | new_type PARAMS ((char *)); | |
298 | ||
299 | static struct block * | |
300 | new_block PARAMS ((int)); | |
301 | ||
302 | static struct symtab * | |
303 | new_symtab PARAMS ((char *, int, int, struct objfile *)); | |
304 | ||
305 | static struct linetable * | |
306 | new_linetable PARAMS ((int)); | |
307 | ||
308 | static struct blockvector * | |
309 | new_bvect PARAMS ((int)); | |
310 | ||
311 | static struct type * | |
cbba020f | 312 | parse_type PARAMS ((union aux_ext *, int *, int, char *)); |
84ffdec2 JG |
313 | |
314 | static struct symbol * | |
315 | mylookup_symbol PARAMS ((char *, struct block *, enum namespace, | |
316 | enum address_class)); | |
317 | ||
318 | static struct block * | |
319 | shrink_block PARAMS ((struct block *, struct symtab *)); | |
320 | ||
321 | static PTR | |
322 | xzalloc PARAMS ((unsigned int)); | |
d747e0af MT |
323 | |
324 | static void | |
84ffdec2 | 325 | sort_blocks PARAMS ((struct symtab *)); |
d747e0af MT |
326 | |
327 | static int | |
391ca579 | 328 | compare_blocks PARAMS ((const void *, const void *)); |
84ffdec2 JG |
329 | |
330 | static struct partial_symtab * | |
331 | new_psymtab PARAMS ((char *, struct objfile *)); | |
332 | ||
d747e0af | 333 | static void |
84ffdec2 | 334 | psymtab_to_symtab_1 PARAMS ((struct partial_symtab *, char *)); |
c55e6167 | 335 | |
84ffdec2 JG |
336 | static void |
337 | add_block PARAMS ((struct block *, struct symtab *)); | |
338 | ||
339 | static void | |
340 | add_symbol PARAMS ((struct symbol *, struct block *)); | |
341 | ||
342 | static int | |
343 | add_line PARAMS ((struct linetable *, int, CORE_ADDR, int)); | |
344 | ||
345 | static struct linetable * | |
346 | shrink_linetable PARAMS ((struct linetable *)); | |
347 | ||
348 | static char * | |
349 | mips_next_symbol_text PARAMS ((void)); | |
bd5635a1 RP |
350 | \f |
351 | /* Things we export to other modules */ | |
352 | ||
bd5635a1 | 353 | /* Address bounds for the signal trampoline in inferior, if any */ |
101f259c | 354 | /* FIXME: Nothing really seems to use this. Why is it here? */ |
bd5635a1 RP |
355 | |
356 | CORE_ADDR sigtramp_address, sigtramp_end; | |
357 | ||
4ad1963e | 358 | static void |
84ffdec2 JG |
359 | mipscoff_new_init (ignore) |
360 | struct objfile *ignore; | |
bd5635a1 | 361 | { |
e7ff735c | 362 | sigtramp_address = 0; |
0b0d6c3f PS |
363 | stabsread_new_init (); |
364 | buildsym_new_init (); | |
bd5635a1 RP |
365 | } |
366 | ||
4ad1963e | 367 | static void |
80d68b1d FF |
368 | mipscoff_symfile_init (objfile) |
369 | struct objfile *objfile; | |
bd5635a1 | 370 | { |
5f7b2142 | 371 | if (objfile->sym_private != NULL) |
80d68b1d | 372 | { |
5f7b2142 | 373 | mfree (objfile->md, objfile->sym_private); |
80d68b1d | 374 | } |
e7e02420 PS |
375 | objfile->sym_private = (PTR) |
376 | xmmalloc (objfile->md, sizeof (struct ecoff_symfile_info)); | |
bd5635a1 RP |
377 | } |
378 | ||
4ad1963e | 379 | static void |
dac4929a | 380 | mipscoff_symfile_read (objfile, section_offsets, mainline) |
80d68b1d | 381 | struct objfile *objfile; |
dac4929a | 382 | struct section_offsets *section_offsets; |
bd5635a1 RP |
383 | int mainline; |
384 | { | |
6ac14d25 PS |
385 | struct cleanup * back_to; |
386 | ||
021959e2 | 387 | init_minimal_symbol_collection (); |
6ac14d25 | 388 | back_to = make_cleanup (discard_minimal_symbols, 0); |
bd5635a1 RP |
389 | |
390 | /* Now that the executable file is positioned at symbol table, | |
391 | process it and define symbols accordingly. */ | |
392 | ||
5f7b2142 | 393 | read_mips_symtab (objfile, section_offsets); |
bd5635a1 | 394 | |
021959e2 JG |
395 | /* Install any minimal symbols that have been collected as the current |
396 | minimal symbols for this objfile. */ | |
bd5635a1 | 397 | |
80d68b1d | 398 | install_minimal_symbols (objfile); |
6ac14d25 PS |
399 | |
400 | do_cleanups (back_to); | |
bd5635a1 | 401 | } |
817bc7b8 | 402 | |
80d68b1d FF |
403 | /* Perform any local cleanups required when we are done with a particular |
404 | objfile. I.E, we are in the process of discarding all symbol information | |
405 | for an objfile, freeing up all memory held for it, and unlinking the | |
406 | objfile struct from the global list of known objfiles. */ | |
407 | ||
408 | static void | |
409 | mipscoff_symfile_finish (objfile) | |
410 | struct objfile *objfile; | |
411 | { | |
5f7b2142 | 412 | if (objfile->sym_private != NULL) |
80d68b1d | 413 | { |
5f7b2142 | 414 | mfree (objfile->md, objfile->sym_private); |
80d68b1d FF |
415 | } |
416 | ||
6c2e7392 | 417 | cur_bfd = 0; |
80d68b1d FF |
418 | } |
419 | ||
d747e0af | 420 | /* Allocate zeroed memory */ |
bd5635a1 | 421 | |
84ffdec2 | 422 | static PTR |
5f7b2142 | 423 | xzalloc (size) |
e10a3052 | 424 | unsigned int size; |
bd5635a1 | 425 | { |
51b57ded | 426 | PTR p = xmalloc (size); |
bd5635a1 | 427 | |
4ed3a9ea | 428 | memset (p, 0, size); |
51b57ded | 429 | return p; |
bd5635a1 RP |
430 | } |
431 | ||
432 | /* Exported procedure: Builds a symtab from the PST partial one. | |
433 | Restores the environment in effect when PST was created, delegates | |
434 | most of the work to an ancillary procedure, and sorts | |
435 | and reorders the symtab list at the end */ | |
436 | ||
3eaebb75 | 437 | static void |
5f7b2142 ILT |
438 | mipscoff_psymtab_to_symtab (pst) |
439 | struct partial_symtab *pst; | |
bd5635a1 | 440 | { |
bd5635a1 | 441 | |
5f7b2142 ILT |
442 | if (!pst) |
443 | return; | |
bd5635a1 | 444 | |
5f7b2142 ILT |
445 | if (info_verbose) |
446 | { | |
447 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |
448 | fflush (stdout); | |
449 | } | |
bd5635a1 | 450 | |
5f7b2142 | 451 | next_symbol_text_func = mips_next_symbol_text; |
c55e6167 | 452 | |
5f7b2142 | 453 | psymtab_to_symtab_1 (pst, pst->filename); |
bd5635a1 | 454 | |
5f7b2142 ILT |
455 | /* Match with global symbols. This only needs to be done once, |
456 | after all of the symtabs and dependencies have been read in. */ | |
457 | scan_file_globals (pst->objfile); | |
bd5635a1 | 458 | |
5f7b2142 ILT |
459 | if (info_verbose) |
460 | printf_filtered ("done.\n"); | |
bd5635a1 RP |
461 | } |
462 | ||
463 | /* Exported procedure: Is PC in the signal trampoline code */ | |
464 | ||
b8c50f09 | 465 | int |
5f7b2142 ILT |
466 | in_sigtramp (pc, ignore) |
467 | CORE_ADDR pc; | |
468 | char *ignore; /* function name */ | |
bd5635a1 | 469 | { |
5f7b2142 ILT |
470 | if (sigtramp_address == 0) |
471 | fixup_sigtramp (); | |
472 | return (pc >= sigtramp_address && pc < sigtramp_end); | |
bd5635a1 | 473 | } |
bd5635a1 RP |
474 | \f |
475 | /* File-level interface functions */ | |
476 | ||
6c2e7392 | 477 | /* Read the symtab information from file ABFD into memory. */ |
d747e0af MT |
478 | |
479 | static void | |
6c2e7392 | 480 | read_the_mips_symtab (abfd) |
5f7b2142 | 481 | bfd *abfd; |
bd5635a1 | 482 | { |
6c2e7392 PS |
483 | if (ecoff_slurp_symbolic_info (abfd) == false) |
484 | error ("Error reading symbol table: %s", bfd_errmsg (bfd_error)); | |
bd5635a1 RP |
485 | } |
486 | ||
bd5635a1 RP |
487 | /* Find a file descriptor given its index RF relative to a file CF */ |
488 | ||
3eaebb75 SG |
489 | static FDR * |
490 | get_rfd (cf, rf) | |
5f7b2142 | 491 | int cf, rf; |
bd5635a1 | 492 | { |
6c2e7392 | 493 | FDR *fdrs; |
5f7b2142 | 494 | register FDR *f; |
6c2e7392 | 495 | RFDT rfd; |
5f7b2142 | 496 | |
6c2e7392 PS |
497 | fdrs = ecoff_data (cur_bfd)->fdr; |
498 | f = fdrs + cf; | |
5f7b2142 ILT |
499 | /* Object files do not have the RFD table, all refs are absolute */ |
500 | if (f->rfdBase == 0) | |
6c2e7392 | 501 | return fdrs + rf; |
6ac14d25 PS |
502 | (*ecoff_backend (cur_bfd)->swap_rfd_in) |
503 | (cur_bfd, | |
504 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
505 | + (f->rfdBase + rf) * ecoff_backend (cur_bfd)->external_rfd_size), | |
506 | &rfd); | |
6c2e7392 | 507 | return fdrs + rfd; |
bd5635a1 RP |
508 | } |
509 | ||
510 | /* Return a safer print NAME for a file descriptor */ | |
511 | ||
3eaebb75 | 512 | static char * |
6c2e7392 PS |
513 | fdr_name (f) |
514 | FDR *f; | |
bd5635a1 | 515 | { |
6c2e7392 | 516 | if (f->rss == -1) |
5f7b2142 | 517 | return "<stripped file>"; |
6c2e7392 | 518 | if (f->rss == 0) |
5f7b2142 | 519 | return "<NFY>"; |
6c2e7392 | 520 | return ecoff_data (cur_bfd)->ss + f->issBase + f->rss; |
bd5635a1 RP |
521 | } |
522 | ||
523 | ||
dac4929a SG |
524 | /* Read in and parse the symtab of the file OBJFILE. Symbols from |
525 | different sections are relocated via the SECTION_OFFSETS. */ | |
bd5635a1 | 526 | |
d747e0af | 527 | static void |
dac4929a | 528 | read_mips_symtab (objfile, section_offsets) |
5f7b2142 ILT |
529 | struct objfile *objfile; |
530 | struct section_offsets *section_offsets; | |
bd5635a1 | 531 | { |
6c2e7392 | 532 | cur_bfd = objfile->obfd; |
bd5635a1 | 533 | |
6c2e7392 | 534 | read_the_mips_symtab (objfile->obfd); |
bd5635a1 | 535 | |
6c2e7392 | 536 | parse_partial_symbols (objfile, section_offsets); |
bd5635a1 | 537 | |
7e258d18 | 538 | #if 0 |
6c2e7392 PS |
539 | /* Check to make sure file was compiled with -g. If not, warn the |
540 | user of this limitation. */ | |
5f7b2142 ILT |
541 | if (compare_glevel (max_glevel, GLEVEL_2) < 0) |
542 | { | |
543 | if (max_gdbinfo == 0) | |
6c2e7392 | 544 | printf ("\n%s not compiled with -g, debugging support is limited.\n", |
5f7b2142 | 545 | objfile->name); |
6c2e7392 | 546 | printf ("You should compile with -g2 or -g3 for best debugging support.\n"); |
5f7b2142 ILT |
547 | fflush (stdout); |
548 | } | |
7e258d18 | 549 | #endif |
bd5635a1 | 550 | } |
bd5635a1 RP |
551 | \f |
552 | /* Local utilities */ | |
553 | ||
bd5635a1 RP |
554 | /* Map of FDR indexes to partial symtabs */ |
555 | ||
5f7b2142 ILT |
556 | struct pst_map |
557 | { | |
558 | struct partial_symtab *pst; /* the psymtab proper */ | |
559 | int n_globals; /* exported globals (external symbols) */ | |
560 | int globals_offset; /* cumulative */ | |
d4ea2aba | 561 | }; |
bd5635a1 RP |
562 | |
563 | ||
564 | /* Utility stack, used to nest procedures and blocks properly. | |
565 | It is a doubly linked list, to avoid too many alloc/free. | |
566 | Since we might need it quite a few times it is NOT deallocated | |
567 | after use. */ | |
568 | ||
5f7b2142 ILT |
569 | static struct parse_stack |
570 | { | |
571 | struct parse_stack *next, *prev; | |
572 | struct symtab *cur_st; /* Current symtab. */ | |
573 | struct block *cur_block; /* Block in it. */ | |
574 | int blocktype; /* What are we parsing. */ | |
575 | int maxsyms; /* Max symbols in this block. */ | |
576 | struct type *cur_type; /* Type we parse fields for. */ | |
577 | int cur_field; /* Field number in cur_type. */ | |
578 | int procadr; /* Start addres of this procedure */ | |
579 | int numargs; /* Its argument count */ | |
6c2e7392 PS |
580 | } |
581 | ||
582 | *top_stack; /* Top stack ptr */ | |
bd5635a1 RP |
583 | |
584 | ||
585 | /* Enter a new lexical context */ | |
586 | ||
4ad1963e | 587 | static void |
5f7b2142 | 588 | push_parse_stack () |
bd5635a1 | 589 | { |
5f7b2142 ILT |
590 | struct parse_stack *new; |
591 | ||
592 | /* Reuse frames if possible */ | |
593 | if (top_stack && top_stack->prev) | |
594 | new = top_stack->prev; | |
595 | else | |
596 | new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack)); | |
597 | /* Initialize new frame with previous content */ | |
598 | if (top_stack) | |
599 | { | |
600 | register struct parse_stack *prev = new->prev; | |
bd5635a1 | 601 | |
5f7b2142 ILT |
602 | *new = *top_stack; |
603 | top_stack->prev = new; | |
604 | new->prev = prev; | |
605 | new->next = top_stack; | |
606 | } | |
607 | top_stack = new; | |
bd5635a1 RP |
608 | } |
609 | ||
610 | /* Exit a lexical context */ | |
611 | ||
4ad1963e | 612 | static void |
5f7b2142 | 613 | pop_parse_stack () |
bd5635a1 | 614 | { |
5f7b2142 ILT |
615 | if (!top_stack) |
616 | return; | |
617 | if (top_stack->next) | |
618 | top_stack = top_stack->next; | |
bd5635a1 RP |
619 | } |
620 | ||
621 | ||
622 | /* Cross-references might be to things we haven't looked at | |
623 | yet, e.g. type references. To avoid too many type | |
624 | duplications we keep a quick fixup table, an array | |
625 | of lists of references indexed by file descriptor */ | |
626 | ||
e7e02420 | 627 | struct mips_pending |
5f7b2142 ILT |
628 | { |
629 | struct mips_pending *next; /* link */ | |
6ac14d25 | 630 | char *s; /* the unswapped symbol */ |
5f7b2142 | 631 | struct type *t; /* its partial type descriptor */ |
e7e02420 | 632 | }; |
bd5635a1 RP |
633 | |
634 | ||
635 | /* Check whether we already saw symbol SH in file FH as undefined */ | |
636 | ||
4ad1963e | 637 | static struct mips_pending * |
5f7b2142 ILT |
638 | is_pending_symbol (fh, sh) |
639 | FDR *fh; | |
6ac14d25 | 640 | char *sh; |
bd5635a1 | 641 | { |
6c2e7392 | 642 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 | 643 | register struct mips_pending *p; |
e7e02420 | 644 | struct mips_pending **pending_list = ECOFF_PENDING_LIST (current_objfile); |
5f7b2142 ILT |
645 | |
646 | /* Linear search is ok, list is typically no more than 10 deep */ | |
647 | for (p = pending_list[f_idx]; p; p = p->next) | |
648 | if (p->s == sh) | |
649 | break; | |
650 | return p; | |
bd5635a1 RP |
651 | } |
652 | ||
bd5635a1 RP |
653 | /* Add a new undef symbol SH of type T */ |
654 | ||
4ad1963e | 655 | static void |
5f7b2142 ILT |
656 | add_pending (fh, sh, t) |
657 | FDR *fh; | |
6ac14d25 | 658 | char *sh; |
5f7b2142 | 659 | struct type *t; |
bd5635a1 | 660 | { |
6c2e7392 | 661 | int f_idx = fh - ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
662 | struct mips_pending *p = is_pending_symbol (fh, sh); |
663 | ||
664 | /* Make sure we do not make duplicates */ | |
665 | if (!p) | |
666 | { | |
e7e02420 PS |
667 | struct mips_pending **pending_list = ECOFF_PENDING_LIST (current_objfile); |
668 | ||
669 | p = ((struct mips_pending *) | |
670 | obstack_alloc (¤t_objfile->psymbol_obstack, | |
671 | sizeof (struct mips_pending))); | |
5f7b2142 ILT |
672 | p->s = sh; |
673 | p->t = t; | |
674 | p->next = pending_list[f_idx]; | |
675 | pending_list[f_idx] = p; | |
676 | } | |
bd5635a1 | 677 | } |
bd5635a1 | 678 | \f |
5f7b2142 | 679 | |
bd5635a1 RP |
680 | /* Parsing Routines proper. */ |
681 | ||
682 | /* Parse a single symbol. Mostly just make up a GDB symbol for it. | |
683 | For blocks, procedures and types we open a new lexical context. | |
6c2e7392 PS |
684 | This is basically just a big switch on the symbol's type. Argument |
685 | AX is the base pointer of aux symbols for this file (fh->iauxBase). | |
686 | EXT_SH points to the unswapped symbol, which is needed for struct, | |
687 | union, etc., types; it is NULL for an EXTR. BIGEND says whether | |
688 | aux symbols are big-endian or little-endian. Return count of | |
689 | SYMR's handled (normally one). | |
690 | ||
691 | FIXME: This modifies the symbol, but the only way we have to save | |
692 | the modified information is to stuff it back into the BFD data. */ | |
bd5635a1 | 693 | |
7e258d18 | 694 | static int |
6c2e7392 | 695 | parse_symbol (sh, ax, ext_sh, bigend) |
5f7b2142 ILT |
696 | SYMR *sh; |
697 | union aux_ext *ax; | |
6ac14d25 | 698 | char *ext_sh; |
5f7b2142 | 699 | int bigend; |
bd5635a1 | 700 | { |
6ac14d25 PS |
701 | const bfd_size_type external_sym_size |
702 | = ecoff_backend (cur_bfd)->external_sym_size; | |
703 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) = | |
704 | ecoff_backend (cur_bfd)->swap_sym_in; | |
5f7b2142 ILT |
705 | char *name; |
706 | struct symbol *s; | |
707 | struct block *b; | |
6c2e7392 | 708 | struct mips_pending *pend; |
5f7b2142 ILT |
709 | struct type *t; |
710 | struct field *f; | |
711 | int count = 1; | |
5f7b2142 ILT |
712 | enum address_class class; |
713 | TIR tir; | |
714 | ||
6ac14d25 | 715 | if (ext_sh == (char *) NULL) |
6c2e7392 PS |
716 | name = ecoff_data (cur_bfd)->ssext + sh->iss; |
717 | else | |
718 | name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh->iss; | |
719 | ||
5f7b2142 ILT |
720 | switch (sh->st) |
721 | { | |
5f7b2142 ILT |
722 | case stNil: |
723 | break; | |
724 | ||
725 | case stGlobal: /* external symbol, goes into global block */ | |
726 | class = LOC_STATIC; | |
727 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
728 | GLOBAL_BLOCK); | |
6c2e7392 | 729 | s = new_symbol (name); |
5f7b2142 ILT |
730 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; |
731 | goto data; | |
732 | ||
733 | case stStatic: /* static data, goes into current block. */ | |
734 | class = LOC_STATIC; | |
735 | b = top_stack->cur_block; | |
6c2e7392 | 736 | s = new_symbol (name); |
e7ff735c JK |
737 | if (sh->sc == scCommon) |
738 | { | |
739 | /* It is a FORTRAN common block. At least for SGI Fortran the | |
740 | address is not in the symbol; we need to fix it later in | |
741 | scan_file_globals. */ | |
742 | int bucket = hashname (SYMBOL_NAME (s)); | |
743 | SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket]; | |
744 | global_sym_chain[bucket] = s; | |
745 | } | |
746 | else | |
747 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
5f7b2142 ILT |
748 | goto data; |
749 | ||
750 | case stLocal: /* local variable, goes into current block */ | |
751 | if (sh->sc == scRegister) | |
752 | { | |
753 | class = LOC_REGISTER; | |
754 | if (sh->value > 31) | |
755 | sh->value += FP0_REGNUM - 32; | |
756 | } | |
757 | else | |
758 | class = LOC_LOCAL; | |
759 | b = top_stack->cur_block; | |
6c2e7392 | 760 | s = new_symbol (name); |
5f7b2142 ILT |
761 | SYMBOL_VALUE (s) = sh->value; |
762 | ||
763 | data: /* Common code for symbols describing data */ | |
764 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
765 | SYMBOL_CLASS (s) = class; | |
766 | add_symbol (s, b); | |
767 | ||
768 | /* Type could be missing in a number of cases */ | |
769 | if (sh->sc == scUndefined || sh->sc == scNil || | |
770 | sh->index == 0xfffff) | |
771 | SYMBOL_TYPE (s) = builtin_type_int; /* undefined? */ | |
772 | else | |
cbba020f | 773 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend, name); |
5f7b2142 ILT |
774 | /* Value of a data symbol is its memory address */ |
775 | break; | |
776 | ||
777 | case stParam: /* arg to procedure, goes into current block */ | |
778 | max_gdbinfo++; | |
779 | top_stack->numargs++; | |
780 | ||
5f7b2142 ILT |
781 | /* Special GNU C++ name. */ |
782 | if (name[0] == CPLUS_MARKER && name[1] == 't' && name[2] == 0) | |
783 | name = "this"; /* FIXME, not alloc'd in obstack */ | |
784 | s = new_symbol (name); | |
785 | ||
786 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
e7ff735c | 787 | switch (sh->sc) |
5f7b2142 | 788 | { |
e7ff735c JK |
789 | case scRegister: |
790 | /* Pass by value in register. */ | |
791 | SYMBOL_CLASS(s) = LOC_REGPARM; | |
5f7b2142 | 792 | if (sh->value > 31) |
e7ff735c JK |
793 | sh->value += FP0_REGNUM-32; |
794 | break; | |
795 | case scVar: | |
796 | /* Pass by reference on stack. */ | |
797 | SYMBOL_CLASS(s) = LOC_REF_ARG; | |
798 | break; | |
799 | case scVarRegister: | |
800 | /* Pass by reference in register. */ | |
801 | SYMBOL_CLASS(s) = LOC_REGPARM_ADDR; | |
802 | break; | |
803 | default: | |
804 | /* Pass by value on stack. */ | |
805 | SYMBOL_CLASS(s) = LOC_ARG; | |
806 | break; | |
5f7b2142 | 807 | } |
5f7b2142 | 808 | SYMBOL_VALUE (s) = sh->value; |
cbba020f | 809 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend, name); |
5f7b2142 | 810 | add_symbol (s, top_stack->cur_block); |
0c4d2cc2 | 811 | #if 0 |
5f7b2142 ILT |
812 | /* FIXME: This has not been tested. See dbxread.c */ |
813 | /* Add the type of this parameter to the function/procedure | |
0c4d2cc2 | 814 | type of this block. */ |
5f7b2142 | 815 | add_param_to_type (&top_stack->cur_block->function->type, s); |
0c4d2cc2 | 816 | #endif |
5f7b2142 ILT |
817 | break; |
818 | ||
819 | case stLabel: /* label, goes into current block */ | |
6c2e7392 | 820 | s = new_symbol (name); |
5f7b2142 ILT |
821 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; /* so that it can be used */ |
822 | SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused */ | |
823 | SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value; | |
824 | SYMBOL_TYPE (s) = builtin_type_int; | |
825 | add_symbol (s, top_stack->cur_block); | |
826 | break; | |
827 | ||
828 | case stProc: /* Procedure, usually goes into global block */ | |
6ac14d25 | 829 | case stStaticProc: /* Static procedure, goes into current block */ |
6c2e7392 | 830 | s = new_symbol (name); |
5f7b2142 ILT |
831 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
832 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
833 | /* Type of the return value */ | |
834 | if (sh->sc == scUndefined || sh->sc == scNil) | |
835 | t = builtin_type_int; | |
836 | else | |
cbba020f | 837 | t = parse_type (ax + sh->index + 1, 0, bigend, name); |
5f7b2142 ILT |
838 | b = top_stack->cur_block; |
839 | if (sh->st == stProc) | |
840 | { | |
841 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
842 | /* The next test should normally be true, | |
0c4d2cc2 JG |
843 | but provides a hook for nested functions |
844 | (which we don't want to make global). */ | |
5f7b2142 ILT |
845 | if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) |
846 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
847 | } | |
848 | add_symbol (s, b); | |
bd5635a1 | 849 | |
5f7b2142 | 850 | /* Make a type for the procedure itself */ |
0c4d2cc2 | 851 | #if 0 |
5f7b2142 ILT |
852 | /* FIXME: This has not been tested yet! See dbxread.c */ |
853 | /* Generate a template for the type of this function. The | |
854 | types of the arguments will be added as we read the symbol | |
855 | table. */ | |
ade40d31 | 856 | memcpy (lookup_function_type (t), SYMBOL_TYPE (s), sizeof (struct type)); |
0c4d2cc2 | 857 | #else |
5f7b2142 | 858 | SYMBOL_TYPE (s) = lookup_function_type (t); |
0c4d2cc2 | 859 | #endif |
bd5635a1 | 860 | |
5f7b2142 ILT |
861 | /* Create and enter a new lexical context */ |
862 | b = new_block (top_stack->maxsyms); | |
863 | SYMBOL_BLOCK_VALUE (s) = b; | |
864 | BLOCK_FUNCTION (b) = s; | |
865 | BLOCK_START (b) = BLOCK_END (b) = sh->value; | |
866 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
867 | add_block (b, top_stack->cur_st); | |
868 | ||
869 | /* Not if we only have partial info */ | |
870 | if (sh->sc == scUndefined || sh->sc == scNil) | |
871 | break; | |
872 | ||
873 | push_parse_stack (); | |
874 | top_stack->cur_block = b; | |
875 | top_stack->blocktype = sh->st; | |
876 | top_stack->cur_type = SYMBOL_TYPE (s); | |
877 | top_stack->cur_field = -1; | |
878 | top_stack->procadr = sh->value; | |
879 | top_stack->numargs = 0; | |
880 | ||
881 | sh->value = (long) SYMBOL_TYPE (s); | |
6ac14d25 | 882 | sh->st = stParsed; |
5f7b2142 ILT |
883 | break; |
884 | ||
885 | /* Beginning of code for structure, union, and enum definitions. | |
817bc7b8 | 886 | They all share a common set of local variables, defined here. */ |
5f7b2142 ILT |
887 | { |
888 | enum type_code type_code; | |
6ac14d25 | 889 | char *ext_tsym; |
5f7b2142 ILT |
890 | int nfields; |
891 | long max_value; | |
892 | struct field *f; | |
893 | ||
894 | case stStruct: /* Start a block defining a struct type */ | |
895 | type_code = TYPE_CODE_STRUCT; | |
896 | goto structured_common; | |
897 | ||
898 | case stUnion: /* Start a block defining a union type */ | |
899 | type_code = TYPE_CODE_UNION; | |
900 | goto structured_common; | |
901 | ||
902 | case stEnum: /* Start a block defining an enum type */ | |
903 | type_code = TYPE_CODE_ENUM; | |
904 | goto structured_common; | |
905 | ||
906 | case stBlock: /* Either a lexical block, or some type */ | |
e7ff735c | 907 | if (sh->sc != scInfo && sh->sc != scCommon) |
5f7b2142 ILT |
908 | goto case_stBlock_code; /* Lexical block */ |
909 | ||
910 | type_code = TYPE_CODE_UNDEF; /* We have a type. */ | |
911 | ||
912 | /* Common code for handling struct, union, enum, and/or as-yet- | |
913 | unknown-type blocks of info about structured data. `type_code' | |
914 | has been set to the proper TYPE_CODE, if we know it. */ | |
915 | structured_common: | |
916 | push_parse_stack (); | |
917 | top_stack->blocktype = stBlock; | |
918 | ||
6c2e7392 | 919 | s = new_symbol (name); |
5f7b2142 ILT |
920 | SYMBOL_NAMESPACE (s) = STRUCT_NAMESPACE; |
921 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
922 | SYMBOL_VALUE (s) = 0; | |
923 | add_symbol (s, top_stack->cur_block); | |
924 | ||
925 | /* First count the number of fields and the highest value. */ | |
926 | nfields = 0; | |
927 | max_value = 0; | |
6ac14d25 PS |
928 | for (ext_tsym = ext_sh + external_sym_size; |
929 | ; | |
930 | ext_tsym += external_sym_size) | |
5f7b2142 | 931 | { |
6c2e7392 PS |
932 | SYMR tsym; |
933 | ||
6ac14d25 | 934 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 | 935 | |
1c8961dd | 936 | switch (tsym.st) |
5f7b2142 | 937 | { |
1c8961dd JK |
938 | case stEnd: |
939 | goto end_of_fields; | |
940 | ||
941 | case stMember: | |
5f7b2142 ILT |
942 | if (nfields == 0 && type_code == TYPE_CODE_UNDEF) |
943 | /* If the type of the member is Nil (or Void), | |
944 | without qualifiers, assume the tag is an | |
945 | enumeration. */ | |
6c2e7392 | 946 | if (tsym.index == indexNil) |
5f7b2142 ILT |
947 | type_code = TYPE_CODE_ENUM; |
948 | else | |
949 | { | |
950 | ecoff_swap_tir_in (bigend, | |
6c2e7392 | 951 | &ax[tsym.index].a_ti, |
5f7b2142 ILT |
952 | &tir); |
953 | if ((tir.bt == btNil || tir.bt == btVoid) | |
954 | && tir.tq0 == tqNil) | |
955 | type_code = TYPE_CODE_ENUM; | |
817bc7b8 | 956 | } |
5f7b2142 | 957 | nfields++; |
6c2e7392 PS |
958 | if (tsym.value > max_value) |
959 | max_value = tsym.value; | |
1c8961dd JK |
960 | break; |
961 | ||
1c8961dd JK |
962 | case stBlock: |
963 | case stUnion: | |
964 | case stEnum: | |
965 | case stStruct: | |
966 | case stParsed: | |
967 | { | |
968 | #if 0 | |
969 | /* This is a no-op; is it trying to tell us something | |
970 | we should be checking? */ | |
971 | if (tsym.sc == scVariant); /*UNIMPLEMENTED*/ | |
972 | #endif | |
973 | if (tsym.index != 0) | |
974 | { | |
975 | /* This is something like a struct within a | |
976 | struct. Skip over the fields of the inner | |
977 | struct. The -1 is because the for loop will | |
978 | increment ext_tsym. */ | |
6ac14d25 PS |
979 | ext_tsym = ((char *) ecoff_data (cur_bfd)->external_sym |
980 | + ((cur_fdr->isymBase + tsym.index - 1) | |
981 | * external_sym_size)); | |
1c8961dd JK |
982 | } |
983 | } | |
984 | break; | |
985 | ||
6ac14d25 PS |
986 | case stTypedef: |
987 | /* mips cc puts out a typedef for struct x if it is not yet | |
988 | defined when it encounters | |
989 | struct y { struct x *xp; }; | |
990 | Just ignore it. */ | |
991 | break; | |
992 | ||
1c8961dd JK |
993 | default: |
994 | complain (&block_member_complaint, tsym.st); | |
5f7b2142 | 995 | } |
5f7b2142 | 996 | } |
1c8961dd | 997 | end_of_fields:; |
5f7b2142 ILT |
998 | |
999 | /* In an stBlock, there is no way to distinguish structs, | |
1000 | unions, and enums at this point. This is a bug in the | |
1001 | original design (that has been fixed with the recent | |
1002 | addition of the stStruct, stUnion, and stEnum symbol | |
1003 | types.) The way you can tell is if/when you see a variable | |
1004 | or field of that type. In that case the variable's type | |
1005 | (in the AUX table) says if the type is struct, union, or | |
1006 | enum, and points back to the stBlock here. So you can | |
1007 | patch the tag kind up later - but only if there actually is | |
1008 | a variable or field of that type. | |
1009 | ||
1010 | So until we know for sure, we will guess at this point. | |
1011 | The heuristic is: | |
1012 | If the first member has index==indexNil or a void type, | |
1013 | assume we have an enumeration. | |
1014 | Otherwise, if there is more than one member, and all | |
1015 | the members have offset 0, assume we have a union. | |
1016 | Otherwise, assume we have a struct. | |
1017 | ||
1018 | The heuristic could guess wrong in the case of of an | |
1019 | enumeration with no members or a union with one (or zero) | |
1020 | members, or when all except the last field of a struct have | |
1021 | width zero. These are uncommon and/or illegal situations, | |
1022 | and in any case guessing wrong probably doesn't matter | |
1023 | much. | |
1024 | ||
1025 | But if we later do find out we were wrong, we fixup the tag | |
1026 | kind. Members of an enumeration must be handled | |
1027 | differently from struct/union fields, and that is harder to | |
1028 | patch up, but luckily we shouldn't need to. (If there are | |
1029 | any enumeration members, we can tell for sure it's an enum | |
1030 | here.) */ | |
1031 | ||
1032 | if (type_code == TYPE_CODE_UNDEF) | |
1033 | if (nfields > 1 && max_value == 0) | |
1034 | type_code = TYPE_CODE_UNION; | |
1035 | else | |
1036 | type_code = TYPE_CODE_STRUCT; | |
1037 | ||
1038 | /* If this type was expected, use its partial definition */ | |
6c2e7392 PS |
1039 | pend = is_pending_symbol (cur_fdr, ext_sh); |
1040 | if (pend != (struct mips_pending *) NULL) | |
1041 | t = pend->t; | |
5f7b2142 | 1042 | else |
e7ff735c | 1043 | t = new_type (NULL); |
5f7b2142 | 1044 | |
e7ff735c JK |
1045 | TYPE_TAG_NAME (t) = obconcat (¤t_objfile->symbol_obstack, |
1046 | "", "", name); | |
5f7b2142 ILT |
1047 | TYPE_CODE (t) = type_code; |
1048 | TYPE_LENGTH (t) = sh->value; | |
1049 | TYPE_NFIELDS (t) = nfields; | |
6c2e7392 PS |
1050 | TYPE_FIELDS (t) = f = ((struct field *) |
1051 | TYPE_ALLOC (t, | |
1052 | nfields * sizeof (struct field))); | |
6ac14d25 PS |
1053 | /* Handle opaque struct definitions. */ |
1054 | if (TYPE_NFIELDS (t) == 0) | |
1055 | { | |
1056 | TYPE_FLAGS (t) |= TYPE_FLAG_STUB; | |
1057 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1058 | } | |
5f7b2142 ILT |
1059 | |
1060 | if (type_code == TYPE_CODE_ENUM) | |
1061 | { | |
1062 | /* This is a non-empty enum. */ | |
6ac14d25 PS |
1063 | for (ext_tsym = ext_sh + external_sym_size; |
1064 | ; | |
1065 | ext_tsym += external_sym_size) | |
5f7b2142 | 1066 | { |
6c2e7392 | 1067 | SYMR tsym; |
5f7b2142 | 1068 | struct symbol *enum_sym; |
6c2e7392 | 1069 | |
6ac14d25 | 1070 | (*swap_sym_in) (cur_bfd, ext_tsym, &tsym); |
6c2e7392 PS |
1071 | |
1072 | if (tsym.st != stMember) | |
1073 | break; | |
1074 | ||
1075 | f->bitpos = tsym.value; | |
5f7b2142 | 1076 | f->type = t; |
6c2e7392 PS |
1077 | f->name = (ecoff_data (cur_bfd)->ss |
1078 | + cur_fdr->issBase | |
1079 | + tsym.iss); | |
5f7b2142 ILT |
1080 | f->bitsize = 0; |
1081 | ||
1082 | enum_sym = ((struct symbol *) | |
817bc7b8 | 1083 | obstack_alloc (¤t_objfile->symbol_obstack, |
5f7b2142 ILT |
1084 | sizeof (struct symbol))); |
1085 | memset ((PTR) enum_sym, 0, sizeof (struct symbol)); | |
1086 | SYMBOL_NAME (enum_sym) = f->name; | |
1087 | SYMBOL_CLASS (enum_sym) = LOC_CONST; | |
1088 | SYMBOL_TYPE (enum_sym) = t; | |
1089 | SYMBOL_NAMESPACE (enum_sym) = VAR_NAMESPACE; | |
6c2e7392 | 1090 | SYMBOL_VALUE (enum_sym) = tsym.value; |
5f7b2142 ILT |
1091 | add_symbol (enum_sym, top_stack->cur_block); |
1092 | ||
1093 | /* Skip the stMembers that we've handled. */ | |
1094 | count++; | |
1095 | f++; | |
1096 | } | |
1097 | } | |
1098 | SYMBOL_TYPE (s) = t; | |
1099 | /* make this the current type */ | |
1100 | top_stack->cur_type = t; | |
1101 | top_stack->cur_field = 0; | |
1102 | /* Mark that symbol has a type, and say which one */ | |
1103 | sh->value = (long) t; | |
6ac14d25 | 1104 | sh->st = stParsed; |
5f7b2142 ILT |
1105 | break; |
1106 | ||
1107 | /* End of local variables shared by struct, union, enum, and | |
1108 | block (as yet unknown struct/union/enum) processing. */ | |
1109 | } | |
817bc7b8 | 1110 | |
5f7b2142 ILT |
1111 | case_stBlock_code: |
1112 | /* beginnning of (code) block. Value of symbol | |
1113 | is the displacement from procedure start */ | |
1114 | push_parse_stack (); | |
1115 | top_stack->blocktype = stBlock; | |
1116 | b = new_block (top_stack->maxsyms); | |
1117 | BLOCK_START (b) = sh->value + top_stack->procadr; | |
1118 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1119 | top_stack->cur_block = b; | |
1120 | add_block (b, top_stack->cur_st); | |
1121 | break; | |
1122 | ||
1123 | case stEnd: /* end (of anything) */ | |
e7ff735c | 1124 | if (sh->sc == scInfo || sh->sc == scCommon) |
5f7b2142 ILT |
1125 | { |
1126 | /* Finished with type */ | |
1127 | top_stack->cur_type = 0; | |
1128 | } | |
6c2e7392 PS |
1129 | else if (sh->sc == scText && |
1130 | (top_stack->blocktype == stProc || | |
1131 | top_stack->blocktype == stStaticProc)) | |
5f7b2142 ILT |
1132 | { |
1133 | /* Finished with procedure */ | |
1134 | struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st); | |
1135 | struct mips_extra_func_info *e; | |
1136 | struct block *b; | |
1137 | int i; | |
1138 | ||
1139 | BLOCK_END (top_stack->cur_block) += sh->value; /* size */ | |
1140 | ||
1141 | /* Make up special symbol to contain procedure specific info */ | |
1142 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
1143 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
1144 | SYMBOL_CLASS (s) = LOC_CONST; | |
1145 | SYMBOL_TYPE (s) = builtin_type_void; | |
1146 | e = ((struct mips_extra_func_info *) | |
1147 | obstack_alloc (¤t_objfile->symbol_obstack, | |
1148 | sizeof (struct mips_extra_func_info))); | |
1149 | SYMBOL_VALUE (s) = (int) e; | |
1150 | e->numargs = top_stack->numargs; | |
1151 | add_symbol (s, top_stack->cur_block); | |
1152 | ||
1153 | /* Reallocate symbols, saving memory */ | |
1154 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1155 | ||
1156 | /* f77 emits proc-level with address bounds==[0,0], | |
6c2e7392 | 1157 | So look for such child blocks, and patch them. */ |
5f7b2142 ILT |
1158 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) |
1159 | { | |
1160 | struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i); | |
1161 | if (BLOCK_SUPERBLOCK (b_bad) == b | |
1162 | && BLOCK_START (b_bad) == top_stack->procadr | |
1163 | && BLOCK_END (b_bad) == top_stack->procadr) | |
1164 | { | |
1165 | BLOCK_START (b_bad) = BLOCK_START (b); | |
1166 | BLOCK_END (b_bad) = BLOCK_END (b); | |
1167 | } | |
1168 | } | |
1169 | } | |
1170 | else if (sh->sc == scText && top_stack->blocktype == stBlock) | |
1171 | { | |
6c2e7392 PS |
1172 | /* End of (code) block. The value of the symbol is the |
1173 | displacement from the procedure`s start address of the | |
1174 | end of this block. */ | |
5f7b2142 ILT |
1175 | BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr; |
1176 | shrink_block (top_stack->cur_block, top_stack->cur_st); | |
1177 | } | |
1178 | else if (sh->sc == scText && top_stack->blocktype == stFile) | |
1179 | { | |
1180 | /* End of file. Pop parse stack and ignore. Higher | |
6c2e7392 | 1181 | level code deals with this. */ |
5f7b2142 | 1182 | ; |
bd5635a1 | 1183 | } |
5f7b2142 ILT |
1184 | else |
1185 | complain (&stEnd_complaint, sh->sc); | |
1186 | ||
1187 | pop_parse_stack (); /* restore previous lexical context */ | |
1188 | break; | |
1189 | ||
1190 | case stMember: /* member of struct or union */ | |
1191 | f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++]; | |
6c2e7392 | 1192 | f->name = name; |
5f7b2142 ILT |
1193 | f->bitpos = sh->value; |
1194 | f->bitsize = 0; | |
cbba020f | 1195 | f->type = parse_type (ax + sh->index, &f->bitsize, bigend, name); |
5f7b2142 ILT |
1196 | break; |
1197 | ||
1198 | case stTypedef: /* type definition */ | |
6c2e7392 | 1199 | s = new_symbol (name); |
5f7b2142 ILT |
1200 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; |
1201 | SYMBOL_CLASS (s) = LOC_TYPEDEF; | |
1202 | SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block; | |
1203 | add_symbol (s, top_stack->cur_block); | |
cbba020f | 1204 | SYMBOL_TYPE (s) = parse_type (ax + sh->index, 0, bigend, name); |
5f7b2142 | 1205 | sh->value = (long) SYMBOL_TYPE (s); |
6ac14d25 PS |
1206 | sh->st = stParsed; |
1207 | if (TYPE_TAG_NAME (SYMBOL_TYPE (s)) != NULL | |
1208 | && STREQ (TYPE_TAG_NAME (SYMBOL_TYPE (s)), "<undefined>")) | |
1209 | { | |
1210 | /* mips cc puts out a stTypedef for opaque struct definitions. */ | |
1211 | TYPE_FLAGS (SYMBOL_TYPE (s)) |= TYPE_FLAG_STUB; | |
1212 | } | |
1213 | /* Incomplete definitions of structs should not get a name. */ | |
1214 | if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL | |
1215 | && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0 | |
1216 | || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT | |
1217 | && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION))) | |
1218 | { | |
1219 | if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR | |
1220 | || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC) | |
1221 | { | |
1222 | /* If we are giving a name to a type such as "pointer to | |
1223 | foo" or "function returning foo", we better not set | |
1224 | the TYPE_NAME. If the program contains "typedef char | |
1225 | *caddr_t;", we don't want all variables of type char | |
1226 | * to print as caddr_t. This is not just a | |
1227 | consequence of GDB's type management; CC and GCC (at | |
1228 | least through version 2.4) both output variables of | |
1229 | either type char * or caddr_t with the type | |
1230 | refering to the stTypedef symbol for caddr_t. If a future | |
1231 | compiler cleans this up it GDB is not ready for it | |
1232 | yet, but if it becomes ready we somehow need to | |
1233 | disable this check (without breaking the PCC/GCC2.4 | |
1234 | case). | |
1235 | ||
1236 | Sigh. | |
1237 | ||
1238 | Fortunately, this check seems not to be necessary | |
1239 | for anything except pointers or functions. */ | |
1240 | } | |
1241 | else | |
1242 | TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_NAME (s); | |
1243 | } | |
5f7b2142 ILT |
1244 | break; |
1245 | ||
1246 | case stFile: /* file name */ | |
1247 | push_parse_stack (); | |
1248 | top_stack->blocktype = sh->st; | |
1249 | break; | |
1250 | ||
1251 | /* I`ve never seen these for C */ | |
1252 | case stRegReloc: | |
1253 | break; /* register relocation */ | |
1254 | case stForward: | |
1255 | break; /* forwarding address */ | |
1256 | case stConstant: | |
1257 | break; /* constant */ | |
1258 | default: | |
1259 | complain (&unknown_mips_symtype_complaint, sh->st); | |
1260 | break; | |
1261 | } | |
6c2e7392 | 1262 | |
5f7b2142 | 1263 | return count; |
bd5635a1 RP |
1264 | } |
1265 | ||
d747e0af MT |
1266 | /* Parse the type information provided in the raw AX entries for |
1267 | the symbol SH. Return the bitfield size in BS, in case. | |
1268 | We must byte-swap the AX entries before we use them; BIGEND says whether | |
1269 | they are big-endian or little-endian (from fh->fBigendian). */ | |
bd5635a1 | 1270 | |
84ffdec2 | 1271 | static struct type * |
cbba020f | 1272 | parse_type (ax, bs, bigend, sym_name) |
5f7b2142 ILT |
1273 | union aux_ext *ax; |
1274 | int *bs; | |
1275 | int bigend; | |
cbba020f | 1276 | char *sym_name; |
bd5635a1 | 1277 | { |
5f7b2142 ILT |
1278 | /* Null entries in this map are treated specially */ |
1279 | static struct type **map_bt[] = | |
1280 | { | |
1281 | &builtin_type_void, /* btNil */ | |
1282 | 0, /* btAdr */ | |
1283 | &builtin_type_char, /* btChar */ | |
1284 | &builtin_type_unsigned_char,/* btUChar */ | |
1285 | &builtin_type_short, /* btShort */ | |
1286 | &builtin_type_unsigned_short, /* btUShort */ | |
1287 | &builtin_type_int, /* btInt */ | |
1288 | &builtin_type_unsigned_int, /* btUInt */ | |
1289 | &builtin_type_long, /* btLong */ | |
1290 | &builtin_type_unsigned_long,/* btULong */ | |
1291 | &builtin_type_float, /* btFloat */ | |
1292 | &builtin_type_double, /* btDouble */ | |
1293 | 0, /* btStruct */ | |
1294 | 0, /* btUnion */ | |
1295 | 0, /* btEnum */ | |
1296 | 0, /* btTypedef */ | |
1297 | 0, /* btRange */ | |
1298 | 0, /* btSet */ | |
1299 | &builtin_type_complex, /* btComplex */ | |
1300 | &builtin_type_double_complex, /* btDComplex */ | |
1301 | 0, /* btIndirect */ | |
1302 | &builtin_type_fixed_dec, /* btFixedDec */ | |
1303 | &builtin_type_float_dec, /* btFloatDec */ | |
1304 | &builtin_type_string, /* btString */ | |
1305 | 0, /* btBit */ | |
1306 | 0, /* btPicture */ | |
1307 | &builtin_type_void, /* btVoid */ | |
1308 | &builtin_type_long_long, /* btLongLong */ | |
1309 | &builtin_type_unsigned_long_long, /* btULongLong */ | |
1310 | }; | |
1311 | ||
1312 | TIR t[1]; | |
1313 | struct type *tp = 0; | |
5f7b2142 | 1314 | union aux_ext *tax; |
6c2e7392 | 1315 | enum type_code type_code = TYPE_CODE_UNDEF; |
5f7b2142 ILT |
1316 | |
1317 | /* Use aux as a type information record, map its basic type. */ | |
1318 | tax = ax; | |
1319 | ecoff_swap_tir_in (bigend, &tax->a_ti, t); | |
cbba020f | 1320 | if (t->bt >= (sizeof (map_bt) / sizeof (*map_bt))) |
5f7b2142 | 1321 | { |
cbba020f | 1322 | complain (&basic_type_complaint, t->bt, sym_name); |
5f7b2142 ILT |
1323 | return builtin_type_int; |
1324 | } | |
1325 | if (map_bt[t->bt]) | |
1326 | { | |
1327 | tp = *map_bt[t->bt]; | |
5f7b2142 ILT |
1328 | } |
1329 | else | |
1330 | { | |
1331 | tp = NULL; | |
1332 | /* Cannot use builtin types -- build our own */ | |
1333 | switch (t->bt) | |
bd5635a1 | 1334 | { |
5f7b2142 ILT |
1335 | case btAdr: |
1336 | tp = lookup_pointer_type (builtin_type_void); | |
5f7b2142 ILT |
1337 | break; |
1338 | case btStruct: | |
1339 | type_code = TYPE_CODE_STRUCT; | |
5f7b2142 ILT |
1340 | break; |
1341 | case btUnion: | |
1342 | type_code = TYPE_CODE_UNION; | |
5f7b2142 ILT |
1343 | break; |
1344 | case btEnum: | |
1345 | type_code = TYPE_CODE_ENUM; | |
5f7b2142 ILT |
1346 | break; |
1347 | case btRange: | |
1348 | type_code = TYPE_CODE_RANGE; | |
5f7b2142 ILT |
1349 | break; |
1350 | case btSet: | |
1351 | type_code = TYPE_CODE_SET; | |
5f7b2142 ILT |
1352 | break; |
1353 | case btTypedef: | |
1354 | default: | |
cbba020f | 1355 | complain (&basic_type_complaint, t->bt, sym_name); |
5f7b2142 | 1356 | return builtin_type_int; |
bd5635a1 | 1357 | } |
5f7b2142 | 1358 | } |
bd5635a1 | 1359 | |
5f7b2142 ILT |
1360 | /* Skip over any further type qualifiers (FIXME). */ |
1361 | if (t->continued) | |
1362 | { | |
1363 | /* This is the way it would work if the compiler worked */ | |
1364 | TIR t1[1]; | |
1365 | do | |
1366 | { | |
1367 | ax++; | |
6c2e7392 | 1368 | ecoff_swap_tir_in (bigend, &ax->a_ti, t1); |
bd5635a1 | 1369 | } |
5f7b2142 ILT |
1370 | while (t1->continued); |
1371 | } | |
bd5635a1 | 1372 | |
5f7b2142 ILT |
1373 | /* Move on to next aux */ |
1374 | ax++; | |
d747e0af | 1375 | |
5f7b2142 ILT |
1376 | if (t->fBitfield) |
1377 | { | |
6ac14d25 PS |
1378 | /* Inhibit core dumps with some cfront generated objects that |
1379 | corrupt the TIR. */ | |
1380 | if (bs == (int *)NULL) | |
1381 | { | |
cbba020f | 1382 | complain (&bad_fbitfield_complaint, sym_name); |
6ac14d25 PS |
1383 | return builtin_type_int; |
1384 | } | |
5f7b2142 ILT |
1385 | *bs = AUX_GET_WIDTH (bigend, ax); |
1386 | ax++; | |
1387 | } | |
bd5635a1 | 1388 | |
5f7b2142 ILT |
1389 | /* All these types really point to some (common) MIPS type |
1390 | definition, and only the type-qualifiers fully identify | |
1391 | them. We'll make the same effort at sharing. */ | |
e7ff735c | 1392 | if (t->bt == btStruct || |
5f7b2142 ILT |
1393 | t->bt == btUnion || |
1394 | t->bt == btEnum || | |
e7ff735c JK |
1395 | |
1396 | /* btSet (I think) implies that the name is a tag name, not a typedef | |
1397 | name. This apparently is a MIPS extension for C sets. */ | |
5f7b2142 ILT |
1398 | t->bt == btSet) |
1399 | { | |
e7ff735c JK |
1400 | char *name; |
1401 | ||
1402 | /* Try to cross reference this type */ | |
cbba020f | 1403 | ax += cross_ref (ax, &tp, type_code, &name, bigend, sym_name); |
e7ff735c JK |
1404 | /* reading .o file ? */ |
1405 | if (tp == (struct type *) NULL) | |
1406 | tp = init_type (type_code, 0, 0, (char *) NULL, | |
1407 | (struct objfile *) NULL); | |
1408 | ||
6ac14d25 PS |
1409 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1410 | Any type may be returned from cross_ref if file indirect entries | |
1411 | are corrupted. */ | |
1412 | if (TYPE_CODE (tp) != TYPE_CODE_STRUCT | |
1413 | && TYPE_CODE (tp) != TYPE_CODE_UNION | |
1414 | && TYPE_CODE (tp) != TYPE_CODE_ENUM) | |
e7ff735c | 1415 | { |
cbba020f | 1416 | complain (&unexpected_type_code_complaint, sym_name); |
6ac14d25 PS |
1417 | } |
1418 | else | |
1419 | { | |
1420 | ||
1421 | /* Usually, TYPE_CODE(tp) is already type_code. The main | |
1422 | exception is if we guessed wrong re struct/union/enum. */ | |
1423 | if (TYPE_CODE (tp) != type_code) | |
1424 | { | |
cbba020f | 1425 | complain (&bad_tag_guess_complaint, sym_name); |
6ac14d25 PS |
1426 | TYPE_CODE (tp) = type_code; |
1427 | } | |
1428 | /* Do not set the tag name if it is a compiler generated tag name | |
1429 | (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */ | |
1430 | if (name[0] == '.' || name[0] == '\0') | |
1431 | TYPE_TAG_NAME (tp) = NULL; | |
1432 | else if (TYPE_TAG_NAME (tp) == NULL | |
1433 | || !STREQ (TYPE_TAG_NAME (tp), name)) | |
1434 | TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name), | |
1435 | ¤t_objfile->type_obstack); | |
e7ff735c | 1436 | } |
e7ff735c JK |
1437 | } |
1438 | ||
1439 | /* All these types really point to some (common) MIPS type | |
1440 | definition, and only the type-qualifiers fully identify | |
6ac14d25 PS |
1441 | them. We'll make the same effort at sharing. |
1442 | FIXME: btIndirect cannot happen here as it is handled by the | |
1443 | switch t->bt above. And we are not doing any guessing on range types. */ | |
e7ff735c JK |
1444 | if (t->bt == btIndirect || |
1445 | t->bt == btRange) | |
1446 | { | |
1447 | char *name; | |
5f7b2142 ILT |
1448 | |
1449 | /* Try to cross reference this type */ | |
cbba020f | 1450 | ax += cross_ref (ax, &tp, type_code, &name, bigend, sym_name); |
5f7b2142 | 1451 | /* reading .o file ? */ |
6c2e7392 | 1452 | if (tp == (struct type *) NULL) |
5f7b2142 ILT |
1453 | tp = init_type (type_code, 0, 0, (char *) NULL, |
1454 | (struct objfile *) NULL); | |
5f7b2142 | 1455 | |
6ac14d25 PS |
1456 | /* Make sure that TYPE_CODE(tp) has an expected type code. |
1457 | Any type may be returned from cross_ref if file indirect entries | |
1458 | are corrupted. */ | |
1459 | if (TYPE_CODE (tp) != TYPE_CODE_RANGE) | |
1460 | { | |
cbba020f | 1461 | complain (&unexpected_type_code_complaint, sym_name); |
6ac14d25 PS |
1462 | } |
1463 | else | |
5f7b2142 | 1464 | { |
6ac14d25 PS |
1465 | /* Usually, TYPE_CODE(tp) is already type_code. The main |
1466 | exception is if we guessed wrong re struct/union/enum. */ | |
1467 | if (TYPE_CODE (tp) != type_code) | |
1468 | { | |
cbba020f | 1469 | complain (&bad_tag_guess_complaint, sym_name); |
6ac14d25 PS |
1470 | TYPE_CODE (tp) = type_code; |
1471 | } | |
1472 | if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name)) | |
1473 | TYPE_NAME (tp) = obsavestring (name, strlen (name), | |
1474 | ¤t_objfile->type_obstack); | |
bd5635a1 | 1475 | } |
5f7b2142 | 1476 | } |
bd5635a1 | 1477 | |
5f7b2142 ILT |
1478 | /* Deal with range types */ |
1479 | if (t->bt == btRange) | |
1480 | { | |
1481 | TYPE_NFIELDS (tp) = 2; | |
1482 | TYPE_FIELDS (tp) = ((struct field *) | |
1483 | TYPE_ALLOC (tp, 2 * sizeof (struct field))); | |
1484 | TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"), | |
1485 | ¤t_objfile->type_obstack); | |
1486 | TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax); | |
1487 | ax++; | |
1488 | TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"), | |
1489 | ¤t_objfile->type_obstack); | |
1490 | TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax); | |
1491 | ax++; | |
1492 | } | |
bd5635a1 | 1493 | |
5f7b2142 | 1494 | /* Parse all the type qualifiers now. If there are more |
6c2e7392 | 1495 | than 6 the game will continue in the next aux */ |
bd5635a1 RP |
1496 | |
1497 | #define PARSE_TQ(tq) \ | |
d747e0af | 1498 | if (t->tq != tqNil) ax += upgrade_type(&tp, t->tq, ax, bigend); |
bd5635a1 | 1499 | |
5f7b2142 ILT |
1500 | again:PARSE_TQ (tq0); |
1501 | PARSE_TQ (tq1); | |
1502 | PARSE_TQ (tq2); | |
1503 | PARSE_TQ (tq3); | |
1504 | PARSE_TQ (tq4); | |
1505 | PARSE_TQ (tq5); | |
bd5635a1 RP |
1506 | #undef PARSE_TQ |
1507 | ||
5f7b2142 ILT |
1508 | if (t->continued) |
1509 | { | |
1510 | tax++; | |
1511 | ecoff_swap_tir_in (bigend, &tax->a_ti, t); | |
1512 | goto again; | |
1513 | } | |
1514 | return tp; | |
bd5635a1 RP |
1515 | } |
1516 | ||
1517 | /* Make up a complex type from a basic one. Type is passed by | |
1518 | reference in TPP and side-effected as necessary. The type | |
1519 | qualifier TQ says how to handle the aux symbols at AX for | |
d747e0af MT |
1520 | the symbol SX we are currently analyzing. BIGEND says whether |
1521 | aux symbols are big-endian or little-endian. | |
bd5635a1 RP |
1522 | Returns the number of aux symbols we parsed. */ |
1523 | ||
3eaebb75 | 1524 | static int |
5f7b2142 ILT |
1525 | upgrade_type (tpp, tq, ax, bigend) |
1526 | struct type **tpp; | |
1527 | int tq; | |
1528 | union aux_ext *ax; | |
1529 | int bigend; | |
bd5635a1 | 1530 | { |
5f7b2142 ILT |
1531 | int off; |
1532 | struct type *t; | |
1533 | ||
1534 | /* Used in array processing */ | |
1535 | int rf, id; | |
1536 | FDR *fh; | |
1537 | struct type *range; | |
1538 | struct type *indx; | |
1539 | int lower, upper; | |
1540 | RNDXR rndx; | |
1541 | ||
1542 | switch (tq) | |
1543 | { | |
1544 | case tqPtr: | |
1545 | t = lookup_pointer_type (*tpp); | |
1546 | *tpp = t; | |
1547 | return 0; | |
1548 | ||
1549 | case tqProc: | |
1550 | t = lookup_function_type (*tpp); | |
1551 | *tpp = t; | |
1552 | return 0; | |
1553 | ||
1554 | case tqArray: | |
1555 | off = 0; | |
1556 | ||
1557 | /* Determine and record the domain type (type of index) */ | |
6c2e7392 | 1558 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, &rndx); |
5f7b2142 ILT |
1559 | id = rndx.index; |
1560 | rf = rndx.rfd; | |
1561 | if (rf == 0xfff) | |
1562 | { | |
1563 | ax++; | |
1564 | rf = AUX_GET_ISYM (bigend, ax); | |
1565 | off++; | |
1566 | } | |
1567 | fh = get_rfd (cur_fd, rf); | |
1568 | ||
6c2e7392 PS |
1569 | indx = parse_type ((ecoff_data (cur_bfd)->external_aux |
1570 | + fh->iauxBase | |
1571 | + id), | |
cbba020f | 1572 | (int *) NULL, bigend, "<array index>"); |
5f7b2142 ILT |
1573 | |
1574 | /* Get the bounds, and create the array type. */ | |
1575 | ax++; | |
1576 | lower = AUX_GET_DNLOW (bigend, ax); | |
1577 | ax++; | |
1578 | upper = AUX_GET_DNHIGH (bigend, ax); | |
1579 | ax++; | |
1580 | rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */ | |
1581 | ||
1582 | range = create_range_type ((struct type *) NULL, indx, | |
1583 | lower, upper); | |
1584 | ||
1585 | t = create_array_type ((struct type *) NULL, *tpp, range); | |
1586 | ||
1587 | /* Check whether supplied array element bit size matches | |
1588 | the known size of the element type. If this complaint | |
1589 | ends up not happening, we can remove this code. It's | |
1590 | here because we aren't sure we understand this *&%&$ | |
1591 | symbol format. */ | |
1592 | id = TYPE_LENGTH (TYPE_TARGET_TYPE (t)) << 3; /* bitsize */ | |
1593 | if (id == 0) | |
1594 | { | |
1595 | /* Most likely an undefined type */ | |
1596 | id = rf; | |
1597 | TYPE_LENGTH (TYPE_TARGET_TYPE (t)) = id >> 3; | |
1598 | } | |
1599 | if (id != rf) | |
1600 | complain (&array_bitsize_complaint, rf); | |
3eaebb75 | 1601 | |
5f7b2142 ILT |
1602 | *tpp = t; |
1603 | return 4 + off; | |
bd5635a1 | 1604 | |
5f7b2142 ILT |
1605 | case tqVol: |
1606 | /* Volatile -- currently ignored */ | |
1607 | return 0; | |
3eaebb75 | 1608 | |
5f7b2142 ILT |
1609 | case tqConst: |
1610 | /* Const -- currently ignored */ | |
1611 | return 0; | |
817bc7b8 | 1612 | |
5f7b2142 ILT |
1613 | default: |
1614 | complain (&unknown_type_qual_complaint, tq); | |
1615 | return 0; | |
1616 | } | |
bd5635a1 RP |
1617 | } |
1618 | ||
1619 | ||
6c2e7392 PS |
1620 | /* Parse a procedure descriptor record PR. Note that the procedure is |
1621 | parsed _after_ the local symbols, now we just insert the extra | |
1622 | information we need into a MIPS_EFI_SYMBOL_NAME symbol that has | |
1623 | already been placed in the procedure's main block. Note also that | |
1624 | images that have been partially stripped (ld -x) have been deprived | |
1625 | of local symbols, and we have to cope with them here. FIRST_OFF is | |
1626 | the offset of the first procedure for this FDR; we adjust the | |
b5d4d6d7 JK |
1627 | address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab |
1628 | to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol | |
1629 | in question, or NULL to use top_stack->cur_block. */ | |
9adb88b7 | 1630 | |
b5d4d6d7 | 1631 | static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long)); |
bd5635a1 | 1632 | |
d1bb1d41 | 1633 | static void |
b5d4d6d7 | 1634 | parse_procedure (pr, search_symtab, first_off) |
5f7b2142 | 1635 | PDR *pr; |
b5d4d6d7 | 1636 | struct symtab *search_symtab; |
6c2e7392 | 1637 | unsigned long first_off; |
bd5635a1 | 1638 | { |
b5d4d6d7 | 1639 | struct symbol *s, *i; |
5f7b2142 ILT |
1640 | struct block *b; |
1641 | struct mips_extra_func_info *e; | |
1642 | char *sh_name; | |
1643 | ||
6c2e7392 PS |
1644 | /* Simple rule to find files linked "-x" */ |
1645 | if (cur_fdr->rss == -1) | |
5f7b2142 | 1646 | { |
6c2e7392 PS |
1647 | if (pr->isym == -1) |
1648 | { | |
1649 | /* Static procedure at address pr->adr. Sigh. */ | |
1650 | complain (&pdr_static_symbol_complaint, pr->adr); | |
1651 | return; | |
1652 | } | |
1653 | else | |
1654 | { | |
1655 | /* external */ | |
1656 | EXTR she; | |
1657 | ||
6ac14d25 PS |
1658 | (*ecoff_backend (cur_bfd)->swap_ext_in) |
1659 | (cur_bfd, | |
1660 | ((char *) ecoff_data (cur_bfd)->external_ext | |
1661 | + pr->isym * ecoff_backend (cur_bfd)->external_ext_size), | |
1662 | &she); | |
6c2e7392 PS |
1663 | sh_name = ecoff_data (cur_bfd)->ssext + she.asym.iss; |
1664 | } | |
5f7b2142 | 1665 | } |
6c2e7392 PS |
1666 | else |
1667 | { | |
1668 | /* Full symbols */ | |
1669 | SYMR sh; | |
1670 | ||
6ac14d25 PS |
1671 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
1672 | (cur_bfd, | |
1673 | ((char *) ecoff_data (cur_bfd)->external_sym | |
1674 | + ((cur_fdr->isymBase + pr->isym) | |
1675 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
1676 | &sh); | |
6c2e7392 PS |
1677 | sh_name = ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
1678 | } | |
1679 | ||
b5d4d6d7 | 1680 | if (search_symtab != NULL) |
6c2e7392 | 1681 | { |
b5d4d6d7 JK |
1682 | #if 0 |
1683 | /* This loses both in the case mentioned (want a static, find a global), | |
1684 | but also if we are looking up a non-mangled name which happens to | |
1685 | match the name of a mangled function. */ | |
1686 | /* We have to save the cur_fdr across the call to lookup_symbol. | |
1687 | If the pdr is for a static function and if a global function with | |
1688 | the same name exists, lookup_symbol will eventually read in the symtab | |
1689 | for the global function and clobber cur_fdr. */ | |
1690 | FDR *save_cur_fdr = cur_fdr; | |
1691 | s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL); | |
1692 | cur_fdr = save_cur_fdr; | |
1693 | #else | |
1694 | s = mylookup_symbol | |
1695 | (sh_name, | |
1696 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK), | |
1697 | VAR_NAMESPACE, | |
1698 | LOC_BLOCK); | |
1699 | #endif | |
1700 | } | |
1701 | else | |
1702 | s = mylookup_symbol (sh_name, top_stack->cur_block, | |
1703 | VAR_NAMESPACE, LOC_BLOCK); | |
9adb88b7 | 1704 | |
b5d4d6d7 JK |
1705 | if (s != 0) |
1706 | { | |
1707 | b = SYMBOL_BLOCK_VALUE (s); | |
1708 | } | |
1709 | else | |
1710 | { | |
1711 | complain (&pdr_for_nonsymbol_complaint, sh_name); | |
b303297a | 1712 | #if 1 |
b5d4d6d7 | 1713 | return; |
dac4929a | 1714 | #else |
817bc7b8 | 1715 | /* FIXME -- delete. We can't do symbol allocation now; it's all done. */ |
b5d4d6d7 JK |
1716 | s = new_symbol (sh_name); |
1717 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
1718 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
1719 | /* Donno its type, hope int is ok */ | |
1720 | SYMBOL_TYPE (s) = lookup_function_type (builtin_type_int); | |
1721 | add_symbol (s, top_stack->cur_block); | |
1722 | /* Wont have symbols for this one */ | |
1723 | b = new_block (2); | |
1724 | SYMBOL_BLOCK_VALUE (s) = b; | |
1725 | BLOCK_FUNCTION (b) = s; | |
1726 | BLOCK_START (b) = pr->adr; | |
1727 | /* BOUND used to be the end of procedure's text, but the | |
1728 | argument is no longer passed in. */ | |
1729 | BLOCK_END (b) = bound; | |
1730 | BLOCK_SUPERBLOCK (b) = top_stack->cur_block; | |
1731 | add_block (b, top_stack->cur_st); | |
817bc7b8 | 1732 | #endif |
9adb88b7 | 1733 | } |
d1bb1d41 | 1734 | |
b5d4d6d7 JK |
1735 | i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST); |
1736 | ||
1737 | if (i) | |
5f7b2142 | 1738 | { |
b5d4d6d7 | 1739 | e = (struct mips_extra_func_info *) SYMBOL_VALUE (i); |
5f7b2142 ILT |
1740 | e->pdr = *pr; |
1741 | e->pdr.isym = (long) s; | |
6c2e7392 | 1742 | e->pdr.adr += cur_fdr->adr - first_off; |
e157305c PS |
1743 | |
1744 | /* Correct incorrect setjmp procedure descriptor from the library | |
1745 | to make backtrace through setjmp work. */ | |
1746 | if (e->pdr.pcreg == 0 && strcmp (sh_name, "setjmp") == 0) | |
1747 | { | |
1748 | complain (&bad_setjmp_pdr_complaint, 0); | |
1749 | e->pdr.pcreg = RA_REGNUM; | |
1750 | e->pdr.regmask = 0x80000000; | |
1751 | e->pdr.regoffset = -4; | |
1752 | } | |
5f7b2142 | 1753 | } |
bd5635a1 RP |
1754 | } |
1755 | ||
1756 | /* Parse the external symbol ES. Just call parse_symbol() after | |
1757 | making sure we know where the aux are for it. For procedures, | |
1758 | parsing of the PDRs has already provided all the needed | |
1759 | information, we only parse them if SKIP_PROCEDURES is false, | |
101f259c | 1760 | and only if this causes no symbol duplication. |
d747e0af | 1761 | BIGEND says whether aux entries are big-endian or little-endian. |
101f259c JG |
1762 | |
1763 | This routine clobbers top_stack->cur_block and ->cur_st. */ | |
bd5635a1 | 1764 | |
4ad1963e | 1765 | static void |
5f7b2142 ILT |
1766 | parse_external (es, skip_procedures, bigend) |
1767 | EXTR *es; | |
1768 | int skip_procedures; | |
1769 | int bigend; | |
bd5635a1 | 1770 | { |
5f7b2142 | 1771 | union aux_ext *ax; |
bd5635a1 | 1772 | |
5f7b2142 ILT |
1773 | if (es->ifd != ifdNil) |
1774 | { | |
1775 | cur_fd = es->ifd; | |
6c2e7392 PS |
1776 | cur_fdr = ecoff_data (cur_bfd)->fdr + cur_fd; |
1777 | ax = ecoff_data (cur_bfd)->external_aux + cur_fdr->iauxBase; | |
5f7b2142 ILT |
1778 | } |
1779 | else | |
1780 | { | |
6c2e7392 | 1781 | cur_fdr = ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
1782 | ax = 0; |
1783 | } | |
bd5635a1 | 1784 | |
5f7b2142 ILT |
1785 | /* Reading .o files */ |
1786 | if (es->asym.sc == scUndefined || es->asym.sc == scNil) | |
1787 | { | |
1788 | char *what; | |
1789 | switch (es->asym.st) | |
1790 | { | |
1791 | case stStaticProc: | |
bd5635a1 | 1792 | case stProc: |
5f7b2142 ILT |
1793 | what = "procedure"; |
1794 | n_undef_procs++; | |
1795 | break; | |
bd5635a1 | 1796 | case stGlobal: |
5f7b2142 ILT |
1797 | what = "variable"; |
1798 | n_undef_vars++; | |
1799 | break; | |
bd5635a1 | 1800 | case stLabel: |
5f7b2142 ILT |
1801 | what = "label"; |
1802 | n_undef_labels++; | |
1803 | break; | |
1804 | default: | |
1805 | what = "symbol"; | |
1806 | break; | |
1807 | } | |
1808 | n_undef_symbols++; | |
1809 | /* FIXME: Turn this into a complaint? */ | |
1810 | if (info_verbose) | |
1811 | printf_filtered ("Warning: %s `%s' is undefined (in %s)\n", | |
6c2e7392 PS |
1812 | what, |
1813 | ecoff_data (cur_bfd)->ssext + es->asym.iss, | |
1814 | fdr_name (cur_fdr)); | |
5f7b2142 ILT |
1815 | return; |
1816 | } | |
1817 | ||
1818 | switch (es->asym.st) | |
1819 | { | |
1820 | case stProc: | |
1821 | /* If we have full symbols we do not need more */ | |
1822 | if (skip_procedures) | |
1823 | return; | |
6c2e7392 PS |
1824 | if (mylookup_symbol (ecoff_data (cur_bfd)->ssext + es->asym.iss, |
1825 | top_stack->cur_block, | |
5f7b2142 ILT |
1826 | VAR_NAMESPACE, LOC_BLOCK)) |
1827 | break; | |
1828 | /* fall through */ | |
1829 | case stGlobal: | |
1830 | case stLabel: | |
6c2e7392 PS |
1831 | /* Note that the case of a symbol with indexNil must be handled |
1832 | anyways by parse_symbol(). */ | |
6ac14d25 | 1833 | parse_symbol (&es->asym, ax, (char *) NULL, bigend); |
6c2e7392 | 1834 | /* Note that parse_symbol changed es->asym. */ |
5f7b2142 ILT |
1835 | break; |
1836 | default: | |
1837 | break; | |
1838 | } | |
bd5635a1 RP |
1839 | } |
1840 | ||
1841 | /* Parse the line number info for file descriptor FH into | |
1842 | GDB's linetable LT. MIPS' encoding requires a little bit | |
1843 | of magic to get things out. Note also that MIPS' line | |
1844 | numbers can go back and forth, apparently we can live | |
1845 | with that and do not need to reorder our linetables */ | |
1846 | ||
4ad1963e | 1847 | static void |
6c2e7392 | 1848 | parse_lines (fh, pr, lt) |
5f7b2142 | 1849 | FDR *fh; |
6c2e7392 | 1850 | PDR *pr; |
5f7b2142 | 1851 | struct linetable *lt; |
bd5635a1 | 1852 | { |
6c2e7392 | 1853 | unsigned char *base; |
5f7b2142 ILT |
1854 | int j, k; |
1855 | int delta, count, lineno = 0; | |
6c2e7392 | 1856 | unsigned long first_off = pr->adr; |
5f7b2142 | 1857 | |
cbba020f | 1858 | if (fh->cbLine == 0) |
5f7b2142 ILT |
1859 | return; |
1860 | ||
6c2e7392 PS |
1861 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset; |
1862 | ||
5f7b2142 | 1863 | /* Scan by procedure descriptors */ |
6c2e7392 PS |
1864 | k = 0; |
1865 | for (j = 0; j < fh->cpd; j++, pr++) | |
5f7b2142 ILT |
1866 | { |
1867 | int l, halt; | |
6c2e7392 | 1868 | unsigned long adr; |
5f7b2142 ILT |
1869 | |
1870 | /* No code for this one */ | |
1871 | if (pr->iline == ilineNil || | |
1872 | pr->lnLow == -1 || pr->lnHigh == -1) | |
1873 | continue; | |
6c2e7392 PS |
1874 | |
1875 | /* Aurgh! To know where to stop expanding we must look-ahead. */ | |
5f7b2142 ILT |
1876 | for (l = 1; l < (fh->cpd - j); l++) |
1877 | if (pr[l].iline != -1) | |
1878 | break; | |
1879 | if (l == (fh->cpd - j)) | |
1880 | halt = fh->cline; | |
1881 | else | |
1882 | halt = pr[l].iline; | |
6c2e7392 PS |
1883 | |
1884 | /* When procedures are moved around the linenumbers are | |
1885 | attributed to the next procedure up. */ | |
5f7b2142 ILT |
1886 | if (pr->iline >= halt) |
1887 | continue; | |
1888 | ||
6c2e7392 PS |
1889 | base = ecoff_data (cur_bfd)->line + fh->cbLineOffset + pr->cbLineOffset; |
1890 | adr = fh->adr + pr->adr - first_off; | |
1891 | l = adr >> 2; /* in words */ | |
1892 | halt += (adr >> 2) - pr->iline; | |
5f7b2142 ILT |
1893 | for (lineno = pr->lnLow; l < halt;) |
1894 | { | |
1895 | count = *base & 0x0f; | |
1896 | delta = *base++ >> 4; | |
1897 | if (delta >= 8) | |
1898 | delta -= 16; | |
1899 | if (delta == -8) | |
1900 | { | |
1901 | delta = (base[0] << 8) | base[1]; | |
1902 | if (delta >= 0x8000) | |
1903 | delta -= 0x10000; | |
1904 | base += 2; | |
1905 | } | |
1906 | lineno += delta; /* first delta is 0 */ | |
1907 | k = add_line (lt, lineno, l, k); | |
1908 | l += count + 1; | |
bd5635a1 | 1909 | } |
5f7b2142 | 1910 | } |
bd5635a1 | 1911 | } |
101f259c JG |
1912 | \f |
1913 | /* Master parsing procedure for first-pass reading of file symbols | |
6c2e7392 | 1914 | into a partial_symtab. */ |
bd5635a1 | 1915 | |
d747e0af | 1916 | static void |
6c2e7392 | 1917 | parse_partial_symbols (objfile, section_offsets) |
d4ea2aba | 1918 | struct objfile *objfile; |
dac4929a | 1919 | struct section_offsets *section_offsets; |
bd5635a1 | 1920 | { |
6ac14d25 PS |
1921 | const struct ecoff_backend_data * const backend = ecoff_backend (cur_bfd); |
1922 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
1923 | const bfd_size_type external_rfd_size = backend->external_rfd_size; | |
1924 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
1925 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
1926 | = backend->swap_ext_in; | |
1927 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
1928 | = backend->swap_sym_in; | |
1929 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
1930 | = backend->swap_rfd_in; | |
5f7b2142 | 1931 | int f_idx, s_idx; |
6c2e7392 | 1932 | HDRR *hdr = &ecoff_data (cur_bfd)->symbolic_header; |
5f7b2142 ILT |
1933 | /* Running pointers */ |
1934 | FDR *fh; | |
6ac14d25 PS |
1935 | char *ext_out; |
1936 | char *ext_out_end; | |
6c2e7392 PS |
1937 | EXTR *ext_block; |
1938 | register EXTR *ext_in; | |
1939 | EXTR *ext_in_end; | |
1940 | SYMR sh; | |
5f7b2142 ILT |
1941 | struct partial_symtab *pst; |
1942 | ||
1943 | int past_first_source_file = 0; | |
1944 | ||
1945 | /* List of current psymtab's include files */ | |
1946 | char **psymtab_include_list; | |
1947 | int includes_allocated; | |
1948 | int includes_used; | |
6c2e7392 | 1949 | EXTR *extern_tab; |
5f7b2142 ILT |
1950 | struct pst_map *fdr_to_pst; |
1951 | /* Index within current psymtab dependency list */ | |
1952 | struct partial_symtab **dependency_list; | |
1953 | int dependencies_used, dependencies_allocated; | |
1954 | struct cleanup *old_chain; | |
1955 | char *name; | |
cbba020f | 1956 | enum language prev_language; |
5f7b2142 | 1957 | |
6c2e7392 PS |
1958 | extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack, |
1959 | sizeof (EXTR) * hdr->iextMax); | |
5f7b2142 ILT |
1960 | |
1961 | includes_allocated = 30; | |
1962 | includes_used = 0; | |
1963 | psymtab_include_list = (char **) alloca (includes_allocated * | |
1964 | sizeof (char *)); | |
1965 | next_symbol_text_func = mips_next_symbol_text; | |
1966 | ||
1967 | dependencies_allocated = 30; | |
1968 | dependencies_used = 0; | |
1969 | dependency_list = | |
1970 | (struct partial_symtab **) alloca (dependencies_allocated * | |
1971 | sizeof (struct partial_symtab *)); | |
1972 | ||
1973 | last_source_file = NULL; | |
1974 | ||
1975 | /* | |
6c2e7392 PS |
1976 | * Big plan: |
1977 | * | |
1978 | * Only parse the Local and External symbols, and the Relative FDR. | |
1979 | * Fixup enough of the loader symtab to be able to use it. | |
1980 | * Allocate space only for the file's portions we need to | |
1981 | * look at. (XXX) | |
1982 | */ | |
817bc7b8 | 1983 | |
5f7b2142 ILT |
1984 | max_gdbinfo = 0; |
1985 | max_glevel = MIN_GLEVEL; | |
1986 | ||
1987 | /* Allocate the map FDR -> PST. | |
1988 | Minor hack: -O3 images might claim some global data belongs | |
1989 | to FDR -1. We`ll go along with that */ | |
1990 | fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst); | |
1991 | old_chain = make_cleanup (free, fdr_to_pst); | |
1992 | fdr_to_pst++; | |
1993 | { | |
1994 | struct partial_symtab *pst = new_psymtab ("", objfile); | |
1995 | fdr_to_pst[-1].pst = pst; | |
1996 | FDR_IDX (pst) = -1; | |
1997 | } | |
1998 | ||
e7e02420 PS |
1999 | /* Allocate the global pending list. */ |
2000 | ECOFF_PENDING_LIST (objfile) = | |
2001 | ((struct mips_pending **) | |
2002 | obstack_alloc (&objfile->psymbol_obstack, | |
2003 | hdr->ifdMax * sizeof (struct mips_pending *))); | |
2004 | memset ((PTR) ECOFF_PENDING_LIST (objfile), 0, | |
2005 | hdr->ifdMax * sizeof (struct mips_pending *)); | |
2006 | ||
6c2e7392 PS |
2007 | /* Pass 0 over external syms: swap them in. */ |
2008 | ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR)); | |
2009 | make_cleanup (free, ext_block); | |
2010 | ||
6ac14d25 PS |
2011 | ext_out = (char *) ecoff_data (cur_bfd)->external_ext; |
2012 | ext_out_end = ext_out + hdr->iextMax * external_ext_size; | |
6c2e7392 | 2013 | ext_in = ext_block; |
6ac14d25 PS |
2014 | for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++) |
2015 | (*swap_ext_in) (cur_bfd, ext_out, ext_in); | |
6c2e7392 | 2016 | |
5f7b2142 | 2017 | /* Pass 1 over external syms: Presize and partition the list */ |
6c2e7392 PS |
2018 | ext_in = ext_block; |
2019 | ext_in_end = ext_in + hdr->iextMax; | |
2020 | for (; ext_in < ext_in_end; ext_in++) | |
2021 | fdr_to_pst[ext_in->ifd].n_globals++; | |
817bc7b8 | 2022 | |
5f7b2142 ILT |
2023 | /* Pass 1.5 over files: partition out global symbol space */ |
2024 | s_idx = 0; | |
2025 | for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) | |
2026 | { | |
2027 | fdr_to_pst[f_idx].globals_offset = s_idx; | |
2028 | s_idx += fdr_to_pst[f_idx].n_globals; | |
2029 | fdr_to_pst[f_idx].n_globals = 0; | |
d4ea2aba | 2030 | } |
bd5635a1 | 2031 | |
5f7b2142 | 2032 | /* Pass 2 over external syms: fill in external symbols */ |
6c2e7392 PS |
2033 | ext_in = ext_block; |
2034 | ext_in_end = ext_in + hdr->iextMax; | |
2035 | for (; ext_in < ext_in_end; ext_in++) | |
5f7b2142 ILT |
2036 | { |
2037 | enum minimal_symbol_type ms_type = mst_text; | |
bd5635a1 | 2038 | |
6c2e7392 PS |
2039 | extern_tab[fdr_to_pst[ext_in->ifd].globals_offset |
2040 | + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in; | |
d4ea2aba | 2041 | |
6c2e7392 | 2042 | if (ext_in->asym.sc == scUndefined || ext_in->asym.sc == scNil) |
5f7b2142 | 2043 | continue; |
101f259c | 2044 | |
6c2e7392 PS |
2045 | name = ecoff_data (cur_bfd)->ssext + ext_in->asym.iss; |
2046 | switch (ext_in->asym.st) | |
5f7b2142 | 2047 | { |
817bc7b8 | 2048 | case stProc: |
5f7b2142 | 2049 | break; |
817bc7b8 | 2050 | case stGlobal: |
6ac14d25 PS |
2051 | if (ext_in->asym.sc == scData |
2052 | || ext_in->asym.sc == scSData | |
2053 | || ext_in->asym.sc == scRData) | |
2054 | ms_type = mst_data; | |
2055 | else | |
2056 | ms_type = mst_bss; | |
5f7b2142 | 2057 | break; |
817bc7b8 | 2058 | case stLabel: |
6ac14d25 PS |
2059 | if (ext_in->asym.sc == scAbs) |
2060 | ms_type = mst_abs; | |
2061 | else if (ext_in->asym.sc == scText) | |
2062 | ms_type = mst_text; | |
2063 | else if (ext_in->asym.sc == scData | |
2064 | || ext_in->asym.sc == scSData | |
2065 | || ext_in->asym.sc == scRData) | |
2066 | ms_type = mst_data; | |
2067 | else | |
2068 | ms_type = mst_bss; | |
5f7b2142 | 2069 | break; |
817bc7b8 | 2070 | default: |
5f7b2142 | 2071 | ms_type = mst_unknown; |
6c2e7392 | 2072 | complain (&unknown_ext_complaint, name); |
bd5635a1 | 2073 | } |
6c2e7392 | 2074 | prim_record_minimal_symbol (name, ext_in->asym.value, ms_type); |
817bc7b8 | 2075 | } |
bd5635a1 | 2076 | |
5f7b2142 ILT |
2077 | /* Pass 3 over files, over local syms: fill in static symbols */ |
2078 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) | |
2079 | { | |
2080 | struct partial_symtab *save_pst; | |
6c2e7392 | 2081 | EXTR *ext_ptr; |
dac4929a | 2082 | |
6c2e7392 | 2083 | cur_fdr = fh = ecoff_data (cur_bfd)->fdr + f_idx; |
c55e6167 | 2084 | |
5f7b2142 ILT |
2085 | if (fh->csym == 0) |
2086 | { | |
2087 | fdr_to_pst[f_idx].pst = NULL; | |
2088 | continue; | |
817bc7b8 | 2089 | } |
6c2e7392 PS |
2090 | pst = start_psymtab_common (objfile, section_offsets, |
2091 | fdr_name (fh), | |
5f7b2142 ILT |
2092 | fh->cpd ? fh->adr : 0, |
2093 | objfile->global_psymbols.next, | |
2094 | objfile->static_psymbols.next); | |
2095 | pst->read_symtab_private = ((char *) | |
2096 | obstack_alloc (&objfile->psymbol_obstack, | |
2097 | sizeof (struct symloc))); | |
6c2e7392 | 2098 | memset ((PTR) pst->read_symtab_private, 0, sizeof (struct symloc)); |
5f7b2142 ILT |
2099 | |
2100 | save_pst = pst; | |
5f7b2142 | 2101 | FDR_IDX (pst) = f_idx; |
6c2e7392 | 2102 | CUR_BFD (pst) = cur_bfd; |
5f7b2142 ILT |
2103 | |
2104 | /* The way to turn this into a symtab is to call... */ | |
2105 | pst->read_symtab = mipscoff_psymtab_to_symtab; | |
2106 | ||
e7e02420 PS |
2107 | /* Set up language for the pst. |
2108 | The language from the FDR is used if it is unambigious (e.g. cfront | |
2109 | with native cc and g++ will set the language to C). | |
2110 | Otherwise we have to deduce the language from the filename. | |
2111 | Native ecoff has every header file in a separate FDR, so | |
2112 | deduce_language_from_filename will return language_unknown for | |
2113 | a header file, which is not what we want. | |
cbba020f PS |
2114 | But the FDRs for the header files are after the FDR for the source |
2115 | file, so we can assign the language of the source file to the | |
2116 | following header files. Then we save the language in the private | |
2117 | pst data so that we can reuse it when building symtabs. */ | |
2118 | prev_language = psymtab_language; | |
e7e02420 PS |
2119 | |
2120 | switch (fh->lang) | |
2121 | { | |
2122 | case langCplusplusV2: | |
2123 | psymtab_language = language_cplus; | |
2124 | break; | |
2125 | default: | |
2126 | psymtab_language = deduce_language_from_filename (fdr_name (fh)); | |
2127 | break; | |
2128 | } | |
cbba020f PS |
2129 | if (psymtab_language == language_unknown) |
2130 | psymtab_language = prev_language; | |
2131 | PST_PRIVATE (pst)->pst_language = psymtab_language; | |
018ab14f | 2132 | |
5f7b2142 ILT |
2133 | pst->texthigh = pst->textlow; |
2134 | ||
2135 | /* For stabs-in-ecoff files, the second symbol must be @stab. | |
6c2e7392 PS |
2136 | This symbol is emitted by mips-tfile to signal that the |
2137 | current object file uses encapsulated stabs instead of mips | |
2138 | ecoff for local symbols. (It is the second symbol because | |
2139 | the first symbol is the stFile used to signal the start of a | |
2140 | file). */ | |
2141 | processing_gcc_compilation = 0; | |
2142 | if (fh->csym >= 2) | |
2143 | { | |
6ac14d25 PS |
2144 | (*swap_sym_in) (cur_bfd, |
2145 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2146 | + (fh->isymBase + 1) * external_sym_size), | |
2147 | &sh); | |
6c2e7392 PS |
2148 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2149 | stabs_symbol)) | |
2150 | processing_gcc_compilation = 2; | |
2151 | } | |
2152 | ||
2153 | if (processing_gcc_compilation != 0) | |
5f7b2142 | 2154 | { |
5f7b2142 ILT |
2155 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) |
2156 | { | |
2157 | int type_code; | |
2158 | char *namestring; | |
6c2e7392 | 2159 | |
6ac14d25 PS |
2160 | (*swap_sym_in) (cur_bfd, |
2161 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2162 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2163 | &sh); | |
2164 | type_code = ECOFF_UNMARK_STAB (sh.index); | |
2165 | if (!ECOFF_IS_STAB (&sh)) | |
5f7b2142 | 2166 | { |
6c2e7392 | 2167 | if (sh.st == stProc || sh.st == stStaticProc) |
5f7b2142 | 2168 | { |
6c2e7392 PS |
2169 | long procaddr = sh.value; |
2170 | long isym; | |
2171 | ||
2172 | ||
2173 | isym = AUX_GET_ISYM (fh->fBigendian, | |
2174 | (ecoff_data (cur_bfd)->external_aux | |
2175 | + fh->iauxBase | |
2176 | + sh.index)); | |
6ac14d25 PS |
2177 | (*swap_sym_in) (cur_bfd, |
2178 | (((char *) | |
2179 | ecoff_data (cur_bfd)->external_sym) | |
2180 | + ((fh->isymBase + isym - 1) | |
2181 | * external_sym_size)), | |
2182 | &sh); | |
6c2e7392 | 2183 | if (sh.st == stEnd) |
5f7b2142 | 2184 | { |
6c2e7392 | 2185 | long high = procaddr + sh.value; |
5f7b2142 ILT |
2186 | if (high > pst->texthigh) |
2187 | pst->texthigh = high; | |
101f259c | 2188 | } |
7e258d18 | 2189 | } |
5f7b2142 | 2190 | continue; |
817bc7b8 | 2191 | } |
6c2e7392 PS |
2192 | #define SET_NAMESTRING() \ |
2193 | namestring = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss | |
7e258d18 | 2194 | #define CUR_SYMBOL_TYPE type_code |
6c2e7392 | 2195 | #define CUR_SYMBOL_VALUE sh.value |
dac4929a | 2196 | #define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\ |
7e258d18 PB |
2197 | pst = save_pst |
2198 | #define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps) (void)0 | |
7e258d18 PB |
2199 | #define HANDLE_RBRAC(val) \ |
2200 | if ((val) > save_pst->texthigh) save_pst->texthigh = (val); | |
7e258d18 | 2201 | #include "partial-stab.h" |
7e258d18 | 2202 | } |
817bc7b8 | 2203 | } |
5f7b2142 ILT |
2204 | else |
2205 | { | |
5f7b2142 ILT |
2206 | for (cur_sdx = 0; cur_sdx < fh->csym;) |
2207 | { | |
2208 | char *name; | |
2209 | enum address_class class; | |
5f7b2142 | 2210 | |
6ac14d25 PS |
2211 | (*swap_sym_in) (cur_bfd, |
2212 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2213 | + ((fh->isymBase + cur_sdx) | |
2214 | * external_sym_size)), | |
2215 | &sh); | |
6c2e7392 | 2216 | |
6ac14d25 | 2217 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 ILT |
2218 | { |
2219 | cur_sdx++; | |
2220 | continue; | |
817bc7b8 | 2221 | } |
101f259c | 2222 | |
6ac14d25 PS |
2223 | /* Non absolute static symbols go into the minimal table. */ |
2224 | if (sh.sc == scUndefined || sh.sc == scNil | |
2225 | || (sh.index == indexNil | |
2226 | && (sh.st != stStatic || sh.sc == scAbs))) | |
5f7b2142 ILT |
2227 | { |
2228 | /* FIXME, premature? */ | |
2229 | cur_sdx++; | |
2230 | continue; | |
817bc7b8 | 2231 | } |
dac4929a | 2232 | |
6c2e7392 | 2233 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
817bc7b8 | 2234 | |
6c2e7392 | 2235 | switch (sh.st) |
5f7b2142 ILT |
2236 | { |
2237 | long high; | |
2238 | long procaddr; | |
2239 | int new_sdx; | |
2240 | ||
5f7b2142 | 2241 | case stStaticProc: /* Function */ |
6ac14d25 PS |
2242 | /* I believe this is used only for file-local functions. |
2243 | The comment in symconst.h ("load time only static procs") | |
2244 | isn't particularly clear on this point. */ | |
2245 | prim_record_minimal_symbol (name, sh.value, mst_file_text); | |
2246 | /* FALLTHROUGH */ | |
2247 | ||
2248 | case stProc: /* Asm labels apparently */ | |
5f7b2142 ILT |
2249 | ADD_PSYMBOL_TO_LIST (name, strlen (name), |
2250 | VAR_NAMESPACE, LOC_BLOCK, | |
6c2e7392 | 2251 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2252 | psymtab_language, objfile); |
2253 | /* Skip over procedure to next one. */ | |
6c2e7392 | 2254 | if (sh.index >= hdr->iauxMax) |
5f7b2142 ILT |
2255 | { |
2256 | /* Should not happen, but does when cross-compiling | |
2257 | with the MIPS compiler. FIXME -- pull later. */ | |
2258 | complain (&index_complaint, name); | |
2259 | new_sdx = cur_sdx + 1; /* Don't skip at all */ | |
2260 | } | |
2261 | else | |
2262 | new_sdx = AUX_GET_ISYM (fh->fBigendian, | |
6c2e7392 PS |
2263 | (ecoff_data (cur_bfd)->external_aux |
2264 | + fh->iauxBase | |
2265 | + sh.index)); | |
2266 | procaddr = sh.value; | |
5f7b2142 ILT |
2267 | |
2268 | if (new_sdx <= cur_sdx) | |
2269 | { | |
2270 | /* This should not happen either... FIXME. */ | |
2271 | complain (&aux_index_complaint, name); | |
2272 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
7e258d18 | 2273 | } |
817bc7b8 | 2274 | |
5f7b2142 | 2275 | cur_sdx = new_sdx; |
6ac14d25 PS |
2276 | (*swap_sym_in) (cur_bfd, |
2277 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2278 | + ((fh->isymBase + cur_sdx - 1) | |
2279 | * external_sym_size)), | |
2280 | &sh); | |
6c2e7392 | 2281 | if (sh.st != stEnd) |
817bc7b8 | 2282 | continue; |
6c2e7392 | 2283 | high = procaddr + sh.value; |
5f7b2142 ILT |
2284 | if (high > pst->texthigh) |
2285 | pst->texthigh = high; | |
2286 | continue; | |
2287 | ||
2288 | case stStatic: /* Variable */ | |
6ac14d25 PS |
2289 | if (sh.sc == scData || sh.sc == scSData || sh.sc == scRData) |
2290 | prim_record_minimal_symbol (name, sh.value, mst_file_data); | |
2291 | else | |
2292 | prim_record_minimal_symbol (name, sh.value, mst_file_bss); | |
5f7b2142 ILT |
2293 | class = LOC_STATIC; |
2294 | break; | |
2295 | ||
2296 | case stTypedef:/* Typedef */ | |
2297 | class = LOC_TYPEDEF; | |
2298 | break; | |
2299 | ||
2300 | case stConstant: /* Constant decl */ | |
2301 | class = LOC_CONST; | |
2302 | break; | |
2303 | ||
2304 | case stUnion: | |
2305 | case stStruct: | |
2306 | case stEnum: | |
2307 | case stBlock: /* { }, str, un, enum*/ | |
e7ff735c | 2308 | if (sh.sc == scInfo || sh.sc == scCommon) |
5f7b2142 ILT |
2309 | { |
2310 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2311 | STRUCT_NAMESPACE, LOC_TYPEDEF, | |
2312 | objfile->static_psymbols, | |
6c2e7392 | 2313 | sh.value, |
5f7b2142 ILT |
2314 | psymtab_language, objfile); |
2315 | } | |
2316 | /* Skip over the block */ | |
6c2e7392 | 2317 | new_sdx = sh.index; |
5f7b2142 ILT |
2318 | if (new_sdx <= cur_sdx) |
2319 | { | |
2320 | /* This happens with the Ultrix kernel. */ | |
2321 | complain (&block_index_complaint, name); | |
2322 | new_sdx = cur_sdx + 1; /* Don't skip backward */ | |
2323 | } | |
2324 | cur_sdx = new_sdx; | |
2325 | continue; | |
2326 | ||
2327 | case stFile: /* File headers */ | |
2328 | case stLabel: /* Labels */ | |
2329 | case stEnd: /* Ends of files */ | |
2330 | goto skip; | |
2331 | ||
2332 | case stLocal: /* Local variables */ | |
2333 | /* Normally these are skipped because we skip over | |
2334 | all blocks we see. However, these can occur | |
2335 | as visible symbols in a .h file that contains code. */ | |
2336 | goto skip; | |
2337 | ||
2338 | default: | |
2339 | /* Both complaints are valid: one gives symbol name, | |
2340 | the other the offending symbol type. */ | |
6c2e7392 PS |
2341 | complain (&unknown_sym_complaint, name); |
2342 | complain (&unknown_st_complaint, sh.st); | |
5f7b2142 ILT |
2343 | cur_sdx++; |
2344 | continue; | |
101f259c | 2345 | } |
5f7b2142 ILT |
2346 | /* Use this gdb symbol */ |
2347 | ADD_PSYMBOL_TO_LIST (name, strlen (name), | |
2348 | VAR_NAMESPACE, class, | |
6c2e7392 | 2349 | objfile->static_psymbols, sh.value, |
5f7b2142 ILT |
2350 | psymtab_language, objfile); |
2351 | skip: | |
2352 | cur_sdx++; /* Go to next file symbol */ | |
817bc7b8 | 2353 | } |
d4ea2aba | 2354 | |
5f7b2142 ILT |
2355 | /* Now do enter the external symbols. */ |
2356 | ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset]; | |
2357 | cur_sdx = fdr_to_pst[f_idx].n_globals; | |
2358 | PST_PRIVATE (save_pst)->extern_count = cur_sdx; | |
2359 | PST_PRIVATE (save_pst)->extern_tab = ext_ptr; | |
2360 | for (; --cur_sdx >= 0; ext_ptr++) | |
2361 | { | |
5f7b2142 | 2362 | enum address_class class; |
6c2e7392 PS |
2363 | SYMR *psh; |
2364 | char *name; | |
5f7b2142 | 2365 | |
6c2e7392 | 2366 | if (ext_ptr->ifd != f_idx) |
5f7b2142 | 2367 | abort (); |
6c2e7392 PS |
2368 | psh = &ext_ptr->asym; |
2369 | switch (psh->st) | |
5f7b2142 ILT |
2370 | { |
2371 | case stProc: | |
2372 | class = LOC_BLOCK; | |
2373 | break; | |
2374 | case stLabel: | |
2375 | class = LOC_LABEL; | |
2376 | break; | |
2377 | default: | |
6c2e7392 PS |
2378 | complain (&unknown_ext_complaint, |
2379 | ecoff_data (cur_bfd)->ssext + psh->iss); | |
5f7b2142 ILT |
2380 | /* Fall through, pretend it's global. */ |
2381 | case stGlobal: | |
2382 | class = LOC_STATIC; | |
2383 | break; | |
d4ea2aba | 2384 | } |
6c2e7392 PS |
2385 | name = ecoff_data (cur_bfd)->ssext + psh->iss; |
2386 | ADD_PSYMBOL_ADDR_TO_LIST (name, strlen (name), | |
2387 | VAR_NAMESPACE, class, | |
2388 | objfile->global_psymbols, (CORE_ADDR) psh->value, | |
2389 | psymtab_language, objfile); | |
7e258d18 | 2390 | } |
bd5635a1 RP |
2391 | } |
2392 | ||
cbba020f PS |
2393 | /* Link pst to FDR. end_psymtab returns NULL if the psymtab was |
2394 | empty and put on the free list. */ | |
2395 | fdr_to_pst[f_idx].pst = end_psymtab (save_pst, | |
2396 | psymtab_include_list, includes_used, | |
2397 | -1, save_pst->texthigh, | |
2398 | dependency_list, dependencies_used); | |
5f7b2142 ILT |
2399 | if (objfile->ei.entry_point >= save_pst->textlow && |
2400 | objfile->ei.entry_point < save_pst->texthigh) | |
2401 | { | |
2402 | objfile->ei.entry_file_lowpc = save_pst->textlow; | |
2403 | objfile->ei.entry_file_highpc = save_pst->texthigh; | |
2404 | } | |
817bc7b8 JG |
2405 | } |
2406 | ||
5f7b2142 ILT |
2407 | /* Now scan the FDRs for dependencies */ |
2408 | for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) | |
2409 | { | |
6c2e7392 | 2410 | fh = f_idx + ecoff_data (cur_bfd)->fdr; |
5f7b2142 ILT |
2411 | pst = fdr_to_pst[f_idx].pst; |
2412 | ||
cbba020f PS |
2413 | if (pst == (struct partial_symtab *)NULL) |
2414 | continue; | |
2415 | ||
5f7b2142 ILT |
2416 | /* This should catch stabs-in-ecoff. */ |
2417 | if (fh->crfd <= 1) | |
2418 | continue; | |
2419 | ||
e7e02420 PS |
2420 | /* Skip the first file indirect entry as it is a self dependency |
2421 | for source files or a reverse .h -> .c dependency for header files. */ | |
cbba020f | 2422 | pst->number_of_dependencies = 0; |
5f7b2142 ILT |
2423 | pst->dependencies = |
2424 | ((struct partial_symtab **) | |
2425 | obstack_alloc (&objfile->psymbol_obstack, | |
e7e02420 | 2426 | ((fh->crfd - 1) |
5f7b2142 | 2427 | * sizeof (struct partial_symtab *)))); |
e7e02420 | 2428 | for (s_idx = 1; s_idx < fh->crfd; s_idx++) |
5f7b2142 | 2429 | { |
6c2e7392 PS |
2430 | RFDT rh; |
2431 | ||
6ac14d25 PS |
2432 | (*swap_rfd_in) (cur_bfd, |
2433 | ((char *) ecoff_data (cur_bfd)->external_rfd | |
2434 | + (fh->rfdBase + s_idx) * external_rfd_size), | |
2435 | &rh); | |
6c2e7392 | 2436 | if (rh < 0 || rh >= hdr->ifdMax) |
5f7b2142 | 2437 | { |
cbba020f PS |
2438 | complain (&bad_file_number_complaint, rh); |
2439 | continue; | |
5f7b2142 | 2440 | } |
6c2e7392 | 2441 | |
e7e02420 | 2442 | /* Skip self dependencies of header files. */ |
cbba020f PS |
2443 | if (rh == f_idx) |
2444 | continue; | |
bd5635a1 | 2445 | |
cbba020f PS |
2446 | /* Do not add to dependeny list if psymtab was empty. */ |
2447 | if (fdr_to_pst[rh].pst == (struct partial_symtab *)NULL) | |
2448 | continue; | |
2449 | pst->dependencies[pst->number_of_dependencies++] = fdr_to_pst[rh].pst; | |
2450 | } | |
2451 | } | |
2452 | do_cleanups (old_chain); | |
bd5635a1 | 2453 | } |
5f7b2142 | 2454 | |
bd5635a1 | 2455 | |
5f7b2142 | 2456 | static char * |
c55e6167 | 2457 | mips_next_symbol_text () |
7e258d18 | 2458 | { |
6c2e7392 PS |
2459 | SYMR sh; |
2460 | ||
5f7b2142 | 2461 | cur_sdx++; |
6ac14d25 PS |
2462 | (*ecoff_backend (cur_bfd)->swap_sym_in) |
2463 | (cur_bfd, | |
2464 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2465 | + ((cur_fdr->isymBase + cur_sdx) | |
2466 | * ecoff_backend (cur_bfd)->external_sym_size)), | |
2467 | &sh); | |
6c2e7392 | 2468 | return ecoff_data (cur_bfd)->ss + cur_fdr->issBase + sh.iss; |
7e258d18 | 2469 | } |
bd5635a1 RP |
2470 | |
2471 | /* Ancillary function to psymtab_to_symtab(). Does all the work | |
2472 | for turning the partial symtab PST into a symtab, recurring | |
3eaebb75 SG |
2473 | first on all dependent psymtabs. The argument FILENAME is |
2474 | only passed so we can see in debug stack traces what file | |
817bc7b8 JG |
2475 | is being read. |
2476 | ||
2477 | This function has a split personality, based on whether the | |
2478 | symbol table contains ordinary ecoff symbols, or stabs-in-ecoff. | |
2479 | The flow of control and even the memory allocation differs. FIXME. */ | |
bd5635a1 | 2480 | |
e072c738 | 2481 | static void |
5f7b2142 | 2482 | psymtab_to_symtab_1 (pst, filename) |
7e258d18 PB |
2483 | struct partial_symtab *pst; |
2484 | char *filename; | |
bd5635a1 | 2485 | { |
6ac14d25 PS |
2486 | const bfd_size_type external_sym_size |
2487 | = ecoff_backend (cur_bfd)->external_sym_size; | |
2488 | const bfd_size_type external_pdr_size | |
2489 | = ecoff_backend (cur_bfd)->external_pdr_size; | |
2490 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2491 | = ecoff_backend (cur_bfd)->swap_sym_in; | |
2492 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
2493 | = ecoff_backend (cur_bfd)->swap_sym_out; | |
2494 | void (* const swap_pdr_in) PARAMS ((bfd *, PTR, PDR *)) | |
2495 | = ecoff_backend (cur_bfd)->swap_pdr_in; | |
5f7b2142 ILT |
2496 | int i; |
2497 | struct symtab *st; | |
2498 | FDR *fh; | |
2499 | struct linetable *lines; | |
7e258d18 | 2500 | |
5f7b2142 ILT |
2501 | if (pst->readin) |
2502 | return; | |
2503 | pst->readin = 1; | |
7e258d18 | 2504 | |
5f7b2142 ILT |
2505 | /* Read in all partial symbtabs on which this one is dependent. |
2506 | NOTE that we do have circular dependencies, sigh. We solved | |
2507 | that by setting pst->readin before this point. */ | |
817bc7b8 | 2508 | |
5f7b2142 ILT |
2509 | for (i = 0; i < pst->number_of_dependencies; i++) |
2510 | if (!pst->dependencies[i]->readin) | |
2511 | { | |
2512 | /* Inform about additional files to be read in. */ | |
2513 | if (info_verbose) | |
2514 | { | |
2515 | fputs_filtered (" ", stdout); | |
2516 | wrap_here (""); | |
2517 | fputs_filtered ("and ", stdout); | |
2518 | wrap_here (""); | |
2519 | printf_filtered ("%s...", | |
2520 | pst->dependencies[i]->filename); | |
2521 | wrap_here (""); /* Flush output */ | |
2522 | fflush (stdout); | |
2523 | } | |
2524 | /* We only pass the filename for debug purposes */ | |
2525 | psymtab_to_symtab_1 (pst->dependencies[i], | |
2526 | pst->dependencies[i]->filename); | |
2527 | } | |
817bc7b8 | 2528 | |
ac8cf67d PS |
2529 | /* Do nothing if this is a dummy psymtab. */ |
2530 | ||
2531 | if (pst->n_global_syms == 0 && pst->n_static_syms == 0 | |
2532 | && pst->textlow == 0 && pst->texthigh == 0) | |
2533 | return; | |
2534 | ||
5f7b2142 | 2535 | /* Now read the symbols for this symtab */ |
817bc7b8 | 2536 | |
ac8cf67d | 2537 | cur_bfd = CUR_BFD (pst); |
5f7b2142 ILT |
2538 | current_objfile = pst->objfile; |
2539 | cur_fd = FDR_IDX (pst); | |
6c2e7392 | 2540 | fh = (cur_fd == -1) ? (FDR *) NULL : ecoff_data (cur_bfd)->fdr + cur_fd; |
5f7b2142 | 2541 | cur_fdr = fh; |
817bc7b8 | 2542 | |
5f7b2142 | 2543 | /* See comment in parse_partial_symbols about the @stabs sentinel. */ |
6c2e7392 PS |
2544 | processing_gcc_compilation = 0; |
2545 | if (fh != (FDR *) NULL && fh->csym >= 2) | |
5f7b2142 | 2546 | { |
6c2e7392 PS |
2547 | SYMR sh; |
2548 | ||
6ac14d25 PS |
2549 | (*swap_sym_in) (cur_bfd, |
2550 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2551 | + (fh->isymBase + 1) * external_sym_size), | |
2552 | &sh); | |
6c2e7392 PS |
2553 | if (STREQ (ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss, |
2554 | stabs_symbol)) | |
2555 | { | |
2556 | /* We indicate that this is a GCC compilation so that certain | |
2557 | features will be enabled in stabsread/dbxread. */ | |
2558 | processing_gcc_compilation = 2; | |
2559 | } | |
2560 | } | |
817bc7b8 | 2561 | |
6c2e7392 PS |
2562 | if (processing_gcc_compilation != 0) |
2563 | { | |
6ac14d25 PS |
2564 | char *pdr_ptr; |
2565 | char *pdr_end; | |
6c2e7392 PS |
2566 | int first_pdr; |
2567 | unsigned long first_off; | |
9adb88b7 | 2568 | |
b5d4d6d7 | 2569 | /* This symbol table contains stabs-in-ecoff entries. */ |
dac4929a | 2570 | |
5f7b2142 | 2571 | /* Parse local symbols first */ |
817bc7b8 | 2572 | |
5f7b2142 ILT |
2573 | if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */ |
2574 | { | |
2575 | current_objfile = NULL; | |
2576 | return; | |
2577 | } | |
2578 | for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++) | |
2579 | { | |
6c2e7392 PS |
2580 | SYMR sh; |
2581 | char *name; | |
2582 | CORE_ADDR valu; | |
2583 | ||
6ac14d25 PS |
2584 | (*swap_sym_in) (cur_bfd, |
2585 | ((char *) ecoff_data (cur_bfd)->external_sym | |
2586 | + (fh->isymBase + cur_sdx) * external_sym_size), | |
2587 | &sh); | |
6c2e7392 PS |
2588 | name = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; |
2589 | valu = sh.value; | |
6ac14d25 | 2590 | if (ECOFF_IS_STAB (&sh)) |
5f7b2142 | 2591 | { |
6ac14d25 | 2592 | int type_code = ECOFF_UNMARK_STAB (sh.index); |
5f7b2142 ILT |
2593 | process_one_symbol (type_code, 0, valu, name, |
2594 | pst->section_offsets, pst->objfile); | |
2595 | if (type_code == N_FUN) | |
2596 | { | |
2597 | /* Make up special symbol to contain | |
2598 | procedure specific info */ | |
2599 | struct mips_extra_func_info *e = | |
6c2e7392 PS |
2600 | ((struct mips_extra_func_info *) |
2601 | obstack_alloc (¤t_objfile->symbol_obstack, | |
2602 | sizeof (struct mips_extra_func_info))); | |
5f7b2142 ILT |
2603 | struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME); |
2604 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
2605 | SYMBOL_CLASS (s) = LOC_CONST; | |
2606 | SYMBOL_TYPE (s) = builtin_type_void; | |
2607 | SYMBOL_VALUE (s) = (int) e; | |
2608 | add_symbol_to_list (s, &local_symbols); | |
817bc7b8 JG |
2609 | } |
2610 | } | |
6c2e7392 | 2611 | else if (sh.st == stLabel && sh.index != indexNil) |
5f7b2142 ILT |
2612 | { |
2613 | /* Handle encoded stab line number. */ | |
6c2e7392 | 2614 | record_line (current_subfile, sh.index, valu); |
817bc7b8 | 2615 | } |
0b0d6c3f PS |
2616 | else if (sh.st == stProc || sh.st == stStaticProc || sh.st == stEnd) |
2617 | /* These are generated by gcc-2.x, do not complain */ | |
2618 | ; | |
5f7b2142 | 2619 | else |
6c2e7392 | 2620 | complain (&stab_unknown_complaint, name); |
817bc7b8 | 2621 | } |
0b0d6c3f | 2622 | st = end_symtab (pst->texthigh, 0, 0, pst->objfile, SECT_OFF_TEXT); |
5f7b2142 | 2623 | end_stabs (); |
817bc7b8 | 2624 | |
5f7b2142 ILT |
2625 | /* Sort the symbol table now, we are done adding symbols to it. |
2626 | We must do this before parse_procedure calls lookup_symbol. */ | |
2627 | sort_symtab_syms (st); | |
817bc7b8 | 2628 | |
5f7b2142 ILT |
2629 | /* This may not be necessary for stabs symtabs. FIXME. */ |
2630 | sort_blocks (st); | |
817bc7b8 | 2631 | |
6c2e7392 PS |
2632 | /* Fill in procedure info next. */ |
2633 | first_pdr = 1; | |
6ac14d25 PS |
2634 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2635 | + fh->ipdFirst * external_pdr_size); | |
2636 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
2637 | for (; pdr_ptr < pdr_end; pdr_ptr += external_pdr_size) | |
5f7b2142 | 2638 | { |
6c2e7392 PS |
2639 | PDR pr; |
2640 | ||
6ac14d25 | 2641 | (*swap_pdr_in) (cur_bfd, pdr_ptr, &pr); |
6c2e7392 PS |
2642 | if (first_pdr) |
2643 | { | |
2644 | first_off = pr.adr; | |
2645 | first_pdr = 0; | |
2646 | } | |
b5d4d6d7 | 2647 | parse_procedure (&pr, st, first_off); |
817bc7b8 | 2648 | } |
5f7b2142 ILT |
2649 | } |
2650 | else | |
2651 | { | |
6c2e7392 | 2652 | /* This symbol table contains ordinary ecoff entries. */ |
817bc7b8 | 2653 | |
5f7b2142 | 2654 | /* FIXME: doesn't use pst->section_offsets. */ |
dac4929a | 2655 | |
5f7b2142 ILT |
2656 | int f_max; |
2657 | int maxlines; | |
6c2e7392 | 2658 | EXTR *ext_ptr; |
85f0a848 | 2659 | |
5f7b2142 ILT |
2660 | /* How many symbols will we need */ |
2661 | /* FIXME, this does not count enum values. */ | |
2662 | f_max = pst->n_global_syms + pst->n_static_syms; | |
2663 | if (fh == 0) | |
2664 | { | |
2665 | maxlines = 0; | |
2666 | st = new_symtab ("unknown", f_max, 0, pst->objfile); | |
2667 | } | |
2668 | else | |
2669 | { | |
2670 | f_max += fh->csym + fh->cpd; | |
2671 | maxlines = 2 * fh->cline; | |
2672 | st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile); | |
cbba020f PS |
2673 | |
2674 | /* The proper language was already determined when building | |
2675 | the psymtab, use it. */ | |
2676 | st->language = PST_PRIVATE (pst)->pst_language; | |
817bc7b8 JG |
2677 | } |
2678 | ||
018ab14f PS |
2679 | psymtab_language = st->language; |
2680 | ||
5f7b2142 | 2681 | lines = LINETABLE (st); |
817bc7b8 | 2682 | |
5f7b2142 ILT |
2683 | /* Get a new lexical context */ |
2684 | ||
2685 | push_parse_stack (); | |
2686 | top_stack->cur_st = st; | |
2687 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st), | |
2688 | STATIC_BLOCK); | |
2689 | BLOCK_START (top_stack->cur_block) = fh ? fh->adr : 0; | |
2690 | BLOCK_END (top_stack->cur_block) = 0; | |
2691 | top_stack->blocktype = stFile; | |
2692 | top_stack->maxsyms = 2 * f_max; | |
2693 | top_stack->cur_type = 0; | |
2694 | top_stack->procadr = 0; | |
2695 | top_stack->numargs = 0; | |
2696 | ||
2697 | if (fh) | |
2698 | { | |
6ac14d25 PS |
2699 | char *sym_ptr; |
2700 | char *sym_end; | |
5f7b2142 ILT |
2701 | |
2702 | /* Parse local symbols first */ | |
6ac14d25 PS |
2703 | sym_ptr = ((char *) ecoff_data (cur_bfd)->external_sym |
2704 | + fh->isymBase * external_sym_size); | |
2705 | sym_end = sym_ptr + fh->csym * external_sym_size; | |
6c2e7392 | 2706 | while (sym_ptr < sym_end) |
5f7b2142 | 2707 | { |
6c2e7392 PS |
2708 | SYMR sh; |
2709 | int c; | |
2710 | ||
6ac14d25 | 2711 | (*swap_sym_in) (cur_bfd, sym_ptr, &sh); |
6c2e7392 PS |
2712 | c = parse_symbol (&sh, |
2713 | (ecoff_data (cur_bfd)->external_aux | |
2714 | + fh->iauxBase), | |
2715 | sym_ptr, fh->fBigendian); | |
2716 | /* FIXME: We must swap the modified symbol back out, | |
2717 | although we would rather not. See parse_symbol. */ | |
6ac14d25 PS |
2718 | (*swap_sym_out) (cur_bfd, &sh, sym_ptr); |
2719 | sym_ptr += c * external_sym_size; | |
7e258d18 | 2720 | } |
bd5635a1 | 2721 | |
6c2e7392 PS |
2722 | /* Linenumbers. At the end, check if we can save memory. |
2723 | parse_lines has to look ahead an arbitrary number of PDR | |
2724 | structures, so we swap them all first. */ | |
2725 | if (fh->cpd > 0) | |
5f7b2142 | 2726 | { |
6c2e7392 PS |
2727 | PDR *pr_block; |
2728 | struct cleanup *old_chain; | |
6ac14d25 PS |
2729 | char *pdr_ptr; |
2730 | char *pdr_end; | |
6c2e7392 PS |
2731 | PDR *pdr_in; |
2732 | PDR *pdr_in_end; | |
2733 | ||
2734 | pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR)); | |
2735 | ||
2736 | old_chain = make_cleanup (free, pr_block); | |
2737 | ||
6ac14d25 PS |
2738 | pdr_ptr = ((char *) ecoff_data (cur_bfd)->external_pdr |
2739 | + fh->ipdFirst * external_pdr_size); | |
2740 | pdr_end = pdr_ptr + fh->cpd * external_pdr_size; | |
6c2e7392 | 2741 | pdr_in = pr_block; |
6ac14d25 PS |
2742 | for (; |
2743 | pdr_ptr < pdr_end; | |
2744 | pdr_ptr += external_pdr_size, pdr_in++) | |
2745 | (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in); | |
6c2e7392 PS |
2746 | |
2747 | parse_lines (fh, pr_block, lines); | |
2748 | if (lines->nitems < fh->cline) | |
2749 | lines = shrink_linetable (lines); | |
2750 | ||
2751 | /* Fill in procedure info next. */ | |
2752 | pdr_in = pr_block; | |
2753 | pdr_in_end = pdr_in + fh->cpd; | |
2754 | for (; pdr_in < pdr_in_end; pdr_in++) | |
2755 | parse_procedure (pdr_in, 0, pr_block->adr); | |
2756 | ||
2757 | do_cleanups (old_chain); | |
817bc7b8 | 2758 | } |
ad142b8e | 2759 | } |
817bc7b8 | 2760 | |
5f7b2142 ILT |
2761 | LINETABLE (st) = lines; |
2762 | ||
2763 | /* .. and our share of externals. | |
2764 | XXX use the global list to speed up things here. how? | |
2765 | FIXME, Maybe quit once we have found the right number of ext's? */ | |
2766 | top_stack->cur_st = st; | |
2767 | top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st), | |
2768 | GLOBAL_BLOCK); | |
2769 | top_stack->blocktype = stFile; | |
6c2e7392 PS |
2770 | top_stack->maxsyms = (ecoff_data (cur_bfd)->symbolic_header.isymMax |
2771 | + ecoff_data (cur_bfd)->symbolic_header.ipdMax | |
2772 | + ecoff_data (cur_bfd)->symbolic_header.iextMax); | |
5f7b2142 ILT |
2773 | |
2774 | ext_ptr = PST_PRIVATE (pst)->extern_tab; | |
2775 | for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++) | |
6c2e7392 | 2776 | parse_external (ext_ptr, 1, fh->fBigendian); |
5f7b2142 ILT |
2777 | |
2778 | /* If there are undefined, tell the user */ | |
2779 | if (n_undef_symbols) | |
2780 | { | |
2781 | printf_filtered ("File %s contains %d unresolved references:", | |
2782 | st->filename, n_undef_symbols); | |
2783 | printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n", | |
2784 | n_undef_vars, n_undef_procs, n_undef_labels); | |
2785 | n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0; | |
bd5635a1 | 2786 | |
7e258d18 | 2787 | } |
5f7b2142 | 2788 | pop_parse_stack (); |
817bc7b8 | 2789 | |
5f7b2142 ILT |
2790 | /* Sort the symbol table now, we are done adding symbols to it.*/ |
2791 | sort_symtab_syms (st); | |
817bc7b8 | 2792 | |
5f7b2142 | 2793 | sort_blocks (st); |
7e258d18 | 2794 | } |
7e258d18 | 2795 | |
5f7b2142 ILT |
2796 | /* Now link the psymtab and the symtab. */ |
2797 | pst->symtab = st; | |
021959e2 | 2798 | |
5f7b2142 | 2799 | current_objfile = NULL; |
101f259c | 2800 | } |
bd5635a1 RP |
2801 | \f |
2802 | /* Ancillary parsing procedures. */ | |
2803 | ||
2804 | /* Lookup the type at relative index RN. Return it in TPP | |
2805 | if found and in any event come up with its name PNAME. | |
d747e0af MT |
2806 | BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian). |
2807 | Return value says how many aux symbols we ate. */ | |
bd5635a1 | 2808 | |
d747e0af | 2809 | static int |
cbba020f | 2810 | cross_ref (ax, tpp, type_code, pname, bigend, sym_name) |
d747e0af | 2811 | union aux_ext *ax; |
7e258d18 | 2812 | struct type **tpp; |
5f7b2142 | 2813 | enum type_code type_code; /* Use to alloc new type if none is found. */ |
7e258d18 | 2814 | char **pname; |
d747e0af | 2815 | int bigend; |
cbba020f | 2816 | char *sym_name; |
bd5635a1 | 2817 | { |
5f7b2142 | 2818 | RNDXR rn[1]; |
6ac14d25 | 2819 | unsigned int rf; |
5f7b2142 | 2820 | int result = 1; |
bd5635a1 | 2821 | |
6c2e7392 | 2822 | ecoff_swap_rndx_in (bigend, &ax->a_rndx, rn); |
5f7b2142 ILT |
2823 | |
2824 | /* Escape index means 'the next one' */ | |
2825 | if (rn->rfd == 0xfff) | |
2826 | { | |
2827 | result++; | |
2828 | rf = AUX_GET_ISYM (bigend, ax + 1); | |
2829 | } | |
2830 | else | |
2831 | { | |
2832 | rf = rn->rfd; | |
2833 | } | |
2834 | ||
2835 | if (rf == -1) | |
2836 | { | |
2837 | /* Ooops */ | |
2838 | *pname = "<undefined>"; | |
2839 | } | |
2840 | else | |
2841 | { | |
2842 | /* | |
2843 | * Find the relative file descriptor and the symbol in it | |
2844 | */ | |
2845 | FDR *fh = get_rfd (cur_fd, rf); | |
6ac14d25 | 2846 | char *esh; |
6c2e7392 | 2847 | SYMR sh; |
5f7b2142 ILT |
2848 | struct type *t; |
2849 | ||
6ac14d25 PS |
2850 | if (rn->index >= fh->csym) |
2851 | { | |
2852 | /* File indirect entry is corrupt. */ | |
2853 | *tpp = (struct type *)NULL; | |
2854 | *pname = "<illegal>"; | |
2855 | complain (&bad_rfd_entry_complaint, | |
cbba020f | 2856 | sym_name, fh - ecoff_data (cur_bfd)->fdr, rn->index); |
6ac14d25 PS |
2857 | return result; |
2858 | } | |
2859 | ||
6c2e7392 PS |
2860 | /* If we have processed this symbol then we left a forwarding |
2861 | pointer to the corresponding GDB symbol. If not, we`ll put | |
2862 | it in a list of pending symbols, to be processed later when | |
2863 | the file will be. In any event, we collect the name for the | |
2864 | type here. Which is why we made a first pass at strings. */ | |
2865 | ||
6ac14d25 PS |
2866 | esh = ((char *) ecoff_data (cur_bfd)->external_sym |
2867 | + ((fh->isymBase + rn->index) | |
2868 | * ecoff_backend (cur_bfd)->external_sym_size)); | |
2869 | (*ecoff_backend (cur_bfd)->swap_sym_in) (cur_bfd, esh, &sh); | |
5f7b2142 ILT |
2870 | |
2871 | /* Careful, we might be looking at .o files */ | |
6c2e7392 PS |
2872 | if (sh.iss == 0) |
2873 | *pname = "<undefined>"; | |
28d14fd8 JK |
2874 | else if (rn->rfd == 0xfff && rn->index == 0) |
2875 | /* For structs, unions and enums, rn->rfd is 0xfff and the index | |
2876 | is a relative symbol number for the type, but an index of 0 | |
2877 | seems to mean that we don't know. This is said to fix a problem | |
2878 | with "info func opendir" on an SGI showing | |
2879 | "struct BSDopendir.c *BSDopendir();". */ | |
6ac14d25 PS |
2880 | { |
2881 | *tpp = (struct type *)NULL; | |
2882 | *pname = "<unknown>"; | |
2883 | return result; | |
2884 | } | |
2885 | else if ((sh.st != stBlock && sh.st != stTypedef && sh.st != stParsed) | |
2886 | || sh.sc != scInfo) | |
2887 | { | |
2888 | /* File indirect entry is corrupt. */ | |
2889 | *tpp = (struct type *)NULL; | |
2890 | *pname = "<illegal>"; | |
2891 | complain (&bad_rfd_entry_complaint, | |
cbba020f | 2892 | sym_name, fh - ecoff_data (cur_bfd)->fdr, rn->index); |
6ac14d25 PS |
2893 | return result; |
2894 | } | |
6c2e7392 PS |
2895 | else |
2896 | *pname = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss; | |
5f7b2142 ILT |
2897 | |
2898 | /* Have we parsed it ? */ | |
6c2e7392 | 2899 | if (sh.value != 0 && sh.st == stParsed) |
5f7b2142 | 2900 | { |
6c2e7392 | 2901 | t = (struct type *) sh.value; |
5f7b2142 | 2902 | *tpp = t; |
bd5635a1 | 2903 | } |
5f7b2142 ILT |
2904 | else |
2905 | { | |
2906 | /* Avoid duplicates */ | |
6c2e7392 | 2907 | struct mips_pending *p = is_pending_symbol (fh, esh); |
5f7b2142 ILT |
2908 | if (p) |
2909 | *tpp = p->t; | |
2910 | else | |
2911 | { | |
2912 | *tpp = init_type (type_code, 0, 0, (char *) NULL, | |
2913 | (struct objfile *) NULL); | |
6c2e7392 | 2914 | add_pending (fh, esh, *tpp); |
5f7b2142 ILT |
2915 | } |
2916 | } | |
2917 | } | |
3eaebb75 | 2918 | |
5f7b2142 ILT |
2919 | /* We used one auxent normally, two if we got a "next one" rf. */ |
2920 | return result; | |
bd5635a1 RP |
2921 | } |
2922 | ||
2923 | ||
2924 | /* Quick&dirty lookup procedure, to avoid the MI ones that require | |
2925 | keeping the symtab sorted */ | |
2926 | ||
2927 | static struct symbol * | |
2928 | mylookup_symbol (name, block, namespace, class) | |
2929 | char *name; | |
2930 | register struct block *block; | |
2931 | enum namespace namespace; | |
2932 | enum address_class class; | |
2933 | { | |
5f7b2142 ILT |
2934 | register int bot, top, inc; |
2935 | register struct symbol *sym; | |
2936 | ||
2937 | bot = 0; | |
2938 | top = BLOCK_NSYMS (block); | |
2939 | inc = name[0]; | |
2940 | while (bot < top) | |
2941 | { | |
2942 | sym = BLOCK_SYM (block, bot); | |
2943 | if (SYMBOL_NAME (sym)[0] == inc | |
2944 | && SYMBOL_NAMESPACE (sym) == namespace | |
2945 | && SYMBOL_CLASS (sym) == class | |
4fb0ff3b | 2946 | && strcmp (SYMBOL_NAME (sym), name) == 0) |
5f7b2142 ILT |
2947 | return sym; |
2948 | bot++; | |
2949 | } | |
2950 | block = BLOCK_SUPERBLOCK (block); | |
2951 | if (block) | |
2952 | return mylookup_symbol (name, block, namespace, class); | |
2953 | return 0; | |
bd5635a1 RP |
2954 | } |
2955 | ||
2956 | ||
3eaebb75 SG |
2957 | /* Add a new symbol S to a block B. |
2958 | Infrequently, we will need to reallocate the block to make it bigger. | |
2959 | We only detect this case when adding to top_stack->cur_block, since | |
2960 | that's the only time we know how big the block is. FIXME. */ | |
bd5635a1 | 2961 | |
3eaebb75 | 2962 | static void |
5f7b2142 ILT |
2963 | add_symbol (s, b) |
2964 | struct symbol *s; | |
2965 | struct block *b; | |
bd5635a1 | 2966 | { |
5f7b2142 ILT |
2967 | int nsyms = BLOCK_NSYMS (b)++; |
2968 | struct block *origb; | |
2969 | struct parse_stack *stackp; | |
2970 | ||
2971 | if (b == top_stack->cur_block && | |
2972 | nsyms >= top_stack->maxsyms) | |
2973 | { | |
2974 | complain (&block_overflow_complaint, SYMBOL_NAME (s)); | |
2975 | /* In this case shrink_block is actually grow_block, since | |
3eaebb75 | 2976 | BLOCK_NSYMS(b) is larger than its current size. */ |
5f7b2142 ILT |
2977 | origb = b; |
2978 | b = shrink_block (top_stack->cur_block, top_stack->cur_st); | |
2979 | ||
2980 | /* Now run through the stack replacing pointers to the | |
2981 | original block. shrink_block has already done this | |
2982 | for the blockvector and BLOCK_FUNCTION. */ | |
2983 | for (stackp = top_stack; stackp; stackp = stackp->next) | |
2984 | { | |
2985 | if (stackp->cur_block == origb) | |
2986 | { | |
2987 | stackp->cur_block = b; | |
2988 | stackp->maxsyms = BLOCK_NSYMS (b); | |
2989 | } | |
3eaebb75 | 2990 | } |
5f7b2142 ILT |
2991 | } |
2992 | BLOCK_SYM (b, nsyms) = s; | |
bd5635a1 RP |
2993 | } |
2994 | ||
2995 | /* Add a new block B to a symtab S */ | |
2996 | ||
3eaebb75 | 2997 | static void |
5f7b2142 ILT |
2998 | add_block (b, s) |
2999 | struct block *b; | |
3000 | struct symtab *s; | |
bd5635a1 | 3001 | { |
5f7b2142 | 3002 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3003 | |
5f7b2142 | 3004 | bv = (struct blockvector *) xrealloc ((PTR) bv, |
6c2e7392 PS |
3005 | (sizeof (struct blockvector) |
3006 | + BLOCKVECTOR_NBLOCKS (bv) | |
3007 | * sizeof (bv->block))); | |
5f7b2142 ILT |
3008 | if (bv != BLOCKVECTOR (s)) |
3009 | BLOCKVECTOR (s) = bv; | |
bd5635a1 | 3010 | |
5f7b2142 | 3011 | BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b; |
bd5635a1 RP |
3012 | } |
3013 | ||
3014 | /* Add a new linenumber entry (LINENO,ADR) to a linevector LT. | |
3015 | MIPS' linenumber encoding might need more than one byte | |
e157305c PS |
3016 | to describe it, LAST is used to detect these continuation lines. |
3017 | ||
3018 | Combining lines with the same line number seems like a bad idea. | |
3019 | E.g: There could be a line number entry with the same line number after the | |
3020 | prologue and GDB should not ignore it (this is a better way to find | |
3021 | a prologue than mips_skip_prologue). | |
3022 | But due to the compressed line table format there are line number entries | |
3023 | for the same line which are needed to bridge the gap to the next | |
3024 | line number entry. These entries have a bogus address info with them | |
3025 | and we are unable to tell them from intended duplicate line number | |
3026 | entries. | |
3027 | This is another reason why -ggdb debugging format is preferable. */ | |
bd5635a1 | 3028 | |
3eaebb75 | 3029 | static int |
5f7b2142 ILT |
3030 | add_line (lt, lineno, adr, last) |
3031 | struct linetable *lt; | |
3032 | int lineno; | |
3033 | CORE_ADDR adr; | |
3034 | int last; | |
bd5635a1 | 3035 | { |
5f7b2142 ILT |
3036 | if (last == 0) |
3037 | last = -2; /* make sure we record first line */ | |
bd5635a1 | 3038 | |
5f7b2142 ILT |
3039 | if (last == lineno) /* skip continuation lines */ |
3040 | return lineno; | |
bd5635a1 | 3041 | |
5f7b2142 ILT |
3042 | lt->item[lt->nitems].line = lineno; |
3043 | lt->item[lt->nitems++].pc = adr << 2; | |
3044 | return lineno; | |
bd5635a1 | 3045 | } |
bd5635a1 | 3046 | \f |
84ffdec2 | 3047 | /* Sorting and reordering procedures */ |
bd5635a1 | 3048 | |
bd5635a1 RP |
3049 | /* Blocks with a smaller low bound should come first */ |
3050 | ||
84ffdec2 | 3051 | static int |
5f7b2142 | 3052 | compare_blocks (arg1, arg2) |
391ca579 | 3053 | const void *arg1, *arg2; |
bd5635a1 | 3054 | { |
5f7b2142 ILT |
3055 | register int addr_diff; |
3056 | struct block **b1 = (struct block **) arg1; | |
3057 | struct block **b2 = (struct block **) arg2; | |
3058 | ||
3059 | addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2))); | |
3060 | if (addr_diff == 0) | |
5f5341a7 | 3061 | return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1))); |
5f7b2142 | 3062 | return addr_diff; |
bd5635a1 RP |
3063 | } |
3064 | ||
bd5635a1 RP |
3065 | /* Sort the blocks of a symtab S. |
3066 | Reorder the blocks in the blockvector by code-address, | |
3067 | as required by some MI search routines */ | |
3068 | ||
e072c738 | 3069 | static void |
5f7b2142 ILT |
3070 | sort_blocks (s) |
3071 | struct symtab *s; | |
bd5635a1 | 3072 | { |
5f7b2142 | 3073 | struct blockvector *bv = BLOCKVECTOR (s); |
bd5635a1 | 3074 | |
5f7b2142 ILT |
3075 | if (BLOCKVECTOR_NBLOCKS (bv) <= 2) |
3076 | { | |
3077 | /* Cosmetic */ | |
3078 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0) | |
3079 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0; | |
3080 | if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0) | |
3081 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0; | |
3082 | return; | |
3083 | } | |
3084 | /* | |
3085 | * This is very unfortunate: normally all functions are compiled in | |
3086 | * the order they are found, but if the file is compiled -O3 things | |
3087 | * are very different. It would be nice to find a reliable test | |
3088 | * to detect -O3 images in advance. | |
3089 | */ | |
3090 | if (BLOCKVECTOR_NBLOCKS (bv) > 3) | |
3091 | qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK), | |
3092 | BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK, | |
3093 | sizeof (struct block *), | |
3094 | compare_blocks); | |
3095 | ||
3096 | { | |
3097 | register CORE_ADDR high = 0; | |
3098 | register int i, j = BLOCKVECTOR_NBLOCKS (bv); | |
3099 | ||
3100 | for (i = FIRST_LOCAL_BLOCK; i < j; i++) | |
3101 | if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i))) | |
3102 | high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)); | |
3103 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high; | |
3104 | } | |
3105 | ||
3106 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = | |
3107 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK)); | |
3108 | ||
3109 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3110 | BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3111 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = | |
3112 | BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 | 3113 | } |
bd5635a1 | 3114 | \f |
5f7b2142 | 3115 | |
bd5635a1 RP |
3116 | /* Constructor/restructor/destructor procedures */ |
3117 | ||
3118 | /* Allocate a new symtab for NAME. Needs an estimate of how many symbols | |
3119 | MAXSYMS and linenumbers MAXLINES we'll put in it */ | |
3120 | ||
4ad1963e | 3121 | static struct symtab * |
5f7b2142 ILT |
3122 | new_symtab (name, maxsyms, maxlines, objfile) |
3123 | char *name; | |
3124 | int maxsyms; | |
3125 | int maxlines; | |
3126 | struct objfile *objfile; | |
bd5635a1 | 3127 | { |
021959e2 | 3128 | struct symtab *s = allocate_symtab (name, objfile); |
bd5635a1 | 3129 | |
5f7b2142 | 3130 | LINETABLE (s) = new_linetable (maxlines); |
bd5635a1 | 3131 | |
021959e2 | 3132 | /* All symtabs must have at least two blocks */ |
5f7b2142 ILT |
3133 | BLOCKVECTOR (s) = new_bvect (2); |
3134 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms); | |
3135 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms); | |
3136 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) = | |
3137 | BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
bd5635a1 | 3138 | |
021959e2 | 3139 | s->free_code = free_linetable; |
bd5635a1 | 3140 | |
021959e2 | 3141 | return (s); |
bd5635a1 RP |
3142 | } |
3143 | ||
bd5635a1 RP |
3144 | /* Allocate a new partial_symtab NAME */ |
3145 | ||
3146 | static struct partial_symtab * | |
5f7b2142 ILT |
3147 | new_psymtab (name, objfile) |
3148 | char *name; | |
3149 | struct objfile *objfile; | |
bd5635a1 | 3150 | { |
021959e2 | 3151 | struct partial_symtab *psymtab; |
817bc7b8 | 3152 | |
6c2e7392 | 3153 | psymtab = allocate_psymtab (name, objfile); |
817bc7b8 | 3154 | |
021959e2 | 3155 | /* Keep a backpointer to the file's symbols */ |
bd5635a1 | 3156 | |
5f7b2142 ILT |
3157 | psymtab->read_symtab_private = ((char *) |
3158 | obstack_alloc (&objfile->psymbol_obstack, | |
3159 | sizeof (struct symloc))); | |
6c2e7392 PS |
3160 | memset ((PTR) psymtab->read_symtab_private, 0, sizeof (struct symloc)); |
3161 | CUR_BFD (psymtab) = cur_bfd; | |
817bc7b8 | 3162 | |
021959e2 JG |
3163 | /* The way to turn this into a symtab is to call... */ |
3164 | psymtab->read_symtab = mipscoff_psymtab_to_symtab; | |
3165 | return (psymtab); | |
bd5635a1 RP |
3166 | } |
3167 | ||
3168 | ||
84ffdec2 | 3169 | /* Allocate a linetable array of the given SIZE. Since the struct |
817bc7b8 | 3170 | already includes one item, we subtract one when calculating the |
84ffdec2 | 3171 | proper size to allocate. */ |
bd5635a1 | 3172 | |
7e258d18 | 3173 | static struct linetable * |
5f7b2142 ILT |
3174 | new_linetable (size) |
3175 | int size; | |
bd5635a1 | 3176 | { |
5f7b2142 | 3177 | struct linetable *l; |
bd5635a1 | 3178 | |
5f7b2142 ILT |
3179 | size = (size - 1) * sizeof (l->item) + sizeof (struct linetable); |
3180 | l = (struct linetable *) xmalloc (size); | |
3181 | l->nitems = 0; | |
3182 | return l; | |
bd5635a1 RP |
3183 | } |
3184 | ||
3185 | /* Oops, too big. Shrink it. This was important with the 2.4 linetables, | |
84ffdec2 JG |
3186 | I am not so sure about the 3.4 ones. |
3187 | ||
3188 | Since the struct linetable already includes one item, we subtract one when | |
3189 | calculating the proper size to allocate. */ | |
bd5635a1 | 3190 | |
7e258d18 | 3191 | static struct linetable * |
5f7b2142 ILT |
3192 | shrink_linetable (lt) |
3193 | struct linetable *lt; | |
bd5635a1 | 3194 | { |
bd5635a1 | 3195 | |
5f7b2142 | 3196 | return (struct linetable *) xrealloc ((PTR) lt, |
6c2e7392 PS |
3197 | (sizeof (struct linetable) |
3198 | + ((lt->nitems - 1) | |
3199 | * sizeof (lt->item)))); | |
bd5635a1 RP |
3200 | } |
3201 | ||
3202 | /* Allocate and zero a new blockvector of NBLOCKS blocks. */ | |
3203 | ||
4ad1963e | 3204 | static struct blockvector * |
5f7b2142 ILT |
3205 | new_bvect (nblocks) |
3206 | int nblocks; | |
bd5635a1 | 3207 | { |
5f7b2142 ILT |
3208 | struct blockvector *bv; |
3209 | int size; | |
bd5635a1 | 3210 | |
5f7b2142 ILT |
3211 | size = sizeof (struct blockvector) + nblocks * sizeof (struct block *); |
3212 | bv = (struct blockvector *) xzalloc (size); | |
bd5635a1 | 3213 | |
5f7b2142 | 3214 | BLOCKVECTOR_NBLOCKS (bv) = nblocks; |
bd5635a1 | 3215 | |
5f7b2142 | 3216 | return bv; |
bd5635a1 RP |
3217 | } |
3218 | ||
3219 | /* Allocate and zero a new block of MAXSYMS symbols */ | |
3220 | ||
4ad1963e | 3221 | static struct block * |
5f7b2142 ILT |
3222 | new_block (maxsyms) |
3223 | int maxsyms; | |
bd5635a1 | 3224 | { |
5f7b2142 | 3225 | int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *); |
bd5635a1 | 3226 | |
5f7b2142 | 3227 | return (struct block *) xzalloc (size); |
bd5635a1 RP |
3228 | } |
3229 | ||
3eaebb75 SG |
3230 | /* Ooops, too big. Shrink block B in symtab S to its minimal size. |
3231 | Shrink_block can also be used by add_symbol to grow a block. */ | |
bd5635a1 RP |
3232 | |
3233 | static struct block * | |
5f7b2142 ILT |
3234 | shrink_block (b, s) |
3235 | struct block *b; | |
3236 | struct symtab *s; | |
bd5635a1 | 3237 | { |
5f7b2142 ILT |
3238 | struct block *new; |
3239 | struct blockvector *bv = BLOCKVECTOR (s); | |
3240 | int i; | |
bd5635a1 | 3241 | |
5f7b2142 | 3242 | /* Just reallocate it and fix references to the old one */ |
bd5635a1 | 3243 | |
6c2e7392 PS |
3244 | new = (struct block *) xrealloc ((PTR) b, |
3245 | (sizeof (struct block) | |
3246 | + ((BLOCK_NSYMS (b) - 1) | |
3247 | * sizeof (struct symbol *)))); | |
bd5635a1 | 3248 | |
5f7b2142 | 3249 | /* Should chase pointers to old one. Fortunately, that`s just |
bd5635a1 | 3250 | the block`s function and inferior blocks */ |
5f7b2142 ILT |
3251 | if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b) |
3252 | SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new; | |
3253 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++) | |
3254 | if (BLOCKVECTOR_BLOCK (bv, i) == b) | |
3255 | BLOCKVECTOR_BLOCK (bv, i) = new; | |
3256 | else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b) | |
3257 | BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new; | |
3258 | return new; | |
bd5635a1 RP |
3259 | } |
3260 | ||
3261 | /* Create a new symbol with printname NAME */ | |
3262 | ||
4ad1963e | 3263 | static struct symbol * |
5f7b2142 ILT |
3264 | new_symbol (name) |
3265 | char *name; | |
bd5635a1 | 3266 | { |
6c2e7392 PS |
3267 | struct symbol *s = ((struct symbol *) |
3268 | obstack_alloc (¤t_objfile->symbol_obstack, | |
3269 | sizeof (struct symbol))); | |
bd5635a1 | 3270 | |
5f7b2142 ILT |
3271 | memset ((PTR) s, 0, sizeof (*s)); |
3272 | SYMBOL_NAME (s) = name; | |
018ab14f PS |
3273 | SYMBOL_LANGUAGE (s) = psymtab_language; |
3274 | SYMBOL_INIT_DEMANGLED_NAME (s, ¤t_objfile->symbol_obstack); | |
5f7b2142 | 3275 | return s; |
bd5635a1 RP |
3276 | } |
3277 | ||
3278 | /* Create a new type with printname NAME */ | |
3279 | ||
4ad1963e | 3280 | static struct type * |
5f7b2142 ILT |
3281 | new_type (name) |
3282 | char *name; | |
bd5635a1 | 3283 | { |
5f7b2142 | 3284 | struct type *t; |
bd5635a1 | 3285 | |
5f7b2142 ILT |
3286 | t = alloc_type (current_objfile); |
3287 | TYPE_NAME (t) = name; | |
6c2e7392 | 3288 | TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default; |
5f7b2142 | 3289 | return t; |
bd5635a1 | 3290 | } |
bd5635a1 | 3291 | \f |
5f7b2142 | 3292 | |
bd5635a1 RP |
3293 | /* Things used for calling functions in the inferior. |
3294 | These functions are exported to our companion | |
7e258d18 | 3295 | mips-tdep.c file and are here because they play |
bd5635a1 RP |
3296 | with the symbol-table explicitly. */ |
3297 | ||
bd5635a1 RP |
3298 | /* Sigtramp: make sure we have all the necessary information |
3299 | about the signal trampoline code. Since the official code | |
3300 | from MIPS does not do so, we make up that information ourselves. | |
3301 | If they fix the library (unlikely) this code will neutralize itself. */ | |
3302 | ||
d747e0af | 3303 | static void |
5f7b2142 | 3304 | fixup_sigtramp () |
bd5635a1 | 3305 | { |
5f7b2142 ILT |
3306 | struct symbol *s; |
3307 | struct symtab *st; | |
3308 | struct block *b, *b0; | |
bd5635a1 | 3309 | |
5f7b2142 | 3310 | sigtramp_address = -1; |
bd5635a1 | 3311 | |
7cf92dd2 PS |
3312 | /* We have to handle the following cases here: |
3313 | a) The Mips library has a sigtramp label within sigvec. | |
3314 | b) Irix has a _sigtramp which we want to use, but it also has sigvec. */ | |
5f7b2142 | 3315 | s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL); |
7cf92dd2 | 3316 | if (s != 0) |
5f7b2142 ILT |
3317 | { |
3318 | b0 = SYMBOL_BLOCK_VALUE (s); | |
5f7b2142 ILT |
3319 | s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL); |
3320 | } | |
7cf92dd2 PS |
3321 | if (s == 0) |
3322 | { | |
3323 | /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */ | |
3324 | s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL); | |
3325 | } | |
4ad1963e | 3326 | |
5f7b2142 ILT |
3327 | /* But maybe this program uses its own version of sigvec */ |
3328 | if (s == 0) | |
3329 | return; | |
bd5635a1 | 3330 | |
5f7b2142 ILT |
3331 | /* Did we or MIPSco fix the library ? */ |
3332 | if (SYMBOL_CLASS (s) == LOC_BLOCK) | |
3333 | { | |
3334 | sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s)); | |
3335 | sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s)); | |
3336 | return; | |
3337 | } | |
bd5635a1 | 3338 | |
5f7b2142 ILT |
3339 | sigtramp_address = SYMBOL_VALUE (s); |
3340 | sigtramp_end = sigtramp_address + 0x88; /* black magic */ | |
3341 | ||
3342 | /* But what symtab does it live in ? */ | |
3343 | st = find_pc_symtab (SYMBOL_VALUE (s)); | |
3344 | ||
3345 | /* | |
3346 | * Ok, there goes the fix: turn it into a procedure, with all the | |
3347 | * needed info. Note we make it a nested procedure of sigvec, | |
3348 | * which is the way the (assembly) code is actually written. | |
3349 | */ | |
3350 | SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; | |
3351 | SYMBOL_CLASS (s) = LOC_BLOCK; | |
3352 | SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL, | |
3353 | (struct objfile *) NULL); | |
3354 | TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = builtin_type_void; | |
3355 | ||
3356 | /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */ | |
3357 | b = new_block (1); | |
3358 | SYMBOL_BLOCK_VALUE (s) = b; | |
3359 | BLOCK_START (b) = sigtramp_address; | |
3360 | BLOCK_END (b) = sigtramp_end; | |
3361 | BLOCK_FUNCTION (b) = s; | |
3362 | BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0); | |
3363 | add_block (b, st); | |
3364 | sort_blocks (st); | |
3365 | ||
3366 | /* Make a MIPS_EFI_SYMBOL_NAME entry for it */ | |
3367 | { | |
3368 | struct mips_extra_func_info *e = | |
3369 | ((struct mips_extra_func_info *) | |
3370 | xzalloc (sizeof (struct mips_extra_func_info))); | |
3371 | ||
3372 | e->numargs = 0; /* the kernel thinks otherwise */ | |
3373 | /* align_longword(sigcontext + SIGFRAME) */ | |
3374 | e->pdr.frameoffset = 0x150; | |
3375 | e->pdr.framereg = SP_REGNUM; | |
e157305c PS |
3376 | /* read_next_frame_reg provides the true pc at the time of signal */ |
3377 | e->pdr.pcreg = PC_REGNUM; | |
5f7b2142 ILT |
3378 | e->pdr.regmask = -2; |
3379 | e->pdr.regoffset = -(41 * sizeof (int)); | |
3380 | e->pdr.fregmask = -1; | |
e157305c | 3381 | e->pdr.fregoffset = -(7 * sizeof (int)); |
5f7b2142 | 3382 | e->pdr.isym = (long) s; |
579f0258 | 3383 | e->pdr.adr = sigtramp_address; |
5f7b2142 ILT |
3384 | |
3385 | current_objfile = st->objfile; /* Keep new_symbol happy */ | |
3386 | s = new_symbol (MIPS_EFI_SYMBOL_NAME); | |
3387 | SYMBOL_VALUE (s) = (int) e; | |
3388 | SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE; | |
3389 | SYMBOL_CLASS (s) = LOC_CONST; | |
3390 | SYMBOL_TYPE (s) = builtin_type_void; | |
3391 | current_objfile = NULL; | |
3392 | } | |
bd5635a1 | 3393 | |
5f7b2142 | 3394 | BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s; |
bd5635a1 | 3395 | } |
dac4929a SG |
3396 | |
3397 | ||
3398 | /* Fake up identical offsets for all sections. */ | |
3399 | ||
3400 | struct section_offsets * | |
3401 | mipscoff_symfile_offsets (objfile, addr) | |
3402 | struct objfile *objfile; | |
3403 | CORE_ADDR addr; | |
3404 | { | |
3405 | struct section_offsets *section_offsets; | |
3406 | int i; | |
3407 | ||
5f7b2142 ILT |
3408 | section_offsets = ((struct section_offsets *) |
3409 | obstack_alloc (&objfile->psymbol_obstack, | |
3410 | (sizeof (struct section_offsets) | |
3411 | + (sizeof (section_offsets->offsets) | |
3412 | * (SECT_OFF_MAX - 1))))); | |
dac4929a SG |
3413 | |
3414 | for (i = 0; i < SECT_OFF_MAX; i++) | |
3415 | ANOFFSET (section_offsets, i) = addr; | |
3416 | ||
3417 | return section_offsets; | |
3418 | } | |
bd5635a1 RP |
3419 | \f |
3420 | /* Initialization */ | |
3421 | ||
80d68b1d FF |
3422 | static struct sym_fns ecoff_sym_fns = |
3423 | { | |
5f7b2142 ILT |
3424 | "ecoff", /* sym_name: name or name prefix of BFD target type */ |
3425 | 5, /* sym_namelen: number of significant sym_name chars */ | |
3426 | mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */ | |
3427 | mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */ | |
3428 | mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */ | |
3429 | mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */ | |
3430 | mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */ | |
3431 | NULL /* next: pointer to next struct sym_fns */ | |
80d68b1d FF |
3432 | }; |
3433 | ||
bd5635a1 | 3434 | |
4ad1963e | 3435 | void |
bd5635a1 RP |
3436 | _initialize_mipsread () |
3437 | { | |
5f7b2142 ILT |
3438 | add_symtab_fns (&ecoff_sym_fns); |
3439 | ||
3440 | /* Missing basic types */ | |
3441 | ||
3442 | builtin_type_string = | |
3443 | init_type (TYPE_CODE_STRING, | |
3444 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3445 | 0, "string", | |
3446 | (struct objfile *) NULL); | |
3447 | builtin_type_complex = | |
3448 | init_type (TYPE_CODE_FLT, | |
3449 | TARGET_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3450 | 0, "complex", | |
3451 | (struct objfile *) NULL); | |
3452 | builtin_type_double_complex = | |
3453 | init_type (TYPE_CODE_FLT, | |
3454 | TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, | |
3455 | 0, "double complex", | |
3456 | (struct objfile *) NULL); | |
3457 | builtin_type_fixed_dec = | |
3458 | init_type (TYPE_CODE_INT, | |
3459 | TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3460 | 0, "fixed decimal", | |
3461 | (struct objfile *) NULL); | |
3462 | builtin_type_float_dec = | |
3463 | init_type (TYPE_CODE_FLT, | |
3464 | TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3465 | 0, "floating decimal", | |
3466 | (struct objfile *) NULL); | |
bd5635a1 | 3467 | } |